Power transmission line insulator monitoring device

Abstract

The invention discloses a power transmission line insulator monitoring device, and belongs to the technical field of insulator flashover monitoring. A power transmission line insulator monitoring device comprises a current detection module used for detecting leakage current and a visual detection module used for monitoring dirt or cracks on the surface of an insulator, and the current detection module and the visual detection module are both electrically connected with a control module. The current detection module comprises a detection ring mounted at one end, far away from the cable, of the insulator and a signal processing unit; according to the invention, the current detection module and the visual detection module are used for detecting the insulator, and the detection result is fed back to the control center through the control module and the data transmission module, so that the actual operation condition of the insulator can be mastered in time, and potential problems can be solved in time.

Description

Technical Field

[0001] The present invention relates to the technical field of insulator flashover monitoring, and in particular to a transmission line insulator monitoring device. Background Art

[0002] Transmission line insulators are crucial components of power systems, ensuring safe and stable operation. Their primary functions are electrical insulation and mechanical support. Various issues can arise during insulator operation, such as cracks, breakage, and aging. When insulators are exposed to overvoltage, flashover can occur. Prolonged flashover can cause unexpected power outages.

[0003] Since insulators are installed at high positions on transmission line towers, there are a large number of insulators and the lines are complex, it is difficult for line maintenance personnel to conduct actual measurements one by one to understand the working status of the line insulators and cannot grasp the actual operation of the insulators. In addition, traditional detection methods have a long detection cycle and it is difficult to detect these potential problems in a timely manner. There is a lack of real-time monitoring means and it is impossible to take timely measures to deal with them. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art of lacking real-time monitoring means and being unable to take timely measures to deal with the problems, and to propose a transmission line insulator monitoring device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A transmission line insulator monitoring device includes a current detection module for detecting leakage current and a visual detection module for monitoring contamination or cracks on the insulator surface, wherein both the current detection module and the visual detection module are electrically connected to a control module; The current detection module includes a detection ring installed at an end of the insulator away from the cable and a signal processing unit; A visual detection component is provided on one side of the insulator, and the visual detection component includes a connecting frame. The visual detection module is provided at the bottom of the connecting frame. The connecting frame is L-shaped, and the other end of the connecting frame is rotated on the upper surface of the tower through a fixing seat.

[0006] In some embodiments, the control module is electrically connected to a temperature detection module, a positioning module, and a data transmission module, and the temperature detection module is used to detect the ambient temperature.

[0007] In some embodiments, a flushing device is also included for promptly cleaning dirt on the surface of the insulator. The flushing device includes a flushing ring for flushing the insulator and a segmented cover for segmented flushing of the insulator. The flushing ring and the segmented cover are both made of insulating material.

[0008] In some embodiments, the flushing ring includes two semicircular hollow tubes and a plurality of high-pressure nozzles installed on the surface of the hollow tubes. The plurality of high-pressure nozzles are distributed on the surface of the hollow tubes in three layers, namely, upper, middle and lower layers. The water outlet angles of the high-pressure nozzles in the upper, middle and lower layers are different, so as to spray water from multiple angles.

[0009] In some embodiments, the flushing device also includes a lifting frame hinged to the lower surface of the pole tower, the lifting frame and the flushing ring are located on one side of the insulator, a threaded rod is rotated on the surface of the lifting frame, and a moving block is threadedly connected to the surface of the threaded rod, and one end of the flushing ring is hinged to the side of the moving block close to the insulator.

[0010] In some embodiments, two sliding rods are fixed to one end of the flushing ring near the lifting frame, and two limiting grooves are provided on the surface of the lifting frame to cooperate with the sliding rods. The two limiting grooves are vertically arranged, and the upper ends of the two limiting grooves are provided with guide grooves for automatically opening the flushing ring.

[0011] In some embodiments, the segmented cover is located in the lower middle part of the insulator, the segmented cover is two half-conical covers, connecting arms are fixed on the surface of the segmented cover, a rubber ring is fixed on the top of the segmented cover, and a guide tube is provided at the intersection of the segmented covers.

[0012] In some embodiments, the segmented cover is separated and merged by an opening and closing assembly, and the opening and closing assembly includes a guide rod fixed to the side of the lifting frame away from the insulator and a slide symmetrically sliding on the surface of the guide rod, and the connecting arm is hinged to the end of the slide away from each other through a rotating shaft, and the surface of the rotating shaft is provided with a torsion spring for driving the connecting arm and the segmented cover to merge, and the surface of the connecting arm is fixed with a first pull rope that drives the segmented cover to rotate.

[0013] In some embodiments, the connecting frame includes a first frame body and a second frame body hinged at one end of the first frame body, and a traction assembly for rotating the second frame body is provided on the surface of the pole tower, and the traction assembly includes a swing arm rotating on both sides of the pole tower and a support rod rotating on the swing arm close to one end of the second frame body, and a second pull rope is fixed to the other end of the swing arm for driving the support rod to support the second frame, and the other end of the second pull rope is passed around two guide wheels and fixed to the surface of the lifting frame.

[0014] In some embodiments, the flushing device further includes a drying assembly for preventing the insulator from freezing in winter, and the drying assembly includes two drying tubes fixed on the upper surface of the flushing ring.

[0015] Compared with the prior art, the present invention provides a transmission line insulator monitoring device with the following beneficial effects.

[0016] 1. The present invention detects insulators through a current detection module and a visual detection module, and feeds back information to a control center through a control module and a data transmission module, so that the actual operating conditions of the insulators can be grasped in a timely manner and potential problems can be solved in a timely manner.

[0017] 2. The present invention provides a flushing device. When the surface of the insulator is too dirty, the flushing ring flushes the insulator in time. The insulator is segmented and isolated by the segmented cover. The purpose of segmented flushing can be achieved during the flushing process, thereby avoiding flashover during the flushing process.

[0018] Other advantages, objects and features of the present invention will be described in part in the following description; and in part will be apparent to those skilled in the art based on an examination of the following; or may be taught from the practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the process of the present invention.

[0020] Figure 2 This is a schematic structural diagram of the initial state of the flushing device in the present invention.

[0021] Figure 3 This is a schematic structural diagram of the flushing device in the present invention in use.

[0022] Figure 4 It is a schematic diagram of the axial structure of the lifting frame in the present invention.

[0023] Figure 5 This is a schematic structural diagram of the flushing ring in the present invention in the open state.

[0024] Figure 6 It is a front view structural schematic diagram of the flushing ring in the present invention.

[0025] Figure 7 It is a structural schematic diagram of the sliding rod and the limiting groove in the present invention.

[0026] Figure 8 It is a structural schematic diagram of the opening and closing component in the present invention.

[0027] Figure 9 It is a structural schematic diagram of the segmented cover in the present invention.

[0028] Figure 10 It is a schematic structural diagram of the segmented cover in the separated state in the present invention.

[0029] Figure 11 Schematic diagram of the structure of the visual detection component in the present invention.

[0030] Figure 12It is a schematic diagram of the top structure of the flushing device in the present invention.

[0031] In the picture: 1. Tower; 2. Insulator; 3. Lifting frame; 301. Threaded rod; 302. Moving block; 4. Flushing ring; 401. High-pressure nozzle; 402. Water tank; 403. Water pump; 5. Sliding rod; 6. Limiting groove; 7. Segmented cover; 701. Connecting arm; 702. Rubber ring; 703. Diversion pipe; 8. Opening and closing assembly; 801. Guide rod; 802. Sliding frame; 803. Torsion spring; 804. First pull rope; 80 5. Guide ring; 9. Visual inspection assembly; 901. Connecting frame; 902. Fixed seat; 10. Traction assembly; 1001. Swing arm; 1002. Support rod; 1003. Second pull rope; 1004. Guide wheel; 11. Drying assembly; 1101. Drying tube; 1102. Air pump; 1103. Heating box; 12. Support assembly; 1201. Support frame; 1202. Adjustment ring; 1203. Support spring. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Reference Figure 1-12 A transmission line insulator monitoring device includes a current detection module for detecting leakage current and a visual detection module for monitoring contamination or cracks on the surface of the insulator 2. The current detection module and the visual detection module are both electrically connected to a control module. The control module is electrically connected to a temperature detection module, a positioning module, and a data transmission module. The control module also includes a flushing device for promptly cleaning contamination on the surface of the insulator 2. The current detection module includes a detection ring installed at the end of the insulator 2 away from the cable and a signal processing unit. The detection ring adopts a Rogowski coil, and the signal processing unit includes a preamplifier and a bandpass filter. The visual inspection module includes a visual camera and a pan / tilt head located on one side of the insulator 2; The control module uses the Xilinx Zynq UltraScale+ MPSoC processor; It can be understood that the leakage current on the surface of the insulator 2 is collected in real time through the current detection module, and the collected current information is amplified and filtered by the signal processing unit and then transmitted to the control module. The control module calculates the current information and extracts the effective flashover current value to determine whether the insulator 2 flashes, calculates the flashover current intensity and the number of flashovers of the insulator 2, and feeds back to the control center through the data transmission module; the degree of contamination on the surface of the insulator 2 and whether cracks are generated are monitored in real time through the visual detection module. When there is too much contamination, the flushing device is activated by the control module to perform flushing, so as to achieve the purpose of taking cleaning measures in time. When cracks occur on the surface of the insulator 2, the control module and the data transmission module are used to feed back to the control center, and the position of the insulator 2 where the cracks occur is determined by the positioning module, so that maintenance personnel can perform repairs in time. The insulator 2 is monitored by the current detection module and the visual detection module, so that the actual operation status of the insulator 2 can be grasped in time, and potential problems can be solved in time.

[0034] Specifically, the flushing device includes a lifting frame 3 hinged on the lower surface of the tower 1 and a flushing ring 4 installed on the surface of the lifting frame 3. The lifting frame 3 and the flushing ring 4 are located on one side of the insulator 2. The lifting frame 3 is swung by an electric push rod. A threaded rod 301 rotates on the surface of the lifting frame 3. A moving block 302 is threadedly connected to the surface of the threaded rod 301. The threaded rod 301 is driven to rotate by a drive motor fixed to the lower surface of the lifting frame 3. One end of the flushing ring 4 is hinged to the side of the moving block 302 close to the insulator 2. The flushing ring 4 is made of an insulating material, preferably epoxy resin. The flushing ring 4 includes two semicircular hollow tubes and a plurality of high-pressure nozzles 401 installed on the surface of the hollow tubes. The plurality of high-pressure nozzles 401 are distributed on the surface of the hollow tubes in three layers, namely, upper, middle and lower layers. The high-pressure nozzles 401 located on the upper layer are used to spray water obliquely upward, the high-pressure nozzles 401 located in the middle layer are used to spray water horizontally, and the high-pressure nozzles 401 located in the lower layer are used to spray water obliquely downward. A water tank 402 is fixed on the upper surface of the tower 1, and a water pump 403 is fixed on the upper surface of the water tank 402. The water inlet of the water pump 403 is connected to the water tank 402, and the water outlet of the water pump 403 is connected to two hoses through a three-way valve. The other ends of the two hoses are respectively connected to the two hollow tubes, and a water inlet is provided on the side of the water tank 402.

[0035] It can be understood that when the visual inspection module detects that there is too much dirt on the surface of the insulator 2, a signal is sent through the control module to cause the electric push rod to drive the lifting frame 3 to swing to vertical, and the flushing ring 4 is placed around the insulator 2. The deionized water in the water tank 402 is pumped out by the water pump 403 and transported to the hollow tube through the hose. Under the action of multiple high-pressure nozzles 401, it is sprayed at different angles to flush the insulator 2 at multiple angles and clean the dirt on the surface of the insulator 2. At the same time, the control module sends a signal to cause the drive motor to drive the threaded rod 301 to rotate, so that the moving block 302 drives the flushing ring 4 to flush the insulator 2 up and down. Multi-angle high-pressure flushing can avoid dead corners. By setting up the water tank 402, the water tank 402 is used as a temporary storage container, and the deionized water is transported from the ground to the water tank 402, and then transported to the flushing ring 4 through the water pump 403, which can effectively ensure the water outlet pressure and avoid directly transporting water from the ground to the flushing ring 4, which causes the water flow to be unable to be sprayed out at high pressure, affecting the flushing effect.

[0036] Specifically, two sliding rods 5 are fixed to one end of the flushing ring 4 near the lifting frame 3. Two limiting grooves 6 are provided on the surface of the lifting frame 3. The two sliding rods 5 always slide inside the two limiting grooves 6. The two limiting grooves 6 are vertically arranged, and the upper ends of the two limiting grooves 6 are provided with guide grooves for automatically opening the flushing ring 4.

[0037] It can be understood that when the flushing ring 4 moves to the top of the lifting frame 3, the cooperation between the guide groove and the slide rod 5 drives the flushing ring 4 to rotate, so that the flushing ring 4 is automatically separated, avoiding the interference between the flushing ring 4 and the insulator 2 when the lifting frame 3 is retracted. When the flushing ring 4 moves downward, the slide rod 5 enters the limit groove 6, and the vertical limit groove 6 drives the slide rod 5 and the flushing ring 4 to rotate, thereby closing the flushing ring 4 for flushing.

[0038] Specifically, a segmented cover 7 for segmented flushing of the insulator 2 is provided on the surface of the lifting frame 3. The segmented cover 7 is separated and merged by an opening and closing assembly 8. The segmented cover 7 is made of an insulating material, preferably EPDM. The segmented cover 7 is located in the lower middle part of the insulator 2. The segmented cover 7 is composed of two half-conical covers. Connecting arms 701 are fixed to the surface of the segmented cover 7. A rubber ring 702 is fixed to the top of the segmented cover 7. A guide pipe 703 is provided at the intersection of the segmented cover 7. The guide pipe 703 is located below the connection seam of the two conical covers and is fixed to the lower surface of one of the conical covers. The bottom diameter of the segmented cover 7 is larger than the maximum diameter of the insulator 2. The opening and closing assembly 8 includes a guide rod 801 fixed to the side of the lifting frame 3 away from the insulator 2 and a slide 802 sliding symmetrically on the surface of the guide rod 801. The connecting arm 701 is hinged to the end of the slide 802 away from each other through a rotating shaft. The surface of the rotating shaft is provided with a torsion spring 803 for driving the connecting arm 701 and the segmented cover 7 to merge. A first pull rope 804 for driving the segmented cover 7 to rotate is fixed on the surface of the connecting arm 701. A guide ring 805 is fixed to the end of the connecting arm 701 close to the slide 802. The other end of the first pull rope 804 passes through the guide ring 805 and is fixed to one end of the guide rod 801. A double-headed push rod is provided above the two slides 802 for driving the two slides 802 to slide in opposite directions at the same time. The double-headed push rod is fixed to the surface of the lifting frame 3.

[0039] It is understandable that, since the flushing of the insulator 2 is an electrified flushing, the use of deionized water can reduce the conduction of current and reduce the flashover phenomenon during the flushing process. However, the sewage generated by flushing the dirt causes the resistance of the plasma water to decrease, which increases the risk of flashover during the flushing process. Therefore, by setting the segmented cover 7, the insulator 2 is segmented and isolated by the segmented cover 7 during flushing, so that the flushing ring 4 first flushes the insulator 2 above the segmented cover 7, and the sewage generated by the flushing drips downward from the four sides of the insulator 2 through the segmented cover 7, avoiding flowing from the surface of the insulator 2 to the cable to cause conductivity, so that the bottom of the insulator 2 remains dry and avoids the flashover phenomenon. After the flushing ring 4 finishes flushing the upper half of the insulator 2, the segmented cover 7 is opened, and the flushing ring 4 moves to the lower half of the insulator 2 for flushing. At this time, the upper half of the insulator 2 remains dry. When flushing the lower half, the resistance of the upper half is too large, which can effectively reduce the occurrence of flashover. The control module sends a signal to cause the double-headed push rod to drive the slide 802 to slide on the surface of the guide rod 801, so that the slide 802 drives the segmented cover 7 to separate. In this process, the connecting arm 701 is pulled by the first pull rope 804, so that the segmented cover 7 rotates through the connecting arm 701 and the rotating shaft, thereby realizing the segmented cover 7 to separate while sliding, so that the segmented cover 7 increases the separation distance within the limited sliding stroke, and avoids the segmented cover 7 and the flushing ring 4 from generating motion interference; after the segmented cover 7 is merged, the segmented cover 7 is located between the sheds of the insulator 2, and the rubber ring 702 abuts against the lower surface of the sheds of the insulator 2, so that the sewage dripping from the sheds flows from the surface of the segmented cover 7 to the surrounding area, avoiding falling to the surface of the insulator 2 in the lower half. By providing a guide pipe, when sewage penetrates from the joint of the segmented cover 7, it is blocked by the guide pipe and diverted to the outer ring of the segmented cover 7, avoiding the sewage from penetrating into the lower half of the insulator 2, causing dirt and moisture, thereby reducing resistance and increasing conductivity.

[0040] Specifically, a visual inspection component 9 is provided on the side of the insulator 2 away from the lifting frame 3. The visual inspection component 9 includes a visual camera provided at the bottom of the connecting frame 901. The visual camera is mounted at the bottom of the connecting frame 901 through a pan / tilt platform. The connecting frame 901 is L-shaped. The other end of the connecting frame 901 is rotated on the upper surface of the tower 1 through a fixed base 902. The rotating axis of the fixed base 902 is coaxially arranged with the insulator 2. A driving motor for driving the connecting frame 901 to rotate is provided on the lower surface of the fixed base 902. The connecting frame 901 includes a first frame body and a second frame body, the second frame body is hinged at one end of the first frame body, and a traction assembly 10 for rotating the second frame body is provided on the surface of the tower 1. The traction assembly 10 includes a swing arm 1001 rotating on both sides of the tower 1 and a support rod 1002 rotating on the swing arm 1001 close to one end of the second frame body. A second pull rope 1003 is fixed to the other end of the swing arm 1001. There are two guide wheels 1004 rotating on the surface of the tower 1, and the other end of the second pull rope 1003 is fixed to the surface of the lifting frame 3 by passing through the two guide wheels 1004.

[0041] It can be understood that the connecting frame 901 is driven by the driving motor to rotate on the surface of the fixing seat 902, so that the connecting frame 901 drives the visual camera to detect the insulator 2 from multiple angles, avoiding the occurrence of blind spots in detection; by setting the traction component 10, when the lifting frame 3 is in the initial state, the second pull rope 1003 is in a relaxed state, the swing arm 1001 is placed on the surface of the tower 1 due to the weight of the support rod 1002, and the connecting frame 901 is in a vertical state, so that the visual camera is at the optimal detection distance. When the insulator 2 needs to be flushed, the lifting frame 3 is rotated to vertical. During the rotation process, the lifting frame 3 pulls the second pull rope 1003 to pull one end of the swing arm 1001, so that the swing arm 1001 drives the support rod 1002 to rotate upward, and the second frame of the connecting frame 901 is driven to rotate through the support rod 1002, so that the visual camera is away from the insulator 2, avoiding the sewage generated when flushing the insulator 2 from splashing onto the surface of the visual camera, causing it to be dirty and affecting the detection of the insulator 2.

[0042] Specifically, the flushing component also includes a drying component 11 for drying the insulator 2. The drying component 11 includes two drying tubes 1101 fixed on the upper surface of the flushing ring 4. Multiple air outlets are provided on the surfaces of the two drying tubes 1101. An air pump 1102 is fixed on the upper surface of the water tank 402. The air outlet of the air pump 1102 is connected to a heating box 1103. An electric heating wire is provided inside the heating box 1103. Two hoses are connected to the surface of the heating box 1103. The other ends of the two hoses are connected to the two drying tubes 1101.

[0043] It is understandable that in winter, the residual moisture on the surface of the insulator 2 is easy to freeze, increasing the risk of flashover. Therefore, through the operation of the air pump 1102 and the heating box 1103, the air is transported to the drying pipe 1101 under the action of the hose, and the drying pipe 1101 dries the insulator 2. When the weather is hot, the moisture evaporates quickly and will not freeze. Therefore, there is no need for drying, reducing energy consumption.

[0044] Specifically, a support assembly 12 for supporting the hose is provided on the upper surface of the tower 1. The support assembly 12 includes a support frame 1201 hinged on the upper surface of the tower 1 and an adjustment ring 1202 sliding on the surface of the support frame 1201. A spring is provided inside the support frame 1201 to make the adjustment ring 1202 slide away from the support frame 1201. A support spring 1203 is fixed on the upper surface of the tower 1. The support spring 1203 is fixed on the surface of the support frame 1201, and multiple hoses pass through the adjustment ring 1202.

[0045] It can be understood that by setting up the support assembly 12, multiple hoses can be supported to keep them taut, avoiding bending of the hoses and affecting their use. The overall length of the support assembly 12 can be adjusted by sliding the adjustment ring 1202 on the surface of the support frame 1201. The support frame 1201 is supported by the support spring 1203, so that the support assembly 12 can adjust the angle according to the use of the hose to maintain flexibility.

[0046] In the present invention, the flashover condition on the surface of the insulator 2 is detected by the current detection module and fed back to the control center. The contamination condition on the surface of the insulator 2 is detected by the visual detection module. When there is too much contamination, the control module causes the drive motor to drive the threaded rod 301 to rotate, so that the flushing ring 4 is close to the segmented cover 7. The oblique nozzle of the flushing ring 4 is first used to clean the contamination on the surface of the segmented cover 7 to avoid flashover when the segmented cover 7 is close to the insulator 2; then the control module sends a signal to the electric push rod to drive the lifting frame 3 to swing to vertical, and the flushing ring 4 is put around the insulator 2. The control module sends a signal to the drive motor to drive the threaded rod 301 The flushing ring 4 is rotated, so that the moving block 302 drives the flushing ring 4 to move downward, and the slide bar 5 enters the limiting groove 6. The vertical limiting groove 6 drives the slide bar 5 and the flushing ring 4 to rotate, thereby closing the flushing ring 4. At the same time, the control module sends a signal to make the double-headed push rod drive the slide 802 to slide on the surface of the guide rod 801, so that the slide 802 drives the segmented covers 7 to approach each other. In this process, the segmented covers 7 are driven by the torsion spring 803 to merge. After the segmented covers 7 are merged, the segmented covers 7 are located between the umbrella skirts of the insulator 2, and the rubber ring 702 contacts the lower surface of the umbrella skirt of the insulator 2, isolating the insulator 2 in sections, and the water tank 40 is pumped into the water tank 40 by the water pump 403. 2 is extracted and transported into the hollow tube through a hose. It is sprayed at different angles under the action of multiple high-pressure nozzles 401 to wash the insulator 2 at multiple angles and clean the dirt on the surface of the insulator 2. At the same time, the threaded rod 301 drives the flushing ring 4 to flush the upper part of the insulator 2 up and down. At the same time, when the lifting frame 3 rotates to the vertical, the second pull rope 1003 is pulled to pull one end of the swing arm 1001, so that the swing arm 1001 drives the support rod 1002 to rotate upward, and the support rod 1002 drives the second frame of the connecting frame 901 to rotate, so that the visual camera is away from the insulator 2 to avoid it from being flushed when the insulator 2 is flushed. When the washing ring 4 finishes washing the upper half of the insulator 2, the segmented cover 7 is opened, and the washing ring 4 moves to the lower half of the insulator 2 for washing. At this time, the upper half of the insulator 2 remains dry. When the lower half is washed, the resistance of the upper half is too large, which can effectively reduce the occurrence of flashover. When the temperature detection module detects that the ambient temperature is below zero, the air pump 1102 and the heating box 1103 work, and under the action of the hose, air is transported to the drying pipe 1101, and the drying pipe 1101 dries the insulator 2.After the insulator 2 is cleaned, the flushing ring 4 is moved to the top. The cooperation between the guide groove and the slide bar 5 drives the flushing ring 4 to rotate, thereby automatically separating the flushing ring 4 to prevent interference between the flushing ring 4 and the insulator 2 when the lifting frame 3 is retracted. The lifting frame 3 is folded and retracted by the electric push rod, and the second pull rope 1003 is relaxed. The swing arm 1001 is placed on the surface of the tower 1 due to the weight of the support rod 1002, and the connecting frame 901 is in a vertical state, so that the visual camera is at the optimal detection distance. When the visual camera is used to inspect the insulator 2, the connecting frame 901 is driven by the drive motor to rotate on the surface of the fixed seat 902, so that the connecting frame 901 drives the visual camera to inspect the insulator 2 from multiple angles, avoiding blind spots. During the cleaning process of the insulator 2, the current detection module constantly detects the flashover of the insulator 2. When the threshold is exceeded, the cleaning is immediately stopped, and the segmented cover 7 and the flushing ring 4 are moved away from the insulator 2. After they are dry, cleaning is resumed.

[0047] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

[0048] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0049] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A transmission line insulator monitoring device, characterized in that: It comprises a current detection module for detecting leakage current and a visual detection module for monitoring contamination or cracks on the surface of the insulator (2), wherein the current detection module and the visual detection module are both electrically connected to the control module; The current detection module comprises a detection ring installed at an end of the insulator (2) away from the cable and a signal processing unit; A visual detection component (9) is provided on one side of the insulator (2), the visual detection component (9) includes a connection frame (901), the visual detection module is provided at the bottom of the connection frame (901), the connection frame (901) is L-shaped, and the other end of the connection frame (901) is rotated on the upper surface of the tower (1) through a fixing seat (902).

2. A transmission line insulator monitoring device according to claim 1, characterized in that: The control module is electrically connected to a temperature detection module, a positioning module and a data transmission module, and the temperature detection module is used to detect the ambient temperature.

3. The transmission line insulator monitoring device according to claim 1, characterized in that: The invention also includes a flushing device for timely cleaning dirt on the surface of the insulator (2), wherein the flushing device includes a flushing ring (4) for flushing the insulator (2) and a segmented cover (7) for segmentally flushing the insulator (2), wherein both the flushing ring (4) and the segmented cover (7) are made of insulating material.

4. The transmission line insulator monitoring device according to claim 3, characterized in that: The flushing ring (4) comprises two semicircular hollow tubes and a plurality of high-pressure nozzles (401) mounted on the surface of the hollow tubes. The plurality of high-pressure nozzles (401) are distributed on the surface of the hollow tubes in three layers, namely, upper, middle, and lower layers. The water outlet angles of the high-pressure nozzles (401) in the upper, middle, and lower layers are different, so as to spray water from multiple angles.

5. The transmission line insulator monitoring device according to claim 4, characterized in that: The flushing device further comprises a lifting frame (3) hinged on the lower surface of the tower (1); the lifting frame (3) and the flushing ring (4) are located on one side of the insulator (2); a threaded rod (301) is rotatable on the surface of the lifting frame (3); a moving block (302) is threadedly connected to the surface of the threaded rod (301); and one end of the flushing ring (4) is hinged on a side of the moving block (302) close to the insulator (2).

6. The transmission line insulator monitoring device according to claim 5, characterized in that: Two slide bars (5) are fixed to one end of the flushing ring (4) close to the lifting frame (3), and two limiting grooves (6) are provided on the surface of the lifting frame (3) to match the slide bars (5). The two limiting grooves (6) are vertically arranged, and the upper ends of the two limiting grooves (6) are provided with guide grooves for automatically opening the flushing ring (4).

7. The transmission line insulator monitoring device according to claim 3, characterized in that: The segmented cover (7) is located at a lower middle position of the insulator (2). The segmented cover (7) is composed of two half-conical covers. Connecting arms (701) are fixed to the surface of the segmented cover (7). A rubber ring (702) is fixed to the top of the segmented cover (7). A flow guide tube (703) is provided at the intersection of the segmented cover (7).

8. The transmission line insulator monitoring device according to claim 7, characterized in that: The segmented cover (7) is separated and merged by an opening and closing assembly (8), and the opening and closing assembly (8) includes a guide rod (801) fixed to a side of the lifting frame (3) away from the insulator (2) and a slide (802) symmetrically sliding on the surface of the guide rod (801), the connecting arm (701) is hinged to one end of the slide (802) away from each other through a rotating shaft, and a torsion spring (803) for driving the connecting arm (701) and the segmented cover (7) to merge is sleeved on the surface of the rotating shaft, and a first pull rope (804) for driving the segmented cover (7) to rotate is fixed on the surface of the connecting arm (701).

9. The transmission line insulator monitoring device according to claim 1, characterized in that: The connecting frame (901) includes a first frame body and a second frame body hinged to one end of the first frame body, a traction assembly (10) for rotating the second frame body is provided on the surface of the pole tower (1), the traction assembly (10) includes swing arms (1001) rotating on both sides of the pole tower (1) and a support rod (1002) rotating on the swing arm (1001) close to one end of the second frame body, a second pull rope (1003) for driving the support rod (1002) to support the second frame body is fixed to the other end of the swing arm (1001), and the other end of the second pull rope (1003) is passed around two guide wheels (1004) and fixed to the surface of the lifting frame (3).

10. The transmission line insulator monitoring device according to claim 3, characterized in that: The flushing device further comprises a drying assembly (11) for preventing the insulator (2) from freezing in winter, wherein the drying assembly (11) comprises two drying pipes (1101) fixed to the upper surface of the flushing ring (4).

Images