KR100221038B1 - Device for levelling slab concrete - Google Patents

Abstract

The present invention relates to a concrete level spacer, comprising: a base member (10) fixed in contact with a floor on which concrete is to be poured; A spring member 20 which is fixed to an upper portion of the base member 10; A bolt body 30 which is screwed to the nut body 31 fixed to the upper end of the spring member 20 and adjusted up and down; A female screw 42 is formed in the assembling hole 43 so as to be screwed to the bolt body 30, and the outer end is composed of a cap member 41 provided with a display piece 41 for measuring the level horizontally. By adjusting the length adjustment bolt 50 and the cap member 40 can be finely adjusted the height of the concrete.

Therefore, according to the design, it is possible to accurately cast the desired sleeve thickness on the fly, and its installation is easier and it is possible to display the normal height despite the supply pressure of concrete.

And, it is a very useful invention such as precise construction is possible by fine height adjustment.

Description

Level spacers for concrete

1 is an exploded perspective view illustrating the configuration of the present invention.

2 is a cross-sectional view illustrating a bonding state of the present invention.

3 to 4 are cross-sectional views illustrating another installation of the present invention.

5 is a principal view showing a state in which the cap of the present invention is disassembled.

* Explanation of symbols for main parts of the drawings

10: base member 20: spring member

30: bolt body 40: cap member

41: display

[TECHNICAL FIELD OF THE INVENTION]

The present invention relates to a level spacer for concrete, and more particularly, it is invented to make the installation work more convenient while maintaining a constant thickness during concrete placing.

[Prior art]

In general, the concrete placing work for the floor area of the building is mainly after placing the reinforcing bars in the longitudinal, transverse direction to the upper side of the form (G) to perform the concrete placing work.

Conventionally, in carrying out the pouring work, the overall level and thickness are adjusted according to the skill of the worker, but this is avoided as a cause of construction cost increase as a result of poor floor condition and high manpower and expense. have.

Therefore, a height indicator such as a bar is used.

[Technical problem to be achieved]

Conventionally, the height indicator of the bar or block type is often inconvenient to install, and when the concrete material is supplied at a relatively large pressure and load, it is often seen that the installed state is not kept down or falls apart.

In addition, depending on the installation conditions or the height of the pour surface designed to give a hassle and inconvenience in the work to produce the product in each given dimensions each time.

[Purpose of invention]

An object of the present invention is to provide a concrete level spacer to be used without regard to the concrete pouring method.

Another object of the present invention is to provide a concrete level spacer that is easier to install and to display the normal height despite the supply pressure of the concrete.

Yet another object of the present invention is to provide a concrete level spacer to allow fine height adjustment.

[Configuration of Invention]

Hereinafter, the technical configuration and effect of the present invention will be described in detail with reference to the accompanying drawings.

The present invention, the base member 10 is fixed in contact with the bottom surface is cast concrete;

A spring member 20 which is fixed to an upper portion of the base member 10;

A bolt body 30 which is screwed to the nut 31 fixed to the upper end of the spring member 20 and adjusted up and down;

In what consists of the cap member 40 screwed to this bolt body 30;

The outer side of the cap member 40 is provided with a display piece 41 for measuring the level horizontally, the base member 10 is formed with a rib 11 protrudes to prevent flow to the synthetic resin material, The grooves 12 are formed to be dug in several places to prevent the concrete material from filling and flowing by weight, and the nail N is fixed to the spacer grooves 13 and the form G to maintain the height of the reinforcing bars H. The passage hole 14 to be passed is achieved by drilling.

[Action of invention]

According to the configuration of the present invention described above, can be used without regard to the concrete placing method, it is easier to install and can display the normal height despite the supply pressure of the concrete.

In addition, fine height adjustment can be made to enable precise construction.

EXAMPLE

Hereinafter, preferred embodiments of the present invention will be described in detail.

1 shows an exploded view of the configuration of the present invention.

2 shows an operation in which the configuration of the present invention is adjusted to an assembled state.

The base member 10 as shown in the drawing is fixed in contact with the bottom of the concrete, the spring member 20, the bolt body 30 and the cap member 40 are assembled in order to stand vertically.

FIG. 1 illustrates a state in which the base member 10 is formed of a synthetic resin material, and ribs 11 are formed to prevent flow in the installed state, and the concrete material is filled so that it cannot be flowed by weight. The state in which the groove 12 is molded to be dug is shown.

In addition, in order to maintain the height of the reinforcing bar (H), the spacer groove 13 is molded in one direction while maintaining a predetermined height.

Then, to pass through the hole (14) through which the nail (N) passes so as to be fixed to the die (G) without flow.

FIG. 3 shows another embodiment of the base member 10. In addition to the synthetic resin injection molding, the steel sheet having excellent bonding strength with the concrete material is bent in a cap shape like approximately "Π".

The base member 10 made of iron pieces has flanges 15 formed at both lower ends of the lower ends so as to be fixed to the formwork G by nails, and the length adjustment bolt 50 is formed by drilling a hole in the upper center thereof. In the pass state, the lock nuts 17 are fastened to both sides of the lock nut 17.

In addition, the spacer member 16 for maintaining the installation height of the reinforcing bar H is simultaneously fastened between the lock nuts 17.

On the other hand, the base member 10 made of iron pieces in this way is convenient to perform the ceiling panel fixing work on the flange using the flange 15 when constructing the ceiling panel after construction.

4 shows another embodiment of the base member 10. The fixing nut is provided by providing the holder 19 with an inner diameter to which the fixing nut 18 can be fitted in the center of the base member 10 made of a thin iron plate. 18 shows an embodiment in which the length adjusting bolt 50 is fastened to the fixing nut 18 in a fitted state.

In this embodiment, the double-sided tape 60 is used as a means for fixing to the formwork (G).

This is suitable for cases where the nails are not nailed to the iron plate for tech plates.

On the other hand, the length adjustment bolt 50 is preferably installed between the spring member 20 and the base member 10 to set a larger variable height.

This is the case of the base member 10 made of a synthetic resin injection molding shown in Figures 1 and 2 assembling the length adjustment bolt 50 to the lower side of the spring member 20, the approximate height adjustment is this length adjustment bolt (50) The fine height adjustment is to adjust the height of the cap member 40 from the bolt body 30 by rotating the cap member 4 so that the fine adjustment is made.

The bolt body 30 is screwed to the nut body 31 fixed to the upper end of the spring member 20 and the concrete is filled with the cap member 40 having the female screw 42 on the upper part is screwed again The height is to install the level spacer for the concrete of the present invention in each of several places on the basis of the position of the display piece 41 of the cap member 40.

The display piece 41 also serves as a reference height for setting a staff for measuring at a height excluding the thickness of the slab in consideration of the state in which the slab is formed when the surveying operation is performed using the leveling machine for surveying at the construction site.

The spring member 20 is assembled in a state in which the spring member 20 is forcibly fitted into the base member 10 by the insert 21.

On the other hand, the cap member 40 is a synthetic resin material in the assembling hole 43 is drilled toward its lower side is formed with a female screw 42 for screwing to the bolt body 30, the female screw 42 is one line to It is good to mold small with only two lines.

This is to allow the cap member 40 to be more quickly separated during the pushing operation for leveling the concrete after the concrete material is properly casted to the position of the display piece 41 as shown in FIG.

At this time, the position where the cap member 40 is separated is filled with concrete again by the push operation.

Moreover, on the upper side of this display piece 41, the hexagonal head 44 is shape | molded a little high.

The head 44 serves as a handle for holding by hand and screwing and disassembling from the bolt body 30 so that the position of the level spacer for concrete of the present invention can be easily grasped.

On the other hand, the spring member 20 performs an elastic control role to make it stand vertically again by its elasticity even if temporarily bent by the concrete supply pressure.

Since this spring member 20 is molded with a metal material, it is excellent in affinity with the concrete to be poured.

Therefore, disadvantages such as the occurrence of a bonding gap after curing of concrete do not occur.

[Effects of the Invention]

As described above, according to the present invention, the height of the concrete can be finely adjusted by the rotation of the length adjusting bolt 50 and the cap member 40.

Therefore, according to the design, it is possible to accurately cast the desired sleeve thickness on the fly, and its installation is easier and it is possible to display the normal height despite the supply pressure of concrete.

And, it is a very useful invention such as precise construction is possible by fine height adjustment.

Claims (3)

A base member 10 fixed in contact with a floor on which concrete is poured; A spring member 20 which is fixed to an upper portion of the base member 10; A bolt body 30 which is screwed to the nut body 31 fixed to the upper end of the spring member 20 and adjusted up and down; In what consists of the cap member 40 screwed to this bolt body 30; The outer side of the cap member 40 is provided with a display piece 41 for measuring the level horizontally, the base member 10 is formed with a rib 11 protrudes to prevent flow to the synthetic resin material, The grooves 12 are formed to be dug in several places to prevent the concrete material from filling and flowing by weight, and the nails N are fixed to the spacer grooves 13 and the form G to maintain the height of the reinforcing bars H. Concrete level spacer, characterized in that the passage hole 14 is passed through. According to claim 1, wherein the base member (10) is bent in a cap-shaped metal piece to form a flange (15) so as to be in contact with the bottom both sides of the bottom horizontally, a hole in the upper center length adjustment bolt Concrete level spacer, characterized in that it is configured by fastening the lock nut 17 up and down on both sides together with the spacer member 16 for maintaining the installation height of the reinforcing bar (H) in the state passed through (50). The length adjusting bolt 50 is fastened to a fixing nut 18 fixed to the base member 10 by a holder 19 at a center of a metal plate, and a double-sided tape 60 is formed on a bottom surface of the base member 10. Concrete level spacers, characterized in that attached.