Single-phase grounding device

Abstract

The utility model relates to a single-phase grounding device. The grounding device comprises a wire hanging frame, an insulating rope and a grounding mechanism. Wherein the insulating rope is connected with the wire hanging frame; the grounding mechanism is connected with the insulating rope and can move along the length direction of the insulating rope; the grounding mechanism comprises a first clamping part, a second clamping part, a pressure sensor and an indicating lamp, and the first clamping part and the second clamping part are detachably enclosed to form an annular structure; the pressure sensor is arranged between the first clamping part and the second clamping part and used for detecting the pressure of the contact position of the first clamping part and the second clamping part, and the indicator lamp is electrically connected with the pressure sensor and can switch the indication state according to the pressure detected by the pressure sensor. The grounding mechanism can ascend and descend along the insulating rope. According to the single-phase grounding device, the first clamping part is in contact with the second clamping part to clamp structures such as a wire or a grounding ring, whether the first clamping part and the second clamping part are in stable contact or not can be visually indicated according to the indicating lamp, and therefore the single-phase grounding device is easy to operate, time-saving, labor-saving and high in safety.

Description

Technical Field

[0001] This application relates to the field of power equipment technology, and in particular to a single-phase grounding device. Background Technology

[0002] Currently, overhead power distribution lines are widely used in power transmission. Because these cables are installed outdoors, they are greatly affected by the environment, making them prone to failure. When an overhead power distribution cable fails, it needs to be inspected and maintained. During the inspection process, a single-phase grounding device is typically used to attach a grounding wire to the corresponding overhead cable. This creates a path between the cable's conductors and the ground through the grounding ring and grounding wire, preventing injury to maintenance personnel from sudden power surges.

[0003] In related technologies, single-phase grounding devices typically have a clamping part for clamping faulty overhead cables and a grounding structure that contacts the ground, creating a path between the faulty cable and the ground to prevent injury to maintenance personnel from sudden power surges. Because overhead cables are located at a high position, maintenance requires grounding the single-phase grounding device and then moving it from a lower position to a higher position where the cable is located for clamping. For ease of clamping, the clamping part is usually located at the top of the single-phase grounding device.

[0004] However, during the installation of the aforementioned single-phase grounding device, maintenance personnel are typically positioned at a low level. The clamping part is obstructed by the grounding device, making it difficult for them to directly observe whether the clamping part is stably clamped to the overhead cable. This makes it difficult to determine whether the single-phase grounding device is stably connected to the overhead cable. Maintenance personnel need to move to a higher position to observe the clamping part, which is time-consuming, labor-intensive, relatively unsafe, and difficult to operate. Utility Model Content

[0005] Therefore, it is necessary to provide a single-phase grounding device to address the problem that it is difficult to observe the connection status between the single-phase grounding device and the overhead cable when installing the single-phase grounding device.

[0006] This application provides a single-phase grounding device, which includes:

[0007] Cable hanger;

[0008] An insulating rope is connected to the hanging frame;

[0009] A grounding mechanism is connected to the insulating rope and can move along the length of the insulating rope. The grounding mechanism includes a first clamping part, a second clamping part, a pressure sensor, and an indicator light. The first clamping part and the second clamping part are detachably enclosed to form a ring structure. The pressure sensor is located between the first clamping part and the second clamping part and is used to detect the pressure at the contact position between the first clamping part and the second clamping part. The indicator light is electrically connected to the pressure sensor and can switch the indication state according to the pressure detected by the pressure sensor.

[0010] In some embodiments, the grounding mechanism further includes a housing connected to the insulating rope; both the first clamping portion and the second clamping portion are connected to the housing, and the indicator light is located on the side of the housing away from the first clamping portion.

[0011] In some embodiments, the grounding mechanism further includes a winch connected to the housing, the winch being connected to the insulating rope and movable along the length of the insulating rope.

[0012] In some embodiments, the winch includes a reel, a brake block, a wheel cover, a knob, and a first motor. The wheel cover is disposed outside the reel and is detachably connected to the housing via the knob. The insulating rope is wound around the outer periphery of the reel, and the brake block is disposed on the side of the reel and abuts against the insulating rope. The reel is connected to the output shaft of the first motor.

[0013] In some embodiments, the grounding mechanism further includes a lead screw and a second motor. The first clamping part is fixedly connected to the housing, and the second motor is disposed inside the housing. The lead screw is connected to the second motor, and the second clamping part is connected to the lead screw. The second motor is used to drive the lead screw to rotate, so that the second clamping part moves along the length direction of the lead screw.

[0014] In some embodiments, the first clamping part includes a clamping block, the second clamping part includes a hook, the clamping block is fixedly connected to the housing, and the hook is connected to the lead screw; the pressure sensor is located at the end where the clamping block contacts the hook or the end where the hook contacts the clamping block.

[0015] In some embodiments, the grounding mechanism further includes a grip handle connected to the housing.

[0016] In some embodiments, the grounding mechanism further includes a connecting portion and a grounding wire, the connecting portion being electrically connected to the first clamping portion and / or the second clamping portion, and the grounding wire being detachably connected to the connecting portion.

[0017] In some embodiments, the grounding mechanism further includes a metal strip, one end of which is connected to the first clamping portion and / or the second clamping portion, and the other end of which is connected to the connecting portion.

[0018] In some embodiments, the hanging frame has a threading hole through which the insulating rope is threaded.

[0019] The aforementioned single-phase grounding device includes a hanging frame that suspends the insulating rope at the cable location, with the end of the rope extending to the ground. The grounding mechanism can rise along the insulating rope from the ground to the hanging frame (i.e., at the cable location), eliminating the need for maintenance personnel to carry the bulky grounding mechanism to a high position for installation, thus improving the safety and efficiency of maintenance. In the non-use state, the first and second clamping parts are not in contact. When the grounding mechanism rises to the hanging frame location, the first and second clamping parts come into contact to clamp the overhead cable conductors or grounding rings. Since a pressure sensor can detect the pressure at the contact point between the first and second clamping parts, and an indicator light is electrically connected to the pressure sensor, the indicator light can visually indicate whether the first and second clamping parts are in stable contact. This makes the single-phase grounding device easy to operate, time-saving, labor-saving, and highly safe. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of one embodiment of a single-phase grounding device according to this application.

[0021] Figure 2 This is a schematic diagram of the structure of one side of the bottom of the housing of an embodiment of a single-phase grounding device according to this application.

[0022] Figure 3 This is a schematic diagram of the disassembled structure of the winch section of one embodiment of a single-phase grounding device according to this application.

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0024] Figure 5 This is a schematic diagram of the internal structure of the housing of one embodiment of a single-phase grounding device according to this application.

[0025] In the diagram, 100 is the wire hanger; 110 is the wire hole; 200 is the insulating rope; 300 is the grounding mechanism; 310 is the first clamping part; 311 is the clamping block; 320 is the second clamping part; 321 is the hook; 330 is the indicator light; 340 is the housing; 350 is the winch part; 351 is the reel; 352 is the brake block; 353 is the wheel cover; 354 ​​is the knob; 360 is the lead screw; 361 is the second motor; 370 is the grip handle; 380 is the connecting part; 381 is the grounding wire; and 390 is the metal strip. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0028] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0032] See Figure 1 , Figure 2 and Figure 5 , Figure 1 A schematic diagram of a single-phase grounding device according to an embodiment of this application is shown; Figure 2 This is a schematic diagram of the structure of one side of the bottom end of the housing according to one embodiment of this application; Figure 5This is a schematic diagram of the internal structure of the housing according to one embodiment of this application. An embodiment of this application provides a single-phase grounding device including a hanging bracket 100, an insulating rope 200, and a grounding mechanism 300. The insulating rope 200 is connected to the hanging bracket 100. The grounding mechanism 300 is connected to the insulating rope 200 and can move along the length of the insulating rope 200. The grounding mechanism 300 includes a first clamping part 310, a second clamping part 320, a pressure sensor (not shown), and an indicator light 330. The first clamping part 310 and the second clamping part 320 are detachably enclosed to form a ring structure. The pressure sensor is disposed between the first clamping part 310 and the second clamping part 320 and is used to detect the pressure at the contact position of the first clamping part 310 and the second clamping part 320. The indicator light 330 is electrically connected to the pressure sensor and can switch its indication state according to the pressure detected by the pressure sensor.

[0033] See Figure 1 , Figure 2 and Figure 5 Preferably, the cable hanger 100 is hung on the overhead cable requiring maintenance, and the insulating rope 200 is connected to the cable hanger 100 and hangs down under gravity. The grounding mechanism 300 can be raised and lowered by moving along the length of the insulating rope 200 to adjust its height. The first clamping part 310 and the second clamping part 320 cooperate to surround the outer circumference of the overhead cable conductor or grounding ring to clamp the conductor or grounding ring. When the first clamping part 310 and the second clamping part 320 come into contact, the pressure sensor detects the pressure, and the indicator light 330 illuminates, indicating that the first clamping part 310 and the second clamping part 320 are in stable contact.

[0034] It should be noted that the indicator state of the switching indicator light 330 includes, but is not limited to, changing from dark to bright, from off to on, and from red to green. For example, when the first clamping part 310 and the second clamping part 320 are not in contact, the indicator light 330 is off. When the first clamping part 310 and the second clamping part 320 form a ring structure, and the pressure sensor detects that the pressure reaches a certain value, the indicator light 330 illuminates, thus indicating that the first clamping part 310 and the second clamping part 320 are stably engaged. Preferably, the indicator state of the indicator light 330 only changes when the pressure value detected by the pressure sensor reaches a certain value, in order to avoid unstable clamping between the first clamping part 310 and the second clamping part 320.

[0035] In use, the cable hanger 100 is mounted on the conductor or grounding ring of the overhead cable to be inspected via an insulated support pole or drone, with the insulated rope 200 hanging down to the ground. Then, the grounding mechanism 300 is grounded, creating a path between the grounding mechanism 300 and the ground, and the insulated rope 200 is connected to the grounding mechanism 300. At this point, the first clamping part 310 and the second clamping part 320 are not in contact, forming a loop structure. The grounding mechanism 300 is adjusted so that it rises along the insulated rope 200 to the position of the cable hanger 100, maintaining grounding during its ascent. Then, the first clamping part 310 and the second clamping part 320 surround the conductor or grounding ring of the overhead cable to clamp it. When the first clamping part 310 and the second clamping part 320 are in stable contact, the pressure sensor detects that the pressure between the first clamping part 310 and the second clamping part 320 has reached a predetermined value, and the indicator light 330 changes its state. When the user observes the change in the indication status of indicator light 330, it can be determined that the first clamping part 310 and the second clamping part 320 are stably clamping the overhead cable conductor or grounding ring; at this time, the overhead cable conductor or grounding ring forms a path with the ground through the grounding mechanism 300, and the grounding operation can be completed.

[0036] With the above configuration, a pressure sensor can detect whether the first clamping part 310 and the second clamping part 320 are stably engaged, i.e., stably clamping the conductor or grounding ring of the faulty overhead cable. The indicator light 330 indicates whether the first clamping part 310 and the second clamping part 320 are in stable contact. Users can determine whether the grounding mechanism 300 is stably clamping the conductor or grounding ring of the overhead cable by observing the indicator light 330, without needing to climb to a higher position to observe the clamping status of the first clamping part 310 and the second clamping part 320. This makes the installation process time-saving, labor-saving, and safer. The use of an insulating rope 200 prevents electrical conductivity during use, further improving safety.

[0037] Furthermore, a light emitter (not shown) and a light sensor (not shown) can be disposed between the first clamping part 310 and the second clamping part 320. In some embodiments, the light emitter is disposed on the side of the first clamping part 310 facing the second clamping part 320, and the light sensor is disposed on the side of the second clamping part 320 facing the first clamping part 310. The light emitter and the fiber optic sensor are correspondingly disposed, so that the light emitted by the light emitter directly shines on the light sensor. When the conductor or grounding ring of the faulty overhead cable is located between the first clamping part 310 and the second clamping part 320, the conductor or grounding ring of the overhead cable will block the light emitted by the light emitter, and the light sensor cannot receive the light emitted by the light emitter. Similarly, the light sensor can be electrically connected to other indicator lights 330, and the indication status of the other indicator lights 330 indicates whether the light sensor has received the light emitted by the light emitter. With the above configuration, it is possible to determine whether the conductor or grounding ring of the overhead cable is located between the first clamping part 310 and the second clamping part 320 based on the state of the light sensor, thus preventing the first clamping part 130 from being misaligned with the second clamping part 320. The above configuration is only one embodiment and does not limit the specific implementation; it is sufficient to detect whether the conductor or grounding ring of the overhead cable is located between the first clamping part 310 and the second clamping part 320.

[0038] In some embodiments, the grounding mechanism 300 further includes a housing 340 connected to the insulating rope 200; a first clamping part 310 and a second clamping part 320 are both connected to the housing 340; and an indicator light 330 is located on the side of the housing 340 away from the first clamping part 310.

[0039] See Figure 1 and Figure 5 Preferably, the housing 340 is connected to the insulating rope 200 and drives other components of the grounding mechanism 300 to move up and down along the insulating rope 200. The first clamping part 310 and the second clamping part 320 are located on one side of the housing 340 near the edge. The side of the housing 340 where the first clamping part 310 and the second clamping part 320 are located is at the highest position during installation, so as to clamp the overhead cable conductor or grounding ring located above the ground. Therefore, the side of the housing 340 where the first clamping part 310 and the second clamping part 320 are located is referred to as the top of the housing 340. The indicator light 330 is located at the bottom of the housing 340 so that the user can observe the indication status of the indicator light 330.

[0040] In some embodiments, the grounding mechanism 300 further includes a winch 350 connected to the housing 340, the winch 350 being connected to the insulating rope 200 and movable along the length of the insulating rope 200.

[0041] See Figure 1 and Figure 2Preferably, there are two winches 350, which are respectively located on opposite sides of the housing 340. The housing 340 is connected to the insulating rope 200 through the winches 350. Both winches 350 are connected to the insulating rope 200. When the two winches 350 pull or release the insulating rope 200 at the same time, the housing 340 can be raised or lowered.

[0042] In some embodiments, the winch 350 includes a reel 351, a brake block 352, a wheel cover 353, a knob 354, and a first motor (not shown). The wheel cover 353 covers the outside of the reel 351 and is detachably connected to the housing 340 via the knob 354. An insulating rope 200 is wound around the outer periphery of the reel 351. The brake block 352 is located on the side of the reel 351 and abuts against the insulating rope 200. The reel 351 is connected to the output shaft of the first motor.

[0043] See Figure 3 and Figure 4 Preferably, the reel 351 is rotatably connected to the side of the housing 340 and can rotate along its own central axis. The reel 351 and the brake block 352 are located inside the wheel cover 353. The housing 340 has a threaded hole, and the knob 354 is threadedly connected to the threaded hole to fix the wheel cover 353 to the side of the housing 340. The reel 351 and the brake block 352 are both located inside the wheel cover 353 to protect the reel 351 and the brake block 352. The insulating rope 200 is wound around the outer circumference of the reel 351. The rotation direction of the reel 351 is controlled by the first motor, which can make the reel 351 move up and down along the insulating rope 200. The insulating rope 200 is passed between the reel 351 and the brake block 352. By adjusting the distance between the brake block 352 and the reel 351, the brake block 352 can abut against the insulating rope 200, so that the reel 351 and the housing 340 cannot move along the insulating rope 200, thereby fixing the grounding mechanism 300.

[0044] In some embodiments, the grounding mechanism 300 further includes a lead screw 360 and a second motor 361. The first clamping part 310 is fixedly connected to the housing 340, and the second motor 361 is disposed inside the housing 340. The lead screw 360 is connected to the second motor 361, and the second clamping part 320 is connected to the lead screw 360. The second motor 361 is used to drive the lead screw 360 to rotate, so that the second clamping part 320 moves along the length direction of the lead screw 360.

[0045] See Figure 5Preferably, the second motor 361 is installed inside the housing 340 to drive the lead screw 360 to rotate. The lead screw 360 is horizontally positioned, and the second clamping part 320 is disposed on the lead screw 360. By controlling the rotation direction of the lead screw 360, the second clamping part 320 can move left and right along the lead screw 360. The first clamping part 310 is fixed to the housing 340 and is disposed on the movement path of the second clamping part 320. By controlling the movement direction of the second clamping part 320, the second clamping part 320 can contact or separate from the first clamping part 310. With the above configuration, the clamping of the overhead cable conductor or grounding ring by the first clamping part 310 and the second clamping part 320 can be controlled simply and quickly, effectively simplifying the installation process and saving time and effort.

[0046] In some embodiments, the first clamping part 310 includes a clamping block 311, the second clamping part 320 includes a hook 321, the clamping block 311 is fixedly connected to the housing 340, and the hook 321 is connected to the lead screw 360; the pressure sensor is located at the end where the clamping block 311 contacts the hook 321 or the end where the hook 321 contacts the clamping block 311.

[0047] See Figure 5 Preferably, the two ends of the clamping block 311 and the curved portion of the hook 321 form a ring structure. A pressure sensor is located at either the end face of the clamping block 311 that contacts the hook 321 or the end face of the hook 321 that contacts the clamping block 311. When the clamping block 311 contacts the hook 321, it compresses the pressure sensor, enabling the sensor to detect the connection status between the clamping block 311 and the hook 321. By providing the hook 321, when the clamping block 311 and the hook 321 loosen their grip on the overhead cable's conductor or grounding ring, the grounding mechanism 300 slides downwards under gravity. The hook 321 can then hook onto the overhead cable's conductor or grounding ring, preventing the grounding mechanism 300 from falling directly and improving safety.

[0048] Furthermore, the sides of the clamping block 311 facing the hook 321 and the sides of the hook 321 facing the clamping block 311 are both made with rough surfaces, or have knurled, embossed, or other structures to increase friction. This can prevent the conductors or grounding rings holding the overhead cables from slipping, causing the grounding mechanism 300 to shift.

[0049] In some embodiments, the grounding mechanism 300 also includes a grip handle 370 connected to the housing 340.

[0050] See Figure 1 Preferably, the handle 370 is fixedly connected to the side of the housing 340. When carrying or moving the grounding mechanism 300, the grounding mechanism 300 can be moved by holding the handle 370, which makes it easier for the user to move the grounding mechanism 300 and improves its mobility.

[0051] In some embodiments, the grounding mechanism 300 further includes a connecting portion 380 and a grounding wire 381, wherein the connecting portion 380 is electrically connected to the first clamping portion 310 and / or the second clamping portion 320, and the grounding wire 381 is detachably connected to the connecting portion 380.

[0052] It should be noted that the connecting part 380 can be electrically connected to the first clamping part 310 alone, or to the second clamping part 320 alone, or to both the first clamping part 310 and the second clamping part 320 simultaneously. Since both the first clamping part 310 and the second clamping part 320 are in direct contact with the conductor or grounding ring of the overhead cable, the above methods can all enable the connecting part 380 to form a path with the conductor or grounding ring of the overhead cable.

[0053] See Figure 1 and Figure 2 Since the grounding mechanism 300 needs to connect the connecting part 380 to the grounding wire 381 to complete the grounding before rising along the insulating rope 200, preferably, the connecting part 380 is located at the bottom end of the housing 340 to avoid the grounding wire 381 getting tangled around the outer periphery of the grounding mechanism 300 during its ascent, thus preventing unnecessary safety issues. The grounding wire 381 is connected to the ground, and the grounding mechanism 300 uses the grounding wire 381 to create a path between the overhead cable conductor or grounding ring and the ground, thereby achieving the grounding function and preventing injury to users from sudden power surges in the overhead cable.

[0054] In some embodiments, the grounding mechanism 300 further includes a metal strip 390, one end of which is connected to the first clamping portion 310 and / or the second clamping portion 320, and the other end of which is connected to the connecting portion 380.

[0055] It should be noted that, similarly, the metal strip 390 can be connected to the first clamping part 310 alone, or to the second clamping part 320 alone, or to both the first clamping part 310 and the second clamping part 320 simultaneously. All of these connection methods enable the overhead cable's conductor or grounding ring to form a path between the metal strip 390 and the connecting part 380.

[0056] See Figure 1 Preferably, the metal strip 390 is disposed inside the housing 340, and both the first clamping part 310 and the second clamping part 320 are made of conductive material. When the first clamping part 310 and the second clamping part 320 clamp the conductor or grounding ring of the overhead cable, and the grounding wire 381 is connected to the connecting part 380, the conductor or grounding ring of the overhead cable forms a path with the ground through the first clamping part 310 or the second clamping part 320, the metal strip 390, the connecting part 380 and the grounding wire 381, so as to realize the grounding function and prevent the overhead cable from causing injury to the user due to sudden power supply.

[0057] See again Figure 1 In some embodiments, the hanging bracket 100 has a wire hole 110 through which the insulating rope 200 passes.

[0058] Preferably, the wire hole 110 is provided on the side of the wire hanger 100, so that the two ends of the insulating rope 200 can pass out from the two sides of the wire hanger 100 respectively and be perpendicular to the ground, so that the two ends of the insulating rope 200 have a certain gap, effectively preventing the two ends of the insulating rope 200 from getting tangled in the air and affecting the operation of the user.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A single-phase grounding device, characterized in that, include: Cable hanger; An insulating rope is connected to the hanging frame; A grounding mechanism is connected to the insulating rope and can move along the length of the insulating rope. The grounding mechanism includes a first clamping part, a second clamping part, a pressure sensor, and an indicator light. The first clamping part and the second clamping part are detachably enclosed to form a ring structure. The pressure sensor is located between the first clamping part and the second clamping part and is used to detect the pressure at the contact position between the first clamping part and the second clamping part. The indicator light is electrically connected to the pressure sensor and can switch the indication state according to the pressure detected by the pressure sensor.

2. The single-phase grounding device according to claim 1, characterized in that, The grounding mechanism also includes a housing, which is connected to the insulating rope; the first clamping part and the second clamping part are both connected to the housing, and the indicator light is located on the side of the housing away from the first clamping part.

3. The single-phase grounding device according to claim 2, characterized in that, The grounding mechanism further includes a winch, which is connected to the housing and connected to the insulating rope, and can move along the length of the insulating rope.

4. The single-phase grounding device according to claim 3, characterized in that, The winch unit includes a reel, a brake block, a wheel cover, a knob, and a first motor. The wheel cover is disposed on the outside of the reel and is detachably connected to the housing via the knob. The insulating rope is wound around the outer circumference of the reel, and the brake block is disposed on the side of the reel and abuts against the insulating rope. The reel is connected to the output shaft of the first motor.

5. The single-phase grounding device according to claim 2, characterized in that, The grounding mechanism further includes a lead screw and a second motor. The first clamping part is fixedly connected to the housing, and the second motor is located inside the housing. The lead screw is connected to the second motor, and the second clamping part is connected to the lead screw. The second motor is used to drive the lead screw to rotate, so that the second clamping part moves along the length direction of the lead screw.

6. The single-phase grounding device according to claim 5, characterized in that, The first clamping part includes a clamping block, and the second clamping part includes a hook. The clamping block is fixedly connected to the housing, and the hook is connected to the lead screw. The pressure sensor is located at the end where the clamping block contacts the hook or at the end where the hook contacts the clamping block.

7. The single-phase grounding device according to claim 2, characterized in that, The grounding mechanism also includes a grip handle, which is connected to the housing.

8. The single-phase grounding device according to claim 1, characterized in that, The grounding mechanism further includes a connecting part and a grounding wire. The connecting part is electrically connected to the first clamping part and / or the second clamping part, and the grounding wire is detachably connected to the connecting part.

9. The single-phase grounding device according to claim 8, characterized in that, The grounding mechanism further includes a metal strip, one end of which is connected to the first clamping part and / or the second clamping part, and the other end of which is connected to the connecting part.

10. The single-phase grounding device according to claim 1, characterized in that, The hanging frame has a threading hole, through which the insulating rope is threaded.

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