JPH033182Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is used as a bottom filter in a fish tank, especially as a bottom filter that is placed on the bottom of the tank or constitutes the bottom plate of the tank itself. Regarding the bottom filter.

(Prior art) When a group of fish is raised in a fixed amount of water in an aquarium,
The water in the aquarium becomes gradually contaminated by the excrement secreted by the farmed fish and the decayed food, and it begins to contain harmful substances that the farmed fish cannot live in. Therefore, in order to maintain the water quality in a condition suitable for fish habitat, aquariums for breeding ornamental fish, etc. have traditionally been equipped with filtration devices, which continuously pump up the water in the aquarium one after another. After the water is purified by physical filtration and biochemical action by passing it through a filter medium or by bringing it into contact with microorganisms, it is returned to the aquarium.

By the way, when performing water filtration in a broad sense as described above, one of the most important things is that in order to maintain good overall water quality in the aquarium, it is necessary to filter the water in the aquarium as a whole. That is, it is important to uniformly pump up the water in the aquarium and pass it through the filtration means without creating so-called dead water parts that come out of the circulation system and become stagnant. However, conventionally, like the most commonly used filter, one or more pumping pipes are simply inserted into the water tank almost to the bottom, and a pump is inserted from the lower end of the pumping pipes into the water tank. The type that pumps water from the inner bottom and sends it to the filtration tank,
The water in the aquarium located far away from the pumping pipe shows little active movement, and as a result, the water quality in this area tends to deteriorate, especially for certain types of fragile fish that are very sensitive to water quality. In this case, there is a great possibility that the plant will die relatively early.

For this reason, a so-called bottom filter, which has a wide area and is used by laying or placing it on the bottom of an aquarium, has been proposed as a further improved filter (for example, in practice). Publication No. 56-48327), which is currently in practical use. In this type of filter, for example, as shown in FIG. 8, a shallow box-shaped filter case 1' with an open bottom and a large number of water absorption holes 6' on the upper surface is placed on the bottom surface of an aquarium B'. The water in the water tank B' is caused to flow into the case 1' through the water suction hole 6' by suction with a water pump 3' provided in a part of the filter case 1', and then pumped up. It is something that Indeed, with this device,
This method is advantageous in that the water in the tank B' can be sucked over a wide range compared to the above-mentioned system in which the water in the tank is simply pumped up using a pumping pipe. The words are
Nevertheless, as shown by the dotted line in Figure 8, a sufficient suction force acts on the portion close to the lift pipe 3' and good circulation occurs, but the suction force decreases as it moves away from the position of the lift pipe 3'. This has the disadvantage that it is difficult to circulate water well because it becomes weak. For this reason, sludge-like filth, sludge, etc. 40 gradually accumulates and accumulates on the bottom surface of the water tank B' in the case 1' in this remote part.
This has led to problems such as the proliferation of bacteria and rot, which can cause deterioration of water quality. Therefore, when such sludge etc. 40 accumulates, cleaning must be carried out to remove it, and this cleaning must of course be carried out after removing the filter case 1'. , tank bottom laying material 31' such as pebbles and sand laid on top of it.
It has to be removed immediately, which makes the cleaning work very troublesome, and there is also the inconvenience that aquatic plants, etc. that have taken root in the tank bottom laying material 31' in the tank are also killed.

(Purpose of the invention) This invention was created in view of the above-mentioned drawbacks, and it is possible to collect water in the aquarium from the entire area of the bottom of the tank, suck it up, and pump it up. To provide a panel-type bottom filter that can filter the water, do not cause sludge, etc. to accumulate or accumulate at the bottom of the tank, and almost eliminate the need for cleaning the inside of the tank as described above. The purpose is to

(Structure of the device) In order to achieve the above-mentioned purpose, this device has a large number of water absorption holes 6 arranged in multiple rows on the upper surface, and each row of holes communicates with each independent branch channel 8. A filtration panel 1 and a header 2 communicating with the flow path 8
and 1 provided connected to a part of the header 2.
or a plurality of suction ports 3, each of the branch channels 8
The cross-sectional area of the passage is set to be smaller than the cross-sectional area of the passage of the header 2, and the filter panel 1 is inclined with respect to the bottom surface of the aquarium, and the panel 2
The header 2 is characterized in that the header 2 is communicated with each of the branch channels 8 at the lower end of the slope.

(Example) This invention will be explained below based on the illustrated example.

As shown in FIGS. 1 and 2, the underwater filter A according to this invention consists of a filtration panel 1, a header 2 with a semicircular or U-shaped cross section, and a substantially L-shaped suction port 3. .

The filter panel 1 consists of an upper plate 4 and a lower plate 5. The top plate 4 has a size so that the tank bottom laying material 31 such as pebbles placed on the top surface cannot pass through.
Furthermore, a plastic plate material having a large number of linear water absorption holes 6 arranged in multiple rows in the width direction is gently bent into a substantially V-shaped cross section to form a rectangular shape in plan view that can be tightly fitted into the inner surface of the breeding tank 7. It was formed. On the other hand, the lower plate 5 is a flat plate made of plastic, and on its upper surface, a narrow branch channel 8 with a rectangular cross section of about 4 mm in depth and about 2 mm in width is formed parallel to the width direction of the upper plate. The holes are formed at the same intervals as the hole rows No. 4. Then, on the back surface of the top plate 4, the two
The filtration panel 1 is constructed by bonding two lower plates 5, 5 in an overlapping manner so that the water absorption holes 6 are aligned with the branch channels 8.

The header 2 is provided on the lower surface side of the bent portion at the center of the panel 1 so as to straddle the lower surfaces of both the lower plates 5, 5. At the bottom of the header 2, a plurality of suction ports 3 are provided at equal intervals in the length direction.
is provided.

In the above embodiment, the filtration panel 1 is shaped so that it has a roughly V-shaped cross section and is gently bent so that the water that enters the branch channel 8 from the water absorption hole 6 can be quickly transferred to the header 2 by the action of gravity. This is to maintain a good water flow in the branch channel 8 at all times and to prevent sludge from accumulating in the branch channel 8. The reason why the header 2 is arranged at the bottom of the center of the filtration panel 1 as in the embodiment is to increase the efficiency of collecting water from each branch channel 8. It may be provided inside the device itself, or it may be provided on one or both sides thereof. Further, it is advantageous to provide a plurality of suction ports 3 as shown in the figure in that a substantially uniform suction effect can be provided over the entire surface of the filter panel 1, but if necessary, one end of the header 2 or One or two may be provided at both ends.

Figures 3 and 4 illustrate specific usage conditions of the filter A, and in Figure 3, B is the water tank body, C is the filter tank, D is the septic tank, and E is the water pump. .

As shown in FIG. 5, the water tank main body B has inside thereof, in addition to the breeding tank 7, left and right water storage tanks 10, 10, and a filter storage chamber 11. The peripheral wall of the aquarium main body B is composed of a front wall 12, left and right side walls 13, 13, and a rear wall 14, and is formed in a horizontally long manner, and transparent plates made of plastic or glass are used for these.

The breeding tank 7 has an inner wall 15, which is an opaque plate made of plastic colored blue to enhance the design effect, for example, in the length direction of the tank main body B and toward the rear wall 14. It is divided into sections. The filter A is fitted into the bottom of the tank 7 and substantially forms the bottom wall of the breeding tank 7. That is, the bottom surface of the tank is closed by welding or adhering the filter panel 1 to the peripheral wall around the filter panel 1 and both ends of the header 2 to prevent water leakage.

The water tanks 10, 10 have the inner wall 15 and the rear wall 1.
4 is partitioned in the width direction using partition plates 16, 16, and the partition plate 16, the side wall 13, the inner wall 15, and the rear wall 14 constitute a peripheral wall, and a bottom plate 17 is formed at the bottom of the peripheral wall. , upper plates 35, 35 are provided at the upper end on which the water pump E is placed.
Half of the suction ports 3 of the suction ports 3,
3, 3 are connected to the bottom plate 17 of one water storage tank 10 via holes 33, 33, 33 by communication pipes 18, 18, 18, and the other half of the suction ports 3 are similarly connected to the bottom plate 17 of the other water storage tank 10. It communicates with the face plate 17. That is, the rearing tank 7 and the water storage tank 10 are in communication via the water absorption hole 6, the branch flow path 8, the header 2, the suction port 3, the communication pipe 18, and the hole 33.

The filter storage chamber 11 has a peripheral wall composed of an inner wall 15, left and right partition plates 16, 16, and a rear wall 14,
At the bottom of the peripheral wall, a diagonal bottom plate 19 is inclined toward the rearing tank 7 side, and the diagonal bottom plate 19 and the inner wall 15 are joined so that the joint part thereof is above the joint part of the filter panel 1 and the inner wall 15. There is. A large number of communication holes 20 are formed in the lower part of the inner wall 15 constituting the storage chamber 11 .

As shown in FIG. 6, the filtration tank C comprises a horizontally elongated filtration frame 21 that fits loosely into the storage chamber 11, and a partition plate 22 that crosses the width direction is provided halfway inside the filtration tank C at one end. 23 and a space chamber 24 are partitioned in the length direction. The filtration chamber 23 has a bottom, and a bottom plate 27 thereof has a large number of filtration holes 25 formed therein. The partition plate 22 is formed to have a lower height than the filter frame 21.

As shown in FIG. 7, the septic tank D includes a septic frame 34 having the same cross-sectional shape as the filtration frame 21, and a large number of holes 2.
6 is formed deeper than the filtration tank C, and a handle 28 extending in the width direction is provided inside the filtration tank C for easy removal.

When assembling and using, the septic tank D is first fitted into the storage chamber 11 of the water tank B, as shown in FIGS. 3 and 4. Next, fit the filter tank C,
The water pump E is placed on the upper plates 35, 35 of the water tank 10, and its water suction pipe 29 is inserted into the water tank 10 so that the water in the water tank 10 can be sucked, and the pumped water is passed through the filter tank C. The drain pipe 30 of the pump E is arranged so that it can flow into the filtration chamber 23 of the pump E.

Furthermore, on the bottom surface of the rearing tank 7, that is, on the filter panel 1, a tank bottom laying material 31 such as sand, pebbles, etc.
At the same time, in the filtration tank C and the septic tank D,
Appropriate filter media 32 corresponding to each filtration purpose
is filled.

(Function) With such a configuration, by filling the rearing tank 7 with water, the water storage tank 10 and the septic tank D are also filled with water. Then, when the water pump E is operated, the water in the water tank 10 is pumped up to the water suction pipe 29.
from the drain pipe 30 to the filtration chamber 2 of the filtration tank C.
It will be discharged within 3 days. Therefore, the water level in the water storage tank 10 is lower than the water level in the rearing tank 7, and due to the difference in water pressure, the wastewater that had accumulated on the filtration panel 1 flows into each branch channel 8 through the water absorption hole 6 of the panel 1. The wastewater flowing into each branch flow path 8 joins the header 2 and is sucked out from the suction port 3. The sewage then forcibly flows into the water storage tank 10 through the communication pipe 18.

The sewage pumped up by the water pump E in this way is physically filtered using a filter material 32 such as glass wool filled in the filter chamber 23, and the bottom plate 2
The water flows down into the septic tank D through the filter hole 25 drilled in 7. If the filter material 32 becomes clogged with dirt, it will overflow the partition plate 22 and fill the space chamber 24.
From there, it flows directly into the septic tank D. Then, microorganisms such as chlorella grown in the septic tank D perform a biochemical purification action. The septic tank D is formed deeper than the filtration tank C, and has a filter material 32.
Since the septic tank D is filled with water, the flow rate of water in the septic tank D is quite slow, allowing sufficient contact time for microorganisms and the like. In this way, it is thoroughly purified,
The purified water is returned to the breeding tank 7 through the hole 26 in the bottom plate 37 and the communication hole 20 in the inner wall 15. By repeating this, the water in the breeding tank 7 is always kept clean.

(Effect of the invention) The bottom filter A according to this invention is placed on the bottom of an aquarium or used as a bottom plate of the aquarium, and has a large number of water absorption holes 6 on the top surface of the filtration panel 1.
Therefore, the filth and sewage accumulated on the bottom of the aquarium can be sucked from the entire surface of the filter panel 1. Moreover, each independent branch flow path 8
Since the passage cross-sectional area of the header 2 is set smaller than the passage cross-sectional area of the header 2, the flow rate of water passing through each branch passage 8 becomes faster even if pumps with the same pumping capacity are used. Since the water from each branch channel 8 joins and flows intensively, the dirt in the water flows out with the water vigorously and does not stay in the branch channel 8 and the header 2.

In addition, since the filter panel 1 is inclined with respect to the bottom surface of the aquarium, and the header 2 is communicated with the branch channel 8 at the inclined lower end of the panel 1,
In addition to the suction action by the header 2, the water in all the branch channels 8 is quickly flowed down in the direction of the header due to the action of gravity, and sufficient water absorption capacity is exerted even at the water intake port on the tip side of the channel. .

Therefore, sufficient water absorption capacity is exhibited over the entire surface of the filtration panel 1, and the water flow in all the branch channels 8 and the header 2 is always maintained at a good level, so that sludge and the like are not deposited inside them. There are no inconveniences.

In this way, filth and dirt are deposited on the bottom of the aquarium and in the filter A.
The water in the aquarium can be circulated throughout without sewage stagnation, making it possible to keep the aquarium clean at all times. There is no inconvenience such as peeling.

Furthermore, as mentioned above, since dirt and the like do not remain in the branch channel 8 and header 2 of the bottom filter A, there is no need to clean the bottom filter A. Therefore,
Unlike conventional products, there is no need to remove pebbles, ornaments, etc. placed on the bottom of the aquarium for cleaning, and there is no risk of killing plants such as aquatic plants that have taken root in the aquarium.

[Brief explanation of the drawing]

Figures 1 to 7 show an embodiment of this invention, in which Figure 1 is a partially cutaway perspective view of the bottom filter, Figure 2 is a sectional view taken along the line - - in Figure 1, and Figure 3 is a partially cutaway perspective view of the bottom filter. 4 is a partially cutaway perspective view of the fish tank equipped with the filter, FIG. 4 is a sectional view taken along the line -- in FIG.
The figure is a partially cutaway perspective view of the water tank body, Figure 6 is a partially cutaway perspective view of the filtration tank, Figure 7 is a partially cutaway perspective view of the septic tank, and Figure 8 is a vertical cross-section of the conventional product. It is a front view. 1... Filter panel, 2... Header, 3... Suction port, 6... Water absorption hole, 8... Branch flow path.

Claims (1)

[Claims for Utility Model Registration] (1) A filtration panel 1 in which a large number of water absorption holes 6 are arranged in multiple rows on the upper surface, and each row of holes is communicated with each independent branch channel 8; Comprising a header 2 communicating with a flow path 8 and one or more suction ports 3 connected to a part of the header 2,
The passage cross-sectional area of each of the branch channels 8 is set to be smaller than the passage cross-sectional area of the header 2, and
Bottom filtration in a fish aquarium, characterized in that the filtration panel 1 is inclined with respect to the bottom surface of the aquarium, and the header 2 is communicated with each of the branch channels 8 at the inclined lower end of the panel 2. vessel. (2) The filtration panel 1 consists of an upper surface plate 4 having a large number of water absorption holes 6, and one or more lower surface plates 5 having branch channels 8 provided in parallel on the upper surface, and the above-mentioned upper and lower surfaces A bottom filter for a fish aquarium according to claim 1, wherein the plates 4 and 5 are integrally bonded together in an overlapping manner with the water absorption holes 4 aligned with the branch channels 8. . (3) A utility model in which the filter panel 1 is formed in a gently bent state with a substantially V-shaped cross section, and the header 2 is provided on the lower surface side of the bent part in the center along the length direction of the panel. Scope of registration claims 1st
A bottom filter for a fish tank according to item 1 or 2. (4) A bottom filter for a fish aquarium according to any one of claims 1 to 3 of the utility model registration claim, in which a plurality of suction ports 3 are provided at predetermined intervals in the length direction of the header 2. .