JPH0643063U - Automatic rainwater utilization system - Google Patents

Abstract

(57) [Summary] [Purpose] An automatic rainwater utilization system that does not cut off during rainy seasons. [Structure] A rainwater utilization system in which the water level of the rainwater tank and the water level of the underground tank are detected by sensors, the water supply pump automatically operates, and when the rainwater is insufficient, water is supplied from the water supply.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a system for effectively using rainwater.

[0002]

[Prior art]

 Conventionally, there is a rainwater collection tank placed on the roof, rooftop, or aboveground, and the water tank is installed aboveground or underground.

[0003]

[Problems to be solved by the device]

 Equipment that depends only on rainwater cannot be used when rainwater is short. Also, when replenishing with water supply, it is troublesome to check the water tank one by one.

[0004]

[Means for Solving the Problems]

 The present invention temporarily stores rainwater in an underground tank, pumps this water to an elevated tank, and supplies it to various facilities such as toilets, sprinklers, and miscellaneous water.

The elevated tank has a rainwater tank and a clean water tank juxtaposed to allow water to flow from the clean water tank to the rainwater tank in one way. The rainwater tank is provided with a water level sensor, and the water level is lower than a predetermined water level. In case of rain, the water pump from the underground tank is activated to pump rainwater from the underground tank to the rainwater tank for water supply.

A water level sensor is also installed in the underground tank to stop the water supply pump when a specified low water level is reached to prevent idling and to open the solenoid valve connecting the clean water tank and the rainwater tank. Then, supply water from the clean water tank to the rainwater tank. When the rainwater tank reaches a certain high water level, the sensor of the rainwater tank closes the solenoid valve.

In this way, when the water storage in the underground tank is insufficient when the rainwater is dry, the water supply pump stops, and of course, the water supply to the rainwater tank is lost, and the water in the rainwater tank also runs short. At this time, the water supply tank automatically supplies water to the rainwater tank, and the rainwater tank always has water.

[0008]

【Example】

 The present invention will be described below with reference to an embodiment shown in the drawings.

The outline of the building is shown by the alternate long and short dash line, and an underground tank 1 is placed underground as a water storage tank, and rainwater is sent from a roof water collection tank 2 through a pipe 3. An overhead rainwater tank 4 and a clean water tank 5 are arranged side by side above, and an electromagnetic valve 8 provided with check valves 6 and 7 so that water flows from the clean water tank to only the rainwater tank between both tanks. It is connected by.

The underground tank 1 and the rainwater tank 4 are connected by a water supply pipe 9. The water supply pipe 9 is equipped with a water supply pump 10, and the rainwater stored in the underground tank 1 is supplied to the rainwater tank 4. To do. The tap water is supplied to the tap water tank 5. A water level sensor is installed in each of the underground tank 1 and the rainwater tank 4, and is electrically connected to the water supply pump 10. The water level sensor detects upper and lower levels of the water surface of each tank, and the water supply pump 10 Signal to start or stop the operation. When the water level in the rainwater tank 4 drops and reaches point B, the water supply pump 10 is stopped to prevent the pump from idling, and a water level drop warning is given by a lamp or buzzer, and the water between the water tank 5 and the rainwater tank 4 is notified. The electromagnetic valve 8 is opened to supply tap water from the tap water tank 5 to the rainwater tank 4.

The amount of rainwater stored in the underground tank is displayed in a control box such as a water supply motor, and a drought warning lamp, a buzzer, etc. are also arranged in this control box.

[0012]

[Effect of device]

 Since the present invention is configured as described above, even if there is no water stored in the underground tank during the rainwater drought period, water will be automatically replenished from the water supply, so there will be no interruption of water. Also, water is always automatically supplied to the elevated tank, and at the same time, when the amount of water stored in the underground tank is insufficient, the water level sensor also stops the water supply pump automatically, so there is no trouble. In addition, it is possible to avoid uneconomical situations such as the idling of motors and the dangers that result from them.

[Brief description of drawings]

FIG. 1 is a schematic diagram of the system of the present invention.

[Explanation of symbols]

 1 Underground tank 2 Water collection tank 4 Rainwater tank 5 Clean water tank 6, 7 Check valve 8 Electromagnetic valve 9 Water supply pipe 10 Water supply pump

Claims (1)

[Scope of utility model registration request] 1. A rainwater collection tank, an underground tank connected to the rainwater tank by a pipe, a rainwater tank for receiving water supply from the underground tank by a water supply motor, and a tap water tank juxtaposed to the rainwater tank. The rainwater tank and the clean water tank are connected via an electromagnetic valve, and a water level sensor is installed in the underground tank and the rainwater tank.When the water level in the rainwater tank drops, the water supply motor operates and the water level in the underground tank When the water level drops, the water supply motor stops, and the electromagnetic valve between the clean water tank and the rainwater tank is opened to supply the clean water to the rainwater tank.