KR20220142619A - Fixing apparatus for maintaining space of formwork - Google Patents

Abstract

The present invention relates to a fixing device for maintaining an interval between molds. The fixing device for maintaining an interval between molds comprises: a sepa tie (110) inserted into a mold; a mounting part (130) fixed to a frame of an outer mold; and a detachable part (120) provided to couple or decouple the sepa tie (110) and the mounting part (130). The detachable part (120) comprises: a detachable case (121) provided to accommodate a connection portion between a coupling part (111) of the sepa tie (110) and the mounting part (130); a first clamp (122) and a second clamp (125) built into the detachable case (121) to control the coupling part (111) of the sepa tie (110) and formed in a shape of a cone divided into two pieces mutually opposite to each other to be caught in the direction of a front side of the detachable case (121); and a first string (129) built into a rear side of the detachable case (121) and configured to elastically support the first clamp (122) and the second clamp (120) toward the front side. The mounting part (130) includes: a mounting base (133) provided in a plate shape forming a central shaft hole (131) and configured to couple and mount a pair of mounting pieces (132) to the outer mold; and a support shaft part (136) axially coupled to the central shaft hole (131) of the mounting base (133) and fixed to a rear end of the detachable case (121) to be operated integrally with the same. Accordingly, a simpler and more robust detachable structure can be formed.

Description

FIXING APPARATUS FOR MAINTAINING SPACE OF FORMWORK

The present invention relates to a fixing device for maintaining a gap between forms, and more particularly, in a fixing device for coupling to maintain a gap between forms installed for pouring concrete during construction of a building, a simpler and more robust detachable structure is formed. It relates to a fixing device that improves workability and efficiency.

In general, when constructing various concrete structures such as buildings and bridges, the formwork is installed to cure and support the concrete by pouring it.

A formwork is a formwork installed at regular intervals using a cladding board, a brace, a wale, and a tying material, and Euroform, Gangform, and Rform are used depending on the shape, material, and use.

Since high pressure and vibration are applied during the concrete pouring and curing process, the formwork must be assembled so that the structure can be formed into the desired shape by maintaining the shape while firmly supporting the load of the concrete. Separation should be easy.

Therefore, when installing the formwork, a Sepa tie is installed to prevent deformation by maintaining a constant distance between the inner and outer formwork during the concrete pouring and curing process.

Referring to the known technology and schematically looking at the configuration of the conventional sepa ties for formwork, in Korea Utility Model No. 20-0423452, one end of the steel bar has a threaded part fixed to the inner wall formwork, and the other end of the steel bar is pressed by a press. It has a rear fastening surface fixed to the inner wall formwork flattened by compression, has a wedge coupling hole in the center of the rear fastening surface, and constitutes a separator tie for fixing a form having cut grooves on both sides of the rear fastening surface.

Such a separator for formwork is installed and maintained inside the concrete using a separate fixing device, and a separate fixing device is used to facilitate dismantling after installation and curing are completed.

For example, in Korea Utility Model Registration No. 20-0342782, in a device for maintaining a gap between a formwork in which a Euroform to which a gangform is connected is installed oppositely, and a Separtie is inserted through a through groove formed in each of the Euroform and the gangform, The main body bolts are respectively connected to the nuts connected to the sepa ties, and a plurality of recesses are formed in the main body bolts, so that the fasteners to be supported on both sides of the vertical member are respectively fixed thereto, and the fasteners are the slots and the slots into which the main body bolts are inserted. It constitutes a space-keeping device for a formwork in which concrete is poured, which is made of wedges having fixed jaws connected to one side to have a certain inclination.

As another example, in Korea Utility Model No. 20-0430888, in the spacer holder for the form in which the shaft rod is coupled through the shaft hole of the projection formed in the bracket, the support hole formed inside the projection and the shaft rod penetrates is located in the center. The formed support member is screwed to the tip of the shaft rod, and the connector formed in the coupling hole on one side so that the coupling means can be inserted and fixed in the coupling hole formed on the screw thread of the shaft rod, and a plurality of long holes formed at both ends of the bracket. To configure the spacer for the formwork including a hook ring configured integrally with the hook portion and the support portion.

Korea Registered Utility Model No. 20 - 0423452 (06.08.07) Korea Registered Utility Model No. 20 - 0342782 (2004.02.18) Korea Registered Utility Model No. 20 - 0430888 (2006.11.13) Korean Patent Registration No. 10 - 0466870 (Jan. 24, 2005)

The fixing device for maintaining the distance between the formwork to which the prior art is applied as described above is made in the form of a wedge that forms a fastener of a bolt and nut type so as to be connected to a sepatite inserted into concrete.

However, since the wedge-type fixing device for maintaining the gap according to the prior art is made in a fastening method in which a series of fastening structures installed on the formwork are directly rotated and locked or released, the installation and especially the curing of concrete There is a disadvantage that the workability is significantly lower when dismantling after

As another example, the detachable fixing device according to the prior art is made in the form of providing a support member having a shaft rod, combining it with a two-way connector with a separator tie, and detachably installing it on a formwork, which is also a simple screw thread with a separation tie and shaft rod Since it is connected by fastening, the assembly is not good. In particular, the airtightness of the joint is greatly reduced, and moisture or foreign substances are introduced during concrete pouring. The disadvantage is that the usage rate is low.

Accordingly, the present invention was invented to solve the problems of the prior art as described above,

Separating tie 110 inserted into the inner and outer formwork into which the concrete is poured, the mounting part 130 fixed to the frame of the outer formwork, and the sepatie 110 and the mounting part 130 provided to be able to be coupled and separated In the fixing device for maintaining the distance between the molds having a detachable part 120,

The detachable part 120,

A detachable case 121 provided to accommodate the connection portion between the coupling portion 111 of the Sephatie 110 and the mounting portion 130, and

Built in the detachable case 121 to intermittently intermittently the coupling portion 111 of the sepa ties 110, the first provided to be formed in the shape of a cone divided into two opposite to each other so as to be caught in the direction of the line side of the detachable case 121 a clamp 122 and a second clamp 125;

Built in the rear side of the detachable case 121 and includes a first spring 129 provided to elastically support the first clamp 122 and the second clamp 125 in the line side direction,

The mounting part 130,

A mounting base 133 provided in a plate shape to form a central shaft hole 131 and mounted on the formwork by combining a pair of mounting pieces 132 mounted on the outer formwork;

A simpler and more robust detachable structure is formed by including a support shaft portion 136 that is axially coupled to the central shaft hole 131 of the mounting base 133 and fixed to the rear end of the detachable case 121 to operate integrally. Thus, it is possible to achieve the purpose of improving workability and efficiency.

The present invention provides a fixing device for forming a simpler and more robust detachable structure than in the prior art in a fixing device coupled to maintain an interval between forms installed for pouring concrete during construction of a building.

The present invention improves a series of structures that combine the sepatite inserted into the concrete and the mounting and detaching parts to form a more robust and stable coupling structure while being able to be mounted in a one-touch method, and by minimizing the use of parts compared to the prior art. There is an advantage of improving assembling and durability and reducing cost.

In particular, the present invention enables detachment with simple operation when mounting and dismantling a fixing device from a formwork, as well as securing airtightness at the bonding site to prevent sticking due to inflow of moisture or foreign substances during the concrete pouring and curing process. It derives the effect of remarkably improving workability.

1 is a perspective view of a fixing device for maintaining the gap between the formwork according to the present invention.
Figure 2 is a front view of the fixing device for maintaining the gap between the formwork according to the present invention.
3 and 4 is an exploded perspective view of the fixing device for maintaining the distance between the formwork according to the present invention.
Figure 5 is a perspective view and a front view showing details of the first and second clamps of the present invention.
Fig. 6 is a cross-sectional view taken along line AA of Fig. 2;
Fig. 7 is a cross-sectional view taken along line BB of Fig. 2;
8 is a separate operation state diagram of the fixing device for maintaining the gap between the formwork according to the present invention.
Fig. 9 is a cross-sectional view taken along line CC of Fig. 8;

Hereinafter, the configuration and operation according to a preferred embodiment of the fixing device for maintaining the distance between the formwork of the present invention will be described in detail with reference to the accompanying drawings. In the following description, detailed descriptions of parts that can be easily implemented by those skilled in the art may be omitted.

1 is a perspective view of a fixing device for maintaining the gap between the formwork according to the present invention, FIG. 2 is a front view of the fixing device for maintaining the gap between the forms according to the present invention, and FIGS. An exploded perspective view, FIG. 5 is a perspective view and a front view showing details of the first and second clamps of the present invention, FIG. 6 is a cross-sectional view taken along the line A-A of FIG. 2, FIG. 7 is a cross-sectional view taken along the line B-B of FIG. 8 is a state diagram of the separation operation of the fixing device for maintaining the gap between the formwork according to the present invention, and FIG. 9 is a cross-sectional view taken along the line C-C of FIG.

The fixing device for maintaining the spacing of the formwork to which the technology of the present invention is applied can improve workability by forming a simpler and more robust detachable structure in configuring the fixing device for maintaining the spacing of the formwork installed for pouring concrete when constructing a building. Note that it relates to a fixture with

For this purpose, the fixing device for maintaining the formwork gap of the present invention includes a sepa tie 110 inserted into the inner and outer formwork where concrete is poured, a mounting part 130 fixed to the frame of the outer formwork, and a sepatie 110 and a mounting part It is configured to include a detachable part 120 provided so as to be coupled and separated between the 130 and specifically as follows.

The Sepatay 110 is a means for fixing the inner and outer formwork to prevent the gap between the forms from widening in the process of pouring and curing the concrete, and to be embedded in the concrete to support the wall.

The Sepatai 110 forms a body in the shape of a conventional steel bar, and the tip is provided in a flat plate shape to protrude to the outside of the inner formwork, and is provided to be removed after the concrete curing is completed.

A coupling part 111 is provided at the rear end of the sepa tie 110 to be detachably connected to the mounting part 130 via a detachable part 120 to be described later. The coupling portion 111 is configured to form a screw 128 corresponding to the first clamp 122 and the second clamp 125 to be described later.

The detachable part 120 is provided as an intermediate means for making it possible to easily detach while more closely coupling between the sepa tie 110 and the mounting part 130 to be described later, and a detachable case 121 and a first clamp ( 122) and the second clamp 125 is included.

The detachable case 121 is provided to accommodate a connection part between the coupling part 111 of the Sepatay 110 and the mounting part 130 to be described later.

The detachable case 121 has a line and a rear end face through it, and forms an inner space, so that the sepati 110 accommodates the coupling part 111 on the front side, and a first spring 129 and support, which will be described later, on the rear side. The shaft portion 136 is accommodated and provided to be coupled.

The detachable case 121 is configured to have a conical shape that enlarges the rear end compared to the front end so that the first clamp 122 and the second clamp 125, which will be described later, are caught from the ship side.

The first clamp 122 and the second clamp 125 are embedded in the detachable case 121 to intermittently intermittently the coupling portion 111 of the sepa ties 110, but are formed in the shape of two opposing cones. to be engaged in the direction of the line side of the detachable case 121 .

The first clamp 122 and the second clamp 125 form an outer and inner shape of a conical shape divided into two, and each inner peripheral surface is provided so that both divided end surfaces 123 and 126 face each other. Since the first clamp 122 and the second clamp 125 are provided in a conical shape that enlarges the rear side compared to the ship side, even if a traction force is applied to the ship side by the sepatite 110 during the concrete pouring process, the detachable case (121) It is kept inside and acts so that the inner and outer forms do not open.

The first clamp 122 and the second clamp 125 are provided so as to intercept the coupling part 111 of the sepa tie 110 in the inner circumferential surface while being accommodated inside the front side of the detachable case 121 .

In the first clamp 122 and the second clamp 125 , a screw 128 is formed in a continuous spiral direction from the inner peripheral surface of the shortest part of the ship side into which the coupling part 111 of the Sepata tie 110 enters to the inner peripheral surface of the rear side. do.

The detachable part 120 having the first clamp 122 and the second clamp 125 is combined with the sepa ties 110 inserted into the inner and outer molds so as to be in a buried state when concrete is poured and cured. For example, moisture or foreign substances contained in the concrete penetrate through the front side of the detachable case 121, and the first clamp 122 and the second clamp 125 and the coupling part 111 of the sepatite 110. If it is introduced into the gap, it may be fixed in the curing process, thereby causing a problem in that it is difficult to separate the detachable part 120 later.

Accordingly, the first clamp 122 and the second clamp 125 are provided to form a screw 128 from the inner peripheral surface of the shortest end of the ship side to tightly screw the coupling part 111 of the Separtie 110 to the concrete. And configured to block the inflow of moisture.

The first clamp 122 and the second clamp 125 operate so that when the coupling part 111 of the sepa tie 110 enters, the divided cross-sections 123 and 126 are spaced apart by a predetermined distance, the first clamp Screw 128 formed on the inner circumferential surface of the 122 and the second clamp 125 is pitched so as to form a continuous spiral direction in a state in which the first clamp 122 and the second clamp 125 are spaced apart from each other. It will be preferable to form a shift of about 0.5 to 1 degree.

As described above, the first clamp 122 and the second clamp 125 are spaced apart between the respective divided end surfaces 123 and 126 facing each other according to the state of entry of the coupling part 111 of the Sepatay 110 and are tightly screwed together. It is provided to derive a state, so that the first clamp 122 and the second clamp 125 are spaced apart and moved closer to each other more stably while maintaining a continuous spiral direction in a spaced state to derive a strong and excellent assembly property. Each of the divided end surfaces 123 and 126 is provided with an assembly pin 124 and a pin insertion hole 127 .

The assembly pins 124 are formed to have a predetermined length on the divided end surface 123 of the first clamp 122 toward the second clamp 125 and include a plurality.

The first clamp 122 forms divided end surfaces 123 on both sides around the inner circumferential surface, and the assembling pin 124 is provided with a plurality of at least one formed on each of the both side divided end surfaces 123 .

The assembly pin 124 is a first clamp 122 and a second clamp 125 when the coupling portion 111 of the separator ties 110 and the first clamp 122 and the second clamp 125 are screwed together. It is configured to protrude to a length longer than the maximum separation distance therebetween to maintain the inserted state in the pin insertion hole 127 to be described later.

The pin insertion hole 127 is formed at a position corresponding to the assembling pin 124 on the divided end face 126 of the second clamp 125 to have a plurality.

The second clamp 125 also forms divided end surfaces 126 on both sides around the inner circumferential surface, and the pin insertion hole 127 corresponds to the assembling pin 124 in each of the both side divided end surfaces 126 . A plurality is provided to form a position and an inner shape.

The pin insertion hole 127 is configured to sufficiently accommodate the length of the assembling pin 124 by forming a through hole outside the outer circumferential surface at the divided end face 126 of the second clamp 125 .

The assembling pin 124 and the pin insertion hole 127 are aligned or crossed on both sides of the inner circumferential surface in the line and rear direction of the first clamp 122 and the second clamp 125 to be formed It is configured to maintain the axial direction of the first clamp 122 and the second clamp 125 .

The first clamp 122 and the second clamp 125 exclude the possibility that the coupling part 111 of the sepa ties 110 enters and exits and separates or approaches, for example, the posture is changed or the position is deviated. In this case, the screw 128 of the first clamp 122 and the second clamp 125 does not maintain a continuous spiral direction, so that a close coupling state with the Sepatay 110 cannot be derived. cause all sorts of problems.

Accordingly, the plurality of assembling pins 124 and the pin insertion holes 127 are arranged or intersected at positions symmetrical to each other on both side divided end surfaces 123 and 126 of the first clamp 122 and the second clamp 125, respectively. It is configured to keep the axial direction constant by arranging it in the direction.

On the other hand, the rear side of the detachable case 121 is provided with a built-in first spring 129 to elastically support the first clamp 122 and the second clamp 125 in the ship side direction.

The first spring 129 is provided as a tension coil spring to support the first clamp 122 and the second clamp 125 in the direction of the line side of the detachable case 121 to maintain the distance between the molds.

A predetermined support plate (unsigned) is provided between the first spring 129 and the first clamp 122 and the second clamp 125 to maximize the working efficiency of the elastic force.

The mounting unit 130 is mounted on the outer formwork and coupled to the sepa ties 110 via the detachable unit 120 to maintain a gap between the formwork. The mounting unit 130 is provided to be separated from the sepati 110 together with the detachable unit 120 after the concrete is cured, and includes a mounting base 133 and a support shaft unit 136 .

The mounting base 133 is provided in the form of a plate forming the central shaft hole 131 and is provided to be mounted on the mold by combining a pair of mounting pieces 132 mounted on the outer mold.

The mounting piece 132 is provided so as to be elastically fixed to the vertical frame of the formwork by protruding from the side of the mounting base 133 in contact with the outer formwork.

The central shaft hole 131 formed in the center of the mounting base 133 is provided with a support shaft part 136, which will be described later, so as to be able to rotate and move in the axial direction.

The support shaft portion 136 is provided so as to be axially coupled to the central shaft hole 131 of the mounting base 133 and to operate integrally by fixing the rear end of the detachable case 121 .

That is, the front end of the support shaft portion 136 is integrally provided by being fixed to the rear end of the detachable case 121 by welding, etc., and the rear end is provided with a structure such as a hexagonal head, for example, by using a tool. It is configured to enable rotational operation.

The body of the support shaft part 136 is formed in the shape of a cylindrical shaft, and predetermined steps are formed at the front and rear ends in a stepwise manner to form the support structure of the detachable case 121 and the second spring 138 to be described later. be prepared

On the central shaft hole 131 of the front side of the mounting base 133 , a pair of mutually parallel binding pieces 134 are provided so as to be elastically spaced apart from each other at an interval shorter than the outer diameter of the support shaft part 136 .

The binding piece 134 is provided as a pair that crosses on the central shaft hole 131 so that the support shaft part 136 passing through the central shaft hole 131 passes between the binding pieces 134 while the support shaft part ( The binding piece 134 is provided to act elastically on the outer peripheral surface of the 136).

On the outer peripheral surface of the rear side of the support shaft part 136, a pair of fastening grooves 137 recessed at mutually symmetrical positions are formed so that the fastening piece 134 is elastically caught.

The fastening groove 137 is a means for fixing the axial position of the support shaft 136 with the mounting base 133 mounted on the outer mold as a starting point, and the fastening according to the rotational state of the support shaft 136 . At a position coincident with the piece 134 , the fastening piece 134 leads to a state of being caught in the fastening groove 137 , and at a position inconsistent with the fastening piece 134 , the axial position of the support shaft part 136 can be moved It is configured to derive the state.

Between the mounting base 133 and the support shaft portion 136, a second spring 138 is embedded so as to elastically space the support shaft portion 136 from the mounting base 133 in the rearward direction.

The second spring 138 is provided as a tension coil spring as a means for completing curing of the concrete and more easily separating the detachable part 120 and the mounting part 130 from the sepa ties 110 .

The second spring 138 maintains the state in which the support shaft part 136 is drawn into the ship side in a state where the binding piece 134 is caught in the binding groove 137 of the support shaft part 136 and forcibly contracted. In a state in which the binding piece 134 is not caught in the binding groove 137 , the support shaft part 136 is elastically drawn out in the rear direction from the mounting base 133 as a starting point.

On the outer circumferential surface of the rear central shaft hole 131 of the mounting base 133, an accommodating protrusion 135 for accommodating the second spring 138 in a contracted state is integrally formed to shield the second spring 138 from external force. It is configured to prevent malfunction due to action or the like.

Looking at the schematic operating state of the fixing device for maintaining the distance between the molds to which the technology of the present invention is applied having the configuration as described above is as follows. Since the following description is given by way of preferred embodiments of the present invention, the present invention is not limited by the following examples, and it will be natural that various modifications may be provided within the scope of the present invention. .

First, the mounting base 133 of the mounting part 130 is closely attached to one side of the outer formwork, and the mounting piece 132 is fixed to be closely mounted. At this time, the second spring 138 provided between the mounting base 133 and the supporting shaft 136 is contracted and accommodated in the receiving protrusion 135 , and the mounting base 133 is located in the fastening groove 137 of the supporting shaft 136 . ) is mounted in a state in which the support shaft portion 136 is pushed to the ship side of the mounting base 133 in a state in which the binding piece 134 is bound. The detachable part 120 integrally coupled to the front end of the support shaft part 136 is inserted into the inner and outer molds.

By mounting the Sepatai 110 on the inner formwork, the rear end coupling part 111 is inserted into the inner and outer formwork. When the coupling part 111 of the sepatie 110 enters through the side of the detachable case 121 of the detachable part 120 , the first clamp 122 that is elastically supported by the first spring 129 in the side direction. ) and the second clamp 125 retreats to the rear side of the detachable case 121 .

When it rotates while entering the separator tie 110 , the coupling part 111 enters the inner peripheral surfaces of the first clamp 122 and the second clamp 125 between the first clamp 122 and the second clamp 125 . are gradually separated from Since the plurality of assembly pins 124 formed in the first clamp 122 are drawn out in the plurality of pin insertion holes 127 formed in the second clamp 125 to realize a mutually spaced operation, the first clamp 122 And the second clamp 125 is spaced apart while maintaining a constant posture and axial direction, and the screw 128 is aligned in a mutually continuous spiral direction.

At the same time, by the rotation of the coupling portion 111 of the sepatie 110, the first clamp 122 and the second clamp 125 are tightly coupled by screwing from the inner peripheral surface of the ship side to the screw 128.

When the screw coupling of the coupling part 111 of the sepa tie 110 and the first clamp 122 and the second clamp 125 is completed, the first clamp 122 and the second clamp 122 by the elastic force of the first spring 129 are completed. 2 clamp 125 is supported by the line side of the detachable case 121, so the sepatie 110, the detachable case 121, the first clamp 122 and the line side of the second clamp 125 are closely coupled to the moisture It blocks the inflow of foreign substances and acts to maintain a strong bonding state.

When the coupling between the separator tie 110 and the detachable part 120 is completed, the tip of the separator tie 110 is fixed by bonding a wedge to the inner formwork, thereby stably maintaining the gap when pouring and curing concrete between the inner and outer formwork. installed to prevent deformation.

When the curing of the concrete poured into the formwork is completed, the mounting part 130 and the detachable part 120 are separated from the Sepatai 110 and dismantled.

When the support shaft part 136 of the mounting part 130 is rotated, the detachable case 121 of the detachable part 120 integrally coupled to the front end of the support shaft part 136 rotates. Since a predetermined gripper is embedded between the detachable case 121 and the first clamp 122 and the second clamp 125, the detachable case 121 and the first clamp 122 and The second clamp 125 rotates integrally.

As described above, when the first clamp 122 and the second clamp 125 are rotated, the first clamp 122 and the second clamp 125 are separated from the coupling part 111 of the sepa-tie 110 that maintains the screwed state. As the is released, the first spring 129 is contracted and pushed to the rear to release the coupled state. The first clamp 122 and the second clamp 125, which maintained the screw-coupled state with the coupling part 111 in a state of being spaced apart from each other, are separated from the separation tie 110, and the assembly pin 124 is inserted into the pin insertion hole 127. ) and return to the original state while maintaining the posture.

In addition, as the fastening piece 134 is separated from the fastening groove 137 by the rotation of the support shaft part 136 and the second spring 138 is tensioned, the support shaft part 136 elastically from the mounting base 133 As it is withdrawn, the detachable part 120 coupled to the line side of the support shaft part 136 is integrally separated from the sepatie 110 .

After separating the mounting part 130 and the detachable part 120 from the outer formwork, the body of the Sepata tie 110 is maintained embedded in the concrete between the inner and outer formwork, and the Sepatatie 110 fixed from the outside of the inner formwork. ) is removed by striking. The mounting part 130 and the detachable part 120 separated from the separator tie 110 can be reused repeatedly by adding only the separator tie 110 during a later formwork operation.

The fixing device for maintaining the gap between the formwork according to the present invention as described above improves a series of structures for coupling between the sepatti 110 and the mounting part 130 and the detachable part 120 that are inserted into the concrete, thereby making a stronger and more stable coupling. While forming a structure, there is an advantage in that the use of parts is minimized compared to the prior art, thereby improving assembling and durability and reducing costs.

In particular, the present invention is not only possible to attach and detach with a simple operation when mounting and dismantling the fixing device from the formwork, but also secures airtightness on the coupling part 111 to prevent sticking due to inflow of moisture or foreign substances during the concrete pouring and curing process. As it has various effects such as significantly improving workability during dismantling work, it is expected to have great industrial application.

110: Sepata 111: coupling part
120: removable 121: removable case
122: first clamp 123: divided cross section
124: assembly pin 125: second clamp
126: split section 127: pin insertion hole
128: screw 129: first spring
130: mounting portion 131: central shaft hole
132: mounting piece 133: mounting base
134: binding piece 135: receiving protrusion
136: support shaft 137: fastening groove
138: second spring

Claims (5)

Separating tie 110 inserted into the inner and outer formwork into which the concrete is poured, the mounting part 130 fixed to the frame of the outer formwork, and the sepatie 110 and the mounting part 130 provided to be able to be coupled and separated In the fixing device for maintaining the distance between the formwork having a detachable part (120),
The detachable part 120,
A detachable case 121 provided to accommodate a connection portion between the coupling portion 111 of the Sepata tie 110 and the mounting portion 130, and
Built in the detachable case 121 to intermittently intermittently the coupling portion 111 of the sepa ties 110, the first provided to be formed in the shape of a cone divided into two opposite to each other so as to be caught in the direction of the line side of the detachable case 121 a clamp 122 and a second clamp 125;
Built in the rear side of the detachable case 121 and includes a first spring 129 provided to elastically support the first clamp 122 and the second clamp 125 in the line side direction,
The mounting part 130,
A mounting base 133 provided in a plate shape to form a central shaft hole 131 and mounted on the formwork by combining a pair of mounting pieces 132 mounted on the outer formwork;
A fixing device for maintaining the gap between the molds, characterized in that it includes a support shaft portion 136 that is shaft-coupled to the central shaft hole 131 of the mounting base 133 and fixed to the rear end of the detachable case 121 to operate integrally. . The method of claim 1,
In the first clamp 122 and the second clamp 125,
The screw 128 is formed in a mutually continuous spiral direction from the inner peripheral surface of the innermost part of the ship side into which the coupling part 111 of the Sepathie 110 enters, and the coupling part 111 of the Sepathie 110 is screwed. A fixing device for maintaining the gap between the formwork, characterized in that it is configured to block the inflow of moisture while combining. The method of claim 1,
A plurality of assembling pins 124 formed in a predetermined length toward the second clamp 125 are provided on the divided end surface 123 of the first clamp 122,
A plurality of pin insertion holes 127 formed at positions corresponding to the assembling pins 124 are provided on the divided end surfaces 126 of the second clamps 125,
The assembling pin 124 is between the first clamp 122 and the second clamp 125 when the coupling part 111 of the separator ties 110 and the first clamp 122 and the second clamp 125 are screwed together. to form a protrusion with a length longer than the maximum separation distance of
The pin insertion hole 127 is formed by passing through the outer peripheral surface from the divided end face 126 of the second clamp 125,
The assembling pin 124 and the pin insertion hole 127 are aligned or crossed on both sides of the inner peripheral surface in the line and rear direction of the first clamp 122 and the second clamp 125 to be formed. A fixing device for maintaining the gap between the molds, characterized in that configured to maintain the axial direction of the first clamp (122) and the second clamp (125). The method of claim 1,
On the central shaft hole 131 of the ship side of the mounting base 133, a pair of mutually parallel binding pieces 134 are provided to be elastically spaced apart at intervals shorter than the outer diameter of the support shaft part 136,
On the outer circumferential surface of the rear side of the support shaft part 136, a pair of fastening grooves 137 concave at mutually symmetrical positions are formed so that the fastening pieces 134 are elastically caught. retaining fixtures. The method of claim 1,
Between the mounting base 133 and the support shaft portion 136, a second spring 138 is embedded and provided so as to elastically space the support shaft portion 136 from the mounting base 133 in the rearward direction,
On the outer circumferential surface of the rear central shaft hole 131 of the mounting base 133, a receiving protrusion 135 for accommodating the second spring 138 in a contracted state is integrally formed. Device.

Images