JP6225343B2 - Water shielding device - Google Patents

Description

  The present invention relates to a water shielding device that blocks the flow of water toward a residential area or the like during a tsunami or flood.

  An example of a conventional water shielding device is described in Patent Document 1. This water-impervious device has an underground pit formed below the ground surface, and a floating and tide plate (that is, a water-impervious wall) housed in the underground pit. A side end of the tide plate is disposed between two opposing wall surfaces of the rail extending in the vertical direction. One of the two wall surfaces is formed into a tapered surface so that the interval between the two wall surfaces becomes narrower as it goes upward. A rubber packing (that is, a water stop portion) is attached to the other of the two wall surfaces over the entire length in the vertical direction. When water flows into the underground pit, it floats and the tide plate rises due to the buoyancy of the water, and the tide plate rises along the rail. At this time, the tide plate is pushed against the tapered surface and pressed against the rubber packing.

JP-A-7-197751

  In the water-impervious device described in Patent Document 1, when the tide plate floats, the tide plate comes into contact with the rubber packing, which may damage the rubber packing or prevent the rise of the tide plate. .

  The present invention has been made in order to solve the above-described problem, and an object of the present invention is to provide a water shielding device that can prevent the water stop portion from being damaged or the rise of the water shielding wall from being hindered. To do.

In order to solve the above problems, a water-impervious device according to the present invention is stored in a water storage tank disposed below a road surface and inside the water storage tank so as to be able to appear and disappear from the road surface, and the road surface is disposed in a predetermined direction. A water blocking wall that blocks the flow of water flowing in the state of protruding from the road surface, and a floating portion that protrudes from the road surface by receiving buoyancy from the water stored in the water storage tank And at least one of a support portion that supports a side end portion of the impermeable wall protruding from the road surface, a first surface on the downstream side in the predetermined direction of the impermeable wall, and a second surface of the support portion that faces the first surface. A first water stop portion extending in the vertical direction on one side, a guide portion provided in the support portion for guiding the water shielding wall in the vertical direction between the lowest position and the highest position; Receiving the upward force from the impermeable wall, A pressing mechanism that generates a pressing force that presses the water-impervious wall located in a predetermined direction, and the guide portion is configured to move the water-impervious wall when the impermeable wall moves upward from the lowest position. A contact suppressing portion that suppresses at least the other of the first surface and the second surface from contacting the first water stop portion by suppressing the movement of the water wall in the predetermined direction; By allowing the impermeable wall to move in the predetermined direction when the water wall reaches the uppermost position, at least the other of the first surface and the second surface becomes the first water stop portion. A contact permitting portion that allows contact, a first wall portion that extends in the up-down direction, and the first wall portion on the upstream side of the first wall portion in the predetermined direction so as to face the first wall portion. A second wall portion extending in the vertical direction The impermeable wall is provided on the impermeable wall main body having the first surface and the impermeable wall main body, and is movable up and down between the first wall portion and the second wall portion. And the abutting suppression portion is constituted by a first portion of the wall surface of the first wall portion, and the abutting permission portion is defined by the first wall. It is comprised by the 2nd part of the wall surface of a part, and the said 2nd part has shifted | deviated to the up-down direction with respect to the said 1st part, and is arrange | positioned in the downstream of the said predetermined direction, It is characterized by the above-mentioned.

  In this configuration, when the impermeable wall moves upward from the lowest position, at least the other of the first surface and the second surface is prevented from contacting the first water stop portion by the contact suppressing portion. When the impermeable wall is positioned at the uppermost position, the impermeable wall is pressed in a predetermined direction by the pressing force generated by the pressing mechanism, and at least the other of the first surface and the second surface is in contact with the first water stop portion. Is done.

  According to the water-impervious device according to the present invention, when the impermeable wall rises, it is possible to prevent the water-stopping portion from being damaged or preventing the impermeable wall from being raised.

It is sectional drawing which shows the structure of the water shielding apparatus which concerns on embodiment. It is a perspective view which shows the structure of the water shielding apparatus which concerns on embodiment. It is a perspective view which shows a support part, a guide part, and a press mechanism. It is the perspective view which looked at the impermeable wall, the floating part, and the water stop part from the downstream of the flow of water. It is the perspective view which looked at the impermeable wall and the floating part from the upstream of the flow of water. It is a side view which shows a support part, a guide part, and a press mechanism. It is a top view which shows a support part, a guide part, and a water-impervious wall. It is sectional drawing which shows the positional relationship of a water shielding wall and a support part when a water shielding wall is located in the uppermost position. It is a top view which shows the positional relationship of a water shielding wall and a support part when a water shielding wall is located in the uppermost position. It is a side view which shows the structure of the press mechanism in other embodiment. It is sectional drawing which shows the state of a press mechanism when the impermeable wall in other embodiment raises an intermediate area. It is sectional drawing which shows the state of a press mechanism when the impermeable wall in other embodiment is located in the uppermost position. It is a perspective view which shows the structure of a contact position adjustment mechanism. It is a perspective view which shows the structure of another inclined surface structural member.

  Hereinafter, a preferred embodiment of a water shielding device according to the present invention will be described with reference to the drawings.

  The water shielding device 10 shown in FIG. 1 and FIG. 2 blocks the flow of water flowing on the road surface G during a tsunami or flood. The road surface G of this embodiment is the ground surface. However, the floor surface of the building may be the road surface G. In the following description, a direction in which water flows on the road surface G is referred to as a “first direction”, and a direction orthogonal to the first direction in the horizontal plane is referred to as a “second direction”. Further, the upstream side of the flow of water flowing in the first direction is “front”, the downstream side is “rear”, the right side when the water shielding device 10 is viewed from the front is “right”, and the left side is “left”. The “front-rear direction” matches the “first direction”, and the “left-right direction” matches the “second direction”. The “first direction” and the “second direction” are predetermined “predetermined directions”.

  As shown in FIG. 1, the water shielding device 10 is provided integrally with a water storage tank 12 disposed below the road surface G, a water shielding wall 14 accommodated in the water storage tank 12, and the water shielding wall 14. The floating portion 16 is provided. As shown in FIG. 2, the water shielding device 10 includes a pair of left and right support portions 18 that support the water shielding wall 14 when it protrudes from the road surface G, and a gap between the water shielding wall 14 and the support portion 18. A first water blocking portion 20 that seals the water, a second water blocking portion 22 that seals a gap between the water blocking wall 14 and the water storage tank 12 (FIG. 1), and a guide that guides the water blocking wall 14 in the vertical direction. A portion 24 and a pressing mechanism 26 are provided.

  In the following description, the position of the impermeable wall 14 when the impermeable wall 14 is lowered most is the “lowermost position”, and the position of the impermeable wall 14 when the impermeable wall 14 is most elevated is the “uppermost position”. And Further, an area above the lowermost position and below the uppermost position is defined as an “intermediate area”. 1 and 2 show a state in which the impermeable wall 14 is in the lowest position, and FIGS. 6 and 7 show a state in which the impermeable wall 14 is in the intermediate region, and FIG. 8 and FIG. Shows a state where the impermeable wall 14 is in the uppermost position.

  The water tank 12 shown in FIG. 1 is a casing-like member that stores water flowing from the sea or river during a tsunami or flood. The water storage tank 12 of the present embodiment is formed in a rectangular parallelepiped shape extending in the left-right direction, and is embedded under the passage R so as to cross the passage R through which people and vehicles pass. As shown in FIG. 1, an opening 12 a that forms an opening Q on the road surface G is formed at the upper end of the water tank 12. The opening 12a is formed in a rectangular shape that extends in the left-right direction in plan view, and a lid 28 that closes a part of the opening Q is attached to the front of the opening 12a.

  As shown in FIG. 1, a water intake 30 is formed in the upper part of the front side wall 12b of the water storage tank 12, and a water discharge port 32 is formed in the lower part of the front side wall 12b. Further, in front of the water tank 12, a water conduit 34 that guides water flowing from the water source X such as the sea or a river to the water inlet 30, and water discharged from the drain outlet 32 is guided to the water source X or a sewer pipe. A drainage channel 36 is provided. The water conduit 34 has a groove 34a formed on the road surface G, and a lid 34b is attached to the groove 34a. The drainage channel 36 includes a drainage chamber 38 provided in front of the drainage port 32, a first pipeline 40 a provided from the drainage chamber 38 toward the road surface G, and a second pipeline provided along the road surface G. 40b. A drainage pump 42 is disposed in the drainage chamber 38, and a discharge port 42a of the drainage pump 42 is connected to the first conduit 40a.

  Each support portion 18 shown in FIG. 2 is a member that supports the side end portion of the impermeable wall 14 protruding from the road surface G. Each support part 18 has a square columnar support part body 44 provided so as to protrude upward from the road surface G outside the lateral end of the water storage tank 12. As shown in FIG. 3, a first wall portion 46 and a second wall portion 48 that protrude in the left-right direction are provided on the side surface 44 a on the water storage tank 12 (FIG. 1) side of the support body 44. ) And extending in the vertical direction at intervals. A space formed between the first wall portion 46 and the second wall portion 48 is an accommodation space S1 that accommodates a side end portion of the impermeable wall 14 (FIG. 1). As shown in FIG. 1, a lid 50 that covers the accommodation space S <b> 1 is detachably attached to the upper surface 44 b of the support portion main body 44. The accommodation space S1 communicates with the internal space S2 of the water storage tank 12 (FIG. 1) at the lower end thereof. In a state where the lid 50 is removed from the support portion 18, the accommodation space S1 communicates with the external space S3 at the upper end portion. The side end of the impermeable wall 14 (FIG. 1) is accommodated from above in the accommodation space S1 in a state where the lid 50 is removed.

  As shown in FIGS. 4 and 5, the impermeable wall 14 includes a casing-shaped impermeable wall main body 52, a plate-shaped lid 54, and a plurality (six in this embodiment) of guided portions 56. have. The interior of the impermeable wall main body 52 is filled with a filler (not shown) such as foamed resin. As shown in FIG. 4, the first surface 58 a on the downstream side (rear side) in the first direction (FIG. 1) in the impermeable wall body 52 is a flat surface extending in the vertical direction. As shown in FIG. 5, the third surface 58b on the upstream side (front side) in the first direction (FIG. 1) in the impermeable wall body 52 is perpendicular to the vertical line so as to approach the first surface 58a toward the upper end. It has the 1st inclined surface 60 which inclines. The third surface 58b is a water shielding surface that blocks the flow of water flowing in the first direction (FIG. 1). The left side surface 58c and the right side surface 58d of the impermeable wall main body 52 are formed to be orthogonal to the left-right direction. The lower surface 58e and the upper surface 58f of the impermeable wall main body 52 are formed to extend in the horizontal direction. The vertical dimension of the impermeable wall body 52 is designed to be shorter than the vertical dimension of the internal space S <b> 2 (FIG. 1) of the water storage tank 12.

  As shown in FIGS. 4 and 5, the floating portion 16 protrudes from the road surface G (FIG. 1) by rising by receiving buoyancy from the water stored in the water storage tank 12 (FIG. 1). It is a part to be formed, and is integrally formed at the lower end of the impermeable wall 14. As shown in FIG. 5, a rectangular parallelepiped volume expansion portion 16a extending in the left-right direction is formed in a pair at the lower end portion of the water shielding wall 14, and the lower end portion of the water shielding wall 14 and the volume expansion portion 16a Are integrally formed to form the floating portion 16. The volume enlargement portion 16a is not formed at the side end portion of the water shielding wall 14 in the left-right direction, and this side end portion is disposed in the accommodation space S1 (FIG. 3).

  As shown in FIGS. 4 and 5, the upper surface 58 f of the impermeable wall 14 is provided with a lid 54 that opens and closes the opening Q (FIG. 1) according to the raising and lowering operation of the impermeable wall 14 and the floating portion 16. Yes. The lid body 54 is a rectangular plate-like member extending in the left-right direction in plan view, and has a function of suspending the water shielding wall 14 and the floating portion 16 in the internal space S2 of the water storage tank 12 (FIG. 1). The lateral dimension of the lid 54 is designed to be shorter than the dimension between the two support portions 18 (FIG. 2). As shown in FIG. 1, the front-rear dimension of the lid 54 is designed to be longer than the front-rear dimension of the opening Q in a state where the lid 28 is attached to the opening 12a.

  As shown in FIGS. 4 and 5, the guided portion 56 is a portion that is guided in the vertical direction by the guide portion 24, and protrudes in the second direction (left-right direction) from the side end portion of the impermeable wall body 52. Is formed. In the present embodiment, three guided portions 56 are provided in an example in the vertical direction on each of the left side surface 58c and the right side surface 58d of the impermeable wall main body 52. As shown in FIG. 7, each guided portion 56 includes a shaft 56a extending in the second direction (left-right direction) from the side surfaces 58c and 58d (FIGS. 4 and 5) of the impermeable wall main body 52, and a tip portion of the shaft 56a. And a roller 56b rotatably attached to the roller. The roller 56 b is disposed in the accommodation space S <b> 4 formed between the pair of wall portions 72 and 74 that constitute the guide portion 24. When the impermeable wall 14 is raised or lowered, the movement of the roller 56b in the front-rear direction is restricted by the pair of wall portions 72 and 74.

  As shown in FIG. 1, the impermeable wall 14 is accommodated in the internal space S <b> 2 of the water storage tank 12 so as to be able to appear and disappear in the vertical direction from the road surface G. The water tank 12 is accommodated in the internal space S2. In a state where the water shielding wall 14 is completely accommodated in the internal space S2 of the water storage tank 12, that is, in a state where the water shielding wall 14 is at the lowest position, the rear end portion of the lid 54 contacts the rear upper surface of the water storage tank 12. In addition, the front end portion of the lid body 54 is brought into contact with the upper surface of the front portion of the water storage tank 12. In this state, the impermeable wall 14 and the floating portion 16 are suspended in the internal space S2 by the lid body 54, and a drainage space S5 communicating with the drainage chamber 38 is formed below the impermeable wall 14. The drain port 32 shown in FIG. 1 is provided so as to correspond to the drainage space S5.

  As shown in FIG. 4, the 1st water stop part 20 and the 2nd water stop part 22 are sealing materials which consist of elastic materials, such as rubber | gum. The first water stop 20 on the left side is provided in a linear shape extending in the vertical direction at the left end of the first surface 58a. The first water stop 20 on the right side extends in the vertical direction at the right end of the first surface 58a and is provided in a linear shape. The 2nd water stop part 22 is extended in the horizontal direction (left-right direction) on the 1st surface 58a so that the lower end part of the 1st water stop part 20 of right and left both sides may be connected, and is provided in linear form. Moreover, the dimension (height) of the front-back direction of the 1st water stop part 20 and the 2nd water stop part 22 of right-and-left both sides is designed all the same.

  As shown in FIG. 6 and FIG. 7, the front side surface of the first wall portion 46 in the support portion 18 has the first water stop portion 20 in a state where the side end portion of the water shielding wall 14 is disposed in the accommodation space S1. It becomes the 2nd surface 62 which opposes the 1st surface 58a of the impermeable wall 14 via. Moreover, as shown in FIG. 1, the inner side surface of the rear side wall 12 c in the water storage tank 12 becomes a fourth surface 64 that faces the first surface 58 a of the impermeable wall 14 via the second water blocking portion 22. . As shown in FIG. 1, in the present embodiment, the second surface 62 and the fourth surface 64 are formed so as to be flush with each other, whereby the distance between the first surface 58 a and the second surface 62 and The distance between the first surface 58a and the fourth surface 64 is substantially the same.

  The guide part 24 shown in FIG. 1 is a part which guides the water-impervious wall 14 in the vertical direction between the lowest position and the highest position. As shown in FIG. 7, the guide portion 24 extends in the vertical direction on the side surface 44 a of the support portion main body 44 in the support portion 18 and the side surface 66 (FIG. 1) of the water storage tank 12 that is flush with the side surface 44 a. The formed groove 70 and a pair of wall portions 72 and 74 provided on the inner surface of the groove 70 are provided. As shown in FIG. 6, the guide portion 24 includes a first contact suppression portion 76, a contact permission portion 78, a proximity permission portion 80, and a separation permission portion 82.

  As shown in FIG. 7, the groove 70 has a pair of side surfaces 70a and 70b facing each other in the front-rear direction, and a first wall 72 is provided on the first side surface 70a located on the rear side. The 2nd wall part 74 is provided in the 2nd side surface 70b located in the front side. The 1st wall part 72 and the 2nd wall part 74 have mutually opposed in the 1st direction (front-back direction). The groove 70 is continuously formed from the upper end of the side surface 44 a of the support portion main body 44 to the lower end of the side surface 66 (FIG. 1) of the water storage tank 12. The first wall portion 72 is provided over the entire length of the first side surface 70a, and the second wall portion 74 is provided over the entire length of the second side surface 70b.

  As shown in FIG. 7, the first wall portion 72 has a plate-like first wall portion main body 72a extending in the vertical direction and a plate-like first locking portion 72b extending in the vertical direction. Are integrally formed so as to be L-shaped in plan view. The first wall portion main body 72 a is disposed on the first side surface 70 a, and the first locking portion 72 b is disposed on the opening P of the groove 70. In addition, the first wall portion 72 has a wall surface constituting member 84 that constitutes a front wall surface W of the first wall portion 72, and the wall surface constituting member 84 is joined to the front side surface of the first wall portion main body 72a. Yes.

  As shown in FIG. 6, the first contact suppression portion 76, the contact allowance portion 78, the proximity allowance portion 80, and the separation allowance portion 82 are configured by portions of the wall surface W of the first wall portion 72. In the present embodiment, by changing the dimension (thickness) in the first direction of the wall surface constituting member 84 in the up and down direction, the first contact suppressing portion 76, the contact allowing portion 78, the proximity allowing portion 80, and the separation allowing portion 82. Each part which comprises each of these is formed.

  The first contact suppression unit 76 illustrated in FIG. 6 suppresses the impermeable wall 14 from moving in the first direction when the impermeable wall 14 moves in the vertical direction below the uppermost intermediate region. Thus, the second surface 62 is a portion that suppresses contact with the first water stop portion 20. The first contact suppression portion 76 is configured by a portion (first portion) having the largest dimension (thickness) in the front-rear direction (first direction) of the wall surface constituting member 84. In the present embodiment, each of the three first contact suppression portions 76 is formed to extend in the vertical direction and be spaced from each other. When each guided portion 56 of the impermeable wall 14 abuts on the first abutment restraining portion 76, the first surface 58 a is restrained from approaching the second surface 62 and the fourth surface 64 (FIG. 1). . Thereby, it is suppressed that the 2nd surface 62 contact | abuts to the 1st water stop part 20, and it is suppressed that the 4th surface 64 (FIG. 1) contact | abuts to the 2nd water stop part 22 (FIG. 1). The

  The contact allowing portion 78 shown in FIG. 6 allows the second surface 62 to move to the first stop by allowing the impermeable wall 14 to move in the first direction when the impermeable wall 14 reaches the uppermost position. It is a part which contacts the water part 20 and permits the fourth surface 64 (FIG. 1) to contact the second water stop part 22 (FIG. 1) (see FIG. 8). The contact allowance portion 78 is configured by a portion (second portion) having the smallest dimension (thickness) in the front-rear direction (first direction) of the wall surface constituting member 84. The second portion constituting the contact allowance portion 78 of the wall surface W of the first wall portion 72 is shifted in the vertical direction with respect to the first portion constituting the first contact suppression portion 76 of the wall surface W and is first. It is arranged downstream in the direction. In the present embodiment, the three first abutting restraints are arranged so that the three guided portions 56 that have been raised by being guided by the three first abutting restraining portions 76 can be arranged in the three abutting allowance portions 78. A contact allowing portion 78 is provided above each of the portions 76.

  6 is a portion that allows the first surface 58a to gradually approach the second surface 62 and the fourth surface 64 (FIG. 1) when the impermeable wall 14 rises in the intermediate region. It is. In the present embodiment, the proximity allowance portion 80 is formed above each first contact suppression portion 76 and below each contact allowance portion 78. Each proximity allowing portion 80 is formed by inclining the front side surface (wall surface W) of the wall surface constituting member 84 so as to approach the second surface 62 as it faces upward. The inclination angle of the inclined surface of the proximity allowing portion 80 with respect to the vertical surface is designed to be parallel to each of the first inclined surface 60 of the impermeable wall 14 and the second inclined surfaces 90 and 92 of the pressing mechanism 26. The height (vertical direction position) of the starting point (lower end) of each proximity allowing portion 80 is determined when the first inclined surface 60 of the impermeable wall 14 contacts the second inclined surfaces 90 and 92 of the pressing mechanism 26 from below. In addition, each guided portion 56 of the impermeable wall 14 is designed to be located at the starting point.

  6 allows the first surface 58a to gradually move away from the second surface 62 and the fourth surface 64 (FIG. 1) when the impermeable wall 14 rises in the intermediate region. Part. In the present embodiment, a separation allowance portion 82 is formed below each first contact suppression portion 76 and above the contact allowance portion 78. Each separation allowing portion 82 is formed by inclining the front side surface (wall surface W) of the wall surface constituting member 84 so as to separate from the second surface 62 as it faces upward.

  As shown in FIG. 7, the distance in the front-rear direction (first direction) from the second surface 62 and the fourth surface 64 (FIG. 1) to the wall surface W of the first wall portion 72 is M1, and the first surface 58a is covered. The distance in the front-rear direction to the guide part 56 (roller 56b) is M2, and the dimension in the front-rear direction in the natural state (uncompressed state) of the first water stop part 20 and the second water stop part 22 (FIG. 4) ( Assuming that the height (M3) is M3, the first contact suppression portion 76 (FIG. 6) is formed by determining the dimension (thickness) in the front-rear direction of the wall surface constituting member 84 so as to satisfy “M1> M2 + M3”. . Further, the contact allowance portion 78 (FIG. 6) is formed by determining the dimension (thickness) in the front-rear direction of the wall surface constituting member 84 so as to satisfy “M1 <M2 + M3”. Then, by gradually changing the dimension (thickness) in the front-rear direction of the wall surface constituting member 84 between the first contact suppressing portion 76 and the contact allowable portion 78, the proximity allowable portion 80 and the separation allowable portion 82 (FIG. 6) is formed. The dimension (thickness) of the front-back direction of the part (1st part) which comprises the 1st contact suppression part 76 in the wall surface structural member 84 of the 1st water stop part 20 and the 2nd water stop part 22 (FIG. 4). It is set larger than the height M3.

  As shown in FIG. 7, the second wall portion 74 includes a plate-like second wall portion main body 74 a extending in the vertical direction and a plate-like second locking portion 74 b extending in the vertical direction. Are integrally formed so as to be L-shaped in plan view. The second wall portion main body 74 a is disposed on the second side surface 70 b, and the second locking portion 74 b is disposed on the opening P of the groove 70. In the present embodiment, the second wall portion main body 74a suppresses the impermeable wall 14 from coming into contact with the pressing mechanism 26 when the impermeable wall 14 moves in the vertical direction below the uppermost intermediate region. It functions as a “second contact suppressing portion”. That is, the second wall portion 74 of the guide portion 24 has a “second contact suppression portion”.

  As shown in FIG. 7, the distance between the first locking portion 72b and the second locking portion 74b is longer than the diameter of the shaft 56a in the guided portion 56 and shorter than the diameter of the roller 56b. Designed. In a state where the lid 50 is removed from the support portion 18, the accommodation space S4 formed between the pair of wall portions 72 and 74 communicates with the external space S3 (FIG. 3) at the upper end portion. The guided portion 56 is accommodated in the accommodating space S4 from above the guide portion 24.

  When the impermeable wall 14 protrudes from the road surface G, the pressing mechanism 26 shown in FIG. 1 receives an upward force from the impermeable wall 14 that rises in an intermediate region below the uppermost position, and is positioned at the uppermost position. It is a part which produces the pressing force which presses the impermeable wall 14 in the first direction. As shown in FIG. 3, the pressing mechanism 26 of the present embodiment has two inclined surface constituting members 86 and 88 provided on the rear side surface of the second wall portion 48 of the support portion 18 with a space in the vertical direction. doing.

  As shown in FIG. 3, the lower inclined surface constituting member 86 is formed in a frame shape by a plurality of plate-like portions 86a made of metal such as stainless steel. The lower surface of the first inclined surface 60 (FIG. 5) comes into surface contact with the plate-shaped portion 86 a constituting the rear surface of the inclined surface constituting member 86 when the water shielding wall 14 moves up the intermediate region. The 2nd inclined surface 90 as a part is formed. A through-hole 86b through which a mounting member 94 such as a bolt is inserted is formed in the plate-like portion 86a constituting the front surface of the inclined surface constituting member 86. The inclined surface constituting member 86 is detachably attached to the second wall portion 48 by the attachment member 94.

  As shown in FIG. 3, the upper inclined surface constituting member 88 is formed in a frame shape by a plurality of plate-like portions 88a made of metal such as stainless steel. The plate-like portion 88a constituting the rear surface of the inclined surface constituting member 88 is in contact with the upper portion of the first inclined surface 60 (FIG. 5) that comes into surface contact from below when the water shielding wall 14 moves up the intermediate region. The 2nd inclined surface 92 as a part is formed. A through-hole 88b through which a mounting member 96 such as a bolt is inserted is formed in the plate-like portion 88a constituting the front surface of the inclined surface constituting member 88. The inclined surface constituting member 88 is detachably attached to the second wall portion 48 by the attaching member 96.

  As shown in FIG. 13, the through hole 88b may be a long hole extending in the vertical direction. In this case, the inclined surface constituting member 88 can be adjusted in the vertical direction with respect to the attachment member 96 inserted through the through hole 88b. In this case, the through hole 88b and the attachment member 96 are configured such that the second inclined surface 92 and the first inclined surface 60 (FIG. 5) are mutually adjusted by adjusting the position of the second inclined surface 92 as the “contact portion”. It functions as a “contact position adjustment mechanism” for adjusting the contact position. Similarly, the through hole 86b may be a long hole extending in the vertical direction.

  As shown in FIG. 1, in a state where water is not stored in the water storage tank 12, the water shielding wall 14 and the floating portion 16 are completely accommodated in the water storage tank 12, and the lid body 54 is provided in the water storage tank 12. It abuts on the upper end surface. Therefore, in this state, a person or a vehicle can freely pass through the passage R. Further, in this state, since the water shielding wall 14 and the floating portion 16 are suspended in the internal space S2 of the water storage tank 12 by the lid 54, even when an impact is applied to the lid 54 from a person or a vehicle, the impact Therefore, the impermeable wall 14 and the floating portion 16 are hardly damaged.

  In the event of a tsunami or flood, when the water from the water source X (FIG. 1) flows into the internal space S2 of the water storage tank 12 through the water conduit 34 and the intake 30, the floating portion 16 generates buoyancy from the water stored in the water storage tank 12. As a result, the water-impervious wall 14 protrudes from the road surface G. And if water accumulates in internal space S2, impermeable wall 14 will rise according to the water level of the water. As shown in FIG. 6, when the impermeable wall 14 is raised, the guided portion 56 is moved to the first contact suppression portion 76 and the second wall portion main body 74 a as the “second contact suppression portion”. Move along. Accordingly, the second surface 62 is restrained from coming into contact with the first water stop portion 20 and the fourth surface 64 (FIG. 1) is restrained from coming into contact with the second water stop portion 22 (FIG. 1). . Further, the first inclined surface 60 is prevented from coming into contact with the second inclined surfaces 90 and 92.

  When the water level rises and the impermeable wall 14 further rises, the first inclined surface 60 (FIG. 6) of the impermeable wall 14 comes into contact with the second inclined surfaces 90 and 92 (FIG. 6) of the pressing mechanism 26. The pressing mechanism 26 receives an upward force from the impermeable wall 14 and generates a pressing force that presses the impermeable wall 14 in the first direction. Then, the impermeable wall 14 rises obliquely along the second inclined surfaces 90 and 92 (FIG. 6) due to the buoyancy received from the water and the pressing force received from the pressing mechanism 26, and the guided portion 56 of the impermeable wall 14. Rises obliquely along the proximity allowing portion 80. Thereby, the first surface 58a gradually approaches the second surface 62 and the fourth surface 64 (FIG. 1).

  Immediately before the interior space S2 (FIG. 1) of the water storage tank 12 is completely filled with water, the impermeable wall 14 reaches the uppermost position as shown in FIG. 78. As described above, in the contact allowing portion 78, the relationship of “M1 <M2 + M3” (FIG. 7) is satisfied. Therefore, in the state where each guided portion 56 is disposed in the contact allowance portion 78, the first water stop portion 20 is compressed between the first surface 58a and the second surface 62, and the first surface 58a The 2nd water stop part 22 (FIG. 4) is compressed between the 4th surfaces 64 (FIG. 1).

  When time elapses from the occurrence of a tsunami or flood and water no longer exists above the road surface G, the drain pump 42 in FIG. 1 is driven, and the water accumulated in the internal space S2 of the water storage tank 12 is drained. When the water level of the internal space S2 is lowered, the water shielding wall 14 and the floating portion 16 are lowered by gravity, and these are accommodated in the internal space S2. When the impermeable wall 14 descends, the guided portion 56 shown in FIG. 6 first moves obliquely along the separation allowance portion 82 from the contact allowance portion 78 and then the first contact suppression portion 76. And it moves downward along the second wall portion main body 74a (FIG. 7) as the “second contact suppressing portion”.

  In the present embodiment, the following effects can be achieved by the above configuration. That is, as shown in FIGS. 6 and 7, when the impermeable wall 14 is raised, the second surface 62 comes into contact with the first water stop portion 20, or the first inclined surface 60 is the second inclined surface. It can suppress contacting 90,92. Moreover, it can suppress that the 4th surface 64 (FIG. 1) contact | abuts to the 2nd water stop part 22 (FIG. 1). Therefore, the impermeable wall 14 can be raised smoothly, and damage to the impermeable wall 14 and the water stop portions 20 and 22 can be prevented.

  As shown in FIGS. 8 and 9, when the impermeable wall 14 is located at the uppermost position, the first water stop 20 can be brought into contact with the second surface 62 by the pressing force generated by the pressing mechanism 26. it can. Moreover, the 2nd water stop part 22 (FIG. 1) can be made to contact | abut on the 4th surface 64 (FIG. 1) with the pressing force. Thereby, it can suppress that water leaks to the downstream of the 1st direction from the clearance gap between the impermeable wall 14 and the support part 18, and the clearance gap between the impermeable wall 14 and the water storage tank 12. FIG.

  As shown in FIG. 6, since the proximity allowing portion 80 has an inclined surface parallel to the second inclined surfaces 90 and 92, the first surface 58a is gradually brought closer to the second surface 62 and the fourth surface 64 (FIG. 1). Can continue. Therefore, it is possible to suppress the first water stop portion 20 and the second water stop portion 22 from abruptly contacting the second surface 62 and the fourth surface 64, and the first water stop portion 20 and the second water stop portion 22. Damage can be prevented.

  As shown in FIG. 3, the pressing mechanism 26 has a simple structure having the second inclined surfaces 90 and 92 and is divided into two inclined surface constituting members 86 and 88. The material cost can be reduced, and the manufacturing cost of the water shielding device 10 can be reduced.

  As shown in FIG. 6, the first contact suppressing portion 76, the contact allowing portion 78, the proximity allowing portion 80, and the separation allowing portion 82 can be easily made using the wall surface W (wall surface constituting member 84) of the first wall portion 72. Can be formed.

  As shown in FIG. 3, the pressing mechanism 26 can be removed and the accommodation spaces S <b> 1 and S <b> 4 can be opened upward, so that the side end of the water shielding wall 14 (FIG. 1) While being able to be accommodated in the accommodating space S1 from above, the guided portion 56 can be accommodated in the accommodating space S4 from above the guide portion 24, and the water shielding device 10 can be easily assembled.

  As shown in FIG. 7, the engaging portions 72b and 74b are disposed in the opening P in the guide portion 24, and the interval between the engaging portions 72b and 74b is shorter than the diameter of the roller 56b. When the portion 56 is about to be detached from the guide portion 24 in the second direction, the roller 56b can be locked by the locking portions 72b and 74b. Thereby, it is possible to prevent the water-impervious wall 14 from separating between the two support portions 18.

  In addition, the following design changes are possible with respect to the water shielding apparatus 10 of this embodiment. That is, the wall surface constituting member 84 shown in FIG. 6 is omitted, and the first abutting suppression is performed by changing the dimension of the first wall portion 72 in the front-rear direction (first direction) in the up-down direction. The portion 76, the contact allowance portion 78, the proximity allowance portion 80, and the separation allowance portion 82 may be formed. Further, the contact allowing portion 78 may be formed by providing a portion where the wall surface constituting member 84 does not exist in the guide portion 24.

  The 1st water stop part 20 and the 2nd water stop part 22 which are shown in FIG. 4 may be continuously formed in one without a cut | interruption. Moreover, the 1st water stop part 20 may be provided in the 2nd surface 62 shown in FIG. 6, and may be provided in both the 1st surface 58a and the 2nd surface 62. FIG. The 2nd water stop part 22 may be provided in the 4th surface 64 shown in FIG. 1, and may be provided in both the 1st surface 58a and the 4th surface 64. FIG.

  As shown in FIG. 4, although the 1st water stop part 20 and the 2nd water stop part 22 of this embodiment are formed of the elastic material, the 1st water stop part 20 is the 1st surface shown in FIG. It may be a flat surface (not shown) formed on each of 58a and the second surface 62 and close to each other. Moreover, the 2nd water stop part 22 may be a flat surface (illustration omitted) which can be mutually closely formed in each of the 1st surface 58a and the 4th surface 64 which are shown in FIG. In these cases, water leakage can be prevented by bringing flat surfaces into close contact with each other.

  Instead of the roller 56b of the guided portion 56 shown in FIG. 7, a sliding portion (not shown) that slides along the wall surfaces of the wall portions 72 and 74 may be used. In this case, in order to prevent the impermeable wall 14 from separating between the two support portions 18, the distance between the first locking portion 72b and the second locking portion 74b is set to a sliding portion (not shown). ) Is designed to be shorter than the width in the front-rear direction.

  The number of inclined surface constituent members constituting the pressing mechanism 26 shown in FIG. 6 is not particularly limited, and may be one or three or more. In place of the pressing mechanism 26 having the inclined surface constituting members 86 and 88, the first inclined surface 60 (FIG. 6) of the water shielding wall 14 is point-contacted or line-contacted from below on the support portion 18 shown in FIG. A pressing mechanism having a “contact portion” may be attached. Further, instead of the first inclined surface 60 of the water-impervious wall 14 shown in FIG. 6, a point contact or line contact portion (not shown) from below is formed on the second inclined surfaces 90 and 92 of the pressing mechanism 26. Good.

  FIG. 10 is a side view showing the configuration of the pressing mechanism 98 in another embodiment. The pressing mechanism 98 shown in FIG. 10 includes a lid portion 98a that covers the accommodation space S1 and an inclined surface constituting portion 98b. The lid portion 98a and the inclined surface constituting portion 98b are integrally formed, and the rear side surface of the inclined surface constituting portion 98b is in surface contact with the first inclined surface 60 (FIG. 5) of the water shielding wall 14 from below. A second inclined surface 100 is formed. At least one of the lid portion 98a and the inclined surface constituting portion 98b (the lid portion 98a in FIG. 10) is detachably attached to the support portion 18 using an attachment member 102 such as a bolt. In this embodiment, since the lid portion 98a and the inclined surface constituting portion 98b are integrally formed, the number of parts is reduced and the assembling workability of the water shielding device can be improved.

  FIG. 11 is a cross-sectional view showing a state of the pressing mechanism 106 when the impermeable wall 104 ascends the intermediate region in another embodiment. FIG. 12 is a cross-sectional view showing a state of the pressing mechanism 106 when the water-impervious wall 104 is positioned at the uppermost position in another embodiment. The pressing mechanism 106 shown in FIGS. 11 and 12 has a first bag body 106a and a second bag body 106b filled with gas (air or gas), and the first bag body 106a and the second bag body 106b. Are communicated with each other via a communication path 106c. And the 1st bag body 106a is arrange | positioned at the upper part of accommodation space S1, and the 2nd bag body 106b is arrange | positioned at the front part of accommodation space S1.

  As shown in FIG. 11, a predetermined amount of gas is filled in the first bag body 106a in a natural state (in an uncompressed state). As shown in FIG. 12, when the upper end of the rising impermeable wall 104 comes into contact with the first bag body 106a from below and compresses the first bag body 106a, the gas in the first bag body 106a passes through the communication passage 106c. The second bag body 106b is inflated by flowing into the two bag bodies 106b. The impermeable wall 104 is pressed in the first direction by the pressure (pushing force) at the time of expansion, and the first water blocking portion 20 is interposed between the first surface 108 of the impermeable wall 104 and the second surface 62 of the support portion 18. Is compressed. Moreover, the 2nd water stop part 22 (FIG. 1) is compressed between the 1st surface 108 of the water-impervious wall 104 and the 4th surface 64 (FIG. 1) of the water storage tank 12. FIG. In this embodiment, since it is not necessary to form an inclined surface on the impermeable wall 104, the manufacturing cost of the impermeable device can be reduced.

  FIG. 14 is a perspective view showing a configuration of another inclined surface constituting member 110 used in the pressing mechanism 26 shown in FIG. An inclined surface constituting member 110 shown in FIG. 14 has a front part 112 and a rear part 114 that are divided in the front-rear direction. The front portion 112 has a plurality of plate-like portions 112a extending in the horizontal direction. The rear portion 114 has a plurality of plate-like portions 114a arranged so as to overlap each of the plurality of plate-like portions 112a. A long hole 116 extending in the front-rear direction is formed in a portion where the plate-like portion 112a and the plate-like portion 114a overlap, and each long hole 116 is provided with an attachment member 118 such as a bolt. When the attachment member 118 is loosened, the rear portion 114 can be moved in the front-rear direction with respect to the front portion 112. Thereby, the position of the 2nd inclined surface 120 which the 1st inclined surface 60 (FIG. 5) contacts can be adjusted. That is, in the inclined surface constituting member 110, the front side portion 112, the rear side portion 114, the long hole 116, and the mounting member 118 adjust the positions where the second inclined surface 120 and the first inclined surface 60 (FIG. 5) contact each other. It functions as a “contact position adjusting mechanism”.

  Note that the pressing mechanism may generate a pressing force by using a ridge or a cam in addition to the above-described embodiments.

G ... Road surface 12 ... Water storage tank 14 ... Impermeable wall 16 ... Floating part 18 ... Supporting part 20 ... First water stop part 24 ... Guide part 26 ... Pressing mechanism 58a ... First surface 62 ... Second surface 76 ... First contact Contact suppression part

Claims (6)

A water tank disposed below the road surface;
A water-impervious wall that is accommodated inside the water storage tank so as to be able to appear and disappear from the road surface, and blocks a flow of water flowing in a predetermined direction on the road surface in a state of protruding from the road surface;
A floating portion for projecting the impermeable wall from the road surface by receiving buoyancy from the water stored in the water tank and rising;
A support portion for supporting a side end portion of the impermeable wall protruding from the road surface;
A first water stop portion extending in the vertical direction on at least one of the first surface on the downstream side in the predetermined direction of the water shielding wall and the second surface of the support portion facing the first surface;
A guide portion provided in the support portion and guiding the water-impervious wall in a vertical direction between a lowermost position and an uppermost position;
A pressing mechanism that receives an upward force from the rising impermeable wall and generates a pressing force that presses the impermeable wall positioned at the uppermost position in the predetermined direction;
The guide portion is
By suppressing the impermeable wall from moving in the predetermined direction when the impermeable wall moves upward from the lowest position, at least the other of the first surface and the second surface is An abutment restraining part for restraining the abutment against the water stop part,
By allowing the impermeable wall to move in the predetermined direction when the impermeable wall reaches the uppermost position, at least the other of the first surface and the second surface is the first water stop. A contact allowing portion that allows contact with the portion ;
A first wall formed to extend in the vertical direction;
A second wall portion formed on the upstream side of the first wall portion in the predetermined direction so as to extend in the vertical direction so as to face the first wall portion;
The impermeable wall is
A impermeable wall body having the first surface;
A guided portion that is provided in the impermeable wall body and configured to be movable in a vertical direction between the first wall portion and the second wall portion;
The contact suppressing portion is configured by a first portion of the wall surface of the first wall portion,
The contact allowing portion is configured by a second portion of the wall surface of the first wall portion,
The water shielding device , wherein the second part is disposed on the downstream side in the predetermined direction with being shifted in the vertical direction with respect to the first part . The first wall portion has a wall portion main body and a wall surface constituting member joined to the wall portion main body so as to constitute a wall surface of the first wall portion,
Wherein the predetermined dimension of the wall components by changing in the vertical direction, the first portion and the second portion is formed, the water shield apparatus according to claim 1. The third surface on the upstream side in the predetermined direction in the impermeable wall main body has a first inclined surface that is inclined with respect to a vertical line so as to approach the first surface toward the upper end,
The pressing mechanism, when the impervious wall is raised, the first inclined surface has an abutment portion which abuts from below, seepage control apparatus according to claim 1 or 2. The pressing mechanism includes a contact position adjustment mechanism for adjusting a position where the contact portion and the first inclined surface contact each other by adjusting a position of the contact portion. Item 4. The water shielding device according to item 3 . The water-impervious device according to any one of claims 1 to 4 , wherein the pressing mechanism is detachably attached to the support portion. A second water stop portion provided extending in a horizontal direction on at least one of the first surface and the fourth surface of the water storage tank facing the first surface;
The water shielding apparatus according to any one of claims 1 to 5 , wherein the second surface and the fourth surface are formed so as to be flush with each other.

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