Water cut-off device and installation method of water cut-off device

Abstract

To provide a water cut-off device facilitating position adjustment in a height direction of a column.SOLUTION: A water cut-off device is provided with a water cut-off body 20 intersecting an assumed water flow direction and a column 10 supporting the water cut-off body 20 at an end side in a width direction. The column 10 is provided with: a base column 11a running over in a vertical direction; a support column 11b, a vertical position of which is adjustable relating to the base column 11a, detachably attached thereto to support the water cut-off body 20; and an adjustable projection part 15 projecting downward from the support column 11b to abut on a lower side immovable surface F, in which a projection amount is adjustable.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a water stop device that uses a substantially plate-shaped water stop body to close the opening of a building or underground passage when the water level rises, thereby preventing water from entering, and a method for installing the water stop device. [Background technology]

[0002] When rising water caused by a typhoon or heavy rain enters the opening of a building or underground passage, it can cause serious damage due to flooding. In preparation for such an event, a water stop device is known in the art that erects support pillars on both sides of the opening in the building or underground passage and stores plate-shaped water stop bodies near the support pillars, and when rising water occurs, the water stop bodies are attached to the support pillars on both sides to prevent water from entering (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-179156 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional technology, the upper and lower engaging protrusions on the water-stopping body are fitted into the upper and lower engaging recesses on the support, so that the water-stopping body is pressed against the support and the lower fixed surface, thereby achieving good watertightness. For this reason, when erecting the support pillars on both sides of the opening in the body, it is desirable to ensure that the height position of the support pillars from the lower immovable surface is as accurate as possible. However, the fixed surface on the lower side of the support pillar often has different unevenness (uneven surface, sloped surface, etc.) depending on the site, so it is necessary to adjust the position of the support pillar in the height direction and fix it for each site. Furthermore, even if a support pole is positioned vertically at the site, it may be removed for design reasons except during periods of high water levels. In such cases, the vertical position must be adjusted again and the support pole reattached. [Means for solving the problem]

[0005] In view of the above problems, one aspect of the present invention is provided with the following configuration. A water-stopping device comprising a water-stopping body that intersects with the expected direction of water flow and a support pillar that supports the water-stopping body at its end in the width direction, wherein the support pillar is equipped with a base pillar that extends in the vertical direction, a support pillar that is detachably attached and adjustable in its vertical position relative to the base pillar to support the water-stopping body, and a variable protrusion that protrudes downward from the support pillar and abuts against a fixed surface on the lower side, the amount of protrusion of which can be adjusted. [Effects of the Invention]

[0006] Since the present invention is configured as described above, it is possible to easily adjust the position of the support column in the height direction. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view showing an example of a waterproofing device according to the present invention. [Figure 2] FIG. 2 is a perspective view showing the water stop device with the water stop body removed from the support. [Figure 3] FIG. 2 is a perspective view showing the lower side of the support pillar. [Figure 4] FIG. [Figure 5] This is a view showing the support pillars being attached to the base pillars, viewed from the inside in the opening width direction. [Figure 6] FIG. 10 is a view showing the state in which the height position of the support pillar is being adjusted, as viewed from the inside in the opening width direction. [Figure 7] This is a view from the inside in the opening width direction showing the water stop body being fitted to the support pillar. [Figure 8]10A and 10B are plan views sequentially showing how the water stop body is fitted to the support pole. DETAILED DESCRIPTION OF THE INVENTION

[0008] Next, an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the term "upstream side" refers to the upstream side in the expected direction of water flow, and the term "downstream side" refers to the downstream side in the expected direction of water flow, that is, the opposite side to the upstream side. In this embodiment, it is assumed that water flows from the outdoor side to the indoor side.

[0009] The water stop device A comprises support posts 10, 10 on both sides spaced apart on the left and right, and a water stop body 20 supported by the support posts 10, 10 stacked upward so as to intersect with the expected water flow direction (see Figure 1).

[0010] <About the support> The left and right support pillars 10, 10 support each water stopping body 20 at the end side in the width direction. Each support 10 comprises a support body 11 that is arranged approximately perpendicular to the lower immovable surface F and extends in the vertical direction, a lower engaged portion 12 provided on this support body 11, an upper engaged portion 13 provided on the support body 11 above the lower engaged portion 12, and a variable protruding portion 15 that protrudes downward from the support body 11 to abut against the lower immovable surface F and whose protruding amount H is adjustable (see Figures 1 to 3). According to this embodiment, a plurality of pairs of the lower engaged portion 12 and the upper engaged portion 13 are provided in the vertical direction so as to correspond to the plurality of water stopping bodies 20, respectively.

[0011] The lower immovable surface F is an immovable surface on the lower side of each support 10, such as a floor surface, a dirt floor surface, the ground, a shoe sliding surface, or the like. The support columns 10, 10 on both sides are fixed to the facing surfaces on both sides of an opening in the structure of a building, an underground passage, or the like.

[0012] According to a preferred example shown in the figure, of the vertically adjacent water-stopping bodies 20, 20, the lower engaged portion 12 corresponding to the upper water-stopping body 20 and the upper engaged portion 13 corresponding to the lower water-stopping body 20 form an integral engaged block 12X (see Figure 3).

[0013] The support pillar body 11 is made up of a base pillar 11a fixed to the facing surface W (see Fig. 6) on both sides of the opening in the main body, and a support pillar 11b protruding upstream from the base pillar 11a to support the water stop body 20. The cross section of the support pillar body 11 is integrated into an approximately L-shaped structure (see Fig. 8), and the support pillars 11b extend vertically. The support pillar body 11 is formed long so as to straddle the multiple stacked water stop bodies 20 in the vertical direction.

[0014] According to the illustrated example, the base pillar 11a is a columnar member with an approximately rectangular cross section extending in the vertical direction, and has a water stop body receiving surface 11a1 for receiving the water stop body 20 on its upstream side, closer to the inside in the width direction between the two pillars, and a support pillar mounting surface 11a2, closer to the outside in the same width direction, for attaching the support pillar 11b.

[0015] A substantially plate-shaped elastic watertight material 11c is provided at the lower end of the base pillar 11a so as to be pressed against the lower immovable surface F in a watertight manner.

[0016] The support pillar 11b is formed by bending a hard metal plate material, etc., into a long shape with an approximately C-shaped cross section extending in the vertical direction, and supports the widthwise end side of the water stop body 20.

[0017] The support column 11b is detachably attached to the base column 11a so that its vertical position can be adjusted. More specifically, the support pillar 11b has a plate-like portion 11b3 that overlaps the base pillar 11a, and this plate-like portion 11b3 has a plurality of vertically elongated holes 11b31 (two in the example of Figure 3) spaced apart in the vertical direction.

[0018] The support pillar body 11 is detachably fixed to the support pillar mounting surface 11a2 of the base pillar 11a by screw members 11b32 inserted into the respective elongated holes 11b31. That is, when each screw member 11b32 is loosened, the screw member 11b32 can be moved up and down within the elongated hole 11b31, and accordingly, the support column main body 11 can also be moved up and down.

[0019] A lower engaged portion 12 and an upper engaged portion 13 are attached to the inner surface of the support column 11b.

[0020] Furthermore, in the support pillar 11b, the space between the lower engaged portion 12 and the upper engaged portion 13 opens toward the inside in the width direction between the two pillars (see FIG. 3). In other words, the space S that is continuous in the vertical direction between the lower engaged portion 12 and the upper engaged portion 13 communicates with the space between the left and right pillars 10, 10. This space S facilitates the loosening operation of the screw member 11b32.

[0021] The support pillar 11b has a plate-shaped portion 11b1 at its upstream portion, which is disposed in a direction intersecting the water flow. The plate-shaped portion 11b1 is located upstream of the lower engaged portion 12 and the upper engaged portion 13. The plate-like portion 11b1 is provided with an opening 11b11 for inserting the lower engaging protrusion 22 from the upstream side, and an opening 11b12 for inserting the upper engaging protrusion 23 from the upstream side.

[0022] At the lower edge portion of the upper opening 11b12 in the plate-shaped portion 11b1, there is provided an upward protruding stopper portion 14 (stopper means) that receives the upper engaging protrusion 23 from the upstream side and stops this tilting when the upper side of the water-stopping body 20 tilts upstream. This stopper portion 14 is a plate-shaped member located slightly upstream of the upper engaged portion 13, and is superimposed on the inner surface of the plate-shaped portion 11b1. It is attached to the support column 11b of the support main body 11 using a long hole and fastening devices (bolts and nuts, etc.) so that its position can be adjusted in the vertical direction.

[0023] Furthermore, one or more (two in the illustrated example) variable protrusions 15 are provided on the lower end side of the support pillar body 11 (specifically, the support pillar 11b) (see FIG. 3). More specifically, the support pillar body 11 has, below the lower engaged portion 12, a substantially horizontal plate-like portion 11b4. The variable protrusion 15 is formed in a shaft shape that protrudes downward from a part of the plate-like portion 11b4. The variable protrusion 15 is configured to include a bolt-like member 15a that is inserted into the plate-like portion 11b4, and two nut-like members 15b, 15b that are annularly screwed onto the bolt-like member 15a and tightened to sandwich the plate-like portion 11b4 from above and below.

[0024] The head of the bolt-shaped member 15a faces downward, and the lower end thereof abuts against the lower fixed surface F. By loosening either of the nut-shaped members 15b, the bolt-shaped member 15a can be rotated clockwise or counterclockwise to move upward or downward.

[0025] The lower engaged portion 12 has a protrusion 12a that protrudes upward near the upstream end, and an inclined bottom surface portion 12b that guides the lower engaging protrusion 22 diagonally downward downstream from the protrusion 12a.

[0026] The protrusion 12a functions as a retaining projection that prevents the lower engaging protrusion 22 from slipping out of the opening 11b11 to the upstream side.

[0027] The inclined bottom surface portion 12b guides the lower engaging protrusion 22 diagonally downward toward the downstream side. A concave curved surface portion 12b1 (see FIG. 3) is provided at a location on the inclined bottom surface portion 12b midway toward the downstream side.

[0028] The concave curved surface portion 12b1 is formed in a concave shape with approximately the same curvature as the outer peripheral surface of the rolling member 22b of the lower engaging protrusion 22. This concave curved surface portion 12b1 partially fits under the outer peripheral surface of the rolling member 22b to position the lower engaging protrusion 22 when the water stop body 20 is attached to both supports 10, 10 in a watertight state.

[0029] The upper engaged portion 13 has an inclined top surface portion 13a that guides the rolling member 23b of the upper engaging protrusion 23 diagonally downward downstream, and an engaging top surface portion 13b that contacts the upper end of the rolling member 23b when the rolling member 23b moves downstream of the inclined top surface portion 13a (see Figure 3).

[0030] When the water stop body 20 is fitted between the two supports 10, 10 from the upstream side, the inclined top surface portion 13a guides the upper engaging protrusion 23 diagonally downward downstream. As a result, the vertical watertight material 26 (see FIG. 4) is pressed against the water stop body receiving surface 11a1 and elastically contracts, and the horizontal watertight material 27 is pressed against the immovable part on the lower side (the lower immovable surface F or the upper end of the lower water stop body 20) and elastically contracts.

[0031] When the water stop body 20 is fitted further downstream, the locking top surface portion 13b presses against the upper end of the rolling member 23b, thereby maintaining the lateral watertight material 27 in a good compressed state. The locking top surface portion 13b extends substantially horizontally downstream.

[0032] With the above configuration, a continuous empty space S is secured in the vertical direction between the lower engaged portion 12 and the upper engaged portion 13, which correspond to the lower engaging protrusion 22 and the upper engaging protrusion 23 of the water stop body 20 (see Figure 3).

[0033] The engaged block 12X is formed as a one-piece block having a lower engaged portion 12 in its upper half and an upper engaged portion 13 in its lower half, and is fixed to the inner surface 11b2 of the support column 11b by an appropriate fastening means (for example, fastening with screws, bolts, rivets, etc., welding, etc.) (see Figure 3).

[0034] <About water stoppers> Each water stop body 20 integrally comprises a horizontally elongated rectangular main body plate 21, lower engaging protrusions 22, 22 protruding to the left and right sides from the underside of the main body plate 21, upper engaging protrusions 23, 23 protruding to the left and right sides from above the lower engaging protrusions 22 of the main body plate 21, latch devices 25, 25 that engage and disengage with the left and right supports 10, 10, and a plurality of handles 24 provided on one surface of the main body plate 21 (the upstream side in the illustrated example) (see Figure 4).

[0035] Furthermore, each watertight body 20 comprises vertical watertight materials 26 which are pressed against the supports 10 continuously in the vertical direction on both sides of the width direction of the main body plate 21, horizontal watertight materials 27 which are pressed against the lower immovable part (the lower immovable surface F or the upper end of the lower watertight body 20) continuously in the horizontal direction at the lower end of the main body plate 21, a first auxiliary watertight material 28 fixed to the upper end of the main body plate 21 and the vertical watertight material 26, and a second auxiliary watertight material 29 fixed to the lower end of the main body plate 21 and the vertical watertight material 26 and connected to the horizontal watertight material 27.

[0036] Furthermore, of the water stopping bodies 20, 20 adjacent to each other in the vertical direction, the upper water stopping body 20 and the lower water stopping body 20 are provided with lateral positioning means 21a for aligning the water stopping bodies in the lateral direction. The lateral alignment means 21a are marks provided on the upstream side of the main plate 21, and are located on the upper and lower end sides in the center of the width direction of the main plate 21. The lateral alignment means 21a are flat sticker-like members attached to the upstream side of the main plate 21 with an adhesive on the back side.

[0037] The main body plate 21 is formed in a horizontally elongated rectangular shape from a hard material such as metal, and one end side and the other end side in the longitudinal direction overlap the water stop body receiving surface 11a1 of the support 10 (see FIG. 3). According to the illustrated example, the main body plate 21 is made up of a hollow, horizontally elongated rectangular member formed by drawing, and members covering both side surfaces of this member.

[0038] The main body plate 21 is provided with drainage holes (not shown) for draining water that seeps into the interior from joints between components such as the latch device 25 and the handle 24 to the outside. Therefore, the water stop body 20 sinks under its own weight when the water level rises, and when the water level drops, the water inside is released from the drainage hole.

[0039] The tip end of each lower engaging protrusion 22 and each upper engaging protrusion 23 is configured in the shape of a rollable roller, and engages with the lower engaged portion 12 and the upper engaged portion 13 from the upstream side.

[0040] In more detail, the lower engaging protrusion 22 comprises a shaft portion 22a fixed to the side surface of the main body plate 21 and a cylindrical rolling member 22b rotatably supported at the tip end of this shaft portion 22a, and protrudes laterally from the lower end of the side surface of the main body plate 21.

[0041] Similarly, the upper engagement protrusion 23 comprises a shaft portion 23a fixed to the side surface of the main body plate 21 and a cylindrical rolling member 23b rotatably supported at the tip end of this shaft portion 23a, and protrudes laterally from the upper end of the side surface of the main body plate 21.

[0042] The latch devices 25 are provided on the left and right end sides of the upstream side of the main body plate 21 near the upper end. Each latch device 25 is configured to manually extend and retract a horizontally extending engaging / disengaging rod to the side. The engaging / disengaging rod is engaged with and disengaged from the support 10.

[0043] The handles 24 are appropriately arranged at intervals in the width direction and the vertical direction on the upstream surface of each main body plate 21 so that they can be grasped when attaching the water stop body 20 to the support posts 10, 10 on both sides from the upstream side of the water flow direction.

[0044] The vertical watertight members 26 are provided on the left and right ends of the downstream surface of the main body plate 21, extending in the vertical direction. Each vertical watertight member 26 is made of an elastic material such as rubber or elastomer resin and is formed into a continuous, long piece extending over the entire length of the main plate 21 in the vertical direction. This vertical watertight material 26 is fixed to the downstream side of the main body plate 21 by fitting via a bracket or the like, and protrudes downstream from the main body plate 21. The tip side of this vertical watertight material 26 is formed into a convex cross section with the convex portion facing downstream (see the dashed line portion in Figure 6).

[0045] When the lower engaging protrusion 22 and the upper engaging protrusion 23 engage with the lower engaged portion 12 and the upper engaged portion 13, respectively, and the water stop body 20 is attached to the supports 10, 10 on both sides, the vertical watertight material 26 is continuously pressed against the water stop body receiving surface 11a1 in the vertical direction and elastically deforms.

[0046] The lateral watertight member 27 is provided at the lower end of the main body plate 21 and extends horizontally. The lateral watertight member 27 is made of an elastic material such as rubber or elastomer resin and is formed in a continuous, long shape across the lateral direction of the main body plate 21. Both longitudinal ends of the lateral watertight member 27 are in watertight contact with second auxiliary watertight members 29 (described later) (see FIG. 4). When the water-stopping body 20 is placed on the lower immovable part (the lower immovable surface F or the upper end surface of the adjacent water-stopping body 20 below), the lateral watertight material 27 is pressed against this immovable part in a watertight manner and elastically deforms.

[0047] The first and second auxiliary watertight materials 28, 29 are formed of sponge-like (foam rubber-like) EPDM. The first auxiliary watertight material 28 is sandwiched between the lower end of the vertical watertight material 26 of the upper watertight body 20 and the upper end of the vertical watertight material 26 of the adjacent lower watertight body 20, thereby improving the watertightness between them.

[0048] The second auxiliary watertight material 29 is in contact with the lower end surface of the main plate 21 and the lower end surface of the vertical watertight material 26 at one end side of the width of the main plate 21, and also in contact with the end portion of the horizontal watertight material 27 in the width direction, so that no gaps are created between these components (see Figure 4).

[0049] <How to install a water stop device> Next, the procedure for installing the waterproof device A having the above-described configuration, as well as its effects and advantages, will be described in detail.

[0050] First, the base pillar 11a constituting the support body 11 is fixed to the facing surfaces W on both the left and right sides of the frame opening using anchor members (not shown) or the like (see FIG. 5). At this time, the elastic watertight material 11c on the lower end side of the base pillar 11a is compressed, and the base pillar 11a is pressed watertightly against the lower fixed surface F. In addition, the gap between the support body 11 and the facing surfaces W is made watertight using a sealant or the like.

[0051] Next, the support column 11b is attached to the fixed base column 11a. More specifically, the support pillar 11b is erected on the lower immovable surface F so as to be aligned with the support pillar mounting surface 11a2 of the base pillar 11a. The support column 11b is lightly fastened to the base column 11a by a screw member 11b32 inserted into the elongated hole 11b31. In other words, in this state, the screw member 11b32 is not tightly fastened, and the support column 11b can move up and down within the range of the elongated hole 11b31.

[0052] Next, the support column 11b is adjusted to an appropriate height and positioned. A jig G is used for this height adjustment. The jig G is an inverted L-shaped elongated body having a designed height from the lower immovable surface F to the locking top surface portion 13b of the upper engaged portion 13. The jig G is fitted between the lower immovable surface F and the locking top surface portion 13b.

[0053] Next, the protrusion amount H of the variable protrusion portion 15 that contacts the lower stationary surface F is adjusted so that the support pillar 11b is positioned at a specified height (protrusion amount adjusting step). Specifically, with the upper and lower nut-shaped members 15b loosened, the bolt-shaped member 15a abutting the lower fixed surface F is turned to adjust the position of the support pillar 11b in the vertical direction so that the lower end of the jig G abuts the lower fixed surface F and the upper end of the jig G abuts the engaging top surface portion 13b. Thereafter, the bolt-shaped member 15a is fixed by tightening the upper and lower nut-shaped members 15b.

[0054] Then, the support column 11b is fixed to the base column 11a by tightening the screw member 11b32 (initial installation step).

[0055] After the initial installation process, the user or the like loosens the screw member 11b32 to remove the support column 11b, and then when the support column 11b is attached to the base column 11a again, the lower end of the variable protrusion 15 is brought into contact with the lower fixed surface F, and the support column 11b is fixed to the base column 11a with the screw member 11b32 without using the jig G. In other words, since the protrusion amount H of the variable protrusion portion 15 is adjusted in the protrusion amount adjustment process described above, the support pillar 11b can be installed at the appropriate height position simply by placing it on the lower fixed surface F without using the jig G.

[0056] Next, as shown in FIGS. 7 and 8, the water stop body 20 is fitted to the support pole 11b located at an appropriate height. The watertight body 20 has its lower engaging protrusion 22 and upper engaging protrusion 23 fitted into the lower engaged portion 12 and upper engaged portion 13, respectively, to press the vertical watertight material 26 against the watertight body receiving surface 11a1 of the support 10, and press the horizontal watertight material 27 and second auxiliary watertight material 29 against the lower fixed surface F, thereby watertightly sealing the space between the left and right supports 10, 10 (see Figure 7).

[0057] After this, other water stopping bodies 20 are successively stacked on top of the previously installed water stopping body 20. The other water stopping bodies 20 are also engaged with the left and right support posts 10, 10 in the same manner as above.

[0058] Thus, with the water stop device A and its installation method of the above configuration, the support pillar 11b can be easily installed at an appropriate height position, and even if the support pillar 11b is removed and reattached, the support pillar 11b can be easily positioned in the height direction. In particular, in the above embodiment, the variable protrusion 15 is formed in the shape of a shaft that protrudes downward from a portion of the lower end surface of the support pillar 11b, so that even if the lower fixed surface F is uneven (uneven, etc.), the support pillar 11b can be stably abutted against the lower fixed surface F with little rattling.

[0059] <Modification> According to the above embodiment, the variable protrusion 15 is configured by a bolt-shaped member 15a and a nut-shaped member 15b, etc., but as another example of this variable protrusion 15, it is also possible to configure the bolt-shaped member so that it is directly screwed into the lower end side of the support main body 11 (for example, the plate-shaped portion 11b4).

[0060] According to the above embodiment, three water-stopping bodies 20 are stacked, but other examples include a configuration in which two or four or more water-stopping bodies 20 are stacked, or a configuration in which a single water-stopping body 20 is used.

[0061] Furthermore, the present invention is not limited to the specific configurations described above, and can be modified as appropriate within the scope of the present invention.

[0062] <Summary> As described above, the above embodiments disclose the following inventions. (1) A water-stopping device (see Figures 1 to 8) comprising a water-stopping body that intersects with the expected direction of water flow, and a support pillar that supports the water-stopping body at the end side in the width direction, the support pillar comprising a base pillar that extends in the vertical direction, a support pillar that is detachably attached and adjustable in vertical position relative to the base pillar to support the water-stopping body, and a variable protrusion that protrudes downward from the support pillar and abuts against a fixed surface on the lower side, the amount of protrusion of which can be adjusted. (2) The water stopping device according to (1) (see FIG. 3) is characterized in that the variable protrusion is formed in a shaft shape that protrudes downward from a part of the lower end surface of the support pole. (3) A method for installing a water-stopping device as described in (1) or (2) (see Figures 5 and 6) characterized in that it includes a protrusion amount adjustment process for adjusting the protrusion amount of the variable protrusion so that the support pillar is at a specified height position, and then an initial installation process for fixing the support pillar to the base pillar. (4) A method for installing a water-stopping device as described in (3) (see Figure 5), characterized in that if the support pillar is removed from the base pillar after the initial installation process, the support pillar is fixed to the base pillar while the variable protrusion is abutted against the lower fixed surface. [Explanation of symbols]

[0063] 10: Prop 11: Support body 11a: Base pillar 11a1: Water stop receiving surface 11a2: Support column mounting surface 11b: Support pillar 11b1, 11b3, 11b4: Plate-shaped portion 11b11,11b12: Opening 12: Lower engaged part 12b: Slanted bottom part 12b1: Concave curved surface part 13: Upper engaged part 13a: Slanted top section 13b: Locking top surface part 14: Stopper part 15: Variable protrusion 15a: Bolt-shaped member 15b: Nut-shaped member 20: Water stop body 21: Main board 22: Lower engagement protrusion 22b: Rolling member 23: Upper engagement protrusion 23b: Rolling member 26: Vertical watertight material 27: Lateral watertight material A: Water stop device F: Lower immovable surface S: Space H:Protrusion amount

Claims

1. The structure is provided with a water stop body that intersects with the expected water flow direction and a support column that supports the water stop body at the end side in the width direction, The water-stopping device is characterized in that the support pillar comprises a base pillar that extends in the vertical direction, a support pillar that is adjustable in vertical position relative to the base pillar and is detachable to support the water-stopping body, and a variable protrusion portion that protrudes downward from the support pillar and abuts against a fixed surface on the lower side, and the amount of protrusion can be adjusted.

2. 2. The waterproof device according to claim 1, wherein the variable protrusion is formed in a shaft shape that protrudes downward from a part of the lower end surface of the support pole.

3. A method for installing a water stop device as described in claim 1 or 2, characterized in that it includes a protrusion amount adjustment process for adjusting the protrusion amount of the variable protrusion portion so that the support pillar is at a specified height position, and then an initial installation process for fixing the support pillar to the base pillar.

4. A method for installing a water-stopping device as described in claim 3, characterized in that if the support pillar is removed from the base pillar after the initial installation process, the support pillar is fixed to the base pillar while the variable protrusion is abutted against the lower fixed surface.

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