CN211013866U

CN211013866U - Optical fiber ribbon residue torsion testing device

Info

Publication number: CN211013866U
Application number: CN201922022022.9U
Authority: CN
Inventors: 孔超; 薛梦驰; 时彬; 杨先金; 李吉超
Original assignee: Chengdu Tairui Communication Equipment Detection Co ltd
Current assignee: Chengdu Tairui Communication Equipment Detection Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-07-14
Anticipated expiration: 2029-11-21

Abstract

The utility model relates to a remaining test technical field that twists reverse discloses a remaining testing arrangement that twists reverse of optical fiber ribbon. The method comprises the following steps: the top end of the supporting structure is provided with an optical fiber ribbon fixing clamp for clamping a measured optical fiber ribbon, and a tray which is fixed with the supporting structure and is positioned on a horizontal plane is arranged between the top end of the supporting structure and a base of the supporting structure; light source carousel and calibrated scale set gradually on the tray, and light source carousel, calibrated scale, tray have the through-hole of same center, and the through-hole is used for vertical through being surveyed the optical fiber area, and light source carousel, calibrated scale can independent horizontal rotation each other, sets up the light source along with the light source carousel is rotatory on the light source carousel, and the light source shines and is surveyed the fine shade of light and be in on the calibrated scale. The scheme effectively reduces reading errors, avoids the influence of external force on the optical fiber ribbon, thereby maintaining the natural state of the optical fiber ribbon and improving the accuracy of angle reading. Simultaneously the utility model also discloses a test method of above-mentioned optical fiber ribbon residual torsion testing arrangement.

Description

Optical fiber ribbon residue torsion testing device

Technical Field

The utility model relates to a remaining test technical field that twists reverse, especially a remaining testing arrangement that twists reverse of optical fiber ribbon.

Background

The optical communication technology has the advantages of high capacity, low loss and the like, and is an important foundation of modern communication.

In recent years, with the deep implementation of network strong strategy, broadband Chinese strategy, information network major engineering and the like, the optical communication industry in China develops rapidly, and the application range of optical fibers and optical cables is getting larger and larger.

The optical fiber structure in the optical cable mainly comprises: fiber optic ribbons and discrete optical fibers.

The optical fiber ribbon is a thin flat ribbon formed by parallelly arranging and solidifying a plurality of (2-24) optical fibers, the optical fiber in the optical fiber ribbon is a fiber ribbon optical cable, and the optical fiber ribbon optical cable is commonly used for a local network trunk section with a large fiber core capacity requirement. In a new era with large information explosion, the requirement on the capacity of a fiber core is increased under the promotion of the construction requirement of a new generation of network, so that the requirements on the optical fiber ribbon optical cable are increased in the trunk sections of the core layer and the access layer of the metropolitan area network.

When the optical fiber ribbon cable is spliced by the ribbon optical fiber splicer, the optical fiber of one optical fiber ribbon can be spliced at one time, so that the splicing efficiency is greatly improved.

Due to the structure of the ribbon itself, ribbons can twist naturally under most conditions of use. The torsion that the optic fibre area produced can influence and continue or influence the use of protective case that continues, and the purpose that the remaining torsion experiment of optic fibre area is exactly that whether the test optic fibre area can produce such influence to ensure the normal use of optic fibre area optical cable.

The existing optical fiber ribbon residual torsion testing device is self-made according to the test requirements and the related standard schematic diagrams. It comprises the following components: the dustproof cover comprises a dustproof cover, a vertical hinged door, a base, a stand column, an upper cross arm, a lower cross arm, an optical fiber ribbon fixing clamp, a pointer, a dial and a load block. When the optical fiber ribbon is used, the upper end of a 50cm optical fiber ribbon is fixed, the lower end of the optical fiber ribbon is clamped with a pointer, 1N load is hung, the optical fiber ribbon is free from torsion, and the scale number is recorded according to the scale indicated by the pointer; then removing the load, twisting the optical fiber ribbon, recording scales after the pointer is stabilized, and calculating the twisting angle; the residual twist is calculated by dividing the twist angle by the ribbon length. The adoption of the scheme has the following disadvantages:

a. the pointer is clamped at the lower end of the optical fiber ribbon and is difficult to adjust balance, so that an external force is applied to the optical fiber ribbon to influence the torsion angle of the optical fiber ribbon; and the condition of front and back decentration is easy to occur, thereby influencing the accuracy of the test result.

b. The dead weight of the pointer is difficult to avoid, so that the test conditions can not meet the standard requirements.

c. According to the pointer pointing reading, the reading is limited by objective factors such as a dust cover, a fixing clamp and an upper cross arm, so that the reading is difficult to be performed from the direction perpendicular to the dial, the reading error is large, and the accuracy of the test result is influenced.

d. The twist angle needs to be calculated twice from the pointer reading, so errors can be introduced twice, thereby affecting the final test result.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: to solve the existing problems, the optical fiber ribbon residual torsion testing device is provided.

The utility model adopts the technical scheme as follows: an optical fiber ribbon residual twist testing apparatus comprising: the device comprises a supporting structure, a light source turntable, a dial and a tray, wherein an optical fiber ribbon fixing clamp 2 is arranged at the top end of the supporting structure and used for clamping a measured optical fiber ribbon, and the tray which is fixed with the supporting structure and is positioned on a horizontal plane is arranged between the top end of the supporting structure and a base of the supporting structure; light source carousel and calibrated scale set gradually on the tray, light source carousel, calibrated scale, tray have the through-hole of same center, the through-hole is used for vertical through being surveyed the optical fiber tape, light source carousel, calibrated scale can mutually independent horizontal rotation, set up the light source along with the light source carousel is rotatory on the light source carousel, the light source shines and is surveyed the fine shade of light and be in on the calibrated scale.

Furthermore, the supporting structure comprises a stand column, an upper cross arm and a lower cross arm, the upper cross arm is located at the top end of the stand column and is vertically fixed with the stand column, an optical fiber ribbon fixing clamp is arranged on the upper cross arm, the lower cross arm is located between the upper cross arm and a base of the supporting structure, the distance between the lower cross arm and the upper cross arm is adjustable, the lower cross arm is used for supporting a tray, and the tray can horizontally move relative to the lower cross arm.

Further, the light source rotating disc and the light source are fixed through L-type supporting columns.

Further, the tray includes tray cushion cap, tray cylinder, the tray cylinder is located tray cushion cap upper surface, the through-hole of tray is set up at tray cushion cap, tray cylinder's center.

Further, light source carousel and calibrated scale are cylindrical, light source carousel and calibrated scale are through the through-hole cover at center separately on the tray cylinder, light source carousel and calibrated scale all can be independent rotate around the tray cylinder.

Furthermore, the side of the light source turntable is provided with a screw hole for fixing the L-type supporting column.

Furthermore, the side surface of the tray bearing platform is provided with a screw hole for fixing with the lower cross arm.

Further, the optical fiber ribbon residual torsion testing device further comprises a light-shading dust cover for covering the testing device.

Furthermore, a vertical hinged door is arranged on the front face of the shading and dust-proof cover.

Compared with the prior art, the beneficial effects of adopting the technical scheme are as follows:

the technical scheme of the utility model is that a small hole is reserved in the center of the dial disc, so that the optical fiber ribbon to be tested can pass through the dial disc, and the load is arranged below the dial disc, so that the optical fiber ribbon can be kept in a natural state after the load is unloaded, and the requirement of the test standard is met; secondly, the light source irradiates the optical fiber ribbon to form a shadow of an image projected on the dial to determine the torsion position of the optical fiber ribbon, so that the reading error of the angle can be reduced, the rotation angle of the optical fiber ribbon can be accurately determined, and the test accuracy is improved; secondly pass through the utility model discloses technical scheme can once only directly read out the torsion angle, has avoided the error of multiple measurement angle.

Drawings

Fig. 1 is a schematic diagram of one embodiment of a structure of a residual torsion testing apparatus for an optical fiber ribbon according to the present invention.

Fig. 2 is a schematic structural view of the tray, the light source turntable, and the dial of the present invention.

Fig. 3 is a schematic diagram of one embodiment of the structure of the device for testing residual torsion of an optical fiber ribbon according to the present invention.

The reference numbers are upper cross arm-1, optical fiber ribbon fixing clamp-2, dial-3, light source-4, L-type pillar-5, light source turntable-6, load-7, upright post-8, lower cross arm-9, pallet-10, base-11 and shading-dust cover-12;

dial preformed hole-21, dial-22, dial bottom concave surface-23, light source turntable inner hole-24, screw hole-25, tray inner hole-26, tray cylinder-27, tray bearing platform-28 and screw hole-29.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, a residual twist testing device for optical fiber ribbons comprises: the device comprises a supporting structure, a light source turntable 6, a dial 3 and a tray 10, wherein the top end of the supporting structure is provided with an optical fiber ribbon fixing clamp 2 for clamping a measured optical fiber ribbon, and the tray 10 fixed with the supporting structure and positioned on a horizontal plane is arranged between the top end of the supporting structure and a base 11 of the supporting structure; light source carousel 6 and calibrated scale 3 set gradually on tray 10, light source carousel 6, calibrated scale 3, tray 10 have the through-hole of same center, the through-hole is used for vertical through being surveyed the optical fiber tape, light source carousel 6, calibrated scale 3 can mutually independent horizontal rotation, set up light source 4 along with light source carousel 6 is rotatory on the light source carousel 6, the shadow of the optic fibre of being surveyed is shone to light source 4 on the calibrated scale 3.

The device reserves a through hole in the center of the dial 3, so that the optical fiber ribbon to be measured can pass through the dial 3, the optical fiber ribbon is irradiated by the light source 4 to form an image and is projected on the dial 3, and the twisting position of the optical fiber ribbon can be determined by rotating the light source 4 to find the thinnest position of the shadow of the optical fiber ribbon. Secondly, the dial 3 can rotate horizontally, the initial position of the optical fiber ribbon when the optical fiber ribbon is suspended with 1N load is found through the light source, the dial is rotated to enable the scale 0 to coincide with the shadow of the optical fiber ribbon, then the optical fiber ribbon is twisted after the 1N load is unloaded, the light source 4 is rotated again to find the thinnest position of the shadow of the optical fiber ribbon, the twisted angle number of the optical fiber ribbon is directly read through the shadow of the optical fiber ribbon thrown on the dial 3, and the residual twist of.

By using the device, reading errors are effectively reduced, and the influence of external force on the optical fiber ribbon is avoided, so that the natural state of the optical fiber ribbon is kept, the accuracy of angle reading is improved, and the test result is more accurate.

An embodiment of one of the support structures: the supporting structure comprises a stand column 8, an upper cross arm 1 and a lower cross arm 9, wherein the upper cross arm 1 is positioned at the top end of the stand column 8 and is vertically fixed with the stand column 8, an optical fiber ribbon fixing clamp 2 is arranged on the upper cross arm 8, the lower cross arm 9 is positioned between the upper cross arm 1 and a base of the supporting structure, the distance between the lower cross arm 9 and the upper cross arm 1 is adjustable, the adjustment can be realized by adjusting the lower cross arm 9, the lower cross arm 9 is used for supporting a tray 10, the tray can horizontally move relative to the lower cross arm, so that the relative positions of an optical fiber ribbon and a through hole can be adjusted, and the problem that the optical fiber ribbon is always. The supporting structure is simple, and the top of the supporting structure supports the optical fiber belt and the middle of the supporting structure supports the tray 10.

Preferably, the light source rotating disk 6 and the light source 4 are fixed by L type support 5, and the invention is not limited to L type support, so that the light source 4 is located at the side of the light source rotating disk 6, and the light ribbon can be shaded on the dial disk 3 when irradiated.

Preferably, as shown in fig. 2, the tray 10 includes a tray platform 28 and a tray cylinder 27, the tray cylinder 27 is located on the upper surface of the tray platform 28, the tray cylinder 27 is used for being sleeved with the light source turntable 6 and the dial 3, a through hole 26 of the tray 10 is arranged at the center of the tray platform 28 and the tray cylinder 27, and the through hole 26 is used for passing through the measured optical fiber ribbon.

Preferably, light source carousel 6 and calibrated scale 3 are cylindrical, light source carousel 6 and calibrated scale 3 overlap on tray cylinder 27 through the through-hole at respective center, light source carousel 6 and calibrated scale 3 all can be alone rotate around tray cylinder 27, and light source carousel 6 and calibrated scale 3 can rotate around tray cylinder 27, and in order to make calibrated scale 3 surface big enough, the through-hole of calibrated scale 3 includes first through-hole part (calibrated scale preformed hole 1) and second through-hole part (calibrated scale bottom surface concave surface 3), the second through-hole part overlaps in tray cylinder 27 side, and first through-hole part is less than tray cylinder 27, is located tray cylinder 27 above for through being surveyed the fine area.

Preferably, the side of the light source rotating disc 6 is provided with a screw hole 25 for fixing an L-type support, and the through hole of the light source rotating disc 6 is an inner hole 24 of the light source rotating disc, it should be noted here that the light source rotating disc is not limited to the rotation of the whole disc body, but a tray with a "T" shaped groove on the periphery of the side can be adopted, the light source can be fixed by arranging a structure matched with the "T" shaped groove, and the rotation of the light source can also be realized, or a double-groove tray can be adopted instead.

Preferably, the side surface of the tray bearing platform 28 is provided with a screw hole 29 for fixing with the lower cross arm 9, and the through hole of the tray is a tray inner hole 26.

In any of the embodiments described above, as shown in FIG. 3, the residual twist test fixture for fiber optic ribbons further includes a dust light shield 12 covering the test fixture. The front of the shading dust cover 12 is provided with a vertical hinged door, so that the test operation is convenient, and the observation of the optical fiber ribbon image is facilitated.

The testing method of the optical fiber ribbon residual torsion testing device in the embodiment comprises the following steps:

fixing the upper end of an optical fiber ribbon to be tested on an optical fiber ribbon fixing clamp 2, and adding 1N load after the lower end of the optical fiber ribbon passes through the through holes reserved in the dial 3, the light source turntable 6 and the tray 10; the dial 3 and the light source 4 can be independently selected in 360 degrees, wherein the light source turntable 6 is firstly rotated to adjust the side light source 4 to irradiate the shadow of the optical fiber ribbon projected on the dial 3 until the relatively thinnest optical fiber ribbon shadow is formed, then the rotation is stopped, and then the dial 3 is rotated to enable the scale 0 to be aligned with the optical fiber ribbon shadow at the moment;

after the 1N load is removed, the optical fiber ribbon is still, the light source turntable 6 is rotated again to find the thinnest shadow of the optical fiber ribbon projected on the dial 3 by the light source 4, the scale is directly read out, and the residual torsion of the optical fiber ribbon is calculated.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An optical fiber ribbon residual torsion testing device, comprising: the device comprises a supporting structure, a light source turntable, a dial and a tray, wherein an optical fiber ribbon fixing clamp 2 is arranged at the top end of the supporting structure and used for clamping a measured optical fiber ribbon, and the tray which is fixed with the supporting structure and is positioned on a horizontal plane is arranged between the top end of the supporting structure and a base of the supporting structure; light source carousel and calibrated scale set gradually on the tray, light source carousel, calibrated scale, tray have the through-hole of same center, the through-hole is used for vertical through being surveyed the optical fiber tape, light source carousel, calibrated scale can mutually independent horizontal rotation, set up the light source along with the light source carousel is rotatory on the light source carousel, the light source shines and is surveyed the fine shade of light and be in on the calibrated scale.

2. The optical fiber ribbon residual twist test apparatus of claim 1, wherein the support structure includes a column, an upper cross arm and a lower cross arm, the upper cross arm is disposed at a top end of the column and vertically fixed to the column, the upper cross arm is provided with the optical fiber ribbon fixing clip, the lower cross arm is disposed between the upper cross arm and a base of the support structure, a distance between the lower cross arm and the upper cross arm is adjustable, the lower cross arm is used for supporting the tray, and the tray can horizontally move relative to the lower cross arm.

3. The fiber optic ribbon residual twist testing apparatus of claim 1, wherein the light source turntable and the light source are secured together by L-type posts.

4. The optical fiber ribbon residual torsion testing device according to claim 1, wherein the tray includes a tray bearing platform and a tray cylinder, the tray cylinder is located on the upper surface of the tray bearing platform, and the center of the tray bearing platform and the center of the tray cylinder are provided with the through hole of the tray.

5. The fiber optic ribbon residual twist testing apparatus of claim 4, wherein the light source turntable and the dial are cylindrical, the light source turntable and the dial are sleeved on the tray cylinder through respective central through holes, and the light source turntable and the dial are both independently rotatable around the tray cylinder.

6. The fiber optic ribbon residual torsion testing apparatus of claim 5, wherein the light source turntable is provided with screw holes on a side thereof for fixing L-type supports.

7. The optical fiber ribbon residual torsion testing apparatus according to claim 6, wherein the side surface of the tray bearing platform is provided with screw holes for fixing with the lower cross arm.

8. The fiber optic ribbon residual twist testing device of any one of claims 1-7, further comprising a light shielding dust cap covering the testing device.

9. The optical fiber ribbon residual torsion testing device according to claim 8, wherein a vertical hinged door is arranged on the front face of the light-shielding dust cover.