JP3022958U - Medium water storage tank - Google Patents

Abstract

(57) [Abstract] [Problem] When a tank runs out of water, the minimum necessary amount of water is automatically supplied from other water supply units, and a medium water storage tank that can stably supply water from the tank is provided. To provide. SOLUTION: When the amount of water stored in a tank 6 becomes a predetermined amount or less, a sensor part provided in the tank 6 automatically opens a water pipe opening / closing device 11, so that other water supply parts are provided in the tank 6. Water is supplied. When the amount of water stored in the tank 6 exceeds a predetermined amount, the opening / closing device of the water supply pipe 8 is automatically closed and the water supply is stopped, so that the minimum necessary amount of water in the tank 6 is always secured. At the same time, the burden of managing the water in the tank 6 is reduced.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a system for storing rainwater or the like and using it as tap water such as flush toilet water and laundry water.

[0002]

[Prior art]

 Conventionally, precipitation mainly to buildings is stored in a tank, etc. as a water storage part through a water collection part, such as a rain gutter, and the water stored in this tank is pumped up by a pump etc. A system is known in which it is used as tap water such as washing water and the excess water in the tank permeates into the ground or is discharged into the sewer pipe.

However, since the amount of water stored in such a tank depends on the amount of rainfall, the amount of water in the tank can be reduced especially when the amount of water used exceeds the amount of rainfall. There was a risk that all of them would be used up, water could not be supplied when needed, and sedimented mud could be pumped up.

Therefore, for example, a water supply pipe or the like is connected to a tank so that the minimum necessary amount of water can be supplied from the water supply pipe into the tank when the water in the tank is exhausted.

[0005]

[Problems to be solved by the device]

 However, since many of these tanks are usually buried underground, it was difficult to check the amount of water stored in the tank. Recognizing that the water was gone, he had to open the water supply each time to replenish it, and after that, he had to close it himself.

In such a case, since it is not possible to confirm how much water has been replenished, there was a case where the water was used up again after the water was replenished.

The present invention has been made in view of these problems, and when the water in the tank is exhausted, the minimum necessary amount of water is automatically supplied from the other water supply parts, and the water in the tank is automatically supplied. It is an object of the present invention to provide a medium water storage tank that can stably supply water.

[0008]

[Means for Solving the Problems]

 In order to solve the above problems, a tank for storing water in the present invention is provided with a water collecting port for taking in water such as rainwater, a supply pipe for supplying water in the tank to an external supply unit, and other A tank for storing medium water, comprising a water supply pipe communicating with a water supply unit through an opening / closing device, and an overflow pipe for discharging excess water, wherein a suction port of the supply pipe is provided at least at a position above the lowest point of the tank. In addition to providing the sensor part in the tank, the sensor part is linked to at least the opening / closing device of the water supply pipe, and when the amount of water in the tank becomes a predetermined amount or less, the opening / closing device of the water supply pipe is automatically opened to a predetermined amount. The feature is that it automatically closes when the above occurs. Due to this feature, when the amount of water stored in the tank falls below a predetermined amount, the sensor part provided inside the tank automatically opens the water supply pipe opening / closing device, so that water is not supplied from other water supply parts inside the tank. Supplied. Then, when the amount of water stored in the tank exceeds a predetermined amount, the opening / closing device of the water supply pipe is automatically closed and the water supply is stopped, so that the minimum required amount of water in the tank can always be secured. The burden of managing the water in the tank is reduced.

In the tank for storing medium water according to the present invention, the supply pipe extending into the tank is a suction hose having at least a stretchability or flexibility, and the lower end suction port of the suction hose has a tank. It is preferably supported by a float inside. By doing so, the suction port of the suction hose is supported by the float and is always positioned above the stored water, so it is possible to pump out clean water in the upper layer that does not contain impurities or contaminants. I can.

The tank for storing gray water according to the present invention is vertically installed in the tank, and a sensor portion is provided at a predetermined position of a guide member that guides the float so that the float can slide in the vertical direction. It is preferable to detect the movement of the float that moves up and down depending on the change in water level. This prevents the float from floating and facilitates the installation of the sensor unit. In addition, the water supply pipe can be opened and closed by an inexpensive sensor with a simple structure.

The medium water storage tank of the present invention is provided with an uneven portion as a mud reservoir at a predetermined position on the bottom of the tank, and the movement of the float downward from a predetermined position is caused by the convex portion of the uneven portion. It is preferable that the contact is regulated. By doing this, it is possible to prevent the sediments and other impurities that have settled to the bottom of the tank from rolling up, and even when the float is at the lowest position, the muddy water that contains the sediments and other impurities is sucked in. There is no fear.

[0012]

【Example】

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. First, FIG. 1 shows a schematic diagram of a rainwater utilization system using a tank for storing water in the embodiment of the present invention. It is composed of a water collecting unit 1, a water storing unit 2 and a drainage unit 3.

The water collecting part 1 is composed of a gutter 5 for collecting water that has fallen on the roof of the building 4 and a gutter pipe 5 a continuous with a tank 6 as a water storage part 2. Since the filter bodies 7 having a proper filtering function are provided at two places in the gutter pipe 5a in this embodiment, the collected impurities such as rainwater are purified to some extent here, and then the tank is cleaned. It is designed to be flowed into the inside.

In the tank 6, in particular, as shown in FIG. 2, in addition to the gutter pipe 5a, a water supply pipe 8 extended from another water supply unit (not shown), and water in the tank 6 are appropriately externally placed. There is provided a supply pipe 9 for supplying the water to an exhaust pipe and an overflow pipe 10 linked to the drainage part 3.

An electromagnetic opening / closing valve 11 is provided at a predetermined position of the water supply pipe 8 so that water supply from another water supply unit into the tank 6 can be automatically adjusted. Further, the lower end opening 8a of the water supply pipe 8 in the tank 6 is formed so as to be located at least above the overflow pipe 10, so that the inside water in the tank 6 flows into the water supply pipe 8. Therefore, even if the water supply pipe 8 is a water supply pipe, there is no problem.

A pump device 12 having a suction port is attached to the end of the supply pipe 9 extending to the vicinity of the bottom surface of the tank 6, and the pump device 12 is operated to remove the water in the tank 6. By pumping up water, for example, water can be supplied to a flush toilet, a bathroom, a laundry, etc. in the building 4. Reference numeral 13 is a sterilizer for administering chlorine, for example, to sterilize the tap water to be supplied to each part.

Reference numeral 15 denotes a water level sensor as a sensor unit, which includes a sensor 15a provided in the supply pipe 9 above the pump device 12, and a sensor 15b provided further above the sensor 15a by a predetermined distance. Signals are sent from the sensors 15a and 15b to the control device 21 in FIG.

The overflow pipe 10 extending outward from the tank 6 is connected to a cylindrical body 16 having a large number of small holes formed on its peripheral surface as shown in FIG. Since this cylindrical body 16 is arranged in sand or crushed stone laid at the bottom of the hole dug in the ground, surplus water in the tank 6 flowing from the overflow pipe 10 is grounded. It is designed to penetrate. Further, the water that cannot penetrate into the ground at this stage is further discharged to the sewer pipe 17 via the overflow pipe 10 '.

Next, the operation of the intermediate water storage tank of the rainwater utilization system configured as described above will be described with reference to FIGS. 1 to 3. First, as shown in FIG. Water or the like is stored in the tank 6 as the water storage unit 2 by the water collection unit 1. Then, when the amount of water stored in the tank 6 exceeds a predetermined amount, surplus water is permeated underground by the drainage section 3 via the overflow pipe 10 or is discharged to the sewer pipe 17. .

When each user uses water in each supply unit 18 such as a flush toilet downstream of the supply pipe 9, an opening / closing valve 19 provided in the supply pipe 9 near each supply unit 18 is provided. It is opened (see Fig. 3). This is detected by the sensor unit 20, and the pump unit 12 in the tank 6 is operated via the control unit 21 to send the water in the tank 6 to each supply unit 18 via the supply pipe 9 as much as necessary. When the open / close valve 19 is closed, the pump device 12 is stopped.

Here, when the amount of water stored in the tank 6 decreases and the water level falls below the sensor 15a, the sensor 15a automatically opens the electromagnetic opening / closing valve 11 of the water supply pipe 8 via the control device 21. Therefore, the water from the other water supply unit is supplied into the tank 6. When the water level rises due to this water supply and reaches the position of the sensor 15b, the sensor 15b closes the electromagnetic on-off valve 11 via the control device 21 and the water supply is stopped.

As described above, in the medium water storage tank of the present invention, the stored rainwater can be positively used, and even if the stored water in the tank 6 is reduced, it is automatically supplied from other water supply parts. Since water is supplied, it will not happen that water cannot be supplied from the tank 6 to each supply unit. Further, since the water is automatically supplied, the user can confirm the amount of water stored in the tank 6 and reduce the management burden of supplying water as needed.

Further, since the water supply from the other water supply unit is automatically stopped after supplying a predetermined amount of water, it is possible to prevent accidentally supplying an unnecessarily large amount of water. Thus, when water is supplied from the water supply, the cost of using water can be reduced.

FIG. 4 shows a second embodiment of the present invention. In the tank 6 of this embodiment, a synthetic resin float 30 is vertically slidably fitted in a guide member 31. Is erected. The lower end of the flexible suction hose 9'extending from the end of the supply pipe 9 connected to the upper part of the tank 6 is penetrated from the upper part of the float 30 toward the side surface, as shown in FIG. As described above, the suction port 9a is formed below the side surface of the float 30. The pump device to be provided in the supply pipe 9 is preferably provided in the sterilization device 13, for example.

Sensors 32 and 33 are provided at upper and lower portions of the guide member 31, respectively. As shown in FIG. 5, in particular, the sensors 32 and 33 are sensors that detect the forward / backward movement of a pressing member 35 that is fitted in a recessed portion 34 formed at a predetermined position of the guide member 31 so as to be forward / backward and water-sealed. And the signal is transmitted to the control device 21.

In the present embodiment, the pressing plate 36 fixed to the tip of the pressing member 35 is fixed in the guide member 31 by being pressed inward by the inner peripheral surface 30 a of the float 30. The fixing plate 37, which detects the contact, transmits a signal to the control device 21 via the wiring cord 38. Further, the pressing member 35 is normally urged by a spring 39 so that the tip portion thereof is slightly projected from the outer peripheral surface of the guide member 31.

In order to facilitate smooth movement of the float 30 in the vertical direction, the protrusion of the pressing member 35 is formed in a substantially hemispherical shape, and the inner peripheral surface 30 a of the float 30 is vertically moved. A tapered surface 30b is formed at each end. Further, the pressing member 35 is normally urged by a spring 39 so that the tip end thereof is slightly projected from the outer peripheral surface of the guide member 31, and the urging force of the float 30 naturally descends at least by its own weight. It is set so that the movement of is not regulated.

Further, a plurality of convex portions 40 are formed on the bottom surface of the tank 6, and sediment such as mud is accumulated in the concave portions 41 formed between the convex portions 40. Since the lower part of the float 30 that descends as the water level lowers is regulated to abut against the upper part of the convex part 40, the suction port 9a is prevented from entering the concave part 41, and muddy water is prevented. It is designed not to be inhaled.

Therefore, in this embodiment as well, the same operational effects as the above-mentioned embodiments can be obtained, and since the suction port 9a is provided in the float 30, it moves up and down with the change of the water level. It is possible to always pump out clean water in the upper layer that does not contain impurities or impurities among the intermediate water stored in the tank 6. If the sensors 32 and 33 are sensors that detect the forward and backward movement of the pressing member 35 that is pressed by the inner surface 30a of the float 30 that moves up and down the guide member 31, the electromagnetic on-off valve 11 can be opened and closed by an inexpensive device. It can be automated.

FIG. 6 shows another embodiment of the present invention, in which a float 24 as a sensor portion is provided at one end of a connecting rod 23 which rotates about a shaft 22, and the other end is a water supply pipe 8. An opening / closing plug 25 capable of opening / closing the opening 8a is connected, and the float 24 is displaced up and down, whereby water is automatically supplied from the water supply pipe 8. Here, even if the intermediate water flows into the tank 6 and the water level rises to the level of the broken line, there is no influence on the closed state of the opening / closing plug 25.

As a result, water can be automatically supplied from another water supply unit without requiring a power source, so that the cost of the apparatus can be reduced.

Further, by using the control device 21 of the first embodiment or the connecting rod 23, the float 24 and the like of the second embodiment, when the water level in the tank becomes below the lower sensor part, the pump device 12 is If the water is forcibly turned off and the outflow of water from the supply pipe 9 is stopped, it is possible to prevent the risk that mud accumulated in the lower part of the tank is supplied together with water.

The embodiments of the present invention have been described above with reference to the drawings. However, the specific configuration is not limited to these embodiments, and there are changes and additions within the scope of the present invention. Also included in the present invention.

For example, the sensor unit may be automatically closed after being once opened by the sensor unit or after supplying a predetermined amount of water preset by the flow meter.

The pump device 12 may be provided outside the tank 6 at a predetermined position of the supply pipe.

[0036]

[Effect of device]

 The present invention has the following effects.

(A) According to the invention of claim 1, when the amount of water stored in the tank becomes equal to or less than a predetermined amount, the sensor unit provided in the tank automatically opens the opening / closing device of the water supply pipe. Water is supplied to the tank from other water supply parts. Then, when the amount of water stored in the tank exceeds a predetermined amount, the opening / closing device of the water supply pipe is automatically closed and the water supply is stopped, so that the minimum required amount of water in the tank is always secured and The work load for managing the water in the tank is reduced.

(B) According to the invention of claim 2, since the suction port of the suction hose is supported by the float and is always located above the stored water, the upper layer portion containing no impurities or contaminants You can pump out clean water.

(C) According to the invention of claim 3, the float is prevented from floating and the sensor part is easily installed. In addition, the water supply pipe can be opened and closed by a sensor that has a simple structure and is inexpensive.

(D) According to the invention of claim 4, it is possible to prevent the sinking of foreign matters and the like from the bottom of the tank and to prevent the sinking of the foreign matters even when the float is at the lowest position. There is no risk of muddy water containing things being sucked in.

[0041]

[Brief description of drawings]

FIG. 1 is an overall view showing a rainwater utilization system using a medium water storage tank.

FIG. 2 is an enlarged sectional view of a main part of FIG.

FIG. 3 is a schematic diagram showing the configuration of each device.

FIG. 4 is a cross-sectional view of an essential part showing a second embodiment of the present invention.

5 is an enlarged cross-sectional view of the main parts of FIG.

FIG. 6 is a schematic view showing another embodiment of the present invention.

[Explanation of symbols]

 1 Water collection part 2 Water storage part 3 Discharge part 4 Building 5 Gutter 5a Gutter pipe 6 Tank 7 Filter body 8 Water supply pipe 8a Opening 9 Supply pipe 9a Suction port 10, 10 'Overflow pipe 11 Electromagnetic on-off valve (switching device) 12 Pump device (suction port) 13 Sterilization device 15 Water level sensor 15a Sensor 15b Sensor 16 Cylindrical body 17 Sewer pipe 18 Supply part 19 Open / close valve 20 Sensor part 21 Control device 22 Shaft 23 Connecting rod 24 Float 25 Open / close plug 30 Float 30a Inner surface 30b Taper Part 31 Guide member 32, 33 Sensor 34 Recessed part 35 Pressing member 36 Pressing plate 37 Fixing plate 38 Wiring cord 39 Spring 40 Convex part 41 Recessed part

Claims (4)

[Scope of utility model registration request] 1. A water collecting port for taking in water such as rainwater, a supply pipe for supplying water in a tank to an external supply unit, and a water supply pipe communicating with another water supply unit through an opening / closing device. An overflow pipe for discharging excess water, and a medium water storage tank comprising: a suction port for the supply pipe at least above the lowest point of the tank; and a sensor section in the tank.
The sensor part is linked to at least the opening / closing device of the water supply pipe so that the opening / closing device of the water supply pipe is automatically opened when the amount of water in the tank is less than a predetermined amount, and is automatically closed when the amount of water in the tank is more than the predetermined amount. Medium water storage tank characterized by having become 2. A supply pipe extending into the tank is a suction hose having at least elasticity or flexibility, and a lower end suction port of the suction hose is supported by a float in the tank. The medium water storage tank described in 1. 3. A float is vertically installed in a tank, and a sensor is provided at a predetermined position of a guide member for guiding the float so that the float can slide in the up and down directions. The sensor moves up and down according to a change in water level. The medium water storage tank according to claim 2, which is adapted to detect the movement of the. 4. An uneven portion as a mud reservoir is formed at a predetermined position on the bottom of the tank, and the movement of the float downward from a predetermined position is restricted by the convex portion of the uneven portion. The tank for storing water in water according to claim 2 or 3.