KR101563637B1 - Pipe connecting type reinforcing bar coupler - Google Patents

Pipe connecting type reinforcing bar coupler Download PDF

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Publication number
KR101563637B1
KR101563637B1 KR1020140124371A KR20140124371A KR101563637B1 KR 101563637 B1 KR101563637 B1 KR 101563637B1 KR 1020140124371 A KR1020140124371 A KR 1020140124371A KR 20140124371 A KR20140124371 A KR 20140124371A KR 101563637 B1 KR101563637 B1 KR 101563637B1
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KR
South Korea
Prior art keywords
reinforcing bar
connecting pipe
pipe
reinforcing
tube
Prior art date
Application number
KR1020140124371A
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Korean (ko)
Inventor
김종대
Original Assignee
주식회사 삼보엔지니어링
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Priority to KR1020140124371A priority Critical patent/KR101563637B1/en
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Publication of KR101563637B1 publication Critical patent/KR101563637B1/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
    • 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
    • F16B7/04—Clamping or clipping connections
    • F16B7/0406—Clamping or clipping connections for rods or tubes being coaxial
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The present invention relates to a screw-type connecting device applied to a mechanical joint of a reinforcing bar (10) embedded in a concrete structure, wherein a separate connecting pipe (30) is connected to each end of the connecting reinforcing bar (10) And the connecting pipe 30 is fastened to each other with a pipe chain coupling pipe 40 having a female thread formed on the inner peripheral surface thereof so that the reinforcing bars 10 to be connected are not rotated integrally So that the screw can be tightened.
According to the present invention, when forming the threaded reinforcing bars 10, it is possible to tightly fasten the reinforcing rods 10 without rotating the reinforcing rods 10 integrally, thereby remarkably improving the convenience of the laying work.

Description

TECHNICAL FIELD [0001] The present invention relates to a pipe coupling type reinforcing bar coupling device,

The present invention relates to a screw-type connecting device applied to a mechanical joint of a reinforcing bar (10) embedded in a concrete structure, wherein a separate connecting pipe (30) is connected to each end of the connecting reinforcing bar (10) And the connecting pipe 30 is fastened to each other with a pipe chain coupling pipe 40 having a female thread formed on the inner peripheral surface thereof so that the reinforcing bars 10 to be connected are not rotated integrally So that the screw can be tightened.

As for the method of connecting the reinforcing bars 10 embedded in the concrete in the reinforced concrete structure, the reinforcing bars 10 may be formed by superposing both end portions of the reinforcing bars 10 and then joining the reinforcing bars 10 with wires or the like, The mechanical joint is not only dependent on the concrete adhesion but also has the advantage of securing the connection strength and quality control in construction because it does not involve the modification of materials such as heating during the connection process. .

In the mechanical joint of the reinforcing bars 10, the screw joints are not formed in the connecting portion and the center lines of the reinforcing bars 10 are aligned with each other, so that they can be applied to a narrow space and minimize encroachment of the concrete section. This threaded reinforcing bar 10 is formed by forming a thread directly on the end of the reinforcing bar 10 and forming a male thread on the outer circumferential face of the pipe connected to the end of the reinforcing bar 10, And a double screw type in which a separate female screw is fastened to the female screw.

The double-threaded mechanical reinforcing bar 10 has an advantage that it can be applied without machining a thread to the reinforcing bar 10, and related related art is disclosed in Japanese Patent Laid-Open No. 1998-87741.

The conventional double threaded reinforcing bar 10 connecting apparatus including the patent laid-open publication No. 1998-87741 includes an inner tubular member tightly coupled to an end portion of the reinforcing bar 10 and having an outer circumferential surface machined by male thread, A tapered inner tube whose outer diameter is gradually reduced is connected to a female screw whose inner diameter is gradually increased and is fixed in such a manner that the inner tube is pressed and closely attached to the end of the reinforcing bar 10. [

Therefore, at least one side of the reinforcing bars 10 of the two side reinforcing bars 10 to be connected must be rotated during the connecting process. However, considering that the reinforcing bars 10 are mostly manually operated, So as to cause deterioration in workability.

Particularly, in a reinforcing bar 10 having a closed curve such as a round, oval, rectangular or other polygonal shape of the reinforcing bar 10 such as a band reinforcing bar 10 or an annular reinforcing bar 10, Since it is impossible to rotate the reinforcing bars 10, it is impossible to apply the conventional double threaded reinforcing bars 10 as well as the threaded connecting devices themselves, It was forced to dispose of the reinforcing bars 10 or the reinforcing bars 10 through the joints.

This restriction on the closure of the closure reinforcing bar 10 not only serves to lower the connection strength of the closure reinforcement 10 but also causes material denaturation due to welded joints and the like, And adversely affect the stability.

The present invention has been made in view of the above problems and has been made in view of the above problems and has an object to provide a method of manufacturing a reinforcing bar comprising a parallel rib and a reinforcing bar, which are parallel protrusions parallel to the center line of the reinforcing bar, (10) having an annular rib (12) as a projecting annular ring concentric with the outer peripheral surface (10) of the reinforcing bar (10) And a connecting pipe 30 in which an internal thread is formed on an inner circumferential surface of the connecting pipe 30. The connecting pipe 30 is connected to the reinforcing bar 10 by a screw A connecting tube 20 is attached to the upper and lower sides of the parallel ribs 11 at the ends of each of the reinforcing bars 10 to be connected, And the male threaded portion 21 is formed on the outer peripheral surface of the divided tube 20, A separate connecting pipe 30 is coupled to each end of the reinforcing bar 10 so that the inclined inner diameter of the connecting pipe 30 coinciding with the outer circumferential surface of the divided pipe 20 gradually decreases toward the distal end side, The female screw portion 31 is formed on the inner circumferential surface of the connecting pipe 30 so that the male screw portion 21 of the split pipe 20 tightly fitted to the reinforcing bar 10 is screwed to the female screw portion 31 of the connecting pipe 30, The outer circumferential surface of each connecting pipe 30 is formed with an outer circumferential thread portion 35 extending from the front end of the connecting pipe 30 to the rear side and the inner circumferential surface of the connecting pipe 30 ) Is fastened to the outer peripheral threaded portion (35) of the outer peripheral surface of the outer peripheral surface of the outer peripheral surface of the outer peripheral surface of the outer peripheral surface of the outer peripheral surface of the inner peripheral surface.

A plurality of annular ribs 12 are equally spaced from each other on the upper and lower reinforcing bars 10 of the parallel ribs 11, And a position on the side of the reinforcing bar 10 of the annular rib 12 formed on the outer circumferential surface of the upper side of the parallel rib 11 of the reinforcing bar 10 and a position on the lower outer circumferential surface of the parallel rib 11 of the reinforcing bar 10, The outer circumferential surface of the annular rib 12 is spaced apart from the side of the reinforcing bar 10 and the inner circumferential surface of the split tube 20 is repeatedly formed with the bar portion 23 projecting toward the center and the valley portion 24 projecting toward the outside, 24 are in conformity with the interval between the annular ribs 12 of the reinforcing bar 10 so that the bottom surface of the valley 24 is in close contact with the outer periphery of the annular rib 12 of the reinforcing bar 10, The surface of the top part is in contact with the outer circumferential surface of the reinforcing bar 10 between the annular ribs 12 and the bar 23 of the reinforcing bar 10 and the reinforcing bars 10 ) Parallel The position of the bar 23 on the side of the reinforcing bar 10 of the split pipe 20 which is in close contact with the lower side of the bracket 11 is also spaced apart from each other, Wherein the spacing distance is the same as the spacing distance between the bars 23 of the divided pipe 20 which is in close contact with the upper and lower sides of the parallel ribs 11 of the reinforcing bars 10. [

According to the present invention, when forming the threaded reinforcing bars 10, it is possible to tightly fasten the reinforcing rods 10 without rotating the reinforcing rods 10 integrally, thereby remarkably improving the convenience of the laying work.

Particularly, in the case where the starting point and the end point of a closed reinforced bar 10 arranged in a closed curve form such as a band bar 10 or an annular bar 10 incapable of rotation of the connection target reinforcing bars 10 are mutually connected It is possible to diversify the joining method of the clasped reinforcing bars 10 which are limited to the conventional folding or welded joints and thus to improve the connection strength of the clasped reinforcing bar 10, It is possible to suppress the denaturation of the material due to welded joints and the like, so that the quality of the roots and the structural stability of the structure can be remarkably improved.

It is also possible to repeatedly form the bar 23 and the valley 24 on the inner circumferential surface of the divided tube 20 which is in close contact with the reinforcing bars 10 so that the reinforcing bars 10 can be tightly engaged with each other, It is possible to improve the connection strength between the reinforcing bars 10, improve the convenience and efficiency of the work, and shorten the air and reduce the construction cost.

Fig. 1 is a state explanatory diagram in which the present invention is applied to a closure steel bar. Fig.
Fig. 2 is a perspective view showing the use state of the present invention.
3 is a partially cut exploded perspective view of the present invention
4 is a view explaining a reinforcing bar connection process using the present invention
Fig. 5 is an explanatory view
Fig. 6 is a perspective view of a cutting-
Figure 7 is a representative cross-sectional view of the use state of the present invention
Figure 8 is a cross-

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A detailed configuration of the present invention will be described with reference to the accompanying drawings.

First, FIG. 1 illustrates a closed reinforced steel bar 10 that can be threadedly connected through the application of the present invention. As shown in the figure, a reinforcing bar 10 forming a closed curve of a circular or rectangular shape on the cross- The reinforcing bar 10 can be connected without rotation by applying the present invention in which the pair of connecting pipes 30 are mutually fastened to each other through the binding pipe 40. [ do.

As shown in the drawings, the present invention includes a split pipe 20 in direct contact with a reinforcing bar 10, and a pair of female threads 20, A coupling pipe 30 and a coupling pipe 40 for coupling the pair of coupling pipes 30 to each other.

The present invention is characterized in that parallel ribs 11 are formed at both ends of the outer peripheral surface of the reinforcing bar 10 and a plurality of annular ribs 12 are formed on the outer peripheral surface of the upper and lower reinforcing bars 10 at equal intervals 3, which shows the internal structure of the end of the reinforcing bar 10 and the female connection pipe 30 immediately before the screw connection, the tapered type A plurality of divided tubes 20 having a male threaded portion 21 formed on the outer circumferential surface as a tubular body are closely attached to the ends of the reinforcing bars 10 to be connected and the reinforcing bars 20 10) are connected.

That is, the present invention is characterized in that a parallel rib 11, which is a lateral protrusion parallel to the center line of the reinforcing bar 10, and an annular rib 12, which is an annular protruding annulus concentric with the reinforcing bar 10, A connecting device for connecting a reinforcing bar 10 is provided with an arc-shaped divided pipe 20 which is in close contact with an end of a reinforcing bar 10 to be connected and has a male thread on an outer circumferential surface thereof, 2 and 3, a pair of split pipes 20 (20) are connected to the reinforcing bars 10, respectively, as shown in FIGS. 2 and 3, A separate connecting pipe 30 is first screwed to the ends of the reinforcing bars 10 to be connected to each other and the connecting pipes 30 are screwed to each other through the connecting pipe 40, .

In the above-described conventional technique, the ends of the reinforcing bars 10 to which the divided pipes 20 are connected are connected to both sides of the single connecting pipe 30. At least one of the ends of the reinforcing bars 10 In the present invention, the connection pipe 30 is fastened to the coupling pipe 30 in a state where a separate connection pipe 30 is coupled to the ends of the reinforcing bars 10 to be connected to each other, , It is possible to connect the reinforcing bars (10) only by rotation of the coupling pipe (40) without rotation of the reinforcing bars (10).

3, a partitioning pipe 20 is closely attached to the upper and lower sides of the parallel ribs 11 at the end portions of the respective connecting reinforcing bars 10, And a male screw portion 21 is formed on the outer circumferential surface of the divided pipe 20. The end portion of the reinforcing bar 10 to which the divided pipe 20 is attached is connected to a separate connecting pipe The inclined inner diameter of the connecting pipe 30 corresponding to the outer peripheral surface of the divided tube 20 is gradually reduced to the distal end side and the female threaded portion 31 is formed on the inner peripheral surface of the connecting pipe 30.

The inner circumferential surface of the divided pipe 20 is connected to the outer circumferential surface of the reinforcing bar 10 as the male thread portion 21 of the divided pipe 20 tightly attached to the reinforcing bar 10 is screwed to the female threaded portion 31 of the connecting pipe 30. [ A connecting pipe 30 in which a pair of split pipes 20 and a pair of split pipes 20 are screwed to each other is provided in the reinforcing bars 10 to be connected to each other, 4 shows a working process after a state in which the connection pipe 30 is installed at the end of the connecting pipe 30, respectively.

2 to 4, the outer peripheral surface of each connection pipe 30 is formed with an outer peripheral thread portion 35 extending from the front end to the rear side of the connection pipe 30 and the outer peripheral thread portion 35 of the side connection pipe 30, A coupling pipe 40 having an inner diameter equal to the outer diameter of the coupling pipe 30 and having an inner peripheral thread portion 45 having the same pitch as the outer peripheral thread portion 35 of the coupling pipe 30 is fastened to the inner peripheral surface thereof, (30).

As shown in FIGS. 3 and 4, the screw coupling between the coupling pipe 30 through the coupling pipe 40 is performed by first joining the coupling pipe 40 with the one coupling pipe 30a, The front end of the connecting pipe 30a and the tip of the other connecting pipe 30b are brought into close contact with each other and then the binding pipe 40 joined to the one connecting pipe 30a in a retracted state So that the divided pipe 20 and the connecting pipe 30 mounted on both sides of the reinforcing bars 10 and the reinforcing bars 10 and the connecting pipe 30 do not rotate integrally It is possible to tighten the screws between the coupling tubes 30 by rotating only the coupling tubes 40. [

The outer peripheral threaded portions 35 of the coupling tubes 30 are formed in a different manner in order to pre-tighten the coupling tubes 30a of the coupling tubes 40 and to fix them after entering the other coupling tubes 30b. 3 and 4, the outer peripheral threaded portion 35a of the coupling pipe 30a to which the coupling pipe 40 is to be fastened is sufficiently formed to be longer than the length of the coupling pipe 40, In the case of the other connecting pipe 30b in which the coupling tube 40a enters after the front ends of the connecting pipes 30 are closely contacted with each other, 35b are formed to have a length approximately equal to 1/2 of the length of the coupling pipe 40 as much as possible or less than the length of the coupling pipe 40 so that when the coupling pipe 40 is engaged with the other coupling pipe 30b, It is preferable that a strong fixation between the connection pipe 30b and the coupling pipe 40 can be performed at the end of the connection pipe 35b.

2 and 3, the reinforcing bar 10 to which the present invention is applied is a deformed reinforcing bar 10 having a plurality of ribs. The reinforcing bar 10 includes a parallel rib 11, which is a lateral protrusion parallel to the center line of the reinforcing bar 10, The center of the transversely parallel rib 11 is located on a horizontal line passing through the center of the reinforcing bar 10 and the annular rib 12 is formed in a ring shape, The rib 12 connects the one side parallel rib 11 and the other side parallel rib 11 to the semicircular ring having the outer diameter of the reinforcing bar 10 enlarged and projected.

3 and 5, a split pipe 20 is closely attached to the upper and lower sides of the parallel ribs 11 and is coupled to the coupling pipe 30 at the ends of the reinforcing bars 10, Here, the divided tube 20 is a tube having a tapered tube body whose outer diameter is gradually reduced to be divided into an arc shape approximate to a semicircle. A male threaded portion 21 is formed on the outer circumferential surface, (10).

5, the annular groove 20 is formed on the outer circumferential surface of the split tube 20, and the ring-shaped groove 28 And a coupling ring 29 made of a stretchable material such as rubber is coupled to the ring engagement groove 28 to fix the split pipe 20 so as not to be detached from the reinforcing bar 10 during operation.

3, the pair of split tubes 20 tightly coupled to the connection target reinforcing bars 10 are screwed to the joint tube 30 in which the female threaded portions 31 are formed, 20 are bound to the reinforcing bar 10. As shown in the figure, the connecting pipe 30 is formed such that the inclined inner diameter, which coincides with the outer circumferential surface of the divided pipe 20, And the female screw portion 31 is formed on the inner circumferential surface of the connecting pipe 30. The male screw portion 21 of the split pipe 20 coupled to the reinforcing bar 10 is screwed into the female screw portion 31 of the connecting pipe 30, The inner circumferential surface of the divided tube 20 is strongly adhered to the outer circumferential surface of the reinforcing bar 10.

This is because the inclined type split tube 20 having the male threaded portion 21 formed on the outer peripheral surface thereof is coupled to the female threaded portion 31 having the same inclination so that the divided tube 20 is gradually pressed toward the central axis side, In the present invention, as shown in Figs. 3, 5 and 6, the inner circumferential surface is pressed against the outer peripheral surface of the reinforcing bar 10, and the inner circumferential surface of the barrel 23 protrudes toward the center, The contact area between the inner circumferential surface of the divided tube 20 and the outer circumferential surface of the reinforcing bar 10 is dramatically increased compared with the prior art to secure a high degree of adhesion and a simple face- The outer circumferential surface of the concave and convex portions of the reinforcing bar 10 in which the ribs 12 are repeatedly engaged with the inner circumferential surface of the concave and convex portions of the divided tube 20 in which the rod portion 23 and the valley portion 24 are repeatedly engaged is constructed.

That is, by making the interval between the curved portions 24 of the divided tube 20 coincide with the spacing of the annular ribs 12 of the reinforcing bar 10, the bottom surface of the curved portion 24 is located outside the annular rib 12 of the reinforcing bar 10 And the surface of the top portion of the bar 23 is brought into close contact with the outer peripheral surface of the reinforcing bar 10 between the annular ribs 12 so as to maximize the close contact area, And the reinforcing bars 10 formed by the annular ribs 12 are tightly fitted to each other so that unnecessary activities between the partitioning pipe 20 and the reinforcing bars 10 sliding can be suppressed.

7, in the conventional deformed reinforcing bar 10 having the parallel ribs 11 and the annular ribs 12, the annular ribs 12 are formed in a semicircular shape on the upper and lower sides of the parallel ribs 11, The reinforcing bars 10 are disposed at equally spaced intervals in the longitudinal direction of the reinforcing bar 10. The reinforcing bars 10 are disposed on the side of the reinforcing bars 10 on the side of the annular ribs 12 equally spaced on the outer circumferential surface of the parallel ribs 11, The position on the side of the reinforcing bar 10 of the annular rib 12 equidistantly spaced from the lower outer circumferential surface of the parallel rib 11 of the flat plate-

7, the upper annular rib 12 and the lower annular rib 12 are slightly spaced from each other on the side surface, and the upper annular rib 12 and the lower annular rib 12 12 are respectively connected to the parallel ribs 11 by a distance approximate to the width of the annular rib 12.

Therefore, the bar 23 and the valley 24 are arranged at equal intervals on the inner circumferential surface of the divided tube 20, and the divided tubes 20 of the same shape on the upper side and the lower side of the parallel ribs 11 of the reinforcing bar 10 are collectively An unbalance is generated in a position on the side surface of the divided tube 20, so that it is difficult to tightly screw the female threaded portion 31 of the connecting tube 30 with the female threaded portion 31, and sufficient adhesion effect may not be secured.

The present invention is characterized in that a barrel 23 of a split pipe 20 which is in close contact with the upper side of a parallel rib 11 of a reinforcing bar 10 and a split pipe 20 which is in close contact with a lower side of a parallel rib 11 of the bar 10 The position of the side of the reinforcing bar 10 on the side of the reinforcing bar 10 is also spaced apart from each other as in the upper and lower annular ribs 12 of the reinforcing bar 10, The separation distance between the ribs 12 and the separation distance between the bar portions 23 of the divided tube 20 which are in close contact with the upper side and the lower side of the parallel rib 11 of the reinforcing bar 10 are the same.

That is to say, a different type of partitioning pipe 20 is applied as the partitioning pipe 20 connected to the upper side of the parallel rib 11 of the reinforcing bar 10 and the lowering pipe 20 connected to the lower side of the parallel rib 11 7, the annular rib 12 of the reinforcing bar 10 is correctly seated in the valley portion 24 of the partitioning tube 20, so that stable screwing between the partitioning tube 20 and the coupling tube 30 and The tight contact between the reinforcing bars 10 and the partitioning pipe 20 can be achieved.

7, the width of the curved portion 24 of the divided tube 20 is slightly widened as compared with the width of the annular rib 12 of the reinforcing bar 10, so that the arrangement of the annular ribs 12 It is also possible to accommodate errors and ensure ease of operation.

8, both side ends of the divided pipe 20 are brought into close contact with the parallel ribs 11 as shown in FIG. 8, which is a use state cross-sectional view of the present invention, so that the upper divided pipe 20 and the lower divided pipe 20, The parallel ribs 11 are firmly fixed between the tubes 20 so that an effective resistance is possible even in the axial movement of the reinforcing bar 10 as well as in the twisting.

10: Rebar
11: parallel rib
12: annular rib
20: Partition tube
21: Male threads
23: Seal
24:
28: ring engaging groove
29:
30: Connector
31: Female threads
35:
40: Coupling pipe
45: Inner peripheral thread

Claims (2)

A deformed reinforcing bar 10 having a parallel rib 11 which is a lateral projection parallel to the center line of the reinforcing bar 10 and an annular rib 12 which is a projecting annular ring concentric with the reinforcing bar 10, A connecting pipe 30 having an arc-shaped divided tube 20 and an internal thread formed on an outer peripheral surface of the reinforcing bar 10 and having an external thread formed on the outer peripheral surface of the reinforcing bar 10, (10) connecting apparatus in which a divided pipe (20) coupled to a connecting pipe (10) is screwed to a connecting pipe (30)
The divided pipes 20 are tightly adhered to the upper and lower sides of the parallel ribs 11 at the respective ends of the connecting bars 10. The outer diameter of the divided pipes 20 gradually decreases toward the front end side, A male screw portion 21 is formed on an outer peripheral surface of the male screw portion 21;
A separate connecting pipe 30 is connected to each end of the connecting reinforcing bars 10 to which the connecting pipe 20 is closely attached and the connecting pipe 30 is connected to the outer circumferential surface of the connecting pipe 20, And the female threaded portion 31 is formed on the inner peripheral surface of the coupling tube 30;
The inner circumferential surface of the divided pipe 20 is connected to the outer circumferential surface of the reinforcing bar 10 as the male thread portion 21 of the divided pipe 20 tightly attached to the reinforcing bar 10 is screwed to the female threaded portion 31 of the connecting pipe 30. [ Being crimped and fixed;
The outer circumferential surface of each connecting pipe 30 is formed with an outer circumferential thread portion 35 extending from the front end to the rear side of the connecting pipe 30. The outer circumferential thread portion 35 of the both side connecting pipe 30 is provided with an inner circumferential thread portion 45 The connecting tube 40 is fastened and the outer threaded portion 35 of the connecting pipe 30 is fastened to the connecting pipe 30 in order to pre-fasten the connecting pipe 30 to the connecting pipe 30, The outer peripheral threaded portion 35 of the coupling tube 30 to which the coupling tube 40 is preliminarily fastened is sufficiently formed to be longer than the length of the coupling tube 40 and is retracted after the coupling tube 40 is coupled The outer connecting threaded portion 35b is connected to the other connecting pipe 30 through which the coupling tube 40 enters after the front ends of the connecting tubes 30 are closely contacted with each other, The length of the tube 40 is shorter than the length of the tube 40 so that the end of the outer circumferential threaded portion 35b at the time of screwing in the coupling tube 40, A strong fixing between the connecting pipe (30b) and the coupling tube 40 is made;
A plurality of annular ribs 12 are formed at equal intervals (equidistant intervals) on the upper and lower reinforcing bars 10 of the parallel ribs 11, And a position on the side of the reinforcing bar 10 of the annular rib 12 formed on the outer circumferential surface of the upper side of the parallel rib 11 of the reinforcing bar 10 and a position of the annular rib 12 formed on the lower outer circumferential face of the reinforcing bar 10, The rib 12 is spaced apart on the side of the reinforcing bar 10;
The inner circumferential surface of the divided tube 20 is repeatedly formed with the bar portion 23 protruding toward the center side and the valley portion 24 projecting outwardly and the interval of the valley portions 24 is set to be equal to the interval between the annular ribs 12 of the reinforcing bar 10 The bottom surface of the trough portion 24 is brought into close contact with the outer periphery of the annular rib 12 of the reinforcing bar 10 and the surface of the top portion of the rope 23 is in contact with the outer peripheral surface of the reinforcing bar 10 between the annular ribs 12 / RTI >
The bar 23 of the split pipe 20 which is in close contact with the upper side of the parallel rib 11 of the reinforcing bar 10 and the bar 23 of the split pipe 20 which is in close contact with the lower side of the parallel rib 11 of the reinforcing bar 10 The reinforcing bars 10 are spaced apart from each other on the sides of the reinforcing bar 10 so that the distance between the upper side of the reinforcing bars 10 and the lower reinforcing ribs 12 and the distance between the upper and lower reinforcing ribs 12, And the spacing distance between the bar parts (23) of the tube (20) in close contact is the same. delete
KR1020140124371A 2014-09-18 2014-09-18 Pipe connecting type reinforcing bar coupler KR101563637B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105386566A (en) * 2015-11-25 2016-03-09 重庆亨尔通冶金新技术股份有限公司 Simple reinforcing steel bar connecting structure
CN105386567A (en) * 2015-11-25 2016-03-09 重庆亨尔通冶金新技术股份有限公司 Reinforcing steel bar splicing structure
KR102344476B1 (en) 2021-04-14 2021-12-28 양현민 Rebar coupler for beginning slip prevention
US11293182B2 (en) 2016-09-12 2022-04-05 Coupler Solutions Limited Coupling device, associated parts and a method of use thereof
KR20240058617A (en) 2022-10-26 2024-05-07 양현민 Reinforcing bar coupler with threaded connection method capable of helical pitch alignment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100725527B1 (en) * 2006-01-03 2007-06-08 삼양기전(주) A coupling device for reinforcing rod

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100725527B1 (en) * 2006-01-03 2007-06-08 삼양기전(주) A coupling device for reinforcing rod

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105386566A (en) * 2015-11-25 2016-03-09 重庆亨尔通冶金新技术股份有限公司 Simple reinforcing steel bar connecting structure
CN105386567A (en) * 2015-11-25 2016-03-09 重庆亨尔通冶金新技术股份有限公司 Reinforcing steel bar splicing structure
US11293182B2 (en) 2016-09-12 2022-04-05 Coupler Solutions Limited Coupling device, associated parts and a method of use thereof
US11332935B2 (en) 2016-09-12 2022-05-17 Coupler Solutions Limited Coupling device, associated parts and a method of use thereof
US11773595B2 (en) 2016-09-12 2023-10-03 Coupler Solutions Limited Coupling device, associated parts and a method of use thereof
KR102344476B1 (en) 2021-04-14 2021-12-28 양현민 Rebar coupler for beginning slip prevention
KR20220142325A (en) 2021-04-14 2022-10-21 양현민 Rebar coupler for beginning slip prevention
KR20240058617A (en) 2022-10-26 2024-05-07 양현민 Reinforcing bar coupler with threaded connection method capable of helical pitch alignment

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