A fish fry transport device for fish farming

By combining a liquid oxygen supply system and an intelligent monitoring module with a tiered transportation structure, the problems of uneven oxygen supply and insufficient water quality monitoring in traditional fish fry transportation devices have been solved, thereby improving the safety and survival rate of fish fry transportation.

CN224356868UActive Publication Date: 2026-06-16HUBEI WANWAN LAKE FATHEAD FISH BREEDING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI WANWAN LAKE FATHEAD FISH BREEDING CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Traditional fish fry transport devices suffer from uneven oxygen supply and large pressure fluctuations, which can easily lead to oxygen deprivation stress or mechanical damage to fish fry. They also lack water quality monitoring and emergency response capabilities, and are not convenient to operate.

Method used

It uses a liquid oxygen storage tank with a vaporizer and pressure reducing device, and forms microbubbles to increase oxygen through a nano aeration disc. An integrated dissolved oxygen detector monitors in real time and triggers a low oxygen alarm. The compartment design avoids squeezing the fish fry, and the combination of casters and folding handles makes it easy to operate.

Benefits of technology

This ensures the safety and efficiency of fish fry transportation, maintains stable dissolved oxygen levels in the water, improves survival rates, and guarantees the reliability of long-distance transportation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224356868U_ABST
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Abstract

The utility model discloses a kind of fry transport devices for fish culture, including box, boost handle and moving wheel, independent groove is equipped in box and is separated by detachable partition, each groove is configured with dissolved oxygen detector and oxygen supply branch pipe connected by screw thread interface, nanometer aerator disc is equipped at branch pipe end. Box bottom integrates liquid oxygen oxygen supply system, containing double-layer vacuum heat storage tank, gasifier and pressure reducing valve, liquid oxygen is delivered by pressure stabilizing after gasification through oxygen supply pipeline, pipeline is equipped with one-way check valve to prevent backflow. Device monitors water quality in real time through dissolved oxygen detector, triggers sound-light alarm when low oxygen, and display screen displays data synchronously. Independent groove design realizes classified transport, universal wheel and folding handle combination improve mobility, overall structure is protected by modular oxygen supply, intelligent monitoring and stratification, significantly improves fry transport survival rate and operation safety, suitable for fry transfer scene of aquaculture industry chain.
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Description

Technical Field

[0001] This utility model relates to the field of fish farming and transportation, and in particular to a fish fry transportation device for fish farming. Background Technology

[0002] In the process of aquaculture, due to geographical limitations, it is necessary to transport fish fry (juveniles) from the place of origin to the breeding area. Whether by ship or truck, transportation equipment is required during the transportation process. Using transportation equipment to transport fish fry can improve the survival rate and reduce losses.

[0003] Traditional transport devices often use air pumps or high-pressure gas cylinders for oxygen supply, which can lead to uneven oxygen supply and large pressure fluctuations, causing fish fry to suffer from hypoxia stress or mechanical damage, making it difficult to guarantee survival rates. At the same time, the single-chamber design cannot achieve classified transport, and there is a lack of water quality monitoring and emergency response methods during transport, as well as insufficient ease of operation. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a fish fry transportation device for fish farming.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a fish fry transport device for fish farming, comprising a main body, which includes a box and a push handle. The push handle is installed on one side of the box, and the bottom of the box is equipped with casters. The device is characterized in that the box has an internal transport trough, which is divided into multiple independent compartments by a detachable partition. Each compartment has a dissolved oxygen detector and a connection hole installed on its inner wall. The detection end of the dissolved oxygen detector is immersed in the water in the compartment, and a display screen is installed on the top of the detector. The display screen is embedded in the outer surface of the box. An oxygen supply assembly is installed on the outer surface of the box, comprising a liquid oxygen storage tank fixedly installed at the bottom of the box, a vaporizer connected to the storage tank via a connecting pipe, a pressure reducing and regulating valve installed on the oxygen supply pipeline, and an oxygen supply pipeline. One end of the oxygen supply pipeline extends into the box and is equipped with multiple branch pipes.

[0007] As a preferred technical solution of this utility model, the connecting hole is a threaded interface opened on the side wall of the dividing tank, the dividing pipe is installed in the connecting hole by a threaded connection, the end of the dividing pipe is equipped with a nano aeration disc, the nano aeration disc is submerged in the water at the bottom of the dividing tank, one end of the oxygen supply pipe is sealed to the air outlet of the gasifier, and a pressure reducing valve and a one-way check valve are installed sequentially on the oxygen supply pipe along the gas flow direction.

[0008] As a preferred embodiment of this utility model, the bottom end of the vaporizer is equipped with a vertically arranged connecting pipe, which is connected to the top of the storage tank through a shut-off valve. The storage tank has a double-layer vacuum insulation structure, and the outer wall of the storage tank is equipped with a liquid level observation window and a shockproof support.

[0009] As a preferred embodiment of this utility model, the movable wheels are four universal wheels with locking function, symmetrically installed at the four corners of the bottom of the box.

[0010] As a preferred technical solution of this utility model, the dissolved oxygen detector has a built-in low oxygen alarm module. When the dissolved oxygen level in the water is detected to be lower than a preset threshold, the display screen shows an alarm signal and triggers a buzzer.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model relates to a fish fry transportation device for fish farming. By integrating a liquid oxygen supply system, an intelligent monitoring module, and a layered transportation structure, it achieves both safety and efficiency in fish fry transportation: a liquid oxygen storage tank, along with a vaporizer and pressure reducing device, is used to generate microbubbles through a nano-aeration disc to increase oxygen levels and ensure stable dissolved oxygen levels in the water; a dissolved oxygen detector monitors water quality in real time and triggers a low-oxygen alarm for rapid response; an independent compartment design prevents fish fry from being crushed, improving the survival rate during transportation; a combination of casters and a folding handle facilitates movement and operation; multiple safety components ensure the reliability of long-distance transportation, comprehensively optimizing the fish fry transportation process. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the box structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the oxygen supply pipeline structure of this utility model;

[0017] In the diagram: 1. Main body of the device; 2. Push handle; 3. Box; 301. Moving wheel; 302. Storage tank; 4. Transport trough; 401. Sub-trough; 402. Dissolved oxygen detector; 5. Vaporizer; 501. Pressure reducing valve; 502. Oxygen supply pipeline; 503. Branch pipe; 504. Nano aeration disc. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] In the attached diagram, all identical reference numerals refer to the same components.

[0020] like Figure 1-3 As shown, this utility model provides a fish fry transport device for fish farming, including a main body 1, which consists of a box 3 and a push handle 2. The push handle 2 is fixedly installed on the upper part of the right outer wall of the box 3 by bolts, and its grip part is covered with a non-slip rubber sleeve; four universal wheels with locking function are symmetrically installed at the four corners of the bottom of the box 3 by screws, and each universal wheel is equipped with an independent brake pedal to facilitate stable parking during transportation.

[0021] The container 3 has a transport trough 4 inside, which is divided into three independent compartments 401 by partitions. The partitions are made of food-grade PP material, and silicone sealing strips are embedded on both sides of the partitions to form a waterproof seal with the inner wall of the transport trough 4. A dissolved oxygen detector 402 is fixedly installed on the inner wall of each compartment 401 by clips. The detection end of the dissolved oxygen detector 402 is immersed in the water in the compartment 401, and a display screen is connected to its top. The display screen is embedded in the top surface of the dissolved oxygen detector 402, and the surface is covered with a tempered glass protective sheet.

[0022] An oxygen supply assembly is installed on the outer surface of the housing 3. This assembly includes a storage tank 302 at one end of the housing 3, a vaporizer 5 connected to the storage tank 302 via a connecting pipe, a pressure reducing valve 501, and a one-way check valve installed on the oxygen supply pipeline 502. The storage tank 302 has a double-layer vacuum insulation structure; its inner liner is made of 304 stainless steel, and its outer shell is made of engineering plastic. The interlayer is filled with fiberglass insulation material, and the outer wall is equipped with a liquid level observation window and a shock-absorbing rubber sleeve. The connecting pipe is a corrugated metal flexible hose, and its end is threadedly connected to the top interface of the storage tank 302 via a shut-off valve.

[0023] One end of the oxygen supply pipe 502 is sealed to the air outlet of the gasifier 5 via a flange, and the other end extends into the housing 3 and branches into three branch pipes 503. Each branch pipe 503 is sealed to the connection hole on the side wall of the trough 401 via a threaded interface. A nano-aeration disc 504 is installed at the end of each branch pipe 503. The nano-aeration disc 504 is submerged in the water at the bottom of the trough 401, and its surface is uniformly distributed with micropores with a diameter of 50μm. A pressure reducing and regulating valve 501 is installed sequentially along the gas flow direction on the oxygen supply pipe 502 to set the output pressure to 0.08MPa, and a one-way check valve is installed to prevent water backflow.

[0024] The dissolved oxygen detector 402 has a built-in low oxygen alarm module. When the dissolved oxygen level in the water is detected to be below 5 mg / L, the display screen will show a red alarm signal and trigger a buzzer with a decibel value of ≤85 dB. The buzzer is installed below the display screen by screws.

[0025] The workflow of this utility model is as follows: Before transportation, liquid oxygen is injected through the filling port of the liquid oxygen storage tank 302, and the shut-off valve is closed; the fish fry are divided into each sub-tank 401, and an appropriate amount of water is injected; the oxygen supply system is turned on, and the liquid oxygen enters the vaporizer 5 through the connecting pipe and is converted into gaseous oxygen. After being stabilized by the pressure reducing valve 501, it is delivered to each sub-pipe 503 through the oxygen supply pipeline 502; the oxygen dissolves into the water in the form of microbubbles through the nano aeration disc 504, and the dissolved oxygen detector 402 monitors the dissolved oxygen level in real time and displays the value on the display screen; when the dissolved oxygen level is lower than the threshold, an audible and visual alarm is triggered, and the operator can intervene by adjusting the pressure reducing valve 501 or supplementing liquid oxygen.

[0026] This utility model is a fish fry transportation device for fish farming. By integrating a liquid oxygen supply system, an intelligent monitoring module, and a layered transportation structure, it achieves both safety and efficiency in fish fry transportation: a liquid oxygen storage tank 302 is used in conjunction with a vaporizer 5 and a pressure reducing device, and microbubbles are formed through a nano-aeration disc 504 to increase oxygenation and ensure stable dissolved oxygen levels in the water; a dissolved oxygen detector 402 monitors water quality in real time and triggers a low oxygen alarm for rapid response; the independent compartment design 401 avoids squeezing of fish fry and improves the survival rate during transportation; the combination of casters and folding handles facilitates movement and operation; multiple safety components ensure the reliability of long-distance transportation, and the fish fry transportation process is comprehensively optimized.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fish fry transport device for fish farming, comprising a main body (1), the main body (1) comprising a box (3) and a push handle (2), the push handle (2) being mounted on one side of the box (3), and a caster wheel (301) being mounted on the bottom end of the box (3), characterized in that, The interior of the box (3) is provided with a transport trough (4), which is divided into multiple independent sub-slots (401) by a detachable partition. Each sub-slot (401) has a dissolved oxygen detector (402) and a connection hole installed on its inner side wall. The detection end of the dissolved oxygen detector (402) is immersed in the water in the sub-slot (401). The top of the dissolved oxygen detector (402) is equipped with a display screen, which is embedded in the outer surface of the box (3). An oxygen supply assembly is installed on the outer surface of the box (3). The oxygen supply assembly includes a liquid oxygen storage tank (302) fixedly installed at the bottom of the box (3), a vaporizer (5) connected to the storage tank (302) through a connecting pipe, a pressure reducing valve (501) installed on the oxygen supply pipeline (502), and an oxygen supply pipeline (502). One end of the oxygen supply pipeline (502) extends into the interior of the box (3) and is equipped with multiple branch pipes (503).

2. The fish fry transport device for fish farming according to claim 1, characterized in that, The connection hole is a threaded interface opened on the side wall of the sub-slot (401). The sub-pipe (503) is installed in the connection hole by threaded connection. A nano aeration disc (504) is installed at the end of the sub-pipe (503). The nano aeration disc (504) is submerged in the water at the bottom of the sub-slot (401). One end of the oxygen supply pipe (502) is sealed to the air outlet of the gasifier (5). A pressure reducing valve (501) and a one-way check valve are installed on the oxygen supply pipe (502) in sequence along the gas flow direction.

3. A fish fry transport device for fish farming according to claim 2, characterized in that, The bottom end of the vaporizer (5) is equipped with a vertically arranged connecting pipe, which is connected to the top of the storage tank (302) through a shut-off valve. The storage tank (302) has a double-layer vacuum insulation structure, and the outer wall of the storage tank (302) is equipped with a liquid level observation window and a shockproof bracket.

4. The fish fry transport device for fish farming according to claim 1, characterized in that, The movable wheels (301) are four universal wheels with locking function, which are symmetrically installed at the four corners of the bottom of the box (3).

5. A fish fry transport device for fish farming according to claim 1, characterized in that, The dissolved oxygen detector (402) has a built-in low oxygen alarm module. When the dissolved oxygen level in the water is detected to be lower than a preset threshold, the display screen shows an alarm signal and triggers a buzzer.