Deterioration detection device for cable insulation layer

Abstract

The invention provides a cable insulation layer degradation detection device. The cable insulation layer degradation detection device comprises a mounting frame body, a limiting structure, a first mounting assembly and a second mounting assembly, at least part of the mounting frame body is movably arranged; the limiting structure is arranged on the mounting frame body and is used for being in contact with the cable, so that the mounting frame body is movably arranged in the extension direction of the cable; the first installation assembly and the second installation assembly are arranged on the installation frame body in the mode of extending in the circumferential direction of the cable, at least parts of the first installation assembly and the second installation assembly are rotatably arranged, the first installation assembly comprises a detection component used for detecting the temperature of the outer surface of the cable, and the second installation assembly comprises a marking component used for marking the temperature of the outer surface of the cable. And the marking component is used for marking a degraded area on the cable detected by the detection component. The problem that in the prior art, the efficiency of detecting the degradation of the cable insulation layer is low is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and more particularly, to a device for detecting the deterioration of a cable insulation layer. Background Art

[0002] At present, in long-distance power transmission systems, tunnel cables, as an important power transmission medium, the health status of their insulation layers is directly related to the safe and stable operation of the power grid. The deterioration of the cable insulation layer refers to the decline in insulation performance and even insulation failure of the cable insulation material during long-term service due to the influence of environmental factors such as insulation material aging, cable moisture absorption, or overheating, which poses a major threat to the safety of the power system. In the prior art, infrared thermal imagers have become a commonly used tool for detecting the deterioration of tunnel cable insulation layers because they can non-contact detect the surface temperature distribution of cables and thus quickly identify potential deterioration problems in the insulation layer.

[0003] However, due to the large length and diameter of the cable, infrared thermal imagers often need to scan in segments and then splice them into a complete image. This process not only takes a long time but also may result in missed scans or repeated scans due to inaccurate positioning, affecting the detection efficiency and the accuracy of the results. Moreover, in traditional detection methods, when the infrared thermal imager identifies the deteriorated area of the cable insulation layer, maintenance personnel need to manually use a marker pen to mark it for subsequent processing. This marking method is not only inefficient but also difficult to ensure the accuracy of the marking position, increasing the complexity and uncertainty of the maintenance work. Summary of the Invention

[0004] The main object of the present invention is to provide a device for detecting the deterioration of a cable insulation layer to solve the problem of low efficiency in detecting the deterioration of the cable insulation layer in the prior art.

[0005] To achieve the above object, according to one aspect of the present invention, there is provided a device for detecting the deterioration of a cable insulation layer, including: a mounting frame body, at least part of which is movably arranged; a limiting structure provided on the mounting frame body and used for contacting the cable so that the mounting frame body is movably arranged along the extending direction of the cable; a first mounting component and a second mounting component respectively arranged on the mounting frame body along the circumferential direction of the cable, at least part of the first mounting component and the second mounting component are respectively rotatably arranged, the first mounting component includes a detection component for detecting the outer surface temperature of the cable, and the second mounting component includes a marking component for marking the deteriorated area on the cable after being detected by the detection component.

[0006] Further, the mounting frame body includes: a fixed block; a first mounting block and a second mounting block, the first mounting component is arranged on the first mounting block, the second mounting component is arranged on the second mounting block, and the first mounting block and the second mounting block are respectively movably arranged relative to the fixed block.

[0007] Further, the mounting frame further includes: a threaded rod, one end of the threaded rod is rotatably connected to the fixed block, and the other end of the threaded rod sequentially passes through threaded holes in the first mounting block and the second mounting block; a first driving component, which is arranged on the second mounting block and is drivingly connected to the threaded rod to drive the first mounting block and the second mounting block to move relative to the fixed block.

[0008] Further, the first mounting assembly includes: a first mounting member, which is connected to the first mounting block; a first rotating member, which is rotatably arranged on the first mounting member, and the detecting component is arranged on the inner side wall of the first rotating member, so that the first rotating member drives the detecting component to detect the outer surface temperature of the cable.

[0009] Further, the first mounting member includes a first arc-shaped plate and a second arc-shaped plate. The first arc-shaped plate is connected to the first mounting block. The first end of the second arc-shaped plate is detachably connected to the first end of the first arc-shaped plate. A first notch is formed between the second end of the second arc-shaped plate and the second end of the first arc-shaped plate for avoiding a cable bracket connected to the cable; wherein, the centers of the circles where the inner wall surfaces of the first arc-shaped plate and the second arc-shaped plate are located are the same.

[0010] Further, a first fitting portion is arranged on the first end of the first arc-shaped plate, and a second fitting portion is arranged on the first end of the second arc-shaped plate. The first fitting portion and the second fitting portion are snap-connected; wherein, one of the first fitting portion and the second fitting portion is a protrusion, and the other of the first fitting portion and the second fitting portion is a groove.

[0011] Further, a camera component is arranged on the second end of the second arc-shaped plate for detecting the environment at the first notch; and / or, a second notch corresponding to the first notch is arranged on the first rotating member for avoiding a cable bracket connected to the cable; and / or, a telescopic member is arranged on the first rotating member, and the top of the telescopic member is telescopically arranged for contacting the outer surface of the cable.

[0012] Further, a first sub-groove and a second sub-groove are respectively arranged on the first arc-shaped plate and the second arc-shaped plate along their extending directions. The first sub-groove and the second sub-groove communicate with each other to form a first sliding groove. A first sliding protrusion is arranged on the first rotating member along its extending direction. The first sliding protrusion extends into the first sliding groove and is movably arranged along the extending direction of the first sliding groove.

[0013] Further, the second mounting assembly includes: a second mounting member, which is connected to the second mounting block; a second rotating member, which is rotatably arranged on the second mounting member, and the marking component is arranged on the inner side wall of the second rotating member. At least part of the marking component is movably arranged towards the outer surface of the cable, so that the second rotating member drives the marking component to mark the outer surface of the cable.

[0014] Furthermore, the second mounting member includes a third curved plate and a fourth curved plate, the third curved plate is connected to the second mounting block, the first end of the fourth curved plate is detachably connected to the first end of the third curved plate, and a third notch is formed between the second end of the fourth curved plate and the second end of the third curved plate to avoid a cable bracket connected to the cable; wherein the center of the circle where the inner wall surface of the third curved plate and the inner wall surface of the fourth curved plate are located is consistent.

[0015] Furthermore, a third matching portion is provided on the first end of the third arc plate, and a fourth matching portion is provided on the first end of the fourth arc plate, and the third matching portion is snap-connected with the fourth matching portion; wherein, one of the third matching portion and the fourth matching portion is a protrusion, and the other of the third matching portion and the fourth matching portion is a groove.

[0016] Furthermore, the third arc plate and the fourth arc plate are respectively provided with a third sub-groove and a fourth sub-groove along their extension direction, the third sub-groove and the fourth sub-groove are interconnected to form a second sliding groove, and the second rotating member is provided with a second sliding protrusion along its extension direction, the second sliding protrusion extends into the second sliding groove and is movably arranged along the extension direction of the second sliding groove.

[0017] Furthermore, the limiting structure includes: two limiting components, which are respectively connected to the first mounting block and the second mounting block, and the limiting components include two contact parts, which are respectively used to cooperate and abut with the outer peripheral surface of the cable, so that the first mounting block or the second mounting block is fixed relative to the cable when the first mounting block or the second mounting block moves to any position relative to the cable.

[0018] Furthermore, the limiting assembly also includes: a second driving component, which is arranged on the first mounting block or the second mounting block, and the output end of the second driving component is telescopically arranged; two first connecting rods, one end of the two first connecting rods is respectively rotatably connected to the output end of the second driving component; two second connecting rods, one end of the two second connecting rods is respectively rotatably connected to the other end of the two first connecting rods, and the other end of the two second connecting rods is respectively rotatably connected to the two contact parts; wherein the contact part includes two relatively arranged arc structures.

[0019] Furthermore, the first rotating member and the second rotating member are both arc-shaped rack structures; the first mounting block is provided with a first drive component that is transmission-connected to the first rotating member, and the second mounting block is provided with a second drive component that is transmission-connected to the second rotating member, and the first drive component and the second drive component are connected for synchronous rotation, so that the first rotating member and the second rotating member are arranged for synchronous rotation.

[0020] Further, the first driving component includes: a first main gear disposed on the first mounting block; a first driven gear and a second driven gear respectively disposed on the first mounting block at intervals and respectively meshed with the first main gear and the first rotating member; and a third driving member disposed on the first mounting block, the output end of the third driving member being connected to the first main gear to drive the first main gear to drive the first rotating member to rotate.

[0021] Further, the second driving component includes: a second main gear disposed on the second mounting block; a third driven gear and a fourth driven gear respectively disposed on the second mounting block at intervals and respectively meshed with the second main gear and the second rotating member; and a connecting shaft, one end of the connecting shaft being connected to the first main gear and the other end of the connecting shaft being connected to the second main gear, so that the third driving member drives the first main gear and the second main gear to rotate synchronously.

[0022] Applying the technical solution of the present invention, a cable insulation layer deterioration detection device is provided, including a mounting frame body, a limiting structure, a first mounting component and a second mounting component; at least a part of the mounting frame body is movably arranged; the limiting structure is arranged on the mounting frame body and is used to contact the cable, so that the mounting frame body is movably arranged along the extension direction of the cable; the first mounting component and the second mounting component are respectively arranged on the mounting frame body extending along the circumferential direction of the cable, at least a part of the first mounting component and the second mounting component are respectively rotatably arranged, the first mounting component includes a detection component for detecting the outer surface temperature of the cable, and the second mounting component includes a marking component for marking the deteriorated area on the cable after being detected by the detection component.

[0023] In this way, under the synergistic action of the mounting frame body and the limiting structure, the first mounting component and the second mounting component can move to any position along the extension direction of the cable and be fixed relative to the cable, ensuring the stability and accuracy of the detection. Through the arrangement of the first mounting component and the second mounting component, the device can realize the synchronous detection and marking. The detection component can detect the outer surface temperature of the cable in real time, so as to judge whether there is an aging problem in the insulation layer of the point to be measured and timely discover the deteriorated area of the insulation layer. When the detection component detects the deterioration of the cable insulation layer, the marking component can immediately mark the area, ensuring the timeliness and accuracy of the marking, and avoiding the errors and inconveniences that may be brought by later manual marking.

[0024] It can be seen that through the precise positioning of the limiting structure and the adaptive design of the first mounting component and the second mounting component, the device can reduce the wear and damage to the cable during the cable detection process, reduce the cost of additional maintenance or replacement of the cable caused by improper operation of the device, and further solve the problem of low efficiency in detecting the deterioration of the cable insulation layer in the prior art. Description of the Drawings

[0025] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0026] Figure 1 It shows a schematic structural diagram of the overall device assembled on a cable provided by an embodiment of a cable insulation layer deterioration detection device according to the present invention;

[0027] Figure 2 It shows a schematic structural diagram of the overall structure provided by an embodiment of a cable insulation layer deterioration detection device according to the present invention;

[0028] Figure 3 It shows a schematic structural diagram of a limiting structure provided by an embodiment of a cable insulation layer deterioration detection device according to the present invention;

[0029] Figure 4 It shows a schematic structural diagram of a partial structure provided by an embodiment of a cable insulation layer deterioration detection device according to the present invention;

[0030] Figure 5 It shows a schematic structural diagram of a first mounting component provided by an embodiment of a cable insulation layer deterioration detection device according to the present invention;

[0031] Figure 6 It shows a schematic structural diagram of a second mounting component provided by an embodiment of a cable insulation layer deterioration detection device according to the present invention;

[0032] Figure 7 It shows a schematic structural diagram of a first mounting member provided by an embodiment of a cable insulation layer deterioration detection device according to the present invention;

[0033] Figure 8 It shows a schematic structural diagram of a second mounting member provided by an embodiment of a cable insulation layer deterioration detection device according to the present invention.

[0034] Among them, the above-mentioned drawings include the following reference numerals:

[0035] 1. Cable;

[0036] 10. Mounting frame; 11. Fixed block; 12. First mounting block; 13. Second mounting block; 14. Threaded rod; 15. First driving component;

[0037] 20. Limiting structure; 21. Limiting component; 210. Contact part; 211. Second driving component; 212. First connecting rod; 213. Second connecting rod;

[0038] 30. First mounting assembly; 31. Detection component; 32. First mounting member; 320. First arc plate; 3201. First mating portion; 3202. First sub-slot; 321. Second arc plate; 3210. Second mating portion; 3211. Camera component; 3212. Second sub-slot; 322. First notch; 323. First sliding groove; 33. First rotating member; 330. Second notch; 331. Telescopic member; 332. First sliding protrusion

[0039] 40. Second mounting assembly; 41. Marking component; 42. Second mounting member; 420. Third arc plate; 4201. Third mating portion; 4202. Third sub-slot; 421. Fourth arc plate; 4210. Fourth mating portion; 4211. Fourth sub-slot; 422. Third notch; 423. Second sliding groove; 43. Second rotating member; 430. Fourth notch; 431. Second sliding protrusion

[0040] 50. First drive assembly; 51. First main gear; 52. First driven gear; 53. Second driven gear; 54. Third drive component

[0041] 60. Second drive assembly; 61. Second main gear; 62. Third driven gear; 63. Fourth driven gear; 64. Connecting shaft Detailed implementation manners

[0042] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments

[0043] To solve the problem of low efficiency in detecting the degradation of the cable insulation layer in the prior art, the present invention provides a cable insulation layer degradation detection device

[0044] Please refer to Figures 1 to 8 As shown, the technical solution of the present invention provides a cable 1 insulation layer degradation device, including a mounting frame 10, a limiting structure 20, a first mounting assembly 30 and a second mounting assembly 40; at least part of the mounting frame 10 is movably arranged; the limiting structure 20 is arranged on the mounting frame 10 and is used to contact the cable 1 so that the mounting frame 10 is movably arranged along the extending direction of the cable 1; the first mounting assembly 30 and the second mounting assembly 40 are respectively arranged on the mounting frame 10 extending along the circumferential direction of the cable 1, and at least part of the first mounting assembly 30 and the second mounting assembly 40 are respectively rotatably arranged. The first mounting assembly 30 includes a detection component 31 for detecting the outer surface temperature of the cable 1, and the second mounting assembly 40 includes a marking component 41 for marking the degraded area on the cable 1 after being detected by the detection component 31

[0045] Applied to the technical solution of this embodiment, under the coordinated action of the mounting frame 10 and the limiting structure 20, the first mounting component 30 and the second mounting component 40 can move to any position along the extension direction of the cable 1 and be fixed relative to the cable 1, ensuring the stability and accuracy of the detection. Through the setting of the first mounting component 30 and the second mounting component 40, the device can realize the synchronous detection and marking. The detection component 31 can detect the outer surface temperature of the cable 1 in real time, so as to judge whether there is an aging problem in the insulating layer at the point to be measured and timely discover the deteriorated area of the insulating layer. When the detection component 31 detects the deterioration of the insulating layer of the cable 1, the marking component 41 can immediately mark this area, ensuring the timeliness and accuracy of the marking and avoiding the possible errors and inconveniences caused by later manual marking. It can be seen that through the precise positioning of the limiting structure 20 and the adaptive design of the first mounting component 30 and the second mounting component 40, the device can reduce the wear and damage to the cable 1 during the detection process, reduce the cost of additional maintenance or replacement of the cable 1 caused by improper operation of the device, and thus solve the problem of low efficiency in detecting the deterioration of the insulating layer of the cable 1 in the prior art.

[0046] In this embodiment, the detection component 31 is an infrared thermal imager. By detecting infrared radiation, the infrared thermal imager can analyze the temperature distribution of the insulating layer of the cable 1 and display different temperature regions through colors, so as to identify possible problems of insulating layer deterioration. The marking component 41 is a marking pen that is telescopically arranged towards the outer surface of the cable 1.

[0047] Specifically, the mounting frame 10 includes a fixed block 11, a first mounting block 12 and a second mounting block 13; the first mounting component 30 is arranged on the first mounting block 12, the second mounting component 40 is arranged on the second mounting block 13, and the first mounting block 12 and the second mounting block 13 are respectively movably arranged relative to the fixed block 11. In this way, the detection component 31 and the marking component 41 can respectively adjust their positions along the extension direction of the cable 1 to ensure accurate detection and marking of the entire surface of the cable 1. Even if there is local deformation of the cable 1, the positions of the first mounting block 12 and the second mounting block 13 can be adjusted to accurately locate the deteriorated area and mark it. There is no need for manual adjustment, and the positioning and detection process of the cable 1 can be completed quickly, thereby improving the overall efficiency of the detection. Especially in the detection of long cables 1 or in complex environments, this automatic adjustment ability is particularly important.

[0048] Specifically, the mounting frame 10 further includes a threaded rod 14 and a first driving component 15; one end of the threaded rod 14 is rotatably connected to the fixed block 11, and the other end of the threaded rod 14 sequentially passes through the threaded holes in the first mounting block 12 and the second mounting block 13; the first driving component 15 is arranged on the second mounting block 13 and is drivingly connected to the threaded rod 14 to drive the first mounting block 12 and the second mounting block 13 to move relative to the fixed block 11. Among them, the first driving component 15 is a stepper motor or other power components. In this way, through the cooperation of the threaded rod 14 and the first driving component 15, the precise movement of the first mounting block 12 and the second mounting block 13 relative to the fixed block 11 can be realized. The characteristics of the thread allow for fine adjustment of the moving distance, ensuring the accuracy of detection and marking, especially important when precise positioning and marking of the insulation layer deterioration position are required. It not only improves the detection efficiency, reduces manual intervention, but also enables the device to quickly adapt to cables 1 of different lengths or detection requirements in different environments, reflecting the automation and intelligence level of the device.

[0049] As Figure 1 and Figure 2 shown, the first mounting assembly 30 includes a first mounting member 32 and a first rotating member 33; the first mounting member 32 is connected to the first mounting block 12; the first rotating member 33 is rotatably arranged on the first mounting member 32, and the detection component 31 is arranged on the inner side wall of the first rotating member 33, so that the first rotating member 33 drives the detection component 31 to detect the outer surface temperature of the cable 1. In this way, the detection component 31 can rotate along the circumferential direction of the cable 1, thereby realizing a comprehensive detection of the outer surface of the cable 1. This can ensure the comprehensiveness and accuracy of the detection, without missing any detection area. Even if there are slight differences in the diameter of the cable 1, compensation can be made through the adaptive adjustment of the first rotating member 33. Compared with the fixed-position detection method, the detection efficiency can be significantly improved. During the detection process, the device does not need to stop and reposition frequently. The detection component 31 can continuously scan the surface of the cable 1, greatly shortening the detection time, realizing efficient, precise and non-destructive detection of the outer surface temperature of the cable 1, and improving the comprehensiveness and accuracy of the detection.

[0050] During the laying of the cable 1, especially in confined spaces such as tunnels, it is necessary to fix it through cable brackets to avoid being damaged by external factors (such as water flow, etc.) or rubbing against other structures, resulting in premature damage or performance degradation.

[0051] Since the device rotates the first rotating member 33 to drive the detection component 31 to detect the surface of the cable 1 during the movement on the cable 1, and the detection component 31 detects the temperature difference by measuring the infrared radiation on the surface of the cable 1, the place covered by the cable support cannot be directly exposed to the air, resulting in that the detection component 31 may not be able to directly measure the temperature change on the surface of the place covered by the cable support, thus making it difficult to detect the deterioration of the cable 1. Therefore, when the detection component 31 detects the surface of the cable 1, since the cable 1 is generally placed horizontally, if the temperature difference is detected on the left and right sides close to the fixed part of the cable support, it means that the cable 1 under the cable support is deteriorated. Generally, when the detection component 31 detects that the temperature of the cable 1 is the ambient temperature + 25 °C, it can be determined that the cable 1 is deteriorated.

[0052] As Figure 5 and Figure 7 shown, the first mounting member 32 includes a first arc plate 320 and a second arc plate 321. The first arc plate 320 is connected to the first mounting block 12. The first end of the second arc plate 321 is detachably connected to the first end of the first arc plate 320. A first notch 322 is formed between the second end of the second arc plate 321 and the second end of the first arc plate 320 for avoiding the cable support connected to the cable 1. Wherein, the centers of the circles where the inner wall surfaces of the first arc plate 320 and the second arc plate 321 are located are the same. In this way, when the device encounters a cable support or other obstacles in the cable 1 wiring during the movement, it can avoid collision with these fixed structures, ensuring the continuous movement of the device and the smooth progress of the detection process. Especially in a complex wiring environment or a narrow space such as a tunnel, this design is particularly crucial, improving the on-site adaptability and detection efficiency of the device.

[0053] Specifically, a first matching portion 3201 is provided at the first end of the first arc plate 320, and a second matching portion 3210 is provided at the first end of the second arc plate 321. The first matching portion 3201 is snap-connected to the second matching portion 3210. Wherein, one of the first matching portion 3201 and the second matching portion 3210 is a protrusion, and the other of the first matching portion 3201 and the second matching portion 3210 is a groove. In this way, when assembly and disassembly are required for use or replacement, this connection method can be quickly separated, greatly saving time and labor costs and improving the maintenance efficiency. At the same time, it can provide sufficient connection strength to ensure the stable combination of the first arc plate 320 and the second arc plate 321 during the detection process. Even when the surface of the cable 1 is uneven or there are small obstacles, the integrity and function of the component can be maintained.

[0054] In this embodiment, the first engaging portion 3201 is a limiting groove structure, and the second engaging portion 3210 is a triangular-shaped flap with certain elasticity and toughness, and is made of a metal material with certain hardness and wear resistance. In order to install the device on the cable 1, first, place the first arc-shaped plate 320 above the cable 1 with one hand, then hold the second arc-shaped plate 321 below the cable 1 with the other hand, and then move the two hands closer to each other so that the flap is inserted into the limiting groove to form a snap structure. When the flap is inserted into the limiting groove, it will undergo a certain deformation, and at the same time, it can withstand the wear and pressure during use, so as to better adapt to the shape of the limiting groove, thereby increasing the stability and reliability between the first arc-shaped plate 320 and the second arc-shaped plate 321.

[0055] In this embodiment, a second notch 330 is provided on the first rotating member 33 corresponding to the first notch 322 for avoiding the cable bracket connected to the cable 1. Similarly, when the device encounters a cable bracket or other obstacles during the wiring of the cable 1 during movement, it can avoid colliding with these fixed structures, ensuring the continuous movement of the device and the smooth progress of the detection process.

[0056] In this embodiment, a telescopic member 331 is provided on the first rotating member 33, and the top of the telescopic member 331 is telescopically arranged for contacting the outer surface of the cable 1. With such a setting, when the device moves on the cable 1, since the diameter of the cable bracket is larger than that of the cable 1, when encountering the cable bracket, the telescopic member 331 on the first rotating member 33 will be compressed; at this time, the first driving component 15 is turned off, and the limiting structure 20 is controlled to contact the outer side wall of the cable 1 so that the device is fixed relative to the cable 1. Also, because the detection component 31 is located below the telescopic member 331, at this time, the detection component 31 is located on the left side of the cable bracket and is close to the cable bracket. Then, control the first rotating member 33 to rotate to drive the detection component 31 to perform temperature detection on the surface of the cable 1 on the left side of the cable bracket.

[0057] In this embodiment, a camera component 3211 is provided at the second end of the second arc-shaped plate 321 for detecting the environment at the first notch 322. With the above setting, when the camera component 3211 irradiates the cable bracket during the movement of the device, the first mounting member 32 is located directly above the cable 1; at this time, the first driving component 15 is turned off, the limiting structure 20 contacts the outer side wall of the cable 1, and the first rotating member 33 is located on the side of the first mounting member 32 away from the second mounting member 42, that is, on the right side of the cable bracket and close to the cable bracket. Then, by controlling the first rotating member 33 to rotate to drive the detection component 31 to make a circular motion around the cable 1, so that the detection component 31 performs temperature detection on the surface of the cable 1 on the right side of the cable bracket. In this way, by detecting the cable 1 on the left and right sides of the cable bracket respectively, it is further determined whether the cable 1 below the cable bracket is deteriorated.

[0058] Specifically, the first arc-shaped plate 320 and the second arc-shaped plate 321 are respectively provided with a first sub-groove 3202 and a second sub-groove 3212 along their extending directions. The first sub-groove 3202 and the second sub-groove 3212 are communicated with each other to form a first sliding groove 323. The first rotating member 33 is provided with a first sliding protrusion 332 along its extending direction. The first sliding protrusion 332 extends into the first sliding groove 323 and is movably arranged along the extending direction of the first sliding groove 323. In this way, the first rotating member 33 can drive the detection component 31 to move along the circumferential direction of the cable 1, so as to flexibly perform an all-round detection on the outer surface of the cable 1. This is crucial for detecting different regions on the cable 1 or avoiding obstacles (such as cable brackets), ensuring the comprehensiveness and accuracy of the detection. And it provides a stable guide for the first rotating member 33 during the sliding process, avoiding the deviation or shaking of the rotating member during movement, ensuring the precise contact between the detection component 31 and the surface of the cable 1, and improving the reliability of the detection data.

[0059] Such as Figure 6 and Figure 8 As shown, the second mounting assembly 40 includes a second mounting member 42 and a second rotating member 43; the second mounting member 42 is connected to the second mounting block 13; the second rotating member 43 is rotatably arranged on the second mounting member 42, and the marking component 41 is arranged on the inner side wall of the second rotating member 43. At least part of the marking component 41 is movably arranged towards the outer surface of the cable 1, so that the second rotating member 43 drives the marking component 41 to mark the outer surface of the cable 1.

[0060] In this way, when the detection component 31 detects that there is a deterioration situation on the cable 1, that is, when the surface temperature of the cable 1 is the ambient temperature ±25°C; generally, in order to ensure better safety performance and the operation reliability of the cable 1, it is necessary to replace the cable core inside the cable 1 starting from a certain distance from the deteriorated position. Furthermore, it is necessary to control the second rotating member 43 to rotate to drive the marking component 41 to mark at a certain distance from the deteriorated position of the cable 1. And because the height of the first mounting block 12 is equal to that of the second mounting block 13 and the lower end surface of the first mounting block 12 contacts the upper end surface of the second mounting block 13 in the initial state, and because the first rotating member 33 and the second rotating member rotate synchronously, and the detection component 31 is located directly above the marking component 41, the detection component 31 and the marking component 41 move synchronously, thus ensuring the accuracy of the marking position.

[0061] Specifically, the second mounting member 42 includes a third arc plate 420 and a fourth arc plate 421. The third arc plate 420 is connected to the second mounting block 13. The first end of the fourth arc plate 421 is detachably connected to the first end of the third arc plate 420. A third notch 422 is formed between the second end of the fourth arc plate 421 and the second end of the third arc plate 420 for avoiding the cable bracket connected to the cable 1. The centers of the circles where the inner wall surfaces of the third arc plate 420 and the fourth arc plate 421 are located are the same. In this way, it is ensured that the second mounting member 42 can meet the detection requirements of cables 1 with different diameters. At the same time, the detachable connection design makes it possible to replace or adjust different arc plates, enhancing the versatility of the detection device and its adaptability to the diversity of on-site cables 1. The setting of the third notch 422 is specifically used to avoid cable brackets or other obstacles during the cable 1 wiring, ensuring that the detection device will not collide with the fixed structure during the movement, avoiding the risk of detection interruption or cable 1 damage, and improving the detection efficiency and operation safety, especially in the tunnel environment with complex cable 1 wiring.

[0062] Specifically, a third mating portion 4201 is provided at the first end of the third arc plate 420, and a fourth mating portion 4210 is provided at the first end of the fourth arc plate 421. The third mating portion 4201 is snap-connected to the fourth mating portion 4210. One of the third mating portion 4201 and the fourth mating portion 4210 is a protrusion, and the other is a groove. In this way, when assembly and disassembly are required for use or replacement, this connection method can be quickly separated, greatly saving time and labor costs and improving the maintenance efficiency. At the same time, it can provide sufficient connection strength to ensure the stable combination of the third arc plate 420 and the fourth arc plate 421 during the detection process. Even when the surface of the cable 1 is uneven or there are small obstacles, the integrity and function of the component can be maintained.

[0063] In this embodiment, the third mating portion 4201 is a limit groove structure, and the fourth mating portion 4210 is a triangular-shaped flap with certain elasticity and toughness and is made of a metal material with certain hardness and wear resistance. In order to install the device on the cable 1, first, place the third arc plate 420 above the cable 1 with one hand, then hold the fourth arc plate 421 below the cable 1 with the other hand, and then move the two hands closer to each other so that the flap is inserted into the limit groove to form a snap structure. When the flap is inserted into the limit groove, it will undergo a certain deformation and can withstand the wear and pressure during use, so as to better adapt to the shape of the limit groove to increase the stability and reliability between the third arc plate 420 and the fourth arc plate 421.

[0064] In this embodiment, a fourth notch 430 is provided on the second rotating member 43 corresponding to the third notch 422 for avoiding the cable bracket connected to the cable 1. Similarly, when the device encounters a cable bracket or other obstacles during cable 1 routing during movement, it can avoid collision with these fixed structures, ensuring the continuous movement of the device and the smooth progress of the detection process.

[0065] Specifically, a third sub-groove 4202 and a fourth sub-groove 4211 are respectively provided on the third arc plate 420 and the fourth arc plate 421 along their extending directions. The third sub-groove 4202 and the fourth sub-groove 4211 communicate with each other to form a second sliding groove 423. A second sliding protrusion 431 is provided on the second rotating member 43 along its extending direction. The second sliding protrusion 431 extends into the second sliding groove 423 and is movably arranged along the extending direction of the second sliding groove 423. In this way, stable guidance is provided for the second rotating member 43, ensuring the stability of the second rotating member 43 during rotation, avoiding the situation of deviation or shaking when the second rotating member 43 rotates relative to the cable 1, enabling the second rotating member 43 to drive the marking component 41 to move along the circumferential direction of the cable 1, so as to accurately mark the deteriorated area on the outer surface of the cable 1 after being detected by the detection component 31, improving the marking accuracy and the reliability of the equipment. This is crucial for marking different areas on the cable 1 or avoiding obstacles (such as cable brackets), ensuring the accuracy of marking and the long-term stable operation of the device.

[0066] As Figures 1 to 4 shown, the limiting structure 20 includes two limiting components 21; the two limiting components 21 are respectively connected to the first mounting block 12 and the second mounting block 13. The limiting component 21 includes two contact parts 210, and the two contact parts 210 are respectively used for cooperating with and abutting against the outer peripheral surface of the cable 1, so that when the first mounting block 12 or the second mounting block 13 moves relative to the cable 1 to any position, the first mounting block 12 or the second mounting block 13 is fixed relative to the cable 1. In this way, the two contact parts 210 cooperate with and abut against the outer peripheral surface of the cable 1, which can provide accurate positioning and fixation, ensuring that the device can move to any preset detection position on the cable 1 and remain stable at this position, which is beneficial to improving the detection accuracy and the reliability of the detection data. Moreover, the design of the limiting component 21 takes into account the change in the diameter of the cable 1, and the two contact parts 210 can be adjusted according to the size of the diameter of the cable 1 to ensure a tight fit with the outer peripheral surface of the cable 1, so that the device can be applicable to cables 1 of various diameters, enhancing its versatility and adaptability.

[0067] Specifically, the limiting assembly 21 further includes a second driving component 211, two first connecting rods 212 and two second connecting rods 213; the second driving component 211 is arranged on the first mounting block 12 or the second mounting block 13, and the output end of the second driving component 211 is telescopically arranged; one end of the two first connecting rods 212 is rotatably connected to the output end of the second driving component 211; one end of the two second connecting rods 213 is rotatably connected to the other end of the two first connecting rods 212, and the other end of the two second connecting rods 213 is rotatably connected to the two contact parts 210; wherein the contact part 210 includes two arc structures arranged opposite to each other. The second driving component 211 is a stepping motor or other power component.

[0068] In this way, by controlling the extension or contraction of the output end of the second driving component 211, the distance between the two contact parts 210 located on both sides of the cable 1 can be adjusted, and they can contact the outer side walls of the cable 1 respectively, so that the limit assembly 21 can be applied to cables 1 with different diameters or cable racks of different sizes. At the same time, the design of the contact part 210 ensures the stable fixation of the device even when the surface of the cable 1 is irregular or slightly bent. This precise limiting capability is crucial to improving the accuracy and reliability of the detection data. In addition, by controlling the movement of the first connecting rod 212 and the second connecting rod 213 through the extension and contraction of the output end of the second driving component 211, the operation process of the limit assembly 21 can be simplified. The operator only needs to control the second driving component 211 to realize the automatic adjustment and fixation of the two contact parts 210, which reduces the difficulty of operation and improves the operation efficiency.

[0069] like Figure 2 and Figure 4 As shown, both the first rotating member 33 and the second rotating member 43 are arc-shaped rack structures; the first mounting block 12 is provided with a first driving assembly 50 that is transmission-connected to the first rotating member 33, and the second mounting block 13 is provided with a second driving assembly 60 that is transmission-connected to the second rotating member 43, and the first driving assembly 50 and the second driving assembly 60 are connected to rotate synchronously, so that the first rotating member 33 and the second rotating member 43 are arranged to rotate synchronously. In this way, through the synchronous transmission of the first driving assembly 50 and the second driving assembly 60, the first rotating member 33 and the second rotating member 43 can maintain precise synchronous rotation, thereby ensuring the consistency of the movement of the detection component 31 and the marking component 41 during the detection process, and improving the accuracy of the marking and the reliability of the detection.

[0070] Specifically, the first driving assembly 50 includes a first main gear 51, a first driven gear 52, a second driven gear 53 and a third driving component 54; the first main gear 51 is arranged on the first mounting block 12; the first driven gear 52 and the second driven gear 53 are respectively arranged on the first mounting block 12 at intervals and are respectively meshed and connected with the first main gear 51 and the first rotating member 33; the third driving component 54 is arranged on the first mounting block 12, and the output end of the third driving component 54 is connected with the first main gear 51 to drive the first main gear 51 to drive the first rotating member 33 to rotate. Wherein, the distance between the first driven gear 52 and the second driven gear 53 is equal to the opening size of the second notch 330 on the first rotating member 33, and the module of the first driven gear 52 and the second driven gear 53 is the same; the third driving component 54 is a stepping motor or other power components. In this way, by adjusting the output speed of the third driving component 54, the rotation speed of the first rotating member 33 can be accurately controlled to ensure the synchronous movement of the detection component 31 and the marking component 41. This precise control is crucial for the accuracy of detection and marking, especially in the case where high-precision detection of a specific area of the cable 1 is required.

[0071] Specifically, the second driving assembly 60 includes a second main gear 61, a third driven gear 62, a fourth driven gear 63 and a connecting shaft 64; the second main gear 61 is arranged on the second mounting block 13; the third driven gear 62 and the fourth driven gear 63 are respectively arranged on the second mounting block 13 at intervals and are respectively meshed and connected with the second main gear 61 and the second rotating member 43; one end of the connecting shaft 64 is connected with the first main gear 51, and the other end of the connecting shaft 64 is connected with the second main gear 61, so that the third driving component 54 drives the first main gear 51 and the second main gear 61 to rotate synchronously. Wherein, the distance between the third driven gear 62 and the fourth driven gear 63 is equal to the opening size of the fourth notch 430 on the second rotating member 43, and the module of the third driven gear 62 and the fourth driven gear 63 is the same. In this way, the third driving component 54 synchronously drives the first main gear 51 and the second main gear 61 through the connecting shaft 64, which can realize the balanced distribution of power between the first rotating member 33 and the second rotating member 43, simplifies the control and power system, reduces the equipment vibration and cable 1 damage caused by power imbalance, and improves the stability of the detection device and the safety of the cable 1.

[0072] In the present application, due to the relatively long length of the tunnel cable 1, the length of the threaded rod 14 is short compared to the length of the cable 1. In order to complete the detection of the entire surface of the cable 1, the device needs to move along the side wall of the cable 1 all the time. When the first mounting block 12 moves to the lower part of the fixed block 11 and contacts the fixed block 11, the first mounting block 12 cannot continue to move in the direction away from the second mounting block 13, nor can it detect the surface of the subsequent length of the cable 1. Then it is necessary to raise the fixed block 11 so that the first mounting block 12 can continue to move forward, and control the limiting component 21 connected to the first mounting block 12 to be tightly connected to the side wall of the cable 1, so that the limiting component 21 connected to the first mounting block 12 and the cable 1 are integrated, while the limiting component 21 connected to the second mounting block 13 is loosened from the cable 1, so that the limiting component 21 connected to the second mounting block 13 and the threaded rod 14 are integrated; and driven by the first driving component 15, the threaded rod 14 rotates, and then the threaded rod 14 drives the second mounting block 13 to move upward until the upper end surface of the second mounting block 13 contacts the bottom end of the first mounting block 12. Then repeat the above steps to achieve the purpose of the first mounting block 12 and the second mounting block 13 moving on the cable 1, which is beneficial to meeting the requirement of the detection component 31 for detecting the entire side wall of the cable 1.

[0073] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0074] The cable 1 insulation layer deterioration detection device includes a mounting frame body 10, a limiting structure 20, a first mounting component 30 and a second mounting component 40; at least part of the mounting frame body 10 is movably arranged; the limiting structure 20 is arranged on the mounting frame body 10 and is used to contact the cable 1, so that the mounting frame body 10 is movably arranged along the extending direction of the cable 1; the first mounting component 30 and the second mounting component 40 are respectively arranged on the mounting frame body 10 extending along the circumferential direction of the cable 1, and at least part of the first mounting component 30 and the second mounting component 40 are respectively rotatably arranged. The first mounting component 30 includes a detection component 31 for detecting the outer surface temperature of the cable 1, and the second mounting component 40 includes a marking component 41 for marking the deteriorated area of the cable 1 detected by the detection component 31. In this way, under the cooperation of the mounting frame body 10 and the limiting structure 20, the first mounting component 30 and the second mounting component 40 can move to any position along the extending direction of the cable 1 and be fixed relative to the cable 1, ensuring the stability and accuracy of the detection. Through the arrangement of the first mounting component 30 and the second mounting component 40, the device can realize the synchronous detection and marking. The detection component 31 can detect the outer surface temperature of the cable 1 in real time, so as to judge whether there is an aging problem with the insulation layer at the point to be measured and timely discover the deteriorated area of the insulation layer. When the detection component 31 detects the deterioration of the cable 1 insulation layer, the marking component 41 can immediately mark this area, ensuring the timeliness and accuracy of the marking and avoiding the errors and inconveniences that may be brought by later manual marking. It can be seen that through the precise positioning of the limiting structure 20 and the adaptive design of the first mounting component 30 and the second mounting component 40, the device can reduce the wear and damage to the cable 1 during the detection process of the cable 1, reduce the cost of additional maintenance or replacement of the cable 1 caused by improper operation of the device, and thus solve the problem of low efficiency in detecting the deterioration of the cable 1 insulation layer in the prior art.

[0075] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0076] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0077] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are usually based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0078] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above", etc. may be used here to describe the spatial positional relationships between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0079] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without otherwise stating, the above words have no special meanings, and thus cannot be construed as limiting the protection scope of the present invention.

[0080] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cable insulation layer degradation detection device, characterized in that: include: A mounting frame (10), at least a portion of which is movably arranged; a limiting structure (20) disposed on the mounting frame (10) and used to contact the cable (1) so that the mounting frame (10) can be movably disposed along the extension direction of the cable (1); The first mounting assembly (30) and the second mounting assembly (40) are respectively arranged on the mounting frame (10) and extend along the circumferential direction of the cable (1); at least parts of the first mounting assembly (30) and the second mounting assembly (40) are respectively rotatably arranged; the first mounting assembly (30) includes a detection component (31) for detecting the outer surface temperature of the cable (1); the second mounting assembly (40) includes a marking component (41) for marking a region on the cable (1) that has been degraded after detection by the detection component (31).

2. The cable insulation layer degradation detection device according to claim 1, characterized in that: The mounting frame (10) comprises: Fixed block (11); A first mounting block (12) and a second mounting block (13), wherein the first mounting assembly (30) is arranged on the first mounting block (12), and the second mounting assembly (40) is arranged on the second mounting block (13), and the first mounting block (12) and the second mounting block (13) are respectively movably arranged relative to the fixed block (11).

3. The cable insulation layer degradation detection device according to claim 2, characterized in that: The mounting frame (10) further comprises: a threaded rod (14), one end of the threaded rod (14) being rotatably connected to the fixing block (11), and the other end of the threaded rod (14) being inserted into threaded holes on the first mounting block (12) and the second mounting block (13) in sequence; A first driving component (15) is disposed on the second mounting block (13) and is drivingly connected to the threaded rod (14) to drive the first mounting block (12) and the second mounting block (13) to move relative to the fixed block (11).

4. The cable insulation layer degradation detection device according to claim 2, characterized in that: The first mounting assembly (30) comprises: A first mounting member (32) connected to the first mounting block (12); The first rotating member (33) is rotatably disposed on the first mounting member (32), and the detection component (31) is disposed on the inner side wall of the first rotating member (33), so that the first rotating member (33) drives the detection component (31) to detect the outer surface temperature of the cable (1).

5. The cable insulation layer degradation detection device according to claim 4, characterized in that: The first mounting member (32) comprises a first curved plate (320) and a second curved plate (321), the first curved plate (320) being connected to the first mounting block (12), the first end of the second curved plate (321) being detachably connected to the first end of the first curved plate (320), and a first notch (322) being formed between the second end of the second curved plate (321) and the second end of the first curved plate (320) for avoiding a cable bracket connected to the cable (1); The center of the circle where the inner wall surface of the first arc-shaped plate (320) and the inner wall surface of the second arc-shaped plate (321) are located is consistent.

6. The cable insulation layer degradation detection device according to claim 5, characterized in that: A first matching portion (3201) is provided on the first end of the first arc-shaped plate (320), and a second matching portion (3210) is provided on the first end of the second arc-shaped plate (321), and the first matching portion (3201) and the second matching portion (3210) are snap-connected; Wherein, one of the first matching portion (3201) and the second matching portion (3210) is a protrusion, and the other of the first matching portion (3201) and the second matching portion (3210) is a groove.

7. The cable insulation layer degradation detection device according to claim 5, characterized in that: A camera component (3211) is provided on the second end of the second arc-shaped plate (321) for detecting the environment at the first notch (322); and / or, A second notch (330) is provided on the first rotating member (33) corresponding to the first notch (322) so as to avoid a cable bracket connected to the cable (1); and / or, A telescopic member (331) is provided on the first rotating member (33), and the top of the telescopic member (331) is telescopically arranged to be in contact with the outer surface of the cable (1).

8. The cable insulation layer degradation detection device according to claim 5, characterized in that: The first arc plate (320) and the second arc plate (321) are respectively provided with a first sub-groove (3202) and a second sub-groove (3212) along their extension direction; the first sub-groove (3202) and the second sub-groove (3212) are interconnected to form a first sliding groove (323); the first rotating member (33) is provided with a first sliding protrusion (332) along its extension direction; the first sliding protrusion (332) extends into the first sliding groove (323) and is movably arranged along the extension direction of the first sliding groove (323).

9. The cable insulation layer degradation detection device according to claim 4, characterized in that: The second mounting assembly (40) comprises: A second mounting member (42) connected to the second mounting block (13); The second rotating member (43) is rotatably disposed on the second mounting member (42); the marking component (41) is disposed on an inner side wall of the second rotating member (43); at least a portion of the marking component (41) is movably disposed toward the outer surface of the cable (1), so that the second rotating member (43) drives the marking component (41) to mark the outer surface of the cable (1).

10. The cable insulation layer degradation detection device according to claim 9, characterized in that: The second mounting member (42) comprises a third curved plate (420) and a fourth curved plate (421), the third curved plate (420) being connected to the second mounting block (13), the first end of the fourth curved plate (421) being detachably connected to the first end of the third curved plate (420), and a third notch (422) being formed between the second end of the fourth curved plate (421) and the second end of the third curved plate (420) for avoiding a cable bracket connected to the cable (1); The inner wall surface of the third curved plate (420) and the inner wall surface of the fourth curved plate (421) have the same center.

11. The cable insulation layer degradation detection device according to claim 10, characterized in that: A third matching portion (4201) is provided on the first end of the third arc-shaped plate (420), a fourth matching portion (4210) is provided on the first end of the fourth arc-shaped plate (421), and the third matching portion (4201) is snap-connected with the fourth matching portion (4210); Wherein, one of the third matching portion (4201) and the fourth matching portion (4210) is a protrusion, and the other of the third matching portion (4201) and the fourth matching portion (4210) is a groove.

12. The cable insulation layer degradation detection device according to claim 10, characterized in that: The third arc plate (420) and the fourth arc plate (421) are respectively provided with a third sub-groove (4202) and a fourth sub-groove (4211) along their extension direction; the third sub-groove (4202) and the fourth sub-groove (4211) are interconnected to form a second sliding groove (423); the second rotating member (43) is provided with a second sliding protrusion (431) along its extension direction; the second sliding protrusion (431) extends into the second sliding groove (423) and is movably arranged along the extension direction of the second sliding groove (423).

13. The cable insulation layer degradation detection device according to claim 2, characterized in that: The limiting structure (20) comprises: Two limit assemblies (21) are respectively connected to the first mounting block (12) and the second mounting block (13), and the limit assemblies (21) include two contact portions (210). The two contact portions (210) are respectively used to cooperate with and abut against the outer peripheral surface of the cable (1), so that when the first mounting block (12) or the second mounting block (13) moves to any position relative to the cable (1), the first mounting block (12) or the second mounting block (13) is fixed relative to the cable (1).

14. The cable insulation layer degradation detection device according to claim 13, characterized in that: The limiting component (21) further comprises: A second driving component (211) is arranged on the first mounting block (12) or the second mounting block (13), and an output end of the second driving component (211) is telescopically arranged; Two first connecting rods (212), one end of each of the two first connecting rods (212) being rotatably connected to the output end of the second driving component (211); Two second connecting rods (213), one end of the two second connecting rods (213) is rotatably connected to the other end of the two first connecting rods (212) respectively, and the other end of the two second connecting rods (213) is rotatably connected to the two contact parts (210) respectively; Wherein, the contact portion (210) comprises two arc-shaped structures arranged opposite to each other.

15. The cable insulation layer degradation detection device according to claim 9, characterized in that: The first rotating member (33) and the second rotating member (43) are both arc-shaped rack structures; the first mounting block (12) is provided with a first driving assembly (50) which is transmission-connected to the first rotating member (33); the second mounting block (13) is provided with a first driving assembly (50) which is transmission-connected to the second rotating member (33); The first driving assembly (50) and the second driving assembly (60) are connected to each other in a synchronously rotating manner, so that the first rotating member (33) and the second rotating member (43) are arranged to rotate synchronously.

16. The cable insulation layer degradation detection device according to claim 15, characterized in that: The first driving assembly (50) comprises: A first main gear (51) is arranged on the first mounting block (12); A first slave gear (52) and a second slave gear (53) are respectively arranged on the first mounting block (12) at intervals and are respectively meshed and connected with the first main gear (51) and the first rotating member (33); A third driving component (54) is arranged on the first mounting block (12), and an output end of the third driving component (54) is connected to the first main gear (51) to drive the first main gear (51) to drive the first rotating member (33) to rotate.

17. The cable insulation layer degradation detection device according to claim 16, wherein the second driving component (60) comprises: A second main gear (61) is arranged on the second mounting block (13); A third slave gear (62) and a fourth slave gear (63) are respectively arranged on the second mounting block (13) at intervals and are respectively meshed and connected with the second main gear (61) and the second rotating member (43); A connecting shaft (64), one end of the connecting shaft (64) is connected to the first main gear (51), and the other end of the connecting shaft (64) is connected to the second main gear (61), so that the third driving component (54) drives the first main gear (51) and the second main gear (61) to rotate synchronously.

Images