JP2011220084A - Water saving device for flashing toilet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device reusing comparatively clean secondary water (remaining water in a bath, rainwater, water used for rinsing clothes, and the like) which is not used so much at home, for flashing a toilet, because it is wasteful so much to flush the toilet by waterworks in which a vast amount of facilities and energy are used for high-level sterilization and purification processing in order to turn water from dam and rivers into driving water, even if an environment improvement attracts much attention worldwide and the emission of COand chemical substances should be suppressed as far as possible.SOLUTION: In the water tank 1, the secondary water 8 (remaining water in a bath, rainwater, water used for rinsing clothes, and the like) is stored, and sent to a tank 4 of the toilet by a well pump 3 whenever necessary. The secondary water is used whenever the toilet is used, so that the use amount of the waterworks 7 can be reduced.

Description

The present invention relates to an apparatus that uses water remaining in a bath, rain water, and the like as washing water for a flush toilet, thereby reducing the amount of water used and realizing effective use of water resources.

Traditionally, highly-washed waterworks suitable for drinking have been used as flush water for flush toilets.
Many of the remaining hot water, rain water, and rinse water for washing were washed away into the sewage without being used.

JP-A-2005-344490 JP-A-11-200449

This has the following problems.
(B) A large amount of clean water supply was used at a time for washing the flush toilet.
The water is precious drinking water that is highly purified and sterilized using large equipment and a lot of energy. Now that the preservation of the global environment is a question, washing toilets with this precious water should be reduced as much as possible.
(B) Remaining bath water, rain water, and rinse water for washing can be considered as relatively less dirty water sources that can be used at home, but most of them were discarded as sewage.
This invention is made | formed in order to implement | achieve the effective utilization of the water resource in a home.

Residual bath water, rain water, rinse water for washing, etc. are stored in the water storage tank 1 and then sent to the tank 3 of the toilet via the well pump 2. In order to prevent the backflow to the water main, the water from the water supply tank and the water storage tank can be switched by a three-way valve 5 with a check valve 4.

The amount of water used in the toilet can be reduced by the amount of water stored in the water storage tank. Also, if the energy and costs used for water treatment are reduced, CO ₂ will be reduced, which is very meaningful for the global environment.

It is the schematic of this invention. It is the schematic in the case of using a bathtub instead of a water storage tank.

Hereinafter, modes for carrying out the present invention will be described.
(I) When using the water storage tank 1 and sending it to the toilet tank 4.
Remaining bath water, rainwater, etc. are sent from the well pump 3 to the toilet tank 4 through the dust filter 2 for the storage tank 1.
(B) When sending directly from the bathtub 9 to the toilet tank 4.
The bathtub 9 is regarded as a water storage tank, the water inlet is immersed in the bathtub 9, and sent from the well pump 3 to the toilet tank 4 through the dust filter 2.

1 Water storage tank 2 Filter 3 Well pump 4 Toilet tank 5 Check valve 6 Three-way valve (switching valve)
7 Tap water 8 Secondary water (remaining bath water, rain water, rinse water for washing, etc.)
9 Bathtub

Claims (1)

The purpose was to reduce the amount of water supply by using water storage tanks, etc. so that relatively clean water such as remaining bath water, rain water, and rinse water for washing can be used as flush water for flush toilets. Water saving device.

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