KR200298940Y1 - Connector of steel reinforcing - Google Patents

Abstract

The present invention relates to a reinforcing bar connecting device for simply connecting both ends of the reinforcing bar, the plate springs 110, 210 and bent in a cylindrical shape, the pinch protrusions 122, 222 is formed on the inner circumference and tapered surface on the outer circumference A plurality of sandwiching pieces 120 and 220 are formed and coupled to the leaf springs 110 and 210, and tapered surfaces 124 of the sandwiching pieces 120 and 220 are formed on an inner circumference thereof. Different tapered surfaces 134 and 234 corresponding to 224 are formed and screwed together at the outer circumference of the leaf springs 110 and 210 and the pincer pieces 120 and 220, and the leaf springs 110 and 210. And the sleeve pieces 120 and 220 to push inwards so that the sandwich pieces 120 and 220 firmly fix the reinforcing bars 140 and 240, and the reinforcing bar joints. By providing a reinforcing bar joint device, characterized in that formed in the center consisting of the stopper 112, 212 to limit the insertion position of the reinforcing bars 140, 240, the number of parts is easy to produce, easy to combine and It is easy, and the insertion position of the reinforcing bar is controlled so the precision and prevent the reduction in strength occurs, to a robust to combine.

Description

Rebar Fittings {Connector of steel reinforcing}

The present invention relates to a reinforcing bar connecting device for connecting the reinforcing bar, and more specifically, a plurality of circumferentially tapered pieces are installed at both ends of the leaf spring, and the reinforcing bar is inserted between the plate spring and the sandwich piece, Screw a pair of sleeves with tapered surfaces in the outer periphery of the convenience, but form a stopper in the center to limit the reinforcement position, so that the clamping piece is pushed inward to secure the reinforcing bars, as well as to the stopper. The present invention relates to a reinforcing bar joint device, which allows the reinforcing bar to be accurately positioned in the center thereof.

In order to connect reinforcing bars for use in concrete structures in various construction sites, in the past, reinforcing bars were bundled and fixed with wires 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, a reinforcing bar connection device for easily connecting the reinforcing bar by means other than wire has been developed in the related art, and an example thereof will be described below.

Figure 1a is a perspective view showing an embodiment of a conventional reinforcing bar connection device, Figure 1b is a cross-sectional view showing an example of the use of the reinforcing bar connection device.

Conventional reinforcing bar joints are assembled in a cylindrical shape and the outer periphery is formed with a circular ring (4), both ends are formed with a screw thread (5), the inner surface of the node 6 of the bar (6) of the reinforcing bar (1) (1`) 7) and a semicircle (2) (2 ') set having a partition (8) partitioning the inside, and the semi-circle (2) ( 2 '), which consists of a set of nuts (3) and 3' that are tightened and integrally coupled to each other, so that nuts 3 and 3 'are respectively inserted into the outer circumference of the reinforcing bars 1 and 1'. In this state, the semicircular bodies 2 and 2 'are covered with the reinforcing bars 1 and 1' and then the nuts 3 and 3 'are tightened to thereby join the bars 1 and 1'.

However, in the conventional reinforcing bar joint as described above, when the inner circumference of the molded semi-circular body (2) (2`) does not coincide with the outer circumference of the reinforcing bar (1) (1`), In order for the node 6 of the reinforcing bar 1 to be inserted into the nodular groove 7, the reinforcing bar 1 and 1 must be cut to a very accurate dimension. ) (1`) is not cut to the correct dimensions, the reinforcing bars (1) (1`) will not be inserted into the bulkhead (8) because of the bar (6) and the groove (7) The gap between them weakens and causes damage.

And, another embodiment of the conventional reinforcing bar connection device will be described below.

Figure 2a is a perspective view showing another embodiment of a conventional reinforcing bar joint, Figure 2b is a cross-sectional view showing an example of the use of the reinforcing bar joint.

The reinforcing bar coupling device is provided with a spring support portion 11 in the center and formed with a guide 10 formed with a thread on the outer circumference, a spring 20 inserted into the guide 10 in the circumference, and pieces to form a spherical shape when assembled. Rebar fixing member 30 is formed on the inner circumferential surface and a rebar fixing piece 30 having a spring catching portion 32 formed so as to be mounted on the tip of the spring 20, and the guide 10. A thread is formed on the inner circumference of the opposing portion so that the rebar fixing piece 30 coupled to the outer circumference is coupled to the spring 20, and the cap 40 is formed on the opposite inner circumference.

Looking at the joint structure using the reinforcing bar coupling device configured as described above, the spring 20 is inserted into the guide 10, the spring engaging portion 32 of the rebar fixing piece 30 is engaged with the end of the spring (20) Position the rebar fixing piece 30 so as to cover the cover, and then cover the cap 40 thereon, assemble the screw 40 by screwing the cap 40 to the guide 10, and then reinforcing the bar 50 into the cap 40. When pushed in, the rebar fixing piece 30 is pushed inward, and a gap is generated, and the reinforcing bar 50 is inserted into the rebar fixing piece 30, and afterwards, when the worker stops pushing the rebar 50, the spring 20. By the elastic force of the rebar fixing piece 30 is pushed outward again to support the rebar (50).

However, such a conventional reinforcing bar coupling device is not only cumbersome to manufacture a large number of parts, but also increases the manufacturing cost according to a number of manufacturing processes, the rebar fixing piece 30 formed into a plurality of pieces of the spring 20 and the spring Since it is supported only by the locking portion 32, the rebar fixing piece 30 is easily separated at the time of assembly with the cap 40, and thus takes a long time, and the rebar fixing piece 30 is formed in a spherical shape so as to have a cap 40. There is a problem that the strength of the coupling portion is weakened because it flows easily inside, there is no means to limit the insertion position of the reinforcement 50, there is a problem that the rigidity of the coupling portion is weakened because the rebar 50 is inserted biased to one side there was. In addition, even when the rebar 50 is inserted to be biased to one side and the rebar 50 is pulled out, when the rebar 50 is pulled, the support strength of the rebar fixing piece 30 becomes larger due to the elastic force and the pulling force of the spring 20. Since the 50 does not fall out, there was a problem that the separation of the reinforcing bar 50 and the joint is impossible.

An object of the present invention for solving the problems as described above is to install a plurality of tapered pieces of the outer periphery tapered at both ends of the leaf spring, and insert the reinforcing bar between the plate spring and the pincer pieces, from the outer periphery of the narrowing piece A pair of sleeves with tapered surfaces are screwed together, and a stopper for restricting the reinforcement position of the rebar is formed at the center, and the clamping piece is pushed inward to fix the reinforcement firmly. An object of the present invention is to provide a reinforcing bar connecting device for precisely centering an insertion position.

Figure 1a is a perspective view showing an embodiment of a conventional reinforcing bar joint

1B is a cross-sectional view showing an example of use of the rebar joint apparatus.

Figure 2a is a perspective view showing another embodiment of a conventional reinforcing bar joint

2B is a cross-sectional view showing an example of use of the rebar joint apparatus.

Figure 3a is an exploded perspective view showing an embodiment of the reinforcing bar joint according to the present invention

Figure 3b is an enlarged perspective view showing the structure of the leaf spring and the sandwich piece of Figure 3a

Figure 4 is a perspective view showing an example of using the reinforcing bar joint of Figure 3a

Fig. 5A is a cross-sectional view showing a state before fastening of the rebar joint shown in Fig. 3A.

FIG. 5B is a cross-sectional view taken along the line A-A of FIG. 5A

5C is a cross-sectional view showing a state after the fastening of the rebar joint shown in FIG. 3A;

FIG. 5D is a cross-sectional view taken along the line B-B in FIG. 5C

6 is a perspective view showing a state after fastening when the rebar insertion state is different;

Figure 7a is an exploded perspective view showing another embodiment of the reinforcing bar joint according to the present invention

Fig. 7B is an enlarged perspective view showing the structure of the leaf spring and the sandwich piece of Fig. 7A.

FIG. 8 is a perspective view showing an example of using the reinforcing bar connector of FIG. 7A

Fig. 9A is a cross-sectional view showing a state before fastening of the rebar joint shown in Fig. 7A.

FIG. 9B is a cross-sectional view taken along the line C-C in FIG. 9A

9C is a cross-sectional view showing a state after the fastening of the rebar joint shown in FIG. 7A.

FIG. 9D is a cross-sectional view taken along the line D-D of FIG. 9C

10 is a perspective view showing a state after fastening when the rebar insertion state is changed;

* Description of the symbols for the main parts of the drawings *

110, 210: leaf spring 112, 212: stopper

114, 214: incision 116, 216: latch

120, 220: Nymphs 122, 222: Nymph protrusions

124, 224: Taper side 126, 226: Hook

130, 230: sleeve 134, 234: tapered surface

136, 236: protrusion

The configuration of the present invention for achieving the above object will be described with reference to the accompanying drawings.

3a to 6 is a view showing an embodiment of the reinforcing bar joint according to the present invention, Figure 7a to 10 is a view showing another embodiment of the reinforcing bar joint according to the present invention.

The reinforcing bar coupling device according to the present invention is a plate spring (110) (210) bent in a cylindrical shape, the pinching protrusions 122, 222 is formed on the inner circumference and tapered surface (124, 224) is formed on the outer circumference A plurality of clamping pieces 120 and 220 coupled to the springs 110 and 210 and other tapered surfaces 134 corresponding to the taper surfaces 124 and 224 of the clamping pieces 120 and 220 on the inner circumference thereof. 234 is formed and screwed into each other at the outer circumference of the leaf springs 110 and 210 and the pincer pieces 120 and 220, the leaf springs 110 and 210 and the pinch pieces 120 and 220 are inward. Sleeve 130 (230) to push the pinch 120 (220) to firmly secure the reinforcing bars 140, 240, and is formed in the center of the reinforcing bar is formed reinforcing bars (140, 240) Consists of a stopper (112) (212) for limiting the insertion position of the.

On the other hand, in the present invention, the pinching protrusions 122 and 222 are formed to be inclined only in the reinforcing bar insertion direction in order to firmly fix the reinforcing bars 140 and 240.

In addition, the sleeves 130 and 230 may be two pairs or three pairs, and in the case of the two sleeves 130, one leaf spring 110 is connected to the coupling portion. In addition, the stopper 112 is integrally formed on the leaf spring 110, and in the case of the three-piece sleeve 230, the stopper 212 is disposed at the center of the sleeve 230b positioned at the center. Protruding integrally with the 230b and allows the plurality of leaf springs 210 to be positioned on both sides of the stopper 212.

And, the coupling structure of the gripping piece (120) 220 and the leaf spring (110) (210) can be implemented in a number of ways if the person in charge, the present invention is symmetrical on both sides of the leaf spring (110) (210) After forming the cut lines 114 and 214 at a plurality of positions, the outside of the cut lines 114 and 214 is press-fitted inward to form hooks 116 and 216, and the pinching pieces 120 and 220 are formed. The hooks 126 and 226 are press-fitted into the incision lines 114 and 214 at the ends of the hooks 116 and 216, and the hook holes 126 and 226 are cut out 114. (214) When pushed inside, the ends of the hook holes 126 and 226 are not caught by the hook holes 116 and 216, and the hook holes 126 and 226 are locked by the hook holes 116 and 216. Since the fluid is movable in the sandwich piece 120, 220 can be opened and closed.

In addition, a plurality of axial protrusions 136 and 236 are formed on the outer circumference of the sleeve 130 and 230 so as to secure the fastening with the concrete.

An embodiment of the present invention having such a configuration will be described below by dividing the case into two pairs of sleeves and one pair of three sleeves.

Figure 3a is an exploded perspective view showing an embodiment of the reinforcing bar joint according to the present invention, Figure 3b is an enlarged perspective view showing the structure of the leaf spring and the pinching piece of Figure 3a, Figure 4 is an example of using the reinforcing bar connecting device of Figure 3a 5A to 5D are sectional views showing before and after fastening of the reinforcing bar connecting apparatus shown in FIG. 3A, and FIG. 6 is a sectional view showing after fastening when the rebar insertion state is changed.

One embodiment of the reinforcing bar joint device according to the present invention is a leaf spring 112 is formed as shown in Figure 3a to Figure 4 and symmetrical fasteners 116 are formed on both sides and the leaf spring Hanger 126 is inserted into the engaging hole 116 formed on both sides of the 110 is formed and the gripping piece 120 is installed on both sides of the leaf spring 110, and the two pieces in a pair and screwed together Is formed of a sleeve 130, the stopper 112 in the above configuration is formed by cutting both ends of the central portion of the leaf spring 110 and then bent inward, in addition to the stopper 112 in a number of ways if the relevant Since it can be formed, the installation structure of the stopper 112 does not limit the gist of the present application.

As described above, the rebar joint device having two sleeves 130 is mainly used at the horizontal joint. Referring to the embodiment, the sleeve 130 is inserted into the outer circumference of the rebar 140 as shown in FIGS. 5A to 5D. When the rebar 140 is fastened to the inner circumference of the sandwich plate 120 by fastening the sandwich piece 120 to the leaf spring 110, the rebar 140 is inserted only to the center of the leaf spring 110 by the stopper 112 and no longer. Is not inserted, and when the reinforcing bar 140 is inserted into the clamping piece 120 in this way, and the sleeve 130 is fastened, the tapered surface 134 of the sleeve 130 is shown in FIG. 5C at the position shown in FIG. 5A. While holding the tapered surface 124 of the clamping piece 120 to a position, the clamping piece 120 is pushed inward as shown in FIG. 5D in the state of FIG. 5B, and the clamping protrusion 122 of the clamping piece 120 pushed inwards. ) Will be firmly fixed to the rebar 140.

In addition, according to the present invention as described above, since the pinch protrusion 122 asks the reinforcing bars 140 regardless of the direction of the ribs and nodes of the reinforcing bars 140, as shown in FIGS. 5A to 5D, Even when the rebar 140 is inserted in a different direction or the direction of the rebar 140 is the same as shown in FIG. 6, the bearing force is the same, and thus, even in the case of a round bar without a node or a rib, it can be fixed.

Figure 7a is an exploded perspective view showing another embodiment of the reinforcing bar joint according to the present invention, Figure 7b is an enlarged perspective view showing the structure of the leaf spring and the pinching piece of Figure 7a, Figure 8 is an example of using the reinforcing bar joint of Figure 7a 9A and 9D are cross-sectional views showing before and after fastening of the reinforcing bar connecting apparatus shown in FIG. 7A, and FIG. 10 is a perspective view when the rebars are changed in different directions.

Another embodiment of the reinforcing bar joint device according to the present invention is a plurality of leaf springs 210 and the leaf springs 210 formed with a latch 216 on one side symmetrical with each other, as shown in Figure 7a to 10, Hanger 226 is inserted into the formed engaging hole 216 is formed, the gripping piece 220 is installed in each of the leaf spring 210, and the three pieces are formed in one set screwed together and the sleeve 230b is located in the center ) Consists of a sleeve 230 in which the stopper 212 is integrally injection molded at the center of the inner circumferential surface thereof.

As such, the rebar joint device having three sleeves 230 is mainly used for vertical joints. Looking at the embodiment, sleeves 230a positioned at both sides of the reinforcement 240 as shown in FIGS. 7A to 7B. After inserting the 230c, the clamping piece 120 is fastened to the leaf spring 110 to push the reinforcing bar 140 into the inner circumference of the clamping piece 120.

Then, when the reinforcing bar 240 is pushed into the inner circumference of the sleeve 230b located at the center in the state where the pinned piece 120, the leaf spring 110, and the sleeves 230a and 230c are inserted into the reinforcing bar 240, 240 is inserted only to the center of the sleeve 230b by the stopper 212 and is no longer inserted, and thus the sleeve 230a is positioned at the edge after contacting the rebar 140 with the stopper 212 ( When the 230c are engaged with the centrally located sleeve 230b, the leaf spring 210 is positioned in the centrally located sleeve 230b and the tapered surface 234 of the other sleeves 230a and 230c is shown in FIG. 9A. While holding the tapered surface 224 of the clamping piece 220 to the position shown in FIG. 9C, the clamping piece 220 is pushed inward, and the clamping protrusion 222 of the clamping piece 220 pushed inward is In the state of FIG. 9B, the stopper 212 is firmly fixed while pushing inwardly as shown in FIG. 9D. In integrally formed on the sleeve (230b) is not damaged even when the load of the vertical reinforcement construction (240).

As shown in FIG. 10, the ribs and nodes of the reinforcing bars 240 are positioned in the same direction because the reinforcing bars 240 are fixed regardless of the insertion direction of the reinforcing bars 240. You can also do it.

The present invention configured as described above has the effect of improving the productivity because the number of parts is small and small, and the work is improved because the reinforcing bars are firmly fixed only by inserting the reinforcing bars into the combined spring pieces and the leaf springs to combine the sleeves. The stopper is formed at the center of the leaf spring, so that the rebar is inserted exactly to the center, thereby reducing the strength due to the poor insertion position of the rebar.

In addition, since the coupling and separation of the sleeve is easy, the reinforcing bar device can be easily separated from the reinforcing bars as needed after assembly of the reinforcing bar device, thereby improving the satisfaction on use.

In addition, since the parts constituting the reinforcing bar coupling are all forged, the dimensional error of the entire reinforcing bar coupling does not occur, and manufacturing cost is low and mass production is possible.

In addition, since the size of the reinforcing bar is short, the linear connection of the reinforcing bar as well as the band reinforcement is possible effect.

Claims (6)

In the rebar joint device, Plate springs 110 and 210 that are bent in a cylindrical shape, A plurality of clamping pieces (120, 220) is formed on the inner circumference (122) (222) and the outer peripheral tapered surface (124, 224) is coupled to the leaf spring (110, 210), The other tapered surfaces 134 and 234 corresponding to the tapered surfaces 124 and 224 of the sandwich pieces 120 and 220 are formed on the inner circumference thereof to form leaf springs 110 and 210 and the sandwich pieces 120 ( While screwing each other at the outer circumference of 220, the leaf springs 110 and 210 and the pinching pieces 120 and 220 are pushed inwards so that the pinching pieces 120 and 220 firmly reinforce the reinforcing bars 140 and 240. Sleeves 130 and 230 for fixing, Reinforcing bar connection device, characterized in that formed in the center of the reinforcing bar coupling device consisting of a stopper (112) (212) for limiting the insertion position of the reinforcing bars (140, 240). The method of claim 1, wherein the clamping protrusions (122) (222) is a reinforcing bar device, characterized in that formed inclined only in the reinforcement direction. According to claim 1, The sleeve 130 is a pair of two, so that one leaf spring 110 is located in the coupling portion and the stopper 112 is integrally formed on the leaf spring 110 Rebar joint device characterized in that. According to claim 1, wherein the sleeve 230 is formed in a set of three, protruding the stopper 212 in the center of the sleeve 230b is located in the center and a plurality of plates on both sides around the stopper 212 Reinforcing bar fittings, characterized in that the spring 210 is positioned. The method of claim 1, wherein the sleeve (130) (230) outer reinforcing bars, characterized in that a plurality of axial projections (136, 236) formed. According to claim 1, After forming the incision line 114, 214 in a plurality of positions symmetrical on both sides of the leaf springs (110, 210) and press the outside of the incision line 114, 214 to the inside Hooks 126 and 226 are formed to form spheres 116 and 216, and are pressed into the incision lines 114 and 214 at the ends of the pincer pieces 120 and 220. ) And the hook piece 126, 226 is pushed into the incision line 114, 214, so that the pinch pieces 120, 220 are coupled to the leaf springs 110, 210 so as to be flowable. Rebar joint device, characterized in that.