JPH06141731A - Filter - Google Patents

Abstract

PURPOSE:To provide a filter installed in a basin for aquarium fish such as goldfish or tropical fish, ensuring aquarium fish not to be sandwiched between the filter and the wall surface of the basin or not to be injured due to their collision against the filter and/or the wall surface. CONSTITUTION:This filter provided in a basin V is made up of a filter medium holder H adhered to one of the inner surfaces of the basin and an elastic filter medium F detachably fitted to this holder H. For the elastic filter medium F, its filter surface is directly exposed to the inside of the basin V and at least both left and right edge faces Ff firmly come into contact with the counter inner surface of the basin V.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, the above-mentioned filtering device is roughly classified into an internal filtering device provided inside a water tank and an external filtering device provided outside the water tank. As an internal filtering device, for example, Japanese Utility Model Publication No. 58-43937. It is disclosed in Japanese Patent Publication No. 60-7932.

[0003]

By the way, in the internal type filtering device, since the filtering device is provided in the water tank in a submerged state and the water is circulated and filtered in the water tank, the filtering efficiency is good, and the location outside the water tank is good. However, there is an advantage that the appearance is good, but since the filtration device is installed in the water tank ,. Ornamental fish such as goldfish and tropical fish may hit the rigid filtration case of the filtration device and be damaged.

.. Fry and small fish may become trapped between the walls of the filtration device and the aquarium, or in the gaps between the filtration devices, making them unable to move, eventually leading to death.

.. Fry and small fish may get stuck in the water intake opening in the rigid filtration case and become immobile, eventually leading to death.

[0006] Since the filter medium is stored in the filter case, the fish cannot eat the live bait such as ringworm that adheres to and propagates on the filter medium, which causes clogging of the filter medium, and further cleaning and replacement of the filter medium. Maintenance is difficult.

[0007]. Aerobic microorganisms hardly propagate on the filter medium, and the purification action of organic water by the microorganisms is insufficient.

[0008] As a whole, the number of parts increases and the cost increases. There are issues such as.

The present invention has been made in view of the above circumstances, and the conventional filter case can be omitted so that the filter medium itself can be attached to one inner surface of the water tank without a gap and the filter surface of the filter medium can be directly attached. It is an object of the present invention to provide a novel filtration device having a simple structure, which is exposed in a water tank so as to solve all the above-mentioned conventional problems.

[0010]

In order to achieve the above-mentioned object, the first feature of the present invention is a filtration device attached to an inner wall surface of a water tank for purifying stored water in the water tank. A filter medium holder that is removably attached in close contact with the inner surface of one side of the water tank, and is removably held by the filter medium holder, and at least the left and right side edge surfaces thereof are in close contact with the opposing inner surface of the water tank over its entire length. And the surface of the tank, which forms a filtration surface that directly contacts the water in the water tank, and the stored water in the water tank is forced through the water passage formed in the tank and the filter material holder to force the inside of the water tank. It is to be provided with a forced circulation means for circulating.

A second feature of the present invention is that
In addition to the first feature, at least left and right opposite ends of the filter medium holder have left and right insertion tongue pieces that have inclined surfaces that stand upright toward the bullet-in filter medium and incline toward each other inward. And the left and right slits, into which the left and right insertion tongues can be inserted in a removable manner, are formed at both left and right ends of the surface of the bullet filter medium facing the filter medium holder. The plug-in tongue is adapted to apply an outward pulling force to the elastic filter material.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment 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 device of the present invention is installed in a water tank, FIG. 2 is a front view of the filtration device taken along the line 2 in FIG. 1, and FIG. 3 is a line 3 in FIG. Top view of the visual filtering device,
FIG. 4 is a front view of the filtration device with the bullet-and-pump filter material removed.

The filter device comprises a filter medium holder H and a bullet-and-socket filter medium F detachably retained by the filter medium holder. The filter medium holder H has a quadrangular plate shape so as to be in close contact with the inner surface of one side of the water tank V, and is made of a hard synthetic resin material. The bullet filter medium F is held by the filter medium holder H. The both end surfaces and the lower end surface are formed in a rectangular plate shape so as to be closely contacted with the inner surface and the lower surface of the water tank V facing each other without a gap, and are made of a porous sponge body such as polyurethane.

FIG. 5 is a cross sectional view taken along line 5-5 of FIG.
6 is a cross-sectional view taken along the line 6-6 of FIG. 2, and FIG.
7 is a vertical sectional view taken along line 7-7, FIG. 8 is a vertical sectional view taken along line 8-8 of FIG. 2, FIG. 9 is a vertical sectional view taken along line 9-9 of FIG. 2, and FIG. 2 is a vertical sectional view taken along line 10-10 of 2.

Next, referring to FIGS. 1 to 4, the concrete structures of the filter medium holder H and the elastic bag filter medium F will be described with reference to FIGS.

As shown in FIGS. 5 and 6, the filter medium holder H formed in a quadrangular plate shape has a front plate 1 formed in an uneven cross section.
The back plate 2 is integrally polymer-bonded to the back surface of the front plate, and four suction cups 3 are detachably attached to the four corners of the front plate 1. These suction cups 3 pass through the notches of the back plate 2 and the water tank. It is removably adsorbed to the glass surface on one side of the V, whereby the filter medium holder H is detachably adhered to the inner surface of the one side of the water tank V. Further, at one corner on the lower side of the filter medium holder H, a notch hole 4 for accommodating a water pump P as a forced circulation means.
Are formed.

As shown in FIGS. 4 to 6, the inside of the filter medium holder H is
In the middle part, there are three bag-shaped
First to third secondary filtration chamber 5₁~ 5₃Are formed substantially parallel to each other
And further along the one edge of the filter medium holder H (left edge of FIG. 4).
That is, the first to third secondary filtration chambers 5₁~ 5₃Parallel to it
4th secondary filtration chamber 5_FourAre formed and they are
1-4 secondary filtration chamber 5₁~ 5_FourInside each is small, such as Oiso
The stone 6 is enclosed and filled. And these 1st-4th
Next filtration room 5₁~ 5_FourOn the front side of the board
The inflow port 7 consisting of many small holes is opened,
Through the inlets 7 ...
The water that has passed through the material F is the first to fourth secondary filtration chambers 5 ₁~ 5_FourInside
It is designed to flow in respectively. In addition, the first to the second
Next filtration room 5₁~ 5_FourOn each side of the
., The outlets 8 ...₁~ 5_FourWithin
Water flows through the outlets 8 ...
It

As shown in FIG. 7, the first secondary filtration chamber 5
₁ and the second between the secondary filter chamber 5 ₂ suction pipe 9 of the water is provided in the vertical direction, the lower end of the suction pipe 9 is connected to the discharge port Po of the water pump P, and whose upper end It is connected to a water discharge pipe 10 that bends in an elbow shape. Between each of the first to third secondary filtration chamber 5 ₁ to 5 _3, between the first secondary filter chamber 5 ₁ the outer and fourth secondary filtration chamber 5 ₄ and suction pipe 9, respectively Flowing water channels 11 _{1 to} 11 ₄ are formed in parallel with the _first to _fourth secondary filtration chambers 5 _{1 to} 5 ₄ and these flowing water channels 11 ₁ to 11 ₄
11 _4, first to fourth secondary filtration chamber 5 ₁ to 5 ₄ outlets 8 ...
Is opened.

Further, as clearly shown in FIG. 4, a water collecting passage 12 extending in the lateral direction is formed in the lower portion of the filter medium holder H so as to cross the _{first to third} secondary filtration chambers 51 to 53. , and more below the fourth secondary filtration chamber 5 _4, wherein the water passage 11
An outlet passage 13 is formed which connects ₄ to the water collection passage 12.

A water pump P is housed in the cutout hole 4 at the lower corner of the filter medium holder H, and the water pump P is adsorbed to the inner surface of the water tank V by a suction cup 15 provided therein. A suction port Pi of the water pump P communicates with a downstream end of the water collection path 12. According to the drive of the water pump P,
The filtered purified water flowing through the _first to _fourth flowing water channels 11 _{1 to} 11 ₄ passes through the outlet passage 13 and the water collecting passage 12, and the suction port Pi.
The water is sucked into the water pump P, and the pressurized water from the water pump P passes through the suction pipe 9 and is discharged into the water tank V from the water discharge pipe 10. The lead wire 16 for supplying driving power to the water pump P is drawn out to the outside through one side of the filter medium holder H.

As shown in FIGS. 6 to 10, the left side, the right side edge and the upper and lower edges of the front plate 1 constituting the main part of the filter medium holder H are erected substantially at right angles to the front surface thereof. The right upright edges 11 and 1r and the upper and lower upright edges 1u and 1d are integrally bent, and these upright edges 1l, 1r, 1u and 1 are formed.
On d, a plurality of insertion tongues 17 ... Are provided so as to protrude toward the front at substantially equal intervals along their longitudinal direction. The insertion tongues 17 ... Are formed in a U-shape, and their free end side half portions are formed into inclined surfaces 18 ... Which are bent and inclined toward the inside, and these inclined surfaces 18 ... As will be described later in detail, the plurality of slits 19 ... Formed in the bullet filter material F are respectively inserted into and removed from each other. Suction cups 20 ... Are attached to the upper and lower portions of the left and right upright edges 1l and 1r and to the left and right of the lower upright edge 1d, and these suction cups 20 ... Are adsorbed to the side wall surface and the bottom surface of the water tank V.

As shown in FIG. 1, the shell-and-bottom filter material F is formed to have a size substantially equal to the size of one side surface of the water tank V so as to be in close contact with the inner surface of one side of the water tank V. A flat filtration surface 22 that is directly exposed to the inside of the water tank V is formed therein. Further, on the back surface of the bullet filter medium F, a plurality of slits 19 are arranged at intervals on the left, right, upper and lower portions respectively corresponding to the plurality of insertion tongues 17 ... There is. The back surface of the bullet-and-humid filter medium H faces the front surface of the filter-material holder H, and the plurality of slits 19 ... Are inserted into the plurality of insertion tongues 17 ... Can be mounted on the front.

By the way, when the plurality of slits 19 ... Are inserted into the plurality of insertion tongues 17 ..., a pulling force outwards to the left, right and up, and down of the bullet-and-filter material F. Can be added, and the action will be described below with reference to FIGS.
Referring to FIG. 11, the case where the left and right insertion tongues 17 of the filter medium holder H are inserted into the left and right slits 19 of the bullet filter medium F will be described. As shown in FIG. Left of F,
The distance L ₂ between the right slits 19 is 19
The left and right insertion tongues 17, 17 have a distance L ₁ between the tips of the insertion tongues 17, and these slits 19 and 19 are inserted into the left and right insertion tongues 17 and 17, respectively, as shown in FIG. When they are inserted into the slide 17, the inclined surfaces 1 of the insert tongues 17, 17
The left and right ends of the bullet filter medium F are pulled outward by 8 and 18 to the left and right as shown by an arrow t in FIG.
Both left and right end faces Ff, Ff of the above can be pressed against the glass surface of the side surface of the water tank V.

Similarly, when the upper and lower slits 19 and 19 are inserted into the upper and lower insertion tongues 17 and 17, respectively, both upper and lower end portions of the bullet and filter media F are inserted. The upper and lower sides can be pulled outward to press the lower end surface of the bullet filter F to the glass surface of the lower surface of the water tank V.

When the elastic filter medium F is assembled to the filter medium holder H as described above, the left and right end faces Ff and the lower end faces Ff of the elastic filter medium F are densely pressed against the inner surface and the lower surface of the water tank V facing each other. Therefore, no gap is formed between them, and a predetermined tension is applied to the elastic material F to eliminate the slack.

A punching hole 24 is opened in a lower corner of the bullet-and-filter material F, the water pump P is accommodated in the punching hole 24, and a lid plate 25 can be freely inserted into and removed from the punching hole 24. To block the punching hole 24.

As clearly shown in FIG. 9, an edging band 26 is connected to the upper edge of the filter medium holder H. The edging band 26 is formed by extrusion molding of a hard synthetic resin material, and the edging portion 26 ₁ having a channel-shaped cross section and the subsequent hook-shaped mounting of the cross-section are formed so as to rim the upper edge of the bullet filtering material F over its entire width. Part 26 ₂ . Suckers 27 for adsorbing the edging strip 26 to the inner wall surface of the water tank V are provided on the left and right of the edging portion 26 _1.
Is installed. The tip of the edging portion 26 ₁ is inserted into a slit 28 formed in the middle portion of the upper edge of the bullet filter material F so that the upper edge portion is shaped so that it cannot be seen from the outside.

A spacer 29, which is made of the same material as the bullet filtering material F, is fitted in the concave portion on the upper surface of the edging band 26, and the upper surfaces of the spacer 29 and the bullet filtering material F are flush with each other to improve the appearance. I am doing it. Further, as shown by a two-dot chain line in FIGS. 8 and 9, if another spacer 30 made of the same material as the bullet-and-pump filter material F is loaded between the upper edge of the tank V and the upper end surface of the bullet-and-pump filter material F, The inner surface of one side is fully loaded with the upper and lower parts and the left and right parts of the inner part, so that the appearance is very good.

As shown in FIG. 7, an air feed pipe 32 having an air stone 31 at its lower end is inserted into the suction pipe 9 as needed. Then, as shown by a chain line in FIG. 7, an air pump A as a forced circulation means is connected to the upper end of the air inlet pipe 32 to supply pressurized air, so that the water in the water tank V is replaced by the water pump P. It can be sucked up into the suction pipe 9.

Further, as shown in FIG. 4, a connection port 3 communicating with the water collecting channel 12 is formed in the lower portion of the filter medium holder H, if necessary.
3 is opened. It is possible to connect another conventionally known bottom filtration device (not shown) to the connection port 33.

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

First, the filter medium holder H, to which the water pump P is assembled, is brought into close contact with one inner side surface of the water tank V by the suction cups 3 ..., and their left, right and lower rising edges 11, 1, 1 and 1d are sucked by the water cup 20 ... Stick to the left, right and bottom of the V.

Next, the edging 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 the 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 the suction cups 15. This state is shown in FIG.

Next, the above-mentioned bullet-and-socket filter material F, the back side of which is a filter material
The holding body H was faced to the front surface and formed on all four sides of the back surface.
A large number of slits 19 ... Are provided in front of the four sides of the filter medium holder H.
Insert the tongues 17 ... This difference
At the time of insertion, the inclined surfaces 18 ... of the insertion tongues 17 ... are as described above.
To the left and right and the upper and lower parts
By pulling outward in the opposite direction,
Over the inner surfaces of the water tank V facing each other without gaps
Then, its lower end surface is pressed against the bottom surface of the water tank V without any gap. Also
The slit 28 formed at the upper end of the bullet-and-filter material F is provided with the edging strip 2
Border 26 of 6 ₁If you insert it into the insert piece,
It can be combined with the bullet filter material F. Further border strip 26
A spacer 29 is fitted in the concave portion of. Filtered by the above
As shown in FIG. 1, the device is mounted on the inner surface of the water tank V to the fullest extent.
You can In this case, the water tank V
Some dimensional errors may be absorbed by the expansion of the above-mentioned elastic material F.
It can be stored, and there is a gap between the water tank V and the ammunition filter material F.
Moreover, the bullet-and-humid part filter medium F does not loosen.

Next, the operation of this filtering device will be explained. If the water pump P is driven now, a suction force is generated in the filter medium holding member H, so that the unpurified water in the water tank V is shown in FIGS.
As shown by the arrow a, after passing through the inside from the front surface of the bullet filter material F and being primarily filtered by it, it passes through a large number of inlets 7 ... After being divided into secondary filtration chambers 5 _{1 to} 5 ₄ and secondarily filtered through a group of pebbles 6 enclosed therein, the secondary filtration chambers 5 _{1 to} 5 ₄ pass through outlets 8 ... As shown by an arrow b in FIG. Flows downwards through the flow channels 11 _{1 to} 11 ₄ and, as shown by an arrow c in the figure, the flow channel 1
It merges with 2 and is sucked into the water pump P. Purified water discharged from the water pump P rises in the suction pipe 9 as shown by an arrow d in the figure and is discharged into the water tank V from the water discharge pipe 10.
As described above, the stored water in the water tank V can be forcibly circulated in the water tank V after being filtered neatly by the bullet filter F and the group of pebbles 6.

Thus, in the water tank V, since the filtering surface 22 of the flexible elastic material F is directly exposed in the water tank V, the water tank V
There is no concern that the ornamental fish inside will be damaged, and microorganisms such as ringworms and daphnia will attach and propagate on the filtration surface 22 that is directly exposed in the aquarium, but the fish will eat the microorganisms directly as raw food. This also makes it difficult for the filter medium F to be clogged.

Further, since the filter medium F spreads over the entire surface in the water tank V and there is no gap between the end face Ff of the bullet-in filter medium F and the inner surface of the water tank V, a small ornamental fish can be used between the filter medium H and the water tank V. There is no worry of being caught in.

In the conventional one in which the water suction port is opened in a more rigid filtration case, fry and small fish are stuck to the suction port and cannot move, but this embodiment has no filtration case. There is no such thing.

If, instead of the water pump P, the air pump A is connected to the upper end of the air inlet pipe 32 as shown by the chain line in FIG. 7, the pressurized air from there is supplied from the air inlet pipe 32 to the air stone 31. Through the suction pipe 9 and the ascending air current makes it possible to suck up the water in the water tank V into the suction pipe 9 and purify the stored water as in the case of the water pump P described above. You can

Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various embodiments are possible within the scope of the present invention. For example, when pebbles such as Oiso are laid in the water tank, only the left and right edges of the bullet filter material may be brought into close contact with the inner surface of the water tank. This is because the lower edge of the bullet filter material can be covered with the pebbles. Further, although the case where the filtering device is attached to the side surface of the water tank has been described in the above embodiment, it may be attached to the bottom surface of the water tank. Further, in the above-mentioned embodiment, the secondary filtration chamber is formed in the filter medium holder, but it is not necessary to form the secondary filtration chamber in this case, in which case water is filtered only by the bullet filter medium.

[0042]

As described above, according to the first feature of the present invention, a filter medium holder that is removably attached in close contact with the inner surface of one side of a water tank, and is removably retained by this filter medium holder,
The at least left and right side edge surfaces are intimately contacted with the opposing inner surface of the water tank over the entire length thereof, and the surface thereof forms a filtration surface which comes into direct contact with the water in the water tank, and the stored water in the water tank. Since a forced circulation means for forcibly circulating the inside of the water tank through the flowing water channel formed in the filter medium and the filter medium holder is provided, it is possible to load one surface of the water tank with the ammunition filter medium without a gap, and further The filtration surface of the filter medium can be directly exposed in the water tank, and small ornamental fish are caught in the gap between the solid filtration case and the aquarium, or the ornamental fish hit the solid filtration case and are damaged, or the water opened in the filtration case It is possible to overcome the drawbacks of the conventional filtration device of this kind, such as fry and small fish stuck to the suction port of the device and not being able to move, and the wide filtration surface made of bullet wrapping material directly contacts the water in the aquarium. Then, by promoting the breeding of aerobic microorganisms such as ringworm and Daphnia on a wide filtration surface and using this microorganism as a live feed for ornamental fish, it is possible to significantly reduce the clogging of the filter medium and the aerobic property. Microorganisms contribute to the organic purifying action of water, which makes it possible to produce optimum water for ornamental fish.

Further, since this filtration device does not have a filtration case, it is easy to carry out maintenance such as cleaning and replacement of the elastic material.

Further, since this filtering device requires a small number of parts, the manufacturing cost thereof can be greatly reduced.

The second feature of the present invention is that
In addition to the first feature, at least left and right opposite ends of the filter medium holding body are provided with left and right insertion tongues that have inclined surfaces that stand up toward the bullet-in filter medium and that are inclined inward toward each other. Left and right slits formed integrally with each other are formed at the left and right ends of the surface of the bullet filter medium facing the filter medium holder, and the left and right insertion tongues can be inserted and removed freely. Since the insert tongue is designed to apply an outward pulling force to the bullet filter material, the filter device is assembled only by inserting the slit of the bullet filter material into the insert tongue piece of the filter medium holder. Therefore, anyone can easily and easily assemble the filtration device accurately.

[Brief description of drawings]

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

2 is a front view of the filtering device taken along the line 2-2 of FIG.

FIG. 3 is a top view of the filtering device taken along the line 3 of FIG.

FIG. 4 is a front view of the filtering device with the ammunition filter material removed.

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

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

7 is a vertical cross-sectional view taken along line 7-7 of FIG.

FIG. 8 is a vertical sectional view taken along line 8-8 of FIG.

9 is a vertical cross-sectional view taken along the line 9-9 of FIG.

10 is a vertical cross-sectional view taken along the line 10-10 of FIG.

FIG. 11 is a cross-sectional view showing a state before inserting the bullet-and-socket filter medium into the filter medium holder.

FIG. 12 is a cross-sectional view showing the state after inserting the bullet-in filter material into the filter material holder.

[Explanation of symbols]

11 _{1 to} 11 ₄ ··· Flow channel 17 ························ Incline 22 ··················· Slit F ・ ・ ・ ・ ・ ・ Ambushment filter material H ・ ・ ・ ・ ・ ・ Filter material holder Ff ・ ・ ・ ・ ・ ・ End face of filter material holder P ・ ・ ・ ・ ・ ・ As forced circulation means Water pump V ・ ・ ・ ・ ・ ・ Water tank

Claims (2)

[Claims] 1. A filtration device, which is attached to an inner wall surface of a water tank (V) and purifies stored water in the water tank (V), the filter apparatus being in close contact with an inner surface of one side of the water tank (V). A filter medium holder (H) that can be freely attached, and a filter medium holder (H) that is detachably held and that has at least left and right side edge surfaces (F).
f), which is in close contact with the opposing inner surfaces of the water tank (V) over its entire length, and whose surface forms a filtration surface (22) that directly contacts the water in the water tank (V); Forced circulation means for forcibly circulating the stored water in V) in the water tank (V) through the flowing water channels (11 _{1 to} 11 ₄ ) formed in the bullet-filter material (F) and the filter material holder (H). P) and a filtering device. 2. A filter material holder (H) is erected toward at least the left and right opposite ends of the filter material holder (H) toward the bullet-in filter material (F).
Further, right and left insertion tongues (17) each having an inclined surface (18) inclined inward toward each other are integrally projectingly provided, and the shell bag filter material (F) and the filter material holder (H) Left and right ends of the facing surface are formed with left and right slits (19) into which the left and right insertion tongues (17) can be freely inserted and removed, and the left and right insertion tongues (17) include the bullet filter (F). ) Is applied with an outward tensile force, the filtering device according to the above item 1.