Feed device for accurately feeding rice and shrimps
By combining a pneumatic feeder and a spreading assembly, the problems of unstable power output and uneven feed distribution in rice-shrimp farming equipment have been solved, achieving efficient and uniform feed delivery to meet the needs of farming ponds of different sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-03
AI Technical Summary
Existing rice-shrimp farming equipment suffers from problems such as unstable power output, feed jamming, uneven conveying speed, and difficulty in achieving efficient long-distance conveying during the feeding process, especially in large-scale farming ponds.
It adopts a pneumatic feeder, air supply pipe and flange pipe to provide a stable power source. Combined with the dispersing component and the spreading component, including impeller and feeder, it can achieve uniform dispersion and precise feeding of feed.
It improves the dynamic stability and uniformity of feed delivery, ensures full coverage of feed in the breeding area, enhances feeding efficiency and effectiveness, and adapts to different feed types and feeding distances.
Smart Images

Figure CN224069501U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice-shrimp feeders, and in particular to a feeder for precise feeding of rice and shrimp. Background Technology
[0002] Rice-crayfish farming, as an ecologically efficient farming model, has been widely promoted in my country's agricultural production in recent years. This model achieves resource recycling and improved economic benefits through the symbiosis of rice and crayfish. However, in the process of rice-crayfish farming, the precise feeding of feed is a key factor affecting the growth of crayfish, water quality maintenance, and farming costs.
[0003] Some existing equipment relies solely on gravity or simple screw conveyors, resulting in unstable power output. When conveying feed of varying particle sizes, problems such as feed jamming and uneven conveying speed can easily occur, leading to inconsistent feeding amounts and affecting the crayfish's feeding patterns. Moreover, this single power structure is difficult to achieve long-distance, efficient feed delivery when dealing with large-scale aquaculture ponds. Therefore, improvements are needed to address these issues. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a precise feeder for rice-shrimp.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a feeder for precise feeding of rice and shrimp, comprising a feed box, a feeding hopper connected to the bottom surface of the feed box, a cover plate hinged to the top surface of the feeding hopper, two flange pipes symmetrically connected to the bottom sides of the feeding hopper, four support legs on the periphery of the bottom surface of the feed box, an installation platform fixedly connected to the four support legs at the middle of the feeding hopper, a dispersing component on the installation platform, a pneumatic feeder on one side of the bottom of the four support legs, the output shaft of the pneumatic feeder being connected to one of the two flange pipes via an air supply connecting pipe, a conveying pipe connected to the other flange pipe of the two flange pipes, and a spreading component connected to the end of the conveying pipe.
[0006] Preferably, the dispersing component includes a first motor, and the first motor is coaxially fixed to a crushing and stirring rod that is rotatably disposed in the feeding hopper.
[0007] Preferably, the spreading assembly includes a connecting pipe, a dispensing device is inserted into the top end of the connecting pipe, a connecting shaft is fixedly connected to the axis of the dispensing device, a rotating locking platform fixed inside the connecting pipe is rotatably inserted into the bottom end of the connecting shaft, and a plurality of mounting rings are equidistantly arranged on the connecting shaft, and an impeller is sleeved on one of the mounting rings.
[0008] Preferably, the dispensing and distributing device has multiple discharge holes equidistantly arranged along its axis, the inner wall of the top end of the connecting pipe is provided with a snap-fit connecting ring, and the outer wall of the dispensing and distributing device is provided with an arc-shaped groove corresponding to the snap-fit connecting ring.
[0009] Preferably, an installation table is fixedly connected to the middle of the outer wall of the connecting pipe, a floating platform is fixedly connected to the bottom end of the installation table, and multiple supporting floats are fixedly installed on the bottom periphery of the floating platform.
[0010] Preferably, the sprayer has an inverted frustum-shaped cross section, a chamfered edge at the top, and the outlet of the discharge hole is located on the chamfered surface.
[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of a pneumatic feeder, air supply pipe, and flange pipe, facilitates the provision of a stable power source, improving the power stability during feed conveying and avoiding jamming or uneven conveying speed caused by inconsistent feed particle sizes. Through the cooperation of the impeller, connecting shaft, and dispensing distributor, the impeller drives the dispensing distributor to rotate under the propulsion of airflow, facilitating the even distribution of feed from multiple outlet holes and improving the uniformity of feed distribution. Simultaneously, the cooperation between the dispensing distributor and the snap-fit connecting ring facilitates the quick replacement of dispensing distributors of different specifications, further improving the equipment's adaptability to different feed types and feeding distances. Through the synergistic cooperation of power transmission and the dispensing structure, not only is stable and efficient feed conveying achieved, but also the feed is evenly covered in the breeding area. Ultimately, this solves the problems of unstable power output, uneven dispensing, and difficulty in adapting to diverse feeding needs in traditional equipment, improving the overall efficiency and effectiveness of feed conveying and feeding. Attached Figure Description
[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0013] Figure 1 This is a first-view schematic diagram of the overall structure proposed in this utility model;
[0014] Figure 2 This is a first-view schematic diagram of the overall structure of the material box proposed in this utility model;
[0015] Figure 3 This is a second-view schematic diagram of the overall structure of the material box proposed in this utility model;
[0016] Figure 4 This is a schematic diagram of the overall structure of the floating platform proposed in this utility model;
[0017] Figure 5This is a schematic cross-sectional view of the overall structure of the dispensing and distributing device proposed in this utility model.
[0018] The following are the components listed in the diagram: 1. Material bin; 2. Feed hopper; 3. Pneumatic feeder; 4. Conveying pipe; 5. Dispensing distributor; 6. First motor; 7. Air supply pipe; 8. Cover plate; 9. Crushing and mixing rod; 10. Snap-fit connecting ring; 11. Impeller; 12. Support float; 13. Discharge hole; 14. Connecting shaft; 15. Floating platform. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Example: See Figure 1-5The present invention relates to a precision rice-shrimp feeding device, comprising a feed bin 1, a feeding hopper 2 connected to the bottom of the feed bin 1, a cover plate 8 hinged to the top of the feeding hopper 2, two flange pipes symmetrically connected to the bottom sides of the feeding hopper 2, four support legs on the periphery of the bottom of the feed bin 1, an installation platform fixedly connected to the four support legs at the middle of the feeding hopper 2, a dispersing component on the installation platform, and a pneumatic feeder 3 on one side of the bottom of the four support legs. The output shaft of the pneumatic feeder 3 is connected to one of the two flange pipes via an air supply connecting pipe 7. A feed conveying pipe 4 is connected to another flange pipe, and a feed spreading component is connected to the end of the feed conveying pipe 4. All components work together to achieve the process of feed from storage to precise and uniform spreading. The pneumatic feeder 3 uses a pneumatic actuator such as the FESTO ADN series to provide stable power. The feed bin 1, discharge hopper 2, and feed conveying pipe 4 are made of high-strength engineering plastics, which are corrosion-resistant, wear-resistant, and suitable for humid aquaculture environments. The support legs, mounting platform, and other aluminum alloy components are lightweight, high-strength, easy to install and move, and improve the efficiency and accuracy of feed feeding. To enhance the stability and durability of the equipment in rice-shrimp farming environments, the dispersing component includes a first motor 6, which is coaxially fixed to a crushing and agitating rod 9 rotatably mounted inside the feeding hopper 2. The JGB37-520 micro DC motor, serving as the first motor 6, leverages its small size, stable speed, and high torque to drive the stainless steel crushing and agitating rod 9, effectively breaking up clumps of feed, ensuring smooth feeding, and improving the continuity and efficiency of feed delivery. The spreading component includes a connecting pipe, with a spreading and distributing device 5 inserted into the top of the connecting pipe. A connecting shaft 14 is fixedly connected to the axis of the device. A rotating snap-fit platform fixed inside the connecting pipe is rotatably inserted into the bottom end of the connecting shaft 14. Multiple mounting rings are equidistantly arranged on the connecting shaft 14. An impeller 11 is sleeved on one of the mounting rings. The impeller 11, made of reinforced nylon material, is lightweight, wear-resistant, and impact-resistant. Driven by the airflow, it drives the ABS engineering plastic feeder 5 to rotate, so that the feed is evenly distributed from the discharge hole 13, expanding the feed coverage area, improving uniformity, and facilitating even feeding of crayfish, thereby improving the breeding effect.
[0021] In this utility model, the dispensing distributor 5 has multiple discharge holes 13 equidistantly spaced along its axis, and a snap-fit connecting ring 10 is provided on the inner wall of the top of the connecting pipe. The outer wall of the dispensing distributor 5 has an arc-shaped groove corresponding to the snap-fit connecting ring 10. The snap-fit connecting ring 10 and the arc-shaped groove are made of high-strength engineering plastic and ABS engineering plastic respectively, ensuring a stable and durable connection. The two work together to achieve quick installation and removal of the dispensing distributor 5, facilitating the replacement of the distributor and adjustment of the discharge holes 13 according to actual conditions, flexibly changing the dispensing range and dispersion degree, and improving the applicability and flexibility of the equipment. An installation table is fixedly connected to the middle of the outer wall of the connecting pipe, and a floating platform 15 is fixedly connected to the bottom end of the installation table. Multiple supporting floats 12 are fixedly installed on the periphery of the bottom surface of the floating platform 15. Polyethylene foam... The foamed plastic floating platform 15 and supporting float 12 have low density, high buoyancy, and good water resistance. Combined with the aluminum alloy mounting table, they ensure the feed dispenser floats stably on the water surface, maintaining its position even during water fluctuations. This ensures accurate feed delivery, improves feeding accuracy, and enhances equipment reliability. The feed dispenser 5 has an inverted frustum cross-section with a chamfered edge at the top, and the discharge port 13 is located on the chamfered surface. The ABS engineering plastic feed dispenser 5, with its inverted frustum shape and chamfered design, prevents feed accumulation at the top. Combined with its rotating action, this allows feed to flow more smoothly from the discharge port 13, further improving the uniformity and smoothness of the feed distribution, ensuring feeding effectiveness, and reducing feed waste.
[0022] Working Principle: When using this invention, before using the feed dispenser, first open the cover plate 8 on the top surface of the feed hopper 2 and add the feed into the feed box 1. After starting the feed dispenser, the first motor 6 of the dispersing component drives the crushing and stirring rod 9 to rotate at high speed in the feed hopper 2, so that the feed falling from the feed box 1 through the feed hopper 2 is strongly stirred and crushed, and becomes loose. Then, the pneumatic feeder 3 starts, and the strong airflow generated by its output shaft enters the connected flange pipe through the air delivery pipe 7. Under the push of the high-pressure airflow, the dispersed feed is quickly conveyed along the conveying pipe 4, avoiding jamming and uneven conveying, and ensuring high conveying efficiency. After the feed reaches the spreading component through the conveying pipe 4, it enters the connecting pipe. The feed drives the impeller 11 to rotate, which in turn drives the connecting shaft 14 and the feed distributor 5 to rotate synchronously. Under the combined action of centrifugal force and airflow, the multiple discharge holes 13 on the feed distributor 5 disperse the feed evenly in a fan shape, achieving full coverage of the breeding area. The feed distributor 5 and the snap-fit connecting ring 10 on the inner wall of the top of the connecting pipe are matched by an arc-shaped groove, which can be quickly replaced as needed, flexibly adjusting the feeding range and dispersion. During the entire feeding process, the mounting table, floating platform 15 and supporting float 12 in the middle of the outer wall of the connecting pipe work together to make the feeder float stably on the water surface. Even if the water surface fluctuates, it can remain stable and ensure accurate feed delivery. At this point, the device is in use.
[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A rice shrimp feed dispenser for precision feeding, comprising a feed tank (1), characterized in that: The bottom surface of the material box (1) is provided with a lower hopper (2), the top surface of the lower hopper (2) is hingedly provided with a cover plate (8), the bottom end of the lower hopper (2) is symmetrically provided with two flange pipes, the bottom surface of the material box (1) is provided with four supporting legs, the middle part of the four supporting legs is fixedly provided with a mounting platform, the mounting platform is provided with a scattering assembly, one side of the bottom end of the four supporting legs is provided with a pneumatic feeder (3), the output shaft of the pneumatic feeder (3) is connected with one of the two flange pipes through a gas conveying pipe (7), the other flange pipe is provided with a conveying pipe (4), and the end of the conveying pipe (4) is provided with a scattering assembly.
2. The precision feeding device according to claim 1, wherein: The scattering assembly comprises a first motor (6), and the first motor (6) is coaxially fixed with a broken stirring rod (9) rotatingly arranged in the lower hopper (2).
3. The precision feeding device according to claim 2, characterized in that: The scattering assembly comprises a connecting pipe, the top end of the connecting pipe is provided with a throwing distributor (5), the axis of the throwing distributor (5) is fixedly provided with a connecting shaft (14), the bottom end of the connecting shaft (14) is rotatably inserted into a rotating clamping table fixed in the connecting pipe, a plurality of mounting rings are equidistantly arranged on the connecting shaft (14), and one of the plurality of mounting rings is provided with an impeller (11).
4. The precision feeding device according to claim 3, wherein: A plurality of discharge holes (13) are equidistantly arranged on the throwing distributor (5) along the axis, the top end of the connecting pipe is provided with a buckle connecting ring (10), and the outer wall of the throwing distributor (5) is provided with an arc-shaped clamping groove corresponding to the buckle connecting ring (10).
5. The precision feeding device according to claim 4, characterized in that: The outer wall of the connecting pipe is fixedly provided with a mounting table, the bottom end of the mounting table is fixedly provided with a floating platform (15), and the bottom surface of the floating platform (15) is fixedly provided with a plurality of supporting floats (12).
6. The precision feeding device according to claim 5, characterized in that: The cross section of the throwing distributor (5) is in the shape of an inverted truncated cone, the top end of the throwing distributor (5) is provided with a chamfer, and the discharge port of the discharge hole (13) is located on the chamfer surface.