An optical fiber tester

Abstract

The application discloses an optical fiber tester, relates to the field of optical fiber testing, and comprises a connecting module, the upper end of the connecting module is connected with a testing module, the surface of the testing module is provided with a testing socket, the upper end of the connecting module is provided with a fixing plate near one end of the testing socket, the upper end of the fixing plate is provided with an adjusting frame, the inside of the adjusting frame is provided with a placing frame, limit grooves are formed in the inner walls of the placing frame, the inner walls of the limit grooves are provided with pushing strips for pushing optical fiber connectors, and the surface of the placing frame is slidably connected with two groups of sliding strips on the inner walls of the two sides. When a large number of optical fiber lines are detected, the tester can realize the pushing, limiting, testing socket docking and pulling-out whole process of the optical fiber connector through the linear motion of the pushing plate, greatly shortens the testing period, and when the optical fiber connector is pulled out, the two clamping strips are reversely rotated, the optical fiber line is fixed through mechanical extrusion, the clamping force is uniformly distributed, and local stress is avoided to cause the optical fiber to be bent or broken.

Description

Technical Field

[0001] This application relates to the field of fiber optic testing, and in particular to a fiber optic tester. Background Technology

[0002] In the era of widespread application of optical fiber communication, the quality of optical fiber network directly affects the stability of data transmission. However, problems such as installation damage, connection stains, or aging attenuation can easily lead to link failures. These types of failures cannot be ignored in the optical cable resources of substations in the power industry. When power supply company communication professionals conduct inspections and maintenance of optical cable resources in substations, they need accurate testing methods. For this reason, optical fiber testers have become the core tools for detecting these problems. When using them, simply install an adapter connector at the end of the optical fiber and insert it into the tester's test head interface. The instrument can quickly complete optical signal coupling and parameter analysis, accurately locate faults, or evaluate performance.

[0003] However, when using the aforementioned fiber optic tester, in scenarios involving continuous testing of large quantities of optical fibers, the operation process of the tester reveals obvious shortcomings in efficiency and durability. When several optical fibers need to be tested one by one, the connector of each optical fiber must be repeatedly and precisely inserted into the tester's test head socket. Each time it is inserted, the connector position is finely adjusted visually or by touch to ensure complete contact. After the test is completed, the connector is pulled out and the next optical fiber is replaced. However, the repeated friction between the connector end face and the test head socket will gradually wear down the contact surface, thereby reducing the positioning accuracy and affecting the testing efficiency. Utility Model Content

[0004] To address the issue of wear and tear at the ends of fiber optic connectors, this application provides a fiber optic tester.

[0005] The fiber optic tester provided in this application adopts the following technical solution:

[0006] An optical fiber tester includes a connection module, a test module connected to the upper end of the connection module, a test socket on the surface of the test module, a fixing plate near the test socket on the upper end of the connection module, an adjustment frame on the upper end of the fixing plate, a placement frame inside the adjustment frame, limit grooves on both sides of the inner wall of the placement frame, push strips for pushing optical fiber connectors on the inner wall of the limit grooves, two sets of sliding strips slidably connected to the inner walls on both sides of the surface of the placement frame, a movable plate fixed at one end of each set of sliding strips, a rotating shaft rotatably connected inside the movable plate, a clamping strip for holding optical fiber lines on the surface of the rotating shaft, and the push strips driving the rotating shaft to rotate through a transmission structure.

[0007] With the above setup, during use, first install the fiber optic connector at the end of the fiber optic cable, then place the fiber optic connector inside the mounting frame on the fixed plate surface. Next, push the push bar; the push bar will slide along the inner wall of the limiting groove and abut against the rear end of the fiber optic connector, thus pushing the fiber optic connector horizontally towards the test socket. Because the inner surface of the mounting frame is coated with a silicone-based lubricant, the fiber optic connector can slide smoothly on the surface of the mounting frame. As the push bar continues to push, it will eventually precisely push the fiber optic connector into the test socket. After the fiber optic cable test is completed, the rotating shaft rotates, and the clamping bar located on the surface of the rotating shaft will also move towards the fiber optic cable. Rotating in the direction of rotation, since the two clamping bars are set to rotate in opposite directions, the two clamping bars will hold the optical fiber. At this time, pull the rotating axis away from the placement frame. Since the movable plate and sliding bar slide on the inner wall of the placement frame, and the two clamping bars have already held the optical fiber, the optical fiber will be pulled to move when the rotating axis moves, thereby releasing the fixation between the optical fiber connector and the contact in the test socket, allowing the optical fiber connector to slide in the slot in the test socket. Then, by pulling the optical fiber, the tested optical fiber can be easily pulled out. By pushing the linear movement of the bar, the entire process of advancing, limiting, connecting to the test socket, and pulling out of the optical fiber connector is completed simultaneously.

[0008] Preferably, the transmission structure includes a rotating rod that rotates on the inner wall of the limiting groove. A spiral groove is formed on the surface of the rotating rod, and a small rod is rotatably arranged inside the push bar. The small rod slides on the inner wall of the spiral groove. A transfer rod is slidably connected inside the rotating rod. One end of the transfer rod is connected to a drive column. The surface of the drive column is provided with several movable tooth blocks. A connecting ring is rotatably connected to the end of the drive column, and the other end of the connecting ring is rotatably connected to the end of the rotating shaft. The surface of the rotating shaft is provided with several fixed tooth blocks, and the fixed tooth blocks mesh with the movable tooth blocks during operation.

[0009] One end of the push bar is slidably connected to an inclined push block, and a compression spring is provided between the inclined push block and the connecting plate. One end of the rotating shaft is provided with a limiting circular plate, and the limiting circular plate is in contact with the outer wall of the placement frame.

[0010] With the above setup, during fiber optic cable testing, the push bar moves, and the inclined surface of the inclined push block abuts against the side wall of the placement frame. The inclined push block will adaptively adjust its position, moving towards the connecting plate. After the fiber optic cable test is completed, the push bar is pulled back to its initial position. Because the inside of the push bar slides on the surface of the rotating rod, and the surface of the rotating rod has a spiral groove, and the push bar has a rotatable small rod inside, which slides on the inner wall of the spiral groove, and the push bar is restricted to sliding only inside the placement frame, the rotating rod will be driven to rotate. During the push and reset, the movement trajectory of the push bar will not leave the spiral groove. Furthermore, during the rotation of the rotating rod, the transfer rod inside the rotating rod will drive the drive column to rotate, and the movable toothed block on the surface of the drive column will engage with the fixed toothed block on the surface of the rotating shaft. The two clamping bars engage, causing the rotating shaft to rotate and thus clamping the fiber optic cable. The inclined push block is also moved. When the inclined push block is no longer in contact with the side wall of the placement frame, the compression spring will release its elasticity, thus pushing the inclined push block back to its reset position. At this time, the push plate is pulled away from the fiber optic connector again. The plane of the inclined push block will then contact the plane of the drive column, thus pushing the drive column to move. Since the drive column and the rotating shaft are connected by a connecting ring, and the transfer rod at one end of the drive column slides inside the rotating rod, and the sliding strip at one end of the rotating shaft slides inside the placement frame, and the transfer rod does not disengage from the rotating rod when sliding, and the sliding strip does not disengage from the placement frame when sliding, the drive column will drive the rotating shaft to move together. Since the two clamping bars have now clamped the fiber optic cable, the insertion and removal of the cable can be performed by the reciprocating push bar.

[0011] Preferably, a push plate is slidably connected to the side wall of the adjusting frame, a connecting plate is connected to one end of the push plate, and the connecting plate is connected to the push bar. A planar spiral spring is provided at one end of the movable plate near the rotating shaft, and one end of the planar spiral spring is connected to the rotating shaft. A plurality of auxiliary pads are provided on the arc-shaped surface of the clamping bar.

[0012] With the above setup, when testing the fiber optic cable, the fiber optic connector is placed inside the placement frame, and then the push plate is pushed. The push plate will drive the push bar to move. During the movement of the push plate, the push plate will drive the inclined push block to move through the connecting plate. When clamping the fiber optic cable, the auxiliary pad protects the outer sheath of the fiber optic cable and increases the friction between the clamping bar and the fiber optic cable. The planar spiral spring will also release its elasticity, thereby stabilizing the rotating shaft.

[0013] Preferably, the surface of the drive column is provided with a plurality of adjustment grooves, the interior of the adjustment grooves is provided with an adjustment shaft, and the movable tooth block is rotatably connected to the surface of the adjustment shaft;

[0014] When clamping the optical fiber, the movable tooth block is perpendicular to the adjustment groove and achieves a limit position. When releasing the optical fiber, the movable tooth block rotates without driving the fixed tooth block.

[0015] With the above setup, when the fiber optic connector is pushed into the test socket, the push bar will drive the rotating rod to rotate. However, no clamping bar is needed at this time. When the drive column rotates, although the movable tooth block can contact the fixed tooth block, the movable tooth block rotates on the surface of the adjustment shaft and has no abutting force. Therefore, the movable tooth block will rotate around the adjustment shaft into the adjustment groove, thus not driving the rotating shaft to rotate. When the fiber optic connector needs to be pulled out of the test socket, the drive column will reverse. When the movable tooth block contacts the fixed tooth block, the surface of the movable tooth block abuts against the inner wall of the adjustment groove. At this time, the movable tooth block will not rotate around the adjustment shaft, thus driving the rotating shaft to rotate, ultimately achieving the clamping and fixing of the fiber optic cable.

[0016] Preferably, a torsion spring is fitted onto the surface of the adjusting shaft, and the torsion spring is connected to the movable tooth block.

[0017] With the above settings, the torsion spring releases its elastic force initially, causing the movable tooth block to quickly reset, thus preventing the movable tooth block from not engaging in time and causing the rotating shaft to not rotate immediately.

[0018] Preferably, a set of auxiliary rollers is rotatably connected to the end of the placement frame away from the clamping bar.

[0019] With the above settings, if the fiber optic connector is slightly tilted, it will contact the arc surface of the auxiliary roller, thereby flattening the tilted fiber optic connector and making the fiber optic connector and the test socket at the same level.

[0020] Preferably, each of the auxiliary rollers is provided with a synchronous wheel at its end, and a synchronous belt is engaged on the surface of the synchronous wheel. A connecting gear is provided at one end of the auxiliary roller near the clamping bar, and a fixed rack is provided at the upper end of the connecting plate. During the process of the push bar pushing the fiber optic connector toward the test socket, the fixed rack engages with the connecting gear.

[0021] With the above settings, when the push plate drives the connecting plate to move, the fixed rack on the surface of the connecting plate will mesh with the connecting gear during the movement, thereby causing the connecting gear to drive the auxiliary roller to rotate, thus assisting the sliding of the fiber optic connector. Since each auxiliary roller is connected by a synchronous belt, the auxiliary rollers will rotate synchronously at this time.

[0022] Preferably, the upper end of the fixed plate is symmetrically provided with an extension plate, both ends of the adjusting frame are provided with a rotating shaft, the surface of the rotating shaft is rotatably connected with a connecting arm, and the other end of the connecting arm is rotatably connected to the extension plate, and the adjusting frame is located at the upper end of the extension plate.

[0023] With the above settings, when using this tester, rotating the adjustment frame will cause the adjustment frame to rotate around the connection point between the connecting arm and the extension plate, as the rotation axis of the side wall of the adjustment frame rotates inside the connecting arm and the extension plate. The rotation axis will ensure that the adjustment frame remains horizontal, and the placement frame will eventually be adjusted to be aligned with the test socket.

[0024] Preferably, the test module has a snap-fit ​​hole near the non-working area of ​​the test socket, and the side wall of the adjustment frame has a snap-fit ​​ball, which snaps into the inner wall of the snap-fit ​​hole when in operation.

[0025] With the above settings, by setting the snap-fit ​​ball and snap-fit ​​hole, when adjusting the position of the placement frame and the adjustment frame, the snap-fit ​​ball at the end of the adjustment frame can be snapped into the snap-fit ​​hole, so that the adjustment frame is fixed.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. When testing a large number of fiber optic cables, this tester, when pushed by the operator, causes the push plate to move along with the connected push bar. During this movement, the front end of the push bar abuts against the rear end of the fiber optic connector placed inside the placement frame. As the push plate continues to push, the push bar provides a horizontal thrust to the fiber optic connector, causing it to move horizontally towards the test socket within the placement frame. This achieves the transfer of the fiber optic connector from its initial placement position to the test position. During this transfer, the placement frame provides a track for the fiber optic connector, initially limiting its movement. Simultaneously, if the fiber optic connector slightly tilts upwards while being pushed by the push bar, it will contact the arc surface of the auxiliary roller. The auxiliary roller rotates under the action of the fixed rack and connecting gear on the connecting plate surface, flattening the tilted fiber optic connector and ensuring that the fiber optic connector and the test socket are at the same horizontal level, further ensuring accurate insertion. Finally, through the linear movement of the push plate, the entire process of fiber optic connector advancement, limiting, test socket docking, and removal is completed simultaneously, improving the positioning accuracy during insertion, greatly shortening the testing cycle, and increasing testing efficiency.

[0028] 2. When the fiber optic connector is pulled out, the two clamping bars rotate in opposite directions, mechanically squeezing and fixing the fiber optic cable. The clamping force is evenly distributed, avoiding local stress that could cause the fiber optic cable to bend or break. Attached Figure Description

[0029] Figure 1 This is a perspective view of the present utility model;

[0030] Figure 2 This is a diagram showing the positions of the adjustment frame and the placement frame of this utility model;

[0031] Figure 3 This is a diagram showing the positions of the snap-fit ​​hole and the snap-fit ​​ball in this utility model.

[0032] Figure 4 This is a diagram showing the positions of the placement frame and clamping strips of this utility model;

[0033] Figure 5 This is a connection diagram of the push bar and the rotating rod of this utility model.

[0034] Figure 6 This is a diagram showing the connection between the push plate and the fixed rack of this utility model.

[0035] Figure 7 for Figure 6 A magnified view of part A.

[0036] Figure 8 This is a diagram showing the connection between the rotating shaft and the clamping bar of this utility model.

[0037] Figure 9 for Figure 8 A magnified view of section B.

[0038] Figure 10 This is a connection diagram of the push bar and the rotating rod of this utility model.

[0039] Figure 11 This is a diagram showing the positions of the transfer rod and the rotating rod of this utility model.

[0040] Figure 12 for Figure 11 A magnified view of a portion of point C.

[0041] Reference numerals: 1. Connecting module; 2. Test module; 21. Test socket; 22. Snap-fit ​​hole; 301. Fixing plate; 302. Adjusting frame; 303. Extension plate; 304. Connecting arm; 305. Rotating shaft; 306. Placement frame; 307. Snap-fit ​​ball; 308. Push plate; 309. Clamping bar; 310. Connecting plate; 311. Auxiliary roller; 312. Rotating rod; 313. Push bar; 314. Spiral groove; 315. Auxiliary pad; 316. Fixing tooth block; 317. Drive column 318. Connecting gear; 319. Synchronous belt; 320. Fixed rack; 321. Movable gear block; 322. Planar spiral spring; 323. Movable plate; 324. Sliding bar; 325. Inclined push block; 326. Compression spring; 327. Connecting ring; 328. Rotating shaft; 329. Transfer rod; 330. Adjusting shaft; 331. Torsion spring; 332. Adjusting groove; 333. Synchronous pulley; 334. Limiting circular plate; 335. Limiting groove; 336. Small rod; 4. Fiber optic cable; 41. Fiber optic connector. Detailed Implementation

[0042] The following is in conjunction with the appendix Figures 1-12 This application will be described in further detail.

[0043] This application discloses an optical fiber tester.

[0044] Reference Figures 1 to 3 As shown, an optical fiber tester includes a connection module 1. A fixing plate 301 is fixed to the upper end of the connection module 1 near the test socket 21 by adhesive. An extension plate 303 is symmetrically installed on the top of the fixing plate 301. Rotating shafts 305 are fixedly installed on both ends of an adjusting frame 302. A connecting arm 304 is rotatably connected to the surface of each rotating shaft 305. The other end of the connecting arm 304 is rotatably connected to the extension plate 303. The adjusting frame 302 is located above the extension plate 303. A test module 2 is connected above the connection module 1. A test socket 21 is provided on the surface of the test module 2. A snap-fit ​​hole 22 is provided in the non-working area of ​​the test module 2 located in the test socket 21. A snap-fit ​​ball 307 is fixedly installed on the side wall of the adjusting frame 302. In the working state, the snap-fit ​​ball 307 will snap into the inner wall of the snap-fit ​​hole 22 to achieve a stable connection.

[0045] When using this testing instrument, rotating the adjusting frame 302 causes the rotating shaft 305 on the side wall of the adjusting frame 302 to rotate inside the connecting arm 304. The lower end of the connecting arm 304 rotates inside the extension plate 303, and the connection between the connecting arm 304 and the rotating shaft 305 has a damping effect to suppress the free swinging of the adjusting frame 302.

[0046] Therefore, at this time, the adjusting frame 302 will rotate around the connection between the connecting arm 304 and the extension plate 303, and the rotating shaft 305 will ensure that the adjusting frame 302 remains horizontal. Finally, the placement frame 306 will be adjusted to be aligned with the test socket 21. When the tester is not in use, the placement frame 306 can be rotated to be not aligned with the test socket 21, which makes it easier to maintain and repair the end of the test socket 21 and the adjusting frame 302. When adjusting the position of the placement frame 306 and the adjusting frame 302, the translation characteristics of the parallelogram mechanism can be used to lock the snap ball 307 at the end of the adjusting frame 302 into the snap hole 22, thus fixing the adjusting frame 302.

[0047] Reference Figures 1 to 2 , Figures 4 to 6 and Figure 10 As shown, a placement frame 306 is integrally formed at the center of the adjusting frame 302. Limiting grooves 335 are respectively formed on both sides of the inner wall of the placement frame 306. A pusher bar 313 is slidably disposed inside the limiting grooves 335. This pusher bar 313 can push the fiber optic connector 41. The upper and lower ends of the pusher bar 313 are restricted by the limiting grooves 335 and can only slide along the limiting grooves 335. The specific installation position of the pusher bar 313 (e.g., ...) Figure 5 As shown, a rotating rod 312 is rotatably connected inside the limiting groove 335. The pushing bar 313 slides on the surface of the rotating rod 312. One end of the rotating rod 312 extends to the outside of the placement frame 306. A large-angle spiral groove 314 is opened on the surface of the rotating rod 312. A small rod 336 is rotatably installed on the upper end of the inner wall of the pushing bar 313. The small rod 336 can slide in the spiral groove 314 and will not detach from the spiral groove 314 during operation. When the pushing bar 313 drives the small rod 336 to slide in the spiral groove 314, the pushing bar 313 will drive the rotating rod 312 to rotate. A slidable push plate 308 is installed on the side wall of the adjusting frame 302. One end of the push plate 308 is fixedly connected to the connecting plate 310, and the connecting plate 310 is fixedly connected to the pushing bar 313.

[0048] Inside the placement frame 306, at the end furthest from the clamping bar 309, is a set of auxiliary rollers 311. Each set of auxiliary rollers 311 consists of two rollers. The ends of the two auxiliary rollers 311 are equipped with synchronous pulleys 333, and a synchronous belt 319 meshes between the two synchronous pulleys 333, enabling the two auxiliary rollers 311 to rotate synchronously. A connecting gear 318 is also fixedly mounted at one end of the auxiliary roller 311 closest to the clamping bar 309. A fixed rack 320 is fixedly mounted at the upper end of the connecting plate 310. During the process of the push bar 313 pushing the fiber optic connector 41 toward the test socket 21, the fixed rack 320 will mesh with the connecting gear 318.

[0049] Connect the fiber optic cable 4 to the fiber optic connector 41, and place the fiber optic connector 41 inside the placement frame 306. Then, push the push plate 308, which will move the push bar 313 along with it. At this time, the push bar 313 will slide along the surface of the rotating rod 312 and be confined within the limiting groove 335. The push bar 313 will contact and press against the rear end of the fiber optic connector 41, pushing the fiber optic connector 41 to move horizontally towards the test socket 21. As the push bar 313 continues to push, the fiber optic connector 41 can be accurately inserted into the test socket 21, and the fiber optic connector 41 can be engaged with the contacts in the test socket 21. This minimizes the friction between the fiber optic connector 41 and the test socket 21. Furthermore, as the push bar 313 moves the fiber optic connector 41... If the fiber optic connector 41 is slightly tilted, it will contact the arc surface of the auxiliary roller 311, thus flattening the tilted fiber optic connector 41 and making it level with the test socket 21, which facilitates subsequent insertion. To protect the fiber optic connector 41 and reduce wear between the auxiliary roller 311 and the fiber optic connector 41, the outer surface of the auxiliary roller 311 is made of soft rubber. When the push plate 308 moves the connecting plate 310, the connecting gear 318 will drive the auxiliary roller 311 to rotate, thereby assisting the sliding of the fiber optic connector 41. Since each auxiliary roller 311 is connected by a synchronous belt 319 on the surface of the synchronous wheel 333, the auxiliary rollers 311 will rotate synchronously to assist the insertion of the fiber optic connector 41.

[0050] Reference Figures 4 to 9 , Figures 11 to 12 As shown, two sets of sliding strips 324 are slidably connected to the inner walls on both sides of one end of the surface of the frame 306. Each set of sliding strips 324 consists of four strips arranged in a rectangle. One end of each set of sliding strips 324 is fixedly connected to a movable plate 323. A rotating shaft 328 is movably inserted inside the movable plate 323. A clamping strip 309 is fixedly provided on the end of the rotating shaft 328 away from the movable plate 323. When clamping the optical fiber 4, the two clamping strips 309 move towards each other, forming an elliptical space for clamping the optical fiber. Both clamping strips 309 are arc-shaped. The movable plate 323 is close to the rotating shaft 323. A planar spiral spring 322 is installed at one end of the rotating shaft 328, and a slot is opened on the outer surface of the rotating shaft 328 near the planar spiral spring 322. The inner end of the planar spiral spring 322 is engaged in the slot on the outer surface of the rotating shaft 328, and the outer end of the planar spiral spring 322 is engaged on the movable plate 323. Several auxiliary pads 315 are distributed on the arc-shaped surface of the clamping bar 309. In the clamping of the optical fiber 4, in order to protect the optical fiber 4, the clamping bar 309 and the auxiliary pads 315 are made of fluororubber, which can ensure that sufficient static friction is generated when clamping the optical fiber 4, and will not cause permanent deformation to the coating of the optical fiber 4.

[0051] A transfer rod 329 is slidably connected inside the rotating rod 312. One end of the transfer rod 329 is fixedly connected to a drive column 317. Several adjustment grooves 332 are formed on the surface of the drive column 317. An adjustment shaft 330 is fixed in each adjustment groove 332. A movable toothed block 321 is rotatably connected to the surface of the adjustment shaft 330. A torsion spring 331 is sleeved on the adjustment shaft 330. One end of the torsion spring 331 is fixedly connected to the movable toothed block 321, and the other end of the torsion spring 331 is connected to the adjustment groove 332. A connecting ring 327 is rotatably connected to the end of the drive column 317. The other end of the connecting ring 327 is rotatably connected to the end of the rotating shaft 328. The connecting ring 327 is restricted by the ends of the drive column 317 and the rotating shaft 328 and cannot slide horizontally. Several fixed toothed blocks 327 are formed on the surface of the rotating shaft 328. 16. During operation, the fixed tooth block 316 and the movable tooth block 321 mesh with each other to transmit power. One end of the connecting plate 310 is slidably connected to the inclined push block 325. A compression spring 326 is provided between the inclined push block 325 and the connecting plate 310, and the compression spring 326 is fixedly connected to the inclined push block 325. Since the rod at the end of the inclined push block 325 passes through the connecting plate 310, and the end of the rod passing through the connecting plate 310 is provided with a limiting plate with a diameter larger than the rod, the displacement path of the inclined push block 325 is restricted inside the connecting plate 310. The compression spring 326 is sleeved on the surface of the rod. One end of the rotating shaft 328 is also fixedly provided with a limiting circular plate 334. The limiting circular plate 334 contacts the outer wall of the placement frame 306 and plays a limiting role to prevent the rotating shaft 328 from axially displacing during rotation.

[0052] After the test of fiber optic cable 4 is completed, the push bar 313 is pulled back, and the rotating rod 312 rotates accordingly. The movement trajectory of the push bar 313 during push and reset is within the spiral groove 314. When the rotating rod 312 rotates, the internal transfer rod 329 drives the drive column 317 to rotate, the movable tooth block 321 meshes with the fixed tooth block 316, and the surface of the movable tooth block 321 abuts against the inner wall of the adjustment groove 332, no longer rotating around the adjustment shaft 330, thereby driving the rotating shaft 328 to rotate, so that the clamping bar 309 clamps the fiber optic cable 4. When the clamping bar 309 clamps the fiber optic cable 4, and when the fiber optic connector 41 is pushed into the test socket 21, at this time when the drive column 317 rotates, although the movable tooth block 321 can mesh with the fixed tooth block 316... The movable tooth block 321 rotates on the surface of the adjusting shaft 330, and since the movable tooth block 321 has no contact force at this time, the movable tooth block 321 will rotate around the adjusting shaft 330 as the axis, thus not driving the rotating shaft 328 to rotate. When clamping, the auxiliary pad 315 can protect the outer sheath of the optical fiber 4 and increase the friction between the clamping bar 309 and the optical fiber 4. In the initial state, since the inner end of the planar spiral spring 322 is connected to the outer surface of the rotating shaft 328 and the outer end is connected to the movable plate 323, the planar spiral spring 322 will release the elastic force, so that the rotating shaft 328 is not affected by gravity and remains stable, so that the movable tooth block 321 and the fixed tooth block 316 can mesh.

[0053] Furthermore, when the fiber optic connector 41 is pushed into the test socket 21, the inclined push block 325 will abut against the side wall of the placement frame 306 during the process of being driven. Since the inclined push block 325 slides inside the connecting plate 310, it will adaptively adjust its position and move towards the connecting plate 310, ultimately not affecting the normal sliding of the push plate 308. When the push bar 313 is pulled back, the inclined push block 325 is also driven to move. When the inclined push block 325 is no longer in contact with the side wall of the placement frame 306, the compression spring 326 releases its elasticity to reset the inclined push block 325, and the push plate 308 is pulled back again. When the optical fiber connector 41 is away from the plane of the inclined push block 325 contacts the plane of the drive column 317, it pushes the drive column 317 to move. Since the drive column 317 is connected to the rotating shaft 328 through the connecting ring 327, and the transfer rod 329 is inside the rotating rod 312, and the sliding bar 324 slides in the placement frame 306 without disengaging, the drive column 317 drives the rotating shaft 328 to move together. Since the optical fiber 4 has been clamped, the fixation between the optical fiber connector 41 and the contact in the test socket 21 can be released, so that the optical fiber connector 41 can slide in the slot in the test socket 21. Then, by pulling the optical fiber 4, the tested optical fiber 4 can be easily pulled out.

[0054] In this device, the planar spiral spring 322 is calculated using the relevant mechanical formula: T=kθ, where T is the torque on the spiral spring, in N⋅m; and k is the torsional stiffness coefficient of the spiral spring.

[0055] The helix angle α of the spiral groove is greater than the friction angle ρ, and the friction coefficient μ≈0.1, corresponding to a friction angle of approximately 5.7∘;

[0056] The rotating rod 312 and the drive column 317 are made of Cr12MoV mold steel and the surface is treated with diamond-like carbon (DLC) coating.

[0057] The test module uses the existing FLUKE DTX series cable certification analyzer, which is equipped with a dedicated DTX-SFM2 single-mode fiber optic module. This module is connected to the host via a back-mounted slot and supports single-mode fiber optic testing. The unit connecting the module is an HDMI signal extender.

[0058] The implementation principle of the fiber optic tester in this application embodiment is as follows: When testing the fiber optic cable 4, firstly, install the fiber optic connector 41 at the end of the fiber optic cable 4. Then, rotate the adjusting frame 302 so that the locking ball 307 at the end of the adjusting frame 302 will lock into the locking hole 22, thus fixing the adjusting frame 302. Then, place the fiber optic connector 41 inside the placement frame 306. Then, push the push plate 308. The push plate 308 will drive the push bar 313 to abut against the rear end of the fiber optic connector 41, thereby pushing the fiber optic cable. Connector 41 moves horizontally toward test socket 21, and during the movement of push plate 308, push plate 308 will drive inclined push block 325 to move through connecting plate 310. During the movement of inclined push block 325, the inclined surface of inclined push block 325 will abut against the side wall of placement frame 306. Since inclined push block 325 slides inside connecting plate 310, inclined push block 325 will adaptively adjust its position and move toward connecting plate 310, so as not to affect the normal sliding of push plate 308.

[0059] When the push bar 313 moves the fiber optic connector 41, if the fiber optic connector 41 is slightly tilted, it will contact the arc surface of the auxiliary roller 311, thus flattening the tilted fiber optic connector 41 and making the fiber optic connector 41 and the test socket 21 at the same level. As the push plate 308 pushes continuously, the transfer and limiting of the fiber optic connector 41 are completed. Finally, the fiber optic connector 41 will be accurately pushed into the test socket 21, reducing the friction between the fiber optic connector 41 and the test socket 21 to a minimum. At this time, the fiber optic cable 4 can be tested. This action completes the entire process of pushing, limiting, connecting and pulling out the fiber optic connector 41, improving the positioning accuracy when inserting the cable, greatly shortening the test cycle and improving the testing efficiency.

[0060] After completing the test of fiber optic cable 4, the push plate 308 is pulled back in the initial direction. At this time, the push bar 313 will drive the rotating rod 312 to rotate. During the push and reset, the movement trajectory of the push bar 313 will not leave the spiral groove 314. During the rotation of the rotating rod 312, the transfer rod 329 located inside the rotating rod 312 will drive the drive column 317 to rotate. The movable tooth block 321 on the surface of the drive column 317 will mesh with the fixed tooth block 316 on the surface of the rotating shaft 328, thereby driving the rotating shaft 328 to rotate. At this time, the clamping bar 309 on the surface of the rotating shaft 328 also clamps the optical fiber 4. During the reset process of the push plate 308, the inclined push block 325 is also driven to move. When the inclined push block 325 is not in contact with the side wall of the placement frame 306, the compression spring 326 will release the elastic force, thereby pushing the inclined push block 325 to the reset. At this time, the push plate 308 is pulled away from the optical fiber connector 41 again. At this time, the inclined push block 325 will push the drive column 317 to move. Since the drive column 317 is connected to the rotating shaft 328 through the connecting ring 327;

[0061] Furthermore, the transfer rod 329 at one end of the drive column 317 slides inside the rotating rod 312, and the sliding strip 324 at one end of the rotating shaft 328 slides inside the placement frame 306. The transfer rod 329 will not disengage from the rotating rod 312 when sliding, and the sliding strip 324 will not disengage from the placement frame 306 when sliding. Therefore, the drive column 317 will drive the rotating shaft 328 to move together. Since the two clamping strips 309 have clamped the optical fiber 4 at this time, the rotating shaft 328 will pull the optical fiber 4 to move when moving, thereby releasing the fixation between the optical fiber connector 41 and the contact in the test socket 21, so that the optical fiber connector 41 can slide in the slot in the test socket 21. Then, by pulling the optical fiber 4, the tested optical fiber 4 can be easily pulled out. When the optical fiber connector 41 is pulled out, the two clamping strips 309 rotate in opposite directions, and fix the optical fiber 4 by mechanical compression. The clamping force is evenly distributed, avoiding local stress that could cause the optical fiber to bend or break.

[0062] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An optical fiber tester, characterized in that: The system includes a connection module (1), with a test module (2) connected to its upper end. The test module (2) has a test socket (21) on its surface. A fixing plate (301) is located at the upper end of the connection module (1) near the test socket (21). An adjustment frame (302) is located at the upper end of the fixing plate (301). A placement frame (306) is located inside the adjustment frame (302). Limiting grooves (335) are formed on both sides of the inner wall of the placement frame (306). The inner wall of the frame (306) is provided with a push bar (313) for pushing the fiber optic connector (41). Two sets of sliding bars (324) are slidably connected to the inner walls on both sides of the surface of the frame (306). A movable plate (323) is fixed at one end of each set of sliding bars (324). A rotating shaft (328) is rotatably connected inside the movable plate (323). A clamping bar (309) for holding the fiber optic cable (4) is provided on the surface of the rotating shaft (328). The push bar (313) drives the rotating shaft (328) to rotate through the transmission structure. The transmission structure includes a rotating rod (312), which rotates on the inner wall of the limiting groove (335). A spiral groove (314) is provided on the surface of the rotating rod (312), and a small rod (336) is rotatably provided inside the push bar (313). The small rod (336) slides on the inner wall of the spiral groove (314). A transfer rod (329) is slidably connected inside the rotating rod (312). One end of the transfer rod (329) is connected to a drive column (317). The surface of the drive column (317) is provided with several movable tooth blocks (321). A connecting ring (327) is rotatably connected to the end of the drive column (317), and the other end of the connecting ring (327) is rotatably connected to the end of the rotating shaft (328). The surface of the rotating shaft (328) is provided with several fixed tooth blocks (316), and the fixed tooth blocks (316) and the movable tooth blocks (321) mesh with each other during operation. One end of the push bar (313) is slidably connected to an inclined push block (325), and a compression spring (326) is provided between the inclined push block (325) and the connecting plate (310). One end of the rotating shaft (328) is provided with a limiting circular plate (334), and the limiting circular plate (334) is in contact with the outer wall of the placement frame (306). The side wall of the adjusting frame (302) is slidably connected to a push plate (308), one end of the push plate (308) is connected to a connecting plate (310), and the connecting plate (310) is connected to a push bar (313). The movable plate (323) is provided with a planar spiral spring (322) at one end near the rotating shaft (328), and one end of the planar spiral spring (322) is connected to the rotating shaft (328). The arc surface of the clamping bar (309) is provided with several auxiliary pads (315). The end of the placement frame (306) away from the clamping bar (309) is rotatably connected to a set of auxiliary rollers (311).

2. The fiber optic tester according to claim 1, characterized in that: The surface of the drive column (317) is provided with a plurality of adjustment grooves (332), and the interior of the adjustment grooves (332) is provided with an adjustment shaft (330), and the movable tooth block (321) is rotatably connected to the surface of the adjustment shaft (330); When clamping the optical fiber (4), the movable tooth block (321) is perpendicular to the adjustment groove (332) and achieves a limit. When the optical fiber (4) is released from clamping, the movable tooth block (321) rotates without driving the fixed tooth block (316).

3. The fiber optic tester according to claim 2, characterized in that: The surface of the adjusting shaft (330) is fitted with a torsion spring (331), and the torsion spring (331) is connected to the movable tooth block (321).

4. The fiber optic tester according to claim 1, characterized in that: Each of the auxiliary rollers (311) is provided with a synchronous wheel (333) at its end. The surface of the synchronous wheel (333) is engaged with a synchronous belt (319). One end of the auxiliary roller (311) near the clamping bar (309) is provided with a connecting gear (318). The upper end of the connecting plate (310) is provided with a fixed rack (320). During the process of the push bar (313) pushing the fiber optic connector (41) toward the test socket (21), the fixed rack (320) engages with the connecting gear (318).

5. The fiber optic tester according to claim 1, characterized in that: The upper end of the fixed plate (301) is symmetrically provided with an extension plate (303), and both ends of the adjusting frame (302) are provided with a rotating shaft (305). The surface of the rotating shaft (305) is rotatably connected with a connecting arm (304), and the other end of the connecting arm (304) is rotatably connected to the extension plate (303). The adjusting frame (302) is located at the upper end of the extension plate (303).

6. The fiber optic tester according to claim 5, characterized in that: The test module (2) has a snap-fit ​​hole (22) in the non-working area near the test socket (21), and the side wall of the adjustment frame (302) is provided with a snap-fit ​​ball (307), and the snap-fit ​​ball (307) snaps into the inner wall of the snap-fit ​​hole (22) when working.

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