KR101159453B1

KR101159453B1 - Surportor for laying holder in concrete structures

Info

Publication number: KR101159453B1
Application number: KR1020100075736A
Authority: KR
Inventors: 최재진
Original assignee: 최재진
Priority date: 2010-08-05
Filing date: 2010-08-05
Publication date: 2012-06-25
Also published as: KR20120013636A

Abstract

The present invention relates to a holder support in which a holder in which a screw shaft for supporting a load of various facilities is connected in a concrete structure is firmly fixed to a formwork. will be.
The present invention strongly blows the wedge 110 at the inner diameter of the holder support 100 to increase the outer diameter of the annular connecting projection 103 inserted into the hole 11 of the aluminum formwork 10 to increase the holder support 100. It is firmly fixed to the aluminum formwork, it is characterized by connecting the shaft hole 32 of the holder 30 to the connecting shaft 101 of the holder support 100.

Description

Holder support for embedding holder into concrete structure {SURPORTOR FOR LAYING HOLDER IN CONCRETE STRUCTURES}

The present invention is to install a variety of facilities and devices installed in the building, in particular pipes and the like suspended on the ceiling and embedded in the concrete structure holders are connected to the screw shaft for supporting the load of these various facilities in the concrete structure and firmly fixed to the formwork It relates to a holder support.

In general, concrete structures form a form of formwork, and after pouring concrete mortar into the form to form a concrete structure by curing the concrete mortar for a certain time.

The cured concrete structure removes the formwork and attaches a specific facility or device to the ceiling or wall of the cured structure. For example, the ceiling has a lighting facility, a broadcasting speaker facility, a fire extinguishing sprinkler facility, a ventilation duct facility, and various Water and sewage piping, heating plumbing facilities, communication cables, power line cables, various interior facilities for ceiling interiors will be installed.

The various facilities as described above are partly embedded in the concrete structure, but some are constructed by hanging the ceiling.

As described above, in order to fix or attach the above facilities to the ceiling or wall of the concrete structure, drill a hole in the concrete structure with an electric drill, insert the anchor bolt into the hole, and fix the anchor bolt firmly to the end of the anchor bolt. After fastening a nut or welding a screw shaft having a predetermined length to an anchor bolt, a tray (shelf) or a hardware or a bracket may be connected to the screw shaft to suspend or attach various facilities or devices to the ceiling.

However, in order to suspend various facilities or devices on the ceiling, first, a hole must be drilled in the concrete structure. However, the ceiling is located at a high position from the ground. Dust harmful to the human body is introduced into the eyes and the respiratory organs and has a lot of problems, such as extremely bad for human health and generate extreme noise.

In order to solve the problems as described above, in recent years, when building a structure, that is, a concrete structure, a holder for connecting various facilities in the concrete structure is embedded to connect the screw shaft directly to the holder without drilling a hole in the concrete structure. A holder embedding method has been tried.

The holder embedding method is to pour concrete mortar with the holder attached to the formwork when placing the concrete mortar and cure it so that various facilities can be suspended immediately without drilling holes in the cured concrete structure. It is very desirable because there is an effect that can be excellent and the convenience of construction.

However, the holder buried method currently in use is quite a lot of problems, so improvement is urgently required, looking at the problems as follows.

First, the holder embedding method currently used is a hole 11, see Fig. 3 on the surface of the aluminum formwork (10, 1 and 3) as shown in Figs. Insert the screw shaft 21 of the holder support 20 to penetrate therein, and then fasten the nut 22 to the screw shaft 21 penetrating the hole 11, and the connecting shaft 22 provided in the holder support 20. ), The shaft hole 32 of the holder 30 in which the nut 31 is accommodated. For reference, the nut 31 accommodated in the holder 30 is connected to the shaft hole 32.

As described above, a plurality of holders 30 are fixed to the aluminum formwork 10 as shown in FIG. 2, and concrete is attached to the aluminum formwork 10 to which the holder 30 is attached as shown in FIG. 3. After pouring mortar, they will cure concrete mortar for a period of time.

After the concrete mortar is cured and the aluminum formwork 10 is removed, the connecting shaft 23 fitted in the holder 30 is separated from the shaft hole 32, and the holder is formed on the surface of the cured concrete structure 1 as shown in FIG. 4. Only the shaft hole 32 of 30 is exposed. Of course, the body of the holder 30 in which the nut 31 is stored is embedded in the concrete structure 1.

When the screw shaft 40 having a predetermined length is inserted into the shaft hole 32 of the holder 30 and fastened to the nut 31, the screw shaft 40 is connected to the holder 30.

As described above, when the holder support 20 is fixed to the hole 11 of the aluminum formwork 10 among the components of the holder buried currently, it is necessary to fasten the nut 22 to the screw shaft 21 one by one. The work process takes a long time and the nut 22 is relaxed by vibration generated when the concrete mortar is poured into the form, causing a problem that the axis of the connecting shaft 23 is twisted.

When the axis of the connecting shaft 23 is twisted, the arrangement angle of the holder 30 fitted to the connecting shaft 23 is also twisted so that when the concrete mortar is cured, the shaft hole 32 of the holder 30 is hardened in the twisted position. do.

As a result, it becomes difficult to correctly connect the screw shaft 40 inserted into the twisted shaft hole 32, and a problem that the drill shaft is drilled and the anchor bolt is driven around the shaft hole 32 in the conventional manner to connect the screw shaft 40. In addition, since the aluminum formwork 10 is supported by the adjustable scaffold 2 as shown in FIG. 1, the aluminum formwork supported by the scaffold in the narrow space between the scaffolds is in the high position aluminum formwork. (10) The working environment for fastening the nut 22 to the screw shaft 21 of the support body 20 protruding to the bottom surface is poor, and the work efficiency is inevitably slowed, causing air delay.

The present invention has been made to solve the problems caused by the conventional holder installation as described above, the object of the present invention is to firmly support the holder support for fixing the holder to the aluminum formwork to support the holder embedded in concrete mortar Holder for fastening and fastening the holder support to the aluminum formwork so that the axis of the holder support is not deformed by external pressure during the concrete mortar pouring process, and the holder supporting the holder support in a good working environment. It is to provide a support for fixing.

Solution for implementing the holder support for embedding the holder into the concrete structure according to the present invention,

One end is provided with a connecting shaft 101 is provided with an inner diameter 102 narrow to the lower side, the other end is inserted into the hole 11 provided in the aluminum formwork 10 while the inner diameter 102 of the connecting shaft 101 A support 100 including an annular connecting projection 103 having a small diameter through hole 104 which is narrowed downward while passing through;

Wedge 110 is inserted into the inner diameter of the connecting shaft 101 to increase the outer diameter of the annular connecting projection 103 and

It can be achieved by the configuration of the holder 30 is provided with a shaft hole 32 into which the connecting shaft 101 of the holder support 100 is inserted and in communication with the shaft hole 32. .

According to the present invention, if the outer diameter of the annular connecting projection inserted into the aluminum die hole is forcibly enlarged by forcibly hitting the wedge with a hammer or a tool at the inner diameter of the connecting shaft in the plane of the aluminum formwork, the annular connecting projection with an expanded outer diameter The support is firmly fixed in the hole of the aluminum formwork. The holder can be stably fixed by inserting a shaft hole of the holder into a connecting shaft of the holder support fixed to the aluminum formwork.

Therefore, the present invention can firmly fix the holder support in the plane of the aluminum formwork to the aluminum formwork surface in a stable working environment, and also fasten the nut to the screw shaft at the bottom of the aluminum formwork as in the conventional holder fixing support. Compared to the workability is very simple and quick effect.

1 is an exploded perspective view of a conventional holder and holder support embedded in a concrete structure for hanging various facilities,
Figure 2 is an illustration of the installation state of the holder support illustrating a state in which the conventional holder and the holder support attached to the aluminum formwork,
Figure 3 is a sectional view of the main portion of the support illustrating that the concrete mortar is cast in a state in which the holder is connected to the conventional holder support attached to the aluminum formwork,
4 is a cross-sectional view of a main part of a conventional holder support illustrating that the screw shaft is connected to a holder embedded in a cured concrete structure;
5 is an exploded perspective view of a holder and a holder support according to the present invention;
Figure 6a is a sectional view of the main portion illustrating a state before expanding the annular connecting projection of the holder support according to the present invention,
Figure 6b is a sectional view of the main portion illustrating a state in which the annular connecting projection of the holder support according to the present invention is expanded,
Figure 7 is a sectional view of the main portion of the holder and the support illustrating that the concrete mortar is cast in the state in which the holder is connected to the holder support attached to the aluminum formwork according to the present invention, and
8 is a cross-sectional view illustrating main parts illustrating a state in which a screw shaft is connected to a holder embedded in a cured concrete structure according to the present invention.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of a holder support for embedding a holder into a concrete structure according to the present invention will be described in detail.

5 to 8, the holder support 100 embedded in the concrete structure according to the present invention is attached to the holder 30 and the holder support 100 and the holder support 100 as shown in FIG. Paper is composed of aluminum formwork (10).

The holder 30 has the same configuration as described in the background art of the present invention and is denoted with the same reference numeral for the same configuration.

The holder support 100 is made of aluminum, and is provided with a connecting shaft 101 having an outer diameter extending to a predetermined length on the upper side and forcibly fitted into the shaft hole 32 of the holder 30, and the connecting shaft 101. On the other side of the) is provided an annular connecting projection 103 having a height corresponding to the thickness of the aluminum formwork (10).

Between the connecting shaft 101 and the annular connecting projection 103, a stopper 106 having a diameter larger than the diameter of the hole 11 provided in the aluminum formwork 10 is integrally provided.

The stopper 106 limits the depth at which the annular connecting projection 103 is inserted into the hole of the aluminum formwork.

The connecting shaft 101 has an inner diameter 102 drilled toward the annular connecting projection 103 while gradually narrowing downward to the lower side, and the inner diameter 102 of the connecting shaft 101 has an annular connecting projection 103. It penetrates in the axial direction and is connected to the small diameter through hole 104 formed on the surface of the annular connecting projection 103. The wedge 110 is inserted into the inner diameter 102 of the connecting shaft 101.

The aluminum formwork 10 has a hole 11 having a diameter on which the annular connecting projection 103 of the holder support 100 can be inserted.

An example of attaching a holder support embedded in a concrete structure according to the present invention configured as described above will be described with reference to the accompanying drawings.

As shown in FIG. 4, the annular connecting protrusion 103 of the holder support 100 is inserted into the hole 11 in the plane of the aluminum formwork 10 and then wedged into the inner diameter 102 of the connecting shaft 101. When inserting 110, and hitting the upper end of the wedge 110 using a tool such as a hammer, the outer diameter of the annular connecting projection 103 is forcibly expanded while the small diameter through hole 104 is expanded by the wedge.

When the outer diameter of the annular connecting projection 103 is enlarged, the notch portion divided radially outwardly of the annular connecting projection 103 while being connected to the small diameter through hole 104 so that the diameter-expanding effect of the annular connecting projection 103 is improved. (105) It is preferable to provide further. Notch 105 may not only improve the diameter action of the annular connecting projection 103 by the wedge 110, but also ensure the insertion length of the wedge sufficiently, the annular connecting projection 103 is enlarged by the reaction It can be supported so that it is not reduced.

The holder support 100 into which the aluminum formwork 10 is inserted into the hole 11 is firmly fixed by the expansion of the outer diameter of the annular connecting projection 103.

As shown in FIG. 2, the shaft hole 32 of the holder 30 is inserted into the connecting shaft 101 of the holder support 100 fixed to the aluminum formwork 10, and the aluminum formwork 10 to which the holder 30 is attached. After pouring concrete mortar into concrete mortar for a certain time and removing the aluminum formwork, the holder 30 is embedded in the cured concrete structure 1 and only the shaft hole 32 is exposed to the surface of the concrete structure.

When the screw shaft 40 is inserted into the shaft hole 32 and fastened to the nut 31 stored in the holder 30, the screw shaft 40 is connected to the holder 30.

The screw shaft 40 coupled to the holder 30 connects a tray (shelf) or an iron structure or a bent iron piece to support various facilities, and constructs a desired facility.

As described above, in the present invention, the holder support for the facility hanger embedded in the concrete structure can fix the support to the formwork on the upper surface of the aluminum formwork so that the working environment is very good, and the wedge is screwed to enlarge the annular connecting projection. Since it can be firmly fixed to the hole of the formwork, the attachment work of the support provides a very quick and convenient effect.

<Description of the symbols in the main part of the drawing>
10: holder support 101: connecting shaft
102: inner diameter 103: annular connecting projection
104: through hole 106: stopper
110: wedge

Claims

One end is provided with a connecting shaft 101 is provided with an inner diameter 102 narrow to the lower side, the other end is inserted into the hole 11 provided in the aluminum formwork 10 while the inner diameter 102 of the connecting shaft 101 A support 100 including an annular connecting projection 103 having a small diameter through hole 104 which is narrowed downward while passing through;
Wedge 110 is inserted into the inner diameter of the connecting shaft 101 to increase the outer diameter of the annular connecting projection 103 and
A concrete structure comprising a holder 30 having a shaft hole 32 into which the connecting shaft 101 of the holder support 100 is inserted and communicating with the shaft hole 32 and having a nut 31 stored therein. Holder support for embedding the holder in water.

The method of claim 1,
Holder support for embedding the holder into the concrete structure, characterized in that the annular connecting projection 103 is connected to the small diameter through-hole 104, the cutout portion 105 is divided radially outward.