An oxygen method fish gathering device

The oxygen-based fish collecting device uses solid calcium dioxide to react with water to generate oxygen. Combined with the oxygen-seeking nature of freshwater fish and the elastic fish inlet structure, it solves the problems of single function and high cost of fish collecting boxes, and achieves efficient and environmentally friendly fish collection.

CN116180659BActive Publication Date: 2025-10-24HOHAI UNIV
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Patent Information

Application Number
CN202310026702.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-01-09
Publication Date
2025-10-24
Estimated Expiration
2043-01-09

AI Technical Summary

Technical Problem

Existing fish collecting boxes have a single function, insufficient means of attracting fish, require the use of other auxiliary equipment, have high overall costs, and may pollute the environment.

Method used

An oxygen-based fish-aggregating device is designed, which utilizes solid calcium dioxide to react with water to generate oxygen. An oxygen curtain is formed through an oxygen hose to attract fish. An elastic fish inlet structure and a permeable net are installed in the fish-aggregating box. Combined with the oxygen-attracting nature of freshwater fish, efficient fish aggregation is achieved, and the fish-aggregating depth is controlled by a lifting device.

Benefits of technology

It achieves efficient and low-cost fish gathering, avoids environmental pollution, has a simple structure, is easy to operate, and is suitable for collecting fish in various water depths.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116180659B_ABST
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Abstract

The present application provides a kind of oxygen method fish collecting device, comprising: fish collecting box body;The fish collecting box body is connected with lifting device;The fish collecting box body is equipped with several fish inlet and fish outlet, the first water-permeable net is equipped on the fish inlet, the fish inlet hole is equipped on the first water-permeable net, the four corners of the fish inlet are connected with the four corners of the fish inlet hole respectively through elastic element, the first open-close door is equipped on the fish outlet;Oxygen generating device;The oxygen generating device includes shell, the top of the shell is connected with the bottom of the fish collecting box body;The shell is equipped with opening, the second open-close door is equipped on the opening;The inside of the shell is equipped with solid calcium dioxide;The side wall of the shell is communicated with oxygen hose.The present application is easy to operate, and fish can be effectively collected by using oxygen, which is convenient for popularization and application.
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Description

Technical Field

[0001] The invention relates to the field of fish aggregating devices, in particular to an oxygen-based fish aggregating device. Background Art

[0002] While traditional water conservancy projects have brought enormous benefits to humanity, they also often block entire rivers. Fish often migrate due to physiological needs, genetics, and environmental factors. Dams block these migration pathways, resulting in the loss or alteration of fish habitats, leading to a decline in fish populations or even extinction. To accommodate the passage of fish across dams, fishways, fish locks, and fish collection and transport systems have been implemented.

[0003] The fish collection and transportation system refers to a manual, assisted system that uses methods such as luring, intercepting, gathering, lifting, and temporarily holding fish, before transporting them across the dam by car or fishing boat. Fish collection boxes are the core equipment in this system. However, currently, these boxes have limited functionality, insufficient fish-attracting capabilities, and require additional auxiliary equipment, making them complex and costly to build and operate. Summary of the Invention

[0004] In view of the above-mentioned prior art, the present invention proposes an oxygen-based fish aggregating device.

[0005] The present invention provides an oxygen-based fish gathering device, comprising:

[0006] A fish collecting box body; the fish collecting box body is connected to a lifting device; the fish collecting box body is provided with a plurality of fish inlets and fish outlets, the fish inlet is provided with a first permeable net, the first permeable net is provided with a fish inlet hole, the four corners of the fish inlet are respectively connected to the four corners of the fish inlet hole by elastic members, and the fish outlet is provided with a first opening and closing door;

[0007] An oxygen generator comprising a housing, the top of the housing being connected to the bottom of the fish collecting box, and the contact surfaces of the two being a mesh structure; the housing being provided with an opening, the opening being provided with a second opening and closing door; solid calcium dioxide being provided within the housing; a sidewall of the housing being in communication with an oxygen hose, the inner end of the oxygen hose being provided with a second water-permeable mesh, the outer end of the oxygen hose being a closed end, and the sidewall of the oxygen hose being provided with a plurality of oxygen outlet holes.

[0008] Preferably, the lifting device includes two rigid rods fixedly connected to the two side walls of the fish collecting box, the two rigid rods are connected to stainless steel chains, and the two stainless steel chains are connected to a generator, and the generator is used to control the lifting and lowering of the fish collecting box in the water.

[0009] Preferably, the fish inlet is arranged in six, evenly distributed on the two side walls of the fish collecting box.

[0010] Preferably, the elastic member is composed of a plurality of elastic units connected, a cylindrical joint is arranged between adjacent elastic units, the end of the elastic unit is rotatably connected with the top surface or the bottom surface of the cylindrical joint, and the elastic unit can rotate around the side wall of the cylindrical joint.

[0011] Preferably, one side of the first opening and closing door is hingedly connected with the fish collecting box, and the other side of the first opening and closing door is boltedly connected with the fish collecting box.

[0012] Preferably, a plurality of swing bodies are arranged on the shell, the swing bodies are hingedly connected with the shell, one end of the swing body is in contact with the solid calcium dioxide, and the other end of the swing body is in contact with the external water body of the shell.

[0013] Preferably, the shell is arranged in a spherical structure.

[0014] Preferably, the second opening and closing door is arranged in an arc structure, one side of the second opening and closing door is hingedly connected with the shell, the other side of the second opening and closing door is rotatably connected with a bolt, a tubular bolt opening is arranged on the shell, and the bolt is in socket connection with the tubular bolt opening.

[0015] Preferably, the oxygen outlet hole gradually increases from the inside to the outside of the oxygen hose.

[0016] Preferably, the elastic unit is made of a belt.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] 1. The CaO2 is arranged in the spherical shell, so that the fish cannot enter the CaO2 and eat it by mistake, and the chemical substance CaO2 does not pollute the environment.

[0019] 2. The water body energy is utilized to make the swing body swing and continuously contact the CaO2, so as to scrape off the Ca(OH)2 generated by the surface reaction, so that the CaO2 stably and durably reacts with water to provide oxygen.

[0020] 3. The fish collecting box can be lowered by several meters in the water, and the fish in the deep water can be collected.

[0021] 4. The oxygen hose is arranged on the oxygen gas release hole, the oxygen gas release hole is arranged on the oxygen hose, the size of the oxygen gas release hole is arranged from large to small from the oxygen center point, and the uniform release of the oxygen gas curtain can be realized.

[0022] 5. The fish inlet of the present invention adopts a special structure. The side wall elastic member is composed of several elastic units connected together. It is a multi-section structure, which is easy for fish to move inward when touched. At the same time, after the fish enters, the side wall elastic member of the device can effectively rebound. After reaching verticality, the adjacent elastic units will support each other and finally maintain the vertical state and no longer rotate outward. After the fish enters the box, it is difficult for the fish to get out of the box.

[0023] 6. The present invention is cleverly designed, has a simple overall structure, is easy to operate, and has a low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the structure of an embodiment of the present invention.

[0025] Figure 2 Schematic diagram of the structure of the fish inlet in an embodiment of the present invention.

[0026] Figure 3 Schematic diagram of the connection between the elastic unit and the cylindrical joint in an embodiment of the present invention.

[0027] Figure 4 Schematic diagram of the structure of the oxygen generating device in an embodiment of the present invention.

[0028] In the figure: 1. fish collecting box; 2. rigid rod; 3. fish inlet; 4. first permeable net; 5. fish inlet hole; 6. elastic unit; 7. cylindrical joint; 8. first opening and closing door; 9. spherical shell; 10. second opening and closing door; 11. latch; 12. tubular latch opening; 13. solid calcium dioxide; 14. swinging body; 15. oxygen hose; 16. second permeable net; 17. oxygen outlet hole. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations. Example

[0030] An oxygen method fish gathering device, such as Figures 1-4 As shown, it includes a fish collecting box 1 and an oxygen generating device.

[0031] Among them, the fish collecting box 1 is set as a hexahedral structure, and the upper left and right sides of the fish collecting box 1 are fixedly connected to the rigid rod 2, the two rigid rods 2 are connected to the stainless steel chain, and the two stainless steel chains are connected to the generator, which is used to control the rise and fall of the fish collecting box 1 in the water.

[0032] Furthermore, three rectangular fish inlets 3 are provided on the left and right side walls of the fish collecting box 1. Figure 2As shown, the fish inlet 3 is covered with a first water-permeable net 4, which is installed loosely and can be stretched, and the middle part of the first water-permeable net 4 is provided with a fish inlet hole 5 with a small area. The four corners of the fish inlet 3 are connected with the four corners of the fish inlet hole 5 through elastic members respectively, such as Figure 3 As shown, the elastic members are composed of several elastic units 6 connected together. The elastic units 6 can be made of belts with good toughness. A cylindrical joint 7 is arranged between adjacent elastic units 6. The inner side end of the elastic unit 6 is rotatably connected with the outer side bottom surface of the cylindrical joint 7, which can be bolted. The elastic unit 6 can rotate around the side wall of the cylindrical joint 7. The rotating radius of the elastic unit 6 is slightly larger than the radius of the cylindrical joint 7. The cylindrical joint 7 and the elastic unit 6 only contact at the bottom surface, and adjacent elastic units 6 and the side wall of the cylindrical joint 7 in the middle do not contact, so as to leave a certain gap for rotation.

[0033] Further, as shown, Figure 1 The lower front side of the fish collecting box 1 is provided with a fish outlet, and the fish outlet is provided with a first opening and closing door 8. The upper side of the first opening and closing door 8 is hingedly connected with the fish collecting box 1. The lower end of the fish collecting box 1 is provided with two threaded holes, and the lower side of the first opening and closing door 8 is connected with the fish collecting box 1 by two bolts.

[0034] As shown, Figure 1 The oxygen generating device includes a spherical shell 9, the top of which is fixedly connected with the bottom of the fish collecting box 1, and the contact surfaces of the two are provided with a meshed water-permeable structure. The front side of the spherical shell 9 is provided with an opening, and the opening is provided with a second opening and closing door 10, such as Figure 4 As shown, the second opening and closing door 10 is provided in an arc-shaped structure. The left side of the second opening and closing door 10 is hingedly connected with the spherical shell 9. The right side of the second opening and closing door 10 is rotatably connected with a latch 11. The outer wall of the spherical shell 9 is fixedly provided with a tubular latch opening 12. The latch 11 is insertedly connected with the tubular latch opening 12. The opening and closing of the second opening and closing door 10 can be realized by rotating the latch 11.

[0035] Further, the inside of the spherical shell 9 is placed with a condensed spherical solid calcium oxide 13. The bottom of the spherical shell 9 is provided with several rod-shaped swing bodies 14, the middle part of which is hingedly connected with the spherical shell 9, and one end of the swing body 14 is in contact with the solid calcium oxide 13, and the other end of the swing body 14 is in contact with the water outside the spherical shell 9.

[0036] Further, as shown, Figure 1As shown, the side wall of the spherical shell 9 is provided with an oxygen outlet, the oxygen outlet is provided with a steel ring, the steel ring is fixedly connected with an oxygen hose 15, the inner end of the oxygen hose 15 is provided with a second water-permeable net 16, the outer end of the oxygen hose 15 is provided as a closed end, the oxygen hose 15 can freely float in the water with the water flow, a plurality of oxygen outlets 17 are arranged on the side wall of the oxygen hose 15 along the length direction thereof, and the oxygen outlets 17 gradually increase from the inner side to the outer side of the oxygen hose 15, so as to release oxygen and uniformly form an oxygen curtain.

[0037] When the fish collecting device is implemented, the generator is started to drive the stainless steel chain to lower the device into the water body, and the lowering depth can be freely determined (for example, 10 m). After being lowered, water enters the spherical shell 9 through the water-permeable net from the oxygen outlets 17 and the fish collecting box 1, reacts with the solid calcium dioxide 13 to generate oxygen, the oxygen is discharged through the fish inlet 3 and the oxygen outlets 17, and an oxygen curtain is formed. By using the oxygen-seeking property of freshwater fish, fish can be effectively attracted. The fish collecting box 1 is provided with a plurality of fish inlets 3, and fish can easily enter the fish collecting box 1. When the fish collides with the first water-permeable net 4 from the front, the first water-permeable net 4 can be opened towards the inner side of the fish collecting box 1. When the first water-permeable net 4 is opened, the elastic units 6 are stretched and rotated. After the fish enters the fish collecting box 1 from the fish inlet 5, the first water-permeable net 4 is bounced back by the elastic units 6. Since the elastic units 6 are connected through the cylindrical joints 7, the elastic units can maintain a vertical state. It is difficult for the fish to swim out of the fish collecting box 1, and there is a lot of oxygen in the fish collecting box 1, so the fish can be trapped in the fish collecting box 1.

[0038] During the reaction, CaO2 also generates Ca(OH)2 attached to its surface, which prevents it from continuing to react with water. With the flow of water, the rod-shaped swing body 14 will swing back and forth like a lever, continuously contacting the solid calcium dioxide 13, and scraping off the Ca(OH)2 generated on the surface of the solid calcium dioxide 13, so as to realize the stable reaction of the solid calcium dioxide 13 with water. After a period of reaction, the device is retracted as a whole by the generator through the stainless steel chain. After being retracted, the first opening and closing door 8 at the lower part of the fish collecting box 1 is opened to release the fish, and the second opening and closing door 10 is opened to replace the solid calcium dioxide 13, so as to realize one-time fish collecting. The fish collecting device is designed ingeniously, the overall structure is not complex, manual operation is simple, and the production cost is low.

[0039] The above is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure, direct or indirect application in other related technical fields based on the content of the specification and drawings of the present application is also within the patent protection scope of the present application.

Claims

1. An oxygen method fish gathering device, characterized by, It includes: The fish collecting box is connected with the lifting device; the fish collecting box is provided with a plurality of fish inlet and fish outlet, the fish inlet is provided with a first water permeable net, the first water permeable net is provided with a fish inlet hole, the four corners of the fish inlet are connected with the four corners of the fish inlet hole through elastic members respectively, and the fish outlet is provided with a first opening and closing door; the elastic member is composed of a plurality of elastic units, a cylindrical joint is arranged between adjacent elastic units, the end of the elastic unit is rotatably connected with the top surface or bottom surface of the cylindrical joint, and the elastic unit can rotate around the side wall of the cylindrical joint; The oxygen generating device includes a shell, the top of the shell is connected with the bottom of the fish collecting box, and the contact surfaces of the two are provided with a mesh structure; the shell is provided with an opening, the opening is provided with a second opening and closing door; the inside of the shell is provided with solid calcium dioxide; the side wall of the shell is connected with an oxygen hose, the inner end of the oxygen hose is provided with a second water permeable net, the outer end of the oxygen hose is provided with a closed end, and the side wall of the oxygen hose is provided with a plurality of oxygen outlet holes; a plurality of swing bodies are arranged on the shell, the swing bodies are hingedly connected with the shell, one end of the swing body is in contact with the solid calcium dioxide, and the other end of the swing body is in contact with the external water body of the shell; the oxygen outlet hole gradually increases from the inner side to the outer side of the oxygen hose.

2. The oxygen method fish aggregating device of claim 1, wherein, The lifting device includes two rigid rods fixedly connected with the two side walls of the fish collecting box, the two rigid rods are connected with stainless steel chains, and the two stainless steel chains are connected with a generator, which is used to control the lifting of the fish collecting box in water.

3. The oxygen method fish aggregating device of claim 1 or 2, wherein, The fish inlet is provided with six fish inlets, which are evenly distributed on the two side walls of the fish collecting box.

4. The oxygen method fish aggregating device of claim 1 or 2, wherein, One side of the first opening and closing door is hingedly connected with the fish collecting box, and the other side of the first opening and closing door is boltedly connected with the fish collecting box.

5. The oxygen method fish aggregating device of claim 1 or 2, wherein, The shell is provided with a spherical structure.

6. The oxygen method fish aggregating device of claim 1 or 2, wherein, The second opening and closing door is provided with an arc structure, one side of the second opening and closing door is hingedly connected with the shell, the other side of the second opening and closing door is rotatably connected with a latch, the shell is provided with a tubular latch opening, and the latch is insertedly connected with the tubular latch opening.

7. The oxygen method fish aggregating device of claim 1, wherein, The elastic unit is made of a belt.

Citation Information

Patent Citations

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