Water cut-off plate and water cut-off plate set

Abstract

The present invention provides a water cut-off plate capable of constructing a water cut-off wall by easily arranging the water cut-off wall in a short time in an arbitrary place such as a road or an opening part of a building in which the entry of a flood occurs or is expected. A water cut-off plate according to the present invention is a water cut-off plate A capable of constructing a water cut-off wall by connecting the water cut-off wall in a lateral direction via a coupling member B, the water cut-off plate A comprising: a water cut-off plate body A2 that includes a bottom part 1 placed on a water cut-off wall construction surface E for constructing a water cut-off wall F, and a standing part 2 erected upward from a rear part of the bottom part 1; and a connection part that includes an upper connection part formed in an upper part of the water cut-off plate body A2 and detachably connectable to an upper part of the coupling member B, and a lower connection part formed in a lower part of the water cut-off plate body A2 and detachably connectable to a lower part of the coupling member B.

Description

Waterstops and waterstop sets

[0001] The present invention relates to a waterstop and a waterstop set using the waterstop.

[0002] In recent years, heavy rainfall and other events have caused large amounts of rainfall in a short period of time, causing rivers to overflow, resulting in floods, with floodwaters entering roads and causing them to become submerged, or floodwaters entering buildings. In order to prevent such floodwater from entering, it has been proposed to install waterstops.

[0003] Patent document 1 proposes a waterstop plate that is constructed by connecting multiple plates in the vertical direction, and that comprises an upright plate-shaped waterstop plate body that has an opening abutment surface that abuts the front edge of the building opening and a ground abutment surface that abuts the ground, and a downward pressing mechanism that presses the waterstop plate body from above downward, and in which upright surfaces are formed on the front and rear outer edges of the other plate end of one of the two plates connected in the vertical direction, into which one plate end of the other plate is fitted.

[0004] Japanese Patent Application Laid-Open No. 2021-14723

[0005] However, the above-mentioned waterstop is used by placing the waterstop body in an opening in a building, and has the problem that it can only be used in openings in buildings for which it is intended to be used, and cannot be placed in any location where floodwater occurs.

[0006] Furthermore, the above-mentioned waterstop has the problem that it takes time to install the waterstop body at the opening of the building, and the waterstop cannot be installed in a short time.

[0007] The present invention provides a waterstop plate and a waterstop set using this waterstop plate that can be easily arranged in a short time at any location, such as a road or building opening, where intrusion of floodwater or rainwater occurs or is expected, to construct a waterstop wall, thereby generally preventing the intrusion of rainwater or floodwater, etc., and ensuring evacuation routes, etc.

[0008] The waterstop plate of the present invention is a waterstop plate that can be connected in the left-right direction via connecting members to construct a waterstop wall, and is characterized by having a waterstop plate main body including a bottom portion that is placed on the waterstop wall construction surface on which the waterstop wall is constructed, and an upright portion that stands upright from the rear of the bottom, and connecting portions that include an upper connecting portion formed on the top of the waterstop plate main body and removably connectable to the top of the connecting member, and a lower connecting portion formed on the bottom of the waterstop plate main body and removably connectable to the bottom of the connecting member.

[0009] The waterstop set of the present invention is a waterstop set comprising waterstops and connecting members that connect the waterstops to each other, wherein the waterstops comprise a waterstop body including a bottom portion that is placed on the waterstop wall construction surface on which the waterstop wall is constructed, and an upright portion that stands upright from the rear of the bottom, and connecting portions including an upper connecting portion formed on the top of the waterstop body and removably connectable to the top of the connecting member, and a lower connecting portion formed on the bottom of the waterstop body and removably connectable to the bottom of the connecting member.

[0010] In the following description, when referring to structural names that have the same structural name and are distinguished as "left side" and "right side," or "front side" and "rear side," they may be abbreviated to "left and right" or "front and rear," respectively.

[0011] The waterstop plate of the present invention can easily construct a waterstop wall by simply arranging multiple waterstop plates in the left-right direction on the waterstop wall construction surface and connecting the waterstop plates arranged in the left-right direction to each other via connecting members described below.

[0012] As described above, the waterstop of the present invention is a structure in which waterstops arranged in the left-right direction are connected in a row in the left-right direction via connecting members, and does not require any additional equipment for installing the waterstops at the location where the waterstop wall is to be constructed. Therefore, the waterstop of the present invention allows the waterstop wall to be constructed at a desired location without having to choose a specific location for construction.

[0013] The waterstop of the present invention connects the waterstop and connecting members at the top and bottom, so that the waterstop and connecting members can be firmly connected and integrated to construct a waterstop wall, and the waterstop wall can be stably constructed in a predetermined position.

[0014] In the above-mentioned waterstop, if the upright portion has a connecting protrusion formed at its upper end facing rearward, and the upper connection portion is formed at each of the left and right ends of the connecting protrusion, the pressure of water flowing onto the bottom of the waterstop can be prevented from causing the upper connection portion formed on the upright portion to displace upward, thereby maintaining the connection between the waterstop and the connecting member more firmly and constructing an even stronger waterstop wall.

[0015] In the waterstop, the upper connecting portion is configured to be detachably connectable to a second connecting portion formed on the upper part of the connecting member. For example, if the upper connecting portion of the waterstop is a columnar protrusion that can be detachably inserted into a connecting recess formed on the upper part of the connecting member, the pressure of water flowing onto the bottom of the waterstop can more firmly maintain the connection between the waterstop and the connecting member, thereby constructing an even stronger waterstop wall.

[0016] In the waterstop, the lower connecting portion is configured to be detachably connectable to a first connecting portion formed at the lower part of the connecting member. For example, if the lower connecting portion of the waterstop is a connecting recess or connecting hole that can be detachably inserted into a connecting protrusion formed at the lower part of the connecting member, the pressure of water flowing onto the bottom of the waterstop can more firmly maintain the connection between the waterstop and the connecting member, thereby constructing an even stronger waterstop wall.

[0017] In the above-mentioned waterstop, when the waterstop body is formed to protrude from the left and right sides of the upper surface of the bottom and has left and right protrusions extending from the front end of the bottom toward the left and right ends of the rear end of the bottom, water that initially flows into the upper bottom surface of the waterstop can be guided toward the left and right sides of the bottom of the waterstop, and the pressure of the water flowing into the bottom of the waterstop can be smoothly applied to the left and right sides of the bottom of the waterstop, resulting in a stronger connection between the upper and lower connecting parts formed on the left and right ends of the waterstop and the upper and lower parts of the connecting member, and a strong waterstop wall can be constructed.

[0018] In the above-mentioned waterstop, when the waterstop body has a central protrusion formed protruding from the center of the upper surface of the bottom, which is higher than the left and right protrusions and extends from the front end of the bottom to the center of the rear end of the bottom, the central protrusion divides the water that initially flows into the bottom of the waterstop body and guides it toward the left and right sides of the bottom of the waterstop body, so that the pressure of the water flowing into the bottom of the waterstop can be smoothly applied to the left and right sides of the bottom of the waterstop, resulting in a stronger connection between the upper and lower connecting parts formed on the left and right ends of the waterstop and the upper and lower parts of the connecting member, and an even stronger waterstop wall can be constructed.

[0019] In the above-mentioned waterstop, if the central protrusion portion increases in width from the front to the rear, it smoothly guides the water that initially flows into the bottom of the waterstop body to the left and right sides of the bottom as it moves rearward, allowing the pressure of the water flowing into the bottom of the waterstop to be smoothly applied to the left and right sides of the bottom of the waterstop, thereby constructing a strong waterstop wall.

[0020] In the above-mentioned waterstop, when the lower connection portion is formed at the connection portion between the bottom portion and the upright portion, it can withstand the pressure of water flowing into the bottom of the waterstop and the pressure of water that collides with the upright portion of the waterstop and is blocked, making the connection between the lower connection portion of the waterstop and the lower part of the connecting member stronger, and allowing the construction of a stronger waterstop wall.

[0021] If the above-mentioned waterstop plate has a gripping portion formed on the upright portion for gripping the waterstop plate, the waterstop plate can be easily placed in a predetermined position to smoothly construct a waterstop wall at a desired position, and the waterstop plate can be easily transported to the waterstop wall construction surface using its gripping portion to construct the waterstop wall.

[0022] Furthermore, in the above-mentioned waterstop board, if the center of gravity of the waterstop board body including the bottom and upright portions is configured to be located on the bottom side, the waterstop board can be kept free-standing even when connecting the waterstop boards in a row in the left-right direction, and a waterstop wall can be easily constructed using the waterstop boards.

[0023] The waterstop set includes the waterstop plates and connecting members that connect the waterstop plates together, so that the waterstop plates arranged in the left-right direction can be stably connected in a row in the left-right direction via the connecting members, making it easy to construct a waterstop wall.

[0024] Furthermore, since the waterstop and connecting member connect the upper and lower connection parts to the upper and lower parts of the connecting member, respectively, a waterstop wall constructed using the waterstop and connecting member has excellent strength, reliably maintains its constructed shape, and can be stably positioned in its designated position regardless of water pressure.

[0025] 1 is a perspective view of a waterstop of the present invention; FIG. 2 is a side view of a waterstop; FIG. 3 is an enlarged view of an upper connection part of the waterstop; FIG. 4 is an enlarged view of an upper connection part of the waterstop; FIG. 5 is a perspective view of the waterstop from below; FIG. 6 is a perspective view of a connecting member; FIG. 7 is a perspective view of a connecting member; FIG. 8 is a perspective view of a fixing member; FIG. 9 is a perspective view of the fixing member from below; FIG. 10 is a perspective view of an end panel; FIG. 11 is a perspective view showing how to connect a waterstop and an end panel via a connecting member; FIG. 12 is a perspective view showing how to connect a waterstop to a connecting member; FIG. 13 is a perspective view showing how to connect a waterstop to a connecting member; FIG. 14 is a perspective view of an example of a waterstop wall; FIG. 15 is a plan view of another example of a waterstop wall.

[0026] An example of a waterstop of the present invention will be described with reference to the drawings. As shown in Figures 1 to 5, the waterstop A has a flat trapezoidal bottom 1 and an upright portion 2 integrally formed diagonally upward from the entire length of the rear portion of the bottom 1 (preferably the rear edge portion) and is formed symmetrically.

[0027] The bottom 1 is configured so that it can be placed with its underside in contact with the water-stop wall construction surface E, and the underside is integrally provided with a gasket material (not shown) that deforms to conform to the unevenness formed on the water-stop wall construction surface E and generally prevents water leakage from occurring between the bottom 1 and the water-stop wall construction surface E.

[0028] The bottom 1 is formed in a flat trapezoidal shape with the short side facing forward, and as will be described later, even when adjacent waterstops A, A are connected at an angle (for example, 120°) via connecting member B, the bottoms 1, 1 of the waterstops A, A do not overlap, and the bottom 1 of each waterstop A is placed entirely on the waterstop wall construction surface E, generally preventing water leakage from occurring between the bottom 1 of the waterstop A and the waterstop wall construction surface E.

[0029] The waterstop body A2 has a generally L-shaped side surface and is formed by a bottom portion 1 and an upright portion 2 extending upward from the entire length of the rear edge of the bottom portion 1. In detail, the upright portion 2 is formed at the rear edge of the bottom portion 1, slanting diagonally backward and upward from the entire length of the bottom portion 1.

[0030] A connecting protrusion 3 is provided at the upper end of the upright portion 2 of the waterstop body A2, protruding rearward (preferably horizontally) along its entire length. First support pieces 31, 31, each having a generally V-shaped planar configuration, are formed downward at the left and right ends of the connecting protrusion 3. The left and right first support pieces 31 are bent in a generally V-shaped planar configuration so that their bent portions protrude outward. The central portion of each first support piece 31 in the front-to-rear direction extends downward to form an insertion piece 311. The protruding height of the insertion piece 311 roughly matches the height of the support frame portion 51 of the connecting member B, which will be described later. A columnar protrusion 312 having a certain height is provided at the lower end of the central portion (bent portion) of the insert piece 311 in the front-to-rear direction, protruding downward as an upper connecting portion. The shape of the upper connecting portion is not particularly limited as long as it can be connected to the second connecting portion 52A of the column portion 5 of the connecting member B, which will be described later.

[0031] A second support piece 32, which is concave inward and has a planar arc shape, is provided at the left and right ends of the connecting protrusion 3 so as to protrude downward, facing the first support piece 31. A connection space 33, which is planar arc shape and opens in the front-rear and downward directions, is formed between the insertion piece 311 of the first support piece 31 and the second support piece 32, into which the support frame 51 of the connecting member B can be inserted and removed.

[0032] A planar arc-shaped fixing groove 34 is formed on the upper surface of the left and right ends of the connecting protrusion 3, slightly inward from the left and right ends, by recessing it downward so that it is positioned above the connection space 33.

[0033] The connection space portion 33 of the waterstop A is fitted from above into the support frame portion 51 of the connecting member B, and the columnar protrusion 312, which is the upper connection portion of the waterstop A, is inserted into the connection recess 52 of the connecting member B.The fixing groove portion 34 is then pressed toward the connecting member B by the fixing member C to fix it, so that the waterstop A and the connecting member B are connected at a predetermined position so that they cannot be displaced relative to each other.

[0034] In addition, a rear protrusion 35 is formed downward along the entire length of the rear end of the connecting protrusion 3 of the water stop plate A, and a gripping portion 351 is formed in the center of the rear protrusion 35, so that the water stop plate A can be easily carried by gripping the gripping portion 351.

[0035] Additionally, multiple lower connection portions A1, A1 (two in FIG. 1 ) are formed at each of the left and right ends of the waterstop A at the connection portion between the bottom portion 1 and the upright portion 2. The lower connection portions A1 are composed of a connection wall portion A10, which bulges downwardly at the connection portion between the bottom portion 1 and the upright portion 2 of the waterstop A, and a connection hole A11 formed in the lower end (bottom) of this connection wall portion A10 and penetrates vertically. Each of the connection holes A11 of the lower connection portion A1 of the waterstop A is configured so that a connection protrusion 41 of the connecting member B, described below, can be inserted from below. Note that the connection holes A11 of the lower connection portion A1 need not be penetrating vertically as long as the connection protrusion 41 of the connecting member B can be inserted from below to connect the connection. They may also be connection recesses with closed upper ends.

[0036] As will be described later, the connection protrusions 41 of the connecting member B are arranged at regular intervals on an imaginary circumference. The connection holes A11, A11 of the multiple lower connection portions A1, A1 on the left or right side are formed on an imaginary circumference of the same diameter as the imaginary circumference on which the connection protrusions 41 of the connecting member B are formed, at intervals equal to the intervals between the connection protrusions 41, 41 of the connecting member B.

[0037] As described above, the bottom 1 of the waterstop A is formed in a trapezoidal planar shape that gradually widens from the front to the rear. A central protrusion 11 is formed in the center of the top surface of the bottom 1, extending from the front end to the rear end. The central protrusion 11 has a convex arc-shaped cross section that gradually increases in height from the left and right ends to the center in the width direction (left-right direction). Furthermore, the central protrusion 11 is formed so that the opposing portions in the left-right direction are higher than the left and right protrusions 12, 13, which will be described later. Therefore, water that initially flows onto the bottom 1 of the waterstop A is diverged to the left and right, and is guided by the left and right protrusions 12, 13 toward the left and right ends at the rear of the bottom 1 of the waterstop A. A plurality of ribs 14 are formed between the central protrusion 11 and the opposing left and right protrusions 12, 13, and between the central protrusion 11 and the left and right edge portions 1a, 1a of the bottom 1, but none of the plurality of ribs 14 reaches the upper ends of the central protrusion 11, the left and right protrusions 12, 13, or the left and right edge portions 1a, 1a of the bottom 1, and therefore do not generally hinder water that initially flows onto the bottom 1 from flowing toward the left and right rear ends of the bottom 1. Furthermore, the rear end 11a of the central protrusion 11 extends to the upper end of the upright portion 2, and this extended portion is also formed so that it gradually becomes higher in the width direction (left and right direction) from the left and right ends to the center, so that water that flows onto the rear end of the bottom 1 of the waterstop A is diverted to the left and right, and large water pressure is applied to the left and right rear ends of the bottom 1, further strengthening the connection between the waterstop A and the connecting member B.

[0038] At the left and right ends of the upper surface of the bottom 1 of the water stop A, left and right protrusions 12, 13 are formed along the left and right edges of the bottom 1 from the front end to the base end of the upright portion 2.

[0039] The left protrusion 12 formed on the upper surface of the bottom 1 has its rear end 121 passing between the left connection holes A11, A11 and reaching the base end of the standing portion 2. Similarly, the right protrusion 13 formed on the upper surface of the bottom 1 has its rear end 131 passing between the right connection holes A11, A11 and reaching the base end of the standing portion 2.

[0040] In this way, the rear ends 121, 131 of the left and right protrusions 12, 13 reach the base end of the upright portion 2 through a pair of connecting holes A11, A11 formed at the left and right ends of the connecting portion between the bottom portion 1 and the upright portion 2, thereby allowing water that initially flows onto the bottom 1 to flow in the direction of the left and right connecting holes A11, A11. The pressure of the water that flows into the left and right connecting holes A11, A11 at the connecting portion between the bottom portion 1 and the upright portion 2 allows the waterstop A and the connecting member B to be firmly connected and integrated.

[0041] The waterstop A can be connected together in the left-right direction via a connecting member B. As shown in Figure 6, the connecting member B has a flat, disk-shaped base 4 and a truncated cone-shaped column 5 protruding from the center of the top surface of the base 4. When the waterstop A is connected to the connecting member B, the top surface of the base 4 and the outer peripheral surface of the column 5 of the connecting member B are tightly and watertightly connected to the opposing rear portion of the bottom 1 and left and right end surfaces of the upright portion 2 of the waterstop A via a gasket (not shown) attached to the waterstop A as necessary, preventing water leakage from the connection between the waterstop A and the connecting member B.

[0042] The upper surface of the annular outer periphery of the base portion 4, which protrudes outward from the base end outer periphery of the column portion 5, is formed with connecting recesses 40 that bulge downward at regular intervals along the entire circumference along the outer periphery of the base portion 4, into which the connecting wall portion A10 of the lower connecting portion A1 of the waterstop A can be fitted, and cylindrical connecting protrusions 41 protruding upward are provided on the bottom surface of this connecting recess 40 as first connecting portions 41A. The connecting protrusions 41 are arranged circumferentially at regular intervals around the entire circumference on the upper surface of the outer periphery of the base portion 4. The diameter of the connecting protrusions 41 gradually decreases from the bottom to the top, and the top end is formed into a convex arc surface so that they can be easily inserted from below into the connecting holes A11, A11, which are the lower connecting portions of the waterstop A.

[0043] A circular support frame 51 of a certain height is provided on the outer periphery of the upper end of the column 5 of the connecting member B so as to protrude upward. The height of the support frame 51 is formed to roughly match the protruding height of the insertion piece 311 of the first support piece 31 of the waterstop A.

[0044] A plurality of connection recesses 52 are recessed as second connection portions 52A on the outer peripheral edge of the upper end surface of the pillar portion 5 of the connecting member B. The plurality of connection recesses 52 are arranged in a circle at regular intervals along the inner peripheral surface of the annular support frame portion 51. The connection recesses 52 of the connecting member B are configured so that the pillar-shaped protrusions 312 of the first support pieces 31 of the waterstop A can be inserted from above. The pillar-shaped protrusions 312 of the waterstop A are configured to be fitted into the connection recesses 52 in a generally fixed state.

[0045] A cylindrical fixing portion 53 is provided protruding upward in the center of the upper end surface of the pillar portion 5 of the connecting member B, i.e., in the portion surrounded by the annular connecting recess 52. A fixing member C is detachably attached to the fixing portion 53 of the connecting member B, and the waterstop A and the connecting member B are connected and integrated.

[0046] 8 and 9, the fixing member C has a cylindrical fixing member main body 6 with a through hole 60 that penetrates vertically in the center. A cylindrical fixing piece 62 protrudes downward from the upper open end of the through hole 60 in the fixing member main body 6 of the fixing member C. L-shaped locking grooves 53a are engraved on the outer circumferential surface of the fixing portion 53 of the connecting member B with a phase difference of 180° (on surfaces located radially opposite each other on the outer circumferential surface of the fixing portion 53 of the connecting member B). The locking grooves 53a have a first groove 53a-1 that extends vertically (preferably vertically) and a second groove 53a-2 that is continuous with the lower end of the first groove 53a-1 and extends radially (preferably horizontally) around the fixing portion 53 of the connecting member B. On the inner peripheral surface of the fixed piece 62, locking projections 62a, 62a are provided with a phase difference of 180° (surfaces facing each other radially on the inner peripheral surface of the fixed piece 62) that can be freely engaged and disengaged with L-shaped locking groove portions 53a formed on the outer peripheral surface of the fixed portion 53 of the connecting member B.

[0047] The lower half of the fixing member body 6 of the fixing member C is expanded in diameter to form an expanded diameter portion 61. The annular expanded diameter portion 61 is configured to be inserted into the fixing groove portion 34 of the waterstop A when attached to the fixing portion 53 of the connecting member B, and to press the bottom portion 341 of the fixing groove portion 34 toward the support frame portion 51 of the connecting member B.

[0048] The planar arc-shaped connection space 33 of waterstop A is fitted from above onto the support frame 51 of connecting member B, and the columnar protrusion 312, which is the upper connection part of waterstop A, is inserted into the connection recess 52 of connecting member B. Furthermore, the connection wall A10 of the lower connection part A1 of waterstop A is fitted into the connection recess 40 of the base part 4 of connecting member B, and the connection protrusion 41 of connecting member B is inserted from below into the connection hole A11 of the lower connection part A1 of waterstop A. Thereafter, the fixing part 53 of connecting member B is inserted into the through hole 60 of fixing member C, and fixing member C is fitted into the fixing part 53 of connecting member B, thereby detachably fixing fixing member C to the fixing part 53 of connecting member B. In this state, the expanded diameter portion 61 of the fixing member C is inserted into the fixing groove portion 34 of the water stop plate A, and the expanded diameter portion 61 of the fixing member C and the support frame portion 51 of the connecting member B clamp the left and right ends of the connecting protrusion portion 3 of the water stop plate A from above and below, so that the water stop plate A and the connecting member B are connected and fixed at a predetermined position so that they cannot be displaced relative to each other.

[0049] Furthermore, the connecting member B can connect and integrate the end panel D in addition to the waterstop A. The end panel D is used to fill gaps formed between the connecting member B and a structure [for example, an exterior wall, interior wall, or door of an architectural structure (such as a building or detached house)] on the construction surface of the waterstop wall.

[0050] As shown in Figures 10 and 11, the end panel D has a panel body 71. One end face of the panel body 71 extending vertically is inclined obliquely, and the panel body 71 is narrowed from top to bottom in side view, giving the end panel D a generally vertically elongated rectangular shape. The panel body 71 of the end panel D has no through-holes and is configured to be watertight. The surface of the panel body 71 facing the connecting member B is shaped to match the shape of the upper surface of the base portion 4 and the outer peripheral surface of the column portion 5 of the connecting member B. When the end panel D is attached to the connecting member B, the end panel D and the connecting member B are in watertight contact with each other via a packing material (not shown) attached to the end panel D, and water leakage from gaps between the end panel D and the connecting member B is substantially eliminated.

[0051] A connecting pouch 72 is formed on the lower end surface of the panel body 71 of the end panel D. The connecting pouch 72 bulges upward to close the upper end and allows insertion of the connecting projection 41 of the connecting member B. An annular mounting portion 73 is integrally formed on the upper end of the panel body 71 of the end panel D. The mounting portion 73 can be detachably fitted onto the fixing portion 53 of the connecting member B from above.

[0052] An engagement piece 73a protrudes downward from the underside of the tip of the mounting portion 73 of the end panel D. Meanwhile, upward-opening engagement grooves 53b are formed at regular intervals around the circumference of the base end of the fixing portion 53 of the connecting member B on the entire outer circumferential surface of the fixing portion 53. When the end panel D is attached to the connecting member B, the engagement piece 73a of the end panel D is inserted from above into and engages with one of the engagement grooves 53b of the connecting member B, preventing the end panel D from moving relative to the connecting member B in the circumferential direction of the column portion 5.

[0053] That is, the end panel D is configured so that its connection bag portion 72 is fitted from above onto one of the connection protrusions 41 of the connecting member B, and the mounting portion 73 is fitted from above onto the fixed portion 53 of the connecting member B, and the engagement piece 73a can be inserted from above into one of the engagement grooves 53b of the connecting member B, allowing them to be engaged and disengaged freely.

[0054] The end panel D is configured to be connected and integrated with the connecting member B so as to be unable to move relative to it, by attaching the fixing member C detachably to the fixing portion 53 of the connecting member B, and by using the fixing piece 62 of the fixing member C to press the mounting portion 73 of the end panel D toward the engagement groove 53b of the fixing portion 53 of the connecting member B.

[0055] Next, how to use the waterstop A, connecting member B, fixing member C and end panel D will be explained.

[0056] The waterstop plates A are used to construct a waterstop wall F by connecting multiple waterstop plates A, A... in the left-right direction via connecting members B on a desired waterstop wall construction surface E, such as a road or building opening where floodwater or rainwater may enter or where floodwater or rainwater is expected to enter.

[0057] To connect waterstops A, A together laterally via connecting member B, for example, place connecting member B on the waterstop construction surface E, as shown in Figures 12 and 13. Next, on the right side of connecting member B, lift waterstop A upward, and insert the connecting wall portion A10 of the lower connecting portion of waterstop A into the connecting recess 40 of connecting member B from above, while inserting the connecting protrusion 41 of connecting member B into the connecting hole A11 of the lower connecting portion from below. At the same time, the connecting space portion 33 of waterstop A is fitted onto the support frame portion 51 of connecting member B from above, and the columnar protrusion 312, which is the upper connecting portion of waterstop A, is inserted into the connecting recess 52 of connecting member B, thereby attaching waterstop A to connecting member B. In the same manner as above, another waterstop A is attached to connecting member B on the left side of connecting member B.

[0058] Thereafter, the fixing member C is fitted onto the fixing portion 53 of the connecting member B, and the two locking projections 62a, 62a of the fixing member C are inserted from above into the first grooves 53a-1, 53a-1 of the locking grooves 53a, 53a in the fixing portion 53 of the connecting member B, respectively. After the locking projection 62a of the fixing member C reaches the bent portion of the locking groove 53a in the fixing portion 53 of the connecting member B (the lower end of the first groove 53a-1), the fixing member C is rotated horizontally, whereby the locking projections 62a, 62a of the fixing member C are detachably engaged with the second grooves 53a-2, 53a-2 of the locking grooves 53a, 53a of the connecting member, and the fixing member C is detachably fixed integrally to the fixing portion 53 of the connecting member B. In this state, the expanded diameter portion 61 of the fixing member C is inserted into the fixing groove portion 34 of the water stop plate A, and the left and right ends of the connecting protrusion portion 3 of the water stop plate A are clamped from above and below by the expanded diameter portion 61 of the fixing member C and the support frame portion 51 of the connecting member B, so that the water stop plate A and the connecting member B are connected at a predetermined position so that they cannot be displaced relative to each other.

[0059] When attaching the waterstop A to the connecting member B, the connecting member B and the waterstop A are connected using one of the multiple connecting protrusions 41 and connecting recesses 52 of the connecting member B, depending on the shape of the waterstop wall F to be constructed on the waterstop wall construction surface E.

[0060] The connecting projections 41 and connecting recesses 52 of the connecting member B are arranged at regular intervals in a 360° circular plane. Therefore, when connecting a waterstop A to the connecting member B, the desired connecting projections 41 and connecting recesses 52 on the connecting member B are connected to the connecting hole A11 and columnar projection 312 of the waterstop A. This allows the waterstop wall F to be linear, bent forward, or bent backward, thereby easily constructing a waterstop wall F of a desired shape. In other words, the waterstops A, A connected to both sides of the connecting member B can be connected via the connecting member B at any angle (e.g., 180° (linear) in FIG. 14 , 90° in FIG. 15 ). In this way, the waterstops A, A can be connected to each other at any desired angle, allowing a waterstop wall F of a desired shape to be easily constructed on the waterstop construction surface E.

[0061] Since the connecting protrusion 41 and the connecting recess 52 of the connecting member B are arranged in a circular shape, for example, one water stop plate A can be arranged so that it is positioned behind the other water stop plate A connected to the connecting member B, and water stop walls F of various shapes can be easily constructed (see Figure 15).

[0062] Alternatively, an end panel D may be attached to the connecting member B instead of or in addition to the waterstop A. In this case, the connecting bag portion 72 of the end panel D is fitted onto one of the connecting projections 41 of the connecting member B from above, and the mounting portion 73 of the end panel D is fitted onto the fixing portion 53 of the connecting member B from above, and the engaging piece 73a of the mounting portion 73 is inserted into one of the engaging grooves 53b of the connecting member B from above to engage them. Thereafter, in the same manner as described above, the fixing member C is detachably fixed integrally to the fixing portion 53 of the connecting member B, and the fixing piece 62 of the fixing member C presses the mounting portion 73 of the end panel D toward the engaging groove 53b of the fixing portion 53 of the connecting member B, thereby connecting and integrating the end panel D to the connecting member B so that they cannot move relative to each other.

[0063] Furthermore, when the waterstop A and / or end panel D are connected via the connecting member B, the opposing surfaces of the connecting member B and the waterstop A, and the opposing surfaces of the connecting member B and the end panel D are connected and integrated in a watertight, tightly sealed state, optionally via a gasket material.

[0064] By repeating the above procedure and connecting a plurality of waterstop plates A together via connecting members B, a waterstop wall F can be constructed on the waterstop wall construction surface E.

[0065] If a gap occurs between the constructed waterstop wall F and a structure on the waterstop wall construction surface E, the end panel D can be connected and integrated to the connecting member B in the manner described above, and the free end of the end panel D can be watertightly abutted against the structure on the waterstop wall construction surface E, if necessary via a gasket material D1, thereby constructing the waterstop wall F in a state where the space between the waterstop wall F and the structure on the waterstop wall construction surface E is watertightly sealed.

[0066] Furthermore, in order to improve resistance to water pressure by supporting a water cutoff wall F constructed on the water cutoff wall construction surface E on a structure on the water cutoff wall construction surface E, an end panel D may be disposed between the water cutoff wall F and the structure on the water cutoff wall construction surface E, and the water cutoff wall F may be supported by the structure on the water cutoff wall construction surface E via this end panel D. By constructing the water cutoff wall F in this manner, it is possible to prevent damage such as buckling of the water cutoff wall F due to water pressure applied to the water cutoff wall F.

[0067] The waterstop wall F constructed on the waterstop wall construction surface E as described above can be constructed on any waterstop wall construction surface E such as a road or building opening where floodwater or rainwater intrusion occurs or is expected to occur and used for waterstop purposes.In addition, the waterstop wall F can be constructed within a water flow path using a waterstop plate A, and this waterstop wall F can be used as a wall part of the flow path to change the flow direction of a fluid such as water flowing within the flow path, thereby allowing the fluid to flow in a desired direction.

[0068] Furthermore, since a pair of waterstop plates A, A can be connected and integrated at any angle on the left and right sides of the connecting member B, by connecting and integrating multiple waterstop plates A in a ring shape via the connecting member B, a ring-shaped waterstop wall F can be constructed, and the area surrounded by the waterstop wall F can be used as a temporary evacuation site or a temporary storage area for materials that need to be prevented from flooding.

[0069] The waterstop plates of the present invention are arranged in a horizontal direction on a surface on which a waterstop wall is to be constructed, and the horizontally arranged waterstop plates can be easily connected to each other via a connecting member (described later). By connecting the multiple waterstop plates in a horizontal direction, a waterstop wall can be easily constructed on the surface on which the waterstop wall is to be constructed.

[0070] (Cross-reference to related applications) This application claims priority to Japanese Patent Application No. 2024-012319, filed on January 30, 2024, the disclosure of which is incorporated herein by reference in its entirety.

[0071] DESCRIPTION OF SYMBOLS 1 Bottom 11 Central protrusion 12 Left side protrusion 13 Right side protrusion 2 Upright portion 3 Connecting protrusion 31 First support piece 311 Insertion piece 312 Column-shaped protrusion 32 Second support piece 33 Connection space portion 34 Fixing groove portion 341 Bottom 351 Grip portion 4 Base portion 40 Connecting recess 41A First connection portion 41 Connection protrusion 5 Column portion 51 Support frame portion 52 Connection recess 52A Second connection portion 53 Fixing portion 53a Locking groove portion 53b Locking groove 6 Fixing member main body 60 Through hole 61 Enlarged diameter portion 62 Fixing piece 62a Locking protrusion 71 Panel main body 72 Connection bag portion 73 Mounting portion 73a Engagement piece A Water stop plate A1 Lower connection portion A2 Waterstop body A10 Connection wall section A11 Connection hole section B Connection member C Fixing member C Connection member D End panel E Waterstop wall construction surface F Waterstop wall

Claims

1. A waterstop plate that can be connected in the left-right direction via connecting members to construct a waterstop wall, characterized in that it comprises a waterstop plate body including a bottom portion that is placed on the waterstop wall construction surface on which the waterstop wall is constructed, and an upright portion that stands upright from the rear of the bottom, and connecting portions including an upper connecting portion formed on the top of the waterstop plate body and detachably connectable to the top of the connecting member, and a lower connecting portion formed on the bottom of the waterstop plate body and detachably connectable to the bottom of the connecting member.

2. A waterstop as described in claim 1, characterized in that the standing portion has a connecting protrusion formed toward the rear at the upper end of the standing portion, and an upper connection portion formed at each of the left and right ends of the connecting protrusion.

3. A waterstop as described in claim 2, characterized in that the upper connection portion is configured to be detachably connectable to a second connection portion formed on the upper part of the connecting member.

4. A waterstop as described in claim 2, characterized in that the lower connection portion is configured to be detachably connectable to a first connection portion formed at the bottom of the connecting member.

5. A waterstop as described in claim 1 or claim 2, characterized in that the waterstop body is formed by protruding from the left and right sides of the upper surface of the bottom, and has left and right protrusions extending from the front end of the bottom toward the left and right ends of the rear end of the bottom.

6. A waterstop as described in claim 5, characterized in that the waterstop body has a central protrusion formed protruding from the center of the top surface of the bottom, which is higher than the left and right protrusions and extends from the front end of the bottom to the center of the rear end of the bottom.

7. The waterstop according to claim 6, wherein the width of the central protrusion increases from the front to the rear.

8. A waterstop as described in claim 1, characterized in that the lower connection portion is formed at the connecting portion between the bottom portion and the upright portion.

9. A waterstop as described in claim 1 or claim 2, characterized in that the upright portion has a gripping portion for gripping the waterstop.

10. A waterstop set comprising waterstops and connecting members for connecting the waterstops together, wherein the waterstop comprises a waterstop body including a bottom portion to be placed on a waterstop wall construction surface on which a waterstop wall is constructed and an upright portion erected upward from the rear of the bottom, and connecting portions including an upper connecting portion formed on the top of the waterstop body and removably connectable to the top of the connecting member, and a lower connecting portion formed on the bottom of the waterstop body and removably connectable to the bottom of the connecting member.

11. A waterstop set as described in claim 10, characterized in that the connecting member has a base portion having a connection protrusion that can be connected to the lower connection portion of the waterstop, and a pillar portion that protrudes upward from the base portion and has a connection recess at its upper portion that opens upward and can be connected to the upper connection portion of the waterstop.

12. A waterstop set as described in claim 11, characterized in that the base portion of the connecting member is formed in a circular shape and has a plurality of connecting protrusions arranged in a circular shape at a predetermined interval on the outer periphery of the upper surface.

13. A waterstop set as described in claim 11, characterized in that the column portion of the connecting member is formed in a truncated cone shape and has a plurality of connecting recesses arranged in a circular shape at a predetermined interval on the upper part.

14. A waterstop set as described in claim 10, characterized in that the upper connection portion is a columnar protrusion that can be freely inserted and removed into a connection recess formed in the upper part of the connecting member.

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