Ground wire hitching state monitoring device and ground rod and ground wire monitoring system using same

Abstract

A ground wire hanging state monitoring device, a ground rod using the same and a ground wire monitoring system are installed on the ground rod and used for monitoring the hanging state of the ground rod and a ground wire, and the ground wire hanging state monitoring device comprises two stroke sliding blocks installed in a shell, a PCB control board and a power source. The two stroke sliding blocks are oppositely arranged and electrically connected with the power source respectively, the bottoms of the two stroke sliding blocks protrude out of the shell, when the grounding rod is hung on a ground wire, the two stroke sliding blocks are connected with the ground wire to form a conduction circuit, and the two stroke sliding blocks are electrically connected with the control panel. The two stroke sliding blocks are arranged to make contact with the ground wire and form a circuit conduction signal to serve as a signal of the hanging state of the ground wire, the ground wire conduction state signal is processed through the PCB control board, monitoring of the hanging state of the ground wire is achieved, and reliable and accurate monitoring of the hanging state of the ground wire can be achieved. And the structure is simple and easy to realize.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer substation grounding wires, in particular to a grounding wire hanging state monitoring device and a grounding rod and a grounding wire monitoring system using the same. Background Art

[0002] High-voltage grounding wire (hereinafter referred to as grounding wire) is a temporary grounding device used to prevent sudden power supply to equipment and lines, eliminate induced voltage, and discharge residual charge. It is mainly composed of grounding rod, grounding clamp, grounding copper wire and insulating rod. When performing grounding operation, you need to manually hold the insulating rod, hang the grounding clamp on the conductor to be grounded, and then clamp the grounding clamp to the grounding conductor.

[0003] After the distribution network dispatching is centralized, the business is centralized, and the risks are relatively concentrated. The problem of the lack of technical monitoring means for on-site safety risks in the distribution network dispatching is becoming more and more prominent. The distribution network grounding wire needs to be installed or removed frequently. Due to the lack of intelligent and automated management and control means to assist on-site intelligent supervision and control, the grounding wire is manually operated during the hanging process. It is easy to hang up by mistake, remove by mistake, miss hanging, miss removing, and hang up in place, which may even lead to major safety accidents in serious cases.

[0004] At present, the existing technical solution is to add a detection component to the grounding clamp. After the grounding wire is hung, the probe in the detection component contacts the conductor to be detected, and the probe and the conductor to be detected form a loop to confirm the hanging. However, the probe structure of this type of detection component is relatively precise and weak in strength. When the grounding rod is manually hung, the impact force between the grounding clamp and the conductor is relatively large. Long-term use will cause wear to the probe, and there may be hidden dangers of poor contact or failure. Utility Model Content

[0005] In response to the problems raised by the background technology, the purpose of the utility model is to propose a ground wire hanging status monitoring device and a ground rod and a ground wire monitoring system using the same, which solves the problem that the current ground wire hanging detection probe is easily worn out, resulting in poor ground wire hanging effect or failure, and the ground wire hanging status cannot be accurately grasped.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A ground wire hooking state monitoring device is installed on a ground rod and is used to monitor the hooking state of the ground rod and the ground wire, comprising a housing, two travel sliders, a PCB control board and a power supply, wherein the two travel sliders, the PCB control board and the power supply are installed in the housing;

[0008] The two stroke sliders are arranged opposite to each other and are electrically connected to the power supply respectively. The bottoms of the two stroke sliders protrude from the shell. When the grounding rod is hung on the ground wire, the two stroke sliders are connected to the ground wire to form a conductive circuit. The two stroke sliders are electrically connected to the control board.

[0009] Preferably, the two travel sliders are respectively provided with magnets, the PCB control board is provided with two reed switches, and the two magnets correspond to the two reed switches one by one;

[0010] The two travel slide blocks can move up and down relative to the housing to make the magnet approach or move away from the reed switch.

[0011] Preferably, the PCB control board is installed above the two travel sliders through a PCB board bracket, and an elastic member is provided between the travel slider and the PCB board bracket.

[0012] Preferably, the housing comprises a front housing and a rear housing, and movable grooves are respectively provided at the bottom of the front housing and the bottom of the rear housing;

[0013] The travel slider includes a sensing part and a sliding part. The sensing part is located at the upper part of the forming slider, the sensing part is arranged in the shell, and the magnet is installed on the sensing part; the sliding part is located at the lower part of the forming slider, the sliding part protrudes from the shell, and the sliding part moves up and down in the movable groove.

[0014] Preferably, the area of ​​the horizontal cross section of the sensing portion is larger than the area of ​​the horizontal cross section of the sliding portion and the area of ​​the horizontal cross section of the movable groove.

[0015] Preferably, an indicator light is also included, and the indicator light is electrically connected to the PCB control board.

[0016] A grounding rod, comprising a grounding wire clamp, an insulating rod, a conductor and the above-mentioned grounding wire hanging state monitoring device;

[0017] The grounding wire clamp comprises a moving contact and a stationary contact, a threaded hole is provided at the bottom of the stationary contact, a screw is provided at the top of the insulating rod, the insulating rod is connected to the moving contact through the threaded hole at the bottom of the stationary contact by the screw, a hanging part is provided between the top of the moving contact and the top of the stationary contact, and the upper and lower distances of the hanging part can be adjusted by rotating the insulating rod to clamp or loosen the ground wire;

[0018] The ground wire hanging state monitoring device is installed on the upper part of the ground wire clamp, and the bottom of the travel slider is located at the hanging part.

[0019] Preferably, the ground wire hanging state monitoring device is installed and connected with the ground wire clamp through a mounting bracket, and the mounting bracket includes an upper mounting part and a lower mounting part, the upper mounting part is used to install and fix the ground wire hanging state monitoring device, and the lower mounting part is used to install and fix the ground wire clamp.

[0020] A ground wire monitoring system comprises a host computer and the above-mentioned ground rod, wherein the PCB control board is communicatively connected with the host computer.

[0021] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0022] 1. The ground wire connection state monitoring device provided by the utility model is configured with two travel sliders that are respectively in contact with the ground wire and form a circuit conduction signal as a ground wire connection state signal, and the ground wire connection state is monitored by processing the ground wire conduction state signal by the PCB control board. The ground wire connection state monitoring device provided by the utility model can realize reliable and accurate monitoring of the connection state of the ground wire, and has the advantages of simple structure and easy implementation.

[0023] 2. By setting the magnet and the reed switch as the second state detection component, the ground wire connection can be determined only when the PCB control board obtains two state signals at the same time, which further improves the reliability and accuracy of the monitoring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the grounding rod of the utility model;

[0025] Figure 2 It is an exploded view of the ground wire hooking status monitoring device of the utility model;

[0026] Figure 3 It is a schematic diagram of the grounding rod and grounding wire of the utility model;

[0027] Figure 4 A schematic diagram of another perspective of the grounding rod hanging grounding wire of the utility model;

[0028] Figure 5 It is a cross-sectional view of a grounding rod and a grounding wire of the utility model;

[0029] Figure 6 It is a cross-sectional view of the grounding rod hanging grounding wire of the utility model from another perspective;

[0030] Figure 7 It is a cross-sectional view of the grounding rod of the utility model with the ground wire removed;

[0031] Figure 8 This is a cross-sectional view from another perspective of removing the ground wire from the ground rod of the utility model.

[0032] Wherein: ground wire 0, ground wire hanging state monitoring device 1, shell 11, front shell 111, rear shell 112, movable slot 110, travel slider 12, induction part 121, sliding part 122, PCB control board 13, power supply 14, magnet 15, reed switch 16, PCB board bracket 17, elastic member 18, indicator light 19,

[0033] A grounding clamp 2, a moving contact 21, a stationary contact 22, an insulating rod 3, a conductor 4 and a mounting bracket 5. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first", "second" and "third" may explicitly or implicitly include one or more of the features.

[0037] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0038] The following is combined with Figures 1 to 8 The technical solution of the utility model is further illustrated by specific implementation methods.

[0039] A ground wire hooking state monitoring device is installed on a ground rod and is used to monitor the hooking state of the ground rod and the ground wire 0, comprising a housing 11, two travel sliders 12, a PCB control board 13, and a power supply 14, wherein the two travel sliders 12, the PCB control board 13 and the power supply 14 are installed in the housing 11;

[0040] The two travel sliders 12 are arranged opposite to each other and are electrically connected to the power supply 14 respectively. The bottoms of the two travel sliders 12 protrude from the housing 11. When the grounding rod is hung on the ground wire 0, the two travel sliders 12 are connected to the ground wire 0 to form a conductive circuit. The two travel sliders 12 are electrically connected to the PCB control board 13.

[0041] As a first aspect of the present utility model, Figure 1 As shown, the ground wire connection status monitoring device 1 is installed on the top of the ground rod to monitor the connection status between the ground rod and the ground wire 0. Figure 2 As shown, the ground wire hooking state monitoring device 1 includes two stroke sliders 12 installed in the housing 11, a PCB control board 13 and a power supply 14. The two stroke sliders 12 are respectively connected to the power supply 14 and are arranged opposite to each other at intervals. When the ground rod is not hooked to the ground wire 0, the two stroke sliders 12 and the power supply 14 are in a circuit disconnection state; when the ground rod is hooked to the ground wire 0, the ground wire 0 connects the two stroke sliders 12 to form a conductive circuit. Since the two stroke sliders 12 are also electrically connected to the PCB control board 13, when the ground wire 0 is conductive with the two stroke sliders 12, a ground wire conductive state signal is formed, and the signal is fed back to the PCB control board 13. It is worth noting that, on the one hand, if the hooked object is non-metal, it cannot be in a conductive state with the two stroke sliders 12; on the other hand, if the hooked object only contacts the stroke slider 12 on one side, then even if the hooked object is a conductor, a circuit loop cannot be formed, and the above two situations will not form a ground wire conductive state.

[0042] To further illustrate, the PCB control board 13 can be connected to the host computer of the detection system and feed back the status signal to the host computer, which will analyze and process it and distribute it to each user end; it can also be connected to functional components such as electric bells or indicator lights to indicate the operator's ground wire connection status through ringing bells or lighting signals.

[0043] The ground wire hanging state monitoring device provided by the utility model is configured with two travel sliders 12 to contact the ground wire 0 respectively and form a circuit conduction signal as a ground wire hanging state signal, and the ground wire hanging state is monitored by processing the ground wire conduction state signal by the PCB control board 13. The ground wire hanging state monitoring device provided by the utility model can realize reliable and accurate monitoring of the hanging state of the ground wire, and has the advantages of simple structure and easy implementation.

[0044] Furthermore, the two travel sliders 12 are respectively provided with magnets 15, and the PCB control board 13 is provided with two reed switches 16, and the two magnets 15 correspond to the two reed switches 16 one by one;

[0045] The two travel slide blocks 12 can move up and down relative to the housing 11 to make the magnet 15 approach or move away from the reed switch 16 .

[0046] In order to further improve the reliability and safety of the ground wire hooking, a magnetic induction component is also provided in the ground wire hooking state monitoring device 1. Specifically, magnets 15 are provided on the two travel sliders 12, and a reed switch 16 is provided on the PCB control board 13 for induction connection with the two magnets 15 in a one-to-one correspondence, and the travel slider 12 can move up and down relative to the housing 11. When the travel slider 12 approaches the PCB control board 13 to the induction distance, the magnet 15 will be induction with the reed switch 16, and the reed switch 16 will feed back the induction signal to the PCB control board 13.

[0047] To further explain, the ground wire hanging state monitoring device 1 is installed on the ground rod and used in conjunction with the ground rod. When the ground rod is hung on the ground wire 0, the ground wire 0 is connected to the two travel sliders 12 to form a ground wire conduction. In order to ensure that the ground rod and the ground wire 0 are tightly and firmly hung during construction and maintenance, the ground rod and the ground wire 0 are usually pressed or clamped. During the clamping process, the ground wire 0 and the ground wire rod are squeezed against each other, which is equivalent to the ground wire 0 and the two travel sliders 12 of the ground wire hanging state monitoring device 1 being pressed. The travel slider 12 is close to the PCB control board 13 inside the shell 11 during the pressing process of the ground wire 0. When it is close to the sensing distance, the magnet 15 and the reed switch 16 are inductively coupled. Therefore, the induction between the magnet 15 and the reed switch 16 is used as a signal of the ground wire hanging state, and the signal is fed back to the host computer through the PCB control board 13.

[0048] It is worth noting that in the ground wire hooking state monitoring device 1 of the present embodiment, two states need to be satisfied to trigger the ground wire hooking completion state: one is the conductive state between the ground wire 0 and the two travel sliders 12 (first state), and the other is the ground wire hooking state (second state) in which the two magnets 15 are respectively induced by the two reed switches 16. If both states are satisfied at the same time, the ground wire hooking completion state is triggered, and both states are indispensable. The ground wire hooking state is monitored and determined by two state monitoring signals, which further improves the reliability and accuracy of the monitoring device.

[0049] Furthermore, the PCB control board 13 is installed above the two travel sliders 12 through a PCB board bracket 17 , and an elastic member 18 is provided between the travel slider 12 and the PCB board bracket 17 .

[0050] An elastic member is provided between the two travel sliders 12 and the PCB bracket 17, and after the grounding rod and the ground wire 0 are removed, the travel slider 12 can be restored to protrude outside the housing 11 under the elastic force of the elastic member. Preferably, the elastic member is a spring.

[0051] Furthermore, the housing 11 includes a front housing 111 and a rear housing 112, and a movable groove 110 is provided at the bottom of the front housing 111 and the bottom of the rear housing 112 respectively;

[0052] The travel slider 12 includes a sensing portion 121 and a sliding portion 122. The sensing portion 121 is located at the upper portion of the forming slider 12. The sensing portion 121 is disposed in the shell 11. The magnet 15 is installed on the sensing portion 121. The sliding portion 122 is located at the lower portion of the forming slider 12. The sliding portion 122 protrudes from the shell 11. The sliding portion 122 moves up and down in the movable groove 110.

[0053] like Figure 2 As shown, the housing 11 is assembled from a front housing 111 and a rear housing 112 . The detachable housing 11 makes installation and maintenance of various components more convenient.

[0054] The travel slider 12 includes an upper sensing portion 121 and a lower sliding portion 122. The magnet 15 is installed on the sensing portion 121. The sliding portion 122 protrudes from the bottom of the shell 11 through a movable groove 110 opened at the bottom of the front shell 111 / rear shell 112, and can move up and down in the movable groove 110. At the same time, the movable groove 110 plays a role in limiting and guiding the sliding portion 122.

[0055] Furthermore, the area of ​​the horizontal cross section of the sensing portion 121 is larger than the area of ​​the horizontal cross section of the sliding portion 122 and the area of ​​the horizontal cross section of the movable groove 110 .

[0056] The horizontal cross-sectional area of ​​the sensing portion 121 is larger than the horizontal cross-sectional area of ​​the movable groove 110 , which can ensure that the travel slider 12 will not be separated from the housing 11 as a whole.

[0057] Furthermore, an indicator light 19 is also included, and the indicator light 19 is electrically connected to the PCB control board 13. The indicator light 19 is connected to the PCB control board 13, and when the PCB control board 13 receives a signal indicating that the ground wire is connected, the indicator light 19 can be controlled to light up to intuitively show the state of the ground wire connection to the operator.

[0058] A grounding rod, comprising a grounding wire clamp 2, an insulating rod 3, a conductor 4 and the above-mentioned ground wire hanging state monitoring device 1;

[0059] The grounding clamp 2 includes a moving contact 21 and a stationary contact 22, a threaded hole is provided at the bottom of the stationary contact 22, a screw is provided at the top of the insulating rod 3, the insulating rod 3 is connected to the moving contact 21 through the screw passing through the threaded hole at the bottom of the stationary contact 22, a hanging part is provided between the top of the moving contact 21 and the top of the stationary contact 22, and the upper and lower distances of the hanging part can be adjusted by rotating the insulating rod 3 to clamp or loosen the ground wire 0;

[0060] The ground wire hanging state monitoring device 1 is installed on the upper part of the ground wire clamp 2, and the bottom of the travel slider 12 is located at the hanging part.

[0061] The ground wire hanging state monitoring device 1 is installed on the upper part of the ground wire clamp 2. When the ground wire clamp 2 is hung on the ground wire 0, the two stroke sliders 12 of the ground wire hanging state monitoring device 1 contact the ground wire 0, triggering the first state and feeding back to the PCB control board 13; the moving contact 21 is driven to approach the top of the moving contact 21 by rotating the insulating rod 3, reducing the distance of the hanging part to clamp the ground wire 0. In the process of clamping the ground wire 0, the ground wire 0 compresses the stroke slider 12 so that its sensing part 121 is close to the PCB control board 13. When the magnet 15 and the reed switch 16 are inductively sensed, the second state is triggered and fed back to the PCB control board 13. After the PCB control board 13 receives the two state signals, the control indicator light 19 lights up, indicating that the ground rod completes the ground wire hanging; the PCB control board 13 can also transmit the combined signal of the ground wire hanging completion to the host computer, which is coordinated and processed by the hanging system.

[0062] Furthermore, the ground wire hanging status monitoring device 1 is installed and connected to the ground wire clamp 2 through a mounting bracket 5, and the mounting bracket 5 includes an upper mounting part and a lower mounting part, the upper mounting part is used to install and fix the ground wire hanging status monitoring device 1, and the lower mounting part is used to install and fix the ground wire clamp 2.

[0063] The ground wire hooking state monitoring device 1 and the ground wire clamp 2 are fastened by bolts, nuts and other accessories through the mounting bracket 5 to complete the installation. The mounting bracket 5 includes an upper mounting part and a lower mounting part formed in one piece, the upper mounting part is used to be mounted and connected with the ground wire hooking state monitoring device 1, and the lower mounting part is used to be mounted and connected with the ground wire clamp 2, so that the structure of the ground rod is more compact and the detection of the ground wire state is more accurate.

[0064] A ground wire monitoring system comprises a host computer and the above-mentioned ground rod, wherein the PCB control board 13 is communicatively connected with the host computer.

[0065] The ground wire connection status monitoring device 1 uploads the connection status and removal status of the ground wire 0 to the host computer in the background through communication signals, and the host computer can display the connection status of the ground wire in real time; it can also upload the status to the handheld terminal via Bluetooth.

[0066] The working principle of the ground wire monitoring system in this embodiment is as follows:

[0067] 1. Ground wire connection status collection / monitoring:

[0068] like Figures 3 to 6 As shown, when the ground wire hanging state monitoring device 1 is hung on the ground wire 0, since the ground wire 0 is a conductive material, when the two stroke sliders 12 of the ground wire hanging state monitoring device 1 contact the ground wire 0, a loop is formed, forming a ground wire conduction state (first state), and the first state is obtained and uploaded to the host computer through the PCB control board 13; then the insulating rod 3 is rotated, and the insulating rod 3 drives the moving contact 21 to move upward. When the moving contact 21 contacts the ground wire 0, in the process of the moving contact 21 continuing to move upward, the ground wire 0 will compress the stroke slider 12 and move upward together. Since there is an elastic member 18 inside the stroke slider, the stroke slider 12 and the ground wire 0 are always in contact. When the moving contact 21 and the stationary contact 22 jointly clamp the ground wire 0, the magnet 15 inside the travel slider 12 senses the reed switch 16 of the PCB control board 13, triggering the ground wire tightening state (the second state), and the second state is obtained and uploaded to the host computer through the PCB control board 13 (it should be noted that the two groups of magnets 15 must respectively sense the corresponding reed switches 16 to obtain the second state). When the host computer receives the two states, it determines that the ground wire hanging is completed.

[0069] It should be noted here that: triggering the ground wire hanging completion state requires two conditions, one is the ground wire conduction state, the other is the ground wire hanging state, the two states form the final ground wire hanging state, both states are indispensable.

[0070] 2. Ground wire removal status collection:

[0071] Rotate the insulating rod 3, the distance between the hanging part of the moving contact 21 and the static contact 22 becomes larger, and after the direct ground wire 0 is out of the clamped state, the magnet 15 in the travel slider 12 and the reed switch 16 on the PCB control board 13 lose their induction effect. At this time, the ground wire hanging state (second state) is cancelled, and the signal is uploaded to the host computer through the PCB control board 13; continue to rotate the insulating rod 3 until the ground wire 0 can be taken out of the ground wire clamp 2, then the connection between the ground wire 0 and the two travel sliders 12 is disconnected, the ground wire conduction state (first state) is cancelled, and the signal is uploaded to the host computer through the PCB control board 13. The host computer obtains that the two states are cancelled and determines that the ground wire removal is completed. It is worth noting that: triggering the ground wire removal state also requires two conditions, one is the ground wire removal state (the second state is cancelled), and the other is the ground wire disconnection state (the first state is cancelled). The two states form the final ground wire removal state, and neither is indispensable.

[0072] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A ground wire connection status monitoring device, installed on a ground rod, for monitoring the connection status between the ground rod and the ground wire (0), characterized in that: It comprises a housing (11), two travel sliders (12), a PCB control board (13) and a power supply (14), wherein the two travel sliders (12), the PCB control board (13) and the power supply (14) are installed in the housing (11); The two travel sliders (12) are arranged opposite to each other and are electrically connected to the power supply (14) respectively. The bottoms of the two travel sliders (12) protrude from the housing (11). When the grounding rod is hung on the ground wire (0), the two travel sliders (12) are connected to the ground wire (0) to form a conducting circuit. The two travel sliders (12) are electrically connected to the PCB control board (13).

2. A ground wire hanging state monitoring device according to claim 1, characterized in that: The two travel slide blocks (12) are respectively provided with magnets (15), the PCB control board (13) is provided with two reed switches (16), and the two magnets (15) correspond to the two reed switches (16) in a one-to-one manner; The two travel slide blocks (12) can move up and down relative to the housing (11) to make the magnet (15) approach or move away from the reed switch (16).

3. A ground wire hanging state monitoring device according to claim 2, characterized in that: The PCB control board (13) is installed above the two travel sliders (12) via a PCB board bracket (17), and an elastic member (18) is provided between the travel slider (12) and the PCB board bracket (17).

4. A ground wire hooking status monitoring device according to claim 3, characterized in that: The housing (11) comprises a front housing (111) and a rear housing (112), and a movable groove (110) is provided at the bottom of the front housing (111) and the bottom of the rear housing (112) respectively; The travel slider (12) comprises a sensing part (121) and a sliding part (122), wherein the sensing part (121) is located at the upper part of the travel slider (12), the sensing part (121) is arranged in the housing (11), and the magnet (15) is installed on the sensing part (121); the sliding part (122) is located at the lower part of the travel slider (12), the sliding part (122) protrudes from the housing (11), and the sliding part (122) moves up and down in the movable groove (110).

5. A ground wire hanging state monitoring device according to claim 4, characterized in that: The area of ​​the horizontal cross section of the sensing portion (121) is respectively greater than the area of ​​the horizontal cross section of the sliding portion (122) and the area of ​​the horizontal cross section of the movable groove (110).

6. A ground wire hanging state monitoring device according to any one of claims 1 to 5, characterized in that: It also includes an indicator light (19), and the indicator light (19) is electrically connected to the PCB control board (13).

7. A grounding rod, characterized in that: It comprises a grounding wire clamp (2), an insulating rod (3), a conductor (4) and a grounding wire hanging state monitoring device (1) according to any one of claims 1 to 6; The grounding wire clamp (2) comprises a moving contact (21) and a stationary contact (22), the bottom of the stationary contact (22) is provided with a threaded hole, the top of the insulating rod (3) is provided with a screw, the insulating rod (3) is connected to the moving contact (21) by the screw passing through the threaded hole at the bottom of the stationary contact (22), a hanging part is formed between the top of the moving contact (21) and the top of the stationary contact (22), and the upper and lower distances of the hanging part can be adjusted by rotating the insulating rod (3), so as to clamp or loosen the ground wire (0); The ground wire hooking state monitoring device (1) is installed on the upper part of the ground wire clamp (2), and the bottom of the travel slider (12) is located at the hooking part.

8. A grounding rod according to claim 7, characterized in that: The ground wire hanging state monitoring device (1) is installed and connected to the ground wire clamp (2) via a mounting bracket (5), and the mounting bracket (5) comprises an upper mounting portion and a lower mounting portion, the upper mounting portion is used to install and fix the ground wire hanging state monitoring device (1), and the lower mounting portion is used to install and fix the ground wire clamp (2).

9. A ground line monitoring system, characterized in that: It comprises a host computer and a grounding rod as claimed in any one of claims 7 or 8, wherein the PCB control board (13) is communicatively connected with the host computer.

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