Water shutoff device

Abstract

To provide a water cut-off device that can improve water cut-off performance.SOLUTION: A water cut-off device 1 according to the embodiment includes a body part 2 integrally molded from a single steel plate 10, the body part 2 has a bottom plate part 3 arranged along the installation surface, a rising plate part 4 rising from the rear end of the bottom plate part 3, a first connecting part 51 formed at one end in the left-right direction Y, a second connecting part 54 formed at the other end in the left-right direction, and a claw part 91 extending forward from the front end of the second connecting part 54. The first connecting part 51 is connected to and overlapped by the second connecting part 54 of another water cut-off device 1 adjacent in the left-right direction Y. The bottom plate part 2 has a front end curved part 3a whose front end side is curved upward. The front end curved part 3a has an upper locking part 92 arranged above the claw part 91 of the other water cut-off device 1 adjacent in the left-right direction Y.SELECTED DRAWING: Figure 9

Description

Technical Field

[0001] The present invention relates to a water stop device.

Background Art

[0002] Recently, short-term concentrated heavy rains, so-called guerrilla heavy rains, have occurred frequently. Due to river flooding and rainwater jetting from sewer facilities in a short time, damage such as floor flooding and above-floor flooding has occurred.

[0003] Conventionally, during flood disasters such as river flooding, sandbags were stacked at openings such as buildings and underground entrances to create a water-blocking wall to prevent flooding inside the buildings and the like. However, in urban areas, the sand and soil for putting in the sandbags and tools such as scoops were not prepared, and it was difficult to prepare the sandbags immediately. In addition, since the sandbags are very heavy, stacking work requires a great deal of time and labor. Furthermore, since flood disasters due to concentrated heavy rains occur in a short time, if it takes time to prepare and stack the sandbags, there is a risk of flooding before the water-blocking wall is made.

[0004] Conventionally, as technologies related to water stop devices for preventing water inundation, Patent Documents 1 to 3 have been disclosed.

[0005] Patent Document 1 discloses a substantially L-shaped one having a bottom plate provided with a water absorption member on the back surface and a rising plate rising from the rear end of the bottom plate, and a connecting portion for connecting the water stop device to the left and right is provided on at least one end side of the left and right ends of the water stop device.

[0006] Patent Document 2 discloses a water stop device including a bottom surface water stop material disposed along an installation surface and a wall surface water stop material disposed substantially perpendicular to the bottom surface water stop material, and a mat-like water absorption member having a property of absorbing water by capillary action is attached to the surface on the installation surface side of the bottom surface water stop material, and the water absorption member is continuously arranged in a U-shape on the front side and the side of the surface on the installation surface side of the bottom surface water stop material.

[0007] Patent document 3 discloses a resin water-stopping device formed in an L-shaped cross-section. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Patent No. 6614562 [Patent Document 2] Japanese Patent Publication No. 2016-108897 [Patent Document 3] Design Registration No. 1664078 (Publication Gazette) [Overview of the project] [Problems that the invention aims to solve]

[0009] Incidentally, the installation surface on which the water-stopping device is installed is not always flat and may have uneven surfaces. In the technologies disclosed in Patent Documents 1 to 3, although multiple water-stopping devices are connected in the left-right direction, when installed on an uneven surface, there is a risk that the water-stopping devices may float up at the connection points. This can lead to a decrease in water-stopping performance.

[0010] Therefore, the present invention was devised in view of the above circumstances, and its objective is to provide a water-stopping device that can improve water-stopping even when there is unevenness in the surface. [Means for solving the problem]

[0011] The water-stopping device according to the first invention is a water-stopping device for preventing flooding, and comprises a main body integrally molded from a single steel plate, the main body having a bottom plate portion arranged along the installation surface, a rising plate portion rising from the rear end of the bottom plate portion, a first connecting portion formed at one end in the left-right direction, a second connecting portion formed at the other end in the left-right direction, and a claw portion extending forward from the front end of the second connecting portion, the first connecting portion being connected by overlapping the second connecting portions of other water-stopping devices adjacent in the left-right direction, the bottom plate portion having a front end curved portion curved upward at its front end, and the front end curved portion having an upper locking portion positioned above the claw portion of other water-stopping devices adjacent in the left-right direction Furthermore, the upper locking portion is the end face of the curved front portion. It is characterized by the following.

[0014] The 2 The water-stopping device according to the invention is the first Clearly In this configuration, the first connecting portion has either a male connecting portion or a female connecting portion, the second connecting portion has either a male connecting portion or a female connecting portion or the other, and the female connecting portion is formed in a shape that allows the male connecting portion of another water-stopping device to be loosely fitted. [Effects of the Invention]

[0015] According to the first to fourth inventions, the second connecting portion has a claw portion extending forward from its front end, the first connecting portion is connected to the second connecting portions of other water-stopping devices adjacent to each other in the left-right direction by overlapping them, the bottom plate portion has a front end curved portion that is curved upward on its front end side, and the front end curved portion has an upper locking portion that is positioned above the claw portion of other water-stopping devices adjacent to each other in the left-right direction. As a result, even if other water-stopping devices try to float up due to unevenness of the installation surface, the claw portion can be brought into contact with the upper locking portion. Therefore, the connected state of the first connecting portion and the second connecting portion, which are connected by overlapping each other, can be maintained, and the water-stopping performance can be improved.

[0016] In particular, according to the second invention, the front end curved portion extends downward from the upper locking portion and has a pair of lateral locking portions spaced further apart than the width of the claw portion in the left-right direction. As a result, the pair of lateral locking portions of one water-stopping device are positioned on both sides of the claw portion of the other water-stopping device in the left-right direction. Therefore, even if the water-stopping device tries to shift left-right due to unevenness of the installation surface, the claw portion can be brought into contact with the lateral locking portions. As a result, the left-right shift of the claw portion can be suppressed. Thus, the connected state of the first connecting portion and the second connecting portion, which are connected by overlapping each other, can be maintained, and the water-stopping performance can be improved.

[0017] Furthermore, according to the second invention, when connecting one water-stopping device adjacent to another in the left-right direction, the claw portion of the other water-stopping device can be inserted between the pair of lateral locking portions of the first water-stopping device. In other words, the pair of lateral locking portions can function as guides when inserting the claw portion. This makes the connection work of water-stopping devices easier.

[0018] In particular, according to the third invention, the upper locking portion is the end face of the curved front portion. This makes it possible to manufacture without forming a slit in the curved front portion. Therefore, it is possible to improve manufacturing efficiency.

[0019] In particular, according to the fourth invention, the first connecting portion has either a male connecting portion or a female connecting portion, and the second connecting portion has either a male connecting portion or a female connecting portion, and the female connecting portion is formed in a shape into which the male connecting portion of another water-stopping device is loosely fitted. As a result, even if the water-stopping device tries to shift in the left-right direction due to unevenness of the installation surface, the female connecting portion can suppress the left-right shift of the male connecting portion. Therefore, the connected state of the first connecting portion and the second connecting portion, which are connected by overlapping each other, can be maintained, and the water-stopping performance can be improved. [Brief explanation of the drawing]

[0020] [Figure 1] Figure 1 is a perspective view showing multiple water-stopping devices in the first embodiment connected together. [Figure 2] FIG. 2 is a perspective view showing the whole of an example of the water stop device in the first embodiment. [Figure 3] FIG. 3 is a perspective view showing the front end curved portion of an example of the water stop device in the first embodiment. [Figure 4] FIG. 4(a) is a view showing the first connecting portion and the second connecting portion of an example of the water stop device in the first embodiment from the vertical direction, and FIG. 4(b) is a view showing the first connecting portion and the second connecting portion of an example of the water stop device in the first embodiment from the front-back direction. [Figure 5] FIG. 5(a) is a cross-sectional view showing the first protruding strip portion of an example of the water stop device in the first embodiment, and FIG. 5(a) is a cross-sectional view showing the second protruding strip portion of an example of the water stop device in the first embodiment. [Figure 6] FIG. 6(a) is an enlarged cross-sectional view showing the rising plate portion of an example of the water stop device in the first embodiment, and FIG. 6(b) is an enlarged cross-sectional view showing the bottom plate portion of an example of the water stop device in the first embodiment. [Figure 7] FIG. 7(a) is an enlarged cross-sectional view showing the tip portion of the first protruding strip portion on the bottom plate portion of an example of the water stop device in the first embodiment, and FIG. 7(b) is an enlarged cross-sectional view showing the tip portion of the first protruding strip portion on the rising plate portion of the first example of the water stop device in the first embodiment. [Figure 8] FIG. 8(a) is a view showing the state before connecting an example of the water stop device in the first embodiment in the left-right direction, and FIG. 8(b) is a view showing the state after connecting an example of the water stop device in the first embodiment in the left-right direction. [Figure 9] FIG. 9 is a perspective view showing the state after connecting an example of the water stop device in the first embodiment in the left-right direction. [Figure 10] FIG. 10 is a perspective view showing a state in which a plurality of examples of the water stop device according to the first embodiment are stacked. [Figure 11] FIG. 11 is a perspective view showing the state after connecting an example of the water stop device in the second embodiment in the left-right direction.

Embodiments for Carrying out the Invention

[0021] The water-stopping device according to the embodiment will be described in detail below with reference to the drawings. In the following description, the vertical direction is referred to as Z, the direction perpendicular to the vertical direction Z is referred to as the front-rear direction X, and the direction perpendicular to both the vertical direction Z and the front-rear direction X is referred to as the left-right direction Y. Of the vertical direction Z, the upward direction is referred to as the upper side Z1, and the downward direction is referred to as the lower side Z2. Of the front-rear direction X, the side from which water enters is referred to as the front side X1, and the side on which the object to be prevented from entering, such as a house, is installed is referred to as the rear side X2. Furthermore, the area above the bottom plate portion 3 of the water-stopping device 1 Z1 and the area in front of the rising plate portion 4 of the water-stopping device 1 X1 are also referred to as the front side A, and the area below the bottom plate portion 3 of the water-stopping device 1 Z2 and the area behind the rising plate portion 4 of the water-stopping device 1 X2 are also referred to as the back side B.

[0022] (First embodiment: Water-stopping device 1) As shown in Figure 1, the water-stopping device 1 is used to prevent water from entering. Multiple water-stopping devices 1 are connected in the left-right direction Y.

[0023] As shown in Figure 2, the water-stopping device 1 comprises a main body 2 integrally molded from a single steel plate 10, and a water-stopping member 8 attached to the main body 2. The steel plate 10 is preferably a thin steel plate treated with corrosion-inhibiting treatment, such as galvanized steel. The thickness of the steel plate 10 is, for example, about 0.7 mm, but a thickness of about 0.6 mm to 1.2 mm is preferably used.

[0024] The main body 2 has a bottom plate 3, a rising plate 4, a connecting part 5, a first protrusion 6, a second protrusion 7, and a claw part 91. The main body 2 is formed in an L-shape in cross-section by the bottom plate 3 and the rising plate 4. The length of the main body 2 in the front-to-back direction X is, for example, about 700 mm, the length of the main body 2 in the left-to-right direction Y is, for example, about 740 mm, and the length of the main body 2 in the up-to-down direction Z is, for example, about 600 mm. As a result, the total weight of the water-stopping device 1 is about 6 kg.

[0025] The base plate portion 3 is positioned along the installation surface. The base plate portion 3 has a curved front portion 3a formed by folding the steel plate 10 from the front end to the rear end and curving it upwards. The curved front portion 3a is formed by curving the steel plate 10 on the surface side A into an arc shape, ellipse shape, horseshoe shape, etc. The base plate portion 3 has a flat portion 31 formed flat between the curved front portion 3a and the tip portion 61 of the front side X1 of the first protruding portion 6, which will be described later. A water-stopping member 8 is attached to the back side B of the flat portion 31.

[0026] As shown in Figure 3, the front end curved portion 3a has an upper locking portion 92 and a pair of lateral locking portions 93. The upper locking portion 92 is formed extending in the left-right direction Y. The lateral locking portions 93 are connected to the upper locking portion 92 and the end face 3b of the front end curved portion 3a and are formed extending in the up-down direction Z. The upper locking portion 92 and the pair of lateral locking portions 93 are slits formed by partially cutting out the front end curved portion 3a from the end face 3b. Although not shown, the upper locking portion 92 and the pair of lateral locking portions 93 may be holes formed in the front end curved portion 3a.

[0027] As shown in Figure 2, the claw portion 91 extends forward from the front end of the second connecting portion 54, which will be described later. The claw portion 91 is formed, for example, in a rectangular shape in plan view.

[0028] The rising plate portion 4 rises from the rear end of the bottom plate portion 3. The upper end of the rising plate portion 4 has an upper curved portion 4a formed by curving the steel plate 10 on the surface side A into an arc shape, ellipse shape, horseshoe shape, etc. The rising plate portion 4 has a handle portion 41 in the shape of an elongated hole, etc., near the upper end. The handle portion 41 is formed by a predetermined opening, such as a circular shape.

[0029] As shown in Figure 1, the connecting portion 5 is for connecting to other adjacent water-stopping devices 1 in the left-right direction Y. As shown in Figure 4, the connecting portion 5 has a first connecting portion 51 formed at one end in the left-right direction Y, and a second connecting portion 54 formed at the other end in the left-right direction Y. The first connecting portion 51 of one water-stopping device 1 is connected by overlapping the second connecting portion 54 of another water-stopping device 1 adjacent in the left-right direction Y.

[0030] The first connecting portion 51 has a side end folded portion 52 formed by folding the steel plate 10, and a male connecting portion 53 connected to the side end folded portion 52. The side end folded portion 52 is in contact with the bottom plate portion 3 and the rising plate portion 4. The side end folded portion 52 is continuously arranged in an L-shape when viewed from the left-right direction Y along the bottom plate portion 3 and the rising plate portion 4.

[0031] The male connecting portion 53 is formed by curving the steel plate 10 on the surface side A into an arc shape, ellipse shape, horseshoe shape, etc. The male connecting portion 53 is formed by curving the end of the steel plate 10 toward the side end folded portion 52. The male connecting portions 53 are arranged continuously in an L shape when viewed from the left-right direction Y along the bottom plate portion 3 and the rising plate portion 4.

[0032] The second connecting portion 54 has a receiving portion 55 connected to the bottom plate portion 3 and the rising plate portion 4, and a female connecting portion 56 connected to the receiving portion 55.

[0033] The receiving portion 55 is formed by bending the steel plate 10 into an L-shape when viewed from the front-to-back direction X or from the up-to-down direction Z. The receiving portion 55 is formed protruding from the surface side A. The receiving portion 55 is continuously arranged in an L-shape when viewed from the left-to-right direction Y along the bottom plate portion 3 and the rising plate portion 4. A water-stopping member 8 is attached to the back side B of the receiving portion 55.

[0034] The female connector 56 is formed in such a shape that the male connector 53 of another water-stopping device 1 adjacent to it in the left-right direction Y is fitted into it with some play in the left-right direction Y. The female connector 56 is provided on the bottom plate 3 and the rising plate 4, respectively. The female connector 56 is formed by bending the steel plate 10 into a U-shape when viewed from the front-rear direction X or from the up-down direction Z.

[0035] The female connecting portion 56 has a pair of plate portions 56a and 56c spaced wider apart than the width of the male connecting portion 53 in the left-right direction Y, and a connecting plate portion 56b that connects the pair of plate portions 56a and 56c. The female connecting portion 56 has a plate portion 56a formed by bending the steel plate 10 from the receiving portion 55, a connecting plate portion 56b formed by bending the steel plate 10 from the plate portion 56a, and a plate portion 56c formed by bending the steel plate 10 from the connecting plate portion 56b.

[0036] In the female connecting portion 56 provided on the rising plate portion 4, as shown in Figure 4(a), the plate portion 56a is formed to rise approximately perpendicular to the rising plate portion 4, the connecting plate portion 56b is formed along approximately parallel to the rising plate portion 4, and the plate portion 56c is formed by bending toward the rear side X2.

[0037] In the female connecting portion 56 provided on the bottom plate portion 3, as shown in Figure 4(b), the plate portion 56a is positioned approximately perpendicular to the bottom plate portion 3, the connecting plate portion 56b is positioned approximately parallel to the bottom plate portion 3, and the plate portion 56c is formed by bending downwards towards Z2.

[0038] The first connecting portion 51 may have either the male connecting portion 53 or the female connecting portion 56, while the second connecting portion 54 may have the other of the male connecting portion 53 or the female connecting portion 56.

[0039] Furthermore, the male connector 53 and the female connector 56 may be fitted together without any play in the left-right direction Y. In this case, the male connector 53 is in contact with both of the pair of plate portions 56a and 56c.

[0040] As shown in Figure 2, multiple first protrusions 6 are provided. As shown in Figure 5(a), the first protrusions 6 are arranged across the bottom plate portion 3 and the rising plate portion 4. The first protrusions 6 are arranged continuously along the bottom plate portion 3 and the rising plate portion 4 in an L-shape when viewed from the left-right direction Y. The first protrusions 6 are formed as protrusions on the surface side A by embossing the steel plate 10. As shown in Figure 6(a), the first protrusions 6 are formed projecting outwards from the surface side A in a semicircular shape in a cross-sectional view perpendicular to the rising plate portion 4. As shown in Figure 6(b), the first protrusions 6 are formed projecting outwards from the surface side A in a semicircular shape in a cross-sectional view perpendicular to the bottom plate portion 3.

[0041] As shown in Figure 2, multiple second protrusions 7 are provided. As shown in Figure 5(b), the second protrusions 7 are arranged across the bottom plate portion 3 and the rising plate portion 4. The second protrusions 7 are arranged continuously along the bottom plate portion 3 and the rising plate portion 4 in an L-shape when viewed from the left-right direction Y. The second protrusions 7 are formed as protrusions on the surface side A by embossing the steel plate 10. As shown in Figure 6(a), the second protrusions 7 are formed to protrude semicircularly on the surface side A in a cross-sectional view perpendicular to the rising plate portion 4. As shown in Figure 6(b), the second protrusions 7 are formed to protrude semicircularly on the surface side A in a cross-sectional view perpendicular to the bottom plate portion 3.

[0042] As shown in Figures 5 and 6, the projection length of the first protrusion 6 in the front-rear direction X is L1, the projection length of the first protrusion 6 in the up-down direction Z is H1, the projection width of the first protrusion 6 in the left-right direction Y is W1, and the projection height of the first protrusion 6 toward the surface side A is D1. Furthermore, the projection length of the second protrusion 7 in the front-rear direction X is L2, the projection length of the second protrusion 7 in the up-down direction Z is H2, the projection width of the second protrusion 7 in the left-right direction Y is W2, and the projection height of the second protrusion 7 toward the surface side A is D2.

[0043] The second protrusion 7 protrudes less than the first protrusion 6. Here, the second protrusion 7 protrudes less than the first protrusion 6 if the protruding extension L2 of the second protrusion 7 is less than the protruding extension L1 of the first protrusion 6, the protruding extension H2 of the second protrusion 7 is less than the protruding extension H1 of the first protrusion 6, the protruding width W2 of the second protrusion 7 is less than the protruding width W1 of the first protrusion 6, and the protruding height D2 of the second protrusion 7 is less than the protruding height D1 of the first protrusion 6.

[0044] As shown in Figure 7(a), the tip 61 of the front X1 of the first protrusion 6 is positioned spaced apart from the front end of the bottom plate 3. The tip 61 of the front X1 of the first protrusion 6 has a tapered portion 61a that is formed in a tapered shape.

[0045] As shown in Figure 7(b), the tip 62 of the upper Z1 of the first protrusion 6 is positioned spaced apart from the upper end of the rising plate 4. The tip 62 of the upper Z1 of the first protrusion 6 has a tapered portion 62a that is formed in a tapered shape.

[0046] The water-sealing member 8 is a well-known water-sealing member such as EPT sealer. The water-sealing member 8 is attached to the front end of the lower surface of the bottom plate portion 3 and to the back side B of the receiving portion 55.

[0047] The water-stopping member 8 attached to the bottom plate portion 3 is positioned extending in the left-right direction Y from the front end of the bottom plate portion 3. The water-stopping member 8 attached to the receiving portion 55 is positioned in an L-shape in cross-section when viewed from the left-right direction Y along the receiving portion 55.

[0048] (First embodiment: Method for connecting the water-stopping device 1) Next, a method for connecting one water-stopping device 1 and another water-stopping device 1 in the left-right direction Y will be described.

[0049] When connecting one water-stopping device 1 to another water-stopping device 1 in the left-right direction Y, the claw portion 91 of the other water-stopping device 1 is tilted downward and inserted below the upper locking portion 92 of the first water-stopping device 1. The claw portion 91 of the other water-stopping device 1 is positioned between the pair of lateral locking portions 93 of the first water-stopping device 1. When inserting the claw portion 91 below the upper locking portion 92, the rear end of the bottom plate portion 3 is raised, allowing the first connecting portion 51 of the first water-stopping device 1 and the second connecting portion 54 of the other water-stopping device 1 to face each other, as shown in Figure 8(a). Then, as shown in Figure 8(b), the second connecting portion 54 of the other water-stopping device 1 is superimposed on the first connecting portion 51 of the first water-stopping device 1 from the surface side A.

[0050] As shown in Figure 9, the upper locking portion 92 of one water-stopping device 1 is positioned above the claw portion 91 of the other water-stopping device 1. This allows the claw portion 91 to contact the upper locking portion 92 even when the other water-stopping device 1 is installed on an uneven surface and attempts to float up.

[0051] The front curved portion 3a extends downward from the upper locking portion 92 and has a pair of lateral locking portions 93 spaced further apart than the width of the claw portion 91 in the left-right direction Y. As a result, the pair of lateral locking portions 93 of one water-stopping device 1 are positioned on both sides of the claw portion 91 of the other water-stopping device 1 in the left-right direction Y. Therefore, even if the water-stopping device 1 tries to shift in the left-right direction Y due to unevenness of the installation surface, the claw portion 91 can be brought into contact with the lateral locking portions 93.

[0052] A water-stopping member 8 attached to the receiving portion 55 of the other water-stopping device 1 comes into contact with the side end folded portion 52 of one water-stopping device 1. At this time, the bottom plate portion 3 of one water-stopping device 1 and the bottom plate portion 3 of the other water-stopping device 1 are flush. Although not shown in the illustration, the rising plate portion 4 of one water-stopping device 1 and the rising plate portion 4 of the other water-stopping device 1 are similarly flush.

[0053] Furthermore, the female connector 56 is formed in a shape that allows the male connector 53 of another water-stopping device 1 to be loosely fitted. As a result, when the second connector 54 of another water-stopping device 1 is connected to the first connector 51 of one water-stopping device 1 by overlapping it from the surface side A, even if the water-stopping device 1 tries to shift in the left-right direction Y due to unevenness of the installation surface, the female connector 56 can suppress the shift of the male connector 53 in the left-right direction Y.

[0054] According to this embodiment, the second connecting portion 54 has a claw portion 91 extending forward from its front end, the first connecting portion 51 is connected to the second connecting portion 54 of other water-stopping devices 1 adjacent to each other in the left-right direction Y by overlapping them, and the bottom plate portion 3 has a front end curved portion 3a which is curved by folding the front end side back toward the rear end side, and the front end curved portion 3a has an upper locking portion 92 which is positioned above the claw portion 91 of the other water-stopping device 1 adjacent to each other in the left-right direction Y. As a result, even if the other water-stopping device 1 tries to float up due to unevenness of the installation surface, the claw portion 91 can be brought into contact with the upper locking portion 92. Therefore, the connected state of the first connecting portion 51 and the second connecting portion 54 which are overlapped and connected to each other can be maintained, and the water-stopping effect can be improved.

[0055] Furthermore, according to this embodiment, even if the water-stopping device 1 attempts to float up due to water ingress from the surface side A, the claw portion 91 can be brought into contact with the upper locking portion 92. This allows the connection state between the first connecting portion 51 and the second connecting portion 54, which are overlapped and connected to each other, to be maintained, thereby improving water-stopping performance.

[0056] According to this embodiment, the front end curved portion 3a extends downward from the upper locking portion 92 and has a pair of lateral locking portions 93 spaced further apart than the width of the claw portion 91 in the left-right direction Y. As a result, the pair of lateral locking portions 93 of one water-stopping device 1 are positioned on both sides of the claw portion 91 of the other water-stopping device 1 in the left-right direction Y. Therefore, even if the water-stopping device 1 tries to shift in the left-right direction Y due to unevenness of the installation surface, the claw portion 91 can be brought into contact with the lateral locking portions 93. As a result, the shift of the claw portion 91 in the left-right direction Y can be suppressed. Consequently, the connected state of the first connecting portion 51 and the second connecting portion 54, which are overlapped and connected to each other, can be maintained, and the water-stopping performance can be improved.

[0057] Furthermore, according to this embodiment, even if the water-stopping device 1 attempts to shift in the left-right direction Y due to water ingress from the surface side A, the claw portion 91 can be brought into contact with the lateral locking portion 93. As a result, the connected state of the first connecting portion 51 and the second connecting portion 54, which are connected by overlapping each other, can be maintained, thereby improving water-stopping performance.

[0058] Furthermore, according to this embodiment, when connecting one water-stopping device 1 adjacent to another water-stopping device 1 in the left-right direction Y, the claw portion 91 of the other water-stopping device 1 can be inserted between the pair of lateral locking portions 93 of the first water-stopping device 1. In other words, the pair of lateral locking portions 93 can function as guides when inserting the claw portion 91. This makes the connection work of the water-stopping devices 1 easier.

[0059] According to this embodiment, the first connecting portion 51 has either a male connecting portion 53 or a female connecting portion 56, the second connecting portion 54 has either the male connecting portion 53 or the female connecting portion 56, and the female connecting portion 56 is formed in a shape that allows the male connecting portion of another water-stopping device 1 to be loosely fitted. As a result, even if the water-stopping device 1 tries to shift in the left-right direction Y due to unevenness of the installation surface, the female connecting portion 56 can suppress the shift of the male connecting portion 53 in the left-right direction Y. Therefore, the connected state of the first connecting portion 51 and the second connecting portion 54, which are connected by overlapping each other, can be maintained, and the water-stopping performance can be improved.

[0060] According to this embodiment, the water-stopping device 1 for preventing water ingress comprises a main body portion 2 integrally molded from a single steel plate 10, the main body portion 2 having a bottom plate portion 3 arranged along the installation surface, a rising plate portion 4 rising from the rear end of the bottom plate portion 3, a connecting portion 5 at the end in the left-right direction Y for connecting to other water-stopping devices 1 adjacent in the left-right direction Y, and a first protruding portion 6 arranged across the bottom plate portion 3 and the rising plate portion 4 and formed as a protrusion along the bottom plate portion 3 and the rising plate portion 4.

[0061] According to this embodiment, the main body 2 is integrally molded from a single steel plate 10. This makes it easy to manufacture the water-stopping device 1. Furthermore, it is possible to ensure the necessary strength for the water-stopping device 1.

[0062] Furthermore, according to this embodiment, the main body 2 can be reinforced by the first protrusion 6. Therefore, when water attempts to enter, deformation of the water-stopping device 1 is suppressed, thus preventing water intrusion and improving water-stopping properties.

[0063] Furthermore, according to this embodiment, since the first protrusion 6 is formed as a protrusion along the bottom plate 3 and the rising plate 4, deformation such as wrinkles occurring in the bottom plate 3 and the rising plate 4 can be suppressed by forming the first protrusion 6. As a result, water leakage from the water-stopping device 1 is suppressed, and the water-stopping properties of the water-stopping device 1 can be improved.

[0064] Furthermore, according to this embodiment, since the first protruding portion 6 is formed as a protrusion along the bottom plate portion 3 and the rising plate portion 4, it is not necessary to increase the protruding height D1 of the first protruding portion 6 as in the conventional method when reinforcing the main body portion 2. This makes it possible to improve transportability.

[0065] Furthermore, according to this embodiment, the total weight of the water-stopping device 1 can be reduced to, for example, about 6 kg. This makes it possible to improve portability.

[0066] Furthermore, according to this embodiment, as shown in Figure 10, multiple water-stopping devices 1 can be stacked. This reduces the space required to store multiple water-stopping devices 1. In addition, multiple water-stopping devices 1 can be transported while stacked.

[0067] According to this embodiment, the main body 2 is positioned across the bottom plate 3 and the rising plate 4, and further has a second protruding portion 7 that is formed in the shape of a ridge along the bottom plate 3 and the rising plate 4, the second protruding portion 7 protruding less than the first protruding portion 6. As a result, deformation such as wrinkles that occur in the bottom plate 3 and the rising plate 4 due to the formation of the first protruding portion 6 can be further suppressed by the second protruding portion 7, which is smaller than the first protruding portion 6. Therefore, water leakage from the water-stopping device 1 is suppressed, and the water-stopping performance of the water-stopping device 1 can be further improved.

[0068] According to this embodiment, the tip portion 61 of the first protrusion portion 6 in the bottom plate portion 3 is positioned spaced apart from the front end of the bottom plate portion 3 and has a tapered portion 61a. This makes the shape of the transition from the bottom plate portion 3 to the first protrusion portion 6 gentler, and further suppresses deformation such as wrinkles that occur in the bottom plate portion 3 due to the formation of the first protrusion portion 6. As a result, water leakage from the water-stopping device 1 is suppressed, and the water-stopping performance of the water-stopping device 1 can be further improved.

[0069] Furthermore, according to this embodiment, the tip 61 of the first protrusion 6 on the bottom plate portion 3 is positioned spaced apart from the front end of the bottom plate portion 3. As a result, the flat portion 31 of the bottom plate portion 3 can suppress water leakage from the lower surface of the bottom plate portion 3. Therefore, the water-stopping performance of the water-stopping device 1 can be further improved.

[0070] According to this embodiment, the connecting portion 5 has a first connecting portion 51 formed at one end in the left-right direction Y, and a second connecting portion 54 formed at the other end in the left-right direction Y. The first connecting portion 51 has a male connecting portion 53 formed by curving the steel plate 10 toward the surface side A, and the second connecting portion 54 has a female connecting portion 56 formed in a shape that allows the male connecting portion 53 of another water-stopping device 1 adjacent to it in the left-right direction Y to be fitted in without any play. As a result, the male connecting portion 53 and the female connecting portion 56 can be fitted together by overlapping the female connecting portion 56 with the male connecting portion 53 from the surface side A toward the back side B. Therefore, it is possible to strengthen the connection between the first connecting portion 51 and the second connecting portion 54.

[0071] According to this embodiment, the male connector 53 is formed by curving the steel plate 10 toward the surface side A. This makes it possible to smoothly fit the curved male connector 53 and the female connector 56 together.

[0072] According to this embodiment, the female connecting portion 56 has a plate portion 56a formed by bending the steel plate 10 toward the surface side A, a connecting plate portion 56b formed by bending from the plate portion 56a, and a plate portion 56c formed by bending from the connecting plate portion 56b toward the plate portion 56a. As a result, the male connecting portion 53 is fitted into contact with the plate portion 56a and the plate portion 56c. Therefore, it is possible to make the fitting between the male connecting portion 53 and the female connecting portion 56 stronger.

[0073] According to this embodiment, the second connecting portion 54 has a receiving portion 55 formed by the steel plate 10 protruding from the surface side A, and a water-stopping member 8 is attached to the back side B of the receiving portion 55. This makes it possible to prevent water leakage from the connection between the first connecting portion 51 and the second connecting portion 54.

[0074] According to this embodiment, a water-stopping member 8 is attached to the front end of the lower surface of the bottom plate portion 3. This makes it possible to prevent water leakage from the lower surface of the bottom plate portion 3.

[0075] (Second embodiment: Water-stopping device 1) Next, the water-stopping device 1 in the second embodiment will be described. Detailed explanations of the configuration, which is the same as in the first embodiment, will be omitted below.

[0076] As shown in Figure 11, the upper locking portion 92 of the water-stopping device 1 is the end face 3b of the front curved portion 3a.

[0077] In particular, according to this embodiment, the upper locking portion 92 is the end face 3b of the front curved portion 3a. This makes it possible to manufacture the product without forming a slit in the front curved portion 3a. Therefore, it is possible to improve manufacturing efficiency.

[0078] While embodiments of this invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. Furthermore, this invention can be implemented in various novel forms in addition to the embodiments described above. Therefore, the above embodiments can be omitted, replaced, or modified in various ways without departing from the spirit of this invention. Such novel forms and modifications are included in the scope and spirit of this invention, as well as in the claims and equivalents of the claims. [Explanation of Symbols]

[0079] 1: Water-stopping device 10: Steel plate 2: Main body 3: Bottom plate part 3a: Front end curved section 3b: End face 31: Flat part 4: Rising plate section 4a: Upper curved section 41: Handle section 5:Connection part 51: 1st connection part 52: Side edge folded portion 53: Male side connection part 54:Second connection part 55: Receiving Department 56: Female connector 56a: Plate part 56b: Connecting plate section 56c: Plate part 6: First protrusion 61:Tip 61a: Tapered section 62:Tip 62a: Tapered section 7: Second protrusion 8: Water-stopping component 91: Nail area 92: Upper locking part 93: Side locking section A: Surface side B: Reverse side X: Anteroposterior direction Y: Left / right direction Z: Vertical direction

Claims

1. A water-stopping device for preventing flooding, It features a main body that is integrally molded from a single sheet of steel. The main body is, A base plate that is positioned along the mounting surface, A rising plate portion that rises from the rear end of the bottom plate portion, A first connecting portion formed at one end in the left-right direction, A second connecting portion formed at the other end in the left-right direction, It has a claw portion extending forward from the front end of the second connecting portion, The first connecting portion is connected by overlapping the second connecting portions of other water-stopping devices adjacent to each other in the left-right direction. The bottom plate portion has a curved front end portion that is curved upwards at the front end. The aforementioned curved front end portion has an upper locking portion positioned above the claw portion of another adjacent water-stopping device in the left-right direction. The upper locking portion is the end face of the curved front portion. A water-stopping device characterized by the following.

2. The first connecting portion has either a male connecting portion or a female connecting portion. The second connecting portion has the other of either the male connecting portion or the female connecting portion. The female connector is formed in such a shape that the male connector of another water-stopping device is loosely fitted into it. A water-stopping device according to claim 1, characterized by the following:

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