KR20200009747A - One-touch type steel easy coupler for biting iron rod - Google Patents

Abstract

A one-touch easy coupler according to the present invention comprises: a first tightening unit for tightening an end portion of a rebar inserted therein; a second tightening unit for tightening an end portion of the opposite rebar inserted therein; first and second elastic members positioned to surround end portions of the first and second tightening units, respectively, so that an elastic force is applied in a radial direction to keep the end portions of the first and second tightening units tightened; a first coupling unit provided with the first tightening unit positioned therein; and a second coupling unit provided with the second tightening unit positioned therein and coupled to the first coupling unit. According to the present invention, when neighboring rebars are inserted into the first and second tightening units that have been kept tightened by elastic force, the elastic force applied in the radial direction after the insertion makes the end portions of the first and second tightening units tightened, so the multiple rebars can be connected to each other easily and quickly in a one-touch manner. In addition, when neighboring rebars are inserted into third and fourth tightening units, an elastic force between the third and fourth tightening units applied to the third and fourth tightening units in the opposite directions, respectively, makes end portions of the third and fourth tightening units tightened, so the rebars can be connected easily and firmly in the one-touch manner. As a result, reductions in working hours can be expected.

Description

One-touch Easy Coupler {ONE-TOUCH TYPE STEEL EASY COUPLER FOR BITING IRON ROD}

The present invention relates to a one-touch easy coupler, and more particularly, to a coupler that can be easily and simply fastened by a pair of reinforcing bar reinforced.

In general, rebars used in reinforced concrete structures should be joined at regular lengths due to the limitation of the production length or the construction method.

The reinforcing method of the reinforcing bar can be divided into overlapping joints that transfer the stresses of the reinforcing bars and gas pressure welding joints and mechanical joints that directly transfer the stresses of the reinforcing bars for attachment to concrete around the reinforcing bars.

Lap joint is a traditional method of overlapping reinforcing bars and reinforcing bars to a certain length so that the joint through the adhesion to the concrete, the most commonly used joint method.

In addition, welded joints have the advantage that the protruding length of the reinforcing bar is short and the joint can be made in a narrow place, and the work time can be minimized during arc-stud welding. Strike-slip Mechanism is a concern when there is an earthquake along with the excessive time, the change of construction quality according to the climate, and the need for skilled workers.

On the other hand, the mechanical joint is a method of connecting the reinforcing bars that can resist the tensile force regardless of the attachment strength of the concrete by connecting by using the intermediate member (coupler) between the two rebars. According to the method and type of joint, it is divided into screw type, steel pipe crimp type, wedge type, mortar filling type, etc., and its use is continuously increasing.

A technology related to a device for connecting a plurality of rebars has been proposed in Korean Patent No. 0443594.

Patent document 1 discloses a reinforcing bar connecting device which can prevent entry errors of reinforcing bars by fixing the position of a piece, and forms a support seating plate serving as a stopper for reinforcing bars into a rigid structure.

However, Patent Document 1 has a problem in that the process and work time increases because the tightening nut should be tightened after inserting each of the reinforcing bars on both sides in a state in which the coupling portion is positioned inside the fixing part, respectively, in order to connect the plurality of reinforcing bars.

Korean Patent Registration No. 0443594 (2004.07.28)

The present invention has been made in view of the above point, the problem of the present invention, when inserting the neighboring reinforcing bars in the interior of the first and second tightening portion was maintained in the tightening state by the elastic force after insertion radial direction The purpose of the present invention is to provide a one-touch easy coupler capable of easily and quickly connecting a plurality of reinforcing bars by a one-touch method because the elastic force applied to tighten the ends of the first and second fastening parts.

One-touch easy coupler according to the present invention for achieving the above object, the first tightening portion for tightening the reinforcing end of one side inserted therein; A second fastening part for tightening the rebar end of the other side inserted therein; First and second elastic members positioned to surround end portions of the first and second tightening portions, respectively, and an elastic force is applied in a radial direction to maintain end portions of the first and second tightening portions; A first coupling part provided to be positioned inside the first tightening part; And a second coupling part provided to be positioned inside the second fastening part and fastened to the first coupling part.

The first and second fastening parts may be radially provided with first and second fastening pieces having an inlet bent outward at an end at which the rebar end is inserted.

The first and second fasteners may be integrally formed with the first and second fasteners while being divided by radial slit holes in the first and second fasteners.

The first and second fasteners may be divided by the radial slit holes in the first and second fasteners, and end portions provided separately from the first and second fasteners may be rotatably connected by hinges.

The first and second elastic members may be formed in an annular shape.

In addition, the present invention, the first tightening piece is divided by the radial slit hole to tighten the reinforcing end of one side inserted therein, the third tightening portion is formed with a first inclined surface on the outer peripheral surface of the first tightening piece; A fourth tightening part in which a second tightening piece is divided by a radial slit hole so that the other end of the reinforcing bar inserted therein is tightened, and a second inclined surface is formed on an outer circumferential surface of the second tightening piece; A third elastic member positioned between opposite ends of the third and fourth fasteners to apply elastic forces to the third and fourth fasteners in opposite directions; A third coupling part provided to be positioned inside the third tightening part, and having a third inclined surface formed on an outer circumferential inner circumferential surface of the third tightening part so as to correspond to a first inclined surface of the third tightening part, and having a spiral formed on the inner circumferential inner circumferential surface; And a fourth inclined portion disposed inside the fourth inclined portion, the fourth inclined surface formed on the outer end inner circumferential surface to correspond to the second inclined surface of the fourth tightening portion, and the third coupling portion and the third coupling portion spiraled on the inner end outer circumferential surface. And a fourth coupling part having a spiral formed thereon.

According to the present invention, when the neighboring reinforcing bar is inserted into the first and second tightening parts which are held in the tightened state by the elastic force, the elastic force applied in the radial direction after the insertion is tightened to the ends of the first and second tightening parts. Therefore, it is possible to easily and quickly connect a plurality of rebars by one-touch method.

In addition, in the present invention, when the reinforcing bars are inserted into the third and fourth fasteners, the elastic force applied to the third and fourth fasteners in the opposite direction between the third and fourth fasteners may be applied to the third and fourth fasteners. Since tightening the end of the tightening part can be fastened easily and firmly by the one-touch method, there is an effect that can reduce the working time.

1 is an exploded perspective view showing a one-touch easy coupler according to a first embodiment of the present invention.
Figure 2 is an exploded perspective view showing a state before coupling the rebar to the one-touch easy coupler according to the first embodiment of the present invention.
3 is an exploded perspective view showing a state after coupling the rebar to the one-touch easy coupler according to the first embodiment of the present invention.
4 is a front view illustrating the first and second elastic members in the one-touch easy coupler according to the first embodiment of the present invention.
5 is a front view showing another embodiment of the first and second elastic members of the one-touch easy coupler according to the first embodiment of the present invention.
6 is a cross-sectional view showing another embodiment of the first and second fasteners of the one-touch easy coupler according to the first embodiment of the present invention.
7 is an exploded perspective view showing a one-touch easy coupler according to a second embodiment of the present invention.
8 is a cross-sectional view showing an exploded state of the one-touch easy coupler according to the second embodiment of the present invention.
9 is a cross-sectional view showing a procedure for connecting the reinforcing bar to the one-touch easy coupler according to the second embodiment of the present invention.
10 is a cross-sectional view showing a coupling structure between the first and second fasteners and the third elastic member in the one-touch easy coupler according to the second embodiment of the present invention.

The above objects, features and other advantages of the present invention will become more apparent by describing the preferred embodiments of the present invention in detail with reference to the accompanying drawings. Hereinafter, a one-touch easy coupler according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing a one-touch easy coupler according to a first embodiment of the present invention, Figure 2 is an exploded view showing a state before coupling the reinforcing bar to a one-touch easy coupler according to a first embodiment of the present invention 3 is an exploded perspective view showing a state after coupling the reinforcing bar to the one-touch easy coupler according to the first embodiment of the present invention, Figure 4 is a one-touch easy coupler according to the first embodiment of the present invention 5 is a front view showing the first and second elastic members, FIG. 5 is a front view showing another embodiment of the first and second elastic members of the one-touch easy coupler according to the first embodiment of the present invention, and FIG. Fig. 1 is a cross-sectional view showing another embodiment of the first and second fasteners of the one-touch easy coupler according to the first embodiment of the present invention.

1 to 5, the one-touch easy coupler 100 according to the first embodiment of the present invention may include a first coupling part 110, a second coupling part 120, a first tightening part 130, It includes a second fastening portion 140, the first elastic member 150 and the second elastic member 160, it is a device that can be easily fastened to the pair of opposing reinforcing bars (10, 20) by a one-touch method.

In this case, the first coupling part 110, the second coupling part 120, the first fastening part 130, and the second fastening part 140 may be made of a metal material, and the like, and heat treatment may be implemented according to each configuration. Can be.

The first coupling portion 110 is formed in the shape of a lying down truncated cone, spiral portion 112 formed at the rear end of the inner circumferential surface (right side of FIG. 2), and chamfered surface 114 formed on the end of the outer circumferential surface (left side of FIG. 2) and the inside. It includes a first receiving space 116 formed in the transverse direction.

The spiral portion 112 is formed at the rear end of the inner circumferential surface of the first coupling portion 110 so as to be spirally coupled to the spiral portion 122 of the second coupling portion 120.

The face mask surface 114 is radially machined by a machining process such that a tool such as a spanner may be bitten when the first coupling unit 110 and the second coupling unit 120 are fastened.

The first accommodating space 116 is a space in which the first fastening part 130 is located. The diameter of the first accommodating space 116 is gradually increased from the front end (left side of FIG. 2) to the rear end (right side of FIG. 2) so that the diameter is small. The first fastener 130 is not separated through the tip.

The second coupling part 120 is formed in the shape of a lying down truncated conical symmetry with the first coupling part 110, the spiral part 122 formed on the outer circumferential front end (left of FIG. 2), and the rear end of the outer circumferential surface (right of FIG. 2) ) Includes a chamfered surface 124 and a second accommodating space 126 penetrated in the transverse direction therein.

The spiral part 122 is formed at the tip of the outer circumferential surface of the second coupling part 120 to be helically fastened with the spiral part 112 of the first coupling part 110.

The face mask surface 124 is radially machined by a machining process so that a tool such as a spanner may be bitten when the second coupling part 120 and the first coupling part 110 are fastened.

The second accommodating space 126 is a space in which the second fastener 140 is located, and the diameter is gradually increased from the front end (right side of FIG. 2) to the rear end (left side of FIG. 2) so that the diameter is small. The second fastener 140 is not separated through the tip.

Furthermore, the interference member 128 is formed along the inner circumferential surface of the rear end of the second accommodation space 126 (left of FIG. 2) to define the backward positions of the first and second fasteners 130 and 140.

Here, the interference member 128 may be formed in an annular or disc shape, and may be fixed to the inner circumferential surface of the second receiving space 126 by a spiral fastening method.

In addition, although not shown in the drawings, the first and second spiral protrusions are formed on the outer circumferential surface of the extension part extending in the horizontal direction on the front and rear surfaces of the interference member 128 spirally fastened to the inner circumferential surface of the second accommodation space 126. Spiral grooves may be formed on the inner circumferential surfaces of the tightening parts 130 and 140 to fasten the first and second tightening parts 130 and 140 to the front and rear surfaces of the interference member 128.

The first fastener 130 is formed in the form of a collet (collet) to tighten the end of the reinforcing bar 10 of the one side inserted therein.

At this time, the first tightening portion 130 is formed by splitting the first tightening piece 132 by a radial slit hole (134) to tighten the end of the one side reinforcing bar (10).

Here, since the slit hole 134 is formed in the entire length of the first coupler 110 more than half, the elastic function is exerted by the curved inner end, so that the slit hole 134 is one side of the reinforcing bar 10 together with the restoring force of the first elastic member 150. ) Acts to increase the tightening force.

On the other hand, the first tightening piece 132 is illustrated as being formed in the four first tightening unit 130, but is not limited to this number can be increased or decreased.

That is, the first fastening piece 132 is integrally formed with the first fastening part 130 while being divided by the slit hole 134 formed in the first fastening part 130.

Furthermore, the first tightening piece 132 is formed with a first bent portion 132a formed by bending an outer end inlet of which one end of the one side rebar 10 is inserted in the outward direction.

The first bent portion 132a has a rounded inner surface that is bent so that the ends of the first tightening pieces 132 are easily opened when the end of the one reinforcing bar 10 is inserted. The protrusions 133 formed in the form of a plurality of teeth are formed on the inner surface from the first bent portion 132a to the tip of the first fastening piece 132 so as to be in close contact with the end of the one side rebar 10. The protrusion 133 is formed in a right triangular shape in which the inclined surface is formed in the insertion direction of the one side reinforcing bar 10 and the vertical surface is formed in the rear of the inclined surface. Pulling (10) will prevent the rebar surface from being pulled out by the vertical plane.

The second fastener 140 is formed in a collet form symmetrical with the first fastener 130 so as to tighten the end of the other reinforcing bar 20 inserted therein.

At this time, the second fastening portion 140 is divided by the second tightening piece 142 by the radial slit hole 144 to tighten the end of the other reinforcing bar 20.

Here, since the slit hole 144 is formed in more than half the entire length of the second coupler 120, the elastic function is exhibited by the curved inner end portion, so that the other reinforcing bar 20 together with the restoring force of the second elastic member 160. ) Acts to increase the tightening force.

On the other hand, the second fastening piece 142 has been illustrated that four are formed so as to correspond to the first fastening piece 132, but the number is not limited to this can be changed to match the number of the first fastening piece (132).

That is, the second fastening piece 142 is formed integrally with the second fastening part 140 while being divided by the slit hole 144 formed in the second fastening part 140.

Further, the second tightening piece 142 is formed with a second bent portion 142a in which the outer end inlet of which the end of the other reinforcing bar 20 is inserted is bent in the outward direction.

The second bent portion 142a has a rounded inner surface formed so that the ends of the second tightening pieces 142 are easily opened when the end portion of the other rebar 20 is inserted. In addition, the protrusions 143 formed in the form of a plurality of teeth are formed on the inner surface from the second bent portion 142a to the tip of the second fastening piece 142 so as to be in close contact with the end of the other rebar 20. The protrusion 143 is formed in a right triangle shape in which the inclined surface is formed in the insertion direction of the other reinforcing bar 20 and the vertical surface is formed in the rear of the inclined surface. Pulling 20 will prevent the rebar surface from being pulled out by the vertical plane.

As shown in FIG. 4, the first elastic member 150 is provided in an annular shape so as to surround and tighten the outer surface of the first bent portions 132a which are the ends of the first fasteners 130. An elastic force is applied in the radial direction of the first coupling part 110 to maintain the end of the 130 is closed.

At this time, the first elastic member 150 is applied to the tension spring, it is provided to form an annular connection by connecting both ends of the tension spring wound by the O-ring or the set length.

In addition, the first elastic member 150 ′ may be formed in a spiral shape as shown in FIG. 5. In this case, the winding diameter may gradually decrease as the thickness becomes thicker from the inner end (right side of FIG. 2) to the outer end (left side of FIG. 2). This is the first elastic member 150 ′ positioned at the first bent portion 132a so that the most elastic force is applied when the first bent portion 132a is most opened when the one side rebar 10 is inserted. Since the thickness of the thickest, the gap between the first tightening portion 130 and the first tightening piece 132 toward the connection point is reduced, so that the thickness is gradually formed to be thinner.

Although not shown in the drawings, the first elastic member may be configured in multiple stages having different diameters while maintaining the annular shape. That is, the first elastic member is provided to connect both ends of the tension spring wound by the set length to form an annular shape, the innermost spring is provided with the smallest diameter and the outer spring is wrapped to have a middle diameter It is to provide a spring with a large diameter to surround the outside. In this case, the first elastic member is illustrated as being composed of three stages, but is not limited to this, the number of stages can be increased or decreased.

As shown in FIG. 4, the second elastic member 160 is provided in an annular shape so as to surround and tighten the outer surface of the second bent portions 142a, which are the ends of the second fasteners 140, and the second fasteners ( An elastic force is applied in the radial direction of the second coupling part 120 to maintain the end of the 140 is closed.

At this time, the second elastic member 160 is applied to the tension spring, it is provided to form an annular by connecting both ends of the tension spring wound by the O-ring or the set length.

In addition, the second elastic member 160 ′ may be formed in a spiral shape as shown in FIG. 5. In this case, as the thickness increases from the inner end (the right side of FIG. 2) to the outer end (the left side of FIG. 2), the winding diameter may be gradually increased. The second elastic member 160 ′ positioned at the second bent portion 142a so that the most elastic force is applied when the second bent portion 142a is most opened when the other rebar 20 is inserted. Since the thickness of the thickest, and the gap is reduced toward the connection point between the second fastening portion 140 and the second fastening piece 142 is formed to be thinner gradually.

Although not shown in the drawings, the second elastic member may be configured in multiple stages having different diameters while maintaining the annular shape. That is, the second elastic member is provided to connect both ends of the tension spring wound by a set length to form an annular shape, the innermost spring is provided with the smallest diameter and the outer spring is wrapped to have a middle diameter It is to provide a spring with a large diameter to surround the outside. In this case, although the second elastic member is illustrated as being composed of three stages, the number of multiple stages is not limited thereto.

The process of connecting one and the other reinforcing bars 10 and 20 through the one-touch easy coupler 100 according to the first embodiment of the present invention is as follows.

First, the first fastening part 130 is inserted into the first accommodating space 116 of the first coupling part 110, and the second fastening part 130 is inserted into the second accommodating space 126 of the second coupling part 120. In the state in which the pregnant woman 140 is inserted, the first coupling part 110 and the second coupling part 110 and the spiral part 122 of the second coupling part 120 are fastened to each other. The coupling part 120 is to maintain a fully fastened state.

Next, when the end of the one side of the reinforcing bar 10 is inserted through the inlet of the first receiving space 116 of the first coupling portion 110, the end of the one side of the reinforcing bar 10 has a narrow first tightening piece ( The first bent portion 132a of 132 is opened.

At this time, since the first elastic member 150 is provided in the first bent portion 132a of the first tightening piece 132 which is opened while inserting the end of the one side rebar 10, the elastic force of the first elastic member 150 is provided. And, by pressing the circumferential surface of the first bent portion (132a) by the restoring force (elastic force) of the first tightening piece 132 is firmly fixed so that one side reinforcement (10) does not fall out.

On the other hand, when the first tightening piece 132 is closed or spread to one end of the reinforcing bar 10 by the curved inner end of the slit hole 134 formed in more than half of the entire length of the first coupler 110 Since the elastic function is exerted, the tightening force of one end of the reinforcing bar 10 is increased along with the restoring force of the first elastic member 150.

Next, when the end of the other reinforcing bar 20 is inserted through the inlet of the second receiving space 126 of the second coupling portion 120, the end of the other reinforcing bar 20 has a narrow second tightening piece ( The second bent portion 142a of 142 is opened.

At this time, since the second elastic member 160 is provided in the second bent portion 142a of the second fastening piece 142 that is opened while inserting the end of the other rebar 20, the elastic force of the second elastic member 160 is provided. And, by the restoring force (elastic force) of the second tightening piece 142 is pressed by the circumferential surface of the second bent portion (142a) it is firmly fixed so that the other reinforcing bar 20 does not fall out.

And, by the curved inner end of the slit hole 144 formed in more than half the entire length of the second coupler 120 when the second tightening piece 142 is retracted or opened to the other end of the reinforcing bar 20 Since the elastic function is exerted, the force tightening the end of the other reinforcing bar 20 together with the restoring force of the second elastic member 160 is increased.

Meanwhile, the first and second fastening pieces 132 ′ and 142 ′ of the other embodiment have radial slit holes 134 ′ and 144 ′ in the first and second fasteners 130 ′ and 140 ′ as shown in FIG. 6. The split ends of the first and second fasteners 130 'and 140' are rotatably connected to each other by the hinge H. In this case, the first and second bent portions 132a 'and 142a' are hinged when the end portions of the one and the other reinforcing bars 10 and 20 are inserted into the first and second tightening portions 130 'and 140'. The first and second tightening pieces 132 ′ and 142 ′ and the first and second tightening parts 130 ′ and 140 are compared to the case where the first and second fastening pieces 132 ′ and 142 ′ are integrally provided. There is no load (stress concentration) at the connection point with ').

7 is an exploded perspective view illustrating a one-touch easy coupler according to a second embodiment of the present invention, and FIG. 8 is a cross-sectional view illustrating an exploded state of a one-touch easy coupler according to a second embodiment of the present invention. 9 is a cross-sectional view showing a procedure for connecting the reinforcing bar to the one-touch easy coupler according to the second embodiment of the present invention, Figure 10 is a first and second fasteners in the one-touch easy coupler according to a second embodiment of the present invention; It is sectional drawing which shows the coupling structure with a 3rd elastic member.

7 to 10, the one-touch easy coupler 200 according to the second embodiment of the present invention may include a third coupling part 210, a fourth coupling part 220, a third tightening part 230, It includes a fourth fastening unit 240 and the third elastic member 250, it is a device that can be easily fastened by a one-touch method of the pair of reinforcing bars (10, 20).

In this case, the third coupling part 210, the fourth coupling part 220, the third fastening part 230, and the fourth fastening part 240 may be made of a metal material, and the like, and heat treatment may be implemented according to each configuration. Can be.

The third coupling portion 210 is formed in the shape of a cylindrical nut, the spiral portion 212 formed at the rear end of the inner circumferential surface, the chamfered surface 214 formed at the tip of the outer circumferential surface, and the third inclined surface 216 formed at the tip on the inner circumferential surface It includes.

The spiral portion 212 is a spiral groove that is coupled to the spiral portion 222 that is the spiral protrusion of the fourth coupling portion 220 to fasten the fourth coupling portion 220 to the third coupling portion 210.

The chamfering surface 214 is radially chamfered by machining so that a tool such as a spanner may be bitten when the third coupling portion 210 is engaged with the fourth coupling portion 220.

The third inclined surface 216 is formed as a taper having a corresponding angle to be coupled to the first tapered portion of the third tightening portion 230 which will be described later. At this time, when one fastening amount of the third coupling part 210 and the fourth coupling part 220 is gradually increased in the state where one side reinforcing bar 10 is inserted into the third fastening piece 232 of the third fastening part 230. The back surface of the third tightening unit 230 is in close contact with the front surface of the fourth tightening unit 240, and the outer peripheral surface of the first inclined surface formed at the tip of the outer peripheral surface of the third tightening unit 230 is in close contact with the inner peripheral surface of the third inclined surface 216. After pressing, the third fastening piece 232 of the third fastening part 230 is moved uniformly toward the center direction.

The fourth coupling portion 220 is formed in the shape of a cylindrical nut, the spiral portion 222 formed at the tip of the inner circumferential surface, the chamfered surface 224 formed at the tip of the outer circumferential surface, and the fourth inclined surface 226 formed at the tip on the inner circumferential surface. It includes.

The spiral portion 222 is a spiral protrusion that is coupled to the spiral portion 212, which is a spiral groove of the third coupling portion 210, in order to fasten the third coupling portion 210 to the fourth coupling portion 220.

The chamfering surface 224 is radially chamfered by machining so that a tool such as a spanner may be bited when the fourth coupling part 220 is coupled to the third coupling part 210.

The fourth inclined surface 226 is formed as a taper having a corresponding angle to be coupled to the second inclined surface of the fourth fastener 240, which will be described later. At this time, when the fastening amount of the fourth coupling part 220 and the third coupling part 210 is gradually increased in the state where the other reinforcing bar 20 is inserted into the fourth fastening piece 242 of the fourth fastening part 240, The back surface of the four fasteners 240 is in close contact with the back surface of the third fasteners 230, and the outer circumferential surface of the second inclined surface formed at the tip of the outer circumferential surface of the fourth fastener 240 is in close contact with the inner circumferential surface of the fourth inclined surface 226. After pressing, the fourth tightening piece 242 of the fourth tightening part 240 is uniformly moved toward the center direction.

The third tightening unit 230 is divided by radial slit holes 234 on the outer circumferential surface of the third tightening piece 232 so that the end of the one side reinforcing bar 10 inserted therein can be tightened. The first inclined surface is formed on the outer circumferential surface of the third tightening piece 232.

The fourth tightening part 240 is disposed to face the third tightening part 230 while the fourth tightening piece 242 is disposed in the radial slit hole 244 so that the end of the inserted other reinforcing bar 20 can be tightened. It is divided and formed, the second inclined surface is formed on the outer peripheral surface of the fourth tightening piece (242).

Here, the slit hole 234 of the third tightening unit 230 and the slit hole 244 of the fourth tightening unit 240 are more than half of the length of the third and fourth tightening units 230 and 240. It is preferably formed. Furthermore, when the third and fourth tightening pieces 232 and 242 are pinched or opened to the end of one reinforcing bar 10 and the end of the other reinforcing bar 20 starting from both slit holes 234 and 244. The torsionally elastic function is exerted at the curved inner ends of the 234 and 244, which means that the third and fourth fasteners 230 and 240 are heat-treated in an integral state, and the slit holes 234 and 244 are formed. This is because it is formed up to a position close to the rear surfaces of the 3 and 4 fasteners 230 and 240.

Referring to FIG. 10, an inclined surface is formed on an outer circumferential surface of the opposite end portions of the third and fourth fasteners 230 and 240 to allow the third elastic member 150 to be inserted into the inclined surface, thereby allowing the third elastic member 250 to be inserted. ) Can be used to secure the In addition, although not shown in the drawing, the grooves of the spiral shape on the opposite inclined surfaces of the third fastening portion 230 and the fourth fastening portion 240, that is, the shape corresponding to the shape of both ends of the third elastic member 250 A groove is formed to fix the third elastic member 150 more firmly.

The third elastic member 250 is provided with both ends supported on opposing surfaces of the third tightening part 230 and the fourth tightening part 240, so that the third tightening part 230 and the fourth tightening part 240 are provided. It is a compression spring that applies elastic force in opposite directions.

That is, when the third resilient member 250 is inserted into the one-touch rebar coupler 200, for example, the third elastic member 250 may have a direction opposite to the insertion direction of the one rebar 10 in the third fastening part 230. Since the elastic force is applied toward the top, it is possible to prevent the rolling of the third fastening unit 230 as much as possible. On the contrary, when the other reinforcing bar 20 is inserted into the one-touch easy coupler 200, since the elastic force is applied to the fourth fastening part 240 in a direction opposite to the direction in which the other reinforcing bar 20 is inserted, Article 4 It is possible to prevent the jungle of the pregnant woman 240 as much as possible.

Therefore, a process of connecting both reinforcing bars 10 and 20 by the one touch method by the one-touch easy coupler 200 according to the second embodiment of the present invention is as follows.

First, the third fastening portion 230 is inserted into the third inclined surface 216 formed on the inner circumferential surface of the third coupling portion 210 to correspond to the first inclined surface, and the first formed on the inner surface of the fourth coupling portion 220. After inserting the fourth fastening part 240 to the second inclined surface corresponding to the fourth inclined surface 226, the third elastic member 250 is disposed between the third fastening part 230 and the fourth fastening part 240. In the positioned state, the third coupling part 210 and the fourth coupling part 220 are firmly fastened through the spiral parts 212 and 222.

Next, the one end of the reinforcing bar 10 is inserted into the third fastening piece 232 of the third fastening unit 230 by inserting one side of the reinforcing bar 10 in front of the third coupling portion (210). At this time, since the elastic force is applied to the third tightening part 230 in a direction opposite to the insertion direction of the one side reinforcing bar 10 by the third elastic member 250, the maximum tightening of the third tightening part 230 is prevented. While the first inclined surface of the third tightening unit 230 is pressed to maintain a close contact with the third inclined surface of the third coupling portion 210 to prevent separation of the one side reinforcing bar (10).

Next, the other reinforcing bar 20 is inserted from the rear of the fourth coupling unit 220 so that the rear end of the other reinforcing bar 20 is positioned inside the fourth fastening piece 242 of the fourth fastening unit 240. At this time, since the elastic force is applied to the fourth tightening part 240 by the third elastic member 250 in a direction opposite to the insertion direction of the other reinforcing bar 20, the push of the fourth tightening part 240 is prevented to the maximum. While the second inclined surface of the fourth fastening unit 230 is pressed to maintain a close contact with the fourth inclined surface of the fourth coupling unit 220 to prevent the separation of the other reinforcing bar (20).

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

100, 200: one-touch easy coupler 110: first coupling portion
112: spiral portion 114: chamfering face
116: first receiving space 120: second coupling portion
122: spiral portion 124: chamfering surface
126: second receiving space 128: interference member
130: first tightening unit 132: first tightening
132a: first bent portion 134: slit hole
140: second tightening unit 142: second tightening
142a: second bent portion 144: slit hole
150: first elastic member 160: second elastic member
210: third coupling portion 212: spiral portion
214: chamfered surface 216: third inclined surface
220: fourth coupling portion 222: spiral portion
224: chamfered surface 226: fourth inclined surface
230: third tightening unit 232: third tightening
234: slit hole 240: fourth tightening part
242: fourth tightening 244: slit hole
250: a third elastic member

Claims (6)

A first tightening part for tightening the rebar end of one side inserted therein;
A second fastening part for tightening the rebar end of the other side inserted therein;
First and second elastic members positioned to surround end portions of the first and second tightening portions, respectively, and an elastic force is applied in a radial direction to maintain end portions of the first and second tightening portions;
A first coupling part provided to be positioned inside the first tightening part; And
And a second coupling part which is provided to be positioned inside the second fastening part, and is coupled to the first coupling part.
The method of claim 1,
The first and second fastening part is a one-touch easy coupler, characterized in that the first and second tightening pieces radially provided with the inlet is bent outward at the end where the reinforcing bar end is inserted.
The method of claim 2,
And the first and second fastening pieces are formed integrally with the first and second fastening parts while being divided by the radial slit holes in the first and second fastening parts.
The method of claim 2,
The first and second fastening pieces are divided by radial slit holes in the first and second fastening parts, and end portions provided separately from the first and second fastening parts are rotatably connected by hinges. One touch type easy coupler.
The method of claim 1,
One-touch easy coupler, characterized in that the first and second elastic members are formed in an annular shape.
A third tightening part in which a first tightening piece is divided by a radial slit hole to tighten the reinforcing end portion of one side inserted therein, and a first inclined surface is formed on an outer circumferential surface of the first tightening piece;
A fourth tightening part in which a second tightening piece is divided by a radial slit hole so that the other end of the reinforcing bar inserted therein is tightened, and a second inclined surface is formed on an outer circumferential surface of the second tightening piece;
A third elastic member positioned between opposite ends of the third and fourth fasteners to apply elastic forces to the third and fourth fasteners in opposite directions;
A third coupling part provided to be positioned inside the third tightening part, and having a third inclined surface formed on an outer circumferential inner circumferential surface of the third tightening part so as to correspond to a first inclined surface of the third tightening part, and having a spiral formed on the inner circumferential inner circumferential surface; And
The fourth fastening portion is provided to be positioned inside, and the fourth inclined surface is formed on the outer peripheral inner circumferential surface so as to correspond to the second inclined surface of the fourth fastening portion, so that the third coupling portion and the third coupling portion can be spirally fastened to the inner circumferential outer peripheral surface. One-touch easy coupler comprising a; fourth coupling portion is formed spiral.

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