JPS6221297Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a live fish tank, and its purpose is to purify the water by efficiently circulating the water in the tank between the filtration tank and the tank. At the same time, it supplies the oxygen necessary for the survival of the fish, and maintains the inside of the aquarium in a state extremely similar to the natural environment.

To obtain fresh fish, it is desirable to keep the fish alive, and to catch and cook it as necessary. However, in this case, a large cage or aquarium is required, and especially in the case of fish that are difficult to raise artificially, such as rockfish, ayu, and rockfish, there are no examples of fish being kept alive for long periods of time, except in special places such as aquariums. The reality is that most fish are sold frozen, even at fish wholesalers. In addition, inns and restaurants that specialize in live fish dishes have a variety of fish swimming in aquariums that also serve as displays, but this requires extensive equipment such as large-scale filtration equipment and air supply equipment. Not only is maintenance expensive, but maintenance of the filtration equipment, or cleaning of contaminated filter media, is troublesome, so even if a general fish store wants to sell live fish, it is difficult to easily install such an aquarium. It was not profitable.

Therefore, this invention integrates the filtration tank, which is ancillary equipment, into the aquarium to make the whole tank more compact.
We provide a live fish tank that efficiently circulates the water in the tank to purify the water and supply oxygen at the same time, and in addition, the filter tank can be easily cleaned, making it possible to supply highly fresh fish to many people. The structure is such that a filter tank filled with a filter material is placed inside the tank, and below the filter tank there is a water inlet that communicates with the inside of the tank and a drain hole that communicates with the outside of the tank. An air lift pump is provided in each of the filter media, and an air lift pump is provided in which the air blowing port of an air blowing pipe is connected to the lower part of the water pump. The reason is that the water is pumped back into the aquarium by a pump.

Next, an embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a large circular aquarium, and in the center of the aquarium 1 there is provided a filter tank 2 filled with a filter material 2a with its bottom surface at the same level as the bottom surface of the aquarium 1. Further, the bottom surface of the water tank 1 is formed to have an inclination so that it becomes higher toward the outer periphery. A water inlet chamber 3 is formed at the center of the bottom of the filtration tank 2, and the water inlet chamber 3 is communicated with the inside of the water tank 1 through a conduit pipe 4a having a water inlet 4 at the other end. In addition, in the center of the bottom of the filter tank 2,
A drainage hole 5 opening into the water filling chamber 4 is provided, and a drainage pipe 6 is connected to the drainage hole 5. The distal end portion 6a of the drain pipe 6 is erected on the outside of the aquarium 1 so as to be freely tiltable, so that the leading end is located above the water surface in the aquarium 1 in the upright state. Furthermore, filter material 2
A liquid reservoir part 7a is formed in a by embedding a bottomed cylindrical water collecting pipe 7 having a water passage hole or no water passage hole in the peripheral wall. The liquid reservoir 7a is equipped with an air lift pump 10, which connects the inlet of the air blowing pipe 8 to the lower end of the water pump 9 and pumps up water using air pressure, to remove fresh water accumulated in the liquid reservoir 7a. It is designed to be released into the aquarium 1. On the other hand, a water supply pipe 11 is provided at the side edge of the water tank 1, and water can be supplied thereto, and water can be replenished as needed when the water level in the water tank 1 drops. The water supply pipe 11 has an air pressure pipe 1 near its tip.
1a, so that air can be mixed into the supplied water. Aquarium 1 configured as above
When the water tank 1 is filled with water from the water supply pipe 11, the water in the tank 1 flows into the water inlet chamber 3 from the water inlet 4 via the conduit pipe 4a, and further flows through the filter medium 2a.
The water passes through the inside and is stored in the liquid reservoir 7a.
A has the same water level as water tank 1. When the water injection is completed, the fish to be reared are released into the aquarium 1, and air is blown into the tank 1 through the air blowing pipe 8 using a compressor (not shown). It is released into the aquarium 1 along with the air. When the fresh water in the liquid reservoir 7a is pumped up and reduced, the reduced amount is introduced from the water tank 1 through the water inlet 4, and the water is circulated as described above. Therefore, the water in the aquarium 1 is filtered by passing through the filter medium 2a. The circulating water is filtered and a large amount of air is mixed in when it is pumped up and discharged by an air lift pump, so the dissolved oxygen rate is kept high, making it ideal for raising fish. On the other hand, if the filter medium 2a becomes clogged with fish excrement etc. and becomes dirty after long-term use, the tip of the upright drainage pipe 6
When the filter 2a is laid down and drained, dirt such as feces mixed in the filter medium 2a is also removed together with the waste water, and the filter medium 2a is cleaned. When the cleaning is finished, the distal end 6a of the drain pipe is raised again and filled with water, allowing the initial filtration ability to be restored. In addition, when draining water, it is also possible to wash only the inside of the filter tank 2 by blocking the water inlet 4. On the other hand, when the water inlet 4 is left open, all the water in the tank 1 is drained because the bottom of the tank 1 is slanted, making it convenient to remove limescale etc. that have adhered to the inside of the tank 1. be. In this way, the filter tank 1
Since the filtration tank is integrated into the aquarium, there is no need to provide a separate filtration device.

As described above, the live fish aquarium of the present invention can be made compact by incorporating a filter tank into the aquarium, and can fully exhibit the effects of being able to easily clean the filter medium and the inside of the aquarium.

In this embodiment, the water conduit is arranged approximately horizontally from the water inlet along the bottom of the filtration tank and communicates with the water inlet chamber. It can also be placed upwards. Further, the drainage hole can be connected not only to a tilting pipe and drained by tilting the pipe, but also by providing a pot in the drain hole and draining water by opening and closing the pot. Furthermore, a water collection pipe is not always necessary, and if the filter tank is small or the filter material has excellent water permeability,
Even if the water collection pipe is omitted and the air lift pump is provided directly inside the filter material, water can be circulated without any problem.

Next, we will show an example of a system that can improve the purification ability and intensively clean the filter media when several water tanks are installed. The system is connected to the drain pipe 6 of the filtration tank 2 through a connecting pipe by means of a pump.
The system is configured to forcibly pump up dirty water (drainage water) from each tank, filter it in a filtration tank 12 which is separate from the water tank, and circulate the obtained fresh water back to the water tank 1 via the water supply pipe 13. There is. By arranging the filter tank 12 above the water surface in the water tank 1, the circulation is carried out naturally on the principle of siphon. According to this system, when managing a plurality of aquariums 1 at the same time, each filtration tank 2 can be cleaned while the aquarium is filled with water, and only the filter medium 12a in the filtration tank 12 needs to be appropriately cleaned. Therefore, the filtration capacity of the filter media 2a in all the aquariums can be easily maintained in a uniform state. Furthermore, as shown in the figure, maintenance of the entire system is made easier by using a cartridge type in which one or more filter media 2a can be attached and detached. If a plurality of cartridges are to be used, a better effect can be obtained by making the cylinder into a shape that is vertically divided into oranges. As is clear from the above explanation, according to the present invention, the inside of the aquarium can be maintained in a state close to the natural environment, the filter medium can be cleaned simply by draining water, and it can be formed compactly. The benefits brought about are enormous.

[Brief explanation of the drawing]

FIG. 1 is an explanatory sectional view of a live fish tank according to the present invention, and FIG. 2 is an explanatory sectional view showing a system in which a plurality of live fish tanks are installed. 1...water tank, 2...filter tank, 2a...filter material,
3... Water inlet chamber, 4... Water inlet, 4a... Conduit pipe,
5... Drain hole, 6... Drain pipe, 6a... Tip of drain pipe, 7... Water collection pipe, 7a... Liquid reservoir, 8... Air blowing pipe, 9... Lifting pipe, 10
...Air lift pump, 11...Water pipe, 11
a... Air pressure fitting pipe, 12... Filtration tank, 12a
...filter material, 13...water supply pipe.

Claims (1)

[Scope of utility model registration request] A filtration tank filled with a filtration material is placed inside the aquarium, a water inlet communicating with the inside of the aquarium and a drainage hole communicating with the outside of the aquarium are provided below the filtration tank, and further inside the filtration material. is equipped with an air lift pump consisting of an air blowing pipe connected to the lower part of the pumping pipe, and the water in the tank passes through the filter material from the water inlet and is returned to the tank by the air lift pump. An aquarium for live fish, characterized in that it is configured to allow fish to be returned to the tank.