JP3299012B2 - Water purifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifier used for obtaining raw water by filtering raw water, and more particularly to a water purifier in which a water flow switching valve and a water purifier main body are separated.

[0002]

2. Description of the Related Art In recent years, it has been strongly pointed out that tap water has become bad. The causes include chlorine, rust, odor, bacteria, and the like.
Furthermore, recently, it has been pointed out that trihalomethane, which is a carcinogen, exists in tap water. Under these circumstances, various types of water purifiers that remove harmful substances for the human body are attracting attention. Such water purifiers are mainly made of activated carbon used for business,
And what used both activated carbon and a hollow fiber membrane filter is known.

[0003]

However, in the conventional water purifier having the above-described structure, particularly in a stationary water purifier in which the water flow switching valve and the water purifier main body are separated, consideration must be given to the attachment and detachment of the water purifier unit to be used. Although the water purifier unit can be replaced, the operation is complicated. This is a problem, especially when a water purifier is rented and the water purifier unit is replaced in a rental company, a large amount of replacement must be performed.

In a water purifier using activated carbon as a water purifier unit, a non-woven fabric, a filter paper, or the like is used as a part of a filter layer. Therefore, when a continuous water purification operation is continued, the water purification operation is normally performed. Can be done,
If you stop the water purification operation and try to resume after stopping the supply of raw water, the fine activated carbon will flow out and it will be black water, so it will be the first time when a certain amount of water is flowed and the outflow of fine activated carbon stops. There was a problem that had to start using.

Further, in a water purifier using a hollow fiber membrane filter as a water purifier unit, although the hollow fiber membrane filter has a high purification function, it cannot be reused when clogging occurs and must be discarded. Because it does not become
There was a problem that the maintenance cost of the water purifier increased.

An object of the present invention is to solve the above-mentioned problems,
It is an object of the present invention to provide a water purifier in which replacement of the water purifier unit is easy and, in a preferred example, the activated carbon can be prevented from flowing out when activated carbon is used and maintenance costs can be reduced.

[0007]

SUMMARY OF THE INVENTION A water purifier according to the present invention is a water purifier unit having a raw water inlet and a water purifier outlet; and a cover for detachably holding the water purifier unit. A water inlet having a pipe inlet, a water purifier receiving portion for receiving the water purifier unit, and standing on the water purifier receiving portion, containing a raw water supply pipe disposed through the raw water supply pipe inlet,
An undercover consisting of a supporting portion having an attaching portion at an upper portion; and a raw water supply port connected to a raw water supply pipe on a surface which is detachably attached to the attaching portion of the supporting portion of the undercover and which is in contact with the water purifier unit. It has a water purification outlet to be taken out, and the raw water inlet and raw water supply port are connected to the raw water supply outlet and the purified water discharge outlet at the position attached to the support part. And a lid having a configured nozzle for purifying purified water.

[0008]

In the above configuration, the water purifier unit is housed in the undercover and covered with the lid. The water purifier unit is covered with the lid, and in this state, the lid and the support portion of the undercover are simply connected. , Water purifier unit can be replaced. Therefore, the replacement work of the water purifier unit can be simplified. In addition, since the nozzle for discharging purified water is rotatably provided on the lid portion, the convenience in discharging purified water is improved.

[0009]

FIG. 1 is a view showing an external appearance of an example of a water purifier according to the present invention. In the example shown in FIG. 1, 1 is a water purifier unit,
Reference numeral 2 denotes an undercover comprising a water purifier receiving portion 3 for receiving the water purifier unit 1 and a support portion 4 provided upright from the receiving portion 3 and reference numeral 5 denotes a 360 ° rotatable nozzle 6 for discharging purified water. It is a lid part having. Hereinafter, each member will be described in detail.

FIG. 2 is a view showing an example of the under cover 2 constituting the water purifier of the present invention. In the example shown in FIG. 2, the under cover 2 is made of, for example, ABS resin. The water purifier receiving portion 3 is provided with a cavity 11 into which the bottom of the water purifier unit 1 is inserted, and a raw water supply pipe inlet for passing a raw water supply pipe (not shown) on a side surface of the bottom immediately below the support portion 4. 12. The support portion 4 is provided upright on the receiving portion 3, and has a recess 13 for accommodating the raw water supply pipe supplied through the raw water supply pipe inlet 12 inside the support portion 4. The mounting part 14 of the lid part 5 is provided above the supporting part 4.

The raw water supply pipe is provided with an orifice inside the hollow 13 so as to be constant even if the flow rate of the supplied raw water changes. Further, when a ceramic filter is used as the water purifier unit 1, for example, raw water heated to about 60 ° C. may pass therethrough, so that heat resistance is required. Therefore, it is preferable to form a raw water supply pipe from polyvinyl formal resin. .

FIG. 3 is a view showing an example of the lid 5 constituting the water purifier of the present invention. In the example shown in FIG. 3, the outside of the lid 5 is
And a top cover 24 integrally formed with the nozzle panel 23 to form a hemispherical top.
And a middle cover 25 that slides on the nozzle panel 23 and the top cover 24. The hose elbow 26 projecting from the middle cover 25 is connected to the distal end of the raw water supply pipe 27 via an O-ring 28, and the lower part of the middle cover 25 and the water purifier unit 1 are fixed and connected with a lock nut 29. are doing.

A bypass 33 is attached to the raw water inlet 31 and the purified water outlet 32 of the water purifier unit 1. The other end of the bypass 33-1 connected to the raw water inlet 31 is connected to the hose elbow 26, The other end of the bypass 33-2 connected to the purified water outlet 32 forms an opening 34 that opens upward at the center. An elbow seal 36 having a hollow portion 36-1 is fitted into the opening 34 via an O-ring 35, and the hollow portion 36-
1 has a nozzle elbow 3 also having a hollow portion 37-1.
7 are fitted via an O-ring 38. The other end of the nozzle elbow 37 and the nozzle 22 are connected via an O-ring 39.

When connecting the hose elbow 26 and the raw water supply pipe 27, the lid 4 and the under cover 2 are connected by a link 41-1 (41-2) projecting from the middle cover 25 to both sides of the hose elbow 26. And the hole of the retainer 42 provided inside the mounting portion 14 of the support portion 4 is engaged. That is, the link 41-1 (41-2) is connected to the spring 43-1 (43-) in the middle cover 25.
Since the pressing force is applied outward by the force of 2), when connecting the hose elbow 26 and the raw water supply pipe 27, the tapered portion at the tip of the link 41-1 (41-2) is pressed,
When the hose elbow 26 is finally connected to the raw water supply pipe 27, the tip of the link 41-1 (41-2) engages with the hole of the retainer 42, and the connection is completed.

At the same time as the connection between the lid 5 and the undercover 2, the raw water inlet 31 and the purified water outlet 32 of the water purifier unit 1 are connected to the bypass 33-1 of the bypass 33.
And 33-2 to function as a water purifier. The connected lid 5 is removed from the under cover 2 and
The link 41-1 (41-2) is linked to the button 44-1 (44-
This can be done by opening the tip of 2) from the hole of the retainer 42.

The mechanism for rotating the nozzle cap 21 and the nozzle 22 in the cover 5 by 360 ° is as follows. That is, the protrusion facing the inside of the middle cover 25 is engaged with the groove of the rail member 51 fixed to the top cover 24, and the top cover 24 and the middle cover 25 are rotatably connected to each other. Are rotatable via O-rings 35 and 38 between the opening 34 and the elbow seal 36 and between the hollow portion 36-1 of the elbow seal 36 and the tip of the nozzle elbow 37, respectively. Therefore, since the rotation is performed via the double O-ring, the resistance at the O-ring can be reduced, and the rotation of the nozzle is smoothened. Further, by using polyacetal resin as the material of the rail member 51, the sliding performance in the groove of the rail member 51 is enhanced, and the rotation of the nozzle is also smoothed.

FIG. 4 is a view showing an example of the bypass 33 constituting the water purifier of the present invention. In the example shown in FIG. 4, the same members as those described in FIG. 3 are denoted by the same reference numerals, and description thereof will be omitted. In the bypass 33, the raw water inlet 31 side of the bypass passage 33-1 and the bypass passage 33-2.
On the side of the purified water outlet 32, connecting portions 61 and 62 for fixing the bypass 33 in the middle cover 25 are provided, and step portions 63 and 64 corresponding to the tip shapes of the raw water inlet 31 and the purified water outlet 32 are provided. Is provided. A groove 65 for installing an O-ring is provided at an end of the bypass passage 33-1 on the hose elbow 26 side.

FIG. 5 shows an example of an elbow seal 36 constituting the water purifier of the present invention, and FIG.
It is a figure which shows an example of each. In the example shown in FIG. 5, a groove 71 for installing the O-ring 35 is provided on the outer peripheral portion of the elbow seal 36 fitted into the opening 34 of the bypass 33. In the example shown in FIG. 6, a groove 7 for installing an O-ring 39 is provided at the tip of a nozzle elbow 37 fitted into the hollow portion 36-1 of the elbow seal 36.
2 and a step 73 for inserting the end of the nozzle 2 at the other end. In addition, a projection 74 whose upper end follows the inner surface shape of the top cover 24 is provided above the nozzle elbow 37.

FIG. 7 is a view showing an example of a hose elbow 26 which constitutes the water purifier of the present invention. An O-ring 2 is provided around the end of the hose elbow 26 on the raw water supply pipe 27 side.
8 is provided, and a groove 76 for mounting an end of the bypass passage 33-1 of the bypass 33 is provided at the other end.

FIG. 8 is a view showing an example of the water purifier unit 1 in the water purifier of the present invention. In the example shown in FIG.
Reference numeral 81 denotes an outer case that is liquid-tight by installing a lid 84 provided with a raw water inlet 31 and a purified water outlet 32 on the upper surface, 85 denotes a filtration layer made of activated carbon filled in the outer case 81, and 86 denotes a filtration layer. A predetermined filter 87 is provided with a filter 86 at the front end and a water purifier outlet 83 at the rear end.
The filter 86 and the flux bypass 87 are connected to the filter 8.
8.

Reference numeral 89 designates a position of the flux bypass 87, and the flux bypass 87 and the purified water outlet 32.
And a net 9 for preventing the activated carbon constituting the filtration layer 85 in the outer case 81 from flowing out while ensuring the connection with the filter 9.
0, a net cap which is provided on the entire portion other than the portion through which the flux bypass 87 passes. It is a projection to prevent it.

In the water purifier unit 1 having the structure shown in FIG. 8, raw water supplied from the raw water inlet 31 into the outer case 81 is supplied to the filtration layer 85 made of activated carbon via the net cap 9. The reduced water that has passed through the filtration layer 85 becomes purified water, passes through the filter 6 at the bottom of the outer case 81, further passes through the flux bypass 87,
Water can be taken out from the purified water outlet 32 as purified water.
Therefore, even if the supply of raw water is stopped and then restarted, the activated carbon in the fine powder can be prevented from flowing out, the cost can be reduced, and the filter unit is used as a filter, making it easy to replace the filter. it can.

FIG. 9 is a view showing another example of the water purifier unit 1 in the water purifier of the present invention. In the example shown in FIG. 9, the water purifier unit 1 includes, in an outer case 102, a filtration layer 111 containing at least activated carbon,
First and second filter layers 121A and 121B made of nonwoven fabric, filter paper, etc. for holding the unit 11 integrally, an aluminum plate 131, and a ceramic membrane filter 141
And are fixed. That is, the packing 105, the ceramic membrane filter 141, and the like are placed from the bottom in the outer case 102 made of stainless steel or the like having a bottomed cylindrical shape.
A second filter layer 121B, a filter layer 111, a first filter layer 121A, and an aluminum plate 131 are stacked, and a holding member 106 having a raw water inlet 31 and a purified water outlet 32 is placed thereon.
Is fixed by the stopper 108 in a state where the seal is taken.

In the water purifier unit having the above structure, the raw water flowing into the outer case 102 from the raw water inlet 31 is
Aluminum plate 131, first filter layer 121A,
The water passes through the filter layer 111 containing at least activated carbon, the second filter layer 121B, and the ceramic membrane filter 141, and purifies the filtered water.
As shown in FIG. 9 (b), it is configured to be taken out from the outside through the purified water outlet 32. Therefore, first, the aluminum plate 131 and the filtration layer 1 containing at least activated carbon are used.
Of the first and second filter layers 1 and 2 by forming a voltaic cell between the first and second filter layers 1.
The ceramic membrane filter 14 which removes large dusts and the like and reduces the flow rate to a constant flow rate by using 21A and 121B.
1, a longer service life can be achieved, and chlorine and trihalomethane can be removed by activated carbon.

The present invention is not limited to the above-described embodiment, but can be variously modified and changed. For example, in the above-described embodiment, as an example of the water purifier unit 1, an activated carbon or a combination of activated carbon and a ceramic membrane filter has been described. However, it goes without saying that a water purifier unit having another configuration can be used.

[0026]

As is apparent from the above description, according to the present invention, since the water purifier unit is housed in the under cover and covered with the lid, the water purifier unit is covered with the lid.
In this state, the water purifier unit can be replaced simply by connecting the lid and the support of the undercover. Therefore, the replacement work of the water purifier unit can be simplified. In addition, since the nozzle for discharging purified water is rotatably provided on the lid portion, the convenience in discharging purified water is improved.

Furthermore, when activated carbon, which is a preferred example of the present invention, is used as the water purifier unit, it is possible to prevent the outflow of activated carbon, and to use both a chemical end, which is a preferred example of the present invention, and a ceramic membrane filter. Since the ceramic membrane filter can be used repeatedly, maintenance costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a view showing an appearance of an example of a water purifier of the present invention.

FIG. 2 is a view showing an example of an under cover constituting the water purifier of the present invention.

FIG. 3 is a view showing an example of a lid constituting the water purifier of the present invention.

FIG. 4 is a diagram showing an example of a bypass constituting the water purifier of the present invention.

FIG. 5 is a view showing an example of an elbow seal constituting the water purifier of the present invention.

FIG. 6 is a view showing an example of a nozzle elbow constituting the water purifier of the present invention.

FIG. 7 is a view showing an example of a hose elbow constituting the water purifier of the present invention.

FIG. 8 is a view showing an example of a water purifier unit constituting the water purifier of the present invention.

FIG. 9 is a view showing another example of the water purifier unit constituting the water purifier of the present invention.

[Explanation of symbols]

1 water purifier unit, 1 under cover, 3 water purifier receiving section, 4 support section, 5 lid section, 6 nozzles, 31 raw water inlet, 32 purified water outlet, 33-1 and 33-2 bypass.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-193389 (JP, A) JP-A-6-296960 (JP, A) JP-A-2-112390 (JP, U) (58) Investigation Field (Int.Cl. ⁷ , DB name) C02F 1/28 C02F 1/44 B01D 35/04

Claims (4)

(57) [Claims] 1. A water purifier unit having a raw water inlet and a water purifier outlet; a cover for detachably holding the water purifier unit, having a raw water supply pipe inlet and receiving the water purifier unit. And an undercover comprising a water purifier receiving portion for supporting the raw water supply pipe arranged upright on the water purifier receiving portion and arranged through the raw water supply pipe inlet, and having a mounting portion at an upper portion. The undercover has a raw water supply port connected to a raw water supply pipe and a purified water discharge port for taking out purified water, and is attached to the support section so as to be detachably attached to the mounting section of the support section of the under cover; A lid having a raw water inlet and a raw water supply port at the position, a purified water outlet and a purified water discharge port connected thereto, and a rotatable water discharge nozzle configured to be rotatable in communication with the purifier discharge port; ;
A water purifier characterized by comprising: 2. The water purifier unit, wherein a filter layer containing at least activated carbon, a filter layer integrally holding the filter layer, and a ceramic membrane filter are fixed inside an outer case, and the raw water is at least The water purifier according to claim 1, wherein the water purifier is configured to transmit through a filtration layer, the filter layer, and the ceramic membrane filter. 3. The water purifier according to claim 2, wherein the water purifier unit further includes an aluminum plate inside the outer case, and is configured to ionize water between the aluminum plate and the filtration layer. 4. A water purifier unit comprising: a filter layer made of activated carbon in an outer case; a polyvinyl formal resin filter for further filtering raw water supplied from a raw water inlet and passing through the filter layer; The water purifier according to claim 1, comprising a filter unit comprising a filter and a flux bypass having a rear end connected to a water purifier outlet.