JPH0630884A - Automatic washig device for bathtub - Google Patents

Abstract

PURPOSE:To provide the automatic washing device of a bathtub capable of being fitted to an existing bathtub for use with no special piping work. CONSTITUTION:A spray nozzle 3 is fitted to a casing 2, a detergent in a detergent tank 4 is sprayed into the whole bathtub 1 from the spray nozzle 3 by utilizing the city water pressure, stains are decomposed and removed by the chemical reaction, and the detergent and stains are finally washed off with the city water. The casing 2 is merely installed in the bathtub 1, and no special piping work is required at all. An automatic washing device can simply be fitted to the existing bathtub 1 for use, no pump is required for spraying the detergent, and the power consumption can be saved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device capable of easily and automatically cleaning a bathtub.

[0002]

2. Description of the Related Art As an automatic washing device for a bathtub, a washing nozzle is attached to the bathtub, an automatic drain valve is attached to a drain pipe below a drain port, and a circulation pump with a circulation pump is provided between the automatic washer and the drain pipe. An automatic bathtub cleaning device is known which is connected by a line and controls prewashing, cleaning, rinsing, etc. by a controller incorporated in the automatic cleaning device (Japanese Patent Laid-Open No. 2-341).
069 gazette and the same 2-341070 gazette).

[0003]

However, the above-mentioned known example has the following problems.

A. Since it is necessary to install the cleaning nozzle to the bathtub and to install piping for the circulation line, it can be applied when a new bathtub is installed, but it is practically impossible to attach it to the existing bathtub afterwards. .

B. Since a circulation pump is incorporated in the automatic washing machine, and the pressure is applied by the circulation pump to inject from the washing nozzle, the apparatus becomes complicated and large.

It is an object of the present invention to provide an automatic bathtub cleaning apparatus which does not have the above problems a to b.

[0007]

The structure of the automatic bathtub cleaning apparatus according to the present invention is as follows.

A casing installed in or near the bathtub, a detergent spraying nozzle attached to a part of the casing, a rinsing nozzle attached to a part of the casing, and a variable membrane inside the detergent chamber. And a water pressure chamber, the detergent chamber and the spray nozzle are connected by a detergent supply pipe with a detergent control valve, a water drain valve is attached to the water pressure chamber, and the water pressure chamber is connected to a water supply pipe with a water supply control valve. Alternatively, a detergent tank connected to a bath water heater, and a rinse water supply pipe branched from the water supply pipe through a three-way valve and connected to the rinse nozzle, and drainage for opening and closing a drainage valve of a drainage outlet through a connecting body The remaining hot water is drained by driving the valve switch and the drain valve switch to open the drain valve, and then with the drain valve open,
Water is sprayed from the water supply pipe through the rinse nozzle to the entire area of the bathtub to wash away dust and moisten the inner surface of the bathtub, and then the three-way valve is switched to supply water to the hydraulic chamber in the detergent tank. , This water supply pressure displaces the variable membrane toward the detergent chamber to increase the pressure inside the detergent chamber, so that the detergent inside is sprayed from the spray nozzle to the entire area inside the bath to adhere to the inside of the bath. To drain the water, open the water drain valve to drain water, and after the end, close the water drain valve, then open the drain valve after a certain period of time, switch the three-way valve and rinse the water from the water supply pipe. An automatic bathtub cleaning device consisting of a controller that sprays the entire area of the bathtub from a nozzle to wash away the detergent and decomposed dirt.

The water supply pipe may be connected to a hot water supply port of a bath water heater having an automatic hot water refilling function to supply cold water or hot water.

[0010]

[Operation] The casing is installed in the bathtub or at the edge of the bathtub,
The water supply pipe is connected to a water supply or bath water heater. When the washing mode switch is turned on, the controller drives the drain valve opening / closing device to open the drain valve and drain the remaining hot water in the bath. next,
The three-way valve is switched to the rinsing nozzle side to supply water to the rinsing nozzle, and water or hot water is sprayed from this nozzle over the entire area of the bath to wash away dust such as hair and moisten the inner surface of the bath. Next, the three-way valve is switched, the water supply control valve and the detergent control valve are opened, and water is supplied into the water pressure chamber in the detergent tank. When this water is supplied, the variable membrane is displaced toward the detergent chamber by the water pressure, and the pressure in the detergent chamber is increased. When the pressure is increased in this way, the detergent flows out from the detergent supply pipe to the spray nozzle side, and the detergent is sprayed from the spray nozzle to the entire area of the bath. As a result, the detergent adheres to the bathtub, and by waiting for a certain period of time in this state, the dirt is decomposed by the chemical force. Next, open the water drain valve to drain water from the water pressure chamber. After a predetermined time has elapsed, the drain valve is opened, the three-way valve is switched, and tap water is sprayed from the rinsing nozzle to the entire area of the bath to wash away the detergent and decomposed dirt. After washing off the detergent, the drain valve is closed, and when it is combined with a bath water heater with an automatic water filling reheating function, the controller outputs a signal for water filling to the water heater side.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a bathtub 1 and a casing 2 are installed at the edge of the bathtub 1. Reference numeral 3 denotes a spray nozzle attached to the casing 2, and a nozzle tip capable of spraying the entire area inside the bath 1 is attached. 4 is a detergent tank, and the interior of this detergent tank 4 is divided into a water pressure chamber 6 and a detergent chamber 7 by a variable membrane 5, and a water supply pipe 8 with a water supply control valve 9 is connected to the water pressure chamber 6, and the spray nozzle 3 The detergent chamber 7 and the detergent chamber 7 are connected by a detergent supply pipe 10 with a detergent control valve 11. In the case of the embodiment, the water supply pipe 8 is connected to the water supply. A rinse nozzle 12 is attached to the casing 2. The rinse nozzle 12 is connected to the water supply pipe 8 by a three-way valve 13 and a rinse pipe 14.

Reference numeral 15 is a drainage port of the bathtub 1, 16 is a drainage valve for opening and closing the drainage port 15, 17 is a wire (connecting body) connected to the drainage valve 16, and a drainage valve switch 18 with a motor is provided.
Thus, when the wire 17 is pulled, the drain valve 16 is opened, and when the wire 17 is returned, the drain valve 16 is closed. 19 is a drain valve 2 for draining water in the water pressure chamber 6.
The drainage pipe with 0, 21 is a controller for the following control.

The drain valve 16 is driven to open the drain valve 16 to drain the remaining hot water remaining in the bathtub 1.
Open water supply control valve 9 with 6 open, tap water → water supply pipe 8 →
Three-way valve 13-> Rinse nozzle 12 and tap water are supplied to pre-wash and moisturize the inside of the bath 1. Then, the drain valve switch 18 is driven to close the drain valve 16 and open the detergent supply valve 11. Switching the three-way valve 13 to supply tap water to the water pressure chamber 6 of the detergent tank 4.
Press in. By this press-fitting, the displacement film 5 is displaced toward the detergent chamber 7 side, the pressure in this chamber is increased, and the detergent is supplied to the detergent supply pipe 1.
Flow from 0 to the spray nozzle 3 side. As a result, the detergent is sprayed from the spray nozzle 3 to the entire area of the bath 1 and adheres to the entire area of the inner surface of the bath 1. Next, in order to release the pressure in the water pressure chamber 6, the water drain valve 20 is opened, and after the water drain is completed, the water drain valve 20 is closed.

After a certain period of time, the drain valve 16 is opened, the water supply control valve 8 is opened, the three-way valve 13 is switched, and tap water is sprayed from the rinsing nozzle 12 into the entire bath 1 to wash away the detergent and decomposed dirt. . After washing off the detergent, the drain valve 16 is closed and a signal for filling the water is output to the bath water heater with the automatic water filling and reheating function.

[0015]

The effects of the present invention are as follows.

A. Spray detergent into the bath with water pressure,
A pump for spraying detergent is not required because the stain is decomposed and removed by this chemical force. Therefore, the size of the device is reduced and the power cost for driving the pump is not required.

B. Since water is used only during pre-washing and when washing away the detergent, it is effective in saving water.

C. The device can be set by simply connecting a drain valve in the bathtub by combining it with a bath water heater with an automatic hot water refilling function, so the equipment work is minimal, and it is especially easy to install in an existing bathtub. be able to.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment of the present invention.

[Explanation of symbols]

 1 Bathtub 2 Casing 3 Spray Nozzle 4 Detergent Tank 5 Displacement Membrane 6 Water Pressure Chamber 7 Detergent Chamber 8 Water Supply Pipe 9 Water Supply Control Valve 10 Detergent Supply Pipe 11 Detergent Control Valve 12 Rinse Nozzle 13 Three-way Valve 14 Rinse Pipe 15 Drainage Port 16 Drainage Valve 17 Wire 18 Drain valve open / close switch 19 Drain pipe 20 Drain valve 21 Controller

Claims (2)

[Claims] 1. A casing installed in or near the bath, a detergent spray nozzle attached to a part of the casing, a rinsing nozzle attached to a part of the casing, and a variable membrane inside. It is divided into a detergent chamber and a water pressure chamber, the detergent chamber and the spray nozzle are connected by a detergent supply pipe with a detergent control valve, a water drain valve is attached to the water pressure chamber, and the water pressure chamber is routed through a water supply pipe with a water supply control valve. A detergent tank connected to a tap water or bath water heater, a rinse water supply pipe branched from the water supply pipe through a three-way valve and connected to the rinse nozzle, and a drainage valve of a drainage port opened and closed via a connecting body. Drain valve open / close and the drain valve open / close by driving the drain valve open / close to drain the remaining hot water, and then with the drain valve open, from the water supply pipe via the three-way valve to the rinse nozzle to the bathtub. Water is sprayed on the entire area To wash away the dust and moisten the inner surface of the bathtub, and then switch the three-way valve to supply water to the water pressure chamber inside the detergent tank, and this water supply pressure displaces the variable membrane toward the detergent chamber side to cause pressure inside the detergent chamber. The detergent inside the bath is sprayed from the spray nozzle to the entire area of the bath by adhering it to the inside of the bath, and then the drain valve is opened to drain the pressure in the hydraulic chamber. Close the drain valve, then open the drain valve after a certain period of time, switch the three-way valve to spray the water from the water supply pipe from the rinse nozzle to the entire area of the bath, and wash away the detergent and decomposed dirt. An automatic cleaning device for the bath, which consists of a controller to perform. 2. The bathtub according to claim 1, wherein a circuit for transmitting a signal for starting the filling of water to the bath water heater with an automatic filling water reheating function after the washing of the detergent is completed is incorporated in the controller. Automatic cleaning device.