KR20120017763A

KR20120017763A - Steel reinforcement connector

Info

Publication number: KR20120017763A
Application number: KR1020100080560A
Authority: KR
Inventors: 강수일
Original assignee: 강수일
Priority date: 2010-08-20
Filing date: 2010-08-20
Publication date: 2012-02-29
Also published as: KR101210827B1

Abstract

PURPOSE: A rebar connector is provided to ensure sufficient connecting force required for connecting rebar minimizing length and decreasing the number of bolts. CONSTITUTION: A rebar connector is as follows. A coupling hole(14) is formed between frames on the top and bottom of a body(10). One or more guide holes(16) communicated part of the coupling holes are formed on the upper and lower parts of the side of the body. Pressure pins(18,20) are coupled to each guide hole of the body. Each bolt passes through the connecting hole(18a) of one pressure pin and is screwed to the screw hole(20a) of the other pressure pin.

Description

Rebar connector {STEEL REINFORCEMENT CONNECTOR}

The present invention relates to a reinforcing bar connector, in particular, to satisfy the tensile strength as a reinforcing bar connection to minimize the assembly work during the reinforcing bar binding work.

Reinforcing bars installed in the vertical or horizontal direction to reinforce the strength of the structure when constructing various concrete structures are to be connected to install as necessary.

In addition, the connecting means of reinforcing bar is divided into non-mechanical joints, such as welded joints, welded joints and overlapping joints, and mechanical joints to be connected by a separate connection (site fastening), but mechanical joints with excellent assembly and robustness are the most. It is widely used.

Therefore, for rebar connector for mechanical joint of reinforcing bar, Patent Application No. 2010-38658, Japanese Patent Application Laid-Open No. 7-217079, Registration Utility Model No. 0182713 and Registration Utility Model No. 0412860 have already been provided. have.

However, regarding the mechanical joint of reinforcing bars, the Korean Standards Association used a one-way tensile test (more than 125% of reinforcing bar yield point), low cycle repetition test, and high stress repetition according to the test method for mechanical joint of rebar concrete bars (KS D 0249). As it is required to satisfy the strength test, high cycle fatigue test and low temperature performance test, existing rebar connectors can not satisfy at least one-way tensile test by themselves or to satisfy one-way tensile test. Problems such as increase.

That is, in Japanese Patent Application Laid-Open No. 7-217079, the webs and reinforcing bars of the upper and lower longitudinal joints have the upper and lower longitudinal joints when the upper and lower longitudinal joints are joined using bolt nuts by joining each other so that the ends of the reinforcing bars cross each other according to the coupling holes of the longitudinal root joints that are divided up and down. Because it is configured to maintain the binding force due to the locking of the rib, the strength of the connector itself is very weak and the locking with the reinforcing bar is difficult, so it is difficult to satisfy the one-way tension test and the low cycle repetition test prescribed by the Korean Standards Association.

In addition, the applicant's patent application Nos. 2010-38658, and Utility Model No. 0182713 and No. 0412860, the connector is a pipe type, satisfies its own strength, but the upper and lower reinforcing bars are connected by a plurality of bolts, which are fastened side by side on the upper and lower sides of the connector, respectively. In order to pass the one-way tensile test and the low cycle repetition test, which require more than 125% of the reinforcement yield point, it is necessary to increase the number of bolts. In addition, when the reinforcing work of the reinforcing bar, because the number of bolts that require tightening takes a lot of work time, there is a problem such that the construction period of the structure increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a reinforcing bar connector which can obtain sufficient binding force required when binding reinforcing bars while minimizing length and reducing the number of bolts required.

Reinforcing bar connector of the present invention for achieving the above object is to couple the pressure pins from both sides of each guide hole formed in communication with a portion of the coupling hole in the main body to press the other bolt through the connection hole of any one of the pressure pins It is characterized in that the left and right pressure pins are configured to pressurize the reinforcing bars when the bolts are tightened after the reinforcing bars are coupled to the bolt holes having the pins.

According to the present invention, the left and right pressure pins 18 and 20 at the time of tightening the bolt 22 pressurize and fix the reinforcing bars 24, so as to double the pressing force of the reinforcing bars 24 by the bolts 22, respectively. Bolts 22 for binding the reinforcing bar 24 can reduce the required number and accordingly can reduce the length of the main body 10 can reduce the material cost, in particular the binding of the reinforcing bar 24 The tightening time of the bolt 22 for reducing the construction period of the structure is to be able to shorten the effect.

1: perspective view of the present invention
2 is a cross-sectional view of the present invention
3 is a partial perspective view of the present invention
4 is a perspective view of the use state of the present invention
5 is a cross-sectional configuration of the use state of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate like elements in the drawings, It will be omitted for the sake of clarity.

1 is a perspective view of the present invention, Figure 2 is a cross-sectional configuration of the present invention, the present invention is a coupling hole 14 is formed between the top and bottom of the main body 10 with the engaging frame 12 between the main body and At least one guide hole 16 is formed through the upper and lower sides of the coupling hole 14 to communicate with a portion of the coupling hole 14, respectively, and each of the guide holes 16 of the main body 10 has pressing pins 18 from both sides. Each of the bolts 22 is configured to be coupled to the threaded holes 20a of the other pressing pins 20 by passing through the connection holes 18a of the pressure pins 18, respectively.

In addition, each of the guide holes 16 and the left and right pressure pins 18 and 20 inserted into the guide holes 16 penetrating from the side of the main body 10 are formed to be angular and press pins 18 and 20 when combined. To prevent the rotation of the pressing pins 18, 20 and the inner end of the contact pins 18b, 20b for contact with the reinforcing bar 24 is formed to be curved, the pressing pins 18, 20 At the outer end, the locking pieces 18c and 20c for protruding from the temporary assembly are protruded.

However, the guide hole and the pressure pin of the main body are not necessarily formed to be angled, and can be satisfied even if the locking piece is also removed.

However, the upper and lower thicknesses of the pressing pins 18 and 20 have a thickness smaller than the distance between the contact surfaces 24b between the protruding frames 24a of the reinforcing bars 24, so that the upper and lower thicknesses of the pressing pins 18 and 20 protrude upon pressing upon contact with the reinforcing bars 24. Only by engaging the frame (24a) will be able to obtain a more solid binding force.

The present invention couples the pressing pins 18 and 20 from both sides of each guide hole 16 of the main body 10 and the other pressing pins through the connection holes 18a of the pressing pins 18, respectively. When the bolt 22 is loosely fastened to the screw hole 20a of the 20, the pressing pins 18 and 20 are prevented from being separated from the main body 10 by the engaging pieces 18c and 20c. Can be stored and transported in a state.

In the binding operation of the reinforcing bar 24 using the present invention, when the end of the reinforcing bar 24 is deeply coupled to the upper and lower coupling holes 14 having the main body 10, respectively, and tighten the bolt 22, the left and right pressure pins ( 18) (20) is to bind the reinforcing bar 24 by pressing.

That is, each bolt 22 penetrates through the connection hole 18a of one of the pressure pins 18 and is fastened to the screw hole 20a of the other pressure pin 20, so that the left and right bolts 22 of the bolt 22 are locked. One pressing pin 18 loosely inserted in and supported by the bolt head and the other pressing pin 20 screwed with the bolt 22 are each advanced inwardly to have curved contact surfaces 18b and 20b at their ends. Since the bolt 22 is pressed against the contact surface 24b between the protruding frames 24a of the reinforcing bar 24 by the strong clamping force, the bar 24 can be firmly bound.

Therefore, the present invention provides the binding force of the reinforcing bar 24 as much as the two right and left pressing pins 18 and 20 are configured to pressurize and secure the reinforcing bar 24 respectively when the bolt 22 is tightened for binding the reinforcing bar 24. Since it can double the required number of bolts 22 to obtain the desired binding force can be reduced to minimize the length of the main body 20 to bring down the material cost during manufacturing, in particular the binding work of the reinforcing bar 24 At the time it is possible to shorten the tightening time of the bolt 22 will be able to shorten the construction period of the structure.

(10)-Body (12)-Jangte Frame
(14)-Joiner (16)-Guide
(18)-Pressure pin (18a)-Connector
(18b)-contact surface (18c)-jam
(20)-Pressure pin (20a)-Screw
(20b)-contact surface (20c)-jam
(22)-Bolt (24)-Rebar
(24a)-protrusion frame (24b)-contact surface

Claims

In the reinforcing bar connector configured to bind the reinforcing bar to the coupling hole formed up and down on the main body to bind the reinforcing bar by the tightening of the bolt, at least one guide in communication with the coupling hole 14 on the upper and lower sides of the main body 10, respectively. To form the ball 16 is coupled to the pressure pins 18, 20, which are configured to separate left and right in each guide hole 16, and then bolt 22 penetrating through the connection hole (18a) of any one pressure pin (18) Reinforcing bar connector, characterized in that the configuration by screwing to the screw hole (20a) having another pressing pin 20.

2. The left and right pressure pins 18 and 20 have contact surfaces 18b and 20b for contact with the reinforcing bars 24 at their inner ends, and are separated from the main body 10 at their outer ends. Reinforcing bar connector, characterized in that configured to have a locking piece (18c) (20c) for prevention.