WO1998025451A1

WO1998025451A1 - The excrements filtering device for water tank

Info

Publication number: WO1998025451A1
Application number: PCT/KR1996/000237
Authority: WO
Inventors: Man Ho Song
Original assignee: Man Ho Song
Priority date: 1996-12-10
Filing date: 1996-12-10
Publication date: 1998-06-18
Also published as: AU1072397A

Abstract

The structure of the previous water tank has a bottom sealed tightly, so that excrements are not filtered but accumulated within a sand layer, thereby accelerating excrements decomposition, deteriorating water quality. In order to solve this problem, provided that the structure of the water tank consists of fish-bowl room (A) that contains fishes, a drain room (B) that sends water and excrements to a dry-type filtration room, a dry-type filtration room (C) that filters water and excrements by means of the dry-type, a wet-type filtration room (D) that filters water and excrements by means of the wet-type and sends them back to the fish-bowl room for the circulation, and a transmission room (E) that transmits heat from the surface of the fish-bowl room (A) by a convex net plate (10) and install a trumpet structure (12) underneath of the convex net plate (10), so as to allow water and excrements to go down below. This excrements filtering device for a water tank is used for the aquarium tank and livefish tank.

Description

DESCRIPTION

[ Title of Invention ]

The excrements filtering device for water tank

[ Technical Field ]

The technical field of the present invention was classified as A01K of International Patent Classification.

In particular, the device of the present invention is for filtering excrements from aquarium tank, livefish tank.

[ Background Art ] The structure of the previous water tank has a bottom sealed tightly, so that excrements are not filtered but accumulated within a sand layer, thereby accelerating excrements decomposition, deteriorating water quality. In this way, the previous water tank has a structural problem and a problem of a limited filtering area, by which fishes tend to get sick or dead.

The bottom of a water tank keeps a thick layer of sand in which water does not circulate into, thus, excrements and dregs get accumulated, causing deterioration of water quality. Previously an absorption device has been used to remove excrements accumulated as such within the sand layer. Yet, this method has a drawback of inconvenience in absorbing particles of excrements one by one. It is also a very ineffective means of water tank maintenance, requiring much time and efforts.

Internal as well as external filters also does not improve water quality effectively because they only circulate water of the tank and excrements remain unfiltered within the sand layer.

For the previous water tank, it is required, upon water change, to take fishes and water plants out of the tank, to wash sand, pebbles and stones blemished with excrements, and then return them back to the tank with fresh water in. In doing so, there arises lots of complicated and delicate problems as the whole procedure requires much of time, efforts, and manpower, setting the right water temperature, meeting the requirements one by one by adding chemicals respectively. Besides, there are problems that tropical fishes, which get accustomed to the previous water condition, die out as they sometimes do not adjust to the changed water condition. This problem particularly has been quite serious in case of a water tank with a large size. In addition, in case of livefish tank as installed in raw fish restaurant, fishes, although they must stay as fresh, often get spoiled, causing the problem of public hygiene and health owing to the deterioration of water quality from excrements accumulated down below. To prevent such problems requires such efforts and time to keep water clean as supplying fresh water on a steady base, which incur a loss in economic term.

As per the indoor type aquarium tank for tropical fishes, water temperature maintenance during winter season, requires a great deal of economic burden by employing heating devices or underwater heater which uses a heavy load of fuel and electricity to keep temperature at a proper level.

[ Disclosure of Invention ]

[ Problems to be solved ] The present invention is to solve problems of excrements filtration in water tank as mentioned above.

It divides the structure of water tank into the fish-bowl room, the drain room, the dry-type filtration room, the wet- type filtration room, and the transmission room, among which the bottom of fish-bowl room is, as illustrated in figure 1 , forming a convex net plate so as water and excrements to go down below. To solve the problem of deterioration of water quality caused by the excrement not to be filtered but accumulated within the sand layer in the previous water tank with a bottom closed tightly, the convex net plate is forming the inside of the sand layer, for which the sand layer is much thinner than what it looks like, thus water and excrements are swiftly driven out by water pressure into the dry-type filtration room and the wet-type filtration room through the sand layer and convex net plate, and thereby get filtered effectively.

At the below the convex net plate of the fish-bowl room, a trumpet structure is to be installed, so as water and excrements to go through by way of a drain room installed downward and filtered in the dry-type filtration room.

The air tube is to be connected to the convex net plate circulation pipe of the fish-bowl room and air pump is to be operated. In this way, internal circulation at the bottom of the fish-bowl room would be effectuated, thus excrements promptly get driven downward by facilitating the formation of water way within the sand layer. In addition, the bottom of a dry-type filtration room is also to form a net plate.

So excrements with water coming down from the fish-bowl room would be primarily filtered as passing through a filtering layer arranged the inside of the dry-type filtration room. Then, the water again goes down into the wet-type filtration room installed below.

A pipe and valve are installed at the trumpet structure to drain water from the fish-bowl room downward.

And to remove floating matters in the fish-bowl room, another pipe is to be installed right through the convex net plate straight down to the inside of the trumpet structure from the fish-bowl room with a valve at the lower part of the pipe.

For the wet-type filtration room, a net plate is to form the floor of the room, in which two horizon plates are vertically installed, creating subrooms with the wet-type filtering materials placed in between.

In this way, water and excrements coming down would be filtered by passing through the wet-type filtering materials.

Down below the wet-type filtration room, the transmission room is formed with its bottom closely in contact with the external bottom area, so as to transmits heat, when supplied from outside, to the transmission room, which in turn, increases the water temperature of the tank.

In addition, two pipes of transmission room equipped with valve at the upper part are to vertically go right through the inside of the drain room, the dry-type filtration room, and the wet-type filtration room, so as water to be supplied to the transmission room.

The previous water tank, upon water change, requires much of time, efforts, and manpower, such as taking fishes and water plants out of the tank, washing sand, pebbles and stones blemished with excrements, returning them back to the tank with fresh water, setting the right water temperature with meeting the requirements one by one by adding chemicals respectively. This whole procedure that is delicate as well as complicated would be bypassed by using this invention.

To solve such difficulties, a feed water pipe equipped with a valve at the upper part is horizontally placed right into the drain room, so as water to be supplied into the wet-type filtration room.

Upon changing water, all the difficulties in case of the previous tank type are to be solved by draining out water from the wet-type filtration room simply by connecting a hose to the valve, and then by supplying and circulating new water between the fish-bowl room and the wet-type filtration room. In between the fish-bowl room and the wet-type filtration room, a buoyancy ball with its upper part made of rubber is to be installed, so as water coming down from the fish-bowl room to be automatically and constantly controlled as per the amount of water intaken from the wet-type filtration room to the fish-bowl room.

All this function is done by the upward movement of the ball in accordance with the water level within the wet- type filtration room. Water and excrements coming down from the fish-bowl room are going through the drain room, the dry-type filtration room, and the wet-type filtration room by turn and filtered accordingly.

The water filtered as such is to be vertically sent back to the fish-bowl room through a circulation pipe installed straight down from the fish-bowl room to the wet-type filtration room with an underwater motor at the lower part. o As illustrated in figure 6, 7, this excrements filtering device for water tank is able to efficiently filter excrements within the sand layer and floating matters in the fish-bowl room. Draining and supplying water are easily done by connecting a hose to the valve in case of changing water, which solve the s problem of deterioration of water quality previously resulted from excrements remained within the sand layer. Moreover, this filtering device has a very reasonable structure to efficiently solve previous problems that are painstaking and require all the efforts, time and labor work in changing water, o moving fishes, water plants, sand, pebbles, stones, etc.

The followings are explanations in detail along with the attached figures.

[ Measures to solve the problem ] 5 Provided that the structure of the water tank consists of fish-bowl room (A) that contains fishes, water plants, sand, pebbles, stones, a drain room (B) that sends water and excrements to a dry-type filtration room, a dry-type filtration room (C) that filters water and excrements by means of the o dry-type, a wet- type filtration room (D) that filters water and excrements by means of the wet-type and sends them back to the fish-bowl room for the circulation, and a transmission room (E) that transmits heat from the surface of the external floor to the inside of the water tank, as illustrated in figure 6, 7, form a floor of the fish-bowl room (A) by a convex net plate (10) and install a trumpet structure (12) underneath of the convex net plate (10). Set up a convex net plate circulation pipe (22) on the convex net plate (10) and connect an air tube (24) to the convex net plate circulation pipe (22).

To the trumpet structure (12), install a trumpet structure drain pipe (14), a fish-bowl room drain valve (16), and a trumpet structure valve (18). As illustrated in figure 7, set up a floating matter drain pipe (26) vertically right through the inside of the fish-bowl room (A), the trumpet structure (12) and up to the above of the convex net plate (10), and install a floating matter drain valve (70) at the lower part of the pipe. Upon forming a drain room (B) from the trumpet structure (12) to the downward, as illustrated in figure 6, 7, form a floor of the drain room (B) with a drain room net plate (88) and form drain outlet (58) by inserting pipes to the hole. Place a rubber stick fixing rod (108) at the center of the drain room (B) and form two holes on the rubber stick fixing rod (108), and then as illustrated in figure 7, connect drain controlling rubber stick (44), (72) with drain controlling buoyancy ball (46), (74) in between the holes, so as to control the draining of the fish-bowl room (A) as outlets of the trumpet structure drain pipe (14) and the floating matter drain pipe (26) get closed by buoyancy according to the water level in the wet-type filtration room (D). As illustrated in figure 6, an air pump room (54) install in the drain room (B).

Upon forming a dry-type filtration room (C) from the drain room (B) downward, as illustrated in figure 3, put a dry-type filtration room net plate (82) for a floor so that water and excrements coming down from the drain room (B) are to be filtered through a layer of the dry-type filtering materials (110) located in the dry-type filtration room (C).

Also, place a dry-type filtration room support stand (84) underneath of the filtration room (C) so as to pull out the main body of the filtration room (C), thus, forming the dry-type filtration room (C) in such a way that one can clean or change the dry-type filtering materials (110).

Upon forming a wet-type filtration room (D) from the dry-type filtration room (C) to the downward, as illustrated in figure 4, place a wet-type filtration room net plate (86) that remains at a constant hight from the floor.

Then, vertically, set up the horizon plate (52), and at each side of the wet-type filtration room net plate (86), form a room of the wet-type filtering materials (112) whose layer would consists of detailed filtration steps, such as physical filtration, biological filtration, absorptive filtration, and chemical filtration.

Install a circulation pipe (28) vertically passing right through the fish-bowl room (A), the convex net plate (10), the trumpet structure (12), the drain room (B), and the dry-type filtration room (C) and the wet-type filtration room (D). Then, connect an underwater motor (48) to the lower part of circulation pipe (28) and also install a circulation pipe valve (32) and a wet-type filtration room drain valve (34) to the circulation pipe (28), and place horizontally a feed water pipe (36) equipped

5 with a feed water valve (38) installed at the upper part into the valve fixing rod (1 18) of drain room, so as water to be supplied into the wet-type filtration room.

Upon forming a transmission room (E) from the wet-type filtration room (D) downward, place the floor of the transmission room (E) ιo tightly close to the external floor, so as to transmit heat to the water tank efficiently as the heat is supplied from the outside. Also, place transmission room supplying pipes (40) from the drain room (B) to the transmission room (E) with transmission room supplying valves (42) installed at the upper part, which i5 enables water to be supplied to the tightly sealed transmission room (E).

This device is, as illustrated in figure 6, 7, designed for excrements filtration of water tank with an action of water circulation.

2o The followings are the details of how the present invention works.

[ How it works ] As illustrated in figure 6, 7, upon the operation of the 5 underwater motor (48) and the air pump (80) with the opening of the trumpet structure valve (18) and the floating matter drain valve (70), water and excrements in the fish-bowl room (A) would be drained out due to the water pressure through the trumpet structure drain pipe (14) located underneath of the 0 trumpet structure (12). At this moment, water and excrements are to be passing through a thin layer of sand which has the convex net plate (10) inside. In turn, they are driven into the dry- type filtration room (C) through the drain room (B) and drain outlet (58) formed underneath.

Along with that, water and the floating matters at the upper part of the fish-bowl room (A) shall be driven into the floating matter drain pipe (26) located at the water level of the fish-bowl room (A), and coming down to the dry-type filtration room (C) via the drain outlet (58) of the drain room (B) formed downward. All those water, excrements, and floating matters coming down to the dry-type filtration room (C) are to be filtered as passing through layers of the dry-type filtering materials (1 10) arranged in the room.

Water filtered as such again goes down to the wet-type filtration room (D) through the dry-type filtration room net plate (82) and are filtered further through the wet-type filtering materials (1 12) arranged within the room in terms of detailed filtration steps. Then, water, finally, from the underneath of the wet-type filtration room net plate (86), goes back to the fish-bowl room (A) through a circulation pipe (28) by the underwater motor (48). Water and excrements of the water tank can be efficiently filtered by this vertical circulation from the fish-bowl room (A), the drain room (B), the dry-type filtration room (C) and the wet-type filtration room (D).

Water level of the fish-bowl room (A) and the wet-type filtration room (D) is to be controlled by the drain controlling buoyancy ball (46), (74) located in the wet-type filtration room (D). When the water level of the wet-type filtration room (D) gets high, rubber knobs of the drain controlling rubber stick (44), (72) are to close the outlet of the trumpet structure drain pipe (14) and floating matter drain pipe (26) by the buoyancy functioning. When the water level gets low, the drain controlling buoyancy ball (46), (74) goes down, draining water from the fish-bowl room (A) down to the drain room (B), which controls water flowing from the fish-bowl room (A) all the way down to the wet- type filtration room (D), keeping a water level constant.

If one closes the wet-type filtration room drain valve (34) installed at the circulation pipe (28) and opens the circulation pipe valve (32), the circulation pipe (28) would go through straight from the fish-bowl room (A) all the way down to the wet-type filtration room (D) and water shall be circulated by the underwater motor (48) from the fish-bowl room (A), the drain room (B), the dry-type filtration room (C) and the wet-type filtration room (D). On the contrary, if one closes the circulation pipe valve (32) and opens the wet-type filtration room drain valve (34), water only within the wet-type filtration room (D) will be drained out through the wet-type filtration room drain valve (34). If one closes the fish-bowl room drain valve (16) installed at the trumpet structure drain pipe (14) and opens the trumpet structure valve (18), water and excrements of the fish-bowl room (A) will be coming down due to the water pressure.

On the contrary, if one closes the trumpet structure valve (18) and opens the fish-bowl room drain valve (16), water only within the fish-bowl room (A) shall be drained out through the fish-bowl room drain valve (16). The followings are the effects of this invention in detail. [ Effects ] In case of the previous type water tank, the floor is tightly sealed, which causes a progressive deterioration of water quality since excrements are remained unfiltered and accumulated within a sand layer, thereby accelerating a decomposition process. Yet, in this invention, a convex net plate (10) forms the inside of the sand layer, so the layer look the same as the previous type in regard to thickness, but it is actually thinner and as illustrated in figure 1 , 2, the convex net plate (10) is placed within the layer.

In this way, excrements are swiftly passing through the thin layer. And, water constantly flows down due to the water pressure, creating water ways in the thin layer since the floor of the fish -bowl room (A) is not sealed off.

This, in turn, facilitates water promptly to pass through the layer and to be filtered in the wet-type filtration room (D) and the dry- type filtration room (C) underneath. Therefore, the feature above can improve the problem of water deterioration caused by the accumulation of excrements in the sand layer without being filtered.

Also, it can enhance the water quality by easily cleaning and changing wet-type filtering materials (1 12) and the dry-type filtering materials (110) at any time.

The present invention is designed in such way that water in the fish-bowl room (A) and the wet-type filtration room (D) can be blocked or connected by the trumpet structure valve (18) and the circulation pipe valve (32), and even it is possible to drain them into outside. The most desirable way of changing water is not to provide sudden water changes to fishes but to be done within the water environment to which fishes already get accustomed. For doing so, by connecting a hose to the water supplying and the wet-type filtration room drain valve (34), the feed water λ'alve (38), water is easily to be drained out from the wet- type filtration room (D), which is to be refilled with fresh water. Thus, this new invention can achieve easy and convenient maintenance of the water tank by removing all the problems of complication and inconvenience of the previous type water tank, which require much of time and labor work in taking out fishes, plants, cleaning sand, pebbles, stones, etc., returning them back with fresh water, adjusting water temperature, and meeting each requirements by adding chemicals respectively. The floor of the transmission room (E) is so closely faced with the external floor that the heat, if provided from the external floor, is to be quickly transmitted to the room (E), and to all over the water tank, in turn, increasing water temperature. Even during the season with temperature going down, water temperature is to be maintained at a proper level for tropical fishes only by the heat emitting from the living room floor. In this way, the present invention has an economic effect by curtailing the fuel and electricity consumed in employing heating devices or underwater heater.

Specially, in case of the water tank with a large number of tropical fishes, the heating efficiency is to be achieved by heating the floor in terms of a boiler. [ Brief Description of Drawings ]

Figure 1 is a perspective view illustrating the convex net plate of the present invention for passing through water and excrements from aquarium tank downward.

Figure 2 is a cross-sectional view illustrating the inside of sand layer with the convex net plate of the present invention, and the operation of the drain controlling buoyancy ball for controlling the flow of water coming down from the fish-bowl room.

Figure 3 is a cross-sectional view illustrating the dry-type filtration room of the present invention.

Figure 4 is a cross-sectional view illustrating the wet-type filtration room of the present invention. Figure 5 is a cross-sectional view illustrating the wiring of device according to the present invention.

Figure 6 is a cross-sectional view illustrating the circulation of water based on the structure and operation according to the present invention. Figure 7 is a ight side cross-sectional view illustrating the circulation of water based on the structure and operation according to the present invention.

Figure 8 is a perspective view illustrating the front side of aquarium tank according to performance example 1 of the present invention.

Figure 9 is a perspective view illustrating the back side of aquarium tank according to performance example 1 of the present invention.

Figure 10 is a cross-sectional view illustrating the circulation of water based on the structure of aquarium tank and operation according to performance example 2 of the present invention. Figure 1 1 is a cross-sectional view illustrating the circulation of water based on the structure of aquarium tank and operation according to performance example 3 of the present invention. Figure 12 is a cross-sectional view illustrating the circulation of water based on the structure of aquarium tank and operation according to performance example 4 of the present invention. Figure 13 is a cross-sectional view illustrating the circulation of water based on the structure of livefish tank and operation according to performance example 5 of the present invention. Figure 14 is a cross-sectional view illustrating the circulation of water based on the structure of livefish tank and operation according to performance example 6 of the present invention. Figure 15 is a cross-sectional view illustrating the circulation of water based on the structure of livefish tank and operation according to performance example 7 of the present invention. Figure 16 is a cross-sectional view illustrating the circulation of water based on the structure of livefish tank and operation according to performance example 8 of the present invention. Figure 17 is a perspective view illustrating the horizon net plate of the present invention for passing through water and excrements from livefish tank downward.

[ Explain of symbols to the main parts in figure ] A : the fish-bowl room B : the drain room C : the dry-type filtration room D : the wet-type filtration room E : the transmission room F : sand 0 : the convex net plate 2 : the trumpet structure 4 : the trumpet structure drain pipe 6 : the fish-bowl room drain valve 8 : the trumpet structure valve 0 : the water cap 2 : the convex net plate circulation pipe 4 : the air tube 6 : the floating matter drain pipe 8 : the circulation pipe 0 : the lamp room wiring pipe 2 : the circulation pipe valve 4 : the wet-type filtration room drain valve 6 : the feed water pipe 8 : the feed water valve 0 : the transmission room supplying pipe 2 : the transmission room supplying valve 4 : the drain controlling rubber stick 6 : the drain controlling buoyancy ball 8 : the underwater motor 0 : the automatic water temperature controller 2 : the horizon plate 4 : the air pump room 6 : the air pump room wiring pipe 8 : the drain outlet 0 : the electron water temperature meter 2 : the lamp room 4 : the glass : the trumpet structure support stand : the armor side : the floating matter drain valve : the drain controlling rubber stick : the drain controlling buoyancy ball : the armor side door : the drain room door : the air pump : the dry-type filtration room net plate : the dry-type filtration room support stand : the wet-type filtration room net plate : the drain room net plate : the lamp room door : the PG lamp π : the PG lamp III : the lighting lamp : the underwater motor switch : the PG lamp π switch : the PG lamp III switch : the lighting lamp switch : the power plug : the rubber stick fixing rod : the dry-type filtering materials : the wet-type filtering materials : the floating matter filtering cap : the emergency drain outlet : the valve fixing rod : the horizon net plate : the horizont net plate circulation pipe 124 : the underwater motor plug 126 : the air pump plug 128 : the air pump room electric outlet 130 : the electric connection part 132 : the circulation pipe holes 134 : the feed water pipe holes

[ Best Mode for Carrying out the Invention ]

10

[ Performance example 1 ] [ Aquarium tank in accordance with this invention ] Provided that the structure of the water tank consists of fish-bowl room (A) that contains fishes, water plants, sand, pebbles, stones, a drain room (B) that sends water and excrements to a dry-type filtration room, a dry-type filtration room (C) that filters water and excrements by means of the dry- type, a wet-type filtration room (D) that filters water and excrements by means of the wet-type and sends them back to the fish-bowl room 0 for the circulation, and a transmission room (E) that transmits heat from the surface of the external floor to the inside of the water tank, as illustrating in figure 1 , form a floor of the fish-bowl room (A) by a convex net plate (10) and install a trumpet structure (12) underneath of the convex net plate (10). 5 Set up a convex net plate circulation pipe (22) on the convex net plate (10) and connect an air tube (24) to the convex net plate circulation pipe (22).

To the trumpet structure (12), install a trumpet structure drain pipe (14), a fish-bowl room drain valve (16), and a trumpet structure valve (18).

As illustrated in figure 7, set up a floating matter drain pipe (26) vertically right through the inside of the fish-bowl room (A), the trumpet structure (12) and up to the above of the convex net plate (10), and install a floating matter drain valve (70) at the lower part of the pipe.

Upon forming a drain room (B) from the trumpet structure (12) to the downward, As illustrated in figure 6, 7, form a floor of the drain room (B) with a drain room net plate (88) and form drain outlet (58) by inserting pipes to the holes. Place a rubber stick fixing rod (108) at the center of the drain room (B) and form holes on the rubber stick fixing rod (108), and then as illustrated in figure 7, connect the drain controlling rubber stick (44), (72) with the drain controlling buoyancy ball (46), (74) in between the holes, so as to control the draining of the fish-bowl room (A) as outlets of the trumpet structure drain pipe (14) and the floating matter drain pipe (26) get closed by buoyancy according to the water level in the wet-type filtration room (D).

As illustrated in figure 6, an air pump room (54) install in the drain room (B).

Upon forming a dry-type filtration room (C) from the drain room (B) downward, as illustrated in figure 3, ptit a dry- type filtration room net plate (82) for a floor so that water and excrements coming down from the drain room (B) are to be filtered through a layer of the dry-type filtering materials (110) located in the dry -type filtration room (C). Also, place a dry- type filtration room support stand (84) underneath of the filtration room (C) so as to pull out the main body of the filtration room (C), thus, forming the dry-type filtration room (C) in such a way that one can clean or change dry-type filtering materials (110). Upon forming a wet-type filtration room (D) from the dry-type filtration room (C) to the downward, as illustrated in figure 4, place a wet-type filtration room net plate (86) that remains at a constant hight from the floor. Then, vertically, set up the horizon plate (52), and at each side of the wet-type filtration room net plate (86), form a room of the wet-type filtering materials (112) whose layer would consists of detailed filtration steps, such as physical filtration, biological filtration, absorptive filtration, and chemical filtration. Install a circulation pipe (28) vertically passing right through the fish-bowl room (A), the convex net plate (10), the trumpet structure (12), the drain room (B), and the dry-type filtration room (C) and the wet-type filtration room (D).

Then, connect an underwater motor (48) to the lower part of circulation pipe (28) and also install a circulation pipe valve (32) and a wet-type filtration room drain valve (34) to the circulation pipe (28), and as illustrated in figure 6, 9, place horizontally a feed water pipe (36) equipped with a feed water valve (38) installed at the upper part into the valve fixing rod (118) of drain room (B), so as water to be supplied into the wet-type filtration room (D).

Upon forming a transmission room (E) from the wet-type filtration room (D) downward, place the floor of the transmission room (E) tightly close to the external floor, so as to transmit heat to the water tank efficiently as the heat is supplied from the outside. Also, place transmission room supplying pipes (40) from the drain room (B) to the transmission room (E) with transmission room supplying valves (42) installed at the upper part, which enables water to be supplied to the tightly sealed transmission room (E).

In regard to the power supply and wiring, as illustrated in figure 5, an electric wire is to run from the power plug (106) to the top of the drain room (B) right through the inside of the armor side (68), and this wire is to be spitted into two lines in between the trumpet structure (12) and trumpet structure support stand (66).

The first line connected to the inside of the air pump room (54) through the hole formed at the upper part of the trumpet structure support stnad (66) and the second line run through the lamp room wiring pipe (30) and wired within the inside of the lamp room (62).

The air tube (24) connected to the lower part of the convex net plate circulation pipe (22) is to run downward through the inside of the lamp room wiring pipe (30) and to be linked to the air pump (80) being wired via the inside of the air pump room (54) passing through the hole formed at the top of the trumpet structure support stand (66).

The PG lamp π (92), the PG lamp m (94), the light lamp (96) are to be installed within the lamp room (62). And the PG lamp π switch (100), the PG lamp in switch (102), the light lamp switch (104), the underwater motor switch (98), the electron water temperature meter (60) are to be installed at the out side of the lamp room.

The floating matter filtering cap (1 14) is to cover the upper part of the floating matter drain pipe (26), the water cap (20) is to cover the lower part of trumpet structure drain pipe (14).

So as illustrated in figure 8, the doors (76), (78), (90) are to be placed to the armor side (68), the drain room (B), and the lamp room (62).

Set up the glass(64) to four sides of the fish-bowl room (A). Aquarium tank formed as above has a thick outlook of the sand layer as illustrated in figure 2, the sand layer is thinner in actuality with having the convex net plate (10) inside, which enables w^rater and excrements easily to pass through.

In doing so, the hole size of the convex net plate (10) is to be about 2 — 3mm, so as to pass only water but not to let sand go through.

In case pebbles are used for the bottom of the fish-bowl room (A), the hole size would be about 5~ 6mm.

Water flow drained downward from the fish-bowl room (A) is to be controlled by the trumpet structure valve (18), the floating matter drain valve (70), installed at the trumpet structure drain pipe (14) and the floating matter drain pipe (26) respectively. s the valves (18), (70) are being opened, water flow gets larger and faster, enabling to form a water way wider in the sand layer.

In this way, filtration of water and excrements are to be selectively adjusted in accordance with the requirements of rearing fishes.

In case of the aquarium tank in accordance with this invention, because of the convex net plate (10) formed in the sand layer, excrements in the layer are to be swiftly driven into the dry-type filtration room (C) and filtered accordingly, and the main body of the dry-type filtration room (C) can be detached so as to clean and change the dry- type filtering materials (1 10). It is also possibile to clean and change the wet-type filtering materials (112) arranged within the wet-type filtration room (D). Furthermore, excrements filtered at the dry-type filtering materials (110) and the wet-type filtering materials (112) respectively are to be easily removed to the outside. Along with that, the wet-type filtration room (D) secures structurally wide space, so the water quality is to be enhanced by vertical circulation through the fish-bowl room (A), the drain room (B), the dry-type filtration room (C), and the wet-type filtration room (D).

For an aquarium tank in the present invention, in case of the water tank with a large number of tropical fishes, economic effect is to be obtained by cutting the fuel and electricity consumption upon using the underwater heater and other heating devices in terms of a boiler system installed in the floor under which the aquarium tank is to be placed. This device is, as illustrated in figure 6, 7, 8, 9, designed for excrements filtration of water tank with an operation by vertical circulation through the fish-bowl room (A), the drain room (B), the dry-type filtration room (C), and the wet-type filtration room (D).

[ Performance example 2 ] [ Aquarium tank in accordance with this invention ] This aquarium tank is, in performance example 1 formed as above, provided that the structure of the water tank consists of fish-bowl room (A) that contains fishes, water plants, sand, pebbles, stones, a drain room (B) that sends water and excrements to a dry-type filtration room, a dry-type filtration room (C) that filters water and excrements by means of the dry-type, and a wet-type filtration room (D) that filters water and excrements by means of the wet-type and sends them back to the fish-bowl room for the circulation.

This device is, as illustrated in figure 10, designed for excrements filtration of water tank with an operation by vertical circulation through the fish-bowl room (A), the drain room (B), the dry- type filtration room (C), and the wet-type filtration room (D).

[ Performance example 3 ] [ Aquarium tank in accordance with this invention ] This aquarium tank is, in performance example 1 formed as above, provided that the structure of the water tank consists of fish-bowl room (A) that contains fishes, water plants, sand, pebbles, stones, a drain room (B) that sends water and excrements to a wet-type filtration room, a wet- type filtration room (D) that filters water and excrements by means of the wet-type and sends them back to the fish-bowl room for the circulation, and a transmission room (E) that transmits heat from the surface of the external floor to the inside of the water tank. This device is, as illustrated in figure 1 1 , designed for excrements filtration of water tank with an operation by vertical circulation through the fish-bowl room (A), the drain room (B), and the wet-type filtration room (D). [ Performance example 4 ] [ Aquarium tank in accordance with this invention ] This aquarium tank is, in performance example 1 formed as above, provided that the structure of the water tank consists of fish-bowl room (A) that contains fishes, water plants, sand, pebbles, stones, a drain room (B) that sends water and excrements to the wet-type filtration room, a wet-type filtration room (D) that filters water and excrements by means of the et-type and sends them back to the fish-bowl room for the circulation.

This device is, as illustrated in figure 12, designed for excrements filtration of water tank with an operation by vertical circulation through the fish-bowl room (A), the drain room (B), and the wet- type filtration room (D).

[ Performance example 5 ] [ Livefish tank in accordance with this invention ] Provided that the structure of the water tank consists of fish-bowl room (A) that contains livefishes, a drain room (B) that sends water and excrements to a dry-type filtration room, a dry-type filtration room (C) that filters water and excrements by means of the dry-type, a wet- type filtration room (D) that filters water and excrements by means of the wet-type and sends them back to the fish-bowl room for the circulation, and a transmission room (E) that transmits cooling from the surface of the external floor to the inside of the water tank, as illustrated in figure 17, form a floor of the fish -bowl room (A) by a horizon net plate (120) and install a trumpet structure (12) underneath of the horizon net plate (120). Set up a horizon net plate circulation pipe (122) on the horizon net plate (120) and connect an air tube (24) to the horizon net plate circulation pipe (122). To the trumpet structure (12), install a trumpet structure drain pipe (14), a fish-bowl room drain valve (16), and a trumpet structure valve (18).

Set up a floating matter drain pipe (26) vertically right through the inside of the fish-bowl room (A), the trumpet structure (12) and up to the above of the horizon net plate (120), and install a floating matter drain valve (70) at the lower part of the pipe. Upon forming a drain room (B) from the trumpet structure (12) to the downward, As illustrated in figure 13, form a floor of the drain room (B) with a drain room net plate (88) and form drain outlet (58) by inserting pipes to the holes.

Place a rubber stick fixing rod (108) at the center of the drain room (B) and form holes on the rubber stick fixing rod (108), and connect the drain controlling rubber stick (44), (72) with the drain controlling buoyancy ball (46), (74) in between the holes, so as to control the draining of the fish-bowl room (A) as outlets of the trumpet structure drain pipe (14) and the floating matter drain pipe (26) get closed by buoyancy according to the water level in the wet-type filtration room (D). And an air pump room (54) install in the drain room (B). Upon forming a dry-type filtration room (C) from the drain room (B) downward, as illustrated in figure 3, put a dry-type filtration room net plate (82) for a floor so that water and excrements coming down from the drain room (B) are to be filtered through a layer of the dry-type filtering materials (110) located in the dry-type filtration room (C). Also, place a dry-type filtration room support stand (84) underneath of the filtration room (C) so as to pull out the main body of the filtration room (C), thus, forming the dry-type filtration room (C) in such a way that one can clean or change dry-type filtering materials (110).

Then, vertically, set up the horizon plate (52), and at each side of the wet- type filtration room net plate (86), form a room of the wet-type filtering materials (112) whose layer would consists of detailed filtration steps, such as physical filtration, biological filtration, absorptive filtration, and chemical filtration.

Install a circulation pipe (28) vertically passing right through the fish-bowl room (A), the horizon net plate (120), the trumpet structure (12), the drain room (B). and the dry- type filtration room (C) and the wet-type filtration room (D). Then, connect an underwater motor (48) to the lower part of circulation pipe (28) and also install a circulation pipe valve (32) and a wet-type filtration room drain valve (34) to the circulation pipe (28), and as illustrated in figure 13, place horizontally a feed water pipe (36) equipped with a feed water valve (38) installed at the upper part into the valve fixing rod (1 18) of drain room (B), so as water to be supplied into the wet-type filtration room (D).

Upon forming a transmission room (E) from the wet-type filtration room (D) downward, place the floor of the transmission room (E) tightly close to the external floor, so as to transmit cooling to the water tank efficiently as the cooling is supplied from the outside. Also, place transmission room supplying pipes (40) from the drain room (B) to the transmission room (E) with transmission room supplying valves (42) installed at the upper part, which enables water to be supplied to the tightly sealed transmission room (E).

In regard to the power supply and wiring, an electric wire is to run from the power plug (106) to the top of the drain room (B) 0 right through the inside of the armor side (68), and this wire is to be spitted into two lines in between the trumpet structure (12) and the trumpet structure support stand (66). The first line connected to the inside of the air pump room (54) through the hole formed at the upper part of the trumpet s structure support stnad (66) and the second line run through the lamp room wiring pipe (30) and wired within the inside of the lamp room (62).

The air tube (24) connected to the lower part of the horizon net plate circulation pipe (122) is to run downward through the o inside of the lamp room wiring pipe (30) and to be linked to the air pump (80) being wired via the inside of the air pump room (54) passing through the hole formed at the top of the trumpet structure support stand (66). The light lamp (96) is to be installed within the lamp room (62). 5 And the light lamp switch (104), the underwater motor switch (98), the electron water temperature meter (60) are to be installed at the out side of the lamp room.

The floating matter filtering cap (1 14) is to cover the upper part of the floating matter drain pipe (26), the water cap (20) is to o cover the lower part of trumpet structure drain pipe (14). And the doors (76), (78), (90) are to be placed to the armor side (68), the drain room (B), and the lamp room (62).

Set up the glass (64) to four sides of the fish-bowl room (A). The hole size of the horizon net plate (120) is to be about l ~ 2cm.

Water flow drained downward from the fish-bowl room (A) is to be controlled by the trumpet structure valve (18), the floating matter drain valve (70), installed at the trumpet structure drain pipe (14) and the floating matter drain pipe (26) respectively.

In case of the livefish tank in accordance with this invention, because of the horizon net plate (120) formed for the bottom of the fish-bowl room (A), excrements in the water tank are to be swiftly driven into the dry-type filtration room (C) and filtered accordingly, and the main body of the dry-type filtration room (C) can be detached so as to clean and change the dry-type filtering materials (110).

It is also possibile to clean and change the wet-type filtering materials (112) arranged within the wet-type filtration room (D). Furthermore, excrements filtered at the dry-type filtering materials (1 10) and the wet-type filtering materials (112) respectively are to be easily removed to the outside. Along with that, the wet-type filtration room (D) secures structurally wide space, so the water quality is to be enhanced by vertical circulation through the fish-bowl room (A), the drain room (B), the dry- type filtration room (C), and the wet-type filtration room (D).

For an livefish tank in the present invention, in case of the water tank with a large number of livefishes, water temperature is to be maintained at a proper level for livefishes by cooling transmitted in terms of a cooling device installed in the floor under which the livefish tank is to be placed. This device is, as illustrated in figure 13, designed for excrements filtration of water tank with an operation by vertical circulation through the fish-bowl room (A), the drain room (B), the dry-type filtration room (C), and the 10 wet-type filtration room (D).

[ Performance example 6 ] [ Livefish tank in accordance with this invention ] This livefish tank is, in performance example 5 formed as above, provided that the structure of the water tank consists of fish-bowl room (A) that contains livefishes, a drain room (B) that sends water and excrements to a dry-type filtration room, a dry-type filtration room (C) that filters water and excrements by means of the dry-type, and a wet-type filtration room (D) that filters water and excrements by means of the wet-type and sends them back to the fish-bowl room for the circulation. This device is, as illustrated in figure 14, designed for excrements filtration of water tank with an operation by vertical circulation through the fish-bowl room (A), the drain room (B), the dry-type filtration room (C), and the wet- type filtration room (D).

[ Performance example 7 ] [ Livefish tank in accordance with this invention ] This livefish tank is, in performance example 5 formed as above, provided that the structure of the water tank consists of fish-bowl room (A) that contains livefishes, a drain room (B) that sends water and excrements to a wet- type filtration room, a wet-type filtration room (D) that filters water and excrements by means of the wet-type and sends them back to the fish-bowl room for the circulation, and a transmission room (E) that transmits cooling from the surface of the external floor to the inside of the water tank. This device is, as illustrated in figure 15, designed for excrements filtration of water tank with an operation by vertical circulation through the fish-bowl room (A), the drain room (B), and the wet-type filtration room (D).

[ Performance example 8 ] [ Livefish tank in accordance with this invention ] This livefish tank is, in performance example 5 formed as above, provided that the structure of the water tank consists of fish-bowl room (A) that contains fishes, a drain room (B) that sends water and excrements to a wet-type filtration room, a wet-type filtration room (D) that filters water and excrements by means of the wet-type and sends them back to the fish-bowl room for the circulation. This device is, as illustrated in figure 16, designed for excrements filtration of water tank with an operation by vertical circulation through the fish-bowl room (A), the drain room (B), and the wet-type filtration room (D).

[ Industrial Applicability ] The device of the present invention is designed to be used for manufacturers of aquarium tank and livefish tank.

Claims

CLAIM

1. Provided that the structure of the water tank consists of fish-bowl room (A) that contains fishes, water plants, sand, pebbles, stones, a drain room (B) that sends water and excrements to a dry-type filtration room, a dry-type filtration room (C) that filters water and excrements by means of the dry-type, a wet-type filtration room (D) that filters water and excrements by means of the wet-type and sends them back to the fish-bowl room for the circulation, and a transmission room (E) that transmits heat from the surface of the external floor to the inside of the water tank, form a floor of the fish-bowl room (A) by a convex net plate (10) and install a trumpet structure (12) underneath of the convex net plate (10).

Set up a convex net plate circulation pipe (22) on the convex net plate (10) and connect an air tube (24) to the convex net plate circulation pipe (22). o the trumpet structure (12), install a trumpet structure drain pipe (14), a fish-bowl room drain valve (16), and a trumpet structure valve (18).

Set up a floating matter drain pipe (26) vertically right through the inside of the fish-bowl room (A), the trumpet structure (12) and up to the above of the convex net plate (10), and install a floating matter drain valve (70) at the lower part of the pipe. Upon forming a drain room (B) from the trumpet structure (12) to the downward, form a floor of the drain room (B) with a drain room net plate (88) and form the drain outlet (58) by inserting pipes to the holes. Place a rubber stick fixing rod (108) at the center of the drain room (B) and form holes on the rubber stick fixing rod ( 108), and connect the drain controlling rubber stick (44), (72) with the drain controlling buoyancy ball (46), (74) in between the holes, so as to control the draining of the fish-bowl room (A) as outlets of the trumpet structure drain pipe (14) and the floating matter drain pipe (26) get closed by buoyancy according to the water level in the wet- type filtration room (D). The air pump room (54) install in the drain room (B).

Upon forming a dry-type filtration room (C) from the drain room (B) downward, put a dry-type filtration room net plate (82) for a floor so that water and excrements coming down from the drain room (B) are to be filtered through a layer of the dry-type filtering materials (110) located in the dry- type filtration room (C).

Place a dry-type filtration room support stand (84) underneath of the filtration room (C) so as to pull out the main body of the filtration room (C), thus, forming the dry-type filtration room (C) in such a way that one can clean or change the dry-type filtering materials (1 10).

Upon forming a wet-type filtration room (D) from the dry-type filtration room (C) to the downward, place a wet-type filtration room net plate (86) that remains at a constant hight from the floor.

Then, vertically, set up the horizon plate (52), and at each side of the wet-type filtration room net plate (86), form a room of the wet-type filtering materials (112) whose layer would consists of detailed filtration steps, such as physical filtration, biological filtration, absorptive filtration, and chemical filtration. Install a circulation pipe (28) vertically passing right through the fish-bowl room (A), the convex net plate (10), the trumpet structure (12), the drain room (B), and the dry-type filtration room (C) and the wet-type filtration room (D).

Then, connect an underwater motor (48) to the lower part of circulation pipe (28) and install a circulation pipe valve (32) and a wet-type filtration room drain valve (34) to the circulation pipe (28), and place horizontally a feed water pipe (36) equipped with a feed water valve (38) installed at the upper part into the valve fixing rod (1 18) of drain room (B), so as water to be supplied into the wet-type filtration room (D).

Upon forming a transmission room (E) from the wet-type filtration room (D) downward, place the floor of the transmission room (E) tightly close to the external floor, so as to transmit heat to the water tank efficiently as the heat is supplied from the outside. Place the transmission room supplying pipes (40) from the drain room (B) to the transmission room (E) with the transmission room supplying valves (42) installed at the upper part, which enables water to be supplied to the tightly sealed transmission room (E).

In regard to the power supply and wiring, an electric wire is to run from the power plug (106) to the top of the drain room (B) right through the inside of the armor side (68), and this wire is to be spitted into two lines in between the trumpet structure (12) and the trumpet structure support stand (66). The first line connected to the inside of the air pump room (54) through the hole formed at the upper part of the trumpet structure support stnad (66) and the second line run through the lamp room wiring pipe (30) and wired within the inside of the lamp room (62).

The air tube (24) connected to the lower part of the convex net plate circulation pipe (22) is to run downward through the inside of the lamp room wiring pipe (30) and to be linked to the air pump (80) being wired via the inside of the air pump room (54) passing through the hole formed at the top of the trumpet structure support stand (66). The floating matter filtering cap (114) is to cover the upper part of the floating matter drain pipe (26), the water cap (20) is to cover the lower part of trumpet structure drain pipe (14). This excrements filtering device for a water tank is operated by vertical circulation through the fish-bowl room (A), the drain room (B), the dry-type filtration room (C), and the wet-type filtration room (D).

2. In claim 1, the excrements filtering device for a water tank characterized in that the structure of the water tank consists of fish-bowl room (A), a drain room (B), a dry-type filtration room (C), and a wet-type filtration room (D).

3. In claim 1, the excrements filtering device for a water tank characterized in that the structure of the water tank consists of fish-bowl room (A), a drain room (B), a wet-type filtration room (D), and a transmission room (E).

4. In claim 1 , the excrements filtering device for a water tank characterized in that the structure of the water tank consists of fish-bowl room (A), a drain room (B), and a wet- type filtration room (D).

5. Provided that the structure of the water tank consists of fish-bowl room (A) that contains livefishes, a drain room (B) that sends water and excrements to a dry-type filtration room, a dry-type filtration room (C) that filters water and excrements by means of the dry- type, a wet- type filtration room (D) that filters water and excrements by means of the wet-type and sends them back to the fish-bowl room for the circulation, and a transmission room (E) that transmits cooling from the surface of the external floor to the inside of the water tank, form a floor of the fish-bowl room (A) by a horizon net plate (120) and install a trumpet structure (12) underneath of the horizon net plate (120). Set up a horizon net plate circulation pipe (122) on the horizon net plate (120) and connect an air tube (24) to the horizon net plate circulation pipe (122).

To the trumpet structure (12), install a trumpet structure drain pipe (14). a fish-bowl room drain valve (16), and a trumpet structure valve (18). Set up a floating matter drain pipe (26) vertically right through the inside of the fish-bowl room (A), the trumpet structure (12) and up to the above of the horizon net plate (120), and install a floating matter drain valve (70) at the lower part of the pipe. Upon forming a drain room (B) from the trumpet structure (12) to the downward, form a floor of the drain room (B) with a drain room net plate (88) and form the drain outlet (58) by Inserting pipes to the holes.

Place a rubber stick fixing rod (108) at the center of the drain room (B) and form holes on the rubber stick fixing rod (108), and connect the drain controlling rubber stick (44), (72) with the drain controlling buoyancy ball (46), (74) in between the holes, so as to control the draining of the fish-bowl room (A) as outlets of the trumpet structure drain pipe (14) and the floating matter drain pipe (26) get closed by buoyancy according to the water level in the wet-type filtration room (D).

The air pump room (54) install in the drain room (B).

Upon forming a dry-type filtration room (C) from the drain room

(B) downward, put a dry-type filtration room net plate (82) for a floor so that water and excrements coming down from the drain room (B) are to be filtered through a layer of the filtering materials (110) of dry-type located in the dry-type filtration room (C).

Place the dry-type filtration room support stand (84) underneath of the filtration room (C) so as to pull out the main body of the filtration room (C), thus, forming the dry-type filtration room (C) in such a way that one can clean or change the dry-type filtering materials (1 10).

Then, vertically, set up the horizon plate (52), and at each side of the wet-type filtration room net plate (86), form a room of the wet-type filtering materials (1 12) whose layer would consists of detailed filtration steps, such as physical filtration, biological filtration, absorptive filtration, and chemical filtration. Install a circulation pipe (28) vertically passing right through the fish-bowl room (A), the horizon net plate (120), the trumpet structure (12), the drain room (B), and the dry-type filtration room

(C) and the wet-type filtration room (D). Then, connect an underwater motor (48) to the lower part of circulation pipe (28) and install a circulation pipe valve (32) and a wet-type filtration room drain valve (34) to the circulation pipe (28), and place horizontally a feed water pipe (36) equipped with a feed water valve (38) installed at the upper part into the valve fixing rod (1 18) of drain room (B), so as water to be supplied into the wet-type filtration room (D). Upon forming a transmission room (E) from the wet-type filtration room (D) downward, place the floor of the transmission room (E) tightly close to the external floor, so as to transmit cooling to the water tank efficiently as the cooling is supplied from the outside. Place the transmission room supplying pipes (40) from the drain room (B) to the transmission room (E) with the transmission room supplying valves (42) installed at the upper part, which enables water to be supplied to the tightly sealed transmission room (E).

The air tube (24) connected to the lower part of the horizon net plate circulation pipe (122) is to run downward through the inside of the lamp room wiring pipe (30) and to be linked to the air pump (80) being wired via the inside of the air pump room (54) passing through the hole formed at the top of the trumpet structure support stand (66). The floating matter filtering cap (1 14) is to cover the upper part of the floating matter drain pipe (26), the water cap (20) is to cover the lower part of trumpet structure drain pipe (14). This excrements filtering device for a water tank is operated by vertical circulation through the fish-bowl room (A), the drain room (B), the dry- type filtration room (C), and the wet- type filtration room (D).

6. In claim 5, the excrements filtering device for a water tank characterized in that the structure of the water tank consists of fish-bowl room (A), a drain room (B), a dry-type filtration room (C), and a wet-type filtration room (D).

7. In claim 5, the excrements filtering device for a water tank characterized in that the structure of the water tank consists of fish-bowl room (A), a drain room (B), a wet-type filtration room (D), and a transmission room (E).

8. In claim 5, the excrements filtering device for a water tank characterized in that the structure of the water tank consists of fish-bowl room (A), a drain room (B), and a wet- type filtration room (D).