Distribution line grounding device

Abstract

The invention discloses a distribution line grounding device which comprises a center shaft, a fixing clamp is arranged at the top of the center shaft, a side plate is fixedly connected to the right end of the fixing clamp, a hanging ring is installed at the top of the side plate, a circular distribution line groove is formed between the fixing clamp and the hanging ring, a U-shaped groove is formed in the bottom of the side plate, and a rotating shaft is installed in an inner cavity of the U-shaped groove. Two ends of an outer ring of the rotating shaft are sleeved with fluted discs, an outer ring of the central shaft is sleeved with a drawing rod, an electroscope is arranged in front of the drawing rod, a tightening shifting piece is arranged on the right side surface of the drawing rod, and a releasing shifting piece is arranged on the left side surface of the drawing rod. And the pull rod is pulled for multiple times to wind and tighten the suspension wire, so that the problems that the suspension wire of the grounding device in the prior art is too loose and is easily influenced by the external environment to shake, an electric shock accident occurs, and the construction safety is influenced are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable grounding, in particular to a grounding device for a power distribution line. Background Art

[0002] With the continuous improvement of my country's infrastructure, the construction and promotion of power facilities have also been greatly improved. Even in daily life, various power facilities can be seen everywhere. The most common ones are the installed distribution lines, which greatly meet people's daily use.

[0003] During the use of the installed distribution lines, it is not enough to simply install them. Regular line operation and maintenance work is also required, and line inspection work is also required when a fault occurs. When inspecting the distribution lines, in order to ensure the personal safety of the maintenance personnel, hanging the ground wire is a safety barrier to protect the maintenance personnel. It is the lifeline of power employees and can prevent sudden damage to the human body caused by electricity during work.

[0004] The grounding device used for distribution lines has a relatively simple structure. Maintenance personnel directly climb onto the power line rack and hang multiple grounding wires on the distribution lines. The long hanging wires are in a suspended state and in contact with the ground. This grounding device has many defects and problems during use:

[0005] 1. The long suspended wires are suspended between the ground and the distribution lines and are easily affected by wind, causing the wires to shake and sway. This shaking not only makes it easy for multiple suspended wires to touch each other, creating the risk of arcing or short circuits, but also during the maintenance process, maintenance personnel located next to the grounding device are prone to accidentally touching these shaking wires, posing a serious safety hazard. Secondly, the hanging state of long wires is difficult to maintain stability. Especially in severe weather conditions, the impact of wind on the wires is more significant, further increasing the unsafe factors of the operating environment. In addition, due to the lack of effective fixing measures, the part of the suspended grounding wire between the ground and the distribution line may be worn or damaged due to contact with the ground or other objects, affecting the grounding effect and the service life of the entire device. These problems not only affect the reliability and safety of the grounding device, but also increase the work risks and operational difficulty of maintenance personnel;

[0006] 2. The hanging joint structure suspended on the distribution line, despite having a locking structure, that is, a structure designed on the handheld rod to support the bottom end of the distribution line, still has the risk of falling off during the swinging of the hanging line.

[0007] Therefore, we propose a grounding device for distribution lines to solve the above problems. Summary of the Invention

[0008] The object of the present invention is to provide a distribution line grounding device to solve the problems raised in the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A distribution line grounding device includes a central shaft, a fixing clamp is installed on the top of the central shaft, the right end of the fixing clamp is fixedly connected to a side plate, a hanging ring is installed on the top of the side plate, a U-shaped groove is provided at the bottom of the side plate, a rotating shaft is installed in the inner cavity of the U-shaped groove, both ends of the outer ring of the rotating shaft are equipped with toothed disks, a pulling rod is equipped on the outer ring of the central shaft, a tightening paddle is provided on the right side of the pulling rod, and a release paddle is provided on the left side of the pulling rod.

[0011] Preferably, the fixing clamp moves up and down by pulling the pulling rod to form a circular distribution wire trough with the hanging ring to clamp the distribution wire.

[0012] Preferably, a suspension line is wound around the middle of the outer ring of the rotating shaft, and a plug bolt is installed at the bottom of the suspension line.

[0013] Preferably, the tightening paddle and the releasing paddle are both elastic sheets, and the bending and tilting directions of the tightening paddle and the releasing paddle are opposite.

[0014] Preferably, the tooth structure on the toothed disc is engaged with the tightening paddle or the releasing paddle, and the engagement state is unique.

[0015] Preferably, both ends of the rotating shaft are docked and installed with the side plates through bearings, and the rotating shaft is a conductive shaft.

[0016] Preferably, both ends of the outer ring of the rotating shaft are clamped with clamping rings, and the top of the clamping ring is fixedly connected with a fixing rod.

[0017] Preferably, the top of the fixing rod passes through the side plate and extends to the outside of the top of the side plate, a conductive sheet is installed on the inner wall of the hanging ring through a fastener, and the top of the fixing rod is electrically connected to the conductive sheet.

[0018] Preferably, the top of the outer ring of the central shaft is a threaded shaft structure, and a threaded hole matching it is opened at the bottom of the fixing clamp. The bottom of the central shaft is fixedly connected to a tray, the pulling rod is a hollow rod structure, and a limiting disk is fixedly installed on the inner wall of the pulling rod.

[0019] Preferably, the plug bolt is an external spiral roller structure, and handles are fixedly installed on both sides of the top of the outer wall of the plug bolt.

[0020] Preferably, an electroscope is provided in front of the pulling rod, and the electroscope is a passive non-contact electroscope with a voltage level of 10 kV / 0.4 kV.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The distribution line grounding device, through the ingenious design and application of the central axis, pulling rod, rotating shaft and gear plate, can realize automatic winding and tightening of the suspension line by directly hanging the device and pulling the pulling rod multiple times during the inspection and maintenance of the distribution line. This design effectively solves the problem of the grounding device's suspension line being too loose in the prior art, avoids the suspension line from shaking due to the influence of the external environment, thereby reducing the risk of electric shock accidents and improving the safety during the construction process. In addition, the one-way engagement mechanism of tightening and releasing the paddle makes the operation simple and quick, which helps to improve the inspection efficiency, while ensuring that the suspension line always maintains appropriate tension, further enhancing the stability and reliability of the device, and ensuring the grounding effect of the distribution line.

[0023] 2. The distribution line grounding device, through the design and use of the central axis, pull rod, rotating shaft and gear disc, can directly connect and fix the entire grounding device to the distribution line through the suspension line while tightening the suspension line. This can effectively solve the problem that the existing grounding device needs to be operated with both hands to lock it on the distribution line, which poses a safety hazard.

[0024] 3. The distribution line grounding device is designed with a plug-in bolt with a spiral roller structure. Combined with the use of an upper handle, it can first be drilled into soils of different hardness, thus ensuring the grounding performance of the entire grounding device. Secondly, the drilled plug-in bolt can also increase the magic friction between it and the soil when in use, which can effectively solve the problem that the grounding end is easily affected and falls off, affecting the safety of the operator.

[0025] 4. After the distribution line grounding device clamps the distribution line with the wire trough, a circular distribution line trough is formed through the cooperation of the central axis, the pulling rod and the rotating shaft, thereby preventing the distribution line from loosening and thus the loosening of the grounding device: the whole structure is simple and easy to operate. Only by pulling the rod can the fixing clamp be brought close to the hanging ring to form a circular distribution line trough with the hanging ring, and the distribution line is clamped. The distribution line is placed between the hanging ring and the fixing trough, so that the distribution line can be prevented from loosening and the grounding device can be prevented from running.

[0026] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described below are only some embodiments. A person skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is an exploded view of the winding position structure of the present invention;

[0030] Figure 3 For the present invention Figure 1 A magnified view of the structure at center A;

[0031] Figure 4 This is a cross-sectional view of the position of the pull-out rod of the present invention;

[0032] Figure 5 For the present invention Figure 4 A magnified view of the structure at point B in the middle;

[0033] Figure 6 It is a schematic diagram of the plug-in bolt structure of the present invention.

[0034] In the figure: 1. Center axis; 2. Fixing clamp; 3. Side panel; 4. Hanging ring; 5. Rotating shaft; 6. Toothed plate; 7. Suspension line; 8. Fixing rod; 9. Snap ring; 10. Pull rod; 11. Tightening paddle; 12. Release paddle; 13. Connecting bolt; 14. Handle; 15. Limit plate; 16. Tray; 17. Tester.

[0035] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0036] The present invention will now be described in further detail.

[0037] The present invention provides a technical solution for a distribution line grounding device:

[0038] Example 1:

[0039] like Figure 1 and Figure 2 As shown, the grounding device mainly includes a central shaft 1, a fixing clamp 2 is installed on the top of the central shaft 1, a side plate 3 is fixedly installed at one end of the fixing clamp 2, and a hanging ring 4 is installed on the top of the side plate 3.

[0040] like Figure 1 and Figure 2 As shown, a U-shaped notch structure is provided at the bottom of the side plate 3 , a rotating shaft 5 is installed at the bottom of the inner cavity of the U-shaped notch structure, and gear discs 6 are mounted on both ends of the outer ring of the rotating shaft 5 .

[0041] like Figure 1 As shown, a pull-out rod 10 is sleeved on the outer ring of the central shaft 1 , a tightening paddle 11 is provided on the right side of the pull-out rod 10 , and a releasing paddle 12 is provided on the left side of the pull-out rod 10 .

[0042] The middle of the outer ring of the rotating shaft 5 is wrapped with a suspension wire 7, and a plug 13 is installed at the bottom of the suspension wire 7. The main function of the plug 13 is to fix one end of the suspension wire 7 to the ground, realizing the grounding function of the suspension wire 7. Before using the grounding device, it needs to be pre-inserted into the ground.

[0043] The tightening paddle 11 and the releasing paddle 12 are both elastic sheets, and their bending directions are opposite. Figure 1 In the state shown, the tightening paddle 11 is engaged with the teeth on the toothed disc 6. Here, the toothed disc 6 is only engaged with the tightening paddle 11 or the release paddle 12, that is, the toothed disc 6 is not engaged with the tightening paddle 11 and the release paddle 12 at the same time. Since the tightening paddle 11 and the release paddle 12 are elastic and have a curved angle and an inclined sheet structure, the tightening paddle 11 and the release paddle 12 can only drive the toothed disc 6 to rotate in one direction.

[0044] The outer diameter of the central shaft 1 is smaller than the inner diameter of the central opening of the drawing rod 10. A limit plate 15 is installed on the inner wall of the central opening of the drawing rod 10, and a tray 16 is provided at the bottom of the central shaft 1. The main function of the tray 16 is to limit the downward limit of the drawing rod 10. That is, when the drawing rod 10 is pulled downward, the limit plate 15 is used to stop the drawing rod 10 in time. At the same time, it is also to ensure that the drawing rod 10 can be fitted on the central shaft 1 without falling.

[0045] It should be noted that through the ingenious design and use of the central shaft 1, the pull rod 10, the rotating shaft 5, and the toothed disc 6, not only can the suspension wire 7 be tightened, but the entire grounding device can also be directly connected and fixed to the distribution line using the suspension wire 7. This design effectively solves the safety hazard problem caused by the existing grounding device requiring two-handed operation to lock it to the distribution line. In traditional devices, operators need to use both hands to perform complex locking operations at high altitudes, which is not only time-consuming and labor-intensive, but also increases the risk of electric shock and falls. However, through the innovation of the mechanical structure of this device, the operator only needs to pull the pull rod 10 with one hand to easily tighten and fix the suspension wire 7, greatly simplifying the operation process and improving work efficiency. More importantly, this one-handed operation method significantly reduces the safety risks in high-altitude operations and ensures the safety of operators when inspecting and maintaining distribution lines. At the same time, the automatic tightening function of the suspension wire 7 ensures a firm connection between the grounding device and the distribution line, preventing accidental electric shock caused by looseness or shaking, and improving the reliability and stability of the entire system.

[0046] When the cam 11 is in the state of being tightened, the cam 11 is tightened and the cam 12 is tightened, so that the cam 11 is tightened and the cam 12 is tightened.

[0047] After the inspection and maintenance work is completed, pull the pulling rod 10 downward to the extreme position, rotate the release paddle 12 to engage with the toothed disc 6, repeat the action of winding the suspension wire, and then the shaft 5 can be rotated in the opposite direction to release the wound suspension wire 7, thereby removing the grounding device from the wire.

[0048] like Figure 1 As shown, specifically, the fixing clamp 2 of the device is located at the top of the central shaft 1, and a pulling rod 10 is mounted on the outer ring of the central shaft 1. The pulling rod 10 can drive the fixing clamp 2 to move upward, and cooperate with the hanging ring 4 to form a circular distribution wire trough, which firmly clamps the distribution wire and ensures that the distribution wire is firmly fixed on the hanging ring 4 to avoid detachment from the hanging ring 4. This design not only improves the applicability and safety of the grounding device, but also simplifies the use process and reduces the cost of use.

[0049] Example 2:

[0050] The grounding device mainly includes a central shaft 1, a fixing clamp 2 is installed on the top of the central shaft 1, a side plate 3 is fixedly installed at one end of the fixing clamp 2, a hanging ring 4 is installed on the top of the side plate 3, a U-shaped notch structure is provided at the bottom of the side plate 3, a rotating shaft 5 is installed at the bottom of the inner cavity of the U-shaped notch structure, and toothed discs 6 are installed at both ends of the outer ring of the rotating shaft 5. A pulling rod 10 is installed on the outer ring of the central shaft 1, an electroscope 17 is provided in front of the pulling rod 10, a tightening paddle 11 is provided on the right side of the pulling rod, and a release paddle 12 is provided on the left side of the pulling rod 10. A suspension line 7 is wrapped around the middle of the outer ring of the rotating shaft 5, and a plug bolt 13 is installed at the bottom of the suspension line 7.

[0051] like Figure 2As shown, both ends of the outer ring of the rotating shaft 5 are clamped with a clamping ring 9, and a fixing rod 8 is fixedly installed on the top of the clamping ring 9. The top of the fixing rod 8 passes through the side plate 3 and is docked with the hanging ring 4. The inner side wall of the clamping ring 9 is in contact with the conductive outer wall of the rotating shaft 5, and the two are in sliding friction.

[0052] A conductive arc piece is provided on the inner ring of the hanging ring 4 and is mounted on the inner wall of the hanging ring 4 through a fastener. The top of the fixing rod 8 is electrically connected to the conductive arc piece.

[0053] The rotating shaft 5 is a conductive shaft, and there is an electrical connection between the clamping ring 9 and the rotating shaft 5. When in use, the grounding of the power distribution line is achieved through the suspension wire 7, the conductive rotating shaft 5, the clamping ring 9, the fixing rod 8 and the hanging ring 4.

[0054] The electroscope 17 is a non-contact type with a voltage rating of 10 kV / 0.4 kV. It tests the voltage without contacting the power distribution line, reducing the risk of electric shock. Maintenance personnel clamp the power distribution line with the fixing clamp 2 and the hanging ring 4, and place the electroscope close to the power distribution line. When the ground wire connection is normal, the electroscope's indicator light or display will indicate normal.

[0055] In this embodiment, based on the embodiment 1, that is, when the suspension line 7 is wound up by the rotating shaft 5, especially after the suspension line 7 is initially tending to be straightened, the pulling rod 10 is continued to be operated to wind up the suspension line 7 again. The pulling force of the suspension line 7 on the hanging ring 4 allows the hanging ring 4 to further fit with the distribution line, increasing the friction between the two, so that the hanging ring 4 can be hung more firmly on the distribution line, thereby increasing the safety factor of the distribution line inspection and operation.

[0056] Example 3:

[0057] The grounding device mainly includes a central shaft 1, a fixing clamp 2 is installed on the top of the central shaft 1, a side plate 3 is fixedly installed at one end of the fixing clamp 2, a U-shaped notch structure is provided at the bottom of the side plate 3, a rotating shaft 5 is installed at the bottom of the inner cavity of the U-shaped notch structure, a suspension wire 7 is wound around the middle of the outer ring of the rotating shaft 5, and a plug bolt 13 is installed at the bottom of the suspension wire 7.

[0058] like Figure 6 As shown, the plug bolt 13 is specifically a cylindrical structure with a spiral roller structure, and handles 14 are fixedly welded on both sides of the top of the outer wall of the plug bolt 13.

[0059] In this embodiment, when the plug bolt 13 is inserted into the ground, the operator directly holds the handle 14 with both hands and drills into the soil in a rotating state. On the one hand, the plug bolt 13 can be inserted into the ground for soils of different hardness. On the other hand, the spiral roller structure inserted into the soil can also increase the friction between the plug bolt 13 and the soil, preventing the grounding end from being affected and falling off, affecting the work safety of maintenance personnel.

[0060] More specifically, the distribution line grounding device utilizes a plug-in bolt 13 with a spiral roller structure, combined with a handle 14. Firstly, it can be drilled into soils of varying hardness, ensuring a secure ground connection. The spiral roller plug-in bolt 13, through rotation, can easily penetrate both hard and soft soil, ensuring a secure installation of the grounding device in a variety of geological conditions. Secondly, the spiral shape of the spiral roller structure increases friction between the plug-in bolt 13 and the soil after drilling into it, effectively preventing the grounding terminal from loosening or falling off due to environmental influences. This design significantly improves the stability and safety of the grounding device, ensuring that the grounding device remains secure during operation, thus avoiding safety hazards caused by the grounding terminal falling off. Furthermore, the handle 14 makes the operation of the plug-in bolt 13 more convenient and labor-saving. Even at high altitudes or in other complex environments, the operator can easily and securely secure the plug-in bolt 13 to the ground, further enhancing the ease of use and reliability of the grounding device. This comprehensive design not only enhances the functionality of the grounding device but also greatly enhances its safety performance in practical applications, providing operators with a safer and more reliable working environment.

[0061] The present invention is not limited to the above-described embodiments. Any structural changes made under the guidance of the present invention, which have the same or similar technical solutions as the present invention, should be understood to fall within the scope of protection of the present invention. The technologies, shapes, and structural parts not described in detail in the present invention are all well-known technologies.

Claims

1. A distribution line grounding device, comprising a central shaft (1), a fixing clamp (2) is provided on the top of the central shaft, a side plate (3) is fixedly connected to the right end, a hanging ring (4) is installed on the top of the side plate, a U-shaped groove is provided at the bottom of the side plate, a rotating shaft (5) is installed in the inner cavity of the U-shaped groove, both ends of the outer ring of the rotating shaft (5) are fitted with toothed discs (6), a pulling rod (10) is fitted on the outer ring of the central shaft, an electroscope (17) is provided in front of the pulling rod (10), a tightening paddle (11) is provided on the right side of the pulling rod (10), and a releasing paddle (12) is provided on the left side of the pulling rod (10).

2. A distribution line grounding device according to claim 1, characterized in that: The pulling rod (10) enables the fixing clamp (2) to move along the side plate (3), and a circular distribution wire trough is formed between the wire fixing clamp (2) and the hanging ring (4).

3. A distribution line grounding device according to claim 1, characterized in that: A suspension line (7) is wound around the middle of the outer ring of the rotating shaft (5), and a plug bolt (13) is installed at the bottom of the suspension line (7).

4. A distribution line grounding device according to claim 1, characterized in that: The tightening paddle (11) and the releasing paddle (12) are both elastic sheets, and the bending and tilting directions of the tightening paddle (11) and the releasing paddle (12) are opposite.

5. A distribution line grounding device according to claim 1, characterized in that: The tooth structure on the toothed disc (6) is engaged with the tightening paddle (11) or the releasing paddle (12).

6. A distribution line grounding device according to claim 1, characterized in that: Both ends of the rotating shaft (5) are butt-jointed with the side plates (3) via bearings, and the rotating shaft (5) is a conductive shaft.

7. A distribution line grounding device according to claim 1, characterized in that: Both ends of the outer ring of the rotating shaft (5) are clamped with clamping rings (9), and the top of the clamping ring (9) is fixedly connected with a fixing rod (8).

8. A distribution line grounding device according to claim 7, characterized in that: The top of the fixing rod (8) passes through the side plate (3) and extends to the outside of the top of the side plate (3); a conductive sheet is installed on the inner wall of the hanging ring (4) through a fastener, and the top of the fixing rod (8) is electrically connected to the conductive sheet.

9. A distribution line grounding device according to claim 1, characterized in that: The top of the outer ring of the central shaft (1) is a threaded shaft structure, and a threaded hole matching the threaded shaft is provided at the bottom of the fixing clamp (2). The bottom of the central shaft (1) is fixedly connected to a tray (16). The pulling rod (10) is a hollow rod structure, and a limiting plate (15) is fixedly installed on the inner wall of the pulling rod (10).

10. A distribution line grounding device according to claim 1, characterized in that: The plug-in bolt (13) is an external spiral roller structure, and handles (14) are fixedly mounted on both sides of the top of the outer wall of the plug-in bolt (13).

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