KR102854525B1 - Stackable invisible foldable modular unit and construction method thereof - Google Patents

Abstract

The present invention relates to a stackable invisible foldable modular unit and a construction method thereof, and more specifically, to a bottom plate forming a floor, an upper plate forming a ceiling, a middle plate positioned between the bottom plate and the upper plate to form an intermediate layer, a lower wall portion positioned between the bottom plate and the middle plate to form a wall, a lower hinge portion rotatably installed on the bottom plate but positioned inside the corresponding portion so as to be hidden, an upper wall portion positioned between the middle plate and the upper plate to form a wall, and an upper hinge portion rotatably installed on the middle plate but positioned inside the corresponding portion so as to be hidden. According to the present invention as described above, since it is transported in a folded state in the form of a horizontal plate, it can be stably transported to a required site, and since it can be installed quickly and easily, it can improve operational efficiency, and since the hinge portion is designed not to be exposed from the outside, it can provide both aesthetics and a sense of stability.

Description

Stackable invisible foldable modular unit and construction method thereof {STACKABLE INVISIBLE FOLDABLE MODULAR UNIT AND CONSTRUCTION METHOD THEREOF}

The present invention relates to a modular unit, and more particularly, to a stackable invisible foldable modular unit and a construction method thereof, which can be transported in a folded state in a horizontal plate shape, thereby enabling stable transportation to a required site, can be installed quickly and easily, thereby improving operational efficiency, and can provide comfort through a stable finish by designing the hinge portion not to be exposed from the outside.

It can be seen that, in order to use a modular building by stacking multiple modular units (10) vertically and horizontally, the modular unit (10) is manufactured in the form of a box composed of a pillar (11) and a beam (12) using, for example, steel, channel members, etc., and it can be seen that the necessary ceiling equipment, drainage equipment, partitions, etc. are installed in advance at the factory so that it can be constructed as a modular building suitable for the purpose.

However, although the modular unit (10) pre-fabricated in a box shape has the advantage of being pre-fabricated and can be transported and installed, it takes up a lot of space when transported by vehicle, so recently, as shown in the lower part of Fig. 1a, a “flat-pack system” has been introduced to reduce the transport volume when transporting by vehicle, in which assembly parts are transported in a packaged state to replace a structure such as a container, so that they can be simply assembled and installed in sequence on site. However, since the assembly time is several hours, there is a limitation in that the speed is somewhat low.

Figure 1b is an example of a modular unit (20) of an intermediate folding method that can reduce the transport volume during conventional vehicle transport.

First, it can be seen that the modular unit (20) of the intermediate folding method illustrated in the upper part of Fig. 1b is manufactured in the shape of a rectangular box composed of a top plate, a bottom plate, and both side walls, and the both side walls (21) are folded by roughly rotating inward in the middle, so that it can be transported in the form of a horizontal plate and installed on site by erecting the both side walls (21). At this time, it can be seen that the front and rear walls (22) on which windows, etc. are pre-installed are not folded but rotated to finally erect them.

This has the advantage of requiring almost no assembly time on site, but since it is a structure in which both side walls (21) fold in the middle, it is difficult to install windows and entrances required for both side walls (21), and there are structural limitations such as having to be manufactured to have a width greater than the height at least, and since it is a structure that folds inward, there is a problem in that internal reinforcement is required to resist lateral force.

Next, the horizontally expandable modular unit (30) illustrated at the bottom of Fig. 1b is manufactured in the same manner as Fig. 1a in the shape of a rectangular box composed of a top plate, a bottom plate, and both side walls, and since the both side walls (31) can be expanded horizontally from the inside to the outside like a drawer, there is an advantage in that the internal space can be further expanded on site. However, since a step is formed in the expanded both side walls, it can be seen that there are some restrictions on the use of facility piping and indoor space, and since the modular unit (30) cannot be transported in the form of a horizontal plate, there is a limitation in that the volume increases when transported by vehicle.

Figure 1c is an example of a conventional Z-fold type folding container (60).

That is, it can be seen that a Z-folding method is introduced in which both side walls (67) are hinge-connected to a support (65) whose upper and lower surfaces are pivotally connected to the upper and lower plates, rather than in a middle folding method, so that they can be folded while rotating.

In this way, if a separate brace (65) is used, the two side walls (67) can be folded more quickly because they use the middle support point where the brace (65) is connected by a hinge, but there is a limitation in that it may be somewhat unstable because the support rigidity of the brace (65) must be increased.

Figure 1d is another example of a conventional Z-fold type folding container (70).

That is, it is the same as Fig. 1c in that the two side walls are not folded in an intermediate folding manner, but it can be seen that a Z-folding folding method is also introduced in which one side of the two side walls (3,4) is connected to the upper plate (1) or the lower plate (2) by a hinge without using a brace, and the other side is connected to the upper plate (1) and the lower plate (2) by a roller so that the other side of the two side walls (3,4) connected by the roller moves along the upper plate (1) and the lower plate (2) and rotates while being folded.

Accordingly, in the case of conventional folding containers, it can be seen that the Z-folding type folding container, in which both side walls are rotated relative to each other to fold, uses a method of using a brace or a method of using rollers and hinges in parallel.

However, since this is mostly done by lifting or lowering the top plate, damage occurs when the folded side walls come into contact with each other from above and below, causing defects such as warping, making it difficult to install windows, etc., and there is a problem that stability and durability are reduced due to impact generated during the folding process of the side walls.

Republic of Korea Patent Publication No. 10-2020-0066669, Publication Date (June 10, 2020), Invention Title: Folding Container Republic of Korea Patent Publication No. 10-2018-0127661, Publication Date (June 10, 2020), Invention Title: Pop-up Temporary Housing Structure Chinese Utility Model No. 20272826, Publication Date (February 13, 2013), Invention Title: Foldable Non-Separable Container U.S. Patent No. 2016/0251153, published on September 1, 2016, title: New collapsible container

Accordingly, the present invention has been made to solve the above problems, and the purpose of the present invention is to provide a stacked invisible foldable modular unit and a construction method thereof, which comprises a bottom plate forming a floor, an upper plate forming a ceiling, an intermediate plate positioned between the bottom plate and the upper plate to form an intermediate layer, a lower wall portion positioned between the bottom plate and the intermediate plate to form a wall, a lower hinge portion rotatably installed on the bottom plate but positioned inside the corresponding portion so as to be hidden, an upper wall portion positioned between the intermediate plate and the upper plate to form a wall, and an upper hinge portion rotatably installed on the intermediate plate but positioned inside the corresponding portion so as to be hidden, and which can be transported in a folded state in the form of a horizontal plate so as to be stably transported to a required site, and can be installed quickly and easily so as to improve operational efficiency, and which can provide both aesthetics and stability by being designed so that the hinge portion is not exposed from the outside.

The present invention to achieve the above purpose,

A lower plate forming a floor, an upper plate forming a ceiling, an intermediate plate positioned between the lower plate and the upper plate to form an intermediate layer, a lower wall portion positioned between the lower plate and the intermediate plate to form a wall surface, a lower hinge portion rotatably installed on the lower plate but positioned inside the corresponding portion so as to be covered, an upper wall portion positioned between the intermediate plate and the upper plate to form a wall surface, and an upper hinge portion rotatably installed on the intermediate plate but positioned inside the corresponding portion so as to be covered; wherein the intermediate plate is fixed to the upper side of the lower wall portion folded on the upper surface of the lower plate, and the upper plate is fixed to the upper side of the upper wall portion folded on the upper surface of the intermediate plate, and the upper wall portion and the intermediate plate to which the upper plate is fixed are moved to the site, and the lower wall portion is formed by unfolding the lower wall portion to form a lower wall surface, and then the intermediate plate is installed, and the upper plate is separated, the upper wall portion is unfolded to form an upper wall surface, and then the upper plate is installed, and the lower wall portion, A lower intermediate column installed at the center of the rear end of a bottom plate; a first lower wall portion rotatably installed at one end of the bottom plate by the lower hinge portion with respect to the lower intermediate column as a reference, thereby forming a lower side wall and a portion of a lower rear side wall; and a second lower wall portion rotatably installed at the other end of the bottom plate by the lower hinge portion with respect to the lower intermediate column, thereby forming a lower other side wall and a portion of a lower rear side wall; wherein the lower hinge portion includes a first lower hinge portion rotatably connecting the first lower wall portion to one end of the bottom plate, and the first lower hinge portion includes a first lower side wall hinge portion rotatably connecting a lower end of the lower side wall to the bottom plate; and a first lower rear wall hinge portion rotatably connecting one end of the lower rear side wall to a lower end of the lower one side wall.

Preferably, the bottom plate, middle plate, and top plate are formed such that the lengths of the front and rear ends are longer than the lengths of the one end and the other end.

And, the bottom plate is formed with a bottom plate assembly step along the edge where the lower wall part is erected and installed, and bottom plate floor beams are installed on the bottom plate assembly steps at the front and rear ends, the middle plate is formed with a middle plate assembly step along the edge so as to correspond to the bottom plate assembly step, and middle plate floor beams are installed on the middle plate assembly steps at the front and rear ends, a second middle plate assembly step is formed along the upper edge where the upper wall part is erected and installed, and a second middle plate floor beam is installed on the second middle plate assembly steps at the front and rear ends, and the top plate is formed with a top plate assembly step along the edge so as to correspond to the second middle plate assembly step, and top plate floor beams are installed on the top plate assembly steps at the front and rear ends.

delete

And the height of the lower rear wall is formed to be smaller than the height of the lower one side wall and the lower other side wall, so that a ventilation passage is formed between the middle plate and the lower rear wall.

In addition, the lower hinge portion includes a second lower hinge portion that rotatably connects the second lower wall portion to the other end of the bottom plate.

delete

In addition, the first lower side wall hinge part includes: a first lower side wall hinge installation groove formed at an inner end of a front end and an inner end of a rear end of the lower side wall body; a first lower side hinge frame installed in each of the first lower side wall hinge installation grooves; a first lower side hinge groove formed at the center of one end of the bottom plate floor beam; and a first lower side hinge arm having a predetermined length, one end of which is fixed to a lower end of the first lower side hinge frame, and the other end of which is rotatably installed at one end of the bottom plate floor beam so as to be accessible for entering and exiting the first lower side hinge groove.

And the first lower rear wall hinge portion includes a plurality of first lower rear side hinge installation grooves formed on the inner end of one end of the lower rear side wall body adjacent to the first lower rear side hinge frame; and a first lower rear side hinge positioned in each of the first lower rear side hinge installation grooves to rotatably connect the lower rear side wall body to the first lower rear side hinge frame.

In addition, the second lower hinge portion includes a second lower side wall hinge portion that rotatably connects the lower end of the lower side wall body to the base plate; and a second lower rear wall hinge portion that rotatably connects one end of the lower rear side wall body to the lower end of the lower side wall body.

And the second lower side wall hinge part includes a second lower side wall hinge installation groove formed at the inner end of the front end and the inner end of the rear end of the lower side wall body; a second lower side hinge frame installed in each of the second lower side wall hinge installation grooves; a second lower side hinge groove formed at the center of the other end of the bottom plate floor beam; and a second lower side hinge arm having a predetermined length, the other end of which is fixed to the lower end of the second lower side hinge frame, and one end of which is rotatably installed at the other end of the bottom plate floor beam so as to be enterable into the second lower side hinge groove.

In addition, the second lower rear wall hinge portion includes a plurality of second lower rear side hinge installation grooves formed on the inner end of the other end of the lower rear side wall body adjacent to the second lower rear side hinge frame; and a second lower rear side hinge positioned in each of the second lower rear side hinge installation grooves to rotatably connect the lower rear side wall body to the second lower rear side hinge frame.

And the first lower rear hinge and the second lower rear hinge rotate the lower rear wall body in the range of 0 to 90°.

In addition, the intermediate plate being installed is fixed to the intermediate plate floor beam and the corresponding lower hinge frame by bolts.

And when the first lower wall portion and the second lower wall portion are folded to the upper surface of the bottom plate, the lower middle column is placed on the bottom plate between the first lower wall portion and the second lower wall portion, and further includes a lower module fixing portion that fixes one end of the bottom plate floor beam and one end of the middle plate floor beam, and the other end of the bottom plate floor beam and the other end of the middle plate floor beam at a set interval.

In addition, the lower module fixing unit includes a lower module fixing frame having a lower end positioned at an end of the lower plate floor beam and an upper end positioned at an end of the middle plate floor beam; and a lower module fixing bolt that fixes the lower module fixing frame to the lower hinge frame.

In addition, the upper wall part includes: an upper middle column installed at the center of the rear end of the middle plate; a first upper wall part rotatably installed at one end of the middle plate by the upper middle column and the upper hinge part based on the upper middle column to form an upper one side wall and a part of an upper rear side wall; and a second upper wall part rotatably installed at the other end of the middle plate by the upper hinge part based on the upper middle column to form an upper other side wall and a part of an upper rear side wall.

And the height of the upper rear wall is formed to be smaller than the height of the upper one side wall and the upper other side wall, so that a ventilation passage is formed between the upper rear wall and the middle plate.

In addition, the upper hinge part includes a first upper hinge part that rotatably connects the first upper wall part to one end of the middle plate; and a second upper hinge part that rotatably connects the second upper wall part to the other end of the middle plate.

And the first upper hinge part includes a first upper side wall hinge part that rotatably connects the lower end of the upper side wall body to the middle plate; and a first upper rear wall hinge part that rotatably connects one end of the upper rear side wall body to the lower end of the upper side wall body.

In addition, the first upper layer side wall hinge part includes: a first upper layer side wall hinge installation groove formed at an inner end of a front end and an inner end of a rear end of the upper layer side wall body; a first upper layer hinge frame installed in each of the first upper layer side wall hinge installation grooves; a first upper layer hinge groove formed at the center of one end of the middle plate floor beam; and a first upper layer hinge arm having a predetermined length, one end of which is fixed to a lower end of the first upper layer hinge frame, and the other end of which is rotatably installed at one end of the middle plate floor beam so as to be able to enter and exit the first upper layer hinge groove.

And the first upper layer rear wall hinge part includes a plurality of first upper layer rear side hinge installation grooves formed on the inner end of one end of the upper layer rear side wall body adjacent to the first upper layer hinge frame; and a first upper layer rear side hinge positioned in each of the first upper layer rear side hinge installation grooves to rotatably connect the upper layer rear side wall body to the first upper layer hinge frame.

In addition, the second upper hinge part includes a second upper side wall hinge part that rotatably connects the lower end of the upper side wall body to the middle plate; and a second upper rear wall hinge part that rotatably connects one end of the upper rear side wall body to the lower end of the upper side wall body.

And the second upper layer side wall hinge part includes: a second upper layer side wall hinge installation groove formed at the inner end of the front end and the inner end of the rear end of the upper layer other side wall body; a second upper layer hinge frame installed in each of the second upper layer side wall hinge installation grooves; a second upper layer hinge groove formed at the center of the other end of the middle plate floor beam; and a second upper layer hinge arm having a predetermined length, the other end of which is fixed to the lower end of the second upper layer hinge frame, and one end of which is rotatably installed at the other end of the middle plate floor beam so as to be enterable into the second upper layer hinge groove.

In addition, the second upper layer rear wall hinge portion includes a plurality of second upper layer rear side hinge installation grooves formed on the inner end of the other end of the upper layer rear side wall body adjacent to the second upper layer hinge frame; and a second upper layer rear side hinge positioned in each of the second upper layer rear side hinge installation grooves to rotatably connect the upper layer rear side wall body to the second upper layer hinge frame.

And the first upper rear hinge and the second upper rear hinge rotate the upper rear wall body in the range of 0 to 90°.

In addition, the above-mentioned intermediate plate to be installed is fixed to the upper plate floor beam and the corresponding upper hinge frame by bolts.

And when the first upper layer wall part and the second upper layer wall part are folded to the upper surface of the intermediate plate, the upper layer intermediate column is mounted on the intermediate plate between the first upper layer wall part and the second upper layer wall part, and further includes an upper layer module fixing part that fixes one end of the second intermediate plate floor beam and one end of the upper plate floor beam, and the other end of the second intermediate plate floor beam and the other end of the upper plate floor beam at a set interval.

In addition, the upper module fixing unit includes an upper module fixing frame having a lower end positioned at an end of the second intermediate plate floor beam and an upper end positioned at an end of the upper plate floor beam; and an upper module fixing bolt that fixes the upper module fixing frame to the upper hinge frame.

And a method for constructing an invisible foldable modular unit in which a lower intermediate column is installed between a folded first lower wall part and a second lower wall part, and a bottom plate and an intermediate plate are mutually fixed by a lower module fixing part, and an upper intermediate column is installed between a folded first upper wall part and a second upper wall part, and a middle plate and an upper plate are mutually fixed by an upper module fixing part, the method comprising: an upper layer separation step of separating the folded first upper wall part, the second upper wall part, and the intermediate plate to which the upper plate is fixed; a lower layer wall part installation step of erecting the first lower wall part, the second lower wall part, and the lower intermediate column and fixing them to the bottom plate; a lower layer assembly step of fixing the folded first upper wall part, the second upper wall part, and the intermediate plate to which the upper plate is fixed to the erected first lower wall part and the second lower wall part; an upper plate separation step of separating the upper plate; It includes an upper wall installation step of erecting the first upper wall part, the second upper wall part, and the upper middle column and fixing them to the middle plate; and an upper part assembly step of fixing the upper plate to the erected first upper wall part and the second upper wall part.

In addition, the lower wall portion includes a first lower wall portion forming a lower side wall and a portion of a lower rear side wall, a second lower wall portion forming a lower other side wall and a portion of a lower rear side wall, and the lower wall portion installation step includes a first lower assembly step of erecting and fixing the lower one side wall and the lower other side wall on a bottom plate; a second lower assembly step of erecting and fixing the lower middle column on the bottom plate; and a third lower assembly step of unfolding the lower middle column of the first lower wall portion and the lower middle column of the second lower wall portion and fixing them to the lower middle column.

And the upper layer wall part includes a first upper layer wall part forming an upper layer side wall and a part of an upper layer rear side wall, a second upper layer wall part forming an upper layer other side wall and a part of an upper layer rear side wall, and the upper layer wall part installation step includes a first upper layer assembly step of erecting and fixing the upper layer one side wall and the upper layer other side wall on a middle plate; a second upper layer assembly step of erecting and fixing the upper layer middle column on the middle plate; and a third upper layer assembly step of unfolding the upper layer rear side wall of the first upper layer wall part and the upper layer rear side wall of the second upper layer wall part and fixing them to the upper layer middle column.

According to the stackable invisible foldable modular unit and its construction method according to the present invention, since it is transported in a folded state in a horizontal plate shape, it can be transported stably to a required site, and can be installed quickly and easily, thereby improving operational efficiency.

According to the invisible foldable modular unit of the present invention, the volume can be reduced when completely folded, and since the middle plate, which is the ceiling of the lower part, is used as the floor of the upper part, the loading efficiency can be improved during transportation or storage when not in use.

According to the laminated invisible foldable modular unit of the present invention, the hinge portion for rotating each wall portion is designed not to be exposed from the outside, thereby providing aesthetic appeal and stability.

Figure 1a is an example of the installation of a conventional modular unit.
Figure 1b is an example of a modular unit using a conventional intermediate folding method.
Figure 1c is an example of a conventional Z-folder type folding container.
Figure 1d is another example of a conventional Z-fold type folding container.
Figure 2 is an example of a stackable invisible foldable modular unit according to the present invention.
Figure 3 is a front view of the upper plate of the modular unit according to the present invention, separated;
Figure 4 is an example of the installation of the lower wall portion of the modular unit with the intermediate plate separated according to the present invention.
Figure 5 is an example of a lower hinge part of a modular unit according to the present invention.
Figure 6 is an example of the installation of the upper wall portion of a modular unit with a separated top plate according to the present invention.
Figure 7 is an example of an upper hinge part of a modular unit according to the present invention.
Figure 8 is a flow chart of a method for constructing an invisible foldable modular unit according to the present invention.
Figure 9 is a flow chart of each step of installing a layered wall according to the present invention.
Figure 10 is an installation example according to the method for constructing an invisible foldable modular unit according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The detailed description set forth below, together with the accompanying drawings, is intended to explain exemplary embodiments of the present invention and is not intended to represent the only embodiments in which the present invention may be practiced. The following detailed description includes specific details to provide a thorough understanding of the present invention. However, one of ordinary skill in the art will appreciate that the present invention may be practiced without these specific details.

In some cases, to avoid obscuring the concept of the present invention, well-known structures and devices may be omitted or illustrated in block diagram form focusing on the core functions of each structure and device.

Throughout the specification, when a part is said to "comprising" or "including" a certain component, this does not mean that other components are excluded, but rather that other components can be included, unless specifically stated otherwise. In addition, the term "part" described in the specification means a unit that processes at least one function or operation. In addition, the words "a" or "an," "one," "the," and similar related words may be used in the context of describing the present invention (especially in the context of the claims below) to include both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context.

When describing embodiments of the present invention, detailed descriptions of known functions or configurations will be omitted if they are deemed to unnecessarily obscure the gist of the invention. Furthermore, the terms described below are defined in light of their functions in the embodiments of the present invention and may vary depending on the intent or custom of the user or operator. Therefore, their definitions should be based on the overall content of this specification.

Hereinafter, preferred embodiments of the present invention will be described with reference to the attached drawings.

FIG. 2 is an exemplary view of a stacked invisible foldable modular unit according to the present invention, FIG. 3 is a front view of the modular unit with the upper plate separated according to the present invention, FIG. 4 is an exemplary view of the installation of the lower wall part of the modular unit with the middle plate separated according to the present invention, FIG. 5 is an exemplary view of the lower hinge part of the modular unit according to the present invention, FIG. 6 is an exemplary view of the installation of the upper wall part of the modular unit with the upper plate separated according to the present invention, FIG. 7 is an exemplary view of the upper hinge part of the modular unit according to the present invention, FIG. 8 is a flowchart of a method for constructing an invisible foldable modular unit according to the present invention, FIG. 9 is a flowchart of each layer wall part installation step according to the present invention, and FIG. 10 is an exemplary view of the installation of the invisible foldable modular unit according to the present invention.

As shown in the drawing, the stackable invisible foldable modular unit (100) includes a bottom plate (200), a top plate (300), a middle plate (700), a lower wall portion (400), a lower hinge portion (500), an upper wall portion (800), and an upper hinge portion (900).

The bottom plate (200) forms the floor, the top plate (300) forms the ceiling, and the middle plate (700) is positioned between the bottom plate (200) and the top plate (300) to form an intermediate layer. Each plate is a square plate having a certain thickness, and insulation can be built into the inside.

And the lower wall portion (400) is positioned between the bottom plate (200) and the middle plate (700) to form the lower wall surface, and includes lower side walls and a lower rear side wall, and a window can be installed.

The lower hinge part (500) is installed so that the lower wall part (400) can rotate on the base plate (200), but is located inside the corresponding part so as to be covered.

In addition, the upper wall portion (800) is positioned between the middle plate (700) and the upper plate (300) to form the upper wall surface, and includes upper side walls and an upper rear side wall, and a window can be installed.

The upper hinge part (900) is installed so that the upper wall part (800) can rotate on the middle plate (700), but is located inside the corresponding part so as to be covered.

This stackable invisible foldable modular unit (100) is moved to the site in a state where the middle plate (700) is fixed to the upper side of the lower wall part (400) folded on the upper surface of the base plate (200), and the upper plate (300) is fixed to the upper side of the upper wall part (800) folded on the upper surface of the middle plate (700).

Afterwards, the upper wall part (800) and the middle plate (700) to which the upper plate (300) is fixed are separated, the lower wall part (400) is spread out to form the lower wall surface, and then the middle plate (700) is installed.

Of course, the upper wall part (800) and the top plate (300) are fixed to this middle plate (700).

Then, the upper plate (300) is separated, the upper wall body (800) is spread out to form the upper wall surface, and then the upper plate (300) is installed to complete the construction.

For this purpose, the bottom plate (200), middle plate (700), and top plate (300) are formed such that the lengths of the front and rear ends are longer than the lengths of the one end and the other end, as illustrated in FIG. 3.

The bottom plate (200) is formed along the edge where the lower wall section (400) is erected and installed, and a bottom plate assembly step (210) is formed, and a bottom plate floor beam (220) is installed on the bottom plate assembly step (210) at the front and rear ends.

And, if the middle plate (700) corresponds to the bottom plate assembly step (210), the middle plate assembly step (710) is formed along the edge, the middle plate floor beam (720) is installed on the middle plate assembly step (710) at the front and rear ends, and the second middle plate assembly step (730) is formed along the upper edge where the upper wall part (800) is erected and installed, and the second middle plate floor beam (740) is installed on the second middle plate assembly step (730) at the front and rear ends.

The top plate (300) is formed along the edge so that it corresponds to the second intermediate plate assembly step (730), and the top plate floor beam (320) is installed on the top plate assembly step (310) at the front and rear ends.

Here, the middle plate (700) and the upper plate (300) are each installed with a tongue-and-groove joint (330).

The tongue-and-groove joint (330) installed so as to protrude downward on the lower surface of the middle plate (700) is fitted into the upper portion of the lower wall portion (400), and the tongue-and-groove joint (330) installed so as to protrude downward on the lower surface of the upper plate (300) is fitted into the upper portion of the upper wall portion (800).

In one embodiment, this tongue-and-groove joint (330) is formed in a cross shape.

Each tongue joint (330) is fitted into the upper hollow portion of the first lower hinge frame (534), the second lower hinge frame (554), the first upper hinge frame (834), and the second upper hinge frame (854) described below to induce stable assembly.

These cross-shaped tongue-and-groove joints (330) are located on the outer sides of both ends of the middle floor beam (720) and the upper floor beam (320), and when assembled into a building, they are fastened to the protruding portion in a direction perpendicular to the direction in which the bolts are bolted, enabling more stable construction.

And, as shown in Fig. 4, the lower wall portion (400) includes a lower middle column (410), a first lower wall portion (420), and a second lower wall portion (430).

The lower intermediate column (410) is installed in the center of the rear end of the bottom plate (200) and is erected by being bolted to the bottom plate floor beam (220) of the bottom plate (200).

This lower intermediate column (410) is placed between the first lower wall section (420) and the second lower wall section (430) in a folded horizontal plate shape when transported or not in use, and is placed on the bottom plate (200).

In addition, the first lower wall portion (420) is rotatably installed on one end of the bottom plate (200) by the lower hinge portion (500) based on the lower middle column (410) to form a lower side wall portion (422) and a portion of the lower rear side wall portion (424).

The second lower wall portion (430) is rotatably installed at the other end of the bottom plate (200) by the lower hinge portion (500) based on the lower middle column (410) to form a lower other side wall portion (432) and a portion of the lower rear side wall portion (434).

The unfolded first lower wall portion (420) and second lower wall portion (430) are bolted and fixed to the lower middle column (410).

Here, the height of the lower rear side wall (424, 434) is formed to be smaller than the height of the lower one side wall (422) and the lower other side wall (432), so that a ventilation passage is formed between it and the upper plate (300).

And the lower hinge part (500) includes a first lower hinge part (510) and a second lower hinge part (520).

The first lower hinge part (510) rotatably connects the first lower wall part (420) to one end of the base plate (200).

Additionally, the second lower hinge portion (520) rotatably connects the second lower wall portion (430) to the other end of the base plate (200).

The first lower hinge part (510) of one embodiment includes a first lower side wall hinge part (530) and a first lower rear wall hinge part (540), as illustrated in FIG. 5.

The first lower side wall hinge (530) rotatably connects the lower part of the lower side wall (422) to the base plate (200).

And the first lower rear wall hinge (540) rotatably connects one end of the lower rear side wall (424) to the lower end of the lower side wall (422).

In other words, the first lower side wall hinge part (530) rotates the lower side wall body (422) in the height direction of the bottom plate (200), and the first lower rear wall hinge part (540) rotates the lower rear side wall body (424) in the width direction of the lower side wall body (422).

For this purpose, the first lower side wall hinge part (530) includes a first lower side wall hinge installation groove (532), a first lower hinge frame (534), a first lower hinge groove (536), and a first lower hinge arm (538).

The first lower side wall hinge installation groove (532) is formed on the inner end of the front end and the inner end of the rear end of the lower side wall (422), respectively.

And the first lower hinge frame (534) is installed in each first lower side wall hinge installation groove (532).

The first lower hinge home (536) is formed in the center of one end of the bottom plate (220).

In addition, the first lower hinge arm (538) has a certain length, one end is fixed to the lower end of the first lower hinge frame (534), and the other end is rotatably installed on one end of the bottom plate (220) so that it can enter and exit the first lower hinge groove (536).

This first lower side wall hinge part (530) can rotate the lower side wall body (422) in the height direction of the bottom plate (200), and the lower part of the erected lower side wall body (422) is supported by the bottom plate assembly step (210) formed at the edge of one end of the bottom plate (200).

And the first lower rear wall hinge part (540) includes a first lower rear side hinge installation groove (542) and a first lower rear side hinge (544).

The first lower rear hinge installation groove (542) is formed on the inner end of one end of the lower rear side wall (424) adjacent to the first lower hinge frame (534), and at least one is formed.

In one embodiment, three are formed, two at the upper end and one at the lower end, based on the middle of one end of the lower rear wall (424).

And the first lower rear hinge (544) is positioned in each first lower rear hinge installation groove (542) to rotatably connect the lower rear side wall (424) to the first lower hinge frame (534).

Accordingly, the lower rear wall (424) can be rotated toward the lower one-side wall (422) or in the opposite direction.

Additionally, the second lower hinge portion (520) includes a second lower side wall hinge portion (550) and a second lower rear wall hinge portion (560).

The second lower side wall hinge (550) rotatably connects the lower part of the lower side wall body (432) to the base plate (200).

And the second lower rear wall hinge (560) rotatably connects one end of the lower rear side wall (434) to the lower end of the lower other side wall (432).

Additionally, the second lower side wall hinge portion (550) includes a second lower side wall hinge installation groove (552), a second lower hinge frame (554), a second lower hinge groove (556), and a second lower hinge arm (558).

The second lower side wall hinge installation groove (552) is formed on the inner end of the front end and the inner end of the rear end of the lower side wall body (432).

And the second lower hinge frame (554) is installed in each second lower side wall hinge installation groove (552).

The second lower hinge home (556) is formed in the center of the other end of the bottom plate (220).

In addition, the second lower hinge arm (558) has a certain length, the other end is fixed to the lower end of the second lower hinge frame (554), and one end is rotatably installed on the other end of the bottom plate floor beam (220) so that it can enter and exit the second lower hinge groove (556).

This second lower side wall hinge part (550) can rotate the lower side wall body (432) in the height direction of the bottom plate (200), and the lower end of the erected lower side wall body (432) is supported by the bottom plate assembly step (210) formed at the edge of the other end of the bottom plate (200).

And the second lower rear wall hinge part (560) includes a second lower rear side hinge installation groove (562) and a second lower rear side hinge (564).

The second lower rear hinge installation groove (562) is formed on the inner end of the other end of the lower rear side wall (434) adjacent to the second lower hinge frame (554), and at least one is formed.

In one embodiment, three are formed, two at the upper end and one at the lower end, based on the middle of one end of the lower rear wall (434).

And the second lower rear hinge (564) is positioned in each second lower rear hinge installation groove (562) to rotatably connect the lower rear side wall (434) to the second lower hinge frame (554).

Accordingly, the lower rear side wall (434) can be rotated toward the lower rear side wall (432) or in the opposite direction.

Here, the first lower rear hinge (544) and the second lower rear hinge (564) rotate the corresponding lower rear side wall (424, 434) in the range of 0 to 90°, and when the corresponding lower rear side wall (424, 434) is unfolded, a lower stopper surface (440) is formed that contacts each other and limits the rotation angle.

This lower stopper surface (440) is formed to be in mutual surface contact with the corner portion of the lower one side wall (422) or the lower other side wall (432) that is in contact with the unfolded lower rear side wall (424, 434).

Here, when the lower side wall (422) and the lower side wall (432) are erected, the lower assembly part (570) is further included so that the first lower hinge frame (534) and the second lower hinge frame (554) are attached to the corresponding end of the bottom plate floor beam (220).

This lower assembly part (570) is installed on both ends of the bottom plate (220) using a magnet, and for this purpose, the first lower hinge frame (534) and the second lower hinge frame (554) are naturally made of metal.

This lower assembly (570) prevents the lower rear side wall (424, 434) from tilting due to the weight of the lower rear side wall (424, 434) because the lower rear side wall (424, 434) is folded over the erected lower side wall (422) and the lower rear side wall (432).

Afterwards, by bolting the first lower hinge frame (534) and the second lower hinge frame (554) to the bottom plate (220), the tilting is prevented before the bolting and the function of inducing easy bolting is also performed.

And the installed middle plate (700) is fixed to the upper plate floor beam (320) and the corresponding lower hinge frame (534, 554) by bolts.

Of course, it is natural that the cross-shaped tongue-and-groove joint (330) of the middle plate (700) is first fitted into the upper hollow portion of the first lower hinge frame (534) and the second lower hinge frame (554) and then bolted.

And when the first lower wall part (420) and the second lower wall part (430) are folded to the upper surface of the bottom plate (200), the lower middle column (410) is placed on the bottom plate (200) between the first lower wall part (420) and the second lower wall part (430).

Additionally, the invisible foldable modular unit (100) further includes a lower module fixing part (600).

This lower module fixing part (600) fixes one end of the bottom plate floor beam (220), one end of the middle plate floor beam (720), and the other end of the bottom plate floor beam (220) and the other end of the middle plate floor beam (720) at regular intervals.

This lower module fixing unit (600) includes a lower module fixing frame and a lower module fixing bolt.

The lower module fixing frame has its lower part positioned at the end of the bottom plate floor beam (220), and its upper part positioned at the end of the middle plate floor beam (720).

And the lower module fixing bolt fixes the lower module fixing frame to the corresponding lower hinge frame (534, 554), so it is natural to detach it.

This allows for safer storage and transport.

And, as shown in Fig. 6, the upper wall portion (800) includes an upper middle column (810), a first upper wall portion (820), and a second upper wall portion (830).

The upper intermediate column (810) is installed in the center of the rear end of the intermediate plate (700) and is erected by being bolted to the second intermediate plate floor beam (740) of the intermediate plate (700).

This upper intermediate column (810) is placed between the first upper wall section (820) and the second upper wall section (830) in a folded horizontal plate shape when transported or not in use, and is placed on the intermediate plate (700).

In addition, the first upper wall portion (820) is rotatably installed on one end of the middle plate (700) by the upper hinge portion (800) based on the upper middle column (810) to form a portion of the upper side wall (822) and the upper rear side wall (824).

The second upper wall portion (830) is rotatably installed on the other end of the middle plate (700) by the upper hinge portion (900) based on the upper middle column (810) to form the upper other side wall portion (832) and a portion of the upper rear side wall portion (834).

The unfolded first upper wall portion (820) and second upper wall portion (830) are bolted and fixed to the upper middle column (810).

Here, the height of the upper rear side wall (824, 834) is formed to be smaller than the height of the upper one side wall (822) and the upper other side wall (832), so that a ventilation passage is formed between it and the upper plate (300).

And the upper hinge part (900) includes a first upper hinge part (910) and a second upper hinge part (920).

The first upper hinge part (910) rotatably connects the first upper wall part (820) to one end of the middle plate (700).

Additionally, the second upper hinge portion (920) rotatably connects the second upper wall portion (830) to the other end of the middle plate (700).

The first upper layer hinge part (910) of one embodiment includes a first upper layer side wall hinge part (930) and a first upper layer rear wall hinge part (940), as illustrated in FIG. 7.

The first upper side wall hinge (930) rotatably connects the lower part of the upper side wall (822) to the middle plate (700).

And the first upper rear wall hinge (940) rotatably connects one end of the upper rear side wall (824) to the lower end of the upper side wall (822).

In other words, the first upper side wall hinge part (930) rotates the upper side wall body (822) in the height direction of the middle plate (700), and the first upper rear wall hinge part (940) rotates the upper rear side wall body (824) in the width direction of the upper side wall body (822).

For this purpose, the first upper layer side wall hinge part (930) includes a first upper layer side wall hinge installation groove (932), a first upper layer hinge frame (934), a first upper layer hinge groove (936), and a first upper layer hinge arm (938).

The first upper side wall hinge installation groove (932) is formed on the inner end of the front end and the inner end of the rear end of the upper side wall (822), respectively.

And the first upper hinge frame (934) is installed in each first upper side wall hinge installation groove (932).

The first upper hinge home (936) is formed in the center of one end of the second intermediate plate floor beam (740).

In addition, the first upper hinge arm (938) has a certain length, one end is fixed to the lower end of the first upper hinge frame (934), and the other end is rotatably installed on one end of the second intermediate plate floor beam (740) so as to be able to enter and exit the first upper hinge groove (936).

This first upper side wall hinge part (930) can rotate the upper side wall body (822) in the height direction of the middle plate (700), and the lower part of the erected upper side wall body (822) is supported by the second middle plate assembly step (730) formed at the edge of one end of the middle plate (700).

And the first upper layer rear wall hinge part (940) includes a first upper layer rear side hinge installation groove (942) and a first upper layer rear side hinge (944).

The first upper layer rear hinge installation groove (942) is formed on the inner end of one end of the upper layer rear side wall (824) adjacent to the first upper layer hinge frame (934), and at least one is formed.

In one embodiment, three are formed, two at the upper end and one at the lower end, based on the middle of one end of the upper rear side wall (824).

And the first upper rear hinge (944) is positioned in each first upper rear hinge installation groove (942) to rotatably connect the upper rear side wall (824) to the first upper hinge frame (934).

Accordingly, the upper rear wall (824) can be rotated toward the upper one-side wall (822) or in the opposite direction.

Additionally, the second upper layer hinge part (920) includes a second upper layer side wall hinge part (950) and a second upper layer rear wall hinge part (960).

The second upper side wall hinge (950) rotatably connects the lower part of the upper side wall body (832) to the middle plate (700).

And the second upper rear wall hinge (960) rotatably connects one end of the upper rear side wall (834) to the lower end of the upper other side wall (832).

Additionally, the second upper layer side wall hinge portion (950) includes a second upper layer side wall hinge installation groove (952), a second upper layer hinge frame (954), a second upper layer hinge groove (956), and a second upper layer hinge arm (958).

The second upper side wall hinge installation groove (952) is formed on the inner end of the front end and the inner end of the rear end of the upper side wall body (832).

And the second upper layer hinge frame (954) is installed in each second upper layer side wall hinge installation groove (952).

The second upper hinge home (956) is formed in the center of the other end of the second intermediate plate floor beam (740).

In addition, the second upper hinge arm (958) has a certain length, the other end is fixed to the lower end of the second upper hinge frame (954), and one end is rotatably installed on the other end of the second intermediate plate floor beam (740) so that it can enter and exit the second upper hinge groove (956).

This second upper side wall hinge part (950) can rotate the upper side wall body (832) in the height direction of the middle plate (700), and the lower part of the erected upper side wall body (832) is supported by the second middle plate assembly step (730) formed at the edge of the other end of the middle plate (700).

And the second upper layer rear wall hinge part (960) includes a second upper layer rear side hinge installation groove (962) and a second upper layer rear side hinge (964).

The second upper layer rear hinge installation groove (962) is formed on the inner end of the other end of the upper layer rear side wall (834) adjacent to the second upper layer hinge frame (954), and at least one is formed.

In one embodiment, three are formed, two at the upper end and one at the lower end, based on the middle of one end of the upper rear side wall (834).

And the second upper layer rear hinge (964) is positioned in each second upper layer rear hinge installation groove (962) to rotatably connect the upper layer rear side wall (834) to the second upper layer hinge frame (954).

Accordingly, the upper rear side wall (834) can be rotated toward the upper rear side wall (832) or in the opposite direction.

Here, the first upper rear hinge (944) and the second upper rear hinge (964) rotate the corresponding upper rear wall body (824, 834) in the range of 0 to 90°, and when the corresponding upper rear wall body (824, 834) is unfolded, an upper stopper surface (840) is formed that contacts each other and limits the rotation angle.

This upper stopper surface (840) is formed to be in mutual surface contact with the corner portion of the upper one side wall (822) or the upper other side wall (832) that is in contact with the unfolded upper rear side wall (824, 834).

Here, when the upper side wall (822) and the upper side wall (832) are erected, the upper assembly part (970) is further included so that the first upper hinge frame (934) and the second upper hinge frame (954) are attached to the corresponding end of the second intermediate plate floor beam (740).

This upper assembly part (970) is installed on both ends of the second intermediate plate floor beam (740) using a magnet, and for this purpose, the first upper hinge frame (934) and the second upper hinge frame (954) are naturally made of metal.

This upper assembly (970) prevents the upper rear side wall (824, 834) from tilting due to the weight of the upper rear side wall (824, 834) because the upper rear side wall (824, 834) is folded over the erected upper side wall (822) and upper rear side wall (832).

Afterwards, by bolting the first upper hinge frame (934) and the second upper hinge frame (954) to the second intermediate plate floor beam (740), the function of preventing tilting before bolting and inducing easy bolting is also performed.

And the installed top plate (300) is fixed to the top plate floor beam (320) and the corresponding upper hinge frame (934, 954) by bolts.

Of course, it is natural that the cross-shaped tongue-and-groove joint (330) of the top plate (300) is first inserted into the upper hollow portion of the first upper hinge frame (934) and the second upper hinge frame (954) and then bolted.

And when the first upper wall part (820) and the second upper wall part (830) are folded to the upper surface of the middle plate (700), the upper middle column (810) is placed on the middle plate (700) between the first upper wall part (820) and the second upper wall part (830).

Additionally, the invisible foldable modular unit (100) further includes an upper module fixing part (880).

This upper module fixing member (880) fixes one end of the second intermediate plate floor beam (740), one end of the intermediate plate floor beam (720), the other end of the second intermediate plate floor beam (740), and the other end of the upper plate floor beam (320) at regular intervals.

This upper module fixing unit (880) includes an upper module fixing frame and an upper module fixing bolt.

The upper module fixing frame has its lower part positioned at the end of the second intermediate plate floor beam (740), and its upper part positioned at the end of the upper plate floor beam (320).

And the upper module fixing bolt fixes the upper module fixing frame to the corresponding upper hinge frame (934, 954), so it is natural to detach it.

This allows for safer storage and transport.

Looking at the construction method of the invisible foldable modular unit (100) as described above, the lower middle column (410) is installed between the folded first lower wall part (420) and the second lower wall part (430), and the bottom plate and the middle plate are mutually fixed by the lower module fixing part (600), and the upper middle column (810) is installed between the folded first upper wall part (820) and the second upper wall part (830), and the middle plate and the upper plate are mutually fixed by the upper module fixing part (880), as shown in FIG. 8, the lower module fixing part separation step (S10), the upper layer separation step (S20), the lower wall part installation step (S30), the lower layer assembly step (S40), the upper plate separation step (S50), the upper layer wall part installation step (S60), and the upper layer Includes assembly step (S70).

The lower module fixing part separation step (S10) separates the lower module fixing part (600) from the bottom plate (200) and the middle plate (700).

And the upper layer separation step (S20) separates the upper layer wall part (800) and the middle plate (700) to which the upper plate (300) is fixed.

The lower wall installation step (S30) erects the first lower wall (420), the second lower wall (430), and the lower middle column (410) and fixes them to the base plate (200).

In addition, the lower layer assembly step (S40) finishes the lower layer by fixing the upper wall part (800) and the middle plate (200) to which the upper plate (300) is fixed to the erected first lower layer wall part (420) and second lower layer wall part (430).

The upper plate separation step (S50) separates the upper module fixing part (880) and then separates the upper plate (300).

And the upper wall installation step (S60) erects the first upper wall (820), the second upper wall (830), and the upper middle column (810) and fixes them to the middle plate (700).

The upper layer assembly step (S70) completes the construction of the building by fixing the top plate (300) to the erected first upper layer wall part (820) and second upper layer wall part (830) to finish the upper layer.

Here, the lower wall installation step (S30) includes a first lower wall assembly step (S31), a second lower wall assembly step (S32), and a third lower wall assembly step (S33), as illustrated in FIG. 9.

The first lower assembly step (S31) is to erect and fix the lower side wall (422) and the lower other side wall (432) on the base plate (200), and the lower one side wall (422) and the lower other side wall (432) are erected and fixed in a folded state with the corresponding lower rear side wall (424, 434).

And in the second lower assembly step (S32), the lower middle column (410) is erected and fixed to the base plate (200).

The third lower layer assembly step (S33) is to spread out the lower rear side wall (424) of the first lower layer wall part (420) and the lower rear side wall (434) of the second lower layer wall part (430) and fix them to the lower layer intermediate column (410), and bolt the lower rear side wall (424) of the first lower layer wall part (420) and the lower rear side wall (434) of the second lower layer wall part (430) to the lower layer intermediate column (410).

And the upper wall installation step (S60) includes the first upper layer assembly step (S61), the second upper layer assembly step (S62), and the third upper layer assembly step (S63), as illustrated in Fig. 7.

The first upper layer assembly step (S61) is to erect and fix the upper layer side wall (822) and the upper layer other side wall (832) on the middle plate (700), and the upper layer one side wall (822) and the upper layer other side wall (832) are erected and fixed in a folded state with the corresponding upper layer rear side wall (824, 834).

And in the second upper layer assembly step (S62), the upper layer intermediate column (810) is erected and fixed to the intermediate plate (700).

The third upper layer assembly step (S63) is to spread out the upper rear side wall (824) of the first upper layer wall part (820) and the upper rear side wall (834) of the second upper layer wall part (830) and fix them to the upper layer middle column (810), and bolt the upper rear side wall (824) of the first upper layer wall part (820) and the upper rear side wall (834) of the second upper layer wall part (930) to the upper layer middle column (810).

Since the construction of a building by the method of constructing such a stacked invisible foldable modular unit (100), and the dismantling and fixing to the initial form of a horizontal plate after use are done in the reverse order of construction, a separate explanation will be omitted.

100: modular unit 200: base plate
210: Bottom plate assembly step 220: Bottom plate floor beam
300: Top plate 310: Top plate assembly step
320: Top floor beam 400: Lower wall section
410: Lower intermediate column 420: First lower wall
430: Second lower wall section 500: Lower hinge section
510: First lower hinge part 520: Second lower hinge part
530: First lower side wall hinge 540: First lower rear wall hinge
550: Second lower side wall hinge 560: Second lower rear wall hinge
600: Lower module fixing part 700: Middle plate
800: Upper wall 810: Upper middle column
820: First upper wall section 830: Second upper wall section
880: Upper module fixing part 900: Upper hinge part
910: First upper hinge part 920: Second upper hinge part
930: First upper layer side wall hinge 940: First upper layer rear wall hinge
950: Second upper layer side wall hinge 960: Second upper layer rear wall hinge

Claims (10)

The base plate (200) forming the floor;
The top plate (300) forming the ceiling;
An intermediate plate (700) positioned between the upper and lower plates to form an intermediate layer;
A lower wall portion (400) positioned between the above-mentioned bottom plate and the middle plate to form a wall surface;
A lower hinge part (500) that is installed so as to be rotatable on the lower plate, but is located inside the part so as to be covered;
The upper wall portion (800) is positioned between the middle plate and the upper plate and forms a wall surface; and
The upper wall portion is installed so as to be rotatable on the middle plate, but includes an upper hinge portion (900) located inside the portion so as to be covered;
The middle plate is fixed to the upper side of the lower wall part folded on the upper surface of the above-mentioned bottom plate, and the upper plate is fixed to the upper side of the upper wall part folded on the upper surface of the above-mentioned middle plate, and the upper wall part and the middle plate to which the upper plate is fixed are separated, the lower wall part is unfolded to form the lower wall surface, and then the middle plate is installed, and the upper plate is separated, the upper wall part is unfolded to form the upper wall surface, and then the upper plate is installed.
The lower wall portion (400) includes a lower middle column (410) installed at the center of the rear end of the lower plate; a first lower wall portion (420) that is rotatably installed at one end of the lower plate by the lower middle column and the lower hinge portion to form a lower side wall and a portion of the lower rear side wall; and a second lower wall portion (430) that is rotatably installed at the other end of the lower plate by the lower hinge portion and the lower middle column and the lower hinge portion to form a lower other side wall and a portion of the lower rear side wall; and the lower hinge portion (500) includes a first lower hinge portion (510) that rotatably connects the first lower wall portion to one end of the lower plate, and the first lower hinge portion (510) includes a first lower side wall hinge portion (530) that rotatably connects a lower end of the lower side wall to the lower plate. A laminated invisible foldable modular unit comprising a first lower layer rear wall hinge (540) that rotatably connects one end of the lower layer rear wall to the lower end of the lower layer side wall. In the first paragraph,
The above plate (200) is
Along the edge where the above lower wall part (400) is erected and installed, a bottom plate assembly step is formed, and a bottom plate floor beam is installed on the bottom plate assembly step at the front and rear ends.
The above intermediate plate (700) is
In order to correspond to the above-mentioned lower plate assembly step, an intermediate plate assembly step is formed along the edge, an intermediate plate floor beam is installed on the intermediate plate assembly step at the front and rear ends, and a second intermediate plate assembly step is formed along the upper edge where the upper wall part (800) is erected and installed, and a second intermediate plate floor beam is installed on the second intermediate plate assembly step at the front and rear ends.
The above top plate (300) is,
A laminated invisible foldable modular unit characterized in that a top plate assembly step is formed along the edge so as to correspond to the second intermediate plate assembly step, and a top plate floor beam is installed on the top plate assembly steps at the front and rear ends. delete In the first paragraph, the lower hinge part (500)
A laminated invisible foldable modular unit further comprising a second lower hinge portion (520) that rotatably connects the second lower wall portion to the other end of the base plate. delete In the first paragraph,
When the first lower wall portion and the second lower wall portion are folded to the upper surface of the bottom plate, the middle column is placed on the bottom plate between the first lower wall portion and the second lower wall portion,
A laminated invisible foldable modular unit further comprising a lower module fixing member (600) that fixes one end of the lower floor beam, one end of the middle floor beam, the other end of the lower floor beam, and the other end of the middle floor beam at a set interval. In the second paragraph, the upper wall portion (800) is
An upper intermediate column (810) installed in the center of the upper rear end of the above intermediate plate;
A first upper wall part (820) that is rotatably installed at one end of the middle plate by the upper hinge part based on the upper middle column and forms a part of the upper side wall and the upper rear side wall; and
A laminated invisible foldable modular unit including a second upper wall portion (830) that is rotatably installed on the other end of the middle plate by the upper hinge portion based on the upper middle column and forms a part of the upper other side wall and the upper rear side wall. In the seventh paragraph, the upper hinge part (900)
A first upper hinge part (910) that rotatably connects the first upper wall part to one end of the middle plate; and
A laminated invisible foldable modular unit including a second upper hinge portion (920) that rotatably connects the second upper wall portion to the other end of the base plate. In the 8th paragraph, the first upper hinge part (910)
A first upper side wall hinge (930) that rotatably connects the lower part of the upper side wall to the middle plate; and
A laminated invisible foldable modular unit including a first upper layer rear wall hinge (940) that rotatably connects one end of the upper layer rear wall to the lower end of the upper layer side wall. A method for constructing a stacked invisible foldable modular unit of claim 1, wherein a lower intermediate column is installed between the folded first lower wall portion and the second lower wall portion, and the bottom plate and the middle plate are mutually fixed by a lower module fixing member, and an upper intermediate column is installed between the folded first upper wall portion and the second upper wall portion, and the middle plate and the top plate are mutually fixed by an upper module fixing member.
A lower module fixing part separation step (S10) for separating the lower module fixing part from the bottom plate and the middle plate;
An upper layer separation step (S20) for separating the first upper layer wall portion, the second upper layer wall portion, and the middle plate to which the upper plate is fixed;
A lower wall installation step (S30) of erecting the first lower wall, the second lower wall, and the lower intermediate column and fixing them to the base plate;
A lower layer assembly step (S40) of fixing the folded first upper layer wall part, the second upper layer wall part, and the middle plate to which the upper plate is fixed to the erected first lower layer wall part and the second lower layer wall part;
A top plate separation step (S50) for separating the top plate;
An upper wall installation step (S60) of erecting the first upper wall, the second upper wall, and the upper middle column and fixing them to the middle plate; and
A method for constructing a laminated invisible foldable modular unit, comprising an upper assembly step (S70) of fixing the upper plate to the first upper wall portion and the second upper wall portion.