A convenient grounding device for power distribution network

Abstract

The application relates to the technical field of electric conduction, and discloses a convenient grounding device for a power distribution network, which comprises a bottom plate, a vertical plate fixed to one end of the upper surface of the bottom plate, a fixed block fixed to the edge of the other end of the upper surface of the bottom plate and perpendicular to the extension line of the vertical plate, a guide block fixed to the other end of the upper surface of the bottom plate and arranged side by side with the fixed block, and a first clamping groove formed between the guide block and the fixed block, and an adjusting bolt arranged in the middle of the inner side of the bottom plate and sleeved with a limiting clamping assembly. The application can quickly complete the connection between two flat steels by ordinary people without professional welding personnel and equipment, can realize stable electric conduction contact, has a simple structure, can be applied to the connection of two flat steels with different lengths, widths, thicknesses and gaps, allows the flat steels not to be perpendicular to each other during the connection, and increases the application scenarios of the device.

Description

Technical Field

[0001] This invention relates to the field of conductive technology, and more specifically to a convenient grounding device for power distribution networks. Background Technology

[0002] In power distribution network systems, grounding devices are an important component for ensuring the safe operation of electrical equipment and personal safety. Grounding grids are usually made of flat steel bars connected together by welding to form a low-impedance conductive network. To cope with ground subsidence, some flat steel bars are laid vertically, which means that the originally flat flat steel bars are erected and buried vertically, forming a thickness surface at the top, in order to increase the bending section modulus of the conductor in the vertical direction and enhance the reliability and stability of the grounding grid under adverse geological conditions.

[0003] During the vertical laying of flat steel in the grounding grid, the traditional method for connecting two mutually perpendicular flat steels in a "T" shape is to use electric welding for fixing. This connection method requires professionally qualified welders, has high skill requirements, and the welding quality is greatly affected by the operator's technique. During welding, due to cutting accuracy deviations or the length limitations of the flat steel itself, there is often a certain gap at the connection point of the two flat steels. To ensure welding strength, construction personnel usually need to additionally measure the gap size and cut a short flat steel of appropriate length on site to fill the gap before welding can be carried out, which is quite laborious and time-consuming. Therefore, we propose a convenient distribution network grounding device. Summary of the Invention

[0004] The purpose of this invention is to provide a convenient grounding device for power distribution networks to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a convenient power distribution network grounding device, comprising:

[0006] A base plate, wherein a vertical plate is fixed to one end of the upper surface of the base plate;

[0007] A fixing block is fixed to the other edge of the upper surface of the base plate, and the fixing block is perpendicular to the extension line of the upright plate;

[0008] A guide block is fixed to the other end of the upper surface of the base plate to be parallel with the fixing block, and a first clamping groove is formed between the guide block and the fixing block;

[0009] An adjusting bolt is located in the middle of the inner side of the base plate, and a limiting clamping component is fitted on the adjusting bolt. At least one end of the limiting clamping component corresponds to the vertical plate to form a second clamping groove between the two.

[0010] The limiting clamping assembly has two states. In the first state, the limiting clamping assembly moves upward along the height direction of the adjusting bolt to expand the internal space of the first clamping groove and the second clamping groove. In the second state, the limiting clamping assembly moves downward along the height direction of the adjusting bolt to reduce the internal space of the first clamping groove and the second clamping groove.

[0011] Preferably, the limiting clamping assembly includes a mounting frame, a telescopic arm, and a connecting arm. The mounting frame is slidably fitted onto the adjusting bolt, and the lower end of the mounting frame is rotatably connected to a first clamping plate corresponding to the upright plate via the telescopic arm. The connecting arm is arranged side by side with the telescopic arm, and one end of the connecting arm is rotatably connected to a second clamping block corresponding to the fixing block.

[0012] Preferably, the mounting bracket includes a flat plate and a connecting block. The connecting block is fixed to the lower surface of the flat plate. One side wall of the connecting block is provided with a mounting shaft that rotatably engages with the telescopic arm and the connecting arm, respectively. The two ends of the inner side of the flat plate are provided with sliding holes that engage with adjusting bolts.

[0013] Preferably, the guide block has a first inclined surface on one side wall, the second clamping block has a second inclined surface on one side wall corresponding to the guide block, and the second inclined surface has a guide slider protruding outward on one side wall, and the first inclined surface has a guide groove corresponding to the guide slider on one side.

[0014] Preferably, a connecting shaft is fixed to one side wall of the second clamping block, and a rotating hole that mates with the connecting shaft is provided at one end of the connecting arm, and the connecting shaft can slide axially along the rotating hole.

[0015] Preferably, the telescopic arm includes a first telescopic part and a second telescopic part, the first telescopic part is slidably fitted onto one end of the second telescopic part, and a spring is provided between the first telescopic part and the second telescopic part, and the other end of the first telescopic part is rotatably engaged with a first clamping plate.

[0016] Preferably, one side wall of the upright plate has a first arc surface, and a stop block for limiting the position is provided at the top of the side wall of the first arc surface. The first clamping plate is "L" shaped, and one end of the first clamping plate has a second arc surface symmetrical to the first arc surface.

[0017] Preferably, a pressure plate is fitted on the adjusting bolt and arranged parallel to the limiting clamping assembly, and a grounding wire is pressed between the pressure plate and the limiting clamping assembly, with the other end of the grounding wire connected to a grounding rod through the limiting structure.

[0018] Preferably, the limiting structure includes a connecting plate and a clamping bolt. The connecting plate has through holes at both ends on its inner side for the grounding wire to pass through. The clamping bolt is connected to both ends of the connecting plate through a threaded part to clamp the grounding wire in the through hole. One side wall of the connecting plate has an elastic plate corresponding to the grounding rod.

[0019] Preferably, the other end of the inner side of the base plate is slidably connected to a limiting baffle that can be inserted into the inner side of the second clamping groove, and the limiting baffle is "L" shaped.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] (1) This invention, by setting up a base plate, upright plate, adjusting bolts, limiting clamping components, fixing blocks and guide blocks, avoids the gap between two grounding grid flat steels when connecting “T” shaped grounding grid flat steels. It requires cutting short plates of appropriate length to achieve welding and fixing of the two flat steels, which is troublesome and time-consuming. This device is easy to operate, and ordinary people can quickly complete the connection between two flat steels without professional welding personnel and equipment. Compared with the weld line contact formed by welding, the surface contact of this practical device has a better conductive contact area, and the elastic compensation clamp can ensure contact stability. This device is easy to operate and can be used to connect two flat steels with different lengths, widths, thicknesses and gaps. It allows the flat steels to be non-perpendicular during connection, which increases the applicable scenarios of the device. It has high connection efficiency and is easy to promote and use.

[0022] (2) The present invention avoids the common practice of welding and fixing the flat steel of the grounding grid to the grounding rod, which causes the grounding rod to be limited to the soil directly below the flat steel. When there are obstacles in the soil directly below, it is inconvenient to adjust the position of the grounding rod. The device can easily and quickly make the grounding rod and the flat steel of the grounding grid conductively connected through standard parts. Moreover, the grounding wire between the two is flexible, which can ensure that the installation position of the grounding rod can be adjusted at will, which is conducive to the installation of the grounding rod after avoiding obstacles, increasing the placement position of the grounding rod. The device has a simple structure and is easy to operate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the exploded structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the mounting bracket structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the first inclined plane structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the connection structure of the connecting arm and the second clamping block of the present invention;

[0028] Figure 6 This is a schematic diagram of the exploded structure of the telescopic arm of the present invention;

[0029] Figure 7This is a schematic diagram of the first arc surface structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the limiting structure of the present invention;

[0031] Figure 9 This is a schematic diagram showing the connection between two existing flat steel bars;

[0032] Figure 10 This is a schematic diagram illustrating the connection effect of the two flat steel pieces according to the present invention;

[0033] Figure 11 This is a schematic diagram illustrating the effect of non-perpendicular connection of two flat steel bars according to the present invention;

[0034] Figure 12 This is a schematic diagram illustrating the connection effect between the flat steel of the grounding grid and the grounding rod according to the present invention.

[0035] In the diagram: 1. Base plate; 2. Vertical plate; 21. Stop block; 22. First arc surface; 3. Adjusting bolt; 4. Limiting clamping assembly; 41. Mounting bracket; 411. Flat plate; 412. Connecting block; 413. Mounting shaft; 42. Telescopic arm; 421. First telescopic part; 422. Spring; 423. Second telescopic part; 43. First clamping plate; 44. Connecting arm; 45. Second clamping block; 451. Second inclined surface; 452. Guide slider; 46. Connecting shaft; 5. Fixing block; 6. Guide block; 61. First inclined surface; 8. Pressure plate; 9. Grounding wire; 10. Connecting plate; 11. Clamping bolt; 12. Elastic plate; 13. Grounding rod; 14. Limiting stop plate; 15. First flat steel; 16. Short plate; 19. Second flat steel. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1-12 This invention provides a technical solution: a convenient power distribution network grounding device, comprising:

[0038] Base plate 1, with a vertical plate 2 fixed to one end of the upper surface of base plate 1;

[0039] The fixing block 5 is fixed to the other edge of the upper surface of the base plate 1, and the fixing block 5 is perpendicular to the extension line of the upright plate 2.

[0040] like Figure 1 and Figure 10As shown, this allows the two flat steel bars to correspond to the fixing block 5 and the upright plate 2 respectively, so that the two flat steel bars are distributed at both ends of the base plate 1. Then, the two mutually perpendicular flat steel bars are clamped on the fixing block 5 and the upright plate 2 by the limiting clamping assembly 4 to achieve surface contact. Compared with the weld line contact of welding, it has a better contact area, thereby ensuring good grounding conductivity.

[0041] The guide block 6 is fixed to the other end of the upper surface of the base plate 1 to be parallel with the fixed block 5, and a first clamping groove is formed between the guide block 6 and the fixed block 5.

[0042] Adjusting bolt 3 is located in the middle of the inner side of the base plate 1, and a limiting clamping component 4 is fitted on the adjusting bolt 3. At least one end of the limiting clamping component 4 corresponds to the vertical plate 2 so as to form a second clamping groove between the two.

[0043] It is convenient to place two flat steels in the first clamping groove and the second clamping groove respectively. Later, by adjusting the position of the limiting clamping component 4, the flat steels inside the first clamping groove and the second clamping groove can be quickly clamped to achieve contact conductivity between the two flat steels.

[0044] The limiting clamping component 4 has two states. In the first state, the limiting clamping component 4 moves up along the height direction of the adjusting bolt 3 to expand the internal space of the first clamping groove and the second clamping groove. In the second state, the limiting clamping component 4 moves down along the height direction of the adjusting bolt 3 to reduce the internal space of the first clamping groove and the second clamping groove.

[0045] Existing such as Figure 9 As shown, during the construction and renovation of the grounding grid, the traditional method for connecting the first flat steel 15 and the second flat steel 19, which are in a "T" shape or perpendicular to each other, is to use electric welding for fixing. When there is a gap between the two, it is necessary to cut a flat steel short plate 16 of appropriate length to fill the gap between the two flat steels. Once the welding is completed, the connection angle and relative position of the two flat steels are fixed and cannot be adjusted. This makes it very difficult to adjust the position of the two flat steels in complex terrain or confined space, and lacks installation flexibility.

[0046] This invention completely abandons traditional welding processes, requiring no professional welders or welding equipment; ordinary operators can complete the work, greatly simplifying the construction process and improving the efficiency of grounding grid connection. Simultaneously, since there is no need to additionally cut short plates 16 for the gaps between the flat steel bars, it avoids the problem of increased contact resistance caused by dimensional deviations of the short plates 16 or the line contact of the weld seam in the welding process, ensuring the stability and reliability of the conductive connection. Through the cooperation of two clamping slots, this device can adapt to flat steel bars of different lengths, widths, thicknesses, and gaps. Even when the flat steel bars are not perfectly perpendicular due to on-site installation errors, effective fitting can still be achieved through the adaptive adjustment of the clamping components, significantly expanding the applicable scenarios of the device.

[0047] like Figure 1 and Figure 2 As shown, preferably, the limiting clamping assembly 4 includes a mounting frame 41, a telescopic arm 42 and a connecting arm 44. The mounting frame 41 is slidably mounted on the adjusting bolt 3, and the lower end of the mounting frame 41 is rotatably connected to a first clamping plate 43 corresponding to the upright plate 2 through the telescopic arm 42. The connecting arm 44 is arranged side by side with the telescopic arm 42, and one end of the connecting arm 44 is rotatably connected to a second clamping block 45 corresponding to the fixing block 5.

[0048] When the mounting bracket 41 moves down along the adjusting bolt 3, one end of it drives the first clamping plate 43 to move horizontally towards the upright plate 2 via the telescopic arm 42 to press and fix the second flat steel 19; the other end drives the second clamping block 45 to move towards the fixing block 5 via the connecting arm 44 to press and fix the first flat steel 15. This facilitates the coordinated clamping action of the two clamping slots, improves connection efficiency, and ensures balanced force on the connection node.

[0049] like Figure 3 As shown, preferably, the mounting bracket 41 includes a plate 411 and a connecting block 412. The connecting block 412 is fixed to the lower surface of the plate 411. A mounting shaft 413 is provided on one side wall of the connecting block 412, which rotatably cooperates with the telescopic arm 42 and the connecting arm 44 respectively. Furthermore, a limiting member is provided at the end of the mounting shaft 413 or on the lower surface of the plate 411, so as to better ensure that the telescopic arm 42 and the connecting arm 44 rotate only around the mounting shaft 413. Sliding holes that cooperate with the adjusting bolt 3 are provided through the two ends of the inner side of the plate 411.

[0050] The sliding holes on the plate 411 ensure that the mounting bracket 41 can slide stably along the axial direction of the adjusting bolt 3, avoiding skewing. The mounting shafts 413 on both sides of the connecting block 412 are respectively rotatably engaged with the telescopic arm 42 and the connecting arm 44, which efficiently converts the vertical rotational motion of the adjusting bolt 3 into the horizontal linear motion of the two clamping arms. The transmission efficiency is high, the structure is compact, and the space occupied is small, making it easy to operate in the restricted grounding trench. Sliding holes can also be arranged on one side wall of the connecting block 412, so that the plate 411 can be moved along the height direction of the adjusting bolt 3 through multiple sliding holes.

[0051] like Figure 4 and Figure 5 As shown, preferably, a first inclined surface 61 is provided on one side wall of the guide block 6, a second inclined surface 451 is provided on one side wall of the second clamping block 45 corresponding to the guide block 6, and a guide slider 452 is formed by the outward protrusion of one side wall of the second inclined surface 451, and a guide groove is provided on one side of the first inclined surface 61 corresponding to the guide slider 452.

[0052] When the connecting arm 44 pushes the second clamping block 45 to move horizontally along the upper surface of the base plate 1, the second inclined surface 451 and the first inclined surface 61 slide relative to each other. This sliding is limited by the cooperation of the guide slider 452 and the guide groove, forcing the second clamping block 45 to move towards the fixed block 5 at the same time, thereby reducing the space of the first clamping groove between the second clamping block 45 and the fixed block 5, and clamping and fixing the flat steel inside the first clamping groove. This structure cleverly combines the thrust of the connecting arm 44 and the downward pressure of the adjusting bolt 3 into a strong positive clamping force on the first flat steel 15, ensuring a tight fit between the first flat steel 15 and the fixed block 5, ensuring a good contact surface area, and effectively reducing the contact resistance.

[0053] like Figure 5 As shown, preferably, a connecting shaft 46 is fixed to one side wall of the second clamping block 45, and a rotating hole that mates with the connecting shaft 46 is opened at one end of the connecting arm 44, and the connecting shaft 46 can slide along the axial direction of the rotating hole;

[0054] Since the connecting shaft 46 can slide axially within the rotating hole, when the thicknesses of the two flat steels inside the first clamping groove and the second clamping groove are inconsistent, after the first clamping plate 43 has pressed the vertical plate 2, the connecting arm 44 can continue to drive the second clamping block 45 to slide towards the flat steel. This sliding structure compensates for the positional deviation caused by the thickness difference, ensuring that the second clamping block 45 can be independently and tightly pressed onto the first flat steel 15. This design enables the device to adapt well to the mixed connection of flat steels of different specifications, further enhancing the versatility of the device.

[0055] like Figure 6 As shown, preferably, the telescopic arm 42 includes a first telescopic part 421 and a second telescopic part 423. The first telescopic part 421 is slidably fitted onto one end of the second telescopic part 423, and a spring 422 is provided between the first telescopic part 421 and the second telescopic part 423. The other end of the first telescopic part 421 is rotatably engaged with the first clamping plate 43.

[0056] This elastic buffer structure is particularly crucial when the thickness of the connecting flat steel is uneven or there are gaps. When the second clamping block 45 needs to continue moving due to the presence of the first flat steel 15, but the first clamping plate 43 has been pressed into place and cannot move horizontally further, the telescopic arm 42 can shorten its length by compressing the spring 422, thereby allowing the mounting bracket 41 to continue to move downward and fully transmit the driving force to the connecting arm 44 and the second clamping block 45. This structure not only achieves strong pressing of flat steel of different thicknesses, but also avoids component damage or clamping failure caused by hard jamming or accidental loosening. This device can easily provide stable elastic compensation and improve the reliability of the device's electrical conductivity.

[0057] like Figure 7As shown, preferably, one side wall of the upright plate 2 has a first arc surface 22, and a stop block 21 for limiting is provided at the top of one side wall of the first arc surface 22. The first clamping plate 43 is "L" shaped, and one end of the first clamping plate 43 has a second arc surface symmetrical to the first arc surface 22.

[0058] The stop block 21 better restricts the flat steel from slipping accidentally along the height of the vertical plate 2, improving the clamping and fixing effect of the flat steel after the first clamping plate 43 and the vertical plate 2 are engaged. The symmetrically arranged first and second arc surfaces 22 allow for slight offset of the flat steel between the first clamping plate 43 and the vertical plate 2, thus accommodating clamping situations where the two flat steels are not perpendicular. Figure 11 As shown, there can be an included angle α between the two flat steel pieces, which helps to increase the applicability of the device.

[0059] like Figure 8 As shown, preferably, a pressure plate 8 is fitted on the adjusting bolt 3, which is parallel to the limiting clamping assembly 4, and a grounding wire 9 is pressed between the pressure plate 8 and the limiting clamping assembly 4. The other end of the grounding wire 9 is connected to a grounding rod 13 through the limiting structure.

[0060] This device expands its functionality beyond simply connecting flat steel bars. Its structure allows for easy connection of the "T"-shaped flat steel connection node to the grounding wire 9, forming a reliable electrical connection with the grounding rod 13 driven into the ground. This directly connects the casing or frame of the power distribution network equipment to the earth. The grounding grid's current dissipation capacity is enhanced by the deeply inserted grounding rod 13, ensuring more efficient current delivery into the soil. This design perfects the entire grounding solution, allowing a single device to simultaneously complete both the flat steel connection and grounding lead-out, reducing construction steps and material costs. Furthermore, after deployment, the elastic force of the telescopic arm 42 reacts on the flat plate 411, ensuring a tight fit between the flat plate 411 and the pressure plate 8, providing durable and effective elastic clamping compensation and reducing grounding failures caused by loose bolts.

[0061] Furthermore, the grounding rod 13 is electrically connected to the two flat steel pieces clamped in this device via the grounding wire 9. The position of the grounding rod 13 inserted into the soil can be adjusted arbitrarily. That is, when there are obstacles in the soil below the flat steel, the position of the grounding rod 13 can bypass the obstacles, and the position can be adjusted arbitrarily before being deeply inserted into the soil. It is not limited to being inserted into the soil below the flat steel, which improves the convenience of the layout.

[0062] like Figure 8 As shown, preferably, the limiting structure includes a connecting plate 10 and a clamping bolt 11. The connecting plate 10 has through holes at both ends of its inner side for the grounding wire 9 to pass through. The clamping bolt 11 is connected to both ends of the connecting plate 10 through a threaded part to clamp the grounding wire 9 in the through hole. The connecting plate 10 has an elastic plate 12 on one side wall that corresponds to the grounding rod 13.

[0063] After the grounding wire 9 passes through the through hole of the connecting plate 10, it is clamped by the clamping bolt 11. The operation is simple and the connection is firm. In particular, the elastic plate 12 on one side of the connecting plate 10 can form a tight clamping fit with the outer wall of the grounding rod 13 by utilizing its elastic deformation. This not only ensures a good conductive contact area, but also facilitates quick clamping or disassembly and replacement during use, improving the flexibility and work efficiency of the construction site.

[0064] like Figure 1 and Figure 2 As shown, preferably, a limiting baffle 14 that can be inserted into the inner side of the second clamping groove is slidably connected to the other end of the inner side of the base plate 1, and the limiting baffle 14 is "L" shaped.

[0065] When the flat steel is clamped between the fixed block 5 and the second clamping block 45, the limiting baffle 14, the fixed block 5 and the flat steel are in close contact. Thus, the "L"-shaped limiting baffle 14 can better prevent the flat steel from moving upward and prevent the flat steel from falling out between the fixed block 5 and the second clamping block 45, thus ensuring the clamping and fixing effect of the flat steel.

[0066] The working principle and usage process of this invention are as follows: In use, the first flat steel 15 is placed between the fixed block 5 and the guide block 6, and one side of the second flat steel 19 is tightly pressed against the upright plate 2. Then, the mounting frame 41 is screwed downwards using the adjusting nut on the adjusting bolt 3. The mounting frame 41 drives the first clamping plate 43 towards the upright plate 2 via the telescopic arm 42, pressing the second flat steel 19 onto the upright plate 2 to achieve conductive contact. Simultaneously, the mounting frame 41 pushes the second clamping block 45 to move via the connecting arm 44, thereby driving the second clamping block 45 towards the fixed block 5 through the cooperation of the second inclined surface 451 and the first inclined surface 61, so that the first flat steel 15 is pressed onto the fixed block 5 by the second clamping block 45 to achieve conductive contact, forming a... Figure 10 As shown, further, when the thicknesses of the first flat steel 15 and the second flat steel 19 are different, that is, after the second flat steel 19 is pressed onto the upright plate 2, but before the first flat steel 15 is pressed onto the fixed block 5, the mounting bracket 41 can continue to be rotated downwards, thereby causing the telescopic arm 42 to elastically shorten, and the second clamping block 45 can continue to move closer to the fixed block 5 until the first flat steel 15 is pressed onto the fixed block 5 to achieve contact, so that the first flat steel 15 and the second flat steel 19 can achieve a stable electrical connection through this device.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A convenient power distribution network grounding device, characterized in that, include: A base plate (1) has a vertical plate (2) fixed to one end of its upper surface. A fixing block (5) is fixed to the other edge of the upper surface of the base plate (1), and the fixing block (5) is perpendicular to the extension line of the upright plate (2); A guide block (6) is fixed to the other end of the upper surface of the base plate (1) to be parallel with the fixing block (5), and a first clamping groove is formed between the guide block (6) and the fixing block (5); An adjusting bolt (3) is located in the middle of the inner side of the base plate (1), and a limiting clamping assembly (4) is fitted on the adjusting bolt (3). At least one end of the limiting clamping assembly (4) corresponds to the upright plate (2) to form a second clamping groove between the two. The limiting clamping assembly (4) has two states. In the first state, the limiting clamping assembly (4) moves up along the height direction of the adjusting bolt (3) to expand the internal space of the first clamping groove and the second clamping groove. In the second state, the limiting clamping assembly (4) moves down along the height direction of the adjusting bolt (3) to reduce the internal space of the first clamping groove and the second clamping groove.

2. The convenient power distribution network grounding device according to claim 1, characterized in that: The limiting clamping assembly (4) includes a mounting frame (41), a telescopic arm (42), and a connecting arm (44). The mounting frame (41) is slidably mounted on the adjusting bolt (3), and the lower end of the mounting frame (41) is rotatably connected to a first clamping plate (43) corresponding to the upright plate (2) through the telescopic arm (42). The connecting arm (44) is arranged side by side with the telescopic arm (42), and one end of the connecting arm (44) is rotatably connected to a second clamping block (45) corresponding to the fixing block (5).

3. A convenient power distribution network grounding device according to claim 2, characterized in that: The mounting bracket (41) includes a flat plate (411) and a connecting block (412). The connecting block (412) is fixed to the lower surface of the flat plate (411). One side wall of the connecting block (412) is provided with a mounting shaft (413) that rotatably cooperates with the telescopic arm (42) and the connecting arm (44). The two ends of the inner side of the flat plate (411) are provided with sliding holes that cooperate with the adjusting bolt (3).

4. A convenient power distribution network grounding device according to claim 2, characterized in that: The guide block (6) has a first inclined surface (61) on one side wall, and the second clamping block (45) has a second inclined surface (451) on one side wall corresponding to the guide block (6). The second inclined surface (451) has a guide slider (452) protruding outward on one side wall. The first inclined surface (61) has a guide groove corresponding to the guide slider (452).

5. A convenient power distribution network grounding device according to claim 2, characterized in that: The second clamping block (45) has a connecting shaft (46) fixed on one side wall. One end of the connecting arm (44) has a rotating hole that cooperates with the connecting shaft (46), and the connecting shaft (46) can slide along the axial direction of the rotating hole.

6. A convenient power distribution network grounding device according to claim 2, characterized in that: The telescopic arm (42) includes a first telescopic part (421) and a second telescopic part (423). The first telescopic part (421) is slidably fitted onto one end of the second telescopic part (423), and a spring (422) is provided between the first telescopic part (421) and the second telescopic part (423). The other end of the first telescopic part (421) is rotatably engaged with the first clamping plate (43).

7. A convenient power distribution network grounding device according to claim 2, characterized in that: The upright plate (2) has a first arc surface (22) on one side wall, and a stop block (21) for limiting the position is provided at the top of the first arc surface (22) side wall. The first clamping plate (43) is "L" shaped, and one end of the first clamping plate (43) has a second arc surface symmetrical to the first arc surface (22).

8. A convenient power distribution network grounding device according to claim 1, characterized in that: The adjusting bolt (3) is fitted with a pressure plate (8) that is parallel to the limiting clamping assembly (4), and a grounding wire (9) is pressed between the pressure plate (8) and the limiting clamping assembly (4). The other end of the grounding wire (9) is connected to a grounding rod (13) through the limiting structure.

9. A convenient power distribution network grounding device according to claim 8, characterized in that: The limiting structure includes a connecting plate (10) and a clamping bolt (11). The connecting plate (10) has through holes at both ends on its inner side for the grounding wire (9) to pass through. The clamping bolt (11) is connected to both ends of the connecting plate (10) through a threaded part to clamp the grounding wire (9) in the through hole. One side wall of the connecting plate (10) has an elastic plate (12) corresponding to the grounding rod (13).

10. A convenient power distribution network grounding device according to claim 1, characterized in that: The bottom plate (1) is slidably connected to the other end of the inner side of the bottom plate (1), and the limiting baffle (14) is "L" shaped.

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