An enhanced ground device for power lines
By designing a grounding device for the auger drill bit and transmission components, the problem of difficult grounding of transmission lines in frozen soil, hard soil layers or rock geology was solved, achieving efficient and stable grounding effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU SHANGYOU ELECTRIC POWER TECH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-03
AI Technical Summary
Existing power transmission line grounding devices are difficult to effectively ground when encountering frozen soil, hard soil layers, or rocky geological conditions, through methods such as ground nail insertion or excavation.
A grounding device comprising a auger bit, a transmission assembly, and a positioning assembly was designed. The auger bit is inserted into the ground by manually turning the handle, and the thread of the auger bit is used to increase stability. The depth is adjusted and fixed by the cooperation of the movable rod and the rotating cylinder.
It improves construction efficiency in hard soil and rock geological conditions, ensures grounding depth and stability, adapts to different geological conditions, and reduces construction difficulty.
Smart Images

Figure CN224458630U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of power transmission line grounding devices, and in particular to an enhanced power transmission line grounding device. Background Technology
[0002] The grounding device of the transmission line is a crucial safety facility in the power system. It is mainly installed at the bottom and around the tower of the transmission line. Its core purpose is to provide a low-impedance, reliable discharge path for fault current, safely conducting it to the ground, thereby protecting personal safety and equipment safety.
[0003] Transmission lines are generally located outdoors and need to be fixed to the ground by pre-burying ground nails. Some are simply inserted into the ground, while others are buried in the ground by excavation. Due to the complex terrain and geology of the outdoor environment, in the case of frozen soil, hard soil layers, and rock crevices, the geology is not only difficult to excavate, but also difficult to directly insert ground nails into the ground.
[0004] Therefore, how to provide a grounding device for enhanced transmission lines is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] One objective of this invention is to provide an enhanced grounding device for power transmission lines. This invention solves the problem that in the prior art, when the grounding terminal is inserted into the ground by inserting ground nails or burying ground nails in the ground by excavation, it is difficult to excavate and insert them into the ground when encountering frozen soil, hard soil layers or rocky geology.
[0006] An enhanced transmission line grounding device according to an embodiment of the present utility model includes a grounding wire and a grounding terminal. The grounding terminal is fixedly connected to the bottom end of the grounding wire, and a grounding insert is rotatably connected to the grounding terminal. A transmission assembly for driving the grounding insert to rotate is provided on the top of the grounding terminal. The grounding insert includes a spiral drill bit for drilling the ground.
[0007] The grounding component also includes a rotating cylinder, a through hole, and a movable rod. The rotating cylinder is rotatably connected to the grounding end. The through hole is opened at the top of the rotating cylinder to connect the top and bottom ends of the rotating cylinder. The movable rod is movably connected inside the through hole, and the auger drill bit is fixedly connected to the bottom end of the movable rod.
[0008] The auger drill bit includes an auger rod and an auger cone. The auger cone is fixedly connected to the bottom end of the auger rod, and the top end of the auger rod is fixedly connected to the bottom end of the movable rod.
[0009] The through hole is a hexagonal hole. The shape and size of the movable rod match the shape and size of the inside of the through hole. A convex ring is provided on the side of the rotating cylinder. An annular groove is opened on the inner wall of the grounding end corresponding to the position of the convex ring. The convex ring is rotatably connected to the inside of the annular groove through a first conical bearing.
[0010] The transmission assembly includes a fixed base, a rotating shaft, a first bevel gear, a second bevel gear, and a turntable. The fixed base is fixedly installed at the top of the docking end near the rotating cylinder. The rotating shaft is rotatably connected to the fixed base. The first bevel gear is fixedly connected to one end face of the rotating shaft. The second bevel gear is fixedly connected to the top of the rotating cylinder and movably sleeved on the surface of the movable rod. The first bevel gear and the second bevel gear mesh with each other. The turntable is fixedly connected to the end of the rotating shaft away from the first bevel gear.
[0011] A rotating handle is fixedly connected to the side of the turntable.
[0012] The movable rod has an annular positioning groove on its side. A positioning component is provided at the top of the docking end corresponding to the position of the movable rod. The positioning component includes a positioning plate, a movable groove, a retaining plate, a first threaded hole, and a positioning bolt. The positioning plate is fixedly connected to the top of the docking end. The movable groove is located on the side of the positioning plate near the movable rod. The retaining plate is movably engaged inside the movable groove. One end of the retaining plate is movably engaged inside the annular positioning groove. The first threaded hole is located at the end of the positioning retaining plate away from the annular positioning groove. The positioning bolt is rotatably connected to the positioning plate, and one end of the positioning bolt is threadedly connected to the first threaded hole. The other end of the positioning bolt extends to the side of the positioning plate away from the movable rod, and a manual knob is fixedly connected to the end of the positioning bolt away from the movable rod.
[0013] The top of the movable rod is provided with a stabilizing kit, which includes a sleeve block, a positioning ring, a second threaded hole, and a fixing bolt. The positioning ring is fixedly sleeved on the surface of the movable rod near the top. The sleeve block is rotatably sleeved on the side of the positioning ring through a second tapered bearing. The sleeve block is movably sleeved on the surface of the grounding wire. The second threaded hole is opened on the side of the sleeve block. The fixing bolt is threaded into the second threaded hole, and one end of the fixing bolt is movably connected to the surface of the grounding wire.
[0014] A protective cover is provided at the top of the grounding terminal corresponding to the position of the transmission component, and is fitted onto the surface of the transmission component.
[0015] The beneficial effects of this utility model are:
[0016] The auger bit rotates via a transmission component when the handle is manually turned, converting manual rotation into powerful torque. This makes it easier to insert the auger bit into the ground, significantly reducing the difficulty of drilling into hard soil and improving construction efficiency. Furthermore, the threads on the surface of the auger bit increase its stability when inserted into the ground. This solves the problem in existing technologies where grounding terminals are inserted into the ground via ground nails or buried in the ground through excavation, making it difficult to excavate and insert them into the ground when encountering frozen soil, hard soil layers, or rocky geology.
[0017] The sliding engagement between the movable rod and the through hole on the rotating cylinder allows the auger bit to be raised and lowered, enabling flexible adjustment of the grounding depth to adapt to different geological conditions and ensure that the grounding resistance meets the standards. The positioning component is embedded into the annular positioning groove of the movable rod through a clamping plate and locked with the positioning bolt to firmly fix the drilling depth. This operation changes the height of the auger bit and the length of the entire grounding wire, avoiding the problem of a short grounding wire when the surface soil is loose and it is necessary to insert it deeper into the ground. Attached Figure Description
[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an enhanced power transmission line grounding device proposed in this utility model.
[0020] Figure 2 This is a three-dimensional cross-sectional structural diagram of the grounding wire, grounding plug and transmission component positions in an enhanced power transmission line grounding device proposed in this utility model.
[0021] Figure 3 This is a cross-sectional three-dimensional structural diagram of the positioning component in a grounding device for power transmission lines proposed in this utility model.
[0022] Figure 4 This is a three-dimensional structural diagram of the movable rod and auger drill bit in an enhanced power transmission line grounding device proposed in this utility model.
[0023] Figure 5 This is a three-dimensional cross-sectional view of another position of the transmission component in a grounding device for enhanced power transmission lines proposed in this utility model.
[0024] Figure 6 This is a three-dimensional cross-sectional structural diagram of the movable rod and through hole positions in an enhanced power transmission line grounding device proposed in this utility model.
[0025] The attached diagram shows: 1. Grounding wire; 2. Grounding terminal; 3. Grounding insert; 4. Transmission assembly; 5. Spiral drill bit; 6. Rotating cylinder; 7. Through hole; 8. Movable rod; 9. Spiral rod body; 10. Spiral cone body; 11. Fixed seat; 12. Rotating shaft; 13. First bevel gear; 14. Second bevel gear; 15. Turntable; 16. Annular positioning groove; 17. Positioning plate; 18. Movable groove; 19. Clamping plate; 20. First threaded hole; 21. Positioning bolt; 22. Sleeve block; 23. Positioning ring; 24. Second threaded hole; 25. Fixing bolt; 26. Protective cover. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0027] refer to Figure 1-6 In this embodiment, a grounding wire 1 and a grounding terminal 2 are included. The grounding terminal 2 is fixedly connected to the bottom end of the grounding wire 1. A grounding insert 3 is rotatably connected to the grounding terminal 2. The grounding insert 3 also includes a rotating cylinder 6, a through hole 7, and a movable rod 8. The rotating cylinder 6 is rotatably connected to the grounding terminal 2. The through hole 7 is opened at the top of the rotating cylinder 6 to connect the top and bottom ends of the rotating cylinder 6. The movable rod 8 is movably connected inside the through hole 7.
[0028] In practice, the through hole 7 is used to limit the movement of the movable rod 8, allowing the movable rod 8 to move up and down along the through hole 7.
[0029] refer to Figure 1-6 In this embodiment, the through hole 7 is a hexagonal hole, the shape and size of the movable rod 8 match the shape and size of the inside of the through hole 7, a convex ring is provided on the side of the rotating cylinder 6, and an annular groove is provided on the inner wall of the grounding end 2 at the position corresponding to the convex ring. The convex ring is rotatably connected to the inside of the annular groove through the first conical bearing.
[0030] In specific implementation, the through hole 7 is a hexagonal hole, mainly to prevent the movable rod 8 from rotating on its own. This is so that when the through hole 7 rotates, it drives the movable rod 8 to rotate as well, achieving simultaneous lifting and lowering of the movable rod 8 and synchronous rotation of the rotating cylinder 6. The convex ring and annular groove are as follows... Figure 2 As shown, this is to improve the connection stability between the rotating cylinder 6 and the grounding terminal 2, and to prevent misalignment between the rotating cylinder 6 and the grounding terminal 2 during operation.
[0031] refer to Figure 1-6In this embodiment, an annular positioning groove 16 is provided on the side of the movable rod 8, and a positioning component is provided at the top of the docking end corresponding to the position of the movable rod 8. The positioning component includes a positioning plate 17, a movable groove 18, a retaining plate 19, a first threaded hole 20, and a positioning bolt 21. The positioning plate 17 is fixedly connected to the top of the docking end. The movable groove 18 is opened on the side of the positioning plate 17 close to the movable rod 8. The retaining plate 19 is movably engaged inside the movable groove 18. One end of the retaining plate 19 is movably engaged inside the annular positioning groove 16. The first threaded hole 20 is opened at the end of the retaining plate 19 away from the annular positioning groove 16. The positioning bolt 21 is rotatably connected to the positioning plate 17, and one end of the positioning bolt 21 is threadedly connected to the first threaded hole 20. The other end of the positioning bolt 21 extends to the side of the positioning plate 17 away from the movable rod 8, and a manual knob is fixedly connected to the end of the positioning bolt 21 away from the movable rod 8.
[0032] In practice, turning the manual knob will cause the positioning bolt 21 to rotate. When the positioning bolt 21 rotates, it will drive the clamping plate 19 to move through the first threaded hole 20, so that the clamping plate 19 moves away from the annular positioning groove 16. This releases the positioning restriction on the movable rod 8, allowing the movable rod 8 to move freely.
[0033] refer to Figure 1-6 In this embodiment, a stabilizing kit is provided at the top of the movable rod 8. The stabilizing kit includes a sleeve block 22, a positioning ring 23, a second threaded hole 24, and a fixing bolt 25. The positioning ring 23 is fixedly sleeved on the surface of the movable rod 8 near the top. The sleeve block 22 is rotatably sleeved on the side of the positioning ring 23 through a second tapered bearing. The sleeve block 22 is movably sleeved on the surface of the grounding wire 1. The second threaded hole 24 is opened on the side of the sleeve block 22. The fixing bolt 25 is threaded into the inside of the second threaded hole 24, and one end of the fixing bolt 25 is movably connected to the surface of the grounding wire 1.
[0034] In practice, before the positioning bolt 21 moves, the fixing bolt 25 needs to be rotated to separate it from the grounding wire 1. In this way, the sleeve block 22 can move on the surface of the grounding wire 1. The purpose of the sleeve block 22 is to improve the stability of the movable rod 8 and prevent the movable rod 8 from bending.
[0035] refer to Figure 1-6In this embodiment, the top of the grounding terminal 2 is provided with a transmission assembly 4 that drives the grounding plug 3 to rotate. The top of the grounding terminal 2 is provided with a protective cover 26 that is sleeved on the surface of the transmission assembly 4. The transmission assembly 4 includes a fixed base 11, a rotating shaft 12, a first bevel gear 13, a second bevel gear 14 and a turntable 15. The fixed base 11 is fixedly installed on the top of the docking terminal near the rotating cylinder 6. The rotating shaft 12 is rotatably connected to the fixed base 11. The first bevel gear 13 is fixedly connected to one end face of the rotating shaft 12. The second bevel gear 14 is fixedly connected to the top of the rotating cylinder 6 and is movably sleeved on the surface of the movable rod 8. The first bevel gear 13 and the second bevel gear 14 mesh with each other. The turntable 15 is fixedly connected to the end of the rotating shaft 12 away from the first bevel gear 13. A rotating handle is fixedly connected to the side of the turntable 15. The rotating handle is mainly for convenient manual control of the rotation of the turntable 15.
[0036] In practice, the manual force is converted into the rotational force of the auger bit 5. When the auger bit 5 is being operated, a downward pressure needs to be applied to the terminal to ensure that the auger bit 5 can be stably inserted into the hard soil.
[0037] refer to Figure 1-6 In this embodiment, the ground insertion component 3 includes a spiral drill bit 5 for drilling. The spiral drill bit 5 is fixedly connected to the bottom end of the movable rod 8. The spiral drill bit 5 includes a spiral rod body 9 and a spiral cone body 10. The spiral cone body 10 is fixedly connected to the bottom end of the spiral rod body 9, and the top end of the spiral rod body 9 is fixedly connected to the bottom end of the movable rod 8.
[0038] In practice, if encountering hard geological conditions such as rocks, the drill bit 5 is placed in a crevice, and the spiral cone 10 at the bottom of the drill bit 5 is inserted into the crevice. The drill bit 5 is then rotated to make the spiral cone 10 stably inserted into the crevice. The spiral blades on the surface of the drill bit 5 improve the adhesion to the crevice, thereby improving the connection stability of the drill bit 5.
[0039] The working principle of this utility model is as follows:
[0040] First, rotate the positioning bolt 21 as needed. The rotation of the positioning bolt 21, through the first threaded hole 20, causes the clamping plate 19 to move inside the movable groove 18, separating the clamping plate 19 from the annular positioning groove 16. Then, move the movable rod 8 to raise and lower the auger bit 5. The raising and lowering of the auger bit 5 changes its position, thus adjusting its position. This increases the length of the entire grounding wire 1 and adjusts the depth of the auger bit 5 inserted into the ground. It should be noted that during adjustment, the fixing bolt 25 also needs to be loosened to separate it from the grounding wire 1. This allows the sleeve block 22 to move along the surface of the grounding wire 1. After the position of the auger bit 5 is adjusted, rotate the positioning bolt 21 in the opposite direction, causing it to push the clamping plate 19 into the corresponding annular positioning groove 16, thus adjusting the height of the movable rod 8. The height of the auger bit 5 is determined by positioning the movable rod 8. This positions the adjusted auger bit 5. Then, the handle is rotated, which in turn rotates the turntable 15 and drives the first bevel gear 13. The first bevel gear 13 then rotates the second bevel gear 14, which in turn rotates the rotating cylinder 6. The rotating cylinder 6 then rotates the movable rod 8, which in turn rotates the auger bit 5. When the auger bit 5 rotates, the tip of the auger cone must be inserted into the ground, and then downward pressure is applied to the auger bit 5. This ensures the auger bit 5 is stably inserted into the ground, reducing the difficulty of drilling into hard soil. If encountering a rock layer, the auger bit 5 is inserted into the cracks in the rock, thus ensuring stable insertion into the ground.
[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A device for enhancing the grounding of transmission lines, characterized in that, It includes a grounding wire (1) and a grounding terminal (2). The grounding terminal (2) is fixedly connected to the bottom end of the grounding wire (1). A grounding plug (3) is rotatably connected to the grounding terminal (2). A transmission assembly (4) that drives the grounding plug (3) to rotate is provided on the top of the grounding terminal (2). The ground insertion component (3) includes an auger bit (5) for drilling.
2. The enhanced transmission line grounding device according to claim 1, characterized in that, The grounding component (3) also includes a rotating cylinder (6), a through hole (7), and a movable rod (8). The rotating cylinder (6) is rotatably connected to the grounding terminal (2). The through hole (7) is opened at the top of the rotating cylinder (6) to connect the top and bottom ends of the rotating cylinder (6). The movable rod (8) is movably connected inside the through hole (7). The auger drill bit (5) is fixedly connected to the bottom end of the movable rod (8).
3. The enhanced transmission line grounding device according to claim 2, characterized in that, The auger drill bit (5) includes an auger rod (9) and an auger cone (10). The auger cone (10) is fixedly connected to the bottom end of the auger rod (9), and the top end of the auger rod (9) is fixedly connected to the bottom end of the movable rod (8).
4. The enhanced transmission line grounding device according to claim 3, characterized in that, The through hole (7) is a "hexagonal" hole. The shape and size of the movable rod (8) match the shape and size of the inside of the through hole (7). A convex ring is provided on the side of the rotating cylinder (6). An annular groove is provided on the inner wall of the grounding end (2) at the position corresponding to the convex ring. The convex ring is rotatably connected to the inside of the annular groove through the first conical bearing.
5. The enhanced transmission line grounding device according to claim 4, characterized in that, The transmission assembly (4) includes a fixed seat (11), a rotating shaft (12), a first bevel gear (13), a second bevel gear (14), and a turntable (15). The fixed seat (11) is fixedly installed at the top of the docking end near the rotating cylinder (6). The rotating shaft (12) is rotatably connected to the fixed seat (11). The first bevel gear (13) is fixedly connected to one end face of the rotating shaft (12). The second bevel gear (14) is fixedly connected to the top of the rotating cylinder (6) and movably sleeved on the surface of the movable rod (8). The first bevel gear (13) and the second bevel gear (14) mesh with each other. The turntable (15) is fixedly connected to the end of the rotating shaft (12) away from the first bevel gear (13).
6. The enhanced transmission line grounding device according to claim 5, characterized in that, A rotating handle is fixedly connected to the side of the turntable (15).
7. The enhanced transmission line grounding device according to claim 6, characterized in that, The movable rod (8) has an annular positioning groove (16) on its side. A positioning assembly is provided at the top of the mating end corresponding to the position of the movable rod (8). The positioning assembly includes a positioning plate (17), a movable groove (18), a retaining plate (19), a first threaded hole (20), and a positioning bolt (21). The positioning plate (17) is fixedly connected to the top of the mating end. The movable groove (18) is opened on the side of the positioning plate (17) near the movable rod (8). The retaining plate (19) is movably engaged inside the movable groove (18). One end of (19) is movably engaged inside the annular positioning groove (16). The first threaded hole (20) is opened at the end of the positioning plate (19) away from the annular positioning groove (16). The positioning bolt (21) is rotatably connected to the positioning plate (17), and one end of the positioning bolt (21) is threadedly connected to the first threaded hole (20). The other end of the positioning bolt (21) extends to the side of the positioning plate (17) away from the movable rod (8), and a manual knob is fixedly connected to the end of the positioning bolt (21) away from the movable rod (8).
8. The enhanced transmission line grounding device according to claim 7, characterized in that, The top of the movable rod (8) is provided with a stabilizing kit, which includes a sleeve block (22), a positioning ring (23), a second threaded hole (24), and a fixing bolt (25). The positioning ring (23) is fixedly sleeved on the surface of the movable rod (8) near the top. The sleeve block (22) is rotatably sleeved on the side of the positioning ring (23) through a second tapered bearing. The sleeve block (22) is movably sleeved on the surface of the grounding wire (1). The second threaded hole (24) is opened on the side of the sleeve block (22). The fixing bolt (25) is threaded into the inside of the second threaded hole (24), and one end of the fixing bolt (25) is movably connected to the surface of the grounding wire (1).
9. A grounding device for enhanced transmission lines according to claim 8, characterized in that, A protective cover (26) is provided on the surface of the transmission component (4) at the top of the grounding terminal (2) corresponding to the position of the transmission component (4).