Automatic feeding equipment for aquaculture industry
By designing the collection mechanism and return pipe, the problem of feed settling to the bottom in automatic feeding equipment was solved, thereby improving feed utilization and the oxygen content at the bottom of the water.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-03-13
AI Technical Summary
Existing automatic feeding equipment often results in feed sinking to the bottom during aquaculture in the sea or lakes, leading to waste and failing to effectively prevent the problem of feed sinking.
An automatic feeding device was designed, comprising a feed box, an air bladder, a feeding mechanism, and a collecting mechanism. The collecting mechanism consists of a flange pipe, a connecting rod, a shaping ring, and a collecting membrane. The collecting membrane is made of flexible material and, combined with a servo motor and an axial flow pump impeller, increases feed buoyancy and bottom oxygen content through the collecting membrane and return pipe.
It effectively prevents feed from sinking to the bottom, improves feed utilization, increases oxygen content at the bottom of the water, and promotes fish feeding.
Smart Images

Figure CN223987557U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquaculture technology, and in particular to an automatic feeding device for aquaculture. Background Technology
[0002] Aquaculture is one of the fastest-growing sectors in agriculture, making significant contributions to ensuring market supply, increasing farmers' income, enhancing export competitiveness, optimizing the national dietary structure, and ensuring food security. Manual feeding methods have significant drawbacks. Therefore, in the development of aquaculture, aquaculture equipment has made a huge contribution to the increase in aquaculture output, enabling large-scale, high-yield distributed pond aquaculture production and ensuring high yields and high efficiency in aquaculture production. While automatic feeding equipment is used, existing equipment directly throws feed into the water, causing uneaten feed to sink to the bottom. This is not a major concern in ordinary pond aquaculture, but in marine and lake aquaculture using net cages, the sinking of feed leads to waste. Therefore, an automatic feeding device for aquaculture is proposed. Utility Model Content
[0003] To address at least one of the aforementioned technical shortcomings, this utility model provides an automatic feeding device for aquaculture, comprising a feed box, an air bladder, and a feeding mechanism. The feed box is fixed to the air bladder, the feeding mechanism is fixed to the middle of the feed box, and a collection mechanism to prevent feed from sinking is fixedly connected to the bottom of the feeding mechanism.
[0004] Furthermore, the material collection mechanism includes a flange pipe fixedly connected to the feeding mechanism. At least two inclined outwardly extending connecting rods are evenly provided on the outer wall of the flange pipe. The bottom end of the connecting rod is fixedly connected to a shaping ring. A pot-shaped material collection membrane is fixedly connected to the middle of the shaping ring. The material collection membrane is made of flexible material.
[0005] Furthermore, the feeding mechanism includes a feeding pipe, and a servo motor located in the middle of the feed box is fixedly connected to the top of the feeding pipe. The output shaft of the servo motor passes through the top of the feeding pipe and is integrally connected to a drive shaft. A discharge baffle is provided on the drive shaft, which is flush with the discharge port of the feed box.
[0006] Furthermore, the bottom end of the drive shaft is equipped with an axial flow pump impeller for pumping water downwards, and a return pipe is provided on the outer wall of the feed pipe.
[0007] Furthermore, the return pipe is an arc-shaped pipe, with an oxygen inlet pipe protruding above the water surface in the middle of the return pipe.
[0008] Furthermore, a protective net is installed at the outer end of the return pipe.
[0009] Furthermore, a protective net is installed at the bottom of the flange pipe. Beneficial effects
[0010] The feeding mechanism can effectively prevent feed from settling to the bottom.
[0011] After the feed is fed into the flange tube from the feeding mechanism, the feed falls down from inside the flange tube and onto the surface of the collection membrane. This prevents the feed from falling onto the silt surface before being eaten by the fish. The collection membrane is designed in a pot shape, so that the falling feed is concentrated in the middle of the surface of the collection membrane. The collection membrane is made of flexible material, which makes the collection membrane press down into a pot shape. When the fish swim near the collection membrane, the water will fluctuate, causing the collection membrane to fluctuate, so that the feed can float up a little and then sink, making it easier for the fish to eat.
[0012] When the impeller of the axial flow pump rotates, the water flows from the return pipe into the inside of the feed pipe, and then flows to the flange pipe. Inside the feed pipe, the feed can be broken up and mixed.
[0013] When water flows inside the return pipe, the oxygen inlet pipe will draw in oxygen-containing air, increasing the oxygen content of the water inside the return pipe. Then, it will be sent into the flange pipe through the feed pipe, and then into the bottom of the water through the flange pipe, which can increase the oxygen content at the bottom of the water.
[0014] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Attached Figure Description
[0015] Figure 1 This is an isometric view of the entire utility model.
[0016] Figure 2 This is an isometric view of the feeding tube of this utility model.
[0017] Figure 3 This is an isometric view of the material collection mechanism of this utility model.
[0018] Figure 4 This is a cross-sectional view of the feeding mechanism of this utility model.
[0019] Figure 5 This is an isometric view of the material feed baffle of this utility model.
[0020] exist Figures 1 to 5 The correspondence between the component names or lines and the attached drawing numbers is as follows: Feed box 1, discharge port 101, air bag 2, feeding mechanism 3, feeding pipe 301, return pipe 302, oxygen inlet pipe 303, servo motor 304, drive shaft 305, discharge baffle 306, axial flow pump impeller 307, material collection mechanism 4, flange pipe 401, connecting rod 402, shaping ring 403, material collection membrane 404. Detailed Implementation
[0021] Please refer to Figures 1 to 5 ;
[0022] This embodiment provides an automatic feeding device for aquaculture, referencing... Figure 1 It includes a feed box 1, an air bladder 2, and a feeding mechanism 3. The feed box 1 is fixed on the air bladder 2, and the feeding mechanism 3 is fixed in the middle of the feed box 1. The bottom end of the feeding mechanism 3 is fixedly connected to a collection mechanism 4 to prevent the feed from sinking to the bottom.
[0023] In practice, the feeding mechanism 4 can effectively prevent feed from settling to the bottom.
[0024] Further reference Figure 2 The material collection mechanism 4 includes a flange pipe 401 fixedly connected to the feeding mechanism 3. At least two inclined outwardly extending connecting rods 402 are evenly provided on the outer wall of the flange pipe 401. The bottom end of the connecting rod 402 is fixedly connected to a shaping ring 403. A pot-shaped material collection membrane 404 is fixedly connected to the middle part of the shaping ring 403. The material collection membrane 404 is made of flexible material.
[0025] In practice, after the feed is fed from the feeding mechanism 3 into the flange pipe 401, the feed falls from the flange pipe 401 and onto the surface of the collection membrane 404. This prevents the feed from falling onto the silt surface before being eaten by the fish. The collection membrane 404 is set in a pot shape, so that the falling feed will be concentrated in the middle of the surface of the collection membrane 404. The collection membrane 404 is made of flexible material, so that the collection membrane 404 is pressed into a pot shape. When the fish swim near the collection membrane 404, the water will fluctuate, causing the collection membrane 404 to fluctuate, so that the feed can float up a little and then sink, making it easier for the fish to eat.
[0026] The aggregate membrane 404 is made of flexible material.
[0027] The flexible material can be any of the existing flexible materials.
[0028] Further reference Figures 3 to 5 The feeding mechanism 3 includes a feeding pipe 301. A servo motor 304 located in the middle of the feed box 1 is fixedly connected to the top of the feeding pipe 301. The output shaft of the servo motor 304 passes through the top of the feeding pipe 301 and is integrally connected to a transmission shaft 305. A feeding baffle 306 is provided on the transmission shaft 305, which is flush with the discharge port 101 of the feed box 1.
[0029] In practical implementation, when feeding, the servo motor 304 starts to rotate, causing the feeding baffle 306 to rotate. When the feeding baffle 306 is misaligned with the discharge port 101, the feed inside the feed box 1 is discharged from the discharge port 101 into the feed pipe 301. When the feeding baffle 306 coincides with the discharge port 101, the feed cannot be discharged from the discharge port 101. When the servo motor 304 stops rotating, the feeding baffle 306 coincides with the discharge port 101 (achieved by setting the number of rotations of the servo motor 304, using existing technology).
[0030] Furthermore, the bottom end of the drive shaft 305 is provided with an axial flow pump impeller 307 for pumping water downwards, and a return pipe 302 is provided on the outer wall of the feed pipe 301.
[0031] In practical implementation, when the axial flow pump impeller 307 rotates, the water flow will flow from the return pipe 302 into the inside of the feeding pipe 301, and then flow to the flange pipe 401. Inside the feeding pipe 301, the feed can be broken up and mixed.
[0032] Furthermore, the return pipe 302 is an arc-shaped pipe, and an oxygen inlet pipe 303 protruding above the water surface is provided in the middle of the return pipe 302.
[0033] In practice, when there is water flowing inside the return pipe 302, the oxygen inlet pipe 303 will draw in oxygen-containing air to increase the oxygen content of the water inside the return pipe 302. Then, it will be sent into the flange pipe 401 through the feed pipe 301 and then into the bottom of the water through the flange pipe 401, which can increase the oxygen content of the bottom of the water.
[0034] Furthermore, a protective net is provided at the outer end of the return pipe 302.
[0035] In practice, prevent fish from entering the return pipe 302.
[0036] Furthermore, a protective net is provided at the bottom of flange pipe 401.
[0037] In practice, prevent fish from entering flange pipe 401.
Claims
1. An automatic feeding device for aquaculture, comprising a feed tank (1), an air bag (2) and a feeding mechanism (3), characterized in that: The feed box (1) is fixed on the air bag (2), the feeding mechanism (3) is fixed in the middle part of the feed box (1), and the bottom end of the feeding mechanism (3) is fixedly connected with the material collecting mechanism (4) for preventing feed from sinking to the bottom.
2. An automatic feeding apparatus for aquaculture according to claim 1, characterized in that: The material collecting mechanism (4) comprises a flange pipe (401) fixedly connected with the feeding mechanism (3), the outer wall of the flange pipe (401) is uniformly provided with at least two inclined and outwardly expanding connecting rods (402), the bottom end of the connecting rod (402) is fixedly connected with a shaping ring (403), the middle part of the shaping ring (403) is fixedly connected with a kettle-shaped material collecting film (404), and the material collecting film (404) is made of flexible material.
3. An automatic feeding apparatus for an aquaculture industry according to claim 2, characterized in that: The feeding mechanism (3) comprises a feeding pipe (301), the top of the feeding pipe (301) is fixedly connected with a servo motor (304) located in the middle part of the feed box (1), the output shaft of the servo motor (304) penetrates through the top of the feeding pipe (301) and is integrally connected with a transmission shaft (305), and the upper part of the transmission shaft (305) is provided with a discharging baffle (306) flush with the discharge port (101) of the feed box (1).
4. An automatic feeding apparatus for an aquaculture industry according to claim 3, characterized in that: The bottom end of the transmission shaft (305) is provided with an axial flow pump impeller (307) for pumping water downward, and the outer wall of the feeding pipe (301) is provided with a return pipe (302).
5. An automatic feeding apparatus for an aquaculture industry according to claim 4, characterized in that: The return pipe (302) is an arc-shaped pipe, and the middle part of the return pipe (302) is provided with an oxygen inlet pipe (303) exposed to the water surface.
6. An automatic feeding apparatus for an aquaculture industry according to claim 5, characterized in that: The outer end of the return pipe (302) is provided with a protective net.
7. An automatic feeding apparatus for an aquaculture industry according to claim 6, characterized in that: The bottom of the flange pipe (401) is provided with a protective net.