Intelligent positioning and detecting device and method for weak points of power transmission line

Abstract

The invention relates to the technical field of electric wire and cable fault detection, and discloses a power transmission line weak point intelligent positioning detection device which comprises a base, walking mechanisms are arranged at the two ends of the base, a picture acquisition mechanism is arranged in the middle of the base and comprises a base, a detachable cover plate is arranged on the upper side of the base, and a power transmission line weak point intelligent positioning detection device is arranged on the base. Camera mounting plates are arranged on the inner side of the base and the inner side of the cover plate, a plurality of cameras are arranged on the camera mounting plates, a base with a walking mechanism is arranged, a picture collecting mechanism and a cleaning mechanism are further arranged on the base, surface information of a cable insulation layer is collected through the picture collecting mechanism, and the surface information of the cable insulation layer is cleaned through the cleaning mechanism; according to the technical scheme, surface defect detection of the cable insulation layer can be rapidly completed without climbing equipment, the influence of environmental limitation is small, and the detection efficiency is higher.

Description

Technical Field

[0001] This invention relates to the field of power line and cable fault detection technology, specifically to an intelligent location and detection device and method for weak points in power transmission lines. Background Technology

[0002] The withstand voltage strength of a cable depends on the material and thickness of its insulation. Therefore, the standards for wire and cable products have strict requirements on the insulation thickness. If the insulation thickness does not meet the standard requirements, the strength of the product will be reduced at the weak points of the insulation or the electric field will be too concentrated at one point, causing safety hazards. In severe cases, it may cause discharge or even breakdown, endangering personal and property safety.

[0003] The insulation of conventional wires and cables is made of plastic. After prolonged use, the insulation layer is prone to cracking and partial detachment, leading to leakage. Currently, there is no good method for inspecting overhead cables. Generally, manual inspection is carried out by visually inspecting the insulation layer of transmission lines with the help of elevated equipment to check for cracks, partial detachment, and other problems. This is acceptable in open areas, but in areas with complex surrounding environments, the inspection efficiency will be further reduced due to the influence of the surrounding environment. Summary of the Invention

[0004] This invention provides an intelligent positioning and detection device and method for weak points in power transmission lines, which has the beneficial effect of high detection efficiency. It solves the problem mentioned in the background art that there is no good method for inspecting overhead cables. In general, manual inspection of the insulation layer of power transmission lines is carried out by visual inspection with the help of climbing equipment, which has low detection efficiency.

[0005] The present invention provides the following technical solution: a smart positioning and detection device for weak points of power transmission lines, including a base, with walking mechanisms at both ends of the base and an image acquisition mechanism in the middle of the base. The image acquisition mechanism includes a base, with a detachable cover plate on the upper side of the base. A camera mounting plate is provided on the inner side of both the base and the cover plate, and a plurality of cameras are provided on the camera mounting plate.

[0006] A cleaning mechanism is provided on one side of the base, and the cleaning mechanism includes a support seat, which is slidably connected to the base. A detachable brush plate fixing seat is provided on one side of the support seat, and a brush plate is provided inside both the brush plate fixing seat and the support seat.

[0007] As an optional solution of the intelligent positioning and detection device for weak points of power transmission lines according to the present invention, the walking mechanism includes a fixed base, the fixed base is fixedly connected to the base, and a connecting claw is symmetrically provided on one side of the fixed base, a transmission wheel is provided on one side of the connecting claw, and a drive motor for driving the transmission wheel to rotate is provided on the other side of the connecting claw.

[0008] The upper side of the fixed base is provided with a detachable limiting seat, and one side of the limiting seat is provided with a wheel frame. The wheel frame is provided with a roller, and the wheel frame is elastically connected to the limiting seat through a first spring.

[0009] As an optional solution of the intelligent positioning and detection device for weak points in power transmission lines described in this invention, the brush plate fixing seat is a hollow structure, and the brush plate fixing seat is provided with a pipe interface, and a plurality of nozzles are provided on one side of the brush plate fixing seat.

[0010] As an optional solution of the intelligent positioning and detection device for weak points in power transmission lines according to the present invention, wherein: a first electric push rod is provided on one side of the fixed base, one end of the first electric push rod is fixedly connected to the fixed base, and the piston rod of the first electric push rod is fixedly connected to the bearing seat.

[0011] As an optional solution of the intelligent positioning and detection device for weak points of power transmission lines described in this invention, the fixed base is provided with a squeezing seat on the side facing the bearing seat. The squeezing seat is detachably connected to the fixed base by screws, and the squeezing seat is provided with a plurality of extended protrusions. The end of the nozzle is provided with an arc-shaped groove that matches the extended protrusions.

[0012] As an optional solution of the intelligent positioning and detection device for weak points of power transmission lines described in this invention, the base is a hollow structure, and a wastewater collection tank is provided inside the base. A filter plate is provided at the upper end of the wastewater collection tank, and a circulation pump is provided inside the wastewater collection tank. A cleaning brush is provided on the filter plate.

[0013] The brush plate fixing seat is provided with a driving mechanism for driving the cleaning brush to move. The driving mechanism includes a cylinder body. One end of the cylinder body is connected to the brush plate fixing seat. A first piston is provided inside the cylinder body. The first piston is elastically connected to the cylinder body through a return spring. The cleaning brush is fixedly connected to the first piston through a connecting rod.

[0014] As an optional solution of the intelligent positioning and detection device for weak points in power transmission lines according to the present invention, the image acquisition mechanism is provided with a marking mechanism on the side away from the cleaning mechanism. The marking mechanism includes a support frame, and the support frame is provided with a second electric push rod and a pigment storage tank. The pigment storage tank is provided with a second piston, and one end of the pigment storage tank is provided with a discharge nozzle. The other end of the pigment storage tank is detachably connected to the support frame by threads. The piston rod of the second electric push rod is fixedly connected to the second piston.

[0015] As an optional solution of the intelligent positioning and detection device for weak points of power transmission lines described in this invention, the upper side of the base is provided with a scraper, the scraper is arc-shaped, and the scraper is screwed to the support frame through a threaded rod.

[0016] As an optional solution of the intelligent positioning and detection device for weak points in power transmission lines described in this invention, wherein: one side of the fixed base and the limiting base are provided with an arc-shaped groove, and a limiting plate is provided in the arc-shaped groove, and the limiting plate is detachably fixed in the arc-shaped groove by screws.

[0017] As an optional solution to the method of the intelligent positioning and detection device for weak points in power transmission lines according to the present invention, it includes the following steps:

[0018] S1. Testing preparation: Install the base on the cable, then install the wireless signal receiver on the base. The operator uses a handheld mobile terminal to control the walking mechanism, image acquisition mechanism, cleaning mechanism, and marking mechanism via wireless signal.

[0019] S2. Detection: Start the walking mechanism. Driven by the walking mechanism, the device moves along the cable. During the movement, the image acquisition mechanism records the surface of the cable.

[0020] S3. Weak point location: During the image acquisition process, the acquired image is compared with the data in the database. When image data that differs significantly from normal images appears, the marking mechanism works and drips pigment onto the surface of the insulation layer. After the inspection is completed, the marked area is manually checked for further confirmation.

[0021] S4. Manual screening: Based on the video data collected by the image acquisition agency, the images are manually identified to further improve the detection accuracy.

[0022] The present invention has the following beneficial effects:

[0023] 1. This intelligent positioning and detection device and method for weak points in power transmission lines includes a base with a walking mechanism, and an image acquisition mechanism, a cleaning mechanism, and a marking mechanism. The image acquisition mechanism collects surface information of the cable insulation layer, and then the image is identified and processed manually or by an intelligent processor to locate cracks or peeling in the insulation layer. The cleaning mechanism cleans the surface of the insulation layer to reduce the impact of dust on the image acquisition mechanism and improve the accuracy of image acquisition. The marking mechanism marks the weak points after identification, facilitating further confirmation and maintenance by maintenance personnel. This technical solution can quickly complete the detection of surface defects in the cable insulation layer without the need for climbing equipment, is less affected by environmental limitations, and has higher detection efficiency.

[0024] 2. The intelligent positioning and detection device and method for weak points of power transmission lines includes a cleaning mechanism comprising a support base and a brush plate fixing base. Brush plates are provided at both the support base and the brush plate fixing base, and correspondingly, nozzles are provided at the brush plate fixing base. A circulation pump and a wastewater collection tank are provided at the base. During use, cleaning water is added to the wastewater collection tank. Then, driven by the circulation pump, the water in the wastewater collection tank enters the brush plate fixing base through pipes and pipe interfaces, and is then sprayed onto the cable through the nozzles. During the movement, the surface of the cable can be cleaned by the brush plates, and the wastewater flowing down the cable can be collected by the base with the wastewater collection tank.

[0025] To improve the cleaning effect, this technical solution provides a squeezing seat on one side of the fixed seat. The bearing seat can be pulled towards the fixed seat by the first electric push rod. As the bearing seat moves, the squeezing seat squeezes against the brush plate. Under the push of the squeezing seat, the sewage at the brush plate can be squeezed out to clean the brush plate and improve the cleaning effect.

[0026] 3. This intelligent positioning and detection device and method for weak points in power transmission lines effectively reduces the risk of clogging of the circulating pump by setting a filter plate at the wastewater collection tank. A drive mechanism is provided, including a cylinder body connected to a brush plate fixing seat. A first piston is located inside the cylinder body and is fixedly connected to the cleaning brush via a connecting rod. During the cleaning process of the brush plate, the extended protrusion on the squeezing seat inserts into the arc-shaped groove, thus blocking the nozzle. At this time, the water pressure inside the brush plate fixing seat increases. Because the cylinder body is connected to the brush plate fixing seat, the first piston overcomes the resistance of the return spring and moves under the push of the water pressure. Under the push of the first piston and the connecting rod, the cleaning brush can scrub the filter plate, effectively reducing the risk of clogging of the filter plate. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention.

[0028] Figure 2 This is a side view of the present invention.

[0029] Figure 3 This is a schematic diagram of the walking mechanism of the present invention.

[0030] Figure 4 This is a schematic diagram of the back structure of the limiting seat of the present invention.

[0031] Figure 5 This is a schematic diagram of the cleaning mechanism structure of the present invention.

[0032] Figure 6 This is a schematic diagram of the drive mechanism structure of the present invention.

[0033] Figure 7 This is a schematic diagram of the marking mechanism structure of the present invention.

[0034] Figure 8 This is a schematic diagram of the image acquisition mechanism of the present invention.

[0035] In the diagram: 1. Base; 101. Wastewater collection tank; 102. Filter plate; 103. Cleaning brush; 104. Connecting rod; 105. Circulation pump; 2. Base; 3. Cover plate; 4. Camera mounting plate; 5. Camera; 6. Bearing seat; 7. Brush plate fixing seat; 701. Pipe interface; 702. Nozzle; 703. Arc-shaped groove; 8. Brush plate; 9. Fixing seat; 10. Connecting claw; 11. Transmission wheel; 12. Drive motor; 13. 14. Limiting seat; 15. Wheel frame; 16. Roller; 17. First spring; 18. First electric push rod; 19. Extrusion seat; 10. Extension protrusion; 10. Cylinder body; 11. First piston; 12. Return spring; 23. Second electric push rod; 24. Pigment storage tank; 25. Second piston; 26. Discharge nozzle; 27. Scraper; 28. Threaded rod; 29. ​​Arc-shaped groove; 20. Limiting plate; 21. Support frame. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1

[0038] Please see Figures 1 to 8This invention discloses an intelligent positioning and detection device for weak points in power transmission lines, including a base 1, with walking mechanisms at both ends of the base 1 and an image acquisition mechanism in the middle of the base 1. The image acquisition mechanism includes a base 2, with a detachable cover plate 3 on the upper side of the base 2. A camera mounting plate 4 is provided on the inner side of both the base 2 and the cover plate 3, and a plurality of cameras 5 are provided on the camera mounting plate 4.

[0039] A cleaning mechanism is provided on one side of the base 2, and the cleaning mechanism includes a support seat 6, which is slidably connected to the base 1. A detachable brush plate fixing seat 7 is provided on one side of the support seat 6, and a brush plate 8 is provided in both the brush plate fixing seat 7 and the support seat 6.

[0040] This technical solution uses a base 1 with a walking mechanism, on which a screen acquisition mechanism, a cleaning mechanism, and a marking mechanism are also installed. The screen acquisition mechanism collects surface information of the cable insulation layer, and then the image is identified and processed by a manual or intelligent processor to find cracks or peeling in the insulation layer. The cleaning mechanism cleans the surface of the insulation layer to reduce the impact of dust on the screen acquisition mechanism and improve the accuracy of screen acquisition. The marking mechanism marks the weak points after they are identified, making it convenient for maintenance personnel to further confirm and maintain them. This technical solution can quickly complete the surface defect detection of the cable insulation layer without the need for climbing equipment, is less affected by environmental limitations, and has higher detection efficiency.

[0041] Specifically, the image acquisition mechanism includes a base 2 and a cover plate 3. The base 2 is fixedly connected to the base 1, and the cover plate 3 is detachably connected to the base 2. In use, the cover plate 3 is fixed to the base 2 with screws. A camera mounting plate 4 is provided at both the cover plate 3 and the base 2. Several cameras 5 are provided on the camera mounting plate 4. The camera 5 can capture images of the surface of the cable insulation layer.

[0042] The instruction manual indicates that a removable battery (not shown in the diagram) is also provided at base 1 to power the electrical equipment on base 1.

[0043] Example 2

[0044] This embodiment is an explanation based on Embodiment 1. For details, please refer to [link / reference]. Figures 1 to 8 The walking mechanism includes a fixed seat 9, which is fixedly connected to the base 1. A connecting claw 10 is symmetrically provided on one side of the fixed seat 9, a transmission wheel 11 is provided on one side of the connecting claw 10, and a drive motor 12 for driving the transmission wheel 11 to rotate is provided on the other side of the connecting claw 10.

[0045] The upper side of the fixed base 9 is provided with a detachable limiting base 13, and a wheel frame 14 is provided on one side of the limiting base 13. A roller 15 is provided on the wheel frame 14, and the wheel frame 14 is elastically connected to the limiting base 13 through a first spring 16.

[0046] The brush plate holder 7 is a hollow structure, and the brush plate holder 7 is provided with a pipe interface 701. Several nozzles 702 are provided on one side of the brush plate holder 7.

[0047] A first electric push rod 17 is provided on one side of the fixed base 9. One end of the first electric push rod 17 is fixedly connected to the fixed base 9, and the piston rod of the first electric push rod 17 is fixedly connected to the bearing seat 6. A pressing seat 18 is provided on the side of the fixed base 9 facing the bearing seat 6. The pressing seat 18 is detachably connected to the fixed base 9 by screws, and the pressing seat 18 is provided with a plurality of extending protrusions 1801. The end of the nozzle 702 is provided with an arc-shaped groove 703 that matches the extending protrusions 1801.

[0048] The walking mechanism includes a fixed base 9 and a limiting base 13. A drive motor 12 and a transmission wheel 11 are provided at the fixed base 9, and a roller 15 and a wheel frame 14 are provided at the limiting base 13. The wheel frame 14 is elastically connected to the limiting base 13 through a first spring 16. When the fixed base 9 and the limiting base 13 are fixed together, the roller 15 and the transmission wheel 11 can clamp the cable under the action of the first spring 16. At this time, the drive motor 12 is started, and the transmission wheel 11 rotates under the drive of the drive motor 12. Under the drive of the transmission wheel 11, the walking mechanism can carry the base 1 along the overhead cable.

[0049] The cleaning mechanism includes a support base 6 and a brush plate fixing base 7. Brush plates 8 are provided at both the support base 6 and the brush plate fixing base 7. Correspondingly, a nozzle 702 is provided at the brush plate fixing base 7. A circulation pump 105 and a wastewater collection tank 101 are provided at the base 1. When in use, cleaning water is added into the wastewater collection tank 101. Then, driven by the circulation pump 105, the water in the wastewater collection tank 101 enters the brush plate fixing base 7 through the pipe and pipe interface 701, and is then sprayed onto the cable through the nozzle 702. During the movement, the surface of the cable can be cleaned by the brush plate 8, and the wastewater flowing down the cable can be collected by the base 1 with the wastewater collection tank 101.

[0050] To improve the cleaning effect, this technical solution provides a squeezing seat 18 on one side of the fixed seat 9. The bearing seat 6 can be pulled towards the fixed seat 9 by the first electric push rod 17. As the bearing seat 6 moves, the squeezing seat 18 squeezes against the brush plate 8. Under the push of the squeezing seat 18, the sewage at the brush plate 8 can be squeezed out to achieve the purpose of cleaning the brush plate 8 and improve the cleaning effect.

[0051] Example 3

[0052] This embodiment is an explanation based on Embodiment 1. For details, please refer to [link / reference]. Figures 1 to 8 The base 1 is a hollow structure, and a wastewater collection tank 101 is provided inside the base 1. A filter plate 102 is provided at the upper end of the wastewater collection tank 101, and a circulation pump 105 is provided inside the wastewater collection tank 101. A cleaning brush 103 is provided on the filter plate 102.

[0053] The brush plate fixing seat 7 is provided with a drive mechanism for driving the cleaning brush 103 to move. The drive mechanism includes a cylinder 19. One end of the cylinder 19 is connected to the brush plate fixing seat 7. A first piston 1901 is provided in the cylinder 19. The first piston 1901 is elastically connected to the cylinder 19 through a return spring 1902. The cleaning brush 103 is fixedly connected to the first piston 1901 through a connecting rod 104.

[0054] In daily use, a lot of dust will accumulate on the surface of the cable. Therefore, the wastewater will also contain a lot of dust during the cleaning process. In order to reduce the impact of dust on the circulating pump 105, this technical solution sets a filter plate 102 at the wastewater collection tank 101. At the same time, in order to prevent the filter plate 102 from being blocked, this technical solution also sets a drive mechanism for cleaning the filter plate 102. The drive mechanism includes a cylinder 19, and a first piston 1901 is provided in the cylinder 19. The first piston 1901 is fixedly connected to the cleaning brush 103 through the connecting rod 104. The drive mechanism is hydraulically driven.

[0055] The specific working principle is as follows: Under normal circumstances, when water enters the brush plate fixing seat 7, it will be sprayed out through the nozzle 702. An extension protrusion 1801 is provided at the squeezing seat 18. Correspondingly, an arc-shaped groove 703 that fits the extension protrusion 1801 is provided at the nozzle 702. When the brush plate 8 moves towards the squeezing seat 18, on the one hand, the squeezing seat 18 can squeeze the brush plate 8 to discharge sewage. On the other hand, the extension protrusion 1801 will insert into the arc-shaped groove 703 to block the nozzle 702. At this time, the water pressure inside the brush plate fixing seat 7 increases. Since the cylinder 19 is connected to the brush plate fixing seat 7, under the push of the water pressure, the first piston 1901 overcomes the resistance of the return spring 1902 and moves. Under the push of the first piston 1901 and the connecting rod 104, the cleaning brush 103 can brush the filter plate 102, effectively reducing the risk of the filter plate 102 being blocked.

[0056] Example 4

[0057] This embodiment is an explanation based on Embodiment 1. For details, please refer to [link / reference]. Figures 1 to 8A marking mechanism is provided on the side of the image acquisition mechanism away from the cleaning mechanism. The marking mechanism includes a support frame 28, on which a second electric push rod 20 and a pigment storage tank 21 are mounted. A second piston 22 is located inside the pigment storage tank 21, and a discharge nozzle 23 is provided at one end of the pigment storage tank 21. The other end of the pigment storage tank 21 is detachably connected to the support frame 28 via threads. The piston rod of the second electric push rod 20 is fixedly connected to the second piston 22. A scraper 24 is provided on the upper side of the base 1. The scraper 24 is arc-shaped and is screwed to the support frame 28 via a threaded rod 25.

[0058] Both the fixed base 9 and the limiting base 13 have an arc-shaped groove 26 on one side, and a limiting plate 27 is provided in the arc-shaped groove 26. The limiting plate 27 is detachably fixed in the arc-shaped groove 26 by screws.

[0059] The marking mechanism includes a support frame 28, a second electric push rod 20 and a pigment storage tank 21 mounted on the support frame 28. The pigment storage tank 21 is threaded to the support frame 28. A second piston 22 is located inside the pigment storage tank 21. The second electric push rod 20 can push the second piston 22 to move, thereby squeezing out the pigment in the pigment storage tank 21. The squeezed-out pigment will fall onto the insulating layer. In order to make the marking more conspicuous, this technical solution also includes a scraper 24. As the entire device moves, the scraper 24 can scrape the pigment, further improving the marking effect.

[0060] Since this device will encounter many cables of different sizes during use, in order to improve versatility, this technical solution also provides a detachable limiting plate 27 on the inner side of the fixed base 9 and the limiting base 13. The limiting plate 27 is detachably fixed to the arc-shaped groove 26 by screws. For cables of different diameters, the limiting plate 27 with different curvatures can be replaced to adapt to cables of different diameters, further improving the applicability of this technical solution.

[0061] Example 5

[0062] This embodiment is an explanation based on Embodiment 1. For details, please refer to [link / reference]. Figures 1 to 8 A method for intelligent location and detection device for weak points in power transmission lines includes the following steps:

[0063] S1. Test preparation: Install base 1 on the cable, then install the wireless signal receiver on base 1. The operator uses a handheld mobile terminal to control the walking mechanism, image acquisition mechanism, cleaning mechanism and marking mechanism through wireless signals.

[0064] S2. Detection: Start the walking mechanism. Driven by the walking mechanism, the device moves along the cable. During the movement, the image acquisition mechanism records the surface of the cable.

[0065] S3. Weak point location: During the image acquisition process, the acquired image is compared with the data in the database. When image data that differs significantly from normal images appears, the marking mechanism works and drips pigment onto the surface of the insulation layer. After the inspection is completed, the marked area is manually checked for further confirmation.

[0066] S4. Manual screening: Based on the video data collected by the image acquisition agency, the images are manually identified to further improve the detection accuracy.

[0067] This technical solution involves setting up a detection device that can move along the cable, thus enabling the inspection of overhead cables without the need for climbing equipment. Since no climbing machinery is required, the operation of the entire device is less affected by the surrounding environment of the cable, resulting in higher detection efficiency. The image acquisition mechanism can collect image information of the cable surface, and by comparing it with data in the database, weak points can be identified. At this point, a marking mechanism can mark the weak points to facilitate subsequent maintenance, greatly improving the efficiency of cable maintenance.

[0068] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0069] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A smart positioning and detection device for weak points in power transmission lines, comprising a base (1), characterized in that: The base (1) is provided with a walking mechanism at both ends and a screen acquisition mechanism in the middle of the base (1). The screen acquisition mechanism includes a base (2). A detachable cover plate (3) is provided on the upper side of the base (2). A camera mounting plate (4) is provided on the inner side of both the base (2) and the cover plate (3). A number of cameras (5) are provided on the camera mounting plate (4). The base (2) has a cleaning mechanism on one side, and the cleaning mechanism includes a support seat (6). The support seat (6) is slidably connected to the base (1), and a detachable brush plate fixing seat (7) is provided on one side of the support seat (6). Both the brush plate fixing seat (7) and the support seat (6) are provided with brush plates (8).

2. The intelligent positioning and detection device for weak points in power transmission lines according to claim 1, characterized in that: The walking mechanism includes a fixed seat (9), which is fixedly connected to the base (1). A connecting claw (10) is symmetrically provided on one side of the fixed seat (9). A transmission wheel (11) is provided on one side of the connecting claw (10), and a drive motor (12) for driving the transmission wheel (11) to rotate is provided on the other side of the connecting claw (10). The upper side of the fixed seat (9) is provided with a detachable limiting seat (13), and a wheel frame (14) is provided on one side of the limiting seat (13). The wheel frame (14) is provided with a roller (15), and the wheel frame (14) is elastically connected to the limiting seat (13) through a first spring (16).

3. The intelligent positioning and detection device for weak points in power transmission lines according to claim 1, characterized in that: The brush plate fixing seat (7) is a hollow structure, and the brush plate fixing seat (7) is provided with a pipe interface (701). A number of nozzles (702) are provided on one side of the brush plate fixing seat (7).

4. The intelligent positioning and detection device for weak points in power transmission lines according to claim 3, characterized in that: A first electric push rod (17) is provided on one side of the fixed seat (9). One end of the first electric push rod (17) is fixedly connected to the fixed seat (9), and the piston rod of the first electric push rod (17) is fixedly connected to the bearing seat (6).

5. The intelligent positioning and detection device for weak points in power transmission lines according to claim 4, characterized in that: The fixed seat (9) has a pressing seat (18) on the side facing the bearing seat (6). The pressing seat (18) is detachably connected to the fixed seat (9) by screws. The pressing seat (18) has a plurality of extending protrusions (1801). The end of the nozzle (702) has an arc-shaped groove (703) that matches the extending protrusions (1801).

6. The intelligent positioning and detection device for weak points in power transmission lines according to claim 5, characterized in that: The base (1) is a hollow structure, and a wastewater collection tank (101) is provided inside the base (1). A filter plate (102) is provided at the upper end of the wastewater collection tank (101), and a circulation pump (105) is provided inside the wastewater collection tank (101). A cleaning brush (103) is provided on the filter plate (102). The brush plate fixing seat (7) is provided with a driving mechanism for driving the cleaning brush (103) to move. The driving mechanism includes a cylinder (19). One end of the cylinder (19) is connected to the brush plate fixing seat (7). A first piston (1901) is provided in the cylinder (19). The first piston (1901) is elastically connected to the cylinder (19) through a return spring (1902). The cleaning brush (103) is fixedly connected to the first piston (1901) through a connecting rod (104).

7. The intelligent positioning and detection device for weak points in power transmission lines according to claim 1, characterized in that: The image acquisition mechanism is provided with a marking mechanism on the side away from the cleaning mechanism. The marking mechanism includes a support frame (28), and the support frame (28) is provided with a second electric push rod (20) and a pigment storage tank (21). The pigment storage tank (21) is provided with a second piston (22), and one end of the pigment storage tank (21) is provided with a discharge nozzle (23). The other end of the pigment storage tank (21) is detachably connected to the support frame (28) by a thread. The piston rod of the second electric push rod (20) is fixedly connected to the second piston (22).

8. The intelligent positioning and detection device for weak points in power transmission lines according to claim 7, characterized in that: The upper side of the base (1) is provided with a scraper (24), which is arc-shaped and is screwed to the support frame (28) by a threaded rod (25).

9. The intelligent positioning and detection device for weak points in power transmission lines according to claim 2, characterized in that: Both the fixed base (9) and the limiting base (13) are provided with an arc-shaped groove (26) on one side, and a limiting plate (27) is provided in the arc-shaped groove (26). The limiting plate (27) is detachably fixed in the arc-shaped groove (26) by screws.

10. A method for intelligent location and detection device for weak points in power transmission lines according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Test preparation: Install the base (1) on the cable, and then install the wireless signal receiver on the base (1). The operator holds a mobile terminal to control the walking mechanism, the image acquisition mechanism, the cleaning mechanism and the marking mechanism through wireless signals. S2. Detection: Start the walking mechanism. Driven by the walking mechanism, the device moves along the cable. During the movement, the image acquisition mechanism records the surface of the cable. S3. Weak point location: During the image acquisition process, the acquired image is compared with the data in the database. When image data that differs significantly from normal images appears, the marking mechanism works and drips pigment onto the surface of the insulation layer. After the inspection is completed, the marked area is manually checked for further confirmation. S4. Manual screening: Based on the video data collected by the image acquisition agency, the images are manually identified to further improve the detection accuracy.

Images