JP3311053B2 - Filtration device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter installed in an aquarium for ornamental fish such as goldfish and tropical fish for purifying water in the aquarium.

[0002]

2. Description of the Related Art Conventionally, the above-mentioned filtration devices are broadly classified into an internal filtration device provided inside a water tank and an external filtration device provided outside the water tank, and as the internal filtration device, for example, Japanese Utility Model Publication No. 58-43937. And Japanese Patent Publication No. 60-7932.

[0003]

In the internal filter device, the filter device is provided in a submerged state in a water tank, and water is circulated and filtered in the water tank. Therefore, the filtration efficiency is good, and a place outside the water tank is required. There is an advantage that the appearance is better, but since the filtering device is provided in the water tank,
The ornamental fish in the aquarium may hit the hard filtration case and be damaged, and the fry and small fish may be caught between the wall surface of the filtration device and the water tank, the gap between the filtration devices, or opened in the hard filtration case. Can be sucked into the suction port of the fish and cause death.Furthermore, because the filter media is contained in the filter case, fish cannot adhere to the filter media and eat live food such as rotifers that have propagated. This causes clogging of the filter medium, and also has various inconveniences such as maintenance of cleaning and replacement of the filter medium is troublesome.

Accordingly, the present applicant has developed a novel filtration device which has solved all of the above disadvantages, and has already filed a patent application (Japanese Patent Application No. Hei.
No. -299983).

The size of the water tank in which the filtration device is housed is 30 cm, 60 cm, 90 cm.
cm, 120cm), and even one water tank has the front,
Since the size of the mounting surface such as the side surface is large or small, manufacturing the filtering device corresponding to each of these sizes has a problem that the manufacturing cost increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has a configuration in which all water tanks can be accommodated by combining a plurality of filter medium holding units that are modularized with a filter medium holder constituting a filtration device as a reference unit. It is an object to provide a simple filtration device.

[0007]

Means for Solving the Problems To achieve the above object, a first feature of the present invention is that a water tank is detachably attached to substantially the entire inner wall surface in a water tank, and the water stored in the water tank is provided. A filter device for purifying the filter, wherein a filter medium holder detachably attached to one inner surface of the water tank, a resilient filter medium detachably held by the filter medium holder, and water stored in the water tank, A forced recirculation device for forcibly refluxing the water into the water tank via the pulp filter medium and the filter medium holding body, wherein the filter medium holding body includes a plurality of modularized filter medium holding units and the filter medium holding units. The pulp filter medium has a filter surface that has both left and right end surfaces in close contact with opposing inner surfaces of the water tank and directly contacts the water in the water tank on its surface. It consists of a single elastic body.

[0008] A second feature of the present invention is that:
In addition to the first feature, the connecting means includes a connected portion formed on each of two adjacent filter medium holding units, and the connected portion while expanding the filter medium holding unit outward in the width direction. And a fastening piece for integrally fastening and fixing the connecting piece to the filter medium holding unit.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a state in which the filtration apparatus of the present invention is mounted in a water tank, FIG. 2 is a front view of the filtration apparatus taken along a line 2 in FIG. 1, and FIG. Top view of a visual filtration device,
FIG. 4 is a front view of the filtering device from which the pulp filter medium is removed.

The filtering device comprises a filter medium holder H and a resilient filter medium F detachably held thereby. The filter medium holder H is a modularized hard synthetic resin 2
The filter medium holding units H ₁ and H ₂ are connected to each other by a connecting means Co so as to be adjustable in the lateral width direction (horizontal direction in FIGS. 2 and 4) and formed into a rectangular plate shape. And the filter medium holder H
Are formed in a rectangular plate shape so that both end surfaces and a lower end surface thereof are in close contact with the opposing inner side surface and the lower surface of the water tank V without gaps.

FIG. 5 is a cross-sectional view taken along line 5-5 of FIGS. 2 and 4, FIG. 6 is a cross-sectional view taken along line 6-6 of FIGS.
Is a longitudinal sectional view along line 7-7 in FIGS. 2 and 4, FIG. 8 is a longitudinal sectional view along line 8-8 in FIGS. 2 and 4, and FIG. 9 is a sectional view along line 9-9 in FIGS. FIG. 10 is a vertical sectional view taken along the line 10- in FIGS.
FIG. 11 is a longitudinal sectional view taken along line 10, and FIG.
FIG. 12 is a vertical sectional view taken along line 1, and FIG.
13 is a cross-sectional view taken along the line, FIG. 13 is the same cross-sectional view as FIG. 12, showing a state before the filter medium holder and the pulp filter medium are assembled, FIG.
(A), (B), (C), and (D) are front views of a connecting means showing a connecting procedure of a filter medium holding unit, and FIG.
FIG. 16 is a front view of a connecting piece, FIG. 17 is a vertical sectional side view of the connecting piece, FIG. 18 is a front view of a fastening piece, and FIG. 19 is a vertical sectional side view of the filter medium holding unit. is there.

Next, referring to FIGS. 5 to 19, specific structures of the filter medium holder H and the elastic filter medium F will be described with reference to FIGS.

[0014] As shown in FIG.
, First filter medium holding unit H ₁And second filter media
Holding unit H_TwoAre connected by connecting means Co, which will be described in detail later.
And the first filter medium holding unit H₁The width of the
2 Filter medium holding unit H_TwoTwice the width of the
I have.

As shown in FIGS. 4 to 6, the first filter medium holding unit H
_1, the back of the top plate 1 _1, which is formed in the cross-sectional corrugated, the back plate 2 ₁ becomes polymerized joined together, the four corners of the top plate 1 _1,
Four suckers 3 is mounted detachably, respectively, to the glass surface of one side of these suction cups 3 aquarium V through notch back plate 2 _1, is detachably adsorption, thereby the filter medium holding unit H ₁ is It is detachably held in close contact with the inner surface of one side of the water tank V. A cut-out hole 4 for accommodating the water pump P is formed in _one of the lower corners of the first filter medium holding unit H1 (lower left corner in FIG. 4). Also provided in the first filter medium holding unit H ₁ in three secondary filtration chamber 5 ₁ 1,5 ₁ -2 and 5 ₁ -3 forming the long rectangular bag-like up and down are formed in parallel with each other, their Each of the secondary filtration chambers is filled with small stones 6 such as Oiso. And in front i.e. top plate 1 ₁ of those secondary filtration chamber 5 ₁ -1～5 ₁ -3, and a large number of small holes made of the inlet 7 ... each opening, through which the inlet 7 ... The water that has passed through the pulp filter medium F, which constitutes the primary filter medium in the water tank V, is discharged to the secondary filtration chamber 5 ₁ −
Each of them is distributed into and flows into _{1 to} 51-3. The secondary filter chamber 5 ₁ -1～5 ₁ -3 side consisting respective plurality of small holes in the outlet 8 ... are opened, they secondary filter chamber water each outlet 8 ... through Spilled out of them.

Also, as shown in FIGS.
_A water suction pipe 9 is vertically provided between 1-1 and the secondary filtration chamber 5 _1-2, and a lower end of the suction pipe 9 is connected to a discharge port Po of the water pump P, The upper end is connected to a water discharge pipe 10 bent in an elbow shape. Between and between the secondary filter chamber 5 ₁ -2 and the secondary filter chamber 5 ₁ -1 and suction pipe 9 as shown in FIGS. 4 and 5 and the secondary filter chamber 5 ₁ -3, flowing water, respectively Channels 11 ₁ , 11 ₁ are formed, and the outflow ports 8 are respectively opened in these flowing water channels 11 ₁ , 11 ₁ . Also as clearly shown in FIG. 4, the lower portion of the first filter medium holding unit H _1, extends laterally across the secondary filter chamber 5 ₁ 2,5 ₁ -3, wherein the outlet port 8 water collecting route 12 ₁ communicating ... two is formed.

The water pump P accommodated in the cutout hole 4 at the lower corner of the filter medium holder H is adsorbed on the inner surface of the water tank V by a suction cup 15 provided therein. The downstream end of the current waterways 12 _1, suction port Pi of the water pump P is communicated with. Lead wire 1 for supplying current to this water pump P
6 is drawn out through one side of the first filter medium holding unit H _1.

The first filter medium holding unit H₁On one side of
The second filter medium holding unit connected by the connecting means Co described later
Rank H_TwoIs also the first filtration holding unit H₁Has almost the same structure as
In other words, as shown in FIGS.
Front plate 1 formed on_TwoOn the back of the back plate 2_TwoPolymerized together
Joined, top plate 1_TwoTwo suction cups 3 on the top and bottom outside
Each suction cup 3 is detachably attached, and these suction cups 3
2_TwoThrough the notch to detachably attach to the glass surface of the water tank V
Be worn. This second filter medium holding unit H_TwoLong length up and down
Secondary filtration chamber 5 in the form of a square bag_Two-1 is the secondary filtration
Room 5₁-1 to 5 ₁-3 is formed substantially in parallel with
Secondary filtration room 5_TwoEach pebble 6 such as Oiso is sealed in -1
Filled and filled. And the secondary filtration chamber 5_TwoTable of -1
Side, top plate 1_TwoAlso consist of many small holes
Inlets 7 ... are established, and through these inflows 7 ...
The water that has passed through the pulp filter medium F in the water tank V_Two
-1. Also the secondary filtration
Room 5_TwoOutflow with many small holes on each side of -1
The openings 8 are opened, and the secondary filtration chambers 5 are opened._TwoThe water in -1
Each of which flows out of them through outlets 8 ...
You.

[0019] On both sides of the secondary filter chamber 5 ₁ As shown in FIGS. 4 and 5 are respectively water passage 11 _2, 11 ₂ is formed, these flowing water channel 11 _2, 11 _2, the outlet port 8 ... Are respectively opened. Also as clearly shown in FIG. 4, the current in the lower portion of the second filter medium holding unit H _2, which extends laterally across the secondary filter chamber 5 ₂ -1 and communicating said water passage 8 ... two waterway 12 ₂ is formed.

The first filter medium holding unit H ₁ and the second filter medium holding unit H ₂ constituting the filter medium holding body H are connected by connecting means Co so as to be adjustable in their horizontal direction, that is, in the left-right direction.

Next, the specific structure of the connecting means Co will be described mainly with reference to FIGS. 4, 5 and 8 and FIGS. 14 to 19, which show the first and second filter medium holding units H ₁ and H _2. Connected portions 35 formed on one side edge adjacent to each other
₁ , 35 ₂ (FIG. 15), a strip-shaped connecting piece 36 (FIGS. 16 and 17) for integrally connecting them,
5 _1, 35 ₂ are more configuration and strip fastening piece 37 fastened together (Fig. 18, 19) and a connecting piece 36 and. Figure wherein the the connected portion 35 _1, 35 _2, as shown in 15, the connecting hole 38 ₁ of the three pairs at intervals in the vertical direction, 38
₂ are drilled in contrast. A pair of connection holes 38 ₁ ,
38 ₂ includes a circular hole 39 _1, 39 _2, inclined long holes 40 ₁ inclined toward each other downward communicated thereto,
40 _2, and is formed in the shape of a keyhole, and as shown in FIGS.
The three connecting pins 41 corresponding to 8 ₁ and 38 ₂
Are formed integrally in a cantilevered manner through each other, and each connecting pin 41 is in a through hole 43 formed in the connecting piece 37 and can be elastically moved back and forth through an arm 42. Also, flanges 44 and 45 are integrally formed at both ends of each connection pin 41,
The inclined surface 44 ₁ is formed on the back surface of the one flange 44. The three fastening holes 46 are formed corresponding to the coupling hole 38 _1, 38 ₂ of the three pairs of the strip-shaped fastening piece 37 as shown in FIGS. 18 and 19, each of the fastening holes 46, It formed more key hole shape with a long hole 48 communicating with this circular hole 47, inclined wedge surface 46 ₁ is formed on one surface thereof.

Next, referring to FIG.
From the first and second filter medium holding units H₁, H _TwoAnd are connected together
The procedure is described below, as shown in FIG.
First and second filter medium holding units H₁, H_TwoConnected part 35 of₁,
35_TwoAre connected to each other to form a pair of connection holes 38.₁, 3
8_TwoCircular hole 39₁, 39_TwoTo match. Next, FIG.
As shown in (B), the connecting pins 41 of the connecting piece 36 are matched.
Circular hole 39₁, 39_TwoAnd then connect
When the piece 36 is pulled downward (the direction of the arrow a in FIG. 14), the connecting pin
41 is a connecting hole 38₁, 38_TwoInclined oblong hole 40₁, 40
_TwoInto the first and second filter medium holding units H₁, H_TwoLeft and right
While expanding outward (arrows b and b directions in FIG. 14),
Rank H₁, H_TwoAre connected together. Next, as shown in FIG.
The circular holes 47 of the fastening holes 46 of the fastening pieces 37 are
After fitting to the connecting pin 41, as shown in FIG.
Pull the fastening piece 37 downward (in the direction of arrow c in FIG. 14).
For example, the long hole 48 of the fastening hole 46 is engaged with the neck of the connecting pin 41.
The wedge inclined surface 46 of the fastening hole 46₁Is the connecting pin 41
Slope 44 of flange 44₁Engages with the first and second filter media
Unit H₁, H_TwoCan be tied together. And
FIG. 8 shows a longitudinal sectional view of the securing state.

As shown in FIGS. 4 to 6, the filter medium holder H is
First and second filter medium holders H₁, H_TwoTop plate 1₁, 1
_TwoOn the left and right edges of the right side, it stands upright at right angles
Left, right standing edge 1₁−l, 1_Two-R is integrally bent
These standing edges 1 ₁−l, 1_Two-R upper and lower
Are mounted with suction cups 20, respectively.
Is adsorbed on the glass surface of the water tank V. Also shown in FIGS.
First and second filter media holders H₁, H_TwoTop plate 1₁, 1
_TwoThe upper and lower edges are also erected at a substantially right angle toward the front.
Standing, lower standing edge 1₁−u, 1₁-D and 1_Two−u, 1
_Two-D is bent integrally, and the lower standing edge
1₁−d, 1_TwoA suction cup 20 is attached to each -d
These suction cups 20 are adsorbed on the glass surface of the water tank V.
You.

As shown in FIG. 4, communication pipes 14 are provided below the first and second filter medium holding units H ₁ and H _{2 so} as to straddle them.
Is detachably inserted, and the communication pipe 14
The right catchment channels 12 ₁ and 12 ₂ communicate with each other.

As shown in FIGS. 5, 6, and 11, a plurality of insertion tongues 17 are substantially equal to the left and right upright edges 1 ₁ -l and 1 ₂ -r along their longitudinal directions. It is protruding at intervals. . The insertion tongue pieces 17 are formed in a U-shape, and their free end side halves are formed on inclined surfaces 18 which are bent and inclined inward.
8 are respectively inserted into a plurality of slits 19 formed in the elastic filter medium F so as to be freely detachable, as described later in detail.

[0026] Moreover, under the standing edge _{1 1} -u, _{1 1} -d and 1 ₂ -u, 1 ₂ -d to be respectively along their longitudinal direction a plurality of the insertion tongue 17 ... is substantially equal It is protruding at intervals. The insertion tongue pieces 17 are also formed in a U-shape, and their free end halves are formed on inclined surfaces 18 that are bent and inclined inward, and these inclined surfaces 18. Are inserted into a plurality of slits 19 formed in the pulp filter medium F in a detachable manner, respectively, as described later in detail.

The pulp filter medium F is formed to have substantially the same size as one side surface in the water tank V so as to be fully adhered to the opposing inner surface of the water tank V as shown in FIGS. A flat filtering surface 22 that is directly exposed in the water tank V is formed on the front. In addition, as shown in FIG.
A plurality of slits 19 are arranged at intervals on the left, right, upper and lower portions corresponding to the plurality of insertion tongue pieces 17 respectively. The back of the elastic filter medium H faces the front of the filter medium holder H, and the plurality of slits 19 are formed.
Are inserted into the plurality of insertion tongue pieces 17... So that the elastic material F can be assembled to the front surface of the filter material holder H.

By the way, when the plurality of slits 19 are inserted into the plurality of insertion tongue pieces 17, the pulling force of the elastic member F to the left, right, up, and down is directed outward. Can be added, and the operation is described below with reference to FIGS.
The case where the left and right tongue pieces 17 of the filter medium holder H are inserted into the left and right slits 19 of the pulp filter medium F will be described with reference to FIG. Left of F,
The distance L ₂ between the right slits 19 is equal to the filter medium holder H.
Left, Yes and substantially equal to the distance L ₁ between the tip of the right of the insertion tongue 17 and 17, the left respectively the slits 19, 19 as shown in FIG. 12, the right of the insertion tongue 17, 17, the inclined surfaces 1 of the tongue pieces 17, 17
12, the left and right ends of the pulp filter medium F are pulled left and right outward as shown by the arrow t in FIG.
Can be pressed against the glass surface on the side of the water tank V.

Similarly, when the upper and lower slits 19 and 19 are inserted into the upper and lower insertion tongue pieces 17 and 17 respectively, the upper and lower ends of the elastic filter medium F are also inserted. The lower end surface of the pulp filter medium F can be pressed against the glass surface on the lower surface of the water tank V by being pulled upward and downward.

As described above, when the pulp filter medium F is assembled to the filter medium holder H, the left and right end faces Ff and the lower end face Ff of the pulp filter medium F are pressed tightly against the opposing inner and lower surfaces of the water tank V. Thus, no gap is formed between them, and a predetermined tension can be applied to the pulp filter medium F itself to eliminate the slack.

As shown in FIGS. 6 and 7, a punching hole 24 is opened at the lower corner of the elastic material F.
The water pump P is housed therein, and a cover plate 25 is inserted into the punched hole 24 so as to be able to be inserted and removed so as to cover the punched hole 24.

As clearly shown in FIGS. 9 and 10, a border band 26 is connected to the upper edge of the filter medium holder H. This border zone 2
6 is formed by extrusion molding of a hard synthetic resin material, the bullet decubitus medium edging unit 26 ₁ and the subsequent cross-section hooked attachment portion 26 ₂ of the cross section channel-shaped to border across its entire width the upper edge of the F And _On the left and right sides of the edging portion 26 ₁ , suction cups 27 for attaching the edging band 26 to the inner wall surface of the water tank V are attached. The tip of the edging portion 26 ₁ is inserted into a slit 28 formed in the middle of the upper edge of the pulp filter medium F so that its upper edge is kept invisible from the outside.

As shown in FIGS. 9 and 10, a spacer 29 of the same material as the pulp filter medium F is fitted into the upper surface recess of the edging band 26, and the upper surfaces of the spacer 29 and the pulp filter medium F are flush. The appearance is better. FIG.
As shown by the two-dot chain line in FIG.
If another spacer 30 of the same material as that of the pulp filter medium F is loaded between the upper end surfaces of the water tank V as needed, the inner surface of one side of the water tank V is loaded with the pulp filter material vertically and horizontally. , The appearance is very good.

As shown in FIG. 7, an air supply pipe 32 having an airstone 31 attached to a lower end thereof is inserted into the suction pipe 9 as required. If an air pump A as a forced circulation means is connected to the upper end of the air supply pipe 32 to supply pressurized air as shown by a chain line in FIG. 7, the water in the water tank V is replaced with the water pump P. The water can be sucked into the suction pipe 9.

As shown in FIG. 4, a connection port 3 communicating with the water collecting passage 12 is provided below the filter medium holder H as necessary.
3 is opened. Another conventionally known bottom filtration device (not shown) can be connected to the connection port 33.

Next, the order of assembling the filtration device of the present invention in the water tank V will be described.

First, the first and second filter medium holding units H ₁ and H ₂ are integrally connected by the connecting means Co as described above. In this case, they are expanded left and right so as to be stretched toward the facing surface of the water tank V. And the first and second filter medium holding units H
_The filter medium holder H made up of ₁ and H ₂ is fully spread on the opposed inner surface of the water tank V, and is held tightly on one inner surface of the water tank V by the suction cups 3.

Next, the edge band 26 is connected to the upper edge of the filter medium holder H, and this is also brought into close contact with the upper part of the inner side surface of the water tank V by suction cups 27. The water pump P housed in the cutout hole 4 at the lower corner of the filter medium holder H is sucked and held on the inner surface of the water tank V by suction cups 15. This state is shown in FIG.

Next, the back side of the elastic filter medium F is opposed to the front side of the filter medium holder H formed by integrally combining the first and second filter medium holding units H ₁ and H ₂ . A large number of slits 19 formed on all sides are inserted into a large number of insertion tongue pieces 17 standing forward from the four sides of the filter medium holder H. At the time of insertion, the inclined surfaces 18 of the insertion tongue pieces 17 pull the left and right and upper and lower ends of the pulp filter medium F outward in the left and right and up and down directions as described above, and the left and right end faces of the pulp filter medium F Ff,
Ff is pressed against the inner surface facing the water tank V without a gap over its entire length, and the lower end face is pressed against the bottom surface of the water tank V without a gap. Also, insert the slits 28 formed on the upper end of Tamashitone filter medium F in the insertion piece of the border portion 26 ₁ of the edging strip 26 may be coupled to border zone 26 the Tamashitone filter medium F.
Further, a spacer 29 is fitted into the concave portion of the border band 26.

As described above, as shown in FIG.
It can be mounted on the entire inner surface of the water tank V. In this case, a slight dimensional error in the water tank V or the pulp filter medium F can be absorbed by the extension of the pulp filter medium F.
There is no gap between the pulp filter medium F and the pulp filter medium F.

Next, the operation of this filtration device will be described. If the water pump P is driven now, a suction force is generated in the filter medium holder H, so that the unpurified water in the water tank V is removed as shown in FIGS.
As shown by the arrow A, the filter media F passes through the inside from the front surface thereof, and after being primarily filtered, passes through a number of inlets 7. 5
₁ -1～5 ₁ -3, and flushed 5 ₂ -1 binary, after being filtered secondarily through the pebble six groups to be sealed therein, the arrow B the outlet 8 ... as Figure 4 As shown in the drawing, the water flows downward through the plurality of water passages 11 ₁ and 11 ₂ , and further merges with the water collection passages 12 ₁ and 12 ₂ and is sucked into the water pump P as shown by an arrow C in FIG. Purified water discharged from the water pump P rises in the suction pipe 9 as shown by arrow d in FIG.
The water is discharged into the water tank V. As described above, the water stored in the water tank V can be forcibly circulated in the water tank V after being finely filtered by the elastic filter medium F and the group of pebbles 6.

In the water tank V, since the filtering surface 22 of the flexible elastic filter medium F is directly exposed in the water tank V, the water tank V
There is no fear that the ornamental fish inside will be damaged, and microorganisms such as rotifers and daphnia will adhere to and propagate on the filtration surface 22 that is directly exposed in the aquarium. And the clogging of the pulp filter medium F is also less likely to occur.

The pulp filter medium F spreads over the entire surface of the water tank V so that there is no gap between the end face Ff of the pulp filter medium F and the inner surface of the water tank. There is no worry of being caught between the water tank V.

In the case of a conventional filter in which a water suction port is opened in a hard filtration case, fry and small fish are stuck to the suction port and cannot move. However, in this embodiment, since no filtration case is provided, this is not possible. There is no such thing.

If an air pump A is connected to the upper end of the air feed pipe 32 as shown by a dashed line in FIG. 7 instead of the water pump P, the pressurized air from the air feed pipe 32 is sent from the air feed pipe 32 to the airstone 31. Through the suction pipe 9, so that the water in the water tank V can be sucked into the suction pipe 9 by the ascending airflow, and the stored water can be purified as in the case of the water pump P described above. Can be.

FIG. 20 shows a second embodiment of the present invention. In this embodiment, a filter device is assembled on the back of the water tank V, and three modularized _first , _second , and _third filter medium holding units H ₁ , H ₂ , and H ₃ are connected by two sets of connecting means Co. The filter medium holder H is integrally connected to the filter medium holder H, and the elastic member F is attached to the front surface of the filter medium holder H. It is needless to say that the same function and effect as those of the first embodiment can be obtained.

Although the embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and various embodiments are possible within the scope of the present invention. For example, four or more filter medium holding units can be continuously connected by a plurality of connection means. Further, in the above embodiment, the filtering device is mounted on the side surface in the water tank, but it may be mounted on the bottom surface of the water tank. Further, in the above-described embodiment, the secondary filtration chamber is formed in the filter medium holder, but the secondary filtration chamber may not be formed therein, in which case water is filtered only by the elastic filter medium.

[0048]

As described above, according to the first aspect of the present invention, a filter medium holder detachably attached to one inner surface of a water tank, and a pulp filter medium detachably held by the filter medium holder. And a forced reflux device for forcibly refluxing the stored water in the water tank into the water tank via the elastic filter medium and the filter medium holder, wherein the filter medium holder is a plurality of filter medium holding units that are modularized. And connecting means for connecting the filter medium holding units so as to be adjustable in their width direction. The left and right end faces of the elastic body are closely contacted with the opposing inner surfaces of the aquarium and are attached to the surface thereof. It is composed of a single elastic body with a filtering surface that directly contacts the water in the water tank. By connecting the plurality of filter media units with connecting means, the size of the water tank or the width, depth, etc. of the water tank can be set. One mounting surface in water tank with different width A simple, easily filtration device can attach.

According to a second aspect of the present invention, in addition to the first aspect, the connecting means includes a connected portion formed on each of two adjacent filter medium holding units, While the unit is expanded outward in the width direction, a connecting piece for connecting the connected portions and a fastening piece for integrally fastening and fixing the connecting piece to the filter medium holding unit, so that a plurality of filter medium holding units are provided. The filter medium holder can be firmly attached to the entire surface of the water tank, and its connection is not loosened even after long-term use.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a filtration device of the present invention is installed in a water tank.

FIG. 2 is a front view of the filtration device taken along line 2-2 of FIG. 1;

FIG. 3 is a top view of the filtration device taken along line 3 of FIG. 2;

FIG. 4 is a front view of the filtering device from which pulp filter media is removed.

FIG. 5 is a cross-sectional view taken along line 5-5 of FIGS.

FIG. 6 is a cross-sectional view taken along line 6-6 in FIGS.

FIG. 7 is a longitudinal sectional view taken along the line 7-7 in FIGS.

FIG. 8 is a longitudinal sectional view taken along line 8-8 in FIGS.

FIG. 9 is a longitudinal sectional view taken along line 9-9 in FIG. 2;

FIG. 10 is a longitudinal sectional view taken along line 10-10 of FIGS.

FIG. 11 is a longitudinal sectional view taken along the line 11-11 in FIGS.

FIG. 12 is a cross-sectional view taken along line 12-12 of FIGS.

FIG. 13 is the same cross-sectional view as FIG. 12 showing a state before assembling the filter medium holding body and the pulp filter medium.

FIG. 14 is a front view of the connecting means, showing the connected state of the filter medium holding units.

FIG. 15 is a front view of a connected portion of the first and second filter medium holding units.

FIG. 16 is a front view of a connecting piece.

FIG. 17 is a longitudinal sectional side view of a connecting piece.

FIG. 18 is a front view of a fastening piece.

FIG. 19 is a longitudinal sectional view of a fastening piece.

FIG. 20 shows another embodiment of the present invention, and is a front view of a water tank containing a filtering device.

[Explanation of symbols]

22 Filtering surface 35 ₁ Connected piece 35 ₂ Cooperated piece 36 Connecting piece 37 the fastening piece Co · · · · · · · connection means F ········ Tamashitone medium H ········ medium holder H ₁ · · · · · · · first filter medium holding Unit H ₂ ······ First filter medium holding unit P ······· Water pump (forced circulation device) V ······ Water tank

Claims (2)

(57) [Claims] 1. A filtering device, which is detachably attached to substantially the entire inner wall surface of a water tank (V) and purifies stored water in the water tank (V), the filter device comprising: The filter medium holder (H) detachably attached to the inner side of the side, the elastic filter medium (F) detachably held by the filter medium holder (H), and the water stored in the water tank (V) are combined with the elastic body. A forced recirculation device (P) for forcibly refluxing the water into the water tank (V) via the pressure filter medium (F) and the filter medium holder (H), wherein the filter medium holder (H) is a plurality of modularized Filter media holding units (H ₁ , H ₂ , H ₃ )
A connecting means (Co) for connecting the filter medium holding units (H ₁ , H ₂ , H ₃ ) so as to be adjustable in the width direction thereof, and the elastic filter medium (F) is provided at both left and right ends. A filtering device, characterized in that the filtering device has a surface closely contacted with an opposing inner surface of the water tank (V) and has a filtering surface (22) on its surface that directly contacts water in the water tank (V). 2. The method according to claim 1, wherein the connecting means (Co) includes two adjacent members.
Filter media holding unit (H ₁, H_TwoH_Two, H_Three) To each
The connected portion to be formed (35₁, 35_Two) And the filter medium
Holding unit (H₁, H_TwoH_Two, H_Three) Is expanded outward in the width direction
While the connected portion (35₁, 35_Two) To connect
The connecting piece (36) and the connecting piece (36) are used as a filter medium holding unit.
(H₁, H_TwoH_Two, H_Three) Tightening to secure together
The filtering device according to claim 1, comprising a piece (37).