KR100775849B1 - Ground plate for electric pole - Google Patents

Abstract

A ground plate for an electric pole is provided to support an upright state of the electric pole from the ground strongly when the electric pole is constructed and expand a contact size of the ground with a leading-out line led out of the electric pole through a laying tube and a ground part. A semicircular groove(111) is formed at an internal side of a pair of laying pieces(110) of two groups to be laid and constructed in the ground to be adjacent to an outer circumference surface of an electric pole(10). A containing groove(113) is formed in an outer circumference surface of the laying pieces(110). A connection implement(117) on which a coupling bolt(115) is bidirectionally protruded is formed at one side of the containing groove(113). Slit grooves(119) are formed at adjacent both sides of the semicircular groove(111) as one body. A pair of connection pieces(130) of two groups are inserted and connected into the containing groove(113) to be orthogonal to the laying pieces(110) to be capable of mutually connecting the laying pieces(110). Combining implements(135) having coupling holes(133) into which the coupling bolt(115) is inserted are protruded and formed on both end parts of the connection pieces(130). A pair of through holes(137) to which bearings(141) are connected are formed at an internal side of the connection pieces(130). A plurality of laying tubes(140) rotatably connect to an inner diameter of the bearings(141) to be capable of supporting the electric pole(10). A plurality of connection holes(143) are formed at an external side of the laying tubes(140). Connection bars are inserted and connected into the respective connection holes(143). The first ground ball protruded on the ground and the second ground ball internally located are welded and fixed to both ends of the connection bars. An elastic spring connects to an outer circumference surface of the connection bars located at the second ground ball side. A combining bolt(151) of a connection cover(153) of a ground part(150) is coupled to an upper part of the laying tubes(140) to be capable of grounding a leading-out line(20) led out of the electric pole(10) in the ground. A connecting hole opened up and down is formed at an internal side of the connection cover(153). The leading-out line(20) is inserted into an upper part of an inner circumference surface of the ground part(150), and an end part of a connecting rod(157) is fitted into a lower part of the inner circumference surface to connect the ground part(150) to the leading-out line(20). A pair of rubber plates(160) of two groups are safely received in an upper part of the laying pieces(110) to be capable of preventing an electric shock of a person who passes around the electric pole(10). A pair of projections(161) inserted into the slot grooves(119) are formed on a lower part of the rubber plates(160). A pair of combining holes(163) into and on which the laying tubes(140) are inserted and protruded are formed at an internal side of the rubber plate(160). A plurality of cutting grooves(165) are formed in an upper part of the rubber plate(160). A plurality of cases(170) are inserted and connected into the cutting grooves(165) to prevent the laying tubes(140) from being exposed to the outside. A space part(171) in which the laying tubes(140) are contained is formed at an internal side of the cases(170). An opening groove(173) in which the leading-out line(20) is led is formed in an upper part of the cases(170). An airtight ring(175) is connected between the opening groove(173) and the leading-out line(20).

Description

Electric pole ground plate {GROUND PLATE FOR ELECTRIC POLE}

The present invention relates to a grounding plate for electric poles, and more particularly, it is possible to firmly support the upright state of electric poles from the ground when constructing electric poles, and to provide the buried pipes and the grounding means for the contact areas of the lead wires and the grounds drawn out in the electric poles. The present invention relates to an electric pole grounding plate that can be lowered to effectively lower grounding resistance.

In general, modernized society, which is industrialized, informatized and urbanized, consumes a lot of energy in dense areas. Among these, electric energy is widely used because it is convenient to use, easy to transport, clean and free of pollution, Accordingly, stable supply of power is an important factor throughout the industry.

The stable supply of electric energy requires stable supply of natural disasters such as lightning strikes, as well as high quality of electricity. In order to reliably deliver high-quality power generated from power plants to general customers, A good grounding is essential while ensuring the quality of the distribution lines.

The ground not only serves to protect humans from electric power or lightning, but also provides a reference potential in terms of electric power business, protects the electric power equipment from lightning and serves as a path for return current in the event of a system failure. Not only are they in charge, but as the information society is accelerating, facilities such as facsimile or computer-based image information and the Internet are being used, and the damage and damage of accidents are relatively increasing. Due to the weak side of steep waves, the demand for higher power quality is increasing.

The power is transferred from the power plant to the substation and is often delivered to the home via a pole transformer on the pole along the distribution line supporting the concrete pole. On the other hand, there is a problem that the construction cost is more than 10 times that of overhead lines and the impact of accidents is large. Especially, considering the aesthetics of urban centers, underground lines are preferable, but it is not easy to construct underground lines in existing cities. Is being transmitted together.

In addition, in order to supply electric power that has undergone various stages of transformation in the substation to general consumers in each home or building, distribution lines such as electric poles installed at regular intervals in each region are used. To prevent abnormal voltages by ensuring the operation of the protective relay in the event of high voltage or ground fault, and to protect the equipment by abnormal voltages such as brain and surge, and to prevent various electrical disasters due to short circuit. It's done.

On the other hand, grounding protects the operator from electric shock accidents and insulates the equipment when an excessive abnormal voltage such as lightning surge or switching surge occurs in the power equipment accident or poor insulation, power circuit or electronic device. In addition to preventing destruction, it also removes noise from information and communication facilities to improve the functionality of achieving high quality information transmission.

That is, a means for electrically connecting a metal or a conductive object to the earth and minimizing the potential or the difference in potential thereof as the earth.

To this end, the grounding work of the distribution line has excavated a pit having a predetermined depth to bury electric poles, and then excavates one more pit having a predetermined depth and width to one side of the pit, and uses a plurality of grounds used for grounding the pit. The ground rod of the hammer is struck by using a tool such as a hammer to be embedded, and then the lead wire drawn out in the pole and the ground rod are connected in series or in parallel. When the work is completed, the construction is performed by filling the pit with contents such as soil. Installation work will be done.

However, such a conventional grounding construction of Jeonju has a problem in that the excavation and recovery costs are excessively required because a pit for laying a ground rod in addition to a pit for constructing Jeonju must be drilled on a road or sidewalk block.

In addition, the conventional pole has a problem that the pole falls by natural phenomena such as gusts or heavy rain because it maintains the upright state of the pole only through the burial of the lower end.

The present invention has been made in view of the above problems, the purpose of which is to support the upright state of Jeonju from the ground of Jeonju, as well as the buried pipe and ground contact area drawn out in Jeonju and buried pipe and ground By extending through the means, there is provided a pole grounding plate which allows the grounding resistance to be lowered efficiently.

Another object of the present invention is to be able to carry out the grounding work at the same time with the construction of Jeonju without additional excavation work for the grounding construction in Jeonju construction, can shorten the construction period during construction of Jeonju, thereby reducing the construction cost Provide a pole grounding plate to ensure

Another object of the present invention is to install a pair of rubber plates protruding on the ground of the site where the pole is constructed, so that the person who passes can recognize that the passage area is an electrical hazard area and through the rubber plate It provides a pole grounding board that blocks the ground and people who pass through it to prevent electric shock accidents.

The present invention for achieving the above object

A semicircular groove is formed on the inner side so as to be buried in the ground in contact with the outer circumference of the pole, and an accommodating groove is formed on the outer circumferential surface. Two pairs of buried pieces formed integrally with slit grooves on both adjacent sides of the

The pair of insertion pieces connected to the receiving groove perpendicular to the buried piece to connect the two pairs of buried pieces, a coupling hole having a fastening hole for inserting the fastening bolts at both ends is formed protruding, the bearing is connected to the inside Two pairs of connecting pieces formed with a through hole,

A first ground ball which is rotatably connected to the inner diameter of the bearing so as to support the electric pole, and a plurality of connection holes are formed on the outside, and connection bars are inserted into and connected to each connection hole to protrude to the ground at both ends of the connection bars; A plurality of buried pipes in which a second ground ball located inside is welded and fixed, and an elastic spring is connected to an outer circumferential surface of the connecting bar on the second ground ball side;

A coupling bolt of a connection cover is bolted to an upper portion of the buried pipe so as to ground the lead wire drawn out from the electric pole, and a connection hole which is opened up and down in the inner side of the connection cover is formed, and is drawn out on the inner peripheral surface. A wire is inserted into the grounding means connected to the lead wire by connecting the end of the connecting rod to the lower end of the inner circumferential surface by a force fitting method;

A pair of protrusions are respectively seated on an upper portion of the embedding piece to prevent an electric shock from passing through the electric pole, and a pair of protrusions are inserted into the respective slit grooves at a lower portion thereof, and the embedding pipe is inserted into and protruded from the inside thereof. A pair of coupling holes are formed, two pairs one pair of rubber plate formed with a plurality of incision grooves on the top and

Inserted into the cutting groove so as to prevent the buried pipe is exposed to the outside, a space portion for receiving the buried pipe is formed on the inside, an opening groove in which the leader line is introduced is formed, the opening groove It comprises a plurality of cases connected to the sealing ring between the lead and the lead.

According to the present invention, it is possible to firmly support the upright state of the pole from the ground during construction of Jeonju, and to extend the contact area between the lead wire and the ground drawn out from the pole through the buried pipe and the grounding means, thereby effectively lowering the ground resistance value. It can be effective.

In addition, it is possible to shorten the construction period during construction of Jeonju by allowing the grounding work to be performed simultaneously with the construction of Jeonju without additional excavation work for the construction of the construction site of Jeonju. .

In addition, by installing two pairs of rubber plates protruding on the ground of the site where the pole is constructed, it allows people who pass through to recognize that the traffic area is an electrical hazard area, and people who pass through the rubber plate through the rubber plate. It is effective to prevent an electric shock accident by blocking the gap.

Hereinafter, an electric pole ground plate according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in detail.

1 is an exploded perspective view showing a pole grounding plate according to a preferred embodiment of the present invention, Figure 2 is a perspective view showing a pole grounding plate according to a preferred embodiment of the present invention.

1 and 2, the pole grounding plate 100 according to a preferred embodiment of the present invention is a pair of buried pieces 110, two pairs of pairing ring 120, two pairs 1 It is configured to include a pair of connecting pieces 130, a plurality of buried pipe 140, a grounding means 150, a pair of rubber plate 160 and a plurality of cases 170.

The pair of buried pieces 110 is buried in the ground in contact with the outer peripheral surface of the electric pole (10).

At this time, each of the buried piece 110 has a semi-circular groove 111 having the same diameter as the diameter of the electric pole 10, the receiving groove 113 is formed on the outer peripheral surface, the receiving groove 113 The coupling bolt 117 is formed on one side of the coupling bolt 115 protrudes in both directions, the slit groove 119 is integrally formed on both adjacent sides of the semi-circular groove (111).

In addition, the pair of pair of ring 120 is interposed between the semi-circular groove 111 and the pole 10 so that the connection portion of the semi-circular groove 111 and the pole 10 can be closely.

At this time, the connection ring 120 is preferably made of a rubber material that is an insulator.

On the other hand, the two pairs of connecting pieces 130 is inserted into the receiving groove 113 orthogonal to the buried piece 110 so as to connect the two pairs of buried pieces 110 to each other.

At this time, each of the connecting pieces 130, the coupling bolt (115) having a fastening hole 133 so as to fasten the nut 131 is inserted into both ends of the fastening bolt 115 is formed, the inner one A pair of through holes 137 are formed.

In addition, the plurality of buried pipe 140 is rotatably connected to the inner diameter of the bearing 141 forcibly fitted into the through holes 137.

At this time, each of the buried pipe 140 has a spiral 142 is formed on the upper inner circumferential surface, a plurality of connecting holes 143 is formed on the outside, the connecting bar 144 is inserted into each of the connecting holes 143 Connected.

In addition, each of the connecting bars 144 is welded and fixed to both ends of the first ground ball 145 protruding to the ground and the second ground ball 146 located therein, the second ground ball 146 The elastic spring 147 is connected to the outer circumferential surface of the connecting bar 144.

Accordingly, the first ground ball 145 is usually in close contact with the outer circumferential surface of the buried pipe 140 by the elastic force of the elastic spring 147.

At this time, the first ground ball 145, the second ground ball 146 and the connecting bar 144 is made of a rapid material as a conductor, the buried pipe 140 is preferably made of a synthetic resin material as an insulator.

In addition, the buried pipe 140 is preferably refracted at an angle enough to support the electric pole 10 when buried.

On the other hand, the grounding means 150 is connected between the lead wire 20 and the buried pipe 140 to ground the lead wire 20 drawn from the pole 10 to the ground.

At this time, the grounding means 150 is a connection hole which is vertically opened in the inner side of the connecting cover 153 protruding the coupling bolt 151 at the bottom to be bolted to the spiral 142 of the buried pipe 140 155 is formed, the leader line 20 is inserted into the upper inner circumferential surface of the connecting hole 155, the end of the connecting rod 157 is connected to the lower inner circumferential surface of the connecting hole 155 in the interference fit method It is connected to the leader line 20.

At this time, the leader line 20 and the connecting rod 157 is connected by welding, the connecting rod 157 is preferably made of a conductor.

In addition, the connection cover 153 and the coupling bolt 151 is preferably made of an insulator.

Meanwhile, the two pairs of rubber plates 160 are respectively seated on the two pairs of the buried pieces 110 to prevent the electric shock of the person passing around the electric pole 10, and the upper surface is grounded. Is the same position as.

At this time, the rubber plate 160 has a pair of protrusions 161 which are inserted into the respective slit grooves 119 in the lower portion thereof, and a pair of coupling holes into which the buried pipe 140 is inserted and protruded inward. 163 is formed, a plurality of incision groove 165 is formed on the top.

In addition, the plurality of cases 170 is connected to the lower portion is inserted into the cutting groove 165 to prevent the buried pipe 140 is exposed to the outside.

At this time, the case 170 has a space portion 171 is formed therein is accommodated in the upper portion of the buried pipe 140, the opening groove 173 is formed in the leader line 20 is introduced therein, A sealing ring 175 is connected to prevent foreign matter from flowing between the opening groove 173 and the leader line 20.

Thus, the present invention made of a combination configuration as described above, the present invention can be ground construction at the same time with the construction of Jeonju without excavation work for a separate ground construction during construction of Jeonju, can reduce the construction cost according to construction of Jeonju In addition, the construction period is to be shortened, and construction and operation relations will be described.

3A and 3B are an enlarged view of the A portion and an operating state of FIG. 2, and FIG. 4 is a cross-sectional view illustrating a construction state of a pole grounding plate according to a preferred embodiment of the present invention.

3A, 3B and 4, in order to install the pole grounding plate 100 according to a preferred embodiment of the present invention on the pole 10, first, excavation work to the site for the pole 10 construction Form a pit.

After placing the pole 10 upright in the pit formed as described above, the installed ground pole plate 100 of the present invention is installed to bury the excavated pit.

That is, the outer circumferential surface of the electric pole 10 is positioned in the semicircular groove 111 formed on the inner circumferential surface of the pair of buried pieces 110. At this time, the connection ring 120 is interposed between the electric pole 10 and the semicircular groove 111.

Accordingly, the connection ring 120 provides an elastic force between the buried piece 110 and the pole 10 to prevent breakage of the pole 10 due to the construction of the buried piece 110.

Subsequently, a pair of connecting pieces 130 are inserted into the receiving groove 113 of the buried piece 110 so as to be orthogonal to the buried piece 110. At this time, the fastening bolt 115 is inserted into the fastening hole 133 of the connecting piece 130, and the nut 131 is fastened to the end of the fastening bolt 115.

Accordingly, the pair of buried pieces 110 of the pair has a strong fastening relationship with the electric pole 10 by the connecting piece 130.

Thereafter, the bearing 141 is forcibly fitted into the through hole 137 of the connection piece 130, and the buried pipe 140 is connected to the inner diameter of the bearing 141 so as to be hingeable. At this time, the bearing 141 and the buried pipe 140 is connected in an interference fit method.

Accordingly, the buried pipe 140 can be freely adjusted so that the refractive portion toward the outside of the pole through the hinge rotation.

At this time, the connection bar 144 is inserted into the connection hole 143 formed on the outer circumferential surface of the buried pipe 140, respectively, and the first ground ball 145 and the second ground at the end of each connection bar 144 The ball 146 is fixed by welding. In this case, the first ground ball 145 protrudes to the ground, and the second ground ball 146 is located in the buried pipe 140. In addition, an elastic spring 147 is connected to an outer circumferential surface of the connecting bar 144 on the side of the second ground ball 146.

Accordingly, one end of the elastic spring 147 is in contact with the second ground ball 146, the other end is in contact with the inner surface of the buried pipe 140.

Therefore, the first ground ball 145 is normally in contact with the buried pipe 140 by the elastic force of the elastic spring 147, when the connecting rod 157 is inserted into the buried pipe 140, the connecting rod 157 pushes the second ground ball 146 to the ground side, whereby the first ground ball 145 protrudes to the ground side to expand the contact area with the ground. As a result, the ground resistance value is lowered.

Thereafter, the connection cover 153 of the grounding means 150 is bolted to the upper portion of the buried pipe 140.

That is, the coupling bolt 151 protruding from the lower portion of the connecting cover 153 is bolted to the spiral 142 formed on the upper inner peripheral surface of the buried pipe 140.

Accordingly, the grounding means 150 and the buried pipe 140 has a close coupling relationship.

In addition, when the grounding means 150 is coupled to the buried pipe 140, the connecting rod 157 of the grounding means 150 is inserted into the buried pipe 140 to press the second ground ball 146.

When the second ground ball 146 is pressed in this way, the first ground ball 145 protrudes to the ground.

Accordingly, the ground resistance through the lead wire 20 can be effectively lowered by extending the contact area between the ground and the ground through the first ground ball 145.

Thereafter, two sets of pairs of rubber plates 160 are seated on the buried piece 110. At this time, the protrusion 161 of the rubber plate 160 is inserted into the slit groove 119 of the buried piece 110.

Here, the rubber plate 160 seated on the upper portion of the buried piece 110 is to maintain a certain safety distance between the electric pole 10 and the pedestrian, and at the same time to block the leakage of the road to prevent electric shock. .

In addition, the case 170 has a lower portion inserted into the incision groove 165 so as to prevent the buried pipe 140 is exposed to the outside to maintain an upright state. At this time, a leader line flows into the opening groove 173 of the case 170, and a sealing ring 175 is connected between the opening groove 173 and the leader line 20.

Accordingly, it is possible to block foreign matter from flowing into the case 170.

Therefore, the electric pole ground plate of the present invention can ground the lead wire drawn out from the pole pole on the ground during the construction of the pole without additional excavation work, it is possible to effectively lower the ground resistance value by expanding the contact area with the ground.

1 is an exploded perspective view showing a pole grounding plate according to a preferred embodiment of the present invention;

2 is a perspective view showing a pole grounding plate according to a preferred embodiment of the present invention;

3A and 3B are an enlarged view of an A portion and an operating state of FIG. 2;

Figure 4 is a cross-sectional view showing a construction state of the pole grounding plate according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: pole 20: leader line

110: buried 120: connection ring

130: connection section 140: buried pipe

150: grounding means 160: rubber plate

170: case

Claims (1)

Semicircular groove 111 is formed on the inner side to be buried in the ground in contact with the outer circumferential surface of the electric pole 10, the receiving groove 113 is formed on the outer circumferential surface, the fastening bolt (one side of the receiving groove 113) The connector 117 protruding in both directions 115 is formed, two pairs of buried pieces 110 formed integrally with the slit groove 119 on both adjacent sides of the semi-circular groove 111, The fastening hole 133 is inserted into the receiving groove 113 to be orthogonal to the buried piece 110 so as to connect the two pairs of buried pieces 110 to each other, the fastening bolts 115 are inserted at both ends. A coupler 135 having a protrusion formed therein, and a pair of connecting pieces 130 having a pair of through holes 137 connected to the bearing 141 inside, Is rotatably connected to the inner diameter of the bearing 141 to support the electric pole 10, a plurality of connection holes 143 are formed on the outside, connecting bars 144 in each of the connection holes 143 Is inserted and connected to the first ground ball 145 protruding to the ground at both ends of the connection bar 144 and the second ground ball 146 located therein are welded and connected to the second ground ball 146 side And a plurality of buried pipe 140, the elastic spring 147 is connected to the outer peripheral surface of the bar 144, The coupling bolt 151 of the connection cover 153 is bolted to the upper portion of the buried pipe 140 to ground the lead wire 20 drawn from the electric pole 10 to the ground, the connection cover 153 Connection hole 155 is opened up and down inside the inner), the leader line 20 is inserted into the upper inner circumferential surface, the end of the connecting rod 157 is connected to the lower inner circumferential surface in the interference fit method is the leader line (20) And grounding means 150 connected to A pair of protrusions 161 are respectively mounted on the buried piece 110 to be prevented from electric shock to the person passing around the electric pole 10, and inserted into each of the slit grooves 119 in the lower portion. And a pair of coupling holes 163 into which the buried pipe 140 is inserted and protruded from the inside thereof, and a pair of rubber plates 160 having a plurality of cutout grooves 165 formed thereon; Inserted and connected to the incision groove 165 to prevent the buried pipe 140 is exposed to the outside, a space portion 171 is formed therein is accommodated in the buried pipe 140 is formed, withdrawal at the top An opening groove 173 through which the line 20 flows is formed, and a plurality of cases 170 are connected between the opening groove 173 and the leader line 20 to include a sealing ring 175. Electric pole ground plate.

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