Telescopic grounding wire rod

Abstract

The utility model relates to the technical field of electric power overhaul, and discloses a telescopic grounding wire rod which comprises an outer cylinder, a motor is arranged on the rear side of the lower middle portion of the outer wall of the outer cylinder, the output end of the motor is fixedly connected with a worm, the left side of the outer wall of the worm is connected with a worm gear in a meshed mode, and the worm gear is rotationally connected to the lower middle portion of the inner wall of the outer cylinder. A threaded rod is fixedly connected to the middle of the top wall of the worm gear, a threaded cylinder is in threaded connection with the outer wall of the threaded rod, sliding blocks are fixedly connected to the periphery of the outer wall of the threaded cylinder, and sliding grooves are formed in the periphery of the inner wall of the outer cylinder. According to the telescopic grounding wire rod, the sliding block on the threaded cylinder is pushed to move upwards along the sliding groove, the sliding of the sliding block limits the rotation of the threaded cylinder, and the threaded cylinder can only move linearly, so that the rod head is driven to extend out of the outer cylinder, and the telescopic function of the grounding wire rod is realized to adapt to different use scenes and operation requirements; the thread of the threaded rod avoids the problem that the threaded barrel is loosened in the using process.

Description

A retractable grounding rod Technical Field

[0001] This utility model relates to the field of power maintenance technology, and in particular to a retractable grounding rod. Background Technology

[0002] A grounding rod is a tool used to reliably ground electrical equipment or lines. It is made of a metal material with good conductivity, such as copper and aluminum, and mainly consists of a rod body, a connecting device, and a grounding end. In power systems, temporary grounding wires are important equipment to ensure the safety of maintenance personnel and are used to prevent electric shock accidents caused by accidental power supply or induced current.

[0003] A search revealed Chinese patent publication number CN219979837U, which discloses a grounding rod, including an insulating operating rod and a clamp disposed at the top of the insulating operating rod. The clamp includes a hook and a slider. The insulating operating rod has a hollow internal structure, with a rotating rod rotatably connected to its bottom. A lead screw is connected to the bottom of the slider, with the bottom end of the lead screw extending into a sleeve. An elastic transmission shaft is provided inside the insulating operating rod, with its bottom connected to the rotating rod and its top threadedly connected to the lead screw. Rotating the elastic transmission shaft drives the slider to move up and down. The clamp is connected to the insulating operating rod via a rotating assembly, which allows the angle of the clamp to be changed, making it suitable not only for conventional wiring but also for unconventional wiring such as guy wires, thus increasing its flexibility. The grounding rod can firmly clamp the conductor, ensuring tight contact between the conductor and the grounding rod and preventing loosening or loosening. The non-linear transmission achieved through the elastic transmission shaft is more suitable for operation in confined spaces, but existing grounding rods suffer from the problem of non-adjustable or inconvenient length adjustment. Summary of the Invention

[0004] To overcome the above shortcomings, this utility model provides a retractable grounding rod, which aims to improve the problem of inconvenient adjustment of the length of the grounding rod in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a retractable grounding rod, comprising an outer cylinder, a motor disposed on the lower rear side of the outer wall of the outer cylinder, a worm gear fixedly connected to the output end of the motor, a worm wheel meshingly connected to the left side of the outer wall of the worm gear, the worm wheel being rotatably connected to the lower inner wall of the outer cylinder, a threaded rod fixedly connected to the middle of the top wall of the worm wheel, a threaded cylinder threadedly connected to the outer wall of the threaded rod, sliders fixedly connected to all four sides of the outer wall of the threaded cylinder, grooves formed on all four sides of the inner wall of the outer cylinder, the sliders slidingly connected to the grooves, a rod head fixedly connected to the top of the threaded cylinder, a connector lug disposed on the left side of the outer wall of the rod head, an oxygen-free copper wire fixedly connected to the bottom wall of the connector lug, and a fixing mechanism disposed at the end of the oxygen-free copper wire, the fixing mechanism being used to fix it in a specific position to prevent loosening.

[0006] The above technical solution works as follows: When the rod head needs to extend, the motor is activated, driving the worm gear to rotate. This, in turn, causes the worm gear to rotate the worm wheel, which in turn rotates the threaded rod at the top. The rotation of the threaded rod then moves the slider on the threaded cylinder upwards along the groove inside the outer cylinder. Because the slider slides within the groove, the threaded cylinder is restricted to linear motion, preventing it from rotating with the threaded rod. Ultimately, the threaded cylinder pushes the rod head out of the outer cylinder, achieving the telescopic function of the grounding rod to meet different usage scenarios and operational needs. A fixing mechanism is provided at the end of the oxygen-free copper wire to secure it in a specific position and prevent loosening.

[0007] As a further description of the above technical solution:

[0008] The fixing mechanism includes a base plate, which is fixedly connected to the end of an oxygen-free copper wire. A fixing block is fixedly connected to the left side of the top wall of the base plate. A rotating shaft is rotatably connected to the front side of the outer wall of the fixing block. A connecting block is rotatably connected to the outer wall of the rotating shaft. A pressure column is slidably connected to the right side of the top wall of the connecting block. Nuts are threaded to the upper and lower ends of the outer wall of the pressure column. A connecting block is rotatably connected to the outer wall of the connecting block. A rotating shaft is rotatably connected to the front side of the outer wall of the connecting block. A rotating shaft is rotatably connected to the lower middle part of the right side of the front side of the fixing block. A handle is rotatably connected to the outer walls of both the rotating shaft and the rotating shaft.

[0009] The above technical solution involves operating a handle that rotates on a second rotating shaft. Simultaneously, the handle drives a second connecting block located on a third rotating shaft to move. The second connecting block then pushes a first connecting block to rotate around a first rotating shaft connected to a fixed block. The pressure column on the right side of the first connecting block moves downwards. The nut on the pressure column can be adjusted to change the clamping degree of the pressure column. The pressure column approaches and presses against the object to be fixed. The pressure applied by the pressure column can be controlled by adjusting the rotation angle of the handle to adapt to different fixing requirements.

[0010] As a further description of the above technical solution:

[0011] A protective spring is installed at the top of the oxygen-free copper wire.

[0012] Through the above technical solution, the protective spring is used to prevent the oxygen-free copper wire from breaking or being damaged due to excessive force, thereby protecting the electrical connection performance and mechanical properties of the oxygen-free copper wire.

[0013] As a further description of the above technical solution:

[0014] The upper and lower ends of the left side of the outer wall of the connector nose are threaded with bolts.

[0015] The above technical solution involves using bolts to secure the wiring lugs to the head of the rod.

[0016] As a further description of the above technical solution:

[0017] An insulated handle is fixedly connected to the bottom wall of the outer cylinder.

[0018] The above technical solution provides an insulated grip for the operator.

[0019] As a further description of the above technical solution:

[0020] A controller is fixedly connected to the lower middle part of the front side of the outer wall of the outer cylinder, and multiple buttons are equidistantly installed on the front side of the outer wall of the controller.

[0021] The above technical solution involves using a controller to adjust the height of the rod head, and buttons to operate the controller.

[0022] As a further description of the above technical solution:

[0023] The outer wall of the handle is fitted with a protective cover.

[0024] Through the above technical solution, the protective cover reduces the pressure and fatigue on the hands when using the handle for a long time, and also serves as insulation to prevent electric shock to the operator and ensure personal safety.

[0025] As a further description of the above technical solution:

[0026] The bottom wall of the motor is fixedly connected to a fixing bracket, which is fixedly connected to the lower middle part of the rear side of the outer wall of the outer cylinder.

[0027] The above technical solution involves using a mounting bracket to fix the motor to the outer cylinder.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the motor drives the worm to rotate, which in turn causes the worm wheel and the threaded rod to rotate, pushing the slider on the threaded cylinder to move upward along the groove. The sliding of the slider restricts the rotation of the threaded cylinder to only linear motion, thereby causing the rod head to extend out of the outer cylinder, realizing the telescopic function of the grounding rod to adapt to different usage scenarios and operational needs. The thread of the threaded rod avoids the problem of the threaded cylinder becoming loose during use.

[0030] 2. In this utility model, when the handle is rotated, the handle rotates on the second rotating shaft, which drives the second connecting block at the third rotating shaft to move, causing the first connecting block to rotate around the first rotating shaft. The right pressure column of the first connecting block moves down, and the upper and lower nuts of the pressure column can adjust the clamping degree, so that it gets close to and presses the object to be fixed. The pressure can be controlled by adjusting the rotation angle of the handle to meet different fixing requirements. Attached Figure Description

[0031] Figure 1 is a front view of a retractable grounding rod proposed in this utility model;

[0032] Figure 2 is a perspective view of a retractable grounding rod proposed in this utility model;

[0033] Figure 3 is a rear view of a retractable grounding rod proposed in this utility model;

[0034] Figure 4 is a partial structural cross-sectional view of a retractable grounding rod proposed in this utility model;

[0035] Figure 5 is a schematic diagram of the fixing mechanism of a retractable grounding rod proposed in this utility model.

[0036] Legend:

[0037] 1. Outer cylinder; 2. Fixing mechanism; 201. Base plate; 202. Fixing block; 203. Rotating shaft one; 204. Connecting block one; 205. Pressure column; 206. Nut; 207. Connecting block two; 208. Rotating shaft two; 209. Handle; 210. Rotating shaft three; 3. Motor; 4. Worm gear; 5. Worm wheel; 6. Threaded rod; 7. Threaded cylinder; 8. Slider; 9. Slide groove; 10. Rod head; 11. Wiring lug; 12. Oxygen-free copper wire; 13. Protective spring; 14. Bolt; 15. Insulated handle; 16. Controller; 17. Button; 18. Protective sleeve; 19. Fixing bracket. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Referring to Figures 2, 3, and 4, one embodiment of this utility model is provided: a retractable grounding rod, including an outer cylinder 1. A motor 3 is installed on the lower rear side of the outer wall of the outer cylinder 1. A worm gear 4 is fixedly connected to the output end of the motor 3, driving the worm gear 4 to rotate. A worm wheel 5 is meshed with the left side of the outer wall of the worm gear 4. The worm gear 4 rotates and the worm wheel 5 rotates. The worm wheel 5 is rotatably connected to the lower inner wall of the outer cylinder 1. A threaded rod 6 is fixedly connected to the middle of the top wall of the worm wheel 5, driving the threaded rod 6 at the top to rotate. A threaded cylinder 7 is threadedly connected to the outer wall of the threaded rod 6. Slider blocks 8 are fixedly connected to all four sides of the outer wall of the threaded cylinder 7. Sliding grooves 9 are opened on all four sides of the inner wall of the outer cylinder 1. The sliders 8 are slidably connected to the sliding grooves 9. The threaded rod 6 drives the sliders 8 on the threaded cylinder 7 to move upward along the sliding grooves 9 inside the outer cylinder 1. A rod head 10 is fixedly connected to the top of the threaded cylinder 7. 7. Push the rod head 10 out of the outer cylinder 1. A wiring lug 11 is provided on the left side of the outer wall of the rod head 10. The wiring lug 11 connects the oxygen-free copper wire 12 to the rod head 10. The bottom wall of the wiring lug 11 is fixedly connected to the oxygen-free copper wire 12. The oxygen-free copper wire 12 is used to transmit current. The end of the oxygen-free copper wire 12 is provided with a fixing mechanism 2. The fixing mechanism 2 is used to fix it in a specific position to prevent loosening. The bottom wall of the motor 3 is fixedly connected to the fixing bracket 19. The lower front part of the outer wall of the outer cylinder 1 is fixedly connected to the controller 16. The controller 16 is used to adjust the height of the rod head 10. Multiple buttons 17 are equidistantly installed on the front side of the outer wall of the controller 16. The buttons 17 are used to operate the controller 16. The bottom wall of the motor 3 is fixedly connected to the fixing bracket 19. The fixing bracket 19 is fixedly connected to the lower rear part of the outer wall of the outer cylinder 1. The fixing bracket 19 is used to fix the motor 3 on the outer cylinder 1.

[0040] Specifically, when the rod head 10 needs to extend, the motor 3 should be started. The motor 3 drives the worm gear 4 to rotate, which in turn causes the worm wheel 5 to rotate. The rotation of the worm wheel 5 drives the threaded rod 6 located at the top to rotate. The rotation of the threaded rod 6 causes the slider 8 on the threaded cylinder 7 to move upward along the groove 9 inside the outer cylinder 1. Since the movement of the slider 8 in the groove 9 is restricted, the threaded cylinder 7 can only move in a straight line and will not rotate together with the threaded rod 6. Finally, the threaded cylinder 7 pushes the rod head 10 to extend from the outer cylinder 1, realizing the telescopic function of the grounding rod to meet different usage scenarios and operational needs. The end of the oxygen-free copper wire 12 is provided with a fixing mechanism 2, which is used to fix it in a specific position to prevent loosening. The controller 16 is used to adjust the height of the rod head 10. The button 17 is used to operate the controller 16. The fixing bracket 19 is used to fix the motor 3 to the outer cylinder 1.

[0041] Referring to Figures 2 and 5, the fixing mechanism 2 includes a base plate 201, which is fixedly connected to the end of the oxygen-free copper wire 12. A fixing block 202 is fixedly connected to the left side of the top wall of the base plate 201. A rotating shaft 203 is rotatably connected to the front side of the outer wall of the fixing block 202. A connecting block 204 is rotatably connected to the outer wall of the rotating shaft 203. The rotating shaft 203 is used to rotate the rotating shaft 203. A pressure column 205 is slidably connected to the right side of the top wall of the connecting block 204. Nuts 206 are threadedly connected to the upper and lower ends of the outer wall of the pressure column 205. The nuts 206 on the pressure column 205 can be adjusted to change the clamping degree of the pressure column 205. The wall is rotatably connected to a second connecting block 207, which in turn pushes a first connecting block 204 to rotate around a first rotating shaft 203 connected to a fixed block 202. A second rotating shaft 208 is rotatably connected to the front side of the outer wall of the second connecting block 207. A third rotating shaft 210 is rotatably connected to the lower right side of the front side of the outer wall of the fixed block 202. A handle 209 is rotatably connected to the outer walls of both the third rotating shaft 210 and the second rotating shaft 208. A protective sleeve 18 is installed on the outer wall of the handle 209. The protective sleeve 18 is used to reduce the pressure and fatigue on the hands when using the handle 209 for a long time, and also serves as insulation to prevent electric shock to the operator and ensure personal safety.

[0042] Specifically, the operating handle 209 is rotated on the second rotating shaft 208, which in turn drives the second connecting block 207 on the third rotating shaft 210 to move. The second connecting block 207 causes the first connecting block 204 to rotate around the first rotating shaft 203 connected to the fixed block 202. The pressure column 205 on the right side of the first connecting block 204 moves downward. The nut 206 on the pressure column 205 can adjust the clamping degree of the pressure column 205. The pressure column 205 approaches and presses against the object to be fixed. The pressure of the pressure column 205 can be controlled by adjusting the rotation angle of the handle 209, thereby meeting different fixing requirements. The protective sleeve 18 is used to reduce the pressure and fatigue on the hands when using the handle 209 for a long time. It can also play an insulating role to prevent the operator from being electrocuted and ensure personal safety.

[0043] Referring to Figures 1 and 2, a protective spring 13 is installed at the top of the oxygen-free copper wire 12. The protective spring 13 is used to prevent the oxygen-free copper wire 12 from breaking or being damaged due to excessive force, thereby protecting the electrical connection performance and mechanical properties of the oxygen-free copper wire 12. Bolts 14 are threaded to the upper and lower ends of the left side of the outer wall of the wiring lug 11. The bolts 14 are used to fix the wiring lug 11 to the rod head 10. An insulating handle 15 is fixedly connected to the bottom wall of the outer cylinder 1. The insulating handle 15 is used to provide an insulating grip for the operator.

[0044] Specifically, the protective spring 13 is used to prevent the oxygen-free copper wire 12 from breaking or being damaged due to excessive force, thereby protecting the electrical connection performance and mechanical properties of the oxygen-free copper wire 12. The bolt 14 is used to fix the wiring lug 11 to the rod head 10. The insulated handle 15 is used to provide an insulated grip for the operator.

[0045] Working principle: When the rod head 10 needs to be extended, the motor 3 is started. The motor 3 drives the worm 4 to rotate. The worm 4 rotates and the worm wheel 5 rotates. The worm wheel 5 drives the threaded rod 6 at the top to rotate. The threaded rod 6 drives the slider 8 on the threaded cylinder 7 to slide upward in the groove 9 around the outer cylinder 1. Because the slider 8 slides in the groove 9, the threaded cylinder 7 is restricted to linear motion and will not rotate with the threaded rod 6. The threaded cylinder 7 drives the rod head 10 to extend out of the outer cylinder 1, thus realizing the retractable function of the grounding rod to adapt to different usage scenarios and operation requirements.

[0046] Rotating handle 209 causes it to rotate on shaft 208. Simultaneously, handle 209 drives connecting block 207 on shaft 3 210 to move. Connecting block 207 causes connecting block 1 204 to rotate around shaft 1 203 connected to fixing block 202. The pressure column 205 on the right side of connecting block 1 204 moves downward. Nuts 206 on the upper and lower sides of pressure column 205 can adjust the clamping degree of pressure column 205. Pressure column 205 approaches and presses against the object to be fixed. The pressure of pressure column 205 can be controlled by adjusting the rotation angle of handle 209, thereby meeting different fixing requirements.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A retractable grounding rod, comprising an outer cylinder (1), characterized in that: A motor (3) is provided on the lower rear side of the outer wall of the outer cylinder (1). A worm gear (4) is fixedly connected to the output end of the motor (3). A worm wheel (5) is meshed on the left side of the outer wall of the worm gear (4). The worm wheel (5) is rotatably connected to the lower part of the inner wall of the outer cylinder (1). A threaded rod (6) is fixedly connected to the middle of the top wall of the worm wheel (5). A threaded cylinder (7) is threadedly connected to the outer wall of the threaded rod (6). A slider (8) is fixedly connected to the outer wall of the threaded cylinder (7). A sliding groove (9) is opened on the inner wall of the outer cylinder (1). The slider (8) is slidably connected to the sliding groove (9). A rod head (10) is fixedly connected to the top of the threaded cylinder (7). A wiring lug (11) is provided on the left side of the outer wall of the rod head (10). An oxygen-free copper wire (12) is fixedly connected to the bottom wall of the wiring lug (11). A fixing mechanism (2) is provided at the end of the oxygen-free copper wire (12). The fixing mechanism (2) is used to fix it in a specific position to prevent loosening.

2. The retractable grounding rod according to claim 1, characterized in that: The fixing mechanism (2) includes a base plate (201), which is fixedly connected to the end of the oxygen-free copper wire (12). A fixing block (202) is fixedly connected to the left side of the top wall of the base plate (201). A rotating shaft (203) is rotatably connected to the front side of the outer wall of the fixing block (202). A connecting block (204) is rotatably connected to the outer wall of the rotating shaft (203). A pressure column (205) is slidably connected to the right side of the top wall of the connecting block (204). The upper and lower ends of the outer wall of the pressure column (205) are threaded with nuts (206). The outer wall of the first connecting block (204) is rotatably connected to the second connecting block (207). The front side of the outer wall of the second connecting block (207) is rotatably connected to the second rotating shaft (208). The lower right side of the front side of the outer wall of the fixed block (202) is rotatably connected to the third rotating shaft (210). The outer walls of the third rotating shaft (210) and the second rotating shaft (208) are both rotatably connected to handles (209).

3. A retractable ground line rod according to claim 1, wherein: A protective spring (13) is installed at the top of the oxygen-free copper wire (12).

4. The retractable grounding rod according to claim 1, characterized in that: The upper and lower ends of the left side of the outer wall of the wiring lug (11) are threaded with bolts (14).

5. A retractable grounding rod according to claim 1, characterized in that: An insulated handle (15) is fixedly connected to the bottom wall of the outer cylinder (1).

6. A retractable grounding rod according to claim 1, characterized in that: A controller (16) is fixedly connected to the lower middle part of the front side of the outer wall of the outer cylinder (1), and multiple buttons (17) are equidistantly installed on the front side of the outer wall of the controller (16).

7. A retractable ground line rod according to claim 2, wherein: The outer wall of the handle (209) is fitted with a protective cover (18).

8. A retractable ground line rod according to claim 1, wherein: The bottom wall of the motor (3) is fixedly connected to a fixing frame (19), which is fixedly connected to the lower middle part of the rear side of the outer wall of the outer cylinder (1).

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