KR102278685B1 - Earthing Bolt - Google Patents

Earthing Bolt Download PDF

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Publication number
KR102278685B1
KR102278685B1 KR1020190084981A KR20190084981A KR102278685B1 KR 102278685 B1 KR102278685 B1 KR 102278685B1 KR 1020190084981 A KR1020190084981 A KR 1020190084981A KR 20190084981 A KR20190084981 A KR 20190084981A KR 102278685 B1 KR102278685 B1 KR 102278685B1
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South Korea
Prior art keywords
drill
substrate
head
penetrating
bolt
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KR1020190084981A
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Korean (ko)
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KR20210008966A (en
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김인식
강혜영
신민철
김연호
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김인식
강혜영
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Priority to KR1020190084981A priority Critical patent/KR102278685B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/041—Specially-shaped shafts
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

이 출원 발명은 선박 또는 해양구조물과 같은 대형의 구조물에 있어, 그 구조체를 이루는 철판 등의 기재에 관통공을 형성하는 단계 및 용접하는 단계를 생략하도록 하여 기재를 관통하지 않고 드릴링 과정과 접지볼트의 체결과정을 하나의 공정으로 가능하도록 하여 공정단계를 간단히 하여 접지볼트 체결작업 용이성을 향상시키고, 용접 작업에 따르는 폭팔사고 등의 위험성을 제거하는 목적을 달성하기 위하여, 이 출원 발명의 무관통 접지볼트는 머리부와 몸체부, 드릴부로 이루어지고 기재를 관통하지 않고 체결 고정되며, 이때, 무관통 접지볼트를 구성하는 머리부와 몸체부, 드릴부는 각각 별도로 형성되는 것을 특징으로 한다.In the invention of this application, in a large structure such as a ship or an offshore structure, the step of forming a through-hole in a substrate such as an iron plate constituting the structure and the welding step are omitted so that the drilling process and the ground bolt are not penetrated through the substrate. In order to achieve the purpose of improving the easiness of fastening the ground bolt by simplifying the process step by making the fastening process possible in one process, and eliminating the risk of explosion accidents caused by welding work, the ground bolt without penetration of the present invention is composed of a head, a body, and a drill, and is fastened and fixed without penetrating the substrate, wherein the head, body, and drill part constituting the non-penetrating ground bolt are formed separately.

Description

무관통 접지볼트{Earthing Bolt}No-Through Ground Bolt {Earthing Bolt}

본 발명은 선박, 해양구조물 등의 대형 구조물에 사용되는 접지볼트에 관한 것으로써, 접지볼트를 구성하는 각각의 구성을 따로 형성하여 각 구성간의 결합방법을 달리하여, 선박, 해양구조물 등의 대형 구조물을 구성하는 철판을 관통하거나 용접하지 않고, 철판에 결합되는 접지볼트에 관한 발명이다The present invention relates to a grounding bolt used in large structures such as ships and offshore structures, and by forming each component constituting the grounding bolt separately and varying the coupling method between each component, large structures such as ships and offshore structures It is an invention related to a grounding bolt that is coupled to a steel plate without penetrating or welding the steel plate constituting the

선박, 해양구조물 등의 대형 구조물을 형성하는 철판(이하 '기재' 라 한다.) 등에 사용되는 접지볼트에 관한 선행기술로는 공개특허 제20-2013-0005990호 "어스 조립체" (특허문헌 1)와 공개특허 제20-2018-0001280 "접지용 볼트 너트 조립체"(특허문헌 2) 등이 있다.As a prior art regarding a grounding bolt used for iron plates (hereinafter referred to as 'substrates') forming large structures such as ships and offshore structures, Patent Publication No. 20-2013-0005990 "Earth Assembly" (Patent Document 1) and Unexamined Patent Publication No. 20-2018-0001280 "Engineering bolt nut assembly" (Patent Document 2) and the like.

상기 특허문헌 1은 선박 등에 접촉되는 스터드부가 선박등의 기재에 기 형성된 홈에 끼움 되거나 용접되어 결합되는 것으로, 관통공을 형성하거나 용접하는 단계를 더 구비하는 점에서 공정이 복잡해지고, 이로 인해 인건비가 상승하는 단점이 있을 뿐만 아니라, 선박, 해양구조물 등에서의 용접작업은 항상 폭발 사고의 위험성이 존재하여, 시공에 주의를 필요로 하는 문제점이 있다.In Patent Document 1, the stud part in contact with a ship is fitted or welded to a groove formed in a base material of a ship, etc., and the process is complicated in that it further includes the step of forming or welding a through hole, and this makes the process complicated. In addition to the disadvantage of rising, welding work in ships, offshore structures, etc. always has a risk of an explosion accident, so there is a problem that requires attention in construction.

또한, 특허문헌 2는 선박 등의 기재를 관통하여 형성되는 접지용 볼트너트 조립체에 관한 것으로, 볼트 너트를 체결하기 위하여 기재에 관통공을 형성하는 단계가 선행되어야 하며, 선박 및 해양구조물의 경우에는 기재가 두꺼운 경우가 많아 관통공을 형성하는 것이 곤란한 경우가 생기므로 기재를 관통하여 형성되는 접지용 볼트너트의 경우에는 기재의 두께 등에 따라 시공부위 및 장소에 제한이 있는 단점이 있다.In addition, Patent Document 2 relates to a bolt nut assembly for grounding that is formed through a substrate such as a ship. In order to fasten the bolt nut, the step of forming a through hole in the substrate should be preceded, and in the case of ships and offshore structures, Since the base material is often thick, it may be difficult to form a through hole. Therefore, in the case of a grounding bolt nut formed through the base material, there is a limitation in the construction site and location depending on the thickness of the base material.

(특허문헌 0001) 공개특허 제20-2013-0005990호 "어스 조립체"(Patent Document 0001) Patent Publication No. 20-2013-0005990 "Earth Assembly" (특허문헌 0002) 공개특허 제20-2018-0001280 "접지용 볼트 너트 조립체"(Patent Document 0002) Patent Publication No. 20-2018-0001280 "Engineering bolt nut assembly"

본 발명의 선박 또는 해양구조물과 같은 대형의 구조물에 있어, 그 구조체를 이루는 철판 등의 기재에 관통공을 형성하는 단계 및 용접하는 단계를 생략하도록 하여 기재를 관통하지 않고 드릴링 과정과 접지볼트의 체결과정을 하나의 공정으로 가능하도록 하여 공정단계를 간단히 하여 접지볼트 체결작업 용이성을 향상시키고, 용접 작업에 따르는 폭발 사고 등의 위험성을 제거하는 것을 목적으로 한다.In the large-scale structure such as a ship or offshore structure of the present invention, the step of forming a through-hole in the base material such as an iron plate constituting the structure and the welding step are omitted so that the drilling process and the ground bolt are not penetrated through the base material. The purpose of the process is to simplify the process step by making the process possible as a single process, improve the ease of fastening the ground bolt, and eliminate the risk of explosion accidents caused by welding work.

본 발명은 상기 과제를 해결하기 위한 수단으로서 다음과 같은 과제해결 수단을 구비한다.The present invention is provided with the following problem solving means as means for solving the above problems.

본 발명의 무관통　접지볼트는 머리부와　몸체부,　드릴부로 이루어지고 기재를 관통하지 않고 체결 고정된다.The non-penetrating 　 grounding bolt of the present invention consists of a head, a 　 body, and a 　 drill part, and is fastened and fixed without penetrating the base.

이때, 무관통　접지볼트를 구성하는 머리부와　몸체부,　드릴부는 각각 별도로 형성된다.At this time, the head part, the body part, and the drill part constituting the no-penetration 　 ground bolt are formed separately.

무관통 접지볼트의 머리부는 일측에는 암나사부가 형성되고, 몸체부는 접지부와 기재 밀착부, 기재밀착 수나사부로 이루어지며, 몸체부의 중심을 관통하여 형성되는 관통부가 형성된다.The head of the non-penetrating ground bolt has a female threaded portion formed on one side, and the body portion is composed of a grounding portion, a substrate adhesion portion, and a substrate adhesion male thread portion, and a penetrating portion formed through the center of the body portion is formed.

무관통 접지볼트의 드릴부는 수나사부와 관통축부, 드릴 절삭날부로 형성되며, 드릴부의 관통축부가 몸체부의 관통부를 관통하고, 수나사부가 머리부의 암나사부에 나사 체결되어 일체로 결합된다.The drill part of the non-penetrating ground bolt is formed of a male thread part, a through shaft part, and a drill cutting edge part, the through shaft part of the drill part penetrates the penetration part of the body part, and the male thread part is screwed to the female thread part of the head part and is integrally coupled.

몸체부의 기재밀착 수나사부에는 몸체부가 체결된 방향과 반대방향으로 풀리는 것을 방지하기 위하여 나사산의 일측에　일방향　걸림돌기가 형성된다.In order to prevent loosening in the opposite direction to the direction in which the body part is fastened, a locking projection is formed on one side of the screw thread on the male threaded part for adhesion to the body.

본 발명은 선박 또는 해양구조물과 같은 대형의 구조물에 있어, 그 구조체를 이루는 철판 등의 기재에 관통공을 형성하는 단계 및 용접하는 단계를 생략하도록 하여 기재를 관통하지 않고 드릴링 과정과 접지볼트의 체결과정을 하나의 공정으로 가능하도록 하여 공정단계를 간단히 하여 접지볼트 체결작업 용이성을 향상시키고, 용접 작업에 따르는 폭발 사고 등의 위험성을 제거할 수 있는 효과를 얻을 수 있다.In the present invention, in a large structure such as a ship or an offshore structure, the step of forming a through-hole in a substrate such as an iron plate constituting the structure and the welding step are omitted so that the drilling process and the grounding bolt are not penetrated through the substrate. By making the process possible as a single process, it is possible to simplify the process steps to improve the easiness of the ground bolt fastening operation, and to obtain the effect of eliminating the risk of an explosion accident caused by the welding operation.

제1도 본 발명의 무관통 접지볼트의 분해 사시도
제2도 본 발명의 무관통 접지볼트의 분해 사시도
제3도 본 발명의 무관통 접지볼트의 결합 사시도
제4도 본 발명의 무관통 접지볼트의 결합 사시도
제5도 본 발명의 일방향 걸림돌기가 형성된 무관통 접지볼트1 is an exploded perspective view of the non-penetrating ground bolt of the present invention
2 is an exploded perspective view of the non-penetrating ground bolt of the present invention
3 is a combined perspective view of the non-penetrating ground bolt of the present invention
4 is a combined perspective view of the non-penetrating ground bolt of the present invention
5 is a non-penetrating grounding bolt having a one-way locking protrusion of the present invention

이하, 첨부한 도면을 참고로 하여 본 발명의 실시예에 대하여 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세히 설명한다. 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시예에 한정되지 않는다.Hereinafter, with reference to the accompanying drawings, the embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

본 발명을 명확하게 설명하기 위해서 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 동일 또는 유사한 구성요소에 대해서는 동일한 참조 부호를 붙이도록 한다.In order to clearly explain the present invention, parts irrelevant to the description are omitted, and the same reference numerals are given to the same or similar elements throughout the specification.

또한, 도면에서 나타난 각 구성의 크기 및 두께는 설명의 편의를 위해 임의로 나타내었으므로, 본 발명이 반드시 도시된 바에 한정되지 않는다.In addition, since the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, the present invention is not necessarily limited to the illustrated bar.

또한, 명세서 전체에서, 어떤 부분이 어떤 구성요소를 "포함" 한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함할 수 있는 것을 의미한다.In addition, throughout the specification, when a part "includes" a certain component, this means that other components may be further included, rather than excluding other components, unless otherwise stated.

본 발명은 선박 또는 해양구조물에 사용되는 무관통 접지볼트에 관한 발명이다.The present invention relates to a non-penetrating ground bolt used in a ship or an offshore structure.

먼저, 본 발명의 무관통 접지볼트는 머리부(100)와 몸체부(200), 드릴부(300)로 이루어진다.First, the non-penetrating ground bolt of the present invention consists of a head part 100 , a body part 200 , and a drill part 300 .

이때, 머리부(100)와 몸체부(200), 드릴부(300)는 각각 별도로 형성되고, 머리부(100)는 일측에는 암나사부(120)가 형성된다.At this time, the head part 100, the body part 200, and the drill part 300 are respectively formed separately, and the head part 100 is formed with a female screw part 120 on one side.

몸체부(200)은 접지부(210)와 기재 밀착부(220), 기재밀착 수나사부(230)로 이루어지며, 몸체부(200)의 중심을 관통하여 형성되는 관통부(240)가 형성된다.The body part 200 is composed of a grounding part 210 , a base adhesion part 220 , and a base adhesion external screw part 230 , and a penetrating part 240 formed through the center of the body part 200 is formed. .

드릴부(300)는 수나사부(310)와 관통축부(320), 드릴 절삭날부(330)로 형성된다.The drill part 300 is formed of a male screw part 310 , a through shaft part 320 , and a drill cutting edge part 330 .

드릴부(300)의 관통축부(320)가 몸체부(200)의 관통부(240)를 관통하고, 수나사부(310)가 머리부(100)의 암나사부(120)에 나사 체결되어 결합된다.The through shaft portion 320 of the drill unit 300 passes through the through portion 240 of the body portion 200 , and the male screw portion 310 is screwed to and coupled to the female screw portion 120 of the head portion 100 . .

드릴부(300)의 관통축부(320)가 몸체부(200)의 관통부(240)를 관통하고, 수나사부(310)가 머리부(100)의 암나사부(120)에 나사 체결되어 일체로 결합하는 반면, 몸체부(200)는 드릴부(300)의 관통축부(320)에 밀착되어 끼움결합은 되나, 드릴부(300) 및 머리부와 일체로 체결되지 않으므로써, 토크렌치(미도시)등의 공지의 체결공구로 머리부(100)를 회전시키면 일체로 결합된 드릴부(300)의 드릴 절삭날부(330)가 기재를 절삭하며 파고들고, 일정깊이로 파고들게 되면, 몸체부(200)의 가재밀착 수나사부(230)가 관통된 구멍에 회전하며 안착되어 기재에 밀착되게 된다.The through shaft part 320 of the drill part 300 penetrates the through part 240 of the body part 200 , and the male thread part 310 is screwed to the female thread part 120 of the head part 100 to be integrated. On the other hand, the body part 200 is fitted in close contact with the through shaft part 320 of the drill part 300, but is not integrally fastened with the drill part 300 and the head part, so a torque wrench (not shown) When the head 100 is rotated with a known fastening tool such as ), the drill cutting edge 330 of the drill unit 300 integrally coupled cuts and digs into the substrate, and when digging to a certain depth, the body part ( 200) is rotated and seated in the through-hole in which the crayfish adhesion male screw part 230 is in close contact with the substrate.

이를 가능하게 하기 위해서는 드릴부(300)와 몸체부(200)의 회전속도가 달라야 하므로, 드릴부(300)와 몸체부(200)가 일체로 결합되어 동일한 회전속도로 회전하지 못하도록 각각 형성되어 밀착되도록 끼움 결합되므로써, 토크렌트 등으로 드릴부(300)와 머리부(100)를 기재에 밀착시키며 회전시키는 초기에는 몸체부(200)가 드릴부(300)의 관통축부(320)에 밀착되어 있으므로 거의 동일한 회전속도로 따라 회전하다가, 몸체부(200)의 기재밀착 수나사부(230)가 기재에 접촉되면서부터 드릴부(300)의 회전속도보다 줄어들게 되고, 기재밀착 수나사부(230)가 기재에 회전하며 파고들어 안착하여 기재와 결합하게 된다.In order to make this possible, since the rotational speed of the drill part 300 and the body part 200 should be different, the drill part 300 and the body part 200 are integrally coupled to each other so that they do not rotate at the same rotational speed and are closely adhered to each other. Since the body part 200 is in close contact with the through-shaft part 320 of the drill part 300 at the initial stage of rotating the drill part 300 and the head part 100 in close contact with the base material by using a torquerent etc. While rotating at approximately the same rotational speed, as the base material adhesion male screw part 230 of the body 200 comes into contact with the base material, the rotation speed of the drill part 300 decreases, and the base material adhesion male screw part 230 is attached to the base material. It rotates and digs and settles down to bond with the substrate.

드릴부(300)와 머리부(100)를 토크렌치 등으로 1차적으로 회전하여 기재밀착 수나사부(230)이 안착되는 통공을 형성한 후, 기재밀착 수나사부(230)를 2차적으로 토크렌치 등으로 회전시켜 몸체부(200)가 기재에 더욱 밀착될 수 있도록 하기 위하여 몸체부(200)의 기재 밀착부(220)의 평면형상은 토크렌치의 소켓의 형상에 따라 다각형 등의 형상으로 형성될 수 도 있다.After the drill part 300 and the head part 100 are first rotated with a torque wrench, etc. to form a through hole in which the base material adhesion male screw part 230 is seated, the base material adhesion male screw part 230 is secondarily rotated with a torque wrench In order to rotate the body part 200 to be more closely attached to the base material by rotating it with the like, the planar shape of the base material adhesion part 220 of the body part 200 may be formed in a polygonal shape according to the shape of the socket of the torque wrench. can also

선박, 해양구조물 등에 시공되는 접지볼트는 기재와 충분히 밀착되어 충분한 접지효과가 발현되면 되므로, 접지볼트의 결착강도는 외부 충격에 의해 기재로부터 탈락되는 것만 방지되는 정도로 충분하므로, 이 출원 발명의 몸체부에 형성된 기재 밀착 수나사부(230)가 드릴부(300)의 회전속도보다 줄어들어 충분히 밀착되는 정도로 접지 효과는 충분히 얻을 수 있는 것이다.Since the grounding bolt to be installed on a ship, offshore structure, etc. is in close contact with the base material and sufficient grounding effect is expressed, the binding strength of the grounding bolt is sufficient to prevent only falling off from the base material due to external impact. The grounding effect can be sufficiently obtained to such an extent that the base material adhesion male screw portion 230 formed on the substrate is sufficiently closely contacted by reducing the rotational speed of the drill portion 300 .

이때, 드릴부(300)가 파고드는 일정깊이가 깊어지면 기재에 균열이 일어날 가능성이 증가하므로, 드릴부(300)가 파고드는 일정깊이는 기재의 70%를 초과하지 않도록 드릴부(300)의 드릴 절삭날부(330)로부터 몸체부(200)의 기재 밀착부(220)까지의 길이는 기재의 70%를 초과하지 않도록 형성되는 것이 바람직하다.At this time, since the probability of cracking in the substrate increases when the drill part 300 digs deeper into a certain depth, the drill part 300 does not exceed 70% of the base so that the drill part 300 digs to a certain depth does not exceed 70% of the base material. It is preferable that the length from the drill cutting edge portion 330 to the substrate adhesion portion 220 of the body portion 200 does not exceed 70% of the substrate.

실제로 이 출원 발명의 무관통 접지볼트를 선박의 기재에 시공했을 때, 몸체부(200)가 드릴부(300)의 관통축부(320)에 끼움되어 기재에 충분히 밀착되기 위해서는, 도면 3 및 4와 같이 관통축부(320)의 길이가 몸체부의 길이보다 길게 형성되는 것이 바람직하고, 그 길이는 2~4mm 정도 일 때, 구체적으로는 약 4mm 일 때, 충분한 결착강도를 얻을 수 있었다.In fact, when the non-penetrating ground bolt of the invention of this application is constructed on the substrate of a ship, the body 200 is fitted in the through-shaft portion 320 of the drill unit 300 to sufficiently closely adhere to the substrate, as shown in FIGS. 3 and 4 and Likewise, it is preferable that the length of the through shaft portion 320 is longer than the length of the body portion, and when the length is about 2 to 4 mm, specifically, when the length is about 4 mm, sufficient binding strength can be obtained.

몸체부(200)의 기재밀착 수나사부(230)의 길이 역시 너무 길면 기재를 파고들어 안착되는 시공성능이 떨어지므로, 그 길이가 2~4mm 정도 일 때, 구체적으로는 약 4mm 일 때, 시공성능 및 결착강도가 제일 높았다.If the length of the base material adhesion male screw part 230 of the body part 200 is also too long, the construction performance of digging into the base material and seated decreases, so when the length is about 2 to 4 mm, specifically, when the length is about 4 mm, the construction performance and binding strength was the highest.

이러한 수치는 몸체부(200)와 머리부(100)와 드릴부(300)의 재질에 따라서도 영향을 받으며, 드릴부(300)는 재질의 경도가 낮아지면, 재질의 무름도가 커져 기재를 파고드는 드릴 성능이 떨어지므로, 드릴부(300)의 경도는 몸체부의 경도와 같거나 그보다 높은 재질로 형성되는 것이 바람직하다.These figures are also affected by the material of the body 200, the head 100, and the drill part 300, and the drill part 300, when the hardness of the material is lowered, the softness of the material increases, Since the drilling performance is poor, the hardness of the drill part 300 is preferably formed of a material equal to or higher than the hardness of the body part.

결착강도를 향상시키고, 몸체부(200)가 체결된 방향과 반대방향으로 풀리는 것을 방지하기 위하여 몸체부(200)의 기재밀착 수나사부(230)에는 나사산의 일측에 일방향 걸림돌기(231)를 형성할 수도 있다.In order to improve the bonding strength and prevent the body 200 from being loosened in the opposite direction to the direction in which the body part 200 is fastened, a one-way locking protrusion 231 is formed on one side of the screw thread in the base material adhesion male screw part 230 of the body part 200. You may.

아울러, 선박 및 해양구조물의 사용환경을 고려하여, 습기 등이 접촉되는 것을 방지하기 위하여 몸체부(200)의 기재 밀착부(220)와 기재 사이의 수밀패킹 안착부(250)에 수밀패킹이 구비되거나(미도시), 접지볼트를 시공한 후에 머리부(100)와 몸체부(200)의 접지부(210)를 덮는 실리콘 캡을 구비할 수도 있다(미도시).In addition, in consideration of the use environment of ships and offshore structures, a watertight packing is provided in the watertight packing seating part 250 between the base material adhesion part 220 of the body part 200 and the base material in order to prevent contact with moisture, etc. Alternatively (not shown), a silicone cap covering the grounding portion 210 of the head portion 100 and the body portion 200 may be provided after the grounding bolt is installed (not illustrated).

상술한 바와 같이 본 발명은 비록 한정된 실시예에 의해 설명되었으나, 본 발명은 이것에 한정되지 않으며 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술사상과 아래에 기재될 특허청구범위의 균등범위 내에서 다양한 수정 및 변형이 가능하다 할 것이다.As described above, although the present invention has been described by way of limited embodiments, the present invention is not limited thereto, and the technical idea of the present invention and patents to be described below by those skilled in the art to which the present invention pertains Various modifications and variations are possible within the scope of equivalents of the claims.

머리부(100),볼트부(110),암나사부(120),
몸체부(200), 접지부(210), 기재 밀착부(220), 기재밀착 수나사부(230),일방향　걸림돌기(231), 관통부(240), 수밀패킹　안착부(250)
드릴부(300), 수나사부(310), 관통축부(320), 드릴　절삭날부(330)Head part 100, bolt part 110, female thread part 120,
Body portion 200, ground portion 210, substrate adhesion portion 220, substrate adhesion male screw portion 230, one-way locking projection 231, penetration portion 240, watertight packing seating portion 250
Drill part 300 , male thread part 310 , through shaft part 320 , drill cutting edge part 330 .

Claims (4)

머리부(100)와 몸체부(200), 드릴부(300)가 일체로 이루어져 기재를 관통하지 않고 체결 고정되는 무관통 접지볼트에 있어서,
상기 머리부(100);와 몸체부(200); 드릴부(300);는 각각 별도로 형성되고,
상기 머리부(100)는 볼트부(110)와 암나사부(120);가 형성되며,
상기 몸체부(200)는 접지부(210);와 기재 밀착부(220); 수나사부(230); 몸체부(200)의 중심을 관통하여 형성되는 관통부(240)가 형성되고,
상기 드릴부(300)는 수나사부(310);와 관통축부(320); 드릴 절삭날부(330);를 구비하여 이루어지되,
상기 드릴부(300)는 관통축부(320)가 몸체부(200)의 관통부(240)를 관통하여, 상기 드릴부(300)의 수나사부(310)가 머리부(100)의 암나사부(120)에 나사 체결되어 일체로 결합되어, 드릴부(300)와 머리부(100)는 체결공구의 회전에 의해 일체로 동일속도로 회전될 수 있도록 결합되는 반면,
상기 몸체부(200)는 드릴부(300)의 관통축부(320)에 몸체부의 관통부(240)가 끼움되어 밀착하여 결합되어, 체결공구의 회전에 의해 상기 드릴부(300)와 머리부(100)가 회전할 때, 함께 회전하다가, 몸체부(200)의 수나사부(230)가 기재에 접촉되면서부터 드릴부(300)와 머리부(100)의 회전속도보다 줄어들게 되고, 수나사부(230)가 기재에 회전하며 안착하여 기재와 결합되는 것을 특징으로 하는 무관통 접지볼트.In the non-penetrating grounding bolt in which the head part 100, the body part 200, and the drill part 300 are integrally formed and fastened and fixed without penetrating the substrate,
The head part 100; and the body part 200; Drill part 300; are each formed separately,
The head part 100 is formed with a bolt part 110 and a female thread part 120;
The body portion 200 includes a ground portion 210; and a substrate adhesion portion 220; male thread part 230; A penetrating portion 240 formed through the center of the body portion 200 is formed,
The drill part 300 includes a male screw part 310; and a through shaft part 320; Doedoe provided with a drill cutting edge portion 330;
In the drill part 300 , the through shaft part 320 penetrates the through part 240 of the body part 200 , and the male thread part 310 of the drill part 300 is the female thread part of the head part 100 ( 120) is screwed into one body, and the drill part 300 and the head part 100 are coupled to be integrally rotated at the same speed by the rotation of the fastening tool, whereas
The body portion 200 is coupled to the through shaft portion 320 of the drill portion 300 by fitting the through portion 240 of the body portion in close contact with the drill portion 300 and the head portion ( When 100) rotates, while rotating together, the rotational speed of the drill part 300 and the head part 100 is reduced from when the male screw part 230 of the body 200 comes into contact with the substrate, and the male screw part 230 ) is rotated and seated on the substrate and coupled with the substrate. 삭제delete 삭제delete 청구항 1에 있어서,
몸체부(200)의 수나사부(230)에는 나사산의 일측에 일방향 걸림돌기(231)를 형성하여 몸체부가 체결된 방향과 반대방향으로 풀리는 것을 방지하는 무관통 접지볼트.The method according to claim 1,
The male screw 230 of the body 200 has a one-way locking protrusion 231 on one side of the screw thread to prevent loosening in the opposite direction to the direction in which the body is fastened.
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