Grounding device and use method thereof

Abstract

The invention relates to the technical field of electric power equipment, and provides a grounding device and a use method thereof, and an operating rod and a clamping jaw are utilized, so that an operator can perform grounding operation more safely during high-place operation; the switching grounding structure is convenient and fast, and can be easily fixed on the drop-type lightning arrester through the clamping jaw, thereby reducing the installation difficulty of the grounding pin caused by the hard cement ground in the traditional method. According to the grounding structure, the firm connection between the switching grounding device and the drop-type lightning arrester is ensured, the grounding standard can be reached through the grounding structure of the existing lightning arrester without additionally arranging a grounding pin, the difficulty that the grounding pin is difficult to be inserted into a cement ground and the like is solved, and the grounding efficiency is improved; when the switching grounding device is clamped with the drop-type lightning arrester, if the switching grounding device is still loosened, the clamping claw clamps the rotating ring and rotates the rotating ring, so that the rotating ring is ejected upwards under the pushing of the screw rod, and the clamping between the switching grounding device and the drop-type lightning arrester is firmer.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and in particular to a grounding device and a use method thereof. Background Art

[0002] When the transformer is powered off, the safety of the operators must be given priority. In order to avoid accidental power outages during the power outage, which may cause injuries to the operators, the transformer must be grounded during the power outage according to the "Safety Work Regulations for the Electric Power Industry". The following problems exist in actual operations:

[0003] 1. There are potential safety hazards in working at heights:

[0004] When installing the grounding wire, the operator needs to operate the high-voltage pile head of the transformer at a height. There is a risk of falling, especially when there is a lack of necessary safety protection facilities (such as safety belts or guardrails) on site, the safety of the operator cannot be effectively guaranteed. In addition, when operating high-voltage equipment, the operator needs to touch electrical components, which poses a risk of high-voltage electric shock, and the safety of the operation is difficult to guarantee.

[0005] 2. Difficulty in laying grounding wires:

[0006] The floors of many substations are hard cement floors, and the grounding pins cannot effectively penetrate the cement floors, resulting in poor grounding wire layout, which in turn affects the overall grounding effect.

[0007] 3. Instability of grounding effect:

[0008] Since it is difficult to effectively install grounding pins on cement floors, the grounding resistance value may be too high, which will affect the grounding effect of the system and reduce the protection capability of the equipment. In lightning weather conditions, the instability of the grounding effect may result in the inability to effectively discharge lightning current, increase the risk of equipment damage, and further threaten the life safety of operators.

[0009] Based on this, the present invention proposes a grounding device and a method of using the same to reduce the potential safety hazards of transformer grounding operations, improve the difficulty of laying grounding wires, and ensure the stability of the grounding effect. Summary of the invention

[0010] The purpose of the present invention is to solve the deficiencies of the prior art and provide a grounding device to reduce the potential safety hazards of transformer grounding operations, improve the difficulty of grounding wire layout, and ensure the stability of the grounding effect.

[0011] In order to achieve the above object, the present invention adopts the following technical solutions:

[0012] A grounding device, comprising: a transfer grounding device whose top abuts against an upper contact of a drop-type lightning arrester, and an operating rod for controlling the connection between the transfer grounding device and the drop-type lightning arrester; the bottom of the transfer grounding device is rotatably connected to a lower contact of the drop-type lightning arrester;

[0013] The transfer grounding device comprises: a support frame rotatably connected to the lower contact of the drop-type lightning arrester, a connector abutting against the upper contact of the drop-type lightning arrester, a copper tube connecting the support frame and the connector, a connecting bolt connecting the copper tube and the support frame, and a pull ring fixedly connected to one side of the connector; a gasket is provided between the copper tube and the support;

[0014] The top of the operating rod is provided with a clamping claw, and the bottom is provided with a pressing handle for controlling the opening and closing of the clamping claw.

[0015] Preferably, the operating rod includes: a clamping claw detachably connected to the pull ring, a telescopic tube fixedly connected to the bottom of the clamping claw, a handle fixedly connected to the bottom of the telescopic tube, a pressing handle arranged above the handle, and a telescopic tube connecting the pressing handle and the clamping claw.

[0016] Preferably, the clamping claw comprises: a right clamping block whose bottom is fixedly connected to the top of the telescopic tube, a left clamping block whose bottom is hinged to the right clamping block, and a hinge shaft connecting the right clamping block and the left clamping block; a receiving groove is provided on the top of the left clamping block, and the receiving groove accommodates the top of the right clamping block; the left clamping block and the clamping block are both arc-shaped; one end of the left clamping block is extended from the end, and a connecting shaft is provided on the extended section.

[0017] Preferably, the pressing handle comprises: a fixed block connected to the telescopic tube, a pressing block hinged to the fixed block, a rotating shaft connecting the fixed block and the pressing block, and a connecting block hinged to the pressing block; the upper end of the telescopic tube is hinged to the connecting shaft, and the lower end of the telescopic tube is hinged to the connecting block.

[0018] Preferably, the support frame is rotatably connected to the lower contact of the drop-out arrester via a rotating shaft.

[0019] Preferably, the transfer grounding device includes: a support frame rotatably connected to the lower contact of the drop-type lightning arrester, a connecting head abutting against the upper contact of the drop-type lightning arrester, a copper tube fixedly connected to the support frame, a connecting rod sleeved inside the copper tube, a screw rotatably connected to the bottom of the connecting rod, a rotating ring provided at the bottom of the screw, and a pull ring fixedly connected to one side of the connecting head; the connecting head is fixedly connected to the top of the connecting rod; the screw is sleeved on the support frame, the bottom of the screw passes through the support frame for a distance, the screw is rotatably connected to the support frame, and the connection position between the support frame and the screw is provided with an internal thread matching the external thread of the screw; the connecting rod can slide relative to the copper tube.

[0020] Preferably, a cylindrical cavity is provided at the bottom of the connecting rod, and the cylindrical cavity accommodates the top of the screw. The top of the screw is a smooth cylinder with an annular limit groove. A hole is provided on the connecting rod, and the hole is aligned with the limit groove. The screw and the connecting rod are connected by a positioning pin placed in the limit groove; the screw can rotate relative to the connecting rod.

[0021] Preferably, the outer side of the handle is wrapped with an anti-skid layer, and the anti-skid layer is provided with anti-skid patterns.

[0022] Another object of the present invention is to provide a grounding method using the above-mentioned grounding device, comprising the following steps:

[0023] S1. Remove the drop structure of the drop arrester; pull the operating rod to its longest position, use the clamping claw to clamp the hanging ring of the drop structure of the drop arrester, rotate the drop structure along the lower contact of the drop arrester to disengage its top from the upper contact of the drop arrester, and remove the drop structure;

[0024] S2. Install the transfer grounding device; use the clamping claw to clamp the pull ring, and rotate the support frame of the transfer grounding device to connect it with the lower contact of the drop-type lightning arrester. At this time, rotate the transfer grounding device along the lower contact of the drop-type lightning arrester so that the connecting head and the upper contact of the drop-type lightning arrester are against each other, and the installation of the transfer grounding device is completed;

[0025] S3. Remove the transfer grounding device and install the drop structure part of the drop type lightning arrester.

[0026] Another object of the present invention is to provide another grounding method using the above-mentioned grounding device, comprising the following steps:

[0027] S1. Remove the drop structure of the drop arrester; pull the operating rod to its longest position, use the clamping claw to clamp the hanging ring of the drop structure of the drop arrester, rotate the drop structure along the lower contact of the drop arrester to disengage its top from the upper contact of the drop arrester, and remove the drop structure;

[0028] S2. Install the transfer grounding device; use the clamping claw to clamp the pull ring, and rotate the support frame of the transfer grounding device to connect it with the lower contact of the drop-type lightning arrester. At this time, the transfer grounding device is rotated along the lower contact of the drop-type lightning arrester so that the connecting head and the upper contact of the drop-type lightning arrester are against each other. At this time, the clamping claw is used to clamp the rotating ring, and the rotating ring is rotated so that the rotating ring is pushed upward by the screw rod. The installation of the transfer grounding device is completed;

[0029] S3. Remove the transfer grounding device and install the drop structure part of the drop type lightning arrester.

[0030] The present invention discloses a grounding device having the following beneficial effects.

[0031] The present invention reduces potential safety hazards:

[0032] The grounding device of the present invention utilizes an operating rod and a clamping claw, so that operators can perform grounding operations more safely when working at heights, reducing the risk of safety accidents caused by falling and electric shock, and improving the safety of operators.

[0033] Simplify the grounding wire routing process:

[0034] The grounding transfer structure of the grounding device is convenient and fast, and can be easily fixed on the drop-type lightning arrester through the clamping claw, reducing the difficulty of grounding pin installation caused by the hard cement floor in the traditional method. Operators can lay out the grounding wire more efficiently, thereby improving work efficiency.

[0035] Ensure the stability of grounding effect:

[0036] The present invention ensures a firm connection between the transfer grounding device and the drop-type lightning arrester. The grounding standard can be achieved through the grounding structure of the existing lightning arrester without the need for additional grounding pins, thereby solving the difficulty of driving grounding pins into cement floors and the like, and improving the grounding efficiency. When the transfer grounding device is engaged with the drop-type lightning arrester, if the transfer grounding device is still loose and can pass through, the clamping claw clamps the rotating ring and rotates the rotating ring so that the rotating ring is pushed upward under the push of the screw, thereby making the transfer grounding device and the drop-type lightning arrester more firmly engaged.

[0037] Easy operation and maintenance:

[0038] The operating rod of the grounding device is designed as a retractable structure, which can adjust the length according to actual needs, making the operation more flexible. At the same time, the design of the clamping claw makes the connection and disassembly process simple and quick, reducing the labor intensity of the operators and facilitating subsequent maintenance and repair.

[0039] Enhanced portability and comfort for operators:

[0040] The anti-slip layer design wrapped around the outside of the handle helps operators get a better grip during operation, improves the stability and comfort of operation, and reduces accidents caused by hand slippage. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall structure of the grounding device of the present invention after installation.

[0042] Figure 2 It is a schematic diagram of the structure of the grounding device of the present invention.

[0043] Figure 3 It is a schematic diagram of the operating lever structure of the present invention.

[0044] Figure 4 This is a schematic diagram of Example 2 of the present invention.

[0045] Figure 5 This is another schematic diagram of Embodiment 2 of the present invention.

[0046] Figure 6 for Figure 5 Schematic diagram of the cross-section structure of section A-A.

[0047] In the attached drawings: 1. drop-type lightning arrester; 11. upper connecting frame; 12. upper contact; 13. lower connecting frame; 14. lower contact; 2. grounding device; 21. support frame; 22. connecting bolt; 23; 24. copper tube; 25. connector; 26. pull ring; 27. screw; 28. rotating ring; 29. ​​connecting rod; 291. limiting groove; 3. operating lever; 31. handle; 32. clamping claw; 321. right clamping block; 322. left clamping block; 323. hinge shaft; 324. connecting shaft; 33. pressing handle; 331. fixing block; 332. pressing block; 333. rotating shaft; 334. connecting block; 34. telescopic tube; 35. telescopic capillary; 4. positioning pin. DETAILED DESCRIPTION

[0048] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0049] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0050] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0051] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0052] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0053] Example 1

[0054] Please refer to Figure 1 This embodiment provides a grounding device, which includes: a transfer grounding device 2 whose top abuts against the upper contact 12 of the drop-type lightning arrester 1, an operating rod 3 for controlling the connection between the transfer grounding device 2 and the drop-type lightning arrester 1; the bottom of the transfer grounding device 2 is rotatably connected to the lower contact 14 of the drop-type lightning arrester 1; it should be understood that the drop-type lightning arrester 1 is a common device, the upper contact is fixed on the upper connecting frame 11, the lower contact 14 is fixed on the lower connecting frame 13, and the lower connecting frame 13 is reliably grounded. The grounding standard can be achieved through the grounding structure of the existing lightning arrester, solving the difficulty of not being able to drive the grounding pin into the cement floor, etc., and improving the grounding efficiency.

[0055] like Figure 1 and Figure 2 As shown, the transfer grounding device 2 includes: a support frame 21 rotatably connected to the lower contact 14 of the drop-type lightning arrester 1, a connector 25 abutting against the upper contact 12 of the drop-type lightning arrester 1, a copper tube 24 connecting the support frame 21 and the connector 25, a connecting bolt 22 connecting the copper tube 24 and the support frame 21, and a pull ring 26 fixedly connected to one side of the connector 25; a washer 23 is provided between the copper tube 24 and the bracket; the connecting bolt 22 and the washer 23 are used to fix the copper tube 24 and the support frame 21 to ensure the overcurrent effect; the support frame 21 is rotatably connected to the lower contact 14 of the drop-type lightning arrester 1 through the rotating shaft. The connection method of the support frame 21 and the lower contact 14 of the drop-type lightning arrester 1 is the same as the drop structure of the drop-type lightning arrester 1 and the lower contact 14 of the drop-type lightning arrester 1. The transfer grounding device 2 is made of copper as a whole, and its overall conformity with the grounding resistance standard ensures that it can effectively replace the drop part of the drop-type lightning arrester 1 and meet the operational grounding standard. The pull ring 26 can facilitate the installation and fixation of the device.

[0056] A clamping claw 32 is provided at the top of the operating rod 3, and a pressing handle 33 for controlling the opening and closing of the clamping claw 32 is provided at the bottom. The opening and closing of the clamping claw 32 fixed at the top of the operating rod 3 can be controlled by pressing the handle 33, so that the operating rod 3 can be used to install or remove the transfer grounding device 2.

[0057] like Figure 3 As shown, as preferably, in the present embodiment, the operating rod 3 comprises: a clamping claw 32 detachably connected to the pull ring 26, a telescopic tube 34 fixedly connected to the bottom of the clamping claw 32, a handle 31 fixedly connected to the bottom of the telescopic tube 34, a pressing handle 33 arranged above the handle 31, and a telescopic capillary 35 connecting the pressing handle 33 and the clamping claw 32. It should be understood that the telescopic tube 34 and the telescopic capillary 35 are common telescopic devices, and the telescopic tube 34 and the telescopic capillary 35 have the same telescopic stroke. The telescopic tube 34 is divided into an upper sleeve and a lower sleeve and a spring pin fixed in the upper sleeve. When the overlapping distance between the upper sleeve and the lower sleeve is the smallest, the top of the spring pin passes through the corresponding connecting hole commonly provided by the upper sleeve and the lower sleeve, and the spring pin locks the upper sleeve and the lower sleeve, and at this time the upper sleeve and the lower sleeve cannot slide relative to each other.

[0058] By using the operating rod 3 and the clamping claw 32, operators can perform grounding operations more safely when working at heights, reducing the risk of safety accidents caused by falling and electric shock, and improving the safety of operators.

[0059] The clamping claw 32 includes: a right clamping block 321 whose bottom is fixedly connected to the top of the telescopic tube 34, a left clamping block 322 whose bottom is hinged to the right clamping block 321, and a hinge shaft 323 connecting the right clamping block 321 and the left clamping block 322. The top of the left clamping block 322 is provided with a receiving groove, and the receiving groove accommodates the top of the right clamping block 321. The left clamping block 322 and the clamping block are both arc-shaped. The right clamping block 321 and the left clamping block 322 can rotate relative to each other along the hinge shaft 323. As the right clamping block 321 and the left clamping block 322 rotate relative to each other along the hinge shaft 323, the right clamping block 321 and the left clamping block 322 are transformed from an open space to a closed space. The top of the right clamping block 321 is inserted into the top of the left clamping block 322, and one end of the left clamping block 322 is extended, and a connecting shaft 324 is provided on the extended section.

[0060] The pressing handle 33 includes: a fixed block 331 connected to the telescopic tube 34, a pressing block 332 hinged to the fixed block 331, a rotating shaft 333 connecting the fixed block 331 and the pressing block 332, and a connecting block 334 hinged to the pressing block 332; the upper end of the telescopic tube 35 is hinged to the connecting shaft 324, and the lower end of the telescopic tube 35 is hinged to the connecting block 334. The pressing handle 33 drives the connecting block 334 to move downward by pressing the pressing block 332, thereby driving the telescopic tube 35 to move downward, thereby driving the clamping claw 32 to close.

[0061] Example 2

[0062] Based on Example 1, please refer to Figures 4 to 6The present embodiment provides a grounding device 2 including: a support frame 21 rotatably connected to the lower contact 14 of the drop-type lightning arrester 1, a connector 25 abutting against the upper contact 12 of the drop-type lightning arrester 1, a copper tube 24 fixedly connected to the support frame 21, a connecting rod 29 sleeved inside the copper tube 24, a screw 27 rotatably connected to the bottom of the connecting rod 29, a rotating ring 28 provided at the bottom of the screw 27, and a pull ring 26 fixedly connected to one side of the connector 25. It is worth noting that the thickness of the support frame 21 in the present embodiment is much greater than that of the support frame 21 in the embodiment 1; the connector 25 is fixedly connected to the top of the connecting rod 29, and can be welded or the like. Fixed; the screw 27 is sleeved with the support frame 21, the bottom of the screw 27 passes through the support frame 21 for a distance, the screw 27 is rotatably connected to the support frame 21, and the connection position between the support frame 21 and the screw 27 is provided with an internal thread matching the external thread of the screw 27; the connecting rod 29 can slide relative to the copper tube 24, and as the screw 27 rotates back and forth, the connecting rod 29 and the copper tube 24 slide back and forth, and since the connecting rod 29 is rotatably connected to the screw 27, the connecting rod 29 only needs to be slightly restricted and will not rotate with the screw 27, thereby preventing the connecting rod 29 from driving the connecting head 25 to rotate, thereby causing the rotating ring 28 to shift and making it inconvenient to remove the transfer grounding device 2.

[0063] Please refer to Figure 6 As a priority, in this embodiment, a cylindrical cavity is provided at the bottom of the connecting rod 29, and the cylindrical cavity accommodates the top of the screw 27. The top of the screw 27 is a smooth cylinder, and an annular limiting groove 291 is provided on the smooth cylinder. A hole is provided on the connecting rod 29, and the hole is aligned with the limiting groove 291. The screw 27 and the connecting rod 29 are connected by a positioning pin 4 placed in the limiting groove 291; the screw 27 can rotate relative to the connecting rod 29.

[0064] In order to improve the use effect, an anti-skid layer is wrapped on the outside of the handle 31, and the anti-skid layer is provided with anti-skid patterns, which helps the operator to get a better grip during operation, improves the stability and comfort of operation, and reduces accidents caused by hand slippage.

[0065] Example 3

[0066] Based on Example 1, please refer to Figures 1 to 3 This embodiment proposes a method for grounding using the device in Embodiment 1, comprising the following steps:

[0067] S1. Remove the drop structure of the drop arrester 1; pull the operating rod 3 to its longest position, use the clamping claw 32 to clamp the hanging ring of the drop structure of the drop arrester 1, rotate the drop structure along the lower contact 14 of the drop arrester 1 to disengage the top of the drop arrester 1 from the upper contact 12, and remove the drop structure;

[0068] S2, install the transfer grounding device 2; use the clamping claw 32 to clamp the pull ring 26, and rotate the support frame 21 of the transfer grounding device 2 to connect with the lower contact 14 of the drop-type lightning arrester 1. At this time, the transfer grounding device 2 is rotated along the lower contact 14 of the drop-type lightning arrester 1 so that the connecting head 25 is against the upper contact 12 of the drop-type lightning arrester 1, and the installation of the transfer grounding device 2 is completed;

[0069] S3. Remove the transfer grounding device 2 and install the drop structure part of the drop arrester 1.

[0070] Example 4

[0071] Based on Example 1-2, please refer to Figures 1 to 4 This embodiment proposes a method for grounding using the devices in Embodiment 1 and Embodiment 2, comprising the following steps:

[0072] S1. Remove the drop structure of the drop arrester 1; pull the operating rod 3 to its longest position, use the clamping claw 32 to clamp the hanging ring of the drop structure of the drop arrester 1, rotate the drop structure along the lower contact 14 of the drop arrester 1 to disengage the top of the drop arrester 1 from the upper contact 12, and remove the drop structure;

[0073] S2, install the transfer grounding device 2; use the clamping claw 32 to clamp the pull ring 26, and rotate the support frame 21 of the transfer grounding device 2 to connect with the lower contact 14 of the drop-type lightning arrester 1. At this time, the transfer grounding device 2 is rotated along the lower contact 14 of the drop-type lightning arrester 1 so that the connecting head 25 is against the upper contact 12 of the drop-type lightning arrester 1. At this time, the clamping claw 32 is used to clamp the rotating ring 28, and the rotating ring 28 is rotated so that the rotating ring 28 is pushed upward under the push of the screw 27. The installation of the transfer grounding device 2 is completed; it ensures that the transfer grounding device 2 and the The firm connection between the drop-type lightning arrester 1 does not require additional grounding pins, and can meet the grounding standard through the grounding structure of the existing lightning arrester, thereby solving the difficulty of driving grounding pins into cement floors and other places, and improving the grounding efficiency. When the transfer grounding device 2 is engaged with the drop-type lightning arrester 1, if the transfer grounding device 2 is still loose and can pass through, the clamping claw 32 clamps the rotating ring 28, rotates the rotating ring 28, and pushes the rotating ring 28 upward under the push of the screw 27, so that the transfer grounding device 2 and the drop-type lightning arrester 1 are more firmly engaged.

[0074] S3. Remove the transfer grounding device 2 and install the drop structure part of the drop arrester 1

[0075] The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. The substitution may be a substitution of a part of the structure, device, method step, or a complete technical solution. The equivalent replacement or change according to the technical solution and the inventive concept of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A grounding device, characterized in that: include: A transfer grounding device whose top end abuts against the contact on the drop-type lightning arrester, and an operating rod for controlling the connection between the transfer grounding device and the drop-type lightning arrester; The bottom of the transfer grounding device is rotatably connected to the lower contact of the drop-out arrester; The transfer grounding device comprises: a support frame rotatably connected to the lower contact of the drop-type lightning arrester, a connector abutting against the upper contact of the drop-type lightning arrester, a copper tube connecting the support frame and the connector, a connecting bolt connecting the copper tube and the support frame, and a pull ring fixedly connected to one side of the connector; a gasket is provided between the copper tube and the support; The top of the operating rod is provided with a clamping claw, and the bottom is provided with a pressing handle for controlling the opening and closing of the clamping claw.

2. The grounding device according to claim 1, characterized in that: The operating rod includes: a clamping claw detachably connected to the pull ring, a telescopic tube fixedly connected to the bottom of the clamping claw, a handle fixedly connected to the bottom of the telescopic tube, a pressing handle arranged above the handle, and a telescopic thin tube connecting the pressing handle and the clamping claw.

3. The grounding device according to claim 2, characterized in that: The clamping claw includes: a right clamping block whose bottom is fixedly connected to the top of the telescopic tube, a left clamping block whose bottom is hinged to the right clamping block, and a hinge shaft connecting the right clamping block and the left clamping block. The top of the left clamping block is provided with a receiving groove, and the receiving groove accommodates the top of the right clamping block. The left clamping block and the clamping block are both arc-shaped, and one end of the left clamping block is extended from the end, and a connecting shaft is provided on the extended section.

4. The grounding device according to claim 2, characterized in that: The pressing handle includes: a fixed block connected to the telescopic tube, a pressing block hinged to the fixed block, a rotating shaft connecting the fixed block and the pressing block, and a connecting block hinged to the pressing block; the upper end of the telescopic tube is hinged to the connecting shaft, and the lower end of the telescopic tube is hinged to the connecting block.

5. The grounding device according to claim 1, characterized in that: The support frame is rotatably connected to the lower contact of the drop-type lightning arrester via a rotating shaft.

6. The grounding device according to claim 1, characterized in that: The transfer grounding device includes: a support frame rotatably connected to the lower contact of the drop-type lightning arrester, a connecting head abutting against the upper contact of the drop-type lightning arrester, a copper tube fixedly connected to the support frame, a connecting rod sleeved inside the copper tube, a screw rotatably connected to the bottom of the connecting rod, a rotating ring provided at the bottom of the screw, and a pull ring fixedly connected to one side of the connecting head; the connecting head is fixedly connected to the top of the connecting rod; the screw is sleeved on the support frame, the bottom of the screw passes through the support frame for a distance, the screw is rotatably connected to the support frame, and the connection position between the support frame and the screw is provided with an internal thread matching the external thread of the screw; the connecting rod can slide relative to the copper tube.

7. The grounding device according to claim 6, characterized in that: A cylindrical cavity is provided at the bottom of the connecting rod, and the cylindrical cavity accommodates the top of the screw. The top of the screw is a smooth cylinder with an annular limit groove. A hole is provided on the connecting rod, and the hole is aligned with the limit groove. The screw and the connecting rod are connected by a positioning pin placed in the limit groove; the screw can rotate relative to the connecting rod.

8. The grounding device according to claim 1, characterized in that: The outer side of the handle is wrapped with an anti-skid layer, and the anti-skid layer is provided with anti-skid patterns.

9. A grounding method, using the grounding device according to any one of claims 1 to 8, characterized in that: The steps include: S1. Remove the drop structure of the drop arrester; pull the operating rod to its longest position, use the clamping claw to clamp the hanging ring of the drop structure of the drop arrester, rotate the drop structure along the lower contact of the drop arrester to disengage its top from the upper contact of the drop arrester, and remove the drop structure; S2. Install the grounding device; Use the clamping claw to clamp the pull ring, and rotate the support frame of the transfer grounding device to connect it with the lower contact of the drop-type lightning arrester. At this time, rotate the transfer grounding device along the lower contact of the drop-type lightning arrester so that the connecting head abuts against the upper contact of the drop-type lightning arrester, and the installation of the transfer grounding device is completed; S3. Remove the transfer grounding device and install the drop structure part of the drop type lightning arrester.

10. A grounding method, using the grounding device according to any one of claims 1 to 8, characterized in that: The steps include: S1. Remove the drop structure of the drop arrester; pull the operating rod to its longest position, use the clamping claw to clamp the hanging ring of the drop structure of the drop arrester, rotate the drop structure along the lower contact of the drop arrester to disengage its top from the upper contact of the drop arrester, and remove the drop structure; S2. Install the grounding device; Use the clamping claw to clamp the pull ring, and rotate the support frame of the transfer grounding device to connect it with the lower contact of the drop-type lightning arrester. At this time, rotate the transfer grounding device along the lower contact of the drop-type lightning arrester so that the connecting head and the upper contact of the drop-type lightning arrester are against each other. At this time, use the clamping claw to clamp the rotating ring, rotate the rotating ring, and push the rotating ring upward under the push of the screw. The installation of the transfer grounding device is completed; S3. Remove the transfer grounding device and install the drop structure part of the drop type lightning arrester.

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