KR20210000863U - One-touch coupler for rebar connection - Google Patents

Abstract

The present invention is to provide a one-touch coupler for reinforcing bar connection that can be assembled by engaging a reinforcing bar and a socket by screwing.
That is, the present invention is a coupler body 20 in which the joint holes 22 are formed at both ends so that the threaded rod 10 formed at the end of the reinforcing bar 1 is inserted; A stop housing 30 installed inside the joint hole 22 and provided to limit the insertion depth of the threaded rod 10; And a socket inserted into the joint hole 22 and installed to be pressurized and transferred to the inlet side of the joint hole 22 by an elastic body 41, and having a screw surface 42 formed to engage and bind the threaded rod 10 on the inner circumferential surface ( 40); characterized in that consisting of.
When using the one-touch coupler for reinforcing bar connection, the reinforcing bar and the socket are closely engaged with each other by screwing, so the binding force is very strong, and the coupler body is formed in two parts so that the stop housing is fitted between the coupler bodies while screwing. There is an advantage that the assembly structure is improved to provide convenience in manufacturing and construction.

Description

One-touch coupler for rebar connection

The present invention relates to a one-touch coupler for reinforcing bar connection, and if described in more detail, a one-touch coupler for reinforcing bar connection is configured such that reinforcing bars and sockets are engaged and assembled by screwing.

Typically, a reinforced concrete structure is a structure in which the strengths and weaknesses of each reinforcement and concrete are complemented together, and is a structure capable of resisting external forces by arranging reinforcing bars in a portion where tensile stress is applied.

In recent years, the length of the reinforcing bar inside the concrete is relatively extended due to the large size and high rise of the reinforced concrete structure. In the case of reinforcing bars, the length of reinforcing bars is limited to a standard product of a certain length, so a number of reinforcing bars according to the height of the structure It is essential to connect them in the longitudinal direction.

For example, the reinforcing bar connection method is carried out in a number of ways, such as overlapping, gas pressure welding, and mechanical connection using a coupler, in which two reinforcing bars are overlapped and then tied together.However, the overlapping is not durable, so the structure is high-rise. In this case, there is a risk to apply, and the gas pressure point sound is not stable due to thermal deformation of the heated part, and the mechanical joint method has a problem that leads to an accident in which the reinforcement is separated due to the limit of the increase in the tightening force of the reinforcing bar.

Accordingly, in Patent Registration No. 10-2027135 disclosed in the related art, ceramic sheet members are installed in close contact with each other on the upper and lower ends of the stopping plate of the main body, and support one end of the elastic member; A non-slip one-touch reinforcing bar coupler is configured in a form including a contact member installed in the center of the stopping plate of the main body and each end is in contact with the reinforcing bar, and a non-slip one-touch reinforcing bar coupler is inserted into the lower reinforcing bar installed in the fixture to be fastened. One-touch reinforcing bar coupler fastening step to prevent slip; The upper reinforcing bar fastening step of inserting and fastening the upper reinforcing bar into the slip-preventing one-touch reinforcing bar coupler fastened to the lower reinforcing bar; A reinforcing bar welding step in which slip is prevented by welding the upper end of the lower reinforcing bar and the upper reinforcing bar connected through a slip prevention one-touch coupler by welding the lower end to prevent slip.

In addition, in the other prior art Patent Registration No. 10-1796538, the present invention is a first reinforcing bar is inserted in one side opened in a hollow cylindrical shape, and a second reinforcing bar is inserted in the other side, so that the first reinforcing bar and the second reinforcing bar are inserted. And a housing having a shielding wall at an inner center thereof to separate the opened one side and the other side; Mounting portions respectively inserted into one side and the other side of the housing and disposed outside of the reinforcing bars; A coupling part disposed on the mount part to enable sliding transfer, and contacting the outer circumferential surface of the inserted reinforcing bars to prevent the reinforcing bars from being removed; An elastic portion providing a restoring force to the sliding transfer of the coupling portion so as to convey the sliding transfer of the coupling portion by the reinforcing bars inserted inside the mount portion; A cover part is 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 reciprocates and slides the coupling part along the direction in which the reinforcing bar is inserted. A technology including a plurality of guide members for guiding to be performed, a connection member for connecting one end of each of the guide members, and a contact member protruding from the connection member in the direction of the coupling portion has been previously registered.

However, the above-described conventional techniques are techniques for fastening reinforcing bars in a one-touch method, but the multi-division of constituent parts and the internal assembly structure are complex, and the failure rate is high. In addition to the cumbersome problem to be prepared for each standard, a slip phenomenon with the outer circumference of the reinforcing bar occurred due to the limit of the coupling force of the coupler, and the reinforcing bar was separated when a high load was applied.

KR 10-2027135 B1 (2019.09.25.) KR 10-1796538 B1 (2017.11.06.)

Accordingly, in the present design, a new technology was created in order to solve the problems of the prior art. Since the reinforcing bar and the socket are assembled in close engagement with each other by screwing, the binding force is maintained firmly and the slip phenomenon is prevented even under high loads, In addition, the socket expandability provides versatility in which reinforcing bars with various sizes and external ribs and joint shapes are flexibly accommodated. In particular, the assembly structure so that the stop housing is fitted between the coupler bodies as the coupler body is formed in two parts and screwed together. It is an object of the invention to provide a one-touch coupler for reinforcing bar connection that provides convenience in manufacturing and construction.

Along with this, although not described separately, other objects within the range that can be inferred in consideration of the specific content and claims for carrying out the following design are to be included in the entire subject of the present invention.

As a specific means for solving the problem of the above design, the present design constitutes a one-touch coupler for reinforcing bar connection, but joint holes 22 are formed at both ends so that the threaded bar 10 formed at the end of the reinforcing bar 1 is inserted. Coupler body 20; A stop housing 30 installed inside the joint hole 22 and provided to limit the insertion depth of the threaded rod 10; And a socket inserted into the joint hole 22 and installed to be pressurized and transferred to the inlet side of the joint hole 22 by an elastic body 41, and having a screw surface 42 formed to engage and bind the threaded rod 10 on the inner circumferential surface ( 40); characterized in that consisting of.

At this time, the coupler body 20 is formed in two parts, is screwed by the female and male screw portions 20a, 20b, and a locking groove 24 on the inner circumferential surface of one side of the coupler body 20 on which the male screw portion 20b is formed. Is formed, and the locking groove 24 is provided to be closed by a finishing jaw 25 formed on the inner circumferential surface of the coupler body 20 on which the female threaded portion 20a is formed, and the stop housing 30 is a male threaded portion ( A body 32 is formed on the outer circumferential surface so as to be inserted into the inner circumferential surface of the coupler body 20 where 20b) is formed, and an outward locking jaw 34 is formed on the outer circumferential surface of the body 32, and the outward locking jaw 34 is the rim groove ( It is characterized in that it is configured to be constrained between 24) and the finishing jaw 25.

In addition, the socket 40 is divided by a plurality of partial cutting lines 44 formed in the longitudinal direction and connected to each other by an uncut portion 44a, and any one of the partial cutting lines 44 is completely cut. It is characterized in that it is formed as a line 46 to form a socket engaging jaw 47 at the front end of the body.

In addition, the joint hole 22 has an inclined inner diameter portion 22a whose inner diameter decreases toward the inlet side, and the socket 40 is an inclined outer diameter portion 40a whose outer diameter decreases toward the inlet side of the joint hole 22 Is formed, and the socket 40 is provided so that the spacing between the screw surfaces 42 is reduced by an inclined motion between the inner and outer diameter portions 22a and 40a, and the inlet side edge of the coupler body 20 It is characterized in that the locking projection 27 protruding inward is formed.

According to the specific means for solving the above-described problem, the present invention is assembled by being closely engaged with each other by screwing the reinforcing bar and the socket, so that the binding force is maintained very firmly, and the slip phenomenon does not occur at all even under high loads.

In addition, due to the expansion of the socket, versatility is provided to flexibly accommodate reinforcing bars with various sizes or various shapes of external ribs or joints. In particular, the coupler body is formed in two divisions and screwed together to insert a stop housing between the coupler bodies. The assembly structure is improved so that it has the effect of providing convenience in manufacturing and construction.

1 is an exploded perspective view showing an overall one-touch coupler for connecting reinforcement according to an embodiment of the present invention.
Figure 2 is a longitudinal sectional view showing the internal structure of a one-touch coupler for connecting reinforcement according to an embodiment of the present invention.
3 is a block diagram showing a socket of a one-touch coupler for connecting reinforcement according to an embodiment of the present invention.
Figure 4 is a configuration diagram showing a state of use of a one-touch coupler for connecting reinforcement according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail for the implementation of the present invention. In the description of the present invention, when it is determined that the subject matter of the present invention may be unnecessarily obscured as matters that are apparent to those skilled in the art for known functions related to the present invention, a detailed description thereof will be omitted.

The present invention relates to a one-touch coupler for reinforcing bar connection, which is assembled by tightly interlocking with each other by screwing the reinforcing bar and the socket, so that the binding force is maintained firmly and the slip phenomenon is prevented even under high loads. And external ribs, reinforcing bars having a joint shape are flexibly accommodated, and in particular, a screw rod (10) to improve the assembly structure so that a stop housing is fitted between the coupler bodies while the coupler body is formed in two divisions and screwed together. ), a coupler body (20), a stop housing (30), consisting of a main configuration including a socket (40).

In general, a rib 1a protruding is formed on the outer circumferential surface of the reinforcing bar 1, and the shape of the rib 1a is not standardized, and the shape varies according to manufacturers.

However, in order to connect the reinforcing bars using the one-touch coupler for connecting reinforcing bars provided in the present invention, a threaded bar 10 is formed at the end of the reinforcing bar 1, and this threaded bar 10 is a male threaded portion, and the reinforcing bar 1 The end is processed to form the same thread as the socket to be described later.

Accordingly, it is not affected by various reinforcing bar standards and external ribs and joint shapes by manufacturer, and is processed to a certain standard by the threaded rod 10 or to a standard corresponding to the socket to be described later, and the binding force according to the connection with the socket 40 You will try to improve.

In the coupler body 20 according to the present invention, joint holes 22 are formed at both ends so that the threaded rod 10 is inserted. The coupler body 20 is formed as a tube body through which the joint hole 22 penetrates in the center. As shown in FIG. 1, the coupler body 20 is formed in two divisions and is screwed by the female and male screw parts 20a and 20b. Is assembled into.

In addition, a stop housing 30 is installed inside the joint hole 22. The stop housing 30 is installed at the connection portion of the coupler body 20 formed in two divisions as shown in FIG. 2 to divide the joint hole 22 formed in each coupler body 20 into an independent space. do. Accordingly, when inserting the threaded rod 10 of the reinforcing bar 1 through the joint hole 22, the end of the threaded rod 10 abuts against the stop housing 30 to limit the insertion depth.

At this time, a locking groove 24 is formed on an inner circumferential surface of one side of the coupler body 20 in which the male screw part 20b is formed among the pair of two-divided coupler bodies 20, and the locking groove 24 is a female screw part ( 20a) is provided to be closed by the finishing jaws 25 formed on the inner circumferential surface of the coupler body 20 is formed.

That is, when screwing the bi-divided coupler body 20 through the female and male screw portions 20a, 20b, the locking groove 24 and the end in the connection area where the female and male screw portions 20a and 20b are in contact with each other. An annular compartment having a'C'-shaped cross-sectional shape divided by the jaws 25 is formed so that the outward locking jaws 34 of the stop housing 30 to be described later are constrained.

1 and 2, the stop housing 30 has a cylindrical body 32 formed on the outer circumferential surface so as to be inserted into the inner circumferential surface of the coupler body 20 on which the male thread part 20b is formed, and the body (32) An outward locking jaw 34 is formed at one end of the outer circumferential surface. Accordingly, the body 32 of the stop housing 30 is inserted into the inner circumferential surface of the coupler body 20, and the outward locking jaw 34 is constrained between the locking groove 24 and the finishing jaw 25 as described above.

In this way, the coupler body 20 is divided into two and assembled by screwing by the female and male screw portions 20a and 20b, and the stop housing 30 is fitted between the coupler body 20 divided into two. Since it is installed, the internal structure is simple, and since a separate screw portion for fixing the existing stop housing 30 is omitted, the assembly is simple and the component manufacturing process is simplified.

3 is a block diagram showing a socket of a one-touch coupler for reinforcing bar connection, the socket 40 according to the present invention is inserted into the joint hole 22 and installed to pressurize the joint hole 22 inlet side by the elastic body 41 , A screw surface 42 is formed on the inner circumferential surface to engage and bind the screw rod 10 of the reinforcing bar (1).

The socket 40 is inserted into the joint hole 22 and provided to slide in the depth direction of the joint hole 22, and is engaged by screwing to the reinforcing bar (1) threaded rod (10) through the screw surface (42). do. At this time, the threaded surface 42 is formed with the same thread as the threaded rod 10.

In addition, the socket 40 is divided by a plurality of partial incision lines 44 formed in the longitudinal direction and connected to each other by an uncut portion 44a, and any one of the partial incision lines 44 is uncut. It is formed to have a complete cut line 46 without a portion 44a.

As an example, FIG. 3 shows a socket 40 divided into four, and a complete cut line 46 is formed between at least a pair of divided sockets to be spaced apart from each other.

At this time, the socket 40 is formed in a single body by the uncut portion 44a to provide convenience in assembly and handling of parts, and the screw surface 42 by the partial cut line 44 and the complete cut line 46 The socket expandability, in which the spacing between the sockets is elastically variable, has the versatility of flexibly applying reinforcing bars of various standards.

On the other hand, the socket 40 has a chamfered surface formed at the inner diameter end of the side into which the reinforcing bar 1 is inserted, and when the reinforcing bar 1 enters, the screw surface divided by the partial incision line 44 and the complete incision line 46 ( 42) is configured to quickly expand the gap between them.

The joint hole 22 has an inclined inner diameter portion 22a whose inner diameter decreases toward the inlet side, and the socket 40 has an inclined outer diameter portion 40a whose outer diameter decreases toward the inlet side of the joint hole 22 In addition, the socket 40 is provided so that the gap between the screw surfaces 42 is reduced by an inclined motion between the inner and outer diameter portions 22a and 40a.

In addition, a locking jaw 27 protruding inward is formed at the entrance edge of the coupler body 20 to prevent the socket 40 engaged with the screw rod 10 from being separated from the outside by the locking jaw 27 do.

Figure 4 is a configuration diagram showing the state of use of the one-touch coupler for connecting reinforcement of the present invention, when inserting the reinforcing bar (1) threaded rod (10) into the joint hole (22), the screw surface (42) of the socket (40) As the gap between them is elastically expanded, the entry of the threaded rod 10 is allowed. When the end of the threaded rod 10 abuts on the stop housing 30 and the insertion depth is limited, the socket 40 is pressurized and conveyed by the elastic body 41 toward the inlet side of the joint hole 22. At this time, the socket 40 ), the sockets 40 divided by the inclined motion between the inner and outer diameter portions 22a and 40a are constricted, and the gap between the screw surfaces 42 is reduced, and the outer circumferential surface of the screw rod 10 is firmly bound.

And, when a tensile force is applied through the reinforcing bar (1), the gap between the screw surfaces (42) is further reduced by an inclined motion between the inner and outer diameter portions (22a, 40a), thereby further increasing the binding force of the reinforcing bar. The screw surface 42 of the screw rod 10 and the socket 40 are closely engaged with each other, and there is a locking protrusion 27 at the front end of the inlet side of the coupler body 20, even if a high-load tensile force acts on the existing reinforced coupler. There is no slip phenomenon that occurs easily at all.

As described above, in the detailed description of the present invention, the most preferred embodiment of the present invention has been described, but various modifications are possible within the scope not departing from the technical scope of the present invention. It is not limited to the examples, but the scope of protection should be recognized from the technologies of the utility model registration claims to be described later and from these technologies to equivalent technical means.

1: rebar 10: threaded rod
20: coupler body 20a, 20b: female, male thread
22: joint hole 22a: inclined inner diameter portion
24: locking groove 25: finishing jaw 27: locking jaw
30: stop housing 32: body 34: outward locking jaw
40: socket
40a: oblique outer diameter part 41: elastic body
42: screw surface 44: partial incision line
44a: unincision 46: complete incision line

Claims (4)

A coupler body 20 having joint holes 22 formed at both ends so that the threaded rod 10 formed at the end of the reinforcing bar 1 is inserted;
A stop housing 30 installed inside the joint hole 22 and provided to limit the insertion depth of the threaded rod 10; And
The socket 40 is inserted into the joint hole 22 and installed to be pressurized toward the inlet of the joint hole 22 by the elastic body 41, and the screw surface 42 is formed on the inner circumferential surface to engage and bind with the threaded rod 10 One-touch coupler for connecting reinforcing bars comprising;
The method of claim 1,
The coupler body 20 is formed in two divisions and is screwed by the female and male screw portions 20a, 20b, and a locking groove 24 is formed on the inner peripheral surface of one side of the coupler body 20 on which the male threaded portion 20b is formed. And, the locking groove 24 is provided to be closed by a finishing jaw 25 formed on the inner circumferential surface of the coupler body 20 on which the female screw portion 20a is formed,
The stop housing 30 has a cylindrical body 32 formed on the outer circumferential surface to be inserted into the inner circumferential surface of the coupler body 20 on which the male thread part 20b is formed, and an outward locking jaw 34 is formed on the outer circumferential surface of the body 32 One-touch coupler for reinforcing bar connection, characterized in that the outward locking jaw 34 is configured to be constrained between the locking groove 24 and the finishing jaw 25.
The method of claim 1,
The socket 40 is divided by a plurality of partial incision lines 44 formed in the longitudinal direction and connected to each other by an uncut portion 44a, and any one of the partial incision lines 44 is an uncut portion ( 44a) One-touch coupler for connecting reinforcement, characterized in that formed as a complete cut line 46 without.
The method of claim 1,
The joint hole 22 has an inclined inner diameter portion 22a whose inner diameter decreases toward the inlet side, and the socket 40 has an inclined outer diameter portion 40a whose outer diameter decreases toward the inlet side of the joint hole 22 In addition, the socket 40 is provided so that the spacing between the screw surfaces 42 is reduced by an inclined motion between the inner and outer diameter portions 22a and 40a,
One-touch coupler for connecting reinforcing bars, characterized in that a locking protruding protruding inwardly is formed on an edge of the inlet side of the coupler body 20.

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