WO2017026563A1

WO2017026563A1 - Connector for eccentrically connecting rebars for pc block or concrete and method for connecting rebars using same

Info

Publication number: WO2017026563A1
Application number: PCT/KR2015/008716
Authority: WO
Inventors: 한상도
Original assignee: 한상도
Priority date: 2015-08-12
Filing date: 2015-08-20
Publication date: 2017-02-16
Also published as: KR101595101B1

Abstract

The present invention relates to a connector for eccentrically connecting rebars for a PC block or concrete and a method for connecting rebars using the same, wherein the connector has a novel structure for allowing two rebars, which do not line up in a straight line, to be connected to each other.

Description

Rebar eccentric connector for PC block or concrete and rebar connection method using the same

The present invention relates to a rebar eccentric connector for a PC block or concrete for a new structure that is capable of interconnecting two reinforcing bars not arranged in a straight line, and a method of connecting the reinforcing bars using the same.

In general, when making a reinforced concrete structure in a construction site, install the formwork, reinforcing the reinforcement in the interior of the formwork, and then placed and hardened concrete in the formwork was constructed.

In this case, since the rebar is manufactured to a certain length, when a long rebar is required, the reinforcing bars are interconnected using reinforcing bars shown in a number of preceding documents, including Patent Publication No. 10-0411242 or Patent Publication No. 10-2002-0081966. I use it.

By the way, when manufacturing the structure in this way, it takes a lot of time, recently, in the factory reinforcing the reinforcing bar in the interior of the mold using a PC block produced by injecting and hardening the concrete of the mold wall or slab of the building Construction method is widely used.

As such, when using the PC block, it is possible to reduce the time required for reinforcement of the reinforcement or concrete pouring and hardening, there is an advantage that can significantly reduce the construction time of the concrete structure.

On the other hand, the produced PC block is provided on both sides so that the reinforcing bars extend laterally, by welding the reinforcing bars to each other, so that several PC blocks are firmly fixed to each other.

However, as described above, when welding the reinforcing bars of the PC block in the lateral direction in the field, it takes not only a lot of time, but also a problem that may cause a safety accident by the welder.

Therefore, recently, as described above, a method of interconnecting reinforcing bars protruding to the circumferential surface of each PC block using reinforcing bar connectors has been studied.

However, these reinforcing bar connectors can be connected only when the reinforcing bars are arranged in a line with each other.

However, rebars extending to both sides of the PC block may not be accurately positioned in the manufacturing process of the PC block.

Therefore, when connecting the reinforcing bars extending to the sides of the two PC blocks, the reinforcing bars extending to the sides of each PC block are not positioned in a straight line. The problem arises that the connection becomes very limited.

This problem has occurred not only when connecting the reinforcing bars of the PC block described above, but also when connecting the reinforcing structures installed inside the formwork in a pre-assembled state from the outside using the reinforcing connector.

Therefore, there is a need for a new method to solve this problem.

The present invention is to solve the above problems, to provide a new structure of the PC block or concrete reinforced eccentric connector and the method of connecting the reinforcement using the same structure that can be connected to the two reinforcing bar not arranged in a straight line have.

The present invention for achieving the above object, as a reinforcing bar connector interconnecting the first and second reinforcing bars (1,2) disposed to face each other, a fixed block fixedly coupled to the front end of the first reinforcing bar (1) 10, the support cylinder 20 fixedly coupled to the first fixed block 10, the support cylinder 20 is rotatably coupled to the interior of the second reinforcing bar 2 is fixedly coupled Comprising a rotating block 30, wherein the first reinforcing bar (1) and the second reinforcing bar (2) is a PC block, characterized in that coupled to the eccentric to the fixed block 10 and the rotating block (30) Rebar eccentric connectors for concrete are provided.

According to another feature of the invention, the male screw (1a, 2a) is formed on the front end of the first and second reinforcing bars (1, 2), the fixed block 10 has a circular thread formed with a male screw (11a) on the peripheral surface Coupling portion 11 of the formed is formed, the fixing block 10 is formed so that the coupling hole 12 is screwed to the front end of the first reinforcing bar (1) to form an eccentric with the coupling portion 11, The support cylinder 20 extends in the front-rear direction and has a tubular shape in which the rotation block 30 is inserted therein, and the locking block 30 is caught on the inner circumferential surface of the support cylinder 20 at the proximal end and the distal end of the support cylinder 20. A female screw 21 is formed to be screwed to the outside of the jaw 22 and the coupling part 11, respectively, and the rotary block 30 extends in the front-rear direction and the outer diameter corresponds to the inner diameter of the support cylinder 20. Combination hole 31 is configured in the form of a circular end pipe is screwed to the front end of the second reinforcing bar (2) is eccentric Reinforcing bar eccentric connector for the PC block or concrete, characterized in that formed so as to penetrate the front and rear surfaces.

According to another feature of the invention, the male screw (2a) formed in the front end portion of the second reinforcing bar (2) and the female screw (31a) formed in the coupling hole 31 of the rotary block 30, and the coupling portion 11 The female screw 21 of the male screw 11a and the support cylinder 20 formed in the opposite direction of the screw thread is configured to each other, and the friction member which is in close contact with the inner peripheral surface of the support cylinder 20 on the outer circumferential surface of the rotary block 30 ( Reinforced eccentric connector for a PC block or concrete is provided, characterized in that 32) is provided.

According to another feature of the present invention, as a method of interconnecting two reinforcing bars using the above-described PC block or reinforcing rod eccentric connector for concrete, screw the fixing block 10 to the front end of the first reinforcing bar (1) Combining and fixing, screwing and fixing the distal end of the second reinforcing bar 2 to the rotary block 30 inserted into the support cylinder 20, and the first and second reinforcing bars 1 And, so that the front end of the two close to each other after the support cylinder 20 by rotating the support cylinder 20 is characterized in that it comprises the step of screwing to the engaging portion 11 of the fixed block 10 Rebar connection method is provided.

PC block or concrete reinforcing eccentric connector according to the present invention is a fixed block 10 is fixedly coupled to the front end of the first reinforcement (1), and the support cylinder 20 fixedly coupled to the first fixed block (10) and It is composed of a rotary block 30 is rotatably coupled to the interior of the support cylinder 20 and the front end of the second reinforcing bar 2 is fixed, the first reinforcing bar (1) and the second reinforcing bar (2) Is fixed to the fixed block 10 and the rotating block 30 to be eccentric.

Therefore, when the first and second reinforcing bars (1, 2) are not located in a straight line, by rotating the fixed block 10 and the rotating block 30, two reinforcing bars (1, not located in a straight line) 2) has the advantage of easy and robust interconnection.

1 is a side cross-sectional view showing a rebar eccentric connector for a PC block or concrete according to the present invention;

Figure 2 is a side cross-sectional view showing an exploded state of the rebar eccentric connector for concrete or PC block according to the present invention,

Figure 3 is a perspective view showing an exploded state of the rebar eccentric connector for concrete or PC block according to the present invention,

4 and 5 reference diagram showing a method of connecting the reinforcing bars using a reinforcing bar eccentric connector for concrete or PC according to the present invention,

Figure 6 is a side cross-sectional view showing a second embodiment of the rebar eccentric connector for PC blocks or concrete according to the present invention,

Figure 7 is a side cross-sectional view showing an exploded state of a second embodiment of the reinforcement eccentric connector for PC blocks or concrete according to the present invention,

8 to 12 is a reference diagram showing a method of connecting the reinforcing bars using the second embodiment of the reinforcing bar eccentric connector for PC or concrete according to the present invention.

The present invention is a reinforcing bar connector interconnecting the first and second reinforcing bars (1,2) arranged to face each other, the fixed block 10 is fixedly coupled to the front end of the first reinforcing bar (1), and the first 1 support cylinder 20 fixedly coupled to the fixed block 10, the rotary block 30 is rotatably coupled to the inside of the support cylinder 20 and the front end of the second reinforcing bar (2) is fixed It includes, the first reinforcing bar (1) and the second reinforcing bar (2) is characterized in that coupled to form an eccentric to the fixed block 10 and the rotating block (30).

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 to 5 illustrate a rebar eccentric connector for a PC block or concrete according to the present invention, illustrating the interconnection of the first and second reinforcing bars 1 and 2 extending to face each other at the side of the PC block. It is.

According to the present invention, the rebar eccentric connector for the PC block or concrete is a fixed block 10 is fixedly coupled to the front end of the first reinforcing bar 1, and a support cylinder fixedly coupled to the first fixed block (10) 20) and the rotating block 30 is rotatably coupled to the inside of the support cylinder 20 and the front end of the second reinforcing bar 2 is fixedly coupled.

In detail, the

male threads

1a and 2a are formed at the tip portions of the first and second reinforcing bars 1 and 2.

The fixed block 10 is configured in the form of a hexagonal bar extending in the front and rear direction, the front end portion is formed with a circular coupling portion 11 is formed with a male screw (11a) on the circumferential surface.

The fixing block 10 is formed so that the coupling hole 12 through which the front end of the first reinforcing bar 1 is screwed through the front and rear surfaces.

At this time, the coupling hole 12 is formed to form an eccentricity with the coupling portion (11).

That is, the coupling hole 12 is formed in the fixed block 10 so that the central axis to form a predetermined interval offset with the central axis of the coupling portion 11, the inner thread surface of the male screw (1a) of the first reinforcing bar (1) The female screw 12a corresponding to) is formed.

The support cylinder 20 is formed in a tubular shape in which the rotary block 30 is inserted therein extending in the front-rear direction.

At this time, the support cylinder 20 is configured so that the inner diameter corresponds to the coupling portion 11 of the support cylinder 20, and the inner thread 21 corresponding to the male screw 11a of the coupling portion 11 on the inner circumferential surface of the tip portion. Is formed, is configured to be screwed to the front end portion of the support cylinder 20 to the coupling portion (11).

In addition, on the inner circumferential surface of the proximal end of the support cylinder 20, the locking jaw 22 to which the rotary block 30 is caught is formed to protrude inward in a ring shape.

The rotary block 30 is configured in the form of a circular end pipe corresponding to the inner diameter of the support cylinder 20, the outer diameter is rotatably coupled to the interior of the support cylinder 20, the rotary block 30 is A coupling hole 31 in which the distal end of the second reinforcing bar 2 is screwed is formed to pass through the front and rear surfaces.

At this time, the coupling hole 31 is formed to make the eccentric to the rotary block (30).

That is, the coupling hole 31 is formed such that a central axis forms an offset with a central axis of the rotary block 30, and an internal thread 31a corresponding to an external thread 2a of the second reinforcing bar 2 on an inner circumferential surface thereof. ) Is formed.

Therefore, as shown in FIG. 4, the fixing block 10 is screwed to the front end of the first reinforcing bar 1 and fixed to the rotary block 30 inserted into the support cylinder 20. After screwing the distal end of the second reinforcing bar 2, the support cylinder 20 is rotated and tightened while the distal ends of the first and second reinforcing bars 1 and 2 are close to each other, as shown in FIG. As such, the support cylinder 20 may be screwed to the coupling portion 11 of the fixed block 10, so that the first reinforcing bar 1 and the second reinforcing bar 2 can be firmly connected to each other. .

At this time, the

coupling holes

12 and 31 formed in the fixed block 10 and the rotary block 30 are formed to form an eccentricity to the fixed block 10 and the rotary block 30, the first and second reinforcement ( 1 and 5 are not located in a straight line, as shown in FIGS. 1 and 5, when the fixed block 10 and the rotating block 30 are rotated, the distance between the

coupling holes

12 and 31 is increased. By this fluctuation, the spacing of the

coupling holes

12 and 31 can be adjusted to fit the first and second rebars 1 and 2.

PC block or concrete reinforced eccentric connector configured as described above is a fixed block 10 is fixedly coupled to the front end of the first reinforcing bar (1), the support cylinder 20 fixedly coupled to the first fixed block (10), Rotatingly coupled to the inside of the support cylinder 20 and composed of a rotating block 30 is fixed to the front end of the second reinforcement (2), the first reinforcement (1) and the second reinforcement (2) The fixed block 10 and the rotary block 30 are coupled to form an eccentricity.

In particular, male threads (1a, 2a) are formed on the front end portions of the first and second reinforcing bars (1, 2), the fixing block 10 has a circular coupling portion 11 formed with a male screw (11a) on the circumferential surface Is formed, the fixing block 10 is formed so that the coupling hole 12, the leading end of the first reinforcing bar 1 is screwed to form an eccentric with the coupling portion 11, the support cylinder 20 is It is formed in a tubular shape extending in the front and rear direction and the rotary block 30 is inserted therein, and the locking step 22 and the engaging block 22 is caught on the inner circumferential surface of the support cylinder 20 and the distal end of the support cylinder 20. Female threads 21 are screwed to the outside of the coupling portion 11 is formed, respectively, the rotary block 30 extends in the front and rear direction and the outer diameter is configured in the form of a circular end pipe corresponding to the inner diameter of the support cylinder 20 The penetrating hole 31 through which the distal end of the second rebar 2 is screwed is eccentric and penetrates the front and rear surfaces. It is formed so as to, by rotating the fixing block 10 and the rotation block 30 may adjust the interval of the engaging hole (12,31).

Therefore, when the first and second reinforcing bars (1, 2) are not located in a straight line, the fixing block 10 and the rotating block 30 by rotating the gap between the coupling holes (12, 31) By adjusting to fit the interval between the first and second reinforcing bars (1, 2), there is an advantage that can be easily and firmly interconnected two reinforcing bars (1,2) not located in a straight line.

In the present embodiment, the PC block or reinforced reinforcing eccentric connector for concrete is applied to interconnect the first and second reinforcing bars (1, 2) extended to face each other at the side of the PC block, according to the present invention Rebar eccentric connectors for PC blocks or concrete can be applied to interconnect all types of rebars.

6 to 12 show another embodiment according to the present invention, a male screw 2a formed at the distal end of the second reinforcing bar 2 and a female screw 31a formed at the coupling hole 31 of the rotary block 30. ) And the female screw 21 of the support member 20 and the male screw 11a formed in the coupling portion 11 are configured in opposite directions to each other.

Preferably, the male screw 2a formed at the distal end of the second reinforcing bar 2 and the female screw 31a formed at the coupling hole 31 of the rotary block 30 are constituted by a right screw.

Accordingly, when the rotary block 30 is rotated to the right, that is, clockwise, the rotary block 30 is advanced to the tip of the second reinforcing bar 2.

In addition, the male screw 11a of the coupling portion 11 and the female screw 21 of the support cylinder 20 are composed of a left screw.

Therefore, when the support cylinder 20 is rotated to the left, that is, counterclockwise, the support cylinder 20 is screwed to the engaging portion 11 of the fixed block 10.

And, the outer peripheral surface of the rotary block 30 is provided with a friction member 32 in close contact with the inner peripheral surface of the support cylinder 20.

The friction member 32 is made of a rubber material of high friction.

As shown in FIG. 8, the PC block or the concrete reinforced eccentric connector configured as described above, in the state in which the second reinforcing bar 2 is screwed to the rotary block 30 provided in the support cylinder 20, When the support cylinder 20 is rotated, the rotary block 30 is rotated by the friction generated by the friction member 32, and is moved back and forth along the male screw 2a of the second reinforcing bar 2.

Therefore, when the first and second reinforcing bars (1, 2) are interconnected by using a PC block or rebar eccentric connector for concrete, even if the worker accidentally excessively tightens the rotary block 30, the first and second 2 Reinforcing bars (1, 2) can be connected.

That is, in order to interconnect the first and second reinforcing bars (1, 2) by using the PC block or reinforcing bar eccentric connector for concrete, as shown in Figure 1, the rotary block 30 is a second reinforcing bar (2) ) To be located in the middle of the male screw (2a).

At this time, as shown in FIG. 9 by mistake of the operator, when the rotary block 30 is excessively tightened to the inside of the male screw (2a) of the second reinforcing bar 2, as shown in FIG. The support cylinder 20 is caught by the rotary block 30 and cannot be coupled to the coupling part 11 of the fixed block 10.

In this case, as shown in FIGS. 10 and 11, when the operator rotates the support cylinder 20 to the right, that is, clockwise, the rotary block 30 is brought together by the frictional force of the friction member 32. It is advanced along the male screw 2a of the second reinforcing bar 2 while being rotated clockwise.

At this time, the female screw 21 formed on the support cylinder 20 is a left-hand screw, even if the support cylinder 20 is rotated in the clockwise direction, the support cylinder 20 is coupled to the coupling portion 11 of the fixed block 10. Not combined.

And, in the state that the rotary block 30 is sufficiently advanced, as shown in Figure 12, when the operator rotates the support cylinder 20 to the left, that is, counterclockwise, the support cylinder 20 is The first and second reinforcing bars 1 and 2 are interconnected by being screwed to the fixing part.

In this case, as the support cylinder 20 is rotated counterclockwise, the rotary block 30 may also be rotated counterclockwise and retracted toward the second reinforcing bar 2, but the support cylinder 20 may be retracted. In the case of rotating in the counterclockwise direction, the support cylinder 20 is screwed to the fixed block 10 while being advanced toward the first reinforcing bar 1, thereby rotating the rotation block 30 by the frictional force of the friction member 32. A force pushing toward the first reinforcing bar 1 is generated to prevent the rotary block 30 from being retracted toward the second reinforcing bar 2.

Therefore, when rotating the support cylinder 20 in the counterclockwise direction, the rotary block 30 is not rotated and is coupled to the coupling part 11 while only the support cylinder 20 is rotated.

Therefore, even if the worker tightens the rotary block 30 excessively much, by rotating the support cylinder 20 can easily adjust the position of the rotary block 30, there is an advantage that it is more convenient to use.

The present invention can be applied to the field of rebar eccentric connector and a rebar connection method for the PC block or concrete of a new structure that can be connected to the two reinforcing bar not arranged in a straight line.

Claims

Rebar connector for interconnecting the first and second reinforcing bars (1,2) arranged to face each other,

A fixed block 10 fixedly coupled to the distal end of the first reinforcing bar 1,

A support cylinder 20 fixedly coupled to the first fixed block 10;

Rotating block 30 is rotatably coupled to the inside of the support cylinder 20 and the front end of the second reinforcing bar 2 is fixedly coupled,

The first reinforcing bar (1) and the second reinforcing bar (2) is a rebar eccentric connector for a PC block or concrete, characterized in that coupled to the eccentric to the fixed block (10) and the rotating block (30).
The method of claim 1,

Male threads 1a and 2a are formed at the tips of the first and second reinforcing bars 1 and 2,

The fixed block 10 is formed with a circular coupling portion 11 is formed with a male screw (11a) on the circumferential surface,

The fixing block 10 is formed to form an eccentricity with the coupling portion 11, the coupling hole 12 is screwed to the front end of the first reinforcement (1),

The support cylinder 20 is formed in a tubular shape extending in the front and rear direction in which the rotary block 30 is inserted therein,

On the inner circumferential surface of the base end portion and the front end portion of the support cylinder 20, a locking jaw 22 on which the rotary block 30 is caught and a female screw 21 screwed to the outside of the coupling portion 11 are formed, respectively.

The rotary block 30 extends in the front-rear direction and has an outer diameter in the form of a circular end tube corresponding to the inner diameter of the support cylinder 20, and a coupling hole 31 in which the front end portion of the second reinforcing bar 2 is screwed together. Reinforced eccentric connector for a PC block or concrete, characterized in that formed to penetrate the front and rear while forming an eccentric.
The method of claim 2,

A female screw 31a formed at the distal end of the second reinforcing bar 2 and a coupling hole 31 of the rotary block 30, and a male screw 11a formed at the coupling part 11 and a support cylinder. The female screw 21 of the (20) is composed of opposite directions of the thread,

Reinforced eccentric connector for a PC block or concrete, characterized in that the outer peripheral surface of the rotary block 30 is provided with a friction member 32 in close contact with the inner peripheral surface of the support cylinder (20).
As a method of interconnecting the two reinforcing bars using the PC block or concrete reinforcing rod eccentric connector shown in claim 1,

Screwing and fixing the fixing block 10 to the front end of the first reinforcing bar 1;

Screwing and fixing the distal end portion of the second reinforcing bar 2 to the rotary block 30 inserted into the support cylinder 20;

After the front end portions of the first and second reinforcing bars (1, 2) are close to each other, the support cylinder 20 is rotated so that the support cylinder (20) is screwed to the engaging portion (11) of the fixed block (10). Reinforcing bar connection method comprising the step of.