KR20200054496A - A fixing bolt for external panel of structures and constructing method using the same - Google Patents

Abstract

The present invention relates to a bolt for fixing an exterior material of a building and a method for constructing an exterior material using the same, which can improve construction efficiency and safety. According to the present invention, the method for constructing an exterior material comprises the steps of: attaching an insulation material onto a concrete wall; forming a perforation hole; cleaning dust within the perforation hole; cutting a part of the insulation material; preparing an arrangement space; inserting a bracket into the arrangement space; applying an epoxy adhesive; fixing a spiral part of a fixing bolt; and fixing an exterior material.

Description

Bolt for fixing the exterior of building materials and construction method of exterior materials using the same {A FIXING BOLT FOR EXTERNAL PANEL OF STRUCTURES AND CONSTRUCTING METHOD USING THE SAME}

The present invention relates to a bolt for fixing a building exterior material and a method for constructing a exterior material using the same, and more specifically, to improve the spiral structure of the fixing bolt that is inserted into the concrete wall and the ceiling to support the exterior material, and to improve the spiral structure of the fixing bolt. The present invention relates to a bolt for fixing an exterior material of a building and an exterior material construction method using the same, which are firmly attached through a construction method of fixing together with an adhesive to a spiral portion, thereby improving support capacity and improving construction efficiency.

In general, as a method for fixing signboards and various exterior materials attached to a concrete structure, a hole is drilled in the wall using a concrete drill, and then the anchor portion of the anchor bolt is introduced into the hole drilled in the wall, and then the sleeve of the anchor portion is expanded. It is divided into a fixing method in which an anchor bolt is fixed to be fixed in a hole, and a fixing method in which a spiral fixing part of a bolt is rotated through a hole drilled in the wall to fasten a bolt fixing the spiral part directly into the wall.

However, in the case of the above method, the process of expanding the sleeve of the anchor portion by directly hitting it with a hammer or the like is complicated, and the fixing portion is fixed by being anchored in concrete, and the working process is complicated and the fixing portion is concentrated on the anchor portion. Therefore, there is a problem in that it is inadequate to fix the exterior material having a large weight due to a weak binding force.

In addition, in the latter case, the spiral part flows into the hole drilled in the concrete wall, and the thread is screwed into the concrete wall.

In order to prevent the latter problem, it is prevented from being separated by vibration by applying an adhesive to the spiral of the bolt, but it is required to improve the structure so as to maintain a more stable binding force and ensure safety through efficient construction. .

Republic of Korea Registered Patent No. 10-1564715 (2015.11.03.announcement) Republic of Korea Registered Patent No. 10-1579444 (2015.12.28.announcement) Republic of Korea Registered Patent No. 10-1584695 (2016.01.12. Announcement) Republic of Korea Patent Publication No. 10-2011-0008889 (2011.01.27. Published) Republic of Korea Utility Model No. 20-1987-0001239 (Apr. 28, 1987)

Therefore, the present invention, for the defects and shortages of the prior art, the structure is simple and reasonable, and improves the shape of the acid to improve the pull-out force and to prevent loosening due to vibration and shock, and fill grooves in the spiral portion of the fixing bolt By providing a filling space for the epoxy adhesive for tiles and stone and improving the adhesion, the spiral part of the fixing bolt, which is inserted into the concrete wall and the ceiling, is fixed very firmly to improve the support capacity to safely fix the exterior material. Provides bolts for fixing exterior materials of buildings and methods for exterior materials using the same to improve the construction efficiency and safety through the construction method that the spiral part of the improved fixing bolts are securely fixed together with the adhesive and the exterior materials can be securely fixed. Has its purpose.

The bolt for fixing the exterior material of a building of the present invention is a bracket having a through hole formed in the center and a vertical part while maintaining a distance equal to the thickness of a heat insulating material adhered to the concrete wall and fixed with an adhesive to the tip inserted into a perforated hole formed in the concrete wall. To the head portion formed at the rear end of the spiral portion to firmly squeeze the vertical portion so as to fix the exterior material by using the spiral portion which sequentially forms the 'a'-shaped angle formed in the through-hole, and the horizontal portion of the bracket and the angle In the bolt formed, the head portion is formed integrally with the spiral portion, or is formed to be fastened by forming a female screw at the head portion and a male screw at the rear end of the spiral portion to fasten the screw; The spiral portion is made of a two-row screw with a first thread having a high height and a second thread having a low height; The first screw thread is made of a saw blade shape to prevent loosening by forming a protruding curved surface at the front and a slender curved surface at the rear so that the ridge portion of 1/2 or more is smoothly embedded in the concrete wall when it is rotated and introduced into the perforated hole; The second screw thread is 1/4 to 1/6 smaller than the height of the first screw thread and protrudes from the bottom of the bone so that the ridge portion is in contact with the circumferential surface of the perforation hole or is pressed about 1/5 to maintain the center for smooth rotation of the first screw thread. And it is made to provide a filling space of the tile, stone epoxy adhesive; A technical feature of the technical configuration may be to improve the adhesion by further forming a filling groove to further secure a filling space of the adhesive under the bone between the first thread and the second thread of the spiral portion.

In addition, the construction method of the exterior material using a bolt for fixing the exterior material of a building of the present invention comprises the steps of attaching an insulating material on a concrete wall that is a wall or a ceiling or attaching it with a special adhesive; Forming a perforation hole with a concrete drill on the cured concrete wall penetrating through the heat insulating material; Cleaning the dust inside the perforated hole formed in the concrete wall with an air spray gun; Cutting a portion of the insulating material using a cutting knife so that a supporting bracket for maintaining the thickness is inserted so that the insulating material is not compressed; Separating the cut insulation material cut by the cutting knife to provide a placement space for fitting a bracket; Placing and fitting a bracket into the arrangement space formed in the heat insulating material; The process of injecting the epoxy adhesive into the perforated hole formed in the concrete wall using the supply nozzle or accommodating container or by placing the vertical part of the angle toward the head of the fixing bolt and placing the epoxy adhesive on the spiral tip of the fixing bolt Injecting or applying an epoxy adhesive consisting of only one of the processes of applying; The spiral part of the fixing bolt is inserted into the drilling hole by using an unillustrated impact drill so that the epoxy adhesive is applied or uncoated to enter and fasten the spiral portion of the fixing bolt to the hole formed in the concrete wall, and the vertical portion of the angle is inserted. After contacting the outer surface of the bracket, the epoxy adhesive is naturally hardened and fixed by filling the filling space formed between the first thread and the second thread of the fixing bolt and the filling groove formed under the bone. step; And it may be characterized in that it is made by combining the exterior material by using a vertical portion of the fixed angle in contact with the bracket and the head portion and the bracket of the fixing bolt.

The bolt for fixing the exterior material of a building of the present invention is simple and reasonable in structure, and is improved in the shape of a double-threaded thread having a large and small height of the screw thread, while improving the pull-out force by improving the shape of the first screw buried in the concrete of the filling hole to form a curved surface. It has an effect of preventing loosening due to vibration and shock, and also provides a basic filling space where the epoxy adhesive is located by contacting the circumferential surface of the perforated hole with a low-height second threaded ridge, while at the same time providing a first groove under the valley of the spiral Alternatively, the filling groove in which the second groove, the epoxy adhesive is located, is filled and filled. As the epoxy adhesive improves the adhesive strength of the fastening part of the fixing part of the fixing bolt, the screw part of the fixing bolt is very strong by the epoxy adhesive on the concrete wall and ceiling. It is possible to improve the support capacity to securely secure the exterior material. , Through the construction method of firmly fixing with a helical portion of the adhesive for an improved fixing bolts to provide an effect to improve the installation efficiency and safety.

1 is a perspective view showing a cut-out state of a part of a bolt for fixing a building exterior according to the present invention.
Fig. 2 is a sectional view of Fig. 1;
3 is an enlarged view of part 'A' of FIG. 1;
Figure 4 is a perspective view showing the fastening members for fixing the exterior material using a bolt for fixing the exterior material of a building according to the present invention.
5 is a partially enlarged cross-sectional view showing a state in which the exterior material is fixed to a concrete wall using bolts for fixing the exterior material for a building according to the present invention and fastening members for fixing the exterior material.
6 is an enlarged view of part 'B' of FIG. 5.
7 (A, B,) is a partially enlarged cross-sectional view showing another form of the filling groove formed under the bone of the spiral portion of the bolt for fixing the exterior of a building according to the present invention.
Figure 8 is a schematic diagram sequentially showing the process of fixing the exterior material using a bolt for fixing the exterior material of a building according to the present invention.
9 (A, B, C) is a photograph showing the process and results of the drawing test after the bolt for fixing the building exterior according to the present invention is fixed to the concrete wall with an adhesive.
10 is a cross-sectional view showing a state in which the air layer spacing is widely adjusted by screwing with a connecting member after separating and forming the rear end of the spiral portion of the bolt for fixing a building exterior material according to the present invention.
11 is a quality test report inspected by the Korea Construction Quality Testing Institute for the pull load of the general fixing bolt.

Hereinafter, the construction method, configuration, and operation of the present invention will be described in more detail based on the accompanying drawings. In describing the present invention, terms or words used in the present specification and claims are based on the principle that the inventor can appropriately define the concept of terms in order to best describe his or her invention. It must be interpreted as a meaning and concept consistent with the technical idea of.

First, a fixing device for fixing an insulating material according to the present invention will be described with reference to FIGS. 1 to 6.

According to the present invention, as shown in FIG. 5, the tip inserted into the perforated hole 11 formed in the concrete wall 1 is fixed by an epoxy adhesive 100 and the thickness of the insulating material 3 adhered to the concrete wall 1 While maintaining the distance, the bracket portion 21 through which the through-hole 41 is formed in the center and the spiral portion 21 through which the 'a'-shaped angle 5 in which the through-hole 511 is formed in the vertical portion 51 are sequentially inserted And, to the rear end of the spiral portion 21 so as to securely press and hold the vertical portion 51 so as to fix the exterior material 6 by using the bracket 4 and the horizontal portion 52 of the angle 5 The basic structure of the fixing bolt 2 made of the head 22 formed is used.

Thus, the fixing bolt (2) of the present invention is coupled to the perforation hole (11) of the concrete wall (1) to stably support the angle (5) for fixing the exterior material (6), and then loosened by vibration or shock The structure is improved so that it is cured together with the epoxy adhesive 100 for tiles and stones so that displacement does not occur while preventing separation due to damage or damage.

The fixing bolt 2 of the present invention is an embodiment, the head 22 of the fixing bolt 2 is formed integrally with the spiral portion 21, or formed separately as shown in FIGS. 2 and 6, the screw A female screw 221 is formed in the head portion 22 to be fastened, and a male screw 211 is formed at the rear end of the spiral portion 21 to be fastened to each other, and the spiral portion 21 is a first screw 21a having a large height. And a second thread 21b having a low height, which is made of a two-row screw.

In addition, of the fixing bolt (2) When the first thread 21a formed in the spiral portion 21 is rotationally introduced into the perforation hole 11 of the concrete wall 1 as shown in FIGS. ) To prevent loosening while moving smoothly, the front side is formed of a saw blade shape formed of a curved surface (24) and a slanted curved surface (24).

In addition, the second thread (21b) of the fixing bolt (2) is 1/4 to 1/6 smaller than the height of the first thread (21a) as shown in FIGS. It is made to provide a center holding and filling space 12 of the epoxy adhesive for smooth rotation of the first thread 21a by allowing the ridge part to be in contact with the circumferential surface of the hole 11 or to be driven about 1/5.

Further, the filling groove 26 of the epoxy adhesive 100 is further added to the bottom of the bone 25 between the first thread 21a and the second thread 21b formed in the spiral part 21 of the fixing bolt 2 It is made to improve adhesion by forming.

In addition, the filling groove 26 formed in the bone 25 between the first thread 21a and the second thread 21b formed in the spiral portion 21 of the fixing bolt 2 is shown in FIGS. It is formed on both sides of the second thread (21b) as in 6, or as shown in Figure 7 (A), the first groove 261 between the first thread (21a) and the second thread (21b) to form a number of grooves The filling space to which the epoxy adhesive 100 is applied is formed by forming a second groove 262 having an elongated shape connecting between the first thread 21a and the second thread 21b as shown in FIG. 7 (B). By expanding (12), the epoxy adhesive (100) is cured between the first acid (21a) and the second thread (21b) to further improve the adhesion, so that the fixing bolt (2) of the concrete wall (1) Since it is securely fixed to the perforated hole 11, it is made to prevent departure and to maintain a stable fixed state of the exterior material 6.

In addition, as shown in FIG. 4, the rear end portion and the head portion 22 of the spiral portion 21 of the fixing bolt 2 are separated and formed to be mutually fastened by a male screw 211 and a female screw 221, and in FIG. Likewise, the distance (T) between the heat insulating material (3) and the exterior material (6) while connecting the male screw (211) formed at the rear end of the spiral part (21) of the fixing bolt (2) and the female screw (221) formed at the head part (22) ) Is made by further providing a unit connecting member 7 formed for each size to increase the air layer.

The unit connecting member 7 is configured such that the distance T between the heat insulating material 3 and the exterior material 6 can be changed by 10 mm, and the horizontal portion of the angle 5 when the distance T changes (52) It also turns out that the change in length is also made, and the distance T between the heat insulating material 3 and the exterior material 6 is not limited to 10 mm, and the size can be changed.

Next, a construction method for fixing the exterior material 6 using the fixing bolt 2 to the concrete wall 1 according to the present invention will be described with reference to FIGS. 5, 8, and 10.

As a first process, the insulating material 3 is mounted on a concrete wall 1 that becomes a wall or a ceiling as shown in FIG.

Next, as shown in b) of Fig. 8, the insulating material 3 attached to the concrete wall 1 is penetrated in the horizontal or vertical direction and fixed to the cured concrete wall 1 with a concrete drill 81 to fix bolts (2) The helical portion 21 of the will form a perforated hole 11 to be fastened.

In addition, the depth of the perforation hole 11 is determined according to the thickness of the heat insulating material 3, and is determined so as to withstand the thickness, wind pressure, etc. of the exterior material 6 through a drawing test of the fixing bolt 2.

Next, as shown in c) of FIG. 8, dust remaining inside the perforation hole 11 formed in the concrete wall 1 is blown out using an air sprayer 82 to perform cleaning.

Next, as shown in d) of Figure 8, the insulating material 3 is not compressed or transformed, but the insulating material 3 is used using a cutting knife 83 so that a supporting bracket 4 for maintaining the thickness is inserted. It will be partially cut, and the cutting knife 83 is made in the same shape as the outer shape of the supporting bracket 4.

Next, as shown in (e) of FIG. 8, the insulated insulation 32 cut by the cutting knife 83 is separated to provide an arrangement space 31 through which the bracket 4 can be fitted.

Next, as shown in f) of FIG. 8, the bracket 4 is inserted into the arrangement space 31 formed in the heat insulating material 3 to be disposed.

Next, as shown in (g) of FIG. 8, the process or injecting the epoxy adhesive 100 into the perforation hole 11 formed in the concrete wall 1 using the supply nozzle 64 or the receiving container 85 Epoxy adhesive (100) to the tip of the spiral (21) of the bolt (2) The epoxy adhesive 100 made of any one of the coating processes is injected or applied.

On the other hand, the epoxy adhesive 100 to the tip of the spiral portion 21 of the fixing bolt (2) Before coating, the vertical portion 51 of the angle 5 should be placed in the head portion 22 of the fixing bolt 2 to be positioned to fix the exterior material 6.

And in the process of filling and applying the epoxy adhesive 100, the process of injecting the epoxy adhesive 100 into the supply nozzle 84 inside the perforated hole 11 formed in the concrete wall 1 and of the fixing bolt 2 It may include the step of all of the process of applying the receiving container 85 to the spiral portion (21).

Next, as shown in h) of FIG. 8, after passing through the spiral portion 21 of the fixing bolt 2 on which the epoxy adhesive 100 is applied or not applied to the through hole 41 of the bracket 4, It enters into the perforation hole 11 formed in the concrete wall 1 and is fastened. At this time, using the not shown impact drill to insert the spiral portion 21 of the fixing bolt (2) into the drilling hole 11, the vertical portion 51 of the angle (5) to the outer surface of the bracket (4) When fastened to be in contact, the epoxy adhesive 100 is formed in the filling space 12 between the first thread 21a and the second thread 21b of the fixing bolt 2 and the filling groove 26 formed in the underside of the bone 25 In the filled state, the spiral portion 21 of the fixing bolt 2 is fixed by natural curing for 4 to 12 hours, but it is preferable to harden the epoxy adhesive 100 for more than 24 hours for safety.

On the other hand, the epoxy adhesive 100 is used for tile and stone (underwater curing type, product name: EPO-THAN SEP-8000, manufacturer: Samchang Kiyeon Co., Ltd.), the subject and curing agent in a ratio of 1: 1 It will be used in combination.

As a final process, as shown in FIG. 10, the exterior material using the vertical portion 21 of the angle 5 fixed in contact with the spiral portion 21 and the head portion 22 and the bracket 4 of the fixing bolt 2 (6) is combined, and the gap between the exterior material 6 and the exterior material 6 is filled with silicone or mortar (not shown) to finish.

Therefore, the fixing bolt 2 of the present invention constructed through the construction method is formed of double threads, and is filled after the spiral portion 21 is fastened to the hole 11 formed in the concrete wall 1 The fixing bolt (2) by strengthening the adhesive strength obtained through curing of the epoxy adhesive (100) and filling the epoxy adhesive (100) in the filling groove (26) formed in the bone (25) of the space (12) and the fixing bolt (2) ) To prevent loosening, as well as to maintain a fixed state in the perforated hole 11 formed in the concrete wall (1).

Next, when comparing the drawn load of the fixed fixing bolt (2) of the present invention with the drawn load of a general fixing bolt (set anchor car 3/8), the quality test report inspected by the Korea Construction Quality Testing Institute as shown in FIG. As can be seen in the drawing load of the general fixing bolt (set anchor car 3/8) is confirmed to be 19.6KN, the present invention is a perforation formed in the concrete wall (1) as in the construction method as shown in Figure 9 (A) As a result of measuring the fastening bolt (2) of the same standard (set anchor car 3/8) coated with the epoxy adhesive (100) on the hole (11) and curing for 48 hours after installation, the result was measured by mounting the drawing test equipment. Since it can be confirmed that cracking starts in concrete as in FIG. 9 (C) from when a draw load of 32.96KN occurs as in B), the improved fixing bolt 2 of the present invention is firmly fixed and very stable. It can be confirmed that it has been improved.

Although it has been described and illustrated in connection with the preferred embodiment of the present invention, it is not limited to the configuration and operation as described and described above. Therefore, since it is possible for those skilled in the art to understand that the above embodiments can be appropriately modified and modified, appropriate changes, modifications, and equivalents should be regarded as falling within the scope of the present invention.

1: Concrete wall 11: Perforated hole
12: filling space 100: epoxy adhesive
2: Fixing bolt 21: Spiral part
21a: First thread 21b: Second thread
22: head 211: male thread
221: female thread 23: protrusion surface
24: slender surface 25: under the goal
26: filling groove 261: hole 1
262: second hole 3: insulation
31: Placement space 4: Bracket
41: through hole 5: angle
51: vertical part 52: Sufeng part
511: through hole 6: exterior material
7: Connecting member 81: Concrete drill
82: Air spray gun 83: Jaldan knife
84: supply nozzle 85: accommodation container
T: thickness

Claims (5)

The front end inserted into the perforation hole 11 formed in the concrete wall 1 is fixed by the epoxy adhesive 100 and maintains the distance as much as the thickness of the heat insulating material 3 adhered to the concrete wall 1, through-hole in the center (41) the bracket (4) and the spiral portion (21) for sequentially fitting the 'a'-shaped angle (5) forming a through hole (511) in the vertical portion (51), and the bracket (4) and To the head portion 22 formed at the rear end of the spiral portion 21 so as to firmly squeeze the vertical portion 51 so that the exterior material 6 can be fixed using the horizontal portion 52 of the angle 5 In the fixing bolt (2) made,
The head portion 22 of the fixing bolt 2 is formed integrally with the spiral portion 21, or a female screw 221 is provided at the head portion 22 so as to be screwed, and a male screw 211 is provided at the rear end of the spiral portion 21. ) Is formed to be fastened to each other;
The spiral portion 21 is made of a two-row screw with a first thread 21a having a high height and a second thread 21b having a low height;
When the first thread (21a) is rotated and introduced into the perforated hole 11, the ridge portion of the ridge of 1/2 or more moves smoothly in the concrete wall 1 to prevent the loosening while moving forward, forming a protruding curved surface 23 The back side is made of a saw blade shape formed by a slender curved surface 24;
The second thread (21b) is 1/4 to 1/6 smaller than the height of the first thread (21a) protruding from the base (25), the ridge portion on the circumferential surface of the perforation hole (11) or about 1/5 It is made to be pushed to provide a center holding and filling space 12 of the epoxy adhesive for smooth rotation of the first thread 21a;
It is made to further improve the adhesion by forming a filling groove 26 of the epoxy adhesive 100 in the bone 25 between the first thread 21a and the second thread 21b of the spiral portion 21 A bolt for fixing a building exterior.
According to claim 1, Filling groove (26) formed in the bone (25) between the first thread (21a) and the second thread (21b) formed in the spiral portion (21) of the fixing bolt (2) The first groove 261 or the first thread 21a and the second thread 21b formed on both sides of the second thread 21b or formed between the first thread 21a and the second thread 21b A bolt for fixing a building exterior, characterized in that it is made of any one of the elongated second grooves 262 connecting therebetween and improves adhesion through enlargement of the filling space 12 of the epoxy adhesive 100.
The method according to claim 1, wherein the rear end portion and the head portion (22) of the spiral portion (21) of the fixing bolt (2) are separately formed to be mutually fastened by a male screw (211) and a female screw (221);
The gap (T) between the insulating material 3 and the exterior material 6 while connecting the male screw 211 formed at the rear end of the spiral portion 21 of the fixing bolt 2 and the female screw 221 formed at the head portion 22 Bolt for fixing the exterior of the building, characterized in that further provided with a unit connecting member (7) formed by size to increase the air layer by adjusting the.
In the construction method for fixing the exterior material (6) using a fixing bolt (2) to the concrete wall (1),
a) attaching the insulating material 3 on the concrete wall 1 serving as a wall or ceiling, or attaching it with a special adhesive;
b) forming a perforation hole 11 with a concrete drill 81 on the concrete wall 1 cured through the heat insulating material 3;
c) cleaning the dust inside the perforated hole 11 formed in the concrete wall 1 with an air spray gun 82;
d) cutting a portion of the insulating material 3 using a cutting knife 83 so that the supporting bracket 4 for maintaining the thickness so that the insulating material 3 is not compressed is inserted;
e) separating the cut insulation 83 cut by the cutting knife 83 to provide a placement space 31 through which the bracket 4 can be fitted;
f) inserting and placing the bracket 4 into the arrangement space 31 formed in the heat insulating material 3;
g) The process of injecting the epoxy adhesive 100 into the hole 11 formed in the concrete wall 1 using the supply nozzle 64 or the receiving container 85 or the vertical portion 51 of the angle 5 ) To the head portion 22 of the fixing bolt (2) and placed the epoxy adhesive (100) on the tip of the spiral portion (21) of the fixing bolt (2) Injecting or applying the epoxy adhesive 100 consisting only of any one of the process of applying;
h) The impact drill not shown to be fastened by introducing the epoxy adhesive 100 into the perforated hole 11 formed in the wall 1 of concrete to apply the spiral 21 of the fixing bolt 2 that is not coated or applied. Insert the spiral portion 21 of the fixing bolt (2) into the perforation hole (11), and make the vertical portion (51) of the angle (5) contact the outer surface of the bracket (4), and then use the epoxy The adhesive 100 is fixed to the filling groove 26 formed in the filling space 12 and the bone 25 between the first thread 21a and the second thread 21b of the fixing bolt 2 in the fixed state Fixing the spiral portion 21 of the dragon bolt 2 by natural curing; And
It is made by combining the exterior material (6) by using the vertical part (21) of the angle (5) fixed in contact with the bracket (4) and the head part (22) and the bracket (4) of the fixing bolt (2) Construction method of the bolt for fixing the exterior of the building, characterized in that.
According to claim 4, In the process of step g), the process of injecting the epoxy adhesive (100) into the supply nozzle (84) inside the perforation hole (11) formed in the concrete wall (1) and of the fixing bolt (2) Construction method of a bolt for fixing a building exterior, characterized in that it comprises the step of applying all of the process of applying the receiving portion (85) to the spiral portion (21).

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