CN215865731U

CN215865731U - Portable optical fiber macrobend testing device

Info

Publication number: CN215865731U
Application number: CN202121006578.XU
Authority: CN
Inventors: 宋龙胜; 姜建新; 于丽丽; 于振兴
Original assignee: Weihai Weixin Fiber Technology Co ltd
Current assignee: Weihai Weixin Fiber Technology Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2022-02-18
Anticipated expiration: 2031-05-12

Abstract

The utility model discloses a portable optical fiber macrobend testing device which comprises a bottom plate, wherein a fixed winding post and a movable winding post for winding optical fibers are arranged on the bottom plate; firstly, moving all movable wrapping posts to one side, reserving one end of an optical fiber for measuring the length, then clamping the optical fiber by using a second clamping tool, enabling the other end of the optical fiber to penetrate through a gap between a fixed wrapping post and the movable wrapping post, then moving each movable wrapping post to the other side of a sliding groove, after the optical fiber is wound around the last movable wrapping post, penetrating through the gap between the fixed wrapping post and the movable wrapping post, then moving each movable wrapping post to one line of the fixed wrapping post, finally tensioning the optical fiber to pass through the fixed wrapping post, and clamping the other end of the optical fiber by using the first clamping tool for testing, when the macrobend loss is measured by the device, 10 wrapping posts are adopted, so that the requirement on the number of turns can be met only by winding once, and the working efficiency is greatly improved; because every wrapping post only winds a circle, the effectual loss that causes that the interval between every circle differs that has avoided.

Description

Portable optical fiber macrobend testing device

Technical Field

The utility model relates to the technical field of testing devices, in particular to a portable optical fiber macrobend testing device.

Background

The G657 optical fiber and part of the G652D optical fiber used in the communication field need to be subjected to macrobend loss test, and the optical fiber needs to be wound into a plurality of circles with the diameters of 30mm, 15mm and 10mm in the test process according to the standard requirements. In reality, the fiber winding work is mainly performed manually, and the fiber winding mode, the tightness degree and the fiber winding distance of each person are different, so that the final test results are different. Therefore, additional influence caused by uncertainty of a manual fiber winding mode needs to be solved so as to improve the consistency and accuracy of the test.

Prior art patent numbers: CN110426184A provides an efficient and convenient optical fiber macrobend loss testing device, which first fixes core columns with different sizes and a bottom plate according to different testing requirements, and if a plurality of core columns are needed, ensures that the centers between the core columns are located on the central axis of a through hole of a first fixing block; secondly, fixing the assembled macrobend testing device on an optical fiber analyzer to ensure that the center between the positioning rod and the core column and the optical port of the optical fiber analyzer are on the same central line; then fixing two ends of the short optical fiber sample by using an optical fiber clamp, and respectively placing the processed end faces at two optical ports of an optical fiber analyzer; then, by adopting a winding method of 8 characters, the optical fiber passes through the gap of the positioning rod and the through hole of the first fixed pressing block, passes through the center of the core column and then clockwise surrounds the core column at the left side for one circle, passes through the center of the core column and then anticlockwise surrounds the core column at the right side for one circle, the rest part is attached to the working table of the optical fiber analyzer for fixation, and the optical fiber can be loosely wound on the core columns with different diameters for different circles according to the test requirement; and finally, measuring the power spectrum of the optical fiber in a bending state by using an optical fiber analyzer, then reducing the bent optical fiber released from the central line to the original state, and measuring the power spectrum in a straight state, thereby obtaining the macrobending loss value of the optical fiber under different wavelengths. However, the device has complex winding, different winding tightness and easily inconsistent winding spacing distance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that optical fiber winding is not compact and the winding spacing distance is different in the prior art, and provides a portable optical fiber macrobend testing device.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a portable optical fiber macrobend testing device comprises a bottom plate, wherein a fixed winding post and a movable winding post for winding optical fibers are arranged on the bottom plate;

the fixed wrapping posts are arranged into five, five fixed wrapping posts are fixedly arranged on the bottom plate, the bottom center of each fixed wrapping post is on the same straight line, the distance between every two fixed wrapping posts is equal, each fixed wrapping post is provided with a sliding groove, each sliding groove is formed between every two fixed wrapping posts, the distance between every two sliding grooves is equal, each sliding groove is internally movably arranged on the movable wrapping post, and the upper surface of the bottom plate is fixedly provided with a first clamping tool and a second clamping tool for clamping optical fibers.

Preferably, the sliding groove and the movable wrapping post are provided with five, and the bottoms of the five movable wrapping posts are fixedly connected together.

Preferably, the bottoms of the five movable winding posts are fixedly provided with sliding plates, two ends of each sliding plate are fixedly provided with baffles, and the sliding plates are perpendicular to the sliding grooves.

Preferably, an empty groove is formed in the bottom plate and communicated with the sliding groove, and the sliding plate is movably arranged in the empty groove.

Preferably, the diameter of the cross section of the movable winding post is smaller than the width of the sliding groove.

Preferably, fixed blocks are fixedly arranged on the first clamping tool and the second clamping tool, hole grooves for the optical fibers to pass through are formed in the fixed blocks, and fixed columns are fixedly arranged on the side walls of the fixed blocks.

Compared with the prior art, the utility model has the beneficial effects that:

1. when this device measured the macrobend loss, adopted 10 wrapping posts, consequently only needed the wire winding once just can reach the number of turns requirement, improved work efficiency greatly.

2. When this device measures the macrobend loss, because every wrapping post only winds the round, the effectual loss that causes that differs in interval of having avoided between every circle.

Drawings

Fig. 1 is a schematic structural diagram of a portable optical fiber macrobend testing device according to the present invention;

fig. 2 is a schematic structural diagram of a part of a portable optical fiber macrobend testing device according to the present invention;

fig. 3 is a schematic structural diagram of a local part of a portable optical fiber macrobend testing device according to the present invention;

fig. 4 is an enlarged view of a proposed in the present invention.

In the figure: the device comprises a fixed winding post 1, a movable winding post 2, a bottom plate 3, a sliding groove 4, a first clamping tool 5, a second clamping tool 6, a fixed block 7, a hole groove 8, a hollow groove 9, a sliding plate 10, a fixed column 11 and a baffle 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a portable optical fiber macrobend testing device comprises a bottom plate 3, wherein a fixed winding post 1 and a movable winding post 2 for winding optical fibers are arranged on the bottom plate 3;

five fixed wrapping posts 1 are arranged, five fixed wrapping posts 1 are fixedly arranged on a bottom plate 3, the centers of the bottoms of the fixed wrapping posts 1 are on the same straight line, the distance between each fixed wrapping post 1 is equal, a sliding groove 4 is formed between each fixed wrapping post 1, the distance between each sliding groove 4 is equal, a movable wrapping post 2 is movably arranged in each sliding groove 4, in order to facilitate the sliding of the movable wrapping post 2 in each sliding groove 4, the diameter of the cross section of each movable wrapping post 2 is smaller than the width of each sliding groove 4, five sliding grooves 4 and five movable wrapping posts 2 are arranged, the bottoms of the five movable wrapping posts 2 are fixedly connected together, sliding plates 10 are fixedly arranged at the bottoms of the five movable wrapping posts 2, baffles 12 are fixedly arranged at two ends of each sliding plate 10, the sliding plates 10 are perpendicular to the sliding grooves 4, empty grooves 9 are formed in the bottom plate 3, the empty grooves 9 are communicated with the sliding grooves 4, and the sliding plates 10 are movably arranged in the empty grooves 9, slide 10 removes in dead slot 9, slide 10 set up convenient five movable wrapping posts 2 and can remove together in spout 4, baffle 12 prevents that slide 10 from breaking away from dead slot 9, the upper surface of bottom plate 3 is still fixed to be provided with and is used for centre gripping optic fibre to use first clamping means 5 and second clamping means 6, all fixed being provided with fixed block 7 on first clamping means 5 and the second clamping means 6, offer the hole groove 8 that is used for optic fibre to pass on the fixed block 7, the fixed column 11 that is provided with of lateral wall of fixed block 7, fixed column 11 is used for the fixed at optic fibre both ends.

The working principle of the utility model is as follows: firstly all move movable wrapping post 2 to one side, leave behind the measurement length with optic fibre one end and carry optic fibre with second clamping tool 6, another passes the gap between fixed wrapping post 1 and movable wrapping post 2, then move 5 movable wrapping posts 2 to 4 opposite sides of spout, walk around last movable wrapping post 2 with optic fibre after, pass the gap between fixed wrapping post 1 and movable wrapping post 2, then move 5 movable wrapping posts 2 to fixed wrapping post 1 on-line, taut optic fibre is walked around fixed column wrapping post 1 at last and is pressed from both sides tight another end of optic fibre with first clamping tool 5, test.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the designated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A portable optical fiber macrobend testing device comprises a bottom plate (3), and is characterized in that a fixed winding post (1) and a movable winding post (2) for winding optical fibers are arranged on the bottom plate (3);

fixed wrapping post (1) sets up to five, five fixed wrapping post (1) is fixed to be set up on bottom plate (3), just the bottom center of fixed wrapping post (1) is on a straight line, every the interval of fixed wrapping post (1) equals, every spout (4) have been seted up between fixed wrapping post (1), and every the interval equals between spout (4), spout (4) internalization sets up activity wrapping post (2), the upper surface of bottom plate (3) still fixed be provided with be used for centre gripping optic fibre with first centre gripping instrument (5) and second centre gripping instrument (6).

2. A portable optical fiber macrobend testing device according to claim 1, wherein the sliding groove (4) and the movable winding post (2) are provided with five, and the bottoms of the five movable winding posts (2) are fixedly connected together.

3. A portable optical fiber macrobend testing device according to claim 2, wherein sliding plates (10) are fixedly arranged at the bottoms of five movable winding posts (2), baffle plates (12) are fixedly arranged at two ends of each sliding plate (10), and the sliding plates (10) are perpendicular to the sliding chute (4).

4. A portable optical fiber macrobend testing device according to claim 3, wherein an empty slot (9) is formed in the bottom plate (3), the empty slot (9) is communicated with the sliding slot (4), and the sliding plate (10) is movably arranged in the empty slot (9).

5. A portable optical fiber macrobend testing device according to claim 1, wherein the cross-sectional diameter of the movable winding post (2) is smaller than the width of the sliding groove (4).

6. The portable optical fiber macrobend testing device according to claim 1, wherein the first clamping tool (5) and the second clamping tool (6) are both fixedly provided with a fixed block (7), the fixed block (7) is provided with a hole slot (8) for an optical fiber to pass through, and a fixed column (11) is fixedly arranged on a side wall of the fixed block (7).