KR20100010561A - Fixing device for gang form - Google Patents

Abstract

The present invention relates to a form fixing device, and more particularly to a form fixing device to facilitate the installation and dismantling process for the gangform.

To this end, a gap between a gang form constituting the outer wall formwork of concrete, a plurality of horizontal bars and vertical bars fixed to the outside of the gang form to support the gang form, and a flow form forming the inner wall side form of concrete through the gang form In the gangform fixing device to maintain the, The gangform fixing device is in close contact with the entire surface of the vertical bar, the contact plate is formed through the through; Through the through hole of the contact plate through the gangform exposed to the euroform through the gangform A body bolt comprising; a support member for selectively adhering the contact plate to the vertical bar, wherein the support member is installed on the contact plate, and has an elastic force on each rear surface of the vertical bar through the space between the vertical bars. It provides a gangform fixing device characterized in that the hanging.

Description

Gangform fixing device {fixing device for gang form}

The present invention relates to a gangform fixing device, and more particularly to a gangform fixing device to be easily detached to the gangform constituting the formwork side of the building.

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. An outer fixing bar which is fastened by a screw coupling, and the fixing pin for detachably fixing the inner and outer fixing bar to the two formwork side.

At this time, a screw portion is formed at 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 sides of the inner and outer fixing bars are fixed pins. 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 aspect 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 It is made of cone-shaped cylindrical bodies with 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, 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 area as described above, the formwork dismantling work in the wall, the inner formwork, that is, the euroform is fixed inside the Separate the foam pins from the inner wall of the wall by separating the bar pins.

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 having the outer fixing bar separated therefrom, for example, for construction of an upper wall. It is transported as it is to the upper layer area by a separate transport device and is set again in the area for wall construction on the upper side.

When dismantling the inner and outer formwork as described above, the euroform is located in the interior of the building, but not described above, the ceiling slab is constructed together with the wall in the lower floor, so vertical transportation is not possible in the assembled state due to the set position. Therefore, it is inevitable to separate each of 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.

1 is an exploded perspective view of a conventional form fixing device, Figure 2 is a cross-sectional view of the state of use of the conventional form fixing device, the conventional form fixing device as shown in the drawing is the inner side to fix the inner flow path (F1) A fixing bar 2, an outer fixing bar 4 detachably coupled to the inner fixing bar 2 and fixing an outer gang form F2, and installed on the outer fixing bar 4 and fixing the inner side A connector (6) detachably connecting the bar (2), and support means (8) for detachably supporting the outer fixing bar (4) from the gangform (F2), the support means (8) The fixing plate 22 through which the outer fixing bar 4 penetrates, the fastening member 24 for separably fixing the fixing plate 22 to the gang form F2, and the outer fixing bar on the fixing plate 22. 4) is composed of a lock (26) for connecting in a fixed state.

In this case, the device including the outer fixing bar 4, the connector 6, the fixing plate 22, the fastening member 24, the locking device 26 is called a gangform fixing device.

On the other hand, in the conventional form fixing device in the state in which the worker advanced the outer fixing bar 6 installed to penetrate the fixing plate 22 of the support means 8 fixed to the vertical bar 10 of the gangform (F2) on the outer wall side. Fix the position on the fixing plate 22 with the locking hole 26, and connect the inner fixing bar 2 to the connector 6 formed at the tip of the outer fixing bar 6 which is forward fixed on the inner wall side by screwing the inner fixing bar 2. , The flow path (F1) is installed to be spaced apart from the gang form (F2) to be fixed to the inner fixing bar (2).

When fixed at regular intervals by the inner and outer fixing bars (2, 4), the concrete is poured between the gang form (F2) and the euro form (F1) and cured. After the concrete wall is created, the worker forms the euro form (F1) on the inner wall. Remove the and the outer wall surface to raise the lock (26) and then rotate the outer fixing bar (4) to separate from the inner fixing bar (2) embedded in the concrete wall. When this operation is completed, the gangform (F2) is carried upwards to repeat the above operation continuously.

However, the above-mentioned conventional formwork fixing device, the gangform fixing device (4, 6, 22, 24) for fixing the gangform occurred the following problems.

First, there was a problem in which the gang form fixing device is mounted on the vertical bar 10, which is a reinforcement frame of the gang form (F2), very inconvenient.

That is, the configuration of the parts are many and complicated, due to a lot of airborne a series of processes for mounting the gangform fixing device on the vertical bar 10 was not cumbersome at all.

Second, looking at the fastening member 24 provided to mount the fixed plate 22 to the vertical bar 10, it is configured in such a way as to wrap the outside of the vertical bar 10, which is installed to lift the gangform (F2) Interference with the lifting ring (I) occurred.

That is, the lifting ring (I) is usually installed on the side of the vertical bar (10), due to this, interference with the fastening member 24 surrounding the side of the vertical bar (10) was inevitable.

The present invention has been made to solve the above problems, an object of the present invention is to simplify the number of parts to simplify the mounting on the vertical bar, and to support the close contact plate supporting the inner side of the space between the vertical bar It was intended to provide a gangform fixture that is arranged so that interference with the lifting ring does not occur.

To this end, a gang form constituting the outer wall-side formwork of concrete, a plurality of horizontal bars and vertical bars fixed to the outside of the gang form to support the gang form, and the euro form passing through the gang form to form the inner wall side formwork of the concrete In the gangform fixing device to maintain the spacing, The gangform fixing device is in close contact with the entire surface of the vertical bar, the contact plate formed through holes; Conical nut exposed through the gangform through the gangform exposed to the euroforms A main body bolt comprising a support member for selectively contacting the contact plate to the vertical bar, wherein the support member is installed on the contact plate, the elastic force on each rear of the vertical bar through the space between the vertical bar It is provided with a gangform holding device characterized in that the hanging.

At this time, the support member, the fixing part fixed to the contact plate, an extension part which is gradually extended toward the outside from the fixing part, and the engaging portion bent toward the rear of the vertical bar from the end of the extension portion desirable.

At this time, the width between the extension portion is greater than the width between the vertical bar, it is preferable that the handle portion is further formed at the end of the engaging portion is bent back toward the outside.

In addition, the contact plate interferes with the inner diameter of the through hole and the separation prevention member having a smaller upper and lower width than the outer diameter of the main body bolt is further installed, the separation prevention member is accommodated around the body bolt corresponding to the separation prevention member It is preferable that the circumferential groove is partially formed, and the circumferential surface of the body bolt opens the separation preventing member by the rotation of the body bolt to temporarily release the interference of the through holes.

In addition, the rear end of the main body bolt is formed with a head portion having a larger outer diameter than the outer diameter of the main body bolt, it is preferred that the first washer is installed between the head portion and the contact plate.

At this time, a second washer is installed at the front end of the main body bolt, and a sealing member is installed between the second washer and the gangform, but the second washer is preferably prevented from being pushed by a protrusion formed around the main body bolt. .

According to the gangform fixing device according to the present invention has the following effects.

By simplifying the configuration of the parts, the number of mounting labor is reduced, there is an effect that the installation and disassembly operation of the device is simplified.

In addition, since the support member mounted on the vertical bar is disposed inside the vertical bars, there is an effect that does not interfere with the lifting ring provided on the outer surface of the vertical bar.

Hereinafter, with reference to the accompanying Figures 3 to 6b to explain the gangform fixing device according to a preferred embodiment of the present invention.

Prior to the description, the same components as in the prior art are denoted by the same reference numerals, and detailed description thereof will be omitted.

The gangform fixing device is configured to include the contact plate 100, the main body bolt 200, and the support member 300.

The contact plate 100 serves to support the body bolt 200 together with the support member 300 in the gang form (F2), and is disposed over a pair of vertical bars 10.

At this time, the contact plate 100 is configured to be in close contact with the front of the vertical bar 10, it is preferable that the thin plate of a rectangular shape.

In addition, the contact plate 100 is provided in plurality, it is coupled to be in close contact with each other, it is preferable that a predetermined space is formed therein.

In this case, the adhesion plate 100 includes a first plate 110 in close contact with the vertical bar 10 and a second plate 120 in close contact with the first plate 110.

At this time, the second plate 120 is formed with a groove (120a) protruding from one surface toward the other surface.

The groove 120a is a place for accommodating a separation preventing member to be described later.

In addition, through holes 111 and 121 are formed in the first plate 110 and the second plate 120, and the through holes 111 and 121 communicate with each other.

At this time, the through holes (111, 121) is a place for the body bolt 200 to pass through, is formed in the center of the contact plate 100.

In addition, in the contact plate 100, coupling holes 101 are formed at four positions on both sides of the through holes 111 and 121, respectively.

The coupling hole 101 is intended to be fixed to the contact plate 100 through the fixing part of the separation preventing member to be described later.

Detailed description thereof will be described later.

Meanwhile, a plurality of locking protrusions 102 are formed in the first plate 110, and the locking protrusions 102 pass through the locking holes 122 of the second plate 120 and the first plate 110. The second plate 120 is coupled.

Next, the body bolt 200 is provided for screw coupling with the Sepha Tie bolt (S) exposed through the flow path (F1), the insertion hole formed in the through hole (111, 121) and the gang form (F2) of the contact plate 100 Installed through (G1).

The body bolt 200 is made of a rod shape having a predetermined length, the front end of the body bolt 200 is composed of a cone nut 210 formed with a screw therein, the rear end of the body bolt 200 is a body bolt ( It consists of a head portion 220 having a larger outer diameter than the outer diameter of 200.

At this time, the head 220 is preferably in the form of a hexagon.

When the main body bolt 200 passes through the through holes 111 and 121 of the contact plate 100, the circumferential groove 201 is formed around the main body bolt 200 disposed in the recess 120a of the second plate 120. Is formed.

The circumferential groove 201 is a place for the separation preventing member to be described later, is formed only in a part of the circumference of the body bolt 200.

That is, the two circumferential grooves 201 are formed on the circumference of the body bolt 200 so as to face each other and are symmetrical with each other.

The first washer W1 may be installed between the head 220 of the main body bolt 200 and the second plate 120 of the contact plate 100.

The second washer W2 is further installed at a portion of the circumference of the main body bolt 200 that comes into close contact with the gang form F2.

At this time, the second washer (W2) of the body bolt 200 is provided with a plurality of anti-protrusion projections 202 is formed so that the second washer (W2) is not pushed toward the head portion 220 side.

In addition, a sealing member C is further installed between the second washer W2 and the gangform F2.

The sealing member (C) serves to prevent the concrete from leaking through the insertion hole (G1) formed in the gangform (F2), it is preferably a rubber material.

Next, the supporting member 300 serves to selectively detach the contact plate 100 to the vertical bar 10, it is composed of a pair.

The support member 300 is coupled to both sides around the center of the contact plate 100, respectively, and made of an elastic metal.

In this case, the support member 300 includes a fixing part 310, an extension part 320, and a locking part 330.

The fixing part 310 is a part fixed to the contact plate 100, and is exposed to the outside through the coupling hole 101 of the contact plate 100, and then toward the second plate 120 of the contact plate 100. Is bent.

In this case, the fixing part 310 is fixed by the locking protrusion 102 protruding from the contact plate 100 in a state of being in close contact with the second plate 120.

In addition, the extension part 320 extends to have a predetermined length from the fixing part 310, and is formed to be gradually opened toward the outside direction, and a portion where the fixing part 310 and the extension part 320 meet is shown in FIG. 4. More preferably, it is twisted as shown.

This is to further reinforce the elastic force of the support member 300.

In addition, the locking portion 330 is hooked to the rear of the vertical bar 10 to support the contact plate 100, and is bent toward the outside from the end of the extension portion 320.

At this time, it is preferable that the handle portion 340 is further formed on the locking portion 330.

The handle part 340 facilitates the contraction of the support member 300 by the user, thereby easily providing a detachment of the support member 300.

At this time, the handle portion 340 is formed by re-bending in the vertical direction from the locking portion 330.

On the other hand, the distance between the pair of support members 300 is preferably formed larger than the distance between the vertical bar (10).

This is to maximize the force of the support member 30 that is supported by the vertical bar 10 by maximizing the contraction of the support member 300 when the support member 300 is coupled to the vertical bar 10. .

On the other hand, the separation prevention member 400 is disposed between the first plate 110 and the second plate 120 of the contact plate 100.

The release preventing member 400 serves to prevent the main body bolt 200 from being reversed through the through holes 111 and 121 of the contact plate 100 by an external force against the gangform (F2), the second plate ( 120 is disposed in the groove.

The release preventing member 400 is made of a resilient metal member, as shown in Figure 4, is made of a shape corresponding to the half of the ellipse.

At this time, the upper and lower width (H) of the separation preventing member 400 is formed smaller than the inner diameter of the through holes (111, 121) of the contact plate 100.

Accordingly, the detachment preventing member 400 is disposed in a state of interfering with the upper and lower portions of the through holes 111 and 121 of the contact plate 100.

However, the separation preventing member 400 is a function of opening up and down while having elasticity by the rotation of the main body bolt 200, and thus, the through-holes 111 and 121 of the contact plate 100 is the separation preventing member 400 ) Will not receive instantaneous interference.

Hereinafter, the coupling process of the gangform fixing device made of the above configuration and the installation process for the gangform will be described.

The recess 120a of the second plate 120 accommodates the separation preventing member 400, and couples the second plate 120 and the first plate 110 to each other.

Next, after passing the fixing hole 310 of the support member 300 through the coupling hole 101 of the contact plate 100, respectively, it is bent toward the second plate 120.

At this time, the fixing part 310 is fixed by the locking protrusion 102 of the contact plate 100, the extension portion 320 is in a state that is open toward the outside from the center of the contact plate 100.

Next, the body bolt 200 is coupled to the contact plate 100.

At this time, the cone nut 210, which is the front end of the body bolt 200, is exposed through the through holes 111 and 121 of the contact plate 100, and the head part 220 of the body bolt 200 is exposed to the second plate 120. Interfere with hanging.

In addition, the circumferential groove 201 formed at the circumference of the main body bolt 200 accommodates the separation preventing member 400 disposed in the close contact plate 100, as shown in FIG. 5A.

Thus, the separation prevention member 400 coupled to the main body bolt 200 interferes with the inner circumferential surface of the through hole 121 of the second plate 120, and thus, through the through hole 121 of the second plate 120, the main body bolt ( The departure of 200 does not occur.

That is, since the stepped portion formed by the circumferential groove 201 interferes with the release preventing member 400, even if an external force occurs in the gangform fixing device, the detachment of the main body bolt 200 from the contact plate 100 does not occur. It will not be.

On the other hand, the first washer (W1) is coupled between the second plate 120 and the head portion 220 of the contact plate 100, the second washer (W2) and the sealing member (C) in the cone 210 region. ) Is installed.

As a result, the coupling of the gangform fixing device is completed, and a process of installing the completed gangform fixing device on the formwork including the gangform and the euroform will be described with reference to FIGS. 6A and 6B.

First, the gangform fixing device is coupled to the prepared gangform (F2).

6A illustrates a state before the gangform fixing device is coupled to the gangform F2, and the interval between the pair of supporting members 300 constituting the gangform fixing device is a distance between the vertical bars 10. It can be seen that the larger state.

Thereafter, the user presses the support member 300 while holding the handle 340 of the support member 300 so that the space between the support members 300 is smaller than the space between the vertical bars 10. Shrink.

At this time, since the support member 300 is a material of a metal having an elastic force, it can be understood that when a constant force is applied, the support member 300 contracts without a large force.

On the other hand, after the retracted support member 300 is introduced through the gap between the vertical bar 10, and release the grip portion 340, the support member 300 is opened again by the restoring force, the vertical bar The locking portion 330 is caught on the rear of the 10.

At this time, the contact plate 100 is in close contact with the front of the vertical bar 10, the tip of the body bolt 200, that is, the cone 210 is placed concrete through the insertion hole (G1) of the gang form (F2) Exposed space.

At this time, the sealing member (C) installed in the portion of the cone nut 210 is compressed between the gang form (F2) and the second washer (W2) to seal the insertion hole (G1) of the gang form (F2).

Next, the Sepha Tie bolt S is exposed toward the gang form F2 through the flow path F1 spaced apart from the gang form F2 by a predetermined distance.

At this time, the Sepha Tie bolt (S) is screwed to the cone nut 210 of the main body bolt 200 is fixed, thereby fixing the gang form (F2) and the flow path (F1) is completed the formwork coupling.

After that, the concrete is poured into the space formed between the gang form (F2) and the flow path (F1).

After that, concrete is cured after a certain time, and the gangform (F2) is dismantled from the cured concrete.

At this time, in order to dismantle the gang form (F2) by rotating the body bolt 200 to release the coupling with the Sepha Tie bolt (S).

At this time, referring to Figures 5a and 5b in detail the process of separating the body bolt 200 from the contact plate 100 as follows.

5A is also mentioned above, the separation preventing member 400 is disposed in the circumferential groove 201 of the body bolt 200, the interference through the through holes (111, 121) of the contact plate 100, the body bolt 200 It is in the state to prevent the departure.

Then, when the main body bolt 200 is rotated about half a turn, as shown in Figure 5b, the outer circumferential surface of the main body bolt 200 is not formed, the circumferential groove 201 up and down the departure prevention member 400 Pressurized.

This is because the outer diameter of the body bolt 200 is formed larger than the upper and lower widths H of the separation preventing member 400.

That is, as the separation prevention member 400 opens up and down, the interference of the separation prevention member 400 with respect to the through holes 111 and 121 of the contact plate 100 is released, and the through hole 121 of the contact plate 100 is released. Through the body bolt 200 can be removed.

At this time, the body bolt 200 is not completely removed from the contact plate 100, it means that the separation so that the flow can be separated by a distance enough to be separated from the Sepha tie bolt (S).

Then, when the coupling of the main body bolt 200 from the Sepha Tie bolt (S), the gangform (F2) is free to transport, it is transported to the upper layer by a separate transport device such a series of processes again Is performed.

1 is an exploded perspective view showing the fixing to the conventional formwork

2 is a side cross-sectional view of the combined view of FIG.

Figure 3 is a perspective view showing a gangform fixing device according to a preferred embodiment of the present invention

4 is an exploded perspective view of FIG.

5a and 5b is a cross-sectional view showing before and after the separation prevention member is opened by the rotation of the body bolt.

6A and 6B are cross-sectional views showing before and after the gangform fixing device is installed according to a preferred embodiment of the present invention.

* Description of Major Symbols in Drawings *

100: contact plate 101: bonding hole

102: engaging projection 110: the first plate

111,121: Through 120: Second Plate

120a: groove 122: jam hole

200: body bolt 201: peripheral groove

202: jungle prevention protrusion 210: cone nut

220: head portion 300: support member

310: fixed part 320: extension part

330: locking portion 340: handle portion

400: separation prevention member C: sealing member

S: Sepha Tie Bolt W1: First Washer

W2: Second washer H: Detachment member upper and lower width

Claims (6)

To maintain a gap between the gang forms constituting the outer wall formwork of concrete, a plurality of horizontal bars and vertical bars fixed to the outside of the gang forms to support the gang forms, and the flow paths forming the inner wall side forms of concrete through the gang forms. In gangform fixtures, The gangform fixing device, A close contact plate that is in close contact with the front of the vertical bar, the through-hole is formed; A main body bolt including a cone nut passing through the through hole of the contact plate and exposed through the gang form toward the flow path; And a support member for closely contacting the contact plate to the vertical bar, wherein the support member includes: It is installed on the close contact plate, the gangform fixing device characterized in that it is supported by the elastic force on each rear of the vertical bar through the space between the vertical bar. The method of claim 1, The support member, And a fixing part fixed to the contact plate, an extension part which is gradually widened toward the outside from the fixing part, and a locking part bent toward the rear surface of the vertical bar from an end of the extension part. The method of claim 2, The width between the extension portion is larger than the width between the vertical bar, the gangform fixing device, characterized in that the end of the engaging portion is further formed a handle portion bent outwards. The method according to any one of claims 1 to 3, The contact plate interferes with the inner diameter of the through hole and is further provided with a departure preventing member having a smaller upper and lower width than the outer diameter of the main body bolt, and a circumference of the main body bolt corresponding to the leaving preventing member to accommodate the leaving preventing member Some grooves are formed, Gang body fixing device characterized in that the outer peripheral surface of the body bolt by the rotation of the body bolt to open the separation prevention member up and down to temporarily release the interference of the through-holes. The method according to any one of claims 1 to 3, The rear end of the main body bolt is formed with a head having a larger outer diameter than the outer diameter of the main body bolt, the gangform fixing device, characterized in that the first washer is installed between the head and the contact plate. The method of claim 5, A second washer is installed at the front end of the main body bolt, and a sealing member is installed between the second washer and the gangform, wherein the second washer is prevented from being pushed by the anti-rolling protrusion formed around the main body bolt. Gangform fixture.

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