JP2584879Y2 - Bathtub cleaning equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub cleaning apparatus for cleaning a bathtub inner wall surface by spraying a cleaning liquid from a cleaning nozzle onto the bathtub inner wall surface.

[0002]

2. Description of the Related Art A bath is conducted by pumping a detergent to a cleaning nozzle, sprays the cleaning nozzle onto the inner wall surface of the bathtub to remove dirt, and then sprays water from the water spray nozzle onto the inner wall surface of the bathtub for rinsing. The cleaning device is, for example, a Japanese Utility Model Application Laid-Open No.
No. 869. However, in this apparatus, the detergent sprayed from the washing nozzle is not used repeatedly, and is discharged from the drain hole of the bathtub together with the next sprayed water.

[0003] In order to eliminate such waste of detergent, the inventor of the present invention re-used cleaning liquid (mixture of detergent and water or hot water) sprayed from the cleaning nozzle onto the inner wall surface of the bathtub via the circulation pipe. To circulate and spray from the washing nozzle to the inner wall surface of the bathtub to propose a bathtub cleaning device that uses no detergent. When the proposed device is put to practical use, generally, a reheating circuit is provided in the bathtub, so it is preferable that the recirculation line of the cleaning liquid also be used as the reheating circuit, and the present inventors pay attention to this. An apparatus has already been developed for cleaning the bathtub and for reheating the bath water by using a circulation line that combines the reheating cycle and the cleaning cycle.

[0004]

However, when a bathtub cleaning device having such a circulation line is installed in a bathroom of each household, a detergent tank for putting in a detergent, a detergent line for circulating a detergent from a detergent tank, etc. It is necessary to provide a cleaning liquid supply device for supplying the cleaning liquid into the tubing. Further, on the outgoing side of the circulation pipe, the pipe is branched into a pipe leading to the discharge port of the reheating hot water of the bathtub and a pipe leading to the cleaning nozzle. Since it is necessary, there is a problem that the bathroom is messed up by arranging these devices and pipes, and the use space of the bathroom is narrowed.

[0005] The present invention has been made to solve the above-mentioned problems, and its purpose is to collectively use devices such as detergent tanks and pipes so that they can be effectively used without almost narrowing the space in a bathroom. It is an object of the present invention to provide a bath tub cleaning device that can perform the cleaning.

[0006]

The present invention is configured as follows to achieve the above object. In other words, the
The bathtub cleaning device according to the first aspect of the present invention includes a reheating cycle of bathtub water,
A circulation pipe is provided which incorporates a circulation pump, which also serves as a circulation of the cleaning liquid that guides the cleaning liquid jetted from the cleaning nozzle to the inner wall surface of the bathtub to the cleaning nozzle, and a detergent tank containing a bathtub cleaning detergent, and a detergent in the detergent tank. Integrates a detergent introduction device to be introduced into the circulation pipeline, and a branching portion that branches into a pipeline that guides a forward side of the circulation pipeline to a discharge port of a hot water bath and a pipeline that guides a cleaning liquid to a cleaning nozzle. and the unit, the unit is configured as characterized by being installed in a corner of the washing area in proximity to the bath tank, and the second
The invented bath tub cleaning device is designed to recirculate bath water,
Cleaning liquid sprayed from the cleaning nozzle onto the inner wall of the bathtub
Circulation pump built-in
A detergent tank provided with an annular conduit and containing a bathtub detergent
And the detergent in the detergent tank is introduced into the circulation pipe.
Detergent feeding device and the hot water
A conduit leading to the bathtub outlet and a conduit leading the cleaning liquid to the cleaning nozzle
And a branching unit that branches to
The unit consists of the back of the bathtub,
It is installed either outside the room and is used as a drain for the bathtub.
Is equipped with an automatic drain valve.
That the drive source is
It is configured as a feature. In addition, the third invented bathtub
The cleaning device is equipped with a recirculating bath water and a cleaning nozzle.
Cleaning liquid that guides the cleaning liquid sprayed on the inner wall of the bathtub to the cleaning nozzle
A circulation line built in with a circulation pump that also serves as circulation
And a detergent tank containing a bathtub detergent.
Detergent injection to put detergent in the detergent tank into the circulation pipe
The device and the outflow side of the circulation line
Divides into a conduit for guiding and a conduit for guiding the cleaning liquid to the cleaning nozzle
The branching section is integrated into a unit, and this unit
In proximity to the vessel is installed in a corner of the washing area, characterized in that the drainage device of the tub is provided an automatic drain valve, the driving source of the automatic drain valve and detergent system are constituted by the negative pressure pump Is configured as In addition, the fourth
The bath tub cleaning device of the invention is the first or second or third tub cleaning device.
Is configured with the configuration of the invention of the tub washing device, that is the drainage device of bathtubs and return passage往通path and return pipe往管the circulation line is connected is connected is formed as a feature
In addition, the bathtub cleaning device of the fifth invention is described above.
A configuration of the first invention of the tub cleaning device, as characterized by remote control device for controlling one or both of reheating and tub cleaning the outer wall surface of the unit is provided with
And a bath tub cleaning device according to the sixth invention.
The device is any one of the first to fifth devices.
A configuration of a bathtub cleaning device, the outer wall surface of the unit are that a characteristic structure of the detergent supply unit for supplying a detergent into the detergent tank.

[0007]

In the present invention having the above-described structure, the cleaning liquid jetted from the cleaning nozzle to the inner wall surface of the bathtub is again guided to the cleaning liquid through the circulation pipe and circulated and jetted to the inner wall surface of the bathtub to remove dirt on the inner wall surface of the bathtub. The device of the present invention comprises a detergent tank,
A detergent charging device and a branching portion that branches the circulation conduit into a bathtub discharge port and a cleaning nozzle are collectively formed as a unit, and this unit is installed in a dead space such as a backrest side of the bathtub, thereby obstructing the operation. The space in the bathroom can be widely and effectively used without becoming a problem.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a system configuration of a bathtub cleaning apparatus according to a first embodiment of the present invention. In FIG. 1, a bath (bathroom) 1 is provided with a bathtub 2, a side wall of the bathtub 2 is provided with a detergent supply port 3 and a reheating discharge port 4, and a drainage port is provided on the bottom side of the bathtub 2. A device 5 is provided.

As shown in FIG. 3, the drainage device 5 has a mouthpiece 7 attached to a drainage hole 6 at the bottom of the bathtub, and a drainage passage 8 and a return passage 10 are formed in the mouthpiece 7. On one side, a cover frame 11 is attached, one end of a bellows 12 is fixed to the inner surface of the top wall of the cover frame 11, a valve body 13 is attached to the other end of the bellows 12, and the vacuum chamber 14 is evacuated. The valve body 13 is lifted up by the negative pressure of the negative pressure working chamber 14 through the passage 15 and communicates with the vacuum pump, and as shown in FIG.
And a negative pressure type automatic drain valve that closes the valve hole 17 by pressing the valve body 13 downward with the elastic restoring force of the bellows 12 by releasing the negative pressure of the negative pressure working chamber 14. In the drawing, reference numeral 18 denotes a filter frame, and this filter frame 18 has a plurality of pins.
20 is projected downward, and the lower end of the pin 20 is a bellows.
The filter 21 attached to the filter frame 18 covers the flow hole 22 provided in the cover frame 11 in a state where the filter 21 is locked to the valve 13 through the outside of the valve frame 12 and the valve hole 17 is closed. Remove the dirt of the hot water flowing from the bathtub into the return passage 10 and lift the filter frame 18 up in conjunction with the valve body 13 with the valve hole 17 opened, and drain the hot water to drain without passing through the filter 21. The water is drained from the passage 8.

A return pipe 24 of a circulation line 23 is connected to the return passage 10, and this return pipe is connected to a suction side of a circulation pump 27 via a return pipe control valve 25 and a flowing water sensor 26.
A water level sensor (pressure gauge) for detecting the water level of the bathtub hot water is provided between the bathtub 2 and the return pipe control valve 25.
28 are provided.

An outlet pipe 30 of the circulation pipe 23 is connected to the discharge side of the circulation pump 27, and the outlet pipe 30 is guided to the unit 32 via a heat exchanger 31 for heating the circulating hot water and the cleaning liquid. ing. Further, the outgoing pipe 30 is provided with an outlet temperature sensor 34 such as a thermistor for detecting the temperature of hot water or cleaning liquid on the outlet side of the heat exchanger 31.

A water supply pipe 35 is connected between the return pipe control valve 25 of the return pipe 24 and the flowing water sensor 26.
The inlet side of 35 is connected to a water supply source such as tap water via a water supply control valve 36 and a flow rate sensor 37, or is connected to a hot water supply branch pipe 40 of a water heater 38 as shown in the figure. In the drawing, reference numeral 33 denotes an inlet-side temperature sensor such as a thermistor for detecting the temperature of hot water or cleaning liquid entering the heat exchanger 31.

A control device 43 is accommodated in a case 42 of the bathtub in which the heat exchanger 31, the circulation pump 27 and the like are accommodated, and a remote controller 44 is connected to the control device 43.

As shown in FIG. 2, the unit 32 includes a detergent tank 45 for storing a detergent, a vacuum pump (negative pressure pump) 46, a solenoid valve 47, and a negative pressure control valve constituted by a solenoid valve and the like. 48, 49, 50, detergent input device 51, check valves 52, 53
And are housed. In the unit 32, a branch portion 55 for branching the forward side of the forward pipe 30 into a first branch pipe 54 and a second branch pipe 55 is accommodated. The second branch pipe 55 is drawn out of the case 57 of the unit via a valve 56, and is a reheating discharge control valve.
It is drawn out of the case 57 via 58 and connected to the reheating discharge port 4 provided on the side wall of the bathtub.

The suction port side of the vacuum pump 46 is connected to respective negative pressure control valves 48, 49 and 50 via an electromagnetic valve 47, and the valve chamber of the negative pressure control valve 48 is connected to the upper end side of the detergent tank 45. It is connected to the. The valve chamber of the negative pressure control valve 49 is connected to the negative pressure operating chamber 14 of the negative pressure type automatic drain valve via a vacuum line 15. Further, the negative pressure control valve 50 is paired with the detergent introduction device 51, and controls the detergent introduction operation of the detergent introduction device 51. The detergent introduction device 51 is partitioned into a working chamber 61 and a pump chamber 62 by a diaphragm 60, and the working chamber 61 is provided with the negative pressure control valve.
The inlet side of the pump chamber 62 is connected to the bottom of the detergent tank 45 via a check valve 52, and the outlet side of the pump chamber 62 is connected to a first branch pipe 54 via a check valve 53. It is connected to the.

The upper end of the detergent tank 45 has a detergent supply pipe.
It is connected to the detergent supply port 3 of the bathtub 2 via 63.

A control device 64 is provided in the unit 32, and the operations of the reheating operation and the bathtub cleaning operation are controlled by cooperation of the control device 64, the remote controller 44, and the control device 43 on the bathtub side. I have.

A foldable bathtub lid 65 is attached to the upper end side of the bathtub 2. A cleaning nozzle 66 for spraying a cleaning liquid onto the inner wall surface of the bathtub is provided at a substantially central portion of the bathtub lid 65. The washing nozzle 66 is connected to the outlet of a washing liquid passage 67 formed in the bathtub lid 65, and the inlet of the washing liquid passage 67 is connected to the outlet of the first branch pipe 54 drawn out of the unit 32. Have been.

This embodiment is configured as described above. Next, the operation of cleaning the bathtub and the operation of reheating the bath water will be described with reference to the flow charts of FIGS. When the lid of the bathtub 2 is covered and the cleaning switch is first turned on by the remote controller 44, the drainage operation of the remaining hot water in the bathtub 2 is performed in steps 101 to 104. In step 101, the water level sensor 28 determines whether there is remaining hot water in the bathtub 2. If there is remaining hot water, the automatic drain valve is opened to drain the hot water. The opening operation of this automatic drain valve is a negative pressure control valve.
This is performed by opening the 49 and the solenoid valve 47 and turning on the vacuum pump (negative pressure pump) 46.

When the vacuum pump 46 is started, a negative pressure control valve
Since the pump 49 is open, the vacuum suction of the vacuum pump 46 causes the negative pressure working chamber 14 of the drainage device 5 to be under negative pressure, and the valve body 13 is pulled upward to open the valve hole 17. The valve is opened as shown in FIG.
Also, the remaining hot water in the bathtub 2 does not pass through the filter 21 but passes through the circulation hole 22 to enter the drain passage 8 and is discharged to the outside. At this time, a decrease in the remaining hot water is detected by the water level sensor 28, and it is determined that the inside of the bathtub 2 is empty when the water level becomes zero. With the bathtub 2 empty, the cleaning nozzle control valve 56 is opened, and then the water supply control valve 36 is opened, so that the water (or hot water) supplied through the water supply pipe 35 flows through the circulation pipe 23. tube
30 and further through the first branch pipe 54 to the cleaning nozzle 66
The washing nozzle 66 sprays water onto the inner wall surface of the bathtub, thereby washing the inner wall surface of the bathtub with water, washing away large debris such as hair attached to the inner wall surface of the bathtub, and draining the water. It is discharged out of 8.

[0021] When the amount of water injection of water from the washing nozzle 66 becomes Q _1, it is determined that the washing in step 107 is completed, the stopping of the vacuum pump 46 at step 108, the negative pressure control valve 49 The automatic drain valve is closed by the closing operation of the solenoid valve 47. This detects the amount of water automatic drain valve is supplied to the bathtub 2 at a flow rate sensor 37 as a starting point when closed, when the water becomes Q _2, it determines that produces the optimal amount of water to make a washing liquid Then (step 109), the water supply control valve 36 is closed.

Next, in step 111, the return pipe control valve 25 is opened, and the circulation pump 27 is activated, whereby the bathtub 2 is opened.
The water stored on the bottom surface side of the tub is guided to the washing nozzle 66 through the circulation pipe 23 communicating with the first branch pipe 54 side, and is circulated and sprayed from the washing nozzle 66 into the bathtub. In this state of circulating water, the circulating water is heated to an optimum temperature for washing, for example, 60 ° C. by heating the heat exchanger 31. When the temperature detected by the outlet temperature sensor 34 indicates the optimum temperature for this cleaning, the detergent charging operation is performed from steps 114 to 116.

That is, the negative pressure control valve 50 and the solenoid valve 47 are opened, and the vacuum pump 46 is started. When the vacuum pump is activated, the working chamber 61 of the detergent introduction device 51 is negatively pressurized, and the diaphragm 60 is drawn toward the working chamber 61. As a result, the pump chamber 62 is negatively pressed, and the detergent in the detergent tank 45 is non-returned. It enters the pump chamber 62 through the valve 52. When a predetermined time T has elapsed after the vacuum pump 46 has been turned on, it is determined that the required amount of detergent for producing the cleaning liquid has entered the pump chamber 62. In step 116, the vacuum pump 46 is stopped and the negative pressure control valve is turned off.
The closing operation of 50 and the closing operation of the solenoid valve 47 are performed.

The closing operation of the negative pressure control valve 50 causes the negative pressure control valve
Since the vacuum in the valve chamber in 50 is broken and the pressure in the working chamber 61 of the detergent injection device 51 becomes atmospheric pressure, the diaphragm
The spring 60 returns to the original position by the elastic restoring force of the spring 68, compresses the pump chamber 62, and discharges the detergent in the pump chamber 62 into the first branch pipe 54 through the check valve 53. And this first
The detergent discharged to the branch pipe 54 is circulated and sprayed from the cleaning nozzle 66 to the inner wall surface of the bath tub together with the hot and cold water passing through the first branch pipe 54 to mix the cleaning liquid and the hot water, thereby producing a cleaning liquid having a predetermined concentration. The cleaning liquid is heated when passing through the heat exchanger 31 and is circulated and sprayed from the cleaning nozzle 66 toward the inner wall surface of the bathtub. As a result, the dirt on the inner wall surface of the bathtub is chemically washed by the detergent and the impingement force of the cleaning liquid. Cleanly dropped. Since the circulating injection of the cleaning liquid is performed with the automatic drain valve closed as shown in FIG. 3A, the cleaning liquid circulates through the filter 21. When a predetermined cleaning time by the circulation injection of the cleaning liquid has elapsed, the circulation pump 27 is stopped in step 118, and then the automatic drain valve is opened in step 119, and the dirty cleaning liquid accumulated on the bottom side of the bathtub 2 is removed. Drainage passage 8
Is discharged outside through

Next, in step 120, the return pipe control valve 25 is closed, and in step 121, the water supply control valve 36 is opened, so that water supplied through the water supply pipe 35 is supplied to the pipe on the outgoing pipe 30 side. The water is sprayed onto the inner wall surface of the bathtub from the washing nozzle 66 while washing, and the rinsing in the pipeline on the outgoing pipe 30 side and the rinsing of the inner wall surface of the bathtub are performed. The amount of water for this rinsing is detected by the flow sensor 37,
When the amount of water reaches a predetermined amount required for rinsing, the return pipe control valve 25 is opened and the cleaning nozzle control valve 56 is closed.

Then, the water supplied through the water supply pipe 35 enters the bathtub once through the return passage 10 of the drainage device 5 while washing the conduit on the return pipe 24 side, and then drains out through the drainage passage 8. Then, the rinsing in the pipeline on the return pipe 24 side is performed. Then, when the amount of water necessary for rinsing is supplied by the detection signal of the flow sensor 37, the reheating discharge control valve 58 is opened in step 125, the return pipe control valve 25 is closed, and the water supply control valve 36 is closed. To end the line rinsing on the return pipe 24 side. Then, in step 126, it is confirmed that the time required for draining the rinsing water from the bathtub 2 has elapsed, and in step 127, the automatic drain valve is closed to complete the bathtub cleaning operation. The hot water filling operation is performed up to step 131.

First, when the water supply control valve 36 is opened in step 128, the water supplied from the water supply or the water produced on the water heater 38 side is supplied through the water supply pipe 35, and the water supply pipe 35 is supplied.
The hot and cold water supplied from the tank passes through the outgoing pipe 30 and then into the second branch pipe.
It is supplied into the bathtub 2 from the reheating discharge port 4 of the bathtub 2 through 55. In step 129, the heat exchanger 31 is controlled to be heated to the set temperature of the hot water and the hot water dropped into the bathtub 2 through the heat exchanger 31 is heated. The water level of the hot water dropped into the bathtub 2 is detected by a water level sensor 28, and
At 130, it is determined whether or not the bath water level has reached the set water level. When the water level reaches the set water level, the water supply control valve 36 is closed, the burner combustion of the heat exchanger 31 is stopped, and the filling operation is stopped.

Next, the return pipe control valve 25 is opened, and the circulation pump is opened.
Activate 27 and circulate the bathtub hot water through the circulation pipe line 23 leading to the second branch pipe 55 to stir the bathtub hot water, and detect the temperature of the circulating bathtub hot water with the inlet-side temperature sensor 33. At 134, it is determined whether or not the temperature of the bath water is below the set temperature. When the temperature of the bath water is equal to or lower than the set temperature, the reheating operation is performed in steps 135 to 138.

First, in step 135, the burner combustion of the heat exchanger 31 is started, and the temperature of the bathtub hot water circulating through the circulation line 23 is continuously detected by the inlet side temperature sensor 33. When the temperature of the bath tub reaches the set temperature, the reheating combustion of the heat exchanger 31 is stopped, and the recirculation pump 27 is stopped at step 138 to reheat. End the operation.

According to this embodiment, the detergent tank 45, the detergent charging device 51, the check valves 52 and 53, the automatic drain valve and the solenoid valve 47 for controlling the operation of the detergent charging device 51 and the negative pressure control valve.
48, 49, 50, a vacuum pump 46 as a drive source of an automatic drain valve and a detergent charging device 51, a cleaning nozzle control valve 56, a reheating discharge control valve 58, and a branch 55 of a forward pipe line; The control device 64 and the control device 64 are integrated and housed in the case 57 to be compactly formed as a unit. Since the unit 32 is installed on the backrest side of the bathtub 2 which is a dead space, the unit 32 is installed in the bathroom (bathroom). The rooms are organized clearly, and the bathroom space can be effectively used without narrowing the bathroom.

Further, since the branch portion 55 on the outward side of the circulation pipeline 23 is housed in the unit 32, the pipes can be collected without clutter without clutter. Moreover, since the unit 32 is installed on the backrest side of the bathtub 2, the piping distance between the unit 32 and the bathtub 2 is shortened, so that the piping work of the pipeline is facilitated and the work efficiency can be improved. .

Since both the automatic drain valve and the detergent injection device 51 are driven by the vacuum pump 46 as a drive source, both can be driven by a single drive source, so that the structure of the device can be simplified and the vacuum pump 46 can be driven. Efficiency can be increased.

Further, since the return pipe 24 of the circulation pipe 23 is connected to the return passage 10 of the drainage device 5, it is necessary to newly provide a connection hole for connecting the return pipe 24 to the wall surface of the bathtub 2. This becomes unnecessary, and the piping work of the circulation pipeline 23 becomes easy.

FIG. 6 shows a second embodiment of the present invention. The difference between this embodiment and the first embodiment is that
In addition to the return pipe 24 of the circulation pipe 23, the outgoing pipe
30 is connected to the second branch pipe 55,
Other configurations are the same as those of the first embodiment. FIG.
5 shows details of the drainage device 5 of this embodiment, in which a return passage 10 and a forward passage 70 are provided in the mouthpiece 7, and the return passage 10 is provided with a circulation line 23 as in the first embodiment. The return pipe 24 is connected, and the outlet side of the second branch pipe 55 is connected to the outward passage 70, thereby forming a circulation line for the additional hot water.

As described above, by forming both the return passage 10 and the outward passage 70 in the mouthpiece 7, the work of providing a connection hole between the return pipe 24 and the second branch pipe 55 on the bathtub wall surface can be omitted, and the circulation can be omitted. The piping work of the conduit 23 can be made easier than in the first embodiment. 7A shows a state in which the drain passage 8 is closed, and FIG. 7B shows a state in which the drain passage 8 is opened.

FIG. 8 shows a third embodiment of the present invention. In this embodiment, the unit 32 is installed outside the bathroom 1, and the unit 32 is provided through a pipe hole 72 provided in an outer wall 71 of the bathroom 1.
In this example, the piping between the bathtub 32 and the bathtub 2 is constructed, and the other configuration is the same as that of the first embodiment.

As described above, by installing the unit 32 outside the bathroom, the unit 32 can be utilized by using the piping hole 72 of the outer wall 71.
And the bathtub 2 side close to each other to shorten the length of the piping,
Can be carried out using the dead space of the present invention, so that the piping of the piping is not routed inside the bathroom 1, which is advantageous, and the space in the bathroom 1 can be more effectively utilized.

FIG. 9 shows a fourth embodiment of the present invention. In this embodiment, the unit 32 is installed in a storage unit 73 such as a shelf with a mirror in the bathroom, and furthermore, the unit 32
Detergent supply port 3 on the outer wall of case 42 as a detergent supply section
The other configuration is the same as that of the first embodiment.

Also in the case of this embodiment, the space in the bathroom 1 can be widely utilized by installing the unit 32 in the storage section 73 which does not interfere.

FIG. 10 shows a fifth embodiment of the present invention. In this embodiment, the unit 32 is installed adjacent to the bathtub 2 at the corner of the washing room 74, and furthermore, a remote controller 44 is provided on the upper surface of the outer wall of the case 42 of the unit 32. This is the same as the embodiment. Also in this embodiment, by providing the unit 32 at the corner of the washing place, it is possible to effectively use the dead space of the bathroom 1, and since the unit 32 is disposed adjacent to the bathtub 2, The distance of the piping from the bathtub 2 is shortened, and the piping work is facilitated, and the efficiency of the piping work can be improved.

Further, since the remote controller 44 is provided on the upper surface of the outer wall of the unit 32, the remote controller operation during the operation of the cleaning device and the reheating operation becomes very easy, and the operability is excellent.

It should be noted that the present invention is not limited to the above embodiments, but can take various embodiments. For example, in the first to third embodiments, the detergent supply port 3 as the detergent supply section is provided on the side wall of the bathtub 2, but this is provided in the fourth and fifth embodiments.
In the same manner as in the first embodiment, the detergent supply port 3 in the fourth and fifth embodiments may be provided in the bathtub as in the first to third embodiments. 2
May be provided on the side wall.

In each of the above embodiments, the automatic drainage valve is constituted by a negative pressure drive type (vacuum pump drive type) valve.
Other than that, for example, a remote control valve using a wire, an automatic drain valve having another configuration such as a solenoid valve, or the like can be used.

Further, in each of the above embodiments, the control device 43 is provided on the bath kettle side and the control device 64 is provided on the unit 32 side. However, these may be integrated into any one of the control devices. Further, the control device 64 housed in the unit 32 may be provided separately from the unit 32.

Further, the heat exchanger 31 may be of a gas combustion type, of an oil combustion type, or of an electric water heater.

[0046]

According to the present invention, a detergent tank, a detergent introduction device, and a branch portion of a conduit leading to a bathtub discharge port on the outward side of a circulation conduit and a branch leading to a cleaning nozzle are integrated. Since this unit is configured to be provided on the backrest side of the bathtub that does not disturb, in the storage section in the bathroom, outside the bathroom, at the corner of the washing room, etc., the space in the bathroom is almost not narrowed, The excellent bathtub cleaning apparatus of the present invention can be installed even in a small bathroom.

Also, since a branching portion between the conduit leading to the bathtub discharge port on the outward side of the circulation conduit and the conduit leading to the washing nozzle is housed in the unit, the piping around the bathroom is neatly organized. And the piping work becomes easy, and the work efficiency can be improved.

Further, in a configuration in which the unit is installed in the corner of the washing place close to the bathtub and a remote control is provided in this unit, remote control operation for washing the bathtub and reheating the bath water is very difficult. It becomes easy and it is easy to use.

Further, in the case where the outflow passage and the return passage of the circulation pipe are formed in the drainage device of the bathtub, the outflow passage of the drainage device can be formed without making a hole for connecting the circulation pipe in the side wall of the bathtub. It is only necessary to connect the pipes to the return passage and the return passage, so that the piping work of the circulation pipe becomes very easy.

Further, in a configuration in which the drive source of the automatic drain valve and the detergent input device is a vacuum pump, the drive of the automatic drain valve and the detergent input device can be performed by one vacuum pump. In addition, simplification of the device configuration can be achieved, and the operating efficiency of the vacuum pump can be increased.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram illustrating a first embodiment of a bathtub cleaning apparatus according to the present invention.

FIG. 2 is an explanatory diagram of a configuration inside a unit in the apparatus of the embodiment.

FIG. 3 is an explanatory diagram of a configuration of a drainage device in the embodiment.

FIG. 4 is a flowchart showing an operation in the embodiment.

FIG. 5 is a flowchart continued from FIG. 4;

FIG. 6 is an explanatory view showing a second embodiment of the present invention.

FIG. 7 is an explanatory diagram of a configuration of a drainage device in the embodiment.

FIG. 8 is an explanatory view showing a third embodiment of the present invention.

FIG. 9 is an explanatory view showing a fourth embodiment of the present invention.

FIG. 10 is an explanatory view showing a fifth embodiment of the present invention.

[Explanation of symbols]

 2 Bath tub 3 Detergent supply port 4 Reheating outlet 5 Drainage device 10 Return passage 16 Vacuum pump 23 Circulation line 27 Circulation pump 32 Unit 44 Remote control 45 Detergent tank 46 Vacuum pump 51 Detergent charging device 55 Branch 65 Bath tub lid 66 Cleaning nozzle 70 Outbound Passage

Claims (6)

(57) [Scope of request for utility model registration] 1. A circulation line incorporating a circulation pump is provided, which serves both as recirculation of bathtub water and circulation of a cleaning liquid for guiding a cleaning liquid jetted from a cleaning nozzle to an inner wall surface of the bathtub to the cleaning nozzle. A detergent tank to be accommodated, a detergent introduction device that introduces the detergent in the detergent tank into the circulation pipe, a pipe that guides the forward side of the circulation pipe to the discharge port of the boiling water and the cleaning liquid to the cleaning nozzle. A branching portion that branches into a leading conduit and a branching unit, and this unit is a bathtub cleaning device installed near a bathtub at a corner of a washing place. 2. A recirculation of the bath water and a cleaning nozzle.
Cleaning liquid sprayed on the inner surface of the bathtub through the cleaning nozzle
A circulation line built in with a circulation pump that also serves
And a detergent tank containing a bathtub detergent.
Detergent throwing detergent in the detergent tank into the circulation pipe
An inlet device and a discharge port for the hot tub in pursuit of the forward side of the circulation line
Into a pipeline leading to the cleaning nozzle and a pipeline leading to the cleaning nozzle
And a branching unit are integrated into a unit, and this unit is
The back side of the bathtub, the storage section inside the bathroom, and the outside of the bathroom
Automatic drainage is installed in the drainage device of the bathtub
A valve is provided to drive the automatic drain valve and the detergent
Is a bathtub cleaning device composed of a negative pressure pump . 3. A reheating cycle of bath water and a cleaning nozzle.
Cleaning liquid sprayed on the inner surface of the bathtub through the cleaning nozzle
A circulation line built in with a circulation pump that also serves
And a detergent tank containing a bathtub detergent.
Detergent throwing detergent in the detergent tank into the circulation pipe
An inlet device and a discharge port for the hot tub in pursuit of the forward side of the circulation line
Into a pipeline leading to the cleaning nozzle and a pipeline leading to the cleaning nozzle
And a branching unit are integrated into a unit, and this unit is
Are installed in close proximity to the tub corners of washing area, the automatic drain valve is provided in the drainage device of the tub, the driving source of the automatic drain valve and detergent system bath tank cleaning that is constituted by a negative pressure pump apparatus. 4. A drainage device for a bathtub, wherein an outgoing passage to which an outgoing pipe of a circulation pipeline is connected and a return passage to which a return pipe is connected are formed. Bath tub cleaning equipment. 5. A unit bathtub cleaning apparatus according to claim 1, wherein the remote control is provided of a control device for controlling one or both of reheating and tub cleaning the outer wall surface of the. 6. The bathtub cleaning apparatus according to claim 1, wherein a detergent replenishing portion for replenishing the detergent tank with detergent is provided on an outer wall surface of the unit.