KR101926130B1 - One-touch type reinforcing bar coupler - Google Patents

Abstract

The present invention relates to a reinforcing coupler, and more particularly to a reinforcing coupler, which is formed in a tubular shape, and has an outer inclined surface having an inclination extending from the front end to the rear end of the reinforcing bar on the outer circumferential surface, A pair of opposing locking members having locking protrusions formed on the inner side of the rear end and formed with diaphragm coupling grooves; A diaphragm which is inserted into the diaphragm coupling groove formed at the rear end of the lock member and supports the boundary of the both side lock members and the forward end of the reinforcing bars; And a supporting sloping surface 310 corresponding to the outer sloping surface of the locking member is formed on the inner circumferential surface of the locking member. When the locking member is constrained by the fastening force between the locking members and the outer sloping surface of the locking member when the reinforcing bars are engaged, By including a pair of housings,
And more particularly, to a one-touch type reinforcing coupler for facilitating handling in accordance with a simplified structure, convenience in assembling and construction, and capable of firmly holding the fastening force even when external fine vibration occurs in a fastened state will be.

Description

One-touch type reinforcing bar coupler

The present invention relates to a reinforcing coupler, and more particularly, to a one-touch type reinforcing coupler for convenient handling, convenience in construction in tensioning of reinforcing bars on both sides, and prevention of loosening.

Reinforcing bars used in reinforced concrete structures must be joined at regular lengths due to the limit of production length or the limit of construction method.

Generally, the joining method of reinforcing bars can be divided into lap joints that transfer the stresses of the reinforcing bars to the concrete around the reinforcing bars and gas pressure joints and mechanical joints that directly transmit the stresses of the reinforcing bars.

This lap joint is the most commonly used joining method, which is a conventional method in which reinforcing bars and reinforcing bars are overlapped with each other by a certain length so as to be joined through the adhesive force with concrete. However, the larger the diameter of the reinforcing bar is, The reinforcing bars exceeding D35 should not be overlapped in concrete structure design standard because there is a limit to exhibit effective adhesion performance based on the coating thickness and the reinforcing bar spacing applied to general reinforcing concrete members (columns, beams). "He said. In addition, it is not easy to ensure proper spacing of reinforcing bars in lap joints, which may cause problems in the filling of concrete. Further, loss occurs at the overlapping joint portion, and there is also a problem that it is difficult to manage the construction with respect to the deterioration of the strength due to the section defect and the joint length.

In addition, welded joints have a short protrusion length of reinforcing bars and can be connected even in a narrow place. The arc-stud welding time is minimized, but interference between adjacent reinforcing bars occurs due to the welding position, Over time, fluctuations in construction quality due to climate, the need for skilled craftsmen, and the possibility of a strike-slip mechanism in the event of an earthquake.

On the other hand, mechanical joint is a method of joining reinforcing bars that can resist tensile force irrespective of the adhesive strength of concrete by connecting the two reinforcing bars using an intermediate member (coupler). Depending on the method and type of joint, it can be classified into screw type, steel pipe compression type, wedge type, and mortar type, and the use thereof is continuously increasing. Although the strength of the joint is stable and unaffected by the worker's skill and weather, it is very small in the joint due to the limitations of the connection method, but slip may occur and it is most disadvantageous in terms of economy compared to the gas pressure point .

In addition, the threaded coupler method, which occupies most of the mechanical joints, is structurally problematic due to a fine clearance between the threads, which is inevitably existed because the female thread type and the male thread type are combined. Such minute clearances may cause a loosening phenomenon if momentary large loads or repetitive loads such as earthquakes are applied, and the strength of the joints may be greatly reduced, which may have a fatal impact on the structure.

Most of the conventional reinforcing bars are structured by inserting reinforcing bars into the inside of the housing and then screwing the housing into a screw, which is complicated in structure and difficult to connect the reinforcing bars. have.

In order to solve such a problem, Korean Patent Registration No. 0439305 (registered on Jun. 28, 2004) discloses a hollow inner coupler which is open on both sides of which reinforcing bars are inserted so as to face each other and a hollow inner coupler which is slidably coupled to both sides of the outer surface of the inner coupler An outer coupler, a plurality of balls reciprocating between the inner coupler and the outer coupler to control the flow of the reinforcing bars, and an elastic spring elastically urged between the inner coupler and the outer coupler to generate a predetermined elastic force therebetween Quot; one-touch type reinforcing bar coupling device ".

However, since the conventional coupler as described above is complicated in structure, it is troublesome in its use. Particularly, it is very uncomfortable to handle the ball by the structure of the ball which is freely separated and there is a risk of loss of the ball. There was a serious problem that could not be done.

Korean Patent Registration No. 10-0439305.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a one-touch type ferrule coupler designed to solve the above problems and to provide convenience in handling due to structural simplification and convenience in assembly and construction .

The present invention is also directed to a one-touch type reinforcing coupler for enabling a firm holding of a fastening force even when an external fine vibration or the like occurs in a fastened state.

In order to achieve the above-mentioned object, there is a specific means for achieving the above object, which is constituted in a tubular shape and has an outer sloped surface having an inclination extending from the front end to the rear end of the reinforcing bar on the outer circumferential surface, A pair of opposing locking members each having a plurality of locking protrusions formed by a straight line part repeatedly formed so as to hook the nodule projections of the reinforcing bars from the front end to the rear end and having diaphragm coupling grooves formed in the rear end inner side;

A diaphragm which is inserted into the diaphragm coupling groove formed at the rear end of the lock member and supports the boundary of the both side lock members and the forward end of the reinforcing bars; And

And a supporting sloping surface 310 corresponding to the outer sloping surface of the locking member is formed on the inner circumferential surface of the locking member. When the locking member is constrained by the fastening force between the locking members and the outer sloping surface of the locking member when the reinforcing bars are engaged, And a housing

The locking member

A portion corresponding to the outer inclined surface is divided into three portions with a spacing space, and a plurality of pressing members having elasticity that narrows to the center are formed,

An elastic member for imparting a compressive elastic force to the respective pressing members is provided in the elastic member inner groove at the outer periphery of the rear end of the pressing member,

With respect to the rear end opposing surfaces of the two side housings,

A female housing is formed on the inner circumferential surface of the one housing,

And the other housing is provided with a protruding male screw portion which is inserted into the female screw portion,

The two-

It may be constituted so as to be fastened to each other by a female thread portion and a male thread portion,

The two-

A male screw portion having a helical direction opposite to each other is formed on each of the outer circumferential surfaces,

And a fastening member having a female screw portion formed in a spiral direction opposite to each other so that the male screw portion is fastened to both sides of the inner circumferential surface,

The housing on both sides is simultaneously fastened by the unidirectional rotational force of the fastening member,

On the outer inclined surface corresponding to each pressing member of the lock member,

A guide groove is further formed in the longitudinal direction, and a plurality of engagement protrusions, in which the neck portion and the straight line portion are repeated, are formed continuously inside the guide groove,

On the support slopes of the two side housings,

A guide protrusion coupled to the guide groove is formed, and a plurality of locking protrusions are formed on the guide protrusion, the linear protrusion being engaged with the locking protrusion,

When the two housings are fastened to the fastening member, the fastening protrusion is caught by the fastening protrusion so as to prevent the housing from being loosened.

As described above, the one-touch type reinforced coupler according to the present invention comprises a locking member formed with a locking projection formed on an inner peripheral surface of a locking member and a housing for giving a clamping force to the locking member. It is possible to obtain a very convenient effect of assembling and reinforcing bar construction by forming a press-fitting structure of the lock protrusion according to the fastening method.

Further, it is possible to prevent the housing from being loosened by fastening the fastening protrusion formed on the lock member and the fastening protrusion formed on the housing, and it is possible to maintain the firm fastening force.

In addition, it is possible to obtain an effect that the fastening of the housing on both sides is possible by using one fastening member, and the pressure tightening is very easy.

1 is an exploded perspective view of a one-touch type reinforcing coupler of the present invention.
2 is an exploded perspective view of the one-touch type reinforcing coupler of the present invention.
3 is a cross-sectional view of the one-touch type reinforcing coupler of the present invention.
4 is another embodiment of the one-touch type reinforcing coupler of the present invention.
5 is another embodiment of the one-touch type reinforcing coupler of the present invention.
Fig. 6 is another embodiment of the one-touch type reinforcing coupler of the present invention. Fig.
Fig. 7 is a state in which reinforcing bars are inserted into the one-touch type reinforcing coupler of the present invention. Fig.
Fig. 8 is a view showing a fastening state of the housing of the one-touch type reinforcing coupler of the present invention. Fig.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention 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 the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view of the one-touch type reinforcing coupler of the present invention, FIG. 2 is an assembled perspective view of the one-touch type reinforcing coupler of the present invention, and FIG.

As shown in FIGS. 1 to 3, the one-touch type reinforced coupler 1 of the present invention includes locking members 100 and 100 ', diaphragms 200 and 200', and housings 300 and 300 ' .

Here, the lock members 100 and 100 'are formed in the form of a tube through which reinforcing bars (not shown in the drawings) penetrate. On the outer circumferential surface thereof, an outer inclined surface (110), and a pair of opposite sides thereof constitute a pair.

The locking members 100 and 100 'are provided with locking projections 121 and 121' which are formed on the inner peripheral surface of the locking members 100 and 100 so as to protrude toward the center. The locking protrusions 121 and 121 ' 100) 100 ', and a straight line portion facing the inner circumferential surface is formed repeatedly so as to be able to engage with the projections of the reinforcing bars.

At this time, it is preferable that each of the lock protrusions 121 and 121 'preferably has a ratio corresponding to the interval of the nodule protrusions of the reinforcing bars. For example, the lock protrusions 121 and 121' And the like.

The lock members 100 and 100 'are provided at its rear end with diaphragm coupling grooves 130 and 130' to which the diaphragms 200 and 200 'for closing the rear ends of the respective lock members 100 and 100' ) Constitute a step.

The locking members 100 and 100 'are formed by dividing the portions corresponding to the outer inclined surface 110 into three portions with a space 122 between the pressing members 120 and 120' And the lock protrusions 121 and 121 'are formed on the inner circumferential surface of each of the pressing members 120 and 120'.

The pressing members 120 and 120 'further include at least one or more than one row of elastic member inner grooves 129 on the outer periphery of the rear end thereof. The elastic member inner grooves 129 are opened to one side, The elastic member 128 of any one of the circular rings or springs is inserted into the elastic member 128 so that each of the pressing members 120 and 120 'is constantly compressed to have a compressive elastic force.

The diaphragms 200 and 200 'are coupled to the diaphragm coupling grooves 130 formed at the rear ends of the respective lock members 100 and 100' to form a boundary of the side lock members 100 and 100 ' To support the rear end of the reinforcing bars to block further entry.

Each of the lock members 100 and 100 'is formed in a pair of both sides of the housing 300 and 300' in the form of a through-pipe member into which the lock members 100 and 100 ' Are inserted, and both sides are configured to be coupled to each other.

At this time, each of the housings 300 and 300 'has an inner circumferential surface formed as a supporting sloping surface 310 corresponding to the outer sloping surface 110 of each of the locking members 100 and 100' When the pressing members 120 and 120 'are opened and the reinforcing bars are coupled to the locking members 100 and 100' while the both side locking members 100 and 100 ' 120 ', respectively.

As shown in FIGS. 1 to 3, first, the rear end opposing sides of the two side housings 300 and 300 'are connected to each other at one side The female threaded portion 320 is formed on the inner circumferential surface of the housing 300.

The housing 300 'of the other side is formed with a protruding male threaded portion 320' which is inserted into the female threaded portion 320.

That is, the two side housings 300 and 300 'are configured to be fastened to each other by the fastening force of the female threaded portion 320 and the male threaded portion 320'.

4, the male threaded portions 330 and 330 'are formed on the outer circumferential surfaces of the respective housings 300 and 300', respectively, and the male threaded portions 330 and 330 ' So as to form an opposite helical direction.

A tubular fastening member 400 to be fastened together with both the male threaded portions 330 and 330 'is formed.

At both sides of the inner circumferential surface of the fastening member 400, female threaded portions 430 and 430 'are formed on opposite sides of the fastening member 400 so as to be fastened to the opposite male threaded portions 330 and 330' ).

That is, the two side housings 300 and 300 'are fastened to both sides of the fastening member 400, so that when the fastening member 400 is rotated only, the side housings 300 and 300' As shown in FIG.

On the other hand, when the two side housings 300 and 300 'using the fastening member 400 are fastened as described above, it is possible to tighten the fasteners more tightly.

5, the external inclined surface 110 corresponding to each of the pressing members 120 and 120 'of the lock members 100 and 100' is formed in the longitudinal direction along the external inclined surface 110 The guide groove 125 is formed in the inner bottom surface of the guide groove 125. The guide groove 125 has a plurality of serration-like engagement protrusions 126).

The guide protrusions 315 are formed on the supporting slopes 310 of the two housings 300 and 300 'to be engaged with the guide grooves 125. The guide protrusions 315 are provided with the locking protrusions 126, And a plurality of locking projections 316 in which the inclined portions are repeatedly formed.

That is, when the two side housings 300 and 300 'are fastened to the fastening member 400, the guide protrusion 315 slides in the guide groove 125 to prevent idling during fastening, The base 316 is hooked on the latching jaw 126 at some point to prevent loosening of the coupling member 400 and the housings 300 and 300 '.

In the meantime, in constructing the one-touch type reinforcing coupler 1 of the present invention, it is possible to reinforce the divided pressing members 120 and 120 '. For this purpose, as shown in FIG. 6, Reinforcing bar insertion grooves 127 and 127 'may be formed at the rear ends of the locking members 100 and 100', respectively, corresponding to the respective pressing members 120 and 120 '.

The reinforcing bar 140 may further include reinforcing bars 140 inserted into the reinforcing bar insertion grooves 127 and 127 'corresponding to the two side housings 300 and 300'.

That is, the reinforcing rod 140 is inserted into each of the pressing members 120 and 120 'on both sides in the process of connecting the two side housings 300 and 300', so that the pressing members 120 and 120 ' So that it is possible to prevent damage when an external force is applied to each of the pressing members 120 and 120 'due to the combination of the reinforcing bars.

Hereinafter, the operation of the one-touch type reinforced coupler of the present invention having the above structure will be described in detail with reference to the accompanying drawings.

Referring to FIGS. 1 to 3, when the one-touch type reinforcing coupler 1 according to the present invention is assembled, as shown in FIG. 7, the diaphragm coupling grooves 100 formed at the rear ends of the respective locking members 100, 100 ' The rear ends of the lock members 100 and 100 'may be closed by inserting the diaphragms 200 and 200'

Each of the locking members 100 and 100 'may then be inserted into the inside of the two side housings 300 and 300' and inserted from the rear end of the housings 300 and 300 '.

Then, the locking members 100 and 100 'are engaged with the two side housings 300 and 300', and binding force of the locking members 100 and 100 'on both sides is given.

When the two side housings 300 and 300 'are engaged with each other, the female screw portion 320 and the male screw portion 320' are formed on the side housings 300 and 300 ' Will be possible by fastening the female screw part 320 and the male screw part 320 '.

4 and 5, at the time of constructing the fastening member 400, the housing 300 (300 ') on both sides is simultaneously pulled and fastened by rotation of the fastening member 400 in one direction (fastening direction) The guide protrusions 315 formed on the supporting slopes 310 of the respective housings 300 and 300 'can be inserted into the locking members 100 and 100' The two housings 300 and 300 'are prevented from idling during the fastening operation by being engaged with the guide grooves 125 formed in the pressing members 120 and 120' of the pressing members 120 and 120 '.

When the two side housings 300 and 300 'are fastened to each other as described above, the reinforcing bars are not completely joined to each other but are formed with predetermined gaps, so that the locking members 100 The pressing members 120 and 120 'of the pressing member 120'.

Thus, when the rebar is assembled using the one-touch type reinforced coupler 1 assembled as described above,

First, each of the reinforcing bars 10 and 10 'is inserted from both ends of the respective housings 300 and 300', and the locking members 100 (100 ') inserted into the respective housings 300 and 300' The inserted reinforcing bars 10 and 10 'are inserted into the pressing members 120 and 120' of the pressing members 120 and 120 ' do.

The nodule protrusion 11 of the inserted reinforcing bars 10 and 10 'interferes with the lock protrusions 121 and 121' formed on the inner circumferential surface of each of the pressing members 120 and 120 ' 121 'by the elastic force of the elastic member 128 of the pressing members 120 and 120' at the time of inserting the reinforcing bars 121 and 121 ' 10 of the reinforcing bars 10 and 10 and the nodule 11 of the reinforcing bars 10 and 10 exceeds the locking protrusions 121 and 121 ' At this time, the resilient force is applied to each of the pressing members 120 and 120 'by the elastic member 128, and it is prevented that the pressing force is released.

The reinforcing bars 10 and 10 'are supported by the diaphragms 200 and 200' closing the rear ends of the locking members 100 and 100 ', respectively.

Thereafter, the housing 300 and 300 'are completely fastened in a state where the reinforcing bars 10 and 10' are engaged with the locking protrusions 121 and 121 ' Referring to FIG. 3, the fastening member 400 may be fastened using the female screw 320 and the male screw 320 ', or fastened using the fastening member 400 with reference to FIG.

That is, when the two side housings 300 and 300 'are fastened together as shown in FIG. 8, the supporting slopes 310 formed on the inner circumferential surfaces of the housings 300 and 300' contact the locking protrusions 121 and 121 ' The locking protrusions 121 and 121 'of the locking members 100 and 100' press the outer circumferential surface of the reinforcing bars 10 and 10 ' ) 121 'of the reinforcing bars 10 and 10' are tightly fixed to the reinforcing bars 10 and 10 '.

 4, when the fastening member 400 is used, the guide projections 315 of the housings 300 and 300 'are pressed against the pressing members 300' The locking protrusions 316 are engaged with the locking protrusions 126 when the locking protrusions 314 are slid along the guide grooves 125 of the locking members 120 and 120 ' The housing 300 and 300 'can be prevented from being loosened from the housing 400 and the reinforcing bars 10 and 10' can be firmly fixed.

6, when the one-touch type reinforcing coupler 1 of the present invention is applied, a reinforcing rod 140 connecting the pressing members 120 and 120 'of the side rocking members 100 and 100' It is possible to internally reinforce the pressing members 120 and 120 ', and it is possible to prevent the pressing members from being broken even when the reinforcing bars 10 and 10' are assembled or an external force is applied do.

As described above, the one-touch type reinforced coupler according to the present invention is structurally simplified so that its handling is very convenient and easy to assemble. Particularly, it is possible to support both side housings in the state that the reinforcing bars are installed, .

100, 100 ': Lock member 110: Outer slope surface
120, 120 ': pressing member 121, 121'
122: spacing space 125: guide groove
126: Jaws 127 and 127 ': reinforcement rod insertion groove
128: elastic member 129: elastic member inner groove
130: diaphragm coupling groove 140: reinforcement rod
200,200 ': diaphragm
300, 300 ': housing 310: supporting slope
315: guide projection 316:
320: Female thread portion 320 ': Male threads
330, 330 ': male thread portion 400: fastening member
430,430 ': Female thread portion

Claims (5)

delete delete The outer peripheral surface is formed with an outer inclined surface 110 having an inclination extending from the front end to the rear end of the reinforcing bar. The inner peripheral surface has an inclined portion facing the center and a straight line portion facing the inner peripheral surface. The lock protrusions 121 and 121 'of the multiple means for projecting the protrusions are formed so as to extend from the front end to the rear end, and a pair of opposing locking members 130 having a step- 100) (100 ');
Diaphragms 200 and 200 'which are inserted into the diaphragm coupling grooves 130 of the lock members 100 and 100' and support the front ends of the boundaries and the reinforcing bars of the side lock members 100 and 100 '; And
And a supporting sloping surface 310 corresponding to the outer sloping surface 110 of the locking members 100 and 100 'is formed on the inner circumferential surface and one female housing 320 And the other housing 300 'is formed with a protruding male threaded portion 320' which is inserted into the female threaded portion 320 so that the locking member (not shown) is fastened by the fastening force of the female threaded portion 320 and the male threaded portion 320 ' 100 ', 100', and both sides of the housing 300, 300 'supporting the outer inclined surface 110 of the lock member 100' when the reinforcing bar is engaged,
The locking members 100 and 100 '
A portion corresponding to the outer inclined surface 110 is divided into three portions with a space 122 therebetween and constitutes a plurality of pressing members 120 and 120 '
An elastic member inner groove 129 is formed on the outer periphery of the rear end of the pressing members 120 and 120 'and an elastic member 128, which applies compression elastic force to each of the pressing members 120 and 120'Lt; / RTI >
The two side housings 300 and 300 '
(330, 330 ') are formed on the outer circumferential surface of each of the first and second protrusions,
And a fastening member 400 having internal thread portions 430 and 430 formed in opposite directions to each other so that the male threaded portions 330 and 330 'are fastened to both sides of the inner peripheral surface of the fastening member 400, The housings 300 and 300 'on both sides are simultaneously clamped by the rotational force,
On the external inclined surface 110 corresponding to each of the pressing members 120 and 120 'of the lock members 100 and 100'
The guide groove 125 is formed in the longitudinal direction and a plurality of serration-like engaging protrusions 126 are continuously formed inside the guide groove 125 so that the neck portion and the straight portion are repeated.
On the supporting slopes 310 of the two side housings 300 and 300 '
The guide protrusion 315 is further coupled to the guide groove 125. The guide protrusion 315 is provided with a plurality of locking protrusions 316 in which a straight line portion to be engaged with the locking protrusion 126 and a tilting portion are repeated Respectively,
When the housing 300 and 300 'are fastened to the fastening members 400, the fastening protrusions 316 are hooked on the fastening protrusions 126 to prevent the housings 300 and 300' from being loosened. One-touch type reinforced coupler.
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