KR20210009933A - One-touch-type rebar coupler - Google Patents

Abstract

An objective of the present invention is to provide a one-touch type reinforcing bar coupler which can fix a reinforcing bar at a position where a reinforcing bar coupler holds the reinforcing bar. According to an embodiment of the present invention, the one-touch type reinforcing bar coupler comprises: a sleeve (20) formed in a cylindrical shape; a shooting spring (30) which is inserted into and installed on the outside of the sleeve (20), and applies a restoring force in an extending direction; a trigger unit (40) mounted on the sleeve (20) to maintain the shooting spring (30) in a contracting state, and released from the sleeve (20) when deformed by entry of the reinforcing bar; a clash sleeve (60) which has a first inner circumferential surface (61), is arranged in a housing (50), and is bounced and pushed by an extension action of the shooting spring (30); and a plurality of claws (70) having a first wedge protrusion (72) formed on the inside thereof, wherein a first outer circumferential surface (71) has a diameter becoming larger towards the outside and is surrounded by the first inner circumferential surface (61).

Description

One-touch-type rebar coupler

The present invention relates to a one-touch type reinforcing bar coupler that, when connecting reinforcing bars and other reinforcing bars, to complete the connection with a single operation of inserting reinforcing bars.

In general, reinforcing bars are used in reinforced concrete structures, and reinforcing bars need to be extended in length at the construction site or construction situation.

Conventionally, a reinforcing bar coupler is used to connect reinforcing bars and other reinforcing bars.

The conventional reinforced coupler can be configured including a sleeve, a claw, and a spring.

The sleeve may be provided in a cylindrical shape, and may have an inner space having a narrow side to which the reinforcing bar enters and a wide side to the other side.

The claw is provided as a plurality of pieces, a wedge-shaped protrusion is formed on an inner circumferential surface, and an outer circumferential surface may be formed to be inclined to correspond to the shape of the inner circumferential surface of the sleeve.

The spring acts on a restoring force in the direction of pushing the claw within the sleeve.

The configuration of the conventional rebar coupler configured as described above accommodates the reinforcing bar by opening the claw when the reinforcing bar enters the sleeve, and pushes the claw with the restoring force of the spring when the reinforcing bar stops.

As the claw is pushed, the claw holds the reinforcing bar according to the shape inclined to the inner circumferential surface of the sleeve, whereby the reinforcing bar can be fixed to the reinforcing bar coupler.

However, the conventional rebar coupler as described above may have the following problems.

There is a structural problem in that the claw is forced to be pushed in order to realize the force to hold it on the reinforcing bar, and the pushed movement displacement can be from several millimeters to several centimeters. That is, the moving displacement means that the reinforcing bar can be moved in the direction in which it is separated.

As described above, the conventional reinforcing bar coupler has a problem in that it can move in the retracted direction immediately after inserting the reinforcing bar.

KR 10-1654145 B1 KR 10-1683143 B1

Therefore, the technical problem to be achieved by the present invention is to provide a one-touch type reinforcing bar coupler that allows the rebar to be fixed at the held position without moving in the direction in which the rebar is separated immediately after the rebar enters the rebar coupler and the rebar coupler grabs the rebar. There is a purpose.

One-touch type reinforced coupler according to an embodiment of the present invention for achieving the above technical problem, a sleeve 20 formed in a cylindrical shape; A shooting spring 30 fitted on the outer surface of the sleeve 20 and acting on a restoring force in an expanding direction; A trigger unit (40) mounted on the sleeve (20) to keep the shooting spring (30) in a contracted state, and dismounted from the sleeve (20) when deformed by the entry of the reinforcing bar; A clash sleeve (60) having a first inner circumferential surface (61) and disposed inside the housing (50) and being repelled by the expansion action of the shooting spring (30); And a plurality of claws 70 having a first outer circumferential surface 71 having a larger diameter toward the outside and surrounded by the first inner circumferential surface 61 and having a first wedge protrusion 72 formed therein.

In addition, a one-touch type reinforced coupler according to an embodiment of the present invention includes a socket 10 having a pocket 12 formed to accommodate the sleeve 20; A housing (50) accommodating the shooting spring (30) and the plurality of claws (70) and installed in the socket (10); And an end bolt 90 installed on the outside of the housing 50 to pass through the through hole 92 in the center and preventing the plurality of claws 70 from being separated.

In addition, in the one-touch type reinforced coupler according to an embodiment of the present invention, the sleeve 20 may have a mount hole 22 for installing the trigger unit 40 in a direction crossing the sleeve 20. have.

In addition, the mount hole 22 of the one-touch type reinforcing bar coupler according to the embodiment of the present invention may be formed in an L shape when the sleeve 20 is viewed from the side and one side is opened to form the guide 23. .

In addition, the trigger unit 40 of the one-touch type reinforcing bar coupler according to an embodiment of the present invention includes a body 41 provided of a flexible material; And rods 42 protruding to both sides of the body 41.

In addition, the body 41 of the one-touch type reinforced coupler according to the embodiment of the present invention may be deformed when an external force greater than the restoring force acting as the shooting spring 30 acts.

In addition, in the one-touch type reinforcing bar coupler according to the embodiment of the present invention, the body 41 may have a coil shape.

In addition, the one-touch type reinforcing bar coupler according to an embodiment of the present invention may include a detail ring 80 installed to allow the plurality of claws 70 to perform inclined motion.

In addition, the detail ring 80 of the one-touch type reinforcing bar coupler according to an embodiment of the present invention may be made of a flexible material.

In addition, in the one-touch type reinforcing bar coupler according to the embodiment of the present invention, the groove 81 is formed in the detail ring 80 in a circular shape, and the plurality of claws 70 are spaced apart. ) Can be installed.

In addition, the one-touch type reinforcing bar coupler according to an embodiment of the present invention includes: a pushing unit 100 disposed outside the end bolt 90 and exerting a restoring force in an expanding direction; The second outer circumferential surface 111 has a smaller diameter toward the outside, and a plurality of fasteners 110 having a second wedge protrusion 112 formed therein; And an end cap 120 installed on the end bolt 90 and having a diameter smaller toward the outside of the second inner circumferential surface 122 and in close contact with the second outer circumferential surface 111.

Details of other embodiments are included in the detailed description and drawings.

In the one-touch type rebar coupler according to the embodiment of the present invention made as described above, when the reinforcing bar is inserted into the rebar coupler, the reinforcing bar is caught at the position where the reinforcing bar deforms the trigger unit 40, and can be fixed without being pushed out of the held position. have.

1 to 3 are assembly drawings, separate drawings, and assembly cross-sectional views for explaining the configuration of a one-touch type reinforcing bar coupler according to an embodiment of the present invention.
4 is a view for explaining an example in which a shooting spring is loaded in a one-touch type reinforced coupler according to an embodiment of the present invention.
5 is a view for explaining the operation of the one-touch type reinforcement coupler according to an embodiment of the present invention.
6 is a view for explaining an example for fixing reinforcing bars on both sides of a socket based on a socket in a one-touch type reinforcing bar coupler according to an embodiment of the present invention.
7 is a view for explaining another example of a sleeve in the one-touch type reinforced coupler according to an embodiment of the present invention.
8 is a view for explaining a one-touch type reinforcement coupler according to another embodiment of the present invention.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are illustratively shown to aid understanding of the present invention, and it should be understood that the present invention may be variously modified and implemented differently from the embodiments described herein. However, when it is determined that a detailed description of a related known function or component may unnecessarily obscure the subject matter of the present invention while describing the present invention, the detailed description and detailed illustration thereof will be omitted. In addition, the accompanying drawings are not drawn to scale to aid understanding of the invention, but the sizes of some components may be exaggerated.

Meanwhile, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

On the other hand, terms to be described later are terms set in consideration of functions in the present invention and may vary according to the intention or custom of the producer, so the definition should be made based on the contents throughout the present specification.

The same reference numerals refer to the same elements throughout the specification.

Hereinafter, a one-touch type reinforcing bar coupler according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. 1 to 3 are assembly drawings, separate drawings, and assembly cross-sectional views for explaining the configuration of a one-touch type reinforced coupler according to an embodiment of the present invention. 4 is a view for explaining an example in which a shooting spring is loaded in a one-touch type reinforced coupler according to an embodiment of the present invention.

The one-touch type reinforced coupler according to the embodiment of the present invention may include a sleeve 20, a shooting spring 30, a trigger unit 40, a clash sleeve 60, and a plurality of claws 70. .

The sleeve 20 may be formed in a cylindrical shape, and a second male screw 21 may be formed on the outer periphery.

The shooting spring 30 may be installed by being fitted on the outside of the sleeve 20 and may act as a restoring force in an expanding direction.

The trigger unit 40 is mounted on the sleeve 20 as shown in FIGS. 3 and 4 to maintain the shooting spring 30 in a contracted state.

In addition, as shown in FIG. 5, the trigger unit 40 may be deformed by the entry of the reinforcing bar 200, thereby being dismounted from the sleeve 20.

The clash sleeve 60 has a first inner circumferential surface 61 and can be repelled and pushed out by an expanding action of the shooting spring 30.

The plurality of claws 70 may have a larger diameter as the first outer circumferential surface 71 goes outward and may be surrounded by the first inner circumferential surface 61. In addition, the plurality of claws 70 may have a first wedge protrusion 72 formed inside.

The one-touch type reinforcing bar coupler according to the embodiment of the present invention configured as described above will be described with reference to FIG. 5. 5 is a view for explaining the operation of the one-touch type reinforcement coupler according to an embodiment of the present invention.

When the reinforcing bar 200 is inserted into the reinforcing bar coupler, the reinforcing bar 200 may pass through the plurality of claws 70 and contact the trigger unit 40.

If the reinforcing bar 200 continues to enter, the trigger unit 40 may be deformed and may be separated from the sleeve 20.

When the trigger unit 40 is deformed, the length is shortened, and thus the detention of the shooting spring 30 can be released.

As soon as the detention is released, the shooting spring 30 expands like a bouncing so that the clash sleeve 60 can be pushed out in a very short time.

The clash sleeve 60 may interact with the plurality of claws 70 while being pushed by the action of the shooting spring 30.

The plurality of claws 70 may be constricted due to the clash sleeve 60 to hold the reinforcing bar 200.

The time from the deformation of the trigger unit 40 to the constriction of the plurality of claws 70 is made in an instant, so that the reinforcing bar 200 is in a few words in the one-touch type rebar coupler according to the embodiment of the present invention. Is caught immediately after insertion, and can be fixed without being pushed in the direction retracting from the held position.

That is, the conventional rebar coupler has a problem in that the spring expands and the claw moves by a specific distance to implement the force to hold the reinforcing bar, but the one-touch type rebar coupler according to the embodiment of the present invention holds the rebar 200 The biggest difference is that the rebar 200 can stay at that location.

In addition, a one-touch type reinforced coupler according to an embodiment of the present invention may include a socket 10, a housing 50, and an end bolt 90, as shown in FIGS. 1 and 2.

The socket 10 may have a pocket 12 formed to accommodate the sleeve 20.

The socket 10 may have the pockets 12 formed on both sides of the joint 11 as a reference, and a first female screw 14 may be formed inside the pocket 12. A first male screw 15 may be formed on the outer circumferential surface of the sleeve 20.

A first driver hole 13 may be formed in the joint 11, and the first driver hole 13 may rotate the socket 10 using a driver tool.

The first female screw 14 may be fastened to the second male screw 21 of the sleeve 20, thereby fixing the sleeve 20 to the socket 10.

Further, as shown in Fig. 6, sleeves 20 can be provided on both sides of the socket 10. 6 is a view for explaining an example for fixing reinforcing bars on both sides of a socket based on a socket in a one-touch type reinforcing bar coupler according to an embodiment of the present invention.

The housing 50 may accommodate the shooting spring 30 and the plurality of claws 70 therein and may be installed in the socket 10.

The housing 50 may have second and third female screws 51 and 52 formed on both sides of the inner circumferential surface.

1 and 3, the first male screw 15 of the socket 10 and the second female screw of the housing 50 may be fastened, thereby installing the housing 50 to the socket 10. I can. On the other hand, as shown in Fig. 6, the housing 50 can be installed on both sides of the socket 10.

The end bolt 90 may be installed outside the housing 50, and a through hole 92 may pass through the center. The end bolt 90 may be installed in the housing 50 to prevent the plurality of claws 70 from being separated.

As shown in FIG. 5, the through hole 92 may pass through the reinforcing bar 200.

In addition, the end bolt 90 may form a first male screw 91 on the outer circumferential surface. The first male screw 91 may be fastened to the second female screw 51 of the socket 50.

Meanwhile, as shown in FIGS. 2 and 3, the sleeve 20 may have a mount hole 22 for installing the trigger unit 40 in a direction crossing the sleeve 20. .

The trigger unit 40 may thereby face the reinforcing bar 200 when the reinforcing bar 200 enters.

On the other hand, the mount hole 22 may be formed as large as possible within an allowable range, whereby the trigger unit 40 may be deformed and detached more easily when detached from the sleeve 20.

On the other hand, as shown in FIG. 7, the mount hole 22 may be formed in an L-shape when the sleeve 20 is viewed from the side and one side is opened to form the guide 23. 7 is a view for explaining another example of a sleeve in the one-touch type reinforced coupler according to an embodiment of the present invention.

Accordingly, when the trigger unit 40 is installed on the sleeve 20, it can be more easily installed by rotating it after entering straight, thereby increasing the convenience of manufacturing the one-touch type reinforcing bar coupler according to the embodiment of the present invention.

On the other hand, the trigger unit 40 may include a body 41 and a rod 42.

The body 41 may be made of a flexible material, whereby it may be deformed such as bent when an external force is applied, and the length of the trigger unit 40 may be shortened by being bent.

As shown in FIGS. 2 and 3, the rod 42 may be configured to protrude to both sides of the body 41, and may be installed in the mount hole 22 of the sleeve 20.

On the other hand, the body 41 may be deformed when an external force greater than a restoring force acting as the shooting spring 30 acts. Thereby, the shooting spring 30 can maintain the contracted state.

To further explain this, the body 41 may be deformed, such as being bent when an external force greater than the threshold value is applied, and the threshold value may be a value greater than the expansion restoring force of the shooting spring 30. Thereby, it is possible to suppress the arbitrary expansion of the shooting spring 30.

On the other hand, the body 41 may have a coil shape. As a result, when the body 41 is unfolded, the length becomes longer, so that it can be deformed more easily than when the length is short.

In addition, the one-touch type reinforcing bar coupler according to an embodiment of the present invention may include a detail ring 80 as shown in FIGS. 2 and 3.

The detail ring 80 may be installed so that the plurality of claws 70 can perform an inclined movement. That is, the posture of the claw 70 may be inclined in the detail ring 80 to hold the reinforcing bar 20.

In addition, the detail ring 80 prevents the arrangement of the plurality of claws 70 from being randomly disturbed, so that each claw 70 can be positioned at the correct position as designed.

When the claw 70 is positioned at a position symmetrical with respect to the center of the one-touch type reinforcing bar coupler according to the embodiment of the present invention, the gripping force can be implemented as the designer intended. As described above, the one-touch type reinforcing bar coupler according to the example can arrange each claw 70 at a position intended by the designer without being disturbed.

Meanwhile, the detail ring 80 may be made of a flexible material. As a result, the detail ring 80 can be deformed when an external force is applied, such as distortion, and when the external force is released, it can be restored to an initial state.

That is, the detail ring 80 maintains a state in which the plurality of claws 70 are open when the clash sleeve 60 and the claw 70 do not interact, and the claw sleeve 60 and the claw ( When 70) interacts, the plurality of claws 70 may be deformed to be closed.

On the other hand, the detail ring 80 may have a groove 81 formed in a circular shape, and the plurality of claws 70 may be installed in the groove 81 with a gap.

Thereby, when installing a plurality of claws 70 on the detail ring 80, the claw 70 can be assembled by a simple operation of inserting the claw 70 into the groove 81, and thus manufacturing is convenient. In addition, since the groove 81 is formed in a circular shape, a plurality of claws 70 can be arranged in a circular shape.

In addition, the one-touch type reinforcing bar coupler according to an embodiment of the present invention may include a pushing unit 100, a fastening 110, and an end cap 120, as shown in FIG. 8. 8 is a view for explaining a one-touch type reinforcement coupler according to another embodiment of the present invention.

As shown in FIG. 8, the end bolt 90 can form a fourth male screw 95, and a second driver hole 93 can be formed in an outer end surface.

The second driver hole 93 may be used when the end bolt 90 is fastened to the housing 50, and the end bolt 90 may be rotated using a tool such as a driver.

The pushing unit 100 may be disposed outside the end bolt 90 and may exert a restoring force in an expanding direction. In addition, the pushing unit 100 may be symmetrically disposed on both sides of the socket 10 with respect to the socket 10.

The pushing unit 100 may be configured with, for example, a spring washer, a coil spring, or the like.

In the plurality of fasteners 110, the second outer circumferential surface 111 may have a smaller diameter toward the outside, and a second wedge protrusion 112 may be formed inside. In addition, the plurality of fasteners 110 may be symmetrically disposed on both sides of the socket 10 with respect to the socket 10.

The end cap 120 may be installed on the end bolt 90, and the second inner circumferential surface 122 may have a smaller diameter toward the outside. The second inner peripheral surface 122 may be in close contact with the second outer peripheral surface 111. Further, the end cap 120 may be symmetrically disposed on both sides of the socket 10 with respect to the socket 10.

The end cap 120 may have a fourth female screw 121 formed on the inner circumferential surface thereof, thereby fastening the end cap 120 to the end bolt 90 by fastening it with the fourth male screw 95 of the end bolt 90. Can be installed.

Accordingly, the one-touch type reinforcing bar coupler according to the embodiment of the present invention is further configured of the pushing unit 100, the fastening 110, and the end cap 120 after fixing the reinforcing bar 200 by inserting it into the rebar coupler. It is possible to hold the reinforcing bar 200 with a strong force.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. I will be able to.

Therefore, the embodiments described above should be understood as illustrative and non-limiting in all respects, and the scope of the present invention is indicated by the claims to be described later, and derived from the meaning and scope of the claims and the concept of equivalents thereof. All changes or modifications should be construed as being included in the scope of the present invention.

The one-touch type reinforcing bar coupler according to an embodiment of the present invention can be used to connect two reinforcing bars in a line.

10: socket 11: joint
12: pocket 13, 93: first, second driver hole
14, 51, 52, 121: 1st, 2nd, 3rd, 4th female thread
15, 21, 91, 95: 1st, 2nd, 3rd, 4th male thread
20: sleeve 22: mount hole
23: guide 30: shooting spring
40: trigger unit 41: body
42: rod 50: housing
60: clash sleeve 61, 122: first, second inner peripheral surface
70: claw 71, 111: first, second outer peripheral surface
72, 112: 1st and 2nd wedge protrusion
80: detail ring 81: groove
90: end bolt 92: through hole
100: pushing unit 110: fastening
120: end cap 200: rebar

Claims (11)

A sleeve 20 formed in a cylindrical shape;
A shooting spring 30 fitted on the outer surface of the sleeve 20 and acting on a restoring force in an expanding direction;
A trigger unit (40) mounted on the sleeve (20) to keep the shooting spring (30) in a contracted state, and dismounted from the sleeve (20) when deformed by the entry of the reinforcing bar;
A clash sleeve (60) having a first inner circumferential surface (61) and being pushed back by the expansion action of the shooting spring (30); And
The first outer circumferential surface 71 has a larger diameter toward the outside and is surrounded by the first inner circumferential surface 61, and a plurality of claws 70 having a first wedge protrusion 72 formed therein;
One-touch type rebar coupler comprising a.
The method of claim 1,
A socket 10 having a pocket 12 formed to accommodate the sleeve 20;
A housing (50) accommodating the shooting spring (30) and the plurality of claws (70) and installed in the socket (10); And
An end bolt (90) installed on the outside of the housing (50) to pass through a through hole (92) in the center to prevent separation of the plurality of claws (70);
One-touch type rebar coupler comprising a.
The method according to claim 1 or 2,
The sleeve 20 is formed with a mount hole 22 for installing the trigger unit 40 in a direction crossing the sleeve 20;
One-touch type rebar coupler comprising a.
The method of claim 3,
The mount hole 22 is formed in an L-shape when the sleeve 20 is viewed from the side and one side is opened to form a guide 23;
One-touch type rebar coupler comprising a.
The method of claim 1,
The trigger unit 40,
A body 41 made of a flexible material; And
Rods 42 protruding to both sides of the body 41;
One-touch type rebar coupler comprising a.
The method of claim 5,
The body 41 forms a coil shape;
One-touch type rebar coupler comprising a.
The method of claim 5,
The body 41 is deformed when an external force greater than the restoring force acting as the shooting spring 30 acts;
One-touch type rebar coupler comprising a.
The method according to claim 1 or 2,
A detail ring 80 installed to enable the plurality of claws 70 to perform inclined movement;
One-touch type rebar coupler comprising a.
The method of claim 8,
The detail ring 80 is made of a flexible material;
One-touch type rebar coupler comprising a.
The method of claim 8,
The detail ring 80 has a groove 81 formed in a circular shape,
The plurality of claws (70) is installed in the groove (81) with a gap;
One-touch type rebar coupler comprising a.
The method of claim 1,
A pushing unit 100 disposed outside the end bolt 90 and acting a restoring force in an expanding direction;
The second outer circumferential surface 111 has a smaller diameter toward the outside, and a plurality of fasteners 110 having a second wedge protrusion 112 formed therein; And
An end cap 120 installed on the end bolt 90, the second inner circumferential surface 122 having a smaller diameter toward the outside and in close contact with the second outer circumferential surface 111;
One-touch type rebar coupler comprising a.

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