KR200342749Y1 - Device For Connecting Concrete Form - Google Patents

Abstract

It can be used for fixing the wall formwork, and is easy to install, separate, and transport the formwork, and can significantly shorten the time required for this and relates to a formwork fixing device that can improve the construction quality of the structure.

Such a formwork fixing device is a formwork fixing device that is easy to install and detach the inner and outer formwork located in correspondence with the inner and outer wall surfaces during wall construction,

An inner fixing bar fixing the inner formwork, an outer fixing bar detachably coupled to the inner fixing bar and fixing the outer formwork, a connector installed in the outer fixing bar and detachably connecting the inner fixing bar, and the outer fixing bar A support means detachably supporting the outer formwork,

The support means includes a fixing plate through which the outer fixing bar penetrates, a fastening member for separably fixing the fixing plate to the outer formwork, and a locking mechanism for connecting the outer fixing bar to the fixing plate in a fixed state.

Description

Formwork fixing device {Device For Connecting Concrete Form}

The present invention relates to a formwork fixing device, more specifically, can be used for fixing the wall formwork, and can be easily installed, separated, transported formwork can be significantly shortened the time required for this, and improve the construction quality It relates to a formwork that can be made.

In general, when forming a wall of an apartment or a building, two formwork is installed in the space corresponding to the thickness of the wall, that is, the inner wall and the outer wall, respectively, and the form fixing device is installed so that the gap can be maintained firmly. .

The fixing device is fastened in a posture penetrating two formwork to maintain the spacing of the formwork, the inner fixing bar positioned in a posture penetrating the inner wall side formwork, and penetrates in a posture corresponding to the inner fixing bar in the outer wall side formwork. It consists of an outer fixing bar which is fastened by a screw coupling, and a fixing pin for fixing the inner and outer fixing bar to the two formwork side separately.

At this time, a screw portion is formed on the engaging side front end of the inner fixing bar and is set in a normal posture corresponding to the outer wall side formwork spaced apart from the formwork through the inner wall side formwork.

In addition, the outer fixing bar is provided with a connector formed with a screw groove to be connected to the screw portion of the inner fixing bar, the inner fixing bar is fastened by screw coupling to the connector, and the free end side of the inner and outer fixing bars is fixed pin The two formwork is set to the posture for wall construction while being fixed to the inner and outer formwork respectively.

The connector is set so as to protrude between the two formwork spaced apart through the outer wall-side formwork, and when the curing of the wall is completed after the concrete is placed, the fastening with the inner fixing bar is released and can be easily separated from the cured wall For example, the diameter of both ends is made of a cone-shaped cylinder having different diameters.

The two formwork, that is, the formwork located on the inner wall side, use a functional panel such as a flow form, and on the outer wall side, a conventional gangform in which a reinforcement such as metal pipes is combined with a single panel body is used.

When the curing of the wall is completed by placing concrete between the inner formwork and the outer formwork set in the inner wall side and the outer wall side as described above, the formwork is dismantled from the wall, the inner formwork, that is, the euroform is the inner form Separate the pins connected to the fixing bar to separate the foam from the inner wall of the wall.

In addition, the outer formwork, that is, the gangform is released from the gangform by releasing the fastening of the outer fixing bar fastened to the inner fixing bar, and the gangform separated from the outer fixing bar is separated for example, such as a crane for the construction of the upper layer wall. It is conveyed as it is to the upper layer area by the conveying device of and is set again in the area for wall construction in the upper layer.

When dismantling the inner and outer formwork as described above, since the euroform is located in the interior of the building, but not described above, ceiling slabs, etc., are constructed together with the wall in the lower floor, so vertical transport is not possible in the assembled state due to the set position. Therefore, it is inevitable to separate them and transport them back to the upper floor area. Since the gangform is set in the outer area of the building, vertical transport is possible without being completely separated from the outer wall surface of the cured wall.

However, such a conventional formwork fixing device has a fixed length that is fixed to the formwork two fastening bar is fixed to two formwork only a certain interval, for example, various sizes depending on the thickness of the wall to be constructed In order to be installed in the formwork to be manufactured in accordance with the corresponding size of the fixed bar is to be manufactured, so it is difficult to expect a satisfactory installation compatibility in the structure. In addition, the outer fixing bar is made of a structure separated from the gangform to be stored and transported separately during the installation or transportation of the gangform not only become a factor to reduce the work efficiency, but also excessive time and cost, such as maintenance due to frequent loss There is a problem.

The connector connecting the inner fixing bar and the outer fixing bar has a single shape and is fixed to the outer fixing bar, so that it is difficult to release the fastening of the fixing bars by being firmly fixed inside the wall by pressure such as concrete after curing the wall. In addition, when the connector is forcibly separated, the wall is damaged, which is a factor in reducing work quality as well as work efficiency.

The present invention has been devised to solve the conventional problems as described above, the object of the present invention is not only easy to install and remove the formwork when transporting the wall of the building, but also to improve the work compatibility and the fixing force of the formwork. It is possible to secure, and to provide a die fixing device that can prevent the loss of parts for fixing the formwork.

In order to realize the object of the present invention as described above, as a formwork fixing device that is easy to install and detach the inner and outer formwork positioned corresponding to the inner and outer wall surface at the time of wall construction,

An inner fixing bar fixing the inner formwork, an outer fixing bar detachably coupled to the inner fixing bar and fixing the outer formwork, a connector installed in the outer fixing bar and detachably connecting the inner fixing bar, and the outer fixing bar A support means detachably supporting the outer formwork,

The supporting means includes a fixing plate including a fixing plate through which the outer fixing bar penetrates, a fastening member for separably fixing the fixing plate to the outer formwork, and a locking mechanism connecting the outer fixing bar to the fixing plate in a fixed state. to provide.

1 is an overall perspective view showing a state in which the formwork fixing device according to the present invention is set in the formwork.

Figure 2 is a perspective view of the main coupling of Figure 1;

Figure 3 is an exploded perspective view for explaining the formwork fixing structure of the formwork fixing device according to the present invention.

4 is a side cross-sectional view of the combination of FIG.

5 is a cross-sectional view showing a state in which concrete is poured in the state of FIG.

6 is a cross-sectional view showing a structure in which the support means of FIG. 3 is fixed to the formwork.

7 is a plan view for explaining a locking structure of the support means lock of FIG.

8 is a cross-sectional view showing a state in which the outer fixing bar is locked by the lock of FIG.

9 is a cross-sectional view illustrating a state in which the outer fixing bar is unlocked by the locking tool of FIG. 3.

10 is an overall perspective view showing a state in which the two formwork is set by the fixing device for wall construction.

11 is an overall perspective view showing a state in which concrete is poured and cured between two formwork in the state of FIG.

12 is a partially enlarged cross-sectional view for explaining a process of dismantling the formwork after curing the wall of FIG.

FIG. 13 is a partially enlarged cross-sectional view illustrating a process of separating the inner fixing bar and the outer fixing bar when disassembling the formwork such as 12.

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

1, 2, and 3, the formwork fixing device according to the present invention, the inner fixing bar (2) for fixing the inner formwork F1 located in the inner wall surface area, and the inner fixing bar (2) And an outer fixing bar 4 detachably coupled to the outer fixing bar 4 for fixing the outer formwork F2 located in the outer wall region, and installed in the outer fixing bar 4 and detachably connecting the inner fixing bar 2. And a support means 8 for detachably supporting the outer fixing bar 4 from the outer formwork F2.

In this embodiment, the inner formwork (F1) and the outer formwork (F2) is shown as an example that the flow path and the gangform of the shape as shown in the drawing is used. These euroforms and gangforms are formwork widely used in the construction of walls of buildings. Briefly describing their structures, the euroforms are formed in a number of positions in the same manner as in the drawings so as to define an inner wall surface as shown in FIGS. 1 and 4. A dog is located, and a reinforcing rib is formed at the rim so that these ribs are formed by a fitting engagement of a connecting member such as a pin.

And, the gangform is made of a single plate as shown in the figure so as to define the outer wall surface corresponding to the inner formwork (F1), as shown in Figure 1 and 4 and one side of the plate as shown in the figure It is a formwork structure for a conventional outer wall in which the support 10 is installed in a posture where the pipes cross each other.

The inner fixing bar 2 has a constant diameter and penetrates the inner formwork F1 in a posture as shown in FIG. 4, and then postures as shown in the connector 6 installed in the outer fixing bar 4 to be described later. It is manufactured in the range that can be fastened to.

And, one side of the inner fixing bar (2) is formed with a fixing hole 14 to which the fixing pin 12 is fitted as shown in Figure 3, the other end is to be fastened by screw connection with the connector 6 to be described later The threaded portion 16 is formed to be able to.

Although the fixing hole 14 is not shown in the drawing when the inner fixing bar 2 is set in the inner mold F1, the freeness of the inner fixing bar 2 is provided in a reinforcing rib or scaffolding frame of the inner mold F1. The end side is to be fitted by the fixing pin 12 to be fixed.

The material of the inner fixing bar 2 may be made of a metal or a synthetic resin having a light weight and excellent durability and corrosion resistance.

The outer fixing bar 4 has a constant diameter and is connected to the inner fixing bar 2 through the outer formwork F2 as shown in FIG. 4, and a free end side of the outer fixing bar 4 is as shown in the outer formwork F2 as shown in FIG. 4. It is manufactured in a length range that can protrude to a certain length.

The material of the outer fixing bar 4 may be made of a metal or synthetic resin material excellent in durability and corrosion resistance, and as shown in Figure 3 is easy when the free end side is fastened by screwing the inner fixing bar (2) For example, a hex bolt head-shaped protrusion 18 is formed to be rotated.

Holes G are formed in the inner and outer molds F1 and F2 through which the inner fixing bar 2 and the outer fixing bar 4 pass, as shown in FIG. 4 so that the fixing bars 2 and 4 can pass therethrough. Is formed.

The connector 6 is manufactured in the shape of a cone-shaped cylinder as shown in FIG. 3 and positioned at the fixed end side of the outer fixing bar 4 as shown in the drawing. At this time, the connector 6 is integrally and firmly fixed by bolting or welding so as to be rotated in the same direction during the fastening operation of the outer fixing bar (4).

The connector 6 is formed with a flange (P) portion of the shape as shown in Figure 3 in the engaging portion region with the outer fixing bar (4). When the flange portion P is formed in this way, when the outer fixing bar 4 penetrates the hole G of the outer formwork F2, the flange P has the outer formwork F2 as shown in FIG. 4. The connector 6 may always be set at a constant position by contacting the hole G region of the.

In addition, the connector 6 is provided with a cap 20 surrounding the entire outer circumferential surface of the connector 6 in the same shape as shown in FIG. 4, as shown in FIG. 4. The cap 20 can be made of a synthetic resin having a certain elasticity, is a structure that is separably fixed by the fitting coupling on the outer peripheral surface of the connector (6).

When the cap 20 is installed in the connector 6 as described above, the connector 6 is fixed to the inner fixing bar (2) and the outer fixing between two formwork, that is, the inner formwork (F1) and the outer formwork (F2) After connecting the bar (4) and the cured concrete is cured as shown in Figure 5 between the inner formwork (F1) and the outer formwork (F2) after separating the outer fixing bar (4) from the inner fixing bar (2) When the cap 20 is detachably fitted to the outer circumferential surface of the connector 6, the connector 6 smoothly rotates inside the cured wall W so that the inner fixing bar 2 The outer fixing bar 4 can be easily removed.

If the connector 20 is manufactured in a single form without the cap 20 as described above, when the poured concrete is cured, the concrete hardens in a state where the concrete adheres to the outer circumferential surface of the connector 6. Separating the outer fixing bar 4 from the fixing bar 2 is not only difficult but also takes an excessive amount of time. Furthermore, if the outer fixing bar 4 is forcibly rotated in the state in which concrete adheres to the outer circumferential surface of the connector 6 as described above, as well as the connector 6, the wall region into which the connector 6 is inserted may be damaged. have.

On the other hand, the outer fixing bar 4 is fixed by the support means 8 in the outer formwork (F2), the structure of such a support means 8 will be described in more detail as follows.

1 to 3, 4, the support means 8 may include a fixing plate 22 through which the outer fixing bar 4 penetrates, and the fixing plate 22 from the outer formwork F2. Fastening member 24 for fastening and fastening, and a fastener 26 for connecting the outer fixing bar 4 to the fixing plate 22 in a temporarily fixed state.

The fixing plate 22 is made of a metal material having a predetermined thickness and is manufactured in a shape as shown in FIG. 3 and positioned on the support 10 of the outer formwork F2 as shown in the drawing.

As shown in FIG. 3, a guide hole 28 through which the outer fixing bar 4 penetrates is formed in the fixing plate 22.

The fastening member 24 is for fixing the fixing plate 22 to the outer formwork F2, ie, the support 10 of the gang form, as shown in FIG. 3, as shown in FIG. As shown in FIG. 6, a bolt having a shape of a magnet encapsulates both ends of the fixing plate 22 by screwing.

As described above, when the fastening member 24 has a bolt structure having a “U” shape, it is easy in the longitudinal direction of the support 10 without being restricted in position when fixing the fixing plate 22 to the support 10. Can be set while adjusting the position.

In the above, the fastening member 24 is made of an “U” shaped bolt as an example and is shown in the description and drawings, but is not limited thereto. For example, the fixing plate 22 may be directly fixed to the support 10 by being fastened in a posture penetrating the fixing plate 22 and the support 10 using a normal “-” ruler bolt.

The locking device 26 is for changing the fixing position of the outer fixing bar 4 positioned in the posture penetrating the fixing plate 22 so as to be changeable. It is shown as an example that is formed in a plate shape having a guide plate 30 formed in the guide hole 28 region of the fixing plate 22 to be slidable in the vertical direction.

The locking hole 26 is formed with a locking hole 32 for fixing or releasing the outer fixing bar 4 by physical contact corresponding to the guide hole 28 region of the fixing plate 22.

As shown in FIG. 3, the locking hole 32 has a single groove structure in which two holes 34a and 34b having different perforation areas are connected in the same shape as in the drawing. At this time, the area of the lower side hole 34a is within the size range through which the outer fixing bar 4 can pass, and the area of the upper side hole 34b is the outer circumferential surface of the outer fixing bar 4 as shown in FIG. 7. It is made in the size range corresponding to the engaging groove 36 cut in.

The locking groove 36 may be spaced apart in the longitudinal direction of the outer fixing bar (4) as shown in Figure 7 can be formed as shown in the figure, constant as shown in the outer peripheral surface of the outer fixing bar (4) Dig deep into a stepped structure.

The locking device 26 may be provided with a stopping device 38 so that the locking device 26 can be moved upward from the fixing plate 22 to stop in the unlocked state of the outer fixing bar 4. have. In this embodiment, as shown in FIG. 8, the pressing member 40 such as a ball in the lower region of the locking hole 26 is set to be supported by the elastic member 42 as shown in the drawing, so that the elastic member 42 The structure which pressurizes the surface of the said fixed plate 22 by elasticity is shown as an example.

That is, when the stopper 38 moves the locking device 26 upward from the fixing plate 22, the pressing member 40 moves the surface of the fixing plate 22 by the elasticity of the elastic member 42. By pressing, the locking device 26 is configured to stop at the position as shown in FIG. 9 on the fixing plate 22. At this time, when the pressing member 40 is installed in the locking hole 26, the fixing plate 22 in the locking plate 26 is moved downward to lock the outer fixing bar (4) in the state It is provided in the area | region which does not contact the surface of 22.

Next, the installation example of the preferred wall formwork when building the wall using the formwork fixing device according to the present invention made of the above-described structure in detail as follows.

First, as shown in FIG. 1, the inner formwork F1 and the outer formwork F2 are set in the vertical direction at the bottom as shown in the figure, and then the inner formwork F1 and the outer formwork F2 are as shown in the drawing. Fasten the formwork fixing device to the formwork (F1, F2) as follows to be fixed in a spaced position.

The fastening of the formwork fixing device is the inner fixing bar as shown in Figure 1 to the inner formwork (2) and the outer formwork (4) to the inner formwork (F1) and the outer formwork (F2) is completed as described above in the state (2) and the outer fixing bar (4) after inserting the inner fixing bar (2) and the outer fixing bar (4) using the connector 6 installed in the outer fixing bar (4) as shown in FIG. Connect in posture as shown.

At this time, the outer form (F2), that is, the support 10 of the gangform, as shown in Figure 1 by the support means 8, that is, the fastening member 24, the fixing plate 22 and the locking device 26 as shown in the drawing The outer fixing bar 4 is connected to the inner fixing bar 2 while passing through the fixing plate 22 in the same posture.

After the fastening of the inner fixing bar 2 and the outer fixing bar 4 is completed by the above process, as shown in FIG. 4, the free end side fixing hole of the inner fixing bar 2 protruding from the inner formwork F1 ( 14) by fastening the fixing pin 12 is firmly fixed to the inner formwork (F1). At this time, although the fixing pin 12 is not shown in the drawing, the free end side of the inner fixing bar 2 may be fixed to the reinforcing rib or the scaffolding frame of the inner formwork F1.

In addition, the outer fixing bar 4 moves the locking hole 26 of the supporting means 8 downward to lock the hole 32 in the locking groove 36 of the outer fixing bar 4 as shown in FIG. 7. The outer mold (F2) is firmly fixed to the outer fixing bar (4) as shown in Figure 4 so that the area of the upper hole (34b) of the).

At this time, the fixing position of the outer fixing bar (4) can be easily adjusted within the range corresponding to the locking groove 36 formed on the outer fixing bar (4) by using the locking hole (26) It can be set to correspond to the size of the formwork or the thickness of the wall to be constructed.

The formwork fixing device may be installed in a plurality of spaced apart from the above structure so as to secure the support and the fixing force required for the formwork according to the size or structure of the wall (W) to be constructed.

When the fastening of the formwork fixing device is completed as described above, as shown in FIG. 10, the setting of the wall formwork F1 and F2 is completed, and the concrete between the inner formwork F1 and the outer formwork F2 in this state. You can cure by pouring a certain period of time.

When the curing of the wall (W) is completed as shown in Figure 11 by the above process, the inner layer (F1) and the outer formwork (F2) by dismantling the upper layer wall is constructed on the constructed wall (W). The dismantling operation of the inner formwork F1 and the outer formwork F2 is performed by first separating the fixing pins 12 fastened to the distal ends of the inner formwork F1 and the inner fixing bar 2 as shown in FIG. 12. The inner formwork F1 is separated from the inner wall surface of the wall W.

At this time, a free end of the inner fixing bar 2 protrudes from the inner wall surface of the wall (W) from which the inner formwork F1 is separated, as shown in FIG. 12. You can remove it by hitting the protrusion with a separate tool.

Then, the outer formwork (F2) releases the lock 26 holding the outer fixing bar (4) as shown in Figure 13 and then rotate the outer fixing bar (4) as shown in the figure to fix the inner Separate from bar (2).

The separation of the outer fixing bar 4 is to rotate the hexagonal projections 18 formed at the tip of the outer fixing bar 4 by using a tool such as a wrench, the connector 6 is rotated in the same direction. While the fastening state with the inner fixing bar (2) fixed in the wall (W) is released while being separated.

At this time, the cap 20 is installed on the outer circumferential surface of the connector 6 to cover the entire outer circumferential surface of the connector 6 during concrete placement and curing. Since the connector 6 can be prevented from being fixed to the inside of the wall W due to the concrete pressure, the connector 6 smoothly rotates when the outer fixing bar 4 is separated from the inner fixing bar 2. It can be easily separated.

The outer fixing bar 4 separated from the inner fixing bar 2 by the above process is moved so as not to contact the outer wall surface of the wall W in the outer formwork F2 as shown in FIG. Locking (26) again to fix it in the state caught on the fixing plate (22).

When the separation of the outer fixing bar (4) is completed as described above, the outer formwork (F2), that is, the gangform is located on the upper floor wall construction as shown in Figure 12 using a hook (H) connected to a separate transport device such as a crane Carrying to the area may be installed formwork for wall construction in the same manner as the above fastening process.

At this time, the outer fixing bar (4) is transported together in a state fixed to the outer formwork (F2) by the support means (8) does not need to be separated and stored separately, even when installing the wall formwork in the upper layer area Since it is fastened to the inner fixing bar (2) in a state fixed to the support means (8) can significantly shorten the working time accordingly, and can prevent the loss of parts such as the fixing bar during the installation or disassembly of the formwork. have.

In the above description of the preferred embodiment of the formwork fixing device according to the present invention, the present invention is not limited to this, but the present invention is not limited to the utility model registration claims and detailed description of the invention and the scope of the accompanying drawings to be carried out in various ways It is possible and this also belongs to the scope of the present invention.

As described above, the formwork fixing device according to the present invention is composed of two fixing bars corresponding to two wall formwork, and consists of support means for physically fixing one side fixing bar to the outer wall side formwork so that the two fixing bars are fastened during construction of the wall. In addition, the formwork can be easily fixed to the wall formwork, and the one side fixing bar is fastened to or detached from the other side fixing bar in a state of being fixed to the outer wall side formwork by the supporting means, so that the formwork can be installed and dismantled, as well as being prevented from being lost during transportation. This can greatly improve work efficiency and reduce the cost of maintenance.

The support means includes a fixing plate movably fixed to the outer wall side formwork by a fastening member and a locking mechanism for variably fixing the position of the fixing bar in the fixing plate to fix the fixing bar to the outer wall side formwork. In addition, the locking mechanism is a structure that locks or releases by physical contact with the fixing bar while sliding in the fixing plate by a one-touch operation, and thus is easy to operate and fastens the fixing bar to physical vibrations or shocks generated during wall construction. The state can be kept firm.

In addition, the connector connecting the two fixing bars by screw coupling is manufactured in a cone-shaped cylindrical shape and the cap is installed to cover the entire outer circumferential surface to prevent the connector is fixed in the wall after curing the wall of the fixing bars Not only can the separation operation be easily performed, but also a good construction quality can be obtained by preventing the area in which the connector is inserted is damaged from the wall surface.

Claims (8)

As the formwork fixing device that is easy to install and detach the inner and outer formwork located in correspondence with the inner and outer wall surface when constructing the wall, An inner fixing bar fixing the inner formwork, an outer fixing bar detachably coupled to the inner fixing bar and fixing the outer formwork, a connector installed in the outer fixing bar and detachably connecting the inner fixing bar, and the outer fixing bar A support means detachably supporting the outer formwork, The support means includes a fixing plate through which the outer fixing bar, a fastening member for separably fixing the fixing plate to the outer formwork, and a fastener for connecting the outer fixing bar to the fixing plate in a fixed state. The die holding device according to claim 1, wherein the fastening member is a "U" bolt. The method of claim 1, wherein the lock is formed with a hole through which the outer fixing bar is formed, the hole is made of a single hole connected to the two different perforation area is connected to the direction perpendicular to the penetrating direction of the outer fixing bar Form fasteners that lock or unlock. The method of claim 1, wherein the formwork fixing device further comprises a stopper for stopping the lock in the state in which the lock or locking operation in the fixing plate, The stopper includes a pressing member made of a ball or a pin, and an elastic member for moving the pressing member in the pressing direction by elasticity, wherein the pressing member is set so as to press the fixing plate or the locking mechanism. Device. The die fixing device of claim 1, wherein the connector is formed in a cone-shaped cylinder, and a cap is installed on an outer circumferential surface thereof. The die fixing device according to claim 5, wherein the cap is made of a synthetic resin or metal material that can cover a predetermined thickness corresponding to the outer circumferential surface of the connector, and is detachably fitted to the outer circumferential surface of the connector. The method of claim 1, wherein the outer fixing bar is provided with a locking groove is inserted into the hole of the lock to maintain the locked state, the locking groove is formed one or more spaced apart in the penetrating direction of the fixing bar Formwork fixture. The method according to claim 1, wherein the flange is formed in the coupling region of the connector and the outer fixing bar, the flange is formed larger than the diameter of the connector and the outer fixing bar fixed to form a guide so as to penetrate only the connector in the outer formwork Device.