High-density live fish transport case suitable for pickup truck
By introducing a liquid oxygen pure oxygenation system and a biological purification tank into the live fish transport box in a pickup truck, the problems of insufficient oxygenation and water quality treatment were solved, achieving high-density transportation and high survival rate, while reducing transportation costs.
Patent Information
- Application Number
- CN202520412974.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-11
AI Technical Summary
The existing oxygenation system in the live fish transport boxes in pickup trucks is inefficient and lacks water treatment capabilities, resulting in high transportation costs and low survival rates.
It adopts a liquid oxygen pure oxygen aeration system combined with a nano-ceramic aeration disc, and is equipped with a biological purification tank that uses multiphase polymer biological coagulation packing to treat water quality. The oxygen flow rate and water purification are controlled by a circulating water pump and a flow meter.
It increased transport density, reduced transport costs, significantly improved the survival rate of live fish, ensured clean water quality, and reduced stress responses in fish.
Smart Images

Figure CN223816777U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to live fish transportation technical field, concretely to a high density live fish transportation box suitable for pickup truck. BACKGROUND
[0002] At present, the live fish transportation box in the trunk of most pickup trucks in China has two major technical defects: first, the oxygenation system is inefficient, and the traditional air aeration method cannot meet the high-density live fish transportation demand, resulting in high transportation cost. Second, the water quality treatment capacity is lacking. During the live fish transportation process, the fish will inevitably have emergency defecation, producing toxic substances such as ammonia nitrogen and salt, which dissolve in the water body. If there is a lack of corresponding water treatment equipment, it will cause strong stress reaction of fish, accelerate the death of fish, and cause great transportation loss.
[0003] Therefore, it is urgent to develop a new generation of integrated transportation equipment, a high-density live fish transportation box suitable for pickup trucks with high survival rate. UTILITY MODEL CONTENT
[0004] In view of the deficiencies of the prior art, the utility model provides a high-density live fish transportation box suitable for pickup trucks.
[0005] To achieve the above purpose, the utility model provides the following technical scheme:
[0006] A high-density live fish transportation box suitable for pickup trucks, comprising: a live fish transportation box, an oxygen cylinder, a biological purification barrel, a circulating water pump, a quick-opening fish feeding cover, a flow meter and a PU hose;
[0007] The top of the live fish transportation box is provided with the quick-opening fish feeding cover and the oxygen cylinder. The outlet of the oxygen cylinder is connected with the first end of the PU hose. The second end of the PU hose is connected with a nano ceramic oxygenation disc inside the live fish transportation box. The flow meter is arranged on the PU hose to control the oxygen flow rate. The front end of the live fish transportation box is provided with the biological purification barrel and the circulating water pump. The water inlet of the circulating water pump is connected with the bottom of the live fish transportation box, and the water outlet is connected with the bottom of the biological purification barrel.
[0008] Preferably, the top of the live fish transportation box is provided with an air outlet valve one.
[0009] Preferably, the live fish transportation box is provided with a fish unloading port and a control cabinet.
[0010] Preferably, the top of the biological purification barrel is provided with a partition one, and the bottom is provided with a partition two. Small holes are uniformly arranged on the partition one and the partition two. The partition one and the partition two are filled with a multi-phase polymer biological coagulation filler. The bottom of the biological purification barrel is provided with a sewage valve, and the top is provided with an air outlet valve two and a water outlet pipeline. The water outlet pipeline is connected with the water inlet of the live fish transportation box.
[0011] Compared with the prior art, this utility model provides a high-density live fish transport box suitable for pickup trucks, which has the following beneficial effects:
[0012] This solution utilizes liquid oxygen and pure oxygen aeration. Oxygen cylinders combined with nano-ceramic oxygenation discs are used to provide oxygen to the live fish transport boxes, which not only increases the oxygen concentration but also greatly increases the transport density of fish, thereby increasing transport output and reducing transport costs.
[0013] In this solution, a biological purification tank filled with multiphase polymer bio-aggregating packing material (specific surface area > 10000m² / m³) is used. Through the nitrification of nitrifying bacteria, toxic substances such as ammonia nitrogen and nitrite produced during fish stress can be decomposed, reducing fish stress and greatly improving the survival rate during transportation. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a top view of the structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the main structure of this utility model;
[0017] Figure 4 This is a side view of the structure of this utility model.
[0018] The components include: 1. Live fish transport box; 2. Oxygen cylinder; 3. Biological purification tank; 31. Partition 1; 32. Partition 2; 4. Circulating water pump; 5. Fish unloading port; 6. Quick-start fish feeding cover; 7. Flow meter; 8. PU hose; 9. Air outlet valve 1; 10. Control cabinet; 11. Sewage valve; 12. Water outlet pipe; 13. Air outlet valve 2. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Reference Figures 1-4 As shown, this embodiment of a high-density live fish transport box suitable for pickup trucks includes a live fish transport box 1, an oxygen cylinder 2, a biological purification tank 3, a circulating water pump 4, a quick-start fish-feeding cover 6, a flow meter 7, and a PU hose 8.
[0021] The live fish transport box 1 is the main structure of the entire transport box, providing living space for the live fish. An oxygen cylinder 2 is fixed to the top of the live fish transport box 1. This arrangement facilitates the supply of oxygen to the live fish transport box without encroaching on the fish's living space. The outlet of the oxygen cylinder 2 is connected to a nano-ceramic oxygenation disc placed inside the live fish transport box 1 via a flow meter 7 and a PU hose 8. The flow meter 7 precisely controls the oxygen flow rate, and the nano-ceramic oxygenation disc evenly disperses oxygen into the water, creating a favorable dissolved oxygen environment for the live fish.
[0022] The inlet of the circulating water pump 4 is connected to the bottom of the live fish transport box 1, and the outlet is connected to the bottom of the biological purification tank 3. This connection method allows the circulating water pump 4 to draw water from the bottom of the live fish transport box 1 into the biological purification tank 3 for purification treatment, ensuring the cleanliness of the water.
[0023] The live fish transport box 1 is equipped with a quick-opening fish-feeding cover 6 on the top, which makes it easy to put the fish into the transport box. The front end is equipped with a fish unloading port 5, which makes it easy to take out the fish after arriving at the destination.
[0024] The biological purification tank 3 is located at the front end of the live fish transport box 1. It has partitions 31 at its bottom and top, with small holes evenly distributed on the partitions 31. Multiphase polymer bio-coagulation packing is filled between the two partitions 31. This structural design allows water to fully contact the multiphase polymer bio-coagulation packing through the small holes. The biofilm pre-attached to the packing can effectively purify harmful substances such as ammonia nitrogen and nitrite produced by fish during emergency defecation.
[0025] In some examples, the inner wall of the live fish transport box 1 is provided with an anti-slip coating. The anti-slip coating can increase the friction between the fish and the box wall, reduce the possibility of the fish being injured due to shaking during transportation, and improve the survival rate of live fish during transportation.
[0026] In some examples, the oxygen cylinder 2 is wrapped with a cushioning layer on the outside. The cushioning layer can play a role in shock absorption and protection, preventing damage to the oxygen cylinder 2 due to bumps during pickup truck driving, and ensuring the stability of oxygen supply.
[0027] In some examples, the connection between the circulating water pump 4 and the live fish transport box 1 and the biological purification tank 3 is equipped with a sealing gasket. The sealing gasket can effectively prevent water leakage, ensure the normal operation of the circulating water system, and improve transportation efficiency.
[0028] In some examples, protective nets are installed at the six quick-release fish-feeding covers and the five fish-unloading openings. The protective nets can prevent fish from escaping during release and retrieval, and at the same time prevent external debris from entering the transport container, affecting water quality and the fish's living environment.
[0029] In some examples, the bottom of the live fish transport box 1 is equipped with adjustable support feet. The adjustable support feet make it easy to adjust the height and level of the transport box according to the size of the pickup truck bed, making the transport more stable.
[0030] The working principle of this utility model is as follows:
[0031] Live fish that have undergone fasting treatment in the aquaculture workshop are placed into the transport box through the quick-opening fish-feeding cover 6 on top. This quick-opening fish-feeding cover 6 features a fast-opening design, allowing for rapid loading of fish. Subsequently, the pressure reducing valve of the oxygen cylinder 2 is opened, adjusting the pressure to 0.2MPa, and the oxygen flow rate is precisely controlled to 1L / min through the flow meter 7. The oxygen is then delivered to the nano-ceramic oxygenation disc through the PU hose 8.
[0032] Once the pickup truck starts, the onboard battery powers the circulating water pump 4, which pumps water from the bottom of the transport container at a flow rate of 20L / min, allowing it to enter the treatment system through the bottom of the biological purification tank 3. The biological purification tank 3 employs a double-partition structure (partition 1 31, partition 2 32), and the biofilm pre-attached to the surface of the multiphase polymer bio-aggregating packing material it fills can purify ammonia nitrogen and nitrite produced by fish emergency defecation.
[0033] During transportation, the vent valve 9 monitors the internal air pressure in real time and automatically releases pressure when it exceeds 0.3 MPa. The water quality monitoring module integrated in the control cabinet 10 continuously displays parameters such as dissolved oxygen and pH value, and staff can adjust the oxygen flow rate via the touch screen on the control cabinet 10. The vent valve 13 on the top of the biological purification tank 3 adopts an anti-backflow design to ensure that the treated water flows back to the transport tank at a flow rate of 15 L / min.
[0034] When the vehicle arrives at its destination, the butterfly valve at the front unloading port 5 is opened. Utilizing the special structural design of the tilted transport box, the live fish automatically flow into the receiving container under gravity. At the same time, the drain valve 11 at the bottom of the biological purification tank 3 opens simultaneously, removing impurities from the surface of the packing material through a backwashing process.
[0035] This transport system, through the synergistic effect of liquid oxygen supply and biological purification, achieves a transport density increase of 20 kg / m³ per unit water volume, while maintaining a stable high survival rate during transport. The microporous structure of the nano-ceramic aeration disc, combined with the adsorption effect of the biofilm, keeps the ammonia nitrogen concentration in the water consistently low, effectively reducing stress responses in fish.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-density live fish transport box suitable for pickup trucks, characterized in that, include: Live fish transport box (1), oxygen cylinder (2), biological purification tank (3), circulating water pump (4), quick-start fish feeding cover (6), flow meter (7) and PU hose (8); The live fish transport box (1) is equipped with a quick-start fish-feeding cover (6) and an oxygen cylinder (2) on its top. The outlet of the oxygen cylinder (2) is connected to the first end of a PU hose (8), and the second end of the PU hose (8) is connected to a nano-ceramic oxygenation disc inside the live fish transport box (1). A flow meter (7) is installed on the PU hose (8) to control the oxygen flow rate. The live fish transport box (1) is equipped with a biological purification tank (3) and a circulating water pump (4) at the front end; The inlet of the circulating water pump (4) is connected to the bottom of the live fish transport box (1), and the outlet is connected to the bottom of the biological purification tank (3).
2. The high-density live fish transport box suitable for pickup trucks as described in claim 1, characterized in that, The live fish transport box (1) is equipped with an air vent valve (9) on its top.
3. A high-density live fish transport box suitable for pickup trucks as described in claim 2, characterized in that, The live fish transport box (1) is equipped with a fish unloading port (5) and a control cabinet (10).
4. A high-density live fish transport box suitable for pickup trucks as described in claim 3, characterized in that, The biological purification tank (3) is provided with a partition 1 (31) at the top and a partition 2 (32) at the bottom. Small holes are evenly arranged on the partition 1 (31) and the partition 2 (32). Multiphase polymer biological coagulation filler is filled between the partition 1 (31) and the partition 2 (32).
5. A high-density live fish transport box suitable for pickup trucks as described in claim 4, characterized in that, The biological purification tank (3) is equipped with a sewage discharge valve (11) at the bottom and an air outlet valve (13) and a water outlet pipe (12) at the top. The water outlet pipe (12) is connected to the water inlet of the live fish transport box (1).