JPH09302748A - Flush toilet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively utilize water resource and promote economy by erecting a water storage tank above a low tank of flush toilet and both the tanks are connected together, and hot water remaining in a bathtub is pumped up via a pump and pumping tube to the water storage tank. SOLUTION: A connecting pipe 6 is connected to the top of a tank 1 for a flush toilet, a water storage tank 7 is erected, and a pumping line 9 comprising a pump 8, hose, etc., for pumping up hot water remaining in a bathtub 10 to the tank 7 is arranged. Also, for checking the amount of water in the tank 7 from the outside, a water lever indicator 11 is attached to the outer wall surface of the tank 7. A water valve 12 is attached to the connecting pipe 6 from the storage tank 7 to the tank 1, operation of the valve 12 can be performed manually, or the inflow of water can be automated by interlocking a city water supply valve with a buoy 4. As long as a proper amount of water is kept in the tank 7, city water supply faucet 13 can be closed to stop the inflow of city water to the tank 1, and water can be flashed by using the valve 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flush toilet that can use the remaining hot water in a bath as flush water for a toilet bowl.

[0002]

2. Description of the Related Art Conventionally, as cleaning water for flushing toilet excrement in a flush toilet, tap water that can be used as drinking water supplied from a water supply is generally used. On the other hand, in general households, factories, etc., it is widely known that the remaining hot water in the bath is pumped up to an electric washing machine and reused as washing water. In that case, the current situation is that the wastewater is discharged to the sewer as it is.

[0003]

It is extremely uneconomical that the washing water in the conventional flush toilet exclusively depends on tap water, and it is a part of the remaining hot water in the bath after it is used as washing water. It is also extremely uneconomical to dispose of the surplus water as waste water, and there was a problem from the viewpoint of effective utilization of valuable water resources.

The present invention has been devised in view of the above problems, and devises so that the remaining hot water in the bath can be used as wash water for washing off the excrement of a flush toilet, which is a valuable water resource. The purpose is to provide an extremely economical flush toilet intended for effective use.

[0005]

The structure of the present invention for achieving the above object will be described with reference to an embodiment. The above description will be made on the upper part of the flush water reservoir 1 installed on the upper part of the toilet 2 in the flush toilet. A water storage tank 7 connected to the wash water reservoir 1 is erected so that the remaining hot water in the bathtub 10 in the bath can be pumped up through a water pumping passage 9 equipped with a water pump 8 inside the water storage tank 7. The opening / closing valve 12 is interposed in the connection flow path between the tank 7 and the wash water reservoir 1.

[0006]

By the above means, the pump 8 is operated at any time to pump up the remaining hot water in the bathtub 10 in the bath. When the toilet is used, the wash water in the wash water reservoir 1 for quantifying the amount of wash water for one use is allowed to flow down and the toilet bowl 2 is washed, and then the opening / closing valve 12 is opened for the required time to temporarily reduce the wash water. A required amount of remaining hot water in the water tank 7 is allowed to flow down to fill the wash water reservoir 1 with a predetermined amount of water, and the remaining hot water in the bath can be used as wash water for the flush toilet.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will now be described based on examples with reference to the drawings.

Reference numeral 1 denotes a conventionally well-known washing water reservoir installed on the upper part of the toilet 2 in the flush toilet for quantitatively determining the amount of washing water for one time. The wash water reservoir 1 is provided with a clean water connection pipe 3 that is connected to the water supply, and the clean water is automatically washed by an opening / closing valve 5 that works in conjunction with a float 4 that follows the internal water level of the wash water reservoir 1. It has a conventionally known structure in which a predetermined amount of water is controlled to flow into the water reservoir 1.

In the present invention, a water storage tank 7 constructed by connecting a connection pipe 6 to the upper portion of the washing water reservoir 1 is installed. The amount of water stored in the water storage tank 7 is arbitrary, but one having a water storage amount of about 50 to 200 liters is preferable.

The storage tank 7 is constructed so that the remaining hot water in the bathtub 10 in the bath can be pumped up by using a pumping passage 9 such as a pumping hose equipped with a pumping pump 8 and the inside of the pumped up water tank 7 It is desirable to equip the outer wall surface of the water storage tank 7 with an appropriate water storage amount indicator 11 such that a transparent pipe communicating with the inside is vertically arranged so that the water storage amount can be confirmed from the outside.

An opening / closing valve 12 is provided in the connecting pipe 6 which serves as a flow path from the water storage tank 7 to the wash water reservoir 1. The opening / closing operation of the opening / closing valve 12 may be performed manually, or the opening / closing valve 5 of the inflowing clean water to the washing water reservoir 1 may be replaced by the float 4.
The same means as automatically controlling the inflow of clean water in parallel with the above is separately and independently provided inside the wash water reservoir 1 and opened / closed so that the inflow water from the water tank 7 can be automatically controlled. It is also possible to automate the opening / closing operation of the valve 10.

Reference numeral 13 in the drawing denotes a water stopcock which is conventionally installed in the connection pipe 3 of the waterworks.

With the above structure, the pump 8 can be operated to pump the remaining hot water of the bath into the water storage tank 7 at any time via the pumping passage 9 such as a pumping hose.

In a state where the remaining hot water is pumped up to the water tank 7 and holds a proper amount of water, the stop cock 13 is closed so that clean water does not flow into the wash water reservoir 1.
In such a state, when using the toilet, the flush water in the flush water reservoir 1 for quantitatively measuring the amount of flush water for one time is operated by appropriately operating the switch to flush the flush toilet 2 and then open the open / close valve 12 only for the required time. Then, the required amount of the remaining hot water in the water storage tank 7 is made to flow down into the wash water reservoir 1 in which the wash water has been reduced as the wash water, whereby the wash water reservoir 1 can be filled.

When the opening / closing valve 12 is of a manual type, the toilet user opens and closes the opening / closing valve 12 each time to allow the remaining hot water in the water tank 7 to flow down to fill the flush water reservoir 1. When the open / close valve 12 is an automatic type,
Whenever the wash water reservoir 1 becomes empty, a predetermined amount of the remaining hot water in the water storage tank 7 can be automatically flowed down to fill the wash water reservoir 1.

If the remaining hot water in the bath cannot be supplied to the water tank 7 and the amount of water stored is insufficient, the water tap 1 for the closed tap water is closed.
3 can be opened to set the clean water to flow into the wash water reservoir 1.

[0017]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, the remaining hot water of the bath can be used as it is as the washing water for washing out the excrement of the flush toilet, which is extremely economically advantageous and the bath It has an excellent effect that the remaining hot water can be effectively used as a valuable water resource.

[Brief description of drawings]

FIG. 1 is a partially cut explanatory view showing an embodiment of the present invention.

[Explanation of symbols]

 1 Washing water reservoir 2 Toilet bowl 3 Water supply connection pipe 4 Float 5 Open / close valve 6 Connection pipe 7 Water tank 8 Pumping pump 9 Pumping channel 10 Bath 11 Water storage indicator 12 Open / close valve 13 Stopcock

Claims (2)

[Claims] 1. A water reservoir 7 connected to the flush water reservoir 1 is installed above the flush water reservoir 1 installed above the toilet bowl 2 in a flush toilet, and a pump pump 8 is installed inside the water reservoir 7.
The remaining hot water in the bathtub 10 in the bath can be pumped up through the pumping channel 9 equipped with the above, and the opening / closing valve 12 is interposed in the connection flow path between the water tank 7 and the wash water reservoir 1. Flush toilets. 2. The flush toilet according to claim 1, further comprising a water storage amount indicator 11 for displaying the amount of water stored in the water storage tank 7.