JPS6242710A - Filter - Google Patents

Abstract

PURPOSE:To closely and surely fix the filter case to the inner side surface of a water vessel by using suction cups which are to be stuck on the two side faces constituting the corner part of the water vessel and respectively fixed to the outer faces of both fitting parts of a filter case. CONSTITUTION:When a filter case 3 is fixed to a water vessel 1, the rear wall 7 of the filter case 3 is confronted with the corner part 2 of the water vessel 1 and pressed on the corner pipe part side. Consequently, the side end parts of the front wall 8 at both fitting parts 9 and 10 of the rear wall 7 are abutted on the two side faces 1a and 1b of the water vessel and suction cups 4 are stuck on the two side faces 1a and 1b. Accordingly, both side parts of a space between the corner part 2 of the water vessel 1 and the filter case 3 is closed and the intrusion of ornamental fish into the space is prevented. In the filter case 3, the water, which has been passed through a filter medium 5 from a suction port 15 and filtered, is sent upward in a water passage 20 and returned into the water vessel 1 from a water discharge port 12.

Description

[Detailed description of the invention] A0 Purpose of invention (1) Industrial application field 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, the aquarium fish kept in the aquarium may enter that space. Sometimes you get stuck and can't move.

The present invention has been made to solve these 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.

B0 Structure of the Invention (Means for Solving the Problem of 13 Points) The filtration device of the present invention is constructed by connecting a pair of mounting portions forming a slightly larger angle than the corner portions of the aquarium with a connecting portion. The tank has a cross-sectional shape in which a back wall facing the tank side and a front wall having a water intake port facing the inside of the tank are connected to form a closed section, and a drain port is provided at the upper end. a filtration case basically formed in the shape of a cylinder with a bottom made of an elastic material; fixed to the outer surface of both attachment parts of the back wall so as to be adsorbed to the two sides of the aquarium constituting the corner part; A filtration member is housed in the filtration case biased toward the front wall to define a conduit that extends over the entire length of the filtration case between the suction cup and the inner surface of the back wall; and an air injection tube located at the bottom within the waterway.

(2) Function When attaching the filtration case to the aquarium, the back wall of the filtration case faces the corner of the aquarium and is pressed against the corner. 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. Moreover, since the filter case is made of an elastic material, both attachment parts tend to separate from the two sides of the aquarium.

This allows the suction cup to exert greater suction power and securely fix the filter case to the aquarium. In this state, by supplying pressurized air from the pressurized air source into the air injection tube, an upward water flow is generated in the headrace, and the water filtered by the filter member rises inside the headrace and drains out. and then returned to the aquarium.

(3) Example An example of the present invention will be described below with reference to the drawings. First, in FIG. 1, goldfish and tropical fish are shown.

An aquarium 1 for raising ornamental fish such as saltwater fish is formed into a five-box shape, and a corner portion 2 formed by two mutually perpendicular side surfaces 1a and 1b is provided with the filter of the present invention. The filter case 3 of the device is installed. This filter case 3
Pressurized air is supplied from an air pump P installed outside the aquarium 1 as a pressurized air source, which causes an upward water flow within the filtration case 3, which is sucked into the filtration case 3 from within the aquarium 1. After the water is filtered, it is returned to the aquarium 1.

Referring to FIGS. 2, 3, and 4, the filtration device includes a filtration case 3, a plurality of suction cups 4, a filtration member 5, and an air injection cylinder 6.

The filtration case 3 is basically formed of an elastic material such as a synthetic resin into a bottomed cylindrical shape, and its cross-sectional shape includes a back wall γ disposed facing the corner 2 side, and a water tank 1. The front wall 8 is arranged facing the inner side of the front wall 8 and is connected to each other to form a closed cross section.

The back wall 7 is formed by connecting a pair of mounting parts 9 and 10 with a connecting part 11, and the two numbered parts 9 and 10 are arranged so that the angle α between them is the same as the side surface 1a*1'b of the aquarium 1. The connecting portion 11 is arranged at an angle slightly larger than 90 degrees, and the connecting portion 11 is formed in an arc shape convexly curved toward the corner portion 2 side. On the other hand, the front wall 8 is formed into a trapezoid shape that narrows toward the inside of the aquarium 1.

A drain port 12 that opens toward the inside of the water tank 1 is provided at the upper end of the filter case 3, and an auxiliary water intake port 14 is provided in the bottom wall 13 of the filter case 3. Also, there is a space between the top and bottom of the lower part of the front wall 8 of the filter case 30. The plurality of slit-shaped water intake ports 15 mentioned above are drilled.

On the other hand, on the back wall 7 of the filter case 3, the numbered portion 9.1
A pair of recesses 16 are provided on the outer surface of 0 at an interval t in the vertical direction, and a housing groove 1T is provided in the connecting portion 11. Moreover, the accommodation groove 1γ 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 opened upward, and the lower end of the accommodation groove 17 is opened upward. 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 cups 4 are fixedly installed in each of the recesses 16 of the numbered parts 9 and 10, and the base of the suction cups 40 is attached to the mounting parts 9 and 1.
0 is engaged. Moreover, the tip of each suction cup 4 has a mounting part 9°1
Projects outward from the outer surface of 0.

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, and is housed and arranged in the filter case 3 so as to be biased toward the front-wall 8 side. This results in
Inside the filtration case 3, a water conduit 20 spanning the entire length of the filtration case 3 is defined between the back wall 7 and the filter member 5. The upper end of this water conduit 20 is connected to the drain port 12, and the lower end is connected to the auxiliary water absorption port. Connects to mouth 14.

[7 It is disposed at the lower part of the water conduit 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, extends downward within the housing groove 1γ, and is connected to the connecting pipe 21 of the air injection cylinder 6.

Next, to explain the operation of this embodiment, when installing the filter case 3 to the aquarium 1, the drain port 12 should correspond to the water surface in the aquarium 1, and the back wall 7 should face the corner 2. In this state, press the filter case 3 against the corner portion 3 side.

As a result, the front wall 8 is attached to the numbered portion 9.10 of the back wall γ.
The side ends abut against both sides 1a * 1b of the water tank 1, but the filtration case 3 is bent by bending the mounting parts 9 and 10.
When pressed further, each suction cup 4 is pressed against both side surfaces 1a+1b. Then, when the filter case 1 is released, each mounting part 9.10 has both sides 1a * 1 due to its elasticity.
b, each suction cup 4 and both sides 1a.

The pressure in the sealed space between 1b is reduced, the adsorption force of each suction cup 4 is increased, and the filter case 3 is reliably attached to the water tank 1.

In this attached state, both numbered portions 9. on the back wall 7.
The end portions on the front wall 8 side of 10 are in close contact with both side surfaces 1 a m1 b of the aquarium 1 , and 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 housing groove 17 provided in the back wall 7, it is possible to bring the back wall 7 closer to the corner 2, and the space between the corner 2 and the back wall 7 is reduced. It can be made smaller, and this also prevents ornamental fish from entering between the filter case 3 and the aquarium 1.

When pressurized air is supplied to the air injection tube 6 from the air pump P with the filter case 3 attached to the water tank 1, the air injection tube 6
The bubbles generated in this step rise within the headrace 2o, and an upward water flow is generated within the headrace 20. This rising water flow is formed by water that passes through the filter member 5 from the water intake port 15 and flows into the water conduit 20, and water that flows into the water conduit 20 from the auxiliary water intake port 14.

Water flowing in from the water intake port 15 passes through the filter member 5 at an appropriate speed to be purified, and then flows back into the water tank 1 from the drain port 12. . That is, 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 improve the ornamental viewing. It is possible to decompose organic matter such as leftover food and feces of fish to prevent clogging of the 1 m long member 5, and to provide chlorella and the like as live food for ornamental fish.

C"0 Effects of the Invention 5. The device of the present invention is constructed by connecting a pair of mounting parts forming a slightly larger angle than the corner of the aquarium with a connecting part, and facing the corner. It has a cross-sectional shape in which the back wall to be disposed and the front wall having a water intake port and facing inward of the tank are connected to form a closed cross section, and has a drain port at the upper end and is made of elastic material. a filtration case basically formed into a cylindrical shape with a bottom; a suction cup fixed to the outer surface of both attachment parts of the back wall to adsorb to the two sides of the water tank forming the corner part; A filtration member is housed in the filtration case biased towards the front wall to define a water conduit extending over the entire length of the filtration case between the inner surface of the back wall and the filter member; The filter case can be reliably attached to the aquarium by suction cups in close contact with the two sides of the aquarium, which are the ends of the attachment part on the front wall side, and the aquarium fish can enter. Water in the aquarium can be filtered without creating a space between the aquarium and the aquarium.Furthermore, the filtration case is cylindrical with a bottom, and the conduit in the filtration case also serves as a purification chamber. Therefore, the overall shape is simple, and it can be attached to the aquarium with a clean appearance by giving a sense of unity with the corners of the aquarium.

[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 R cross-sectional side view of the filter case, and FIG. 4 is an enlarged front view of the filter case. Figure IV-
There is a large sectional view taken along the IV line.

Claims (4)

[Claims] (1) A filtration device installed in a box-shaped aquarium, which consists of a pair of mounting parts that form a slightly larger angle than the corners of the tank and are connected by a connecting part, and The water tank has a cross-sectional shape in which a back wall facing the water tank and a front wall facing the inner side of the water tank having a water intake port are connected to form a closed cross section, and has a drain port at the upper end. a filtration case basically formed into a cylindrical shape with a bottom made of an elastic material; and suction cups fixedly attached to the outer surfaces of both attachment parts of the back wall to adsorb to the two sides of the water tank forming the corner parts; In order to define a water conduit extending over the entire length of the filtration case between the inner surface of the back wall,
a filtration member stored in the filtration case biased toward the front wall;
A filtration device comprising: an air injection tube connected to a pressurized air source and disposed at a lower portion within the water conduit. (2) The filtration device according to claim 1, wherein the bottom of the filtration case is provided with an auxiliary water intake port that communicates with the water conduit. (3) An accommodation groove for accommodating a hose connecting the air injection tube and the pressurized air source is provided on the outer surface of the connection part of the back wall and extends vertically from the top end of the filter case to near the bottom; 2. The filtration device according to claim 1, wherein the lower end wall of the housing groove is provided with a hole for connecting an air injection cylinder and a hose to each other. (4) A recess is provided on the outer surface of the mounting portion of the back wall, and the suction cup is fixed in the recess with its tip protruding beyond the outer surface of the mounting portion. The filtration device described in (1).