JPH0662703A - Water tank for live fish - Google Patents

Abstract

PURPOSE:To enable the improvement in a water exchange rate and the easy discharge of remained feeds in the live fish water tank permitting its utilization also as a fish-storing and culturing tank. CONSTITUTION:A water-supplying pipe header 8 is disposed above the water surface of a water tank 10 for live fishes, and water is uniformly supplied on the water surface 2 from the water-pouring openings 8a of the header. The water is simultaneously uniformly drained from the many draining holes 11a of a porous plate 11 disposed on the bottom of the water tank 10, thereby permitting uniform transfer of water in the tank 10 from its upper part to its lower part and successively discharge the water from old water for the large improvement of a water-exchange rate. A large diameter remained feed 17 transferred along the slope of the porous plate 11 to a depressed staying part 9a and stayed on the porous plate 14 of the staying part 9a can easily be discharged to the outside of the water tank 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aquarium for live fish which can also be used as a farm, and more particularly to an improvement for improving the water exchange rate and facilitating the discharge of residual food.

[0002]

2. Description of the Related Art Conventionally, as an aquarium for live fish (live fish tank),
The one shown in FIGS. 2 and 3 is known, and the water tank 10
Is formed in a substantially square shape in plan view by the four side wall members 1, and a water supply pipe 15a is attached near the upper edge of the side wall member 1 near the corner of the water tank 10, and the side wall member is substantially diagonal to the water supply pipe 15a. A drainage pipe 15b is attached near the upper edge of No. 1. Then, the replacement water in the water tank 10 is supplied from the water supply port of the water supply pipe 15a into the tank in the form of a jet, and while mixing with the surrounding water, a part of the water is discharged from the water discharge port of the drain pipe 15b. It is done in. Reference numeral 2 in FIGS. 2 and 3
Indicates the water surface, and reference numeral 4 indicates a fish.

[0003]

Generally, the cause of mortality of fish and shellfish in live fish tanks is considered to be poor water exchange. By the way, in the conventional aquarium as described above, water is supplied to the water supply pipe 15a.
It is performed by vigorously discharging water from one of the water injection ports of the above, and the water flow becomes a jet water flow and develops while entraining the old water 12 around it, forming a swirling flow 13 with a vortex in the tank. ing. On the other hand, the drainage port of the drainage pipe 15b is literally one port, and therefore, only the water in the vicinity of that port can be sucked in, and a large amount of swirling fluid does not easily reach the drainage port and is newly injected. Since water and old water are mixed together, there is a problem that the water exchange efficiency of the water tank is extremely low.

The present invention is intended to solve such a problem, and in a live fish tank, a water supply pipe header having a large number of water injection ports is disposed above the water surface of the tank. At the same time as supplying water evenly from the top of the tank,
At the bottom of the water tank, a perforated plate with a large number of drainage holes is arranged with a downward slope toward the reservoir formed in a concave shape at the bottom, to uniformly drain water from the bottom of the water tank, and An object of the present invention is to provide an aquarium for live fish in which large-diameter leftover baits and the like are accumulated in the pool to improve the water exchange efficiency of the aquarium and to easily remove the leftover baits and the like. .

[0005]

In order to achieve the above-mentioned object, the live fish tank of the present invention is provided with a water supply section and a drain section in the water tank, and the water supply section is disposed above the water surface of the water tank. It is formed as a water supply pipe header in which a large number of water injection holes are formed in the peripheral wall, while the drainage part is provided at the bottom of the water tank and has a downward slope toward a concave reservoir part formed at the bottom. It is characterized in that it is formed as a perforated plate in which a large number of drainage holes are formed.

[0006]

In the above-mentioned live fish tank of the present invention, the water is uniformly poured in the form of rain on the water surface of the water tank from a large number of water injection ports formed in the water supply pipe header. And the water supply
Move down in the water tank. On the other hand, the old water in the aquarium is uniformly discharged from a large number of drain holes of the perforated plate, and at that time, the relatively large-diameter residual food and the like move slowly toward the reservoir on the perforated plate.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A live fish tank as an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side sectional view. The water tank 10 of this embodiment is also formed in a substantially square shape in a plan view by the four side wall members 1. A water supply pipe header 8 is disposed above the water surface 2 of the water tank 10. A large number of water injection ports 8a are formed in the water supply pipe header 8 evenly over substantially the entire length (entire width) of the water tank 10. There is.

Further, on the bottom plate 1a of the water tank 10, two left and right perforated plates 11 having a large number of small-diameter drainage holes 11a are attached symmetrically with a downward slope toward the center of the bottom plate 1a. ing. The two perforated plates 11 are mounted on the bottom plate 1a so that their inner end edges facing each other do not abut, a space is formed between both inner end edges, and the bottom plate 1a facing this space is formed. A recess 9a is provided in the
A branch pipe 18a of the drainage pipe 18 is connected to. Also,
Recesses 9b and 9c are also formed below each perforated plate 11 of the bottom plate 1a, and branch pipes 18b and 18 of a drainage pipe 18 are formed in the recesses 9b and 9c.
c are connected to each other.

Further, a perforated plate 14 is horizontally attached to the pool portion 9a, and a hanging metal fitting (eye bolt) 16 is attached to the perforated plate 14.
Is installed. Reference numeral 6 denotes a sedimentation filtration tank, to which water in the water tank 10 is supplied through a pipe 18 to the sedimentation filtration tank, while supplying water filtered by the sedimentation filtration tank to a water supply pipe header 8. , A pipe 5 as a water supply pipe is provided between the sedimentation filtration tank 6 and the water supply pipe header 8,
A pump 7 is attached to the pipe 5. Reference numeral 3 in FIG.
Is the water flow from the water injection port 8a toward the aquarium 10, and the reference numeral 3a
Is the water flow that has passed through the drainage hole 11a of the perforated plate 11,
17 indicates the remaining food (or fish dung), respectively.

In the above structure, old water, residual food, etc. near the bottom of the water tank 10 is sucked into the sedimentation filtration tank 6 through the reservoir 9a and the recesses 9b, 9c and the pipe 18, where filth such as residual food is collected. Is removed and the water supply port 8 of the water supply pipe header 8 is removed.
It is returned from a to the water tank 10. At this time, the large-diameter leftover food 17 and the like move on the perforated plate 11 according to the inclination thereof, and the pool 9a
It falls to and accumulates on the perforated plate 14. When the perforated plate 14 is extremely dirty or when a large amount of residual food 17 or the like is accumulated on the perforated plate 14, a hook of a crane (not shown) is engaged with the hanging metal fitting 16 to lift it, and the water tank 10 Take it out and clean it.

As described above, in the live fish tank of this embodiment, water is uniformly supplied into the tank from above via the water supply pipe header 8, while the water is uniformly drained from the bottom. Inside, the water in the whole aquarium moves from the top to the bottom, and the old water is sequentially discharged and replaced with new water, thus improving the water exchange rate.
Further, since the relatively large-sized residual food 17 and the like move to the pool 9a along the perforated plate 11 and accumulate there, it is possible to prevent a large amount of the residual food and the like from flowing into the settling filtration tank 6.

[0012]

As described above in detail, according to the aquarium for live fish of the present invention, the water supply to the aquarium is uniform through the multiple water injection ports of the water supply pipe header arranged on the water surface of the aquarium. To be done. On the other hand, drainage from the water tank is uniformly performed through a large number of drain holes of a perforated plate arranged at the bottom of the water tank.
That is, since the water in the entire water tank moves from the upper side to the lower side in the water tank, and the old water is sequentially discharged from the lower side, it is possible to significantly improve the water exchange rate in the water tank. Moreover, since large-sized residual foods and the like do not flow into the sedimentation filtration tank, there is an advantage that the sedimentation filtration tank can be prevented from deterioration.

[Brief description of drawings]

FIG. 1 is a schematic side sectional view of a live fish tank as an embodiment of the present invention.

FIG. 2 is a plan view of a conventional live fish tank.

FIG. 3 is a side view of the same.

[Explanation of symbols]

 1 Side Wall Member 2 Water Surface 3 Water Flow 4 Fish 5 Piping 6 Sedimentation Filtration Tank 7 Pombu 8 Water Supply Pipe Header 8a Water Injection Port 9a Reservoir 9b Recess 10 Water Tank 11 Perforated Plate 11a Drain Hole 14 Perforated Plate 16 Hanging Bracket 17 Leftover Food 18 Piping 18a, 18b, 18c branch pipe

Claims (1)

[Claims] 1. A water tank, comprising a water supply section and a drain section, wherein the water supply section is formed as a water supply pipe header which is arranged above the water surface of the water tank and has a large number of water injection openings formed on its peripheral wall. The drainage portion is formed as a perforated plate that is disposed at the bottom of the water tank and is provided with a downward slope toward a concave reservoir formed at the bottom and has a large number of drainage holes formed therein. A live fish tank.