High-voltage cable grounding system defect detection device based on signal injection

Abstract

The invention discloses a high-voltage cable grounding system defect detection device based on signal injection, and relates to the technical field of high-voltage cable grounding, the high-voltage cable grounding system defect detection device comprises a grounding pole, a bolt, a gasket, an auxiliary link sheet, a nut and a cable, the bolt is inserted into a fixing hole formed in the grounding pole, the nut is in threaded connection with the bolt, the gasket sleeves the bolt, and the auxiliary link sheet is connected with the cable. Through the design of the defect detection assembly, the stability of the grounding system can be enhanced. The vertical burying state of the grounding pole is detected in a real-time monitoring manner, and once the grounding pole is inclined, the detection device can quickly give out early warning; and operation and maintenance personnel are timely notified to take measures, such as recalibrating the position of the pole, reinforcing surrounding soil and ensuring that the grounding pole is always kept in a good burying state, so that the stability of a grounding resistor can be effectively maintained, the current fluctuation caused by resistance change due to inclination of the pole is avoided, and the stability of a high-voltage cable grounding system is fundamentally enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of high-voltage cable grounding, and in particular to a high-voltage cable grounding system defect detection device based on signal injection. Background Art

[0002] In modern power transmission networks, high-voltage cable systems play an extremely critical role. Their main function is to efficiently and safely transmit the electricity generated by power plants in the form of high voltage over long distances to various power consumption areas to meet the power needs of industrial production, residents' lives, and various public facilities. Compared with low-voltage transmission, high-voltage transmission can effectively reduce the loss of electricity during transmission, improve transmission efficiency, and achieve large-scale, long-distance power transmission.

[0003] High-voltage cable systems usually consist of multiple core components. Among them, the cable body is the carrier of electric energy transmission, which is composed of conductors, insulation layers, shielding layers and circuit parts. The conductor is responsible for conducting current, and the insulation layer ensures the stable transmission of current in the conductor to prevent current leakage; the shielding layer can effectively shield electromagnetic interference and protect the internal structure of the cable from the influence of external electromagnetic fields; in addition, the grounding system is also an indispensable part of the high-voltage cable system, which includes grounding electrodes and connecting wire components; the grounding electrode, that is, the electrode column, is connected to the shielding layer of the cable through the connecting wire. Its main function is to provide a low-resistance discharge channel for the fault current when a cable fault occurs, ensuring the safety of personnel and equipment, while maintaining the normal operation of the power system.

[0004] However, in actual operation, high-voltage cable systems face many challenges. In the prior art, electrode columns often have problems due to external environmental factors. For example, in some industrial production areas, the strong vibrations generated by the operation of large-scale mechanical equipment will continue to affect the stability of the soil around the electrode columns. Over time, the electrode columns will be tilted or even collapsed; in areas with strong winds and sand, long-term wind and sand erosion will cause the soil around the electrode columns to be lost, destroying their original buried state, and it is also easy to cause the displacement or collapse of the electrode columns; once the electrode columns collapse abnormally, their contact area and contact tightness with the soil will change, which will lead to significant changes in the grounding resistance; according to Ohm's law, resistance changes will inevitably cause fluctuations in the grounding current, which will seriously affect the normal operation of the high-voltage cable system, and may even cause power failures, resulting in serious consequences of large-scale power outages.

[0005] At present, there is a lack of effective detection measures in the existing technology for this type of defect problem caused by changes in resistance and current due to the tipping of electrode columns. Traditional detection methods can often only be used to investigate by observing the abnormal performance of the power system after the fault occurs, and it is difficult to discover potential problems with the electrode columns in the early stages; moreover, there are obvious deficiencies in protective measures, and it is impossible to prevent and reduce the tipping of electrode columns due to external vibrations and wind and sand in advance, and it is impossible to effectively ensure the stability and reliability of the high-voltage cable grounding system. Based on this, it is urgent to develop a device that can detect defects in the high-voltage cable grounding system in real time and accurately, and has certain protective functions. It is in this context that the high-voltage cable grounding system defect detection device based on signal injection came into being, aiming to make up for the shortcomings of the existing technology and provide a stronger guarantee for the safe and stable operation of high-voltage cables.

[0006] Therefore, the present invention proposes a high-voltage cable grounding system defect detection device based on signal injection to solve the above problems. Summary of the invention

[0007] In view of this, the technical problem to be solved by the present invention is to propose a high-voltage cable grounding system defect detection device based on signal injection to solve the problems existing in the prior art.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-voltage cable grounding system defect detection device based on signal injection, comprising: a grounding pole, a bolt, a gasket, an auxiliary link plate, a nut, and a cable, wherein the bolt is inserted into a fixed hole opened on the grounding pole, the nut is threadedly connected to the bolt, the gasket is sleeved on the bolt and fixedly connected to the auxiliary link plate, the cable is fixedly connected to the auxiliary link plate, and also comprises: a defect detection component and a defect protection component, wherein the defect detection component and the defect protection component are both surrounded by the grounding pole; the defect detection component is used to detect defects such as the grounding pole being prevented from tipping over due to external vibration and wind and sand changing the depth of the grounding pole in the soil, resulting in resistance changes and current changes; the defect protection component is used to protect the grounding pole from tipping over due to external vibration and wind and sand problems.

[0009] Preferably, the defect detection component includes a support plate, the bottom end of the support plate is equidistantly fixedly connected with cone spikes, and the support plate is symmetrically fixedly connected with side panels A.

[0010] Preferably, a slide groove is provided in the side panel A, and a through adjustment hole is provided on the side panel A.

[0011] Preferably, a sliding plate is slidably connected in the adjustment hole, a sleeve is movably inserted on the sliding plate, and the outer end of the sleeve is threadedly connected to a fastening screw through a built-in thread.

[0012] Preferably, a strain gauge is fixedly connected in the sleeve, a fixing ring is fixedly connected in the fastening screw and located on one side of the strain gauge, and a spring is fixedly connected to a side of the fixing ring away from the strain gauge.

[0013] Preferably, a sliding push post is slidably inserted in the sleeve, and one end of the sliding push post away from the sleeve is fixedly connected to a cover shell.

[0014] Preferably, the defect protection component includes a local hole that is opened through the support plate, and the side plate B is symmetrically fixedly connected to the support plate, and the side plate B is provided with an auxiliary cavity.

[0015] Preferably, a covering ring is sleeved on the grounding pole, a movable column is symmetrically fixedly connected to the outer end of the covering ring in an annular surface, and an inclined piece is fixedly connected to the movable column.

[0016] Preferably, a guide plate is fixedly connected to the inner cavity of the side panel B, a connecting rod is movably inserted on the guide plate, and a counterweight block is fixedly connected to the bottom end of the connecting rod.

[0017] Preferably, one end of the connecting rod away from the counterweight is fixedly connected to a vertical rod, an oblique groove is provided on the vertical rod, and a plugging piece is provided at the bottom end of the side panel B.

[0018] Compared with the prior art, the present invention provides a high-voltage cable grounding system defect detection device based on signal injection, which has the following beneficial effects: 1. The present invention can bring the following benefits to the overall work through the design of the defect detection component: Enhance the stability of the grounding system: Through real-time monitoring and detection of the vertical buried state of the grounding pole, once it tilts, the detection device can quickly issue an early warning. This allows operation and maintenance personnel to take timely measures, such as recalibrating the pole position and reinforcing the surrounding soil to ensure that the grounding pole always remains in a good buried state. In this way, the stability of the grounding resistance can be effectively maintained, avoiding changes in resistance due to pole tilt, and then causing current fluctuations, fundamentally enhancing the stability of the high-voltage cable grounding system and ensuring the continuous stability of power transmission.

[0019] Improve the detection accuracy of the overall device: Changes in the state of the grounding pole will affect the transmission characteristics of the grounding system for the injected signal. The detection device can detect pole abnormalities in a timely manner, so that when the detection device based on signal injection analyzes signal parameters, there will be no signal interference or misjudgment due to pole tilt problems. For example, a normally buried grounding pole can make the injected signal propagate evenly and stably in the grounding system, and the signal received by the detection device can more accurately reflect the actual situation of other parts of the grounding system, thereby improving the overall device's detection accuracy for various grounding defects, such as abnormal grounding resistance, loose connections, and other problems.

[0020] Reduce operation and maintenance costs and risks: When there is no grounding pole status detection device, it is difficult for operation and maintenance personnel to know in advance whether the pole is tilted, and they can only rely on regular large-scale inspections, and the above method will also miss problems due to untimely detection. With this detection device, real-time monitoring of the pole status can be achieved, and problems can be discovered and solved in advance, avoiding large-scale maintenance work after grounding faults caused by pole tilt; this not only saves manpower, material resources and time costs, but also reduces the risk of power outages caused by grounding faults, and reduces economic losses to industrial production, residents' lives, etc.

[0021] 2. What benefits can the design of the side panel A of the present invention bring to the overall work: Real-time intuitive warning: In areas with strong winds and sand, the soil around the grounding pole is easily lost due to wind erosion, resulting in changes in the buried depth of the grounding pole, affecting the grounding effect. The side panel A cleverly uses this phenomenon. When the wind and sand gradually reduce the soil and the side panel A begins to be exposed, it can issue an intuitive warning to relevant personnel at the first time. Compared with the traditional method of relying on professional detection equipment for regular inspections to detect changes in the depth of the grounding pole, the above-mentioned intuitive indications can allow operation and maintenance personnel to detect problems in time during daily inspections, greatly improving the timeliness of problem discovery, and gaining precious time for taking timely measures to correct the depth of the grounding pole, effectively preventing grounding faults caused by insufficient grounding pole depth.

[0022] Reduce maintenance costs: In the past, in order to detect the depth changes of the grounding pole in the soil, it was often necessary to invest in professional testing equipment and manpower for periodic testing, which was costly and difficult to monitor in real time. As a wind and sand indicator, side panel A does not require the purchase of additional complex testing equipment, and the depth status of the grounding pole can be judged simply by observing its exposure. This greatly reduces the manpower, material resources and time costs required for detection, while avoiding more serious failures and subsequent high maintenance costs caused by failure to promptly detect changes in the depth of the grounding pole, thereby reducing the overall maintenance cost of the grounding system and improving operation and maintenance efficiency.

[0023] Improve the overall reliability of the device: Side panel A integrates the support device and the wind and sand indication function, which expands the practical function of the device without increasing the overall complexity of the device. Its role as a wind and sand indicator further improves the monitoring mechanism of the grounding system, so that the entire defect detection device can better play the role of ensuring the stability of the grounding system when facing a complex wind and sand environment; this multifunctional design improves the overall reliability of the device, reduces the risk of failure of the entire device due to failure of a single functional component, and enhances the adaptability and working performance of the device in harsh environments.

[0024] The present invention can bring the following benefits to the overall grounding system through the design of the defect protection component: significantly enhance the stability of the grounding system and resist the influence of vibration: in areas where there are large equipment or vibration sources around, strong and continuous vibrations will gradually loosen the soil around the grounding pole, eventually causing the pole to tilt. The defect protection component can form an anti-displacement structure and a buffer design through its covering ring and movable column in cooperation with the oblique sheet and oblique groove, which can effectively absorb and disperse vibration energy, reduce the direct impact of vibration on the grounding pole, maintain the vertical buried state of the grounding pole, maintain the resistance stability of the grounding pole, ensure the normal operation of the grounding system, avoid abnormal current fluctuations caused by pole tilt, and ensure the continuity and stability of power transmission.

[0025] Reduced maintenance costs: Once the grounding pole tilts, the repair work is not only cumbersome, but also involves replacing parts and reburying operations, which is costly. The defect protection component effectively prevents the grounding pole from tilting, avoiding such serious failures. Even if some minor problems occur, the design of the defect protection component is also convenient for quick inspection and maintenance, and the damaged part can be quickly replaced, which greatly reduces the maintenance cost, extends the service life of the grounding system, and improves the overall return on investment.

[0026] Enhanced system adaptability: The defect protection component can take protective measures for different harsh environments, so that the high-voltage cable grounding system can be more adaptable to various complex environmental conditions. Whether it is an industrial area with frequent vibrations or the edge of a desert with raging sandstorms, the grounding system can operate under the protection of the defect protection component, which enhances the environmental adaptability and reliability of the system and provides a strong guarantee for the safe operation of high-voltage cables in different regions.

[0027] The present invention can bring the following benefits to the overall work by using a mobile column, an oblique piece, a counterweight, an oblique groove, and a plugging piece component in coordination: the stability of the grounding pole is greatly improved, and the dispersion and buffering of the impact force are improved: the coordination design of the oblique piece and the oblique groove, when external factors, such as vibration of large equipment and strong wind impact, cause the grounding pole to have a tendency to fall, the force acting on the grounding pole will be dispersed by the coordination of the oblique piece and its inclined surface with the oblique groove. The above-mentioned structural coordination can disperse the concentrated external force along the oblique direction to avoid excessive force on a single point; compared with the traditional method of relying solely on support rods or auxiliary brackets, its force dispersion effect is better, which greatly reduces the pressure on the grounding pole, thereby effectively reducing the risk of tilting of the grounding pole, ensuring that the grounding pole can still maintain a stable vertical state under complex external force environments, and laying a solid foundation for the stable operation of the grounding system.

[0028] Enhanced vertical stability: The addition of a counterweight at the bottom of the vertical rod significantly increases the bottom weight of the overall device including the grounding pole component; according to the principle of center of gravity, the lower the center of gravity, the more stable the object, and the counterweight can indirectly move the center of gravity of the grounding pole downward, enhancing its ability to resist tipping; at the same time, the plug at the top of the side panel B limits the movement of the vertical rod, which can prevent the grounding pole from being displaced or shaking when subjected to external force during force transmission; this double protection design of up and down further improves the stability of the grounding pole from the vertical dimension, and prevents it from tilting easily under the action of external force in all directions.

[0029] Multi-dimensional protection: The oblique plates and oblique slots, counterweights and plugging components cooperate with each other to form a multi-dimensional protection system. From force dispersion in the horizontal direction to center of gravity adjustment and displacement limitation in the vertical direction, each component performs its own function and works together to provide comprehensive protection against external force threats of different directions and types. Compared with the single support method in the prior art, this comprehensive protection mode can cope with more complex and changeable external force environments, such as resisting the combined effects of vibration and strong wind at the same time, which greatly improves the protection reliability of the grounding pole under various harsh conditions and ensures that the grounding system can continue to operate stably in different scenarios.

[0030] Reduce the occurrence of faults: As the stability of the grounding pole is greatly improved, the occurrence of grounding faults caused by the tilt of the grounding pole is significantly reduced. This means that in daily operation and maintenance, the repair and replacement work due to grounding pole problems is greatly reduced. Operation and maintenance personnel do not need to frequently check and deal with the tilt of the grounding pole, saving a lot of manpower, material resources and time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is an appearance diagram of the main structure of the present invention.

[0032] Figure 2 This is a diagram of the grounding pole of the present invention before installation.

[0033] Figure 3 It is a half-cutaway view of the cover shell in the present invention.

[0034] Figure 4 This is a working status diagram of the defect detection component of the present invention.

[0035] Figure 5 This is a diagram of the defect detection component of the present invention in the detection working state.

[0036] Figure 6 This is a working status diagram of the defect protection component of the present invention.

[0037] Figure 7 For the present invention Figure 6 A magnified view of the structure in the middle.

[0038] Figure 8 This is a structural diagram related to the movable column, oblique sheet, and oblique groove in the present invention.

[0039] Fig. 9 The defect protection component of the present invention is in the detection working state.

[0040] In the figure: 1. Grounding pole; 2. Bolt; 3. Gasket; 4. Auxiliary link plate; 5. Nut; 6. Cable.

[0041] 7. Defect detection assembly; 701. Support plate; 702. Cone spike; 703. Side plate A; 704. Slide groove; 705. Adjustment hole; 706. Sliding plate; 707. Sleeve; 708. Fastening screw; 709. Strain gauge; 710. Fixing ring; 711. Spring; 712. Sliding push column; 713. Cover shell.

[0042] 8. Defect protection component; 801. Local hole; 802. Side plate B; 803. Auxiliary cavity; 804. Covering ring; 805. Moving column; 806. Oblique plate; 807. Guide plate; 808. Connecting rod; 809. Counterweight block; 810. Vertical rod; 811. Oblique groove; 812. Plug. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0045] Example: Please refer to Figures 1 to 5 As shown: In order to solve the problem mentioned in the technical solution, an embodiment of the present application provides a high-voltage cable grounding system defect detection device based on signal injection, including: a grounding pole 1, a bolt 2, a gasket 3, an auxiliary link plate 4, a nut 5, and a cable 6. The bolt 2 is inserted into a fixed hole opened on the grounding pole 1, the nut 5 is threadedly connected to the bolt 2, the gasket 3 is sleeved on the bolt 2, and is fixedly connected to the auxiliary link plate 4, the cable 6 is fixedly connected to the auxiliary link plate 4, and also includes: a defect detection component 7 and a defect protection component 8, and the defect detection component 7 and the defect protection component 8 are both surrounded by the grounding pole 1.

[0046] The defect detection component 7 is used to detect defects in the grounding pole 1 to prevent it from toppling over due to external vibration and wind and sand changing the depth of the grounding pole 1 in the soil, resulting in resistance changes and current changes.

[0047] The defect detection component 7 includes a support plate 701, the bottom end of the support plate 701 is equidistantly fixedly connected with a cone spike 702, the support plate 701 is symmetrically fixedly connected with a side plate A703, the side plate A703 is provided with a slide groove 704, the side plate A703 is provided with a through adjustment hole 705, a sliding plate 706 is slidably connected in the adjustment hole 705, a sleeve 707 is movably inserted into the sliding plate 706, the outer end of the sleeve 707 is threadedly connected with a fastening screw 708 through an internal thread, a strain gauge 709 is fixedly connected in the sleeve 707, a fixing ring 710 is fixedly connected in the fixing screw 708 and located on one side of the strain gauge 709, a spring 711 is fixedly connected to a side of the fixing ring 710 away from the strain gauge 709, a sliding push column 712 is slidably inserted in the sleeve 707, and a cover shell 713 is fixedly connected to the end of the sliding push column 712 away from the sleeve 707.

[0048] Among them: the defect detection component 7 is used to detect defects in the grounding pole 1 to prevent it from toppling over due to external vibration and wind and sand changing the depth of the grounding pole 1 in the soil, resulting in resistance changes and current changes.

[0049] The spikes 702 can assist the support plate 701 in being embedded in the soil during burial, thereby stabilizing the position and shape of the support plate 701 in the soil.

[0050] The inner diameter of the adjustment hole 705 is matched with the outer diameter of the sleeve 707; the sleeve 707 can be changed to be located in the adjustment hole 705 at different heights on the side plate A703 according to different situations, so as to cooperate with the cover shell 713 to fasten and fix the grounding pole 1.

[0051] The inner cavity at the outer end of the sleeve 707 has a threaded opening adapted for screwing the fastening screw 708 , and the outer end has a silicone sheet. When the fastening screw 708 is screwed, the fastening screw 708 can just fix the adjustment hole 705 through the silicone sheet on the sleeve 707 .

[0052] The strain gauge 709 is electrically connected to the master control receiver via wireless sensing. When the strain gauge 709 is subjected to pressure, it can transmit a signal to the master control receiver.

[0053] For further examples, please refer to Figure 1 , Figure 2 , Figures 6 to 9As shown: the defect protection component 8 is used to protect the grounding pole 1 from tipping over due to external vibration and wind and sand problems. The defect protection component 8 includes a local hole 801 that is opened through the support plate 701, and the side plate B802 is symmetrically fixedly connected to the support plate 701, and an auxiliary cavity 803 is opened in the side plate B802. A covering ring 804 is sleeved on the grounding pole 1, and a movable column 805 is symmetrically fixedly connected to the outer end of the covering ring 804. An oblique piece 806 is fixedly connected to the movable column 805, and a guide piece 807 is fixedly connected to the inner cavity of the side plate B802. A connecting rod 808 is movably inserted on the guide piece 807, and a counterweight block 809 is fixedly connected to the bottom end of the connecting rod 808. The end of the connecting rod 808 away from the counterweight block 809 is fixedly connected to a vertical rod 810, and an oblique groove 811 is opened on the vertical rod 810. A plugging piece 812 is plugged at the bottom end of the side plate B802.

[0054] Among them: the defect protection component 8 is used to protect the grounding pole 1 from tipping over due to external vibration and wind and sand problems; and the defect protection component 8 can be provided in multiple groups according to specific usage conditions, and multiple covering rings 804 can be set on different positions of the grounding pole 1.

[0055] The grounding pole 1 can be inserted therethrough; the guide piece 807 is matched with the connecting rod 808.

[0056] The oblique piece 806 is matched with the oblique groove 811 , and the oblique piece 806 cooperates with the oblique groove 811 to relieve force, and the addition of the counterweight block 809 can improve the stability of the grounding pole 1 .

[0057] When the plugging piece 812 is plugged with the side plate B802, the friction between the two can also indirectly reduce the force caused by the grounding pole 1 wanting to tilt.

[0058] The working principles of all contents in the above embodiments are as follows: in the initial state: the spring 711 is in a normal relaxed state, the sliding push rod 712 does not contact the extrusion strain gauge 709, and the counterweight block 809 is in an upward moving state due to external force.

[0059] Preliminary burial treatment: First, positioning and laying out are required; according to the design drawings, use measuring instruments to position and lay out at the construction site to determine the buried position of the grounding pole 1. After marking the position of the grounding pole and the path of the grounding wire on the ground with lime powder or other marking materials, start digging the burial pit. Use a shovel or excavator tool to dig the burial pit at the marked position. The depth of the burial pit should meet the design requirements and is generally not less than 0.6 meters. For areas with high soil resistivity, deeper burial is required; the width and length of the pit should be appropriately adjusted according to the size of the grounding pole 1 to ensure that the grounding pole 1 can be smoothly placed in the pit and there is enough space around it for backfilling and compaction.

[0060] Grounding electrode installation: Place the designed overall device vertically in the burial pit, then insert the grounding pole 1 through the center of the local hole 801, and use a hammer or pile driver to drive the grounding pole 1 into the ground until it reaches the designed depth; further, during the driving process, ensure that the grounding pole 1 remains vertical to avoid tilting; for multiple grounding poles 1, bury them in sequence according to the spacing required by the design; then pass the cable 6 through the reserved hole opened on the cover shell 713, and then install the accessories on the grounding pole 1, please refer to the attached Figure 2 After the treatment is completed, the cover shell 713 will be buckled on the top of the grounding pole 1. Figure 1 Then the sliding fitting composed of the sleeve 707 and the sliding push pin 712 is inserted into the adjustment hole 705 opened on the side plate A703, and at the same time, it is inserted through the hole opened on the sliding plate 706 sliding in the slide groove 704. After the position is adjusted, please refer to the attached Figure 5 As is known, the inner cavity at the outer end of the sleeve 707 has a threaded opening adapted for screwing the fastening screw 708, and the outer end has a silicone sheet. When the fastening screw 708 is screwed, the fastening screw 708 can just fix the adjustment hole 705 through the silicone sheet on the sleeve 707. Therefore, screwing the fastening screw 708 at this time can fix the adjustment hole 705.

[0061] Furthermore, the covering ring 804 is similarly passed through the ground pole 1 before it is driven into the ground, thereby completing the fixation of the ground pole 1 and the covering ring 804.

[0062] The following is the working process of the defect detection component 7: When the grounding pole 1 buried in the soil shakes due to external force, refer to the attached Figure 4 In the horizontal position where the sleeve 707 and the sliding push pin 712 are located, the symmetrical arrangement can stabilize the cover shell 713 on the top of the grounding pole 1. If the external force has a large impact on the grounding pole 1, causing the grounding pole 1 to tilt, the grounding pole 1 will contact the cover shell 713 through the top and eventually cause the cover shell 713 to move with the sliding push pin 712 into the sleeve 707. During the movement, the spring 711 will be compressed, and the sliding push pin 712 will eventually squeeze the strain gauge 709 in the sleeve 707. As it is known, there is an electrical connection between the strain gauge 709 and the main control receiver through wireless sensing. When the strain gauge 709 is under pressure, it can transmit a signal to the main control receiver; therefore, the staff in the monitoring room will know that the grounding pole 1 here has tilted due to a large impact. This design makes up for the defects of the grounding system that can only be discovered during inspections.

[0063] Furthermore, the design of the side panel A703 can provide real-time and intuitive warnings for the overall work: in areas with strong winds and sand, the soil around the grounding pole 1 is easily lost due to wind erosion, resulting in changes in the buried depth of the grounding pole, affecting the grounding effect. The side panel A703 cleverly utilizes this phenomenon. When the wind and sand gradually reduce the soil and the side panel A703 begins to be exposed, it can issue an intuitive warning to relevant personnel at the first time. Compared with the traditional method of relying on professional detection equipment for regular inspections to detect changes in the depth of the grounding pole, the above-mentioned intuitive instructions allow operation and maintenance personnel to detect problems in a timely manner during daily inspections, greatly improving the timeliness of problem discovery, winning precious time for timely measures to correct the depth of the grounding pole, and effectively preventing grounding faults caused by insufficient grounding pole depth.

[0064] Reduce maintenance costs: In the past, in order to detect the depth change of the grounding pole 1 in the soil, it was often necessary to invest in professional testing equipment and manpower for periodic testing, which was costly and difficult to monitor in real time. The side panel A703 is used as a sand indicator. There is no need to purchase additional complex testing equipment. The depth status of the grounding pole can be judged by simply observing its exposure. This greatly reduces the manpower, material resources and time costs required for detection, while avoiding more serious failures and subsequent high maintenance costs caused by failure to promptly detect changes in the depth of the grounding pole, thereby reducing the overall maintenance cost of the grounding system and improving operation and maintenance efficiency.

[0065] Improve the overall reliability of the device: The side panel A703 integrates the support device and the wind and sand indication function, which expands the practical functions of the device without increasing the overall complexity of the device. Its role as a wind and sand indicator further improves the monitoring mechanism of the grounding system, so that the entire defect detection device can better play the role of ensuring the stability of the grounding system when facing a complex wind and sand environment; this multifunctional design improves the overall reliability of the device, reduces the risk of failure of the entire device due to failure of a single functional component, and enhances the adaptability and working performance of the device in harsh environments.

[0066] Please refer to the above working process Figures 1 to 5 .

[0067] The following is the working process of the defect protection component 8: Furthermore, before the defect detection component 7 works passively, the stability of the grounding pole 1 is protected by the defect protection component 8, that is, when the grounding pole 1 is impacted by external force, the grounding pole 1 will carry the covering ring 804 through the transmission of the moving column 805, so that the moving column 805 interacts with the oblique groove 811 opened on the oblique groove 811, so as to disperse the impact force received. During this process, the vertical rod 810 will be in a state of being forced to rise, but the counterweight block 809 connected to the bottom end of the vertical rod 810 through the connecting rod 808 will stop the upward movement to ensure that it is in a normal state. At the same time, the plug 812 at the top of the vertical rod 810 can also prevent the vertical rod 810 from rising.

[0068] Furthermore, by using the mobile column 805, the oblique piece 806, the counterweight block 809, the oblique groove 811, and the plugging piece 812 in coordination, the stability of the grounding pole 1 can be greatly improved, and the force dispersion and buffering can be achieved: that is, the coordination design of the oblique piece 806 and the oblique groove 811, when external factors, such as vibration of large equipment and strong wind impact, make the grounding pole 1 tend to fall, the force acting on the grounding pole 1 will be dispersed by the oblique piece 806 and its inclined surface in coordination with the oblique groove 811. The above-mentioned structural coordination can disperse the concentrated external force along the oblique direction to avoid excessive force on a single point; compared with the traditional method of relying solely on support rods or auxiliary brackets, its force dispersion effect is better, greatly reducing the pressure on the grounding pole 1, thereby effectively reducing the risk of tilting of the grounding pole 1, ensuring that the grounding pole 1 can still maintain a stable vertical state under complex external force environments, and laying a solid foundation for the stable operation of the grounding system.

[0069] Enhanced vertical stability: The addition of the counterweight 809 at the bottom end of the vertical rod 810 significantly increases the bottom weight of the overall device including the grounding pole 1. According to the principle of center of gravity, the lower the center of gravity, the more stable the object. The counterweight 809 can indirectly move the center of gravity of the grounding pole 1 downward, thereby enhancing its ability to resist tipping. At the same time, the plug 812 at the top of the side panel B802 limits the movement of the vertical rod 810, thereby preventing the grounding pole 1 from being displaced or shaken when subjected to external force during force transmission. This double protection design of one up and one down further enhances the stability of the grounding pole 1 from a vertical dimension, thereby preventing it from tilting easily under the action of external force.

[0070] Multi-dimensional protection: The oblique sheet 806 cooperates with the oblique slot 811, the counterweight block 809 and the plugging piece 812 to form a multi-dimensional protection system. From the force dispersion in the horizontal direction to the center of gravity adjustment and displacement limitation in the vertical direction, each component performs its own function and works together to provide comprehensive protection against external force threats of different directions and types. Compared with the single support method in the prior art, this comprehensive protection mode can cope with more complex and changeable external force environments, such as resisting the combined effects of vibration and strong wind at the same time, which greatly improves the protection reliability of the grounding pole 1 under various harsh conditions and ensures that the grounding system can continue to operate stably in different scenarios.

[0071] Reduce the occurrence of faults: As the stability of grounding pole 1 is greatly improved, the occurrence of grounding faults caused by the tilt of grounding pole 1 is significantly reduced. This means that in daily operation and maintenance, the repair and replacement work due to the problem of grounding pole 1 is greatly reduced. Operation and maintenance personnel do not need to frequently check and deal with the tilt problem of grounding pole 1, saving a lot of manpower, material resources and time costs.

[0072] Please refer to the above working process Figure 1 , Figure 2 , Figures 6 to 9 .

[0073] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-voltage cable grounding system defect detection device based on signal injection, comprising: A grounding pole (1), a bolt (2), a washer (3), an auxiliary linking plate (4), a nut (5), and a cable (6), wherein the bolt (2) is inserted into a fixing hole provided on the grounding pole (1), the nut (5) is threadedly connected to the bolt (2), the washer (3) is sleeved on the bolt (2) and fixedly connected to the auxiliary linking plate (4), and the cable (6) is fixedly connected to the auxiliary linking plate (4), characterized in that it also includes: a defect detection component (7) and a defect protection component (8), wherein the defect detection component (7) and the defect protection component (8) are both arranged around the grounding pole (1); the defect detection component (7) is used to detect defects of the grounding pole (1) to prevent the grounding pole (1) from tipping over due to external vibration and wind and sand changing the depth of the grounding pole (1) in the soil, thereby causing resistance changes and current changes; and the defect protection component (8) is used to protect the grounding pole (1) from tipping over due to external vibration and wind and sand problems.

2. A high-voltage cable grounding system defect detection device based on signal injection according to claim 1, characterized in that: The defect detection component (7) comprises a support plate (701), the bottom end of the support plate (701) is fixedly connected with cone spikes (702) at equal distances, and the support plate (701) is symmetrically fixedly connected with a side plate member A (703).

3. A high-voltage cable grounding system defect detection device based on signal injection according to claim 2, characterized in that: A sliding groove (704) is provided in the side plate A (703), and a through adjustment hole (705) is provided on the side plate A (703).

4. A high-voltage cable grounding system defect detection device based on signal injection according to claim 3, characterized in that: A sliding plate (706) is slidably connected inside the adjustment hole (705), a sleeve (707) is movably inserted into the sliding plate (706), and a fastening screw (708) is threadedly connected to the outer end of the sleeve (707) via a built-in thread.

5. A high-voltage cable grounding system defect detection device based on signal injection according to claim 4, characterized in that: A strain gauge (709) is fixedly connected in the sleeve (707), a fixing ring (710) is fixedly connected in the fastening screw (708) and located on one side of the strain gauge (709), and a spring (711) is fixedly connected on a side of the fixing ring (710) away from the strain gauge (709).

6. A high-voltage cable grounding system defect detection device based on signal injection according to claim 4, characterized in that: A sliding push post (712) is slidably inserted in the sleeve (707), and one end of the sliding push post (712) away from the sleeve (707) is fixedly connected to a cover shell (713).

7. A high-voltage cable grounding system defect detection device based on signal injection according to claim 2, characterized in that: The defect protection component (8) comprises a local hole (801) extending through a support plate (701), a side plate component B (802) being symmetrically fixedly connected to the support plate (701), and an auxiliary cavity (803) being provided in the side plate component B (802).

8. The high-voltage cable grounding system defect detection device based on signal injection according to claim 1 is characterized in that: A covering ring (804) is sleeved on the grounding pole (1), a movable column (805) is symmetrically fixedly connected to the outer end of the covering ring (804) in an annular surface, and an inclined piece (806) is fixedly connected to the movable column (805).

9. A high-voltage cable grounding system defect detection device based on signal injection according to claim 7, characterized in that: A guide plate (807) is fixedly connected to the inner cavity of the side plate B (802), a connecting rod (808) is movably plugged into the guide plate (807), and a counterweight block (809) is fixedly connected to the bottom end of the connecting rod (808).

10. A high-voltage cable grounding system defect detection device based on signal injection according to claim 9, characterized in that: One end of the connecting rod (808) away from the counterweight (809) is fixedly connected to a vertical rod (810), an oblique groove (811) is provided on the vertical rod (810), and a plugging piece (812) is provided at the bottom end of the side plate B (802).

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