WO2018190536A1 - Reinforcing bar joint coupler for preventing intial slip - Google Patents

Abstract

The present invention relates to a reinforcing bar joint coupler, which is used for joining round bar-shaped members such as reinforcing bars or pipes, and comprising: a hollow body-shaped fixing member having threads formed at both ends thereof; disc-shaped bases respectively inserted through the hollow holes formed at both ends of the fixing member; piece bodies, which is in a hollow body-shaped having an inclination surface decreasing in diameter towards the outside, positioned outside of the bases and composed of a plurality of division pieces divided in the circumferential direction; sleeves, which are in a hollow body-shaped, screw-coupled to the threads of the fixing member and having inclination surfaces formed inside thereof so as to correspond to the inclination surfaces of the piece bodies; and springs mounted between the bases and the piece bodies, and more specifically, to a reinforcing bar joint coupler in which: a nut hole penetrating into the outer circumference of the fixing member is formed; one pair of pressing members are inserted between the one pair of bases; and a wedge is inserted between the one pair of pressing members such that, when an insertion bolt is inserted through the nut hole of the fixing member, the wedge moves the pressing members positioned at both sides thereof in both side directions and thus the piece bodies move together with the bases in the direction of the sleeve having a narrow inner space, thereby gripping the outer circumferences of the reinforcing bars inserted through the hollow holes of the sleeve. Therefore, the present invention includes remarkable effects wherein: the fastening force between round bar-shaped members such as reinforcing bars or pipes can be easily adjusted, the initial slip phenomenon can be prevented such that the residual deformation meets the performance standards, after fastening, disassembly or release can be easily performed in accordance with circumstances such that the joining time can be shortened, and the like.

Description

Rebar Joint Coupler Prevents Early Slip

The present invention relates to a coupler for reinforcing bars used when connecting long round bar members such as pipes or reinforcing bars, and more particularly, to facilitate fastening between round bar members and to prevent initial slip. It meets this performance standard, and it relates to a coupler for reinforcing bars, which can be easily disassembled or released after being fastened.

In general, a coupler for reinforcing bars is used to connect members of long round bar shapes such as pipes or reinforcing bars. In the prior art, the connection ends of two deformed bars A are registered in a straight direction in Korean Patent Publication No. 1102531. In the reinforcing bar coupler capable of receiving the deformed bar in the side for connecting, The reinforcing bar coupler includes two coupler body is inserted into the deformed bar to form two reinforcing bar; A plurality of coupler locks slidingly coupled to the circumference of the coupler body to hold the bar of the deformed rebar to prevent the deformed bar A from falling out; Two forming springs in contact with one end of the coupler lock and joined to one side of the coupler body to give the deformed reinforcement force to be pushed backward so that the deformed reinforcement is tightly coupled to the coupler lock; A female coupler housing in which the coupler body and the coupler lock are inserted therein, and the coupler lock completely covers the coupler body so that the coupler lock is not separated from the coupler body and has a female thread formed at one side thereof; The coupler body and the coupler lock are inserted therein, and the coupler lock is formed of a male coupler housing that completely surrounds the coupler body so that a male screw is formed on one side so as not to be separated from the coupler body, and is coupled to the female coupler housing. The coupler body has a reinforcement hole in which the deformed steel is inserted in the center, the coupler lock is inserted in the longitudinal direction from the circumference, and the lock insertion opening of the same quantity as the number of the coupler locks is inserted, and one end of the forming spring is inserted. A spring insertion hole is formed to serve as a passage for contacting the coupler lock, and the lock insertion opening is formed in the lock insertion opening in which the coupler lock is placed in the longitudinal direction and slides, and the coupler lock is formed by cutting a rectangular parallelepiped diagonally. The angle of inclination cut by the couple It is the same as the inclination angle of the conical column of the body, the coupler lock and a plurality of teeth inclined in one direction so that it can be easily inserted when the bar (A1) of the deformed reinforcement in the longitudinal direction is inserted, and the lock installation jaw Lock installation projections are formed to be caught, the forming spring is composed of a disk ring-shaped spring body, and a compression protrusion of the same amount as the number of the coupler lock formed on the spring body, the spring reinforcement A circular hollow is formed to be assembled with the coupler body, and the compression protrusion has a quadrangular pillar shape to contact one end of the coupler lock to serve as a compression spring, and the female coupler housing has the coupler body therein. The hollow and the deformed rebar are the same as the outer shape of the coupler body to be inserted The reinforcing bar insertion portion to be inserted, the female socket portion into which the mail coupler housing is inserted, and a depth limiting jaw limiting the depth into which the coupler body is inserted are formed, and the female socket portion is formed with the female thread, The coupler housing has a hollow same as the outer shape of the coupling body so that the coupling body can be inserted therein, a rebar insert portion into which the deformed steel is inserted, a mail insert portion inserted into the female coupler housing; A depth limiting jaw restricting a depth into which the coupler body is inserted is formed, and a male screw is formed in the mail insertion portion, and the reinforcement insertion portion has a conical column shape whose outer diameter is larger than the inner side diameter so as to facilitate the insertion of the deformed steel. The high-strength rebar coupler, which has a branch structure, has been published.

In still another prior art, the first and second bulkheads are formed in the center of Registration Utility Model Publication No. 0458428 with a flange formed around the first and second bodies and the first and second bulkheads interposed therebetween. 2, the first and second reinforcing bars respectively formed on both sides of the body, the first and second reinforcing bars are selectively formed on the surface of the first and second reinforcing rods formed of the first and second support jaws for supporting the ring ribs First and second binding pieces for joining the first and second bars; And a fastener for coupling the first and second binding pieces, wherein the first and second partition walls of the first and second binding pieces respectively block the inside of the first and second bodies, respectively, to the outside of the first and second bodies. The semi-circular cross section does not protrude so that the ends thereof face each other and are in contact with each other. A fastening protrusion is formed on the first partition of the first binding piece, and a fastening groove is formed on the second partition of the second binding piece. Reinforcing bar coupler is characterized in that the coupling piece is coupled through the fastener is a structure that the fastening projection is fitted into the fastening groove is registered.

However, the conventional coupler for reinforcing bar joints has an initial slip phenomenon, the residual strain does not meet the performance standards, it is not easy to adjust the tightening force, it is difficult to release after fastening and the fastening work time is long.

The present invention has been made to solve the above problems, easy adjustment of the tightening force, easy to disassemble or release as necessary after fastening, rebar joint coupler to prevent the initial slip that can shorten the rebar joint time To provide.

Hollow body-shaped fixing member having a screw thread formed at both ends as a hollow body shape of the present invention; A disk-shaped base inserted into each of the hollow holes formed at both ends of the fixing member; A hollow body shape disposed on an outer side of the base and having an inclined surface that decreases in diameter toward an outer side, the knitted body comprising a plurality of divided pieces divided in a circumferential direction; A hollow body screwed to the thread of the fixing member, the sleeve having an inclined surface formed therein so as to correspond to the inclined surface of the piece; and a spring mounted between the base and the piece to form a round bar-shaped member such as a reinforcing bar or a pipe. In the coupler used to join,

A nut hole penetrating into the outer periphery of the fixing member is formed, and a pair of pressing members are inserted between the pair of bases, and a wedge is inserted between the pair of pressing members. Inserting the insertion bolt through the nut hole of the member moves the pressing members located on both sides of the wedge in both directions so that the knitting body with the base proceeds in the direction of the narrow sleeve of the inner space and is inserted into the hollow hole of the sleeve. It is characterized by holding the outer periphery.

Therefore, the present invention is easy to adjust the clamping force between the members of the rod-shaped, such as reinforcing bars or pipes, can prevent the initial slip phenomenon, the residual strain meets the performance standards, and after fastening is easy to disassemble or release as necessary There is a remarkable effect such as the time can be shortened.

1 is an exploded view of the present invention reinforcing bar coupler.

Figure 2 is a coupling of the present invention reinforcing bar coupler.

Figure 3 is a schematic view of the use state of the present invention reinforced coupler.

<Explanation of symbols for the main parts of the drawings>

100. Coupler

110. Fixing member 111. Nut hole

112. Threads

120. Wedges

130. Base 131. Protrusion

140. Web 141. Unevenness

142. Groove

150. Adjusting screw 151. Thread

160. Spring

170. Insertion Bolt 171. Wrench Groove

180. Pressure member

Hollow body-shaped fixing member 110, the thread 112 is formed at both ends as a hollow body shape of the present invention; A disc-shaped base 130 inserted through hollow holes formed at both ends of the fixing member 110; Located in the outer side of the base 130, the hollow body shape is formed in the inclined surface is reduced in diameter toward the outer side, a knitted body 140 consisting of a plurality of divided pieces divided in the circumferential direction; A hollow body screwed to the thread 112 of the fixing member 110, the sleeve 150 having an inclined surface formed therein to correspond to the inclined surface of the knitted body 140 and the base 130 and the knitted body In the reinforcement coupler for the reinforcing bar joint 140 is mounted between the spring 140 is used to connect the member of the round bar shape, such as rebar or pipe,

The outer periphery of the fixing member 110 is formed with a nut hole 112 penetrating therein, a pair of pressing member 180 is inserted between the pair of base 130, the pair of Wedges 120 are inserted between the pressing members 180, and when the insertion bolt 170 is inserted through the nut hole 112 of the fixing member 110, the pressing members 120 are located on both sides of the pressing member ( By moving the 180 in both directions, the knitting member 140 together with the base 131 proceeds toward the sleeve 150 having a narrow inner space, and grips the outer periphery of the reinforcing bar inserted through the hollow hole of the sleeve 150. Is characteristic.

A plurality of springs 160 are mounted between the base 130 and the knitted fabric 140, and projections may be provided on a surface where the base 130 and the knitted fabric 140 face each other to facilitate mounting of the springs 160. 131 and the insertion groove 142 is characterized.

And the inner periphery of the knitting body 140 is characterized in that the concave-convex 141 is formed so that friction with the outer surface of the reinforcing bar is inserted into the inner hollow portion.

In addition, one side of the insertion bolt 170 is characterized in that the wrench groove 171 is formed.

Hereinafter, described in detail by the accompanying drawings the present invention reinforcing bar coupler as follows.

1 is an exploded view of the present invention reinforcing bar coupler, Figure 2 is a coupling view of the present invention reinforcing bar coupler, Figure 3 is a schematic view of the use state of the present invention reinforcing bar coupler.

The coupler of the present invention is used for connection between the round bar members, that is, the fastening of the round bar-shaped reinforcing bar or pipe, and can prevent the initial slip phenomenon, the residual strain in accordance with the performance standards, after fastening It is easy to release and can shorten rebar time.

That is, the present invention reinforcing bar coupler 100 has a hollow body-shaped fixing member 110, the thread 112 is formed at both ends; A disc-shaped base 130 inserted through hollow holes formed at both ends of the fixing member 110; Located in the outer side of the base 130, the hollow body shape is formed in the inclined surface is reduced in diameter toward the outer side, a knitted body 140 consisting of a plurality of divided pieces divided in the circumferential direction; A hollow body screwed to the thread 112 of the fixing member 110, the sleeve 150 having an inclined surface formed therein to correspond to the inclined surface of the knitted body 140 and the base 130 and the knitted body Between the 140 is characterized in that the spring 160 is mounted.

In particular, the outer periphery of the fixing member 110 is formed with a nut hole 112 penetrating therein, a pair of pressing member 180 is inserted between the pair of base 130, the one Wedges 120 are inserted between the pair of pressing members 180.

Therefore, when the insertion bolt 170 is inserted through the nut hole 112 of the fixing member 110, the wedge 120 moves with the base member 131 by moving the pressing member 180 located at both sides in both directions. Knit 140 is to proceed in the direction of the narrow sleeve 150, the inner space is to grip the outer periphery of the reinforcing bar inserted through the hollow hole of the sleeve 150.

On the other hand, the wedge 120 is a triangular shape seen from the top of the pressing member 180 is located on both sides of the wedge 120, the side facing the wedge 120, respectively, the side of the wedge 120 The inclined surface is formed to correspond to the shape.

Both sides of the wedge 120 is formed at the same angle, it is preferably formed at 30 to 60 °.

In addition, a guide protrusion (not shown) is formed on both sides of the wedge 120 toward the top of the wedge 120, respectively, and guides are provided on the inclined surface of the pressing member 120 contacting the wedge 120. Guide lane grooves (not shown) are formed to guide the projections so as to correspond to the projections.

Therefore, the guide protrusion of the wedge 120 is stably linearly moved while being inserted into the guide lane groove formed on the inclined surface of the pressing member 120.

In addition, a plurality of springs 160 are mounted between the base 130 and the knitted fabric 140, and protrusions are provided on a surface facing the base 130 and the knitted fabric 140 to facilitate mounting of the springs 160. 131 and the insertion groove 142 is formed.

Thus, the spring 160 is not easily separated between the guide base 130 and the knitting 140.

In addition, the inner periphery of the knitted fabric 140 is characterized in that the concave-convex 141 is formed so that friction with the outer surface of the reinforcing bar inserted into the inner hollow portion is formed.

Thus, the rod-shaped member inserted into the inner space of the knitted body 140 inside the sleeve 150 can be more firmly fixed.

On the other hand, the knitting body 140 is located inside the hollow sleeve-shaped sleeve 150, the knitting body 140 is movable along the longitudinal direction of the sleeve 150 inside the sleeve 150.

An inclined surface is formed on an inner surface of the sleeve 150 so as to correspond to an inclined surface of the knitting body 140, and a screw thread 151 is formed on an inner inlet side to screw onto a thread 112 of the fixing member 110. .

Therefore, the knitting body 140 formed of the plurality of divided pieces is able to move in the longitudinal direction of the sleeve 150 inside the sleeve 150.

At this time, since the knitting body 140 is formed of a split piece, when the inner diameter is located at a small portion inside the sleeve 150, the periphery of the split piece forming the knitting body 140 is also reduced, and the inside of the sleeve 150 is formed. In the case where the diameter is located in the large portion of the inner diameter is to increase the circumference of the divided pieces forming the body 140.

That is, as the inner diameter of the knitted fabric 140 is formed to be smaller or larger as it moves from the inside of the knitted sleeve 140 to the outer or inward direction, a member having a round bar shape inserted into the knitted fabric 140 is formed. It can be fixed or moved.

In addition, a wrench groove 171 is formed on one surface of the insertion bolt 170 to rotate the insertion bolt 170 using a wrench.

Therefore, the present invention is easy to adjust the clamping force between the members of the rod-shaped, such as reinforcing bars or pipes, can prevent the initial slip phenomenon, the residual strain meets the performance standards, and after fastening is easy to disassemble or release as necessary There is a remarkable effect such as the time can be shortened.

Claims (3)

A hollow body-shaped fixing member 110 having threads 112 formed at both ends thereof as a hollow body shape; A disc-shaped base 130 inserted through hollow holes formed at both ends of the fixing member 110; Located in the outer side of the base 130, the hollow body shape is formed in the inclined surface is reduced in diameter toward the outer side, a knitted body 140 consisting of a plurality of divided pieces divided in the circumferential direction; A hollow body screwed to the thread 112 of the fixing member 110, the sleeve 150 having an inclined surface formed therein to correspond to the inclined surface of the knitted body 140 and the base 130 and the knitted body In the reinforcement coupler for the reinforcing bar joint 140 is mounted between the spring 140 is used to connect the member of the round bar shape, such as rebar or pipe, The outer periphery of the fixing member 110 is formed with a nut hole 112 penetrating therein, a pair of pressing member 180 is inserted between the pair of base 130, the pair of Wedge 120 is inserted between the pressing member 180, When the insertion bolt 170 is inserted through the nut hole 112 of the fixing member 110, the wedge 120 is moved together with the base 131 by moving the pressing member 180 located at both sides in both directions. 140 is a coupler for reinforcing bar joints to prevent the initial slip, characterized in that the inner space proceeds to the narrow sleeve 150 direction to hold the outer periphery of the reinforcing bar inserted through the hollow hole of the sleeve 150. The method of claim 1, A plurality of springs 160 are mounted between the base 130 and the knitted fabric 140, and projections may be provided on a surface where the base 130 and the knitted fabric 140 face each other to facilitate mounting of the springs 160. Rebar joint coupler for preventing the initial slip characterized in that the 131 and the insertion groove 142 is formed. The method of claim 1, The wedge 120 has a triangular shape as viewed from the top, the pressing member 180 is located on both sides of the wedge 120, respectively, the side facing the wedge 120 is in the side shape of the wedge 120 A coupler for reinforcing bar joints that prevents initial slip, which is characterized by being inclined to correspond.

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