A high voltage surge arrester

Abstract

The present application relates to the technical field of electrical equipment, and particularly relates to a high-voltage lightning arrester, which comprises a connecting joint, an insulating skirt support, an arc-shaped sealing plate, an arc-shaped butt joint plate, a sealing arc-shaped plate, an insulating sheet, an auxiliary block and an insulating sealing half-arc washer and the like; an operator first fixes a plurality of groups of sections after the cooperation of the arc-shaped sealing plate, the arc-shaped butt joint plate and the sealing arc-shaped plate after the addition of insulating material, and then connects the plurality of groups of sections in occlusion, and then installs connecting joints at both ends of the plurality of groups of sections, and then the high-voltage lightning arrester can be installed and used; in the process of use, the insulating material can be removed by removing the arc-shaped sealing plate and the sealing arc-shaped plate and the insulating skirt support, thereby greatly reducing the difficulty of maintenance, effectively saving the maintenance cost, adjusting the insulating effect, having good practicability and economy, and being beneficial to the promotion and use of the equipment.

Description

Technical Field

[0001] This invention relates to the technical field of electrical equipment, and more specifically to a high-voltage surge arrester. Background Technology

[0002] High-voltage surge arresters are traditional electrical devices that mainly utilize the different resistance values ​​of the insulating material inside the arrester to different voltages to achieve the switching on and off of high-voltage circuits and protect the safety of other electrical equipment.

[0003] Traditional high-voltage surge arresters, whose insulation material is mainly zinc oxide, are highly susceptible to moisture damage during use, which can cause hygroscopic reactions and affect contact resistance. Furthermore, their structure limits maintenance difficulty, requiring complete disassembly for insulation material testing, significantly increasing maintenance costs. Additionally, the resistance parameters of these arresters are typically fixed, and in some areas where voltage fluctuations necessitate precise circuit switching, excessively high or low switching values ​​can compromise safety, making it impossible to configure them to meet actual needs. Summary of the Invention

[0004] In order to solve the above-mentioned problems in the existing technology, the present invention aims to provide a high-voltage surge arrester with a simple structure, which can effectively realize resistance adjustment and simplify the maintenance process.

[0005] The technical solution adopted in this invention is as follows: a high-voltage surge arrester, comprising multiple sets of movable sections connected in sequence, with insulating material abutting against the middle of adjacent movable sections in sequence, and connecting joints provided at both ends of several movable sections, the connecting joints being used to connect to the installation area;

[0006] The movable section includes an arc-shaped butt plate and an arc-shaped sealing plate, which are snapped together to form a sealing tube. The sealing tube has a male interface and a female interface at both ends. The male and female interfaces of adjacent sealing tubes are sequentially interlocked. An insulating skirt is provided on the outer side of the sealing tube, which can be used to fix and abut against the sealing tube.

[0007] The sealing tube is provided with a sealing arc plate. The two ends of the sealing arc plate abut against the inner cavity side of the arc-shaped butt plate. The sealing arc plate partially fits the inner cavity side of the arc-shaped sealing plate. The insulating material is fixedly connected between the arc-shaped butt plate and the inner cavity side of the sealing arc plate by a movable part.

[0008] In one embodiment, the arc-shaped mating plate includes a first arc-shaped plate, and the arc-shaped sealing plate includes a second arc-shaped plate, wherein the first arc-shaped plate and the second arc-shaped plate present a semi-circular tubular structure.

[0009] In one embodiment, the male interface includes a thin semi-arc buckle plate disposed at one end of the first arc plate and a thick semi-arc buckle plate disposed at the same end of the second arc plate. The ends of the thin semi-arc buckle plate and the thick semi-arc buckle plate abut against each other. The female interface includes a semi-arc connecting pipe disposed at the other end of the first arc plate and a semi-arc connecting block disposed at the same end of the second arc plate. The end of the semi-arc connecting pipe close to the first arc plate is provided with a sealing ring. The sealing ring is connected to the outer periphery of the first arc plate. The side of the sealing ring away from the thin semi-arc buckle plate is provided with an abutting semi-circular ring. The outer periphery of the abutting semi-circular ring is fixedly connected to the inner cavity side of the semi-arc connecting pipe. The thick semi-arc buckle plate and the semi-arc connecting block are fixedly connected to the outer arc line of the end of the second arc plate. A desiccant filling groove is provided between two adjacent sets of the end sides of the second arc plate for filling with desiccant filler.

[0010] In one embodiment, the insulating skirt includes two sets of interlocking semi-cones, which have a semi-arc umbrella-shaped structure. The two sets of interlocking semi-cones respectively abut against the outer sides of the first arc-shaped plate and the second arc-shaped plate. The middle of the interlocking semi-cones is provided with a plurality of connecting holes. The connecting holes at the same position of the two sets of interlocking semi-cones are interconnected. A connecting fixing plate is provided in the connecting hole. The adjacent connecting fixing plates are connected by a fastener.

[0011] In one embodiment, the fastener is a bolt; or a fixing pin.

[0012] In one embodiment, the sealing arc plate includes a third arc plate that is also semi-circular tubular. The third arc plate has two sets of second long rod grooves on the abutting side near the thin semi-circular buckle plate. The second long rod grooves are provided with interlocking long rods. The end of the abutting semi-circular ring is provided with a beveled notch facing the sealing ring. The end of the semi-circular connecting block is provided with a first long rod groove. After the first long rod groove on the semi-circular connecting block abuts against the second long rod groove on the third arc plate of the adjacent movable section, it pushes the interlocking long rod to abut against the adjacent beveled notch.

[0013] In one embodiment, an insulating and sealing semi-circular washer is provided between the abutting semi-circular ring and the thin semi-circular buckle plate in adjacent movable sections, and the thin semi-circular buckle plate abuts against the inner side of the adjacent semi-circular connecting pipe.

[0014] In one embodiment, the insulating material includes multiple sets of insulating sheets that abut against each other.

[0015] In one embodiment, the movable component includes two sets of auxiliary blocks. The auxiliary blocks are fixedly connected to the adjacent arc-shaped docking plate and the inner cavity side of the sealing arc-shaped plate. A rotating slider is provided on the opposite side of the auxiliary blocks. The middle part of the rotating slider is hinged to the auxiliary block by a movable rotating rod. A movable guide plate is provided on the opposite side of the two sets of rotating sliders. One side of the movable guide plate is slidably connected to the rotating slider.

[0016] In one embodiment, the connecting joint includes a fixed cap, which has a bottle cap-shaped structure. The adjacent thin semi-circular buckle plate and the thick semi-circular buckle plate pass through and abut against the inner cavity side of the fixed cap. The end of the fixed cap is provided with two sets of semi-circular fixing rings. The semi-circular fixing rings abut against the buckled thin semi-circular buckle plate and the thick semi-circular buckle plate on the other side facing the inner cavity of the fixed cap and are then fixedly connected to the fixed cap. The fixed cap is provided with a threaded abutment post in the middle. The threaded abutment post is threadedly connected to the fixed cap and abuts against the adjacent insulating material. The threaded abutment post is provided with a connecting plate with holes.

[0017] The beneficial effects of this invention are as follows: This invention is a high-voltage surge arrester with a simple structure, which effectively achieves resistance adjustment and simplifies the maintenance process. The specific implementation method is as follows:

[0018] First, the required number of sets of movable joints with corresponding resistance values ​​are clamped by thin semi-circular fasteners and insulated sealing semi-circular washers, which are then slid into adjacent sliding gaps. Next, multiple sets of insulating sheets are placed on the movable guide plate, ensuring the insulating materials of the movable joints are in contact with each other. Then, the engagement rod is placed in the second long rod groove of the third arc-shaped plate, and the third arc-shaped plate is snapped into the inner cavity of the thin semi-circular fastener. The movable guide plate on the third arc-shaped plate also abuts against the insulating sheets. Then, the third arc-shaped plates on adjacent third arc-shaped plates pass into the beveled notch of the semi-circular ring on the adjacent first arc-shaped plate, allowing the two sets of movable joints to engage and connect via the engagement rod on the third arc-shaped plate, thus completing the connection. Afterwards, the second arc-shaped plate is added in sequence. During the process of adding the second arc-shaped plate, the two ends of the second arc-shaped plate, together with the thick semi-arc buckle plate, the semi-arc connecting block, and the inner third arc-shaped plate, form a desiccant filling groove for placing desiccant. The desiccant filling groove can be filled with desiccant material to prevent moisture. After the plates are closed in sequence, the two sets of interlocking semi-conical fasteners are connected to both sides of the movable section and then fixed with fixing pins. This makes the second arc-shaped plate press the sealing arc-shaped plate close to the arc-shaped mating plate. At the same time, during the pressing process, the interlocking long rod on the third arc-shaped plate presses the beveled corner, which drives the abutting semi-circular ring to press the insulating sealing semi-arc washer close to the thin semi-arc buckle plate, thus achieving a more effective sealing and fixing.

[0019] After completion, insert both ends into the fixing cover, seal the ends of the fixing cover with a semi-circular fixing ring and abut against the adjacent male and female interfaces, and weld them in place. Then rotate the threaded abutment post in the middle of the fixing cover to complete the abutment, and it can be installed and used.

[0020] During maintenance, there is no need to disassemble the surge arrester. After disassembling the two adjacent sets of interlocking semi-cones, the two sets of second arc plates can be removed to inspect the insulating sheets inside the movable section of the second set. After completion, install and check in sequence. Since multiple sets of insulating sheets are held in place by the two sets of threaded abutment posts, they will not fall off. Continue to move the third arc plate outward to check whether the internal insulating sheets are damp. If some are damp, after reinstalling the first set of second and third arc plates, move the rotating slider under the lower insulating sheet guide plate to tilt it, causing multiple sets of insulating sheets to be misaligned and fall off. The upper ones can continue to be held in place by the fixed movable guide plate. After replacing multiple sets of insulating sheet posts, simple maintenance and replacement of insulating sheets can be achieved, which saves costs.

[0021] The device has a simple structure and effectively utilizes multiple sets of connected movable joints to change the resistance switching limit. At the same time, it uses an interlocking structure to achieve rapid inspection and replacement, effectively saving maintenance costs. It has good practicality and economy, which is beneficial to the promotion and use of the equipment. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention;

[0025] Figure 3 This is a partial exploded three-dimensional structural schematic diagram of the present invention;

[0026] Figure 4 This is a three-dimensional structural diagram of the arc-shaped sealing plate of the present invention;

[0027] Figure 5 This is a three-dimensional structural diagram of the sealing arc plate of the present invention;

[0028] Figure 6 This is a three-dimensional structural diagram of the arc-shaped butt joint plate of the present invention;

[0029] Figure 7 This is a partial exploded three-dimensional structural schematic diagram of the present invention;

[0030] Figure 8 This is a partial three-dimensional structural diagram of the installation of the present invention.

[0031] Reference numerals: 1. Connecting joint; 11. Threaded abutment post; 112. Connecting plate; 113. Fixing cap; 114. Semicircular fixing ring; 2. Insulating skirt; 21. Interlocking semi-cone; 22. Connecting hole; 23. Connecting fixing plate; 231. Fixing pin; 3. Arc-shaped sealing plate; 31. Second arc-shaped plate; 32. Thick semi-arc buckle plate; 33. Semi-arc connecting block; 331. First long rod groove; 4. Arc-shaped butt plate; 41. First arc-shaped plate; 42. 43. Thin semi-circular buckle plate; 44. Semi-circular connecting pipe; 45. Sealing ring; 46. Abutting semi-circular ring; 47. Sliding gap; 48. Angled notch; 59. Sealing arc plate; 50. Third arc plate; 511. Second long rod groove; 512. Engaging long rod; 61. Insulating sheet; 72. Auxiliary block; 73. Movable rotating rod; 74. Rotating slider; 75. Movable guide guard plate; 80. Desiccant filler groove; 91. Insulating sealing semi-circular washer. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0034] The following is combined with Figure 1-8 This invention describes a high-voltage surge arrester, comprising multiple sets of movable sections connected in sequence. Insulating materials, such as high-resistance materials for low voltage and low-resistance materials for high voltage, are sequentially abutted at the middle of adjacent movable sections to facilitate conductivity under high voltage. The insulating materials include multiple sets of insulating sheets 61 that abut against each other. Connecting joints 1 are provided at both ends of several movable sections for connecting to the installation area.

[0035] The active section includes an arc-shaped connecting plate 4 and an arc-shaped sealing plate 3. The arc-shaped connecting plate 4 includes a first arc-shaped plate 41, and the arc-shaped sealing plate 3 includes a second arc-shaped plate 31. The first arc-shaped plate 41 and the second arc-shaped plate 31 form a semi-circular arc-shaped tubular structure. The arc-shaped connecting plate 4 and the arc-shaped sealing plate 3 are interlocked to form a sealing tube. Both ends of the sealing tube are provided with male and female interfaces. Adjacent sealing tube male and female interfaces are sequentially interlocked. Specifically, the male interface includes a thin semi-arc fastening plate 42 located at one end of the first arc-shaped plate 41 and a thick semi-arc fastening plate 32 located at the through end of the second arc-shaped plate 31. The ends of the thin semi-arc fastening plate 42 and the thick semi-arc fastening plate 32 abut against each other. The female interface includes a semi-arc fastening plate 42 located at the other end of the first arc-shaped plate 41. The arc connecting pipe 43 and the second arc plate 31 are on the same side of the semi-arc connecting block 33. The end of the semi-arc connecting pipe 43 that is close to the first arc plate 41 is provided with a sealing ring 431. The sealing ring 431 is connected to the outer side of the first arc plate 41. The side of the sealing ring 431 away from the thin semi-arc buckle plate 42 is provided with an abutting semi-circular ring 44. The outer side of the abutting semi-circular ring 44 is fixedly connected to the inner cavity side of the semi-arc connecting pipe 43. The thick semi-arc buckle plate 32 and the semi-arc connecting block 33 are fixedly connected to the outer arc line of the end of the second arc plate 31. A desiccant filling groove 8 is provided between the two adjacent ends of the second arc plate 31 for filling with desiccant filling material, such as silica gel particles. An insulating skirt 2 is provided on the outer side of the sealing pipe for fixing the abutting sealing pipe.

[0036] The sealing tube is provided with a sealing arc plate 5. The two ends of the sealing arc plate 5 abut against the inner cavity side of the arc-shaped butt plate 4. The sealing arc plate 5 partially fits against the inner cavity side of the arc-shaped sealing plate 3. The insulating material is fixedly connected between the inner cavity side of the arc-shaped butt plate 4 and the sealing arc plate 5 by a movable part. The insulating skirt 2 includes two sets of interlocking half cones 21. The interlocking half cones 21 have a semi-arc umbrella-shaped structure. The two sets of interlocking half cones 21 abut against the outer periphery of the first arc plate 41 and the second arc plate 31 respectively. The middle part of the interlocking half cones 21 is provided with several connecting holes 22. The connecting holes 22 at the same position of the two sets of interlocking half cones 21 are interconnected. The connecting holes 22 are provided with connecting fixing plates 23. The adjacent connecting fixing plates 23 are connected by fixing parts.

[0037] Specifically, the fastener is a bolt; or a fixing pin 231, which can be changed depending on the difficulty of disassembly.

[0038] Beneficially, the sealing arc plate 5 includes a third arc plate 51, which is also a semi-circular tubular shape. The length can be determined according to actual conditions, ideally with two sets of third arc rods abutting each other for easy disassembly. It should not be too short, and can form a desiccant filling groove 8 with the two ends of the second arc plate 31, the thick semi-circular buckle plate 32, the semi-circular connecting block 33, and the inner third arc plate 51, allowing for the placement of a desiccant. The third arc plate 51 has two sets of second long rod grooves 511 on the abutting side near the thin semi-circular buckle plate 42. Each second long rod groove 511 contains an interlocking long rod 512. The end of the semicircular ring 44 is provided with a beveled notch 442 facing the sealing ring 431, and the end of the semi-arc connecting block 33 is provided with a first long rod groove 331. After the first long rod groove 331 on the semi-arc connecting block 33 abuts against the second long rod groove 511 on the third arc plate 51 on the adjacent movable section, the biting long rod 512 is pushed to abut against the nearby beveled notch 442. Through the above structure, the two adjacent sets of movable sections are biting and connected, so that the insulating material can be exposed after the arc sealing plate 3 and the sealing arc plate 5 are disassembled, which is convenient for maintenance.

[0039] In practice, during maintenance, there is no need to disassemble the surge arrester. After disassembling the two adjacent sets of interlocking half cones 21, the two sets of second arc plates 31 can be removed to inspect the insulating sheet 61 inside the movable section of the second set. After completion, the installation is completed in sequence and the inspection is carried out in the same way. Since the multiple sets of insulating sheets 61 are held by the two sets of threaded abutment posts 11, they will not fall off. Continue to move the third arc plate 51 outward to check whether the internal insulating sheet 61 is damp. If it is partially damp, the first set of second arc plates 31 and third arc plates 51 can be reinstalled. Then, the rotating slider 72 under the movable guide plate 73 of the lower insulating sheet 61 is tilted, causing the multiple sets of insulating sheets 61 to be misaligned and fall off. The upper ones can continue to be held by the fixed movable guide plate 73. After the replacement of the multiple sets of insulating sheet 61 posts is completed, the maintenance and replacement of the insulating sheet 61 can be achieved.

[0040] Beneficially, an insulating and sealing semi-circular washer 9, such as a polymer insulating rubber, is provided between the abutting semi-circular ring 44 and the thin semi-circular buckle plate 42 in the adjacent movable section to improve the sealing efficiency. It is installed in the sliding gap 441, and the thin semi-circular buckle plate 42 abuts against the inner side of the adjacent semi-circular connecting pipe 43.

[0041] Beneficially, the movable component includes two sets of auxiliary blocks 71. The auxiliary blocks 71 are fixedly connected to the adjacent arc-shaped docking plate 4 and the inner cavity side of the sealing arc-shaped plate 5. A rotating slider 72 is provided on the opposite side of the auxiliary blocks 71. The middle part of the rotating slider 72 is hinged to the auxiliary blocks 71 by a movable rotating rod 711. A movable guide plate 73 is provided on the opposite side of the two sets of rotating sliders 72. One side of the movable guide plate 73 is slidably connected to the rotating slider 72, such as a dovetail groove, to facilitate the adjustment of the fixed position of multiple sets of insulating sheets 61.

[0042] Beneficially, the connecting joint 1 includes a fixing cover 113, which has a bottle cap-shaped structure. A thin semi-circular buckle plate 42 and a thick semi-circular buckle plate 32 are inserted into and abut against the inner cavity side of the fixing cover 113. The end of the fixing cover 113 is provided with two sets of semi-circular fixing rings 114. The semi-circular fixing rings 114 abut against the thin semi-circular buckle plate 42 and the thick semi-circular buckle plate 32 facing the other side of the inner cavity of the fixing cover 113 and are fixedly connected to the fixing cover 113. A threaded abutment post 11 is provided in the middle of the fixing cover 113. The threaded abutment post 11 is threadedly connected to the fixing cover 113 and abuts against the adjacent insulating material. A connecting plate 112 with holes is provided on the threaded abutment post 11.

[0043] During installation, the above structures can be installed using either standard insulating or non-insulating materials, and the sealing methods should also refer to the standards, including but not limited to rubber seals and insulating colloid seals. The actual needs should be considered during implementation.

[0044] Working principle of this invention:

[0045] First, the required number of movable joints with corresponding resistance values ​​are clamped by the thin semi-circular fastener plates 42, which hold the insulating sealing semi-circular washers 9 and slide into the adjacent sliding gaps 441. Then, multiple sets of insulating sheets 61 are placed on the movable guide plate 73 in sequence, so that the insulating materials of the multiple movable joints abut against each other. After the biting long rod 512 is placed in the second long rod groove 511 of the third arc plate 51, the third arc plate 51 is fastened into the inner cavity of the thin semi-circular fastener plate 42, and the movable guide plate 73 on the third arc plate 51 also abuts against the insulating sheet 61. Then, the third arc plate 51 on the adjacent third arc plate 51 passes into the beveled notch 442 of the semi-circular ring 44 on the adjacent first arc plate 41, so that the two sets of movable joints are connected by biting long rods 512 on the third arc plate 51. After the connection is completed, the second arc plate 31 is added in sequence. During the process of adding the second arc plate 31, the two ends of the second arc plate 31, together with the thick semi-arc buckle plate 32, the semi-arc connecting block 33 and the inner third arc plate 51, form a desiccant filling groove 8 for placing desiccant. The desiccant filling groove 8 can be filled with desiccant material to prevent moisture. After the plates are added in sequence, the two sets of interlocking semi-cones 21 are fastened to both sides of the movable section and then fixed with fixing pins 231. This makes the second arc plate 31 press the sealing arc plate 5 close to the arc-shaped mating plate 4. At the same time, during the pressing process, the interlocking long rod 512 on the third arc plate 51 presses the inclined notch 442, which drives the abutting semi-circular ring 44 to press the insulating sealing semi-arc washer 9 close to the thin semi-arc buckle plate 42, thus achieving a more effective sealing and fixing.

[0046] After completion, insert both ends into the fixing cover 113, use the semi-circular fixing ring 114 to seal the end of the fixing cover 113 and abut against the adjacent male and female interfaces, and weld them in place. Then rotate the threaded abutment post 11 in the middle of the fixing cover 113 so that the threaded abutment post 11 completes the abutment, and it can be installed and used.

[0047] During maintenance, there is no need to disassemble the surge arrester. After disassembling the two adjacent sets of interlocking half cones 21, the two sets of second arc plates 31 can be removed to inspect the insulating sheet 61 inside the movable section of the second set. After completion, install and check in sequence. Since multiple sets of insulating sheets 61 are held by the two sets of threaded abutment posts 11, they will not fall off. Continue to move the third arc plate 51 outward to check whether the internal insulating sheet 61 is damp. If it is partially damp, the first set of second arc plates 31 and third arc plates 51 can be reinstalled. Then, move the rotating slider 72 under the movable guide plate 73 of the lower insulating sheet 61 guide to tilt it, causing multiple sets of insulating sheets 61 to be misaligned and fall off. The upper ones can continue to be held by the fixed movable guide plate 73. After replacing the columns of multiple sets of insulating sheets 61, the maintenance and replacement of insulating sheets 61 can be achieved easily, which saves costs.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the invention or the scope defined by the claims of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A high-voltage surge arrester, characterized in that: It includes multiple sets of movable sections, which are connected in sequence. The middle of adjacent movable sections is successively abutted by insulating material. Several movable sections are provided with connecting joints (1) at both ends. The connecting joints (1) are used to connect to the installation area. The movable section includes an arc-shaped butt plate (4) and an arc-shaped sealing plate (3). The arc-shaped butt plate (4) and the arc-shaped sealing plate (3) are fastened together to form a sealing tube. The sealing tube has a male interface and a female interface at both ends. The male and female interfaces of adjacent sealing tubes are sequentially interlocked. An insulating skirt (2) is provided on the outer side of the sealing tube, which can be used to fix and abut against the sealing tube. The sealing tube is provided with a sealing arc plate (5), the two ends of the sealing arc plate (5) abut against the inner cavity side of the arc-shaped butt plate (4), the sealing arc plate (5) partially fits the inner cavity side of the arc-shaped sealing plate (3), and the insulating material is fixedly connected between the inner cavity side of the arc-shaped butt plate (4) and the sealing arc plate (5) by a movable part; The arc-shaped butt plate (4) includes a first arc-shaped plate (41), and the arc-shaped sealing plate (3) includes a second arc-shaped plate (31). The first arc-shaped plate (41) and the second arc-shaped plate (31) present a semi-circular arc tubular structure. The male interface includes a thin semi-arc buckle plate (42) located at one end of the first arc-shaped plate (41) and a thick semi-arc buckle plate (32) located at the through end of the second arc-shaped plate (31). The ends of the thin semi-arc buckle plate (42) and the thick semi-arc buckle plate (32) abut against each other. The female interface includes a semi-arc connecting pipe (43) located at the other end of the first arc-shaped plate (41) and a semi-arc connecting block (33) located at the same side end of the second arc-shaped plate (31). The end of the semi-arc connecting pipe (43) that is close to the first arc-shaped plate (41) is provided with a sealing ring (431). The sealing ring (431) is connected to the outer side of the first arc plate (41). The sealing ring (431) is provided with an abutting semicircular ring (44) on the side away from the thin semi-arc buckle plate (42). The outer side of the abutting semicircular ring (44) is fixedly connected to the inner cavity side of the semi-arc connecting pipe (43). The thick semi-arc buckle plate (32) and the semi-arc connecting block (33) are fixedly connected to the outer arc line of the end of the second arc plate (31). A desiccant filling groove (8) is provided between the two adjacent ends of the second arc plate (31) for filling with desiccant filling.

2. The high-voltage surge arrester according to claim 1, characterized in that: The insulating skirt support (2) includes two sets of interlocking semi-cones (21). The interlocking semi-cones (21) have a semi-arc umbrella-shaped structure. The two sets of interlocking semi-cones (21) respectively abut against the outer sides of the first arc plate (41) and the second arc plate (31) that are close to each other. The interlocking semi-cones (21) are provided with several connecting holes (22) in the middle. The connecting holes (22) at the same position of the two sets of interlocking semi-cones (21) are interconnected. The connecting holes (22) are provided with connecting fixing plates (23). The connecting fixing plates (23) that are close to each other are connected by fasteners.

3. The high-voltage surge arrester according to claim 2, characterized in that: The fastener is a bolt; or a fixing pin (231).

4. The high-voltage surge arrester according to claim 1, characterized in that: The sealing arc plate (5) includes a third arc plate (51) that is also semi-circular tubular. The third arc plate (51) has two sets of second long rod grooves (511) on the abutting side near the thin semi-circular buckle plate (42). The second long rod groove (511) is provided with a biting long rod (512). The end of the abutting semi-circular ring (44) is provided with a beveled notch (442) facing the sealing ring (431). The end of the semi-circular connecting block (33) is provided with a first long rod groove (331). After the first long rod groove (331) on the semi-circular connecting block (33) abuts against the second long rod groove (511) on the third arc plate (51) on the adjacent movable section, it pushes the biting long rod (512) to abut against the adjacent beveled notch (442).

5. The high-voltage surge arrester according to claim 1, characterized in that: An insulating and sealing semi-circular washer (9) is provided between the abutting semi-circular ring (44) and the thin semi-circular buckle plate (42) in the adjacent movable section, and the thin semi-circular buckle plate (42) abuts against the inner side of the adjacent semi-circular connecting pipe (43).

6. The high-voltage surge arrester according to claim 1, characterized in that: The insulating material includes multiple sets of insulating sheets (61), which abut against each other.

7. The high-voltage surge arrester according to claim 6, characterized in that: The movable component includes two sets of auxiliary blocks (71). The auxiliary blocks (71) are fixedly connected to the inner cavity of the adjacent arc-shaped docking plate (4) and the sealing arc-shaped plate (5). A rotating slider (72) is provided on the opposite side of the auxiliary blocks (71). The middle part of the rotating slider (72) is hinged to the auxiliary blocks (71) by a movable rotating rod (711). A movable guide plate (73) is provided on the opposite side of the two sets of rotating sliders (72). One side of the movable guide plate (73) is slidably connected to the rotating slider (72).

8. The high-voltage surge arrester according to claim 1, characterized in that: The connecting joint (1) includes a fixing cap (113), which has a bottle cap-shaped structure. The adjacent thin semi-arc buckle plate (42) and thick semi-arc buckle plate (32) pass through and abut against the inner cavity side of the fixing cap (113). The end of the fixing cap (113) is provided with two sets of semi-circular fixing rings (114). The semi-circular fixing rings (114) abut against the buckled thin semi-arc buckle plate (42) and thick semi-arc buckle plate (32) and are fixedly connected to the fixing cap (113) on the other side of the inner cavity of the fixing cap (113). The fixing cap (113) is provided with a threaded abutment post (11) in the middle. The threaded abutment post (11) is threadedly connected to the fixing cap (113) and abuts against the adjacent insulating material. The threaded abutment post (11) is provided with a connecting plate (112) with holes.

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