Power distribution network cable fault detection device

Abstract

The invention relates to the technical field of cable fault detection, and discloses a power distribution network cable fault detection device. Comprising an upper assembling mechanism and a lower assembling mechanism, a mounting mechanism is connected between the upper assembling mechanism and the lower assembling mechanism, a signal transmission module and a controller are mounted on the inner side of the lower assembling mechanism, and a balancing weight is mounted at the bottom end of the lower assembling mechanism; through the arrangement of the upper assembling mechanism, the base, the side arm, the detection assembly and the mounting mechanism, a driving roller rolls on a steel wire to drive the whole device to move on the steel wire, a detection sensor rolls on a cable, and the detection sensor rolls to inspect the outer surface of the cable; whether the surface of the cable is damaged or not can be detected for the photoelectric sensor through the detection sensor, so that the position of a fault point in the cable is judged, automatic patrol is performed, the signal is transmitted to the mobile terminal through the signal transmission module, the environmental influence is less, and the cable can be used without manual proficiency and installation.

Description

Technical Field

[0002] This invention relates to the field of cable fault detection technology, specifically to a power distribution network cable fault detection device. Background Technology

[0003] Cables are crucial media for transmitting electrical signals and information, primarily and widely used in power, defense, construction, transportation, communications, automotive, and chemical industries. The normal operation of cable systems provides essential foundational support for modern industrial production and social functioning. With the increasing intelligence of power grids, power cables are widely used in urban underground power grids and submarine transmission networks. However, as the service life of cables increases, the probability of failure also rises. Factors such as installation wear during cable line construction and long-term corrosion in the application environment all pose risks of cable failure. Troubleshooting requires significant manpower and resources. Failure to promptly resolve faults can lead to substantial economic losses and adverse social impacts.

[0004] Traditional power distribution network cable fault detection devices mostly rely on manual inspection, or even use drones to carry the detection devices. However, in actual use, manual inspection is quite troublesome. When using drones or other mobile devices to carry the detection devices, firstly, it is inconvenient to operate, requiring skilled operation of drones and other mobile devices, which increases the cost of human expertise. Secondly, it is easily affected by the environment. It is not convenient to use in windy or rainy conditions. Moreover, the detection methods equipped are mainly for detecting cables with identified fault points, making it difficult to locate the fault point.

[0005] To address the aforementioned issues, this application proposes a power distribution network cable fault detection device. Summary of the Invention

[0006] The purpose of this invention is to provide a power distribution network cable fault detection device to solve the problems mentioned in the background art, such as the need for skilled human operation of mobile equipment, the significant impact of the environment, and the difficulty in locating fault points.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a power distribution network cable fault detection device, comprising an upper assembly mechanism and a lower assembly mechanism, wherein an installation mechanism is connected between the upper assembly mechanism and the lower assembly mechanism, a signal transmission module and a controller are installed inside the lower assembly mechanism, and a counterweight is installed at the bottom of the lower assembly mechanism; The upper assembly mechanism includes a top shell, a rolling assembly, and a drive assembly. The top shell has an inner groove for mounting the rolling assembly, and the drive assembly is mounted on the rolling assembly. The lower assembly mechanism includes a base, side arms, and a detection component. Two side arms are fixedly connected to the top of the base in a symmetrical manner, and the detection component is fixedly connected between the two side arms. The installation mechanism includes a telescopic component, a first connecting component, and a second connecting component. Two sliding grooves are symmetrically opened on the inner side of the top shell. The telescopic component is fixedly connected to the inner side of the sliding groove. The first connecting component is installed on the side of the telescopic component at the left end, and the second connecting component is installed on the side of the telescopic component at the right end. The side of the first connecting component away from the telescopic component is connected to the side arm at the left end.

[0008] Furthermore, the rolling assembly includes a rotating rod A and a drive roller. The rotating rod A is rotatably connected to the inner side of the mounting groove of the top shell via a rotating shaft, and the drive roller is fixedly connected to the outer side of the rotating rod A.

[0009] Furthermore, the drive assembly includes a motor, a worm gear, and a worm wheel. The worm wheel is fixedly connected to the outer side of the rotating rod A, and the worm gear meshes with the outer side of the worm wheel. The motor is fixedly connected to one end of the worm gear, and one side of the motor is fixedly connected to the inner sidewall of the mounting groove.

[0010] Furthermore, the detection assembly includes a rotating rod B, a connector, a rotating rod C, a rotating sleeve A, a rotating sleeve B, a detection sensor, a contact end, a contact seat, and a baffle. The rotating rod B is fixedly connected to the right end of the side arm located at the right end. The connector is fixedly connected to the inner side of the rotating rod B, and the connector penetrates the surface of the rotating rod B. The rotating rod C is fixedly connected to the right end of the connector. The rotating sleeve A is fixedly connected to the outer side of the connector. The rotating sleeve B is rotatably connected to the outer side of the rotating sleeve A. A plurality of detection sensors are fixedly connected to the outer ring of the rotating sleeve B. The detection sensors are arranged sequentially from left to right around the circumference of the rotating sleeve B. The contact end is fixedly connected to the inner side of the detection sensor and penetrates the surface of the rotating sleeve B. The contact seat is fixedly connected to the inner side of the rotating sleeve A at the position corresponding to the contact end. The end of the contact end away from the detection sensor is slidably connected to the contact seat. The rotating sleeve B is provided with baffles on both the left and right sides. The inner side of the baffle at the left end is fixedly connected to the rotating rod B, and the inner side of the baffle at the right end is fixedly connected to the rotating rod C.

[0011] Furthermore, the telescopic assembly includes a slide rod, a slider, a spring B, and a synchronizing rod. The slide rod is fixedly connected to the inner side of the groove of the top shell, and the slider is slidably connected to the outer side of the slide rod. The bottom end of the slider is fixedly connected to the inner wall of the groove, and the synchronizing rod is fixedly connected between the inner sides of the two springs B.

[0012] Furthermore, the first connecting assembly includes a mounting block A, a mounting bracket A, a pull rod, a locking block, and a torsion spring B. The left end of the slider located at the left end is fixedly connected to the mounting block A. The left end of the mounting block A is rotatably connected to the mounting bracket A via a rotating shaft. The pull rod is slidably connected to the inner side of the mounting block A. The pull rod passes through the surface of the mounting block A. The bottom end of the pull rod is fixedly connected to the locking block. The top end of the locking block is fixedly connected to the mounting block A. The torsion spring B is located at the circumferential position of the pull rod. A limiting groove is formed on the left side of the bottom end of the top shell. The movement trajectory of the locking block is linear, and the limiting groove is located on the movement trajectory of the locking block. The right side of the bottom end of the mounting bracket A is rotatably connected to the side arm located at the left end via a rotating shaft.

[0013] Furthermore, the second connecting assembly includes a mounting block B, a mounting bracket B, a ferrule, a push block, and a spring C. The right end of the slider is fixedly connected to the mounting block B, and the right end of the mounting block B is rotatably connected to the mounting bracket B via a rotating shaft. A connecting hole is provided on the inner side of the side arm located at the right end, and the ferrule is slidably connected to the inner wall of the connecting hole. The left end of the ferrule is fixedly connected to the push block, and the right end of the push block is fixedly connected to the side arm located at the right end. A fixing hole is provided on the inner side of the side arm, and the movement trajectory of the ferrule is linear. The fixing hole is located on the movement trajectory of the ferrule, and the outer side of the mounting bracket B is slidably connected to the ferrule.

[0014] Furthermore, the lower assembly mechanism also includes a dual inspection component, which is installed on the side arm located at the right end. The dual inspection component includes an extension rod, an extension slider, spring A, an extension turntable, and a torsion spring A. A "T"-shaped extension rod is fixedly connected to the top of the side arm located at the right end. The extension slider is slidably connected to the outside of the extension rod. Spring A is fixedly connected between the top of the extension slider and the extension rod. The bottom of the extension slider is rotatably connected to the extension turntable via a rotating shaft. Torsion spring A is fixedly connected between the top of the extension turntable and the extension slider.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, through its upper assembly mechanism, base, side arm, detection component, and installation mechanism, uses a worm gear to drive the rotating rod A to rotate, which in turn drives the active roller to roll. The active roller rolls on the steel wire, and due to the elastic force of spring B, the active roller and the steel wire are tightly fitted together. The rolling of the active roller on the steel wire causes the entire device to move on the steel wire, and also causes the detection sensor to roll on the cable. The rolling of the detection sensor inspects the surface of the cable. The detection sensor can be used to check whether there is any damage to the cable surface, thereby determining the location of the fault point in the cable section. The operation is simple, and the inspection is automatic. The inspection is performed by "scanning". The distance that the active roller rolls on the steel wire is matched with the scanning distance of the detection sensor to determine the fault point and feed it back to the controller. Then, it is sent to the mobile terminal through the signal transmission module. It is less affected by the environment, requires no manual skill, and can be used immediately after installation.

[0016] 2. This invention, through the setting of a dual-inspection assembly, places the active roller on a steel wire, and the cable can be placed between two sets of inspection assemblies. There is a connecting buckle between the steel wire and the cable. When the device passes the connecting buckle, the active roller continues to rotate, driving the device to move along the steel wire. The upper inspection assembly is restricted by the connecting buckle, causing the upper inspection assembly to rotate on the expansion slider via the expansion turntable. After passing the connecting buckle, the torque of the torsion spring A drives the upper inspection assembly to rotate again above the cable. Because the expansion slider can slide on the expansion rod, the torque of the torsion spring A is relatively large, thus allowing the upper inspection assembly to rotate above the cable. The pushing force of the spring A and the self-weight of the inspection assembly can make the upper inspection assembly fit against the upper side of the cable, performing a double-sided inspection. This inspection is more accurate and detailed, and can be carried out according to different cable damage conditions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the power distribution network cable fault detection device of the present invention; Figure 2 This is a schematic diagram of the installation structure of the rolling assembly of a power distribution network cable fault detection device according to the present invention; Figure 3 This is a top view of the installation structure of the drive assembly of a power distribution network cable fault detection device according to the present invention; Figure 4 This is a schematic diagram of the installation structure of the detection component of a power distribution network cable fault detection device according to the present invention; Figure 5 This is a schematic diagram of the installation structure of the telescopic component of a power distribution network cable fault detection device according to the present invention; Figure 6 This is a schematic diagram of the installation structure of the first connecting component of a power distribution network cable fault detection device according to the present invention. Figure 7This is a schematic diagram of the installation structure of the second connecting component of a power distribution network cable fault detection device according to the present invention; Figure 8 This is a schematic diagram of the overall structure of Embodiment 2 of the power distribution network cable fault detection device of the present invention; Figure 9 This is a schematic diagram of the installation structure of the dual-detection component of a power distribution network cable fault detection device according to the present invention; In the picture: 1. Upper assembly mechanism; 11. Top shell; 12. Rolling assembly; 121. Rotor A; 122. Drive roller; 13. Drive assembly; 131. Motor; 132. Worm gear; 133. Worm wheel; 2. Lower assembly mechanism; 21. Base; 22. Side arm; 23. Detection assembly; 231. Rotating rod B; 232. Connector; 233. Rotating rod C; 234. Rotating sleeve A; 235. Rotating sleeve B; 236. Detection sensor; 237. Contact end; 238. Contact seat; 239. Baffle; 24. Dual detection assembly; 241. Extension rod; 242. Extension slider; 243. Spring A; 244. Extension turntable; 245. Torsion spring A; 3. Mounting mechanism; 31. Telescopic assembly; 311. Slide rod; 312. Slider; 313. Spring B; 314. Synchronizing rod; 32. First connecting assembly; 321. Mounting block A; 322. Mounting bracket A; 323. Pull rod; 324. Locking block; 325. Torsion spring B; 33. Second connecting assembly; 331. Mounting block B; 332. Mounting bracket B; 333. Sleeve; 334. Push block; 335. Spring C; 4. Counterweight; 5. Signal transmission module; 6. Controller. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] All standard parts used in this application can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the prior art. The components used for circuit connection are all conventional models in the prior art.

[0020] Meanwhile, in order to clearly express the connection relationship and working principle between the components and highlight the key points, the accompanying drawings in the instruction manual are organized and drawn in the form of simplified diagrams. One simplified diagram can correspond to multiple materials and actual external structural shapes.

[0021] Example 1 Please see Figures 1-7 The present invention provides a technical solution: a power distribution network cable fault detection device, including an upper assembly mechanism 1 and a lower assembly mechanism 2, an installation mechanism 3 connecting the upper assembly mechanism 1 and the lower assembly mechanism 2, a signal transmission module 5 and a controller 6 installed inside the lower assembly mechanism 2, and a counterweight 4 installed at the bottom of the lower assembly mechanism 2. The upper assembly mechanism 1 includes a top shell 11, a rolling assembly 12 and a drive assembly 13. The top shell 11 has an inner groove for mounting the rolling assembly 12, and the drive assembly 13 is mounted on the rolling assembly 12. The lower assembly mechanism 2 includes a base 21, side arms 22 and a detection component 23. The top of the base 21 has two side arms 22 fixedly connected symmetrically to the left and right, and the detection component 23 is fixedly connected between the two side arms 22. The mounting mechanism 3 includes a telescopic component 31, a first connecting component 32, and a second connecting component 33. Two symmetrical sliding grooves are formed on the inner side of the top shell 11. The telescopic component 31 is fixedly connected to the inner side of these grooves. The first connecting component 32 is installed on one side of the telescopic component 31 at the left end, and the second connecting component 33 is installed on one side of the telescopic component 31 at the right end. The side of the first connecting component 32 away from the telescopic component 31 is connected to the side arm 22 at the left end. The motor 131 drives the worm gear 132 to rotate, which in turn drives the worm wheel 133 to rotate. The worm wheel 133 drives the rotating rod A121 to rotate, which in turn drives the active roller 122 to roll. The active roller 122 rolls on the steel wire. Due to the elastic force of the spring B313, the active roller 122 is in close contact with the steel wire. The rolling of the active roller 122 on the steel wire causes the entire device to move on the steel wire, and also enables the detection sensor... The device 236 rolls on the cable, and the rolling of the detection sensor 236 inspects the cable surface. The detection sensor 236 can check the cable surface for damage by using a photoelectric sensor, thereby determining the location of the fault point in the cable section. The operation is simple and automatic. The inspection is carried out by "scanning". The distance that the active roller 122 rolls on the steel wire is matched with the scanning of the detection sensor 236 to determine the fault point and feed it back to the controller 6. Then, it is sent to the mobile terminal through the signal transmission module 5. The counterweight 4 is installed below the lower assembly mechanism 2. In addition to the concave setting of the active roller 122 and the detection sensor 236 to limit the device and keep it vertical, the counterweight 4 lowers the center of gravity of the device and makes the center of gravity of the device, the steel wire and the cable are aligned in a straight line, making the device more stable when inspecting cables.

[0022] The rolling assembly 12 includes a rotating rod A121 and a drive roller 122. The rotating rod A121 is rotatably connected to the inner side of the mounting groove of the top shell 11 via a rotating shaft, and the drive roller 122 is fixedly connected to the outer side of the rotating rod A121.

[0023] Drive assembly 13 includes a motor 131, a worm gear 132, and a worm wheel 133. The worm wheel 133 is fixedly connected to the outer side of the rotating rod A121, and the worm gear 132 meshes with the outer side of the worm wheel 133. One end of the worm gear 132 is fixedly connected to the motor 131, and one side of the motor 131 is fixedly connected to the inner wall of the mounting groove. When the motor 131 runs, it drives the worm gear 132 to rotate, which in turn drives the worm wheel 133 to rotate. The worm wheel 133 then drives the rotating rod A121 to rotate, which in turn drives the drive roller 122 to roll. The drive roller 122 rolls on the steel wire. Because of the elastic force of spring B313, the drive roller 122 is tightly attached to the steel wire. The synchronizing rod 314 is used to move the two sliders 312 upward synchronously to maintain the stability of the device. The drive roller 122 rolls on the steel wire, driving the entire device to move on the steel wire, and causing the detection sensor 236 to roll on the cable. The rolling of the detection sensor 236 performs an inspection of the cable surface. The detection sensor 236 can be used to check whether there is any damage to the cable surface for the photoelectric sensor, thereby determining the location of the fault point in the cable section.

[0024] The detection assembly 23 includes a rotating rod B231, a connector 232, a rotating rod C233, a rotating sleeve A234, a rotating sleeve B235, a detection sensor 236, a contact end 237, a contact seat 238, and a baffle 239. The rotating rod B231 is fixedly connected to the right end of the side arm 22 located at the right end. The connector 232 is fixedly connected to the inner side of the rotating rod B231, penetrating the surface of the rotating rod B231. The rotating rod C233 is fixedly connected to the right end of the connector 232. The rotating sleeve A234 is fixedly connected to the outer side of the connector 232. The rotating sleeve B235 is rotatably connected to the outer side of the rotating sleeve A234. Several detection sensors 236 are fixedly connected to the outer circumference of the rotating sleeve B235, arranged sequentially from left to right around the perimeter of the rotating sleeve B235. The contact end 237 is fixedly connected to the inner side of each detection sensor 236, penetrating the surface of the rotating sleeve B235. The rotating sleeve A234 corresponds to... Contact seats 238 are fixedly connected to the inner side of each contact end 237. The end of the contact end 237 away from the detection sensor 236 is slidably connected to the contact seat 238. Baffles 239 are provided on both the left and right sides of the rotating sleeve B235. The inner side of the baffle 239 at the left end is fixedly connected to the rotating rod B231, and the inner side of the baffle 239 at the right end is fixedly connected to the rotating rod C233. When the detection sensor 236 rolls to check, it drives the rotating sleeve B235 to rotate on the rotating sleeve A234. The two baffles 239 limit the rotating sleeve B235 to prevent it from falling off. The contact end 237 is always in sliding contact with the corresponding contact seat 238. The signal of the detection sensor 236 is transmitted to the contact seat 238 through the contact end 237. The contact seat 238 is traversed by a wire, which passes through the inside of the connector 232 and is connected to the controller 6, thereby facilitating the rolling operation of the detection sensor 236.

[0025] The telescopic assembly 31 includes a slide rod 311, a slider 312, a spring B313, and a synchronizing rod 314. The slide rod 311 is fixedly connected to the inner side of the groove of the top shell 11, and the slider 312 is slidably connected to the outer side of the slide rod 311. A spring B313 is fixedly connected to the bottom end of the slider 312 and the inner wall of the groove. A synchronizing rod 314 is fixedly connected between the inner sides of the two springs B313. Holding the upper assembly mechanism 1 and pulling down the lower assembly mechanism 2 causes the base 21 to pull the side arm 22 downwards, moving the locking block 324 to the bottom of the top shell 11. The torque of the torsion spring B325 causes the locking block 324 to rotate to the right and align with the limiting groove. Then, releasing the base 21 allows the spring B313 to push the slider 312... The slider 311 slides upward, and the slider 312 drives the mounting block A321 upward. The locking block 324 hooks into the limiting groove, thereby limiting the slider 312 and keeping the upper assembly mechanism 1 and the lower assembly mechanism 2 unfolded. Then, the base 21 is pulled down, so that the locking block 324 separates from the limiting groove of the top shell 11. The base 21 is released, so that the spring B313 pushes the slider 312 upward. The synchronizing rod 314 is used for the synchronous upward movement of the two sliders 312 to maintain the stability of the device. The slider 312 moves upward, which drives the mounting bracket A322 upward through the mounting block A321. The mounting bracket A322 drives the detection component 23 upward through the side arm 22, so that the detection sensor 236 is in contact with the cable.

[0026] The first connecting assembly 32 includes a mounting block A321, a mounting bracket A322, a pull rod 323, a locking block 324, and a torsion spring B325. The left end of the slider 312 is fixedly connected to the mounting block A321. The left end of the mounting block A321 is rotatably connected to the mounting bracket A322 via a rotating shaft. The pull rod 323 is slidably connected to the inner side of the mounting block A321, penetrating the surface of the mounting block A321. The bottom end of the pull rod 323 is fixedly connected to the locking block 324. The top end of the locking block 324 is fixedly connected to the mounting block A321, and the torsion spring B325 is fixedly connected between the top end of the locking block 324 and the mounting block A321. The torsion spring B325 is positioned circumferentially on the pull rod 323. A limiting groove is formed on the left side of the bottom end of the top shell 11. The movement trajectory of the locking block 324 is linear, and the limiting groove is located on the movement trajectory of the locking block 324. On the track, the bottom right side of the mounting bracket A322 is rotatably connected to the side arm 22 located at the left end via a pivot. Holding the upper assembly mechanism 1, pulling down the lower assembly mechanism 2 causes the base 21 to pull the side arm 22 downward. The side arm 22 moves downward via the mounting bracket A322, and the mounting bracket A322 drives the locking block 324 downward via the mounting block A321. The locking block 324 moves to the bottom of the top shell 11. The torque of the torsion spring B325 drives the locking block 324 to rotate to the right and align with the limiting groove. Then, the base 21 is released, so that the spring B313 pushes the slider 312 to slide upward on the slide rod 311. The slider 312 drives the mounting block A321 upward, and the locking block 324 hooks into the limiting groove, thereby limiting the slider 312 and completing the unfolding of the upper assembly mechanism 1 and the lower assembly mechanism 2.

[0027] The second connecting assembly 33 includes a mounting block B331, a mounting bracket B332, a retaining sleeve 333, a push block 334, and a spring C335. The mounting block B331 is fixedly connected to the right end of the slider 312. The mounting bracket B332 is rotatably connected to the right end of the mounting block B331 via a pivot. A connecting hole is provided on the inner side of the side arm 22 at the right end. A retaining sleeve 333 is slidably connected to the inner wall of this connecting hole. A push block 334 is fixedly connected to the left end of the retaining sleeve 333. A spring C335 is fixedly connected between the right end of 34 and the side arm 22 located at the right end. Pushing the push block 334 to the right causes the sleeve 333 to move to the right. The short end of the sleeve 333 in the fixing hole extends out of the fixing hole and moves away from the fixing hole. Then, the mounting bracket B332 rotates on the mounting block B331 and separates from the sleeve 333. A fixing hole is opened on the inner side of the side arm 22. The movement trajectory of the sleeve 333 is linear. The fixing hole is set on the movement trajectory of the sleeve 333. The outer side of frame B332 is slidably connected to sleeve 333. The upper assembly mechanism 1 is placed above the steel wire of the cable, and the lower assembly mechanism 2 is placed below the cable. The active roller 122 is aligned with the steel wire, and the concave surface of the active roller 122 is in contact with the surface of the steel wire. The concave surface of the detection sensor 236 is close to the cable. Then, the base 21 is pulled down, so that the locking block 324 is separated from the limiting groove of the top shell 11. The base 21 is released, so that the spring B313 pushes the slider 312 upward. The slider 312 moves upward, which drives the mounting frame A322 upward through the mounting block A321. The mounting frame A322 drives the detection component 23 upward through the side arm 22, so that the detection sensor 236 is in contact with the cable. Then, the mounting frame B332 is rotated and placed inside the sleeve 333 on the mounting block B331. Then, the spring C335 pushes the push block 334, which causes the sleeve 333 to limit the mounting frame B332. However, the mounting frame B332 can be limited in the sleeve 333, thus completing the installation of the device.

[0028] Example 2 Please see Figure 8 and Figure 9This invention provides a technical solution: a power distribution network cable fault detection device. The lower assembly mechanism 2 further includes a dual detection component 24, which is installed on the right-end side arm 22. The dual detection component 24 includes an extension rod 241, an extension slider 242, a spring A243, an extension turntable 244, and a torsion spring A245. A "T"-shaped extension rod 241 is fixedly connected to the top of the right-end side arm 22. An extension slider 242 is slidably connected to the outside of the extension rod 241. A spring A243 is fixedly connected between the top of the extension slider 242 and the extension rod 241. An extension turntable 244 is rotatably connected to the bottom of the extension slider 242 via a rotating shaft. A torsion spring A245 is fixedly connected between the top of the extension turntable 244 and the extension slider 242. When using the device, after separating and holding the upper assembly mechanism 1 and the lower assembly mechanism 2, the separation mounting bracket B332 is rotated to move the active roller 122. The cable can be placed between two sets of detection components 23 on a steel wire. There is a connecting buckle between the steel wire and the cable. When the device passes the connecting buckle, the drive roller 122 continues to rotate, driving the device to move along the steel wire. The upper detection component 23 is restricted by the connecting buckle, so that the upper detection component 23 rotates on the expansion slider 242 through the expansion turntable 244. After passing the connecting buckle, the torque of the torsion spring A245 drives the upper detection component 23 to rotate above the cable again. Because the expansion slider 242 can slide on the expansion rod 241, the torque of the torsion spring A245 is large, which allows the upper detection component 23 to rotate above the cable. The pushing force of the spring A243 and the weight of the detection component 23 can make the upper detection component 23 fit against the upper side of the cable for double-sided inspection. This inspection is more accurate and detailed, and can be carried out according to different cable damage conditions.

[0029] Working principle: When using the device, hold the upper assembly mechanism 1 and pull down the lower assembly mechanism 2. The base 21 pulls the side arm 22 downward. The side arm 22 moves downward via the mounting bracket A322. The mounting bracket A322, through the mounting block A321, drives the locking block 324 downward. The locking block 324 moves to the bottom of the top shell 11. The torque of the torsion spring B325 drives the locking block 324 to rotate to the right and align with the limiting groove. Then, release the base 21, causing the spring B313 to push the slider 312 to slide upward on the slide rod 311. The slider 312 drives the mounting block A321 upward, and the locking block 324 hooks into the limiting groove, thus limiting the slider 312. With the upper assembly mechanism 1 and lower assembly mechanism 2 extended, push the push block 334 to the right, causing the ferrule 333 to move to the right. The short end of the ferrule 333 in the fixing hole extends out of the fixing hole and moves away from the fixing hole. Then, the mounting bracket B332 rotates on the mounting block B331 to separate from the ferrule 333. Next, the upper assembly mechanism 1 is placed above the steel wire of the cable, and the lower assembly mechanism 2 is placed below the cable. The drive roller 122 is aligned with the steel wire, and the concave surface of the drive roller 122 is in contact with the surface of the steel wire. The concave surface of the detection sensor 236 is close to the cable. Then, pull the base 21 down, causing the ferrule 324 to separate from the limiting groove of the top shell 11. Release the base 21. Spring B313 pushes slider 312 upward, which in turn drives mounting bracket A322 upward via mounting block A321. Mounting bracket A322 then drives detection component 23 upward via side arm 22, causing detection sensor 236 to contact the cable. Next, mounting bracket B332 is rotated within the retaining sleeve 333 on mounting block B331. Spring C335 then pushes push block 334, causing retaining sleeve 333 to limit mounting bracket B332, although mounting bracket B332 can remain within retaining sleeve 333, thus completing the installation of the device. Then, motor 131 drives worm gear 132 to rotate, which in turn drives worm wheel 13... 3. Rotation: The worm gear 133 drives the rotating rod A121 to rotate, which in turn drives the drive roller 122 to roll. The drive roller 122 rolls on the steel wire. Due to the elastic force of the spring B313, the drive roller 122 is in close contact with the steel wire. The rolling of the drive roller 122 on the steel wire drives the entire device to move on the steel wire, and also causes the detection sensor 236 to roll on the cable. The rolling of the detection sensor 236 performs an inspection on the surface of the cable. The detection sensor 236 can be used to check whether there is any damage to the surface of the cable for the photoelectric sensor, thereby determining the location of the fault point in the cable section. The operation is simple, and the inspection is automatic. The inspection is performed by "scanning".

[0030] The distance the active roller 122 rolls on the steel wire is matched with the scanning distance of the detection sensor 236 to determine the fault point and feed it back to the controller 6. Then, it is sent to the mobile terminal through the signal transmission module 5. The counterweight 4 is installed below the lower assembly mechanism 2. In addition to the active roller 122 and the detection sensor 236 having concave surfaces to limit the device and keep it vertical, the counterweight 4 lowers the center of gravity of the device and makes the center of gravity of the device aligned with the steel wire and cable, making the device more stable when inspecting cables. When the detection sensor 236 rolls to inspect, it drives the rotating sleeve B235 to rotate on the rotating sleeve A234. The two baffles 239 limit the rotating sleeve B235 to prevent it from falling off. The contact end 237 always slides in contact with the corresponding contact seat 238. The signal of the detection sensor 236 is transmitted to the contact seat 238 through the contact end 237. The contact seat 238 is traversed by a wire that passes through the inside of the connector 232 and connects to the controller 6, thus facilitating the rolling operation of the detection sensor 236.

Claims

1. A power distribution network cable fault detection device, characterized in that: It includes an upper assembly mechanism (1) and a lower assembly mechanism (2), with an installation mechanism (3) connecting the upper assembly mechanism (1) and the lower assembly mechanism (2). A signal transmission module (5) and a controller (6) are installed inside the lower assembly mechanism (2), and a counterweight (4) is installed at the bottom of the lower assembly mechanism (2). The upper assembly mechanism (1) includes a top shell (11), a rolling assembly (12) and a drive assembly (13). The top shell (11) has an inner groove for mounting, and the rolling assembly (12) is mounted inside the groove. The drive assembly (13) is mounted on the rolling assembly (12). The lower assembly mechanism (2) includes a base (21), side arms (22) and a detection component (23). The top of the base (21) is symmetrically connected to two side arms (22), and the detection component (23) is fixedly connected between the two side arms (22). The installation mechanism (3) includes a telescopic component (31), a first connecting component (32), and a second connecting component (33). The inner side of the top shell (11) has two sliding grooves that are symmetrically arranged on the left and right sides. The telescopic component (31) is fixedly connected to the inner side of the sliding groove. The first connecting component (32) is installed on the side of the telescopic component (31) located on the left end, and the second connecting component (33) is installed on the side of the telescopic component (31) located on the right end. The side of the first connecting component (32) away from the telescopic component (31) is connected to the side arm (22) located on the left end.

2. The power distribution network cable fault detection device according to claim 1, characterized in that: The rolling assembly (12) includes a rotating rod A (121) and a drive roller (122). The rotating rod A (121) is rotatably connected to the inner side of the mounting groove of the top shell (11) via a rotating shaft, and the drive roller (122) is fixedly connected to the outer side of the rotating rod A (121).

3. The power distribution network cable fault detection device according to claim 2, characterized in that: The drive assembly (13) includes a motor (131), a worm (132) and a worm wheel (133). The worm wheel (133) is fixedly connected to the outside of the rotating rod A (121). The worm (132) is meshed with the outside of the worm wheel (133). The motor (131) is fixedly connected to one end of the worm (132). One side of the motor (131) is fixedly connected to the inner sidewall of the mounting groove.

4. The power distribution network cable fault detection device according to claim 1, characterized in that: The detection component (23) includes a rotating rod B (231), a connector (232), a rotating rod C (233), a rotating sleeve A (234), a rotating sleeve B (235), a detection sensor (236), a contact end (237), a contact seat (238), and a baffle (239). The right end of the side arm (22) located at the right end is fixedly connected to the rotating rod B (231). The connector (232) is fixedly connected to the inner side of the rotating rod B (231). The connector (232) penetrates the surface of the rotating rod B (231). The right end of the connector (232) is fixedly connected to the rotating rod C (233). The outer side of the connector (232) is fixedly connected to the rotating sleeve A (234). The outer side of the rotating sleeve A (234) is rotatably connected to the rotating sleeve B (235). The outer ring of the rotating sleeve B (235) is fixedly connected to several... The detection sensor (236) is arranged from left to right around the circumference of the rotating sleeve B (235). The contact end (237) is fixedly connected to the inner side of the detection sensor (236). The contact end (237) penetrates the surface of the rotating sleeve B (235). The inner side of the rotating sleeve A (234) corresponding to the position of the contact end (237) is fixedly connected to the contact seat (238). The end of the contact end (237) away from the detection sensor (236) is slidably connected to the contact seat (238). The rotating sleeve B (235) is provided with baffles (239) on both the left and right sides. The inner side of the baffle (239) at the left end is fixedly connected to the rotating rod B (231), and the inner side of the baffle (239) at the right end is fixedly connected to the rotating rod C (233).

5. The power distribution network cable fault detection device according to claim 4, characterized in that: The telescopic assembly (31) includes a slide rod (311), a slider (312), a spring B (313), and a synchronizing rod (314). The slide rod (311) is fixedly connected to the inner side of the groove of the top shell (11), and the slider (312) is slidably connected to the outer side of the slide rod (311). The bottom end of the slider (312) is fixedly connected to the inner wall of the groove, and the synchronizing rod (314) is fixedly connected between the inner sides of the two springs B (313).

6. The power distribution network cable fault detection device according to claim 5, characterized in that: The first connecting assembly (32) includes a mounting block A (321), a mounting bracket A (322), a pull rod (323), a locking block (324), and a torsion spring B (325). The left end of the slider (312) located at the left end is fixedly connected to the mounting block A (321). The left end of the mounting block A (321) is rotatably connected to the mounting bracket A (322) via a rotating shaft. The pull rod (323) is slidably connected to the inner side of the mounting block A (321). The pull rod (323) passes through the surface of the mounting block A (321). The bottom end of the mounting bracket (324) is fixedly connected to the locking block (324). The top end of the locking block (324) is fixedly connected to the mounting block A (321) with the torsion spring B (325). The torsion spring B (325) is located in the circumferential position of the pull rod (323). A limiting groove is opened on the left side of the bottom end of the top shell (11). The movement trajectory of the locking block (324) is straight. The limiting groove is located on the movement trajectory of the locking block (324). The bottom right side of the mounting bracket A (322) is rotatably connected to the side arm (22) located on the left end through a rotating shaft.

7. A power distribution network cable fault detection device according to claim 6, characterized in that: The second connecting component (33) includes a mounting block B (331), a mounting bracket B (332), a retainer (333), a push block (334), and a spring C (335). The right end of the slider (312) is fixedly connected to the mounting block B (331). The right end of the mounting block B (331) is rotatably connected to the mounting bracket B (332) via a rotating shaft. A connecting hole is provided on the inner side of the side arm (22) located at the right end. The retainer (333) is slidably connected to the inner wall of the connecting hole. The sleeve (333) has a push block (334) fixedly connected to its left end. The spring C (335) is fixedly connected between the right end of the push block (334) and the side arm (22) located on the right end. A fixing hole is provided on the inner side of the side arm (22). The movement trajectory of the sleeve (333) is straight. The fixing hole is located on the movement trajectory of the sleeve (333). The outer side of the mounting bracket B (332) is slidably connected to the sleeve (333).

8. The power distribution network cable fault detection device according to claim 7, characterized in that: The lower assembly mechanism (2) also includes a double inspection component (24). The double inspection component (24) is installed on the side arm (22) at the right end. The double inspection component (24) includes an extension rod (241), an extension slider (242), a spring A (243), an extension turntable (244), and a torsion spring A (245). A "T"-shaped extension rod (241) is fixedly connected to the top of the side arm (22) at the right end. The extension slider (242) is slidably connected to the outside of the extension rod (241). The spring A (243) is fixedly connected between the top of the extension slider (242) and the extension rod (241). The extension turntable (244) is rotatably connected to the bottom of the extension slider (242) through a rotating shaft. The torsion spring A (245) is fixedly connected between the top of the extension turntable (244) and the extension slider (242).

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