JPH0223205B2 - - Google Patents

Description

Detailed Description of the Invention A. Object of the Invention (1) Field of Industrial Application The present invention relates to a filtration device installed in a box-shaped aquarium.

(2) Conventional technology Conventionally, as such a filtration device, there is one in which the interior of a vertically extending filtration case is divided into an unpurified chamber and a purified chamber using a filter material, and the water in the purified chamber is sucked up (for example, in a filter case that extends vertically). Publication number 60-7932).

(3) Problems to be Solved by the Invention However, in the conventional system described above, water is sucked up from various parts in the vertical direction inside the purification chamber, so most of the water is sucked up from the upper part of the purification chamber. Therefore, it was difficult to efficiently filter the entire surface of the filter material.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a filtration device that enables efficient filtration by allowing water to flow evenly over almost the entire surface of a filtration material.

B. Structure of the Invention (1) Means for Solving Problems The device of the present invention has a drain port at the top and a water intake port at the bottom, and has a cylindrical shape that basically extends vertically, and is attached to the wall of the water tank. with a filter case;
The filtration case is removably attached to the filtration case via support plates provided at both the upper and lower ends to define a filtration chamber, and the upper end extends up and down to communicate with the drain port, and the lower part has a suction port. A suction pipe is provided with a plurality of supporting arms protruding laterally fixed at a plurality of locations spaced apart in the axial direction; and an unpurified chamber on the outside connected to the water intake in the filtration chamber. A filtration material attached to a support arm with both upper and lower ends in contact with a support plate in order to divide the chamber into an unpurified chamber on the inner side connected to the suction port; An air injection member disposed at a lower portion within the tube; and a pressurized air supply source connected to the air injection member.

(2) Effect By injecting air from the air injection member, a rising water flow is generated in the suction pipe, and the water that flows into the unpurified chamber from the water intake flows through the filter medium and enters the purification chamber.
Further, it ascends through the suction pipe through the suction port. Moreover, since the suction port is provided at the bottom of the suction pipe,
The water pressure applied to the suction port is relatively high, the amount of suction is relatively large, a water flow is generated from the top to the bottom of the purification chamber, and efficient filtration is possible using the filtration material almost on the entire surface. .

(3) Embodiment An embodiment of the present invention will be described below with reference to drawings. In FIG. 1, an aquarium 1 for breeding ornamental fish such as goldfish, tropical fish, and saltwater fish is formed in a box shape. , mutually orthogonal 2 of this tank 1
Corner portion 2 composed of two wall surfaces 1a and 1b
A filter case 3 is attached to the filter case 3. This case 3
The water in the water tank 1 is sucked into the tank 1, and the water purified in the filter case 3 flows back into the water tank 1.

Referring also to FIGS. 2 to 7, the filter case 3 is basically configured in a cylindrical shape by, for example, synthetic resin, and its cross-sectional shape faces toward the corner portion 2 side. A back wall 6 disposed in the water tank 1 and a front wall 7 disposed facing the inner side of the aquarium 1 form a closed cross section and are connected to each other.

The back surface 6 has a connecting portion 10 between the pair of mounting portions 8 and 9.
Both mounting parts 8 and 9 are arranged so that the angle α between them is slightly larger than the angle formed by the walls 1a and 1b of the aquarium 1, that is, 90 degrees, and the connecting part 10 is It is formed in an arc shape convexly curved toward the wall 7 side. On the other hand, the front wall 7 is formed in a trapezoid shape that narrows toward the inside of the aquarium 1, and both ends of the front wall 7 and the outer ends of the mounting parts 8 and 9 on the back wall 6 are mutually connected. Polymerized and connected.

A top plate 11 that closes the top end of the filter case 3 when connected to the back wall 6 is integrally provided at the upper end of the front wall 7, and approximately in the center of this top plate 11,
A discharge pipe 12 is provided to form a drain port 13, extending upward into the filter case 3 with its inner end slightly protruding, and further bent toward the inside of the water tank 1. Furthermore, plate portions are provided at the lower ends of the front wall 7 and the lower ends of the back wall 6 to form a bottom plate 14 that closes the bottom end of the filtration case 3 when connected to each other, and approximately at the center of the bottom plate 14. A through hole 15 is bored.

A suction pipe 16 extending vertically is fixed and arranged approximately in the center of the filter case 3. That is, the filter case 3 is provided at the upper end and lower end of the suction pipe 16.
a support plate 17 having a shape corresponding to the cross-sectional inner shape of the
18 are integrally attached, and support flanges 19 for supporting the support plate 18 are protruded from the lower inner surfaces of the back wall 6 and the front wall 7, and the upper support plate 17 is attached to the top plate 11. The suction pipe 16 is installed in the filter case 3 with the support plate 18 supported by the support collar 19 in a state where they are in contact with each other. Moreover, in this installed state, the inner end of the discharge pipe 12 fits into the upper end of the suction pipe 16,
The suction pipe 16 communicates with the drain port 13.

With the suction pipe 16 attached, filter case 3
A filtration chamber 20 is defined between the inner support plates 17 and 18, and this filtration chamber 20 is separated by a filtration material 21 attached to the suction pipe 16 into an unpurified chamber 22 on the outer side.
It is divided into a purification chamber 23 on the inner side.

A pair of support arms 24 and 25 that protrude toward the connecting portion of the back wall 6 and front wall 7 are provided at a plurality of locations, for example seven locations, spaced apart in the axial direction of the suction pipe 16, and the back wall A support arm 26 is provided to protrude toward the connecting portion 10 side of 6. A small diameter shaft portion 27 extending parallel to the suction pipe 16 is integrally provided at the tip of both the support arms 24 and 25.
6 is integrally provided with a locking portion 28 that is curved to correspond to the connecting portion 10 in the back wall 6 and slightly extends from both ends thereof in parallel with both the mounting portions 8 and 9. The locking portion 28 is brought into contact with the inner surfaces of the connecting portion 10 and both mounting portions 8 and 9.

The filtering material 21 is formed in a rectangular pine shape, and the supporting arms 24 and 2 of the suction pipe 16 are held in contact with the supporting plates 17 and 18 at both ends in the longitudinal direction.
It is wrapped around 5,26. That is, both ends of the filter medium 21 in the width direction are engaged with the locking portions 28 at the ends of the support arms 26 by bending them at the small diameter shaft portions 27 at the ends of the support arms 24 and 25.

Suction pipe 1 with filter material 21 attached in this way
6 into the filtration case 3, the inside of the filtration chamber 20 is divided into an unpurified chamber 22 and a purification chamber 23 over the entire length in the longitudinal direction, and the suction pipe 16 is arranged in the purification chamber 23. It turns out. Moreover, a suction port 29 communicating with the lower part of the purification chamber 23 is provided at the lower part of the suction pipe 16. Further, in the lower part of the front wall 7 of the filtration case 3, a plurality of water intake ports 30 are formed in the form of slits at intervals in the vertical direction so as to communicate with the lower part of the unpurified chamber 22.

A water intake chamber 31 is defined between the bottom plate 14 of the filtration case 3 and the support plate 18 of the suction pipe 16, and a slit extending in the vertical direction is provided at the bottom of the surface wall 7 to communicate with the water intake chamber 31. A plurality of auxiliary water intakes 32 shaped like
will be provided.

The water intake chamber 31 and the auxiliary water intake 32 are
The through hole 15 guides a small amount of water that has bypassed the cap 3 to the suction pipe 16.
It is blocked at 3. However, it is also possible to share the suction pipe 16 with, for example, a bottom-type filtration device,
In that case, a connecting pipe connected to the bottom type filtration device is inserted into the suction pipe 16 through the through hole 15.

On the other hand, a pair of recesses 34 are provided on the outer surfaces of both the mounting portions 8 and 9 on the back wall 6, spaced apart from each other vertically. Suction cups 35 are fixed to these recesses 34 so that their tips project outward beyond the outer surfaces of the attachment parts 8 and 9.

In order to suck up water from the purification chamber 23 to the water intake port 13, a suction means 38 is attached to the filter case 3, and this suction means 38 is connected to the suction pipe 1.
6, an air injection member 39 disposed at the lower part of the suction pipe 16, an air pump as a pressurized air supply source 40, and a hose 41 connecting the air injection member 39 and the pressurized air supply source 40. .

The air injection member 39 is formed into a cylindrical shape from a breathable material such as a foamable synthetic resin, and a connecting pipe portion 42 is integrally provided on the air injection member 39 . One end of a hose 41 is connected to the connecting pipe portion 42, and the hose 41 is connected to the suction pipe 16.
The hose 41 extends upward, is pulled out of the water tank 1 through a take-out hole 43 provided at the upper part of the discharge pipe 12, and has the other end connected to a pressurized air supply source 40 placed outside the water tank 1.

In such a suction means 38, the pressurized air supply source 4
By supplying pressurized air from 0, the air ejected from the air injection member 39 becomes fine bubbles and rises inside the suction pipe 16 and the discharge pipe 12, thereby causing the inside of the suction pipe 16 and the discharge pipe 12 to rise. A rising water flow occurs.

Next, to explain the operation of this embodiment, when attaching the filter case 3 to the aquarium 1, the back wall 6 is attached to the corner portion 2 so that the drain port 13 corresponds to the water surface in the aquarium 1. Let me come. In this state, first, as shown in FIG. 8a, one mounting portion 8 of the back wall 6 is pressed in the direction of arrow Pa toward one wall surface 1a so that the suction cup 35 is attracted to the wall surface 1a. Next, as shown in FIG. 8b, the other mounting portion 9 is pressed toward the other wall surface 1b in the direction of arrow Pb so that the suction cup 35 is attracted to the wall surface 1b. At this time, since the angle α formed by both mounting parts 8 and 9 is larger than the angle formed by both wall surfaces 1a and 1b, one mounting part 8 is connected with its end on the front wall 7 side pressed against wall surface 1a. The part 10 side is separated from the wall surface 1a,
The pressure in the sealed space between the suction cup 35 of the attachment part 8 and the wall surface 1a is reduced. Therefore, the adhesion force of the suction cup 35 is increased, and the attachment portion 8 is reliably attached to the wall surface 1a.

When the pressing state of the mounting part 9 is released, the mounting part 9
As shown in FIG. 4, the suction cup 35 on the mounting part 8 side
Due to the adsorption force on the wall surface 1a, the end portion on the front wall 7 side is brought into contact with the wall surface 1b, and the connecting portion 10 side is separated from the wall surface 1b. As a result, the pressure in the sealed space between the suction cup 35 and the wall surface 1b is reduced in the same manner as described above, the suction force of the suction cup 35 is increased, and the attachment portion 9 is reliably attached to the wall surface 1b. Moreover, in this installed state, if the water tank 1 is covered with gravel 4, the water intake port 30 is positioned above the gravel 4.

In this state, both wall surfaces 1 of the aquarium 1 are attached to the front wall 7 side ends of the respective mounting portions 8 and 9 on the back wall 6.
a, 1b, and the space between the filter case 3 and the corner portion 2 is closed. Therefore,
The ornamental fish is surely prevented from getting stuck between the filter case 3 and the aquarium 1 and becoming stuck.

After this installation is completed, when the pressurized air supply 40 is activated, an upward flow of water is created in the suction pipe 16. As a result, inside the filter case 3,
The water sucked into the unpurified chamber 22 from the water intake port 30 flows through the filtering material 21 and is purified until it reaches the purification chamber 23.
further flows into the suction pipe 1 from the suction port 29.
6 and returns to the water tank 1 through the drain port 13. At this time, since the suction port 29 is provided at the bottom of the suction pipe 16, the entire water pressure from the water surface to the suction port 29 is applied to the suction port 29.
Water can be efficiently sucked up and the unpurified room 22
The water flowing into the purification chamber 23 flows over the entire surface of the filter material 21 and is efficiently purified.

On the other hand, as the rising water flow is generated in the suction pipe 16, the water that has flowed into the water intake chamber 31 from the auxiliary water intake port 32 is also sucked up by the suction pipe 16. Therefore,
The water rising inside the suction pipe 16 consists of water that has been purified by flowing through the filter medium 21 from the water intake port 30 and water that is sucked in from the auxiliary water intake port 32 through the water intake chamber 31. Water flowing in from the water tank 1 flows through the filter medium 21 at an appropriate speed to be purified, and then flows back into the water tank 1 through the drain port 13. In other words, by providing the auxiliary water intake 32, the speed of water flowing through the filter medium 21 is adjusted to an appropriate value to promote the reproduction of chlorella and aerobic microorganisms, and these aerobic microorganisms remove leftover food for ornamental fish. Decomposes organic matter such as feces, filtering material 2
In addition to preventing the clogging of fish, it is possible to provide chlorella and the like as live bait for ornamental fish.

Of course, if it is possible to allow the speed of water flowing through the filter medium 21 to increase somewhat, it is also possible to close the auxiliary water intake port 32.

C. Effects of the Invention As described above, the device of the present invention has a filtration case that has a drainage port at the top and a water intake port at the bottom and is basically cylindrical and extends vertically and is attached to the wall of the aquarium; It is removably installed inside the filtration case via support plates provided at both the upper and lower ends to define a filtration chamber inside, and the upper end extends up and down to communicate with the drain port, and the lower part is provided with a suction port. a suction pipe, each of which has a plurality of supporting arms that protrude laterally fixed at multiple locations spaced apart in the axial direction; an unpurified chamber on the outside connected to the water intake in the filtration chamber; A filtration material attached to a support arm with its upper and lower ends in contact with a support plate to separate the unpurified chamber on the inner side connected to the mouth; An air injection member disposed at the bottom; and a pressurized air supply source connected to the air injection member are provided, so that the water pressure applied to the suction port is relatively large and the water pressure is directed from the top to the bottom of the purification chamber. By generating a water flow, efficient filtration can be performed by effectively using the filter material over almost the entire surface.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall perspective view, and FIG.
An enlarged line view, Figure 3 is a sectional view taken along the line - in Figure 2,
Figure 4 is an enlarged cross-sectional view taken along the line - of Figure 3, Figure 5 is an enlarged cross-sectional view taken along the line - of Figure 3, Figure 6 is a cross-sectional view taken along the line - of Figure 4, and Figure 7 is a suction pipe and filter. FIG. 8 is an enlarged exploded perspective view of the material, and is a sectional view corresponding to FIG. 4 for explaining the procedure for attaching the filter case. 1...Aquarium, 3...Filtering case, 13...Drain port, 1
7, 18...Support plate, 20...Filtering chamber, 21...Filtering material, 22...Unpurified chamber, 23...Purification chamber, 24,2
5, 26... Support arm, 29... Suction port, 30... Water intake port, 39... Air injection member, 40... Pressurized air supply source.

Claims (1)

[Claims] 1 In a filtration device installed in a box-shaped aquarium,
A filtration case that has a drain port at the top and a water intake port at the bottom and is basically cylindrical and extends vertically and is attached to the wall of the aquarium; It is removably installed in the filter case via a supporting plate, and the upper end extends up and down to communicate with the drain port, and the lower part is provided with a suction port. A suction pipe to which a plurality of supporting arms protruding laterally are each fixed; The filtration chamber is divided into an unpurified chamber on the outer side connected to the water intake port and an unpurified chamber on the inner side connected to the suction port. a filtration material attached to the support arm with both upper and lower ends in contact with the support plate; an air injection member disposed at the lower part of the suction pipe to generate an upward water flow within the suction pipe; an air injection member A filtration device comprising: a source of pressurized air connected to;