KR20170085215A - A coupling device of steel reinforcing - Google Patents
A coupling device of steel reinforcing Download PDFInfo
- Publication number
- KR20170085215A KR20170085215A KR1020160004547A KR20160004547A KR20170085215A KR 20170085215 A KR20170085215 A KR 20170085215A KR 1020160004547 A KR1020160004547 A KR 1020160004547A KR 20160004547 A KR20160004547 A KR 20160004547A KR 20170085215 A KR20170085215 A KR 20170085215A
- Authority
- KR
- South Korea
- Prior art keywords
- reinforcing bar
- reinforcing
- screw
- long screw
- tool
- Prior art date
Links
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 139
- 229910000831 Steel Inorganic materials 0.000 title abstract description 10
- 239000010959 steel Substances 0.000 title abstract description 10
- 238000010168 coupling process Methods 0.000 title description 9
- 230000008878 coupling Effects 0.000 title description 8
- 238000005859 coupling reaction Methods 0.000 title description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000010422 painting Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 238000005242 forging Methods 0.000 description 5
- 238000005304 joining Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 239000010730 cutting oil Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000010273 cold forging Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
- F16B7/182—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements for coaxial connections of two rods or tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
- F16B7/185—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements with a node element
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a reinforcing bar connecting device, in which a screw portion is formed on an inner circumferential surface of a hollow portion, and a reinforcing bar connecting portion having a polygonal tool- A reinforcing bar connection structure for connecting a reinforcing bar joint to a long screw so that the reinforcing bars are mechanically connected to each other, or a reinforcing bar connection is moved to a short barrel with the ends of the reinforcing bars being in contact with each other; A grip portion is further formed at both ends of the tool connecting portion of the reinforcing bar and the non-slipping means is provided in the grip portion so that the reinforcing bar can be easily assembled using the grip when the reinforcing bar is assembled to the long screw formed in the bar; A side surface of the side grip portion coupled to the long screw is provided with a concave-convex portion in contact with the anti-loose nut to be engaged with the concave-convex portion formed on the anti-loose nut to prevent reverse rotation of the loose- . And the fastening position indicator is formed on the long screw or the short screw so as to be positioned at a half position of the length of the reinforcing bar with respect to the end of the reinforcing bar. Therefore, when the present invention is used, it is possible to manufacture at low cost, to withstand a tensile load larger than the base steel bar, to minimize the residual deformation amount of the steel bar by applying a loosening prevention nut, It will be visible to the naked eye.
Description
The present invention relates to a reinforcing bar connecting device, and more particularly, to a reinforcing bar connecting device which can be manufactured at low cost by forging a reinforcing bar, and is capable of withstanding a tensile load greater than that of a base steel bar connected by a screw fastening type, And it is possible to minimize the residual deformation amount during the mechanical joining of the reinforcing bars by applying a loosening preventing nut in connecting the reinforcing bars and also to visually confirm the amount of movement of the reinforcing bar connecting portion So as to provide an accurate locking condition.
Reinforced concrete structures are used together with reinforcing bars to reinforce the insufficient tensile strength of concrete. Normally, reinforcing bars are produced as standard products of a certain length.
In recent years, mechanical joints which are connected by a screw coupling method are widely used by using a coupler called a coupler as a joint structure between a reinforcing bar and a reinforcing bar.
The most common type of coupler that is used in general is a polygon with an octagonal outer circumference or an octagonal outer shape, or a short pipe whose outer circumference has a shape in which recesses and protrusions are repeated and a through hole is formed at the center Respectively. At this time, a female screw is formed on the inner peripheral surface of the through hole of the coupler.
The reason for forming the polygonal outer periphery or forming the recess and the convex portion was to prevent the coupler from slipping on the hand or the tool during the reinforcing steel fastening operation.
A male screw is formed at the end of the reinforcing bar to be coupled to the female screw so that a pair of reinforcing bars can be screwed and coupled by a coupler.
In recent years, for the purpose of improving the fastening speed, a two-row screw is applied as shown in the 'connection end portion of the diagonal bar for reinforcing concrete and its connecting device' of Korean Utility Model Application Publication (Y1) 20-0186303 There are also products.
On the other hand, a reinforcing bar coupler reinforced with a tensile strength of Korean Registered Patent Application No. B1-0 10 066143 (Apr. 30, 2008) has been proposed in consideration of handling properties and the like. In this case, a tensile strength reinforcing portion is provided in the middle, In which a worker grips by hand or a non-slip means capable of engaging the tool is arranged.
However, when the reinforcing bar of the rod reinforcing bars and the curved reinforcing bars can not be rotated, the reinforcing bars are connected only by the rotation of the coupler. In this case, since the ends of the reinforcing bars are not in close contact with each other, And the reinforcing bars are shaken.
Also, in the case of a conventional coupling, the degree of movement of the coupler depends on the experience of the operator when the coupler is moved to the reinforcing bar having the short screw in a state where the coupler is coupled to the reinforcing bar having the long screw. It has been difficult to ensure an accurate fastening state of the coupler.
Accordingly, the present inventor has researched all the problems of the above-described conventional reinforcing bar coupling (coupling).
That is, in the present invention, a tool coupling portion having an octagonal to twelve angle configuration is formed long in the center of the steel rod connector body so as to withstand a tensile load stronger than that of the base steel material while minimizing material consumption amount by cutting a round bar by cold forging, When a reinforcing bar is manually fastened to a long screw formed on the barrel, it is possible to provide a grip for providing non-slip functionality so that it can be gripped without slip and fastened. The fastening state of the loosening preventing nut can be confirmed visually and audibly, and at the same time, the residual deformation amount can be determined within the allowable range The present invention is directed to a method of manufacturing a reinforced concrete structure, .
In addition, when a reinforcing connector is fastened to a short thread formed on a mating steel rod by providing a fastening position indicator on a long screw or a cap screwed short screw fastened at the factory or site, So that the side contact state of the reinforcing bars to be connected can be accurately made at the midpoint of the reinforcing steel connector. The present invention has been completed based on the technical problem of the invention.
In the present invention, first, a screw portion is formed on the inner circumferential surface of the hollow portion, and a reinforcing bar connecting the tool connecting portion for joining the tool to the outside is formed in a polygonal shape, and the ends of the reinforcing bars, A reinforcing bar connection structure in which a reinforcing bar is individually fastened to a long screw so as to be mechanically connected or fastened together with an anti-loosening nut and the ends of the reinforcing bar are brought into contact with each other and the reinforcing bar is transferred to the short bar;
A grip portion is further formed at both ends of the tool connecting portion of the reinforcing bar and the non-slipping means is provided in the grip portion so that the reinforcing bar can be easily assembled using the grip when the reinforcing bar is assembled to the long screw formed in the bar; A side surface of the side grip portion coupled to the long screw is provided with concave and convex portions in contact with the anti-lock nut so as to be engaged with the concave and convex portions formed on the anti-loose nut to prevent reverse rotation of the anti-loose nut and minimize residual deformation.
Second, the non-slipping means formed on the grip portion is formed with a negative angle or a raised angle, and the recessed portion formed on the side surface of the grip portion and the recessed portion formed on the anti- So that the anti-loosening nut is prevented from rotating in the reverse direction and the coupling force can be increased.
Thirdly, the flat area of the tool connecting portion is made wider than the cross-sectional area of the connected reinforcing bars, so that the tensile load can be increased.
Fourth, the long screw or the short screw is provided with a fastening position indicating portion of the reinforcing connector; And the fastening position indicating part is formed at a position 1/2 of the length of the reinforcing bar with respect to the end of the reinforcing bar.
Fifth, the fastening position indicating part is formed by painting a long screw or a short screw in the circumferential direction.
Sixth, the fastening position display part is characterized in that one or more marking grooves are formed in the circumferential direction on a long screw or a short screw in a deeper than a screw thread.
The reinforcing bar connection device provided by the present invention has the following effects.
- It is possible to minimize the waste of materials by forging the steel connector, and the tensile strength can be improved by compacting the structure during the forging process.
- Since the cross-sectional area of the tool connection part of the reinforcing connection is made wider than the cross-sectional area of the reinforcing base, it can withstand the tensile load higher than the tensile load of the base steel.
- Since the gripping portion provided with the non-slipping means is provided on both sides of the tool-engaging portion, when the reinforcing connector is manually fastened to the long screw at the factory or construction site, it can be easily assembled by using the grip portion having a relatively smaller diameter than the tool- .
- Since the uneven part is formed on the side of the one gripping part and the unlocking nut, the locking state can be provided visually and audibly, and the reinforcement is fixed again by the unlocking nut. Therefore, the residual deformation amount can do.
- Since the fastening position indicator is provided on the long screw or the short screw, it is possible to work with checking with the naked eye in the field so that the long and short screws of both reinforcing bars can be staggered by ½.
1 is a perspective view showing a preferred embodiment of a reinforcing bar connecting apparatus provided in the present invention.
Figure 2 is a cross-
Fig. 3 is a perspective view illustrating an example of a reinforcing bar and a loosening nut applied to the present invention
Fig. 4 is a cross-sectional view showing a state in which a reinforcing steel connector used in the present invention is fastened to a long screw of a reinforcing bar
FIG. 5 is a perspective view showing a state in which a long screw of a reinforcing bar applied to the present invention is closed by a fastening position indicator; and FIG.
6 is a perspective view showing a state in which a marking groove is formed by a fastening position indicating part on a long screw of a reinforcing bar applied to the present invention;
Fig. 7 is a side sectional view of Fig. 6
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a preferred embodiment of a reinforcing bar connecting device provided in the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a perspective view showing a preferred embodiment of a reinforcing bar connecting apparatus provided by the present invention, and FIG. 2 is a sectional view of FIG. 1.
As shown in the drawings, the reinforcing bar 1 of the present invention comprises a reinforcing
Technical characteristics of the present invention include that firstly the structure of the reinforcing
In another aspect of the present invention, a
Hereinafter, the structure of the
FIG. 3 is a perspective view showing an embodiment of a reinforcing bar and an anti-loosening nut applied to the present invention, and FIG. 4 is a cross-sectional view showing a state in which a reinforcing bar is fastened to a long screw of a reinforcing bar.
The reinforcing
A
The
The cross-sectional area of the
By forming the
The
A
As shown in FIG. 4, when the
In addition, since the
In the case of the non-slip means 64, the
According to the drawings, the
On one side of the
A plurality of stopping
When the
In the case of the unlocking
FIG. 5 is a perspective view showing a state in which a long screw of a reinforcing bar according to the present invention is closed by a fastening position indicator, and FIG. 6 is a view showing a state where a marking groove is formed by a fastening position indicator on a long screw of a reinforcing bar according to the present invention Fig. 7 is a side sectional view of Fig. 6, respectively.
In the present invention, the
As shown in FIG. 6, the fastening
As shown in the drawing, the pulting may be formed as an outer line narrow in the circumferential direction, or may be formed selectively on the outer side (the end side) or the inner side of the yarn, which is not shown, have.
When water-soluble cutting oil or the like is used to form the threaded portion in the closing
6 and 7, one or more marking grooves are formed in the circumferential direction so as to be located at 1/2 of the length of the reinforcing
A preferable example of the marking groove is formed by forming two or three marking grooves so that the operator can easily confirm the position at any position. The marking groove is formed deeper than the screw thread formed in the reinforcing
When the fastening
While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of protection of the present invention should not be limited to the described embodiment, but should be determined by the equivalents as well as the claims that follow.
1: Reinforcing
3: Long screw 5: Short screw
6: Reinforcing connector 61: Screw
62: tool engagement portion 63:
64: Non-slip means 65, 71:
65a, 71a:
7: loosening nut 8: fastening position indicator
Claims (6)
A grip portion 63 is further formed at both ends of the tool engaging portion 62 of the reinforcing bar 6 and the grip portion 63 is provided with a non-slipping means 64 to form a long screw 3 formed on the reinforcing bar 2. [ So that the assembly can be easily assembled by using the grip portion 63 when assembling the reinforcing connector 6;
A concave and a convex portion 65 is formed on the side surface of the side grip portion 63 to be engaged with the long screw 3 so as to be in contact with the loosening preventing nut 7 and is engaged with the concave and convex portion 71 formed on the loosening preventing nut 7 So that reverse rotation of the loosening preventing nut (7) can be prevented and the amount of residual deformation can be minimized.
The non-slipping means 64 formed on the gripping portion 63 is formed with an engraved or raised angle and is provided with a recessed portion 65 formed on a side surface of the fragile grip portion 63 and a recessed portion 65 formed on the anti- A plurality of engaging protrusions 65b and 71b are formed in the circumferential direction so as to form inclined faces 65a and 71a inclined upward in the counterclockwise direction in the engaging protrusion 71 so as to prevent the unlocking nut 7 from rotating in the reverse direction And a reinforcing bar connecting device to increase the bonding force.
Wherein a flat area of the tool engagement part (62) is larger than a cross sectional area of the reinforcing bars (2) (4) to increase the tensile load.
The long screw (3) or the short screw (5) is provided with a fastening position indicator (8) of the reinforcing bar (6);
Wherein the fastening position indicator (8) is formed at a half of the length of the reinforcing bar (6) with respect to the end of the reinforcing bar (2) (4).
Wherein the fastening position indicating portion (8) is formed by painting a long screw (3) or a short screw (5) in a circumferential direction.
Wherein the fastening position indicating part (8) has one or more long marking grooves or a short screw formed in the circumferential direction so as to be deeper than threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160004547A KR20170085215A (en) | 2016-01-14 | 2016-01-14 | A coupling device of steel reinforcing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160004547A KR20170085215A (en) | 2016-01-14 | 2016-01-14 | A coupling device of steel reinforcing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20170085215A true KR20170085215A (en) | 2017-07-24 |
Family
ID=59429103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020160004547A KR20170085215A (en) | 2016-01-14 | 2016-01-14 | A coupling device of steel reinforcing |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20170085215A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021246784A1 (en) * | 2020-06-05 | 2021-12-09 | 기언관 | Non-rebar-rotating rebar connector |
| KR20210152665A (en) * | 2020-06-09 | 2021-12-16 | 연세대학교 산학협력단 | Anti-loosening coupler for deformed bar with improved bonding strength by using nodes and ribs shape |
-
2016
- 2016-01-14 KR KR1020160004547A patent/KR20170085215A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021246784A1 (en) * | 2020-06-05 | 2021-12-09 | 기언관 | Non-rebar-rotating rebar connector |
| KR20210152665A (en) * | 2020-06-09 | 2021-12-16 | 연세대학교 산학협력단 | Anti-loosening coupler for deformed bar with improved bonding strength by using nodes and ribs shape |
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| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
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