JPS607932B2 - filtration device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a water filtration device for raising ornamental fish such as goldfish, tropical fish, and saltwater fish. By forming a pass-through chamber, placing dense pass-through material with a relatively large pass-through area in the upper pass-through chamber, and arranging coarse pass-through material in the lower pass-through chamber, a dense pass-through can be achieved. By reducing the flow rate of water passing through the material to encourage the growth of aerobic microorganisms including bacteria such as chlorella, the efficiency of purifying polluted water in the aquarium is increased, and at the same time, the volume of the filter case is reduced. Another object of the present invention is to provide a small and efficient sieve passing device in which a sufficiently large sieving capacity can be obtained by two sieve sieves placed in the upper and lower transfer chambers.

Hereinafter, one embodiment of the present invention will be explained with reference to the drawings. Fig. 1 shows a state in which a water filter device 2 of the present invention is installed in an aquarium 1, and a filter case 3 of the filter device 2. The case main body 11 has a rectangular cylindrical shape, in which a drain pipe 9 is integrally formed in the center of the upper surface 11a and a large number of water absorption holes 10 are bored around the drain pipe 9, and a case main body 11 is attached and detached from 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 hole with an open upper end in the center thereof. 1
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. In addition, a cap 19 is placed on the open upper end of the air supply □ 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 an inner part of an air supply passage 22 that is integrally provided on the bottom surface 15 of the lid body 14, and the outer end of the air supply passage 22 is closed to the side surface 13 of the lid body 14. Furthermore, a plurality of support ribs 23 are integrally formed on the outer peripheral surface of the air supply □ 17 at equal intervals in the circumferential direction. Sarugaga case 3
A frame body 6 is arranged inside, and this frame body 6 has a drain hole 24 bored in the center, a ceiling plate 25 having a star-shaped outer shape as a whole, and a bottom plate 27. 26, and the bottom plate 27 has a gate part 28 in its center that is iron-fitted to the outer peripheral surface of the air supply □ 17 protruding from the center of the lid 14. A large number of through holes 29 are bored around the periphery. 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 6 is supported by being in contact with the upper end surface of the side surface 13 of the diamond body 14 and the upper end surface of the support rib 23 on the outer periphery of the air supply port 17 at the outside and inner peripheral portion of the bottom plate 27 . The bottom plate 27 is formed to have an outer shape substantially the same as the inner circumference of the rectangular cylindrical side surface 11b of the case main body 11. The body 14 is defined at a lower water passage chamber 5 connected to a water absorption hole 16 in a bottom surface 15, respectively, and constitutes a partition plate of the present invention. As shown in FIG. 2, the frame body 6 has a plate-shaped dense sieve material 7 on its inner circumferential surface to the connecting village 26, and its outer circumferential surface to the ceiling plate 25 and the bottom plate 27 with locking protrusions. 31 and 32 alternately and are fixedly held, that is, the plate-shaped sieve material 7 is arranged in the upper sieve chamber 4 in a wavy and cylindrical state, and the outside thereof is ,
Inside, there is an upper water absorption hole 10 on the upper surface 11a of the case main body 11.
A continuous upstream chamber 37 and a downstream chamber 33 having a relatively large volume are defined, each of which is connected to a drain pipe 9 protruding from the upper surface 11a of the case main body 11 through a drain port 24 of the ceiling plate 25.

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

Incidentally, the lower filtration chamber 5 stores a coarse filtration material 8 made of pebbles, etc., and the filtration material 8 serves as a weight to prevent the filtration device 2 from floating up when it is installed in the water tank 1. Work as.

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

Next, the operation of this embodiment will be explained. Now, as shown in FIG. 1, when the air filtering device 2 configured as described above is installed on the bottom surface of the water tank 1 where pebbles etc. are laid and the air pump 36 is operated, the air pump 36 passes through the air pipe 35 and the connector. 34 and the air supply passage 22, air is supplied to the air supply port 17, and from there, air is ejected in the form of bubbles into the downstream chamber 33 of the upper sieving chamber 4 through the ventilation groove 18 on the inner peripheral surface of the air supply □17. The ejected air becomes an air current 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, a water absorption force acts on the downstream chamber 33, and a portion of the polluted water in the water tank 1 flows from the water suction hole 10 on the top surface of the case 3 to the upstream chamber 37, as shown by the arrow in FIG. After being inhaled and purified by passing through the dense oak filtration material 7, it flows into the downstream chamber 33, and another part passes through gaps such as pebbles spread on the bottom of the water tank 1 and enters the filtration case. The water is sucked into the lower sand filter chamber 5 through the water absorption hole 16 drilled in the lid 14 of No. 3, and is purified by passing through the coarse sand filter material 8 housed therein. The water flows into the downstream chamber 33 of the upper sieve chamber 4 through the through hole 29.The water in the downstream chamber 33, which has passed through the oak sieves 7 and 8 and has been cleaned, flows from the air supply row 7 to the ventilation groove 18. The air that is introduced into the downstream chamber 33 flows into the drain pipe 9 through the drain port 24 connected to the ceiling plate 25, and from there is returned to the water tank 1 as clean water. The dense waste material 7 in the chamber 4 has a greater resistance to water flow than the coarse waste material 8 in the lower waste material chamber 5, so the flow rate of polluted water passing through it is relatively low, and the dense waste material 7 When the flow rate is high, aerobic microorganisms including beneficial bacteria such as chlorella, which are often generated, are encouraged to breed in the oak filter material 7, and the aerobic microorganisms cause residual food and feces that adhere to the dense oak filter material 7. It is possible to decompose organic matter and prevent clogging, and bacteria such as chlorella can also be provided as live food for ornamental fish in the aquarium 1.

In addition, the dense oak sieve material 7 placed in the upper sieve chamber 4 is more likely to clog than the coarse sieve material 8 housed in the lower sieve chamber 5, but the water in the water tank 1 is Since water always flows from the lower water suction hole 16 into the downstream chamber 33 of the upper diaphragm chamber 4 through the coarse water transfer material 8 with relatively low water flow resistance in the lower transition chamber 5, the downstream chamber 33 always has a high water absorption capacity. Therefore, the water in the upstream chamber 37 of the upper cane passage chamber 4 is sucked into the downstream chamber 33 through the dense cane passage material 7, and the water flow from the upstream chamber 37 to the downstream chamber 33 is never interrupted. Therefore, it is possible to maintain a good permeability effect due to the dense material 7 for a long period of time. As described above, according to the present invention, the inside of the sanitation case is divided into upper and lower sanitation chambers by a partition plate, and a dense sanitation material is arranged in a cylindrical shape in the upper sanitation chamber. An upstream chamber that fits into the upper water absorption hole provided at the top of the filter case, and a downstream chamber with a relatively large volume connected to the drain pipe provided on the top surface of the filter case are respectively defined. , the lower water filter chamber is passed through a hole formed in the partition plate, and the lower water filter chamber is passed through a lower water absorption hole formed in the bottom of the water filter case, and the inside thereof is passed through. A rough oak filter material that also serves as a weight is housed in the tank, and an air supply port connected to the air pump is passed through the downstream chamber, so that the polluted water in the tank is divided into two from the upper and lower water intake holes. The monkeys can be treated by separating the upper and lower monkeys into the upper and lower monkey exit chambers, and placing them there. By making the total area of the spear filtration relatively large, it is possible to provide a compact filtration device with high filtration efficiency, and the flow rate at which the polluted water passes through the dense filtration material in the upper filtration chamber is lower than that of the lower filtration chamber. The flow rate is much lower than the flow rate that passes through coarse oak wood with low water flow resistance indoors, so aerobic microorganisms, including bacteria such as chlorella, which are difficult to grow in dense oak wood, are difficult to grow when the flow rate is high. It is possible to increase the number of reproductions and thereby decompose organic matter such as leftover feed and feces that adhere to the dense oak filtration material, thereby preventing clogging of the filtration material and further increasing the purification ability.

In addition, since a lower water absorption hole is provided on the bottom of the case, the water in the aquarium can be guided from the lower water absorption hole to the lower sanitation chamber through gaps such as pebbles laid on the bottom of the tank, allowing air to flow through the pebbles on the bottom of the aquarium. In addition, it is possible to maintain good water quality in the aquarium by suppressing the propagation of anaerobic bacteria that have a negative effect on the growth of ornamental fish in the aquarium. Furthermore, the coarse material stored in the lower filtration chamber also acts as a weight to prevent the filtration device from floating up when installed in the water tank, so there is no need to install a separate weight, making the device more compact. This contributes to Furthermore, since the downstream chamber of the upper diaphragm 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 does not become discontinuous large bubbles, but is continuous. Since small bubbles rise inside the tank and are discharged from the drain pipe into the aquarium, not only do the bubbles not spoil the aesthetic appearance of the aquarium, but also a continuous upward flow of water can be generated in the downstream chamber.

[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 1-1 in FIG. 2, showing the device of the present invention installed in a water tank. FIG. 3 is a perspective view showing the device of the present invention in an exploded state. 3...Transit case, 4...Upper oak passing chamber, 5...Lower oak passing chamber, 7...Dense oak passing material, 8...Coarse screening material, 9.
... Drain pipe, 10... Upper water absorption hole, 16... Lower water absorption hole, 17... Confinement □, 27... Bottom plate as partition, 29... Through hole, 33... Downstream chamber, 36... air pump. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1 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, and the outside and inside of it are communicated with the upper water absorption hole provided at the top of the filtration case. and a downstream chamber with a large volume connected to a drain pipe provided on the upper surface of the filtration case, respectively, and the lower filtration chamber is communicated with the downstream chamber through a through hole drilled in the partition plate. The lower filtration chamber is connected to a lower water suction hole formed in the bottom of the filtration case, and a rough filtration material that also serves as a weight is housed inside the filtration chamber, and the downstream chamber is connected to an air pump. A filtration device that connects air supply ports.