Waterproof membrane installation

Abstract

To provide a waterproof board device capable of allowing a user to easily perform maintenance and inspection.SOLUTION: A waterproof board device 1 includes: a waterproof board 4 pivoted to a base 3 so as to rotate up and down between a lodging position and a standing position; and an orthostatic mechanism 5 that pushes the waterproof board 4 up to the standing position. The orthostatic mechanism 5 includes an electric actuator 51 and monitoring means C1 for monitoring the operation of the actuator 51 in a state where the waterproof board 4 is not operating from the lodging position.SELECTED DRAWING: Figure 11

Description

Technical Field

[0001] The present invention relates to a waterproof plate device installed at an entrance or the like of a building.

Background Art

[0002] For example, when an excessive amount of water overflows onto the road due to floods, heavy rainstorms, etc., there is a risk that water may enter the building through entrances of houses, buildings, underground parking lots, subways, etc. Therefore, in order to prevent water from entering the building, a waterproof plate device (waterproof door device) has been developed that can stand up a waterproof plate (waterproof door) during floods to block the entrance of the building (see, for example, Patent Document 1).

[0003] The standing mechanism of the waterproof plate device described in Patent Document 1 includes a cylinder that operates with high-pressure gas as a driving source, and an arm that rotates up and down around one end and stands up the waterproof plate by the rolling of a roller provided at the other end. When the water detection part of the gas supply part detects a rise in water level, the high-pressure gas from the gas cylinder is supplied to the cylinder, and the waterproof plate is automatically stood up together with the arm.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In waterproof panel devices such as those described in Patent Document 1, if a malfunction occurs in the uprighting mechanism due to deterioration over time, for example, there is a risk that the waterproof panel may not be able to be reliably raised in situations where waterproofing is required. Therefore, periodic maintenance and inspection of the uprighting mechanism is performed. When performing maintenance and inspection of the uprighting mechanism, the mechanism is actually driven to operate the waterproof panel. Therefore, from a safety perspective, it is necessary to restrict access to the area around the waterproof panel device and to deploy workers during maintenance and inspection of the uprighting mechanism, making maintenance and inspection of the uprighting mechanism complicated.

[0006] This invention was made in view of these problems, and aims to provide a waterproof plate device that can be easily maintained and inspected. [Means for solving the problem]

[0007] To solve the above problems, the waterproof plate device of the present invention is A waterproof plate device comprising a waterproof plate pivotally attached to a base so as to be able to rotate vertically between a reclined position and an upright position, and an upright mechanism that pushes the waterproof plate up to the upright position, The aforementioned standing mechanism is equipped with an electric actuator. The system is characterized by having monitoring means for monitoring the operation of the actuator while the waterproof plate is not moving from the folded position. This feature allows for easy maintenance and inspection of the waterproofing panel by operating only the electric actuator without moving the waterproofing panel itself, collecting information on the actuator and electrical components, and monitoring whether they are functioning correctly. This makes it possible to determine whether maintenance on the actuator and electrical components is necessary, thus simplifying the maintenance and inspection of the waterproofing panel device.

[0008] A key feature is that there is some play in the connection between the standing mechanism and the base. This feature allows the actuator to be driven with a simple structure without having to operate the waterproof plate.

[0009] A key feature is that there is some play in the connection between the erecting mechanism and the waterproof plate. This feature allows the actuator to be driven without operating the waterproof plate, using a simple structure. Furthermore, it allows for stable operation of the lifting mechanism.

[0010] The aforementioned lifting mechanism is provided with a link mechanism that receives driving force from the actuator and transmits force to the waterproof plate. A key feature is that there is some play in the connection between the actuator and the link mechanism. This feature allows the actuator to be driven without any load being placed on the waterproof plate.

[0011] The system is characterized by monitoring the operation of the actuator and then returning the actuator to its initial position. This feature allows for continuous monitoring of the actuator's operation.

[0012] The actuator is characterized by having an external output function that outputs operational information. This feature allows for monitoring of actuator operation with a simple structure. [Brief explanation of the drawing]

[0013] [Figure 1] This is a plan view of the waterproofing plate device according to an embodiment of the present invention when the waterproofing plate is in the fallen position. [Figure 2] This is a cross-sectional view along line AA in Figure 1. [Figure 3] This is a cross-sectional view along line BB in Figure 1. For the sake of explanation, the rear component is not shown. [Figure 4] This is a plan view of the waterproof panel when it is in the upright position. [Figure 5] Figure 4 is a cross-sectional view along the CC line. [Figure 6] This is a cross-sectional view along line DD in Figure 4. For the sake of explanation, the rear component is not shown. [Figure 7] Figure 5 is an enlarged cross-sectional view of the EE line. [Figure 8](a) is a perspective view showing a bracket, (b) is a front view thereof, (c) is a side view thereof, and (d) is a bottom view thereof. [Figure 9] It is a side sectional view showing the initial position of the electric cylinder at the fallen position of the waterproof plate. [Figure 10] It is a schematic view showing the entire waterproof plate device. [Figure 11] It is a side sectional view showing a state where an inspection operation of the electric cylinder has been performed. [Figure 12] (a) is a diagram showing the main screen of the display unit, and (b) is a diagram showing the inspection screen of the display unit. [Figure 13] (a) is a diagram showing a state where a message notifying completion of the inspection operation of the electric cylinder is displayed, and (b) is a diagram showing a state where a message notifying an abnormality of the electric cylinder is displayed.

Embodiments for Carrying Out the Invention

[0014] Embodiments for carrying out the waterproof plate device according to the present invention will be described below based on examples.

Examples

[0015] The waterproof plate device according to the example will be described with reference to FIGS. 1 to 13. In the following, the outdoor side (above the paper surface in FIG. 1), which is the standing direction of the waterproof plate, will be described as the front, and the indoor side, which is the fallen direction, will be described as the rear.

[0016] As shown in FIGS. 1 to 7, the waterproof plate device 1 is installed on the indoor floor surface between a pair of left and right columns 2 at the entrance of a building. In an emergency such as a flood or a heavy rainstorm, the waterproof plate 4 described below is raised and pressed against the rear surfaces of the columns 2 in a sealed manner to prevent water from entering the building.

[0017] The waterproof plate device 1 comprises a box-shaped metal case 3 with an open top surface that serves as a base to be installed in a recess formed in the floor or ground, a waterproof plate 4 pivotally attached to the bottom surface of the front end of the case 3, an upright mechanism 5, 5, 5 installed spaced apart on the left and right sides of the bottom surface of the case 3 and operated using electricity (commercial power supply) as a driving source, and a control device C (see Figure 10) that controls the upright mechanisms 5, 5, 5 from the outside.

[0018] In this embodiment, an example is shown in which an electric powered standing mechanism 5 is provided. However, in addition to the standing mechanism 5, a standing mechanism operated by a power source other than electricity (for example, hydraulics) may also be provided.

[0019] The waterproof plate 4 is formed from a rectangular metal plate, and multiple reinforcing members 7 are welded to its back surface (rear surface in the upright position) in a vertical and horizontal direction. The waterproof plate 4 is pivotally attached to the front bottom surface of the case 3 by multiple hinge mechanisms 8 (three in this embodiment) on one of its long sides, allowing it to rotate vertically (front-to-back direction), and can rotate vertically between a folded position (see Figures 1 to 3) and an upright position (see Figures 4 to 6).

[0020] In its collapsed state, the front-to-rear dimensions of the waterproof plate 4 are formed to be shorter than the front-to-rear dimensions of the case 3 by the required amount, and an opening 9 is formed between the rear end of the waterproof plate 4 and the rear wall of the case 3, allowing access to the internal space of the case 3 for inspection, etc. The opening 9 is normally closed by a removable cover plate 10. The cover plate 10 may be pivotally attached to the case 3 by a hinge so that it can be opened and closed.

[0021] When the waterproof plate 4 rotates to the folded position, the underside of its rear end contacts the upper ends of the left and right stopper rods 11 erected on the bottom surface near the rear of the case 3, so that the top surface of the waterproof plate 4 and the floor surface F are aligned to be almost flush (see Figure 3). When the waterproof plate 4 rotates to the upright position, the surface (front) of the waterproof plate 4 is pressed against the rear surfaces of the left and right columns 2, 2 in a sealed manner via sealing members (not shown), and its lower edge is pressed against a sealing member (not shown) provided on the front of the case 3 in a sealed manner, thus maintaining waterproofness.

[0022] On the inner surface of the front of case 3, two U-shaped frame members 12, 12, which are slightly lower in height than case 3 and oriented inward in a plan view, are fixed, and the bottom surface of case 3 below the frame members 12 is open. By pouring ready-mix concrete into the frame members 12, 12, case 3 can be fixed to the foundation of the floor surface F.

[0023] Each of the standing mechanisms 5, 5, and 5 is equipped with an electric cylinder (electric actuator) 51 which is an actuator, and an arm 52 which is a link mechanism that transmits the driving force of the electric cylinder 51 to the waterproof plate 4.

[0024] The electric cylinder 51 comprises a cylinder member 510 consisting of a hollow cylindrical cylinder 513 and a cylinder rod 511 that can move back and forth relative to the cylinder 513, and a motor 512. The electric cylinder 51 is a known type, and inside the electric cylinder 51 is a ball screw (not shown) that extends axially and is rotated by the motor 512. A nut (not shown) is fixed to the cylinder rod 511 so as to prevent it from rotating together with the ball screw. When the ball screw rotates due to the motor 512, the nut is screwed along the ball screw, causing the cylinder rod 511 to move back and forth. Using the electric cylinder 51, multiple electric cylinders 51 can be operated synchronously by the control device C.

[0025] The electric cylinder 51 in this embodiment has an external output function that detects its own operating status and outputs it to the control device C. Specifically, the electric cylinder 51 has an encoder (not shown) that can obtain position information of the cylinder rod 511 in the forward and backward direction, and outputs this position information to the control device C. However, the electric cylinder 51 is not limited to an encoder, and may also be equipped with a strain sensor, an ammeter, or a voltmeter, and the data obtained from them may be output to the control device C.

[0026] Cylinder brackets 13 are bolted to the rear side of the bottom surface of case 3, and the base ends (rear ends) of the electric cylinders 51 of the standing mechanisms 5, 5, 5 are pivotally attached to the left and right upright pieces 13a, 13a of each cylinder bracket 13 by pivots 14 that face left and right, allowing them to rotate up and down.

[0027] The arm 52 of the standing mechanism 5 comprises a pair of left and right side plate members 521, 521 that are spaced a predetermined distance apart and facing each other, and a connecting shaft 522 that faces left and right and connects one end and the other end (front end and rear end when the unit is lowered) of the left and right side plate members 521 in the longitudinal direction, and the intermediate parts near one end. The pair of side plate members 521 are unitized so as to form a single unit by the connecting shaft 522. The connecting shaft 522 at one end and the other end of each arm 52 protrudes outward from the side plate member 521, and rolling rollers 15, 15, which are the movable ends, are pivotally supported on the left and right protruding parts of the connecting shaft 522 at the other end. The rolling rollers 15, 15 move relative to each other along the back surface of the waterproof plate 4 (details will be described later).

[0028] An arm bracket 16 is bolted to the front of the bottom surface of case 3, and the left and right upright pieces 16a, 16a of each arm bracket 16 are pivotally supported by the left and right protrusions of the connecting shaft 522 at one end of the arm 52 of the upright mechanism 5. As a result, each arm 52 can rotate up and down around one end (front end).

[0029] The tip of the cylinder rod 511 of the erection mechanism 5 is pivotally attached to the center of the connecting shaft 522 in the left-right direction of the middle section of each arm 52 via a bracket 30, which will be described later. Each arm 52 rotates upward around one end by the thrust of the electric cylinder 51, and the rolling roller 15 at the other end pushes up the waterproof plate 4. As shown in Figures 3 and 6, the side plate member 521 of the arm 52 is provided with multiple mounting holes 17 to which the connecting shaft 522 of the cylinder rod 511 is attached, so that the pivot position of the cylinder rod of the actuator with different thrust and stroke can be changed to accommodate differences in the weight and size of the waterproof plate 4.

[0030] On the reinforcing material 7 on the back of the waterproof plate 4, pairs of rail members 18, 18 and guard members 19, 19 are provided on both the left and right sides and in the center, corresponding to each upright mechanism 5. Since all the rail members 18, 18 and guard members 19, 19 on both the left and right sides and in the center have the same structure and mounting configuration, only the one on the right side will be described in detail below.

[0031] As shown in Figures 5 to 7 (explained with the waterproof plate in an upright position), a mounting base plate 20 is welded to the vertical center of the back surfaces of adjacent vertical reinforcing members 7a, 7a of the reinforcing member 7. The flange portions 18a of a pair of left and right rail members 18, 18, which face vertically, are fixed to the back surface (rear surface) of the central part of this mounting base plate 20 by multiple bolts 21. In addition, the outward-facing flange portions 19a, 19a of a pair of left and right guard members 19, 19 are fixed to both the left and right sides of the mounting base plate 20, sandwiching the left and right rail members 18, by multiple bolts 21.

[0032] The rail members 18, 18 protrude rearward (towards the back surface of the waterproof plate 4), and their rear end surfaces (which are the bottom surfaces when the plate is in a fallen position) are 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 towards the back surface of the waterproof plate 4 from the starting end to the ending end (from the upper end to the lower end in Figures 5 and 6). As shown in Figure 6, a stepped portion 18c is formed at the ends of the left and right guide surfaces (inclined surfaces) 18b, 18b by a surface that intersects the guide surface 18b at an obtuse angle. The rolling rollers 15, 15 fall into this stepped portion 18c when the waterproof plate 4 rotates to the upright position.

[0033] The guard members 19, 19 have side wall portions 19b, 19b that extend along the guide surfaces 18b, 18b of the rail members 18, 18 and project backward, and restricting portions 19c, 19c that extend inward to the left and right from the rear ends of the side wall portions 19b, 19b (see Figure 7). 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.

[0034] Furthermore, the vertical dimension of the guard member 19 is shorter than that of the rail member 18, and the restricting portion 19c is positioned on the hinge mechanism 8 side (below the waterproof plate 4 in the upright position) of the rail member 18. Specifically, as shown in Figure 5, the starting end of the restricting portion 19c is positioned below the starting end of the rail member 18. This is to prevent the rolling roller 15 from being positioned between the guide surface 18b and the restricting portion 19c when the waterproof plate 4 is in the lowered position.

[0035] Next, the bracket 30 connected to the tip of the cylinder rod 511 of the erection mechanism 5 will be described. As shown in Figure 8, the bracket 30 comprises a base portion 31 which is roughly rectangular in front view, and erection portions 32, 32 which rise from the left and right sides of the base portion 31.

[0036] The base portion 31 has a through hole 31a that penetrates in the vertical direction (the direction in which the upright portions 32, 32 rise) and a through hole 31b that penetrates in the horizontal direction. The through holes 31a and 31b are in communication with each other.

[0037] The upright portions 32, 32 have elongated holes 32a, 32a that penetrate horizontally and are long in the vertical direction, positioned opposite each other on the left and right sides.

[0038] As shown in Figure 9, the tip of the cylinder rod 511 is inserted through the through hole 31a of the bracket 30. This tip has a hole (not shown) that penetrates in the left-right direction, and the bracket 30 is connected to the tip of the cylinder rod 511 by inserting a bolt and nut 40 through this hole and the through hole 31b and fastening them together.

[0039] The connecting shaft 522 in the middle of the arm 52 of the erecting mechanism 5 is inserted through the elongated holes 32a, 32a provided in the erecting portions 32, 32 of the bracket 30. In other words, the bracket 30 is allowed to move a small relative distance Δini with respect to the connecting shaft 522 of the arm 52. To put it another way, some play is formed in the connection between the cylinder rod 511 and the arm 52.

[0040] As shown in Figure 10, the control device C consists 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, such as a commercial power supply, and to a control signal wiring LN2 extending from the operation panel C2.

[0041] Additionally, the power supply wiring LN3 and the control signal wiring LN4 extending from the control panel C1 are connected to the connection box 50.

[0042] Furthermore, the connection box 50 is connected to each electric cylinder 51 by power supply wiring LN5 and control signal wiring LN6.

[0043] Next, the operation and effects of the waterproofing panel device 1 will be explained. As shown in Figures 1 to 3, under normal conditions, the waterproofing panel 4 is completely in a reclined state, and the top surface of the waterproofing panel 4 and the floor surface F are almost flush. In emergencies such as floods or torrential rains, when it becomes necessary to prevent water from entering the building, the control device C is operated to activate each of the uprighting mechanisms 5 simultaneously.

[0044] When each of the erecting mechanisms 5 is activated, the arm 52 gradually rotates upward around one end (front end). Then, the rolling rollers 15, 15 pivotally supported at the other end of the arm 52 come into contact with the guide surfaces 18b of the rail members 18, 18 on the back surface of the waterproof plate 4, and move downward relative to the waterproof plate 4 while gradually pushing it upward.

[0045] As shown in Figures 4 to 6, when the waterproof plate 4 rotates to the upright position, the rolling roller 15 drops into the stepped portion 18c of the rail member 18.

[0046] To return the waterproof plate 4 to its lowered position, the control device C is operated to reverse the rotation of the motor 512 of the electric cylinder 51. This causes the arm 52 to rotate backward, and the rolling roller 15 to disengage from the stepped portion 18c. The rolling roller 15 then contacts the restricting portion 19c of the guard member 19, and the waterproof plate 4 is pushed in the lowered direction via the restricting portion 19c.

[0047] Then, when the cylinder rod 511 retracts to its minimum stroke position, the motor 512 automatically stops, and the waterproof plate 4 rotates to its lowered position and stops.

[0048] Next, the maintenance and inspection procedures for the electric cylinder 51 will be explained based on Figures 9 to 13.

[0049] As shown in Figure 9, when the waterproof plate 4 is in the collapsed position, each cylinder rod 511 is in the minimum stroke position (i.e., the initial position of the electric cylinder 51), and the connecting shaft 522 of the arm 52 is positioned at the front end of the elongated holes 32a, 32a of the bracket 30.

[0050] When performing maintenance and inspection work on the electric cylinder 51, the control device C is operated. Specifically, as shown in Figure 12(a), the control panel C2 has a display unit SC, and the main screen P1 of the display unit SC displays an up button B1 for raising the waterproof plate 4, a down button B2 for lowering the waterproof plate 4, a stop button B3 for stopping the operation of the waterproof plate 4, and an inspection button B4 for performing maintenance and inspection work on the electric cylinder 51. By operating the up button B1, down button B2, and stop button B3 as appropriate, the normal operation of the waterproof plate 4 can be performed.

[0051] As shown in Figure 12(b), when the inspection button B4 is pressed, the display unit SC switches to the inspection screen P2. The inspection screen P2 displays the inspection start button B10, the inspection interruption button B11, and the return button B12 which returns to the main screen P1.

[0052] When the inspection start button B10 is pressed, the electric cylinder 51 is driven in the extension direction, and the cylinder rod 511 extends by a predetermined distance Δtest from the minimum stroke position (see Figure 11). Next, the drive of the electric cylinder 51 is stopped for a predetermined time (for example, a few seconds). After that, the electric cylinder 51 is driven in the retraction direction, and the cylinder rod 511 is retracted to the minimum stroke position (see Figure 9). Here, since the distance Δtest is set to less than the distance Δini, the connecting shaft 522 of the arm 52 does not come into contact with the front end of the elongated holes 32a, 32a of the bracket 30 during the inspection operation (see Figure 11).

[0053] Furthermore, if the inspection interruption button B11 is pressed during the inspection operation of the electric cylinder 51, the inspection operation of the electric cylinder 51 will be interrupted. In addition, the control panel C1 is capable of accepting operation of the control device C during the next maintenance inspection when the cylinder rod 511 is in the minimum stroke position.

[0054] The PLC (Programmable Logic Controller) installed in the control panel C1 monitors the position information of the cylinder rod 511 output from each electric cylinder 51 in the forward and backward directions during the inspection operation of each electric cylinder 51, thereby determining whether each electric cylinder 51 has operated normally. In other words, the control panel C1 of the control device C functions as a monitoring means for monitoring the operation of the electric cylinders 51. Note that the monitoring may also be performed to determine whether each electric cylinder 51 has operated normally based only on the position information during the extension operation of the cylinder rod 511, or only on the position information during the retraction operation.

[0055] As shown in Figure 13(a), once the inspection operation of each electric cylinder 51 is successfully completed, the control panel C1 displays a pop-up message on the display unit SC indicating that the inspection operation of each electric cylinder 51 has been completed.

[0056] On the other hand, as shown in Figure 13(b), if the error between the operation of any of the electric cylinders 51 and the operation instruction from the control device C falls outside the acceptable range during the inspection operation of the electric cylinders 51, the control panel C1 will display a pop-up message on the display unit SC indicating that an abnormality has occurred in the electric cylinder 51.

[0057] If an abnormality occurs in the electric cylinder 51 (in this embodiment, an abnormality in the central electric cylinder 51), the waterproof plate 4 can be raised using the left and right electric cylinders 51, or another lifting mechanism such as a hydraulic cylinder from the outside, and maintenance can be performed on the malfunctioning electric cylinder 51.

[0058] As explained above, the control panel C1 operates only the electrically operated electric cylinder 51 without operating the waterproof plate 4, collects information on the electric cylinder 51 and electrical components, and monitors whether or not it is operating normally. This allows the control panel C1 to determine whether or not maintenance on the electric cylinder 51 and electrical components is necessary, thus simplifying the maintenance and inspection of the waterproof plate device 1.

[0059] Furthermore, there is play in the connection between the erection mechanism 5 and the waterproof plate 4. This allows the electric cylinder 51 to be driven without operating the waterproof plate 4 with a simple structure. In addition, the operation of the erection mechanism 5 can be made more stable compared to a configuration where there is play in the connection between the erection mechanism 5 and the case 3.

[0060] Specifically, the erection mechanism 5 is provided with an arm 52 that receives driving force from the electric cylinder 51 and transmits force to the waterproof plate 4. The connecting shaft 522 of the arm 52 is inserted through elongated holes 32a, 32a provided at the tip of the cylinder rod 511, allowing relative movement in the extension and retraction direction. As a result, since the waterproof plate 4 is supported by the arm 52, the electric cylinder 51 can be driven without the load of the waterproof plate 4 being applied to the electric cylinder 51.

[0061] Furthermore, since a bracket 30 with elongated holes 32a, 32a is attached to the tip of the cylinder rod 511, the inspection distance of the electric cylinder 51 can be easily changed by replacing the bracket 30.

[0062] Furthermore, since the control panel C1 is configured to return the cylinder rod 511 to its initial position after monitoring the inspection operation of the electric cylinder 51, the inspection operation of the electric cylinder 51 can be continuously monitored.

[0063] Furthermore, since the electric cylinder 51 has an external output function that detects its own operating status and outputs it to the control device C, the operation of the electric cylinder 51 can be monitored with a simple structure.

[0064] Although 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 depart from the spirit of the present invention are also included.

[0065] For example, in this embodiment, the control device C is shown to monitor the positional information of the cylinder rod 511 in the forward and backward direction output from the electric cylinder 51, but it is not limited to this, and may also monitor the current value or voltage value supplied to the electric cylinder 51. Alternatively, the amount of deformation of the cylinder rod 511 may be monitored using a strain sensor. Alternatively, the internal temperature of the electric cylinder may be monitored using a temperature sensor. Alternatively, multiple of these may be monitored in combination.

[0066] Furthermore, in the above embodiment, an example was given in which the electric cylinder 51 operates within a range in which the connecting shaft 522 of the arm 52 does not come into contact with the front ends of the elongated holes 32a, 32a of the bracket 30 during inspection. However, the torque after the connecting shaft 522 comes into contact with the front ends of the elongated holes 32a, 32a may also be monitored.

[0067] Furthermore, in the above embodiment, a configuration was illustrated in which there is play in the connection between the uprighting mechanism 5 and the waterproof plate 4, allowing the operation of the electric cylinder 51 to be monitored while the waterproof plate 4 is not moving from the lowered position. However, the invention is not limited to this configuration, and the electric cylinder 51 and the waterproof plate 4 may be connected by a clutch, and when inspecting the electric cylinder 51, the electric cylinder 51 and the waterproof plate 4 may be disconnected and operated separately.

[0068] Furthermore, although the above embodiment illustrates a configuration in which there is play in the connection between the uprighting mechanism 5 and the waterproof plate 4, the invention is not limited to this, and there may also be play in the connection between the uprighting mechanism 5 and the case 3. Even in this case, the electric cylinder 51 can be driven without operating the waterproof plate 4 with a simple structure.

[0069] Furthermore, although the above embodiment illustrates a configuration in which a connecting shaft 522 is provided on the arm 52 and elongated holes 32a, 32a are provided on the cylinder rod 511, it is also possible to provide elongated holes on the arm 52 and a connecting shaft on the cylinder rod 511. [Explanation of Symbols]

[0070] 1 Waterproof plate device 3 cases (base) 4 Waterproof board 5 Orthostatic mechanism 9 aperture 30 brackets 32a long hole 51 Electric Cylinder (Actuator) 52. Arm (link mechanism) 522 Connecting shaft C Control device C1 Control panel (monitoring means) C2 control panel

Claims

1. A waterproof plate device comprising a waterproof plate pivotally attached to a base so as to be able to rotate vertically between a reclined position and an upright position, and an upright mechanism that pushes the waterproof plate up to the upright position, The aforementioned standing mechanism is equipped with an electric actuator. A waterproof plate device characterized by comprising monitoring means for monitoring the operation of the actuator when the waterproof plate is not moving from the lowered position.

2. The waterproof plate device according to claim 1, characterized in that there is play in the connection between the standing mechanism and the base.

3. The waterproof plate device according to claim 1, characterized in that there is play in the connection between the standing mechanism and the waterproof plate.

4. The aforementioned lifting mechanism is provided with a link mechanism that receives driving force from the actuator and transmits force to the waterproof plate. The waterproof plate device according to claim 3, characterized in that there is play in the connection between the actuator and the link mechanism.

5. The waterproof plate device according to any one of claims 1 to 4, characterized in that, after monitoring the operation of the actuator, the actuator is returned to its initial position.

6. The waterproof plate device according to claim 1, characterized in that the actuator has an external output function for outputting operation information.

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