Water-stop board device

Abstract

To provide a water-stop board device with high operational reliability.SOLUTION: A water-stop board device 1 includes: a water-stop board 4 that is pivoted to case 3 supported so as to move between the prone position and the standing position; a standing mechanism 5 for pushing up the water-stop board 4 to a standing position; and a holding mechanism 6 for holding the water-stop board 4 in an upright position. The holding mechanism 6 includes a rod member 9 in which one end is pivotally attached to either the water-stop board 4 or the case 3 and the other end is arranged to be slidable forward and backward on either the water-stop board 4 or the case 3.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to a water blocking board device to be installed at entrances and exits of buildings. [Background technology]

[0002] For example, when a road is flooded or a torrential rainfall causes a large amount of water to overflow, water may seep into buildings through entrances and exits of houses, buildings, underground parking lots, subways, etc. Therefore, in order to prevent water from seeping into buildings, waterproof board devices (waterproof door devices) have been developed that can erect waterproof boards (waterproof doors) to block entrances and exits of buildings during floods (see, for example, Patent Document 1).

[0003] The erection mechanism of the watertight board device described in Patent Document 1 comprises a cylinder that uses high-pressure gas as a power source, and an arm that rotates up and down around one end and erects the watertight board by rolling a roller attached to the other end.When the water sensor in the gas supply unit detects rising water levels, high-pressure gas from the gas cylinder is supplied to the cylinder, which automatically erects the watertight board together with the arm.

[0004] In addition, there are two types of waterproof board devices: a positive water pressure type, in which the waterproof board receives water pressure from the opposite side of the waterproof board's standing direction, and a reverse water pressure type, in which the waterproof board receives water pressure from the standing direction. In the positive water pressure type, the waterproof board is pressed against the entrance / exit side by water pressure to prevent water from entering, but in the reverse water pressure type, the waterproof board needs to be held upright against the water pressure. For example, the waterproof board device described in Patent Document 2 has a standing mechanism that uses a driving force to stand the waterproof board, and also has a separate holding mechanism that braces the waterproof board in the standing state and the case on the ground side, so that the waterproof board can be held upright against the water pressure received from the standing direction of the waterproof board. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2014-114619 A (page 4, figure 1) [Patent Document 2] JP 2013-256764 A (page 7, figure 1) Summary of the Invention [Problem to be solved by the invention]

[0006] In the waterproof board device as described in Patent Document 2, both ends of the holding mechanism are pivotally attached to the waterproof board in the upright state and the case on the ground side, respectively, and the center of the longitudinal direction has a hinge, making it foldable. Therefore, the folded holding mechanism extends following the raising operation of the waterproof board by the raising mechanism, and finally, by manually pushing the hinge part from above to straighten or invert it, it can maintain a tensioned state between the waterproof board in the upright state and the case on the ground side. However, since the holding mechanism adopts a folding structure using a hinge, frequent maintenance and inspection are required to operate the hinge part smoothly and normally, and there is a problem that the operational reliability is insufficient, especially in the waterproof board device used only in emergencies.

[0007] The present invention has been made in view of the above problems, and has as its object to provide a water blocking board device having high operational reliability. [Means for solving the problem]

[0008] In order to solve the above problems, the water blocking board device of the present invention is A waterproof board device comprising: a waterproof board pivotally attached to a base and supported so as to be movable between a laid-down position and an upright position; an erecting mechanism for pushing up the waterproof board to the upright position; and a holding mechanism for holding the waterproof board in an upright position, The retaining mechanism is characterized by having a rod member whose one end is pivotally attached to either the waterproof board side or the base side, and whose other end is arranged so as to be slidable in the forward and backward direction on either the other of the waterproof board side or the base side. According to this feature, the rod member that constitutes the retaining mechanism has one end pivotally attached to either the watertight board or the base side, and the other end slides back and forth, so that when the watertight board is in the laid-down state, it is in a lying state, and stands up in response to the raising action of the watertight board by the raising mechanism, and can maintain the upright state of the watertight board against the water pressure received from the raising direction of the watertight board. By using a rod member with a simple structure in this way for the retaining mechanism, frequent maintenance and inspection are not required, and operational reliability can be improved.

[0009] The standing mechanism is characterized by having an arm having one end pivotally attached to either the waterproof board side or the base side, and the other end arranged so as to be slidable in the forward and backward directions on either the waterproof board side or the base side. According to this feature, the standing mechanism, like the holding mechanism, has one end pivotally attached to either the waterproof board side or the base side, and the other end slides back and forth, so that the standing mechanism and the holding mechanism do not affect each other's operation and can perform the standing operation smoothly.

[0010] The rod member of the holding mechanism is characterized in that one end is pivotally attached to the waterproof board side, and the other end is disposed on the base side so as to be slidable in the front-rear direction. According to this feature, the other end of the rod member can slide back and forth along the base side by its own weight, which simplifies the structure.

[0011] The base is characterized by being provided with a locking mechanism that advances onto the track of the sliding movement of the other end of the rod member to restrict the sliding movement. According to this feature, the inclined posture of the rod member capable of holding the waterproof board in an upright position can be maintained with a simple configuration.

[0012] The rod member is characterized by supporting the water blocking board at a height of approximately 1 / 3 of its total height at an angle of approximately 45°. According to this feature, the water blocking board can be reliably held in an upright position without increasing the size of the holding mechanism. [Brief description of the drawings]

[0013] [Figure 1] 1 is a plan view of a water blocking board device according to an embodiment of the present invention when the water blocking board is in a laid-down position. [Diagram 2] 2 is a cross-sectional view taken along line AA in FIG. 1. [Diagram 3] 2 is a cross-sectional view taken along line BB in Fig. 1. For convenience of explanation, illustration of members on the far side is omitted. [Figure 4] FIG. 2 is a plan view of the water blocking board in an upright position. [Diagram 5] 5 is a cross-sectional view taken along line CC in FIG. 4. [Figure 6] 13A and 13B are schematic side views showing the water blocking board rotated from the lying-down position to halfway to the standing position. [Figure 7] 5(a) and (b) are schematic side views showing the water blocking board that has rotated halfway to the upright position and then rotates further to reach the upright position, and (b) is a cross-sectional view taken along line DD in FIG. 4. [Figure 8] FIG. [Figure 9] FIG. 4 is an enlarged cross-sectional view of the slider mechanism as viewed from the front side. [Figure 10] 13(a) and 13(b) are schematic side views showing the state of the holding mechanism when the water blocking board, which has been rotated halfway to the upright position, rotates further to reach the upright position. [Figure 11] FIG. 4 is a plan view showing the shapes and correlation between the lock mechanism and the slide member. [Figure 12] 13(a) and (b) show how the slide member of the holding mechanism slides to the end of the rail member, and (c) is a plan view showing the state in which the locking mechanism is activated. FIG. [Figure 13] FIG. 2 is a schematic diagram showing the wiring of the operating system of the water blocking board device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A water blocking board device according to the present invention will be described below with reference to the following examples. EXAMPLES

[0015] A water blocking board device according to an embodiment will be described with reference to Fig. 1 to Fig. 13. In the following description, the outdoor side (upper side of the paper in Fig. 1) in which the water blocking board stands up will be referred to as the front, and the indoor side in which the water blocking board falls down will be referred to as the rear.

[0016] As shown in Figures 1 to 7, the waterproof board device 1 is installed on the indoor floor surface between a pair of left and right pillars 2, 2 at the entrance / exit of a building, and in the event of an emergency such as flooding or heavy rain, a waterproof board 4 described below is erected and pressed against the rear surfaces of the pillars 2, 2 in a sealed manner to prevent water from entering the building. In other words, it is a waterproof board device with reverse water pressure specifications. It can also be used as a waterproof board device with positive water pressure specifications to be installed on the outdoor floor surface between a pair of left and right pillars 2, 2 at the entrance / exit of a building.

[0017] The waterproof board device 1 comprises a box-shaped metal case 3 with an open top that serves as a base to be installed in a recess formed on the floor surface or in the ground, a waterproof board 4 pivotally attached to the bottom surface of the front end of the case 3, standing mechanisms 5 arranged on the left and right sides and operated using electricity (commercial power) wired inside the case 3 as a power source, and holding mechanisms 6 installed alternately with the standing mechanisms 5.

[0018] A plurality of reinforcing walls 11 extending in the front-rear direction are provided in parallel on the bottom surface of the case 3. The reinforcing walls 11 support the rear surface of the waterproof board 4 in the laid-down position, and are arranged spaced apart from each other across the left-right direction of the bottom surface of the case 3. The standing mechanisms 5 and the holding mechanisms 6 are alternately arranged one by one between the adjacent reinforcing walls 11, 11.

[0019] The waterproof board 4 is formed of a rectangular metal plate, and multiple reinforcing members 7 are fixed lengthwise and widthwise to its back surface (rear surface when in an upright position) by welding (see Fig. 5). One long side of the waterproof board 4 is pivotally attached to the front bottom surface of the case 3 by multiple hinge mechanisms 8 on the left and right so that it can rotate between a laid-down position (see Figs. 1 to 3) and an upright position (see Fig. 7(b)).

[0020] When the waterproof board 4 rotates to the laid-down position, the back surface of its rear end abuts against the upper ends of the left and right reinforcing walls 11, so that the upper surface of the waterproof board 4 and the floor surface F are aligned to be substantially flush with each other (see FIG. 3). When the waterproof board 4 rotates to the upright position, the surface (front surface) of the waterproof board 4 is hermetically pressed against the rear surfaces of the left and right pillars 2, 2 via sealing members (not shown), and the lower edge is hermetically pressed against a sealing member (not shown) provided on the front surface of the case 3, thereby maintaining waterproofing.

[0021] As shown in FIG. 3 and FIG. 4, the erection mechanism 5 includes an electric cylinder (electric actuator) 51 as an actuator, and an arm 52 that transmits the driving force of the electric cylinder 51 to the waterproof board 4. The electric cylinder 51 includes a cylinder member 510 including a hollow cylindrical cylinder 513 and a cylinder rod 511 that can advance and retreat in the front-rear direction relative to the cylinder 513, and a motor 512. The electric cylinder 51 is a known one, and a ball screw (not shown) extending in the axial direction that is rotated by the motor 512 is housed inside the electric cylinder 51. In addition, a nut (not shown) that is screwed with the ball screw in a state in which co-rotation is restricted is fixed to the cylinder rod 511. When the ball screw is rotated by the motor 512, the nut is screwed along the ball screw, so that the cylinder rod 511 advances and retreats. When the electric cylinder 51 is used, the left and right electric cylinders 51 can be operated synchronously by a control device (not shown).

[0022] The arm 52 of the erecting mechanism 5 includes a pair of left and right side plate members 521, 521 facing each other with a predetermined distance between them, and three connecting shafts 522 facing in the left and right direction connecting one end and the other end (the front end and the rear end when the arm is laid down) of the left and right side plate members 521 in the longitudinal direction and connecting the intermediate portions near the one end, and the pair of side plate members 521 are unitized so as to be integrated by the connecting shafts 522. The connecting shafts 522 at one end and the other end (of the side plate member 521) of the arm 52 protrude outward from the side plate member 521, and the rolling rollers 15, 15, which are the moving end portions, are pivotally supported on the left and right protruding portions of the connecting shaft 522 at the other end. The rolling rollers 15, 15 move relatively along the back surface of the waterproof board 4 (details will be described later).

[0023] Arm brackets 16 are bolted to the upper surface near the front of the bottom surface of the case 3, and left and right protrusions of a connecting shaft 522 on one end side of an arm 52 of the erecting mechanism 5 are pivotally supported on left and right standing pieces 16a, 16a of each arm bracket 16. This allows each arm 52 to rotate around one end (front end).

[0024] The tip of the cylinder rod 511 of the erection mechanism 5 is rotatably attached to the left-right center of the connecting shaft 522 in the middle of each arm 52, so that the cylinder rod 511 and the left-right center of the arm 52 are aligned in a straight line in a plan view. Each arm 52 rotates upward around one end by the thrust of the electric cylinder 51, and the waterproof board 4 is pushed up by the rolling roller 15 at the other end.

[0025] A pair of rail members 18, 18 and guard members 19, 19 are provided on the left and right sides of the reinforcing material 7 on the back surface of the waterproof board 4, corresponding to the erection mechanism 5. The rail members 18, 18 and guard members 19, 19 on the left and right sides have the same structure and mounting form.

[0026] 5, when the waterproof board 4 is in an upright state, a mounting base 20 is fixed by welding to the vertical center of the back surface of adjacent vertical reinforcements 7a, 7a of the reinforcement 7, and flange portions 18a of a pair of left and right rail members 18, 18 facing in the vertical direction are fixed by multiple bolts 21 to the back surface (rear surface) of the central portion of the mounting base 20. In addition, outward flange portions 19a, 19a of a pair of left and right guard members 19, 19 are fixed by multiple bolts 21 to both the left and right sides of the mounting base 20 that sandwich the left and right rail members 18.

[0027] The rail members 18, 18 protrude rearward (toward the back surface of the waterproof board 4), and their rear end faces (which are the lower faces when in a laid-down state) serve as guide surfaces 18b, 18b that guide the rolling rollers 15, 15 of the arm 52. The guide surfaces 18b are inclined surfaces that gradually protrude toward the back surface of the waterproof board 4 from the starting end to the terminal end. At the terminal ends of the left and right guide surfaces (inclined surfaces) 18b, 18b, a step portion 18c (see FIG. 7(b)) is formed by a surface that intersects with the guide surfaces 18b at an obtuse angle. The rolling rollers 15, 15 fall into this step portion 18c when the waterproof board 4 is rotated to the upright position.

[0028] The guard members 19, 19 extend along the guide surfaces 18b, 18b of the rail members 18, 18 and have side wall portions 19b, 19b protruding rearward, and restricting portions 19c, 19c extending inwardly to the left and right from the rear ends of the side wall portions 19b, 19b (see FIG. 5). The opposing surfaces of the restricting portions 19c, 19c and the guide surfaces 18b, 18b of the rail members 18, 18 are spaced apart so that the rolling rollers 15, 15 can pass through.

[0029] Next, the operation and effects of the waterproof board device 1 will be described with reference to Figures 6 to 11. As shown in Figure 6(a), under normal circumstances, the waterproof board 4 is in a completely laid down state, and the upper surface of the waterproof board 4 and the floor surface F are substantially flush with each other. In the event of an emergency such as flooding or heavy rain, when it becomes necessary to prevent water from entering the building, the left and right erection mechanisms 5 are simultaneously activated by operating a control device (not shown).

[0030] When the left and right erection mechanisms 5 are operated, the motor 512 of the electric cylinder 51 is operated, and the cylinder rod 511 is screwed and protrudes forward. Then, as shown in Fig. 6(b), Fig. 7(a), and (b), the arm 52 connected to the tip of the cylinder rod 511 gradually rotates upward around one end (front end). As a result, the rolling rollers 15, 15 pivoted to the other end of the arm 52 come into contact with the guide surface 18b of the rail members 18, 18 on the back surface of the waterproof board 4, and move downward relatively while gradually pushing up the waterproof board 4. At this time, the rolling rollers 15 move between the restricting portion 19c and the guide surface 18b in a state in which the movement in the left and right direction is restricted by the side wall portion 19b of the guard member 19, so that the rolling rollers 15 can be reliably moved along the guide surface 18b, and the arm 52 and the rolling rollers 15 are kept in contact with each other and do not move apart relatively, so that the waterproof board 4 can be erected smoothly and safely.

[0031] As shown in Fig. 7(b), when the cylinder rod 511 protrudes to a predetermined maximum stroke, the motor 512 stops and the water protection board 4 rotates to an upright position where it abuts the left and right pillars 2 and stops there. Since the cylinder rod 511 is extended by a screw feed mechanism, it is held in the maximum extension position when the motor 512 stops, and there is little risk that the water protection board 4 will be pushed back in the collapsed direction. Note that the condition for stopping the motor 512 may be something other than the stroke of the cylinder rod 511, and may be due to, for example, a load acting on the cylinder rod 511 or the water protection board 4 abutting the pillars 2.

[0032] In addition, one end of the arm 52 in the longitudinal direction is pivotally attached to the case 3, the rolling roller 15 is pivotally supported at the other end, and the tip of the cylinder rod 511 is pivotally attached to the middle portion, so that the distance between one end and the other end of the arm 52 is large, and therefore the weight of the waterproof board 4 can be reliably supported by the arm 52.

[0033] When the water proof board 4 rotates to the upright position, the rolling roller 15 drops into the step 18c of the rail member 18. As a result, the force due to the weight of the water proof board 4 has a small component in the front-rear direction of the arm 52 and is mainly received in the up-down direction, so that the water proof board 4 can be temporarily maintained in the upright state by the simply configured upright mechanism 5.

[0034] Next, the structure and operation of the holding mechanism 6 will be described with reference to Figures 8 to 11. As shown in Figure 8, the holding mechanism 6 includes a rod member 9, a slider mechanism 10, and a lock mechanism 12.

[0035] A bracket 30 is bolted to the inner surface of the waterproof board 4 near the hinge mechanism 8, and a connecting shaft 622 provided at one end side of the rod member 9 of the retaining mechanism 6 is pivotally attached to the left and right upright pieces 30a, 30a of the bracket 30.

[0036] A plurality of rail members 31 constituting the slider mechanism 10 are provided on the bottom surface of the case 3 in correspondence with the holding mechanism 6. The rail members 31 are formed with their longitudinal direction parallel to the arm 52 of the erecting mechanism 5. As shown in Fig. 9, the rail member 31 has a lower portion 31b on the base side narrower than the upper portion 31a, and steps 31c are formed on both sides in the width direction due to the difference in width between the upper portion 31a and the lower portion 31b. The upper portion 31a has a smooth upper surface 31d which is a guide surface along which the slide member 32 described later slides.

[0037] A slide member 32, which together constitutes the slider mechanism 10, is loosely fitted into the rail member 31 so as to be movable in the longitudinal direction of the rail member 31. The slide member 32 has a C-shaped claw portion 32a that is engaged with a step portion 31c of the rail member 31, and also has a lower surface portion 32b that abuts against an upper surface 31d of the rail member 31. The slide member 32 supports its load on the upper surface 31d while the claw portion 32a is engaged with the step portion 31c, thereby preventing the slide member 32 from floating upward and enabling stable sliding movement.

[0038] In this way, one end of the rod member 9 of the holding mechanism 6 is pivotally attached to the waterproof board 4, and the other end is configured to slide relative to the rail member 31 on the case 3 side, so that when the waterproof board 4 is raised by the operation of the raising mechanism 5, the holding mechanism 6 follows the operation of the waterproof board 4 and the rod member 9 rises, as shown in Fig. 10(a). Then, when the waterproof board 4 reaches an upright standing state, as shown in Fig. 10(b), the sliding member 32 moves to the terminal position on the hinge mechanism 8 side of the rail member 31. The terminal position here refers to the position of the sliding member 32 when the waterproof board 4 has reached its movement limit on the rising side, and does not refer to the end of the rail member 31 on the hinge mechanism 8 side.

[0039] The connecting shaft 623 fixed to the other end of the rod member 9 of the holding mechanism 6 has left and right protrusions pivotally supported on the side wall 32c formed on the front side of the slide member 32, i.e., on the hinge mechanism 8 side. Furthermore, brackets 32d, 32d are formed on the rear side of the slide member 32, opening rearward and arranged parallel to the top and bottom, and a rod 33 is inserted into the brackets 32d, 32d from above and below. The rod 33 is fixed by a fixing means 34a so as not to come off from the slide member 32. As shown in FIG. 9, a cylinder 34 having approximately the same length as the space between the brackets 32d, 32d is loosely fitted into the rod 33.

[0040] The lock mechanism 12 has an electric cylinder (electric actuator) 61 as an actuator, and operates using electricity as a drive source. In addition to the electric cylinder 61, the lock mechanism 12 also includes a direction changing mechanism 62 and a forward / backward movement mechanism 63.

[0041] The electric cylinder 61 includes a cylinder member 610 including a hollow cylindrical cylinder 613 and a cylinder rod 611 that can advance and retreat in the front-rear direction relative to the cylinder 613, and a motor 612. This electric cylinder 61 is of the same standard as the electric cylinder of the erection mechanism.

[0042] A base member 35 constituting the lock mechanism 12 is fixed to the bottom surface of the case 3. A bell crank 36 constituting the direction changing mechanism is pivotally attached to the base member 35 by a pivot 37 so as to be rotatable in the horizontal direction.

[0043] Bell cranks 36 are arranged in a pair, one above the other, of the same approximately triangular shape. As shown in Fig. 12(a), bell cranks 36 have through holes (38A, 38B, 38C) that penetrate vertically at each corner. A pivot 37 fixed to base member 35 is pivotally attached to through hole 38A of one of the opposing bell cranks, upper and lower ends of connecting shaft 622 provided at the tip of cylinder rod 611 are pivotally attached to through hole 38B of the other, and upper and lower ends of connecting shaft 41 provided at the rear end of deadbolt 40 (described later) of advance / retract mechanism 63 are pivotally attached to through hole 38C of the other.

[0044] The advance / retract mechanism 63 is composed of lock brackets 39, 39 fixedly formed on a base member, and a deadbolt 40, which is a restricting member, inserted into through holes formed in the lock brackets 39, 39, respectively.

[0045] In this way, the cylinder rod 611 and the deadbolt 40 are connected via the bell crank 36, and as shown in Figures 12(b) and (c), when the cylinder rod 611 advances, the bell crank 36 rotates around the pivot 37, causing the deadbolt 40 to advance.

[0046] The deadbolt 40 and the lock brackets 39, 39 are disposed near the side of the rail member 31 that constitutes the slider mechanism 10, and the deadbolt 40 is disposed so that its longitudinal direction is perpendicular to the longitudinal direction of the rail member 31. The deadbolt 40 and the lock brackets 39, 39 are also biased toward the hinge mechanism 8 side of the rail member 31. For this reason, as shown in FIG. 12(c), the deadbolt 40 that has been advanced extends across above the rail member 31.

[0047] As will be described in detail later, the operation of the electric cylinder 61 is controlled by a control device C shown in Fig. 12, and the control device C causes the electric cylinder 61 to advance based on the completion of the raising operation of the electric cylinder 51 of the raising mechanism 5. In detail, by rotating the motor 612 of the electric cylinder 61 in the forward direction, the cylinder rod 611 advances, which rotates the bell crank 36 and causes the deadbolt 40 to extend rearward from the slide member 32 located at the terminal position of the rail member 31 (see Figs. 10(b) and 12(b)).

[0048] The deadbolt 40 protruding from the rear of the slide member 32 restricts the rearward movement of the slide member 32. In other words, when the slide member 32 is in the terminal position, i.e., when the waterproof board 4 is in an upright standing state, the raised rod member 9 is braced between the base member 35 fixed to the case 3 side and the bracket 30 fixed to the inner surface of the waterproof board 4, preventing the waterproof board 4 from tilting in the collapse direction. As a result, in the event of an emergency, the entrance is blocked by the waterproof board 4, preventing water from entering the building.

[0049] As explained above, the rod member 9 constituting the holding mechanism 6 has one end pivotally attached to the watertight board 4 and the other end slidably moved by the slider mechanism 10, so that the rod member 9 is in a lying state when the watertight board 4 is in the laid-down state and stands up in response to the raising action of the watertight board 4 by the raising mechanism 5, and can maintain the upright state of the watertight board 4 against the water pressure received from the raising direction of the watertight board 4. By employing a rod member 9 with a simple structure in this way for the holding mechanism 6, frequent maintenance and inspection are not required and operational reliability can be improved.

[0050] In addition, similar to the holding mechanism 6, the standing mechanism 5 has one end pivotally attached to the case 3 side and the other end slides along the rail member 18 on the back side of the waterproof board 4. Therefore, when the waterproof board 4 is raised or lowered, the standing mechanism 5 and the holding mechanism 6 do not affect each other's operation, and the standing operation can be performed smoothly.

[0051] In addition, one end of the rod member 9 of the holding mechanism 6 is pivotally attached to the waterproof board 4 side, and the other end is arranged so as to be able to slide in the forward and backward directions on the rail member 31 on the case 3 side, and the other end of the rod member 9 can slide along the rail member 31 by its own weight, thereby simplifying the structure.

[0052] In addition, the slide member 32 is loosely fitted to the rail member 31 by engaging the claw portion 32a with the step portion 31c so that it cannot be separated in the vertical direction, so that the slide member 32 does not float up from the rail member 31 and can slide smoothly.

[0053] In addition, the locking mechanism 12 advances onto the sliding movement trajectory of the slide member 32 to directly restrict the sliding movement, so that the inclined posture of the rod member 9, which can maintain the upright state of the waterproof board 4, can be reliably maintained with a simple configuration.

[0054] 10(b), the rod member 9 supports the water blocking board 4 at a height H that is approximately 1 / 3 of the total height of the water blocking board 4, at an angle of approximately 45°. This allows the rod member 9 to bear the load with maximum efficiency, so that the water blocking board 4 can be reliably held upright without increasing the size of the holding mechanism 6.

[0055] 11, the tip of the deadbolt 40 has a flat surface 40a facing the hinge mechanism 8, and a tapered surface 40c that is an inclined flat surface from the flat surface 40a to the tip surface 40b. The tapered surface 40c is extended slightly toward the hinge mechanism 8 from the tangent of the apex O of the front side of the cylinder 34 on the rod 33. Therefore, when the deadbolt 40 advances, the tapered surface 40c first makes line contact with the cylinder 34, and advances while maintaining the line contact, and the cylinder 34 is guided to the flat surface 40a. At this time, the slide member 32 moves slightly toward the hinge mechanism 8 from the aforementioned end position, and the waterproof board 4 is pressed against the rear surfaces of the left and right pillars 2, 2 so as to crush the seal members. This further improves the sealing condition provided by the waterproof board 4, and since the waterproof board 4 is rotated further forward from the erection angle at the completed driving position of the electric cylinder 51 of the erection mechanism 5, the load of the waterproof board 4 and the water pressure that the waterproof board 4 receives from the front side do not act directly on the erection mechanism 5, and there is no load on the electric cylinder 51 and the motor 512.

[0056] In addition, since the deadbolt 40 makes line contact with the cylinder 34 of the slide member 32 during the advancing operation, frictional resistance is reduced and stress can be distributed vertically, allowing the deadbolt 40 to be advanced smoothly and the torque required for the motor 612 on the locking mechanism 12 side to be reduced.

[0057] Furthermore, the cylinder 34 which is the contact point of the slide member 32 with the deadbolt 40 can rotate horizontally relative to the rod 33 which is a cylinder, so that the resistance when the deadbolt 40 advances can be further reduced.

[0058] Furthermore, the cylindrical body 34 and the rod 33 can be separated from the main body of the slide member 32 by removing the fixing means 34a, and can be easily replaced when worn out.

[0059] In addition, since the deadbolt 40 is configured to extend perpendicular to the longitudinal direction of the rail member 31, i.e., the sliding movement direction of the slide member 32, it can efficiently receive the load and water pressure of the water blocking board 4 via the slide member 32.

[0060] In addition, through hole 38C of bell crank 36 to which connecting shaft 41 provided at the rear end of deadbolt 40 is pivotally attached is an elongated hole extending from a corner of bell crank 36 toward through hole 38A through which pivot shaft 37 is inserted, and is shaped like a circular arc having an apex on the side where through holes 38C and 38B are both located. This allows deadbolt 40 to advance in an acute angle direction relative to the protruding direction of cylinder rod 611. In addition, by advancing deadbolt 40 in an acute angle direction relative to the protruding direction of cylinder rod 611, it is possible to arrange cylinder rod 611 in a small width space between adjacent reinforcing walls 11, 11 to ensure a sufficient amount of advancement of deadbolt 40.

[0061] Fig. 13 is a schematic diagram showing the wiring of the operation system of the water blocking board device. As shown in Fig. 13, the control device C is composed of a control panel C1 and an operation panel C2. The control panel C1 is connected to a power supply wiring LN1 extending from an external power source, for example, a commercial power source, and to a control signal wiring LN2 extending from the operation panel C2.

[0062] In addition, the power supply wiring LN3 as an external wiring extending from the control panel C1 and the control signal wiring LN4 as a wiring for control signals from the outside are electrically and detachably connected to the power supply wiring LN5 and the control signal wiring LN6 by the connection box 50 as a watertight box.

[0063] Further, the power supply wiring LN5 extending from the connection box 50 is connected by a bridging wiring to the AC / DC converter 60A connected to each electric cylinder 51 and the AC / DC converter 60B connected to each electric cylinder 61. Note that, although the embodiment exemplifies a form in which the bridging wiring is outside the connection box 50, it may be inside the connection box 50.

[0064] Further, the control signal wiring LN6 extending from the connection box 50 is connected to each of the electric cylinders 51, 61 by bridging wiring.

[0065] The AC / DC converters 60A and 60B convert alternating current, which is a commercial power supply supplied from each of the power supply wirings LN5, into direct current and supply it to the electric cylinders 51 and 61, respectively.

[0066] In addition, since the electric cylinders 51, 61 are of the same standard, the AC / DC converters 60A, 60B and various wiring can be used interchangeably, and wiring work and maintenance are easy.

[0067] Furthermore, the connection between the power supply wiring LN3 and the power supply wiring LN5 and the connection between the control signal wiring LN4 and the control signal wiring LN6 are concentrated in the connection box 50, which simplifies the management of the wiring.

[0068] In addition, there are multiple sets of AC / DC converters 60A, 60B and electric cylinders 51, 61, and each set is connected by jumper wiring, so that even if one AC / DC converter 60A, 60B fails, the remaining AC / DC converters 60A, 60B and the electric cylinders 51, 61 in the set can be driven.

[0069] Although the embodiments of the present invention have been described above with reference to the drawings, the specific configurations are not limited to these embodiments, and additions and modifications that do not deviate from the gist of the present invention are also included in the present invention.

[0070] For example, in the above embodiment, the holding mechanisms 6 are arranged alternately with the pair of left and right standing mechanisms 5, but one holding mechanism 6 may be installed in the center of the water protection board 4 in the left-right direction, and the arrangement position and the number of the standing mechanisms 5 can be changed as appropriate depending on the size and shape of the water protection board 4. Similarly, the arrangement position and the number of the standing mechanisms 5 can be changed as appropriate depending on the size and shape of the water protection board 4.

[0071] In addition, in the above embodiment, one end side of the rod member 9 in the holding mechanism 6 is described as having a structure in which the slide member 32 is loosely fitted into the rail member 31 by the claw portion 32a, but this is not limited to the above structure. For example, the claw portion may be omitted, or a configuration having a roller or low-friction material instead of the slide member may be used.

[0072] In addition, in the above embodiment, one end of the rod member 9 of the holding mechanism 6 is pivotally attached to the waterproof board 4 side, and the other end is arranged so that it can slide in the forward and backward directions on the rail member 31 on the case 3 side, but conversely, one end of the rod member may be arranged so that it can slide on the rail member on the waterproof board side, and the other end may be pivotally attached to the case 3 side.

[0073] Furthermore, the erection mechanism 5 is not limited to a configuration in which one end is pivotally attached to the case 3 side and the other end slides along the rail member 18 on the back side of the waterproof board 4 .

[0074] In addition, in the above embodiment, the advance / retract mechanism 63 constituting the locking mechanism 12 advances the deadbolt 40 horizontally, but the present invention is not limited to this. For example, the advance / retract mechanism may be embedded below the rail member and the deadbolt may protrude from below onto the rail member, or all of the through holes in the bell crank may be round, allowing the deadbolt to advance in an arcuate trajectory.

[0075] Furthermore, the direction changing mechanism 62 constituting the lock mechanism 12 is not limited to one using a bell crank, and may be configured to use, for example, a rack and pinion.

[0076] In the above embodiment, the electric cylinder 61 is used as the actuator of the lock mechanism 12, but this is not limited to this and a fluid pressure cylinder operated by hydraulic pressure or air pressure can also be used. The drive source of the lock mechanism 12 is not limited to a cylinder structure and may be, for example, a motor and gears. [Explanation of symbols]

[0077] 1 Waterproof plate device 2 Pillars 3 Case (base) 4 Waterproof board 5 Orthostatic mechanism 6 Retention mechanism 7 Reinforcement 7a Longitudinal reinforcement 8 Hinge mechanism 9 Rod member 10 Slider mechanism 11 Reinforced Wall 12 Locking mechanism 15 Roller 18 Rail parts 30 Bracket 30a,30a standing piece 31 Rail parts 31a Upper 31b lower part 31c Stepped section 31d top surface 32 Slide member 32a Claw part 32b Surface part 33 Bar material 32d,32d bracket 34 Cylinder 35 Base material 36 Bell crank 37 Axis 38A through hole 38B through hole 38C through hole 39,39 Lock bracket 40 Deadbolt (regulating member) 40a flat part 40b Tip surface 40c tapered surface 41 Connecting shaft 50 Connection Box 51 Electric Cylinder 52 Arm 60A, 60B AC / DC converter 61 Electric Cylinder 62 Direction change mechanism 63 Advancement / retraction mechanism 610 Cylinder parts 611 Cylinder rod 612 Motor 613 Cylinder 622 Connecting shaft 623 Connecting shaft C Control device F Floor LN1 power supply wiring LN2 control signal wiring LN3 power wiring LN4 Control signal wiring LN5 power wiring LN6 Control signal wiring

Claims

1. A waterproof board device comprising: a waterproof board pivotally attached to a base and supported so as to be movable between a laid-down position and an upright position; an erecting mechanism for pushing up the waterproof board to the upright position; and a holding mechanism for holding the waterproof board in an upright position, The retaining mechanism is characterized in that it has a rod member having one end pivotally attached to either the waterproof board side or the base side, and the other end arranged so as to be slidable in the forward and backward directions on either the waterproof board side or the base side.

2. The waterproof board device described in claim 1, characterized in that the standing mechanism has an arm having one end pivotally attached to either the waterproof board side or the base side and the other end arranged to be slidable in the forward and backward direction on either the waterproof board side or the base side.

3. 2. The water blocking board device according to claim 1, wherein one end of the rod member of the holding mechanism is pivotally attached to the water blocking board side, and the other end is arranged on the base side so as to be slidable in the forward and backward directions.

4. 4. The water blocking board device according to claim 3, wherein the base is provided with a locking mechanism for restricting the sliding movement of the other end of the rod member by advancing onto the track of the sliding movement of the other end of the rod member.

5. 5. A water blocking board apparatus according to claim 1, wherein the rod member supports the water blocking board at an angle of about 45 degrees for a height of about 1 / 3 of the total height of the water blocking board.

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