KR102505549B1 - Screw anchor for reinforcing building wall and building earthquake-proof reinforcement method using the same - Google Patents

Abstract

It relates to a building wall reinforcement knife block and a building earthquake-resistant reinforcement method using the same, wherein a plurality of projections on the outer circumferential surface of the plug are formed with a cylindrical body of the plug and a projection hole sequentially penetrating each projection, and a screw is inserted into the plug with an adhesive liquid In the process of being inserted into the inside of the plug in this position, the adhesive liquid inside the plug is released through the protrusion formed on each of the plurality of projections on the outer circumference of the plug by the screw, so that the plurality of projections on the outer circumference of the plug form a perforated hole in the wall of the building. It can be very strongly bonded with the inner surface.

Description

Building wall reinforcement knife block and building earthquake-proof reinforcement method using it {Screw anchor for reinforcing building wall and building earthquake-proof reinforcement method using the same}

It relates to a knife block inserted into a building wall and a building reinforcement method using the same.

Recently, as small and large earthquakes frequently occur not only in areas near the Pacific Rim seismic belt but also in areas far from the Pacific Rim seismic belt, research on earthquake-resistant construction methods is being actively conducted in many countries. The knife block is one of the earthquake-resistant construction methods used in construction. In order to prevent damage caused by layer separation or collapse of the outer wall of the building when an impact is applied to the building, it can be reinforced with earthquake resistance by strongly fixing several walls that make up the outer wall. It is a building material in

However, in order to carry out earthquake-resistant construction by simply inserting a knife block into the drilling hole, which is a hole made by drilling the outer wall of the building, the interior of the drilling hole wears out due to continuous friction between the knife block and the drilling hole, and the inside of the drilling hole is wider than the first, so there is a risk that the knife block will easily fall out of the drilling hole. For this reason, in order to improve the fixing force between the knife block and the exterior wall, a method of applying adhesive liquid to the knife block and then inserting it is also used. .

Korean Utility Model Registration No. 20-0456397 “Knife block with built-in adhesive” has a number of protrusions formed along the circumferential direction on the outer surface. It also discloses a configuration in which the adhesive force by the adhesive liquid is also generated. However, since the hole in the concrete wall into which the knife block is inserted has a very irregular shape rather than a flat inner diameter, there may be a part that does not fit with the protruding part of the knife block, and sufficient frictional force to fix the knife block may not be generated. there is. In addition, when the adhesive liquid contained in the knife block is released through a plurality of long holes when combined with screws, the plurality of long holes are formed in the longitudinal direction on the side, so that the adhesive liquid is applied only to the side surface of the knife block, so that the adhesive liquid is not applied. The upper and lower surfaces have a disadvantage in that the fixing force with the concrete hole is poor.

It is to provide a building wall reinforcement knife block and a building earthquake-proof reinforcement method using the same, which can be simply and conveniently constructed in a short time by strongly bonding with the inner circumferential surface of the perforation hole of the building wall. It is not limited to the technical problems as described above, and another technical problem may be derived from the following description.

A building wall reinforcement knife block according to an aspect of the present invention is formed in a cylindrical shape having a plurality of protrusions on an outer circumferential surface and includes a plug inserted into a perforation hole of a building wall; and a screw nail inserted into the plug in a state where the adhesive solution is located inside the plug inserted into the perforated hole of the building wall, wherein each of the plurality of protrusions on the outer circumferential surface of the plug includes a cylindrical body of the plug and each of the protrusions. In the process of inserting the screw inside the plug in a state where the adhesive liquid is located inside the plug, the adhesive liquid inside the plug is formed by the screw to penetrate the plurality of holes on the outer circumferential surface of the plug. It is discharged through a protrusion hole formed in each protrusion.

The plurality of protrusions on the outer circumferential surface of the plug may be arranged in a matrix form along a row direction corresponding to a circumferential direction of the outer circumferential surface of the plug and a column direction corresponding to a longitudinal direction of the outer circumferential surface of the plug.

The plurality of protrusions on the outer circumferential surface of the plug may be a plurality of hollow protrusions having a structure in which a protrusion hole penetrates each protrusion in a height direction of each protrusion after penetrating the cylindrical body of the plug.

A plurality of groove-type protrusions having protrusion grooves concavely dug in the circumferential direction of the outer circumferential surface of the plug are disposed between adjacent rows of the plurality of hollow protrusions, and the adhesive liquid inside the plug is applied to the plurality of grooves. Through the protrusion groove of each groove-type protrusion, the plurality of hollow protrusions may be discharged to the outer circumferential surface of the plug between adjacent rows.

The plug may include a first concave-convex portion in which some of the plurality of protrusions are formed on an outer circumferential surface; a second concave-convex portion in which the rest of the plurality of protrusions are formed on an outer circumferential surface; and an intermediate flat portion in which an outer circumferential surface is formed flat between the first concave-convex portion and the second concave-convex portion.

The plug further includes a slot portion in which at least one slot formed on an outer circumferential surface of the plug is formed elongated in a longitudinal direction of the plug, and the adhesive liquid inside the plug is applied to an outer circumferential portion of the intermediate flat portion through the at least one slot. can be released in

An incision groove extending in the longitudinal direction of the plug is formed in the first concave-convex portion, and in the process of inserting the screw into the plug, the incision in the first concavo-convex portion is the inner diameter of the plug and the outer diameter of the screw. While being split by the difference, the first concave-convex portion may be radially spread.

An incision groove 221 long in the longitudinal direction of the plug is formed in the second concave-convex portion, and in the process of inserting the screw into the plug, the incision groove of the second concave-convex portion is formed in the inner diameter of the plug and the incision groove 221. The second concave-convex portion may be radially spread while being split by a difference in outer diameter of the screws.

According to another aspect of the present invention, a building earthquake-resistant reinforcement method using a building wall reinforcement knife block includes a drilling step of forming a drilling hole in the building wall by perforating the building wall using a drill; an adhesive liquid injection step of injecting an adhesive liquid into the plug; a plug insertion step of inserting the plug into which the adhesive liquid has been injected into the perforated hole of the building wall; and a screw insertion step of inserting the screw into the plug into which the adhesive liquid has been injected while the plug into which the adhesive liquid has been injected is located inside the perforated hole of the building wall, wherein the building wall includes an outer wall layer, an insulation layer, and an inner wall layer, and the plurality of protrusions on the outer circumferential surface of the plug are formed by the adhesive liquid discharged through the protrusions formed on each of the plurality of protrusions on the outer circumferential surface of the plug with the outer wall layer, the heat insulating layer, and the inner wall layer. adhesively bonded.

When the plurality of protrusions on the outer circumference of the plug are in close proximity to or in contact with the inner circumference of the rugged perforation hole compared to conventional knife blocks, as the adhesive liquid is released through the protrusion formed on each of the plurality of protrusions on the outer circumference of the plug, the plurality of protrusions on the outer circumference of the plug The protruding portion can be very strongly engaged with the inner circumferential surface of the perforation hole in the building wall. As a result, the knife block can be strongly coupled and fixed to the perforated hole of the building wall, and the reinforcement of the building wall can be firmly and stably according to the improvement of the fixing power of the knife block.

Due to the strong fixing power of the knife block, it is possible to secure the stability of the building wall by preventing cracks in the building wall caused by earthquake, wind load, ground subsidence, and self-load, and by preventing the wear of the drilling hole formed over a long time. Since seismic reinforcement construction is possible just by inserting a knife block into the drilling hole after drilling the building wall, it is possible to perform earthquake-proof reinforcement construction for the building wall simply and conveniently in a short time.

1 and 2 are configuration diagrams of knife blocks according to an embodiment of the present invention.
3 is an enlarged view of a portion of the knife block shown in FIG. 2;
Figure 3 is an enlarged view showing a second screw thread portion of the screw of the knife block of Figure 2 enlarged.
4 to 7 are diagrams showing each process of a building earthquake-resistant reinforcement method according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Embodiments of the present invention described below relate to a building wall reinforcement knife block capable of simple and convenient building earthquake-proof reinforcement construction in a short time by being very strongly coupled to the inner circumferential surface of a perforation hole of a building wall and a building earthquake-proof reinforcement method using the same . Hereinafter, these building wall reinforcement knife blocks and building earthquake-resistant reinforcement methods will be briefly referred to as “knife blocks” and “building earthquake-proof reinforcement methods”.

1 and 2 are configuration diagrams of knife blocks according to an embodiment of the present invention. 1 and 2, the knife block according to this embodiment is composed of a screw 100 and a plug 200. 1 shows a state in which the screw 100 and the plug 200 are separated before being coupled, and FIG. 2 shows a state in which the screw 100 and the plug 200 are coupled.

The screw 100 is inserted into the plug 200 in a state where the adhesive liquid 300 is located inside the plug 200 inserted into the drilled hole 410 of the building wall 400. As shown in FIG. 1 , the plug 200 is formed in a cylindrical shape having a plurality of protrusions 260 on its outer circumferential surface and is inserted into the perforated hole 410 of the building wall 400 .

Referring to FIG. 1 , the screw 100 is composed of a head 110, a first threaded portion 120, a body portion 130, and a second threaded portion 140.

The head 110 is the upper part of the screw 100 with the widest diameter, and is a part that gets caught in the inlet of the plug 200 when the screw 100 is inserted into the plug 200.

The first threaded portion 120 is a portion connected to the head 110, and a plurality of threads are formed on its outer circumferential surface. The second threaded portion 140 is the lower portion of the screw 100 that is first inserted into the plug 200 when the screw 100 is inserted into the plug 200, and similar to the first threaded portion 120, its outer circumferential surface A plurality of threads are formed.

The body portion 130 is a portion located between the first threaded portion 120 and the second threaded portion 140, and is coupled to the middle flat portion 240 of the plug 200. Unlike the first threaded portion 120 and the second threaded portion 140, it is a portion without a thread and has a smooth appearance.

Referring to FIG. 1 , the plug 200 includes an inlet portion 210 , a first concave-convex portion 220 , a slot portion 230 , an intermediate flat portion 240 , and a second concave-convex portion 250 . The plug 200 is formed in the form of an empty pipe, and an adhesive liquid 300 is applied to the inner circumferential surface before the screw 100 is inserted.

The inlet portion 210 is a portion into which the screw 100 is first inserted, and the screw 100 inserted into the plug 200 through the inlet portion 210 is the first concave-convex portion 220 and the slot portion 230. ), the middle flat portion 240 and the second concave-convex portion 250 are completely fastened to the plug 200 in turn.

The first concave-convex portion 220 is a portion connected to the inlet portion 210, and a portion of all protrusions 260 on the surface of the plug 200 are formed on its outer circumferential surface. The second concave-convex portion 250 is a lower portion of the plug 200, and the rest of the entire protrusions 260 on the surface of the plug 200 are formed on its outer circumferential surface.

Two incision grooves 221 long in the longitudinal direction of the plug 200 are formed in each of the first concave-convex portion 220 and the second concave-convex portion 250 . One incision groove 221 may be formed, or a greater number of incision grooves 221 may be formed. In the process of inserting the screw 100 into the plug 200, the cutout 221 of each of the first concave-convex portion 220 and the second concave-convex portion 250 is the inner diameter of the plug 200 and the screw 100 The first concave-convex portion 220 and the second concave-convex portion 250 are radially spread while being split by a difference in outer diameter.

The first concave-convex portion 220 and the second concave-convex portion 250 maintain a circular pipe shape before the screw 100 is inserted into the plug 200, but also when the screw 100 is inserted into the plug 200. As shown in Fig. 2, the incision groove 221 formed on the first concave-convex portion 220 and the second concave-convex portion 250 is split open and radially expanded.

As such, while the first concave-convex portion 220 and the second concave-convex portion 250 are radially spread, the protrusions 260 of the first concave-convex portion 220 and the second concave-convex portion 250 are press-fitted to the inner circumferential surface of the perforation hole. As the adhesive liquid flows out of the protrusions 260, the protrusions 260 of the first concave-convex portion 220 and the second concave-convex portion 250 are strongly adhesively bonded to each other while being press-fitted to the inner circumferential surface of the perforation hole. Accordingly, the fixing force of the knife block can be firmly maintained even in strong vibrations such as earthquakes.

A plurality of protrusions 260 formed on the outer circumferential surface of the plug 200, that is, the protrusions 260 of the first concave-convex portion 220 and the second concave-convex portion 250 are arranged in a row direction corresponding to the circumferential direction of the outer circumferential surface of the plug 200. and disposed in a matrix form along a column direction corresponding to a longitudinal direction of an outer circumferential surface of the plug 200 . Some of the plurality of protrusions 260 are a plurality of hollow protrusions 261 and others are a plurality of groove-type protrusions 262 . The plurality of hollow protrusions 261 are arranged in two rows along the longitudinal direction of the outer circumferential surface of the plug 200 . The plurality of groove-type protrusions 262 are arranged in two rows along the longitudinal direction of the outer circumferential surface of the plug 200 between adjacent rows of the plurality of hollow protrusions 261 . By the plurality of protrusions 260 arranged in a matrix form, the entire knife block can be uniformly coupled to the perforation hole 410 of the building wall 400, and the fixing force of the knife block can be further improved.

Each of the plurality of hollow protrusions 261 is formed in the shape of a quadrangular pyramid with a flat upper end, and each has a protrusion hole 263 that sequentially passes through the cylindrical body of the plug 200 and each protrusion 260 . While the screw 100 is inserted into the plug 200 in a state where the adhesive 300 is located inside the plug 200, the adhesive 300 inside the plug 200 is attached to the plug by the screw 100. (200) is emitted through the protrusion hole 263 formed in each of the plurality of protrusions 260 on the outer circumferential surface.

In this way, the plurality of hollow protrusions 261 corresponding to some of the plurality of protrusions 260 on the outer circumferential surface of the plug 200 penetrate the cylindrical body of the plug 200 and then each protrusion 260 in the height direction. As it has a structure in which the protrusion hole 263 penetrating the protrusion 260 is formed, the adhesive liquid applied inside the plug 200 is applied to each protrusion hole 263 when the screw 100 is inserted into each protrusion ( 260) serves as a passage to be discharged to the upper part.

The inner circumferential surface of the perforation hole 410 of the building wall 400 is not very smooth and is formed somewhat bumpy during the perforation process. Republic of Korea Utility Model Registration No. 20-0456397 “Knife block with built-in adhesive” etc. The distance between the outer circumference of the conventional knife block and the inner circumference of the perforated hole is not constant, and there are parts that are considerably larger than other parts. Even if the adhesive liquid is applied between the outer circumferential surface of the conventional knife block and the inner circumferential surface of the perforation hole, the outer circumferential surface of the knife block and the inner circumferential surface of the perforated hole cannot be combined, and the adhesive liquid hardened only on either side of the outer circumferential surface of the knife block and the inner circumferential surface of the perforated hole was found here and there. As a result, accidents in which the knife block is separated from the drilling hole due to earthquakes or continuous building vibrations have frequently occurred.

A plurality of protrusions 260 on the outer circumferential surface of the plug 200 are formed in each of the plurality of protrusions 260 on the outer circumferential surface of the plug 200 in a state in which the plurality of protrusions 260 are very close to or in contact with the inner circumferential surface of the rugged perforation hole compared to the conventional knife block ( As the adhesive liquid is released through 263, the plurality of protrusions 260 on the outer circumferential surface of the plug 200 can be very strongly coupled to the inner circumferential surface of the perforation hole 410 of the building wall 400. As a result, the knife block can be strongly coupled to and fixed to the drilling hole 410 of the building wall 400, and the reinforcement of the building wall can be made firmly and stably according to the improvement of the fixing power of the knife block. In particular, as the adhesive liquid is released from the top of each hollow protrusion 261, each hollow protrusion 261 can be strongly bonded to the inner circumferential surface of the perforation hole of the building wall.

Each of the plurality of groove-type protrusions 262 is formed in the shape of a quadrangular pyramid with a flat upper end, and each of them has a protrusion groove 264 concavely dug in the circumferential direction of the outer circumferential surface of the plug 200 . The adhesive liquid 300 inside the plug 200 is discharged to the outer peripheral surface of the plug between adjacent rows of the plurality of hollow protrusions 261 through each protrusion groove 264 of the plurality of groove-type protrusions 262. . In this way, the adhesive liquid 300 is discharged not only through the hollow protrusions 261 but also through the grooved protrusions 262 .

As the adhesive liquid 300 is released from the top of each hollow protrusion 261 , the adhesive liquid 300 may be insufficient in the outer circumferential portion of the plug between the hollow protrusions 261 . When the adhesive liquid 300 flows out through the protruding grooves 264 formed in each of the plurality of groove-type protrusions 262, the adhesive liquid 300 can be sufficiently applied to the outer peripheral surface of the plug between the hollow protrusions 261. Thereby, the entire knife block can be more uniformly and strongly fixed to the perforation hole 410 of the building wall 400.

The slot portion 230 is a portion located between the first concave-convex portion 220 and the second concave-convex portion 250, and has two slots 231 long open in the longitudinal direction of the plug 200 on its outer circumferential surface. is formed The adhesive liquid 300 applied inside the plug 200 is discharged to the outer circumferential portion of the body portion 130 through at least one slot 231 . The largest amount of adhesive liquid 300 is discharged from the plug 200 through the slot portion 230 . Among the various layers of the wall 400 in which the perforation hole 410 is formed, the portion in contact with the slot portion 230 is the insulation layer 430 made of Styrofoam, and the adhesive liquid 300 released from the slot portion 230 forms the insulation layer. The bonding force between the 430 and the knife block is improved. The heat insulating layer 430 has a characteristic that the adhesive liquid 300 permeates due to the characteristics of its material, so a large amount of the adhesive liquid 300 is required.

The middle flat portion 240 is a portion in which the outer circumferential surface is formed flat between the first concave-convex portion 220 and the second concave-convex portion 250, and is a portion coupled to the body portion 130 of the screw 100. . The middle flat portion 240 is located at the perforated hole insulation layer 430 made of Styrofoam, so that the insulation layer 430 made of Styrofoam, which is vulnerable to impact, is not damaged due to the plurality of protrusions 260. The slot portion 230 is a portion connected to the first concave-convex portion 220 , and the intermediate flat portion 240 is a portion connected to the second concave-convex portion 250 .

3 is an enlarged view of a portion of the knife block shown in FIG. 2; Referring to FIG. 3, the adhesive liquid 300 applied inside the plug 200 comes out of the plug 200 through the protruding hole 263 and the protruding groove 264 due to the rotation and insertion of the screw 100. It is filled between the outer circumferential surface of the 200 and the inner circumferential surface of the perforation hole 410. When the screw 100 is further inserted into the plug 200 and completely inserted so that the screw 100 protrudes from the plug 200, the knife block blocks even strong vibrations such as earthquakes from the protruding hole 263 and the protruding groove 264 A sufficient amount of the adhesive liquid 300 can be released so that the fixing force can be firmly maintained.

4 to 7 are diagrams showing each process of a building earthquake-resistant reinforcement method according to an embodiment of the present invention. 4 to 7 show each step of the building earthquake-resistant reinforcement method using the above-described building wall reinforcement knife block. 4 to 7, the building earthquake-proof reinforcement method according to the present embodiment includes a drilling step, an adhesive liquid injection step, a plug insertion step, and a screw insertion step.

Figure 4 is a view showing a state after completion of the drilling step of the building seismic reinforcement method according to an embodiment of the present invention. In the drilling step, a drilling hole 410 is formed in the building wall 400 by drilling the building wall 400 using a drill. The length of the perforated hole 410 is longer than the length of the plug 200, and preferably longer than the length of the screw 100. After marking the installation location on the wall 400, for example, a drilling hole 410 can be formed using a hammer drill, and after the drilling hole 410 is created, foreign substances such as debris inside the drilling hole 410 are removed. process can be added. As shown in FIGS. 4 to 7 , the building wall 400 has a layered structure of an outer wall layer 420, a heat insulation layer 430, and an inner wall layer 440. Generally, the outer wall layer 420 is made of a brick material, the heat insulating layer 430 is made of a Styrofoam material, and the inner wall layer 440 is made of a concrete material.

5 is a view showing a plug insertion state of a building earthquake-resistant reinforcement method according to an embodiment of the present invention. In the adhesive liquid injection step, before inserting the plug 200 into the wall 400, the adhesive liquid 300 is injected into the plug 200. In the plug insertion step, the plug 200 into which the adhesive liquid 300 is injected is inserted into the perforated hole 410 of the building wall 400. As shown in FIG. 5, in the plug 200, the first uneven portion 220 is located on the outer wall layer 420 made of brick, and the body 130 is located on the insulating layer 430 made of Styrofoam. and is inserted into the perforation hole 410 of the building wall 400 so that the second concave-convex portion 250 is positioned on the inner wall layer 440 made of concrete. Accordingly, damage to the portion of the heat insulating layer 430 made of Styrofoam can be prevented.

Figure 6 is a view showing the state of screw insertion of the building seismic reinforcement method according to an embodiment of the present invention. In the screw insertion step, the plug 200 into which the adhesive liquid 300 is injected is inserted into the screw 100 in a state where the plug 200 into which the adhesive liquid 300 is injected is located inside the drilled hole 410 of the building wall 400 insert inside While inserting the screw 100 into the plug 200, the first concave-convex portion 220 and the second concave-convex portion 250 are bent in the radial direction, and a plurality of protrusions 260 adhere to the perforated hole 410. , The adhesive liquid 300 applied to the inner circumferential surface of the plug 200 is released from the protruding hole 263 and then cured to fix the plug 200 and the screw 100 to the perforation hole 410 . The plurality of protrusions 260 on the outer circumferential surface of the plug 200 are formed by the adhesive liquid released through the protrusion holes 263 formed on each of the plurality of protrusions 260 on the outer circumferential surface of the plug 200. The outer wall layer of the building wall 400 ( 420), the heat insulating layer 430, and the inner wall layer 440 are adhesively bonded.

6 shows a state in which the screw 100 is inserted to a depth of about half of the plug 200. Due to the insertion of the screw 100, a plurality of incision grooves 221 are opened, and accordingly, it can be confirmed that the first concave-convex portion 220 and the second concave-convex portion 250 are bent in the radial direction. As the screw 100 is inserted, the adhesive 300 inside the plug 200 is pushed out from other places inside the plug 200 or from the inside of the plug 200 to the outside, and the inside and outside of the plug 200 It can be applied evenly. In addition, the adhesive liquid 300 may flow out of the protruding holes 263 and fill gaps and gaps between the perforation holes 410 having irregular irregularities.

7 is a view showing a state after completion of the screw insertion step of the building earthquake-resistant reinforcement method according to an embodiment of the present invention. 7, as the first concave-convex portion 220 and the second concave-convex portion 250 are radially stretched by the insertion of the screw 100 into the plug 200, the first concave-convex portion 220 And the protrusions 260 of the second concave-convex portion 250 are press-fitted into the inner circumferential surface of the perforation hole 410, and the adhesive liquid 300 flows out, and the protrusions 260 of the first concave-convex portion 220 and the second concave-convex portion 250 ) Can be strongly press-fitted to the inner circumferential surface of the perforated hole 410. Accordingly, the fixing force of the knife block can be firmly maintained even in strong vibrations such as earthquakes.

When the drilling hole 410 is formed in the wall 400 using a drill, the inner circumferential surface of the drilling hole 410 is uneven and irregular, and there are many small gaps in the irregular surface. In addition, in the case of a wall made of layers, the degree of unevenness is different depending on the material of each layer. Due to these irregularities and gaps, even if the knife block is installed, it is likely to fall off soon. In the process of inserting the knife block into the building wall 400, the first concave-convex part 220 and the second concave-convex part 250 are opened and fixed primarily. After that, the plurality of protrusions 260 formed on the first concave-convex portion 220 and the second concave-convex portion 250 are inserted into the uneven and irregular irregularities of the inner circumferential surface of the perforation hole 410 and are secondarily fixed. Subsequently, the adhesive liquid 300 leaking from the plurality of protruding holes 263 is injected into the irregularities thirdly, so that the knife block can have a very strong fixing force. After the screw insertion step, additional fixing force may be further increased by performing a finishing operation of covering the head 110 of the screw 100 with a finishing material so that it is not visible from the outside of the wall surface.

Due to the strong fixing force of the knife block using the building seismic reinforcement method according to the present embodiment, cracking of the building wall 400 due to earthquake, wind load, ground subsidence, self-load, etc. is prevented, and drilling holes formed over a long time ( 410) It is possible to secure the stability of the building wall 400 by preventing abrasion. Since seismic reinforcement construction is possible only by inserting a knife block into the drilling hole 410 after drilling the wall 400, it is possible to perform earthquake-proof reinforcement construction for the building wall 400 simply and conveniently within a short time.

So far, the present invention has been looked at with respect to its preferred embodiments. Those skilled in the art to which the present invention pertains will be able to understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered from an illustrative rather than a limiting point of view. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent scope will be construed as being included in the present invention.

100 ... screws
110 ... head
120 ... first screw thread
130 ... torso
140 ... 2nd screw thread
200 ... plug
210 ... entrance
220 ... first concavo-convex part
221 ... notch
230 ... slot part
231 ... slot
240 ... medium flat part
250 ... 2nd uneven part
260 ... projection
261 ... hollow projection
262 ... grooved projection
263 ... protrusion
264 ... projection groove
300 ... adhesive liquid
400 ... wall
410 ... perforated hole
420 ... outer wall layer
430 ... insulation layer
440 ... inner wall layer

Claims (9)

A plug 200 formed in a cylindrical shape having a plurality of protrusions 260 on an outer circumferential surface and inserted into the perforation hole 410 of the building wall 400; and
A screw 100 inserted into the plug 200 in a state where the adhesive liquid 300 is located inside the plug 200 inserted into the drilled hole 410 of the building wall 400,
Each of the plurality of projections 260 on the outer circumferential surface of the plug 200 is formed with a protrusion hole 263 that sequentially penetrates the cylindrical body of the plug 200 and each of the projections 260,
In the process of inserting the screw 100 into the plug 200 in a state where the adhesive liquid 300 is located inside the plug 200, the adhesive liquid 300 inside the plug 200 is the screw ( 100 is discharged through the protrusion hole 263 formed in each of the plurality of protrusions 260 on the outer circumferential surface of the plug 200,
The plurality of protrusions 260 on the outer circumferential surface of the plug 200 are arranged in a matrix form along a row direction corresponding to the circumferential direction of the outer circumferential surface of the plug 200 and a column direction corresponding to the longitudinal direction of the outer circumferential surface of the plug 200, there is,
The plurality of protrusions 260 on the outer circumferential surface of the plug 200 are protrusion holes 263 penetrating each protrusion 260 in the height direction of each protrusion 260 after penetrating the cylindrical body of the plug 200. A plurality of hollow projections 261 having a structure formed therein,
Between adjacent rows of the plurality of hollow projections 261, a plurality of groove-type projections 262 each having a projection groove 264 concavely dug in the circumferential direction of the outer circumferential surface of the plug 200 is formed. become,
The adhesive liquid 300 inside the plug 200 is applied to the outer circumferential portion of the plug between adjacent rows of the plurality of hollow protrusions 261 through the respective protrusion grooves 264 of the plurality of groove-type protrusions 262. A building wall reinforcement knife block characterized in that it is released. delete delete delete According to claim 1,
The plug 200 is
a first concave-convex portion 220 in which some of the plurality of protrusions 260 are formed on an outer circumferential surface;
a second concave-convex portion 250 having the rest of the plurality of protrusions 260 formed on an outer circumferential surface thereof; and
A building wall reinforcement knife block comprising an intermediate flat portion 240 having an outer circumferential surface formed flat between the first concave-convex portion 220 and the second concave-convex portion 250. According to claim 5,
The plug 200 is
Further comprising a slot portion 230 in which at least one slot 231 is formed on an outer circumferential surface of the plug 200 in the longitudinal direction of the long opening,
Building wall reinforcement knife block, characterized in that the adhesive liquid 300 inside the plug 200 is released to the outer circumferential portion of the intermediate flat portion 240 through the at least one slot 231. According to claim 5,
An incision groove 221 long in the longitudinal direction of the plug 200 is formed in the first concave-convex portion 220,
In the process of inserting the screw 100 into the plug 200, the cutout 221 of the first concave-convex portion 220 is formed according to the difference between the inner diameter of the plug 200 and the outer diameter of the screw 100. Building wall reinforcement knife block, characterized in that the first concave-convex portion 220 is radially spread while being split by. According to claim 5,
An incision groove 221 long in the longitudinal direction of the plug 200 is formed in the second concave-convex portion 250,
In the process of inserting the screw 100 into the plug 200, the cutout 221 of the second concave-convex portion 250 is formed according to the difference between the inner diameter of the plug 200 and the outer diameter of the screw 100. Building wall reinforcement knife block, characterized in that the second concave-convex portion 250 is radially spread while being split by. In the building seismic reinforcement method using the building wall reinforcement knife block of claim 1,
A drilling step of forming a drilling hole 410 in the building wall 400 by drilling the building wall 400 using a drill;
An adhesive liquid injection step of injecting an adhesive liquid 300 into the plug 200;
A plug insertion step of inserting the plug 200 into which the adhesive liquid 300 is injected into the perforation hole 410 of the building wall 400; and
In a state where the plug 200 into which the adhesive liquid 300 is injected is located inside the perforation hole 410 of the building wall 400, the screw 100 is inserted into the plug 200 into which the adhesive liquid 300 is injected. Including a screw insertion step to be inserted inside,
The building wall has a layer structure of an outer wall layer 420, a heat insulation layer 430, and an inner wall layer 440, and the protrusion hole 263 formed on each of the plurality of protrusions 260 on the outer circumferential surface of the plug 200 The plurality of protrusions 260 on the outer circumferential surface of the plug 200 are adhesively bonded to the outer wall layer 420, the heat insulating layer 430, and the inner wall layer 440 by the adhesive liquid released through the building. Seismic Reinforcement Method.

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