JPH0780222A - Filtration device of bathtub water - Google Patents

Abstract

PURPOSE:To detect a cause for an operating difficulty to suck and discharge a bathtub water rapidly and easily, when such a difficulty occurs. CONSTITUTION:A water current sensor 23 operating in response to the presence of a water current in a bathtub generated in a tubular passage 22 is installed in the tubular passage 22 formed in the downstream of a pump 20. The water current sensor 23 detects the malfunction of the pump 20 by judging the operating condition of the water current sensor 23, and is connected to an interpretation means for interpreting a cause for the malfunction of the pump 20. In addition, the cause for the malfunction of the pump 20 interpreted by the interpretation means is display by a display means attached on the outer surface of a main device system 10a and connected to the interpretation means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for filtering bath water sucked by a pump, and more particularly to a device for detecting bath water which can detect an abnormality in the water flow in the device and determine its cause. The present invention relates to a filtering device.

[0002]

2. Description of the Related Art The purification of bath water stored in a bath so that it can be used repeatedly is not only a significant saving of bath water, but also replacement of bath water and cleaning of the bath due to stains on the bath water. It is also effective in reducing the work such as. Therefore, for this purpose, suction the bath water using a pump,
Many devices have been developed from the prior art that filter this and then return it to the bath to continuously purify the bath water.

An example of such an apparatus is, for example, Shokai Sho 6
There is a device disclosed in JP-A-3-69949. The structure of this device is shown in FIG. In the figure, reference numeral 1 is a pump, and the pump 1 is installed above the bath surface L in the bath 2. Further, reference numeral 3 is a cylindrical container, and a cartridge type filter medium 4 is installed in the container 3. The lower end of the container 3 is connected to the suction side of the pump 1, and the upper end of the container 3 is connected to the other end of the water pipe 5 whose one end is immersed in the bath water in the bath 2.

On the other hand, a water discharge pipe 6 is provided on the discharge side of the pump 1.
Are connected at one end. The discharge pipe 6 is formed with a rising portion 6a which is bent upward until its height is above the pump 1 and is bent downward immediately thereafter, and the other end of the water discharge pipe 6 is above the water surface L. It is open to. The rising portion 6a is the pump 1 when the pump 1 is stopped.
This is to prevent outflow of bath water from inside. Further, the pump 1, the container 3 and the rising portion 6 a are covered with a cover indicated by reference numeral 7.

When the pump 1 is operated in the state of FIG. 2, the bath water of the bath 2 reaches the inside of the container 3 from the water inlet pipe 5, is filtered by the filter medium 4 in the container 3, and then passes through the pump 1 and rises 6a. And is discharged from the water discharge pipe 6. And
By performing the above steps continuously and circulating the bath water between the bath 2 and the device, the bath water in the bath is continuously filtered.

[0006]

By the way, generally, in the bath water filtering apparatus, either the filter medium 4 is clogged, or the pump 1 is idling due to the inflow of air into the pump 1. The flow of bath water in the device may be obstructed, and it may be difficult to inhale and discharge the bath water.

However, in the above-mentioned conventional apparatus, when it is difficult to inhale and discharge the bath water, it is impossible to determine the cause from the appearance of the apparatus. Therefore, in the case of the above-mentioned conventional apparatus, it is necessary to disassemble the apparatus to some extent and directly check the cause, but this work has a problem that it takes a relatively long time and is troublesome.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has a water inlet for sucking in bath water, a filtering means for filtering bath water sucked from the water inlet, and a bath after filtration. In a bathtub water filtering device having a water outlet for discharging water and a pump for inhaling the bathwater from the water inlet and discharging the water from the water outlet, the flow of the water in the bathtub generated in the filter device by the pump A water flow sensor that opens and closes depending on the presence or absence, a determination unit that detects a malfunction of the pump from the open / closed state of the water flow sensor, and determines the cause of the malfunction of the pump, based on the determination result of the determination unit, A bath water circulating heat insulation filtration device, comprising: a display unit that displays a cause of the pump malfunction.

Here, as a reference for the determination means to determine the cause of the malfunction of the pump, for example, the number of times the water flow sensor is opened or closed or the water flow sensor is opened within a predetermined time after the pump is started. The time until it is closed is used.

[0010]

In the bath water filtering apparatus according to the present invention, the pump malfunction is detected from the opening / closing state of the water flow sensor that opens / closes depending on the presence or absence of the water flow of the bath water generated by the pump in the filtering apparatus, and The pump includes a determination unit that determines the cause of the pump malfunction and a display unit that displays the cause of the pump malfunction based on the determination result. Therefore, when it becomes difficult to inhale and drain the bath water, the cause can be quickly and easily known from the display on the display means.

[0011]

Embodiments of the present invention will now be described in more detail with reference to the drawings. An example of the structure of the bath water filtering device according to the present invention is shown in FIG. Reference numeral 10 in the figure is a cover for covering the entire apparatus, and this cover 10 is a box-shaped main body 10a.
And an upper lid 10b placed on the upper end surface of the main body 10a.

In the main body 10a, a cylindrical support tube 1 is formed.
1 and 12 are respectively inserted from above, and these support cylinders 11 and 12 are both lids 11 provided at the upper ends thereof.
It can be opened and closed by c and 12c.

Of these, a cylindrical outlet 11a is provided coaxially and integrally with the support cylinder 11 at the center of the lower end surface of the support cylinder 11. A filter 13 having a diameter slightly smaller than that of the support cylinder 11 is detachably attached in the support cylinder 11 so as to be coaxial with the support cylinder 11 through a space S ₁ with its lower end fitted to the outlet 11a. It is installed upright. In the case of this embodiment, a thread winding filter having a cylindrical shape and having a hollow portion 13a in the center is used as the filter 13, and in this thread winding filter, the hollow portion 13a is provided at the lower end to the outlet 11a. Support cylinder 1 in the fitted state
It is set up in 1.

The upper end of the filter 13 has a hollow portion 1
It is closed by a holding plate 14 which is fitted to 3a from above, and a disc-shaped pre-filter 15 is detachably placed above the holding plate 14. The outer diameter of the pre-filter 15 is the same as the inner surface of the support cylinder 11, and as a result, the support cylinder 11 is closed by the pre-filter 15 at its upper end. Further, an inflow port 11b is integrally provided with the support tube 11 above the pre-filter 15 of the support tube 11, and the support tube 11 is connected to an inflow pipe 16 extending from an unillustrated inflow port via the inflow port 11b. Has been done.

On the other hand, a cylindrical connecting portion 12a is provided coaxially and integrally with the support tube 12 at the center of the lower end surface of the support tube 12. Then, in the support cylinder 12, the support cylinder 12
A space S ₂ is formed in a state in which a filtration unit 17 having a slightly smaller cylindrical shape and having a filter detergent enclosed therein has an inlet port 17a provided at the center of the lower end thereof fitted to a connecting portion 12a. It is erected so as to be attachable / detachable so as to be coaxial with the support cylinder 12 via the interposition. In the case of the present embodiment, as the filter detergent, for example, a neutralizing agent for organic substances or inorganic ions or the like is used in addition to a bactericidal agent. Further, an outlet 17b is provided on the side surface of the upper end portion of the filtration unit 17.

Further, a cylindrical connecting portion 12b is provided on the lower end surface of the supporting cylinder 12 at a position adjacent to the connecting portion 12a.
And the support cylinder 12 is integrally formed with the connecting portion 12b.
Is connected to a water outlet pipe 18 extending to a water outlet (not shown). In addition, a heater 19 having a heating element such as a heating wire embedded in a block made of an aluminum alloy is installed in the water discharge pipe 18.

A pump 20 is installed at a position between the support cylinders 11 and 12 on the bottom of the main body 10a. The lower end of the pump 20 has a suction port 20a and a discharge port 20 respectively.
b is formed, and the suction port 20a and the discharge port 20b are
The outlet 11a of the support cylinder 11 and the connecting portion 12a of the support cylinder 12 are connected to each other via the conduits 21 and 22, respectively.

Further, in the bath water filtering apparatus according to the present invention, a water flow sensor 23 is installed in the pipe line 22. The water flow sensor 23 opens and closes according to the presence or absence of a water flow of bathtub water generated in the conduit 22.
Of the pump 20 from the open / closed state (in the case of the present embodiment, the time from the opening of the water flow sensor 23 to the closing of the water flow sensor 23 within a predetermined time after the start of the pump 20), and the pump 2
Discriminating means (not shown) for discriminating the cause of the operation failure of 0.
It is connected to the.

The pump 20 discriminated by the discriminating means
The cause of the operation failure is the display means (not shown) connected to the determination means and provided on the outer surface of the main body 10a.
Is displayed in. In the case of the present embodiment, as the display means, there is used a panel in which the causes of malfunction of the pump 20 are listed, and LEDs which are flickered corresponding to the respective causes are arranged.

Next, the operation of the bath water filtering device having the above construction will be described below. First, the support cylinder 11,
A priming water for preventing idling of the pump 20 due to the inflow of air into the pump 20 is introduced into the pump 12 and the pump 20. In this state, if the water inlet is immersed in the bath water in the bath and the water outlet is opened on the bath to operate the pump 20, the bath water in the bath is
6 and the inflow port 11b to flow into the upper end portion of the support cylinder 11. The inflowing bath water reaches the pre-filter 15, and first, the pre-filter 15 collects and filters relatively large suspended matters such as hair, earth and sand, dirt, and lint.

The bath water filtered by the pre-filter 15 fills the pre-filter 15, and then gradually leaches out from the lower end surface of the pre-filter 15 by the action of gravity and the pump 20. The bath water that has leached fills the space S ₁ , and gradually moves inward in the radial direction from the outer peripheral surface of the filter 13 due to the internal pressure of the filled bath water and the action of the pump 20.
It flows from the inner peripheral surface of the filter 13 into the hollow portion 13a. In this case, the fine suspended matter in the bath water is collected on the outer peripheral surface of the filter 13 and in the filter 13, and as a result, the bath water containing almost no suspended matter flows into the hollow portion 13a.

The bath water flowing into the hollow portion 13a passes through the outlet 11a, the conduit 21 and the suction port 20a, and then the pump 2
0, and further the discharge port 20b, the pipe line 22, the connecting portion 12
a and the inflow port 17a, and flows into the filtration unit 17. Then, due to the bactericidal action of the filter cleaning agent enclosed in the filtration unit 17 or the neutralizing action against organic substances and inorganic ions, as a clean bath water containing almost no germs and dissolved contaminants, it is gradually discharged from the outlet 17b. It overflows into space S ₂ .

The bath water overflowed from the outlet 17b gradually flows into the water discharge pipe 18 from the space S ₂ through the connecting portion 12b by the action of gravity and the pump 20.
After being heated and kept at a predetermined temperature by being inserted through a heater 19 provided in the water outlet pipe 18, the water is recovered from the water outlet into the bath.

Further, in the device of the present invention, the conduit 22
When the water flow sensor 23 is opened due to the flow of bath water in the bath, and the water flow sensor 23 is kept open for a predetermined time (35 seconds in the case of this embodiment) after the pump 20 is started, the pump 20 is determined by the determination means. Is judged to be operating without problems. As a result, the pump 20 continues to operate, and bath water is circulated between the bath and the device.

The bath water in the bath can be always kept clean and at a predetermined temperature by continuously performing the above steps and circulating the bath water between the bath and the apparatus. Therefore, the frequency of exchanging the bath water is remarkably reduced, and as a result, the bath water is greatly saved, and the troublesome work of exchanging the bath water and cleaning the bath due to the contamination of the bath water is significantly reduced.

On the other hand, if the water flow sensor 23 is closed even once within the predetermined time, the discrimination means detects the malfunction of the pump 20. There are two main causes of the malfunction of the pump 20: clogging of the filter 13 or the pre-filter 15 and idling of the pump 20 due to residual air in the pump 20, but in the determination means of the present embodiment. If the water flow sensor 23 is not opened within 35 seconds after the operation of the pump 20 is started, the water flow sensor 23 is opened at least once but is closed again. . The determination result by the determining means is displayed on the display means using an LED, and the operation of the pump 20 and the heater 19 is stopped when the operating failure of the pump 20 is detected by the determining means.

In such a case, it is judged from the display of the display means whether the cause is the above or any of them, and an appropriate measure is taken. That is, when the cause of the malfunction of the pump 20 is the above, open the lid 11c,
Replace the filter 13 or the pre-filter 15 with a new one. If the cause of the malfunction of the pump 20 is as described above, the priming water is introduced into the pump 20 again.
Then, by starting the pump 20 again after these treatments, the filtration of the bath water is started.

In the present embodiment, the cause of the malfunction of the pump 20 is determined by the number of times the water flow sensor 23 is opened and closed within a predetermined time after the pump 20 is started. It is also possible to determine the cause of the malfunction of the pump 20 based on the time from when the valve 23 is opened to when it is closed.

In this case, the determining means uses the pump 20.
When the water flow sensor 23 is never opened after the start of, that is, the time from when the water flow sensor 23 is opened to when it is closed is 0.
In this case, it is determined that the cause of the malfunction of the pump 20 is the above, and in other cases, it is determined that the cause of the malfunction of the pump 20 is the above.

Further, in the case of the present embodiment, the judgment result by the judgment means is displayed on the display means by using the LED or the like, and at the same time, the fact that the pump 20 is malfunctioning is notified by using the buzzer or the like. Good. Further, it is of course possible to change the number of times the LED blinks or the number of times of intermittent operation such as a buzzer in accordance with the cause of the malfunction of the pump 20 to more easily notify the cause of the malfunction.

[0031]

As described above, by using the circulating heat insulation filtration device of bath water according to the present invention, when it becomes difficult to inhale and discharge the bath water, the cause can be promptly displayed from the display of the display means. It is possible to know easily. Therefore, an optimum and prompt response can be taken according to the display of the display means.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing an example of the structure of a circulating heat insulation filtration apparatus for bath water according to the present invention.

FIG. 2 is a partial cross-sectional view showing an example of the structure of a conventional bath water circulation filter.

[Explanation of symbols]

1,20 Pump 2 Bathtub 3 Container 4 Filter medium 5,16 Water inlet pipe 6,18 Water outlet pipe 6a Standing up 7,10 Cover 10a Main body 10b Upper lid 11,12 Support cylinder 11a, 17b Outlet 11b, 17a Inlet 11c, 12c Lid 12a, 12b Connection part 13 Filter 13a Hollow part 14 Holding plate 15 Pre-filter 17 Filtration unit 19 Heater 20a Suction port 20b Discharge port 21,22 Pipe line 23 Water flow sensor S ₁ , S ₂ Space L Water level of bath water

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takayuki Sato 6-18-1 Nishikawaguchi, Kawaguchi City, Saitama Prefecture, Japan Dynatec Co., Ltd. Kitamoto Works, Material Co., Ltd.

Claims (3)

[Claims] 1. A water inlet for inhaling bath water, a filtering means for filtering the bath water sucked from the water inlet, a water outlet for discharging the filtered bath water, and a bath water for sucking the bath water from the water inlet. In the bath water filtering device having a pump for discharging from the water outlet, a water flow sensor that opens and closes according to the presence or absence of a water flow of bath water that occurs in the filtering device when the pump operates, and a water flow sensor Detecting malfunction of the pump from the open / closed status,
Further, the bath water filtering device is characterized by further comprising: a determination unit that determines a cause of the pump malfunction, and a display unit that displays a cause of the pump malfunction based on a determination result of the determination unit. 2. The determination means determines the cause of malfunction of the pump based on the number of times the water flow sensor is opened to closed within a predetermined time after the pump is started. Bath water filtering device. 3. The bath water according to claim 1, wherein the determining means determines the cause of the malfunction of the pump based on the time from when the water flow sensor is opened to when the water flow sensor is closed after the pump is started. Filter device.