KR101426498B1

KR101426498B1 - complex cast-in insert apparatus for concrete

Info

Publication number: KR101426498B1
Application number: KR1020140039756A
Authority: KR
Inventors: 김홍남
Original assignee: 김홍남
Priority date: 2014-04-03
Filing date: 2014-04-03
Publication date: 2014-08-05

Abstract

The present invention relates to a complex insert apparatus built in a concrete body to be coupled to an anchor which is used to install various structures on the concrete body and to provide complex functions with a single apparatus to improve workability. The complex insert apparatus includes: a support body unit which is fixed on a mold where the concrete is poured and has an extended coupling hole penetrating the inside; an extension body unit which is coupled to the extended coupling hole by screws to selectively be lifted up and down and has a hollow coupling hole penetrating the inside; a coupling unit which is coupled to the hollow coupling hole by screws to selectively move up and down; and a lifting body unit which includes a leveling support unit which is integrally protruding to the outside in the radius direction along the upper rim of the coupling unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a composite insert-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a composite insert for use in concrete, and more particularly, to a composite insert for concrete, which is provided with an anchor for installing various structures on concrete, &Lt; / RTI >

Generally, concrete pouring work is done by making molds according to the shape of the building, injecting the concrete by installing the formwork on the pillar that forms the skeleton of the building, and removing the form when the concrete is dried and cured.

At this time, an anchor for constructing various structures is coupled to the ceiling of the building formed through the concrete, and the anchor can be inserted into the insert embedded in the concrete and be coupled.

Here, as a method for burying the insert in the concrete, there is a post-install method in which the insert is installed after perforating the hole after the concrete curing, and a method of placing the insert in advance and placing the concrete (cast-in) method, and pre-installation method is mainly used.

Figs. 1A and 1B show an example of a conventional insert.

As shown in FIGS. 1A and 1B, a conventional insert 1 has an anchor groove formed on a lower surface thereof. The lower end of the insert 1 is installed on the bottom surface of the mold m, Curing was performed, and formwork (m) was removed, and various structures were installed by joining anchors (a) to the exposed anchor grooves.

In this case, the structure includes a duct, a ceiling board skeleton, an electric wiring, etc., and ceiling construction can be completed by installing various structures on the anchor (a) and connecting the ceiling board along the installed ceiling board framework.

However, when the anchor (a) is supported by the surface of the concrete (c) and a lateral pressure is applied to the anchor (a) Cracks are easily generated and the generated cracks are often propagated to the inside, so that not only the supporting force of the insert 1 is lowered but also the bearing capacity of the concrete c is weakened.

In addition, a gap is frequently formed between the form m and the lower surface of the insert 1 due to foreign matter, so that the concrete c is easily introduced into the anchor grooves, and the introduced concrete c is removed The thread of the anchor groove is often damaged, which makes it difficult to mount the anchor (a).

In order to dispose the reinforcing bar on the side of the concrete slab, a hole is formed in the side wall of the form (m) to insert the reinforcing bar and the concrete has to be laid, so that the form is damaged due to the hole, .

Meanwhile, in order to increase the bearing capacity of the concrete (c), when a reinforcing bar is placed in the concrete (c), a separate reinforcing bar spacer is required to form a reinforcing bar spaced apart from the concrete.

In addition, since unnecessary material cost and installation period are consumed in order to install and provide the insert 1 for the anchor (a) installation and the reinforcing spacer for reinforcing steel reinforcement, the construction cost and the duration are increased, There is a problem that the unnecessary devices are inserted into the inside of the concrete to decrease the bearing capacity of the concrete (c).

Further, since the thickness of the concrete slab is not constant depending on the use or size of the building, if the thickness of the slab is changed and the spacing of the reinforcing bars is changed, a separate spacer corresponding to the spacing of the reinforcing bars must be prepared and installed.

On the other hand, in order to check the horizontal or thickness of the slab when casting the concrete (c), a leveler such as a bar marked with a height was used. In the case of using a product having a long dimension, it is necessary to remove the protruded portion, which is inconvenient for the operation.

As described above, when the concrete (c) is laid, the design and construction are complicated to separately provide and install the insert 1, the reinforcing spacer, the leveler, and the like according to the design of the building, and the construction cost and period are increased, It was hard.

Korea Patent No. 10-0708539

In order to solve the above problems, it is an object of the present invention to provide a composite insert device for a concrete installation, in which an anchor for installing various structures on concrete is combined and a composite function is provided by one device, The problem is solved.

According to an aspect of the present invention, there is provided a method of manufacturing a concrete structure, comprising: a support body portion fixed to a mold to which concrete is cast, wherein an extension fastening hole penetrating the concrete body is formed; An elongated body portion which is threadedly coupled to the elongated fastening hole so as to be selectively moved up and down, and in which a hollow fastening hole penetrating the elongated fastening hole is formed; And a lifting body part including a leveling support part integrally projected radially outward along an upper rim of the fastening part, and a lifting body part including a lifting body part integrally formed with the lifting body part, The present invention provides a composite insert device for in-concrete use.

Here, a first stopper portion is provided at an upper end of a first screw portion formed on an outer circumference of the extended body so as to be coupled to a first screw thread of the inner circumference of the extended fastening hole, And a second stopper portion that engages with an upper edge of the extended body portion and restrains the threaded engagement with the upper end portion of the second threaded portion formed on the outer periphery of the fastening portion so as to be coupled to the second threaded portion of the inner circumference of the fastening hole.

In this case, it is preferable that the first stopper portion of the elongated body portion is provided with a reinforcing seat portion protruding outward in the radial direction to seat the reinforcing bars.

Preferably, the support body is provided with a reinforcing synthetic resin, and a flange portion protruding radially outwardly from the outer periphery of the lower end portion to be coupled to one surface of the mold by a coupling means.

The leveling support portion includes a plurality of wire insertion holes through which the reinforcing wire is inserted and fastened to the outer circumferential portion of the leveling support portion. The wire insertion hole is formed in the upper portion of the lifting body portion so as to seal the boundary with the concrete. And the upper surface of the leveling support portion is provided to be flat to measure the height of the poured concrete.

Through the above-mentioned solution, the composite insert device for concrete inlay of the present invention provides the following effects.

First, the support body portion is fixed to the formwork and includes a lifting body portion that is screwed and vertically moved. The leveling support portion of the lifting body portion can be used as a reference surface when the reinforcing bars are fixed and the upper surface is used as a reference surface. , A leveler, and a reinforcing spacer.

Secondly, the elevating body portion can use the upper surface of the leveling support portion as a concrete pouring reference surface, and the reinforcing bars are fixed and supported through the wire insertion holes, and the elevation body is elevated and elevated inside the support body portion. Therefore, when the anchor is installed at each point, It is compatible with reinforcing spacer or leveler as a whole, so that one type of device can be used to carry out the entire construction, so that the convenience of the product can be improved as the construction design and preparation are simplified.

Third, since the lifting body portion is screwed into the extended body portion, the extended body portion can be screwed into the support body portion and can be raised and lowered in multiple stages. Therefore, the range of adjustment between the formwork and the lifting body portion is expanded, It can be used as a leveler and a reinforcing spacer because it is widely applied to a wide range of concrete thicknesses ranging from construction to civil works, so that the compatibility of products can be remarkably improved.

Figures 1a and 1b illustrate a conventional insert.
2 is a cross-sectional view of a composite insert device for concrete in accordance with an embodiment of the present invention.
3 is a plan view of a support body portion of a composite insert device for reinforcing concrete according to an embodiment of the present invention.
FIG. 4 is a plan view of a lifting body of a composite insert device for concrete wear according to an embodiment of the present invention. FIG.
5A, 5B and 5C are schematic views illustrating the use of a composite insert device for concrete in accordance with an embodiment of the present invention.
FIG. 6 is an exemplary view showing a state where a reinforcing bar is coupled to a composite insert device for reinforcing concrete according to an embodiment of the present invention; FIG.
FIG. 7 is an exemplary view showing concrete construction using a composite insert device for concrete in accordance with an embodiment of the present invention; FIG.
8 is a cross-sectional view illustrating a composite insert device for concrete in accordance with another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a concrete composite insert device for concrete according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a plan view of a supporting body portion of a composite insert device for reinforcing concrete according to an embodiment of the present invention. FIG. 4 is a cross-sectional view of the composite insert device for a concrete insert device according to an embodiment of the present invention. 1 is a plan view showing a lifting body portion of a composite insert device for reinforcing concrete according to an embodiment of the present invention.

Here, the concrete composite insert device 100 for concrete use is disposed before being poured so as to be embedded in concrete (see c in FIG. 5C) when forming a ceiling of a building, so that an anchor for installing various structures ) Is inserted and joined.

In addition to anchor installation, it can be used in place of reinforcing spacer for reinforcing steel reinforcement, leveler for measuring the height of concrete pavement, etc., and can be applied to various types of concrete construction, thereby simplifying the construction and preparation of concrete. Can be improved.

2 to 4, the composite insert device 100 for a concrete according to the present invention includes a support body portion 20, a lift body portion 10, and an extension body portion 40.

Here, the support body portion 20 is fixed to the workpiece m on which the concrete is placed, and an extension fastening hole 21 is formed to penetrate the inside thereof. At this time, it is preferable that the form m is installed in a support which forms the skeleton of the building to construct the ceiling of the building.

The mold m may be formed of various materials and may be provided as a plywood coated with a mold release agent along the concrete injection surface so as to be reusable through separating and demolding after concrete shaping at the time of general construction.

Of course, in the case of civil engineering construction of large bridges, tunnels, roads, etc., compared with general construction, the thickness of concrete may be increased and the load applied to each formwork may be increased.

Accordingly, in order to support the increased concrete load and to relieve the burden of the pile caused by the load of the concrete and formwork (m), a lightweight, rigid fiber reinforced plastic or aluminum mold can be used instead of thick and heavy plywood .

The support body 20 is fixed to the bottom surface of the mold m and after the concrete is cured, the mold m is removed, and the support body 20 is fixed to the lower surface of the hardened concrete. The lower surface of the base plate can be exposed. At this time, an extended fastening hole 21 may be exposed to the lower surface of the cured concrete along the vertical direction inside the support body part 20. [

The extension body 40 is screwed to the extension engagement hole 21 so as to be selectively moved up and down, and a hollow fastening hole 41 penetrating the extension body 40 is formed.

Here, the extended body portion 40 is rotated in one direction in a state where it is disposed in the upper opening of the extended fastening hole 21, can be inserted into the extended fastening hole 21, And can be pulled out of the extension fastening hole 21.

At this time, a first screw portion 42 is formed on the outer periphery of the elongated body portion 40 so as to be screwed to the first threaded portion of the inner periphery of the elongated fastening hole 21, A thread is formed and the lifting body 10 can be screwed.

Accordingly, the extended body portion 40 can extend and connect and support between the support body portion 20 and the lifting body portion 10 in response to various construction environments such as construction work using thick concrete. have.

Meanwhile, the lifting body 10 includes a fastening portion 10b and a leveling support portion 10a. Here, the fastening portion 10b is screwed to the hollow fastening hole 41 so as to be selectively moved up and down.

At this time, a second threaded portion 14 may be formed on the outer circumference of the fastening portion 10b to be screwed to the second threaded portion of the inner circumference of the hollow fastening hole 41. The fastening portion 10b is disposed in the upper opening of the hollow fastening hole 41 and is rotated in one direction and inserted into the hollow fastening hole 41. When the fastening portion 10b is rotated in the other direction, And can be drawn out to the outside of the hollow fastening hole 41.

In addition, an anchor coupling groove 16 is formed in the coupling portion 10b, to which an anchor for installation of various structures installed on the ceiling is coupled. At this time, the anchor engagement groove 16 is formed on the lower surface of the coupling portion 10b.

Accordingly, when the form m is separated after the curing of the concrete, the lower opening of the extended fastening hole 21 is opened, and the anchor is fastened to the inside of the extended fastening hole 21 and the extended fastening hole 21 The anchor coupling groove 16 may be coupled to the extension body through the hollow coupling hole.

Here, it is preferable to understand that the anchor is provided with a diameter of a standard dimension used in a general ceiling construction, and the inner diameter of the anchor coupling groove 16 is dimensioned so that the anchors of the standard dimensions mentioned above can be combined. .

The leveling support portion 10a is integrally projected radially outward along the upper edge of the fastening portion 10b. Therefore, the leveling support portion 10a can be fixed to bear the high load as the lower surface of the protruded portion inserted into the concrete is supported by the concrete.

Accordingly, when the lifting body 10 is embedded in the concrete, it can be fixed firmly to the inside of the hardened concrete without falling down due to the load of the structure installed on the anchor.

Also, the support body 20 may be fixed to the side wall of the mold m. At this time, if the form m is separated after the concrete curing, the extension fastening holes 21 are exposed to the sides of the concrete, and the joint reinforcing bars are inserted through the extension fastening holes 21 and the hollow fastening holes 41 therein And can be coupled to the anchor coupling groove 16.

Herein, it is preferable to understand that the joint reinforcing bar is a reinforcing bar that is protruded from a side wall of a ceiling or a wall formed of concrete and connected to other reinforcing bars or other structures. Accordingly, the connecting reinforcing bar can be easily assembled without puncturing the form m.

2 to 3, the support body 20 may be formed of reinforced synthetic resin. At this time, the support body 20 may be made of hard and elastic polyvinyl chloride (PVC).

The flange 22 may be provided on the outer periphery of the lower end of the support body 20 so as to be radially outwardly engaged with a surface of the form m by engaging means.

Here, the term 'one side of the form m' means the upper side when the support body 20 is arranged in the up-and-down direction and is used for anchor coupling, and the support body 20 is arranged in the left- It is preferable to understand that the term " side "

At this time, the flange portion 22 may be tightly coupled to the mold m by forming an outwardly bent surface at the lower end of the outer circumference of the support body portion 20. [

When the formwork m is provided as a plywood plate, the fixing nail n is used as a coupling means, and the flange portion 22 is used as a coupling means. May be coupled to the mold (m).

At this time, a nail hole 22a may be formed in the inside of the flange portion 22 and the fixing nail may be inserted into and fixed to the die m through the nail hole 22a The flange portion 22 can be fixed to the mold m.

Of course, the flange portion 22 may be formed by inserting a fixing nail n therein, and an end portion of the fixing nail n is projected to a lower portion of the flange portion 22, As shown in FIG.

At this time, the support body part 20 is disposed at an anchor installation point of the mold m, and an impact is applied to the upper part of the support body part 20 so that the fixing nail n is inserted into the form m, The body portion 20 can be fixed to the mold m.

When the mold m is formed of a material such as fiber-reinforced plastic (FRP), the engaging means may be formed of an adhesive or a double-sided tape. The lower surface of the flange portion 22 An adhesive or a double-sided tape may be applied and bonded to the mold m.

In this case, the outer circumference of the support body 20 may be provided in the form of a polygonal column or a circular column having a square to octagonal columnar shape, but the volume occupied in the concrete may be minimized in a state in which the extended fastening hole 21 is formed therein And is preferably provided in a cylindrical shape.

The support body 20 can support the extension body 40 and the lifting body 10 when the concrete is pushed while being fixed to the workpiece m. So that the lifting body 10 can be supported apart from the surface.

Accordingly, even if a gap is formed between the form m and the lower surface of the supporting body portion 20 due to foreign matter, concrete does not flow into the anchor coupling groove 16 and the anchor coupling portion 16 can be maintained without being contaminated.

That is, even if the removal operation such as breaking or scraping of the hardened concrete attached to the first thread of the inner periphery of the extension fastening hole 21 is not performed hardly, if only the hole through which the anchor engagement groove 16 can be exposed is formed, Can be easily inserted into and coupled to the anchor coupling groove (16).

Further, it is necessary to separate the form (m) after the concrete curing and to remove the concrete that has flowed into the support body portion 20.

Since the support body 20 is made of an elastic reinforced synthetic resin and is separately provided from the extension body 40 and the lifting body 10, An external force is absorbed by the support body portion 20 and can be blocked at the threaded portion of the extension body portion 40 and the lifting body portion 10. [

Accordingly, the screw structure of the anchor coupling groove 16 can be prevented from being damaged, for example, by bending the anchor coupling groove 16, so that the anchor coupling operation can be facilitated.

The lifting body 10 is coupled to the workpiece m by the extended body 40 and the supporting body 20 so that after the concrete curing, It can be inserted and bound to concrete and can be firmly fixed.

At this time, the lifting body 10 is preferably made of a material having high rigidity, and may be made of reinforced synthetic resin or metal. The present embodiment has been described by taking as an example a steel material having high rigidity.

In detail, the leveling support portion 10a protruded outward from the outer periphery of the coupling portion 10b is inserted into the concrete, so that the supporting force against the load can be improved. In addition, The contact area with the concrete can be increased through the second threaded portion 14 formed along the outer periphery of the reinforcing portion 10b and the coupling force with the concrete can be further improved by the engaging engagement through the uneven shape.

In addition, since the elevating body 10 is supported inside the concrete which is condensed through the load of the peripheral portion and hardly coupled with the peripheral portion, rather than the surface portion of the concrete which is vulnerable to the crack, the supporting force against the load is improved, And induced propagation of cracks can be prevented.

A clearance space partitioned by the concrete may be formed between the anchor coupled to the coupling part 10b and the inner circumference of the hollow coupling hole 41 and the extension coupling hole 21. [

That is, the hollow fastening hole 41 is disposed in the extended fastening hole 21, the anchor engaging groove 16 is disposed in the hollow fastening hole 41, and the diameter of each of the multi- A clearance may be formed on the outer periphery of the anchor according to the arrangement, and the anchor may flow left and right in the clearance space, thereby alleviating the lateral pressure.

Since the clearance space is formed inside the hollow fastening hole 41, the protruding length of the anchor for securing the flow of the anchor is minimized, so that space efficiency can be improved.

Further, as the clearance space is partitioned with the concrete, a variety of finishing treatments such as waterproofing treatment, sealing treatment and sound absorption treatment are performed inside the hollow fastening holes 41 and the fastening holes 21 without chemical damage of the concrete after the anchor bonding The quality of construction can be improved as much as possible.

For example, in a wet environment, the joint structure of the concrete (c) is weakened in the finishing treatment for sealing / waterproofing the joint portion between the anchor and the anchor coupling groove 16 or preventing noise / Which may be blocked by the support body 20 and the elongated body portion 40 so as not to contact the concrete.

Accordingly, it is possible to improve the durability of the product, to prevent the insert from being damaged easily by being made of synthetic resin in order to prevent corrosion in a wet environment, or to use an inexpensive stainless steel series The elevating body 10 can be manufactured to provide a high supporting force and can be applied in various construction environments to improve the economical efficiency and reliability of the construction.

The elevating body 10 and the supporting body 20 for fixing the elevating body 10 to the formwork are required to have strong rigidity in order to provide a supporting force to the anchor, And the extension body portion 40 extending and connecting the gap between the lifting body portion 10 and the supporting body portion 20 provides a strong structural force while reducing the production cost, The production economical efficiency can be improved.

The upper end of the second screw portion 14 formed on the outer periphery of the coupling portion 10b is engaged with the upper edge of the extended body portion 40 so as to be coupled to the second screw thread of the hollow of the hollow fastening hole 41, It is preferable that a second stopper portion 15 for restricting engagement is provided.

The second threaded portion 14 is screwed to the second threaded portion of the inner circumference of the hollow fastening hole 41 so that the lifting body portion 10 is inserted into the hollow fastening hole 41 in the unidirectional rotation And can be drawn out to the outside of the hollow fastening hole 41 when rotating in the other direction.

Accordingly, the elevating body 10 can be firmly supported by the elongated body 40 so that the elevated height can be accurately maintained without being poured when the concrete is poured, and the second stopper 15 can be extended It can be raised and lowered to various heights from the height at which the second screw portion 14 is hooked to the upper edge of the body portion 40 to the height before the second screw portion 14 is detached from the hollow fastening hole 41.

At this time, the second stopper portion 15 restricts the depth of insertion into the hollow fastening hole 21 so as to restrain the screwing, so that the height of the lifting body 10 becomes excessively low, And the load bearing capacity of the lifting body 10 can be prevented from being lowered.

The reinforcing bars to be disposed in the concrete may be welded to the outer surface of the second stopper portion 15. [ Accordingly, since the lifting body 10 can be more firmly coupled to the concrete and the supporting loads of the respective anchors can be increased, an anchor placement amount for dispersing and supporting the load of the structure can be reduced, It is possible.

The extended body portion 40 is coupled to the formwork m by the support body portion 20 so as to extend the gap between the lifting body portion 10 and the support body portion 20, And can support.

A first threaded portion 42 is formed on an outer circumference of the extended body portion 40 to be coupled to a first threaded portion of the inner circumferential surface of the extended fastening hole 21, 41 may have the second screw thread formed therein so that the lifting body 10 can be screwed.

That is, the extended body portion 40 can be screwed to the support body portion 20, and the elevating body portion 10 screwed into the extended body portion 40 can be lifted and lowered, The gap between the form m and the lifting body 10 can be adjusted more widely.

Accordingly, since the thickness of concrete can be widely applied to a variety of concrete thicknesses ranging from a thin construction to a thick construction, it is possible to increase the range of use of the leveler and the reinforcing spacer to improve the compatibility of the product.

The upper end of the first threaded portion 42 may be provided with a first stopper portion 44 that is engaged with the upper edge of the supporting body portion 20 and restrains the threaded engagement. Thus, the depth of insertion of the extension body portion 40 into the support body portion 20 can be limited.

The extended body portion 40 is preferably made of a metal material. Therefore, a reinforcing bar to be disposed in the concrete can be welded to the outer surface of the first stopper portion 44 to be supported.

In detail, in the case of civil engineering construction, the thickness of the concrete becomes thick, and the reinforcing bars disposed inside the concrete can also be arranged in upper and lower tiers corresponding to the thickness of the concrete. At this time, the first stopper portion 44 is raised and lowered in correspondence with the arrangement height of the reinforcing bars, and the reinforcing bars can be welded to the outer surface, so that the reinforcing bars can be accurately supported in accordance with the intervals of the reinforcing bars corresponding to the thicknesses of concrete and concrete having various thicknesses have.

2 to 4, a plurality of wire insertion holes 11 are formed in the leveling supporting portion 10a so as to insert and fasten reinforcing wires (see w in FIG. 6) into the outer periphery of the leveling supporting portion 10a, The upper surface 18 of the support portion 10a is preferably flat to measure the height of the concrete.

The leveling support portion 10a may be provided in the shape of a polygonal or circular plate protruding from the upper end of the outer periphery of the coupling portion 10b so as to increase the support area for concrete, It is preferable that it is provided in the shape of a hexagonal plate so as to firmly support the load without being bent when the reinforcing bars are coupled.

At this time, a plurality of wire insertion holes 11 spaced apart from each other by a predetermined distance inward from the rim of the leveling support portion 10a may be formed, and the leveling support portion 10a may be formed in a hexagonal plate shape The wire insertion holes 11 may be formed on the inner side of the corner portions and may be formed one for each of the two corner portions.

In detail, a reinforcing bar binding wire (see w in FIG. 6) can be inserted into each wire insertion hole 11, and the reinforcing bar binding wire can enclose a reinforcing bar disposed below the leveling supporting portion 10a. Here, it is preferable that the reinforcing bar binding wire is a wire used for fixing a reinforcing bar in a general construction site.

The support body 20 may be installed at a position where the anchor is to be coupled to the formwork m and the height of the lifting body 10 may be adjusted to a position of the reinforcing steel fitting position corresponding to the concrete placement height of the construction have.

At this time, when the reinforcing bars are fixed to the leveling support portion 10a, the reinforcing bars are aligned and arranged at a height corresponding to the thickness of the concrete, and can be accurately buried without flowing when the concrete is poured. Reinforcement can be placed at the reinforcement location.

Therefore, it is possible to easily place the reinforcing bars at an accurate height without preparing a separate reinforcing spacer or a reinforcing spacer of a size suitable for the height of the concrete casting to be installed at the time of construction, thereby improving the accuracy and convenience of construction.

Further, since the extension body 40 and the lifting body 10 can be elevated and lowered in multiple stages, the applicable range of the thickness of the concrete and the spacing of the reinforcing bars can be extended, Can be improved.

In addition, when the reinforcing bars are arranged in multiple stages, the upper side reinforcing bars can be fixed to the leveling supporting portions 10a, and the reinforcing bars can be fixed to the first stopper portions 44 of the extending body 40, It is possible to use it as a reinforcing spacer even in the civil engineering construction in which reinforcing bars are buried in multi-tiers.

The wire insertion hole 11 may have a load reinforcing portion 13 extending slantly from the side surface of the coupling portion 10b to support the lower surface of the leveling support portion 10a.

At this time, the load reinforcing portion 13 prevents the leveling supporting portion 10a from being bent downward due to the load of the reinforcing bar or bending upward due to the load of the anchor provided with the structure after the construction, have.

The upper surface 18 of the leveling support portion 10a may be formed flat and a fixing groove 12 may be formed at one side of the upper surface to fix the electronic leveling device (see FIG. 5A). At this time, the leveler may be fixed to the fixing groove 12 or measure the height of the leveling support portion 10a in a state of being mounted on the upper surface 18 of the leveling support portion 10a.

The height of the leveling support portion 10a can be adjusted by rotating the lifting body 10 so that the height measured through the electronic leveler corresponds to the designed height of the concrete pavement.

At this time, if the height of the leveling support portion 10a is adjusted to the designed concrete pouring height, the electronic leveler is separated and concrete is injected. Here, the upper surface of the leveling support portion 10a may be used as a reference surface to accurately inject the concrete into the designed pouring height.

If the height of the lifting body is adjusted to provide a separate reinforcing spacer for reinforcing steel reinforcement or a separate leveler for adjusting the height of the concrete pouring by simply providing the supporting body 20 along the position where the anchor is to be coupled Since the reinforcing bars can be arranged at the correct height and the concrete can be laid at an accurate height, the ease of installation can be significantly improved.

In addition, since the extension body 40 and the lifting body 10 can be screwed into multiple stages, it can be applied to a wide range of construction sites from a low construction height of concrete to a heavy construction height of concrete, Compatibility can be significantly improved.

The lifting body portion 10 and the extending body portion 40 can be formed by simply providing the supporting body portion 20 in accordance with the arrangement of the anchors without preparing and installing a reinforcing spacer, So that the design / preparation for concrete construction can be easily performed.

In addition, it is possible to install the device unified in one unit without installing a separate device in various parts such as the position where the reinforcing bar is supported, the position where the concrete height is measured, the position where the anchor is to be installed, Thereby minimizing the amount of the inner insert to be made, thereby improving the safety of the construction.

Anchor guide portions 17 and 43 are formed in the lower portion of the anchor coupling groove 16 and the hollow coupling hole 41 to extend downward to guide the anchor.

The first anchor guide portion 17 formed at the lower portion of the anchor coupling groove 16 connects the inner periphery of the anchor coupling groove 16 and the outer periphery of the coupling portion 10b upwardly sloping inwardly in the radial direction, The second anchor guide portion 43 formed at the lower portion of the hollow fastening hole 41 may be connected to the inner circumference of the hollow fastening hole 41 and the outer circumference of the elongated body portion 40 in an upward sloping manner toward the radially inward side.

At this time, when the anchor is pushed into the lower portion of the extension fastening hole 21, the end of the anchor is guided into the hollow fastening hole 41 by the second anchor guide portion 43, 17 to the inside of the anchor engagement groove 16 and can be moved.

As a result, not only is the anchor engagement groove 16 not visible to the naked eye, but also the degree of drawing between the extended body portion 40 and the support body portion 20 or the degree of drawing between the elevating body portion 10 and the extension The anchors can be easily inserted and joined regardless of the degree of drawing between the body portions 40. [

The upper portion of the lifting body 10 may be provided with a water lid 30 for sealing the boundary with the concrete c as it absorbs moisture and expands. The level cap 30 covers the top and side surfaces of the leveling support 10a and can be engaged with the bottom surface of the leveling support 10a.

At this time, the level cap 30 may be selectively provided when the leveling support portion 10a is exposed to the outside of the concrete c and used as a leveler, and a position where the concrete c is installed Or in the case of a leakage occurring area such as a kitchen or a bathroom where a water supply / drainage pipe and the like are located.

Here, the water-shielding lid 30 is preferably made of a waterproof material, and may be made of rubber, silicone, or bentonite. Particularly, when the water leakage occurs, the water lid 30 made of the bentonite material expands and can seal the boundary with the concrete more accurately.

For example, when the leveling support portion 10a measures the height of the concrete pouring, the leveling support portion 10a may be exposed to the upper side of the concrete. At this time, the boundary between the concrete and the leveling supporting portion 10a may be vulnerable to leakage.

In addition, since the leveling support portion 10a can be easily broken due to water being introduced between the concrete and the leveling support portion 10a, the supporting force for the anchor and the structure can be reduced.

Moreover, the moisture introduced into the concrete reduces the bonding force between the hardened concrete particles to generate cracks, and the generated cracks can easily propagate to the interior, thereby reducing the durability of the building. At this time, the a-order lid 30 seals the boundary between the leveling support 10a and the concrete to prevent moisture infiltration, thereby improving the safety and reliability of the construction.

Hereinafter, the concrete construction using the above-described composite insert device 100 for concrete construction will be described in more detail.

5A, 5B, and 5C are schematic views illustrating the use of the composite insert device for internal-concrete use according to an embodiment of the present invention. FIG. 6 is a cross- FIG. 7 is a view illustrating an example of concrete construction using a composite insert device for concrete in accordance with an embodiment of the present invention. Referring to FIG.

5a to 7, when the formwork m for pouring the concrete c is installed, the support body 20 is placed on the bottom surface of the workpiece m corresponding to each point where the anchor is to be disposed. And then the concrete (c) is poured.

5A, the electronic leveler j is disposed on the upper surface 18 of the leveling support while the support body 20 is fixed to the mold m, and the electronic leveler j The height of the leveling supporting portion can be adjusted by rotating the elevating body 10 so that the height measured by the height adjusting portion corresponds to the height of the designed concrete pouring height.

At this time, since the extension body 40 is lifted and lowered within the support body 20 and the lifting body 10 can be lifted and lowered within the extension body 40, the height of the leveling support The adjustment range can be significantly extended.

5B to 5C, when the height of the leveling support portion is adjusted, the leveling support portion separates the electronic leveler j, and then the upper portion of the leveling support portion is joined to the upper portion of the leveling support portion .

At this time, the car-receiving lid 30 seals between the concrete c and the leveling supporting part, so that moisture can flow into the concrete in a bathroom, a kitchen, a water supply and drainage facility where leakage of water may occur on the concrete c So that it is possible to prevent the rigidity of the concrete from being lowered and the occurrence of cracks.

When the injected concrete c is cured, the mold m is separated to open the extension fastening hole 21, and the anchor a is separated from the upper surface of the leveling supporting part, Can be coupled to the anchor coupling groove (16) through the extended coupling hole (21) and the hollow coupling hole (41).

As a result, the convenience of installation can be improved by simplifying construction design and preparation by performing a combined function of an anchor insert and a leveler with one apparatus, and compatibility with a product can be extended because it can be applied corresponding to various concrete thicknesses .

In addition, the height of the elongated body 40 can be adjusted while maintaining the height of the leveling support in a state where the elongated body 40 and the lifted body 10 are not fully extended The reinforcing bars may be welded to the elongated body portion 40 and used as a reinforcing spacer.

6, the elevating body 10 can be raised and lowered to a height of the reinforcing bars corresponding to the designed height of the concrete (c) The reinforcing bars s can be joined by inserting the reinforcing bars w.

At this time, the concrete (c) is injected into the mold and cured, so that the reinforcing bars (s) can be precisely aligned and placed in the concrete (c) at positions corresponding to the thickness of the concrete (c).

Also, in the case of civil engineering construction, the reinforcing bars (s) may be arranged in multiple stages inside the concrete (c) to support the load of the large structure. At this time, the reinforcing bars are disposed by using the wire insertion holes 11 of the leveling supporting portion 10a, the height of the extending body 40 is adjusted corresponding to the spacing of the reinforcing bars to be arranged in multi- ). &Lt; / RTI >

Thus, a single device can perform a complex function of the anchor insert and the reinforcing spacer, and can be adapted to various construction environments from construction to civil construction.

Referring to FIG. 7, when the formwork m for concrete construction is installed, the concrete composite insert device 100 for concrete installation can be installed at each point where the anchor a is disposed.

At this time, a part (k) of the devices arranged at each point performs the function of a leveler, and the upper surface of the leveling support portion can be used as a reference plane for raising and lowering the lifting body portion 10 up to the designed concrete pouring height.

The rest of the devices disposed at each point performs the function of a reinforcing spacer, and the elevating body 10 is lifted up to the height of the reinforcing bars corresponding to the height of the concrete pile, .

Since the support body 20 can be installed at each point where the anchor is to be disposed and the elevating body 10 can be elevated and lowered in accordance with the function to be performed and used as a reinforcing spacer or leveler for each point, It is possible to simplify the construction design and preparation, and the convenience of the product can be improved.

Furthermore, it is possible to store various devices such as a reinforcing spacer, a leveler, and an insert separately, to prepare each device as necessary at the time of construction, and to purchase a defective device separately, The convenience of construction can be remarkably improved.

FIG. 8 is a cross-sectional view of a composite insert device for concrete in accordance with another embodiment of the present invention. In the present embodiment, the basic configuration except for the first stopper portion of the elongated body portion is the same as that of the above-mentioned one embodiment, so that a detailed description of the same configuration will be omitted.

8, the first stopper portion 244 of the elongated body portion 240 may be provided with a reinforcing seat portion 245 protruding radially outward to seat the reinforcing bar s.

Preferably, the reinforcing seat portion 245 is formed so as to protrude along the circumference of the extended body portion 240 so that the reinforcing bar s can be seated regardless of the arrangement angle of the extended body portion 240 Do.

More specifically, when the reinforcing bars s are arranged in a plurality of stages in the concrete c, the height of the extended body 240 is adjusted to the height of the reinforcing bars to be disposed at the lower portion, and the height of the reinforcing bars 245, The reinforcing bars can be seated and temporarily supported.

When the reinforcing bars s are aligned at an accurate height, they can be welded to the reinforcing seat portion 245 and fixed firmly. Thereafter, the height of the lifting body 210 is adjusted to the height of the reinforcing bars disposed at the upper portion, and the reinforcing bars are disposed at the lower portion of the leveling supporting portion 210a to connect the reinforcing bars w to the wire insertion holes 211. [ So that the upper reinforcing bar s can be fixed.

As described above, since the reinforcing bars 245 can temporarily support the reinforcing bars, the welding operation can be easily performed without the need of a separate wiring work or other workers.

Accordingly, when a plurality of reinforcing bars are disposed inside the concrete, even a small number of operators can temporarily hold the reinforcing bars using the reinforcing bars 245, align the reinforcing bars, and fix the reinforcing bars by welding. Can be improved.

As described above, the present invention is not limited to the above-described embodiments, and variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. And such modifications are within the scope of the present invention.

1: conventional insert a: anchor
c: Concrete m: Formwork
w: reinforcing steel wire s: reinforcing steel
j: electronic level machine 100, 200: insert device
10,210: lifting body part 10a, 210a: leveling supporting part
10b: fastening portion 11, 211: wire insertion hole
12: fixing groove 13: load reinforcing portion
14: second screw portion 15: second stopper portion
16: anchor coupling groove 17, 43: anchor guide portion
20: support body part 21: extended fastening hole
22: flange portion 22a: nail hole
30: Car receiving lid 40: Extension body
41: hollow fastening hole 42: first screw portion
44, 244: first stopper portion 245: reinforcing seat portion

Claims

A support body part fixed to a mold in which concrete is cast, in which an extension fastening hole penetrating the inside is formed;
An elongated body portion which is threadedly coupled to the elongated fastening hole so as to be selectively moved up and down, and in which a hollow fastening hole penetrating the elongated fastening hole is formed; And
And a lifting body portion including a coupling portion having an anchor coupling groove formed therein and being screwed to selectively move up and down in the hollow coupling hole and a leveling supporting portion integrally projecting radially outward along an upper edge of the coupling portion, Composite inserts for concrete.

The method according to claim 1,
A first stopper portion is provided on an upper end of a first screw portion formed on the outer circumference of the extended body so as to be engaged with a first screw thread of the inner circumference of the extended fastening hole,
And a second stopper portion that engages with an upper edge of the extended body portion and restrains a screw connection, at an upper end portion of a second screw portion formed on an outer periphery of the fastening portion so as to be coupled to a second screw thread inside the hollow fastening hole. Composite insert device.

3. The method of claim 2,
Wherein the first stopper portion of the elongated body portion is provided with a reinforcing seat portion protruding radially outward to seat the reinforcing bars.

The method according to claim 1,
Wherein the support body comprises a reinforcing synthetic resin and has a flange portion protruding radially outwardly to be coupled to the outer surface of the lower end of the mold by a coupling means.

The method according to claim 1,
An upper part of the lifting body part is provided with a water covering lid which expands when absorbing moisture to seal the boundary with the concrete,
Wherein the leveling support portion is formed with a plurality of wire insertion holes through which reinforcing wire is inserted and fastened to the outer periphery of the leveling support portion and the upper surface of the leveling support portion is flatly provided to measure the height of the concrete pouring. Device.