Alternating current lightning arrester and working method thereof

Abstract

The invention belongs to the technical field of lightning arresters, and particularly relates to an alternating current lightning arrester and a working method thereof. Comprising a telegraph pole and a lightning arrester. A bracket is mounted on the telegraph pole; a distance adjusting sliding rail is connected to the support, a distance adjusting sliding block is connected to the distance adjusting sliding rail in a sliding mode, and a pressed clamping unit is arranged on the distance adjusting sliding block. The pressed clamping unit comprises a loading and unloading square box which is fixedly installed on the top of the distance adjusting sliding block. A loading and unloading square block is mounted on the lightning arrester, and the loading and unloading square block and the loading and unloading square box are in fit connection and are in sliding fit; the distance adjusting slide block is provided with a motion control distance adjusting device; therefore, the spacing of the lightning arresters in the group can be conveniently adjusted, the damage of the lightning arresters caused by cross discharge under the overvoltage condition due to insufficient spacing is avoided, the service life of the lightning arresters is prolonged, the limitation of the lightning arresters in use is reduced, the aging speed of insulating jackets on the lightning arresters is further reduced, and the service life of the lightning arresters is prolonged. And the protection effect of the lightning arrester in use is improved.

Description

Technical Field

[0001] This invention belongs to the field of surge arrester technology, specifically an AC surge arrester and its working method. Background Technology

[0002] AC surge arresters are key devices for protecting power systems, electrical equipment, and communication lines from damage caused by lightning overvoltage and operational overvoltage. Their core function is to limit overvoltage to a safe range that the equipment can withstand and to prevent equipment insulation from being broken down or damaged by discharging excess current to the ground.

[0003] However, when existing AC surge arresters are used in groups, adjusting the spacing between the arresters within the group is inconvenient. If the spacing is insufficient, "cross-discharge" between arresters is very likely to occur under overvoltage conditions. This not only leads to uneven current distribution but also directly damages the arrester body, severely limiting the use of AC surge arresters. At the same time, surge arresters continuously generate heat during long-term operation, and unreasonable spacing will hinder heat flow, causing heat to accumulate and not be released in time, resulting in excessively high local temperatures in the arrester and accelerating the aging of the insulation jacket. The above problems not only shorten the service life of the surge arrester but also reduce its protective effect. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides an AC surge arrester and its working method, which effectively solves the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an AC surge arrester, comprising a utility pole and a surge arrester; a bracket is mounted on the utility pole; an adjustable pitch slide rail is connected to the bracket, an adjustable pitch slider is slidably connected to the adjustable pitch slide rail, and a pressure-bearing snap-fit ​​unit is provided on the adjustable pitch slider, the unit being used to install and remove the surge arrester from the adjustable pitch slider; the pressure-bearing snap-fit ​​unit includes a loading and unloading box, which is fixedly installed on the top of the adjustable pitch slider; a loading and unloading block is mounted on the surge arrester, the loading and unloading block and the loading and unloading box are fitted together and slidably engaged; The adjustable slider is equipped with a controllable adjustable device for adjusting the operating position of the surge arrester. The controllable adjustable device includes a fixed rack, which is fixedly connected to both sides of the adjustable slide rail. A U-shaped base plate is mounted on the adjustable slider, and the adjustable slide rail is located inside the opening of the U-shaped base plate. A rotary cleaning assembly is provided on the U-shaped base plate for cleaning dust adhering to the insulating jacket of the surge arrester. The rotary cleaning assembly includes a rotary gear located on both sides of the adjustable slide rail and meshing with the fixed rack. The rotary gear is mounted on the U-shaped base plate.

[0006] Preferably, it includes a pressure plate that is slidably connected to the loading and unloading box; A pressure spring is located inside the loading and unloading box; one end of the pressure spring is fixedly connected to the bottom surface of the loading and unloading box, and the other end is fixedly connected to the side of the pressure plate away from the surge arrester; the side of the pressure plate near the surge arrester is located at the moving path of the loading and unloading block. The loading and unloading box is connected to a first base on both sides, and a pressure cylinder is installed on the first base. A pressure plate; two pressure cylinders are connected through the pressure plate; the pressure plate and the pressure cylinders are in sliding fit. A reset spring is sleeved on a pressure cylinder; one end of the reset spring is fixedly connected to a pressure plate, and the other end is connected to a reset limiting plate, which is fixedly connected to the end of the pressure cylinder away from the first base.

[0007] Preferably, it includes a pressure insert block connected to the side of the pressure plate near the loading / unloading box; A pressure slot is located on the side of the loading / unloading block near the pressure plate; the initial state of the return spring is a buffer setting, and when the return spring is reset, it drives the pressure plug to pass through the side of the loading / unloading box and connect with the pressure slot; the top of the pressure plug is provided with a through locking hole.

[0008] Preferably, it includes two sets of telescopic rods, which are respectively installed on both sides of the adjustable slider; each of the opposite ends of the two sets of telescopic rods is equipped with a displacement block; A bending crossbar is installed at the bottom of the displacement crossbar. A stop cylinder is installed through the bending crossbar near the adjusting slide rail, and it slides in conjunction with the bending crossbar. A stop limiting plate is connected to one end of the stop cylinder away from the adjusting slide rail, and a stop tooth block is connected to the other end. A retaining rack is located on the moving path of the stop tooth block, and the two are meshed. A stop spring is sleeved on the stop cylinder, one end of which is fixedly connected to the bending crossbar, and the other end is fixedly connected to the stop limiting plate. A bending wave is installed on the top of the displacement crossbar. The surge arrester has a retaining half-ring installed on its bent corrugated column. The corrugations on the bent corrugated column are arranged laterally, and lateral expansion and contraction can be achieved through the lateral deformation of the corrugations. The opening of the retaining half-ring faces the surge arrester. A retaining clamp is installed on the inner wall of the retaining half-ring. When the surge arrester is fixed in its current position by the controlled distance adjustment device, the surge arrester is in contact with the retaining clamp. At this time, the two retaining half-rings merge into a whole ring shape, and the center of the whole ring is coaxial with the center of the surge arrester. After the two retaining half-rings merge, they are locked to each other by a self-locking connector.

[0009] Preferably, it includes a T-shaped pipe located on the side of the loading / unloading box near the pressure plate; the output end of the T-shaped pipe faces upward and is slidably connected to a locking slide column; second bases are installed at both ends of the T-shaped pipe and are mounted on the loading / unloading box; a locking base plate is installed on the second base and connected to the output end of the T-shaped pipe; a locking spring is sleeved on the locking slide column, one end of which is fixedly connected to the locking base plate, and the other end is connected to a locking plate, which is fixedly connected to the locking slide column; a locking rod is fixedly installed on the locking plate, and when the locking spring is not deformed, the locking rod is connected to the locking hole; bent pipes are installed on both sides of the loading / unloading box; one end of each of the two bent pipes avoids the movement path of the pressure plate, and the other end is connected to both ends of the T-shaped pipe respectively.

[0010] Preferably, the adjustable slider is provided with a blocking component; the blocking component includes a drive motor, which is installed on both sides of the adjustable slider; a drive gear is installed on the output end of the drive motor; the drive gear is meshed with two drive racks, which are located on both sides of the drive gear; a drive cylinder is installed on the drive rack; a third base is installed on the adjustable slider; the drive cylinder is connected through the third base, and the two are slidably engaged; a limiting block is installed on each of the two drive racks; the two limiting blocks are located on both sides of the displacement block; the displacement block is located at the movement path of the limiting block.

[0011] Preferably, it includes a first gear, which is mounted on the bottom of the U-shaped base plate; the first gear is meshed with a rotary gear; A rotating shaft is mounted on a U-shaped substrate; one end of the rotating shaft is connected to a first gear, and the other end is connected to a rotating disk located at the top of the U-shaped substrate. A rotating rod is installed on the edge of the rotating disk away from the U-shaped base plate; a rectangular horizontal block is also provided on this side; a rectangular groove is provided through the rectangular horizontal block on the side near the rotating disk; the rotating rod is located in the rectangular groove, and the two are slidably engaged; a guide cylinder is installed on the side of the rectangular horizontal block; a guide base is installed on the U-shaped base; the guide cylinder is connected through the guide base, and the two are slidably engaged; a guide rack is installed at the end of the guide cylinder away from the rectangular horizontal block.

[0012] Preferably, it includes a rotating groove disposed at the top of the retaining semi-ring; A rotating block; the rotating block is located within a rotating groove, and the two rotate in conjunction; A compression spring is located within a rotating groove; one end of the compression spring is fixedly connected to the inner wall of the rotating groove, and the other end is fixedly connected to a rotating block; a half-toothed ring is installed on the rotating block; both half-toothed rings are coaxial with the center of the surge arrester, and the two half-toothed rings are staggered in position; a guide groove is provided at the top of the rotating block, and an electrically controlled sliding column is slidably connected in the guide groove; the insulating jacket of the surge arrester is umbrella-shaped, and a cleaning U-block is provided on the side of the electrically controlled sliding column near the surge arrester, the number of which matches the number of umbrellas; the umbrella-shaped insulating jacket is located on the moving path of the opening of the cleaning U-block.

[0013] Preferably, it includes a fourth base mounted on a U-shaped substrate; a drive shaft is mounted on the fourth base, a second gear is mounted on one end of the drive shaft, and a third gear is mounted on the other end; the third gear is meshed with a guide rack; the second gear is located at the moving path of the half-gear ring, and the two are meshed together.

[0014] The present invention also provides a method for operating an AC surge arrester, comprising the following steps: S1. The surge arrester is conveniently installed and removed onto the adjustable slider via the pressure-bearing snap-fit ​​unit; S2. The adjustable slider can move in a limited position on the adjustable slide rail, and the surge arrester is installed on the adjustable slider, which can drive the surge arrester to move to adjust its spacing and position. S3, Operation of the rotating cleaning component, is used to clean dust adhering to the insulating jacket of the surge arrester, so as to prevent the insulating jacket from overheating and affecting the protective effect of the surge arrester.

[0015] As can be seen from the above, the AC surge arrester provided by the present invention has the effect of improving the inconvenience of adjusting the spacing between surge arresters in a group, and at the same time avoiding cross discharge between surge arresters under overvoltage conditions due to insufficient distance between them. This allows the current to be evenly distributed when the surge arresters are used in a group, thereby avoiding damage to the surge arrester body, improving its service life, and reducing the limitations of the surge arrester in use. The distance between the surge arresters in a group can be reasonably set according to the needs during use, avoiding the heat generated by the surge arrester during long-term operation from being blocked by unreasonable spacing, which would cause heat accumulation and prevent timely release, resulting in excessively high local temperature of the surge arrester. This further reduces the aging rate of the insulation jacket on the surge arrester, further improves the service life of the surge arrester, and enhances its protective effect. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0017] In the attached diagram: Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded view of the pressure slot of the present invention; Figure 3 This is a schematic diagram of the rectangular horizontal block structure of the present invention; Figure 4 This is an exploded cross-sectional view of the loading and unloading box of the present invention; Figure 5 This is a schematic diagram of the adjustable slider structure of the present invention; Figure 6 This is a schematic diagram of the retaining clamp structure of the present invention; Figure 7 This is a schematic diagram of the pressure plate structure of the present invention; Figure 8 This is a schematic diagram of the limiting block structure of the present invention; Figure 9 This is a schematic diagram of the fixed semi-ring structure of the present invention; Figure 10 This is a schematic diagram of the rotating block structure of the present invention; Figure 11 This is a schematic diagram of the cleaning U-block structure of the present invention; In the diagram: 1. Utility pole; 2. Lightning arrester; 3. Bracket; 4. Adjustable slide rail; 5. Adjustable slider; 6. Loading / unloading box; 7. Loading / unloading block; 8. Retaining rack; 9. U-shaped base plate; 10. Rotating gear; 11. Pressure plate; 12. Pressure spring; 13. First base; 14. Pressure cylinder; 15. Pressure horizontal plate; 16. Return spring; 17. Pressure insert; 18. Pressure slot; 19. Locking hole; 20. Telescopic rod; 21. Displacement horizontal block; 22. Bending horizontal plate; 23. Stop cylinder; 24. Stopping gear block; 25. Stopping spring; 26. Retaining half ring; 27. Retaining clamp; 28. T-shaped pipe; 29. ​​Locking slide column; 30. Second base; 31. Locking base plate; 3 2. Locking spring; 33. Locking cross plate; 34. Locking rod; 35. Bending pipe; 36. Drive motor; 37. Drive gear; 38. Drive rack; 39. Drive cylinder; 40. Third base; 41. Limiting block; 42. First gear; 43. Rotating shaft; 44. Rotating disk; 45. Rotating rod; 46. Rectangular cross block; 47. Rectangular slide; 48. Guide cylinder; 49. Guide base; 50. Guide rack; 51. Rotating groove; 52. Rotating block; 53. Compression spring; 54. Half-section toothed ring; 55. Guide groove; 56. Electrically controlled slide column; 57. Cleaning U-block; 58. Fourth base; 59. Drive shaft; 60. Second gear; 61. Third gear. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] Implementation examples, by Figures 1 to 11 The present invention includes a utility pole 1 and a surge arrester 2; a bracket 3 is installed on the utility pole 1; an adjustable slide rail 4 is connected to the bracket 3, an adjustable slider 5 is slidably connected to the adjustable slide rail 4, and a pressure-bearing snap-fit ​​unit is provided on the adjustable slider 5, which is used to install and remove the surge arrester 2 at the adjustable slider 5. The adjustable slider 5 is equipped with a controllable adjustable device, which is used to adjust the operating position of the surge arrester 2; the controllable adjustable device includes a fixed rack 8, which is fixedly connected to both sides of the adjustable slider 4. A U-shaped base plate 9 is installed on the adjustable slider 5, and the adjustable slide rail 4 is located inside the opening of the U-shaped base plate 9; a rotary cleaning component is provided on the U-shaped base plate 9, which is used to clean the dust adhering to the insulating jacket of the surge arrester 2. Two sets of telescopic rods 20 are installed on both sides of the adjustable slider 5; displacement blocks 21 are installed on the opposite ends of the two sets of telescopic rods 20. A bending cross plate 22 is installed at the bottom of the displacement cross block 21. A stop cylinder 23 is installed through the bending cross plate 22 near the adjusting slide rail 4, and it slides in cooperation with the bending cross plate 22. A stop limiting plate is connected to one end of the stop cylinder 23 away from the adjusting slide rail 4, and a stop tooth block 24 is connected to the other end. The retaining rack 8 is located on the moving path of the stop tooth block 24, and the two are meshed. A stop spring 25 is sleeved on the stop cylinder 23, one end of which is fixedly connected to the bending cross plate 22, and the other end is fixedly connected to the stop limiting plate. A bending cross block 21 is installed at the top. A bent corrugated column is equipped with a retaining half-ring 26. The corrugations on the bent corrugated column are arranged laterally, and lateral expansion and contraction can be achieved through the lateral deformation of the corrugations. The opening of the retaining half-ring 26 faces the surge arrester 2. A retaining clamp 27 is installed on the inner wall of the retaining half-ring 26. When the surge arrester 2 is fixed in the current position by the controlled distance adjustment device, the surge arrester 2 is in contact with the retaining clamp 27. At this time, the two retaining half-rings 26 merge into a complete ring shape, and the center of the complete ring is coaxial with the center of the surge arrester 2. After the two retaining half-rings 26 merge, they are locked to each other by a self-locking connector. During use, surge arrester 2 can be quickly installed and removed using the pressure-bearing snap-fit ​​unit. Surge arrester 2 is mounted on the pitch-adjusting slider 5, allowing it to slide within a limited range at the pitch-adjusting slide rail 4. Its position and the spacing between several surge arresters in the same group can be adjusted according to usage. During the adjustment of the spacing and position of the surge arresters 2, the included rotary cleaning component can clean the insulating jackets (the several sets of umbrella-shaped insulating jackets) of the surge arresters 2, removing dust and debris. This prevents excessive dust or impurities from accumulating on the umbrella-shaped insulating jackets, which can lead to localized overheating and hinder heat dissipation, thus extending the service life of the surge arresters 2. Simultaneously, the spacing of the surge arresters 2 is adjusted via a control mechanism. The specific steps for adjusting the distance between the surge arrester 2 and the device are as follows: When it is necessary to adjust the distance or position of the surge arrester 2, the telescopic rod 20 is activated. This is an electrically controlled mechanism that moves the displacement block 21 at its output end away from the adjusting slide rail 4. This, in turn, moves the bending plate 22 away from the retaining rack 8. Under the action of the stop cylinder 23 and the stop spring 25, the bending plate 22 moves the stop block 24 away from the retaining rack 8. This disengages the retaining rack 8 and the stop block 24, freeing the adjusting slider 5 from its current position. This releases the limiting setting on the adjusting slider 5. By moving the adjusting slider 5, it can move within the limiting range of the adjusting slide rail 4. When the adjusting slider 5 moves, it can move the surge arrester 2. The adjustable position allows for the spacing of the surge arresters 2 used in groups to be adjusted and controlled according to usage requirements, reducing the limitations of the surge arresters 2 during use. After the operator completes the spacing or position adjustment of the surge arresters 2, the active control of the telescopic rod 20 is released, causing its output end to drive the displacement block 21 to reset and move. This causes the bent horizontal plate 22 on it to move closer to the adjusting slide rail 4. Under the action of the stop cylinder 23 and the stop spring 25, the bent horizontal plate 22 drives the stop tooth block 24 to move, making it mesh with the retaining rack 8. This limits the adjusting slider 5 to its current position, preventing it from moving left or right, thus avoiding the surge arresters 2 installed on the adjusting slider 5 from dislodging during use and further reducing the limitations of the surge arresters 2 during use. Limitations; at the same time, when the stop block 24 has contacted the fixed rack 8, the displacement block 21 continues to move and reset through the telescopic rod 20, so that the bent horizontal plate 22 on it moves at the stop cylinder 23, so that the stop spring 25 is in a buffer state, which strengthens the contact strength between the stop block 24 and the fixed rack 8 and the friction between the two, and avoids the stop block 24 from dislodging from the fixed rack 8 due to non-human factors during use, causing the surge arrester 2 on the pitch slider 5 to dislodge or be displaced during use, thereby improving the safety and performance of the pitch slider 5 during use, and avoiding cross discharge phenomenon caused by the spacing of several surge arresters 2 in the group during use, resulting in uneven current distribution, thus improving the performance of the surge arrester 2;It is worth mentioning that when the telescopic rod 20 moves the bent horizontal plate 22 on the displacement horizontal block 21 closer to the adjusting slide rail 4, it will also move the fixed half ring 26 closer to the surge arrester 2 under the action of the bent corrugated column. Since there are two sets of telescopic rods 20, the two fixed half rings 26 move relative to each other and move closer to the surge arrester 2. When the fixed clamping block 27 on the inner wall of the fixed half ring 26 moves closer to the surge arrester 2 and contacts its side wall, the two fixed clamping blocks 27 are located on both sides of the surge arrester 2 and in contact, which can further fix the surge arrester 2 and prevent it from shaking or other unstable situations during use. In addition, an energy-absorbing pad can be set on the contact surface between the fixed clamping block 27 and the surge arrester 2 to absorb the impact force received by the surge arrester 2 during use, thereby improving the stability and performance of the surge arrester 2 during use. This design allows for more efficient use of surge arresters 2 in groups, avoiding inconvenience in adjusting the spacing between arresters 2 within the group. It also prevents cross-discharge between arresters 2 under overvoltage conditions due to insufficient distance. Furthermore, it ensures even current distribution when using arresters 2 in groups, preventing damage to the arrester body and extending its service life. This also reduces limitations in its use. The spacing between arresters 2 in a group can be rationally set according to requirements, preventing heat buildup and overheating caused by improper spacing hindering heat flow during long-term operation. This further slows down the aging of the insulation jacket on the arresters 2, further extending their service life and improving their protective effect.

[0020] The pressure-bearing snap-fit ​​unit in this embodiment includes a loading and unloading box 6, which is fixedly installed on the top of the adjustable slider 5; a loading and unloading block 7 is installed on the surge arrester 2, and the loading and unloading block 7 and the loading and unloading box 6 are fitted together and slidably engaged. Pressure plate 11, which is slidably connected inside loading and unloading box 6; A pressure spring 12 is located inside the loading and unloading box 6; one end of the pressure spring 12 is fixedly connected to the bottom surface of the loading and unloading box 6, and the other end is fixedly connected to the side of the pressure plate 11 away from the surge arrester 2; the side of the pressure plate 11 near the surge arrester 2 is located at the moving path of the loading and unloading block 7. The loading and unloading box 6 is connected to the first base 13 on both sides, and the pressure cylinder 14 is installed on the first base 13. Pressure plate 15; two pressure cylinders 14 are connected through the pressure plate 15; the pressure plate 15 and the pressure cylinders 14 are in sliding fit. A return spring 16 is sleeved on a pressure cylinder 14; one end of the return spring 16 is fixedly connected to a pressure plate 15, and the other end is connected to a return limiting plate, which is fixedly connected to the end of the pressure cylinder 14 away from the first base 13. Pressure plug 17 is connected to the side of pressure plate 15 near loading and unloading box 6; Pressure slot 18 is located on the side of loading and unloading block 7 near pressure plate 15; return spring 16 is initially set to buffer, and when return spring 16 is reset, it drives pressure insert 17 through the side of loading and unloading box 6 and connects to pressure slot 18; pressure insert 17 has a through locking hole 19 at the top. T-shaped pipe 28 is located on the side of loading / unloading box 6 near pressure plate 15; the output end of T-shaped pipe 28 faces upward and is slidably connected to locking slide column 29; second bases 30 are installed at both ends of T-shaped pipe 28 and are mounted on loading / unloading box 6; locking base plate 31 is installed on the second base 30 and is connected to the output end of T-shaped pipe 28; locking spring 32 is sleeved on locking slide column 29, one end of which is fixedly connected to locking base plate 31, and the other end is connected to locking plate 33, which is fixedly connected to locking slide column 29; locking insert rod 34 is fixedly installed on locking plate 33, and when locking spring 32 is not deformed, locking insert rod 34 is connected to locking hole 19; bent pipes 35 are installed on both sides of loading / unloading box 6; one end of the two bent pipes 35 avoids the movement path of pressure plate 15, and the other end is connected to both ends of T-shaped pipe 28 respectively; When the surge arrester 2 needs to be installed on the utility pole 1 for use, it needs to be installed on the pitch adjustment slider 5 to facilitate the adjustment of the surge arrester 2 spacing during use. By aligning the loading and unloading block 7 on the surge arrester 2 with the loading and unloading box 6 and moving it, the loading and unloading block 7 moves within the loading and unloading box 6 to limit its movement, which is used to position the surge arrester 2 and prevent the installation position from being offset or tilted, thus affecting the use effect of the surge arrester 2. After the loading and unloading block 7 on the surge arrester 2 moves a certain distance within the loading and unloading box 6, it will contact the pressure plate 11, which will limit its movement within the loading and unloading box 6, so that the pressure spring 12 is in a buffer state until the pressure spring 12... Once 2 reaches its maximum extent, it indicates that the loading / unloading block 7 has moved to its maximum distance within the loading / unloading box 6, meaning that the loading / unloading block 7 has reached its installation position. As the pressure plate 11 continues to descend, the gas inside the loading / unloading box 6 continuously enters the T-shaped pipe 28 through the bent pipe 35 and converges at its output end. This pushes against the locking slide pin 29 at the output end of the T-shaped pipe 28, limiting its movement at the output end. This puts the locking spring 32 in a buffered state, causing the locking slide pin 29, under the action of the locking cross plate 33, to gradually move the locking rod 34 away from the locking hole 19 until the loading / unloading block 7 reaches its installation position. When the pressure plate 11 reaches the installation position, the gas generated by its downward movement causes the locking rod 34 to disengage from the locking hole 19, thereby releasing the limiting setting on the pressure block 17. This causes the return spring 16, which was originally in a buffer state, to reset, and drives the pressure plate 15 to reset, moving the pressure block 17 thereon. This allows the pressure block 17 to pass through the side of the loading / unloading box 6 and connect to the pressure slot 18, thus limiting the loading / unloading block 7 inside the loading / unloading box 6 to its current position. The surge arrester 2 is installed on the loading / unloading block 7, thus completing the installation operation of the surge arrester 2. It is worth mentioning that when loading / unloading... After block 7 is limited to its current position, the pressure spring 12, which is in a buffer state, cannot return to its original position. The resulting elastic force acts on the pressure plug 17, thereby strengthening its connection with the pressure slot 18 and preventing the pressure plug 17 from dislodging due to non-human factors during use, which would affect the installation status of the surge arrester 2. When it is necessary to disassemble the surge arrester 2, simply pull the pressure plate 15 outward to disengage the pressure plug 17 from the pressure slot 18, thereby releasing the limiting setting on the loading and unloading block 7. The return of the pressure spring 12 will then eject the loading and unloading block 7 from the loading and unloading box 6, thus completing the disassembly operation of the surge arrester 2.This design allows for convenient and quick installation and removal of surge arrester 2, without the need for any tools. The installation and removal process can be completed with one hand, avoiding the increased risks associated with two-handed operation at heights. This further reduces the limitations of surge arrester 2 in use, increases its installation and removal speed, and enhances its effectiveness. Furthermore, surge arrester 2 can be quickly replaced or maintained according to different usage needs and conditions, further improving its protective effect.

[0021] The rotary cleaning assembly of this embodiment includes a rotary gear 10, which is located on both sides of the adjustable slide rail 4 and meshes with the retaining rack 8; the rotary gear 10 is mounted on the U-shaped base plate 9; The first gear 42 is mounted on the bottom of the U-shaped base plate 9; the first gear 42 is meshed with the rotating gear 10. A rotating shaft 43 is mounted on a U-shaped substrate 9; one end of the rotating shaft 43 is connected to the first gear 42, and the other end is connected to a rotating disk 44, which is located at the top of the U-shaped substrate 9. A rotating rod 45 is mounted on the edge of the rotating disk 44 away from the U-shaped base plate 9; a rectangular horizontal block 46 is also provided on this side; a rectangular groove 47 is provided through the rectangular horizontal block 46 near the rotating disk 44; the rotating rod 45 is located in the rectangular groove 47 and the two are slidably engaged; a guide cylinder 48 is mounted on the side of the rectangular horizontal block 46; a guide base 49 is mounted on the U-shaped base plate 9; the guide cylinder 48 is connected through the guide base 49 and the two are slidably engaged; a guide rack 50 is mounted on the end of the guide cylinder 48 away from the rectangular horizontal block 46. Rotary groove 51 is located at the top of fixed semi-ring 26; Rotating block 52; Rotating block 52 is located in rotating groove 51, and the two rotate in coordination; A compression spring 53 is located inside a rotating groove 51; one end of the compression spring 53 is fixedly connected to the inner wall of the rotating groove 51, and the other end is fixedly connected to a rotating block 52; a half-toothed ring 54 is installed on the rotating block 52; both half-toothed rings 54 are coaxial with the center of the surge arrester 2, and the two half-toothed rings 54 are staggered in position; a guide groove 55 is provided at the top of the rotating block 52, and an electrically controlled sliding column 56 is slidably connected in the guide groove 55; the insulating jacket of the surge arrester 2 is umbrella-shaped, and a cleaning U-block 57 is provided on the side of the electrically controlled sliding column 56 near the surge arrester 2, the number of which matches the number of umbrellas; the umbrella-shaped insulating jacket is located on the moving path of the opening of the cleaning U-block 57; The fourth base 58 is mounted on the U-shaped base plate 9; the fourth base 58 is equipped with a drive shaft 59, one end of which is equipped with a second gear 60 and the other end with a third gear 61; the third gear 61 is meshed with the guide rack 50; the second gear 60 is located at the moving path of the half-cut gear ring 54 and the two are meshed. When adjusting the spacing of surge arresters 2, the control adjustment device needs to be operated to release the limit on the adjustment slider 5. Since the two retaining half-rings 26 are locked together by a self-locking connector after the initial fixing of the surge arrester 2's spacing, they cannot disengage. This ensures that the two retaining half-rings 26 form a complete ring, preventing the retaining clamp 27 from actively disengaging from the surge arrester 2. This avoids instability or dislocation of the surge arrester 2 due to non-human factors such as shaking during the spacing adjustment process, thus improving the effectiveness and stability of the surge arrester 2 during use. Simultaneously, adjusting the spacing of surge arresters 2 requires moving the adjustment slider 5, so the limit on the adjustment slider 5 needs to be released. Its limiting setting, through the telescopic rod 20, can drive the stop block 24 to disengage from the fixed rack 8 under the action of the displacement block 21, thereby releasing the limiting setting on the pitch slider 5. When the displacement block 21 moves, because it is connected to the fixed half-ring 26 through a bent corrugated column, but both fixed half-rings 26 are limited together and cannot be passively disengaged, lateral expansion and contraction can be achieved through the lateral deformation of the corrugations. This allows the surge arrester to be positioned between the two self-locking fixed half-rings 26 when the displacement block 21 drives the stop block 24 to release the limiting operation on the pitch slider 5. At this time, the pitch slider 5 can be adjusted... The U-shaped base plate 9 moves along the slide rail 4, while the U-shaped base plate 9 is mounted on the adjustable slider 5. As the U-shaped base plate 9 moves, its rotating gear 10 meshes with the fixed rack 8, causing the U-shaped base plate 9 to rotate synchronously with the rotating gear 10. This rotation engages with the first gear 42, which, under the action of the rotating shaft 43, drives the rotating disk 44 to rotate. This causes the rotating rod 45 on the disk to reciprocate within the rectangular slide groove 47, and the rectangular horizontal block 46 on the disk to reciprocate at the guide base 49 via the guide cylinder 48. This, in turn, drives the guide rack 50 to reciprocate, continuously engaging with the third gear 61. This causes the second gear 60 to reciprocate under the action of the active rotating shaft 59. After the two fixed half rings 26 merge, the half toothed ring 54 on it will also move to the second gear 60, so that the two mesh and connect, thereby driving the half toothed ring 54 to reciprocate. This causes the rotating block 52 on it to reciprocate in the rotating groove 51, so that the compression spring 53 is constantly in the buffer reset state. At the same time, when the second gear 60 and the half toothed ring 54 disengage, they no longer limit the compression spring 53. The reset of the compression spring 53 can drive the rotating block 52 to reset to the initial position.It is worth mentioning that when it is necessary to adjust the spacing of the surge arresters 2, the electrically controlled sliding column 56 can be activated, causing it to move within the guide groove 55 at the top of the rotating block 52. This allows several cleaning U-blocks 57 on the electrically controlled sliding column 56 to contact the umbrella-shaped insulating jacket of the surge arrester 2, thus positioning the umbrella skirt within the opening of the cleaning U-blocks 57. When the rotating block 52 reciprocates during the above operation, it surrounds the surge arrester 2, causing the cleaning U-blocks 57 on the rotating block 52 to reciprocate around the umbrella-shaped insulating jacket of the surge arrester 2. This allows the dust or impurities adhering to the umbrella-shaped insulating jacket to be scraped and cleaned, preventing dust and other impurities from accumulating on the insulating jacket and affecting the performance of the surge arrester. Specifically, dust itself may contain conductive particles or absorb moisture in a humid environment to form a "conductive film." During long-term operation of the surge arrester, the surface of the umbrella skirt... Dust layers increase surface leakage current. When leakage current flows through the dust layer, it generates heat. If dust accumulation is severe, the heat cannot dissipate in time, leading to a localized temperature increase in the umbrella skirt. Furthermore, prolonged high temperatures accelerate the aging of the umbrella-shaped insulating jacket. As described above, during the adjustment of the surge arrester 2 spacing, impurities or dust adhering to the insulating jacket are automatically cleaned, reducing the workload of personnel and improving the effectiveness of the surge arrester 2, ensuring its insulation performance during use. Moreover, the two semi-toothed rings 54 are staggered to avoid interference during operation. After the surge arrester 2 spacing is adjusted, the electrically controlled sliding column 56 can be operated to prevent the cleaning U-block 57 from contacting the insulating jacket, thus avoiding hindering the normal use of the surge arrester 2 and further reducing the limitations of the surge arrester 2 during use.

[0022] In this embodiment, the adjustable slider 5 is provided with a blocking component; the blocking component includes a drive motor 36, which is installed on both sides of the adjustable slider 5; a drive gear 37 is installed on the output end of the drive motor 36; the drive gear 37 is meshed with two drive racks 38, which are located on both sides of the drive gear 37; a drive cylinder 39 is installed on the drive racks 38; a third base 40 is installed on the adjustable slider 5; the drive cylinder 39 is connected through the third base 40, and the two are slidably engaged; a limit block 41 is installed on each of the two drive racks 38; the two limit blocks 41 are located on both sides of the displacement block 21; the displacement block 21 is located at the movement path of the limit block 41; When the spacing of the surge arrester 2 needs to be adjusted, the drive motor 36 can be started, causing its output end to drive the drive gear 37 to rotate, which in turn engages the two drive racks 38 to move. This causes the racks to be limited at the third base 40 via the drive cylinder 39. Since each of the two drive racks 38 has a limiting block 41 installed on it, the two limiting blocks 41 move in opposite directions, no longer contacting the displacement block 21. This releases the limiting setting on the displacement block 21, allowing the telescopic rod 20 at the spacing adjustment device to move the displacement block 21, thus preventing the stop block 24 on it from engaging with the stationary rack 8. Then, the adjustable slider 5 can be moved to the adjustable slide rail 4 to adjust the spacing of the surge arrester 2. After the spacing of the surge arrester 2 is adjusted, the drive motor 36 is reset to reset the drive gear 37 on its output end, which drives the two limit blocks 41 to move relative to each other and contact the displacement block 21, thus clamping and fixing the displacement block 21 in its current position. This prevents the stop block 24 from moving, thus avoiding displacement or dislocation of the surge arrester 2 due to non-human factors during use. This reduces the limitations of the surge arrester 2 during use and improves the safety of the surge arrester 2 during use.

[0023] The present invention also provides a method for operating an AC surge arrester, comprising the following steps: S1. The surge arrester 2 is conveniently mounted and dismounted onto the adjustable slider 5 via the pressure-bearing snap-fit ​​unit; S2. The adjustable slider 5 can move in a limited position on the adjustable slide rail 4, and the surge arrester 2 is installed on the adjustable slider 5, which can drive the surge arrester 2 to move, so as to adjust its spacing and usage position. S3, Operation of the rotating cleaning component, used to clean the dust adhering to the insulating jacket of surge arrester 2, to prevent the insulating jacket from overheating and affecting the protective effect of surge arrester 2.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An AC surge arrester, comprising a utility pole and the surge arrester; a bracket is mounted on the utility pole; characterized in that: The bracket is connected to an adjustable distance slide rail, and an adjustable distance slider is slidably connected to the adjustable distance slide rail. The adjustable distance slider is equipped with a pressure-bearing snap-fit ​​unit, which is used to install and remove the surge arrester onto the adjustable distance slider. The pressure-bearing snap-fit ​​unit includes a loading / unloading box, which is fixedly installed on the top of the adjustable distance slider. The surge arrester is equipped with a loading / unloading block, which is fitted and slidably connected to the loading / unloading box. The adjustable distance slider is equipped with a controllable adjustable distance device, which is used to adjust the operating position of the surge arrester. The controllable adjustable distance device includes a retaining rack, which is fixedly connected to both sides of the adjustable distance slide rail. A U-shaped base plate is installed on the adjustable distance slider, and the adjustable distance slide rail is located within the opening of the U-shaped base plate. A rotary cleaning assembly is provided on the U-shaped base plate, which is used to clean dust adhering to the insulating jacket of the surge arrester. The rotary cleaning assembly includes a rotary gear, which is located on both sides of the adjustable distance slide rail and meshes with the retaining rack. The rotary gear is installed on the U-shaped base plate.

2. The AC surge arrester according to claim 1, characterized in that: Includes a pressure plate, which is slidably connected inside the loading and unloading box; A pressure spring is located inside the loading and unloading box; one end of the pressure spring is fixedly connected to the bottom surface of the loading and unloading box, and the other end is fixedly connected to the side of the pressure plate away from the surge arrester; the side of the pressure plate near the surge arrester is located at the moving path of the loading and unloading block. The loading and unloading box is connected to a first base on both sides, and a pressure cylinder is installed on the first base. A pressure plate; two pressure cylinders are connected through the pressure plate; the pressure plate and the pressure cylinders are in sliding fit. A reset spring is sleeved on a pressure cylinder; one end of the reset spring is fixedly connected to a pressure plate, and the other end is connected to a reset limiting plate, which is fixedly connected to the end of the pressure cylinder away from the first base.

3. An AC surge arrester according to claim 2, characterized in that: Includes a pressure plug, which is connected to the side of the pressure plate near the loading / unloading box; A pressure slot is located on the side of the loading / unloading block near the pressure plate; the initial state of the return spring is a buffer setting, and when the return spring is reset, it drives the pressure plug to pass through the side of the loading / unloading box and connect with the pressure slot; the top of the pressure plug is provided with a through locking hole.

4. An AC surge arrester according to claim 1, characterized in that: It includes two sets of telescopic rods, which are respectively installed on both sides of the adjustable slider; each of the opposite ends of the two sets of telescopic rods is equipped with a displacement block; A bending crossbar is installed at the bottom of the displacement crossbar. A stop cylinder is installed through the bending crossbar near the adjusting slide rail, and it slides in conjunction with the bending crossbar. A stop limiting plate is connected to one end of the stop cylinder away from the adjusting slide rail, and a stop tooth block is connected to the other end. A retaining rack is located on the moving path of the stop tooth block, and the two are meshed. A stop spring is sleeved on the stop cylinder, one end of which is fixedly connected to the bending crossbar, and the other end is fixedly connected to the stop limiting plate. A bending wave is installed on the top of the displacement crossbar. The surge arrester has a retaining half-ring installed on its bent corrugated column. The corrugations on the bent corrugated column are arranged laterally, and lateral expansion and contraction can be achieved through the lateral deformation of the corrugations. The opening of the retaining half-ring faces the surge arrester. A retaining clamp is installed on the inner wall of the retaining half-ring. When the surge arrester is fixed in its current position by the controlled distance adjustment device, the surge arrester is in contact with the retaining clamp. At this time, the two retaining half-rings merge into a whole ring shape, and the center of the whole ring is coaxial with the center of the surge arrester. After the two retaining half-rings merge, they are locked to each other by a self-locking connector.

5. An AC surge arrester according to claim 3, characterized in that: The device includes a T-shaped pipe located on the side of the loading / unloading box near the pressure plate; the output end of the T-shaped pipe faces upward and is slidably connected to a locking slide column; second bases are installed at both ends of the T-shaped pipe and are mounted on the loading / unloading box; a locking base plate is installed on the second base and connected to the output end of the T-shaped pipe; a locking spring is sleeved on the locking slide column, one end of which is fixedly connected to the locking base plate, and the other end is connected to a locking plate, which is fixedly connected to the locking slide column; a locking rod is fixedly installed on the locking plate, and when the locking spring is not deformed, the locking rod is connected to the locking hole; bent pipes are installed on both sides of the loading / unloading box; one end of each of the two bent pipes avoids the movement path of the pressure plate, and the other end is connected to both ends of the T-shaped pipe respectively.

6. An AC surge arrester according to claim 1, characterized in that: The adjustable slider is provided with a blocking component; the blocking component includes a drive motor, which is installed on both sides of the adjustable slider; a drive gear is installed on the output end of the drive motor; the drive gear is meshed with two drive racks, which are located on both sides of the drive gear; a drive cylinder is installed on the drive rack; a third base is installed on the adjustable slider; the drive cylinder is connected through the third base, and the two are slidably engaged; a limit block is installed on each of the two drive racks; the two limit blocks are located on both sides of the displacement block; the displacement block is located at the movement path of the limit block.

7. An AC surge arrester according to claim 1, characterized in that: It includes a first gear, which is mounted on the bottom of the U-shaped base plate; the first gear is meshed with a rotary gear; A rotating shaft is mounted on a U-shaped substrate; one end of the rotating shaft is connected to a first gear, and the other end is connected to a rotating disk located at the top of the U-shaped substrate. A rotating rod is installed on the edge of the rotating disk away from the U-shaped base plate; a rectangular horizontal block is also provided on this side; a rectangular groove is provided through the rectangular horizontal block on the side near the rotating disk; the rotating rod is located in the rectangular groove, and the two are slidably engaged; a guide cylinder is installed on the side of the rectangular horizontal block; a guide base is installed on the U-shaped base; the guide cylinder is connected through the guide base, and the two are slidably engaged; a guide rack is installed at the end of the guide cylinder away from the rectangular horizontal block.

8. An AC surge arrester according to claim 7, characterized in that: Includes a rotating groove, which is located at the top of the fixed semi-ring; A rotating block; the rotating block is located within a rotating groove, and the two rotate in conjunction; A compression spring is located within a rotating groove; one end of the compression spring is fixedly connected to the inner wall of the rotating groove, and the other end is fixedly connected to a rotating block; a half-toothed ring is installed on the rotating block; both half-toothed rings are coaxial with the center of the surge arrester, and the two half-toothed rings are staggered in position; a guide groove is provided at the top of the rotating block, and an electrically controlled sliding column is slidably connected in the guide groove; the insulating jacket of the surge arrester is umbrella-shaped, and a cleaning U-block is provided on the side of the electrically controlled sliding column near the surge arrester, the number of which matches the number of umbrellas; the umbrella-shaped insulating jacket is located on the moving path of the opening of the cleaning U-block.

9. An AC surge arrester according to claim 8, characterized in that: It includes a fourth base mounted on a U-shaped base plate; a drive shaft is mounted on the fourth base, a second gear is mounted on one end of the drive shaft, and a third gear is mounted on the other end; the third gear is meshed with a guide rack; the second gear is located at the moving path of the half-gear ring, and the two are meshed together.

10. A method for operating an AC surge arrester, using the AC surge arrester as described in claim 1, characterized in that, Including the following steps: S1. The surge arrester is conveniently installed and removed onto the adjustable slider via the pressure-bearing snap-fit ​​unit; S2. The adjustable slider can move in a limited position on the adjustable slide rail, and the surge arrester is installed on the adjustable slider, which can drive the surge arrester to move to adjust its spacing and position. S3, Operation of the rotating cleaning component, is used to clean dust adhering to the insulating jacket of the surge arrester, so as to prevent the insulating jacket from overheating and affecting the protective effect of the surge arrester.

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