KR200234943Y1 - Connector easily connected for steel reinforcing - Google Patents

Abstract

The present invention relates to an easy-to-reinforced reinforcing bar joint device that can be easily constructed by one-touch work in the field when the reinforcing bar and reinforcing bars are used to construct a structure at various construction sites. , Lower support and ' 'The couplings are connected to each other with tapered surfaces to be fastened to the joints with fastening springs, or the outer springs are inserted into the magnetic grooves on the outer side of the upper and lower support pieces. Insert the rebar in both directions of the upper and lower fasteners and tighten the upper and lower fasteners while tightening the upper and lower fasteners and tighten the joints of the rebars and improve the allowable stress of the rebar. I can make it " The upper support piece (1) (1 ') and the lower support piece (2) (2') having the engaging jaw (1a) (1a ') (2a) (2a') are formed as a portion to be coupled with the type connector (3). ' 'A coupling connector 3 is coupled to the tapered surface and the locking jaws 1a, 1a', 2a and 2a 'of the upper and lower support pieces 1, 1', 2 and 2 '. Supported by the fastening spring (4) on the outer circumference of the 'type connector (3) is coupled to the upper and lower support pieces (1) (1') (2) (2 ') of the two-way inner reinforcement hole (5) (5 The upper and lower fasteners (10) having an inner spring (6) (6 ') to secure the insertion space of the reinforcing bars (8) and (8') and a protrusion (9) (9 ') formed on the outer circumferential edge thereof. (10 ') A fastening reinforcing bar joint device, characterized in that about one-third of the threads (10a) (10a') to be coupled to the joint of the reinforcing bar (8) (8 ') in the field.

Description

Connector easily connected for steel reinforcing {Connector easily connected for steel reinforcing}

The present invention relates to an easy-to-reinforced reinforcing bar joint device that can be easily constructed by one-touch work in the field when the reinforcing bar and reinforcing bars are used to construct a structure at various construction sites. , Lower support and ' 'The couplings are connected to each other with tapered surfaces to be fastened to the joints with fastening springs, or the outer springs are inserted into the magnetic grooves on the outer side of the upper and lower support pieces. Insert the rebar in both directions of the upper and lower fasteners and tighten the upper and lower fasteners while tightening the joints of the rebars and improve the allowable stress of the rebar. It can be done.

Conventional reinforcing bars include butt joints, welded joints, and threaded joints. Butt joints are used to calculate the wrap size per rebar by multiplying the permissible stress by the surface area of the reinforcing bars, or by overlapping a certain length (tension 40d, compression 25d). And connecting the reinforcing bar and reinforcing bar using a ties or creep, but the butt joint has a problem in the tensile and compression quality due to the joint neglecting the stress of the reinforcing bar.

The welding joint mainly uses electric resistance welding or gas pressure welding. At the time of working, at least 15-20cm2 of work length is required. Around the welded part of the reinforcing bar, there is a problem that the strength is sharply lowered, the construction cost is increased and the work efficiency is lowered due to the influence of welding heat during welding.

There are two types of threaded joints: mechanical threaded joints and screw tightening using pads. Mechanical threaded joints process the thread on the surface of the rebar, so the cross-sectional area of the rebar is reduced and the strength decreases. Since it is impossible to assemble on-site processing because the screws are transferred to the work shop and processed individually, and there is a separate transportation cost due to the transfer, and the joints and the length of the reinforcing bars are not accurate, the work is impossible. Concrete) and welding network has a problem that is difficult to apply.

Screw tightening using pad is formed in the shape of reinforcing bar inside the pad, and the screw is machined on the surface and tightened using nuts. It has the advantage of allowing some processing errors and field work compared to mechanical screw joints. In order to tighten, a certain length of space is required between reinforcing bar and pad, and it is vulnerable to stress change because it is not fixed or tight when stress is applied after tightening, and support stress of reinforcing bar joint is supported by shear stress of reinforcing bar of spiral reinforcement. Since the spiral protrusion is not precise, there is a problem of weakening partially due to contact between the protrusion and the pad.

In addition, in the case of building structures with bridges and vibrations, the initial resistance stress of the reinforcing bars is slow due to the flow of the joints, and cracks occur. There was a problem that reached easily.

Therefore, the present invention was devised to solve the conventional problems as described above. The joint of the reinforcing bars can be easily and conveniently fastened in the field, improving the binding force, and increasing the allowable stress of the joints of the reinforcing bars. The purpose of the present invention is to provide a reinforcing bar connection device that can minimize and reduce the amount of rebar used.

In order to provide a reinforcing bar connection device as described above, 'Connect the type connector with tapered surface, and the upper and lower support pieces 'The type connector is fastened with a fastening spring, or an external spring is inserted and coupled to the outer magnetic groove of the upper and lower support pieces, and an inner spring or a sponge is secured to the inner side to secure the insertion space of the rebar. Insert the rebar in both directions of the upper and lower fasteners, and tighten the upper and lower fasteners to fasten the joints of the rebars while screwing about 1/3 of the thread with the lower fasteners. As a structure in which a protrusion is formed to improve the binding force, it is possible to provide a reinforcing bar joint device that can easily increase the allowable stress of the reinforcing bar joint and be fastened.

1 (A) (B) is a perspective view of the overall structure separated according to an embodiment of the present invention

2 (A) (B) is a fastening cross-sectional structure diagram according to an embodiment of the present invention

3 is a use state according to an embodiment of the present invention

4 is a use state according to another embodiment of the present invention

<Description of the symbols for the main parts of the drawings>

(1) (1 ') upper support piece (1a) (1a') (2a) (2a ') locking jaw

(2) (2 ') lower support piece (3)' 'Type connector

(4) Tightening spring (5) (5 ') Rebar insertion hole

(6) (6 ') inner spring (7) (7') sponge

(8) (8 ') rebar (9) (9') protruding

(10) (10 ') Upper and lower fasteners (10a) (10a') threads

(11) (11 ') Magnetic Groove (12) (12') Outer Spring

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 (A) (B) is an overall structural separation perspective view according to an embodiment of the present invention showing the shape of each component, Figure 2 (A) (B) is a fastening cross section according to an embodiment of the present invention As a structural diagram showing a cross-sectional structure of the reinforcing bar coupling device, Figures 3 and 4 is a state diagram showing the use state according to one embodiment of the present invention and another embodiment showing the state in which the deformed bar is fastened.

' 'Upper support piece 1' 1 '1' and 'lower support piece 2' (2 ') formed with engaging jaws 1a, 1a', 2a and 2a 'as a portion to be joined to the' type connector 3 '. ' 'A coupling connector 3 is coupled to the tapered surface and the locking jaws 1a, 1a', 2a and 2a 'of the upper and lower support pieces 1, 1', 2 and 2 '. Supported by the fastening spring (4) on the outer circumference of the 'type connector (3) is coupled to the upper and lower support pieces (1) (1') (2) (2 ') of the two-way inner reinforcement hole (5) (5 ') To secure the insertion space of reinforcing bars 8, 8' with inner springs 6, 6 'or sponges 7, 7', and protrude 9, 9 'on its outer periphery. The upper and lower fasteners (10, 10 ') formed by coupling about 1/3 of the thread (10a) (10a') is a structure that can be connected to the joints of the reinforcement (8) (8 ') in the field. .

Nodes 8a of reinforcing bars 8 and 8 'by forming the upper and lower jaws of the multistage jaws formed inward of the upper and lower support pieces 1, 1', 2 and 2 '. (8a ') shape can be firmly tightened without distinction.

In addition, the upper support piece (1) (1 ') and the lower support piece (2) (2') 'A coupler 3 is coupled to the tapered surface and the outer springs 12, 12 in the outer magnetic grooves 11, 11' of the upper and lower support pieces 1, 1 ', 2, 2'. ', Inserting and joining, the inner spring (6) (6') or sponge (7) (7 ') to secure the insertion space of the reinforcing bars (8) (8') and the protrusions (9) The upper and lower fasteners 10 and 10 'are inserted into the upper and lower bidirectional bars 8 and 8' while the upper and lower fasteners 10 and 10 'are formed. 10 ') It is a structure that allows the joint of the reinforcing bars 8 and 8' to be fastened in the field by coupling about 1/3 of the threads 10a and 10a '.

In this way, in order to facilitate on-site assembly and fastening of the joints of reinforcing bars (8) and (8 ') at the construction site of the building structure, the joints (8a) and (8a') protrude in a zigzag manner. The upper and lower support pieces 1 and 1 'and the lower support piece 2' and 2 'can be used in common by using the deformed reinforcing bars 8 and 8' which have a slight curvature due to the case and the joint. ' 'At the tapered surface as a type connector (3), The upper and lower support pieces (1) (1 ') (2) (supported by a fastening spring (4) on the outer periphery engaging jaw (1a) (1a') (2a) (2a ') of the' shaped connector (3) The insertion space of the reinforcing bars 8, 8 'is interchanged with the inner springs 6, 6' or the sponges 7, 7 'in the bidirectional inner reinforcing hole 5, 5' of 2 '). To ensure that The tapered surface is treated by joining the type connector 3 and the upper and lower support pieces 1, 1 ', 2, and 2' to insert reinforcing bars 8 and 8 'in both directions. The upper and lower support pieces (1) (1 ') (2) (2') can be improved when the part is tightened by the inner spring (6) (6 ') or the sponge (7) (7'). To secure the inner space of the reinforcement (8) (8 ') to facilitate the insertion.

The inner springs 6 and 6 'are installed at the inlet side of the upper and lower support pieces 1, 1', 2 and 2 ', and instead of the inner springs 6 and 6'. The insertion space of the reinforcing bars 8 and 8 'may be secured by inserting sponges 7 and 7' into the inlet side of the upper and lower support pieces 1, 1 ', 2 and 2'. It is.

1 / of the upper and lower fasteners 10, 10 'and 10a and 10a' on the outside of the upper and lower support pieces 1, 1 ', 2 and 2' coupled as described above. By screwing about 3 degrees, the joint reinforcing bars (8) and (8 ') are inserted into the insertion holes (5) and (5') in both directions at the site, and the threads (10a) and (10a ') that are not fastened are simply tightened. The outer periphery of the upper and lower fasteners 10, 10 'is formed with a protrusion (9) (9') to fasten the joints of the reinforcing bars (8) and (8 ') and to cast concrete. It is projected and installed in order to strengthen the binding force. When fastening the threads 10a and 10a 'of the upper and lower fasteners 10 and 10' at the site, the upper and lower support pieces 1 and 1 '( 2) The outside of the reinforcing hole (5) (5 ') of the (2') and the inside of the upper and lower fasteners (10) (10 ') are in contact with each other in a table surface and the upper and lower support pieces (1) (1 ') (2) (2') multi-stage jaws formed on the inside are processed so that they do not coincide with each other, The upper and lower support pieces (1) (1 ') (2) (2') combined with the 'shaped connector 3' are tapered and coupled with the bars 8a and 8a of the reinforcing bars 8 and 8 '. ') Is constant or zigzag protruding, and after joining the deformed reinforcing bars (8) (8') with slight curvature, they are firmly tightened with resistance to tensile and compressive forces transmitted from the outside. It is to let.

Reinforcing bar joint device of the present invention is put into the field in the factory, screwed about 1/3 of the upper and lower fasteners (10) (10 ') thread (10a) (10a') in the factory, the field worker is building structure Reinforcing bars (5) (5 ') of reinforcing bar joints in the reinforcing bar of the bar (8a) (8a) of the reinforcing bar (8) (8') is uniform or zigzag and Even if it has a slight curvature, it is inserted in both directions and only the unfastened portions of the upper and lower fasteners 10, 10 'threads 10a, 10a' are screwed into the reinforcing bars 8, 8 'of the joint. It is firmly fastened.

In case of sponge (7) (7 ') at the time of tightening, secure the insertion space of reinforcing bar (8) (8') at the inlet side of upper and lower support pieces (1) (1 ') (2) (2') Then pushed along with the reinforcing bars (8) (8 ') It is squeezed to the outer periphery of the reinforcing bars (8) (8 ') at the' type connector (3) 'and the inner springs (6) and (6') are upper and lower support pieces (1) (1 ') (2) (2'). And is pressed between the reinforcing bar (8) (8 ').

If the simple operation of the reinforcing bar joint device of the present invention described above, the reinforcing bars (5) of the upper and lower fasteners (10, 10 ') of the reinforcing bars (8) and (8') in both directions of the reinforcing bars Insert the reinforcing bars (8) and (8 ') into (5') and screw only the thread (10a) (10a ') of the unthreaded parts of the upper and lower fasteners (10) and (10'). Will be completed.

In addition, as shown in Figure 2 the upper and lower support pieces (1) (1 ') (2) (2') is' In the outer part joined by the 'shaped connector 3', the outer springs 12 and 12 'are inserted into the magnetic grooves 11 and 11', and the upper and lower support pieces 1, 1 ', 2' ( 2 ') inserts the inner springs 6 and 6' to secure the inner space when the reinforcing bars 8 and 8 'are inserted into the bi-directional reinforcing holes 5 and 5'. It is made.

The inner spring 6, 6 'is the inlet side of the upper and lower support pieces 1, 1', 2, 2 'or' It is possible to use the position compatible with the 'type connector (3) side and use the sponge (7) (7') instead of the inner spring (6) (6 ') installed on the inlet side of the reinforcing bar (8) (8'). You can also secure insertion space.

And the shape, structure and operation of the upper and lower fasteners (10, 10 ') is formed in the outer periphery as the protrusions (9) (9') and the thread (10a) (10a ') is formed In this case, the binding force is improved when concrete is poured, and the thread (10a) (10a ') is screwed in the field work to complete the fastening.

The present invention is not limited to the above-described specific preferred embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Therefore, the present invention is not affected by the shape of the reinforcing bar, and it is not necessary to cut and process the joint, and the upper and lower support pieces and the inner step and the spring are in close contact with each other, thus improving the resistance stress against external stress change and The binding with concrete due to the stiffening of the sphere is strengthened, and the work can be easily and conveniently performed in the field, thereby reducing the labor.

Claims (4)

' 'Upper support piece 1' 1 '1' and 'lower support piece 2' (2 ') formed with engaging jaws 1a, 1a', 2a and 2a 'as a portion to be joined to the' type connector 3 '. ' 'A coupling connector 3 is coupled to the tapered surface and the locking jaws 1a, 1a', 2a and 2a 'of the upper and lower support pieces 1, 1', 2 and 2 '. Supported by the fastening spring (4) on the outer circumference of the 'type connector (3) is coupled to the upper and lower support pieces (1) (1') (2) (2 ') of the two-way inner reinforcement hole (5) (5 The upper and lower fasteners (10) having an inner spring (6) (6 ') to secure the insertion space of the reinforcing bars (8) and (8') and a protrusion (9) (9 ') formed on the outer circumferential edge thereof. (10 ') A fastening reinforcing bar joint device, characterized in that about one-third of the threads (10a) (10a') to be coupled to the joint of the reinforcing bar (8) (8 ') in the field. The method of claim 1 Inner reinforcing hole 5, 5 'of the upper and lower support pieces 1, 1', 2, 2 'as the sponge 7, 7' of the reinforcing bars 8, 8 '. Rebar fastening device easy to fasten, characterized in that to secure the insertion space. The method of claim 1 The upper and lower jaws of the upper and lower support pieces 1, 1 ', 2, and 2' are formed so that their upper and lower portions do not coincide with each other. 8a ') Easy reinforcing bar connecting device characterized in that it can be fastened to any shape. The method of claim 1 Easy to fasten, characterized in that the outer springs 12, 12 'is inserted into the outer magnetic grooves 11, 11' of the upper and lower support pieces 1, 1 ', 2, and 2'. One rebar joint.