Water cutoff device

Abstract

To prevent a water cutoff body from falling to an upstream side.SOLUTION: A water cutoff device A includes: supports 10 disposed on both sides that are horizontally spaced apart from each other; and water cutoff bodies 20 supported by the supports 10 on both sides so as to cross with an assumed water flow direction. A support body 11 of each of the supports 10 is provided with stopper parts 14 that each receive an upper engaged part 13 of the water cutoff body 20 from an upstream side when an upper part side of the water cutoff body 20 moves toward the upstream side while a lower engagement projection 22 of the water cutoff body 20 and a lower engaged part 12 of the support 10 contact with each other.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to a water stop device that prevents water from entering by closing the opening of a building or underground passage with a substantially plate-shaped water stop body when the water level rises. [Background technology]

[0002] When rising water caused by a typhoon or heavy rain enters the opening of a building or an underground passage, it can cause serious damage due to flooding. In preparation for such an event, a conventional system is known in which pillars are erected on both sides of the opening of a building or an underground passage, and plate-shaped waterstops are stored near the pillars, so that when rising water occurs, the plates are fixed to the pillars on both sides to prevent water from entering (see Patent Document 1). In this conventional technology, the bottom protrusion that is integral with the upper engagement recess can prevent the upper engagement protrusion from coming out of the upper engagement recess due to an unexpected impact, etc., thereby preventing the water stop body from falling upstream. [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 above-described conventional technology, the lower engaging recess and the upper engaging recess must be machined with high precision into a complex, horizontally facing recessed shape. [Means for solving the problem]

[0005] In view of the above problems, one aspect of the present invention is provided with the following configuration. The water stopper comprises support posts on both sides spaced apart on the left and right, and a water stopper supported by the support posts on both sides so as to intersect with the expected water flow direction, and each of the left and right support posts comprises a support body extending in the up and down direction, a lower engaged part provided on the support body, and an upper engaged part provided on the support body above the lower engaged part, and the water stopper comprises a main body plate overlapping the left and right support posts from the upstream side, and a pair of front and rear plates protruding from the main body plate on both the left and right sides and A water-stopping device comprising a lower engaging protrusion that engages with the lower engaged portion from the upstream side, and an upper engaging protrusion that protrudes from both the left and right sides of the main body plate and engages with the upper engaged portion from the upstream side, and the support body is provided with a stopper portion upstream of the upper engaged portion that receives the upper engaging protrusion from the upstream side when the upper side of the water-stopping body tilts upstream while the lower engaging protrusion and the lower engaged portion remain in contact. [Effects of the Invention]

[0006] Since the present invention is configured as described above, it is possible to prevent the water stopping body from tipping over upstream with a simple structure. [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 both supports and the water stop body separated. [Figure 3] FIG. 2 is an enlarged perspective view of a main part showing a water stop body of the water stop device. [Figure 4] FIG. 2 is an enlarged perspective view of a main part showing a support post of the waterproofing device. [Figure 5] FIG. 2 is a view of the support posts of the waterproof device as seen from the inside in the width direction between the two support posts. [Figure 6] 1A and 1B are plan views of the main parts of the water stop device, showing the water stop body being attached to the support in sequence. [Figure 7] This is a diagram showing the water stopper attached to the support pillar as viewed from the inside of the width direction between the two pillars, and the water stopper is shown by a two-dot chain line. [Figure 8] This is a diagram showing the water stop body tilting as seen from the inside of the width between the two supports, and the water stop body is shown by a two-dot chain line. [Figure 9] This is a view from the inside of the width between the two supports, showing how the water stop body continues to tilt, and the water stop body is shown by a two-dot chain line. [Figure 10] This is a view from the inside of the width between the two supports, showing how the water stop body continues to tilt, and the water stop body is shown by a two-dot chain line. [Figure 11] FIG. 10 is a perspective view showing a support pillar to which another example of a stopper portion is attached, with an enlarged exploded perspective view of the main portion shown in the upper right portion. 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> Each of the left and right pillars 10, 10 comprises a pillar body 11 that is arranged approximately perpendicular to the lower fixed surface F and extends in the vertical direction, a lower engaged portion 12 that is provided at the lower end of the pillar body 11, and an upper engaged portion 13 that is provided above the lower engaged portion 12 on the pillar body 11 (see Figures 4 and 5). Here, 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 pillars 10, 10 on both sides are fixed to both sides of an opening in the body of a building, an underground passage, or the like.

[0011] 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.

[0012] The support pillar body 11 is made up of a base pillar 11a that is fixed to the vertical edge of the opening in the main body, and a support pillar 11b that protrudes upstream from the base pillar 11a and supports the water stop body 20. The cross section of the support pillar body 11 is generally L-shaped and the support pillars 11b extend vertically (see FIG. 4). The support pillar body 11 is formed long so as to straddle the multiple stacked water stop bodies 20 in the vertical direction. In the illustrated example, the support body 11 is composed of two members, a base column 11a and a support column 11b, but other examples of this support body 11 may include an integrated member having an approximately L-shaped cross section, or may be composed of three or more members.

[0013] 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.

[0014] The support column 11b is formed by bending a hard metal plate material, for example, so as to have an elongated, generally U-shaped cross section extending in the vertical direction. A lower engaged portion 12 and an upper engaged portion 13, which will be described later, are attached to the inner surface of this support column 11b. In addition, in this support pillar 11b, the space between the lower engaged portion 12 and the upper engaged portion 13 opens inward in the width direction between the two pillars (see FIG. 4). In other words, the space S that continues 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.

[0015] The support pillar 11b has a plate-shaped portion 11b1 that is in a direction that intersects with 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.

[0016] 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. The stopper portion 14 is positioned slightly upstream of the upper engaged portion 13, overlapped with the inner surface of the plate-like portion 11b1, and attached to the support column 11b of the support column main body 11 so that its position can be adjusted in the vertical direction.

[0017] More specifically, the stopper portion 14 is configured in an angle shape having one piece that overlaps the inner surface of the plate-shaped portion 11b1 and the other piece that overlaps the inner surface 11b2 that intersects with the plate-shaped portion 11b1 in the support pillar 11b (see Figure 4). This stopper portion 14 is attached to the support body 11 so that its position can be adjusted by a predetermined amount in the vertical direction by means of a vertically long hole provided on the inner surface 11b2 and a fastener 14a (e.g., a bolt and nut) inserted into this long hole.

[0018] 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.

[0019] 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.

[0020] 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 FIGS. 4 and 7) is provided on the inclined bottom surface portion 12b midway toward the downstream side.

[0021] 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.

[0022] The inclined bottom surface portion 12b continues obliquely downward further downstream than the concave curved surface portion 12b1 and is connected to a substantially horizontal bottom surface portion.

[0023] 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 Figures 4 and 7).

[0024] The inclined top surface portion 13a guides the upper engaging protrusion 23 diagonally downward downstream when the water stop body 20 is fitted between the two supports 10, 10 from the upstream side. As a result, the vertical watertight material 26 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.

[0025] 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.

[0026] 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 7).

[0027] The engaged block 12X is formed as an integral 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.). In the illustrated example, the engaged block 12X is an integral member, but as another example of the engaged block 12X, it is also possible to use a mode in which a plurality of members are joined together integrally.

[0028] <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, upper engaging protrusions 23, 23 protruding to the left and right sides 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 Figures 1 to 3).

[0029] 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.

[0030] 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.

[0031] In the illustrated example, horizontal positioning means 21a are provided on the upper and lower ends of each of the plurality of water stopping bodies 20 so that the stacking order of the plurality of water stopping bodies 20 is not restricted. As another example, it is also possible to omit the lateral positioning means 21a on the uppermost end side and the lateral positioning means 21a on the lowermost end side of the plurality of water stopping bodies 20 that are piled up.

[0032] 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. 4). 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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).

[0040] 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.

[0041] The portion of this vertical watertight material 26 near the lower end functions as a pressure contact portion 26a (stopper means) that is strongly pressed against the watertight body receiving surface 11a1 when the upper engaging protrusion 23 overcomes the stopper portion 14 downstream and the upper side of the watertight body 20 tilts upstream (see Figure 10).

[0042] The lateral watertight member 27 is provided at the lower end of the main body plate 21 and extends horizontally. The lateral watertight material 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 material 27 are in contact with second auxiliary watertight materials 29, which will be described later, to improve watertightness (see FIG. 3). 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.

[0043] 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.

[0044] 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 3).

[0045] <Action and effect> Next, the characteristic functions and effects of the waterproofing device A having the above-described configuration will be described in detail. When attaching the water stop body 20 to the left and right supports 10, 10, as shown in Figure 7, the lower side of the water stop body 20 is pushed downstream, and the rolling member 22b of the lower engaging protrusion 22 is placed on the inclined bottom surface portion 12b of the lower engaged portion 12 and fitted into the concave curved surface portion 12b1.

[0046] Next, the upper part of water stop body 20 is tilted toward the upstream side, whereupon the upper part of water stop body 20 rotates toward the downstream side with rolling member 22b as a fulcrum, and upper engaging protrusion 23 engages with upper engaged portion 13. Specifically, the rolling member 23b of the upper engaging protrusion 23 rolls diagonally downward downstream along the inclined top surface 13a of the upper engaged portion 13, and is pushed downward by the locking top surface 13b. During these processes, the vertical watertight material 26 is pressed against the waterstop receiving surface 11a1 of the pillar body 11, and the horizontal watertight material 27 is pressed against the lower immovable part (the lower immovable surface F or the upper end of the lower pillar 10).

[0047] After this, if the upper side of the water stop body 20 tilts upstream due to an unexpected impact or the like while the latch device 25 is not engaged, the upper engaging protrusion 23 will come off the engaging top surface portion 13b toward the upstream side (see Figures 8 to 9). Then, due to the tilting, the vertical watertight material 26 and the horizontal watertight material 27 restore from their contracted state, and the lower engaging protrusion 22, while remaining in contact with the inclined bottom surface portion 12b, rolls the rolling member 22b, causing it to move slightly diagonally upward toward the upstream side (see Figure 9(c)). Thereafter, as the water stop body 20 further tilts, the rolling member 23b of the upper engaging projection 23 comes into contact with the stopper portion 14, and the water stop body 20 stops tilting (see FIG. 9(d)).

[0048] If, due to variations in vertical dimensions caused by stacking multiple water-stopping bodies 20, the upper engaging protrusion 23 is cushioned by the stopper portion 14 when engaging with the upper engaged portion 13 from the upstream side, or if the rolling member 23b overcomes the stopper portion 14 when the water-stopping body 20 tilts upstream, the fastening device 14a (see Figure 4) can be loosened to adjust the position of the stopper portion 14 in the vertical direction.

[0049] Furthermore, in the unlikely event that the upper engaging protrusion 23 overcomes the stopper portion 14 and the upper side of the water stop body 20 tilts further upstream, the pressure contact portion 26a at the lower end of the water stop body 20 will be pressed firmly against the water stop body receiving surface 11a1 of the support 10, increasing the frictional force between the pressure contact portion 26a and the water stop body receiving surface 11a1, while the lower engaging protrusion 22 of the water stop body 20 will be pressed against the inclined bottom surface portion 12b of the lower engaged portion 12, and the tilting will be stopped due to the balance of forces caused by the pressure contact at these two points and the increase in the frictional force (see Figure 10).

[0050] Note that Figure 10 shows the effect of stopping the tilting of the lowest water stop body 20 toward the upstream side, but the water stop body 20 in the middle and the water stop body 20 at the top can also be stopped from tilting toward the upstream side in the same way.

[0051] In this way, with the water stop device A of this embodiment, when the latch device 25 is not functioning, for example due to forgetting to fasten it, the water stop bodies 20 can be doubly prevented from falling upstream due to vibration, impact, etc. by two types of stopper means (stopper portion 14 and pressure contact portion 26a) with a simple structure.

[0052] Furthermore, as mentioned above, if the tilting does not stop even when the pressure-contact portion 26a is pressed against the support 10 and the lower engaging protrusion 22 is pressed against the lower engaged portion 12, it can be determined that the vertical watertight material 26 that constitutes the pressure-contact portion 26a has deteriorated over time and needs to be replaced.

[0053] Furthermore, according to the water stopping device A of this embodiment, the space S between the lower engaged portion 12 and the upper engaged portion 13 is continuous in the vertical direction, so that foreign matter such as dead leaves and garbage is less likely to become clogged in the lower engaged portion 12 or the lower engaged portion 13. Furthermore, since 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 supports 10, 10 (see Figure 4), even if foreign matter accumulates in the space S, it is easy to remove the foreign matter.

[0054] <Another example of a stopper part> According to the above embodiment, the stopper portion 14 is formed in an angled shape, but this stopper portion is not limited to that of the above embodiment as long as it is configured to receive the upper engaging protrusion 23 from the upstream side when the upper side of the water stop body 20 tilts toward the upstream side.

[0055] For example, a support 10' shown in FIG. 11 has the above-mentioned structure in which the stopper portion 14 is replaced with a stopper portion 14'. The stopper portion 14' is formed in a plate shape that overlaps the plate-shaped portion 11b1, and has a vertically elongated hole 14x. This stopper portion 14' is superimposed on the back surface of the plate-shaped portion 11b1 and fixed by a screw-shaped member 14b inserted from the front surface side (upstream side) into the plate-shaped portion 11b1 and the long hole 14x, and a nut-shaped member 14c screwed onto the tip side of this screw-shaped member 14b. According to this alternative example, the position of the stopper portion 14 can be adjusted in the vertical direction by loosening or tightening the screw-like member 14b from the upstream side.

[0056] <Other variations> According to the above embodiment, multiple stopper portions 14 whose positions can be adjusted in the vertical direction are provided corresponding to multiple upper engaged portions 13, but as another example, at least one stopper portion 14 may be provided corresponding to the uppermost upper engaged portion 13, and the other stopper portions 14 may be omitted. According to this alternative example, when the height positions of the upper engaging protrusions 23 vary due to the stacking of a plurality of water stopping bodies 20, the position of the stopper portion 14 can be adjusted to accommodate this variation.

[0057] As another example, it is possible to omit all of the stopper portions 14 shown in the drawings, and have the upward protruding edge portion 11b13 (see Figure 4) that forms the opening 11b12 in the plate-shaped portion 11b1 function as a stopper portion that receives the upper engaging protrusion 23 from the upstream side.

[0058] According to the above embodiment, the lower end portion of the vertical watertight material 26 is the pressure-welded portion 26a. However, as another example of this pressure-welded portion 26a, it is also possible to provide it as a separate member from the vertical watertight material 26.

[0059] According to the above embodiment, as a preferred example, the pressure contact portion 26a is formed from an elastic material, but this pressure contact portion 26a can also be made of a non-elastic material if it is made to have the above-mentioned stopper function (see Figure 10) due to friction against the water-stop receiving surface 11a1, etc.

[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] According to the above embodiment, the lateral alignment means 21a is a seal-like member provided on the upper and lower central ends of each main body plate 21, but other examples of this lateral alignment means 21a include painted parts and engraved marks. Furthermore, as another example of the lateral positioning means 21a, it may be positioned at a position other than the center (to the right or left, etc.) so long as the positions in the lateral width direction of the water stopping bodies 20, 20 adjacent to each other above and below are approximately the same.

[0062] Furthermore, as another example of the lateral alignment means 21a, it is also possible to configure the lateral alignment by fitting a convex portion protruding from one of the vertically adjacent main body plates 21, 21 into a concave portion provided on the other.

[0063] 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.

[0064] <Summary> As described above, the above embodiments disclose the following inventions. (1) The device comprises support columns on both sides spaced apart on the left and right, and a water stop body supported by the support columns on both sides so as to intersect with the expected direction of water flow, Each of the left and right support columns includes a support column body extending in the up-down direction, a lower engaged portion provided on the support column body, and an upper engaged portion provided on the support column body above the lower engaged portion, The water stopping body comprises a main body plate that overlaps the left and right support posts from the upstream side, lower engaging protrusions that protrude from the main body plate to both the left and right sides and engage with the lower engaged parts from the upstream side, and upper engaging protrusions that protrude from the main body plate to both the left and right sides and engage with the upper engaged parts from the upstream side, The water-stopping device is characterized in that the support body is provided with a stopper portion upstream of the upper engaged portion, which receives the upper engaging protrusion from the upstream side when the upper side of the water-stopping body tilts upstream while the lower engaging protrusion and the lower engaged portion remain in contact (see Figures 1 to 10). (2) The lower engaged portion is provided with an inclined bottom surface portion that guides the lower engaging protrusion obliquely downward toward the downstream side, The stopper portion is configured to receive the upper engaging protrusion from the upstream side when the upper side of the water stopping body falls toward the upstream side while the lower engaging protrusion remains in contact with the inclined bottom surface portion (see Figure 9). (3) A transverse watertight material is provided between the main plate and the lower fixed portion so as to be elastically compressed; The water-stopping device described in (1) or (2) (see Figures 8 to 9) is characterized in that the stopper portion is configured to receive the upper engaging protrusion from the upstream side when the water-stopping body moves upward due to the elastic restoration of the lateral water-tight material. (4) The waterproof device according to any one of (1) to (3) above, characterized in that the stopper portion is provided so that its position can be adjusted in the vertical direction (see FIG. 4). (5) The water stopping bodies are stacked one on top of the other, The support pillar body is provided so as to straddle the plurality of stacked water stopping bodies in the vertical direction, The water stopping device according to any one of (1) to (4) (see FIG. 5), wherein a plurality of sets of the lower engaged portion and the upper engaged portion are provided to correspond to a plurality of the water stopping bodies. (6) The water stopping device described in any one of (1) to (5) (see Figure 4) is characterized in that the support body has a plate-shaped portion that intersects with the flow direction upstream of the upper engaged portion, and this plate-shaped portion has an opening for inserting the upper engaging protrusion from the upstream side, and the stopper portion is provided at the lower edge portion of the opening. [Explanation of symbols]

[0065] 10, 10’: Support columns 11: Support column body 11a: Base column 11a1: Water stop body receiving surface 11b: Support column 11b1: Plate-like part 11b11, 11b12: Opening 12: Lower engaged part 12b: Inclined bottom surface part 12b1: Concave curved surface part 13: Upper engaged part 13a: Inclined top surface part 13b: Locking top surface part 14, 14’: Stopper part 20: Water stop body 21: Body plate 22: Lower engaging projection 22b: Rolling member 23: Upper engaging projection 23b: Rolling member 26: Vertical watertight material 26a: Pressing contact part 27: Horizontal watertight material A: Water stop device S: Space

Claims

1. The device comprises support columns on both sides spaced apart on the left and right, and a water stop body supported by the support columns on both sides so as to intersect with the expected direction of water flow, Each of the left and right support columns includes a support column body extending in the up-down direction, a lower engaged portion provided on the support column body, and an upper engaged portion provided on the support column body above the lower engaged portion, The water stopping body comprises a main body plate that overlaps the left and right support posts from the upstream side, lower engaging protrusions that protrude from the main body plate to both the left and right sides and engage with the lower engaged parts from the upstream side, and upper engaging protrusions that protrude from the main body plate to both the left and right sides and engage with the upper engaged parts from the upstream side, A water-stopping device characterized in that the support body is provided with a stopper portion upstream of the upper engaged portion, which receives the upper engaging protrusion from the upstream side when the upper side of the water-stopping body tilts upstream while the lower engaging protrusion and the lower engaged portion remain in contact.

2. The lower engaged portion is provided with an inclined bottom surface portion that guides the lower engaging protrusion obliquely downward toward the downstream side, A water-stopping device as described in claim 1, wherein the stopper portion is configured to receive the upper engaging protrusion from the upstream side when the upper side of the water-stopping body falls toward the upstream side while the lower engaging protrusion remains in contact with the inclined bottom surface portion.

3. A transverse watertight material is provided between the main plate and the lower fixed portion so as to be elastically compressed; The water-stopping device according to claim 1, characterized in that the stopper portion is configured to receive the upper engaging protrusion from the upstream side when the water-stopping body moves upward due to the elastic restoration of the lateral water-tight material.

4. 2. The waterproof device according to claim 1, wherein the stopper portion is provided so that its position can be adjusted in the vertical direction.

5. The water stopping bodies are stacked one on top of the other, The support pillar body is provided so as to straddle the plurality of stacked water stopping bodies in the vertical direction, 2. The water stop device according to claim 1, wherein a plurality of pairs of the lower engaged portion and the upper engaged portion are provided corresponding to a plurality of the water stop bodies.

6. A water stopping device as described in any one of claims 1 to 5, characterized in that the support body has a plate-shaped portion that intersects the flow direction upstream of the upper engaged portion, and this plate-shaped portion has an opening for inserting the upper engaging protrusion from the upstream side, and the stopper portion is provided at the lower edge portion of the opening.

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