KR102047490B1 - Nonslip one touch rebar coupler - Google Patents

Abstract

The present invention relates to a one-touch rebar coupler for slip prevention, comprising: a cylindrical main body provided with a stopping plate for restraining falling or rising of rebar, provided in an inner central portion; fastening caps respectively installed at inner upper and lower ends of the main body and each provided with a guide hole at the center having a diameter becoming larger from the inner upper end to the inner lower end; fastening members inserted into the fastening caps, each provided with a plurality of serrated protrusions formed in a vertical direction on the inner circumferential surface thereof, and having the outer circumferential surface formed to be an inclined surface that increases in diameter from an upper end to a lower end; elastic members installed between the fastening members and the stopping plate of the main body to elastically support the fastening members; ceramic sheet members installed in close contact with upper and lower ends of the stopping plate of the main body and supporting one end of each of the elastic members; and contact members installed at the center of the stopping plate of the main body and each having both ends in contact with the rebar. The fastening member has a plurality of radial slits and is provided with an uncut portion between a lower end of each slit and the lower end thereof so that the fastening member can be divided into a plurality of fastening portions. The one-touch rebar coupler is not divided into multiple pieces in an assembly process and the uncut portion is cut into multiple pieces by a fastening force in the processing of fastening rebars. With that technical configuration, one pair of rebars can be easily connected in the longitudinal direction thereof. In addition, it is possible to prevent a slip phenomenon that a part of the one-touch rebar coupler for slip prevention comes out of the lower rebar or a part of the upper rebar comes out of the one-touch rebar coupler for slip prevention after the rebar connection. Accordingly, the number of required parts can be reduced and the manufacture and assembly of the fastening members can be done easily.

Description

Non-slip One-touch Rebar Coupler {NONSLIP ONE TOUCH REBAR COUPLER}

The present invention relates to a rebar coupler that can connect a pair of reinforcing bars in the longitudinal direction, more specifically, to easily connect a pair of reinforcing bars in one-touch method, and welds the connection end of each reinforcing bar with the main body after connecting the reinforcing bar The present invention relates to an anti-slip one-touch rebar coupler that prevents the rebar from slipping out of the rebar coupler or the rebar coupler from slipping out of the rebar by the tensile force acting in the longitudinal direction on the rebar or rebar coupler.

Reinforced concrete structures are generally constructed to integrate the advantages and disadvantages of each of the reinforcing bars and concrete to complement each other, it is a structure to be able to resist the external force by placing the reinforcement in the portion where the tensile stress acts.

Concrete has a very weak resistance to tensile stress, that is, tensile strength, compared to the resistance and pressure strength to pressure stress, so cracks are generated and destroyed even with a predetermined tensile stress.

Reinforced concrete structure is to improve the durability when the external force is applied by the pressure stress on the concrete, the tensile stress on the reinforcement, respectively.

On the other hand, in recent years, the reinforcement of the reinforced concrete structure due to the increase in size and height of the reinforcing bars are also relatively extended. It is essential to connect the bars in the longitudinal direction.

The reinforcing bar connection work is carried out in a number of ways, such as overlapping the two bars reinforcement with each other and then connected by connecting the joints, gas press joints, and mechanical joints.

Lap joints are inferior in durability because they are less durable, and gas pressure joints are not stable due to cracks due to thermal deformation of the heated part.

Recently, durability, which is a disadvantage of lap joints and gas welding, is mainly used, and mechanical joints that are easy to construct are mainly used. Reinforcing bar connections, which are typical examples of mechanical joints, have been widely marketed due to many developments and studies.

However, the recently developed mechanical joint reinforcing bar connection device forms a male thread at the end of the reinforcing bar, and forms a female thread on the inner circumferential surface of the connecting device to rotate the reinforcing bar or connecting device, thereby increasing the weight or thickness of the bar. As a result, the workability is reduced, and the work time for connecting the same is increased.

Rebar couplers have been proposed to connect rebars and rebars to each other in a one-touch manner so that the available lengths can be easily extended and provide a greater coupling force than the tensile stress limit of the rebars.

In Patent Document 1 below, a first reinforcing bar is inserted into one side of a hollow cylindrical shape, and a second reinforcing bar is inserted into the other side to connect the first and second reinforcing bars, and to separate the open side and the other side. A housing having a shielding wall at its center; A mount unit inserted into one side and the other side of the housing and disposed outside the rebars; A plurality of coupling parts disposed on the mount to enable sliding transfer, the coupling parts contacting the outer circumferential surfaces of the inserted rebars to prevent the rebars from being removed; An elastic part for providing a restoring force to the sliding conveyance of the engaging part to convey that the engaging part is slid by the reinforcing bars inserted inside the mount part; A plurality of cover parts fastened to both ends of the housing to prevent the mount part and the coupling part from being removed from the housing according to the tensile force of the reinforcing bar, and the mount part guides the coupling part to reciprocally slide and move along the direction in which the reinforcing bar is inserted. A coupler for reinforcing bars, comprising: four guide members, a connecting member connecting one end of each of the guide members, and a contact member protruding in the direction of the coupling portion on the connecting member.

Rebar coupler of the Patent Document 1 is a one-touch method for inserting the rebar coupler in the first reinforcing bar, the second reinforcing bar in the rebar coupler can be easily connected to a pair of reinforcing bars in the longitudinal direction.

Republic of Korea Patent Publication No. 10-1796538 (November 06, 2017 registration)

However, the rebar coupler according to the prior art including Patent Document 1 has a slip phenomenon that the rebar couples out of the rebar coupler by the tensile force acting in the longitudinal direction on the rebar or rebar coupler after connecting the reinforcement construction or the rebar coupler slips out of the rebar. There was a problem that occurred.

Such slip phenomenon means that the concrete that is constructed around the reinforcing bars connected through the rebar coupler may be cracked or flow may occur in the support supported by the rebar.

In addition, the rebar coupler according to the prior art is installed inside the main body when manufacturing the fastening member for fastening the reinforcing bar to cut the round bar through the machine tool inclined cylindrical shape, the inner circumferential surface after forming a female screw on the inner circumferential cutting method Since the production was very cumbersome, there was a problem that a lot of production costs.

The present invention is to solve the problem of the one-touch rebar coupler according to the prior art, the purpose is to easily connect a pair of rebar in the longitudinal direction in one-touch manner, as well as the length of the rebar or rebar coupler after construction of the reinforcing bars The present invention provides an anti-slip one-touch reinforcing coupler that prevents the reinforcing of the rebar coupler from the rebar coupler or the slip coupler from the rebar due to the tensile force acting in the direction.

It is another object of the present invention to provide a slip-proof one-touch rebar coupler which is installed inside the main body to easily manufacture and assemble a fastening member for fastening reinforcing bars, and to be easily manufactured with fewer components. will be.

In order to achieve the above object, the anti-slip one-touch rebar coupler according to the present invention is a cylindrical body provided with a stop plate for restraining the falling or rising of the reinforcing bar in the inner center; Fastening caps respectively installed at the inner upper end and the inner lower end of the main body, and having a guide hole having a larger diameter in the center from the upper end to the lower end; A fastening member inserted into the fastening cap and provided with a plurality of serration protrusions in an up and down direction on an inner circumferential surface thereof, the fastening member having an outer circumferential surface formed of an inclined surface that increases in diameter from an upper end portion to a lower end portion; An elastic member installed between the fastening member and the stop plate of the main body to elastically support the fastening member; A ceramic sheet member which is installed in close contact with the upper and lower ends of the stop plate of the main body and supports one end of the elastic member; It is installed in the center of the stop plate of the main body, both ends are in contact with each of the reinforcing bars; includes, the fastening member is a plurality of slits formed radially, the uncut portion between the lower end of each slit and the lower end of the fastening member Is provided is partitioned into a plurality of fastening portion, is not divided into a plurality of pieces in the assembly process, characterized in that the uncut portion is cut by the fastening force in the rebar fastening process is divided into a plurality of pieces.

Anti-slip one-touch rebar coupler according to the present invention is characterized in that any one of the plurality of slits provided radially in the fastening member is formed from the top to the bottom of the fastening member so that the uncut portion.

The anti-slip one-touch rebar coupler according to the present invention is characterized in that an annular locking projection is provided at the bottom center of the fastening member to more stably support the elastic member.

The anti-slip one-touch rebar coupler according to the present invention is characterized in that the washer-type support member provided with the annular engaging protrusion at the bottom center is installed at the lower end of the fastening member so that the elastic member is stably in close contact with one end of the fastening member.

The contact member of the anti-slip one-touch rebar coupler according to the present invention is characterized in that the contact head is provided at both ends of the through part penetrating through the stop plate of the main body.

In the anti-slip one-touch rebar coupler according to the present invention, when the lower reinforcing bar inserted in the lower part of the main body and the upper reinforcing bar inserted in the upper part of the main body face each other through the contact member and supply current to the lower reinforcing bar and the upper reinforcing rod, The upper end of the lower reinforcing bar and the lower end of the upper reinforcing bar, and the contact member and the center of the stop plate of the body is melted and integrated, characterized in that the slip is prevented.

According to the anti-slip one-touch rebar coupler according to the present invention, the slip-resistant one-touch rebar coupler is simply inserted into the lower reinforcing bar, and then the upper bar is easily inserted into the slip-resistant one-touch rebar coupler to easily connect a pair of reinforcing bars in the longitudinal direction. After the two bars are welded together, it is possible to prevent the slip phenomenon that part of the slip resistant one-touch rebar coupler comes out of the lower reinforcing bar or part of the upper reinforcing bar comes out of the slip resistant one-touch rebar coupler after the rebar connection construction.

According to the anti-slip one-touch rebar coupler according to the present invention, since the fastening member is assembled inside the fastening cap as one component, and divided into a plurality of pieces during the construction process, there is no separate support member between the fastening member and the ceramic sheet member. Since the elastic member can be installed, the number of required parts can be reduced, the assembly and productivity can be improved, and the cost can be reduced.

1 is an exploded perspective view of a non-slip one-touch rebar coupler according to a preferred embodiment of the present invention,
Figure 2 is a longitudinal sectional view of the anti-slip one-touch rebar coupler according to the preferred embodiment,
3a and 3b is a perspective view of a fastening member of the anti-slip one-touch rebar coupler according to the preferred embodiment,
Figure 4 is a molding process of the fastening member of the anti-slip one-touch rebar coupler according to the preferred embodiment,
5 is a perspective view of the ceramic sheet member of the anti-slip one-touch rebar coupler according to the preferred embodiment,
Figure 6 is a perspective view of the contact member of the anti-slip one-touch rebar coupler according to the preferred embodiment,
7a to 7d is a view showing the construction process of the reinforcing bar connection construction method of the one-touch non-slip rebar coupler according to an embodiment of the present invention,
8 and 9 is a modified example of the fastening member of the anti-slip one-touch rebar coupler according to the preferred embodiment,
Figure 10 is a longitudinal sectional view of the main portion of the anti-slip one-touch rebar coupler according to another embodiment of the present invention,
Figure 11 is an exploded perspective view of the main portion of the anti-slip one-touch rebar coupler according to another embodiment.

Hereinafter, the slip-proof one-touch rebar coupler according to the present invention will be described in detail with reference to the accompanying drawings. For reference, the size of the components, the thickness of the line and the like shown in the drawings referred to in describing the present invention may be somewhat exaggerated for ease of understanding.

In addition, terms used in the description of the present invention are defined in consideration of the functions in the present invention and may vary according to a user, an operator's intention, customs, and the like. Accordingly, the definition of this term should be based on the contents throughout the specification.

And in this application, the terms 'comprise', 'have', etc. refer to the presence of a specific number, step, operation, component, part, or combination thereof described on the specification, one or more other It is to be understood that the present invention does not exclude the possibility of the presence or the addition of features, numbers, steps, operations, components, parts, or a combination thereof.

In addition, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the scope of the invention to those skilled in the art. It is provided for complete information.

Therefore, the present invention may be modified in various ways and may have various forms. Therefore, embodiments (or embodiments) will be described in detail in the specification. However, this is not intended to limit the present invention to a specific disclosure form, it should be understood to include all changes, equivalents, and substitutes included in the technical idea of the present invention, the singular expression used herein is clearly different from the context. Unless you mean it, include multiple expressions.

However, in describing the present invention, detailed descriptions of well-known or known functions or configurations will be omitted for clarity.

Hereinafter, "upward", "downward", "forward" and "rear" and other directional terms are defined based on the states shown in the figures.

1 is an exploded perspective view of a non-slip one-touch rebar coupler according to a preferred embodiment of the present invention, Figure 2 is a longitudinal sectional view of the non-slip one-touch rebar coupler according to the preferred embodiment.

Anti-slip one-touch rebar coupler 100 according to a preferred embodiment of the present invention to connect a pair of rebar in the longitudinal direction, the body 110, a pair of fastening cap 120, a pair of fastening members 130, a pair of elastic members 140, a pair of ceramic sheet members 150, and a contact member 160.

The main body 110 is a part in which the rebar 200 is accommodated in the inner lower part and the inner upper part, respectively, and has a cylindrical shape.

A male screw portion 111 to which the fastening cap 120 is fastened is provided at an inner circumferential upper portion and an inner circumferential lower portion of the main body 110, and a stop plate 112 is provided at the inner center to restrain the lowering or rising of the rebar 200. .

The fastening cap 120 is a component for guiding the lifting of the fastening member 130 that is elastically supported by the elastic member 140, and is fastened to the upper and lower portions of the main body 110, respectively.

The fastening cap 120 is provided with a guide hole 121 for guiding the lifting and lowering of the fastening member 130 at the center thereof, and has a male screw 122 that is fastened to the main body 110 at one end of the outer circumference thereof.

The guide hole 121 of the fastening cap 120 has a form of an inclined hole whose diameter increases from the upper end to the lower end.

3A and 3B are perspective views of the fastening member of the anti-slip one-touch rebar coupler according to the preferred embodiment.

The fastening member 130 is pressed in close contact with the outer circumference of the reinforcement 200 which is introduced into the inner upper portion of the main body 110 and the inner lower portion of the main body 110 through the guide hole 121 of the fastening cap 120. ) Is a part for fastening to the fastening cap 120 and the main body 110, it is inserted into each of the fastening cap 120 is installed.

Fastening member 130 has a plurality of serration projections 131 are provided in the vertical direction on the inner circumferential surface, the outer peripheral surface has the form of a tapered tube formed of the inclined surface 132 is increased in diameter from the upper end to the lower end.

The inclination angle of the inclined surface 132 of the fastening member 130 is the same as the inclination angle of the guide hole 121 of the fastening cap 120.

A plurality of slits 133 are radially formed in the fastening member 130, and the slits 133 are formed long from the top to the bottom thereof.

An uncut portion 134 is provided between the lower end of each slit 133 and the lower end of the fastening member 130, and the fastening member 130 partitioned into a plurality of fastening portions by each slit 133 is divided into a plurality of pieces during the assembly process. It is not divided into, it is divided into a plurality of pieces when the uncut portion 134 is cut by the fastening force in the rebar fastening process.

Any one of the plurality of slits 133 may be formed to the lower end of the fastening member 130 without the uncut portion 134, and the fastening member 130 is not divided into a plurality of pieces during the assembly process.

In the embodiment shown in FIGS. 1-7D, the number of sullets 133 is four, and thus, the slits 133 in the present invention are divided into four pieces when all the uncut portions 134 are cut during the rebar fastening process. Of course, the number of can be added or subtracted in the foreseeable range.

Figure 4 is a molding process of the fastening member of the anti-slip one-touch rebar coupler according to the preferred embodiment.

Fastening member 130 is a continuous press machine having a plurality of dies and punches as shown in Figure 4 through the continuous press molding of the same cylindrical material of the upper and lower diameters are provided with the same hole in the upper and lower diameters in the inner center, the outer peripheral surface toward the lower diameter The trapezoidal cylindrical continuous press-molded part P1 having the smaller inclined surface 132 is manufactured, and a female screw is formed on the inner circumferential surface of the continuous press-molded part through a cutting machine to form a serration protrusion 131 and then rotate. The continuous press molded part may be radially cut through a cutter or a cutting press machine to form a plurality of slits 133.

The elastic member 140 is a component that elastically supports the lifting of the fastening member 130, has a compression coil spring shape, and is installed between the fastening member 130 and the stop plate 112 of the main body 110.

The ceramic sheet member 150 is a component for shielding the diffusion of welding heat in the butt welding process of the pair of rebars 200 and preventing the elastic member 140 and the main body 110 from being bonded to each other. The upper and lower ends of the stop plate 112 are installed in close contact with each other to support one end of the elastic member 140.

5 is a perspective view of the ceramic sheet member of the anti-slip one-touch rebar coupler according to the preferred embodiment.

The ceramic sheet member 150 is provided with an elastic member supporting step 151 in the lower portion of the outer circumference, and has a cylindrical shape in which a gas discharge groove 152 is radially formed around the bottom.

The contact member 160 is a part to which the reinforcing steel 200 introduced into the inner upper part and the inner lower part of the main body 110 contacts, and is installed at the center of the stop plate 112 of the main body 110.

Figure 6 is a perspective view of the contact member of the anti-slip one-touch rebar coupler according to the preferred embodiment.

The contact member 160 has a form similar to a rivet and has contact heads 162 provided at both ends of the through part 161 penetrating through the center of the stop plate 112 of the main body 110.

The material of the contact member 160 is preferably aluminum having excellent electrical conductivity and meltability, but other predictable materials may be used.

Anti-slip one-touch rebar coupler 100 according to a preferred embodiment of the present invention is connected to the lower reinforcement 200 fixed to concrete, etc. in the longitudinal connection of a pair of reinforcing bar 200 in the longitudinal direction like the one-touch rebar coupler according to the prior art After inserting the lower part of the anti-slip one-touch rebar coupler 100, the upper bar 200 to be connected to the upper part of the anti-slip one-touch rebar coupler 100 may be inserted to easily connect the pair of reinforcing bars 200.

In addition, the anti-slip one-touch rebar coupler 100 according to the preferred embodiment of the present invention when the both ends of the pair of reinforcing bar 200 connected to the stop plate 112 of the main body 110 from the lower reinforcement 200 The anti-slip one-touch rebar coupler 100 can be slid upwards within the clamping clearance range or the slip-resistant one-touch rebar coupler 100 can be prevented from slipping upwards within the clamping clearance range. Will be.

7A to 7D are views illustrating a construction process of the anti-slip one-touch rebar coupler according to the preferred embodiment.

When connecting a pair of rebars 200 in the vertical direction through the anti-slip one-touch rebar coupler 100 according to a preferred embodiment of the present invention, firstly, the lower reinforcing bars embedded in concrete or welded to a fixture such as a base frame ( Insert the slip prevention one-touch rebar coupler (100) into the 200).

When the anti-slip one-touch rebar coupler 100 is fastened to the lower rebar 200, the center of the guide hole 121 of the lower fastening cap 120 of the anti-slip one-touch rebar coupler 100 is illustrated in FIG. 6A. When the non-slip one-touch rebar coupler 100 is pushed down toward the lower reinforcement 200 in a state coincided with the center of the center, the fastening member 130 is raised while the elastic member 140 is compressed, and the fastening member 130 of the fastening member 130 As the uncut portion 134 provided at the upper portion of each slit 133 is cut, the fastening member 130 is separated into a plurality of pieces, and the pieces of the separated fastening member 130 are guide holes (the lower fastening cap 120). As the inner diameter of the pieces of the entire fastening member 130 is enlarged while being expanded along the 121, the anti-slip one-touch rebar coupler 100 can be lowered toward the lower reinforcement 200.

The lowering of the anti-slip one-touch rebar coupler 100 proceeds until the contact head 162 of the contact member 160 reaches the upper end of the lower rebar 200 and the contact head 162 of the contact member 160. When removing the lowering force of the anti-slip one-touch rebar coupler 100 in the state in contact with the top of the lower reinforcement 200, the compressed elastic member 140 is stretched while simultaneously lowering the pieces of the separated fastening member 130 Thus, the serration projection 131 of the inner circumferential surface of the piece of each fastening member 130 is firmly pressed against the outer circumferential surface of the lower reinforcement 200, so that the slip-resistant one-touch rebar coupler 100 and the lower reinforcement 200 This is firmly fastened and the fastening state is stably maintained.

As shown in FIG. 6B, the anti-slip one-touch rebar coupler 100 is fastened to the lower rebar 200, and then the upper rebar 200 is inserted into the anti-slip one-touch rebar coupler 100.

In the process of inserting and fastening the upper reinforcement 200 into the slip resistant one-touch rebar coupler 100, the center of the upper reinforcement 200 is formed by the guide hole 121 of the upper fastening cap 120 of the slip resistant one-touch rebar coupler 100. When the upper reinforcement 200 is pushed toward the anti-slip one-touch rebar coupler 100 while being aligned with the center, the elastic member 140 is compressed and the fastening member 130 is lowered, and each slit of the fastening member 130 is slit. The fastening member 130 is separated into a plurality of pieces while the uncut portion 134 provided at the bottom of the 133 is cut, and the pieces of the separated fastening member 130 are guide holes 121 of the upper fastening cap 120. As the inner diameter of the pieces of the entire fastening member 130 is expanded while descending along the upper reinforcement 200, the upper rebar 200 can be lowered to the anti-slip one-touch rebar coupler 100.

The lowering of the upper reinforcement 200 proceeds until the lower end of the upper reinforcement 200 reaches the contact head 162 of the contact member 160, and the lower end of the upper reinforcement 200 is connected to the contact member 160. Removing the lowering force of the upper reinforcing bar 200 in contact with the contact head 162 causes the compressed elastic member 140 to elongate and simultaneously raise the pieces of the separated fastening member 130. Since the serration protrusion 131 of the inner circumferential surface of the piece of the fastening member 130 is firmly pressed against the outer circumferential surface of the upper rebar 200, the upper rebar 200 and the anti-slip one-touch rebar coupler 100 are firmly fastened, The fastening state is kept stable.

After fastening the anti-slip one-touch rebar coupler 100 to the lower rebar 200 and fastening the upper reinforcement 200 to the slip-resistant one-touch rebar coupler 100, the lower reinforcement 200 and the slip-resistant one-touch rebar coupler 100 The anti-slip one-touch coupler (100) to prevent slipping of the non-slip one-touch rebar coupler (100) and the upper reinforcement (200) due to the fastening play between the anti-slip and one-touch rebar coupler (100) and the upper rebar. The upper end and the upper reinforcement 200 of the lower reinforcement 200 connected through the lower end by welding to integrate to prevent slip.

As shown in FIG. 6C, the lower rebar 200 and the upper rebar 200 are connected to each other through the contact member 160 while the lower rebar 200 and the upper rebar 200 are connected through the anti-slip one-touch coupler 100. When the welding current is supplied, the upper end of the lower reinforcement 200 and the lower end of the upper reinforcement 200, and the center of the stop plate 112 of the contact member 160 and the main body 110 may be formed by electric resistance heat as shown in FIG. 6D. Melted, the upper reinforcement 200, the main body 110, and the lower reinforcement 200 is integrated with each other.

In the process of welding the upper reinforcement 200 and the lower reinforcement 200 with the anti-slip one-touch coupler 100 is installed in close contact with the top and bottom of the stop plate 112 of the main body 110, respectively, the elastic member 140 The ceramic sheet member 150 supporting the metal sheet prevents thermal melt of the elastic member 140 while preventing the molten metal melt from being separated out of the ceramic sheet member 150 by the electric resistance heat, and the elastic member 140. And the body 110 serves to prevent the bonding.

As described above, the anti-slip one-touch rebar coupler 100 according to the preferred embodiment of the present invention can easily connect a pair of reinforcing bars 200 in the longitudinal direction, and both reinforcing bars through the contact member 160 after the reinforcing bars are connected. When the butt welded 200) is integrated with the anti-slip one-touch rebar coupler 100, the slip-resistant one-touch rebar coupler 100 is slid from the lower reinforcement 200 or the part of the upper reinforcement 200 is slip-resistant after rebar connection construction. The one-touch rebar coupler 100 can be prevented from slipping sliding.

On the other hand, the anti-slip one-touch rebar coupler 100 according to a preferred embodiment of the present invention is a fastening member 130, which is a key part that is directly pressed close to the pair of reinforcement 200 is a fastening cap 120 as one part It is assembled in the interior, and has a feature that is divided into a plurality of pieces during construction.

Therefore, in the anti-slip one-touch rebar coupler 100 according to a preferred embodiment of the present invention, the ceramic sheet member 150 and the fastening member 130 are not used, without using a separate support member supporting the elastic member 140. Since the elastic member 140 can be installed, the required number of parts can be reduced, the assembly and productivity can be improved, and the cost can be reduced.

8 and 9 are views illustrating a modification of the fastening member of the anti-slip one-touch rebar coupler according to the preferred embodiment.

As described above, the fastening member 130 of FIG. 8 is formed from an upper end to a lower end such that any one of the plurality of slits 133 that are radially provided does not have the uncut portion 134, and the fastening member 130 of FIG. 9. ) Is a form to support the elastic member 140 more stably by providing an annular locking projection 135 in the lower center of the fastening member 130 in contact with the elastic member 140.

Figure 10 is a longitudinal sectional view of the main portion of the anti-slip one-touch rebar coupler according to another embodiment of the present invention, Figure 11 is an exploded perspective view of the main portion of the anti-slip one-touch rebar coupler according to another embodiment of the present invention.

The anti-slip one-touch rebar coupler 100 according to another embodiment of the present invention illustrated in FIGS. 10 and 11 includes a fastening member 130 having a separate washer-type support member 136 provided with a locking protrusion 136a at the bottom center thereof. It is installed at the bottom of the box.

The support member 130 used in the anti-slip one-touch rebar coupler 100 according to another embodiment of the present invention of FIGS. 10 and 11 simply contacts the elastic member 140 to one end of the fastening member 130 stably. It is for the purpose of being simple, and it can manufacture easily.

As mentioned above, although the invention made by the present inventor was demonstrated concretely according to the said Example, this invention is not limited to the said Example and can be variously changed in the range which does not deviate from the summary.

100: slip resistant one-touch rebar coupler
110: body
112: stop plate
120: fastening cap
130: fastening member
140: elastic member
150: ceramic sheet member
160: contact member
162: contact head
200: rebar

Claims (6)

A cylindrical body 110 provided with a stop plate 112 for restraining the lowering or the raising of the reinforcing bar in the inner center thereof;
A fastening cap 120 installed at each of the inner upper end and the inner lower end of the main body 110 and provided with a guide hole 121 having a diameter that increases from the upper end to the lower end in the center thereof;
Inserted into the interior of the fastening cap 120, a plurality of serration projections 131 are provided on the inner circumferential direction in the vertical direction, the fastening member 130 formed of an inclined surface 132 whose outer circumferential surface is larger in diameter from the upper end to the lower end ;
An elastic member 140 installed between the fastening member 130 and the stop plate 112 of the main body 110 to elastically support the fastening member 130;
Ceramic sheet members 150 installed in close contact with upper and lower ends of the stop plate 112 of the main body 110 and supporting one end of the elastic member 140;
A contact member 160 installed at the center of the stop plate 112 of the main body 110 and having both ends in contact with the rebar 200, respectively.
The fastening member 130 has a plurality of slits 133 are formed radially, and an uncut portion 134 is provided between the lower end of each slit 133 and the lower end of the fastening member 130 and divided into a plurality of fastening parts. , Is not divided into a plurality of pieces in the assembly process, the uncut portion 134 is cut by the fastening force in the rebar fastening process is divided into a plurality of pieces;
Any one of the plurality of slits 133 provided radially in the fastening member 130 is formed from the top to the bottom of the fastening member 130 so that there is no uncut portion 134,
A washer-type support member 136 having a locking protrusion 136a provided at a lower center thereof is installed at a lower end of the fastening member 130 such that the elastic member 140 is stably in close contact with one end of the fastening member 130.
The contact member 160 has a form in which contact heads 162 are provided at both ends of the through part 161 penetrating through the stop plate 112 of the main body 110.
The lower reinforcement 200 inserted into the lower portion of the main body 110 and the upper reinforcement 200 inserted into the upper portion of the main body 110 are opposed to each other through the contact member 160, and the lower reinforcement 200 and the upper reinforcement ( When the current is supplied to the electric wire 200, the upper end of the lower reinforcement 200 and the lower end of the upper reinforcement 200 and the center of the contact member 160 and the stop plate 112 of the main body 110 are melted by the electric resistance heat. Integrated to prevent slip;
Fastening member 130,
Through the continuous press machine having a plurality of dies and punches, continuous press-molding of cylindrical materials having the same up and down diameter is provided, and holes having the same up and down diameter are formed in the inner center.
To prepare a trapezoidal cylindrical continuous press molded part of the inclined surface 132, the diameter of which becomes smaller toward the outer peripheral surface,
After cutting and forming a female screw on the inner circumferential surface of the continuous press-molded part through a cutting machine, the serration protrusion 131 is formed.
It consists of producing a plurality of slits 133 by radially cutting the continuous press molded part through a rotary cutter or a cutting press machine,
The material of the contact member 160 is an anti-slip one-touch rebar coupler, characterized in that the aluminum is excellent in electrical conductivity and meltability. delete delete delete delete delete

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