KR20180054216A - One touch steel reinforcing coupler - Google Patents

Abstract

The present invention relates to a rebar coupler capable of being inserted and separated in a one-touch type. According to the present invention, the rebar coupler comprises: a pair of cylindrical coupler bodies; a plurality of plate members which are installed while the outer circumferential surface thereof is in contact with a taper part and have a plurality of locking protrusions formed on the inner circumferential surface; a separation part coming in contact with an end part of a rebar installed in an inlet part to be pressed; a plate member coupling part, wherein the bottom of the plate member is inserted thereinto to be coupled; a fracture holder; an elastic member; a joint to connect the pair of coupler bodies with each other with vertical symmetry; a support ring to space the inner space of the plate member at a predetermined interval; and a push ring installed to be in contact with the top of the plate member and having a hollow formed to allow the rebar to be inserted thereinto. As such, a rebar is able to be easily inserted and fixed by the plate member and is able to easily separate the inserted rebar by the push ring.

Description

{ONE TOUCH STEEL REINFORCING COUPLER}

More particularly, the present invention relates to a one-touch type reinforced coupler capable of inserting and separating reinforcing bars by one-touch operation.

Reinforced concrete is widely used in civil construction sites such as building construction sites and bridge construction sites, especially when constructing reinforced concrete structures. However, since reinforcing bars are manufactured and circulated in a limited range and in a certain standard, it is not possible to select a reinforcing bar suitable for the conditions of the building. Accordingly, when a reinforcing bar longer than the length of the standardized reinforcing bars is required, or when a different type of reinforcing bars is to be used, a reinforcing coupler for connecting the reinforcing bars to the reinforcing bars is used.

It is important that the reinforcing couplers are generally long and firmly fixed so that the heavy reinforcing bars do not bend or fall out. Accordingly, the conventional reinforcing coupler is designed such that once the reinforcing bar is inserted, the inserted reinforcing bar is not separated from the reinforcing bar coupler before the reinforcing coupler is cut or broken.

However, in such a conventional reinforcing coupler, once inserted reinforcing bars are not separated again, it is difficult to separate and reuse inserted reinforcing bars as necessary. As a result, a large number of reinforcing couplers are required at the construction site, and there is a problem that cost and resource consumption are large in order to cover the need.

Accordingly, it is necessary to develop a technology for reusable reinforcing couplers that can insert and separate reinforcing bars.

(Patent Document 0001) Korean Patent No. 1602399 'One-touch Ferrule Coupler'

SUMMARY OF THE INVENTION An object of the present invention is to provide a reinforcing coupler capable of inserting and separating reinforcing bars.

Another object of the present invention is to provide a reinforcing coupler having a simple fastening method.

It is still another object of the present invention to provide a reinforcing coupler capable of stably fixing an inserted reinforcing bar.

It is still another object of the present invention to provide a reinforcing coupler capable of preventing the loss of the retaining ring and separating the reinforcing bars by the retaining ring.

In order to accomplish the above object, the present invention provides a one-touch insertion and detachable reinforcing coupler having a hollow shape with an open upper end and a lower end, A pair of cylindrical coupler bodies each having an inlet portion formed at an upper portion thereof and a tapered portion having a reverse tapered shape having an inner diameter increasing from an upper portion to a lower portion and having lower ends abutting each other and vertically symmetrically coupled to each other, A plurality of fixtures formed on an inner circumferential surface of which a plurality of locking protrusions are formed; a separator disposed below the fixture and being pressed against the end of the reinforcing bar inserted into the inlet; A single piece fastening part arranged at regular intervals and inserted and joined with a lower end of the body, And a breaking portion which is cut when the separating portion is pressed downward by the end portion of the reinforcing bar, and an elastic member provided below the breaking holder and providing an elastic force in a vertical direction, A coupling body inserted into a lower end of the pair of coupler bodies to connect the pair of coupler bodies vertically and symmetrically with each other, and being engaged with locking protrusions of the coupling body in a ring shape, And a pressing ring which is installed in the inside of the inlet and has a lower end abutted against the upper end of the mold and has a hollow for insertion of the reinforcing bar and has a lower outer diameter larger than an upper outer diameter, When the knitted fabric is pressed downward, the knitted fabric holding the reinforcing bar is moved downward, And the reinforcing bars can be separated as the space is spaced apart.

Wherein the coupling body is formed with a male thread on an outer peripheral surface thereof and the pair of coupler bodies are formed on a lower end side inner peripheral surface of the coupling body where the coupling body is inserted, And is coupled via a female thread.

The seam body is formed with a partition wall portion formed across the inner space at an intermediate portion and a tool insertion hole having a polygonal shape into which a tool is inserted at a central portion of the partition wall portion.

And a cover provided on the upper portion of the inlet portion and having an inner diameter corresponding to an outer diameter of the inlet portion and surrounding an outer circumferential surface of the inlet portion and having an inner diameter corresponding to an upper outer diameter of the upper ring, , Thereby preventing the pushing ring from being released to the outside of the inlet portion.

According to the present invention, the following effects can be expected.

1) It is possible to provide a reinforcing coupler which can easily insert and fix a reinforcing bar by a fitting, and can easily separate the reinforcing bars inserted by the pushing ring.

2) A pair of coupler bodies can be easily fastened through one joint.

3) A reinforcing coupler capable of stably fixing a reinforcing bar by supporting the end portion of the inserted reinforcing bar on the partition wall portion can be provided.

4) By forming the cover, it is possible to prevent loss of the pushing ring and facilitate separation of the reinforcing bars from the reinforcing coupler.

1 and 2 are sectional views of a reinforcing coupler according to the present invention.
3 is an exploded perspective view of a reinforcing coupler according to the present invention;
Fig. 4 is a perspective view showing a state before a reinforcing bar according to the present invention is inserted into a body. Fig.
5 is a perspective view of a reinforcement according to the present invention after being inserted into a body.
6 is a perspective view showing a fracture holder according to the present invention.
7 is a cross-sectional view illustrating the coupling between the coupling body and the coupler body of the present invention.
8 is a sectional view showing a state before the pushing ring according to the present invention is pressed.
9 is a sectional view showing a state after the push ring according to the present invention is pushed.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described below, but may be embodied in various different forms, and these embodiments are not intended to be exhaustive or to limit the scope of the present invention to the precise form disclosed, It is provided to inform the person completely of the scope of the invention. And the terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. The singular forms herein include plural forms unless the context clearly dictates otherwise.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Brief Description of Drawings FIG. 1 is a block diagram of a computer system according to an embodiment of the present invention; FIG. 2 is a block diagram of a computer system according to an embodiment of the present invention; FIG.

1 and 2 are sectional views of a one-touch insertion and detachable reinforcing coupler 100 according to the present invention. 3 is an exploded perspective view of a one-touch insertion and detachable reinforcing coupler 100 according to the present invention.

Hereinafter, the present invention will be described with reference to Figs.

The present invention relates to a reinforced concrete coupler (100) capable of one-touch insertion and detachment, in which a reinforcing coupler (100) can be easily inserted into a reinforcing coupler (100) 100).

To this end, the reinforcing coupler 100 capable of one-touch insertion and detachment of the present invention comprises a pair of coupler bodies 110, a fixture 120 capable of holding a reinforcing bar, and a fixture 120, A joint 150 which allows the pair of coupler bodies 110 to be vertically and symmetrically connected to each other, a joint body 120 And a support ring 160 and a pushing ring 170 that are engaged with the locking protrusion 121 of the body 120 to provide an internal space of the body 120. [

Hereinafter, each configuration according to the present invention will be described in detail.

First, the coupler body 110 will be described. Hereinafter, one coupler body 110 will be described, and the same coupler bodies 110 are formed as a pair.

The coupler body 110 is hollow and has an upper and a lower end, and an outer shape of the coupler body 110 is formed into a cylindrical shape. The coupler body 110 may include an inlet portion 111 and a tapered portion 112.

The inlet portion 111 is formed to extend upward from the upper end of the coupler body 110 and has an outer diameter and an inner diameter that are larger than the inner diameter of the upper end of the coupler body 110 and smaller than the outer diameter of the upper end of the coupler body 110. The inlet portion 111 is formed hollow so that a reinforcing bar is inserted into the coupler body 110 or an inserted reinforcing bar is released to the outside. A press ring 170 is installed in the hollow inlet 111.

The tapered portion 112 is formed on the upper portion of the coupler body 110. The tapered portion 112 having an inverted tapered shape with an inner diameter increasing from the upper end of the coupler body 110 downward is formed. In other words, the tapered portion 112 may be formed from the upper end of the coupler body 110 and formed only on a portion of the upper portion or the upper portion of the coupler body 110. The tapered portion 112 may be provided with a body 120.

Next, the plate 120 will be described. The braid 120 is for gripping a reinforcing bar inserted into the coupler body 110, and a reinforcing bar can be inserted into the braid 120. The fixture 120 is installed inside each of the pair of coupler bodies 110 and the outer peripheral surface of the fixture 120 is disposed in contact with the tapered portion 112. A locking protrusion 121 may be formed on an inner circumferential surface of the body 120 so that a bar of a reinforcing bar can be hooked.

The locking protrusions 121 may be formed on the inner circumferential surface of the body 120 and may be spaced a predetermined distance along the axial direction of the coupler body 110. In addition, the locking protrusion 121 may be formed with an inclined surface in a direction in which the reinforcing bar is inserted so that the reinforcing bar can be easily inserted, and a sawing shape in which the reinforcing bar is formed so that the reinforcing bar is not removed in the opposite direction have.

4 and 5 are perspective views showing the state before and after the reinforcing bars are inserted into the joint body 120. [

As shown in FIGS. 4 and 5, a reinforcing bar can be inserted into the interior of the bracket 120, and the reinforcing bars can be gripped by the bracket 120 while the reinforcing bars are hooked and supported by the locking projections 121 .

In addition, the braid 120 according to the present invention may be formed such that the lower end thereof is fitted into the fracture holder 130. 4 and FIG. 5, the lower end of the body 120 can be engaged with the tab fastening part 132 formed in the fracture holder 130. As shown in FIG. Since the lower end of the body 120 is coupled to the knit fastening part 132, the internal spaces can be kept spaced apart from each other by a predetermined distance, and the reinforcing bars can be easily inserted into the internal space having a predetermined distance.

Referring to FIG. 1, a support ring 160 is provided inside the bracket 120 to further separate the inner space of the bracket 120, thereby providing an inner space for facilitating insertion of the reinforcing bars.

Next, the break holder 130 will be described in detail. The fracture holder 130 may be made of synthetic resin such as plastic. The fracture holder 130 is located in the hollow inside the coupler body 110 and below the joint body 120. The rupture holder 130 functions to fix the fixture 120 at a predetermined interval so as to provide a space inside the fixture 120 when the reinforcement is not inserted into the fixture 120, The reinforcing bars can be inserted into the lower end of the coupler body 110 while being broken by the reinforcing bars.

6 is a perspective view showing a fracture holder 130 according to the present invention. Hereinafter, the fracture holder 130 will be described in detail with reference to FIG.

The fracture holder 130 according to the present invention may include a separator 131, a fastener coupling part 132, and a rupturing part 133. The separating part 131 is pressed against the end of the reinforcing bar inserted into the coupler body 110 and the untwisted coupling part 132 is arranged at a predetermined interval along the circumferential direction of the separating part 131 And the breaking part 133 connects the separating part 131 and the piece fastening part 132. When the pressing part is pressed downward by the end of the reinforcing bar to be inserted, . Hereinafter, each configuration of the fracture holder 130 will be described in more detail.

First, the separating portion 131 may be formed in a flat disc shape and is pressed by the end portion of the inserted reinforcing bar.

The knit fastening portion 132 is a portion that fixes and supports the lower end of the fixture 120 and is formed with an arc-shaped groove 134 to which the lower end of the fixture 120 is fitted while being fitted. Also, a plurality of the knitting fastening portions 132 may be formed, and the individual knitting fastening portions 132 may be formed separately from each other. Further, when the breaking portion 133 is cut while the reinforcing bars are inserted, the knitting fastening portions 132 may be formed to be completely separated from each other. The knitted fastening part 132 may be formed to correspond to the lower end shape of the body 120. The lower surface of the tongue-and-groove fastening portion 132 can be urged upward by being brought into contact with the elastic member 140 located below the fracture holder 130 and pressed toward the upper end of the coupler body 110.

The breaking portion 133 is a portion that connects the separating portion 131 and the piece fastening portion 132. When the separating portion 131 is not pressed downward by the reinforcing end portion, The joining portion 132 can be stably retained and can be formed to have a shape and a thickness that can be easily cut when the separating portion 131 is pressed by the end of the reinforcing bar while the reinforcing bars are inserted. The breaking portion 133 may be formed to be smaller than the thickness of the separating portion 131 so that cutting can be performed smoothly. More specifically, the thickness of the rupturing portion 133 may be about 20 to 70% of the thickness of the separating portion 131.

According to one embodiment of the present invention, the fracture holder 130 is provided with a plurality of auxiliary portions 133 extending radially from the center of the upper surface or the lower surface of the separating portion 131, And the breaking groove 136 may extend to the breaking portion 133.

The breaker holder 130 may further include a through hole 135 according to an embodiment of the present invention. The through hole 135 is a hole that can be formed at the center of the separator 131. The through hole 135 is formed so that the anti-corrosive oil can flow outside when it is taken out after it is dipped in anti-rust oil to prevent rusting of the reinforcing coupler according to the present invention.

Next, the elastic member 140 will be described with reference to Figs. The elastic member 140 is installed inside the coupler body 110 such as a spring and is disposed below the joint holder 150 and above the joint 150.

The elastic member 140 can provide an elastic force in a vertical direction. More specifically, the elastic member 140 urges the coupling member 120 and the fracture holder 130, which are located on the upper portion of the elastic member 140, toward the upper end of the coupler body 110 to be brought into close contact with each other. The upper end of the body 120 may protrude upward from the upper end of the coupler body 110 and the inner space of the body 120 may be further contracted due to the shape of the tapered portion 112. Also, when the pushing ring 170 is pushed downward, the elastic member 140 is contracted downward, and the body 120 can be slightly moved downward. The elastic member 140 may be a leaf spring or a coil spring made of steel, or a variety of high-elasticity springs may be used.

Next, the joint 150 is cylindrical, and is inserted into the pair of coupler bodies 110 at the same time to be coupled to the pair of coupler bodies 110. The upper part of the joint 150 is inserted into the lower end of one coupler body 110 of the pair of coupler bodies 110, And the lower portion of the joint 150 is inserted into the lower end of the other coupler body 110 and coupled thereto.

The outer circumferential surface of the joint 150 is formed to have a size corresponding to the inner circumferential surface of the lower end of the pair of coupler bodies 110 so that the pair of coupler bodies 110 Can be engaged by being fitted to the inner peripheral surface of the lower end of the pair of coupler bodies 110.

7 is an enlarged cross-sectional view of a coupling 150 inserted into and coupled to a pair of coupler bodies 110 according to an embodiment of the present invention.

Referring to FIG. 7, according to one embodiment of the present invention, the coupling 150 may include a male thread 153 formed on the outer circumferential surface, and a female threaded portion formed on the inner circumferential surface of the lower portion of the pair of coupler bodies 110 So that the coupling member 150 and the pair of coupler bodies 110 can be threadedly coupled with each other.

Herein, the male thread 153 refers to a thread formed on the outer circumferential surface of the joint 150, and the female thread refers to a thread formed on the lower inner circumferential surface where the joint 150 can be inserted into the lower end of the coupler body 110 .

2, the joint 150 according to an embodiment of the present invention may further include a partition wall 151 and a tool insertion hole 152. As shown in FIG.

The partition portion 151 may be formed at an intermediate portion of the seam 150 across the inner space. And a reinforcing bar may be partially inserted into the partition wall 151 to be supported. The partition wall 151 may be symmetrically formed so that the symmetrically formed partition walls 151 can support a part of the reinforcing bar by abutting the reinforcing end inserted into each of the pair of coupler bodies 110 Can play a role.

The tool insertion hole 152 is formed so as to insert the tool in a shape penetrating axially in the central portion of the partition wall portion 151. In other words, after the tool is inserted into the tool insertion hole 152, it is easier to insert the coupling 150 into the lower end of the coupler body 110 by using the tool.

1 and 2, the support ring 160, which is another constitution of the present invention, is disposed inside the body 120 in a ring shape, and the inner space of the body 120 is spaced apart by a predetermined distance . The supporting ring 160 is made of a material such as plastic that can be easily broken. When the reinforcing bar is inserted into the braid 120, the supporting ring 160 is broken so that the inner circumferential surface of the braid 120 abuts against the outer peripheral surface of the reinforcing bar. The support ring 160 may be interposed between the locking projections 121 and supported by the locking protrusions 121.

Thus, the support ring 160 serves to guide the reinforcing bars to be easily inserted into the braid 120 by providing a space inside the braid 120.

Further, the support ring 160 according to the present invention may have one or a plurality of support rings.

Next, the push ring 170, which is another constitution of the present invention, will be described. The pushing ring 170 is installed inside the inlet 111 and the lower end of the pushing ring 170 is positioned to abut the upper end of the body 120. The presser ring 170 is formed so that the central portion thereof is hollow and the reinforcing bars can be inserted or removed. The pushing ring 170 is formed to have a larger lower outer diameter than the upper outer diameter, and the inner diameter is formed to be the same.

8 is a sectional view showing the state before the pushing ring 170 is pushed downward, and Fig. 9 is a sectional view showing the state after the pushing ring 170 is pushed downward. However, in FIGS. 8 and 9, the reinforcing bars are not shown to clearly show the structure.

The following description will be made with reference to FIG. 8 and FIG.

The pushing ring 170 according to the present invention is used for releasing the reinforcing bars inserted into the coupler body 110 to the outside. In other words, when the pushing ring 170 is pushed, the elastic member 140 also contracts downward so that the body 120 can be slightly moved downward, and the body 120, which is slightly moved downward, The inner space of the coupler body 110 corresponding to the shape of the tapered portion of the coupler body 110 is gradually spaced apart from the inner space of the coupler body 110 by a predetermined distance. The clearance provided at this time means a gap provided between the reinforcing bars and the inner peripheral surface of the plate 120, When the free space is created, the reinforcing bars can be pulled out in a direction opposite to the insertion direction.

Of course, the pushing ring 170 is manually pushed by a human or any external environment. The knob 120 which can be pushed by the pushing ring 170 protrudes further than the upper end of the coupler body 110 so that the upper end of the knob 120 is positioned inside the inlet portion 111.

The present invention may be configured to further include the cover 180 according to one embodiment. The cover 180 according to the present invention is installed on the upper portion of the inlet portion 111 and has an inner diameter corresponding to the outer diameter of the inlet portion 111 so as to surround the outer circumferential surface of the inlet portion 111, The inner circumferential surface of the upper end of the cover 180 is provided so as to abut the upper outer circumferential surface of the retaining ring 170. So that the cover 180 can prevent the pushing ring 170 from being released to the outside of the inlet portion 111. The lower portion of the pushing ring 170 is clogged with the upper portion of the cover 180 having a size corresponding to the outer diameter of the upper portion of the pushing ring 170, Therefore, it is possible to prevent the pushing ring 170 from being released to the outside.

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the claims of the invention to be described below may be better understood. It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the appended claims and their equivalents should be construed as being included within the scope of the present invention.

100: Reinforced coupler
110: Coupler body
111:
112:
120:
121: Locking projection
130:
131:
132:
133:
134: Home
135: Through hole
136: auxiliary break groove
140: elastic member
150:
151:
152: Tool insertion hole
153: male threads
160: Support ring
170:
180: cover
10: Rebar
11: node

Claims (4)

And a tapered portion having an inverted tapered shape with an inner diameter increasing from the upper end to the lower end, the hollow portion having a hollow shape with an upper end and a lower end opened, A pair of cylindrical coupler bodies which are vertically symmetrically coupled to each other at their bottom ends;
A plurality of fixtures provided on the outer circumferential surface so as to abut against the tapered portion and having a plurality of locking protrusions;
A separator disposed under the fixture and pressed against the end of the reinforcing bar inserted into the inlet, and a plurality of protrusions arranged at regular intervals along the circumferential direction at the edge of the separator, And a rupture portion which connects the rim portion of the separating portion and the tab fastening portion and is cut when the separating portion is pressed downward by the end of the reinforcing bar;
An elastic member provided below the rupture holder and providing an elastic force in a vertical direction;
A coupler inserted into a lower end of the pair of coupler bodies to connect the pair of coupler bodies vertically and symmetrically with each other;
A support ring which is held by the locking protrusion of the fixture in a ring shape so that the fixture inner space is spaced apart by a predetermined distance; And
And a pressing ring which is installed in the inside of the inlet and has a lower end abutting against the upper end of the body, a hollow formed to allow insertion of the reinforcing bar, and a lower outer diameter larger than an upper outer diameter,
The pushing ring
Wherein when the downward force is applied to the reinforcing bars, the braces holding the reinforcing bars move downward, and the reinforcing bars can be separated as the internal spaces of the braces are separated from each other. The method according to claim 1,
The joint member has a male thread formed on an outer peripheral surface thereof,
Wherein the pair of coupler bodies are joined to each other through a male screw thread formed on a lower end side inner surface of the coupler body to which the coupling body is inserted and a male thread formed on the coupling body and a female thread formed on the pair of coupler bodies. Reinforced coupler capable of inserting and separating formulas. The method according to claim 1,
Preferably,
And a tool insertion hole having a polygonal shape in which a tool is inserted into a center portion of the partition wall portion is formed so as to penetrate through the partition wall portion formed in an intermediate portion of the partition wall portion. The method according to claim 1,
And a cover installed at an upper portion of the inlet portion and having an inner diameter corresponding to an outer diameter of the inlet portion so as to surround an outer circumferential surface of the inlet portion and having an inner diameter corresponding to an upper outer diameter of the upper portion,
The cover
Wherein the pushing ring is prevented from being released to the outside of the inlet portion.

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