Anti-loosening power grounding pile

Abstract

The invention discloses an anti-loosening electric power grounding pile in the technical field of electric power construction, and aims to solve the problems that an existing grounding pile is easy to loosen due to soil loosening or external force drawing, and the installation is difficult due to a barb structure. The grounding pile comprises an outer pile body, an inner pile body, an anti-drawing mechanism, a driving mechanism and a fixing mechanism, the bottom end of the outer pile body is sharp and can be conveniently inserted into soil; a mounting groove is formed in the top end, and the inner pile body is movably inserted into the mounting groove; an annular containing groove is formed in the peripheral side of the outer pile body, an anti-drawing mechanism is correspondingly arranged, and a fixing piece of the anti-drawing mechanism can rotate into the groove. The driving mechanism enables the fixing pieces to be unfolded synchronously through the control rod and the gear set, and the anti-drawing capacity is enhanced. The fixing mechanism fixes the inner pile body and the outer pile body through bolts. By optimizing the structural design, rapid installation, efficient fixing and stable grounding of the grounding pile are achieved, the safety and reliability of an electric power grounding system are remarkably improved, and the grounding pile is suitable for various complex geological conditions and has important practical application value.

Description

Technical Field

[0001] This invention relates to the field of power construction technology, specifically to an anti-loosening power grounding pile. Background Technology

[0002] Power grounding stakes are critical components in power systems, primarily used for grounding. Their main function is to connect the grounding wires of electrical equipment to the earth, ensuring the safe operation of the power system. Grounding stakes are typically installed outdoors, achieving grounding by being inserted into the soil. This effectively prevents damage to electrical equipment and personnel from faults such as lightning strikes and short circuits, ensuring the stability and reliability of the power system. In a power grounding system, the stability and reliability of the grounding stakes are crucial for the safe operation of the entire system.

[0003] However, existing power grounding stakes have some shortcomings in practical use. First, traditional grounding stakes are prone to loosening after installation due to factors such as soil loosening and external pulling forces, leading to unstable grounding performance and potentially causing safety accidents. Second, most existing anti-loosening measures rely on barbed structures. While these structures can increase the stability of the grounding stake to some extent, their rough outer surface makes it difficult to insert the stake into the ground, resulting in inconvenient installation and significant construction difficulties.

[0004] To address the aforementioned issues, this application provides an anti-loosening power grounding stake. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-loosening power grounding stake to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention specifically adopts the following technical solution: A type of anti-loosening grounding stake, comprising: The grounding pile body includes an outer pile body and an inner pile body. The bottom end of the outer pile body is sharp and used for insertion into the ground. The top end of the outer pile body is constructed with an installation groove. The inner pile body is movably inserted into the installation groove. The outer periphery of the outer pile body is constructed with at least one annular placement groove. Not less than one anti-pull-out mechanism, several anti-pull-out mechanisms corresponding one-to-one with several annular positioning slots, each anti-pull-out mechanism including several fixed plates distributed in a rotating array, one end of each fixed plate being rotatably mounted inside the annular positioning slot, and each fixed plate being able to rotate completely into the annular positioning slot; A drive mechanism installed on the outer pile body, the drive mechanism being used to drive several of the fixed plates to rotate synchronously; A fixing mechanism installed on the inner pile body, the fixing mechanism being used to fix the inner pile body to the outer pile body.

[0007] Furthermore, the driving mechanism includes several control rods, control gears corresponding to the number of control rods, and a driving gear. The number of control rods corresponds to the number of fixing plates in the same anti-pull-out mechanism. A rotating groove communicating with the annular mounting groove is constructed along the length direction on the top of the outer pile body. The control rods are rotatably installed inside the rotating groove. One end of the fixing plate is fixedly sleeved on the corresponding control rod. The control gear is fixedly sleeved on the top of the corresponding control rod. The driving gear is rotatably installed on the top of the outer pile body and coaxial with the outer pile body. A through groove with a diameter larger than the diameter of the inner pile body is constructed through the middle of the driving gear. Several control gears mesh with the driving gear. During the process of the inner pile body being inserted into the mounting groove, the driving gear can be driven to rotate.

[0008] Furthermore, a sliding block is fixed on the inner wall of the groove, and an arc-shaped sliding groove is constructed on the outer periphery of the inner pile body. The two ends of the sliding groove pass through the two ends of the inner pile body respectively, and the sliding block is slidably installed inside the sliding groove.

[0009] Furthermore, one end of the sliding block is connected to a ball bearing, which is fixed to the inner wall of the sliding groove.

[0010] Furthermore, a guide block is fixed on the inner wall of the mounting groove, and a guide groove is constructed along the length direction on the outer periphery of the inner pile body. The guide groove passes through both ends of the inner pile body, and the guide block slides inside the guide groove.

[0011] Furthermore, a protective shell is fixedly fitted on the outer periphery of the top of the outer pile body. Several control gears and drive gears are located inside the protective shell. A through hole with a diameter larger than that of the inner pile body is formed in the middle of the protective shell. The fixing mechanism includes a fixing plate fixed to the top of the inner pile body. The fixing plate is connected to the protective shell by bolts. When the fixing plate is placed on top of the protective shell, the bottom end of the inner pile body contacts the inner wall of the mounting groove, and several fixing plates in the same anti-pull-out mechanism are in an open state.

[0012] Furthermore, the top of the protective shell is constructed with an annular mating groove, and the bottom of the fixing plate is fixed with a sealing rubber strip, which is movably engaged inside the mating groove.

[0013] Furthermore, the protective shell is fixedly fitted with a ground plate, which has several evenly distributed mounting holes through it. Ground nails are movably inserted into the mounting holes, and a hammer head is fixed to the top of each ground nail. A pry groove is formed on the outer periphery of the hammer head.

[0014] Furthermore, the outer peripheral side of the fixing piece has a knife-edge shape.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The anti-pull-out mechanism designed in this scheme includes several fixed plates arranged in a rotating array. These fixed plates can rotate and unfold synchronously under the drive of the drive mechanism to form a structure similar to an "anchor", which significantly enhances the anti-pull-out ability of the grounding pile in the soil and effectively prevents the grounding pile from loosening due to external forces.

[0016] 2. In this invention, the bottom end of the outer pile body of the grounding pile is sharp, which facilitates quick insertion into the soil. At the same time, the outer periphery of the fixing plate is knife-shaped, which can effectively reduce resistance when inserted into the soil, further improving the insertion efficiency of the grounding pile.

[0017] 3. The grounding pile in this solution achieves rapid installation and fixation through the movable insertion design of the inner and outer pile bodies, as well as the cooperation between the drive mechanism and the fixing mechanism. During the process of inserting the inner pile body into the installation slot, the drive gear can be driven to rotate, completing the unfolding operation of the fixing plate. No additional electric drive equipment is required, which greatly improves the convenience and efficiency of installation.

[0018] 4. By setting an annular mounting groove and an anti-pull-out mechanism on the grounding pile body and using a drive mechanism to realize the synchronous rotation of the fixing plate, the grounding pile can form multiple stable support points in the soil, thereby enhancing the overall stability of the grounding pile. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present invention Figure 1 A three-dimensional sectional view; Figure 3 For the present invention Figure 1 A three-dimensional sectional view from another direction; Figure 4 For the present invention Figure 3 An enlarged view of structure A in the middle; Figure 5 For the present invention Figure 1 A three-dimensional structural diagram of the middle section; Figure 6 This is a three-dimensional structural schematic diagram of another state of the present invention; Figure 7 For the present invention Figure 6 A three-dimensional sectional view; Figure 8 For the present invention Figure 6 A three-dimensional sectional view from another direction; Figure 9 For the present invention Figure 8 An enlarged view of the B-structure.

[0020] In the diagram: 1. Grounding stake body; 11. Outer stake body; 111. Rotary groove; 12. Inner stake body; 121. Sliding groove; 122. Guide groove; 13. Mounting groove; 131. Guide block; 14. Annular mounting groove; 15. Protective shell; 151. Connecting groove; 16. Grounding plate; 161. Mounting hole; 162. Grounding nail; 163. Hammer head; 2. Anti-pull-out mechanism; 21. Fixing plate; 3. Drive mechanism; 31. Control rod; 32. Control gear; 33. Drive gear; 34. Through groove; 341. Sliding block; 342. Rolling ball; 4. Fixing mechanism; 41. Fixing plate; 42. Bolt; 43. Sealing rubber strip. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0022] This embodiment provides an anti-loosening power grounding stake, mainly to address some shortcomings of existing power grounding stakes in practical use. Firstly, traditional grounding stakes are prone to loosening after installation due to soil loosening, external pulling forces, etc., leading to unstable grounding performance and potentially causing safety accidents. Secondly, most existing anti-loosening measures rely on barbed structures. While these structures can increase the stability of the grounding stake to some extent, the rough outer surface makes it difficult to insert the grounding stake into the ground, resulting in inconvenient installation and significant construction difficulties. The following technical solution is provided, which will be discussed in conjunction with... Figures 1-9 Please provide a detailed explanation: Example 1:

[0023] A type of anti-loosening grounding stake, comprising: The grounding pile body 1 includes an outer pile body 11 and an inner pile body 12. The bottom end of the outer pile body 11 is sharp to facilitate quick insertion into the ground and reduce resistance during the insertion process. The top end of the outer pile body 11 has an installation groove 13. The inner pile body 12 is movably inserted into the installation groove 13. The outer periphery of the outer pile body 11 has at least one annular installation groove 14. There is at least one anti-pull-out mechanism 2, and several anti-pull-out mechanisms 2 correspond one-to-one with several annular placement grooves 14. The anti-pull-out mechanism 2 includes several fixed plates 21 distributed in a rotating array. One end of the fixed plate 21 is rotatably installed inside the annular placement groove 14. The fixed plate 21 can be completely rotated into the annular placement groove 14 so as not to obstruct the insertion of the outer pile body 11 during installation. The outer peripheral side of the fixed plate 21 is knife-shaped. This design can effectively reduce resistance when inserted into the soil, and at the same time, it can significantly enhance the anti-pull-out ability of the grounding pile body 1 after unfolding. A drive mechanism 3, installed on the outer pile body 11, drives several fixing plates 21 to rotate synchronously. When the inner pile body 12 is inserted into the mounting groove 13, the drive mechanism 3 is triggered, causing the fixing plates 21 to unfold from the annular mounting groove 14, forming an "anchor"-like structure, thereby enhancing the stability of the grounding pile in the soil. This design not only improves the pull-out resistance of the grounding pile but also avoids the difficulties of inserting the traditional barbed structure into the soil, greatly improving the ease of installation. The fixing mechanism 4 installed on the inner pile body 12 is used to fix the inner pile body 12 and the outer pile body 11. Through the fixing action of the fixing mechanism 4, the inner pile body 12 and the outer pile body 11 form a whole, which further enhances the structural stability of the grounding pile. This fixing method not only ensures the stability of the grounding pile during use, but also facilitates installation and maintenance.

[0024] The anti-loosening power grounding stake in this embodiment achieves rapid insertion, efficient fixing, and stable grounding through optimized structural design. The knife-edge design and synchronous rotation mechanism of the fixing plate 21 significantly enhance the grounding stake's pull-out resistance while reducing resistance during soil insertion and improving installation efficiency. The ingenious design of the drive mechanism 3 and fixing mechanism 4 further enhances the stability and reliability of the grounding stake, enabling it to adapt to various complex geological conditions.

[0025] In this embodiment, the design of the drive mechanism 3 is a key part of realizing the function of preventing loosening of the power grounding pile. Its structure and operation method are closely matched with the overall design of the grounding pile to ensure that the grounding pile can efficiently complete the unfolding operation of the fixing plate 21 during installation, thereby enhancing the grounding pile's pull-out resistance. For details, please refer to [link to relevant documentation]. Figures 2-9The drive mechanism 3 includes several control rods 31, control gears 32 that are the same number as the control rods 31 and correspond one-to-one, and a drive gear 33. The number of control rods 31 is the same as the number of fixed plates 21 in the same anti-pull-out mechanism 2 and corresponds one-to-one. The top of the outer pile body 11 has a rotating groove 111 that is connected to the annular mounting groove 14 along the length direction. The control rods 31 are rotatably installed inside the rotating groove 111. One end of the fixed plate 21 is fixedly sleeved on the corresponding control rod 31. This design allows the rotation of the control rod 31 to directly drive the rotation of the fixed plate 21. The control gear 32 is fixedly sleeved on the top of the corresponding control rod 31. The drive gear 33 is rotatably installed on the top of the outer pile body 11 and is coaxial with the outer pile body 11. The middle of the drive gear 33 has a through groove 34 with a diameter larger than the diameter of the inner pile body 12. Several control gears 32 mesh with the drive gear 33. During the process of the inner pile body 12 being inserted into the mounting groove 13, the drive gear 33 can be driven to rotate. During the installation of the grounding pile body 1, when the inner pile body 12 is inserted into the installation groove 13, it will drive the drive gear 33 to rotate. Since the drive gear 33 meshes with the control gear 32, the rotation of the drive gear 33 will be transmitted to the control rod 31 through the control gear 32, thereby driving the fixing plate 21 to rotate synchronously and unfold. This design not only realizes the automatic unfolding of the fixing plate 21, but also ensures the synchronicity and consistency of the unfolding process, which greatly improves the installation efficiency and stability of the grounding pile.

[0026] With this design, the grounding stake body 1 can quickly and accurately unfold the fixing plate 21 during installation, which significantly enhances the grounding stake's pull-out resistance in the soil. At the same time, since the unfolding of the fixing plate 21 is automatically completed by the insertion of the inner stake body 12, no additional power or manual driving is required, which greatly simplifies the installation process and improves the convenience and efficiency of installation. In addition, this design also avoids the difficulties of inserting the traditional barbed structure into the soil, further optimizing the performance of the grounding stake.

[0027] In this embodiment, in order to further optimize the installation process of the grounding pile and ensure the smooth operation of the drive mechanism 3, a unique sliding guide structure is designed. This structure not only improves the matching accuracy between the inner pile body 12 and the outer pile body 11, but also ensures the stability of the drive gear 33 during rotation. Specifically, a sliding block 341 is fixed on the inner wall of the through groove 34, and an arc-shaped sliding groove 121 is constructed on the outer periphery of the inner pile body 12. The two ends of the sliding groove 121 pass through the two ends of the inner pile body 12 respectively. The sliding block 341 is slidably installed inside the sliding groove 121. This design provides a stable guide path for the inner pile body 12 during the process of inserting the inner pile body 12 into the installation groove 13, ensuring that it can be accurately inserted and drive the drive gear 33 to rotate. One end of the sliding block 341 is ball-connected to a ball 342, which is fixed to the inner wall of the sliding groove 121. This ball connection design allows the sliding block 341 to adapt more flexibly to the movement of the inner pile 12 during sliding, reducing friction and improving the smoothness of sliding. At the same time, the presence of the ball 342 further enhances the fit accuracy between the sliding block 341 and the sliding groove 121, ensuring the stability and reliability of the entire drive mechanism 3.

[0028] by Figure 5 , Figure 6 and Figure 7 For reference, the bottom of the sliding groove 121 is on the left and the top is on the right. During the process of inserting the inner pile 12 into the installation groove 13, the sliding block 341 first slides to the bottom of the sliding groove 121. As the inner pile 12 is inserted, it will drive the drive gear 33 to rotate counterclockwise, thereby driving several control gears 32 to rotate clockwise. The control rod 31 drives the fixing plate 21 to rotate out from the annular installation groove 14. Several fixing plates 21 eventually form an anchor-like structure to fix the outer pile 11 and prevent it from being pulled out.

[0029] Furthermore, a protective shell 15 is fixedly fitted on the outer periphery of the top of the outer pile body 11. The main function of the protective shell 15 is to protect the internal drive mechanism 3 and prevent soil, moisture and other external factors from eroding and interfering with the drive mechanism 3. Several control gears 32 and drive gears 33 are located inside the protective shell 15. This design not only improves the service life of the drive mechanism 3, but also enhances the sealing and protection performance of the entire grounding pile. The protective shell 15 has a through hole with a diameter larger than that of the inner pile body 12 in the middle, so that the inner pile body 12 can be smoothly inserted into and pass through the protective shell 15 and cooperate with the mounting groove 13 of the outer pile body 11. The fixing mechanism 4 includes a fixing plate 41 fixed to the top of the inner pile body 12. The fixing plate 41 is connected to the protective shell 15 by bolts 42. When the fixing plate 41 is placed on the top of the protective shell 15, the bottom end of the inner pile body 12 contacts the inner wall of the mounting groove 13, and several fixing plates 21 in the same anti-pull-out mechanism 2 are in an open state. This design allows the inner pile 12 and the outer pile 11 to be tightly fixed together to form an integral structure. When the fixing plate 41 is placed on top of the protective shell 15, the bottom end of the inner pile 12 is in close contact with the inner wall of the mounting groove 13, ensuring a stable connection between the inner pile 12 and the outer pile 11. At the same time, several fixing plates 21 in the same anti-pull-out mechanism 2 are in an open state, forming a structure similar to an "anchor", which significantly enhances the grounding pile's anti-pull-out ability in the soil.

[0030] Through this design, the protective shell 15 not only provides effective protection for the drive mechanism 3, but also ensures the stability and reliability of the grounding pile during installation through its cooperation with the fixing mechanism 4. The fixing plate 41 is connected to the protective shell 15 by bolts 42, making the assembly and maintenance of the grounding pile more convenient. In addition, when the fixing plate 41 is placed on top of the protective shell 15, the open state of the fixing piece 21 can effectively enhance the pull-out resistance of the grounding pile, further improving the performance of the grounding pile. Example 2:

[0031] Example 2 is a further optimization of Example 1. By introducing the design of guide block 131 and guide groove 122, the installation accuracy and stability of the grounding pile are significantly improved. Specifically, guide block 131 is fixed on the inner wall of the mounting groove 13, and guide groove 122 is constructed along the length direction on the outer periphery of the inner pile body 12. Guide groove 122 passes through both ends of the inner pile body 12, and guide block 131 slides inside guide groove 122. This design plays a crucial guiding role during the insertion of the inner pile 12 into the installation slot 13. Through the cooperation of the guide block 131 and the guide groove 122, the inner pile 12 can be smoothly inserted into the installation slot 13 of the outer pile 11 along a predetermined path, ensuring the accuracy and stability of the insertion process. This guide structure design not only improves the fitting accuracy between the inner pile 12 and the outer pile 11, but also effectively reduces shaking and offset during the insertion process, enabling the grounding pile to complete the insertion operation of the inner pile 12 more smoothly during installation. The cooperation of the guide block 131 and the guide groove 122 can further enhance the connection strength between the inner pile 12 and the outer pile 11, ensuring the overall stability of the grounding pile during use. Example 3:

[0032] Example 3 is a further optimization of Example 1. By introducing a sealing rubber strip 43 and a docking groove 151 between the protective shell 15 and the fixing plate 41, the sealing performance and protection capability of the grounding pile are significantly improved. Specifically, the top of the protective shell 15 is constructed with an annular docking groove 151, and the bottom of the fixing plate 41 is fixed with a sealing rubber strip 43. The sealing rubber strip 43 is movably locked inside the docking groove 151. This design can form a tight sealing structure when the fixing plate 41 and the protective shell 15 are connected by bolts 42. The elastic properties of the sealing rubber strip 43 allow it to fit tightly against the inner wall of the docking groove 151, thereby effectively preventing moisture, dust and other external impurities from entering the interior of the protective shell 15 and protecting the internal drive mechanism 3 from corrosion. This sealed structure design not only improves the protective performance of the grounding pile, but also extends the service life of the drive mechanism 3. Through the cooperation of the sealing rubber strip 43 and the docking groove 151, the performance of the grounding pile in complex outdoor environments is significantly improved. At the same time, this design also ensures the stability and reliability of the grounding pile during installation and use, and reduces the risk of failure caused by external factors. Example 4:

[0033] Example 4 is a further optimization of Example 1. The protective shell 15 is fixedly fitted with a grounding plate 16. The grounding plate 16 has several evenly distributed mounting holes 161 through it. Ground nails 162 are movably inserted into the mounting holes 161. A hammer head 163 is fixed to the top of the ground nail 162. A prying groove is constructed on the outer periphery of the hammer head 163. This design not only facilitates the installation and removal of the ground nails 162, but also improves the adaptability of the grounding pile under different geological conditions. During installation, the grounding nail 162 is driven into the ground by the hammer head 163, which makes the grounding stake more firmly fixed in the soil. The prying groove on the hammer head 163 makes it easy to use tools to pry or pull, which facilitates the installation and removal of the grounding nail 162. With the cooperation of the grounding plate 16 and the grounding nail 162, the grounding stake is not only more stable during installation, but also makes better contact with the ground during use, ensuring the reliability of the grounding effect. Through this optimized design, the grounding pile in this embodiment can complete the fixing operation of the grounding pile more efficiently during the installation process, while ensuring the stability and grounding effect of the grounding pile during use. The cooperation between the grounding plate 16 and the ground nail 162 not only improves the installation accuracy of the grounding pile body 1, but also enhances the structural stability of the grounding pile body 1, enabling it to better adapt to complex installation environments and usage conditions.

[0034] The usage method of this anti-loosening power grounding stake is as follows: When installing the grounding pile, first align the sharp bottom end of the outer pile body 11 with the predetermined installation position. Utilize the sharp shape of the bottom end of the outer pile body 11 to quickly insert it into the ground, reducing resistance during the insertion process. As the outer pile body 11 is inserted, the anti-pull-out mechanism 2 in the annular placement groove 14 on its outer periphery is in a ready-to-trigger state. At this time, the fixing plate 21 is completely housed in the annular placement groove 14, without obstructing the insertion of the outer pile body 11, until the grounding plate 16 contacts the ground. Next, the inner pile 12 is aligned with the mounting groove 13 at the top of the outer pile 11 and inserted along the mounting groove 13. During the insertion process, the sliding groove 121 on the outer periphery of the inner pile 12 and the sliding block 341 on the inner wall of the groove 34 cooperate with each other to provide a stable guiding path for the inner pile 12, ensuring that it can be accurately inserted into the mounting groove 13. At the same time, the ball 342 at one end of the sliding block 341 rolls flexibly on the inner wall of the sliding groove 121, reducing friction and improving the smoothness of sliding. As the inner pile 12 is inserted into the installation slot 13, the inner pile 12 drives the drive gear 33 to rotate. Since the drive gear 33 meshes with the control gear 32, the rotation of the drive gear 33 is transmitted to the control rod 31 through the control gear 32, which in turn drives the fixing plate 21 to rotate synchronously and gradually unfold, forming a structure similar to an "anchor" to firmly fix the outer pile 11 in the soil. When the inner pile 12 is fully inserted into the mounting groove 13, the fixing plate 41 at its top is connected to the protective shell 15 by bolts 42. At this time, the bottom end of the inner pile 12 is in close contact with the inner wall of the mounting groove 13, ensuring a stable connection between the inner pile 12 and the outer pile 11. Meanwhile, the sealing rubber strip 43 at the bottom of the fixing plate 41 is movably locked in the docking groove 151 at the top of the protective shell 15, forming a tight sealing structure. Finally, the grounding stake is further secured by the grounding plate 16 outside the protective shell 15. The grounding stake 162 is inserted into the mounting hole 161 on the grounding plate 16, and the grounding stake 162 is driven into the ground by the hammer head 163, so that the grounding stake is more firmly fixed in the soil.

[0035] It should be noted that the specific model and specifications of each structure in this embodiment need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in the field, so it will not be described in detail. Furthermore, the principles of these components are clear to those skilled in the art, so they do not need to be described in detail here either.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A type of anti-loosening power grounding stake, characterized in that, include: The grounding pile body (1) includes an outer pile body (11) and an inner pile body (12). The bottom end of the outer pile body (11) is sharp and used for insertion into the ground. The top end of the outer pile body (11) is constructed with an installation groove (13). The inner pile body (12) is movably inserted into the installation groove (13). The outer pile body (11) has at least one annular placement groove (14) on its outer periphery. Not less than one anti-pull-out mechanism (2), several anti-pull-out mechanisms (2) correspond one-to-one with several annular positioning grooves (14), the anti-pull-out mechanism (2) includes several fixed plates (21) distributed in a rotating array, one end of the fixed plate (21) is rotatably installed inside the annular positioning groove (14), and the fixed plate (21) can be completely rotated into the inside of the annular positioning groove (14); A drive mechanism (3) is installed on the outer pile body (11), and the drive mechanism (3) is used to drive a plurality of fixed plates (21) to rotate synchronously; A fixing mechanism (4) is installed on the inner pile body (12), the fixing mechanism (4) being used to fix the inner pile body (12) to the outer pile body (11).

2. The anti-loosening power grounding stake according to claim 1, characterized in that: The drive mechanism (3) includes several control rods (31), control gears (32) that are the same number as the control rods (31) and correspond one-to-one, and a drive gear (33). The number of control rods (31) is the same as the number of fixing plates (21) in the same anti-pull-out mechanism (2) and corresponds one-to-one. The top of the outer pile body (11) has a rotating groove (111) that communicates with the annular mounting groove (14) along the length direction. The control rods (31) are rotatably installed inside the rotating groove (111). One end of the fixing plate (21) is fixedly sleeved on the corresponding... On the corresponding control lever (31), the control gear (32) is fixedly sleeved on the top of the corresponding control lever (31). The drive gear (33) is rotatably installed on the top of the outer pile body (11) and is coaxial with the outer pile body (11). The middle part of the drive gear (33) has a through groove (34) with a diameter larger than that of the inner pile body (12). Several control gears (32) mesh with the drive gear (33). During the process of the inner pile body (12) being inserted into the mounting groove (13), the drive gear (33) can be driven to rotate.

3. The anti-loosening power grounding stake according to claim 2, characterized in that: A sliding block (341) is fixed on the inner wall of the groove (34), and an arc-shaped sliding groove (121) is constructed on the outer periphery of the inner pile body (12). The two ends of the sliding groove (121) pass through the two ends of the inner pile body (12), and the sliding block (341) is slidably installed inside the sliding groove (121).

4. The anti-loosening power grounding stake according to claim 3, characterized in that: One end of the sliding block (341) is connected to a ball (342), and the ball (342) is fixed on the inner wall of the sliding groove (121).

5. The anti-loosening power grounding stake according to claim 4, characterized in that: A guide block (131) is fixed on the inner wall of the mounting groove (13), and a guide groove (122) is constructed on the outer periphery of the inner pile body (12) along the length direction. The guide groove (122) passes through both ends of the inner pile body (12), and the guide block (131) slides inside the guide groove (122).

6. The anti-loosening power grounding stake according to claim 5, characterized in that: A protective shell (15) is fixedly fitted on the outer periphery of the top of the outer pile body (11). Several control gears (32) and drive gears (33) are located inside the protective shell (15). The protective shell (15) has a through hole with a diameter larger than that of the inner pile body (12) in the middle. The fixing mechanism (4) includes a fixing plate (41) fixed to the top of the inner pile body (12). The fixing plate (41) is connected to the protective shell (15) by bolts (42). When the fixing plate (41) is placed on the top of the protective shell (15), the bottom end of the inner pile body (12) contacts the inner wall of the mounting groove (13), and several fixing plates (21) in the same anti-pull-out mechanism (2) are in an open state.

7. The anti-loosening power grounding stake according to claim 6, characterized in that: The top of the protective shell (15) is constructed with an annular docking groove (151), and the bottom of the fixing plate (41) is fixed with a sealing rubber strip (43), which is movably engaged inside the docking groove (151).

8. A grounding stake for preventing loosening according to claim 6, characterized in that: The protective shell (15) is fixedly fitted with a ground plate (16). The ground plate (16) has several evenly distributed mounting holes (161) through it. Ground nails (162) are movably inserted into the mounting holes (161). A hammer head (163) is fixed to the top of the ground nail (162). A prying groove is constructed on the outer periphery of the hammer head (163).

9. The anti-loosening power grounding stake according to claim 1, characterized in that: The outer periphery of the fixing piece (21) has a knife-edge shape.

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