KR102149173B1 - Set anchor - Google Patents

Abstract

The present invention discloses an improved set anchor to enable construction for fixing a fixture without considering the length adjustment of the thickness of the fixture, wherein the set anchor is inserted into a hole in the floor or wall, and the female screw on the upper part where the female screw is formed A pipe having an inner diameter smaller than that of the connecting portion and the female threaded portion, the supporting portion having a portion, a supporting portion of a lower portion divided into a plurality, and a connecting portion integrally connecting the female screw portion and the supporting portion; A ball having a lower inclined surface, the inclined surface being disposed to contact the inner surface of the support part, and pushing the support part while moving downward by a blow to make the outer surface of the support part in close contact with the inner wall of the hole; And a bolt having a head and a male screw portion, wherein the male screw passes through the fixture and is screwed with the female screw portion to fix the fixture to the floor or the wall.

Description

SET ANCHOR

The present invention relates to a set anchor, and more particularly, to an improved set anchor to enable construction for fixing a fixture without considering length control for the thickness of the fixture.

Set anchors are often used in construction to fix fixtures to concrete or reinforced concrete.

In general, the set anchor comprises bolts, pipes, plain washers, spring washers and nuts.

The set anchor described above is constructed by drilling a hole in the wall or floor, inserting a pipe with bolts into the hole, and hitting the pipe with a punch, and the end of the pipe is opened in the hole by the blow, and it is seismic resistance (bearing force). Has.

At this time, the bolt is constructed to be exposed to a certain length from the wall or floor in consideration of the thickness of the fixture.

Thereafter, the fixture is disposed so that the bolt exposed through its through hole penetrates, and the nut is coupled to the end of the bolt, thereby completing the construction of the set anchor.

In general, in a construction site, the set anchor is generally used in multiple locations to install a single fixture. Therefore, the set anchor must be constructed so that the length of the bolt exposed to the wall or floor is constant.

However, it is difficult to construct a conventional set anchor so that the exposed length of the bolt is uniform in consideration of the thickness of the fixture. Therefore, the conventional set anchor is poor in workability and has limitations in elaborate construction.

In addition, in the conventional set anchor, as the length of the exposed bolt is non-uniform, the shape remaining on the fixture is changed for each position after fixing the fixture. Therefore, the aesthetic feeling exposed after construction is inferior.

In addition, there is a difficulty in reconstruction of the conventional set anchor when the hole is widened due to vibration or the like and the fastening state is relaxed.

And, the conventional set anchor has a structure in which the pipe is opened and coupled to the lower part of the hole. Therefore, as described above, the conventional set anchor has a limitation in providing sufficient seismic resistance to the fixture by providing seismic resistance dependent only on the opening of the pipe.

An object of the present invention is to provide a set anchor that does not require length adjustment in consideration of the thickness of a fixture, and that can have a strong earthquake resistance between a hole and a pipe.

Another object of the present invention is to provide a set anchor that can have an improved aesthetics by exposing only the head of the bolt after construction and can be easily rebuilt.

Another object of the present invention is to provide a set anchor that is resistant to vibration by matching the inlet of the pipe with the hole.

Another object of the present invention is to provide a set anchor capable of effectively maintaining earthquake resistance by using a ball tooth to maintain earthquake resistance and having a coupling structure of protrusions that prevents the fixed ball from falling out in the reverse direction.

Another object of the present invention is to provide a set anchor that does not require maintenance procedures such as cutting for organizing residues even after demolition.

The set anchor of the present invention is inserted into a hole in a floor or a wall, and has an upper female screw part formed with a female screw, a support part at the lower part divided into a plurality, and a connection part integrally connecting the female screw part and the support part, and the support A pipe having an inner diameter narrower than that of the connecting portion and the female screw portion; A ball having a lower inclined surface, the inclined surface being disposed to contact the inner surface of the support part, and pushing the support part while moving downward by a blow to make the outer surface of the support part in close contact with the inner wall of the hole; And a bolt having a head and a male screw portion, wherein the male screw passes through the fixture and is screwed with the female screw portion to fix the fixture to the floor or the wall.

The present invention can provide a strong earthquake resistance between the hole and the pipe by fixing using a ball, and there is an advantage that construction is unnecessary in consideration of the thickness of the fixture by screwing the bolt and the pipe.

In addition, the present invention can have an improved aesthetics by exposing only the head of the bolt after construction, and the bolt can be constructed to have a uniform height, so there is an advantage that elaborate construction is possible.

In addition, the present invention is not only resistant to vibration as the inlet of the pipe is combined with the hole, but also has the advantage of being easy to dismantle because only the bolts need to be removed when the fixture is removed, and there is no need to dismantle the pipe even after the fixture is removed. It has the advantage of not needing to be organized.

In addition, in the present invention, the ball tooth is coupled to the inner surface of the support portion of the pipe in a reverse connection structure, so that the ball tooth is prevented from falling out and the vibration resistance can be effectively maintained.In addition, when the fastening state is relaxed due to vibration, etc. There is an advantage.

1 is a cross-sectional view illustrating an embodiment of a set anchor of the present invention.
2 is a partial perspective view illustrating a structure of a support.
Figure 3 is an exemplary view for explaining the coupling between the ball and the support.
Figure 4 is an exemplary view after removing the fixture, bolts, flat washers and spring washers in the embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Terms used in the present specification and claims are not limited to a conventional or dictionary meaning and are not interpreted, but should be interpreted as meanings and concepts consistent with the technical matters of the present invention.

Since the embodiments described in the present specification and the configurations shown in the drawings are preferred embodiments of the present invention, and do not represent all the technical spirit of the present invention, various equivalents and modifications that can replace them at the time of the present application are There may be.

An embodiment of the set anchor of the present invention may be illustrated as shown in FIG. 1, and the set anchor includes a bolt 10, a pipe 30 and a ball 50.

In the embodiment of the set anchor described above, a circular pipe 30 is inserted into the circular hole 110 of the floor or wall 100, and the ball 50 is inserted into the pipe 30 by hitting and fixing it to have earthquake resistance. Then, it is configured to couple the fixture 200 to the upper portion of the pipe 30 using the bolt 10.

In the above-described embodiment, a spring washer 20 for preventing the bolt 10 from being loosened due to vibration, and a flat washer 22 for protecting the fixture 200 are used as the head 12 of the bolt 10. ) And the fixture 200 may be further included between.

For the above-described configuration, first, the circular hole 110 must be constructed on the floor or wall 100 so as to have a diameter corresponding to the outer diameter of the pipe 30 and a depth corresponding to the length of the pipe 30.

The pipe 30 is inserted into the hole 110 constructed as above.

The pipe 30 has a predetermined length and is formed in a circular shape having a diameter corresponding to the hole 110, and the upper female screw portion 32 having a female screw formed on the inner surface, the support portion 36 and the female screw portion ( 32) and a connection part 34 integrally connecting the support part 34 to each other.

In addition, the pipe 30 has a circular through-hole in the longitudinal direction passing through the female threaded portion 32, the connecting portion 34, and the support portion 36.

The pipe 30 corresponds to the inlet of the hole 110 at the top and has an inlet rim 38 having a larger diameter than the outer surface. The inlet rim 38 may be configured to have an inclined surface from the top to the outer surface of the bottom so that the top of the pipe 30 forms a dish head shape.

The pipe 30 is coupled to the inlet of the hole 110 by the inlet rim 38 described above. More specifically, the pipe 30 may be inserted into the hole 110 so that the upper surface of the inlet rim 38 and the floor or wall 100 have the same height by hitting.

In addition, the connection portion 34 has an outer diameter that is narrower than that of the female screw portion 32 and the support portion 36 as described above, and as a result, is connected to the female screw portion 32 and the support portion 36 to have a step difference. Therefore, a space spaced apart from the inner wall of the hole 110 is formed on the outer surface of the connection part 34.

Corresponding to the configuration of the connection part 34 described above, the female screw part 32 may be formed to a depth at which the female screw formed on the inner surface of the connection part 34 is formed, and the female screw requires insertion of the ball 50 to be described later. For this purpose, it is preferable to be formed to have a height equal to or lower than the inner diameter of the connection part 34.

And, the support portion 36 is configured to have a narrower inner diameter than the female screw portion 32 and the connection portion 34. In addition, as shown in FIG. 2, the support part 36 has a step difference from the connection part 34, and may have a shape divided into a plurality (for example, four) in the separation gap 40 formed in the length direction.

The support part 36 has a protrusion 42 formed on each outer surface divided in the longitudinal direction, and the protrusion 42 may have a'wang' shape in which a plurality of horizontal protrusions and one vertical protrusion intersect. The protrusion 42 may be used for reinforcing earthquake resistance by contacting the inner wall of the hole 110.

Meanwhile, the gongi 50 has a narrow inclined surface at the bottom, and is disposed so that the inclined surface contacts the inner surface of the support part 36 after being inserted through the through hole of the female screw part 32 and the connection part 34.

The structures of the ball 50 and the support 36 will be described in detail with reference to FIG. 3.

The ball 50 has an upper striking head 52 and a lower insertion part 54.

The upper hitting head 52 is hit for movement and fixation by a punch (not shown) introduced through the through hole of the pipe 30, that is, the female threaded part 32 and the connection part 34, It can be configured to have a top surface for.

The insertion portion 54 may have a diameter smaller than the through hole of the female screw portion 32 and the connection portion 34, and may have an inverted trapezoidal column shape having an inclined surface whose outer diameter decreases toward the bottom.

The inclined surface 56 of the insertion part 54 is formed in a horizontal strip shape and has first protrusions continuously formed along the length direction of the inclined surface 56.

Corresponding to the structure of the inclined surface 56 of the gongi 50, the support 36 has an inclined surface 38 having an inner diameter gradually narrower as it proceeds downward, and the inclined surface 38 increases the inner surface of the support 36 It is formed in a horizontal strip shape along the way and has second protrusions continuously formed along the length direction of the inclined surface 38.

The first protrusions of the inclined surface 56 of the ball 50 are combined with the second protrusions of the inclined surface 38 of the support part 36.

The first protrusions and the second protrusions are coupled to each other, and may have a reverse connection structure for preventing the ball from falling in the opposite direction of the movement direction by the hit of the ball 50. Here, the reverse structure refers to a structure in which the first protrusions and the second protrusions have a gentle inclination angle in the moving direction by the strike of the ball 50 and a sharp inclination angle with respect to the direction in which the ball 50 is removed. That is, by the reverse connection structure, the ball 50 is guaranteed to move by a blow, and it can be blocked from falling out by vibration or the like.

By the above-described structure, the ball 50 moves between the inclined surfaces 38 of the support part 36 by hitting, and pushes the support part 36 split into a plurality to the side, so that the outer surface of the support part 36 is removed from the hole 110. Make it close to the inner wall. The ball 50 may be prevented from being removed from the fixed position by the reverse connection structure of the first and second protrusions described above.

That is, in the set anchor according to the present invention, the pipe 30 is first installed in the hole 110 of the floor or wall 100, and the fixture 200 is placed on the constructed pipe 30, and the flat washer 22 ) And the spring washer 20 to the through hole formed for bolt coupling of the fixture 200, and coupling the bolt 10 to the female threaded portion 32 of the pipe 30 can be constructed.

More specifically, the pipe 30 is a step of constructing a hole 110 in the floor or wall 100, inserting the pipe 30 into the hole 110, and hitting the top of the inserted pipe 30 Installing the pipe 30 so that the floor or the wall 100 and the upper surface of the inlet rim 38 of the pipe 30 have the same height, the inclined surface 38 of the support 36 and the inclined surface of the ball 50 ( 56) inserting the ball 50 into the pipe 30 so that it abuts, and hitting the ball 50 with a punch (not shown) through the through hole, so that the ball 50 is the inclined surface of the support 36 ( 38) It can be installed by sequentially performing the steps of fixing between.

As described above, in the set anchor according to the invention of the ball, the support part 36 is in close contact with the outer wall of the hole using a ball tooth, and the ball tooth is firmly fixed by the protrusions of the reverse connection structure. Therefore, a solid earthquake resistance in which the pipe can be fixed in the hole can be ensured.

And, in the present invention, the fixture is fixed using the combination of the above-described pipe and bolt. Therefore, there is no need to construct parts in consideration of the thickness of the fixture. That is, in the present invention, it is possible to easily implement construction for a fixture of various thickness by selecting a bolt of an appropriate length. In addition, since the bolt can be constructed to have a uniform height, elaborate construction for fixing the fixture is possible.

In addition, in the present invention, only the head of the bolt is exposed on the upper part of the fixture after construction. Therefore, the finishing can be advanced to have an aesthetic feeling.

In addition, the present invention is not only resistant to vibration, but also can be removed by separating only the bolt. Therefore, it is easy to dismantle, and there is an advantage in that the treatment of residues such as pipe dismantling is unnecessary after the fixture is removed. 4 illustrates a state after the fixture 200, the bolt 10, the flat washers 22, and the spring washers 22 are removed and dismantled.

In addition, the present invention has the advantage of supplementing the vibration resistance by using a ball when the fastening state is relaxed due to vibration or the like.

Claims (7)

It is inserted into the hole of the floor or the wall, and has a female screw portion on the upper portion of which the female screw is formed, a support portion divided into a plurality of lower portions, and a connection portion integrally connecting the female screw portion and the support portion, and the support portion is more than the connection portion and the female screw portion. Pipes with a narrow inner diameter;
A ball having a narrow lower inclined surface, the inclined surface being disposed to contact the inner surface of the support part, and pushing the support part while moving downward by a blow to make the outer surface of the support part in close contact with the inner wall of the hole; And
Includes; a bolt having a head and a male screw portion, the male screw penetrating the fixture and screwed with the female screw portion to fix the fixture to the floor or the wall, and
The connection portion set anchor, characterized in that having a narrower outer diameter than the female screw portion and the support portion. delete The method of claim 1,
A set anchor in which a protrusion for reinforcing earthquake resistance is formed on the outer surface of the support part by contacting the inner wall of the hole. The method of claim 1,
The pipe is a set anchor having an inlet rim having a larger diameter than an outer surface at an upper end corresponding to the inlet of the hole to be combined with the hole in the bottom or the wall. The method of claim 1,
Protrusions that can be coupled to each other are formed on the inclined surface of the gong and the inner surface of the support, and the gong is fixed between the inner walls of the support by coupling between the protrusions. The method of claim 5,
The inclined surface of the gong and the protrusions on the inner surface of the support part have a set anchor having a reverse connection structure for preventing the gong from falling out of the moving direction. The method of claim 1, wherein the ball is
Striking head at the top; And
And an insertion portion having the inclined surface having a narrow lower portion and having a first protrusion formed thereon,
The first protrusion of the inclined surface is coupled to the second protrusions formed on the inner surface of the support part, and a set anchor having a reverse connection structure for preventing the ball from falling out in a direction opposite to the moving direction.

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