KR101836922B1

KR101836922B1 - A device for coupling reinforcing rod

Info

Publication number: KR101836922B1
Application number: KR1020150122447A
Authority: KR
Inventors: 조춘규
Original assignee: 조춘규
Priority date: 2015-08-31
Filing date: 2015-08-31
Publication date: 2018-03-09
Also published as: KR20170025670A

Abstract

[0001] The present invention relates to a reinforcing bar having a pair of reinforcing bars accommodating a reinforcing bar end along both axial ends, each reinforcing bar having a receiving opening toward both ends thereof and having a ratchet accommodating portion formed radially through the reinforcing bar accommodating portion, A housing; A ratchet accommodated in the ratchet accommodating portion and rotatable between a stop position for contacting the reinforcing bar with respect to a pivot axis in the axial direction in the axial direction and a permissible position spaced from the reinforcing bar; And a spring for providing the elasticity of the ratchet to rotate in the direction of the detent position. Thus, it is possible to connect the reinforcing bars and the pipes in a one-touch type, thereby improving the versatility and the working efficiency.

Description

{A device for coupling reinforcing rod}

The present invention relates to a rebar connector.

When reinforcing bars used for reinforcing concrete structures are continuously connected in the longitudinal direction, the end regions of the reinforcing bars are overlapped with each other and fastened with binding wires. Since the reinforcing bar connection method by the fastening of the fastening line causes waste of the reinforcing material corresponding to the overlapping portion and it depends on the manual work of the worker, the strength of the reinforcing bar, the working efficiency and the economical efficiency are lowered. Several rebar connectors have been proposed that interconnect one end.

However, since the conventional reinforcing bar coupling uses a screw fastening or an additional ratchet member, the structure is complicated or the workability of the operator is inconvenient.

SUMMARY OF THE INVENTION An object of the present invention is to provide a reinforced concrete connector having a one-touch type which is improved in working efficiency and is capable of connecting reinforcing bars and pipes.

In order to achieve the above object, a reinforcing bar according to the present invention has a pair of reinforcing bars accommodating portions each having a receiving opening toward both ends and accommodating an end of a reinforcing bar along an axial direction, A tubular housing having a portion; A ratchet accommodated in the ratchet accommodating portion and rotatable between a stop position for contacting the reinforcing bar with respect to a pivot axis in the axial direction in the axial direction and a permissible position spaced from the reinforcing bar; And a spring for providing the rotating elastic force in the direction of the stop position of the ratchet.

Here, it is preferable that the housing has a detent jaw for limiting the insertion depth of the reinforcing bar therein.

The ratchet includes a detent tooth portion that contacts the surface of the reinforcing bar at the stop position to prevent the movement of the reinforcing bar in the pulling direction and a pinching portion that protrudes outward of the housing and rotates in the direction of the permissible position against the elastic force of the spring A ratchet body having an operating protrusion for receiving the ratchet; The ratchet body includes a pivot pin that is rotatably connected to the housing to prevent the deviation of the reinforcing bars and facilitate the work of correcting the reinforcing bars.

The spring is preferably a spiral spring wound spirally on the pivot pin and having one end engaged with the ratchet body and the other end engaged with the housing.

A wedge ring disposed at one end region of the receiving opening, the wedge ring having an inner diameter portion through which the reinforcing bars pass and a cone outer diameter portion gradually increasing in diameter toward the housing; And an end cap having an inner diameter portion corresponding to the conical outer diameter portion and a coupling portion coupled to the one end portion of the housing and coupled to the housing to press the inner diameter of the conical portion radially inward, .

According to the present invention, it is possible to connect a reinforcing bar and a pipe in a one-touch type, thereby providing an effect of improving general purpose and work efficiency.

1 is a perspective view of a rebar connector according to the present invention,
2 is an enlarged perspective view of a ratchet and a spring unit according to the present invention,
FIGS. 3A and 3B are cross-sectional views illustrating an operation process of a reinforcing connector according to the present invention,
4 is an enlarged cross-sectional view of an enlarged view of a receiving opening of a reinforcing bar according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

1 is a perspective view of a rebar connector according to an embodiment of the present invention. As shown in FIG. 1, the reinforcing bar 1 has a tubular housing 100. In the illustrated embodiment, it is a circular tubular body, but in some cases, it may be provided as a polygonal tubular body. The housing 100 has a pair of reinforced bar receiving portions 110 each having a receiving opening toward both ends and accommodating the end portion of the reinforcing bar 3 along the axial direction. At both ends of the reinforcing bar receiving portion 110, a reinforcing bar guide portion 170 is formed to be narrowed toward the inside of the housing 100, thereby facilitating the insertion of the reinforcing bars 3.

The housing 100 has a detent jaw 150 for limiting the insertion depth of the reinforcing bar 3. Thereby preventing the reinforcing bars 3 from being inserted beyond a predetermined depth.

A plurality of ratchet receiving portions 130 formed radially through the reinforcing bar receiving portion 110 are disposed at predetermined distances along the axial direction and the circumferential direction around the housing 100. At both ends of the ratchet receiving portion 130, a rotation stopping jaw 160 is provided to limit the rotation range of the ratchet 200. [

FIG. 2 is an enlarged perspective view of a ratchet 200 according to the present invention, and FIGS. 3a and 3b are cross-sectional views illustrating an operation process of a rebar connector. 1, the ratchet 200 according to the present invention is accommodated in the ratchet receiving portion 130 and rotatably mounted on the pivotal axis in the axial direction to contact the reinforcing bar 3 It is possible to rotate between the stop position and the permissible position spaced from the reinforcing bar 3. [ The ratchet 200 includes a ratchet body 210 including a detent tooth portion 213 and an operation protrusion 215 as shown in Figure 2 and a ratchet body 210 rotatably connecting the ratchet body 210 to the housing 100 And has a pivot pin. The detent tooth portion 213 of the ratchet body 210 comes into contact with the surface of the reinforcing bar 3 at the stop position to prevent the movement of the reinforcing bar 3 in the drawing direction. In some cases, it is preferable to increase the contact area with the reinforcing bars 3 by taking a part of the area of the detent tooth portion 213 in contact with the reinforcing bars 3 to prevent movement in the drawing direction.

The operating protrusion 215 protruding outward of the housing performs a turning operation in the direction of the permissible position against the elastic force of the spring 300 to be described later. Thus, the ratchet 200 at the stop position is switched to the permissible position, and the movement of the reinforcing bar 3 in the pulling direction is made free. A through hole (not shown) is formed in the axial direction of the operating projection in accordance with the situation, and then the through holes (not shown) are connected to each other using a string or a wire, . The method of operating the operation projection at a time is not limited thereto.

1, the pivot pin 230 rotatably connecting the ratchet body 210 to the housing 100 is fitted to one side of the ratchet receiving portion 130 in the lateral direction so that the ratchet 200 is inserted into the housing 100, (100).

As shown in the illustrated embodiment, the ratchet 200 having such a configuration is preferably provided with three ratchet 200 in a longitudinal direction and a circumferential direction with a predetermined interval, but in some cases, Or more.

A spring 300 for transmitting a rotational elastic force to the ratchet 200 in the stop position direction is interposed in the central region of the ratchet 200. [ The spring 300 is spirally wound on the pivot pin 230 so that one end of the spring 300 is caught by the spring catching jaw 217 of the ratchet body 210 and the other end is fixed to the peripheral surface of the housing 100 do. The spring 300 preferably provides a resilient restoring force for returning the ratchet 200 to the home position when the ratchet 200 is switched from the stop position to the permissible position and is preferably provided with a helical spring, but may be provided with a toggle spring and a spring. In the illustrated embodiment, the spring 300 is provided on only one side of the ratchet 200 along the pivot axis of the pivot pin 230. However, in some cases, the spring 300 may be provided on both sides.

3B, when the reinforcing bar 3 is received through the reinforcing bar receiving portion 110, the reinforcing bar 1 is received so as not to interfere with the entering of the reinforcing bar 3, Is fixed by the detent tooth portion 213 of the ratchet 200 formed along the circumference of the shaft 100 to be fixed at any position of the reinforcing bar to prevent movement in the drawing direction. If necessary, the ratchet 200 can be moved to the permissible position via the operating protrusion 215 to release the reinforcing bar 3. [ Accordingly, the reinforcing bars and pipes can be easily connected.

4 is an enlarged cross-sectional view of an enlarged view of a receiving opening of a reinforcing connector according to another embodiment of the present invention. As shown in Fig. 4, the inside of the receiving opening formed at both ends of the housing 101 is formed to be stepped. A wedge ring (400) is interposed in one end region of the stepped receiving opening. The wedge ring 400 has an inner diameter portion 410 passing through the reinforcing bar 3 and penetrating in the longitudinal direction and a conical outer diameter portion 430 having a gradually increasing diameter toward the housing 101.

Between the wedge ring 400 and the receiving opening of the housing 101 is provided an end cap 500 having an inclined surface that contacts each other corresponding to the conical outer diameter portion 430 of the wedge ring 400. The end cap 500 is formed with a conical inner diameter portion 510 corresponding to the conical outer diameter portion 430 and a coupling portion 520 corresponding to the male screw portion formed at one end of the housing 101. As a result, the end cap 500 is fastened to both ends of the housing 101, and the inner diameter portion 510 of the wedge ring 400 interposed therebetween is radially inwardly pressed while gradually moving toward the inner side of the housing 101 So that the inner reinforcing bars 3 can be firmly fixed without rocking.

1: Reinforcing connector 3: Reinforcing
100: housing 110: reinforcing bar receiving part
130: ratchet receiving part 150: stopping jaw
160: rotation jaw 170: reinforcing guide portion
200: ratchet 210: ratchet body
213: detent tooth portion 215: operation projection
217: spring jaw 230: pivot pin
300: spring 400: wedge ring
410: inner neck portion 430: cone outer neck portion
500: end cap 510:
520:

Claims

In the reinforcing connection,
A tubular housing having a pair of reinforcing bars accommodating the ends of the reinforcing bars along the axial direction and having a receiving opening toward both ends thereof and having a ratchet receiving portion formed radially through the reinforcing bar receiving portion;
A ratchet accommodated in the ratchet accommodating portion and rotatable between a stop position for contacting the reinforcing bar with respect to a pivot axis in the axial direction in the axial direction and a permissible position spaced from the reinforcing bar;
And a spring for providing said ratchet with a rotational elastic force in the direction of said detent position,
The ratchet,
A stop tooth portion which contacts the surface of the reinforcing bar at the stop position to prevent the movement of the reinforcing bar in the pulling direction and an operation protrusion protruding outward of the housing to rotate in the direction of the permissible position against the elastic force of the spring A ratchet body,
And a rotatable pin rotatably connected to the ratchet body.

The method according to claim 1,
Wherein the housing has a detent jaw which limits the insertion depth of the reinforcing bars therein.

delete

The method according to claim 1,
Wherein the spring is a spiral spring wound spirally on the pivot pin and having one end engaged with the ratchet body and the other end engaged with the housing.

5. The method according to any one of claims 1 to 4,
A wedge ring disposed at one end region of the receiving opening, the wedge ring having an inner diameter portion through which the reinforcing bars pass and a conical outer diameter portion gradually increasing in diameter toward the housing;
Further comprising an end cap having a conical inner diameter portion corresponding to the conical outer diameter portion and a coupling portion coupled to one end of the housing and coupled to the housing to radially inward the inner diameter of the conical portion, .