JP2020110735A - Portable water purifier - Google Patents

Abstract

To provide a portable water purifier capable of disinfecting inside of a filter material of a water purifying cartridge in spite of its simple structure.SOLUTION: A portable water purifier 1 comprises a flexible cylindrical container body 2 having an opening and a bottom part, an inner lid body 3 that can be detachably attached to the opening of the container body 2 and comprises a protrusion 3b with a penetration hole 3ba formed therethrough, an outer lid body 4 that can detachably be attached to the inner lid body 3, a water purifying cartridge 5 that comprises a filtration material 51 with a hollow part 51a formed therein and a filtration-material storing body 52 for storing the same, which filtration-material storing body 52 comprises a cylindrical protrusion 52a with a flow passage 52b formed therethrough to communicate with the hollow part 51a of the filtration material 51, with the protrusion 52a being attachable and fixable to the penetration hole 3ba of the protrusion 3b of the inner lid body 3 either from outside or from inside of the inner lid body 3, and an air check valve 6 attached to the inner lid body 3 to enable air to flow only in one direction from outside to inside of the inner lid body 3.SELECTED DRAWING: Figure 1

Description

The present invention relates to a portable water purifier.

The portable water purifier has a container and a water purification cartridge attached to the container, puts raw water such as tap water into the container, and purifies the raw water with the water purification cartridge (water purification). Some portable water purifiers have no pressurizing means for water purification and some have a pressurizing means. The one without a pressurizing means (for example, Patent Document 1) purifies water by bringing the water into contact with the purifying material of the water purifying cartridge due to usual or intentional shaking of the portable water purifier. In a device having a pressurizing unit (for example, Patent Document 2), a flexible pressurizing unit is gripped and compressed to allow water to pass through a purifying material (filter material) of a water purification cartridge, and chlorine contained in raw water, It purifies by capturing impurities such as bacteria and inorganic particles.

The portable water purifier disclosed in Patent Document 2 has a flexible portion in a tubular container body of the container as a pressurizing means, and compresses this portion to pressurize the water, and The purified water is passed from the outside to the inside of the filter medium, and the purified water is discharged to the outside (such as inside the mouth) from a suction port provided on one side inside the filter medium. Since the container body serves as a pressurizing means and the mouthpiece is provided, it has a compact structure and is suitable for use outdoors.

JP, 2013-158659, A US Pat. No. 6,004,460

However, in the portable water purifier provided with the mouthpiece as disclosed in Patent Document 2, bacteria attached to saliva and the like may propagate inside the filter medium of the water purification cartridge through the mouthpiece. There is. Since chlorine contained in tap water is removed from the inside of the filter medium of the water purification cartridge, the environment is not easily sterilized.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a portable water purifier that has a compact structure and can sterilize the inside of the filter medium of a water purification cartridge.

In order to achieve the above object, the portable water purifier according to claim 1 can be detachably mounted on a flexible tubular container body having an opening and a bottom, and on the opening side of the container body. An inner lid body having a projecting portion with a through hole formed therein, an outer lid body that can be detachably attached to the inner lid body, a filter medium having a hollow portion, and a filter medium container that accommodates the filter medium. The filter medium container has a cylindrical projection portion in which a flow path communicating with the hollow portion of the filter medium is formed, and the projection portion of the inner lid body may be from inside or outside of the inner lid body. A water purification cartridge that can be attached and fixed to the through hole of the protrusion, and an air check valve that is attached to the inner lid and that allows air to flow from the outside to the inside of the inner lid only in one direction. It is characterized by being provided.

The portable water purifier according to claim 2 is the portable water purifier according to claim 1, wherein the outer lid is mounted on an outer peripheral surface of the protrusion of the inner lid. ..

The portable water purifier according to claim 3 is the portable water purifier according to claim 1 or 2, wherein the outer lid body has a cup shape having a side portion that can surround a side portion of the inner lid body. It is characterized by

The portable water purifier according to claim 4 is the portable water purifier according to any one of claims 1 to 3, wherein the container body has two or more annular recesses formed on its side portions. It is characterized by being

According to the portable water purifier of the present invention, the inside of the filter medium of the water purification cartridge can be sterilized while having a compact structure.

It is sectional drawing which shows the portable water purifier which concerns on embodiment of this invention. It is a front view which shows the container main body of a portable water purifier same as the above. It is a figure which shows the inner cover body (with an air check valve) of the said portable water purifier, Comprising: (a) is a top view, (b) is a front view. It is a figure which shows the outer cover body of the said portable water purifier, Comprising: (a) is a front view, (b) is a bottom view. It is a figure which shows the water purification cartridge of a portable water purifier same as the above, Comprising: (a) is a top view and (b) is a front view. It is sectional drawing which expands and shows the air check valve of the said portable water purifier, Comprising: (a) is sectional drawing in the state which the air cut|disconnected by the cut surface containing the sliding part of a check valve body is not introduce|transduced. , (B) is a cross-sectional view showing a state in which air is not introduced, which is cut by a cut surface that does not include the sliding portion of the check valve body, and (c) is a cut surface that does not include the sliding portion of the check valve body. It is sectional drawing of the state which the cut|disconnected air is introduce|transduced. It is sectional drawing which shows the state at the time of washing of the water purification cartridge of the same portable water purifier. It is sectional drawing which shows typically the flow of the water at the time of cleaning the water purification cartridge of the same portable water purifier.

Hereinafter, modes for carrying out the present invention will be described. As shown in FIG. 1, a portable water purifier 1 according to an embodiment of the present invention includes a container body 2, an inner lid body 3, an outer lid body 4, a water purification cartridge 5, and an air check valve 6.

As shown in FIGS. 1 and 2, the container body 2 is flexible and has a tubular shape having an opening and a bottom. More specifically, the term “flexible” means that the container body 2 is compressed and deformed when a force is applied, and the shape is restored when the force is relaxed. The material of the container body 2 is not particularly limited, but, for example, flexible polyethylene or the like can be used. The container body 2 has an opening on one side (upper side in FIGS. 1 and 2) and a bottom on the other side so that raw water such as tap water can be put therein. The bottom of the container body 2 is the bottom of the entire portable water purifier 1. As shown in FIG. 1, the portable water purifier 1 can be upright with its bottom portion facing down.

On the one side (opening side) of the container body 2, an inner lid body 3 described later in detail is detachably mounted. Therefore, the container body 2 has the male screw 2a formed on the outer side portion near the one end portion.

It is preferable that the container body 2 has two or more annular recesses 2b and 2b' formed on the sides thereof. Then, when the container body 2 grips and compresses the portion between the recessed portions 2b, 2b′ and the bottom portion, the portion between the recessed portions 2b, 2b′ and one end and the inner lid body 3 are compressed. It becomes difficult for the vicinity of the mounting part to deform. As a result, it is possible to eliminate the possibility of problems such as water leakage at the mounting portion of the inner lid body 3.

As described above, the inner lid 3 can be detachably attached to one side (opening side) of the container body 2. The inner lid 3 has a bottomed tubular shape. More specifically, as shown in FIG. 1, the inner lid 3 has a female screw 3a formed on the inner portion near the other end (lower side in FIG. 1) of the inner lid 3 and the container body 2 The inner lid body 3 is mounted so as to surround the outer portion near one end of the container body 2 by screwing the male screw 2a. In addition, an annular rubber packing 3A with which one end (opening side) of the container body 2 abuts is fitted into the inner lid body 3 at the fitting position. The inner lid body 3 (and the outer lid body 4) does not need to be flexible like the container body 2, and is usually hard (hard to deform). The material of the inner lid body 3 (and the outer lid body 4) is not particularly limited, but, for example, polypropylene or the like can be used.

Further, the inner lid 3 has a protrusion (inner lid protrusion) 3b as shown in FIGS. 1 and 3A and 3B. The protruding portion 3b is provided in the central portion on one side (the upper side in FIGS. 1 and 3B) of the inner lid body 3. The inner lid projecting portion 3b may have a cylindrical shape or a rectangular tube shape.

A through hole 3ba is formed in the axial direction of the inner lid protrusion 3b (see FIG. 3A). The through hole 3ba has a structure in which a filter medium container protruding portion 52a, which will be described later, of the water purification cartridge 5 can be mounted and fixed, and in detail, a female screw is formed.

The outer lid 4 can be detachably attached to one side (the upper side in FIG. 1) of the inner lid 3. The outer lid body 4 can be attached to the outer peripheral surface of the inner lid body projection portion 3b of the inner lid body 3. Specifically, as shown in FIGS. 1 and 4A and 4B, the outer lid body 4 has a cylindrical shape or a square shape that can be fitted to the outer peripheral surface of the inner lid body projection portion 3b of the inner lid body 3. It may have a cylindrical protrusion (outer lid protrusion) 4a. On the outer peripheral surface of the inner lid protrusion 3b of the inner lid 3, an O-ring 3B with which the outer lid protrusion 4a is in close contact is fitted at the fitting position.

Specifically, the outer lid body 4 is preferably a cup shape having a side portion 4b capable of enclosing the side portion of the inner lid body 3. This is so that the outer lid body 4 can be used as a cup. It should be noted that the outer lid body 4 may be provided only in the vicinity of the outer lid body projection portion 4a if it is not usable as a cup.

The water purification cartridge 5 has a filter medium 51 and a filter medium container 52.

A hollow portion 51a is formed in the filter medium 51. Specifically, the filter medium 51 may be a long cylindrical one. The material of the filter medium 51 is not particularly limited, but an activated carbon molded filter, a hollow fiber membrane, a flat membrane, a ceramic membrane, a laminated filter, a wound filter, a metal filter, or the like can be used.

The filter medium container 52 stores the filter medium 51. As the filter medium container 52, a cylindrical one can be used according to the shape of the filter medium 51, as shown in FIGS. 1 and 5A and 5B. Further, the filter medium container 52 can be separable into one side and the other side (up and down in FIG. 1) so as to exchangeably accommodate the filter medium 51.

The filter medium container 52 has a cylindrical protrusion (filter medium container protrusion) 52a. The filter medium container protruding portion 52a is provided in the central portion on one side (the upper side in FIGS. 1 and 5B) of the filter medium container 52. A channel 52b communicating with the hollow portion 51a of the filter medium 51 is formed in the axial direction of the filter medium container protrusion 52a. An end portion of the flow path 52b (an end portion on the opposite side to the hollow portion 51a side) serves as a purified water outlet 52ba through which purified water flows out. The filter medium container protruding portion 52a has a structure that can be mounted and fixed to the through hole 3ba of the inner lid protruding portion 3b from the inner side of the inner lid body 3. Specifically, a male screw is formed to form the through hole 3ba. Screw on the female screw. The filter medium container projecting portion 52a can be attached and fixed to the through hole 3ba of the inner lid projecting portion 3b from the outside of the inner lid body 3, that is, in the opposite direction so that the water purification cartridge 5 can be washed as described later. Is.

The filter medium container 52 has a plurality of inlets 52c through which raw water flows in on its side portion. The other side (lower side in FIGS. 1 and 5B) of the filter medium container 52 closes the other side opening of the hollow portion 51 a of the filter medium 51.

The air check valve 6 is attached to the inner lid 3. The air check valve 6 allows air to flow from the outside to the inside of the inner lid body 3 in only one direction. The structure of the air check valve 6 is not particularly limited, but as shown in FIG. 6A, the check valve body is formed in the check valve chamber 61 a formed by the check valve chamber member 61. What is provided with 62 can be used. The check valve chamber member 61 is formed with an air passage 61b that can communicate the outside with the check valve chamber 61a. In addition, an air passage 3c that connects the inside of the inner lid body 3 and the check valve chamber 61a is formed in the portion of the inner lid body 3 to which the air check valve 6 is attached. Further, the check valve body 62 is provided with a plurality of sliding portions 62a (for example, four places) so as to slide along the inner wall of the check valve chamber member 61. FIG. 6B is a cross-sectional view taken along a cut surface that does not include the sliding portion 62a.

The check valve body 62 closes the air passage 61b when the air pressure inside the inner lid body 3 is equal to or greater than the outside (see FIGS. 6A and 6B). The check valve body 62 is made of a material that closes the air passage 61b and is easily brought into close contact with the check valve chamber member 61, and for example, silicone rubber or the like can be used. When the air pressure inside the inner lid body 3 is lower than the outside, the check valve body 62 opens the air passage 61b as shown in FIG. 6(c), and the air causes the check valve chamber 61a to open from the outside. It is introduced through the inside of the inner lid body 3.

The portable water purifier 1 having such a configuration can be used as follows. That is, first, the inner lid body 3 (and the outer lid body 4) is removed from the container body 2 and raw water such as tap water is injected. After that, when the inner lid body 3 and the outer lid body 4 are attached, the portable water purifier 1 can be carried. At the time of drinking, when the outer lid body 4 is removed from the inner lid body 3 and the container body 2 of the portable water purifier 1 is compressed, purified water flows out from the water purification port 52ba. At this time, in the water purification cartridge 5, the pressurized raw water flows in through the plurality of inlets 52c, and when the raw water contains impurities such as chlorine, microorganisms (bacteria, bacteria, etc.), inorganic particles, etc. It is captured by 51 and becomes purified water. The purified water flows out of the purified water outlet 52ba through the hollow portion 51a and the flow path 52b. At this time, the air passage 61b of the air check valve 6 is in a closed state, and the internal air or raw water does not flow out through the air passage 61b.

The purified water flowing out from the purified water outlet 52ba can be drunk with the purified water outlet 52ba included in the mouth. Further, when the outer lid body 4 is used as a cup, purified water can be poured into the outer lid body 4 for drinking. It becomes more hygienic when the purified water is poured into the outer lid body 4 for drinking.

When the compression of the container body 2 is completed, the outflow of purified water stops. Further, by doing so, the shape of the container body 2 is restored, the air passage 61b of the air check valve 6 is opened, and air is introduced into the container body 2 (and the inner lid body 3).

In this way, the portable water purifier 1 has a compact structure because the purified water flows out from the water purification port 52ba of the water purification cartridge 5 mounted on the inner lid 3 to the outside.

The portable water purifier 1 can wash the water purification cartridge 5 as follows. That is, first, the inner lid body 3 and the outer lid body 4 are removed from the container body 2, and tap water is injected. The water purification cartridge 5 is separated from the inner lid 3. Then, as shown in FIG. 7, the filter medium container protruding portion 52a of the water purification cartridge 5 is reversely attached to the through hole 3ba of the inner lid protruding portion 3b of the inner lid 3 and fixed, that is, the water purification cartridge 5 is fixed. The inner lid 3 is attached to the container body 2 in the opposite direction, and the inner lid 3 is attached to the container body 2. Then, when the portable water purifier 1 is tilted upside down or obliquely at a place such as a sink to compress the container body 2, the tap water that has been pressurized becomes the water purification port 52ba as indicated by a broken line with an arrow in FIG. Flows in the reverse direction into the flow path 52b and the hollow portion 51a of the water purification cartridge 5, passes through the filter medium 51 from the inside to the outside, and is discharged to the outside of the water purification cartridge 5. At this time, the impurities trapped and accumulated in the filter medium 51 are discharged to the outside of the water purification cartridge 5, and the inside of the filter medium 51 is sterilized by chlorine contained in the tap water.

Although the portable water purifier according to the embodiment of the present invention has been described above, the present invention is not limited to the one described in the above-described embodiment, and can be various within the scope of the matters described in the claims. Design changes are possible.

1 Portable Water Purifier 2 Container Body 2a Male Thread of Container Body 2b, 2b' Recess of Container Body 3 Inner Lid Body 3a Female Thread on Side of Inner Lid Body 3b Inner Lid Projection (Inner Lid Projection)
3ba Through hole of protrusion of inner lid 3c Air passage of inner lid 3A Rubber packing 3B O-ring 4 Outer lid 4a Outer lid protrusion (outer lid protrusion)
4b Side part of outer lid 5 Water purification cartridge 51 Filter medium 51a Hollow part of filter medium 52 Filter medium container 52a Projection part of filter medium container (projection part of filter medium container)
52b Filter medium container flow path 52ba Purification port 52c Filter medium container inlet 6 Air check valve 61 Check valve chamber member 61a Check valve chamber 61b Check valve chamber member air passage 62 Check valve body 62a Check valve Sliding part of valve body

Claims (4)

A flexible tubular container body having an opening and a bottom,
An inner lid body that can be detachably mounted on the opening side of the container body, and that has a projection portion having a through hole formed therein;
An outer lid that can be removably attached to the inner lid,
The filter medium has a hollow portion and a filter medium container for containing the filter medium, and the filter medium container has a cylindrical protrusion having a flow path communicating with the hollow portion of the filter medium. A water purification cartridge whose part can be attached and fixed to the through hole of the protrusion of the inner lid body from both inside and outside of the inner lid body,
An air check valve which is attached to the inner lid and allows air to flow only from one direction to the inside of the inner lid from the outside,
A portable water purifier characterized by comprising: The portable water purifier according to claim 1,
The portable water purifier, wherein the outer lid is mounted on the outer peripheral surface of the protrusion of the inner lid. The portable water purifier according to claim 1 or 2,
The portable water purifier, wherein the outer lid body is a cup shape having a side portion that can surround a side portion of the inner lid body. The portable water purifier according to any one of claims 1 to 3,
The portable water purifier is characterized in that the container body is formed with two or more annular recesses on its side.

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