JP2525892Y2 - Water purification device with switching valve - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for filtering water through a filter to obtain purified water. Here, the water purification device means a device that ionizes water and separates it into alkaline ionized water and acidic ionized water.

[0002]

2. Description of the Related Art A device for purifying water by filtering tap water with a filter such as activated carbon has already been developed. In addition, electricity and water
Away to, it has also been developed devices for separating the alkaline ionized water and acidic ionized water. This device can collect acidic ionic water near the positive electrode and alkaline ionic water near the negative electrode. For this reason, by draining from the vicinity of the electrode, alkaline ionic water and acidic ionic water can be drained. In this type of apparatus, alkaline ionized water is used for drinking water, and acidic ionized water is used as water having a sterilizing effect.

[0003] Water purifiers are most often used in connection with a water tap. When connected to a faucet, it can be easily installed without special piping. However, the water discharged from the faucet is not always filtered and used as purified water. So that it can be used without draining the filtered water,
A switching valve is connected to the faucet. The switching valve switches the water discharged from the faucet to the main body of the water purification device or to directly discharge the water without transferring the water to the main body of the water purification device. When you need clean water or ionized water,
The switching valve is switched so that the water discharged from the faucet flows into the water purification device main body. When no purified water or ionized water is required, the switching valve directly discharges the water discharged from the faucet without supplying it to the water purification device main body.

[0004]

The water purifier having this structure has a feature that the installation work is simplified and the water purifier can be easily installed in a kitchen or the like. However, the filtration state of the discharged purified water fluctuates depending on the installation location. When the water purification device is a device that ionizes water into ionized water, the concentration of the ionized water fluctuates. This is because the flow rate increases when installed in a place where the water pressure is high, and the flow rate decreases in a place where the water pressure is low. Since a filter using activated carbon adsorbs and removes foreign substances contained in water, if the passage time of water becomes short, it becomes impossible to sufficiently filter. Also,
A water purification device that ionizes water to convert it into ionized water has the property of increasing the concentration in proportion to the current and decreasing the concentration in inverse proportion to the flow rate since the water is ionized by passing electricity between the electrodes .

[0005] In order to prevent such adverse effects, fill
A water purifier equipped with a constant flow valve on the inlet side of the
You. A water purifier having this structure is disclosed in JP-A-59-183881.
It is described in the gazette. This water purifier is attached to the tap
Activated carbon that filters tap water
Built-in as a filter. Water passed through activated carbon
The flow rate of the running water is limited to a certain range by a constant flow valve. I
Therefore, the water purifier with this structure has different tap water pressure.
However, the flow rate flowing through the filter can be controlled to be constant.

Further, an ionization tank for ionizing water into ionized water is provided.
Development of ion water generator with orifice on inlet side
(Japanese Utility Model Laid-Open No. 55-39172). This equipment
The installation uses a hose to connect the water tap with the main body containing the ionization tank.
And an orifice on the inflow side of the body. Ori
Fis maintains a constant flow rate of tap water flowing into the ionization tank.
I do. High-pressure tap water resists passing through the orifice
And the flow rate is limited. Because of this,
When the water pressure is high, a large amount of tap water flows into the ionization tank.
And the fluctuation of the flow rate with respect to the water pressure can be reduced.

However, the prior art described in this publication
The water purification device is connected to a hose that connects the main unit and a water tap.
The working pressure cannot be reduced and the hose
There is an adverse effect that the hose easily comes off due to the pressure. Especially
The main body and the faucet are connected by a hose.
ION WATER GENERATING APPARATUS described in -39172
Is equipped with a constant flow valve on the inflow side of the main unit.
The drawback is that the water pressure acting on the hose increases further
is there. The orifice on the inflow side of the main unit is
This is because the passage of water is restricted. Therefore, the orifice
Has the effect of controlling the concentration of ionized water
However, the water pressure acting on the hose has increased
There are drawbacks. Described in JP-A-59-183881
The hose-free construction
Can be removed, but the structure to fix the main body to the faucet,
Water can be converted to ionized water even if it can be used for activated carbon filters, etc.
Cannot be used for ionizing water purifiers. It ionizes the water
Equipment that ionizes water has a large ionization tank and power supply and is heavy.
It is.

[0008] Therefore, a sub flow valve provided with a constant flow valve on the inflow side.
Conventional water purifiers limit the ion concentration to a certain range,
In addition, tap water can be efficiently filtered with a filter such as activated carbon.
Can be realized, but the hose connecting the faucet and the body
The working water pressure will be further increased,
Road pressure may damage the hose or cause the hose to come off.
It will promote harm. In addition, a higher water pressure is applied to the inside of the main body on the inflow side than the constant flow valve , and it is required that this portion has a pressure resistant structure. Therefore, in the device having this structure, it is difficult to connect the hose, and it is necessary to use a hose having a large pressure-resistant structure. In particular, thick hoses cannot easily bend,
There is a drawback that it is difficult to clean the piping and it is difficult to use.

This invention has been developed with the aim of further resolving this drawback. An important object of this invention is that it is possible to always purify water in an ideal state, and that high water pressure is applied to the hose. It is an object of the present invention to provide a water purification device having a switching valve that can be easily installed while preventing breakage or disconnection of a hose.

[0010]

The water purifying apparatus having the switching valve according to the present invention has the following configuration to achieve the above object. That is, a water purification device having a switching valve is
A main body 1 for energizing the inflowing water to separate it into alkaline ionized water and acidic ionized water;
And a switching valve 3 connected to the control valve. The switching valve 3 incorporates a switching ball 16 rotatably disposed in a casing 25. The switching ball 16 includes a water purification channel 16A and a non-water purification channel 1.
6B. Further, a water supply port 19 connected to the drain valve 2 and a discharge port 20 are provided in the casing 25 of the switching valve 3.
And an inlet 21 and a purified water drain 2 connected to the main body 1
2 are open. The purified water discharge port 22 is connected to the discharge port 20. When the switching ball 16 is rotated in the casing 25, the switching ball 16 connects the water supply port 19 to the inflow port 21 via the water purification channel 16A, and connects the water supply port 19 via the non-water purification channel 16B to the discharge port 20. It is configured to be connected to the purified water drain port 22. With this switching valve 3,
The water discharged from the tap water drain valve 2 is converted into ionized water.
The main body 1 is separated from the main body 1 and the drain port 8 is switched so as to flow water. Further, in the water purification device of the present invention, the inflow port 21 of the switching valve 3 and the purified water discharge port 22 are connected to the main body 1 via the hose 10. Switching ball 1 of switching valve 3
In a state where the water purification passage 16A of No. 6 connects the water supply port 19 to the inflow port 21, the water supplied from the water supply drain valve 2 to the water supply port 19 passes through the water purification path 16A, the inflow port 21 and the hose 10. It flows into the main body 1. The ionized water ionized by the main body 1 is discharged through the hose 10, the purified water discharge port 22, and the discharge port 20.

[0011] Furthermore, the water purification apparatus of the present invention has an inflow port 2
1 、 Constant flow to limit the flow rate of tap water flowing into the body 1
A quantity valve 9 is provided. This constant flow valve 9 is provided with a water supply port 19.
Also used with pressure reducing valve to reduce the pressure of tap water flowing from
Is done. The constant flow valve 9 is provided with the water discharged from the inflow port 21.
The pressure of the water is reduced, and the reduced tap water is supplied to the hose 10.
And flow into the main body 1.

[0012]

When the switching ball 16 of the switching valve 3 is switched to the position shown in FIG. 4, the water flowing into the water supply port 19 passes through the non-purified water passage 16B of the switching ball 16 and is discharged from the discharge port 20. At this time, water does not pass through the main body 1. For this reason, the water discharged from the discharge port 20 is not purified water.
When the switching ball 16 is switched to the position shown in FIG. 5, the water at the water supply port 19 is sent to the inflow port 21 through the water purification passage 16A. Since the inflow port 21 is connected to the main body 1, water flows into the main body 1 through the hose 10, becomes purified water at the main body, reaches the purified water drain port 22, and is discharged from the discharge port 20. The constant flow valve 9 built in the switching valve 3 controls the amount of water discharged from the water drain valve 2 within a certain range. When water whose flow rate is controlled by the constant flow valve 9 is supplied to the hose 10, the water pressure acting on the hose 10 also decreases. The water flowing into the main body 1 with a reduced flow rate fluctuation is filtered in an ideal state, and the concentration change of the ionic water is reduced,
It is ionized and discharged to a certain concentration of alkaline ionized water and acidic ionized water. Also, even if water is discharged from the drain valve 2 at a high water pressure, the pressure is reduced by the constant flow valve 9 so that the hose 1
The water pressure inside 0 becomes lower. Therefore, adverse effects due to high-pressure water can be prevented.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. However, the following embodiments are examples of an apparatus for embodying the technical idea of the present invention,
The device of the present invention does not specify the material, shape, structure, and arrangement of the components in the following structures. The device of the present invention can be modified in various ways within the scope of the claims for utility model registration.

Further, in this specification, in order to make it easier to understand the scope of claims for utility model registration, the numbers corresponding to the members shown in the embodiments are indicated by "columns for claims for utility model registration" and "solving the problem." In the column of "means for performing". However, the members indicated in the claims of the utility model registration are not specified as the members of the embodiment.

The water purification device having the switching valve of the present invention is a device for ionizing water into ionized water. The apparatus shown in FIG. 1 includes a main body for ionizing water. This water purification device includes a main body 1,
A switching valve 3 connected to a water drain valve 2 via a hose 10; The main body 1 includes a filter 11 and an ionization tank 4.
And a power supply 7.

The filter 11 filters the supplied tap water with a filter to remove malodorous components such as chlorine contained in the water and foreign substances. The filter 11 has a cartridge case filled with a filtering material. Filter materials include everything that can filter out water and remove odorous components,
For example, activated carbon, porous natural stone, granules having excellent adsorption ability, such as those obtained by grinding and sintering porous natural stone into granules can be used. For granules that are filtering materials, for example,
Those having an average particle diameter of 1 to 10 mmφ are used.

The ionization tank 4 ionizes water that has passed through the filter 11 and separates the water into alkaline ionic water containing positive ions and acidic ionic water containing negative ions. The ionized water ionized in the ionization tank 4 is drained from an alkaline ionized water drainage channel 12 and an acidic ionized water drainage channel 13. The ionization tank 4 is provided with a plus electrode 5 for obtaining acidic ionized water from flowing water and a minus electrode 6 for obtaining alkaline ionized water. The electrodes 5 and 6 of the ionization tank 4 are connected to a power supply 7 via a changeover switch 14.

The negative electrode 6 is also used as a case. The case is made of a conductive and corrosion-resistant metal, such as stainless steel, and is made into a cylindrical tank type that can withstand the pressure of tap water. The lower end of the case is connected to a discharge pipe of a filter 11, and the upper end is connected to an alkaline ionized water drainage channel 12 and an acidic ionized water drainage channel 13.

The plus electrode 5 is formed in a columnar shape and is provided at the center of the case. The plus electrode 5 has ionization
When this occurs, negative ions such as chloride ions gather.
The positive electrode 5 is made of a material having sufficient corrosion resistance to chlorine ions. As the positive electrode 5, for example, one obtained by coating the surface of titanium with iridium dioxide can be used. Both ends of the positive electrode 5 are insulated and project outside the case. A non-conductive material is used for the supporting portion of the plus electrode 5 of the case.

The positive electrode 5 and the negative electrode 6 are connected to a DC power source 7 via a changeover switch 14.
The output voltage of the power supply 7, that is, the voltage between the electrodes 5 and 6, depends on the flow rates of the alkaline ionized water and the acidic ionized water, the area of the electrodes 5 and 6, and the required ion concentration contained in the alkaline ionized water and the acidic ionized water. Decide in consideration. Usually, the voltage between the electrodes 5 and 6 is adjusted in the range of 20 to 100 volts.

The content of ions ionized in the ionization tank 4 is as follows:
It is proportional to the current between the electrodes. The current between the electrodes is approximately proportional to the voltage. Therefore, the voltage between the electrodes is set so that the ion concentration of the alkaline ionized water and the acidic ionized water is set to the optimum value. When the voltage between the electrodes is increased, the concentration of ions contained in the alkaline ionized water and the acidic ionized water increases. The optimum value of the ion concentration of the alkaline ionized water and the acidic ionized water differs depending on the application. By adjusting the voltage between the electrodes, ion water optimal for the application can be obtained.

A perforated plate 15 is provided between the plus electrode 5 and the case, as shown by a chain line. The perforated plate 15 is formed in a cylindrical shape and is separated in the vicinity of the plus electrode 5 and the minus electrode 6 to prevent mixing of the acidic ion water and the alkaline ion water. The alkaline ionized water drainage channel 12 is connected to the center of the plate material closing the upper end of the perforated plate 15. The acidic ionized water drainage channel 13 is opened at the upper end of the outer peripheral portion of the case.

The alkaline ionized water and the acidic ionized water discharged from the ionization tank 4 are simultaneously discharged. When only one ionized water is drained, the concentration of the other ionized water gradually increases. Therefore, it is not preferable to discharge only one of the alkaline ionized water and the acidic ionized water.

The apparatus shown in FIG. 1 performs cleaning by applying a reverse voltage to the electrodes 5 and 6. This invention does not limit the structure for electrically cleaning the electrodes 5 and 6 to the structure shown in FIG. As shown by a chain line in FIG. 2, it is also possible to provide a cleaning electrode and apply a voltage to the cleaning electrode to clean the electrode. The cleaning electrode applies a negative voltage to the positive electrode 5 and a positive voltage to the negative electrode 6 when cleaning the electrode.

In the water purifier having the electrodes cleaned, the switch 14 is set to the solid line position in FIG. 1, the valve is opened to supply water, and a voltage is applied to the electrodes to drain the ionic water.

FIG. 3 shows a cross-sectional shape of the switching valve 3 connected to the main body 1 through the hose 10. The switching valve 3 shown in this figure has a spherical switching ball 16 built in a casing 25. The switching ball 16 is rotatably disposed in a casing 25 via a gasket 17.
8 and rotated. The switching ball 16 is provided with two flow paths of a purified water path 16A and a non-purified water path 16B. As shown in FIGS. 3 and 4, the non-pure water passage 16 </ b> B is provided to pass through the center of the switching ball 16. As shown in FIG. 4 and FIG.
Are provided in the shape of a groove on the outer periphery.

As shown in FIG. 3, the casing 25 has a water supply port 19 connected to a faucet serving as a water drain valve 2 opened at an upper end, and a discharge port 20 for discharging non-ionized water opened at a lower end. An inflow port 21 for supplying water to the main body 1 is provided on the right side of the switching ball 16, and a purified water discharge port 22 is opened below the inflow port 21 so as to communicate with a discharge port 20.

The switching valve 3 having this structure is such that when the switching ball 16 is brought to the position shown in FIG.
9 flows into the non-clean water passage 16B of the switching ball 16
And is discharged from the discharge port 20 at the lower end. When the switching ball 16 is rotated by 90 degrees to the position shown in FIG.
Water flowing into the water supply port 19 flows into the inflow port 21 through the water purification passage 16A. The water at the inflow port 21 is transferred to the main body 1 through the hose 10, and the alkaline ionic water separated into ionic water at the main body 1 flows into the ionic water outlet 20,
It is discharged from the discharge port 20.

The inlet 21 is provided with a constant flow valve 9 for supplying water to the main body 1 at a constant flow rate via the hose 10. FIG. 6 shows a sectional structure of the constant flow valve 9. The constant flow valve 9 shown in this figure is a rubber plate having a through hole at the center. When the water pressure on the left side in the figure increases and the flow rate increases, the rubber plate of this structure is elastically deformed as shown by the broken line in the figure, and the inner diameter φ1 of the central through hole decreases to φ2, and the flow rate decreases. Adjust less. Conversely, when the pressure on the left side of the rubber plate decreases and the flow rate decreases, the amount of deformation of the rubber plate decreases, and the inner diameter of the through hole approaches φ1. Therefore, a decrease in the flow rate is reduced. That is, in the constant flow valve 9 having this structure, as the water pressure on the left side of the rubber plate increases and the flow rate increases, the inner diameter of the through hole decreases. When the inner diameter of the through hole is reduced, the pressure loss of the water passing through the rubber plate is increased, and the increase in the flow rate is suppressed. The constant flow valve 9 having this structure has a feature that the flow rate can be controlled with an extremely simple structure. However, the device of the present invention does not specify the structure of the constant flow valve to this structure. As the constant flow valve, any type of mechanism that prevents the flow rate from increasing can be used.

Further, the switching valve 3 shown in FIG. 3 has a check valve 23 connected to the purified water drain port 22. The check valve 23 prevents the water of the discharge port 20 from flowing back to the main body 1 in a state where the switching ball 16 is switched to the position shown in FIG. When the switching ball 16 is set to the position shown in the figure and the drain valve 2 is opened,
The water flows into the main body 1 through the hose 10 from the ion water drainage channel at the water pressure of the discharge port 20. The main body 1 has a structure in which water flows backward from the purified water discharge port 22 because the drain path of the acidic ionized water is opened. The switching valve 3 provided with the check valve 23 at the purified water discharge port 22 has a feature that water can be prevented from flowing back into the main body 1.

The switching valve 3 shown in FIG. 1 comprises an elastic plate 23A and a ring 23B. As shown in FIG. 7, the elastic plate 23A has a rubber-like elastic sheet connected at one point to a periphery of a disk provided at the center by a bendable arm. The elastic plate 23A of this shape cuts the outer diameter of the disk provided at the center larger than the inner diameter of the through hole of the ring 23B. When water pressure is applied in the direction indicated by arrow A in FIG. 6, the switching valve 3 elastically deforms as shown by the broken line, and water passes through. However, when water pressure is applied in the direction indicated by arrow B, the disc comes into close contact with ring 23B and water cannot pass through. That is, water passes in the direction of arrow A, but does not pass in the direction of arrow B.

The inflow port 21 and the purified water discharge port 22 of the switching valve 3 are connected to the main body 1 via the hose 10. Inlet 2
1 is connected to the inflow side of the main body 1, and the ionic water drainage channel is connected to the discharge side of alkaline ionic water.

Further, the switching valve 3 shown in FIG.
In order to connect 9 to a water tap, a connecting cylinder 24 provided with an internal thread on the inner surface is rotatably connected to a water supply port 19. The connection cylinder 24 is provided with a flange at the lower end and is connected to the casing 25. The water supply port 19 is provided with a ring-shaped packing. The switching valve 3 having this structure presses the packing against the lower end face of the faucet, and connects the connecting cylinder 24 by screwing it into a male screw provided at the lower end of the faucet. Thus, the switching valve 3 that can be connected to the faucet via the connecting cylinder 24 that can rotate with respect to the casing 25 has a feature that the direction of the casing 25 can be adjusted and connected to the faucet.

[0034]

Advantages of the Invention The water purification apparatus of the invention has a characteristic that even if the supply water pressure fluctuates, the concentration change of the ionic water can be suppressed in an ideal state. This is because a constant flow valve is connected to the inflow port of the switching valve to prevent fluctuation of the amount of water supplied to the main body by the constant flow valve. The body into which water flows at a constant flow rate can control the current between the electrodes to a constant value and control the concentration of the discharged ionic water within a certain range.

Further, the water purifying apparatus of the present invention is notable.
The length can be switched by using a constant flow valve together with a pressure reducing valve.
Reduce the water pressure acting on the hose connecting the valve and the body.
To prevent the hose from coming off or being damaged
What you can do. Constant flow valve controls the flow constant
Therefore, it is possible to control
There is a head. However, a conventional device with a built-in constant flow valve in the body
Is a hose that connects the body to the switching valve by a constant flow valve
The adverse effect of increasing the water pressure occurs. Prevent this adverse effect
To stop it, install a pressure reducing valve on the discharge side of the switching valve, and
The problem can be solved by a structure in which the water pressure is reduced and supplied to the hose.
However, this structure is
Not only complicates the structure of the switching valve but also reduces it to a switching valve.
The pressure valve will be provided with a constant flow valve in the body,
The structure of the body to considerable complexity to increase the manufacturing cost by. This
Invented water purifier solves this disadvantage with unique structure
It was a success. In other words, water purification of this invention
The device is equipped with a constant flow valve at the inlet of the switching valve.
The constant flow valve is also used as a pressure reducing valve.
Unique structure for supplying tap water to hoses, special decompression
Reduce the water pressure acting on the hose without using a valve
That was successful. Therefore, in this invention
The water purification system has an extremely simple structure,
The ON water concentration can be controlled uniformly,
It realizes extremely excellent features that can effectively prevent breakage.
Due to this unique structure, it is used in areas where tap water pressure is high
Even if it does, high water pressure does not act on the hose.
Since high pressure can be prevented from being applied to the hose, it is not necessary to use a thick hose that can withstand high pressure, and there is a feature that the hose can be conveniently installed using a thin hose.

Further, since water is supplied to the main body at a reduced pressure by the constant flow valve, high-pressure water does not flow into the inflow side of the main body, and it is necessary that the main body inflow side be structured to withstand high pressure. Absent. For this reason, the design of the main body is simple, and the feature of mass production at low cost is realized.

Further, the water purification apparatus of the present invention is provided with a switching valve having a switching ball incorporated in the casing, and by rotating the switching ball, water flowing into the water supply port flows into the main body or flows into the main body. It has been switched to a state where it is not allowed. For this reason, by rotating the switching ball, there is a feature that the water drained from the outlet can be switched between filtered purified water and unfiltered water for convenient use.

[Brief description of the drawings]

FIG. 1 is a sectional view of a water purification device showing one embodiment of the present invention.

FIG. 2 is a sectional view of a water purification apparatus showing another embodiment of the present invention.

FIG. 3 is a sectional view showing an example of a switching valve of the water purification device of the present invention.

FIG. 4 is a sectional view showing a switching ball of the switching valve.

FIG. 5 is a sectional view showing a state in which the switching ball shown in FIG. 4 is rotated.

FIG. 6 is a sectional view showing an inflow port and a purified water discharge port.

FIG. 7 is a front view showing an elastic plate of the check valve;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main body 2 ... Drain valve 3 ... Switching valve 4 ... Ionization tank 5 ... Electrode (+ side) 6 ... Electrode (-side) 7 ... Power supply 8 ... Drain port 9 ... Constant flow valve 10 ... Hose 11 ... Filter 12 ... Alkaline Ion water drainage channel 13 ... Acidic ion water drainage channel 14 ... Changeover switch 15 ... Perforated plate 16 ... Switching ball 16A ... Water purification channel 16B
... Non-purified water channel 17 ... Gasket 18 ... cock 19 ... water supply port 20 ... discharge port 21 ... inflow port 22 ... purified water discharge port 23 ... check valve 23A ... elastic plate 23
B: Ring 24: Connection tube 25: Casing

Claims (1)

(57) [Scope of request for utility model registration] 1. A body (1) for energizing incoming water to separate it into alkaline ionized water and acidic ionized water, and a switching valve (3) for connecting the body (1) to a tap water drain valve (2). The switching valve (3) has a built-in switching ball (16) rotatably disposed in the casing (25), and the switching ball (16) has a water purification passage (16A) Ａa non-water purification passage ( 16
B) and the casing (2) of the switching valve (3).
5) a water inlet (19) connected to the drain valve (2);
And an outlet (20), an inlet (21) connected to the main body (1), and a purified water drain (22) are opened, and the purified water drain (22) is connected to the outlet (20). When the switching ball (16) is rotated in the casing (25), the switching ball (16) is connected to the water purification passage (16A).
The water supply port (19) is connected to the inflow port (21) via a non-water purification channel (16B), and the water supply port (19) is connected to the discharge port (20) and the purified water discharge port (22) via the non-water purification channel (16B). With the switching valve (3), the water discharged from the tap water drain valve (2) is used to ionize the water into ionized water. (8) In the water purification apparatus having a switching valve configured to flow water by switching, the inflow port (21) of the switching valve (3) and the purified water discharge port (22) are connected via a hose (10). The water purification passage (16) is connected to the main body (1) and is provided with a switching ball (16) of the switching valve (3).
With A) connecting the water supply port (19) to the inflow port (21), the water supplied from the water supply drain valve (2) to the water supply port (19) flows through the water purification channel (16A) and the inflow port (21). ) And the hose (10), flow into the main body (1), and the ionized water ionized by the main body (1) passes through the hose (10), the purified water drainage port (22), and the discharge port (20). The main body (1) is connected to the inflow port (21).
A constant flow valve (9) is provided to limit the flow of tap water.
The constant flow valve (9) is provided with a water supply port (19).
Used together with a pressure reducing valve to reduce the pressure of tap water flowing from
To reduce the pressure of tap water discharged from the inlet (21).
Press and let flow into body (1) via hose (10)
A water purification device having a switching valve, wherein the water purification device is configured as described above .