KR20120105129A - Extended anchor bolt - Google Patents

Extended anchor bolt Download PDF

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Publication number
KR20120105129A
KR20120105129A KR1020110022727A KR20110022727A KR20120105129A KR 20120105129 A KR20120105129 A KR 20120105129A KR 1020110022727 A KR1020110022727 A KR 1020110022727A KR 20110022727 A KR20110022727 A KR 20110022727A KR 20120105129 A KR20120105129 A KR 20120105129A
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KR
South Korea
Prior art keywords
sleeve
expansion
extension
anchor bolt
expansion sleeve
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KR1020110022727A
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Korean (ko)
Inventor
김원일
백승훈
하종인
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김원일
하종인
백승훈
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Priority to KR1020110022727A priority Critical patent/KR20120105129A/en
Publication of KR20120105129A publication Critical patent/KR20120105129A/en

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E02D5/801—Ground anchors driven by screwing
    • 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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
    • F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
    • F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
    • F16B13/068—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like expanded in two or more places

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Dowels (AREA)

Abstract

PURPOSE: An expandable anchor bolt is provided to secure the joining force of the conical expandable member of a cylindrical expansion sleeve joined with the inner surface of an anchor bolt hole. CONSTITUTION: An expandable anchor bolt comprises a cylindrical expandable sleeve(30), a second expandable sleeve(40), and a sleeve expandable nut(50). The cylindrical expandable sleeve comprises a guide groove(32) cut in longitudinal direction. The cylindrical expandable sleeve is joined with the anchor bolt. The second expandable sleeve is joined with the threaded portion(12) of the anchor bolt. The sleeve expandable nut is joined with a nut portion in which the cylindrical expandable sleeve and the second expandable sleeve joined. The sleeve expandable nut and the second expandable sleeve expand the conical expandable member of the cylindrical expansion sleeve.

Description

확장형 앵커볼트{Extended anchor bolt}Extended anchor bolt

본 발명은 천정 및 벽면에 장착할 수 있는 확장형 앵커볼트에 관한 것으로, 더욱 상세하게는 볼트에 원통형확장슬리브가 결합되고, 또한 볼트의 사사부에 슬리브확장너트가 체결되어 볼트의 조임방향의 회전에 따라서 슬리브확장너트가 원통형확장슬리브를 확장하도록 하는 앵커볼트에 있어서, 상기 원통형확장슬리브와 슬리브확장너트의 사이에 슬리브확장너트에 의하여 확장되는 제2확장슬리브이 결합되도록 하여, 볼트의 조임방향의 회전에 따라서 슬리브확장너트가 제2확장슬리브의 원추형확장부가 앵커볼트구멍에 확장 유지되어, 앵커볼트가 유지 고정될 수 있도록 하고, 또한, 볼트의 조임이 더 허락되는 경우 상기 제2확장슬리브가 원통형확장슬리브의 원추형확장부가 앵커볼트구멍에 확장 유지되도록 함으로써, 앵커볼트가 확장슬리브들에 의하여 1단 또는 다단으로 유지 고정되어 앵커볼트구멍의 직경에 따라서 확장 유지되어 견고하게 유지 고정될 수 있는 확장형 앵커볼트에 관한 것이다. The present invention relates to an expandable anchor bolt that can be mounted on a ceiling and a wall, and more particularly, a cylindrical expansion sleeve is coupled to a bolt, and a sleeve extension nut is fastened to a threaded portion of the bolt to rotate in the tightening direction of the bolt. Therefore, in the anchor bolt for the sleeve extension nut to extend the cylindrical expansion sleeve, the second expansion sleeve that is extended by the sleeve expansion nut is coupled between the cylindrical expansion sleeve and the sleeve expansion nut, the rotation of the bolt in the tightening direction Accordingly, the sleeve extension nut is extended and held by the conical extension portion of the second expansion sleeve to the anchor bolt hole, so that the anchor bolt can be held and fixed, and the second expansion sleeve is cylindrical expansion sleeve when the bolt is further tightened. Of the anchor bolt to the expansion sleeve It is related to the expansion-type anchor bolt that can be fixed and maintained firmly in one step or multi-stage is extended and maintained according to the diameter of the anchor bolt hole.

본 출원인은 확장형 앵커볼트에 대하여 대한민국 특허출원을 제안한 바 있다. 앞서 제안한 확장형 앵커볼트(1)는 도 1에 나타낸 바와 같이 일정길이의 볼트(10)와, 볼트(10)의 나사부(12)에 결합되는 원통형확장슬리브(30)와, 또한 상기 볼트(10)의 나사부(12)에 원통형확장슬리브(30)가 결합한 상태에서 나사부(12)에 체결되는 슬리브확장너트(50)로 구성된다. 그리고, 상기 원통형확장슬리브(30)의 플랜지턱(31)에 와셔(20)가 얹혀져 볼트(10)가 체결된다. The applicant has proposed a Korean patent application for the expandable anchor bolt. As shown in FIG. 1, the anchor bolt 1 has a predetermined length as shown in FIG. It consists of a sleeve expansion nut 50 which is fastened to the threaded portion 12 in the state in which the cylindrical expansion sleeve 30 is coupled to the threaded portion 12 of the. The washer 20 is mounted on the flange jaw 31 of the cylindrical expansion sleeve 30 to fasten the bolt 10.

상기 원통형확장슬리브(30)의 내경은 볼트(10)의 나사부(12)가 관통될 수 있는 칫수이며, 길이는 나사부(12)의 길이보다 다소 작은 칫수이다. 그리고 원통형확장슬리브(30)의 한쪽은 원통형확장슬리브(30)의 외경 보다 큰 직경의 플랜지턱(31)이 형성되어 있다.The inner diameter of the cylindrical expansion sleeve 30 is a dimension through which the threaded portion 12 of the bolt 10 can pass, and the length is a dimension smaller than the length of the threaded portion 12. One side of the cylindrical expansion sleeve 30 is formed with a flange jaw 31 having a diameter larger than the outer diameter of the cylindrical expansion sleeve 30.

또한, 다른 한쪽은 길이방향으로 절결된 가이드홈(32)이 양쪽에 형성되어, 가이드홈(32)에 후술하는 슬리브확장너트(50)의 가이드돌기(52)가 안내되어 이동가능하게 장착된다.In addition, the other side of the guide groove 32 is cut in the longitudinal direction is formed on both sides, the guide protrusion 52 of the sleeve extension nut 50 to be described later is guided to the guide groove 32 so as to be movable.

또한, 원통형확장슬리브(30)의 내경에는 내면경사면(33)이 형성되어, 이 내면경사면(33)에 후술하는 슬리브확장너트(50)의 외면경사면(51)이 슬라이드 접촉되어 이동할 수 있도록 결합된다. In addition, an inner sloping surface 33 is formed at an inner diameter of the cylindrical expansion sleeve 30, and the inner sloping surface 33 is coupled to the inner sloping surface 33 so that the outer sloping surface 51 of the sleeve extension nut 50, which will be described later, can slide and move in contact. .

상기 슬리브확장너트(50)는 그의 내경에 나사(53)가 형성되어 볼트(10)의 나사부(12)에 체결된다. 그리고 그의 외경에는 외면경사면(51)이 형성되어, 이 외면경사면(51)은 상기 원통형확장슬리브(30)의 내면경사면(33)과 결합된다.The sleeve extension nut 50 has a screw 53 formed in its inner diameter and is fastened to the threaded portion 12 of the bolt 10. An outer sloping surface 51 is formed at its outer diameter, and the outer sloping surface 51 is coupled to the inner sloping surface 33 of the cylindrical expansion sleeve 30.

또한, 외경의 한쪽 끝단의 양쪽에 가이드돌기(52)가 형성되어, 이 가이드돌기(52)는 상기 원통형확장슬리브(30)의 가이드홈(32)에 결합되어 이동가능하게 결합된다. In addition, guide protrusions 52 are formed at both ends of one end of the outer diameter, and the guide protrusions 52 are coupled to the guide grooves 32 of the cylindrical expansion sleeve 30 so as to be movable.

따라서, 도 1에서 볼트(10)에 와셔(20), 원통형확장슬리브(30) 및 슬리브확장너트(50)가 순차적으로 결합하여, 앵커볼트구멍(도시생략)에 장착한 후, 볼트(10)를 조임으로써, 볼트(10)의 나사부(12)에 슬리브확장너트(50)가 체결되면서, 슬리브확장너트(50)의 외경이 원통형확장슬리브(30)의 내경에 삽입되어, 슬리브확장너트(50)의 외면경사면(51)이 원통형확장슬리브(30)의 내면경사면(33)에 이동한다.Therefore, in FIG. 1, the washer 20, the cylindrical expansion sleeve 30, and the sleeve expansion nut 50 are sequentially coupled to the bolt 10, and then mounted in the anchor bolt hole (not shown), and then the bolt 10 is attached thereto. While tightening the sleeve extension nut 50 to the threaded portion 12 of the bolt 10, the outer diameter of the sleeve extension nut 50 is inserted into the inner diameter of the cylindrical expansion sleeve 30, the sleeve extension nut 50 The outer inclined surface 51 of) moves to the inner inclined surface 33 of the cylindrical expansion sleeve 30.

결국, 슬리브확장너트(50)가 원통형확장슬리브(30)의 원추형확장부(34)를 벌려져 앵커볼트구멍(2)의 내면에 상기 원추형확장부(34)가 억지 맞춤으로 끼워져 유지하게 되어, 앵커볼트구멍에 앵커볼트(1)가 유지 고정되게 된다. As a result, the sleeve extension nut 50 opens the conical extension portion 34 of the cylindrical expansion sleeve 30 so that the conical extension portion 34 is pressed into the inner surface of the anchor bolt hole 2 and is held in a tight fit. The anchor bolt 1 is held and fixed to the anchor bolt hole.

위와 같이 양쪽의 한쌍의 원통형확장슬리브(30)의 원추형확장부(34)가 앵커볼트구멍에 유지되어 앵커볼트를 고정할 수 있으나, 양쪽의 한쌍의 원통형확장슬리브(30)의 원추형확장부(34)에 의하여 앵커볼트구멍과의 접촉면적이 작아 원통형확장부(34)가 피로가 생기고, 또한 앵커볼트구멍이 설계치 보다 다소 큰경우에는 상기 원추형확장부(34)의 확장 각도가 커지게 됨에 따라서 더욱 더 원추형확장부(34)에 피로를 주어서 무리한 경우 원통형확장슬리브(30)의 원추형확장부(34)가 훼손되는 문제를 유발할 수 있다.Conical expansion portion 34 of the pair of cylindrical expansion sleeves 30 on both sides can be held in the anchor bolt hole to fix the anchor bolts, but conical expansion portions 34 of the pair of cylindrical expansion sleeves 30 on both sides. When the contact area with the anchor bolt hole is small, fatigue occurs in the cylindrical extension part 34, and when the anchor bolt hole is slightly larger than the design value, the expansion angle of the conical extension part 34 becomes larger. If the conical expansion portion 34 gives fatigue, it may cause a problem that the conical expansion portion 34 of the cylindrical expansion sleeve 30 is damaged.

본 발명은 상기의 문제를 해소하기 위한 것으로, 확장형앵커볼트의 나사부에 결합되어 슬리브확장너트에 의하여 확장되는 원통형확장슬리브에 부가하여 제2확장슬리브이 상기 슬리브확장너트에 의하여 확장되어 제 2확장슬리브의 원추형확장부가 확장되어 앵커볼트구멍의 내경에 확장 유지되도록 하고, 또한 원통형확장슬리브의 원추형확장부가 앵커볼트구멍의 내경에 확장 유지되도록 함으로써, 복수의 확장슬리브들의 원추형확장부가 앵커볼트구멍의 내경에 안정적으로 유지 장착될 수 있도록 함을 목적으로 한다. The present invention is to solve the above problems, in addition to the cylindrical expansion sleeve is expanded by the sleeve expansion nut coupled to the threaded portion of the expansion anchor bolts, the second expansion sleeve is extended by the sleeve expansion nut to the second expansion sleeve The conical extensions are extended and maintained in the inner diameter of the anchor bolt hole, and the conical extensions of the cylindrical expansion sleeve are maintained and expanded in the inner diameter of the anchor bolt hole, so that the conical extensions of the plurality of expansion sleeves are stable to the inner diameter of the anchor bolt holes. The purpose is to be able to maintain the mounting.

또한, 본 발명은 확장형 앵커볼트가 하나의 확장슬리브의 원추형확장부가 앵커볼트구멍에 장착되고, 또한 상기 하나의 확장슬리브가 원통형확장슬리브의 원추형확장부를 확장함에 따라서, 다소 앵커볼트구멍이 큰 직경이라도 복수의 확장슬리브의 원추형확장부들에 의하여 유지하여 원추형확장부의 각도를 많이 확장하지 않더라도 안정적으로 앵커볼트구멍에 앵커볼트를 장착할 수 있도록 됨을 목적으로 한다.
In addition, according to the present invention, as the expansion anchor bolt is mounted to the conical extension portion of one expansion sleeve in the anchor bolt hole, and the expansion sleeve is expanded to the conical extension portion of the cylindrical expansion sleeve, even though the anchor bolt hole has a larger diameter. It is intended to be able to stably mount the anchor bolt in the anchor bolt hole even if the angle of the conical extension is maintained by maintaining the conical extension of the plurality of expansion sleeves.

일정길이의 나사부에 길이방향으로 절개된 가이드홈을 가지는 확장슬리브가 결합되고, 상기 확장슬리브가 결합된 나사부에 슬리브확장너트가 결합되어, 나사부의 조임회전에 의하여 슬리브확장너트가 확장슬리브의 슬리브몸체를 바깥쪽으로 확장하는 앵커볼트에 있어서, 길이방향으로 절개된 가이드홈을 가지는 원통형확장슬리브가 결합되는 앵커볼트의 나사부에 제2확장슬리브가 결합되고, 상기 원통형확장슬리브와 제2확장슬리브가 결합된 나사부에 슬리브확장너트가 체결되어, 상기 앵커볼트의 나사부의 조임회전에 의하여 슬리브확장너트가 제2확장슬리브의 원추형확장부를 확장하고 이어서 상기 제2확장슬리브가 원통형확장슬리브의 원추형확장부를 바깥쪽으로 확장함을 기본특징으로 한다. An extension sleeve having a guide groove cut in the longitudinal direction is coupled to a thread part of a predetermined length, and a sleeve extension nut is coupled to a threaded portion to which the extension sleeve is coupled, and the sleeve extension nut is connected to the sleeve body of the extension sleeve by tightening rotation of the screw part. In the anchor bolt extending outwardly, the second expansion sleeve is coupled to the screw portion of the anchor bolt is coupled to the cylindrical expansion sleeve having a guide groove cut in the longitudinal direction, the cylindrical expansion sleeve and the second expansion sleeve is coupled The sleeve extension nut is fastened to the threaded portion, and the sleeve extension nut expands the conical extension portion of the second expansion sleeve by tightening rotation of the screw portion of the anchor bolt, and the second extension sleeve extends the conical extension portion of the cylindrical expansion sleeve to the outside. It is a basic feature.

본 발명은 원통형확장슬리브의 길이방향으로 절개된 가이드홈에 제2확장슬리브의 제2가이드돌기가 안내이동되고, 상기 제2확장슬리브에 형성한 제2가이드홈에 상기 슬리브확장너트의 가이드돌기가 안내이동되어, 슬리브확장너트가 제2확장슬리브의 원추형확장부를 확장하고 이어서 상기 제2확장슬리브가 원통형확장슬리브의 원추형확장부를 바깥쪽으로 확장되게 된다. The present invention guides the second guide projection of the second extension sleeve to the guide groove cut in the longitudinal direction of the cylindrical expansion sleeve, the guide projection of the sleeve extension nut in the second guide groove formed in the second expansion sleeve The guide extension moves the sleeve extension nut to extend the conical extension of the second expansion sleeve, which in turn extends the conical extension of the cylindrical expansion sleeve to the outside.

또한, 본 발명은 상기 원통형확장슬리브가 결합되는 앵커볼트의 나사부에 상기 복수개의 제2확장슬리브가 장착되어, 슬리브확장너트가 제2확장슬리브들의 원추형확장부를 순차적으로 확장하고 이어서 상기 제2확장슬리브들이 원통형확장슬리브의 원추형확장부를 바깥쪽으로 확장되게 된다. In addition, the present invention is the plurality of second expansion sleeve is mounted to the threaded portion of the anchor bolt to which the cylindrical expansion sleeve is coupled, the sleeve expansion nut sequentially extends the conical extension of the second expansion sleeve and then the second expansion sleeve These will extend outward from the conical extension of the cylindrical expansion sleeve.

이상과 같이, 본 발명은 볼트에 원통형확장슬리브가 결합되고, 또한 볼트의 사사부에 슬리브확장너트가 체결되어 볼트의 조임방향의 회전에 따라서 슬리브확장너트가 원통형확장슬리브를 확장하도록 하는 앵커볼트에 있어서, 상기 원통형확장슬리브와 슬리브확장너트의 사이에 슬리브확장너트에 의하여 확장되는 제2확장슬리브이 결합되도록 하여, 볼트의 조임방향의 회전에 따라서 슬리브확장너트가 제2확장슬리브의 원추형확장부가 앵커볼트구멍에 확장 유지되어, 앵커볼트가 유지 고정될 수 있도록 하고, 또한, 볼트의 조임이 더 허락되는 경우 상기 제2확장슬리브가 원통형확장슬리브의 원추형확장부가 앵커볼트구멍에 확장 유지되도록 함으로써, 앵커볼트가 확장슬리브들에 의하여 1단 또는 다단으로 유지 고정되어 앵커볼트구멍의 직경에 따라서 확장 유지되어 견고하게 유지 고정될 수 있다.As described above, the present invention is an anchor bolt to which the cylindrical expansion sleeve is coupled to the bolt, and the sleeve extension nut is fastened to the threaded portion of the bolt so that the sleeve extension nut expands the cylindrical expansion sleeve according to the rotation of the bolt in the tightening direction. The second expansion sleeve, which is extended by the sleeve expansion nut, is coupled between the cylindrical expansion sleeve and the sleeve expansion nut, so that the sleeve extension nut is conical extension portion of the second expansion sleeve in accordance with the rotation of the tightening direction of the bolt. The anchor bolt is expanded and held in the hole so that the anchor bolt can be held and fixed, and the second extension sleeve is extended and held in the anchor bolt hole by the second expansion sleeve when the bolt is further allowed. Is held in one or multiple stages by expansion sleeves, Extending the stand can be fixed firmly maintained.

도 1 은 종래의 확장형 앵커볼트의 분리 단면도,
도 2 는 본 발명의 확장형 앵커볼트의 분리 사시도,
도 3 은 본 발명의 확장형 앵커볼트의 분리 단면도,
도 4 는 본 발명의 확장형 앵커볼트를 앵커볼트구멍에 장착한 예의 단면도,
도 5 는 본 발명의 확장형 앵커볼트의 볼트를 조인상태의 단면도,
도 6 은 본 발명의 확장형 앵커볼트의 볼트를 좀 더 조인상태의 단면도,
도 7 는 본 발명의 확장형 앵커볼트의 다른 예의 사시도.
도 8 은 본 발명의 도7의 상태를 나타내어 볼트를 더 조인 상태의 단면도1 is an exploded cross-sectional view of a conventional expandable anchor bolt,
Figure 2 is an exploded perspective view of the expansion anchor bolt of the present invention,
3 is an exploded cross-sectional view of the expansion anchor bolt of the present invention,
Figure 4 is a cross-sectional view of an example of mounting the expansion anchor bolt of the present invention to the anchor bolt hole,
Figure 5 is a cross-sectional view of the bolted state of the expansion anchor bolt of the present invention,
Figure 6 is a cross-sectional view of a more tightened bolt of the expandable anchor bolt of the present invention,
7 is a perspective view of another example of the expandable anchor bolt of the present invention.
8 is a cross-sectional view showing a state of FIG. 7 of the present invention to further tighten the bolt.

본 발명의 구체적인 예를 첨부도면에 의하여 상세히 설명하면 아래와 같다.Detailed examples of the present invention will be described below with reference to the accompanying drawings.

도 2 및 도 3에 나타낸 바와 같이 본 발명의 확장형 앵커볼트(1)는 볼트(10), 와셔(20), 원통형확장슬리브(30), 제2확장슬리브(40) 및 슬리브확장너트(50)로 구성된다. As shown in FIGS. 2 and 3, the expandable anchor bolt 1 of the present invention includes a bolt 10, a washer 20, a cylindrical expansion sleeve 30, a second expansion sleeve 40, and a sleeve expansion nut 50. It consists of.

상기 볼트(10)는 머리부(11)와 나사부(12)가 형성된 일정길이의 금속재의 재질이다.The bolt 10 is made of a metal material having a predetermined length in which the head portion 11 and the screw portion 12 are formed.

상기 원통형확장슬리브(30)는 상기 볼트(10)의 나사부(12)에 결합되는 직경과 길이를 가지는 속이 빈 합성수지재이다. 또한 슬리브확장너트(50)는 상기 볼트(10)의 나사부(12)에 원통형확장슬리브(30)가 결합한 상태에서 나사부(12)의 끝단에 체결되어 나선이동하게 된다. 또한 상기 와셔(20)는 상기 원통형확장슬리브(30)의 플랜지턱(31)에 얹혀져 볼트(10)가 체결되도록 한다. The cylindrical expansion sleeve 30 is a hollow synthetic resin material having a diameter and a length coupled to the threaded portion 12 of the bolt 10. In addition, the sleeve extension nut 50 is fastened to the end of the threaded portion 12 in a state in which the cylindrical expansion sleeve 30 is coupled to the threaded portion 12 of the bolt 10 to be helically moved. In addition, the washer 20 is mounted on the flange jaw 31 of the cylindrical expansion sleeve 30 so that the bolt 10 is fastened.

본 발명의 상기 원통형확장슬리브(30)의 내경은 볼트(10)의 나사부(12)가 관통될 수 있는 칫수이며, 길이는 나사부(12)의 길이보다 다소 작은 칫수이다. 그리고 원통형확장슬리브(30)의 한쪽은 원통형확장슬리브(30)의 외경 보다 큰 직경의 플랜지턱(31)이 형성되어 있다.The inner diameter of the cylindrical expansion sleeve 30 of the present invention is a dimension through which the threaded portion 12 of the bolt 10 can be penetrated, and the length is a dimension smaller than the length of the threaded portion 12. One side of the cylindrical expansion sleeve 30 is formed with a flange jaw 31 having a diameter larger than the outer diameter of the cylindrical expansion sleeve 30.

또한, 다른 한쪽은 길이방향으로 절결된 가이드홈(32)이 양쪽에 형성되어, 가이드홈(32)에 후술하는 제2확장슬리브(40)의 제2가이드돌기(41)가 안내되어 이동가능하게 장착된다. In addition, the other side of the guide groove 32 is cut in the longitudinal direction is formed on both sides, the second guide projection 41 of the second expansion sleeve 40 which will be described later in the guide groove 32 is guided to be movable Is mounted.

또한, 원통형확장슬리브(30)의 내경에는 내면경사면(33)이 형성되어, 이 내면경사면(33)에 후술하는 제2확장슬리브(40)의 제2외면경사면(42)이 슬라이드 접촉되어 이동할 수 있도록 결합된다. In addition, an inner sloping surface 33 is formed in the inner diameter of the cylindrical expansion sleeve 30, and the inner sloping surface 33 slides in contact with the second outer sloping surface 42 of the second expansion sleeve 40 described later. To be combined.

상기 제2확장슬리브(40)는 속이 빈형상의 원통형의 합성수지재로써, 내경은 볼트(10)의 나사부(12)가 관통될 수 있는 칫수이며, 한쪽은 원통형확장슬리브(30)의 외경 보다 큰 직경이고, 대향하게 제2가이드홈(43)이 길이방향으로 절결되고, 다른 한쪽은 상기 원통형확장슬리브(30)의 가이드홈(32)에 안내이동가능한 제2가이드돌기(41)가 대향하게 형성되어 있다. The second expansion sleeve 40 is a hollow cylindrical synthetic resin material, the inner diameter is a dimension through which the threaded portion 12 of the bolt 10 can pass, one side is larger than the outer diameter of the cylindrical expansion sleeve 30 The second guide groove 43 of diameter is opposed to the second guide groove 43 in the longitudinal direction, and the other side of the guide groove 32 of the guide groove 32 of the cylindrical expansion sleeve 30 is formed to face the second guide projection (41) It is.

또한, 상기 제2확장슬리브(40)는 그의 내경에 볼트(10)의 나사부(12)에 관통되고, 그리고 그의 외경에는 제2외면경사면(42)이 형성되어, 이 제2외면경사면(42)은 상기 원통형확장슬리브(30)의 내면경사면(33)과 결합된다.In addition, the second expansion sleeve 40 penetrates the threaded portion 12 of the bolt 10 at an inner diameter thereof, and a second outer slope 40 is formed at an outer diameter thereof, and the second outer slope 42 is formed. Is coupled to the inner inclined surface 33 of the cylindrical expansion sleeve (30).

또한, 외경의 제2가이드돌기(41)는 상기 원통형확장슬리브(30)의 가이드홈(32)에 결합되어 이동가능하게 결합된다. In addition, the second guide protrusion 41 of the outer diameter is coupled to the guide groove 32 of the cylindrical expansion sleeve 30 is movably coupled.

다음, 상기 슬리브확장너트(50)는 그의 내경에 나사(53)가 형성되어 볼트(10)의 나사부(12)에 체결된다. 그리고 그의 외경에는 외면경사면(51)이 형성되어, 이 외면경사면(51)은 상기 제2확장슬리브(40)의 제2내면경사면(44)과 결합된다.Next, the sleeve extension nut 50 has a screw 53 formed in its inner diameter and is fastened to the threaded portion 12 of the bolt 10. An outer sloping surface 51 is formed at its outer diameter, and the outer sloping surface 51 is coupled to the second inner sloping surface 44 of the second expansion sleeve 40.

또한, 외경의 한쪽 끝단의 양쪽에 가이드돌기(52)가 형성되어, 이 가이드돌기(52)는 상기 제2확장슬리브(40)의 제2가이드홈(43)에 결합되어 이동가능하게 결합된다. In addition, guide protrusions 52 are formed at both ends of one end of the outer diameter, and the guide protrusions 52 are coupled to the second guide grooves 43 of the second expansion sleeve 40 so as to be movable.

도 4 내지 도 6에 나타낸 바와 같이, 상기 앵커볼트(1)의 나사부(12)의 조임회전에 의하여 슬리브확장너트(50)가 제2확장슬리브(40)의 원추형확장부(45)를 확장하고 이어서 상기 제2확장슬리브(40)가 원통형확장슬리브(30)의 원추형확장부(34)를 바깥쪽으로 확장하게 한다.As shown in FIGS. 4 to 6, the sleeve extension nut 50 extends the conical extension 45 of the second expansion sleeve 40 by the tightening rotation of the threaded portion 12 of the anchor bolt 1. The second expansion sleeve 40 then causes the conical extension 34 of the cylindrical expansion sleeve 30 to extend outward.

즉, 원통형확장슬리브(30)의 길이방향으로 절개된 가이드홈(32)에 제2확장슬리브(40)의 제2가이드돌기(41)가 안내이동되고, 상기 제2확장슬리브(40)에 형성한 제2가이드홈(43)에 상기 슬리브확장너트(50)의 가이드돌기(52)가 안내이동되어, 슬리브확장너트(50)가 제2확장슬리브(40)의 원추형확장부(45)를 확장하고 이어서 상기 제2확장슬리브(40)가 원통형확장슬리브(30)의 원추형확장부(34)를 바깥쪽으로 확장하게 된다.That is, the second guide protrusion 41 of the second expansion sleeve 40 is guided to the guide groove 32 cut in the longitudinal direction of the cylindrical expansion sleeve 30, and formed in the second expansion sleeve 40. The guide protrusion 52 of the sleeve extension nut 50 is guided to the second guide groove 43 so that the sleeve extension nut 50 extends the conical extension 45 of the second extension sleeve 40. Subsequently, the second expansion sleeve 40 extends the conical extension 34 of the cylindrical expansion sleeve 30 outward.

도 7 및 도 8과 같이 상기 원통형확장슬리브(30)가 결합되는 앵커볼트(1)의 나사부(12)에 상기 복수개의 제2확장슬리브(40)가 장착되어, 슬리브확장너트(50)가 제2확장슬리브(40)들의 원추형확장부(45)를 순차적으로 확장하고 이어서 상기 제2확장슬리브(40)들이 원통형확장슬리브(30)의 원추형확장부(34)를 바깥쪽으로 확장하게 된다. As shown in FIGS. 7 and 8, the plurality of second expansion sleeves 40 are mounted on the threaded portion 12 of the anchor bolt 1 to which the cylindrical expansion sleeve 30 is coupled, and the sleeve expansion nut 50 is formed. The conical extensions 45 of the two expansion sleeves 40 are sequentially extended, and the second expansion sleeves 40 extend outward from the conical extension 34 of the cylindrical expansion sleeve 30.

결국, 슬리브확장너트(50)가 제2확장슬리브(40)의 원추형확장부(45)를 확장하고, 또한 제 2확장슬리브(40)는 원통형확장슬리브(30)의 원추형확장부(34)를 벌려서 앵커볼트구멍(2)의 내면에 상기 원추형확장부(34)가 억지 맞춤으로 끼워져 유지하게 되고, 또한 어, 앵커볼트구멍에 앵커볼트(1)가 유지 고정되게 된다.As a result, the sleeve extension nut 50 extends the conical extension 45 of the second extension sleeve 40, and the second extension sleeve 40 extends the conical extension 34 of the cylindrical extension sleeve 30. The conical expansion portion 34 is held in a tight fit on the inner surface of the anchor bolt hole 2 by opening, and the anchor bolt 1 is held and fixed in the anchor bolt hole.

* 도면의 주요부분에 대한 부호의 설명 *
1 : 앵커볼트 2 : 앵커볼트구멍
10 : 볼트 11 : 머리부
12 : 나사부 20 : 와셔
30 : 원통형확장슬리브 31 : 플랜지턱
32 : 가이드홈 33 : 내면경사면
34 : 원추형확장부 40 : 제2확장슬리브
41 : 제2가이드돌기 42 : 제2외면경사면
43 : 제2가이드홈 44 : 제2내면경사면
45 : 원추형확장부 50 : 슬리브확장너트
51 : 외면경사면 52 : 가이드돌기
53 : 나사 Description of the Related Art [0002]
1: Anchor Bolt 2: Anchor Bolt Hole
10 bolt 11 head
12: screw portion 20: washer
30: cylindrical expansion sleeve 31: flange jaw
32: guide groove 33: inner slope
34: conical expansion portion 40: second expansion sleeve
41: second guide projection 42: the second outer slope
43: second guide groove 44: the second inner slope
45: conical extension part 50: sleeve extension nut
51: exterior slope 52: guide projection
53: screw

Claims (3)

일정길이의 나사부에 길이방향으로 절개된 가이드홈을 가지는 확장슬리브가 결합되고, 상기 확장슬리브가 결합된 나사부에 슬리브확장너트가 결합되어, 나사부의 조임회전에 의하여 슬리브확장너트가 확장슬리브의 슬리브몸체를 바깥쪽으로 확장하는 앵커볼트에 있어서,
길이방향으로 절개된 가이드홈(32)을 가지는 원통형확장슬리브(30)가 결합되는 앵커볼트(1)의 나사부(12)에 제2확장슬리브(40)가 결합되고, 상기 원통형확장슬리브(30)와 제2확장슬리브(40)가 결합된 나사부(12)에 슬리브확장너트(50)가 체결되어, 상기 앵커볼트(1)의 나사부(12)의 조임회전에 의하여 슬리브확장너트(50)가 제2확장슬리브(40)의 원추형확장부(45)를 확장하고 이어서 상기 제2확장슬리브(40)가 원통형확장슬리브(30)의 원추형확장부(34)를 바깥쪽으로 확장함을 특징으로 하는 앵커볼트.
An extension sleeve having a guide groove cut in the longitudinal direction is coupled to a thread part of a predetermined length, and a sleeve extension nut is coupled to a threaded portion to which the extension sleeve is coupled, and the sleeve extension nut is connected to the sleeve body of the extension sleeve by tightening rotation of the screw part. For anchor bolts extending outwards,
The second expansion sleeve 40 is coupled to the threaded portion 12 of the anchor bolt 1 to which the cylindrical expansion sleeve 30 having the guide groove 32 cut in the longitudinal direction is coupled, and the cylindrical expansion sleeve 30 And the sleeve extension nut 50 are fastened to the threaded portion 12 to which the second extension sleeve 40 is coupled, and the sleeve extension nut 50 is fastened by tightening rotation of the threaded portion 12 of the anchor bolt 1. Anchor bolt, characterized in that to extend the conical expansion portion 45 of the two expansion sleeve 40, and then the second expansion sleeve 40 extends the conical expansion portion 34 of the cylindrical expansion sleeve (30) outwards. .
청구항 1에 있어서, 원통형확장슬리브(30)의 길이방향으로 절개된 가이드홈(32)에 제2확장슬리브(40)의 제2가이드돌기(41)가 안내이동되고, 상기 제2확장슬리브(40)에 형성한 제2가이드홈(43)에 상기 슬리브확장너트(50)의 가이드돌기(52)가 안내이동되어, 슬리브확장너트(50)가 제2확장슬리브(40)의 원추형확장부(45)를 확장하고 이어서 상기 제2확장슬리브(40)가 원통형확장슬리브(30)의 원추형확장부(34)를 바깥쪽으로 확장함을 특징으로 하는 앵커볼트.
The method of claim 1, wherein the second guide protrusion 41 of the second expansion sleeve 40 is guided to the guide groove 32 cut in the longitudinal direction of the cylindrical expansion sleeve 30, the second expansion sleeve 40 The guide protrusion 52 of the sleeve extension nut 50 is guided and moved to the second guide groove 43 formed at the bottom thereof, so that the sleeve extension nut 50 is the conical extension portion 45 of the second extension sleeve 40. ) And then the second expansion sleeve (40) extends outwardly the conical extension (34) of the cylindrical expansion sleeve (30).
청구항 1 또는 청구항 2에 있어서, 상기 원통형확장슬리브(30)가 결합되는 앵커볼트(1)의 나사부(12)에 상기 복수개의 제2확장슬리브(40)가 장착되어, 슬리브확장너트(50)가 제2확장슬리브(40)들의 원추형확장부(45)를 순차적으로 확장하고 이어서 상기 제2확장슬리브(40)들이 원통형확장슬리브(30)의 원추형확장부(34)를 바깥쪽으로 확장함을 특징으로 하는 앵커볼트. The method according to claim 1 or 2, wherein the plurality of second expansion sleeve 40 is mounted to the threaded portion 12 of the anchor bolt (1) to which the cylindrical expansion sleeve 30 is coupled, the sleeve expansion nut 50 Sequentially expanding the conical extensions 45 of the second expansion sleeves 40 and then extending the conical extensions 34 of the cylindrical expansion sleeve 30 outwards. Anchor bolt.
KR1020110022727A 2011-03-15 2011-03-15 Extended anchor bolt KR20120105129A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107355458A (en) * 2017-07-06 2017-11-17 海盐县通顺标准件厂 A kind of modified form setscrew
KR102071403B1 (en) 2019-10-02 2020-01-30 손석환 Seismic multi-stage set anchor unit
KR20200080790A (en) * 2018-12-27 2020-07-07 정재홍 The expansion bolt
CN111705794A (en) * 2020-06-28 2020-09-25 江阴职业技术学院 Anchor rod resistance increasing device and construction method thereof
KR102232854B1 (en) * 2020-06-17 2021-03-26 단국대학교 산학협력단 Anchor with multiple extension sleeve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107355458A (en) * 2017-07-06 2017-11-17 海盐县通顺标准件厂 A kind of modified form setscrew
CN107355458B (en) * 2017-07-06 2022-11-25 海盐县通顺标准件厂 Improved expansion screw
KR20200080790A (en) * 2018-12-27 2020-07-07 정재홍 The expansion bolt
KR102071403B1 (en) 2019-10-02 2020-01-30 손석환 Seismic multi-stage set anchor unit
KR102232854B1 (en) * 2020-06-17 2021-03-26 단국대학교 산학협력단 Anchor with multiple extension sleeve
CN111705794A (en) * 2020-06-28 2020-09-25 江阴职业技术学院 Anchor rod resistance increasing device and construction method thereof

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