JP2571643Y2 - 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 simple bathtub cleaning apparatus for spraying a cleaning liquid onto a bathtub inner wall surface to remove dirt from the bathtub inner wall surface.

[0002]

2. Description of the Related Art Japanese Utility Model Laid-Open No. 63-71869 and Japanese Utility Model Laid-Open No. 3-23169 are known as devices for automatically cleaning a bathtub. The apparatus disclosed in Japanese Utility Model Application Laid-Open No. 63-71869 is provided with one washing nozzle for spraying detergent and one water spray nozzle for spraying water such as tap water on the lid of the bathtub. The detergent is supplied from the detergent tank to the washing nozzle by a pump, and is sprayed into the bathtub to remove dirt. Thereafter, water is supplied from a water supply source such as tap water to the water spray nozzle and sprayed into the bathtub. Then, the dirt component and the detergent in the bathtub which have been dropped by the detergent are washed away and discharged from the drain hole.

[0003] In the apparatus disclosed in Japanese Utility Model Publication No. 3-23169, a drain pipe is connected from the bottom of a bathtub to a return pipe side of a reheating circuit of a bath kettle via a switching valve, and the recirculation path of the reheating circuit is connected. From the pipe side, similarly, a washing pipe is connected via a switching valve, and this washing pipe is connected to a washing pipe provided on the upper side of the bathtub. When washing the bathtub, the remaining hot water stored in the bathtub 1 is used. The recirculation pump incorporated in the recirculation line is driven to drive the recirculation line from the drain pipe side to the recirculation line, and further to the cleaning pipe through the cleaning pipe side. Mix with the detergent supplied from the charging section, spray the cleaning liquid mixed with the water and the detergent from the cleaning pipe to remove the dirt on the inner wall of the bathtub, and then remove the hot water once stored in the air release tank from the water heater side. Reheating circulation by circulation pump It was introduced into the road, and injected into the bathtub wall led further from the cleaning pipe to the cleaning pipe, and performs rinsing.

[0004]

However, in the apparatus disclosed in Japanese Utility Model Application Laid-Open No. 63-71869, since the detergent is sprayed at room temperature, the chemical cleaning ability of the detergent is weak, and the inside of the bathtub is poor. There is a problem that the dirt on the wall cannot be removed cleanly, and a dedicated pump for supplying detergent to the washing nozzle is required. Therefore, this pump must be installed in the bathroom, and the effective use space of the bathroom is required. There was a problem that was narrowed.

In the apparatus disclosed in Japanese Utility Model Publication No. 3-23169, a drain pipe must be connected to the bottom of the bathtub, and a washing pipe must be provided at the top of the bathtub to be connected to the washing pipe. Is very complicated. In particular, when connecting drainage pipes, the bathtub must be turned upside down, making pipework extremely difficult, and existing bathtubs already installed at home are hardened with tiles etc. There is a problem that it is almost impossible to construct drainage pipes, and it is not possible to easily install and install a bathtub cleaning device.

The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to make it possible to clean the inner wall of a bathtub cleanly and to easily carry out a large-scale plumbing construction work. An object of the present invention is to provide a bathtub cleaning device that can be installed and installed.

[0007]

The present invention is configured as follows to achieve the above object. In other words, the
The invention of 1 is cleaning that sprays a cleaning solution toward the inner wall surface of the bathtub.
A nozzle is provided, and a water passage is connected to the washing nozzle,
This water passage is provided with a flow rate sensor that detects the flow rate of water flow.
And a detergent charging device for charging a detergent into the water passage.
Connected, and depending on the flow rate detected by the flow rate sensor,
It is set by variably controlling the detergent input amount of the detergent input device
Produce a detergent-concentrated cleaning solution as a mixture of water and detergent
It is characterized by having a detergent input variable control means.
It is configured. Further, the second invention is provided with a cleaning nozzle for spraying a cleaning liquid toward the inner wall surface of the bathtub, and a hot water supply pipe provided from a water heater to a faucet portion of the bathtub is branched near the faucet portion. The passage is connected to the washing nozzle, and in the branch passage, there are provided a bathtub cleaning instrument and devices including a hot water supply valve for opening and closing the passage, and a detergent charging device for charging the detergent in the detergent tank into the branch passage. Provided
Water flow from the water heater to the washing nozzle
A flow sensor for detecting the amount is provided.
Variable detergent input amount of the detergent input device according to the detected flow rate
The cleaning liquid with the detergent concentration set by control is
There is provided a variable control means for the amount of detergent to be created as a liquid mixture.
It is characterized by having. In addition, the third
The idea was to use a cleaning nozzle that sprays a cleaning liquid onto the inner surface of the bathtub.
A hot water supply equipped with a whirlpool and piped from the water heater to the faucet of the bathtub
The pipe is branched near the faucet, and the branch passage is
It is connected to the washing nozzle and
The hot water supply valve that opens and closes the road and the detergent in the detergent tank
Bathtub cleaning equipment and equipment, including a detergent charging device
An installation is provided, and a washing nozzle is installed from the water heater side.
A flow sensor to detect the flow rate of water supplied to the
The detergent charging device according to the flow rate detected by the flow sensor.
Of the detergent concentration set by variably controlling the amount of detergent
Detergent can be added as a mixture of clean water and detergent
A change control means is provided, and at least the hot water supply valve, the detergent tank, and the detergent charging device are integrated and unitized . In addition, the fourth
The device of the present invention has the configuration of the first, second or third device.
The cleaning nozzle is provided with a rotary drive source and is rotatably mounted on the side wall of the bathtub. The cleaning nozzle sprays the cleaning liquid in a direction intersecting the rotation axis.
Characterized by having at least two injection holes
It is.

[0008]

In the present invention having the above-described structure, when the bathtub is cleaned, for example, hot water supplied from the water heater is guided to the branch passage, the hot water supply valve is opened, and the hot water is sprayed from the cleaning nozzle onto the inner wall surface of the bathtub. At this time, by introducing the detergent into the branch passage from the detergent introduction device, the washing liquid in which the hot water and the detergent are mixed is jetted from the washing nozzle to the inner wall surface of the bathtub. The cleaning liquid adheres to the inner wall surface of the bathtub every corner by spraying the cleaning liquid for a predetermined time. After the cleaning liquid is sprayed and adhered, the cleaning liquid is left for a predetermined period of time to remove stains on the inner surface of the bathtub by the chemical cleaning power of the cleaning liquid.

Next, the hot water from the water heater is guided from the branch passage to the washing nozzle and jetted onto the inner wall surface of the bathtub with the detergent injection device stopped, so that the washing liquid adhering to the inner wall surface of the bathtub and the washing liquid are dropped by the washing liquid. The contaminated components are washed out and discharged out of the drain hole of the bathtub. In particular, the present invention
In addition, the detergent injection amount variable control means
Irrespective of changes in the flow rate of
A cleaning solution with a chemical concentration is created and the cleaning is performed.
It is possible to sufficiently increase the purification capacity.

[0010]

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 first embodiment of a bathtub cleaning apparatus according to the present invention. In FIG. 1, a gas-fired type, oil-fired type, electric hot-water type or the like, and in this embodiment, a gas-fired type water heater 2 are arranged outside a bathroom 1. A water supply pipe 4 is connected to an inlet of the hot water supply heat exchanger 3 of the hot water supply 2, and a hot water supply pipe 5 is connected to an outlet side of the hot water supply heat exchanger 3. It is connected to a faucet 7 for discharging hot water to a bathtub 6. The water supply pipe 4 is provided with a flow rate sensor 8, and an inlet side of the hot water supply heat exchanger 3 is provided with a water supply temperature sensor 9 for detecting a supply water temperature. Is provided with a tap water temperature sensor 10 for detecting the tap water temperature, and the hot water supply 2 is provided with a flow rate detection signal from the flow rate sensor 8 by a control device 66 for bathtub cleaning or a control device dedicated to a hot water supply device (not shown); The hot water supply heat exchanger 3 receives hot water temperature information added from the hot water temperature sensor 9 and hot water temperature information added from the hot water temperature sensor 10 so that hot water at a set temperature is discharged.
Is controlling the burner combustion.

A hot water supply pipe 5 laid from the water heater 2 to the bathroom 1 is branched at a position near the faucet 7 to form a branch passage.
An outlet of the branch passage 11 is connected to a cleaning nozzle 32 provided on a side wall of the bathtub 6.
The water supply pipe 4, the hot water supply heat exchanger 3, the hot water supply pipe 5, and the branch passage
The passage leading to the washing nozzle 32 via the passage 11 is
Constitute the water channel, the water flow rate in this branch passage 11
Flow rate sensor 12 for detecting and hot water supply valve 13 for opening and closing the passage
And a temperature sensor 14 for detecting the temperature of water passing through the passage. Further, a detergent supply pipe 15 is connected to the branch passage 11, and the detergent supply pipe 15 is connected to a detergent tank 62 via a detergent introduction device 61. This detergent tank 62
Contains a liquid detergent.

A detergent supply pipe 63 is connected to the upper end of the detergent tank 52. The inlet side of the detergent supply pipe 63 is guided to an opening 65 of a decorative plate 64 provided at the upper end side of the bathtub, so that detergent can be supplied to the detergent tank 62 from the opening 65. ing. The flow rate sensor 12, the hot water supply valve 13, the temperature sensor 14, the detergent charging device 61, and the detergent tank 62 are integrated and integrated as a cleaning unit 60, and the cleaning unit 60 is provided between the bathtub 6 and the bathroom wall surface 59. Installed in dead space. As shown in FIG. 3, the cleaning nozzle 32 has a case base 16 composed of a front frame case 17 and a rear frame case 18, and a forward / reverse rotation drive source attached to the rear side of the case base 16 using a mounting bracket 33. It has a rotatable reversible motor 34 and a rear frame case
In 18, an inflow passage 21 and a pipeline connection portion 22 connected to the branch passage 11 are formed.

An injection body 35 is hermetically and rotatably fitted in the front frame case 17 via a packing 20, and an injection chamber 24 is formed inside the injection body 35. A retaining plate 36 having a communication hole 26 is fitted and fixed to the rear end opening surface side of the injection chamber 24 using a screw. A first injection hole 37 and a second injection hole 38 are formed from the peripheral wall of the injection body 35 to the front end wall. First injection hole
Both the base end side of the second injection hole 37 and the second injection hole 38 are open to the injection chamber 24. The outlet of the tip of the first injection hole 37 is directed to the direction in which the cleaning liquid is injected onto the mounting wall surface (bath tub side wall) 30 of the cleaning nozzle 32 and the side and bottom surfaces of the bath tub in the vicinity thereof. The tip outlet is directed in a direction in which the cleaning liquid is sprayed to the entire area of the remaining inner wall surface of the bathtub so as to partially overlap the spray area of the cleaning liquid sprayed from the first spray hole 37. The outlets of the first injection hole 37 and the second injection hole 38 are formed as flat (elongated hole) nozzle openings, so that an injection pattern that spreads in a flat shape (fan shape) can be obtained.

A base end of a rotary shaft 40 is connected to an output shaft of the reversible motor 34, and a distal end of the rotary shaft 40 passes through the rear frame case 18 in a watertight and rotatable manner via packing. Further, it is inserted into the injection chamber 24 through the shaft hole of the retaining plate 36. The rear frame case 18 and the retaining plate 36 are rotatable relative to the rotating shaft 40, and the first arm 41 and the second arm 41 are also rotatable relative to the rotating shaft 40. The base ends of the arms 42 are fitted respectively, and retaining rings 43a to 43d for retaining are fitted on both sides of the first arm 41, the second arm 42 and the retaining plate 36. A support plate 44 is fixed to a tip end surface of the rotating shaft 40 by a set screw 45, and an operation pin 46 is provided on a top side of the support plate 44 so as to protrude horizontally and horizontally.

The first arm 41 is provided with a concave second engaging pin 46 when the rotating shaft 40 is rotated clockwise by a predetermined amount from the home position (neutral position) shown in FIGS. The second arm 42 is provided with a first locking surface 47, and the second arm 42 is provided with a recessed second locking portion to which the operating pin 46 is locked when the rotation shaft 40 is rotated counterclockwise by a predetermined amount from a fixed position. Two locking surfaces 48 are formed. Further, a first valve for opening and closing the inlet side of the first injection hole 37 is provided at the distal end side of the first arm 41.
A second valve 51 is provided at the tip end of the second arm 42 to open and close the inlet side of the second injection hole 38. Spring support shafts 52, 53 are provided on the bottom side of the first arm 41 and the second arm 42 (the right side of the arms 41, 42 in FIG. 4). The first arm 41 is pressed counterclockwise by the elastic restoring force of the first spring 54, and the first valve 50 is
Presses against the valve seat portion of the first injection hole 37,
Is closed. Similarly, the second spring 55 is attached to the spring support shaft 53.
The second arm 42 is pressed clockwise by the elastic restoring force of the second spring 55, and the second valve 51 receives the pressing force, and the second valve 51 is moved to the valve seat of the second injection hole 38. The second injection hole 38 is closed by pressing against the portion. In addition, the injector 35
A first locking step 56 that locks when the first arm 41 rotates clockwise by a predetermined amount from the home position of FIGS. 3 and 4 and a second arm A second locking step 57 is provided for locking when 42 rotates left (counterclockwise) by a predetermined amount from the home position shown in FIGS. 3 and 4.

Opening / closing operation of the hot water supply valve 13 and a detergent injection device
The detergent input operation of 61 and the rotation operation of the reversible motor 34 of the cleaning nozzle 32 are controlled by a control device 66, and a remote control (not shown) is connected to the control device 66,
By pressing a cleaning button provided on the remote controller, the control device 66 controls the bathtub cleaning operation.

As shown in FIG. 2, the control unit 66 includes a signal input unit 67, a command / control unit 68, a timer 69, and a calculation unit 70.
And a memory 71. The signal input unit 67 receives a signal from the remote controller, a temperature detection signal from the temperature sensor 14,
It receives the flow rate detection signals from the flow rate sensor 12 and applies these signals to the command / control unit 68. The command / control unit 68 receives the signal from the signal input unit 67 and the information of the program provided to the memory 71, grasps the progress of the bath tub cleaning operation program, and, if necessary, sets the timer 69 to the timer 69. The operation is instructed, the arithmetic unit 70 is instructed to calculate the amount of water, the amount of detergent to be supplied, and the like. FIG.
As shown in (1), the detergent input device 61 converts the rotation of the motor 72 into forward and backward linear movement of the rod 73, and attaches a conical valve element (detergent input valve) 74 to the distal end side of the rod 73. The passage cross-sectional area of the valve hole 75 is changed by the forward / backward movement of the body 74, and the amount of the detergent supplied from the detergent tank 62 to the branch passage 11 via the detergent supply pipe 15 is variably controlled. As described above, the memory 71 has a built-in program for the bathtub cleaning operation, and stores a calculation result of the calculation unit 70 as necessary.

This embodiment is configured as described above.
Hereinafter, an example of the bathtub cleaning operation will be described based on the flowchart shown in FIG. First, when a drain plug (not shown) of the drain hole 88 of the bathtub 6 is opened, the lid 77 is closed, and then the cleaning button of the remote controller is turned on, the ON signal is instructed via the signal input section 67 of the control device 66 to command and control. Added to part 68. The command / control unit 68 receives the command of the cleaning operation mode, and
At 101, the hot water supply valve 13 is opened. Then, hot water discharged from the water heater 2 through the hot water supply pipe 5 enters the branch passage 11 and is sent to the cleaning nozzle 32 through the hot water supply valve 13.

At this time, in step 102, the cleaning nozzle 32
, For example, is started. This washing nozzle
When the right rotation of the motor 32 is performed, the reversible motor 34 is moved in FIGS.
When you rotate clockwise from the home position,
The operating pin 46 linked to the rotating shaft 40 also rotates rightward, and when rotated by a predetermined amount, the operating pin 46 moves to the first position as shown in FIG.
The first arm 41 is locked to the first locking surface 47 of the first arm 41.
Is rotated rightward against the pressing force of the first spring 54. As a result, the first valve 50 opens the first injection hole 37, and the hot water is injected from the outlet of the first injection hole 37 into the bathtub wall in a flat pattern.

When the rotating shaft 40 further rotates clockwise, as shown in FIG. 6, the first arm 41 is locked on the first locking step 56, and the rotating shaft 40, the first arm 41, and the injector are rotated. 35 and rotate rightward together.

Next, in step 103, the command / control unit 68 determines the temperature S which is sufficient for the hot water passing through the branch passage 11 to exhibit the chemical cleaning power of the detergent, based on the temperature detection signal of the temperature sensor 14.
° C, in this embodiment, it is determined whether the temperature has reached 60 ° C or higher.
At 4, it is determined whether or not the amount of water passing through the branch passage 11 has become equal to or more than a predetermined Q liter / minute. When the temperature of the hot water and the flow rate of the water in the branch passage 11 are both equal to or higher than the set values, the detergent input valve 74 of the detergent input device 61 is opened in step 105.

Then, the detergent in the detergent tank 62 is introduced into the branch passage 11 through the valve hole 75 of the detergent introduction device 61. At this time, at step 106, the detergent is supplied in accordance with the detected flow rate of the flow sensor 12 in the flow rate sensor 12. The opening amount of the injection valve 74 is variably controlled, and the amount of the detergent is variably controlled so as to obtain a cleaning liquid having a predetermined concentration (for example, a concentration of 5%) suitable for removing dirt on the inner wall surface of the bathtub. . Detergent injection according to the detected flow rate
The detergent input amount of the device 61 is variably controlled so as to reach the set concentration.
The components of the control device 66 include a detergent input amount variable control means.
Is what it does. By the introduction of the detergent, the hot water supplied from the water heater 2 side and the detergent are mixed in the branch passage 11, and a cleaning solution having a detergent concentration of the optimal setting for removing dirt on the inner wall surface of the bathtub is produced. The cleaning liquid is sprayed into the bath 6 from the rotating cleaning nozzle 32. The rotation of the injection body 35 causes the first injection hole 37 to perform a circumferential rotational movement, so that the cleaning liquid is evenly attached to the bathtub wall surface.

After the jet body 35 has been rotated clockwise X times (X is an integer of 1 or more) after the detergent is supplied, the reversible motor 34 is rotated in the opposite left direction. When the reverse rotation of the reversible motor 34 is performed, the operation pin 46 rotates to the left, resulting in the first rotation.
The arm 41 follows the elastic restoring force of the first spring 54 and follows the rotational movement of the operating pin 46. When the operating pin 36 has been rotated to the left by a predetermined amount, the first valve 50 is connected to the first spring 54. The first ejection hole 37 is closed by the elastic restoring force of the above, and the ejection of the cleaning liquid from the first ejection hole 37 is stopped.

When the rotating shaft 40 further rotates leftward, the operating pin 46 is locked on the second locking surface 48 of the second arm 42 as shown in FIG. Then, this time, the second arm 42 rotates counterclockwise against the elastic restoring force of the second spring 55, and the second valve 51 opens the second injection hole 38. As a result, the cleaning liquid enters the second injection holes 38 from the injection chamber 24, and the cleaning liquid in a flat pattern is injected obliquely downward from the outlet side as shown in FIG. When the rotating shaft 40 further rotates to the left, as shown in FIG.
The rotation shaft 40, the second arm 42, and the injector 23 are integrally rotated counterclockwise by being locked to the second locking step 57 of the lock member 23. The rotation of the injection body 23 causes the second injection hole 38 to rotate in a circumferential direction, and the cleaning liquid injected from the second injection hole 38 partially overlaps with the area injected by the first injection hole 37. The lap is sprayed over the entire area of the inner wall surface of the bathtub, and the cleaning liquid is applied to all corners of the inner wall surface of the bathtub.

After the leftward injection of the injector 23 has been performed X times, the rotation of the washing nozzle 32 is stopped in step 111, and then in step 112, the hot water supply valve 13 and the detergent supply valve 74 of the detergent supply device 61 are turned on. close. Then, in step 113, a predetermined T at which dirt is effectively removed by the cleaning liquid attached to the inner wall surface of the bathtub.
Leave for a time. That is, the washing nozzle 32 and the hot water supply valve 13
When the detergent input valve 74 is closed, the command / control unit 68
A timer operation for T time is instructed to 69, and a time-up signal from the timer 69 is waited.

When a time-up signal is applied from the timer 69, and the T time has elapsed, at step 114 the hot water supply valve
13 is opened and hot water is sprayed while rotating the cleaning nozzle 32 clockwise X times in the same manner as in step 102 to wash away the cleaning liquid adhering to the inner wall surface of the bathtub and the dirt component dropped by the cleaning liquid. When the rinsing by the right rotation of the washing nozzle 32 is completed, the washing nozzle 32 is rotated X times to the left to rinse the inner wall surface of the bathtub with hot water in the same manner. With cleaning nozzle
The rotation of 32 is stopped, and then in step 120, the hot water supply valve 13 is closed to complete the first bathtub cleaning operation. Then, in step 121, it is determined whether or not the cleaning operation has been performed N times (N is an integer of 1 or more) specified in advance. If the cleaning operation has not been performed N times, the operations of steps 101 to 120 are repeated, and the cleaning operation is performed. When the operation has been performed N times, the bathtub cleaning operation ends.

In this embodiment, since the flow rate sensor 12, the hot water supply valve 13, the temperature sensor 14, the detergent charging device 61 and the detergent tank 62 are integrated and configured as a cleaning unit 60,
The hot water supply pipe 5 is branched from the vicinity of the faucet 7 for dropping hot water, the branch passage 11 of the cleaning unit 60 is connected to this branch, and the outlet side of the branch passage is connected to the cleaning nozzle 32, so that the bathtub cleaning device can be completed. With this configuration, it is possible to construct a cleaning device easily using extremely simple piping work and a hot water heater already installed in the home, and the introduction and installation of the cleaning device becomes very simple. .

Further, since a dedicated pump for sending the detergent or the cleaning liquid to the cleaning nozzle 32 is not required, a place for installing the pump in the bathroom is not required, and the bathtub cleaning apparatus can be provided without narrowing the effective use space in the bathroom. Can be installed.

Moreover, by unitizing the cleaning device as in the present embodiment, the cleaning unit 60 can be arranged utilizing the dead space between the bathroom wall surface 59 and the bathtub 6 as shown in FIG. The effect of being able to install the bath tub cleaning device without hindrance even in a residential environment with a narrow bathroom situation can be obtained.

Further, since the washing nozzle 32 is rotatably provided, one washing nozzle is provided with one or more injection holes in a direction intersecting the rotation axis, so that one washing nozzle can be used in the bathtub. Since the cleaning liquid can be sprayed and attached to every corner of the wall surface, the apparatus configuration can be simplified as compared with the case where a plurality of cleaning nozzles are installed.

FIG. 11 shows a second embodiment of the present invention. In the second embodiment, a cleaning device is incorporated in an automatic bath with a combination of a water heater 2 and a reheating line 78. The reheating line 78 is a return pipe 79,
A circulating pump 80 for circulating hot and cold water in the bathtub 6, a flowing water switch 81 for detecting a circulating water flow, a reheating heat exchanger 82 for heating the circulating water, and circulation of the inlet and outlet of the reheating heat exchanger 82. It comprises temperature sensors 83 and 84 for detecting the temperature of water and an outgoing pipe 85. The hot water supply pipe 5 of the water heater 2 and the additional heating circulation line 78 are communicated via a hot water supply valve 86. By opening the hot water supply valve 86, the hot water supply from the hot water supply 2 side is recirculated. It is dropped into the bath tub 6 through a conduit 78, and hot water is available.

In the second embodiment, as in the first embodiment, the hot water supply pipe 5 is branched near the faucet 7, and a flow sensor 12, a hot water supply valve 13, a temperature sensor 14, and a detergent injection are provided at the branch. The apparatus 61 is connected to the inlet side of the branch passage 11 of the cleaning unit 60 in which the detergent tank 62 is integrated, and the outlet side of the branch passage 11 is connected to the outgoing pipe 85 of the heating line 78, and the outlet side of the outgoing pipe 85. Is connected to the washing nozzle 32, and the flow of the washing liquid or hot water supplied to the washing nozzle 32 from the hot water supply pipe 5 through the branch passage 11 is supplied to the outgoing pipe 85 through the outgoing pipe 85 to reheat the heat exchanger 80. A check valve 87 is provided so as not to flow to the side.

In the second embodiment, the bath tub cleaning operation is performed similarly to the first embodiment, and the same effects as in the first embodiment can be obtained.

FIG. 12 shows a third embodiment of the present invention. The difference between the third embodiment and the first embodiment is that the flow path sensor 12, the hot water supply valve 13, the detergent charging device 61, and the detergent tank 62 are not unitized, and the branch passage 11 branched from the hot water supply pipe 5 is not formed. The cleaning nozzle 32
The other configuration is the same as that of the first embodiment. Also in the third embodiment, a bath tub cleaning device is configured by arranging instruments and devices such as a flow rate sensor 8, a hot water supply valve 13, a detergent charging device 61, and a detergent tank 62 on a branch passage 11 branched from the hot water supply pipe 5. Therefore, as in the first and second embodiments, complicated piping work around the bathtub 6 is not required, and the bathtub cleaning device is installed using an existing water heater installed in the home. Since it can be easily constructed, the same excellent effects as in the above embodiments can be obtained.

It should be noted that the present invention is not limited to the above embodiments, but can take various embodiments. For example, in the above-described embodiment, the cleaning nozzle 32 is provided on the side wall of the bathtub 6, but the cleaning nozzle 32 may be provided at another location such as a lid of the bathtub. Further, in each of the above-described embodiments, the cleaning nozzle 32 is a rotary type and is constituted by one. However, the cleaning nozzle 32 may be a fixed type, and the number may be plural. However,
If the cleaning nozzle 32 is constituted by one cleaning nozzle 32 as in this embodiment, the apparatus configuration can be further simplified.

In each of the above embodiments, the cleaning nozzle 32 is rotated in both the forward and reverse directions. However, the cleaning nozzle 32 may be rotated in one of a clockwise direction and a counterclockwise direction. In this case, the cleaning nozzle 32 is provided with one or more injection holes in a direction intersecting the rotation axis, and the cleaning liquid is simultaneously supplied to each of the injection holes to spray and adhere the cleaning liquid over the corners of the inner wall surface of the bathtub. Will be.

Further, in the first and second embodiments, the cleaning unit 60 is provided in the dead space between the bathtub 6 and the bathroom wall surface 59, but the cleaning unit 60 may be provided in any other place that does not interfere (for example, (Such as a hole in the bathroom wall).

[0038]

[Effect of the Invention] In the present invention, a bath tub cleaning device is constructed by arranging appliances and devices such as a hot water supply valve, a detergent charging device and a detergent tank in a branch passage branched from a hot water supply pipe of a water heater. There is no need to provide drainage pipes on the bottom wall of the bathtub as in the conventional example, or to install a washing pipe on the top of the bathtub, thereby greatly simplifying the piping work and clearing the piping around the bathtub. Can be summarized.
In addition, the existing hot water heater installed in the home can be used as a part of the bathtub cleaning device, and furthermore, there is no need for a dedicated pump for pumping the cleaning liquid,
The excellent bathtub cleaning device of the present invention can be easily installed and installed without significantly reducing the effective use space of the bathroom.

Further, since the cleaning liquid is prepared by using the hot water supplied from the water heater, the temperature of the cleaning liquid can be set to an optimum temperature for exhibiting the chemical cleaning ability of the detergent, and the dirt on the inner wall surface of the bathtub can be removed. It can be removed neatly. In particular,
In the plan, the flow rate of water flowing to the washing nozzle is
Detects and supplies detergent according to the flow rate detected by this flow rate sensor.
Variably controls the amount of detergent in
Is constructed so that the flow rate is variable.
Even if the flow rate of water flow varies,
Cleaning agent is sprayed on the inner wall of the bathtub to remove dirt.
Can greatly improve the cleaning performance,
It is possible to clean the inner wall surface. Only
Also, since the detergent is introduced into the water channel, the detergent communicates with the detergent.
Stir evenly until the water (hot water) reaches the washing nozzle
Washing at optimum detergent concentration without mixing
Since the cleaning is performed by spraying the liquid, the cleaning property is
Performance and improve the reliability of cleaning.
It can be raised in minutes.

Further, among appliances and devices constituting the bathtub cleaning device, at least a device in which at least a hot water supply valve, a detergent charging device, and a detergent tank are integrated into a unit,
The inlet side of the unit can be connected to the branch of the hot water supply pipe near the faucet for dropping hot water into the bathtub, and the outlet side can be connected to the cleaning nozzle, making installation of the bathtub cleaning device very simple. In addition, since the washing unit can be installed in the dead space in the bathroom, the effective use space in the bathroom is not narrowed, and even in a housing situation where the bathroom is narrow, the excellent bathtub cleaning device of the present invention is introduced. Installation is easy.

Further, in the case where the cleaning nozzle is configured to be rotatable, one or more cleaning liquid injection holes are provided in a direction intersecting the axis of rotation, so that one cleaning nozzle can be used to clean the inner surface of the bathtub. The cleaning liquid can be sprayed and adhered to every corner, the same effect as in the case where a plurality of cleaning nozzles are provided can be obtained, and a single cleaning nozzle is sufficient, so that the apparatus configuration can be simplified accordingly.

[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 a block diagram showing a configuration example of a main part of a control device constituting the bathtub cleaning device of the present invention.

FIG. 3 is a cross-sectional view showing one configuration example of a cleaning nozzle used in the bathtub cleaning apparatus of the present invention.

FIG. 4 is an explanatory diagram of a state in which rotation of the cleaning nozzle is stopped.

FIG. 5 is an operation explanatory diagram when a right rotation operation of the cleaning nozzle is started.

FIG. 6 is a diagram illustrating a state in which a valve hole is opened by the clockwise rotation operation of the cleaning nozzle and the entire cleaning nozzle is clockwise rotated.

FIG. 7 is an explanatory diagram of an initial operation when the right rotation of the cleaning nozzle is stopped and a left rotation operation is started.

FIG. 8 is an explanatory diagram of a state in which the cleaning nozzle is rotating counterclockwise.

FIG. 9 is an explanatory diagram of a detergent charging device used in the bathtub cleaning device of the present embodiment.

FIG. 10 is a flowchart of a bathtub cleaning operation by the bathtub cleaning apparatus of the present embodiment.

FIG. 11 is a system configuration diagram showing a second embodiment of the bathtub cleaning apparatus according to the present invention.

FIG. 12 is a system configuration diagram illustrating a third embodiment of the bathtub cleaning apparatus according to the present invention.

[Explanation of symbols]

 2 Hot water supply unit 5 Hot water supply pipe 6 Bath tub 7 Water tap 11 Branch passage 12 Flow rate sensor 13 Hot water supply valve 32 Cleaning nozzle 61 Detergent charging device 62 Detergent tank

Claims (4)

(57) [Scope of request for utility model registration] 1. A washing method in which a washing liquid is jetted toward an inner wall surface of a bathtub.
The cleaning nozzle is equipped with a water passage.
The flow passage is equipped with a flow rate sensor that detects the flow rate of water flow.
And a detergent charging device for charging a detergent into the water passage.
Is connected to the flow sensor according to the flow rate detected by the flow sensor.
Variably control the detergent input amount of the detergent input device.
Detergent solution with a concentration of detergent
Bath tub provided with variable control means
apparatus. 2. A hot water supply pipe which is provided with a cleaning nozzle for injecting a cleaning liquid toward an inner wall surface of a bathtub, and a hot water supply pipe provided from a water heater to a water faucet portion of the bathtub is branched near the water faucet portion, and the branch passage is formed by the branch passage In addition to being connected to the cleaning nozzle, the branch passage is provided with bathtub cleaning equipment and devices including a hot water supply valve for opening and closing the passage, and a detergent charging device for charging the detergent in the detergent tank into the branch passage. Cleaning water from the water heater side.
A flow sensor is provided to detect the flow rate of water supplied to the
The detergent is supplied according to the flow rate detected by the flow rate sensor.
The detergent concentration set by variably controlling the detergent
Detergent input volume created as a mixture of water and detergent
A bathtub cleaning device provided with variable control means . 3. A hot water supply pipe which is provided with a cleaning nozzle for injecting a cleaning liquid toward an inner wall surface of the bathtub, wherein a hot water supply pipe provided from a water heater to a faucet portion of the bathtub is branched near the faucet portion, and the branch passage is formed by the branch passage. It is connected to the cleaning nozzle, a hot water supply valve for opening and closing the passage to the branch passage, and equipment and devices such tub washing comprising a detergent dosing device for introducing the detergent in the detergent tank in the branch passage provided Cleaning water from the water heater side.
A flow sensor is provided to detect the flow rate of water supplied to the
The detergent is supplied according to the flow rate detected by the flow rate sensor.
The detergent concentration set by variably controlling the detergent
Detergent input volume created as a mixture of water and detergent
A bathtub cleaning device provided with variable control means , wherein at least the hot water supply valve, the detergent tank, and the detergent charging device are integrated and unitized. 4. A cleaning nozzle provided with a rotary drive source and rotatably mounted on a side wall of the bathtub, and having one or more spray holes for spraying a cleaning liquid in a direction intersecting a rotation axis. Claim 1 or Claim 2 or
The bathtub cleaning device according to claim 3 .