Electric transmission line arc fault detecting and positioning device

Abstract

The invention discloses a power transmission line arc fault detection and positioning device, and the device comprises a walking vehicle, the upper surface of the walking vehicle is fixedly connected with a supporting structure, and the top end of the supporting structure is fixedly connected with a positioning detection assembly, a wind shielding mechanism, and a cleaning mechanism. In order to solve the problem that when a long power transmission line is detected, the distance between an infrared thermal imager and the power transmission line may change to cause detection errors, through cooperative use of a walking vehicle, a supporting structure and a positioning detection assembly, mobile detection can be carried out along the power transmission line; the distance between the power transmission line and the thermal infrared imager is guaranteed, further, in order to solve the problem of low data error caused by too fast heat dissipation of the power transmission line blown by wind and measurement temperature reduction due to gust outdoors, through cooperative use of the positioning detection assembly and the wind shielding mechanism, wind shielding can be automatically performed in strong wind.

Description

Technical Field

[0001] The present application relates to the technical field of arc fault detection, and in particular to a device for detecting and locating arc faults in power transmission lines. Background Art

[0002] An arc fault is an electrical fault in which an arc occurs in a live circuit without human intention. Infrared thermal imagers play an important role in arc fault detection. Infrared thermal imagers are instruments that use the principle of infrared radiation for non-contact temperature measurement. They can intuitively display the thermal field distribution on the surface of the target being measured in the form of an image.

[0003] In the prior art, although ordinary infrared thermal imagers can detect arc faults in power transmission lines, when performing outdoor detection operations, when detecting long power transmission lines, it is difficult to ensure the distance between the infrared thermal imager and the power transmission line by manual operation. At the same time, in outdoor gusty weather, the gusts cause the power transmission line to dissipate heat too quickly, and the measured temperature is reduced, resulting in low data errors.

[0004] That is, the prior art has the following technical problem: when ordinary infrared thermal imager-type electrical fault detection equipment is used outdoors, it is easy to cause detection errors due to gusts of wind. Therefore, a transmission line arc fault detection and positioning device is proposed to address the above problem. Summary of the invention

[0005] In this embodiment, a transmission line arc fault detection and positioning device is provided to solve the problem that ordinary infrared thermal imager-type electrical fault detection equipment in the prior art is easily affected by gusts and causes detection errors during outdoor detection.

[0006] According to one aspect of the present application, a transmission line arc fault detection and positioning device is provided, and the transmission line arc fault detection and positioning device comprises:

[0007] A traveling vehicle, wherein a supporting structure is fixedly connected to the upper surface of the traveling vehicle, a positioning detection component is fixedly connected to the top of the supporting structure, an infrared thermal imager is fixedly arranged inside the positioning detection component, and the infrared thermal imager is used to capture the thermal radiation signal of the transmission line;

[0008] A wind shielding mechanism, which is fixedly arranged at the side of the positioning detection component, is connected to the positioning detection component, and is used to automatically shield the detection position from wind in gusty weather;

[0009] A cleaning mechanism is fixedly arranged at the front side of the positioning detection component, and is used for automatically cleaning attachments on the surface of the power transmission line.

[0010] Furthermore, the supporting structure includes a fixed tripod, a rectangular sleeve rod, a rectangular movable rod, a supporting hydraulic cylinder, an adjusting hydraulic cylinder, a connecting tripod, a supporting platform, an adjusting motor, a supporting sleeve rod and a supporting movable rod. The fixed tripod is fixedly arranged on the upper surface of the walking vehicle, and the fixed tripod is rotatably connected to the rectangular sleeve rod, and the rectangular movable rod is slidably connected in the inner cavity of the rectangular sleeve rod, and one end of the supporting hydraulic cylinder is fixedly connected in the inner cavity of the rectangular sleeve rod, and the other end of the supporting hydraulic cylinder is fixedly connected to the bottom end of the rectangular movable rod.

[0011] Furthermore, both ends of the adjusting hydraulic cylinder are rotatably connected with connecting legs, one of the connecting legs is fixedly connected to the side wall of the rectangular sleeve rod, and the other connecting legs is fixedly connected to the upper surface of the walking vehicle; the top end of the rectangular moving rod is rotatably connected to a support platform, the top side wall of the rectangular moving rod is fixedly connected to an adjusting motor, the end of the output shaft of the adjusting motor is fixedly connected to the support platform, the upper surface of the support platform is fixedly connected with a supporting sleeve rod, a supporting moving rod is slidably connected in the inner cavity of the supporting sleeve rod, one end of a connecting spring is fixedly connected to the top of the supporting moving rod, and the other end of the connecting spring is fixedly connected to the support platform.

[0012] Furthermore, the positioning detection assembly includes a fixed base, a frame plate, a guide roller, a fixed plate, an infrared thermal imager, an airbag, a movable slider, a threaded rod, a bevel gear A and a servo motor. The fixed base is fixedly arranged at the top end supporting the movable rod, and the frame plates are slidably connected to both sides of the upper surface of the fixed base. An inner cavity is arranged inside the fixed base, and the movable sliders are slidably connected to both sides of the inner cavity of the fixed base. The movable slider is fixedly connected to the frame plate, and the threaded rods are rotatably connected to both sides of the inner cavity of the fixed base. The threaded rods penetrate the movable slider and are threadedly matched with the movable slider. One end of the threaded rod is fixedly connected to the bevel gear A, and a servo motor is fixedly installed on the side wall of the fixed base. The end of the output shaft of the servo motor extends into the inner cavity of the fixed base, and the end of the output shaft of the servo motor is fixedly connected to the bevel gear B, and the bevel gear B and the bevel gear A are meshed with each other.

[0013] Furthermore, four guide rollers are rotatably connected to the inner walls of the inner cavities of the two frame plates, and the four guide rollers are respectively arranged on both sides of the inner walls of the frame plates. A fixed plate is fixedly connected to the inner bottom surface of one of the frame plates, an infrared thermal imager is fixedly connected to the upper surface of the fixed plate, and airbags are fixedly connected to the side edges of both sides of the frame plates.

[0014] The cam is provided with a plurality of guide wheels, and the guide wheels are connected with the guide wheels at the bottom of the cam, and the guide wheels are connected with the guide wheels at the bottom of the cam.

[0015] Furthermore, the fixed cylinder is fixedly arranged at the side wall position of the rectangular fixed shell, and a movable piston is slidably connected in the inner cavity of the fixed cylinder, and one end of a movable guide rod is fixedly connected to the upper surface of the movable piston, and the other end of the movable guide rod passes through the upper wall of the inner cavity of the fixed cylinder and extends outside the wall, and the top of the movable guide rod is fixedly connected to the bottom surface of the movable plate, and one end of a spring is fixedly connected to the upper surface of the fixed cylinder, and the other end of the spring is fixedly connected to the bottom surface of the movable plate, and one end of a connecting hose is fixedly connected to the bottom side of the inner cavity of the fixed cylinder, and the other end of the connecting hose extends into the inner cavity of the airbag and is fixedly connected to the airbag.

[0016] Furthermore, the cleaning mechanism includes a fixed side plate, a connecting plate A, a scraper A, a connecting plate B, a scraper B, a guide rod, a connecting circular plate and a reset spring. Two cleaning mechanisms are provided, and the two cleaning mechanisms are respectively fixed at the side wall positions of the two frame plates.

[0017] Furthermore, the fixed side plate is fixedly arranged at the side wall position of the frame plate, the front end of the fixed side plate is rotatably connected with a connecting plate A, the side edge of the connecting plate A is fixedly connected with a scraper A, a guide groove is opened on the fixed side plate, the guide groove of the fixed side plate is slidably connected with an inclined slider, one side of the inclined slider is rotatably connected with one end of a connecting frame, and the other end of the connecting frame extends to the side wall of the connecting plate A and is rotatably connected to the connecting plate A.

[0018] Furthermore, two guide rods are fixedly connected to one side of the connecting plate B, and the two guide rods both penetrate the fixed side plate and slide with the fixed side plate. A connecting circular plate is fixedly connected to one end of the guide rod, and one end of a return spring is fixedly connected to one side of the connecting circular plate, and the other end of the return spring is fixedly connected to the side wall of the fixed side plate. A scraper B is fixedly connected to the side wall of the connecting plate B, and one side of the inclined slider extends to one side of the connecting plate B and slides in contact with the connecting plate B.

[0019] Through the above-mentioned technical scheme of the present application, in order to solve the problem of detection error caused by the possible change in the distance between the infrared thermal imager and the transmission line when detecting a longer transmission line, the present application can perform mobile detection along the transmission line through the coordinated use of a walking vehicle, a supporting structure and a positioning detection component, thereby ensuring the distance between the transmission line and the infrared thermal imager, and further ensuring the accuracy of the detection data. Further, in order to solve the problem of low data error caused by excessive heat dissipation of the transmission line caused by gusts of wind outdoors and the reduction of measured temperature, through the coordinated use of the positioning detection component and the wind shielding mechanism, it is possible to automatically perform wind shielding in strong winds to reduce the problem of excessive heat dissipation of the transmission line caused by wind, which affects the detection effect of the infrared thermal imager. Furthermore, in order to address the problem of detection error caused by coverings attached to the surface of the transmission line, a cleaning mechanism for the line surface covering is designed. The cleaning mechanism can fully clean the attachments on the surface of the transmission line, thereby ensuring the detection accuracy of the infrared thermal imager. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;

[0022] Figure 2 A schematic diagram of the structure of a support structure of an embodiment of the present application;

[0023] Figure 3 This is a structural diagram of a positioning detection component according to an embodiment of the present application;

[0024] Figure 4 This is a schematic structural diagram of a fixed base according to an embodiment of the present application;

[0025] Figure 5 This is a schematic structural diagram of a wind shielding mechanism according to an embodiment of the present application;

[0026] Figure 6 This is a schematic diagram of the connection of a traction rope according to an embodiment of the present application;

[0027] Figure 7 This is a schematic diagram of the interior of a fixed cylinder according to an embodiment of the present application;

[0028] Figure 8 A connection diagram of a cleaning mechanism according to an embodiment of the present application;

[0029] Fig. 9 This is an overall schematic diagram of a cleaning mechanism according to an embodiment of the present application;

[0030] Fig.10 This is a schematic diagram of the back structure of a cleaning mechanism according to an embodiment of the present application.

[0031] In the figure:

[0032] Traveling vehicle 1;

[0033] Support structure 2, fixed tripod 201, rectangular sleeve rod 202, rectangular moving rod 203, supporting hydraulic cylinder 204, adjusting hydraulic cylinder 205, connecting tripod 206, supporting platform 207, adjusting motor 208, supporting sleeve rod 209, supporting moving rod 210, connecting spring 211;

[0034] Positioning detection component 3, fixed base 301, frame plate 302, guide roller 303, fixed plate 304, infrared thermal imager 305, airbag 306, movable slider 307, threaded rod 308, bevel gear A 309, servo motor 310, bevel gear B 311;

[0035] Wind shielding mechanism 4, fixed bracket 401, guide slide groove 402, rotating rod 403, spiral blade 404, rectangular fixed shell 405, winding wheel 406, traction rope 407, fixed cylinder 408, moving piston 409, moving guide rod 410, moving plate 411, spring 412, connecting hose 413;

[0036] Cleaning mechanism 5, fixed side plate 501, connecting plate A502, scraper A503, connecting plate B504, scraper B505, guide rod 506, connecting circular plate 507, return spring 508, connecting frame 509, inclined sliding block 510. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0040] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0041] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] See also Figure 1As shown, a transmission line arc fault detection and positioning device, the transmission line arc fault detection and positioning device comprises:

[0043] A traveling vehicle 1, wherein a support structure 2 is fixedly connected to the upper surface of the traveling vehicle 1, a positioning detection component 3 is fixedly connected to the top of the supporting structure 2, an infrared thermal imager 305 is fixedly arranged inside the positioning detection component 3, and the infrared thermal imager 305 is used to capture the thermal radiation signal of the transmission line;

[0044] A wind shielding mechanism 4, which is fixedly arranged at the side of the positioning detection component 3, and is connected to the positioning detection component 3, and is used to automatically shield the detection position from wind in gusty weather;

[0045] The cleaning mechanism 5 is fixedly arranged at the front side of the positioning detection component 3, and the cleaning mechanism 5 is used for automatically cleaning the attachments on the surface of the power transmission line.

[0046] Through the above technical scheme, through the coordinated use of the walking vehicle 1, the supporting structure 2 and the positioning detection component 3, mobile detection can be carried out along the transmission line, ensuring the distance between the transmission line and the infrared thermal imager, thereby ensuring the accuracy of the detection data. Further, in order to solve the problem of excessive heat dissipation of the transmission line caused by gusts of wind outdoors, and the reduction of the measured temperature, resulting in low data errors, through the coordinated use of the positioning detection component 3 and the wind shielding mechanism 4, it is possible to automatically perform wind shielding in strong winds to reduce the problem of excessive heat dissipation of the transmission line caused by wind, which affects the detection effect of the infrared thermal imager. Furthermore, in order to address the problem of detection errors caused by coverings attached to the surface of the transmission line, a cleaning mechanism 5 for the line surface covering is designed. The cleaning mechanism 5 can fully clean the attachments on the surface of the transmission line, thereby ensuring the detection accuracy of the infrared thermal imager.

[0047] For further technical solutions, see Figure 2As shown, the support structure 2 includes a fixed tripod 201, a rectangular sleeve rod 202, a rectangular moving rod 203, a supporting hydraulic cylinder 204, an adjusting hydraulic cylinder 205, a connecting tripod 206, a supporting platform 207, an adjusting motor 208, a supporting sleeve rod 209 and a supporting moving rod 210. The fixed tripod 201 is fixedly arranged on the upper surface of the walking vehicle 1, and the fixed tripod 201 is rotatably connected with the rectangular sleeve rod 202, and the rectangular moving rod 203 is slidably connected in the inner cavity of the rectangular sleeve rod 202. One end of the supporting hydraulic cylinder 204 is fixedly connected in the inner cavity of the rectangular sleeve rod 202, and the other end of the supporting hydraulic cylinder 204 is fixedly connected to the bottom end of the rectangular moving rod 203. Through the technical solution, the rectangular moving rod 203 can be driven to move by the extension and retraction of the supporting hydraulic cylinder 204, so as to realize the function of adjusting the height;

[0048] The two ends of the adjusting hydraulic cylinder 205 are rotatably connected with connecting brackets 206, one of which is fixedly connected to the side wall of the rectangular sleeve rod 202, and the other is fixedly connected to the upper surface of the walking vehicle 1. The top of the rectangular moving rod 203 is rotatably connected with a support platform 207, and the top side wall of the rectangular moving rod 203 is fixedly connected with an adjusting motor 208. The end of the output shaft of the adjusting motor 208 is fixedly connected to the support platform 207. The upper surface of the support platform 207 is fixedly connected to the upper surface of the walking vehicle 1. A support sleeve rod 209 is fixedly connected to the surface, and a support movable rod 210 is slidably connected in the inner cavity of the support sleeve rod 209. One end of a connecting spring 211 is fixedly connected to the top of the support movable rod 210, and the other end of the connecting spring 211 is fixedly connected to the support platform 207. Through the present technical solution, the rectangular sleeve rod 202 can be driven to tilt by adjusting the telescopic function of the hydraulic cylinder 205, thereby realizing the function of angle adjustment, and further can effectively adapt to arc fault detection of power transmission lines in different positions.

[0049] For specific technical solutions, please refer to Figure 3 and Figure 4As shown, the positioning detection component 3 includes a fixed base 301, a frame plate 302, a guide roller 303, a fixed plate 304, an infrared thermal imager 305, an airbag 306, a movable slider 307, a threaded rod 308, a bevel gear A309 and a servo motor 310. The fixed base 301 is fixedly arranged at the top end of the supporting movable rod 210. The frame plate 302 is slidably connected to both sides of the upper surface of the fixed base 301. An inner cavity is arranged inside the fixed base 301. The movable slider 307 is slidably connected to both sides of the inner cavity of the fixed base 301. The movable slider 307 is fixedly connected to the frame plate 302. The threaded rod 308 is rotatably connected to both sides of the inner cavity of the fixed base 301. The threaded rod 308 penetrates the movable slider 307 and is threadedly matched with the movable slider 307. A bevel gear A309 is fixedly connected to one end of the threaded rod 308, and a servo motor 310 is fixedly installed on the side wall of the fixed base 301. The end of the output shaft of the servo motor 310 extends into the inner cavity of the fixed base 301, and a bevel gear B311 is fixedly connected to the end of the output shaft of the servo motor 310. The bevel gear B311 and the bevel gear A309 are meshed with each other. According to the technical solution, the bevel gear B311 can be driven to rotate by the operation of the servo motor 310, so that the bevel gear A309 can be driven to rotate by the rotation of the bevel gear B311, and then the threaded rod 308 can be driven to rotate, and the movable slider 307 can be driven to move by the rotation of the threaded rod 308, and then the frame plate 302 can be driven to move, thereby realizing the moving function of the frame plate 302;

[0050] The inner walls of the inner cavities of the two frame plates 302 are rotatably connected with four guide rollers 303, and the four guide rollers 303 are respectively arranged on both sides of the inner walls of the frame plates 302. A fixing plate 304 is fixedly connected to the inner bottom surface of one of the frame plates 302, and an infrared thermal imager 305 is fixedly connected to the upper surface of the fixing plate 304. Air bags 306 are fixedly connected to the side positions of both sides of the frame plates 302. Through the technical solution, when it is necessary to perform arc fault detection on the transmission line, the frame plate 302 is moved to the position of the transmission line by adjusting the support structure 2, and the two frame plates 302 are moved and merged. Together, the transmission line is set between the two guide rollers 303. The movement of the traveling vehicle 1 can drive the frame plate 302 to move, so that the frame plate 302 moves along the transmission line, and then the infrared thermal imager 305 performs detection along the transmission line. When an arc fault occurs in the transmission line, the temperature around the fault point will increase significantly due to the high temperature generated by the arc discharge. The infrared thermal imager captures the thermal radiation signal, converts it into an electrical signal, and then converts it into a visible thermal image after processing. The maintenance personnel can find the abnormally high temperature area by observing the temperature distribution on the thermal image, thereby determining the location of the arc fault.

[0051] As a preferred technical solution, please refer to Figure 5 , Figure 6 and Figure 7As shown, the wind shielding mechanism 4 includes a fixed bracket 401, a guide slot 402, a rotating rod 403, a spiral blade 404, a rectangular fixed shell 405, a winding wheel 406, a traction rope 407, a fixed cylinder 408, a movable piston 409, a movable guide rod 410, a movable plate 411 and a spring 412. The fixed bracket 401 is fixedly arranged on the side of the fixed base 301, and a guide slot 402 is provided on the fixed bracket 401. The rotating rod 403 is rotatably connected to the side wall of the bottom side of the fixed bracket 401, and the spiral blade 404 is fixedly connected to the arc-shaped wall of the rotating rod 403. The other side of the fixed bracket 401 is fixedly connected to the rectangular fixed shell 405, and one end of the rotating rod 403 extends into the inner cavity of the rectangular fixed shell 405. There is a winding wheel 406, and the winding wheel 406 is fixedly connected to one end of the rotating rod 403. One end of the traction rope 407 is wound and connected at the arc wall of the winding wheel 406. The other end of the traction rope 407 passes through the upper wall of the inner cavity of the rectangular fixed shell 405. The upper end of the traction rope 407 is fixedly connected to the movable plate 411. The movable plate 411 is arranged at the position of the guide slide groove 402 and slides with the guide slide groove 402. Through this technical solution, when gusts of wind occur outdoors, the wind will cause the spiral blade 404 to rotate, thereby driving the rotating rod 403 to rotate through the spiral blade 404, and then driving the winding wheel 406 to rotate, so that the rotation of the winding wheel 406 can drive the traction rope 407 to be wound and pulled, thereby driving the movable plate 411 to move;

[0052] The fixed cylinder 408 is fixedly arranged at the side wall position of the rectangular fixed shell 405, and a movable piston 409 is slidably connected in the inner cavity of the fixed cylinder 408, and one end of a movable guide rod 410 is fixedly connected to the upper surface of the movable piston 409, and the other end of the movable guide rod 410 penetrates the upper wall of the inner cavity of the fixed cylinder 408 and extends outside the wall, and the top of the movable guide rod 410 is fixedly connected to the bottom surface of the movable plate 411, and one end of a spring 412 is fixedly connected to the upper surface of the fixed cylinder 408, and the other end of the spring 412 is fixedly connected to the bottom surface of the movable plate 411, and one end of a connecting hose 413 is fixedly connected to the bottom side of the inner cavity of the fixed cylinder 408, and the other end of the connecting hose 413 extends into the inner cavity of the airbag 306 and is connected to the airbag 306. 6 are fixedly connected. Through the technical solution, when there is gusty wind outdoors, the wind causes the rotating rod 403 to rotate, thereby causing the winding wheel 406 to rotate, thereby driving the traction rope 407 to be pulled and moved, and then the movement of the traction rope 407 can drive the moving plate 411 to move downward, thereby driving the moving guide rod 410 to move, and then driving the moving piston 409 to move, so that the gas in the inner cavity of the fixed cylinder 408 is transported to the inner cavity of the airbag 306 through the connecting hose 413, so that the airbag 306 is fully expanded, and the expanded airbag 306 can play a role of sealing and shielding on both sides of the positioning detection component 3, thereby reducing the rapid loss of heat caused by wind, and avoiding the problem of affecting the detection effect of the infrared thermal imager.

[0053] For further technical solutions, see Figure 8 , Fig. 9 and Fig.10 As shown, the cleaning mechanism 5 includes a fixed side plate 501, a connecting plate A502, a scraper A503, a connecting plate B504, a scraper B505, a guide rod 506, a connecting circular plate 507 and a return spring 508. Two cleaning mechanisms 5 are provided, and the two cleaning mechanisms 5 are respectively fixed at the side wall positions of the two frame plates 302;

[0054] The fixed side plate 501 is fixedly arranged at the side wall position of the frame plate 302, the front end of the fixed side plate 501 is rotatably connected with a connecting plate A502, the side edge of the connecting plate A502 is fixedly connected with a scraper A503, a guide slot is provided on the fixed side plate 501, the guide slot of the fixed side plate 501 is slidably connected with an inclined slider 510, one side of the inclined slider 510 is rotatably connected with one end of a connecting frame 509, the other end of the connecting frame 509 extends to the side wall of the connecting plate A502 and is rotatably connected to the connecting plate A502, through the technical solution, through the setting of the scraper A503, when the transmission line is inspected, the scraper A503 can be in contact with the surface of the transmission line during the movement along the transmission line, so that the surface of the transmission line can be scraped, which plays a role in cleaning the attachments;

[0055] Two guide rods 506 are fixedly connected to one side of the connecting plate B504, and the two guide rods 506 both penetrate the fixed side plate 501 and slide with the fixed side plate 501. A connecting circular plate 507 is fixedly connected to one end of the guide rod 506, and one end of a return spring 508 is fixedly connected to one side of the connecting circular plate 507, and the other end of the return spring 508 is fixedly connected to the side wall of the fixed side plate 501. A scraper B505 is fixedly connected to the side wall of the connecting plate B504, and one side of the inclined slider 510 extends to one side of the connecting plate B504 and slides in contact with the connecting plate B504. Through the technical solution, when the positioning detection component 3 is moved along the transmission line for detection, the scraper A503 can scrape the surface of the transmission line, so that the surface attachments can be scraped and cleaned. When encountering relatively tight attachments, the scraper A503 cannot fully scrape them off. At the same time, due to the obstruction of the attachments, when the cleaning mechanism 5 continues to move forward, the connecting plate A502 will flip inward due to the obstruction of the attachments, thereby pushing the connecting frame 509 to move, causing the inclined slider 510 to move. Due to the movement of the inclined slider 510 and the continuous squeezing of the connecting plate B504, the connecting plate B504 moves, causing the scraper B505 to further press against the charging line. Since a clamping force is further generated, the scraping force is further enhanced, so that when the scraper B505 contacts the attachments, it can scrape and clean more fully, making the cleaning more thorough, avoiding the problem of difficulty in cleaning due to the attachments being firmly fixed, thereby avoiding the detection error problem caused by the covering attached to the surface of the transmission line.

[0056] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A transmission line arc fault detection and positioning device, characterized in that: The transmission line arc fault detection and positioning device comprises: A traveling vehicle (1), wherein a support structure (2) is fixedly connected to the upper surface of the traveling vehicle (1), a positioning detection component (3) is fixedly connected to the top of the supporting structure (2), an infrared thermal imager (305) is fixedly arranged inside the positioning detection component (3), and the infrared thermal imager (305) is used to capture thermal radiation signals of a power transmission line; A wind shielding mechanism (4), the wind shielding mechanism (4) being fixedly arranged at a side position of the positioning detection component (3), the wind shielding mechanism (4) being connected to the positioning detection component (3), and the wind shielding mechanism (4) being used to automatically shield the detection position from wind in gusty weather; A cleaning mechanism (5) is fixedly arranged at the front side of the positioning detection component (3), and is used for automatically cleaning attachments on the surface of the power transmission line.

2. The transmission line arc fault detection and positioning device according to claim 1, characterized in that: The support structure (2) comprises a fixed tripod (201), a rectangular sleeve rod (202), a rectangular moving rod (203), a supporting hydraulic cylinder (204), an adjusting hydraulic cylinder (205), a connecting tripod (206), a supporting platform (207), an adjusting motor (208), a supporting sleeve rod (209) and a supporting moving rod (210); the fixed tripod (201) is fixedly arranged on the upper surface of the walking vehicle (1); the rectangular sleeve rod (202) is rotatably connected to the fixed tripod (201); the rectangular moving rod (203) is slidably connected in the inner cavity of the rectangular sleeve rod (202); one end of the supporting hydraulic cylinder (204) is fixedly connected in the inner cavity of the rectangular sleeve rod (202); and the other end of the supporting hydraulic cylinder (204) is fixedly connected to the bottom end of the rectangular moving rod (203).

3. The transmission line arc fault detection and positioning device according to claim 2, characterized in that: Both ends of the adjusting hydraulic cylinder (205) are rotatably connected to connecting legs (206), one of the connecting legs (206) is fixedly connected to the side wall of the rectangular sleeve rod (202), and the other connecting legs (206) is fixedly connected to the upper surface of the walking vehicle (1); the top end of the rectangular moving rod (203) is rotatably connected to a support platform (207); the top side wall of the rectangular moving rod (203) is fixedly connected to an adjusting motor (208); the end of the output shaft of the adjusting motor (208) is fixedly connected to the support platform (207); the upper surface of the support platform (207) is fixedly connected to a supporting sleeve rod (209); a supporting moving rod (210) is slidably connected in the inner cavity of the supporting sleeve rod (209); one end of a connecting spring (211) is fixedly connected to the top end of the supporting moving rod (210); the other end of the connecting spring (211) is fixedly connected to the support platform (207).

4. The transmission line arc fault detection and positioning device according to claim 1, characterized in that: The positioning detection component (3) comprises a fixed base (301), a frame plate (302), a guide roller (303), a fixed plate (304), an infrared thermal imager (305), an airbag (306), a movable slider (307), a threaded rod (308), a bevel gear A (309) and a servo motor (310). The fixed base (301) is fixedly arranged at the top end of the supporting movable rod (210). The frame plate (302) is slidably connected to both sides of the upper surface of the fixed base (301). An inner cavity is arranged inside the fixed base (301). The movable slider (307) is slidably connected to both sides of the inner cavity of the fixed base (301). The movable slider (307) is slidably connected to the frame plate (302). 302), threaded rods (308) are rotatably connected at both sides of the inner cavity of the fixed base (301), the threaded rods (308) penetrate the movable slider (307) and are threadedly matched with the movable slider (307), a bevel gear A (309) is fixedly connected at one end of the threaded rod (308), a servo motor (310) is fixedly installed on the side wall of the fixed base (301), the output shaft end of the servo motor (310) extends into the inner cavity of the fixed base (301), a bevel gear B (311) is fixedly connected at the output shaft end of the servo motor (310), and the bevel gear B (311) and the bevel gear A (309) are meshed with each other.

5. The transmission line arc fault detection and positioning device according to claim 4, characterized in that: Four guide rollers (303) are rotatably connected to the inner walls of the inner cavities of the two frame plates (302), and the four guide rollers (303) are respectively arranged on both sides of the inner walls of the frame plates (302). A fixing plate (304) is fixedly connected to the inner bottom surface of one of the frame plates (302), and an infrared thermal imager (305) is fixedly connected to the upper surface of the fixing plate (304). Air bags (306) are fixedly connected to the side edges of both sides of the frame plates (302).

6. The transmission line arc fault detection and positioning device according to claim 1, characterized in that: The wind shielding mechanism (4) comprises a fixed bracket (401), a guide slot (402), a rotating rod (403), a spiral blade (404), a rectangular fixed shell (405), a winding wheel (406), a traction rope (407), a fixed cylinder (408), a movable piston (409), a movable guide rod (410), a movable plate (411) and a spring (412); the fixed bracket (401) is fixedly arranged on the side of the fixed base (301); the fixed bracket (401) is provided with a guide slot (402); the bottom side wall of the fixed bracket (401) is rotatably connected to the rotating rod (403); the arc-shaped wall of the rotating rod (403) is fixedly connected to the spiral blade (404); the fixed bracket (4 01), a rectangular fixed shell (405) is fixedly connected to the other side, one end of the rotating rod (403) extends into the inner cavity of the rectangular fixed shell (405), a winding wheel (406) is rotatably connected in the inner cavity of the rectangular fixed shell (405), the winding wheel (406) is fixedly connected to one end of the rotating rod (403), one end of a traction rope (407) is wound and connected at the arc-shaped wall of the winding wheel (406), the other end of the traction rope (407) passes through the upper wall of the inner cavity of the rectangular fixed shell (405), the upper end of the traction rope (407) is fixedly connected to the movable plate (411), and the movable plate (411) is arranged at the position of the guide slot (402) and is slidably matched with the guide slot (402).

7. The transmission line arc fault detection and positioning device according to claim 6, characterized in that: The fixed cylinder (408) is fixedly arranged at the side wall position of the rectangular fixed shell (405); a movable piston (409) is slidably connected in the inner cavity of the fixed cylinder (408); one end of a movable guide rod (410) is fixedly connected to the upper surface of the movable piston (409); the other end of the movable guide rod (410) penetrates the upper wall of the inner cavity of the fixed cylinder (408) and extends outside the wall; the top end of the movable guide rod (410) is fixedly connected to the bottom surface of the movable plate (411); one end of a spring (412) is fixedly connected to the upper surface of the fixed cylinder (408); the other end of the spring (412) is fixedly connected to the bottom surface of the movable plate (411); one end of a connecting hose (413) is fixedly connected to the bottom side of the inner cavity of the fixed cylinder (408); the other end of the connecting hose (413) extends into the inner cavity of the airbag (306) and is fixedly connected to the airbag (306).

8. The transmission line arc fault detection and positioning device according to claim 1, characterized in that: The cleaning mechanism (5) comprises a fixed side plate (501), a connecting plate A (502), a scraper A (503), a connecting plate B (504), a scraper B (505), a guide rod (506), a connecting circular plate (507) and a return spring (508). Two cleaning mechanisms (5) are provided, and the two cleaning mechanisms (5) are respectively fixed at the side wall positions of the two frame plates (302).

9. The transmission line arc fault detection and positioning device according to claim 8, characterized in that: The fixed side plate (501) is fixedly arranged at the side wall position of the frame plate (302); the front end of the fixed side plate (501) is rotatably connected to the connecting plate A (502); the side edge of the connecting plate A (502) is fixedly connected to the scraper A (503); a guide groove is provided on the fixed side plate (501); the guide groove of the fixed side plate (501) is slidably connected to an inclined sliding block (510); one side of the inclined sliding block (510) is rotatably connected to one end of a connecting frame (509); the other end of the connecting frame (509) extends to the side wall of the connecting plate A (502) and is rotatably connected to the connecting plate A (502).

10. The transmission line arc fault detection and positioning device according to claim 9, characterized in that: Two guide rods (506) are fixedly connected to one side of the connecting plate B (504), and the two guide rods (506) both penetrate the fixed side plate (501) and are slidably matched with the fixed side plate (501). A connecting circular plate (507) is fixedly connected to one end of the guide rod (506), and one end of a return spring (508) is fixedly connected to one side of the connecting circular plate (507), and the other end of the return spring (508) is fixedly connected to the side wall of the fixed side plate (501). A scraper plate B (505) is fixedly connected to the side wall of the connecting plate B (504), and one side of the inclined sliding block (510) extends to one side of the connecting plate B (504) and is in slidable contact with the connecting plate B (504).

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