Asynchronous self-sinking fishnet

By using an asynchronous self-sinking feeder design and connecting the lifting rope with a counterweight, the problem of equipment misjudgment caused by mesh blockage during the feeder's descent is solved, thus achieving stability and accuracy in equipment operation.

CN223929234UActive Publication Date: 2026-02-24FOSHAN GAOMING YIHAI AGRI TECH SERVICE CO LTD
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Patent Information

Application Number
CN202520202215.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-02-24
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

In existing shrimp pond equipment, the lifting rope becomes loose due to clogged mesh during the descent of the feed net, leading to equipment misjudgment and affecting feeding and sampling results.

Method used

An asynchronous self-sinking material trap design is adopted, and a lifting rope is connected through a counterweight block to ensure that the lifting rope remains taut during the descent of the material trap assembly, thus avoiding equipment misjudgment.

Benefits of technology

This ensures the stability of the equipment's operation, prevents the lifting rope from slackening due to mesh blockage, and improves the accuracy of feeding and sampling equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an asynchronous self-sinking fishnet, which relates to the technical field of feeding equipment and comprises a fishnet assembly, and the fishnet assembly surrounds to form an accommodating space with an upward opening; a middle hole is formed in the material fishnet assembly, a lifting rope movably penetrates through the middle hole, and the lower end of the lifting rope is connected with a balancing weight; the material fishnet assembly comprises a material fishnet body, the middle hole is formed in the center of the material fishnet body, and meshes are further formed in the bottom face of the material fishnet body. The lifting device has the advantages that the lifting device comprises the material fishnet assembly, the lifting rope and the balancing weight, the lifting rope is connected with the balancing weight, the material fishnet assembly is movably connected with the lifting rope, when the material fishnet assembly is thrown, the balancing weight sinks and straightens the lifting rope, the material fishnet assembly descends along the lifting rope till the connecting piece is connected with the limiting column, and then the material fishnet assembly stops moving. The counterweight block does not descend slowly like the fishnet assembly due to the fact that meshes are blocked, so that in the descending process of the counterweight block, misjudgment of feeding equipment or sampling equipment caused by looseness of the lifting rope is avoided, and the working stability can be guaranteed.
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Description

Technical Field

[0001] The utility model relates to the field of feeding equipment technology, and in particular to an asynchronous self-sinking feeder. Background Technology

[0002] A feed net is a mesh device placed at the bottom of a shrimp pond to hold feed, allowing farmers to observe the shrimp's feeding behavior. Through the feed net, farmers can determine the shrimp's appetite, health status, and whether the feeding amount is appropriate. Due to technological advancements, many shrimp feeding systems now include mechanisms that automatically sink and retrieve the feed net periodically. Cameras then capture images of the feed in the net and the size of the shrimp to assess their growth. Because the sinking and retraction of the feed net are automatically controlled by the equipment, accurately determining when the net has sunk and been retrieved is crucial. Feeding systems typically use a lifting rope to lower the feed net to the bottom and pull it out of the water. The standard used in the equipment's program to determine whether the fishing net has reached the bottom is usually determined by the lifting rope. During the descent of the fishing net, the lifting rope is taut. After the fishing net reaches the bottom, the lifting rope becomes slack because the bottom of the fishing net is supported by the pond bottom. However, after prolonged use, moss or mud will accumulate on the mesh of the fishing net's bottom, which will cause greater resistance when the fishing net descends, resulting in a slower descent speed. Consequently, the lifting rope may become slack during the descent, leading to false judgments from the equipment's sensors.

[0003] The technical content disclosed in the Chinese patent document (publication number: CN202773753U, patent name: a trap suitable for fish and shrimp polyculture) is as follows: it includes a trap frame and a trap net sleeve wrapped around the trap frame. The trap net sleeve is made by sewing together a feed net sleeve for holding feed for polycultured shrimp and an isolation net sleeve for preventing polycultured fish from entering the trap. The mesh size of the isolation net sleeve should be selected according to the size of the polycultured fish. It is larger than the body size of the polycultured shrimp but smaller than the body size of the polycultured fish. In this way, the polycultured shrimp can enter the trap to eat, while the polycultured fish cannot enter. In order to allow the shrimp to enter and exit freely to the maximum extent, the mesh size of the isolation net sleeve should be as large as possible.

[0004] As can be seen from the above implementation plan and the corresponding drawings, the fish and shrimp polyculture traps are not equipped with corresponding components to prevent the equipment from misjudging the situation due to the slow sinking speed. This can easily lead to misjudgment during use and affect the breeding effect. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides an asynchronous self-sinking feeder, including a feeder assembly, a lifting rope and a counterweight. Since the counterweight does not descend slowly due to the mesh being blocked, the lifting rope will not slacken during the descent of the counterweight, thus preventing misjudgment by the feeding or sampling equipment and ensuring the stability of the operation.

[0006] To solve the above-mentioned technical problems, the utility model is implemented through the following technical solution:

[0007] An asynchronous self-sinking feeder includes a feeder assembly, which surrounds an upward-facing receiving space; the feeder assembly has a central hole through which a lifting rope is movably inserted, and the lower end of the lifting rope is connected to a counterweight.

[0008] Furthermore, the feeder assembly includes a feeder body, with a central hole located at the center of the feeder body, and a mesh is also provided on the bottom surface of the feeder body.

[0009] Furthermore, the periphery of the feeder body is connected to the connecting plate via a connecting rope; the connecting plate is slidably sleeved on the lifting rope.

[0010] Furthermore, the lifting rope is connected to a limiting post that restricts the connecting piece, and the limiting post is located below the connecting piece.

[0011] Furthermore, the outer diameter of the counterweight is larger than the inner diameter of the central hole.

[0012] Furthermore, the sidewall of the feeder body is inclined relative to the bottom surface, and the bottom inner diameter of the feeder body is smaller than the opening inner diameter of the feeder body.

[0013] Furthermore, there are three or more connecting ropes, which are equidistantly connected to the main body of the fishing net.

[0014] Furthermore, the material net body is also equipped with an internal support frame.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] This utility model provides an asynchronous self-sinking feeder, including a feeder assembly, a lifting rope, and a counterweight. The lifting rope is connected to the counterweight, and the feeder assembly is movably connected to the lifting rope. When the feeder assembly is deployed, the counterweight sinks and straightens the lifting rope. The feeder assembly descends along the lifting rope until the connecting piece contacts the limiting post and stops. Since the counterweight does not descend slowly due to the mesh being blocked, the lifting rope will not slacken during the descent of the counterweight, thus preventing misjudgment by the feeding or sampling equipment and ensuring operational stability. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the utility model and, together with the embodiments of the utility model, are used to explain the utility model. They do not constitute a limitation on the utility model. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall material net according to an embodiment of the present utility model;

[0019] Figure 2 This is a first schematic diagram of the asynchronous descent of the feeder assembly and the counterweight block according to an embodiment of the present invention;

[0020] Figure 3 This is a second schematic diagram of the asynchronous descent of the feeder assembly and the counterweight block according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the connection structure of the connecting piece, the limiting post, and the lifting rope in an embodiment of this utility model.

[0022] In the diagram: 1. Feeder assembly; 101. Feeder body; 1011. Center hole; 102. Connecting piece; 103. Limiting post; 104. Connecting rope; 105. Inner support frame; 2. Counterweight; 3. Lifting rope. Detailed Implementation

[0023] The preferred embodiments of the utility model are 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 utility model.

[0024] like Figures 1 to 4 As shown, an asynchronous self-sinking feeder includes a feeder assembly 1, which surrounds an upward-facing accommodating space. Feed can be placed into this accommodating space. When the feeder assembly 1 is lifted, some fish and shrimp will also be in this accommodating space. At this time, the feeding progress and growth of the fish and shrimp can be observed by taking pictures or manually. The feeder assembly 1 is provided with a central hole 1011, through which a lifting rope 3 is movably inserted. The lower end of the lifting rope 3 is connected to a counterweight block 2. The feeder assembly 1 includes a feeder body 101, with the central hole 1011 located at the center of the feeder body 101. The bottom surface of the feeder body 101 is also provided with mesh holes.

[0025] The periphery of the feeder body 101 is connected to the connecting piece 102 via a connecting rope 104. The connecting piece 102 slides through a circular hole in the center and is fitted onto the lifting rope 3. A limiting post 103 is connected to the lifting rope 3 to restrict the connecting piece 102. Specifically, the diameter of the limiting post 103 is larger than the diameter of the circular hole in the center of the connecting piece 102. The limiting post 103 is located below the connecting piece 102. That is, in application, when the feeder body 101 sinks, the connecting piece 102 slides down the lifting rope 3 and stops when it reaches the position of the limiting post 103. When the lifting rope 3 is pulled up, the limiting post 103 will push against the connecting piece 102 and pull it up, thereby pulling the feeder body 101 up.

[0026] When the net body 101 is pulled out of the water, water flows down through the mesh of the net body 101, so that the inside of the net body 101 is not filled with water, which makes it easy for the camera to take pictures and observe, and also easy for the human eye to see.

[0027] When the main body of the fishing net 101 is deployed, the counterweight 2 sinks and straightens the lifting rope 3. The main body of the fishing net 101 descends along the lifting rope 3 until the connecting piece 102 stops against the limiting post 103. The counterweight 2 sinks to the bottom of the water first. Since the counterweight 2 does not descend slowly due to the mesh being blocked like the main body of the fishing net 101, the lifting rope 3 will not slacken during the descent of the counterweight 2, thus preventing equipment misjudgment and ensuring the stability of the control mechanism. When the main body of the fishing net 101 descends along the lifting rope 3, the lifting rope 3 also guides the main body of the fishing net 101, making the descent of the main body of the fishing net 101 more stable.

[0028] The outer diameter of the counterweight 2 is larger than the inner diameter of the central hole 1011, so it will not be pulled up and enter the feeder body 101.

[0029] The side wall of the material trap body 101 is inclined relative to the bottom surface. The bottom inner diameter of the material trap body 101 is smaller than the opening inner diameter of the material trap body 101. This makes the containing space an upward-opening container, which makes it easy for equipment or personnel to put materials into the containing space, and also ensures that the camera will not be obstructed when taking pictures of the inside of the containing space.

[0030] Three or more connecting ropes 104 are connected at equal intervals to the main body of the net 101, so that there are traction points on all four sides of the main body of the net 101, thus ensuring that the main body of the net 101 remains stable whether it is rising or falling.

[0031] The material net body 101 is also equipped with an internal support frame, which strengthens the internal structure of the material net body 101, making the material net body 101 more stable and less prone to deformation even if it is impacted during operation.

[0032] This asynchronous self-sinking feed net is part of the feeding or sampling equipment. The slackness of the lifting rope 3 determines whether the feed net body 101 has reached the bottom of the pond, thus providing feedback to the feeding or sampling equipment to stop the feeding. If the lifting rope 3 is directly connected to the feed net body 101, blockage of the net's mesh and slow descent could cause the lifting rope 3 to slack, leading to misjudgment by the feeding or sampling equipment. Therefore, in this application, the lifting rope 3 is connected to the counterweight 2. During descent, the counterweight 2 straightens the lifting rope 3 until it reaches the bottom before slackening, preventing the slow sinking phenomenon seen with the feed net body 101. This helps ensure the stability of the feeding or sampling equipment.

[0033] Finally, it should be noted that the above are merely preferred embodiments of the utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the 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. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the protection scope of the utility model.

Claims

1. An asynchronous self-sinking material trap, characterized in that, It includes a feeder assembly (1), which surrounds and forms an opening-facing accommodating space; the feeder assembly (1) is provided with a central hole (1011), through which a lifting rope (3) is movably inserted, and the lower end of the lifting rope (3) is connected to a counterweight (2).

2. The asynchronous self-sinking feeder according to claim 1, characterized in that, The feeder assembly (1) includes a feeder body (101), a central hole (1011) is located at the center of the feeder body (101), and a mesh is also provided on the bottom surface of the feeder body (101).

3. The asynchronous self-sinking feeder according to claim 2, characterized in that, The periphery of the feeder body (101) is connected to the connecting piece (102) by the connecting rope (104); the connecting piece (102) slides on the lifting rope (3).

4. The asynchronous self-sinking feeder according to claim 3, characterized in that, The lifting rope (3) is connected to a limiting post (103) that restricts the connecting piece (102), and the limiting post (103) is located below the connecting piece (102).

5. The asynchronous self-sinking feeder according to any one of claims 1 to 4, characterized in that, The outer diameter of the counterweight (2) is larger than the inner diameter of the central hole (1011).

6. The asynchronous self-sinking feeder according to claim 2, characterized in that, The side wall of the feeder body (101) is inclined relative to the bottom surface, and the bottom inner diameter of the feeder body (101) is smaller than the opening inner diameter of the feeder body (101).

7. The asynchronous self-sinking feeder according to claim 3, characterized in that, The connecting ropes (104) are three or more and are connected at equal intervals to the main body of the feeder (101).

8. The asynchronous self-sinking feeder according to claim 6, characterized in that, The feeder body (101) is also provided with an internal support frame.

Citation Information

Patent Citations

  • Fishnet cage suitable for polyculture of fish and shrimp

    CN202773753U