JPH04170928A - Washing method for bathtub - Google Patents

Abstract

PURPOSE:To cleanly remove the solid body adhering to the water line part, and to decrease the use quantity of water and a chemical agent by pouring water to the upper level than the water line of a bathtub before entering into a washing process of the bathtub, mixing the chemical agent into this water and allowing it to remain immersed. CONSTITUTION:To remaining hot water in a bathtub 1, water is supplied until it becomes the upper level than the water line through an injection nozzle 6 from a feed water pipe 17. Subsequently, a washing liquid is mixed into the remaining hot water from a washing liquid supply port 9, and it remains immersed as it is, for instance, all the night through. Next, the remaining hot water is drained by opening a drain port 3, and by feeding water from the injection nozzle 6, a small quantity of water is stored in the bathtub 1. Thereafter, by opening a washing liquid valve 10, washing liquid is injected into the bathtub 1 from in a washing liquid container 8, a three-way valve 19 is switched to a circulating duct line side, and by starting an operation of a heater 11 and a circulating pump l6 and injecting washing water heated and maintained at about 60 deg.C into the bathtub 1 from the injection nozzle 6, washing is executed. Subsequently, the three-way valve 19 is switched to a feed water side, clean water is injected into the bathtub 1 from the injection nozzle 6 and stored, and the washing liquid adhering to the circulating duct line passing through the inside of the bathtub and the circulating pump 16, and a heat exchanger 12 is washed off.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a bathtub cleaning method that automatically cleans and cleans the inside of a bathtub.

[Prior Art] As a device for automatically cleaning the inside of a bathtub, a nozzle is attached to the top or lid of the bathtub, and cleaning liquid (
There are well-known methods in which dirt is washed away by spraying water into the bathtub (Japanese Unexamined Patent Publication No. 60-158828, Utility Model No. 62-4).
270, 62-4271, 62-4174, 63
-71869, JP-A-2-57857).

Also, a cleaning device in which cleaning liquid is circulated is also known (Utility Model Publication No. 62-4272, Utility Model Publication No. 62-4273).
, 62-69977).

[Problems with the Prior Art] However, since all of the above-mentioned known bathtub cleaning devices use water pressure or chemical force to remove dirt, the dirt is the worst, and it is difficult to remove dirt from the draft area where solid matter adheres. There is a problem. Conventionally, efforts have been made to remove this dirt by increasing the cleaning time or using a large amount of chemical agents, but this method requires a large amount of water and chemical agents, making it uneconomical. be.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic method for cleaning a bathtub, which can cleanly remove solid matter adhering to the waterline, and which requires less water and chemical agents.

[Means to solve the problem] The configuration of the present invention is as follows.

A bathtub cleaning method that involves filling the bathtub with water above the water line, mixing a chemical agent with the water, and soaking the bathtub before starting the bathtub cleaning process.

In addition, the water for soaking can be added to the remaining hot water after bathing to raise the water level above the water line, and a chemical agent may be mixed in. After draining the water, fresh water may be collected above the waterline and the chemical agent may be mixed with this water. In addition, if the water used for soaking is left over and still warm, it may be left as is, or it is preferable to heat it to increase the effect. Further, soaking does not need to be carried out every time cleaning, but may be carried out, for example, every week or month.

[Example] The figure shows an example of the present invention, where numeral 1 indicates a bathtub and 2
is a circulation port provided at the bottom of the bathtub l, 3 is a drain port, and a drain valve (electromagnetic valve) 4 is attached to this drain port 3.

Reference numeral 5 denotes a lid of the bathtub l, and an injection nozzle 6 is attached to the center inside the lid 5, which rotates by water pressure.

A sensor 7 detects whether the lid 5 is correctly set in the bathtub l.

Reference numeral 8 denotes a cleaning liquid container attached to the bathtub 1. The cleaning liquid container 8 is filled with cleaning liquid, and the cleaning liquid container 8 and the bathtub 1 are connected through a cleaning liquid supply pipe (cleaning liquid supply port) 9, and the cleaning liquid is filled with the cleaning liquid container 8. A cleaning liquid valve (electromagnetic valve) 1 is installed in the supply pipe 9.
0 is attached.

11 is a heater, and inside this heater 11 is a heat exchanger 1.
2. Gas burner 13 is incorporated.

14 is an outlet pipe as a heating pipe connecting the circulation port 2 of the bathtub 1 and the inlet side of the heat exchanger 12; 15 is a heating pipe connecting the outlet side of the heat exchanger 12 and the three-way valve 19 attached to the water supply pipe 17; The entry pipe 16 as a channel is a circulation pump attached to the clay pipe 14 side, and the circulation circuit and the water supply pipe 17 constitute a circulation circuit including the inside of the bathtub. In addition, the water supply pipe 17 and the injection nozzle 6
In between, a one-shot joint 18 is attached to the lid 5, and when the lid 5 is set correctly, the one-shot joint 18 is also connected correctly.

A controller 20 performs the following control.

At the end of the bath, water is added to the remaining hot water in the bath 4@Il from the water supply pipe 17 via the injection nozzle 6 until it reaches above the water line. Next, the cleaning liquid (chemical agent) is mixed into the remaining hot water from the cleaning liquid supply port 9, and if necessary, the remaining hot water is circulated through the circulation pipe and heated to about 60°C by the heater 11, and then left as it is. For example - leave it to soak overnight. Next, the drain port 3 is opened to drain the remaining hot water, and then the drain port 3 is closed, and then water is supplied from the jet nozzle 6 to collect a small amount of water in the bathtub l. Next, the cleaning liquid valve lO is opened to inject the cleaning liquid from the cleaning liquid container 8 into the bathtub l. Next, the three-way valve 19 is switched to the circulation pipe side, the heater 11 and the circulation pump 16 are started, and the washing water heated and maintained at about 60'C is injected into the bathtub l from the injection nozzle 6. to clean the bathtub 1. Next, the heater 11 and circulation pump 16 are stopped, and the drain valve 4 is opened to drain the dirty wash water.

Next, the drain valve 4 is closed, the three-way valve 19 is switched to the water supply side, and clean water is injected into the bathtub l from the injection nozzle 6 and collected in the bathtub l. Next, start the operation of the circulation pump 16 and move inside the bathtub l → circulation port 2 → circulation pump 16 → (heater 11)
- Repeat the circulation from the three-way valve 19 to the water supply pipe 17 to the injection nozzle 6 to the bathtub 1 to wash away the cleaning liquid adhering to the bathtub 1 and the circulation pipe passing through the circulation pump 16 and heat exchanger 12. Repeat this rinse several times by switching to clean water. Next, the circulation pump 16 is stopped, the drain valve 4 is opened to drain the water, and then the three-way valve 19 is switched to the water supply side with the drain valve 4 open, and finishing cleaning is performed while the water is flowing. The drain valve 4 is closed to complete the cleaning process.

Incidentally, the soaking may be carried out in units of several weeks or one month, and for this purpose, the control including the soaking step may be manually selected each time. Of course, a control circuit may be constructed so that the number of times of washing is stored and the soaking step is automatically included when the number of times of washing exceeds, for example, 30 times.

Further, the chemical agent for soaking may be the same type as the cleaning liquid, or a different chemical agent may be selected.

[Effects of the present invention] As described above, the present invention performs soaking, and then sprays cleaning water mixed with cleaning liquid into the bathtub from a spray nozzle to remove dirt by chemical action and water jet energy.
Finally, I sprayed clean water to rinse off the cleaning solution and finish the job. This results in a first-order effect.

a. By soaking, the dirt (adhesion of solid matter) on the waterline of the bathtub will dissolve, so the dirt can then be removed effectively in a short time using the spray nozzle.

As a result, no water or chemicals are wasted.

b. If you use leftover hot water, you can soak it while it is still warm, which saves on the heat source and water used to heat it to increase its effectiveness.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the bathtub cleaning method and apparatus according to the present invention, and FIG. 2 is a sectional view of the bathtub. l... Bathtub 2... Circulation port 3
... Drain port 4 ... Drain valve 5 ...
・ Lid 6 ... Injection nozzle 7 ...
・Sensor 8...Cleaning liquid container 9...
・Cleaning liquid supply pipe 10...Cleaning liquid valve 11
... Heater 12 ... Heat exchanger 13
... Gas burner 14 ... Pressure pipe 15 ...
・ Immigration pipe 16 ... Circulation pump 17 ・
... Water supply pipe 18 ... One-shot joint

Claims (1)

[Scope of Claims] 1. A bathtub cleaning method in which, before entering the bathtub cleaning process, water is filled above the waterline of the bathtub, a chemical agent is mixed in the water, and the bathtub is soaked in the water. 2. The bathtub cleaning method according to claim 1, wherein after bathing is completed, water is added to the remaining hot water to raise the water level above the water line, and a chemical agent is mixed into the water and left to soak. 3. The method for cleaning a bathtub according to claim 1, wherein after the remaining hot water is once drained, water is collected above the water line, and a chemical agent is mixed in this water and left to soak. 4. The bathtub cleaning method according to claim 1, wherein the water in which the bathtub is soaked is heated.