JP4288371B1 - Simple filtration type water purifier using PET bottle - Google Patents

Abstract

【Task】
Provided is a simple water purifier capable of easily obtaining high-quality drinking water by repeatedly reusing a drinking PET bottle and filtering it using tap water or the like as raw water at home.
[Solution]
In the center of the upper and lower sides of the water purification cartridge containing the adsorbent filter medium, a screw receiving port corresponding to the screw port of the two types of large and small bottles is provided concentrically. Forms a penetrating air vent pipe and provides two water passage holes. Screw the plastic bottle with raw water into the receiving port at the top of the cartridge and the empty plastic bottle into the receiving port at the bottom, and filter the raw water with an adsorption filter. This is a simple water purifier that pours the purified water into an empty plastic bottle. When the surface of the purified water in the empty plastic bottle reaches the lower end opening of the air vent pipe, the gas-liquid replacement by the pipe stops and the injection automatically stops. .
[Selection] Figure 2

Description

  The present invention relates to a simple filtration type water purifier for purifying raw water such as tap water into purified water suitable for drinking more easily at home using a commercially available PET bottle container.

As a prior art related to the present invention, there is one described in Japanese Patent Application Laid-Open No. 2002-052382, for example, in which raw water put in a PET bottle is passed through an adsorption filter material to be filtered and purified.
The invention described in the above publication is invented by the inventor himself, but in order to achieve both the reduction of PET bottle pollution and the saving of resources by continuous reuse of PET bottles, There are only one type of plastic bottle screw-in ports, but there are two types of PET bottles that are currently widely distributed, large and small. It is better to provide a screw-in receptacle for two types of large and small PET bottles, and it is better to improve to cope with this, and it is structurally simpler to install an air vent pipe and a filtered water dropping pipe integrally. It was considered practical and the present invention was reached.

   The first problem of the prior art that pours raw water in a PET bottle through the gaps between the adsorbent filter media represented by activated carbon is that if the amount of water at the time of pouring is increased, the filtration time will be shortened, but purified water. The water quality of the water drops. On the other hand, in order to obtain good quality drinking water, it takes a long time for adsorbing water purification, so that it is not suitable for practical use in the open air in practice.

  Moreover, even if they are similar in principle but have complicated structures and handling, there are various difficulties in putting them into practical use and spreading.

  Furthermore, indoor sink-type water purifiers and faucet-fixed water purifiers are expensive, and are equipped with expensive filtration filters, hollow fiber filters, and porous filter media. The cleaning of the material had to be ensured as specified, and the maintenance cost was high. If this maintenance is neglected and the continuous use is continued, not only will the quality of the filtered water be deteriorated, but the dechlorination environment in the apparatus is also suitable for the propagation of various germs, and the anxiety as drinking water could not be wiped out.

  The second problem is that fresh water resources with only 0.03% of the earth's water are produced domestically in this age, when the absolute amount of fresh water resources will be insufficient in the future. In addition to the fact that they are imported from foreign countries and are wasted in large quantities, they are extremely unfavorable for water and container resources.

  By the way, the collection rate of PET bottles in Japan was 66.3% in 2006, the highest level in the world, but the production volume has also increased, and in 2006, the volume of waste was 36% compared to 540,000 tons. It has reached 10,000 tons. Therefore, the amount discarded as garbage without being recycled is increasing. The present invention has found such a problem as a solution that all households can easily practice in their daily lives.

  In the present invention, a commercially available plastic bottle is filled with raw water such as tap water and used as a water injection bottle, and the raw water passes through a filtering material of a water purification cartridge by a drop force, and an empty receptacle using a commercially available plastic bottle is used. An air vent pipe provided with a check valve at the top of the head of the water purification cartridge is vertically penetrated and attached so that the purified water filtered into the water bottle is dripped and collected without delay.

  The center of the upper half of the water purification cartridge and the lower half of the case so that two types of commercially available PET bottles with a large diameter of 35 mm and a small diameter of 27 mm, for example, can be used for both water injection and water reception. In the center of the case, the upper and lower receptacles corresponding to the above-mentioned two types of screw-in ports are concentrically arranged to reduce the amount of discarded PET bottles, and the raw tap water is used as raw water to make filtered purified water suitable for drinking. In this way, it is possible to reduce the waste of purchasing commercially available drinking water in plastic bottles.

  This saves on household expenses by eliminating the need to purchase potable water and reduces the waste of PET bottle resources that still have a higher disposal rate than the recovery rate through continued reuse of bottles, and also helps to recycle PET bottles. It is also effective in reducing energy costs consumed and preserving the global environment.

  When each household uses the present invention, a commercially available PET bottle for beverages is used repeatedly without being discarded, and thus has a great effect on resource reuse.

  Furthermore, if a plurality of sets of water purifiers are placed in a piled state and used, a plurality of water purifiers can be created at a time, which can be used not only for on-the-lock and coffee drinking but also for cooking and cooking.

  In addition, the raw water flowing down from the water injection bottle is one in which dissolved chlorine, bromine, mixed impurities, etc. are adsorbed and removed by the filter medium while passing through the water purification cartridge, and dropped into the water receiving bottle and collected. Then, when water purification is continued, the pores of the filter medium are gradually filled with the impurities removed by adsorption, and the adsorption power decreases. Then, the clogged state of the filter medium is also clogged, and the water flow rate becomes slow. Therefore, it is possible to know the replacement time of the filter medium with reference to the point in time when the dropping speed of the purified water to the water receiving bottle is slow.

  Purified water is not only delicious but also accepted by people interested in health and is effective in maintaining health.

  Hereinafter, the details of the present invention will be described with reference to the drawings.

As shown in Fig. 1, in the center of the upper half case 2 of the water purification cartridge 1 , upper receptacles 4 and 5 are provided concentrically corresponding to the two types of screw-in ports, large and small, respectively. Yes. Similarly, in the center of the lower half case 3 that fits liquid-tightly with the upper half case 2, the lower receptacles 6 and 7 respectively corresponding to the two types of screwed mouths of the large and small diameters of the water receiving bottle. Are provided concentrically.

  The height of the upper receptacle 4 and the lower receptacle 6 of the large-bore bottle is 17 mm, the height of the upper receptacle 5 and the lower receptacle 7 of the small-bore bottle is 13 mm, and the screwed PET bottle is either large or small Also, the tip of the screw-in port reached the packing sufficiently to ensure a liquid-tight state.

  This corresponds to the fact that most standards for the diameter of commercial bottles are two types, large and small.

  Inside the upper receptacle 5 of the small bottle so that the raw water 9 of the water injection bottle 8 screwed into the upper receptacle 4 or 5 of the upper half case 2 corresponding to the bottle diameter flows down into the water purification cartridge. A water passage hole 10 was opened at the location. The amount of water flow can be determined by the size of the diameter of the water flow hole 10. 11 is a packing that keeps the liquid-tight space between the screwed mouth of the screwed bottle and the upper and lower receptacles, and 12 is an air vent pipe that is partly fixed to the bottom wall at the center of the upper receptacle 5 of the upper half case 2. There is an air check valve 13 at the top of the head. 14 is a mesh bag-filled filter material filled in the space between the upper half case 2 and the lower half case 3 and having a through hole in the center, and is formed in a disk shape.

  The air vent pipe 12 passes through a through hole at the bottom center of the lower half case and protrudes downward, and a short gap is secured between the inner periphery of the through hole and the outer periphery of the pipe, and this is the filtered water passage 15 It has become.

The upper half case 2 to which the air vent pipe 12 is fixed is pulled out from the lower half case 3 combined in a liquid-tight manner so that the mesh bag-containing filter medium 14 formed in a disk shape can be replaced with one touch. Thus, the upper half and the lower half of the water purification cartridge 1 can be separated.

  The lower half case 3 is filled with a new disc-shaped filter medium 14, and the air vent pipe 12 is again passed through the through hole in the center of the filter medium from above, so that the upper half case 2 and the lower half case 3 Are combined liquid-tightly, the exchange of the filter medium 14 is completed.

  Next, the water purification process will be described.

First, in the water injection bottle 8 filled with the raw water, insert the air vent pipe 12 into the bottle with the upper surface of the water purification cartridge 1 facing downward, and rotate the cartridge 1 so that the screw port of the water injection bottle 8 is at the top. Screw in receptacle 4 or 5.

  When the air vent pipe 12 is inserted into the full water injection bottle, the air vent check valve 13 that prevents the raw water 9 from entering the pipe prevents the air from remaining in the pipe.

Next, the empty water receiving bottle 16 is screwed into the lower receiving port 6 or 7 of the water purification cartridge 1 facing upward with the screwing port thereof facing downward. Then, the two bottles and the entire cartridge are turned upside down, and dropped from above onto the ring-shaped support base 18 attached to the three base legs 17 for preventing the fall.

  This state is shown in FIG.

  FIG. 3 shows a ring-shaped support base 18 in which cartridges (bottles are omitted) with bottles attached to the upper and lower sides are installed inside. I made it smaller.

This support base 18 is grasped and fixed to the tip portions of the three rod-shaped base legs 17 shown in FIG.
A triangular pedestal fixing frame 25 is provided at a position about one-third from the upper end of the three pedestals, and each bar-shaped pedestal is fixed to each apex 26.

The three base leg tip portions 24 have a C-shaped shape for receiving and grasping the support base 18 from below, and the inner diameter d3 of the circle connecting the tips is larger than the outer diameter d4 of the ring-shaped support base 18. Make it a little smaller,
When the ring-shaped support base 18 is forcibly pushed into the C-shaped base leg tip 24 from above, the tip 24 is once opened outwardly, the support base enters, and then closes again. Hold it fixed.

The total length of the rod-like pedestal 17 is longer than the length to the lower end of the 3 liter PET bottle screwed into the lower side of the cartridge 1 .

  When the two bottles and the entire cartridge are turned upside down, the residual air in the air vent pipe rises and pressurizes the air reservoir 19 on the inner ceiling of the water injection bottle 8. This pressure becomes the starting force for lowering the raw water 9 and the raw water in the water injection bottle penetrates the mesh bag-containing filter material 14 inside the purification cartridge through the water passage 10 that determines the amount of water flow, and water purification begins. The dropping of the filtered drip water 20 into the water receiving bottle 16 is started.

  In the inventor's experiment, when the length of the upper air vent pipe is short, the amount of air in the pipe is small, and the rise of the air is suppressed by the water pressure of the raw water 9, and the force for starting the raw water down is insufficient. Therefore, the length of the pipe should be at least 15 cm.

  When the raw water 9 of the water injection bottle 8 drops and decreases, the air pressure in the water injection bottle decreases and the drop of the raw water 9 stagnates. Therefore, the stagnation can be solved by feeding the bubble 21 into the water injection bottle 8 decompressed through the air vent pipe 12 from the water receiving bottle 16 and increasing the air pressure in the bottle.

  When the tip of the air vent pipe 12 is buried in the raw water 9 of the water injection bottle 8, the air vent check valve 13 is closed to prevent the raw water 9 from flowing into the pipe, while the air from the water receiving bottle 16 is If the internal volume of the bottle 16 is sufficiently larger than the bottle 8, the raw water in the bottle 8 will not stagnate until the last drop. The descent continues.

  If the length of the pipe protruding downward from the lower receptacles 6 and 7 of the water purification cartridge is set to about 4 cm, the surface of the filtered water 22 accumulated in the water receiving bottle 16 is formed at the lower end of the air vent pipe 12. When contact is made, air venting stops and the descent of the raw water 9 from the water injection bottle 8 automatically stops at a position of about 4 cm from the mouth of the water receiving bottle 16. In other words, even if the water injection bottle 8 has an internal volume of 2 liters, and the amount of raw water almost filling it exceeds the capacity of the water receiving bottle 16 with an internal volume of 1 liter, it will not overflow, so it can be left for a long time. It is safe.

  An example of obtaining a large amount of purified water at the same time will be described.

    To make drinking water for multiple PET bottles, prepare multiple sets of simple filtration water purifiers described in Example 1, place them in a small space, and operate them all. The required amount of purified water can be obtained overnight.

  In the present invention, raw water such as tap water can be filtered and purified into drinking water easily and inexpensively and can be easily used in each household. Furthermore, the purified water is not only delicious but also accepted by people interested in health and is effective in maintaining health. Furthermore, the present invention is useful for effective use of plastic bottles, and the present invention contributes to society from the viewpoint of resource saving.

Schematic cross-sectional view of an embodiment of the water purification cartridge of the present invention Explanatory drawing which shows the simple filtration type water purifier which equipped with the water purification cartridge and utilized a PET bottle Explanatory drawing which shows the relationship between a water purification cartridge and a ring-shaped support stand Explanatory drawing showing the pedestal

Explanation of symbols

1 Water purification cartridge
2 Cartridge upper half case
3 Lower cartridge case
4 Upper receptacle of large bottle
5 Upper receptacle of small bottle
6 Lower receptacle for large bottle
7 Lower receptacle for small bottle
8 Water filling bottle
9 Raw water
10 Water vent
11 Packing
12 Air vent pipe
13 Air release check valve
14 Disc-shaped filter medium with mesh bag
15 Filtration water passage
16 Water receiving bottle
17 legs
18 Ring-shaped support base
19 Air reservoir
20 Filtration water
21 Air bubbles
22 filtered water
23 Sky
24 Base leg tip
25 base fixing frame
26 Vertex of triangle fixed frame
d1 Inner diameter of ring support
d2 Water purification cartridge side center outer periphery
d3 Inner diameter of the three-point circle at the tip of the base
d4 Ring support base outer diameter

Claims (2)

In the center of the upper half case of the water purification cartridge filled with filter media, the screw inlet of the water injection bottle is screwed in, and two upper and lower types of upper receptacles are provided concentrically.
In the center of the lower half case that is integrated with the upper half of the cartridge, a screw receiving port of the water receiving bottle is screwed in, and two types of large and small lower receiving ports are provided concentrically.
While passing through the air vent pipe in the center of the upper receiving port and fixing it, on both sides, open water passage holes where raw water in the water injection bottle flows down,
Surrounding the air vent pipe in the center of the lower receptacle, open a through hole that is slightly larger than its outer periphery, and let the purified water filtered by the water purification cartridge dripped from between this through hole and the air vent pipe,
The lower half of the water purification cartridge can be replaced by separating it from the upper half, and after replacement, it can be integrated with the upper half again.
The air vent pipe is fixed to extend upward from the center of the upper receptacle by a length of at least 15 cm and protrudes downward from the lower receptacle by about 4 cm,
Furthermore, a check valve is provided at the top of the pipe to release the air rising from the water receiving bottle into the upper water injection bottle,
The water purification cartridge is installed on a ring-shaped support base, and the support base is attached with a support for mounting a water filling bottle filled with water and an empty water receiving bottle up and down, and a leg for securing space. A simple water purifier using PET bottles. It has a support base for installing a water purification cartridge with water injection bottles filled with water and empty water receiving bottles at the top and bottom, and a pedestal that supports this support base,
The support base is installed by dropping the water purification cartridge from above into the inside, and its inner diameter is a ring shape slightly smaller than the outer peripheral diameter of the central part of the side surface of the water purification cartridge so that it receives the ring-shaped support base from the bottom. The three rod-shaped pedestals having a C-shaped tip are fixed at three vertices of the triangular pedestal fixing frame at a position about one third from the upper end, and 3 at the tip of the rod-shaped pedestal. The inner diameter of the circle formed by connecting the dots is set to be slightly smaller than the outer diameter of the ring-shaped support base, and the support base is pushed in from above to push open the C-shaped base leg tip and snap in. I was able to fit and fix up to
A simple water purifier using the plastic bottle according to claim 1.

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