JP2018175000A - Bathtub cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathtub cleaning device which is easy to install regardless of the installation location, can exhibit stable cleaning performance, is low in cost, saves energy, and is excellent in maintainability. SOLUTION: A cleaning liquid generation unit 3 having a detergent tank 41 for storing detergent and a detergent mixing unit 51 for mixing detergent supplied from the detergent tank and hot water supplied from a heat source machine 6 is installed in a bathroom. On the other hand, a main body unit 4 having a pump 48 for injecting and stopping the cleaning liquid from the cleaning nozzle 7 and adjusting the flow rate of the cleaning liquid to be injected from the cleaning nozzle 7 is installed behind the ceiling of the bathroom, and the cleaning liquid generation unit 3 and the cleaning liquid generation unit 3 are installed. The main body unit 4 is connected to the hot water pipe 67. [Selection diagram] Fig. 1

Description

  The present invention relates to a bathtub cleaning apparatus that automatically cleans a bathtub.

  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 device is proposed in which a bathtub cleaning unit is provided in a bathroom to generate a cleaning solution by mixing hot water and detergent supplied from a heat source machine to generate a cleaning solution, and to spray hot water and cleaning solution from the cleaning nozzle toward the bathtub. (Patent Document 1).

  However, when the on-off valve for injecting and stopping the cleaning liquid and the like from the cleaning nozzle and all the components necessary for generating the cleaning liquid are provided in a humid bathroom, a complicated waterproof structure is required. Moreover, in patent document 1, although installed in the state which exposed the bathtub cleaning unit above the upper edge surface of a bathtub, the design wall of a bath or a bathtub is considered and the bathtub cleaning unit is a structure wall of a bathtub Installation work is difficult when installing in a narrow space such as between a bathroom and a bathroom wall.

  On the other hand, the present applicant installs a detergent tank and a detergent mixing unit for mixing detergent and hot water in a bathroom, and installs a flow control valve for supplying hot and cold water from the heat source to the detergent mixing unit. The cleaning device was previously proposed (Patent Document 2). According to this bathtub cleaning apparatus, the indoor unit installed in the bathroom can be miniaturized, so installation work in a small space can be relatively easily performed.

  However, when the flow control valve is installed outside the bathroom, the distance from the flow control valve to the detergent mixing unit varies depending on the installation location. For example, in patent document 2, although the flow control valve is provided in the vicinity of a heat source machine, the installation place of a heat source machine changes with dwellings or facilities. Therefore, the piping length which connects an indoor unit and an outdoor unit changes with the environments where a flow control valve is installed. As a result, even if the same indoor unit and outdoor unit are used, the flow rate of hot and cold water fluctuates, so that the cleaning performance is likely to vary, and the desired cleaning effect may not be obtained. It is also conceivable to provide a hot water supply means having an excessive hot water supply capacity so as to be able to cope with both long and short piping in order to suppress fluctuations in the flow rate of hot and cold water due to differences in piping length as described above. .

JP, 2001-61694, A JP, 2009-268576, A

  The present invention solves the above-mentioned problems, and the object of the present invention is that installation work is easy regardless of the installation place, the degree of freedom in design of a bathroom and a tub is high, and stable cleaning performance is obtained. It is an object of the present invention to provide a low cost, energy saving and maintainable bath cleaning device.

According to the invention
A detergent tank provided in a bathroom and storing a detergent, and a cleaning liquid production unit having a detergent mixing unit that mixes the detergent supplied from the detergent tank and the hot water supplied from the heat source machine to generate a cleaning liquid;
A cleaning pipe for supplying a cleaning solution to a cleaning nozzle for injecting a cleaning solution from the cleaning solution generation unit into the bath;
A main body unit provided on a ceiling of a bathroom and provided with a cleaning liquid injection section for injecting and stopping the cleaning liquid from the cleaning nozzle, and a flow rate adjustment section for adjusting the flow rate of the cleaning liquid ejected from the cleaning nozzle;
There is provided a bathtub cleaning apparatus comprising: a hot water pipe for supplying hot and cold water from a main body unit installed in the ceiling of a bathroom to a cleaning fluid generation unit installed in the bathroom.

  According to the above-mentioned bathtub cleaning apparatus, the cleaning liquid production unit having the detergent tank and the like is installed in the bathroom, and the main body unit having the cleaning fluid injection part and the like is installed on the ceiling of the bathroom. Also, the cleaning solution generation unit can be easily installed. Also, the main unit can be installed on the ceiling of the bathroom according to the construction work of the bathroom. Thereby, the workability in the installation work can be significantly improved. In addition, since only the cleaning liquid generation unit is installed in the bathroom, it is not necessary to secure a large installation space. This makes it possible to design a bath or bathroom with a high degree of freedom.

  Further, according to the above-mentioned bathtub cleaning device, the cleaning solution generation unit is installed in the bathroom, and the main unit is installed on the ceiling of the same bathroom, so even if the installation location is different, the cleaning solution generation unit and the main unit There is no big difference in the distance between the two and it is possible to use hot water pipes of approximately the same length. Further, since the cleaning liquid generation unit is installed in the bathroom, the distance between the cleaning liquid generation unit and the cleaning nozzle is also substantially fixed regardless of the installation location, and cleaning pipes of approximately the same length can be used. Therefore, even if the installation location is different, the variation in the flow rate of hot and cold water due to the length of the pipe is small, and the cleaning solution can be injected into the bath at the desired flow rate. Thereby, the dispersion | variation in the washing | cleaning performance by an installation place can be reduced.

  Further, according to the above-mentioned bathtub cleaning device, since the cleaning liquid generation unit is installed in the bathroom and the main unit is installed on the ceiling of the bathroom, the head for approximately the height of the bathroom between the main unit and the cleaning nozzle Can make a difference. Therefore, hot water can be supplied to the washing nozzle from the main unit using a large head pressure. Therefore, the washing liquid can be sprayed into the bath at a flow rate sufficient for washing only with the tap water pressure of the tap water. In addition, when the cleaning solution is injected from the cleaning nozzle by the pump, it is not necessary to use a pump having a large hot water supply capability, and the pump can be operated with a low driving force during the cleaning operation. Thus, not only can the cost of the bathtub cleaning apparatus itself be reduced, but also the cleaning operation can be performed with low energy.

  Further, according to the above-mentioned bathtub cleaning device, since the cleaning liquid generation unit is installed in the bathroom and the main body unit is installed on the ceiling of the bathroom, it is in the hot water pipe connecting the main body unit and the cleaning liquid generation unit by the head difference. The residual water can be drained smoothly. Furthermore, since the main body unit is installed on the ceiling of the dry area rather than in the bathroom, heating means such as an electric heater can also be provided. Thereby, the maintainability for avoiding freezing can also be improved in winter.

Preferably, in the bathtub cleaning device,
The cleaning solution generation unit is provided in the inside space of the bath formed below the upper edge flange portion of the bath.

  According to the bathtub cleaning apparatus, since the bath and the cleaning liquid generation unit can be brought close to each other, the fluctuation of the flow rate of the cleaning liquid due to the piping length of the cleaning pipe from the cleaning liquid generation unit to the cleaning nozzle can be further suppressed. Thereby, the dispersion | variation in the washing | cleaning performance by an installation place can further be reduced.

Preferably, in the bathtub cleaning device,
The main body unit includes a hot water storage unit for storing hot water, and a pump which is disposed downstream of the hot water storage unit to spray and stop the washing liquid from the washing nozzle and to adjust the flow rate of the washing liquid to be jetted from the washing nozzle Equipped with

  According to the bathtub cleaning apparatus, since the main body unit includes the hot water storage portion for storing hot water, a larger head pressure can be used. As a result, it is possible to use a low-cost pump having a lower capacity for supplying hot water and to perform the cleaning operation with lower energy.

Preferably, in the bathtub cleaning device,
The hot water storage section has a spout space that separates the hot water supply pipe on the upstream side of the hot water storage section and the hot water supply pipe on the downstream side.

  According to the above-mentioned bathtub cleaning device, since the hot water storage section has the spout space that separates the hot water supply pipe on the upstream side and the hot water supply pipe on the downstream side, the tap water pressure of the fresh water and the heat source on the upstream side Even if fluctuations in the flow rate supplied from the machine occur, fluctuations in the flow rate of hot and cold water by the pump disposed downstream can be prevented. Thereby, the hot water can be more stably supplied from the main body unit to the cleaning liquid generation unit.

  As described above, according to the present invention, it is possible to provide a bathtub cleaning apparatus which is easy to install regardless of the installation location, has a high degree of freedom in the design of a bathroom and a bathtub, and provides stable cleaning performance. . Further, according to the present invention, it is possible to provide a bath cleaning device suitable for energy saving at low cost. Furthermore, according to the present invention, it is possible to provide a bath cleaning apparatus which is excellent in maintainability for avoiding freezing.

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 schematic configuration view showing a bathtub cleaning apparatus according to a second embodiment 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. A water heater controller 60 for controlling the operation of the water heater 6 is incorporated in the water heater 6, and various sensors such as a water supply sensor provided in the water supply pipe 63 and a water supply temperature sensor provided in the water heating pipe 66 The various control valves provided in the water supply pipe 63, the hot water supply pipe 66, and the gas supply pipe 78, the igniter, the power supply box, and the remote controller for the water heater are connected to the water heater controller 60. 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, and the downstream electromagnetic 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, thereby the hot water and cleaning liquid from the cleaning nozzle 7. Injection and shut down are performed. Further, by controlling the number of rotations of the pump 48, 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 pump 48 functions as a cleaning liquid injection unit and a flow rate adjustment unit that injects and stops the cleaning liquid from the cleaning nozzle 7 and adjusts the flow rate of the cleaning liquid ejected 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. In addition, 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, the antifreeze heaters 73, 74, 76, the temperature sensor 75, the low temperature sensing Electrodes in the temperature sensor 77, the solenoid valve 46 for water supply, the pump 48, the downstream solenoid valve 49, the solenoid valve 90 for hot water filling, and the hot water tank 47 are connected to the main unit controller 40 provided in the casing and electrical wiring. It is connected. Furthermore, the main unit controller 40 is connected to the cleaning unit controller 30, which will be described later, the remote controller R, and a power supply box (not shown) via electrical wiring.

  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 drain valve controller 50 and the main unit controller 40 via electrical wiring.

  A remote control R for filling operation and cleaning operation is disposed in the bathroom BR. 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.

  Next, the cleaning operation 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.

  For example, when the user turns on the washing switch 103 in a state where the operation of the operation switch of the remote controller for the water heater and the operation of the operation switch 101 of the remote controller R are performed after using the bathtub 1, the program for the standard mode Is activated, the drainage plug controller 50 opens the drainage plug 2 and the bath water in the bath 1 is drained. When a predetermined drainage time elapses after the drainage plug 2 is opened, the main unit controller 40 opens the water replenishment solenoid valve 46 so that the hot and cold water is supplied from the hot and cold water mixing unit 80 only to the main body unit 4 side. . 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 via the first temperature control water supply pipe 63a and the first and second hot and cold water supply pipes 66a and 66b.

  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 electromagnetic valve 46 for water replenishment is closed and the downstream electromagnetic valve 49 is opened to perform predetermined preliminary cleaning. The pump 48 is driven at a rotational speed at which the flow rate is obtained, and hot and cold water is supplied to the cleaning liquid generation unit 3 in the bathroom BR from the main unit 4 installed on the ceiling of the bathroom BR. As a result, a preliminary cleaning step is performed in which only the hot and cold water is sprayed from the cleaning nozzle 7 into the bath 1.

  When a predetermined pre-cleaning time has elapsed, the pump 48 is stopped and the downstream solenoid valve 49 is closed. Then, when a predetermined preliminary cleaning standby time has elapsed, the pump 48 is driven at a rotational speed at which a predetermined cleaning flow rate can be obtained, and the downstream side solenoid valve 49 and the first and second detergent valves 42a and 42b are opened. Let Thereby, the detergent and the hot water are supplied to the detergent mixing unit 51 to generate the cleaning liquid, and the cleaning step of spraying the cleaning liquid from the cleaning nozzle 7 into the bath 1 is performed.

  When the predetermined cleaning time has elapsed, the pump 48 is stopped, and the downstream solenoid valve 49 and the first and second detergent valves 42a and 42b are closed. Then, when a predetermined cleaning standby time has elapsed, the pump 48 is driven at a rotational speed at which a predetermined flow rate for rinsing can be obtained, and the downstream side solenoid valve 49 is opened. Thus, the rinse step is performed in the same manner as the pre-wash. Each of the washing and rinsing steps may be carried out a plurality of times, or only the washing and rinsing steps may be carried out without carrying out the preliminary washing.

  After the predetermined rinsing time has elapsed, the downstream side solenoid valve 49 is opened for a predetermined time, and the hot and cold water in the hot water tank 47 and the hot water pipe 67 is drained into the bath 1, and then the downstream electromagnetic valve 49 is closed. At the same time, the pump 48 is stopped to end the cleaning operation. When the possibility of freezing is low, the washing operation may be ended without draining the hot water in the hot water tank 47 and the hot water pipe 67.

  According to the above-mentioned bathtub cleaning device, the main unit 4 having the hot water tank 47 for storing hot water, various control valves such as the pump 48 for injecting and stopping the washing liquid and the downstream side solenoid valve 49, and various sensors such as the temperature sensor 75 Is installed in the ceiling of the bathroom BR, and only the cleaning solution generation unit 3 having the detergent tank 41 and the like is installed in the bathroom BR. Can be installed. Further, the main unit 4 can be installed on the ceiling of the bathroom BR in accordance with the construction work of the bathroom BR. Thereby, compared with the case where all the components of a bathtub cleaning apparatus are installed in bathroom BR, workability can be improved remarkably. Further, since the inside space 10 can be made smaller than the case where the main unit 4 is provided in the inside space 10, the bathroom BR and the bath 1 can be designed with a high degree of freedom.

  Further, according to the above-mentioned bathtub cleaning device, since the cleaning solution generation unit 3 is installed in the bathroom BR and the main unit 4 is installed on the ceiling of the same bathroom BR, the residence or facility where the bathtub cleaning device is installed There is no large difference in the distance between the cleaning liquid production unit 3 and the main body unit 4 even if it is different, and a hot and cold water pipe 67 having substantially the same length can be used. Further, since the cleaning liquid production unit 3 is installed in the bath space 10 in the bathroom BR, regardless of the installation location, the distance between the detergent mixing unit 51 and the cleaning nozzle 7 is also substantially fixed, and has substantially the same length. Can be used. Furthermore, according to the bathtub cleaning apparatus, the hot and cold water stored in the hot and cold water tank 47 is supplied to the detergent mixing unit 51 through the hot and cold water pipe 67 having substantially the same length by the pump 48 even if the installation place is different. Further, the cleaning liquid is sprayed from the cleaning nozzle 7 into the bath 1 through the cleaning pipe 43 having substantially the same length. That is, the hot and cold water supply paths for supplying hot and cold water from the hot and cold water tank 47 to the washing nozzle 7 are formed with substantially the same length regardless of the installation location. Moreover, since the second hot water supply pipe 66b on the upstream side and the third hot water supply pipe 66c on the downstream side are separated by the hot water tank 47 having the spout space, the tap water of the clean water supplied to the water heater 6 Even if the pressure fluctuates or the flow rate of the hot water supplied from the water heater 6 to the hot water tank 47 fluctuates, the flow rate of the hot 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, the variation in the flow rate of the cleaning solution is small, so that the variation in cleaning performance depending on the installation location can be reduced.

  Further, according to the above-mentioned bathtub cleaning apparatus, since the cleaning solution generation unit 3 is installed in the bathroom BR and the main unit 4 is installed on the ceiling of the bathroom BR, substantially between the main unit 4 and the cleaning nozzle 7 It is possible to generate a head difference by the height of the bathroom (for example, about 2 m). Therefore, hot water can be supplied from the pump 48 to the cleaning nozzle 7 using a large head pressure. For this reason, it is possible to use a pump 48 having a low hot water supply capacity. Moreover, as described above, since the hot water pipe 67 and the washing pipe 43 can be of approximately the same length even if the installation location is different, a pump having an excess hot water supply capacity is used assuming long and short of piping. There is no need to do it. Furthermore, the pump 48 can be operated with a low driving force during the cleaning operation. Thus, not only can the cost of the bathtub cleaning apparatus itself be reduced, but also the cleaning operation can be performed with low energy.

  Further, according to the above-mentioned bathtub cleaning device, since the cleaning solution generation unit 3 is installed in the bathroom BR and the main unit 4 is installed on the ceiling of the bathroom BR, residual water in the hot water pipe 67 is smoothed by the head difference. Can be drained. Furthermore, since the main unit 4 is installed on the ceiling of the dry area rather than in the bathroom BR, heating means such as the antifreeze heaters 73, 74, 76 can be provided. Thereby, in winter, the maintainability for avoiding freezing can be improved.

  Therefore, the bathtub cleaning device of the present embodiment is easy to install, regardless of the installation location, has a high degree of freedom in design of the bathroom BR and the bathtub 1, and stable cleaning performance can be obtained. In addition, the bath cleaning device of the present embodiment is low in cost and suitable not only for energy saving but also excellent in maintainability for avoiding freezing.

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 66b is provided with an on-off valve 55 as a cleaning liquid injection unit for injecting and stopping the cleaning liquid from the cleaning nozzle 7, and is provided to the upstream first temperature control water supply pipe 63a and the first hot water supply pipe 66a. The water amount adjusting valve 85 and the hot water amount adjusting valve 86 provided function as a flow rate adjusting unit for adjusting the flow rate of the cleaning liquid. The basic configuration other than these 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. 2 is a schematic block diagram of the bathtub cleaning device according to the present embodiment. As shown in FIG. 2, 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.

  As in the first embodiment, when the cleaning switch 103 is turned on by the remote control R, the drainage plug 2 is opened by the drainage plug controller 50 and the drainage plug 2 is cleaned as in the first embodiment. When a predetermined drainage time has elapsed since the opening of the main unit unit controller 40, the main unit controller 40 opens the on-off valve 55 and causes the flow of the switching solenoid valve 91 to supply hot and cold water only to the cleaning liquid generation unit 3 side. Switch the road. 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 degrees of the water amount adjustment valve 85 and the hot water amount adjustment valve 86 are adjusted so that a predetermined flow rate and temperature of hot and cold water for preliminary cleaning can be obtained. The subsequent operation is the same as that of the first embodiment, and the opening and closing of the on-off valve 55 and the opening of the water amount adjusting valve 85 and the hot water amount adjusting valve 86 are adjusted in the washing step and the rinsing step.

  According to the bathtub cleaning apparatus, as in the first embodiment, only the cleaning liquid generation unit 3 is installed in the bathroom BR, and the main unit 4 is installed on the ceiling of the bathroom BR. While being able to install 4 easily, the design of the bathroom BR and the bathtub 1 can be done with high freedom.

  Further, according to the bathtub cleaning apparatus, as in the first embodiment, the hot and cold water pipes 67 and the cleaning pipes 43 having substantially the same length can be used regardless of the installation place. Therefore, the variation in the cleaning performance depending on the installation place can be reduced.

  Further, according to the bathtub cleaning apparatus, hot water can be supplied from the main unit 4 to the cleaning nozzle 7 using the head difference, as in the first embodiment. For this reason, it is possible to inject hot water or cleaning fluid having a sufficient flow rate into the bathtub 1 only by the tap water pressure of the fresh water. As a result, not only the cost of the bathtub cleaning apparatus itself can be further reduced, but also the cleaning operation can be performed with lower energy.

  Moreover, according to the said bathtub washing | cleaning apparatus, the residual water of the hot water pipe 67 can be drained smoothly by head difference similarly to Embodiment 1. FIG. Furthermore, heating means such as antifreeze heaters 73, 74, 76 may be provided in the main unit 4 installed in the dry area. Therefore, in winter, the maintainability for avoiding freezing can be improved.

  Therefore, as in the first embodiment, the bath cleaning device of the present embodiment also has a high degree of freedom in the design of the bathroom BR and the bath 1 regardless of the installation location, and stable cleaning performance can be obtained. In addition, the bath cleaning device of the present embodiment is low in cost and suitable not only for energy saving but also excellent in maintainability for avoiding freezing.

  In all of the above-mentioned embodiments, although the bathtub cleaning device provided with the hot water filling water supply pipe 66d is used, it is a bathtub cleaning device that performs only the cleaning operation without providing the hot water filling water supply pipe 66d. It may be.

DESCRIPTION OF SYMBOLS 1 bathtub 2 drain valve 3 washing | cleaning-liquid production | generation unit 4 main body unit 7 washing | cleaning nozzle 10 space in a bathtub 41 detergent tank 43 washing pipe 47 hot water tank (hot water storage part)
Reference Signs List 48 pump 51 detergent mixing unit 55 on-off valve 67 hot and cold water pipe 85 water amount adjusting valve 86 water amount adjusting valve BR bathroom

Claims (4)

A detergent tank provided in a bathroom and storing a detergent, and a cleaning liquid production unit having a detergent mixing unit that mixes the detergent supplied from the detergent tank and the hot water supplied from the heat source machine to generate a cleaning liquid;
A cleaning pipe for supplying a cleaning solution to a cleaning nozzle for injecting a cleaning solution from the cleaning solution generation unit into the bath;
A main body unit provided on a ceiling of a bathroom and provided with a cleaning liquid injection section for injecting and stopping the cleaning liquid from the cleaning nozzle, and a flow rate adjustment section for adjusting the flow rate of the cleaning liquid ejected from the cleaning nozzle;
A bathtub cleaning apparatus comprising: a hot water pipe for supplying hot and cold water from a main body unit installed in the ceiling of a bathroom to a cleaning fluid generation unit installed in the bathroom. In the bathtub cleaning device according to claim 1,
The cleaning solution generation unit is a bathtub cleaning device provided in a bathtub inner space formed below the upper edge flange portion of the bathtub. In the bathtub cleaning device according to claim 1 or 2,
The main body unit includes a hot water storage unit for storing hot water, and a pump which is disposed downstream of the hot water storage unit to spray and stop the washing liquid from the washing nozzle and to adjust the flow rate of the washing liquid to be jetted from the washing nozzle A bathtub cleaning device comprising: In the bathtub cleaning device according to claim 3,
A hot water storage part is a bathtub cleaning apparatus which has a spout space which carries out riming of the hot water supply pipe on the upstream side of the hot water storage part and the hot water supply pipe on the downstream side.

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