JPS63234923A - Bathtub - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a bathtub.

BACKGROUND OF THE INVENTION Generally, hot water after bathing is either drained away, used for washing the next morning, or re-boiled by adding hot water. Conventionally, the decision whether to drain or reuse hot water has been made visually or by habitual processing.

Problems that the invention aims to solve However, if the degree of dirt is judged visually as in the past, it is difficult to use water even when the water is dirty and cannot be used for reboiling or washing. In some cases, the hot water may be drained even if it is clean. In many cases, hot water was wasted simply because it looked dirty, which was also a problem from the perspective of energy and resource conservation.

Therefore, the present invention aims to solve the above-mentioned conventional problems and to provide a bathtub that can save energy and resources.

Means for solving the problems and technical means of the present invention for solving the above problems include a bathtub body and a sensor for detecting the degree of contamination of hot water stored in the bathtub body. It is something.

Function: With the above configuration, the present invention can detect the degree of contamination due to drought, and can select whether to reuse or drain hot water based on the result.

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, a first embodiment of the present invention will be described.

FIG. 1 is a schematic explanatory diagram of a bathtub in a first embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a bathtub body, and a drain port 2 is formed at the bottom of the bathtub body.The drain port 2 is closed by a water stop valve 3, and hot water 4 is stored inside. 5 is a water tap, 6 is a water heater such as a gas bath kettle, and 7 is a sensor installed inside the bathtub body 1 at a position slightly lower than the middle part of the side surface, and for detecting the degree of contamination of hot water 4. For example, light emitting diode 8
and a photodiode 9. 10 is a display device for displaying the degree of contamination of hot water detected by the sensor 7, and is made of, for example, a liquid crystal.

The suboptimal operation and the operation of the above embodiment will be explained.

The light 11 from the light emitting diode 8 of the optical sensor 7 is
is transmitted and reflected on the opposing surface of the bathtub body 1. By measuring the amount of reflected light with a photodiode 9, the degree of contamination of the hot water 4 is detected. The detected degree of contamination is displayed on the display device 10 as numerical information or rank of contamination degree. By looking at this display, you can scientifically grasp the degree of contamination of hot water 4, which could only be grasped intuitively, and whether it is suitable for washing or not, or whether it can be reused as a bath the next day. It is possible to determine whether it is possible to reuse the item by using a purification device, or whether it is impossible to reuse it even if the purification device is activated.

Next, a second embodiment of the present invention will be described. FIG. 2 is a schematic explanatory diagram showing a second embodiment of the present invention.

In this embodiment, drainage and reuse are automatically controlled based on pollution level information from the pollution level sensor 7. That is, in the same way as in the first embodiment, it is determined whether to drain the hot water or reuse it in the washing machine based on the rank of the detected degree of contamination, and based on this, the control value [12 is activated, and if the degree of contamination is severe, operates the drain valve 13 to drain water. Since heat can be recovered from the drained hot water when the temperature is high, the drained hot water is led to the drained hot water tank 15 by the drained hot water discriminator 14, where it is heat exchanged by the heat exchanger 16, and can be used as another heat source. If the temperature of the drained hot water is low and there is no possibility of recovering the heat, it will be drained as is. On the other hand, if the degree of contamination detected by the sensor 7 is not severe, the pump 17 is operated under the control of the control device 12, and hot water is poured into the pond washer 18 for reuse. By using the sensor 7 in this way, hot water after being used as a bath can be used effectively and healthily.

Next, a third embodiment of the present invention will be described. FIG. 3 is a schematic explanatory diagram showing a third embodiment of the present invention.

The feature of this embodiment is that a purifying device 19 is provided between the bathtub body 1 and the water heater 6. The control device 12 is operated according to the rank of the degree of contamination of the hot water 4 detected in the same manner as in the first embodiment, and if purification is possible, the purification device 19 is activated to purify the contaminated hot water and use it for bathing. It may be reused or used in the washing machine 18 as in the second embodiment. If the degree of contamination is so severe that there is no point in purifying it, the drain valve 3 is activated to drain the water, and if the temperature is high, the hot water is led to the drain tank 15 in the same manner as in the second embodiment, and is heated for heat exchange. The heat is recovered in a vessel 16. The degree of contamination is displayed on the display device i.
If /110 is provided, monitoring is possible.

In addition, in each of the above embodiments, an optical sensor is used as the sensor 7 for detecting the level of contaminated water, but the sensor 7 is not limited to an optical sensor, and for example, a biosensor or the like can also be used. be.

Effects of the Invention As described above, according to the present invention, the degree of contamination of the hot water stored in the bathtub body is detected by a sensor, so that it is possible to select the reuse of the hot water and save energy. It is possible to reduce the amount of waste and save resources, which has a large effect.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram showing a bathtub in a first embodiment of the present invention, FIG. 2 is a schematic explanatory diagram showing a second embodiment of the present invention,
FIG. 3 is a schematic explanatory diagram showing a third embodiment of the present invention. 1...Bathtub body, 4...Hot water, 7...
...Sensor, 8...Light emitting diode, 9
......Photodiode, 10...Display device, 12...Control device, 13...Drain valve, 14...Drain water discriminator , 15...
Exhaust water tank, 16...Heat exchanger, 19...
Purification device. Name of representative patent attorney Toshio Nakao and one other person II
Figure 2 Figure 182 Acropolis E (Kakume Figure 3

Claims (3)

[Claims] (1) A bathtub characterized by having a bathtub body and a sensor that detects the degree of contamination of hot water stored in the bathtub body. (2) Claim 1 in which the sensor is a light sensor
Bathtub as described in section. (3) The bathtub according to claim 1, wherein the sensor is a biosensor.