JPH0642955B2 - Water purifier - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a water purifying device for purifying raw water of a tap by being attached to a tap, and more specifically, directly connected to the tap through an arm-shaped introducing member. The present invention relates to a water purification device.

[Conventional technology]

In recent years, pollution by various organic and inorganic substances such as tap water has become a big problem. This is thought to be due to an increase in pollution of water supply sources and deterioration of water tanks and pipes found in high-rise houses and buildings. Reflecting such circumstances, in order to obtain more delicious and safe water, at home, office, restaurants, etc., various small water purification devices are generally used as tap water treatment devices that can be easily used. There is.

The above-mentioned tap water treatment device usually has a built-in tap water treatment material such as activated carbon, an ion exchange resin, and a separation filtration membrane, and these tap water treatment materials deodorize, clarify, sterilize, and soften tap water. Processing such as conversion is performed.

In the above tap water treatment device (water purification device), it is necessary to periodically replace it in order to maintain its treatment capacity at a high level for a long time, and the treatment material itself is made into a cartridge as a water purification device that can be easily replaced. What was done (JP-A-59
-76514, JP-A-60-190206, JP-A-49-127053, JP-A-55-1.
(Japanese Patent No. 67412, Japanese Utility Model Publication No. 57-60880, etc.)
Etc. are known.

The water purification device as described above includes a faucet-mounted purification device that is used by directly connecting the device body to a faucet (water pipe) through an arm-shaped introduction member that introduces raw water from the water supply into the device. Known to be.

[Problems to be Solved by the Invention]

However, since the faucet is usually located above the sink, when installing the faucet-mounting type purification device as described above on the faucet, the space above the sink, and also the substantially central portion thereof, is placed in the main body of the device. There is a problem that the work will be obstructed and the work such as washing dishes in the sink will be hindered.

Therefore, an object of the present invention is to provide a faucet-mounted purifying device which does not interfere with the work in the sink and which can be used as the original water supply.

[Means for Solving the Problems]

The present invention is a water purification apparatus in which a water purification cartridge is detachably attached to a block base having a raw water supply unit and a purified water delivery unit, wherein the block base is a water pipe connection in the raw water supply unit. Is connected to an arm-shaped introduction member having a section, and the introduction member is provided with a flow path and a raw water outlet section for supplying tap water to the raw water supply section. Are connected to the water pipe connection portion, and the water flow can be switched to either one by a switching valve, and the introduction member is configured to be rotatable around the water pipe connection portion. The above object is achieved by providing a water purification device characterized by the above.

[Operation] In the present invention, the introduction member for directly connecting the device body to the faucet (water pipe) is made rotatable at the water pipe connection portion, and the water flow can be switched. The apparatus main body is moved to a place such as a corner of the sink where it does not interfere, and the upper side of the sink is opened, and at the same time, raw water of the tap water can be directly used.

〔Example〕

 An embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a cross-sectional view showing the outline of a water purifier which is one embodiment of the present invention. The water purifying apparatus of the present embodiment is a faucet-mounting type purifying apparatus whose main body is composed of a water purifying cartridge 1 and a block base 2 to which the water purifying cartridge 1 is attached. Introducing member 3 is continuously provided, and a faucet (water pipe) is provided at a water pipe connecting portion 31 provided near the end of the introducing member 3.
4 is connected. This connection can be made by direct screwing together, for example, by using a faucet joint formed by union joining. It is to be noted that the perspective view of FIG. 3 shows the manner of use of the water purifying device in a more understandable manner.

First, the introduction member will be described.

The introduction member 3 is formed of a tubular body in which a flow path 32 for supplying raw water to the apparatus main body is formed, and the water pipe connection portion 31 is provided in the upper portion near the end portion thereof. The faucet is screwed and connected as shown in. The introducing member 3 is configured to be rotatable in the plane direction around the water pipe connecting portion 31.

Further, a raw water outlet 33 is provided below the inlet member 3 located below the water pipe connector 31.
A switching valve provided between the two is configured to switch the water flow from the tap water in either the direction of the flow path 32 or the direction of the raw water outlet 33. The raw water outlet 33 has a discharge pipe 34 as indicated by a phantom line.
It is desirable to connect

Further, the switching valve is composed of a valve body 35 and a valve seat 36, and by rotating a knob 37 attached at the end, the gap between the valve body 35 and the valve seat 36 can be adjusted. ing. The valve member 35 has a rubber member 38.
Is worn.

Next, the water purification cartridge 1 and the block base 2 that compose the apparatus main body of the present embodiment will be described in detail. 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 cylinder 102 has a double-structured container portion whose cross section is arranged concentrically inside the inner cylinder 102.
Is fixed to the outer container 101 with an O-ring at its upper end, or is closely fixed by heat fusion or the like. In addition, the water purification device includes the outer container 101 and the inner cylinder 1.
It has an inflow port 104 for allowing water to flow into an outer space 103 formed by No. 02 and an outflow port 106 for allowing water to flow out from an inner space 105 located inside the inner cylinder 102.

Further, the outer space 103 and the inner space 105 are water passage holes 10 formed at four locations around the inner cylinder 102.
Water is allowed to flow into the inner space 105 via the second filter 108, and is separated via the second filter 108 so that the next activated carbon 109 does not enter the inner space 105. And the 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 provided with a raw water supply unit 21 for injecting raw water into the inflow port 104 and a purified water delivery unit 22 for delivering purified water outflowed from the outflow port 106. There is. Further, the above-mentioned introducing member 3 is connected to the raw water supply unit 21 continuously with one end thereof fitted. Further, the purified water delivery part 22 is fitted in a close contact state with the outlet 106 via an O-ring wound around the outlet, and the purified water delivery part 22 has a Z-shaped discharge. The pipe 23 is rotatably connected.

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

First, the introducing member 3 is rotated to position the apparatus main body at an appropriate position in the sink, for example, at the center thereof. Next, the tap is opened, and further the knob 37 is turned to switch the flow of atoms (tap water) to the flow path 32 side, that is, the apparatus main body side, whereby the raw water can be sent to the raw water supply section 21, and thereafter, The water that has flowed into the outer space 103 from the raw water supply unit 21 through the inflow port 104 is the activated carbon 109.
And then through the water passage 107 and inside space 1
05, is further purified by passing through the separation / filtration membrane 110, and is passed through the outlet 106 to the purified water delivery unit 2
It is sent from 2. 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 beverages and the like.

Thus, 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 side of the raw water outlet 33, and the introduction member 3 is rotated so as not to interfere with the use of the sink. , Move to that corner, for example. By doing so, a sufficient space for the sink can be secured, and it can be easily used as ordinary water supply.

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

In the water purification cartridge, a first filter 113 sandwiched and fixed by a filter guard 111 located above and a mounting seat 112 located below is provided at the lower end of the outer space 103 with respect to the central axis of the inner cylinder 102. It is mounted vertically and prevents foreign matter such as iron rust from entering the outer space 103 and, at the same time, plays a role of enclosing the activated carbon 109 in the space.

The filter guard 111 is a member having a planar structure shown in FIG. 2 (a) and a sectional structure shown in FIG. 2 (b), and is formed around the inner side of the mounting seat 112. The holes 114 for guiding the raw water flowing from the inflow port 104 to the first filter 113 are evenly arranged.

In addition, the second filter 108 described above is the water passage hole 1 described above.
It is wound over a wide range beyond the formation region of 07 and around the entire outer periphery of the inner cylinder 102. Then, the inner cylinder 102 around which the second filter 108 is wound.
The outer peripheral wall of is formed one step lower than the adhesive outer peripheral surface,
A water pocket 115 formed of a narrow gap is formed between the outer peripheral wall and the inner surface of the second filter 108, and as a result, the filtration area of the second filter 108 can be increased and the processing capacity can be improved. Has been done.

The above-mentioned first filter 113 and second filter 108
Are preferably made of a porous material having a pore size of 0.5 to 5 μ, and specifically, are made of a nonwoven fabric made of a synthetic polymer compound such as polyolefin, polyester, or polyvinyl alcohol, cotton, cellulose, or the like. What has been done can be used.

In addition, the activated carbon 1 filled in the outer space 103 described above.
09 is residual chlorine in raw water, trace organic substances, hardness components (specifically, sodium, potassium, magnesium,
Ions such as iron. Water with a large amount of these has a bad taste. ), Etc., which acts to remove substances having an unpleasant odor or taste, and the average particle size of the activated carbon used in the present invention is preferably 5 to 100 mesh, and 8 to 60 mesh. More preferably. In addition, for the above purpose, the adsorbent is not necessarily limited to activated carbon, and an adsorbent such as an ion exchange resin, a chelate resin, or zeolite can be used together.

Further, the separation / filtration membrane 110 loaded in the above-mentioned inner space 105 allows the water that has passed through the activated carbon 109 to permeate therethrough, so that the above-mentioned underwater It acts to purify the iron colloid, dust, microscopic suspended substances such as bacteria existing in, by filtering.

The separation filtration membrane 110 in the present embodiment is composed of a hollow fiber bundle formed by bundling a large number of porous hollow fiber filtration membranes,
The hollow fiber bundle is converged and fixed by a tube plate 116 made of resin having both ends of a porous hollow fiber filtration membrane bent to form a U-shaped loop at the upper end portion at the lower end portion, and The both ends of the porous hollow fiber filtration membrane are opened at the lower surface of the tube sheet 116. However, the hollow fiber bundle is not limited to the one in which the porous hollow fiber filtration membrane is bent in a U shape at the upper end portion as described above, and has a structure in which the upper end portion is solidified and sealed with resin. Good.

As the porous hollow fiber filtration membrane applied to the hollow fiber bundle,
The film thickness is preferably 30 to 200 μ,
It is more preferable that the average pore size of the fine pores is 0.
The porosity is preferably 20 to 90% by volume, more preferably 50 to 80% by volume. . Specifically, a porous hollow fiber filtration membrane of polyolefin type, polysulfone type, polyvinyl alcohol type, cellulose type, polymethyl methacrylate type, etc. can be used. Needless to say, the separation / filtration membrane filled in the inner cylinder 102 is not limited to the above-mentioned porous hollow fiber filtration membrane, and a porous flat membrane or the like can be used.

Further, in the present embodiment, both the inflow port 104 and the outflow port 106 are located near the lower end of the water purification cartridge, and conversely, the water passage hole 107 is located near the upper end of the water purification cartridge 1. There is. Therefore, the water purification cartridge 1 is formed in a compact parallel structure having a double structure in which its cross section is located concentrically, but for the water flow, the activated carbon 109 and the separation filtration membrane 11 are used.
0s are arranged in series, and each has a long flow channel length so that it can be sufficiently contacted with water. Therefore, the purifying performance originally possessed by the activated carbon 109 and the separation filtration membrane 110 can be sufficiently exhibited.

The water purification cartridge 1 is a block base 2
The water purification cartridge 1 can be easily replaced by rotating the water purification cartridge 1 by means of a threaded portion 24 at the upper end thereof.
However, the mounting method of the water purification cartridge 1 is not limited to the screwing method.

Further, the water purifying cartridge 1 is provided with an air venting mechanism 117 communicating with the inner space 105 on the upper wall surface thereof. This air bleeding mechanism 117 discharges the air in the water purification cartridge 1 easily and quickly when the raw water is introduced from the inflow port 104 to the raw water treatment unit composed of the activated carbon 109 and the like. belongs to. Note that actual air bleeding is possible by attaching a hydrophobic membrane that allows air but not raw water to the air vent of the air vent mechanism 117, or opens the air vent by touching a screw, or by hand. It can be carried out by a method such as pressing with to open the air vent port.

Excluding the activated carbon 109 and the separation filtration membrane 110,
Each member constituting the above water purifier is not particularly limited, but, for example, metals such as stainless steel, copper, aluminum, or alloys thereof, or AB
It is preferable to manufacture it with plastics such as S resin and polycarbonate resin.

The present invention has been specifically described above based on the embodiments, but it goes without saying that the water purifier of the present invention is not limited to the ones shown in the above embodiments.

For example, the introducing member can be variously changed as long as it is rotatable around the water pipe connection portion and has an arm-shaped tubular body provided with an arbitrary water flow switching means.

In addition, a check valve for preventing backflow from the water purification cartridge may be provided at an appropriate position, for example, a block-based raw water supply unit.

In addition, the block base is provided with a raw water supply unit that allows raw water to flow into the inlet of the water purification cartridge and a purified water delivery unit that can deliver purified water discharged from the outlet of the water purification cartridge. Needless to say, the specific structure can be variously changed, and the shape of the discharge pipe connected to the purified water delivery unit can be arbitrarily changed.

〔The invention's effect〕

The water purifier of the present invention is a faucet-mounted type, and can be used at a position where the sink is easy to use, and when not in use, it is moved to a corner of the sink that does not interfere with washing work, etc. Can be used.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the outline of a water purification apparatus which is an embodiment of the present invention, FIG. 2 (a) is a plan view showing a filter guard used in the above water purification apparatus, and FIG. 2 (b) is Its cross section,
FIG. 3 is a perspective view showing an outline of the water purification device. 1 ... Water purification cartridge 2 ... Block base, 3 ... Introducing member 101 ... Outer container, 102 ... Inner cylinder 103 ... Outer space, 104 ... Inflow port 105 ... Inner space, 106 ... Outflow port 107 ... Water hole 108 ... Second filter, 109 ... Activated carbon 110 ... Separation and filtration membrane 111 ... Filter guard 113 ... First filter 21 ... Raw water supply section, 22 ... Purified water delivery section 31 ... … Water pipe connection, 32 …… Flow path 33 …… Raw water outlet, 35 …… Valve

Claims (2)

[Claims] 1. A water purification apparatus 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 is a water pipe in the raw water supply section. It is connected to an arm-shaped introducing member having a connecting portion, and the introducing member is provided with a flow path for supplying tap water to the raw water supply section and a raw water outlet section. All of the parts are in communication with the water pipe connection part and the water flow can be switched to either one by a switching valve, and the introduction member is configured to be rotatable around the water pipe connection part. A water purification device characterized by being 2. The water purification cartridge has a double-structured container portion in which an inner cylinder is arranged inside an outer container, and an inlet for allowing water to flow into an outer space formed by the outer container and the inner cylinder. And an outlet for letting water 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 passage hole formed in the inner cylinder. It is also separated via a filter, the outer space is filled with activated carbon, and the inner space is loaded with a separation filtration membrane, and the raw water supply unit flows into the outer space through the inflow port. Water passes through the activated carbon, is then introduced into the inner space through the water passage hole, is further purified by passing through the separation and filtration membrane, and is delivered from the purified water delivery portion through the outflow port. The water purifier according to item (1).