Lightning arrester convenient to maintain

Abstract

The invention discloses a lightning arrester convenient to maintain, and relates to the technical field of lightning arresters. To solve the problem; the lightning protection device specifically comprises a base assembly and a lightning protection assembly installed at the top of the base assembly, the lightning protection assembly is composed of a plurality of longitudinally-arranged porcelain barrels, limiting frames are clamped to the inner walls of the tops and the bottoms of the porcelain barrels, a plurality of resistors are fixedly clamped to the inner walls of the limiting frames, and elastic electrode tips are arranged at the tops of the resistors. The elastic electrode tip can be in contact with the bottom of the resistor and is electrically conducted; first connecting flanges are fixed to the outer walls of the top and the bottom of the porcelain cylinder, and the lightning protection assembly further comprises a second connecting flange fixed to the first connecting flange on the topmost portion, an electrode disc fixed to the inner wall of the second connecting flange and a tip electrode fixed to the top of the electrode disc. The whole lightning protection assembly is arranged to be of a modularized structure, on one hand, when local defects occur, the lightning protection assembly can be independently disassembled for maintenance, on the other hand, after a plurality of modules are installed, a circuit of the resistor is automatically conducted, and convenience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lightning arresters, and in particular to a lightning arrester which is easy to maintain. Background Art

[0002] Lightning arresters are used to protect electrical equipment from high transient overvoltage hazards during lightning strikes, and to limit the follow-on time and often the follow-on amplitude. Lightning arresters are sometimes also called overvoltage protectors or overvoltage limiters.

[0003] After searching, the Chinese patent publication number CN117198666A discloses an insulating base of a lightning arrester and a lightning arrester, including a cover plate and a pressure release plate. The cover plate is used to be sealed and detachably connected with the lower end flange structure in the lower end flange structure of the lightning arrester. The cover plate is provided with a low-pressure lead-out structure and a pressure release hole. The low-pressure lead-out structure is used to connect the low-pressure end of the core assembly of the lightning arrester to the ground wire. The pressure release plate is arranged on a side surface of the cover plate away from the outer jacket of the lightning arrester. The pressure release plate and the cover plate are sealed to seal the pressure release hole.

[0004] The above patent has the following deficiencies: the entire arrester is an integral structure, and when the arrester is partially damaged, such as local cracks or holes appearing on the outer wall of the porcelain tube, the entire structure needs to be maintained and replaced.

[0005] To this end, the present invention provides a lightning arrester that is easy to maintain. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to provide a lightning arrester that is easy to maintain.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A lightning arrester that is easy to maintain, comprising a base assembly and a lightning arrester assembly installed on the top of the base assembly.

[0009] The lightning protection assembly is composed of a plurality of porcelain cylinders arranged longitudinally, the top and bottom inner walls of the porcelain cylinder are both clamped with limit frames, the inner wall of the limit frame is fixedly clamped with a plurality of resistors, and the top of the resistor is provided with an elastic electrode head, which can contact with the bottom of the resistor and be electrically conductive;

[0010] The top and bottom outer walls of the porcelain cylinder are both fixed with a connecting flange 1, and the lightning protection assembly also includes a connecting flange 2 fixed to the top connecting flange 1, an electrode disk fixed to the inner wall of the connecting flange 2, and a pointed electrode fixed to the top of the electrode disk, and the electrode disk is in contact with the top elastic electrode head and is electrically conductive.

[0011] Preferably, an outer edge is arranged on the outer side of the porcelain cylinder.

[0012] Furthermore: the base assembly includes a base and a mounting seat, the base and the insulating guide rod are slidably connected to each other through the insulating guide rod, and pleated sleeves are bonded to the outer sides of the base and the mounting seat, and the base, the mounting seat and the pleated sleeve form a closed cavity.

[0013] On the basis of the above-mentioned solution: the bottom outer wall of the base is provided with an air storage box, a fluid conveying mechanism and an insulating gas storage box, and the inner walls on both sides of the base are clamped with folded line tubes.

[0014] A better solution among the above-mentioned solutions is: the fluid conveying mechanism includes a shell and a motor, the shell is fixed to the bottom outer wall of the base, and two elastic hoses are bonded to the inner wall of the shell, two ends of one elastic hose are respectively connected to the air storage box and one of the folded-line tubes, and two ends of the other elastic hose are respectively connected to the insulating gas storage box and the other folded-line tube.

[0015] As a further solution of the present invention: the motor is fixed to the side wall of the housing by bolts, and the output shaft of the motor is connected to the main shaft by a coupling.

[0016] At the same time, a plurality of support plates are fixed on the outer wall of the main shaft, and rollers are rotatably connected to the inner side of the support plates, and the rollers roll and squeeze to fit the outer wall of the elastic hose.

[0017] As a preferred embodiment of the present invention: a voltmeter or an ammeter is provided in the circuit of the resistor.

[0018] At the same time, a plurality of "T"-shaped bosses are fixed on the bottom outer wall of the base, the outer wall of the "T"-shaped bosses is movably sleeved with a connecting sleeve rod, and the outer wall of the connecting sleeve rod is slidably connected with the installation sleeve rod through a sliding rod.

[0019] As a more preferred solution of the present invention: shock-absorbing sleeves are provided on both sides of the connecting sleeve rod, and springs are buckled on the opposite side of the installation sleeve rod and the connecting sleeve rod.

[0020] The beneficial effects of the present invention are:

[0021] 1. The present invention sets the entire lightning protection assembly as a modular structure. On the one hand, when a local defect occurs, it can be disassembled separately for maintenance. On the other hand, after multiple modules are installed, the circuit of the resistor is automatically turned on, which increases convenience.

[0022] 2. The present invention forms a closed inner cavity by configuring the base assembly as a combination of a base, a mounting seat, and a pleated sleeve, thereby being able to utilize the compressibility of gas to achieve a shock-absorbing function, thereby effectively preventing the influence of vibration on the life of components.

[0023] 3. The present invention, by providing components such as a folded line tube, an air storage box, a fluid conveying mechanism, and an insulating gas storage box, can fill the closed inner cavity with insulating gas when a lightning strike occurs to prevent breakdown and leakage; it can fill the cavity with air when there is no lightning strike to prevent leakage caused by long-term filling of insulating gas, and both are driven by the fluid conveying mechanism to achieve integrated power.

[0024] 4. The present invention, by providing components such as mounting sleeve rods, connecting sleeve rods, and "T"-shaped bosses, can, on the one hand, enable the entire lightning arrester to be installed with flexible adjustment of the mounting hole spacing, and on the other hand, can further increase the shock absorbing effect through the shock absorbing sleeve and the spring, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the overall structure of a lightning arrester that is easy to maintain proposed by the present invention;

[0026] Figure 2 A schematic diagram of the structure of a lightning arrester assembly for an arrester that is easy to maintain proposed by the present invention;

[0027] Figure 3 A schematic diagram of the structure of the connecting flange 2, the electrode disk and the tip electrode of a lightning arrester which is easy to maintain proposed by the present invention;

[0028] Figure 4 A schematic diagram of the structure of a base assembly of a lightning arrester that is easy to maintain proposed by the present invention;

[0029] Figure 5 A schematic diagram of the structure of a folding tube, an air storage box, a fluid conveying mechanism, and an insulating gas storage box of a lightning arrester that is easy to maintain proposed by the present invention;

[0030] Figure 6 A schematic diagram of the structure of a fluid conveying mechanism of a lightning arrester that is easy to maintain proposed by the present invention;

[0031] Figure 7 A schematic diagram of a spring-to-slide rod structure of a lightning arrester that is easy to maintain proposed by the present invention.

[0032] In the figure: 1. base assembly; 2. lightning protection assembly; 3. porcelain cylinder; 4. outer edge; 5. connecting flange 1; 6. limit frame; 7. elastic electrode head; 8. resistor; 9. connecting flange 2; 10. electrode disk; 11. tip electrode; 12. base; 13. insulating guide rod; 14. mounting seat; 15. pleated sleeve; 16. folded line tube; 17. air storage box; 18. fluid conveying mechanism; 19. insulating gas storage box; 20. shell; 21. main shaft; 22. support plate; 23. roller; 24. motor; 25. elastic hose; 26. spring; 27. mounting sleeve rod; 28. slide rod; 29. ​​connecting sleeve rod; 30. shock-absorbing sleeve; 31. "T"-shaped boss. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] Embodiment 1:

[0036] A lightning arrester that is easy to maintain, such as Figure 1-Figure 7 As shown, it includes a base component 1 and a lightning protection component 2 installed on the top of the base component 1, the lightning protection component 2 is composed of a plurality of longitudinally arranged porcelain tubes 3, the top and bottom inner walls of the porcelain tubes 3 are clamped with a limit frame 6, the inner wall of the limit frame 6 is fixedly clamped with a plurality of resistors 8, and an elastic electrode head 7 is arranged on the top of the resistor 8, the elastic electrode head 7 can contact with the bottom of the resistor 8 and be electrically conductive.

[0037] The top and bottom outer walls of the porcelain tube 3 are fixed with connecting flanges 5, and the lightning protection assembly 2 also includes a connecting flange 29 fixed to the top connecting flange 5, an electrode disk 10 fixed to the inner wall of the connecting flange 29, and a pointed electrode 11 fixed to the top of the electrode disk 10. The electrode disk 10 is in contact with the top elastic electrode head 7 and is electrically conductive.

[0038] An outer edge 4 is arranged on the outer side of the porcelain cylinder 3 .

[0039] The device, by configuring the entire lightning protection assembly 2 as a modular structure, can be individually disassembled for maintenance when a local defect occurs, and after multiple modules are installed, the circuit of the resistor 8 is automatically turned on, thereby increasing convenience.

[0040] When this embodiment is in use, the number of porcelain tubes 3 used can be determined according to the required height, and then the limit frame 6 and the resistor 8 are assembled into the interior of the porcelain tube 3, and then the porcelain tubes 3 are connected and fixed in sequence through the connecting flange 1 5, and finally the connecting flange 2 9 is fixed, and the bottom resistor 8 is connected to the ground wire or directly grounded.

[0041] Embodiment 2:

[0042] A lightning arrester that is easy to maintain, such as Figure 1-Figure 7As shown, in order to solve the installation problem; this embodiment makes the following improvements on the basis of embodiment 1: the base assembly 1 includes a base 12 and a mounting seat 14, the base 12 and the insulating guide rod 13 are slidably connected to each other through the insulating guide rod 13, and the outer sides of the base 12 and the mounting seat 14 are bonded with a pleated sleeve 15, the base 12, the mounting seat 14 and the pleated sleeve 15 form a closed cavity.

[0043] An air storage box 17 , a fluid conveying mechanism 18 and an insulating gas storage box 19 are disposed on the bottom outer wall of the base 12 , and a folded line tube 16 is clamped on the inner walls on both sides of the base 12 .

[0044] The fluid conveying mechanism 18 includes a shell 20 and a motor 24. The shell 20 is fixed to the bottom outer wall of the base 12, and two elastic hoses 25 are bonded to the inner wall of the shell 20. The two ends of one elastic hose 25 are respectively connected to the air storage box 17 and one of the folded-line tubes 16, and the two ends of the other elastic hose 25 are respectively connected to the insulating gas storage box 19 and the other folded-line tube 16.

[0045] The motor 24 is fixed to the side wall of the housing 20 by bolts, and the output shaft of the motor 24 is connected to the main shaft 21 through a coupling. Multiple groups of support plates 22 are fixed to the outer wall of the main shaft 21. The inner side of the support plate 22 is rotatably connected to a roller 23, and the roller 23 rolls and squeezes to fit the outer wall of the elastic hose 25.

[0046] And a voltmeter or an ammeter is provided in the circuit of the resistor 8.

[0047] When lightning strikes, voltage and current appear in the circuit of resistor 8, so that the fluid conveying mechanism 18 can be controlled to start, and the insulating gas can be conveyed into the closed inner cavity, and the air can be extracted at the same time. When there is no lightning strike, the insulating gas is recovered and the closed inner cavity is filled with air.

[0048] The device forms a closed inner cavity by configuring the base assembly 1 as a combination of a base 12, a mounting seat 14, and a pleated sleeve 15, so that the compressibility of the gas can be used to achieve a shock-absorbing function, thereby effectively preventing the influence of vibration on the life of the components.

[0049] In addition, by providing components such as a folded line tube 16, an air storage box 17, a fluid delivery mechanism 18, and an insulating gas storage box 19, the device can fill the closed inner cavity with insulating gas when a lightning strike occurs to prevent breakdown and leakage, and can fill the cavity with air when there is no lightning strike to prevent leakage caused by long-term filling of insulating gas, and both are driven by the fluid delivery mechanism 18 to achieve integrated power.

[0050] To solve installation problems such as Figure 7As shown, a plurality of "T"-shaped bosses 31 are fixed to the bottom outer wall of the base 12, and the outer wall of the "T"-shaped boss 31 is movably sleeved with a connecting rod 29, shock-absorbing sleeves 30 are provided on both sides of the connecting rod 29, and the outer wall of the connecting rod 29 is slidably connected to the installation rod 27 through a sliding rod 28, and a spring 26 is buckled on the opposite side of the installation rod 27 and the connecting rod 29.

[0051] This device, by providing components such as the mounting sleeve rod 27, the connecting sleeve rod 29, and the "T"-shaped boss 31, can, on the one hand, allow the entire lightning arrester to be installed with flexible adjustment of the mounting hole spacing, and on the other hand, can further increase the shock absorption effect through the shock-absorbing sleeve 30 and the spring 26, thereby increasing the service life of the device.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lightning arrester that is easy to maintain, comprising a base assembly (1) and a lightning arrester assembly (2) mounted on the top of the base assembly (1), characterized in that: The lightning protection assembly (2) is composed of a plurality of porcelain cylinders (3) arranged longitudinally, the top and bottom inner walls of the porcelain cylinder (3) are both clamped with a limit frame (6), the inner wall of the limit frame (6) is fixedly clamped with a plurality of resistors (8), the top of the resistor (8) is provided with an elastic electrode head (7), and the elastic electrode head (7) can contact with the bottom of the resistor (8) and be electrically conductive; The top and bottom outer walls of the porcelain cylinder (3) are both fixed with a connecting flange 1 (5), and the lightning protection assembly (2) also includes a connecting flange 2 (9) fixed to the top connecting flange 1 (5), an electrode disk (10) fixed to the inner wall of the connecting flange 2 (9), and a pointed electrode (11) fixed to the top of the electrode disk (10), and the electrode disk (10) is in contact with the elastic electrode head (7) at the top and is electrically conductive.

2. The lightning arrester easy to maintain according to claim 1, characterized in that: An outer edge (4) is arranged on the outer side of the porcelain cylinder (3).

3. The lightning arrester easy to maintain according to claim 1, characterized in that: The base assembly (1) comprises a base (12) and a mounting seat (14); the base (12) and the insulating guide rod (13) are slidably connected to each other via the insulating guide rod (13); and a pleated sleeve (15) is bonded to the outer sides of the base (12) and the mounting seat (14); the base (12), the mounting seat (14) and the pleated sleeve (15) form a closed cavity.

4. The lightning arrester easy to maintain according to claim 3, characterized in that: An air storage box (17), a fluid conveying mechanism (18) and an insulating gas storage box (19) are arranged on the bottom outer wall of the base (12), and folded line tubes (16) are clamped on the inner walls on both sides of the base (12).

5. The lightning arrester easy to maintain according to claim 4, characterized in that: The fluid conveying mechanism (18) comprises a shell (20) and a motor (24), wherein the shell (20) is fixed to the bottom outer wall of the base (12), and two elastic hoses (25) are bonded to the inner wall of the shell (20), wherein two ends of one elastic hose (25) are respectively connected to the air storage box (17) and one of the folded line tubes (16), and two ends of the other elastic hose (25) are respectively connected to the insulating gas storage box (19) and the other folded line tube (16).

6. The lightning arrester easy to maintain according to claim 5, characterized in that: The motor (24) is fixed to the side wall of the housing (20) by means of bolts, and the output shaft of the motor (24) is connected to the main shaft (21) by means of a coupling.

7. The lightning arrester easy to maintain according to claim 6, characterized in that: A plurality of support plates (22) are fixed to the outer wall of the main shaft (21), and a roller (23) is rotatably connected to the inner side of the support plate (22), and the roller (23) rolls and presses to fit the outer wall of the elastic hose (25).

8. The lightning arrester easy to maintain according to claim 7, characterized in that: A voltmeter or an ammeter is provided in the circuit of the resistor (8).

9. The lightning arrester easy to maintain according to claim 3, characterized in that: A plurality of "T"-shaped bosses (31) are fixed to the outer wall of the bottom of the base (12); a connecting sleeve rod (29) is movably sleeved on the outer wall of the "T"-shaped bosses (31); and the outer wall of the connecting sleeve rod (29) is slidably connected to the installation sleeve rod (27) via a sliding rod (28).

10. The lightning arrester easy to maintain according to claim 9, characterized in that: Shock-absorbing sleeves (30) are provided on both sides of the connecting sleeve rod (29), and a spring (26) is buckled on the opposite side of the mounting sleeve rod (27) and the connecting sleeve rod (29).

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