KR200251827Y1 - Concrete sheeting fixing appliance - Google Patents

Abstract

The present invention relates to a concrete formwork gap retaining bar configured to securely fix the girder erected to form a wall of a concrete building and to easily remove the girder from the cured wall.

According to a feature of the present invention, a conventional concrete formwork consisting of a sephaty to maintain the inner spacing of the mold, a body bolt coupled to the shaft and the sepathai in series, and a close washer and fixing nut supporting the body bolt to the mold. In the fixing member, the Sepha Tie is formed with a pin hole into which a wedge pin is fitted at one end of a plate-shaped support bar having a predetermined length, and a cutting hole for cutting after placing concrete. The body bolt is formed at the other end of the support bar. A gap retaining bar having a connection nut part having a female screw to be fastened therein; The concrete formwork fixing member, which is pushed by the connection nut part of the gap maintaining bar, is closely attached to the mold, and is formed by a locking bushing having a through hole formed therein so that a body bolt fastened to the connection nut part of the gap maintaining bar passes. Is provided.

Description

Concrete formwork fixing member {CONCRETE SHEETING FIXING APPLIANCE}

The present invention relates to a concrete formwork fixing member, and more specifically, to maintain the concrete formwork spacing is configured to secure the girdle erected to form the wall of the concrete building, and to easily remove the girder from the cured wall. It's about bars.

In general, when pouring concrete, most of the panel forms a formwork filled with ready-mixed concrete, such as plywood or iron plate, and the panel forming the formwork is fixed to each other by a concrete formwork fixing member when the ready-mixed concrete is placed in the formwork Prevents formwork plywood from spreading or deforming each other under load.

Conventional configuration of such a concrete formwork fixing member is a rod-shaped with a certain length as shown in Figure 1a pin hole 11 to insert a wedge pin 50 at one end and a cutting hole for cutting after concrete placement A fitting portion 13 having a 12 is formed in a plate shape, and a threaded portion 14 is formed at an outer circumferential end of the other end, and the threaded portion 14 has a semicircular locking operation piece for maintaining a spacing of the mold 2. Sepatie (10) is coupled to the threaded portion 21 is formed on the outer periphery in the shape of a rod having a predetermined length, and one end of the female screw portion (10) is fastened to the threaded portion (14) of the sepa tie (10) A body bolt 20 having a 22 formed thereon, a fixing nut 30 fastened to the threaded portion 21 of the body bolt 20, and a body bolt 20 between the mold 2 and the fixing nut 30. It consists of a close washer 40 fitted to.

In the case of fixing the mold 2 using the conventional concrete formwork fixing member 1, first, the body bolt 20 is coupled to the threaded portion 14 of the Sepha Tie 10 and then one side mold 2 Inserted into the hole of the), while the locking operation piece 15 is fastened to the body bolt 20 in close contact with the washer 40 and the fixing nut 30 in the state caught in the mold (2) body bolt 20 And the Sepha Tie 10 are supported on one side of the mold 2, and then the insertion portion 13 of the Sepa Tie 10 is inserted into the hole of the other side of the mold 2, and then passed through the hole of the mold 2. When the wedge pin 50 is inserted into the pin hole 11 of the fitting portion 13, the fixing of the mold 2 is completed.

However, in the conventional concrete formwork fixing member 1, when the installation operation, the locking operation piece 15 is coupled to the Sepha Tie 10 and the body bolt 20 to be in close contact with the washer 40 and the fixing nut 30. It is difficult to move in the state supported by the one side mold (2), so as to force the Sepa tie (10) to align the fitting portion 13 of the sepa tie (10) to the hole of the other mold (2) There was a problem in that the engaging piece (15) is broken while twisting.

In addition, since the engaging piece 15 for preventing the contraction of the mold 2 is contracted is integrally coupled to the Sepha Tie 10, the engaging piece 15 is embedded in the concrete after the concrete work. Because of the difficulty in recycling, there was a problem in unnecessary waste of resources.

On the other hand, in order to solve the problems as described above, as shown in Figure 1b conventionally, a pin hole 11 that can be inserted into the wedge pin 50, as shown in the known end and a cutting hole 12 for cutting after concrete placement ) Is formed, and on the other end of the body bolt 20 and the threaded portion 14 for coupling and constituting a circular locking cap 16 surrounding the outside of the threaded portion 21, the locking cap 16 The rear end of the same as the diameter of the Sepha Tie 10 is coupled to the Sepha Tie 10 by known means such as screwing, punching or welding, and the tip is inserted into the head of the body bolt 20 while the threaded portion 14 and It provides a concrete formwork fixing member (1) having a large diameter so that the coupling is possible.

However, such a conventional concrete formwork fixing member 1 is also impossible to recycle because the locking cap 16 is embedded in the wall surface in which the concrete is injected and cured into the mold 2, thereby unnecessary waste of expensive resources. There was a problem.

The present invention has been proposed in view of the problems described above, the purpose of which is to firmly fix the girdle erected to form the wall surface of the concrete building, and to easily remove the girdle from the cured wall surface It is to provide a concrete formwork fixing member configured to improve the convenience of operation.

According to a feature of the present invention for achieving the above object, Sepha Tie to maintain the inner spacing of the mold, and the body bolt coupled in series with the Sepha Tie axially, the washer and fixing to support the body bolt to the mold In the conventional concrete formwork fixing member made of a nut, the sephaties are formed in the end of the plate-shaped support bar having a predetermined length is formed with a pin hole to be fitted with a wedge pin and a cutting hole for cutting after concrete placement, A gap retaining bar having a connection nut having a female screw to which the body bolt is fastened; The concrete formwork fixing member, which is pushed by the connection nut part of the gap maintaining bar, is closely attached to the mold, and is formed by a locking bushing having a through hole formed therein so that a body bolt fastened to the connection nut part of the gap maintaining bar passes. Is provided.

1 is a state diagram showing the configuration of a conventional concrete girdle fixing member.

Figure 2 is an exploded perspective view and installation state showing another example of a conventional concrete formwork fixing member.

Figure 3 is an exploded perspective view showing a concrete formwork fixing member according to an embodiment of the present invention.

Figure 4 is an installation state showing the formwork is fixed by the concrete formwork fixing member of the present invention.

5 is an exploded perspective view showing a concrete formwork fixing member according to another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: concrete formwork fixing member

110: Sepha Thai 111: spacing bar

111a: support bar 111b: pin ball

111c: Cutting hole 111d: Female thread

111e: connection nut part 112: locking bushing

112a: through hole 112b: locking portion

112c: engaging portion 112d: locking step

112e: Incision hole 112f: Screw part

120: body bolt 130: fixing nut

140: close contact washer 150: wedge pin

160: connecting means 161: male threaded hole

162: female thread hole 200: mold

210: hole

Hereinafter, the concrete formwork fixing member of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is an exploded perspective view showing a concrete formwork fixing member according to an embodiment of the present invention, Figure 4 is a state diagram showing the state in which the formwork is fixed by the concrete formwork fixing member of the present invention.

As shown, the concrete formwork fixing member 100 according to an embodiment of the present invention is a sephaty 110 to maintain the internal spacing of the formwork 200 forming the formwork, and the sepatai 110 to the mold 200 Body bolts 120 that are coupled successively to the Sepha Tie 110 and axially so as to protrude to the outside of the mold 200, and an adhesive washer 140 to support the body bolt 120 to the mold 200 and In the conventional concrete formwork fixing member 100 made of a fixing nut 130, the Sepha Tie 110 is a pin hole in which the wedge pin 150 is fitted to one end of the plate-shaped support bar 111a having a predetermined length. A connection nut part 111e having a female thread 111d therein, in which a cutting hole 111c is formed for cutting after 111b and concrete pouring and the body bolt 120 is fastened to the other end of the support bar 111a. Is formed gap retaining bar 111 and the connecting nut portion 111 of the gap retaining bar 111. e) is pushed in close contact with the mold 200, and the inside of the engaging bushing 112 is formed with a through-hole (112a) so that the body bolt 120 is fastened to the connection nut portion (111e) of the gap maintaining bar 111 It is composed of separate.

The gap maintaining bar 111 is formed to be separately formed by the support bar 111a and the connection nut part 111e to be integrally coupled to the connection means 160, and in some cases, the support bar as shown in FIG. The other end of the 111a is bent in a cylindrical shape by press working to form a connection nut 111e, and an internal thread 111d is formed by tapping inside the bent connection nut 111e. Can be.

The locking bushing 112 is integrally formed with a locking portion 112b that is caught by the mold 200 and a coupling portion 112c that is inserted into and fixed to the hole 210 of the mold 200 and is integrally connected to the locking portion 112b. And the through hole 112a penetrates the inside of the coupling part 112c, and the engaging step 112d is protruded from the outer periphery of the end of the coupling part 112c, and the coupling part 112c has an axial direction. A plurality of cutting holes 112e are formed so that the locking bushing 112 is elastically inserted into the hole 210 of the mold 200 to be caught and fixed.

In addition, as shown in FIG. 5, the locking bushing 112 may be coupled to the locking portion 112b caught by the mold 200 and the coupling portion 112c fixedly coupled to the hole 210 of the mold 200. Is integrally formed in series, and the through hole 112a is formed in the engaging portion 112b and the engaging portion 112c, and a threaded portion 112f is formed at the outer circumference of the engaging portion 112c. Can be.

The connecting means 160 is preferably configured to be coupled to each other by the male threaded hole 161 and the female threaded hole 162 are formed in the support bar 111a and the connecting nut portion 111e which are subsequently coupled, In some cases, the support bar 111a and the connection nut part 111e which are successively coupled may be configured to be integrally coupled by welding.

The use of the concrete formwork fixing member 100 of the present invention configured as described above is as follows.

First, the locking bushing 112 is inserted into and fixed to the hole 210 of the mold 200.

Thereafter, the body bolt 120 enters the through-hole 112a of the locking bushing 112, and then the connection nut portion 111e of the spacing bar 111 to the body bolt 120 passed through the through-hole 112a. Tighten.

Then, the fastening washer 140 and the fixing nut 130 are fastened to the body bolt 120 so that the Sepha Tie 110 and the body bolt 120 made of the spacing bar 111 and the locking bushing 112 are formed at one side. Support to the mold (200).

Thereafter, the end of the gap maintaining bar 111 in which the pin hole 111b is formed enters the hole 210 of the other mold 200 and then enters the pin hole 111b of the gap maintaining bar 111 that has passed through the hole 210. When the wedge pin 150 is inserted and fixed, the fixing of the mold 200 into which concrete is injected is completed.

On the other hand, when the concrete formwork fixing member 100 is removed from the wall surface is sufficiently cured and molded after the concrete is injected into the mold 200, draining pin 200 fitted in the pin hole 111b of the spacing bar 111 ) And then remove the other mold 200 from the wall.

Thereafter, the contact washer 140 and the fixing nut 130 fastened to the body bolt 120 are removed, and the body bolt 120 fastened to the connection nut part 111e of the spacing bar 111 is released. Next, when the other mold 200 is removed from the wall, the work of removing the concrete formwork fixing member 100 from the wall is completed.

At this time, the locking bushing 112, which is one of the components of the Sepha Tie 110, is fixedly coupled to the mold 200 so as to remove the mold 200 from the wall and simultaneously remove the mold 200 from the wall to be recycled. do.

As described above, the concrete formwork fixing member of the present invention is separated from the cured concrete wall surface because it is composed of a gap retaining bar in which the sepatie is injected into the mold and embedded in the cured concrete wall, and a locking bushing fixedly coupled to the mold. When removing the mold, the locking bushing, which is one of the components of the Sepha Tie, is simultaneously removed from the concrete wall, thereby preventing the waste of valuable resources by recycling the locking bushing.

In addition, when the mold is removed from the cured concrete wall, the locking bushings are removed from the concrete wall at the same time, so that the work process of finally removing the locking bushing separately during the process of removing the concrete formwork fixing member from the mold can be omitted. In this way, the efficiency of the work can be improved.

Claims (7)

Sepha Tie 110 to maintain the internal spacing of the mold 200, the body bolt 120 and axially coupled to the Sepha Tie 110 and the body bolt 120 to support the mold 200 In the conventional concrete formwork fixing member 100 consisting of a close washer 140 and a fixing nut 130, The Sepha Tie 110 has a pin hole 111b into which a wedge pin 150 is fitted at one end of a plate-shaped support bar 111a having a predetermined length, and a cutting hole 111c for cutting after concrete placement. The other end of the support bar (111a) and the spacing bar (111) formed with a connection nut (111e) having a female screw (111d) therein to which the body bolt 120 is fastened; It is pushed by the connection nut part 111e of the spacing bar 111 to be in close contact with the mold 200, and the body bolt 120 which is fastened to the connection nut part 111e of the spacing bar 111 passes therethrough. Concrete formwork fixing member, characterized in that configured to be separated into the engaging bushing 112 formed through holes (112a). The concrete formwork fixing member according to claim 1, wherein the spacing retaining bar (111) is formed to be separately formed by the support bar (111a) and the connecting nut part (111e) to be integrally coupled to the connecting means (160). The method of claim 1, wherein the locking bushing 112 is formed integrally connected with the engaging portion 112b that is caught on the mold 200 and the coupling portion 112c fitted into the hole 210 of the mold 200 to be fixedly coupled. The through hole 112a is formed in the engaging portion 112b and the engaging portion 112c, and the engaging step 112d is formed at the outer circumferential edge of the engaging portion 112c, and the engaging portion is formed. Concrete formwork fixing member, characterized in that formed in the (112c) a plurality of cutting holes (112e) in the axial direction. The method of claim 1, wherein the locking bushing 112 is formed integrally connected with the engaging portion 112b that is caught on the mold 200 and the coupling portion 112c fitted into the hole 210 of the mold 200 to be fixedly coupled. The through-hole 112a is formed in the engaging portion 112b and the coupling portion 112c, and the concrete formwork is formed by forming a screw portion 112f at the outer circumference of the coupling portion 112c. Fixing member. The method of claim 1, wherein the gap retaining bar 111 is the other end of the support bar (111a) is bent in a cylindrical shape by press working to form a connection nut portion (111e), the bent connection nut portion (111e) The concrete formwork fixing member, characterized in that the internal thread (111d) is formed by the tapping process inside. The male screw hole 161 and the female screw hole 162 are respectively formed in the support bar 111a and the connection nut part 111e which are successively coupled so that the connecting means 160 can be separated from each other. Concrete formwork fixing member, characterized in that configured. The method of claim 2, wherein the connecting means 160 is a concrete formwork fixing member, characterized in that the support bar (111a) and the connecting nut portion (111e) to be coupled in series is configured to be integrally coupled by welding.