KR200362839Y1 - Fixing structure for big-size concrete form - Google Patents

Abstract

The present invention is devised to solve the problems caused in fixing the large formwork and the earth wall, a fastener fastened to the earth wall and the connector having a coupling hole hinged to the fastener and a plurality of through holes on the inner side, It is an object of the present invention to provide a large formwork fixing structure for underground retaining walls, which is connected to the connector so that the large formwork and the earth wall can be firmly connected and fixed by the formwork connector fixed by the large fixture.

To this end, the large formwork fixing structure for the underground retaining wall according to the present invention has a hinge coupling hole 11 formed on one side thereof and bent to correspond to the other end of the hinge coupling hole in both directions, and a bolt fastening hole 12 formed thereon. A fastener 10 having a coupling piece 14 through which a preliminary nail hole 13 passes through one end of the bolt fastening hole; A long connector 20 through which a hinge hole 21 hinged by a hinge pin is connected to a hinge coupling hole of the connector, and a plurality of fixing holes 22 are penetrated at equal intervals on an inner side thereof; The formwork connector 30 formed in a rectangular shape having a first connection hole 31 having the same inner diameter as the plurality of fixed holes inside the connector and a second connection hole 32 formed at the other end of the first connection hole. )Wow; It characterized in that it comprises a fixture 40 is fitted to any one of the coupling hole of the coupling hole and a plurality of coupling holes in the connector.

Description

FIXING STRUCTURE FOR BIG-SIZE CONCRETE FORM}

The present invention relates to a formwork fixture that is installed to build a base retaining wall when constructing a concrete structure. More specifically, a large formwork is firmly fixed to earthwork to prevent deformation due to the pressure of concrete and to reduce the man-hour, thereby reducing installation costs. In addition, the present invention relates to a large formwork for underground retaining walls, which facilitates the installation work through the through-holes.

In general, in order to build a concrete structure on the ground, the basement layer that is the foundation of the structure must be constructed first. In order to construct the basement layer, it is necessary to construct the retaining wall in the basement to form the outer wall of the basement layer.

The retaining wall is a wall structure that prevents soil from collapsing by preventing earth pressure, and is an anti-earth pressure structure that maintains stability by using the weight of the wall itself and frictional force of the bottom surface, and the earth pressure acting on the wall and the load on the soil. In addition, by adjusting the bearing capacity of the ground, it is designed to ensure the stability of the structural member and the entire wall to collapse or slip.

Therefore, in order to install the retaining wall in the basement, the ground is dug and the H-shaped beam is placed in the supporting part where the retaining wall is formed. After the main wall is formed, the mold is fixed to maintain a constant distance from the formwork, and the concrete is poured between the formwork wall and the formwork to form the retaining wall.

As a means for fixing the formwork and the earth wall, wood or the like is sandwiched between the formwork and the earth wall.

However, when concrete is poured into a space formed between the formwork and the earth wall fixed by the fixing means as described above, it is charged between the formwork and the earth wall by the heavy pressure of the concrete to be poured to maintain a constant space between the formwork and the earth wall. Formwork is pushed outwards as the lumber is pulled out or broken so that the thickness of the retaining wall is not constant and the filling phenomenon occurs so that the outer surface of the retaining wall cannot maintain a constant surface.

On the other hand, in order to solve the above problems, a form fixing device for building a basement retaining wall, which is registered utility model No. 249941 has been devised. This, as can be seen by the claims described in the registration publication, to form a screw on one side to be fixed with the earth wall, and the other side to form a bolt head, but from the bolt head to form a hollow portion which is a threaded groove therein And a gap retaining nut having one end fixed to the hollow part of the fixing bolt and maintaining a gap with the earth wall at the thickness of the concrete, and fastening the washer and the wing nut to the other end to support the formwork with the horizontal and vertical trees. It consists of a threaded tightening screw part for tightening the formwork with the gap retaining nut and the wing nut.

Accordingly, although the problem caused by fixing the formwork by connecting the earth wall and the formwork by using a conventional wood, to some extent solves the problem, when the heavy pressure of the concrete to be cast is large, the fixing device is solid formwork As it is not supported, the outer wall surface of the retaining wall constructed is somewhat unreasonable.

In addition, in the process of connecting and fixing the earth wall and the formwork using the fixing device, the formwork should be installed so that the position connecting the earth wall and the formwork is always on the same line as the fixing devices have no fluidity, so that the working time There is a problem with this delay.

In this regard, the present applicant has devised a formwork for underground retaining wall, which is a utility model No. 320198, to solve the problems of the fixing device.

This is a formwork for fastening the earthwork wall and the formwork by coupling the connector installed in the formwork to one side as described in the claims of the registration publication, the fastening hole penetrates in the center and the fastening hole is connected to the fastening hole at one end A coupling part formed at both sides and having a connection piece extending at one end of the coupling piece, and one side of the coupling piece is hinged by a hinge pin, and the other end is formed of a connection part having a plurality of fitting holes, and fastened at the center thereof. A coupling part having a connecting piece having a ball penetrating through the fastening hole and an auxiliary fastening hole penetrated at one end thereof and having a connecting piece extending at one end of the coupling piece, and one side connected to the connecting piece of the coupling part by a hinge pin and the other end. The bolt fastening hole is formed, characterized in that consisting of.

Therefore, as the coupling part coupled to the earth wall and the connection part connected to the formwork is connected by a hinge pin to form a single body, the work of fixing the formwork can be easily made and the working time can be shortened. In addition, since the connecting portion is hinged to the coupling portion, up and down flow is possible at a predetermined angle, so that the connection work can be made firmly even if the connection position between the formwork and the earth wall is not on the same line, thereby fixing the formwork. It is simple to improve work efficiency.

However, the formwork for the basement retaining wall devised by the present applicant, there is no problem in connecting the relatively small formwork and the earth wall, but there is a problem that is somewhat insufficient to connect the large size formwork with the earth wall.

In recent years, in order to facilitate the installation of formwork, the formwork has become larger in size and the material is made of aluminum, so the formwork is securely connected to the large size formwork and the earth wall. There is a problem that can not give.

That is, since the large size formwork is poured in large quantities of concrete to be poured, the formwork for the basement retaining wall is formed in the process of pouring a large amount of concrete as it is connected by a connector and a so-called typin connected to the formwork. There is a problem that can not properly withstand the medium pressure of concrete.

The present invention is devised to solve the problems caused in fixing the large formwork and the earth wall, a fastener fastened to the earth wall and the connector having a coupling hole hinged to the fastener and a plurality of through holes on the inner side, It is an object of the present invention to provide a large formwork fixing structure for underground retaining walls, which is connected to the connector so that the large formwork and the earth wall can be firmly connected and fixed by the formwork connector fixed by the large fixture.

1 is a perspective view showing a state in which the fastener and the connector is a component of the large formwork fixing structure for the basement retaining wall of the present invention.

Figure 2 is an exploded perspective view showing the configuration of the fastener and the connector.

Figure 3 is an exploded perspective view showing a coupling state of the fastener and the connector and the formwork connector, which is a main component of the large formwork fixing structure for the basement retaining wall of the present invention.

Figure 4 is a cross-sectional view showing a state in which the earth wall and the large formwork is fixed by the large formwork fixed structure for the underground retaining wall according to the present invention.

Figure 5 is a cross-sectional view showing a state in which the earth wall and the large formwork is connected and fixed by another embodiment of the large formwork for underground retaining wall according to the present invention.

<Description of the code | symbol about the principal part of drawing>

10: fastener 11: hinge coupling hole

12: bolt fastening hole 13: spare nail hole

14: engaging piece 15: hinge pin

20: connector 21: hinge ball

22: fixing hole 30: formwork connector

31: first connection hole 32: second connection hole

40: fixture

In order to achieve the above object, the large formwork fixing structure for the basement retaining wall of the present invention has a hinge coupling hole through one side and bent to correspond to the other end of the hinge coupling hole in both directions, and one end of the bolt coupling hole and the bolt coupling hole inside. A fastener having a coupling piece through which a preliminary nail hole is formed at the side; A long connector having a hinge hole hinged by a hinge pin to the hinge coupling hole of the connector, and having a plurality of fixing holes penetrated at equal intervals on the inner side thereof; A formwork connector having a first connection hole having the same inner diameter as a plurality of fixed holes inside the connector and a second connection hole through the other end of the first connection hole; It characterized in that it comprises a fastener which is fitted to any one of the coupling hole of the coupling hole and a plurality of coupling holes in the connector.

The large formwork fixing structure for the basement retaining wall of the present invention, which is composed of the above characteristics, is large by a fastener with a large size, a connector hinged to the fastener, and a formwork connector fixedly connected to the connector by a separate fastener. As the formwork of the size and the earth wall can be firmly connected at a certain interval, the construction work is easy and the large size of the formwork is firmly installed, so that the heavy pressure of the concrete in the process of placing a large amount of concrete As the stress on the steel sheet is firmly established, a phenomenon such as collapse of the installed formwork is prevented.

Hereinafter, the configuration and operation of the large formwork fixing structure for basement retaining wall of the present invention will be described in more detail based on the accompanying drawings.

Figure 1 is a perspective view showing a state in which the fastener and the connector is coupled to the components of the large formwork fixing structure for the underground retaining wall of the present invention, Figure 2 is an exploded perspective view showing the configuration of the fastener and the connector, Figure 3 This is an exploded perspective view showing the coupling state of fasteners, connectors and formwork connectors, which are components of the large formwork fixing structure for underground retaining walls.

As shown, the large formwork fixing structure for the basement retaining wall of the present invention, the fastener 10 is bolted to one side of the earth wall, the connector 20 hinged to one side of the fastener, and connected to one side to this connector And the other side is composed of a formwork connector 30 is fixed to a large formwork, and a fixture 40 for fixing the connector 20 and the formwork connector 30.

The fastener 10 has a hinge coupling hole 11 through one side and bent in both directions corresponding to each other and bolt fastening holes 12 through the inner side of the bolt fastening hole 12. It consists of two engaging pieces 14 through which the preliminary nail hole 13 was perforated.

In addition, the connector 20, the hinge hole 21 is hinged by the hinge pin 15 to the hinge coupling hole 11 of the fastener 10 at one end through the hole, a plurality of fixed inside The balls 22 are evenly spaced and formed in an elongated shape.

In addition, the formwork connector 30, the first connection hole 31 having the same inner diameter as the fixing hole 22, a plurality of through holes in the inner side of the connector 20 and the other of the first connection hole (32) It has a second connecting hole 32 through the side end.

A method of connecting and fixing the formwork and the earth wall by the large formwork fixing structure for the underground retaining wall of the present invention configured as described above will be described with reference to FIG. 4.

First, the coupling piece 14 bent at the other end of the fastener 10 is positioned on one surface of the earth wall 50, and then using the preliminary nail hole 13 through the coupling piece 14. After fixing the fastener 10 by nailing, the position of the formwork 60 connected to the earth wall 50 is properly set, and then the bolt 16 is fastened to the bolt fastening hole 12 of the fastener 10. ) To fasten the fastener 10 firmly to one surface of the earth wall 50.

In addition, after positioning the hinge hole 21 through the hole on one side of the elongated connector 20 in the hinge coupling hole 11 through the one side of the fastener 10, the hinge pin 15 is inserted into the Connect the fastener 10 and the connector 20.

In addition, any one of the fixing holes 22, that is, the mold 60 and the earth wall 50 of the plurality of fixing holes 22 through the inner side of the connector 20 is maintained in the state After contacting the first connecting hole 31 of the formwork connector 30 to any one of the fixing hole 22, the connector 20 and the formwork connector 30 by inserting a separate fastener (40) ) To fix it.

The second connection hole 32 through the other end of the formwork connector 30 is configured to protrude from the outside of the formwork 60 as shown in Figure 4, now in the second connection hole 32 Fasten the separate fixture 41 to connect and fix the earth wall 50 and the large-sized formwork (60).

Therefore, even if a large amount of concrete is placed in the space formed between the large size formwork 60 and the earth wall 50, the earth wall 50 by the fastener 10, the connector 20 and the formwork connector 30. ) And the large size formwork (60) is firmly fixed to prevent accidents, such as the formwork is inclined.

The large formwork fixing structure for the underground retaining wall of the present invention, the connector 20 connected to the fastener 10 and the formwork connector 30 connected to the connector 20 are hinge pins 15, respectively, the fixture 40 As the hinge is coupled by the operator can be installed inclined in the upper or lower direction without placing the fastener 10, the connector 20 and the formwork connector 30 in a straight line as necessary. to be.

5 is a cross-sectional view showing the connection of the earth wire 50 and the large formwork 60 by connecting the iron wire 70 to the large formwork fixed structure for underground walls of the present invention.

As shown, after winding the iron wire 70 in any one of the fixing holes 22 of the plurality of fixed holes 22 through the inside of the connector, the end of the iron wire 70 is the large formwork 60 By tightening the end of the protruding iron wire 70 so as to protrude to the outside of the) is fixed connection between the earth wall 50 and the large formwork (60).

The large formwork fixing structure for the underground retaining wall of the present invention is capable of connecting and fixing the earth wall and the formwork of the large sized form by other methods in addition to the connecting method shown and described, and the embodiment is deformed without departing from the object scope of the present invention. All of them should be interpreted as being included in the scope of the present invention.

As described above, according to the large formwork fixing structure for the basement retaining wall of the present invention, a large size by a large fastener, a connector hinged to the fastener, and a formwork connector fixedly connected to the connector by a separate fastener As the formwork and earth wall of the can be connected firmly at a certain interval, the construction work is easy and the large size formwork is firmly installed, so that a large amount of concrete As the stress is firmly established, an effect such as collapse of the installed formwork is expected in advance.

Claims (1)

The hinge coupling hole 11 is perforated on one side, and is bent to correspond to the other end of the hinge coupling hole in both directions. The bolt fastening hole 12 and the preliminary nail hole 13 on one end of the bolt fastening hole are formed inside. A fastener 10 having a coupling piece 14 therethrough; A long connector 20 through which a hinge hole 21 hinged by a hinge pin is connected to a hinge coupling hole of the connector, and a plurality of fixing holes 22 are penetrated at equal intervals on an inner side thereof; The formwork connector 30 formed in a rectangular shape having a first connection hole 31 having the same inner diameter as the plurality of fixed holes inside the connector and a second connection hole 32 formed at the other end of the first connection hole. )Wow; The large formwork fixing structure for underground retaining walls, characterized in that it comprises a fastener (40) is fitted to any one of the coupling hole of the coupling hole and a plurality of coupling holes in the connector.