JPS5973730A - Bath tub with water level detecting device - Google Patents

Abstract

PURPOSE:To detect the water level of a main body at multiple stages, to acknowledge the water level during the water supply even from the outside of a bath room, and to facilitate the positioning operation of the water level, by blocking the optical coupling of light, which is emitted from a light emitting group, with a light receiving group by a shielding material, which is located at the same water level as that in the main body, judging the signal from a light receiving group by a water level monitoring part, and displaying the result. CONSTITUTION:When a water level is gradually increased, a shielding material 6 in a water level detecting part 2 is also increased. An operating signal is sent to a light emitting group 4a of the water level detecting part 2 from a water level monitoring part 8 at every specified time. When light is shielded by the shielding material 6, the water level monitoring part 8 receives the signal from the light receiving element group 46 and sends an output operating signal to a water level display part 9, which displays the water level in the main body 1. When the water level in the main body 1 is suddenly increased during the time of bathing, hot water corresponding to the sudden increase flows to the main body 1 through a cap 5 at the top end of the water level detecting part 2 and a groove. When a length l1 of the shielding material 6 in the water detecting part 2 is longer than a interval l of a coupling element group 4, one or two light couplings are blocked without fail. Therefore the water level detection can be performed at accuracy corresponding to the interval l of the light coupling element group 4.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a bathtub with a water level detection device capable of detecting the water level in multiple stages.

Structure of the conventional example and its problems In the conventional water level detection device for a bathtub, as shown in FIG. The structure is such that the power supply is energized to send a signal to the notification unit 23 that water supply is complete, and the user is notified by a buzzer or the like.

Therefore, the user has to use the bar 21 to position the water level sensor 22 at the desired water supply level in advance, which is cumbersome.

Furthermore, it has the disadvantage that it can only detect a certain level of water level, and it also spoils the aesthetics of the bathroom.

OBJECT OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and is capable of detecting the water level in the bathtub in multiple stages, making it possible to check the water level in the water supply even in places other than the bathroom, and improving the aesthetic appearance of the bathroom. The object of the present invention is to provide a bathtub with a water level detection device that does not damage water level.

Structure of the Invention In order to achieve the above object, the bathtub with a water level detection device of the present invention includes a main body, a water level detection section for detecting the water level in the main body, and a light emitting element group provided on both sides of the water level detection section. a group of optical coupling elements constituted by a group of light receiving elements; a shielding proboscis provided in the water level detection section that blocks optical coupling of the optically coupled water and the child group as the water level rises and falls; and the optical coupling element group; The structure consists of a water level monitoring section that sends and receives operation signals to the element group, and a water level display section that displays the water level based on the output operation signal from this water level monitoring section. In order to prevent the light from being coupled to the light receiving element group by a shielding object located at the same water level as the water level inside the main body, the signal from the light receiving element group is judged by the water level monitoring section and displayed on the water level display section. It has the effect of being able to detect water in the main unit in multiple stages, and also making it possible to check the water level in the water supply even outside the bathroom, and also making it extremely easy to position the water level setting. DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In FIG. 1, reference numeral 1 denotes a main body of a bathtub with a water level detecting device, and a water level detecting section 2 is connected to the lower part of the main body 1 by a substantially U-shaped tube 3. Reference numeral 4 denotes a group of optical coupling elements provided at regular intervals in the vertical direction on both sides of the water level detection section 2, and this optical coupling element group 4 is composed of a light emitting element group 4a and a light receiving element group 4b. 5 is a cannon detachably provided at the upper end of the water level detection unit 2.

Reference numeral 6 denotes a shield that prevents optical coupling of the optical coupling element group 4, and is configured in a hollow cylindrical shape as shown in FIG. and flows into a groove leading into the body 1 as shown in FIG.

This shield 6 has a soft brush 7 around it in order to improve the transmittance of light inside the water level detection section 2, and is configured to constantly clean the inside of the water level detection section 2. The water level monitoring unit 8 that transmits and receives electrical signals to and from the optical coupling element group 4 is a water level display unit 9.
is connected to send an output operation signal to.

The operation of the above configuration will be explained below.

First, when water is started to be supplied into the main body 1 and the water level gradually rises, the shield 6 inside the water level detection section 2 also rises. Then, an operation signal is sent from the water level monitoring section 8 to the light emitting element group 4a of the water level detection section 2 at regular intervals, and the light is blocked by the shielding object 6 in either state a or b (, t'> t) in Fig. 4. Then, in response to the signal from the light receiving element group 4b, the water level monitoring section 8 sends an output operation signal to the water level display section to display the water level inside the main body 1.

Further, when the water level in the main body 1 rises rapidly during bathing, the rapidly increased amount of hot water flows into the main body 1 through the groove through the cap 5 at the upper end of the water level detection part 2. Therefore, the water level during bathing is determined by the length tl of the shield 6 in the water level detection unit 2
If the distance is longer than the distance t between the optical coupling elements 4 and 4, one or two optical couplings are always blocked.
Due to the loop-shaped configuration of the water level detection unit 2 and the cap 6,
Water can be prevented from flowing out.

Effects of the Invention As described above, according to the bathtub with a water level detection device of the present invention, the water level supplied into the main body can be detected in multiple stages, and the water level in the water supply can be checked even in places other than the bathroom. If this becomes possible, and furthermore, the output signal from the water level monitoring section is input to the microcomputer to control the water supply operation, the effect that the water level can be easily determined can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view showing the main parts of a bathtub with a water level detection device according to an embodiment of the present invention, Fig. 2 is a plan sectional view taken along line 8-A' in Fig. 1, and Fig. 3a is a A plan view showing the cap in Fig. 1, Fig. 4c is a side view of Fig. 4a, Fig. 4 a and b are enlarged side sectional views of the water level detection section in Fig. 1, and Fig. 5 is a conventional FIG. 2 is a perspective view showing the main parts of an example bathtub with a water level detection device. 1...Main body, 2...Water level detection section, 4.
... Optical coupling element group, 6 ... Shielding object, 8.
...Water level monitoring section, 9...Water level display section.

Claims (2)

[Claims] (1) A main body, a water level detecting section that detects the water level inside the main body, a group of optical coupling elements provided on both sides of the water level detecting section and composed of a light emitting element group and a light receiving element group, and a group of optical coupling elements inside the water level detecting section. a shield that is provided at the water level and blocks optical coupling of the optical coupling element group as the water level rises and falls; a water level monitoring section that transmits and receives operation signals to the optical coupling element group; A bathtub with a water level detection device comprising a water level display section that displays the water level based on an output operation signal. (2) A cap provided with a groove to prevent shielding objects from flying out and to allow water to flow back into the main body is removably attached to the two ends of the water level detection section.
A bathtub with a water level detection device as described in .