Water stop device

Abstract

To realize a water stop device with easy positioning and installation work and at a low cost.SOLUTION: A water stop device 10 comprises at least two first magnetic bodies 25 and a water stop plate 30 arranged to seal a space between the first magnetic bodies 25 and to prevent ingress of water. On a facing plate surface 31A of the water stop plate 30 facing each of the first magnetic bodies 25, a second magnetic body 45 and a seal material 40A adjacent to the second magnetic body 45 in a direction along the facing plate surface 31A are provided. The second magnetic body 45 of the water stop plate 30 is magnetically adsorbed with the first magnetic body 25.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present technology relates to a water stopping device. [Background technology]

[0002] Conventionally, water stop devices are known that are installed at the entrances and exits of buildings to prevent water from entering when natural disasters such as floods occur. In recent years, removable water stop devices that can be installed by the user have been proposed, and examples of such devices are disclosed in Patent Documents 1 and 2. Patent Document 1 describes a water stop device that is installed by dropping a water stop panel (water stop plate) that blocks the entrance between a pair of mullions (supports) erected at the entrance from above. Patent Document 2 describes a water stop device that is installed by pressing a water stop plate against a pair of support pillars (supports) erected at the entrance from the upstream side in the water entry direction and fixing the water stop plate and the support pillars by an engagement part. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6348866 [Patent Document 2] JP 2018-48535 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the case of a drop-in type water stop device as in Patent Document 1, the user must lift the heavy water stop plate and drop it between the posts, which makes the installation process difficult and dangerous. In addition, a locking mechanism is required to prevent the water stop plate from floating up, which increases costs. On the other hand, in the case of an engagement type water stop device as in Patent Document 2, the installation process is easy, but a dedicated member must be used for the engagement part. In addition, high dimensional accuracy is required in both the manufacturing and construction of the product to ensure reliable engagement, which increases costs. Furthermore, once a conventional water stop plate is installed, it is difficult to move it again, and it is also difficult to align the water stop plate when fine-tuning its position after installation.

[0005] The present technology has been developed based on the above-mentioned circumstances, and aims to realize a low-cost water-stopping device that is easy to align and install. [Means for solving the problem]

[0006] In order to solve the above problems, the water-stopping device related to the present technology comprises at least two first magnetic bodies and a water-stopping plate arranged to block the space between the first magnetic bodies and prevent water from entering, and a second magnetic body and a sealing material adjacent to the second magnetic body in a direction along the opposing plate surface of the water-stopping plate are provided on the opposing plate surface facing each of the first magnetic bodies, and the second magnetic body of the water-stopping plate is magnetically attracted to the first magnetic body.

[0007] The second magnetic body and the first magnetic body of the waterstop may be attracted to each other by a magnetic force generated from at least one of the first magnetic body or the second magnetic body.

[0008] In addition, the first magnetic body may have a first adhesive surface extending along a direction intersecting with the opposing plate surface of the waterstop, and the second magnetic body may have a second adhesive surface extending along a direction intersecting with the opposing plate surface of the waterstop and magnetically adhesive to the first adhesive surface.

[0009] In addition, a mounting member may be provided on the opposing plate surface of the waterstop for arranging the second magnetic body so that the second adsorption surface extends along a direction intersecting with the opposing plate surface of the waterstop.

[0010] The first magnetic body may have an end surface facing the opposing plate surface of the waterstop.

[0011] The sealing material may be made of foamed rubber and may be interposed between the opposing plate surface of the waterstop plate and the end surface of the first magnetic body.

[0012] In addition, the first magnetic body and the second magnetic body may extend in the vertical direction, the sealing material may be adjacent to the lower side of the first magnetic body, the second magnetic body may have a first contact portion in contact with the first magnetic body and a second contact portion in contact with the sealing material, and the first contact portion of the second magnetic body may be attracted to the first magnetic body by magnetic force.

[0013] The sealing material may be provided adjacent to the lower and lateral sides of the first magnetic body on the opposing plate surface.

[0014] The sealing material may be made of foam rubber.

[0015] The waterstop may also have a fitting portion for stacking multiple waterstops.

[0016] The waterstop may also have a hollow portion that communicates with the outside and serves as a water flow path.

[0017] The waterstop may be made of an extruded aluminum alloy member. Effect of the Invention

[0018] According to the present technology, it is possible to realize a low-cost water stop device that is easy to align and install. [Brief description of the drawings]

[0019] [Figure 1] FIG. 1 is an exploded perspective view of a waterproof device according to a first embodiment. [Diagram 2] Plan view of the opposing surface of the water stop [Diagram 3] Top view of the water stop device before installation [Figure 4] Top view of the water stop device after installation [Diagram 5] Enlarged side view of the fitting area of ​​the water stop [Figure 6] Top view of a water stop device before installation according to Comparative Example 1 [Figure 7] Top view of a water stop device before installation according to Comparative Example 2 [Figure 8] FIG. 13 is an exploded perspective view of a water-stopping device according to a second embodiment. [Figure 9] Plan view of the opposing surface of the water stop [Figure 10] Plan view of the second magnetic body [Figure 11] FIG. 13 is an exploded perspective view of a water stopping device according to another embodiment; [Figure 12] Plan view of the opposing surface of the water stop [Figure 13] A plan view of the opposing plate surfaces of a water stop plate according to another embodiment. [Figure 14] A plan view of the opposing plate surfaces of a water stop plate according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] <Embodiment 1> A first embodiment will be described with reference to Fig. 1 to Fig. 5. In this embodiment, a water stop device 10 will be illustrated. Note that an X-axis, a Y-axis, and a Z-axis are shown in a portion of each drawing, and each axis direction is drawn to be a common direction in each drawing.

[0021] 1, the water stop device 10 includes two first magnetic bodies 25 attached in an upright state to a support surface such as the ground, and a water stop plate 30 arranged to block the space between the first magnetic bodies 25 and prevent water from entering. The water stop device 10 can prevent water from entering indoors by attaching the first magnetic bodies 25 to two supports 20 installed at both ends of an opening in a building, for example, and attaching the water stop plate 30 to the first magnetic bodies 25. The water stop device 10 can be used not only indoors, but also to prevent water from entering parking lots, premises, etc.

[0022] In this embodiment, there is no particular limitation on what the first magnetic body 25 is attached to, and the first magnetic body 25 can be attached to a desired location of the waterstop 30. In the following, as shown in Figs. 1 and 2, a case will be exemplified in which the first magnetic body 25 is attached to a support 20, which is a columnar member extending in the Z-axis direction (the vertical direction intersecting with the placement surface).

[0023] Here, the support 20 to which the first magnetic body 25 is attached has at least a main surface 21 facing the water stop plate 30 (opposing plate surface 31A described later in detail) and a side surface 22 extending in a direction intersecting with the main surface 21. The support 20 according to this embodiment has a rectangular cross section, and the main surface 21 and the side surface 22 are two of four flat surfaces (outer surfaces) constituting the rectangular cross section. The shape of the support 20 is not limited to a rectangular cross section as long as it includes the main surface 21 and the side surface 22, and may be, for example, a trapezoidal cross section.

[0024] In this embodiment, the first magnetic body 25 can be attached to a location where it is magnetically attracted to the second magnetic body 45 arranged on the water stop plate 30 described later, and is attached to the side surface 22 of the support 20, for example. The first magnetic body 25 is in the shape of a vertically elongated flat plate whose longitudinal direction is along the vertical direction (extension direction of the side surface 22). The surface of the first magnetic body 25 on the side surface 22 side of the support 20 is the mounting surface 25B that is attached to the side surface 22, as shown in Figures 3 and 4. In this embodiment, the mounting surface 25B is attached by adhesion, but the mounting method is not limited. In addition, the surface of the first magnetic body 25 opposite to the mounting surface 25B becomes the first attracting surface 25C that is magnetically attracted to the second attracting surface 45C of the second magnetic body 45 described later.

[0025] It is preferable that the end surface 25A of the first magnetic body 25 facing the waterstop 30 (more specifically, the opposing plate surface 31A) is arranged so as to be substantially flush with the main surface 21 of the support 20, as shown in Figs. 3 and 4. The first magnetic body 25 and the second magnetic body 45 are magnetically attracted to each other, so that the end surface 25A and the main surface 21 are pressed against the first seal material 40A (described later) provided on the waterstop 30. Therefore, by arranging the end surface 25A and the main surface 21 so as to be substantially flush with each other, a gap with the first seal material 40A is unlikely to occur. This can improve the waterstop performance.

[0026] The materials of the second magnetic body 45 and the first magnetic body 25 are not limited as long as they can be magnetically attracted to each other, and they may be provided so as to be attracted by the magnetic force generated from at least one of the magnetic bodies. For example, one may be a ferromagnetic body and the other a paramagnetic body, or both may be ferromagnetic bodies. The second magnetic body 45 according to this embodiment is a neodymium magnet, which is a ferromagnetic body, and the first magnetic body 25 is a paramagnetic body.

[0027] The waterstop 30 is a plate-like member having an overall rectangular shape, and in this embodiment, it has a horizontally long rectangular shape, but it may have a vertically long rectangular shape or a square shape. The waterstop 30 is disposed upstream of the struts 20 in the water advance direction so that the wall portion 31 including the opposing plate surface 31A covers the space between the struts 20.

[0028] As shown in Figs. 1 and 2, the waterstop 30 has a plurality of hollows 35 formed so as to be stacked in the vertical direction. The wall 31 including the opposing plate surface 31A forms a part of the wall constituting the hollow 35. The hollow 35 extends in the left-right direction, and both ends in the left-right direction are connected to the outside. This makes the hollow 35 a flow path into which water can flow. Water flowing into the hollow 35 can prevent the waterstop 30 from floating up. The shape of the hollow 35 is preferably rectangular in side view as shown in Fig. 5 in order to increase the bending rigidity of the waterstop 30, but is not limited thereto, and the number of hollows 35 can be adjusted as appropriate.

[0029] The waterstop plate 30 is assembled by stacking the components of the lower waterstop panel 30L, the waterstop panel 30M, and the upper waterstop panel 30U vertically. The lower waterstop panel 30L, the waterstop panel 30M, and the upper waterstop panel 30U each have a fitting portion 36 so that they can be fitted together. As shown in Fig. 5, the fitting portion 36 is fitted by a fitting protrusion 37 formed on one component (for example, the lower waterstop panel 30L) being hooked onto a fitting claw 38 formed on the other component (for example, the waterstop panel 30M). If a sealant made of silicone resin or the like is applied to the connecting portion (for example, see the framed portion I in Fig. 5) of each panel 30L, 30M, and 30U, it becomes easier to prevent water leakage from the gaps between the connected panels 30L, 30M, and 30U.

[0030] As shown in Figs. 1 and 5, the lower water stop panel 30L has three hollows 35 and a fitting protrusion 37 formed at the upper end, and is placed on the placement surface. The water stop panel 30M has three hollows 35, a fitting protrusion 37 formed at the upper end, and a fitting claw 38 formed at the lower end. The water stop panel 30M is stacked on the lower water stop panel 30L by fitting its fitting claw 38 into the fitting protrusion 37 of the lower water stop panel 30L. The upper water stop panel 30U has two hollows 35, a handle 39 formed at the upper end, and a fitting claw 38 formed at the lower end. The upper water stop panel 30U is stacked on the water stop panel 30M by fitting its fitting claw 38 into the fitting protrusion 37 of the water stop panel 30M. The height of the water stop panel 30 from the placement surface can be adjusted by increasing or decreasing the number of water stop panels 30M.

[0031] The lower water stop panel 30L, the stop water stop panel 30M, and the upper water stop panel 30U can be made of known materials and are not particularly limited. Known metals such as aluminum, stainless steel, and iron, wood, and resins such as plastic can be appropriately used, but in this embodiment, each is made of an extruded aluminum alloy material. Each part, such as the hollow part 35 and the fitting part 36, is integrally manufactured as an extruded material, so that each part can be easily formed into a predetermined shape. In addition, the strength and rigidity can be increased, and a situation in which a large deflection or crack occurs and causes a water leak can be suppressed. The material of the lower water stop panel 30L, the stop water stop panel 30M, and the upper water stop panel 30U is preferably an aluminum alloy. By making them from an aluminum alloy, the shape does not warp and deform due to water penetration like wood, and they can be used repeatedly, and a lightweight, high-strength, and high-rigidity water stop plate can be realized. In addition, they can be recycled after disposal.

[0032] However, the waterstop 30 does not have to be configured with each component (lower waterstop panel 30L, lower waterstop panel 30M, upper waterstop panel 30U) stacked vertically. The waterstop 30 may be formed, for example, by integrating two opposing outer panels with a core material sandwiched between the outer panels by welding or the like.

[0033] As shown in Figs. 1 and 2, the waterstop 30 is provided with a sealant 40 for improving water-stopping properties, a second magnetic body 45, and a mounting member 47 for mounting the second magnetic body 45. The second magnetic body 45 and the mounting member 47 are provided on the opposing plate surface 31A of the wall portion 31 of the waterstop 30. The sealant 40 is provided on the opposing plate surface 31A and the bottom surface 31B of the waterstop 30. The sealant 40 provided on the opposing plate surface 31A is the first sealant 40A, and the sealant 40 provided on the bottom surface 31B is the second sealant 40B. The first sealant 40A, the second magnetic body 45, and the mounting member 47 are provided in total, one each on the left side and right side of the opposing plate surface 31A. More specifically, a set of the first sealing material 40A, the second magnetic body 45, and the mounting member 47 is arranged so that one set is between the central portion 31A1 and the left end portion 31A2 in the left-right direction (X-axis direction) of the opposing plate surface 31A, and the other set is between the central portion 31A1 and the right end portion 31A3, corresponding to the position of the support 20.

[0034] As shown in Fig. 3, each mounting member 47 is, for example, an angle material having an L-shaped cross section. When one first flat plate portion 47A constituting the L-shaped cross section of the mounting member 47 is attached to the opposing plate surface 31A of the waterstop 30, the other second flat plate portion 47B protrudes from the opposing plate surface 31A along the Y-axis direction (the direction intersecting with the opposing plate surface 31A). The method of mounting the mounting member 47 to the opposing plate surface 31A is not limited, and may be, for example, adhered by double-sided tape or welding, or detachably attached by fastening members (bolts, nuts, rivets, etc.). The material of the mounting member 47 may be the same as or different from that of the waterstop 30, but is, for example, the same aluminum alloy as that of the waterstop 30.

[0035] The second magnetic body 45 is provided on the second flat plate portion 47B of the mounting member 47 as shown in FIG. 3. The second magnetic body 45 is in the shape of a flat plate that is elongated vertically along the up-down direction (extension direction of the second flat plate portion 47B) as shown in FIG. 2. The surface of the second magnetic body 45 on the second flat plate portion 47B side becomes the mounting surface 45B that is attached to the second flat plate portion 47B. The surface of the second magnetic body 45 opposite to the mounting surface 45B becomes the second attracting surface 45C that magnetically attracts the first attracting surface 25C of the first magnetic body 25. The second attracting surface 45C of the second magnetic body 45 and the first attracting surface 25C of the first magnetic body 25 are attracted by a magnetic force (magnetic field) generated along the X-axis direction (direction along the opposing plate surface 31A) (see FIG. 4).

[0036] The waterstop 30 is attached to the support 20 by magnetically attracting the second magnetic body 45 to the first magnetic body 25 provided on the support 20. More specifically, as shown in Fig. 4, the second attraction surface 45C of the second magnetic body 45 is such that a portion 45C1 on the opposing plate surface 31A side of the waterstop 30 is adjacent to the first seal material 40A, and a portion 45C2 on the support 20 side (a portion not adjacent to the first seal material 40A) is attracted to the first attraction surface 25C. The second magnetic body 45 is disposed so as to be sandwiched between the mounting member 47 and the first magnetic body 25 in the attached state.

[0037] As shown in Fig. 1 to Fig. 4, each first seal material 40A has a vertically long flat plate shape and is provided at an opposing position so as to be pressed against the main surface 21 of the support 20 and the end surface 25A of the first magnetic body 25 on the opposing plate surface 31A side. The first seal material 40A is adjacent to the second magnetic body 45 in the X-axis direction (direction along the opposing plate surface 31A) and is provided on the opposite side of the second magnetic body 45 to the mounting member 47. The second seal material 40B has a horizontally long flat plate shape so as to cover the entire bottom surface 31B of the waterstop plate 30. The material of the seal material 40 is preferably a material (e.g., foamed rubber) that exhibits high waterstop properties when compressed. When the opposing plate surface 31A is pressed against the main surface 21 of the support 20 and the end surface 25A of the first magnetic body 25 due to the pressing force when attaching the waterstop plate 30 to the support 20 and the water pressure when launched, the sealing material 40 is compressed, thereby improving the waterstopping properties.

[0038] According to the water stop device 10 described above, the user can easily install the water stop device 10 by pressing the water stop plate 30 against the support pole 20 and magnetically attracting the second magnetic body 45 provided on the water stop plate 30 and the first magnetic body 25 provided on the support pole 20. In addition, the water stop performance can be improved by the first seal material 40A. By providing the first seal material 40A so as to be adjacent to the second magnetic body 45 in the direction along the opposing plate surface 31A (X-axis direction), the second magnetic body 45 and the first magnetic body 25 are attracted without the first seal material 40A, and water stop performance and fixation by magnetic force can be achieved at the same time. If the first seal material 940A is provided so as to be adjacent to the second magnetic body 845 in the Y-axis direction (direction intersecting the opposing plate surface 31A) as in the water stop device 910 according to the comparative example 2 shown in FIG. 7, the magnetic force generated between the second magnetic body 845 and the first magnetic body 825 will be reduced, and fixation will be deteriorated. The waterproof device 910 according to Comparative Example 2 has the configuration shown in FIG. 7 over the entire vertical direction.

[0039] According to the water stop device 10, unlike the drop-in type water stop device described in Patent Document 1, the work of lifting the water stop plate and dropping it between the posts is not necessary, and the installation work is easy. Also, unlike the engagement type water stop device described in Patent Document 2, high dimensional accuracy is not required to ensure reliable engagement. Since the first magnetic body 25 and the second magnetic body 45 are magnetically attracted to each other to improve the adhesion by the first seal material 40A, the water stop plate 30 can be removed simply by releasing the magnetic coupling between the first magnetic body 25 and the second magnetic body 45. Precise alignment of the water stop plate 30 is easy, and manufacturing and construction costs can be reduced. Therefore, even if it is installed once, the water stop plate 30 can be moved again to fine-tune the position of the water stop plate 30. As a result, the water stop device 10 can be realized at low cost with easy alignment and installation work while ensuring water stoppage and fixation.

[0040] In this embodiment, the second magnetic body 45 of the waterstop 30 and the first magnetic body 25 of the support 20 are attracted by a magnetic force (magnetic field) generated along the X-axis direction (direction along the opposing plate surface 31A). More specifically, the second magnetic body 45 has a second attracting surface 45C extending along the Y-axis direction (direction intersecting with the opposing plate surface 31A), and the first magnetic body 25 has a first attracting surface 25C extending along the Y-axis direction (direction intersecting with the opposing plate surface 31A) and magnetically attracting the second attracting surface 45C. This generates a magnetic force (magnetic field) generated along the X-axis direction (direction along the opposing plate surface 31A) between the second attracting surface 45C and the first attracting surface 25C. As a result, the waterstop 30 can be more easily removed from the support 20, improving ease of attachment and detachment of the waterstop 30, compared to the case where the second magnetic body 845 and the first magnetic body 825 are attracted by a magnetic force (magnetic field) generated along the Y-axis direction (the direction intersecting with the opposing plate surface 31A of the waterstop 30) as in the waterstop device 810 according to Comparative Example 1 shown in Fig. 6. It should be noted that the waterstop device 810 according to Comparative Example 1 has the configuration shown in Fig. 6 throughout the entire vertical direction.

[0041] Furthermore, by providing the mounting member 47, the second magnetic body 45 can be easily disposed so that the second attraction surface 45C extends along the Y-axis direction (the direction intersecting with the opposing plate surface 31A). By changing the position of the mounting member 47, the position of the second magnetic body 45 can be easily changed according to the installation location where the distance between the supports 20 is different.

[0042] Furthermore, by providing the first magnetic body 25 on the side surface 22 of the support 20, the first magnetic body 25 can be disposed so that the first attraction surface 25C extends along the Y-axis direction (the direction intersecting with the opposing plate surface 31A).

[0043] <Embodiment 2> A water stopping device 110 according to the second embodiment will be described with reference to Fig. 8 to Fig. 10. Unlike the first embodiment, the water stopping device 110 is configured such that the second magnetic body 145 provided on the water stopping plate 30 and the first magnetic body 125 provided on the support pole 20 are attracted to each other by a magnetic force (magnetic field) generated along the Y-axis direction (the direction intersecting with the opposing plate surface 31A). In the second embodiment, the same configurations, actions, and effects as those in the first embodiment are denoted by the same reference symbols, and duplicated descriptions will be omitted.

[0044] Unlike the first embodiment, the second magnetic body 145 is directly provided on the facing plate surface 31A of the water stop plate 30 without the mounting member 47. The main surface of the second magnetic body 145 on the support 20 side becomes the second adsorption surface 145C with the first magnetic body 125. The second magnetic body 145 is provided on the left end 31A2 and the right end 31A3 of the facing plate surface 31A, one each. However, the second magnetic body 145 may be attached at a position a predetermined distance away from the left end 31A2 and the right end 31A3 depending on the installation location, as described later (see Figures 13 and 14). The lower end 145D of each second magnetic body 145 is provided with a predetermined gap L1 from the bottom surface 31B (the lower end of the facing plate surface 31A).

[0045] As shown in Fig. 9, each of the first seal materials 140A is provided adjacent to the lower and lateral sides of the second magnetic body 145 on the opposing plate surface 31A of the waterstop plate 30. More specifically, the lower adjacent portion 140A1 of the first seal material 140A to the second magnetic body 145 is provided between the lower end portion 145D of the second magnetic body 145 and the bottom surface 31B (the lower end portion of the opposing plate surface 31A) of the opposing plate surface 31A (the region of the interval L1). Also, the lateral adjacent portion 140A2 of the first seal material 140A to the second magnetic body 145 is provided on the central portion 31A1 side of the opposing plate surface 31A with respect to the second magnetic body 145.

[0046] The first magnetic body 125 is provided on the main surface 21 of the support 20 as shown in Fig. 8. The first magnetic body 125 faces and contacts the second magnetic body 145 provided on the waterstop plate 30, as well as the lower adjacent portion 140A1 and the side adjacent portion 140A2 of the first seal material 140A. As shown in Fig. 10, the surface 125D on the opposing plate surface 31A side of the first magnetic body 125 has a first contact portion 125D1 that faces and contacts the second magnetic body 145, a second contact portion 125D2 that faces and contacts the lower adjacent portion 140A1 of the first seal material 140A, and a third contact portion 125D3 that faces and contacts the side adjacent portion 140A2 of the first seal material 140A. The first contact portion 125D1 is another example of a first attracting surface of the first magnetic body 125 that is attracted to the second magnetic body 145 by a magnetic force (magnetic field) generated along the Y-axis direction (a direction intersecting the opposing plate surface).

[0047] In this way, the first contact portion 125D1 of the first magnetic body 125 is magnetically attracted to the second attracting surface 145C of the second magnetic body 145, while the second contact portion 125D2 is not attracted to the second magnetic body 145. This makes it easier to finely adjust the position when aligning the lower part of the waterstop 30 with the lower part of the support 20, and also makes it easier to remove, compared to the waterstop device 810 according to Comparative Example 1 shown in Fig. 6.

[0048] Furthermore, by providing the lower adjacent portion 140A1 of the first seal material 140A, the water stop performance of the lower portion of the waterstop plate 30 where water leakage is likely to occur can be improved. Furthermore, by providing the side adjacent portion 140A2 of the first seal material 140A, the water stop performance can be further improved. However, the side adjacent portion 140A2 of the first seal material 140A does not have to be provided as shown in Figs. 11 and 12.

[0049] <Other embodiments> The present technology is not limited to the embodiments described above and illustrated in the drawings, and for example, the following embodiments are also included in the technical scope of the present technology.

[0050] (1) The lower adjacent portion 240A1 of the first seal material 240A according to the second embodiment may be provided in an elongated shape along the bottom surface 31B (the lower end of the opposing plate surface 31A) of the waterstop 30 as shown in FIG. 13. Furthermore, the lower adjacent portion 340A1 of the first seal material 340A may be provided transversely from the left end portion 31A2 to the right end portion 31A3 of the waterstop 30 as shown in FIG. 14. In this way, the position of the second attraction surface 145C of the second magnetic body 145 in the X-axis direction can be easily adjusted to suit the installation location. For example, if the lower adjacent portions 240A1 and 340A1 of the first seal materials 240A and 340A are attached when the waterstop 30 is shipped, while the second magnetic body 145 is attached at the time of installation, it can be easily adjusted to suit the installation location.

[0051] (2) The water stop 30 may have a shape that is self-supporting, such as a bench.

[0052] (3) The waterstop 30 may be located downstream in the launching direction depending on the shape and erection method of the support 20. In that case, since a force is applied to separate the waterstop and the support by water pressure, it is preferable to use a ferromagnetic material for the second magnetic body 45, 145 and the first magnetic body 25, 125, to which a magnetic force strong enough to withstand water pressure is applied. [Explanation of symbols]

[0053] 10, 110...waterstop device, 25, 125...first magnetic body, 25A...end surface, 25C...first adhesive surface, 30...waterstop plate, 31A...opposing plate surface, 30L...lower waterstop panel (one example of extruded material), 30M...lower waterstop panel (one example of extruded material), 30U...upper waterstop panel (one example of extruded material), 35...hollow portion, 36...fitting portion, 40A, 140A, 240A, 340A...first seal material (seal material), 45, 145...second magnetic body, 45C, 145C...second adhesive surface, 47...mounting member, 125D1...first contact portion (another example of the first adhesive surface), 125D2...second contact portion

Claims

1. At least two first magnetic bodies; A water stop plate is disposed so as to close the gap between the first magnetic bodies, and prevents water from entering the vessel. A second magnetic body and a sealing material adjacent to the second magnetic body in a direction along the opposing plate surface are provided on an opposing plate surface of the water stop plate facing each of the first magnetic bodies, A water-stopping device in which the second magnetic body of the water-stopping plate is magnetically attracted to the first magnetic body.

2. The water-stopping device according to claim 1 , wherein the second magnetic body and the first magnetic body of the water-stopping plate are arranged so as to be attracted by a magnetic force generated from at least one of the first magnetic body or the second magnetic body.

3. The first magnetic body has a first attraction surface extending along a direction intersecting with the opposing plate surface of the water stop plate, The water stopping device according to claim 2 , wherein the second magnetic body has a second attraction surface that extends in a direction intersecting with the opposing plate surface of the water stopping plate and that is magnetically attracted to the first attraction surface.

4. A water-stopping device as described in claim 3, wherein an attachment member is provided on the opposing plate surface of the waterstop plate for arranging the second magnetic body so that the second adsorption surface extends along a direction intersecting the opposing plate surface of the waterstop plate.

5. The water stopping device according to claim 2 or 3, wherein the first magnetic body has an end surface facing the opposing plate surface of the water stopping plate.

6. The water-stopping device according to claim 5 , wherein the sealing material is made of foamed rubber and is interposed between the opposing plate surface of the water-stopping plate and the end surface of the first magnetic body.

7. The first magnetic body and the second magnetic body extend along a vertical direction, The sealing material is adjacent to and below the first magnetic body, the second magnetic body has a first contact portion in contact with the first magnetic body and a second contact portion in contact with the sealing material, The water stopping device according to claim 1 , wherein the first contact portion of the second magnetic body is attracted to the first magnetic body by a magnetic force.

8. The water stopping device according to claim 7 , wherein the sealing material is provided adjacent to the lower side and the lateral side of the first magnetic body on the opposing plate surface.

9. 9. The waterproof device according to claim 7, wherein the sealing material is made of foam rubber.

10. The water stop device according to claim 1 , wherein the water stop plate has a fitting portion for stacking a plurality of water stops.

11. The water stop device according to claim 1 , wherein the water stop has a hollow portion that communicates with the outside and serves as a water flow path.

12. 9. A water stopping device according to claim 1, wherein the water stop plate is made of an extruded aluminum alloy material.

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