Novel optical fiber macrobend testing device

Abstract

The utility model relates to the technical field of optical fiber macro-bending testing, and discloses a novel optical fiber macro-bending testing device which comprises a supporting plate, a sliding plate block and a fixed plate block, the U-shaped wheel is rotationally connected to the upper surfaces of the sliding plate block and the fixed plate block; and the fixed clamp assembly is arranged on the upper surfaces of the sliding plate and the fixed plate, and the surface of the fixed plate is connected with a limiting sliding block. According to the novel optical fiber macrobend testing device, one end of a tested optical fiber is fixed on the right side fixing clamp assembly, the remaining part of the optical fiber is wound around the U-shaped wheel close to the fixing clamp assembly, then the optical fiber is pulled to the U-shaped wheel at the topmost end in the middle to be wound around, and the optical fiber is pulled to the U-shaped wheel close to the left side fixing clamp assembly all the time; finally, the optical fiber penetrates through the fixing clamp assemblies to be fixed, the sliding plate block is pushed, the remaining optical fiber is slightly loosened along with pushing of the sliding plate block to be attached to the limiting sliding block, and the optical fiber is fixed to the fixing clamp assembly on the left side.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber macrobending testing technology, specifically a novel optical fiber macrobending testing device. Background Technology

[0002] Optical fiber, short for optical waveguide fiber, is a type of fiber made of glass or plastic that serves as a means of light transmission, operating on the principle of total internal reflection. Optical fibers can be classified according to their core refractive index distribution, the transmission mode of light within the fiber, the operating wavelength, and the materials used in its manufacture. For example, based on transmission mode, they can be divided into single-mode fiber and multimode fiber. Single-mode fiber has a thinner core diameter and is generally suitable for long-distance transmission; multimode fiber has a thicker core diameter and is suitable for short-distance transmission. Optical fibers are widely used in communications, medical, industrial, military, and energy fields. Furthermore, optical fibers offer advantages such as low loss, wide bandwidth, and light weight, making them one of the primary methods of modern information transmission. Macro-bending loss refers to the attenuation of optical signals when an optical fiber is subjected to significant bending. When an optical fiber is bent to a certain extent, the transmission path of the internal optical signal changes, causing some optical signal leakage or scattering, thus weakening the signal strength. This loss not only reduces communication quality but can also lead to signal interruption or data loss; therefore, macro-bending testing equipment is required for optical fibers.

[0003] Traditional fiber macrobending testing devices suffer from several drawbacks. The fiber twists during unidirectional bending, and the measurement of transmission loss is unstable under different bending radii. This not only affects testing efficiency and accuracy but also increases testing errors and prevents stable measurements. Therefore, a novel fiber macrobending testing device is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a novel fiber macrobending testing device to solve the aforementioned technical problems that not only affect testing efficiency and accuracy but also lead to increased testing errors and the inability to perform stable measurements.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a novel optical fiber macrobending testing device, comprising:

[0008] A support plate, and a sliding plate and a fixed plate disposed on the upper surface of the support plate, wherein the sliding plate is slidably connected to the support plate and the fixed plate is fixedly connected to the support plate;

[0009] A U-shaped wheel is provided on the upper surface of the sliding plate and the fixed plate, and the U-shaped wheel is rotatably connected to the sliding plate and the fixed plate;

[0010] A fixing fixture assembly is located on the upper surfaces of the sliding plate and the fixing plate, with a limit slider evenly and movably connected to the surface of the fixing plate. One end of the optical fiber under test is fixed to the right-side fixing fixture assembly, with a portion of the fiber left unused for connection to the testing instrument. The remaining fiber is then routed around the U-shaped wheel near the fixing fixture assembly, pulled to the top center U-shaped wheel, and then routed back to the U-shaped wheel near the left-side fixing fixture assembly. Finally, the fiber is passed through the fixing fixture assembly and secured, pushing the sliding plate. The remaining fiber moves freely with the sliding plate until it engages with the limit slider. The fiber is then fixed to the left-side fixing fixture assembly, and the left end of the fiber under test is connected to the testing instrument. This process ensures testing efficiency and accuracy, reduces testing errors, and allows for stable measurements.

[0011] Preferably, positioning blocks are evenly installed on the outer side of the sliding plate, and limit blocks are installed on the lower surface of the positioning blocks. The sliding plate can drive the positioning blocks to move, and the positioning blocks can drive the limit blocks to move in the same direction.

[0012] Preferably, the inner wall of the support plate is provided with uniformly spaced positioning grooves, and a limiting groove is provided at the bottom of the positioning grooves. The support plate can be moved in a limited manner with the corresponding structure through the positioning grooves and the limiting groove.

[0013] Preferably, the positioning block and the positioning groove correspond in position and shape, and the limiting block and the limiting groove also correspond in position and shape. Both the limiting block and the limiting groove are T-shaped, and both the positioning groove and the positioning block are square. When the sliding plate is connected to the support plate, the positioning block descends along the positioning groove, while the limiting block enters the interior of the limiting groove along the positioning groove, allowing the positioning block to enter the inner cavity of the limiting groove. When the sliding plate moves along the support plate, the limiting block performs a translational operation along the limiting groove.

[0014] Preferably, the fixing clamp assembly includes a U-shaped base, with side clamps inserted into the inner wall of the U-shaped base, and a threaded rod added to the back of the U-shaped base. The side clamps can be used to fix the optical fiber on the U-shaped base.

[0015] Preferably, the outer end of the threaded rod is equipped with an anti-slip handle, and the inner end of the threaded rod extends inward through the outer wall of the U-shaped seat and connects to the side clamping plate. The anti-slip handle drives the threaded rod to rotate on the U-shaped seat, and adjusts the direction of the threaded rod so that the threaded rod drives the side clamping plate to clamp and loosen the optical fiber on the U-shaped seat.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a novel optical fiber macrobending testing device, which has the following beneficial effects:

[0018] This novel fiber macrobending testing device involves fixing one end of the fiber under test to the right-side fixture assembly, leaving a portion of the fiber unused for connection to the testing instrument. The remaining fiber is then routed around a U-shaped wheel near the fixture assembly, pulled to the top center U-shaped wheel, and then routed back to the left-side fixture assembly. Finally, the fiber is passed through the fixture assembly for fixation, and a sliding plate is pushed. The remaining fiber moves freely with the sliding plate until it engages with the limiting slider. The fiber is then fixed to the left-side fixture assembly, and the left end of the fiber is connected to the testing instrument. This process ensures testing efficiency and accuracy, reduces testing errors, and enables stable measurements. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the sliding plate and its connection structure of the present invention;

[0021] Figure 3 This is a schematic cross-sectional view of the support plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the fixture assembly structure of this utility model.

[0023] In the diagram: 1. Support plate; 2. Sliding plate; 3. Fixed plate; 4. U-shaped wheel; 5. Fixing clamp assembly; 6. Positioning groove; 7. Positioning block; 8. Limiting block; 9. Limiting groove; 10. U-shaped seat; 11. Side clamp; 12. Threaded rod; 13. Anti-slip handle; 14. Limiting slider. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a technical solution, a novel optical fiber macrobending testing device, comprising: (see details) Figure 1 The support plate 1, and the sliding plate 2 and the fixed plate 3 disposed on the upper surface of the support plate 1, wherein the sliding plate 2 is slidably connected to the support plate 1, and the fixed plate 3 is fixedly connected to the support plate 1.

[0026] U-shaped wheel 4 is disposed on the upper surface of sliding plate 2 and fixed plate 3, and U-shaped wheel 4 is rotatably connected to sliding plate 2 and fixed plate 3;

[0027] A fixing fixture assembly 5 is disposed on the upper surface of the sliding plate 2 and the fixing plate 3, and a limiting slider 14 is uniformly and movably connected to the surface of the fixing plate 3. By fixing one end of the optical fiber to be tested on the right fixing fixture assembly 5, leaving a portion of the optical fiber for docking with the testing instrument, the remaining portion of the optical fiber is routed around the U-shaped wheel 4 near the fixing fixture assembly 5, then pulled to the top U-shaped wheel 4 in the middle, and then routed around again until the optical fiber is pulled to the U-shaped wheel 4 near the left fixing fixture assembly 5. Finally, the optical fiber is passed through the fixing fixture assembly 5 for fixing, and the sliding plate 2 is pushed. The remaining portion of the optical fiber moves easily with the push of the sliding plate 2 until the sliding plate 2 is in contact with the limiting slider 14. The optical fiber is then fixed on the left fixing fixture assembly 5, and the left end of the optical fiber to be tested is docked with the testing instrument. This method not only ensures testing efficiency and accuracy but also reduces testing errors and enables stable measurement.

[0028] Please see Figure 2 , Figure 3 Positioning blocks 7 are evenly installed on the outer side of the sliding plate 2, and limiting blocks 8 are installed on the lower surface of the positioning blocks 7. The sliding plate 2 can drive the positioning blocks 7 to move, and the positioning blocks 7 can drive the limiting blocks 8 to move in the same direction. The inner wall of the support plate 1 is evenly provided with positioning grooves 6, and a limiting groove 9 is provided at the bottom of the positioning grooves 6. The support plate 1 can perform limited movement operations with the corresponding structure through the positioning grooves 6 and the limiting grooves 9. The positioning blocks 7 and the positioning grooves 6 correspond in position and shape, and the limiting blocks 8 and the limiting grooves 9 correspond in position and shape. Both the limiting blocks 8 and the limiting grooves 9 are T-shaped designs, and both the positioning grooves 6 and the positioning blocks 7 are square designs. When the sliding plate 2 is connected to the support plate 1, the positioning blocks 7 descend along the positioning grooves 6, and the limiting blocks 8 enter the interior of the limiting grooves 9 along the positioning grooves 6, so that the positioning blocks 7 enter the inner cavity of the limiting grooves 9 along the positioning grooves 6. When the sliding plate 2 moves along the support plate 1, the limiting blocks 8 perform translation operations along the limiting grooves 9.

[0029] Please see Figure 4 The fixing clamp assembly 5 includes a U-shaped base 10, with a side clamping plate 11 inserted into the inner wall of the U-shaped base 10, and a threaded rod 12 added to the back of the U-shaped base 10. The side clamping plate 11 can fix the optical fiber on the U-shaped base 10. The outer end of the threaded rod 12 is equipped with an anti-slip handle 13, and the inner end of the threaded rod 12 extends inward through the outer wall of the U-shaped base 10 and connects with the side clamping plate 11. The anti-slip handle 13 drives the threaded rod 12 to rotate on the U-shaped base 10, and adjusts the direction of the threaded rod 12, so that the threaded rod 12 drives the side clamping plate 11 to clamp and loosen the optical fiber on the U-shaped base 10.

[0030] This solution involves fixing one end of the optical fiber to be tested onto the right-side fixing clamp assembly 5, leaving a portion of the fiber for connection to the testing instrument. The remaining fiber is then routed around the U-shaped wheel 4 near the fixing clamp assembly 5, and then pulled to the top center U-shaped wheel 4, continuing until it reaches the U-shaped wheel 4 near the left-side fixing clamp assembly 5. Finally, the fiber is passed through the fixing clamp assembly 5 for fixation, and the sliding plate 2 is pushed. The remaining fiber moves easily with the sliding plate 2 until it engages with the limiting slider 14. The fiber is then fixed onto the left-side fixing clamp assembly 5. Next, the left end of the optical fiber to be tested is connected to the tester. When the sliding plate 2 is connected to the support plate 1, the positioning block 7 descends along the positioning groove 6, and the limiting block 8 enters the interior of the limiting groove 9 along the positioning groove 6, so that the positioning block 7 enters the inner cavity of the limiting groove 9 along the positioning groove 6. When the sliding plate 2 moves along the support plate 1, the limiting block 8 performs a translation operation along the limiting groove 9. The anti-slip handle 13 drives the threaded rod 12 to rotate on the U-shaped seat 10 and adjusts the direction of the threaded rod 12, so that the threaded rod 12 drives the side clamping plate 11 to clamp and loosen the optical fiber on the U-shaped seat 10.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel optical fiber macrobending testing device, characterized in that, include: The support plate (1), and a sliding plate (2) and a fixed plate (3) disposed on the upper surface of the support plate (1), wherein the sliding plate (2) is slidably connected to the support plate (1), and the fixed plate (3) is fixedly connected to the support plate (1); U-shaped wheel (4) is provided on the upper surface of sliding plate (2) and fixed plate (3), and U-shaped wheel (4) is rotatably connected to sliding plate (2) and fixed plate (3); A fixing fixture assembly (5) is disposed on the upper surface of the sliding plate (2) and the fixing plate (3), and a limit slider (14) is uniformly and movably connected to the surface of the fixing plate (3).

2. The novel fiber macrobending testing device according to claim 1, characterized in that: Positioning blocks (7) are evenly installed on the outer side of the sliding plate (2), and limiting blocks (8) are installed on the lower surface of the positioning blocks (7).

3. The novel fiber macrobending testing device according to claim 2, characterized in that: The inner wall of the support plate (1) is uniformly provided with positioning grooves (6), and a limiting groove (9) is provided at the bottom of the positioning grooves (6).

4. The novel fiber macrobending testing device according to claim 3, characterized in that: The positioning block (7) corresponds to the positioning groove (6) in position and shape, and the limiting block (8) corresponds to the limiting groove (9) in position and shape. Both the limiting block (8) and the limiting groove (9) are T-shaped designs, and both the positioning groove (6) and the positioning block (7) are square designs.

5. The novel fiber macrobending testing device according to claim 1, characterized in that: The fixing clamp assembly (5) includes a U-shaped seat (10), and a side clamp plate (11) is inserted into the inner wall of the U-shaped seat (10), and a threaded rod (12) is added to the back of the U-shaped seat (10).

6. The novel fiber macrobending testing device according to claim 5, characterized in that: The outer end of the threaded rod (12) is equipped with an anti-slip handle (13), and the inner end of the threaded rod (12) extends inward through the outer wall of the U-shaped seat (10) and connects with the side clamp (11).

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