JP4895498B2 - Bathroom cleaning system - Google Patents

Description

  The present invention relates to a system for automatically spraying hot water in a bathroom and washing the bathroom.

In the bathroom, sebum from the human body and waste products from the skin remain, and because of the high humidity, the environment is prone to mold. Therefore, as shown in Patent Documents 1 and 2, bathroom cleaning systems have been developed that have a configuration in which a spray nozzle is installed on the ceiling of a bathroom and this spray nozzle is connected to a hot water supply device via a spray path. In this system, when a user presses a start button for bathroom cleaning, hot water from a hot water supply device is supplied to a spray nozzle to clean the bathroom.
JP-A-8-209957 Japanese Utility Model Publication No. 7-27463

  However, in the bathroom cleaning systems of Patent Documents 1 and 2, since the hot water is sprayed only when the start button is pressed, the optimal cleaning timing may be lost. In other words, if you wash after bathing, the time when human sebum and skin waste are left in the bathroom is short, so it is the optimal timing to suppress the occurrence of mold, but forget to press the start button at this timing There were many things.

The present invention has been made to solve the above problems, and is provided in a spraying means provided on the ceiling of a bathroom and a bath tub side water pipe connected to the bathtub via a circulation fitting, and the water level of the bathtub is set. A water level sensor for detecting water, and a spray control means, wherein the spray control means is configured such that when the manual stopper of the bathtub is removed and the detected water level of the water level sensor falls below a threshold value, the remaining hot water in the bathtub is substantially zero. The gist is to determine that there is water and supply hot water to the spraying means.

According to the above configuration, when the bathtub is unplugged after bathing and the hot water in the bathtub becomes substantially zero, by spraying hot water into the bathroom, sebum and skin waste from the human body left in the bathroom can be removed. Can be washed away. The time that sebum and skin waste are left in the bathroom is very short and can suppress the occurrence of mold.
Since the hot water spray is automatically performed in response to the water level detection information of the bathtub from the water level sensor , the hot water can be reliably sprayed at the optimum timing.
And since automatic washing of a bathroom is started using the detection information of the water level sensor originally equipped in the bathtub with a bath chase function, cost reduction can be aimed at.

Preferably, the spray control means supplies water after supplying hot water to the spray means.
According to this, by spraying water after spraying hot water, the temperature and humidity of the bathroom after washing can be lowered, and the generation of mold can be further suppressed.

Preferably, the spray control means is
(A) a hot water supply device,
(A) a downstream pipe connected to the spraying means, and an upstream pipe branched into a hot water spray branch pipe and a water spray branch pipe;
(C) a hot water spray valve provided in the branch pipe for spraying hot water;
(D) a water spray valve provided in the branch pipe for water spray;
(E) When the water level detected by the water level sensor falls below a threshold value, the hot water supply device is operated with the water spray valve closed, and the hot water spray valve is opened to spray the hot water from the hot water supply device. Water is supplied to the spraying means via a branch pipe section for spraying hot water and a downstream pipe section, and then the water spray valve is closed and the water spray valve is opened to supply water to the branch pipe for water spraying of the spray pipe. A control means for supplying to the spraying means via the part and the downstream pipe part,
It has.
Preferably, the hot water supply apparatus includes a combustion means, a heat exchange means for receiving heat from the combustion means, a hot water supply side water pipe passing through the heat exchange means, and the bath retreat side water pipe.
The hot water supply side water pipe has a heat receiving pipe part passing through the heat exchange means, a water supply pipe part connected to the upstream end of the heat receiving pipe part, and a hot water supply pipe part connected to the downstream end of the heat receiving pipe part,
The bath retreat side water pipe includes a heat receiving pipe section passing through the heat exchanging means, a return pipe section connecting the upstream end of the heat receiving pipe section and the bathtub, and an outgoing pipe section connecting the downstream end of the heat receiving pipe section and the bathtub. And
The upstream end of the hot water spraying branch pipe part is connected to the hot water supply pipe part, and the upstream end of the water spraying branch pipe part is connected to the water supply pipe part.

Preferably, water filling pipe is provided between the hot water supply pipe portion and the bath additionally焚側water passage pipe of the hot water supply-side water passage pipe, hot water filling valve is provided in the water filling tube, the control means, the When the detected water level of the water level sensor falls below a threshold value, the hot water supply device is operated prior to the bathroom cleaning, and the hot water supply valve is opened to clean the bath tub side water pipe.
According to this, the bottom of the bathtub becomes dirty after washing the bath-side water pipe, but the bathtub can be washed by spraying hot water thereafter.

Preferably, the spray control means is
(A) a hot water supply device,
(A) a spraying path for connecting the hot water supply device and the spraying means;
(C) valve means provided in the spraying path;
(D) When the detected water level of the water level sensor falls below a threshold value, the hot water supply device is operated and the valve means is opened to supply hot water from the hot water supply device to the spraying means via the spraying path; Then, the control means for supplying water to the spraying means through the spraying path by stopping the hot water supply device with the valve means open.
  It has.

  According to the present invention, hot water spraying can be reliably performed at an optimal timing in response to bathtub drainage after bathing, and bathroom washing can be performed.

  Hereinafter, a bathroom cleaning system according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the bathroom cleaning system includes a hot water supply device 1. The hot water supply device 1 is a hot water supply device with a bath replenishment function of a 2-can 2-water channel type, and a hot water supply side can 10 and a retreat side can 20 are accommodated in a housing. In the hot water supply side can 10, a combustion part 11 made of a gas burner and a heat exchange part 12 that receives heat from the combustion part 11 are accommodated. Similarly, in the remedy-side can 20, a combustion part 21 made of a gas burner and a heat exchange part 22 that receives heat from the combustion part 21 are accommodated. The two combustion sections 11 and 21 constitute the combustion means of the hot water supply apparatus 1, and the two heat exchange sections 12 and 22 constitute the heat exchange means of the hot water supply apparatus 1.

  Further, the hot water supply device 1 is equipped with a hot water supply side water conduit 13 and a bath chase side water conduit 23. The hot water supply side water pipe 13 includes a heat receiving pipe section 13a passing through the heat exchange section 12, a water supply pipe section 13b connected to the upstream end of the heat receiving pipe section 13a, and a hot water supply pipe connected to the downstream end of the heat receiving pipe section 13a. Part 13c. A bypass pipe 13d is connected between the water supply pipe section 13b and the hot water supply pipe section 13c.

  The retreat side water pipe 23 includes a heat receiving pipe part 23a passing through the heat exchange part 22, a return pipe part 23b connected to the upstream end of the heat receiving pipe part 23a, and an outgoing path connected to the downstream end of the heat receiving pipe part 23a. And a tube portion 23c. The upstream end of the return pipe 23b and the downstream end of the forward pipe 23c of the tracking side water pipe 23 are connected to the bathtub 50 via a circulation fitting 50a.

  The gas supply means 30 to the combustion sections 11 and 21 includes a main pipe 31, a hot water supply side branch pipe 32a branched from the main pipe 31, a tracking side branch pipe 32b, and downstream ends of the branch pipes 32a and 32b. Nozzle blocks 33a and 33b that are connected to face the combustion sections 11 and 21 and inject gas, respectively, a main electromagnetic valve 34 and an electromagnetic proportional valve 35 provided on the main pipe 31, and branch pipes 32a and 32b, respectively. Branch electromagnetic valves 36a and 36b. In addition, combustion air is sent from the common fan 38 to the combustion sections 11 and 21.

  In the water supply pipe portion 13b of the hot water supply side water pipe 13, the water filter / drain plug 41, the flow sensor 42, the flow rate control valve 43 for controlling the feed water flow rate, and the bypass flow rate are controlled in order from the upstream side to the downstream side. A bypass control valve 44 is provided. In addition, the hot water supply pipe section 13c is provided with an outlet temperature sensor 45 upstream of the bypass pipe 13d, a hot water supply temperature sensor 46 provided downstream of the bypass pipe 13d, and an overpressure safety valve near the downstream end. 47, a water hammer buffer valve 48 is provided.

  A water level sensor 51, a pump 52, a water flow switch 53, and a bath temperature sensor including pressure sensors are arranged in order from the upstream side to the downstream side (the heat exchange unit 22 side). 54 is provided.

  A hot water filling pipe 60 is connected between the hot water supply pipe 13c of the hot water supply pipe 13 and the return pipe 23b of the tracking side water pipe 23. The hot water filling pipe 60 is provided with a hot water solenoid valve 61 (hot water filling valve) and two check valves 62 and 63 that allow only the flow toward the backward pipe part 23b in order toward the backward pipe part 23b. Yes.

  The hot water supply apparatus has a controller 70 (control means) (not shown). The known control by the controller 70 will be briefly described. First, hot water supply control will be described. When the hot water tap provided at the downstream end of the hot water supply pipe portion 13c is opened, if the flow rate sensor 42 detects a flow rate equal to or higher than the threshold value, the gas is supplied to the combustion portion 11 and the ignition mechanism is operated to start combustion. The feedback control based on the temperature detected by the hot water supply temperature sensor 46 and the set temperature, and the feedforward control based on the detected flow rate, the feed water temperature, the set temperature, etc., by the flow rate sensor 42, the opening degree control of the electromagnetic proportional valve 35, and a plurality of branches The opening / closing control of the electromagnetic valve 32a is performed to control the amount of combustion heat.

  At the time of hot water filling, the hot water solenoid valve 61 is opened, the hot water supply device 1 is operated, and combustion control is performed by the same control as hot water supply, and hot water from the heat exchange part 12 is supplied to the hot water supply pipe part 13c, the hot water filling pipe 60, It is supplied to the bathtub 50 through the remedy side water pipe 23. When the water level of the bathtub 50 reaches the set level by the water level sensor 51, the hot water filling operation is stopped.

  At the time of tracking, the pump 52 is driven in response to the ON operation of the tracking button. When the water flow generated by the pump drive 52 is detected by the water flow sensor 53, the branching electromagnetic valve 36b is opened to supply gas to the combustion unit 21 and the ignition mechanism is operated to start the tracking. Then, the chasing is stopped when the temperature detected by the bath temperature sensor 54 reaches the set temperature.

  Next, the configuration for washing the bathroom will be described in detail. A spray nozzle 81 (spreading means) capable of spraying in many directions is attached to the ceiling of the bathroom 80. The spray nozzle 81 is connected to the downstream end of the spray pipe 82 (spreading path). The upstream side of the spray pipe 82 is branched into two: a hot water spray branch pipe part 82a and a water spray branch pipe part 82b.

  The upstream end of the branch pipe portion 82a for spraying hot water is connected between the upstream end of the hot water filling pipe 60 and the hot water solenoid valve 61 (hot water filling valve), and the hot water filling pipe 60 is connected to the hot water supply pipe portion 13c. It is connected. In the hot water filling pipe 60, a hot water amount sensor 83 is provided between the upstream end thereof and the hot water spraying branch pipe portion 82a. The hot water spraying branch pipe portion 82a is provided with a hot water spraying electromagnetic valve 84 (hot water spraying valve, valve means) and a check valve 85 from the upstream side toward the downstream side.

  The upstream end of the water spraying branch pipe part 82 b is connected between the water filter / drain plug 41 and the flow rate sensor 42 in the water supply pipe part 13 b of the hot water supply side water pipe 13. A water spraying electromagnetic valve 86 (water spraying valve) and a check valve 87 are provided in the water spraying branch pipe part 82b. The spray pipe 82 is provided with a water drain plug 88. The hot water supply device 1, the controller 70, the spray pipe 82, and the electromagnetic valves 84 and 86 constitute spray control means.

  In the above configuration, when the user unplugs the bathtub 50 after bathing, the hot water in the bathtub 50 is discharged. The controller 70 executes a spraying control routine shown in FIG. In step 100, the water level sensor 51 waits for the detected water level of the bathtub 50 to fall below the threshold value, and when it falls, it is determined that the remaining hot water in the bathtub 50 has reached substantially zero, and the process proceeds to step 101, where The tracking side water pipe 23 is cleaned for a predetermined time. That is, the above-described hot water-filled electromagnetic valve 61 is opened, and 60 ° C. (temperature effective for sterilization) is poured from the hot water supply device 1. As a result, hot water of a predetermined temperature is discharged from the heat exchanging section 12 through the hot water supply pipe section 13 c and the hot water filling pipe 60 through the tracking side water pipe 23 and discharged to the bathtub 50. Thereby, the sebum of the human body and the waste products of the skin can be removed from the memorial side water conduit 23.

Following the cleaning of the memorial-side water pipe 23 in step 101, a notice of bathroom cleaning after a predetermined time is given by voice (102). For example, “I will take a shower in the bathroom after 1 minute”. This prompts a person in the bathroom 80 to go out of the bathroom 80. This audio notice takes into account that many people wipe their bodies in a warm bathroom instead of a dressing room (toilet) in winter. Actually, even if you take a bath with your parents and children, the parents finish wiping their bodies by wiping their child's body for a few minutes until the hot water runs out after the bathtub 50 is removed. A notice is given.
After waiting for one minute after the notice (step 103), the bathroom 80 is cleaned.

  The bathroom 80 is cleaned in two stages. First, spraying hot water into the bathroom 80 is performed for a predetermined time (step 104). More specifically, the hot water supply device 1 is operated under the same control as hot water supply and hot water filling, hot water of a predetermined temperature (for example, 40 ° C.) is discharged from the hot water supply pipe portion 13c, and the water spraying electromagnetic valve 86 is kept closed. Open the spray solenoid valve 84. As a result, 40 ° C. hot water passes from the hot water supply pipe part 13 c through the hot water spray branch pipe part 82 a, reaches the spray nozzle 81 through the spray pipe 82, and is sprayed from the spray nozzle 81 to the inner wall of the bathroom 80 and the bathtub 50. Thereby, human body sebum and skin waste adhered to the inner wall of the bathroom 80 and the bathtub 50 are washed away. The temperature of the hot water is high enough to wash away sebum and skin waste, but it should be safe even if it is used by anyone.

  Next, water is sprayed in the bathroom 80 for a predetermined time (step 105). More specifically, the hot water supply operation of the hot water supply device 1 is stopped, the water spraying electromagnetic valve 86 is opened, and the hot water spraying electromagnetic valve 84 is closed. Thereby, the water from the water supply pipe part 13b passes through the branch pipe part 82b for water spraying, passes through the spray pipe 82, reaches the spray nozzle 81, and is sprayed from the spray nozzle 81 to the inner wall of the bathroom 80 and the bathtub 50. Thereby, the inner wall of the bathroom 80 and the bathtub 50 are cooled.

As described above, the cleaning of the bathroom 80 is completed. This washing of the bathroom 80 is automatically performed in conjunction with draining of the bathtub 50 regardless of the user's button operation, so that the bathroom 80 can be reliably washed at the optimal timing for mold control. it can.
In addition, since the hot water is sprayed after the remedy side water pipe 23 is washed, sebum and skin waste that have come out of the remedy side water pipe 23 and accumulated at the bottom of the bathtub 50 can be washed away with the sprinkled water. . Moreover, by spraying water after spraying hot water, the bathroom 80 can be made low temperature and low humidity, and generation | occurrence | production of mold | fungi can be suppressed further. Therefore, it is not necessary to dry the bathroom after washing. In addition, even when it is a case where a bathroom is dried with a bathroom dryer, this drying time can be shortened.
Further, the user disconnect the plug of the bathtub 50, the hot water bath 50 performs bathroom cleaning immediately after disappeared substantially, in a state plugs was pulled for always tub 50 at the time of the bathroom cleaning, bathroom wall by bathroom cleaning Even if dust or hair attached to the tub 50 flows into the bathtub 50, it does not collect in the bathtub 50 and can be discharged from the bathtub 50.

By the way, when the water level of the bathtub 50 is lowered by removing the stopper, the detected water level of the water level sensor 51 is also lowered. However, after the water level of the bathtub 50 falls below the circulation fitting 50a, the actual water level is further lowered. After that, the detected water level of the bathtub 50 maintains a constant value. Therefore, the threshold value compared with the detected water level in the above embodiment is set to a value slightly higher than the detected water level at the inflection point where the decrease in the detected water level ends and becomes a constant value.
As another aspect, the bath water level may be determined to be substantially zero when the inflection point is detected. Alternatively, the bath water level may be determined to be substantially zero when a certain value is maintained for a predetermined time, for example, several seconds after the detected water level is lowered.

As yet another aspect, a predetermined time, for example, a few minutes has elapsed from the time when the detected water level falls below the threshold (or the time when the inflection point is detected or the time when the detected water level is maintained at a constant value for a predetermined time). Sometimes it may be determined that the bath water level is substantially zero and then the bathroom is washed.

  Even if the branch pipe portion 82b for water spraying and the water spraying electromagnetic valve 86 are omitted, water spraying can be performed. In this case, hot water spraying and subsequent water spraying can be performed by switching the hot water supply device 1 from the combustion state to the non-combustion state with the hot water spraying electromagnetic valve 84 open.

The present invention is not limited to the above-described embodiments, and various aspects are possible. For example, a hot water supply apparatus that performs hot water supply and renewal may have a common combustion means and heat exchange means.
There may be a plurality of spray nozzles or a sprinkler system.

It is the schematic of the bathroom washing system which makes one Embodiment of this invention. It is a flowchart which shows the control in the system.

Explanation of symbols

1 Hot water supply apparatus 11, 21 Combustion section (combustion means)
12, 22 Heat exchange section (heat exchange means)
13 Hot water supply side water pipe 13a Heat receiving pipe part 13b Water supply pipe part 13c Hot water supply pipe part 23 Bath tracking side water pipe 23a Heat receiving pipe part 23b Return pipe part 23c Outward pipe part 51 Water level sensor 60 Hot water pipe 61 Hot water solenoid valve (hot water Tension valve)
70 controller (control means)
80 Bathroom 81 Spray nozzle (spraying means)
82 Spreading pipe (spraying route)
82a Branch pipe part for hot water spraying 82b Branch pipe part for water spraying 84 Hot water spraying solenoid valve (hot water spraying valve, valve means)
86 Water spray solenoid valve (water spray valve)

Claims (5)

Spraying means provided on the ceiling of the bathroom;
A water level sensor for detecting the water level of the bathtub, provided in a bath tub side water pipe connected to the bathtub via a circulation fitting;
When the manual stopper of the bathtub is removed and the detected water level of the water level sensor falls below the threshold value, it is determined that the remaining hot water in the bathtub is substantially zero, and the hot water is supplied to the spraying means based on the determination of zero remaining hot water. Spraying means for spraying hot water into the bathroom from the spraying means and then supplying water to the spraying means and spraying water from the spraying means into the bathroom, thereby reducing the temperature and humidity of the bathroom When,
Bei to give a,
Furthermore, prior to the hot water spraying, the spraying control means notifies the bathroom cleaning after a predetermined time, and executes the hot water spraying after the predetermined time has elapsed . The spray control means is
(A) a hot water supply device,
(A) a downstream pipe connected to the spraying means, and an upstream pipe branched into a hot water spray branch pipe and a water spray branch pipe;
(C) a hot water spray valve provided in the branch pipe for spraying hot water;
(D) a water spray valve provided in the branch pipe for water spray;
( E ) When the detected water level of the water level sensor falls below the threshold value, the remaining hot water is determined to be zero, and based on this determination, the bathroom cleaning is notified, and the water heater is operated with the water spray valve closed. And opening the hot water spraying valve to supply hot water from the hot water supply device to the spraying means through the hot water spraying branch pipe part and the downstream pipe part of the spraying pipe, and then closing the hot water spraying valve. Control means for supplying water to the spraying means through the branch pipe part for water spraying and the downstream pipe part of the spraying pipe by opening the water spraying valve;
The bathroom cleaning system according to claim 1, further comprising: The hot water supply apparatus includes a combustion means, a heat exchange means for receiving heat from the combustion means, a hot water supply side water pipe passing through the heat exchange means, and the bath retreat side water pipe.
The hot water supply side water pipe has a heat receiving pipe part passing through the heat exchange means, a water supply pipe part connected to the upstream end of the heat receiving pipe part, and a hot water supply pipe part connected to the downstream end of the heat receiving pipe part,
The bath retreat side water pipe includes a heat receiving pipe section passing through the heat exchanging means, a return pipe section connecting the upstream end of the heat receiving pipe section and the bathtub, and an outgoing pipe section connecting the downstream end of the heat receiving pipe section and the bathtub. And
The upstream end of the branch pipe part for spraying hot water is connected to the hot water supply pipe part, and the upstream end of the branch pipe part for spraying water is connected to the water supply pipe part. Bathroom cleaning system. Water filling pipe is provided between the hot water supply pipe portion and the bath additionally焚側water passage pipe of the hot water supply-side water passage pipe, hot water filling valve is provided in the water filling tube, the control means, the remaining hot water zero based on the determination, by opening the water filling valve actuates the water heater, no line cleaning of the bath additionally焚側water passage tube, then according to claim 3, wherein the informing the bathroom cleaning Bathroom wash system. The spray control means is
(A) a hot water supply device,
(A) a spraying path for connecting the hot water supply device and the spraying means;
(C) valve means provided in the spraying path;
( D ) When the detected water level of the water level sensor falls below a threshold value, the remaining hot water is determined to be zero, and based on this determination, the bathroom cleaning is notified, the hot water supply device is activated, and the valve means is opened. Hot water from the hot water supply apparatus is supplied to the spraying means through the spraying path, and then the water supply apparatus is stopped while the valve means is open, thereby supplying water to the spraying means through the spraying path. Control means;
The bathroom cleaning system according to claim 1, further comprising:

Images