Water-stopping device and method for installing the water-stopping device

Abstract

This improves the ease of attaching the upper water-stopping plate to the support column. [Solution] The water-stopping device comprises two support columns 10 spaced apart in a direction intersecting the expected water flow direction, and a plurality of water-stopping plates 20, 30 stacked on the two support columns 10 from the upstream side in the flow direction, with their left and right ends touching each other. The lower water-stopping plate 20 of the vertically adjacent water-stopping plates 20, 30 is provided with an inclined surface 25a that extends diagonally downward toward the downstream side, and the upper water-stopping plate 30 is in contact with or close to this inclined surface 25a from above.

Description

Technical Field

[0001] The present invention relates to a water stop device that closes the openings of buildings and subways with a water stop plate during rising water to prevent water intrusion, and a method for installing the water stop device.

Background Art

[0002] When rising water due to typhoons or heavy rain pours into the openings of buildings and subways, there is a risk of causing significant damage due to flooding. Therefore, in preparation for such a situation, a plate-shaped water stop plate is stored in advance near the openings of buildings and subways, and when rising water occurs, the water stop plate is fixed to the columns on both sides to prevent water intrusion. Such a water stop device has been conventionally known (see Patent Document 1). In such a water stop device, the operation of installing the water stop plate on the columns on both sides is performed by an operator or the like pressing the lower end side of the water stop plate with their feet to make it adhere to the column, and further pressing the upper side of the water stop plate by hand to make it adhere to the column.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the above-described water stop device, in order to cope with rising water with a higher water level, a structure has been proposed in which a plurality of water stop plates are stacked and pressed against the columns. However, when such a structure is adopted, the operation of pressing the lower end side of the upper water stop plate against the column may become difficult. In addition, when pressing the upper end side of the upper water stop plate against the column, there is also a risk that the lower side of the water stop plate moves away from the column.

Means for Solving the Problems

[0005] In view of these challenges, one aspect of the present invention comprises the following configuration. A water-stopping device comprising: two support columns spaced apart in a direction intersecting the expected direction of water flow; and a plurality of water-stopping plates stacked on the two support columns from the upstream side in the direction of flow, with their left and right ends touching each other; wherein the lower of the vertically adjacent water-stopping plates is provided with an inclined surface that extends diagonally downward toward the downstream side, and the upper water-stopping plate is in contact with or close to this inclined surface from above. [Effects of the Invention]

[0006] As described above, the present invention is configured in a way that improves the workability when attaching the upper water-stopping plate to the support column. [Brief explanation of the drawing]

[0007] [Figure 1] This is a perspective view showing an example of a water-stopping device according to the present invention. [Figure 2] (a) is a front view showing the water-stopping device installed on the building structure, and (b) is a plan view of (a). [Figure 3] This is a perspective view showing the water-stopping device with the upper and lower water-stopping plates removed from the support columns. [Figure 4] This is a perspective view showing the watertight material of the upper and lower water-stopping plates. [Figure 5] This is an enlarged side view showing the connection point between the upper and lower water-stopping plates. [Figure 6] (a) to (c) are side views sequentially showing the installation of the upper water-stopping plate. [Figure 7] This is an enlarged side view showing the connection portion of the upper and lower water-stopping plates in another example of the water-stopping device according to the present invention. [Figure 8] This is a perspective view showing another example of the water-stopping device according to the present invention, with the upper and lower water-stopping plates removed from the support column. [Modes for carrying out the invention]

[0008] <First Embodiment> Next, embodiments of the present invention will be described in detail with reference to the drawings. In the following description, "upstream side" refers to the upstream side in the assumed direction of water flow, and "downstream side" refers to the downstream side in the assumed direction of water flow, which is the opposite direction to the upstream side. In this embodiment, it is assumed that water flows from the outdoor side to the indoor side of the structure X.

[0009] The water-stopping device A comprises two support columns 10, 10 spaced apart on both sides in a direction intersecting the expected water flow direction, and a plurality of water-stopping plates 20, 30 (two in the illustrated example) stacked on the left and right ends of the support columns 10, 10 on both sides, starting from the upstream side in the flow direction (see Figures 1 and 3). This water-stopping device A is attached to the structure X (see Figure 2).

[0010] The structure X is, for example, a reinforced concrete building or an underground passage. This structure X has an opening Xa that communicates with the outside (for example, an opening for an automatic door, an opening in an underground passage, or any other opening through which people or objects can pass) and a lower fixed surface Xb located below this opening Xa (for example, a threshold, a lower frame, the ground, a floor, etc.).

[0011] The left and right support columns 10, 10 are fixed vertically to the upstream side of the structure X on the left and right sides of the opening Xa. Each support column 10 is integrally composed of a support column body 11 that extends almost vertically in the vertical direction, and a lower support member 12 that supports the lower water-stopping plate 20 at the lower side of the support column body 11.

[0012] The support column body 11 is formed as a hollow rectangular prism that extends vertically in a continuous, elongated shape. The upstream side surface 11a of this support column body 11 is a flat surface. The water-stopping plates 20 and 30, which will be described later, are pressed against this upstream side surface 11a in a watertight manner.

[0013] The lower support member 12 is composed of a long support bracket 12a fixed to the upstream side surface 11a of the column main body 11, an upper engaged portion 12b engaged with the water stop plate 20 on the upper end side of the support bracket 12a, and a lower engaged portion 12c engaged with the water stop plate 20 on the lower end side of the support bracket.

[0014] The upper engaged portion 12b and the lower engaged portion 12c are respectively provided corresponding to the upper engaged portion 24a and the lower engaged portion 24b of the lower water stop plate 20. The upper engaged portion 12b is formed so as to press the upper engaged portion 24a inserted from the upstream side downward and guide it to the downstream side. The lower engaged portion 12c is configured to receive the lower engaged portion 24b inserted from the upstream side on the lower side and guide it to the downstream side.

[0015] The lower water stop plate 20 integrally includes a rectangular plate-shaped main body plate 21, a plurality of handle portions 22 fixed to the surface of the main body plate 21, a watertight member 23 provided on the downstream side surface of the main body plate 21, upper and lower engaged portions 24a and 24b for engaging the water stop plate 20 with the lower support member 12, and a protrusion 25 located closer to the upstream at the upper end of the main body plate 21 (see FIGS. 1 to 4).

[0016] The watertight member 23 connects, without gaps, a lateral watertight material 23a that protrudes downward from the lower end of the main body plate 21 and continues in the lateral direction, vertical watertight materials 23b that protrude downstream on the left and right end sides of the main body plate 21 and continue in the vertical direction, a connecting watertight material 23c that connects the widthwise end of the lateral watertight material 23a and the lower end of the vertical watertight material 23b to maintain continuous watertightness, and an auxiliary watertight portion 23d provided at the upper end of the vertical watertight material 23b (see FIG. 4). These watertight materials are formed by appropriately cutting an integral long watertight material made of an elastic material such as rubber or elastomer resin to an appropriate length.

[0017] The upper engaged portion 24a and the lower engaged portion 24b are respectively provided at the upper end side and the lower end side of the side surface of the water stop plate 20 (see FIG. 3). The upper engaging portion 24a is formed by rotatably supporting a roller on the tip of a shaft that protrudes outward in the width direction from the main plate 21. The lower engaging portion 24b is formed in a similar manner.

[0018] The upper engaging portion 24a enters below the upper engaged portion 12b of the lower support member 12, is pressed downward, and is guided downstream. Furthermore, the lower engaging portion 24b is received by the upper surface of the upper engaged portion 12b of the lower support member 12 and guided downstream.

[0019] The downward pressing force resulting from the engagement between the upper engaging portion 24a and the upper engaged portion 12b causes the lateral watertight material 23a and the connecting watertight material 23c at the lower end of the lower watertight plate 20 to be watertightly pressed against the lower fixed surface Xb on the lower side. Furthermore, as the lower water-stopping plate 20 moves downstream, the vertical watertight material 23b is pressed watertightly against the upstream side surface 11a of the support column 10.

[0020] Furthermore, the projection 25 is located on the upper end of the main body plate 21, on the upstream side in the thickness direction of the main body plate 21. An inclined surface 25a is provided on the upper end side of this projection 25, which is directed diagonally downward toward the downstream side. The projection 25 and the inclined surface 25a are continuous over approximately the entire length of the main plate 21 in the lateral direction.

[0021] The inclined surface 25a is designed to receive and allow the stacked water-stopping plates 30 to slide. More specifically, when the upper water-stopping plate 30 is stacked on top of the lower water-stopping plate 20, the upstream corner portion 31a at the lower end of the main body plate 31 of the upper water-stopping plate 30 comes into contact with the inclined surface 25a and slides diagonally downward (see Figure 6).

[0022] The distance W (see Figure 5) between the projection 25 and the support column 10 is set appropriately so that, when the upper water-stopping plate 30 is stacked on top of the lower water-stopping plate 20 and pressed tightly against the support column 10, the water-stopping plate 30 is positioned between the projection 25 and the support column 10.

[0023] In the example shown in Figure 5, when the water-stopping plate 30 is installed, there is a small gap between the inclined surface 25a of the projection 25 and the corner portion 31a of the upper water-stopping plate 30. However, in other examples, it is also possible to eliminate this gap and configure the system so that the inclined surface 25a of the projection 25 and the corner portion 31a of the upper water-stopping plate 30 are in contact.

[0024] The upper water-stopping plate 30 comprises a rectangular plate-shaped main body plate 31, a plurality of handles 32 fixed to the upper end of the main body plate 31, a watertight member 33 provided on the downstream side of the main body plate 31, a positioning member 34 (see Figure 3) that abuts against the left and right support columns 10, 10 by bracing against both sides at the lower end of the main body plate 31, and a holding mechanism 35 that presses the water-stopping plate 30 against the lower water-stopping plate 20 and against the left and right support columns 10, 10, and maintains this pressed state.

[0025] The main plate 31 of the upper water-stopping plate 30 is thinner than the main plate 21 of the lower water-stopping plate 20. In other words, the lower water-stopping plate 20 is thicker than the upper water-stopping plate 30. In other words, the lower water-blocking plate 20 is thick and constructed to be highly strong so that it can withstand high water pressure at a depth greater than that of the water-blocking plate 30 during floods.

[0026] The watertight member 33 is formed by integrally connecting a lateral watertight member 33a that protrudes downward from the lower end of the main body plate 31 and is continuous in the lateral direction, vertical watertight members 33b that protrude downstream on the left and right ends of the main body plate 31 and are continuous in the vertical direction, and a connecting watertight member 33c that connects the widthwise end of the lateral watertight member 33a and the lower end of the vertical watertight member 33b to maintain their continuity (see Figure 4). These watertight materials are formed by cutting a single, long, integrated watertight material, made from an elastic material such as rubber or elastomer resin, to an appropriate length.

[0027] The positioning member 34 and the holding mechanism 35 are configured to position and detachably attach the upper water-stopping plate 30 between the left and right support columns 10, 10, and to hold it in a state of being pressed downward and downstream. These positioning member 34 and holding mechanism 35 can be those described in, for example, Patent Document 1.

[0028] Next, the characteristic effects of the water-stopping device A with the above configuration will be explained in detail. Figures 6(a) to 6(c) show the procedure for attaching the water-stopping plates 30 to the support column 10 by stacking the upper water-stopping plate 30 on top of the lower water-stopping plate 20 that was installed first.

[0029] First, the upper water-stopping plate 30 is tilted downwards, as shown in Figure 6(a), and brought closer to the upper end of the lower water-stopping plate 20.

[0030] Next, the upstream corner portion 31a at the lower end of the main plate 31 of the water-stopping plate 30 is brought into contact with the inclined surface 25a at the upper end of the lower water-stopping plate 20. Then, the upper water-stopping plate 30 is moved diagonally downward by sliding the corner portion 31a along the inclined surface 25a, pressing the lateral watertight material 33a and the connecting watertight material 33c against the upper end surface of the lower water-stopping plate 20 and compressing them.

[0031] Next, the upper watertight plate 30 is rotated downstream so that its upper end is raised (see Figure 6(b)), and the vertical watertight material 33b is pressed against the upstream side 11a of the support column 10 and compressed.

[0032] Therefore, with the above-described water-stopping device A, when stacking the upper water-stopping plate 30 on top of the lower water-stopping plate 20, the lower end of the upper water-stopping plate 30 comes into contact with the inclined surface 25a and is smoothly guided diagonally downward on the downstream side. As a result, the workability when attaching the upper water-stopping plate 30 to the support column 10 is good. Moreover, the watertight member 33 of the water-stopping plate 30 is sufficiently compressed to prevent gaps from forming between the water-stopping plate 30 and the support column 10 and the lower water-stopping plate 20, thereby achieving good watertight performance. Furthermore, by engaging the upper water-stopping plate 30 with the support column 10, the water-stopping plate 30 is pushed downward, preventing the lower end of the water-stopping plate 30 from separating from the support column 10 and compromising its watertightness.

[0033] Furthermore, the water-stopping device A with the above configuration may be a water-stopping device newly equipped with upper and lower water-stopping plates 20 and 30, or it may be a water-stopping device with an existing water-stopping plate 30 to which a newly installed water-stopping plate 20 is added. In the latter case, the existing water-stopping plates 30 are installed individually on the support columns on both sides, which are shorter in vertical length than shown in the diagram. When constructing water-stopping device A, the aforementioned short support columns on both sides are replaced with the support columns 10, 10 of the above configuration, the existing water-stopping plates 30 are temporarily removed, the aforementioned water-stopping plates 20 are attached to the support columns 10, 10 on both sides, and the existing water-stopping plates 30 are stacked on top of these water-stopping plates 20.

[0034] <Second Embodiment> Next, an embodiment in which a part of the water-stopping device A described above has been modified will be explained. In the following explanation, components similar to those in the water-stopping device A described above will be denoted by the same reference numerals, and redundant explanations will be omitted.

[0035] The water-stopping device B, whose main components are shown in Figure 7, is the same as the water-stopping device A, but with the projection 25 replaced by a projection 26. The projection 26 has a substantially vertical rising surface 26a that follows the upstream surface of the upper water-stopping plate 30, and the lower end of the inclined surface 26b is connected to the upper end of this rising surface 26a. In the illustrated example, the longitudinal section has a horizontally oriented, substantially trapezoidal shape and is continuous in the lateral direction.

[0036] The distance W between the rising surface 26a and the support column 10 is set appropriately so that the upper water-stopping plate 30 fits between the rising surface 26a and the support column 10 when the upper water-stopping plate 30 is stacked on top of the lower water-stopping plate 20 and pressed tightly against the support column 10.

[0037] The inclined surface 26b is provided in the same manner as the inclined surface 25a above, to receive and slide the stacked water-stopping plates 30.

[0038] Therefore, the water-stopping device B shown in Figure 7 can achieve substantially the same effects as the water-stopping device A. Furthermore, since the upper water-stopping plate 30 is structured to fit between the rising surface 26a of the projection 26 and the upstream side surface 11a of the support column 10, the stability of the installed state of the water-stopping plate 30 can be improved.

[0039] <Third Embodiment> The water-stopping device C shown in Figure 8 is the same as the water-stopping device A, but with the projection 25 replaced by a plurality of projections 27 spaced apart in the lateral direction.

[0040] The protrusions 27 are provided near the center in the lateral direction of the lower water-stopping plate 20 and near both ends in the lateral direction of the lower water-stopping plate 20, respectively. Each projection 27 has an inclined surface 27a on its upper end that extends diagonally downward toward the downstream side, and in the illustrated example, it has the same longitudinal cross-sectional shape as projection 25.

[0041] Therefore, the water-stopping device C shown in Figure 8 can achieve substantially the same effects as the water-stopping device A, and a low-cost structure can be obtained due to the relatively short protrusion 27.

[0042] Furthermore, each projection 27 can also have the same vertical cross-sectional shape as the projection 26. Furthermore, in the water-stopping device C (see Figure 8) described above, the protrusions 27 are provided in the center and on both sides in the lateral direction of the water-stopping plate 20. However, other examples include a configuration in which the protrusions 27, 27 on both sides are omitted from the water-stopping device C, a configuration in which the central protrusion 27 is omitted from the water-stopping device C, and a configuration in which additional protrusions 27 are added between adjacent protrusions 27, 27 in the water-stopping device C.

[0043] <Other variations> In the above embodiment, a projection 25, which is a separate component, is provided at the upper end of the main plate 21 constituting the water-stopping plate 20, and an inclined surface 25a is formed on this projection 25. However, in another example, the projection 25 may be omitted from the water-stopping plate 20, and the shape of the upper end side of the main plate 21 may be made to have an inclined surface with the same shape as the inclined surface 25a. That is, the inclined surface 25a may be a separate component fixed to the main plate 21, or it may be a part formed integrally with the main plate 21.

[0044] Furthermore, the present invention is not limited to the specific configurations described above, and can be modified as appropriate without altering the essence of the invention.

[0045] <Summary> As described above, the above embodiment discloses the following invention. (1) A water-stopping device (see Figures 1 to 8) is characterized by comprising support columns on both sides spaced apart in a direction intersecting the expected water flow direction, and a plurality of water-stopping plates stacked on the support columns on both sides from the upstream side in the flow direction, with their left and right ends touching each other, and having an inclined surface that extends diagonally downward toward the downstream side on the lower of the vertically adjacent water-stopping plates, so that the upper water-stopping plate is in contact with or close to this inclined surface from above. (2) The water-stopping device according to (1) (see Figures 5 to 7), characterized in that the inclined surface is located upstream of the upper end of the water-stopping plate. (3) The water-stopping plate is characterized by integrally comprising a main body plate and a projection provided at the upper end of the main body plate, and having the inclined surface on the upper end side of the projection (see Figures 5 and 7). (4) The water-stopping device according to (3) (see Figure 7), characterized in that the projection has a rising surface along the upstream surface of the upper water-stopping plate, and the lower end of the inclined surface is connected to the upper end of this rising surface. (5) The water-stopping device according to any one of (1) to (4) (see Figures 3 and 8), characterized in that the inclined surface is provided near the center in the lateral direction of the lower water-stopping plate. (6) The water-stopping device according to any one of (1) to (5) (see Figures 3 and 8), characterized in that the inclined surface is provided near both ends in the lateral direction of the lower water-stopping plate. (7) The water-stopping device according to any one of (1) to (6) (see Figure 3), characterized in that the inclined surface is continuous over substantially the entire length in the lateral direction of the lower water-stopping plate. (8) A method for installing a water-stopping device according to any one of (1) to (7) (see Figure 6), characterized in that the lower water-stopping plate is installed so as to be in contact with the support columns on both sides, and then the lower end portion of the upper water-stopping plate is slid onto the inclined surface of the lower water-stopping plate, thereby stacking the upper water-stopping plate on top of the lower water-stopping plate. [Explanation of symbols]

[0046] 10: Prop 11: Main support column 11a:Upstream side 12: Lower support member 20: Water stop plate (lower side) 21: Main panel 23: Watertight component 25,26,27: Protrusion 25a, 26b: Inclined surface 26a: Rising surface 30: Water stop plate (upper side) 33: Watertight component A,B,C: Water stop device X: skeleton Xa: opening Xb: Lower immovable surface

Claims

1. It comprises support columns on both sides spaced apart in a direction intersecting the expected water flow direction, and a plurality of water-stopping plates stacked on top of the support columns on both sides, with their left and right ends touching the upstream side in the flow direction, A water-stopping device characterized in that the lower of the two adjacent water-stopping plates is provided with an inclined surface that extends diagonally downward toward the downstream side, and the upper water-stopping plate is in contact with or close to this inclined surface from above.

2. The water-stopping device according to claim 1, characterized in that the inclined surface is located upstream of the upper end of the water-stopping plate.

3. The water-stopping device according to claim 1, characterized in that the water-stopping plate integrally comprises a main body plate and a projection provided at the upper end of the main body plate, and the inclined surface is provided on the upper end side of the projection.

4. The water-stopping device according to claim 3, characterized in that the projection has a rising surface along the upstream surface of the upper water-stopping plate, and the lower end of the inclined surface is connected to the upper end of this rising surface.

5. The water-stopping device according to claim 1, characterized in that the inclined surface is provided near the center in the lateral direction of the lower water-stopping plate.

6. The water-stopping device according to claim 1, characterized in that the inclined surface is provided near both ends in the lateral direction of the lower water-stopping plate.

7. The water-stopping device according to claim 1, characterized in that the inclined surface is continuous over substantially the entire length in the lateral direction of the lower water-stopping plate.

8. After installing the lower water-stopping plate so that it is in contact with the support columns on both sides, A method for installing a water-stopping device according to any one of claims 1 to 7, characterized in that the lower end portion of the upper water-stopping plate is slid onto the inclined surface of the lower water-stopping plate, thereby stacking the upper water-stopping plate on top of the lower water-stopping plate.

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