JPH11156350A - Mechanism for attaching and detaching cartridge for water purification device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mechanism for attaching and detaching a cartridge for a water purification device wherein a hollow-fiber membrane filter made in a cartridge for a two-way water purification device can be continuously used even in a state in which it is removed from a water purification channel. SOLUTION: In a water purification device C of a structure wherein a water supply raw material switching cock part B is provided, water is introduced into a water purification body C therefrom, and returned to the switching cock part B side after purifying water, a hose connection joint E is provided to the switching cock side B, a couple of connection openings are provided so that purification water flows through a hollow-thread film filter cartridge D, and a pair of the connection openings form a communication route in the joint. When the hollow-fiber membrane cartridge D is connected to the connection opening, the communication route is blocked, and when the hollow-fiber membrane cartridge D is detached from the connection opening, the communication route is opened to block the connection opening. Such an opening and closing mechanism is built-in.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for removing and attaching a water purification cartridge in a water purifier for tap water.

[0002]

2. Description of the Related Art In recent years, there has been an increasing demand for safe drinking water, and various water purifiers have been proposed. In the case of a relatively simple water purifier, the water purifier can be directly attached to the tap of the tap water, or the tap can be used to guide the water to the main body of the water purifier with a hose. (One-way type) or a one-way type which is once returned to a faucet and used as drinking water is adopted. The two-way type, in which the tap water tap and the water purifier main body are connected by an outflow hose and an inlet hose, eliminates the restriction of placing the water purifier main body beside a sink. Convenient because purified water is obtained from a tap.

[0003] The former water purifier directly attached to the tap water is relatively inexpensive, but the latter is said to be superior in terms of water purification function. This is a system employing a combination of a water purification mechanism mainly using activated carbon or the like and a water purification mechanism using a hollow fiber membrane filter, and has been effectively used even in an area or a season where water quality is relatively poor.

However, in the water purifiers conventionally proposed, clogging of the filter is a serious problem, and a hollow fiber membrane filter having a mesh of about 0.1 μm is particularly difficult. Many filters are easily clogged but cannot be replaced. However, the hollow fiber membrane filter may be replaceable as a cartridge type filter. However, in general, a separate device is added to the water purifier main body. And the appearance is not good.

[0005] When water is passed through the hollow fiber membrane filter, the flow resistance is inevitably increased, and the flow becomes relatively small. Therefore, when a large amount of water is heated and used, it may be desired to use the water without passing through the hollow fiber membrane filter.However, if the cartridge type hollow fiber membrane filter is removed, Since the water flows out from the connection port, it was impossible to use the cartridge with the cartridge removed.

[0006]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art. In particular, the present invention relates to a two-way type water purifier, in which a cartridge-formed hollow fiber membrane filter is used. The present invention proposes a mechanism for attaching and detaching a cartridge for a water purifier, wherein the cartridge can be used continuously even in a state in which it is removed from the flow path of the purified water.

[0007]

SUMMARY OF THE INVENTION The gist of the present invention is that a tap water tap is provided with a switching cock, and water is guided from the switching cock to a water purifier main body with a hose (F). In a two-way type water purifier used as drinking water by returning to the switching cock portion with the hose (G), the hose (G) is provided on the switching cock portion side to which the hose (G) is connected. The joint has a pair of connection ports for purified water to pass through the hollow fiber membrane cartridge, and the pair of connection ports form a communication passage inside the joint, and the hollow fiber When the membrane cartridge is connected to the connection port, this communication path is closed, and when the hollow fiber membrane cartridge is removed from the connection section, the communication path is opened and the connection port is closed. Pertaining to the cartridge removal mechanism for water purifiers with a built-in mechanism That.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention has the above structure. When the hollow fiber membrane cartridge is removed, the flow of purified water from the water purifier body is communicated inside the switching cock portion, while the connection is established. Since the mouth is closed, the water purifier can be used continuously even when the hollow fiber membrane cartridge is removed.

If the present invention is further described from the water purifier side, the raw water from the tap is supplied to the hose (F) from the switching cock.
After entering the water purifier main body, harmful substances such as chlorine, trihalomethane, and 2MIB are first removed by the activated carbon layer, and then returned to the switching cock part with the hose (G), where bacteria are further removed. Fine harmful substances that could not be removed by the activated carbon layer are removed by a hollow fiber membrane filter and used in drinking water.

However, when the hollow fiber membrane filter becomes clogged and, for example, the flow rate of purified water becomes smaller, the cartridge-formed hollow fiber membrane filter can be easily pulled out from the connection port and replaced. At this time, even when the hollow fiber membrane cartridge is removed, the purified water does not leak out from the connection port, and the purified water can be used continuously.

Therefore, as a specific embodiment of the present invention, a piston is fitted into the connection port, and a first flow path connected to the piston and a second flow path connected to the hollow fiber membrane cartridge. When the hollow fiber membrane cartridge is connected, it is connected to the second flow path and the piston is pushed to close the communication passage, and when the hollow fiber membrane cartridge is removed, The piston is returned, the connection port is closed, and an opening / closing mechanism for connecting the communication path and the first flow path is provided.

[0012]

The present invention will be described in more detail with reference to the following examples. FIG. 1 is a conceptual diagram of the entire water purifier of the present invention. A
Is a tap water tap, B is a switching cock, C is a water purifier main body, D is a hollow fiber membrane cartridge, and E is a coupling connected to the switching cock B, and includes a hollow fiber membrane cartridge D. Is connected. A hose (F) connects between the switching cock B and the water purifier main body C, and a hose (G) connects the water purifier main body C and the joint E.

Here, the flow of water in the water purifier will be mainly described. Raw water taken in from a tap water raw water faucet A is sent to a water purifier body C by a switching cock B by a hose (F), and activated carbon or the like is discharged therefrom. Hazardous substances such as chlorine, trihalomethane, and 2MIB are removed by the purifying agent. Thereafter, the hose (G) returns to the joint E of the switching cock B, and the joint E guides the hollow fiber membrane cartridge D. Fine harmful substances, which could not be removed by the activated carbon layer such as bacteria, were removed by a hollow fiber membrane filter, guided to a switching cock B, and used as drinking water from a faucet.

On the other hand, the hollow fiber membrane cartridge D is apt to be clogged due to the fineness of the filter.
The hollow fiber membrane cartridge D of the present invention can be easily removed from the joint E. And this hollow fiber membrane car
When the cartridge D is removed, the connection port of the joint E is instantly closed and there is no water leakage. In the case of the joint E, the connection port is closed and the purified water from the water purifier body is directly switched. This is a structure in which a communication passage flowing to the portion B is formed.

FIG. 2 is a partially cutaway sectional view showing an example of the joint E and the hollow fiber membrane cartridge D of the present invention. FIG. 3 is a view showing the state where the hollow fiber membrane cartridge D is removed from the joint E. It is a partially cutaway sectional view. The joint E provided with outlet e ₂ that purified water is supplied to the cock B switched inlet e ₁ which purified water enters the purifier body, which is connected by internal joint E, the piston valve e _3, e ₄ during which The connection ports e ₅ and e ₆ for the embedded hollow fiber membrane cartridge D are provided as a pair. The piston valve e _3, e ₄ is supported by the elastic spring e _7, and O- ring e ₈ is fitted. The piston valves e ₃ and e ₄ move inward by being pushed inward from the connection ports e ₅ and e ₆ , and return to their original positions by releasing the pushing. The piston valves e ₃ and e ₄ have a straight hole e therein.
L-shaped holes e ₁₁ and e _{12 each} having one end directed toward the connection ports e ₅ and e ₆ are formed on the outer side of the holes ₉ and e ₁₀ .

On the other hand, the hollow fiber membrane cartridge D has a joint E
Connection port e _5, connecting end d ₁ which fits in e _6, d ₂ is provided, the hollow fiber membrane filter -d ₀ is disposed therein. Therefore, water that has entered the inside of the hollow fiber membrane cartridge D through the connection port e ₅ and the connection end d ₁ is to remove fine harmful substances by passing through the hollow fiber membrane filter d _0. . Then, the purified water passes through the connection end d ₂ and the connection port e ₆ , is supplied to the switching cock B, and is used as drinking water from the faucet.

Next, an example of the opening and closing mechanism will be described. As shown in FIG. 2, when the hollow fiber membrane cartridge D is connected to the joint E, the piston valves e ₃ and e ₄ are pushed inward. inlet e ₁ and outlet e ₂ is connected and the hole e _11, e ₁₂ of L-shaped, the water has a structure that is purified by the hollow fiber membrane filter -d ₀ and supplied to the switching cock portion B.

On the other hand, when the piston valves e ₃ and e ₄ move outward and return to their original positions, that is, when the hollow fiber membrane cartridge D is pulled out from the connection ports e ₅ and e ₆ , The piston valves e ₃ and e ₄ instantaneously return to their original positions by the elastic spring e ₇ , the inlet e ₁ and the outlet e _{2 of} the purified water are communicated by the straight holes e ₉ and e _10, and the water is switched as it is. It is supplied to the cock section B.

In the drawing, reference numerals e ₁₃ and e ₁₄ denote hooks provided with claws e _{15 and} e ₁₆ inward on the joint E side, while the hook e ₁₃ is provided on the hollow fiber membrane cartridge D. a hook d _3, d ₄ which is fitted to the e ₁₄ to this are those with a nail d _5, d ₆ each outward. The connection ends d ₁ and d ₂ of the hollow fiber membrane cartridge D are connected to the connection port e of the joint E.
_5, when plugged into e ₆ and nail d _5, d ₆ nails of both hook _{e 13, e 14 e 15,} e 16 and the hook d _3, d ₄ is mounted in engagement, on the other hand, When the hooks d ₃ and d ₄ are pressed from the outside, the engagement between the claws is released, and the hollow fiber membrane cartridge D can be removed.

[0020]

According to the present invention, when the hollow fiber membrane cartridge is clogged, it can be easily replaced and the hollow fiber membrane cartridge is attached to the switching cock so that the structure of the water purifier can be made compact. is there. Even when the hollow fiber membrane cartridge is removed during replacement, purified water does not leak from the connection port, and further purified water can be used.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of the entire water purifier of the present invention.

FIG. 2 is a partially cut-away cross-sectional view when a joint is connected to a hollow fiber membrane cartridge.

FIG. 3 is a partially cutaway cross-sectional view when a hollow fiber membrane cartridge is removed from a joint.

[Explanation of symbols]

A ‥‥ raw water faucet, B ‥‥ switching cock unit, C ‥‥ purifier body, D ‥‥ hollow fiber forming a film - cartridge, E ‥‥ joint, F, G ‥‥ Ho - scan, e ₁ ‥‥ joint E ₂ , the inlet to which the purified water is supplied, e ₃ , e _{4 、} piston valve, e ₅ , e ₆ ‥‥ connection port, e ₇ ‥‥ elastic spring, e ₈ O-ring, e ₉ , e ₁₀ス ト Straight hole provided in piston valve, e ₁₁ , e ₁₂ ＬL-shaped hole provided in piston valve, e ₁₃ , e ₁₄ ‥‥ Hook of coupling, e ₁₅ , e ₁₆ ‥‥ claw, d ₀糸 hollow fiber membrane filter, d ₁ , d ₂接 続 connection end of hollow fiber membrane cartridge, d ₃ , d ₄フ ッ ク hook of hollow fiber membrane cartridge , d _5, d ₆ ‥‥ nails.

Claims (2)

[Claims] 1. A tap cock is provided in a tap water tap, and water is guided to the water purifier main body with a hose (F) from the cock tap, and after purifying the water, a hose (G) is provided.
Return to the switching cock section to use as drinking water
A water-type water purifier is provided with a joint for connecting a hose (G) on a switching cock side to which a hose (G) is connected, and the joint has a hollow fiber membrane cartridge. It has a pair of connection ports for passing through, and the pair of connection ports forms a communication path inside the joint, and when the hollow fiber membrane cartridge is connected to the connection port, this communication path is closed. A cartridge opening / closing mechanism for a water purifier, which has a built-in opening / closing mechanism for opening a communication passage and closing the connection opening when the hollow fiber membrane cartridge is removed from the connection opening. 2. A piston is fitted into the connection port, and a first flow path connected to the communication path and a second flow path connected to the hollow fiber membrane cartridge are formed in the piston, and the hollow fiber membrane cartridge is formed. When connected, it is connected to the second flow path and the piston is pushed to close the communication path, and when the hollow fiber membrane cartridge is removed, the piston returns and the connection port is closed. 2. The water purifying cartridge attaching / detaching mechanism according to claim 1, further comprising an opening / closing mechanism that connects the communication path and the first flow path.