A device for testing the tensile strength of power cables

Abstract

This invention discloses a power cable tensile strength testing device, relating to the field of cable tensile strength testing technology. The device includes a working box with a supporting wall at the bottom. A tensile strength testing mechanism is built into the working box, comprising a clamping component and a rotating component. One end of the cable is connected to the clamping component, and the other end is wound around a rotating roller of the rotating component. An auxiliary simulation mechanism is disposed between the clamping component and the rotating component. This application integrates the tensile strength testing mechanism and the auxiliary simulation mechanism, enabling simultaneous cable tensile strength testing and combined testing with various environmental simulations, thus improving the accuracy and reliability of the test.

Description

Technical Field

[0001] This invention relates to the field of cable breaking force testing technology, specifically to a device for testing the breaking force of power cables. Background Technology

[0002] Cable breaking strength testing is a crucial test for evaluating the mechanical properties of cables and ensuring their ability to withstand specified mechanical tensile forces in practical applications. This test is essential for ensuring the reliability and safety of power transmission, and is particularly applicable to applications such as overhead insulated cables and load-bearing detection cables that require significant mechanical loads. By conducting cable breaking strength testing, it can be verified whether the mechanical strength of cable products meets design and standard requirements, which is vital for ensuring power grid safety and preventing power outages caused by cable breakage.

[0003] In the process of developing this application, the applicant discovered at least the following shortcomings in the relevant technology: Traditional tensile testing devices can usually only perform a single tensile test, which makes it difficult to realistically simulate the complex environmental stresses that cables experience in actual use, such as the combined effects of multiple factors like wind, snow adhesion, and foreign object impact. This leads to discrepancies between the test results and the performance under actual working conditions. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a power cable tensile strength testing device, which aims to at least partially solve the technical problem of the difficulty in realistically simulating the complex environmental stresses that cables experience in actual use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A power cable tensile strength testing device, the testing device comprising: a working box, the bottom of which is configured as a support wall; A tensile testing mechanism, built into the working box, includes a clamping component, a force sensor, and a rotating component. The force sensor is connected to the support wall and has a detection part. The clamping component is connected to the detection part of the force sensor. The rotating component is connected to the support wall. The rotating component and the clamping component are arranged opposite to each other along a first direction. The rotating component includes a drive source and a rotating roller. The rotating roller is connected to the drive source. One end of a cable is connected to the clamping component, and the other end of the cable is wound around the rotating roller. An auxiliary simulation mechanism is disposed between the clamping component and the rotating component. The auxiliary simulation mechanism includes a laser emitter, a laser receiver, an adhesive substance simulator, an airflow simulator, and a falling object simulator, wherein: Both the laser emitter and the laser receiver are connected to the top surface of the support wall, with the emitting part of the laser emitter and the receiving part of the laser receiver arranged vertically opposite each other. The cable is disposed between the emitting part of the laser emitter and the receiving part of the laser receiver. The airflow simulator is connected to the top surface of the support wall, and the air outlet of the airflow simulator is located on the side of the cable along a second direction to blow airflow toward the cable to simulate wind blowing on the cable during use. The adhering object simulator is connected to the working box, and the output part of the adhering object simulator is located above the cable to simulate the situation of impurities adhering to the cable. The falling object simulator is connected to the top of the working box and is used to simulate falling objects under different weather conditions.

[0006] In some embodiments, the rotating roller has a receiving groove, and the sidewall of the receiving groove has oppositely arranged through grooves; the tensile testing mechanism further includes a clamping member, which includes a connecting rod, a connecting seat, and a buffer block. The connecting seat is connected to the bottom of the receiving groove, the connecting rod is connected to the connecting seat, and the buffer block is fixedly connected to the connecting rod. The buffer block is elliptical and is disposed between the two through grooves; wherein: the other end of the cable passes through one through groove of the rotating roller, wraps around the circumference of the buffer block, passes through the other through groove of the rotating roller, and then wraps around the circumference of the rotating roller.

[0007] In some implementations, the buffer block is elliptical.

[0008] In some embodiments, the tensile testing mechanism further includes a width measuring component, which comprises: a placement frame connected to the support wall, a rotating component connected to the placement frame, the placement frame having a through hole through which the other end of the cable passes and is wound around the circumference of the rotating roller; a through ring and an elastic ring, the through ring being disposed within the through hole, and the elastic ring being embedded between the through ring and the inner wall of the through hole; and a steering component, including a bearing, a first elastic element, a crossbar, and a second elastic element, the bearing having an outer ring and an inner ring that rotate in opposite directions, the inner ring of the bearing being fixedly connected to the placement frame, both ends of the first elastic element being connected to the outer ring of the bearing and the placement frame respectively, one end of the crossbar being fixedly connected to the outer ring of the bearing, one end of the second elastic element being fixedly connected to the other end of the crossbar, and the other end of the second elastic element being connected to the placement frame.

[0009] In some embodiments, the placement frame has a downward-facing cavity; the tensile testing mechanism further includes a measuring element, which includes a frame-type measuring plate, rollers, a hanging rod, and a measuring component, wherein: the hanging rod is fixedly connected to the cavity of the placement frame; the frame-type measuring plate is inverted U-shaped and is suspended from the cavity of the placement frame by the hanging rod; the rollers are rotatably connected to the bottom of the frame-type measuring plate and pass through the side wall of the through hole to contact the circumferential surface of the cable passing through the through hole; the measuring component is connected to the placement frame for testing the movement range of the frame-type measuring plate.

[0010] In some embodiments, the tensile testing mechanism further includes a gravity component, which includes a fixed rod, a gravity cylinder, and a vertical rod. The two ends of the fixed rod are respectively fixedly connected to the top of the frame measuring plate and the gravity cylinder, and the vertical rod is fixedly connected to the top of the placement frame and passes through the gravity cylinder.

[0011] In some embodiments, the tensile testing mechanism further includes a linear motion component and a limiting component. The linear motion component is fixedly connected to the drive source, and the limiting component includes a limiting plate. The bottom of the limiting plate is fixedly connected to the top of the linear motion component, and the second elastic element is connected to the top of the limiting plate.

[0012] In some embodiments, the auxiliary simulation mechanism further includes a mounting base connected to the top surface of the support wall, the laser emitter and laser receiver both connected to the outer wall of the mounting base, and a counting component connected to the top of the mounting base.

[0013] In some embodiments, the auxiliary simulation mechanism further includes a linear motion unit comprising a guide rail, a driver, and a guide plate. Two guide rails are connected side-by-side at intervals to the top surface of the support wall, and the guide plate is adaptedly disposed between the two guide rails. The driver is fixedly connected to the support wall and has two telescopic portions connected to the guide plate. The airflow simulation component includes an airflow output component and a pipe. The airflow output component is connected to the guide plate, and a nozzle is provided at the top of the guide plate. The pipe connects the nozzle to the airflow output component. The adhesion simulation component includes a telescopic component, a telescopic shaft, an adjustable rod, a third elastic element, and a pressure block. The telescopic component is connected to the guide plate, the telescopic shaft is movably connected to the telescopic component, the adjustable rod is connected to the top end of the telescopic shaft, the third elastic element is connected to the other end of the adjustable rod away from the telescopic shaft, and the top of the pressure block is connected to the third elastic element.

[0014] In some embodiments, the falling object simulation component includes an airflow guiding component, a guiding box, a connecting frame, and a powder screen. The connecting frame is located on the top of the working box, the powder screen is connected to the bottom of the connecting frame, and the top of the working box has a hole adapted to the size of the powder screen. The airflow guiding component is connected to the top of the connecting frame, the guiding box is connected to the connecting frame and located on top of the powder screen, the auxiliary simulation mechanism includes a storage component, the storage component includes filter holes, and at least a portion of the working box has filter holes.

[0015] The power cable tensile strength testing device provided in this application integrates a tensile testing mechanism and an auxiliary simulation mechanism, enabling simultaneous testing of cable tensile strength and combined testing with various environmental simulations. The tensile testing mechanism applies tension to the cable via a rotating component and measures the tensile force in real time using a smart sensor (i.e., a force sensor). The auxiliary simulation mechanism simulates real-world conditions such as wind, accumulation of adhering substances, and impact from falling objects, thereby comprehensively evaluating the cable's performance in actual use and improving the accuracy and reliability of the test. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of the power cable tensile strength testing device 10 in one or more embodiments of this application is shown; Figure 2 It shows Figure 1 A structural diagram from a second perspective; Figure 3 It shows Figure 1 A structural diagram from a third-person perspective; Figure 4 It shows Figure 1 Internal structure diagram of the work box 100; Figure 5 It shows Figure 4 Another structural diagram from a different perspective; Figure 6 A schematic diagram of the clamping member 210 is shown; Figure 7 A partial structural assembly diagram of the tensile testing mechanism 200 is shown; Figure 8 It shows Figure 7 A schematic diagram of the rotating component in the diagram; Figure 9 A schematic diagram of the clamping member 270 is shown; Figure 10 and Figure 11 A schematic diagram of the measuring element 280 in two states is shown; Figure 12 It shows Figure 5 Enlarged view of point B; Figure 13 An assembly diagram of the laser receiver 320 and the laser emitter 330 is shown; Figure 14 A schematic diagram of the linear motion unit 350 and the airflow simulation element 360 is shown. Figure 15 It shows Figure 4 Enlarged view of point A in the middle; Figure 16 A schematic diagram of the structure of the falling object simulation component 380 is shown.

[0018] Explanation of reference numerals in the attached figures: 10. Power cable tensile strength testing device; 100. Working box; 110. Support wall; 200. Tensile testing mechanism; 210. Clamping component; 211. Electric gripper; 212. Power unit; 220. Force sensor; 230. Fixing plate; 240. Linear motion component; 241. Slide rail; 242. Electric slide table; 243. Connecting rod; 250. Rotating component; 251. Drive source; 252. Rotating roller; 253. Vent hole; 254. Receiving groove; 255. Through groove; 260. Width measuring component; 261. Through hole; 2611. Through ring; 2612. Elastic ring; 262. Placement rack; 263. 2631. Steering component; 2632. Bearing; 2633. First elastic component; 2634. Crossbar; 2635. Second elastic component; 270. Clamping component; 271. Connecting component; 272. Buffer block; 273. Connecting seat; 280. Measuring component; 281. Frame-type measuring plate; 282. Roller; 283. Hanging rod; 284. Measuring part; 290. Gravity component; 291. Fixing rod; 292. Gravity cylinder; 293. Vertical rod; 2011. Limiting component; 2111. Limiting ring; 2112. Limiting rod; 2113. Limiting plate; 300. Auxiliary simulation mechanism; 310. Mounting base; 320. Laser receiver; 321. Output device; 322. Laser element; 330. Laser emitter; 331. Drive circuit board; 332. Photosensitive element; 340. Counting component; 350. Linear motion unit; 351. Guide rail; 352. Driver; 353. Guide plate; 360. Airflow simulation component; 361. Airflow output component; 362. Pipe; 363. Nozzle; 70. Adhesive simulation component; 371. Telescopic component; 372. Telescopic shaft; 373. Adjustable rod; 374. Third elastic component; 375. Pressure block; 380. Falling object simulation component; 381. Airflow guiding component; 382. Guiding box; 383. Connecting frame; 3831. Connecting box; 3832. Connecting buckle; 3833. Mounting frame; 384. Powder sieve; 390. Storage component; 391. Filter hole; 392. Storage box; 393. Storage door; 400. Door frame; 500. Control components; 600. Warning light. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0021] The power cable tensile strength testing device in the relevant technology has at least the following problems when in use: First, traditional tensile testing devices can usually only perform a single tensile test, which makes it difficult to truly simulate the complex environmental stresses that cables experience in actual use, such as the combined effects of multiple factors like wind, snow adhesion, and foreign object impact. This leads to discrepancies between the test results and the performance under actual working conditions.

[0022] Secondly, real-time monitoring of cable diameter changes during tensile testing is a challenge. Existing measurement methods may involve direct contact with the cable, which can easily lead to friction or interference when the cable moves or vibrates, thus affecting the accuracy of deformation measurement data and making it difficult to accurately reflect subtle cable deformations. Furthermore, the fixed structure of some testing devices makes it difficult to flexibly adjust the tensile angle or the position and method of action of environmental simulation components, which limits their adaptability to different installation scenarios and different testing requirements, such as simulating specific wind directions and local compression, thus reducing the coverage and practicality of the tests.

[0023] Ultimately, many aspects of the testing process, such as clamping, loading, environmental simulation, and data acquisition, may rely on manual operation and coordination, lacking unified control. This not only increases the complexity of the operation but may also introduce human error, affecting testing efficiency and the consistency of results.

[0024] To address the aforementioned technical issues, this application provides a power cable tensile strength testing device that can provide sufficient test accuracy for cable testing.

[0025] Figure 1 A schematic diagram of the structure of the power cable tensile strength testing device 10 according to one or more embodiments of this application is shown. Figure 2 It shows Figure 1 A structural diagram from a second perspective. Figure 3 It shows Figure 1 A structural diagram from a third-person perspective. Combined with... Figure 1 , Figure 2 as well as Figure 3 The power cable tensile strength testing device 10 provided in this application includes a working box 100, a tensile testing mechanism 200, and an auxiliary simulation mechanism 300. The tensile testing mechanism 200 is used to pull the cable to perform tensile testing on the cable. The auxiliary simulation mechanism 300 is used to simulate the complex environmental stress that the cable is subjected to in actual use. The tensile testing mechanism 200 and the auxiliary simulation mechanism 300 are used in conjunction to improve the accuracy and reliability of cable tensile testing.

[0026] In some embodiments, given adequate internal space, the work box 100 may be circular or other shapes for installation to meet the customer's requirements for a desired circular shape. The work box 100 in this application may take different shapes, and this application does not impose any limitations. Alternatively, the work box 100 may be in the form of a base only, with other devices attached to the work box 100 mounted using additional support frames.

[0027] Figure 4 It shows Figure 1 A schematic diagram of the internal structure of the work box 100 in the diagram. Figure 5 It shows Figure 4 A structural diagram from another perspective. Combined with... Figure 4 as well as Figure 5 The bottom of the work box 100 is configured as a support wall. The tensile testing mechanism 200 is built into the work box 100 and mounted on the top surface of the support wall. The auxiliary simulation mechanism 300 includes a laser emitter 330, a laser receiver 320, an adhesive simulater 370, an airflow simulater 360, and a falling object simulater 380. The laser emitter 330, laser receiver 320, adhesive simulater 370, and airflow simulater 360 are mounted on the top surface of the support wall, and the falling object simulater 380 is located on the top surface of the work box 100 (see [reference]). Figure 1 The specific details of the tensile testing mechanism 200 and the auxiliary simulation mechanism 300 are now further described with reference to the accompanying drawings.

[0028] Combination Figure 4 The tensile testing mechanism 200 includes a clamping member 210, a force sensor 220, and a rotating member 250. The force sensor 220 is connected to a support wall and has a detection part. The clamping member 210 is connected to the detection part of the force sensor 220. The rotating member 250 is connected to the support wall. The rotating member 250 and the clamping member 210 are arranged opposite to each other along a first direction. The rotating member 250 includes a drive source 251 and a rotating roller 252. The rotating roller 252 is connected to the drive source 251. One end of the cable is connected to the clamping member 210, and the other end of the cable is wound around the rotating roller 252. When the power cable tensile force testing device 10 provided in this application is used, the operator places one end of the cable to be tested into the clamping member 210 and clamps it. The other end of the cable is wound around the circumference of the rotating roller 252. During the start-up process of the rotating member 250, the rotating roller 252 rotates, causing the cable to wrap around itself and exert a pulling effect on the cable until the cable is torn.

[0029] Figure 6 A schematic diagram of the clamping member 210 is shown. (Combined with...) Figure 6In some embodiments, the clamping member 210 uses electrical tape or nylon cable ties to fix one end of the cable, which is flexible, cost-effective, and suitable for cables of various shapes and sizes. Alternatively, the cable can be directly wrapped around the clamping member 210, with both ends of the cable being pulled in different directions. The clamping member 210 includes a clamping base 213, grippers 211, and a power component 212. The clamping base 213 is connected to the detection part of the force sensor 220, and the power component 212 is mounted on the clamping base 213. There are two grippers 211, one of which is fixedly mounted on the clamping base 213, and the other gripper 211 is rotatably connected to the clamping base 213. The other gripper 211 is connected to the output part of the power component 212. The power component 212 can be a linear motor, which can drive the other gripper 211 to rotate, so that the two grippers 211 open and close. When the two grippers 211 are closed, one end of the cable is clamped. In addition, the clamping part of the jaws 211 is equipped with an elastic layer, which provides a certain degree of protection for the cable at the clamping position while maintaining clamping. Furthermore, slots can be opened on the opposite sides of the two jaws 211, which can increase the clamping area of ​​the cable, increase the clamping friction, and improve the clamping stability of the cable. On the other hand, it can also more effectively and specifically clamp some large-diameter cables.

[0030] Combination Figure 6 In some embodiments, the force sensor 220 is a strain gauge sensor that measures the force exerted on the cable when it is pulled. The force sensor 220 is erected on the support wall of the work box 100 by a fixing plate 230 to ensure that the force sensor 220 has a suitable installation height. In other embodiments, the force sensor 220 may also be directly fixed to the support wall of the work box 100. This application does not limit this.

[0031] Figure 7 This diagram shows a partial structural assembly of the tensile testing mechanism 200. Figure 8 It shows Figure 7 The structural diagram of the rotating component in the diagram, combined with Figure 7 as well as Figure 8 The rotating component 250 has a driving source 251 with a rotating part, which can be a motor. One side of the rotating roller 252 is connected to the rotating part of the driving source 251, and the other side of the rotating roller 252 has a receiving groove 254. The side wall of the receiving groove has through grooves 255 arranged opposite to each other. The other end of the cable passes through two through grooves 255 in sequence and is wound around the circumference of the rotating roller 252. In some embodiments, the outer wall of the rotating roller 252 has a plurality of vent holes 253. The arrangement of a plurality of vent holes 253 will increase the friction between the outer surface of the rotating roller 252 and the cable. In other embodiments, the rotating roller 252 is polygonal, and the multiple corners of the rotating roller 252 will also increase the friction with the cable. This application does not limit this.

[0032] Figure 9 A structural schematic diagram of the clamping member 270 is shown, combined with Figures 7-9 The tensile testing mechanism 200 also includes a clamping member 270, which includes a connecting rod 271, a connecting seat 273, and a buffer block 272. The connecting seat 273 is disposed in a receiving groove and connected to the bottom of the receiving groove. The connecting rod 271 is rotatably connected to the connecting seat 273. The buffer block 272 is fixedly connected to the connecting rod 271. The buffer block 272 can be elliptical and is disposed between two through slots 255. The other end of the cable passes through one through slot 255 of the rotating roller 252, wraps around the circumference of the buffer block 272, passes through the other through slot 255 of the rotating roller 252, and then wraps around the circumference of the rotating roller 252. In the initial state, the long axis of the buffer block 272 and the two through slots 255 are roughly on the same plane. After the other end of the cable passes through the two through slots 255, the buffer block 272 can rotate synchronously with the connecting rod 271 relative to the connecting seat 273 by controlling the connecting rod 271 to rotate. Then, the position of the long axis of the cable is adjusted so that the long axis is inclined to the plane where the two through slots 255 are located, so that the cable is tensioned.

[0033] Combination Figure 9 In some embodiments, the major axis of the buffer block 272 is slightly smaller than the radius of the receiving cavity, thereby allowing the other end of the cable to be clamped and secured by the buffer block 272 and the sidewall of the receiving cavity. Exemplarily, the outer surface of the buffer block 272 has a certain degree of elasticity to reduce damage to the cable.

[0034] Combination Figure 7 The tensile testing mechanism 200 also includes a width measuring component 260, which comprises a through ring 2611 and an elastic ring 2612. The through ring 2611 is disposed within the through hole 261. The other end of the cable passes through the through ring 2611 and then sequentially through the two through slots 255 of the rotating roller 252. The elastic ring 2612 is embedded between the through ring 2611 and the inner wall of the through hole 261. During the cable testing process, the rotation of the rotating roller 252 continuously pulls on the cable. The through ring 2611 and the elastic ring 2612 buffer the friction between the cable and the through ring 2611, preventing surface wear of the cable.

[0035] Combination Figure 7In some embodiments, the width measuring member 260 further includes a steering member 263 and a placement frame 262. The steering member 263 includes a bearing 2631, a first elastic member 2632, a crossbar 2633, and a second elastic member 2634. The bearing 2631 has an outer ring and an inner ring that rotate relative to each other. The inner ring of the bearing 2631 is fixedly connected to the placement frame 262. The two ends of the first elastic member 2632 are respectively connected to the outer ring of the bearing 2631 and the placement frame 262. One end of the crossbar 2633 is fixedly connected to the outer ring of the bearing 2631. One end of the second elastic member 2634 is fixedly connected to the other end of the crossbar 2633, and the other end of the second elastic member 2634 is connected to the placement frame 262. During cable testing, the rotation of the rotating roller 252 continuously pulls on the cable, causing the cable to exert forces in different directions on the through ring 2611. The elastic ring 2612 buffers the friction between the through ring 2611 and the cable. The through ring 2611 is connected to the inner ring of the bearing 2631 via the placement frame 262, and the outer ring of the bearing 2631 is connected to the crossbar 2633. Therefore, when the cable passes through the through ring 2611 at an angle, the cable drives the placement frame 262 to rotate. Since the first elastic element 2632 is elastically positioned between the placement frame 262 and the outer ring of the bearing 2631, an elastic force can be generated between the placement frame 262 and the outer ring of the bearing 2631, giving the placement frame 262 a reset effect. The crossbar 2633 is connected by the second elastic element 2634, allowing the through hole 261 to swing up and down slightly to match the position of the cable, reducing the impact on the cable testing process. In some other embodiments, the steering element 263 may have only the first elastic element 2632 and the second elastic element 2634 to save on economic costs.

[0036] Figure 10 and Figure 11 The diagram shows the structure of the measuring component 280 in two states. Figure 12 It shows Figure 5 A magnified diagram of point B. (Combined with...) Figures 10-12The tensile testing mechanism 200 also includes a measuring element 280, which includes a frame-type measuring plate 281, rollers 282, a hanging rod 283, and a measuring component 284. A placement frame 262 has a downward-facing cavity. The hanging rod 283 is fixedly connected to the cavity of the placement frame 262. The frame-type measuring plate 281 is inverted U-shaped and is suspended in the cavity of the placement frame 262 by the hanging rod 283. The rollers 282 are rotatably connected to the bottom of the frame-type measuring plate 281. The frame-type measuring plate 281 can only move up and down under the restriction of the hanging rod 283. The rollers 282 pass through the side wall of the through hole 261 to contact the circumference of the cable passing through the through hole 260, so that the frame-type measuring plate 281 contacts the cable through the rollers 282. Additionally, the measuring component 284 is connected to the placement frame 262 for testing the range of motion of the frame-type measuring plate 281. For example, the measuring component 284 is rotatably connected to the placement frame 262, and the measuring component 284 is in frictional contact with the frame measuring plate 281. During the cable's passage through the loop 2611, the cable's diameter at different positions will push the roller 282 and the frame measuring plate 281 to different heights. At this time, with the measuring component 284 in contact with the frame measuring plate 281, the up-and-down movement of the frame measuring plate 281 will drive the measuring component to rotate. The measuring component integrates a rotary encoder, thereby acquiring the up-and-down movement range of the frame measuring plate 281. By comparing this with the height of the frame measuring plate 281 under normal cable dimensions, the diameter of the cable located in the loop 2611 can be measured. The roller 282 contacts the cable in a rolling manner, reducing friction between the cable and the measuring component 280 and improving the accuracy of the measurement data. In some other embodiments, the frame measuring plate 281 and the measuring component 284 are spaced apart. The frame measuring plate 281 has a scale on the side facing the measuring component 284. The measuring component 284 is fixedly installed and is a camera component. During the up-and-down movement of the frame measuring plate 281, the measuring component 284 can obtain the up-and-down movement range of the frame measuring plate 281. Then, by combining the height of the frame measuring plate 281 under the normal size of the cable, the diameter of the cable located in the through loop 2611 at this time can be measured.

[0037] Combination Figures 10-12In some embodiments, a gravity member 290 is also connected to the top of the frame measuring plate 281. The gravity member 290 includes a fixed rod 291, a gravity cylinder 292, and a vertical rod 293. The two ends of the fixed rod 291 are fixedly connected to the top of the frame measuring plate 281 and the gravity cylinder 292, respectively. The vertical rod 293 is fixedly connected to the top of the placement frame 262 and passes through the gravity cylinder 292. With this configuration, the gravity cylinder 292 adds weight to the frame measuring plate 281, thereby maintaining the continuous downward pressure of the frame measuring plate 281 on the cable and maintaining the measurement effect on the cable. The insertion of the hanging rod 283 and the vertical rod 293 further limits the range of motion of the frame measuring plate 281. For example, the top of the fixed rod 291 is restricted by the inner top of the placement frame 262, and the height of the vertical rod 293 is higher than the inner top of the placement frame 262, thereby preventing the gravity cylinder 292 from falling out of the vertical rod 293.

[0038] Combination Figure 5 and Figure 7 In some embodiments, the tensile testing mechanism 200 further includes a linear motion component 240 and a limiting component 2011. The linear motion component 240 includes a slide rail 241, an electric slide table 242, and a connecting rod 243. The slide rail 241 is connected to the support wall of the work box 100. The electric slide table 242 is slidably connected to the slide rail 241 and is fixedly connected to the drive source 251. The two are connected by the connecting rod 243. The limiting component 2011 includes a limiting plate 2113, a limiting rod 2112, and a limiting ring 2111. The bottom of the limiting plate 2113 is fixedly connected to the top of the slide rail 241. A second elastic element 2634 is connected to the top of the limiting plate 2113. The limiting rod 2112 is fixedly connected to the top of the slide rail 241. 112 is fixedly connected to the top of the limiting plate 2113, and the limiting ring 2111 is fixedly connected to the outer wall of the limiting rod 2112. The limiting ring 2111 is sleeved on the crossbar 2633. With this setting, the limiting ring 2111 can limit the range of motion of the crossbar 2633, preventing the crossbar 2633 from moving too much due to the cable, and preventing the cable from getting tangled on the width measuring piece 260. The electric slide table 242 is powered on and moves on the slide rail 241. The movement of the electric slide table 242 drives the drive source 251 to move up and down repeatedly, thereby changing the position of the rotating piece 250 when it is tangled on the cable, simulating the cable being pulled at more angles, and also increasing the simulation effect of the cable.

[0039] Combination Figure 4 as well as Figure 5An auxiliary simulation mechanism 300 is disposed between the clamping member 210 and the rotating member 250. The auxiliary simulation mechanism 300 includes a laser emitter 330, a laser receiver 320, an adhesion simulation member 370, an airflow simulation member 360, and a falling object simulation member 380. The laser emitter 330 and the laser receiver 320 are both connected to the top surface of the support wall, and the emitting part of the laser emitter 330 and the receiving part of the laser receiver 320 are arranged vertically opposite each other. A cable is provided between the emitting part of the laser emitter 330 and the receiving part of the laser receiver 320. Between the receiving parts of component 320; airflow simulation component 360 is connected to the top surface of the support wall, and the air outlet of airflow simulation component 360 is located on the side of the cable in the second direction to blow airflow toward the cable to simulate the wind blowing on the cable during use; adhesive simulation component 370 is connected to the work box 100, and the output part of adhesive simulation component 370 is located above the cable to simulate the situation of impurities adhering to the cable; falling object simulation component 380 is connected to the top of the work box 100 and is used to simulate falling objects under different weather conditions.

[0040] In practice, the emitting part of the laser emitter 330 and the receiving part of the laser receiver 320 are pre-set at the cable insertion position. The cable is located between the laser emitter 330 and the laser receiver 320. When the adhesion simulation component 370 is activated, it can add gravity to the cable, simulating the continuous increase of adhesion on the cable during use. When the airflow simulation component 360 is activated, it blows airflow onto the cable, simulating the impact of airflow on the cable in the display, simulating different levels of wind in nature. When the falling object simulation component 380 is filled with objects of different sizes and materials, it can make them impact the cable from above, thus simulating the impact that the cable receives in nature.

[0041] Figure 13 An assembly diagram of the laser receiver 320 and the laser emitter 330 is shown, in conjunction with... Figure 13In some embodiments, the laser receiver 320 includes a laser element 322 and an output device 321. The laser element 322 is connected to the top of the output device 321 and is configured as the receiving part of the laser receiver 320. The laser emitter 330 includes a photosensitive element 332 and a driving circuit board 331. The driving circuit board 331 is connected to the bottom of the photosensitive element 332 and is configured as the emitting part of the laser emitter 330. The auxiliary simulation mechanism 300 also includes a mounting base 310. Both the laser emitter 330 and the laser receiver 320 are connected to... The mounting base 310 is attached to the outer wall of the work box 100 and connected to the support wall. A counting component 340 is connected to the top of the mounting base 310. This configuration allows the mounting base 310 to be moved to adjust its position. Before cable testing, the drive circuit board 331 and the laser element 322 are positioned on the upper and lower sides of the cable. The counting component 340 records when the cable deviates from its position. This recording, in conjunction with the airflow simulation component 360, records the cable's wind resistance. The linear motion component 240 only moves the cable up and down and does not cause the cable to deviate from the drive circuit board 331 and the laser element 322. Exemplarily, the mounting base 310, laser emitter 330, laser receiver 320, and counting component 340 are all bolted together. The laser element 322 and the output device 321 are electrically connected, as are the drive circuit board 331 and the photosensitive element 332. This allows for positional adjustments to adapt to the production environment, and this application does not impose any limitations on this.

[0042] Figure 14 A schematic diagram of the linear motion unit 350 and the airflow simulation element 360 is shown, combined with Figure 14 In some embodiments, the linear motion unit 350 includes a guide rail 351 (combined with...) Figure 4 The drive 352 and guide plate 353 are connected side-by-side and spaced apart to the support wall of the work box 100. The guide plate 353 is adapted to be disposed between the two guide rails 351. The drive 352 is fixedly connected to the support wall of the work box 100. The drive 352 has two telescopic parts. The two telescopic parts of the drive 352 are connected to the guide plate 353. When the drive 352 is activated by a command, the two telescopic parts of the drive 352 drive the guide plate 353 to slide between the two guide rails 351.

[0043] Combination Figure 14The airflow simulation component 360 includes an airflow output component 361 and a pipe 362. The airflow output component 361 is connected to a guide plate 353, and a nozzle 363 is provided on the top of the guide plate 353. The pipe 362 connects the nozzle 363 to the airflow output component 361. During cable testing, the airflow output component 361 is energized to draw in external air, which is then conveyed through the pipe 362 and ejected from the nozzle 363. The nozzle 363 is positioned corresponding to the cable and is connected to the guide plate 353 by bolts, facilitating height adjustment to accommodate the cable position. The airflow generated by the nozzle 363 impacts the cable, simulating the wind blowing conditions experienced by the cable in nature. Alternatively, the nozzle 363 can be arranged in multiple rows or a rectangular configuration to increase the cable's wind-receiving area. Alternatively, an air bladder can be installed on the outer wall of the pipe 362, and a solenoid valve can be installed on the nozzle 363. The solenoid valve is controlled to open intermittently. For example, the solenoid valve closes the nozzle 363 for five seconds and then opens for three seconds. During this time, the elasticity of the airbag on the pipe 362 can increase the impact force of the airflow and change the impact mode of the airflow, simulating the blowing of different wind levels in nature. Of course, the airflow output component 361 can adjust the rotation force of the internal fan blades to blow out wind of different levels. This application does not impose any restrictions. With the setting of the airbag on the pipe 362, it simulates the wind blowing of varying strengths in reality. During the simulated wind blowing process, the driver 352 is powered on and starts moving on the guide rail 351, thereby changing the position of the airflow simulation component 360 and blowing airflow out of the cable from different positions. Alternatively, the setting direction of the linear motion unit 350 can be perpendicular to the cable, and the airflow simulation component 360 blows air gradually away from and towards the cable. The linear motion unit 350 can also be tilted. This application does not impose any restrictions on this.

[0044] Figure 15 It shows Figure 4 Enlarged view of point A in the middle. (Combined with...) Figure 14 as well as Figure 15In some embodiments, the direction of movement of the guide plate 353 in the linear motion unit 350 is parallel or nearly parallel to the cable located between the clamping member 210 and the rotating member 250. The adhesive simulation member 370 includes a telescopic member 371, a telescopic shaft 372, an adjustable rod 373, a third elastic member 374, and a pressure block 375. The telescopic member 371 is connected to the guide plate 353, the telescopic shaft 372 is movably connected to the telescopic member 371, the adjustable rod 373 is connected to the top end of the telescopic shaft 372, the third elastic member 374 is connected to the other end of the adjustable rod 373 away from the telescopic shaft 372, and the top of the pressure block 375 is connected to the third elastic member 374. In specific implementations, the preset height of the pressure block 375 is higher than the height of the cable. When component 371 is powered on, it drives the telescopic shaft 372 to extend and retract. Under the transmission of the adjustable rod 373 and the third elastic element 374, the pressure block 375 presses down on the cable, simulating the increasing amount of adhesive on the cable in nature. In other embodiments, the linear motion unit 350 can be set perpendicular to the cable. In this case, the pressure block 375 is spherical. The linear motion unit 350 drives the adhesive simulation element 370 to move closer and further away in coordination with the up and down movement of the pressure block 375, thereby simulating the cable being squeezed by other cables and hit by birds in reality. Of course, the elasticity of the third elastic element 374 varies in this application, and the force of the pressure block 375 pressing on the cable also varies. This application does not impose any limitations and can vary according to the actual simulation situation. Figure 16 A structural schematic diagram of the falling object simulation component 380 is shown, combined with... Figure 1 as well as Figure 16In some embodiments, the falling object simulation component 380 includes an airflow guiding component 381, a guiding box 382, ​​a connecting frame 383, and a powder sieve 384. The connecting frame 383 is disposed on the top of the working box 100, and the powder sieve 384 is connected to the bottom of the connecting frame 383. The top of the working box 100 has a hole adapted to the size of the powder sieve 384. The airflow guiding component 381 is connected to the top of the connecting frame 383, and the guiding box 382 is connected to the connecting frame 383 and located at the top of the powder sieve 384. The connecting frame 383 includes a connecting box 3831, a connecting buckle 3832, and a mounting frame 3833. The mounting frame 3833 is connected to the top of the working box 100 at the location of the hole. The connecting buckle 3832 is fixedly connected to the bottom of the connecting box 3831. The connecting box 3831 is snapped onto the outer wall of the mounting frame 3833 by the connecting buckle 3832. In specific implementations, the guiding box 382 may contain... Solid objects are used to simulate hail, the natural weather that has the greatest impact on cables. When the airflow guiding component 381 is powered on, it blows air downwards, guiding solid objects out through multiple holes in the powder screen 384. The size of the solid objects is smaller than the aperture of the powder screen 384 and the filter hole 391. The solid objects impact the cable, simulating the impact of hail in nature. In other embodiments, water or ice sand can be added to the guiding box 382 and discharged onto the cable under the guidance of the airflow guiding component 381. In this case, the filter hole 391 is adapted to be recessed in the middle to facilitate the flow of water. During the test, the installation height of other devices remains unchanged. When using ice sand to simulate, the simulation of the airflow simulation component 360 is paused to prevent the airflow from blowing off the ice sand, simulating the accumulation of ice and snow on the cable when encountering snow. Of course, other materials can be added to the guiding box 382 to simulate the required scenario, and this application does not impose any restrictions. Combination Figure 1 and Figure 2 In some embodiments, the auxiliary simulation mechanism 300 includes a storage component 390, which includes a filter hole 391, a storage box 392, and a storage door 393. The bottom of the working box 100 is at least partially provided with the filter hole 391. The storage box 392 is connected to the bottom of the working box 100, and the storage door 393 is operably connected to the storage box 392. The storage box 392 is located at the bottom of the working box 100. Waste generated during the simulation process is stored in the storage box 392 after passing through the filter hole 391, which is convenient for subsequent use. Combination Figures 1-3In some embodiments, a door frame 400 is rotatably connected to the work box 100, a control element 500 is also connected to the work box 100, and a warning light 600 is connected to the top of the work box 100. In specific implementations, the door frame 400 is made of transparent material in the middle to facilitate internal observation. The control element 500 can control the start and stop of various devices in this application, and can also set fixed operating programs to start a fixed operating process with one key. For example, when ice slush is added to the guide box 382, ​​the control element 500 controls the corresponding device to start, the pull-off test mechanism 200 normally pulls and measures the cable, and the airflow simulator 360 and the adhesion simulator 370... The device is not activated to prevent the simulated ice and snow accumulated on its cable from falling off. In other embodiments, the control element 500 collects the detection data of the cable from each device. For example, the detection data of the width measuring device 260 is fed back to the control element 500. When the detection data of the width measuring device 260 is less than or greater than a certain value, the control element 500 activates the warning light 600 to flash. The detection data of the laser emitter 330 and the laser receiver 320 are fed back to the control element 500. When the deviation exceeds a certain time, the control element 500 activates the warning light 600 to flash as a reminder. Of course, the control element 500 can control each device to start individually, and this application does not limit this. Comprehensive Testing Capabilities: This device integrates a tensile testing mechanism 200 and an auxiliary simulation mechanism 300, enabling simultaneous testing of cable tensile strength and combined testing with various environmental simulations. The tensile testing mechanism 200 applies tension to the cable via a rotating component 250 and measures the tensile force in real time using a force sensor 220. The auxiliary simulation mechanism 300 simulates real-world conditions such as wind, buildup of adhering substances, and impact from falling objects, thereby comprehensively evaluating the cable's performance in actual use and improving the accuracy and reliability of the tests.

[0045] Deformation Monitoring: Through the cooperation of width measuring component 260 and measuring component 280, the device can monitor the diameter change of the cable under tensile force in real time. Measuring component 280 adopts a frame-type measuring plate 281 and roller 282 structure to reduce friction with the cable and reduce interference with test results. At the same time, the deformation data of the cable is recorded by measuring component 284 and compared with the preset diameter to accurately detect the degree of cable deformation, providing reliable data for cable durability assessment.

[0046] Flexible environmental simulation: The auxiliary simulation mechanism 300 includes an airflow simulator 360, an adhesion simulator 370, and a falling object simulator 380, which can flexibly simulate various environmental conditions. The airflow simulator 360 simulates different levels of wind by adjusting the airflow output component 361 and the nozzle 363; the adhesion simulator 370 applies pressure through the pressure block 375 to simulate the adhesion of impurities on the cable or external compression; the falling object simulator 380 adds solid or liquid objects through the guide box 382 to simulate the impact of falling objects such as hail and snow, thereby enhancing the realism and applicability of the test.

[0047] Adjustable test parameters: The linear motion component 240 and linear motion unit 350 in the device allow for adjustment of the position of the test components. For example, the linear motion component 240 drives the rotating component 250 to move up and down, simulating tension at different angles; the linear motion unit 350 drives the airflow simulator 360 and the adhesion simulator 370 to move, applying environmental influences from different positions. This flexibility enables the device to adapt to various test scenarios, improving the test coverage.

[0048] Convenient and safe operation: The work box 100 is equipped with a door frame 400 and a control element 500. The door frame 400 is made of transparent material for easy observation of the testing process. The control element 500 can centrally control the start and stop of each device and has preset operating programs to simplify the operation process. In addition, warning lights flash when the test data is abnormal to promptly remind the operator and ensure testing safety.

[0049] Economy and adaptability: The work box 100 can be in different shapes, such as circular or base-only, to adapt to different installation needs; the clamping parts 210 provide a variety of fixing methods, such as electric grippers 211, electrical tape, etc., which are suitable for cables of different sizes and types, reducing costs and improving adaptability.

[0050] Waste handling efficiency: The storage unit 390 is located at the bottom of the working box 100. Waste generated during the test, such as simulated falling debris, is collected through the filter hole 391. The storage door 393 facilitates cleaning and recycling, reducing maintenance costs.

[0051] Structural stability and protection: The clamping component 210 uses an electric gripper 211 and an elastic layer design to provide protection when clamping the cable and avoid damage to the cable surface; the rotating component 250 enhances the friction with the cable through the clamping component 270 and the vent 253 to ensure the stability of the applied tension; the width measuring component 260 reduces interference with the cable through the steering component 263 and the elastic component, improving the accuracy of test data.

[0052] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0054] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0055] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0056] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A device for testing the tensile strength of power cables, characterized in that, The testing apparatus includes: The work box (100) has a bottom configured as a support wall; A tensile testing mechanism (200) is built into the work box (100). The tensile testing mechanism (200) includes a clamping member (210), a force sensor (220), and a rotating member (250). The force sensor (220) is connected to the support wall and has a detection part. The clamping member (210) is connected to the detection part of the force sensor (220). The rotating member (250) is connected to the support wall. The rotating member (250) and the clamping member (210) are arranged opposite to each other along a first direction. The rotating member (250) includes a drive source (251) and a rotating roller (252) with rotation. The rotating roller (252) is connected to the drive source (251). One end of the cable is connected to the clamping member (210), and the other end of the cable is wound around the rotating roller (252). An auxiliary simulation mechanism (300) is disposed between the clamping member (210) and the rotating member (250). The auxiliary simulation mechanism (300) includes a laser emitting member (330), a laser receiving member (320), an adhesion simulation member (370), an airflow simulation member (360), and a falling object simulation member (380), wherein: The laser emitter (330) and the laser receiver (320) are both connected to the top surface of the support wall, and the emitting part of the laser emitter (330) and the receiving part of the laser receiver (320) are arranged vertically opposite each other. The cable is arranged between the emitting part of the laser emitter (330) and the receiving part of the laser receiver (320). The airflow simulation component (360) is connected to the top surface of the support wall, and the air outlet of the airflow simulation component (360) is located on the side of the cable along the second direction to blow airflow toward the cable to simulate the wind blowing on the cable during use. The adhesion simulation component (370) is connected to the work box (100), and the output part of the adhesion simulation component (370) is located above the cable to simulate the situation of impurities adhering to the cable; The falling object simulator (380) is connected to the top of the work box (100) and is used to simulate falling objects under different weather conditions.

2. The power cable tensile strength testing device according to claim 1, characterized in that, The rotating roller (252) has a receiving groove (254), and the side wall of the receiving groove (254) has oppositely arranged through grooves (255). The tensile testing mechanism (200) further includes a clamping component (270), which includes a connecting rod (271), a connecting seat (273), and a buffer block (272). The connecting seat (273) is connected to the bottom of the receiving groove, the connecting rod (271) is connected to the connecting seat (273), and the buffer block (272) is fixedly connected to the connecting rod (271) and disposed between the two through grooves (255); wherein: The other end of the cable passes through one slot (255) of the rotating roller and wraps around the circumference of the buffer block (272). After passing through another slot (255) of the rotating roller (252), it is wrapped around the circumference of the rotating roller (252).

3. The power cable tensile strength testing device according to claim 2, characterized in that, The buffer block (272) is elliptical.

4. The power cable tensile strength testing device according to claim 1, characterized in that, The tensile testing mechanism (200) further includes a width measuring element (260), which comprises: The placement frame (260) is connected to the support wall, and the rotating component (250) is connected to the placement frame (260). The placement frame (260) is provided with a through hole (261). The other end of the cable passes through the through hole (261) and is wound around the circumference of the rotating roller (252). The passage ring (2611) is disposed within the passage hole (261), and the elastic ring (2612) is embedded between the passage ring (2611) and the inner wall of the passage hole (261). The steering component (263) includes a bearing (2631), a first elastic element (2632), a crossbar (2633), and a second elastic element (2634). The bearing (2631) has an outer ring and an inner ring that rotate in opposite directions. The inner ring of the bearing (2631) is fixedly connected to the placement frame (262). Both ends of the first elastic element (2632) are respectively connected to the outer ring of the bearing (2631) and the placement frame (262). One end of the crossbar (2633) is fixedly connected to the outer ring of the bearing (2631). One end of the second elastic element (2634) is fixedly connected to the other end of the crossbar (2633), and the other end of the second elastic element (2634) is connected to the placement frame.

5. The power cable tensile strength testing device according to claim 4, characterized in that, The placement rack (262) has a cavity with an opening facing downwards; The tensile testing mechanism (200) further includes a measuring component (280), which includes a frame measuring plate (281), a roller (282), a hanging rod (283), and a measuring component (284). The hanging rod (283) is fixedly connected to the cavity of the placement frame (262). The frame measuring plate (281) is U-shaped and is suspended in the cavity of the placement frame (262) by the hanging rod (283). The roller (282) is rotatably connected to the bottom of the frame measuring plate (281) and passes through the side wall of the through hole (260) to contact the circumferential surface of the cable passing through the through hole (260). The measuring component (284) is connected to the placement frame (262) to test the movement range of the frame measuring plate (281).

6. The power cable tensile strength testing device according to claim 5, characterized in that, The tensile testing mechanism (200) also includes a gravity component (290), which includes a fixed rod (291), a gravity cylinder (292), and a vertical rod (293). The two ends of the fixed rod (291) are fixedly connected to the top of the frame measuring plate (281) and the gravity cylinder (292), respectively. The vertical rod (293) is fixedly connected to the top of the placement frame (262) and passes through the gravity cylinder (292).

7. The power cable tensile strength testing device according to claim 4, characterized in that, The tensile testing mechanism (200) further includes a linear motion component (240) and a limiting component (2011). The linear motion component (240) is fixedly connected to the drive source (251). The limiting component (2011) includes a limiting plate (2113). The bottom of the limiting plate (2113) is fixedly connected to the top of the linear motion component (240). The second elastic element (2634) is connected to the top of the limiting plate (2113).

8. A power cable tensile strength testing device according to any one of claims 1-7, characterized in that, The auxiliary simulation mechanism (300) also includes a mounting base (310), which is connected to the top surface of the support wall. The laser emitter (330) and the laser receiver (320) are both connected to the outer wall of the mounting base (310), and a counting component (340) is connected to the top of the mounting base (310).

9. The power cable tensile strength testing device according to claim 8, characterized in that, The auxiliary simulation mechanism (300) further includes a linear motion unit (350), which includes a guide rail (351), a driver (352), and a guide plate (353). The two guide rails (351) are connected side by side at intervals to the top surface of the support wall. The guide plate (353) is adapted to be disposed between the two guide rails (351). The driver (352) is fixedly connected to the support wall. The driver (352) has two telescopic parts, and the two telescopic parts of the driver (352) are connected to the guide plate (353). The airflow simulation component (360) includes an airflow output component (361) and a pipe (362). The airflow output component (361) is connected to the guide plate (353). The top of the guide plate (353) is provided with a nozzle (363). The pipe (362) connects the nozzle (363) and the airflow output component (361). The adhesive simulation component (370) includes a telescopic component (371), a telescopic shaft (372), an adjustable rod (373), a third elastic element (374), and a pressure block (375). The telescopic component (371) is connected to a guide plate (353), the telescopic shaft (372) is movably connected to the telescopic component (371), the adjustable rod (373) is connected to the top end of the telescopic shaft (372), the third elastic element (374) is connected to the other end of the adjustable rod (373) away from the telescopic shaft (372), and the top of the pressure block (375) is connected to the third elastic element (374).

10. A power cable tensile strength testing device according to any one of claims 1-7, characterized in that, The falling object simulation component (380) includes an airflow guiding component (381), a guiding box (382), a connecting frame (383), and a powder screen (384). The connecting frame (383) is located on the top of the working box (100), and the powder screen (384) is connected to the bottom of the connecting frame (383). The top of the working box (100) has a hole adapted to the size of the powder screen (384). The airflow guiding component (381) is connected to the top of the connecting frame (383), and the guiding box (382) is connected to the connecting frame (383) and located at the top of the powder screen (384). The auxiliary simulation mechanism (300) includes a storage component (390), and the storage component (390) includes a filter hole (391). At least a portion of the working box (100) has a filter hole (391).

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