KR102198890B1 - Width adjust type Concrete mold Jig and System Form include this same and Set up and Removal of Concrete mold - Google Patents

Abstract

The present invention relates to a width-adjustable formwork jig and a method of installing and disassembling a formwork, and an object thereof is to transport a formwork without interference with obstacles in a narrow work space, and to facilitate installation and disassembly.
The width-adjustable formwork jig according to the present invention includes a hinge means 30 connected to one side of the formwork to guide the rotation of the formwork; One or more lifts 10 connected to the formwork; It comprises a lift driving means (20) for reducing the width by increasing or lowering the lift so that the formwork rotates in both directions through the hinge means to set the formwork to a pouring position of concrete or by tilting the formwork at the pouring position.

Description

Width adjust type Concrete mold Jig and System Form include this same and Set up and Removal of Concrete mold}

The present invention relates to a formwork jig for installation, dismantling, and transport of a formwork, and more particularly, a width-adjustable formwork jig capable of transporting formwork without interference from obstacles by reducing the width of the formwork, and a system formwork including the same and installation thereof And how to dismantle.

This part provides background information related to the content of the present application, and is not necessarily prior art.

When constructing a building, in order to form a slab that divides the floor and the floor, a frame is formed so that beams and flows are formed by connecting a plurality of rectangular formwork. After the frame is completed, concrete is poured for curing, and the concrete is cured. After that, a number of formwork is dismantled, and the dismantled formwork is manually transported to the upper layer to form an overall frame to pour concrete. That is, the method of constructing between floors and floors is to arrange the formwork at a certain height from the floor (height determined by the design of the building), and then place a plurality of supporters between the formwork and the floor to support the formwork. In general, after forming the frame of the upper floor by connecting a plurality of formwork horizontally, it is common to pour concrete on the formwork.

The construction technology of a concrete structure using a formwork according to the prior art is a situation where it is very difficult to transport the formwork in consideration of the fact that various obstacles are left in the work space while the volume of the formwork is large. In other words, the formwork is in the form of a plate and requires a wide transport space in the transverse direction when transporting based on the placement location, but the work site is difficult to secure a large space due to the conditions, making the operation of transporting the formwork very cumbersome. There is also a problem with the work of transporting the obstruction to another place, and there is also a problem of stability in which the worker collides with the formwork and is injured during the transport of the formwork.

The patent document (Registration Patent No. 10-0747645, extinct) includes a first formwork panel configured to include a first formwork panel and a first frame bar surrounding an edge of the first formwork board; It is configured to include a second formwork board and a second frame bar surrounding an edge of the second formwork board, wherein the second formwork board forms the same surface as the first formwork board of the first formwork panel, and the second frame bar is a first formwork bar. A second formwork panel disposed side by side so as to contact the first frame bar of the panel; And a hinge mounted while interconnecting the first frame bar of the first formwork panel and the second frame bar of the second formwork panel arranged to be in contact with each other. Consisting of including, wherein the first formwork panel and the second formwork panel are folded or unfolded by the hinge, and when the first formwork panel and the second formwork panel are folded to each other, The second frame bar of the first frame bar and the second formwork panel is provided with a binding means, and is a folding-type formwork panel in which the first and second formwork panels are maintained in a folded state by binding of the binding means, and the second formwork panel The volume can be reduced by folding, but there is a problem in that the existing formwork cannot be used, and the concrete placement surface is uneven through the first and second formwork panels.Therefore, the quality of the structure is also degraded. There is also a manufacturing inconvenience in manufacturing and connecting with a hinge.

Registered Patent No. 10-1073513 Registered Patent No. 10-0747645

The present invention is to solve the above-described problems, and the width that allows easy transport of the formwork without interference from obstacles by reducing the left and right volume of the formwork without changing the structure of the formwork and facilitating the installation and dismantling of the formwork Its purpose is to provide an adjustable formwork jig and a method of installing and dismantling formwork.

The width-adjustable formwork jig according to the present invention includes a hinge means connected to one side of the formwork to guide the rotation of the formwork; One or more lifts connected to the formwork; It characterized in that it comprises a lift driving means for reducing the width by raising or lowering the lift so that the formwork rotates in both directions through the hinge means, thereby setting the formwork to a pouring position of concrete or tilting the formwork at the pouring position.

The width-adjustable formwork jig according to the present invention includes one or more lifts connected to the formwork; It characterized in that it comprises a lift driving means for reducing the width by setting the formwork to the pouring position of the concrete through the lift or by tilting the formwork at the pouring position.

The width-adjustable formwork jig according to the present invention includes a hinge means connected to one side of the formwork to guide the rotation of the formwork; By raising or lowering the height-adjustable support for supporting the formwork at the bottom at a distance from the hinge means, the formwork is rotated under the guidance of the hinge means, thereby setting the concrete to the pouring position or tilting the formwork at the pouring position to increase the width. It characterized in that it comprises a lift driving means to reduce.

The width-adjustable formwork jig according to the present invention includes a hinge means connected to one side of the formwork to guide the rotation of the formwork; The formwork is supported by supporting the formwork at the bottom away from the hinge means, and the formwork is rotated in both directions under the guidance of the hinge means through height adjustment, so that the formwork is set to the pouring position of concrete or the formwork at the pouring position is tilted. It characterized in that it comprises a height-adjustable support to reduce the width.

According to the width-adjustable formwork jig, the system formwork including the same, and the installation and disassembly method of the formwork according to the present invention, the volume of the formwork can be reduced by tilting one side of the formwork, so that the formwork can be transported without interference from obstacles. Since there is no structural change, it is possible to construct a structure with a clean concrete pouring surface, and it can be applied only by installation and lifting of a jig, so it has excellent workability, and it prevents workers from colliding with the formwork and injuries when transporting the formwork. It also has the effect of securing.

In addition, it is possible to freely change the angle of the formwork through the hinge connection structure and the lift configuration of the formwork, so it is possible to construct various angles of slabs and beams.

1 is a perspective view of a width-adjustable formwork jig according to the present invention.
Figure 2 is a front view showing an example in which the width-adjustable formwork jig according to the present invention is assembled to a support.
3 is a view showing that the formwork is set in the pouring position by the width-adjustable formwork jig according to the present invention.
4 is a view showing an example of folding a formwork by a width-adjustable formwork jig according to the present invention.
Figure 5 is another installation example of the lift applied to the width-adjustable formwork jig according to the present invention.
Figure 6 is a view applied to the moving caster to the width-adjustable formwork jig according to the present invention.
7 is a process chart showing a method of installing and dismantling a formwork according to the present invention.
8 is a view showing an example of using a support as a lift as another example of the width-adjustable formwork jig according to the present invention.
9 is a view showing an example in which a safety device is applied to the width-adjustable formwork jig according to the present invention.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary depending on the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout this specification.

As shown in Figs. 1 to 4, the width-adjustable formwork jig 100 according to the present invention is a formwork 1 (preferably, a formwork installed at the ceiling position, and forms such as elevator cores, slabs, beams, etc.) It is composed of a lift 10 connected to the lift 10 and a lift driving means 20 that drives the lift 10 to set the formwork 1 at the pouring position by the lift 10 or reduce the width to a narrower width than the pouring position, Preferably, one side of the formwork (1) is supported by the support (2) in the first row, the other side is raised and set to the pouring position, and in this state, the other side is lowered and inclined to reduce the width. For operation, a hinge means 30 is applied.

In the present invention, the supports 2 in the first row support a relatively high place when the formwork 1 is inclined, and the supports 3 in the second row support a relatively low place.

The lift (10) is fixed to the support (2) in the first row (or the ground is also possible), and the support (2) in the first row is a support base, and the support (3) in the second row is separated from the formwork (1) to support ( 3) Make the formwork 1 incline while securing a free space that can rotate downward, and preferably, raise the formwork 1 to the pouring position through its own elongation and remove the formwork 1 through contraction. Tilt.

When the detailed configuration of the lift 10 is described, it is composed of a fixed portion 11 and an elastic portion 12.

The fixing part 11 is fixed to the supports 2 in the first row, and permanent fixing is possible, but a detachable type is preferable for handling and reuse.

The detachable fixing part 11 includes, for example, a clamp 13.

The clamp 13 can be coupled to and separated from the support 2 in the first row, and is shown as a circular clamp in the drawing.

The elastic part 12 is connected to the fixed part 11 so as to be able to expand and contract, and moves away from the fixed part 11 to increase the length (elongation), and conversely moves toward the fixed part 11 to shorten the length (contraction). . That is, the expansion/contraction part 12 sets the formwork 1 to the pouring position through elongation and the dismantling (transport) position through contraction.

The elastic part 12 supports the bottom part of the formwork 1 on the opposite side of the hinge means 30, and the upper end part is possible only by touching the bottom surface of the formwork 1, or a shaft pin on the formwork 1 It is also possible to be connected through. It is also possible to form one or more holes in the formwork 1 for connection of the shaft pins.

The fixed portion 11 and the elastic portion 12 may have a variety of structures (tubular, plate, etc.) capable of stably expanding and contracting the elastic portion 12, but a tubular shape capable of supporting in all directions is preferable, and the fixing portion 11 ) Is made of an inner diameter larger than that of the elastic portion 12 so that the elastic portion 12 is withdrawn (elongated) and inserted (contracted) into the fixed portion 11.

In order to support the bottom surface of the formwork 1 with a large area, a support member 40 having an area larger than that of the elastic part 12 may be coupled to the elastic part 12.

The support 40 is preferably made of a circular outer circumferential surface for reducing friction with the formwork 1. When two width-adjustable formwork jigs 100 are applied to one formwork (1), the support member 40 is coupled to the expansion and contraction parts 12 separated from each other to stably support the formwork 1 without twisting. It is possible.

The support member 40 may be fixed through a circular clamp formed on the elastic part 12.

Only one width-adjustable formwork jig 100 can be installed in one formwork 1 (center of gravity of the formwork 1), and as shown in FIG. 2, two are installed so as to be spaced apart from each other on both sides of the formwork 1 Can be. That is, two or more width-adjustable formwork jigs 100 may be installed in one formwork 1.

The lift 10 (including the lift driving means 20) and the hinge means 30 may be installed in the same quantity, or at the same distance from the hinge means 30 while using one hinge means 30. As a method of installing the two lifts 10, different quantities of the hinge means 30 and the lifts 10 may be used.

The lift driving means 20 is to expand and contract the extension part 12, and the drawing shows a wire winch as an example.

The wire winch-type lift driving means 20 is fixed to the fixed part 11 (permanently fixed and detachable), and the wire 21 is inserted into the fixed part 11 and then the elastic part 12 is preferred. It is fixed to the lower end so that the elastic part 12 is stretched by winding and contracted by unwinding, and of course, the winding and unwinding during stretching may be opposite.

By the lift driving means 20, the formwork 1 is set at the pouring position (Fig. 3) and at the dismantling position (Fig. 4), and this action will be described in detail in the following method.

When the lift driving means 20 is a wire winch, a guide 14 for wiring the wire 21 is formed on the fixing part 11.

Up to now, the lift 10 has been obliquely disposed between the first and second row supports 2 and 3, so that the fixed part 11 of the lift 10 is fixed to the first row support 2 and the elastic part 12 Is shown as being close to the second row support 3, but is not limited thereto, and as shown in FIG. 5, the hinge means 30 is installed on the first row support 2 side and the width-adjustable formwork jig 100 ) May be installed on the second row support 3 in the same vertical direction as the second row support 3.

The lift driving means 20 can be in various ways, such as a cylinder type of fluid (hydraulic oil, air) capable of expanding and contracting the elastic part 12, an electric type of a motor and a rack pinion, or, the operator can change the elastic part 11 It is also possible to raise it by hand and then fix it with a pin.

If the lift (10) only functions to set the formwork (1) to the pouring position and does not function to support the concrete pouring pressure, the lift driving means (20) only has a fixing function that can temporarily fix only the extension part (12). Have.

The hinge means 30 is configured such that the formwork 1 is rotatable. In the present invention, the hinge means 30 and the elastic part 12 are spaced apart from each other so that the hinge means 30 on the opposite side when the elastic part 12 is contracted. ) As the center of rotation to reduce the width by rotating the formwork (1), the hinge means (30) is installed at an appropriate distance from the end of the expansion portion (12).

For example, the hinge means 30 is composed of a fixing bracket 31 fixed to the first row support 2, a hinge part formed on the fixing bracket 31 and hinged to the formwork 1.

The fixing bracket 31 can be of various shapes such as plate shape and tube shape, and is connected to the first row support 2 (pins, bolts and nuts, welding, etc.).

The hinge portion is preferably two hinge brackets (32) erected on the fixing bracket (31), hinge holes (33) formed in each of the hinge brackets (32), hinge holes (33) and coupled to the bottom of the form (1) It is composed of a hinge fastener 34 (a hinge bolt and a nut, etc.) that is fastened to a yoke as a reinforcing material.

The hinge bracket 32 may be interposed between the yokes, as shown in FIG. 3.

The hinge means is not limited to the above configuration and may be a hinge shaft formed on the hinge bracket 32 and rotatably connected to the yoke.

The hinge means 30 has a different rotational trajectory of the formwork 1 according to its position, and specifically, if it is located inwardly spaced from the end of the formwork 1 as shown in FIG. 4, the hinge means 30 ), the right part of the formwork (1) rotates in the direction of the upper concrete structure (4), and the left part of the formwork (1) rotates downward, and if it is located at the edge of the formwork (1), the formwork (1) The whole will rotate toward the bottom.

In the case of FIG. 4, for rotation of the formwork 1, the formwork 1 must be separated from the lower part of the concrete structure 4 to secure a free space for the right side of the formwork 1 to rotate.

The width-adjustable formwork jig 100 is separated from the supports (2,3) after installation of the formwork (1) is completed and used for the installation of other formwork (1), and is installed on the supports (2,3) again after curing of concrete. The formwork 1 can be dismantled (used separately), or can be fixed to the formwork 1 from installation to dismantling of the formwork 1 without being separated from the formwork 1. In the latter case, a moving caster 50 (FIG. 6) may be applied to the fixed portion 11 of the lift 10 for transport of the formwork 1. That is, it also functions as a transport device capable of transporting the formwork 1 through the moving caster 50. The movable caster 50 can be assembled when transporting the formwork 1 and separated after transporting.

The present invention includes the right of the single right of the width-adjustable formwork jig 100, the right of the system formwork consisting of the formwork 1 and the first and second row supports (2,3) and the width-adjustable formwork jig 100.

The method of installing and dismantling the formwork according to the present invention is as follows (see Fig. 7).

(S10) Formwork preparation.

Preparing the formwork (1) according to the pouring of concrete is possible in both the folded state (the state of narrowing the width) and the unfolded state (the state of pouring concrete), and if the working space is sufficient, the formwork (1) It is possible to prepare and transport in an unfolded state, and when the work space is narrow, prepare and transport the formwork 1 in a folded state, and the following will be described with an example of preparing the formwork 1 in a folded state.

The formwork (1), the first and second row supports (2,3), and the width-adjustable formwork jig (100) are assembled and prepared.

At this time, as shown in the drawings, the formwork 1 is preferably folded in order to reduce the width. The folding of the formwork (1) consists of inserting the elastic portion (12) of the lift (10) into the fixing portion (11).

When transport of the formwork (1) is required, a movable caster (50) is installed on the lift (10) and is easily transported using a movable caster (50).

(S20) Formwork installation.

The lift driving means (20) is operated to drive the lift (10), and the formwork (1) is installed in the pouring position by driving the lift (10).

Specifically, when the handle of the wire winch lift driving means 20 is turned, the wire 21 is wound around the drum, and the elastic portion 12 is drawn out from the fixing portion 11 by winding the wire 21 As a result, the expansion and contraction portion 12 rises and the formwork 1 rotates clockwise by means of the hinge means 30 in a clockwise direction.

The formwork 1 is set in a pouring position parallel to the ground, for example in accordance with the concrete pouring surface.

After rotating the formwork (1), the second row support (3) away from the bottom of the formwork (1) is raised to support the bottom of the formwork (1).

If the height of the formwork (1) needs to be adjusted, the height of the formwork (1) is adjusted to the height of the concrete placement through the height adjustment of the first and second row supports (2,3).

The drawing shows the construction of a beam as an example, and the formwork 1 is composed of a vertical part and a horizontal part, and is used as a formwork of a beam by assembling a side plate at a place opposite to the vertical part. The side plate is assembled with the formwork 1 through a separate operation.

(S30) Concrete pouring.

The formwork (1) is supported by the first and second row supports (2,3), and concrete is poured into the formwork (1).

(S40) Lower the formwork.

After the concrete is cured, the side plate is removed, and the formwork 1 is lowered and separated from the concrete structure 4 by adjusting the height of the first and second row supports 2 and 3. This operation is to secure a free space for rotation of the formwork (1).

If free space is not needed, this process is not performed.

(S50) Formwork rotation.

The second row supports (3) are separated from the formwork (1) so that the formwork (1) can rotate, and the formwork (1) is supported by the first row support (2) and the lift (10). .

By operating the lift driving means (20), the elastic part (12) of the lift (10) is contracted, and the form (1) rotates around the hinge means (30) by its own weight as the elastic part (12) is lowered. In this case, the wire 21 does not interfere with the contraction of the stretchable portion 12 while being released.

It is preferable to rotate (lower) the formwork 1 until it is supported by the second row supports 3.

Through the above operation, the folded formwork 1 is in a narrower width than when unfolded.

Therefore, since the width of the formwork 1 is narrowed, the formwork 1 is transported even if there is an obstacle in the work space.

Until now, the second row support 3 and the separate lift 10 have been shown and described, and Fig. 7 shows a modified example according to the present invention.

As shown in Fig. 8, the hinge means 30 is installed on the first row support 2, and thus, rotating the left side of the formwork 1 as shown in the drawing is the same as in the above example. Do.

Unlike the above-described embodiment, the lift driving means 20 is installed on the fixing pipe 3a of the second row support 3, and the height adjustment pipe 3b of the second row support 3 is connected to the lift driving means 20. By connecting (for example, wire 21 in the case of the wire winch-type lift driving means 20), the formwork 1 is rotated in both directions by adjusting the height of the second row support 3.

The second row support (3) is a general height-adjustable support, and a multi-stage height adjustment hole is formed in the height adjustment pipe (3b), and the height is adjusted by connecting and inserting a locking pin to be inserted and withdrawn into the fixing pipe (3a). It will, and the lifting function by the lift driving means 20 is added to this. Therefore, it goes without saying that the height adjustment of the height adjustment pipe 3b by the operator and the lifting of the formwork 1 by the lift driving means 20 are configured to not interfere with each other.

In view of the above embodiments, the present invention can also apply only the hinge means 30 without the lift 10 and the lift driving means 30, and of course, the height of the second row supports 3 should be adjustable. That is, the present invention is a hinge means 30 for rotatably connecting one side of the formwork 1, and a second row support 3 of a height-adjustable type that supports and supports the other side of the formwork 2 at the bottom and adjusts the height. The configured embodiment is also included.

Summarizing the present invention, the first embodiment consisting of the hinge means 30 and the lift 10 and the lift driving means 20, the height adjustment through the hinge means 30 and the lift driving means 20 and its own structure In addition, the second embodiment (without a lift) consisting of a second row support 3 that is height-adjusted by the lift driving means 20, a hinge means 30, and a second row support that is height-adjusted through its own structure ( 3) a third embodiment (no lift and lift driving means), and a fourth embodiment consisting of a lift 10 and lift driving means 20 (no hinge means).

In addition, the present invention is not applied only to the formwork (slab, beam) installed on the ceiling, but can also be applied to the formwork of a wall or column, and at this time, the height of the formwork of the wall and column is tilted in the vertical direction by tilting the upper or lower part, or The right side is tilted in the horizontal direction to reduce the left and right width.

In the present invention, a safety device for protecting an operator may be applied by preventing arbitrary descending through fixing the expansion/contraction part 12.

As shown in Fig. 9, a safety device 60 is applied to the fixing part 11 of the lift 10.

Preferably, the safety device 60 is fixed to the fixing part 11 and inserted into the hole 12a (a multi-stage hole 12a is formed in the stretching part 12) and inserted into the elastic part 12 It is composed of a safety pin 61 and a spring 62 for elastically supporting the safety pin 61 in one direction (the direction in which the hole 12a is fitted).

The safety pin 61 is provided with an inclined part in one direction at the end facing the hole 12a and a spring support part having a larger area on the opposite side to restrict the descending of the elastic part 12 without interfering with the rise of the elastic part 12 . That is, the end of the safety pin 61 is inserted into the hole 12a by the elastic force of the spring 62, restrains the descent of the elastic part 12, and pulls the safety pin 61 to the opposite side of the hole 12a when artificially descending. After removing it from the hole 12a, the elastic part 12 is lowered.

The safety device 60 may further include a housing in the form of a square tube having a safety pin 61 installed and fixed to the fixing part 11.

The safety device 60 is equally applicable to all of the first to fourth embodiments described above.

1: formwork, 2,3: support
4: concrete structure, 10: lift
11: fixed part, 12: elastic part
13: clamp, 14: guide
20: lift driving means, 21: wire
30: hinge means, 40: support member
50: moving caster, 60: safety device
61: safety pin,

Claims (12)

A hinge means connected to one side of the formwork to guide the rotation of the formwork and supported on the support;
At least one lift connected to a portion of the formwork separated from the hinge means to support and support the formwork at a bottom;
And a lift driving means for raising or lowering the lift so that the formwork rotates in both directions through the hinge means,
The lift driving means lowers the lift away from the hinge means so that the formwork rotates through the hinge means and inclines, thereby reducing the width of the formwork jig.
delete delete A hinge means connected to one side of the formwork to guide the rotation of the formwork and connected to a support;
It includes a height-adjustable support for supporting and supporting the formwork at a bottom away from the hinge means, and allowing the formwork to rotate in both directions under the guidance of the hinge means through height adjustment,
The height-adjustable support is a width-adjustable formwork jig, characterized in that the width of the formwork is reduced by inclining the formwork by descending a part away from the hinge means. delete The width-adjustable formwork jig according to claim 1, wherein the lift is a telescopic lift consisting of a fixing part fixed to a support supporting the formwork, and an elastic part connected to the fixing part in a stretchable manner and supporting the formwork. . The width-adjustable form jig according to claim 6, wherein the lift driving means extends or contracts the elastic part. The width-adjustable formwork jig according to claim 6, comprising a safety device for restraining the descent of the expansion and contraction part. The width-adjustable formwork jig according to claim 1, comprising a support member connected to an end of the lift and supporting the formwork. The width-adjustable formwork jig according to claim 6, comprising a movable caster formed on the lift and rolling along the ground. Formwork;
Two or more rows of supports for supporting the formwork;
A system formwork comprising a width-adjustable formwork jig according to claim 1 or 4, wherein the formwork is set at a pouring position of concrete or the width is reduced by tilting the formwork when demolding.
As a method of installing and dismantling a formwork using a width-adjustable formwork jig according to claim 1 or 4,
A first step of preparing the formwork in a reduced width state by tilting the formwork;
A second step of rotating the formwork and installing it at a pouring position of concrete;
And a third step of reducing the width and dismantling of the formwork by demolding and tilting the formwork after curing the concrete poured into the formwork.

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