Quick replacement device and quick disassembly method for line lightning arrester

Abstract

The invention belongs to the field of lightning arresters, particularly relates to a rapid replacement device and a rapid disassembly method for a line lightning arrester, and provides the following scheme aiming at the problems that an existing line lightning arrester usually needs to use various tools, the disassembly process is also complicated, each fastener needs to be disassembled step by step, and the fasteners may loosen. The lightning arrester comprises a lightning arrester body and a mounting frame, a fixed outer cylinder is fixedly embedded in the mounting frame, a mounting top plate is fixedly mounted at the bottom of the lightning arrester body, and two limiting vertical plates which are symmetrically arranged are slidably connected to the bottom of the mounting top plate. According to the technical scheme, by arranging the rotary limiting disc and mutual cooperation of all the components, when the mounting top plate can be quickly inserted into the fixed outer cylinder to complete mounting and dismounting, the mounting top plate can be directly pulled out finally by rotating the rotary limiting disc, driving a series of components to act and releasing all clamping and limiting states, and the whole process is easy to operate and does not need additional tools.

Description

Technical Field

[0001] The present invention relates to the technical field of lightning arresters, and in particular to a quick replacement device and a quick disassembly method for a line lightning arrester. Background Art

[0002] In the power system, line lightning arrester is an important device to protect power equipment from lightning overvoltage.

[0003] Traditional line arresters present numerous inconveniences during installation and replacement. For one thing, traditional installation methods typically require the use of multiple tools, including bolts and nuts, to secure the arrester to the mounting bracket. This cumbersome installation process consumes significant labor and time, especially in complex high-altitude environments, increasing operational difficulty and safety risks.

[0004] On the other hand, when the arrester fails or requires regular maintenance and replacement, the disassembly process is equally complicated, requiring the gradual removal of each fastener. During the disassembly process, the arrester and related components may be damaged, affecting its reuse.

[0005] In addition, the traditional installation structure also has certain shortcomings in terms of stability and reliability. During long-term operation, due to vibration and temperature changes, the fasteners may become loose, resulting in unstable installation of the lightning arrester and affecting its protection effect.

[0006] Therefore, it is of great practical significance to develop a line lightning arrester device that can be quickly replaced. Summary of the Invention

[0007] The purpose of the present invention is to solve the many inconveniences in the installation and replacement process of line lightning arresters existing in the prior art. On the one hand, the traditional installation method usually requires the use of multiple tools to fix the lightning arrester on the mounting frame with the help of bolts and nuts. The installation process is cumbersome and consumes a lot of manpower and time, especially in the complex environment of high-altitude operations, which increases the difficulty of operation and safety risks. On the other hand, when the lightning arrester fails or needs regular maintenance and replacement, the disassembly process is equally complicated, and each fastener needs to be gradually removed. In addition, the lightning arrester and related components may be damaged during the disassembly process, affecting its reuse. In addition, the traditional mounting structure also has certain deficiencies in stability and reliability. During long-term operation, due to vibration and temperature changes, the fasteners may become loose, resulting in unstable installation of the lightning arrester, affecting its protective effect. The proposed line lightning arrester quick replacement device and quick disassembly method are provided.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A quick replacement device for a line lightning arrester includes an arrester body and a mounting frame, wherein a fixed outer cylinder is fixedly embedded in the mounting frame, a mounting top plate is fixedly mounted on the bottom of the arrester body, and two symmetrically arranged limit risers are slidably connected to the bottom of the mounting top plate, and the limit risers are detachably connected to the fixed outer cylinder via a fixing assembly;

[0010] The inner wall of the fixed outer cylinder is slidably connected to the limiting bottom plate through a sliding assembly, and a support block and a top block are fixedly installed on the top of the limiting bottom plate, and the support block is used to support the limiting vertical plate;

[0011] The mounting top plate is provided with a limiting assembly for locking the limiting vertical plate;

[0012] A brake assembly is provided at the bottom of the limiting base plate for controlling the sliding assembly;

[0013] During installation, the installation top plate is inserted into the fixed outer cylinder, the fixing component is automatically engaged, and the limiting component locks the limiting vertical plate; during disassembly, the brake component is operated to unlock, the limiting component releases the limiting vertical plate, and the installation top plate can be pulled out.

[0014] In one possible design, the fixing assembly includes a first rectangular groove formed on one side of the limiting vertical plate, a first clamping block slidingly extending through the interior of the first rectangular groove, a second compression spring disposed between one side of the first clamping block and an inner wall of one side of the first rectangular groove, first clamping grooves formed on both inner walls of the fixed outer cylinder, and the first clamping block engaging with the first clamping grooves;

[0015] During installation, the arc surface of the first clamping block contacts the inner wall of the fixed outer cylinder and contracts. When it moves to the first clamping slot position, the second compression spring pushes the first clamping block into the first clamping slot.

[0016] In one possible design, the limit assembly includes a first circular groove formed at the bottom of the mounting top plate, a top push plate being slidably connected to the interior of the first circular groove, two symmetrical top rectangular blocks being fixedly mounted on the bottom of the top push plate, and a first compression spring being provided between the top of the top push plate and the top inner wall of the first circular groove;

[0017] A fourth rectangular groove is formed on one side of the top rectangular block, a third clamping block is slidably penetrated inside the fourth rectangular groove, a third compression spring is provided between one end of the third clamping block and an inner wall of one side of the fourth rectangular groove, a second clamping groove is formed on one side of the limiting vertical plate, and the third clamping block is engaged with the second clamping groove;

[0018] During installation, the third clamping block is inserted into the second clamping slot to lock the position of the limiting vertical plate.

[0019] In one possible design, the sliding assembly includes arc-shaped sliders fixedly connected to both sides of the limiting base plate, the inner wall of the fixed outer cylinder is provided with two symmetrical semi-arc-shaped grooves, the tops of the semi-arc-shaped grooves are provided with vertical grooves, and the arc-shaped sliders are slidably connected in the semi-arc-shaped grooves;

[0020] A second rectangular groove is formed on one side of the arc-shaped slider, and a third rectangular groove is formed on the other side. The third rectangular groove is connected to the second rectangular groove. A connecting rod is slidably passed through the interior of the third rectangular groove. One end of the connecting rod is fixedly connected to a limit block. A first tension spring is provided between one side of the limit block and an inner wall of one side of the second rectangular groove.

[0021] During disassembly, the limiting block is clamped into the third clamping groove on the inner wall of the semi-arc groove to brake the arc-shaped slider, and the brake is released after pulling the connecting rod.

[0022] In one possible design, the brake assembly includes a placement cavity formed at the bottom of the limiting base plate, a rotating shaft being rotatably connected to the interior of the placement cavity, a rotating plate being fixedly sleeved on the outer wall of the rotating shaft, an L-shaped operating hole being formed at the bottom of the rotating plate, and one end of the rotating plate being in contact with the connecting rod;

[0023] A terminal is fixedly mounted on the bottom of the arrester body, and a rotation limit plate is fixedly sleeved on the outer wall of the terminal, and second clearance holes are opened on both sides of the rotation limit plate;

[0024] During disassembly, the rotation limit plate is rotated to align the second clearance hole with the rotation plate, and the L-shaped operation hole is operated to rotate the rotation plate to release the interference with the connecting rod.

[0025] In one possible design, a fifth rectangular groove is formed at the bottom of the top rectangular block, the fifth rectangular groove is connected to the fourth rectangular groove, a push slider is slidably passed through the interior of the fifth rectangular groove, a trapezoidal hole is formed at the bottom of the third clamping block, and the push slider is slidably engaged with the trapezoidal hole;

[0026] A positioning limit hole is provided on the top of the limit vertical plate, and the push slider is engaged with the positioning limit hole;

[0027] During disassembly, the top block pushes the sliding block to move upward, and the sliding block pushes the third clamping block to disengage from the second clamping slot along the inclined surface of the trapezoidal hole.

[0028] In a possible design, a first clearance hole is opened inside the limiting bottom plate, and the first clearance hole is clearance-matched with the terminal;

[0029] A second tension spring is provided between the two position-limiting vertical plates;

[0030] During disassembly, the second tension spring pulls the two limiting vertical plates toward each other, so that the first clamping block is disengaged from the first clamping slot.

[0031] In a possible design, two first tension springs are provided in the second rectangular groove on the side of the arc-shaped slider, and the limiting block is elastically connected to the inner wall of the second rectangular groove through the first tension springs;

[0032] Wherein, in the braking state, the first tension spring pulls the limiting clamping block into the third clamping slot.

[0033] A quick-disassembly method for a line lightning arrester, based on the above-mentioned quick-replacement device for a line lightning arrester, comprises the following steps:

[0034] Installation steps: Insert the installation top plate into the fixed outer cylinder. When the first clamping block contacts the inner wall of the fixed outer cylinder and contracts and moves to the first clamping slot position, the second compression spring pushes the first clamping block into the first clamping slot, and at the same time, the third clamping block is clamped into the second clamping slot, locking the limit vertical plate;

[0035] Disassembly steps: rotate the rotation limit plate to align the second clearance hole with the rotation plate, operate the L-shaped operation hole to rotate the rotation plate, the rotation plate disengages from the interference connecting rod, the first tension spring pulls the limit block out of the third slot, and releases the arc slider brake; hold the rotation plate rotation limit bottom plate (9), so that the support block (8) disengages from the limit vertical plate, the top block pushes the slider upward, pushes the slider along the trapezoidal hole inclined surface to push the third block out of the second slot, the second tension spring pulls the limit vertical plates closer to each other, the first block disengages from the first slot, and the top plate is pulled out for installation.

[0036] In the present application, when installing the arrester body, since the arrester body and the mounting top plate are integrated, in the initial state, the two top rectangular blocks are clamped between the two limit vertical plates, and the third clamping block is clamped inside the second clamping groove, thereby preventing the two limit vertical plates from approaching each other. At this time, the mounting top plate is directly inserted into the interior of the fixed outer cylinder, and the arc surfaces of the two first clamping blocks contact the inner wall of the fixed outer cylinder and retract. When the first clamping block moves to one side of the two first clamping grooves, the first clamping block moves laterally under the elastic force of the second compression spring and is inserted into the interior of the first clamping groove. The bottom of the limit vertical plate is supported by the two support blocks. At this time, the mounting top plate and the fixed outer cylinder are quickly installed;

[0037] When the arrester body needs to be disassembled, the rotation limit plate is first rotated. In the initial state of the rotation limit plate, the ends of the two rotating plates are supported. When the two second clearance holes of the rotation limit plate are aligned with the rotating plate, the rotating plate can be rotated around the rotation axis. The setting of the L-shaped operating hole facilitates the extension and expansion of the rotating plate. When the rotating plate is moved out of the interior of the placement cavity, the rotating plate no longer squeezes the connecting rod. The connecting rod and the limiting block move laterally under the tension of the first tension spring. The limiting block is no longer engaged with the third groove on the inner wall of the semi-arc groove, and the braking state of the arc slider can be released.

[0038] At this time, you can hold the two rotating plates adjusted to the vertical state, and the rotating plates drive the limiting bottom plate to rotate, and the limiting bottom plate drives the arc-shaped slider to rotate, and the arc-shaped slider rotates from the inside of the semi-arc groove to the bottom of the vertical groove. At this time, the limiting bottom plate drives the top support block and the top block to rotate, and the support block no longer supports the limiting vertical plate. At the same time, the top block moves to the bottom of the two top rectangular blocks, pushing the limiting bottom plate upward;

[0039] When the third block is moved out of the second slot, the braking state of the two top rectangular blocks comes into contact, and the top rectangular block continues to rise. The top rectangular block pushes the top push plate up, and the top push plate enters the first circular groove and squeezes the first compression spring. When the top rectangular block is separated from the limiting vertical plate, the two limiting vertical plates approach each other under the tension of the second tension spring, thereby quickly separating the first block from the first slot on the side, and then the installation top plate can be directly pulled out. The operation is simple and can be quickly disassembled and assembled without the help of additional tools. It is easy to use.

[0040] Beneficial Effects: This device enables rapid installation and removal of the arrester body. During installation, the automatic engagement of the first clamping block and the first clamping slot, coupled with the interaction of various components, allows the top plate to be quickly inserted into the fixed outer cylinder to complete installation. During removal, the rotating limit plate activates a series of component movements, releasing the various engagements and limits, allowing the top plate to be directly removed. The entire process is simple to operate, requiring no additional tools, significantly reducing assembly and disassembly time and improving work efficiency.

[0041] In the installed state, through the cooperation of multiple blocks and slots, such as the engagement of the third block and the second slot, the engagement of the first block and the first slot, etc., as well as the support and limiting effect of the limiting vertical plate, support block and other components on the installation top plate, the stability of the lightning arrester main body installation is ensured, which can effectively resist external environmental factors and various forces during electrical operation, and ensure the normal operation of the line lightning arrester.

[0042] The designs of the various components in the device are interrelated and logically tight. For example, the brake assembly cooperates with the sliding assembly and the limit assembly. The movement of the rotating plate is controlled by rotating the limit plate, and then the connecting rod and the limit block are controlled to release the brake on the arc-shaped slider, realize the rotation of the limit base plate, and finally drive the top block to release the limit state of the top rectangular block and the limit vertical plate. The entire design is closely linked, reflecting a high degree of rationality, so that the disassembly and assembly operations can be carried out in an orderly and smooth manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of the three-dimensional structure of the quick replacement device for line lightning arresters proposed by the present invention;

[0044] Figure 2 This is a schematic diagram of the three-dimensional structure of the second perspective of the quick replacement device for line lightning arresters proposed by the present invention;

[0045] Figure 3 This is a schematic diagram of the three-dimensional structure of the fixed outer cylinder and the mounting top plate in the quick replacement device for the line lightning arrester proposed by the present invention;

[0046] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the fixed outer cylinder in the quick replacement device for the line lightning arrester proposed by the present invention;

[0047] Figure 5 This is a three-dimensional structural diagram of the installation of the top plate and the limiting vertical plate in the quick replacement device for the line lightning arrester proposed by the present invention;

[0048] Figure 6 This is an exploded view of the installation of the top plate and the limiting vertical plate in the quick replacement device for the line lightning arrester proposed by the present invention;

[0049] Figure 7 This is a schematic diagram of the three-dimensional structure of the fixed outer cylinder in the quick replacement device for the line lightning arrester proposed by the present invention;

[0050] Figure 8 This is a schematic diagram of the three-dimensional structure of the limiting base plate and the supporting block in the quick replacement device for the line lightning arrester proposed by the present invention;

[0051] Figure 9 This is a schematic diagram of the three-dimensional cross-sectional structure of the limiting base plate in the quick replacement device for the line lightning arrester proposed by the present invention;

[0052] Figure 10 This is a schematic three-dimensional cross-sectional view of the rotating plate and the arc-shaped slider in the quick replacement device for line lightning arresters proposed by the present invention;

[0053] Figure 11 This is an exploded view of the top rectangular block and the third clamping block in the quick replacement device for a line lightning arrester proposed by the present invention.

[0054] In the figure: 1. Arrester body; 2. Mounting frame; 3. Terminal; 4. Fixed outer cylinder; 5. Rotating limit plate; 6. Mounting top plate; 7. Top push plate; 8. Support block; 9. Limiting bottom plate; 10. Arc-shaped slider; 11. Limiting vertical plate; 12. Top rectangular block; 13. First clamping block; 14. First circular groove; 15. First compression spring; 16. Positioning limit hole; 17. Second clamping groove; 18. First rectangular groove; 19. Second compression spring; 20. First clamping groove; 21. Vertical slot; 22. Semi-arc slot; 23. Top block; 24. First clearance hole; 25. Rotating plate; 26. Second clearance hole; 27. Placement cavity; 28. L-shaped operating hole; 29. ​​Rotating shaft; 30. First tension spring; 31. Limiting block; 32. Second rectangular slot; 33. Third rectangular slot; 34. Connecting rod; 35. Fourth rectangular slot; 36. Fifth rectangular slot; 37. Trapezoidal hole; 38. Third compression spring; 39. Push slider; 40. Third block; 41. Second tension spring. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0056] In one embodiment, referring to Figure 1-11 The specific implementation of the quick-change device is as follows: The device mainly consists of a lightning arrester body 1 and a mounting frame 2. The mounting frame 2 has a fixed outer cylinder 4 fixedly embedded inside it. The fixed outer cylinder 4 has a top and bottom opening structure. The bottom of the lightning arrester body 1 integrates the wiring terminals 3 and the mounting top plate 6. The bottom of the mounting top plate 6 is symmetrically provided with two limit risers 11. The limit risers 11 are quickly connected to the fixed outer cylinder 4 through a fixing assembly.

[0057] The fixing assembly consists of a first rectangular slot 18, a first clamping block 13, a second compression spring 19, and a first clamping slot 20. The first clamping block 13 slides through the first rectangular slot 18 on the side of the retaining riser 11. The second compression spring 19 is positioned between the first clamping block 13 and the inner wall of the first rectangular slot 18, providing lateral thrust. When the mounting plate 6 is inserted into the fixed outer cylinder 4, the curved surface of the first clamping block 13 contacts the inner wall of the fixed outer cylinder 4 and contracts. When it moves to the first clamping slot 20, the second compression spring 19 pushes the first clamping block 13 into the first clamping slot 20, achieving initial fixation.

[0058] The limiting assembly is integrated into the first circular groove 14 at the bottom of the mounting top plate 6, and includes a top push plate 7, a first compression spring 15, a top rectangular block 12, and a third clamping block 40. The top push plate 7 is connected to the top of the first circular groove 14 through the first compression spring 15, and the top rectangular blocks 12 on both sides of its bottom respectively have a fourth rectangular groove 35 and a fifth rectangular groove 36. The third clamping block 40 is slidably set in the fourth rectangular groove 35, and is provided with thrust by the third compression spring 38. The trapezoidal hole 37 at its bottom forms a linkage structure with the pushing slider 39 in the fifth rectangular groove 36. A second clamping groove 17 is provided on the side of the limiting vertical plate 11, and a positioning limiting hole 16 is provided on the top. When the third clamping block 40 is inserted into the second clamping groove 17 and the pushing slider 39 is inserted into the positioning limiting hole 16, the two limiting vertical plates 11 are locked at a fixed distance.

[0059] The sliding assembly consists of an arc-shaped slider 10, a semi-arc groove 22, and a vertical groove 21. The two arc-shaped sliders 10 are symmetrically fixed on either side of the limiting base plate 9, forming a sliding fit with the semi-arc groove 22 on the inner wall of the fixed outer cylinder 4. A second rectangular groove 32 and a third rectangular groove 33 are defined on the side of the arc-shaped slider 10. A connecting rod 34 extends through the third rectangular groove 33, its end connected to a limiting block 31. The limiting block 31 is connected to the inner wall of the second rectangular groove 32 via two first tension springs 30. When the limiting block 31 engages the third groove on the inner wall of the semi-arc groove 22, the arc-shaped slider 10 is braked. When the connecting rod 34 is pulled, the limiting block 31 disengages from the third groove, releasing the brake.

[0060] The brake assembly is located within the placement cavity 27 at the bottom of the limiting base plate 9 and includes a rotating shaft 29, a rotating plate 25, and an L-shaped operating hole 28. The rotating shaft 29 is laterally fixed to the inner walls of the placement cavity 27. The rotating plate 25 rotates around the rotating shaft 29, and an L-shaped operating hole 28 is provided at its bottom for easy operation. The rotation limit plate 5 is fixed to the outer wall of the terminal 3 and has second clearance holes 26 on both sides. In the initial state, the rotation limit plate 5 supports the end of the rotating plate 25, preventing it from rotating. When the rotation limit plate 5 rotates until the second clearance holes 26 align with the rotating plate 25, the rotating plate 25 can rotate around the rotating shaft 29 and extend from the placement cavity 27.

[0061] The working process of the device is as follows: when installing, the assembly of the integrated lightning arrester body 1 and the mounting top plate 6 is directly inserted into the fixed outer cylinder 4, the first clamping block 13 is automatically clamped into the first clamping groove 20, and the top rectangular block 12 locks the limit vertical plate 11 to complete the rapid fixation; when disassembling, the rotation limit plate 5 is rotated to align the second clearance hole 26 with the rotating plate 25, and the rotating plate 25 is rotated through the L-shaped operating hole 28 to release the brake of the arc-shaped slider 10, and the rotation limit bottom plate 9 is rotated to disengage the support block 8 from the limit vertical plate 11. The top block 23 pushes the slider 39 to release the lock of the top rectangular block 12, and finally realizes tool-free rapid disassembly. The entire process is realized through a mechanical linkage structure, without the need for bolt fastening or additional tools, which significantly improves the safety and efficiency of high-altitude operations.

[0062] The present application can be used in the field of lightning arresters, and can also be used in other fields applicable to the present application.

[0063] In another embodiment, reference Figure 1-11 , improved on the basis of Example 1: a quick-changing device for line lightning arresters, which is applied to the field of lightning arresters, has support blocks 8 fixed on both sides of the top of the limiting base plate 9, and two top blocks 23 are arranged in the middle. When the limiting base plate 9 is rotated to a specific angle, the support blocks 8 are disengaged from the support for the limiting vertical plate 11, and at the same time, the top blocks 23 move to the bottom of the top rectangular block 12. When the limiting base plate 9 is pushed upward, the top block 23 pushes the third block 40 out of the second slot 17 by pushing the slider 39, thereby releasing the lock of the limiting vertical plate 11 by the top rectangular block 12. At this time, the two limiting vertical plates 11 approach each other under the action of the second tension spring 41, so that the first block 13 is disengaged from the first slot 20, and the installed top plate 6 can be pulled out as a whole. A first clearance hole 24 is provided in the center of the limiting base plate 9 to provide a movable space for the terminal 3.

[0064] A quick-disassembly method for a line lightning arrester, based on the above-mentioned quick-replacement device for a line lightning arrester, comprises the following steps:

[0065] Installation steps: Insert the mounting top plate 6 into the fixed outer cylinder 4. When the first clamping block 13 contacts the inner wall of the fixed outer cylinder 4 and contracts and moves to the position of the first clamping groove 20, the second compression spring 19 pushes the first clamping block 13 into the first clamping groove 20. At the same time, the third clamping block 40 is clamped into the second clamping groove 17, locking the limit riser 11.

[0066] Disassembly steps: rotate the rotating limit plate 5 to align the second clearance hole 26 with the rotating plate 25), operate the L-shaped operating hole 28) to rotate the rotating plate 25), the rotating plate 25) disengages from the interfering connecting rod 34), the first tension spring 30) pulls the limit block 31) out of the third slot, and releases the brake of the arc-shaped slider 10); hold the rotating plate 25) and rotate the limit base plate 9) to disengage the support block 8) from the limit vertical plate 11), the top block 23) pushes the slider 39) to move upward, and pushes the slider 39) along the inclined surface of the trapezoidal hole 37) to push the third block 40) out of the second slot 17), the second tension spring 41) pulls the limit vertical plates 11) closer to each other, the first block 13) disengages from the first slot 20), and the top plate 6 is pulled out for installation.

[0067] However, as is well known to those skilled in the art, the working principle and wiring method of the arrester body 1 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0068] The drawings in this application are for illustrative purposes only. The sizes and shapes of the components shown are not intended to be limiting, but are merely for illustrative purposes. In actual implementation, the components may be appropriately configured and adjusted based on specific needs and actual conditions.

[0069] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field can replace or change the technical solution and inventive concept of the present invention within the technical scope disclosed by the present invention, and the replacement or change should be covered by the scope of protection of the present invention.

Claims

1. A quick replacement device for a line lightning arrester, characterized in that: include: A lightning arrester body (1) and a mounting frame (2), wherein a fixed outer cylinder (4) is fixedly embedded in the interior of the mounting frame (2), a mounting top plate (6) is fixedly mounted on the bottom of the lightning arrester body (1), and two symmetrically arranged limiting vertical plates (11) are slidably connected to the bottom of the mounting top plate (6), and the limiting vertical plates (11) are detachably connected to the fixed outer cylinder (4) via a fixing assembly; The inner wall of the fixed outer cylinder (4) is slidably connected to a limiting bottom plate (9) via a sliding assembly, and a support block (8) and a top block (23) are fixedly installed on the top of the limiting bottom plate (9), and the support block (8) is used to support the limiting vertical plate (11); The mounting top plate (6) is provided with a limiting assembly for locking the limiting vertical plate (11); The bottom of the limiting bottom plate (9) is provided with a brake assembly for controlling the sliding assembly. When installing, the installing top plate (6) is inserted into the fixed outer cylinder (4), the fixed assembly is automatically engaged, and the limiting assembly locks the limiting vertical plate (11); when disassembling, the brake assembly is operated to unlock, the limiting assembly releases the limiting vertical plate (11), and the installing top plate (6) can be pulled out.

2. The quick replacement device for line lightning arrester according to claim 1, characterized in that: The fixing assembly comprises a first rectangular groove (18) provided on one side of the limiting vertical plate (11); a first clamping block (13) is slidably penetrated inside the first rectangular groove (18); a second compression spring (19) is provided between one side of the first clamping block (13) and an inner wall of one side of the first rectangular groove (18); first clamping grooves (20) are provided on both inner walls of the fixed outer cylinder (4); the first clamping block (13) is engaged with the first clamping groove (20); during installation, the arc surface of the first clamping block (13) contacts the inner wall of the fixed outer cylinder (4) and contracts; when the first clamping block (13) moves to the position of the first clamping groove (20), the second compression spring (19) pushes the first clamping block (13) to be clamped into the first clamping groove (20).

3. The quick replacement device for line lightning arrester according to claim 1, characterized in that: The limiting assembly includes a first circular groove (14) provided at the bottom of the mounting top plate (6), the interior of the first circular groove (14) is slidably connected to a top push plate (7), the bottom of the top push plate (7) is fixedly installed with two symmetrical top rectangular blocks (12), a first compression spring (15) is provided between the top of the top push plate (7) and the top inner wall of the first circular groove (14), a fourth rectangular groove (35) is provided on one side of the top rectangular block (12), a third clamping block (40) is slidably passed through the interior of the fourth rectangular groove (35), a third compression spring (38) is provided between one end of the third clamping block (40) and the inner wall of one side of the fourth rectangular groove (35), a second clamping groove (17) is provided on one side of the limiting vertical plate (11), the third clamping block (40) is engaged with the second clamping groove (17), and when installed, the third clamping block (40) is clamped into the second clamping groove (17) to lock the position of the limiting vertical plate (11).

4. The quick replacement device for line lightning arrester according to claim 1, characterized in that: The sliding assembly comprises an arc-shaped slider (10) fixedly connected to both sides of the limiting base plate (9); the inner wall of the fixed outer cylinder (4) is provided with two symmetrical semi-arc-shaped grooves (22); the top of the semi-arc-shaped groove (22) is provided with a vertical groove (21); the arc-shaped slider (10) is slidably connected in the semi-arc-shaped groove (22); one side of the arc-shaped slider (10) is provided with a second rectangular groove (32); the other side is provided with a third rectangular groove (33); the third rectangular groove (33) is in contact with the semi-arc-shaped groove (21); The second rectangular groove (32) is connected, and a connecting rod (34) is slidably passed through the interior of the third rectangular groove (33), and one end of the connecting rod (34) is fixedly connected to a limiting block (31). A first tension spring (30) is provided between one side of the limiting block (31) and an inner wall of one side of the second rectangular groove (32). When disassembling, the limiting block (31) is clamped into the third clamping groove on the inner wall of the semi-arc groove (22) to brake the arc-shaped slider (10), and the brake is released after pulling the connecting rod (34).

5. The quick replacement device for line lightning arrester according to claim 1, characterized in that: The brake assembly includes a placement cavity (27) provided at the bottom of the limiting base plate (9), the placement cavity (27) is rotatably connected to a rotating shaft (29), the outer wall of the rotating shaft (29) is fixedly sleeved with a rotating plate (25), the bottom of the rotating plate (25) is provided with an L-shaped operating hole (28), one end of the rotating plate (25) is connected to the connecting rod (34), the bottom of the arrester body (1) is fixedly mounted with a terminal (3), the outer wall of the terminal (3) is fixedly sleeved with a rotating limiting plate (5), and both sides of the rotating limiting plate (5) are provided with a second clearance hole (26). When disassembling, the rotating limiting plate (5) is rotated to align the second clearance hole (26) with the rotating plate (25), and the L-shaped operating hole (28) is operated to rotate the rotating plate (25) to release the conflict with the connecting rod (34).

6. The quick replacement device for line lightning arrester according to claim 3, characterized in that: A fifth rectangular groove (36) is provided at the bottom of the top rectangular block (12), and the fifth rectangular groove (36) is connected to the fourth rectangular groove (35). A pushing slider (39) is slidably passed through the interior of the fifth rectangular groove (36). A trapezoidal hole (37) is provided at the bottom of the third clamping block (40), and the pushing slider (39) is slidably matched with the trapezoidal hole (37). A positioning limiting hole (16) is provided at the top of the limiting vertical plate (11), and the pushing slider (39) is engaged with the positioning limiting hole (16). When disassembling, the top block (23) pushes the pushing slider (39) to move upward, and the pushing slider (39) pushes the third clamping block (40) to disengage from the second clamping groove (17) along the inclined surface of the trapezoidal hole (37).

7. The quick replacement device for line lightning arrester according to claim 1, characterized in that: A first clearance hole (24) is provided inside the limiting bottom plate (9), and the first clearance hole (24) is clearance-matched with the terminal (3). A second tension spring (41) is provided between the two limiting vertical plates (11). When disassembling, the second tension spring (41) pulls the two limiting vertical plates (11) closer to each other, so that the first clamping block (13) is separated from the first clamping slot (20).

8. The quick replacement device for line lightning arrester according to claim 4, characterized in that: Two first tension springs (30) are provided in the second rectangular groove (32) on the side of the arc-shaped slider (10), and the limiting clamping block (31) is elastically connected to the inner wall of the second rectangular groove (32) through the first tension spring (30). In the braking state, the first tension spring (30) pulls the limiting clamping block (31) to be clamped into the third clamping groove.

9. A quick-disassembly method for a line lightning arrester, based on the quick-replacement device for a line lightning arrester according to any one of claims 1 to 8, characterized in that: The following steps are involved: Installation steps: insert the installation top plate (6) into the fixed outer cylinder (4), the first clamping block (13) contacts the inner wall of the fixed outer cylinder (4) and shrinks, and when it moves to the position of the first clamping groove (20), the second compression spring (19) pushes the first clamping block (13) to be clamped into the first clamping groove (20), and at the same time the third clamping block (40) is clamped into the second clamping groove (17), locking the limit vertical plate (11); Disassembly steps: rotate the rotation limit plate (5) to align the second clearance hole (26) with the rotation plate (25), operate the L-shaped operation hole (28) to rotate the rotation plate (25), the rotation plate (25) is disengaged from the contact connecting rod (34), the first tension spring (30) pulls the limit block (31) to disengage from the third slot, and releases the brake of the arc-shaped slider (10); hold the rotation plate (25) and rotate the limit bottom plate (9) to disengage the support block (8) from the limit vertical plate (11), the top block (23) pushes the push slider (39) to move upward, and the push slider (39) pushes the third block (40) along the inclined surface of the trapezoidal hole (37) to disengage from the second slot (17), the second tension spring (41) pulls the limit vertical plates (11) closer to each other, the first block (13) disengages from the first slot (20), and the top plate (6) is pulled out for installation.

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