Water stop plate for boundary stones

Abstract

To provide a water stop plate for a boundary stone which can be easily applied even to a stepped part due to the boundary stone or the like.SOLUTION: A water stop plates connected and installed to a left end or a right end of a water stop wall body in which basic water stop plates each including a bottom plate secured to a floor surface and a wall surface plate extending upward at a rear end of the bottom plate are continuously connected to the left and right sides, includes: a boundary bottom plate secured to the floor surface and connected and installed to the bottom plate of the basic water stop plate; a boundary wall surface plate extending upward at a rear end of the boundary bottom plate and connected and installed to the wall surface plate of the basic water stop plate; and a boundary blocking plate coupled to the boundary wall surface plate and secured to a boundary floor surface formed so as to have a step higher than the floor surface at a side surface end part of the floor surface, wherein the outflow of water can be completely blocked even in the case of the boundary floor surface formed so as to have an upward high step at the side surface end part of the floor surface.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to a water stop plate for boundary stones, and more particularly, to a water stop plate for boundary stones that can be easily applied to stepped portions formed by boundary stones and the like.

Background Art

[0002] In recent years, due to the influence of climate change, the frequency of occurrence of localized heavy rain has increased. Also, as the paving rate of roads and the ground increases with urbanization, the damage caused by heavy rain has been increasing. In particular, property and human damage due to flooding in low-lying areas, underground parking lots, subways, underground shopping arcades, underground buildings, etc. has been significantly increasing.

[0003] The flooding damage caused by such localized heavy rain is not only difficult to predict, but also has the characteristics that the flood arrival time is short and the damage occurs suddenly.

[0004] To prevent such damage, Korean Patent No. 10-1898870 discloses a "portable streamlined tide barrier for sudden flooding." This conventional technology includes a base plate material formed flat so as to be able to be fixed to the ground, having a plurality of folds provided that protrude upward at predetermined intervals, and having at least one inner guide between the plurality of folds for guiding the entry of water; and a wall plate material connected vertically upward from the base plate material to form a wall surface, having an arc-shaped portion that protrudes in a rounded shape through the wall surface and is arranged to inclin toward the base plate material, wherein the arc-shaped portion is arranged vertically along the left and right center of the wall plate material and has a shape in which the degree of protrusion increases from the lower end to the upper end of the wall plate material, the plurality of folds have a conical shape in which the degree of upward protrusion increases toward the wall plate material side within the base plate material, the ends of each of the plurality of folds are connected to both the left and right sides of the lower end of the arc-shaped portion, and the inner guide is between the plurality of folds and The objective is to provide a movable streamlined tide barrier for sudden flooding (see Claim 1), which is provided in a parallel direction, and the inner guide includes a front end that protrudes in a straight shape parallel to the plurality of pleats at the starting point of the plurality of pleats, and a rear end that protrudes in a V-shape from the front end and is connected to the plurality of pleats, and which, when filled with water, guides the water pressure downward and quickly guides the water flow to the left and right, thereby enabling stable support, quickly flows the water flow to the left and right, and when multiple units are connected, forms a wave-like arc overall, increasing the force that can withstand water pressure, and can concentrate and disperse water pressure, thereby guiding water to enter stably and quickly, and thereby guiding the water pressure to the innermost part as a whole, providing a sense of stability to the center of gravity.

[0005] However, the aforementioned conventional technology has the drawback that it cannot be applied when there are steps or uneven sections on the side of the road. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Korean Patent Publication No. 10-1898870 [Patent Document 2] Korean Published Patent Publication No. 10-2019-0071311 [Overview of the project] [Problems that the invention aims to solve]

[0007] This invention was devised to solve the aforementioned problems and aims to provide a water-stopping plate for boundary stones that can be easily applied even when there are stepped sections caused by boundary stones on the side of a road or the like.

[0008] Furthermore, the aim is to provide a water-stopping plate for boundary stones that can be easily applied even when the stepped sections created by boundary stones on the sides of roads, etc., are not horizontal but sloped in the front-to-back or left-to-right directions. [Means for solving the problem]

[0009] A boundary stone water stop plate according to one aspect of the present invention is connected to the left or right end of a water stop wall body formed by continuously connecting and installing basic water stop plates, each including a base plate attached to the floor surface and a wall plate extending upward from the rear end of the base plate, to the left and right ends of a water stop wall body. The water stop plate includes a boundary base plate attached to the floor surface and connected to the base plate of the basic water stop plate, a boundary wall plate extending upward from the rear end of the boundary base plate and connected to the wall plate of the basic water stop plate, and a boundary closing plate attached to a boundary floor surface that is connected to the boundary wall plate and is formed such that there is a step above the floor surface at the side edge of the floor surface. This water stop plate can completely block water outflow even if the boundary floor surface is formed such that there is a step above the floor surface at the side edge of the floor surface.

[0010] The base plate includes a pair of floor projections that protrude upward and whose height gradually increases towards the rear, and a pair of side-by-side wall projections that protrude forward from the wall plate, wherein the wall projections are connected to the floor projections.

[0011] The wall panel may further include an upper projection that protrudes forward and connects the upper ends of the pair of wall projections from left to right, and a handle hole formed through the lower side of the upper projection.

[0012] The wall panel may further include lower protrusions that project forward and connect the lower parts of the pair of wall protrusions from left to right.

[0013] The pair of floor projections may further include an auxiliary floor projection that protrudes upward from the bottom plate.

[0014] The present invention further includes a gap-closing plate connected to the front end of the base plate, the gap-closing plate being characterized by sealing the gap that occurs between the front end of the base plate and the floor surface when the floor surface is inclined.

[0015] The boundary closure plate and the boundary wall plate are further connected by an angle-height adjustment section, the angle-height adjustment section comprising an arc-shaped groove formed at the end of the boundary wall plate and a rectangular protrusion formed at the end of the boundary closure plate, the rectangular protrusion being installed by sliding into the arc-shaped groove from top to bottom, the vertical installation height can be adjusted and detachment in the lateral direction is prevented, and the protrusion can rotate within the groove, thus being able to respond well to changes in the height and width of the boundary floor surface.

[0016] The present invention further includes a boundary side plate connecting the boundary bottom plate and the end of the boundary wall plate, wherein the upper front side of the boundary side plate is cut off, allowing water flowing in to the outside and inside of the boundary side plate to flow easily and quickly eliminate the difference in water pressure.

[0017] A portion of the central part of the arc-shaped groove is open between the boundary side plate and the boundary wall plate.

[0018] The present invention further includes a lower closing plate connected to the lower end of the boundary closing plate, wherein the lower closing plate is installed so as to be inclined forward and downward.

[0019] The lower closing plate is integrally coupled to the lower end of the boundary closing plate or is detachably coupled by being fitted therein.

Advantages of the Invention

[0020] According to the present invention, it can be easily applied even when there are step portions formed by curb stones or the like on the side surface of a road or the like.

[0021] Further, it can be easily applied even when the step portions formed by curb stones or the like on the side surface of a road or the like are inclined forward and backward or left and right instead of being horizontal.

Brief Description of the Drawings

[0022] [Figure 1] The perspective view which shows a state where the water stop plate for a curb stone and the basic water stop plate according to one aspect of the present invention are installed at the entrance of an underground parking lot. [Figure 2a] The perspective view of the basic water stop plate of the present invention. [Figure 2b] The figure which shows the gap closing plate equipped at the front end of the basic water stop plate of the present invention. [Figure 2c] The enlarged view of the gap closing plate shown in Fig. 2b. [Figure 3] The perspective view which shows a state where the basic water stop plates of the present invention are connected and installed to each other. [Figure 4] The perspective view of the water stop plate for a curb stone of the present invention. [Figure 5] The plan view of the water stop plate for a curb stone of the present invention. [Figure 6] The perspective view which shows a state where the boundary closing plate of the water stop plate for a curb stone of the present invention is coupled to the boundary wall surface plate. [Figure 7] The perspective view and the enlarged cross-sectional view which show a state where the lower closing plate coupled to the lower end of the boundary closing plate of the present invention is installed.

Modes for Carrying Out the Invention

[0023] Hereinafter, several embodiments of the present invention will be described in detail with reference to illustrative drawings. In assigning reference numerals to the components in each drawing, the same components will be denoted as much as possible, even if they are shown in other drawings. Furthermore, in describing embodiments of the present invention, if it is determined that a specific description of a related known configuration or function may obscure the understanding of the embodiments of the present invention, such a detailed description will be omitted.

[0024] Furthermore, when describing the components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are merely for distinguishing a component from other components, and do not limit the nature, order, or procedure of the component. When a component is described as being “linked,” “joined,” or “connected” to another component, that component may be directly linked or connected to the other components, but further components may be “linked,” “joined,” or “connected” between each component.

[0025] A water-stopping plate for boundary stones according to one aspect of the present invention will be described below with reference to the drawings.

[0026] Figure 1 is a perspective view showing a boundary stone water stop plate and a basic water stop plate according to one embodiment of the present invention installed at the entrance of an underground parking lot; Figure 2a is a perspective view of the basic water stop plate of the present invention; Figures 2b and 2c are gap-closing plates provided at the front end of the basic water stop plate of the present invention and their enlarged views; Figure 3 is a perspective view showing how the basic water stop plates of the present invention are connected to each other; Figure 4 is a perspective view of the boundary stone water stop plate of the present invention; Figure 5 is a plan view of the boundary stone water stop plate of the present invention; Figure 6 is a perspective view showing how the boundary-closing plate of the boundary stone water stop plate of the present invention is connected to the boundary wall plate; and Figure 7 is a perspective view and enlarged cross-sectional view showing how the lower-closing plate connected to the lower end of the boundary-closing plate of the present invention is installed.

[0027] A boundary stone water-stopping plate 20 according to one aspect of the present invention is connected and installed at the left or right end of a water-stopping wall body formed by continuously connecting and installing basic water-stopping plates 10, each including a base plate 12 attached to a floor surface 40 and a wall plate 14 extending upward from the rear end of the base plate 12, to the left or right end of a water-stopping wall body. The boundary base plate 20 is attached to the floor surface 40 and connected and installed to the base plate 12 of the basic water-stopping plate 10. The boundary wall plate 24 extends upward from the rear end of the boundary base plate 22 and is connected and installed to the wall plate 14 of the basic water-stopping plate 10. The boundary closing plate 26 is connected to the boundary wall plate 24 and attached to a boundary floor surface 50 that is formed such that there is a step above the side edge of the floor surface 40. The boundary floor surface 50 is formed such that there is a step above the side edge of the floor surface 40, and water outflow can be completely blocked.

[0028] The basic water-stopping plate 10 includes a bottom plate 12 and a wall plate 14, and can be installed in a continuous manner on the left and right sides to form a water-stopping wall.

[0029] The aforementioned watertight wall can block water from flowing out to the rear. The watertight wall can be installed at the entrances of underground parking lots, underground roads, underground shopping malls, underground buildings, etc., and can be used to prevent flooding by blocking water from flowing out to the underground space on the rear side.

[0030] The base plate 12 of the basic water-stopping plate 10 is installed on the floor surface 40, such as at an entrance to an underground space, and can be formed in a plate shape such as a square, rectangle, or trapezoid. The trapezoidal shape can be used when installing the water-stopping wall in an arc shape that bulges forward or backward.

[0031] The wall panel 14 extends upward from the base plate 12 and may extend vertically upward or slightly inclined toward the front. The vertically upward or forward-inclined shape can prevent the basic water-stopping plate 10 from tipping backward. The wall panel 14 can be formed in the shape of a square, rectangle, or other plate.

[0032] The connection point between the wall panel 14 and the bottom panel 12 can be bent into a right-angle shape or into a gently curved shape.

[0033] The basic water-stopping plates 10 can be installed by overlapping them, connecting them with rings, strings, etc., or by inserting and connecting them.

[0034] Referring to Figures 2 and 3, an insertion opening is formed on one side of the basic water-stopping plate 10, and an insertion projection is formed on the other side, allowing the insertion projection to be inserted into the insertion opening and connected. For example, a lower insertion opening 122 is formed at one front end of the bottom plate 12, and an upper insertion opening 142 is formed at one upper end of the wall plate 14. A lower insertion projection 123 is formed at the other front end of the bottom plate 12, and an upper insertion projection 143 is formed at the other upper end of the wall plate 14, allowing the insertion projection to be inserted into the insertion opening and connected. The lower insertion opening 122 and the upper insertion opening 142 can be formed with a wide width in the left-right direction. The wide lower insertion opening 122 and upper insertion opening 142 allow for easy adjustment of the width of the water-stopping wall by adjusting the degree of overlap between the basic water-stopping plates 10.

[0035] The base plate 12 includes a pair of floor projections 124 that protrude upward and whose height gradually increases towards the rear, and a pair of side-by-side wall projections 144 that protrude forward from the wall plate 14, wherein the wall projections 144 can be connected to the floor projections 124.

[0036] The floor projection 124 can start from a position a certain distance away from the rear of the front end of the base plate 12 and gradually increase in height, width, etc., as it moves towards the rear. If the base plate 12 is rectangular, the pair of floor projections 124 are formed in a side-by-side shape, and if the base plate 12 is trapezoidal, they may be trapezoidal in shape, either wider at the front or wider at the rear.

[0037] The pair of wall projections 144 are preferably formed in an adjacent shape, with their lower parts connected to the floor projections 124. The pair of wall projections 144 may extend from the pair of floor projections 124 by being bent at a right angle, or they may extend in a gently curved shape.

[0038] The wall panel 14 may further include an upper projection 145 that protrudes in the front direction and connects the upper ends of a pair of wall projections 144 from left to right, and a handle hole 146 formed through the lower side of the upper projection 145.

[0039] The handle holes 146 are very convenient for moving and installing the basic water-stopping plates 10. After using the basic water-stopping plates 10, they can be stacked and stored by tying them together with string or wire through the handle holes 146. In addition, multiple basic water-stopping plates 10 can be easily moved using the tied string or wire.

[0040] The wall panel 14 may further include a lower projection 147 that protrudes in the front direction and connects the lower parts of the pair of wall projections 144 from left to right.

[0041] The floor surface projection 125 may further be included, projecting upward between the pair of floor surface projections 124. The height, width, etc., of the auxiliary floor surface projection 125 can gradually increase as it moves towards the rear, starting from a position a certain distance apart at the front end of the bottom plate 12. One or more auxiliary floor surface projections 125 may be formed.

[0042] Furthermore, an auxiliary wall projection 148 connecting the wall projections 144 on both sides may be included between the upper projection 145 and the lower projection 147. The auxiliary wall projection 148 can be formed with a smaller projection height than the upper projection 145 and the lower projection 147.

[0043] Furthermore, the pair of wall projections 144 may further include dumbbell-shaped reinforcing projections 149 on both sides.

[0044] The basic water-stopping plate 10 may further include adhesive members attached in a strip shape, such as rubber, silicone, plastic, nonwoven fabric, or woven fabric, to the portions that overlap with adjacent basic water-stopping plates 10, portions that overlap with boundary stone water-stopping plates 20, or portions that come into contact with the floor surface 40. The adhesive members can eliminate gaps between the basic water-stopping plates 10, between the basic water-stopping plates 10 and the boundary stone water-stopping plates 20, and between the basic water-stopping plates 10 and the floor surface 40, thereby blocking water leakage, preventing slippage, and enabling a secure connection between them.

[0045] The aforementioned floor protrusions 124, wall protrusions 144, upper protrusions 145, lower protrusions 147, auxiliary floor protrusions 125, etc., can greatly increase the rigidity of the basic water-stopping plate 10, allowing it to withstand water pressure well even with less material.

[0046] The base plate 12 may further include a gap-closing plate 127 that is coupled to the front end of the base plate 12. The gap-closing plate 127 can close the gap that occurs between the front end of the base plate 12 and the floor surface 40 when the floor surface 40 is inclined. That is, when the floor surface 40 is inclined in a curved shape, the front end of the base plate 12 is lifted, and in this case, the gap-closing plate 127 can close the gap and prevent water from flowing downward. The gap-closing plate 127 can effectively close the gap by being rotatably coupled to the front end of the base plate 12 or by being coupled so as to be inclined downward. The gap-closing plate 127 may also be detachably coupled to the front end of the base plate 12 or installed in a structure that is permanently coupled.

[0047] Referring to Figures 4 to 7, the boundary closure plate 26 and the boundary wall plate 24 may be further connected by an angle-height adjustment section 30. The angle-height adjustment section 30 may include an arc-shaped groove 32 formed at the end of the boundary wall plate 24 and a rectangular protrusion 34 formed at the end of the boundary closure plate 26. The rectangular protrusion 34 can be installed by sliding it into the arc-shaped groove 32 from top to bottom. The vertical installation height can be adjusted depending on the degree to which the boundary closure plate 26 is inserted, detachment in the lateral direction is prevented, and the protrusion 34 can rotate within the groove 32, thus accommodating changes in the height and width of the boundary floor surface 50.

[0048] The arc-shaped groove 32 is formed vertically and elongated at the end of the boundary wall panel 24, and the sides and top may be open. The arc-shaped groove 32 may be formed over the entire upper and lower end of the boundary wall panel 24, or it may be formed only on a part of the upper part. If it is formed only on a part of the upper part, it is desirable to form it up to the minimum height of the boundary floor surface 50.

[0049] The rectangular protrusion 34 can be formed on the entire upper and lower side edge of the boundary closing plate 26. The rectangular protrusion 34 can be lowered and installed down to the boundary floor surface 50 by sliding it into the arc-shaped groove 32 from top to bottom. Furthermore, by rotating the protrusion 34 within the groove as needed to match the width of the boundary floor surface 50, it is possible to prevent the creation of an outflow space on the side.

[0050] The boundary may further include a boundary side plate 28 that connects the boundary base plate 22 and the end of the boundary wall plate 24. The upper front of the boundary side plate 28 is cut off, allowing water flowing in to the outside and inside of the boundary side plate 28 to flow easily from side to side, and enabling the rapid removal of water pressure differences. The boundary side plate 28 can connect the boundary base plate 22 and the boundary wall plate 24 to increase the structural rigidity of the boundary stone water-stopping plate 20.

[0051] A portion of the central part of the arc-shaped groove 32 can be left open between the boundary side plate 28 and the boundary wall plate 24. This opening between the boundary side plate 28 and the boundary wall plate 24 makes it easier to manufacture the mold and reduces manufacturing costs.

[0052] The boundary closure plate 26 may be formed in an arc shape and have flanges at its upper and lower ends. The arc shape and flanges at the upper and lower ends increase the rigidity of the boundary closure plate 26, allowing it to withstand high water pressures.

[0053] Referring to Figure 7, the boundary closure plate 26 may further include a lower closure plate 29 connected to its lower end. The lower closure plate 29 may be installed so as to be inclined forward and downward. The lower closure plate 29 may be made of a flexible material. A flexible lower closure plate 29 can completely block water outflow even if it is inclined forward, backward, or left and right relative to the boundary floor surface 50. Flexible materials may include rubber, silicone, or flexible plastic. The boundary closure plate 26 may be made of inflexible material such as iron or plastic.

[0054] The lower closing plate 29 can be integrally bonded to the lower end of the boundary closing plate 26 with adhesive, or it can be detachably bonded by fitting it in. In the case of fitting, it can be bonded by fitting it in between an arc-shaped recess formed on either the lower end of the boundary closing plate 26 or the upper end of the lower closing plate 29 and a rectangular protrusion formed on the other side. When the lower closing plate 29 is not needed, it can be removed and stored.

[0055] The boundary stone water stop plate 20 and the basic water stop plate 10 can be installed overlapping each other, connected to each other with rings, strings, etc., or connected by insertion.

[0056] The insertion connection method can be similarly applied to the insertion connection of the basic water stop plate 10 in Figures 2 and 3. That is, an insertion opening is formed in either the basic water stop plate 10 or the boundary stone water stop plate 20, and an insertion projection is formed in the other, and the insertion projection can be inserted into the insertion opening to connect them. In other words, the insertion connection between the boundary stone water stop plate 20 and the basic water stop plate 10 can be performed in the same way as the insertion connection between the basic water stop plates 10 described above.

[0057] The boundary stone water stop plate 20 may further include adhesive members attached in a strip shape, such as rubber, silicone, plastic, nonwoven fabric, or woven fabric, to the portion that overlaps with the adjacent basic water stop plate 10 or to the portion that comes into contact with the floor surface 40. The adhesive members can eliminate gaps between the boundary stone water stop plate 20 and the basic water stop plate 10, and between the boundary stone water stop plate 20 and the floor surface 40, thereby blocking water leakage, preventing slippage, and enabling a secure connection between them.

[0058] The method of simply overlapping the boundary stone water stop plate 20 and the basic water stop plate 10 can adequately accommodate the size of the installation width of the boundary stone water stop plate 20 formed at the end of the water stop wall.

[0059] Although all components constituting the embodiments of the present invention have been described as either being combined as a single entity or operating in combination, the present invention is not necessarily limited to these embodiments. That is, within the scope of the present invention, all components may be selectively combined as one or more entities to constitute or operate. Furthermore, the terms "contains," "constitutes," or "has," as described above, mean that the component in question may be inherent, and should not be interpreted as excluding other components, but rather as further including other components, unless otherwise stated. All terms, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Commonly used terms, such as those defined in dictionaries, should be interpreted to be consistent with their meaning in the context of the relevant art, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in the present invention.

[0060] The above description is merely illustrative of the technical concept of the present invention, and a person with ordinary skill in the art to which the present invention pertains should be able to make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed herein are for illustrative purposes only, not to limit the technical concept of the present invention, and these embodiments do not limit the scope of the technical concept of the present invention. The scope of protection of the present invention shall be interpreted in accordance with the appended claims, and all technical concepts belonging to an equivalent scope shall be interpreted as being included within the scope of the rights of the present invention. [Explanation of symbols]

[0061] 10 Basic water stop plate 12 Bottom plate 122 Lower insertion opening 123 Lower insertion projection 124 Floor protrusion 125 Auxiliary floor protrusion 127 Gap sealing plate 14 Wall panels 142 Top insertion opening 143 Upper insertion projection 144 Wall protrusion 145 Upper protrusion 146 Handle holes 147 Lower protrusion 148 Auxiliary wall protrusion 149 Reinforcement protrusion 20 Water-stopping plate for boundary stones 22 Boundary bottom plate 24 Boundary wall plate 26 Boundary occlusion plate 28 Boundary side plate 29 Lower obstructing plate 30 Angle and height adjustment section 32 grooves 34 Convex part 40 floor surface 50 Boundary floor

Claims

1. A basic water-stopping plate, which includes a base plate fixed to the floor surface and a wall plate extending upward from the end of the base plate on the side opposite to the side from which water flows, is connected and installed in a continuous manner from left to right to the left end of a water-stopping wall body, and is connected and installed at the left or right end of the wall body, A boundary bottom plate is fixed to the floor surface and connected to the bottom plate of the basic water-stopping plate, A boundary wall plate extending upward at the end of the boundary bottom plate on the side opposite to the side from which water flows in, and connected to and installed on the wall plate of the basic water-stopping plate, A boundary closing plate is attached to the boundary floor surface, which is connected to the boundary wall plate and has a step above the floor surface at the side edge of the floor surface, Includes, The system further includes an angle and height adjustment section that connects the boundary closing plate and the boundary wall plate, The angle height adjustment part includes an arc-shaped groove formed at the end of the boundary wall plate and a partially cylindrical protrusion formed at the end of the boundary closing plate. The aforementioned partially cylindrical protrusion is installed by sliding it into the arc-shaped groove from top to bottom, allowing for adjustment of the vertical installation height and preventing detachment in the lateral direction. Furthermore, since the protrusion can rotate within the groove, it can effectively accommodate changes in the height and width of the boundary floor surface. The present invention further includes a lower closing plate connected to the lower end of the boundary closing plate, The aforementioned lower closing plate is made of a flexible material and is installed so as to be inclined downward toward the side into which water flows. A water-stopping plate for boundary stones, characterized in that it can completely block water outflow even when placed on a boundary floor surface where there is a significant step above the side edge of the floor surface.

2. The boundary further includes boundary side plates that connect the boundary bottom plate and the end of the boundary wall plate, The boundary side plate is characterized in that the upper side on the side into which water flows is cut off, allowing water flowing in to the outside and inside of the boundary side plate to flow easily and quickly eliminate the difference in water pressure, as described in claim 1.

3. The boundary stone water stop plate according to claim 2, characterized in that a portion of the central part in the longitudinal direction of the arc-shaped groove is open between the boundary side plate and the boundary wall plate.

4. The water-stopping plate for boundary stones according to claim 1, characterized in that the lower closing plate is integrally connected to the lower end of the boundary closing plate, or is fitted and detachably connected.

5. A water-stopping wall body comprising a water-stopping wall body in which basic water-stopping plates, each including a base plate fixed to the floor surface and a wall plate extending upward at the end of the base plate on the side opposite to the side from which water flows in, are connected and installed in a continuous manner from left to right, and a water-stopping plate for boundary stones according to any one of Claims 1 to 4, connected and installed at the left or right end of the water-stopping wall body.

6. The water-stopping plate system according to claim 5, comprising: a pair of floor projections that protrude upward from the bottom plate and whose height gradually increases toward the side opposite to the side from which water flows; and a pair of wall projections that protrude in the direction toward which water flows into the wall plate, wherein the wall projections are connected to the floor projections.

7. The water-stopping plate system according to claim 6, further comprising an upper projection that protrudes from the wall panel in a direction in which water flows in, and connects the upper ends of the pair of wall projections from left to right, and a handle hole formed through the lower side of the upper projection.

8. The water-stopping plate system according to claim 6, further comprising a lower projection that protrudes in the direction in which water flows into the wall plate and connects the lower parts of the pair of wall projections from left to right.

9. Further comprising a gap-closing plate coupled to the end of the bottom plate on the side into which water flows, The water-stopping plate system according to claim 5, characterized in that the gap-closing plate closes the gap that occurs between the end of the bottom plate and the floor surface when the floor surface is inclined.

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