JP3740192B2 - Emergency water shielding device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an emergency water shielding device, and is applied to, for example, a water storage tank (reservoir).
[0002]
[Prior art]
Conventionally, as an emergency water-impervious device installed in a water tank, there is one disclosed in Japanese Utility Model Publication No. 63-29209, for example. This type of emergency water-blocking device is designed to automatically close the water-blocking valve when an earthquake occurs, and the device configuration is equipped with a valve lid at the water supply port at the bottom of the water tank, and this valve lid can be opened and closed Lift with a winch from above the water tank. When an earthquake with a predetermined seismic intensity or more occurs, the ball is dropped from the cradle, the winch is unlocked, the wire is loosened, and the valve lid is closed.
[0003]
[Problems to be solved by the invention]
However, according to such a conventional emergency water shielding device, it is possible to automatically operate the water shielding valve when an earthquake occurs, but it is difficult to accurately grasp the state of the water shielding valve. For this reason, depending on the magnitude of the seismic intensity of the earthquake, it is unclear whether or not the water shutoff valve has been activated, and the response of the water tank manager may be delayed.
Further, in the case of a conventional emergency water shielding device, when returning a closed water shielding valve to a fully opened state, it is necessary for an administrator to go to the water reservoir and operate the winch, and the recovery operation of the water supply tends to be complicated. . In general, since the reservoir is provided in a hilly area or the like, when the manager goes to the site after the earthquake occurs, it tends to take time to recover the water supply due to deterioration of road conditions or the like.
[0004]
The present invention has been made in view of such a situation, and automatically shuts off the water tank when an earthquake occurs, and can promptly notify the administrator when the water shut-off valve is fully closed or fully opened. And it aims at providing the emergency water shielding apparatus which enabled it to control opening / closing of a water shielding valve easily even from a remote place.
[0005]
[Means for Solving the Problems]
The emergency water shielding apparatus of the present invention employs the following means in order to achieve the above object. That is, a water shutoff valve is provided at the water supply port of the water pipe provided at the bottom of the water storage tank, and a drive device for opening and closing the water shutoff valve is provided above the water storage tank, and the drive device and the water shutoff valve are provided. In an emergency water shielding device that is connected by a connecting member and has a control device that activates the drive device when a detection signal of a predetermined seismic intensity or more is input from a seismometer, the water shielding valve is attached to a vertical outer cylinder. An inner cylinder having a water supply window is slidably inserted, and a rectification cylinder having a rectification window for restricting the flow of water introduced into the water supply window is fixed to the upper end flange of the outer cylinder. A limiter that detects whether the water valve is fully closed or fully open and a notification device that can communicate with a plurality of telephones via a telephone line are provided, and the control device closes the water shutoff valve to the drive device when the detection signal is input. The operation command is sent, and the shut-off valve full close or full open signal is input from the limiter A notification command is sent to the notification device, and when the notification device receives an instruction to open and close the water shut-off valve via a telephone line, an operation command for opening and closing the water shut-off valve is sent to the drive device. It is said. As described in claim 2, it is desirable that the outer cylinder of the water shielding valve is provided with an intake pipe whose upper end protrudes above the water surface in the water storage tank. In addition to the detection signal from the seismometer, the control device may operate the drive device to close the impermeable valve in addition to the detection signal from the flow meter or the water level meter.
[0006]
[Action]
According to the emergency water shielding apparatus of the present invention, when the seismometer detects an earthquake having a predetermined seismic intensity or more, a detection signal is output to the control apparatus. Based on this detection signal, the control device turns on the operation switch of the drive device. The drive device drives the water blocking valve to the fully closed position via the connecting member. When the water shut-off valve is fully closed, a limit signal is output from the limiter to the control device, and this signal is processed to send a notification command to the notification device. The reporting device calls the telephones of a plurality of managers through a telephone line and informs that the water blocking valve is fully closed by voice or the like. When returning a fully-closed water shut-off valve to a fully-open state again, when one of the administrators sends a drive signal to the control device via a telephone line by telephone, the control device operates the drive device based on this drive signal. The switch is turned on and the impermeable valve is returned to the fully open position. When the opening operation of the water blocking valve is completed, the reporting device notifies the plurality of managers of the water blocking valve fully opened state via the telephone line.
[0007]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. A first embodiment of the present invention is shown in FIGS. As shown in FIG. 1, the emergency water shielding apparatus 1 is provided with a water supply pipe 3 at the bottom of a water storage tank 2, and a cylinder valve 4 as a water cutoff valve is provided at a water supply port of the water supply pipe 3. And the drive device 5 is provided in the upper part of the water storage tank 2, and the cylinder valve 4 and the drive device 5 are connected by the connection shaft 6 as a connection member. Further, a seismometer 11, a flow meter 12, and a water level meter 13 are provided at predetermined positions around the water tank 2 as detection devices for detecting an emergency situation, and these detection signals are processed. It is connected to the control device 7 by predetermined wiring. A notification device 8 connected to a plurality of telephones 9 through a telephone office via a telephone line is provided at a position adjacent to the control device 7.
[0008]
The water storage tank 2 can be used from a small tank having a tank capacity of, for example, 200 to 300 tons to a large tank having a capacity exceeding 1000 tons. As shown in FIG. 4, a sealing member 2b is attached to the ceiling hole 2a for inserting the connecting shaft 6, and the gap between the connecting shaft 6 and the ceiling hole 2a is hermetically sealed. The seal member 2b plays a role of preventing drops of water droplets and lubricating oil generated in the driving device 5 from dropping into the water storage tank 2, and preventing chlorine gas generated in the water storage tank 2 from entering the driving device 5.
[0009]
As shown in FIG. 2, the configuration of the cylinder valve 4 includes an outer cylinder 21, an inner cylinder 22 and a rectifying cylinder 23. The inner cylinder 22 is slidably inserted into the inner peripheral surface of the outer cylinder 21. A rectifying cylinder 23 is fixed to the upper end flange portion 21a of the outer cylinder 21 in a coaxial direction by a bolt. O-rings 24 and 25 for preventing water leakage are provided at the front end portion and the rear end portion of the peripheral surface of the inner cylinder 22. A water supply window 22 a is provided on the sliding surface of the inner cylinder 22 with the outer cylinder 21, and water in the water storage tank can be introduced from the inner cylinder 22 into the outer cylinder 21. As shown in FIG. 3, when the inner cylinder 22 slides in the axial direction of the outer cylinder 21, the water supply window 22 a looks into the upper part of the outer cylinder 21 and the water in the water storage tank 2 flows into the outer cylinder 21. Yes. That is, the valve opens and closes according to the moving height position of the inner cylinder 22. In addition, a flange 28 that restricts the movement of the inner cylinder 22 within the cylinder length range of the rectifying cylinder 23 is formed at an intermediate portion of the inner cylinder 22. A packing 29 that locks the flange 28 is provided on the bottom surface of the outer cylinder 21. The water supply windows 22 a are formed on the outer peripheral surface of the inner cylinder 22 with a predetermined length in the axial direction, and six water supply windows 22 a are provided on the outer peripheral surface of the inner cylinder 22 at 60 ° intervals. The upper part of the water supply window 22a is cut into a triangle, which is to prevent the inflow from increasing rapidly when the valve begins to open, and to make the flow of water smooth.
[0010]
Further, the rectifying cylinder 23 is provided with a predetermined interval in the inner diameter direction between the inner cylinder 22 and has rectifying windows 23 a on the cylindrical surface of the rectifying cylinder 23 at intervals of 60 ° in the circumferential direction. . The water in the water storage tank 2 passes through the rectifying window 23a, flows in a certain direction, and is introduced into the water supply window 22a. That is, the flow of water is regulated in the rectifying cylinder 23 before being introduced into the rectifying window 23a. An intake pipe 26 is formed so as to extend upward from a side surface immediately below the outer cylinder 21. As shown in FIG. 1, the tip of the intake pipe 26 reaches the vicinity of the ceiling of the water storage tank 2 and has a height that protrudes above the water surface in the water storage tank 2. As a result, when the cylinder valve 4 operates from the fully closed position to the open direction, air is sucked into the outer cylinder 21 from the intake pipe 26 to prevent the inside of the cylinder valve 4 from being in an excessive negative pressure state. The opening and closing of is improved. Moreover, it prevents that the piping after the water supply pipe 3 produced at the time of full closure becomes negative pressure. Furthermore, the burden on the outer cylinder 21, the inner cylinder 22 and the like is reduced, and the durability of the cylinder valve 4 and the driving device 5 is improved.
[0011]
As shown in FIG. 4, the drive device 5 includes a hydraulic cylinder 31, an electric pump 32, a valve unit 33, a manual pump 34, a limiter 35, and a stopper device 36. The hydraulic oil is circulated from the pressure tank of the electric pump 32 to the hydraulic cylinder 31 via the connection hose and the valve unit 33. When the hydraulic oil flows into the port A of the hydraulic cylinder 31, the movable part 31a of the hydraulic cylinder 31 is lowered, and the connecting shaft 6 is lowered accordingly. When the hydraulic oil flows into the port B, the hydraulic cylinder 31 raises the connecting shaft 6. The limiter 35 attached to the movable portion 31a of the hydraulic cylinder 31 stops the operation of the hydraulic cylinder 31 when the connecting shaft 6 moves by a predetermined distance according to the opening degree of the cylinder valve 4. The stopper device 36 prevents the movable part 31a of the hydraulic cylinder 31 from being lowered due to its own weight. In addition, about the pressure tank of the electric pump 32, in order to form the structure of the drive device 5 more compactly, a vertical tank is employ | adopted. The inside of the valve unit 33 has a valve structure capable of switching the hydraulic oil passage between the electric pump 32 side and the manual pump 34 side. When the operator operates the valve at the site and sets it to the manual pump 34 side, the hydraulic oil passage of the valve unit 33 is switched to the manual pump 34 hose side. For example, when the electric pump 32 is out of order, the operator can manually open and close the cylinder valve 4.
[0012]
As shown in FIG. 5, the limiter 35 is provided with a fully open limit 42 and a fully closed limit 44 at a predetermined interval on the side of the operating rod 41. An opening cam 43 and a closing cam 45 that can contact the full opening limit 42 and the full closing limit 44 are fixed to the operating rod 41 at predetermined height positions. A needle portion 46a of an opening meter 46 is fixed between the open cam 43 and the closed cam 45. As shown in FIG. 5, the operator visually determines the opening degree of the cylinder valve 4 by a scale plate 46b. It can be confirmed.
In addition, auxiliary limits 47 and 48 are provided in the vertical direction of the opening cam 43 and the closing cam 45 to secondarily limit the movement of the operating rod 41 beyond the fully opening limit 42 and the fully closing limit 44. Yes.
[0013]
As shown in FIG. 4, the stopper device 36 includes a locking claw 51, an electromagnetic solenoid 52, a return spring 53, and a limit switch 54. The locking claw 51 is attached to be movable in the horizontal direction in conjunction with the drive shaft of the electromagnetic solenoid 52. The rear end portion 52a of the drive shaft can contact the limit switch 54.
A guide bar 55 is vertically fixed to the upper end portion of the connecting shaft 6, and the locking claw 51 is locked to the lower end surface of the guide bar 55. The position of the lower end surface of the guide bar 55 is set to coincide with the height of the locking claw 51 when the water blocking valve 4 is in the fully open position.
At the start of the operation of the drive device 5, first, the movable portion 31a of the hydraulic cylinder 31 is slightly raised and held as it is for several seconds. Next, a voltage is applied to the electromagnetic solenoid 52, and the locking claw 51 is pulled backward. When the rear end portion 52 a of the drive shaft comes into contact with the limit switch 54, a signal for releasing the locking claw 51 is transmitted from the limit switch 54 to the control device 7. When the control device 7 sends a drive command based on this signal, the movable portion 31a is lowered to the fully closed position.
During the operation of the movable portion 31 a, the energization of the electromagnetic solenoid 52 is stopped, and the distal end portion of the locking claw 51 slides on the side surface of the guide bar 55.
Further, when the cylinder valve 4 is returned to the fully open position, the lower end surface of the guide bar 55 rises and reaches the position beyond the locking claw 51, and the locking claw 51 is returned to the original position by the return spring 53.
[0014]
The connecting shaft 6 is made of a band plate made of metal or the like, and is disposed between the cylinder valve 4 and the driving device 5 in a substantially vertical direction. The lower end of the connecting shaft 6 is fixed to the upper end tongue portion 27 of the inner cylinder 22, and the upper end of the connecting shaft 6 is fixed to the movable portion 31 a of the hydraulic cylinder 31 through the ceiling hole 2 a of the water storage tank 2. When the hydraulic cylinder 31 is operated, the connecting shaft 6 opens and closes the cylinder valve 4 in conjunction with the movement of the movable portion 31a.
[0015]
Next, as shown in FIG. 6, the seismometer 11 is installed inside the control panel together with the control device 7 and the notification device 8, or is installed on a strong wall or floor. When the seismometer 11 is shaken above a certain level, a force exceeding the set horizontal acceleration acts on the sensing body, the sensing body instantaneously falls and pushes down the lever, and turns off the micro switch. The detection accuracy of the seismometer 11 can be set, for example, within a range of (seismic intensity 0 to 5) of 250 gal or less.
[0016]
The flow meter 12 is provided outside the water storage tank 2 so that the flow rate immediately downstream of the water supply pipe 3 can be measured. When the amount of outflow from the water storage tank 2 exceeds a certain flow rate, a detection signal is output from the flow meter 12 to the control device 7. For example, the flow meter 12 sends a detection signal to the control device 7 in an emergency such as when a large amount of water in the water storage tank 2 leaks underground due to rupture of the underground piping.
[0017]
The water level meter 13 is provided with a water level sensor in the water tank 2 and can detect the upper limit and the lower limit of the allowable water level. For example, a detection signal is output to the control device 7 in an emergency such as when the water level of the water tank 2 is abnormally lowered. For the water level sensor, for example, an electrode rod, a float type switch, or the like can be used.
[0018]
Next, the control device 7 is configured to input detection signals from the seismometer 11, the flow meter 12, and the water level meter 13 and send an operation command to the drive device 5. When an emergency situation is determined by receiving detection signals from the seismometer 11, the flow meter 12, and the water level meter 13, the drive switch of the drive device 5 is turned on at a predetermined timing. Further, these control operations can be programmed by incorporating a microcomputer.
Further, after the opening / closing operation of the impermeable valve 4 is completed, the control device 7 inputs a fully open or fully closed signal, processes these signals, and sends a notification command to the notification device 8. The fully open or fully closed signal is output from the limiter 35 to the control device 7 when the fully open limit 42 or the fully closed limit 44 is actuated.
[0019]
The reporting device 8 is connected to the administrator's telephone 9 via a telephone station via a general telephone line (push phone line). A plurality of telephones 9 are set according to the number of managers, the number of management rooms, and the like. When a notification command is issued from the control device 7, each telephone set 9 is dialed according to a predetermined order, and the valve state of the cylinder valve 4 is transmitted to the administrator by a notification message. There are two types of notification messages, one that informs the fully open state and one that informs the fully closed state, and either one of the messages is sent in response to a report command from the control device 7. When the administrator picks up the handset, a message flows in voice or the like.
[0020]
In addition, the notification device 8 can also receive a drive signal from the administrator side through a telephone line. Specifically, a command from the administrator to fully open or fully close the cylinder valve 4 is issued in advance. It discriminates from the set personal identification number and sends it to the control device 7. When the control device 7 receives the drive command, the operation switch of the drive device 5 is turned on according to this command. Note that after the opening / closing operation of the cylinder valve 4 is completed, a return message is returned to the administrator's telephone 9.
Further, the notification device 8 can receive an instruction for the administrator to check the valve state of the cylinder valve 4 by a predetermined password, and in this case, the cylinder valve 4 can be opened and closed from the moving position of the movable portion 31 of the hydraulic cylinder 31. The position is determined and a valve status message is reported to the administrator's telephone 9.
[0021]
Here, as a telephone line of the reporting device 8, a general push phone line is used. In addition, when the notification device and receiver are connected by a special dedicated line as a means other than a telephone line, the location of the administrator's receiver is likely to be limited, and the administrator's operation becomes relatively troublesome. Cheap. In addition, the installation cost is enormous for installing a dedicated line, and it becomes difficult to attach a water shielding device to a plurality of water storage tanks.
On the other hand, when a general telephone line is used like the notification device 8, the administrator can receive a report with a general telephone 9 and can remotely open and close the cylinder valve 4 with the telephone 9. . In particular, recently, cellular phones, personal handyphones (PHS), and the like can be used. Therefore, management of the water storage tank is further facilitated by using these telephones by an administrator.
[0022]
As a power source for the drive device 5, the control device 7, and the notification device 8, a household AC power source is used. Further, the auxiliary battery is charged from the AC power source in preparation for a power failure in an emergency, and in the event of a power failure, the AC power source is switched to the auxiliary battery via the inverter in response to a command from the control device 7. Therefore, even if the area where the water tank 2 is installed due to an earthquake, etc., if the telephone line can be used, the cylinder valve 5 can be opened and closed remotely or the valve status can be confirmed. become.
Moreover, you may install a solar cell as an auxiliary battery. According to the solar cell, since it can be repeatedly charged with sunlight during the day, the opening and closing operation of the cylinder valve 4 can be repeatedly performed even if a long-time power failure occurs.
[0023]
Next, the operation of the emergency water shielding apparatus 1 will be described.
For example, when the seismometer 11 detects a shake greater than or equal to a predetermined seismic intensity, a detection signal is output from the seismometer 11 to the control device 7, and based on this detection signal, the control device 7 turns on the operation switch of the drive device 5, and the hydraulic cylinder 31 is driven. At this time, the connecting shaft 6 is lowered and the cylinder valve 4 is fully closed.
When the cylinder valve 4 is fully closed, a fully closed signal is output from the fully closed limit 44 to the control device 7, and the control device 7 sends a notification command to the notification device 8 based on this fully closed signal. The reporting device 8 makes a predetermined number of calls to the administrator's telephone 9 via the telephone line in response to the reporting command, and when the administrator places the telephone 9 in a talking state, the cylinder valve 4 is fully closed by voice from the reporting device 8. A message is sent to the handset telling you that it has become.
[0024]
Similarly, when an abnormality is detected by the flow meter 12 or the water level meter 13, the control device 5 operates the drive device 5 based on the detection signal to fully close the cylinder valve 4. In addition, after the closing of the cylinder valve 4 is completed, a message indicating that the cylinder valve 4 is fully closed is notified from the notification device 8 to the administrator through a telephone line.
[0025]
When returning the fully-closed cylinder valve 4 to full opening again, the manager calls the reporting device 8, presses a predetermined password, and sends a drive signal to the reporting device 8. Then, based on this drive signal, the control device 7 turns on the operation switch of the drive device 5, and the hydraulic cylinder 31 opens the cylinder valve 4 through the connecting shaft 6.
Then, when the cylinder valve 4 is fully opened, the control device 7 sends a notification command to the notification device 8 based on the full-open signal from the full-open limit 42. In response to the notification command, the notification device 8 sends a fully open message to the administrator's telephone 9 through the telephone line.
[0026]
Next, a flowchart of the opening / closing control of the cylinder valve 4 is shown in FIG.
Referring to FIG. 7, when the cylinder valve 4 is controlled on site, the operator operates the predetermined switch on the control panel to activate the driving device 5 (step 71), or the driving device. 5 is switched from the electric pump 32 to the manual pump 34 side, and the cylinder valve 4 is operated manually (step 72).
When the cylinder valve 4 is controlled from a remote place, a drive signal is sent to the notification device 8 through a telephone line, and an operation command is sent from the control device 7 to the drive device 5 by this drive signal (step 73). . That is, the administrator can open and close the cylinder valve 4 by selecting the above three operations.
In either case of on-site or remote operation, when the cylinder valve 4 is fully closed or fully opened, the valve state of the cylinder valve 4 is reported from the reporting device 8 to the administrator's telephone 9 through the telephone line (step 74). 75).
[0027]
On the other hand, in an emergency, as shown in steps 76, 77 and 78, the seismometer 11, the flow meter 12 or the water level meter 13 detects a preset seismic intensity, an excessive flow rate or an abnormally low water level, and the cylinder valve 4 is fully opened. To the fully closed state. Also in this case, after the closing operation of the cylinder valve 4 is completed, the notification device 8 notifies the administrator of the closed state of the cylinder valve 4 to the administrator's telephone 9 via the telephone line (step 74).
[0028]
According to the emergency water-impermeable device 1 of the first embodiment, since the flow meter 12 and the water level meter 13 are provided, the water-impedance valve is automatically activated when it is detected that there is excessive water supply or abnormally low water level in addition to the earthquake. Closed and safer management is possible. In addition, a water shielding valve is slidably inserted into the vertical outer cylinder 21 and the inner cylinder 22 having the water supply window 22a, and the flow of water introduced into the water supply window 22a is restricted to the upper end flange 21a of the outer cylinder 21. Since the so-called cylinder valve 4 is provided with the rectifying cylinder 23 provided with the rectifying window 23a, the structure is simple and hardly damaged, and the water can be quickly and surely blocked in an emergency such as an earthquake. The drive device 5 operates the hydraulic cylinder 31 with the electric pump 32 to move the connecting member 6 up and down. However, since the drive device 5 is also provided with a manual pump 34, it is manually operated even when a power failure occurs or the control device 7 fails. The water shut-off valve can be opened and closed. In the event of a power failure, the AC power supply is switched from the AC power source to the auxiliary battery by an instruction from the control device 7, so that the water shut-off valve is securely closed even if a power failure occurs due to an earthquake. If can be used, the opening and closing of the impermeable valve can be remotely controlled.
Furthermore, since a plurality of telephones 9 to be notified from the notification device 8 are set according to the number of managers and the number of management rooms, they are automatically notified to those who need contact.
[0029]
Next, a second embodiment of the present invention is shown in FIG. In the emergency water shielding apparatus according to the second embodiment, an auxiliary window 81 is provided on the inner cylinder 22 of the cylinder valve 4. The auxiliary window 81 is formed at the upper end portions of the sliding surfaces of the outer cylinder 21 and the inner cylinder 22 at a constant interval in the circumferential direction. The position of the auxiliary window 81 is arranged at an intermediate position of each water supply window 22a, and the hole shape is elliptical. When the inner cylinder 22 starts to rise during the operation of the cylinder valve 4, the water in the water storage tank 2 first flows into the inner cylinder 22 from the auxiliary window 81, and when the inner cylinder 22 further rises, the auxiliary window 81 and the water supply window It flows into the inner cylinder 22 from 22a. As a result, the amount of water sent to the water supply pipe 3 gradually increases, so that the opening / closing operation of the valve is hardly affected by a change in water pressure, and the cylinder valve 4 operates more smoothly.
[0030]
A third embodiment of the present invention is shown in FIG.
In the emergency water shielding apparatus according to the third embodiment, the connecting member is changed from the connecting shaft 6 to the connecting pipe 82. A cylindrical portion 83 is provided at the upper center of the inner cylinder 22, and fixing bolts 84 and 84 can be fitted in the radial direction of the cylindrical portion 83.
At the time of attachment, the lower end of the connection pipe 82 is inserted into the outer periphery of the cylindrical portion 83, the fixing bolt 84 is inserted into the attachment holes of the connection pipe 82 and the cylindrical portion 83, and the cylindrical portion 83 and the connection pipe 82 are tightened with nuts. The upper end of the connecting pipe 82 is also fixed to the movable part of the hydraulic cylinder 31 by the same fixing means.
When such a connection pipe 82 is used, there is little bending at the time of operation of the cylinder valve 4, the strength of the connection portion is improved, and the accuracy of adjusting the position of the cylinder valve 4 is improved.
[0031]
In the first to third embodiments, the cylinder valve is used as the water shielding valve of the emergency water shielding device. However, as other embodiments, a gate valve, a butterfly valve, and the like can be used instead of the cylinder valve. It is also possible to use.
As for the reporting time of the reporting device, in the first embodiment, the valve state when fully closed or fully opened is reported to the administrator. Accordingly, the administrator may be notified of the valve state in detail.
[0032]
【The invention's effect】
As described above, according to the emergency water shielding device of the present invention, the water shielding valve is slidably inserted into the vertical outer cylinder and has the water feeding window, and the water feeding window is inserted into the upper end flange of the outer cylinder. A rectifying cylinder with a rectifying window that regulates the flow of water to be introduced is fixed, a limiter that detects whether the water shutoff valve is fully closed and fully open, and a reporting device that can communicate with multiple telephones via a telephone line, When the seismic intensity of a certain level or more is detected, the control device sends an operation command to close the impermeable valve to the drive unit, and when a limiter full shut or full open signal is input from the limiter, issues a report command to the reporting device. When the notification device receives a command to open and close the water shut-off valve via the telephone line, it operates to send an operation command to open and close the water shut-off valve to the drive device. When the water shut-off valve is fully closed It is reported on the telephone line to the person. Therefore, even if the main manager is absent, it is reported to the necessary manager that the water shutoff valve of the water storage tank 2 has been closed, and the manager can quickly and accurately grasp even in a remote location. Can do. As a result, it is possible to promptly respond to emergencies and prevent secondary disasters.
In addition, since the administrator can remotely control the opening and closing of the water shut-off valve via a telephone line, there is no need to go to the site in an emergency, and a quick response can be made regardless of the road conditions to the site. . Moreover, it can also operate with a mobile telephone etc. For example, the burden of monitoring of a water tank can be reduced by operating from a home on a holiday or operating from a business trip destination.
In addition, a water shielding valve is provided at the bottom of the water tank, and a drive device for opening and closing the water tank is provided on the upper side of the water tank, connected by a connecting member, and moved up and down to open and close, so the structure is simple and reliable. Yes, there is no need for special civil engineering work to install the water shielding device, and the water shielding device can be installed with relatively low construction cost and short construction period. Easy.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing an emergency water shielding apparatus according to a first embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing a fully closed state of a cylinder valve of the emergency water shielding apparatus according to the first embodiment.
FIG. 3 is a longitudinal sectional view showing a fully opened state of a cylinder valve of the emergency water shielding apparatus according to the first embodiment.
FIG. 4 is a side view showing a driving device for an emergency water shielding device according to the first embodiment.
FIG. 5 is a side view showing a limiter of the emergency water shielding apparatus according to the first embodiment.
FIG. 6 is a schematic diagram for explaining the configuration of the control device for the emergency water shielding apparatus according to the first embodiment.
FIG. 7 is a flowchart for explaining opening / closing control of a cylinder valve of the emergency water shielding apparatus according to the first embodiment.
FIG. 8 is a longitudinal sectional view showing a cylinder valve of an emergency water shielding apparatus according to a second embodiment of the present invention.
FIG. 9 is a longitudinal sectional view showing a cylinder valve and a connecting member of an emergency water shielding apparatus according to a third embodiment of the present invention.
[Explanation of symbols]
1 Emergency water shielding device
2 water tank
2a Ceiling hole
2b Seal member
3 water pipe
4 Cylinder valve (water shielding valve)
5 Drive unit
6 Connecting shaft (connecting member)
7 Control device
8 Reporting device
9 Telephone
11 Seismometer (detection device)
12 Flow meter (detection device)
13 Water level gauge (detection device)
21 outer cylinder
21a Top flange
22 inner cylinder
22a Water supply window
23 Rectifier tube
23a Rectification window
26 Intake pipe
27 Top tongue
28 Flange
29 Packing
31 Hydraulic cylinder
31a Movable part
32 Electric pump
33 Parb unit
34 Manual pump
35 limiter
36 Stopper device
41 Actuator
42 Fully open limit
43 Open cam
44 Fully closed limit
45 closed cam
46 Opening meter
46a Needle part
46b Scale board
47, 48 Auxiliary limit
51 Locking claw
52 Electromagnetic solenoid
52a Rear end of drive shaft
53 Return spring
54 Limit switch
55 Guide bar
81 Auxiliary window
82 Connecting pipe
83 Cylinder
84 Fixing bolt

Claims (3)

A water shutoff valve is provided at the water feed port of the water pipe provided at the bottom of the water storage tank, and a drive device for opening and closing the water shutoff valve is provided on the upper side of the water storage tank, and the drive device and the water shutoff valve are connected to each other In an emergency water shielding apparatus having a control device that activates the drive device when a detection signal having a predetermined seismic intensity or more is input from a seismometer, the water shielding valve feeds water into a vertical outer cylinder. An inner cylinder having a window is slidably inserted, and a rectifying cylinder having a rectifying window for restricting a flow of water introduced into the water supply window is fixed to an upper end flange of the outer cylinder, and the water shielding valve Provided with a limiter for detecting whether the valve is fully closed or fully opened, and a notification device capable of communicating with a plurality of telephones via a telephone line, and the control device operates to close the water blocking valve to the driving device when the detection signal is input. When a command is sent and a signal for full closing or full opening of the impermeable valve is input from the limiter An emergency shut-off characterized by issuing a report command to the reporting device, and when the reporting device receives an instruction to open / close the water shut-off valve via a telephone line, sends an operation command to open / close the water shut-off valve to the drive device. Water equipment. The emergency water shielding apparatus according to claim 1, wherein an intake pipe having an upper end protruding on a water surface in the water storage tank is provided on an outer cylinder of the water shielding valve. 2. The emergency water shielding apparatus according to claim 1, wherein the control device operates the driving device not only by a detection signal from the seismometer but also by a detection signal from a flow meter or a water level meter.

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