KR20190139749A - One-touch quick coupler for connecting reinforcing bar - Google Patents

Abstract

According to the present invention, a one-touch reinforcing bar coupler includes: a coupler main body formed with a hollow part having first and second tapered parts steadily tapered from both side inserting device sides into which a reinforcing bar is inserted and formed with a component inserting hole on an outer circumferential surface; a first fastening unit inserted into the first tapered part of the hollow part through the component inserting hole of the coupler main body; a second fastening unit inserted into the second tapered part of the hollow part through the component inserting hole of the coupler main body; a support member for supporting the end of the reinforcing bar installed in the coupler main body to be coupled thereto; a support member fixing part fixing the support member with respect to the coupler main body; and springs respectively supported on the support member to elastically bias the first and second fastening units to each of the first and second tapered part sides.

Description

One-touch quick coupler for connecting reinforcing bar}

The present invention relates to a reinforcing coupler, and more particularly, to a one-touch reinforcing coupler body and improved reinforcing bar support structure for connecting the reinforcing bar in the construction of the building.

In general, concrete is a composite composition in which cement, sand, gravel, water, etc. are mixed in a suitable ratio, the compressive strength is relatively high, but the tensile strength is very low compared to the compressive strength has a characteristic that is easy to crack. In order to reinforce the strength of the concrete (compensating the tensile strength), in the formwork in which concrete is poured, reinforcing bar is reinforced.

Existing reinforced concrete structure has excellent compression and tensile strength and can be used to construct various types of structures as well as its physical properties.

The reinforcement is performed in the construction of the building and the manufacture of concrete structures for various civil works, the reinforcing bar is required to be connected to the reinforcement of a predetermined length when the reinforcing work as the reinforcing bar is manufactured to a standardized length.

Connection methods for connecting reinforcing bars in ordinary reinforcement work has been proposed, such as lap joint method, welding joint method, screw joint method, connecting device joint method. The lap joint method is a method of connecting wires to the ends of overlapping reinforcing bars and interconnecting them, but there is an advantage that the reinforcement work is relatively easy. Due to its weakness, safety problems are pointed out.

On the other hand, Republic of Korea Patent No. 101643846 (2016.07.22.) Is a one-touch automatic coupler is posted. And Republic of Korea Patent No. 101102531 (2011.12.28.) Is a one-touch quick coupler for reinforcing bar is posted.

The posted quick coupler has a structure in which a pair of guide plates are installed between the bodies to be screwed to support the ends of the springs or rebars.

In addition, the Republic of Korea Patent No. 101768816 is published a coupler for iron joints, the Republic of Korea Patent No. 101654150 (2016.08.30.) Is a one-touch rebar coupler is posted. The posted one-touch reinforcing coupler is provided with knitted bodies in which a support plate is inserted into the coupler body, an elastic member for elastic biasing in a direction away from both sides of the knitted bodies, and a support plate provided between the elastic members.

The conventional rebar coupler as described above has a structure in which a guide plate or a support plate that is coupled between the pieces holding the rebars or between the collet members to support both ends of the rebars is simply inserted into the center portion of the coupler body in the longitudinal direction. There is a problem that cannot fix the position of the ends of the reinforcing bars are mutually coupled.

In particular, when the rebar insertion depth of one side to be coupled to each other is relatively deep, the position of the guide plate or the support plate is moved to one side there is a problem that can not accurately position both ends of the reinforcing bar in the center. In this case, the grip of the reinforcing bar is biased to one side, the coupling force may be lowered.

Republic of Korea Patent Registration No. 10-1643846 is a one-touch automatic coupler is posted, Republic of Korea Patent Registration No. 10-1602399 is a one-touch rebar coupler is posted. The published autocoupler has a hollow portion formed at both ends and an upper end portion of the hollow portion, and a tapered portion formed so as to increase inward diameter from the outer side to the axial inner side, and has a pair of coupler bodies that are screwed together.

Since the rebar coupler has a structure that provides a fastening force by screwing the body of the coupler to each other, the workability is relatively low, and there is a problem that the interference is caused by the internal fastener when the rebar is inserted.

Korean Unexamined Patent Publication No. 2013-0143331 discloses a rebar coupler. The posted rebar coupler includes a sleeve having a hollow portion communicating with an end portion in a longitudinal direction therein, the reinforcing bar being inserted into the hollow portion through the end portion, and having at least one opening exposing the hollow portion on an outer circumferential surface thereof; The inner surface is provided with a plurality of nodule groove is formed so that the bar of the reinforcing bar is provided with a binding member that is sandwiched between the outer peripheral surface of the reinforcing bar inserted into the hollow portion of the sleeve and the inner peripheral surface of the sleeve.

The conventional rebar coupler has a problem that the gripping force of the rebar is made by the binding member, the gripping force is relatively weak, the slip amount of the rebar is increased.

Republic of Korea Patent No. 1030579 (2011.04.21) Republic of Korea Patent Registration No. 1003302 (2010.12.22) Republic of Korea Patent Publication No. 2014-0056009 (2014.05.09.) Republic of Korea Patent No. 101654150 (2016.08.30.) Republic of Korea Patent Publication No. 2013-0143331 (2013.12.31.)

The present invention is to solve the problems as described above, it is easy to connect the reinforcing bars, and the connecting parts of the rebar is deflected to one side by being supported by the support member installed in the center of the coupler body interconnected rebars The present invention provides a one-touch rebar coupler that can be prevented.

Another object of the present invention is that the coupler main body is composed of a single member can reduce the labor of the coupler main body according to the mutual coupling as in the prior art, since mechanical processing is unnecessary, it is possible to fundamentally reduce the defect rate according to the processing, It is to provide a one-touch rebar coupler that can improve and improve productivity.

 Another object of the present invention is to reduce the interference when the reinforcing bar is inserted into the coupler main body can be made to insert the reinforcement smoothly, to increase the adhesion of the reinforcing bar and the reinforcement of the reinforcement of the reinforcing bars of the reinforcing bars To provide a one-touch rebar coupler that can increase the reliability.

One touch rebar coupler of the present invention for solving the above technical problem

 A coupler body having a hollow part having first and second tapered parts gradually expanded from both side insertion hole sides into which the reinforcing bar is inserted, and having a component inlet formed on an outer circumferential surface thereof;

A first tightening unit inserted into the first tapered part of the hollow part through the component inlet of the coupler body, a second tightening unit inserted into the second taper part of the hollow part through the component inlet of the coupler body;

A support member for supporting the end of the reinforcing bar is installed and coupled to the inside of the coupler body,

A support member fixing part for fixing the support member to the coupler body;

Springs are respectively supported by the support members to elastically bias the first and second tightening units to the first and second taper portions.

In the present invention, the support member fixing portion is formed on the inner peripheral surface of the hollow portion corresponding to the component inlet of the coupler body is formed from the inlet side of the component inlet port is formed with a support groove in which the engaging projection formed on the outer peripheral surface of the support member is supported by the shovel. .

The support member includes a cylindrical support part body in which a reinforcing support part is formed at the center part and the spring is inserted into the upper and lower parts, and a locking protrusion formed along the outer circumferential surface of the support part body to be coupled to the support groove.

A cover portion for blocking the opening of the coupler body of the outer peripheral duty free of the locking protrusion or the support body is further provided.

On the other hand, the first fastening unit is to hold the reinforcing bar, the first peripheral projection is formed on the inner circumferential contact with the outer circumferential surface of the reinforcing bar, the first taper portion corresponding to the first taper portion formed on the outer circumferential surface With 1 jaw,

The second tightening unit is for holding the reinforcing bar, the inner peripheral surface is in close contact with the outer circumferential surface of the reinforcement is formed a second projection, the second jaw is formed on the outer circumferential surface and the fourth taper portion corresponding to the second taper portion Equipped with

At least one of grooves and cutouts is formed on the inner circumferential surface or the outer circumferential surface of the first and second jaws in the longitudinal direction so as to be in close contact with the outer circumferential surface of the rebar.

In the one-touch rebar coupler according to the present invention, the coupler body is formed in a single structure, and thus the structural strength can be increased as compared with the conventional two members combined. And both ends of the reinforcing bars interconnected by the support member can be supported so that it can be located in the center of the coupler body to prevent the respective holding parts of the rebars to be deflected to one side.

The present invention can improve the assembly of the one-touch rebar coupler, can reduce the labor for connecting the reinforcing bar, and can improve the reliability of the reinforcing bar.

In the present invention, the first and second jaws constituting the first and second tightening units for holding the first and second tightening units for retaining the reinforcing bars are kept in an expanded state. It can reduce the insertion error of rebar.

1 is a partially cutaway perspective view schematically showing a concrete structure in which a one-touch rebar coupler is installed according to the present invention;
Figure 2 is an exploded perspective view of the one-touch rebar coupler according to the present invention,
3 is a cross-sectional view of the one-touch rebar coupler shown in FIG.
4 is a partially cutaway perspective view showing a state in which the rebar is crushed by the one-touch rebar coupler according to the present invention,
5 is a cross-sectional view showing a state in which the rebar is gripped by the one-touch rebar coupler shown in FIG.
6 to 8 are perspective views showing the first and second jaws of the first and second tightening units.
Figure 9 is an exploded perspective view showing another embodiment of the one-touch rebar coupler according to the present invention,
10 is a cross-sectional view of the one-touch rebar coupler shown in FIG.
Figure 11 is an exploded perspective view showing another embodiment of the one-touch rebar coupler according to the present invention,
12 is a cross-sectional view of the one-touch rebar coupler shown in FIG.
Figure 13 is an exploded perspective view showing another embodiment of the one-touch rebar coupler according to the present invention,
14 is a cross-sectional view of the one-touch rebar coupler shown in FIG.
15 is an exploded perspective view showing another embodiment of the one-touch rebar coupler according to the present invention,
16 is an exploded perspective view showing another embodiment of the one-touch rebar coupler according to the present invention;
17 is a cross-sectional view of the one-touch rebar coupler shown in FIG.

One embodiment of the one-touch rebar coupler according to the present invention is shown in Figs.

Referring to the drawings, the one-touch rebar coupler 10 according to the present invention is for interconnecting the reinforcing bar when constructing a construction of civil or concrete buildings (1), the first and second reinforcing bars 310, 320 for connection The hollow part 24 having the first and second taper parts 21 and 22 gradually expanded from the first and second insertion openings 21a and 22a on both sides into which is inserted is formed. The coupler main body 20 in which 25 was formed is provided. The first tightening unit 30 inserted into the first taper portion 21 of the hollow portion through the component injection port 25 of the coupler body 20 and the first tightening unit 30 for holding the first reinforcing bar 310, and the coupler body 20 A second tightening unit 40 is inserted into the second taper portion 22 of the hollow portion 23 through the component injection hole 25 to hold the second reinforcing bar 320.

And, it is provided with a support member 50 for supporting the end of the first and second reinforcing bars 310, 320 is installed and coupled inside the coupler body 20. The support member 50 is positioned at the center of the hollow portion 24 of the coupler body 20 by the support member fixing part 60 formed on the outer circumferential surface thereof and the coupler body 20.

First and second springs 71 for elastically biasing the first and second tightening units 30 and 40 to the first and second taper portions 21 and 22 on upper and lower portions of the support member 50, respectively. 75 are provided respectively.

The one-touch rebar coupler 10 according to the present invention configured as described above will be described in more detail by component.

Coupler body 20 of the reinforced coupler 10 according to the present invention is formed with a hollow portion 24 penetrating the center of the longitudinal direction. As described above, the hollow portion 24 includes first and second insertion openings 21a and 22a into which the first and second reinforcing bars 310 and 320 are inserted, respectively, on the upper and lower sides of the coupler body 20. The first and second tapered portions 21 and 22 extending therebetween, and the first and second tapered portions 21 and 22 are connected to each other, and a connecting portion 23 into which the supporting member 50 is inserted.

The first and second tightening units 30 and 40 and the first and second springs 71 and 75 may be smoothly inserted into the component injection hole 25 formed in the center portion of the coupler body 20. It is formed to a size. In addition, both side surfaces of the component injection hole 25 is preferably a smooth surface is formed to facilitate the insertion of parts, the support groove of the support member fixing part 60 to be described later may be formed.

On the outer circumferential surface of the coupler body 20, the first and second reinforcing bars 310 and 320 are inserted into the coupling direction, that is, the first and second reinforcing holes 21a and 22a. Alignment protrusions 27 are formed on both sides so as to correspond to the beads. In addition, a relatively thick reinforcement may be further provided on an outer circumferential surface of the central portion of the coupler body 20. 15 and 16, the outer circumferential surface of the coupler body may have a circular or polygonal shape, and the outer circumferential surface may have an inclined surface inclined to both sides from the center portion. The first and second tightening units 30 and 40 have substantially the same structure.

The first tightening unit 30 has a third taper portion 32 corresponding to the first taper portion 21, and is inserted into the hollow portion 24 of the coupler body 20 so as to insert the first taper portion 21. It is provided with a plurality of first jaws (31) for providing a holding force to the first reinforcement (310) by being moved by the first spring (71) side. The first tightening unit 30 is arranged along the outer circumferential surface of the first reinforcing bar 310, it may be made of two to four of the first jaw (31). However, it is not limited thereto.

In addition, a plurality of first protrusions 33 may be formed on the inner circumferential surface of the first jaw 31 so as to be coupled to the reinforcing bars, and the first protrusions 32 may be formed in the shape of teeth or beveled downward. have. The first protrusions 33 formed on the first jaws 31 may be continuously formed along the inner circumferential surfaces of the first jaws 31. However, the present invention is not limited thereto, and a plurality of conical protrusions, polygonal cone protrusions, and truncated cone protrusions may be formed on the inner circumferential surface of the first jaw 31.

 When the first reinforcing bar 310 is gripped on the inner surface or the outer surface of the first jaw 31, plastic or elastic deformation is smoothly performed on the outer circumferential side of the first reinforcing bar 310 that is gripped as shown in FIGS. 4 to 8. The first groove 35 is formed to be made (see FIGS. 6 and 7) or the first cutout 36 is formed by cutting a predetermined length downward from the upper end portion (see FIG. 8). However, the present invention is not limited thereto. The plurality of first grooves 35 and the first cutouts 36 may be formed.

The second fastening unit 40 has a fourth taper portion 42 corresponding to the second wiper portion 22, and is inserted into the hollow portion 23 of the coupler body 20 so as to have a second taper portion 22. It is provided with a plurality of second jaws (41) for providing a holding force to the second reinforcing bar (320) by being moved by the second elastic spring (75) to the side. On the inner circumferential surface of the second jaw 41, a plurality of second projections 43 or a plurality of conical projections, polygonal projections, and frustoconical projections, for coupling with the rebar, as in the first jaw 31 One selected may be installed.

And the inner or outer surface of the second jaw (41), such as the first jaw (31) to a length so that plastic or elastic deformation can be made smoothly in the outer peripheral direction of the reinforcing bar is gripped when the second reinforcing bar 320 is gripped The second groove 45 is formed in the direction or the second cutout 46 is formed by cutting a predetermined length downward from the upper end.

Meanwhile, inside the first and second tightening units 30 and 40, the hollow part 24 of the coupler body 20, that is, the first and second taper parts 21 and 22 may be inserted into the first and second tightening units 30 and 40. The first reinforcing bars 310 and the second reinforcing bars 320 in the state of being elastically biased to the outside by the first and second springs 71 and 72 before the first and second bars 310 and 320 are gripped. First and second jaw expansion unit 80, 90 for expanding the inlet side is inserted is installed.

 The first and second jaw expanding units 80 and 90 have substantially the same structure.

Each of the first jaw expanding units 80 has a first inlet groove 81 formed in a circumference at the same position of the inner circumferential surfaces of the first jaws 31, and both ends of the first jaw expanding unit 80 are formed on the inner circumferential surface of the first jaw openings 81. A spaced or superimposed first expansion ring 82 is installed, the second jaw expansion unit 90 is each of the second recessed groove 91 in the circumferential direction at the same position of the inner circumferential surface of the second jaw (41) 2 is formed, and the second extension ring 92 is provided with an inner circumferential surface of the second inlet groove 91 at which both ends are spaced apart or overlapped. The first and second inlet grooves 81 and 91 are preferably formed to be located at the central portion in the longitudinal direction of the first and second jaws 31 and 41 or the upper side thereof. The first inlet groove 81 is preferably formed in an area corresponding to the third taper portion 32, and the second inlet groove 92 is preferably formed in an area corresponding to the fourth taper portion 42. The diameter of the first and second expansion rings 82 and 92 is preferably to have a diameter relatively larger than the diameter of the hollow portion of the coupler body 20 as much as possible. The first and second extension rings 82 and 92 may be formed as elastic rings, but are not limited thereto. In addition, the first and second extension rings 82 and 92 may not protrude from the inner circumferential surface of the first jaw or the second jaw so that interference with the reinforcing bars is not generated.

On the other hand, the support member 50 is inserted into the component inlet 25 formed in the central portion of the coupler body 20 is coupled to the coupler body 20 by the support member fixing part 60.

The support member 50 may be formed in a disk shape, but is not limited thereto. As shown in FIGS. 2 and 11 to 16, first and second reinforcing bars which are mutually coupled to a central portion of the cylindrical support part body 51 are illustrated in FIG. Plate-shaped reinforcing bar support portion 52 for supporting 310 and 320 so as to correspond to each other is provided. The reinforcing bar support unit 52 may be integrally formed with the support unit body 51.

The inner diameter of the support body 51 is formed to have a diameter larger than the diameter of the reinforcing bar so that the ends of the first and second reinforcing bars 310 and 320 can be inserted, and the outer diameter is the first and second springs 71. ) Is formed relatively smaller than the diameter of the first and second springs 71 and 75 so that the (75) can be inserted.

The support member 50 is fixed to the support member fixing part 60 to the hollow portion 23 of the portion in communication with the component inlet 25 of the coupler body 20. 2 and 9, the support member fixing part 60 has a locking protrusion 61 formed on an outer circumferential surface of the support body 51, and the locking protrusion is formed on a corresponding inner wall of the component injection hole 25. A supporting groove 62 is formed to be coupled with the 61 and is formed by combining them. And one side of the locking projection 61 is provided with a cover portion 65 for blocking the component inlet 25. The cover part 65 is preferably coupled to the component inlet 25 when the support member 50 is coupled by the supporting member fixing unit 60 to block the component inlet 25.

The engaging projection 61 on the outer circumferential surface supports the first and second springs 71 and 75 respectively inserted from the upper and lower portions of the support part body 51.

As another embodiment of the support member fixing portion, as shown in FIGS. 11 to 15, a support pin for penetrating the coupler body 20 and the support member 50 to support the support member 50 to the coupler body 20. And (67). The support pin 67 may be screwed with the snap ring or coupler body so that the support pin 67 is not easily separated from the coupler body 20 when coupled with the coupler main body 20. When the support member 50 is supported by the support pin 67, the support member 50 may not be separated into two like the first and second springs 71 and 75, but may be formed of a single body, that is, a single continuous spring. have. 11, 15, and 17, a donut washer member 77 and 78 of the spring and the first and second tightening units may be further provided.

Meanwhile, FIG. 16 and FIG. 17 show another embodiment of the coupler body 20 and a supporting member coupled thereto. In the present embodiment, the same reference numerals as the above embodiment indicate the same components.

Referring to the drawings, the component inlet 100 is formed to penetrate the central portion of the coupler body 20, and the support member 110 is inserted into the component inlet 100. The component injection hole 100 and the support member 110 may be formed in the shape of a cube having a quadrangular shape, but is not limited thereto. The support inner fixing surface 120 is formed on the corresponding inner circumferential surface of the component injection hole 100 and both outer peripheral surfaces of the supporting member 110, and the supporting fixing portion 120 has a locking protrusion 121 on both sides of the supporting member 110. The support groove 122 is formed on the inner circumferential surface of the component injection hole penetrating the couple main body 20. Since the component injection hole 110 formed in the coupler body 20 is penetrated, it can be selectively inserted at both sides.

Reinforcing support grooves 111 and 112 are formed on the upper and lower surfaces of the support member 110 to support the ends of the first and second reinforcing bars 310 and 320, respectively. The first and second rebars 310 and 320 and a double spring may be supported in the reinforcing support grooves 111 and 112, respectively. However, the present invention is not limited thereto, and separate spring support grooves may be formed on the upper and lower surfaces of the support member 110 to support the sputtering. Herein, the inner diameters of the first and second springs 71 and 75 are substantially the same as or larger than the diameters of the first and second reinforcing bars 310 and the same as the arranged diameters of the first and second inserting units before the coupling. Should be small or small. In addition, when assembling the first and second rebars 310 and 320, it is obvious that interference should not occur in the insertion of the first and second rebars 310 and 320 to the first and second springs 71 and 75, respectively. Do.

Referring to the operation of the one-touch rebar coupler 10 according to the present invention configured as described above are as follows.

First, in order to interconnect the first and second reinforcing bars 310 and 320, since the coupler body 20 is formed of a single body, the first tightening unit is provided with a first expansion unit through the component inlet 25. 30 is inserted into the first taper portion 21 and a first spring 71 for suppressing the same is inserted. Then, the second tightening unit 40, on which the second expansion unit is mounted, is inserted into the second taper portion 21, and the second spring 75 is inserted.

And the support member 50 is inserted into the component inlet 25 of the coupler body 20. The first spring 71 may be supported by the upper side of the support member 50, and the second spring 71 may be supported by the lower side of the support member 50. As a result, the first tightening unit 30 is elastically visored to the first insertion opening 21a by the first spring 71, and the second tightening unit 40 is second by the second spring 75. It is elastically biased toward the insertion opening 22a.

At this time, the support member 50 is supported by the support member fixing part 60, the support member fixing part 60 is formed on the outer circumferential surface of the support part body 51, the engaging projection 61 is the inner circumferential surface of the coupler body 20 It may be made by being inserted into the support groove 62 formed in the. However, when the support pin 65 is coupled to the coupler body 20, the support pin 65 is inserted through the coupler body 20 and the support member as shown in FIGS. 13 and 14. Can be done. Therefore, the support member 50 is fixed to the inside of the coupler body 20 and is located at the central portion in the longitudinal direction of the coupler body 20.

In this state, in order to connect the first and second reinforcing bars 310 and 320 using the one-touch rebar coupler 10, the first and second reinforcing bars 21a and 22a of the coupler main body 20 are connected to each other. Reinforcing bars are inserted into the first tightening unit 30 and the second tightening unit 40 located therein.

In this process, first and second jaw expansion units 80 and 90 are installed in the first and second tightening units 30 and 40, respectively, so that the inlets of the first and second tightening units 50 and 60 are installed. Since it is maintained in an expanded state, the first and second rebars 200 and 210 are smoothly inserted.

In further detail, the first tightening unit 50 supported by the first taper portion 21 of the hollow portion 23 of the coupler body 20 may be formed by the first spring 71 of the coupler body 20. It is elastically biased outward, and is expanded outwardly by the first extension ring 82 installed on the inner circumferential surfaces of the first jaws 31 constituting the first tightening unit 30. It forms a space. The second tightening unit 40 also has a structure in which the second jaws 41 are extended by the second extension ring 92 as described above.

And the first and second reinforcing bars 310, 320 is inserted as described above, since the support member 50 is located in the center of the coupler body 20 by the support member fixing part 60, the first, The insertion depth of the two rebars 310 and 320 is uniform. Therefore, due to the non-uniformity of the gripping length, it is possible to prevent the coupling force from being lowered, and to prevent the first and second tightening units 30 and 40 from being deflected to one side. In addition, the first and second reinforcing bars 310 and 320 supported by the support member 50 may be inserted into the first and second springs 71 and 75, respectively. Since the outer diameter of the first reinforcing steel 310 is substantially the same or larger, and the inner diameter of the second spring 72 and the outer diameter of the second reinforcing steel 320 are substantially the same, the bearing capacity of the reinforcing steel and the straightness of the steel can be improved.

When a tensile force is applied to the first and second reinforcing bars 310 and 320 in the combined state as described above, the first tightening unit 30 is moved upward. Accordingly, the third taper portions of the first jaws 31 of the first tightening unit 30 are pressed toward the outer circumferential surface side of the first rebar 310 while being relatively moved with the first taper portion 21. The second tightening unit 40 moves downward like the first tightening unit 30, and the fourth taper part of the second jaws 41 of the second tightening unit 40 is connected to the second taper part 21. The relative movement is pressed to the outer peripheral surface side of the second rebar (320).

In this process, the first jaw 31 and the second jaw 41 are elastically or plastically deformed in the circumferential direction because the first and second grooves 35 or the cutouts 36 are formed on the inner and outer circumferential surfaces thereof. The adhesion between the outer circumferential surfaces of the first and second rebars 310 and 320 may be increased. Therefore, the holding force of the rebar can be further increased.

As described above, in the one-touch rebar coupler according to the present invention, since the coupler body is integrally formed, the structural strength can be increased, and a part inlet is formed at the center of the coupler body, and the support member is installed therein, so that the reinforcing bar is connected to the coupler body. It is biased to one side with respect to the center of the gripping can be prevented, and the reliability of the reinforcing bar can be increased.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible.

Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

The one-touch rebar coupler of the present invention is widely applicable to the connection of reinforcing bars as well as pipes, bolts, section steel, rods, etc. used in various industrial facilities.

Claims (7)

A coupler body having a hollow part having first and second tapered parts gradually expanded from both side insertion hole sides into which reinforcing bars are inserted, and having a component inlet hole integrally formed on an outer circumferential surface thereof;
It is inserted to the first tapered portion of the hollow portion through the component inlet of the coupler body for gripping the reinforcing bar, the inner peripheral surface is in close contact with the outer peripheral surface of the reinforcing bar is formed, the first tapered portion on the outer peripheral surface A first tightening unit having first jaws formed with a third taper portion corresponding thereto;
It is inserted into the second tapered portion of the hollow portion through the component inlet of the coupler body for gripping the reinforcing bar, the inner peripheral surface is in close contact with the outer circumferential surface of the reinforcing bar is formed, the second tapered portion on the outer peripheral surface A second tightening unit having second jaws formed with a fourth taper portion corresponding to
Support member for supporting the end of the reinforcing bar is installed and coupled inside the coupler body,
A support member fixing part for fixing the support member to the coupler body;
One-touch reinforcing coupler, characterized in that the support member is provided with springs for elastically biasing the first and second tightening units to the first and second tapered portions, respectively. The method of claim 1,
The support member fixing part is formed on the inner peripheral surface of the hollow portion corresponding to the component inlet of the coupler body is formed from the inlet side of the component inlet, the one-touch reinforcement is characterized in that the support groove is formed to support the engaging projection formed on the outer peripheral surface of the support member Coupler. The method of claim 2,
The support member is a one-touch rebar coupler characterized in that the reinforcing support portion is formed in the center and the cylindrical support portion body is inserted into the spring in the upper and lower portions, and the engaging projection is formed along the outer peripheral surface of the support portion body coupled to the support groove . The method of claim 3, wherein
One-touch rebar coupler, characterized in that the cover portion for blocking the opening of the coupler body the outer peripheral duty free of the locking projection or the support portion main body. The method of claim 1,
One-touch rebar coupler characterized in that at least one of grooves, cutouts in the longitudinal direction is formed on the inner circumferential surface or the outer circumferential surface of the first and second jaws to be in close contact with the outer circumferential surface of the rebar. The method of claim 1,
The first and second tightening units, respectively, are inserted into the hollow portion of the main body, the first jaw expansion unit to expand the first jaw to facilitate the retracting of the reinforcement, and the second jaw expansion to expand the second jaw A one-touch rebar coupler, further comprising a unit. The method of claim 1,
The support member fixing part for fixing the support member is a one-touch rebar coupler, characterized in that the coupler body and the support member penetrates and both ends are supported pins are supported on the coupler body.

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