JPH10137740A - Portable water purifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable water purifier excellent in portability, capable of obtaining sufficiently filtered water quantity and easy in dissembling. SOLUTION: A housing 1 is constituted of a bellows-shaped body art 1a, a pair of end plates 1b, 1c fitted to both the ends, and a cover 6. A cartridge filter 2 is attached to the inside of the housing while being penetrated through the end plate 1c, and the cover 6 constituting a transmitted water outlet 6a is attached to the outlet side of the cartridge filter 2. The outer peripheral end edge of the cover 6 is held with the outer peripheral end edge of the plate 1c by a cramp 8. An intake inlet 4 and a drain port 5 are formed on another end plate 1b, and a handle 10 for expanding and contracting the bellows-body part 1a is attached to the end plate 1b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a portable water purifier used for filtering water.

[0002]

2. Description of the Related Art Conventionally, a syringe-type or hand-pump-type water purifier is known as a portable water purifier. The syringe-type water purifier uses a syringe-type housing consisting of a piston and a cylindrical cylinder, and takes in raw water and sends out permeated water by moving the piston.Activated carbon or a hollow fiber membrane bundle and activated carbon are used as a filter medium. And the like are used.

[0003] In addition, a hand-pump type water purifier uses a box-shaped housing, and a lever is operated by hand.
The intake of raw water and the delivery of permeated water are performed using a pump action. As the filter medium, activated carbon or a combination of a hollow fiber membrane bundle and activated carbon as described above is used.

[0004]

The syringe-type portable water purifier described above is small and excellent in portability. However, it has the disadvantage that the amount of filtered water is small and the life is short.

On the other hand, a hand-pump type portable water purifier is
Compared to a syringe-type portable water purifier, a large amount of filtered water can be obtained, and the service life is relatively long. However, the portable water purifier of the hand-pump type has a problem that the housing is large and the portability is poor. Also, it is difficult to disassemble. For this reason, when stored for a long time after use, the liquid tends to remain inside the housing, and there is a problem in terms of hygiene.

An object of the present invention is to provide a portable water purifier which is excellent in portability, can obtain a sufficient amount of filtered water, and can be easily decomposed.

[0007]

The portable water purifier according to the present invention has a cartridge filter housed in a housing having an elastic bellows-shaped body.

[0008] In the portable water purifier according to the present invention, since the portable water purifier can be carried in a small size with the body part being compressed, the portability is improved. Moreover, since the raw water is taken into the housing by repeatedly expanding and contracting the body, and the permeated water of the cartridge filter is sent out, the operation of taking in the raw water and sending out the permeated water can be easily performed. Furthermore, since a sufficient amount of raw water is taken into the housing when the body is extended, a sufficient amount of filtered water can be obtained.

A first closing member having a raw water inlet is provided at one end of the bellows-shaped body, and a cartridge filter is detachably held at the other end of the bellows-shaped body. A second closing member having a holding member and a permeate outlet may be provided. As a result, the raw water is taken into the housing from the raw water inlet of the first closing member by expanding and contracting the body, and the permeated water passes through the cartridge filter held by the holding member and is transmitted through the second closing member. It is sent out from the exit. Since the cartridge filter is detachably held by the holding member, the cartridge filter can be easily replaced.

In particular, it is preferable to provide a seal member for sealing the space on the raw water side and the space on the permeated water side in the housing in a liquid-tight manner in the holding member. Thereby, the sealing property between the cartridge filter and the holding member is secured, and leakage of the permeated water can be prevented.

Further, it is preferable that a drain port is provided in the first closing member, an opening / closing valve is attached to each of the raw water inlet and the drain port, and a check valve is attached to the permeated water outlet. In this case, when the on-off valve at the raw water inlet is opened with the on-off valve at the drain port closed and the body is stretched, the raw water is sucked into the housing from the raw water inlet. At this time, the backflow prevention valve prevents the permeated water from flowing back into the housing. Further, when the opening / closing valve at the raw water inlet is closed and the body is compressed, the raw water in the housing is transmitted through the cartridge filter and pushed out of the housing as permeated water. In addition, when the on-off valve at the drain port is opened and the body is compressed while the on-off valve at the raw water inlet is closed, the raw water in the housing is discharged to the outside. Further, the liquid in the cartridge filter can be discharged to the outside from the filtered water outlet by pressing and contracting the body with the open / close valves of the raw water inlet and the drain port closed.

Further, it is preferable that the second closing member is detachably provided on the other end side of the bellows-shaped body. This facilitates disassembly of the housing and replacement of the cartridge filter.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a portable water purifier according to an embodiment of the present invention, and FIG. 2 is a sectional view of a cartridge filter in FIG.

In FIG. 1, the portable water purifier includes a housing 1. The housing 1 includes a hollow body 1a formed in a bellows shape, and end plates 1b, 1c fixed to both ends thereof.
It is composed of An intake port (intake port) 4 and a drain port (drain port) 5 are formed in one end plate 1b. An intake valve 14 is attached to the intake port 4, and an intake hose 11 and a prefilter 12 are connected to the intake valve 14. The pre-filter 12 is composed of a mesh filter of 20 to 100 mesh, and is used while being immersed in the water intake source 13. Also,
A drain valve 16 is attached to the drain port 5, and a drain hose 15 is connected to the drain valve 16.

Further, a handle 10 is fixedly screwed to the end plate 1b. When the user moves the handle 10 up and down, the bellows-like body portion 1a expands and contracts. In the center of the other end plate 1c of the housing 1, a through hole for receiving the cartridge filter 2 is formed. An O-ring 9 for maintaining liquid tightness between the inside of the body 1a and the filtered water outlet 6a is inserted into the inner peripheral surface of the through hole.

A cover 6 is attached to the outer surface of the end plate 1c with an O-ring 7 interposed therebetween. The outer peripheral edge of the end plate 1c and the outer peripheral edge of the cup 6 are clamped by the clamp 8, whereby the end plate 1c and the cover 6 are held. The permeated water outlet 6a of the cover 6 communicates with the permeated water outlet side of the cartridge filter 2, and a check valve 17 is connected to the end of the permeated water outlet 6a.

As shown in FIG. 2, the cartridge filter is formed by bending a hollow fiber membrane bundle 25 formed by bundling a plurality of hollow fiber membranes into a U-shape. It is housed, and is formed by casting and fixing a thermosetting resin such as urethane resin or epoxy resin to one end of the cylindrical case 21. Further, a portion having a thickness L2 protruding from one end of the cylindrical case 21 is cut, and a casting resin partition wall 2 having a thickness L1 is cut.
6, the hollow fiber membrane bundle 25 is fixed to one end of the cylindrical case 21. The thickness L1 of the casting resin partition 26 is set to a thickness necessary to withstand the internal pressure of the cylindrical case 21 and maintain the sealing property at the interface between the casting resin partition 26 and the hollow fiber membrane 25. One and other end faces of the hollow fiber membrane bundle 25 exposed on the surface of the casting resin partition 26 are open. Further, an antibacterial agent 25 is sprinkled on the hollow fiber membrane bundle 25 inside the cylindrical case 21, and a coral layer 23 for adding minerals and a fibrous or granular activated carbon layer 22 are further provided thereon. It is laminated.

Here, the end plate 1b constitutes a first closing member of the present invention, the cover 6 constitutes a second closing member of the present invention, and the end plate 1c constitutes a holding member of the present invention. 1, the portable water purifier according to the present embodiment has a body 1a of a housing formed in a bellows structure. Therefore, by pressing the bellows-shaped body 1a when carrying it,
The water purifier is miniaturized and easy to carry.

The portable water purifier has a structure that is easy to disassemble and assemble. That is, the portable water purifier according to the present embodiment is assembled in the following procedure. First, the O-ring 9 is mounted on the inner surface of the opening of the end plate 1c of the housing 1. Next, the cartridge filter 2 is inserted into the opening of the end plate 1c to a predetermined position.

Further, the O-ring 7 is mounted, the cover 6 to which the check valve 17 is attached in advance is fitted to the outlet side of the cartridge filter 2, and the end plate 1 c and the outer peripheral edge of the cover 6 are fixed by the clamp 8.

Further, a water intake valve 14, a water intake hose 11, and a prefilter 12 are attached to the water intake 4 of the end plate 1b. In addition, a drain valve 16 and a drain hose 15 are attached to the drain port 5. Thereafter, the handle 10 is screwed and fixed to the end plate 1b.

With the above operation, the portable water purifier is assembled. At the time of disassembly, the disassembly can be performed by the reverse procedure. Further, a method of using the portable water purifier assembled according to the above procedure will be described.

First, the pre-filter 12 is immersed in the water source 13. Next, the water intake valve 14 is opened. At this time, the drain valve 16 is closed. Then, after the handle 10 is depressed, the handle 10 is raised again to the original position. Thereby, the raw water is filled in the raw water passage 3 of the housing 1. When the raw water is filled, the intake valve 14 is closed and the handle 10 is pushed down again. As a result, the raw water permeates through the hollow fiber membranes of the hollow fiber membrane bundle 25 of the cartridge filter 2, and filtered water (purified water) is sent out from the permeated water outlet 6a.

In order to continuously obtain the permeated water, the intake valve 14 is opened again, the handle 10 is moved up and down to take in the raw water into the raw water flow path 3, the intake valve 14 is closed again, and the handle 10 is pushed down. By repeating this operation, permeated water is continuously taken out from the permeated water outlet 6a.

When the removal of the permeated water is completed, the pre-filter 12 is removed from the water source 13, the drain valve 16 is opened, the water intake valve 14 is closed, and the handle 10 is pushed down to remove the raw water in the housing 1 into the drain port 5. Discharged from Further, the handle 10 is pulled up and the handle 10 is pushed down again with the drain valve 16 closed to push out the water in the cartridge filter 2 to the permeated water outlet 6a side. Thereby, moisture is discharged from the inside of the housing 1 and the inside of the cartridge filter 2 to the outside.

When the portable water purifier is not used continuously, the portable water purifier is disassembled, dried and stored. Thus, the portable water purifier of the present embodiment is excellent in portability and sanitary, and can supply safe drinking water.

FIG. 3 is a configuration diagram showing an application example of the portable water purifier of the present embodiment. In this application example, the portable water purifier is provided on the cart 30 so as to be movable. Further, a hand push lever 31 and a connection lever 32 attached to the carriage 30 are connected to the end plate 1b of the housing.

With such a configuration, it is easy to move the cart 30 to move the water purifier to a desired place. Further, as in the embodiment shown in FIG. 1, the body 1a of the housing 1 is formed in a bellows shape, so that
a can be contracted, and handling during transport becomes easy.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a portable water purifier according to an embodiment of the present invention.

FIG. 2 is a sectional view of the cartridge filter in FIG.

FIG. 3 is a configuration diagram showing an application example of the portable water purifier of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 1a Body 1b, 1c End plate 2 Cartridge filter 3 Raw water passage 4 Intake inlet 5 Drain port 6 Cover 6a Permeate outlet 10 Handle 11 Intake hose 12 Prefilter 13 Intake source 14 Intake valve 16 Drain valve 21 Cylindrical case 22 Activated carbon layer 23 Coral layer 24 Antibacterial agent 25 Hollow fiber membrane bundle 26 Cast resin partition

────────────────────────────────────────────────── ─── front page continued (51) Int.Cl. ⁶ identifications FI C02F 1/50 550 C02F 1/50 550B 560 560B 560E 1/68 510 1/68 510B 520 520M 530 530Z 540 540A 540D 540G

Claims (5)

[Claims] 1. A portable water purifier characterized in that a cartridge filter is accommodated in a housing having an elastic bellows-shaped body. 2. A first closing member having a raw water inlet on one end side of the bellows-shaped body, and the cartridge filter is detachably mounted on the other end side of the bellows-shaped body. 2. A portable water purifier according to claim 1, further comprising a second closing member having a holding member for holding the water and a permeated water outlet. 3. The portable device according to claim 1, wherein the holding member is provided with a sealing member for sealing a raw water side space and a permeated water side space in the housing in a liquid-tight manner. Water purifier. 4. A drain port is provided in the first closing member,
The portable water purifier according to claim 2 or 3, wherein an open / close valve is attached to each of the raw water inlet and the drain port, and a check valve is attached to the permeated water outlet. 5. The portable water purifier according to claim 2, wherein the second closing member is detachably provided on the other end of the bellows-shaped body. vessel.