JPH08318111A - Bathtub water purifier - Google Patents

Abstract

PURPOSE: To provide a bathtub water purifier in which the quantity of water for washing is reduced. CONSTITUTION: In this bathtub water purifier, a circulating path for connecting a suction port 1, a circulation pump 2 and a discharge port 3 is provided, and the circulation pump 2 is operated to suck bathtub water in a bathtub from the suction port 1 and discharge it from the discharge port 3, then the bathtub water is circulated and also is purified by a filter 4 arranged in the circulation path. The purifier is provided with an agitator 41 for agitating a filter medium 40 packed in the filter 4, a switching value 37 for switching between the connection of the filter 4 to the discharge port 3 and the connection of the filter 4 to a drain port 38 for draining water in the filter 4, and a washing control means for performing such control that the agitator 41 is operated with the circulation pump 2 being stopped, and after the lapse of prescribed time, the switching valve 37 is switched from the discharge port 3 side to the drain port 38 side with the agitator 41 being operated, and also the circulation pump 2 is operated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath water purifying device which purifies bath water in a bath to enable long-term use of bath water.

[0002]

2. Description of the Related Art In recent years, a bath water purifying device has been provided to enable bathing for 24 hours in a domestic bath. FIG. 1 shows an example of a bath water purifying apparatus developed by the present application, in which a suction port 1, a discharge port 3 and a filter 4 are provided in a circulation path connecting the suction port 1 and the discharge port 3. Is formed. In this case, the pump 2 is operated to suck the bath water in the bathtub from the suction port 1 and discharge it from the discharge port 3 so that the bath water is circulated, and during this circulation, the bath water is purified by the filter 4. I am going to do it.

The filter 4 is formed by filling a granular filter medium 40, and when it is used for a long period of time, dirt is deposited on the filter medium 40 and the filtering performance of the filter medium 40 deteriorates. It is necessary to wash the filter medium 40 in the unit 4. When cleaning the filter medium 40, the switching valve 37 formed of an electromagnetic valve is switched from the discharge port 3 side to the drain port 38 side, and the agitator 41 provided in the filter 4 is rotated while operating the pump 2 in this state. Drive the stirring blade 43
The filter material 40 is agitated to separate dirt from the filter material 40. During this time, since the bath water in the bathtub is sucked from the suction port 1 by the pump 2 and sent to the filter 4, the dirt separated from the filter medium 40 is washed off with the bath water and discharged from the drain port 38. Has become. When the cleaning is finished, the operation of the pump 2 is stopped and the rotational drive of the stirrer 41 is stopped, the switching valve 37 is switched from the drain port 38 side to the discharge port 3 side, and then the pump 2 is operated to perform normal purification. I am trying to get back into operation.

[0004]

However, when cleaning the inside of the filter 4 as described above, during the cleaning, the pump 2
Is activated to constantly supply the bath water to the filter 4 and the drain port 3
Since the water is discharged from No. 8, there is a problem that a large amount of water is required for cleaning. Further, if the operation of the device is stopped due to a power failure or the like while the inside of the filter 4 is being washed as described above, the switching valve 37 formed of an electromagnetic valve returns to the initial state and the discharge port 3 side is discharged from the discharge port 3 side.
It may switch to the side. When the switching valve 37 is switched from the drain port 38 side to the discharge port 3 side in this way, when the power is turned on again and the pump 2 is operated, the bath water in the filter 4 is discharged from the discharge port 3. There is a problem that the dirt separated by the cleaning of the inside of the filter 4 may be discharged into the bath because it is discharged into the bath.

The present invention has been made in view of the above points, and an object thereof is to provide a bath water purifying apparatus capable of reducing the amount of water for washing, and further, to generate by washing the inside of the filter. It is an object of the present invention to provide a bath water purifying device that can prevent the soiled dirt from being discharged into a bathtub.

[0006]

Therefore, the bath water purifying apparatus according to claim 1 of the present invention has a circulation path connecting the suction port 1, the circulation pump 2 and the discharge port 3, and operates the circulation pump 2. In the bath water purifying apparatus, the bath water in the bathtub 10 is sucked from the suction port 1 and discharged from the discharge port 3 to be circulated, and the bath water is purified by the filter 4 arranged in the circulation path. Either a stirrer 41 for stirring the filter medium 40 filled in the filter 4 and a connection between the filter 4 and the discharge port 3 or a connection between the filter 4 and a drain 38 for discharging the water in the filter 4. The switching valve 37 for switching and the agitator 41 in a state where the circulation pump 2 is stopped, and the switching valve 37 is operated from the discharge port 3 side while the agitator 41 is operated after a lapse of a predetermined time. Be made comprises a cleaning control means for controlling to actuate the circulation pump 2 with switch to 8 side is characterized in.

The bath water purifying apparatus according to a second aspect of the present invention has a circulation path connecting the suction port 1, the circulation pump 2 and the discharge port 3, and operates the circulation pump 2 to suck the bath water in the bathtub 10. In a bath water purifying device that sucks in from the mouth 1 and circulates by discharging from the discharge port 3 and purifies the bath water by the filter 4 arranged in the circulation path, the filter medium 40 filled in the filter 4 is agitated. The agitator 41 for switching, the switching valve 37 for switching between the connection between the filter 4 and the discharge port 3 or the connection between the filter 4 and the drain port 38 for discharging the water in the filter 4, and the filter 4
Is activated to stir the filter medium 40 in the filter 4 and then the switching valve 37 is switched from the discharge port 3 side to the drain port 38 side to discharge the water in the filter 4 from the drain port 38 during the cleaning process. When the operation of the bath water purifying apparatus is stopped, a valve detecting means for detecting the direction of connection of the switching valve 37 when the bath cleaning apparatus is activated again, and a direction in which the switching valve 37 is not connected to the drain port 38 side. In this case, a valve switching means for switching the direction of the switching valve 37 to the drain port 38 side is provided.

According to the third aspect of the present invention, in the above-described bath water purifying apparatus, the drainage pipe 56 is connected to the drainage port 38, and the drainage pipe 56 is arranged along the flange 17 of the bathtub 10. The drainage pipe 56 is housed in the pipe housing groove 12 recessed in the side end surface of the bath lid 11 on which the edge is placed.

[0009]

According to the first aspect of the present invention, the switching valve 37 is operated while the circulation pump 2 is stopped and the agitator 41 is operated after a predetermined time has elapsed.
Is equipped with cleaning control means for switching the discharge port 3 side to the drain port 38 side and controlling the circulation pump 2 to operate. The circulation pump 2 is stopped and the bath water is not supplied to the filter 4. In this state, the agitator 41 can be operated to wash the filter medium 40.

In the second aspect of the present invention, the filter 4 is operated to stir the filter medium 40 in the filter 4 and then the switching valve 37 is switched from the discharge port 3 side to the drain port 38 side so that the inside of the filter 4 is closed. Valve detection means for detecting the connection direction of the switching valve 37 when the bath water purifying apparatus stops operating during the washing process for discharging water from the drain port 38, The switching valve 37 is provided with a valve switching means for switching the direction of the switching valve 37 to the drainage port 38 side when the switching valve 37 is not connected to the drainage port 38 side. When the device stops working at
Switching valve 3 when the power is turned on again and the device operates
Even if 7 faces the discharge port 3, the switching valve 37
The direction of can be switched to the drain port 38 side.

Further, in the third aspect of the present invention, the drainage pipe 56 is connected to the drainage port 38, the drainage pipe 56 is arranged along the flange 17 of the bathtub 10, and the edge is placed on the flange 1. The drainage pipe 56 is housed in the pipe storage groove 12 formed in the side end surface of the bath lid 11 that is recessed. The drainage pipe 56 is hidden in the pipe storage groove 12 and is not exposed on the flange 17. You can

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments. FIG. 1 is a schematic cross-sectional view of a bath water purifier that can be retrofitted to an existing bathtub 10, which has a heater 22 formed of a small capacity (about 600 W) sheathed heater. It is formed of a main body 23 and a suction unit 21 provided with a suction port 1 and a discharge port 3. The device body 23 has a pump chamber 2 inside.
4, the heater chamber 25, and the filtration chamber 26. The circulation chamber 2 is provided in the pump chamber 24, the heater 22 is provided in the heater chamber 25, and the filter 4 is provided in the filtration chamber 26. .

The suction unit 21 has a filter 3
0 and a suction valve 1 having a check valve 31 and a discharge port 3 formed in a jet jet type having an air mixing chamber connected to an air intake port 32 via an air pipe 33, The suction port 1 is connected to the pump chamber 24 via the inflow pipe 34, and the discharge port 3 is connected to the filtration chamber 26 via the outflow pipe 35. A strainer 36 is provided on the outflow pipe 35, and a switching valve 37 formed by an electromagnetic valve is provided between the strainer 36 and the filtration chamber 26. The switching valve 37 is for switching the flow path between the drain port 38 formed in the main body 23 of the apparatus and the discharge port 3, and is provided for the filtration chamber 14 and the discharge port 3.
It is possible to switch between one of the state in which the filter chamber is connected and the state in which the filter chamber 14 and the drain port 38 are connected.

The filter 4 is filled with granular filter material 40, and the filter 40 can be agitated by a stirrer 41 provided in the filter 4. Stirrer 4
Reference numeral 1 denotes a vertical shaft 42 and a stirring blade 43 provided on the shaft 42. The upper end of the shaft 42 is connected to an output shaft 46 of a stirring motor 45 attached to a lid 44 of the apparatus body 23. Has become.

FIG. 2 shows the appearance of the bath water purifier. The discharge port 3 is provided on the front surface of the suction unit 21, and the suction port 1 is provided on the lower surface of the suction unit 21. The suction unit 21 is attached to the inner wall surface of the bathtub 10 so as to be immersed in the bath water. Further, the device body 23 is mounted on the flange 17 of the bathtub 1 by a mount 48. Reference numeral 56 is a drainage pipe connected to the drainage port 38.

In the bath water purifying apparatus formed as described above, the switching valve 37 is oriented so that the filter 4 and the discharge port 3 are connected during the normal purifying operation. When the water is driven, the bath water in the bathtub 10 is sucked from the suction port 1, is sent to the filtration chamber 26 through the heater chamber 25, is filtered and purified by the filter 4, and is then discharged from the discharge port 3 through the switching valve 37 from the bath port 3. 10 is discharged. In this way, the bath water in the bathtub 10 is sucked through the suction port 1 and filtered by the filter 4, and then the bath water is circulated so as to be discharged from the discharge port 3 into the bathtub 10 The water can be kept in a purified state at all times,
When the heater 22 is energized, the temperature of the bath water can be prevented from lowering, and the bath water can be kept at a constant temperature for 24 hours.

When the filter medium 40 is used for a long period of time, dirt is deposited on the filter medium 40 in the filter 4 and the filtering performance of the filter medium 40 deteriorates. Therefore, it is necessary to wash the filter medium 40 regularly. Pressure sensors 59 and 60 are arranged in front of and behind the pump 2, and the pressure sensor 60 detects that the filter medium 40 in the filter 4 is clogged with dirt based on the increase in the pressure detected by the pressure sensor 59. The clogging of the filter 30 is detected on the basis of the decrease in the detection pressure.

The operation of cleaning the filter medium 40 of the filter 4 according to the first aspect of the invention will be described below. FIG. 3 shows claim 1.
Is a control block diagram used in the invention of
The control circuit 61 for controlling the operations of the circulation pump 2, the switching valve 37, and the stirring motor 45 constitutes a cleaning control means. Then, before performing the cleaning, first, the operation switch 62 is turned off to stop the operation of the circulation pump 2. When the operation of the circulation pump 2 is stopped, the bath water remains in the circulation path from the suction port 1 to the discharge port 3. Next, when the washing switch 63 is turned on, the stirring motor 45 is operated and the stirring machine 41 starts rotational driving. Here, even if the cleaning switch 63 is turned on while the circulation pump 2 is operating, the stirring circuit 45 is prevented from operating by the action of the control circuit 61.

When the agitator 41 is rotationally driven in this way to agitate the filter medium 40 with the agitating blades 43, the filter medium 40 is filtered by the filter 4
Since it is agitated with the water inside, the dirt adhering to the filter medium 40 can be separated from the filter medium 40 and washed. When the stirrer 41 is rotationally driven in this manner to wash, the circulation pump 2 is not operating, so the bath water is not supplied to the filter 4 and is not discharged. Therefore, a large amount of bath water is used for washing. Is no longer consumed, and the cleaning time can be set longer regardless of the consumption of bath water.

Next, the operating time of the stirring motor 45 is measured by a timer built in the control circuit 61,
When the preset cleaning time elapses, the stirring motor 45
The switching valve 37 is actuated by a command from the control circuit 61 while continuing the operation of the control circuit 61, and the switching valve is switched from the direction in which the filter 4 is connected to the discharge port 3 to the direction in which the filter 4 is connected to the drain port 38. 37 is switched and the circulation pump 2 is further operated. When the filter 4 is thus connected to the drain port 38 and the circulation pump 2 is operated, the bath water in the bathtub 10 is sucked from the suction port 6 and sent to the filtration chamber 26 to remove the dirt separated from the filter medium 40. It can be discharged from the drain port 38 together with this bath water.

By continuing this operation, the inside of the filter 4 can be rinsed and rinsed. The operating time during this period is measured by the timer built into the control circuit 61, and the preset rinse and rinse is performed. When the time elapses, the operation of the stirring motor 45 is stopped by the command from the control circuit 61 to stop the rotational drive of the stirrer 41, the operation of the circulation pump 2 is stopped, and the switching valve 37 is further operated to operate the filter 4. The switching valve 37 is switched from the direction in which the filter was connected to the drain port 38 to the direction in which the filter 4 is connected to the discharge port 3. The cleaning operation is completed in this way, and after this,
When the operation switch 62 is turned on, the circulation pump 2 is activated and the normal purification operation can be performed.

Next, the invention of claim 2 will be described.
FIG. 4 is a control block diagram used in the invention of claim 2, wherein a valve switching means is constituted by a control circuit 61 for controlling the operations of the circulation pump 2, the switching valve 37, and the stirring motor 45. The valve detection sensor 64 constitutes a valve detection means. In the invention of claim 2, the cleaning operation of the filter medium 40 of the filter 4 can be performed in the same manner as in the case of the invention of claim 1, but is not limited to this, and is performed as follows. You can also

That is, first, before carrying out the cleaning,
The operation switch 62 is turned off to stop the operation of the circulation pump 2. Next, when the washing switch 63 is turned on, the switching valve 37 operates to switch from the direction in which the filter 4 is connected to the drain port 38 to the direction in which the filter 4 is connected to the discharge port 3 and the stirring motor 45. Is activated, the stirrer 41 starts rotating, and the cleaning operation is started. Next, when the preset cleaning time has elapsed, while continuing the operation of the stirring motor 45 to drive the stirrer 41,
Alternatively, the operation of the stirring motor 45 is stopped and the stirring machine 41
Then, the circulation pump 2 is operated to discharge the dirt separated from the filter material 40 by the cleaning from the drain port 38 together with the bath water. When the rinsing for discharging the dirt with the bath water is completed in this way, the operation of the circulation pump 2 (and the stirring motor 45) is stopped, and the switching valve 37
Is operated to switch the switching valve 37 from the direction in which the filter 4 is connected to the drain port 38 to the direction in which the filter 4 is connected to the discharge port 3. In this way, the cleaning operation is completed. After that, when the operation switch 62 is turned on, the circulation pump 2 operates and the normal cleaning operation can be performed.

According to the second aspect of the present invention, when the operation of the apparatus is stopped due to a power failure or the like during this cleaning operation, when the power is turned on again after this, the valve detection sensor 64 is instructed by the control circuit 61. Is activated and the switching valve 37
It is designed to detect the direction of. The valve detection sensor 64 may be, for example, a rotary potentiometer, and detects the direction of the switching valve 37 by measuring the rotation angle of the switching valve 37. When the direction of the switching valve 37 when the power is turned on again is not the direction for connecting the filter 4 to the drain port 38, the switching valve 37 is activated by a command from the control circuit 61 to drain the filter 4. Mouth 38
It can be switched to the direction to connect with. Therefore, even if the circulation pump 2 is operated and the bath water is sent to the filter 4 when the power is turned on again, the bath water will contain the dirt generated by the cleaning in the filter 4 It is possible to prevent the contaminants in the filter 4 from being discharged from the discharge port 3 into the bathtub 10 and discharged into the bathtub 10 from being discharged from the discharge port 38.

By providing the valve detection sensor 64 for detecting the direction of the switching valve 37 in this way, the switching valve 37 is connected so that the filter 4 is connected to the discharge port 3 during the normal purification operation. It becomes possible to confirm whether or not it is facing, and the switching valve 3
It is possible to prevent the circulation pump 2 from being operated and the cleaning operation to be performed in a state in which 7 is facing a halfway position or facing the drain port 38 side.

The bathtub 10 is generally a wall surface 49 of a bathroom.
2, the apparatus main body 23 of the bath water purifying apparatus is installed on the flange 17 at the corner of the bath 10 by the triangular mount 48 as shown in FIG. The drainage pipe 56 connected to the drainage port 38 is arranged on the upper surface of the flange 17 along the wall surface 49 so as to be guided to the outside of the bathtub 11 and fixed by a suction cup 57 or the like. However, when the drainage pipe 56 is arranged in this manner, the drainage pipe 56 is exposed, which may impair the appearance of the bathtub.
When the drainage pipe 56 is arranged on the upper surface of the flange 17 when the drainage pipe 56 is placed on the top of the
As in (a) and (b), the margin for placing the edge of the bath lid 11 on the flange 17 is reduced, and the bath lid 11 may not be stably placed on the flange 17.

Therefore, in the present invention, as shown in FIG. 5 (b), the bath lid 11 formed by providing the notch 15 into which the frame 48 of the apparatus main body 23 is fitted is used to conceal the drainage pipe 56. I have to. That is, the pipe housing groove 12 is recessed over the entire length of the side end surface of the bath lid 11 facing the wall surface 49 side, and the cutout portion 15 is formed as shown in FIGS. 5 (a) and 6 (a).
When the bath lid 11 is placed on the flange 17 of the bathtub 10 at the end portion on the apparatus body 23 side so that the pedestal 48 is fitted into the pipe, the drainage is drained into the pipe storage groove 12 as shown in FIG. 6B. By storing the pipe 56, the drainage pipe 56 is concealed in the pipe storage groove 12. When the drainage pipe 56 is housed in the pipe housing groove 12 in this way, the edge of the bath lid 11 can be placed over the width of the flange 17 of the bathtub 10, and the bath lid 11 can be placed on the flange 17. It can be placed stably and the safety can be improved. Since the bath lid 11 is used at the end of the bathtub 10, it is often bathed with the bath lid 11 covering the bathtub 10. However, when bathing, the bath lid 11 must be removed. After the bath is finished, the bath lid 11 may be covered on the bathtub 10 while the drainage pipe 56 is being stored in the pipe storage groove 12.

[0028]

As described above, the invention according to claim 1 has a circulation path connecting the suction port, the circulation pump and the discharge port, and operates the circulation pump to suck the bath water in the bathtub from the suction port. In a bath water purifying device that circulates by discharging from a discharge port and purifies bath water by a filter disposed in the circulation path, a stirrer that stirs a filter medium filled in the filter, the filter and the spout A switching valve that switches to either the connection with the outlet or the connection between the filter and the drain outlet for discharging the water in the filter, and the agitator is operated while the circulation pump is not operating, and the predetermined time has elapsed. Since the switching valve is switched from the discharge side to the drain side and the circulation pump is operated while the agitator is being operated, the cleaning control means is provided. The agitator can be operated to wash the filter material only when the pump stops and bath water is not supplied to the filter.The circulation pump is operated to discharge the bath water supplied to the filter from the drain port. However, it is possible to reduce the consumption of bath water as in the case of performing cleaning, and to reduce the amount of water for cleaning.

The invention according to claim 2 has a circulation path connecting the suction port, the circulation pump and the discharge port, and operates the circulation pump to suck the bath water in the bathtub from the suction port and discharge it from the discharge port. In the bath water purifying apparatus that purifies the bath water by the filter disposed in the circulation path while being circulated, a stirrer that stirs the filter medium filled in the filter, and the connection between the filter and the discharge port or A switching valve that switches between one of the connection between the filter and the drain outlet that discharges the water in the filter, and the switching valve from the discharge side to the drain side after the filter is activated to stir the filter material in the filter. When the bath water purifier stops operating during the cleaning operation in which the water is drained from the drainage port by switching to the It is equipped with a valve detection means for detecting the bleeding and a valve switching means for switching the direction of the switching valve to the drain side when the switching valve is not connected to the drain side, so that the cleaning operation can be performed during the cleaning operation. Even if the switching valve faces the discharge port when the power is turned on again when the device stops operating due to a power failure, etc., the direction of the switching valve can be switched to the drain port side. It is possible to prevent dirt generated by cleaning the inside of the filter from being discharged from the discharge port to the bath.

Further, in the invention of claim 3, a drainage pipe connected to the drainage outlet is connected, the drainage pipe is arranged along the flange of the bathtub, and the edge is placed on the flange. Since the drainage pipe is housed in the pipe storage groove recessed in the side end surface of the lid, the drainage pipe can be hidden inside the pipe storage groove so that the drainage pipe is not exposed above the flange. It is possible to prevent the appearance of the piping from being impaired, and it is possible to place the bath lid on the flange without disturbing the drainage piping on the flange.
The bath lid can be stably placed on the flange.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a perspective view of the same.

FIG. 3 is a control block diagram of an embodiment of the invention of claim 1;

FIG. 4 is a control block diagram of an embodiment of the invention of claim 2;

FIG. 5 shows an embodiment of the invention of claim 3,
(A) is a perspective view, (b) is a perspective view of a bath lid.

FIG. 6 shows an embodiment of the invention of claim 3,
(A) is a plan view and (b) is a partial front sectional view.

FIG. 7 shows a conventional example, (a) is a plan view,
(B) is some front sectional drawings.

[Explanation of symbols]

 1 Suction Port 2 Pump 3 Discharge Port 4 Filter 10 Bathtub 11 Bath Lid 12 Pipe Storage Groove 17 Flange 37 Switching Valve 38 Drain Port 40 Filter Media 41 Stirrer 56 Drain Pipe

Claims (3)

[Claims] 1. A circulation path connecting a suction port, a circulation pump and a discharge port, wherein the circulation pump is operated to suck the bath water in the bathtub through the suction port and discharge it from the discharge port for circulation. In a bath water purifying device for purifying bath water by a filter arranged in a circulation path, a stirrer for stirring the filter medium filled in the filter and the connection between the filter and the discharge port or the inside of the filter and the filter The switching valve that switches to any one of the connection with the drain port that discharges the water, the agitator is operated while the circulation pump is not operating, and the switching valve is discharged while the agitator is operating after a lapse of a predetermined time. A bath water purifying apparatus comprising cleaning control means for controlling the circulation pump to operate while switching from the outlet side to the drain side. 2. A circulation path connecting the suction port, the circulation pump, and the discharge port, wherein the circulation pump is operated to suck the bath water in the bathtub from the suction port and discharge it from the discharge port to circulate the water. In a bath water purifying device for purifying bath water by a filter arranged in a circulation path, a stirrer for stirring the filter medium filled in the filter and the connection between the filter and the discharge port or the inside of the filter and the filter The switching valve that switches to any one of the connection with the drain port that discharges the water, and after switching the switching valve from the discharge side to the drain side by operating the filter to stir the filter medium in the filter If the bath water purifier stops working during the cleaning operation to discharge the above water from the drainage port, the valve detector detects the direction of the connection of the switching valve when the bath water purifier restarts. An apparatus for purifying bath water, comprising: an knowing means and a valve switching means for switching the direction of the switching valve to the drain side when the switching valve is not connected to the drain side. 3. The bath water purifying apparatus according to claim 1 or 2, wherein a drainage pipe connected to the drainage port is connected, and the drainage pipe is arranged along the flange of the bathtub, and is disposed on the flange. A bath water purifying device characterized in that drainage pipes are housed in a pipe storage groove that is recessed in the side end surface of the bath lid on which the edge is placed.