JPH0630761B2 - Water purifier - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a water purifying apparatus, which can guarantee the performance of a removable water purifying cartridge for a long period of time, and make the handling more hygienic. It relates to a water purification device that can

BACKGROUND OF THE INVENTION Conventionally, a water purifier for drinking water such as domestic tap water is intended to remove chlorine odor and turbidity by a water purification cartridge including freely attachable activated carbon and a filter. Depending on the place of use and environment, the effect is limited to a certain period of time, and after a certain period of time, the customer separately purchases the water purification cartridge and replaces it to ensure its function.

Thus, the conventional water purification cartridge has a passage communicating with the body and a water purification chamber containing a treatment material such as activated carbon and a filter, and both sides of the passage and the water purification chamber are open. An outer shell that forms a communication passage that connects the passage and the water purification chamber is detachably attached to the body.

Therefore, during the replacement period, the outer shell is removed and then the water-permeable portion of the water purification cartridge is touched and handled, which is unsanitary. Furthermore, after the production of the water purification cartridge,
Since it reaches the customer after it is stored in the car, in a warehouse, etc., or displayed at the store, the activated carbon, which is also the life of the water purifier, absorbs odor molecules in the air from both sides of the water purification room and its performance is There were problems such as not being able to guarantee enough.

In the conventional structure in which a communication passage that connects the passage and the water purification chamber is formed between the cartridge and the outer shell, the water supply pressure acts on the inner wall of the outer shell, so it is necessary to make the outer shell and the body watertight. Of course, there are problems in strength and durability. In that respect, some cartridges have a sealed structure so that the water absorption pressure does not act on the inner wall of the outer shell, but in these, a passage for connecting the body and the water purification cartridge is provided separately from the cartridge, so when replacing the cartridge It is necessary to connect the passage and the cartridge, and there is a problem in terms of easiness, certainty, and hygiene.

[Problems to be Solved by the Invention] The present invention has been made to solve the above-mentioned problems, and prevents the water passage portion of the water purification cartridge from being exposed to the outside and the water supply pressure to the water purification cartridge. The cartridge itself has a sealed structure so that it does not act on the inner wall of the outer shell, and the replacement work of the cartridge is easy,
It provides something that can be done reliably and hygienically.

[Means for Solving the Problem] The present invention has a body having a purified water inlet hole and a purified water outlet, which can be attached to a faucet or the like, and a processing material such as activated carbon which is detachably attached to the body and is incorporated. In the water purifying apparatus having the water purifying cartridge arranged as described above, the water purifying cartridge has a second connection port connected to the water purifying outlet on the side of the cartridge to be mounted on the body and the body of the water purifying cartridge. It has a first connection port that is connected to the purified water inlet hole on the side to be mounted, and has a sealed structure except for these two connection ports, and the water that has flowed into the water purification cartridge from the first connection port is The essence is that it is configured to flow out from the second connection port via the processing material.

[Operation] According to the present invention, since the parts other than the side of the cartridge mounted on the body are hermetically sealed, the exchange with the outside air is reduced, the deterioration of the treated material such as activated carbon in the cartridge is reduced, and the long-term performance is maintained. It is possible. When using the water purifier, it is completely sealed except the water inlet port and the connection port with the water outlet, so the pressure of the pressure water supplied is confined in the cartridge and the pressure water does not act on the outer shell. The shell does not need a water resistant structure. Furthermore, according to the present invention, the cartridge can be mounted easily by pushing it into the body, so that the cartridge is easy and reliable to handle. At that time, even if the sealed portion of the cartridge is touched by hand, contamination does not enter the water passage portion of the cartridge, which is hygienic and safe.

[Examples of the Invention] Examples of the water purification apparatus of the present invention will be described with reference to the drawings.

Here, FIG. 1 is a partially open sectional perspective view of a water faucet direct connection type water purifying apparatus according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view thereof, and FIG. It is a figure.

In the figure, 1 is a faucet, 2 is a connecting part, 3 is a body, 4 is a raw water inlet hole, 5 is a purified water inlet hole, 6 is a raw water outlet hole, 7 is a spool insertion hole, and 8 is a first such as activated carbon. 1 treatment material, 9 second treatment material such as filter, 10 water purification cartridge,
10a is a water purification room.

Further, 11 is a raw water outlet, 12 is a raw water communicating portion that communicates the raw water inlet hole 4 and the raw water outlet hole 6, 13 is a spool sleeve, 14, 15, 16 are O-rings, 17 is a spool, 1
8 is a dial.

Further, 19 is a purified water outlet, 20 is a water passage provided at the end of the spool 17, 21 is an O-ring, 22 is a case body, 23 is a water passage hole of the cover 24, 25 is a net, 26
Is a passage, 27 is a water passage, 28 is an elastic body for water sealing, 29
Is a cap, 30 is a notch, 31 is a check valve, 32 is a ring body, 33 is an outer shell, and 33a is an outflow hole.

Then, at least the spool 17 and the dial 18 described above are used for the raw water inlet hole 4, the raw water outflow hole 6, and the raw water communicating portion 1
The switching valve device V is formed so as to switch between the raw water path according to No. 2 and the water purification path according to the raw water inlet hole 4 and the purified water inlet hole 5.

Further, the water purification cartridge 10 is constituted by a case body 22 provided with a passage 26 communicating with the body 3 and a water purification chamber 10a accommodating the first treatment material 8 and the second treatment material 9, and the passage 26. The water purifying chamber 10a is formed by pressurizing the cover 24 to which the net 25 for preventing the backflow of the first treatment material 8 is fixed, into the water purifying chamber 10a. Cap 29 through body 28
It has a sealed structure by mounting.

That is, the body 3 having the connecting portion 2 that can be directly connected to the faucet 1 has a substantially cross-shaped water passage, which is a raw water inlet hole 4, a purified water inlet hole 5, respectively.
It is formed by the raw water outflow hole 6 and the spool insertion hole 7. Then, on the downstream side of the purified water inlet hole 5, a detachable water purification cartridge 1 which will be described later in detail.
0 is provided.

The spool insertion hole 7 has a spool sleeve 13 having a raw water circulating portion 12 that connects the raw water inlet hole 4 and the raw water outlet hole 6 and is inserted through an O-ring 14. .

Further, an O-ring 15 for water-sealing the vicinity of the end surface portion of the spool sleeve 13 and the end surface portion of the purified water inlet hole 5, and the spool 1
The spool 20 to which the O-ring 16 for sealing the water to the dial 18 side for operating 7 is fixed is the spool insertion hole 7
Is to be inserted into.

Then, the spool 20 is moved by the operation of the switching valve device V described above, that is, the selective operation by the customer, and the raw water path and the purified water path are changed so that the raw water and the purified water are respectively obtained. It was done.

That is, if the dial 18 is adjusted to the raw water display, the O-ring 15 of the spool 17 will seal the vicinity of the end face portion of the purified water inlet hole 5 (state of FIG. 2), and the water flowing in from the raw water inlet hole 4 will , Through the small diameter portion of the spool 17, through the raw water flow passage 12, through the raw water outflow hole 6, and the raw water outlet 1
It flows out from 1.

Similarly, when the O-ring 15 seals the vicinity of the end surface portion of the spool sleeve 13 with water, the water flowing in from the raw water inlet hole 4 has a small diameter or a substantially star-shaped cross section. Pass through the waterway 20 and then the purified water inlet hole 5
The water purification cartridge 10 detachably attached to the body 3 is attached to the water purification cartridge 10 detachably attached to the body 3.

The case body 22 of the water purification cartridge 10 is detachably attached to the body 3 via the O-ring 21, and the second treatment material 9 and the second treatment material 9 are placed in the water purification chamber 10a. 1 Processing material 8 is stored.

Further, in order to prevent the outflow of the first treatment material 8 and to allow the water to flow out at a constant speed over the entire area of the water purification chamber 10a, that is, in order for all of the first treatment material 8 to work effectively, a large number of passages are provided. Water hole 23
The net 25 is fixed to the cover 24 having the above, and is attached to the upper surface of the case body 22, that is, the upper surface of the water purification chamber 10a by press fitting.

Then, as described above, the passage 26 provided in the case body 22 and the purified water inlet hole 5 are formed to communicate with each other by forming the water passage 27, and the upper end portion of the case body 22 has an elastic body for water sealing. A cap 29 is attached via 28 to form a closed structure.

On the bottom surface of the case body 22, there is a first connection port 26b which is fitted and connected to the fitting portion of the purified water inlet hole 5 of the body.
At the center of the bottom of No. 2, there is a second connection port 21b that connects to the fitting part of the purified water outlet 19 of the body 3. Since the first connection port 26b and the second connection port 21b on the cartridge side are made so as to match with the fitting portions of the purified water inlet hole 5 and the purified water outlet 19 of the body 3, for mounting the cartridge. By pushing it to the body side, the connection can be performed easily and surely. The diverging groove provided on the case body 10 and the vertical projection 3b provided on the body 3 in FIG. 3 are for guiding when the cartridge is pushed down and mounted on the body, whereby the connection ports 26b described above are provided. , 21
The positioning of b is automatically performed, and the mounting of the cartridge on the body is more easily and reliably performed.

Further, between the case body 22 and the cuff 29, a notch portion 30 is provided which is a notch hole for intentionally ejecting the elastic body 28 at the time of abnormal pressure.

Therefore, the raw water that has reached the purified water inlet hole 5 will not pass through the passage 26.
Through a large number of water holes 23 to reduce the flow velocity and
After passing through the treatment material 8 and the second treatment material 9, the chlorine odor in tap water and the turbidity generated from the pipe and the like are adsorbed and clarified to become colorless and odorless tasty water, which flows out from the purified water outlet 19. It is a thing. Further, a check valve 31 having a valve seat on the side wall of the passage 26 of the case body 22 is provided in the middle of the passage 26.

With the above configuration, when the water purifying cartridge 10 is replaced by the customer, the water passing portion is never touched by a hand or any other non-sanitary item, so that the customer is hygienic and safer. It is possible to provide a water purification device.

In addition, since one side of the water purification chamber 10a of the water purification cartridge 10 has a closed structure, activated carbon is less likely to be adsorbed and deteriorated by activated carbon during transportation and storage after production until it reaches the customer. It is possible to guarantee performance for a period.

Furthermore, when the tap water is abnormally pressurized by a water hammer or the like and a high pressure is applied to the water purifier as it is, or when the filter 9 is clogged by rust generated from a piping system such as an iron pipe, the water purification cartridge 10 is frozen. When the pressure inside the water purifying chamber 10a is abnormally increased, the elastic body 28 is discharged from the notch portion 30 related to the notch hole to release the water seal, and water is discharged from the gap between the case body 22 and the outer shell 33. It is possible to provide a water purification device that has a function as a safety mechanism that protects the main body such that the water that has leaked out flows out to the outside through the outflow hole 33a and informs the customer of an abnormality. It is a thing.

Next, FIG. 4 is a cross-sectional view of essential parts of a water purifier according to another embodiment of the present invention.

Therefore, FIG. 4 shows that the passage 26 described in FIG. 2 is provided in the direction perpendicular to the plane of the drawing.
Other configurations including the configuration are the same as those in FIG.
The same reference numerals as those in the figure indicate the same parts.

10A is a water purification cartridge, 22A is a case body, 29A is a cap, 34 is a stopper, and 35 is a groove.

That is, the stopper 29A having elasticity is attached to the cap 29A.
4 is provided and a groove 35 for receiving the stopper 34 is formed in the case body 22A. With this structure, the case body 22A and the cap 29A are mounted and locked to each other. Not only the same effect as the embodiment can be expected, but further, when the function of the water purifying device is restored, the above locking is released without replacing the entire water purifying cartridge 10A, and only the first treatment material 8 is obtained. Can be replaced, and the burden on the customer can be greatly reduced. In addition, depending on the customer's request, for example, a substance for mineral elution
It is possible to introduce it on the spot, and it is possible to expect the effect that the field of use will be greatly expanded.

[Effects of the Invention] According to the present invention, the water purification cartridge has a connection port that is connected to the body water purification outlet and the body water purification inlet hole by mounting the cartridge on the body, and is otherwise sealed. Since the first treatment material such as activated carbon and the second treatment material such as a filter are less likely to be contaminated and deteriorated during transportation and storage of the cartridge, the water passage portion of the cartridge is not exposed to the outside. Even when the cartridge is replaced, there is no risk of contaminating the water passage of the cartridge, and the connection of the water passage can be completed simply by mounting the cartridge on the body, which facilitates the replacement of the cartridge. Further, since the water supply pressure to the water purifying device does not act on the inner wall of the outer shell, the durability can be improved without impairing the water tightness of the water purifying device.

[Brief description of drawings]

FIG. 1 is a partially opened sectional perspective view of a water purification apparatus according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view thereof, FIG. 3 is an exploded perspective view of its essential parts, and FIG. It is a principal part sectional drawing of the water purifier which concerns on the other Example of this invention. 1 ... Faucet, 2 ... Connection part, 3 ... Body, 4 ... Raw water inlet hole, 5 ... Purified water inlet hole, 6 ... Raw water outlet hole, 7 ...
Spool insertion hole, 8 ... First treatment material, 9 ... Second treatment material, 10, 10A ... Water purification cartridge, 10a.
Water purification room, 11 ... Raw water outlet, 12 ... Raw water communication part, 1
9 ... Purified water outlet, 20 ... Water passage, 22, 22A ... Case body, 23 ... Water passage hole, 24 ... Cover, 25 ...
Net, 26 ... Passage, 27 ... Water passage, 21b ... Second connection port, 26b ... First connection port, 29, 29A ... Cap, 33 ... Outer shell.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shizuo Tsuruta 1-1-1, Taga-cho, Hitachi-shi, Ibaraki Hitachi Ltd. Taga factory (56) Reference US patent 4172796 (US, A) US patent 4271015 ( (US, A)

Claims (1)

[Claims] 1. A purified water having a purified water inlet hole and a purified water outlet, and a body which can be attached to a faucet and the like, and a water purification cartridge which is detachably attached to the body and has a treatment material such as activated carbon incorporated therein. In the apparatus, the water purification cartridge has a second connection port connected to the water purification outlet on a side of the cartridge mounted on the body and a water purification inlet port on a side of the water purification cartridge mounted on the body. Has a first connection port that has a closed structure other than these two connection ports, and the water that has flowed into the water purification cartridge from the first connection port passes through the treatment material from the second connection port. A water purifier characterized by having an outflow.