Optical fiber continuity detection device

Abstract

The optical fiber breakage detection device comprises a light shield and a detection plate which are buckled with each other, at least one partition layer is arranged in the light shield, a viewing port is arranged on the top surface of the light shield and is spaced from the partition layer, the opposite side frame of the detection plate is provided with the partition layer which can be inserted and fixed, a fiber lead-in notch is arranged on the side frame of the detection plate and is spaced from the partition layer, an IR5 type infrared detection coating is arranged on the inner surface of the bottom plate of the detection plate, and a plurality of fiber running clamping grooves which can fix the fiber to bend are arranged in the region opposite to the fiber lead-in notch on the inner surface. The device is internally provided with the clamping groove structure, is externally shielded and sealed by the light shield, the fiber is bent to be arc-shaped, the overflow light signal is detected according to the fiber bending state, and the purpose of detecting the breakage of the fiber is achieved. The device has the advantages of simple structure, flexible and convenient use, avoidance of physical damage of the fiber caused by the setting of the loop, accurate and rapid detection, and easy popularization.

Description

Technical Field

[0001] This disclosure relates to the field of optical fiber detection technology, specifically to an optical fiber continuity detection device. Background Technology

[0002] The information disclosed in this background section is intended only to enhance understanding of the overall background of this disclosure and is not necessarily to be construed as an admission or in any way an implication that the information constitutes related technology that is already known to those skilled in the art.

[0003] In field fiber optic maintenance, it is often necessary to locate a usable fiber from dozens of fibers in a fiber optic cable without interrupting communication, in order to further perform channel adjustments, splicing, or repairs. Traditional detection methods use a loopback detection method, which involves setting a loop around the stripped fiber core and using changes in optical power at the other end to determine the fiber to be located. However, this method suffers from several drawbacks. First, the reliability of locating the usable fiber through loopback is inaccurate. Second, a loopback radius that is too small can physically damage the fiber, even causing breakage. Third, arbitrary loopbacks can negatively impact the quality of communication. Fourth, searching through dozens of fibers one by one for a usable fiber is labor-intensive and inefficient. Utility Model Content

[0004] Therefore, this disclosure provides an optical fiber continuity detection device to solve the problem of difficulty in detecting the continuity of optical fibers in communication in related technologies.

[0005] To achieve the goal of more quickly determining the continuity of optical fibers in communication, the embodiments of this disclosure provide the following technical solutions:

[0006] Optical fibers used in communications can leak light signals when bent. Different fibers exhibit different levels of leaked light signals at different bending radii. Therefore, this invention provides a device for determining the continuity of an optical fiber even when it is bent. The fiber continuity detection device uses an infrared detector to locate the leaked light signals at different bending radii to identify the fiber in use.

[0007] Specifically, this utility model provides an optical fiber continuity detection device, including a light shield and a detection plate that are interlocked, wherein the detection plate is box-shaped;

[0008] A light shield, having at least one internal partition, and an observation port on the top surface of the light shield that alternates with the partition;

[0009] The detection plate has a partition groove on its opposite side frame for inserting and fixing the partition. The side frame of the detection plate has an optical fiber introduction notch spaced apart from the partition groove. The inner surface of the bottom plate of the detection plate is covered with an IR5 type infrared detection coating. On the inner bottom surface of the detection plate, in the area opposite to the optical fiber introduction notch, there are multiple optical fiber routing slots that can bend and fix the optical fiber. The bending radius of the optical fiber set in the optical fiber routing slot is not less than 3mm.

[0010] Furthermore, the fiber optic routing slot includes three fixed points. The first fixed point is attached to the inner arc surface of the bent fiber, and the other two fixed points are located on both sides of the first fixed point and are attached to the outer arc surface of the bent fiber.

[0011] Furthermore, the contact surface between the outer surface of the fixed point and the optical fiber is a smooth arc-shaped surface.

[0012] Furthermore, the fiber optic routing slots are configured to have four slots, and the radii of the arcs formed by the fiber optic cables placed inside the four slots are 10mm, 8mm, 5mm and 3mm respectively.

[0013] Furthermore, the light shield includes two partitions that divide the detection plate into three detection areas, and each detection area has an optical fiber introduction notch on its opposite side.

[0014] Furthermore, the side of the light shield has a pressure notch corresponding to the optical fiber introduction notch, and the pressure notch is located at the outer edge of the light shield.

[0015] According to the embodiments of this disclosure, compared with existing detection methods, the device has the following advantages: The device includes a light-shielding cover and a detection plate that interlock; the light-shielding cover has at least one partition inside, and the top surface of the light-shielding cover has observation ports alternating with the partitions; the side frame opposite the detection plate has a partition for insertion and fixation, and the side frame of the detection plate has an optical fiber introduction notch spaced apart from the partition; the inner surface of the bottom plate of the detection plate is covered with an IR5 type infrared detection coating, and multiple optical fiber routing slots that allow the optical fiber to be bent and fixed are provided in the area opposite to the optical fiber introduction notch on the inner surface. This device has an internal slot structure and is externally sealed by a light-shielding cover. It detects the continuity of the optical fiber by bending it into an arc shape and detecting the leakage signal under the bent state. Its structure is simple, flexible, and convenient to use, avoiding physical damage to the optical fiber caused by loops, and the detection is accurate, fast, efficient, and easy to promote. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments or related technologies of this disclosure, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this disclosure can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effectiveness and purpose that this disclosure can achieve, should still fall within the scope of the technical content disclosed herein.

[0018] Figure 1 This is a perspective view of the open state of an optical fiber continuity detection device according to an exemplary embodiment;

[0019] Figure 2 This is a perspective view of a light shield in a fiber optic continuity detection device according to an exemplary embodiment.

[0020] Figure 3 This is a diagram illustrating the internal structure of the detection board in an optical fiber continuity detection device according to an exemplary embodiment.

[0021] In the diagram: 1. Light shield; 2. Detection plate; 3. Partition; 4. Observation port; 5. Separator groove; 6. Fiber optic cable introduction notch; 7. Fiber optic cable routing slot; 8. Wire clamping notch. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0023] The terms “upper,” “lower,” “left,” “right,” and “middle” used in this specification are merely for clarity of description and are not intended to limit the scope of this disclosure. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of this disclosure.

[0024] like Figure 1 Figure 2 Figure 3The diagram illustrates an optical fiber continuity detection device provided in an embodiment of this invention. The device includes a light-shielding cover 1 and a detection plate 2 that interlock. The light-shielding cover 1 has at least one partition 3 inside, and its top surface has observation openings 4 alternating with the partition 3. The detection plate 2 has a partition groove 5 on its opposite side frame for inserting and fixing the partition 3. An optical fiber introduction notch 6 is provided on the side frame of the detection plate 2 at a position spaced apart from the partition groove 5. The inner surface of the bottom plate of the detection plate 2 is covered with an IR5 type infrared detection coating, which can detect light signals in the 750nm-2130nm range. Multiple optical fiber routing slots 7 are provided on the inner bottom surface of the detection plate 2 in the area opposite to the optical fiber introduction notch 6, allowing the optical fiber to be bent and fixed. The bending radius of the optical fiber in the optical fiber routing slot 7 is not less than 3mm to prevent excessive bending and damage.

[0025] This device features an internal slot structure and is externally sealed by a light-shielding cover 1. It works by bending the optical fiber into an arc shape and detecting the leakage signal under the bending state of the optical fiber, thereby achieving the purpose of detecting the continuity of the optical fiber. Its structure is simple, flexible and convenient to use, avoids the physical damage to the optical fiber caused by setting up a loop, and provides accurate and fast detection, making it easy to promote.

[0026] In this invention, two partitions 3 are provided, dividing the detection plate 2 into three regions. The partitions 3 correspond to the two dividing slots 5 within the detection plate 2, and the partitions 3 can be inserted into the dividing slots 5 to ensure a tight fit. Each region has an optical fiber introduction notch 6 on its side, which corresponds to the wire pressing notch 8 in the light shield 11. Each of the three regions has an optical fiber routing slot 7, with four sets of optical fiber routing slots 7 in each region, forming four monitoring points. The radii R of the arcs formed by the optical fibers placed in the four optical fiber routing slots 7 are 10mm, 8mm, 5mm, and 3mm, respectively. The four monitoring points are a, b, c, and d, corresponding to optical fiber arc radii decreasing from large to small.

[0027] Participate again Figure 3 As shown, the fiber optic routing slot 7 includes three fixed points. The first fixed point is attached to the inner arc surface of the fiber after bending, and the other two fixed points are located on both sides of the first fixed point and are attached to the outer arc surface of the fiber after bending. The dashed line structure shown in the figure is only used to better illustrate the bending radius of the fiber when it is placed in the fiber optic routing slot 7, and is not a limitation of this utility model.

[0028] The optical fiber is held in place by a fixed point, so the contact surface between the outer surface of the fixed point and the optical fiber is a smooth arc surface, avoiding sharp edges that could damage the optical fiber.

[0029] To ensure the airtightness of the light shield 1 after it is fastened, the side of the light shield 1 has a crimping notch 8 corresponding to the optical fiber introduction notch 6, and the crimping notch 8 is located at the outer edge of the light shield 1.

[0030] When using this device, first charge the base plate under visible light for several seconds. Place the stripped optical fiber to be tested into the two opposite fiber inlet notches 6. Insert the optical fiber into the fiber direction slot 7 on the base plate, and place it at monitoring point a according to the fiber direction marking line. Cover with the light shield 1. Since the light shield 1 has a wire pressing notch 8, it will not break the already inserted optical fiber after covering. Probe the interior through the observation port 4 using the optical detection device. If the coating of the base plate near the bend of the optical fiber appears bright, it indicates that the optical fiber is transmitting a signal. If not, place the optical fiber at monitoring point b and observe again. If it still does not appear, place it at monitoring points c and d, and repeat this process until the base plate of the detection plate 2 is seen to emit light.

[0031] In this embodiment, detection begins at the largest bending radius 'a'. If no fiber is detected, detection gradually moves towards smaller radii. This maximizes the protection of the optical fiber, preventing physical damage due to a sudden bending radius that is too small, and also prevents severe signal distortion caused by excessive bending. Furthermore, the device features three relatively independent detection areas, allowing simultaneous detection of multiple optical fibers, thus improving efficiency. Because the partition 3 in the light shield 1 completely separates the three areas, making them opaque, the detected optical fibers operate independently and without interference.

[0032] In this embodiment, if the object being detected can be detected at bending radii of 10mm, 8mm, or at all four points along bending radii, the optical fiber is likely multimode. If the object is detected only at bending radii of 5mm or 3mm, the optical fiber is likely single-mode. Furthermore, to immediately detect the presence of a light signal and improve detection efficiency, the fiber can be placed directly at bending radii of 5mm or 3mm. If light is emitted, it indicates a signal; if no light is emitted, it indicates no signal. However, in this case, due to the small bending radius, there is a risk of damaging the optical fiber. This device can also be used to detect different types of optical fibers.

[0033] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although the present disclosure has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, such modifications or improvements made without departing from the spirit of the present disclosure are all within the scope of protection claimed by the present disclosure.

Claims

1. A fiber optic continuity detection device, characterized in that, It includes a light shield and a detection plate that interlock with each other, wherein the detection plate is box-shaped; A light shield, having at least one internal partition, and an observation port on the top surface of the light shield that alternates with the partition; The detection plate has a partition groove on its opposite side frame for inserting and fixing the partition. The side frame of the detection plate has an optical fiber introduction notch spaced apart from the partition groove. The inner surface of the bottom plate of the detection plate is covered with an IR5 type infrared detection coating. On the inner bottom surface of the detection plate, in the area opposite to the optical fiber introduction notch, there are multiple optical fiber routing slots that can bend and fix the optical fiber. The bending radius of the optical fiber set in the optical fiber routing slot is not less than 3mm.

2. The fiber optic continuity detection device according to claim 1, characterized in that, The fiber optic routing slot includes three fixed points. The first fixed point is attached to the inner arc surface of the fiber after bending, and the other two fixed points are located on both sides of the first fixed point and are attached to the outer arc surface of the fiber after bending.

3. The fiber optic continuity detection device according to claim 2, characterized in that, The outer surface of the fixed point and the contact surface with the optical fiber are smooth arc-shaped surfaces.

4. The fiber optic continuity detection device according to claim 3, characterized in that, The fiber optic routing slots are configured with four slots, and the optical fibers are placed in the four slots respectively, forming arcs with radii of 10mm, 8mm, 5mm and 3mm respectively.

5. The fiber optic continuity detection device according to claim 1, characterized in that, The light shield includes two partitions that divide the detection plate into three detection areas, and each detection area has an optical fiber introduction notch on its opposite side.

6. The fiber optic continuity detection device according to claim 5, characterized in that, The side of the light shield has a pressure notch corresponding to the optical fiber introduction notch, and the pressure notch is located at the outer edge of the light shield.

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