JP2022185758A - Waterproof device - Google Patents

Abstract

To provide a waterproof device which replaces conventional sandbags and water bags for preventing flooding of entrances and exits of buildings when the water level rises due to a typhoon or heavy rain, and which is small and lightweight, has good storability, and improves usability.SOLUTION: The invention comprises a plurality of boxes 1 whose upper part is open and water is stored inside. The bottom surface is made smaller than the upper part by making a slope from the upper part to the lower part of the box 1. Drain holes 6 are provided in the bottom surface. Cutouts 2 are provided in two places on opposed side surfaces 5a and 5b of the upper part. One of the cutouts 2 forms a connecting hook 3 for connecting with the other box 1 in the cutout part. The box 1 is provided with inwardly protruding portions 4a, 4b, 4c, and 4d. A regulation groove 7 is provided on the outside of the side surface 5d where the cutout 2 is not formed. A water stop plate 8 is sandwiched between a plurality of boxes 1 which are arranged and connected to close a gap to assemble a prevention device of an arbitrary size.SELECTED DRAWING: Figure 3

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproofing device for preventing flooding of entrances and exits of buildings such as residences and commercial facilities when water levels rise due to typhoons and heavy rains.

Flood damage caused by typhoons and heavy rains has increased due to climate change in recent years, and there is a growing demand for flood control measures for buildings. When it is not possible to prepare large-scale flood prevention equipment, sandbags and water bags are used as simple measures in ordinary houses and small-scale facilities. When sandbags are used, bags and sand are provided by local governments, etc., but the work involves going to a sand storage site, filling the bag with sand, and bringing it home for installation. .
There are also commercially available water bags that use water bags instead of sand, and water bags that are solidified by swelling a hydrophilic polymer in a bag with water. In addition, when a hydrophilic polymer is used, there is a problem that it is difficult to dispose of the expanded bag after use.

Japanese Patent No. 6436410 Japanese Patent No. 4718887 Japanese Patent Application Laid-Open No. 2019-2172

Aqua Defenser Series “Waterproof Box” Catalog Daikure Internet Co., Ltd. <https://webb-daikure.net/catalogcat/%e7%b0%a1%e6%98%93%e9%98%b2%e6%b0 %b4%e8%a3%bd%e5%93%81/>

As a prior art that replaces sandbags and waterbags, there is a waterbag box for preventing flooding described in Patent Document 1. This flood-prevention water box is made by combining rectangular parallelepipeds and arc-shaped boxes horizontally and vertically like blocks, and filling water in the box to form a waterproof wall at the entrance of a house or facility. . This box is lightweight and can be stored compactly, and it is assumed that multiple boxes will be connected and used. Since the lowermost and uppermost boxes have different structures, it is necessary to prepare multiple types of boxes, such as rectangular parallelepipeds for the lowermost and upper stages, and arc-shaped boxes that form the corners. In addition, when storing when not in use, since the boxes are not structured to overlap each other, they are stored with the same volume as when in use, which takes up a lot of space.
In addition, when pouring water, it is necessary to line up the boxes and pour water into each box using a hose or the like, which requires a lot of manpower and a long time.
In addition, although the boxes are supposed to be made of lightweight materials such as hard plastic, assuming that the boxes will be several tens of centimeters in size, it is necessary to connect the boxes horizontally and vertically without any gaps. The box must be manufactured with highly accurate dimensions without distortion. Therefore, the cost of the box is high, and the cost of purchasing a plurality of boxes is also high.

Patent Literature 2 discloses a prior art that pours water into a plurality of boxes from one point. This box is not a single box, but rather a series of connected and fixed boxes, so water can be injected simply by drilling a horizontal hole. It requires a lot of technology and becomes an expensive product.

In Patent Literature 3 and Non-Patent Literature 1, the planters are usually installed as plant cultivation planters, and when the water level rises, the planters are arranged at the doorway of the building and connected with a connecting means to form a waterproof wall, and are permanently installed near the doorway of the building. It is characterized by being able to move quickly in an emergency. However, just by arranging the planters in a horizontal row, it is not possible to expand them in a fan shape or stack them in multiple layers, so there is no flexibility in installation, so the possible entrances and exits are limited. In addition, planters containing soil and plants are heavy, and in an emergency, the labor of moving multiple planters to the required location is a heavy burden.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a waterproof device which solves the above-described problems of the conventional anti-immersion tool and is inexpensive, easy to store, and improved in usability.

In order to achieve the above object, the waterproof device of the present invention is a waterproof device installed at the entrance of a building to prevent flooding, and comprises a plurality of boxes that are open at the top and store water, and the boxes are arranged from the top to the bottom. The bottom is made smaller than the top by making a slope, the bottom is provided with a drain hole, the top is provided with two notches on opposite sides, one of the notches is the notched part of the other box A connecting portion is formed to connect with the box, a projecting portion is provided toward the inside of the box, and a regulating groove for sandwiching a water stop plate is provided on the outside of the side surface where the notch is not formed.

A water stop plate is used to close the gap between boxes when the boxes are connected. Water leakage from gaps is prevented by inserting a water stop plate into regulation grooves formed on the sides of adjacent boxes while the boxes are connected. The water stop plate is made of a softer material than the box body, and has a trapezoidal shape with a narrow upper part to match the inclination of the regulation groove on the side of the box, and is forcibly sandwiched and fixed with dimensions equal to or greater than the regulation groove.

At least two types of boxes, a substantially rectangular parallelepiped and a substantially fan-shaped box, are used, and any number of either or both of them can be used, and by connecting them horizontally and stacking them up, it is possible to assemble them into an arbitrary shape.
The nearly fan-shaped box has a shape that allows selection of an angle when arranging it in a fan shape by connecting a single box or a plurality of boxes. The substantially rectangular parallelepiped boxes are connected on a straight line, and the substantially fan-shaped boxes are connected to the portions to be angled.

The box is provided with a projecting portion, and the projecting portion is provided with a receiving surface on which the upper box is placed and a portion for holding the attitude of the upper box. In addition, by forming the protruding portions at the central portion and other positions of the facing surface and making the shapes different from each other on the facing surface, the overlapping amount can be changed deep and shallow by changing the stacking direction of the boxes.
When a plurality of boxes are connected and water is poured from one box near the center, water can be poured into all the boxes via the water channel formed by connecting the notches and the drainage hole on the bottom.

According to the waterproofing device of the present invention, by combining a plurality of boxes, it is possible to assemble a waterproofing device of arbitrary size according to the structure of the building doorway and the flood situation.
By using a substantially fan-shaped box, the waterproof device can be deployed in a fan shape, but the boxes are in close contact with each other by receiving the water pressure of the inundation from the outside of the fan, increasing the pressure resistance and water resistance of the waterproof device as a whole.
The box has a slope from the top to the bottom, but if it is made of resin material, it will be a draft angle for injection molding, and the mold structure can be simplified to provide the product at a low price. The problem of creating gaps between adjacent boxes due to slopes is solved by closing the gaps with water stop plates.
The water stop plate is made of a softer material than the box and has a trapezoidal shape with a narrow upper part. The dimensions are adjusted to match the regulation groove of the box or slightly larger, and it is forcibly installed between the boxes along the regulation groove. When water enters the box here, the weight of the water presses the water stop plate against the regulating groove and the ground, exerting a water stop effect.

When not in use, the boxes can be stacked in the same direction so that they overlap deeply and can be stored small, but when in use, stacking the boxes in the opposite direction will allow the boxes to sit on the protruding part, allowing the upper and lower boxes to hold enough water. . The upper box functions as a weight for the lower box to prevent floating due to water pressure, and when the water level exceeds the lower level, the upper box can also have a function to prevent flooding.
The protruding portion has two levels of protruding amount, and by setting a part of the protruding amount to match the lower dimension of the upper box, the posture of the upper box can be maintained when the upper box is placed. It also has the effect of preventing the posture of the upper box from tilting, and the effect of preventing the upper box from floating due to buoyancy when the lower box is filled with water.

The protruding part is also formed in the central part of the opposing side surface, and it becomes a handle when carrying the box, and it is useful when carrying a box containing water or stacked boxes.
The weight of the water entering the box and the water pressure received from the outside put a heavy load on it, but the protruding part also functions as a reinforcing rib, making it possible to make the box thinner and lighter.
At least one of the sides of the box has a flat surface on the inside and outside of the side, which is easy to work with when using this side of the box instead of a bucket for pumping up water or earth. In addition, since the box is sloped, it has a structure that is easy to scoop.

Appearance diagram showing a roughly rectangular parallelepiped main box that constitutes a waterproof device A diagram showing the inside of a roughly rectangular parallelepiped main box that makes up the waterproof device. A diagram of the main box, which is a rectangular parallelepiped, that makes up the waterproof device and is vertically and horizontally connected to incorporate a water stop plate. Diagram showing the state in which the main boxes of approximately rectangular parallelepipeds that make up the waterproof device are stacked when not in use. Appearance diagram showing a fan-shaped sub-box that constitutes a waterproof device A diagram showing the inside of the fan-shaped sub-box that constitutes the waterproof device. External view showing the upper part of the fan-shaped sub-box that constitutes the waterproof device A view of the substantially fan-shaped sub-boxes that make up the waterproof device connected vertically and horizontally and incorporating a water stop plate. Diagram showing the stacking state of fan-shaped sub-boxes that make up the waterproof device when not in use. Overall structure of a waterproof device that connects the main and sub-boxes in one step Overall structure of waterproof device with two-stage connection of main and sub-boxes Overall structure of a waterproof device with two main and sub-boxes connected, another combination example Appearance of a substantially rectangular parallelepiped main box that makes up a waterproof device with a seat hook attached Appearance of a fan-shaped sub-box that makes up a waterproof device with a hook for a seat Side view of a waterproof device with a waterproof sheet that is connected in two stages Bottom view of main box

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a main box 1 having a substantially rectangular parallelepiped shape, and a plurality of main boxes 1 are arranged in a straight line to form a waterproof device. FIG. 2 shows the internal structure of the main box 1. As shown in FIG. The main box 1 of the present invention is of one type, and the same one can be used for the lower stage and the upper stage.
The main box 1 has a substantially rectangular parallelepiped shape with side surfaces 5a, 5b, 5c, and 5d.
The upper ends of the pair of opposing side surfaces 5a and 5b have cutouts 2 and connecting hooks 3 that form a connecting portion that also serves as the cutouts 2. As shown in FIG. The notch 2 is provided at a portion of the upper end of the side surface 5a, and the connecting hook 3 is provided at a portion of the upper end of the side surface 5b. The notches 2 and connecting hooks 3 are formed lower than the upper ends of the side surfaces 5a, 5b, 5c, and 5d, and serve as channels for pouring water. The connecting hook 3 serves to connect by hooking on the notch 2 of the adjacent main box 1 or the notch 22 (see FIG. 5) of the adjacent sub-box 21 (see FIG. 10).

A projecting portion 4a is formed on the side surface 5b, and projecting portions 4b, 4c, and 4d are formed on the side surface 5a. The protrusions 4a, 4b, 4c, and 4d are convex inside the main box 1 and concave outside the main box 1, and are formed at the same height from the bottom of the side surfaces 5a and 5b to the top of the side surfaces 5a and 5b. ing. The protruding portions 4a, 4b, 4c, and 4d do not reach the upper ends of the side surfaces 5a and 5b. Further, the widths of the projecting portions 4a, 4b, 4c, and 4d are formed wider at the bottom than at the top.
The protruding portions 4a and 4c function as handles for carrying by being positioned at the central portions of the side surfaces 5b and 5a, respectively. By forming a protruding part 4a on one side surface 5b and forming protruding parts 4b, 4c and 4d on the other side surface 5a, two main boxes 1 are stacked in the same direction and deeply stacked, and are stacked in the opposite direction by 180 degrees. , and the upper main box 1 overlaps shallowly up to the protrusions 4a, 4b, 4c, and 4d. The upper ends of the protrusions 4a, 4b, 4c, and 4d are formed in two stages with different protrusion amounts (heights).

The projecting portion 4a is formed with a first upper end surface 4a1 and a second upper end surface 4a2. It is formed inside the box 1 . The first upper end surface 4a1 holds the posture of the main boxes 1 stacked on the upper level, and the second upper end surface 4a2 functions as a surface on which the main boxes 1 stacked on the upper level are placed. Like the protruding portion 4a, the protruding portion 4b is formed with a first upper end surface 4b1 and a second upper end surface 4b2, and the protruding portion 4c is formed with a first upper end surface 4c1 and a second upper end surface 4c2. A first upper end surface 4d1 and a second upper end surface 4d2 are formed on the projecting portion 4d.
The first upper end faces 4a1, 4b1, 4c1 and 4d1 have the same height, and the second upper end faces 4a2, 4b2, 4c2 and 4d2 have the same height.

The inner and outer surfaces of the side surface 5c are flat without forming unevenness, and this surface can be effectively used for pumping water and scooping up earth and sand in the event of a disaster. The connecting hook 3 also functions as a handle when scooping up water or earth and sand.

The drainage hole 6 shown in FIG. 2 can be covered with a rubber plug or the like when water is stored, and when the waterproof device is put away after the disaster is over, the water can be easily drained by removing the plug. It can also carry water by itself and use it effectively.

Hard resin is suitable for the main box 1 because it can withstand the weight of water and water pressure from the outside, but recycled resin materials can be used. For example, it is possible to recycle polypropylene from drink caps collected in various places such as schools, which will contribute to society. The main box 1 is not limited to hard resin, and other materials can be substituted as long as it fulfills the required functions.

The restricting groove 7 shown in FIG. 1 is formed on the side surface 5d of the main box 1 so as to be inclined from the top to the bottom, and the restricting groove 7 sandwiches the water stop plate 8 (see FIG. 3). The waterproof plate 8 is preferably made of a material softer than that of the main box 1, and a soft and easily deformable material such as polyethylene is suitable.

FIG. 3 shows a state in which two main boxes 1a and 1b are horizontally connected and two main boxes 1c and 1d are placed on the top.
Between the regulation groove 7a of the main box 1a and the regulation groove 7b of the main box 1b, a trapezoidal shape with a narrow upper side is formed, and a water stop plate 8 is sandwiched along the regulation grooves 7a and 7b. The upper main boxes 1c and 1d are placed on the main boxes 1a and 1b in a direction 180 degrees opposite to the lower main boxes 1a and 1b. The upper main boxes 1c and 1d are received by the projecting portions 4a, 4b, 4c and 4d of the lower main boxes 1a and 1b.

In FIG. 4, three main boxes 1 are stacked in the same direction. In this way, when the main boxes 1 are stacked in the same direction, the overlapping amount can be deepened, and many main boxes 1 can be stacked and transported when not in use without water, and the storage space can be reduced. can.

5 and 6 are diagrams showing the substantially fan-shaped sub-box 21. FIG.
In this embodiment, the sub-box 21 has a pentagonal shape when viewed from above with side surfaces 25a, 25b, 25c, 25d, and 25e. The upper ends of the pair of opposing side surfaces 25a and 25b have cutouts 22 and connecting hooks 23 that form a connecting portion that also serves as the cutouts 22 . The notch 22 is provided at a portion of the upper end of the side surface 25a, and the connecting hook 23 is provided at a portion of the upper end of the side surface 25b. The notch 22 and the connecting hook 23 are formed lower than the upper ends of the side surfaces 25a, 25b, 25c, 25d, and 25e, and serve as channels for pouring water. The connecting hook 23 serves to connect by hooking on the notch 2 of the adjacent main box 1 or the notch 22 of the adjacent sub-box 21 (see FIG. 10).

A projecting portion 24a is formed on the side surface 25b, and a projecting portion 24b is formed on the side surface 25a. The protrusions 24a and 24b are convex inside the sub-box 21 and concave outside the sub-box 21, and are formed at the same height from the bottom of the side surfaces 25a and 25b to the top of the side surfaces 25a and 25b. The protruding portions 24a and 24b have a height that does not reach the upper ends of the side surfaces 25a and 25b. Moreover, the width of the projecting portions 24a and 24b is formed wider at the bottom than at the top.
The protruding portions 24a and 24b function as handles for carrying by being positioned at the center portions of the side surfaces 25b and 25a, respectively.
The projecting portions 24a and 24b receive an upper sub-box 31 (see FIG. 7) to be placed on the upper stage.

In this embodiment, the upper ends of the protruding portions 24a and 24b are not formed in two steps unlike the main box 1, but they may be formed in two steps with different protrusion amounts (heights). The upper sub-box 31 has a pentagonal outer periphery and a smaller bottom area than the main box 1, and can maintain its posture without forming two stages by reducing the draft angle. The sub-box 21 is used exclusively for the lower stage.

The drainage hole 26 shown in FIG. 6 can be covered with a rubber plug or the like when water is stored, and can be easily drained by removing the plug when the waterproof device is put away after the disaster is over. 21 alone can carry water and use it effectively.

The restriction grooves 27 shown in FIG. 5 are formed on the side surfaces 25c and 25d of the sub-box 21 so as to be inclined from the top to the bottom, and the water stop plate 8 is sandwiched between the restriction grooves 27 (see FIG. 8). For the water stop plate 8, a material softer than that of the sub-box 21 is preferable, and a soft and easily deformable material such as polyethylene is suitable.

FIG. 7 is a diagram showing the upper sub-box 31. As shown in FIG. The upper sub-box 31 has a pentagonal shape when viewed from above with side surfaces 35a, 35b, 35c, 35d, and 35e. In the upper sub-box 31 , the positions of the notch 32 and the connecting hook 33 are opposite to the positions of the notch 22 and the connecting hook 23 of the sub-box 21 . That is, the notch 32 is provided at a portion of the upper end of the side surface 35b, and the connecting hook 33 is provided at a portion of the upper end of the side surface 35a.
The cutouts 32 and the connecting hooks 33 are formed lower than the upper ends of the side surfaces 35a, 35b, 35c, 35d, and 35e, and serve as channels for pouring water. The connecting hook 33 serves to hook and connect to the notch 2 of the adjacent main box 1 or the notch 32 of the adjacent upper sub-box 31 (see FIG. 11).

Although not shown, the upper sub-box 31 can be received by the protrusions 24a and 24b of the sub-box 21 by forming the protrusions at positions different from the protrusions 24a and 24b of the sub-box 21. Since the sub-boxes 21 have different side lengths, they cannot be stacked in different directions, and an upper sub-box 31 is prepared separately from the sub-boxes 21.例文帳に追加

In this embodiment, the sub-box 21 and the upper sub-box 31 are fan-shaped with an angle of 30 degrees, and by connecting them, angles of 30 degrees, 60 degrees, and 90 degrees can be given. The basic angle between the sub-box 21 and the sub-box 31 for the upper stage does not necessarily have to be 30 degrees, and they may be combined at other angles.

FIG. 8 is a diagram in which two sub-boxes 21a and 21b are horizontally connected, and two upper-level sub-boxes 31a and 31b are connected to the upper level.
A water stop plate 8 is sandwiched between the connected sub-boxes 21a and 21b.
Between the regulation groove 27a of the sub-box 21a and the regulation groove 27b of the sub-box 21b, a trapezoidal shape with a narrow upper side is formed, and the water stop plate 8 is sandwiched along the regulation grooves 27a and 27b.

In FIG. 9, the three sub-boxes 21 are stacked, and the storability is good when not in use. The sub-boxes 21 and the upper sub-boxes 31 can be stacked in multiple stages.

In FIG. 10, the main box 1 and the sub-box 21 are combined and connected in only one step. The main boxes 1 are laterally connected by hooking the connecting hooks 3 and 23 on the notches 2 of the adjacent main boxes 1 and the notches 22 of the sub-boxes 21. - 特許庁Portions where the connecting hooks 3, 23 and the notches 2, 22 are connected form water channels, and water flows to the adjacent main box 1 and sub-box 21. - 特許庁When a hose or the like is inserted into one part of the main box 1 or sub-box 21 near the center and water is injected, water flows to the main box 1 and sub-box 21 on both sides, and the outside of the main box 1 or sub-box 21 on both ends. When water spills out from the notches 2 and 22 of the main box 1 and the sub-boxes 21, the water is poured up to the lower ends of the notches 2 and 22. A water stop plate 8 is sandwiched between each main box 1 and sub-box 21. - 特許庁The present invention can be configured with only one stage of connection. If the amount of inundation is assumed to be low, it may be possible to take countermeasures with a single-stage configuration.

FIG. 11 is a diagram of a two-stage connection, in which three sub-boxes 21 are connected at a corner to form an angle of 90 degrees, and the whole is arranged in a U shape, which is suitable for use in a relatively large area. In FIG. 12, two sub-boxes 21 are arranged at 60-degree corners and one sub-box 21 is arranged at each end to form a relatively small sector. In this way, the form of connection can be freely changed depending on how the sub-boxes 21 are used.

FIG. 12 shows that the notch covers 9 are attached to the upper sub-boxes 31 at both ends. The notch covers 9 are attached to the notches 32 and the connection hooks 33 of the upper sub-boxes 31 located at both ends to prevent water from overflowing from both ends, thereby preventing the main box 1 and the upper sub-box 1 arranged at the upper level. The sub-box 31 can be fully filled with water. Another purpose of the notch cover 9 is that even when water is injected from the end of the row of the main boxes 1 with a hose, the water can flow all over.
In FIGS. 11 and 12, one type of main box 1 is used, but the directions are reversed in the lower and upper stages. The sub-box 21 is used for the lower stage, and the upper sub-box 31 is used for the upper stage. The lower boxes and the upper boxes are connected by connecting hooks 3, 23 and 33, and a water stop plate 8 is sandwiched between the lower boxes.

A plurality of boxes 1, 21 and 31 to be installed are transported to an installation site without water, and the lower boxes 1 and 21 are arranged horizontally and connected by hooking connection hooks 3 and 23. - 特許庁A water stop plate 8 is sandwiched between all the boxes 1 and 21. All drain holes 6 and 26 of the lower boxes 1 and 21 are plugged. 11 and 12, the upper boxes 1 and 31 are placed on top of the lower boxes 1 and 21, and the connecting hooks 3 and 33 are pulled to the adjacent boxes 1 and 31. Hang. This completes the assembly of the waterproof device, but since this work is done in the absence of water, it is a light work that anyone can do.
The assembled waterproofing device is arranged to surround the entrance of the building, but since there is a slight gap between the boxes 1, 21 at both ends of the waterproofing device and the building, waterproof tapes and sponges are applied according to the structure of each building. Use a piece of tape or similar to close the gap. If the floor surface is not flat such as soil or gravel, put a sheet of soft material such as sponge or cloth under the boxes 1 and 21, or tape the bottom of the boxes 1 and 21 to prevent water from entering from the floor surface. can be prevented. A waterproof tape, a tape with a cushioning material, or the like can be provided together with the waterproof device, but it is also possible for the user to use a commercially available general-purpose product to close the gap according to the installation location.

When the above preparations are completed, water is injected from the central boxes 1, 21, and 31 using a hose or the like. In the case of two-stage connection, water is poured from the boxes 1 and 31 in the upper center stage. In the case of two-stage connection, drain holes 6 and 26 of the lower boxes 1 and 21 are plugged, and water is poured into the drain holes 6 of the upper boxes 1 and 31 without plugging. When the lower boxes 1 and 21 are filled with water, the drain holes 6 of the upper boxes 1 and 31 are plugged. When the upper boxes 1 and 31 are filled with water, water supply is stopped to complete installation of the waterproof device.
When the water level rises during flooding, the lower boxes 1 and 21 may float due to buoyancy, but the upper boxes 1 and 31 function as weights to prevent the lower boxes from floating. Furthermore, when it is assumed that the water level will exceed the lower boxes 1 and 21, the upper boxes 1 and 31 can also be provided with a waterproof function. In FIGS. 11 and 12, it is assumed that the flood water level is the level of boxes 1 and 21 in the lower row, and there is a gap between the boxes 1 and 31 in the upper row. Although not shown, it is possible to separately prepare a water stop plate for closing the gaps between the upper boxes 1 and 31. By closing the gaps between the upper boxes 1 and 31, the water level can be lowered to the lower boxes 1 and 21. It can be waterproof even if it exceeds. However, how high the water level can be withstood depends on the terrain around the building and the force of the inundation.

As a countermeasure when the water level rises to the upper boxes 1 and 31, there is a method of using a commercially available waterproof sheet such as a blue sheet. The gaps between the upper boxes 1, 31 are filled by covering the entire assembled boxes 1, 21, 31 with a waterproof sheet. 13 shows a configuration in which the sheet hook 10 is attached to the main box 1, and FIG. 14 shows a configuration in which the sub-box 21 is attached with the sheet hook 10. As shown in FIG. FIG. 15 is a side view of the box having a two-stage structure. The hole of the waterproof sheet 11 is hung on the sheet hook 10, and the waterproof sheet 11 is laid on the bottom surface of the box. can. After the waterproof sheet 11 is hung, hoses are inserted from both ends of the boxes 1, 21 and 31 to supply water to the whole.

After the flooded water is drained, the plugs of the drainage holes 6 and 26 are removed to drain the water from the boxes 1, 21 and 31, and the boxes 1, 21 and 31 can be superimposed and put away easily. The bottoms of the boxes 1, 21, 31 are provided with reinforcing ribs. water flow becomes worse. Although FIG. 16 shows the bottom surface of the main box 1, water drainage is facilitated by notching a part of the rib like the reinforcing rib notch 12. As shown in FIG. The sub-boxes 21 and 31 are similarly rib-shaped.
In addition, since the connection hooks 3, 23, 33 can be easily removed by lifting the boxes 1, 21, 31 upward, it is possible to carry and use the box alone while containing water. Boxes 1, 21, and 31 can be stored in a warehouse when not in use, but may be used as a substitute for planters, buckets, and the like.

By using the waterproof device of the present invention, a building can be easily prevented from being flooded.

1 main box 1a main box 1b main box 1c main box 1d main box 2 notch 3 connecting hook 4a protruding part 4a1 first upper end face 4a2 second upper end face 4b protruding part 4b1 first upper end face 4b2 second upper end face 4c protruding part 4c1 First upper end surface 4c2 Second upper end surface 4d Protruding portion 4d1 First upper end surface 4d2 Second upper end surface 5a Side surface 5b Side surface 5c Side surface 5d Side surface 6 Drain hole 7 Regulation groove 7a Regulation groove 7b Regulation groove 8 Water stop plate 9 Cut Notch cover 10 Sheet hook 11 Waterproof sheet 12 Reinforcing rib notch 21 Sub-box 21a Sub-box 21b Sub-box 22 Notch 23 Connecting hook 24a Protruding part 24b Protruding part 25a Side 25b Side 25c Side 25d Side 25e Side 26 Drain hole 27 Regulating groove 27a Regulating groove 27b Regulating groove 31 Upper sub-box 31a Upper sub-box 31b Upper sub-box 32 Notch 33 Connection hook 35a Side 35b Side 35c Side 35d Side 35e Side

Claims (10)

A waterproof device installed at the entrance of the building to prevent flooding into the building,
It consists of multiple boxes that open at the top and store water inside,
The box is sloped from the top to the bottom to make the bottom smaller than the top,
A drainage hole is provided on the bottom surface,
Notches are provided in two places on the opposing side surfaces of the upper part,
one of the cutouts forms a connecting portion that connects the cutout portion to the other box;
The box is provided with an inwardly protruding portion,
A regulating groove is provided on the outer side of the side surface where the notch is not formed, and in a state in which a plurality of the boxes are connected, a water stop plate is attached to the regulating groove at a position that closes the space between the adjacent boxes. Waterproof device characterized. 2. The waterproof device according to claim 1, wherein the boxes are composed of a substantially rectangular parallelepiped main box and a substantially fan-shaped sub-box, and any one or both of them can be connected in plurality to be assembled into an arbitrary shape. 3. The waterproof device according to claim 2, wherein the sub-boxes are singly or plurally connected so that the angle of the sector can be changed. The regulating groove is arranged with an inclination from the lower part to the upper part of the box, and forms a trapezoidal shape with a narrower upper part between the regulating grooves between the boxes when the boxes are horizontally connected. The waterproof device according to claim 1, characterized by: 2. The waterproof device according to claim 1, wherein the water stop plate is made of a material softer than that of the box, has a size equal to or greater than a trapezoidal shape matching the regulation groove, and is forcibly inserted into the regulation groove. In the box, the projecting portions are provided on two opposite sides of the box to serve as receiving surfaces when the box is placed on the box, and some of the projecting portions change the amount of protrusion to maintain the attitude of the box to be placed on the upper stage. The waterproof device according to claim 1, characterized in that: The main box is characterized in that the protruding portion is formed at a position including the central portion of the opposing side surfaces, the opposing side surfaces have different shapes, and the overlapping amount is changed by changing the stacking direction of the main boxes. The waterproof device according to claim 2. In a state in which a plurality of the boxes are connected, the connected notches and the connecting portions form a water channel, and when water is poured into one of the boxes installed near the center of the plurality of connected boxes, the water channel When the boxes are connected in two stages, water is poured from the upper stage to the lower stage using the drain hole of the box placed on the upper stage as a water channel. The waterproof device according to claim 1. 2. The waterproof device according to claim 1, wherein at least one of the sides of said box is flat inside and outside. 2. The waterproof device according to claim 1, wherein at least one of the side surfaces of said box is provided with a projection for hanging a waterproof sheet.

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