JP2001140289A - Equipment for recycling bathtub drainage and rainwater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide equipment for recycling bathtub drainage and rainwater in a building such as a house. SOLUTION: A two-way valve (5) is provided for a drain pipe (3) of a bathtub (1) and a three-way valve (7) is provided on the downstream side of the two-way valve, while a first water supply pipe (11) for a washer (9) is connected to the upstream side of the two-way valve. The first water supply pipe is equipped with a pump (13) and one exit (15) of the three-way valve is connected to a cistern (17), while the other exit (19) is connected to a sewer pipe. A collecting pipe (25) for rainwater is connected to the cistern and a second water supply pipe 29 equipped with a pump (27) is connected to the cistern, while the downstream side of the pump in the second water supply pipe is branched into branch pipes (37) and (39) leading to a water storage tank (33) of a toilet bowl and an outdoor faucet (35) respectively. An overflow pipe (41) continuing to the sewer pipe is connected to the cistern, while a water quantity detecting means (43) for detecting the quantity of water in the cistern is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub drainage (drainage from a bathtub) and a rainwater recycling device in a building such as a house.

[0002]

2. Description of the Related Art Bath tub drainage and rainwater in buildings such as houses are generally discharged to a sewer pipe or the like without being reused. It is also known to use the remaining hot water in the bathtub by injecting it into a washing machine using a pump.

[0003]

Discarding reusable bath tub drainage and rainwater in a sewer without reusing them wastes water resources and is not preferable from the viewpoint of environmental protection. Causes bulk. In addition, it is extremely troublesome to inject the remaining hot water in the bathtub into the washing machine using a pump.If the bathtub and the washing machine are in separate rooms, use the pump to inject the remaining hot water in the bathtub into the washing machine. Is not practical. In view of such a situation, the present invention provides a bathtub drainage and rainwater recycling apparatus in a building such as a house.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a bath tub drainage and rainwater recycling apparatus in a building such as a house as described below.

(1) A two-way valve is provided in a drain pipe of a bathtub, a three-way valve is provided downstream of the two-way valve in the drain pipe, and a first port to the washing machine is provided upstream of the two-way valve in the drain pipe. A water supply pipe is connected, the first water supply pipe is provided with a pump, and one outlet of a three-way valve in a drain pipe of the bathtub is connected to a water storage tank arranged at a position lower than the bathtub, and the other outlet is connected. A drain pipe is connected, a rainwater collection pipe is connected to the water storage tank, a second water supply pipe equipped with a pump is connected to the water storage tank, and the downstream side of the pump in the second water supply pipe is used for storing toilet water. It branches into a branch pipe leading to a tank and an outdoor faucet, an overflow pipe connected to a sewer pipe is connected to the water tank, and a water amount detecting means for detecting the water amount in the water tank is provided. A tub drainage and rainwater recycling device (Claim 1). In the first embodiment, the two-way valve is provided in the drain pipe of the bathtub, and the three-way valve is provided downstream of the two-way valve in the drain pipe. Not only the case where the two-way valve and the three-way valve are integrally formed.

(2) The two-way valve, the three-way valve, and the pump of the first water supply pipe are integrally assembled in advance (claim 2).

[0007]

The rainwater entering the collection pipe of the rainwater always flows directly into the water storage tank. When the reservoir is full, excess water is drained from the overflow pipe to the sewer. When the washing machine is used, the two-way valve in the drain pipe of the bathtub is closed, and the pump of the first water supply pipe is operated to inject the drainage of the bathtub into the washing machine through the drain pipe and the first water supply pipe. That is, the drainage of the bathtub is used in a washing machine. When the water amount detecting means detects that the remaining amount of water in the water tank is low, the three-way valve in the drain pipe of the bathtub is operated to open one of the outlets, and the drainage of the bathtub is discharged from the outlet into the water tank. Inject into However, when it is not appropriate to reuse the drainage of the bathtub, for example, when the bathtub is washed with a detergent, or when there is sufficient remaining water in the reservoir, it is necessary to inject the drainage of the bathtub into the reservoir. If not, the three-way valve in the drain pipe of the bathtub is operated to open the other outlet, and drainage of the bathtub is discharged from the outlet to the sewer pipe. When the toilet is used or when watering the garden or washing the car, the pump of the second water supply pipe is operated to supply the water in the water storage tank to the water storage tank of the toilet or the outdoor faucet.

[0008] In the bath tub drainage and rainwater recycling apparatus of the second aspect, the two-way valve, the three-way valve, and the pump of the first water supply pipe are integrally assembled in advance. When the recycle apparatus is installed, these assemblies are attached as a single unit.

[0009]

Next, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows an example in which a bathtub drainage and rainwater recycling device according to the present invention is provided in a house, and this example will be described below.

[0010] Reference numeral 1 denotes a bathtub, and reference numeral 3 denotes a drain pipe of the bathtub 1. A two-way valve 5 is provided in the drain pipe 3 of the bathtub 1. A three-way valve 7 is provided downstream of the two-way valve 5 in the drain pipe 3. A first water supply pipe 11 to the washing machine 9 is connected to the drain pipe 3 on the upstream side of the two-way valve 5. The first water supply pipe 11 is provided with a pump 13. One outlet 15 of the three-way valve 7 in the drain pipe 3 of the bathtub 1 is connected to a water storage tank 17 disposed at a position lower than the bathtub 1 and the other outlet 19 is connected to a drain pipe (not shown) via a connection pipe 21. ). The rainwater that has fallen on the roof 23 etc. is collected in the collection pipe 25,
The collection pipe 25 is connected to the water storage tank 17. A second water supply pipe 29 having a pump 27 is connected to the water storage tank 17. The downstream side of the pump 27 in the second water supply pipe 29 is branched into branch pipes 37 and 39 which respectively reach a water storage tank 33 of the toilet 31 and a faucet 35 outside. An overflow pipe 41 connected to a sewer pipe (not shown) is connected to the water storage tank 17. Further, a water amount detecting means 4 for detecting the amount of water in the water storage tank 17.
3 is provided. As an example, the water amount sensing unit 43 displays the remaining amount of water in the water storage tank 17 or notifies the remaining amount by a warning unit such as a lamp when the remaining amount is low.

In the case shown in FIG. 2, the two-way valve 5, the three-way valve 7, and the pump 13 of the first water supply pipe 11 are previously assembled integrally.

[0012]

According to the bath tub drainage and rainwater recycling apparatus of the present invention, the bathtub drainage and rainwater can be stored in a washing machine and a toilet by an extremely simple operation. It can be supplied to a tank or an outdoor faucet and reused. When the bathtub drainage is supplied to the washing machine, the bathtub drainage is directly injected into the washing machine from the bathtub without passing through the water storage tank. It can be used for washing without cooling.

[0013] In the bathtub drainage and rainwater recycling apparatus of the second aspect, the two-way valve, the three-way valve, and the pump of the first water pipe are integrally assembled in advance. When the recycle apparatus is installed, these assemblies are attached as a single unit. Therefore, the installation work of the two-way valve, the three-way valve and the pump of the first water supply pipe is extremely easy, and the installation cost is greatly reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an example in which a bathtub drainage and rainwater recycling device according to the present invention is provided in a house.

FIG. 2 is a front view showing a state in which a two-way valve, a three-way valve, and a pump for a first water supply pipe are integrally assembled in advance.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bath tub 3 Drain pipe 5 Two-way valve 7 Three-way valve 9 Washing machine 11 First water supply pipe 13 Pump 15 One outlet 17 Water storage tank 19 The other outlet 21 Connection pipe 23 Roof 25 Collection pipe 27 Pump 29 Second water pipe 31 Toilet bowl 33 water storage tank 35 outdoor faucet 37 branch pipe 39 branch pipe 41 overflow pipe 43 water amount detection means

Claims (2)

[Claims] 1. A two-way valve is provided in a drain pipe of a bathtub, a three-way valve is provided downstream of the two-way valve in the drain pipe, and a first water supply to the washing machine is provided upstream of the two-way valve in the drain pipe. Connect the tubes,
The first water supply pipe is provided with a pump, and one outlet of the three-way valve in the drain pipe of the bathtub is connected to a water storage tank disposed at a position lower than the bathtub, and the other outlet is connected to a sewer pipe, A rainwater collecting pipe is connected to the water tank, a second water pipe provided with a pump is connected to the water tank, and the downstream side of the pump in the second water pipe is connected to a toilet water tank and an outdoor faucet, respectively. A branch pipe leading to the water tank, an overflow pipe connected to the sewer pipe is connected to the water tank, and a water amount detecting means for detecting the water amount in the water tank is further provided, bathtub drainage and Rainwater recycling equipment. 2. The bathtub drainage and rainwater recycling apparatus according to claim 1, wherein the two-way valve, the three-way valve, and the pump of the first water supply pipe are integrally assembled in advance.