Marine aquaculture feeding device

Abstract

The present invention discloses a feeding device for marine aquaculture, belonging to the field of marine aquaculture. The feeding device comprises a floating plate, buoys are fixedly mounted at the four corners of the bottom of the floating plate, a feed box is fixedly mounted on the floating plate, a feeding tube connected to the feed box is provided at the bottom of the floating plate, a traction assembly is connected between the floating plate and the feeding tube, and the feeding tube also comprises: a feeding hole is opened on one side of the feeding tube, and a feeding assembly is slidably connected in the feeding tube, and the feeding assembly is used to open the feeding holes at different positions according to the feeding depth; a piston assembly is provided in the feeding box; the present invention can feed evenly in sea areas of different depths, and the feeding amount gradually increases according to the depth, ensuring smooth and sufficient feeding; utilizing piston pressure can not only further improve feeding efficiency, but also prevent seawater from reversely osmosis through the feeding tube into the feed box; while avoiding clogging of the feed outlet, it prevents feed from agglomerating, and ensures that the feed box can continuously feed the feeding tube.

Description

Technical Field

[0001] The present invention relates to the technical field of marine aquaculture, in particular to a marine aquaculture feeding device. Background Art

[0002] Marine aquaculture is a production method that utilizes shallow seas, mudflats, harbors, ponds and other sea areas to raise and breed marine economic plants and animals. It is one of the important ways for humans to utilize marine biological resources in a targeted manner and develop marine aquaculture. In order to increase the growth rate of farmed animals and achieve higher economic benefits during marine aquaculture, artificial feeding is usually required. Since the marine aquaculture area is large, in order to improve the feeding efficiency, it is necessary to use a feeding device to feed the feed to improve the feeding efficiency. The marine aquaculture feeding device in the prior art mostly places a feed storage container on the sea surface. When feeding is required, the feed in the storage tank is released into the sea area by opening the feeding port. The existing feeding device is not only not applicable to a wider aquaculture sea area, but the delivery pipes are usually exposed to the outside and are affected by the marine environment. A large amount of moisture is easily retained inside, resulting in subsequent feed sticking to the pipes, affecting the feeding efficiency.

[0003] The Chinese invention patent, with authorization publication number CN118160670B, discloses a feeding device for marine aquaculture, comprising a hull with a base fixedly connected to the middle of the hull, a storage tank disposed at the top of the base, and a plurality of feeding components arranged equidistantly around the storage tank. The feeding components include a feeding tube, a feeding member, and an angle adjustment member. The feeding member is disposed on the base, and one end of the feeding tube is connected to the storage tank through the feeding member for conveying feed. The angle adjustment member is disposed on the storage tank and connected to the feeding tube for adjusting the feeding angle of the feeding tube. The sealing assembly includes a lifting ring, a sealing ring, and a sealing member. The lifting ring is slidably connected to the base via a control member. The sealing ring is fixedly connected to the inner wall of the lifting ring and seals the other end of the feeding tube through the sealing member. This device increases the feeding range, prevents feed from sticking to the feeding tube, and is suitable for marine aquaculture, improving feeding efficiency.

[0004] However, the above device and the existing technology still have the following shortcomings: in order to ensure the feeding depth during the feed feeding process, the feeding tube needs to continue to sink, which may cause the feed to be blocked in the feeding tube during the sinking process, affecting the feeding effect; and the feeding tube enters the seawater, which will flow into the feeding tube, further causing the feed to be thrown poorly. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the prior art that the feeding cylinder needs to sink continuously to ensure the feeding depth, which may cause the feed to be blocked in the discharge pipe during the sinking process, affecting the feeding effect; and the feeding pipe enters the seawater, which will flow into the feeding cylinder, further causing the feed to be thrown poorly.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A marine aquaculture feeding device includes a floating plate, with floats fixedly mounted at the four corners of the bottom of the floating plate, a feed box fixedly mounted on the floating plate, and a feeding cylinder connected to the feed box provided at the bottom of the floating plate, a traction assembly connected between the floating plate and the feeding cylinder, and further includes: a feeding hole is opened on one side of the feeding cylinder, and a feeding assembly is slidably connected in the feeding cylinder, the feeding assembly is used to open the feeding holes at different positions according to the feeding depth; a piston assembly is provided in the feed box, and when the piston assembly moves, the feed is squeezed out and transported into the feeding cylinder.

[0008] Preferably, the traction assembly includes a traction rod rotatably mounted on a floating plate, fixed ear plates are provided at both ends of the traction rod, the fixed ear plates are fixedly connected to the floating plate, one end of the traction rod is transmission-connected to a motor, a traction rope is fixedly wound around the surface of the traction rod, and the traction rope is fixedly connected to the top of the feeding barrel at one end away from the traction rod.

[0009] Preferably, the feeding assembly includes a retaining ring slidably connected to the feeding cylinder, a spring is fixedly connected between two adjacent groups of retaining rings, a connecting plate is provided in the retaining ring, and both ends of the spring are fixedly connected to the two adjacent groups of connecting plates; a floating rod is fixedly connected between the connecting plates, the floating rod passes through the top of the feeding cylinder and extends to the outside of the feeding cylinder, and one end of the floating rod is fixedly connected to a balance rod, and both ends of the balance rod are connected to float balls through a connecting rod.

[0010] Preferably, the piston assembly includes a push plate slidably connected to the feed box, one side of the push plate is fixedly connected to a connecting rod, one end of the connecting rod is slidably connected to the feed box and extends to the outside of the feed box.

[0011] Preferably, a transmission assembly is provided between the connecting rod and the floating rod, and the transmission assembly includes a first rack fixedly connected to one side of the floating rod, a first gear is engaged with one side of the first rack, the first gear is rotatably mounted on the floating plate through a first rotating shaft, a second gear is transmission-connected to one side of the first gear, a second rack is engaged with the top of the second gear, and the second rack is fixedly connected to the bottom of the connecting rod.

[0012] Preferably, the second gear is rotatably mounted on the floating plate via the second rotating shaft, a second synchronous pulley is mounted on the surface of the first rotating shaft, and two sets of the second synchronous pulleys are transmission-connected; fin plates are symmetrically mounted on both sides of the second rack, and two sets of positioning frames are symmetrically arranged on the floating plate and on both sides of the connecting rod, and the fin plates are slidably mounted in the positioning frames.

[0013] Preferably, an air bag is connected between the connecting rod and one side wall of the feed box, exhaust holes are equidistantly provided at the bottom of the air bag, and a one-way valve is installed in the exhaust hole.

[0014] Preferably, the bottom surface of the feed box is provided with an inclined surface, a feed outlet is provided in the inclined surface, the bottom of the feed outlet is connected to a guide hopper, the discharge port of the guide hopper is connected to a feed pipe, a feed port is provided at the top of the feeding cylinder, the feed pipe and the feed port are fixedly connected, and the feed pipe is configured as a steel hose structure.

[0015] Preferably, a stirring assembly is provided in the feed box above the feed discharge port, and the stirring assembly comprises a stirring shaft rotatably mounted in the feed box and a stirring blade fixedly mounted on the surface of the stirring shaft;

[0016] One end of the stirring shaft extends to the outside of the feed box and is fixedly installed with a first synchronous pulley, and one end of the traction rod is also fixedly installed with a first synchronous pulley, and the two groups of the first synchronous pulleys are connected by a transmission belt.

[0017] Preferably, a first through slot is provided in the floating plate at a position where the traction rope passes through, a second through slot is provided in the floating plate at a position where the floating rod passes through, and overflow holes are provided on both sides of the floating plate.

[0018] Compared with the prior art, the present invention provides a marine aquaculture feeding device with the following beneficial effects:

[0019] 1. This marine aquaculture feeding device is equipped with a feeding cylinder and an equidistant array of retaining rings within the cylinder. Initially, the feeding hole is blocked. As the feeding cylinder sinks to a different depth, the buoyancy of the float increases, driving the retaining rings to move and open the feeding hole. This allows for uniform feeding in waters of varying depths, with the feed volume gradually increasing with depth, ensuring smooth and sufficient feed delivery.

[0020] 2. The marine aquaculture feeding device is connected through a transmission component. The float drives the floating rod and the piston device, which acts as a piston in the feed box to squeeze and discharge the feed in the feed box. The use of piston pressure can not only further improve the feeding efficiency, but also prevent seawater from reversely seeping into the feed box through the feeding tube.

[0021] 3. The marine aquaculture feeding device uses a traction rod to drive the stirring shaft located in the feed box to rotate, and uses the stirring blades on the surface of the stirring shaft to stir and disperse the feed in the feed box, avoiding clogging of the feed outlet and preventing the feed from clumping, ensuring that the feed box can continuously feed the feeding cylinder;

[0022] 4. The marine aquaculture feeding device is provided with an air bag. The air bag in the feed box is compressed by the movement of the push plate. The exhaust hole is used to blow air into the feed box. The feed is blown with air, which can prevent the feed from clumping and drive the gas flow in the feed box to remove moisture, ensure the dryness of the feed box, and further improve the feeding efficiency.

[0023] The parts not mentioned in the device are the same as those in the prior art or can be implemented using the prior art. The present invention achieves the effect of uniform feeding in sea areas of different depths, and the feeding amount gradually increases according to the depth, ensuring smooth and sufficient feeding of feed. The use of piston pressure can not only further improve the feeding efficiency, but also prevent seawater from reversely seeping into the feed box through the feeding tube. It also avoids clogging of the feed outlet and prevents feed agglomeration, ensuring that the feed box can continuously feed the feeding tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the transmission assembly of the present invention;

[0027] Figure 4 It is a schematic diagram of the overall bottom-up three-dimensional structure of the present invention;

[0028] Figure 5 for Figure 4 The enlarged structural diagram of part B in the middle;

[0029] Figure 6 This is a schematic diagram of the cross-sectional structure of the feeding tube of the present invention;

[0030] Figure 7 The feed box of the present invention is a partial cross-sectional view of the structure Figure 1 ;

[0031] Figure 8 The feed box of the present invention is a partial cross-sectional view of the structure Figure 2 ;

[0032] Figure 9 The feed box of the present invention is a partial cross-sectional view of the structure Figure 3 ;

[0033] Figure 10 It is a schematic diagram of the main structure of the floating plate and feed box of the present invention.

[0034] Figure: 1, floating plate; 2, feed box; 3, traction rope; 4, feeding tube; 5, balance bar; 6, float; 7, connecting rod; 8, float; 9, traction rod; 10, motor; 11, fixed ear plate; 12, feeding hole; 13, retaining ring; 14, connecting plate; 15, spring; 16, floating rod; 17, first rack; 18, first through slot; 19, first gear; 20, second gear; 21, first rotating shaft; 22 , second rack; 23, connecting rod; 24, positioning frame; 25, second rotating shaft; 26, second through groove; 27, inclined surface; 28, stirring shaft; 29, stirring blade; 30, overflow hole; 31, first synchronous pulley; 32, transmission belt; 33, push plate; 34, wing plate; 35, air bag; 36, exhaust hole; 37, discharge port; 38, guide hopper; 39, conveying pipe; 40, feed port; 41, second synchronous pulley. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Reference Figures 1-10 The marine aquaculture feeding device of the present invention includes a floating plate 1 with overflow holes 30 on both sides. Floats 8 are fixedly installed at the four corners of the bottom of the floating plate 1. A feed box 2 is fixedly installed on the floating plate 1, and a feeding tube 4 connected to the feed box 2 is provided at the bottom of the floating plate 1. A traction assembly is connected between the floating plate 1 and the feeding tube 4. The traction assembly includes a traction rod 9 rotatably mounted on the floating plate 1. Fixed lugs 11 are provided at both ends of the traction rod 9. The fixed lugs 11 are fixedly connected to the floating plate 1. A motor 10 is connected to one end of the traction rod 9 for transmission. A traction rope 3 is fixedly wound around the surface of the traction rod 9. The end of the traction rope 3 away from the traction rod 9 is fixedly connected to the top of the feeding tube 4. A first through groove 18 is provided in the floating plate 1 at the position where the traction rope 3 passes through.

[0037] In this embodiment, buoys 8 are provided at the four corners of the bottom of the floating plate 1, so that the floating plate 1 can carry and the feeding tube 4 can float and move on the sea surface, which is beneficial for feeding work in the marine aquaculture area.

[0038] Specifically, when the float 1 is moving or stationary, the traction rod 9 can be driven to rotate by starting the motor 10, and the traction rope 3 can be loosened and reeled by driving forward and reverse rotation, thereby achieving the purpose of dropping the feeding drum 4 or retracting the feeding drum 4. The aquaculture feed is continuously transported from the feed box 2 to the feeding drum 4, and then the feeding drum 4 is used to feed the aquaculture feed to different depth areas in the ocean.

[0039] A feeding hole 12 is provided on one side of the feeding cylinder 4, and a feeding assembly is slidably connected to the feeding cylinder 4. The feeding assembly is used to open the feeding holes 12 at different positions according to the feeding depth. The feeding assembly includes a retaining ring 13 slidably connected to the feeding cylinder 4, and a spring 15 is fixedly connected between two adjacent sets of retaining rings 13. A connecting plate 14 is provided in the retaining ring 13. Both ends of the spring 15 are fixedly connected to the two adjacent sets of connecting plates 14. A floating rod 16 is fixedly connected between the connecting plates 14. The floating rod 16 passes through the top of the feeding cylinder 4 and extends to the outside of the feeding cylinder 4. One end of the floating rod 16 is fixedly connected to the balance rod 5, and both ends of the balance rod 5 are connected to the float 6 through the connecting rod 7.

[0040] In this embodiment, at least four sets of retaining rings 13 are slidably arranged in the feeding tube 4 at the same horizontal position. Feeding holes 12 are opened in the side wall of the feeding tube 4. The retaining rings 13 are initially positioned at the opening of the feeding holes 12. Springs 15 are connected between the retaining rings 13. At the same time, a floating rod 16 is used to connect all the retaining rings 13. Since the top of the floating rod 16 extends to the outside of the feeding tube 4 and is connected to the balance rod 5, both ends of the balance rod 5 are connected to the float 6 via a connecting rod 7. As the feeding tube 4 sinks, the buoyancy of the float 6 increases, which can pull the retaining rings 13 to move in the feeding tube 4, releasing the feeding holes 12 for discharge. As the feeding tube 4 sinks to a different depth, the retaining rings 13 are lifted one by one, releasing the feeding holes 12 at different positions, so that the breeding feed can be fed at different depths, and the feeding amount gradually increases according to the depth, ensuring smooth and sufficient feed feeding.

[0041] It should be noted that the feeding cylinder 4 is in a full-feed state before feeding, and the feed box 2 continuously replenishes feed during the sinking process.

[0042] A piston assembly is provided in the feed box 2. When the piston assembly moves, the feed is squeezed out and transported to the feeding cylinder 4. The piston assembly includes a push plate 33 that is slidably connected to the feed box 2. A connecting rod 23 is fixedly connected to one side of the push plate 33. One end of the connecting rod 23 is slidably connected to the feed box 2 and extends to the outside of the feed box 2. A slope 27 is provided on the bottom surface of the feed box 2. A discharge port 37 is provided in the slope 27. The bottom of the discharge port 37 is connected to a guide hopper 38. The discharge port of the guide hopper 38 is connected to a feed pipe 39. A feed port 40 is provided at the top of the feeding cylinder 4. The feed pipe 39 is fixedly connected to the feed port 40, and the feed pipe 39 is configured as a steel hose structure.

[0043] In this embodiment, a piston assembly is provided in the feed box 2 , and the piston pressure is utilized to further improve the feeding efficiency and prevent seawater from reversely permeating into the feed box 2 through the feeding tube 4 .

[0044] Specifically, the connecting rod 23 is used to push the push plate 33 toward one side of the inside of the feed box 2, pushing the feed to the direction of the discharge port 37. The inclined surface 27 is set as an inclined structure, and the feed will fall into the discharge port 37 along the inclined surface 27, and continue to enter the feeding cylinder 4 through the feed port 40 via the guide hopper 38 and the conveying pipe 39.

[0045] A transmission assembly is provided between the connecting rod 23 and the floating rod 16, and the transmission assembly includes a first rack 17 fixedly connected to one side of the floating rod 16, a first gear 19 is engaged with one side of the first rack 17, and the first gear 19 is rotatably mounted on the floating plate 1 through a first rotating shaft 21, and a second gear 20 is transmission-connected to one side of the first gear 19, a second rack 22 is engaged with the top of the second gear 20, and the second rack 22 is fixedly connected to the bottom of the connecting rod 23, and the second gear 20 is rotatably mounted on the floating plate 1 through a second rotating shaft 25. A second synchronous pulley 41 is installed on the surface of the first rotating shaft 21, and the two sets of second synchronous pulleys 41 are transmission-connected, and a second through groove 26 is opened in the floating plate 1 at the position where the floating rod 16 passes through.

[0046] Specifically, as the feeding drum 4 sinks, the retaining ring 13 moves upward under the action of the float 6, and the floating rod 16 moves upward, driving the first rack 17 to move upward. The first rack 17 engages the first gear 19 to rotate, and then drives the second gear 20 to rotate through the transmission of the two sets of second synchronous pulleys 41, thereby driving the connecting rod 23 to move into the feed box 2, driving the push plate 33 in the feed box 2 to perform piston movement, and squeezing and discharging the feed in the feed box 2.

[0047] Fin plates 34 are symmetrically mounted on both sides of the second rack 22 . Two sets of positioning frames 24 are symmetrically arranged on the floating plate 1 and on both sides of the connecting rod 23 . The fin plates 34 are slidably mounted in the positioning frames 24 .

[0048] It should be noted that in order to ensure the stability of the moving structure when the end of the connecting rod 23 is driven, fins 34 are symmetrically arranged on both sides of the second rack 22, and positioning frames 24 are symmetrically arranged on both sides of the connecting rod 23. During the movement of the connecting rod 23, the fins 34 slide stably in the positioning frames 24.

[0049] An air bag 35 is connected between the connecting rod 23 and a side wall of the feed box 2. Exhaust holes 36 are equidistantly provided at the bottom of the air bag 35. A one-way valve is installed in the exhaust hole 36.

[0050] Furthermore, considering that the working environment of the feed box 2 is often placed on the sea surface with high humidity, the feed may clump, affecting the smooth feeding and posing a risk of deterioration, the push plate 33 is moved to compress the air bag 35 in the feed box 2, and the exhaust hole 36 is used to blow air into the feed box 2. Blowing the feed can not only prevent the feed from clumping, but also drive the gas flow in the feed box 2, remove moisture, and ensure that the feed box 2 is dry.

[0051] A stirring assembly is provided in the feed box 2 above the discharge port 37, and the stirring assembly includes a stirring shaft 28 rotatably installed in the feed box 2 and a stirring blade 29 fixedly installed on the surface of the stirring shaft 28; one end of the stirring shaft 28 extends to the outside of the feed box 2 and is fixedly installed with a first synchronous pulley 31, and one end of the traction rod 9 is also fixedly installed with a first synchronous pulley 31, and the two sets of first synchronous pulleys 31 are connected by a transmission belt 32.

[0052] Since the feed is fed between the feed box 2 and the feeding cylinder 4 through the discharge port 37, the guide hopper 38 and the delivery pipe 39, as the feeding cylinder 4 sinks, the delivery pipe 39 is stretched, the feeding time becomes longer, and the feed stays longer inside it. Therefore, the discharge port 37 is prone to blockage. In this embodiment, a rotatable stirring shaft 28 is provided above the discharge port 37, and a stirring blade 29 is provided on the surface of the stirring shaft 28. Since the traction rod 9 keeps rotating during the sinking process of the feeding cylinder 4, the transmission belt 32 is used to drive the first synchronous pulley 31 at one end of the stirring shaft 28 to rotate, thereby driving the stirring shaft 28 to rotate, which can not only stir the feed in the feed box 2 and further prevent agglomeration, but also break up the fallen feed to prevent it from clogging in the discharge port 37, thereby better ensuring the effect of subsequent continuous feeding.

[0053] It should be noted that the present invention operates in the ocean, and seawater inevitably enters the upper surface of the floating plate 1. Therefore, in addition to the first and second slots 18 and 26, overflow holes 30 are also provided on the panels on both sides of the floating plate 1 to promptly drain excess seawater and ensure the balance of the device. Furthermore, all electrical components and transmission parts are protected by protective covers and sealed as needed to ensure normal operation of the device.

[0054] Working Principle: In the present invention, when the device is used, the motor 10 is started to drive the traction rod 9 to rotate. By driving the traction rope 3 in the forward and reverse directions, the traction rope 3 is loosened and reeled, thereby achieving the purpose of releasing or retracting the feeding drum 4. The feeding tank 2 continuously transports the aquaculture feed into the feeding drum 4, and the feeding drum 4 then feeds the aquaculture feed to different depth areas in the ocean.

[0055] As the feeding cylinder 4 sinks, the buoyancy of the float 6 increases, which can pull the retaining ring 13 to move in the feeding cylinder 4, releasing the feeding holes 12 for discharge. As the feeding cylinder 4 sinks to a different depth, the retaining rings 13 are lifted one by one, releasing the feeding holes 12 at different positions, so that the breeding feed can be fed at different depths, and the feeding amount gradually increases according to the depth, ensuring smooth and sufficient feeding of the feed;

[0056] At the same time, the floating ball 6 drives the retaining ring 13 to move upward, and the floating rod 16 moves upward, driving the first rack 17 to move upward. The first rack 17 engages with the first gear 19 to rotate, and then drives the second gear 20 to rotate through the two sets of second synchronous pulleys 41, thereby driving the connecting rod 23 to move into the feed box 2, driving the push plate 33 in the feed box 2 to perform piston movement, squeezing and discharging the feed in the feed box 2;

[0057] As the feeding drum 4 sinks, the traction rod 9 keeps rotating all the time, so the transmission belt 32 is used to drive the first synchronous pulley 31 at one end of the stirring shaft 28 to rotate, thereby driving the stirring shaft 28 to rotate, which can not only stir the feed in the feed box 2 to further prevent agglomeration, but also break up the fallen feed to prevent it from clogging in the discharge port 37, thereby better ensuring the effect of subsequent continuous feeding.

[0058] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A marine aquaculture feeding device, comprising a floating plate (1), wherein floats (8) are fixedly mounted at the four corners of the bottom of the floating plate (1), a feed box (2) is fixedly mounted on the floating plate (1), and a feeding cylinder (4) connected to the feed box (2) is provided at the bottom of the floating plate (1), and a traction assembly is connected between the floating plate (1) and the feeding cylinder (4), characterized in that: Also includes: A feeding hole (12) is provided on one side of the feeding cylinder (4), and a feeding assembly is slidably connected in the feeding cylinder (4), and the feeding assembly is used to open the feeding holes (12) at different positions according to the feeding depth. The feeding assembly includes a retaining ring (13) slidably connected in the feeding cylinder (4), and a spring (15) is fixedly connected between two adjacent groups of retaining rings (13). A connecting plate (14) is provided in the retaining ring (13), and both ends of the spring (15) are fixedly connected to the two adjacent groups of connecting plates (14); A floating rod (16) is fixedly connected between the connecting plates (14), the floating rod (16) passes through the top of the feeding cylinder (4) and extends to the outside of the feeding cylinder (4), and one end of the floating rod (16) is fixedly connected to a balancing rod (5), and both ends of the balancing rod (5) are connected to a floating ball (6) via a connecting rod (7); A piston assembly is provided in the feed box (2). When the piston assembly moves, the feed is squeezed out and transported to the feeding tube (4). The piston assembly includes a push plate (33) slidably connected to the feed box (2). One side of the push plate (33) is fixedly connected to a connecting rod (23). One end of the connecting rod (23) is slidably connected to the feed box (2) and extends to the outside of the feed box (2). A transmission assembly is provided between the connecting rod (23) and the floating rod (16). The transmission assembly includes a first rack (17) fixedly connected to one side of the floating rod (16). One side of the first rack (17) is engaged with a first gear (19). The first gear (19) is rotatably mounted on the floating plate (1) through a first rotating shaft (21). One side of the first gear (19) is transmission-connected to a second gear (20). The top of the second gear (20) is engaged with a second rack (22). The second rack (22) is fixedly connected to the bottom of the connecting rod (23). The second gear (20) is rotatably mounted on the floating plate (1) via a second rotating shaft (25); a second synchronous pulley (41) is mounted on the surface of the first rotating shaft (21); and two sets of the second synchronous pulleys (41) are transmission-connected; Fin plates (34) are symmetrically mounted on both sides of the second rack (22); two sets of positioning frames (24) are symmetrically arranged on the floating plate (1) and on both sides of the connecting rod (23); the fin plates (34) are slidably mounted in the positioning frames (24); An air bag (35) is connected between the connecting rod (23) and a side wall of the feed box (2), and exhaust holes (36) are equidistantly opened at the bottom of the air bag (35), and a one-way valve is installed in the exhaust hole (36); A first through slot (18) is provided in the floating plate (1) at a position where the traction rope (3) passes through, a second through slot (26) is provided in the floating plate (1) at a position where the floating rod (16) passes through, and overflow holes (30) are provided on both sides of the floating plate (1).

2. The marine aquaculture feeding device according to claim 1, characterized in that: The traction assembly comprises a traction rod (9) rotatably mounted on a floating plate (1), fixed ear plates (11) are provided at both ends of the traction rod (9), the fixed ear plates (11) and the floating plate (1) are fixedly connected, one end of the traction rod (9) is transmission-connected to a motor (10), a traction rope (3) is fixedly wound around the surface of the traction rod (9), and the end of the traction rope (3) away from the traction rod (9) is fixedly connected to the top of the feeding cylinder (4).

3. The marine aquaculture feeding device according to claim 2, characterized in that: The bottom surface of the feed box (2) is provided with an inclined surface (27), a feed outlet (37) is provided in the inclined surface (27), the bottom of the feed outlet (37) is connected to a guide hopper (38), the discharge port of the guide hopper (38) is connected to a feed pipe (39), a feed inlet (40) is provided on the top of the feeding cylinder (4), the feed pipe (39) and the feed inlet (40) are fixedly connected, and the feed pipe (39) is provided with a steel hose structure.

4. The marine aquaculture feeding device according to claim 3, characterized in that: A stirring assembly is provided above the feed opening (37) in the feed box (2), and the stirring assembly comprises a stirring shaft (28) rotatably mounted in the feed box (2) and a stirring blade (29) fixedly mounted on the surface of the stirring shaft (28); One end of the stirring shaft (28) extends to the outside of the feed box (2) and is fixedly mounted with a first synchronous pulley (31). One end of the traction rod (9) is also fixedly mounted with a first synchronous pulley (31). The two sets of the first synchronous pulleys (31) are connected by a transmission belt (32).

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