Optical fiber bend detection apparatus

Abstract

The utility model discloses a kind of optical fiber bending degree detection equipment, it includes base disc and movable scale block installed in the side wall of base disc, the optical fiber after bending is abutted at the scale block of base disc side wall, if scale block generates displacement relative to base disc, then the bending degree of optical fiber exceeds appropriate range, need to re-bend optical fiber, then carry out secondary detection, until the bending degree of optical fiber is in appropriate range. The optical fiber bending degree detection equipment of the application can quickly judge whether the bending degree of optical fiber meets the standard, without complex calculation and measurement, so that the installation work of optical fiber is more intuitive, fast and standardized.

Description

Technical Field

[0001] This utility model relates to the field of measuring equipment technology, and in particular to fiber optic bending detection equipment. Background Technology

[0002] When installing optical fibers into relevant equipment, it is usually necessary to bend the fibers to a certain extent. During this process, it is necessary to check whether the fibers are excessively bent. If the fibers are excessively bent, light cannot pass through normally, resulting in a decrease in signal transmission performance. Secondly, it will cause stress accumulation inside the fibers, which may lead to fiber breakage. Moreover, when transmitting lasers with high output power, the laser may overflow and scatter, causing personal injury. Therefore, there is an urgent need for a detection device that can check the degree of fiber bending and reduce excessive bending of fibers during installation. Utility Model Content

[0003] The purpose of this invention is to provide an optical fiber bending detection device to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The solution to the technical problem of this utility model is:

[0005] Fiber optic bending testing equipment, comprising:

[0006] The base plate is disc-shaped, and the plane on which the base plate is located is the base plane;

[0007] A scale block is installed on the side wall of the base plate. The scale block can move and be positioned on the base plate between a first position and a second position along a direction close to or away from the center of the base plate. The scale block is provided with a first scale groove, and the base plate is provided with a second scale groove. The first scale groove and the second scale groove extend in the same direction.

[0008] When the scale block is in the first position, the projections of the first scale groove and the second scale groove on the base plane are collinear;

[0009] When the scale block is between the first position and the second position, the projections of the first scale groove and the second scale groove on the base plane are parallel to each other.

[0010] This technical solution has at least the following beneficial effects: After bending the optical fiber, the edge of the base plate is pressed against the bend of the optical fiber, and the scale block is able to abut against the optical fiber tube. The maximum bending angle of the optical fiber is less than the maximum angle between any two straight lines tangent to the diameter of the base plate. At this time, after the optical fiber is pressed against the base plate, when the bending degree of the optical fiber is within a suitable range, the optical fiber will not put pressure on the scale block, that is, the scale block always stays in the first position. The operator can observe that the first scale groove and the second scale groove are flush with each other. If the first scale groove and the second scale groove are not collinear, it means that the position of the scale block relative to the first sector has changed, that is, the bending of the optical fiber is too large, which puts pressure on the scale block and drives the scale block to move. At this time, the operator needs to adjust the bending degree of the optical fiber to reduce the bending degree of the optical fiber.

[0011] This device simply requires the optical fiber to be placed firmly against the base plate and the scale block to quickly determine whether the fiber's curvature meets the standard. No complicated calculations or measurements are needed, making the installation of optical fibers more intuitive, faster, and more standardized.

[0012] As a further improvement to the above technical solution, the base plate includes a second sector and a first sector connected to each other, the centers of the second sector and the first sector coincide, the diameter of the first sector is smaller than the diameter of the second sector, the scale block and the second scale groove are both disposed at the first sector, and when the scale block is in the first position, the distance between the end of the scale block away from the first sector and the center is equal to the diameter of the second sector.

[0013] As a further improvement to the above technical solution, a first mounting groove is provided on the side wall of the first sector, the scale block slides and is positioned in the first mounting groove, the first mounting groove is provided with an opening on one side along the axial direction of the first sector, and a sealing member is provided on the first sector, the sealing member covering the opening.

[0014] As a further improvement to the above technical solution, the first sector portion is provided with the second scale groove on both sides of the opening.

[0015] As a further improvement to the above technical solution, a third scale groove is provided on the side of the closure member away from the first sector portion, and the projections of the third scale groove and the second scale groove on the base plane coincide.

[0016] As a further improvement to the above technical solution, a limiting groove is formed on the side wall of the first mounting groove, and a limiting block is provided on the scale block. The limiting block can move and be positioned within the limiting groove along with the scale block.

[0017] As a further improvement to the above technical solution, the first sector portion is provided with a second mounting groove that communicates with the first mounting groove. An elastic element is provided in the second mounting groove. One end of the elastic element is connected to the groove wall of the second mounting groove, and the other end is connected to the scale block. When the elastic element is in its natural state, the scale block is located in the first position.

[0018] As a further improvement to the above technical solution, a connector is provided on the first sector, and the connector passes through the closure and is connected to the first sector.

[0019] As a further improvement to the above technical solution, the closure is made of a transparent material.

[0020] As a further improvement to the above technical solution, the first sector is provided with a plurality of scale blocks along the circumferential direction. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the fiber optic bending detection device of this utility model;

[0023] Figure 2 This is an assembly diagram of the enclosure and base plate of the fiber optic bending detection device of this utility model;

[0024] Figure 3 This is a cross-sectional view of the scale block of the fiber optic bending detection device of this utility model from a side view perspective.

[0025] Figure Labels

[0026] 1. Base plate; 11. Second scale groove; 12. First sector; 121. First mounting groove; 122. Second mounting groove; 123. Limiting groove; 13. Second sector; 2. Scale block; 21. First scale groove; 22. Limiting block; 3. Elastic element; 4. Closing element; 41. Connecting element. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] Reference Figure 1 The fiber optic bending detection device provided in this application includes a base plate 1 and a scale block 2 that is movable and installed on the side wall of the base plate 1. The bent fiber optic cable is placed against the scale block 2 on the side wall of the base plate 1. If the scale block 2 is displaced relative to the base plate 1, the bending degree of the fiber optic cable exceeds the appropriate range. The fiber optic cable needs to be bent again and then a second detection is performed until the bending degree of the fiber optic cable is within the appropriate range.

[0032] Specifically, the base plate 1 is disc-shaped, with the plane where the base plate 1 is located as the base plane. The scale block 2 is installed on the side wall of the base plate 1 and can move and be positioned on the base plane in a direction close to or away from the center of the base plate 1. The scale block 2 can move between a first position and a second position. The scale block 2 is provided with a first scale groove 21, and the base plate 1 is provided with a second scale groove 11. When the scale block 2 is in the first position, the projections of the first scale groove 21 and the second scale groove 11 on the base plane are collinear. When the scale block 2 is between the first position and the second position, the projections of the first scale groove 21 and the second scale groove 11 on the base plane are parallel to each other.

[0033] As described above, after bending the optical fiber, the edge of the base plate 1 is pressed against the bend of the optical fiber, and the scale block 2 is able to abut against the optical fiber tube. The maximum bending angle of the optical fiber is less than the maximum angle between any two straight lines tangent to the diameter of the base plate 1. When the optical fiber conforms to this specification and is pressed against the base plate 1, the optical fiber will not put pressure on the scale block 2 when the bending degree of the optical fiber is within a suitable range. That is, the scale block 2 always stays in the first position. The operator can observe that the first scale groove 21 and the second scale groove 11 are flush with each other. If the first scale groove 21 and the second scale groove 11 are not collinear, it means that the position of the scale block 2 relative to the first sector 12 has changed. That is, the optical fiber is bent too much, which puts pressure on the scale block 2 and drives the scale block 2 to move. At this time, the operator needs to adjust the bending degree of the optical fiber to reduce the bending degree of the optical fiber.

[0034] The device simply requires the optical fiber to be placed tightly against the base plate 1 and the scale block 2 to quickly and easily determine whether the bending degree of the optical fiber meets the standard, without the need for complicated calculations and measurements, making the installation of optical fibers more intuitive, faster and more standardized.

[0035] Reference Figure 1 , Figure 2 and Figure 3 The base plate 1 includes a first sector 12 and a second sector 13 connected to each other. The centers of the first sector 12 and the second sector 13 coincide. The diameter of the first sector 12 is smaller than the diameter of the second sector 13. The scale block 2 and the second scale groove 11 are both disposed at the first sector 12. When the scale block 2 is in the first position, the distance between the end of the scale block 2 away from the first sector 12 and the center is equal to the diameter of the second sector 13.

[0036] The second sector 13 and the scale block 2 in the first position are set to be at the same side length of the same circle. As can be seen from the above, the side length of the disk and the second sector 13 can be determined by the optical fiber within a reasonable bending range. When testing the optical fiber, one end of the optical fiber at the bend is placed against the second sector 13, and then it is observed whether the other end of the optical fiber collides with the scale block 2, causing the scale block 2 to produce a relative displacement, thereby determining whether the optical fiber is excessively bent.

[0037] Reference Figure 1 The first sector 12 is provided with multiple scale blocks 2 along the circumference, and the angle between each scale block 2 is equal.

[0038] Furthermore, the first sector 12 and the second sector 13 are integrally formed. Specifically, a portion of the outer periphery of the sector is cut off from a circular base plate 1 to form the first sector 12 with a smaller diameter. This processing method can directly form the first sector 12 and the second sector 13, reducing the error caused by the gap between two different processed products. Then, the scale block 2 is installed on the first sector block. The side of the scale block 2 away from the axis of the base plate 1 is arc-shaped. The arc design allows the optical fiber to fit more closely with the scale block 2, reducing the generation of errors.

[0039] To facilitate observation of the relative displacement between the scale block 2 and the first sector 12, and to further enhance the installation stability of the scale block 2 on the first sector 12, the first sector 12 has a first mounting groove 121 on its annular sidewall. The scale block 2 slides and is positioned within the first mounting groove 121, moving closer to or further away from the base plate 1. One end of the first mounting groove 121 along the axial direction of the base plate 1 has an opening, and a sealing member 4 is provided on the first sector 12, which completely covers the opening.

[0040] When installing the scale block 2, simply install the scale block 2 directly onto the first sector 12, and then cover the opening with the sealing member 4 to seal the first mounting groove 121, thereby locking the scale block 2 in the first mounting groove 121. No other positioning structure is required, and the scale block 2 can be disassembled and installed simply by removing the sealing member 4, making it easy to replace.

[0041] In this embodiment, the first sector 12 has a second mounting groove 122 that communicates with the first mounting groove 121. An elastic member 3 is provided in the second mounting groove 122. One end of the elastic member 3 is connected to the groove wall of the second mounting groove 122 and the other end is connected to the scale block 2. When the elastic member 3 is in its natural state, the scale block 2 is located in the first position. By adopting the above technical solution, the elastic member 3 can provide a stable elastic force to push the scale block 2 and stabilize it in the first position.

[0042] As a further embodiment, the first scale groove 21 is disposed on the side of the scale block 2 away from the first sector portion 12. The first sector portion 12 is provided with a second scale groove 11 at both ends of the opening along the circumference of the base plate 1. The second scale grooves 11 on both sides of the opening are arranged so that the front and rear ends of the first scale groove 21 are aligned with the two second scale grooves 11 respectively. This design not only enables the scale block 2 to perform more accurate detection when working, but also allows the scale block 2 to be observed in its original position in the first position through the second scale grooves 11 on both sides when not working.

[0043] In this embodiment, the thickness of the first sector 12 is lower than the thickness of the second sector 13. The height difference between the two forms the mounting position of the closure 4. When the closure 4 is installed on the base plate 1, the closure 4 can be initially positioned by simply placing it on the first sector 12, thereby improving the stability of the closure 4 during installation.

[0044] When the closure 4 is installed on the first sector 12, it may obstruct the observation of whether the first scale groove 21 and the second scale groove 11 are aligned. Therefore, the closure 4 is made of transparent material. The transparent material of the closure 4 can eliminate visual obstruction and allow the first scale groove 21 and the second scale groove 11 to be observed intuitively without affecting the sealing effect of the first mounting groove 121.

[0045] Specifically, the material of the closure 4 can be high-strength glass or acrylic sheet.

[0046] As a further embodiment of the above embodiments, a third scale groove is provided on the side of the closure member 4 away from the first sector 12. The projections of the third scale groove and the second scale groove 11 on the base plane coincide with each other. This allows the fiber bending degree to be judged by the relative position between the third scale groove and the first scale groove 21 when the fiber is being tested, making the test more accurate.

[0047] In order to stably connect the closure 4 to the first sector 12, refer to Figure 1 A connector 41 is provided on the first sector 12. The connector 41 passes through the closure 4 and is connected to the first sector 12. Specifically, the connector 41 is a connecting bolt. The first sector 12 is provided with multiple connecting bolts. All the multiple connecting bolts pass through the closure 4 and are threaded to the first sector 12. Through the connecting bolts, the closure 4 and the first sector 12 can be stably connected. Moreover, this connection method has a simple structure and is easy to disassemble and assemble.

[0048] The first sector 12 has a limiting groove 123 at the bottom of the first mounting groove 121. The limiting groove 123 has a rectangular cross-section on the base plane. A limiting block 22 is provided on the side of the scale block 2 near the first sector 12. The limiting block 22 has a rectangular cross-section on the base plane. The limiting block 22 is engaged in the limiting groove 123 and can move and be positioned along the direction of approaching or moving away from the center of the base plate 1 within the limiting groove 123. The limiting block 22 is positioned relative to the scale block 2 within the first mounting groove 121. The locking mechanism secures the movement path of the scale block 2. When the scale block 2 moves to the first position, the limiting block 22 abuts against the inner wall of the limiting groove 123 away from the center of the base plate 1. When the scale block 2 moves to the second position, the limiting block 22 abuts against the inner wall of the limiting groove 123 near the center of the base plate 1. At the same time, the two side walls of the limiting groove 123 along the radial direction of the base plate 1 can clamp the limiting block 22. The limiting block 22 prevents the scale block 2 from moving along the circumferential direction of the base plate 1, thereby improving the movement stability of the scale block 2.

[0049] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An optical fiber bending detection device, characterized in that, include: The base plate is disc-shaped, and the plane on which the base plate is located is the base plane; A scale block is installed on the side wall of the base plate. The scale block can move and be positioned on the base plate between a first position and a second position along a direction close to or away from the center of the base plate. The scale block is provided with a first scale groove, and the base plate is provided with a second scale groove. The first scale groove and the second scale groove extend in the same direction. When the scale block is in the first position, the projections of the first scale groove and the second scale groove on the base plane are collinear; When the scale block is between the first position and the second position, the projections of the first scale groove and the second scale groove on the base plane are parallel to each other.

2. The fiber optic bending detection device according to claim 1, characterized in that, The base plate includes a first sector and a second sector connected to each other. The center of the second sector and the center of the first sector coincide. The diameter of the first sector is smaller than the diameter of the second sector. The scale block and the second scale groove are both disposed at the first sector. When the scale block is in the first position, the distance between the end of the scale block away from the first sector and the center is equal to the diameter of the second sector.

3. The fiber optic bending detection device according to claim 2, characterized in that, The first sector has a first mounting groove on its side wall. The scale block slides and is positioned in the first mounting groove. The first mounting groove has an opening on one side along the axial direction of the first sector. A closure is provided on the first sector, and the closure covers the opening.

4. The fiber optic bending detection device according to claim 3, characterized in that, The first sector is provided with the second scale groove on both sides of the opening.

5. The fiber optic bending detection device according to claim 3, characterized in that, The closure member has a third scale groove on the side away from the first sector, and the projections of the third scale groove and the second scale groove on the base plane coincide.

6. The fiber optic bending detection device according to claim 3, characterized in that, A limiting groove is formed on the side wall of the first mounting groove, and a limiting block is provided on the scale block. The limiting block can move and be positioned within the limiting groove along with the scale block.

7. The fiber optic bending detection device according to claim 3, characterized in that, The first sector has a second mounting groove that communicates with the first mounting groove. An elastic element is provided in the second mounting groove. One end of the elastic element is connected to the groove wall of the second mounting groove and the other end is connected to the scale block. When the elastic element is in its natural state, the scale block is located in the first position.

8. The fiber optic bending detection device according to claim 3, characterized in that, A connector is provided on the first sector, and the connector passes through the closure and is connected to the first sector.

9. The fiber optic bending detection device according to claim 3, characterized in that, The closure is made of a transparent material.

10. The fiber optic bending detection device according to claim 2, characterized in that, The first sector has a plurality of scale blocks arranged circumferentially.

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