JPH0779874A - Circulation, heat insulation, and filtration device for water in bathtub - Google Patents

Abstract

PURPOSE:To miniaturize a circulation, heat insulation, and filtration device for bathtub water, improve its filtration ability, and to enable to install the device at any position in a bathroom. CONSTITUTION:A suction port 20a and a discharge port 20b of a pump 20 are connected respectively to a lower end part of a first tank 11 having an inflow port 11b at an upper end part, and a lower end part of a second tank 17 having an outflow port 17b at an upper end. In addition, a prefilter 15 and a bobbin filter 13 are disposed in the first tank 11, and filtration cleaning agent is disposed in the second tank 17, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath water circulation heat insulating device for filtering bath water sucked by using a pump and further heating and keeping the temperature to recirculate it in the bath.

[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. Further, a device for adding heat-retaining means for heating and keeping the bath water to the above device to purify the bath water and keep the temperature in parallel has also been developed.

[0003]

By the way, in the above-mentioned conventional apparatus, the pump is placed below the surface of the bath water in the bath in order to prevent the pump from idling due to the inflow of air into the pump. It must be installed so that bath water can always automatically flow into the pump. However, in that case, the device is often installed directly on the floor of the bathroom, resulting in a problem that the bathroom becomes small.

For the purpose of solving the above problem, for example, there is an apparatus disclosed in Japanese Utility Model Laid-Open No. 63-69949. 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. Reference numeral 3 is a cylindrical tank, and the tank 3 is filled with a filter medium 4. The lower end of the tank 3 is connected to the suction side of the pump 1, and the upper end of the tank 3 is connected to the other end of the water inlet pipe 5 whose one end is immersed in the bath water in the bath 2.

On the other hand, the water discharge pipe 6 is provided on the discharge side of the pump 1.
Are connected at one end. The discharge pipe is provided with a rising portion 6a which is bent upward until its height is higher than the pump 1 and is bent downward immediately thereafter, and the other end of the water discharge pipe 6 is on the water surface L. It is open.

When the pump 1 is operated in the state shown in FIG. 2, the bath water of the bath 2 reaches the inside of the tank 3 through the water inlet pipe 5 and is filtered by the filter medium 4 in the tank 3, and then the pump 1 and the rising portion 6a are removed. After that, the water is discharged from the water discharge pipe 6. Then, the above steps are continuously performed and the bath water is circulated between the bath 2 and the device, whereby the bath water in the bath is continuously filtered.

In this device, since the suction side of the pump 1 is connected to the lower end of the tank 3, even if some air is mixed in the tank 3, this air will not flow into the pump 1. Moreover, since the rising portion 6a is formed on the discharge side of the pump 1, the bath water in the pump 1 is retained between the tank 3 and the rising portion 6a even when the pump 1 is stopped. Inflow of air is prevented. Therefore, as shown in FIG. 2, the device can be installed above the water surface L, and there is an advantage that the device need not be installed on the floor of the bathroom.

However, in the case of the device disclosed in Japanese Utility Model Laid-Open No. 63-69949, a rising part 6a is provided on the discharge side of the pump 1.
Therefore, there was a problem in terms of material saving and space saving. Further, since there is only one type of filter medium 4, there is a problem that the method for filtering bath water is limited.

By reducing the size of the filter medium 4 and arranging a plurality of filter mediums in series in the tank 3, or by newly providing a filter device at one end of the water inlet pipe 5 immersed in the bathtub 2, Although it is possible to diversify, in this case, since a large-sized filter medium or filter device cannot be used, there is a problem in that the filtration capacity and the service life thereof are reduced. Further, when a filtering device is provided at one end of the water entry pipe 5, there is also a problem that the filtering device interferes with bathing.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and includes an inlet for sucking in bath water, a filtering means for filtering the sucked bath water, and heating the filtered bath water. Insulating means for keeping heat, a water outlet for discharging heated and kept warm bath water, and sucking the bath water from the water inlet,
And a pump that discharges from the water outlet, has a bottomed cylindrical shape on the suction side of the pump, is connected to the water inlet at the upper end thereof, and is the suction port of the pump at the lower end thereof. The first tank connected to the pump is erected and has a bottomed cylindrical shape on the discharge side of the pump, the lower end of which is connected to the discharge port of the pump, and the upper end of which is connected to the pump. A bath water circulation warming and filtration device characterized in that a second tank connected to a water outlet is erected.

[0011]

In the circulation warming / filtering apparatus for bath water according to the present invention, the suction port and the discharge port of the pump are the outlet at the lower end and the upper end of the first tank connected to the inlet at the upper end. Are respectively connected to the lower ends of the second tanks connected to. Therefore, the bath water in the pump is always held between the first tank and the second tank, and even if some air is mixed in the first tank, this air is supplied to the pump. It does not flow in.

[0012]

Embodiments of the present invention will now be described in more detail with reference to the drawings. FIG. 1 shows an example of the structure of the circulating heat insulation filtration apparatus for bath water according to the present invention. In the figure, reference numeral 10 is a cover for covering the entire apparatus. The cover 10 includes a box-shaped main body 10a and an upper lid 10 placed on the upper end surface of the main body 10a.
and b.

A cylindrical first tank 11 and a third tank 12 are inserted into the main body 10a from above, and the upper ends of the first tank 11 and the third tank 12 are cylindrical with a bottom. The lids 11c and 12c are closed from above.

At the center of the lower end surface of the first tank, a cylindrical outlet 11a coaxial with the first tank 11 is provided integrally with the first tank 11. Furthermore, in the first tank 11, a cylindrical wound filter (filtering means) 13 is provided in the center thereof, and is a hollow portion 13a.
Is erected so as to be coaxial with the first tank 11 through the space S ₁ in a state of being fitted to the outflow port 11a at its lower end. In the case of the present embodiment, the bobbin wound filter 13 mainly collects suspended matter on the order of microns.

The upper end of the spool 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 (filtering means) 15 is detachably mounted above the holding plate 14. Here, the outer diameter of the pre-filter 15 is the same as the inner surface of the first tank 11, and as a result, the first tank 11 is closed by the pre-filter 15 at the upper end thereof.
In the case of the present embodiment, the pre-filter 15 has a floating substance larger than the collection target of the spool filter 13 as the collection target.

An inflow port 11b is provided integrally with the first tank 11 above the pre-filter 15 of the first tank 11, and the first tank 11 is not shown in the figure via this inflow port 11b. It is connected to a water inlet pipe 16 extending from the water inlet.

On the other hand, at the center of the lower end surface of the third tank 12, a cylindrical connecting portion 12 coaxial with the third tank 12 is provided.
a is provided integrally with the third tank 12. Further, in the third tank 12, a second tank 17 having a cylindrical shape having a smaller diameter than that of the third tank 12 and having several kinds of filtering detergents (filtering means) enclosed therein is provided at the lower end central portion thereof. In a state where the inflow port 17a provided in the above is fitted to the connecting portion 12a, it is detachably provided so as to be coaxial with the third tank 12 through the space S ₂ . In the case of this embodiment, as the filter detergent, a bactericidal agent or a neutralizing agent for organic substances and inorganic ions is used.

An outlet 17b is formed at the upper end of the second tank 17 and opens laterally, and a cylindrical connecting portion is provided at the lower end surface of the third tank 12 adjacent to the connecting portion 12a. 12b is provided integrally with the third tank 12. The third tank 12 is connected to the water outlet pipe 18 extending to a water outlet (not shown) via the connecting portion 12b. A heater (heat-retaining means) 19 in which a heating element such as a heating wire is embedded in a block made of an aluminum alloy is installed in the water discharge pipe 18, and the bath water is inserted into the heater 19 to remove the bath water. Add to predetermined temperature /
Can be kept warm.

Further, the first tank 1 at the bottom of the main body 10a
At the position between the first and third tanks 12, the pump 20
Is installed. A suction port 20a and a discharge port 20b are formed at the lower end of the pump 20, respectively.
a and the discharge port 20b respectively have the first tank 11
The outflow port 11a and the connecting portion 12a of the third tank 12 are connected via the pipe lines 21 and 22, respectively.

Next, the operation of the circulating heat insulation / filtering apparatus for bath water having the above construction will be described below. First, priming water for preventing idling of the pump 20 due to the inflow of air into the pump 20 is introduced into the first tank 11, the third tank 12, and the pump 20. In this state, when 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 bathtub water in the bathtub is the water inlet pipe 16 and the inflow port 11b.
Through the upper end of the first tank 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 due to the internal pressure of the filled bath water and the action of the pump 20, the bath water gradually moves inward in the radial direction from the outer peripheral surface of the bobbin filter 13 to the inner peripheral surface of the bobbin filter 13. To hollow part 13a
Flows into. As a result, micron-order suspended matter in the bath water is collected on the outer peripheral surface of the thread winding filter 13 and in the thread winding filter 13, and the hollow portion 13a
Bath water, which contains almost no suspended solids, flows into this.

The bath water that has flowed into the hollow portion 13a reaches the inside of the pump 20 through the outlet 11a, the conduit 21 and the suction port 20a by the action of the pump 20, and further the discharge port 20.
It flows into the second tank 17 through b, the conduit 22, the connecting portion 12a, and the inflow port 17a. The sterilizing action of the filter detergent enclosed in the second tank 17 or the neutralizing action against organic substances and inorganic ions causes the outlet 17b to be clean bath water containing almost no bacteria or dissolved contaminants. Is gradually overflowed into the 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 the action of the heater 19 provided in the water outlet pipe 18, the water is recovered from the water outlet into the bath.

By continuously performing the above steps and circulating the bath water between the bath and the apparatus, the bath water in the bath can be always kept clean and at a predetermined temperature. 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.

Further, in the bath water circulation heat insulation / filtering apparatus according to the present invention, the first tank 11 has its inflow port 11
b and the outlet 11a are erected with the upper end and the lower end opened, and the second tank 17 is
The inflow port 17a and the outflow port 17b are erected so as to be opened at the lower end and the upper end, respectively, and the suction port 20a and the discharge port 20b of the pump 20 are respectively provided at the outflow port 11a and the inflow port 17a. It is a connected structure.

Therefore, the bath water once introduced into the pump 20 is always held between the first tank 11 and the second tank 17. That is, in the device of the present invention, even when the device is installed above the surface of the bath water in the bathtub, the inflow of air into the pump 20 is prevented, and therefore the installation location of the device in the bathroom is not limited. There is an effect. Moreover, since the outlet 11a of the first tank 11 is opened at the lower end portion of the first tank 11, even if some air is mixed in the first tank 11, this air will flow into the pump 20. There is no inflow.

In particular, instead of providing a rising part or the like on the discharge side of the pump 20, a second tank 17 having the same function as the rising part or the like is provided, and the filter cleaning agent is enclosed in the second tank 17, Further filtration of bath water can be performed using the space where the upright was previously installed. Moreover, since the bath water is sequentially filtered using the three types of filtering means, that is, the pre-filter 15, the spool filter 13, and the filter cleaning agent, the bath water can be purified more effectively, and as a result, the bath water can be purified. The replacement frequency can be further reduced.

That is, in the bath water circulation heat retention / filtration apparatus according to the present invention, it is possible to realize both the downsizing of the apparatus and the improvement of the filtration capacity. Further, since a large one can be used for each filtering means, a high filtering capacity can be maintained for a long time.

Further, by causing the bath water overflowing from the outlet 17b to flow into the water discharge pipe 18 from the space S ₂ via the connecting portion 12b, the bath water is sent from the second tank 17 to the water discharge pipe 18. Therefore, compared to the case where the outlet 17b is directly connected to the water outlet pipe 18 via a conduit or the like, the structure is simpler and the material is saved.

Furthermore, the pre-filter 15, the bobbin-wound filter 13 and the second tank 17 are provided with the upper lid 10b.
The lids 11c and 12c can be easily replaced by simply opening and lifting them. Moreover, the second tank 17
However, since the inflow port 17a provided at the center of the lower end of the second tank 17 is erected in the third tank 12 in a state of being fitted to the connecting portion 12a, the second tank 17 is separated from the third tank 12. By simply pulling out and separating the inflow port 17a and the connecting portion 12a from each other, the bath water in the apparatus can be easily discharged from the connecting portion 12b to the height of the connecting portion 12b. Therefore, it is not necessary to provide a dedicated drain port for draining water from the pump 20, and draining water from the pump 20 is extremely easy.

[0031]

As described above, by using the circulating heat insulation filtration device of bath water according to the present invention, the bath water is largely saved, and the bath water is replaced and the bath water is cleaned when the bath water becomes dirty. It is possible to significantly reduce the troublesome work. Moreover, in the bath water circulation warming filtration apparatus according to the present invention, it is possible to realize both the downsizing of the apparatus and the improvement of the filtering capacity, and the installation location of the apparatus is not limited.

[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 Bath 3 Tank 4 Filter medium 5,16 Water inlet pipe 6,18 Water outlet pipe 6a Rise 10 Cover 10a Main body 10b Upper lid 11 First tank 12 Third tank 11a, 17b Outlet 11b, 17a Inlet 11c , 12c Lids 12a, 12b Connection part 13 Thread wound filter 13a Hollow part 14 Holding plate 15 Prefilter 17 Second tank 19 Heater 21,22 Pipeline S ₁ , S ₂ Space L Water level of bath water

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Tadamatsu Takada 1-7-7 Sumiyoshi, Soka-shi, Saitama Prefecture Okuma Works (72) Inventor Akio Fukushima 1-7-7 Sumiyoshi, Soka-shi, Saitama Prefecture Stock company Okuma Plant (72) Inventor, Fuji Ichimura, 1975, Shimoishi Togami, Kitamoto City, Saitama Prefecture 2 Mitsubishi Materials Corporation Kitamoto Plant (72) Takayuki Sato, 6-18 Nishikawaguchi, Kawaguchi City, Saitama Prefecture No. 1 Japan Dynatech Co., Ltd.

Claims (4)

[Claims] 1. A water inlet for inhaling bath water, a filtering means for filtering the inhaled bath water, a heat retaining means for heating and retaining the filtered bath water, and a water outlet for discharging the heated bath water. And a pump for sucking the bath water from the water inlet and discharging the water from the water outlet. The suction side of the pump has a bottomed cylindrical shape and is connected to the water inlet at the upper end thereof. And a first tank connected to the suction port of the pump at its lower end is erected, and has a bottomed cylindrical shape on the discharge side of the pump. A circulating tank heat retention filtration device, characterized in that a second tank connected to the discharge port and connected to the water outlet at the upper end thereof is provided upright. 2. The second tank is contained in a third tank having a larger diameter, and the second tank is formed between the second tank and the third tank. 2. The circulating warm water filtration apparatus for bath water according to claim 1, wherein the circulation hot water filtration apparatus is connected to the water outlet through a space and a connecting portion that opens at a lower end of the third tank. 3. The bath water circulation heat retention filtration device according to claim 1, wherein the filtration means is provided in each of the first tank and the second tank. 4. The circulating warm water filtration apparatus according to claim 1, wherein the second tank is detachably connected to a discharge port of the pump.