JPS63151320A - Filter apparatus - Google Patents

Abstract

PURPOSE:To suppress the clogging of a filter material, by a method wherein a filter case is surely mounted to the wall surface of a water tank to prevent an aquarium fish from entering the space between the corner part of the water tank and the filter case and the speed of the water transmitting through the filter material is made adjustable to a proper value. CONSTITUTION:The angle formed by both mount parts 8, 9 of the back wall 6 of a filter case 3 is slightly larger the corner angle of a water tank and suction discs 35 are fixed to the mount parts 8, 9 to make it possible to mount the filter case 3 to the corner part of the water tank in such a state that the side end parts of the surface walls 7 of the mount parts 8, 9 are brought into close contact with two wall surfaces 1a, 1b of the water tank and, therefore, an aquarium fish is surely prevented from entering the space between the corner part 2 of the water tank and the filter case 3. Since an intake chamber 31 communicates with a purifying chamber 31, the speed of the water transmitting through the filter material 21 is made adjustable to a proper value. Therefore, the propagation of aerobic bacteria in the filter material 21 is promoted to make is possible to suppress the clogging of the filter material 21 as much as possible.

Description

[Detailed description of the invention] A0 Purpose of invention (1) Industrial application fields The present invention relates to a filtration device installed in a box-shaped aquarium.

(2) Conventional technology Conventionally, in such a filtration device, the filter case is generally installed in the aquarium with a space between it and the wall of the aquarium (for example, Japanese Utility Model Publication No. 58-4.3937). .

(3) Problems to be Solved by the Invention However, if there is a space between the filtration case and the wall of the aquarium, as in the conventional case, the ornamental colors kept in the aquarium will enter that space. You may become stuck between the filter case and the wall.

In addition, with conventional systems, the entire amount of water sucked up by the suction means flows through the filter material, and the speed of water flowing through the filter material is too fast, resulting in the growth of aerobic microorganisms on the filter material. This makes it difficult for aerobic microorganisms to decompose organic matter, making it easier for filter media to become clogged.

The present invention has been made in view of the above circumstances, and provides a filtration device that allows the filtration case to be securely attached to the aquarium wall surface in close contact with the wall surface of the aquarium, and also promotes the propagation of aerobic microorganisms on the filtration material. The purpose is to provide

B0 Structure of the Invention (1) Means for Solving the Problems The 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, and It has a cross-sectional shape in which a back wall facing the corner side and a front wall facing the inner side of the tank are connected to form a closed cross section, and basically has a cylindrical shape extending vertically. A filtration case having a drain port provided at the top, a water intake port and an auxiliary water intake port below the water intake port at the bottom, and suction cups fixed to both mounting portions; a partition wall fixed to the filtration case to divide the filtration chamber into a filtration chamber and a water intake chamber connected to the auxiliary water intake; a partition wall fixed to the filtration case to divide the filtration chamber into an unpurified chamber connected to the water intake and a purification chamber connected to the water intake chamber; The filter includes a filter material installed in the filter case; and suction means for sucking up water in the purification chamber to the drain port.

(2) Function The angle formed by both attachment parts of the back wall of the filtration case is slightly larger than the corner of the aquarium, and since suction cups are fixed to both attachment parts, the front wall side edges of both attachment parts are fixed. The filtration case can be attached to the corner of the aquarium by bringing the parts into close contact with the two walls of the aquarium, thus closing the corner of the aquarium and both sides of the space between the filtration cases, reducing the color space. It is reliably prevented from getting inside. Furthermore, since the water intake chamber is also in communication with the purification chamber, it is possible to adjust the speed of water passing through the filter medium to an appropriate value.

(3) Example Hereinafter, an example of the present invention will be described with reference to the drawings. In FIG. 1, an aquarium 1 for raising ornamental colored fish such as goldfish, tropical fish, and saltwater fish is formed in a box shape. A filter case 3 is attached to a corner portion 2 of the aquarium 1 formed by two mutually orthogonal wall surfaces 1a and lb.

The water in the water tank 1 is sucked into the case 3, 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 made of, for example, synthetic resin and basically has a cylindrical shape, and its cross-sectional shape is such that it faces toward the corner 2. A back wall 6 arranged, and a front wall 7 arranged facing the inside of the aquarium 1.
are interconnected to form a closed cross section.

The back wall 6 is formed by connecting a pair of mounting parts 8 and 9 with a connecting part 10, and both the mounting parts 8 and 9 form an angle α between them.
is arranged at an angle slightly larger than the angle formed by the wall surfaces 1a and lb of the water tank 1, that is, 90 degrees, and the connecting portion 10 is formed in a circular arc shape convexly curved toward the front wall 7 side. On the other hand, the front wall 7 is formed in a trapezoidal 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 portions 8.9 on the back wall 6 are mutually connected. Polymerized and connected.

A top plate 11 is integrally provided at the upper end of the front wall 7 and closes the upper end of the filter case 3 when connected to the back wall 6.
A discharge pipe 12 is provided at approximately the center of the top plate 11 to form a drain port 13, extending upward with its inner end slightly protruding into the filter case 3, and bent inward of the water tank 1. It will be done. 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 in the center of the bottom plate 14 is provided. 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, support plates 17 and 18 are integrally attached to the upper and lower ends of the suction pipe 16, and have a shape corresponding to the cross-sectional inner surface shape of the filter case 3. In this case, support flanges 19 for supporting the support plate 18 are respectively protruded, and the suction pipe 16 is supported by the support flanges 19 with the upper support plate 17 in contact with the top plate 11. is installed inside the filter case 3. Moreover, in this attached state, the inner end of the discharge pipe 12 fits into the upper end of the suction pipe 16, and the suction pipe 16 communicates with the drain port 13.

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

At a plurality of locations, for example seven locations, spaced apart in the axial direction of the suction pipe 16, a pair of support arms 24. ．． 25 is provided to protrude, and a support arm 26 is provided to protrude from the back wall 6 toward the connecting portion 10 side.

A small diameter shaft portion 27 extending parallel to the suction pipe 16 is integrally provided at the tip of both support arms 24 and 25, respectively.
The tip of the support arm 26 is curved to correspond to the connecting portion 10 on the back wall 6, and has both mounting portions 8° 9 from both ends thereof.
A locking portion 28 formed to slightly extend parallel to the
are integrally provided, and the locking portion 28 abuts the inner surfaces of the connecting portion 10 and both mounting portions 8.9.

The filtering material 21 is formed in the shape of a rectangular cloak, and while its longitudinal ends are in contact with the support plates 17 and 18,
It is wrapped around the support arms 24, 25° 26 of the suction pipe 16. That is, the small diameter shaft portion 2 at the tip of both support arms 24°25
7, both ends of the filter medium 21 in the width direction are engaged with the locking portions 28 at the tips of the support arms 26.

By installing the suction pipe 16 with the filter material 21 attached in this way into the filter case 3, the inside of the filtration chamber 20 is divided into an unpurified chamber 22 and a purified chamber 23 over the entire length of the filtration chamber 20, and the suction tube 16 is The tube 16 will be placed within the purification chamber 23. At the bottom of the suction pipe 16, there is a purification chamber 23.
A suction port 29 communicating with the lower part is provided. Further, in the lower part of the front wall 7 of the filtration case 3, a plurality of water intake ports 30 are formed at intervals in the vertical direction in the form of slits so as to communicate with the lower part of the unpurified chamber 22.

Work 0 Bottom plate 14 of filtration case 3 and support plate 18 of suction pipe 16
A water intake chamber 31 is defined between the water intake chamber 31 and a plurality of slit-shaped auxiliary water intake ports 32 extending in the vertical direction are provided at the lower part of the front wall 7 to communicate with the water intake chamber 31.

The water intake chamber 31 and the auxiliary water intake port 32 are for guiding a small amount of water that has bypassed the filter material 21 to the suction pipe 16. When filtration is performed using only the filter case 3 as in this embodiment, the through hole 15 is closed by the cap 33. however,
It is also possible to share the suction pipe 16 with a bottom type filtration device, for example, and 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, on the outer surface of the reattachment portion 8.9 in the back wall 6, a pair of recesses 34 are provided vertically at intervals. Suction cups 35 are fixed to these recesses 34, respectively, with their tips projecting outward beyond the outer surface of the mounting portion 8.9.

In order to suck up water from the purification chamber 23 to the water port 13, the filtration case 3 is provided with a suction means 38, and this suction means 38 connects the suction pipe 16 and It consists of an air injection member 39 disposed at the bottom, 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 4
The hose 41 extends upward inside the suction pipe 16 and is pulled out of the water tank 1 through a take-out hole 43 provided at the top of the discharge pipe 12, and is connected to a pressurized air supply source 40 located outside the water tank 1. The other end is connected.

In the suction means 38, by supplying pressurized air from the pressurized air supply source 40, the air ejected from the air injection member 39 becomes fine bubbles and rises inside the suction pipe 16 and the discharge pipe 12, This creates an upward water flow in the suction pipe 16 and the discharge pipe 12.

Next, the operation of this embodiment will be described. When attaching the filter case 3 to the water tank 1, the back wall 6 is made to face the corner portion 2 so that the drain port 13 corresponds to the water surface in the water tank 1. In this state, first, as shown in Fig. 8 (al),
One mounting portion 8 on 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. 8 (bl), the other mounting portion 9 is pushed toward the other wall surface 1b in the direction of the arrow pb force so that the suction cup 35 is attracted to the wall surface 1b.

At this time, the angle α formed by the remounting parts 8 and 9 is
Since the angle b is larger than the angle formed by b, one of the mounting portions 8 presses its end on the front wall 7 side against the wall surface 1a, and the connecting portion 10 side separates from the wall surface 1a, and the suction cup 35 of the mounting portion 8 and the wall surface 13 The pressure in the closed space between the two 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 brings the end of the front wall 7 into contact with the wall surface 1b due to the attraction force of the suction cup 35 on the mounting part 8 side to the wall surface 1a, as shown in FIG. When brought into contact with each other, the connecting portion 10 side becomes separated from the wall surface 1b. As a result, in the same manner as described above: - The pressure in the sealed space between the suction cup 35 and the wall surface 1b is reduced, the suction force of the suction cup 35 is increased, and the attachment part 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, the ends of the attachment parts 8 and 9 on the back wall 6 on the front wall 7 side are on both wall surfaces la of the aquarium 1.

1b, and the space between the filter case 3 and the corner 2 is closed. Therefore, the viewing angle is reliably 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, water sucked into the unpurified chamber 22 from the water intake port 30 in the filtration case 3 flows through the filter material 21 and flows into the purification chamber 23 while being purified, and is further sucked up from the suction port 29. The water rises inside the pipe 16 and returns to the water tank 1 from the drain port 13.

At this time, since the suction port 29 is provided at the bottom of the suction pipe 16, the suction port 29 is
The total water pressure up to the depth is applied, and water can be efficiently sucked up, and the water flowing from the unpurified chamber 22 into the purification chamber 23 flows over the entire surface of the filter medium 21 and is efficiently purified.

On the other hand, as the rising water flow occurs in the suction pipe 16, the water flowing into the water intake chamber 31 from the auxiliary water intake port 32 also flows into the suction pipe 16.
It is sucked up at 6. 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 from the auxiliary water intake port 32 through the water intake chamber 31. Water flowing in from the port 30 flows through the filter medium 21 at an appropriate speed to be purified, and then flows back into the water tank 1 from the drain port 13. That is, 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.
This aerobic microorganism decomposes organic matter such as leftover food and feces in the viewing horn, thereby preventing clogging of the filter medium 21, and it is possible to provide chlorella and the like as live food for the viewing horn.

C8 Effects of the Invention As described above, the device of the present invention is made up of a pair of mounting parts that form a slightly larger angle than the corner of the aquarium, connected by a connecting part, and is arranged facing the corner. The back wall and the front wall facing the inside of the aquarium have a cross-sectional shape that is connected to form a closed cross section, and are basically formed into a cylindrical shape extending vertically, with a drain port provided at the top. a filtration case in which a water intake and an auxiliary water intake below the water intake are provided at the bottom, and suction cups are fixed to both mounting parts; a partition wall fixed to the filtration case to divide the filtration chamber into a water intake chamber; a filtration material installed in the filtration case to divide the filtration chamber into an unpurified chamber connected to the water intake port and a purification chamber communicated with the water intake chamber; ; Since it is equipped with a suction means for sucking up the water in the purification chamber to the drain port, the ends of the front wall side of both mounting parts are brought into close contact with the two walls of the aquarium, and the filter case is securely attached to the aquarium using a suction cup. The viewing angle is reliably prevented from getting between the filter case and the aquarium. Moreover, the purification chamber is also connected to the water intake chamber, and the water that bypasses the filter material is sucked up together with the water that has passed through the filter material and been purified, so the speed of water flowing through the filter material can be adjusted to an appropriate level. This promotes the growth of aerobic microorganisms and minimizes clogging of the filter media.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall perspective view, FIG. 2 is an enlarged view along line nn of FIG. 1, and FIG. Line sectional view, Figure 4 is IV of Figure 3
- Large cross-sectional view taken along the line IV Figure 5 is an enlarged cross-sectional view taken along the line V-V in Figure 3, Figure 6 is a cross-sectional view taken along the VI-Vl line in Figure 4, and Figure 7 is an enlarged cross-sectional view taken along the line VI-Vl in Figure 4. The enlarged exploded perspective view and FIG. 8 are cross-sectional views corresponding to FIG. 4 for explaining the procedure for attaching the filter case.

Claims (1)

[Claims] In a filtration device installed in a box-shaped aquarium, a pair of mounting parts forming a slightly larger angle than a corner of the aquarium are connected by a connecting part, and the back is placed facing the corner. The wall and the front wall facing the inside of the aquarium are connected to form a closed cross section, and are basically formed into a vertically extending cylindrical shape, with a drain port provided at the top. , a filtration case in which a water intake and an auxiliary water intake below the water intake are provided at the bottom, and suction cups are fixed to both mounting parts; a partition wall fixed to the filtration case to divide the filtration chamber into a chamber; a filtration material installed in the filtration case to divide the filtration chamber into an unpurified chamber connected to the water intake port and a purification chamber connected to the water intake chamber; A filtration device comprising: suction means for sucking up water in a purification chamber to a drain port;