JPS6397122A - Apparatus for feeding water to bathtub - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a water supply device for supplying cold water or hot water to a bathtub.

[Prior Art] Conventionally, a water supply device as described in Japanese Unexamined Patent Publication No. 55-135912 has been proposed. This water supply device includes upper and lower water level sensors installed near the bottom and at predetermined positions on the top of the bathtub, a water supply valve that enables water to be supplied from the water supply source to the bathtub, and a water supply start signal and a water supply start signal to the water supply valve. and a control device that outputs a stop signal. Here, the control device gives a water supply start signal to the water supply valve under the condition that the lower water level sensor confirms that there is no remaining water in the bathtub, and the water level in the bathtub reaches the appropriate water level based on the detection result of the upper water level sensor. Give a water supply stop signal to the water supply valve under conditions where it is confirmed that the

Therefore, according to the above-mentioned water supply device, water can be supplied to the appropriate water level while confirming that there is no remaining water in the bathtub by remote control without having to visit the bathroom.

In addition, with the water supply system described in Section 2, when the sewage level sensor confirms that there is residual water in the bathtub, a residual water alarm is output, so go to the bathroom and drain the remaining water before supplying water. It will start.

In addition, in the L water distribution system, a timer circuit is installed in the control device to set a fixed time period from the start of water supply, and the sewage level sensor detects a rise in the water level within the set time period. When the water level is rising slowly, it detects that the drain valve is open and stops the water supply.

In this case, a drain valve alarm is output, so the user must go to the bathroom and close the drain valve before restarting water supply.

[Problems to be Solved by the Invention] However, in the conventional water supply device described above, if there is residual water in the bathtub, it is necessary to go to the bathroom to drain the water and close the drain plug. Also, if the drain valve is open, you will need to go to the bathroom to close it.

Even if there is residual water in the bathtub or the drain valve is opened, the present invention can be used by remote control without having to visit the bathroom.
The purpose is to supply water to the appropriate water level in the bathtub.

[Means for Solving the Problems] The present invention provides a water level sensor installed near the bottom of the bathtub;
In a water supply device for a bathtub, which includes a water supply drive section that enables water supply to the bathtub from a water supply source, and a control device that outputs a water supply start signal and a water supply stop signal to the water supply drive section, the control device outputs The bathtub is equipped with a drain valve that is opened and closed by a valve open signal and a valve close signal, and the control device gives a valve open signal to the drain valve under conditions where the water level sensor confirms that there is residual water in the bathtub, and the water level sensor After confirming that there is no residual water in the bathtub, a valve close signal is given to the drain valve, and a water supply start signal is given to the water supply drive unit, and water is supplied under conditions when it is confirmed that the water level in the bathtub has reached the appropriate water level. It is designed to give a water supply stop signal to the drive unit.

[Operation] According to the present invention, when the water level sensor confirms that there is residual water in the bathtub, the control device opens the drain valve and allows the residual water to be drained without visiting the bathroom.

In addition, when the water level sensor confirms that there is no remaining water in the bathtub, the control device closes the drain valve and sends a water supply start signal to a water supply driver such as a water supply valve interposed in the water supply piping, thereby supplying water. Start.

Therefore, even if the drain valve is open, it is possible to close the drain valve and supply water without having to step into the bathroom.

Further, under the condition that the water level in the bathtub has been confirmed to have reached the appropriate water level, the control device gives a water supply stop signal I- times to the water supply drive unit to stop the water supply.

[Example] Fig. fJtJ1 is a schematic diagram showing a water supply device according to an embodiment of the present invention, Fig. 2 is a control system diagram of the water supply device, Fig. 3 is a control flow diagram of the water supply device, and Fig. 4 is a diagram showing a drain plug. FIG.

In FIG. 1, 11 is a bathtub, 12 is a hot water tank, and 13
is the control device.

Inside the bathtub 11, a lower water level sensor 14 is installed near the bottom, and a higher water level sensor 15 is installed at a predetermined position in the second part. The water level sensor 15 may have an adjustable setting position.

The bathtub 11 and the hot water tank 12 are connected by a water supply pipe 16, and a water supply valve (water supply drive unit) 17, which is a solenoid valve, is interposed in the middle of the water supply pipe 16. When the water supply valve 17 is opened, hot water is supplied from the hot water tank 12 to the bathtub 11.

A drain plug 18 is installed at the bottom of the bathtub 11. As shown in FIG. 4, the drain plug 18 includes a valve seat 19 embedded in the bathtub 11, a valve body 20 that approaches and separates from the valve seat 19, and a valve body 20.
The valve body includes a cam 21 that abuts against the lower end surface of the valve body 20 to move the valve body 20 toward and away from the valve seat 19, and a motor 22 that drives the cam 21.

That is, the drain plug 18 is moved by the cam 21 by the motor 22.
When the valve body 20 is driven, the valve body 20 moves up and down in the range indicated by the lift L, opening and closing the space between the valve seat 19 and the valve body 20.

An ultrasonic transducer 23 is fixed to the side of the bathtub 11. The ultrasonic vibrator 23 is made of lead zirconate, etc., and is driven by a drive circuit consisting of a Hartley oscillation circuit and a push-pull circuit, and generates ultrasonic vibrations of several If) KHz to The structure of the bathtub 11 and the remaining water in the bathtub are vibrated to clean the bathtub 11.

The control device 13 includes a water supply switch 24, an alarm lamp 25.
It is equipped with an alarm buzzer 26 and a full water lamp 27. The control device 13 includes a water supply control circuit 28 and a water level sensor 14.
, the ON signal output by each of the water level sensors 15 as a result of detecting the water level is input to the water supply control circuit 28 via the input circuit 29, 30, and as a result of the water supply switch 24 being pressed with the intention of starting water supply. A control device 1 that inputs an output ON signal to the water supply control circuit 28 via an input circuit 31
When the ON signal of the water supply switch 24 is applied, the water supply control circuit 28 of No. 3 executes the water supply control operation according to the flowchart shown in FIG. 17. Driving and controlling the drain plug 18 and the ultrasonic vibrator 23, driving the alarm lamp 25 and alarm buzzer 26 via the alarm output circuit 33, and driving the full water lamp 27 via the full water display circuit 34. Note that the water supply control circuit 28 has a built-in timer circuit 35.

That is, the water supply control circuit 28 of the control device 13 determines whether or not the water level sensor 14 detects zero water level in the bathtub 11 in step (2) after the ON signal of the water supply switch 24 is applied in step (2). Determine whether there is any residual water in the tank.

If it is confirmed in step (2) that there is water remaining in the bathtub 11, a water supply start signal is given to the water supply valve 17 in step (2). This water supply start signal is switched to a water supply stop signal after a certain period of time counted by the timer circuit 35, that is, after the water level in the bathtub 11 has risen by ÷3C. Thereafter, in step (2), the ultrasonic vibrator 23 is driven, and the bathtub 11 is cleaned with the remaining water. At this time, the water surface of the bathtub 11 is
Since it has been raised by +3 cm in step ■,
It is also possible to effectively clean and remove the scales that had adhered to the inner surface of the tank near the remaining ice water surface before rising. Thereafter, in step (2), a valve opening signal is given to the drain plug 18 to drain the remaining water after cleaning the tank. Thereafter, in step (2), the water level sensor 14 detects the water level of the bathtub 11 to be zero.

If the water level sensor 14 detects zero water level in the bathtub 11 in step ■ or ■, that is, if it is confirmed that there is no remaining water in the bathtub 11, a water supply start signal is given to the water supply valve 17 in step Water is supplied to remove dirt from the inner surface. This water is supplied from an elongated water supply port along the upper inner peripheral surface of the bathtub 11 to the entire inner surface of the tank, as shown at 36 in FIG. It may be something. Thereafter, in step (2), a valve closing signal is given to the drain plug 18, and in step (2), water is supplied at an appropriate temperature. Note that if the water supply start signal applied to the water supply valve 17 in step ■ is switched to the water supply stop signal after a short period of time counted by the timer circuit 35 to limit the water supply in step ■ to a short time, the water supply is restarted in step ■. It is necessary to give a water supply start signal to the valve 17, but ■
If the water supply in step ■ is at an appropriate temperature, step ■ can be omitted, and the water supplied in the initial stage of step ■ is used to remove dirt from the inner surface of the bathtub 11. The water supply may be for supplying water at an appropriate temperature for bathing.

Thereafter, in step [phase], it is detected whether the water level of the bathtub 11 has reached the appropriate water level based on the detection result of the water level sensor 15. This appropriate water level may be determined by ■the setting position of the upper water level sensor 15 itself, or by adding the increase in the water level based on the elapsed time counted by the timer circuit 35 from the time when the upper water level sensor 15 detects the water level. When reaching the appropriate water level is detected in step [phase], a water supply stop F signal is given to the water supply valve 17 in step 0, and the full water lamp 27 is turned on in step @. Lights up to indicate full water.

When it is detected in step [stock] that the appropriate water level has not been reached, the following determination is made in step O.

In other words, in step [phase], the timer circuit from the time when proper temperature hot water supply starts in step ■ (if step ■ is omitted as mentioned above, the time when the drain valve 18 is closed in step ■) to the present. The count time of 35 is
It is determined whether the standard filling time X, which is preset as necessary for filling the bathtub 11 with water, has elapsed. Through this determination, if it is confirmed that the standard water filling time In step [phase], a water supply stop signal is given to the water supply valve 17, and in step (2), the alarm lamp 25 is turned on and the alarm buzzer 26 is sounded.

Next, the operation of the above embodiment will be explained.

According to the embodiment described above, when the water level sensor 14 confirms that there is residual water in the bathtub 11, the control device 13 opens the drain valve 18 and drains the residual water without visiting the bathroom. Allow drainage.

Further, when the water level sensor 14 confirms that there is no residual water in the bathtub 11, the control device 13 closes the drain valve 18 and sends a water supply start signal to the water supply valve 17 interposed in the middle of the water supply pipe 16. and start watering. Therefore, even if the drain plug 18 is open, it is possible to close the drain plug 18 and supply water without visiting the bathroom.

Further, the control device 13 gives a water supply stop signal to the water supply valve 17 to stop the water supply under conditions where it is confirmed that the water level of the bathtub 11 has reached the appropriate water level based on the detection result of the water level sensor 15.

In addition, when there is residual water, the control device 13 supplies a certain amount of water to raise the water level and performs ultrasonic cleaning on the inner surface of the tank, thereby removing scale and the like adhering to the vicinity of the water surface. After that, it will be drained.

Further, after draining is completed and before closing the drain plug 18, a certain amount of water is supplied to remove dirt from the inner surface of the tank. Therefore, the bathtub 11 can be cleaned automatically and carefully, and labor for preparing for bathing and cleaning up afterwards can be reduced.

In addition, the water supply sources used for implementing the present invention include:
You can use storage type water heaters such as electric water heaters, gas water heaters, etc.

Further, the appropriate water level in the bathtub may be checked using a timer, water supply meter, or the like.

The present invention is also applicable to telecontrol devices.

[Effects of the Invention] As described above, according to the water supply device for a bathtub according to the present invention, even if there is residual water in the bathtub or even if the drain valve is opened, the water supply device can be used remotely without visiting the bathroom. By operation, water can be supplied to the bathtub to the appropriate water level.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing a water supply device according to an embodiment of the present invention, Fig. 2 is a control system diagram of the water supply device, Fig. 3 is a control flow diagram of the water supply device, and Fig. 4 is a schematic diagram showing a drain plug. It is. 11... Bathtub, 12... Hot water tank (water supply source)
, 13... Control device, 14... Water level sensor, 15
...Water level sensor, 17...Water supply valve (water supply drive unit)
, 18... Drain plug, 24... Water supply switch, 28.
...Water supply control circuit. Patent applicant: Sekisui Chemical Co., Ltd. Representative Hiroshi 1) Kaoru Figure 3 Figure 4

Claims (2)

[Claims] (1) A water level sensor installed near the bottom of the bathtub, a water supply drive unit that enables water to be supplied from the water supply source to the bathtub, and a control device that outputs a water supply start signal and a water supply stop signal to the water supply drive unit. In the water supply system for a bathtub, the bathtub is equipped with a drain valve that is opened and closed by a valve open signal and a valve close signal output by a control device, and the control device uses a water level sensor to confirm that there is water remaining in the bathtub. When the water level sensor confirms that there is no residual water in the bathtub, a valve close signal is given to the drain valve and a water supply start signal is given to the water supply drive unit to open the bathtub. A water supply device for a bathtub, characterized in that it gives a water supply stop signal to a water supply drive unit under conditions where it is confirmed that the water level has reached a proper water level. (2) Under conditions in which the water level sensor confirms that there is no residual water in the bathtub, the control device gives a water supply start signal to the water supply drive unit, and the drain valve is closed, before giving a valve closing signal to the drain valve. A water supply device for a bathtub according to claim 1, which supplies water to remove dirt from the inner surface of the bathtub beforehand.