Grounding rod

Abstract

The present invention relates to a ground rod which is electrically connected to the ground to function as a terminal, and more particularly, to a ground rod which can be easily and easily buried underground without knocking and which can smoothly constitute a path for a ground wire. A ground rod (100) according to the present invention comprises: a rod body (110) having a head part (111) at the upper end and a sharp part (112) at the lower end; a bent connecting part (120) which is bent into a # imgabs0 # shape, is a pipeline with two open ends so as to enable a grounding wire to pass through the inside, and is welded on the side part of the rod body in a horizontal state; and a fixing device for fixing the grounding wire passing through the inside of the bent connecting part on the bent connecting part.

Description

Technical Field

[0001] The present invention relates to a ground rod which is electrically connected to the ground to function as a terminal, and more particularly to a ground rod which can be easily and conveniently buried underground without being struck and can smoothly form a path for a ground wire. Background Art

[0002] Generally speaking, a grounding rod is a structure consisting of a steel core bundle covered with copper to allow current to flow along the steel core. The grounding wires of various electrical devices or machines are electrically connected and fixed to allow abnormal currents generated in various electrical devices or machines to flow to the ground and ground them.

[0003] Figure 1 It is a three-dimensional diagram of a common ground rod. As shown in the figure, the conventional ground rod 10 is composed of the following components: a rod body 11; a tubular connecting portion 12, which is welded to the upper end of the rod body and is squeezed when a part of the ground wire 13 is inserted into the inside.

[0004] The grounding rod 10 is formed by welding a tubular connecting portion 12 to a rod body 11 to form a whole, inserting a grounding wire 13 into the tubular connecting portion 12, and then firmly fixing the grounding wire 13 to the tubular connecting portion 12 by squeezing the tubular connecting portion 12. Then, a striking tool such as a hammer is used to strike the upper end of the rod body 11 to bury it to a certain depth underground, thereby completing the installation.

[0005] However, when burying the ground rod 10 in the ground, the rod body 11 needs to be struck with a hammer, which not only requires a lot of effort from the worker, but also causes the upper end of the rod body 11 to be crushed or bent if the strike is made incorrectly.

[0006] Meanwhile, conventional grounding rods 10 are usually arranged in a triangular shape at intervals of 2 m to effectively reduce the resistance value, and then the grounding wires 13 are installed so as to pass through the grounding rods 10 .

[0007] However, conventionally, the grounding wire 13 is passed through the grounding rod 10 by passing through the vertically installed tubular connecting portion 12 . However, in this process, the grounding wire 13 is excessively bent, so there is a problem that it is difficult to pass the grounding wire 13 through the grounding rod 10 .

[0008] Prior art literature

[0009] Patent Literature

[0010] Patent Document 0001 Korean Patent Gazette No. 10-2364894 Summary of the invention

[0011] Problem that the invention aims to solve

[0012] The present invention is proposed to solve the above problems, and its purpose is to provide a grounding rod, which can not only be easily and simply buried in the ground without knocking the rod body, but also can smoothly form a path for the grounding wire.

[0013] Means used to solve problems

[0014] To achieve the above object, the grounding rod of the present invention comprises: a rod body, a head portion is provided at the upper end, and a sharp portion is provided at the lower end; a bent connection portion is bent into a "┒" shape, and is a pipe with both ends open so that a grounding wire can pass through its interior, and is welded to the side of the rod body in a horizontal state; and a fixing device is used to fix the grounding wire passing through the interior of the bent connection portion to the bent connection portion.

[0015] In addition, a spiral protrusion may be provided on the rod body along the outer circumference in the up and down directions.

[0016] Meanwhile, the head may be formed of a polygonal shape corresponding to the shape of a socket so as to be inserted into the socket assembled on the electric tool.

[0017] In addition, the sharp portion may also be formed in the shape of an oblique cone with a right-angled triangle cross section.

[0018] On the other hand, the fixing device may be an extrusion portion provided at both ends of the curved connection portion.

[0019] In addition, the fixing device may also be screw holes provided at both ends of the curved connection portion and fastening bolts fastened to the screw holes to closely adhere to the grounding wire.

[0020] Effects of the Invention

[0021] Since the tubular curved connection part with both ends open is welded to the side of the rod body in a horizontal state to allow the grounding wire to pass through, the grounding rod of the present invention as described above is different from the past. The grounding wire is not excessively bent when passing through the grounding rod, so the grounding wire can be installed on the grounding rod very smoothly.

[0022] In addition, when the present invention provides spiral protrusions on the rod body along the up and down directions, unlike the previous grounding rods, there is no need to knock the rod body. Instead, the rod body is rotated. This not only makes it very easy and simple to bury the rod body underground, but also has the effect of preventing damage to the rod body caused by knocking the rod body.

[0023] At the same time, when the head of the rod body is composed of a polygonal shape, since the head can be inserted into the socket assembled on the power tool, the present invention has the effect of using the power tool to easily and quickly rotate the rod body to make the embedding work easier to perform. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of a conventional ground rod.

[0025] Figure 2 is a perspective view of a ground rod according to the present invention.

[0026] Figure 3 1 is a top view of the grounding rod according to the present invention in use.

[0027] Figure 4 4 is a cross-sectional view of a ground rod according to the present invention in a construction state.

[0028] Figure 5 1 is a top cross-sectional view of a ground rod according to the present invention in use.

[0029] Figure 6 It is a top cross-sectional view of another embodiment of the fixing device of the present invention in use.

[0030] Description of Reference Numerals

[0031] 100: ground rod 110: rod body

[0032] 111: head 112: sharp part

[0033] 114: spiral protrusion 120: curved connection part

[0034] 121: Extrusion part 122: Screw hole

[0035] 123: Fastening bolt C: Ground wire

[0036] S: socket T: power tool DETAILED DESCRIPTION

[0037] Features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings.

[0038] Prior to this, the terms or words used in this specification and claims should be based on the principle that the inventor can appropriately define the concept of the term in order to describe his invention in the best way, and should be interpreted in accordance with the meaning and concept of the technical idea of ​​the present invention.

[0039] Also, the terms and words used in the specification and claims are used only to describe specific embodiments and are not intended to limit the present invention.

[0040] For example, unless the context clearly dictates otherwise, expressions of a single quantity include expressions of a plurality of quantities. At the same time, it should be understood that the terms "include", "have" or "have" refer to the existence of features, numbers, steps, operations, components, components or combinations thereof recorded in the specification, rather than excluding in advance the existence or additional possibility of one or more other features or numbers, steps, operations, components, components or combinations thereof.

[0041] In addition, when a part of a layer, film, region, plate, etc. is mentioned as being "above" another part, this includes not only the case where it is directly "above" the other part, but also the case where there are other parts in between. Conversely, when a part of a layer, film, region, plate, etc. is mentioned as being "below" another part, this includes not only the case where it is directly "below" the other part, but also the case where there are other parts in between.

[0042] Meanwhile, terms including ordinal numbers such as "first" and "second" as used in this specification may be used to describe various constituent elements, but the constituent elements are not limited to the terms. The terms are only used to distinguish one constituent element from another constituent element.

[0043] Hereinafter, when describing in detail an embodiment of the present invention with reference to the accompanying drawings, the same symbols are used for the same configurations, and for the sake of clarity, different parts are mainly described to avoid repetition as much as possible.

[0044] Figure 2 is a three-dimensional diagram of a ground rod according to the present invention, Figure 3 is a top view of the grounding rod in use according to the present invention, Figure 4 is a cross-sectional view of a ground rod in construction according to the present invention, Figure 5 1 is a top cross-sectional view of a ground rod according to the present invention in use. As shown in the figure, the ground rod 100 according to the present invention includes a rod body 110, a curved connecting portion 120, and a fixing device.

[0045] The rod body 110 is a cylindrical member having a steel core bundle covered with a conductive material such as copper, and is buried to a certain depth underground.

[0046] Meanwhile, the rod body 110 is provided with a head 111 at the upper portion and a sharp portion 112 at the lower end.

[0047] The head 111 is combined with an electric tool T for rotating the rod body 110 so that the rod body 110 can be inserted into the ground more easily.

[0048] In this case, the head 111 may be formed in a polygonal shape corresponding to the shape of the socket S so as to be smoothly inserted into the socket S assembled on the electric tool T. In this embodiment, the head 111 is shown to be formed in a quadrangular shape, but it is not necessarily limited to this, and may be formed in various shapes such as a hexagon or an octagon according to the shape of the socket S.

[0049] The sharp portion 112 is configured to be convergent downward so that the rod body 110 can be smoothly inserted into the ground.

[0050] The pointed portion 112 may also be formed into a right circular cone shape that is symmetrically inclined to converge toward the center of the rod body 110, but may also be formed into an oblique circular cone shape in which the center line connecting the apex of the cone and the ground of the cone does not intersect the bottom surface of the cone at right angles.

[0051] If the sharp portion 112 is configured as an oblique cone, the contact resistance of the rod body 110 to the ground is reduced when the rod body 110 rotates compared to a right cone. At the same time, since the rod body 110 digs the ground in a circular shape when rotating, the rod body 110 can be buried to a certain depth underground more easily.

[0052] In view of this, the sharp portion 112 is preferably configured in an oblique conical shape inclined only to one side so that it can dig the ground with a diameter corresponding to the thickness of the rod body 110 .

[0053] Meanwhile, the rod body 110 may have a spiral protrusion 114 disposed along the outer circumference in the up-down direction.

[0054] If the rod body 110 is provided with a spiral protrusion 114, the soil and sand generated during the excavation process can be discharged to the ground by the spiral protrusion 114, so that the rod body 110 can be quickly buried underground. The spiral protrusion 114 increases the bonding force between the rod body 110 and the ground, so that the rod body 110 can be buried more firmly to a certain depth underground, and as the ground contact area increases, the discharge efficiency can be improved.

[0055] The curved connection portion 120 is a pipe with both ends open, and is welded to the side of the rod body 110 in a horizontal state.

[0056] The curved connection portion 120 has an inner diameter greater than the diameter of the ground wire C, so that the ground wire C can smoothly pass through the inner portion.

[0057] Meanwhile, the bent connection portion 120 is bent into a “┒” shape so as to face the other grounding rods 100 through which the grounding wire C passes. In this case, the bending angle of the bent connection portion 120 does not need to be particularly limited, and the bent connection portion 120 bent at an appropriate angle is selected and applied according to the installation position of the other grounding rods 100 to be passed.

[0058] On the other hand, the grounding wire C passing through the inner part of the curved connection part 120 is firmly fixed to the curved connection part 120 by means of a fixing device.

[0059] In this case, the fixing means may be extrusion parts 121 provided at both ends of the curved connection part 120. Only when the curved connection part 120 is made of a metal material, the extrusion parts 121 may be formed by an extrusion tool at a work site.

[0060] like Figure 6 As shown, the fixing device may also be screw holes 122 provided at both ends of the curved connection portion 120 and fastening bolts 123 fastened to the screw holes 122 to be close to the grounding wire C.

[0061] In this case, since there is no need to install the pressing portion 121 using a pressing tool at the work site, there is an advantage that the ground wire C can be fixed more simply.

[0062] The ground rod 100 of the present invention constructed in this way is buried underground to a certain depth by the following method.

[0063] First, the rod body 110 is erected vertically to the ground at a grounding position, and then the socket S assembled on the electric tool T is installed on the head 111 of the rod body 110 .

[0064] Since the head 111 of the rod body 110 is formed in a polygonal shape, it can be smoothly inserted into the socket S.

[0065] When the head 111 of the rod body 110 is inserted into the socket S, the electric tool T is operated.

[0066] Thus, the rod body 110 starts to be buried underground while rotating, and when buried to a certain depth, the operation of the electric tool T is stopped. Therefore, even if the staff does not knock the rod body 110, they can use the electric tool T to quickly and easily bury the rod body 110 to a certain depth underground.

[0067] At this time, the rod body 110 can be buried underground more quickly by relying on the sharp portion 112 at the lower end of the rod body 110. When the spiral protrusions 114 are arranged in the up-down direction along the outer circumference of the rod body 110, the rod body 110 can be buried underground more quickly while being given a stronger digging force, and can not only greatly improve the bonding strength with the ground, but also greatly improve the discharge efficiency.

[0068] In this manner, the ground rods 100 are buried underground in a triangular arrangement at intervals of 2 m.

[0069] On the other hand, after all the grounding rods 100 are buried, the grounding wires C are passed through the curved connection parts 120 installed on the rod bodies 110 of the grounding rods 100 in sequence.

[0070] At this time, since the bent connection portion 120 is bent into a “┒” shape so as to face the other grounding rods 100 through which the grounding wire C passes through the bent connection portion 120, the grounding wire C does not need to be excessively bent and is naturally connected to the bent connection portion 120 of the other grounding rod 100, so that the grounding wire C can be easily installed on the grounding rod 100.

[0071] And, when the grounding wire C is firmly fixed to the bent connection part 120 by squeezing both ends of each bent connection part 120 by a fixing device or by tightening the fastening bolt 123, the grounding is completed.

[0072] Although preferred embodiments of the present invention have been illustrated and described above with reference to the accompanying drawings, various modifications and changes may be made without departing from the spirit or scope of the present invention according to the claims, and these should also be included within the scope of the present invention.

Claims

1. A grounding rod, characterized in that: include: A rod body, with a head at the upper end and a sharp portion at the lower end; a bent connection portion, which is bent into a "┒" shape, and is a pipe with both ends open to allow a grounding wire to pass through the inside thereof, and is welded to the side of the rod body in a horizontal state; and A fixing device is used to fix the grounding wire passing through the interior of the bent connection part on the bent connection part.

2. The grounding rod according to claim 1, characterized in that: On the rod body, spiral protrusions are arranged along the outer circumference in the up and down directions.

3. The grounding rod according to claim 1, characterized in that: The head portion is formed of a polygonal shape corresponding to the shape of a socket assembled on the electric tool so as to be insertable into the socket.

4. The grounding rod according to claim 1, characterized in that: The sharp portion is formed in an oblique cone shape with a right-angled triangle cross section.

5. The grounding rod according to claim 1, characterized in that: The fixing device is an extrusion part arranged at both ends of the curved connection part.

6. The ground rod according to claim 1, characterized in that: The fixing device is screw holes arranged at both ends of the bent connection part and fastening bolts fastened on the screw holes to closely fit the grounding wire.

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