KR20160127961A - Anchor bolt and construction method thereof - Google Patents

Anchor bolt and construction method thereof Download PDF

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Publication number
KR20160127961A
KR20160127961A KR1020150059546A KR20150059546A KR20160127961A KR 20160127961 A KR20160127961 A KR 20160127961A KR 1020150059546 A KR1020150059546 A KR 1020150059546A KR 20150059546 A KR20150059546 A KR 20150059546A KR 20160127961 A KR20160127961 A KR 20160127961A
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KR
South Korea
Prior art keywords
bolt
sleeve
anchor bolt
hole
fastened
Prior art date
Application number
KR1020150059546A
Other languages
Korean (ko)
Inventor
최우규
Original Assignee
(주)성은
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Filing date
Publication date
Application filed by (주)성은 filed Critical (주)성은
Priority to KR1020150059546A priority Critical patent/KR20160127961A/en
Publication of KR20160127961A publication Critical patent/KR20160127961A/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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • 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
    • F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
    • 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
    • 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
    • F16B13/065—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 the screw, nail or the like

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The present invention relates to an anchor bolt comprising: a sleeve; and a body. The sleeve includes a bolt unit and a plurality of wings which are divided by a plurality of slits and surround the bolt unit. The body forms a screw unit connected to the bolt unit in an inner peripheral surface of a hollow; and includes a slope unit wherein an external diameter becomes smaller toward one end. The wings are extended to the outside by being pushed to the outer surface of the slope unit according to connection of the bolt unit and the body. The anchor bolt includes a compact structure and fixes a structure without projecting a hole of a ground or a wall to the outside. The anchor bolt prevents movement caused by hardening and swelling glue injected to the hole.

Description

Anchor bolt and construction method < RTI ID = 0.0 >

The present invention relates to an anchor bolt and a construction method thereof.

More particularly, the present invention relates to an anchor bolt capable of fixing a structure even if it is not protruded to the outside of a hole of a floor or a wall with a compact structure, and can prevent the adhesive, which is injected into the hole, will be.

Generally, anchor bolts are used to fix a structure by being installed in a hole formed in the ground or a wall or the like.

Such anchor bolts are disclosed in Korean Patent Laid-Open Publication No. 2011-0046071.

1 and 2, a conventional anchor bolt includes an inclined head 102 inserted into a mounting hole 101 formed in a wall surface, and a shaft 102 103 and a threaded portion 104; The bolt 105 is provided with a plurality of slots 107 in the radial direction so as to be in close contact with the mounting hole 101 while the diameter of the bolt 105 is enlarged by the head 102 pulled outward by the nut 106 fastened to the screw portion 104. [ The bolts 105 and the socket 108 are made to rotate idly so as to prevent the bolts 105 from idling when the bolts 105 are fastened with the nuts 106. [ (110). ≪ IMAGE >

However, such a conventional anchor bolt has a problem that the bolts of the anchor bolts must always protrude above the ground to fix the structure.

In addition, in the conventional anchor bolts, when the structure fixed to the anchor bolts is removed, there is a problem that a part of the bolts protruding from the ground is cut off separately.

In addition, such conventional anchor bolts have a problem in that when the adhesive is injected into the mounting hole, the adhesive is cured and swollen so that the anchor bolt can be pushed and moved.

In addition, when the nut and the bolt are fastened, the conventional anchor bolt is enlarged to have a larger diameter as the socket is moved to the lower end (in the form of a vertically opposed light), so that when an anchor bolt is applied with great force, .

KR 2011-0046071 A

The present invention provides an anchor bolt capable of fixing a structure even if it is not protruded to the outside of a hole of a floor or a wall with a compact structure and can prevent the adhesive injected into the hole from being pushed and moved even if it is cured and its construction method It has its purpose.

According to an aspect of the present invention, there is provided an anchor bolt comprising: a bolt; a sleeve divided by a plurality of slits and having a plurality of blades surrounding the bolt; And a body having an inclined portion with an outer diameter decreasing toward one end, wherein a plurality of the vanes are formed on an outer surface of the inclined portion in a state where the bolt portion and the body are engaged with each other, And is extended outwardly.

Further, the inclined portion is characterized in that at least a part of the outer diameter is smaller than the inner diameter of the sleeve.

The plurality of vanes further protrude outward toward the upper end as the bolt and the body are fastened together.

Further, a flange is formed at the other end of the body.

Further, protrusions are formed on an outer surface of at least one of the plurality of vanes.

The plurality of slits may be elongated in the longitudinal direction, and may be formed at regular intervals along the circumference of the sleeve.

Further, the lower end of the sleeve is formed outwardly convex.

Further, the upper end of the bolt portion is formed higher than the upper end of the vane.

According to an aspect of the present invention, there is provided an anchor bolt construction method comprising: drilling a hole in a construction surface; An injection step of injecting an adhesive into the hole; Inserting an anchor bolt made of a sleeve and a body into the hole; And an expanding step of expanding a plurality of blades of the sleeve by the inclined portion of the body as the body is rotated by bolts to fasten the body and the bolt portion of the sleeve.

Further, in the expanding step, the bolt is fastened to the body while the structure is inserted.

Further, in the expansion step, the bolt is fastened to the body fitted with the structure.

The anchor bolt according to the present invention and its construction method have the following advantages.

The anchor bolt and its construction method according to the present invention have an advantage that a structure can be fixed even if an anchor bolt does not protrude to the outside of a hole of a ground or a wall.

The anchor bolt and the method of constructing the same according to the present invention are advantageous in that the anchor bolt and the construction method thereof are compact and easy to construct.

The anchor bolt and its construction method according to the present invention are advantageous in that when the structure fixed to the anchor bolt is removed, the anchor bolt does not protrude outside the hole of the ground or the wall, so that it is not necessary to cut and remove it separately.

The anchor bolt and its construction method according to the present invention are advantageous in that when an adhesive is injected into a hole of a floor or a wall, the anchor bolt can be prevented from being pushed and moved even if the adhesive is cured and swollen.

As the bolts and the body are fastened to each other, a plurality of blades protrude further outward from the upper ends of the anchor bolts and the anchoring bolts are separated from the holes of the floor or the wall. There is an advantage that it can be prevented.

The anchor bolt and the method of manufacturing the same according to the present invention are advantageous in that the sleeve is fixed in the hole by the projection to prevent the sleeve from rotating together with the body when the bolt and the body are fastened.

1 is an exploded perspective view showing a conventional anchor bolt.
2 is a sectional view showing a conventional anchor bolt;
3 is a perspective view showing an anchor bolt according to a preferred embodiment of the present invention.
4 is an exploded perspective view showing an anchor bolt according to a preferred embodiment of the present invention.
FIG. 5 is a perspective view showing a flange formed on a body in FIG. 2; FIG.
6 is a cross-sectional view schematically showing a piercing step of an anchor bolt construction method according to a preferred embodiment of the present invention.
7 is a cross-sectional view schematically showing an injection step of an anchor bolt construction method according to a preferred embodiment of the present invention.
8 is a cross-sectional view schematically illustrating an inserting step of an anchor bolt construction method according to a preferred embodiment of the present invention.
9 is a cross-sectional view schematically showing an expansion step of an anchor bolt construction method according to a preferred embodiment of the present invention.
10 is a cross-sectional view schematically showing an inserting step of an anchor bolt construction method according to another embodiment of the present invention.
11 is a cross-sectional view schematically showing an expansion step of an anchor bolt construction method according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

For reference, the same components as those of the prior art of the present invention will be described with reference to the related art, and a detailed description thereof will be omitted.

In addition, the same reference numerals denote substantially the same constituent elements among the constituent elements of the present invention to be described below.

4 is an exploded perspective view showing an anchor bolt 10 according to a preferred embodiment of the present invention, and Fig. 5 is an exploded perspective view showing an anchor bolt 10 according to a preferred embodiment of the present invention. Fig. 3 is an exploded perspective view showing an anchor bolt 10 according to a preferred embodiment of the present invention, 6 is a cross-sectional view schematically showing a piercing step of an anchor bolt 10 construction method according to a preferred embodiment of the present invention, and Fig. 7 is a cross- 8 is a cross-sectional view schematically showing the inserting step of the anchor bolt 10 construction method according to the preferred embodiment of the present invention. Fig. 8 is a cross-sectional view schematically showing the inserting step of the anchor bolt 10 construction method according to the preferred embodiment of the present invention. FIG. 9 is a cross-sectional view schematically showing an enlarging step of an anchor bolt 10 construction method according to a preferred embodiment of the present invention, and FIG. 10 is a cross-sectional view of an anchor bolt 10 construction method according to another embodiment of the present invention. Insert steps 11 is a cross-sectional view schematically showing an expansion step of an anchor bolt 10 construction method according to another embodiment of the present invention.

[Anchor bolt (10)]

3 to 4, an anchor bolt 10 according to a preferred embodiment of the present invention includes a bolt part 110 and a plurality of slits 120, A sleeve (100) having a plurality of blades (130); And a body 200 having a threaded portion 220 to which the bolt 110 is fastened to the inner circumferential surface of the hollow 210 and having an inclined portion 230 whose outer diameter gradually decreases toward one end, And the body 130 is pushed by the outer surface of the inclined portion 230 and expanded outwardly as the bolt portion 110 and the body 200 are fastened.

The sleeve 100 has a cylindrical outer shape with an open top. The lower end of the sleeve 100 is convex downward. The sleeve 100 is coupled to the body 200 to be described later by a bolt 110 formed at the center of the sleeve. The sleeve 100 has a bolt portion 110 and a plurality of blades 130 divided by the slit 120 to surround the bolt portion 110.

The bolt portion 110 is formed inside the sleeve 100 and extends vertically upward from the center of the bottom of the sleeve 100. The bolt portion 110 is formed long in the longitudinal direction and is integrally formed on the bottom of the sleeve 100 by welding or the like. The bolt portion 110 is formed for coupling the body 200 and the sleeve 100 to be described later. The upper end of the bolt portion 110 is formed higher than the upper end of the wing 130. That is, the bolt portion 110 protrudes further upward than the blade 130, so that it is easy to fasten the body 200 to be described later to the bolt portion 110.

Six slits 120 are formed along the circumference of the sleeve 100. Each of the slits 120 is formed to have the same length and is formed long in the longitudinal direction from the upper end of the sleeve 100 to the lower constant height. The slit 120 is formed through the outer peripheral surface of the inner peripheral surface of the sleeve 100. Further, the upper end of the slit 120 is opened and the lower end thereof is closed. Six slits 120 are formed at equal intervals along the circumference of the sleeve 100, respectively.

Six wings 130 are formed along the circumference of the sleeve 100. Each blade 130 is formed so as to surround the bolt portion 110, and distances between the respective vanes 130 and the bolt portion 110 are the same. Each wing 130 is formed by dividing the circumferential surface of the sleeve 100 by each slit 120. The wings 130 are formed between two slits 120 closest to each other among the slits 120 and the slits 120 are formed between the two wings 130 closest to each other among the wings 130. The longitudinal length of the wings 130 is equal to the longitudinal length of the slits 120 and the number of the wings 130 is preferably equal to the number of the slits 120 formed along the circumferential surface of the sleeve 100. Each of the vanes 130 is pushed by the outer surface of the inclined portion 230 and expanded outwardly as the bolt portion 110 and the body 200 to be described later are fastened. More specifically, as each bolt (110) and the body (200) are fastened, each wing (130) protrudes outward toward the upper end. That is, each wing 130 is extended to the outer side as it goes to the upper end, and is expanded to have the shape of the upper light-gathering as a whole.

A protrusion (140) protruding outward is formed at the lower part of the outer surface of the blade (130). The protrusions 140 are formed on the outer surface of at least one of the plurality of vanes 130. In this embodiment, the protrusions 140 are formed on the outer surfaces of the two vanes 130 located on the left and right sides, . The projection 140 has a triangular prism shape. The protrusion 140 is formed by inserting the anchor bolt 10 downward into the hole 410 of the mounting surface 400 and then inserting the sleeve 100 when the body 200 is rotated and fastened to the bolt portion 110 And serves to fix the sleeve 100 so as not to rotate together with the body 200. When the anchor bolt 10 is inserted into the hole 410 of the mounting surface 400 while bending the anchor bolt 10 downwardly, the protrusion 140 forms a groove 420 in the longitudinal direction in the circumferential surface of the hole 410 It plays a role.

Although six slits 120 and two blades 130 are formed in this embodiment, the number of the slits 120 and the blades 130 may be varied as needed.

The body 200 is generally long and cylindrically shaped. The outer diameter of the portion of the body 200 other than the inclined portion 230, which will be described later, is larger than the inner diameter of the sleeve 100. In the center of the body 200, a hollow 210 is formed long in the longitudinal direction. The hollow (210) penetrates from the upper end to the lower end of the body (200). The body 200 is fastened to the bolt 110 of the sleeve 100. The body 200 is positioned closer to the inlet side of the hole 410 than the sleeve 100 when the anchor bolt 10 is installed in the hole 410 of the mounting surface 400. The body 200 has a threaded portion 220 to which the bolt 110 is fastened on the inner circumferential surface of the hollow 210 and has an inclined portion 230 having a smaller outer diameter toward one end.

The threaded portion 220 is formed on the entire inner peripheral surface of the hollow 210. The screw part 220 is formed for fastening the body 200 and the bolt part 110 and is also formed for installing the anchor bolt 10 after the installation. More specifically, the body 200 is rotated at the upper inlet side of the hollow 210, and a separate bolt 700 for fixing the structure 600 is fastened. The bolt 110 of the sleeve 100 is fastened to the lower end of the hollow 210.

The inclined portion 230 is formed at the lower end of the body 200. The inclined portion 230 is formed in a shape of an upper light-tight narrowing shape whose outer diameter gradually decreases toward the lower end. More specifically, the inclined portion 230 has a shape in which a portion of the vertex side portion is cut in a cone where a vertex is located at the lower side. The inclined portion 230 may be formed so that at least a portion of the outer diameter is smaller than the inner diameter of the sleeve 100 so that a portion of the lower portion of the inclined portion 230 can be received in the sleeve 100. The inclined portion 230 serves to expand the respective vanes 130 by pushing the inner surface of each vane 130 outward when the bolt portion 110 and the body 200 are coupled. That is, the inclined portion 230 serves to guide the expansion of each wing 130.

As shown in FIG. 5, a flange 240 may be formed on an upper outer peripheral surface of the body 200. The flange 240 is formed in a hexagonal shape. The flange 240 facilitates rotating the body 200 with the tool. The flange 240 prevents the structure 600 from being detached from the body 200 without installing a separate part when the anchor bolt 10 is installed after the structure 600 is inserted through the lower end of the body 200 .

[ Anchor bolt (10) Construction method]

6 to 10, a method of constructing an anchor bolt 10 according to a preferred embodiment of the present invention includes a piercing step of piercing a hole 410 in a construction surface 400, An inserting step of inserting an anchor bolt 10 made of a sleeve 100 and a body 200 into a hole 410 and a step of rotating the body 200 with a bolt 700 The inclined portion 230 of the body 200 includes an expanding step of expanding the plurality of vanes 130 of the sleeve 100 by fastening the bolt portion 110 and the body 200 of the sleeve 100 .

6, a drilling step is performed to drill a hole 410 through which an anchor bolt 10 is to be inserted, by drilling (not shown) or the like, on a construction surface 400 such as a floor or a wall surface. The diameter of the hole 410 is preferably not larger than the outer diameter of the sleeve 100 of the anchor bolt 10. In the punching step, an operation of cleaning the inside of the hole 410 punched with a drill (not shown) may be performed concurrently.

Next, as shown in Fig. 7, an injection step of injecting the adhesive 500 into the hole 410 is performed. The adhesive 500 serves to firmly fix the anchor bolt 10 in the hole 410 and to prevent water or foreign matter from penetrating into the hole 410. [

8, an inserting step of inserting the anchor bolt 10 made of the sleeve 100 and the body 200 into the hole 410 into which the adhesive 500 is injected is carried out. In the inserting step, the anchor bolt 10 is completely aligned with the hole 410 while hitting the upper end of the anchor bolt 10 with a hammer (not shown) . When the anchor bolt 10 is inserted into the hole 410, the inner circumferential surface of the hole 410, that is, the circumferential surface inside the hole 410, is supported by two projections 140 formed on the wing 130 of the sleeve 100 And two grooves 420 facing each other are elongated in the longitudinal direction. The two grooves 420 guide part of the adhesive 500 to the outside of the hole 410 when the adhesive 500 injected into the hole 410 into which the anchor bolt 10 is inserted is excessively or hardened and bulges, Thereby preventing the anchor bolt 10 from being pushed in the hole 410 by the adhesive 500. It is preferable that the anchor bolt 10 inserted in the inserting step is inserted while the body 200 and the bolt part 110 of the sleeve 100 are partially fastened.

9, the body 200 is rotated by the bolts 700 having the structure 600 inserted therein, and the bolts 110 and the body 200 of the sleeve 100 are fastened to each other, 200 are extended to expands a plurality of vanes 130 of the sleeve 100. As shown in FIG. The bolt 700 is fastened to the threaded portion 220 of the body 200 through the inlet on the upper side of the hollow 210 of the body 200 while the structure 600 is inserted to rotate the body 200, As the body 200 rotates, the bolt 110 of the sleeve 100 is fastened to the threaded portion 220 of the body 200 through the lower end of the hollow 210 of the body 200. The sleeve 100 is moved upward as the bolt 110 is gradually fastened to the threaded portion 220 of the body 200 while a portion of the lower portion of the inclined portion 230 of the body 200 is received therein, The outer surface of the inclined portion 230 of the body 200 pushes the inner surface of the plurality of vanes 130 of the sleeve 100 to expand the vanes 130 outwardly. At this time, the extended vanes 130 have a shape of upward light-projecting further protruding outward toward the upper end so that the anchor bolt 10 is more firmly fixed in the hole 410 and the structure 600 is fixed on the construction surface 400, respectively.

 In describing the anchor bolt 10 construction method according to another embodiment of the present invention, the same puncturing step and injection step as those in the anchor bolt 10 construction method according to the preferred embodiment of the present invention are not described, Are given in the same manner as in the anchor bolt 10 construction method according to the preferred embodiment of the present invention.

10 to 11, in the method of constructing an anchor bolt 10 according to another embodiment of the present invention, the bolts 700 are fastened to the body 200 having the structure 600 inserted therein .

As shown in FIG. 10, an inserting step of inserting the anchor bolt 10 made of the sleeve 100 and the body 200 into the hole 410 into which the adhesive 500 is injected is inserted . In the inserting step, the anchor bolt 10 is struck on the upper end of the anchor bolt 10 with a hammer (not shown) while keeping the anchor bolt 10 in a straight line with the hole 410, The anchor bolt 10 is inserted into the hole 410 so as to protrude outward. The reason for this is that the structure 600 is inserted into the protruded body 200. When the anchor bolt 10 is inserted into the hole 410, the inner circumferential surface of the hole 410, that is, the circumferential surface inside the hole 410, is supported by two projections 140 formed on the wing 130 of the sleeve 100 And two grooves 420 facing each other are elongated in the longitudinal direction. The two grooves 420 guide part of the adhesive 500 to the outside of the hole 410 when the adhesive 500 injected into the hole 410 into which the anchor bolt 10 is inserted is excessively or hardened and bulges, Thereby preventing the anchor bolt 10 from being pushed in the hole 410 by the adhesive 500. The anchor bolt 10 inserted in the inserting step is inserted in a state where the body 200 and the bolts 110 of the sleeve 100 are partially fastened.

11, the body 200 having the structure 600 inserted therein is rotated to fasten the bolt portion 110 and the body 200 of the sleeve 100 to the body (not shown) 200 are extended to expands a plurality of vanes 130 of the sleeve 100. As shown in FIG. The bolt 700 is fastened to the threaded portion 220 of the body 200 through the inlet on the upper side of the hollow 210 of the body 200 in which the structure 600 is inserted to rotate the body 200, The bolt portion 110 of the sleeve 100 is fastened to the threaded portion 220 of the body 200 through the lower end of the hollow 210 of the body 200 as the body 200 rotates. The sleeve 100 is moved upward as the bolt 110 is gradually fastened to the threaded portion 220 of the body 200 while a portion of the lower portion of the inclined portion 230 of the body 200 is received therein, The outer surface of the inclined portion 230 of the body 200 pushes the inner surface of the plurality of vanes 130 of the sleeve 100 to expand the vanes 130 outwardly. At this time, the extended vanes 130 have a shape of upward light-projecting further protruding outward toward the upper end so that the anchor bolt 10 is more firmly fixed in the hole 410 and the structure 600 is fixed on the construction surface 400, respectively.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. can do.

10: anchor bolt 100: sleeve
110: bolt portion 120: slit
130: wing 140: projection
200: body 210: hollow
220: threaded portion 230: inclined portion
240: flange 400: construction surface
410: hole 420: groove
500: Adhesive 600: Structure
700: Bolt portion

Claims (11)

A sleeve having a bolt portion and a plurality of blades separated by a plurality of slits and surrounding the bolt portion; And
And a body having a threaded portion for fastening the bolt part to an inner circumferential surface of the hollow and having an inclined part whose outer diameter gradually decreases toward one end,
And the plurality of blades are pushed by the outer surface of the inclined portion and expanded outwardly as the bolt portion and the body are fastened.
The method according to claim 1,
Wherein the inclined portion has an outer diameter at least partially smaller than an inner diameter of the sleeve.
3. The method of claim 2,
Wherein the plurality of vanes further protrude outward toward the upper end as the bolt and the body are fastened together.
The method of claim 3,
And an anchor bolt is formed at the other end of the body.
5. The method of claim 4,
Wherein an anvil bolt is formed on an outer surface of at least one of the plurality of vanes.
6. The method according to any one of claims 1 to 5,
Wherein the plurality of slits are elongated in the longitudinal direction, and are formed at equal intervals along the circumference of the sleeve.
The method according to claim 6,
And the lower end of the sleeve is formed outwardly convex.
8. The method of claim 7,
And an upper end of the bolt portion is formed higher than an upper end of the wing.
A piercing step of piercing the construction surface;
An injection step of injecting an adhesive into the hole;
Inserting an anchor bolt made of a sleeve and a body into the hole; And
And an expanding step of expanding a plurality of blades of the sleeve by the inclined portion of the body as the body is rotated by bolts to fasten the body and the bolt portion of the sleeve.
10. The method of claim 9,
Wherein the bolt is fastened to the body while the structure is inserted in the expanding step.
10. The method of claim 9,
Wherein the bolts are fastened to the body in which the structure is inserted in the expanding step.
KR1020150059546A 2015-04-28 2015-04-28 Anchor bolt and construction method thereof KR20160127961A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106678148A (en) * 2017-03-15 2017-05-17 镇江力点锚固有限公司 Pre-expansion chemical anchor bolt
KR102127681B1 (en) * 2019-05-03 2020-06-29 김병회 Expandable Anchor Bolt

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110046071A (en) 2009-10-28 2011-05-04 기세진 Anchor bolt

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110046071A (en) 2009-10-28 2011-05-04 기세진 Anchor bolt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106678148A (en) * 2017-03-15 2017-05-17 镇江力点锚固有限公司 Pre-expansion chemical anchor bolt
KR102127681B1 (en) * 2019-05-03 2020-06-29 김병회 Expandable Anchor Bolt

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