JPH029487A - Water filter - Google Patents

Abstract

PURPOSE:To cause no obstacle in a water discharge operation and enable the original use of a potable water supply to be maintained by installing a draw-in member, which connects the main unit of a device to a tap, in a rotatable manner at an interconnection with a water supply pipe and making possible the switching of a water flow using a change-over valve. CONSTITUTION:First the main unit of a device is set to a bestsuited position for water discharge by allowing a draw-in member 3 to rotate at an interconnection 31 with a water supply pipe. Next a water tap is opened and a knob 37 is turned to move a valvular body 35. Consequently, the flow of untreated water (service water) is switched to a flow path 32 side, that is, the main unit side of the device, and this allows the untreated water to flow into an untreated water supply section 21. After this, the water passes through activated charcoal 109 in an external space 103 through an inflow port 104, then is introduced into an inner space 105 via a water passage port 107. Further, the water penetrates a separation filter membrane 110 to be filtered and the filtered water is delivered from a filtered water delivery section 22. After the use of a filter device, the knob 37 is reversed to switch the water flow to an untreated water draw-out section 33 side. At the same time, the draw-in member 3 is rotated to move it to a position where it is not in the way of water discharge.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a water purification device that is attached to a water faucet to purify raw water. The present invention relates to a water purification device used as a water purifier.

[Prior Art] In recent years, contamination of tap water and the like by various organic and inorganic substances has become a major problem. This is thought to be due to increased contamination of tap water sources and aging water tanks and pipes found in high-rise residences and buildings. Reflecting this situation, in order to obtain more delicious and safe water, various small water purification devices are being used as tap water treatment devices that can be used in homes, offices, restaurants, etc. has been done.

The above tap water treatment equipment usually has built-in tap water treatment materials such as activated carbon, ion exchange (H-fat), and separation filtration membranes, and these tap water treatment materials can deodorize, clarify, and sterilize tap water. , water softening, etc.

The above-mentioned tap water treatment equipment (water purification equipment) needs to be replaced periodically in order to maintain its processing capacity at a high level for a long time. (Japanese Unexamined Patent Application Publication No. 1983-1999)
Publication No. 76514, Japanese Unexamined Patent Publication No. 60-190206,
Utility Model Publication No. 49-127053, Utility Model Application No. 55-167
412, Japanese Utility Model Publication No. 57-60880, etc.) are known.

The above-mentioned water purification devices include faucet-mounted purification devices in which the main body of the device is directly connected to a faucet (water pipe) through an arm-shaped introduction member that introduces raw water from the tap into the device. It is known that there is.

[Problem to be solved by the invention]

However, since the faucet is usually located above the sink, when installing a faucet-mounted purifier like the one mentioned above, the space above the sink and the approximately central part of the device itself must be used. There is a problem in that the sink becomes obstructed, which hinders tasks such as washing dishes in the sink.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a faucet-mounted purifier that does not interfere with work in the sink and can also be used as a water supply.

[Means to solve the problem]

The present invention is a water purification device in which a water purification cartridge is removably attached to a block base having a raw water supply section and a purified water delivery section, wherein the block base has a filter 1 attached to the raw water supply section. is connected to an arm-shaped introduction member having a water pipe connection part, and the introduction member has a flow path for supplying tap water to the raw water supply part and a raw water output part force (
There is no installation number, and the cough flow path and raw water outlet are both above δ.
It communicates with the water pipe connection part and allows the water flow to be switched in either direction by a switching valve, and the introduction member is configured to be movable around the water pipe II connection part. The above object has been achieved by providing a water purification device characterized by the following.

[Effect]

In the present invention, the introduction member for directly connecting the device main body to the faucet (water pipe) can be moved simultaneously at the water pipe connection part, and the water flow can be switched, so that the device main body can be moved when the purification device is not in use. By moving it to a place where it does not get in the way, such as a corner of the sink, the upper part of the sink is opened, and at the same time, raw water from the tap can be used directly.

〔Example) An embodiment of the present invention will be described in detail based on the drawings.

FIG. 1 is a sectional view schematically showing a water purification device according to an embodiment of the present invention. This is a faucet-mounted purification device consisting of a block base 2, in which an arm-shaped introduction member 3 is connected to the block base 2, and a water pipe connection part provided near the end of the introduction member 3. Faucet (water pipe) at 31
4. This connection can be made by directly screwing together, for example, using a faucet joint formed by union joining.

Incidentally, the perspective view of FIG. 3 shows the manner of use of the water purification device more clearly.

First, the introduction member will be explained.

The introduction member 3 is a cylindrical body in which a flow path 32 for supplying raw water to the main body of the apparatus is formed, and the water pipe connection part 31 is provided at the upper part near the end of the introduction member 3. The faucets are screwed together and connected like this. The introduction member 3 is configured to be movable in the plane direction around the water pipe connecting portion 31.

Further, a raw water outlet section 33 is provided at the lower part of the introduction member 3 located below the water pipe connection section 31,
A switching valve provided between the two is configured to switch the water flow from the water supply to either the direction of the flow path 32 or the direction of the raw water outlet section 33. Note that the raw water outlet section 33 is connected to a discharge pipe 34 as shown by a virtual line.
It is desirable to connect them.

Further, the switching valve is composed of a valve body 35 and a valve seat 36, and the gap between the valve body 35 and the valve seat 36 can be adjusted by turning a knob 37 attached to the end. It has become. On the other hand, a rubber member 38 is attached to the valve body 35.
is crowned.

Next, the water purification cartridge 1 and block base 2, which constitute the main body of the apparatus of this embodiment, will be described in detail. Note that the water purification cartridge 1 is detachably attached to the block base 2.

The water purification cartridge 1 has a cylindrical outer container 101.
A circular inner cylinder 102 has a double structure j4 container part whose cross section is arranged concentrically inside the inner cylinder 10.
2 is tightly fixed at its upper end to the outer container 2=101 by pressing it with an O-ring or by heat fusion or the like. The water purification device also includes an inlet 104 that allows water to flow into an outer space 103 formed by the outer volume 21101 and the inner cylinder 102, and an inlet 104 that allows water to flow out from an inner space 105 located inside the inner cylinder 102. It has an outflow port 106 that allows the flow of water.

The outer space 103 and the inner space 105 are defined by water holes 10 formed at four locations around the inner cylinder 102.
7 to allow water to flow into the inner space 105, and is isolated via a second filter 108 to prevent the next activated carbon 109 from entering the inner space 105. And the above outer space 1
03 is filled with activated carbon 109 and the inner space 10
5 is loaded with a separation filtration membrane 110, and constitutes the water purification cartridge 1 in this embodiment.

Further, the block base 2 is formed with a raw water supply section 21 for causing raw water to flow into the inlet 104 and a purified water delivery section 22 for discharging purified water flowing out from the outlet 106. There is.

The above-mentioned introduction member 3 is connected to the raw water supply section 21 with one end thereof being fitted.

In addition, the purified water delivery section 22 is fitted with the outlet 106 in close contact via an O-ring wound around the outlet, and the purified water delivery section 22 has a Z-shaped discharge outlet. The tubes 23 are movably connected.

Next, the operation of this embodiment will be explained. In addition, in the figure, the flow of water is indicated by an arrow.

First, the introduction member 3 is moved to position the main body of the apparatus at an appropriate position in the sink, for example, in the center thereof.

Next, by opening the water faucet and further turning the knob 37 to switch the flow of raw water (tap water) to the flow path 32 side, that is, to the device main body side, raw water can be sent to the raw water supply section 21, and after that, Water flowing into the outer space 103 from the raw water supply section 21 via the inlet 104 passes through the activated carbon 109, then is introduced into the inner space +05 via the water passage hole 107, and is further filtered through the separation filtration. Membrane 1
10, is purified, and is sent out from the purified water delivery section 22 via the outflow port 106. As a result, the raw water is sufficiently purified, and the purified water can be taken out from the discharge pipe 23 and used for drinking or the like.

In this way, after the use of the purification device is finished, the knob 37 is rotated in the opposite direction to switch the water flow to the raw water outlet part 33 side, and the introduction member 3 is simultaneously moved to a position where it does not get in the way when using the sink. , for example, move it to that corner. By doing this, you can secure enough space for the sink and easily use it as a regular water supply.

Next, the water purification device of this embodiment will be described in further detail.

In the above-mentioned water purification cartridge, a first filter 113 which is clamped and fixed at the lower end of the outer space 103 by a filter guard 111 located above and a mounting seat 112 located below is arranged with respect to the central axis of the inner cylinder 102. The activated carbon 109 is installed vertically in the outer space 103, and serves to prevent foreign matter such as iron rust from entering the outer space 103, and at the same time, to confine the activated carbon 109 within the space.

The filter guard 111 is a member having a planar structure shown in FIG. 2(a) and a cross-sectional structure shown in FIG. Holes 114 for guiding raw water flowing in from the inlet 104 to the first filter 113 are evenly distributed.

Further, the above-mentioned second filter 108 is connected to the above-mentioned water passage hole 1.
It is wound over a wide range exceeding the formation area of 07 and around the entire outer periphery of the inner cylinder 102. and the inner cylinder 102 around which the second filter 108 is wound.
The outer circumferential wall of is one step lower (formed,
A water pocket 115 consisting of a narrow gap is formed between the outer circumferential wall and the inner surface of the second filter 108, and as a result, it is possible to increase the filtration area of the second filter 108, improving processing capacity. is being done.

The above-mentioned first filter 113 and second filter 108
It is preferable that each of these be made of a porous material having a pore diameter of 0.5 to 5 μm, and specifically, nonwoven fabrics made of synthetic polymer compounds such as polyolefin, polyester, and polyvinyl alcohol, cotton, cellulose, etc. can be used.

In addition, the activated carbon 109 (filled in the above-mentioned outer space 103) contains residual chlorine, trace organic substances, hardness components (specifically, sodium, potassium, magnesium, etc.) in the raw water.
Ions such as iron. The activated carbon used in the present invention has an average particle size of 5 to 100 mm.・It is preferable to use carbon fibers, and more preferably from 8 to 60 mesh.For the above purpose, activated carbon is not necessarily used, but ion exchange resins, chelate resins, zeolites, etc. It is also possible to use adsorbents in combination.

Further, the separation filtration membrane 110 loaded in the inner space 105 allows the water that has passed through the activated carbon 109 to permeate, thereby allowing the water to pass through the water through the fine pores formed in the wall of the separation filtration membrane 110. It functions to filter out and purify microscopic suspended substances such as iron colloid, dust, and bacteria that exist in the water.

The separation filtration membrane +10 in this example is composed of a hollow fiber bundle formed by bundling a large number of porous hollow fiber filtration membranes,
Both ends of the porous hollow fiber filtration membrane are bent to form a U-shaped loop at the upper end of the hollow fiber bundle, and both ends of the hollow fiber bundle are focused and fixed by a resin tube plate 116 located at the lower end. Both ends of the porous hollow fiber filtration membrane are opened at the lower surface of the tube plate 116. However, the hollow fiber bundle is not limited to one in which the porous hollow fiber filtration membrane is bent into a U-shape at the upper end as described above, but may have a structure in which the upper end is hardened and sealed with resin. Good too.

The porous hollow fiber filtration membrane applied to the above hollow fiber bundle is as follows:
It is preferable that the film thickness is 30 to 200μ, and 30 to 200μ.
-150μ is more preferable, and the average pore diameter of the micropores when measured with a mercury boron meter is 0,
The porosity is preferably 0.05 to 5μ, more preferably 0.1 to 2μ, and more preferably the porosity is 20 to 90% by volume, even more preferably 50 to 80% by volume. Specifically, porous hollow fibers such as polyolefin, polysulfone, polyvinyl alcohol, cellulose, and polymethyl methacrylate are used.
! l membrane can be raised. It should be noted that the separation illumination membrane filled in the inner cylinder 102 is not limited to the above-mentioned porous hollow fiber filtration membrane, and it goes without saying that a porous flat membrane can also be used. do not have.

In addition, in this embodiment, the inlet 104 and the outlet 106 described above are both located below the water purification cartridge and near the aperture, and conversely, the water passage hole 107 described above is located near the upper end of the water purification cartridge I. has been done. Therefore, although the water purification cartridge 1 is formed with a compact parallel structure consisting of a double structure whose cross section is located on concentric circles, the activated carbon 109 and the separation filtration membrane 11
0 are arranged in series, and each has a long flow path and is configured to be able to make sufficient contact with water. Therefore, the purification performance of the activated carbon +09 and the separation filtration membrane 110 can be fully exhibited.

In addition, the water purification cartridge 1 has a block base 2.
The water purification cartridge 1 can be easily replaced by rotating the water purification cartridge 1.

However, the method of attaching the water purification cartridge 1 is not limited to screwing.

Further, the water purification cartridge 1 is provided with an air vent mechanism 117 that communicates with the inner space 105 on its upper wall surface. This air vent R measure 117 is designed to easily and quickly discharge the air in the water purification cartridge I when raw water is introduced from the inlet 104 to the raw water treatment section composed of activated carbon lO9, etc. It is for. The actual air venting can be done by attaching a hydrophobic film that allows air to pass through but not raw water to the air venting port of the air venting mechanism 117, or by opening the air venting port by touching it with a screw, or by manually opening the air venting port. This can be carried out by a method such as pushing with a button to open the air vent.

In addition, excluding the above-mentioned activated carbon 109 and separation filtration membrane 110,
Each member constituting the water purification device is not particularly limited, but may be made of metals such as stainless steel, copper, aluminum, or alloys thereof, or AB
It is preferable to manufacture it from plastics such as S resin and polycarbonate resin.

Although the present invention has been specifically explained above based on Examples, it goes without saying that the water purifier of the present invention is not limited to what is shown in the Examples.

For example, the introducing member can be modified in various ways as long as it is an arm-shaped cylindrical body that can move together around the water pipe connection part and is provided with arbitrary water flow switching means.

Also, at an appropriate location, for example, the block-based raw water supply may be provided with a check valve to prevent backflow from the water purification cartridge.

In addition, the block base is equipped with a raw water supply section that allows raw water to flow into the inlet of the water purification cartridge, and a purified water delivery section that can send out purified water from the outlet of the water purification cartridge. If so, its specific structure can be changed in various ways, and it goes without saying that the shape of the discharge pipe connected to the purified water delivery section can also be changed.

〔Effect of the invention〕

The water purification device of the present invention is a faucet-mounted type, and can be used in an easy-to-use position in the sink. When not in use, it can be moved to a corner of the sink where it does not interfere with washing operations, etc., and used as a regular water supply. can do.

[Brief explanation of the drawing]

FIG. 1 is a sectional view schematically showing a water purification device according to an embodiment of the present invention, FIG. 2(a) is a plan view showing a filter guard used in the water purification device, and FIG. 2(b) is The sectional view and FIG. 3 are perspective views showing the outline of the water purification device. ■...Water purification cartridge 2...Block base 3...Introduction member 101
...Outer container 102...Inner cylinder 103...
Outer space 104... Inlet 105... Inner space 106... Outlet +07... Water hole 10B... Second filter 109... Activated carbon 11
0...Separation filtration membrane 111...Filter guard 113...First filter 21...Raw water supply part 22...Purified water egress part 31-...Water pipe connection part 33...Raw water outlet Part 32...Flow path 35...Valve body

Claims (2)

[Claims] (1) A water purification device in which a water purification cartridge is removably attached to a block base having a raw water supply section and a purified water delivery section, the block base having a water pipe connection section in the raw water supply section. The introduction member is provided with a channel for supplying tap water to the raw water supply section and a raw water outlet, and the channel and the raw water outlet are connected to an arm-shaped introduction member having a Both are connected to the water pipe connection section and are capable of switching the water flow to either one using a switching valve,
A water purification device characterized in that the introduction member is configured to be able to move together around the water pipe connection portion. (2) The water purification cartridge includes a double structure container portion in which an inner cylinder is disposed inside an outer container, an inlet that allows water to flow into an outer space formed by the outer container and the inner cylinder, and The inner cylinder has an outlet that allows water to flow out from an inner space located inside the inner cylinder, and the outer space and the inner space are communicated with each other through a water hole formed in the inner cylinder, and a filter is provided. The outer space is filled with activated carbon and the inner space is filled with a separation filtration membrane, and water flowing from the raw water supply section to the outer space via the inlet is , passing through the activated carbon, then being introduced into the inner space via the water passage hole, further passing through the separation filtration membrane to be purified, and being sent out from the purified water delivery section via the outlet. 1) The water purification device described above.