JP4075123B2 - Bathtub cleaning equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bathtub cleaning apparatus in which a cleaning liquid is sprayed from a cleaning nozzle into a bathtub to automatically clean dirt on the inner wall surface of the bathtub.
[0002]
[Prior art]
Conventionally, dirt that has adhered to the bathtub is sprayed with various commercially available cleaning agents directly on the dirty part, rubbed thoroughly with a sponge, etc., and then removed by rinsing with tap water to wash away the cleaning agent. It was dropped by that.
The above-mentioned bathtub cleaning work was carried out by hand only, and it was quite a heavy labor, but nowadays, for example, by adding an automatic cleaning device to the bathtub, the cleaning work is sprayed and the water is rinsed with rinsing water. An automatic cleaning system that performs continuous work is also provided.
[0003]
[Problems to be solved by the invention]
However, the automatic cleaning method using the automatic cleaning apparatus has the following problems. That is, the dirt in the bathtub varies depending on the number of bathers and the condition of the bather's body. Especially in recent bathtubs, there is an increasing tendency to be generally equipped with a jet function (so-called jet bath) that jets hot and cold water mixed with air into the bathtub. In contrast, when the jet function is used, dirt tends to adhere to the bathtub more easily. In addition, if the jet function is used frequently or if it is used for a long time, the degree of dirt adhering to the vicinity of the waterline tends to change greatly due to the ripple effect of hot water in the bathtub. With respect to dirt in a bathtub having such a jet function, it has not been possible to expect a cleaning effect corresponding to the degree of dirt by washing with an automatic washing apparatus so far.
[0004]
In particular, when using a circulation circuit that circulates bathtub water in a jet bath, etc., the silicon grease applied to the appliances and connecting piping dissolves and flows out during the bathtub water circulation, and the dissolved silicon grease It may combine with the dirt component of the human body or the hardness component of water to adhere to the bathtub. In such a case, cleaning with an automatic cleaning apparatus so far could not be expected to be very effective.
[0005]
Furthermore, since the user can only compare the degree of soiling in the bathtub after bathing with the degree of cleaning mode used only from the state of the inner wall of the bathtub after cleaning, the optimal cleaning mode in advance. However, there is a problem that a large amount of rinse water is required as a result of using excessive amount of detergent even if the dirt easily drops off, and a long washing time is required. It was.
[0006]
The present invention has been made in view of the problems of the conventional bathtub cleaning device described above, and has a cleaning mode that can remove dirt most efficiently in accordance with the degree of dirt on the inner wall surface of the bathtub in a bathtub having a jet function. It is an object of the present invention to provide a bathtub cleaning device that can automatically clean the inside of the bathtub with the use of the minimum necessary detergent by automatically selecting in advance.
[0007]
[Means for Solving the Problems]
  In order to achieve the above object, a bathtub cleaning apparatus of the present invention is attached to a bathtub having a jet function for jetting hot water mixed with air into the bathtub, and at the time of bathtub cleaning.WashA bathtub cleaning device configured to remove dirt adhered to the inner wall surface of the bathtub by cleaning with purified liquid or rinsing water,
  A cleaning nozzle and a rinsing nozzle are respectively provided at the bottom of the bathtub, and the cleaning nozzle provided at the bottom of the bathtub is set so that the spray angle covers the vicinity of the top and bottom including the position of the peripheral wall of the bathtub where the cleaning liquid is in contact with the water line.
  The cleaning mode using the cleaning liquid is based on the frequency of use of the jet function, and is a saving cleaning mode that uses less cleaning liquid and shortens the cleaning time, and uses more cleaning liquid and longer cleaning time than the saving cleaning mode. At least three types: the standard cleaning mode and the careful cleaning mode that uses a larger amount of cleaning liquid and longer cleaning time than the standard cleaning mode,
  The rinsing operation with the rinsing water is a preliminary rinsing operation performed before the cleaning mode is started and a rinsing operation performed after the cleaning mode is completed,
  Automatically select the cleaning mode according to the rank of usage frequency of the jet functionA first feature is that a controller for cleaning dirt on the inner wall surface of the bathtub is provided.
  Moreover, the bathtub cleaning apparatus of the present invention has the above first feature,In the preliminary rinsing operation, the rinsing water is ejected from the cleaning nozzle that ejects the cleaning liquid used in the cleaning mode.This is the second feature.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
1 is a plan view of a bathtub provided with a bathtub cleaning apparatus according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line XX of FIG. 1, and FIG. 3 is a sectional view taken along line YY of FIG. 4 is a block diagram showing the entire bath apparatus provided with the bathtub cleaning apparatus of the present invention, and FIG. 5 is a flowchart for explaining a cleaning operation sequence in the bathtub cleaning apparatus according to the embodiment of the present invention.
[0009]
Referring to FIGS. 1 to 3, the bathtub 2 is an integrally molded product having a substantially gourd shape in plan view, and a flange portion 2b is formed to project outward from the upper end portion of the peripheral wall 2a, and the peripheral wall 2a. Armrest portions 2c are formed on the left and right side surfaces on the inside. Further, the bathtub 2 is formed with a flat bottom portion 2d along the longitudinal direction from the back side, and a stool portion 2e protruding upward from the bottom portion 2d on the foot side.
[0010]
In addition, a large number of slip patterns 2g, which are uneven undulations for preventing slipping, are formed at the center of the inner surface of the flat bottom 2d of the bathtub 2, and are formed at two locations on the center line along the longitudinal direction of the bathtub cleaning device 2. Is provided with a cleaning nozzle 4a for injecting cleaning liquid or rinsing water, and a rinsing nozzle 4b for injecting only rinsing water is provided therebetween. A drain plug 7 is provided at one location.
[0011]
In the above embodiment, as shown in FIGS. 2 and 4, the cleaning nozzle 4a and the rinsing nozzle 4b are provided on the bathtub bottom 2d, and the pipes 18a and 18b are connected to each other. Although two cleaning nozzles 4a and one rinsing nozzle 4b are arranged in series in the longitudinal direction, the number may be appropriately increased according to the size of the bathtub.
[0012]
The shape of the injection nozzle of the cleaning nozzle 4a is set so as to satisfy the following condition. In other words, in FIG. 1 to FIG. 3, only the position that becomes the center of the spraying range of the cleaning liquid or the rinsing water sprayed from each cleaning nozzle 4a is indicated by the symbol A. In addition, the water line obtained when the standard hot water is filled with water covers the upper and lower vicinity including the position where the water line is in contact with the peripheral wall 2a of the bathtub 2, and the cleaning liquid is applied evenly over the entire circumference of the bathtub 2. In this case, the injection angle θa is set to θa = 85 degrees, for example.
[0013]
The detergent concentration of the cleaning liquid is set to 3%, for example, so that the consumption of the detergent can be reduced as much as possible within a range in which a sufficient cleaning effect can be obtained. Depending on the relationship of the three elements of the injection nozzle diameter φa, the cleaning liquid sprayed from the cleaning nozzle 4 a may foam and may not be sprayed over the entire circumference of the bathtub 2. Therefore, in consideration of this point, the nozzle injection diameter φa of the nozzle needs to be set so as to ensure a nozzle internal pressure for obtaining a flow velocity sufficient to inject the cleaning liquid over the entire circumference of the bathtub 2, for example, φa≈2.8 mm. Set to
[0014]
Reference numeral 10 denotes a jet nozzle, which is a nozzle for producing a so-called jet function by mixing air and jetting hot water mixed with bubbles in a jet-flowed bathtub 2. Reference numeral 12 denotes a pipe connected to the blow nozzle 10, reference numeral 14 denotes a suction port for circulating hot water, reference numeral 16 denotes a pipe communicating with the suction port, and reference numeral 1 denotes a bathtub lid placed on the upper part of the bathtub 2.
[0015]
Moreover, the whole structure of the bath apparatus provided with the bathtub cleaning apparatus of this invention is demonstrated with FIG.
This bath apparatus is configured to include the above-described bathtub 2, the bath 20 with a hot water heater, the detergent supply unit 80, and the controller 100 that controls the overall operation of each of these units. Includes a hot water supply circuit 30, a reheating circuit 50, and a bath drop circuit 70.
[0016]
The hot water supply circuit 30 is for boiling the incoming water from the water supply and supplying the hot water to the inside of the bathtub 2 or the curan (not shown). The hot water supply circuit 30 includes a heat exchanger 31, and a water inlet path 32 before and after the heat exchanger 31. A bypass path 34 is connected to the hot water path 33, and an electromagnetic open / close bypass valve 35 is provided in the middle of the bypass path 34. Further, the water inlet 32 is provided with a water amount sensor 37 for detecting the amount of water entering the heat exchanger 31 and a water inlet temperature sensor 38 for detecting the incoming water temperature, and the hot water outlet 33 is provided with the temperature of the hot water from the heat exchanger 31. A hot water temperature sensor 40 for detecting the hot water temperature, a water amount servo valve 41 for controlling the amount of hot water discharged, and a hot water supply temperature sensor 42 for detecting the hot water temperature after mixing with the water from the bypass 34 are provided.
[0017]
On the other hand, the remedy circuit 50 circulates hot water in the bathtub 2 and circulates it. The remedy circuit 50 includes a heat exchanger 51 for reheating, and a suction path 52 and a discharge path before and after the heat exchanger 51. 53 is connected by a bypass passage 54, and an electromagnetic open / close bypass valve 55 is provided in the middle of the bypass passage 54. Moreover, in the middle of the suction path 52 connected at one end to the suction port 14 of the bathtub 2, water level sensor 57 that detects the water level of the bathtub 2, circulation pump 58 for forced circulation, and whether water enters the heat exchanger 51. A water flow switch 60 for detecting the water temperature, a temperature sensor 61 for detecting the temperature of the hot water in the bathtub 2, and an opening / closing valve 62 for opening and closing the suction passage 52 are sequentially provided. Further, the discharge path 53 is branched into two in the middle, one of which is connected to the above-described pipe 12 communicating with the jet nozzle 10 through the three-way valve 65, and the other is supplied with a detergent to be described later through the cleaning switching three-way valve 67. A pipe 18a that communicates with the cleaning nozzle 4a and a rinse pipe 18b that communicates with the rinsing nozzle 4b via the section 80 are connected.
[0018]
Furthermore, the bath drop circuit 70 is for connecting the hot water supply circuit 30 and the memorial circuit 50 to drop hot water into the bathtub 2, and detects an electromagnetic opening / closing type drop valve 71 and a drop amount. For this purpose, a water amount sensor 72 and a check valve 73 are sequentially provided.
[0019]
The detergent supply unit 80 generates a negative pressure by the on-off valve 82 that opens and closes the detergent supply path connected to the detergent storage tank 81, and the flow of hot water supplied from the discharge path 53 to the pipe 18a to cause the detergent to flow into the pipe 18a. Venturi 83 for pulling into
[0020]
In addition, 90 is an air pipe for air suction connected to the jet nozzle 10, 91 is a check valve provided in the middle of the air pipe 90, and 93 is whether or not the bathtub lid 1 is placed on the bathtub 2. A lid sensor 95 for detection is an electromagnetic on-off valve that opens and closes the drain plug 7.
[0021]
On the other hand, the controller 100 is composed of a control main body 101 composed of, for example, a microcomputer, a kitchen remote controller 102 disposed in a kitchen or the like, and a bathroom remote controller 103 installed in the bathroom.
[0022]
Based on the input data from the remote controllers 102 and 103 and the detection signals from the various sensors 37, 38, 40,... , 41, 62, 65, 82,... And the circulation pump 58 and the like, and controls combustion of a burner (not shown) for the heat exchangers 31 and 51.
[0023]
The remote controllers 102 and 103 are for inputting various commands to the control main body 101. When the kitchen remote controller 102 is viewed, at least an operation switch for starting the apparatus is provided on the operation panel. An automatic operation switch for automatically filling and refilling the bathtub 2 and an automatic washing switch for washing the bathtub 2 are provided, and a display unit for displaying the temperature of the hot water at the time of hot water supply is provided. ing.
[0024]
In addition, when a blow operation switch for operating a jet function (not shown) of the bathroom remote controller 103 is operated, the circulation pump 58 of the memorial circuit 50 of the bath tub 20 with a hot water heater is activated, and the on-off valve 62 And the bypass valve 55 is opened, so that hot water in the bathtub 2 is circulated and mixed with air from the air pipe 90 when hot water is discharged from the jet nozzle 10 through the pipe 12 from the discharge path 53. A jet function in which mixed hot water is ejected into the bathtub 2 is exhibited.
[0025]
When the automatic cleaning switch of the kitchen remote controller 102 is turned on, the number of times the jet function is used immediately after the end of the previous cleaning operation until the start of the current cleaning operation (the frequency of use of the jet function and the degree of dirt in the bathtub) Is automatically detected, and the most appropriate cleaning mode corresponding to the detection result is automatically selected to control bath cleaning. That is, the control is performed so that the dirt on the inner wall surface of the bathtub can be cleaned in the cleaning mode having a high cleaning capability in proportion to the increase in the use frequency of the jet function. In order to perform such control, software having the following contents is built in the control unit main body 101.
[0026]
That is, the software is configured such that the cleaning mode corresponding to the use frequency of the jet function is automatically selected and the cleaning operation is started. Specifically, in view of the fact that after bathing when the jet function is used, the bath is much more easily contaminated than after bathing when the jet function is not used, this time since the end of the previous bath cleaning operation. The number of jet functions used until the start of the bath washing operation is called from the stored data in the control main body 101, and the data regarding the number of times the jet function is used is as follows: (1) When the jet function is not used at all (degree of contamination) (2) The number of times the jet function is used is less than a certain number of times (ordinary level of dirt), and (3) The number of times the jet function is used is a certain number or more. A procedure to determine which rank among the three ranks set to be (severely dirty) and a savings wash corresponding to the determined rank And a procedure for selecting whether mode or standard wash mode or carefully cleaned mode. That is, in the case of (1) above, select a saving cleaning mode in which less cleaning liquid is used and the cleaning time is shortened, and in the case of (2) above, a larger amount of cleaning liquid is used than in the saving cleaning mode. A standard cleaning mode with a longer cleaning time is selected, and in the case of (3) above, a careful cleaning mode with a longer cleaning time and a larger amount of cleaning liquid used than the standard cleaning mode is selected. As described above, the software is configured such that one of the above-described cleaning modes is automatically selected according to the frequency of use of the jet function, and bath cleaning is performed.
[0027]
Next, the washing | cleaning operation | movement sequence by the bathtub washing apparatus concerning the embodiment of this invention is demonstrated, referring the flowchart shown in FIG.
Now, when the automatic cleaning switch of the kitchen remote controller 102 is turned on (Yes in step S1), in response to this, the control main body 101 determines whether or not an automatic bath operation switch or an unshown reheating switch of the bathroom remote controller 103 is operated. (Whether or not the bath is in use) is determined (step S2).
[0028]
When a switch such as the bath automatic operation switch is operated, it is determined that the bath is in use (Yes in Step S2), and the cleaning operation is canceled (Step S3). Is displayed. On the other hand, when a switch relating to bath use such as a bath automatic operation switch is not operated, the control main body 101 determines whether the bathtub lid 1 is placed on the bathtub 2 based on the detection output of the lid sensor 93. It is determined whether or not (step S4).
[0029]
When the bathtub lid 1 is not placed (No in step S4), an instruction to place the bathtub lid 1 on the display unit is displayed (step S5), and the process returns to step S4. On the other hand, when the bathtub lid 1 has already been placed on the bathtub 2 (Yes in step S4), the on-off valve 95 is opened so that hot water is always drained from the drain plug 7 (step S6). Elapsed time T after opening the on-off valve 95 is a preset maximum drainage time T_MAxIt is determined whether or not it exceeds (step S7). Maximum drain time T in this case_MAxIs determined by adding an extra time to the time required for the hot water to be completely drained from the bathtub 2 after opening the drain plug 7 after the inside of the bathtub 2 is full._MAx= 10 minutes.
[0030]
Maximum drainage time T_MAxIf it has elapsed (Yes in step S7), it is determined that the remaining water in the bathtub 2 is completely drained, and the process proceeds to step S10. The maximum drainage time T_MAxIf it has not elapsed (NO in step S7), it is then determined based on the detection output of the water level sensor 57 whether there is residual water in the bathtub 2 (step S8).
[0031]
Then, when the detection output of the water level sensor 57 is turned off (no residual water) (Yes in step S8), the elapsed time T from this point is set as the required time T set in advance.₀It is determined whether or not this is the case (step S9). Time required T in this case₀Is determined in consideration of the time required until the residual water is completely drained from the drainage pipe after the residual water in the bathtub 2 becomes lower than the water level detectable by the water level sensor 57, for example, T₀= 3 minutes is set.
[0032]
Time required T in step S9₀Has not yet elapsed (NO in step S9), the process returns to step S7 while the required time T₀Is passed (Yes in step S9), it is determined that there is no remaining water in the bathtub 2, and a preliminary rinsing operation is performed (step S10).
[0033]
In this preliminary rinsing operation, the control main body 101 first closes the bypass valve 35 of the hot water supply circuit 30 of the bath 20 with hot water heater, opens the drop valve 71 of the drop circuit 70, and closes the open / close valve 62 and the bypass valve 55. Further, the three-way valve 65 in the middle of the hot water discharge path 53 is closed to stop the discharge of hot water to the jet nozzle 10, while the cleaning switching three-way valve 67 leading to the cleaning nozzle 4 a is switched to the pipe 18 a side, and the detergent supply unit 80. The on-off valve 82 is closed.
Then, water from the water inlet 32 of the hot water supply circuit 30 flows through the heat exchanger 31 and the hot water outlet 33, and is further supplied to the heat exchanger 51 of the remedy circuit 50 through the drop circuit 70. At this time, the control main body 101 always keeps constant on the side of the remedy circuit 50 based on both detection outputs of the water amount sensor 41 of the hot water supply circuit 30 and the water amount sensor 71 of the drop circuit 70 even when a currant (not shown) is used. The amount of water (for example, 5 liters / minute) is adjusted so that the opening amount of the water amount servo valve 41 is adjusted and the heat exchanger 31 of the hot water supply circuit 30 is heated so that hot water at a predetermined temperature (for example, 48 ° C.) Combustion control is performed so that the hot water is discharged from the tank.
[0034]
In this way, the hot water discharged from the water bath with hot water heater 20 passes from the discharge passage 53 through the washing switching three-way valve 67 to the venturi 83. At this time, since the on-off valve 82 of the detergent supply unit 80 is closed, only hot water as rinsing water passes through the pipe 18a and is jetted from the cleaning nozzle 4a toward the inner wall surface of the bathtub 2. As a result, dirt such as scale adhering to the peripheral wall 2a of the bathtub 2 is preliminarily washed. In addition, since the inner wall surface of the bathtub 2 is wetted to one surface at the same time, the detergent easily spreads over the whole when the cleaning liquid is sprayed, and the inner wall surface of the bathtub is preliminarily warmed prior to the spraying of the cleaning liquid. The cleaning effect can be improved.
[0035]
The preliminary rinse state is the predetermined time T₁When (e.g., 2.5 minutes) has elapsed (Yes in step S11), the number n of use of the jet function performed from the previous bath cleaning to the current bath cleaning is called from the stored data of the control main body 101 and called. The result of data is that the jet function is not used at all and the number of times of use is rank 1 (n = 0 times), and the case of rank 2 where the number of times of use is less than a certain number of times (for example, 0 <n ≦ 5) and at least three ranks in the case of rank 3 in which the use frequency is a certain number of times (for example, n> 5), and at the same time, the cleaning mode corresponding to the determined rank result is It is automatically selected (step S12). That is, one of the “saving cleaning mode” (step S13), the “standard cleaning mode” (step S14), and the “careful cleaning mode” (step S15) is selected.
Thereafter, the opening degree of the water amount servo valve 41 is adjusted so that a predetermined amount of water (for example, 15 liters / minute) flows out from the hot water bath 20 side, and the opening / closing valve 82 of the detergent supply unit 80 is turned on. open.
As a result, the detergent stored in the storage tank 81 is mixed with the hot water by the negative pressure generated when the hot water from the hot water bath 20 passes through the venturi 83, and then the cleaning nozzle 4a passes through the pipe 18a. Is sprayed as a cleaning liquid. As a result, dirt such as scale adhering to the peripheral wall 2a of the bathtub 2 is washed with the washing liquid containing the detergent.
[0036]
Here, the amount of detergent used in each of the “saving cleaning mode”, “standard cleaning mode”, and “careful cleaning mode” is, for example, 12 cc, 30 cc, and 55 cc. The required time in each case is, for example, 7 Seconds, 16 seconds, and 32 seconds.
[0037]
In any of the selected cleaning modes, when the cleaning liquid injection time has elapsed (Yes in step S16), first, the detergent supply unit 80 is used to prevent the hot water in the pipe 18a from flowing back to the storage tank 81. After closing the open / close valve 82, the open / close valve 71 of the drop circuit 70 is closed, and the injection of the cleaning liquid from the cleaning nozzle 4a is terminated (step S17).₂(Step S18 is YES). This waiting time T₂Is determined in consideration of the time until the detergent sufficiently penetrates dirt such as scale and the cleaning liquid flows down the side wall of the bathtub 2 and penetrates the entire inner wall of the bathtub 2.₀= 2 minutes is set. By doing so, it sprays directly on the heavily contaminated part to remove the dirt, and the other part is cleaned by using the washing liquid flowing down, so that it is effective while saving the cleaning liquid (ie detergent). Cleaning can be performed automatically.
[0038]
Next, the control main body 101 shifts to a rinsing operation. In this rinsing operation, first, the first rinsing operation (step S19) by the cleaning nozzle 4a is performed. Since the first rinsing operation is similar to the preliminary rinsing operation described in step S10, detailed description thereof is omitted here. And the bathtub washing by this 1st rinse operation is predetermined time T_ThreeAfter continuing (for example, 3 minutes) (Yes in step S20), the second rinsing operation is performed in which only the washing switching three-way valve 67 is switched and only hot water is injected into the bathtub 2 as the rinsing water from the rinsing nozzle 4b (step). S21) is performed. Thereby, the cleaning liquid remaining in the bathtub 2 is completely washed away.
[0039]
The second rinsing operation is performed for a predetermined time T._FourAfter continuing (for example, 3 minutes) (Yes in step S22), the three-way valve 67 is closed while the three-way valve 65 is opened for a predetermined time (for example, 10 seconds), and a small amount of hot water is discharged from the jet nozzle 10. In order to prevent the cleaning liquid from remaining on the stool 2e of the bathtub 2 (step S23). As a result, the cleaning operation ends.
[0040]
As apparent from the above description, according to the bathtub cleaning device according to the embodiment of the present invention, the degree of dirt in the bathtub is automatically grasped by the frequency of use of the jet function. , The degree of dirt can be determined with considerable accuracy, and as the frequency of use of the jet function increases, bath cleaning can be performed by selecting a cleaning mode with a high cleaning effect, so cleaning is extremely high and does not cause polishing. There is an effect that work can be performed.
Further, the degree of dirt in the bathtub is automatically detected as being proportional to the frequency of the jet function, and the most desirable cleaning mode is automatically selected for the detected number of times of use of the jet function, and cleaning is performed. That is, when the jet function is not used at all, bath cleaning is performed in a saving cleaning mode in which less cleaning liquid is used and cleaning time is shortened. When the number of times of use is less than a certain number of times, the bath is cleaned in the standard cleaning mode in which more cleaning liquid is used and the cleaning time is longer than in the above-described saving cleaning mode. Further, when the number of times of use is equal to or greater than a certain number of times, the bath is cleaned in a careful cleaning mode in which more cleaning liquid is used and the cleaning time is longer than in the standard cleaning mode. Therefore, there are no disadvantages that an excessive cleaning solution is used for light dirt that easily falls, and that it takes a long cleaning time and a long cleaning time, and the necessary amount of detergent is minimal. Furthermore, as the state of dirt increases, an effective cleaning state can be ensured with the necessary and sufficient detergent and cleaning time corresponding to the rank.
[0041]
【The invention's effect】
  This invention consists of the above structure, and according to the bathtub washing | cleaning apparatus of Claim 1, it was attached to the bathtub provided with the jet function which spouts the hot water mixed with air in the bathtub, and a washing liquid and rinse water at the time of bathtub washing A bathtub cleaning device configured to remove dirt adhered to the inner wall surface of the bathtub by cleaning withThe cleaning nozzle and the rinsing nozzle are respectively provided at the bottom of the bathtub, and the cleaning nozzle provided at the bottom of the bathtub sets the spray angle so as to cover the upper and lower vicinity including the position of the peripheral wall of the bathtub where the cleaning liquid is in contact with the water line. According to the frequency of use of the jet function, according to the usage frequency of the jet function, less cleaning liquid is used and the cleaning time is shortened, and the cleaning liquid is used more than the saving cleaning mode and the cleaning time is longer. There are at least three types of standard cleaning modes and a careful cleaning mode that uses a larger amount of cleaning liquid and longer cleaning time than the standard cleaning mode, and the rinsing operation with rinsing water is performed before the cleaning mode is started. The preliminary rinsing operation to be performed and the rinsing operation to be performed after the cleaning mode is completed. Dynamically selecting and providing the controller for cleaning stains bathtub wallSo
  The dirt in the bathtubDepending on the rank, a saving cleaning mode, a standard cleaning mode, and a careful cleaning mode can be automatically selected.Therefore, excessive cleaning liquid is not used for easily removed dirt, and the cleaning liquid (that is, the detergent) and the rinse water are efficiently saved. The effect is extremely large. In addition, since the cleaning time and the rinsing time are not prolonged, it is possible to perform the cleaning quickly and efficiently because it is the minimum necessary.
  Since the cleaning nozzle and the rinsing nozzle are respectively provided at the bottom of the bathtub, and the cleaning nozzle provided at the bottom of the bathtub is set so that the spray angle covers the vicinity of the upper and lower sides including the position of the peripheral wall of the bathtub in contact with the water line. The liquid from the washing nozzle can be surely applied from the bottom of the bathtub to the peripheral wall position of the bathtub covering the vicinity of the upper and lower sides including the water line where contamination easily occurs.
  The rinsing operation with rinsing water is a preliminary rinsing operation that is performed before the cleaning mode is started and a rinsing operation that is performed after the cleaning mode is completed. Preliminarily washed. Moreover, since the inner wall surface of the bathtub is wetted by the preliminary rinsing operation, the detergent easily spreads over the entire surface when the cleaning liquid is sprayed thereafter, and the cleaning effect of the detergent can be improved.
  Moreover, according to the bathtub cleaning apparatus of Claim 2, in addition to the effect by the structure of Claim 1, in preliminary | backup rinse operation | movement, the ejection of the washing liquid used in washing | cleaning mode is performed in ejection of rinse water Since we decided to do it from the cleaning nozzle,
  Rinsing water for the preliminary rinsing operation can be applied in advance to the wall surface on which the cleaning liquid is applied.
[Brief description of the drawings]
FIG. 1 is a plan view of a bathtub showing an embodiment of the present invention.
2 is a cross-sectional view taken along line XX of FIG.
3 is a cross-sectional view taken along line YY in FIG.
FIG. 4 is a configuration diagram illustrating the entire bath apparatus including the bathtub cleaning apparatus according to the embodiment of the present invention.
FIG. 5 is a flowchart for explaining a cleaning operation sequence by the bathtub cleaning device according to the embodiment of the present invention.
[Explanation of symbols]
1 Bathtub lid
2 Bathtub
4a Cleaning nozzle
4b Rinse nozzle
10 Fusible nozzle
20 Bath kettle with water heater
30 Hot water supply circuit
50 Memorial circuit
80 Detergent supply section
100 controller

Claims (2)

Bath tub cleaning device attached to a tub equipped with a jet function for jetting hot water mixed with air into the tub, and configured to be able to remove dirt adhered to the inner wall surface of the tub by cleaning with a cleaning liquid or rinsing water when cleaning the bathtub. Because
A cleaning nozzle and a rinsing nozzle are respectively provided at the bottom of the bathtub, and the cleaning nozzle provided at the bottom of the bathtub is set so that the spray angle covers the vicinity of the top and bottom including the position of the peripheral wall of the bathtub where the cleaning liquid is in contact with the water line.
The cleaning mode using the cleaning liquid is based on the frequency of use of the jet function, and is a saving cleaning mode that uses less cleaning liquid and shortens the cleaning time, and uses more cleaning liquid and longer cleaning time than the saving cleaning mode. At least three types: the standard cleaning mode and the careful cleaning mode that uses a larger amount of cleaning liquid and longer cleaning time than the standard cleaning mode,
The rinsing operation with the rinsing water is a preliminary rinsing operation performed before the cleaning mode is started and a rinsing operation performed after the cleaning mode is completed,
A bathtub cleaning apparatus comprising a controller that automatically selects a cleaning mode according to the rank of the frequency of use of the jet function and cleans the dirt on the inner wall surface of the bathtub. 2. The bathtub cleaning apparatus according to claim 1, wherein in the preliminary rinsing operation, the rinsing water is ejected from a cleaning nozzle that ejects a cleaning liquid used in the cleaning mode.

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