JP4614832B2 - Electric pole grounding member - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a power pole grounding member, and more specifically, a power pole grounding that can adjust the surface area according to the size of a drilling hole during construction of a power pole and can be easily carried when moving to a construction site or the like. It relates to members.

  When constructing power distribution equipment such as utility poles, in order to prevent accidents due to electric leakage, an operation of burying a grounding member at the base and connecting a grounding wire is performed. Generally, the grounding member is made of a conductive metal such as copper. However, since the surface area has been narrow and the shape has been constant, the grounding resistance can be further reduced and the work can be performed more flexibly. There was a need for a grounding member that could respond to the situation in the field.

In view of this point, the effective area can be expanded or the shape can be appropriately changed according to the situation at the site, such as the grounding member described in Patent Document 1 and the power pole grounding component described in Patent Document 2. A grounding member has been developed.
JP-A-10-125367 JP 2000-30775 A

According to the inventions described in Patent Documents 1 and 2, the grounding member can be deformed to increase the area, so that the groundable range is widened and the grounding resistance can be reduced. Furthermore, in the invention described in Patent Document 2, it is possible to save the labor of laying work.
However, despite the fact that most of the excavation holes for constructing utility poles are circular, many of the conventionally provided ground members are not circular, including the inventions described in Patent Documents 1 and 2, and the bottom surface of the excavation holes Cannot be used effectively.

In order to solve the above problems, the present invention provides a utility pole in which a plurality of substantially fan-shaped plate-like members are arranged radially adjacent to the bottom surface of a drilling hole for construction of a utility pole to form a circular shape. It is a grounding member. This electric pole grounding member has a plurality of water holes.
In the power pole grounding member, each of the plurality of plate-like members further includes a first slide long hole that opens in a radial direction from the center portion, and a second slide long hole that opens along the peripheral edge portion. The central portion is pivotally attached to each other by the pivoting means, and the peripheral portion is mutually connected by the connecting means. The pivoting means slides and expands and contracts along the first slide long hole of each plate member, and the connecting means slides and contracts along the second slide long hole of each plate member.
Furthermore, in the grounding member for electric poles provided by the present invention, the plate-like member is formed of a conductive metal.

According to the grounding member for electric poles of the present invention, the size can be changed as appropriate according to the size of the excavation hole, so that an effective resistance area can be easily obtained. Moreover, since it can be reduced in size when stored, it is easy to carry when moving to a utility pole construction site or the like.
Furthermore, since there is little deformation at the time of embedding, it can be reused when it is dug along with the transfer of the utility pole.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1 and 2 are schematic diagrams illustrating a first embodiment of the present invention. As shown in the drawing, the power pole grounding member (10) is configured by using a plurality of plate-like members (1a).
The plate-like member (1a) is made of a conductive metal such as copper, has a substantially fan shape, and has a plurality of water passage holes (2) for draining water. A plurality of plate-like members (1a) are prepared in advance at the time of the utility pole construction work, and after excavating the building pole holes, the plate-like members (1a) are juxtaposed on the bottom surface. At this time, as shown in FIG. 2, for example, a circular arc is formed on the outer periphery of the fan-shaped arc, and the plate members (1a) are installed one by one so as to partially overlap each other, and the power pole grounding member (10) And connect the installation line of the utility pole to a part of it.

  Although there is no restriction | limiting in particular in the magnitude | size of a plate-shaped member (1a), It is desirable to spread | lay out so that the ground cannot be seen in the bottom face of an excavation hole. In FIG. 2, seven plate-like members (1a) are used, but the number used is not limited to this, and a necessary number may be used according to the size of the excavation hole.

Next, a second embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 3, the plate-like member (1 b) includes a first slide long hole (3) provided in the radial direction from the central portion of the plate-like member (1 a) and a first opening that opens along the peripheral portion. 2 slide long holes (4) are further provided, and are made of a conductive metal such as copper, like the plate-like member (1a).

  As in the first embodiment of the present invention, the plate-like member (1b) is juxtaposed so as to form a circle having a fan-shaped arc as the outer periphery at the bottom of the building pillar hole. The plurality of plate-like members (1b) are pivotally attached at the center by means of pivoting means (5) such as screws, and another plate-like member adjacent at the peripheral edge by connecting means (6) such as a small screw ( 1b) to constitute a power pole grounding member (10). This is shown in FIG.

  In the electric pole grounding member (10) of this embodiment, the pivoting means (5) is accommodated in the first slide long hole (3) of each plate-like member (1b). By changing the position of the pivoting means (5) along the first slide elongated hole (3) of each plate-like member (1b), the utility pole grounding member (10) expands and contracts, and the surface area changes. Therefore, if the size of the power pole grounding member (10) is adjusted in accordance with the size of the excavated building pillar hole so as to cover the entire bottom surface of the hole, the grounding resistance can be further reduced.

  The connecting means (6) is provided so as to be accommodated in the second slide long hole (4) of one adjacent plate-like member (1b) except for one plate-like member (1b). When carrying the power pole grounding member (10), when the connecting means (6) is moved along the second slide slot (4), as shown in FIG. Another plate-like member (1b) overlaps under 1b). By downsizing in this way, the utility pole grounding member (10) can be easily carried to the utility pole construction site.

  In the present embodiment, as in the first embodiment of the present invention, the size of the plate member (1b) and the number of sheets to be used are not limited. In addition, since the grounding members of the first and second embodiments of the present invention are less deformed when buried, they can be reused, for example, when a utility pole is moved.

The figure which shows the plate-shaped member in 1st Example of this invention. The figure explaining the 1st Example of this invention. The figure which shows the plate-shaped member in the 2nd Example of this invention. The figure explaining the 2nd Example of this invention. The figure explaining the 2nd Example of this invention. The figure explaining the 2nd Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Power pole grounding member 1a, 1b Plate-shaped member 2 Water flow hole 3 1st slide long hole 4 2nd slide long hole 5 Pivoting means 6 Connection means

Claims (3)

A plurality of substantially fan-shaped plate-like members are arranged radially adjacent to the bottom surface of the excavation hole for electric pole construction, and is a grounding member for electric poles formed in a circular shape,
Each of the plate-like members is
A plurality of water holes,
A first slide slot opening radially from the center;
A second slide slot opening along the peripheral edge,
The plurality of plate-like members are pivotally connected to each other by pivoting means at the central portion, and are connected to each other at the peripheral portion except for one end by a coupling means,
It said pivot means, slides along the first sliding slot of each said plate member expands and contracts as the plate-like member overlap,
It said coupling means, shrinks as to slide along said second slide slot of each said plate-like member, another one of the plate-shaped member under the plate-like member having the one end which is not connected overlap A power pole grounding member. The electric pole grounding member according to claim 1,
The electric pole grounding member, wherein the plate member is made of a conductive metal. A method for installing a grounding member for a power pole embedded in a drilling hole for construction of a power pole,
Producing a plurality of substantially fan-shaped plate-shaped members made of a conductive metal having a plurality of water passage holes;
After excavating the excavation hole, the plate-like members are juxtaposed one by one so that the substantially fan-shaped arc forms a circular shape with an outer periphery and part of the arcs overlap each other. A method of installing a grounding member for a utility pole, comprising:

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