JPH0222686B2 - - 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) Prior Art Conventionally, in such a filtration device, the filtration case is generally installed in the aquarium with a space left between it and the inner surface of the aquarium.

(3) Problems to be solved by the invention However, if there is a space between the filtration case and the inner surface of the aquarium, ornamental fish kept in the aquarium may enter that space and become trapped between the filtration case and the aquarium. Sometimes you get stuck and can't move.

The present invention has been made to solve such conventional problems, and an object of the present invention is to provide a filtration device in which a filtration case can be securely fixed in close contact with the inner surface of an aquarium.

B. Structure of the Invention (1) Means for Solving the Problems The filtration device of the present invention is constructed by connecting a pair of mounting portions that form an angle slightly larger than the corner portions of the aquarium with a connecting portion. It has a cross-sectional shape in which the back wall facing the tank side and the front wall facing the inner side of the tank are connected to form a closed section, and has a drainage port at the top and a water intake port at the bottom. a filtration case basically formed into a cylindrical shape having; suction cups fixed to the outer surfaces of both attachment parts of the back wall to adsorb to the two sides of the water tank constituting the corner part; a filtration member housed within the filtration case to form a water conduit that guides the rising water flow toward the mouth along the longitudinal direction of the filtration case on the opposite side of the water inlet;
including.

(2) Function When attaching the filter case to the water tank, press the back wall of the filter case against the corner pipe with the back wall facing the corner of the water tank. Then, the front wall side ends of both attachment parts come into contact with the two sides of the aquarium, and the suction cups stick to the two sides. Therefore, the corners of the aquarium and both sides of the space between the filter cases are closed, and ornamental fish are reliably prevented from entering the space. Further, within the filter case, water that has been filtered from the water intake port through the filter member rises in the water conduit and is returned to the water tank from the drain port.

(3) Embodiment An embodiment of the present invention will be explained below with reference to the drawings. First, in FIG. 1, goldfish, tropical fish,
An aquarium 1 for breeding ornamental fish such as saltwater fish is formed in a box shape, and a corner portion 2 formed by two mutually perpendicular side surfaces 1a and 1b has a main body. The filtration case 3 of the inventive filtration device is installed. Pressurized air is supplied into the filtration case 3 from an air pump P as a pressurized air source installed outside the aquarium 1, so that the filtration case 3
A rising water flow occurs inside the tank 1 and filters the filter case 3.
After the water sucked into the tank 1 is filtered, it is returned to the water tank 1.

Referring also to FIGS. 2, 3, and 4, the filtration device includes a filtration case 3 and a plurality of suction cups 4.
and a filter member 5.

The filtration case 3 is basically formed of a synthetic resin into a cylindrical shape with a bottom, and its cross-sectional shape is formed by a back wall 7 disposed facing the corner portion 2 side.
and a front wall 8 disposed facing the inner side of the water tank 1 are interconnected to form a closed cross section.

The back wall 7 connects the pair of mounting parts 9 and 10 with the connecting part 1.
1, and both mounting parts 9, 10
are arranged so that the angle α between them is slightly larger than the angle formed by the side surfaces 1a and 1b of the aquarium 1, that is, 90 degrees, and the connecting portion 11 is formed in an arc shape convexly curved toward the corner portion 2 side. be done. On the other hand, the front wall 8 is formed into a trapezoid shape that narrows toward the inside of the water tank 1.

A drain port 12 that opens toward the inside of the aquarium 1 is provided at the top of the filter case 3.
An auxiliary water intake port 14 is bored in the bottom wall 13 of the tank. Further, a plurality of slit-shaped water intake ports 15 are formed at a lower portion of the front wall 8 of the filter case 3 at intervals vertically.

On the other hand, in the back wall 7 of the filter case 3, a pair of recesses 16 are provided on the outer surfaces of both the mounting portions 9 and 10, spaced apart from each other in the vertical direction, and a housing groove 17 is provided in the connecting portion 11. Moreover, the accommodation groove 17 is arranged to extend vertically from the upper end of the filter case 3 to near the bottom, and the upper end of the accommodation groove 17 is open upward, and the lower end of the accommodation groove 17 is arranged upwardly. An end wall 18 facing the is provided. Furthermore, this end wall 18 is provided with a hole 19 that communicates with the inside of the filter case 3.

The suction cup 4 is attached to each recess 16 of both the mounting parts 9 and 10.
The base of the suction cup 4 is engaged with the mounting parts 9 and 10, respectively. Moreover, each sucker has 4
The tips of the mounting portions 9 and 10 protrude outward from the outer surfaces of the mounting portions 9 and 10.

The filter member 5 is formed into a columnar shape with a cross-sectional shape substantially corresponding to the cross-sectional shape of the front wall 8,
It is housed and arranged in the filter case 3 with a bias towards the front wall 8 side. As a result, there is a back wall 7 inside the filter case 3.
A water conduit 20 spanning the entire length of the filter case 3 is defined between the filter member 5 and the filter case 3 , the upper end of the water conduit 20 is connected to the drain port 12 , and the lower end is connected to the auxiliary water intake port 14 .
Continuing to.

At the lower part of the water conduit 20, an air injection member 6 formed into a cylindrical shape and made of a breathable material such as a foamable synthetic resin is disposed. This air injection member 6 is integrally provided with a small-diameter connecting pipe 21 , which projects from the hole 19 into the receiving groove 20 .

One end of a hose 22 is connected to an air pump P outside the water tank 1. This hose 22 is introduced into the housing groove 17 from the upper end of the filter case 3, and
It extends downward inside and is connected to the connecting pipe 21 of the air injection member 6 .

Next, the operation of this embodiment will be explained with reference to FIG. 7 facing the corner 2. In this state, first, as shown by arrow Pa in FIG. 5a, one mounting portion 9 is pressed toward one side surface 1a so that the suction cup 4 is attracted to the side surface 1a.

Next, as shown by arrow Pb in FIG. 5b, the other mounting portion 10 is pressed against the other side surface 1b so that the suction cup 4 is attracted to the side surface 1b. At this time, since the angle formed by both mounting parts 9 and 10 is slightly larger than the angle formed by both side surfaces 1a and 1b, one mounting part 9
With the end of the front wall 8 in contact with the side surface 1a, the connecting portion 11 side separates from the side surface 1a, and the pressure in the sealed space between the suction cup 4 of the attachment portion 9 and the side surface 1a is reduced.
Therefore, the suction force of the suction cup 4 becomes large, and the attachment part 9
is securely attached to the side surface 1a.

When the pressing state of the mounting part 10 is released, the mounting part 1
0 is the suction cup 4 on the mounting part 9 side, as shown in FIG.
Due to the suction force on the side surface 1a, the end portion on the front wall 8 side is brought into contact with the side surface 1b, and the connecting portion 11 side is separated from the side surface 1b. As a result, the suction cup 4 is
The pressure in the sealed space between the side surface 1b and the side surface 1b is reduced, and the suction cup 4
The adsorption force becomes large, and the attachment part 10 is reliably attached to the side surface 1b.

In this installed state, the end portions of the mounting portions 9 and 10 on the back wall 7 on the front wall 8 side are in close contact with both side surfaces 1a and 1b of the aquarium 1, and the space between the filter case 3 and the corner portion 2 is Closed. Therefore, ornamental fish are reliably prevented from entering between the filter case 3 and the aquarium 1. Moreover, since the hose 22 is accommodated in the accommodation groove 17 provided in the back wall 7,
It becomes possible to bring the back wall 7 closer to the corner part 2, and the gap between the corner part 2 and the back wall 7 can be made smaller. is prevented from entering.

When pressurized air is supplied from the air pump P to the air injection member 6 with the filtration case 3 attached to the water tank 1, air bubbles generated in the air injection member 6 flow into the water conduit 20.
The water rises within the water conduit 20, and an upward water flow is generated within the water conduit 20.
This rising water flow is formed by water flowing from the water inlet 15 through the filter member 5 and flowing into the headrace 20 and water flowing into the headrace 20 from the auxiliary water intake 14. Water flowing in from the drain port 1 is purified by passing through the filter member 5 at an appropriate speed.
2 into the water tank 1. In other words, by providing the auxiliary water inlet 14, the speed of water passing through the filter member 5 is adjusted to an appropriate value to promote the reproduction of chlorella and aerobic microorganisms, and these aerobic microorganisms can promote the growth of ornamental fish. It is possible to decompose organic matter such as leftover bait and feces to prevent clogging of the filter member 5, and to provide chlorella and the like as live bait for ornamental fish.

C. Effects of the Invention As described above, the filtration device of the present invention is constructed by connecting a pair of mounting portions that form an angle slightly larger than the corner portion of the aquarium through a connecting portion, and is arranged facing the corner portion side. It has a cross-sectional shape in which the back wall facing the tank and the front wall facing the inside of the tank are connected to form a closed cross section, and has a drainage port at the top and a water intake port at the bottom. a filtration case formed in a cylindrical shape; a suction cup fixed to the outer surface of both attachment parts of the back wall to adsorb to two sides of the water tank forming the corner part; and an upward flow of water toward the drain port. a filtration member housed in the filtration case in order to form a water conduit guiding the water along the longitudinal direction of the filtration case on the opposite side of the water inlet; The filter case can be reliably attached to the aquarium by suction cups in close contact with the two sides of the filter case, and ornamental fish can be reliably prevented from entering between the filter case and the aquarium. Furthermore, the filter case is cylindrical and the water conduit inside the filter case also serves as a purification chamber, so it can be installed in the aquarium with a sleek appearance that blends in with the corners of the aquarium. becomes possible.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall perspective view, FIG. 2 is an enlarged front view of the filter case, FIG. 3 is an enlarged vertical side view of the filter case, and FIG. 4 is an enlarged longitudinal side view of the filter case. 1, and FIG. 5 is an enlarged sectional view corresponding to FIG. 4 for explaining the installation procedure. DESCRIPTION OF SYMBOLS 1... Water tank, 1a, 1b... Side surface, 2... Corner part, 3... Filter case, 4... Suction cup, 5... Filter member, 6... Air injection member, 7... Back wall, 8 ……
Front wall, 9, 10...Mounting part, 11...Connection part, 1
2...Drain port, 14...Auxiliary water intake port, 15...Water intake port, 16...Recess, 17...Accommodation groove, 19...
Hole, 20...conductor, 22...hose.

Claims (1)

[Claims] 1. A filtration device installed in a box-shaped aquarium, comprising:
A back wall formed by connecting a pair of mounting parts forming a slightly larger angle than the corner part of the aquarium with a connecting part, and facing the corner part, and a front face facing the inner side of the aquarium. a filtration case having a cross-sectional shape in which the walls are connected to form a closed cross section, and having a drainage port in the upper part and a water intake port in the lower part, and is basically formed in a cylindrical shape; suction cups fixed to the outer surfaces of both mounting parts of the back wall to adsorb to the two sides of the water tank forming the part; and a water conduit that guides the rising water flow toward the drain port to be filtered on the side opposite to the water intake port. A filtration device comprising: a filtration member formed along the longitudinal direction of the case and housed within the filtration case. 2. The filtration device according to claim 1, wherein an air injection member connected to a pressurized air source is disposed at a lower portion of the water conduit. 3. The filtration device according to claim 1 or 2, wherein the bottom of the filtration case is provided with an auxiliary water intake port that communicates with the water conduit. 4. An accommodation groove for accommodating a hose connecting the air injection member and the pressurized air source is provided on the outer surface of the connection part of the back wall and extends vertically from the upper end of the filter case to near the bottom of the filter case, and 4. The filtration device according to claim 2, wherein the lower end wall of the groove is provided with a hole for connecting the air injection member and the hose to each other. 5. A recess is provided on the outer surface of the mounting portion of the back wall,
The filter according to claim 1, 2, 3, or 4, wherein the suction cup is fixedly installed in the recess so that its tip protrudes beyond the outer surface of the attachment part. Device.