Feeding device for fish culture

Abstract

The invention discloses a feeding device for fish culture, and relates to the technical field of fish culture feeding, the feeding device comprises a supporting plate, one side of the supporting plate is slidably connected with an extension plate, the upper end of the extension plate is fixedly connected with a supporting frame, and the supporting frame is fixedly connected with a storage barrel in a penetrating mode. Harmful substances generated by decomposition of the feed after long-time soaking in water are reduced, the water quality is kept clean and stable, a healthier and more suitable living environment is provided for fishes, fish diseases and death risks caused by water quality pollution are reduced, and the survival rate of the fishes is increased. Moreover, the fishes in the whole culture area can uniformly obtain food due to dispersive feeding of the feed, and the conditions that fish schools are crowded and peripheral fish schools cannot eat the feed due to concentrated feeding of the feed are avoided, so that the fishes close to or far away from a feeding point can obtain sufficient nutrition, balanced growth of the fishes is promoted, and the yield of the fishes is increased. The overall quality of fishes and the culture economic benefits are improved.

Description

Technical Field

[0001] The invention relates to the technical field of fish farming and feeding, in particular to a feeding device used for fish farming. Background Art

[0002] Fish feeding devices play a crucial role in aquaculture. Their performance and efficiency are directly related to the growth rate and health of fish, as well as the economic benefits of the entire aquaculture activity. The core function of these devices is to achieve accurate and quantitative delivery of fish feed to every corner of the aquaculture waters, thereby ensuring that fish can obtain sufficient nutrition in a balanced manner and promote their healthy and rapid growth.

[0003] When the fish farming feeding device puts fish feed at a designated location, it will cause the fish feed to be concentrated. The excess feed will easily decompose after being soaked in water for a long time, producing harmful substances such as ammonia nitrogen and nitrite. These substances will not only pollute the water quality and affect the living environment of fish, but also cause fish to become sick or even die in the long run, seriously affecting the breeding efficiency. In addition, the concentrated feed delivery will also cause uneven growth of fish. Fish close to the delivery point will grow rapidly due to obtaining more feed, while fish far away from the delivery point will grow slowly due to insufficient feed, affecting the overall quality of the fish and reducing the economic benefits of breeding.

[0004] Therefore, the present invention proposes a feeding device for fish farming to solve the above problems. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the prior art, the present invention provides a feeding device for fish farming, which can effectively solve the problem of centralized feeding of fish feed in the prior art.

[0007] (2) Technical solution

[0008] To achieve the above object, the object of the present invention can be achieved through the following technical solutions:

[0009] A feeding device for fish farming, comprising a support plate, an extension plate being slidably connected to one side of the support plate, a support frame being fixedly connected to the upper end of the extension plate, a storage barrel being fixedly connected through the support frame, a cam-shaped groove being provided on the upper end surface of the extension plate, a feed dispersing and feeding mechanism being provided on the extension plate, the feed dispersing and feeding mechanism comprising a drive shaft, the drive shaft being rotatably connected to the upper end surface of the extension plate, a drive motor being fixedly connected to the drive shaft, the feed dispersing and feeding mechanism being used for dispersing fish feed around the extension plate, a feed arch prevention mechanism being provided between the drive shaft and the storage barrel, the feed arch prevention mechanism being used for moving the feed stored inside the storage barrel during the feed feeding process.

[0010] As a further solution of the present invention: a connecting plate is sleeved on the outer surface of the drive shaft, a feeding frame is fixedly connected to the side of the connecting plate away from the drive shaft, a plurality of leakage holes are opened in the bottom of the feeding frame, a material blocking plate is symmetrically slidably connected to the lower end surface of the feeding frame, and the feeding frame is initially located directly below the storage barrel.

[0011] As a further solution of the present invention: a through groove is provided on the connecting plate, a moving block is slidably connected in the through groove, the moving block is fixedly connected to the moving plate on the side close to the feeding frame, the lower end surface of the moving plate is symmetrically connected to the push plate for rotation, and the push plate is rotatably connected to the lower end surfaces of the two material baffle plates at one end away from the moving plate.

[0012] As a further solution of the present invention: a sliding column is slidably connected through the lower end surface of the moving block, and the sliding column is slidably connected in the cam-shaped groove.

[0013] As a further solution of the present invention: vertical grooves are symmetrically provided on the outer surface of the drive shaft, sliders are slidably connected in the vertical grooves, and the sliders are fixedly connected in the connecting plate.

[0014] As a further solution of the present invention: a circular ring is provided under the connecting plate, the circular ring is sleeved on the driving shaft, the circular ring is fixedly connected to the upper end face of the extension plate, a corrugated groove is provided on the upper end face of the circular ring, and linkage columns are symmetrically slidably connected in the corrugated groove, the upper end faces of the linkage columns are fixedly connected to connecting blocks, and the connecting blocks are fixedly connected to the side walls of the connecting plate.

[0015] As a further solution of the present invention: the anti-feed arching mechanism includes a stirring shaft, which is rotatably connected to the storage barrel, and a plurality of feed-moving rods are fixedly connected to the outer surface of the stirring shaft, and the feed-moving rods are all located in the storage barrel.

[0016] As a further solution of the present invention: the upper end of the stirring shaft is fixedly connected to a main pulley, the outer surface of the main pulley is provided with a belt, the inside of the belt is transmission-connected to a driven pulley on the side away from the main pulley, and the driven pulley is fixedly connected to the drive shaft.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a feeding device for fish farming, which has the following beneficial effects:

[0019] 1. Through the set feed dispersion feeding mechanism, the feed can be dispersed around the feeding point during the feeding process, which not only effectively avoids excessive concentration of feed in a certain area, reduces the harmful substances produced by the decomposition of feed after long-term immersion in water, maintains the cleanliness and stability of water quality, provides a healthier and more suitable living environment for fish, and reduces the risk of fish disease and death caused by water pollution, but also disperses the feed so that fish in the entire breeding area can obtain food more evenly, avoiding the situation where fish are crowded due to concentrated feed delivery and peripheral fish cannot eat feed. Therefore, fish near or far from the delivery point can obtain sufficient nutrition, promote their balanced growth, improve the overall quality of fish and the economic benefits of breeding.

[0020] 2. Through the cam-shaped groove and sliding column, the baffle plate below can be automatically opened and closed according to the movement of the feeding frame towards or away from the storage barrel, thus eliminating the need for manual intervention. The movement of the feeding frame can trigger the automatic opening and closing of the baffle plate, realizing the automated control of the feeding process, reducing the labor intensity of the farmers and improving the feeding efficiency.

[0021] 3. The circular ring, corrugated groove and linkage column can drive the connecting plate and the feeding frame to shake back and forth when the connecting plate drives the feeding frame to rotate and move for feeding, thereby avoiding the situation where the feed accumulates in the feeding frame and cannot fall off. It not only ensures that the feed can be smoothly spread into the breeding area, reduces the residual feed in the feeding frame, and improves the uniformity and efficiency of the feeding, but also the shaking action can increase the fluidity of the feed, making the feed more dispersed during the spreading process, further reducing the phenomenon of concentrated feeding, thereby improving the utilization rate of the feed and the breeding effect.

[0022] 4. During the opening and closing process of the baffle, by driving the feeding frame to vibrate up and down, the fluidity of the feed inside the feeding frame can be increased, and the feed can be prevented from accumulating in the leakage holes at the bottom of the feeding frame, which may affect the opening and closing of the baffle. The vibration process can also reduce the obstruction or friction encountered by the baffle during the rotation opening and closing process, making the opening and closing of the baffle smoother.

[0023] 5. The anti-arching mechanism can simultaneously drive the feed lever to rotate inside the storage barrel while driving the feeding frame to move and spread the feed, thereby moving the feed inside the storage barrel and preventing the feed from arching inside the storage barrel. This not only accelerates the flow rate of the feed in the storage barrel, allowing the feed to reach the feeding frame faster, ensuring that the feed can flow out of the storage barrel smoothly and avoid blockage problems, but also reduces the squeezing time of the feed in the storage barrel, preventing the feed from deteriorating or producing harmful substances due to long-term squeezing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure of area A in the middle;

[0027] Figure 3 For the present invention Figure 1 Schematic diagram of the enlarged structure of the middle B area;

[0028] Figure 4 This is a schematic diagram of the connection structure between the drive shaft and the feeding frame of the present invention;

[0029] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure of the middle C area;

[0030] Figure 6 This is a schematic diagram of the bottom structure of the feeding frame of the present invention;

[0031] Figure 7 This is a schematic diagram of the connection structure between the drive shaft and the connecting plate of the present invention;

[0032] Figure 8 This is a schematic diagram of the connection structure between the stirring shaft and the driving shaft of the present invention.

[0033] In the figure: 1. Support plate; 2. Extension plate; 3. Support frame; 4. Storage barrel;

[0034] 501, drive shaft; 502, connecting plate; 503, feeding frame; 504, ring; 505, corrugated groove; 506, linkage column; 507, connecting block; 508, through groove; 509, moving block; 510, leakage hole; 511, moving plate; 512, sliding column; 513, material blocking plate; 514, push plate; 515, vertical groove; 516, slider;

[0035] 6. Cam-shaped groove;

[0036] 701, stirring shaft; 702, main pulley; 703, belt; 704, driven pulley; 705, material tapping rod. DETAILED DESCRIPTION

[0037] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] A feeding device for fish farming in this embodiment, such as Figure 1 - Figure 8 As shown, it includes a support plate 1, an extension plate 2 is slidably connected to one side of the support plate 1, a support frame 3 is fixedly connected to the upper end of the extension plate 2, a storage bucket 4 is fixedly connected to the support frame 3, a cam-shaped groove 6 is provided on the upper end surface of the extension plate 2, and a feed dispersion feeding mechanism is provided on the extension plate 2. The feed dispersion feeding mechanism includes a drive shaft 501, which is rotatably connected to the upper end surface of the extension plate 2, and a drive motor is fixedly connected to the drive shaft 501. The feed dispersion feeding mechanism is used to disperse fish feed around the extension plate 2.

[0039] In this embodiment, Figure 4 and Figure 6 As shown, a connecting plate 502 is sleeved on the outer surface of the driving shaft 501, and a feeding frame 503 is fixedly connected to the connecting plate 502 on the side away from the driving shaft 501. A plurality of leakage holes 510 are opened in the bottom of the feeding frame 503, and a material blocking plate 513 is symmetrically slidably connected to the lower end surface of the feeding frame 503. In the initial state, the feeding frame 503 is located directly below the storage barrel 4. When the material blocking plates 513 slide away from each other to open the bottom of the feeding frame 503, the feed inside the feeding frame 503 will fall through the leakage holes 510.

[0040] In this embodiment, Figure 6 As shown, a through groove 508 is provided on the connecting plate 502, and a moving block 509 is slidably connected in the through groove 508. The moving block 509 is fixedly connected to a moving plate 511 on the side close to the feeding frame 503. The lower end surface of the moving plate 511 is symmetrically connected to a push plate 514 for rotation. The push plate 514 is rotatably connected to the lower end surfaces of the two baffle plates 513 at one end away from the moving plate 511. When the moving plate 511 slides in the through groove 508, the moving plate 511 and the push plate 514 can push the baffle plates 513 to slide closer or away from each other on the lower end surface of the feeding frame 503.

[0041] In this embodiment, Figure 5 As shown, the lower end surface of the moving block 509 is slidably connected with a sliding column 512, and the sliding column 512 is slidably connected to the cam-shaped groove 6. When the sliding column 512 moves along the path of the cam-shaped groove 6, it can drive the moving block 509 to slide synchronously in the through groove 508.

[0042] In this embodiment, Figure 7 As shown, vertical grooves 515 are symmetrically provided on the outer surface of the drive shaft 501, and sliders 516 are slidably connected in the vertical grooves 515. The sliders 516 are fixedly connected in the connecting plate 502. Through the provided sliders 516 and vertical grooves 515, when the drive shaft 501 drives the connecting plate 502 to rotate, it can slide up and down on the outer surface of the drive shaft 501.

[0043] In this embodiment, Figure 7 As shown, a circular ring 504 is provided below the connecting plate 502, and the circular ring 504 is sleeved on the driving shaft 501. The circular ring 504 is fixedly connected to the upper end face of the extension plate 2, and a corrugated groove 505 is provided on the upper end face of the circular ring 504. The linkage columns 506 are symmetrically slidably connected in the corrugated groove 505. The upper end faces of the linkage columns 506 are fixedly connected with connecting blocks 507, and the connecting blocks 507 are fixedly connected to the side walls of the connecting plate 502. When the connecting plate 502 rotates following the driving shaft 501, the linkage columns 506 will be driven by the connecting blocks 507 to slide along the path of the corrugated groove 505 provided on the upper end face of the circular ring 504, so that the connecting plate 502 moves up and down synchronously during the rotation process.

[0044] In the prior art, when the fish farming feeding device puts the fish feed at a designated location, it will cause the fish feed to be concentrated. The excess feed will easily decompose after being soaked in water for a long time, and produce harmful substances such as ammonia nitrogen and nitrite. These substances will not only pollute the water quality and affect the living environment of the fish, but also cause the fish to become sick or even die in the long run, seriously affecting the breeding efficiency. In addition, the concentrated feeding of feed will also cause the growth of fish to be uneven. The fish near the feeding point will grow rapidly because they get more feed, while the fish far away from the feeding point will grow slowly due to insufficient feed, affecting the overall quality of the fish and reducing the economic efficiency of breeding. Compared with the prior art, it can be used in the feeding process , dispersing the feed around the feeding point not only effectively avoids excessive concentration of feed in a certain area, reduces the harmful substances produced by the decomposition of feed after being immersed in water for a long time, maintains the cleanliness and stability of water quality, provides a healthier and more suitable living environment for fish, and reduces the risk of fish disease and death due to water pollution, but also disperses the feed so that fish in the entire breeding area can obtain food more evenly, avoiding the situation where fish are crowded due to concentrated feed release and the peripheral fish cannot eat feed. Therefore, whether the fish are close to or far away from the feeding point, they can obtain sufficient nutrition, promote their balanced growth, and improve the overall quality of the fish and the economic benefits of breeding.

[0045] In other aspects, this embodiment also provides a feed arch prevention mechanism for moving the feed stored in the storage bucket 4 during the feeding process, such as Figure 1 、 Figure 3 and Figure 8 As shown, the anti-feed arching mechanism includes a stirring shaft 701, which is rotatably connected to the storage barrel 4. A plurality of feed shifting rods 705 are fixedly connected to the outer surface of the stirring shaft 701, and the feed shifting rods 705 are all located in the storage barrel 4.

[0046] In this embodiment, Figure 8As shown, the upper end of the stirring shaft 701 is fixedly connected to a main pulley 702, and a belt 703 is provided on the outer surface of the main pulley 702. The inside of the belt 703 is connected to a driven pulley 704 on the side away from the main pulley 702. The driven pulley 704 is fixedly connected to the drive shaft 501. When the drive shaft 501 rotates, the driven pulley 704, the belt 703 and the main pulley 702 can drive the stirring shaft 701 to rotate synchronously, thereby improving energy utilization.

[0047] Compared to the prior art method of using an additional drive source to drive the feed lever 705 to rotate independently, the present invention can simultaneously drive the feed lever 705 to rotate inside the storage barrel 4 while driving the feeding frame 503 to move and spread the feed, thereby moving the feed inside the storage barrel 4 and preventing the feed from accumulating inside the storage barrel 4. This not only accelerates the flow rate of the feed in the storage barrel 4, allowing the feed to reach the feeding frame 503 more quickly, ensuring that the feed can flow smoothly from the storage barrel 4 and avoid clogging, but also reduces the squeezing time of the feed in the storage barrel 4, preventing the feed from deteriorating or producing harmful substances due to prolonged squeezing. Furthermore, the rotation of the feed lever 705 can be automatically stopped after feeding is completed, eliminating the need for additional operator control. This allows the work processes of moving the feed inside the storage barrel 4 and feeding the feed to be combined, simplifying the workflow and reducing the complexity and difficulty of the fish feed feeding process.

[0048] The working process and principles involved in the overall content of the above embodiment are as follows:

[0049] When the staff needs to feed the fish breeding area, they first drive the extension plate 2 to slide on the support plate 1, drive the storage bucket 4 and the feeding frame 503 to move to the feeding area, and then use the existing quantitative feeding technology to drop the fish feed into the feeding frame 503. After the fish feed falls into the feeding frame 503, the staff can turn on the drive motor to drive the drive shaft 501 to rotate above the extension plate 2, and through the limit of the vertical slot 515 and the slider 516, toggle the connecting plate 502 to drive the feeding frame 503 to move synchronously with the drive shaft 501 as the center of the circle. During the movement of plate 502, the through groove 508 opened on the connecting plate 502 can be used to toggle the moving block 509 to drive the sliding column 512 to slide along the path of the cam-shaped groove 6. When the linkage column 506 slides from the protrusion of the cam-shaped groove 6 into the position close to the drive shaft 501, it will drive the moving block 509 to slide synchronously in the through groove 508 toward the drive shaft 501. As the moving block 509 moves, the moving plate 511 connected to the side wall of the moving block 509 can be pulled to move synchronously. Since the lower end surface of the moving plate 511 is symmetrically connected to the rotation The push plate 514, one end of the push plate 514 away from the moving plate 511, is rotatably connected to the baffle plate 513. Therefore, during the movement of the moving plate 511, one end of the push plate 514 can be pulled to move synchronously, thereby changing the tilt angle of the push plate 514 and pushing the two baffle plates 513 to slide away from each other under the feeding frame 503, so that the fish feed inside the feeding frame 503 falls into the breeding area through the leakage hole 510 opened at the bottom of the inner bottom, and disperses and falls as the feeding frame 503 moves, which not only effectively avoids excessive concentration of feed in a certain area, but also reduces the amount of feed in the water. The harmful substances produced by long-term immersion are decomposed, maintaining the cleanliness and stability of water quality, providing a healthier and more suitable living environment for fish, reducing the risk of fish disease and death caused by water pollution, and the dispersed release of feed allows fish in the entire breeding area to obtain food more evenly, avoiding the situation where fish schools are crowded due to concentrated feed release and peripheral fish schools cannot eat feed. Therefore, fish near or far from the release point can obtain sufficient nutrition, promote their balanced growth, improve the overall quality of fish and the economic benefits of breeding;

[0050] Secondly, in the prior art, some feeding devices use a throwing method to disperse the feed during the throwing process and drop it into the breeding area. When the feed is directly thrown, especially when it is thrown in large quantities or at high speed, it will produce a large noise and water surface fluctuations, which will scare the fish and cause them to have a stress response, affecting their normal feeding and growth. Compared with the prior art, the feed is shaken off by the feeding frame 503, which can reduce the vibration of the feed when it falls into the water surface and the vibration and noise generated by the water surface when the feed enters the breeding area, allowing the fish to feed more calmly.

[0051] In the process of the connecting plate 502 driving the feeding frame 503 to move, the connecting plate 502 can drive the linkage column 506 to move in contact with the upper end surface of the ring 504 through the connecting blocks 507 connected on both sides. Since the upper end surface of the ring 504 is provided with a corrugated groove 505, the linkage column 506 will be affected by the corrugated groove 505 during its movement, and the connecting block 507 will push the connecting plate 502 upward to drive the slider 516 to slide in the vertical groove 515 provided on the outer surface of the drive shaft 501. When the linkage column 506 moves to the trough of the corrugated groove 505, the slider 516 will slide in the vertical groove 515 provided on the outer surface of the drive shaft 501. 2. Under the influence of its own gravity, it will automatically fall. Therefore, in the process of connecting and following the rotation of the driving shaft 501, it can move up and down synchronously, driving the feeding frame 503 to shake up and down, thereby avoiding the situation where the feed is accumulated in the feeding frame 503 and cannot fall off. It not only ensures that the feed can be smoothly spread into the breeding area, reduces the feed residue in the feeding frame 503, and improves the uniformity and efficiency of the feeding, but also the shaking action can increase the fluidity of the feed, making the feed more dispersed during the spreading process, further reducing the phenomenon of concentrated feeding, thereby improving the utilization rate of the feed and the breeding effect;

[0052] When the connecting plate 502 rotates and drives the feeding frame 503 close to the storage barrel 4, the sliding post 512 will slide into the protrusion of the cam-shaped groove 6 again, driving the moving block 509 to move away from the driving shaft 501 in the through groove 508, and pull the baffle plates 513 on both sides to slide close to the lower end surface of the feeding frame 503 through the connecting plate 502 and the push plate 514, blocking the lower end of the feeding frame 503, so that the storage barrel 4 can put the fish feed into the feeding frame 503, and automatically open and close the baffle plates 513 below, thereby eliminating the need for manual intervention. The automatic opening and closing of the baffle plates 513 can be triggered by the movement of the feeding frame 503, thereby realizing automatic control of the feeding process, reducing the labor intensity of the farmers, and improving the feeding work efficiency;

[0053] Furthermore, during the opening and closing process of the baffle plate 513, by driving the feeding frame 503 to vibrate back and forth, the fluidity of the feed inside the feeding frame 503 can be increased, thereby preventing the feed from accumulating in the leakage hole 510 opened at the bottom of the feeding frame 503 and causing the feed to affect the opening and closing of the baffle plate 513. In addition, the vibration process can reduce the obstruction or friction encountered by the baffle plate 513 during the rotation opening and closing process, making the opening and closing of the baffle plate 513 smoother.

[0054] When the driving shaft 501 rotates to drive the feeding frame 503 to spread the material evenly, it will drive the driven pulley 704 connected to the upper end to rotate synchronously. Since the outer surface of the driven pulley 704 is covered with a belt 703, and the belt 703 is covered on the main pulley 702, during the rotation of the driven pulley 704, the provided belt 703 can drive the main pulley 702 to rotate synchronously, so that the stirring shaft 701 connected to the main pulley 702 rotates on the storage barrel 4, driving the material-moving rod 705 connected to the outer surface of the stirring shaft 701 to move the fish feed in the storage barrel 4, avoiding the arching phenomenon of the feed inside the storage barrel 4, which can not only accelerate the flow speed of the feed in the storage barrel 4, but also make the feed reach the feeding frame 503 faster, ensure that the feed can flow out of the storage barrel 4 smoothly, avoid the occurrence of blockage problems, and reduce the squeezing time of the feed in the storage barrel 4, preventing the feed from being squeezing for a long time from deteriorating or producing harmful substances.

[0055] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A feeding device for fish farming, comprising a support plate (1), one side of the support plate (1) is slidably connected to an extension plate (2), the upper end of the extension plate (2) is fixedly connected to a support frame (3), and a storage bucket (4) is fixedly connected to the support frame (3), characterized in that: The upper end surface of the extension plate (2) is provided with a cam-shaped groove (6); The extension plate (2) is provided with a feed dispersing feeding mechanism, the feed dispersing feeding mechanism comprising a drive shaft (501), the drive shaft (501) being rotatably connected to the upper end surface of the extension plate (2), the drive shaft (501) being fixedly connected to a drive motor, and the feed dispersing feeding mechanism being used to disperse fish feed around the extension plate (2); A feed arch prevention mechanism is provided between the drive shaft (501) and the storage barrel (4), and the feed arch prevention mechanism is used to move the feed stored inside the storage barrel (4) during the process of feeding.

2. A feeding device for fish farming according to claim 1, characterized in that: The outer surface of the driving shaft (501) is sleeved with a connecting plate (502), and a feeding frame (503) is fixedly connected to the side of the connecting plate (502) away from the driving shaft (501). A plurality of leakage holes (510) are opened on the bottom of the feeding frame (503), and a material blocking plate (513) is symmetrically slidably connected to the lower end surface of the feeding frame (503). In an initial state, the feeding frame (503) is located directly below the storage barrel (4).

3. A feeding device for fish farming according to claim 2, characterized in that: A through groove (508) is provided on the connecting plate (502), and a moving block (509) is slidably connected in the through groove (508). The moving block (509) is fixedly connected to a moving plate (511) on one side close to the feeding frame (503). The lower end surface of the moving plate (511) is symmetrically connected to a push plate (514). The push plate (514) is rotatably connected to the lower end surfaces of the two material blocking plates (513) at one end away from the moving plate (511).

4. A feeding device for fish farming according to claim 3, characterized in that: The lower end surface of the moving block (509) is slidably connected to a sliding column (512), and the sliding column (512) is slidably connected to the cam-shaped groove (6).

5. A feeding device for fish farming according to claim 2, characterized in that: The outer surface of the driving shaft (501) is symmetrically provided with vertical grooves (515), and the vertical grooves (515) are slidably connected with sliders (516), and the sliders (516) are fixedly connected to the connecting plate (502).

6. A feeding device for fish farming according to claim 5, characterized in that: A circular ring (504) is provided below the connecting plate (502), the circular ring (504) being sleeved on the driving shaft (501), the circular ring (504) being fixedly connected to the upper end surface of the extension plate (2), the upper end surface of the circular ring (504) being provided with a corrugated groove (505), the inner surface of the corrugated groove (505) being symmetrically slidably connected with a linkage column (506), the upper end surfaces of the linkage columns (506) being fixedly connected with a connection block (507), and the connection block (507) being fixedly connected to the side wall of the connecting plate (502).

7. A feeding device for fish farming according to claim 1, characterized in that: The feed arch prevention mechanism comprises a stirring shaft (701), the stirring shaft (701) is rotatably connected to the material storage barrel (4), and a plurality of material shifting rods (705) are fixedly connected to the outer surface of the stirring shaft (701), and the material shifting rods (705) are all located in the material storage barrel (4).

8. A feeding device for fish farming according to claim 7, characterized in that: The upper end of the stirring shaft (701) is fixedly connected to a main pulley (702), the outer surface of the main pulley (702) is provided with a belt (703), the inner side of the belt (703) away from the main pulley (702) is transmission-connected to a driven pulley (704), and the driven pulley (704) is fixedly connected to the driving shaft (501).

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