A shrimp ditch fishing device for rice-shrimp symbiotic culture

By designing a multifunctional shrimp ditch fishing device, the adaptability and efficiency issues of crayfish fishing in rice fields were solved, achieving efficient and low-cost shrimp fishing and cleaning, and improving the environmental friendliness of the equipment.

CN117837569BActive Publication Date: 2026-03-17JIANGSU AGRI MASCH DEV & APPL CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-02-27
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing rice-crayfish co-culture equipment suffers from problems such as insufficient adaptability, low harvesting efficiency, high labor costs, and poor environmental friendliness when harvesting crayfish in rice paddies.

Method used

A shrimp ditch fishing device was designed, which includes a box, a filtering mechanism, an angle adjustment mechanism, a conveying mechanism, an expansion mechanism, a transmission mechanism, a drive mechanism, and a cleaning mechanism. Through the combined use of these mechanisms, efficient shrimp fishing and cleaning can be achieved, adapting to the needs of different terrains and waters.

Benefits of technology

It improved the fishing efficiency and adaptability of the equipment, reduced labor costs, ensured the cleanliness and quality of the shrimp, avoided disturbance to the paddy field environment, and improved overall work efficiency.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The application discloses a rice-shrimp symbiotic breeding shrimp ditch fishing equipment in the technical field of rice-shrimp fishing, which comprises a box, a filtering mechanism is arranged in the box, an angle adjusting mechanism is arranged on the box, three conveying mechanisms are arranged on the angle adjusting mechanism, an expanding mechanism is arranged at one end of the conveying mechanism, an auxiliary wheel is arranged on the lower side of the conveying mechanism, a transmission mechanism is arranged on the box, the transmission mechanism is in transmission connection with the conveying mechanism and the filtering mechanism, a driving mechanism is arranged on the box, the driving mechanism is in transmission connection with the transmission mechanism and the angle adjusting mechanism, and a cleaning mechanism is arranged on the box, so that the working efficiency of the equipment is further improved, and the equipment is more convenient and fast during work.
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Description

Technical Field

[0001] This invention relates to the field of rice-shrimp harvesting technology, specifically to a shrimp ditch harvesting device for rice-shrimp co-culture. Background Technology

[0002] Currently, crayfish are increasingly favored by consumers, and the large demand is driving the development of the crayfish farming industry. Raising crayfish in rice paddies can enrich the soil, control weeds, and catch pests, increasing the economic benefits of rice paddies while also benefiting rice growth, thus making it popular among farmers.

[0003] In rice-crayfish co-culture, crayfish are scattered throughout the paddy fields. The presence of rice limits traditional harvesting methods such as netting, and the shallow water in paddy fields makes it difficult to use traps or similar equipment. This presents a significant challenge to using mechanical harvesting equipment. Current crayfish ditches have the following shortcomings: Adaptability: Some crayfish ditches may lack sufficient adaptability to the scattered distribution of crayfish in paddy fields, failing to effectively catch them; Low harvesting efficiency: Due to the presence of rice and water depth limitations, some harvesting equipment may be inefficient, failing to fully utilize the crayfish resources in the paddy fields; High harvesting costs: Currently, harvesting mainly relies on manual labor, resulting in high labor costs and limited efficiency, leading to high overall harvesting costs; Environmental friendliness: Some harvesting equipment may have a certain impact on the paddy field environment, such as disturbing rice roots or bottom mud, affecting the normal growth of rice.

[0004] To address the aforementioned issues, a technical solution was disclosed in patent number CN202122881793.0. However, this solution still has some problems in its application. Rice is typically planted in rows, creating a channel between each row. Shrimp live in these channels. Since shrimp are constantly moving, and the device catches them by pushing them inwards, this method is ineffective when the shrimp are swimming. Furthermore, the device cannot simultaneously catch shrimp in multiple channels, thus reducing its practicality and efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a shrimp ditch harvesting device for rice-shrimp co-culture, so as to solve the problem of low efficiency of the device mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A shrimp ditch harvesting device for rice-shrimp co-culture includes a box body, a filtering mechanism inside the box body, an angle adjustment mechanism mounted on the box body, three conveying mechanisms mounted on the angle adjustment mechanism, an expansion mechanism mounted at one end of each conveying mechanism, auxiliary wheels mounted on the lower side of each conveying mechanism, a transmission mechanism mounted on the box body, the transmission mechanism being drivenly connected to the conveying mechanism and the filtering mechanism, a drive mechanism mounted on the box body, the drive mechanism being drivenly connected to the transmission mechanism and the angle adjustment mechanism respectively, and a cleaning mechanism mounted on the box body.

[0008] Preferably, the filtration mechanism includes springs, a filter plate, a rotating rod, and cams. Four springs are fixedly connected inside the housing, two of which are longer than the other two. A filter plate is fixedly connected between the four springs. A rotating rod is rotatably connected inside the housing, and two cams are mounted on the rotating rod. The cams are movably connected to the filter plate. The combination of springs, filter plate, rotating rod, and cams achieves the filtration of impurities and waste in the shrimp ditch. The connection between the springs and the filter plate is achieved through the movable connection between the cams and the rotating rod. The difference in spring length allows adjustment of the filter plate's position to adapt to different aquaculture environments and needs.

[0009] Preferably, the angle adjustment mechanism includes a mounting base, an adjusting rod, and a self-locking assembly. Three mounting bases are mounted on the housing, and an adjusting rod is rotatably connected between the three mounting bases. The adjusting rod is equipped with a self-locking assembly. The use of mounting bases, adjusting rods, and self-locking assemblies allows for flexible adjustment of the equipment's angle. This design helps adapt to different terrains and water conditions, improving the equipment's adaptability.

[0010] Preferably, the conveying mechanism includes a conveying frame, a transmission rod, and a conveyor belt. The conveying frame is rotatably connected to the mounting base. The conveying frame is fixedly connected to the adjusting rod. The conveying frame has multiple holes. Two transmission rods are rotatably connected to the conveying frame. A conveyor belt is connected between the two transmission rods.

[0011] Preferably, the expansion mechanism includes a front shovel, a swing plate, a first hydraulic rod, and a connecting plate. The front shovel is fixedly connected to one end of the conveyor frame, and swing plates are rotatably connected to both sides of the conveyor frame. The first hydraulic rod is provided between the swing plate and the conveyor frame, and a connecting plate is fixedly connected between the swing plate and the front shovel. The connecting plate is an elastic rubber layer.

[0012] Preferably, the transmission mechanism includes a slide groove, a second hydraulic rod, and a slider. The slide groove is provided on the housing, the second hydraulic rod is installed on the housing, and a slider is installed at one end of the second hydraulic rod. The slider is slidably connected in the slide groove.

[0013] Preferably, the driving mechanism includes a first rotating column, a second rotating column, a drive motor, and a telescopic rod. The first rotating column and the second rotating column are rotatably connected to the housing. The first rotating column is driven by a transmission mechanism, and the second rotating column is driven by an angle adjustment mechanism. The drive motor is installed on the housing, and the output end of the drive motor is fixedly connected to the telescopic rod. The telescopic rod is movably connected to the first rotating column and the second rotating column, respectively.

[0014] Preferably, the cleaning mechanism includes a filter box, a pump, and a cleaning plate. The filter box is installed on the box body, the pump is installed on the filter box, and the cleaning plate is installed on the box body. The cleaning plate is located on the upper side of the conveying mechanism, and the cleaning plate and the pump are connected through each other. The bottom surface of the box body is equipped with casters.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention utilizes an expansion mechanism within the device to adjust the width between each pair of shrimp catchers, resulting in higher efficiency and greater adaptability. This prevents the device from failing to fill the catch due to excessively wide gaps, which would reduce its harvesting efficiency. Simultaneously, the angle adjustment mechanism allows for adjustment of the conveying mechanism's angle based on the river's depth, facilitating easier catches and preventing situations where the device cannot reach the bottom in excessively deep or shallow waters. This further ensures efficient harvesting. During harvesting, a cleaning mechanism effectively washes the caught shrimp, ensuring their cleanliness and preventing them from becoming too dirty and affecting quality. Once inside the tank, a filtration mechanism effectively separates the shrimp from impurities, further guaranteeing the quality of the catch. The coordinated operation of all components allows for rapid shrimp harvesting without the need for nets, further enhancing the device's efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the front view structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the structure from the lower side view of the present invention;

[0022] Figure 5 This is a schematic diagram of the front-view cross-sectional structure of the present invention.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Housing; 2. Filtering mechanism; 3. Spring; 4. Filter plate; 5. Rotating rod; 6. Cam; 7. Angle adjustment mechanism; 8. Mounting base; 9. Adjusting rod; 10. Conveying mechanism; 11. Conveying frame; 12. Transmission rod; 13. Conveyor belt; 14. Expansion mechanism; 15. Front shovel; 16. Swing plate; 17. First hydraulic rod; 18. Connecting plate; 19. Self-locking assembly; 20. Auxiliary wheel; 21. Transmission mechanism; 22. Slide groove; 23. Second hydraulic rod; 24. Slider; 25. Drive mechanism; 26. First rotating column; 27. Second rotating column; 28. Drive motor; 29. ​​Telescopic rod; 30. Cleaning mechanism; 31. Filter box; 32. Pump; 33. Cleaning plate; 34. Moving wheel. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figures 1-5 The present invention provides a technical solution:

[0027] A shrimp ditch harvesting device for rice-shrimp co-culture includes a box body 1, a filter mechanism 2 inside the box body 1, an angle adjustment mechanism 7 installed on the box body 1, three conveying mechanisms 10 on the angle adjustment mechanism 7, an expansion mechanism 14 installed at one end of each conveying mechanism 10, auxiliary wheels 20 installed on the lower side of each conveying mechanism 10, a transmission mechanism 21 installed on the box body 1, the transmission mechanism 21 being connected to the conveying mechanisms 10 and the filter mechanism 2, a drive mechanism 25 installed on the box body 1, the drive mechanism 25 being connected to the transmission mechanism 21 and the angle adjustment mechanism 7 respectively, and a cleaning mechanism 30 installed on the box body 1.

[0028] The filtration mechanism 2 includes springs 3, filter plates 4, rotating rods 5, and cams 6. Four springs 3 are fixedly connected inside the housing 1, with two springs 3 being longer than the other two. Filter plates 4 are fixedly connected between the four springs 3. Rotating rods 5 are rotatably connected inside the housing 1, and two cams 6 are installed on the rotating rods 5. Cams 6 are movably connected to filter plates 4. This facilitates the filtration of shrimp entering the housing 1, effectively separating shrimp from impurities and further improving the cleanliness of the captured shrimp.

[0029] The angle adjustment mechanism 7 includes a mounting base 8, an adjusting rod 9, and a self-locking component 19. Three mounting bases 8 are installed on the housing 1, and the adjusting rod 9 is rotatably connected between the three mounting bases 8. The self-locking component 19 is installed on the adjusting rod 9. This facilitates the control of the conveying angle of the conveying mechanism 10, thereby facilitating the capture of shrimp.

[0030] The conveying mechanism 10 includes a conveying frame 11, a transmission rod 12, and a conveyor belt 13. The conveying frame 11 is rotatably connected inside the mounting base 8. The conveying frame 11 is fixedly connected to the adjusting rod 9. The conveying frame 11 has multiple holes. Two transmission rods 12 are rotatably connected inside the conveying frame 11. The conveyor belt 13 is connected between the two transmission rods 12. This facilitates the capture and transport of shrimp from each pile, thereby improving the capture efficiency of the equipment.

[0031] The expansion mechanism 14 includes a front shovel 15, a swing plate 16, a first hydraulic rod 17, and a connecting plate 18. The front shovel 15 is fixedly connected to one end of the conveyor frame 11, and the swing plates 16 are rotatably connected to both sides of the conveyor frame 11. The first hydraulic rod 17 is provided between the swing plate 16 and the conveyor frame 11. The connecting plate 18 is fixedly connected between the swing plate 16 and the front shovel 15. The connecting plate 18 is an elastic rubber layer. This allows for adjustment of the movement space of the conveyor mechanism 10 according to the width of each clump, thereby ensuring that the equipment is suitable for catching shrimp in each clump.

[0032] The transmission mechanism 21 includes a slide groove 22, a second hydraulic rod 23, and a slider 24. The slide groove 22 is provided on the housing 1, and the second hydraulic rod 23 is installed on the housing 1. A slider 24 is installed at one end of the second hydraulic rod 23, and the slider 24 is slidably connected in the slide groove 22. This facilitates the connection between the drive mechanism 25 and the conveying mechanism 10, allowing the conveying mechanism 10 to adapt to different angle captures.

[0033] The drive mechanism 25 includes a first rotating column 26, a second rotating column 27, a drive motor 28, and a telescopic rod 29. The first rotating column 26 and the second rotating column 27 are rotatably connected to the housing 1. The first rotating column 26 is connected to the transmission mechanism 21, and the second rotating column 27 is connected to the angle adjustment mechanism 7. The drive motor 28 is installed on the housing 1, and the output end of the drive motor 28 is fixedly connected to the telescopic rod 29. The telescopic rod 29 is movably connected to the first rotating column 26 and the second rotating column 27 respectively. This facilitates the angle adjustment and capture and conveying of the equipment, further improving the capture efficiency of the equipment.

[0034] The cleaning mechanism 30 includes a filter box 31, a pump 32, and a cleaning plate 33. The filter box 31 is installed on the box body 1, the pump 32 is installed on the filter box 31, and the cleaning plate 33 is installed on the box body 1. The cleaning plate 33 is located on the upper side of the conveying mechanism 10, and the cleaning plate 33 and the pump 32 are connected through each other. The bottom surface of the box body 1 is equipped with casters 34 to facilitate the cleaning of the captured shrimp, thereby ensuring the cleanliness of the shrimp.

[0035] Working principle:

[0036] During operation, the equipment is placed in a paddy field. Because the rice is planted in clumps, channels are created between each clump, where shrimp live. When the equipment is placed in a channel, the expansion mechanism 14 within the equipment can be adjusted according to the channel width. When the expansion mechanism 14 is adjusted, the length of the first hydraulic rod 17 changes, causing the swing plate 16 to swing. At this time, the length of the connecting plate 18 changes, and the distance between the two swing plates 16 can be adjusted to adapt to the channel width. Simultaneously, the telescopic rod 29 is shortened. When the telescopic rod 29 shortens, it engages with the second rotating column 27. The telescopic rod 29 then controls the rotation of the second rotating column 27, which in turn controls the rotation of the adjusting rod 9. This positions the expansion mechanism 14 at the front end of the conveying mechanism 10 within the channel. The angle of the conveying mechanism 10 is then adjusted according to the channel depth. Once the angle of the conveying mechanism 10 is adjusted... The telescopic rod 29 is extended, and at this time, the telescopic rod 29 and the first rotating column 26 are engaged. At the same time, the first rotating column 26 controls the transmission rod 12 to rotate through the transmission mechanism 21. When the transmission rod 12 rotates, the conveyor belt 13 rotates at the same time, which pushes the equipment to move, so that the conveying mechanism 10 and the expansion mechanism 14 move in the river channel. Then, the shrimp are captured by the cooperation of the expansion mechanism 14 and the conveying mechanism 10. When the shrimp are conveyed on the conveying mechanism 10, the pump 32 draws out the liquid through the filter box 31 and conveys it to the cleaning plate 33, so that the cleaning plate 33 cleans the shrimp. When the conveying mechanism 10 conveys the shrimp into the box 1, the shrimp fall onto the filter plate 4. At this time, the rotating rod 5 in the filter mechanism 2 rotates at the same time through the transmission mechanism 21, which causes the filter plate 4 and the spring 3 to vibrate, thereby filtering the shrimp. This process is repeated to complete the capture of shrimp.

[0037] This invention utilizes an expansion mechanism 14 within the device for adjustment. This allows the device to adjust the width between each pair of shrimp catchers, resulting in higher efficiency and greater adaptability. It prevents the device from failing to fill the catch if the distance between the two pairs of catchers is too wide, thus reducing its harvesting efficiency. Simultaneously, the angle adjustment mechanism 7 allows for adjustment of the conveying mechanism 10's angle according to the river depth, making harvesting more convenient and preventing situations where the device cannot reach the bottom due to excessively deep or shallow water. This further ensures the efficiency of the equipment during harvesting. During the harvesting process, the cleaning mechanism 30 can effectively clean the harvested shrimp, thus ensuring their cleanliness and preventing them from being too dirty, which would affect their quality. When the shrimp enter the tank 1, the filtration mechanism 2 can effectively separate the shrimp from impurities, further ensuring the quality of the harvested shrimp. The various parts of the equipment work together to allow the equipment to quickly complete the harvesting of shrimp without the need for a net, further improving the working efficiency of the equipment.

Claims

1. A shrimp ditch fishing device for rice-shrimp symbiotic culture, comprising a box (1), characterized in that: The box (1) is provided with a filtering mechanism (2), the box (1) is provided with an angle adjusting mechanism (7), the angle adjusting mechanism (7) is provided with three conveying mechanisms (10), one end of the conveying mechanism (10) is provided with an expansion mechanism (14), the lower side of the conveying mechanism (10) is provided with an auxiliary wheel (20), the box (1) is provided with a transmission mechanism (21), the transmission mechanism (21) is in transmission connection with the conveying mechanism (10) and the filtering mechanism (2), the box (1) is provided with a driving mechanism (25), the driving mechanism (25) is in transmission connection with the transmission mechanism (21) and the angle adjusting mechanism (7) respectively, and the box (1) is provided with a cleaning mechanism (30); the filtering mechanism (2) comprises springs (3), filter plates (4), rotating rods (5) and cams (6), four springs (3) are fixedly connected in the box (1), the lengths of two springs (3) are longer than those of the other two springs (3), the four springs (3) are fixedly connected with the filter plates (4), the rotating rods (5) are rotatably connected in the box (1), two cams (6) are installed on the rotating rod (5), and the cams (6) are movably connected with the filter plates (4); the angle adjusting mechanism (7) comprises mounting seats (8), adjusting rods (9) and self-locking assemblies (19), three mounting seats (8) are installed on the box (1), the adjusting rods (9) are rotatably connected between the three mounting seats (8), and the self-locking assemblies (19) are installed on the adjusting rods (9); the conveying mechanism (10) comprises conveying frames (11), transmission rods (12) and conveying belts (13), the conveying frames (11) are rotatably connected in the mounting seats (8) and fixedly connected to the adjusting rods (9), a plurality of leakage holes are formed in the conveying frames (11), the transmission rods (12) are rotatably connected in the conveying frames (11), and the conveying belts (13) are in transmission connection between the two transmission rods (12); the expansion mechanism (14) comprises front shovels (15), swing plates (16), first hydraulic rods (17) and connecting plates (18), the front shovels (15) are fixedly connected to one end of the conveying frames (11), the swing plates (16) are rotatably connected to the two sides of the conveying frames (11), the first hydraulic rods (17) are arranged between the swing plates (16) and the conveying frames (11), the connecting plates (18) are fixedly connected between the swing plates (16) and the front shovels (15), and the connecting plates (18) are elastic rubber layers.

2. The fish channel catching device for rice shrimp symbiosis culture according to claim 1, characterized in that: The transmission mechanism (21) comprises a sliding groove (22), a second hydraulic rod (23) and a sliding block (24), the sliding groove (22) is formed in the box (1), the second hydraulic rod (23) is installed on the box (1), one end of the second hydraulic rod (23) is provided with the sliding block (24), and the sliding block (24) is slidably connected in the sliding groove (22).

3. The fish channel catching device for rice shrimp symbiosis culture according to claim 1, characterized in that: Said drive mechanism (25) includes first rotating column (26), second rotating column (27), drive motor (28) and telescopic rod (29), first rotating column (26) and second rotating column (27) are rotatably connected on the box (1), first rotating column (26) and transmission mechanism (21) are in transmission connection, second rotating column (27) and angle adjusting mechanism (7) are in transmission connection, drive motor (28) is installed on the box (1), the output end of drive motor (28) is fixedly connected with telescopic rod (29), and telescopic rod (29) is movably connected with first rotating column (26) and second rotating column (27) respectively.

4. The fish channel catching device for rice shrimp symbiosis culture according to claim 1, characterized in that: Said cleaning mechanism (30) includes filter box (31), pump (32) and cleaning plate (33), filter box (31) is installed on the box (1), pump (32) is installed on filter box (31), cleaning plate (33) is installed on the box (1), cleaning plate (33) is located on the upper side of conveying mechanism (10), cleaning plate (33) and pump (32) are in through connection, and movable wheel (34) is installed on the bottom surface of the box (1).

Citation Information

Patent Citations

  • Fishing device for crayfish bred in rice field

    CN216254829U

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    CN102369895A

  • Inner-periphery ridge building method for shrimp and rice joint culturing mode

    CN104885975A