Optical-electric composite cable strength testing device

Abstract

The application relates to a kind of photoelectric composite cable strength testing devices, including base;First sliding slot is opened in the vertical plate of the both sides of the base, and first sliding slot is slidably matched with chuck mechanism;Two chuck mechanisms are arranged on the base, and are symmetrically arranged;Two chuck mechanisms are used to straighten photoelectric composite cable;By setting drive ring, so that drive ring is threadedly matched with clamping assembly, the clamping assembly fixed at one end of slide is rotated along the axis when being threadedly matched with drive ring, since the two ends of the photoelectric composite cable to be detected are in clamped state, thus, under the driving of two rotating clamping assemblies, photoelectric composite cable will be in twisted state;Compared with prior art, the device can test the tensile strength of photoelectric composite cable under normal state, and can also test the tensile strength of photoelectric composite cable under twisted state, has practical use prospect, solves the function that existing photoelectric composite cable tensile strength test can only be tested under normal state.

Description

Technical Field

[0001] This invention relates to the field of optical-electric composite cable strength testing technology, and in particular to an optical-electric composite cable strength testing device. Background Technology

[0002] Optical fiber composite cable is a type of cable that integrates optical fiber and copper power transmission wire, and can solve the problems of broadband network access, equipment power supply and signal transmission.

[0003] When using fiber optic composite cables as a transmission medium for long-distance information transmission, the cables need to be buried underground. Since these cables are underground for extended periods, they require excellent physical strength. Therefore, physical strength testing is necessary before use. A common testing device, such as the cable tensile strength testing device disclosed in patent CN111537352B, includes a guide rod and a tensile test group slidably connected to the guide rod for fixing the test cable. The tensile test group includes two tensile test blocks, with at least one auxiliary test block positioned between them. The two tensile test blocks clamp both ends of the test cable, and the auxiliary test block assists in clamping the cable. A driving device allows multiple connectors to contract synchronously, further increasing or decreasing the distance between the tensile test blocks and the auxiliary test block. This allows the offset of the auxiliary test block to visually reflect the changes in tensile strength between different segments of the test cable during tensile testing. This effectively reduces the testing steps and makes testing more convenient.

[0004] However, although the above scheme can test the changes in tensile strength of each segment of the cable by using the driving device, tensile test block and auxiliary test block, it can only theoretically test the horizontal state of the optical fiber composite cable. In reality, when the optical fiber composite cable is laid underground, it may twist, which will cause changes in its physical strength indicators such as tensile strength. Therefore, the above scheme can only test the tensile strength of the optical fiber composite cable under theoretical or ideal conditions. When it is necessary to test the torsional strength of the optical fiber composite cable or the tensile strength under torsion, other equipment needs to be used to measure it again. Therefore, the above-mentioned optical fiber composite cable tensile strength testing device has a relatively simple effect and is not conducive to testing. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the limitations of the prior art.

[0006] To address the aforementioned technical problems, this invention provides a strength testing device for optoelectronic composite cables, comprising a base; first sliding grooves are formed on the two upright plates of the base, and clamping mechanisms are slidably engaged within the first sliding grooves; two clamping mechanisms are provided on the base and arranged symmetrically; the two clamping mechanisms are used to straighten the optoelectronic composite cable; a bidirectional lead screw is rotatably connected to the bottom of the base, and the bidirectional lead screw is threadedly engaged with the two clamping mechanisms; each clamping mechanism includes a slide block; a clamping component is fixedly connected to one end of the slide block, and a driving ring is slidably engaged at the other end of the slide block; the driving ring is threadedly engaged with the clamping component, and can drive the clamping component to rotate along an axis.

[0007] In one embodiment of the present invention, a slide rail is provided in the middle of the base, and the slide block slides in the slide rail; the bidirectional lead screw is rotatably connected to the middle of the slide rail via a bracket; a handle is rotatably connected to the middle of the base; and a protective plate is slidably fitted between the two upright plates on both sides of the middle of the base.

[0008] In one embodiment of the present invention, a column is fixedly connected to one end of the base corresponding to the clamping assembly, and the clamping assembly is slidably connected to the column; the clamping assembly includes a first connecting ring; a sleeve is fixedly connected to one end of the first connecting ring facing the drive ring; the sleeve is threaded on the outside of one end near the first connecting ring, and the drive ring is threaded inside to match it; a vertical plate is fixedly connected to the bottom of the drive ring, and the bottom of the vertical plate is slidably connected to the slide block.

[0009] In one embodiment of the present invention, a plurality of spring rods are fixedly connected to the side wall of the vertical plate, and the spring rods pass through the column; the surface of the slide seat is provided with a movable groove, and the vertical plate is slidably connected in the movable groove.

[0010] In one embodiment of the present invention, the clamping assembly further includes a second connecting ring; the second connecting ring is fixed to the first connecting ring by bolts; an adjustment groove is provided in the first connecting ring; a fixing ring is fixedly connected to the side of the second connecting ring facing the first connecting ring, and a push rod is movably connected in the fixing ring; the push rod passes through the fixing ring, and the top of the push rod is movably connected in the adjustment groove; a push plate is fixedly connected to the bottom of the push rod, and the push plate is attached to the surface of the optoelectronic composite cable.

[0011] In one embodiment of the present invention, the first connecting ring has a through hole for the bolt to pass through, and the second connecting ring has an arc-shaped groove; the arc-shaped groove has an oval structure; the bolt can move within the arc-shaped groove; a ratchet is fixedly connected to the side of the second connecting ring away from the first connecting ring, and a pawl is hinged to the column; the pawl is engaged with the ratchet.

[0012] In one embodiment of the present invention, racks are fixedly connected to both sides of the vertical plate, and the racks on the two symmetrical vertical plates are arranged in a centrally symmetrical manner; a gear is fixedly connected to the middle of the handle; the gear is located in the middle of the two centrally symmetrically arranged racks, and the gear meshes with both centrally symmetrical racks.

[0013] In one embodiment of the present invention, multiple adjustment grooves are provided within the first connecting ring, and the multiple adjustment grooves are arranged in a circular array; the adjustment grooves are triangular structures, and the top of the abutment is an arc-shaped structure.

[0014] In one embodiment of the present invention, the adjustment grooves in the two symmetrical first connecting rings are oriented in opposite directions, and the two symmetrical ratchet wheels and pawls are oriented in opposite directions.

[0015] In one embodiment of the present invention, a plurality of abutments are movably connected on the second connecting ring, and the plurality of abutments are arranged in a circumferential array; the abutment plate is set corresponding to the number of abutments.

[0016] The technical solution of the present invention has the following advantages compared with the prior art:

[0017] This invention, by setting a driving ring, allows the driving ring to thread into the clamping assembly. When the clamping assembly, fixed to one end of the slide, engages with the driving ring, it rotates along the axis. Since both ends of the optoelectronic composite cable to be tested are clamped, the optoelectronic composite cable is twisted under the influence of the two rotating clamping assemblies. Compared with the prior art, this device can perform tensile strength testing of optoelectronic composite cables under normal conditions, as well as tensile strength testing of optoelectronic composite cables under torsion conditions. It has practical application prospects and solves the problem that existing optoelectronic composite cable tensile strength testing can only be performed under normal conditions.

[0018] This invention uses an arc-shaped sliding groove and bolts to fix the first connecting ring and the second connecting ring. At the same time, the cooperation of the pawl and the ratchet ensures that the rotation of the first connecting ring and the second connecting ring must be applied manually. Without external force, they always maintain a constant relative position. This means that even when the optoelectronic composite cable is twisted, the clamping tightness of the optoelectronic composite cable is maintained. This prevents the optoelectronic composite cable from detaching from the clamping assembly or from moving and affecting the twisting process when the optoelectronic composite cable is twisted. Attached Figure Description

[0019] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a perspective view of one embodiment of the present invention;

[0021] Figure 2 This is a partial perspective view of one embodiment of the present invention;

[0022] Figure 3 This is a perspective view of the clamping mechanism in one embodiment of the present invention;

[0023] Figure 4 This is a first perspective view of the clamping assembly in one embodiment of the present invention;

[0024] Figure 5 This is a second perspective view of the clamping assembly in one embodiment of the present invention;

[0025] Explanation of reference numerals in the accompanying drawings: 1. Base; 11. First slide groove; 12. Handle; 13. Two-way lead screw; 14. Gear; 2. Guard plate; 3. Chuck mechanism; 31. Slide block; 32. Clamping assembly; 321. First connecting ring; 322. Thread; 323. Sleeve; 324. Second connecting ring; 325. Abutment rod; 326. Abutment plate; 327. Arc-shaped slide groove; 328. Adjustment groove; 329. Ratchet; 33. Drive ring; 331. Spring rod; 34. Rack; 35. Column; 351. Pawl. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0027] Example 1:

[0028] Reference Figures 1-5As shown, this invention provides a strength testing device for optoelectronic composite cables, including a base 1; first sliding grooves 11 are formed on the two upright plates of the base 1, and clamping mechanisms 3 are slidably fitted within the first sliding grooves 11; two clamping mechanisms 3 are provided on the base 1 and are arranged symmetrically; the two clamping mechanisms 3 are used to straighten the optoelectronic composite cable; similar to existing optoelectronic composite cable tensile strength testing equipment, two symmetrically arranged clamping mechanisms 3 are used to straighten both ends of the optoelectronic composite cable to be tested, which is beneficial for subsequent strength testing, and the clamping mechanisms 3 can slide in the base 1, which is a conventional setting; A bidirectional lead screw 13 is rotatably connected to the bottom of the base 1, and the bidirectional lead screw 13 is threadedly engaged with two clamping mechanisms 3. The clamping mechanism 3 includes a slide 31. One end of the slide 31 is fixedly connected to a clamping component 32, and the other end of the slide 31 is slidably engaged with a drive ring 33. The drive ring 33 is threadedly engaged with the clamping component 32, which can drive the clamping component 32 to rotate along the axis. Similar to the above-mentioned optical fiber composite cable tensile strength testing equipment, the bidirectional lead screw 13 is used as the driving structure for the two clamping mechanisms 3. An external drive motor drives the bidirectional lead screw 13 to rotate in the base 1, and the two clamping mechanisms 3 are slidably engaged with the two clamping mechanisms 3. A ball nut is provided on the seat 31, which drives the slide 31 to slide horizontally in the base 1 when the bidirectional screw 13 rotates. This causes the two clamping mechanisms 3 to move closer or further apart synchronously. Specifically, when the two clamping mechanisms 3 move closer, the optoelectronic composite cable to be tested can be placed in the two clamping mechanisms 3, so that both ends of the optoelectronic composite cable to be tested can be clamped in the two clamping mechanisms 3. Then, the motor is started to drive the bidirectional screw 13 to rotate, which can straighten the middle of the optoelectronic composite cable to be tested. The cable is then tested using a tensile test block and auxiliary test block similar to those used in existing optoelectronic composite cable tensile strength testing equipment. (Not shown in this solution), the tensile strength value of the optical fiber composite cable to be tested is measured. Specifically, in order to avoid the optical fiber composite cable from twisting during actual use and affecting the laying and transmission speed of the optical fiber composite cable, in this solution, the drive ring 33 is driven so that the drive ring 33 engages with the thread 322 of the clamping component 32. When the clamping component 32, which is fixed to one end of the slide block 31, engages with the thread 322 of the drive ring 33, it will rotate along the axis. Since both ends of the optical fiber composite cable to be tested are clamped, the optical fiber composite cable will be twisted under the drive of the two rotating clamping components 32.

[0029] For details, see attached. Figure 1As shown, if the left clamping component 32 rotates clockwise, the right clamping component 32 should rotate counterclockwise. This allows the optoelectronic composite cable to be in a uniform twisted state. Restarting the motor can stretch the twisted optoelectronic composite cable, and the tensile strength value of the optoelectronic composite cable can be measured through the auxiliary test block and the tensile test block. Compared with the existing optoelectronic composite cable tensile strength testing device, this device can perform tensile strength testing of optoelectronic composite cables under normal conditions, and also perform tensile strength testing of optoelectronic composite cables under twisted conditions. It has practical application prospects and solves the problem that the existing optoelectronic composite cable tensile strength testing can only perform testing under normal conditions.

[0030] In one embodiment of the present invention, a slide rail is provided in the middle of the base 1, and the slide block 31 slides in the slide rail; by setting the slide rail, the slide block 31 can slide in the slide rail, that is, the two slide blocks 31 can slide synchronously in the slide rail under the drive of the bidirectional lead screw 13; the bidirectional lead screw 13 is rotatably connected to the middle of the slide rail via a bracket; a handle 12 is rotatably connected to the middle of the base 1; a guard plate 2 is slidably fitted between the two upright plates in the middle of the base 1; a bracket is set in the middle of the slide rail to support the bidirectional lead screw 13 and maintain the stability of the bidirectional lead screw 13 when rotating, and a rotatable handle 12 is set on the upright plate in the middle of the base 1 to control the synchronous movement of the two drive rings 33. The position where the guard plate 2 is set in the middle of the base 1 can be used for friction strength testing. The specific testing method is the same as the existing testing method, that is, a heavy object is used to squeeze the blade head to scratch the surface of the optoelectronic composite cable to test the friction resistance. After removing the guard plate 2, a tensile test block and an auxiliary test block (not shown in this solution) are placed to perform the tensile strength test.

[0031] Example 2

[0032] Reference Figures 3-5As shown, in this embodiment, a column 35 is fixedly connected to one end of the base 1 corresponding to the clamping assembly 32, and the clamping assembly 32 is slidably connected to the column 35; specifically, the clamping assembly 32 is supported on the base 1 by the column 35, and the clamping assembly 32 and the column 35 maintain a rotatable connection; the clamping assembly 32 includes a first connecting ring 321; a sleeve 323 is fixedly connected to one end of the first connecting ring 321 facing the driving ring 33; the sleeve 323 has a thread 322 on the outside of one end near the first connecting ring 321, and the driving ring 33 has a matching thread 322 inside; the first connecting ring 321 is fixedly connected to the base 1 at one end of the base 1, and the clamping assembly 32 is slidably connected to the column 35. The connecting ring 321 and the driving ring 33 are threaded together. When the driving ring 33 is manually driven to move toward the first connecting ring 321, the first connecting ring 321 located at one end of the base 1 can rotate along the axis. This achieves the purpose of driving the optical fiber composite cable to twist while clamping the optical fiber composite cable. Initially, the driving ring 33 is slidably engaged with the sleeve 323. A vertical plate is fixedly connected to the bottom of the driving ring 33, and the bottom of the vertical plate is slidably connected to the slide block 31. When the driving ring 33 moves, it can slide on the slide block 31 through the vertical plate at its bottom. The connection between the vertical plate and the slide block 31 restricts the movement of the driving ring 33.

[0033] In one embodiment of the present invention, a plurality of spring rods 331 are fixedly connected to the side wall of the vertical plate, and the spring rods 331 pass through the column 35; the surface of the slide block 31 is provided with a movable groove, and the vertical plate is slidably connected in the movable groove; specifically, as described above, a movable groove is provided on the surface of the slide block 31, and the movable groove is a T-shaped structure. The bottom of the corresponding vertical plate is set with a T-shaped structure to match the movable groove. Under manual driving, the drive ring 33 can slide in the slide block 31 in connection with the vertical plate and always remain stable. At the same time, the spring rods 331 are fixedly connected to the vertical plate. When the drive ring 33 moves toward the column 35, the spring is compressed and the spring rods 331 store force, thereby providing a buffering effect on the vertical plate and the drive ring 33.

[0034] In one embodiment of the present invention, the clamping assembly 32 further includes a second connecting ring 324; the second connecting ring 324 is fixed to the first connecting ring 321 by bolts; the clamping assembly 32 includes a first connecting ring 321 and a second connecting ring 324, and the first connecting ring 321 and the second connecting ring 324 are fixed together by bolts. When the driving ring 33 drives the clamping assembly 32 to rotate, the first connecting ring 321 and the second connecting ring 324 rotate together on the column 35; an adjustment groove 328 is provided in the first connecting ring 321; a fixing ring is fixedly connected to the side of the second connecting ring 324 facing the first connecting ring 321, and a push rod 325 is movably connected in the fixing ring; the push rod 325 passes through the fixing ring, and the top of the push rod 325 is movably connected in the adjustment groove 328; A stop plate 326 is fixedly attached to the bottom of the stop rod 325, and the stop plate 326 is attached to the surface of the optoelectronic composite cable. When the two ends of the optoelectronic composite cable to be tested are clamped, the stop plate 326 is tightly attached to the surface of the optoelectronic composite cable. In order to increase stability, rivets can be installed at the bottom of the stop plate 326 to firmly lock the ends of the optoelectronic composite cable. At the same time, when the stop plate 326 contacts the optoelectronic composite cable, since different optoelectronic composite cables have different sizes, the stop rod 325 used for connection at its upper end can move in the fixing ring. By setting an adjustment groove 328 in the first connecting ring 321, the end of the stop rod 325 can slide in the adjustment groove 328 to maintain the stability of the stop rod 325. At the same time, a return spring should be set at the connection between the stop rod 325 and the fixing ring to buffer the stop rod 325.

[0035] In one embodiment of the present invention, the first connecting ring 321 has a through hole for a bolt to pass through, and the second connecting ring 324 has an arc-shaped groove 327; the arc-shaped groove 327 has an oval structure; the bolt can move within the arc-shaped groove 327; a ratchet 329 is fixedly connected to the side of the second connecting ring 324 away from the first connecting ring 321, and a pawl 351 is hinged to the column 35; the pawl 351 is engaged with the ratchet 329; in order to achieve positioning of optical fiber composite cables of different sizes, it is necessary to manually rotate the first connecting ring 321 and the second connecting ring 324, so that relative rotation occurs between the first connecting ring 321 and the second connecting ring 324. Under the constraint of the adjustment groove 328 on the first connecting ring 321, when the second connecting ring 324 rotates relative to the first connecting ring 321... When the abutment 325 is restricted by the adjustment groove 328, it moves vertically on the fixed ring, thereby driving the abutment plate 326 to move vertically. That is, by making the first connecting ring 321 and the second connecting ring 324 rotate relative to each other, the tightness of the clamping of the optoelectronic composite cable can be adjusted. Specifically, the first connecting ring 321 and the second connecting ring 324 are fixed by the arc-shaped sliding groove 327 in conjunction with the bolt. At the same time, the rotation of the first connecting ring 321 and the second connecting ring 324 must be manually applied by utilizing the cooperation of the pawl 351 and the ratchet 329. Without the action of external force, they always maintain a relative position without changing. That is, the tightness of the clamping of the optoelectronic composite cable can be maintained even when the optoelectronic composite cable is twisted. This prevents the optoelectronic composite cable from disengaging from the clamping assembly 32 or from moving when the optoelectronic composite cable is twisted, thus affecting the twisting process.

[0036] Example 3

[0037] Reference Figure 2 As shown, in one embodiment of the present invention, racks 34 are fixedly connected to both sides of the vertical plate, and the racks 34 on the two symmetrical vertical plates are arranged in a centrally symmetrical manner; a gear 14 is fixedly connected to the middle of the handle 12; the gear 14 is located in the middle of the two centrally symmetrically arranged racks 34, and the gear 14 meshes with both centrally symmetrical racks 34; in order to make the two ends of the optoelectronic composite cable twist synchronously, that is, to make the two clamping components 32 rotate synchronously and in opposite directions, it is necessary to make the two driving rings 33 engage synchronously with the threads 322 on the sleeve 323. By setting the handle 12 and setting the gear 14 in the middle of the handle 12, which engages with the racks 34 on both sides of the vertical plate, the two racks 34 can be moved synchronously when the handle 12 rotates, thereby driving the two driving rings 33 to engage with the threads 322, so as to achieve the purpose of driving the two ends of the optoelectronic composite cable to twist synchronously.

[0038] Example 4

[0039] Reference Figures 4-5As shown, in one embodiment of the present invention, multiple adjustment grooves 328 are provided within the first connecting ring 321, and the multiple adjustment grooves 328 are arranged in a circumferential array; the adjustment grooves 328 are triangular structures, and the top of the abutment rod 325 is an arc-shaped structure; by setting the adjustment grooves 328 as triangular structures, after the first connecting ring 321 and the second connecting ring 324 rotate relative to each other, the length of the abutment rod 325 located within the adjustment grooves 328 can gradually change, thereby achieving the initial clamping purpose of the end of the optoelectronic composite cable; the top of the abutment rod 325 is set as an arc-shaped structure, which facilitates its sliding within the adjustment grooves 328.

[0040] In one embodiment of the present invention, the adjustment grooves 328 in the two symmetrical first connecting rings 321 are oriented in opposite directions, and the two symmetrical ratchet wheels 329 and pawls 351 are oriented in opposite directions.

[0041] In one embodiment of the present invention, a plurality of abutment rods 325 are movably connected to the second connecting ring 324, and the plurality of abutment rods 325 are arranged in a circumferential array; the abutment plate 326 is configured corresponding to the number of abutment rods 325.

[0042] Working Principle: While existing solutions utilize a drive device, tensile test blocks, and auxiliary test blocks to test the tensile changes in different cable segments, theoretically, they can only test the horizontal state of the fiber optic composite cable. In reality, when the fiber optic composite cable is laid underground, it may twist, causing changes in its tensile strength and other physical strength indicators. Therefore, the above solutions can only test the tensile strength of the fiber optic composite cable under theoretical or ideal conditions. To test the torsional strength or tensile strength under torsional conditions, other equipment is needed for remeasurement. Thus, the aforementioned fiber optic composite cable tensile strength testing device has a relatively limited effectiveness and is not suitable for practical testing. Similar to the aforementioned tensile strength testing equipment for optoelectronic composite cables, a bidirectional lead screw 13 is used as the driving structure for the two clamping mechanisms 3. An external drive motor drives the bidirectional lead screw 13 to rotate within the base 1. By setting ball nuts on the slide block 31, the slide block 31 can be driven to slide horizontally within the base 1 when the bidirectional lead screw 13 rotates, thereby causing the two clamping mechanisms 3 to move closer or further apart synchronously. Specifically, when the two clamping mechanisms 3 are close together, the optoelectronic composite cable to be tested can be placed within the two clamping mechanisms 3, so that both ends of the optoelectronic composite cable to be tested can be clamped within the two clamping mechanisms 3. When the two ends of the optoelectronic composite cable to be tested are clamped, the abutment plate 326 is tightly attached to the optoelectronic... On the surface of the composite cable, and to increase stability, rivets can be installed at the bottom of the abutment plate 326 to firmly lock the end of the optoelectronic composite cable. Simultaneously, when the abutment plate 326 contacts the optoelectronic composite cable, due to the different sizes of different optoelectronic composite cables, the abutment rod 325 at its upper end can move within the fixing ring. An adjustment groove 328 is provided within the first connecting ring 321, allowing the end of the abutment rod 325 to slide within the adjustment groove 328, maintaining the stability of the abutment rod 325. A return spring should be provided at the connection between the abutment rod 325 and the fixing ring to buffer the abutment rod 325. Then, the motor is started, driving the bidirectional lead screw 13 to rotate, which can then move the middle part of the optoelectronic composite cable to be tested. The cable is straightened and its tensile strength is measured using a tensile test block and auxiliary test block similar to those in the existing optical fiber composite cable tensile strength testing equipment. Specifically, to avoid the optical fiber composite cable from twisting during actual use and affecting the laying and transmission speed, the drive ring 33 is driven in this solution to engage with the clamping component 32 thread 322. The clamping component 32, which is fixed to one end of the slide block 31, will rotate along the axis when it engages with the drive ring 33 thread 322. Since both ends of the optical fiber composite cable to be tested are clamped, the optical fiber composite cable will be twisted under the drive of the two rotating clamping components 32.

[0043] If the left clamping component 32 rotates clockwise, the right clamping component 32 should rotate counterclockwise. This allows the optoelectronic composite cable to be in a uniform twisted state. Restarting the motor can stretch the twisted optoelectronic composite cable, allowing the tensile strength of the cable to be measured using the auxiliary test block and the tensile test block. Compared to existing optoelectronic composite cable tensile strength testing devices, this device can perform tensile strength testing under normal conditions and also under twisted conditions, demonstrating practical application potential and solving the problem that existing optoelectronic composite cable tensile strength testing methods can only perform tests under normal conditions. The first connecting ring 321 and the drive ring 33 on the clamping component 32 have a threaded engagement relationship (322). When the drive ring 33 is manually moved towards the first connecting ring 321, the first connecting ring 321 at one end of the base 1 rotates along the axis, thereby achieving the purpose of twisting the optoelectronic composite cable while clamping it. To position optoelectronic composite cables of different sizes, the first connecting ring 321 needs to be manually rotated. The first connecting ring 321 and the second connecting ring 324 allow for relative rotation between them. Under the constraint of the adjusting groove 328 on the first connecting ring 321, when the second connecting ring 324 rotates relative to the first connecting ring 321, the abutment rod 325 is restricted by the adjusting groove 328 and moves vertically onto the fixed ring, thereby causing the abutment plate 326 to move vertically. In other words, by causing the first connecting ring 321 and the second connecting ring 324 to rotate relative to each other, the tightness of the optical fiber composite cable clamping can be adjusted. Specifically… The first connecting ring 321 and the second connecting ring 324 are fixed by the arc-shaped sliding groove 327 and the bolt. At the same time, the ratchet 351 and the ratchet 329 are used to make the rotation of the first connecting ring 321 and the second connecting ring 324 only possible by human force. Without external force, they always maintain a relative position and do not change. That is, the optical fiber composite cable can be clamped tightly even when it is twisted. This prevents the optical fiber composite cable from disengaging from the clamping component 32 or from moving and affecting the twisting process when it is twisted.

[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A strength testing device for optoelectronic composite cables, characterized in that: The system includes a base (1); a first sliding groove (11) is provided on the two upright plates of the base (1), and a clamping mechanism (3) is slidably fitted in the first sliding groove (11); two clamping mechanisms (3) are provided on the base (1) and are arranged symmetrically; the two clamping mechanisms (3) are used to straighten the optical fiber composite cable; a bidirectional lead screw (13) is rotatably connected to the bottom of the base (1), and the bidirectional lead screw (13) is threaded (322) with the two clamping mechanisms (3); the clamping mechanism (3) includes a slide (31); a clamping component (32) is fixedly connected to one end of the slide (31), and a driving ring (33) is slidably fitted to the other end of the slide (31); the driving ring (33) is threaded (322) with the clamping component (32) and can drive the clamping component (32) to rotate along the axis; The base (1) has a slide rail in the middle, and the slide block (31) slides in the slide rail; the bidirectional lead screw (13) is rotatably connected to the middle of the slide rail via a bracket; the base (1) has a handle (12) rotatably connected to the middle; the base (1) has a guard plate (2) slidably fitted between the two upright plates on the middle side. A column (35) is fixedly connected to one end of the base (1) corresponding to the clamping assembly (32), and the clamping assembly (32) is slidably connected to the column (35); the clamping assembly (32) includes a first connecting ring (321); a sleeve (323) is fixedly connected to one end of the first connecting ring (321) facing the drive ring (33); the sleeve (323) has a thread (322) on the outside of one end close to the first connecting ring (321), and the drive ring (33) has a matching thread (322) inside; a vertical plate is fixedly connected to the bottom of the drive ring (33), and the bottom of the vertical plate is slidably connected to the slide (31); The vertical plate is fixedly connected to both sides with racks (34), and the racks (34) on the two symmetrical vertical plates are arranged in a centrally symmetrical manner; the handle (12) is fixedly connected to the middle with a gear (14); the gear (14) is located in the middle of the two centrally symmetrical racks (34), and the gear (14) meshes with both centrally symmetrical racks (34).

2. The photoelectric composite cable strength testing device according to claim 1, characterized in that: Multiple spring rods (331) are fixed to the side wall of the vertical plate, and the spring rods (331) pass through the column (35); the slide (31) has a movable groove on its surface, and the vertical plate is slidably connected in the movable groove.

3. The photoelectric composite cable strength testing device according to claim 2, characterized in that: The clamping assembly (32) further includes a second connecting ring (324); the second connecting ring (324) is fixed to the first connecting ring (321) by bolts; an adjustment groove (328) is provided in the first connecting ring (321); a fixing ring is fixedly connected to the side of the second connecting ring (324) facing the first connecting ring (321), and a push rod (325) is movably connected in the fixing ring; the push rod (325) passes through the fixing ring, and the top of the push rod (325) is movably connected in the adjustment groove (328); a push plate (326) is fixedly connected to the bottom of the push rod (325), and the push plate (326) is attached to the surface of the optoelectronic composite cable.

4. The photoelectric composite cable strength testing device according to claim 3, characterized in that: The first connecting ring (321) has a through hole for the bolt to pass through, and the second connecting ring (324) has an arc-shaped groove (327); the arc-shaped groove (327) has an oval structure; the bolt can move in the arc-shaped groove (327); a ratchet (329) is fixedly connected to the side of the second connecting ring (324) away from the first connecting ring (321), and a pawl (351) is hinged to the column (35); the pawl (351) is engaged with the ratchet (329).

5. The photoelectric composite cable strength testing device according to claim 4, characterized in that: Multiple adjustment grooves (328) are provided in the first connecting ring (321), and the multiple adjustment grooves (328) are arranged in a circular array; the adjustment grooves (328) are triangular structures, and the top of the abutment (325) is an arc-shaped structure.

6. The photoelectric composite cable strength testing device according to claim 5, characterized in that: The adjustment grooves (328) in the two symmetrical first connecting rings (321) are oriented in opposite directions, and the two symmetrical ratchet wheels (329) and pawls (351) are oriented in opposite directions.

7. The photoelectric composite cable strength testing device according to claim 6, characterized in that: Multiple abutments (325) are movably connected on the second connecting ring (324), and the multiple abutments (325) are arranged in a circumferential array; the abutment plate (326) is set according to the number of abutments (325).

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