Detachable grounding device and grounding method of cable terminal

Abstract

The embodiment of the invention provides a detachable grounding device of a cable terminal and a grounding method, and belongs to the technical field of cable terminal grounding. The detachable grounding device comprises a column body, wherein a column cavity is formed in the column body; the plurality of groups of grounding clamping plates are circumferentially arranged on the outer side of the column body; and the driving assembly is arranged in the column cavity, is connected with the plurality of groups of grounding clamping plates, and is used for driving the plurality of groups of grounding clamping plates to be close to or far away from the center position of the column body so as to clamp and fix a cable terminal. The mode that the driving assembly is matched with the multiple sets of grounding clamping plates to enlarge or reduce the clamping space is adopted, on one hand, the grounding requirements of cable terminals of different forms can be met, universality is higher, on the other hand, the clamping contact face can be effectively increased, and the grounding stability of the cable terminals can be improved.

Description

Technical Field

[0001] This invention relates to the field of cable terminal grounding technology, and more specifically to a detachable grounding device and grounding method for cable terminals. Background Technology

[0002] Cable terminations, also known as cable end caps, are special devices or components installed at the end of cable lines to ensure a safe and reliable connection between the cable and other parts of the power system (such as transformers, switchgear, overhead lines, etc.) and to maintain the integrity of the cable's own insulation. When line maintenance is required, the cable terminations must be grounded to ensure the safety of personnel.

[0003] Currently, U-shaped clamps are generally used to hold cable terminals in place to achieve grounding. However, due to the different forms and shapes of cable terminals, including protruding and embedded types, traditional U-shaped clamp grounding devices are not suitable for various types of cable terminal grounding, resulting in poor versatility. Furthermore, their small contact surface leads to poor grounding stability.

[0004] In the process of realizing this invention, the inventors of this application discovered that the above-mentioned solutions in the prior art have the defects of poor grounding universality and poor stability. Summary of the Invention

[0005] The purpose of this invention is to provide a detachable grounding device and grounding method for cable terminals, which has the functions of good grounding versatility and good stability.

[0006] To achieve the above objectives, embodiments of the present invention provide a detachable grounding device for a cable terminal, comprising: A column, wherein a column cavity is formed inside the column; Multiple sets of grounding clamps are arranged circumferentially on the outside of the column; A drive assembly, disposed inside the column cavity and connected to multiple sets of grounding clamps, is used to drive the multiple sets of grounding clamps to clamp and fix the cable terminals along positions close to or away from the center of the column.

[0007] Optionally, the driving component includes: A circular plate is rotatably disposed inside the cylindrical cavity and is rotatably connected to the inner wall of the cylindrical cavity through one end of a first rotating shaft; Multiple sets of arc-shaped holes are formed circumferentially on the circular plate, with one end of each arc-shaped hole close to the first rotating shaft and the other end close to the edge of the circular plate. Multiple drive plates are arranged circumferentially on one side of the circular plate. One end of the drive plate is provided with a first guide post. The end of the first guide post away from the drive plate extends into the corresponding arc-shaped hole. The other end of the drive plate moves through the post and connects to the corresponding grounding clamp. A rotating assembly is disposed on one side of the circular plate and connected to the other end of the first rotating shaft, for driving the first rotating shaft to rotate.

[0008] Optionally, the rotating assembly includes: The second rotating shaft has one end sleeved on the other end of the first rotating shaft and slidably connected to the first rotating shaft axially, and the other end of the second rotating shaft passes through the column and is threadedly connected to the column. The snap-fit ​​post, which is polygonal in shape, is located at the other end of the second rotating shaft.

[0009] Optionally, the grounding clamp is L-shaped and is connected to the other end of the corresponding drive plate by a first bolt.

[0010] Optionally, it also includes: Multiple sets of grooves are formed on the inner wall of the column cavity, and correspond to the other drive plates except for the two sets of drive plates that are distributed opposite to each other; Multiple sets of guide holes are formed at one end of the column near the snap-fit ​​post, and the guide holes communicate with the corresponding grooves; Multiple sets of second guide posts are respectively disposed inside multiple sets of grooves. One end of the second guide post is connected to the corresponding drive plate, and the other end of the second guide post extends into the corresponding guide hole. An adjustment component is disposed at one end of the column near the snap-fit ​​post, and is used to connect with multiple sets of second guide posts to control the multiple sets of second guide posts to drive the drive plate into the corresponding groove.

[0011] Optionally, the adjustment component includes: A ring plate, wherein multiple sets of fixing grooves are provided on one side of the ring plate, and the fixing grooves are engaged with the other end of the second guide post; Two sets of support components are disposed at one end of the column near the snap-fit ​​post and symmetrically distributed on the outer side of the ring plate. The opposite ends of the two sets of support components are connected to the ring plate to drive the ring plate to move away from the column.

[0012] Optionally, the support component includes: A first fixing plate is disposed on the ring plate; A sliding groove is formed at one end of the column near the snap-fit ​​post, and a sliding plate is slidably disposed inside the sliding groove; A second fixing plate is mounted on the sliding plate; The rotating rod has one end rotatably connected to the first fixed plate and the other end rotatably connected to the second fixed plate; A locking component, disposed inside the slide groove, is used to limit the relative position of the slide plate within the slide groove.

[0013] Optionally, the locking component includes: Multiple sets of threaded holes are formed at the inner bottom of the slide groove; The second bolt, with its threads penetrating the slide plate, is used to engage with the threaded hole to secure the slide plate.

[0014] Optionally, a third bolt is provided on the grounding clamp corresponding to the two sets of oppositely distributed drive plates for connecting the grounding wire.

[0015] On the other hand, the present invention also provides a grounding method for cable grounding using the above-mentioned detachable grounding device, comprising: Determine whether the cable terminal has a convex or concave structure; If it is determined that the cable terminal has an outward convex structure, the rotating assembly is activated to drive the circular plate to rotate, thereby causing multiple sets of driving plates and the corresponding grounding clamps to move away from each other; Drive the column closer to the cable terminal until multiple sets of grounding clamps are fitted onto the outside of the cable terminal; The rotating assembly is activated to drive the circular plate to rotate in the opposite direction, thereby causing multiple sets of grounding clamps to clamp and fix the cable terminal. Through the above technical solution, the detachable grounding device and grounding method for cable terminals provided by this invention, when grounding a convex cable terminal, activates the drive assembly to drive multiple sets of grounding clamps away from the center of the column, thus expanding the clamping space. Then, the multiple sets of grounding clamps are moved to the outside of the cable terminal, and the drive assembly is activated again to drive the multiple sets of grounding clamps closer to the center of the column, thus reducing the clamping space to clamp and fix the cable terminal. When grounding a recessed cable terminal, the drive assembly first reduces the clamping space. Then, when the multiple sets of grounding clamps enter the cable terminal, the drive assembly expands the clamping space so that the multiple sets of grounding clamps abut and fix against the inner wall of the cable terminal, thereby achieving grounding of the cable terminal. By using a drive assembly in conjunction with multiple sets of grounding clamps to expand or reduce the clamping space, the grounding requirements of different types of cable terminals can be met, making it more versatile. Furthermore, it effectively increases the clamping contact surface, improving the stability of the cable terminal grounding.

[0016] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a structural schematic diagram of a detachable grounding device for a cable terminal according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the cylindrical cavity in a detachable grounding device for a cable terminal according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the snap-fit ​​post in a detachable grounding device for a cable terminal according to an embodiment of the present invention; Figure 4 It is based on Figure 3 Enlarged view of region A in the middle; Figure 5 This is a schematic diagram of the ring plate in a detachable grounding device for a cable terminal according to an embodiment of the present invention. Figure 6 This is a schematic diagram showing the connection between the first and second rotating shafts in a detachable grounding device for a cable terminal according to an embodiment of the present invention. Figure 7 This is a flowchart of a detachable grounding method for a cable terminal according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures 1. Column; 2. Drive plate; 3. Grounding clamp; 4. First bolt; 5. Fourth bolt; 6. Column cavity; 7. Circular plate; 8. Arc-shaped hole; 9. First guide post; 10. Fixing groove; 11. First rotating shaft; 12. Guide hole; 13. Snap-fit ​​post; 14. Third bolt; 15. Groove; 16. Rotating rod; 17. Ring plate; 18. Slide groove; 19. Slide plate; 20. Second rotating shaft; 21. Second guide post; 22. First fixing plate; 23. Second fixing plate. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0020] It should be noted that the acquisition, transmission, storage, use, and processing of data in the technical solution of this application all comply with relevant laws and regulations. In the embodiments of this application, certain existing industry solutions such as software, components, and models may be mentioned. These should be considered exemplary, intended only to illustrate the feasibility of implementing the technical solution of this application, and do not imply that the applicant has already used or necessarily used such solutions.

[0021] Figure 1 This is a schematic diagram of the structure of a detachable grounding device for a cable terminal according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the internal structure of the cylindrical cavity 6 in a detachable grounding device for a cable terminal according to an embodiment of the present invention. Figure 1 and Figure 2 In this device, the detachable grounding device may include a column 1, multiple sets of grounding clamps 3, and a drive assembly. Specifically, the column 1 may include a column cavity 6.

[0022] The column 1 has a cavity 6 inside, and multiple sets of grounding clamps 3 are arranged circumferentially on the outside of the column 1. The drive assembly is located inside the cavity 6 and is connected to the multiple sets of grounding clamps 3. It is used to drive the multiple sets of grounding clamps 3 to move closer to or away from the center of the column 1 to clamp and fix the cable terminal.

[0023] Before grounding the cable terminal, the form / type of the cable terminal must be determined, such as a raised / outward-protruding cable terminal or a recessed / embedded cable terminal. If the cable terminal is raised / outward-protruding, the drive assembly is activated. The drive assembly moves multiple grounding clamps 3 away from the center of the column 1, thus widening the clamping space. Then, the multiple grounding clamps 3 are moved closer to the cable terminal until they are located on the outside of the cable terminal. The drive assembly is activated again, moving the multiple grounding clamps 3 closer to the center of the column 1, thus narrowing the clamping space to contact and clamp the cable terminal. The multiple grounding clamps 3 are connected to a ground wire, thus achieving the purpose of grounding the cable terminal. If the cable terminal is recessed / embedded, the drive assembly is activated, moving the multiple grounding clamps 3 closer to the center of the column 1, thus narrowing the clamping space. Next, move the multiple sets of grounding clamps 3 along the direction closer to the cable terminal until the multiple sets of grounding clamps 3 are located inside the cable terminal. Activate the drive assembly, which drives the multiple sets of grounding clamps 3 to move away from the center of the column 1, that is, the multiple sets of grounding clamps 3 move away from each other, expanding the clamping space so as to abut and fix them against the inner wall of the cable terminal. The multiple sets of grounding clamps 3 are connected to a ground wire, thus achieving the purpose of grounding the cable terminal.

[0024] Traditional cable termination devices typically use U-shaped clamps to hold the cable termination for grounding. However, due to the diverse forms and shapes of cable terminations, including protruding and embedded types, traditional U-shaped clamp grounding devices are not suitable for various cable termination grounding methods, resulting in poor versatility. Furthermore, their small contact surface leads to poor grounding stability. In this embodiment of the invention, a driving component is used in conjunction with multiple sets of grounding clamps 3 to expand or reduce the clamping space. This not only meets the grounding requirements of different types of cable terminations, enhancing versatility, but also effectively increases the clamping contact surface, improving the stability of the cable termination grounding.

[0025] In this embodiment of the invention, such as Figure 2 As shown, the drive assembly may include a circular plate 7, multiple sets of arc-shaped holes 8, multiple sets of drive plates 2, and a rotating assembly. Specifically, the circular plate 7 may include a first rotating shaft 11, and the drive plate 2 may include a first guide post 9.

[0026] A circular plate 7 is rotatably disposed inside the cylindrical cavity 6 and is rotatably connected to the inner wall of the cylindrical cavity 6 via one end of a first rotating shaft 11. Multiple sets of arc-shaped holes 8 are circumferentially formed on the circular plate 7, with one end of each arc-shaped hole 8 close to the first rotating shaft 11 and the other end close to the edge of the circular plate 7. Multiple sets of drive plates 2 are circumferentially disposed on one side of the circular plate 7. One end of each drive plate 2 is provided with a first guide post 9, the end of which extends away from the drive plate 2 into the corresponding arc-shaped hole 8, and the other end of the drive plate 2 movably passes through the side wall of the column 1 and is connected to the corresponding grounding clamp 3. A rotating assembly is disposed on one side of the circular plate 7 and connected to the other end of the first rotating shaft 11, used to drive the first rotating shaft 11 to rotate. Specifically, the connection method between the multiple sets of drive plates 2 and the cylindrical cavity 6 may include a sliding connection between the drive plates 2 and the inner wall of the cylindrical cavity 6, allowing the drive plates 2 to move closer to or further away from the center of the column 1 / circular plate 7.

[0027] When multiple grounding clamps 3 need to be moved closer or further apart, the rotating assembly is activated, driving the circular plate 7 to rotate via the first rotating shaft 11. As the circular plate 7 rotates, multiple sets of arc-shaped holes 8 rotate accordingly, pushing the corresponding first guide posts 9 to move. Since the driving plate 2 is slidably connected to the inner wall of the column cavity 6, the arc-shaped holes 8 push the first guide posts 9 to move closer to or further away from the center of the circular plate 7; that is, the driving plate 2 will contract or extend outside the column body 1. Consequently, the driving plate 2 will move the corresponding grounding clamps 3 closer to or further away from the column body 1. By using multiple sets of arc-shaped holes 8 in conjunction with multiple sets of first guide posts 9, the purpose of moving multiple grounding clamps 3 closer or further apart can be effectively achieved, thus simultaneously reducing or expanding the clamping space, making the process more flexible and reliable.

[0028] In this embodiment of the invention, such as Figure 3 , Figure 4 as well as Figure 6 As shown, the rotating assembly may include a second rotating shaft 20 and a snap-fit ​​post 13.

[0029] One end of the second rotating shaft 20 is sleeved on the other end of the first rotating shaft 11 and is axially slidably connected to the first rotating shaft 11. The other end of the second rotating shaft 20 moves through the column 1 and is threadedly connected to the column 1. The snap-fit ​​post 13 is polygonal and is located at the other end of the second rotating shaft 20.

[0030] When it is necessary to drive the circular plate 7 to rotate, the locking post 13 can be turned, which in turn drives the second rotating shaft 20 to rotate. Since the second rotating shaft 20 is threadedly connected to the column body, and the other end of the first rotating shaft 11 is axially slidably connected to one end of the second rotating shaft 20, the rotation of the second rotating shaft 20 can drive the first rotating shaft 11 to rotate synchronously, thereby achieving the drive for the rotation of the circular plate 7. Furthermore, the locking post 13 adopts a variable column shape, which can be used with a handheld insulating rod. A polygonal groove is provided at the end of the handheld insulating rod to engage with the polygonal column shape, thereby achieving remote and convenient driving. Specifically, the locking post 13 may include a hexagonal column shape.

[0031] In this embodiment of the invention, after the cable terminal is clamped and grounded, the method of fixing the locking post 13 can also include, but is not limited to, rotatably connecting the second rotating shaft 20 to the column body, fixing the second rotating shaft 20 to the first rotating shaft 11, opening multiple sets of limiting holes at the end of the column body 1 near the locking post 13, and setting a limiting rod at the end edge of the locking post 13 near the second rotating shaft 20, and the locking post 13 and the second rotating shaft 20 can only move axially (the locking post 13 is sleeved on the end of the second rotating shaft 20, and the second rotating shaft 20 and the locking post 13 are axially slidably connected), so as to fix the locking post 13 by the cooperation of the limiting rod and the limiting hole.

[0032] In this embodiment of the invention, the shape of the grounding clamp 3 can include various forms known to those skilled in the art, such as a long plate, an arc-shaped plate, etc. However, in one embodiment of the invention, considering the stability of the connection between the grounding clamp 3 and the drive plate 2 and the stability of clamping the cable terminal, the shape of the grounding clamp 3 can be as follows: Figure 1 and Figure 2 As shown. Specifically, in Figure 1 and Figure 2 In this configuration, the grounding clamp 3 may be L-shaped. The horizontal section of the grounding clamp 3 is connected to the other end of the corresponding drive plate 2 via a first bolt 4, and the grounding clamp 3 is disposed on the side of the drive plate 2 near the circular plate 7. Specifically, the vertical section of the grounding clamp 3 protrudes from the end of the column 1, so that multiple sets of grounding clamps 3 can clamp and fix the cable terminal.

[0033] In this embodiment of the invention, such as Figure 1 and Figure 2 As shown, the grounding clamp 3 may also include a fourth bolt 5, and a conductor is provided between two adjacent grounding clamps 3 for short-circuiting the two adjacent fourth bolts 5. Specifically, for multiple sets of grounding clamps 3, two sets of relatively distributed grounding clamps 3 can be selected as conductive clamps, that is, the two sets of grounding clamps 3 are made of conductive material and can stably conduct with the cable terminal for grounding. Furthermore, the conductor between two adjacent sets of grounding clamps 3 can achieve short-circuiting of the two sets of conductive grounding clamps 3.

[0034] In this embodiment of the invention, such as Figure 3 and Figure 4 As shown, the detachable grounding device may also include multiple sets of grooves 15, multiple sets of guide holes 12, multiple sets of second guide posts 21, and adjustment components.

[0035] Multiple sets of grooves 15 are formed on the inner wall of the column cavity 6, and correspond to the other drive plates 2 except for the two sets of oppositely distributed drive plates 2. Specifically, the two sets of oppositely distributed drive plates 2 correspond to the two sets of oppositely distributed grounding clamps 3 mentioned above. Multiple sets of guide holes 12 are formed at the end of the column 1 near the snap-fit ​​post 13, and the guide holes 12 communicate with the corresponding grooves 15. Multiple sets of second guide posts 21 are respectively disposed inside the multiple sets of grooves 15, one end of the second guide post 21 is connected to the corresponding drive plate 2, and the other end of the second guide post 21 extends into the corresponding guide hole 12. An adjustment component is disposed at the end of the column 1 near the snap-fit ​​post 13, and is used to connect with the multiple sets of second guide posts 21 to control the multiple sets of second guide posts 21 to drive the drive plates 2 into the corresponding grooves 15.

[0036] When grounding cable terminals with large spacing, such as strips or plates, is required, first reset multiple sets of second guide posts 21, that is, rotate multiple sets of second guide posts 21 to the end of the guide hole 12 near the center of the column 1, and connect multiple sets of second guide posts 21 to the adjustment assembly. Then start the adjustment assembly to drive the drive plates 2 other than the two sets of oppositely distributed drive plates 2 through multiple sets of second guide posts 21 until the drive plates 2 other than the two sets of oppositely distributed drive plates 2 can enter the corresponding groove 15. At this time, the first guide post 9 of the drive plates 2 other than the two sets of oppositely distributed drive plates 2 moves out of the corresponding arc-shaped hole 8, and the vertical section of the L-shaped grounding clamp 3 retracts to the side wall of the column 1, that is, the first guide post 9 of the two sets of oppositely distributed drive plates 2 mates with the corresponding hole, and the corresponding L-shaped grounding clamp 3 protrudes from the end of the column 1. Rotating the locking post 13 allows adjustment of the spacing between the two sets of relatively distributed drive plates 2, enabling clamping and grounding of cable terminals with large spacing, such as clamping the width direction of the cable terminal. When resetting the two sets of relatively distributed drive plates 2, the two sets of relatively distributed grounding clamps 3 also need to be reset until the corresponding first guide post 9 is located near the center end of the circular plate 7. Then, the adjustment component drives the multiple sets of second guide posts 21 to reset, so that the first guide post 9 of the two sets of relatively distributed drive plates 2 enters the corresponding arc-shaped hole 8. Finally, the adjustment component and the connection of the multiple sets of second guide posts 21 can be disassembled.

[0037] Furthermore, since all the drive plates 2 except for the two sets of relatively distributed drive plates 2 need to move axially along the circular plate 7 / cylinder cavity 6, the drive plates 2 except for the two sets of relatively distributed drive plates 2 are not slidably connected to the inner wall of the cylinder cavity 6. Instead, the inward or outward movement of the drive plates 2 can be limited by multiple sets of guide holes 12. Specifically, the inner wall of the guide hole 12 is provided with a strip groove (not shown in the figure), and the second guide post 21 is slidably engaged with the strip groove. The distance between the end of the guide hole 12 near the center of the cylinder 1 is greater than the distance between other parts of the guide hole 12, so that the second guide post 21 can move axially at the end of the guide hole 12 near the center of the cylinder 1. As for the two sets of relatively distributed drive plates 2, they can be slidably connected to the inner wall of the cylinder cavity 6, thereby effectively ensuring the stability and reliability of the expansion or contraction of the multiple sets of grounding clamps 3.

[0038] In this embodiment of the invention, such as Figure 3 , Figure 4 as well as Figure 5 As shown, the adjustment assembly may include a ring plate 17 and two sets of support assemblies.

[0039] Multiple sets of fixing grooves 10 are formed on one side of the ring plate 17, and the fixing grooves 10 are engaged with the other end of the second guide post 21. Two sets of support components are arranged at the end of the column 1 near the locking post 13, and are symmetrically distributed on the outer side of the ring plate 17. The opposite ends of the two sets of support components are connected to the ring plate 17, and are used to drive the ring plate 17 to move in a direction away from the column 1. Specifically, the ring plate 17 is sleeved on the outer side of the locking post 13.

[0040] When multiple sets of second guide posts 21 need to be moved, they are first connected to the ring plate 17. Then, two sets of support components are driven to support and control the ring plate 17, causing it to gradually move closer to or away from the column 1. During the movement of the ring plate 17, multiple sets of second guide posts 21 can move synchronously, causing the corresponding drive plate 2 to enter or reset into the corresponding groove 15. Using support components to drive the ring plate 17 ensures stable and reliable adjustment.

[0041] In this embodiment of the invention, such as Figure 5 As shown, the snap-fit ​​method between the ring plate 17 and the multiple sets of second guide posts 21 can include opening multiple sets of fixing grooves 10 on the side of the ring plate 17 near the column 1, and setting snap-fit ​​protrusions and snap-fit ​​grooves on the inner wall of the fixing groove 10 and the side wall of the corresponding second guide post 21. The snap-fit ​​protrusions and snap-fit ​​grooves can cooperate to snap-fit ​​and fix. When all the second guide posts 21 are located at the end of the guide hole 12 near the center of the column 1, that is, when all the first guide posts 9 of the drive plate 2 are located inside the corresponding arc-shaped hole 8, the multiple sets of second guide posts 21 snap-fit ​​with the corresponding fixing grooves 10. At this time, rotating the snap-fit ​​post 13, the multiple sets of drive plates 2 move under the drive of the rotation of the corresponding arc-shaped hole 8. After the driving force reaches a certain value, the drive plate 2 will drive the corresponding second guide post 21 to disengage from the snap-fit ​​fixation of the fixing groove 10. Conversely, when the multiple sets of drive plates 2 move under the drive of the reverse rotation of the corresponding arc-shaped hole 8, after the driving force reaches a certain value, the drive plate 2 will drive the corresponding second guide post 21 to snap-fit ​​and fix with the fixing groove 10. Therefore, by using the method of snapping the second guide post 21 with the fixing groove 10, the second guide post 21 and the ring plate 17 can be stably connected on the one hand, and the synchronous movement of multiple sets of drive plates 2 will not be affected on the other hand.

[0042] In this embodiment of the invention, such as Figure 3 and Figure 4 As shown, the support assembly may include a first fixing plate 22, a slide groove 18, a second fixing plate 23, a rotating rod 16, and a locking assembly. Specifically, the slide groove 18 may include a sliding plate 19.

[0043] A first fixing plate 22 is disposed on the ring plate 17. A sliding groove 18 is formed at one end of the column 1 near the locking post 13. A sliding plate 19 is slidably disposed inside the sliding groove 18. A second fixing plate 23 is disposed on the sliding plate 19. One end of the rotating rod 16 is rotatably connected to the first fixing plate 22, and the other end of the rotating rod 16 is rotatably connected to the second fixing plate 23. A locking assembly is disposed inside the sliding groove 18 to limit the relative position of the sliding plate 19 in the sliding groove 18.

[0044] When it is necessary to drive the ring plate 17 away from the column 1, the two sets of sliding plates 19 are simultaneously pushed to slide and move closer to each other in their respective grooves 18. Since the two ends of the rotating rod 16 are rotatably connected to the first fixed plate 22 and the second fixed plate 23 respectively, the ring plate 17 can be pushed away from the column 1 by the corresponding rotating rod 16 when the two sets of sliding plates 19 slide. When the ring plate 17 reaches the corresponding position, that is, when the other driving plates 2 enter the corresponding groove 15, the position of the sliding plate 19 is fixed by the locking assembly, thus achieving the purpose of clamping and grounding the cable terminal using two sets of relatively distributed grounding clamps 3. When it is necessary to drive the ring plate 17 closer to the column 1, the locking assembly is controlled to disengage from the limiting of the sliding plate 19, and the ring plate 17 is pressed so that the two sets of sliding plates 19 slide and reset in the corresponding grooves 18, and are fixed by the locking assembly. The method of using the sliding plates 19 and the rotating rod 16 to drive the ring plate 17 to move is more convenient and reliable.

[0045] In this embodiment of the invention, the locking assembly may include multiple sets of threaded holes and a second bolt (not shown in the figure).

[0046] Multiple sets of threaded holes are formed at the inner bottom of the slide groove 18, and the second bolt threaded through the slide plate 19 is used to fix the slide plate 19 by engaging with the threaded holes. Specifically, the threaded holes may include two sets, which are located at both ends of the slide groove 18 respectively.

[0047] The second bolt, in conjunction with the threaded hole, effectively secures the slide plate 19, making it more stable and reliable. Specifically, when the slide plate 19 is located near the center of the column 1, the drive plate 2 corresponding to the second guide post 21 is located inside the groove 15; when the slide plate 19 is located away from the center of the column 1, the first guide post 9 corresponding to the drive plate 2 is located inside the arc-shaped hole 8.

[0048] In this embodiment of the invention, such as Figure 3 As shown, the grounding clamps 3 corresponding to the two sets of relatively distributed drive plates 2 are provided with a third bolt 14, that is, the two sets of relatively distributed drive plates 2 that can be connected to the cable terminal are provided with a third bolt 14 for connecting and fixing the grounding wire.

[0049] On the other hand, the present invention also provides a detachable grounding method for cable terminals, such as... Figure 7 As shown, this detachable grounding method may include: In step S1, it is determined whether the cable terminal has an outward convex structure or an inward concave structure.

[0050] In step S2, if it is determined that the cable terminal has a convex structure, the rotating assembly is activated to drive the circular plate 7 to rotate, thereby causing multiple sets of driving plates 2 and corresponding grounding clamps 3 to move away from each other. Specifically, when the circular plate 7 rotates (in the forward direction), multiple sets of first guide posts 9, in conjunction with corresponding arc-shaped holes 8, can push the multiple sets of driving plates 2 to move synchronously, thus expanding the clamping space. Specifically, the forward direction is defined as pushing the multiple sets of driving plates 2 away from each other, and the reverse direction is defined as pushing them closer together.

[0051] In step S3, the drive column 1 approaches the cable terminal until multiple sets of grounding clamps 3 are fitted onto the outside of the cable terminal.

[0052] In step S4, the rotating assembly is activated, driving the circular plate 7 to rotate in the opposite direction, thereby causing multiple sets of grounding clamps 3 to clamp and fix the cable terminal. The reverse rotation of the circular plate 7, through the engagement of multiple sets of first guide posts 9 with corresponding arc-shaped holes 8, can drive multiple sets of drive plates 2 to move synchronously in the opposite direction, thus reducing the clamping space.

[0053] In step S5, if it is determined that the cable terminal has a concave structure, the rotating assembly is activated to drive the circular plate 7 to rotate in the opposite direction, thereby causing multiple sets of driving plates 2 and corresponding grounding clamps 3 to move closer to each other. During the reverse rotation of the circular plate 7, multiple sets of first guide posts 9, in conjunction with corresponding arc-shaped holes 8, can push multiple sets of driving plates 2 to move synchronously in the opposite direction, thereby reducing the clamping space.

[0054] In step S6, the drive column 1 moves closer to the cable terminal until the multiple sets of grounding clamps 3 are located inside the cable terminal.

[0055] In step S7, the rotating assembly is activated to drive the circular plate 7 to rotate, thereby causing multiple sets of grounding clamps 3 to abut and fix the cable terminal. The circular plate 7 rotates (forward), and through the engagement of multiple sets of first guide posts 9 with corresponding arc-shaped holes 8, it can drive multiple sets of drive plates 2 to move synchronously, thereby expanding the clamping space.

[0056] In steps S1 to S7, different grounding methods can be used for different types of cable terminal structures. Specifically, for cable terminals with convex structures, the clamping space can be expanded and then reduced to perform clamping grounding; while for cable terminals with concave structures, the clamping space can be reduced and then expanded to perform clamping grounding.

[0057] In this embodiment of the invention, for cable terminals with increased spacing such as strip or plate shapes, the following grounding method can be used: Step 1: Drive multiple sets of drive boards 2 to reset until the first guide post 9 is located at the end of the corresponding arc-shaped hole 8 near the center of the circular plate 7.

[0058] Step 2: Connect multiple sets of second guide posts 21 to the ring plate 17.

[0059] Step 3: Push the two sets of sliders to slide relative to each other to the end of the slide groove 18, and tighten them by engaging the second bolt with the threaded hole.

[0060] Step 4: Drive the locking pin 13 to rotate, so as to control the two sets of relatively distributed grounding clamps 3 to move away from each other.

[0061] Step 5: Control the two sets of relatively distributed grounding clamps 3 to be located on the outside of the cable terminal.

[0062] Step 6: Drive the locking post 13 to rotate in the opposite direction to control the two sets of oppositely distributed grounding clamps 3 to move closer to each other and clamp the cable terminal to ground.

[0063] Through the above technical solution, the detachable grounding device and grounding method for cable terminals provided by the present invention, when grounding a convex cable terminal, activates the drive assembly to drive multiple sets of grounding clamps 3 away from the center of the column 1, thus expanding the clamping space. Then, the multiple sets of grounding clamps 3 are moved to the outside of the cable terminal, and the drive assembly is activated again to drive the multiple sets of grounding clamps 3 closer to the center of the column 1, thus reducing the clamping space to clamp and fix the cable terminal. When grounding a recessed cable terminal, the drive assembly first reduces the clamping space, and then expands the clamping space when the multiple sets of grounding clamps enter the cable terminal, so that the multiple sets of grounding clamps 3 abut and fix against the inner wall of the cable terminal, thereby achieving grounding of the cable terminal. The method of using a drive assembly in conjunction with multiple sets of grounding clamps 3 to expand or reduce the clamping space can, on the one hand, meet the grounding requirements of different types of cable terminals, making it more versatile, and on the other hand, effectively increase the clamping contact surface, improving the stability of the cable terminal grounding.

[0064] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0065] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0066] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0067] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0068] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0069] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0070] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0071] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0072] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A detachable grounding device for a cable termination, characterized in that include: A column, wherein a column cavity is formed inside the column; Multiple sets of grounding clamps are arranged circumferentially on the outside of the column. A drive assembly, disposed inside the column cavity and connected to multiple sets of grounding clamps, is used to drive the multiple sets of grounding clamps to clamp and fix the cable terminals along positions close to or away from the center of the column.

2. The detachable grounding device of claim 1, wherein, The driving component includes: A circular plate is rotatably disposed inside the cylindrical cavity and is rotatably connected to the inner wall of the cylindrical cavity through one end of a first rotating shaft; Multiple sets of arc-shaped holes are formed circumferentially on the circular plate, with one end of each arc-shaped hole close to the first rotating shaft and the other end close to the edge of the circular plate. Multiple drive plates are arranged circumferentially on one side of the circular plate. One end of the drive plate is provided with a first guide post. The end of the first guide post away from the drive plate extends into the corresponding arc-shaped hole. The other end of the drive plate moves through the post and connects to the corresponding grounding clamp. A rotating assembly is disposed on one side of the circular plate and connected to the other end of the first rotating shaft, for driving the first rotating shaft to rotate.

3. The detachable grounding device of claim 2, wherein, The rotating assembly includes: The second rotating shaft has one end sleeved on the other end of the first rotating shaft and slidably connected to the first rotating shaft axially, and the other end of the second rotating shaft passes through the column and is threadedly connected to the column. The snap-fit ​​post, which is polygonal in shape, is located at the other end of the second rotating shaft.

4. The detachable grounding device of claim 2, wherein, The grounding clamp is L-shaped and is connected to the other end of the corresponding drive plate by a first bolt.

5. The detachable grounding device of claim 3, wherein, Also includes: Multiple sets of grooves are formed on the inner wall of the column cavity, and correspond to the other drive plates except for the two sets of drive plates that are distributed opposite to each other; Multiple sets of guide holes are formed at one end of the column near the snap-fit ​​post, and the guide holes communicate with the corresponding grooves; Multiple sets of second guide posts are respectively disposed inside multiple sets of grooves. One end of the second guide post is connected to the corresponding drive plate, and the other end of the second guide post extends into the corresponding guide hole. An adjustment component is disposed at one end of the column near the snap-fit ​​post, and is used to connect with multiple sets of second guide posts to control the multiple sets of second guide posts to drive the drive plate into the corresponding groove.

6. The detachable grounding device of claim 5, wherein, The adjustment component includes: A ring plate, wherein multiple sets of fixing grooves are provided on one side of the ring plate, and the fixing grooves are engaged with the other end of the second guide post; Two sets of support components are disposed at one end of the column near the snap-fit ​​post and symmetrically distributed on the outer side of the ring plate. The opposite ends of the two sets of support components are connected to the ring plate to drive the ring plate to move away from the column.

7. The detachable grounding device according to claim 6, characterized in that, The support components include: A first fixing plate is disposed on the ring plate; A sliding groove is formed at one end of the column near the snap-fit ​​post, and a sliding plate is slidably disposed inside the sliding groove; A second fixing plate is mounted on the sliding plate; The rotating rod has one end rotatably connected to the first fixed plate and the other end rotatably connected to the second fixed plate; A locking component, disposed inside the slide groove, is used to limit the relative position of the slide plate within the slide groove.

8. The detachable grounding device according to claim 7, characterized in that, The locking component includes: Multiple sets of threaded holes are formed at the inner bottom of the slide groove; The second bolt, with its threads penetrating the slide plate, is used to engage with the threaded hole to secure the slide plate.

9. The detachable grounding device according to claim 5, characterized in that, A third bolt is provided on the grounding clamp corresponding to the two sets of oppositely distributed drive plates for connecting the grounding wire.

10. A grounding method for cable grounding using the detachable grounding device as described in claim 2, characterized in that, include: Determine whether the cable terminal has a convex or concave structure; If it is determined that the cable terminal has an outward convex structure, the rotating assembly is activated to drive the circular plate to rotate, thereby causing multiple sets of driving plates and the corresponding grounding clamps to move away from each other; Drive the column closer to the cable terminal until multiple sets of grounding clamps are fitted onto the outside of the cable terminal; The rotating assembly is activated to drive the circular plate to rotate in the opposite direction, thereby causing multiple sets of grounding clamps to clamp and fix the cable terminal. If it is determined that the cable terminal has a concave structure, the rotating assembly is activated to drive the circular plate to rotate in the opposite direction, so as to drive multiple sets of driving plates and the corresponding grounding clamps to move closer to each other. Drive the column closer to the cable terminal until the multiple sets of grounding clamps are located inside the cable terminal; The rotating assembly is activated to drive the circular plate to rotate, thereby causing multiple sets of grounding clamps to abut and fix the cable terminal.

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