KR20090110467A - Boring screw device for earthing bar reclamation and ground connection reduction stuff injection - Google Patents

Boring screw device for earthing bar reclamation and ground connection reduction stuff injection Download PDF

Info

Publication number
KR20090110467A
KR20090110467A KR1020080035987A KR20080035987A KR20090110467A KR 20090110467 A KR20090110467 A KR 20090110467A KR 1020080035987 A KR1020080035987 A KR 1020080035987A KR 20080035987 A KR20080035987 A KR 20080035987A KR 20090110467 A KR20090110467 A KR 20090110467A
Authority
KR
South Korea
Prior art keywords
ground
screw
rod
hexagonal
reducing agent
Prior art date
Application number
KR1020080035987A
Other languages
Korean (ko)
Other versions
KR100958536B1 (en
Inventor
이수규
Original Assignee
이수규
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이수규 filed Critical 이수규
Priority to KR1020080035987A priority Critical patent/KR100958536B1/en
Publication of KR20090110467A publication Critical patent/KR20090110467A/en
Application granted granted Critical
Publication of KR100958536B1 publication Critical patent/KR100958536B1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
    • H02G13/40—Connection to earth
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E21B7/201—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes with helical conveying means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Earth Drilling (AREA)

Abstract

PURPOSE: A boring screw device for inputting earth resistance lowering agent and burying an earth bar is provided to reduce a working time and personnel expenses by inputting the earth resistance lowering agent and the earth bar into an underground hole at the same time. CONSTITUTION: A boring screw device includes a screw(1), a hexagonal bar(30), a connection unit(20), and a fixing housing(10). The screw has an earth bar chamber and a hexagonal connector. The earth bar chamber is formed in the center of the screw to receive the earth bar. The hexagonal connector is combined in the connection unit. The hexagonal bar is combined in the hexagonal connector. The connection unit has a path and a square shaft hole. The path is used for supplying the earth resistance lowering agent. A rotation axis of a hydraulic rotation device is combined in the square shaft hole. The fixing housing has an earth resistance lowering agent inlet tube and a fixer.

Description

접지봉 매립 및 접지저감제 투입을 위한 천공용 스크류 장치{Boring screw device for earthing bar reclamation and ground connection reduction stuff injection}Boring screw device for earthing bar reclamation and ground connection reduction stuff injection}

본 발명은 접지봉 매립 및 접지저감제 투입을 위한 천공용 스크류 장치에 관한 것으로서, 더욱 상세하게는 노상에 설치되는 전주(가로등, 배전반 등)의 전기적 접지를 위하여 지중에 매립하는 접지봉을 스크류에 의해서 지중에 구멍을 천공하는 동시에 접지봉을 투입하고 접지저감제도 간편하게 공급할 수 있도록 구성된 천공용 스크류 장치에 관한 것이다.The present invention relates to a screw device for drilling boring for embedding the ground rod and ground reducing agent, and more particularly, ground rod embedded in the ground for the electrical grounding of electric poles (street lamps, switchboards, etc.) installed on the road by means of a screw. The present invention relates to a drilling screw device configured to insert a ground rod at the same time as a hole in the hole, and to easily supply a ground reduction agent.

주지하는 바와 같이 노상에 설치된 전주나 가로등, 배전반과 같은 각종 전기시설물(이하 전주라 통칭함)에는 낙뢰나 써지로부터 전기적 안정성을 확보하고 누전으로 인한 각종 안전사고를 미연에 방지하기 위하여 지중에 접지봉이 매설된다.As is well known, various electrical facilities such as electric poles, street lights, and switchboards installed on the road (hereinafter referred to as Jeonju) are equipped with ground rods in the ground to secure electrical stability from lightning strikes and surges and to prevent various safety accidents due to short circuits. Buried.

종래 상기와 같은 접지봉을 시공하는 작업은 대부분 수작업으로 하게 되는데, 작업자가 상기 전주가 설치된 지점으로부터 계산된 거리만큼 이격된 지점에서 삽과 같은 각종 도구를 이용하여 지중에 일정한 깊이로 파고 접지봉을 매립 설치하였다.Conventionally, the construction of the ground rods as described above is mostly done by hand, the worker digging to a certain depth in the ground using a variety of tools, such as a shovel at a point spaced apart by the calculated distance from the point where the pole is installed, and install the ground rods landfill It was.

즉, 접지봉이 설치되기 위한 공간을 지면에서부터 대략 2미터 이상의 깊이를 확보하여야 하므로 그에 따른 작업이 매우 어렵고 많은 노동력과 시간이 소요되므로 작업 규모에 비하여 과다한 인건비가 지출되는 단점이 있다.That is, since the space for installing the ground rod should be secured to a depth of about 2 meters or more from the ground, the work is very difficult and the labor cost is excessively large compared to the working scale because it requires a lot of labor and time.

또한, 상기와 같이 수작업으로는 접지봉의 매설 깊이 2미터 이상을 확보하는데에는 한계가 있기 때문에 접지봉의 매설 깊이가 기준치에 미달 될 수밖에 없는 단점이 있었다.In addition, as described above, there is a limit in securing the embedding depth of the ground rod 2 meters or more, there is a disadvantage that the embedding depth of the ground rod must fall below the reference value.

이러한 단점을 해결하기 위하여 최근에는 굴삭기의 브레이커를 이용하여 접지봉을 지면에 박아 넣는 타공작업을 통해서 접지봉을 지중에 매설하는 기술이 개시되고 있다.In order to solve these disadvantages, a technique for embedding the ground rod in the ground has been disclosed through a punching operation in which the ground rod is driven into the ground using an excavator breaker.

그러나, 접지봉이 매설될 지중의 상태(단단한 정도)에 따라서 차이는 있겠지만 단단할 경우에는 타공작업에 많은 어려움이 따르게 되므로 접지봉을 깊이 2미터 이상으로 매설할 수 없었다.However, although the ground rods will be different depending on the state of the ground (hardness), the ground rods can not be buried more than 2 meters deep because it is difficult to perforate.

또한, 상기와 같은 경우에는 접지봉 주변에 접지저감제를 투입할 수 없기 때문에 접지봉의 기능이 저하되는 등 많은 문제점이 있었다.In addition, in the case as described above, since the ground reducing agent cannot be added around the ground rod, there are many problems such as deterioration of the ground rod function.

본 발명에 의한 접지봉 매립 및 접지저감제 투입을 위한 천공용 스크류 장치는 상기와 같은 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 천공용 스크류 장치에 의해서 지중에 구멍을 천공하는 동시에 접지봉을 지중 약 2미터에서 5미터까지 조정하여 매설할 수 있고, 특히 접지봉의 주변에 접지저감제를 충진하는 작 업을 동시에 할 수 있도록 하여 접지봉을 시공하는 전반적인 작업을 간편하게 할 수 있는 천공용 스크류 장치를 제공하는데 소기의 목적하는 바가 있다.Grounding screw device for embedding the grounding rod and ground reducing agent according to the present invention to solve the above problems, an object of the present invention is to drill a hole in the ground by the drilling screw device at the same time grounding the grounding rod It can be installed by adjusting from 2 meters to 5 meters, and in particular, it provides perforating screw device to simplify the overall work of ground rod installation by allowing the ground rod to be filled at the same time. There is a purpose to be desired.

상기와 같은 목적을 달성하기 위한 본 발명의 접지봉 매립 및 접지저감제 투입을 위한 천공용 스크류 장치는 지중에 구멍을 천공할 수 있게 구성된 스크류와 상기 스크류의 중심에는 지중에 매설되는 접지봉을 수용할 수 있는 접지봉 대기실과 그 상부에는 연결유닛에 결합하기 위한 육각연결구로 구성되며, 상기 육각연결구에 결합되는 육각봉과 접지저감제 공급을 위한 통로 및 유압회전장치의 회전축이 결합되도록 축공이 구성된 연결유닛을 접지저감제 유입관 및 고정구가 구비된 고정하우징에 설치하여 구성됨을 특징으로 한다.Perforated screw device for embedding the ground rod and ground reducing agent of the present invention for achieving the above object can accommodate a screw and a ground rod embedded in the ground in the center of the screw configured to drill holes in the ground Ground rod in the waiting room and the upper part is composed of a hexagonal connector for coupling to the connection unit, grounding the connection unit is configured to connect the hexagonal shaft coupled to the hexagonal connector and the passage for supplying ground reducing agent and the rotating shaft of the hydraulic rotating device It is characterized in that it is installed in the fixed housing provided with a reducing agent inlet pipe and a fixture.

이상과 같은 본 발명에 의한 접지봉 매립 및 접지저감제 투입을 위한 천공용 스크류 장치에 의하면, 지중 약 2미터에서 5미터 범위 내에 깊이를 자유롭게 선택하여 접지봉 및 접지저감제를 시공할 수 있으므로 접지봉의 기능을 향상시켜 누전으로 인한 안전사고를 방지하는 효과가 있으며,According to the screw device for drilling the ground rod for embedding the ground rod and the ground reducing agent according to the present invention as described above, the ground rod and ground reducing agent can be constructed by freely selecting the depth within the range of about 2 meters to 5 meters in the ground, so the function of the ground rod It is effective in preventing safety accidents due to short circuits.

또한, 스크류에 의해서 지중에 구멍을 천공하면서 접지봉과 함께 접지저감제를 투입할 수 있기 때문에 그에 따른 작업시간 단축 및 인건비를 대폭적으로 절감시킬 수 있으므로 경제적인 시공을 할 수 있는 등의 효과가 기대되는 발명이다. In addition, it is possible to reduce the working time and labor costs significantly, as the grounding reducing agent can be put together with the ground rod while drilling holes in the ground by screws, so that the economical construction is expected to be effective. Invention.

이하. 본 발명에 의한 접지봉 매립 및 접지저감제 투입을 위한 천공용 스크 류 장치에 관한 구체적인 실시예를 첨부된 도면과 관련하여 상세하게 살펴보면 다음과 같다.Below. Looking in detail with reference to the accompanying drawings, a specific embodiment of a perforated screw device for embedding the ground rod and grounding reducing agent according to the present invention.

본 발명은 1 내지 3에서 보는 바와 같이 지중에 구멍을 천공할 수 있게 구성된 스크류(1)는 스크류의 중심에는 지중에 매설되는 접지봉을 수용할 수 있는 접지봉 대기실(2)과 그 상부에는 연결유닛에 결합하기 위한 육각연결구(3)로 구성되며,According to the present invention, as shown in 1 to 3, the screw 1 configured to drill a hole in the ground has a ground rod waiting room 2 capable of receiving ground rods buried in the ground at the center of the screw and a connecting unit at the upper portion thereof. Composed of hexagonal connector (3) for coupling,

상기 스크류(1)를 구성하는 육각연결구(3)에 결합하기 위한 육각봉(30)과 접지저감제 공급을 위한 통로(22) 및 유압회전장치의 회전축이 결합되도록 사각축공(21)이 형성된 연결유닛(20)을 마련하여 접지저감제 유입관(11) 및 고정구(12)가 구비된 고정하우징(10)에 회전할 수 있게 설치하여 구성된 것이다.The square shaft hole 21 is formed so that the hexagonal rod 30 for coupling to the hexagonal connector 3 constituting the screw 1 and the passage 22 for supplying the ground reducing agent and the rotary shaft of the hydraulic rotating device are coupled. The unit 20 is provided to be rotatable in the fixed housing 10 provided with the ground reducing agent inlet pipe 11 and the fixture 12.

도면의 미설명 부호 50은 유압회전장치, 51은 회전축, 52는 전주, 53은 접지봉, 54는 접지저감제, 55는 접지봉 매설을 위한 구멍, 56은 접지저감제 제어밸브를 표시한 것이다.In the drawings, reference numeral 50 denotes a hydraulic rotating device, 51 a rotating shaft, 52 a pole, 53 a ground rod, 54 a ground reducer, 55 a hole for a ground rod embedded, and 56 a ground reducer control valve.

이상과 같은 본 발명에 의한 접지봉 매립 및 접지저감제 투입을 위한 천공용 스크류 장치에 관한 실시예를 상세하게 설명하면 다음과 같다.Hereinafter, an embodiment of a screw device for drilling a ground rod embedded and grounding reducing agent according to the present invention will be described in detail as follows.

일반적으로 전주용 스크류를 이용하여 지면에 소정의 위치에 전주용 구멍을 마련하고 전주(52)를 매립하여 설치한다.In general, a pole for the pole is provided in a predetermined position on the ground using a pole for screw, and the pole 52 is installed by being embedded.

그리고, 전주에서 약 0.5~1미터 간격을 두고 지중으로 약 2미터에서 5미터 범위내에서 깊이를 선택하고, 본 발명에 의한 천공용 스크류 장치를 사용하여 구멍을 뚫어주고 동시에 접지봉(53)과 접지저감제(54)를 함께 매설하는 것이다.Then, select a depth within the range of about 2 meters to 5 meters in the ground at intervals of about 0.5 to 1 meters in the pole, and using the drilling screw device according to the present invention to make a hole and at the same time the ground rod 53 and ground The reducing agent 54 is embedded together.

먼저, 유압회전장치(50)의 회전력을 스크류(1)에 전달하기 위하여 유압회전장치를 구성하는 회전축(51)에 연결유닛(2)을 구성하는 사각축공(21)을 결합하고 고정하우징(10)을 구성하는 고정구(12)와 유압회전장치(50)를 연결 로드로 고정하여 고정하우징(10)이 연결유닛을 따라 회전하는 것을 방지할 수 있게 한다.First, in order to transmit the rotational force of the hydraulic rotating device 50 to the screw 1, the square shaft hole 21 constituting the connecting unit 2 is coupled to the rotating shaft 51 constituting the hydraulic rotating device and fixed housing 10 The fixing fixture 12 and the hydraulic rotary device 50 constituting a) by a connecting rod to prevent the fixed housing 10 to rotate along the connection unit.

그리고, 고정하우징(10)에 형성된 접지저감제 유입관(11)에 접지저감제를 공급하기 위한 호스를 연결하고, 연결유닛(20)에 형성된 육각봉(30)에 스크류(1)에 형성된 육각연결구(3)를 결합한다.Then, the hose for supplying the ground reducing agent to the ground reducing agent inlet pipe 11 formed in the fixed housing 10, the hexagon formed on the screw (1) to the hexagonal bar 30 formed in the connection unit 20 Join the connector (3).

이러한 상태에서 스크류(1)에 형성된 접지봉 대기실(2)에 접지봉(53)을 넣고, 전주(51)에서 약 0.5~1미터 간격을 두고 위치를 선택한 후, 접지저감제 제어밸브(56)를 잠가주고 스크류(1)에 형성된 접지봉 대기실(2)에 접지봉(53)을 넣고 스크류(1)를 지면에 대접하고 유압회전장치(50)를 작동시킨다.In this state, the ground rod 53 is placed in the ground rod waiting room 2 formed in the screw 1, and the position is selected at a distance of about 0.5 to 1 meter from the electric pole 51, and then the ground reducer control valve 56 is closed. The ground rod 53 is placed in the ground rod waiting room 2 formed on the screw 1, and the screw 1 is welded to the ground, and the hydraulic rotating device 50 is operated.

그러면, 스크류(1)가 회전하게 되므로 지중 약 2미터에서 5미터 범위 내의 깊이로 접지봉 매설을 위한 구멍(55)을 형성한다.The screw 1 is then rotated to form a hole 55 for embedding the ground rod to a depth within the range of about 2 meters to 5 meters underground.

상기와 같이 접지봉을 매설하기 위한 구멍(55)을 형성하면, 스크류(1)에 형성된 접지봉 대기실(2)에 있는 접지봉(53)도 스크류(1)와 같이 지중 약 2미터에서 5미터 범위 내에 깊이까지 진입하게 된다.When the hole 55 for embedding the ground rod is formed as described above, the ground rod 53 in the ground rod waiting room 2 formed in the screw 1 also has a depth within the range of about 2 meters to 5 meters in the ground, like the screw 1. Will enter.

이러한 상태에서 접지저감제 제어밸브(56)를 작동시켜 접지저감제를 연결유닛을 구성하는 육각봉(30)의 중심에 형성된 접지저감제(54) 공급을 위한 통로(22) 및 스크류에 형성된 접지봉 대기실(2)을 통해서 접지봉 매설을 위한 구멍(55)으로 토출시킨 다음, 스크류(1)를 빼내고 접지선을 전주에 연결하면 되는 것이다.In this state, the ground reducing agent control valve 56 is operated to connect the ground reducing agent to the passage 22 for supplying the ground reducing agent 54 formed at the center of the hexagonal bar 30 constituting the connection unit, and the ground rod formed on the screw. After discharging the ground rod through the waiting room (2) 55, the screw (1) is removed and the ground wire is connected to the pole.

도 1은 본 발명에 의한 스크류 장치의 요부를 분해한 사시도       1 is an exploded perspective view of the main portion of the screw device according to the present invention

도 2는 본 발명에 의한 스크류 장치의 내부구성을 보인 단면도Figure 2 is a cross-sectional view showing the internal configuration of the screw device according to the present invention

도 3은 본 발명에 의한 스크류 장치의 측면도Figure 3 is a side view of the screw device according to the present invention

도 4는 본 발명에 의한 스크류 장치의 사용상태를 보인 예시도Figure 4 is an exemplary view showing a state of use of the screw device according to the present invention

도 5는 본 발명에 의해서 접지봉 및 접지저감제가 매립된 예시도 5 is an exemplary view in which the ground rod and the ground reducing agent are embedded in the present invention.

***도면의 중요부분에 대한 부호의 설명****** Explanation of symbols for important parts of drawing ***

1: 스크류1: screw

2: 접지봉 대기실2: ground rod waiting room

3: 육각연결구3: hexagonal connector

10: 고정브라켓10: fixing bracket

11: 접지저감제 유입관11: ground reducer inlet pipe

12: 고정구12: fixture

20: 연결유닛20: connecting unit

21: 사각축공21: Square Shaft

Claims (1)

지중에 구멍을 천공하고 스크류의 중심에는 지중에 매설되는 접지봉을 수용할 수 있는 접지봉 대기실(2)과 그 상부에는 연결유닛에 결합하기 위한 육각연결구(3)로 구성된 스크류(1)와,A screw (1) consisting of a ground rod waiting room (2) for drilling holes in the ground and a ground rod (2) for accommodating ground rods buried in the ground, and a hexagonal connector (3) for coupling to a connecting unit at the top thereof; 상기 스크류(1)를 구성하는 육각연결구(3)에 결합되는 육각봉(30)과 접지저감제 공급을 위한 통로(22) 및 유압회전장치의 회전축이 결합되도록 사각축공(21)이 형성된 연결유닛(20), 및 접지저감제 유입관(11) 및 고정구(12)가 구비된 고정하우징(10)으로 구성됨을 특징으로 하는 접지봉 매립 및 접지저감제 투입을 위한 천공용 스크류 장치.Connection unit formed with a square shaft hole 21 is coupled to the hexagonal rod 30 is coupled to the hexagonal connector (3) constituting the screw (1) and the passage 22 for supplying the ground reducing agent and the rotary shaft of the hydraulic rotating device (20), and a grounding screw embedded device for earthing rod embedding and grounding reducing agent, characterized in that it consists of a fixed housing (10) equipped with a grounding reducing agent inlet pipe (11) and a fixture (12).
KR1020080035987A 2008-04-18 2008-04-18 Boring screw device for earthing bar reclamation and ground connection reduction stuff injection KR100958536B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080035987A KR100958536B1 (en) 2008-04-18 2008-04-18 Boring screw device for earthing bar reclamation and ground connection reduction stuff injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080035987A KR100958536B1 (en) 2008-04-18 2008-04-18 Boring screw device for earthing bar reclamation and ground connection reduction stuff injection

Publications (2)

Publication Number Publication Date
KR20090110467A true KR20090110467A (en) 2009-10-22
KR100958536B1 KR100958536B1 (en) 2010-05-18

Family

ID=41538313

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080035987A KR100958536B1 (en) 2008-04-18 2008-04-18 Boring screw device for earthing bar reclamation and ground connection reduction stuff injection

Country Status (1)

Country Link
KR (1) KR100958536B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101358569B1 (en) * 2013-03-11 2014-02-11 이수규 Midair ground connection steel bar, wrong using ground resistance that domination injection device and midair ground connection steel bar and ground resistance that domination same time laying form of construction work

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210079690A (en) 2019-12-20 2021-06-30 한국전력공사 Earth bar laying device
KR102389464B1 (en) 2020-06-01 2022-04-21 이수규 Construction Method of Ground Resistance Reduction Agent Using Ground Resistance Reducing Agent Injection Tool

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4360580B2 (en) 2000-05-01 2009-11-11 日本地工株式会社 Self-piercing earth electrode
KR100668121B1 (en) 2005-05-31 2007-01-11 정재경 Appratus and method for drive a earth-rod into the ground
KR100772211B1 (en) 2006-02-13 2007-10-31 김상균 An earthing device fore reducing surge and constructing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101358569B1 (en) * 2013-03-11 2014-02-11 이수규 Midair ground connection steel bar, wrong using ground resistance that domination injection device and midair ground connection steel bar and ground resistance that domination same time laying form of construction work

Also Published As

Publication number Publication date
KR100958536B1 (en) 2010-05-18

Similar Documents

Publication Publication Date Title
KR101367099B1 (en) Excavating screw for auger crane and backhoe having camera for locating buried objects
US20150153036A1 (en) Lighting system for drilling rig
KR100958536B1 (en) Boring screw device for earthing bar reclamation and ground connection reduction stuff injection
KR101592008B1 (en) System applied construction method of grounding a distributionline
JP2011258529A (en) Grounding electrode of grounding resistance reducer injection method and grounding construction method using the same
KR20070017225A (en) The multi angle boring machine attached to a excavator and its excavating method of under the ground
KR101358569B1 (en) Midair ground connection steel bar, wrong using ground resistance that domination injection device and midair ground connection steel bar and ground resistance that domination same time laying form of construction work
KR101407855B1 (en) The street lamp fundamental unit
KR100413112B1 (en) Method of construction for grounding a distribution line
CN103779824A (en) Photovoltaic solar building lightning protection facility construction method
KR101666175B1 (en) Connecting structure for preventing separation of subterranean line
JPH08158771A (en) Screw earth auger device
JP2010146938A (en) Ground electrode and method for constructing the same
JP4463867B2 (en) Mechanized construction method for branch line root and extended excavation unit for auger crane for this purpose
KR100940172B1 (en) The ground rod installation method without digging
CN207530121U (en) A kind of earthing or grounding means for petroleum works
KR200410657Y1 (en) device of fixing a utility pole
WO2008143421A1 (en) A ground rod structure with drills blade shape
KR101028145B1 (en) Digging apparatus equipped with sensing device for protecting underground cable
CN201011157Y (en) Low power imbedded driven well house for farm irrigation
CN214373498U (en) Civil engineering detects uses raw materials sampling device
KR0127276Y1 (en) Apparatus for laying water pipes in a vinyl house
KR100668121B1 (en) Appratus and method for drive a earth-rod into the ground
CN215482547U (en) High car stopping structure of security
KR102389464B1 (en) Construction Method of Ground Resistance Reduction Agent Using Ground Resistance Reducing Agent Injection Tool

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130219

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20140227

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20150512

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20160502

Year of fee payment: 7

LAPS Lapse due to unpaid annual fee