Grounding construction auxiliary device

Abstract

The grounding construction auxiliary device comprises a telescopic rod capable of stretching out and drawing back towards the two ends, a first positioning cylinder is arranged in the middle of the telescopic rod, second positioning cylinders are arranged at the two ends of the telescopic rod respectively, and positioning blocks are arranged in the first positioning cylinder and the second positioning cylinders; the positioning block is used for limiting the posture of the angle steel located in the first positioning cylinder and the second positioning cylinder, so that the angle steel is driven into the ground in a specified posture. According to the device, the telescopic rod is used for replacing scribing positioning in traditional construction, the speed is high, adjustment is more flexible, the posture of the angle steel in the positioning cylinder is limited through the positioning block, and the angle steel is driven into the ground in the specified posture. The whole construction process is simple, the positioning precision is high, errors are small, when the flat steel and the angle steel are welded in the later period, the flat steel does not need to be cut off, the workload is saved, the working efficiency is improved, and it can be guaranteed that the overall resistance of the grounding structure is close to a design value.

Description

Technical Field

[0001] This invention relates to the field of grounding electrode construction technology, and in particular to a grounding construction auxiliary device. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] To meet the requirements of high anti-interference, high reliability, and low resistance for protective grounding of laboratory equipment, the inventors adopted a novel grounding structure. This grounding structure includes a rectangular horizontal grounding electrode composed of four galvanized flat steel bars (each bar 5-10 meters in length). Vertical grounding electrodes (galvanized angle steel bars with a vertical height of 2-3 meters) are welded to the four corners and the center of each side of the rectangular horizontal grounding electrode. The grounding structure is buried 0.7-0.9 meters below the ground surface and connected to the indoor grounding equipment on one side by a BV70 insulated wire.

[0004] Because the grounding structure is relatively large, construction typically involves first excavating a trench, then marking the location within the trench, driving one end of a galvanized angle steel into the ground, and finally welding a galvanized flat steel to the galvanized angle steel to form the grounding structure. However, due to errors in marking the location and construction errors during the driving of the galvanized angle steel, the three galvanized angle steels on each side of the rectangular horizontal grounding electrode are not aligned. This necessitates cutting the galvanized flat steel into two sections and welding them between adjacent galvanized angle steels. This method is time-consuming and labor-intensive. Furthermore, cutting a single galvanized flat steel into two sections before welding increases resistance, hindering resistance reduction. Therefore, this application proposes a grounding construction auxiliary device to address these issues. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned shortcomings by providing a grounding construction auxiliary device.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A grounding construction auxiliary tool includes a telescopic rod that can extend and retract to both ends. A first positioning cylinder is provided in the middle of the telescopic rod, and a second positioning cylinder is provided at each end of the telescopic rod. The upper and lower ends of the first and second positioning cylinders are connected. The first and second positioning cylinders are used to position the installation position of the L-shaped angle steel. The first positioning cylinder and the second positioning cylinder are not on the same straight line. The side of the flat steel located between the two second positioning cylinders is in contact with one side of the L-shaped angle steel located inside the first positioning cylinder. The first positioning cylinder and the second positioning cylinder are respectively provided with positioning blocks. The positioning blocks are used to limit the posture of the angle steel located in the first positioning cylinder and the second positioning cylinder, so that the angle steel is driven into the ground in a specified posture.

[0007] Furthermore, the telescopic rod is engraved with graduations.

[0008] Furthermore, the first positioning cylinder and the second positioning cylinder have the same structure, both including a cylinder body. An annular groove is coaxially formed on the cylinder body, and a sliding groove runs through the inside and outside of one side of the cylinder body. The sliding groove also runs through the cylinder wall between the cylinder body and the annular groove. A collar is rotatably fitted in the annular groove, and a spiral limiting plate in a planar spiral shape is provided on the bottom surface of the collar. The positioning block includes a right-angle block and a sliding block fixedly connected. The right-angle block is located inside the cylinder, and the sliding block is elongated and slides through the groove. A through groove adapted to the spiral limiting plate is provided at the position of the sliding block corresponding to the spiral limiting plate. The through groove passes through the top and both sides of the corresponding sliding block. Rotating the collar can drive the spiral limiting plate to rotate, so that one end of the spiral limiting plate passes through the through groove at the top of the sliding block, and the spiral limiting plate continues to rotate. Through the cooperation of the spiral limiting plate and the through groove, the sliding block is driven to move towards or away from the interior of the cylinder.

[0009] Furthermore, the two ends of the telescopic rod are connected to support plates via connecting rods, and the connecting rods are movably inserted through the two ends of the telescopic rod. When welding flat steel, the first positioning cylinder and the second positioning cylinder are moved to the top of the corresponding angle steel. The height position of the first positioning cylinder and the second positioning cylinder relative to the angle steel is limited by the positioning block. Then the support plate hangs down to support the flat steel to be welded.

[0010] Furthermore, the right-angled block is stepped, including a first right-angled step on top and a second right-angled step on the bottom, wherein the shape and size of the first right-angled step are larger than the shape and size of the second right-angled step; When the positioning block defines the height position of the first positioning cylinder and the second positioning cylinder relative to the angle steel, one end of the first right-angle step moves to the top of the angle steel to contact the top surface of the angle steel, and the second right-angle step contacts the side wall of the angle steel, thus defining the posture of the first positioning cylinder and the second positioning cylinder relative to the angle steel.

[0011] Furthermore, a receiving groove for accommodating the first right-angle step is provided on the inner wall of the cylinder at a position opposite to the first right-angle step.

[0012] Furthermore, the connecting rod consists of two uprights, and a limiting crossbar is provided between the two uprights near the support plate, with a gap between the limiting crossbar and the support plate; A blocking component is provided at the position of the corresponding limiting crossbar of the telescopic rod. The blocking component includes a triggering part and a limiting part. The limiting part is used to limit the limiting crossbar by passing through the bottom of the limiting crossbar. One end of the triggering part slides into the cylinder body to contact the positioning block. After the positioning block limits the position of the first positioning cylinder and the second positioning cylinder relative to the angle steel, the triggering part is triggered, so that the limiting part moves away from the bottom of the limiting crossbar.

[0013] Furthermore, the limiting part includes a sliding sleeve fixed to one end of the telescopic rod and a limiting block slidably disposed in the sliding sleeve. The end of the limiting block near the limiting crossbar is used to move to the bottom of the limiting crossbar, and the end of the limiting block away from the limiting crossbar has an inclined guide groove. The triggering part includes a guide post with one end inserted into the guide groove and slidingly engaged with the guide groove. The end of the guide post away from the support plate extends out of the guide groove and is connected to a guide rod. A guide sleeve is provided on the outside of the guide rod to guide the linear displacement of the guide rod. The guide sleeve is fixed on the telescopic rod. One end of the guide rod extends into the cylinder to contact the positioning block. A spring is provided between the guide rod and the guide sleeve. The spring is used to push one end of the guide rod to move into the cylinder.

[0014] Furthermore, the limiting block is a wedge-shaped block, and the inclined surface on the wedge-shaped block is located on the lower side of the wedge-shaped block.

[0015] Furthermore, at least one of the uprights is a screw rod, and a nut is screwed to the top of the screw rod. By adjusting the position of the nut relative to the screw rod, the downward drop distance of the support plate can be adjusted.

[0016] The beneficial effects of this invention are reflected in: This invention uses a telescopic rod to replace the traditional marking and positioning method in construction, which is faster and more flexible. Positioning blocks constrain the posture of the angle steel inside the positioning cylinder, ensuring it is driven into the ground in a specified orientation. The entire construction process is relatively simple, with high positioning accuracy and minimal error. Later, when welding the flat steel to the angle steel, the flat steel does not need to be cut, saving workload, improving work efficiency, and ensuring that the overall resistance of the grounding structure is close to the design value. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a grounding structure composed of angle steel and flat steel. Figure 2 This is a structural schematic diagram of the grounding construction auxiliary equipment described in this application; Figure 3 This is a schematic diagram of the structure of the second positioning cylinder in this application; Figure 4 This is an exploded view of the structure of the second positioning cylinder in this application; Figure 5This is a schematic diagram of the internal structure of the second positioning cylinder in this application; Figure 6 This is a schematic diagram of the structure of the blocking component described in this application.

[0018] In the picture: 1. Telescopic pole; 2. First positioning cylinder; 3. Second positioning cylinder; 31. Cylinder body; 311. Receiving groove; 32. Annular groove; 33. Sliding groove; 34. Collar; 35. Spiral limiting plate; 4. Angle steel; 5. Flat steel; 6. Positioning block; 61. Right-angle block; 611. First right-angle step; 612. Second right-angle step; 62. Sliding block; 621. Through slot; 7. Connecting rod; 71. Upright pole; 72. Limiting crossbar; 8. Support plate; 9. Blocking component; 91. Triggering part; 911. Guide post; 912. Guide rod; 913. Guide sleeve; 914. Spring; 92. Limiting part; 921. Sliding sleeve; 922. Limiting block; 923. Guide groove. Detailed Implementation

[0019] 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 a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. 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.

[0020] Please see Figures 1-6 The present invention discloses a grounding construction auxiliary tool, including a telescopic rod 1 that can extend and retract to both ends. A first positioning cylinder 2 is provided in the middle of the telescopic rod 1, and a second positioning cylinder 3 is provided at both ends of the telescopic rod 1. The upper and lower ends of the first positioning cylinder 2 and the second positioning cylinder 3 are connected. The first positioning cylinder 2 and the second positioning cylinder 3 are used to insert L-shaped angle steel 4 to position the installation position of L-shaped angle steel 4. Among them, the first positioning cylinder 2 and the second positioning cylinder 3 are not on the same straight line, and the side of the flat steel 5 located between the two second positioning cylinders 3 is in contact with one side of the angle steel 4L-shaped located inside the first positioning cylinder 2. The positioning cylinder is equipped with a positioning block 6, which is used to limit the posture of the angle steel 4 located in the first positioning cylinder 2 and the second positioning cylinder 3, so that the angle steel 4 is driven into the ground in a specified posture.

[0021] In practical implementation, the two ends of the telescopic rod 1 can extend in multiple stages. The extension of each stage can be achieved using the elastic locking mechanism (spring 914 plus a top ball structure) commonly used in existing telescopic rod technology. Alternatively, a pin or an interference fit at the tail can be used to lock the relative position between adjacent extensions. In use, four telescopic rods 1 can be arranged into a rectangle. The two first positioning cylinders 2 at the four corners of the rectangle can be stacked vertically. This rectangular shape replaces the traditional marking and positioning method, offering faster speed and greater flexibility in adjustment. After positioning, L-shaped angle steel 4 is inserted from top to bottom into the corresponding first positioning cylinder 2 and second positioning cylinder 3. Then, positioning blocks 6 are used to constrain the posture of the angle steel 4 within the positioning cylinders, ensuring it is driven into the ground in the specified orientation. The entire construction process is relatively simple, with high positioning accuracy and minimal error. Later, when welding the flat steel 5 to the angle steel 4, it is not necessary to cut the flat steel 5, saving workload, improving efficiency, and ensuring the overall resistance of the grounding structure is close to the design value.

[0022] In one embodiment, the telescopic rod 1 is engraved with graduations (not shown in the figure).

[0023] In practice, the two ends of the telescopic rod 1 can extend in multiple stages, and each stage of the rod is engraved with graduations (refer to the structure of the tower gauge). This can further eliminate the work of measuring the length and can be flexibly adjusted when facing grounding structures of different lengths.

[0024] In one embodiment, the first positioning cylinder 2 and the second positioning cylinder 3 have the same structure, both including a cylinder body 31. An annular groove 32 is coaxially provided on the cylinder body 31, and a sliding groove 33 is passed through the inner and outer sides of one side of the cylinder body 31. The sliding groove 33 also passes through the cylinder wall between the cylinder body 31 and the annular groove 32. The annular groove 32 is rotatably fitted with a collar 34, and the bottom surface of the collar 34 is provided with a spiral limiting plate 35 in a planar spiral shape. The positioning block 6 includes a right-angle block 61 and a sliding block 62 fixedly connected. The right-angle block 61 is located inside the cylinder 31. The sliding block 62 is elongated and slides through the groove 33. The sliding block 62 is provided with a through groove 621 that matches the spiral limiting plate 35 at the corresponding position of the spiral limiting plate 35. The through groove 621 passes through the top and both sides of the corresponding sliding block 62. Rotating the collar 34 can drive the spiral limiting plate 35 to rotate, so that one end of the spiral limiting plate 35 passes through the through groove 621 at the top of the sliding block 62. Continuing to rotate the spiral limiting plate 35, through the cooperation of the spiral limiting plate 35 and the through groove 621, drives the sliding block 62 to move closer to or further away from the interior of the cylinder 31, limiting or releasing the angle steel 4 located inside the cylinder 31.

[0025] In practice, when the angle steel 4 is driven into the ground, the rotating collar 34 adjusts the position of the right-angle block 61 inside the cylinder 31 (without clamping the angle steel 4). The posture of the angle steel 4 is limited by the cooperation between the right-angle block 61 and the inner wall of the cylinder 31. The adjustable setting of the positioning block 6 can accommodate angle steel 4 of different specifications, with a high degree of adaptability.

[0026] In one embodiment, the two ends of the telescopic rod 1 are connected to the support plate 8 by the connecting rod 7, and the connecting rod 7 is movably inserted through the two ends of the telescopic rod 1. When it is time to weld the flat steel 5, the first positioning cylinder 2 and the second positioning cylinder 3 are moved to the top of the corresponding angle steel 4. The positioning block 6 limits the height position of the first positioning cylinder 2 and the second positioning cylinder 3 relative to the angle steel 4. Then the support plate 8 hangs down to support the flat steel 5 to be welded.

[0027] In practice, the right-angle block 61 can be clamped on the top of the angle steel 4 by rotating the collar 34, thereby fixing the height position of the first positioning cylinder 2 and the second positioning cylinder 3 relative to the angle steel 4; or, the right-angle block 61 can be moved to block the top of the positioning cylinder (i.e., preventing the angle steel 4 from passing through the cylinder 31), and then the first positioning cylinder 2 and the second positioning cylinder 3 can be placed on top of the angle steel 4. Through this overlapping method, the height position of the first positioning cylinder 2 and the second positioning cylinder 3 relative to the angle steel 4 is fixed. After the height position of the first positioning cylinder 2 and the second positioning cylinder 3 is fixed, the flat steel 5 to be welded is supported by the support plate 8, so that the distance between the flat steel 5 and the top of each angle steel 4 is completely equal. In this way, by controlling the consistency of the driving depth of each angle steel 4 into the ground, the flat steel 5 can be kept in a horizontal state, without the need to level the bottom of the trench, saving time and effort.

[0028] Preferably, the middle part of the telescopic rod 1 can also be connected to the support plate 8 via the connecting rod 7.

[0029] In one embodiment, the right-angled block 61 is stepped, including a first right-angled step 611 on top and a second right-angled step 612 on the bottom, wherein the shape and size of the first right-angled step 611 are larger than the shape and size of the second right-angled step 612; When the positioning block 6 defines the height position of the first positioning cylinder 2 and the second positioning cylinder 3 relative to the angle steel 4, one end of the first right-angle step 611 moves to the top of the angle steel 4 to contact the top surface of the angle steel 4, and the second right-angle step 612 contacts the side wall of the angle steel 4, defining the posture of the first positioning cylinder 2 and the second positioning cylinder 3 relative to the angle steel 4. This design, while defining the position of the first positioning cylinder 2 and the second positioning cylinder 3 relative to the angle steel 4, also defines their posture, allowing the support plate 8 to be horizontal, facilitating the horizontal welding of the flat steel 5.

[0030] In one embodiment, a receiving groove 311 for accommodating the first right-angle step 611 is provided on the inner wall of the cylinder 31 at a position opposite to the first right-angle step 611. This design allows the second right-angle step 612 to abut against angle steel 4 of different specifications, providing strong adaptability.

[0031] In one embodiment, the connecting rod 7 is composed of two uprights 71, and a limiting crossbar 72 is provided between the two uprights 71 near the support plate 8, and there is a gap between the limiting crossbar 72 and the support plate 8. A blocking component 9 is provided at the position of the corresponding limiting crossbar 72 of the telescopic rod 1. The blocking component 9 includes a trigger part 91 and a limiting part 92. The limiting part 92 is used to limit the limiting crossbar 72 by passing through the bottom of the limiting crossbar 72. One end of the trigger part 91 slides into the cylinder 31 and is used to contact the positioning block 6. After the positioning block 6 limits the position of the first positioning cylinder 2 and the second positioning cylinder 3 relative to the angle steel 4, the trigger part 91 is triggered, so that the limiting part 92 moves away from the bottom of the limiting crossbar 72.

[0032] In practice, the connecting rod 7 composed of two uprights 71 can better limit the posture of the support plate 8. When working, the trigger part 91 is long and narrow, with one end extending into the receiving groove 311 and into the cylinder 31. When the positioning block 6 blocks the top of the positioning cylinder, the first right-angle step 611 enters the receiving groove 311, triggering the trigger part 91, causing the limiting part 92 to move away from the bottom of the limiting crossbar 72, so that the collar 34 can also be used as a limit switch.

[0033] In one embodiment, the limiting part 92 includes a sliding sleeve 921 fixed to one end of the telescopic rod 1 and a limiting block 922 slidably disposed in the sliding sleeve 921. The end of the limiting block 922 near the limiting crossbar 72 is used to move to the bottom of the limiting crossbar 72, and the end of the limiting block 922 away from the limiting crossbar 72 is provided with a guide groove 923 at an incline. The triggering part 91 includes a guide post 911 with one end inserted into the guide groove 923 and slidingly engaged with the guide groove 923. The end of the guide post 911 away from the support plate 8 extends out of the guide groove 923 and is connected to a guide rod 912. A guide sleeve 913 is provided on the outside of the guide rod 912 to guide the linear displacement of the guide rod 912. The guide sleeve 913 is fixed on the telescopic rod 1. One end of the guide rod 912 extends into the cylinder 31 to contact the positioning block 6. A spring 914 is provided between the guide rod 912 and the guide sleeve 913. The spring 914 is used to push one end of the guide rod 912 to move into the cylinder 31.

[0034] In specific implementation, a clearance hole is provided on the inner wall of the cylinder 31 for the guide rod 912 to slide. The guide rod 912 enters the cylinder 31 through the clearance hole. Under the guidance of the guide sleeve 913, the guide rod 912 can only move linearly, which in turn drives the guide post 911 to move linearly. Since the guide groove 923 is inclined, the guide post 911 will drive the limiting block 922 to slide in the sliding sleeve 921 during the linear movement, thereby causing the limiting block 922 to move away from the limiting crossbar 72.

[0035] In one embodiment, the limiting block 922 is a wedge-shaped block, with its inclined surface located on its lower side. Thus, when the support plate 8 is retracted to reset, the limiting crossbar 72 can press against the inclined surface of the wedge-shaped block, causing it to move backward and compressing the spring 914. After the limiting crossbar 72 moves above the wedge-shaped block, the wedge-shaped block automatically resets under the action of the spring 914, preventing the limiting crossbar 72 from moving downward.

[0036] In one embodiment, at least one upright 71 is a screw rod, and a nut (not shown in the figure) is screwed to the top of the screw rod. By adjusting the position of the nut relative to the screw rod, the downward drop distance of the support plate 8 can be adjusted.

[0037] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0038] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0039] Additionally, "multiple" refers to two or more.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grounding construction auxiliary tool, characterized in that, It includes a telescopic rod (1) that can extend and retract to both ends. A first positioning cylinder (2) is provided in the middle of the telescopic rod (1), and a second positioning cylinder (3) is provided at both ends of the telescopic rod (1). The upper and lower ends of the first positioning cylinder (2) and the second positioning cylinder (3) are connected. The first positioning cylinder (2) and the second positioning cylinder (3) are used to position the installation position of the L-shaped angle steel (4). Among them, the first positioning cylinder (2) and the second positioning cylinder (3) are not on the same straight line, and the side of the flat steel (5) located between the two second positioning cylinders (3) is in contact with one side of the L-shaped angle steel (4) located inside the first positioning cylinder (2); Positioning blocks (6) are respectively provided in the first positioning cylinder (2) and the second positioning cylinder (3). The positioning blocks (6) are used to limit the posture of the angle steel (4) located in the first positioning cylinder (2) and the second positioning cylinder (3), so that the angle steel (4) is driven into the ground in a specified posture.

2. The grounding construction auxiliary tool according to claim 1, characterized in that, The telescopic rod (1) is engraved with scales.

3. The grounding construction auxiliary equipment according to claim 1 or 2, characterized in that, The first positioning cylinder (2) and the second positioning cylinder (3) have the same structure, both including a cylinder body (31). An annular groove (32) is coaxially provided on the cylinder body (31). A sliding groove (33) is passed through the inside and outside of one side of the cylinder body (31). The sliding groove (33) also passes through the cylinder wall between the cylinder body (31) and the annular groove (32). A collar (34) is rotatably fitted in the annular groove (32), and a spiral limiting plate (35) in the shape of a planar spiral is provided on the bottom surface of the collar (34); the positioning block (6) includes a right-angle block (61) and a sliding block (62) fixedly connected, the right-angle block (61) is located inside the cylinder (31), and the sliding block (62) is long and slides through the groove (33). The sliding block (62) is provided with a corresponding spiral limiting plate (35) at the position of the spiral limiting plate (35). The groove (621) is adapted to the sliding block (62). The groove (621) passes through the top and both sides of the corresponding sliding block (62). Rotating the collar (34) can drive the spiral limiting plate (35) to rotate, so that one end of the spiral limiting plate (35) passes through the groove (621) at the top of the sliding block (62). The spiral limiting plate (35) continues to rotate. Through the cooperation between the spiral limiting plate (35) and the groove (621), the sliding block (62) is driven to move towards or away from the interior of the cylinder (31).

4. The grounding construction auxiliary equipment according to claim 3, characterized in that, The two ends of the telescopic rod (1) are connected to the support plate (8) by the connecting rod (7), and the connecting rod (7) is movably inserted through the two ends of the telescopic rod (1); When welding flat steel (5), the first positioning cylinder (2) and the second positioning cylinder (3) are moved to the top of the corresponding angle steel (4), and the height position of the first positioning cylinder (2) and the second positioning cylinder (3) relative to the angle steel (4) is limited by the positioning block (6). Then the support plate (8) hangs down to support the flat steel (5) to be welded.

5. The grounding construction auxiliary equipment according to claim 4, characterized in that, The right-angle block (61) is stepped, including a first right-angle step (611) on top and a second right-angle step (612) on the bottom. The shape and size of the first right-angle step (611) are larger than the shape and size of the second right-angle step (612). When the positioning block (6) defines the height position of the first positioning cylinder (2) and the second positioning cylinder (3) relative to the angle steel (4), one end of the first right-angle step (611) moves to the top of the angle steel (4) to contact the top surface of the angle steel (4), and the second right-angle step (612) contacts the side wall of the angle steel (4), defining the posture of the first positioning cylinder (2) and the second positioning cylinder (3) relative to the angle steel (4).

6. The grounding construction auxiliary equipment according to claim 5, characterized in that, The inner wall of the cylinder (31) is provided with a receiving groove (311) for accommodating the first right-angle step (611) at the position opposite to the first right-angle step (611).

7. The grounding construction auxiliary equipment according to claim 4, characterized in that, The connecting rod (7) consists of two uprights (71), and a limiting crossbar (72) is provided between the two uprights (71) near the support plate (8), and there is a gap between the limiting crossbar (72) and the support plate (8). A blocking component (9) is provided at the position of the corresponding limiting crossbar (72) of the telescopic rod (1). The blocking component (9) includes a trigger part (91) and a limiting part (92). The limiting part (92) is used to pass through the bottom of the limiting crossbar (72) to limit the limiting crossbar (72). One end of the trigger part (91) slides into the cylinder (31) to contact the positioning block (6). After the positioning block (6) limits the position of the first positioning cylinder (2) and the second positioning cylinder (3) relative to the angle steel (4), the trigger part (91) is triggered, so that the limiting part (92) moves away from the bottom of the limiting crossbar (72).

8. The grounding construction auxiliary tool according to claim 7, characterized in that, The limiting part (92) includes a sliding sleeve (921) fixed to one end of the telescopic rod (1) and a limiting block (922) slidably disposed in the sliding sleeve (921). The end of the limiting block (922) near the limiting crossbar (72) is used to move to the bottom of the limiting crossbar (72). The end of the limiting block (922) away from the limiting crossbar (72) is provided with a guide groove (923) at an incline. The triggering part (91) includes a guide post (911) with one end inserted into the guide groove (923) and slidingly engaged with the guide groove (923). The end of the guide post (911) away from the support plate (8) extends out of the guide groove (923) and is connected to a guide rod (912). A guide sleeve (913) is provided on the outside of the guide rod (912) for guiding the linear displacement of the guide rod (912). The guide sleeve (913) is fixed on the telescopic rod (1). One end of the guide rod (912) extends into the cylinder (31) for contacting the positioning block (6). A spring (914) is provided between the guide rod (912) and the guide sleeve (913). The spring (914) is used to push one end of the guide rod (912) to move into the cylinder (31).

9. The grounding construction auxiliary equipment according to claim 8, characterized in that, The limiting block (922) is a wedge-shaped block, and the inclined surface on the wedge-shaped block is located on the lower side of the wedge-shaped block.

10. The grounding construction auxiliary tool according to claim 7, characterized in that, At least one upright (71) is a screw rod, and a nut is screwed to the top of the screw rod. By adjusting the position of the nut relative to the screw rod, the downward drop distance of the support plate (8) can be adjusted.

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