JP2003227151A - Reuse system of bath water - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To supply the bath water in a bathtub to flushing tank for a toilet by switching operation to reuse it as flushing water for a toilet, in a reuse system of bath water in a bathtub. <P>SOLUTION: When a bathtub water level sensor FS2 detects a specified water level of a bathtub by turning on a changeover switch 25, the bathtub water is sterilized by the opening operation of a first opening/closing valve 8 and the operation of a bathtub pump 6 and fed to a flushing tank 3 of a toilet 2, and when a flushing tank FS1 detects a specified water level of the flushing tank 3 by means of turning off motion of the changeover switch 25, tap water can be supplied to the flushing tank 3 by the opening motion of a second opening/closing valve 12. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub water recycling system in which bathtub water (remaining water) in a bathtub can be used as washing water in a toilet. It is. [0002] Conventionally, water saving,
From the viewpoint of resource saving, various proposals have been made to reuse bathtub water (remaining water) after bathing as washing water for a washing machine. [0003] By the way, when the bath water in the bathtub is used for washing water, the bathtub water is supplied to the washing tub via a hose by a water pump permanently installed in the washing machine. However, if you want to use the bathtub water for flushing the toilet, store the bathtub water in a designated amount of flushing water in the flushing tank attached to the toilet bowl. It is necessary to replenish the water, the supply control of bathtub water is troublesome,
No practical application has yet been proposed. [0004] The present invention has been made in view of the above circumstances, and the bathtub water is automatically stored in a flush tank attached to the toilet until the bathtub water (remaining water) in the bathtub reaches an available water level. Can be replenished, and can be used for flushing. Switching between replenishment of the bathtub water and replenishment to the normal flushing tank can be easily performed by operating the changeover switch (main switch). It is an object of the present invention to provide a new bathtub water reuse system that can be used in a bathtub. [0005] In order to achieve the above object, the invention according to the first aspect of the present invention provides a bathtub water re-use which can be used as washing water for a toilet. A use system, a bathtub water level sensor for detecting a bathtub water level in the bathtub, a flush tank water level sensor for detecting a flush water level in a flush tank in a toilet, a lower portion of the bathtub, and the flush tank A tub water discharge pipe communicating with the tub, a tub pump connected to the tub water discharge pipe to feed bath water in the bath tub to the washing tank, and a water pipe communicating between the inside of the washing tank and a water supply source. When the bathtub water level sensor detects a predetermined water level or higher and the flush tank water level sensor detects a predetermined water level or lower, the bathtub pump is operated, and the bathtub water level sensor detects a predetermined water level or lower, or tank When the water level sensor detects a predetermined water level or higher, the bathtub water supply control means for stopping the operation of the bathtub pump, and when the water level sensor detects the predetermined water level or higher, communication between the water pipe and the water cleaning tank. When the flush tank water level sensor detects a predetermined water level or less, the flush water supply control means for controlling the communication between the flush pipe and the flush tank, the bathtub water supply control means and the clean water supply control A changeover switch for selectively switching the operation of the means, and according to such a feature, bathtub water in the bathtub can be reused as flushing water in the toilet,
In particular, the available bathtub water in the bathtub from the lower limit to the upper limit water level can be automatically replenished from the lower limit level to the upper limit level in the washing tank, and the bathtub water can be reused effectively. In addition, there is no troublesome work as in the related art. Further, by operating the changeover switch, the mode of reusing the bathtub water can be easily switched to the normal mode of using tap water. There is no hindrance to washing with normal tap water. Embodiments of the present invention will be described below based on embodiments of the present invention shown in the accompanying drawings. FIG. 1 is an overall system diagram of a bathtub water reuse system of the present invention, and FIG. 2 is a relay circuit diagram of the bathtub water reuse system. In FIG. 1, a bathtub water recycling system according to the present invention is provided between a bathtub 1 and a toilet 2 installed in a sanitary unit such as a house. Next, the bath tub water reuse system will be described. The lower half of the bathtub 1 is the underfloor space S of the house.
d, and at the bottom of the bathtub 1, a bathtub water outlet pipe 4 is provided.
Are connected at one end. This bathtub water outlet pipe 4 is laid substantially horizontally in the underfloor space Sd, then stands up, penetrates the floor and extends to the above-floor space Su, and the other end is connected to the upper part of the flush tank 3 of the toilet 2. ing. In the underfloor space Sd, the bathtub water outlet pipe 4 has a bathtub pump 6, a germicidal lamp 7 as a sterilizing means, and a first on-off valve in order from the upstream side to the downstream side (from the bathtub 1 to the washing tank 3 side). 8 are connected in series, and these are automatically operated in response to a signal from the relay unit UR as described later. A bathtub water level sensor FS2 composed of a float switch is disposed vertically at a horizontal portion of the bathtub water outlet pipe 4 in the vicinity of one side of the bathtub 1.
Numeral 2 detects the water level of the bathtub water (reserved water) in the bathtub 1, specifically, between the upper limit water level and the lower limit water level. The detection signal can be transmitted to the relay unit UR. In the washing tank 3, a washing tank water level sensor FS1 composed of a float switch is disposed vertically.
The flush tank water level sensor FS1 detects the level of flush water (reserved water) in the flush tank 3, specifically, detects between the upper and lower water levels, and sends the detection signal to the relay unit UR. It can be sent. An upper end of the washing tank 3 is connected to an open end of a water pipe 10 communicating with a water source 11, and a second opening / closing valve 12 is interposed in the middle of the water pipe 10. The second on-off valve 12 is automatically opened and closed in response to a control signal from the relay unit UR, as described later. Next, the configuration of the relay unit UR for controlling the operation of the bathtub water reuse system will be described with reference to FIG. 2. The control operation section of the first on-off valve 8 is provided in the 100 V AC power supply circuit. First valve circuit 14 to be connected
a, 14b, a pump circuit 15 to which the control operation units of the bathtub pump 6 and the germicidal lamp 7 are connected (connected to the power supply circuit via one of the first valve circuits 14b to which the normally open relay bv1 is connected) and a second. The second valve circuits 16a and 16b to which the control operation unit of the on-off valve 12 is connected are connected as shown in FIG. The 100V power supply circuit has a DC converter 1 for converting a 100V AC power supply to a 24V DC power supply.
The first sensor circuit 20a, which is connected to the open / close switches 21a, 21b of the bathtub water level sensor FS2, is connected to the DC power supply circuit connected to the DC converter 18.
20b, a second sensor circuit 22 to which the open / close switch 23 of the flush tank water level sensor FS1 is connected, a switch circuit 24 to which a manual changeover switch (main switch) 25 is connected, and the first and second open / close valves 8 , 12 are connected. Each of the circuits includes a relay group CX1,
Normally open or normally closed relay switches cx1, tx1, cx2, r1, b which are controlled to be switched by energizing and de-energizing TX1, CX2, R1, BV1, BV2 and their relay groups.
The groups v1 and bv2 are connected as shown in FIG. Next, the operation of this embodiment will be described with reference to FIGS. [When using bath water] In FIG.
When the manual changeover switch 25 is turned on, the switch circuit 2
4 is energized, the normally open and normally closed relay switches r1... Are respectively switched, and the switch circuit 24 is closed. As a result, the relay BV1 is energized, the relay BV2 is de-energized, and the normally-open and normally-closed relay switches bv1, bv2.
Further, if the bathtub switch sensor FS2 detects that the bathtub water level in the bathtub 1 is equal to or higher than a predetermined value, the relay CX
1 is not energized, and the normally closed relay switch cx1 is "closed".
The valve circuit 14 connected to the pump circuit 15
b is closed, the on-off valve 8 is opened, the pump circuit 15 is closed, the bathtub pump 6 is operated, and the germicidal lamp 7 is opened.
Is operated, the bathtub water having a predetermined water level or higher in the bathtub 1 passes through the bathtub water outlet pipe 4, is sterilized and disinfected by the germicidal lamp 7, and then sent to the washing tank 3. On the other hand, the second opening / closing valve 12 of the water pipe 10 is closed by switching of the relay switch bv2 of the second valve circuits 16a and 16b by the non-excitation of the relay BV2. When the water stored in the washing tank 3 reaches a predetermined water level or higher (upper limit water level), the washing tank water level sensor FS1
Detects this, the open / close switch 23 is closed and the relay CX2 is excited to close the second sensor circuit 22, so that the normally open and normally closed relay switches cx2 are switched, and the relays BV1 and BV2 are switched. Are not excited, the first on-off valve 8 is closed, the operation of the bathtub pump 6 is stopped, and the germicidal lamp 7 is turned off. When the water level in the water tank 3 falls again below a predetermined value (lower limit position) using the water in the water tank 3, the open / close switch 23 is opened.
The bathtub water in the bathtub 1 is again washed by the washing tank 3 by the above operation.
Sent to As described above, by repeatedly supplying the bathtub water in the bathtub 1 to the washing tank 3, the bathtub water level sensor FS2
Are detected to be equal to or lower than a predetermined water level (lower limit position), the on / off switches 21a and 21b are both closed, so that the first sensor circuits 20a and 20b are closed and the relays CX1 and T2 are closed.
X1 are both excited, and the normally closed relay switch cx1, t
Since x1 is set to “open”, the switch circuit 24 is opened, and one of the relay circuit 26 and the pump circuit 15 is opened.
Are opened, the first on-off valve 8 is closed, and the operation of the bathtub pump 6 is stopped. On the other hand, relay BV
As the other relay circuit 27 is closed by the excitation of 2, the switching of the normally closed and normally open relay switch bv2 · causes the second on-off valve 12 to be opened, and the water from the water source 11 Goes through the water pipe 10 and the washing tank 3
Can be replenished. When the water in the washing tank 3 reaches a predetermined water level (upper limit position), this is detected by the washing tank water level sensor FS1, and the open / close switch 23 is closed.
And the second sensor circuit 22 is closed.
X2 is energized and the normally closed relay switch cx2 • is opened.
Therefore, the relays BV1 and BV2 are both not energized, and the normally open and normally closed relay switches bv2 are switched to close the second on-off valve 12. When the water in the washing tank 3 drops to a predetermined water level (lower limit position), the open / close switch 23 is opened, so that the second action
The opening / closing valve 12 is opened, and clean water is replenished into the washing tank 3 again. [When water is used] As shown in FIG. 2, when the manual switch is turned off, the switch circuit 24 is opened and the relay R1 is de-energized.
One relay open circuit 26 is open, the other relay open circuit 2
7 maintains the closed state, the relay BV1 is de-energized,
The relay BV2 maintains the excited state, the first on-off valve 8 is closed, the bathtub pump 6 stops operating, and the germicidal lamp 7 remains off, while the excitation of the relay BV2 causes the second valve circuit 16a, 16b normally open and normally closed relay switch b
By the switching of v2 ·, the second on-off valve 12 maintains the open state, and the tap water from the tap water source 11 is supplied to the washing tank 3 through the tap water pipe 10 at the water pressure. When the water in the washing tank 3 rises to a predetermined water level (upper limit water level), this is detected by the washing tank water level sensor FS1, and the open / close switch 23 of the second sensor circuit is closed, and the second sensor circuit 2
2 is closed, the relay CX2 is excited, and the normally closed relay switch cx2 is opened, so that the relays BV1,
The BV2 is de-energized, and the normally open and normally closed relay switches bv2 are switched to close the second on-off valve 12. When the washing water in the washing tank 3 reaches a predetermined water level (lower limit position), the open / close switch 23 is opened, and the second opening / closing valve 12 is opened by the above-described operation, and the washing is performed. Water is resupplied into the tank 3 again. As described above, by turning on the changeover switch 25, which is the main switch, the bathtub water (remaining water) can be used for flushing the toilet. In particular, the bathtub water in the bathtub 1 can be used from a predetermined upper limit water level. It is possible to automatically control the supply of bathtub water to the washing tank 3 until the water reaches the lower limit water level, and to automatically stop the supply of water when the water in the washing tank 3 reaches the upper limit water level. Therefore, the bathtub water in the bathtub can be used without waste, and by operating the switch,
Since the above-mentioned operation is performed, there is no trouble. Also, there is no hindrance to washing with normal tap water. Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments, and various embodiments are possible within the scope of the present invention. As described above, according to the present invention, the bathtub water in the bathtub can be reused as flush water in the toilet, and particularly from the lower limit to the upper limit water level available in the bathtub. Bath water can be automatically replenished from the lower water level to the upper water level in the washing tank, so that the bath water can be reused effectively, and the conventional work is troublesome. There is no. Further, by operating the changeover switch, the mode of reusing the bathtub water can be easily switched to the normal mode of using tap water. There is no hindrance to washing with normal tap water.

[Brief description of the drawings] FIG. 1 is an overall system diagram of a bathtub water reuse system of the present invention. FIG. 2 is a relay circuit diagram of the bathtub water reuse system. [Explanation of symbols] 1 bathtub 2 toilets 3 Rinse tank 4 Bath water outlet pipe 6 bathtub pump 10 Water pipe 11 Water source 25 Changeover switch FS1 Rinse tank water level sensor FS2 Bathtub water level sensor M1 bathtub water supply control means M2 Water supply control means

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Masateru Doi             227 Kamimunekata, Oita, Oita City, Oita Prefecture             Kuno Corporation F-term (reference) 2D039 DA03                 2D060 AA03

Claims (1)

Claims 1. A bathtub water reuse system wherein bathtub water in a bathtub (1) can be used as washing water in a toilet, wherein the bathtub water in the bathtub (1) is used. A tub water level sensor (FS2) for detecting the water level of the tub, a rinsing tank water level sensor (FS1) for detecting the level of the rinsing water in the rinsing tank (3) of the toilet (2), and a lower part of the tub (1); A bathtub water outlet pipe (4) communicating with the washing tank (3); and a bathtub water in the bathtub (1) connected to the bathtub water outlet pipe (4), which is supplied to the washing tank (3). A bathtub pump (6), a water pipe (10) for communicating between the inside of the washing tank (3) and a water source (11), and a bathtub water level sensor (FS2) detects a predetermined water level or higher, and performs the water washing. When the tank water level sensor (FS1) detects a predetermined level or less, the bathtub pump (6) When the bathtub water level sensor (FS1) detects a predetermined water level or lower, or when the flush tank water level sensor (FS1) detects a predetermined water level or higher, the operation of the bathtub pump (6) is stopped. When the supply control means (M1) and the flush tank water level sensor (FS1) detect a predetermined water level or higher, the communication between the water pipe (10) and the flush tank (3) is interrupted. (FS
When 1) detects a water level below a predetermined level, the water pipe (1)
0) and a water supply control means (M2) for controlling the communication between the washing tank (3) and a switch for selectively switching and controlling the operation of the bath water supply control means (M1) and the water supply control means (M2). A bath water reuse system, comprising: a switch (25);