Electric power grounding pile for electric power engineering

Abstract

The utility model relates to the field of electric power grounding piles, and discloses an electric power grounding pile for electric power engineering, the electric power grounding pile comprises a grounding pile, the bottom of the grounding pile is fixedly provided with a spiral bit, the grounding pile is provided with a positioning ring used for positioning the grounding pile during installation and a first supporting rod used for fixedly supporting the positioning ring, and the bottom of the first supporting rod is in a cross-shaped opening shape; the positioning ring used for positioning the ground pile during installation and the first supporting rod used for fixing and supporting the positioning ring are arranged on the ground pile, and the ground pile is in threaded connection with the positioning ring, so that during installation, the positioning ring is firmly fixed to the preset ground through the supporting assembly; the positioning ring is arranged on the ground stud, so that the ground stud can rotate around the common axis of the positioning ring during rotary installation, accurate positioning is further realized, it is ensured that the ground stud does not deflect in the installation process, the accuracy of the position of the ground stud can be ensured, pile body deflection caused by manual judgment or equipment operation errors is avoided, and the installation efficiency is improved. And the overall layout precision of the grounding system is improved.

Description

Technical Field

[0001] The present application relates to the field of power grounding piles, and in particular to a power grounding pile for power engineering. Background Art

[0002] 10kv high voltage grounding pile is an important component in the power system used to establish a good electrical connection between the grounding part of electrical equipment, facilities or transmission lines and the earth. This type of grounding pile is mainly used to ensure the safe operation of the power system, protect people and equipment from electric shock, provide lightning protection, suppress electromagnetic interference, and ensure the grounding loop of the system stability;

[0003] In substations, when high-voltage equipment such as transformers, circuit breakers, and disconnectors require regular maintenance or overhaul, 10kV high-voltage grounding piles are used as temporary grounding to ensure the safety of workers. In urban distribution network overhead lines, cable terminals, switch stations, etc., 10kV high-voltage grounding piles are also used to quickly establish temporary grounding in order to meet the needs of safe operation and maintenance.

[0004] The existing 10kv high-voltage grounding piles often use spiral grounding piles. Through their spiral structure, they provide a larger surface area in contact with the soil than straight-pole piles of the same volume. This means that at the same grounding depth, the spiral grounding pile can more effectively disperse the current to a wider range of soil, reduce the grounding resistance, and enhance the current discharge capacity, which is crucial to reducing the contact voltage and step voltage of the grounding system and ensuring the safety of power equipment and personnel.

[0005] However, when installing the existing spiral grounding piles, if they encounter uneven geological conditions such as harder or looser soil layers, rock layers, and changes in groundwater levels, the pile body may be unevenly stressed during the driving process, resulting in deflection. Secondly, during installation, no positioning components are used for auxiliary installation, and only relying on the operator's experience and visual judgment, it is also easy to cause the spiral pile body to deflect. The deflected spiral pile body may not be able to form an ideal close contact with the soil, resulting in an increase in grounding resistance. The increase in grounding resistance will weaken the current discharge capacity, prolong the duration of the fault current, and increase the risk of overvoltage damage to power equipment. At the same time, it may also increase the contact voltage and step voltage, threatening personal safety. In order to solve the above problems, an electric grounding pile for power engineering is proposed.

[0006] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to solve the problem of power grounding piles, the present application provides a power grounding pile for power engineering.

[0008] The present application provides an electric power grounding pile for electric power engineering, which adopts the following technical solution:

[0009] An electric grounding pile for electric power engineering comprises a grounding pile with a spiral drill bit fixed at the bottom, the grounding pile is provided with a positioning ring for positioning the grounding pile during installation and a support assembly for fixedly supporting the positioning ring, the support assembly comprises a support rod 1, a support rod 2 and a threaded sleeve, the support rod 2 is movably connected to the support rod 1, the threaded sleeve is threadedly connected to the support rod 1, the support rod 1 is connected to the positioning ring, and the grounding pile is threadedly connected to the positioning ring.

[0010] Preferably, a joint placement box is provided in the grounding pile, a limit block is provided on the joint placement box, and a protective component for protecting the joint in the joint placement box is also provided on the grounding pile, the protective component includes a protective cover, a fixing ear, and a fixing button, the fixing ear is fixed on the protective cover, the fixing button is fixed on the fixing ear, and the protective cover is fixed to the grounding pile via the fixing button.

[0011] Preferably, a placement groove is provided in the grounding pile corresponding to the joint placement box, and a limiting groove is provided at the bottom of the placement groove corresponding to the limiting block.

[0012] Preferably, a fixing groove is provided on the grounding pile corresponding to the fixing button.

[0013] Preferably, a limiting column is fixed to the bottom of the fixing button.

[0014] In summary, compared with the related art, the utility model has the following beneficial effects:

[0015] By providing a positioning ring for positioning the grounding pile during installation and a supporting assembly for fixedly supporting the positioning ring on the grounding pile, and the grounding pile is threadedly connected to the positioning ring, when the grounding pile is installed, the positioning ring is first firmly fixed on the predetermined ground through the supporting assembly, so that the grounding pile can rotate around the common axis with the positioning ring during rotational installation, thereby achieving precise positioning and ensuring that the grounding pile will not be skewed during the installation process. Compared with related technologies, the accuracy of the grounding pile position can be ensured, the deflection of the pile body caused by manual judgment or equipment operation errors can be avoided, and the overall layout accuracy of the grounding system is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0017] Figure 2 It is a schematic diagram of the overall exploded structure of the embodiment of the application;

[0018] Figure 3is a schematic diagram of a partial side cross-sectional structure of a ground pile according to an embodiment of the application;

[0019] Figure 4 It is a schematic diagram of the support component structure of an embodiment of the application.

[0020] Explanation of the accompanying drawings: 1. Grounding pile; 2. Auger bit; 3. Positioning ring; 4. Support rod one; 5. Support rod two; 6. Threaded sleeve; 7. Connecting block; 8. Protective cover; 9. Fixing ear; 10. Limiting column; 11. Fixing button; 12. Fixing groove; 13. Connector placement box; 14. Placement groove; 15. Limiting groove; 16. Limiting block. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 This application is described in further detail.

[0022] The present application embodiment discloses an electric power grounding pile for electric power engineering. Figure 1-4 , an electric power grounding pile for electric power engineering, comprising a spiral drill bit 2 fixed at the bottom of the grounding pile 1, a positioning ring 3 is threadedly connected to the grounding pile 1, a connecting block 7 is rotatably arranged on the positioning ring, the bottom of the connecting block 7 is fixed to a support rod 1 4, the bottom of the support rod 1 4 is in a cross opening shape, a support rod 2 5 is movably arranged in the support rod 1 4 and is gap-matched with the inner wall of the support rod 1 4, the support rod 1 4 is fixedly connected to the support rod 2 5 through a threaded sleeve 6, the threaded sleeve 6 is threadedly connected to the support rod 1 4, and the threaded sleeve 6 is gap-matched with the support rod 2 5;

[0023] It should be noted that after the positioning ring 3 is fixed to the ground, the grounding pile 1 can rotate around the common axis with the positioning ring 3 during rotational installation, thereby achieving precise positioning and ensuring that the grounding pile 1 will not be skewed during installation;

[0024] It should be further explained that the bottom of the support rod 1 4 is in the shape of a cross opening. The cross opening design provides four symmetrical contact points. The four open ends can evenly disperse the pressure on the part of the support rod 2 5 inside the support rod 1 4, forming a stable support and clamping effect, and enhancing the stability of the fastening. At the same time, the cross opening structure avoids the stress concentration phenomenon caused by single-point or linear contact, disperses the force to a larger contact area, reduces the local stress on the surface of the support rod 2 5, and is conducive to extending the service life of the support rod 1 4 and the support rod 2 5. In actual use, the support rod 2 5 will produce slight deformation due to factors such as thermal expansion and contraction, load changes or manufacturing tolerances. The cross opening at the bottom of the support rod 1 4 has a certain elastic adaptability, which can accommodate slight size changes of the support rod 2 5 within a certain range and maintain an effective fastening state.

[0025] By adopting the above technical solution, when installing the grounding pile 1, first place the grounding pile 1 to the preset installation position through the positioning ring 3, insert the support rod 5 into the ground and adjust it to a suitable position, then tighten the threaded sleeve 6, and under the action of an external driving device, screw the grounding pile 1 into the preset depth along the direction of rotation of the thread of the positioning ring 3.

[0026] Reference Figure 2 , 3 A placement groove 14 is provided in the grounding pile 1, and a limit groove 15 is extended from the bottom of the placement groove 14. A joint placement box 13 is provided in the placement groove 14, and a limit block 16 is provided on the joint placement box 13. The limit block 16 is clearance-matched with the limit groove 15;

[0027] By adopting the above technical scheme, the connector placement box 13 is used to place connectors for connecting to other grounding conductors (such as grounding flat steel, grounding wire, etc.). The connector is placed in the connector placement box 13, and the connector and the inner wall of the connector placement box 13 have an interference fit, which can effectively prevent the connector from loosening due to vibration or external force during long-term use, thereby improving the reliability of the connection. At the same time, the connector placement box 13 and the limit block 16 thereon cooperate with the placement groove 14 and the limit groove 15 thereunder, which can facilitate the maintenance and inspection of the connector.

[0028] Reference Figure 1 , 2 The grounding pile 1 is also provided with a protective cover 8 for protecting the joint in the joint placement box 13. The protective cover 8 is transparent. A fixing ear 9 is fixed on the protective cover 8 in the circumferential direction. A fixing button 11 is fixed on the fixing ear 9. The protective cover 8 is fixed to the grounding pile 1 through the fixing button 11. A fixing groove 12 is provided on the grounding pile 1 corresponding to the fixing button 11. The fixing button 11 is engaged with the fixing groove 12.

[0029] By adopting the above technical solution, the transparent protective cover 8 makes it easy to check the condition of the joint from the outside, and the engagement of the fixing button 11 and the fixing groove 12 enables the protective cover 8 to be fixed on the grounding pile 1, thereby protecting the joint.

[0030] Reference Figure 1 , 2 , the bottom of the fixing button 11 is fixed with a limiting post 10;

[0031] By adopting the above technical solution, the limiting column 10 can limit the position of the positioning ring 3 on the grounding pile 1, and can ensure the accuracy of the installation depth of the grounding pile 1.

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0033] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electric power grounding pile for electric power engineering, comprising a grounding pile (1) with a spiral drill bit (2) fixed at the bottom, characterized in that: The grounding pile (1) is provided with a positioning ring (3) for positioning the grounding pile (1) during installation, and a support rod (4) for fixedly supporting the positioning ring (3); the bottom of the support rod (4) is in the shape of a cross opening, and the grounding pile (1) is threadedly connected to the positioning ring (3).

2. The electric power grounding pile for electric power engineering according to claim 1, characterized in that: A joint placement box (13) is arranged inside the grounding pile (1), and a limit block (16) is arranged on the joint placement box (13).

3. The electric power grounding pile for electric power engineering according to claim 2, characterized in that: The grounding pile (1) is also provided with a protection component for protecting the joint in the joint placement box (13); The protective assembly comprises a protective cover (8), a fixing ear (9), and a fixing button (11); the fixing ear (9) is fixed on the protective cover (8); the fixing button (11) is fixed on the fixing ear (9); and the protective cover (8) is fixed to the grounding pile (1) via the fixing button (11).

4. The electric power grounding pile for electric power engineering according to claim 2, characterized in that: A placement groove (14) is provided in the grounding pile (1) corresponding to the joint placement box (13), and a limit groove (15) is provided at the bottom of the placement groove (14) corresponding to the limit block (16).

5. The electric power grounding pile for electric power engineering according to claim 1, characterized in that: The grounding pile (1) is provided with a fixing groove (12).

6. The electric power grounding pile for electric power engineering according to claim 4, characterized in that: A limiting column (10) is fixed to the bottom of the fixing button (11).

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