KR100994846B1

KR100994846B1 - A set anchor using reinforcing bar

Info

Publication number: KR100994846B1
Application number: KR1020100028571A
Authority: KR
Inventors: 정기찬
Original assignee: 정기찬; 진우건설주식회사
Priority date: 2010-03-30
Filing date: 2010-03-30
Publication date: 2010-11-16

Abstract

In the present invention, by lowering the manufacturing cost of the set anchor, instead of the conventional anchor bolt constituting the set anchor by adopting the reinforcing bar easily obtained at the construction site as the anchor bolt, it is possible to lower the overall manufacturing cost in manufacturing the set anchor.

Description

Set anchor using rebar {A SET ANCHOR USING REINFORCING BAR}

The present invention relates to a set anchor, and relates to a set anchor using reinforcing bars scattered in the construction site.

After squeezing the frame shaped by pouring concrete such as columns, floors, walls, etc., the concrete is poured and solidified and the frame is removed. This is called formwork. These forms of form constitute a variety of frameworks depending on the purpose used.

After the concrete is poured into the mold, buoyancy or side pressure due to the concrete is generated and the formwork needs to be fixed. At this time, the set anchor may be used to fix the form by installing a plate on the top.

A plate is provided to cover the top of the formwork so that concrete does not flow to the outside. At this time, a set anchor may be used to fix the plate to the upper portion of the formwork.

In general, the set anchor is called a foundation bolt and is embedded in the foundation of the concrete to fix steel structures such as telephone poles, bridge railings, and soundproof walls. It is fixed to, and functions to couple the frame, such as a structure to the portion exposed to the top to fasten with a nut. That is, after the anchor mounting hole is formed in the plate covering the formwork, the anchor bolt is inserted into and fixed to the anchor mounting hole, thereby preventing the plate covering the formwork from being detached.

However, such an existing set anchor cannot be used repeatedly, and its configuration is complicated, resulting in high manufacturing costs. Therefore, there is a need for the development of a set anchor that is simple in construction, repeatable in use, and can reliably lower manufacturing costs.

Accordingly, it is an object of the present invention to provide a set anchor having a low manufacturing cost and repeatable use.

A set anchor according to one aspect of the present invention for achieving the above object is to form an anchor hole in the plate (plate) installed on the concrete floor or wall, the set using the reinforcing bar inserted into the anchor installation hole as an anchor bolt An anchor (The Set Anchor), a first coupler through which the reinforcing bar, the engaging jaw is formed on the inner circumferential surface, and the first coupler is inserted into the screw coupled to the inside, pressurizing the plate in the process of loosening the screw coupling 2 couplers, and are in close contact with the nodal projection of the reinforcing bar is inserted into the interior of the first coupler, and by the locking step, in the opposite direction of the direction in which the second coupler presses the plate in the process of loosening the screw coupling It includes a locking member for preventing the movement of the first coupler.

The first coupler of the present invention includes an outer circumferential surface formed with a thread for screwing the second coupler, and the second coupler includes an inner circumferential surface formed with a screw groove for screwing the outer circumferential surface of the first coupler. It is done.

Further, in the present invention, the second coupler is in the form of a nut.

In addition, in the present invention, the locking member is characterized in that the node groove is formed to receive and combine the node projections of the reinforcement, the first node groove is formed to receive a portion of the node projections, the outer surface of the reinforcement The first piece is in close contact with the second piece, and the second node groove for receiving the remaining portion of the nodal projection is formed, characterized in that it comprises a second piece in close contact with the outer surface of the reinforcing bar.

Further, in the present invention, one end of each of the first and the second knitted body, characterized in that the semi-groove is formed in close contact with the joint projection accommodated in the first and second node groove and the adjacent node projection.

In addition, in the present invention, when the reinforcing bar includes an outer surface formed by staggering the semi-circular band-shaped projections, the first knitted body is accommodated in the first node groove, the semi-circular strip-shaped projections, the first The half groove of the body is in close contact with the nodal protrusions adjacent to the nodal protrusions accommodated in the first nodal grooves, and is partially attached to the outer surface of the reinforcing bar, and the second body is the rebar in the form in which the first body is inverted. It is in close contact with the outer surface of the, the second node groove is accommodated in the second projections formed opposite to the node projections received in the first node groove of the first piece of groove, the half groove of the second piece is the second groove It is characterized in that it is partially in close contact with the node projection accommodated in the node groove and the adjacent node projection.

The interval between the first node groove and the one end of the first knitted body in which the half groove is formed is equal to the interval between the top of the node protrusion formed on the outer surface of the reinforcing bar and the top of the neighboring node protrusion. The interval between the first node groove and the other end of the first piece is one half of the interval between the first node groove and the one end of the second piece, and the first piece and the second piece are the same. It is characterized by the shape.

In addition, in the present invention, each of the first and second pieces is characterized in that made of a magnetic body.

In addition, in the present invention, the outer circumference of the cross section of the first coupler cut in the vertical direction in the longitudinal direction of the reinforcing bar is circular, the inner circumference is elliptical, in the process of loosening the screw coupling, the elliptical inner circumferential surface of the first wing coupler is The first coupler is not rotated by the locking member.

According to the present invention, by replacing the anchor bolt with a reinforcing bar that can be easily obtained at the construction site, it is possible to lower the overall manufacturing cost in manufacturing the set anchor.

1 is a perspective view showing an appearance configuration of a set anchor according to an embodiment of the present invention.
2 is an exploded perspective view showing the configuration of the set anchor shown in FIG.
3 is a longitudinal sectional view showing a state in which reinforcing bars are inserted into the set anchors shown in FIGS. 1 and 2.
FIG. 4 is an enlarged longitudinal sectional view of the coupling member illustrated in FIG. 3 in close contact with an outer surface of the rebar.
5 is a view showing another embodiment of the locking member shown in FIGS.
6 is a cross-sectional view showing only the locking member shown in FIG.
FIG. 7 is a cross-sectional view according to another embodiment of the first coupler shown in FIGS. 2 and 3, which is viewed in a vertical direction in the longitudinal direction of the rebar.

In the present invention, a set anchor (THE SET ANCHOR) that can lower the manufacturing cost is proposed. To this end, by replacing the anchor bolt constituting the set anchor with reinforcing bars scattered in the construction site, it is possible to reduce the manufacturing cost required to manufacture the set anchor.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments disclosed herein are being provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. In the drawings, the thicknesses of layers and regions are exaggerated for clarity. Like numbers refer to like elements throughout.

1 is a perspective view showing the external configuration of the set anchor according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing the configuration of the set anchor shown in FIG.

1 and 2, the set anchor 100 according to an embodiment of the present invention fixes the plate 10 covering the formwork 20 to formwork so that concrete does not flow out from the formwork 20. It will be described as a set anchor to let only. However, the present invention is not limited thereto, and may be used for various purposes of attaching a specific structure to a concrete floor or a wall, and for use as a lock bolt in a civil engineering site.

The set anchor 100 according to the embodiment of the present invention includes a reinforcing bar 110, a locking member 130, a first coupler 150, and a second coupler 170.

The reinforcement 110 is configured to perform the role of the anchor bolt constituting the conventional set anchor, through the mounting hole (H) formed in the plate 10 covering the formwork 20 concrete in the formwork 20 It is embedded in the foundation and fixed.

The locking member 130 is composed of a pair of pieces that are coupled to the outer surface of the reinforcement 110, and is inserted into the first coupler 150 together with the reinforcement 110. Here, the pair of pieces constituting the locking member 130 is formed with a node groove 134 for receiving the node projection 112 of the reinforcing bar 110, the node groove 134 is the node projection ( By accommodating 112, the engaging member 130 composed of a pair of knitting bodies may be closely coupled to the outer surface of the reinforcing bar 110.

The first coupler 150 is processed into a cylindrical shape, the reinforcing bar 110 through which the locking member 130 is tightly coupled, and a thread is formed on an outer circumferential surface of the first coupler 150. It is inserted into the coupler 170 and screwed to the inner circumferential surface of the second coupler 170. At this time, the locking jaw 152 is formed on the inner circumferential surface of the first coupler 150, so that the locking member 130 in the process of loosening the screw coupling between the first coupler 150 and the second coupler 170 The locking jaw 152 is caught.

The second coupler 170 presses the plate 10 while the screw coupling with the first coupler 150 is released. The second coupler 170 may be processed in the form of a nut as shown in FIGS. 1 and 2, and a screw groove is formed on an inner circumferential surface thereof so that the screw couple is formed on the outer circumferential surface of the first coupler 150. It is fastened and presses the plate 10 in the process of loosening the screw coupling, it is possible to firmly fix the plate 10 on the formwork 20.

3 is a longitudinal sectional view showing a state in which reinforcing bars are inserted into the set anchors shown in FIGS. 1 and 2, and FIG. 4 is an enlarged view in which the coupling member shown in FIG. 3 is closely coupled to the outer surface of the rebar. It is a longitudinal cross section showing.

3 and 4, first, the first and second knitting bodies constituting the locking member 130 are coupled to the same position of the outer surface of the rebar. As shown in FIGS. 2 and 4, each knitting body has a node groove 134 for receiving the node protrusion 112 of the reinforcing bar 110, and the node protrusion of the reinforcing bar 110 is formed in the node groove (). As 112 is accommodated, the first and second knitting bodies may be tightly coupled to the outer surface of the rebar 110.

In the state where the first and second knitted bodies 130 are coupled to the outer surface of the rebar, the rebar 110 is inserted into the first coupler 150. In the process of inserting the reinforcing bar 110, the first and second pieces 130A and 130B tightly coupled to the outer surface of the reinforcing bar 110 to the locking step 152 formed on the inner circumferential surface of the first coupler 150. It is seated. As shown in FIG. 4, the first and second knitting bodies 130A and 130B have first and second node grooves 134A and 134B on a lower surface thereof, and the first node groove 136A has the node protrusion. A portion of the 112 is received, and the second node groove 136B is tightly coupled to the outer surface of the reinforcement 110 by receiving the remaining portion of the node protrusion 112 accommodated in the first node groove. In addition, the first and second knitting bodies are machined into upper inclined surfaces 134A and 134B of which one end of the upper surface is inclined to be seated on the locking step 152 formed on the inner circumferential surface of the first coupler 150. In this case, the locking jaw 152 is also processed in an inclined form and is in surface contact with the first and second knitting bodies 130A, 130B to be more stably seated.

In a state where the first and second knitting bodies 130 are seated on the locking jaw 152, the screw threads formed on the outer circumferential surface of the first coupler 150 and the screw grooves formed on the inner circumferential surface of the second coupler 170 are screwed. To combine.

When the screw coupling of the first and second couplers 150 and 170 is completed, the rebar 110 is inserted into the anchor installation hole formed in the plate 10 in this state, and the second coupler 170 is It will support the peripheral part of the anchor installation.

Thereafter, when the second coupler 170 is rotated in the direction in which the screw is released, the screw couple between the first coupler 150 and the second coupler 170 is loosened, and the first coupler 150 is upward, that is, the rebar ( While moving in the direction opposite to the direction in which the 110 is inserted, it can no longer be moved upward by the locking members 130 (130A, 130B) fixed to the rebar. At this time, if the second coupler 170 is further rotated in the direction of loosening the screw, the locking jaw 152 of the first coupler 150 will further press the locking members (130A, 130B), as a result of this pressing When the second coupler 170 receives the force in the opposite direction to the pressure direction, the plate is pressed, thereby stably fixing the plate 10 on the formwork 20 (shown in FIG. 1) more stably. Will be.

On the other hand, in the embodiment of Figures 2 to 4, the bar protrusion 112 is described as an example of the reinforcing bar having a circular band-shaped bar projection on the outer circumferential surface, in the case of the reinforcing bar is formed with the semi-circular strip-shaped bar protrusions staggered, It is necessary to differ from the embodiment of Figs. A detailed description thereof will be described in detail with reference to FIGS. 5 and 6.

5 is a view showing another embodiment of the locking member shown in Figures 2 to 4, Figure 6 is a cross-sectional view showing only the locking member shown in FIG.

Referring to FIGS. 5 and 6, in the case of the reinforcing bar 110 having the outer surface of which the semi-circular band-shaped protrusions are staggered, the engaging members 180 (180A, 180B) are formed of the first and second bodies 180A and 180B. 180B), the first piece 180A is formed with a first nod groove 180A for receiving a portion of the semi-circular band-shaped nodule 114, and is partially coupled to the outer surface of the reinforcement 110. The second piece 180B is formed with a second piece of groove 186B accommodating the opposite piece of groove formed in a manner that is alternately formed with the semi-circular strip-shaped nodule accommodated in the first piece of groove 186A of the first piece 180A. The first piece 180A is inverted to be in close contact with the outer surface of the reinforcing bar 110.

In addition, at one end of each of the first and second knitted bodies 180A and 180B according to another exemplary embodiment of the present invention, a partial protrusion and a neighboring nodal protrusion are accommodated in the first and second nodal grooves 186A and 186A. The first and second half grooves 184A and 184B to be tightly coupled to each other are formed, and thus the first and second half grooves 184A and 184B may be tightly coupled to the outer surface of the reinforcing bar 114 more stably. At this time, the interval between the first node groove 180A and the first half groove 184A where one end of the first piece 180A is formed is equal to the top of the node protrusion formed on the outer surface of the reinforcing bar 110. The process is performed in the same manner as the interval between neighboring nodal protrusions, and the interval between the first nodal groove 186A and the other end of the first knitted body 180A is the first nodal groove 186A and the second end. It is processed to one half of the space | interval to one end of the knitting body 180B, and the said 2nd knitting body 180B is processed to the same shape as the said 1st knitting body 180A. The first and second knitted bodies 180A and 180B thus processed may be tightly coupled to any reinforcing bars having outer surfaces as shown in FIGS. 2 and 5, except that in the case of reinforcing bars having a semi-circular band-shaped projection, After the first piece 180A is tightly coupled, the remaining second pieces 180B may be joined in an inverted state.

In the embodiment of FIGS. 2 to 6, when the engaging members 130 and 180 are processed using a magnetic material, the locking members 130 and 180 may be easily adhered to the outer surface of the rebar.

7 is a view showing another embodiment of the locking member and the first coupler shown in FIG.

Referring to FIGS. 7A and 7B, in the embodiment of FIG. 3, a locking jaw 152 is formed on an inner side surface of the first coupler 150, and one end thereof is caught by the locking jaw 152. Although the engaging member 130A having the inclined inclined surface is shown, the first coupler 150A in the other embodiment of FIG. 7 has a locking inclined surface 150A on its inner side instead of forming the engaging jaw 152 on the inner side. -1) and the locking member 130C in the other embodiment of FIG. 7 has a whole upper surface such that the locking member 130C is in surface contact with the locking inclined surface 150A-1, unlike the structure of FIG. It is processed to have an inclined upper inclined surface 130C-1. In this way, the upper surface 130C-1 of the locking member 130C is caught by the locking inclined surface 150A-1 of the first coupler 150A.

8 is a cross-sectional view according to another exemplary embodiment of the first coupler illustrated in FIGS. 2 and 3, which is viewed in a vertical direction in the longitudinal direction of the rebar.

Referring to FIG. 8, in the process of loosening the screw coupling between the first coupler 150 and the second coupler 170 to fix the plate to the upper part of the formwork, the user may select one of the first and second couplers 150 and 160. It may be inconvenient to loosen the screw while rotating one while holding the other. In this case, if the inner shape of the first coupler 150 is processed into a shape as shown in FIG. 7, this inconvenience can be easily solved. That is, the outer periphery S1 of the cross section of the first coupler 150 cut in the vertical direction of the rebar in the longitudinal direction is processed into a circular shape, and the inner periphery S2 is processed into an oval shape. In this case, even if only the second coupler 170 is rotated to loosen the screw coupling, since the locking member 130 is fixed in close contact with the outer surface of the reinforcing bar 110, the elliptical shape of the first coupler 150 is fixed. The first coupler 150 is fixed to the inner circumferential surface and the vertical protrusion 114 (see FIG. 4) by the locking member 130 without being rotated. Therefore, in a state where the user does not hold the first coupler 150 by hand, only the second coupler 170 can be rotated to loosen the screw, thereby holding the first coupler 150 by using the user's hand or a tool. It is possible to eliminate the inconvenience of having to rotate the second coupler 170 in the state.

As described above, the present invention reduces the overall manufacturing cost in manufacturing the set anchor by employing an anchor bolt easily obtained at the construction site in place of the conventional anchor bolt constituting the set anchor in order to lower the manufacturing cost. Can be.

Claims

In The Set Anchor, which forms an anchor hole in a plate provided on a concrete floor or wall, and uses reinforcing bars inserted into the anchor hole as anchor bolts,
A first coupler through which the rebar penetrates and a locking jaw formed on an inner circumferential surface thereof;
A second coupler inserted into the first coupler to screw the second coupler and pressurizing the plate in a process of loosening the screw; And
The first coupler is in close contact with the nodular protrusion of the reinforcing bar and inserted into the first coupler, and the second coupler pushes the plate in the opposite direction in which the second coupler presses the plate in the process of releasing the screw by hanging the locking jaw. Jamming member to prevent movement of
Set anchor comprising a.

The set anchor according to claim 1, wherein the first coupler includes a threaded outer circumferential surface for screwing with the second coupler.

The set anchor according to claim 2, wherein the second coupler includes an inner circumferential surface formed with a screw groove for screwing with an outer circumferential surface of the first coupler.

4. The set anchor according to claim 3, wherein the second coupler is in the form of a nut.

The set anchor according to claim 1, wherein the locking member has a node groove formed to receive and engage the node protrusion of the reinforcing bar.

The method of claim 5, wherein the locking member,
A first piece of body having a first node groove for receiving a portion of the node protrusion and tightly coupled to an outer surface of the rebar; And
A second anchor groove is formed to receive the remaining portion of the nodal projection, the set anchor, characterized in that it comprises a second knitted body in close contact with the outer surface of the reinforcing bar.

According to claim 6, At one end of each of the first and second pieces,
A set anchor is formed in which a half groove that is in close contact with the node projection and the adjacent node projection accommodated in the first and second node grooves.

The method of claim 6, wherein the reinforcing bar comprises a semicircular band-shaped nodal protrusions alternately formed,
The first knitting body accommodates the semi-circular strip-shaped nodal protrusion in the first nodal groove, and the half groove of the first knitting body is in close contact with the nodal protrusion adjacent to the nodal protrusion accommodated in the first nodal groove, so that Partially tightly coupled to the outer surface,
The second body is in close contact with the outer surface of the reinforcing bar in the form of the first body is inverted, the node projections alternately formed on the opposite side of the node projection accommodated in the first node groove of the first piece in the second node groove And a half groove of the second knitting body is partially in close contact with the nodal protrusions adjacent to the nodal protrusions received in the second nodal grooves.

9. The method of claim 8, wherein the interval between the first node groove and the one end portion of the first piece formed with the half groove is the interval between the top of the node projection formed on the outer surface of the reinforcement and the top of the adjacent node projection The same, the interval between the first node groove and the other end of the first piece is one half of the distance between the first node groove and the one end of the second piece,
The set anchor according to claim 1, wherein the first and second knit bodies have the same shape.

The set anchor according to claim 6, wherein each of the first and second pieces is made of a magnetic material.

According to claim 1, wherein the outer circumference of the cross section of the first coupler cut in the vertical direction of the reinforcing bar in the longitudinal direction, the inner circumference is elliptical,
In the process of loosening the screw coupling, the set anchor is that the inner circumferential surface of the elliptical first coupler is caught by the locking member so that the first coupler does not rotate.