Optical fiber testing device

Abstract

The invention discloses an optical fiber testing device, and relates to the technical field of optical fiber testing, which comprises an optical fiber testing equipment main body provided with a testing hole and used for inserting a connecting plug of an optical fiber main body into the testing hole, and also comprises a testing head which is provided with at least two testing parts, vertically extends and is symmetrically arranged at two sides of the optical fiber main body; the fixing ring is rotatably arranged on the optical fiber testing equipment main body by taking an axis which is vertical to the ring surface of the fixing ring and penetrates through the circle center of the fixing ring as a rotating shaft, and the testing head is arranged on the fixing ring; according to the invention, the central point of the fixing ring rotates to drive the test parts at the two sides of the optical fiber main body plug to swing and change the swing track, so that the optical fiber main body is effectively pushed to swing left and right, the swing amplitude of the optical fiber main body is tested, and the clamping effect of the lock catch can be detected; and secondly, the swinging of the test part can generate a thrust away from the test hole, so that the stability of the optical fiber main body under daily collision can be tested, and whether the optical fiber main body is easy to loosen and fall off can be tested.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber testing, in particular to an optical fiber testing device. Background Art

[0002] Optical fiber is a long, thin optical fiber made of glass or plastic that is used to transmit light signals. It is a transmission medium for transmitting light waves, similar to cables used to transmit electrical signals. Optical fiber has the advantages of high bandwidth, low loss, and resistance to electromagnetic interference. Therefore, it is widely used in communications, networking, medical care, industry and other fields.

[0003] In actual use environments, optical fibers may be affected by various external forces, such as slight vibrations of the equipment, people walking nearby and causing the cables to be hit, etc. Therefore, the optical fiber plug is equipped with a lock. When the optical fiber plug is inserted into the test hole of the equipment, there is a corresponding card slot or protrusion structure in the test hole. The lock will be squeezed by the structure of the test hole during the insertion process, and then bounce back and jam the test hole, thereby firmly fixing the optical fiber plug in the test hole;

[0004] If the fiber test hole is loose, the optical signal will be disturbed during transmission; for example, in high-speed fiber optic communication networks, such as fiber optic links inside data centers, the transmission rate may reach several gigabytes per second or even higher. A loose test hole may cause a momentary interruption of the optical signal, resulting in the loss of data being transmitted, which seriously affects the continuity of network communication. Therefore, it is necessary to test whether the fiber optic plug is loose after being inserted into the device, so as to know in advance whether the plug shows signs of wear or whether the test hole is deformed, so as to promptly discover factors that may cause looseness, such as bent pins and damaged locks. Summary of the invention

[0005] The object of the present invention is to provide an optical fiber testing device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides an optical fiber testing device, comprising an optical fiber testing device body, on which a testing hole is provided, for inserting a plug connector of the optical fiber body into the testing hole, and also comprising a testing head, which has at least two testing parts, extending vertically and symmetrically arranged on both sides of the optical fiber body;

[0007] The fixed ring is rotatably arranged on the main body of the optical fiber testing equipment, with the axis perpendicular to the ring surface of the fixed ring and passing through the center of the fixed ring as the rotation axis. The test head is arranged on the fixed ring, and the perpendicular bisectors of the two test parts are not arranged colinearly with the rotation axis, so that when the fixed ring rotates clockwise or counterclockwise, the two test parts alternately abut against the two sides of the optical fiber main body.

[0008] Furthermore, an annular groove is provided on the fixing ring, and a gear ring is provided in the annular groove;

[0009] A gear meshing with the gear ring is rotatably connected to the main body of the optical fiber testing device; a driving member is also arranged on the main body of the optical fiber testing device for driving the gear to rotate so as to drive the fixed ring to rotate through the gear ring.

[0010] Furthermore, it also includes a lifting mechanism, which is arranged on the main body of the optical fiber testing equipment, and the driving part of the lifting mechanism is connected to the fixing ring, and is used to raise or lower the height of the fixing ring;

[0011] The intersection of the testing portion and the vertical extensions of the side walls on both sides of the optical fiber body is on the same horizontal plane.

[0012] Furthermore, it also includes a connecting piece, one end of which is connected to the main body of the optical fiber testing equipment, and the other end of which is symmetrically forked and extends up and down and is bent close to each other to form a limit bayonet for limiting the fixing ring.

[0013] Furthermore, the main body of the optical fiber testing device is provided with a receiving groove, and the inner wall of the receiving groove is provided with a vertically extending strip groove;

[0014] The lifting mechanism also includes a connecting block that can reciprocate up and down, the connecting piece is provided with a transversely arranged sliding groove, the connecting block is connected to a rotating rod extending into the sliding groove, there is a gap between the inner wall of the rotating rod close to the limit bayonet and the rotating rod, and the outer wall of the rotating rod abuts against the inner wall of the sliding groove;

[0015] The inner walls of both sides of the receiving groove are symmetrically provided with sliding grooves;

[0016] A slider is slidably connected in the slide groove, one end of the slider extends into the interior of the accommodating groove, and a connecting plate is connected between the end of the slider away from the slide groove and the connecting piece.

[0017] Furthermore, the lifting mechanism also includes a screw rod, which is arranged along the axial direction of the strip groove, the top end of the screw rod is rotatably connected to the inner top wall of the strip groove, and the connecting block is threadedly connected to the screw rod and slidably connected to the strip groove.

[0018] Furthermore, there is a gap between the bottom end of the screw rod and the inner bottom wall of the strip groove, and a servo motor is arranged in the gap. The servo motor is installed on the inner wall of the strip groove, and the driving end of the servo motor is connected to the bottom end of the screw rod.

[0019] Furthermore, the connecting member and a partial area of ​​the fixing ring away from the testing part are located in the accommodating groove, and the connecting member corresponds horizontally to the gap between the two testing parts.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, the center point of the fixed ring is rotated to drive the test parts located on both sides of the optical fiber main body plug to swing, change the swing trajectory, and effectively push the optical fiber main body to swing left and right, so as to test the swing amplitude of the optical fiber main body and detect the clamping effect of its lock; secondly, the swing of the test part will generate a thrust away from the test hole, which can test the stability of the optical fiber main body under daily collision and test whether it is easy to loosen or fall off.

[0022] 2. In the present invention, the lifting mechanism enables the fixing ring and the test part to move up and down, and then cooperates with the slider and the slide groove to enable the test part to swing upward after moving up and swing downward after moving down, so as to test its up and down looseness and swing amplitude. When the test part moves up or down, the inclined rod of the test part pulls the optical fiber to tilt, and applies friction force away from the test hole by means of an arc trajectory, so as to test the stability of the optical fiber, prevent it from loosening and falling out of the test hole, and ensure the test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the connection structure between the optical fiber main body and the test part in the present invention;

[0025] Figure 3 It is a schematic diagram of the interior of the receiving tank in the present invention;

[0026] Figure 4 It is a schematic diagram of the connection structure between the slide groove and the slider in the present invention;

[0027] Figure 5 It is a schematic diagram of the connection structure between the connecting piece and the limiting bayonet in the present invention;

[0028] Figure 6 It is a schematic diagram of the connection structure between the gear ring and the gear in the present invention;

[0029] Figure 7 It is a schematic diagram of the connection structure between the gear and the motor in the present invention;

[0030] Figure 8 It is a schematic diagram of the connection structure between the connecting member and the rotating rod in the present invention;

[0031] Fig. 9 It is a schematic diagram of the connection structure between the servo motor and the lead screw in the present invention;

[0032] Fig.10 It is a schematic diagram of the connection structure between the test part and the fixing ring in the present invention;

[0033] Fig.11 It is a schematic diagram of the swing effect of the test part in the present invention.

[0034] In the figure: 1. The main body of the optical fiber testing equipment;

[0035] 2. Fiber optic body; 3. Test part; 4. Accommodating groove; 5. Fixing ring; 6. Gear ring; 7. Servo motor; 8. Screw; 9. Strip groove; 10. Slide groove; 11. Connecting plate; 12. Sliding block; 13. Connecting piece; 14. Connecting block; 15. Support rod; 16. Gear; 17. Motor; 18. Accommodating cavity; 19. Limiting bayonet; 20. Turning rod; 21. Sliding groove. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The present invention provides a technical solution:

[0038] See also Figure 1-Figure 11 As shown, an optical fiber testing device includes an optical fiber testing device body 1, which is provided with a test hole, and a plug connector for an optical fiber body 2 is inserted into the test hole, and also includes:

[0039] The test head has at least two test parts 3 extending vertically and symmetrically arranged on both sides of the optical fiber body 2;

[0040] The fixing ring 5 is rotatably arranged on the main body 1 of the optical fiber testing device, with the axis perpendicular to the ring surface of the fixing ring 5 and passing through the center of the fixing ring 5 as the rotation axis. The test head is arranged on the fixing ring 5, and the perpendicular bisectors of the two test parts 3 are not arranged colinearly with the rotation axis, so that when the fixing ring 5 rotates clockwise or counterclockwise, the two test parts 3 alternately abut against the two sides of the optical fiber main body 2.

[0041] First, Figure 2 From the perspective of the optical fiber body 2, the plug of the optical fiber body 2 is inserted into the test hole, the two test parts 3 are located at the plug part of the optical fiber body 2, and are respectively located on the left and right sides of the optical fiber body 2, and the fixing ring 5 fixes the two test parts 3 together, so that the two test parts 3 on the left and right sides of the optical fiber body 2 are spaced at the same distance from the optical fiber body 2;

[0042] Then, the fixing ring 5 is moved, and the fixing ring 5 is swung to the left or right based on the center point of the fixing ring 5, so that the two test parts 3 are swung to the left or right together. The specific state after the swing can be Fig.10 Given in;

[0043] by Fig.10From the perspective of the test part 3, when the test part 3 swings to the right, the test part 3 on the left side will push the left side of the optical fiber body 2 to tilt to the right. When the test part 3 swings to the left, the test part 3 on the right side will push the right side of the optical fiber body 2 to tilt to the left. This step is to shake the optical fiber body 2 left and right to test whether the swing amplitude of the optical fiber body 2 is within a reasonable range. If the swing amplitude is too large, in daily life, if the optical fiber body 2 is accidentally touched, the position of the fiber core will be easily offset.

[0044] Since the optical fiber body 2 transmits data through optical signals, the optical signal normally propagates in a straight line along the core. However, if the plug swings and causes the core position to shift, part of the optical signal may be scattered into the cladding and cannot be effectively transmitted to the receiving end, resulting in a decrease in signal strength, that is, signal attenuation. Secondly, the test unit 3 pushes the optical fiber body 2 to shake and can also test whether the lock of the optical fiber body 2 can clamp the test hole, so as to avoid the optical fiber body 2 being unable to fix the lock on the optical fiber body 2 in the test hole after the optical fiber body 2 is inserted into the device, thereby easily causing the optical fiber body 2 to loosen and fall out in collisions in daily life.

[0045] Depend on Fig.10 It can be seen from the figure that the trajectory of the test part 3 after swinging is arc-shaped. Fig.10 The viewing angle in the figure is divided into four directions: up, down, left, and right. After the test part 3 swings to the right, the left test part 3 moves to the lower right, while the right test part 3 moves to the upper left. At this time, the left test part 3 not only generates a lateral thrust on the optical fiber body 2, but also a thrust in the direction away from the test hole. By applying a thrust in the direction away from the test hole to the optical fiber body 2, it can be tested whether the optical fiber body 2 will easily fall off from the test hole without opening the lock buckle.

[0046] Fig.11 The swing amplitude and position of the two test parts 3 are shown. If the test parts 3 are swung based on the center point between the two test parts 3, when the left test part 3 contacts the optical fiber body 2 toward the right rear direction, the right test part 3 will also contact the optical fiber body 2 toward the left front at the same time, thus forming a situation where the two test parts 3 contact the optical fiber body 2 at the same time. The swing directions of the two test parts 3 are opposite, and the optical fiber body 2 cannot be shaken. This is because the two test parts 3 are at the same distance from the swing center point, have the same angular velocity, and move synchronously.

[0047] The fixing ring 5 is rotated based on the center point of the fixing ring 5. After the fixing ring 5 rotates, since the center of rotation is far away from the two test parts 3, if the test parts 3 are swung to the right, the left test part 3 will first contact the left side of the optical fiber body 2, while the right test part 3 will not contact the right side of the optical fiber body 2. On the contrary, if the test parts 3 are swung to the left, the right test part 3 will first contact the right side of the optical fiber body 2, while the left test part 3 will not contact the left side of the optical fiber body 2. In this way, the optical fiber body 2 can be pushed to swing.

[0048] This is because the swinging trajectories of the two test parts 3 change due to the change of the rotation center point. When swinging to the right, the motion path of the left test part 3 is straighter and shorter, and it can contact the optical fiber body 2 faster. The right test part 3 lags behind because its motion trajectory is more curved and its arc length is longer. Similarly, when swinging to the left, the path advantage of the right test part 3 is prominent, and it touches the optical fiber body 2 faster. The left test part 3 lags behind because of its circuitous path. Although the distances from the two test parts 3 to the new center point are the same, due to the different swinging directions, the geometric relationship between their respective motion paths and the optical fiber body 2 changes, resulting in differences in the order of contact.

[0049] Therefore, in this solution, the center point of the fixing ring 5 is taken as the standard, and the fixing ring 5 is rotated to cause the test part 3 to swing, thereby ensuring the effect of the test part 3 pushing the optical fiber body 2, and the test part 3 also has friction when pushing the optical fiber body 2, so that the optical fiber body 2 can be pushed in the direction away from the test hole. The circumference of the fixing ring 5 is set to ensure the distance relationship between the center point of the fixing ring 5 and the test part 3. During the left and right swinging of the test part 3, when one of the test parts 3 contacts the optical fiber body 2, there is a sufficient distance between the other test part 3 and the optical fiber body 2;

[0050] and Fig.11 It can be seen that the edges of the test part 3 on both sides facing the optical fiber body 2 are rounded, and when the test part 3 contacts the optical fiber body 2 after swinging, since the test part 3 is inclined, it is the edge of the test part 3 that contacts the optical fiber body 2, that is, the rounded area of ​​the test part 3, and the test part 3 also contacts the edge of the optical fiber body 2. The rounded design of the test part 3 can increase the contact area between the test part 3 and the optical fiber body 2, thereby expanding the friction area. If the test part 3 is very thin, not only will there be less friction, but the stress will be more concentrated, and the appearance of the optical fiber body 2 may be damaged to a certain extent due to the impact on the optical fiber body 2. Therefore, the rounded corners of the test part 3 can reduce part of the damage caused by the impact.

[0051] See also Figure 4 and Figure 6, an annular groove is provided on the fixing ring 5, a gear ring 6 is provided in the annular groove, the top of the gear ring 6 is fixedly connected to the inner top wall of the annular groove, and the bottom of the gear ring 6 is fixedly connected to the inner bottom wall of the annular groove;

[0052] The optical fiber testing device body 1 is rotatably connected to a gear 16 meshing with the gear ring 6; the optical fiber testing device body 1 is also provided with a driving member for driving the gear 16 to rotate, so as to drive the fixing ring 5 to rotate through the gear ring 6;

[0053] The driving member also includes a support rod 15 vertically arranged in the area surrounded by the fixed ring 5, and one end of the support rod 15 away from the optical fiber testing device body 1 is rotatably connected to the bottom end of the gear 16;

[0054] The support rod 15 defines an accommodating cavity 18 , and a motor 17 is fixedly mounted on the inner wall of the accommodating cavity 18 . The driving end of the motor 17 is fixedly connected to the bottom end of the gear 16 .

[0055] First, Figure 6 It can be seen that the teeth of the gear ring 6 are not blocked by the fixed ring 5; the gear 16 is turned, and when the gear 16 rotates, the gear ring 6 can be driven to move around the gear 16. Since the gear ring 6 and the fixed ring 5 are both annular, the gear ring 6 and the fixed ring 5 will rotate. Fig.10 From the perspective of FIG, the gear 16 rotates left and right, thereby causing the fixing ring 5 to also rotate, so that the test part 3 swings left and right;

[0056] The motor 17 is used to drive the gear 16 to rotate. The speed of the motor 17 can be adjusted through the control system. Its control method is generally closed-loop control, and the rotation angle and speed of the motor 17 are accurately controlled through a feedback device such as an encoder. In the control system of the motor 17, a very low target speed can be set to make the motor 17 run at an extremely low speed. For example, in the slow-speed scenes of some automated equipment, the motor 17 can run at the set extremely low speed, which can achieve the effect of rotating one circle for a long time;

[0057] Therefore, there is no need to worry about the motor 17 rotating too fast, causing the fixing ring 5 to swing too much instantly. The optical fiber testing device body 1 usually has its own control system. The control system of the device has the function of outputting control signals, and these signals can match the control circuit of the motor 17 to control the start and stop of the motor 17.

[0058] The support rod 15 does not rotate, and when the gear 16 rotates, the gear 16 rotates at the top end of the support rod 15 .

[0059] See also Figure 3-Figure 8 , further comprising a lifting mechanism, which is arranged on the optical fiber testing equipment body 1, and the driving part of the lifting mechanism is connected to the fixing ring 5, and is used to raise or lower the height of the fixing ring 5;

[0060] The intersection of the testing portion 3 and the vertical extensions of the side walls of the optical fiber body 2 are located on the same horizontal plane.

[0061] look Figure 2 In the figure, the test part 3 is formed by two inclined rods gradually approaching and intersecting each other, the inclined rod above the test part 3 extends vertically upward away from the end where the two inclined rods intersect and is fixedly connected to the fixing ring 5, there is a spacing between the vertical parts of the two test parts 3, the two inclined rods of the two test parts 3 correspond to the upper and lower edges of the optical fiber body 2 respectively, and the inclined rods are close to the edges of the optical fiber body 2 but not in direct contact, therefore, the upper and lower inclined rods of the test part 3 are at the same distance from the upper and lower edges of the optical fiber body 2, so that no matter the test part 3 moves up and down or moves left and right, it can touch the optical fiber body 2;

[0062] The lifting mechanism can move the fixing ring 5 upward or downward, thereby lifting or lowering the test part 3. Since the inclined rod of the test part 3 can touch the two side edges above the optical fiber body 2 and the two side edges below the optical fiber body 2, the optical fiber body 2 can be pulled up or down to swing, thereby achieving the effect of shaking the optical fiber body 2 up and down, and shaking the optical fiber body 2 left and right and up and down as a whole.

[0063] See also Figure 2-Figure 9 , and also includes a connecting piece 13, one end of which is connected to the optical fiber testing equipment body 1, and the other end is symmetrically forked and extended up and down, and bent toward each other to form a limit bayonet 19, which is used to limit the fixing ring 5, and the bottom end of the support rod 15 is fixedly connected to the outer wall of the connecting piece 13.

[0064] The support rod 15 is fixed on the connecting piece 13. When the gear 16 rotates and drives the gear ring 6 and the fixed ring 5 to rotate, the fixed ring 5 will slide along the limit stop 19 in the connecting piece 13. The connecting piece 13 is supported on the main body 1 of the optical fiber testing equipment and supports the fixed ring 5 without hindering the rotation effect of the fixed ring 5.

[0065] See also Figure 3-Figure 9 The main body 1 of the optical fiber testing device is provided with a receiving groove 4, and the inner wall of the receiving groove 4 is provided with a vertically extending strip groove 9; the lifting mechanism also includes a connecting block 14 that can reciprocate up and down, and the connecting member 13 is provided with a horizontally arranged sliding groove 21, and the connecting block 14 is connected to a rotating rod 20 extending into the sliding groove 21, and there is a gap between the inner wall of the rotating rod 20 close to the limit bayonet 19 and the rotating rod 20, and the outer wall of the rotating rod 20 is against the inner wall of the sliding groove 21;

[0066] The inner walls of both sides of the receiving groove 4 are symmetrically provided with sliding grooves 10;

[0067] A slider 12 is slidably connected in the slide groove 10 , one end of the slider 12 extends into the interior of the accommodating groove 4 , and a connecting plate 11 is fixedly connected between one end of the slider 12 away from the slide groove 10 and the connecting member 13 .

[0068] The side of the connecting block 14 away from the strip groove 9 is fixedly connected to one end of the rotating rod 20, and the end of the rotating rod 20 away from the connecting block 14 extends to the inside of the sliding groove 21 and is slidably connected to the sliding groove 21. In the initial state, as shown in the fixing ring 5, the rotating rod 20 is located on the side of the sliding groove 21 close to the connecting plate 11, and a gap is left between the rotating rod 20 and the side of the sliding groove 21 close to the limit bayonet 19;

[0069] The connecting block 14 in the lifting mechanism can reciprocate up and down in the strip groove 9. Figure 4 From the perspective of FIG, when the connecting block 14 moves, it drives the rotating rod 20 to move the connecting member 13 together, thereby driving the fixing ring 5, the gear ring 6 and the testing part 3 to move. While moving, the connecting plate 11 moves along with the connecting member 13, and the connecting plate 11 drives the slider 12 to slide in the slide groove 10. When moving upward, the slider 12 slides along the slide groove 10;

[0070] When the slider 12 reaches the corner above the slide slot 10, the connecting block 14 continues to move, and the slider 12 cannot move up further, which will pull the end of the connecting plate 11 connected to the slider 12 and cannot move up, while the connecting block 14 will drive the end of the connecting plate 11 connected to the connecting member 13 to continue to move up, so that the connecting plate 11 tilts. Since the connecting plate 11 and the connecting member 13 are fixedly connected, when the connecting plate 11 tilts, the connecting member 13 will also tilt together, thereby pulling the connecting member 13 and the fixing ring 5 to tilt;

[0071] At the same time, when the connecting block 14 continues to move upward and the connecting member 13 tilts, the sliding groove 21 provided in the connecting member 13 will rotate along the outer wall of the rotating rod 20. As the connecting block 14 continues to move upward and is farther and farther away from the sliding groove 10, the sliding groove 21 will also slide along the outer wall of the rotating rod 20, and the inner wall of the sliding groove 21 on the side close to the limit bayonet 19 will gradually approach the rotating rod 20.

[0072] At this time you can Figure 8 As can be seen from the figure, when the position of the connecting block 14 is higher than the connecting plate 11, since the slider 12 cannot continue to move upward due to the limitation of the slide slot 10, one end of the connecting plate 11 still corresponds to the slider 12, and the other end gradually tilts to align with the direction of the connecting block 14, because Figure 4 In the initial state, one end of the connecting plate 11 corresponds to the slider 12, and the other end corresponds to the connecting block 14;

[0073] On the contrary, when the connecting block 14 moves downward, the slider 12 reaches the corner below the slide slot 10, thereby causing the fixing ring 5 and the testing part 3 to swing downward.

[0074] When the fixing ring 5 and the test part 3 swing upward together, the two inclined rods below the test part 3 swing upward and pull the optical fiber body 2 to tilt upward, and when the fixing ring 5 and the test part 3 swing downward, the two inclined rods above the test part 3 swing downward and push the optical fiber body 2 to tilt downward. This part is used to test whether the optical fiber body 2 is loose when it swings up and down, and to test the amplitude of the optical fiber body 2 swinging up and down;

[0075] The reason why the connecting member 13 and the fixing ring 5 are moved up or down and then swung is that after the test part 3 moves up, the inclined rod below the test part 3 hits the edge below the optical fiber body 2, and the fixing ring 5 and the test part 3 swing upward together, so that when the test part 3 pulls the optical fiber body 2 to tilt upward, a friction force toward the outside of the test hole will be applied to the optical fiber body 2, which can not only test the looseness of the optical fiber body 2, but also test whether the optical fiber body 2 can be easily pulled out of the test hole when the lock catch is stuck in the test hole. The friction force toward the outside of the test hole is applied to the optical fiber body 2 because the swinging trajectory of the test part 3 is an arc;

[0076] On the contrary, after the test part 3 and the connector 13 move downward, the upper inclined rod of the test part 3 contacts the edge of the top of the optical fiber body 2, and then the fixing ring 5 tilts downward, the upper part of the test part 3 tilts to the left, and also applies a thrust to the optical fiber body 2 toward the outside of the test hole.

[0077] See also Figure 3 and Fig. 9 The lifting mechanism also includes a screw rod 8, which is arranged along the axial direction of the strip groove 9. The top of the screw rod 8 is rotatably connected to the inner top wall of the strip groove 9. The connecting block 14 is threadedly connected to the screw rod 8 and is slidably connected to the strip groove 9.

[0078] The connecting block 14 can slide up and down along the outer walls of the two screw rods 8 . When the screw rods 8 rotate left and right, the connecting block 14 will reciprocate up and down along the outer walls of the screw rods 8 and slide in the strip groove 9 .

[0079] See also Figure 4-Figure 9 There is a gap between the bottom end of the screw rod 8 and the inner bottom wall of the strip groove 9, and a servo motor 7 is arranged at the gap. The servo motor 7 is fixedly mounted on the inner wall of the strip groove 9, and the driving end of the servo motor 7 is fixedly connected to the bottom end of the screw rod 8.

[0080] The servo motor 7 is used to drive the screw rod 8 to rotate, so that the connecting block 14 can slide along the screw rod 8. The top end of the screw rod 8 is rotatably connected to the inner top wall of the strip groove 9, so when the screw rod 8 rotates, its top end will rotate along the inner top wall of the strip groove 9.

[0081] See also Figure 3-Figure 6 The connecting member 13 and a portion of the fixing ring 5 away from the testing portion 3 are located in the receiving groove 4 , and the connecting member 13 corresponds horizontally to the gap between the two testing portions 3 .

[0082] In the initial state, that is, before the fixing ring 5 rotates, the gap between the two test parts 3 is horizontally corresponding to the connector 13. At this time, the test part 3 does not contact the optical fiber body 2, which also facilitates the insertion of the plug of the optical fiber body 2 into the test hole on the optical fiber testing device body 1. When the fixing ring 5 rotates, the test part 3 will also swing. At this time, the test part 3 will contact the optical fiber body 2 and push the optical fiber body 2 to swing, and the inclined test part 3 will block the test hole at this time. Therefore, in the initial state, the gap between the two test parts 3 should be aligned with the connector 13.

Claims

1. An optical fiber testing device, comprising an optical fiber testing device body (1), on which a test hole is provided, and a plug connector of an optical fiber body (2) is inserted into the test hole, characterized in that: Also includes, The test head has at least two test parts (3) extending vertically and symmetrically arranged on both sides of the optical fiber body (2); A fixed ring (5) is rotatably arranged on a main body (1) of an optical fiber testing device, with an axis perpendicular to the ring surface of the fixed ring (5) and passing through the center of the fixed ring (5) as a rotation axis. A test head is arranged on the fixed ring (5). The perpendicular midlines of the two test parts (3) are not arranged colinearly with the rotation axis, so that when the fixed ring (5) rotates clockwise or counterclockwise, the two test parts (3) alternately abut against the two sides of the optical fiber main body (2).

2. An optical fiber testing device as claimed in claim 1, characterized in that: The fixing ring (5) is provided with an annular groove, and a gear ring (6) is provided in the annular groove; A gear (16) meshing with the gear ring (6) is rotatably connected to the main body (1) of the optical fiber testing device; a driving member is also provided on the main body (1) of the optical fiber testing device for driving the gear (16) to rotate, thereby driving the fixed ring (5) to rotate via the gear ring (6).

3. An optical fiber testing device as described in claims 1-2, characterized in that: Also includes, A lifting mechanism is arranged on the optical fiber testing device body (1), wherein a driving part of the lifting mechanism is connected to the fixing ring (5) and is used to raise or lower the height of the fixing ring (5); The intersection of the testing portion (3) and the vertical extensions of the side walls on both sides of the optical fiber body (2) is located on the same horizontal plane.

4. An optical fiber testing device as claimed in claim 3, characterized in that: It also includes a connecting piece (13), one end of which is connected to the optical fiber testing device body (1), and the other end of which is symmetrically forked and extends up and down and is bent toward each other to form a limit bayonet (19) for limiting the fixing ring (5).

5. An optical fiber testing device as claimed in claim 4, characterized in that: The optical fiber testing device body (1) is provided with a receiving groove (4), and the inner wall of the receiving groove (4) is provided with a vertically extending strip groove (9); The lifting mechanism also includes a connecting block (14) that can reciprocate up and down, the connecting piece (13) is provided with a transversely arranged sliding groove (21), the connecting block (14) is connected to a rotating rod (20) extending into the sliding groove (21), a gap is provided between the inner wall of the rotating rod (20) close to the limit bayonet (19) and the rotating rod (20), and the outer wall of the rotating rod (20) abuts against the inner wall of the sliding groove (21); The inner walls of both sides of the receiving groove (4) are symmetrically provided with sliding grooves (10); A slider (12) is slidably connected in the slide groove (10), one end of the slider (12) extends into the interior of the accommodating groove (4), and a connecting plate (11) is connected between the end of the slider (12) away from the slide groove (10) and the connecting piece (13).

6. An optical fiber testing device as claimed in claim 5, characterized in that: The lifting mechanism also includes a screw rod (8), which is arranged along the axial direction of the strip groove (9), the top end of the screw rod (8) is rotatably connected to the inner top wall of the strip groove (9), and the connecting block (14) is threadedly connected to the screw rod (8) and slidably connected to the strip groove (9).

7. An optical fiber testing device as claimed in claim 6, characterized in that: There is a gap between the bottom end of the screw rod (8) and the inner bottom wall of the strip groove (9), and a servo motor (7) is arranged at the gap. The servo motor (7) is mounted on the inner wall of the strip groove (9), and the driving end of the servo motor (7) is connected to the bottom end of the screw rod (8).

8. An optical fiber testing device as claimed in claim 7, characterized in that: The connecting piece (13) and a partial area of ​​the fixing ring (5) away from the testing part (3) are located in the receiving groove (4), and the connecting piece (13) corresponds horizontally to the gap between the two testing parts (3).

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