A high voltage grounding wire device and its accessories

Abstract

The present invention relates to the technical field of power equipment, and specifically to a high-voltage grounding wire device and its accessories. The high-voltage grounding wire device includes a wiring clamp, which is U-shaped and has two straight arms, namely a first straight arm and a second straight arm. A first contact arm is hinged on the first straight arm, and a second contact arm is hinged on the second straight arm. A first torsion spring is provided at the hinge between the first contact arm and the first straight arm, and a second torsion spring is provided at the hinge between the second contact arm and the second straight arm. The first torsion spring and the second torsion spring make the first contact arm and the second contact arm form an "eight" state. The first contact arm has a first slide groove extending along its length direction, and the second contact arm has a second slide groove extending along its length direction. A wire is commonly connected between the bottom of the first slide groove and the bottom of the second slide groove. The part of the wire located outside the first contact arm and the second contact arm surrounds to form a circular conductive part. The circular conductive part is used to clamp the cable, which can enhance the grounding effect.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, in particular to a high-voltage grounding wire device and accessories thereof. Background Art

[0002] When inspecting and repairing cable lines, it is usually necessary to ground the cables to prevent operators from getting electric shock. The current method of short-circuiting the ground wire is to isolate the inspection area with an insulated operating rod and a wiring clamp.

[0003] For example, patent document CN222851674U discloses an ultra-high voltage security grounding device for preventing inductive current diversion. The device includes a terminal clamp with a connecting portion and a hook. A pressure block is located within the terminal clamp. The bottom end of the pressure block is provided with an adjustable compression screw that is screwed to the terminal clamp. Both the inner surface of the hook and the upper surface of the pressure block are provided with soft contact surfaces. The hook and pressure block are brought closer together by rotating the adjustable compression screw, thereby achieving compression of the conductor. However, the small contact area between the hook and the pressure block on the conductor increases contact resistance, affecting the grounding effect. Summary of the Invention

[0004] Based on this, it is necessary to provide a high-voltage grounding wire device and its accessories to address the technical problem of poor grounding effect of the current grounding device.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A high-voltage grounding wire device includes a wiring clamp, which is U-shaped and has two straight arms, namely a first straight arm and a second straight arm. A first contact arm is hinged on the first straight arm, and a second contact arm is hinged on the second straight arm. The first contact arm and the second contact arm both rotate around a horizontal axis, and a first torsion spring is provided at the hinge between the first contact arm and the first straight arm, and a second torsion spring is provided at the hinge between the second contact arm and the second straight arm. The first torsion spring and the second torsion spring make the first contact arm and the second contact arm form an "eight" state. The first contact arm has a first slide groove extending along its length direction, and the second contact arm has a second slide groove extending along its length direction. A wire is connected between the bottom of the first slide groove and the bottom of the second slide groove. The part of the wire located outside the first contact arm and the second contact arm can be surrounded to form a circular conductive part, and the circular conductive part is used to clamp the cable.

[0007] Furthermore, the wiring clamp is also provided with an adjustment component, which can automatically adjust the circumference of the circular conductive part to adapt to cables of different diameters. The adjustment component includes a first telescopic arm and a second telescopic arm, the first telescopic arm is slidably arranged in a first slide groove, and the second telescopic arm is slidably arranged in a second slide groove. The first telescopic arm and the second telescopic arm are both sleeved on the outside of the wire. The adjustment component also includes a first driving plate and a second driving plate, the first driving plate is hingedly arranged on the first straight arm, and the rotation of the first driving plate can adjust the length of the first telescopic arm extending from the first slide groove, the second driving plate is hingedly arranged on the second straight arm, and the rotation of the second driving plate can adjust the length of the second telescopic arm extending from the second slide groove.

[0008] Furthermore, the first telescopic arm is provided with a first protrusion, and the end of the first driving plate is engaged with the first protrusion, so that when the first driving plate rotates, the end of the first driving plate can drive the first protrusion to move, thereby causing the first telescopic arm to slide along the first sliding groove; the second telescopic arm is provided with a second protrusion, and the end of the second driving plate is engaged with the second protrusion, so that when the second driving plate rotates, the end of the second driving plate can drive the second protrusion to move, thereby causing the second telescopic arm to slide along the second sliding groove.

[0009] Furthermore, a first spring is provided between the end of the first telescopic arm located in the first slide groove and the bottom of the first slide groove, and the first spring has a tendency to cause the first telescopic arm to extend from the first slide groove; a second spring is provided between the end of the second telescopic arm located in the second slide groove and the bottom of the second slide groove, and the second spring has a tendency to cause the second telescopic arm to extend from the second slide groove.

[0010] Furthermore, the length of the second straight arm is greater than that of the first straight arm, and a screw is rotatably connected to the second straight arm. The outside of the screw is coaxially rotatably connected to a drive ring. When the screw rotates, the drive ring can move along the axial direction of the screw. The drive ring is fixedly connected to a drive frame through a connecting rod. The drive frame can slide along the length direction of the second straight arm and push the second contact arm and the second drive plate to rotate synchronously, so that the second telescopic arm is retracted into the second slide groove.

[0011] Furthermore, an outer circumferential surface of the screw rod is provided with an external thread, and an inner circumferential surface of the drive ring is provided with a slider, and the slider can slide along the external thread.

[0012] Furthermore, the first contact arm is provided with a first avoidance groove, and the first protrusion can slide along the first avoidance groove; the second contact arm is provided with a second avoidance groove, and the second protrusion can slide along the second avoidance groove.

[0013] Furthermore, the conductive wire is a copper wire.

[0014] An accessory for a high-voltage grounding wire device is applied to the above-mentioned high-voltage grounding wire device and comprises a grounding wire connected to a second straight arm.

[0015] Furthermore, a locking bolt is threadedly connected to the side surface of the second straight arm, and the grounding wire is wound around the locking bolt.

[0016] The beneficial effects of the present invention are:

[0017] The high-voltage grounding wire device and its accessories provided by the present invention feature a first contact arm and a second contact arm that allow the conductor to form a circular conductive portion. This circular conductive portion can wrap around the cable and adhere closely to its outer circumference. Compared to the prior art, where the pressure block and hook portion are close together to contact the conductor, this increases the conductive contact area, thereby reducing contact resistance and enhancing the grounding effect of the high-voltage grounding wire device. Furthermore, this contact method does not affect the contact area even when the terminal clamp shakes, ensuring a good grounding effect.

[0018] Second, an adjustment component is provided so that the circumference of the circular conductive portion can be automatically adjusted to adapt to cables of different diameters, thereby having a certain degree of versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a high-voltage grounding wire device provided in one embodiment of the present invention;

[0020] Figure 2 A schematic diagram of a first state of a high-voltage grounding wire device provided by an embodiment of the present invention;

[0021] Figure 3 A schematic side view of a high-voltage grounding wire device provided in one embodiment of the present invention;

[0022] Figure 4 for Figure 3 Middle AA section view;

[0023] Figure 5 A schematic diagram of a second state of a high-voltage grounding wire device provided by an embodiment of the present invention;

[0024] Figure 6 A schematic diagram of a third state of a high-voltage grounding wire device provided by an embodiment of the present invention;

[0025] Figure 7 A schematic diagram of a fourth state of a high-voltage grounding wire device provided by an embodiment of the present invention;

[0026] Figure 8 A schematic perspective view of a portion of the structure of a high-voltage grounding wire device provided in one embodiment of the present invention;

[0027] Figure 9 for Figure 8 Side view of

[0028] Figure 10 for Figure 9 Middle BB cross-section view.

[0029] in:

[0030] 101. Wiring clamp; 1011. First straight arm; 1012. Second straight arm; 102. First contact arm; 103. Second contact arm; 104. Second telescopic arm; 105. First telescopic arm; 106. Wire; 107. First drive plate; 108. Second spring; 109. Screw; 110. Connecting rod; 111. Drive ring; 112. Locking bolt; 113. Second drive plate; 114. Drive frame; 115. Second protrusion; 116. First protrusion; 117. First spring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0033] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0034] like Figures 1 to 10As shown, a high-voltage grounding wire device provided by an embodiment of the present invention includes a wiring clamp 101, the wiring clamp 101 is U-shaped, and the wiring clamp 101 has two straight arms, namely a first straight arm 1011 and a second straight arm 1012. The first straight arm 1011 is hinged with a first contact arm 102, and the second straight arm 1012 is hinged with a second contact arm 103. The first contact arm 102 and the second contact arm 103 both rotate around a horizontal axis, and a first torsion spring is provided at the hinge between the first contact arm 102 and the first straight arm 1011, and the second contact arm 103 and the second straight arm 103 rotate around a horizontal axis. A second torsion spring is provided at the hinge of contact arm 1012. These first and second torsion springs position the first and second contact arms 102 and 103 in an "eight" configuration. The first contact arm 102 has a first slot extending along its length, while the second contact arm 103 has a second slot extending along its length. A wire 106 is connected between the bottoms of the first and second slots. The portion of wire 106 located outside the first and second contact arms 102, 103 can wrap around to form a circular conductive portion for clamping a cable. The first and second contact arms 102, 103 are hinged to the first and second straight arms 1011, 1012, respectively, via a first hinge axis and a second hinge axis (not shown). Both the first and second hinge axes extend horizontally and are located near the opening of the U-shaped clamp 101.

[0035] A first torsion spring (not shown) is disposed on the first hinge shaft, and a second torsion spring (not shown) is disposed on the second hinge shaft. The first contact arm 102 and the second contact arm 103 are arranged in an "eight" configuration, which helps form a circular conductive portion for the wire 106. When the cable enters between the first contact arm 102 and the second contact arm 103, the first contact arm 102 and the second contact arm 103 can move away from each other, facilitating the cable's entry into the circular conductive portion.

[0036] The wire 106 is formed into a circular conductive portion through the first contact arm 102 and the second contact arm 103. The circular conductive portion can wrap around the cable and tightly adhere to the outer circumference of the cable. Compared with the prior art in which the pressure block and the hook are close to each other and contact the conductor, this can increase the conductive contact area, thereby reducing the contact resistance and enhancing the grounding effect of the high-voltage grounding wire device.

[0037] Furthermore, the wiring clamp 101 is also provided with an adjustment assembly that can automatically adjust the circumference of the circular conductive portion to accommodate cables of different diameters. The adjustment assembly includes a first telescopic arm 105 and a second telescopic arm 104. The first telescopic arm 105 is slidably disposed in a first chute, and the second telescopic arm 104 is slidably disposed in a second chute. Both the first telescopic arm 105 and the second telescopic arm 104 are sleeved around the exterior of the conductor 106. The adjustment assembly also includes a first drive plate 107 and a second drive plate 113. The first drive plate 107 is hingedly disposed on the first straight arm 1011, and rotation of the first drive plate 107 can adjust the length of the first telescopic arm 105 extending from the first chute. The second drive plate 113 is hingedly disposed on the second straight arm 1012, and rotation of the second drive plate 113 can adjust the length of the second telescopic arm 104 extending from the second chute. The first drive plate 107 is disposed on the first straight arm 1011 via a third hinge axis, and the second drive plate 113 is disposed on the second straight arm 1012 via a fourth hinge axis. The third hinge axis and the fourth hinge axis both extend in the horizontal direction and are located at positions of the U-connecting clamp 101 away from the opening.

[0038] Specifically, such as Figure 8 As shown, the width of the first telescopic arm 105 is half the width of the first contact arm 102, and the width of the second telescopic arm 104 is half the width of the second contact arm 103. In this way, when the first telescopic arm 105 and the second telescopic arm 104 cross and overlap, they do not protrude beyond the first contact arm 102 and the second contact arm 103 in the width direction of the first contact arm 102 and the second contact arm 103, making this arrangement more compact.

[0039] like Figure 2 As shown, when the first telescopic arm 105 extends longer from the first chute and the second telescopic arm 104 extends longer from the second chute, the length of the wire 106 outside the first contact arm 102, the first telescopic arm 105 and the second contact arm 103, the second telescopic arm 104 is shorter, and the circumference of the circular conductive portion formed by the wire 106 is smaller, so that it can adapt to cables with smaller diameters. Figure 5 As shown, when the first telescopic arm 105 extends relatively short from the first chute, and the second telescopic arm 104 extends relatively short from the second chute, the wire 106 extends longer outside the first contact arm 102, the first telescopic arm 105, the second contact arm 103, and the second telescopic arm 104. This increases the circumference of the circular conductive portion formed by the wire 106, thereby accommodating cables with larger diameters. Thus, the circumference of the circular conductive portion can be automatically adjusted to accommodate cables of varying diameters, providing a certain degree of versatility.

[0040] The first telescopic arm 105 is provided with a first protrusion 116, and the end of the first driving plate 107 is blocked and cooperated with the first protrusion 116, so that when the first driving plate 107 rotates, its end can drive the first protrusion 116 to move, thereby causing the first telescopic arm 105 to slide along the first sliding groove; the second telescopic arm 104 is provided with a second protrusion 115, and the end of the second driving plate 113 is blocked and cooperated with the second protrusion 115, so that when the second driving plate 113 rotates, its end can drive the second protrusion 115 to move, thereby causing the second telescopic arm 104 to slide along the second sliding groove. In this way, during the contact process between the cable and the first contact arm 102 and the second contact arm 103, the first contact arm 102 and the second contact arm 103 both rotate, the first contact arm 102 drives the first drive plate 107 to rotate, and the second contact arm 103 drives the second drive plate 113 to rotate, thereby causing the first telescopic arm 105 to slide along the first slide groove and the second telescopic arm 104 to slide along the second slide groove, thereby realizing the contraction of the first telescopic arm 105 and the second telescopic arm 104.

[0041] A first spring 117 is provided between the end of the first telescopic arm 105 located within the first chute and the bottom of the first chute. This first spring 117 tends to cause the first telescopic arm 105 to extend from the first chute. A second spring 108 is provided between the end of the second telescopic arm 104 located within the second chute and the bottom of the second chute. This second spring 108 tends to cause the second telescopic arm 104 to extend from the second chute. Both the first spring 117 and the second spring 108 are compression springs that facilitate the extension and return of the first and second telescopic arms 105, 104, thereby causing the wire 106 to form a circular conductive portion.

[0042] like Figure 5 As shown, the length of the second straight arm 1012 is greater than that of the first straight arm 1011, and the second straight arm 1012 is rotatably connected to a screw rod 109, and the outside of the screw rod 109 is coaxially rotatably connected to a drive ring 111. When the screw rod 109 rotates, the drive ring 111 can move along the axial direction of the screw rod 109, and the drive ring 111 is fixedly connected to a drive frame 114 through a connecting rod 110. The drive frame 114 can slide along the length direction of the second straight arm 1012, and push the second contact arm 103 and the second drive plate 113 to rotate synchronously, so that the second telescopic arm 104 is retracted into the second slide groove.

[0043] Furthermore, the outer circumference of the screw rod 109 is provided with an external thread, and the inner circumference of the drive ring 111 is provided with a slider that can slide along the external thread, thereby enabling the drive ring 111 to move outside the screw rod 109. The screw rod 109 is an insulating rod, and the bottom of the screw rod 109 is provided with a socket, into which a plurality of hand-held rods can be sequentially inserted. The number of hand-held rods can be adjusted according to the ground height.

[0044] Furthermore, the first contact arm 102 is provided with a first avoidance groove, along which the first protrusion 116 can slide, and the second contact arm 103 is provided with a second avoidance groove, along which the second protrusion 115 can slide. This facilitates the blocking engagement of the first protrusion 116 with the end of the first drive plate 107 and the second protrusion 115 with the end of the second drive plate 113.

[0045] The conductor 106 is a copper wire, which has good electrical conductivity and can be easily bent to form a circular conductive portion.

[0046] Furthermore, a locking bolt 112 is threadedly connected to the side of the second straight arm 1012. The locking bolt 112 is used to connect the ground wire. There are two locking bolts 112, which can enhance the connection effect of the ground wire.

[0047] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows:

[0048] In the initial state, the high voltage grounding device is as follows Figure 2 In the first state shown, the first telescopic arm 105 and the second telescopic arm 104 are arranged crosswise.

[0049] Then hang the wiring clamp 101 on the cable and move the wiring clamp 101 downward. The cable will push the first contact arm 102 and the second contact arm 103 to rotate. At this time, the high-voltage grounding wire device is as follows: Figure 6 In the third state shown, an opening is formed between the first contact arm 102 and the second contact arm 103, and the middle portion of the wire 106 changes from a circular shape to an arc shape, thereby facilitating the entry of the cable. The rotation of the first contact arm 102 drives the first drive plate 107 to rotate, causing the first drive plate 107 to push the first protrusion 116 to move, causing the first telescopic arm 105 to retract into the first chute. The second drive plate 113 pushes the second protrusion 115 to move, causing the second telescopic arm 104 to retract into the second chute. As the cable approaches the wire 106, the contact area between the cable and the first and second telescopic arms 105, 104 is reduced, thereby reducing friction on the cable and preventing damage to the cable.

[0050] After the cable moves to the inside of the conductor 106, the first contact arm 102 and the second contact arm 103 are reset under the action of the first torsion spring and the second torsion spring respectively, and under the action of the first spring 117 and the second spring 108, the first telescopic arm 105 and the second telescopic arm 104 are extended and reset, so that the conductor 106 re-forms a circular conductive part, which wraps the cable inside and fits tightly. If the clamped cable is a large diameter cable, under the action of the first spring 117 and the second spring 108, the first telescopic arm 105 and the second telescopic arm 104 extend to a short length, and the high-voltage grounding device is Figure 5 The second state shown in .

[0051] If the clamped cable is of small diameter, under the action of the first spring 117 and the second spring 108, the first telescopic arm 105 and the second telescopic arm 104 are extended to a longer length. Figure 2 The first state is shown in FIG. This reduces the circumference of the circular conductive portion formed by the wire 106, allowing the circular conductive portion to closely adhere to the outer circumference of a small-diameter cable, ensuring a sufficient conductive contact area. This contact method does not affect the contact area even when the terminal clamp 101 shakes, ensuring a good grounding effect.

[0052] When the high-voltage grounding device needs to be removed from the cable, the driving ring 111 is moved along the axial direction of the screw 109 by rotating the screw 109, and the driving ring 111 drives the driving frame 114 to slide along the second straight arm 1012, so that the second contact arm 103 and the second driving plate 113 are gradually parallel to the second straight arm 1012. At this time, the high-voltage grounding device is Figure 7 The fourth state is shown in FIG. The second contact arm 103 moves away from the first contact arm 102, thereby forming an opening between the first contact arm 102 and the second contact arm 103, and the circular conductive portion changes to an arc shape. Then, the screw rod 109 moves upward, driving the terminal clamp 101 upward, allowing the cable to pass through the opening and detach from the terminal clamp 101, thus completing the disassembly of the high-voltage grounding device.

[0053] An accessory for a high-voltage grounding wire device is applied to the above-mentioned high-voltage grounding wire device and comprises a grounding wire connected to a second straight arm.

[0054] The side of the second straight arm 1012 is threadedly connected to a locking bolt 112, and the grounding wire is wound around the locking bolt 112. The other end of the grounding wire away from the locking bolt 112 is provided with a grounding clamp, which is used to be fixedly connected to the grounding device.

[0055] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A high voltage grounding wire device, characterized in that: The invention relates to a wiring clamp, wherein the wiring clamp is U-shaped and has two straight arms, namely a first straight arm and a second straight arm, a first contact arm is hinged on the first straight arm, and a second contact arm is hinged on the second straight arm, the first contact arm and the second contact arm both rotate around a horizontal axis, and a first torsion spring is provided at the hinge between the first contact arm and the first straight arm, and a second torsion spring is provided at the hinge between the second contact arm and the second straight arm, the first torsion spring and the second torsion spring make the first contact arm and the second contact arm form an "eight" shape, the first contact arm has a first slide groove extending along its length direction, the second contact arm has a second slide groove extending along its length direction, a wire is commonly connected between the bottom of the first slide groove and the bottom of the second slide groove, and the part of the wire located outside the first contact arm and the second contact arm can be wrapped around to form A circular conductive part, which is used to clamp the cable. The wiring clamp is also provided with an adjustment component, which can automatically adjust the circumference of the circular conductive part to adapt to cables of different diameters. The adjustment component includes a first telescopic arm and a second telescopic arm, the first telescopic arm is slidably arranged in a first slide groove, and the second telescopic arm is slidably arranged in a second slide groove. The first telescopic arm and the second telescopic arm are both sleeved on the outside of the wire. The adjustment component also includes a first driving plate and a second driving plate, the first driving plate is hingedly arranged on the first straight arm, and the rotation of the first driving plate can adjust the length of the first telescopic arm extending from the first slide groove, the second driving plate is hingedly arranged on the second straight arm, and the rotation of the second driving plate can adjust the length of the second telescopic arm extending from the second slide groove.

2. The high-voltage grounding wire device according to claim 1, characterized in that: The first telescopic arm is provided with a first protrusion, and the end of the first driving plate is engaged with the first protrusion, so that when the first driving plate rotates, the end of the first driving plate can drive the first protrusion to move, thereby causing the first telescopic arm to slide along the first sliding groove; the second telescopic arm is provided with a second protrusion, and the end of the second driving plate is engaged with the second protrusion, so that when the second driving plate rotates, the end of the second driving plate can drive the second protrusion to move, thereby causing the second telescopic arm to slide along the second sliding groove.

3. The high-voltage grounding wire device according to claim 2, characterized in that: A first spring is provided between the end of the first telescopic arm located in the first slide groove and the bottom of the first slide groove, and the first spring has a tendency to cause the first telescopic arm to extend from the first slide groove; a second spring is provided between the end of the second telescopic arm located in the second slide groove and the bottom of the second slide groove, and the second spring has a tendency to cause the second telescopic arm to extend from the second slide groove.

4. The high-voltage grounding wire device according to claim 3, characterized in that: The length of the second straight arm is greater than that of the first straight arm. A screw is rotatably connected to the second straight arm. The outside of the screw is coaxially rotatably connected to a drive ring. When the screw rotates, the drive ring can move along the axial direction of the screw. The drive ring is fixedly connected to a drive frame through a connecting rod. The drive frame can slide along the length direction of the second straight arm and push the second contact arm and the second drive plate to rotate synchronously, so that the second telescopic arm is retracted into the second slide groove.

5. The high-voltage grounding wire device according to claim 4, characterized in that: An external thread is provided on the outer circumference of the screw rod, and a slider is provided on the inner circumference of the drive ring. The slider can slide along the external thread.

6. The high-voltage grounding wire device according to claim 1, characterized in that: The first contact arm is provided with a first avoidance groove, and the first protrusion can slide along the first avoidance groove; the second contact arm is provided with a second avoidance groove, and the second protrusion can slide along the second avoidance groove.

7. The high-voltage grounding wire device according to claim 1, characterized in that: The conducting wire is a copper wire.

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