JPH04106968U - Container for transporting live fish - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the cost and weight by eliminating the need for an independent air pump. [Structure] Water is ejected from a throttle nozzle part 36 of a nozzle pipe 35 into a discharge passage 34 provided on the wall surface of a fish tank 2. An air passage 37 with a check valve 39 provided therebetween is opened near the throttle nozzle part 36. When water is ejected from the nozzle pipe 35, air is sucked in from the air passage 37, mixed with water, and then ejected into the circulation space 8. This jetting causes a water flow in the circulation space 8.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The container for transporting live fish according to this invention is capable of transporting various types of fish in a live state by truck. It is used to transport the raw materials to the point of consumption.

0002

[Conventional technology]

Due to consumers' preference for luxury products, fish caught by fishing boats or farmed are becoming less viable. Increasingly, there are many opportunities to transport raw materials to the point of consumption in their original state. Transporting live fish like this If the fish is placed in an aquarium, the water (often seawater) stored in the aquarium is Oxygen (air) is blown into the water, and the water is kept at a low temperature (this varies greatly depending on the type of fish). If the fish originates from the north, it must be kept at a temperature of 5 to 10 degrees Celsius during transportation. Must be.

0003 For this reason, as disclosed in Japanese Utility Model Application Publication No. 63-174669 etc., Air is blown into the water in the aquarium using an air pump such as an ejector type, and the air is fully submerged in the water. In addition to supplying a large amount of oxygen, live fish are transported with ice placed in the water. was.

0004 By the way, when transporting live fish, it is best to transport the fish while they are swimming in an aquarium. It is generally known that it is preferable to maintain freshness. For this reason, this idea was devised devised a container for transporting live fish as shown in Figures 2 and 3.

[0005] This container for transporting live fish is large enough to be placed on the bed of a transport truck. At the same time, lift the entire live fish transportation container onto the loading platform using a forklift, etc. A fish cage 2 is placed on a substrate 1 having sufficient rigidity so that it can be lowered. An electric cooling device 3 for cooling the water stored in the water and an electric cooling device 3 for purifying the water. A dynamic filtration device 4 and a generator for supplying power to the cooling device 3 and the filtration device 4. An electric machine 5 is provided.

[0006] The fish cage 2 is constructed by combining an inner wall 6 and an outer wall 7, each of which is formed into a cylindrical shape. Then, between the outer circumferential surface of the inner wall 6 and the inner circumferential surface of the outer wall 7, water for swimming the fish is poured. A cylindrical circulation space 8 is provided, and an oval-shaped lid 29 closes the upper opening of the circulation space 8. It can be opened and closed freely.

[0007] The cooling device 3 also includes a motor 10 that rotates based on electricity supplied from a power supply unit 9. The compressor 12 driven via the belt 11 and the compressor A condenser 13 that radiates heat and condenses the refrigerant discharged from the refrigerant 12, and this condenser An expansion valve 14 for rapidly expanding the liquid refrigerant discharged from the server 13; After evaporating the refrigerant discharged from the expansion valve 14, the evaporator returns it to the compressor 12. evaporator 15, and a heat exchange tube 16 is placed around this evaporator 15. By arranging this, the evaporator 15 part has a double pipe structure, and the evaporator 1 The water flowing inside the heat exchange tube 16 can be freely cooled by the refrigerant flowing inside the heat exchange tube 5. Ru.

[0008] On the other hand, the bottom of the fish tank 2 and one end of the heat exchange tube 16 are connected to the feeding tube. The tube 17 connects the other end of the heat exchange tube 16 and the discharge port provided on the side of the fish tank 2. 18 and 18 are connected to each other by a return tube 19, and are connected to the above-mentioned delivery tube. In the middle of the tube 17, from the fish tank 2 side, a filter 20 with a built-in filter and an electric Driven by a dynamic motor 32, it sucks out the water in the fish cage 2 and performs the heat exchange. A water pump 21 that sends water toward the tube 16 is provided, and this water pump 21 and The filter 20 and the filter 20 constitute an electric filter device 4. Also, the above discharge port 18, 18 are provided close to inclined or parallel to the circulation space 8 of the fish cage 2, and By forcefully discharging water from the outlets 18, 18, a water flow is created in the circulation space 8. It is designed to cause

[0009] In addition, in FIG. 3, 22 is a temperature sensor for detecting the water temperature in the circulation space 8; is a temperature sensor for detecting the refrigerant temperature at the outlet of the evaporator 15. The detection signals of the temperature sensors 22 and 23 are sent to the motor 10 and the capacitor 13. ON/OFF of the motor fans 26, 26 for blowing air, and the compressor 12. It is input to a controller 25 for controlling the connection and disconnection of the attached electromagnetic clutch 24. or, The detection signal of the water level sensor 27 provided at the bottom of the circulation space 8 is input to the controller 25, The water pump 21 is prevented from being operated when there is no water in the circulation space 8. ing.

0010 In addition to being supplied with electricity from the generator 5, the power supply unit 9 is also supplied with power through a power cord 28. Therefore, it can also be powered from a commercial power source (AC200V, 50/60Hz). So When using commercial power, stop the power supply from the generator 5 and A rotating light 33 provided on the top surface of the generator 5 is turned on.

[0011] Furthermore, the fish cage 2 has a migration space 8 by illuminating the migration space 8 of the fish cage 2. Fluorescent lamps 30 are installed to make it possible to observe the situation inside the space 8, and water stored in the circulation space 8 is emptied. An air pump 31 for blowing air is attached.

0012 The container for transporting live fish configured as described above is loaded with each substrate on the bed of a truck. Use it when it is placed. When commercial power is not available, such as when a truck is running, , the cooling device 3 is operated by being supplied with electric power from the generator 5 that has a built-in engine. The water temperature in the fish tank 2 is adjusted to an appropriate value, and the electricity supplied from the generator 5 is also adjusted. The water in the fish tank 2 is kept in a clean state by the filtration device 4 which is driven by power. dripping

[0013] That is, the motor is powered by the motor 10 which is supplied with power from the generator 5 via the power supply unit 9. When the compressor 12 is driven, high temperature and high pressure refrigerant is discharged from the compressor 12. Served. This refrigerant is blown into the condenser 1 by motor fans 26, 26. After being cooled and condensed while passing through 3, it rapidly expands by passing through expansion valve 14. and evaporate within the evaporator 15, lowering the temperature of the evaporator 15. .

[0014] On the other hand, based on the operation of the water pump 21 which is also supplied with power from the generator 5, the fish tank 2 The water in the circulation space 8 of the evaporator 15 is sucked out through the filter 20. The heat exchanger tube 16 is fed from one end thereof into the heat exchange tube 16 disposed around the periphery.

[0015] In this way, the water sent into the heat exchange tube 16 is 6 is cooled by the evaporator 15 while flowing from one end to the other end. After the temperature drops, the raw material is discharged through the return tube 19 and the discharge ports 18, 18. It is returned to the circulation space 8 of the screen 2. The water whose temperature has decreased is circulated through the discharge ports 18 and 18. Since the water is discharged vigorously into the space 8, a water flow is generated in the migration space 8, and the fish tank 2 The fish placed inside are encouraged to migrate through the migration space 8.

[0016] The water temperature in the circulation space 8 is constantly monitored by a temperature sensor 22, and this temperature Based on the detection signal from the sensor 22, the motor 10 and the capacitor 13 ON/OFF of motor fans 26, 26 and compressor 12 for blowing air to Since the connection and disconnection of the electromagnetic clutch 24 attached to the water tank is controlled, the above water temperature is always kept at the optimum value. It will be done. In addition, since the water in the circulation space 8 always circulates while passing through the filtration device 4, the water in the circulation space 8 is The water in the space 8 is kept clean and there is no need to replace the water during transportation. still, A temperature sensor 23 that detects the refrigerant temperature at the outlet of the evaporator 15 is connected to the evaporator 15. To prevent the water in the heat exchange tube 16 from freezing due to an excessive drop in the temperature of the tube 15, Controls ON/OFF of the motor 10 and connection/disconnection of the electromagnetic clutch 24.

[0017]

[Problem that the idea aims to solve]

However, in the case of the container for transporting live fish mentioned above, air is used to pump air into the water. Since the pump 31 and the discharge ports 18, 18 were provided independently from each other, there were many components. Not only does this increase the weight and manufacturing cost, but also the electric power required to drive the air pump 31 is increased. Since this is necessary, the capacity of the generator 5 must be increased accordingly.

[0018] The container for transporting live fish of this invention was conceived in consideration of the above-mentioned circumstances. Ru.

[0019]

[Means to solve the problem]

The container for transporting live fish of the present invention has an inner wall and an outer wall each having a cylindrical shape. A cylindrical structure that can freely store water between the outer circumferential surface of the inner wall and the inner circumferential surface of the outer wall. When water is stored in a fish cage with a migration space and a part of this fish cage, A discharge flow path provided in a portion located below the water surface with an opening only to the circulation space. Then, insert the throttle nozzle formed at one end into the discharge flow path, and insert the other end outside the fish tank. A nozzle pipe that protrudes from An air passage with an opening on the side and the other end communicating with the outside air, and an air passage installed in the middle of this air passage. and a check valve that opens only when outside air is sucked into the discharge flow path, and a part of the fish tank mentioned above. , when water is stored in this fish tank, there is an inlet provided in the part located below the water surface. , a pump means for sending water sucked in from the suction port into the nozzle pipe, By opening the discharge passage in the circumferential direction of the circulation space, the pump means can be operated. Sometimes, it is configured to cause a water flow in the circulation space.

[0020]

[Effect]

In the case of the container for transporting live fish of the present invention constructed as described above, the pump means is operated. By doing so, the water in the circulation space is sucked in through the suction port, and the water is drawn into the throttle nozzle at one end of the nozzle pipe. When forcefully discharges into the discharge passage from the There is negative pressure inside. As a result, the check valve in the air passage is pushed open by atmospheric pressure, and this occurs. Outside air is drawn into the discharge flow path through the air passage.

[0021] As described above, the air sucked into the discharge flow path passes through the above-mentioned throttle nozzle within this discharge flow path. After mixing with the water jetting out from the nozzle part, it is vigorously discharged toward the circulation space. . The above discharge flow path is open in the circumferential direction of the circulation space, so the water mixed with each other By forcefully discharging air and air from the discharge flow path into the circulation space, causes a flow.

[0022]

【Example】

FIG. 1 is a partial cross-sectional view corresponding to the enlarged A-A cross section of FIG. 2, showing an embodiment of the present invention. It is.

[0023] The container for transporting live fish of the present invention is the container for transporting live fish shown in Figures 2 and 3 above. The air pump 31 is omitted, and instead, the discharge ports 18 and 18 are shown in FIG. It is configured as follows.

[0024] A part of the outer wall 7 made of synthetic resin that constitutes the fish tank 2, which stores water inside the fish tank 2. In this case, a discharge passage 34 is provided in the portion located below the water surface, and this discharge passage 34 is Only the circulation space 8 existing inside the outer wall 7 is opened.

[0025] In addition, a nozzle pipe 35 made of a metal pipe or the like is inserted into the outer wall 7, and this nozzle pipe 35 is inserted into the outer wall 7. A throttle nozzle portion 36 formed at one end of the nozzle tube 35 is inserted into the discharge flow path 34. ing. The other end of this nozzle pipe 35 is made to protrude outside the fish cage 2, and this protrusion is The downstream end of the return tube 19 (FIG. 3) is connected to the outlet.

[0026] Further, an air passage 37 is formed inside the outer wall 7, and one end of this air passage 37 is formed inside the outer wall 7. , a part of the discharge flow path 34 is opened near the throttle nozzle section 36 . Up One end of a tube 38 is connected to the other end of the air passage 37. By opening the end at a position higher than the water surface in the circulation space 8, the air passage 3 The inside of 7 is communicated with the outside air. In the middle of this air passage 37, outside air is A check valve 39 is provided that opens only when suctioning into the discharge flow path 34.

[0027] Further, the downstream half of the discharge flow path 34 has a gas that protrudes slightly from the inner surface of the outer wall 7. By constructing the side wall 40, this discharge flow path 34 is arranged in the circumferential direction of the circulation space 8. When the water supply pump 21 (FIG. 3), which is the pumping means, is operated, the circulation space is opened. 8 to cause water flow.

[0028] In the case of the container for transporting live fish of the present invention configured as described above, the water pump 21 is By operating, water in the recirculation space 8 is sucked in from the suction port, and the water is sent to the filter 20. The nozzle is then from the throttle nozzle part 36 provided at one end of this nozzle pipe 35. When the discharge flow is vigorously discharged into the discharge flow path 34, this discharge flow is caused by the venturi action. The pressure inside the passage 34 becomes negative.

[0029] As a result, the check valve 39 in the middle of the air passage 37 is pushed open by atmospheric pressure, and this air Outside air is sucked into the discharge flow path 34 through the passage 37 .

[0030] The air sucked into the discharge passage 34 as described above rises within this discharge passage 34. After mixing with the water spouted from the throttle nozzle part 36, it is guided to the guide wall 40. Then, it is vigorously discharged toward the circulation space 8. Configures the downstream half of the discharge flow path 34 The downstream end of the guide wall 40 is approximately parallel to the inner surface of the outer wall 7, and the downstream end of the guide wall 40 is approximately parallel to the inner surface of the outer wall 7. 4 is open in the circumferential direction of the circulation space 8, so water and air mixed with each other are discharged. By vigorously discharging from the outlet flow path 34 into the circulation space 8, no flow is generated in the circulation space 8. This is caused. The fish placed in the migration space 8 of the fish tank 2 follow this flow. Swim against the flow.

[0031]

[Effect of the idea]

The container for transporting live fish of the present invention is constructed and functions as described above, but This eliminates the need for an air pump to blow air into the tank, and also reduces the capacity of the generator. Therefore, containers for transporting live fish can be made cheaper and lighter.

[Brief explanation of drawings]

FIG. 1 is a partial cross-sectional view corresponding to the enlarged AA cross section of FIG. 2, showing an embodiment of the present invention.

FIG. 2 is a perspective view of the previously devised container for transporting live fish.

FIG. 3 is a circuit diagram as well.

[Explanation of symbols]

1 board 2 Fish tank 3 Cooling device 4 Filtration device 5 Generator 6 Inner wall 7 Exterior wall 8 Migration space 9 Power supply unit 10 motor 11 Belt 12 Compressor 13 Capacitor 14 Expansion valve 15 Evaporator 16 Heat exchange tube 17 Delivery tube 18 Discharge port 19 Return tube 20 Filter 21 Water pump 22 Temperature sensor 23 Temperature sensor 24 Electromagnetic clutch 25 Controller 26 Motor fan 27 Water level sensor 28 Power cord 29 Lid 30 Fluorescent light 31 Air pump 32 Motor 33 Rotating light 34 Discharge channel 35 Nozzle pipe 36 Aperture nozzle part 37 Air passage 38 tube 39 Check valve 40 Guide wall

Claims (1)

[Scope of utility model registration request] Claim 1: A fish cage that is constructed by combining an inner wall and an outer wall, each of which is formed into a cylindrical shape, and has a cylindrical circulation space that can freely store water between the outer circumferential surface of the inner wall and the inner circumferential surface of the outer wall. and,
A part of the fish cage that is located below the water surface when water is stored in the fish cage is provided with a discharge flow path that is opened only to the circulation space, and a throttle nozzle formed at one end. A nozzle pipe inserted into the discharge flow path with the other end protruding outside the fish tank, one end of which is part of the discharge flow path and opens near the throttle nozzle portion, and the other end communicates with the outside air. a check valve installed in the middle of this air passage that opens only when outside air is sucked into the discharge flow path; It consists of an inlet provided in a portion located below the water surface and a pump means for sending water sucked in from the inlet into the nozzle pipe, and by opening the discharge flow path in the circumferential direction of the circulation space, the A container for transporting live fish that generates a water flow in the migratory space when the pump means is operated.