KR102301698B1 - Connector for concrecte structure of reinforcing bar - Google Patents

Abstract

The present invention relates to a reinforcing bar connector for a concrete structure. In the present invention, a connector body (101) is provided in the reinforcing bar connector (100) of the concrete structure. First and second fixing parts (110, 120) extending in a direction away from each other are provided on both sides of the connector body (101). The first and second fixing parts (110, 120) have first and second rotating parts (210, 220) screwed in a longitudinal direction of the first and second fixing parts (110, 120) and fixing a state in which one end of first and second reinforcing bars (10, 20) inserted into first and second insertion spaces (111, 121) of the first and second fixing parts (110, 120) are inserted. The inner surfaces of the first and second insertion spaces (111, 121) are formed in shapes corresponding to the outer surfaces of one end of the first and second reinforcing bars (10, 20), respectively. A plurality of incision slits (114, 124) are formed in the first and second fixing parts (110, 120), respectively. In accordance with the present invention, in the state in which the first and second reinforcing bars are inserted into the first and second fixing parts, the first and second rotating parts are screwed respectively, and at the same time, the first and second fixing parts are pressed to bind the first and second reinforcing bars, such that one end of the reinforcing bars can be easily connected, thereby enabling a worker to work easily in a short time during a reinforcing bar connection work.

Description

Connector for concrecte structure of reinforcing bar

The present invention relates to a reinforcing bar connector for a concrete structure, and more particularly, to a reinforcing bar connector of a concrete structure configured to connect one end of the reinforcing bar to each other when reinforcing reinforcing bars in a concrete structure so that the reinforcing bar and the reinforcing bar can be firmly bound to each other. it's about

In general, in construction (civil engineering, construction, plant) sites, concrete structures are constructed by pouring concrete after processing and assembling reinforcing bars to form a skeleton.

Since the reinforcing bars are cut and supplied to a certain length (6 meters or more and 12 meters or less) at the factory, the reinforcing bars are connected to each other in the longitudinal direction according to the length of the concrete structure and used.

At this time, in order to connect the reinforcing bars, as shown in FIG. 1 , in a state where the nodes 3 protruding from the two reinforcing bars 1 and 1 ′ are overlapped with each other by a predetermined length, the binding line 5 or the like is used. The overlap joint method is used to tie two reinforcing bars (1, 1') together and connect them together.

This overlap joint method requires little construction equipment and has the advantage of very simple operation, but depending on the concrete construction condition or curing condition, the adhesion stress may be less than the allowable strength, loss occurs in the overlapping portion, and there are many thick reinforcing bars. Reinforcing bars overlap on the connecting part in the part, which may cause problems in pouring concrete.

In order to solve this problem, Republic of Korea Patent Publication No. 10-1855402 (hereinafter referred to as the cited invention) discloses a screw joint method in which the end of a reinforcing bar is pre-processed to make a thread, and a screw connection method for connecting by screwing using a coupler is disclosed. .

However, this screw joint method has the advantages of excellent construction and easy concrete pouring, but since the end of the reinforcing bar must be processed separately, there is a problem that only the reinforcing bar that has been threaded can be used. There is also the problem that it is not easy to do.

Republic of Korea Patent Publication No. 10-1855402 (registered on April 30, 2018)

The present invention was invented to improve the above problems, and the problem to be solved by the present invention is that it is easy to connect reinforcing bars, can reduce the cost of shortening the construction period, and improve the compressive force or tensile force in the longitudinal direction of the rebar. It is to provide a reinforcing bar connector of a concrete structure that can be

The technical problem of the present invention is not limited to those mentioned above, and another technical problem not mentioned will be clearly understood by those skilled in the art from the following description.

According to a reinforced connector of a concrete structure according to an embodiment of the present invention in order to achieve the above object, the connector body; a first fixture having one end connected to any one of both surfaces of the connector body, the other end extending in a direction away from the connector body, and having a first insertion space into which one end of the first reinforcing bar is inserted; a second fixture having one end connected to the other of both surfaces of the connector body, the other end extending in a direction away from the connector body, and having a second insertion space into which one end of the second reinforcing bar is inserted; a first rotary sphere installed movably in the longitudinal direction of the first fixture and screwed to the outer surface of the second fixture to fix the state in which one end of the first reinforcing bar is inserted into the first insertion space; a first rotary sphere for fixing the while being screwed to the outer surface of the first fixture; and a second rotary sphere installed movably in the longitudinal direction of the second fixture and screwed to the outer surface of the second fixture to fix the state in which one end of the second reinforcing bar is inserted into the second insertion space; and the inner surfaces of the first insertion space and the second insertion space are formed in shapes corresponding to the outer surfaces of one end of the first and second reinforcing bars, respectively, and the first and second fixtures A plurality of cut-out slits respectively extending along the longitudinal direction of the first fixture and the second fixture are formed, and the cut-out slit is formed to have one side open toward the other ends of the first fixture and the second fixture. characterized.

The other ends of the first fixture and the second fixture are tapered in a direction away from the connector body, respectively.

The inner diameters of the first and second rotary spheres are characterized in that they have the same inner diameter as the outer diameters of one end of the first and second fixtures.

The first and the second rotating member is characterized in that the pressing in a direction in which the inner diameter of the first and second fasteners decreases as moving from one end to the other end of the first and second fasteners, respectively.

Inlet edges of the first insertion space and the second insertion space into which the first and second reinforcing bars are respectively inserted are formed to be rounded to guide the insertion of the first and second reinforcing bars.

A through hole is formed to pass through the center of the connector body, and a stepped portion supporting one end of the first reinforcing bar and the second reinforcing bar is formed concavely on both sides of the connector body around the through hole, respectively, so that the first reinforcing bar is formed. And it is characterized in that the insertion of the second reinforcing bar is limited.

A plurality of anti-skid grooves are concavely formed on the outer surfaces of the first and second rotary spheres in the longitudinal direction of the first and second rotary spheres.

A stopper is positioned between the connector body and the first rotating sphere and between the connector body and the second rotating sphere to limit the movement of the first rotating sphere and the second rotating sphere.

The stopper is formed to have one side open, and an inner diameter is formed in a ring shape to correspond to the outer surfaces of one end of the first fixture and the second fixture, respectively.

A plurality of elastic members providing elastic force toward one end of the first and second reinforcing bars are provided on inner surfaces of the first and second insertion spaces adjacent to one end of the first and second fixtures, respectively. characterized in that it is provided.

The details of other embodiments are included in the detailed description and drawings.

According to the reinforcing bar connector of a concrete structure according to an embodiment of the present invention, in a state in which the first and second reinforcing bars are inserted into the first and second fixtures in which the incision slit is formed, the first and second rotary spheres are As the first and second fixtures are pressed at the same time as they are screwed together, the first and second reinforcing bars are bound together. Therefore, since one end of the reinforcing bar can be easily connected, the worker can easily work in a short time when connecting the reinforcing bars. The construction period is also reduced, and the structural strength of the reinforcing bar connection is strong.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a schematic view showing a structure for connecting two reinforcing bars using a binding line.
Figure 2 is a perspective view showing the configuration of the reinforcing bar connector of the concrete structure according to an embodiment of the present invention.
Figure 3 is an exploded perspective view showing the configuration of the reinforcing bar connector of the concrete structure according to an embodiment of the present invention.
4 and 5 are operation state diagrams illustrating a process in which a first reinforcing bar and a second reinforcing bar are respectively coupled to the reinforcing bar connector of a concrete structure according to an embodiment of the present invention.
6 is a front view illustrating a state in which a first reinforcing bar is fixed to a reinforcing bar connector of a concrete structure according to an embodiment of the present invention.
7 is a cross-sectional view showing the configuration of a reinforcing bar connector of a concrete structure according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings to the extent that those of ordinary skill in the art to which the present invention pertains can easily practice the present invention.

In describing the embodiments, descriptions of technical contents that are well known in the technical field to which the present invention pertains and are not directly related to the present invention will be omitted. This is to more clearly convey the gist of the present invention without obscuring the gist of the present invention by omitting unnecessary description.

For the same reason, some components are exaggerated, omitted, or schematically illustrated in the accompanying drawings. In addition, the size of each component does not fully reflect the actual size. In each figure, the same or corresponding elements are assigned the same reference numerals.

2 is a perspective view showing the configuration of a reinforcing bar connector of a concrete structure according to an embodiment of the present invention, and FIG. 3 is an exploded perspective view showing the configuration of a reinforcing bar connector of a concrete structure according to an embodiment of the present invention. , FIGS. 4 and 5 are operation state diagrams showing a process in which a first reinforcing bar and a second reinforcing bar are coupled to a reinforcing bar connector of a concrete structure according to an embodiment of the present invention, respectively.

2 and 3, the connector body 101 is provided in the reinforced connector 100 of the concrete structure. In the present embodiment, the connector body 101 has a circular plate shape having an approximately predetermined thickness, but is not necessarily limited thereto. For example, the connector body 101 may be formed in a polygonal plate shape such as a hexagon or an octagon.

4 and 5 , a through hole 103 is formed in the center of the connector body 101 . The through hole 103 is formed through the center of the connector body 101 .

Step portions 105 are concavely formed on both sides of the connector body 101 with the through hole 103 as a center. The step portion 105 is preferably formed to be smaller than the diameters of one end of the first reinforcing bar 10 and one end of the second reinforcing bar 20 . The step portion 105 serves to support one end of the first reinforcing bar 10 and one end of the second reinforcing bar 20 . This is to limit the insertion of the first reinforcing bar 10 and the second reinforcing bar 20 .

Meanwhile, as shown in FIGS. 2 and 3 , a first fixture 110 is provided on any one surface of both surfaces of the connector body 101 . One end of the first fixture 110 is connected to the connector body 101 , and the other end is extended by a predetermined length in a direction away from the connector body 101 . In this embodiment, the first fixture 110 is formed in a substantially hollow cylindrical shape. As shown in Figure 4, the length (L) of the first fixture 110 may be formed to be longer than the length (l) of the first rotary sphere 210 to be described below. This is to prevent the first rotary member 210 from being easily separated from the first fixture 110 in the process of moving along the longitudinal direction of the first fixture 110 .

A first insertion space 111 is formed inside the first fixture 110 . The first insertion space 111 is a portion into which one end of the first reinforcing bar 10 is inserted. The inner surface of the first insertion space 111 is formed in a shape corresponding to the outer surface of one end of the first reinforcing bar 10 . That is, on the inner surface of the first insertion space 111 , the first insertion groove 112 into which the node 12 formed on the outer surface of the first reinforcing bar 10 is inserted may be formed. This is to prevent the first reinforcing bar 10 from arbitrarily flowing by inserting the node 12 of the first reinforcing bar 10 into the first insertion groove 112 .

2 and 3 , a cutting slit 114 is formed in the first fixture 110 . The cutting slit 114 is formed to extend along the longitudinal direction of the first fixture 110 . As shown in FIG. 6 , a plurality of cutting slits 114 may be formed radially around the center of the first fixture 110 . The cutting slit 114 is formed so that one side is opened toward the other end of the first fixture 110 . This is to facilitate insertion of the first reinforcing bar 10 while the width of the incision slit 114 is widened when one end of the first reinforcing bar 10 is inserted into the first insertion space 111 . am.

A screw thread 116 is formed on the outer surface of the first fixture 110 . The screw thread 116 is for screwing with the first rotary sphere 210 to be described below. The screw thread 116 may be formed on the entire outer surface of the first fixture 110 . The screw thread 116 may be spirally formed from one end of the first fixture 110 toward the other end. This is to allow the first rotary sphere 210 to be described below to be moved while being screwed with the first fixture 110 .

In the present embodiment, the first fixture 110 is formed in a substantially cylindrical shape, but is not necessarily limited thereto. For example, the other end of the first fixture 110 may be tapered in a direction away from the connector body 101 . In this case, the diameter of the other end of the first fixture 110 may be slightly larger than the diameter of the first reinforcing bar 10 . This is to allow one end of the first reinforcing bar 10 to be smoothly inserted.

On the other hand, the second fixture 120 is provided on the other side of both surfaces of the connector body 101 . One end of the second fixture 120 is connected to the connector body 101 , and the other end is extended by a predetermined length in a direction away from the connector body 101 . In this embodiment, the second fixture 120 has the same shape as the first fixture 110 , and is formed in a substantially hollow cylindrical shape. As shown in Figure 4, the length (L) of the second fixture 120 may be formed to be longer than the length (l) of the second rotary sphere 220 to be described below. This is to prevent the second rotary member 220 from being easily separated from the second fixture 120 in the process of moving along the longitudinal direction of the first fixture 110 .

A second insertion space 121 is formed inside the second fixture 120 . The second insertion space 121 is a portion into which one end of the second reinforcing bar 20 is inserted. The inner surface of the second insertion space 121 is formed in a shape corresponding to the outer surface of one end of the second reinforcing bar 20 . That is, on the inner surface of the second insertion space 121 , a second insertion groove 122 into which the node 22 formed on the outer surface of the second reinforcing bar 20 is inserted may be formed. This is to prevent the second reinforcing bar 20 from arbitrarily flowing by inserting the node 22 of the second reinforcing bar 20 into the second insertion groove 122 .

As shown in FIGS. 2 and 3 , a cutting slit 124 is formed in the second fixture 120 . The cutting slit 124 is formed to extend along the longitudinal direction of the second fixture 120 . As shown in FIG. 6 , a plurality of incision slits 124 may be radially formed around the center of the second fixture 120 . The cutting slit 124 is formed so that one side is opened toward the other end of the second fixture 120 . This is to facilitate insertion of the second reinforcing bar 20 while the width of the incision slit 124 is widened when one end of the second reinforcing bar 20 is inserted into the second insertion space 121 . am.

A screw thread 126 is formed on the outer surface of the second fixture 120 . The screw thread 126 is for screwing with the second rotary sphere 220 to be described below. The screw thread 126 may be formed on the entire outer surface of the second fixture 120 . The screw thread 126 may be spirally formed from one end of the second fixture 120 toward the other end. This is to allow the second rotary sphere 220 to be described below to be moved while being screwed with the second fixture 120 .

In the present embodiment, the second fixture 120 is formed in a substantially cylindrical shape, but is not limited thereto. For example, the other end of the second fixture 120 may be tapered in a direction away from the connector body 101 . In this case, the diameter of the other end of the second fixture 120 may be slightly larger than the diameter of the second reinforcing bar 20 . This is to allow one end of the second reinforcing bar 20 to be smoothly inserted.

In this embodiment, the inlet edges of the first and second insertion spaces 111 and 121 into which the first and second reinforcing bars 10 and 20 are respectively inserted may be formed to be rounded. This is to guide the insertion of the first reinforcing bar 10 and the second reinforcing bar 20 .

On the other hand, as shown in Figures 2 and 3, the reinforcing bar connector 100 of the concrete structure is provided with a first rotary sphere 210. The first rotary sphere 210 is movably installed along the longitudinal direction of the first fixture 110 . The first rotary sphere 210 may be formed in a substantially cylindrical shape.

The first rotary sphere 210 serves to fix the state in which one end of the first reinforcing bar 10 is inserted into the first insertion space 111 while being screwed to the outer surface of the first fixing sphere 110 . . That is, the first rotary sphere 210 prevents the width of the incision slit 114 of the first fixture 110 from being arbitrarily widened by an external force, and at the same time as shown in FIG. 5 , the first fixture ( It also serves to prevent one end of the first reinforcing bar 10 from being separated in a direction opposite to the insertion direction by pressing in the direction in which the diameter of the first reinforcing bar 10 becomes smaller.

A first screw thread 212 may be formed on the inner surface of the first rotary hole 210 . The first screw thread 212 is formed in a shape corresponding to the screw thread 116 of the first fixture 110 . The first screw thread 212 is for screwing the first rotary member 210 with the screw thread 116 of the first fixture 110 .

2 and 3 , an anti-skid groove 214 is concavely formed on the outer surface of the first rotary sphere 210 . The anti-slip groove 214 is formed to extend long in the longitudinal direction of the first rotary sphere 210 . As shown in FIG. 6 , a plurality of anti-slip grooves 214 may be formed radially around the center of the first rotating sphere 210 when the first rotating sphere 210 is viewed from the front. have. The anti-slip groove 214 is to prevent the operator from sliding when rotating the first rotary tool 210 using a work tool such as a wrench or a spanner or when gripping by hand.

On the other hand, as shown in Figures 2 and 3, the reinforcing bar connector 100 of the concrete structure is provided with a second rotary sphere 220. The second rotary sphere 220 is installed to be movable along the longitudinal direction of the second fixture 120 . The second rotating sphere 220 may have the same shape as the first rotating sphere 210, and may be formed in a substantially cylindrical shape.

The second rotary sphere 220 serves to fix the state in which one end of the second reinforcing bar 20 is inserted into the second insertion space 121 while being screwed to the outer surface of the second fixture 120 . . That is, the second rotary sphere 220 prevents the width of the incision slit 124 of the second fixture 120 from being arbitrarily widened by an external force, and at the same time as shown in FIG. 5 , the second fixture ( 120) also serves to prevent one end of the second reinforcing bar 20 from being separated in a direction opposite to the insertion direction by pressing in the direction in which the diameter decreases.

A second screw thread 222 may be formed on the inner surface of the second rotary hole 220 . The second screw thread 222 is formed in a shape corresponding to the screw thread 126 of the second fixture 120 . The second screw thread 222 is for screwing the second rotary member 220 with the screw thread 126 of the second fixture 120 .

As shown in FIGS. 2 and 3 , an anti-skid groove 224 is concavely formed on the outer surface of the second rotating sphere 220 . Since the non-slip groove 224 has the same shape and role as the non-slip groove 224 of the first rotary sphere 210, a detailed description thereof will be omitted.

Meanwhile, as shown in FIG. 7 , a stopper 300 is positioned between the connector body 101 and the first rotation hole 210 and between the connector body 101 and the second rotation hole 220 . can be The stopper 300 serves to limit the movement of the first rotating sphere 210 and the second rotating sphere 220 . That is, the stopper 300 is released from the state in which the first rotating sphere 210 and the second rotating sphere 220 are screwed to the first and second fasteners 110 and 120 to move to the original position. to prevent it from becoming

In this embodiment, the stopper 300 is formed to have one side open, and an inner diameter may be formed in a ring shape to correspond to the outer surface of one end of the first fixture 110 and the second fixture 120, respectively. have. In this embodiment, the stopper 300 may be formed of a synthetic resin material or a rubber material. This is to be easily installed on the outer surfaces of one end of the first fixture 110 and the second fixture 120 while the stopper 300 is elastically deformed.

On the other hand, as shown in FIG. 7 , on the inner surfaces of the first insertion space 111 and the second insertion space 121 adjacent to one end of the first fixture 110 and the second fixture 120, respectively. A plurality of elastic members 400 may be provided. The elastic member 400 serves to prevent the first and second reinforcing bars 10 and 20 from flowing in the first fixture 110 and the second fixture 120 .

First, when describing the elastic member 400 provided in the first insertion space 111 , one end of the elastic member 400 provided in the first insertion space 111 is disposed in the first insertion space 111 . ) is inserted and fixed in the first insertion slit 118 formed on the inner surface, and the other end extends toward the first reinforcing bar 10 in a cantilever shape. This is to be easily inserted while overcoming the elastic force of the elastic member 400 when one end of the first reinforcing bar 10 is inserted into the first insertion space 111 .

At this time, the other end of the elastic member 400 may be formed by bending toward between the nodes 12 of one end of the first reinforcing bar 10 . This is to prevent the first reinforcing bar 10 from being arbitrarily separated from the first fixture 110 by the elastic member 400 being hung between the nodes 12 of the first reinforcing bar 10 . .

One end of the elastic member 400 provided in the elastic member 400 provided in the second insertion space 121 is inserted and fixed in the second insertion slit 128 formed on the inner surface of the second insertion space 121, , the other end extends toward the second reinforcing bar 20 in a cantilever shape. Since the elastic member 400 provided in the second insertion space 121 has the same shape and role as the elastic member 400 provided in the first insertion space 111, a detailed description thereof will be omitted below.

Next, a process in which the first rebar and the second reinforcing bar are coupled to the reinforcing bar connector of the concrete structure will be described with reference to FIGS. 4 and 5 .

First, as shown in FIG. 4 , one end of the first reinforcing bar 10 and the second reinforcing bar 20 is attached to the first insertion space 111 and the second fixture 120 of the first fixture 110 , respectively. ) is positioned toward the second insertion space 121 .

At this time, the first rotating sphere 210 and the second rotating sphere 220 are respectively positioned at one end of the first fixture 110 and one end of the second fixture 120 , respectively.

In this state, when one end of the first reinforcing bar 10 and the second reinforcing bar 20 is inserted, respectively, the cut slit 114 of the first fixture 110 and the cut slit of the second fixture 120 ( 124), the first reinforcing bar 10 and the second reinforcing bar 20 are easily inserted.

If the first reinforcing bar 10 and the second reinforcing bar 20 are continuously inserted into the first insertion space 111 and the second insertion space 121, one end of the first reinforcing bar 10 and the second reinforcing bar 20 are inserted. One end of the two reinforcing bars 20 is supported by the stepped portion 105 of the connector body 101 to prevent further insertion.

Next, the operator rotates the first rotating sphere 210 and the second rotating sphere 220 using a work tool or the like. At this time, the first rotating sphere 210 and the second rotating sphere 220 are screwed to the first and second fasteners 110 and 120 in a direction away from the connector body 101, that is, arrow will move in the A direction.

In this case, as shown in FIG. 5 , the first reinforcing bar 10 and the first reinforcing bar 10 and the first reinforcing bar 10 and the second reinforcing bar 10 are pressed in the direction in which the diameters of the first fixture 110 and the second fixture 120 are reduced, that is, in the direction of the arrow B. The two reinforcing bars 20 are bound to the first fixture 110 and the second fixture 120 , respectively.

In this way, since one end of the first reinforcing bar 10 and the second reinforcing bar 20 can be easily connected using the reinforcing bar connector 100 of the concrete structure, the worker can easily work in a short time when connecting the reinforcing bars can do. In particular, even an unskilled person can easily connect rebar, and labor and construction costs are reduced, the construction period for constructing a building is also reduced, and the structural strength of the rebar connection part is strong.

On the other hand, in the present specification and drawings, preferred embodiments of the present invention have been disclosed, and although specific terms are used, these are only used in a general sense to easily explain the technical contents of the present invention and help the understanding of the present invention, It is not intended to limit the scope of the invention. It will be apparent to those of ordinary skill in the art to which the present invention pertains that other modifications based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

100: reinforcing bar connector of concrete structure
101: connector body 103: through hole
105: step part
110: first fixture 111: first insertion space
112: first insertion groove 114: incision slit
116: thread
120: second fixture 121: second insertion space
122: second insertion groove 124: incision slit
126: thread
210: first rotation sphere 212: first thread
214: non-slip groove
220: second rotation sphere 222: second thread
224: non-slip groove
300: stopper
400: elastic member

Claims (10)

connector body;
a first fixture having one end connected to any one of both surfaces of the connector body, the other end extending in a direction away from the connector body, and having a first insertion space into which one end of the first reinforcing bar is inserted;
a second fixture having one end connected to the other of both surfaces of the connector body, the other end extending in a direction away from the connector body, and having a second insertion space into which one end of the second reinforcing bar is inserted;
a first rotary sphere installed movably in the longitudinal direction of the first fixture and screwed to the outer surface of the first fixture to fix the state in which one end of the first reinforcing bar is inserted into the first insertion space; and
A second rotary sphere that is installed movably in the longitudinal direction of the second fixture and is screwed to the outer surface of the second fixture to fix the state in which one end of the second reinforcing bar is inserted into the second insertion space; consists of,
The inner surfaces of the first insertion space and the second insertion space are formed in shapes corresponding to the outer surfaces of one end of the first and second reinforcing bars, respectively,
A plurality of incision slits respectively extending along the longitudinal direction of the first fixture and the second fixture are formed in the first fixture and the second fixture,
The incision slit is formed to have one side open toward the other ends of the first fixture and the second fixture,
A plurality of elastic members providing elastic force toward one end of the first and second reinforcing bars are provided on inner surfaces of the first insertion space and the second insertion space adjacent to one end of the first fixture and the second fixture, respectively. Reinforced connector of a concrete structure, characterized in that provided.
The method of claim 1,
The other ends of the first fixture and the second fixture are reinforced connectors of a concrete structure, characterized in that tapering in a direction away from the connector body, respectively.
3. The method of claim 2,
The inner diameters of the first and second rotary spheres have the same inner diameter as the outer diameter of one end of the first and second fasteners.
4. The method of claim 3,
Reinforcement connector of a concrete structure, characterized in that the first and the second rotating spheres are pressed in a direction in which the inner diameter of the first and second fasteners decreases as they move from one end of the first and the second fastener to the other end, respectively. .
5. The method of claim 4,
Concrete, characterized in that the inlet edges of the first insertion space and the second insertion space into which the first and second reinforcing bars are respectively inserted are rounded to guide the insertion of the first and second reinforcing bars Rebar connectors in structures.
6. The method of claim 5,
A through hole is formed through the center of the connector body,
On both sides of the connector body with the through hole as the center, step portions at which one end of the first and second reinforcing bars are supported are concavely formed to limit the insertion of the first and second reinforcing bars. reinforced connectors of concrete structures.
7. The method of claim 6,
A reinforcing bar connector of a concrete structure, characterized in that a plurality of anti-skid grooves are concavely formed on the outer surfaces of the first and second rotation spheres in the longitudinal direction of the first and second rotation spheres.
8. The method of claim 7,
A stopper is positioned between the connector body and the first rotating sphere and between the connector body and the second rotating sphere to limit the movement of the first and second rotating spheres. .
9. The method of claim 8,
The stopper is
A reinforcing bar connector of a concrete structure, characterized in that one side is formed to be open, and the inner diameter is formed in a ring shape to correspond to the outer surfaces of one end of the first fixture and the second fixture, respectively.
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