JPH0552407A - Automatic cleaning device for bathtub - Google Patents

Abstract

PURPOSE:To provide an automatic cleaning device for bathtub that can be installed with a simple work and in a low cost. CONSTITUTION:A cleaning nozzle 3 is installed to a bathtub 1, and in a heat source unit 6 that is separately provided a heat exchanger 7 for supply hot water, heat exchanger 8 for additional combustion, cleaning agent tank 9, circulation pump 10, and controller 11 are assembled and, at the same time, the outlet side 8b of the heat exchanger 8 for additional combustion and the cleaning nozzle 3 are connected by an outgoing pipe 12, and a drain water port 2 and the inlet side 8a of the heat exchanger 8 for additional combustion are connected by a return pipe 13. With this arrangement, the installation work is only to install the cleaning nozzle 3 to the bathtub 1 and connect the cleaning nozzle 3 and the drain water port 2 and heat source unit 6 by the outgoing pipe 12 and return pipe 13 so that the installation work is simple, and since the main devices are assembled into the heat source unit 6, the installation and maintenance are simple.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an apparatus for automatically cleaning a bath.

[0002]

2. Description of the Related Art As a device for automatically cleaning the inside of a bath, there is known a system in which a nozzle is attached to an upper portion of a bath or a lid, and a cleaning liquid (water) is sprayed from the nozzle to wash away dirt. There is (JP-A-60-15882)
8, Jitsukai 62-4270, 62-4271, 62
-4174, 63-71869, and JP-A-2-5785.
7).

Further, a cleaning device in which a cleaning liquid is circulated and used is also known (Actually No. 62-4272, 6).
2-4273, 62-69977).

[0004]

However, the above-mentioned known bath cleaning apparatus has the following drawbacks.

A. To install the cleaning device in the bathtub, equipment such as piping is required, which makes construction difficult and large-scale.

B. Since it is almost impossible to attach it to an existing bathtub, only new ones are expected to be put into practical use.

C. The type of bathtub to which the cleaning device can be attached is limited.

D. Replacement work when replacing the bathtub becomes a major task.

E. The initial cost and the construction cost of the cleaning equipment are high.

An object of the present invention is to provide an automatic bathtub cleaning apparatus which does not have the above-mentioned disadvantages a to e.

[0011]

The constitution of the present invention is as follows.

A swinging type washing nozzle is attached to the side wall of the bathtub, a lid sensor for detecting whether or not the lid of the bathtub is properly closed is attached to the edge of the bathtub or the lid side, and heat for hot water supply is provided in the heat source unit. Built-in exchanger, heat exchanger for reheating, cleaning agent tank, circulation pump for reheating, controller, connecting the washing nozzle and the outlet side of the reheating heat exchanger with the outflow pipe, and the drain port of the bathtub Connect the inlet side of the reheating heat exchanger with a return pipe and connect the drain pipe to the return pipe downstream side of the circulation pump.The outlet side of the hot water heat exchanger and the reheating heat exchanger Connect the inlet side with a connecting pipe with a valve, connect the detergent tank and the forward pipe with a detergent supply pipe,
The controller performs the following controls: a. Drive the circulation pump to drain the hot water in the bathtub through the drain pipe. B. Stop the circulation pump, supply heat exchanger for hot water supply → connecting pipe → heat exchanger for reheating → outgoing pipe → supply a small amount of water or hot water to the bottom of the bathtub through the cleaning nozzle, and then wash from the cleaning agent tank The cleaning agent is introduced into the bathtub via the agent supply pipe → the outflow pipe → the cleaning nozzle, c. Drive circulation pump to bathtub → return pipe → circulation pump →
Heat exchanger for reheating → Outward pipe → Washing nozzle and washing water are circulated to wash the bath for a certain period of time, d. Next, drive the circulation pump to drain the wash water in the bathtub through the drain port → the return pipe → the circulation pump → the drain pipe. E. Next, heat exchanger for hot water supply → connecting pipe → heat exchanger for reheating →
Outgoing pipe → Wash the inside of the bathtub while supplying water or hot water via the washing nozzle and wash the bottom of the bathtub for a certain period of time, and at the same time, drive the circulation pump to drain the drain → return pipe → circulation pump → drain pipe. Drainage via f. The above a to e controls are performed only when a signal indicating that the lid is properly closed is input from the lid sensor.

After draining the controller, hot water is supplied from the washing nozzle into the bathtub through the hot water supply heat exchanger → the connecting pipe → the reheating heat exchanger → the outgoing pipe to fill the water with a predetermined amount. A control function for stopping the filling of water at the water level may be added.

Next, the controller may optionally or automatically be provided with a function of controlling the reheating by driving the reheating heat exchanger and the drive pump.

[0015]

[Operation] When the operation switch is turned on and the signal is output from the lid sensor, the next operation is performed.

A. The circulation pump is driven to drain the hot water in the bathtub through the drain pipe.

B. Stop circulation pump, heat exchanger for hot water supply →
Connecting pipe → Heat exchanger for reheating → Outlet pipe → A small amount of water or hot water is supplied to the bottom of the bathtub via the cleaning nozzle, and then from the cleaning agent tank to the cleaning agent supply pipe → Outgoing tube → Cleaning nozzle Then, the cleaning agent is put into the bath.

C. Drive circulation pump to bathtub → Return pipe →
Circulation pump → heat exchanger for reheating → forward pipe → wash nozzle and wash water are circulated to wash the bath for a certain period of time.

D. Next, drive the circulation pump to drain the wash water in the bathtub through the drain port → return pipe → circulation pump → drain pipe.

E. Next, heat exchanger for hot water supply → connecting pipe → heat exchanger for reheating → forward pipe → washing water inside the bathtub while supplying water or hot water via the cleaning nozzle and washing the bottom surface of the bathtub for a certain period of time, Drive the circulation pump to drain water through the drain port → return pipe → circulation pump → drain pipe.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 is a bathtub, 2 is a drain port, 3 is a swinging type cleaning nozzle (nozzle unit) attached to the side surface of the bathtub, 4 is a lid, 5 is a lid 4 set correctly on the bathtub 1. It is a lid sensor that outputs a signal when it is being operated.

The heat source unit 6 is a heat source unit 6.
A hot water supply heat exchanger 7, a reheating heat exchanger 8, a cleaning agent tank 9, a reheating circulation pump 10, and a controller 11 are incorporated therein. In addition, the outlet side of the cleaning nozzle 3 and the reheating heat exchanger 8 are connected by a forward pipe 12, and the drain port 2 of the bath 1 and the inlet side of the reheating heat exchanger 8 are connected by a return pipe 13. There is. A drain pipe 14 is connected to the return pipe 13 on the downstream side of the circulation pump 10. 13 'indicates a tank.

Reference numeral 15 is a connecting pipe connecting the outlet side 7b of the hot water supply heat exchanger 7 and the inlet side 8a of the reheating heat exchanger 8;
6 is a valve.

Reference numeral 17 is a cleaning agent supply pipe connecting the cleaning agent tank 9 and the outflow tube 12, and 18 is a valve. In the figure, reference numeral 7a is the inlet side of the hot water supply heat exchanger 7, and 8b is the reheating heat exchanger 8
Shows the exit side of.

The controller 11 is operated by the controller 11 as follows.

A. Circulation pump 10
Drives the hot water in the bathtub 1 to the circulating pump 10 → drain pipe 14
Drain through.

B. Stop circulation pump 10, heat exchanger 7 for hot water supply → connecting pipe 15 → heat exchanger 8 for reheating → forward pipe 12 →
A small amount of water or hot water is supplied to the inner bottom portion of the bathtub 1 through the cleaning nozzle 3, and then the cleaning agent supply pipe 17 from the cleaning agent tank 9 →
A cleaning agent is introduced into the bathtub 1 via the outflow pipe 12 and the cleaning nozzle 3.

C. The circulation pump 10 is driven to circulate the bath 1 → return pipe 13 → circulation pump 10 → heater 8 for additional heating → outgoing pipe 12 → cleaning nozzle 3 and cleaning water to stop cleaning the bath 1 for a certain period of time. ..

D. Next, the circulation pump 10 is driven to drive the bathtub 1.
The washing water inside is drained 2 → Return pipe 13 → Circulation pump 10 →
Drain through the drain pipe 14.

E. Next, hot water supply heat exchanger 7 → connecting pipe 15 → reheating heat exchanger 8 → outflow pipe 12 → washing water inside the bathtub 1 while supplying water or hot water via the washing nozzle 3 and washing the inner bottom surface of the bathtub 1 Circulation pump 1
Drive 0 to drain 2 → return pipe 13 → circulation pump 10 →
Drainage is performed via the drain pipe 14. This state is shown in FIG.

F. The control of a to e is performed only when the lid sensor 5 outputs a signal indicating that the lid 4 is properly closed.

G. For reheating, drain port 2 → return pipe 13 →
Circulation pump 10-> reheating heat exchanger 8-> forward pipe 12->
The cleaning nozzle 3 is performed in the bathtub 1.

[0033]

The present invention has the above-described structure and operation, and has the following effects.

A. The heat source unit 6 is installed outside the bathroom, the cleaning nozzle 3 is attached to the bathtub 1, the cleaning nozzle 3 and the heat source unit 6 are connected by the outflow pipe 12, and the drain port and the heat source unit 6 are connected by the return pipe 13. The cleaning device can be installed by itself.

As a result, the construction is very easy, and even in the case of the existing bathtub, the automatic cleaning device can be easily attached by just moving the bathtub slightly.

B. Since the main device is built in the heat source unit, installation or maintenance is easy.

C. Construction costs are low because piping is not required, and the initial cost is low because the structure of the device itself is simple.

[Brief description of drawings]

FIG. 1 is a perspective view of a cleaning device according to the present invention attached to a bath.

FIG. 2 is an explanatory view of cleaning the bottom surface of the bathtub.

[Explanation of symbols]

 1 Bathtub 2 Drainage Port 3 Cleaning Nozzle 4 Lid 5 Lid Sensor 6 Heat Source Unit 7 Heat Exchanger for Hot Water Supply 8 Heat Exchanger for Reheating 9 Cleaning Agent Tank 10 Circulation Pump 12 Return Pipe 13 Return Pipe 14 Drainage Pipe

Claims (3)

[Claims] 1. A swing nozzle for cleaning is attached to a side wall of a bathtub, a lid sensor for detecting whether or not a lid of a bathtub is properly closed is attached to an edge of the bathtub or a lid side, and hot water is provided in a heat source unit. Built-in heat exchanger, reheating heat exchanger, cleaning agent tank, reheating circulation pump, controller, connect the washing nozzle and the reheating heat exchanger outlet side with the outflow pipe, and drain the bathtub. Connect the inlet and the inlet side of the reheating heat exchanger with a return pipe, and connect the drain pipe to the return pipe downstream of the circulation pump.The outlet side of the hot water heat exchanger and the reheating heat exchange The inlet side of the container is connected by a connecting pipe with a valve, the cleaning agent tank and the forward pipe are connected by a cleaning agent supply pipe, and the controller performs the following control: a. Drive the circulation pump to drain the hot water in the bathtub through the drain pipe, b. Stop the circulation pump, supply heat exchanger for hot water supply → connecting pipe → heat exchanger for reheating → outgoing pipe → supply a small amount of water or hot water to the bottom of the bathtub through the cleaning nozzle, and then wash from the cleaning agent tank Injecting the cleaning agent into the bathtub via the agent supply pipe → the outflow pipe → the cleaning nozzle, c. Drive circulation pump to bathtub → return pipe → circulation pump →
Heat exchanger for reboiler → outgoing pipe → cleaning nozzle and cleaning water are circulated to clean the inside of the bath for a certain period of time, d. Next, drive the circulation pump to drain the wash water in the bathtub through the drain port → return pipe → circulation pump → drain pipe. E. Next, heat exchanger for hot water supply → connecting pipe → heat exchanger for reheating →
Outgoing pipe → Washing the inside of the bathtub while supplying water or hot water via the washing nozzle and washing the bottom of the bathtub for a certain period of time, and at the same time, drive the circulation pump to drain the drain → return pipe → circulation pump → drain pipe. Drain water via f. The above a to e controls are performed only when a signal indicating that the lid is properly closed is input from the lid sensor. 2. The controller, after finishing draining, performs hot water filling from the washing nozzle into the bathtub via the hot water supply heat exchanger → the reheating heat exchanger → the outflow pipe to reach a predetermined water level. By the way, the automatic bathtub cleaning device according to claim 1, further comprising a control function for stopping the filling. 3. The automatic bathtub cleaning apparatus according to claim 1, wherein the controller has a function of controlling the reheating by driving the reheating heat exchanger and the circulation pump arbitrarily or automatically.