JPS58163415A - Filter apparatus - Google Patents

Abstract

PURPOSE:To provide a small filter apparatus with good efficiency constituted so as to be capable of obtaining sufficiently high filtration capacity by two filter materials arranged in an upper and a lower filter chambers even if the volume of a filter case is made small. CONSTITUTION:A dense filter material 7 arranged in an upper filter chamber 4 easily generates clogging compared to a coarse filter material 8 accommodated in a lower filter chamber 5 but, because water in a water tank 1 is always flowed into the downstream chamber 30 of the upper filter chamber 4 from a lower water sucking port 16 through the coarse filter material 8 having relatively low water passing resistance in the lower filter chamber 5, water sucking force is always generated in the downstream chamber 33. Therefore, water in the upstream chamber 37 of the upper filter chamber 4 is sucked into the downstream chamber 33 through the dense filter material 7 without interrupting a water flow from the upstream chamber 37 to the downstream chamber 33 and good filtering action due to the dense filter material 7 can be continued over a long period of time.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a filtering device for breeding water for ornamental fish such as goldfish, tropical fish, and saltwater fish. - forming hyperchambers;
By arranging a dense filtration material with a relatively large filtration area in the upper filtration chamber and a coarse filtration material in the lower filtration chamber, the flow rate of water passing through the dense filtration material can be relatively reduced. By making it smaller, it promotes the growth of aerobic microorganisms including bacteria such as chlorella, increasing the purification efficiency of polluted water in the aquarium. The purpose of the present invention is to provide a small and efficient (1#!) filtration device that can provide a sufficiently large filtration capacity with one filtration material.

Hereinafter, one embodiment of the present invention will be explained with reference to the drawings. Fig. 1 shows the filtration device 2 of the present invention installed in an aquarium 1, and the filtration case 3 of this filtration device 2 is ,
A rectangular cylindrical case main body 11 has a drain pipe 9 integrally formed in the center of the upper surface 11α and has a large number of water absorption holes 10 around it, and is removably fitted into the open lower end of the case main body 11. The bottom surface 15 of the lid 14 has a large number of radial water intake holes 16, and a short cylindrical air supply port 1 with an open upper end in the center thereof.
As clearly shown in FIG. 2, the inner peripheral surface of the air supply port 17 is provided with a large number of ventilation grooves 18 having an uneven cross section over the entire circumference. A cap 19 is fitted to the open upper end of the air supply port 17, and a ventilation gap is formed between them by a ventilation groove 18. The hollow interior of the air supply port 17 is connected to the inner end of an air supply passage 22 that is integrally provided on the bottom surface 15 of the lid 14 , and the outer end of the air supply passage 22 is open to the side surface 13 of the lid 14 . In addition, a plurality of support ribs 23 are provided on the outer peripheral surface of the air supply port 17 at equal intervals in the circumferential direction.
are integrally formed.

A frame 6 is disposed inside the filter case 3, and this frame 6 has the following features:
A ceiling plate 25 having a star-shaped outer shape as a whole with a drain hole 24 bored in the center, and a bottom plate 27 are integrally connected by a plurality of connecting rods 26, and the bottom plate 27 is connected at the center thereof. The lid 14 has an opening 2B that fits into the outer peripheral surface of the air supply port 17 protruding from the center of the lid 14, and a large number of through holes 29 are bored around the opening 28. A plurality of locking protrusions 31 are integrally provided on the inner surface of the ceiling plate 25 and extend downward at equal intervals around the drain port 24, and a plurality of locking protrusions 31 are integrally provided on the inner surface of the bottom plate 27 in correspondence with the locking protrusions 31. A stop protrusion 32 is integrally provided to protrude.

The frame body 6 is supported by being in contact with the upper end surface of the side surface 13 of the lid body 14 and the upper end surface of the support fj IJ pipe 23 on the outer periphery of the air supply hole 17 at the outside of the bottom plate 27 and at the inner peripheral portion. The bottom plate 2T is formed to have an outer shape that is approximately the same as the inner circumference of the rectangular cylindrical side surface 11b of the case main body 11, and allows the inside of the filtration case 3 to be connected to the upper surface 11α of the case main body 11.
The upper filtration chamber 4 and the bottom surface 15 of the lid body 14 are connected to the water absorption hole 10.
and the lower filtration chamber 5 connected to the water absorption hole 16, respectively, and constitute the partition plate of the present invention.

As shown in FIG. 2, the frame body 6 includes a plate-shaped dense filter material 7.
are held fixed by being alternately locked on the inner peripheral surface to the connecting rod 26 and on the outer peripheral surface to locking protrusions 31 and 32 provided opposite to the ceiling plate 25 and the bottom plate 27. In other words, the plate-shaped filter material 7 is arranged in the upper filtration chamber 4 in a wave-shaped and wound cylindrical state, and outside and inside thereof, there is an upstream chamber 37 connected to the upper water absorption hole 10 of the upper surface 11α of the case main body 11 and an upper surface of the case main body 11. Drain port 2 of ceiling plate 25 is connected to drain pipe 9 protruding from 11α.
A downstream chamber 33 having a relatively large volume and communicating through the downstream chamber 33 is defined.

The downstream chamber 33 has a large number of through holes 2 bored in the bottom plate 27 of the frame body 6.
It communicates with the lower filtration chamber 5 defined by the bottom plate 27 and the inner surface of the lid body 14 via the vent hole 9, and at the same time communicates with the air supply port 17 via the ventilation groove 18.

Note that the lower filtration chamber 5 accommodates a coarse filtering material 8 made of pebbles, etc., and the filtering material 8 acts as a weight to prevent the filtration device 2 from floating up when it is installed in the water tank 1.

The side surface 13 of the lid 14 of the air supply passage 22 connected to the air supply port 17
One end of a connector 34 is removably fitted into the outer end that opens to the outside, and the other end is connected to an air pump 36 via an air supply pipe 35.

Q. Next, the operation of this embodiment will be explained.As shown in FIG.
Install the air pump 36 on the bottom of the aquarium 1 with pebbles etc.
When the air pump 36 operates, air is supplied to the air supply port 17 via the air supply pipe 35, the connector 34, and the air supply passage 22, and from there air is supplied to the air supply port 17 through the ventilation groove 18 on the inner surface of the air supply port IT.
through and ejects into the downstream chamber 33 of the lower filtration chamber 4 in the form of bubbles,
The ejected air becomes an airflow and rises in the downstream chamber 33, and the water in the downstream chamber 33 also rises and is discharged into the water tank 1 through the drain port 24 and the drain pipe 9. As a result,
The water absorption force acts on the downstream chamber 33, and the polluted water in the water tank 1 is
As shown by the arrow in FIG. 1, a part of the water is sucked into the upstream chamber 37 from the water suction hole 10 on the top surface of the filter case 3, passes through the dense filter material 7, is purified, and then enters the downstream chamber 33. Some of the water flows into the lower filtration chamber 5 through the water suction holes 16 drilled in the lid 14 of the filtration case 3 through gaps between pebbles and the like spread on the bottom of the water tank 1, and is stored therein. After passing through the coarse filtering material 8 and being cleaned, it flows into the downstream chamber 33 of the upper filtration chamber 4 through the through hole 29 of the bottom plate 2T of the frame body 6. The water in the downstream chamber 33 that has passed through the filter media 7 and 8 and been purified is
The air is introduced from the air supply port 17 through the ventilation groove 18 into the lower cap chamber 33 and the drain port 2 opened in the ceiling plate 25.
4 and flows into the drain pipe 9, from where it is returned to the water tank 1 as clean water.

By the way, the dense filter material 7 in the upper filtration chamber 4 has a greater water flow resistance than the coarse filter material 8 in the lower filtration chamber 5, so the flow rate of polluted water passing through it is relatively low, and the dense filter material 7 Promotes the growth of aerobic microorganisms, including beneficial bacteria such as chlorella, which are difficult to generate when the flow rate is high, within the filter material T.
These aerobic microorganisms can decompose organic matter such as leftover food and feces adhering to the dense filter material 7 to prevent its clogging, and provide bacteria such as chlorella as live food for ornamental fish in the aquarium 1. You can also do it.

In addition, the dense filter material 7 disposed in the upper filtration chamber 4 is more likely to cause clogging than the coarse filter material 8 accommodated in the lower filtration chamber 5; Since water always flows from the hole 16 into the downstream chamber 33 of the upper filtration chamber 4 through the coarse filtering material 8 with relatively low water flow resistance in the lower filtration chamber 5, water absorption force is always generated in the downstream chamber 33. Therefore, the water in the upstream chamber 37 of the upper filtration chamber 4 is sucked into the downstream chamber 33 through the dense filter material 7, and the water flow from the upstream chamber 37 to the downstream chamber 33 is never interrupted (for a long period of time). Good filtration action by the dense filter material 7 can be maintained throughout the period.

As described above, according to the present invention, the inside of the filtration case is divided into upper and lower filtration chambers by a partition plate, and a dense filtration material is arranged in a cylindrical shape in the upper filtration chamber. An upstream chamber that communicates with the upper water absorption hole provided at the top of the filter case, and a downstream chamber with a relatively large volume that connects to the drain pipe provided on the top surface of the filter case are defined, and the partition plate is closely spaced downstream of the downstream chamber. The lower filtration chamber is communicated with the lower filtration chamber through the provided through hole, and the lower filtration chamber is communicated with the lower water suction hole formed in the bottom surface of the filtration case. Since the downstream chamber is connected to an air supply port connected to an air pump, the polluted water in the aquarium is divided into two from the upper and lower water intake holes.

It can be filtered by a dense filter material and a coarse filter material introduced into the lower 4.2W filtration chamber and placed there.
ν Even if the volume of the filtration case is reduced, the
It is possible to provide a compact reception device with high filtration efficiency by making the total area of the filtration relatively large, and the flow rate at which the polluted water passes through the dense 6.1 filtration material in the upper filtration chamber is lower than that in the lower filtration chamber. The flow rate is much lower than the flow rate that passes through coarse filter media with low water flow resistance, and therefore, the flow rate is much lower than the flow rate that passes through coarse filter media with low water flow resistance. The aerobic microorganisms contained therein can be grown to a large extent to decompose organic matter such as leftover feed and feces adhering to the dense filtering material, thereby preventing clogging of the filtering material and further increasing the purification ability. In addition, since a lower water absorption hole is provided on the bottom of the epidemic case, the water in the aquarium can be guided from the lower water absorption hole to the lower filtration chamber through gaps such as pebbles laid on the bottom of the aquarium. In addition to feeding aerobic bacteria to propagate and help purify polluted water, it also suppresses the propagation of anaerobic bacteria that have a negative impact on the growth of ornamental fish in the aquarium, thereby maintaining good water quality in the aquarium. The coarse filtration material housed in the lower filtration chamber also acts as a weight to prevent the filtration device from floating up when installed in the aquarium, so there is no need to provide a separate weight, contributing to the miniaturization of the device. Furthermore, since the downstream chamber of the upper filtration chamber is formed to have a relatively large volume, the air ejected from the air supply port connected to the air pump to the downstream chamber becomes discontinuous and large bubbles. It is not continuous, but small air bubbles rise inside the tank and are discharged from the drain pipe into the aquarium, so the air bubbles not only do not spoil the beauty of the aquarium, but also create a continuous upward flow of water in the downstream chamber. be able to.

[Brief explanation of the drawing]

The drawings show one embodiment of the device of the present invention, and FIG. 1 is a sectional view taken along the line 1-I in FIG. 2, showing the device of the present invention installed in a water tank. -11 line sectional view, 3rd
The figure is a perspective view showing the device of the present invention in an exploded state. 3... Filter case, 4... Upper filtration chamber, 5... Lower filtration chamber, 7... Dense filter material, 8... Coarse filter material,
9...Exhaust ¥, 36...Air pump

Claims (1)

[Claims] The inside of the filtration case is divided into upper and lower filtration chambers by a partition plate,
A dense filtration material is arranged in a cylindrical shape in the upper filtration chamber, and on the outside and inside thereof, / A downstream chamber with a large volume connected to the pipe is defined, and in the downstream chamber,
The lower filtration chamber is communicated through a through hole formed in the partition plate, and the lower filtration chamber is communicated with a lower water absorption hole formed in the bottom of the filter case, and the inside thereof also serves as a weight. 1. A one-pass device that accommodates coarse grater material and further communicates an air supply port connected to an air pump with the downstream chamber.