Ground wire device and control method

Abstract

The invention relates to the technical field of power equipment maintenance, and particularly provides a ground wire device and a control method, the ground wire device comprises a first chuck, a second chuck and a ground conductor, the first chuck comprises two conductive clamping fingers; the two conductive clamping fingers are arranged at intervals along a first direction; the second chuck is provided with a screw pair avoiding part; the second clamping head and the first clamping head are sequentially arranged in the second direction. The second clamping head is movably connected with the first clamping head, and the second clamping head can move relative to the first clamping head in the second direction so as to be switched between a clamping position and a loosening position; the grounding conductor is electrically connected with the first chuck; the grounding conductor is used for grounding. The second clamping head and the first clamping head which are located at the clamping position are matched to clamp a target busbar, the target busbar is provided with a target screw pair, a part of the target screw pair is arranged on the screw pair avoiding part, and at least one conductive clamping finger abuts against the target screw pair, so that the target screw pair is electrically connected with the first clamping head; and the second chuck at the loosening position is separated from the target busbar. According to the invention, the operation efficiency and safety are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of power equipment maintenance technology, and in particular to grounding wire devices and control methods. Background Technology

[0002] A high-voltage metering cabinet is an electrical device in a high-voltage power distribution system specifically designed to measure high-voltage energy consumption. It introduces tens of kilovolts of high-voltage electricity into the cabinet via a busbar, allowing the internal components to calculate the user's electricity consumption. During installation and maintenance, the busbar is also used for grounding to ensure the safety of personnel.

[0003] In the past, power systems had small capacities and low current carrying capacity, so busbars were mostly integrated structures. With the upgrading of power system capacity and safety standards, busbars are now connected by bolts and nuts, and the remaining parts of the busbar are covered with an insulation layer. This means that during maintenance work, grounding devices can only be installed at the bolted connections of the busbar. The clamps of existing grounding devices are not compatible with the structure of the busbar and bolted connections, resulting in difficulties in connection, poor contact, low work efficiency, and poor safety. Summary of the Invention

[0004] The grounding wire device and control method provided in this invention at least solve the problems of low efficiency and poor safety in related clamp operations, and effectively improve work efficiency and safety.

[0005] In a first aspect, the present invention provides a grounding wire device, comprising a first clamp including two conductive fingers; the two conductive fingers are arranged sequentially at intervals along a first direction; a second clamp having a screw pair avoidance portion; the second clamp and the first clamp being arranged sequentially along a second direction; the second clamp being movably connected to the first clamp, and the second clamp being movable relative to the first clamp along the second direction to switch between a clamping position and a loosening position; and a grounding conductor electrically connected to the first clamp; the grounding conductor being used for grounding; wherein, in the clamping position, the second clamp and the first clamp cooperate to clamp a target busbar, the target busbar having a target screw pair, a portion of the target screw pair being disposed in the screw pair avoidance portion, at least one of the conductive fingers abutting against the target screw pair, thereby electrically connecting the target screw pair and the first clamp; in the loosening position, the second clamp is separated from the target busbar; the second direction is perpendicular to the first direction.

[0006] In one embodiment of the invention, at least one of the conductive clip fingers is movable along the first direction to adjust the clamping distance between the two conductive clip fingers.

[0007] In one embodiment of the present invention, the first chuck further includes: a first clamping seat, having a first threaded hole and a guide groove, wherein the axial direction of the first threaded hole is parallel to the second direction, and the length direction of the guide groove is parallel to the first direction; and a finger adjustment member, including a first adjustment shaft segment and a second adjustment shaft segment; the first adjustment shaft segment is disposed in the first threaded hole, and the first adjustment shaft segment is provided with a first transmission thread, the first transmission thread being threadedly connected to the first threaded hole; the second adjustment shaft segment is provided with a plurality of first meshing teeth, which are arranged sequentially along the circumference of the second adjustment shaft segment; one of the conductive fingers is fixedly connected to the first clamping seat, and the other conductive finger is provided with a guide block, which is movably disposed in the guide groove; the guide block is provided with a plurality of second meshing teeth, which are arranged sequentially along the second direction, and the second meshing teeth and the first meshing teeth mesh and drive each other.

[0008] In one embodiment of the present invention, the finger clamping adjustment member further includes a third adjustment shaft segment, the third adjustment shaft segment, the first adjustment shaft segment and the second adjustment shaft segment are arranged sequentially along the axial direction; the third adjustment shaft segment is at least partially disposed outside the first clamping seat, and a transmission groove is provided at the end of the third adjustment shaft segment that is axially away from the first adjustment shaft segment.

[0009] In one embodiment of the present invention, the conductive clip finger is provided with a reinforcing rib; along the second direction, the reinforcing rib is provided on the side of the conductive clip finger away from the second clamp; along the first direction, the reinforcing rib is provided on the side of the conductive clip finger close to the other conductive clip finger.

[0010] In one embodiment of the present invention, the second chuck includes: a second clamping seat abutting against a first clamping seat of the first chuck; the second clamping seat is provided with a threaded clearance portion; and a chuck adjusting member, including a fourth adjusting shaft section, a fifth adjusting shaft section, and an insulating gripping section; the fourth adjusting shaft section, the fifth adjusting shaft section, and the insulating gripping section are arranged sequentially along the axial direction; the fourth adjusting shaft section is rotatably connected to the second clamping seat, and the fifth adjusting shaft section is provided with a second transmission thread; the first clamping seat is provided with a second threaded hole, the fifth adjusting shaft section is disposed in the second threaded hole, and the second transmission thread and the second threaded hole are threadedly connected; the first chuck further includes an insulating handle; the insulating handle is hollow along the axial direction, the insulating handle is sleeved outside the insulating gripping section, and the axial dimension of the insulating handle is smaller than the axial dimension of the insulating gripping section; one axial end of the insulating handle is connected to the first clamping seat.

[0011] In one embodiment of the present invention, the second clamping seat is further provided with a first mounting hole, the wall surface of the first mounting hole is provided with an adjusting threaded through hole, an adjusting stud is provided in the adjusting threaded through hole, and the adjusting stud is threadedly connected to the adjusting threaded through hole; the fourth adjusting shaft segment is rotatably disposed in the first mounting hole, the side wall of the fourth adjusting shaft segment is provided with an adjusting ring groove, and the adjusting stud abuts against the groove wall surface of the adjusting ring groove.

[0012] In one embodiment of the present invention, the first clamping seat is provided with a first guide portion, and the second clamping seat is provided with a second guide portion; along the second direction, the second guide portion is slidably connected to the first guide portion.

[0013] In one embodiment of the present invention, the insulating handle is provided with an insulating flange, which surrounds the insulating handle along its circumference.

[0014] In one embodiment of the present invention, the insulating eaves include a first insulating section, a second insulating section, and a third insulating section; the first insulating section, the second insulating section, and the third insulating section are arranged sequentially along the axial direction of the insulating handle; the radial dimension of the first insulating section is smaller than the radial dimension of the third insulating section; the radial dimension of the second insulating section gradually decreases along the arrangement direction of the third insulating section and the first insulating section.

[0015] In one embodiment of the present invention, the first clamping seat of the first clamp is provided with a third threaded hole; the grounding conductor includes a grounding terminal, a grounding bolt and a grounding wire; the grounding terminal includes a contact portion and a mounting portion, the contact portion abuts against the first clamping seat, and the contact portion is provided with a second mounting hole; the grounding bolt passes through the second mounting hole and the third threaded hole and is threadedly connected to the third threaded hole; the mounting portion is provided with a third mounting hole, and one end of the grounding wire is disposed in the third mounting hole.

[0016] Secondly, the present invention also provides a grounding wire device control method, applied to the grounding wire device described in any one of the above claims, comprising the steps of: grounding a grounding conductor; wherein the grounding conductor is electrically connected to a first clamp, the first clamp including two conductive fingers; the two conductive fingers are arranged sequentially at intervals along a first direction; a second clamp is movably connected to the first clamp; the second clamp and the first clamp are arranged sequentially along a second direction; the second clamp is provided with a screw pair avoidance portion; switching the second clamp to a loose position; wherein the second clamp in the loose position is separated from the target busbar, the target busbar being provided with a target screw pair; the second direction is perpendicular to the first direction; placing the first clamp on the target busbar, at least one of the conductive fingers abutting against the target screw pair, so that the target screw pair and the first clamp are electrically connected; controlling the second clamp to move along the second direction, switching from the loose position to a clamping position, the second clamp in the clamping position and the first clamp cooperating to clamp the target busbar, a portion of the target screw pair being provided in the screw pair avoidance portion.

[0017] Compared with the prior art, the above-described technical solution of the present invention has the following advantages:

[0018] The grounding wire device of this invention features conductive fingers on the first clamp and a screw pair avoidance part on the second clamp, effectively adapting to target busbars with target screw pairs. During grounding operations, the gap between the two conductive fingers can be used to avoid the target screw pairs, preventing them from interfering with the connection between the device and the target busbar. Especially when facing a target busbar with multiple target screw pairs, the elongated structure of the conductive fingers can be used to extend between the target screw pairs to clamp the target busbar. This effectively improves the success rate of connection and the efficiency of grounding operations, shortening the grounding operation time. In addition to avoiding and clamping the target busbar, the conductive fingers can also be used to abut against the target screw pairs, increasing the electrical connection contact area of ​​the device, achieving a more reliable electrical connection, ensuring stability after fixing, and improving the safety of workers. Meanwhile, the threaded portion of the second chuck can accommodate the target threaded portion, allowing the second chuck to fully contact the target busbar and cooperate with the first chuck to clamp and fix the target busbar, ensuring reliable connection and avoiding problems such as accidental detachment. This further improves the success rate of connection and the efficiency of grounding operations, shortens the grounding operation time, and makes the grounding operation efficient and safe. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1This is a schematic diagram of the target busbar structure.

[0021] Figure 2 This is one of the structural schematic diagrams of the grounding wire device in a preferred embodiment of the present invention.

[0022] Figure 3 This is the second schematic diagram of the grounding wire device in a preferred embodiment of the present invention.

[0023] Figure 4 This is one of the cross-sectional structural schematic diagrams of the first clamp in a preferred embodiment of the present invention.

[0024] Figure 5 This is the second cross-sectional view of the first clamp in a preferred embodiment of the present invention.

[0025] Figure 6 This is the third schematic diagram of the grounding wire device in a preferred embodiment of the present invention.

[0026] Figure 7 This is a cross-sectional view of the grounding wire device in a preferred embodiment of the present invention.

[0027] Figure 8 This is a cross-sectional view of the insulating eaves in a preferred embodiment of the present invention.

[0028] Figure 9 This is a flowchart illustrating the grounding wire device control method in a preferred embodiment of the present invention.

[0029] Figure 10 This is a time comparison chart of different devices used for grounding operations.

[0030] The above-mentioned figures include the following reference numerals: D1, first direction; D2, second direction; D3, third direction; 01, target busbar; 011, insulating layer; 02, target screw pair; 10, first chuck; 11, conductive finger; 111, guide block; 1111, second meshing tooth; 112, reinforcing rib; 12, first clamping seat; 121, first threaded hole; 122, guide groove; 123, second threaded hole; 124, first guide part; 125, third threaded hole; 13, finger adjustment component; 131, first adjusting shaft section; 1311, first transmission thread; 132, second adjusting shaft section; 1321, first meshing tooth; 133, third adjusting shaft section; 1331, transmission groove; 14, insulating handle; 1 5. Insulating eaves; 151. First insulating section; 152. Second insulating section; 153. Third insulating section; 20. Second chuck; 21. Fixed chuck finger; 211. Screw pair clearance part; 22. Second clamping seat; 221. First mounting hole; 222. Adjusting thread through hole; 223. Adjusting stud; 224. Second guide part; 23. Chuck adjusting part; 231. Fourth adjusting shaft section; 2311. Adjusting ring groove; 232. Fifth adjusting shaft section; 2321. Second transmission thread; 233. Insulating gripping section; 30. Grounding conductor; 31. Grounding terminal; 311. Contact part; 3111. Second mounting hole; 312. Mounting part; 3121. Third mounting hole; 32. Grounding bolt; 33. Grounding wire. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0034] Reference Figure 2 and Figure 3 As shown, an embodiment of the present invention provides a grounding wire device, including a first clamp 10, a second clamp 20, and a grounding conductor 30.

[0035] The first chuck 10 and the second chuck 20 cooperate to clamp the target busbar 01. The target busbar 01 is the busbar in the high-voltage metering cabinet, which includes two copper busbars that are partially stacked. The two copper busbars are connected by one or more target screw pairs 02, and the portion outside the copper busbar stack is covered with an insulating layer 011. The target screw pair 02 includes a bolt, a nut, and a washer.

[0036] For example, refer to Figure 1 As shown, two target screw pairs 02 are provided on the target busbar 01, and the two target screw pairs 02 are arranged alternately along the length direction of the target busbar 01.

[0037] The first clamp 10 includes two conductive fingers 11, each of which is elongated. The two conductive fingers 11 are arranged alternately along a first direction D1. Preferably, the length direction of the conductive fingers 11 is parallel to a third direction D3, the first direction D1 and the third direction D3 are perpendicular, and the second direction D2 is perpendicular to both the first direction D1 and the third direction D3.

[0038] The conductive chuck is used to avoid the target screw assembly 02, specifically, to avoid the nut in the target screw assembly 02. The nut is mounted on the bolt, with the head of the bolt located on one side in the thickness direction of the target female busbar 01 and its tail located on the other side, and threadedly connected to the nut.

[0039] In related technologies, conventional clamps often require adjustment of the clamping position to clamp bolts and nuts on the target busbar 01. However, adjusting the position often requires damaging the insulation layer 011 of the target busbar 01. This is time-consuming and labor-intensive, and even if the insulation layer 011 is damaged, it is often difficult to guarantee the clamping and fixing effect, resulting in poor connection stability and low success rate.

[0040] In this embodiment of the invention, by providing two conductive fingers 11 to the first clamp 10, during grounding operations, the gap between the two conductive fingers 11 can be used to avoid the target screw pair 02, preventing the target screw pair 02 from affecting the connection between the device and the target busbar 01. Especially when the target busbar 01 has multiple screw pairs, the elongated structure of the conductive fingers 11 can be used to extend between the target screw pairs 02 to clamp the target busbar 01. This effectively improves the success rate of connection and the efficiency of grounding operations, and shortens the grounding operation time. On the other hand, in addition to avoiding the target screw pair 02 and clamping the target busbar 01, the conductive fingers 11 can also be used to abut against the target screw pair 02, increasing the electrical connection contact area of ​​the device, achieving a more reliable electrical connection, ensuring the stability after fixing, and improving the safety of workers.

[0041] Of course, in some other embodiments, the number of conductive fingers 11 in the first chuck 10 can also be adjusted. For example, three, four, five, or other conductive fingers 11 can be set. Preferably, only two are set, which reduces the complexity of the device while effectively avoiding the target screw pair 02 and clamping the target busbar 01.

[0042] The grounding conductor 30 and the first clamp 10 are electrically connected. Of course, the grounding conductor 30 and the first clamp 10 themselves are not energized; they only conduct electricity. The grounding conductor 30 is used for grounding. When the first clamp 10 contacts the target busbar 01, current flows through the first clamp 10 and the grounding conductor 30, achieving grounding of the target busbar 01. This avoids the problem of workers accidentally being electrocuted due to the insulation layer 011 being broken down by high voltage caused by aging or cracking, ensuring safety and reliability.

[0043] The second chuck 20 is used to cooperate with the first chuck 10 to clamp the target busbar 01. Specifically, the second chuck 20 and the first chuck 10 are arranged sequentially along the second direction D2. The second chuck 20 and the first chuck 10 are movably connected, and the second chuck 20 is movable relative to the first chuck 10 along the second direction D2. The movable connection can be a threaded connection, a sliding connection, etc.

[0044] During the movement of the second chuck 20 relative to the first chuck 10 along the second direction D2, there are two key positions: the clamping position and the releasing position. The clamping distance between the two chucks is adjustable, and its range of motion can be from the clamping position to the releasing position, or it can be greater.

[0045] During grounding operations, the second direction D2 is set to be parallel to the thickness direction of the target busbar 01, and the second clamp 20 is switched between the clamping and releasing positions so that the two clamps clamp the target busbar 01 in the middle, achieving fixed and electrical grounding.

[0046] The second clamp 20, in the released position, is separated from the target busbar 01. For example, in the released position, the sum of the thickness of the target busbar 01 and the thickness of the insulation layer 011 is less than the clamping distance between the second clamp 20 and the first clamp 10, so that the operator can place the target busbar 01 between the two clamps and subsequently clamp it for grounding.

[0047] The second chuck 20 is provided with a screw pair clearance part 211, which is used to avoid the bolt head of the target screw pair 02. For example, the screw pair clearance part 211 can be configured as a clearance groove or a clearance hole.

[0048] In this way, the second chuck 20 can accommodate the bolt head of the target bolt pair 02 through the bolt pair avoidance part 211, so that the second chuck 20 can fully contact the target busbar 01 and cooperate with the first chuck 10 to clamp and fix the target busbar 01, ensuring reliable connection and avoiding problems such as accidental detachment. At the same time, it can also effectively improve the success rate of connection and the efficiency of grounding operation, and shorten the grounding operation time.

[0049] Of course, in some other embodiments, the screw pair avoidance part 211 can be used to avoid the nut of the target screw pair 02, and the conductive clamp finger 11 can be used to clamp the bolt head of the target screw pair 02.

[0050] Preferably, in this embodiment of the invention, the second chuck 20 includes two fixed clamping fingers 21, which are arranged sequentially at intervals along the second direction D2, and the clamping gap between the two fixed clamping fingers 21 is the screw pair avoidance part 211.

[0051] The second clamp 20 and the first clamp 10, located in the clamping position, cooperate to clamp the target busbar 01. Specifically, a portion of the target screw assembly 02 is disposed in the screw assembly clearance portion 211, and at least one conductive clamp finger 11 abuts against the target screw assembly 02, making the target screw assembly 02 electrically connected to the first clamp 10. In this way, the target screw assembly 02 is effectively prevented from affecting the clamping connection between the two clamps and the target busbar 01, making the grounding operation efficient and safe.

[0052] For example, taking a target busbar 01 with a width of 5cm and multiple M10 bolts as an example, select a grounding wire device of appropriate size. First, ground the grounding conductor 30. Then, switch the position of the second clamp 20 to the loose position. Next, hang the first clamp 10 on the target busbar 01, so that one of the conductive fingers 11 of the first clamp 10 passes through the target screw pair 02 and abuts against the target screw pair 02. After completing the initial fixation of the first clamp 10, control the second clamp 20 to switch to the clamping position, so that the bolt head of the target screw pair 02 is placed in the screw pair avoidance part 211 of the second clamp 20, and the second clamp 20 and the first clamp 10 cooperate to firmly clamp the target busbar 01 to achieve grounding.

[0053] The grounding device of this invention features conductive fingers 11 on the first clamp 10 and screw pair avoidance parts 211 on the second clamp 20, effectively adapting to a target busbar 01 with target screw pairs 02. During grounding operations, the gap between the two conductive fingers 11 can be used to avoid the target screw pairs 02, preventing them from affecting the connection between the device and the target busbar 01. Especially when multiple target screw pairs 02 are present on the target busbar 01, the elongated structure of the conductive fingers 11 can be used to extend between the target screw pairs 02 to clamp the target busbar 01. This effectively improves the success rate of connection and the efficiency of grounding operations, shortening the grounding operation time. In addition to avoiding the target screw pairs 02 and clamping the target busbar 01, the conductive fingers 11 can also be used to abut against the target screw pairs 02, increasing the electrical connection contact area of ​​the device, achieving a more reliable electrical connection, ensuring stability after fixing, and improving the safety of workers. Meanwhile, the screw pair avoidance part 211 of the second chuck 20 can be used to accommodate the target screw pair 02, so that the second chuck 20 can fully contact the target busbar 01 and cooperate with the first chuck 10 to clamp and fix the target busbar 01, ensuring reliable connection and avoiding problems such as accidental detachment, further improving the success rate of connection and the efficiency of grounding operation, shortening the grounding operation time, and making the grounding operation efficient and safe.

[0054] Reference Figure 4 and Figure 5 As shown, in some embodiments of the grounding wire device of the present invention, at least one conductive clip 11 is movable along a first direction D1 to adjust the clamping distance between the two conductive clips 11.

[0055] Different high-voltage metering cabinets contain different models of target busbars 01, and correspondingly, the models of target screw pairs 02 on the target busbars 01 are also different. In this embodiment, the clamping distance between the conductive clip fingers 11 is set to be adjustable, which can effectively increase the adaptability of the device to different models of target busbars 01 and achieve compatibility with different models.

[0056] In addition, during grounding operations, the adjustable clamping distance of the conductive clip 11 can be utilized to clamp the target screw pair 02, thereby further increasing the electrical connection contact area of ​​the device, achieving a more reliable electrical connection, enhancing the stability of the device after fixing, and improving the safety of workers.

[0057] For example, the movement of the conductive gripper 11 can be achieved through structures such as worm gears, gears, racks, etc. Both conductive grippers 11 can be made adjustable; for example, by using a threaded transmission structure, the two conductive grippers 11 can be moved synchronously closer or further apart. Preferably, in this embodiment of the invention, one conductive gripper 11 is fixed, while the other conductive gripper 11 is movable.

[0058] Furthermore, refer to Figure 4 and Figure 5 As shown, in some embodiments of the grounding wire device of the present invention, the first clamp 10 further includes a first clamping seat 12 and a clamping finger adjustment member 13.

[0059] The first clamping seat 12 is the main body of the first clamp 10 and is connected to the grounding conductor 30. One of the conductive fingers 11 is fixedly connected to the first clamping seat 12, preferably, the two are integrally formed.

[0060] The first clamping seat 12 is provided with a first threaded hole 121 and a guide groove 122. The first threaded hole 121 is used to install the clamping finger adjustment component 13. The hole wall of the first threaded hole 121 is provided with threads so as to cooperate with the clamping finger adjustment component 13 to realize the transmission for moving the other conductive clamping finger 11. The axial direction of the first threaded hole 121 is parallel to the second direction D2. Thus, during operation, the conductive clamping finger 11 can be moved and controlled from above in the thickness direction of the target busbar 01, which facilitates operation and improves operation efficiency.

[0061] The guide groove 122 is used to set the movable conductive gripper 11, which is provided with a guide block 111, which is movably set in the guide groove 122. The length direction of the guide groove 122 is parallel to the first direction D1, so as to provide guidance for the movement of the conductive gripper 11 and increase the structural stability of the device.

[0062] The finger-clamping adjustment member 13 includes a first adjustment shaft section 131 and a second adjustment shaft section 132. The first adjustment shaft section 131 is disposed in a first threaded hole 121 and is provided with a first transmission thread 1311, which is threadedly connected to the first threaded hole 121. Thus, when the finger-clamping adjustment member 13 rotates, the threaded engagement between the first transmission thread 1311 and the first threaded hole 121 causes the finger-clamping adjustment member 13 to rotate and move linearly.

[0063] The second adjusting shaft section 132 is provided with a plurality of first meshing teeth 1321, which are arranged sequentially along the circumference of the second adjusting shaft section 132. The conductive clip 11 provided in the guide groove 122 is also provided with a plurality of second meshing teeth 1111, which are arranged sequentially along the second direction D2, and the second meshing teeth 1111 and the first meshing teeth 1321 mesh and drive each other.

[0064] Preferably, the first clamping seat 12 is provided with a receiving hole, which is divided into two sections. The first section is provided with a thread, namely a first threaded hole 121, for accommodating the first adjusting shaft section 131 of the finger clamping adjustment member 13. The second section is used to accommodate the second adjusting shaft section 132, so that the second adjusting shaft section 132 can rotate and move axially therein. The wall of the second section is connected to the guide groove 122, so that the second meshing tooth 1111 of the second adjusting shaft section 132 can mesh with the first meshing tooth 1321 on the guide block 111 to achieve transmission.

[0065] When the finger-adjusting member 13 rotates, the multiple first meshing teeth 1321 of the second adjusting shaft section 132 act like a gear. The multiple second meshing teeth 1111 on the conductive finger 11 act like a rack. In this way, the rotation of the finger-adjusting member 13 can be converted into a linear movement of the conductive finger 11 along the first direction D1, so that the two conductive fingers 11 are relatively closer or relatively farther apart, thereby realizing the adjustment of their clamping distance.

[0066] In this way, workers can use a single device to adapt to different models of target busbars 01, and only need to rotate the clamp adjustment component 13 to adjust the distance between the two conductive clamp fingers 11, so that the conductive clamp fingers 11 clamp or loosen the target screw pair 02. This effectively improves work efficiency and the success rate of grounding operations, as well as the stability and reliability of grounding, ensuring the safety of workers.

[0067] Furthermore, refer to Figure 5 and Figure 6 As shown, in some embodiments of the grounding wire device of the present invention, the clamping finger adjusting member 13 further includes a third adjusting shaft section 133, wherein the third adjusting shaft section 133, the first adjusting shaft section 131, and the second adjusting shaft section 132 are arranged sequentially along the axial direction. The third adjusting shaft section 133 is at least partially disposed outside the first clamping seat 12, and a transmission groove 1331 is provided at the end of the third adjusting shaft section 133 that is axially away from the first adjusting shaft section 131.

[0068] The transmission groove 1331 is used for workers to transmit power using tools. For example, the transmission groove 1331 can be set as an "I"-shaped groove or a "+"-shaped groove. Alternatively, it can be set as a triangular groove, a hexagonal groove, etc. In this way, workers can rotate the finger-clamping adjustment component 13 using a screwdriver, which is labor-saving and efficient. The transmission structure of the finger-clamping adjustment component 13 prevents interference between the screwdriver and internal cabinet components, effectively improving the safety and efficiency of grounding operations.

[0069] Reference Figure 6 As shown, in some embodiments of the grounding wire device of the present invention, the conductive clip 11 is provided with a reinforcing rib 112. Along the second direction D2, the reinforcing rib 112 is provided on the side of the conductive clip 11 away from the second clamp 20. Along the first direction D1, the reinforcing rib 112 is provided on the side of the conductive clip 11 close to another conductive clip 11.

[0070] To extend between the target screw pairs 02, the elongated conductive clips 11 are typically relatively thin. By providing reinforcing ribs 112 to the conductive clips 11, on the one hand, their structural strength can be effectively increased, extending the service life of the device. On the other hand, it can effectively increase their contact area with the target busbar 01 and the target screw pairs 02, effectively enhancing the stability and reliability of grounding and ensuring the safety of personnel.

[0071] Reference Figure 2 , Figure 6 and Figure 7 As shown, in some embodiments of the grounding wire device of the present invention, the second clamp 20 includes a second clamping seat 22 and a clamp adjusting member 23.

[0072] The second clamping seat 22 abuts against the first clamping seat 12 of the first chuck 10, so that the two chucks can move relative to each other to switch positions, thereby clamping or releasing the target busbar 01. The second clamping seat 22 is provided with a screw pair clearance part 211 to accommodate the bolt head of the target screw pair 02.

[0073] The chuck adjustment component 23 includes a fourth adjustment shaft section 231, a fifth adjustment shaft section 232, and an insulating grip section 233, which are arranged sequentially along the axial direction.

[0074] Preferably, the chuck adjustment member 23 is a split structure, with the fourth adjustment shaft section 231 and the fifth adjustment shaft section 232 integrally formed, and the insulated grip section 233 detachably connected to it. For example, the insulated grip section 233 is a tubular structure made of insulating material, which is sleeved on the fifth shaft section for workers to grip and rotate, preventing accidental electric shock during operation.

[0075] The fourth adjusting shaft section 231 is rotatably connected to the second clamping seat 22. The first clamping seat 12 is provided with a second threaded hole 123. The fifth adjusting shaft section 232 is provided with a second threaded hole 123. The fifth adjusting shaft section 232 is provided with a second transmission thread 2321. The second transmission thread 2321 and the second threaded hole 123 are threadedly connected.

[0076] Thus, when rotating the insulating grip section 233, the second clamping seat 22 can move relative to the first clamping seat 12 by means of the threaded transmission between the second transmission thread 2321 and the second threaded hole 123, thereby achieving position switching.

[0077] The first chuck 10 also includes an insulating handle 14. The insulating handle 14 is hollow along the axial direction and is sleeved outside the insulating grip section 233. The axial dimension of the insulating handle 14 is smaller than the axial dimension of the insulating grip section 233. One axial end of the insulating handle 14 is connected to the first clamping seat 12.

[0078] In this way, when performing the operation, the worker can hold the insulating handle 14 with one hand, and after fixing the conductive clamp finger 11, use the other hand to rotate the insulating grip section 233, which drives the fifth adjusting shaft section 232 and the fourth adjusting shaft section 231 to rotate. Then, under the threaded transmission of the second transmission thread 2321 and the second threaded hole 123, the second clamping seat 22 is moved relative to the first clamping seat 12, realizing the position switching. This allows the first chuck 10 and the second chuck 20 to cooperate in clamping or releasing the target busbar 01, thus realizing the grounding operation. The overall structure is simple, safe and reliable, which is conducive to the efficient and reliable realization of grounding operations.

[0079] Furthermore, refer to Figure 7 As shown, in some embodiments of the grounding wire device of the present invention, the second clamping seat 22 is further provided with a first mounting hole 221. The wall surface of the first mounting hole 221 is provided with an adjusting threaded through hole 222, and an adjusting stud 223 is provided in the adjusting threaded through hole 222. The adjusting stud 223 and the adjusting threaded through hole 222 are threadedly connected. The fourth adjusting shaft section 231 is rotatably disposed in the first mounting hole 221. The shaft side wall of the fourth adjusting shaft section 231 is provided with an adjusting ring groove 2311, and the adjusting stud 223 abuts against the groove wall surface of the adjusting ring groove 2311.

[0080] Thus, under normal circumstances, the adjusting stud 223 is positioned within the adjusting threaded through hole 222, achieving self-locking through the thread to prevent the fourth adjusting shaft section 231 from disengaging from the first mounting hole 221, while allowing the fourth adjusting shaft section 231 to rotate within the first mounting hole 221. This, in conjunction with the other components, enables the switching of the positions of the two chucks. When maintenance is required, simply removing the adjusting stud 223 allows the fourth adjusting shaft section 231 to be removed from the first mounting through hole for maintenance. The overall structure is simple, facilitating manufacturing and reducing production costs.

[0081] Furthermore, refer to Figure 6 As shown, in some embodiments of the grounding wire device of the present invention, the first clamping seat 12 is provided with a first guide portion 124, and the second clamping seat 22 is provided with a second guide portion 224. Along the second direction D2, the second guide portion 224 is slidably connected to the first guide portion 124.

[0082] For example, the first guide portion 124 is configured as a sliding groove, and the first clamping seat 12 is provided with two sliding grooves along the first direction D1, with the two sliding grooves respectively located on both sides of the second clamping seat 22. The second guide portion 224 is configured as a slider, along the first direction D1, with the sliders located on both sides of the second clamping seat 22. Each slider is disposed in a corresponding sliding groove, and the slider can slide relative to the sliding groove along the second direction D2 to provide guidance for switching the positions of the two clamps and increase the stability of the device.

[0083] Furthermore, refer to Figure 7 As shown, in some embodiments of the grounding wire device of the present invention, the insulating handle 14 is provided with an insulating eave 15, which surrounds the insulating handle 14 along its circumference. By providing the insulating eave 15, the creepage distance can be effectively increased, reducing the possibility of accidental electric shock to workers and improving safety.

[0084] Furthermore, refer to Figure 8 As shown, in some embodiments of the grounding wire device of the present invention, the insulating canopy 15 includes a first insulating section 151, a second insulating section 152, and a third insulating section 153. The first insulating section 151, the second insulating section 152, and the third insulating section 153 are arranged sequentially along the axial direction of the insulating handle 14. The radial dimension of the first insulating section 151 is smaller than the radial dimension of the third insulating section 153. Along the arrangement direction of the third insulating section 153 and the first insulating section 151, the radial dimension of the second insulating section 152 gradually decreases.

[0085] Although the target busbar 01 is usually located inside the high-voltage metering cabinet, some high-voltage metering cabinets are located outdoors. In rainy weather, rainwater, dust, and other substances inevitably fall on the device. These objects form a continuous conductive film on the surface of the device, which is equivalent to short-circuiting this creepage distance and reducing the device's insulation withstand capability.

[0086] By providing a second insulating section 152 with a gradually changing size to the insulating eaves 15, the insulating eaves 15 can form an umbrella-like structure, allowing rainwater to slide quickly down the surface of the insulating eaves 15, shortening its residence time on the insulating surface, and thus ensuring the safety of workers.

[0087] In addition, the transition connection between the first insulation section 151 and the third insulation section 153 via the second insulation section 152 can also reduce the edge electric field strength, prevent the formation of an electric field concentration area at the edge of the insulating eaves 15 and thus avoid local corona discharge, improve the overall insulation performance, and thereby ensure the safety of the staff.

[0088] Reference Figure 7 As shown, in some embodiments of the grounding device of the present invention, the first clamping seat 12 of the first clamp 10 is provided with a third threaded hole 125. The grounding conductor 30 includes a grounding terminal 31, a grounding bolt 32, and a grounding wire 33.

[0089] The grounding terminal 31 includes a contact portion 311 and a mounting portion 312. The contact portion 311 abuts against the first clamping seat 12 and has a second mounting hole 3111. The grounding bolt 32 passes through the second mounting hole 3111 and the third threaded hole 125 and is threadedly connected to the third threaded hole 125. The mounting portion 312 has a third mounting hole 3121, and one end of the grounding wire 33 is disposed in the third mounting hole 3121.

[0090] This structure allows for a detachable connection between the grounding conductor 30 and the first clamp 10. When needed, the grounding terminal 31 can be removed and the grounding conductor 30 replaced simply by unscrewing the grounding bolt 32. This effectively enhances the device's compatibility, flexibility, and reliability.

[0091] On the other hand, refer to Figure 9 As shown, this embodiment of the invention also provides a grounding wire device control method, applied to the grounding wire device as described in any of the above embodiments. The grounding wire device control method includes the following steps:

[0092] First, the grounding conductor 30 is grounded. The grounding conductor 30 is electrically connected to the first clamp 10, which includes two conductive fingers 11. Along the first direction D1, the two conductive fingers 11 are arranged alternately. The second clamp 20 is movably connected to the first clamp 10. Along the second direction D2, the second clamp 20 and the first clamp 10 are arranged alternately. The second clamp 20 is provided with a screw pair clearance portion 211.

[0093] Next, the second chuck 20 is switched to the released position. In the released position, the second chuck 20 is separated from the target busbar 01, which is provided with the target screw pair 02, and the second direction D2 is perpendicular to the first direction D1.

[0094] Next, the first chuck 10 is placed on the target busbar 01, and at least one conductive finger 11 abuts against the target screw assembly 02, so that the target screw assembly 02 and the first chuck 10 are electrically connected.

[0095] Finally, the second chuck 20 is controlled to move along the second direction D2, switching from the loose position to the clamping position. The second chuck 20 and the first chuck 10 in the clamping position cooperate to clamp the target busbar 01, and part of the target screw pair 02 is set in the screw pair clearance part 211.

[0096] Working principle:

[0097] During operation, the grounding wire 33 of the grounding conductor 30 is first grounded. Then, the worker holds the insulating handle 14, rotates the insulating grip section 233, and adjusts the second clamp 20 to the loose position. At the same time, the clamping distance of the conductive clamp fingers 11 is adjusted using a screwdriver.

[0098] After adjustment, the device can be connected to the target busbar 01. Specifically, first place the first chuck 10 on the target busbar 01, so that the conductive gripper fingers 11 extend into the target screw assembly 02. After the initial connection is completed, the operator adjusts the transmission groove 1331 with a screwdriver, causing the gripper finger adjustment piece 13 to rotate, thereby driving the conductive gripper fingers 11 to move closer together and clamp the target screw assembly 02, thus achieving the connection of the first chuck 10.

[0099] Next, the worker grasps the insulating handle 14, rotates the insulating grip section 233, and adjusts the second clamp 20 to the clamping position, so that the second clamp 20 and the first clamp 10 cooperate to clamp the target busbar 01. At this time, the bolt head of the target bolt pair 02 is located between the bolt pair clearance parts 211 and will not interfere with the clamping of the clamp. In this way, the target busbar 01 is grounded, and the corresponding maintenance and installation work can then be carried out.

[0100] After completing the task, a similar operation can be performed to separate the device from the target busbar 01.

[0101] Reference Figure 10 As shown in the figure, to verify the effectiveness of the device described in this invention, the inventors performed ten fixing operations using both a conventional clamp and the grounding wire device described in this invention. It can be seen from the figure that the fixing time required by the grounding wire device described in this invention is significantly less than that required by the conventional clamp, effectively improving the efficiency of grounding operations.

[0102] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0103] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0104] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A grounding wire device, characterized in that, include: The first clamp includes two conductive fingers; Along the first direction, the two conductive clips are arranged alternately. The second chuck is equipped with a screw pair clearance part; Along the second direction, the second clamp and the first clamp are arranged in sequence; the second clamp is movably connected to the first clamp, and the second clamp is movable relative to the first clamp along the second direction to switch between a clamping position and a releasing position; as well as, A grounding conductor is electrically connected to the first clamp; the grounding conductor is used for grounding. The second chuck and the first chuck, located at the clamping position, cooperate to clamp the target busbar. The target busbar is provided with a target screw pair. A portion of the target screw pair is located in the screw pair clearance portion. At least one of the conductive clamp fingers abuts against the target screw pair, so that the target screw pair and the first chuck are electrically connected. The second clamp, located in the released position, separates from the target busbar; the second direction is perpendicular to the first direction.

2. The grounding wire device according to claim 1, characterized in that: At least one of the conductive clip fingers is movable along the first direction to adjust the clamping distance between the two conductive clip fingers.

3. The grounding wire device according to claim 2, characterized in that: The first chuck also includes: A first clamping seat is provided with a first threaded hole and a guide groove, wherein the axial direction of the first threaded hole is parallel to the second direction, and the longitudinal direction of the guide groove is parallel to the first direction; and, The finger-clamping adjustment component includes a first adjustment shaft section and a second adjustment shaft section; the first adjustment shaft section is disposed in the first threaded hole, and the first adjustment shaft section is provided with a first transmission thread, which is threadedly connected to the first threaded hole; the second adjustment shaft section is provided with a plurality of first meshing teeth, which are arranged sequentially along the circumference of the second adjustment shaft section. One of the conductive grippers is fixedly connected to the first gripper, and the other conductive gripper is provided with a guide block, which is movably disposed in the guide groove; the guide block is provided with a plurality of second meshing teeth, which are arranged sequentially along the second direction, and the second meshing teeth and the first meshing teeth mesh and drive each other.

4. The grounding wire device according to claim 3, characterized in that: The finger clamping adjustment component further includes a third adjustment shaft section, and the third adjustment shaft section, the first adjustment shaft section and the second adjustment shaft section are arranged sequentially along the axial direction; the third adjustment shaft section is at least partially disposed outside the first clamping seat, and a transmission groove is provided at the end of the third adjustment shaft section that is axially away from the first adjustment shaft section.

5. The grounding wire device according to claim 1, characterized in that: The conductive clip finger is provided with a reinforcing rib; along the second direction, the reinforcing rib is provided on the side of the conductive clip finger away from the second clamp; along the first direction, the reinforcing rib is provided on the side of the conductive clip finger close to the other conductive clip finger.

6. The grounding wire device according to claim 1, characterized in that: The second chuck includes: The second clamping seat abuts against the first clamping seat of the first chuck; the second clamping seat is provided with a screw pair clearance portion; and... The chuck adjusting component includes a fourth adjusting shaft section, a fifth adjusting shaft section, and an insulating gripping section; the fourth adjusting shaft section, the fifth adjusting shaft section, and the insulating gripping section are arranged sequentially along the axial direction; the fourth adjusting shaft section is rotatably connected to the second clamping seat, and the fifth adjusting shaft section is provided with a second transmission thread; The first clamping seat is provided with a second threaded hole, the fifth adjusting shaft section is provided with the second threaded hole, and the second transmission thread and the second threaded hole are threadedly connected; The first clamp also includes an insulating handle; the insulating handle is hollow along the axial direction and is sleeved outside the insulating grip section, the axial dimension of the insulating handle is smaller than the axial dimension of the insulating grip section; one axial end of the insulating handle is connected to the first clamping seat.

7. The grounding wire device according to claim 6, characterized in that: The second clamping seat is also provided with a first mounting hole, and the wall surface of the first mounting hole is provided with an adjusting threaded through hole. An adjusting stud is provided in the adjusting threaded through hole, and the adjusting stud and the adjusting threaded through hole are threadedly connected. The fourth adjusting shaft section is rotatably disposed in the first mounting hole, and the shaft side wall of the fourth adjusting shaft section is provided with an adjusting ring groove, and the adjusting stud abuts against the groove wall surface of the adjusting ring groove.

8. The grounding wire device according to claim 6, characterized in that: The first clamping seat is provided with a first guide portion, and the second clamping seat is provided with a second guide portion; along the second direction, the second guide portion is slidably connected to the first guide portion.

9. The grounding wire device according to claim 6, characterized in that: The insulating handle is provided with an insulating flange, which surrounds the insulating handle along its circumference.

10. The grounding wire device according to claim 9, characterized in that: The insulating eaves include a first insulating section, a second insulating section, and a third insulating section; the first insulating section, the second insulating section, and the third insulating section are arranged sequentially along the axial direction of the insulating handle; the radial dimension of the first insulating section is smaller than the radial dimension of the third insulating section; the radial dimension of the second insulating section gradually decreases along the arrangement direction of the third insulating section and the first insulating section.

11. The grounding wire device according to claim 1, characterized in that: The first clamping seat of the first chuck is provided with a third threaded hole; The grounding conductor includes a grounding terminal, a grounding bolt, and a grounding wire; the grounding terminal includes a contact portion and a mounting portion, the contact portion abuts against the first clamping seat, and the contact portion is provided with a second mounting hole; the grounding bolt passes through the second mounting hole and the third threaded hole, and is threadedly connected to the third threaded hole; the mounting portion is provided with a third mounting hole, and one end of the grounding wire is disposed in the third mounting hole.

12. A grounding wire device control method, applied to the grounding wire device as described in any one of claims 1 to 11, characterized in that, Including the following steps: A grounding conductor is grounded; wherein the grounding conductor is electrically connected to a first clamp, the first clamp including two conductive fingers; along a first direction, the two conductive fingers are arranged alternately; a second clamp is movably connected to the first clamp; along a second direction, the second clamp and the first clamp are arranged alternately; the second clamp is provided with a screw pair avoidance part; Switch the second chuck to the released position; wherein, the second chuck in the released position is separated from the target busbar, and the target busbar is provided with a target screw pair; the second direction is perpendicular to the first direction; The first chuck is disposed on the target busbar, and at least one of the conductive clip fingers abuts against the target screw pair, so that the target screw pair and the first chuck are electrically connected. The second chuck is controlled to move along the second direction, switching from the released position to the clamping position. The second chuck and the first chuck in the clamping position cooperate to clamp the target busbar, and part of the target screw pair is disposed in the screw pair avoidance part.

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