JPH0710207B2 - Filtration device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is installed in a water bath and the water in the water tank under pressure air from the air pump so that suction filtration, goldfish, tropical fish, etc., filtration equipment of rearing water for ornamental fish about the.

[0002]

2. Description of the Related Art Conventionally, an air injection port connected to an air pump has been used.
A plate-shaped filter material is wound in a cylindrical shape on the bottom wall that opens at the top and the holding frame.
One filtration unit mounted on the bottom wall.
Cover the filtration unit with the open lower end
It is a cover that is detachably attached by the bottom wall unit.
The filter unit, and at the top of the cover unit.
A drainage pipe and a water intake hole are provided to blow air into the filtration unit.
A purification chamber that communicates with the injection port and the water intake hole should be
Worked with the bar to define each unclean room
Those described in, for example, Japanese Patent Publication No. 61-15724.
It is conventionally known as described above.

[0003]

By the way, in such a conventionally known filtering device, a filtering casing including the cover and the bottom wall is formed.
Since only one filtration unit can be installed in the base,
Trying to obtain multiple types of filtration devices with different filtration capabilities
In some cases, there are multiple sizes that correspond to the filtration capacity.
Different filtration units and corresponding to these filtration units
It is necessary to specially prepare multiple types of dedicated filtration cases.
Yes, there is a problem that the cost increases, and
Trying to change the filtration capacity of in-use filtration equipment in the future
If you have a new filtration capability that you are going to change
Easy to change because it is necessary to prepare a separate filtration device
There were also problems such as not being.

The present invention has been made in view of the above circumstances and uses a single type of filtration unit and filtration case.
Another object of the present invention is to provide the above-mentioned filtration device whose filtration capacity can be easily changed as appropriate .

[0005]

In order to achieve the above object, according to the present invention, a filtering device is installed in a water tank and is adapted to receive pressure air from an air pump to suck and filter water in the water tank. in a bottom wall unit having an open air injection port communicating with the air pump at the top, and at least two filtration units are stacked on the bottom wall unit, an open lower end with covering the the filtration unit by the bottom wall unit The filter unit includes a cover unit to be closed, and each of the filtration units is wound around the holding frame in a tubular shape.
And a plate-shaped filter medium, the air injection port being provided inside the filter medium.
A purification chamber that communicates with the outer circumference of the filter medium and the cover unit.
An unpurified chamber is formed between the knit and the cover unit , and the cover unit has one drainage cover integrally having a drainage pipe communicating with the purified chamber in the upper part, and the upper and lower ends are opened.
Formed by arranging at least one cover connection formed in a cylindrical shape vertically, the bottom of the cover the waste water,
The first locking portion that disengageably to any of the second engaged portion provided on the first engaged portion and the upper portion of the connection cover which is provided on the bottom wall unit, also cover each connection the bottom of the second engaging portion which disengageably to any of the first engaged portion and the other of the second engaged portion of the connecting cover is provided respectively, further the cover unit Has a water absorption hole communicating with the unpurified chamber.

[Work] According to the above configuration, one drain cover and
Arrange as many upper and lower connecting covers as you like.
Through the first or second locking portion and the second engaged portion
Cover unit and its cover
The above first or so as to close the open lower end of the bar unit
A bottom wall unit that is locked through the second locking portion and the first engaged portion.
Arbitrary number of filtration units stacked between knits
The filtration device is configured by setting in the state. Therefore, one
Filter unit and connection cover to be used in the filter device
Simplifying the filtration capacity of the filtration device by selecting the number of each
Since it can be adjusted to increase or decrease, multiple types of filters with different filtration capabilities can be used.
When manufacturing a filter device, common parts are used between filter devices.
It is possible to achieve the
To increase or decrease the filtration capacity of the equipment in the future
Part of the component before the change or Keep everything alive
However, it can be done very easily.

[0006]

EXAMPLES Hereinafter, the embodiment of the filtration device of the present invention will be described with reference to the drawings, a filtration device F of this embodiment in FIG. 1
Is shown installed in the water tank 1, and this filtering device F includes one first filtering unit U ₁ as a bottom wall unit and a small number of units mounted on this first filtering unit U _1.
If at least one (two in the case shown in FIG. 1) second filtration unit U ₂ and this second filtration unit U ₂ are coated ,
Both are composed of a cover unit U ₃ whose open lower end is closed by the first filtration unit U ₁ .

As shown in FIG. 3, the first filtration unit U ₁ is provided with a saucer-shaped filter medium accommodating body 2 having a polygonal shape when viewed from a plane having an open upper surface. A pair of engagement pieces 3 as first engaged portions are integrally formed on both sides of the outer side surface of the filter medium container 2, and a large number of support ribs 4 and four locking projections are formed on the inner side surface. The part 5 is integrally formed. A large number of water absorption holes 6 are radially provided on the bottom surface of the filter medium container 2, and
A short-cylindrical air supply pipe 7 having an air injection port 7a is integrally projectingly provided at the center thereof. As shown in FIG. 1, inside the air supply pipe 7 having a stepped portion 7b, a hollow air injection cylinder 8 made of a breathable material such as foamable synthetic resin and having a closed upper end is provided at the lower end thereof. The step portion 7b is brought into contact with and fitted. The hollow inside of the air supply pipe 7 is connected to the inner end of an air supply passage 9 formed integrally with the bottom surface of the filter medium container 2, and the outer end of the air supply passage 9 is opened to the side surface of the filter medium container 2. It A connector 10 is removably fitted to the outer end of the air supply passage 9 that opens to the side surface of the filter medium container 2, and the connector 10 is connected to an air pump P via an air supply pipe 11. A plurality of support ribs 12 are integrally formed on the outer peripheral surface of the air supply pipe 7 at equal intervals in the circumferential direction (see FIG. 3).

The lid 14 of the filter body 2 is detachably attached to the upper opening of the filter medium store 2. That is, the recess 14a that can be engaged with the locking projection 5 of the filter medium container 2 is formed around the lid body 14, and the opening of the filter medium container 2 is formed by engaging these with each other. Is lid 1
Covered with 4. In this case, the back surface of the lid 14 is supported by the large number of support ribs 4 and 12. An air through hole 15 facing the air injection port 7a is formed in the center of the lid body 14, and a large number of through holes 16 are radially formed around the air through hole 15. The filter case 2 and the lid 14 constitute a closed case 17, and the closed case 17 is made of a small stone or the like that acts as a weight for preventing the filter F from rising. A coarse granular filter material 18 is enclosed.

The second filtration unit U ₂ placed on the closed case 17 is a dense plate-like member made of a holding frame 19 and a porous synthetic resin material wound around the holding frame 19 in a tubular shape. It is composed of a filter medium 20. As shown in FIG. 1 and FIG. 3, the holding frame 19 has a plurality of drain holes 21 formed in the center thereof and a star-shaped ceiling plate 22 when viewed from above and a polygonal bottom plate 23 when viewed from above. The bottom plate 23 has an opening portion 25 communicating with the air passage hole 15 of the lid body 14 at the center thereof, and a large number of through holes 26 around the opening portion 25. Are pierced radially. Ceiling plate 22
A plurality of locking projections 27 extending downward at equal intervals are integrally provided around the drainage port 21 on the lower surface of the bottom plate 2 and
Also on the upper surface of 3, a locking projection 28 is provided facing the locking projection 27.
Are projected integrally.

As shown in FIG. 2, the plate-like filter medium 20 has an inner peripheral surface on the connecting rod 24 and an outer peripheral surface on the ceiling plate 22.
And the locking projections 27 and 28 provided opposite to the bottom plate 23 are alternately locked and fixedly held by the holding frame 19, that is, the plate-like filtering material 20 is bent in a wave shape and is wound in a tubular shape. And is placed on the first filtration unit U _{1 in the} closed state. Further, a purification chamber 29 having a relatively large volume is formed inside thereof, which communicates with the inside of the closed case 17 through the circulation hole 16 and the communication hole 26 and also communicates with the air injection port 7a. cooperates with the inner side of the cover unit U ₃ defines an unpurified chamber 30.

The cover unit U ₃ can be fitted and connected to the drain cover 31a in the shape of a rectangular tube and the open lower end of the cover 31a.
At least one cylindrical connecting cover 31b
The number of stacked layers of the connection cover 31b arranged below
Is the required filtration capacity of the filtration device F (ie the second filtration unit).
It is changed according to Tsu lamination number of bets U _2).

At the center of the upper surface of the drainage cover 31a, a drainage pipe 32 connected to the purification chamber 29 is integrally projected.
Around the drain pipe 32, a large number of water absorption holes 33 communicating with the unpurified chamber 30 are radially formed. On both sides of the lower end of the side surface of the drainage cover 31a, the engaging pieces 3 and 3 of the filter medium container 2 and the engaging piece 3 of the connection cover 31b which will be described later.
A pair of locking claws 34, 34 as a first locking portion that can be engaged and disengaged with any of the locking holes 6, 6 and 36 are integrally formed. A notch 35 is formed which can be a relief for the connector 10 connected to the connector 9.

The tubular cover 31b is a second filtration unit.
It has a height that can accommodate U ₂
Is the pair of engaging pieces 36, 36 as the second locked portion.
However, on both sides of the lower end, the filter medium container 2 is engaged.
Pieces 3, 3 and the engaging piece 3 of the other connection cover 31b
A pair as a second locking portion that can be engaged and disengaged with any of 6 and 36.
Locking claws 37, 37 are integrally formed. Engagement of these
The piece 36 and the locking claw 37 are engaged with the filter medium container 2
, Respectively Re locking claws 34 and its pieces 3 and drainage cover 31a is formed in the same shape and size. In addition, among the plurality of cylindrical covers 31b, at least the cover 31b connected to the closed case 17 is provided with a notch 38 that can be a relief for the connector 10.

When assembling the filtration device F having the above structure
Is the second filtering unit U ₂ on a first filtering unit U ₁
After placing the tubular cover 31b on the first filtration unit U ₁
Connected to the second filtration unit U ₂ and then the next
2 After mounting the filtration unit U ₂ , the cylindrical cover 31
Connect the next cylindrical cover 31b to b and repeat this work in sequence.
After returning, finally cover the drainage cover on the topmost cylindrical cover 31b.
-31a are connected. Alternatively, the first filtration unit U ₁
After stacking a plurality of second filtration units U ₂ on top,
Connected drainage cover 31a and a plurality of cylindrical covers 3
1b is put on the second filtration unit U ₂ group and at the bottom
The cylindrical cover 31b is connected to the closed case 17.

Therefore, the number of stacked stages of the second filtration unit U ₂ is
Appropriate selection (for example, 2 steps in the case of FIG. 1,
3 stages), the area of the plate-like filter medium 20 is appropriately increased.
It can be reduced according to the volume of water to be purified.
It is possible to adjust the purification capacity of the filtering device F. Only
Depending on the number of stacked stages of the second filtration unit U _2.
Connection cover 31b and drainage cover 3 that should cover these
The overall shape and size of the 1a filtration case is simple.
Can be changed to have the desired filtration capacity
The filtering device can be configured without difficulty, and the filtering ability is different.
It is possible to easily obtain a plurality of types of filtration devices at low cost.
Also, the filtration capacity of the filtration device once assembled
Easy to make changes while making the most of the original components
It can be carried out.

[0016] Next, you description of the operation of this embodiment.
Now , as shown in FIG. 1, when the filtration device F configured as described above is installed on the bottom surface of the water tank 1 on which pebbles and the like are laid and the air pump P is operated, the air pump P causes the air supply pipe 11,
Air injection port 7a via connector 10 and air supply passage 9
Is supplied to the purifying chamber 29 inside the plate-like filter medium 20 through the air injection cylinder 8 in a bubble form. The jetted air becomes an air current and rises in the purification chamber 29, and accordingly, the water in the purification chamber 29 also rises and is discharged into the water tank 1 through the drainage port 21 and the drainage pipe 32. As a result, the water absorption force acts on the purification chamber 29 and the water tank 1
As shown by the arrow in FIG. 1, a part of the polluted water in the inside is sucked into the unpurified chamber 30 through the water absorption hole 33 on the upper surface of the drainage cover 31a and then permeated through the plate-shaped filter medium 20 to be cleaned. After being cleaned, the closed case 1 flows into the purification chamber 29, and the other part passes through a gap such as pebbles spread on the bottom of the water tank 1.
No. 7, the granular filter medium 18 is sucked into the closed case 17 through the water-absorbing holes 6 formed in the filter medium container 2 and accommodated therein.
After passing through and being cleaned, it flows into the purification chamber 29 through the through hole 16 of the lid 14 and the through hole 26 of the bottom plate 23.
Then, the water in the purification chamber 29 that has been purified by passing through both the filtering materials 18 and 20 passes through the drain port 21 opened in the ceiling plate 22 together with the air jetted into the purification chamber 29 from the air injection cylinder 8. It flows into the drain pipe 32, and from there, is returned to the water tank 1 as clean water.

According to the configuration of the above embodiment , the plate-like filter material 2
Since 0 has a higher water flow resistance than the granular filter medium 18, the flow velocity of the contaminated water passing through it is relatively small, and the plate-like filter medium 20 is useful such as chlorella that is less likely to occur when the flow velocity is high. By promoting the growth of aerobic microorganisms including bacteria, the aerobic microorganisms can decompose organic matter such as residual food and feces adhering to the plate-like filter material 20 to prevent clogging, and bacteria such as chlorella. The aquarium 1
It can be used as a live feed for the viewing fish inside.

Further, the plate-shaped filter medium 20 is more likely to cause clogging than the granular filter medium 18, but the water in the water tank 1 has water absorption holes 6
Since it constantly flows into the purification chamber 29 through the granular filter material 18 having a relatively small water resistance in the closed case 17, a water absorption force is always generated in the purification chamber 29, and therefore, the inside of the unpurified chamber 30. Water passes through the plate-shaped filter material 20 and the purification chamber 2
9, the water flow from the unpurified chamber 30 to the purified chamber 29 is not interrupted, and the good filtration effect of the plate-shaped filter medium 20 can be maintained for a long period of time.

By the way, according to the use of the filtering device F, the granular filter material 18 in the first filtering unit U ₁ and the plate-like filter material 20 of the second filtering unit U ₂ are gradually fed with residual food, feces and the like. Since the dirt adheres and accumulates, it is necessary to regularly clean or replace these filter media 18, 20. In such a case, the units U ₁ , U ₂ and U ₃ can be disassembled. . That is, the filtering device F is gripped and the engagement piece 3 of the closed case 17 and the connection cover at the lowermost stage are held.
As shown in FIG. 4 , it is possible to easily disassemble the first filtration unit U ₁ , the second filtration unit U ₂ and the cover unit U ₃ simply by disengaging the engagement claws 37 of the 31b .
In this case, the granular filter material 18 is enclosed in the closed case 17 so that it does not spill or scatter from the case 17 during the disassembling work, and the plate-like filter material 20 is attached to the holding frame 19. Since it is held and fixed, it does not move or deform during disassembly. Therefore, the filter device F can be easily disassembled and assembled.

Then, if the first filtering unit U ₁ is gripped and shaken while sprinkling water on it, the dirt attached to and deposited on the granular filtering material 18 can be easily removed, and the plate-shaped filtering material 20 is removed from the holding frame 19. If it is removed and washed, the dirt attached to and deposited on the plate-shaped filter material 20 is removed.

Since the closed case 17 can be opened and closed by the lid 14, it is possible to take out the granular filter material 18 from the case 17 as needed.

Although the embodiments of the filtration device according to the present invention have been described in detail above, the present invention is not limited to the above embodiments, and does not depart from the present invention described in the claims. It is possible to make various small design changes.

For example, in each of the above-described embodiments, the drainage cover 31a or the tubular cover 31b and the closed case 17 are continuously detached, the drainage cover 31a and the tubular cover 31b are continuously detached, or the tubular cover 31b. An example in which the engaging pieces 3 and 36 and the locking claws 34 and 37 are used for continuous release of each other has been shown, but the invention is not limited to this, and, for example, a step portion or the like that can be fitted to each member This may be detachably connected.

[0024]

As described above, according to the present invention, one discharge
Arrange the water cover and any number of connection covers vertically.
Cover obtained by locking the covers together
Close the open bottom to the unit and its cover unit
Between the bottom wall unit and the bottom wall unit
Configure the filtration device by setting the excess units in a vertically stacked state
So that it should be used in one filtration device
Filter by selecting the number of units and connecting covers.
It is possible to easily increase or decrease the filtration capacity of the filtration equipment, and thus manufacture multiple types of filtration equipment with different filtration capacities.
The parts are shared between the filtration devices and the cost is reduced.
Can contribute greatly to preparative savings, also be such that future decrease change filtering capacity of the assembled filtration device once, while making it the components before the change pole
Umate it is convenient to be able to easily perform.

[Brief description of drawings]

FIG. 1 is a cross-sectional view taken along line 1-1 of FIG. 2, showing a state of installation of a filtration device embodying the present invention in a water tank.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is an exploded perspective view of a filtration unit .

[Fig. 4] The whole of the filtration device when the filtration unit has three layers.
Body exploded perspective view

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Water tank 3 Engagement piece 7a as a first engaged portion 19 Air injection port 19 Holding frame 20 Filtration material 29 Purification chamber 30 Unpurified chamber 31a Drain cover 31b Connection cover 32 Drain pipe 33 Water absorption hole 34 First locking Locking claw 36 as a part Engaging piece 37 as a second engaged part 37 Locking claw as a second locking part F Filtration device P Air pump U ₁ First filtration unit as a bottom wall unit U _{2 As a} filtration unit second filtering unit U ₃ cover unit

Claims (1)

[Claims] 1. A filter device, which is installed in a water tank (1) and receives pressured air from an air pump (P) to suck and filter the water in the water tank (1), the air connected to the air pump (P). A bottom wall unit (U ₁ ) having an injection port (7a) opened at the top, and at least two filtration units (U ₂ , stacked on the bottom wall unit (U ₁ ).
U ₂ ) and a cover unit (U ₃ ) that covers the filtration units (U ₂ , U ₂ ) and has an open lower end closed by the bottom wall unit (U ₁ ). ₂ ) is a holding frame (19) and this holding frame (1
9) with a plate-shaped filter material (20) wound in a tubular shape
Inside the filter medium (20) is connected to the air injection port (7a).
The purifying chamber (29) passing therethrough and the outer periphery of the filter medium (20)
An unpurified chamber (30) between the cover unit (U ₃ )
And the cover unit (U ₃ ) includes a drainage cover (31a) integrally having a drainage pipe (32) communicating with the purification chamber (29) at an upper portion, and an upper and a lower drainage cover (31a).
Is configured and at least one of the connection cover is formed in a cylindrical shape having an open end (31b) are arranged vertically, the under part of the drainage cover (31a), the bottom wall unit (U ₁ first engaged portion provided on) (3) and the second engaged portion either to the first locking part which disengageably also of (36) provided in the upper portion of the connection cover (31b) ( 34), also in the lower part of the cover (31b) for each connection, any of the first engaged portion (3) and the second engaged portion of the other of the connection cover (31b) (36) The second locking part (3
7) are provided respectively, and the cover unit (U
₃ ) is a water-absorbing hole (3) communicating with the unpurified chamber (30).
3) A filtration device characterized by being opened.