Three-dimensional culture net cage for river crab culture
The river crab cultivation system addresses the issue of dead crabs sinking by using a retrieval mechanism to trap and remove them, thereby preventing disease transmission and maintaining crab health.
Patent Information
- Application Number
- CN202421972006.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-15
AI Technical Summary
In the prior art, dead crabs in river crab farming cages sink to the bottom and cannot be detected and processed in time, resulting in the spread of bacterial diseases and affecting the health of other river crabs.
A three-dimensional breeding cage for river crab farming is designed, which includes a seine and a dead crab collection component. The operator pulls the pull rope on the shore, so that the movable plate moves at the bottom of the seine, and the live crabs crawl out, and the dead crabs remain on the movable plate, which is convenient for timely clearing and picking.
The timely cleaning of dead crabs has been achieved, the spread of bacterial diseases has been avoided, and the health of other river crabs has been protected.
Smart Images

Figure CN223094512U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cage, in particular to a three-dimensional culture cage for river crab farming. Background Art
[0002] River crab is the most important freshwater crab in China. Its meat is delicate, taste is delicious, and nutrition is extremely rich. Due to the strong adaptability of river crab and wide breeding range, in recent years, the three-dimensional cage culture technology of river crab has emerged across the country, bringing good economic benefits to farmers.
[0003] However, in the prior art, there are more river crabs cultured in the cage, and the dead crabs sink to the bottom and cannot be found and processed in time, resulting in the spread of bacterial diseases and affecting the health of other river crabs.
[0004] Therefore, in order to solve such problems, we propose a three-dimensional culture cage for river crab farming. Content of the Utility Model
[0005] The purpose of the utility model is to provide a three-dimensional culture cage for river crab farming, aiming at solving the problem in the above background art that the dead crabs sink to the bottom and cannot be found and processed in time in the prior art, which affects the health of other river crabs.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a three-dimensional culture cage for river crab farming, including an enclosure net, and fixing components are arranged around the enclosure net. The three-dimensional culture cage further includes a dead crab collection component, one end of the dead crab collection component is provided with a reset component, and one end of the reset component is connected to the fixing component; the dead crab collection component includes a movable plate, two pull ropes are arranged at the end of the movable plate far away from the reset component, and the other ends of the two pull ropes are wound around the fixing component; by an operator pulling the pull ropes on the shore, the movable plate moves along the direction close to the shore at the bottom of the enclosure net. At this time, the live crabs will crawl outwards when they are induced, and the dead crabs cannot move and will remain on the movable plate. The operator can pick out the dead crabs on the movable plate and fish them out in time.
[0007] Preferably, the enclosure net includes a net body, and net ropes are respectively arranged at eight corners of the net body. Through the traction of the net ropes, the net body can change its shape according to requirements.
[0008] Preferably, the fixing component includes four columns, a limiting plate is arranged between adjacent two columns, a cross bar is arranged on the column above the limiting plate, a guide wheel is movably arranged on the cross bar, and the pull rope is wound outside the guide wheel. By arranging a cross bar between the columns, the columns can be kept stable in water, the net ropes are fixed on the columns, so that the net body can keep a fixed shape, and by driving the guide wheel to rotate through the pull rope, the pull rope can be wound on the guide wheel.
[0009] Preferably, the limiting plate includes a limiting groove through which the movable plate passes. There are two limiting holes above the limiting groove, and two pulling ropes pass through the limiting holes. Through the limiting groove, the movable plate always moves within the limiting groove, and through the limiting holes, the pulling ropes always move within the limiting holes, so that the movable plate does not pry when moving underwater.
[0010] Preferably, the movable plate includes a movable bottom plate. One end of the movable bottom plate is provided with a reset component. One end of the movable bottom plate away from the reset component is movably provided with a first folding plate. The upper side of the first folding plate and the movable bottom plate are also connected by a first reset spring. One end of the first folding plate away from the movable bottom plate is movably provided with a second folding plate. The upper side of the first folding plate and the second folding plate are also connected by a second reset spring. By an operator pulling the pulling rope, the two second reset springs between the second folding plate and the first folding plate are shortened until the second folding plate and the first folding plate form a 90° angle; by continuing to pull the pulling rope, the two first reset springs between the first folding plate and the movable bottom plate are shortened until the first folding plate and the movable bottom plate form a 90° angle; by continuing to pull the pulling rope, the entire movable plate moves horizontally towards the shore.
[0011] Preferably, a square groove is formed above the second folding plate. Through the square groove, an operator can find dead crabs under the square groove and fish them out in time.
[0012] Preferably, the reset component includes a fixed block fixedly connected to the movable bottom plate. A straight spring is arranged between the fixed block and the limiting plate. After the operator releases the pulling rope, the first reset spring and the second reset spring extend to their original lengths, and the straight spring shortens to its original length, so that the movable plate moves horizontally away from the shore to its original position.
[0013] The utility model has the following beneficial effects:
[0014] In the utility model, the dead crab collecting component includes a movable plate. Two pulling ropes are arranged at one end of the movable plate away from the reset component. The other ends of the two pulling ropes are wound on the fixed component. By an operator pulling the pulling ropes on the shore, the movable plate moves along the bottom of the enclosure net towards the shore. At this time, live crabs will crawl outwards when being induced, and dead crabs that cannot move will remain on the movable plate. The operator can pick out the dead crabs on the movable plate and fish them out in time, thus avoiding the problem that the spread of bacterial diseases caused by dead crabs not being fished out in time affects the health of other river crabs. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a three-dimensional schematic diagram of a three-dimensional culture net cage for river crab culture proposed by the utility model Figure 1 ;
[0016] Figure 2 is a three-dimensional schematic diagram of a three-dimensional culture net cage for river crab culture proposed by the utility model Figure 2 ;
[0017] Figure 3 Schematic three - dimensional structure diagram of the dead crab collection component and the reset component of a three - dimensional culture net cage for river crab culture proposed by the present utility model;
[0018] Figure 4 A three - dimensional culture net cage for river crab culture proposed by the present utility model Figure 3 Enlarged schematic diagram at position A;
[0019] Figure 5 Schematic folding state diagram of folding plate one and folding plate two of a three - dimensional culture net cage for river crab culture proposed by the present utility model;
[0020] Figure 6 Schematic three - dimensional diagram of the reset component of a three - dimensional culture net cage for river crab culture proposed by the present utility model.
[0021] Legend:
[0022] 1. Enclosure net; 11. Net body; 12. Net rope; 2. Fixing component; 21. Column; 22. Cross bar; 23. Guide wheel; 24. Limiting plate; 241. Limiting groove; 242. Limiting hole; 3. Dead crab collection component; 31. Movable plate; 311. Movable bottom plate; 312. Folding plate one; 313. Folding plate two; 3131. Square groove; 314. First reset spring; 315. Second reset spring; 32. Pulling rope; 4. Reset component; 41. Fixed block; 42. Straight spring. Specific implementation manners
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0025] Please refer to Figure 1 - Figure 2 , an embodiment provided by the present utility model: a three-dimensional aquaculture net cage for raising river crabs, including a surrounding net 1, fixing components 2 are arranged around the surrounding net 1. The three-dimensional aquaculture net cage further includes a dead crab collecting component 3. One end of the dead crab collecting component 3 is provided with a reset component 4, and one end of the reset component 4 is connected to the fixing component 2; the dead crab collecting component 3 includes a movable plate 31. Two pulling ropes 32 are arranged at the end of the movable plate 31 away from the reset component 4, and the other ends of the two pulling ropes 32 are wound around the fixing component 2; by an operator pulling the pulling ropes 32 on the shore, the movable plate 31 moves along the bottom of the surrounding net 1 in the direction close to the shore. At this time, the live crabs will climb outwards due to induction, and the dead crabs that cannot move will remain on the movable plate 31. The operator can pick out the dead crabs on the movable plate 31 and fish them out in time, thus avoiding the problem that the spread of bacterial diseases caused by the failure to fish out the dead crabs in time affects the health of other river crabs.
[0026] Please refer to Figure 2 , the surrounding net 1 includes a net body 11, and net ropes 12 are respectively arranged at the eight corners of the net body 11. Through the traction of the net ropes 12, the net body 11 can change its shape according to requirements.
[0027] Please refer to Figure 2, the fixed part 2 includes four upright columns 21. A limiting plate 24 is arranged between two adjacent upright columns 21. A cross bar 22 is arranged on the upright column 21 above the limiting plate 24. A guide wheel 23 is movably arranged on the cross bar 22. The pulling rope 32 is wound around the outer side of the guide wheel 23. By arranging the cross bar 22 between the upright columns 21, the upright columns 21 can be kept stable in water. The net rope 12 is fixed to the upright columns 21, so that the net body 11 can keep a fixed shape. By driving the guide wheel 23 to rotate through the pulling rope 32, the pulling rope 32 can be wound on the guide wheel 23.
[0028] Please refer to Figure 3 - Figure 4 , the limiting plate 24 includes a limiting groove 241. The movable plate 31 passes through the limiting groove 241. Two limiting holes 242 are arranged above the limiting groove 241. Two pulling ropes 32 pass through the limiting holes 242. Through the limiting groove 241, the movable plate 31 always moves within the limiting groove 241. Through the limiting holes 242, the pulling ropes 32 always move within the limiting holes 242, so that the movable plate 31 does not pry when moving underwater and always moves in the horizontal direction.
[0029] Please refer to Figure 3 - Figure 5 , the movable plate 31 includes a movable bottom plate 311. One end of the movable bottom plate 311 is provided with a reset component 4. The end of the movable bottom plate 311 far from the reset component 4 is movably provided with a first folding plate 312. The upper sides of the first folding plate 312 and the movable bottom plate 311 are also connected by a first reset spring 314. The end of the first folding plate 312 far from the movable bottom plate 311 is movably provided with a second folding plate 313. The upper sides of the first folding plate 312 and the second folding plate 313 are also connected by a second reset spring 315. By the operator pulling the pulling rope 32, the two second reset springs 315 between the second folding plate 313 and the first folding plate 312 are shortened until the second folding plate 313 and the first folding plate 312 form a 90° angle; by continuing to pull the pulling rope 32, the two first reset springs 314 between the first folding plate 312 and the movable bottom plate 311 are shortened until the first folding plate 312 and the movable bottom plate 311 form a 90° angle; by continuing to pull the pulling rope 32, the whole movable plate 31 moves horizontally towards the shore. A square groove 3131 is opened above the second folding plate 313. Through the square groove 3131, the operator can find dead crabs under the square groove 3131 and fish them out in time.
[0030] Please refer to Figure 6 , the reset component 4 includes a fixed block 41. The fixed block 41 is fixedly connected with the movable bottom plate 311. A straight spring 42 is arranged between the fixed block 41 and the limiting plate 24. After the operator loosens the pulling rope 32, the first reset spring 314 and the second reset spring 315 extend to their original lengths, and the straight spring 42 shortens to its original length, so that the movable plate 31 moves horizontally away from the shore to its original position.
[0031] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A three-dimensional aquaculture net cage for river crab farming, comprising an enclosure net (1), and fixing components (2) are arranged around the enclosure net (1), characterized in that: The three-dimensional aquaculture cage also includes a dead crab collection component (3). One end of the dead crab collection component (3) is provided with a reset component (4), and one end of the reset component (4) is connected to the fixing component (2); The dead crab collection component (3) includes a movable plate (31). Two pulling ropes (32) are arranged at one end of the movable plate (31) away from the reset component (4), and the other ends of the two pulling ropes (32) are wound around the fixing component (2); By an operator pulling the pulling rope (32) on the shore, the movable plate (31) moves along the direction close to the shore at the bottom of the enclosure net (1), and the operator can pick out dead crabs on the movable plate (31) and fish them out in time.
2. The three-dimensional culture net cage for culturing Chinese mitten crabs according to claim 1, characterized in that: The enclosure net (1) includes a net body (11), and net ropes (12) are respectively arranged at eight corners of the net body (11).
3. The three-dimensional culture cage for river crab culture according to claim 1, wherein: The fixing component (2) includes four columns (21). A limiting plate (24) is arranged between two adjacent columns (21). A cross bar (22) is arranged on the column (21) above the limiting plate (24), and a guide wheel (23) is movably arranged on the cross bar (22). The pulling rope (32) is wound outside the guide wheel (23).
4. The three-dimensional culture cage for river crab culture according to claim 3, characterized in that: The limiting plate (24) includes a limiting groove (241). The movable plate (31) passes through the limiting groove (241). Two limiting holes (242) are arranged above the limiting groove (241), and the two pulling ropes (32) pass through the limiting holes (242).
5. The three-dimensional culture cage for river crab culture according to claim 1, wherein: The movable plate (31) includes a movable bottom plate (311). One end of the movable bottom plate (311) is provided with a reset component (4). A first folding plate (312) is movably arranged at one end of the movable bottom plate (311) away from the reset component (4). The first folding plate (312) and the upper side of the movable bottom plate (311) are also connected by a first reset spring (314). A second folding plate (313) is movably arranged at one end of the first folding plate (312) away from the movable bottom plate (311). The first folding plate (312) and the upper side of the second folding plate (313) are also connected by a second reset spring (315).
6. The three-dimensional culture net cage for river crab culture according to claim 5, characterized in that: A square groove (3131) is formed above the second folding plate (313).
7. The three-dimensional culture cage for river crab culture according to claim 4, wherein: The reset component (4) includes a fixed block (41). The fixed block (41) is fixedly connected to the movable bottom plate (311), and a straight spring (42) is arranged between the fixed block (41) and the limiting plate (24).