DISASTER-PROOF HOME

The present invention relates to a disaster-proof home, which is used as a home for daily life, but when a disaster such as an earthquake, a tornado, a typhoon, a strong wind, a flood, or a fire occurs, the house is lowered below the ground or is lifted to be spaced apart from the ground, preventing a housing damage and personal injury caused by the disaster and personal injury, and is capable of daily living in a residential space formed in a house and when a sudden disaster occurs, the house is either lowered to an evacuation space formed in the protection wall or floated automatically by water depending on the disaster situation, without the risk of moving to an outside protective facility so that it is effective for the residents to be safe and to prevent property and personal injury caused by the disaster.

TECHNICAL FIELD

The present invention relates to a disaster-proof home, and more specifically, to disaster-proof home, which is used as a house for daily life, but upon a disaster, e.g., earthquake, tornado, typhoon, strong wind, flood, and fire, is moved to underground or moved up to be separated from ground depending on the disaster situation to promote safety of residents and to prevent damage to houses and human injuries caused by disasters.

DISCUSSION OF RELATED ART

Generally, houses are buildings built for people to live in. After the foundation work is done with, etc. concrete, on the building site, the frame and interior and exterior materials are built on it.

Recently, due to a rapid climate change, natural disasters are occurring more frequently, and accordingly, it is increasing need for functional housing that may protect against disasters.

With regard to disaster protection, Japanese Patent Application Publication No. 2013-2199 discloses an air shelter that may be used as a hot water bath box in daily life and may be used as an evacuation shelter in the event of disasters. Further, Japanese Patent Application Publication No. 2013-83136 discloses a disaster prevention cabin which may prevent the collapse of houses.

However, there is a problem that such a protection facility is formed as a separate structure inside or outside a house so that when a disaster occurs, residents should move to the protection facility. Accordingly, it is not only difficult to cope with rapid climate change, but there also is a significant risk of an accident upon movement because the residents must evacuate while a disaster occurs.

Meanwhile, if additional disaster protection facilities are installed inside houses, the entire house may not be protected from disasters. If houses are damaged due to disasters, secondary accidents may be caused.

PRIOR ART DOCUMENT

Patent Document

SUMMARY

The object of the present invention is to provide a house structure with disaster protection function, which is moved to underground upon occurrence of a disaster, e.g., earthquake, tornado, typhoon, strong wind, and fire to protect a house from a disaster to prevent property and personal injuries.

Further, the object of the present invention is to provide a house structure with disaster protection function, which is automatically floated by buoyancy to prevent flooding of houses, and thus to prevent property and personal injuries.

The present invention comprises a house100comprising a roof110formed on an upper portion thereof, an outer wall body120protruding downward from a perimeter of a lower portion of the roof110, a residential space102formed inside the outer wall body102, and a base plate130closing a bottom portion of the outer wall body120, a protection wall200comprising an open upper portion and an evacuation space230therein and embedded in a ground surface10, and a lift300installed on the evacuation space230to support a lower portion of the base plate130, lifting the house100above the ground surface10, or lowering the house100inside the evacuation space230.

Further, the present invention comprises a house100comprising a roof110formed on an upper portion thereof, an outer wall body120protruding downward from a perimeter of a lower portion of the roof110, a residential space102formed inside the outer wall body102, and a base plate130closing a bottom portion of the outer wall body120, a protection wall200comprising an open upper portion and an evacuation space230therein and embedded in a ground surface10, a lift300installed on the evacuation space230to support a lower portion of the base plate130, lifting the house100above the ground surface10, or lowering the house100inside the evacuation space230, a buoyant body400installed inside the base plate130to float the house100on the water by buoyancy, and a multilevel pipe500comprising an upper end thereof fixed to cross each corner of the outer wall body120and a lower end thereof fixed to a bottom surface of the protection wall200so that the multilevel pipe500is stretched by buoyancy coming along a floatation of the house100, fixing a position of the house100.

Furthermore, the house100of the present invention further comprises a water tank140inside the base plate130, the water tank140storing each of drinking water and living water, a septic tank150provided in a bottom surface of the protection wall200to receive and purify water discharged from the water tank150, and a stretching pipe connecting the water tank140and the septic tank150to be unfolded when the house100is lifted above the ground surface10and to be folded when the house100is lowered to inside the protection wall200.

Moreover, the protection wall200comprises a vertical wall210vertically erected and a bottom wall220closing a lower portion of the vertical wall210to be formed in a box shape so that the evacuation space230is provided in the protection wall200, and a vibration reducer240is installed on each vertical wall210to be protruded toward inside the vertical wall210, and thus the vibration reducer240contacts to the outer wall body120of the house100to reduce vibration applied to the house100when vibration occurs under a situation where the house100is positioned in the evacuation space230.

Further, a step hole114is formed around a lower portion of the roof110, and an upper portion of the ground surface10is provided with a protrusion180corresponding to the step hole114so that when the house100is lowered in the evacuation space230, the step hole114is adhered to the protrusion180to prevent water or a foreign substance from entering into an inside of the protection wall200.

Meanwhile, the lift300of the present invention further comprises a plurality of supports130vertically erected to be adjacent to each corner of an inside of the protection wall200, and a lifting frame320installed in each of a plurality of supports130to be capable of lifting and lowering, supporting a lower portion of the base plate130.

Furthermore, the multilevel pipe500further comprises a fixing pillar510fixed to a lower portion of the protection wall510, a pillar pipe520vertically installed on and fixed to the fixing pillar510, a lifting pipe530inserted in the pillar pipe520, of which each end is of open hollow-type to be lifted and lowered, and a fixing pipe540of which an upper end is fixed to an upper portion of the outer wall body120, wherein when the housing100is buoyantly lifted by the water40, the lifting pipe530is unfolded over the ground surface10to prevent the housing from escaping off in a floating state where the house100is spaced apart from the ground surface10.

Moreover, a pipe guide hole122is formed on each corner of an inside of the outer wall body120, an upper end of the fixing piper540is fixed to an upper end of the piper guide hole122, and when the house100is buoyantly lifted by the water40and is spaced apart from the ground surface10, the lifting pipe530is guided by the pipe guide hole122to be unfolded.

The present invention is capable of daily living in a residential space102formed in a house100for daily life, and is effective when a sudden disaster occurs, the house is either lowered to an evacuation space230formed in a protection wall200or floated automatically by water40depending on the disaster situation, without the risk of moving to an outside protective facility so that the residents' safety is secured and property and personal injury caused by the disaster is prevented.

Further, the present invention is effective when a disaster such as an earthquake, a tornado, a typhoon, a strong wind, or a fire occurs, a house100is lowered into an evacuation space230in a protection wall200by a lift300so that only roof110is exposed above a ground surface10to prevent damage of the house100by a strong wind and secure safety of residents.

Further, the present invention is effective when water is flooded due to flood, a buoyant body400built in a base plate130automatically floats on the water by the water40entered into a protection wall200, and thus a lifting pipe530is unfolded over a ground surface10on a pillar pipe520of a lifting pipe530fixed to a bottom wall220of a protection wall200while the house100is floated to be spaced apart from the ground surface10, and a fixing pipe540of which an upper portion is fixed to a pipe guide hole122of an outer wall body120, is unfolded on a lifting pipe to fix position of the house100in a state where the house100is floated on the water40, and thus prevents damage to persons and property due to flooding, and prevents the house100from being swung away by the water.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

Hereinafter, referring to the accompanying drawings, embodiments of the present invention will be described to be easily performed by those of ordinary skill in the art.

FIG. 1is a perspective view illustrating a disaster-proof home according to an embodiment of the present invention, andFIG. 2is a front view illustrating a disaster-proof home according to an embodiment of the present invention.

FIGS. 1 and 2illustrates a state of a typical house100without a disaster, which is exposed above a ground surface10. In other words, a base plate130positioned under the house100is supported by a lifting frame320of a lift300to maintain the entire house100to be exposed above the ground surface10.

The house100is designed to enable people to live inside the house100. A roof110having a gentle curved shape is formed on an upper portion of the house100, and a rectangular outer wall body120protruding downward is formed around a lower portion of the roof110. A lower portion of the outer wall body120is closed with the base plate130.

The roof110may be formed of a metal such as a steel. Further, a step hole114is formed in a rectangular shape around a lower portion of the roof110. The step hole114is inserted into a protrusion180protruded to correspond to the position of the step hole114in the ground surface10(seeFIG. 7).

The outer wall body120has a rectangular or square cross section, and a residential space102is formed in which a person may live. In daily life, the residents may live in the residential space102. Each H beam is built at each outer corner of the outer wall body120, and thus, the strength of the outer wall body120may be reinforced.

A water tank140is provided in an inner center of the base plate130. A space of the water tank140is partitioned, and thus drinking water or living water is stored therein (seeFIG. 3). A valve is provided under the water tank140to discharge water stored in the water tank140to a septic tank150.

The septic tank150is installed on a bottom wall220of a protection wall200to be described below. The septic tank150is connected to the water tank140through a stretching pipe154, which is wrinkled over its entire length to be expanded and contracted in length. Further, the septic tank150may discharge sewage to the outside through a pipe152. The pipe152is embedded in the ground surface10and connected to the septic tank150. One end of the pipe152is connected to the septic tank150, and the other end is exposed above the ground surface10to be opened and closed with a cap.

Meanwhile, the septic tank150may also be provided with a separate gas discharge pipe for discharging the harmful gas generated therein to the outside.

As shown inFIG. 2, the water tank140and the septic tank150are connected to each other in a state in which the stretching pipe154is unfolded while being exposed above the ground surface10of the house100in daily lives without a disaster.

A drain pump160is installed to be spaced apart from the septic tank150at the bottom wall220of the protection wall200. When inside of the protection wall200is filled with water due to rain or snow, the drain pump160plays a role of discharging the water to the outside through a drain pipe162. The drain pump160is connected to a generator170to receive power and the controller for operating the drain pump160may be located inside the residential space102of the house100. Herein, the drain pipe162is embedded in the ground surface10and connected to the drain pump160. That is, one end of the drain pipe162is connected to the drain pump160and the other end is exposed above the ground surface10.

Meanwhile, the generator170embedded in the ground10is installed beside a vertical wall210of the protection wall200. The generator170is an apparatus capable of producing electricity in an emergency, and may generate electricity by power generation using an engine driven by an internal combustion engine. The generator170is equipped with a rechargeable battery. A battery always maintains a charged state.

The generator170is connected to the house100and the lift300by a connection line172to serve to supply electricity. The connection line172is connected to a system power20to supply commercial power to the house100and the lift300and to supply electricity to the house100and the lift300through the generator170when the commercial power is cut off. Meanwhile, when it is difficult to operate the generator170, electricity may be supplied to the house and the lift300by a battery.

The protrusion180is formed in a rectangular shape protruding from the ground surface10and may be formed of concrete. The protrusion180is coupled with the step hole114formed in a lower portion of the roof110when the house100is descended to an evacuation space230by the300(seeFIG. 7).

The step hole114is coupled with the protrusion180, thereby preventing water or foreign substance from entering the evacuation space230. Further, the roof110may be firmly attached to the ground surface10due to coupling the step hole114and the protrusion180. Although a strong wind is applied to the house100, the influence on the roof110is minimized.

The protection wall200is embedded under the ground surface10in a box shape with an open upper part. The protection wall200has a plurality of vertically erected vertical walls210formed in a rectangular or square shape. A lower end of the vertical wall210is closed with the bottom wall220. Herein, the vertical wall210and the bottom wall220are integrally formed. Further, the evacuation space230having a volume larger than one of the house100is formed inside the protection wall200.

The vertical wall210and the bottom wall220are formed of concrete with a built-in frame, and may be formed of ultra-high-performance concrete. The house100may be lowered into the evacuation space230by the lift300to be described later upon occurrence of a disaster.

The protection wall200divides the house100located in the evacuation space230and the ground surface10to prevent water or foreign matter from flowing into the evacuation space230and to protect the house100located in the evacuation space230from strong winds or earthquakes.

The protection wall200is formed in a rectangular or square shape as viewed from above. A vibration reducer240is equipped on each vertical wall210. The vertical wall210is provided with a fixing hole212for equipping a vibration reducer240, and the vibration reducer240is provided in the fixing hole212. Herein, the fixing hole212is formed to be penetrated at the center of each vertical wall210. The vibration reducer240has a shape in which one side is inserted and constrained to the fixing hole212and the other side is protruded toward the outer wall body120of the house100.

A rectangular support fixing hole250in which a support310of the lift300to be described below may be installed is vertically formed on the vertical wall210. A plurality of support fixing holes250are formed in a number corresponding to the number of the supports310, and the support base fixing hole250is positioned adjacent to each corner of the protection wall200.

The lift300is installed in the evacuation space230of the protection wall200, and thus the housing100may be raised or lowered if necessary and comprises a plurality of supports310respectively inserted vertically into the support fixing holes250formed on the vertical wall210of the protection wall200and a lifting frame320mounted on the support310to move up and down. In a method of fixing the support310to the support fixing hole250, the support310may firmly be fixed to the support fixing hole250by pressfittingly coupling or the support310is erected and then the protection wall200and a support310together may be cured with concrete before the protection wall200is made of concrete.

The support310is inserted in each support fixing hole250in the evacuation space230to be arranged overall in a rectangular shape. A guide hole312is formed in each support310to allow a guide322of a lifting frame320to be inserted in the guide hole312and thus a lifting frame320is vertically reciprocated.

The base plate130of the house100is located above the lifting frame320. The lifting fame320supports the base plate130.

The lift300is connected to the system power20or connected to the generator170through the connection line172to receive power. A driving motor for lifting or lowering the lifting frame320is installed on each support310. The driving motor provided on each support310simultaneously rotates in the forward and reverse directions to lift or lower the housing100while keeping the lining frame320horizontal.

Meanwhile, the lift300is provided with a controller for moving up or down control. A controller is installed inside the housing100.

The housing100is normally placed on the ground10. In this case, the lifting frame320is raised to be positioned in an uppermost end of the support310. When a user recognizes occurrence of a natural disaster, such as an earthquake, strong wind, or tornado, the user operates a controller to lower the house100into the evacuation space230formed in the protection wall200. In this case, the lifting, frame320is lowered toward the bottom wall220of the protection wall200, and the house100is also lowered accordingly. The lifting frame descends to a height that is spaced apart from the septic tank150and the drain pump160installed in the bottom wall220.

When the natural disaster situation is over, the user operates the controller again to raise the lifting frame320to place the house100on the ground surface10.

Meanwhile, the support300is firmly inserted into a support fixing hole250and thus is inserted into the vertical wall210to be fixed therein so that even if the house100is lifted or lowered by the lifting frame320to sustain load.

FIG. 2a front view illustrating a disaster-proof home to an embodiment of the present invention, andFIG. 3is an exploded perspective view rating the house100and a buoyant body400of a disaster-proof home according to an embodiment of the present invention.

As described above, the housing100is formed with the roof110at an upper portion thereof, the outer wall body120at, a lower portion of the roof110, and the base plate130at a lower portion of the outer wall body120.

At least one hatch hole112for installing a hatch190may be formed on the roof110. A hatch190is provided in a hatch hole112to be operable and closable. A hatch190serves as an emergency exit that allows a resident to escape to the outside through the roof110when an emergency occurs.

An inside edge of the outer wall body120is formed with a pipe guide hole122for guiding the movement of a multilevel pipe500to be described below. The pipe guide hole122is a hole crossing an inner edge of the outer wall body120to be formed in a shape corresponding to the multilevel pipe500with a hole crossing the inner edge of the outer wall body120.

An upper end of a fixing pipe540of the multilevel pipe SOO is firmly fixed to an upper end of the pipe guide hole122.

The base plate130has an inner hollow shape and the water tank140is installed at the center of the base plate130. The water tank140is divided so that the space is separated, and thus drinking water and living water may be separately stored. An upper portion of the water tank140is sealed with a water tank cover142.

Further, the buoyant body400is installed in the region excluding the water tank140inside the base plate130. Further, the region excluding the water tank140in the base plate130is partitioned in a lattice-shape by a plurality of partition walls134. Each of the partition walls134allows the base plate130to firmly bear load of the housing100.

When the surrounding of the house100is submerged by the flood, the buoyant body400enables the house100to float above water by buoyancy, and thus serves to prevent damage to property and human life caused by flooding.

The buoyant member400is formed of, e.g., expanded polystyrene (EPS), foamed rubber, and Styrofoam. The buoyant body400is inserted into the base plate130of the house100. Further, the buoyant body400is positioned over the entire area except an area of the water tank140in the base plate130, and the shape thereof is also formed according to it. In other words, the buoyant body400is composed of several pieces corresponding to the lattice shape partitioned by the partition wall134in the base plate130, and each is fixed by constrainedly coupling.

An upper portion of the base plate130is sealed by a base plate cover132.

FIG. 2is a front view illustrating a disaster-proof home according to an embodiment of the present invention, andFIG. 4is a perspective view illustrating of the protection wall200of the disaster-proof home according to an embodiment of the present invention.

As described above, the protection wall200is formed in the shape of a square box with an open upper part to provide the evacuation space230therein.

The fixing hole212is penetrated and formed at the center of the vertical wall210constituting the protection wall200, and the vibration reducer240is fixed to the fixing hole212. One end of the vibration reducer240is formed in a shape corresponding to the fixing bole212and thus is firmly fixed to the fixing hole212, and the other end is protruded toward an inside of the evacuation space230. The vibration reducer240is formed of silicone or rubber material having elasticity.

As described above, the vertical wall210has a square or rectangular shape, and the support fixing hole250in which the support310of the lift300is vertically inserted and fixed, is formed to be caved at a position adjacent to each corner of the vertical wall210. The support fixing hole250has a shape corresponding to cross-section of the support310, and the support310is combined in a constrainedly coupling manner.

When the earthquake occurs in a state where the house100is located in the evacuation space230inside of the protection wall200, the house100is irregularly swung back and forth and right and left, and the vibration reducer240serves to reduce such vibrations occurring in the house100while contacting the front, rear, left, and right sides of the house100.

In other words, when the vibration reducer240having a protrusion shape is placed inside of the protection wall200of a house, the vibration reducer240protruding from each vertical wall210is projected to be adjacent to the outer wall body120of the house100. Thus, when the house100is vibrated, the house100is connected to the vibration reducer240, and the vibration reducer240reduces vibration of the house100.

FIG. 2is a front view illustrating a disaster-proof home according to an embodiment of the present invention, FIG.5is a perspective view illustrating the lift300and the multilevel pipe500of a disaster-proof home according to an embodiment of the present invention, andFIG. 6is a plan view illustrating that the lift300and the multilevel pipe500are positioned inside the protection wall200.

As described above, the lift300is installed in the evacuation space230of the protection wall. In other words, the lift300is firmly fixed to the bottom wall220of the protection wall200.

The lift300comprises the support310fixed to the support fixing bole250formed in the protection wall200and the lifting frame320installed on the support310to move up and down according to operation of a controller. The lift300is installed with a four-pillar type having four supports310.

The support310is inserted into the support fixing hole250of the protection wall200to be vertically erected. The guide hole312is vertically formed on the support310so that the guide322of the lifting frame320is inserted into the guide hole312, and thus the lifting frame320may be linearly reciprocated. Further, a cross section of the guide hole312may be formed in a T-shape.

The lifting frame320which is a rectangular frame is formed to correspond to the width of the base plate130of the house100. The lifting frame320generally has a rectangular frame shape. The lifting frame320may be cut at the center thereof.

Each guide322having a shape corresponding to a cross section of the guide hole312protrudes outwardly from each corner of the lifting frame320. Each guide322is provided in each guide hole312.

A driving motor is provided below the support310, and a driving means such as a chain is mounted in the guide hole312to lift or lower the lifting frame320in a balanced state by rotational force of the driving motor.

When the house100floats on the water due to buoyancy, the multilevel pipe500serves to fasten the housing100not to float in the water. The multilevel pipe500is fixed to the bottom wall220of the protection wall200. The multilevel pipe500comprises a fixing pillar510as a base, a hollow pillar pipe520vertically installed to fix a lower end of the fixing pillar510, a hollow lifting pillar pipe530having both ends opened to be able to move up and down on the pillar pipe520, and a hollow fixing pipe540fixed to an upper end of the outer wall body120of the house100.

The fixing pillar510is formed of concrete to serve as a base and are formed in four places to correspond to each corner of the outer wall body120of the house100on the bottom wall220of the protection wall200. Further, a center of the lifting frame320is cut, and the fixing pillar510is positioned inside the lifting frame320not to interfere with the lifting frame320.

The pillar pipe520is installed on the upper portion of the fixing pillar510. A lower portion of the pillar pipe520is firmly fixed to the fixing pillar510. The pillar pipe520is formed of a hollow metal pipe.

The lifting pipe530is inserted in the pillar pipe520. Both ends of the lifting pipe530are opened and an inside of the lifting pipe530is hollow. The lifting530is also formed of a metal pipe. The lifting pipe530is fixed to the pillar pipe520by loose coupling. The lifting pipe530is guided by the pillar pipe520to be lifted up and down.

In the event of a flood, when the house100is floated by the buoyant body400to be separated from the ground surface10, the lifting pipe530is unfolded, and when the house100descends into the evacuation space230, the lifting pipe530is folded into the pillar pipe520. Herein, the movement guide hole312is formed at an inner edge of the outer wall body120so that the pillar pipe520and the lifting pipe530are folded into the movement guide hole312. Further, when the lifting pipe530is unfolded, it is guided to be unfolded by the movement guide hole312.

An upper end of the fixing pipe540is fixed to an upper part of the outer wall body120of the house100. When the house100is floated by the buoyant force, it is guided by the lifting pipe530, and thus, the house100is spaced apart from the ground surface10, and the fixing pipe540serves to prevent the house100from being swept away by the flood water.

FIG. 7is a front view illustrating descent of a disaster-proof home according to an embodiment of the present invention.

When a strong wind30occurs in the vicinity of the house100due to a disaster such as a typhoon, a hurricane, a tornado, or a cyclone, a user who recognizes the strong wind30operates a controller of the lift300in the house100, and thus may move the house100to the evacuation space230of the protection wall200. The safety of residents may be secured by moving the house100into the evacuation space230.

FIG. 7illustrates a state in which the housing100is lowered into the evacuation space230by controlling the lift300.

Since the lifting frame320of the lift300supports the base plate130of the house100, the housing100is entered inside of the evacuation space230along descent of the lifting frame320.

Further, when the house100is lowered into the evacuation space230, only the roof110is exposed above the ground surface10. Further, the step hole114formed around a lower portion of the roof110is coupled to the protrusion180formed on the ground surface10. Thus, the roof110is firmly adhered to the ground surface10. Since the roof110is formed in a streamlined shape, even if the strong wind30directly comes into contact with the roof100, the strong wind moves without affecting the house100.

Therefore, it is possible to prevent damage to the housing100, property damage, and personal injury that may occur due to such a disaster.

After the disaster disappears and safety is secured, as illustrated inFIG. 2, by operating a controller, the house100may be lifted to be exposed above the ground surface10by the lift300.

Meanwhile, if there is a problem with power supply while the house100is positioned in the evacuation space230or a sudden emergency occurs, residents may open the hatch190and escape through a hatch hole112onto the roof110. Further, the hatch190is a circular plate and is openably and closably connected to the hatch hole112, and is formed of the same material as the roof.

FIG. 8is a front view illustrating vibration of the house100of a disaster-proof home according to an embodiment of the present invention.

Although a disaster such as an earthquake or a fire occurs, a user may operate a controller to move the house100to the escape space230formed in the protection wall200with the lift300to secure safety.

An earthquake may cause irregular shaking of the house100. In other words, the house100may be swung back and forth, and right and left above the lifting frame320.

Further, the vibration reducer240located on the vertical wall210of the protection wall200may absorb the impact of the vibration of the house100. Since the vibration reducer240protrudes from each vertical wall210to be adjacent to the outer wall body120of the house100on daily life, when the house100vibrates due to an earthquake, the house100contacts the vibration reducer240.

Since the vibration deceasing part240is formed of an elastic material, it absorbs the impact of the vibration of a house100. Therefore, damage to the housing100may be reduced, and the impact on a user inside the house100may also be reduced.

FIG. 9is a front view illustrating ascent of a disaster-proof home according to an embodiment of the present invention.

If a flood occurs, there is a risk that water40floods and a house is inundated with water. When the water40overflows the evacuation space230of the protection wall200due to the flood and comes up above an upper portion of the ground surface10, the house100may float in the water40by buoyancy of the buoyant body400built in the base plate130of the house100.

In other words, when the water40is flooded to overflow the house100, the house100is floated on the water40by the buoyancy of the buoyant body400built in the base plate130. Further, the house100does not ascend and descend by the lifting frame320of a lift300, but floats on the water40by pure buoyant force of the buoyant body400.

Further, since the buoyant body400is divided into a plurality of pieces in a lattice shape by the partition wall134in the base plate130, when the house100is floated by the water40, the partition wall134serves to disperse the load, and thus the buoyancy allows the house100to float on the water40smoothly.

Further, when a house100floats on the water40, and there is a risk that the house100is swept away by the water flow of the water40, the multilevel pipe500firmly fastens the house100.

While a fixing pillar510of a multilevel pipe500is firmly fixed to a bottom of a bottom wall220of a protection wall200, a pillar pipe520is positioned in an evacuation space230and a lifting pipe530is unfolded over a ground surface10.

Further, the fixing pipe540inserted into the lifting pipe530is guided by the lifting pipe530and thus is lifted. Since an upper end of the fixing pipe540is fixed to the pipe guide hole122of the outer wall body120, when the house100is lifted by the buoyant force, the multilevel pipe500is sequentially opened, and the plate130of the house100may be placed on the water40to be spaced apart from the paper surface10.

Therefore, the flooding of the house100is prevented, and damage to property and human life due to flooding is prevented.

Meanwhile, a plurality of air cocks124are formed through an upper portion of the outer wall body120of the house100. When the house100is lowered toward a ground surface10after the flood is over and the water40is lowered in water level, the air cock124serves, as a passage for allowing the air to pass through the house100.

120: outer wall body,122: pipe guide hole,124: air cock

140: water tank,142: water tank cover

200: protection wall