JP2000324978A - Breeding vessel for aquarium fish - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a breeding vessel for aquarium fish, capable of readily discharging deposit by only taking out a slight amount of water, further capable of supplying oxygen to the water in the breeding vessel at a desired timing, and excellent in portability. SOLUTION: This breeding vessel 1 for aquarium fish has a vessel body 2, a cap 3, a pressure-regulating tube 5 and a guide tube 6. The cap 3 is detachably attached to an upper opening part of the vessel body 2. The pressure- regulating tube 5 allows an air chamber S at the upper side of the water surface held by the vessel body 2 to communicate with the exterior to regulate the air pressure of the air chamber S. The guide tube 6 is extended from the bottom part of the vessel body 2 to the exterior. When the air chamber is pressurized, the guide tube 6 discharges deposit in the vessel body 2 to the exterior, and when the pressure of the air chamber is reduced, the guide tube 6 introduces the air from the exterior to the interior of the vessel body 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an appreciation fish breeding apparatus, and more particularly to a portable appreciation fish breeding apparatus suitable for breeding appreciation fish such as medaka.

[0002]

[Prior art]

Conventionally, there are aquariums and bowls as breeding vessels for appreciation fish. Fish is released by putting an appropriate amount of water in these containers, releasing the fish, feeding, supplementing oxygen, and the like. When fish are put into the incubator for a long time, fish droppings and food left behind are accumulated at the bottom. Therefore, at appropriate times, the fish is transferred to another container and the inside of the container is cleaned.

[0004]

However, in such a conventional appreciation fish breeding device, when removing the sediment accumulated in the breeding device, it is often necessary to replace all the water, which is troublesome. In addition, if the water quality changes when the water is replaced, the fish weaken, and especially when rearing small fish such as medaka, the fish may not be adapted to the environment and may become ill.

Further, in the conventional appreciation fish breeding apparatus, it is necessary to separately attach an electric pump for supplying oxygen, an air generator, and the like to the breeding apparatus, so that the apparatus configuration becomes large and the power supply is secured. There is a problem that the installation place of the incubator is limited.

Accordingly, the present invention has been made in view of such a situation, and it is possible to efficiently discharge sediment by removing only a small amount of water, and to add oxygen to water in an incubator at a desired timing. It is an object of the present invention to provide an appreciable fish breeding device that can be supplied and has excellent portability.

[0007]

According to the present invention, there is provided an ornamental fish breeding apparatus comprising: a container body for holding a predetermined amount of water; and a cap detachably attached to an upper opening of the container body. A pressure adjusting tube communicating the air chamber above the water surface held by the container body with the outside and adjusting the air pressure of the air chamber; extending from the bottom of the container body to the outside; A guide tube for discharging sediment of the container body to the outside at the time of pressurization and introducing air from the outside to the container body at the time of decompression of the air chamber is provided.

[0008] The bottom plate of the container body may be provided with an inclined portion which is gradually inclined downward from the central portion to the outer peripheral portion of the bottom plate. In addition, a nozzle pipe may be provided at the lower end of the guide pipe, and a plurality of small holes may be formed on a side surface of the nozzle pipe.

According to the ornamental fish breeding apparatus of the present invention, when water is contaminated with fish droppings, first, the container body is kept stationary, and contaminants in the water are settled on the bottom. Next, air is blown into the air chamber of the container body by a pressure adjusting tube. Then, the air pressure in the air chamber rises, pushing down the water surface, and the sediment is discharged from the bottom of the incubator together with a small amount of water to the outside through the guide tube. Further, when replenishing the water in the incubator with oxygen, the air in the air chamber is sucked out by a pressure control tube to lower the air pressure in the air chamber. Then, the water surface rises, the outside air is sucked into the guide tube, and rises as bubbles from the bottom of the incubator.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG.
Includes a container body 2, a cap 3, a pressure adjusting tube 5, and a guide tube 6. An appropriate amount of water is put into the container body 2, and appreciable fish such as medaka are released. It is desirable to use the water from the pond or river as it is as the water to be put into the container body 2, but it is also possible to use tap water adjusted. Stones, aquatic plants and the like are appropriately arranged inside the incubator 1.

The container body 2 is formed by integrally molding a plastic material. The wall surface of the container body 2 is transparent,
The inside can be seen through from the outside. Note that the container body 2 can also be formed of a glass material. When water is poured into the container body 2, an air chamber S is formed above the water surface W (see FIG. 2).

A plastic cap 3 is detachably attached to the upper opening of the container body 2. Two through holes are formed in the cap 3, and the pressure adjusting pipe 5 and the guide pipe 6 pass through each of the through holes.

As shown in FIG. 2, the pressure adjusting pipe 5 comprises a metal pipe 5a and a flexible hose 5b. A flexible hose 5b is inserted above the metal pipe 5a. The guide tube 6 is composed of a metal pipe 6a and flexible hoses 6b and 6c. A flexible hose 6b is inserted above the metal pipe 6a, and a flexible hose 6c is inserted below the metal pipe 6a. The metal pipes 5a and 6a are fixed to the respective through holes of the cap 3 with an adhesive or the like while maintaining airtightness.

The lower end of the pressure adjusting tube 5 opens into the air chamber S at a position projecting slightly below the lower end of the cap 3. As a result, the air chamber S communicates with the outside through the pressure adjusting pipe 5.

On the other hand, the lower end of the guide tube 6 extends to the bottom of the container body 2. When contaminants settle on the bottom of the container body 2, the lower end of the guide tube 6 comes into contact with the sediment.

As shown in FIG. 3, a dome-shaped inclined portion 2a is formed on the bottom wall surface of the container body 2. Inclined part 2a
Is formed so as to gradually incline downward from the center to the outer periphery of the bottom plate. When the lower end of the guide tube 6 hits the inclined surface, as shown by the arrow in FIG. 3, the guide tube 6 reaches the receiving portion 2b on the outer periphery of the bottom plate along the inclined surface. That is, the container body 2
When the guide tube 6 is inserted into the guide tube 6, the lower end of the guide tube 6 hits the inclined surface and naturally moves to the receiving portion 2b. Also, when contaminants settle in the container, the contaminants move to the receiving portion 2b along the surface of the inclined portion 2a.

The shape of the inclined portion 2a is formed so as to be gradually inclined downward from the central portion to the outer peripheral portion of the bottom plate due to the following advantages. When the container body 2 is manufactured, it is easy to integrally mold it. The stability is improved when the container body 2 is placed. The strength of the container body can be increased with a small amount of molding material.

As shown in FIG. 4, at the tip of the guide tube 6,
The nozzle tube 6d is attached. A plurality of small holes h are formed at substantially equal intervals on the peripheral surface of the nozzle tube 6d. According to the nozzle pipe 6d, when the sediment is sent into the guide pipe 6, the water pressure is dispersed in each small hole h, and even if the fish approaches the nozzle pipe 6d, it is not sucked into each small hole h. Further, when air is introduced into the container through the guide tube 6, the bubbles are reduced and diffused into the water, so that oxygen in the air is easily taken into the water.

At the ends of the pressure control pipe 5 and the guide pipe 6,
The rod stoppers 7, 8 are attached. The stick stoppers 7 and 8 are
This prevents foreign substances such as dust and pride from entering the water, and prevents water from accidentally jumping out of the pressure adjusting pipe 5 and the guide pipe 6.

When the incubator 1 is used, if contaminants are generated in the water due to excretion of fish or uneaten food, the contaminants accumulate at the bottom.
When the amount of sediment increases, it causes turbidity and water quality deterioration, and the fish is more susceptible to disease. Therefore, it is necessary to periodically remove the bottom sediment.

As shown in FIG. 5, when removing the precipitate G, the rod stoppers 7 and 8 are removed from the pressure control pipe 5 and the guide pipe 6, and air is blown from the pressure control pipe 5 into the air chamber S. Then, the air pressure in the air chamber S increases and pushes the water surface. Thereby, the water at the bottom is sent into the guide tube 6 together with the sediment G, and is discharged to the outside. In addition, the reduced amount of water is replenished to the incubator 1 as necessary.

When replenishing oxygen into the container, the air in the air chamber is sucked out of the pressure adjusting tube 5 with the pressure adjusting tube 5 and the guide tube 6 removed. Then, the air pressure in the container decreases, the outside air is sucked in from the guide tube 6, and the air rises as bubbles from the bottom. As the bubbles rise, the oxygen in the bubbles dissolves into the water.

As described above, according to the incubator 1 of the present embodiment,
The sediment accumulated at the bottom can be efficiently discharged to the outside by a simple operation. The sediment can be easily and quickly taken out while keeping fish and aquatic plants in the incubator 1, and
After removing the sediment, the water quality hardly changes,
Has little effect on fish and is easy to maintain health. Furthermore, since the incubator 1 can easily supply oxygen through the guide tube 6, there is no need to provide a device such as a pump, and the installation space can be reduced.

Next, a second embodiment of the present invention is shown in FIG.
The appreciation fish breeding apparatus 20 of the second embodiment uses a PET bottle for the container body 22 and the cap 23. A hole is formed in the upper surface of the cap 3 so as to pass through the pressure adjusting pipe 5 and the guide pipe 6. The lower end of the guide tube 6 is set to a length that reaches the bottom plate of the container body 2. On the bottom plate of the container body 22,
A receiving portion is formed on the outer periphery of the inclined portion. The inclined portion is gradually inclined downward from the central portion to the outer peripheral portion. By using a plastic bottle for the incubator in this way, it is useful for effective use of resources.

FIG. 8 shows a third embodiment of the present invention. The ornamental incubator 30 of the third embodiment has a mortar-shaped inclined portion 32a formed on the bottom plate of the container body 32. Inclined part 32
a gradually inclines upward from the center to the outer periphery of the bottom plate. A leg portion 32c is formed below the bottom plate so that the inclined portion 32a does not contact the table surface when the incubator 30 is placed on the table. According to the third embodiment, when the guide tube 6 is inserted into the container body 32, the tip of the guide tube 6 moves to the receiving portion 32b at the center of the bottom plate by the inclined portion 32a as shown by the arrow in FIG. In addition, the precipitate is
, The discharge operation can be performed more efficiently.

Although the first to third embodiments have been described, the shapes of the container body 2 and the cap 3 are not limited to these, and may be changed as appropriate. Moreover, the appreciation fish breeding device of the present invention may be used for breeding appreciation fish such as goldfish and tropical fish and fry of various fishes in addition to medaka.

[0027]

As described above, according to the appreciation fish breeding apparatus of the present invention, the following excellent effects can be obtained. (a) By removing only a small amount of water from the incubator, sediments such as fish excreta and food residues can be efficiently and rapidly removed. (b) Oxygen can be supplied to the water in the incubator with a simple configuration, and it is easy to reduce the size and weight. (c) The dirt of water can be removed with almost no change in water quality, and the health of fish can be maintained for a long time.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an appreciation fish incubator according to a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional view showing an upper part of the ornamental fish incubator according to the first embodiment of the present invention.

FIG. 3 is a partial cross-sectional view showing a bottom portion of the ornamental fish breeding device according to the first embodiment of the present invention.

FIG. 4 is a partial cross-sectional view showing a distal end portion of a guide tube of the appreciation fish breeding apparatus according to the first embodiment of the present invention.

FIG. 5 is a side view for explaining a method of using the ornamental fish breeding device according to the first embodiment of the present invention.

FIG. 6 is a side view for explaining a method of using the ornamental fish breeding device according to the first embodiment of the present invention.

FIG. 7 is a side view showing an appreciation fish incubator according to a second embodiment of the present invention.

FIG. 8 is a partial sectional view showing a bottom of an appreciation fish breeding apparatus according to a third embodiment of the present invention.

[Explanation of symbols]

 1 Appreciation fish breeder 2 Container main body 2a Inclined part 2b Receiving part 3 Cap 5 Pressure control pipe 5a Metal pipe 5b Flexible hose 6 Guide pipe 6a Metal pipe 6b, 6c Flexible hose 7, 8 Bar stopper S Air chamber W Water surface G Precipitation object

Claims (3)

[Claims] 1. A container body for holding a predetermined amount of water, a cap removably attached to an upper opening of the container body, and an air chamber above the water surface held by the container body communicating with the outside. A pressure adjusting tube capable of adjusting the air pressure of the air chamber, extending from the bottom of the container body to the outside, discharging the sediment of the container body to the outside when the air chamber is pressurized, and depressurizing the air chamber. A viewing tube for introducing air from outside to the container body at times. 2. The ornamental fish breeding device according to claim 1, wherein the bottom plate of the container body is provided with an inclined portion which is gradually inclined downward from a central portion to an outer peripheral portion of the bottom plate. 3. The appreciation fish breeding device according to claim 1, wherein a nozzle tube is provided at a lower end portion of the guide tube, and a plurality of small holes are formed on a side surface of the nozzle tube.