KR102281267B1 - Rebar fixture and rebar coupler comprising the same - Google Patents

Abstract

Disclosed is a reinforcing bar fastener (replacement of the pyeonche) having a structure that is easy to manufacture and is easy to arrange inside the coupler body.
A reinforcing bar fastener according to an embodiment includes a body surrounding the perimeter of the reinforcing bar; Wrinkles formed on the inner surface of the body; and a plurality of cutouts alternately formed at the upper end of the body and the lower end of the body along the circumference of the body.

Description

Rebar fasteners and a coupler for reinforcing bars including the same {REBAR FIXTURE AND REBAR COUPLER COMPRISING THE SAME}

The present disclosure (Disclosure) relates to a coupler for reinforcing bars used for the purpose of connecting two reinforcing bars. In addition, it is related to the pyeonche, which is an accessory of the coupler for reinforcing bars.

Korean Patent Publication No. 10-2001399 discloses an example of a 'coupler for rebar'. The rebar coupler is used to connect two reinforcing bars.

Referring to the above-mentioned publication, in general, the conventional coupler for reinforcing bars is inserted into the coupler body and includes a plurality of pyeonche for pressing the outer surface of the reinforcing bars. On the other hand, when assembling the conventional coupler for reinforcing bars, it is necessary to separately arrange a plurality of pyeonche along the inner circumference of the coupler body, which is a very cumbersome operation.

US 20-0486476 Y1 (2018.05.23. Announcement) US 10-2018993 B1 (2019.09.05. Announcement)

Compared to the conventional pyeonche of the coupler for reinforcing bars, it is easy to manufacture, and to provide a reinforcing bar fastener (replacement of the pyeonche) having a structure that is easy to arrange inside the coupler body.

In addition, it is to provide a coupler for reinforcing bars having an uncomplicated structure and easy to manufacture and assemble.

A reinforcing bar fastener according to an embodiment includes a body surrounding the perimeter of the reinforcing bar; Wrinkles formed on the inner surface of the body; and a plurality of cutouts alternately formed at the upper end of the body and the lower end of the body along the circumference of the body.

In addition, the body may include a first part having a hollow truncated cone shape, and a second part having a cylindrical shape extending below the first part.

A coupler for reinforcing bars according to an embodiment is a connector, a pair of springs symmetrically disposed with the connector therebetween, and a pair of reinforcing bars according to an embodiment symmetrically disposed with the pair of springs therebetween a fastening assembly having a sphere; a first coupler body having an inner space whose diameter increases in a direction away from the reinforcing bar inlet and the reinforcing bar inlet, and surrounding one side of the tightening structure; and a second coupler body having an inner space with a diameter increasing in a direction away from the reinforcing bar inlet and the reinforcing bar inlet, surrounding the other side of the tightening structure, and coupled to the first coupler body.

In addition, each of the pair of springs may include a base and a plurality of leaves LEAF provided at regular intervals along the circumference of the base.

In addition, the connector may include a cylinder and a plurality of supporting elements provided at regular intervals along the inner circumference of the cylinder to support the spring.

Unlike the pyeonche mentioned in the background art, the reinforcing bar fastener according to the embodiment is configured to be inserted as a whole into the inside of the coupler body, and is less likely to deviate from the original position in the assembly process. In addition, the reinforcing bar fastener according to the embodiment can be manufactured by rolling a rectangular plate in which a plurality of cutouts are formed.

The coupler for reinforcing bars according to the embodiment is easy to manufacture and assemble.

1 is a perspective view of a reinforcing bar fastener according to an embodiment.
Figure 2 is an example of manufacturing a reinforcement fastener according to the embodiment.
Figure 3 is an exploded perspective view of the coupler for reinforcing bars according to the embodiment.
4 is a cross-sectional view of a coupler for reinforcing bars according to an embodiment.
5 is an exploded perspective view of a coupler for reinforcing bars according to another embodiment.
6 is a cross-sectional view of a coupler for reinforcing bars according to another embodiment.
7 is a perspective view and an exploded perspective view of a coupler for reinforcing bars according to another embodiment.

With reference to the accompanying drawings, a reinforcing bar fastener according to an embodiment and a coupler for reinforcing bar according to various embodiments will be described in detail.

1 is a perspective view of a reinforcing bar fastener 100 according to an embodiment.

Referring to FIG. 1 , the reinforcing bar fastener 100 according to the embodiment includes a body 110 , a wrinkle part 120 , and a plurality of cutouts 130 , 130 ′, 130 ″.

The body 110 may be in the form of a hollow truncated cone in which the thickness of the wall becomes thicker as it goes downward, and as another example, as shown in the drawing, the first part in the form of a hollow truncated cone in which the thickness of the wall becomes thicker toward the bottom, as shown in the figure. It may be composed of a 112 and a second part 114 in the form of a cylinder extending below the first part 112 .

A wrinkle portion 116 is formed on the inner surface of the body 110 . The wrinkle part 116 has a shape that is continuously arranged with the valley and the crest along the height direction of the body 110 . As shown in Fig. 2 (a), the valley and the crest may be formed in a horizontal direction, and as shown in Fig. 2 (b), the valley and the crest may be formed in an oblique direction.

A plurality of cutouts 130, 130', 130" are alternately formed at the top and bottom of the body 110 along the circumference of the body 110. The number of cutouts 130 is not limited, but the body Considering the size of 110, it is preferable that the number is 10 or less. The cutout 130 is not limited to a specific shape. As an example, as shown in the drawing, the cutout 130 is smaller than the length. It may have a rectangular shape with a narrow width.

The plurality of cutouts 130 , 130 ′, 130 ″ allows the body 110 to be easily opened or contracted when an external force of a predetermined size or more is applied from the inside or outside of the body 110 .

Figure 2 is a manufacturing example of the reinforcing bar fastener 100 according to the embodiment.

Reinforcement fastener 100 according to the embodiment can be manufactured by cutting the pipe like the pyeonche mentioned in the background art.

On the other hand, as shown in FIG. 2 , the reinforcing bar fastener 100 according to the embodiment has a wrinkle portion 120 formed on one side thereof, and a plurality of cutout portions 130 , 130 ′, 130 along the longitudinal direction at both edges in the width direction. It is also possible to manufacture by forming a rectangular plate of a metal material in which ") are alternately formed. By using the above-described manufacturing method, the reinforcing bar fastener 100 according to the embodiment can be mass-produced within a short time.

3 is an exploded perspective view of the coupler 200 for reinforcing bars according to the embodiment, and FIG. 4 is a cross-sectional view of the coupler 210 for reinforcing bars according to the embodiment.

3 to 4 , the coupler 200 for reinforcing bars according to the embodiment includes a fastening assembly 210 , a first coupler body 220 , and a second coupler body 230 .

The fastening assembly 210 includes a cylindrical connector 212, a pair of springs 214 symmetrically disposed at both ends of the connector 212 with the connector 212 interposed therebetween, and a pair of springs ( 214) to be composed of reinforcing bar fasteners 100 (hereinafter referred to as 'reinforcing bar fasteners 100') according to a pair of embodiments symmetrically disposed on the outside of the pair of springs 214 with the 214 between them. can A diaphragm for partitioning an inner space may be further provided at the inner center of the connector 212 .

The first coupler body 220 includes a reinforcing bar inlet 222 and an inner space whose diameter increases in a direction away from the reinforcing bar inlet 222 , and surrounds one side of the tightening structure 210 .

The second coupler body 220 has an inner space whose diameter increases in the direction away from the reinforcing bar inlet 232 and the reinforcing bar inlet 232, and surrounds the other side of the tightening structure 210, the first coupler body 220 ) is combined with

A bolt portion 224 is formed in the first coupler body 220, a nut portion 234 is formed in the second coupler body 230, and the first coupler body 220 and the second coupler body 230 are can be screwed on.

On the other hand, a screw thread is formed on the outer surface of the connector 212 , and the first coupler body 220 and the second coupler body 230 may be configured to be screwed to the connector 212 .

On the other hand, referring to FIG. 7 , the first coupler body 220 and the second coupler body 230 may be coupled by welding.

5 is an exploded perspective view of the coupler for reinforcing bars 100 ′ according to another embodiment, and FIG. 6 is a cross-sectional view of the coupler 100 ′ for reinforcing bars according to another embodiment.

5 to 6, the spring 214' may be in the form of a leaf spring, and as an example, the base 214a having a cone shape and cut at regular intervals along the circumference, and the cut It is formed extending from the edge of each piece of the base (214a), it may be composed of a plurality of leaves (214b) inclined forward of the base (214a).

The spring 214' composed of the base 214a and the plurality of leaves 214b is easy to manufacture and assemble.

At this time, the connector 212 'is a cylinder (212a) and a plurality of supporting elements (212b) formed at regular intervals along the inner circumference of the cylinder (212a) to support the spring (214'). can The support element 212b may have a bar shape.

7 is a perspective view and an exploded perspective view of a coupler for reinforcing bars 200 ″ according to another embodiment.

7, the spring 214' is composed of a cone-shaped base 214a and a plurality of leaves 214b, and the first coupler body 220 and the second coupler body 230 are When coupled to each other through welding, as shown in the drawings, the connector 212 ″ may be configured in the form of a disk.

4 to 6, the operation of the reinforcing bar coupler 200' according to another embodiment will be described.

When the reinforcing bar is put into the reinforcing bar inlet 222 of the first coupler body 220, the spring 214' is compressed by the reinforcing bar, and the reinforcing bar fastener 110 moves in the connector 212' direction. At this time, since the inner space of the first coupler body 220 has a structure in which the diameter increases as the distance from the reinforcing bar inlet 222 increases, a plurality of cutouts 130, 130 ', 130 " of the reinforcing bar fastener 110 ) As it spreads by the pressing force of the temporary reinforcing bar, the reinforcing bar fastener 110 surrounds the outer surface of the reinforcing bar.

Subsequently, when the reinforcing bar fastener 110 moves in the opposite direction of the connector 212 ′ while the spring 214 ′ is elastically restored, the inner space of the first coupler body 220 is close to the reinforcing bar inlet 222 . Since it has a structure in which the diameter becomes smaller as it increases, the reinforcing bar fastener 110 presses the outer periphery of the reinforcing bar, and the reinforcing bar is fixed inside the first coupler body 220 .

The present disclosure may be variously modified (applied) by those of ordinary skill in the art without departing from the technical spirit.

Accordingly, the claims of the present disclosure should be broadly interpreted based on the technical idea contained throughout the 'description of the invention' and 'drawings'.

100: reinforcing bar fasteners
110: body
112: first part
114: second part
120: wrinkle part
130, 130', 130" : cutout
--
200, 200', 200" : coupler for rebar
210: fastening structure
212, 212', 212" : Connector
212a: cylinder
212b: support element
214, 214': spring
214a: base
214b : Leaf
220: first coupler body
222: rebar inlet
224: bolt part
230: second coupler body
232: rebar inlet
234: nut part

Claims (5)

delete delete A fastening assembly having a connector, a pair of springs symmetrically disposed with the connector interposed therebetween, and a pair of reinforcing bar fasteners disposed symmetrically with the pair of springs interposed therebetween;
a first coupler body having an inner space whose diameter increases in a direction away from the reinforcing bar inlet and the reinforcing bar inlet, and surrounding one side of the tightening structure; and
A second coupler body having an inner space whose diameter increases in the direction away from the reinforcing bar inlet and the reinforcing bar inlet, and surrounding the other side of the fastening structure, is coupled to the first coupler body;
Each of the pair of reinforcing bar fasteners, a body surrounding the perimeter of the reinforcing bar; Wrinkles formed on the inner surface of the body; and a plurality of cutouts alternately formed at the upper end of the body and the lower end of the body along the circumference of the body.
Each of the pair of springs, a cone (CONE)-shaped base; A coupler for reinforcement, characterized in that it consists of; a plurality of leaves (LEAF) provided at regular intervals along the edge of the base.
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