Live fish transport packaging apparatus and method

Abstract

A live fish transportation packaging device and method, including a live bag and a transportation frame, the live bag including a bag body, a first magnetic valve body, and a second magnetic valve body, through the structural linkage of the live bag and the transportation frame, the contaminated water in the live fish chamber is isolated and discharged into the waste water chamber during transportation, and then new water is injected into the live fish chamber, thereby improving the water quality, and the pre-stored oxygen in the new water chamber and the waste water chamber is automatically mixed when communicating with the live fish chamber, thereby improving the oxygen content in the live fish chamber, and the water quality and oxygen are updated to achieve the purpose of prolonging the survival time of the fish in the live bag during transportation.

Description

Technical Field

[0001] This invention relates to the field of live fish transportation technology, specifically to the assembly structure of a live fish transportation packaging equipment and method. Background Technology

[0002] Live fish products are highly susceptible to mass mortality during long-distance transportation due to oxygen deficiency and water pollution, thus losing their original economic value. This is especially true for some extremely fragile live fish products, which require extensive oxygenation and power supply equipment during transport to provide the necessary conditions for survival. This equipment and power supply are bulky, occupying significant transport space and wasting transportation costs. Furthermore, open-system oxygenation can easily pollute the living environment of the live fish, leading to mass mortality.

[0003] Currently, there are two main methods for the live transport of fish, both domestically and internationally: with water and without water. Waterless transport uses chemical or physical methods, employing anesthetics to render the fish unconscious before placing them in containers filled with oxygen or a mist of liquid for transport. This method is not yet suitable for the domestic sales environment.

[0004] Water-based live animal transport is a widely used method, encompassing various forms such as oxygenated live animal bag transport and recirculating water transport vehicles. Recirculating water transport vehicles are relatively expensive.

[0005] Live fish transport using live bags primarily employs sealed bags made of nylon or polyethylene. After adding an appropriate amount of water, the live fish are placed inside and sealed, then oxygen is introduced. The ideal ratio of fish weight to water and oxygen is 1:1:4. Foam boxes are typically used during transport to prevent damage to the live fish bags. This method is simple to operate and low in cost, but it results in limited transport capacity, difficulty in controlling water quality changes, and a low survival rate.

[0006] Existing research indicates that factors affecting the survival and transport of fish mainly include dissolved oxygen, transport water quality, transport temperature, and transport density. Among these, the appropriate amount of water sealed in the live fish bag gradually becomes contaminated by the metabolic waste of the fish as transport time increases, thus shortening the survival time of the fish inside the bag.

[0007] Specifically, (1) ammonia nitrogen: Under sufficient dissolved oxygen conditions, fish consume glycogen through aerobic respiration and produce a large amount of carbon dioxide, which leads to acidification of the surrounding water and blood plasma. When the glycogen is depleted, the fish begin to consume the proteins or amino acids in their bodies to provide energy and metabolize ammonia.

[0008] Ammonia nitrogen is the main component of most nitrogenous waste released by fish and is the final product of protein catabolism. It exists in water in two forms: ionic ammonia and non-ionic ammonia. The ratio of these two forms is affected by parameters such as temperature, pH, and salinity. During long-distance transportation, the concentration of ammonia nitrogen in the water increases, causing ammonia poisoning in fish.

[0009] (2) Nitrite: During live transport, high-density transport may lead to an increase in ammonia nitrogen concentration, an imbalance between bacterial nitrification and denitrification, and nitrite accumulation. High concentrations of nitrite may affect various physiological functions of fish, such as ion regulation, cardiovascular function, respiration, endocrine function, and excretion, thereby damaging fish health and causing death.

[0010] (3) pH value: During transportation, vibration and noise may increase the respiratory and metabolic rate of fish. When the dissolved oxygen content is sufficient, the metabolic product carbon dioxide will accumulate in the water, leading to water acidification and a decrease in pH value.

[0011] Carbon dioxide and ammonia nitrogen, as metabolic byproducts of fish, have long been used as indicators of water quality deterioration in aquaculture and live fish transport. During short-distance fish transport (less than 8 hours), ammonia nitrogen concentrations typically do not increase significantly, while carbon dioxide produced by respiration metabolism leads to rapid acidification of the transport water and a drop in pH. In acidic environments, fish cannot effectively eliminate carbon dioxide produced by their respiration metabolism, resulting in its accumulation in their bodies. This lowers plasma pH and reduces the blood's oxygen-carrying capacity, while also weakening the affinity of hemoglobin for oxygen. Therefore, this condition can trigger acidosis symptoms in fish.

[0012] As can be seen from the above, the quality of transported water has a significant impact on the survival rate of live fish. However, the existing live bag technology cannot effectively and controllably purify the water inside the sealed bag during transportation. This leads to the deterioration of the water quality inside the bag, which damages the live fish, causing them to become ill or even die. Therefore, even with pre-transport cooling to reduce the fish's mortality, the transport time for live bag transportation should not exceed 18 hours to avoid large-scale mortality.

[0013] The limitation on transportation time also restricts the transportation range, affecting the sales scope of live fish products. Although additional equipment such as recirculating aquaculture systems can significantly extend the transportation time to 33 hours while maintaining a survival rate of over 96% by adding ice, water, and oxygen during transportation, this places higher demands on the transportation equipment, thus increasing sales costs.

[0014] Furthermore, the circulating water transport vehicle also needs to control the number of live fish inside the equipment, which creates a conflict between transport density and transport cost.

[0015] Therefore, if the water quality in the sealed live fish bags can be purified in a low-cost and controllable manner during transportation, the survival time of the fish in the live fish bags will be significantly extended, thereby expanding the transportation range and supporting the scale of live fish sales. Summary of the Invention

[0016] To address the shortcomings of the aforementioned technologies, this invention provides a live fish transport and packaging equipment and method.

[0017] The technical solution of the present invention: a live fish transport packaging device, including a live fish bag and a transport frame, wherein the live fish bag includes a bag body, a first magnetic valve body, and a second magnetic valve body, the bag body is provided with a new water chamber, a live fish chamber, and a wastewater chamber separated by a heat-sealed edge, the new water chamber is located vertically above the live fish chamber and a first drainage channel is provided between the new water chamber and the live fish chamber in a vertical direction, the wastewater chamber is located vertically below the live fish chamber and a second drainage channel is provided between the wastewater chamber and the live fish chamber in a vertical direction, and the new water chamber and the live fish chamber are provided with a one-way air inflation channel; The first magnetic valve body and the second magnetic valve body are respectively disposed in the first drainage channel and the second drainage channel, and each includes an elastic sealing sleeve, a rigid conduit, a piston, and an elastic reset component. The diameter of the rigid conduit is smaller than the diameter of the first drainage channel and the second drainage channel. The rigid conduit includes a sliding end, a limiting end, and a central sliding hole. The outer circumferential surface of the limiting end is provided with a water inlet that penetrates to the central sliding hole. The elastic sealing sleeve is sleeved on the outer circumferential surface of the sliding end. The outer circumferential surface of the elastic sealing sleeve is in sealing fit with the first drainage channel and the second drainage channel, and the inner circumferential surface of the elastic sealing sleeve is in sealing fit with the outer end of the sliding end. The piston component includes a guide rod, a magnetic cap, and a reset cap. The diameter of the guide rod is smaller than that of the central sliding hole. The guide rod is inserted into the central sliding hole, and a cross flange with a diameter adapted to the central sliding hole is provided axially on its outer circumferential surface. A water passage gap is formed between the cross flange and the guide rod. The magnetic cap is fixedly connected to the guide rod on one side of the sliding end, and a sealing ring is provided on the magnetic cap to close the central sliding hole. The reset cap is fixedly connected to the guide rod on one side of the limiting end. The elastic reset member is compressed between the reset cap and the limiting end, driving the cap made of magnetic material to move toward the limiting band and keeping the sealing ring closed in the center sliding hole. The reset caps of the first magnetic valve body and the second magnetic valve body are both located on the side adjacent to the live fish chamber in the first and second drainage channels, respectively. The transport frame includes a storage trough, a first electromagnet suction cup located at the bottom of the storage trough, and a second electromagnet suction cup located at the bottom of the transport frame. The live bag is placed in the storage trough, the wastewater chamber is adjacent to the bottom of the storage trough and the first electromagnet suction cup, and the fresh water chamber is adjacent to the opening of the storage trough. The transport frames are stacked, and the second electromagnet chuck is activated to attract the magnetic material cap of the second magnetic valve body to move toward the wastewater chamber side, exposing the central sliding hole. The water in the live fish chamber flows into the wastewater chamber through the second drainage channel. The first electromagnet chuck is activated after the second electromagnet chuck is closed and the magnetic material cap of the second magnetic valve body is reset. The magnetic material cap of the first magnetic valve body moves toward the new water chamber side, exposing the central sliding hole. The water in the new water chamber flows into the live fish chamber through the first hydrophobic channel.

[0018] A further feature of the present invention is that the transport frame is equipped with a lithium battery power supply module and a PLC controller that is signal-connected to the first electromagnet chuck and the second electromagnet chuck. The PLC controller controls the start and stop of the first electromagnet chuck and the second electromagnet chuck by timing and delay.

[0019] A further feature of the present invention is that the outer peripheral surface of the live bag is provided with a plurality of positioning films, each positioning film having a positioning hole. The transport frame receiving groove is provided with a plurality of placement positions at intervals corresponding to the volume of the live bag. Each placement position is provided with a plurality of uprights corresponding to the number and position of the positioning holes of the live bag at that location. Each positioning film of the live bag is respectively fitted onto each upright through the positioning hole to stabilize each live bag in the transport frame and maintain its independent posture.

[0020] A further feature of the present invention is that the live fish bag is provided with a handle on the vertically above the new water chamber, and an opening is provided on one side of the new water chamber, the live fish chamber, and the wastewater chamber. The opening is heat-sealed after the first magnetic valve body, the second magnetic valve body, the live fish, and the water are inserted.

[0021] A further feature of the present invention is that the one-way inflation channel is a one-way inflation valve or a one-way inflation valve diaphragm, and the wastewater chamber is provided with a one-way inflation channel.

[0022] The technical solution of the present invention is a method for transporting and packaging live fish, applied to the live fish transporting and packaging equipment described in any one of claims 1-5, comprising the following steps: S1. Install a first magnetic valve body and a second magnetic valve body in the first and second hydrophobic channels of the live fish bag, respectively, and ensure that the reset caps of the first and second magnetic valve bodies are located on the side adjacent to the live fish chamber in both the first and second hydrophobic channels. S2. Place fish and water in the live fish chamber, place water in the new water chamber, and drain the water from the wastewater chamber. Then heat-seal the opening of the live fish bag, and with the normal closing of the first and second magnetic valves, the new water chamber, live fish chamber, and wastewater chamber form independent closed chambers. Then inject oxygen. S3. Place the live bag into the transport frame, with the wastewater chamber near the bottom of the collection tank and the first electromagnet suction cup, and the new water chamber near the opening of the collection tank. The transport frames are stacked and loaded into the transport vehicle; After the preset transportation time is reached, the second electromagnet chuck is activated to attract the magnetic material cap of the second magnetic valve body and move it toward the wastewater chamber, exposing the central sliding hole. The water in the live fish chamber flows into the wastewater chamber through the second drainage channel. The first electromagnet chuck is activated after the second electromagnet chuck is closed and the magnetic material cap of the second magnetic valve body is reset. The magnetic material cap of the first magnetic valve body moves toward the new water chamber side, exposing the central sliding hole. The water in the new water chamber flows into the live fish chamber through the first hydrophobic channel.

[0023] The beneficial effects of this invention are as follows: By linking the live fish bag and the transport frame, during the transport process, polluted water in the live fish chamber is discharged into the wastewater chamber for isolation, and then fresh water is injected into the live fish chamber, thereby improving the water quality. At the same time, the oxygen pre-stored in the fresh water chamber and the wastewater chamber automatically mixes when connected to the live fish chamber, increasing the oxygen content in the live fish chamber. This renewal of water quality and oxygen aims to extend the survival time of fish during the transport of live fish in the live fish bag.

[0024] The design of this device and method eliminates the need for large equipment and water tanks, thus expanding the transportation options. Water replacement and oxygenation are completed within the live animal bags, and the stacking of transport frames prevents collisions and compression between the live animal bags, thereby improving the utilization of transport space. Attached Figure Description

[0025] Figure 1 The structure of Embodiment 1 of the present invention Figure 1 ; Figure 2 The structure of Embodiment 1 of the present invention Figure 2 ; Figure 3 The structure of Embodiment 1 of the present invention Figure 3 ; Figure 4 The structure of Embodiment 1 of the present invention Figure 4 ; Figure 5 The structure of Embodiment 1 of the present invention Figure 5 ; Figure 6 The structure of Embodiment 1 of the present invention Figure 6 ; Figure 7 The structure of Embodiment 1 of the present invention Figure 7 ; Figure 8 The structure of Embodiment 1 of the present invention Figure 8 ; Figure 9 The structure of Embodiment 1 of the present invention Figure 9 ; Among them, there are: body bag 1, bag body 11, heat-sealed edge 12, new water chamber 13, live fish chamber 14, wastewater chamber 15, first drainage channel 16, second drainage channel 17, one-way air inflation channel 18, handle 19, positioning diaphragm 20, transport frame 2, storage slot 21, column 211, first electromagnet chuck 22, second electromagnet chuck 23, first magnetic valve body 3, elastic sealing sleeve 31, rigid conduit 32, sliding end 321, limiting end 322, central sliding hole 323, water inlet 324, piston 33, guide rod 331, magnetic material cap 332, reset cap 333, cross flange 334, water passage gap 335, sealing ring 336, elastic reset component 34, and second magnetic valve body 4.

[0026] To better illustrate this embodiment, some parts in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual size of the product. Furthermore, the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Detailed Implementation

[0027] To make the technical solution and advantages of this application clearer, the technical solution of this application will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this application, and are only used to explain this application, not to limit this application. It should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings. Other related parts can be referred to the general design. In the absence of conflict, the embodiments and technical features in the embodiments of this application can be combined with each other to obtain new embodiments.

[0028] The invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-9 As shown, A live fish transport packaging device (Class 5) includes a live fish bag 1 and a transport frame 2. The live fish bag 1 includes a bag body 11, a first magnetic valve body 3, and a second magnetic valve body 4. The bag body 11 is provided with a new water chamber 13, a live fish chamber 14, and a wastewater chamber 15 separated by a heat-sealed edge 12. The new water chamber 13 is located vertically above the live fish chamber 14 and has a first drainage channel 16 arranged vertically between it and the live fish chamber 14. The wastewater chamber 15 is located vertically below the live fish chamber 14 and has a second drainage channel 17 arranged vertically between it and the live fish chamber 14. The new water chamber 13 and the live fish chamber 14 are provided with a one-way air inflation channel 18. The first magnetic valve body 3 and the second magnetic valve body 4 are respectively disposed in the first drainage channel 16 and the second drainage channel 17, and each includes an elastic sealing sleeve 31, a rigid conduit 32, a piston 33, and an elastic reset component 34 (such as a spring or elastic strip). The diameter of the rigid conduit 32 is smaller than the diameter of the first drainage channel 16 and the second drainage channel 17. The rigid conduit 32 includes a sliding end 321, a limiting end 322, and a central sliding hole 323. The outer circumferential surface of the limiting end 322 is provided with a water inlet 324 that penetrates to the central sliding hole 323. The elastic sealing sleeve 31 is sleeved on the outer circumferential surface of the sliding end 321. The outer circumferential surface of the elastic sealing sleeve 31 is sealed with the first drainage channel 16 and the second drainage channel 17, and the inner circumferential surface of the elastic sealing sleeve 31 is sealed with the outer circumferential surface of the sliding end 321. The piston component 33 includes a guide rod portion 331, a magnetic material cap portion 332, and a reset cap portion 333. The diameter of the guide rod portion 331 is smaller than that of the central sliding hole 323. The guide rod portion 331 is inserted into the central sliding hole 323, and a cross flange 334 with a diameter adapted to the central sliding hole 323 is provided axially on its outer peripheral surface. A water passage gap 335 is formed between the cross flange 334 and the guide rod portion 331. The magnetic material cap portion 332 is fixedly connected to the guide rod portion 331 on one side of the sliding end 321. A sealing ring 336 that closes the central sliding hole 323 is provided on the magnetic material cap portion 332. The reset cap 333 is fixedly connected to the guide rod 331 on one side of the limiting end 322. The elastic reset member 34 is compressed and disposed between the reset cap 333 and the limiting end 322, driving the magnetic cap 332 to move toward the limiting band side, and keeping the sealing ring 336 closed to the central sliding hole 323. The reset caps 333 of the first magnetic valve body 3 and the second magnetic valve body 4 are both located on the side adjacent to the live fish chamber 14 in the first drainage channel 16 and the second drainage channel 17. The transport frame 2 includes a storage trough 21, a first electromagnet suction cup 22 located at the bottom of the storage trough 21, and a second electromagnet suction cup 23 located at the bottom of the transport frame 2. The live bag 1 is placed in the storage trough 21. The wastewater chamber 15 is adjacent to the bottom of the storage trough 21 and the first electromagnet suction cup 22, and the fresh water chamber 13 is adjacent to the opening of the storage trough 21. The transport frames 2 are stacked, and the second electromagnet chuck 23 is activated to attract the magnetic material cap 332 of the second magnetic valve body 4 to move toward the wastewater chamber 15, exposing the central sliding hole 323. The water in the live fish chamber 14 flows into the wastewater chamber 15 through the second drainage channel 17. The first electromagnet chuck 22 is activated after the second electromagnet chuck 23 is closed and the magnetic material cap 332 of the second magnetic valve body 4 is reset. It attracts the magnetic material cap 332 of the first magnetic valve body 3 to move toward the new water chamber 13, exposing the central sliding hole 323. The water in the new water chamber 13 flows into the live fish chamber 14 through the first drainage channel 16.

[0029] The transport frame 2 is equipped with a lithium battery power supply module and a PLC controller that is connected to the first electromagnet chuck 22 and the second electromagnet chuck 23 by signal. The PLC controller controls the start and stop of the first electromagnet chuck 22 and the second electromagnet chuck 23 by timing and delay.

[0030] The outer periphery of the live bag 1 is provided with a plurality of positioning films 20, each with a positioning hole. The storage slot 21 of the transport frame 2 is provided with a plurality of placement positions at intervals corresponding to the volume of the live bag 1. Each placement position is provided with a plurality of uprights 211 corresponding to the number and position of the positioning holes of the live bag 1 at that position. Each positioning film 20 of the live bag 1 is respectively fitted onto each upright 211 through the positioning hole to stabilize each live bag 1 in the transport frame 2 and maintain its independent posture.

[0031] The live fish bag 1 has a handle 19 vertically above the new water chamber 13, and an opening on one side of the new water chamber 13, the live fish chamber 14, and the wastewater chamber 15. The opening is heat-sealed after the first magnetic valve body 3, the second magnetic valve body 4, the live fish 5, and the water are inserted.

[0032] The one-way inflation channel 18 is a one-way inflation valve or a one-way inflation valve diaphragm, and the wastewater chamber 15 is provided with a one-way inflation channel 18.

[0033] A method for transporting and packaging live fish (Category 5), applied to the live fish (Category 5) transport and packaging equipment as described in any one of claims 1-5, includes the following steps: S1. Install the first magnetic valve body 3 and the second magnetic valve body 4 in the first hydrophobic channel 16 and the second hydrophobic channel 17 of the live fish bag 1 respectively, and make the reset caps 333 of the first magnetic valve body 3 and the second magnetic valve body 4 located on the side adjacent to the live fish chamber 14 in the first hydrophobic channel 16 and the second hydrophobic channel 17 respectively. S2. Place fish 5 and water into the live fish chamber 14, place water into the new water chamber 13, and drain the water from the wastewater chamber 15. Then heat-seal the opening of the live fish bag 1, and cooperate with the normal closing of the first magnetic valve body 3 and the second magnetic valve body 4. The new water chamber 13, the live fish chamber 14, and the wastewater chamber 15 form independent closed chambers. Then inject oxygen. S3. Place the live bag 1 into the transport frame 2, with the wastewater chamber 15 near the bottom of the storage tank 21 and the first electromagnet suction cup 22, and the new water chamber 13 near the opening of the storage tank 21. The transport frames 2 are stacked and loaded into the transport vehicle; After the preset transportation time is reached, the second electromagnet chuck 23 is activated to attract the magnetic material cap 332 of the second magnetic valve body 4 to move toward the wastewater chamber 15, exposing the central sliding hole 323. The water in the live fish chamber 14 flows into the wastewater chamber 15 through the second drainage channel 17. The first electromagnet chuck 22 is activated after the second electromagnet chuck 23 is closed and the magnetic material cap 332 of the second magnetic valve body 4 is reset. It attracts the magnetic material cap 332 of the first magnetic valve body 3 to move toward the new water chamber 13, exposing the central sliding hole 323. The water in the new water chamber 13 flows into the live fish chamber 14 through the first drainage channel 16.

[0034] The beneficial effects of this invention are as follows: Through the structural linkage between the live fish bag 1 and the transport frame 2, during the transport process, after the polluted water in the live fish chamber 14 is discharged into the wastewater chamber 15 for isolation, fresh water is injected into the live fish chamber 14, thereby improving the water quality. At the same time, the oxygen pre-stored in the fresh water chamber 13 and the wastewater chamber 15 is automatically mixed when connected with the live fish chamber 14, increasing the oxygen content in the live fish chamber 14. The renewal of water quality and oxygen achieves the purpose of extending the survival time of the fish 5 during the transport of the live fish bag 1.

[0035] The design of this device and method eliminates the need for large equipment and water tanks, expanding transportation options. Water replacement and oxygenation are completed within the live animal bags 1, and the stacking of transport frames 2 prevents collisions and compression between the live animal bags 1, improving the utilization of transport space. The technical solution of this application has now been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent modifications or substitutions to the relevant technical features, and the technical solutions resulting from these modifications or substitutions will all fall within the scope of protection of this application.

Claims

1. A live fish transport and packaging device, characterized in that: The invention includes a live animal bag and a transport frame. The live animal bag includes a bag body, a first magnetic valve body, and a second magnetic valve body. The bag body is provided with a new water chamber, a live fish chamber, and a wastewater chamber separated by a heat-sealed edge. The new water chamber is located vertically above the live fish chamber and has a first drainage channel in the vertical direction between it and the live fish chamber. The wastewater chamber is located vertically below the live fish chamber and has a second drainage channel in the vertical direction between it and the live fish chamber. The new water chamber and the live fish chamber are provided with one-way air inflation channels. The first magnetic valve body and the second magnetic valve body are respectively disposed in the first drainage channel and the second drainage channel, and each includes an elastic sealing sleeve, a rigid conduit, a piston, and an elastic reset component. The diameter of the rigid conduit is smaller than the diameter of the first drainage channel and the second drainage channel. The rigid conduit includes a sliding end, a limiting end, and a central sliding hole. The outer circumferential surface of the limiting end is provided with a water inlet that penetrates to the central sliding hole. The elastic sealing sleeve is sleeved on the outer circumferential surface of the sliding end. The outer circumferential surface of the elastic sealing sleeve is in sealing fit with the first drainage channel and the second drainage channel, and the inner circumferential surface of the elastic sealing sleeve is in sealing fit with the outer end of the sliding end. The piston component includes a guide rod, a magnetic cap, and a reset cap. The diameter of the guide rod is smaller than that of the central sliding hole. The guide rod is inserted into the central sliding hole, and a cross flange with a diameter adapted to the central sliding hole is provided axially on its outer circumferential surface. A water passage gap is formed between the cross flange and the guide rod. The magnetic cap is fixedly connected to the guide rod on one side of the sliding end, and a sealing ring is provided on the magnetic cap to close the central sliding hole. The reset cap is fixedly connected to the guide rod on one side of the limiting end. The elastic reset member is compressed between the reset cap and the limiting end, driving the cap made of magnetic material to move toward the limiting band and keeping the sealing ring closed in the center sliding hole. The reset caps of the first magnetic valve body and the second magnetic valve body are both located on the side adjacent to the live fish chamber in the first and second drainage channels, respectively. The transport frame includes a storage trough, a first electromagnet suction cup located at the bottom of the storage trough, and a second electromagnet suction cup located at the bottom of the transport frame. The live bag is placed in the storage trough, the wastewater chamber is adjacent to the bottom of the storage trough and the first electromagnet suction cup, and the fresh water chamber is adjacent to the opening of the storage trough. The transport frames are stacked, and the second electromagnet chuck is activated to attract the magnetic material cap of the second magnetic valve body to move toward the wastewater chamber side, exposing the central sliding hole. The water in the live fish chamber flows into the wastewater chamber through the second drainage channel. The first electromagnet chuck is activated after the second electromagnet chuck is closed and the magnetic material cap of the second magnetic valve body is reset. The magnetic material cap of the first magnetic valve body moves toward the new water chamber side, exposing the central sliding hole. The water in the new water chamber flows into the live fish chamber through the first hydrophobic channel.

2. The live fish transport and packaging equipment and method according to claim 1, characterized in that: The transport frame is equipped with a lithium battery power supply module and a PLC controller that is connected to the first and second electromagnet chucks via signals. The PLC controller controls the start and stop of the first and second electromagnet chucks via timed and delayed control.

3. The live fish transport and packaging equipment and method according to claim 1, characterized in that: The outer periphery of the live bag is provided with a number of positioning films, each with a positioning hole. The transport frame storage slot is provided with a number of placement positions at intervals corresponding to the volume of the live bag. Each placement position is provided with a number of uprights corresponding to the number and position of the positioning holes of the live bag at that location. Each positioning film of the live bag is respectively fitted onto each upright through the positioning hole to stabilize each live bag in the transport frame and maintain its independent posture.

4. The live fish transport packaging equipment and method according to claim 1, characterized in that: The live fish bag has a handle on the vertically above the new water chamber and an opening on one side of the new water chamber, the live fish chamber, and the wastewater chamber. The opening is heat-sealed after the first magnetic valve body, the second magnetic valve body, the live fish, and the water are inserted.

5. The live fish transport and packaging equipment and method according to claim 1, characterized in that: The one-way inflation channel is a one-way inflation valve or a one-way inflation valve diaphragm, and the wastewater chamber is provided with a one-way inflation channel.

6. A method for transporting and packaging live fish, characterized in that: The live fish transport packaging equipment described in any one of claims 1-5 includes the following steps: S1. Install a first magnetic valve body and a second magnetic valve body in the first and second hydrophobic channels of the live fish bag, respectively, and ensure that the reset caps of the first and second magnetic valve bodies are located on the side adjacent to the live fish chamber in both the first and second hydrophobic channels. S2. Place fish and water into the live fish chamber, place water into the new water chamber, and drain the water from the wastewater chamber. Then, heat-seal the opening of the live fish bag. In conjunction with the normal closing of the first and second magnetic valves, the new water chamber, the live fish chamber, and the wastewater chamber form independent closed chambers. S3. Place the live bag into the transport frame, with the wastewater chamber near the bottom of the collection tank and the first electromagnet chuck, and the new water chamber near the opening of the collection tank. The transport frames are stacked and loaded into the transport vehicle; After the preset transportation time is reached, the second electromagnet chuck is activated to attract the magnetic material cap of the second magnetic valve body and move it toward the wastewater chamber, exposing the central sliding hole. The water in the live fish chamber flows into the wastewater chamber through the second drainage channel. The first electromagnet chuck is activated after the second electromagnet chuck is closed and the magnetic material cap of the second magnetic valve body is reset. The magnetic material cap of the first magnetic valve body moves toward the new water chamber side, exposing the central sliding hole. The water in the new water chamber flows into the live fish chamber through the first hydrophobic channel.

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