KR102481775B1 - Steel bar coupler and coupling method thereof - Google Patents

Abstract

According to the present invention, a T-shaped coupler includes: a backward coupler (110) which couples a lateral steel rod (10) installed in a lateral direction and a forward and backward steel bar (20) installed forward and backward and is penetrated by the lateral steel rod (10); a coupling unit (120) which is coupled in a structure of being inserted into a front surface of the backward coupler (110); and a front coupler (130) in which a front portion of the coupling unit (120) is inserted into a back surface of the front coupler to be mutually coupled. The forward and backward steel bar (20) is inserted and coupled inward and backward from a front surface of the front coupler (130). After the lateral steel rod (10) and the forward and backward steel bar (20) are coupled, a filler material (200) is filled in an inward space unit (S) formed by the backward coupler (110), the coupling unit (120), and the front coupler (130). In the case, the T-shaped coupler according to the present invention has a structure in which the backward coupler (110), the coupling unit (120), and the front coupler (130) are coupled as shown in fig. 1, and the filler material (200) is filled in the inward space unit (S) after the lateral steel rod (10) and the forward and backward steel bar (20) are coupled as shown in fig. 9, thereby improving a coupling force of the coupler and the steel bar and securing structural safety for vibrations and shocks. In particular, the present invention has an effect of reducing shaking and vibrations of the lateral steel rod (10) and the forward and backward steel bar (20) coupled by the coupler by the filler material (200) filled in the inward space unit (S).

Description

T-type coupler and T-type coupler coupling method {STEEL BAR COUPLER AND COUPLING METHOD THEREOF}

The present invention relates to the field of construction, and more particularly, to a T-type coupler and a method for coupling the T-type coupler.

Tension members such as steel rods, reinforcing bars, and bars are mutually coupled in various shapes according to the shape of the structure. The coupling of the tension member is to secure sufficient pulling force and coupling force by forming an overlapping portion or bending an end portion in a ring shape. However, it is difficult to arrange or install a tension member in order to secure coupling force and pulling force for a tension member having a structure such as a 'T' shape. This is because the end of the tension member installed in the longitudinal direction is coupled to the central portion (or inner region) instead of the end of the tension member installed in the horizontal direction.

Therefore, in most cases, a coupler is used for a tension member having a 'T' type structure, but there is a problem in that coupling is not easy and the tension member is damaged due to vibration of the coupler.

The above-mentioned conventional technical configuration, name, and drawing number are used only for the description of the prior art.

Korean Registered Patent No. 10-1898853 'Pile fastening method using a pile coupler' relates to a pile coupler and a pile fastening method using the same, and a pile installed to support a structure such as a photovoltaic power plant device so as to be driven into the ground It is about. More specifically, the pile coupler, a semi-circular plate portion having a semi-circular cross section; fastening flat plates protruding outwardly of the semi-circular plate portion and having a plurality of fastening grooves along the longitudinal direction; A pair is provided, including, the semi-disc plate portion, an upper semi-disc plate portion formed to a certain length; a lower semi-disc portion extending downward from the upper semi-disc portion in a longitudinal direction and having a predetermined length; a support plate formed horizontally by protruding from the center of the semicircle of the inner wall of the semicircular plate portion to separate the upper semicircular plate portion and the lower semicircular plate portion; It is configured to include, and in the upper semi-disc plate part and the lower semi-disc plate part, when the pile coupler is fastened, compression protrusions are formed to increase the bonding force by compressing the outer circumferential surface of the pile, and the compression protrusions are the upper semi-disc plate part and the lower semi-disc plate part. It is formed of a protrusion protruding inward along the semicircular shape of the wall, and the pile coupler is provided with a pair to connect the pile by coupling the fastening means to each other through the fastening groove formed on each fastening plate.

Korean Patent Registration No. 10-2018993 'Method of manufacturing and fastening a coupler for connecting reinforcing bars' relates to a method of manufacturing and fastening a coupler for connecting reinforcing bars, and is a hollow body-shaped fixing member having thread 112 formed at both ends. (110) and; Disc-shaped bases 130 each inserted through hollow holes formed at both ends of the fixing member 110; It is located on the outer side of the base 130 and has a hollow body shape on which an inclined surface whose diameter decreases toward the outer side is formed, and a pyeonche 140 composed of a plurality of divided pieces divided in the circumferential direction; A sleeve 150 having a hollow body shape screwed to the screw thread 112 of the fixing member 110 and having an inclined surface formed therein to correspond to the inclined surface of the knitting body 140; and the base 130 and the knitting body. A spring 160 is mounted between 140 and is a reinforcing bar joint coupler used to connect reinforcing bar members. A nut hole 111 penetrating into the inside is formed on the outer periphery of the fixing member 110, and the pair A pair of pressing members 180 are inserted between the bases 130 of, but a wedge 120 is inserted between the pair of pressing members 180, and the nut hole of the fixing member 110 ( When the insertion bolt 170 is inserted through 111), the wedge 120 moves the pressing members 180 located on both sides in both directions, so that the body 140 together with the base 131 is a sleeve with a narrow internal space ( 150) to grip the outer periphery of the reinforcing bar inserted through the hollow hole of the sleeve 150, the present invention is easy to adjust the fastening force between round bar-shaped members such as reinforcing bars or pipes, and to prevent the initial slip phenomenon It can be prevented, so the residual deformation meets the performance standard, and after fastening, it is easy to disassemble or release as needed, so the joint time can be shortened, and there is a remarkable effect that the knitted body can be easily and precisely manufactured.

Republic of Korea Patent Registration No. 10-1847354 'Method of manufacturing a coupler for connecting reinforcing bars' is a body in which threads are formed on the inside of both ends in a hollow body shape, and screwed to the body in the shape of a hollow body, but the inner circumference is gradually When a reinforcing bar is inserted into the hollow hole of the fastener through the hollow hole of the cap, it consists of a cap having a small inner diameter and a fastener located inside the cap, the outer periphery of which is inclined to correspond to the inner periphery of the cap. , It relates to a manufacturing method of a coupler for connecting reinforcing bars in which a fastener presses a reinforcing bar by tightening a cap screwed to the body, and more specifically, the body has an inner space at the center so that the reinforcing bars inserted at both ends do not collide with each other. In which a diaphragm is formed, the diaphragm is made of a metal material in a disk shape having the same diameter as the inner diameter of the body; Forming the disk-shaped metal material into a hemispherical shape; placing the metal material molded into the hemispherical shape at the inner center of the body; Inserting pressing members into both ends of the body to compress the hemispherical metal material from both sides to form a disc shape again; characterized in that the edge of the metal material is pressed and fastened to the inner periphery of the body to form a diaphragm. It relates to a method of manufacturing a coupler for a reinforcing bar joint.

Republic of Korea Registered Patent No. 10-1898853 'Pile fastening method using pile coupler' Republic of Korea Patent No. 10-2018993 'Manufacturing and fastening method of coupler for rebar joint' Republic of Korea Patent Registration No. 10-1847354 'Method of manufacturing a coupler for connecting reinforcing bars'

The present invention provides a T-type coupler and a method for coupling the T-type coupler, which can prevent vibration and impact of the tension member by filling the hollow inside the coupler as well as facilitating coupling of the tension member.

In order to solve the above problems, the T-type coupler according to the present invention combines the side steel rods 10 installed in the lateral direction and the front and rear steel rods 20 installed in the front and rear directions, the rear through which the side steel rods 10 penetrate. coupler 110; A coupling part 120 coupled to a structure inserted into the front of the rear coupler 110; A front coupler 130 in which the front part of the coupling part 120 is inserted into the rear surface and coupled to each other, and the front and rear steel rods 20 are fitted from the front side of the front coupler 130 in an inward and rearward direction, After the side steel bars 10 and the front and rear steel bars 20 are coupled, the inner space portion S formed by the rear coupler 110, the coupling part 120, and the front coupler 130 has a filler material. (200) is charged.

It is preferable that a rear coupler groove 110S is formed on an inner surface of the rear coupler 110 along the front-back direction so that the filling material 200 can be easily filled inside the rear coupler 110 .

In order to easily fill the inside of the coupling portion 120 with the filler 200, it is preferable that coupling portion grooves 120S are formed on the inner surface of the coupling portion 120 along the front-back direction.

It is preferable that front coupler grooves 130S are formed on the inner surface of the front coupler 130 along the front-back direction so that the filling material 200 can be easily filled inside the front coupler 130 .

The front and rear steel rods 20 are inserted into the front of the front coupler 130, the rear part is located in the inner space S, and flows forward by the coupling wedge 131 coupled to the front coupler 130. It is desirable that it is fixed rather than not.

Preferably, a spring 132 is coupled to the inside of the front coupler 130 and the rear of the coupling wedge 131 to move the coupling wedge 131 in the forward and backward directions.

The outer surface of the rear coupler 110, the coupling part 120, and the front coupler 130 is preferably coupled with a coating cap 300 made of rubber.

The coating cap 300 is formed by combining the rear coating cap 310 and the front coating cap 320, and the back side of the rear coating cap 310 has a '+' shape so that the filler 200 is inserted. It is preferable that a cutout 310h1 is formed, and a '+' shaped front cutout 320h2 is formed on the front surface of the front coating cap 320 so that the front and rear steel rods 20 are fitted.

It is preferable that a filler ejection hole 320h1 is formed on the front surface of the front coating cap 320 to confirm that the filler 200 is completely filled in the inner space portion S.

It is preferable that the upper surface of the rear coupler 110 has a structure in which a filling hole in which the filler 200 is filled is formed or an upper surface is open.

The width D1 of the rear coupler groove portion 110S, the width D2 of the coupler groove portion 120S, and the width D3 of the front coupler groove portion 130S are preferably D1<D2<D3. Do.

T-type coupler coupling method according to an embodiment of the present invention includes a coupler coupling step of coupling the rear coupler 110, the coupling part 120, and the front coupler 130; A coating cap coupling step of coupling the rear coating cap 310 and the front coating cap 320 to the T-type coupler; A steel bar coupling step of combining the side steel bars 10 and the front and rear steel bars 20; A filler injection step of filling the inner space (S) with the filler 200 through the rear cutout (310h1); and a filler injection completion step of confirming that the filler 200 is ejected through the filler ejection hole 320h1 and stopping the filler injection step.

Since the T-type coupler according to the present invention is filled with a filler inside, the coupling force between the coupler and the steel bar is improved, and the impact of the coupler and the steel bar located inside the coupler is mitigated, as well as preventing vibration from external impact. In addition, since the filler is filled inside the coupler, corrosion due to external moisture intrusion can be prevented.

1 is a view showing that a rear coupler, a coupling part, and a front coupler are coupled according to an embodiment of the present invention
2 is a view showing that the side steel bars and the front and rear steel bars are coupled after the rear coupler, coupling portion, and front coupler are coupled according to an embodiment of the present invention
3 is a T-type coupler diagram according to an embodiment of the present invention
Figure 4 is a view showing the front shape of the front coating cap according to an embodiment of the present invention
5 is a view showing the rear shape of the rear coating cap according to an embodiment of the present invention
6 is a view showing that a rear coupler groove is formed according to an embodiment of the present invention
7 is a view showing that a coupling part groove is formed according to an embodiment of the present invention
8 is a view showing that the front coupler groove portion is formed according to an embodiment of the present invention
9 is a view showing that the filling of the filler is completed in the inner space according to an embodiment of the present invention
10 is a perspective view of the coating cap according to an embodiment of the present invention
11 is a view showing that the filler is gradually filled from the rear according to an embodiment of the present invention.
12 is a view showing that the front region of the inner space is filled with a filler according to an embodiment of the present invention.
13 is a view showing that the filler is being filled up to the rear area of the inner space according to an embodiment of the present invention.
14 is a view showing that filling of the filler according to an embodiment of the present invention is completed;
15 is a perspective view of a rear coupler according to an embodiment of the present invention
16 is a perspective view of a coupling unit according to an embodiment of the present invention
17 is a perspective view of a front coupler according to an embodiment of the present invention
18 is a combined perspective view showing that the front coating cap and the rear coating cap are coupled according to an embodiment of the present invention
19 is a perspective view showing that a front coating cap and a rear coating cap are coupled to a T-type coupler according to an embodiment of the present invention
20 is a perspective view showing that a front coating cap is coupled to a T-type coupler according to an embodiment of the present invention
21 is a perspective view showing that both a front coating cap and a rear coating cap are coupled to a T-type coupler according to an embodiment of the present invention
22 is a representative drawing of Korean Patent Registration No. 10-1898853
23 is a representative diagram of Korean Registered Patent No. 10-2018993
24 is Korean Patent Registration No. 10-1847354 'Method of manufacturing a coupler for connecting reinforcing bars'

An embodiment of a T-type coupler and a T-type coupler coupling method according to the present invention will be described in detail with reference to the accompanying drawings, and in the description with reference to the accompanying drawings, the same or corresponding components are assigned the same reference numerals. And redundant descriptions thereof will be omitted.

In addition, terms such as first and second used below are only identification symbols for distinguishing the same or corresponding components, and the same or corresponding components are not limited by terms such as first and second. no.

In addition, coupling does not mean only the case of direct physical contact between each component in the contact relationship between each component, but another configuration intervenes between each component so that the component is in the other configuration. It should be used as a concept that encompasses even the case of contact with each other.

Hereinafter, a T-type coupler and a T-type coupler coupling method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The T-type coupler according to the present invention combines the lateral steel bar 10 installed in the lateral direction and the front and rear steel bar 20 installed in the front and rear direction, the rear coupler 110 through which the side steel bar 10 penetrates; Coupling part 120 coupled to a structure inserted into the front of the rear coupler 110; A front coupler 130 in which the front part of the coupling part 120 is inserted into the rear surface and coupled to each other; including, the front and rear steel rods 20 are fitted in the inner rear direction from the front of the front coupler 130, and the side steel rods ( 10) and the front and rear steel bars 20 are coupled, the inner space portion S formed by the rear coupler 110, the coupling portion 120, and the front coupler 130 is filled with the filler 200.

In this case, the T-type coupler according to the present invention has the structure shown in FIG. 1, the rear coupler 110, the coupling part 120, and the front coupler 130 are combined, and the side steel bar 10 and the front and rear steel bar 20 are After the coupling, as shown in FIG. 9, the filler 200 is filled in the inner space (S) to improve the coupling force between the coupler and the steel bar, and to secure structural safety against vibration and impact.

In particular, there is an effect of damping the shaking and vibration of the side strong bar 10 and the front and rear strong bar 20 coupled to the coupler by the filler 200 filled in the inner space portion S.

In order to easily fill the inside of the rear coupler 110 with the filler 200, it is preferable that the rear coupler groove 110S is formed on the inner surface of the rear coupler 110 along the front-back direction.

The rear coupler groove portion 110S is formed in the structure shown in FIG. 6, which is to facilitate the filling of the filler 200 to be filled from the rear to the front.

It is preferable that coupling part grooves 120S are formed on the inner surface of the coupling part 120 along the front-back direction so that the filling material 200 can be easily filled inside the coupling part 120 .

It is preferable that front coupler grooves 130S are formed on the inner surface of the front coupler 130 along the front and rear directions so that the filling material 200 is easily filled inside the front coupler 130 .

The coupling part groove portion 120S and the front coupler groove portion 130S are formed as shown in FIGS. 7 and 8. As D1<D2<D3, the filler 200 that is filled in the front is tightly filled in the inner space portion (S).

The front and rear steel bars 20 are inserted into the front of the front coupler 130, the rear portion is located in the inner space portion (S), and is fixed without moving forward by the coupling wedge 131 coupled to the front coupler 130 it is desirable

It is preferable that a spring 132 is coupled to the inside of the front coupler 130 and the rear of the coupling wedge 131 to move the coupling wedge 131 in the forward and backward directions.

The front and rear steel rods 20 are inserted and coupled to the front of the front coupler 130 in the same structure as shown in FIG. After fitting, it is fixed without falling forward.

The outer surface of the rear coupler 110, the coupling part 120, and the front coupler 130 is preferably coupled with a coating cap 300 made of rubber.

In this case, the coating cap 300 as shown in FIG. 18 is coupled to the outer surface of the T-type coupler made by combining the rear coupler 110, the coupling portion 120, and the front coupler 130.

The coating cap 300 prevents moisture from penetrating into the T-type coupler to prevent corrosion of the T-type coupler.

The coating cap 300 is formed by combining the rear coating cap 310 and the front coating cap 320, and the back side of the rear coating cap 310 has a '+' shaped rear incision so that the filler 200 is inserted ( 310h1) is formed, and the front surface of the front coating cap 320 is preferably formed with a '+' shaped front cutout 320h2 so that the front and rear steel rods 20 are fitted.

The coating cap 300 is divided into a rear coating cap 310 and a front coating cap 320 so as to be easily installed in the T-type coupler and combined.

At this time, it is preferable that a filler ejection hole 320h1 is formed on the front surface of the front coating cap 320 to confirm that the filler 200 is completely filled in the inner space portion S.

The filler ejection hole (320h1) is for confirming the charging completion state of the filler 200 filled in the inner space portion (S), and confirms the filling completion by ejecting the filler 200 through the filler ejection hole (320h1). .

The upper surface of the rear coupler 110 preferably has a structure in which a filling hole in which the filler 200 is filled is formed or the upper surface is open.

At this time, the rear coupler 110 may have an insertion hole for inserting the filler 200 on the rear surface, or may be a cylindrical column with the entire rear surface open.

The width D1 of the rear coupler groove 110S, the width D2 of the coupler groove 120S, and the width D3 of the front coupler groove 130S are preferably D1<D2<D3.

T-coupler coupling method according to an embodiment of the present invention includes a coupler coupling step of coupling the rear coupler 110, the coupling unit 120, and the front coupler 130; Coating cap coupling step of coupling the rear coating cap 310 and the front coating cap 320 to the T-type coupler; A steel bar coupling step of combining the side steel bars 10 and the front and rear steel bars 20; Filler injection step of filling the inner space (S) with the filler 200 through the rear incision (310h1); and a filler injection completion step of confirming that the filler 200 is ejected through the filler ejection hole 320h1 and stopping the filler injection step.

S: inner space 10: side steel bar
20: front and rear steel bar 110: rear coupler
110S: rear coupler groove part 120: coupling part
120S: coupling groove 130: front coupler
130S: front coupler groove 131: coupling wedge
132: spring 200: filler
310: coating cap 310: rear coating cap
310h1: rear incision 320: front coating cap
320h1: Filler ejection hole 320h2: Front incision

Claims (12)

As a T-type coupler that combines the lateral steel bar 10 installed in the lateral direction and the front and rear steel bar 20 installed in the front and rear direction,
a rear coupler 110 through which the side steel bar 10 passes;
A coupling part 120 coupled to a structure inserted into the front of the rear coupler 110;
A front coupler 130 inserted into the rear surface of the coupling part 120 and coupled to each other; includes,
The front and rear steel bars 20 are
It is fitted from the front of the front coupler 130 to the inside and rearward,
After the side steel bars 10 and the front and rear steel bars 20 are coupled, the inner space portion S formed by the rear coupler 110, the coupling part 120, and the front coupler 130 has a filler material. (200) is charged,
A rear coupler groove 110S is formed on the inner surface of the rear coupler 110 along the front-back direction so that the filling material 200 is easily filled inside the rear coupler 110,
Coupling part grooves 120S are formed on the inner surface of the coupling part 120 along the front-back direction so that the filler 200 is easily filled in the coupling part 120,
A front coupler groove 130S is formed on the inner surface of the front coupler 130 along the front and rear directions so that the filler 200 is easily filled inside the front coupler 130,
The front and rear steel rods 20 are inserted into the front of the front coupler 130 so that the rear portion is located in the inner space S,
It is fixed without moving forward by the coupling wedge 131 coupled to the front coupler 130,
A spring 132 is coupled to the inside of the front coupler 130 and the rear of the coupling wedge 131 to move the coupling wedge 131 in the forward and backward directions,
The outer surfaces of the rear coupler 110, the coupling part 120, and the front coupler 130 are coupled with a coating cap 300 made of rubber,
The coating cap 300 is
The rear coating cap 310 and the front coating cap 320 are formed by combining,
A '+' shaped rear cutout 310h1 is formed on the rear surface of the rear coating cap 310 so that the filler 200 is inserted,
T-type coupler, characterized in that the front surface of the front coating cap 320 is formed with a '+' shaped front cutout (320h2) so that the front and rear steel rods 20 are fitted.
delete delete delete delete delete delete delete According to claim 1,
On the front of the front coating cap 320
A T-type coupler, characterized in that a filler ejection hole (320h1) is formed to confirm that the filler 200 is completely filled in the inner space portion (S).
According to claim 9,
The T-type coupler, characterized in that the upper surface of the rear coupler 110 has a structure in which a filling hole in which the filler 200 is filled is formed or the upper surface is open.
According to claim 10,
The width D1 of the rear coupler groove portion 110S, the width D2 of the coupler groove portion 120S, and the width D3 of the front coupler groove portion 130S are characterized in that the width is D1<D2<D3 T-type coupler to be.
As a T-type coupler coupling method of claim 11,
A coupler coupling step of coupling the rear coupler 110, the coupling part 120, and the front coupler 130;
A coating cap coupling step of coupling the rear coating cap 310 and the front coating cap 320 to the T-type coupler;
A steel bar coupling step of combining the side steel bars 10 and the front and rear steel bars 20;
A filler injection step of filling the inner space (S) with the filler 200 through the rear cutout (310h1);
A T-type coupler coupling method comprising a; filler injection completion step of confirming that the filler 200 is ejected into the filler ejection hole (320h1) and stopping the filler injection step.

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