A grounding device that is easy to install

Abstract

The present invention discloses a grounding device that is easy to install, including an external grounding tube, an internal grounding column and an external cone, wherein the external cone is installed at the bottom of the external grounding tube, and the external cone has a first station and a second station; the internal grounding column is installed inside the external grounding tube, and when the external cone is in the first station, the internal grounding column is inside the external grounding tube, and when the external cone is in the second station, the internal grounding column can slide out of the external grounding tube; when the external cone is in the first station, an external force is applied to the external grounding tube to move the external grounding tube downward, and when the external cone is in the second station, an external force is applied to the internal grounding column to move the internal grounding column downward, and when the external cone is adjusted from the first station to the second station, the external grounding tube is pulled upward. In the present invention, the proposed grounding device that is easy to install has a simple structure, reduces the risk of tilting of the grounding device to a certain extent, and corrects the external grounding tube with a smaller tilt angle.

Description

Technical Field

[0001] The invention relates to the technical field of conductive connection devices, and in particular to a grounding device that is easy to install. Background Art

[0002] A grounding device is a device that establishes an electrical connection between electrical equipment or other objects and the ground. Its main function is to provide reliable grounding protection for people who use the electrical equipment to prevent electric current from passing through the human body and causing harm to the human body.

[0003] The grounding device includes a grounding post. Generally, the grounding post is an integrated structure. When the grounding post is hammered down, the stress points at the bottom and top of the grounding post remain unchanged, causing the grounding post to be easily deformed and tilted. The tilted grounding post affects the grounding effect to a certain extent. In addition to pulling out and reinstalling the tilted grounding post, there is currently no other way to correct the tilted grounding post. Summary of the invention

[0004] In order to solve the technical problems existing in the background technology, the present invention provides a grounding device which is easy to install.

[0005] The present invention provides a grounding device that is easy to install, comprising an external grounding tube, an internal grounding column and an external cone, wherein the external cone is installed at the bottom of the external grounding tube, and the external cone has a first position and a second position, when the external cone is in the first position, the axis of the external cone coincides with the axis of the external grounding tube, and when the external cone is in the second position, the axis of the external cone intersects with the axis of the external grounding tube;

[0006] The inner grounding column is installed inside the outer grounding tube. When the outer cone is in a first position, the inner grounding column is inside the outer grounding tube. When the outer cone is in a second position, the inner grounding column can slide out of the outer grounding tube.

[0007] When the outer cone is in the first position, an external force is applied to the outer grounding tube to move the outer grounding tube downward; when the outer cone is in the second position, an external force is applied to the inner grounding column to move the inner grounding column downward; when the outer cone is adjusted from the first position to the second position, the outer grounding tube is pulled upward.

[0008] The invention relates to a grounding method for a grounding device, wherein an external force is first applied to an external grounding tube to make an outer cone contact with the ground, and the outer grounding tube and an inner grounding column are used to move the outer grounding tube downward until the outer grounding tube is completely moved downward into the ground, and then the outer grounding tube is pulled upward to make the bottom of the outer cone separate from the ground while the outer grounding tube is not completely separated from the ground, and then the outer cone is placed in a second position under the application of external force, and then the inner grounding column is moved downward and driven into the soil by external force and tools until the inner grounding column moves to the bottom of the outer grounding tube. The whole process is divided into applying an external force to the outer grounding tube to move the outer grounding tube underground, and then applying a downward force to the inner grounding column to move the inner grounding column underground relative to the outer grounding tube. Since the force positions of the whole grounding device are different during the whole process, the risk of tilting of the grounding device is reduced to a certain extent, and since the inner grounding column is sleeved inside the outer grounding tube, and when the inner grounding column is subjected to a vertical downward force and moves downward, the inner grounding column moves downward relative to the outer grounding tube, and the outer grounding tube with a smaller tilt angle is corrected to a certain extent.

[0009] Preferably, the external grounding tube has a connected accommodating hole and a limiting hole, the limiting hole is located below the accommodating hole and the aperture of the limiting hole is smaller than the aperture of the accommodating hole, a step surface is formed between the limiting hole and the accommodating hole, the internal grounding column includes an upper limit portion and a lower sliding portion, the lower sliding portion matches the limiting hole and slides in the limiting hole, and the upper limit portion contacts the step surface to limit the displacement of the internal grounding column relative to the external grounding tube.

[0010] Preferably, a limiting groove is opened on the stepped surface, and the bottom of the upper limit portion has a limiting protrusion. The internal grounding column is rotated to make the limiting protrusion match the limiting groove. The matching of the limiting protrusion and the limiting groove prevents the internal grounding column from rotating relative to the external grounding tube.

[0011] Preferably, it further comprises an auxiliary column detachably mounted on the top of the inner grounding column, wherein the auxiliary column matches the accommodating hole and can move downward in the accommodating hole.

[0012] Preferably, an adjustment hole is opened on the external ground cylinder. When the outer cone is in the first position, the adjustment hole is opposite to the end face of the outer cone. An adjustment rod can be arranged in the adjustment hole to push the outer cone to move from the first position to the second position.

[0013] In order to facilitate the downward movement of the inner grounding column relative to the outer grounding tube, as a further optimized solution of the present invention, the bottom of the inner grounding column has a conical portion.

[0014] Preferably, the cone angle of the outer cone portion is greater than the cone angle of the cone portion of the inner grounding post.

[0015] As a method of the present invention for realizing the switching between the first working position and the second working position of the outer cone, the outer cone is installed at the bottom of the outer ground cylinder in a transverse rotation.

[0016] Based on the above technical solution, preferably, an auxiliary tension rope is provided between the outer cone and the outer ground cylinder. When the outer cone is in the first working position, the auxiliary tension rope between the outer ground cylinder and the outer cone is in a tensioned state to ensure that the axis of the outer cone is coaxial with the axis of the outer ground cylinder. When the outer cone is required to be in the second working position, the auxiliary tension rope is in a relaxed state to facilitate the rotation of the outer cone relative to the outer ground cylinder.

[0017] As another way of realizing the switching between the first workstation and the second workstation by the outer cone of the present invention, at least two groups of pull ropes are provided between the outer cone and the external ground cylinder, and at least two groups of pull ropes are circumferentially distributed on the outer cone. When the outer cone is in the first workstation, at least two groups of pull ropes are in a tensioned state, and when the outer cone is in the second workstation, at least one group of pull ropes is in a relaxed state and at least one group of pull ropes is in a tensioned state.

[0018] In order to reduce the force on the inner grounding column when the outer grounding tube moves downward, as a further optimization scheme of the present invention, a limit plate is detachably installed on the top of the inner grounding column, and the limit plate has a portion that contacts the end face of the limit tube.

[0019] On the basis of the above technical solution, in order to drive the external grounding tube to move downward, it is preferred that an impact piece is detachably installed on the external grounding tube, and the impact piece has a portion that abuts against the end face of the external grounding tube, a connecting through hole is opened on the limiting plate, and an impact column is provided at the bottom of the impact piece, and the impact column passes through the connecting through hole and abuts against the external grounding tube.

[0020] In the present invention, the proposed grounding device is easy to install and has a simple structure. During the process of hitting the grounding device into the ground, the force positions of the entire grounding device are different, which reduces the risk of tilting of the grounding device to a certain extent. In addition, since the inner grounding column is sleeved inside the outer grounding tube, and when the inner grounding column is moved downward by the vertical downward force, the inner grounding column moves downward relative to the outer grounding tube, which corrects the outer grounding tube with a smaller tilt angle to a certain extent.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 A cross-sectional view of

[0024] Figure 3 For the present invention Figure 1 Schematic diagram of the structure when the inner and outer cones are in the second working position;

[0025] Figure 4 This is a structural diagram of Embodiment 2 of the present invention;

[0026] In the figure: 1. External grounding tube; 10. Accommodating hole; 11. Limiting hole; 12. Limiting groove; 13. Adjusting through hole; 15. Pulling through hole; 16. Extension part; 2. Internal grounding column; 20. Upper positioning part; 21. Lower sliding part; 22. Conical part; 3. External cone; 4. Limiting protrusion; 5. Limiting plate; 6. Impact member; 60. Impact column; 7. Auxiliary column; 8. Adjusting rod; 9. Auxiliary tensioning rope; 14. Pulling rope. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] Embodiment 1:

[0029] like Figure 1-Figure 3 A grounding device that is easy to install is shown, comprising an external grounding tube 1, an internal grounding column 2 and an external cone 3, wherein the external cone 3 is installed at the bottom of the external grounding tube 1, and the external cone 3 has a first position and a second position, and when the external cone 3 is in the first position, the axis of the external cone 3 coincides with the axis of the external grounding tube 1, and when the external cone 3 is in the second position, the axis of the external cone 3 intersects with the axis of the external grounding tube 1;

[0030] The inner grounding column 2 is installed inside the outer grounding tube 1. When the outer cone 3 is in the first position, the inner grounding column 2 is inside the outer grounding tube 1. When the outer cone 3 is in the second position, the lower part of the inner grounding column 2 can slide out of the outer grounding tube 1.

[0031] Specifically, in this embodiment, the outer cone 3 is laterally rotatably mounted at the bottom of the external ground cylinder 1, and the outer cone 3 is rotated to move from the first position to the second position;

[0032] When the outer cone 3 is in the first position, an external force is applied to the outer grounding tube 1 to move the outer grounding tube 1 downward; when the outer cone 3 is in the second position, an external force is applied to the inner grounding column 2 to move the inner grounding column 2 downward; when the outer cone 3 is adjusted from the first position to the second position, the outer grounding tube 1 is pulled upward. Preferably, the outer grounding tube 1 is pulled upward and a downward force is applied to the inner grounding column 2 at the same time so that the axis of the outer cone 3 intersects with the axis of the outer grounding tube 1; then the inner grounding column 2 is moved downward by an external force; at the initial stage of the downward movement of the inner grounding column 2, the inner grounding column 2 is pressed downward against the outer cone 3 and rotated until the outer cone 3 contacts the side of the inner grounding column 2; in this process, the outer cone 3 is pressed against the side of the hole dug by the outer cone 3; then the downward force is continued to be applied to the inner grounding column 2 to move the inner grounding column 2 downward into the ground.

[0033] The invention discloses a grounding method for a grounding device, wherein an external force is first applied to an external grounding tube 1 to make an outer cone 3 contact with the ground, and the outer grounding tube 1 and an inner grounding column 2 are moved upward until the outer grounding tube 1 is completely moved downward to the ground, and then the outer grounding tube 1 is pulled upward to make the bottom of the outer cone 3 separate from the ground and the outer grounding tube 1 is not completely separated from the ground, and then the outer cone 3 is placed in a second position under the application of external force, and then the inner grounding column 2 is moved downward and driven into the soil by external force and tools until the inner grounding column 2 moves to the bottom of the outer grounding tube 1. The whole process is divided into applying an external force to the outer grounding tube 1 to move the outer grounding tube 1 underground, and then applying a downward force to the inner grounding column 2 to move the inner grounding column 2 underground relative to the outer grounding tube 1. Since the force positions of the whole grounding device are different during the whole process, the risk of tilting of the grounding device is reduced to a certain extent, and since the inner grounding column 2 is sleeved inside the outer grounding tube 1, and when the inner grounding column 2 is subjected to a vertical downward force and moves downward, the inner grounding column 2 moves downward relative to the outer grounding tube 1, and the outer grounding tube 1 with a smaller tilt angle is corrected to a certain extent.

[0034] Preferably, the external grounding tube 1 has a connected accommodating hole 10 and a limiting hole 11, the limiting hole 11 is located below the accommodating hole 10 and the aperture of the limiting hole 11 is smaller than the aperture of the accommodating hole 10, a stepped surface is formed between the limiting hole 11 and the accommodating hole 10, the internal grounding column 2 includes an upper positioning portion 20 and a lower sliding portion 21, the lower sliding portion 21 matches the limiting hole 11 and slides in the limiting hole 11, the upper positioning portion 20 contacts the stepped surface, thereby realizing the limitation of the internal grounding column 2 during movement and limiting the downward displacement of the internal grounding column 2, thereby preventing the internal grounding column 2 from detaching from the external grounding tube 1.

[0035] Preferably, a limiting groove 12 is opened on the stepped surface, and a limiting protrusion 4 is provided at the bottom of the upper limit portion 20. The inner grounding column 2 is rotated to make the limiting protrusion 4 match the limiting groove 12. The matching of the limiting protrusion 4 and the limiting groove 12 prevents the inner grounding column 2 from rotating relative to the outer grounding tube 1.

[0036] In order to reduce the force on the inner grounding column 2 when the outer grounding tube 1 moves downward, preferably, a limit plate 5 is detachably installed on the top of the inner grounding column 2, and the limit plate 5 has a portion in contact with the end surface of the limit tube. Specifically, the limit plate 5 is connected to the inner grounding column 2 by a thread. When the outer grounding tube 1 moves downward under external force, the limit plate 5 is installed on the inner grounding column 2 to prevent the inner grounding column 2 from moving downward relative to the outer grounding tube 1, thereby reducing the force on the inner grounding column 2 and ensuring that the inner grounding column 2 is in a vertical state.

[0037] In order to drive the external grounding tube 1 to move downward, preferably, an impact piece 6 is detachably installed on the external grounding tube 1, and the impact piece 6 has a portion that contacts with the end face of the external grounding tube 1. A connecting through hole is opened on the limiting plate 5, and an impact column 60 is provided at the bottom of the impact piece 6. The impact column 60 passes through the connecting through hole and contacts with the external grounding tube 1. It should be noted that a hole groove matching the impact drill is provided on the top of the mounting.

[0038] Preferably, it also includes an auxiliary column 7 that can be detachably installed on the top of the inner grounding column 2. The auxiliary column 7 matches the accommodating hole 10 and can move downward in the accommodating hole 10. It should be noted that the auxiliary column 7 is connected to the inner grounding column 2 through a threaded connection. When the inner grounding column 2 moves to the bottom of the external grounding tube 1, the auxiliary column 7 matches the accommodating hole 10. It also includes a locking piece installed between the auxiliary column 7 and the external grounding tube 1 to prevent the inner grounding column from moving upward relative to the external grounding tube 1.

[0039] Preferably, an extension portion 15 connected to a grounding wire is disposed outside the external grounding tube 1 .

[0040] Preferably, an adjustment hole 13 is opened on the external grounding tube 1. When the outer cone 3 is in the first position, the adjustment hole 13 is opposite to the end face of the outer cone 3. An adjustment rod 8 can be arranged in the adjustment hole 13 to push the outer cone 3 to move from the first position to the second position. When the external grounding tube 1 moves downward to the underground, the impact piece 6 is removed, and then the limit plate 5 is removed, the auxiliary column 7 is installed, and then the external grounding tube 1 is pulled upward to push the outer cone 3 to rotate by inserting the adjustment rod 8 into the adjustment hole 13, and then the internal grounding column 2 is driven to move downward under the action of external force.

[0041] In order to facilitate the downward movement of the inner grounding column 2 relative to the outer grounding tube 1, as a further optimized solution of the present invention, the bottom of the inner grounding column 2 has a conical portion 22, which facilitates the downward movement of the inner grounding column 2 under the action of an external force. When the outer cone 3 is in the first position, the conical portion 22 is located in the limiting hole 11 and does not contact the outer cone 3, further reducing the force on the inner grounding column 2 during the downward movement of the outer grounding tube 1.

[0042] In order to better achieve the impact of the grounding device on the ground, preferably, the cone angle of the outer cone 3 is greater than the cone angle of the cone 22 of the inner grounding column 2 .

[0043] Preferably, an auxiliary tension rope 9 is provided between the outer cone 3 and the external grounding tube 1. When the outer cone 3 is in the first position, the auxiliary tension rope 9 between the external grounding tube 1 and the outer cone 3 is in a tensioned state to ensure that the axis of the outer cone 3 is coaxial with the axis of the external grounding tube 1. When the outer cone 3 is required to be in the second position, the auxiliary tension rope 9 is in a relaxed state to facilitate the rotation of the outer cone 3 relative to the external grounding tube 1. It should be noted that the auxiliary tension rope 9 can be a steel wire rope, and one or more auxiliary tension ropes 9 can be provided. An auxiliary through hole is provided on the external grounding tube 1, and the auxiliary tension rope 9 passes through the auxiliary through hole, and the auxiliary tension rope 9 is conductive. When the outer cone 3 is in the second position, the auxiliary tension rope 9 has a portion located outside the external grounding tube 1, and the auxiliary tension rope 9 is connected to the external grounding wire to further increase the grounding effect. In this embodiment, one end of the auxiliary tension rope 9 is fixed on the outer cone 3, and the other end of the auxiliary tension rope 9 is fixed on the impact member 6. Embodiment 2:

[0044] like Figure 4 As shown, the difference between this embodiment and the above-mentioned embodiment lies in that three groups of pulling ropes 14 are arranged between the outer cone 3 and the external ground cylinder 1, one end of each group of pulling ropes 14 is fixed on the outer cone 3, and the other end of the pulling rope 14 is detachably mounted on the external ground cylinder 1. In this embodiment, the other end of the pulling rope 14 is detachably mounted on the impact member 6, and a pulling through hole 15 is opened on the external ground cylinder 1. The other end of the pulling rope 14 passes through the pulling through hole 15 and is detachably mounted on the impact member 6. The three groups of pulling ropes 14 are circumferentially distributed on the outer cone 3. When the outer cone 3 is in the first working position, at least two groups of pulling ropes 14 are in a tensioned state. When the outer cone 3 is in the second working position, the two groups of pulling ropes 14 are in a relaxed state, and one group of pulling ropes 14 is in a tensioned state to tighten the outer cone 3, and then the outer cone 3 is pushed to rotate by adjusting the push rod. Preferably, the adjusting push rod is located between the two relaxed pulling ropes 14. Preferably, when the outer cone 3 is in the second position, the pulling rope 14 has a portion located outside the external grounding tube 1, and the pulling rope 14 is conductive, and the pulling rope 14 is connected to an external grounding wire.

[0045] It should be noted that the contact position between the pulling rope 14 and the outer cone 3 is lower than the end surface of the outer cone 3 to avoid the pulling rope 14 affecting the surface contact between the end surface of the outer cone 3 and the lower end surface of the outer sleeve.

[0046] The advantage of this embodiment over the first embodiment is that the rotation position of the outer cone 3 relative to the external ground tube 1 is not unique and can flexibly adapt to underground conditions.

[0047] It should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrated; it can be mechanically connected, electrically connected, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grounding device that is easy to install, characterized in that: The invention comprises an external grounding tube (1), an internal grounding column (2) and an external cone (3), wherein the external cone (3) is installed at the bottom of the external grounding tube (1), and the external cone (3) has a first position and a second position. When the external cone (3) is in the first position, the axis of the external cone (3) coincides with the axis of the external grounding tube (1); when the external cone (3) is in the second position, the axis of the external cone (3) intersects with the axis of the external grounding tube (1); The inner grounding column (2) is installed inside the outer grounding tube (1); when the outer cone (3) is in a first position, the inner grounding column (2) is inside the outer grounding tube (1); when the outer cone (3) is in a second position, the inner grounding column (2) can slide out of the outer grounding tube (1); When the outer cone (3) is in the first position, an external force is applied to the outer grounding tube (1) so that the outer grounding tube (1) moves downward; when the outer cone (3) is in the second position, an external force is applied to the inner grounding column (2) so that the inner grounding column (2) moves downward; when the outer cone (3) is adjusted from the first position to the second position, the outer grounding tube (1) is pulled upward.

2. The easy-to-install grounding device according to claim 1, characterized in that: The external grounding tube (1) has a communicating accommodation hole (10) and a limiting hole (11), the limiting hole (11) is located below the accommodation hole (10) and a stepped surface is formed between the limiting hole (11) and the accommodation hole (10), the internal grounding column (2) comprises an upper limit portion (20) and a lower sliding portion (21), the lower sliding portion (21) matches the limiting hole (11) and slides in the limiting hole (11), and the upper limit portion (20) contacts the stepped surface to limit the displacement of the internal grounding column (2) relative to the external grounding tube (1).

3. The easy-to-install grounding device according to claim 2, characterized in that: A limiting groove (12) is formed on the stepped surface, a limiting protrusion (4) is provided at the bottom of the upper limit portion (20), and the inner grounding column (2) is rotated so that the limiting protrusion (4) matches the limiting groove (12).

4. The easy-to-install grounding device according to claim 2, characterized in that: It also includes an auxiliary column (7) which is detachably mounted on the top of the inner grounding column (2); the auxiliary column (7) matches the receiving hole (10) and can move downward in the receiving hole (10).

5. The easy-to-install grounding device according to claim 1, characterized in that: An adjustment through hole (13) is provided on the external ground cylinder (1). When the outer cone (3) is in the first working position, the adjustment through hole (13) is opposite to the end surface of the outer cone (3). An adjustment rod (8) can be arranged in the adjustment through hole (13) to push the outer cone (3) to move from the first working position to the second working position.

6. The easy-to-install grounding device according to claim 1, characterized in that: The bottom of the inner grounding column (2) has a conical portion (22).

7. The easy-to-install grounding device according to claim 6, characterized in that: The cone angle of the outer cone (3) is greater than the cone angle of the cone (22).

8. The easy-to-install grounding device according to any one of claims 1 to 7, characterized in that: The outer cone (3) is installed in a transversely rotatable manner on the bottom of the outer ground cylinder (1).

9. The easy-to-install grounding device according to claim 8, characterized in that: An auxiliary tensioning rope (9) is provided between the outer cone (3) and the external grounding tube (1). When the outer cone (3) is in the first working position, the auxiliary tensioning rope (9) between the external grounding tube (1) and the outer cone (3) is in a tensioned state so that the axis of the outer cone (3) is coaxial with the axis of the external grounding tube (1).

10. The easy-to-install grounding device according to any one of claims 1 to 7, characterized in that: At least two groups of pulling ropes (14) are provided between the outer cone (3) and the outer ground tube (1), and the at least two groups of pulling ropes (14) are circumferentially distributed on the outer cone (3). When the outer cone (3) is in a first working position, at least two groups of pulling ropes (14) are in a tensioned state; when the outer cone (3) is in a second working position, at least one group of pulling ropes (14) is in a relaxed state and at least one group of pulling ropes (14) is in a tensioned state.

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