JPS5939896Y2 - Vehicles dedicated to transporting live fish - Google Patents

Description

[Detailed explanation of the invention] This invention relates to a special vehicle used for transporting live fish.
Water in an aquarium mounted on the vehicle body is controlled to be clean by an aeration mechanism, an oxygen supply mechanism, and a water quality control mechanism that circulates and filters water while adjusting the water temperature, and a cage containing live fish arranged in a row is submerged in the aquarium for transport. This ensures a good living environment for live fish during long-term transportation, and allows live fish to be transported in large quantities in perfect condition without being burdened.

Conventionally, when transporting live fish such as sea bream and yellowtail over long distances, a container-style tank is filled with water and the live fish housed in a basket or the like is submerged, and the tank is then loaded onto the bed of a truck, freight car, trailer, etc. At the same time, the tank is simply supplemented with oxygen.

However, as is well known, live fish are susceptible to oxygen poisoning when the amount of oxygen in the water becomes excessive, leading to paralysis and death, and carbon dioxide gas easily dissolves in water and is difficult to remove. Not only do they become fatigued and it is extremely difficult to keep them in a healthy state, but they are also greatly affected by temperature changes, especially increases in water temperature. be.

This invention is aimed at solving the above-mentioned conventional problems, and will be explained below based on the illustrated embodiment.

As shown in Figures 1 and 2, reference numeral 1 in the figures is, for example, a trailer body, and on a flatbed chassis there are aquariums 2 with a heat-insulating structure in which cages for storing live fish are housed in a plurality of tiers. A water quality control device 3 is installed in the middle of both water tanks 2.

As shown in FIGS. 3 and 4, the aquarium 2 has an opening at the center of the upper surface, and a lid plate 21 is sealed in the opening 2a. is exhaust port 2
2 is provided.

And, on the inner side wall surface facing the front and rear of the water tank 2,
A partition plate 23 having a large number of water passage holes 23a is disposed only in the upper half portion thereof with an appropriate interval a, and the aeration pipe 2 has a large number of discharge holes 24a in the bottom portion corresponding to the gap.
On the other hand, a pair of front and rear air elevators 25 are arranged at appropriate intervals on the inner side wall surfaces facing each other on the left and right sides.
is located.

The air elevator 25 consists of a cylindrical body with a tip nozzle portion 25a protruding from the liquid surface, and compressed air is supplied to the bottom opening side of the cylindrical body and both ends of the aeration pipe 24 via a blower 26 and an air filter 27. is supplied so that the water W in the water tank 2 can be aerated, and the aeration pipe 24,
Air elevator 25, blower 26 and air filter 27
and stole the aeration equipment.

In addition, 28 in the figure is a disperser placed at the bottom of the water tank 2, which replenishes oxygen appropriately into the water by generating fine bubbles in the water from the oxygen sent from the oxygen cylinder 29 through the pressure regulator. It's something you get.

By the way, as shown in FIGS. 5 and 6, both ends of the diffuser pipe 24, through which compressed air is sent from the blower 26 via the air filter 27, and the branch part to the air elevator 25, Air reservoirs 241,251 are provided, each of which is intercepted so as to serve to bring the supply pressure to the diffuser tube and air elevator closer to static pressure.

Further, as shown in FIG. 7, the water quality control device 3 is integrally formed with a filtration tank 4 and a cooling tank 5 adjacent to each other, and both tanks are partitioned by a partition plate 6. The lower part has a water flow lower part, while the upper part is provided with a ventilation hole 8.

The filtration tank 4 has a water quality improver layer 45 formed by sequentially layering bagged oyster shells 42, coral stones 43, zeolite 44, etc. on a screen-like bottom plate 41, and a fine filter cloth 46 on top of the water quality improver layer 45. and a floating matter removal layer 48 in which coarse-mesh rock filters 47 are laminated alternately.
Water is supplied to the upper part of the filtration tank 4 through a nozzle 10a in the form of a shower, and the water is filtered and cleaned.

On the other hand, a cooling coil 12 connected to a cooler 11 and a distributor 14 connected to an oxygen cylinder 13 are disposed in the cooling tank 5, and the clean water from the water passage lower of the filtration tank 4 is transferred to the cooling coil 12. 12 and oxygen is supplied to a predetermined mixing ratio using a disperser 14, so that water can be supplied into the water tank 2 again via a water pipe 15.

Further, in the figure, 16 is a controller that automatically adjusts the water temperature in the water tank 2 and the aeration device, and 17 is a controller 418 that automatically adjusts the water quality control device 3, which is a generator.

However, when transporting live fish, first place them in tank 2.
Submerge the storage basket containing the live fish one by one, and use the air diffuser pipe 2.
4 and the air elevator 25 to aerate the water.

At this time, air bubbles generated from the discharge hole 24a of the air diffuser 24 rise through the gap a formed between the inner wall surface of the water tank 2 and the partition plate 23, and air bubbles generated by the air elevator 25 rise within the guide cylinder. Therefore, there is no direct contact with the live fish, and the rapid convection caused by rising air bubbles is not exerted on the live fish, making it possible to efficiently circulate water, release carbon dioxide gas, and replenish oxygen. Since the water holes a are provided only in the upper half of the plate 23, the contact time between air bubbles and water is increased, which improves the oxygen replenishment ability and prevents water from flowing due to vibration during transportation. Vibration can also be suppressed by the presence of water holes in the partition plate near the liquid level.

Further, the water at the bottom of the water tank 2 is constantly guided to the filtration tank 4 of the water quality control device 3 via the water suction pipe 10 by the feed pump 9, and the filtered and purified water is sent to the cooling coil 1 in the cooling tank 5.
2 and the disperser 14, oxygen is supplied to a predetermined mixing ratio, and the water is circulated to the upper part of the aquarium 2, which prevents deterioration of water quality due to excrement and easily removes suspended matter, etc. In addition, the cooling effect of water can paralyze live fish and suppress their metabolism, preventing fish weight loss and reducing oxygen consumption.

Further, in the water quality control device 3, a filtration tank 4 and a cooling tank 5 are integrally formed side by side with a partition plate 6 interposed therebetween, and the cooling tank 5
A part of the oxygen supplied from the distributor 14 arranged in the filtration tank 4 can be supplied to the upper part of the filtration tank 4 through the ventilation hole 8, so that the circulation is supplied from the upper part of the filtration tank 4. Since oxygen can also be supplied to water, oxygen can be used effectively, and the overall size can be made smaller. The filtration tank 4 has a water quality improver layer 45 such as a bagged oyster shell layer 42, a coral stone layer 43, a zeolite layer 44, a filter cloth 46, and a rock filter 47 alternately laminated on a screen-like bottom plate 41. Since it has a structure in which suspended matter removal layers 48 are sequentially laminated, when the dirty water in the water tank 2 is spouted into the upper part of the filtration tank, the suspended matter is first removed by the filter cloth 46 and the rock filter 47, and then the suspended matter is removed. Ammonia nitrogen dissolved in the water in the excrement is adsorbed in the zeolite layer 45, and the water, which has become acidic due to the dissolution of carbon dioxide gas, is neutralized in the oyster shell layer 42 and the coral stone layer 43, and the pH is adjusted. At the same time, calcium components are replenished and water can be filtered and purified to suit the habitat of live fish.

Furthermore, air reservoirs 241 and 251 are provided on the air diffuser pipe 24 arranged at the bottom of the water tank 2 and on the air supply port side of the air elevator 25.
Since the compressed air is brought into a static pressure state by the air reservoir, the air bubbles coming out from the air diffuser pipe and the discharge hole of the air elevator can be uniformly generated, so that the aeration effect becomes smooth.

As explained above, this invention is equipped with a water tank and a control device that circulates and cleans the water in the tank and automatically controls the water temperature and quality to a predetermined water temperature and quality. It is characterized by ensuring a favorable environment for live fish during transportation, and this has very practical effects such as making it possible to transport live fish in large quantities over a long period of time. .

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing one embodiment of a live fish transportation vehicle according to this invention, Fig. 2 is an explanatory diagram showing a systematic diagram, Fig. 3 is an enlarged sectional view showing an aquarium, and Fig. 5 is an enlarged sectional view showing an aquarium. FIG. 6 is an enlarged sectional view of the main part of the air diffuser pipe, FIG. 6 is an enlarged sectional view of the main part of the air elevator, and FIG. 7 is an enlarged sectional view of the main part of the water quality control device. 1... Trailer body, 2... Water tank, 2
1...Lid plate, 22...Exhaust port, 24.
... air diffuser, 25 ... air elevator,
26... Blower, 27... Air filter, 28... Distributor, 29... Oxygen cylinder, 3... Water quality control device, 4...Filter tank, 45...Water quality improver layer, 48...
・Floating matter removal layer, 5...Cooling tank, 6...
・Partition plate, 7...Water port, 8...Vent hole, 9...Feeding pump, 10...Water intake pipe, 11...・Cooler, 12... Cooling coil, 13... Oxygen cylinder, 14...
Distributor, 15... Water pipe, 16, 17...
...Controller.

Claims (1)

[Scope of utility model registration request] An aquarium is equipped with a lid having an exhaust port on the top surface, and a plurality of tiers of cages are arranged to store live fish. a water quality control device that automatically controls the water temperature and oxygen content to a predetermined water temperature and oxygen content by cooling the filtered extinguished water in a cooling tank; In a vehicle equipped with an aeration device that supplies compressed air to release compressed air, the aeration device is arranged at an appropriate interval on the inner side wall facing the front and back of the water tank. and a partition plate having a large number of water passage holes only in the upper half thereof, and a large number of discharge holes arranged on the bottom side of the partition plate and corresponding to the gap between the partition plate and the inner side wall surface of the water tank. and a pair of front and rear air elevators each consisting of a cylindrical body disposed on the left and right opposing inner side walls of the aquarium and having a tip nozzle protruding from the liquid level in the aquarium. A vehicle exclusively for transporting live fish, characterized in that air reservoirs are provided at both ends of the air diffuser pipe through which the compressed air is sent and at a branch of the air pipe leading to the air elevator.