Lightning arrester mounting seat

Abstract

The invention discloses a lightning arrester mounting seat, and relates to the technical field of lightning arresters, the lightning arrester mounting seat comprises an upper mounting plate and a lower mounting plate which are used for fixing a lightning arrester main body, the upper mounting plate and the lower mounting plate are arranged at an interval and are fixedly connected through a plurality of bolts, and the outer side of each bolt is sleeved with an upper insulating part and a lower insulating part which are matched with each other; the lower insulating part is located between the upper mounting plate and the lower mounting plate. The device further comprises an isolation part, a cleaning assembly and a driving part. Through the arrangement of the cleaning assembly, the isolation piece, the driving piece and the like, the isolation piece can isolate the upper side and the lower side of the lower insulation piece, a falling object only adheres to the upper inclined face, and even if pollutants are in a humid environment, the upper mounting plate and the lower mounting plate cannot be powered on through the lower plane; and for pollutants which can be attached to the whole circumferential side of the isolation piece along with the environmental wind, the driving piece and the pressure piece can drive the multiple scraping plates to clean the circumferential side of the isolation piece through the environmental wind and rainfall, and therefore the probability of pollution flashover is reduced.

Description

Technical Field

[0001] This invention relates to the field of surge arrester technology, and more particularly to a surge arrester mounting base. Background Technology

[0002] A surge arrester mounting base is a basic structural component used to fix and support the surge arrester body and ensure its stable grounding. It is usually made of metal or high-strength insulating materials and serves as the connection carrier between the surge arrester and transmission towers, electrical equipment enclosures, or buildings. Its core function is to ensure that the surge arrester maintains a reliable working state under lightning strikes, mechanical vibrations, and environmental changes.

[0003] Chinese patent application number 202010352590.X discloses an insulating mounting base for a composite-jacketed metal oxide surge arrester. This invention uses a technical solution where a boss is provided at the contact point between the upper mounting plate and the upper insulating block. The diameter of the boss is less than or equal to the diameter of the upper insulating block. This prevents rainwater from forming a conductive liquid path with the bolts through the gaps in the insulating components, thereby improving insulation performance.

[0004] However, the mounting base of surge arresters is exposed to the air for a long time, and pollutants such as industrial dust, salt, and bird droppings will accumulate on its surface, especially in mountainous areas, industrial zones, or coastal areas, where dirt is more likely to accumulate and is highly hygroscopic. These pollutants have acceptable insulation properties when dry, but in humid environments (rain, fog, dew), the electrolyte in the dirt layer dissolves and forms a conductive liquid film, which greatly increases the probability of "flashover".

[0005] Furthermore, similar to the devices mentioned above, if industrial dust, salt, or other pollutants have accumulated on the surface of the porcelain bushing or rubber ring during heavy rainfall (common in coastal or industrial areas), the initial rainwater wash may remove some loose dirt, but the residual adhesive pollutants (such as oil stains and salt crystals) are more likely to form a high-concentration electrolyte film. In addition, even if there are no obvious pollutants on the surface of the insulating component, when the rainfall per unit time is too large, the traditional porcelain bushing with poor hydrophobicity is also prone to forming a continuous water film.

[0006] To address these issues, the present invention proposes a surge arrester mounting base. Summary of the Invention

[0007] The purpose of this invention is to provide a surge arrester mounting base to solve the technical problems mentioned in the background section.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a surge arrester mounting base, comprising an upper mounting plate and a lower mounting plate for fixing the surge arrester body, wherein the upper mounting plate and the lower mounting plate are spaced apart and fixedly connected by a plurality of bolts, and each bolt is fitted with a cooperating upper insulating member and a lower insulating member on its outer side, wherein the lower insulating member is located between the upper mounting plate and the lower mounting plate, and further comprising: An isolating element is disposed on the circumferential side of a lower insulating element, and includes a sleeve fixedly connected to the lower insulating element, wherein a skirt is provided on the circumferential side of the sleeve. A cleaning component is disposed on the circumferential side of the isolator, and includes a rotating component that mates with the circumferential surface of the isolator; A drive unit, located on the top of the upper mounting plate, is used to drive the rotating component to rotate and thereby clean the surface of the isolation component.

[0009] Preferably, the umbrella skirt includes an upper inclined surface and a lower plane, and a vertical surface is provided between the upper inclined surface and the lower plane, with the angle between the upper inclined surface and the vertical surface being an obtuse angle.

[0010] Preferably, the cleaning assembly further includes an annular cylinder sleeved on the circumferential side of the lower insulating member, the top of the annular cylinder having an annular groove, the rotating member including an annular plate rotatably connected inside the annular cylinder, the annular plate having a plurality of circumferentially distributed guide vanes, a plurality of scrapers fixedly connected to the side of the annular plate away from the guide vanes, and the end of the scraper extending out of the annular groove matching the circumferential side of the insulating member.

[0011] Preferably, the driving component includes a collection box, the inside of which is formed a rainwater collection groove. A connecting pipe communicating with the rainwater collection groove is fixedly connected to the side wall of the collection box. At least one air collecting hood is provided on the side of the collection box, and the air collecting hood is communicating with the connecting pipe. Multiple first connectors communicating with the connecting pipe are provided at the bottom of the collection box. A second connector is provided on the circumferential side of the annular cylinder. The first connectors and the second connectors are connected by pipes. A discharge hole is provided on the side wall of the annular cylinder.

[0012] Preferably, filters are provided on the top of the collection box and the air inlet side of the multiple air collecting hoods, and multiple one-way components are provided between the rain collection trough and the connecting pipe. The one-way components prevent the medium in the collection pipe from entering the rain collection trough in reverse. A valve plate is provided at the connection between the air collecting hood and the connecting pipe. The valve plate prevents the medium in the collection pipe from entering the air collecting hood in reverse.

[0013] Preferably, the collection box is slidably connected to the upper mounting plate, and a pressure component is provided between the first connector and the upper mounting plate. The pressure component is connected to the second connector through a pipe. When the collection box moves downward under the action of rainwater gravity, the volume of the pressure component decreases, thereby increasing the pressure of the medium entering the annular cylinder.

[0014] Preferably, the pressure component includes a movable tube fixedly connected to the first connector, a connecting cylinder being slidably and sealed at the end of the movable tube away from the first connector, a sealing plate being rotatably connected at the end of the movable tube near the connecting cylinder, a through hole matching the connecting cylinder being provided on the upper mounting plate, and the connecting cylinder being connected to the second connector via a pipe.

[0015] Preferably, an annular box matching the umbrella skirt is fixedly connected to the side wall of the plurality of scrapers, and rainwater flowing down the inclined surface of the umbrella skirt can enter the annular box. A drain hole is provided at the bottom of the annular box, and an arc-shaped component that contacts the bottom of the annular box is fixedly connected to the side wall of the annular cylinder. The arc-shaped component blocks part of the drain hole near the inner side of the lower mounting plate.

[0016] Preferably, the bottom of the collection box is fixedly connected to a plurality of first connecting posts, and the ends of the plurality of first connecting posts extending out of the upper mounting plate are fixedly connected to the same first movable plate. The top of the lower mounting plate is slidably connected to a second movable plate, and the bottom of the second movable plate is fixedly connected to a plurality of second connecting posts. The lower mounting plate is provided with a plurality of sliding holes that match the second connecting posts. An elastic element is provided between the second connecting posts and the sliding holes. The bottom of the first movable plate and the top of the second movable plate are respectively provided with mutually cooperating permanent magnet plates. The opposite sides of the two permanent magnet plates are set with the same pole. A detection element is provided between the second movable plate and the lower mounting plate. The detection element can detect the amount of rainfall per unit time around the lightning arrester body.

[0017] Preferably, the detection element includes a first contact piece fixed to the bottom of the second movable plate, and a second contact piece is fixedly connected to the upper surface of the lower mounting plate. The first contact piece and the second contact piece are electrically connected to the same signal processing module.

[0018] The beneficial effects of this invention are: This invention, through the design of cleaning components, isolators, and driving components, achieves isolation of the upper and lower sides of the lower insulating component. Bird droppings and other fallen objects will only adhere to the upper inclined surface and not the lower surface. Even if contaminants form conductive liquid paths in a humid environment, they cannot connect the upper and lower mounting plates through the lower surface. For contaminants that adhere to the entire circumference of the isolator with the help of ambient wind, the driving and pressure components utilize ambient wind and rainfall to drive multiple scrapers to rotate and clean the circumference of the isolator, thereby reducing the probability of flashover between the upper and lower mounting plates. Furthermore, the annular box collects rainwater at the edge of the umbrella skirt, and the arc-shaped component blocks some of the drainage holes, preventing rainwater from forming a water curtain above the lower mounting plate, thereby reducing or even eliminating the probability of conductive liquid paths forming between the upper and lower mounting plates. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a surge arrester mounting base according to the present invention.

[0020] Figure 2 This is a schematic diagram of the mating structure of the insulating component and the isolating component under the present invention.

[0021] Figure 3 This is a cross-sectional structural diagram of the insulating component and the isolating component of the present invention.

[0022] Figure 4 This is a cross-sectional view of the surge arrester mounting base of the present invention.

[0023] Figure 5 This is a schematic diagram showing the disassembly of the rotating component and the annular cylinder of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the driving component of the present invention.

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of the rainwater collection trough and wind collection cover of the present invention.

[0026] Figure 8 This is a cross-sectional schematic diagram of the driving component of the present invention.

[0027] Figure 9 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0028] Figure 10 This is a schematic diagram showing the fit between the annular box and the arc-shaped component of the present invention.

[0029] Figure 11 This is a cross-sectional schematic diagram of the annular box and the arc-shaped component of the present invention.

[0030] Figure 12 This is a schematic diagram of the installation of the detection component of the present invention.

[0031] The accompanying drawings are: 1. Main body of the surge arrester; 2. Upper mounting plate; 21. Upper insulating component; 22. Through hole; 3. Lower mounting plate; 31. Lower insulating component; 32. Second movable plate; 4. Spacer; 41. Sleeve; 42. Apron; 421. Upper inclined surface; 422. Lower plane; 5. Cleaning assembly; 51. Rotating component; 511. Annular plate; 512. Guide vane; 513. Scraper; 52. Annular cylinder; 521. Second connector; 53. Annular groove; 54. Annular box; 55. Arc-shaped component; 6. Driving component; 61. Collection box; 611. First movable plate; 62. Rainwater collection trough; 63. Connecting pipe; 64. Air collection hood; 65. First connector; 66. One-way component; 7. Pressure components; 71. Movable tube; 72. Connecting cylinder; 73. Sealing plate; 8. Permanent magnet plate; 9. Test piece; 91. First contact piece; 92. Second contact piece. Detailed Implementation

[0032] 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.

[0033] Example 1 In actual production, the mounting base of surge arresters is exposed to air for extended periods, accumulating industrial dust, salt, bird droppings, and other pollutants on its surface. This is especially true in mountainous, industrial, or coastal areas, where the contaminants are more prone to accumulation and are highly hygroscopic. While these contaminants offer acceptable insulation in a dry state, they dissolve in humid environments, forming a conductive liquid film that significantly increases the probability of flashover. This embodiment is invented to address these issues.

[0034] Please see Figures 1 to 12 As shown, an embodiment of the present invention provides a surge arrester mounting base, which includes an upper mounting plate 2 and a lower mounting plate 3 for fixing the surge arrester body 1. The upper mounting plate 2 and the lower mounting plate 3 are spaced apart and fixedly connected by a plurality of bolts. Each bolt has an upper insulating member 21 and a lower insulating member 31 that cooperate with each other on its outer side. The lower insulating member 31 is located between the upper mounting plate 2 and the lower mounting plate 3. The base also includes an isolator 4, a cleaning assembly 5, and a driving member 6.

[0035] To supplement the structure of the upper insulating member 21 and the lower insulating member 31, both the upper insulating member 21 and the lower insulating member 31 are cylindrical structures, and both have bolt holes at their axial centers for bolts to pass through. The upper insulating member 21 has a groove coaxially arranged with the bolt hole inside, and the top of the lower insulating member 31 has a protrusion that matches the groove. The protrusion of the lower insulating member 31 passes through the mounting hole of the upper mounting plate 2 and is fixed to the groove of the upper insulating member 21. Furthermore, the upper insulating member 21 and the lower insulating member 31 are made of rubber or ceramic material, and no specific limitation is made in this embodiment.

[0036] The isolation member 4 is disposed on the circumferential side of the lower insulating member 31, and includes a sleeve 41 fixedly connected to the lower insulating member 31, with a skirt 42 disposed on the circumferential side of the sleeve 41.

[0037] The cleaning component 5 is disposed on the circumferential side of the isolation member 4, and includes a rotating member 51 that is configured to cooperate with the circumferential surface of the isolation member 4.

[0038] The driving component 6, which is located on the top of the upper mounting plate 2, is used to drive the rotating component 51 to rotate and thereby clean the circumferential surface of the isolation component 4.

[0039] Please see Figure 2 and Figure 3 As shown, the umbrella skirt 42 includes an upper inclined surface 421 and a lower plane 422. A vertical surface is provided between the upper inclined surface 421 and the lower plane 422. The angle between the upper inclined surface 421 and the vertical surface is an obtuse angle. In this embodiment, the cross-sectional shape of the umbrella skirt 42 is a right trapezoid, and the connection between the upper inclined surface 421, the vertical surface and the lower plane 422 is rounded.

[0040] The reason for setting the upper inclined surface 421 and the lower flat surface 422 is that some pollutants (such as bird droppings) cannot adhere to the lower flat surface 422. Even if the pollutants form a conductive liquid path in a humid environment, they cannot connect the upper mounting plate 2 and the lower mounting plate 3 through the lower flat surface 422. As for other pollutants (such as dust and salt), they will adhere to the circumference of the isolation member 4 with the ambient wind. For this, the cleaning component 5 is required to clean the isolation member 4.

[0041] Specifically, please refer to Figures 2 to 5 As shown, the cleaning component 5 also includes an annular cylinder 52 sleeved on the circumferential side of the lower insulating member 31. The top of the annular cylinder 52 is provided with an annular groove 53. The rotating member 51 includes an annular plate 511 rotatably connected inside the annular cylinder 52. Multiple circumferentially distributed guide vanes 512 are provided on the annular plate 511. The multiple guide vanes 512 and the annular plate 511 form an impeller structure. When rainwater or air enters the annular cylinder 52, the annular plate 511 rotates under the action of the medium and the multiple guide vanes 512. Multiple scrapers 513 are fixedly connected to the side of the annular plate 511 away from the guide vanes 512. One end of the scraper 513 extending out of the annular groove 53 matches the circumferential side of the isolation member 4. When the annular plate 511 drives the multiple scrapers 513 to rotate, the scrapers 513 can clean the contaminants on the circumferential side of the isolation member 4. The main types of contaminants are dust, salt and objects with low adhesion.

[0042] Please see Figures 6 to 9 As shown, the driving component 6 includes a collection box 61, with a rainwater collection trough 62 formed inside the collection box 61. A connecting pipe 63 communicating with the rainwater collection trough 62 is fixedly connected to the side wall of the collection box 61. At least one air collecting hood 64 is provided on the side of the collection box 61. The air collecting hood 64 is trumpet-shaped, and the middle part of the air collecting hood 64 is connected to the connecting pipe 63. Multiple first connectors 65 communicating with the connecting pipe 63 are provided at the bottom of the collection box 61. The position and number of the first connectors 65 match the bolts. A second connector 521 is provided on the circumferential side of the annular cylinder 52. The first connectors 65 and the second connectors 521 are connected by pipes. A discharge hole is opened on the side wall of the annular cylinder 52 to discharge the medium inside the annular cylinder 52.

[0043] The top of the collection box 61 and the air inlet side of the multiple air collection hoods 64 are respectively provided with filters, and multiple one-way components 66 are provided between the rain collection trough 62 and the connecting pipe 63. The one-way components 66 prevent the medium in the collection pipe from entering the rain collection trough 62 in reverse. A valve plate is provided at the connection between the air collection hood 64 and the connecting pipe 63. The valve plate prevents the medium in the collection pipe from entering the air collection hood 64 in reverse.

[0044] In this embodiment, the one-way component 66 includes a one-way cylinder communicating with the connecting pipe 63. A one-way ball is connected inside the one-way cylinder by a conical spring, and a sealing plate 73 matching the one-way ball is fixedly connected to the inner wall of the one-way cylinder. When the mass of rainwater in the rain collection trough 62 is greater than the elastic force of the conical spring, the one-way ball moves to one side and makes the one-way component 66 conductive. The rainwater in the rain collection trough 62 enters the connecting pipe 63 and finally enters the annular cylinder 52 through the first connector 65, the second connector 521 and related pipes. If the rainfall per unit time is large, the one-way component 66 is in a long-term conductive state.

[0045] The bottom of the collection box 61 is fixedly connected to a plurality of first connecting posts. The ends of the plurality of first connecting posts extending out of the upper mounting plate 2 are fixedly connected to the same first movable plate 611. The top of the lower mounting plate 3 is slidably connected to a second movable plate 32. The bottom of the second movable plate 32 is fixedly connected to a plurality of second connecting posts. The lower mounting plate 3 has a plurality of sliding holes that match the second connecting posts. An elastic element is provided between the second connecting posts and the sliding holes. In this embodiment, the elastic element is a spring. The bottom of the first movable plate 611 and the top of the second movable plate 32 are respectively provided with mutually cooperating permanent magnet plates 8. The opposite sides of the two permanent magnet plates 8 are set with the same pole, that is, the two permanent magnet plates 8 repel each other.

[0046] In use, after the lower movable plate, the upper movable plate, and the collection box 61 are installed on the lower mounting plate 3 and the upper mounting plate 2 respectively, since the permanent magnet plate 8 on the lower movable plate and the permanent magnet plate 8 on the upper movable plate are like poles and repel each other, the lower movable plate and the upper movable plate are connected without contact by magnetic force. When the rainwater in the collection box 61 continues to accumulate, the rainwater breaks through the one-way member 66 and enters the connecting pipe 63 and enters the annular cylinder 52 through the first connector 65, the second connector 521 and related pipes. At this time, the annular plate 511 rotates under the action of the rainwater and multiple guide vanes 512, thereby causing multiple scrapers 513 to clean the circumference of the isolation member 4.

[0047] When the weather is windy but not rainy, especially in windy areas such as mountainous or coastal areas, the ambient wind passes through the filter and enters the wind collector hood 64. Under the special structure of the wind collector hood 64, the ambient wind is gathered and guided into the connecting pipe 63. Then, it passes through the first connector 65, the second connector 521 and related pipes and enters the annular cylinder 52. The annular plate 511 rotates under the drive of the wind, thereby causing the scraper 513 to clean the isolation member 4.

[0048] It should also be noted that when the medium enters the annular cylinder 52, it will be discharged through the discharge hole provided on one side of the annular cylinder 52. The discharge hole is located on the side away from the lower mounting plate 3 to prevent the discharged liquid from falling directly onto the lower mounting plate 3.

[0049] In summary, through the configuration of cleaning component 5, isolator 4, and drive component 6, isolator 4 can isolate the upper and lower sides of the lower insulating component 31. Bird droppings and other fallen objects will only adhere to the upper inclined surface 421 and will not adhere to the lower surface 422. Even if pollutants form conductive liquid paths in a humid environment, they cannot connect the upper mounting plate 2 and the lower mounting plate 3 through the lower surface 422. As for other pollutants (such as dust and salt), they will adhere to the entire circumference of the isolator 4 with the ambient wind. At this time, the drive component 6 will use the ambient wind and rain to drive multiple scrapers 513 to rotate and clean the circumference of the isolator 4, thereby reducing the probability of flashover between the upper mounting plate 2 and the lower mounting plate 3.

[0050] Example 2 In practical use, it was found that due to the strong adhesion of highly viscous substances such as bird droppings to the upper inclined surface 421, relying solely on rainfall and ambient wind to drive the scraper 513 to rotate was quite strenuous. Therefore, further improvements were made based on the above embodiment.

[0051] Please see Figure 8 and Figure 9 As shown, the collection box 61 is slidably connected to the upper mounting plate 2. A pressure component 7 is provided between the first connector 65 and the upper mounting plate 2. The pressure component 7 is connected to the second connector 521 through a pipe. When the collection box 61 moves downward under the action of rainwater gravity, the volume of the pressure component 7 decreases, thereby increasing the pressure of the medium entering the annular cylinder 52.

[0052] The pressure component 7 includes a movable tube 71 fixedly connected to the first connector 65. The end of the movable tube 71 away from the first connector 65 is slidably connected to a connecting cylinder 72. The end of the movable tube 71 near the connecting cylinder 72 is rotatably connected to a sealing plate 73, and the rotation angle of the sealing plate 73 is less than 60 degrees. A spring can be provided between the movable tube 71 and the connecting cylinder 72. The upper mounting plate 2 has a through hole 22 that matches the connecting cylinder 72. The connecting cylinder 72 and the second connector 521 are connected by a pipe.

[0053] Based on the above embodiments, during use, rainwater in the rain collection trough 62 enters the collection pipe through the one-way component 66, and then enters the connecting cylinder 72 through the movable pipe 71 fixedly connected to the first connector 65. A flexible hose is provided between the second connector 521 and the through hole 22, and the rainwater passes through the through hole 22, the flexible hose and the second connector 521 into the annular cylinder 52.

[0054] When the rainwater in the rain collection trough 62 accumulates to a certain level, the collection box 61 moves downward under the gravity of the rainwater. Since the movable pipe 71 is fixedly connected to the first connector 65, when the connector box moves downward, the movable pipe 71 also moves downward, reducing the volume inside the connector cylinder 72. Furthermore, the sealing plate 73 at the bottom of the movable pipe 71 seals the movable pipe 71 during its downward movement. At this time, the pressure inside the connector cylinder 72 increases, thereby increasing the liquid pressure inside the connector cylinder 72 entering the annular cylinder 52. This enhances the cleaning power of the scraper 513 on pollutants. This method is particularly effective during periods of heavy rainfall. Pollutants are not only impacted by the rainwater, but also cleaned and removed by the scraper 513, achieving the cleaning of highly viscous objects.

[0055] In summary, through the coordinated arrangement of the pressure component 7, the cleaning component 5, and the driving component 6, when the collection box 61 moves downward under the gravity of rainwater, the movable pipe 71 moves accordingly, increasing the liquid pressure in the connecting cylinder 72. This, in turn, increases the pressure of rainwater entering the annular cylinder 52, making the driving force of the scraper 513 greater. Combined with the impact of external rainwater on pollutants, this greatly enhances the cleaning power of the scraper 513 on the isolation component 4.

[0056] Example 3 Considering that when rainfall is heavy, rainwater may form a continuous water curtain on the umbrella skirt 42 of the insulating member 4, and if the water curtain falls directly onto the lower mounting plate 3, it is highly likely that a conductive liquid path will be formed between the upper mounting plate 2 and the lower mounting plate 3. Therefore, further improvements have been made based on the above embodiment.

[0057] Please see Figure 10 and Figure 11 As shown, annular boxes 54 matching umbrella skirts 42 are fixedly connected to the side walls of multiple scrapers 513. A filter screen is provided on the top of the annular box 54, and rainwater flowing down the inclined surface 421 of the umbrella skirt 42 can enter the annular box 54. A drain hole is provided at the bottom of the annular box 54. An arc-shaped part 55 that contacts the bottom of the annular box 54 is fixedly connected to the side wall of the annular cylinder 52. The arc-shaped part 55 blocks part of the drain hole near the inner side of the lower mounting plate 3.

[0058] The arc-shaped component 55 includes an arc-shaped plate fixedly connected to the annular cylinder 52. A baffle that contacts the annular box 54 is fixed on the side of the arc-shaped plate near the annular box 54. The central angle of the arc-shaped plate is related to the coverage area of ​​the lower mounting plate 3, that is, the arc-shaped plate can prevent the water curtain from falling onto the lower mounting plate 3.

[0059] During use, when a large amount of rainwater falls onto the umbrella skirt 42, some of the rainwater flows into the annular box 54 through the upper inclined surface 421. Due to the cooperation between the arc-shaped part 55 and the annular box 54, the arc-shaped part 55 blocks some of the drain holes at the bottom of the annular box 54, preventing the rainwater from forming a water curtain above the lower mounting plate 3. The rainwater will only flow out when the annular box 54 rotates to the outside of the lower mounting plate 3. Furthermore, the centrifugal force generated when the annular box 54 rotates can also keep the rainwater away from the lower mounting plate 3 as much as possible.

[0060] In summary, by using the annular box 54, the arc-shaped component 55, and the drain hole in combination, the annular box 54 collects rainwater at the edge of the umbrella skirt 42, and the arc-shaped component 55 blocks part of the drain hole, preventing rainwater from forming a water curtain above the lower mounting plate 3, thereby reducing or even avoiding the probability of forming a conductive liquid path between the upper mounting plate 2 and the lower mounting plate 3.

[0061] Example 4 After rainfall, inspection personnel need to inspect the power supply lines. Since they cannot know the operating status of each surge arrester, the conventional inspection method involves checking each arrester one by one along the power supply line. This method is not only inefficient but may also cause inspection workers to miss the optimal maintenance time. Therefore, further improvements are made based on the above embodiment.

[0062] Please see Figure 12 As shown, a detection element 9 is provided between the second movable plate 32 and the lower mounting plate 3. The detection element 9 can detect the amount of rainfall per unit time around the main body 1 of the surge arrester.

[0063] The detection component 9 includes a first contact piece 91 fixed to the bottom of the second movable plate 32, and a second contact piece 92 fixedly connected to the upper surface of the lower mounting plate 3. A sealing ring is provided on the periphery of the second contact piece 92 to prevent rainwater from directly contacting the second contact piece 92. The first contact piece 91 and the second contact piece 92 are electrically connected to the same signal processing module.

[0064] During use, if heavy rainfall occurs in the area, the collection box 61 will move downwards under the gravity of the rainwater, causing the first contact 91 to contact the second contact 92 and send an electrical signal to the signal processing module. If some surge arresters in the area do not send an electrical signal to the signal processing module, it means that there may be unremovable contaminants on the isolator 4, preventing the collection box 61 from descending to the effective height. In this case, the inspection personnel can focus on inspecting the surge arrester.

[0065] In summary, by using the detection component 9, collection box 61, upper movable plate, and lower movable plate in combination, if some surge arresters in areas with heavy rainfall do not send electrical signals to the signal processing module, it indicates that there may be unremovable contaminants on the isolator 4, preventing the collection box 61 from descending to its effective height. In this case, inspection personnel can focus on inspecting the surge arrester, improving the inspection efficiency and enabling the fastest possible repair of the surge arrester, thus avoiding damage to the surge arrester in the subsequent wet environment after rain.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A surge arrester mounting base, comprising an upper mounting plate and a lower mounting plate for fixing a surge arrester body, wherein the upper mounting plate and the lower mounting plate are spaced apart and fixedly connected by a plurality of bolts, and each bolt has an upper insulating member and a lower insulating member fitted on its outer side, the lower insulating member being located between the upper mounting plate and the lower mounting plate, characterized in that, Also includes: An isolating element is disposed on the circumferential side of a lower insulating element, and includes a sleeve fixedly connected to the lower insulating element, wherein a skirt is provided on the circumferential side of the sleeve. A cleaning component is disposed on the circumferential side of the isolator, and includes a rotating component that mates with the circumferential surface of the isolator; A drive unit, located on the top of the upper mounting plate, is used to drive the rotating component to rotate and thereby clean the surface of the isolation component.

2. The surge arrester mounting base according to claim 1, characterized in that, The umbrella skirt includes an upper inclined surface and a lower flat surface, with a vertical surface between the upper inclined surface and the lower flat surface, and the angle between the upper inclined surface and the vertical surface is an obtuse angle.

3. A surge arrester mounting base according to claim 2, characterized in that, The cleaning assembly also includes an annular cylinder sleeved on the circumferential side of the lower insulating member. The top of the annular cylinder has an annular groove. The rotating member includes an annular plate rotatably connected inside the annular cylinder. The annular plate is provided with a plurality of circumferentially distributed guide vanes. A plurality of scrapers are fixedly connected to the side of the annular plate away from the guide vanes. The end of the scraper extending out of the annular groove matches the circumferential side of the insulating member.

4. A surge arrester mounting base according to claim 3, characterized in that, The driving component includes a collection box with a rainwater collection groove inside. A connecting pipe communicating with the rainwater collection groove is fixedly connected to the side wall of the collection box. At least one air collecting hood is provided on the side of the collection box, and the air collecting hood is communicating with the connecting pipe. Multiple first connectors communicating with the connecting pipe are provided at the bottom of the collection box. A second connector is provided on the circumferential side of the annular cylinder. The first connectors and the second connectors are connected by pipes. A discharge hole is opened on the side wall of the annular cylinder.

5. A surge arrester mounting base according to claim 4, characterized in that, The top of the collection box and the air inlet side of the multiple air collecting hoods are respectively provided with filters, and multiple one-way components are provided between the rain collection trough and the connecting pipe. The one-way components prevent the medium in the collection pipe from entering the rain collection trough in reverse. A valve plate is provided at the connection between the air collecting hood and the connecting pipe. The valve plate prevents the medium in the collection pipe from entering the air collecting hood in reverse.

6. A surge arrester mounting base according to claim 5, characterized in that, The collection box is slidably connected to the upper mounting plate. A pressure component is provided between the first connector and the upper mounting plate. The pressure component is connected to the second connector through a pipe. When the collection box moves downward under the action of rainwater gravity, the volume of the pressure component decreases, thereby increasing the pressure of the medium entering the annular cylinder.

7. A surge arrester mounting base according to claim 6, characterized in that, The pressure component includes a movable tube fixedly connected to a first connector. A connecting cylinder is slidably and sealed at the end of the movable tube away from the first connector. A sealing plate is rotatably connected at the end of the movable tube near the connecting cylinder. A through hole matching the connecting cylinder is provided on the upper mounting plate. The connecting cylinder and the second connector are connected by a pipe.

8. A surge arrester mounting base according to claim 7, characterized in that, An annular box matching the umbrella skirt is fixedly connected to the side wall of the multiple scrapers. Rainwater flowing down the slope of the umbrella skirt can enter the annular box. A drain hole is opened at the bottom of the annular box. An arc-shaped component that contacts the bottom of the annular box is fixedly connected to the side wall of the annular cylinder. The arc-shaped component blocks part of the drain hole near the inner side of the lower mounting plate.

9. A surge arrester mounting base according to claim 8, characterized in that, The bottom of the collection box is fixedly connected to multiple first connecting posts. One end of each of the multiple first connecting posts extending out of the upper mounting plate is fixed to the same first movable plate. The top of the lower mounting plate is slidably connected to a second movable plate. The bottom of the second movable plate is fixedly connected to multiple second connecting posts. The lower mounting plate has multiple sliding holes that match the second connecting posts. An elastic element is provided between the second connecting posts and the sliding holes. The bottom of the first movable plate and the top of the second movable plate are respectively provided with mutually cooperating permanent magnet plates. The opposite sides of the two permanent magnet plates are set with the same pole. A detection element is provided between the second movable plate and the lower mounting plate. The detection element can detect the amount of rainfall per unit time around the lightning arrester body.

10. A surge arrester mounting base according to claim 9, characterized in that, The detection component includes a first contact piece fixed to the bottom of the second movable plate, and a second contact piece fixedly connected to the upper surface of the lower mounting plate. The first and second contact pieces are electrically connected to the same signal processing module.

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