A fish farming escape prevention device

The design of the fishing net tube, driven by airbags and wind, solves the problems of fish escaping when the water level rises and the slow water flow. It achieves automatic adjustment and stirring, provides an excellent growth environment for fish, and reduces the intensity of manual operation.

CN224267853UActive Publication Date: 2026-05-26PANJIN ZHENGZE AGRI DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PANJIN ZHENGZE AGRI DEV CO LTD
Filing Date
2025-07-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing fish farming escape prevention devices cannot adjust their height in time when the water level rises, causing fish to escape, and the slow internal water flow affects growth.

Method used

The system uses airbags to adjust the height of the fishing net cylinder according to water level changes, combined with external wind power to drive the stirring blades and cleaning plates, to achieve automatic adjustment and water flow mixing, reducing the intensity of manual operation and improving water flow and dissolved oxygen content.

Benefits of technology

It achieves automatic height adjustment of the escape prevention device, preventing fish from escaping, improving water flow and dissolved oxygen content, providing a good growth environment, reducing the risk of blockage, and improving the convenience of feed addition.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of fish farming escape prevention technology, specifically to a fish farming escape prevention device, including a base, a fishing net tube fixedly installed on the top of the base, a barrier tube slidably connected inside the fishing net tube, a sealing plate installed on the top of the barrier tube by screws, and an airbag fixedly connected to the outside of the sealing plate. The airbag changes with the water level. The fishing net tube is equipped with stirring blades to agitate the water flow. The use of the airbag allows the height of the escape prevention device to change with the water level, eliminating the need for manual adjustment and preventing fish from easily flying out or swimming out of the top of the escape prevention device, thus ensuring the effectiveness of the escape prevention device. Furthermore, the external wind force drives the blades to rotate, which agitates the water flow inside the fishing net tube, allowing dissolved oxygen and nutrients in the water to be evenly distributed, avoiding local hypoxia or nutrient overload, and providing a good growth environment for the fish.
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Description

Technical Field

[0001] This utility model relates to the field of fish farming escape prevention technology, and in particular to a fish farming escape prevention device. Background Technology

[0002] Fish inhabit almost all aquatic environments on Earth, from freshwater lakes and rivers to saltwater seas and oceans. Fish meat is rich in animal protein and phosphorus, making it highly nutritious, delicious, and easily digestible. It plays a significant role in the development of human physical and intellectual abilities. The current market demand for fish meat is too high, leading many people to modify ponds for fish breeding. They often build individual grids in the ponds for fish farming and breeding. However, during the breeding process, heavy rains can cause the pond water level to rise, causing fish inside the grids to escape into the pond, affecting other fish in the pond. Therefore, escape-proof devices are needed to prevent fish from escaping from inside the grids.

[0003] In the application document for an escape prevention device for fish farming with application number 202421518689.2, the cylinder in the middle of the top of the base is activated to drive the push rod inside the lifting rod at one end to move downward, thereby driving the interception net plate installed at the top to move downward. The connecting rod on the bottom side connects with the connecting groove opened on the top side of the barrier plate, so that the interception net plate is attached to the barrier plate, preventing the interception net plate from being blown off course in the wind, thereby sealing the fishing net plate and preventing the fish inside from jumping out and causing incalculable losses.

[0004] However, the electric drive adjustment means that the height of the escape prevention device cannot be adjusted immediately when the water level rises. This means that no one needs to open the cylinder according to the water level, which causes fish to swim out and fly out of the escape prevention device when the water level rises. In addition, since the fish are kept inside the escape prevention device, the water flow inside the device is slow, which affects the growth of the fish. Utility Model Content

[0005] The purpose of this utility model is to provide a fish farming escape prevention device, which solves the problem that the height of the escape prevention device cannot be adjusted in time when the water level rises due to electric drive adjustment, and the lack of personnel to open the cylinder according to the water level, which causes fish to swim out and fly out of the escape prevention device when the water level rises. In addition, since the fish are raised inside the escape prevention device, the natural water flow speed inside the escape prevention device is slow, which affects the growth of the fish.

[0006] To achieve the above objectives, this utility model provides a fish farming escape prevention device, including a base, a fishing net tube fixedly installed on the top of the base, a barrier tube slidably connected inside the fishing net tube, a sealing plate installed on the top of the barrier tube by screws, an airbag fixedly connected to the outside of the sealing plate, the airbag changing with the water level, a stirring blade for stirring the water flow inside the fishing net tube, and a cleaning plate for cleaning the fishing net tube on the outside of the fishing net tube, both the cleaning plate and the stirring blade are driven by a drive blade, which is driven by external wind power, so that the escape prevention device automatically adjusts with the water level, without the need for manual operation, reducing the labor intensity of personnel, and the external wind power achieves water flow stirring inside the escape prevention device and cleaning of the outside of the escape prevention device, accelerating water flow and facilitating fish growth.

[0007] Preferably, a mounting bearing is fixedly installed inside the base, a rotating shaft is fixedly installed inside the mounting bearing, and stirring blades are uniformly fixedly sleeved on the outside of the rotating shaft.

[0008] Preferably, a one-way bearing is fixedly sleeved on the outer side of the top of the rotating shaft, and a drive blade is fixedly sleeved on the outer side of the one-way bearing, so that the rotating shaft rotates in one direction and avoids the problem that the drive blade is subjected to wind force at both ends due to the different directions of the wind force on the outside, thus causing the drive blade to remain stationary.

[0009] Preferably, a connecting rod is installed at one end of the drive blade by screws, and a cleaning plate is installed at the bottom of the connecting rod by screws. The screws facilitate the installation and removal of the cleaning plate, making it easy for personnel to replace the cleaning plate with a new one.

[0010] Preferably, the rotating shaft passes through the enclosed plate, and the driving blade is located at the top of the enclosed plate.

[0011] Preferably, the end of the cleaning plate is in contact with the outside of the fishing net cylinder.

[0012] Preferably, both ends of the bottom of the sealing plate are slidably connected to a barrier plate, and the top ends of the two barrier plates are connected to each other through a drive frame. Both ends of the drive frame are internally connected to a fixing screw through a thread.

[0013] Preferably, the top surface of the sealing plate has feeding holes at both ends corresponding to the positions of the barrier plate, and the end face of the fixing screw is in contact with the top surface of the sealing plate.

[0014] This utility model discloses a fish farming escape-prevention device. The use of an air bladder allows the device's height to change with the water level, eliminating the need for manual adjustment and reducing labor intensity. This prevents fish from easily flying out of the top of the device, ensuring its effectiveness. Driven by external wind, the blades rotate, agitating the water inside the net tube. This ensures even distribution of dissolved oxygen and nutrients, preventing localized oxygen deficiency or nutrient overload and providing a favorable growth environment for the fish. It also introduces oxygen from the air into the water, increasing dissolved oxygen levels and improving the fish's growth. Simultaneously, the agitation rotates a cleaning plate to clean the outside of the net tube, preventing large debris from adhering to the end and causing blockages that could impede water flow. This also ensures a safe growing environment for the fish. Furthermore, multiple feeding holes can be opened simultaneously, facilitating the addition of feed and improving the convenience of feeding. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the drive blade installation structure according to an embodiment of the present invention.

[0018] Figure 3 This is an embodiment of the present utility model. Figure 2 A magnified structural diagram of region A in the middle.

[0019] Figure 4 This is a schematic diagram of the fixing screw installation structure according to an embodiment of the present utility model.

[0020] 1. Base; 2. Fishing net tube; 3. Enclosed plate; 4. Airbag; 5. Barrier cylinder; 6. Reinforced cleaning assembly; 601. Mounting bearing; 602. Rotating shaft; 603. Agitator blade; 604. One-way bearing; 605. Drive blade; 606. Connecting rod; 607. Cleaning plate; 7. Feeding barrier assembly; 701. Barrier plate; 702. Drive frame; 703. Fixing screw. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Please see Figures 1-4 As shown, a fish farming escape prevention device includes a base 1, a fishing net tube 2 fixedly installed on the top of the base 1, a barrier tube 5 slidably connected inside the fishing net tube 2, a sealing plate 3 installed on the top of the barrier tube 5 by screws, and an airbag 4 fixedly connected to the outside of the sealing plate 3.

[0023] The airbag 4 floats on the water surface and can move with the water level. The movement of the airbag 4 drives the closing plate 3 to move, so that the barrier cylinder 5 can move inside the fishing net cylinder 2. This allows the fishing net cylinder 2 to be adjusted according to the water level, preventing fish from flying out or swimming out of the top of the fishing net cylinder 2 because the water level is higher than the height of the fishing net cylinder 2, thus ensuring the effectiveness of the escape prevention device.

[0024] The fishing net cylinder 2 is equipped with an enhanced cleaning component 6, which includes a mounting bearing 601, a rotating shaft 602, an agitator blade 603, a one-way bearing 604, a drive blade 605, a connecting rod 606, and a cleaning plate 607.

[0025] The base 1 has a mounting bearing 601 fixedly installed inside, and a rotating shaft 602 fixedly installed inside the mounting bearing 601. Stirring blades 603 are uniformly fixedly sleeved on the outside of the rotating shaft 602. A one-way bearing 604 is fixedly sleeved on the top outside of the rotating shaft 602. A driving blade 605 is fixedly sleeved on the outside of the one-way bearing 604. A connecting rod 606 is installed at one end of the driving blade 605 by screws. A cleaning plate 607 is installed at the bottom of the connecting rod 606 by screws.

[0026] The end of the cleaning plate 607 is in contact with the outside of the fishing net cylinder 2. The rotating shaft 602 passes through the closed plate 3, driving the blade 605 to be at the top of the closed plate 3, which facilitates cleaning the outside of the fishing net cylinder 2. The blade 605 can be driven to rotate by external wind power, thereby rotating the stirring blade 603.

[0027] Driven by external wind, blade 605 rotates. The use of a one-way bearing 604 ensures that blade 605 can only rotate in one direction. As blade 605 rotates, it drives the rotating shaft 602, which in turn drives the stirring blade 603. This agitates the water inside the fishing net cylinder 2, ensuring a more even distribution of dissolved oxygen and nutrients, preventing localized oxygen deficiency or nutrient overload, and providing a favorable growth environment for fish. It also introduces oxygen from the air into the water, increasing dissolved oxygen levels and improving the fish's growth. Simultaneously, the connecting rod 606 drives the cleaning plate 607 to rotate, cleaning the outside of the fishing net cylinder 2. This prevents large debris from adhering to the end of the net cylinder 2, causing blockages and hindering water flow. When there is a large amount of debris on the outside of the fishing net cylinder 2, it can be manually removed.

[0028] A feeding barrier assembly 7 is installed on the top of the closed plate 3. The feeding barrier assembly 7 includes a barrier plate 701, a drive frame 702 and a fixing screw 703.

[0029] Both ends of the bottom of the closed plate 3 are slidably connected to the baffle plate 701. The top ends of the two baffle plates 701 are connected by the drive frame 702. Both ends of the drive frame 702 are connected by the fixing screw 703 through the thread.

[0030] Feeding holes are provided at both ends of the top surface of the sealing plate 3, corresponding to the positions of the barrier plate 701. The end face of the fixing screw 703 is in contact with the top surface of the sealing plate 3, which facilitates the feeding of the feed into the fishing net cylinder 2 and the fixing of the barrier plate 701.

[0031] Personnel can loosen the fixing screw 703 and rotate the drive frame 702 to move the baffle plate 701, opening the feeding hole. After adding feed into the fishing net cylinder 2, the baffle plate 701 closes the feeding hole. Then, by rotating the fixing screw 703, the end face of the fixing screw 703 contacts the top surface of the sealing plate 3, thus fixing the baffle plate 701 and closing the feeding hole. This facilitates the opening and closing of the feeding hole and the fixation of the baffle plate 701, preventing fish from flying out of the feeding hole and making it easier for personnel to add feed, thus improving the convenience of feeding.

[0032] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A fish farming escape prevention device, comprising a base, wherein a fishing net tube is fixedly installed on the top of the base, characterized in that, The fishing net tube has a slidably connected baffle tube inside. A sealing plate is installed on the top of the baffle tube by screws. An airbag is fixedly connected to the outside of the sealing plate. The airbag changes with the water level. The fishing net tube is equipped with stirring blades to agitate the water flow inside. A cleaning plate is equipped on the outside of the fishing net tube to clean it. Both the cleaning plate and the stirring blades are driven by a drive blade, which is driven by external wind power.

2. The fish farming escape prevention device as described in claim 1, characterized in that, A mounting bearing is fixedly installed inside the base, and a rotating shaft is fixedly installed inside the mounting bearing. Stirring blades are uniformly fixedly sleeved on the outside of the rotating shaft.

3. The fish farming escape prevention device as described in claim 2, characterized in that, A one-way bearing is fixedly sleeved on the outer side of the top of the rotating shaft, and a drive blade is fixedly sleeved on the outer side of the one-way bearing.

4. The fish farming escape prevention device as described in claim 3, characterized in that, One end of the drive blade is fitted with a connecting rod by screws, and a cleaning plate is fitted with a cleaning plate by screws at the bottom of the connecting rod.

5. The fish farming escape prevention device as described in claim 2, characterized in that, The rotating shaft passes through the closed plate, and the driving blade is located at the top of the closed plate.

6. The fish farming escape prevention device as described in claim 4, characterized in that, The end of the cleaning plate is in contact with the outside of the fishing net cylinder.

7. The fish farming escape prevention device as described in claim 1, characterized in that, Both ends of the bottom of the closed plate are slidably connected to the barrier plates, and the top ends of the two barrier plates are connected to each other through a drive frame. Both ends of the drive frame are internally connected to the fixing screws through threads.

8. The fish farming escape prevention device as described in claim 7, characterized in that, The top surface of the sealing plate has feeding holes at both ends corresponding to the positions of the barrier plate, and the end face of the fixing screw is in contact with the top surface of the sealing plate.

Citation Information

Patent Citations

  • Escape prevention device for fish culture

    CN222898021U