Installation device of auxiliary grounding electrode

Abstract

The utility model provides an installation device of an auxiliary grounding electrode, belonging to the technical field of electric power engineering, the installation device of the auxiliary grounding electrode comprises a support and an electric drill which form a cube, the support is used for being erected on the ground, the support comprises a bottom support and a top support which are in the shape of a circular ring or a square frame, a plurality of vertical supports are arranged between the bottom support and the top support, a stabilizing device used for keeping a drill bit perpendicular is erected between the vertical supports, the stabilizing device comprises a horizontally-arranged supporting plate, and the supporting plate is connected with the vertical supports. The supporting plate is connected with the multiple vertical supports in a fixed mode or a lifting sliding mode. The technical problem that when an auxiliary grounding electrode is installed in an existing device, an electric drill for drilling is prone to being affected by soil properties, soil humidity, stone blocks and other obstacles in the using process, and consequently a drill bit deviates from a preset track is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power engineering, and in particular relates to an installation device for an auxiliary grounding electrode. Background Art

[0002] In the construction of power systems, communication systems and other projects, the installation of grounding devices is an important part of ensuring the safe operation of the system. The installation quality of the grounding device is directly related to the safety and stability of the entire system. Therefore, it is very important to ensure the accuracy and stability of the grounding device installation. Traditional grounding electrode installation methods mostly use manual knocking or simple mechanical devices for operation. This method is not only inefficient, but also cannot guarantee the verticality and fixed depth of the grounding electrode, especially on hard soil or stone ground. The construction is even more difficult.

[0003] With the development of technology, electric tools, such as electric drills, have been widely used in the installation process of grounding electrodes to improve construction efficiency and installation quality. However, electric drills are easily affected by obstacles such as soil properties, soil moisture, and stones during use, causing the drill bit to deviate from the predetermined trajectory, thereby affecting the verticality and installation depth of the grounding electrode. In addition, the electric drill also requires the operator to perform stable control during use, which places high demands on the operator's physical strength and operating skills, increasing the difficulty of construction. Utility Model Content

[0004] In view of this, the utility model provides an installation device for an auxiliary grounding electrode, which can solve the technical problem that when installing the auxiliary grounding electrode in the existing device, the electric drill used for drilling is easily affected by obstacles such as soil properties, soil moisture, stones, etc. during use, causing the drill bit to deviate from the predetermined trajectory.

[0005] The utility model is achieved in this way:

[0006] The utility model provides an installation device for an auxiliary grounding electrode, which includes a support and an electric drill that form a cube. The support is used to be erected on the ground. The support includes a bottom support in a circular ring or square frame shape and a top support. A plurality of vertical supports are arranged between the bottom support and the top support. A stabilizing device for keeping the drill bit vertical is arranged between the vertical supports. The stabilizing device includes a horizontally arranged support plate, and the support plate is respectively connected to the plurality of vertical supports.

[0007] Through the above arrangement, the direction of the drill bit of the electric drill is fixed, and the direction of the drill bit is prevented from deviating from the predetermined trajectory, so that the subsequent grounding electrode can be vertically inserted into the ground.

[0008] On the basis of the above technical solution, the installation device of an auxiliary grounding electrode of the utility model can also be improved as follows:

[0009] Wherein, the support plate is respectively connected to the plurality of vertical supports by fixed connection or lifting sliding connection.

[0010] The beneficial effects of adopting the above-mentioned improvement scheme are:

[0011] Further, the connection is a sliding connection; the stabilizing device comprises:

[0012] The vertical bracket is an upright guide rail, and a slider is installed on each guide rail respectively; it is used to abut against the support plate of the electric drill and is fixedly connected to a plurality of the sliders respectively;

[0013] The center of the support plate is used for the drill bit of the electric drill to pass through, and has a tapered hole that matches the three-claw tapered surface of the electric drill.

[0014] The beneficial effects of adopting the above-mentioned improvement scheme are:

[0015] Further, the connection is a fixed connection; the stabilizing device comprises:

[0016] The vertical support is an upper rod and a lower rod that are erected and set together, and the upper rod is a telescopic rod;

[0017] The support plate is fixedly connected to each lower rod. The center of the support plate has a through hole for positioning a fixing member. The fixing member is a counterweight member composed of two cones with cone tops butted against each other.

[0018] The beneficial effects of adopting the above-mentioned improvement scheme are:

[0019] Furthermore, the shape of the fixing member is: 2 The hyperbola with / a2-y2 / b2=1 is rotated 180° around the y-axis, the narrowest outer diameter of the hyperbola of the fixing member matches the inner diameter of the through hole, the fixing member is clamped in the through hole, and the widest part of the hyperbola of the fixing member is not less than the focal length of the hyperbola.

[0020] The beneficial effect of adopting the above-mentioned improved scheme is as follows: a fixing piece formed by rotating a hyperbola is adopted, and the outer diameter of the blocking piece is set between the dimensions of the widest part and the narrowest part of the hyperbola of the fixing piece. When the user places the drill bit into the fixing piece, due to the blocking of the blocking piece and the circular shape of the blocking piece, the cross section of the blocking piece and the fixing piece become concentric circles, thereby ensuring that the drill bit is located on the central axis of the fixing piece, and also avoiding the situation where the fixing piece cannot be vertical. The reason why the fixture is formed by the rotation of a hyperbola is that when the device drills the ground at the position of the grounding electrode, the drill bit will receive an instantaneous lateral force due to the squeezing of the soil. This lateral force acts on the inner wall of the fixture through the blocking piece. Due to the hyperbolic shape of the inner wall of the fixture, a component force will be generated upward along the inner wall of the fixture and outward perpendicular to the inner wall, and the outward component force perpendicular to the inner wall will point to the focus of the hyperbola. Since the fixture is in the process of rotation, all the component forces point to the focus of the hyperbola, which can make the distribution of the component forces more uniform when the fixture is subjected to lateral force, thereby reducing the lateral deviation of the electric drill and maintaining the stability and accuracy of the electric drill during the drilling process. Since all the component forces point to the focus of the hyperbola, this force distribution helps to concentrate the force to counteract the lateral deviation force caused by uneven soil pressure, different soil hardness or encountering obstacles such as stones, ensuring that the electric drill can enter the soil along the predetermined straight line direction and improve the accuracy of grounding electrode installation.

[0021] In addition, the hyperbolic shape of the fixture can also provide better guidance when the electric drill is in operation, because the shape of the hyperbola can provide different degrees of support for the electric drill at different cross-sections. When the electric drill is subjected to a small lateral force, the electric drill can maintain a relatively stable position because the narrowest part of the hyperbola matches the outer diameter of the electric drill block; when the electric drill is subjected to a large lateral force, the design of the wider part of the hyperbola can provide a larger contact area and support force, thereby effectively resisting lateral deviation and ensuring that the drilling action of the electric drill is smoother and more stable.

[0022] In short, the specific function of setting the hyperbolic shape of the fixing is to provide effective guidance and support when the electric drill is drilling, reduce the lateral deviation caused by the unevenness of the ground, and thus improve the efficiency of the operation and the accuracy of the installation. This design is of great significance for the installation of grounding electrodes under complex geological conditions, and can ensure the reliability and safety of the grounding system.

[0023] Furthermore, the outer diameter of the connection between the handle and the drill bit of the electric drill is between the widest and narrowest parts of the hyperbola of the fixing member.

[0024] The beneficial effect of adopting the above-mentioned improvement scheme is: it avoids the contact between the drill bit and the inner wall of the fixing part, thereby preventing the inner wall of the fixing part from being worn.

[0025] Furthermore, the narrowest part of the hyperbola of the fixing member is larger than 1.5 times the projected outer diameter of the drill bit.

[0026] The beneficial effect of adopting the above-mentioned improvement scheme is: it avoids the contact between the drill bit and the inner wall of the fixing part, thereby preventing the inner wall of the fixing part from being worn.

[0027] Furthermore, the spacing between the threads of the drill bit increases from the root to the end.

[0028] The beneficial effect of adopting the above-mentioned improvement scheme is as follows: when the drill bit spirals into the frozen soil, since the distance between the threads decreases from the tip to the rear end, it can advance faster and cut the frozen soil into pieces, making the soil in contact with the drill bit loose and absorbing more water, which will increase the conductivity of the frozen soil and help achieve better grounding conduction.

[0029] Furthermore, a circular blocking piece is provided on the handle near the connection between the handle and the drill bit. The blocking piece is made of rubber and is used to prevent the drill bit from colliding with the fixing member.

[0030] The beneficial effect of adopting the above-mentioned improvement scheme is: it avoids the contact between the drill bit and the inner wall of the fixing part, thereby preventing the inner wall of the fixing part from being worn.

[0031] The auxiliary grounding electrode installation device of the utility model adopts a fixing piece formed by a specific hyperbolic rotation, which effectively solves the problems of deviation, inaccurate installation and low efficiency in the installation process of the grounding electrode by traditional manual or simple mechanical devices. Specifically, compared with the prior art, the beneficial effects of the auxiliary grounding electrode installation device provided by the utility model are:

[0032] First, a bracket is provided, and a support plate that can slide up and down is provided in the bracket, and the support plate is used to fix the electric drill to prevent the drill bit from deviating from the predetermined direction;

[0033] Second, the hyperbolic fixing can generate a component force that converges toward the focus of the hyperbola when the electric drill is subjected to a lateral force, thereby significantly improving the stability of the electric drill during the drilling process. This distribution of component forces helps to resist the lateral offset force caused by uneven soil pressure, different soil hardness, or obstacles such as stones, ensuring that the electric drill enters the soil in a predetermined straight line direction, improving the accuracy of grounding electrode installation, and further preventing the drill bit from deviating from the predetermined direction;

[0034] Third, the hyperbolic shape of the fixing provides different degrees of support for the electric drill at different cross-sections. When the electric drill is subjected to a small lateral force, the electric drill maintains a stable position; when the electric drill is subjected to a large lateral force, the design of the wider part of the hyperbola provides a larger contact area and support force, effectively resisting lateral deviation, keeping the drilling action smooth and stable; and further preventing the drill bit from deviating from the predetermined direction;

[0035] Third, the device of the utility model is simple in design and moderate in size, which is convenient for rapid deployment and use on site. Compared with the complex devices in the prior art, the device of the utility model greatly reduces the difficulty of operation and the physical burden, and improves the construction efficiency.

[0036] In addition, the device of the utility model also takes into account the installation requirements of the grounding electrode in different soil types, and through the design of the drill bit thread pitch, the thread pitch can also be conventionally equidistant, which can also realize the use of the utility model. It achieves faster advancement in frozen soil and improves the looseness of the soil, thereby improving the grounding effect.

[0037] In summary, the auxiliary grounding electrode installation device provided by the utility model can solve the technical problem that when installing the auxiliary grounding electrode in the existing device, the electric drill used for drilling is easily affected by obstacles such as soil properties, soil moisture, stones, etc. during use, causing the drill bit to deviate from the predetermined trajectory. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 A schematic diagram of the structure of an embodiment of a square bracket provided by the present invention;

[0040] Figure 2 A schematic structural diagram of an embodiment of a circular bracket provided by the present invention;

[0041] Figure 3 A schematic diagram of the structure of an embodiment of a device with an additional fixing member is provided for the present invention;

[0042] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0043] 1. Bracket; 10. Vertical bracket; 101. Upper rod; 102. Lower rod; 11. Bottom bracket; 12. Top bracket; 13. Support plate; 131. Through hole; 14. Fixing piece; 20. Slider; 30. Connecting piece 2, electric drill; 21. Handle; 22. Blocking piece; 23. Drill bit. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.

[0045] like Figure 1 , Figure 2 As shown, an embodiment of an auxiliary grounding electrode installation device provided by the utility model is shown. In this embodiment, it includes a bracket 1 and an electric drill 2 that form a cube. The bracket 1 is used to be erected on the ground. The bracket 1 includes a bottom bracket 11 in a circular ring or square frame shape and a top bracket 12. A plurality of vertical brackets 10 are arranged between the bottom bracket 11 and the top bracket 12. A stabilizing device for keeping the drill bit 23 vertical is arranged between the vertical brackets 10. The stabilizing device includes a horizontally arranged support plate 13, and the support plate 13 is respectively connected to the plurality of vertical brackets 10.

[0046] Among them, in the above technical solution, the support plate 13 is respectively connected to the plurality of vertical brackets 10 by fixed connection or lifting sliding connection.

[0047] Furthermore, in the above technical solution, the connection is a sliding connection; Figure 1 and Figure 2 As shown, the stabilizing device comprises:

[0048] The vertical bracket 10 is a vertical guide rail, and a slider 20 is installed on each guide rail respectively; it is used to abut against the support plate 13 of the electric drill 2 and is fixedly connected to multiple sliders respectively;

[0049] The center of the support plate 13 is provided with a through hole 131 for the drill bit 23 of the electric drill 2 to pass through, and has a tapered hole that matches the three-claw tapered surface of the electric drill 2 .

[0050] Furthermore, in the above technical solution, the connection is a fixed connection; Figure 3 As shown, the stabilizing device comprises:

[0051] The vertical support 10 is an upper rod 101 and a lower rod 102 that are erected and set together. The upper rod is a telescopic rod, so that when the electric drill penetrates into the soil, the upper rod can move with the drill without affecting the construction process.

[0052] The support plate 13 and each lower rod 102 are fixedly connected via a connecting piece 30. The center of the support plate 13 has a through hole 131 for positioning the fixing piece 14. The fixing piece 14 is a counterweight composed of two cones with the cone tops butted against each other.

[0053] Furthermore, in the above technical solution, the shape of the fixing member 14 is: 2 The hyperbola with / a2-y2 / b2=1 is rotated 180° around the y-axis. The narrowest outer diameter of the hyperbola of the fixing member 14 matches the inner diameter of the through hole 131. The fixing member 14 is clamped in the through hole 131. The widest part of the hyperbola of the fixing member 14 is not less than the focal length of the hyperbola.

[0054] Furthermore, in the above technical solution, the outer diameter of the connection between the handle 21 of the electric drill 2 and the drill bit 23 is between the sizes of the widest part and the narrowest part of the hyperbola of the fixing member 14 .

[0055] Furthermore, in the above technical solution, the narrowest part of the hyperbola of the fixing member 14 is larger than 1.5 times the projected outer diameter of the drill bit 23 .

[0056] Furthermore, in the above technical solution, the spacing between the threads of the drill bit 23 increases from the root to the end.

[0057] Furthermore, in the above technical solution, a circular blocking piece 22 is provided on the handle 21 near the connection between the handle 21 and the drill bit 23 . The blocking piece 22 is made of rubber and is used to prevent the drill bit 23 from colliding with the fixing member 14 .

[0058] This embodiment provides an auxiliary grounding electrode installation device, see Figure 3 , including a bracket 1 and an electric drill 2. The bracket 1 is used to be erected on the ground, including a circular or square bottom bracket 11 and a top bracket 12, and four retractable vertical brackets 10 are arranged between the bottom bracket 11 and the top bracket 12. A circular through hole is arranged in the center of the vertical bracket 10, and a fixing member 14 for fixing the direction of the electric drill 2 is arranged in the bracket 1. The fixing member 14 is determined by the equation x 2 The hyperbola with / a2-y2 / b2=1 is rotated 180° around the y axis, and the outer diameter of the narrowest part of the hyperbola of the fixing member 14 matches the inner diameter of the circular through hole, and the fixing member 14 is clamped in the circular through hole. The fixing member 14 can be a cone cylinder with two cone tops connected by threads, which can be screwed together at the through hole position, and the fixing member 14 has a through hole.

[0059] The electric drill 2 has a handle 21 and a drill bit 23 . The handle 21 is plugged into the spiral drill bit 23 . A circular blocking piece 22 is provided at the root of the handle 21 . The outer diameter of the blocking piece 22 is between the widest and narrowest parts of the hyperbola of the fixing member 14 .

[0060] In addition, the upper rod of the vertical bracket 10 is a telescopic rod, and the lower rod is a fixed rod to increase the stability of the structure. The narrowest part of the hyperbola of the fixing member 14 is greater than 1.5 times the projected outer diameter of the spiral drill bit 23 to ensure the stability and precise alignment of the electric drill during operation. The spacing between the threads of the spiral drill bit 23 increases from the root to the end to improve the efficiency of screwing the grounding electrode into the soil.

[0061] The reason why the auxiliary grounding electrode installation device of the utility model can solve the problems of the prior art lies in the unique design of the fixing part formed by the rotation of the hyperbola. The hyperbola is a hyperbolic geometric shape with openings facing each other. When it rotates around an axis, the rotating body formed presents the characteristics of the hyperbola in any cross section. This characteristic enables the fixing part to generate a component force pointing to the focus of the hyperbola when subjected to a lateral force. This force distribution characteristic helps to stabilize the position of the electric drill.

[0062] Specifically, when the electric drill is squeezed laterally by the soil during the drilling process, this lateral force is transmitted to the inner wall of the fixture through the stopper. Due to the hyperbolic shape of the inner wall of the fixture, this force will be decomposed into an upward force along the inner wall of the fixture and an outward force perpendicular to the inner wall, and the latter will point to the focus of the hyperbola. Due to the symmetry of the fixture, all outward force components will eventually point to the focus, making the force distribution more uniform, thereby reducing the lateral deviation of the electric drill and maintaining stability and accuracy during the drilling process.

[0063] In addition, the hyperbolic shape of the fixture provides different levels of support for the drill. When the drill is subjected to small lateral forces, the narrowest part of the fixture matches the outer diameter of the drill's stopper to provide a stable position; when the drill is subjected to large lateral forces, the wider part of the fixture is designed to provide a larger contact area and support force, effectively resisting lateral displacement.

[0064] Through the above design, the auxiliary grounding electrode installation device of the utility model can provide an efficient and accurate grounding electrode installation solution under various soil conditions, thereby solving the technical problems in the prior art.

[0065] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention.

Claims

1. An installation device for an auxiliary grounding electrode, characterized in that: The invention comprises a support and an electric drill which form a cube. The support is used to be set up on the ground. The support comprises a bottom support and a top support in a circular ring or square frame shape. A plurality of vertical supports are arranged between the bottom support and the top support. A stabilizing device for keeping the drill bit vertical is arranged between the vertical supports. The stabilizing device comprises a horizontally arranged support plate which is respectively connected to the plurality of vertical supports.

2. The installation device of an auxiliary grounding electrode according to claim 1, characterized in that: The support plates are respectively connected to the plurality of vertical supports by fixed connection or lifting sliding connection.

3. The installation device of an auxiliary grounding electrode according to claim 2, characterized in that: The connection is a sliding connection; the stabilizing device comprises: The vertical bracket is an upright guide rail, and a slider is installed on each guide rail respectively; it is used to abut against the support plate of the electric drill and is fixedly connected to a plurality of the sliders respectively; The center of the support plate is used for the drill bit of the electric drill to pass through, and has a tapered hole that matches the three-claw tapered surface of the electric drill.

4. The installation device of an auxiliary grounding electrode according to claim 3, characterized in that: The connection is a fixed connection; the stabilizing device comprises: The vertical support is an upper rod and a lower rod that are erected and set together, and the upper rod is a telescopic rod; The support plate is fixedly connected to each lower rod. The center of the support plate is provided with a through hole for positioning a fixing member. The fixing member is a counterweight member composed of two cones with cone tops butted against each other.

5. The installation device of an auxiliary grounding electrode according to claim 4, characterized in that: The shape of the fixing member is: 2 / a 2 -y2 / b 2 =1 is formed by rotating the hyperbola 180° around the y-axis, the narrowest outer diameter of the hyperbola of the fixing member matches the inner diameter of the through hole, the fixing member is clamped in the through hole, and the widest part of the hyperbola of the fixing member is not less than the focal length of the hyperbola.

6. The installation device of an auxiliary grounding electrode according to claim 5, characterized in that: The electric drill has a handle, and the outer diameter of the connection between the handle and the drill bit is between the dimensions of the widest and narrowest parts of the hyperbola of the fixing member.

7. The installation device of an auxiliary grounding electrode according to claim 6, characterized in that: The narrowest part of the hyperbola of the fixing member is larger than 1.5 times the projected outer diameter of the drill bit.

8. The installation device of the auxiliary grounding electrode according to claim 7, characterized in that: The spacing between the threads of the drill bit increases from the root to the end.

9. The installation device of the auxiliary grounding electrode according to claim 8, characterized in that: A circular blocking piece is also provided on the handle near the connection between the handle and the drill bit. The blocking piece is made of rubber and is used to prevent the drill bit from colliding with the fixing member.

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