JPH057866A - Water purifying for direcr coupling to faucet, and body and cartridge used for this device - Google Patents

Abstract

PURPOSE:To obtain the water purifying device for direct coupling to a faucet which is low in maintenance and management costs, is hygienic, is easily usable, can prevent the propagation of viable bacteria at the time of water leakage, is compact and is low in cartridge resistance. CONSTITUTION:A cartridge 2 is freely attachably and detachably connected to a body 1 having a connecting means to the faucet A in the state of overlapping on the lower part of this body and 1st and 2nd outflow holes 11, 12 are formed in the bottom of the body 1. A discharge port 18b is formed in the bottom of the cartridge 2. A raw water discharge passage B which accepts the water from the 1st outflow hole 11 and allows the water to flow down to the discharge port 18b and a purifying passage C which accepts the water from the 2nd outflow hole 12, allows the water to flow down to the discharge port 18b and has a purifying means 19, are formed in the cartridge 2. A changeover means which selectively introduces the water from the faucet A to the 1st outflow hole 11 and the 2nd outflow hole 12 is provided to impart an antimicrobial property to the cartridge 2.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention is attached to a faucet,
A faucet direct connection type water purifier that switches between a raw water discharge state where the water from the faucet is discharged as it is and a purified water discharge state where purification water such as filtration and dechlorination is discharged, more specifically, a body equipped with a connection connecting means to the faucet And a cartridge provided with the purifying means is detachably connected and connected, and a switching means for selectively guiding water from the faucet is provided in the purifying passage having the purifying means and the raw water discharge passage. , A body and a cartridge used therein.

[0002]

2. Description of the Related Art In the above-described faucet direct connection type water purifier, when the filter is clogged or performance deteriorates, the water purifying function can be maintained by replacing the cartridge containing the filter. In addition, the switching means and the purifying means are assembled and integrated to be disposable (for example, those shown in Japanese Utility Model Publication No. 2-78663, Japanese Utility Model Publication No. 2-86689, and Japanese Utility Model Publication No. 2-86690). Compared to (), there is an advantage that the cost for maintaining the water purification function is low. As one having such an advantage, there is known one in which a cartridge is internally provided in a body and water is introduced from a faucet to a raw water discharge port or a purifying means through a gap between the body and the cartridge (for example, actual JP-A-63-29012, JP-A-62-109722, and JP-A-2-5776.
No. 6). Further, the switching means is configured to selectively supply water from the faucet to the raw water discharge port formed on the body and the cartridge inlet, and the raw water is directly discharged from the raw water discharge port to the outside of the cartridge. It is also known that the purified water from the outlet is directly discharged from the purified water outlet to the outside (for example, JP-A-61-28888 and JP-A-3-5772). Further, a faucet direct-coupled water purifier having a double filtration structure purification means using a hollow fiber membrane and granular activated carbon is known.

[0003]

However, the conventional techniques have the following drawbacks. That is, the former conventional technique is unsanitary because the outer peripheral surface that is touched by hand when replacing the cartridge forms a water channel.
Further, among the latter conventional techniques, JP-A-61-27888
According to the technique disclosed in the publication, since the raw water discharge port and the purified water discharge port are located apart from each other, it is easy to get confused when receiving the raw water or the purified water with a cup or the like, and the usability is poor. On the other hand, according to the technique disclosed in Japanese Utility Model Laid-Open No. 3-5772, the raw water discharge state and the purified water discharge state are switched by reversing the body around the horizontal axis. Although the position does not change during use, the residual water in the cartridge flows backwards and accumulates when the raw water is discharged and the cartridge is inverted, so if the purification means uses activated carbon, the accumulated water becomes dechlorinated water. , Unavoidable bacterial growth and unhygienic. Further, a hollow fiber membrane is expensive, has a large flow path resistance, and has a low running water velocity at the time of discharging purified water. An object of the present invention is to eliminate the above drawbacks.

[0004]

A characteristic structure of a faucet direct connection type water purifier according to the present invention is that the body is provided with a cartridge attaching means for detachably connecting and connecting a cartridge so as to overlap with a lower portion of the body, First and second outflow holes are formed in the bottom of the body, a discharge port is formed in the bottom of the cartridge, and the cartridge receives the water from the first outflow hole and causes the water to flow down to the discharge port. The raw water discharge passage is formed in the state, and the purification passage is formed in a state in which the water from the second outflow hole is received and allowed to flow down to the discharge port, and the water from the faucet is firstly formed as the switching unit. It is the point that means for selectively guiding to the outflow hole and the second outflow hole is provided. A characteristic configuration of a body according to the present invention is that a connecting means for connecting to a faucet and a cartridge attaching means for detachably connecting and connecting a cartridge provided with a purifying means in a state of being overlapped with a lower portion are provided, and a first portion is provided at a bottom portion. The outflow hole and the second outflow hole are formed to allow water from the faucet
Is provided with a switching means that selectively guides the outflow hole and the second outflow hole. A characteristic configuration of a cartridge according to the present invention is such that a cartridge is attached to a body through a cartridge attaching means, and a housing having a receiving opening at a ceiling portion and a discharging opening at a bottom portion is provided, and the first body of the body is provided.
A partition for partitioning the inside of the housing is provided in the raw water discharge passage for flowing water from the outflow hole to the discharge port and the purification passage for flowing water from the second outflow hole to the discharge port, and the purification passage is provided in the purification means. Is provided. And, the purifying means acts as a filter medium and is a porous molded fiber activated carbon whose surface is antibacterial, and the surface of a portion such as the housing and the partition where purified water comes into contact is antibacterial. Is desirable.

[0005]

By selecting the first outflow hole by the switching means, the raw water can be discharged using the discharge port as the raw water discharge port, and by selecting the second outflow hole, the discharge port can be discharged by the clean water discharge. Because purified water can be discharged as an outlet,
Although it is a switching type between raw water and purified water, it requires only one outlet. Moreover, since the raw water passage and the purification passage are both formed in the cartridge, the raw water passage and the purification passage are not contaminated by touching the hand when the cartridge is replaced. Moreover, in both the raw water discharge and the purified water discharge, the cartridge has its discharge port facing downward, so that the water in the purification passage does not flow backward. In particular, in the case of a water purifier in which antibacterial molded fiber activated carbon is provided as a purifying means and the surface of the portion in contact with purified water is antibacterial, in addition to filtration, dechlorination and removal of organic substances can be performed. Not only that, but due to dechlorination and removal of organic substances, an environment in which bacteria in the water in the purification passage are prone to grow, but sterile water can be provided by suppressing this. Therefore, an expensive hollow fiber membrane is not necessary and various bacteria are not accumulated, and a new, clean and safe one can always be installed in the faucet. Further, if the hollow fiber membrane is not used, the flow path resistance is reduced and the flow velocity at the time of water discharge can be increased.

[0006]

Therefore, according to the present invention, the maintenance cost is low, and it is hygienic and easy to use, and it is possible to prevent the growth of viable bacteria at the time of water retention, which is compact and has a small flow resistance. It has become possible to provide a direct connection type water purifier and a body and cartridge useful for it.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a faucet direct connection type water purifier comprises a body 1, a switching means, and a cartridge 2 which is detachably connected to the lower portion of the body 1. The body 1 is a body 3 having a connecting and connecting means to the faucet A.
And a disc-shaped dispersion plate 5 which is fitted and connected to the body body 3 to form a chamber 4 having a circular shape in a plan view at the lower part of the body body 3, and the cartridge 2 is detachably connected and connected to the body body 3. Cartridge mounting means for The connection connecting means is a locking ring 6 that is screwed and attached to the tip of the faucet A, and a fixed ring that is screwed to the body body 3 to press and fix the central portion of the body body 3 to the locking ring 6. 7, and packings 8 and 9 are provided between the locking ring 6 and the faucet A and between the locking ring 6 and the fixed ring 7, respectively. An inflow port 10 for discharging water from the faucet A into the chamber 4 in a downward direction is formed in a central portion of the body body 3 facing the mouth of the faucet A. In the dispersion plate 5 which is the bottom of the body 1, one first outflow hole 11 to the outside of the chamber 4 is formed, and a plurality of second outflow holes 1 to the outside of the chamber 4 are formed.
2 are dispersed and formed. Reference numeral 13 is a packing that seals between the dispersion plate 5 and the body body 3, and 5a is fitted in a circumferential groove formed in the body body 3 to position the dispersion plate 5 concentrically with respect to the body body 3. A protrusion 3a is a protrusion that engages with a notch formed in the dispersion plate 5 to prevent the dispersion plate 5 from rotating with respect to the body body 3. The switching means is
Means for selectively guiding water from the inflow port 10 to the first outflow hole 11 and the second outflow hole 12, and specifically,
The inlet of the first outflow hole 11 is arranged so as to face the inflow port 10 so as to receive the water from the inflow port 10, and is located outside the annular part of the inlet or the annular part of the inflow port 10 in plan view. It is formed to have a size corresponding to that of FIG. The first outflow holes 11 of the dispersion plate 5
The central portion forming the is formed in the nozzle tube 15 protruding downward so as to extend the first outflow hole 11 downward. Further, the inflow port 10 has a circular shape, and the outflow holes 11 and 12 are provided.
Is a circular hole. The valve 14 includes a ball-shaped valve body 14A that closes the inlet with a valve seat at the periphery of the inlet, and the valve body 14A.
It comprises operating means for repositioning A into a closed position and an open position on the lateral side of the inlet. The operation means mounts an arm 14B on the body body 3 that holds the valve body 14A at the tip and changes the position of the valve body 14A between the closed position and the open position by swinging about the vertical axis a. Its arm 1
The shaft 14a of 4B is projected outside the body 3 and the shaft 1
An operation lever 14C is connected to the projecting end of 4a. Reference numeral 16a is an O-ring that seals the shaft 14a from the body body 3. The valve body holding portion 14b of the arm 14B is formed with a hole 14c that makes the upper surface of the valve body 14A face the inflow port 10 in the closed position, and the portion of the dispersion plate 5 that serves as the valve seat is a packing. It is composed of 17. Therefore, the switching means opens the first outflow hole 11 to remove the water from the inflow port 10 into the first water.
It is configured that the water from the inflow port 10 flows into the second outflow hole 12 by causing the water to flow into the outflow port 11 and closing the first outflow hole 11. The cartridge 2 has a receiving opening 18a for receiving water on the ceiling and a discharging opening 18b for discharging the received water at a bottom portion thereof. It has a basic structure in which a porous molded fiber activated carbon 19 is installed as a filter medium for filtering water flowing down to the outlet 18b. Specifically, in the state of being connected to the body 1, the raw water passage B and the second raw water passage B, which are inserted and connected to the nozzle pipe 15 of the dispersion plate 5 to make the water from the first outflow passage 11 flow down to the discharge port 18b, are connected. Discharge port 1 from the outlet 12
A partition pipe 20 for partitioning the inside of the housing 18 is provided in the purifying passage C flowing down to 8b, the molded fiber activated carbon 19 as the purifying means is provided in the purifying passage C, and the discharge port 1 is provided.
The lower part of 8b is opened. That is, the discharge port 18b
Is the purified water discharge port 21 and the raw water discharge port 22 of the water purifier. 16b is an O-ring that seals between the nozzle tube 15 and the partition tube 20. The housing 18 is provided at its upper end with a mounting ring 18A for attaching to the body 1 that projects outward and a retaining flange 18B that projects inward. Further, the structure is such that a two-piece can having a structure in which an upper lid that closes the upper opening is fastened to a main body whose upper part is opened and a resin coating is applied, and the discharge port 18b is provided at the bottom of the main body of the two-piece can. And the receiving port 18a is formed in the central portion of the upper lid, so that the winding tightening portion serves as the mounting ring 18A, and the outer peripheral portion of the upper lid and the retaining flange 18 are formed.
The state is set to B. The receiving port 18a is
A pull tab 24 is attached to a central portion 23 of the upper lid, and a low-strength portion 25 for pull tab cutting is formed at a boundary between the central portion 23 and an outer peripheral portion that serves as a retaining flange 18B. It is formed by pulling the part 23. The partition tube 20 is a synthetic resin product, and is arranged such that its lower end opening faces the discharge port 18b with a space therebetween, and a plurality of water permeation holes are formed in the partition tube 20. A receiving plate 26 for placing and supporting the activated carbon 19 is continuously provided. In addition, the receiving plate 26 is placed on the bottom surface of the housing 18 and
The water discharge port 18 that abuts the inner peripheral surface of the
A plurality of legs 26a for supporting the receiving plate 26 on the housing 18 in a positioned state so as to form a flow path to b are continuously provided at intervals in the circumferential direction. The partition tube 20, the receiving plate 26, and the legs 26a are formed as an integral body. Reference numeral 27 is a rectifying filter for preventing water splashing, which is fixed by pressing the discharge port 18b on the bottom surface of the housing 18 by the receiving plate 26, which is made of sintered resin beads such as methacrylic resin and styrene resin. It is a model. 28 is a paper filter which is laminated on the upper and lower surfaces of the molded fiber activated carbon 19, and 29 is a resin holding plate having water passage holes, which hit the retaining flange 18B of the housing 18 to form the molded fiber. The activated carbon 19 and the integrated body are prevented from coming out upward from the housing 18. The molded fiber activated carbon 19 is formed by adding a binder to fiber activated carbon to form a porous material, and the partition tube 20 is formed so as to be in close contact with the housing 18 and the partition tube 20.
The inner diameter of the hole through which the through hole is inserted is slightly smaller than the outer diameter of the partition tube 20, and the outer diameter is formed to be slightly larger than the inner diameter of the housing 18, and the hole is inserted into the housing 18 in a compressed state. The surfaces of the housing 18, the molded fiber activated carbon 19, the integrated body, the rectifying filter 27, and the holding plate 29 are antibacterial. That is, the cartridge 2
The surface of the part that comes into contact with the purified water of is purified. The antibacterial means of the housing 18 is a means for making the coating made of a resin containing an antibacterial agent, and the antibacterial means of the molded fiber activated carbon 19 is a means for mixing the antibacterial agent into the binder. The antibacterial means of the holding plate 29 is a means made of resin containing an antibacterial agent. The antibacterial agent is fine particles having a size of about 0.5 to 2 μm that kills a bacterium upon contact with the bacterium, such as an ion exchanger in which a metal ion is ion-exchanged with an ion-exchange group, or an insoluble inorganic compound is a metal ion. Is carried. The ion exchanger is synthetic zeolite, ion exchange resin or the like, and the metal ion is silver ion, copper ion, zinc ion, tin ion or the like. The surface of the molded fiber activated carbon 19 is antibacterial, that is, the amount of the antibacterial agent mixed for giving the surface antibacterial ability, and the surfaces of the housing 18, the integrated body, the rectifying filter 27, and the holding plate 29 are antibacterial. The amount of the antibacterial agent to be mixed is, in the case where the antibacterial agent is one in which silver ions are ion-exchanged into the ion-exchange group of the synthetic zeolite or one in which the insoluble inorganic compound carries silver ions, the amount of the fiber activated carbon is 0.1-10% weight,
It is 0.1 to 10% by weight of the resin weight. Briefly explaining the procedure for producing the cartridge 2, the molded fiber activated carbon 19, the filter 28, and the rectifying filter 27 in which the integrated body is incorporated are loaded into the main body for the housing 18 in which the discharge port 18b is formed, and the pressing plate is provided. 29, and then the upper lid is wound around the main body. Then, as shown by the chain double-dashed line in the figure, the cartridge 2 has the inside thereof hermetically sealed until the time of use by closing the discharge port 18b with the seal 30. The cartridge mounting means is provided with a packing 13 for sealing between the body body 3 and the dispersion plate 5,
The fixing ring 31 is provided so as to be pressed from below to the body body 3 and can be fitted and fixed to and detached from the body body 3, and in the fixed state, a fixing ring 31 for pressing and fixing the mounting ring 18A of the cartridge 2 to the lower surface of the packing 13 is provided. I am doing it. In other words, this cartridge mounting means is provided with the mounting ring 18A while the cartridge 2 is mounted on the body body 3.
The packing 13 is prevented from being detached downward by being pushed up by. The fixing structure of the fixing ring 31 to the body body 3 is such that two large outer diameter portions 32 and two small outer diameter portions 33 are alternately arranged in the circumferential direction in the fitting cylinder portion of the body body 3 with the fixing ring 31. Of the fixed ring 31 and the large outer diameter portion 32 when the fixed ring 31 is in the first set rotational posture with respect to the body body 3 on the inner peripheral surface of the fitting cylindrical portion of the fixed ring 31 with the body body 3. While preventing the fitting of the fixing ring 31 to the body 3 by coming into contact with each other, the protrusion 34 that allows fitting only when the fixing ring 31 is in the second set rotational posture different from the above with respect to the body 3 is provided. The large outer diameter portion 32,
When the fixing ring 31 is fitted to the body 3 and the ridge 34 is moved into the first set rotational posture to allow the rotation, the ridge 34 is moved in the axial direction. A groove 35 for restricting is formed, and in the groove 35, a projection 35a that elastically fits into a concave portion 34a formed in the protrusion 34 when the fixing ring 31 is rotated in the first set rotation posture and stops the fixing ring 31 from rotating. It is formed and configured. That is, the fixing ring 31 is fixed to the body 3 by rotating the fixing ring 31, and the fixing ring 31 is separated from the body 3 by the reverse operation.

[Other Embodiment] In the above embodiment, the valve body 1
Although the position of 4A is changed by swinging the arm 14B, a member that moves linearly may be provided instead of the arm 14B, and the position of the valve body 14A may be changed by linear movement of the member. Although a circular hole is shown as the second outflow hole 12 in the above embodiment, a slit may be used as the second outflow hole 12. In the above embodiment, as the valve body 14A,
Although it has been shown that the first outflow hole 11 is opened and closed by swinging about the vertical axis a, the valve body 14 that opens and closes the first outflow hole 11 is shown.
As A, (A) and (B) of FIG. 7 and (A) of FIG.
As shown in (B), it may be opened and closed by a fixed position rotation around the horizontal axis b. In the above embodiment, as the valve 14, the inlet of the first outflow hole 11 is opened and closed by the valve body 14A to close the first outflow hole 11, and the inlet is opposed to the inflow port 10. 1 outflow hole 1
Although it is shown that the valve 1 is switched to the open state, the valve 14
For example, the opening and closing of the first outflow hole 14 may be performed. In the above embodiment, the purifying means 19
Although the molded fiber activated carbon is shown as above, the purification means 19 may be a filtration membrane for microfiltration or ultrafiltration, a granular activated carbon layer, or a combination thereof.
In the above-mentioned embodiment, the means for opening and closing the first outflow hole 11 is shown as the switching means, but the switching means for opening and closing the first outflow hole 11 and the second outflow hole 12 in a contradictory manner. May be In the above embodiment, the housing 18
Although the can is shown as, the housing 18 may be made of resin-coated paper or resin. still,
Reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

[Fig. 1] Vertical sectional view

FIG. 2 is a cross-sectional plan view of the main part

FIG. 3 is a bottom view of the main part

FIG. 4 is an exploded perspective view of essential parts.

FIG. 5 is a perspective view of a cartridge.

FIG. 6 is a plan view of the main part

FIG. 7 is a perspective view of a valve body showing another embodiment.

FIG. 8 is a perspective view of a valve body showing another embodiment.

[Explanation of symbols]

A faucet 1 body 2 cartridges 22 Raw water outlet 11, 12 Outflow hole B Raw water passage C purification passage 19 Purification means 18a entrance 18b outlet 18 housing 20 partitions

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hidemi Sakurada             2-33-136 Seta, Setagaya-ku, Tokyo (72) Inventor Mitsunobu Masuda             1-32 Dojimahama, Kita-ku, Osaka City, Osaka Prefecture             Takuma Co., Ltd.

Claims (5)

[Claims] 1. A cartridge (2) having a purifying means (19) is detachably connected and coupled to a body (1) having a connecting and coupling means to a faucet (A), and the purifying means (19). A faucet direct connection type water purifier in which switching means for selectively guiding water from the faucet (A) is provided in a purifying passage (C) provided with and a raw water discharge passage (B). ) Is provided with a cartridge attaching means for detachably connecting and connecting the cartridge (2) so as to overlap the lower portion of the body (1), and the bottom of the body (1) is
First and second outflow holes (11), (12) are formed, a discharge port (18b) is formed at the bottom of the cartridge (2), and the first outflow hole ( 1
The raw water discharge passage (B) is formed in a state of receiving the water from 1) and flowing it down to the discharge port (18b), and receiving the water from the second outflow hole (12) to receive the water from the discharge port (18b). ), The purification passage (C) is formed, and the water from the tap (A) is used as the first switching means.
Water purifier with direct connection to the faucet provided with means for selectively leading to the outflow hole (11) and the second outflow hole (12). 2. A bottom portion provided with a connecting / connecting means to the faucet (A) and a cartridge attaching means for detachably connecting / connecting a cartridge (2) having a purifying means (19) in a state of being overlapped with a lower portion. A first outflow hole (11) and a second outflow hole (12) are formed in the
A body provided with a switching means for selectively guiding to the outflow hole (11) and the second outflow hole (12). 3. A housing (18) which is attached to the body according to claim 2 through a cartridge attaching means, and has a receiving opening (18a) formed in a ceiling portion and a discharge opening (18b) formed in a bottom portion. The first of the body
Raw water discharge passage (B) for flowing water from the outflow hole (11) of the second outlet to the discharge port (18b), and a purification passage (C) for flowing water from the second outflow hole (12) to the discharge port (18b). ) And a partition (20) for partitioning the inside of the housing (18), and a purifying means (19) in the purifying passage (C). 4. The cartridge according to claim 3, wherein the purifying means (19) is a porous molded fiber activated carbon which acts as a filter medium and has an antibacterial surface. 5. The cartridge according to claim 3, wherein the surface of the portion that comes into contact with the purified water is made antibacterial.