KR102062152B1 - One-touch Coupler for Connecting Reinforcing Rods - Google Patents

Abstract

The present invention relates to a one-touch coupler for connecting reinforcing bars, which is used for connecting reinforcing bars used in a construction site to each other, and more specifically, to a one-touch coupler for connecting reinforcing bars, which has excellent assembly performance and bonding strength through structural improvement to prevent assembly deformation in which an initial assembly state of a plurality of pieces is deformed. Therefore, insertion of the reinforcing bar is easy to improve operation efficiency, and the bonding strength with respect to the reinforcing bar is excellent. According to the present invention, the assembly property and the bonding strength are specifically excellent through the structural improvement of a shape maintaining guide supporting the plurality of pieces so as to prevent the assembly deformation in which the initial assembly state of the plurality of pieces is deformed. Therefore, the insertion of the reinforcing bar is easy to improve operation efficiency, and the bonding strength with respect to the reinforcing bar is excellent.

Description

One-touch Coupler for Connecting Reinforcing Rods}

The present invention relates to a one-touch coupler for reinforcing bars used to join reinforcing bars used in construction sites, and more specifically, the self-assembly and cohesion is particularly excellent through structural improvements, so that the initial assembly state of a plurality of pieces is improved. By preventing the deformation of the assembly to be deformed is easy to insert the reinforcing bar to improve the work efficiency, as well as the one-touch coupler for reinforcing bar was made to be excellent fastening force to the rebar.

In order to connect reinforcing bars for use in concrete structures at various construction sites, in the past, reinforcing bars were bundled with wires and fixed in a double overlapping state. The work is cumbersome and the center of the reinforcing bar is not vertical, not only crooked, but also because the strength of the wire is weak, there is a problem that the connection state is released easily.

In order to solve this problem, the reinforcing bars were connected using one-touch couplers instead of wires. The one-touch coupler has been widely proposed and used in various forms, among them, one-touch rebar coupler of Korean Patent Registration No. 10-1683146 (2016.12.06. Notification) has been proposed.

Referring to this publication, the above-mentioned disadvantages are solved by maintaining a state in which a plurality of pieces of the body are separated from each other, and then, when the reinforcing bar is inserted, the pieces are automatically closed and the bars are firmly fixed.

On the other hand, the plurality of pieces must be maintained in the open state before the rebar is fastened, the coupler is often thrown in the transport process or on-site. Then, a plurality of pieces are often deformed, such as being collapsed or distorted in the first assembled state, and in this case, rebar insertion is not easy, and as workers repeatedly disassemble and reassemble the coupler in the field, Problems that lead to a decrease in work efficiency have been created.

The present invention has been made to solve the above problems, through the structural improvement of the self-assembly and the binding force is particularly excellent to prevent the assembly deformation in which the initial assembly state of a plurality of pieces of deformation is easy to insert the reinforcing bar reinforcement work efficiency In addition, the present invention provides a one-touch coupler for reinforcing bar joints, which is designed to enhance the fastening force of the reinforcing bars as well as to improve the pressure.

The present invention in order to achieve the above object, the socket is formed on the outer periphery; A coupler body which is screwed on the upper and lower sides of the socket, and has an inlet formed at one end thereof with an inlet into which reinforcing bars are inserted, and an inclined surface having an inclined surface gradually smaller toward the inlet from the opposite side of the inlet; A plurality of knitted bodies each having an outer side surface connected to the inclined surface in the hollow portion of the coupler body and having a close contact protrusion for crimping reinforcing steel bars on the inner side surface; The body is inserted into the interior through one end of the plurality of pieces and formed to have an inclined outward from the upper edge portion of the body to directly support the lower surface of the contact protrusions of the pieces to prevent the flow of the pieces assembled Shape maintenance guide consisting of a plurality of support pieces to maintain; And an elastic member installed inside the hollow portion of the coupler body to press the knitted body toward the inlet of the coupler body, wherein the shape retaining guide has a cylindrical shape and a seating groove is formed and inserted into the body. The end of the structure is configured to accommodate, and when the reinforcing bar is inserted through the inlet of the coupler body and the shape retaining guide is pushed out of the knitted body by the restoring force of the elastic member along the inclined surface of the coupler body It is characterized in that it is configured to fasten the reinforcement while being moved toward the entrance.

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According to the present invention, through the structural improvement of the shape retaining guide for supporting a plurality of pieces, the self-assembly and the binding force is particularly excellent to prevent the assembly deformation in which the initial assembly state of the plurality of pieces is deformed to facilitate the insertion of reinforcing bars It not only improves the efficiency, but also has the effect of making the fastening force to the reinforcing bar excellent.

1 is a perspective view showing a one-touch coupler for reinforcing bars according to an embodiment of the present invention.
Figure 2 is an exploded perspective view showing a one-touch coupler for reinforcing bars according to an embodiment of the present invention.
"A" of Figure 3 is a longitudinal cross-sectional view showing the inside of the socket according to an embodiment of the present invention, "I" is a longitudinal cross-sectional view showing the interior of the coupler body, "C" is a longitudinal cross-sectional view showing the knitting body, "D" is a longitudinal sectional view showing the inside of the shape retaining guide.
Figure 4 is a longitudinal sectional view showing the assembled state of the one-touch coupler for reinforcing bar connections according to an embodiment of the present invention.
Figure 5 is a schematic longitudinal cross-sectional view showing a reinforcing bar insertion process according to an embodiment of the present invention.
Figure 6 is a schematic longitudinal cross-sectional view showing after the rebar insertion in accordance with an embodiment of the present invention.

Hereinafter, the one-touch coupler for reinforcing bars of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the ordinary or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the exemplary embodiments described in the specification and the drawings shown in the drawings are only the most preferred exemplary embodiments of the present invention, and do not represent all of the technical ideas of the present invention. It should be understood that there may be various equivalents and variations.

1 is a perspective view showing a one-touch coupler for reinforcing bars according to an embodiment of the present invention.

Referring to the drawings, the one-touch coupler 100 for reinforcing bars of the present invention is used to connect a pair of reinforcing bars (B, B ') used in civil engineering or various construction sites, a pair of coupler body ( When the end of the reinforcing bar (B.B ') is inserted into the inlet of the 120, 120'), the two reinforcing bars (B, B ') are connected to each other, and the detailed configuration and operation relationship of the one-touch coupler (100) for reinforcing bars according to the present invention. Will be described below.

Figure 2 is an exploded perspective view showing a one-touch coupler for reinforcing bars according to a preferred embodiment of the present invention, "A" of Figure 3 is a longitudinal cross-sectional view showing the inside of the socket according to a preferred embodiment of the present invention, "Is a longitudinal cross-sectional view showing the interior of the coupler body," D "is a longitudinal cross-sectional view showing the knitting body," D "is a longitudinal cross-sectional view showing the interior of the shape retaining guide, Figure 4 according to a preferred embodiment of the present invention Longitudinal sectional view showing the assembly state of the one-touch coupler for reinforcing bars.

2 to 4, the one-touch coupler 100 for reinforcing bars of the present invention is largely a socket 110, a coupler body (120, 120 '), a knitted body 130, a shape retaining guide 140 and an elastic member ( 150).

First, the socket 110 is generally formed of a metal material, and generally has a cylindrical shape, as shown in FIG. 2 and FIG. 3, threads are formed on the outer circumference, and concave on the upper and lower surfaces thereof. Receiving groove 112 is formed.

Next, the coupler body 120 is also formed of a hard metal material, and as shown in "b" of FIGS. 2 and 3, an inlet 122 into which rebar is inserted is formed at one end thereof. It is provided with a hollow portion 124 is formed with an inclined surface 126, the inner diameter gradually decreases toward the inlet 122 from the opposite side of the inlet 122. An inner diameter opposite to the inlet side of the coupler body 120 is formed with a screw portion 128 for screwing into a thread formed on the outer circumference of the socket 110. On the other hand, the inner diameter of the coupler body 120 has a shape that gradually decreases toward the inlet 122 from the opposite side of the inlet 122, the inlet 122 is formed to have a vertical surface to facilitate the reinforcement of the reinforcement Of course, it is intended to improve the robustness by forming a thicker thickness of the inlet 122 than other portions. In addition, the inclined surface 126 formed in the inner diameter of the coupler body 120 is divided into two parts, the first inclined surface formed below the inverted side or the vertical surface and the second inclined surface formed below the first inclined surface. The inclination of the two inclined surfaces may have a slope in which the inner diameter gradually decreases toward the inlet 122, and the first inclined surface may have a slope in which the inner diameter decreases more rapidly than the second inclined surface.

The coupler body 120 configured as described above is configured as a pair and is symmetrically coupled to the screw thread at the upper and lower sides of the socket 110 as shown in FIG. 4, and is provided as the upper and lower coupler bodies 120 and 120 ′. Each of the coupler bodies 120 and 120 'will be connected to each other by inserting reinforcing bars into the inlet 122.

At this time, the plurality of pieces 130, the shape maintaining guide 140 and the elastic member 150 are provided symmetrically in the interior of the coupler body (120, 120 ') disposed on the upper / lower, respectively, these components are the same The same reference numerals are used depending on the configuration and operation, and the coupler body 120 disposed on the upper side and the plurality of knitted bodies 130, the shape retaining guide 140, and the elastic member 150 disposed thereon are mainly viewed for the purpose of understanding. The one-touch coupler 100 for reinforcing bar joints of the present invention will be described.

Next, the knitting body 130 is formed in a plurality of radially, as shown in "2" of Figures 2 and 3, the outer surface corresponding to the inclined surface 126 of the coupler body 120 It has an inclination, and is installed in the hollow portion 124 of the coupler body 120 as shown in Figure 4 and connected to the inclined surface 126, the inner surface is fastened while being caught on the outer surface of the reinforcing bar preferably A plurality of adhesion protrusions 132 are formed. The close contact protrusions 132 are arranged at a predetermined pitch along the axial direction of the coupler body 120, and preferably have a ratchet sawtooth shape so as to resist tensile force applied from the bar of the rebar and prevent the rebar from falling out. The knitted body 130 is preferably made of four as shown, but it is clear that the number is not limited in the present application.

Next, the shape maintaining guide 140 may be formed of a metal material or a synthetic resin material, and as shown in "D" of FIGS. 2 and 3, through the one end of the plurality of pieces 130, the inside The body 142 is inserted and is formed to have an outwardly inclined end portion at an edge of the upper surface of the body 142 to directly support the lower surface of the contact protrusions 132 of the body 130 to the body 130. It consists of a plurality of support pieces 144 are arranged in order to prevent the flow of these to maintain the assembled state. At this time, the body 142 is preferably a cylindrical shape, it is more preferable that the mounting groove 146 for receiving the end of the reinforcement is inserted into one surface.

As shown in FIG. 4, the shape maintaining guide 140 is inserted into the plurality of pieces 130, but a plurality of pieces of the support pieces 144 having inclinations outward from the edges are provided in the pieces. 130) by directly supporting the lower surface of the contact protrusion 132 formed on the inner side of the knitted body 130 is prevented from flowing to the opposite side of the inlet coupler body 120, as well as the knitted body by the outward inclination of the support piece 144 It is possible to prevent the 130 from flowing toward the inlet of the coupler body, so that the plurality of pieces 130 can be easily prevented from flowing in the first assembled state. Furthermore, as the support piece 144 directly supports the lower surface of the contact protrusion 132, there is an advantage in that the plurality of pieces 130 may be prevented from flowing on concentric circles. At this time, the inclination of the support piece 144 may be formed to be the same as the inclination of the adhesion protrusion 132 of the knitting body 130 to improve the adhesion.

Finally, although the elastic member 150 is implemented in the form of a coil spring as shown in FIG. 2, it should be appreciated that any shape and type may be used as long as it can generate an elastic force. As shown in FIG. 4, the elastic member 150 is installed inside the hollow portion 124 of the coupler body 120 to press the knitted body 130 toward the inlet 122 of the coupler body 120. It is provided between the socket 110 and the knitted body 130 to press the knitted body 130 toward the inlet 122 of the coupler body 120 with an elastic force. The elastic member 150 supports the shape maintaining guide 140 provided to maintain the assembled state of the pieces 130 so as not to interfere, so that the shape maintaining guide 140 is separated from the pieces 130. When it is configured to not interfere with the elastic member 150.

At this time, the elastic member 150 is pressing the knitted body 130 toward the inlet 122 of the coupler body 120, but the knitted body 130 is assembled to the shape retaining guide 140, the coupler body 120 It is in close contact with the inclined surface 126 of the) to maintain the state of winning the elastic force of the elastic member 150.

Now, the operation relationship of the one-touch coupler for reinforcing bars of the present invention will be described.

5 is a schematic longitudinal cross-sectional view showing a reinforcing bar insertion process according to an embodiment of the present invention, Figure 6 is a schematic longitudinal cross-sectional view showing after the rebar insertion according to a preferred embodiment of the present invention.

5 and 6, the hollow portion 124 through the inlet 122 of the coupler bodies 120 and 120 ′ disposed up and down about the socket 110 to join the two bars B and B ′. ) If inserted into the joint, the joint is made.

That is, when the reinforcing bars (B, B ') is inserted into the plurality of pieces 130 to pass through the contact with the shape retaining guide 140 supporting the pieces 130, the reinforcement (B) is further inserted In this case, the shape retaining guide 140 supporting the plurality of pieces 130 will be separated from the pieces 130 and accommodated in the receiving groove 112 formed in the socket 110. By the restoring force of the elastic member 150, which elastically supports the 130, the knitted body 130 will be moved toward the inlet 122 of the coupler body 120. At this time, since the inner diameter of the coupler body 120 has an inclined surface 126 that gradually decreases toward the inlet 122, the outer surface of the reinforcing bar B inserted while the moving body 130 is retracted, that is, the knitted body The contact protrusions 132 formed on the inner surfaces of the 130 are pressed to the bars of the reinforcing bars (B) so that the two reinforcing bars (B, B ') are joined to each other.

On the other hand, the close contact protrusion 132 of the plurality of pieces 130 is directly supported by the support piece 144 of the shape retaining guide 140 has excellent support force, to prevent the assembly deformation of the first assembled assembly state is deformed It is possible to facilitate the reinforcement (B) insertion, as well as in the process of inserting the reinforcement (B) even if the pieces 130 are in contact with the reinforcement can maintain the assembled state well, so that a plurality of pieces 130 are simultaneously reinforced (B) can be squeezed and the tightening force will be better.

Here, the support piece 144 directly supporting the contact protrusions 132 of the pieces 130 in the shape maintaining guide 140 may be upright in the vertical direction during the separation process, the support piece 144 is an elastic force If it has been retracted and placed in the receiving groove 112 of the socket 110 will be opened again. In addition, the end portion of the reinforcing bar (B) is apparent that can be inserted deeply by receiving seated in the seating groove 146 formed in the shape maintaining guide 140, there is also an advantage that a stable fastening state can be provided as deeply inserted. .

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order to better understand the claims of the invention which will be described later. Additional features and advantages constituting the claims of the present invention will be described below. It should be appreciated by those skilled in the art that the conception and specific embodiments of the invention disclosed may be readily used as a basis for designing or modifying other structures for carrying out similar purposes to the invention.

In addition, such modifications or altered equivalent structures by those skilled in the art as a basis for modifying or designing the structures and embodiments of the invention disclosed in the present invention to other structures for carrying out the same purposes of the present invention are patents Various changes, substitutions and changes may be made without departing from the spirit or scope of the invention as set forth in the claims.

100: one-touch coupler 110 of the present invention: socket
112: accommodation home 120,120 ': coupler body
122: inlet 124: hollow part
126: inclined surface 128: threaded portion
130: body 132: contact protrusion
140: shape retaining guide 142: body
144: support 146: seating groove
150: elastic member B, B ': rebar

Claims (3)

A socket having a thread formed on its outer circumference;
A coupler body which is screwed on the upper and lower sides of the socket, and has an inlet formed at one end thereof with an inlet into which reinforcing bars are inserted, and an inclined surface having an inclined surface gradually smaller toward the inlet from the opposite side of the inlet;
A plurality of knitted bodies each having an outer side surface connected to the inclined surface in the hollow portion of the coupler body and having a close protrusion formed on the inner side of the coupler body to compress the reinforcing bars;
The body is inserted into the interior through one end of the plurality of pieces, and formed to have an inclined outward from the upper edge portion of the body to directly support the bottom of the close contact protrusion of the pieces to prevent the flow of the pieces assembled Shape maintenance guide consisting of a plurality of support pieces to maintain; And
And an elastic member installed inside the hollow portion of the coupler body to press the pieces toward the inlet of the coupler body.
The body of the shape retaining guide is cylindrical and configured to accommodate the end of the reinforcing bar is inserted into the body is formed a seating groove,
When the reinforcing bar is inserted through the inlet of the coupler body and the shape retaining guide is pushed away from the pieces, the pieces are retracted while being moved toward the inlet along the inclined surface of the coupler body by the restoring force of the elastic member to fasten the reinforcing bars. Reinforcing bar one-touch coupler, characterized in that configured to. delete delete

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