KR101506733B1 - Reinforcing rod a coupling device for hooped reinforcement - Google Patents

Reinforcing rod a coupling device for hooped reinforcement Download PDF

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Publication number
KR101506733B1
KR101506733B1 KR1020140085028A KR20140085028A KR101506733B1 KR 101506733 B1 KR101506733 B1 KR 101506733B1 KR 1020140085028 A KR1020140085028 A KR 1020140085028A KR 20140085028 A KR20140085028 A KR 20140085028A KR 101506733 B1 KR101506733 B1 KR 101506733B1
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KR
South Korea
Prior art keywords
spiral
pair
screw
reinforcing bar
reinforcing
Prior art date
Application number
KR1020140085028A
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Korean (ko)
Inventor
기언관
Original Assignee
기언관
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 기언관 filed Critical 기언관
Priority to KR1020140085028A priority Critical patent/KR101506733B1/en
Application granted granted Critical
Publication of KR101506733B1 publication Critical patent/KR101506733B1/en
Priority to CN201580017007.7A priority patent/CN106133255B/en
Priority to EP15818954.8A priority patent/EP3168386A4/en
Priority to JP2016533270A priority patent/JP6208359B2/en
Priority to PCT/KR2015/007089 priority patent/WO2016006934A1/en

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E04C5/165—Coaxial connection by means of sleeves

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The present invention relates to a reinforcement bar coupler for a spiral reinforcement. The reinforcement bar coupler for a spiral reinforcement includes: a support device receiving each part of a pair of spiral reinforcement inside the support device and screw coupling with a spiral protrusion of the spiral reinforcement to support; and a pair of restraint devices wherein a part of the restraint devices is inserted inside the support device to be screwed on both sides of the support device, and the inside is screwed with the spiral protrusion to restrain a pair of the spiral reinforcements. The support device and the restraint device simultaneously provide a tensile force and a compressive force to a pair of the spiral reinforcement, respectively.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a reinforcement rod for a helical reinforcement,

More particularly, the present invention relates to a reinforcing bar having a plurality of helical reinforcing bars for accommodating a pair of helical reinforcing bars in a gapped condition, It relates to a reinforced end connection.

The present invention relates to a reinforced steel connector for a spiral reinforcing bar, which enables a pair of reinforcing bars to be connected without rotating the reinforcing bar.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a reinforcing bar for a spiral reinforcing bar, in which durability is improved by restricting shaking and loosening due to tension and compression externally applied at the time of completion of a pair of reinforcing bars.

The present invention relates to a reinforcing bar for a spiral reinforcing bar so that it can be visually confirmed whether it is assembled by visually inspecting the inside of the reinforcing bar after the reinforcing bar is connected.

Generally, in the construction of reinforced concrete structure, the reinforcing bars used as the frame are reinforced with reinforced reinforced concrete reinforced concrete beams, which are made up of transversely protruding nodes and symmetric two- Since reinforcing bars are produced in a limited length for transportation or work convenience, most of them are connected and used. Various methods are used to connect the reinforcing bars.

The most widely used method is a lap joint method in which the end portions of two reinforcing bars are piled up and bound by a binding line. However, this method is weak in safety because the joining portion depends only on the bonding strength of the reinforcing bars, and the ends of the two reinforcing bars are heated by oxygen- In the gas pressure welding method, the joints are thermally deformed and a secondary stress is generated, so that the joints are weaker than the reinforcing bar base material. Both ends of the reinforcing bar are upsetted or the ribs and nodes are rounded by forging In the threaded joint method in which the male thread is machined by the cutting and rolling method and the female threaded joint is connected to the female threaded coupler, an external force is applied to the reinforcing bar to cause a deformation different from that of the reinforcing bar.

In the regulations on the production of reinforcing bars, in order to prevent collapse of the reinforcing concrete structures even when heat is applied, the reinforcing bars are produced in such a manner that they maintain the material properties similar to those of the concrete. However, As described above, the reinforcing bars are connected by gas pressure welding or mechanical method because reinforcing bars having a designation of D29 (diameter 29 mm) or more do not allow lap joints. In this method, It is a joint method that changes the original material properties of reinforcing steel by secondary processing and inevitably permitting this connection method has developed many reinforcing steel connectors that can be connected without changing the original material properties of the steel .

Recently, according to the necessity of the best connection method, screw thread reinforcing bars (1, 1a) having threaded screw threads (11) formed on the outer surface of the reinforcing bars have been developed and reinforcing bars Is connected to a sleeve 4z having a female threaded portion 41 to which a threaded portion 11 of the threaded portion 11 is fastened.

However, the screw thread of the female threaded portion 41 of the sleeve 4z is screwed into the threaded portion of the reinforcing bars 1 and 1a so that the screw thread 11 of the reinforcing bars 1 and 1a has a long pitch, When the two reinforcing bars 1 and 1a are fastened to the sleeve 4z by the sleeve 4z and the reinforcing rods 1 and 1a because of a large clearance between the sleeve 4z and the reinforcing rods 1 and 1a, have.

In order to solve this problem, the lock nut 5z is fastened to both ends of the sleeve 4z and the grout material is filled in the sleeve 4z to remove the clearance. However, it is troublesome to prepare and charge the grout material separately, Since the strength of the bolts is only about 10% of that of the steel bars, it can not be securely fastened. Since the pitches of the reinforcing bars 1 and 1a are long and the inclination angles of the threads are large, much force is required for fastening the locknuts 5z. There is a problem of safety in which the guide member 5z can be easily released.

In addition, since the two lock nuts 5z are not integrally joined with the sleeve 4z but are provided as separate parts, it is difficult to manage the parts and the lock nut 5z is relatively small in size, Due to the high risk of accidents, it is a reality that the need for reinforced concrete connectors that can be assembled is being reduced due to the nature of the construction site, which requires cost reduction due to safety, construction and work speed.

In order to solve this problem, Korean Utility Model No. 0409526 has a semicircular sleeve 2 which is seated to surround a threaded portion 11 as shown in FIG. 2, and a lock nut 5 is provided on the left and right sides of the semicircular sleeve 2 So that the helical reinforcing bar 1a can be connected by pressing the oblique both sides of the semicircular sleeve 2 by tightening.

However, since the conventional art also includes a large number of parts, it is inconvenient for storage and management, and the workability is deteriorated.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a spiral reinforcement structure, And a reinforcing bar for reinforcing bars.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a reinforcing steel connector for a spiral reinforcing bar capable of connecting a pair of reinforcing bars without rotating the reinforcing bar.

An object of the present invention is to provide a reinforcing bar for a spiral reinforcing bar which is improved in durability by restricting shaking and loosening due to tension and compression applied from the outside when a pair of reinforcing bar connections are completed.

An object of the present invention is to provide a reinforcing bar for a helical reinforcing bar so that the inside of the reinforcing bars can be visually confirmed by visually inspecting the reinforcing bars.

The reinforcing steel connector for a helical reinforcing bar according to the present invention comprises a support for receiving a part of each of a pair of helical reinforcing bars and for screwing and supporting the helical projections of a helical reinforcing bar, And a pair of restraining members for restraining a pair of spiral reinforcing bars by screwing the spiral protrusions with each other, wherein the supporting member and the restricting member simultaneously provide tensile force and compressive force to each of the pair of spiral reinforcing members .

And the pair of restraints have the same shape.

On both sides of the support, there is provided an inclined portion formed by inclining the male screw threadably engaged with the constraint hole, and a reinforcing bar screw having a pitch corresponding to the spiral projection is provided in the support.

Wherein a female screw having a pitch corresponding to the male screw and a projection receiving screw having a pitch corresponding to the helical projection are provided at one side of the inner side of the restraining opening and the female screw and the female screw have a pitch different from the projection receiving screw .

The male screw and the female screw are characterized by using a toothed screw.

And an inspection hole is provided at one side of the support to check the positions of the ends of the spiral reinforcement inserted into the support.

The reinforcing bar for a spiral reinforcing bar according to the present invention rotates in a state of being assembled to accommodate a pair of helical bar ends and is configured to simultaneously provide a compressive force and a tensile force to the helical bar when assembled.

In addition, the present invention enables a pair of reinforcing bars to be connected without rotating the reinforcing bars, which enhances ease of use and increases the bonding force.

Further, the present invention is advantageous in that the durability is improved because the shaking and loosening due to tension and compression applied from the outside at the time of completion of the pair of reinforcing bars is restricted.

In addition, the present invention has an advantage in that it can be visually confirmed whether the assembly is made by visually inspecting the interior after connecting the reinforcing bars.

1 is an exploded perspective view showing a structure of a conventional reinforcing bar.
FIG. 2 is a state diagram showing the construction of a reinforcing connector according to the prior art (Korean Utility Model No. 0409526). FIG.
FIG. 3 is a view showing the state of use of a reinforcing bar for a spiral reinforcing bar according to the present invention. FIG.
4 is an exploded perspective view showing the detailed structure of a reinforcing bar for a spiral reinforcing bar according to the present invention.
5 is a longitudinal sectional view showing the internal structure of a reinforcing bar for a spiral reinforcing bar according to the present invention.
6 is an exploded longitudinal sectional view showing the internal structure of a reinforcing bar for a spiral reinforcing bar according to the present invention.
7 is a longitudinal sectional view showing a state before the rebar connection in the reinforcing bar for a spiral reinforcing bar according to the present invention.
8 is a longitudinal sectional view showing a state in which a reinforcing bar is inserted into a reinforcing bar joint for a spiral reinforcing bar according to the present invention.
9 is a longitudinal sectional view showing a state before the rest of reinforcing bars are joined in a reinforcing bar for a spiral reinforcing bar according to the present invention.
10 is a longitudinal sectional view showing a state in which a pair of reinforcing bars are assembled by using a reinforcing bar for a spiral reinforcing bar according to the present invention.
11 is a longitudinal sectional view showing a state of contact with an outer surface of a reinforcing bar at the time of completion of connection of a pair of reinforcing bars using a reinforcing bar for reinforcing bars according to the present invention.

Hereinafter, the structure of a reinforcing bar for a spiral reinforcing bar according to the present invention will be described with reference to FIG.

3 shows a state of use of the reinforcing bar 100 for a spiral reinforcing bar according to the present invention.

Prior to this, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may appropriately define the concept of the term in order to describe its invention in the best possible way It should be construed as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely preferred embodiments of the present invention, and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

As shown in these drawings, the reinforcing bar 100 according to the present invention is for connecting a pair of spiral reinforcing bars F on a straight line, and is composed of three parts, So that the ends of the pair of spiral reinforcing bars F are received therein.

Then, both ends of the reinforcing bar coupling 100 in the assembled state are rotated to simultaneously provide compression and tension to the spiral projections F 'formed on the outer surface of the spiral reinforcing bar F, thereby completing the final connection.

More specifically, the reinforcing bar 100 includes a pair of spiral reinforcing rods F, a pair of spiral reinforcing rods F, a plurality of spiral reinforcing rods F, And a pair of helical reinforcing bars F are screwed and screwed into the helical projections F 'so that the helical reinforcing bars F are constrained The restraining member 140 is provided with a tensile force in the longitudinal direction F when the supporting member 120 applies a longitudinal compressive force to the spiral reinforcing bar F, Lt; / RTI >

The pair of the restraints 140 are configured to have the same shape so that the components can be easily managed and the inside thereof is perforated in the longitudinal direction to communicate with the inside of the support 120.

A test hole 122 is drilled in the center of the support 120 so that the test hole 122 can be seen inside.

Therefore, it is possible to visually confirm where the ends of the pair of spiral reinforcing bars F accommodated in the support 120 are located.

The detailed configuration of the support 120 and the restricting member 140 will be described with reference to FIGS. 4 to 6 attached hereto.

FIG. 4 is an exploded perspective view showing the detailed structure of a reinforcing bar 100 for a spiral reinforcing bar according to the present invention, and FIG. 5 is a longitudinal sectional view showing the internal construction of a reinforcing bar 100 for a reinforcing bar according to the present invention. And FIG. 6 is an exploded longitudinal sectional view showing the internal structure of the reinforcing bar 100 for a spiral reinforcing bar according to the present invention.

As shown in the drawing, the support portion 120 has a shape in which the center portion is perforated and both sides have a reduced outer diameter toward the end portion.

A reinforcing bar coupling screw 126 having a pitch and a size corresponding to the spiral protrusion F 'is provided in the support 120. The reinforcing bar coupling screw 126 is screwable with the spiral protrusion F 'of the spiral reinforcing bar F in a state in which a pair of spiral reinforcing bar F ends close to or in contact with each other are received therein.

At the center of the support 120, a check hole 122 of one phase is perforated so as to be seen through the inside of the support 120.

Both sides of the support 120 are provided with an inclined portion 124 whose outer diameter gradually decreases. The inclined portion 124 is formed with a male screw 125 so that the restricting member 140 and the supporting member 120 can be screwed to each other.

Therefore, when the support 120 and the restricting member 140 are engaged with each other and a force in a direction away from each other is applied, sufficient bond strength can be exhibited despite the inclination of the inclined portion 124.

The restricting member 140 includes a pair of identical shapes and is screwed to the spiral reinforcing bar F and the supporting bar 120 at the same time so as to prevent the pair of reinforcing bar F from moving .

More specifically, the restricting member 140 has a cylindrical shape whose interior is perforated in the longitudinal direction, and a projection receiving screw 144 is provided therein.

The projection receiving screw 144 is configured to have a pitch and a size corresponding to the spiral projections F 'of the spiral reinforcement F so as to be screwed with the spiral projections F' ). ≪ / RTI >

The projection receiving screw 144 is formed only at a predetermined ratio with respect to the length of the restricting member 140, and the female screw 142 is formed by the remaining length.

The female screw 142 is threadedly engaged with the male screw 125 formed on the inclined portion 124 and is inclined to correspond to the inclined portion 124.

That is, the restricting member 140 has an inner diameter gradually decreasing from the one end portion by a predetermined depth in the inward direction, and the female screw 142 is formed thereon.

The female screw 142 is configured to have a pitch and a size corresponding to the male screw 125, to which a toothed screw is applied, like the male screw 125.

Accordingly, the restricting member 140 can be engaged with the support 120 by screwing the female screw 142 and the male screw 125. By screwing the projection receiving screw 144 and the screw projection F ' And can be combined with the spiral reinforcing bar (F).

Hereinafter, a process of connecting a pair of reinforcing bars using the reinforcing bar 100 constructed as above will be described with reference to FIGS.

7 is a longitudinal sectional view showing a state before a reinforcing bar connection in a reinforcing bar 100 for a spiral reinforcing bar according to the present invention. The supporting bar 120 and a pair of the restrictors 140 are connected to each other as shown in FIG. And a pair of spiral reinforcing bars (F) to be connected are also prepared.

Then, as shown in FIG. 8, the reinforcing bar 100 is positioned on the outer surface of one spiral reinforcing bar F. As shown in FIG.

That is, the reinforcing bar 100 is rotated to be screwed with the screw projection F '. At this time, the screw projections F 'are sequentially engaged with the projection receiving screws 144 of the catches 140, the reinforcing screws 126 of the catches 120, and the projection receiving screws 144 of the catches 140 And is in a state as shown in Fig.

8 is a longitudinal sectional view showing a state in which a reinforcing bar is inserted into a reinforcing bar 100 for a spiral reinforcing bar according to the present invention.

Then, as shown in FIG. 9, the pair of helical reinforcing bars F are arranged to face each other on the same straight line, and then the reinforcing bar coupling 100 is rotated and transferred in the direction of the arrow.

9 is a longitudinal sectional view showing a state before the rest of the reinforcing bars are joined in the reinforcing bar 100 for a spiral reinforcing bar according to the present invention.

When the above process is completed, a pair of spiral reinforcing bars F are positioned inside the reinforcing bar 100 as shown in FIG. 10, and the end portions of the spiral reinforcing bar F are positioned through the inspection holes 122 Can be visually confirmed from the outside.

However, the reinforcing bar 100 may cause a slight movement in the pair of reinforcing bars in the state shown in FIG.

10 is a vertical sectional view showing a state where a pair of reinforcing bars are assembled by using a reinforcing bar 100 for a spiral reinforcing bar according to the present invention. The protrusion receiving screw 144 and the reinforcing bar engaging screw 126 are not in a state in which pressure is applied to the spiral protrusion F 'so that a play can be generated in the spiral reinforcing bar F. [

Accordingly, as shown by the arrows in FIG. 10, the pair of restraint holes 140 are rotated in different directions so that the projection receiving screw 144 and the reinforcing bar engagement screw 126 apply pressure to the spiral protrusion F ' You can force it.

11 is a vertical sectional view showing a state of contact between the pair of reinforcing bars at the time of completion of connection using the reinforcing bars for reinforcing bars according to the present invention. In the state shown in FIG. 10, The pair of spiral reinforcing ribs F are moved in the direction of the lower side by the interference of the screw projections F 'and the projection receiving screws 144 And receives a tensile force from the restricting member 140.

At the same time, the spiral projections F 'of the pair of spiral reinforcing bars F located inside the support 120 are subjected to a compressive force from the support 120 as the upper expansion due to the interference of the reinforcing screws 126 do.

This is because the helical projections F 'are simultaneously brought into contact with the projection receiving screw 144 and the ferrule engaging screw 126 while the retainer 120 and the restricting member 140 are screwed together, The size of the screw 144 and the reinforcing bar screw 126 is larger than the size of the spiral protrusion F '.

The scope of the present invention is not limited to the above-described embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the scope of the present invention.

For example, in the embodiment of the present invention, the female screw 142 and the male screw 125 are formed on the inclined surface of the support 120 and the restricting member 140. However, But may be formed on the inner / outer circumferential surface formed stepwise as long as it can be engaged.

11, a method of finally coupling the support 120 and the restricting member 140 in a direction away from each other has been described. However, when the support 120 and the restricting member 140 are closer to each other It is of course possible to securely connect the outer surface of each of the pair of spiral reinforcing bars F in a state in which a tensile force and a compressive force are generated at the same time.

100. Reinforced end connections 120. Supported areas
122. Inspection ball 124. Slope part
125. Male thread 126. Reinforcing screw
140. Restraint 142. Female thread
144. Captive screws F. Spiral bar
F '. Spiral projection

Claims (6)

A single support for receiving a part of each of the pair of spiral reinforcing bars and screwing and supporting the spiral projections of the spiral reinforcing bar,
And a pair of restraining members for restraining a pair of spiral bars by screwing the spiral protrusions with the spiral projections,
Wherein the support and the restraint are housed together to receive a pair of spiral reinforcing bars in an integrated state and simultaneously generate a tensile force and a compressive force on the spiral reinforcing bars when the pair of constraining holes rotate away from each other in the opposite direction Reinforcing end connections for spiral reinforcing bars.
2. The reinforced bar end of claim 1, wherein the pair of restraints are of the same shape to provide a tensile force to the spirally reinforced bar, and the single support provides compressive force to the spirally reinforced bar.
[3] The apparatus according to claim 2, wherein both ends of the support have inclined portions formed by inclining the male screw to be engaged with the restraining member,
And a reinforcing bar coupling screw having a pitch corresponding to the helical projections is provided in the inside of the support.
4. The connector according to claim 3,
Wherein a female screw having a pitch corresponding to the male screw and a projection receiving screw having a pitch corresponding to the helical projection are provided and the male screw and the female screw have pitches different from the projecting screw and the steel screw, Reinforcing connector.
5. The reinforced bar coupling of claim 4, wherein a threaded screw is applied to the male and female threads.
6. The apparatus according to claim 5,
And a check hole for checking a position of a pair of spiral reinforcing end portions inserted into the support portion from outside.
KR1020140085028A 2014-07-08 2014-07-08 Reinforcing rod a coupling device for hooped reinforcement KR101506733B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020140085028A KR101506733B1 (en) 2014-07-08 2014-07-08 Reinforcing rod a coupling device for hooped reinforcement
CN201580017007.7A CN106133255B (en) 2014-07-08 2015-07-08 Spiral reinforcement rebar connector
EP15818954.8A EP3168386A4 (en) 2014-07-08 2015-07-08 Steel bar connector for threaded steel bars
JP2016533270A JP6208359B2 (en) 2014-07-08 2015-07-08 Reinforcing bar coupler for spiral rebar
PCT/KR2015/007089 WO2016006934A1 (en) 2014-07-08 2015-07-08 Steel bar connector for threaded steel bars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140085028A KR101506733B1 (en) 2014-07-08 2014-07-08 Reinforcing rod a coupling device for hooped reinforcement

Publications (1)

Publication Number Publication Date
KR101506733B1 true KR101506733B1 (en) 2015-03-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140085028A KR101506733B1 (en) 2014-07-08 2014-07-08 Reinforcing rod a coupling device for hooped reinforcement

Country Status (5)

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EP (1) EP3168386A4 (en)
JP (1) JP6208359B2 (en)
KR (1) KR101506733B1 (en)
CN (1) CN106133255B (en)
WO (1) WO2016006934A1 (en)

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KR20180113729A (en) * 2017-04-07 2018-10-17 이신호 coupler for joinning of rebar
KR102105141B1 (en) * 2019-11-07 2020-04-27 황영태 Reinforcing bar coupler with tapered clamping structure

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KR102272480B1 (en) * 2019-10-15 2021-07-02 양현민 steel reinforcing bar coupler for concrete construction
DE102020102910B3 (en) * 2020-02-05 2021-07-01 CNC-Technik Lapp GmbH Screw clamp
CN111364691A (en) * 2020-04-23 2020-07-03 南京奎道科技有限公司 Screw thread clip formula steel bar connection spare
RU204021U1 (en) * 2020-12-04 2021-05-04 Александр Петрович Перфильев COUPLING FOR CONNECTING REINFORCEMENT RODS OF FRAMES AND NETS
CN113857775B (en) * 2021-09-08 2023-03-24 中建材中岩科技有限公司 Preparation method of semi-grouting sleeve with high connection quality and low cost and product thereof
WO2023219150A1 (en) * 2022-05-12 2023-11-16 合同製鐵株式会社 Coupler for threaded rebar and threaded rebar equipped with said coupler
CN115504387A (en) * 2022-11-22 2022-12-23 中国核工业二四建设有限公司 Auxiliary hoisting equipment for installing reinforcing steel bars and auxiliary hoisting method thereof

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KR20180113729A (en) * 2017-04-07 2018-10-17 이신호 coupler for joinning of rebar
KR101979898B1 (en) * 2017-04-07 2019-05-17 이신호 coupler for joinning of rebar
KR102105141B1 (en) * 2019-11-07 2020-04-27 황영태 Reinforcing bar coupler with tapered clamping structure

Also Published As

Publication number Publication date
CN106133255A (en) 2016-11-16
CN106133255B (en) 2018-11-20
EP3168386A1 (en) 2017-05-17
WO2016006934A1 (en) 2016-01-14
JP6208359B2 (en) 2017-10-04
JP2016532029A (en) 2016-10-13
EP3168386A4 (en) 2018-03-14

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