KR100882022B1 - Connection device and connection device set for exposed concrete - Google Patents

Abstract

A connecting member and a connecting member set for exposed concrete are left after hardening the concrete in order to give decorative effect and have grooves and elastic members in order to improve waterproof effect against the water flowing in between the connecting member and the concrete. A connecting member for exposed concrete comprises a body(110) which includes an insertion part(130) in which a supporting shaft is inserted inside, and a waterproof groove(120) and a decoration part(140) formed on the outside surface in the circumferential direction, and an elastic member(121) which is partly inserted in the waterproof groove.

Description

CONNECTION DEVICE AND CONNECTION DEVICE SET FOR EXPOSED CONCRETE}

The present invention relates to a fastening member and a fastening member set for exposed concrete, and in particular, the fastening member used in the construction of the exposed concrete does not separate from the exposed concrete even after separation of the formwork, and thus the work is convenient, and the waterproofing is good due to the fastening member. It relates to a fastening member and a fastening member set for exposed concrete that can have an effect and a decorative effect.

Recently, according to the design of architects, the number of buildings expressing exposed concrete on the exterior walls of buildings is increasing.

Apart from the aesthetic meaning or the ideological background of exposed concrete, there is an advantage to provide the texture of various exposed surfaces that can be used as interior and exterior of a building, and its use is increasing in recent years.

Exposed concrete has excellent durability if proper maintenance is performed, and has the advantage of producing the desired surface shape according to the form of the formwork.

Since the construction of exposed concrete is both a frame construction and a finishing construction, it is significantly different from the general concrete construction method in terms of its construction method, and the work of assembling formwork, maintaining the spacing of panels, placing concrete, and curing after demolding are carefully performed. It must be treated and high precision maintained to obtain perfect exposed concrete.

Therefore, conventionally, when the exposed concrete is constructed, the gap between the inner formwork and the outer formwork is kept constant by using a synthetic resin cone (i.e., a fastening member) and a support shaft, and concrete is poured between them to obtain excellent exposed concrete walls. .

At this time, the cone and the support shaft is embedded in concrete.

If it is left as it is not aesthetically good, there is a problem that the water introduced through the gap between the cone and concrete from the outside is introduced into the interior along the support shaft.

In order to solve this problem, conventionally, in order to increase the waterproofing effect at the same time as the demoulding operation of the inner formwork and the outer formwork, the cone is removed and the mortar having a waterproof effect is filled in place or the plug is purchased.

However, the above method is because the construction process takes a long time because the work process is added, the workability was less that much, and the removal of the cone was also inconvenient.

The present invention does not separate the fastening member used in the construction of the exposed concrete from the exposed concrete even after the separation of the formwork, the work process is convenient and the construction period is shortened, forming a waterproof groove on the outer peripheral surface of the fastening member and insert the elastic member And by forming a partition inside the fastening member is an object to provide a fastening member and a fastening member set for the exposed concrete excellent waterproof effect.

In order to achieve the above object, the fastening member for exposed concrete of the present invention has a fastening member for exposed concrete that is fastened to a support shaft having threaded ends formed at both sides thereof, wherein the fastening member is inserted into which the support shaft is inserted. The body portion is formed, the outer peripheral surface of the body portion is characterized in that the waterproof groove formed in the circumferential direction.

The fastening member further includes an elastic member inserted into the waterproof groove to protrude outward from the body portion.

The fastening member further includes a decorative part having various shapes and formed on the opposite side to which the support shaft is fastened.

The insertion portion may include a first insertion groove in which a screw line is formed on an inner side surface and the support shaft is inserted; A second insertion groove formed on an opposite side of the first insertion groove and having a screw line formed on an inner side thereof; A partition wall is formed between the first insertion groove and the second insertion groove to divide the insertion groove into the first insertion groove and the second insertion groove.

The waterproof groove has a closed curve along the outer circumferential surface of the body portion.

The body portion is made of stainless steel.

Exposed concrete fastening member set of the present invention, the rod-shaped support shaft; Consists of a fastening member coupled to both sides of the support shaft, the support shaft and the fastening member is formed integrally, the fastening member is formed with a second insertion groove having a screw thread on the inner side of the opposite side coupled to the support shaft It is composed of a body portion, characterized in that the waterproof groove is formed in the circumferential direction on the outer peripheral surface of the body portion.

The fastening member further includes an elastic member inserted into the waterproof groove to protrude outward from the fastening member.

The fastening member may further include a decorative part having various shapes and formed on an opposite side to which the support shaft is fastened.

According to the fastening member and fastening member set for exposed concrete of the present invention as described above has the following effects.

First, since a plurality of waterproof grooves are formed on the outer circumferential surface of the body portion, the waterproof effect against water that can flow between the concrete and the fastening member is good.

Second, the elastic member is inserted into the waterproof groove so that the elastic member is compressed during curing of the exposed concrete so that there is no gap, the waterproof effect is better.

Third, since the fastening member does not separate even if the exposed concrete is hardened, a pattern is formed on the outer surface of the exposed concrete according to the shape of various decorative parts, so that the aesthetic effect is excellent.

Fourth, since the partition wall is formed between the first insertion groove and the second insertion groove formed in the body portion, it is convenient to insert another member into the first insertion groove and the second insertion groove of the fastening member, by the partition wall The waterproof effect on the water introduced into the second insertion groove is improved.

Fifth, since it is made of stainless steel, even if the fastening member is inserted into the exposed concrete, it does not rust.

Sixth, the fastening member set for exposed concrete is formed by inserting a support shaft into the first insertion groove of the fastening member so that the work shaft is not connected to the fastening member so that the work is convenient and the time is shortened.

Seventh, the fastening member set for exposed concrete also has an excellent waterproof effect by forming a waterproof groove on the outside of the fastening member and inserting an elastic member.

Eighth, because the decorative member is formed on the fastening member fastening member set for exposed concrete, there is an effect that the outer wall of the exposed concrete is decorated.

First embodiment

1 is a perspective view of a fastening member for exposed concrete according to a first embodiment of the present invention, Figure 2 is a cross-sectional view of Figure 1, Figure 3 is a perspective view of the coupling member and the support shaft coupled state, Figure 4 is an exposed concrete It is sectional drawing at the time of manufacture, FIG. 5 is sectional drawing of the state of FIG. 4 removed, FIG. 6 is a perspective view of FIG. 5, and FIG.

As shown in Figures 1 to 2, the exposed concrete fastening member 100 of the present invention is composed of a body portion 110, an elastic member 121 and the decorative portion 140 and the like.

As shown in FIG. 4, the fastening member 100 is installed inside the outer formwork 300 and the inner formwork 400 during the construction of the exposed concrete together with the support shaft 200 to maintain a constant thickness of the exposed concrete. Etc.

The body portion 110 may be formed in a cone shape, but in this embodiment, it is formed in a cylindrical shape.

Because in the present embodiment, unlike the prior art, the fastening member 100 does not need to be separated during construction of the exposed concrete, so it is not necessary to form a difficult cone shape.

Therefore, the body portion 110 is easier to manufacture than the existing cone for exposed concrete.

The outer circumferential surface of the body portion 110 is formed with a plurality of waterproof grooves 120 in the circumferential direction.

In this embodiment, the waterproof groove 120 is formed in a closed curve along the outer circumferential surface of the body portion 110.

Therefore, as shown in FIG. 2, when the cross section of the fastening member 100 is seen, the outer circumferential surface of the body portion 110 is formed in a rectangular sawtooth shape by the waterproof groove 120, so that the body portion 110 is formed. The water introduced from the outside along the outer circumferential surface of the) is not easily flowed into the interior by the waterproof groove 120 is formed stepped.

In addition, a ring-shaped elastic member 210 formed of rubber or the like is inserted into the waterproof groove 120.

At this time, the thickness of the elastic member 121 is formed thicker than the depth of the waterproof groove 120 is inserted into the waterproof groove 120, it is inserted to protrude in the outward direction of the body portion (110).

Therefore, as shown in FIG. 4, the elastic member 121 is compressed by the pressure of the concrete 800 during construction of the exposed concrete to generate an elastic restoring force. As a result, the elastic member 121 is the concrete 800. ) Is strongly adhered to the body portion 110 and the gap between the fastening member 100 and the concrete 800 is almost eliminated, so that the waterproof effect is better.

As shown in FIG. 2, an insertion part 130 into which the support shaft 200 is inserted is formed in the body part 110.

The insertion part 130 includes a first insertion groove 131, a second insertion groove 132, and a partition wall 133.

A screw thread is formed on an inner surface of the first insertion groove 131 to insert the support shaft 200.

That is, the fastening members 100 are inserted into and fastened to both sides of the support shaft 200 on which the screw lines are formed.

The second insertion groove 132 is formed on the opposite side of the first insertion groove 131, the screw thread is formed on the inner surface of the second insertion groove 132.

As shown in FIG. 4, the second insertion groove 132 has an outer side of the outer mold 300, and the inner side of the outer mold 300 and the inner mold 400. The inner fastening part 700 is inserted into the inner mold 400 from the outside to fix the fastening member 100.

In addition, the partition wall 133 is formed between the first insertion groove 131 and the second insertion groove 132, the insertion portion 130, the first insertion groove 131 and the second insertion groove ( 132).

Therefore, the partition wall 133 limits the insertion length of the support shaft 200 when the support shaft 200 is inserted into the first insertion groove 131.

In addition, the partition wall 133 prevents water from flowing into the body 110 along the inner surface of the second insertion groove 132 through the second insertion groove 132.

Therefore, the partition wall 133 has an excellent waterproof effect on the water flowing into the concrete 800 together with the waterproof groove 120 and the elastic member 121.

On the opposite side to which the support shaft 200 is fastened among the body parts 110 of the fastening member 100, the decoration part 140 is formed on the outer side of the second insertion groove 132 in detail.

The decoration part 140 has various shapes, and as shown in FIG. 6, the decoration part 140 is a part that is exposed to the outer surface of the exposed concrete as it is and the wall surface of the exposed concrete according to the shape of the decoration part 140. This is decorated.

As shown in FIG. 7, the decoration part 140 may be formed in various shapes such as a circle shape and a flower shape.

In addition, the decoration and the fastening member is formed of a stainless steel material.

Therefore, the decoration part 140 not only forms a pattern but is glossy and does not rust, thereby adding an aesthetic effect to the exposed concrete.

Hereinafter, look at the installation and operation of the present invention made of the above-described configuration.

As shown in FIG. 4, there are the outer formwork 300 boring the first bolt hole 310 at regular intervals and the inner formwork 400 boring the second bolt hole 410 at regular intervals.

A part of the outer fastening part 600 is inserted into and coupled to the first bolt hole 310 to the outside of the outer mold 300.

The fastening member 100 is disposed inside the outer mold 300, and a part of the outer fastening part 600 inserted into the first bolt hole 310 is formed in the fastening member 100. 2 is inserted into the insertion groove 132 is fastened.

As a result, the fastening member 100 and the outer fastening part 600 are fixed to the outer mold 300.

One end of the support shaft 200 is inserted into and fastened to the first insertion groove 131 formed in the fastening member 100, and the other end of the support shaft 200 is a first insertion of the other fastening member 100. It is inserted into the groove 131 and fastened.

At this time, the other fastening member 100 is in contact with the inner surface of the inner mold (400).

A portion of the inner fastening part 700 is inserted into the second bolt hole 410 formed in the inner mold 400 at an outer side of the inner mold 400, and the inner fastening part 700 is in the inner side. It is inserted into the second insertion groove 132 formed in the fastening member 100 in contact with the inner surface of the die 400 is fastened.

The concrete 800 is filled in the inner space formed by the inner mold 400 and the outer mold 300.

At this time, the elastic member 121 inserted into the outer side of the fastening member 100 is subjected to a force by the pressure of the concrete 100, thereby the elastic member 121 is the concrete 800 and the The elastic restoring force acts in the direction of the fastening member 100.

Therefore, the gap between the elastic member 100 and the concrete 800 and the fastening member 100 is virtually eliminated, so that the waterproof effect is excellent.

After the construction in the above state to cure the concrete 800, the inner formwork 400 and the outer formwork 300 and the inner fastening portion 700 and the outer fastening portion 600 as shown in FIG. Demould to be in a state.

As shown in FIG. 5, the fastening member 100 coupled to both sides of the support shaft 200 and the support shaft 200 is embedded in the concrete 800.

At this time, the fastening member 100 is not separated, and the decoration part 140 formed on the fastening member 100 is exposed to the outer surface of the concrete 800 as it is.

Since the decoration part 140 is formed to have a pattern made of stainless steel, it forms a pattern on the outer surface of the concrete 800, and the aesthetic effect is excellent by the gloss of the decoration part 140. .

And since the fastening member 100 is not separated, there is an advantage that the working process is easy and the construction period is shortened.

In addition, the waterproof groove 120 is formed on the outer surface of the fastening member 100, the elastic member 121 is inserted into the waterproof groove 120, the elastic restoring force for the pressure of the concrete (800) acts Therefore, a force is generated in the direction of the concrete 800 and the fastening member 100, the gap between the fastening member 100 and the concrete 800 is narrowed, so that the waterproofing effect is excellent, the fastening member 100 is removed. It is convenient because it does not need mortar treatment with waterproof effect.

The waterproof member 120 and the elastic member 121 inserted into the waterproof groove 120 form a rectangular tooth shape, and the water introduced between the fastening member 100 and the concrete 800 follows a sawtooth shape. As it is hard to climb, the waterproof effect is improved.

Water introduced through the second insertion groove 132 is blocked by the partition wall 133 formed inside the second insertion groove 132, thereby providing a waterproof effect.

Therefore, the fastening member 100 of the present embodiment is excellent in the waterproof effect, the work process is simple and the construction period is shortened.

When the exposed concrete is constructed as described above, as shown in FIG. 6, the concrete 100 has a pattern formed by the decoration part 140.

As illustrated in FIG. 7, the pattern formed by the decoration part 140 may be formed in various shapes such as the shapes of (a), (b), (c), and (d).

Second embodiment

8 is a perspective view of a set of exposed concrete fastening members according to a second embodiment of the present invention, Figure 9 is a cross-sectional view of FIG.

Compared to the first embodiment, the second embodiment is different from only that the support shaft 200 and the fastening member 100 are integrally formed, and the body portion 110 and the body portion constituting the remaining structure, that is, the fastening member 100. The waterproof groove 120 and the decorative portion 140 formed in the 110 is the same bar detailed description thereof will be omitted, hereinafter only in detail with respect to the matters associated with the support shaft 200 and the fastening member 100 integrally. Explain.

As shown in FIG. 8 or 9, the fastening member set for the exposed concrete of the present invention includes a fastening member 100 and a support shaft 200.

The support shaft 200 is formed in a rod shape.

The fastening member 100 is integrally coupled to both sides of the support shaft 200.

The fastening member 100 is composed of a body portion 110 and the decoration portion 140 and the elastic member 120 and the like.

That is, as shown in Figure 9, the body portion 110 is integrally coupled to both sides of the support shaft 200.

The body portion 110 is formed with a second insertion groove 132 having a screw line on the inner side of the opposite side coupled to the support shaft 200.

Therefore, since the fastening member 100 and the support shaft 200 are integrally formed during the construction of exposed concrete, the work is not necessary because the fastening member 100 is inserted into and fixed to the support shaft 200. It is convenient.

The fastening member for exposed concrete of the present invention is not limited to the above-described embodiment, and may be variously modified and implemented within the allowable range of the technical idea of the present invention.

1 is a perspective view of a fastening member for exposed concrete according to a first embodiment of the present invention;

2 is a cross-sectional view of FIG.

Figure 3 is a perspective view of the fastening member and the support shaft coupled state,

4 is a cross-sectional view at the time of manufacturing exposed concrete,

5 is a cross-sectional view of a state in which the formwork of FIG. 4 is removed;

6 is a perspective view of FIG.

7 is a plan view of various decorative parts,

8 is a perspective view of a set of exposed concrete fastening members according to a second embodiment of the present invention;

9 is a cross-sectional view of FIG. 8;

<Description of the symbols for the main parts of the drawings>

100: fastening member, 110: body portion, 120: waterproof groove, 121: elastic member, 130: insertion portion, 131: first insertion groove, 132: second insertion groove, 133: partition wall, 140: decorative portion, 200: Support shaft, 300: outer die, 310: first bolt hole, 400: inner die, 410: second bolt hole, 600: outer fastening part, 700: inner fastening part, 800: concrete.

Claims (9)

In the fastening member for exposed concrete that is inserted into the support shaft formed with screw ends on both sides, The fastening member, It is made of a body portion having an insertion portion is inserted into the support shaft therein, Fastening member for exposed concrete, characterized in that the waterproof groove is formed in the outer peripheral surface of the body portion in the circumferential direction. The method of claim 1, The fastening member, Fastening member for exposed concrete, characterized in that the waterproof groove further comprises an elastic member inserted to protrude outward of the body portion. The method according to claim 1 or 2, The fastening member, Fastening member for exposed concrete, characterized in that it further comprises a decorative portion formed on the opposite side of the body portion is fastened to the support shaft. The method of claim 1, The insertion unit, A first insertion groove in which a screw line is formed on an inner surface thereof and into which the support shaft is inserted; A second insertion groove formed on an opposite side of the first insertion groove and having a screw line formed on an inner side thereof; And a partition wall formed between the first insertion groove and the second insertion groove to divide the insertion groove into the first insertion groove and the second insertion groove. The method according to claim 1 or 2, The waterproof groove is a fastening member for exposed concrete, characterized in that the closed curve along the outer peripheral surface of the body portion. The method of claim 1, Fastening member for exposed concrete, characterized in that the body portion made of stainless steel. A rod-shaped support shaft; Consists of a fastening member coupled to both sides of the support shaft, The support shaft and the fastening member is made integrally, The fastening member, A fastening member set for exposed concrete, characterized in that the body portion is formed with a second insertion groove having a screw thread on the inner side of the opposite side coupled to the support shaft, the outer peripheral surface of the body portion is formed with a waterproof groove in the circumferential direction. The method of claim 7, wherein The fastening member, The fastening member set for exposed concrete, characterized in that the waterproof groove further comprises an elastic member inserted to protrude outward of the fastening member. The method according to claim 7 or 8, The fastening member, The fastening member set for exposed concrete, characterized in that it further comprises a decorative portion formed on the opposite side of the fastening member is fastened to have a variety of shapes.

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