Grounding device for electric power construction
The combination of brackets, limiting rods, and soil-insertion pipes solves the problem of inconvenient installation of grounding devices in power construction, achieves a stable connection between the grounding conductor and the soil, and meets the safety requirements of power construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-14
AI Technical Summary
Existing power construction grounding devices are inconvenient to install, especially horizontally laid grounding electrodes which have poor contact with the soil, making installation difficult.
The system employs a combination structure consisting of a bracket, a limiting rod, an insertion pipe, a threaded sleeve, and a rotating disk. The insertion pipe is gradually inserted into the ground by rotating the threaded sleeve under the constraint of the limiting rod. Combined with the fixation of the counterweight box and the grounding nail, the grounding wire can be conveniently connected.
It enables convenient installation and secure connection of the grounding device, ensuring good contact between the grounding conductor and the soil, and meeting the safety requirements of power construction.
Smart Images
Figure CN224502366U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power construction technology, specifically to a power construction grounding device. Background Technology
[0002] According to the standard GB16895.21-2011 "Electrical Installations in Buildings - Part 4-41: Safety Protection - Protection Against Electric Shock", the minimum recommended burial depth for grounding electrodes is 0.7 meters. For horizontally laid grounding electrodes, the burial depth should generally not be less than 0.7 meters. In scenarios with high electrical safety requirements, grounding electrodes typically need to be driven 2.5 to 3 meters deep. Excavation work is required when burying the grounding section.
[0003] CN222883864U discloses a power construction grounding device. This device includes a grounding rod with an installation assembly on its upper surface. To prevent breakage between the wire and the conductive rod during installation, the grounding rod is rotated into the ground, exposing the installation sleeve. A threaded sleeve is then threaded into the installation sleeve, connecting the wire to the grounding rod. A movable block is moved downwards, causing the conductive rod to move downwards within the movable component, and its bottom engages with a connector. When the conductive rod is energized, the voltage is transmitted through the connector to the grounding rod and then to the ground. Simultaneously, the movable block engages with a limiting groove, ensuring that two limiting components fit snugly against the outer surface of the movable component. A bolt passes through the two limiting components and is secured with a nut. This prevents the connection between the grounding rod and the wire from rotating and breaking during installation. The current technology involves rotating the grounding rod into the ground and installing a spiral soil discharge trough on the surface of the grounding rod to facilitate soil insertion. However, according to the specifications, the grounding part can be made of threaded steel to avoid poor contact between the spiral part and the soil. Therefore, a new grounding device is needed. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a power construction grounding device, which solves the problem of inconvenient power construction grounding mentioned in the background art.
[0005] Technical solution
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a power construction grounding device, including a bracket fixedly connected to the bottom surface, with limit rods inserted at both ends of the bracket, a soil entry pipe in the middle of the bracket, a connecting plate at the end of the soil entry pipe, the connecting plate being slidably connected to the limit rods, a threaded groove being opened inside the soil entry pipe, a threaded sleeve engaging inside the soil entry pipe, a rotating disk being provided at the top of the threaded sleeve, and a limit sleeve being inserted above both limit rods, the limit sleeve being fitted onto the outer surface of the threaded sleeve.
[0007] Furthermore, the upper surface of the bracket is fixedly installed with a plug-in protrusion, the limiting rod is inserted into the plug-in protrusion, and ear plates are provided on both sides of the limiting sleeve. A stepped hole is opened in the middle of the ear plate. The bottom diameter of the stepped hole is the same as the diameter of the plug-in protrusion, and the top diameter of the stepped hole is the same as the diameter of the limiting rod.
[0008] Furthermore, an extension rod is inserted into the upper surface of the rotating disk, and the extension rod is located on the outside of the rotating disk away from the insertion end.
[0009] Furthermore, the limiting rod is a hollow sleeve, and the bottom end of the soil insertion pipe is a conical part.
[0010] Furthermore, a counterweight box is provided above the outer ring of the bracket, and the interior of the counterweight box is used to support heavy objects.
[0011] Furthermore, at least three ground anchors are inserted above the outer ring of the bracket, and the ground anchors are distributed in a ring around the center line of the bracket.
[0012] Furthermore, the top end of the soil inlet pipe is threadedly connected to a threaded block that is connected to a grounding wire, and the part of the top end of the threaded block that is not inserted into the threaded sleeve is provided with a protrusion.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. This power construction grounding device, through the rotation of the threaded sleeve under the restriction of the bracket and the limiting rod, allows the soil insertion pipe to gradually move downwards into the ground until the specified length of the soil insertion pipe is inserted into the soil. This setting makes it relatively convenient to install the grounding part, and the grounding is completed by connecting the grounding wire to the soil insertion pipe.
[0015] 2. The power construction grounding device has a plug-in protrusion fixedly installed on the upper surface of the bracket. The limiting rod is inserted into the plug-in protrusion. The limiting sleeve has ear plates on both sides. A stepped hole is opened in the middle of the ear plate. The bottom diameter of the stepped hole is the same as the diameter of the plug-in protrusion, and the top diameter of the stepped hole is the same as the diameter of the limiting rod. In this way, when the tool is retracted, the limiting sleeve can be installed on the bracket by connecting the stepped hole and the plug-in protrusion, which facilitates the retraction of the device. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the bracket connection of this utility model;
[0018] Figure 3 This is a half-sectional schematic diagram of the soil insertion pipe of this utility model;
[0019] Figure 4This is a schematic diagram of the threaded block connection of this utility model;
[0020] Figure 5 This is a schematic diagram of the extension rod connection of this utility model.
[0021] In the diagram: 1. Bracket; 2. Limiting rod; 3. Soil insertion pipe; 4. Connecting plate; 5. Threaded groove; 6. Threaded sleeve; 7. Rotary disk; 8. Extension rod; 9. Limiting sleeve; 10. Insertion protrusion; 11. Ear plate; 12. Stepped hole; 13. Counterweight box; 14. Ground nail; 15. Threaded block. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] See Figure 1-5 The power construction grounding device includes a bracket 1 fixedly connected to the bottom surface. Limiting rods 2 are inserted at both ends of the bracket 1. A soil insertion pipe 3 is provided in the middle of the bracket 1. A connecting plate 4 is provided at the end of the soil insertion pipe 3. The connecting plate 4 is slidably connected to the limiting rods 2. A threaded groove 5 is opened inside the soil insertion pipe 3. A threaded sleeve 6 is engaged inside the soil insertion pipe 3. A rotating disk 7 is provided at the top of the threaded sleeve 6. A limiting sleeve 9 is inserted above the two limiting rods 2. The limiting sleeve 9 is sleeved on the outer surface of the threaded sleeve 6. By rotating the threaded sleeve 6, under the restriction of the bracket 1 and the limiting rods 2, the soil insertion pipe 3 can be moved gradually downwards into the ground until the soil insertion pipe 3 of a specified length is inserted into the soil. This setting makes it easier to install the grounding part. The grounding is completed by connecting the grounding wire to the soil insertion pipe 3.
[0024] A plug-in protrusion 10 is fixedly installed on the upper surface of the bracket 1. The limiting rod 2 is inserted into the plug-in protrusion 10. Ear plates 11 are provided on both sides of the limiting sleeve 9. A stepped hole 12 is opened in the middle of the ear plate 11. The bottom diameter of the stepped hole 12 is the same as the diameter of the plug-in protrusion 10, and the top diameter of the stepped hole 12 is the same as the diameter of the limiting rod 2. In this way, when the tool is retracted, the step hole 12 and the plug-in protrusion 10 are connected to install the limiting sleeve 9 on the bracket 1, which facilitates the retraction of the device.
[0025] An extension rod 8 is inserted into the upper surface of the rotating disk 7. The extension rod 8 is located on the outside of the rotating disk 7 away from the insertion end. This arrangement increases the lever arm, making it easier to rotate the rotating disk 7.
[0026] The limiting rod 2 uses a hollow sleeve, which reduces the overall weight of the device. The bottom end of the soil insertion pipe 3 is a conical part, which makes it easy to insert into the soil.
[0027] A counterweight box 13 is provided above the outer ring of the support 1. The inside of the counterweight box 13 is used to support heavy objects. Locally sourced materials such as soil can be placed inside the counterweight box 13, or salt water can be put into the counterweight box 13. After the counterweight effect is completed, the salt water is poured out to increase the conductivity between the soil and the soil inlet pipe 3.
[0028] A ground nail 14 is inserted into the upper outer ring of the bracket 1. There are at least three ground nails 14. The ground nails 14 are distributed in a ring around the center line of the bracket 1. By setting multiple ground nails 14, the rotation of the bracket 1 can be restricted.
[0029] The top end of the infill pipe 3 is threaded with a threaded block 15 that is connected to the grounding wire. The part of the top end of the threaded block 15 that is not inserted into the threaded sleeve 6 is provided with a protrusion. By setting the threaded block 15, the connection area between the grounding wire and the infill pipe 3 can be increased, thus avoiding a loose connection between the infill pipe 3 and the grounding wire.
[0030] In use, after placing the bracket 1 in the designated position, the bracket 1 is limited by the counterweight box 13 or the grounding nail 14. At this time, the soil insertion pipe 3 and the threaded sleeve 6 are in the fully overlapping part. The limiting rod 2 is inserted into the inside of the insertion protrusion 10. The extension rod 8 is connected to the rotating disk 7, and the extension rod 8 is rotated to drive the rotating disk 7 and the threaded sleeve 6 to rotate, thereby driving the soil insertion pipe 3 to gradually insert into the soil and causing the threaded sleeve 6 to separate from the soil insertion pipe 3. The limiting rod 2 and the threaded sleeve 6 are separated from the bracket 1. Then, the threaded block 15 connected to the grounding wire is connected to the soil insertion pipe 3 to complete the grounding treatment.
[0031] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A grounding device for power construction, comprising a bracket (1) fixedly connected to the bottom surface, characterized in that: Limiting rods (2) are inserted at both ends of the support (1). A soil inlet pipe (3) is provided in the middle of the support (1). A connecting plate (4) is provided at the end of the soil inlet pipe (3). The connecting plate (4) is slidably connected to the limiting rod (2). A threaded groove (5) is opened inside the soil inlet pipe (3). A threaded sleeve (6) is engaged inside the soil inlet pipe (3). The top end of the threaded sleeve (6) is provided with a rotating disk (7); A limiting sleeve (9) is inserted above both limiting rods (2), and the limiting sleeve (9) is fitted onto the outer surface of the threaded sleeve (6).
2. The power construction grounding device according to claim 1, characterized in that: The upper surface of the bracket (1) is fixedly installed with a plug-in protrusion (10), and the limiting rod (2) is inserted into the inside of the plug-in protrusion (10). The limiting sleeve (9) is provided with ear plates (11) on both sides. A stepped hole (12) is opened in the middle of the ear plate (11). The bottom diameter of the stepped hole (12) is the same as the diameter of the plug-in protrusion (10), and the top diameter of the stepped hole (12) is the same as the diameter of the limiting rod (2).
3. The power construction grounding device according to claim 1, characterized in that: An extension rod (8) is inserted into the upper surface of the rotating disk (7), and the extension rod (8) is located on the outside of the rotating disk (7) away from the insertion end.
4. The power construction grounding device according to any one of claims 1-3, characterized in that: The limiting rod (2) is a hollow sleeve, and the bottom end of the soil insertion pipe (3) is a conical part.
5. The power construction grounding device according to claim 4, characterized in that: A counterweight box (13) is provided above the outer ring of the bracket (1), and the interior of the counterweight box (13) is used to support heavy objects.
6. The power construction grounding device according to claim 4, characterized in that: The bracket (1) has a ground nail (14) inserted above the outer ring. There are at least three ground nails (14), and the ground nails (14) are distributed in a ring around the center line of the bracket (1).
7. The power construction grounding device according to claim 5 or 6, characterized in that: The top end of the soil inlet pipe (3) is threadedly connected to a threaded block (15) that is connected to the grounding wire, and the part of the top end of the threaded block (15) that is not inserted into the threaded sleeve (6) is provided with a protrusion.