JP2018175001A - Bathtub cleaning device - Google Patents

Abstract

The present invention provides a bathtub cleaning apparatus capable of obtaining stable cleaning performance by injecting a cleaning solution to a predetermined injection position regardless of the use condition of a bath and the installation environment of the bathtub cleaning apparatus.
A detergent mixing unit (51) that mixes a detergent supplied from a detergent tank (41) with hot water supplied from a heat source machine 6 to generate a cleaning solution, and jets the cleaning solution generated by the detergent mixing unit (51) to a bath (1). The flow rate of the cleaning liquid is adjusted so as to be the set flow rate set by the manual flow rate setting unit R.
[Selected figure] Figure 1

Description

  The present invention relates to a bathtub cleaning apparatus that automatically cleans a bathtub. In particular, the present invention relates to a bathtub cleaning device provided with a flow rate setting mode for manually setting a set flow rate of cleaning fluid during cleaning operation.

  BACKGROUND Conventionally, there has been known a bathtub cleaning device that sprays a cleaning solution into a bathtub to wash away dirt attached to the inner wall surface of the bathtub. For example, a bathtub cleaning apparatus has been proposed in which the injection angle is set so that the cleaning solution is sprayed over the entire inner wall surface of the bathtub and the entire surface of the bathtub lid (Patent Document 1).

  By the way, the dirt on the inner wall surface of the bath is most likely to be attached to the area where the water line contacts when the bather takes a bath. Therefore, in order to execute the cleaning operation efficiently, it is desirable to spray the cleaning solution to this most soiled area. Therefore, in patent document 1, the injection amount is set so that the cleaning water is injected to the area where the standard hot water poured into the bath is in contact and the draft line when the hot water of the standard hot water is injected contacts the inner wall surface of the bath. Is set.

  However, the usage conditions of the bathtub differ depending on each home. For example, the amount of hot water constantly poured into the bath differs even if the size of the bath is the same between a case where multiple persons bathe simultaneously and a case where only one bather baths each time. Therefore, even if a standard hot water amount is set according to the size of the bath, the water line is formed at a position different from the time when the hot water of the standard hot water is poured, and the desired cleaning effect can not be obtained. There's a problem.

  Moreover, in the bathtub cleaning apparatus which injects a washing | cleaning liquid using tap water pressure of tap water, if tap water pressure changes with areas, the flow rate of hot and cold water supplied to the bathtub cleaning apparatus from a heat source machine such as a water heater fluctuates. Therefore, the flow rate of the cleaning solution is likely to fluctuate. Furthermore, since the heat source unit is often installed outdoors, and the piping length from the heat source unit to the cleaning nozzle varies depending on the installation environment, the flow rate of the cleaning liquid tends to fluctuate also by the difference in piping length. Therefore, even if the standard hot water quantity according to the size and use conditions of the bath is assumed in advance and the hot water is poured into the bath with the standard hot water quantity, the water line when the hot water is poured with the assumed standard hot water quantity The cleaning liquid is not jetted to the area in contact with the inner wall surface of the bath, and there is a possibility that a sufficient cleaning effect can not be obtained.

JP 10-328124 A

  The present invention solves the above-mentioned problems, and the object of the present invention is to obtain a stable cleaning performance by injecting the cleaning liquid to a predetermined injection position regardless of the use condition of the bath and the installation environment of the bath cleaning device. To provide a bathtub cleaning device.

According to the invention
A detergent mixing unit that mixes the detergent supplied from the detergent tank with the hot water supplied from the heat source machine to generate a cleaning solution;
A cleaning nozzle that sprays the cleaning liquid generated by the detergent mixing unit into a bath;
A flow rate adjustment unit configured to adjust the flow rate of the cleaning liquid injected from the cleaning nozzle to a predetermined set flow rate;
A manual flow rate setting unit for manually setting a set flow rate of the cleaning liquid to be jetted from the cleaning nozzle;
When the set flow rate of the cleaning liquid to be jetted from the cleaning nozzle is set by the manual flow rate setting unit, there is provided a bathtub cleaning device including a storage unit that stores the set flow rate of the cleaning liquid after setting as a new set flow rate.

  The bathtub cleaning apparatus includes a flow rate adjusting unit that adjusts the flow rate of the cleaning liquid jetted from the cleaning nozzle to a set flow rate, a manual flow rate setting unit that manually sets a set flow rate of the cleaning liquid jetted from the cleaning nozzle, and a manual flow rate When the setting flow rate of the cleaning liquid to be sprayed from the cleaning nozzle is set in the setting unit, the setting flow rate of the cleaning liquid after setting is stored as a new setting flow rate. The injection position of the cleaning liquid ejected from the cleaning nozzle can be easily and manually changed according to the use conditions and the installation environment of the bathtub cleaning apparatus.

Preferably, the bathtub cleaning device is configured to be able to execute an operation in a flow rate setting mode for setting a set flow rate of the cleaning solution to be sprayed from the cleaning nozzle during the cleaning operation,
When operating in the flow rate setting mode, the manual flow rate setting unit sets the set flow rate of the cleaning liquid to be injected from the cleaning nozzle.

  According to the above-described bathtub cleaning apparatus, since operation in the flow rate setting mode for setting the set flow rate of the cleaning liquid to be jetted from the cleaning nozzle during the cleaning operation can be performed, the bathtub cleaning can be performed without executing all steps of the cleaning operation. At the installation site of the apparatus, it can be confirmed whether the cleaning liquid is injected from the cleaning nozzle to the appropriate injection position. Then, according to the bathtub cleaning device, when the set flow rate of the cleaning liquid to be jetted from the cleaning nozzle is set by the manual flow rate setting unit during operation in the flow rate setting mode, the set flow rate of the cleaning liquid after setting is the new set flow rate Since the flow rate of the cleaning liquid sprayed from the cleaning nozzle during the cleaning operation is adjusted to be the newly set set flow rate, the cleaning liquid can be jetted to an appropriate injection position. Thus, for example, even in a bathtub cleaning device in which the injection position of the cleaning solution is previously set, assuming a standard amount of hot water poured into the bathtub, the usage condition of the bathtub and the installation of the bathtub cleaning device at the installation site of the bathtub cleaning device. Depending on the environment, the spray position of the cleaning liquid can be easily changed manually to a more appropriate position.

  Preferably, the bathtub cleaning apparatus is configured to be able to perform the operation in the cleaning trial operation mode continuously before or after the operation in the flow rate setting mode.

  According to the above-described bathtub cleaning apparatus, the operation in the cleaning trial run mode can be performed continuously before or after the operation in the flow rate setting mode. It is possible to prevent and set the set flow reliably.

  As described above, according to the present invention, since the spray position of the cleaning liquid can be easily changed manually at the installation site of the bathtub cleaning device, not only the use conditions of the bathtub such as the number of regular bathers but also the water supply Even if the installation environment of the bathtub cleaning apparatus such as water pressure and piping length is different, it is possible to provide a bathtub cleaning apparatus capable of obtaining stable cleaning performance.

FIG. 1 is a schematic configuration view showing a bathtub cleaning apparatus according to a first embodiment of the present invention. FIG. 2 is a flow chart showing a control operation in a test run of the bathtub cleaning apparatus according to the first embodiment of the present invention. FIG. 3 is a schematic configuration view showing a bathtub cleaning apparatus according to a second embodiment of the present invention. FIG. 4 is a flowchart showing a control operation in a test run of the bathtub cleaning apparatus according to Embodiment 2 of the present invention.

Embodiment 1
Hereinafter, a bathtub cleaning device according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic configuration view showing a bathtub cleaning apparatus according to the present embodiment. As shown in FIG. 1, the bathtub 1 is disposed along the bathroom wall in the bathroom BR, and the water heater 6, which is a heat source, is disposed outside the bathroom BR (for example, outdoors). Although not shown, the bath 1 constitutes an inner peripheral wall of the bath constituting the water storage section, an upper edge flange extending horizontally outward from the opening edge of the water storage section, and an outer surface of the bath 1 An inner space 10 is formed below the upper edge flange portion.

  At the bottom of the bath 1, a drainage plug 2 for draining bath water and a washing nozzle 7 for jetting hot water and washing liquid are provided. Although not shown, the cleaning nozzle 7 has injection ports for radially injecting the hot water and the cleaning liquid supplied through the cleaning pipe 43 over the entire inner peripheral surface of the water storage portion of the bath 1. The injection port is configured such that the injection position of the hot water or the cleaning liquid fluctuates in the upper and lower regions of the inner circumferential surface of the water storage portion according to the flow rate of the hot water or the cleaning liquid. The cleaning nozzle 7 may be provided separately from the bathtub 1. A drainage switch 5 is provided at the upper edge flange portion of the bath 1, and the drainage switch 5 is connected to a drainage plug controller 50 for opening and closing the drainage plug 2 provided below the upper edge flange portion. Therefore, when the user operates the drainage switch 5 or operates the cleaning switch of the remote control R described later, the drainage plug 2 is opened, and the bath water in the bathtub 1 is drained.

  Although not shown, the water heater 6 includes a gas burner and a hot water supply heat exchanger. A gas supply pipe 78 is connected to the gas burner. The hot water supply heat exchanger includes a water supply pipe 63 for supplying clean water from a water supply source, and a hot water supply pipe for supplying hot and cold water heated from the water heater 6 to a hot water supply plug 65 such as curry or shower and a main unit 4 described later. 66 and are connected. In the water heater 6, a water heater controller 60 for controlling the hot water filling operation and the hot water supply operation is incorporated, and a water supply sensor provided in the water supply pipe 63, a hot water supply temperature sensor provided in the hot water supply pipe 66, etc. Various sensors, various control valves provided in the water supply pipe 63, the hot water supply pipe 66, and the gas supply pipe 78, an igniter, a power supply box, and a remote controller for a not-shown water heater are connected with the water heater controller 60 via electric wiring. It is done. In the present embodiment, the water heater 6 has only a hot water supply heat exchanger, but a circulation fitting is provided in the bath 1, and a hot water supply heat exchanger and a bath heat exchanger are provided in the water heater 6 You may use the water heater which it has. In addition, an electric water heater or a heat pump water heater may be used.

  The water supply pipe 63 and the hot water supply pipe 66 are branched into the hot water supply plug 65 side and the main unit 4 side disposed on the back surface of the ceiling wall of the bathroom BR. Check valves 71 and 72 and a hot water mixing section 80 are provided in the first temperature control water supply pipe 63a and the first hot and cold water supply pipe 66a on the upstream side branched from the water supply pipe 63 and the hot water supply pipe 66 respectively to the main unit 4 side. It is connected. More specifically, the hot and cold water mixing unit 80 includes a water temperature sensor 81, a water amount sensor 83, and a water amount adjusting valve 85, which are sequentially interposed from the upstream side to the upstream first temperature control water supply pipe 63a. A hot water temperature sensor 82, a hot water quantity sensor 84, and a hot water quantity adjustment valve 86 are provided in the first hot water supply pipe 66a sequentially from the upstream side. In addition, antifreeze heaters 73 and 74 are disposed around the piping of the first temperature control water supply pipe 63a and the first hot and cold water supply pipe 66a on the upstream side near the check valves 71 and 72, respectively. The upstream first water supply pipe 63a for temperature control and the first hot water supply pipe 66a join on the downstream side of the water amount adjustment valve 85 and the hot water amount adjustment valve 86, and constitute one second hot water supply pipe 66b on the upstream side ing. A temperature sensor 75 is interposed in the upstream second hot and cold water supply pipe 66b.

  The upstream second hot and cold water supply pipe 66 b is connected to a hot and cold water tank 47 which is a hot and cold water storage unit via a water replenishment electromagnetic valve 46. In addition, the hot water supply pipe 66d is branched from the upstream second hot water supply pipe 66b connecting the hot water / water mixing unit 80 and the hot water tank 47, and the hot water supply pipe 66d is filled with hot water. The solenoid valve 90 is connected to a flush plug 79 located above the bathtub 1 via a solenoid valve 90. An antifreeze heater 76 is disposed around the piping of the hot water supply pipe 66 d between the branched portion of the upstream second hot water supply pipe 66 b and the hot water solenoid valve 90.

  Although not shown, at the upper part of the hot water tank 47, a water filling port for discharging hot water supplied from a second hot water supply pipe 66b on the upstream side and an overflow port located below the water filling port are provided. Further, an outlet is provided at the bottom of the hot water tank 47, and a downstream third hot water supply pipe 66c for supplying hot water to the pump 48 is connected to the outlet. Further, an overflow pipe 68 extended in the bath tub is connected to the overflow port. Therefore, a water discharge port space is formed between the water replenishment port and the overflow port, and the upstream second hot and cold water supply pipe 66 b and the downstream third hot and cold water supply pipe 66 c are separated by the hot water tank 47. Therefore, the hot and cold water tank 47 also functions as a backflow prevention unit.

  A pump 48 and a downstream solenoid valve 49 are interposed in the downstream side of the third hot water supply pipe 66c in order from the upstream side. The pump 48 is driven and stopped by the control signal from the main body unit controller 40, and the downstream side solenoid valve 49 is opened and closed to supply and stop the hot water from the hot water tank 47 to the cleaning liquid generation unit 3, Spraying and stopping of hot water and cleaning fluid are performed from the cleaning nozzle 7 by the Further, by controlling the drive voltage of the pump 48 in accordance with the control signal from the main body unit controller 40, the flow rate of the hot water or the cleaning liquid injected from the cleaning nozzle 7 is adjusted. Therefore, in the present embodiment, the drive control unit of the pump 48 and the pump 48 in the main unit controller 40 functions as a flow rate adjustment unit that adjusts the flow rate of the cleaning liquid injected from the cleaning nozzle 7.

  Although not shown, the main unit 4 is provided with a casing in which each component such as the hot water mixing section 80, the hot water tank 47, and the pump 48 described above is accommodated, and the hot water / water mixing section 80 in the casing is A low temperature sensing temperature sensor 77 for sensing a temperature is provided. Further, the main body unit controller 40 is incorporated in the main body unit 4 and the water temperature sensor 81, the water temperature sensor 82, the water amount sensor 83, the water amount sensor 84, the water amount adjusting valve 85, the water amount adjusting valve 86 described above Prevention heaters 73, 74, 76, temperature sensor 75, temperature sensor for low temperature detection 77, solenoid valve 46 for water replenishment, pump 48, downstream solenoid valve 49, solenoid valve for hot water filling 90, remote control R, hot water tank not shown The electrodes in 47 and the power supply box are connected to the main unit controller 40 through electrical wiring. Furthermore, the main body unit controller 40 is connected to the cleaning unit controller 30, which will be described later, in a bi-directional communication manner.

  In the bathtub interior space 10 located below the upper edge flange portion of the bathtub 1, the detergent tank 41 for storing the detergent, the venturi-type detergent mixing unit 51, and the detergent tank 41, which constitute the cleaning solution generation unit 3, are provided. A detergent introduction pipe 44 for guiding the detergent to the detergent mixing unit 51 is provided, and the detergent introduction pipe 44 has first and second detergent valves 42a and 42b for adjusting the supply of the detergent to the detergent mixing unit 51. It is interposed. The detergent mixing unit 51 and the cleaning nozzle 7 are connected via the cleaning pipe 43. The detergent tank 41, the first and second detergent valves 42a and 42b, and the detergent mixing unit 51 may be spaced apart from each other according to the size of the bathtub interior space 10 and the like. Good.

  The main unit 4 on the ceiling and the cleaning liquid generation unit 3 in the bathroom BR are connected by a hot water pipe 67 penetrating the bathroom wall on one side of the bathtub 1. More specifically, the hot water pipe 67 is connected at its upstream end to the downstream side solenoid valve 49 of the main unit 4 and connected at its downstream end to the detergent mixing unit 51 of the cleaning liquid production unit 3. Therefore, while the first and second detergent valves 42a and 42b are opened, the pump 48 is driven and the downstream side solenoid valve 49 is opened to allow the hot water stored in the hot water tank 47 to be the hot water pipe 67 The detergent and the hot water are mixed by the negative pressure generated when the hot and cold water passes through the detergent mixing unit 51, and the washing liquid is generated through the washing pipe 43, and the washing nozzle 7 is supplied. The cleaning liquid is jetted from the above to wash the bath 1. Further, in a state where the first and second detergent valves 42a and 42b are closed, the pump 48 is similarly driven, and the downstream side solenoid valve 49 is opened to make the hot water stored in the hot water tank 47 When the water is supplied from the water pipe 67 to the detergent mixing unit 51, only the hot water is sprayed from the washing nozzle 7, and the preliminary washing and rinsing of the bath 1 are performed.

  Although not shown, the cleaning solution generation unit 3 includes a casing in which the above-described detergent mixing unit 51 and the first and second detergent valves 42a and 42b are accommodated. Further, the cleaning unit controller 30 is incorporated in the cleaning solution generation unit 3, and the first and second detergent valves 42a and 42b described above and the electrodes of the detergent tank 41 (not shown) are electrically connected with the cleaning unit controller 30. Connected through. Furthermore, the cleaning unit controller 30 is connected to the flush plug controller 50 and the main unit controller 40 in a bi-directional communication manner.

  In the bathroom BR, the remote control R for filling operation and cleaning operation is disposed, and in the present embodiment, the remote control R functions as a manual flow rate setting unit. The remote control R includes an operation switch 101, a water filling switch 102 that performs water filling operation, a washing switch 103 that performs cleaning operation, a washing and water filling switch 104 that performs water filling operation after the cleaning operation, and hot water that sets a water filling temperature Tension temperature setting switch 105, start and stop water heating and cooling water switch 106, washing course setting switch 107 for selecting the washing course, timer switch 108, operation state and setting temperature are displayed. A display unit 110 and the like are provided. Although not shown, the remote controller R is connected to the main unit controller 40 via an electrical wiring, and is connected to the cleaning unit controller 30 or the drainage plug controller 50 via the main unit controller 40. Each controller is constituted by a microcomputer having a CPU, a ROM, and a RAM, and according to the stored control program, operates the drainage plug 2, the cleaning solution generation unit 3, the main unit 4, and the water heater 6, An operation or a cleaning operation is performed.

  Although not shown, the water heater controller 60 includes a hot water supply control unit that controls the combustion of the gas burner, and the main unit controller 40 includes a cleaning operation control unit that controls the cleaning operation, and a trial operation control unit that controls trial operation. Also, in the memory of the main unit controller 40, the set value of the drive voltage of the pump 48 for changing the set flow rate of the cleaning liquid to be sprayed from the cleaning nozzle 7 in multiple steps (here, seven steps of levels 0 to 6) In addition to being stored, one is registered as an initial value at the time of factory shipment.

  Next, with reference to FIG. 2, the control operation of the trial operation mode in the bathtub cleaning device of the present embodiment will be described. The water heater 6 ignites the gas burner when the amount of water detected by the water supply sensor (not shown) provided in the water supply pipe 63 becomes equal to or more than a predetermined amount of water, and the amount of water detected by the water supply sensor becomes less than the predetermined amount of water It is configured to perform point fire control to extinguish the gas burner.

  After installation work of the water heater 6, the cleaning liquid generation unit 3, the main unit 4, the remote control R, etc. is completed, the detergent is put into the detergent tank 41, and the operation switch of the remote control for the water heater is turned on. When the builder turns on the trial run switch to simultaneously press the washing / swelling switch 104 and the washing course setting switch 107 of the remote control R, the flow setting mode for setting the set flow rate of the washing solution, the washing trial run mode, and the pouring test A trial operation mode control program for continuously performing each operation in the mode is started, and first, the operation in the flow rate setting mode is started (step ST1).

  In the operation of the flow rate setting mode, when the drain plug 2 is opened by the drain plug controller 50 and a predetermined drain time elapses after the drain plug 2 is opened, the main unit controller 40 operates only on the main unit 4 side. The refueling solenoid valve 46 is opened so that the hot and cold water is supplied from the hot and cold water mixing unit 80. Then, when the tap water pressure supplies the supply water from the water supply pipe 63 to the water heater 6 and the water supply sensor (not shown) detects a water amount of a predetermined water amount or more, the water heater controller 60 ignites the gas burner to perform the hot water supply operation. Start it. When the hot water supply operation is started, the opening degree of the water amount adjustment valve 85 and the water amount adjustment valve 86 is adjusted in the hot water mixing section 80 so that the temperature of hot water detected by the temperature sensor 75 becomes a predetermined temperature. Hot and cold water adjusted to a predetermined temperature is supplied to the hot and cold water tank 47 through the first temperature control water supply pipe 63a and the first and second hot and cold water supply pipes 66a and 66b (steps ST2 to ST4).

  Next, when it is detected by the electrodes in the hot water tank 47 that the hot water has been stored to a predetermined water level, the main unit controller 40 closes the water replenishment electromagnetic valve 46. Then, the pump 48 is driven with an initial value (for example, a drive voltage at which a flow rate of 6.5 L / min can be obtained) registered in the memory, and the downstream solenoid valve 49 and the first and second detergent valves 42a and 42b. Open the valve. Thereby, the detergent and the hot and cold water are supplied to the detergent mixing unit 51 to generate the cleaning liquid, and the cleaning liquid is sprayed from the cleaning nozzle 7 into the bath 1 at the set flow rate of the initial value (steps ST5 to ST8).

  At this time, if the injection position of the cleaning liquid sprayed from the cleaning nozzle 7 does not coincide with the area where the draft line when pouring hot and cold water of the assumed standard hot water amount contacts the inner wall surface of the bathtub 1, the construction The operator operates the UP / DOWN key of the cleaning course setting switch 107 of the remote controller R to increase or decrease the driving voltage of the pump 48. Then, the flow rate of the cleaning liquid is changed in a predetermined range (for example, the range of the flow rate of 5.0 L / min to 8.0 L / min) in accordance with the flow rate change operation in the cleaning course setting switch 107. Then, it is confirmed that the cleaning solution is mainly sprayed to the area where the draft line when pouring hot and cold water of the assumed standard hot water amount and the inner wall surface of the bathtub 1 come into contact with each other. When the cleaning / pouring switch 104 of the remote controller R is pressed again, the set value is registered in the memory in order to set the changed flow rate as a new set flow rate during the cleaning operation. The downstream solenoid valve 49 and the first and second detergent valves 42a and 42b are closed, and the pump 48 is stopped to terminate the operation in the flow rate setting mode (steps ST9 to ST15).

  When the set flow rate is set by the operation in the flow rate setting mode, the mode shifts to the cleaning trial run mode. Although not shown, in the operation of the washing and trial operation mode, each step is executed in the order of a preliminary rinsing step of jetting only hot water, a washing step of jetting washing liquid, and a rinsing step of jetting only hot water, and each step is the same as above. And the first and second detergent valves 42a and 42b, and the pump 48 is driven at the set value set in the flow rate setting mode, and the cleaning nozzle 7 is operated. The hot water and the washing liquid are sprayed from the above (steps ST16 to ST17).

  When the operation in the cleaning trial operation mode is finished, the system is shifted to the hot water trial operation mode. Although not shown, in the operation in the hot-water filling trial operation mode, the hot water solenoid valve 90 is opened to close the drain plug 2 and supply hot water from the hot water mixing unit 80 only to the hot water tap 79 side. Let Then, in the same manner as described above, tap water is supplied from the water supply pipe 63 to the water heater 6 by the tap water pressure, and the hot water supply operation is started. When the hot water supply operation starts, the opening degrees of the water amount adjustment valve 85 and the hot water amount adjustment valve 86 are adjusted so that the temperature of hot water detected by the temperature sensor 75 becomes a predetermined temperature, and hot water supply Hot and cold water is supplied from the flush water tap 79 to the bathtub 1 through the pipe 66d (steps ST18 to ST19).

  When the predetermined set hot water amount is reached, the hot water filling solenoid valve 90 is closed, the operation of the water heater 6 is stopped, and the test operation completion is notified from the remote control R (step ST20).

  According to the above-mentioned bathtub cleaning device, the injection position of the cleaning liquid sprayed from the cleaning nozzle 7 coincides with the area where the draft line when pouring hot and cold water of the assumed standard hot water amount contacts the inner wall surface of the bathtub 1 Otherwise, the builder or the like manually controls the remote control R to control the drive of the pump 48 to adjust the flow rate of the cleaning liquid and register an appropriate set flow rate in the memory. It is possible to change the injection position of the cleaning liquid to a position suitable for the cleaning operation while confirming the injection position of the cleaning liquid on site.

  Further, according to the bathtub cleaning apparatus, the operation in the flow rate setting mode for setting the set flow rate of the cleaning solution to be jetted from the cleaning nozzle 7 is configured to be executable, so the cleaning solution is not performed. Check and change the injection position of Then, in the operation in the flow rate setting mode, it is confirmed that the cleaning liquid is not jetted in the region where the draft line formed when the hot and cold water of the assumed standard hot water amount is poured and the inner wall surface of the bathtub 1 contacts. In the case where it is determined, the builder or the like can easily change the set flow rate of the cleaning liquid in the cleaning operation by operating the remote control R. Thus, in a bathtub cleaning device in which the injection amount of the cleaning solution is previously set assuming a standard amount of hot water poured into the bathtub 1, the usage condition of the bathtub 1 and the installation of the bathtub cleaning device at the installation site of the bathtub cleaning device. Depending on the environment, the cleaning solution can be jetted at an appropriate set flow rate. If the operation in the cleaning trial operation mode is continuously performed after the operation in the flow rate setting mode, the setting flow can be surely set because the change of the set flow rate is not forgotten.

  Further, according to the above-mentioned bathtub cleaning device, the second hot water supply pipe 66b on the upstream side and the third hot water supply pipe 66c on the downstream side are cut off by the hot water tank 47 having the spout space. Even if the tap water pressure of the supplied tap water fluctuates, the flow rate of the hot and cold water discharged by the pump 48 does not fluctuate. Therefore, even if the water heater 6 is installed at a place away from the bathroom BR, deviation from the set flow rate can be prevented.

  Therefore, according to the bathtub cleaning device of the present embodiment, since the spray position of the cleaning solution can be manually changed at the installation site of the bathtub cleaning device, not only the use conditions of the bathtub 1 such as the number of regular bathers Even if the installation environment of the bathtub cleaning apparatus such as tap water pressure and piping length is different, it is possible to provide a bathtub cleaning apparatus capable of obtaining stable cleaning performance. Further, according to the bathtub cleaning device of the present embodiment, since the spray position of the cleaning solution can be changed according to the use conditions of the bathtub 1 and the installation conditions of the bathtub cleaning device, different bathers bathe continuously, for example In a nursing care facility where it is necessary to wash the bath tub every bathing, even if the tub lid is not placed on the tub 1, the cleaning solution is intensively jetted to a predetermined injection position on the inner wall surface of the tub 1, Scattering of the cleaning solution from 1 can be prevented.

Second Embodiment
The bathtub cleaning apparatus according to the present embodiment does not have the hot water tank 47, the pump 48, and the downstream solenoid valve 49 provided in the main unit 4 of the first embodiment, and the second hot water upstream The supply pipe 66 b is provided with an on-off valve 55 for injecting and stopping the cleaning liquid from the cleaning nozzle 7. Therefore, the flow rate of the cleaning liquid is adjusted by adjusting the opening degree of the water amount adjusting valve 85 and the hot water amount adjusting valve 86 respectively provided in the first temperature control water supply pipe 63a and the first hot water supplying pipe 66a on the upstream side. Therefore, in the present embodiment, the water amount adjustment valve 85 and the water amount adjustment valve 86 disposed in the hot water supply path, and the valve drive unit of the main unit controller 40 that controls the opening thereof adjust the flow rate of the cleaning liquid. It functions as a flow rate adjustment unit. The basic configuration other than the injection and stop of the cleaning liquid and the adjustment of the flow rate of the cleaning liquid is substantially the same as that of the first embodiment. Therefore, with regard to the same configuration as that of the first embodiment, the description will be omitted using the same reference numbers.

  FIG. 3 is a schematic block diagram of a bathtub cleaning device according to the present embodiment. As shown in FIG. 3, an on-off valve 55, a check valve 56, and an air release valve 57 are interposed downstream of the hot and cold water mixing unit 80. Therefore, in the present embodiment, the check valve 56 and the air release valve 57 function as a backflow prevention unit. Further, a switching solenoid valve 91 that switches the flow path to the side of the flush water plug 79 and the side of the cleaning liquid generation unit 3 is interposed in the third hot water supply pipe 66c on the downstream side. More specifically, the switching solenoid valve 91 is configured of a three-way valve, the downstream third water supply pipe 66c is connected to the input side, and the hot water pipe 67 and the hot water tap 79 are connected to the output side. A hot water supply pipe 66d for tensioning is connected. Although not shown, in the memory of the main body unit controller 40, to change the set flow rate of the cleaning liquid to be sprayed from the cleaning nozzle 7 in a plurality of steps (here, seven steps of levels 0 to 6), Embodiment 1 The set value of the total flow rate of the water amount sensor 83 and the hot water amount sensor 84 is stored instead of the set value for controlling the drive of the pump 48, and one of the set values is registered as an initial value at the time of factory shipment.

  Next, with reference to FIG. 4, the control operation of the trial run mode in the bathtub cleaning device of the present embodiment will be described. As in the first embodiment, when the builder performs an on operation of the trial run switch to simultaneously press the cleaning / water filling switch 104 and the cleaning course setting switch 107 of the remote control R, the operation in the flow rate setting mode is started. When the drain plug 2 is opened by the drain plug controller 50 and a predetermined drain time elapses after the drain plug 2 is opened, the main unit controller 40 opens the on-off valve 55 and the cleaning liquid generation unit 3 side The flow path of the switching solenoid valve 91 is switched so that the hot and cold water can be supplied to only. Then, when the tap water pressure supplies the supply water from the water supply pipe 63 to the water heater 6 and the water supply sensor (not shown) detects a water amount of a predetermined water amount or more, the water heater controller 60 ignites the gas burner to perform the hot water supply operation. Start it. When the hot water supply operation is started, the water amount adjusting valve 85 and the hot water amount adjustment are adjusted so that the temperature of the hot water detected by the temperature sensor 75 becomes a predetermined temperature and the hot water amount becomes an initial value registered in the memory. The degree of opening of the valve 86 is adjusted to open the first and second detergent valves 42a and 42b. Thereby, the detergent and the hot and cold water are supplied to the detergent mixing unit 51 to generate the cleaning liquid, and the cleaning liquid is sprayed from the cleaning nozzle 7 into the bathtub 1 at the set flow rate of the initial value (steps ST21 to ST25).

  If the injection position of the cleaning liquid injected from the cleaning nozzle 7 does not coincide with the area where the draft line when pouring hot and cold water of the assumed standard hot water amount and the inner wall surface of the bathtub 1 come into contact, Embodiment 1 Similarly, the builder operates the UP / DOWN key of the cleaning course setting switch 107 of the remote controller R to increase or decrease the set value of the total flow rate of the water amount sensor 83 and the hot water amount sensor 84. Then, the flow rate of the cleaning liquid is changed in a predetermined range in accordance with the operation of changing the flow rate in the cleaning course setting switch 107. Then, it is confirmed that the cleaning solution is mainly sprayed to the area where the draft line when pouring hot and cold water of the assumed standard hot water amount and the inner wall surface of the bathtub 1 come into contact with each other. When the cleaning / pouring switch 104 of the remote controller R is pressed again, the set value is registered in the memory in order to set the changed flow rate as a new set flow rate during the cleaning operation. Further, the on-off valve 55 and the first and second detergent valves 42a and 42b are closed to end the operation of the flow rate setting mode (steps ST26 to ST32). The subsequent operation is the same as that of the first embodiment, and the operation in the cleaning test run mode and the pouring test mode is sequentially executed (steps ST33 to ST37).

  According to the above-mentioned bathtub cleaning apparatus, the builder or the like manually operates the remote control R to control the opening of the water amount adjusting valve 85 and the hot water amount adjusting valve 86 similarly to the first embodiment to control the flow rate of the washing liquid. Since the appropriate set flow rate can be registered in the memory, the injection position of the cleaning liquid can be changed to a position appropriate for the cleaning operation while confirming the injection position of the cleaning liquid at the installation site of the bathtub cleaning device.

  Further, according to the above-mentioned bathtub cleaning apparatus, as in the first embodiment, confirmation and change of the injection position of the cleaning liquid in the operation in the flow rate setting mode without performing all steps of the pouring operation and the cleaning operation In the bathtub cleaning device in which the injection position of the cleaning solution is preset, it is assumed that a standard hot water amount is poured into the bathtub 1, the use condition of the bathtub 1 and the bathtub cleaning device at the installation site of the bathtub cleaning device. Depending on the installation environment, the cleaning solution can be jetted at an appropriate set flow rate. If the operation in the cleaning trial operation mode is continuously performed after the operation in the flow rate setting mode, the setting flow can be surely set because the change of the set flow rate is not forgotten.

  Therefore, as in the first embodiment, the bathtub cleaning apparatus according to the present embodiment can obtain stable cleaning performance even when the installation environment of the bathtub cleaning apparatus is different as well as the usage condition of the bathtub 1. An apparatus can be provided.

(Other embodiments)
(1) In the first embodiment, the flow rate of the cleaning liquid injected from the cleaning nozzle is adjusted by controlling the drive of the pump with the preset value set in advance, but a flow sensor is provided to adjust the flow rate of the cleaning liquid You may
(2) In the above embodiments, the switch of the remote control is used as the manual flow rate setting unit, but the flow rate may be set by a DIP switch or the like.
(3) In each of the above embodiments, a bathtub cleaning apparatus in which the main body unit and the cleaning solution generation unit are separately provided is used, but a bathtub cleaning apparatus in which these are integrated according to the size of the bathroom or bathtub May be used.
(4) In any of the above embodiments, as the set flow rate in the cleaning operation, a single area where the draft line when pouring hot water of standard hot water and the inner wall surface of the bath are in contact with the injection position of the cleaning liquid. Although the set flow rate is set, a different set flow rate may be set according to the use condition of the bath, or a plurality of set flow rates may be set to jet the cleaning liquid to different injection positions during the cleaning operation. .
(5) In the above embodiment, although the bathtub cleaning apparatus provided with a hot water filling water supply pipe is used, the bathtub cleaning apparatus performs only the cleaning operation without providing the hot water filling water supply pipe. May be
(6) In the above embodiments, the cleaning liquid containing the detergent is sprayed in the operation of the flow rate setting mode, but only the hot water may be sprayed to set the set flow rate.
(7) In each of the above embodiments, the test operation mode including the operation in the cleaning test operation mode and the filling test operation mode is executed. However, only the operation in the flow rate setting mode may be performed. Further, the operation in the cleaning trial operation mode may be performed before the operation in the flow rate setting mode. However, by continuously executing the operation in the cleaning trial operation mode after the operation in the flow rate setting mode, the operation in the cleaning trial operation mode can be performed at the set flow rate, which is more preferable.

1 bathtub 2 drain valve 4 main unit 6 water heater (heat source unit)
7 Washing nozzle 40 Main unit controller 48 Pump 51 Detergent mixing section 85 Water volume adjustment valve 86 Water volume adjustment valve R Remote control (manual flow rate setting unit)

Claims (3)

A detergent mixing unit that mixes the detergent supplied from the detergent tank with the hot water supplied from the heat source machine to generate a cleaning solution;
A cleaning nozzle that sprays the cleaning liquid generated by the detergent mixing unit into a bath;
A flow rate adjustment unit configured to adjust the flow rate of the cleaning liquid injected from the cleaning nozzle to a predetermined set flow rate;
A manual flow rate setting unit for manually setting a set flow rate of the cleaning liquid to be jetted from the cleaning nozzle;
And a storage unit for storing, as a new set flow rate, the set flow rate of the cleaning liquid after the setting when the set flow rate of the cleaning liquid to be sprayed from the cleaning nozzle is set by the manual flow rate setting unit. The bathtub cleaning device according to claim 1 is configured to be able to execute an operation in a flow rate setting mode for setting a set flow rate of the cleaning solution to be sprayed from the cleaning nozzle during the cleaning operation,
A bathtub cleaning device in which the set flow rate of the cleaning liquid to be jetted from the cleaning nozzle is set by the manual flow rate setting unit when operating in the flow rate setting mode. The bathtub cleaning device according to claim 2 is
A bathtub cleaning device configured to be able to perform operation in the cleaning commissioning mode continuously before or after operation in the flow rate setting mode.

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