KR20140042068A - Torque shear coupler having tooth of taper-type for stress distribution - Google Patents

Abstract

The present invention provides a coupler with a taper type bump for distributing the stress of a separation unit. The cross sections of the upper and lower parts of a bump (protrusion) of a separation unit of a TS coupler are formed into a tapered triangle or a tapered rectangle. A partially-tapered portion or a entirely-tapered portion is formed on the upper part of the bump of the separation unit, and a partially-tapered portion is formed on the upper part of the separation unit so that a spanner can be easily inserted into the TS coupler. Additionally, predetermined torque is automatically applied when connecting a connection target member such as steel bars to a connection member such as the TS coupler, and the strength of the applied torque can be directly checked with the unaided eye so that the coupler remarkably reduces inconvenience when connecting the members. Furthermore, the coupler can improve productivity by preventing the deformation of the TS coupler or damage to the spanner during a work process.

Description

TORQUE SHEAR COUPLER HAVING TOOTH OF TAPER-TYPE FOR STRESS DISTRIBUTION}

The present invention relates to a coupler having a tapered section, and more particularly, when the reinforcing bar is connected using a Torque Shear Coupler (hereinafter referred to as a TS coupler) for reinforcing bars, deformation of the TS coupler (for example, The present invention relates to a coupler having a taper type bump for distributing stress in a splitter, in which a spanner of an automatic coupling device can be easily coupled to a TS coupler while preventing a splitter deformation.

Generally, reinforcing bars are widely used to reinforce the strength of concrete structures embedded in concrete when reinforcing concrete structures in construction or civil engineering are applied. Especially, reinforcing bars are used for reinforcing concrete structures such as large structures, special structures, A large amount of rebar is used.

However, since these reinforcing bars are produced in a standardized size, they must be used in connection with large structures, special structures, and civil structures such as bridges.

Generally, the reinforcing bar connecting methods that have been used so far include laminating, welding, threading, and mechanical joining. For example, a folded joint is a method of superimposing reinforcing bars on each other with a predetermined length and joining them by tying them together with wires or wires. Since the reinforcing bars need to be overlapped each time, there is a large loss in the amount of reinforcing bars and the strength of the overlapping portions is weak. There is a disadvantage in that the air is stretched, and the weld joint is troublesome in construction, and since the weld is heated, the strength of the reinforcement around the weld can be remarkably weakened due to heat.

Therefore, in order to connect both reinforcing bars at the connection part of the reinforcing bars, a coupler is used which is formed into a cylindrical tube shape and forms a mechanical screw connection with the reinforcing bars.

FIG. 1A is a cross-sectional view illustrating a method of connecting a plurality of reinforcing bars using a coupler according to a conventional technique.

The reinforcing coupler according to the related art has a structure in which the reinforcing bars 21 and 22 are connected to each other by using a coupler 10 screwed to the reinforcing bars as shown in Fig. 1A shows a state before the coupler 10 is coupled to the one reinforcing bar 21. The center view of FIG. 1A shows a state where the coupler 10 connects the two reinforcing bars 21 and 22 to connect the reinforcing bars 21 And 22 are connected to each other. The right side view of FIG. 1A shows a state where the gap between the connecting end faces of the reinforcing bars 21 and 22 is connected by the coupler 10.

Specifically, the coupler 10 according to the prior art, as shown in Figure 1a, consists of a cylindrical member having a hollow 11 corresponding to the outer diameter of the reinforcing bars (21, 22) is formed therein, A female thread portion corresponding to a screw formed on the outer surface of both connecting ends of the rebars 21 and 22 is formed on the inner surface of the coupler 10.

Therefore, a male thread portion is formed on the outer surfaces of both connecting ends of the two reinforcing bars 21 and 22, and the reinforcing bars and the coupler 10 are rotated in opposite directions so that both connecting ends of the reinforcing bars 21 and 22 are in contact with each other. 10 integrally connect the two reinforcing bars 21, 22 to each other.

In order to firmly connect the two side reinforcing bars 21 and 22 to each other using the coupler 10 that is threaded, the coupler 10 is connected to the connection end of the one side reinforcing bar 21 and the connecting end of the other side reinforcing bar 22, The screwed coupler 10 must be tightly tightened with the two side bars until they are no longer rotated.

However, in the case of the coupler 10 according to the related art, it can not be known for how long the reinforcing bars and the coupler 10 are tightened together until the reinforcing bars can be completely connected to each other. That is, since the degree of tightening of the coupler 10 with respect to the reinforcing bars can not be quantitatively controlled and further verified, it has been forced to rely on the ability and sincerity of the operator.

In other words, since the degree of tightening of the coupler 10 can not be determined according to the operator's will and skill, the quality can not be easily verified even if the fastening of the coupler 10 to the reinforcing bars is insufficient.

In order to solve such a problem, it is possible to visually confirm that the tightening of the coupler is made to a sufficient degree so as to prevent the situation where the coupler is insufficiently tightened by the operator. In addition, And a TS coupler (Torque Shear Coupler) 30 is provided as shown in FIG. 1B.

1B is a perspective view illustrating a method of connecting a plurality of reinforcing bars using a coupler in which a fastening body part and a separating part are separated according to the related art.

Referring to FIG. 1B, the TS coupler 30 according to the related art is composed of a tubular member having a hollow 31 having an inner diameter corresponding to the outer diameter of the reinforcing bars 21 and 22 at its center, And a connection end of the reinforcing bars 21 and 22 is inserted into the hollow 31 and connected thereto.

In the case of the TS coupler 30, since the cross-sectional reduction portion 32 is formed so that the cross-sectional area is reduced to have a smaller rotation torque strength than the separating portion 33 and the fastening body portion 34, the cross-section is not reduced, the cross-sectional reduction The TS coupler 30 is divided into the separating part 33 and the fastening body part 34 in the longitudinal direction by the part 32.

The TS coupler 30 is constructed such that the reinforcing bar 21 is screwed to the threaded portion 34a of the fastening body portion 34 and the other reinforcing bars 22 are fastened to the hollow portion 31 of the separating portion 33, And then the tool 41 is attached to the reinforcing bar 22. The tool 41 is attached to the separating portion 33 by a tool (42, spanner or wrench) and rotates in opposite directions to connect the reinforcing bars (22) to the TS coupler (30).

At this time, if the tightening trunk 34 continues to apply torque to the fastening trunk 34 and the separating unit 33 while the fastening trunk 34 is located across the connecting ends of both reinforcing bars 21 and 22, the cross-sectional reduction unit 32 When shear reaches a constant torque, the shear is broken and the separating part 33 and the fastening body part 34 are separated from each other, and thus the magnitude of the torque introduced into the fastening body part 34 can be visually confirmed.

In other words, when the separator 33 of the coupler is sheared and detached from the fastening body 34, it can be visually confirmed by the operator's eye that a predetermined torque is introduced into the coupler.

However, since the TS coupler 30 according to the related art has to rotate the reinforcing bar 22 using a tool 41 such as a pie french for each reinforcing bar, the problem that the worker has to rotate a plurality of reinforcing bars is required. In other words, there is a limitation in that the worker puts the wrench on the coupler every time the reinforcing bar is used, and the work of tightening and rotating the wrench is repeated, thereby increasing the workload greatly, thereby deteriorating the work productivity.

1C is a view showing an automatic coupler coupling apparatus developed by the applicant of the present invention.

Referring to Fig. 1C, an automatic coupler connecting device 70 will be described based on an example in which a connecting member is a coupler 90, and a member to be connected is a lower reinforcing bar and an upper reinforcing bar 81, 82.

The automatic coupler coupling device 70 includes a fixed wrench portion 72 to be fitted into the separating portion 93 of the coupler 90; And the connecting end portion is connected to the rod distal end portion of the hydraulic cylinder 74 by the rotary joint portion to convert the reciprocating motion of the hydraulic cylinder 74 into torque, The lower and upper reinforcing bars 81 and 82 are automatically connected by the coupler 90 by the operation of the hydraulic cylinder 74. [ Here, the fixed wrench portion 72 may be, for example, a spanner.

The connecting end portion of the fixed wrench portion 72 is connected to the reaction force supporting portion 71 by the fixed joint portion and the reaction force supporting portion 71 is connected to the body portion 75. A hydraulic cylinder 74 for supplying torque is accommodated in the body 75 and an arc-shaped guide groove 76 for guiding the reciprocating movement of the hydraulic cylinder 74 is formed.

The coupler 90 for mounting the lower and upper reinforcing bars 81 and 82 by the automatic coupler connecting device 70 has lower and upper reinforcing bars 81 and 82 without a screw connection 92 formed on an inner side thereof. ) Is provided with a separating portion 93 on one side. In addition, the connection thread portion 82a of the lower and upper reinforcing bars 81 and 82 inserted through the separating part 93 is connected to the screw connecting portion 92 formed on the inner side, and the lower and upper reinforcing bars 81 and 82 are connected to the other side. ) Is provided with a fastening body portion 91 to be connected, and forms a cross-sectional reduction portion 94 between the separating portion 93 and the fastening body portion 91.

Accordingly, when the tightening operation of the lower and upper reinforcing bars 81 and 82 is completed, the separation unit 93 is sheared from the fastening trunk 91 through the cross-sectional reduction unit 94, thereby lowering and lowering the reinforcing bars 81 to the outside. , 82) indicate that the tightening operation has been completed successfully and can be visually confirmed.

However, as shown in FIG. 1D, when the torque is applied to the fixed wrench portion 72 inserted into the separating portion 93 of the coupler 90, excessive deformation occurs in the separating portion 93, The separation unit 93 is fitted to the fixed wrench unit 72 and the separation unit 93 can not be separated from the fixed wrench unit 72 even if the separation unit 93 is successfully separated Or an unreasonable torque is applied to the fixed wrench portion 72, the fixed wrench portion 72 may be broken.

On the other hand, as a conventional technique for solving the above-mentioned problems, Korean Patent No. 10-1144139, filed and registered as a patent by the applicant of the present invention, discloses an invention entitled " Which will be described in detail with reference to FIG. 2, wherein Korean Patent No. 10-1144139 is incorporated herein by reference and forms part of the present invention.

FIG. 2 is a perspective view showing a coupling between a TS coupler and a spanner capable of performing stress dispersion of a separator according to a conventional technique.

As shown in FIG. 2, the TS coupler 500 capable of dispersing the stress of the separator according to the prior art is provided with a separating portion (not shown) for inserting a member to be connected (a reinforcing bar or a steel rod) (510); A fastening body part 530 to which a connection screw part of the connection object member inserted through the separating part is connected to a screw connection part formed on an inner side thereof so that the connection object member is inserted and connected; And a cross-sectional reduction part 520 formed between the separation part 510 and the fastening body part 530.

At this time, in the TS coupler 500, a plurality of stress dispersion segments 511 are formed along the outer circumferential surface of the separator 510 for torque dispersion.

However, in the case of the TS coupler 500 capable of performing the stress dispersion of the separator according to the related art, the shape of the stress dispersive section 511 of the separator 510 and the shape of the spanner 120 are rectangular (or triangular) The insertion of the spanner 120 into the separating portion 510 is not easy unless the center of the spanner 120 and the center of the TS coupler 500 are exactly aligned with each other.

1) Korean Registered Patent No. 10-1144139 filed on August 1, 2011, entitled "

2) Korea Patent No. 10-0996121 filed on May 28, 2010, entitled "Automatic Coupler Fastening Device"

3) Korean Patent No. 10-0996122 filed on May 28, 2010, entitled " Mechanical Connection Method of Member Using Automatic Coupler and Coupler for Inducing Shear Failure "

4) Korean Registered Patent No. 10-0346094 filed on May 06, 2000, entitled "Reinforcing Device"

5) Korean Registered Patent No. 10-0435281 filed on November 30, 2001, entitled "Reinforcing Coupler and Device for Connecting it to Reinforcement"

6) Korean Registered Patent No. 10-0826143 filed on October 17, 2006, entitled "Coupler for Reinforced Tensile Strength"

7) Korean Patent No. 10-1023943 filed on Oct. 16, 2008, entitled "Pipe Connection Device, Connection Method, and Jaw Holder Jaw Manufacturing Method"

8) Korean Registered Patent No. 10-0953941 filed on September 09, 2009, entitled "Reinforced Coupler"

The technical problem to be solved by the present invention to solve the above problems is to form a cross-section of the upper and lower portions of the separation section (protrusion) of the TS coupler in a triangular or square shape of the cross-section, the whole or partial taper on the upper portion of the separation section It is to provide a coupler having a tapered section for the stress distribution of the separation portion, which can be easily inserted into the TS coupler by forming a full or partial taper on the upper portion of the separation portion.

Another technical problem to be solved by the present invention is to visually directly verify the magnitude of the rotational torque introduced by using a TS coupler in connecting a connecting member such as a rebar to a connecting member such as a coupler. It is to provide a coupler having a tapered section for dissipation stress distribution, which can greatly reduce the user's trouble, and improve the work productivity.

Another technical problem to be achieved by the present invention is to use a TS coupler, in order to prevent the phenomenon of TS coupler deformation or breakage of a spanner mounted on the TS coupler during the connection of the TS coupler. It is to provide a coupler having a tapered section for.

As a means for achieving the above-described technical problem, the coupler having a tapered section for the stress distribution of the separation part according to the present invention, in the torque shear coupler (TS coupler) for reinforcing bar connection, A separating part into which the connection object member is inserted while the screw connection part is not formed; A fastening body part connected to a screw connection part formed on an inner surface of the connection object member inserted through the separating part to insert the connection object member; And a cross-sectional reduction portion formed between the separating portion and the fastening body portion, wherein the separating portion is formed in a circular ring shape, and a tapered type bump (Taper Type Bump) for dispersing a plurality of stresses is formed continuously on the outer circumferential surface by torque. The acting stress is evenly distributed by the respective tapered sections to the separator in the form of a circular ring; The spanner is inserted into the separating part from the upper side to the lower side, and the spanner is a stress acting by torque when a plurality of section receiving portions are formed on the inner side of the head of the spanner so that the tapered section is inserted, and the torque is applied to the spanner. By each tapered section it is evenly distributed in the separating portion in the form of a circular ring; The engaging support piece is attached to the upper surface of the head of the torque introduction spanner so as to be supported on the upper surface of the separating part of the coupler.

Here, the tapered section formed in the separator (Taper Type Bump) is formed in a triangular or square shape of the upper and lower cross-section, the upper or lower cross-section, forming a full or partial taper on the upper portion of the triangular or square, the upper portion of the separator Edo partial taper is characterized in that it is formed.

Here, the tapered section formed in the separation section (Taper Type Bump) is characterized in that the taper is formed on the whole or part of the triangular or rectangular shaped section, and the taper is formed on the entire separation section.

Here, the end portion of the spanner is characterized in that it is formed by a spanner extension extending to be formed to surround the TS coupler.

In this case, the inner side of the separation portion is characterized in that the thread is not formed so as to form a screw portion for generating shear stress and tensile stress or to generate pure shear stress only.

According to the present invention, by forming a cross section of the upper and lower portions of the splitting section of the TS coupler in a triangular or square shape, which is a cross section, forming a full or partial taper on the top of the splitting section, and forming a full or partial taper on the top of the splitting section. The spanner can be easily inserted into the TS coupler.

According to the present invention, it is possible to automatically introduce a constant rotational torque using hydraulic pressure in connecting the connection member such as the reinforcing bar to the connection member such as the TS coupler.

According to the present invention, by using a TS coupler having a section reducing portion for inducing shear failure by introduction of a rotation torque, when a constant torque is introduced by the separating portion, the torque coupling can be separated from the fastening body portion, Can be visually confirmed, and quality control is greatly facilitated in joining members such as a plurality of reinforcing bars.

According to the present invention, the TS coupler is prevented from being deformed or damaged by the provided torque, so that quality control can be performed efficiently in the installation of the reinforcing bars and the introduction of the torque.

FIG. 1A is a cross-sectional view illustrating a method of connecting a plurality of reinforcing bars using a coupler according to a conventional technique.
1B is a perspective view illustrating a method of connecting a plurality of reinforcing bars using a coupler in which a fastening body portion and a separating portion are separated according to a conventional technique.
1C is an assembled perspective view of an automatic coupler coupling apparatus according to the prior art.
FIG. 1D is a perspective view showing a coupling between a TS coupler and a spanner according to a conventional technique. FIG.
1E is a diagram illustrating a TS coupler according to the related art.
FIG. 2 is a perspective view showing a coupling between a TS coupler and a spanner capable of performing stress dispersion of a separator according to a conventional technique.
3 is a perspective view illustrating a coupling between a TS coupler and a spanner having a tapered section for dispersing stress in an isolation part according to an exemplary embodiment of the present invention.
4 is a perspective and vertical sectional view of a TS coupler having a tapered section for dissipation stress distribution in accordance with an embodiment of the present invention.
FIG. 5 is a view illustrating in detail a TS coupler in a TS coupler having a tapered segment for stress dispersion in accordance with an embodiment of the present invention.
FIG. 6 is a view illustrating a state in which a spanner is coupled to a TS coupler having a tapered section for dispersing stresses in the separating part according to an exemplary embodiment of the present invention.
FIG. 7 is a diagram illustrating a spanner fastened to a TS coupler having a tapered section for dispersing stress in an isolation part according to an exemplary embodiment of the present invention. FIG.
FIG. 8 is a photograph illustrating a TS coupler with tapered sections for separation stress distribution in accordance with an embodiment of the present invention. FIG.
9 is a diagram illustrating the shape of the separation portion in the TS coupler having a tapered section for the separation stress distribution according to an embodiment of the present invention.
10 is an exploded perspective view of a bidirectional automatic connection device according to an embodiment of the present invention.
11 is a system diagram of a bidirectional automatic connecting device and a hydraulic pump unit according to an embodiment of the present invention.
12 is a constructional view of installing a TS coupler according to an embodiment of the present invention using a bidirectional automatic connection device.
13 is a flow chart for installing the TS coupler according to the present invention using a two-way automatic connection device.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

[TS coupler 600 according to an embodiment of the present invention]

FIG. 3 is a perspective view illustrating a coupling between a TS coupler and a spanner having a tapered section for dispersing stress in the separating part according to an embodiment of the present invention. Specifically, FIG. 3A is a perspective view illustrating the spanner, and FIG. ) Is a perspective view of a TS coupler with a tapered section, and FIG. 3C is a cutaway perspective view of a TS coupler with a tapered section.

4 is a perspective view and vertical sectional view of a TS coupler having a tapered section for dissipation stress distribution according to an embodiment of the present invention. Specifically, FIG. 4A is a perspective view of a TS coupler having a tapered section. 4B is a vertical sectional view of the TS coupler with tapered sections.

First, in the TS coupler 600 according to the embodiment of the present invention, as shown in FIGS. 3 and 4, the connection object member 320 (reinforcement or steel bar) is inserted in a state in which a screw connection part is not formed on the inner surface. Separation unit 610 is; A connecting body part 630 connected to a screw connection part formed on an inner surface of the connecting object member 320 inserted through the separating part, to which the connecting object member 320 is inserted and connected; And a cross-sectional reduction part 620 formed between the separation part 610 and the fastening body part 630.

Technical features of the TS coupler 600 according to an embodiment of the present invention, a plurality of tapered sections 611 or protrusions for stress distribution along the outer circumferential surface of the separation unit 610 for torque distribution, As such, the upper and lower sections of the upper and lower sections of the splitter 610 section 611 of the TS coupler 600 are formed in a triangular or quadrangular shape, which is a cross section, and the splitter 610 section 611 of the entire section or a part of a triangle or a quadrangle. A taper is formed, and a full or partial taper is also formed on the upper portion of the separator 610. Here, the forming angle of the taper may be selected in the range of 0.5 ㅀ to 80..

As described above, in the TS coupler according to the related art, the contact surface of the hexagonal nut-shaped separation part contacting the spanner 72 has a constant extension length L, as shown in FIGS. 1D and 1E. When the spanner 72 is brought into contact with the TS coupler 500 in this manner, when the spanner 72 rotates due to the torque provided at this time, excessive stress is applied to the inflection portions B1 and B2 of the separation part (particularly concentrated in B2). Concentration deforms the separation portion.

In other words, in the TS coupler 90 according to the related art, the separation part 93 is separated from the general nut because it is connected to the fastening body 91 by the cross-sectional reduction part 94 to be finally separated. The thickness T of the portion 93 is not largely formed in comparison with the thickness of the general nut. As a result, when torque acts on the separator 93, a phenomenon in which the separator is deformed may occur.

Accordingly, as shown in b) and FIG. 2 of FIG. 1E, the TS coupler 500 may have a circular ring shape, for example, in order to prevent the excessive stress from being concentrated on the separator. In order to maintain the same, a plurality of stress dispersion fragments 511 are continuously formed on the outer circumferential surface of the separating part 510, and the center of the spanner 120 is inserted into the separating part 510. If the centers of the TS couplers 500 do not coincide exactly, insertion is not easy.

Therefore, the upper and lower sections of the upper and lower sections of the splitter 610 of the TS coupler 600 according to the exemplary embodiment of the present invention are formed in a triangular or square shape as a cross-section, and the entire or partial taper is formed on the upper section of the splitter 610. In addition, by forming a partial taper on the upper portion of the separation unit 610, the spanner 120 can be easily inserted into the TS coupler 500.

In this case, the tapered section 611 is shown in a square or triangular shape, as shown in Figures 3 and 4, but may be formed in a variety of other forms.

In addition, a plurality of section receiving portions 122 are continuously formed on the head inner side surface C of the torque introduction spanner 120 so that the tapered section 611 is inserted, thereby tapering the section receiving portion 122. By allowing the segment 611 to be inserted, the stress caused by the torque when the torque is provided to the spanner 120 can be evenly distributed to the separating portion 610 in the form of a circular ring by each tapered section 611.

That is, as shown in FIG. 1E described above, a plurality of tapered segments 611 of the separating portion 510 coupled with the spanner 120 are continuously formed, so that the torque by the spanner 120 is tapered. As the compressive stress (F1) and the shear stress (F2) are evenly distributed to the tapered section (611) when it is transmitted to the section (611), there is no problem such that separation is deformed differently by the stress caused by torque. Will not.

In addition, as shown in FIGS. 3 and 4, the inner surface of the separation part 610 is formed with a screw part (shear stress and tensile stress generation) or a separation part without a thread part (pure shear stress generation only). By making it easy to determine whether the separation is separated can be easily confirmed whether the fastening force secured.

In addition, the end of the spanner 120, as shown in Figures 3 and 4, to be formed of a spanner extension 121 that is sufficiently extended to form a sufficient wrap around the connecting member, the fastening body portion ( In the TS coupler 600 including the cross-sectional reduction part 620 between the 630 and the separating part 610, the bottom surface of the spanner 120 is caught on the upper surface A of the fastening body part 630. As shown in FIG. 11, the bidirectional automatic connecting device 100 may be installed to be self-supporting on the TS coupler 600 which is a connecting member.

The self-supporting of the two-way automatic coupling device 100 is different in cross-sectional shape of the coupler separating portion and the fastening body, and at the same time the fastening body so that the spanner 120 can be caught on the upper surface (A) of the fastening body 630. This is because the upper surface A of the portion 630 is exposed, and the cross-sectional shape of the separating portion 610 and the fastening body 630 of the TS coupler 600 is the same, or the fastening body 630 of the TS coupler 600 is the same. When the upper surface A of the fastening body 630 is not exposed to the spanner 120, the spanner 120 does not become self-supporting, thus preventing this and implementing the present invention for self-reliance of the spanner 120. The spanner 120 according to the example may further form a locking support piece 123.

That is, the latch support piece 123 may be further formed on the inner side surface C of the spanner 120 so that the spanner 120 is supported on the upper surface of the coupler separator.

On the other hand, Figure 5 is a view showing in detail the separation portion of the TS coupler having a tapered section for the separation stress distribution in accordance with an embodiment of the present invention, Figure 5a) is a plan view of the separation portion, Figure 5b ) Is a cross-sectional view of the TS coupler, and FIG. 5C is a diagram specifically illustrating the shape of the tapered section.

Separation portion 610 of the TS coupler having a tapered section for the separation stress distribution according to an embodiment of the present invention, as shown in Figure 5a), the cross section of the upper and lower sections of the separation portion 610 Form a triangular or quadrangular shape as a cross section, form a full or partial taper on an upper portion of the separator 610, or a partial taper may also be formed on an upper portion of the separator 610. Here, the segment 611 of the separator 610 in the separation portion of the TS coupler having a tapered section for the stress distribution of the separation portion according to an embodiment of the present invention means a bump.

Figure 5c) illustrates the dimensions of the valleys and peaks of the tapered section 611 at the separation of the TS coupler with the tapered section for separation stress distribution according to an embodiment of the present invention, It is not limited.

Meanwhile, FIG. 6 is a view illustrating a state in which a spanner is coupled to a TS coupler having a tapered section for dispersing stress in a separating part according to an embodiment of the present invention. Specifically, FIG. 6A illustrates a TS coupler 600. FIG. 6B illustrates a state in which the TS coupler 600 is coupled to the spanner 120.

As shown in FIG. 6, the cross section of the upper and lower sections of the separating part 610 is formed in a triangular or square shape as a cross section, and a full or partial taper is formed on the upper part of the separating part 610. Alternatively, by forming a partial taper on the upper portion of the separation unit 610, the spanner 120 can be easily inserted into the TS coupler 600.

Meanwhile, FIG. 7 is a view illustrating a spanner fastened to a TS coupler having a tapered section for dispersing stress in a separating part according to an exemplary embodiment of the present invention. Specifically, FIG. 7A illustrates TS in the spanner 120. FIG. 7B is a plan view of the spanner 120, and c) of FIG. 7 is a cross-sectional view of the spanner 120. FIG.

As shown in FIG. 7, a spanner 120 fastened to a TS coupler having a tapered section for dispersing stress in the separation part introduces torque to insert the tapered section 611. A plurality of section receiving portions 122 are continuously formed on the inner side surface of the head spanner 120 so that the tapered section 611 is inserted into the section receiving portion 122, thereby providing torque to the spanner 120. When the stress due to the torque can be evenly distributed to the separating portion 610 of the circular ring shape by each tapered section 611.

FIG. 8 is a photograph illustrating a TS coupler having a tapered section for dissipation stress distribution according to an embodiment of the present invention, and FIG. 8 a) is shown in FIG. 2 according to the conventional technique described above. A TS coupler 500 is shown, and FIG. 8B illustrates a TS coupler 600 with a tapered segment 611 for dissipation stress separation in accordance with an embodiment of the present invention.

9 is a view illustrating the shape of the separation portion in the TS coupler having a tapered section for the separation stress distribution according to an embodiment of the present invention, Figure 9a) is a section (610) of the separation portion of the TS coupler ( 611) the upper and lower sections are formed in a triangular or quadrangular shape, which is a cross-sectional surface, and the entire or partial taper is formed on the upper part of the separation part 610, the upper or lower part of the section 611, the triangle or the square. A taper is formed. 9B shows that a taper is formed on the entirety or a portion of the triangular sections, and a taper is formed on the entire separation portion 610.

As a result, according to the exemplary embodiment of the present invention, the upper and lower sections of the upper and lower sections of the splitter 610 of the TS coupler 600 are formed in a triangular or quadrangular shape, which is a cross section, and the splitter 610 of the TS coupler 600 has a triangle shape. Alternatively, the whole or partial taper may be formed on the quadrangle, and the spanner 120 may be easily inserted into the TS coupler 600 by forming the full or partial taper on the separation unit.

[A member connection method using TS coupler 600 according to an embodiment of the present invention]

10 to 13, a member connection method using the TS coupler 600 according to an exemplary embodiment of the present invention will be described in detail.

10 is an exploded perspective view of a bidirectional automatic connecting device according to an embodiment of the present invention, Figure 11 is a system diagram of a bidirectional automatic connecting device and a hydraulic pump unit according to an embodiment of the present invention, bidirectional automatic connecting device 100 and It is a perspective view which shows that the hydraulic pump unit 200 is installed and used.

10 and 11, the bidirectional automatic coupling device 100 according to the embodiment of the present invention specifically includes a TS coupler 600 and rebars 310 having a tapered section for dispersing stress of the separation part. As an automatic connection device for connecting 320, a clamp 110, a torque introduction spanner 120, a clamp hydraulic cylinder 130, a stroke hydraulic cylinder 140, and the clamp It may include a hydraulic pump unit 200 for supplying hydraulic pressure to the hydraulic cylinder 130 and the stroke hydraulic cylinder 140.

The clamp 110 is attached to a member to be connected, for example, an upper reinforcing bar 320, and fixes the upper reinforcing bar 320 by a horizontal hydraulic pressure. The clamp 110 includes a clamp housing 113, And the housing 116 is integrally joined horizontally.

At this time, a pair of jaws 111 and 112 for pressing and fixing the connecting member 320 penetrating through the clamp housing 113 are formed in the inner space S in the longitudinal direction.

That is, a pair of jaws 111 and 112, which are arranged to fix the upper reinforcing bars 320 while being interlocked with each other in the inner space S of the clamp housing 113, And the horizontal hydraulic pressure is transmitted to the one side jaws 112 by the clamp hydraulic cylinders 130 so that the pair of jaws 111 and 112 are engaged with each other.

The clamp hydraulic cylinder 130 is disposed so as to pass through the clamp hydraulic cylinder support 115 mounted on the back surface B of the clamp housing 113 and to transmit the hydraulic pressure to the jaws 112 on one side, The cylinder 130 is accommodated inside the clamp hydraulic cylinder housing 116 and becomes invisible from the outside.

The clamp housing 113 and the clamp hydraulic cylinder housing 116 in which the pair of jaws 111 and 112 are mounted are integrally formed and the handle 117 is fixed to the upper surface of the clamp hydraulic cylinder housing 116 Respectively.

The stroke hydraulic cylinder 140 is for providing a torque to the torque introducing wrench 120 mounted on the connecting member and is connected to the rear side of the clamp hydraulic cylinder housing 116 by a connecting bolt 140, As shown in FIG.

A torque introducing spanner 120 is hinged to the front end of the stroke hydraulic cylinder 140 by a pin connecting hole 118 so that the torque introducing wrench 120 is rotated by the operation of the stroke hydraulic cylinder 140. [ (Pivoted) with respect to the pin connector 118.

The torque introducing spanner 120 is attached to the separating portion 610 of the TS coupler 600 and is connected to the clamp 110 mounted on the connection target member by the stroke hydraulic cylinder 140 .

That is, the torque introduction spanner 120 is mounted on the connection member, for example, a TS coupler 600 having a tapered section for dissipating stress distribution, as shown in FIG. 12 or 13 to be described later. The rotation torque is provided to the TS coupler 600 by the hydraulic pressure provided by the stroke hydraulic cylinder 140.

The clamp hydraulic cylinder 130 provides the hydraulic pressure to the pair of jaws 111 and 112 so that the clamp 110 fixes the upper reinforcing bar 320 which is the member to be connected, The torque introducing spanner 120 provides hydraulic pressure to the torque introducing spanner 120 so that the torque introducing spanner 120 fixes the TS coupler 600 as the connecting member. .

The hydraulic pump unit 200 is formed of an automatic connection device and a single system as shown in FIG. 11, and is for realizing a complex operation of transmitting hydraulic pressure to the automatic connection device.

That is, the bidirectional automatic connection device 100 according to the embodiment of the present invention is connected to the hydraulic pump unit 200, wherein the hydraulic pump unit 200 includes a sequence valve 210, a solenoid valve And may include first to third hydraulic pipes 230, 240 and 250, a pressure gauge 260, an operation switch 270, and a hydraulic pump.

The sequence valve 210 applies the set pressure to the clamp hydraulic cylinder 130 and the solenoid valve 220 applies the set pressure to the stroke hydraulic cylinder 140.

Specifically, when the sequence valve 210 firstly applies a predetermined pressure, for example, 200 bar to the clamp hydraulic cylinder 130 so that the clamp hydraulic cylinder 130 reaches the set pressure of 200 bar The hydraulic pressure of the clamp hydraulic cylinder 130 is maintained, and the hydraulic pressure is distributed to the stroke hydraulic cylinder 140 secondarily.

The first hydraulic pipe 230 is connected to the hydraulic hydraulic cylinder 130 to apply hydraulic pressure and the second hydraulic pipe 240 is connected to return hydraulic pressure from the hydraulic hydraulic cylinder 130 , And the third hydraulic pipe (250) is connected to apply the hydraulic pressure to the stroke hydraulic cylinder (140).

The pressure gauge 260 indicates a hydraulic pressure applied to the clamp hydraulic cylinder 130 and the stroke hydraulic cylinder 150 through the sequence valve 210 and the solenoid valve 220.

The operation switch 270 operates to open and close the sequence valve 210 and the solenoid valve 220.

Accordingly, the operator attaches the bidirectional automatic connection device 100 to the connection target members 310 and 320 and the TS coupler 600 as a connection member so that the connection target members 310 and 320, The TS coupler 600 as a connecting member can be automatically connected to each other.

Here, the lower reinforcing bar fixing jig 400 may be made of, for example, an iron plate, and is intended to show a form in which the lower reinforcing bar 310 is embedded in concrete for an experiment.

Further, it is apparent to those skilled in the art that the bidirectional automatic connection apparatus 100 according to the embodiment of the present invention can be used for coupling and connecting various members as well as couplers and reinforcing bars.

Meanwhile, referring to FIG. 12 and FIG. 13, a member connection method using a coupler capable of distributing rotation torque is as follows.

12 is a constructional view of installing a TS coupler according to an embodiment of the present invention using a bidirectional automatic connection device, and FIG. 13 is a flowchart illustrating installing a TS coupler according to the present invention using a bidirectional automatic connection device.

First, a connection member according to an embodiment of the present invention is a TS coupler 600, and the connection object members 310 and 320 will be described in the case of reinforcing bars or steel bars.

That is, as shown in FIG. 12, the two-way automatic connection device 100 is mounted on the TS coupler 600 and the connection member 310 and 320 as the connection member, and is connected to the hydraulic pump unit 200. Supply hydraulic pressure to the bidirectional automatic connecting device 100, respectively.

First, the TS coupler 600 according to the embodiment of the present invention is first connected to the connecting object member 310, and then, the connecting object member 320, both of the jaws (111, 112) of the clamp For example, the upper reinforcing bar is fixed so as to be compressed and bite, the torque introduction spanner 120 by the stroke hydraulic cylinder 140 may be mounted on the separating portion 610 of the TS coupler 600 as the connection member. have.

That is, the clamp 110 is engaged with the upper reinforcing bar 320, which is the member to be connected, by the hydraulic pressure provided to the clamp hydraulic cylinder 130, and is held by the separating unit 610 of the TS coupler 600 Hydraulic pressure is applied to the stroke hydraulic cylinder 140, which is hingedly connected to the torque introducing spanner 120, to provide a rotating torque. Accordingly, the torque introduction spanner 120 is coupled to the separating hydraulic part by being connected to the stroke hydraulic cylinder 140 and the connection bolt 140 while the stroke hydraulic cylinder 140 is extended in a fixed state without being rotated. The clamp 110 is rotated clockwise.

As a result, when the rotational torque provided to the separating portion of the TS coupler becomes more than a predetermined level while the upper reinforcing rod 320 bitten by the clamp 110 is rotated, the separating portion 610 of the connecting member TS coupler 600 is fastened. It is separated from the body 630. That is, the torque introducing wrench 120 is not rotated by using the TS coupler 600, which is a connecting member, and the connecting object is rotationally connected to the connecting member.

In addition, the bottom surface of the torque introduction spanner 120 is caught on the fastening trunk 630 of the TS coupler 600, so that the automatic connection device can be mounted on the coupler, which is a connection member. Two-way automatic connecting device can greatly improve workability and constructability. At this time, when the latching piece is used, the automatic connecting device can be mounted more stably so as to be able to stand on the coupler which is the connecting member.

As a result, according to the exemplary embodiment of the present invention, in connecting the connection member such as the rebar to the connection member such as the TS coupler, it is possible to automatically introduce a constant rotational torque using hydraulic pressure. In addition, according to an embodiment of the present invention, by using a TS coupler having a cross-sectional reduction portion that induces shear failure by introducing a rotational torque, when a constant torque is introduced by the separating portion to be separated from the fastening body portion Verification of torque introduction can be confirmed with the naked eye, and accordingly, quality control becomes very easy in the joining work of many steel bars. Further, according to the embodiment of the present invention, the TS coupler is prevented from being deformed or damaged by the provided torque, so that the quality control can be performed efficiently in the reinforcement mounting and torque introduction.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Two-way automatic connection device
110: Clamp
111, 112: Joe (JAW)
113: Clamp housing
114: Connecting bolt
115: clamp hydraulic cylinder
116: Clamp hydraulic cylinder housing
120: Torque introduction spanner (Spanner)
121: spanner extension part
122:
123:
130: Clamp hydraulic cylinder
140: Stroke Hydraulic Cylinder
200: Hydraulic pump unit
210: Sequence Valve (Sequence Valve)
220: Solenoid Valve (Solenoid Valve)
230: First hydraulic piping
240: Second hydraulic piping
250: Third hydraulic piping
260: Pressure gauge
270: Operation switch
310, 320: members to be connected (reinforcing bars and steel rods, or pipes and bolts)
400: Jig for fixing lower reinforcement
600: TS coupler
610: separator of TS coupler
611: tapered intercept
620: reduced section of the TS coupler
630: fastening body portion of TS coupler

Claims (5)

In the Torque Shear Coupler (TS Coupler)
A separating part into which the connection object member is inserted while the screw connection part is not formed on the inner side;
A fastening body part connected to a screw connection part formed on an inner surface of the connection object member inserted through the separating part to insert the connection object member; And
Cross-section reduction portion formed between the separating portion and the fastening body portion
, ≪ / RTI &
The separating portion is formed in the shape of a circular ring, the tapered section (Taper Type Bump) for forming a plurality of stress distribution on the outer circumferential surface is formed by the tapered section of the separation portion of the circular ring form by the stress acting by the torque Evenly distributed over;
Spanner is inserted into the separating portion from the upper side to the lower side, and the spanner is formed by a plurality of section receiving portions continuously formed on the inner side of the head of the spanner so that the tapered section is inserted and acts by torque when torque is provided to the spanner. Stress is evenly distributed by the respective tapered segments to the circular ring shaped separator;
A coupler having a tapered section for dissipating stress distribution, characterized in that the engaging support piece is attached to the upper surface of the head of the torque introduction spanner so as to be supported on the upper side of the separating part of the coupler. The method of claim 1,
Taper type bumps formed on the separating part (Taper Type Bump) is formed in a triangular or square shape of the upper and lower cross-sections, and forms a full or partial taper on the triangle or quadrangle, and also part of the upper part of the separation A coupler having a tapered section for dissipation stress distribution, characterized in that the taper is formed. The method of claim 1,
Taper type bumps formed in the separating part (Taper Type Bump) is a taper for separating the stress distribution of the separation portion, characterized in that to form a taper on the whole or part of the triangular or rectangular shaped section, Coupler with form intercept. The method of claim 1,
An end portion of the spanner is a coupler having a tapered section for stress separation of the separation portion, characterized in that formed by the spanner extension extending to be formed to surround the TS coupler. The method of claim 1,
A coupler having a tapered section for dispersing stress of the separating part, wherein the inner side of the separating part forms a thread part generating shear stress and tensile stress, or the thread part is not formed so as to generate pure shear stress only.

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