A live fish farming feeding device with a multi-compartment linkage adjustment structure

Abstract

This invention relates to the field of live fish feeding technology and discloses a live fish farming feeding device with a multi-compartment linkage adjustment structure. The device includes a rearing pond, a connecting seat fixedly connected to the top of the pond, and a feed hopper connected to the connecting seat via a support frame fixed to its upper surface. It also includes a filter screen, comprising a rotating cylinder with a connecting sleeve fixedly connected to its outer circumference. A support shaft, connected to the outer surface of the connecting seat, is rotatably connected to the inner wall of the connecting sleeve. This live fish farming feeding device with a multi-compartment linkage adjustment structure effectively solves the problem in existing technologies where fish fry are mostly fed manually, resulting in a small feeding area. Newly hatched fish fry have weak activity and a limited foraging range. If the feeding is uneven, significant differences in size will become apparent after a few days, and weaker individuals will gradually die due to insufficient feeding ability, leading to a substantial decrease in the survival rate of the fish fry.

Description

Technical Field

[0001] This invention relates to the field of live fish feeding technology, specifically to a live fish aquaculture feeding device with a multi-compartment linkage adjustment structure. Background Technology

[0002] As aquaculture develops rapidly towards large-scale and intensive operations, the requirements for density and cycle control in live fish farming are constantly increasing. As a core link affecting fish growth efficiency, feed utilization rate, and aquaculture water quality, the feeding process places higher demands on the precision and efficiency of feeding equipment.

[0003] In existing technologies, fish fry are mostly fed by manual scattering, which covers a small feeding area. The fry that have just hatched a few days ago have weak activity and a small foraging range. If the brine shrimp are not evenly distributed when feeding them at this time, the differences in their size will become very obvious after a few days. The weaker individuals will gradually die due to insufficient ability to compete for food, resulting in a significant decrease in the survival rate of the fish fry. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a live fish farming feeding device employing a multi-compartment linkage adjustment structure. This device effectively solves the problem that in existing technologies, fish fry are mostly fed manually by scattering, resulting in a small feeding area. Furthermore, newly hatched fish fry have weak activity levels and a limited foraging range. If brine shrimp are not evenly distributed during feeding at this stage, significant differences in their size will become apparent after a few days, and weaker individuals will gradually die due to insufficient feeding ability, leading to a substantial decrease in the survival rate of the fish fry.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides a feeding device for live fish farming using a multi-compartment linkage adjustment structure, comprising:

[0007] The culture pond has a connecting seat fixedly connected to its top, and the connecting seat is connected to a feed hopper via a support frame fixed to its upper surface; wherein, the feed hopper is equipped with a first layer of filter screen, which can pre-intercept brine shrimp egg shells.

[0008] The filter screen section includes a rotating drum, a connecting sleeve is fixedly connected to the outer circumference of the rotating drum, a support shaft connected to the outer surface of the connecting seat is rotatably connected to the inner wall surface of the connecting sleeve, a screen is provided at the port of the rotating drum, and a scraping component is provided inside the rotating drum.

[0009] The feeding unit includes a cylinder, and a guide rail is fixedly connected to the upper surface of the breeding pond. The cylinder is slidably connected to the outer surface of the guide rail via a movable seat fixed on its top. A bidirectional spiral blade is rotatably connected inside the cylinder.

[0010] Furthermore, multiple breeding ponds are provided, and a slidable baffle is connected to the inner wall surface of each breeding pond. Multiple breeding ponds are divided into two parts by the same slidable baffle. The baffle slides along the inner wall of the breeding pond to adjust the volume of a single compartment. A waste liquid tank connected to the inner wall surface of the breeding pond is provided at the bottom of the rotating cylinder.

[0011] Furthermore, the scraping component includes a reciprocating rod, the outer surface of which is fitted with a limiting block that is fixedly connected to the inner wall surface of the rotating drum, the outer circumferential surface of which is provided with a toothed groove, and the outer end of which is fixedly connected with a scraper that fits against the inner surface of the screen. The scraper is provided in two sets, and the two sets of scrapers are symmetrically distributed with the reciprocating rod as the center.

[0012] Furthermore, the limiting block is internally slidably connected to a toothed rod that meshes with the inner wall surface of the toothed groove, and the outer end of the toothed rod passes through the rotating cylinder and is fixedly connected to a ring plate.

[0013] Furthermore, a flow guide end seat is fixedly installed at the outer end of the rotating drum. A discharge chamber is opened on the side of the flow guide end seat near the rotating drum, and a feed chamber is opened on the side of the flow guide end seat away from the rotating drum. The discharge chamber and the feed chamber are connected internally.

[0014] Furthermore, a cover plate is slidably connected at the junction of the discharge chamber and the feed chamber, a groove is provided on the outer surface of the guide end seat, a connecting rod is rotatably connected to the outer surface of the cover plate, and a sliding seat that fits against the inner wall surface of the groove is rotatably connected to the end of the connecting rod away from the cover plate. A spring is provided on the inner wall surface of the groove that is connected to the outer surface of the sliding seat.

[0015] Furthermore, a gear is fixedly connected to the outer surface of the coupling sleeve, a connecting frame is fixedly connected to the upper surface of the movable seat, the connecting frame is rotatably connected to a ratchet that meshes with the outer surface of the gear via a rotating shaft located inside it, a torsion spring connected to the inside of the ratchet is sleeved on the outer surface of the rotating shaft, and a stop block is fixedly connected to the upper surface of the connecting frame.

[0016] Furthermore, a telescopic shaft is internally connected to one of the connecting seats near the ring plate, and an i-shaped block that fits against the outer surface of the ring plate is fixedly connected to the outer end of the telescopic shaft. A bracket is fixedly connected to the outer surface of one of the connecting seats near the sliding seat, and a magnetic block is embedded inside the bracket. The outer surface of the sliding seat adopts a magnetic design that is magnetically connected to the outer surface of the magnetic block.

[0017] The magnetic blocks are arranged in two symmetrical positions around the connecting sleeve. When the drum rotates and its axis is perpendicular, the magnetic blocks are close to the sliding seats. At this time, the magnetic force is greater than the elastic force of the spring. Under the action of the magnetic force, the sliding seats at the upper and lower ends slide towards their corresponding magnetic blocks. The two sliding seats move towards each other, the spring is compressed, and the cover is pulled outward through the connecting rod, so that the discharge chamber and the feed chamber are restored to the communication state.

[0018] Furthermore, a feed inlet is fixedly connected to the middle of the barrel, and a discharge inlet is provided at the outer end of the barrel, with two discharge inlets. The feed inlet faces upward, and both discharge inlets face downward. A water inlet pipe is fixedly connected to the bottom of the hopper, and a valve body is provided at the bottom of the hopper for screening brine shrimp or clean water into the filter screen.

[0019] The technical solution provided by this invention has the following advantages compared with the prior art:

[0020] This invention features a feeding section. Addressing the issue of localized feed accumulation in existing equipment, this device employs a combined moving structure of bidirectional spiral conveying and mobile feeding. The bidirectional spiral blades inside the cylinder are symmetrically spiraled around the central feeding port, evenly distributing the brine shrimp to both ends for simultaneous discharge through two feeding ports. Simultaneously, the moving base drives the entire cylinder along guide rails above the aquaculture pond, ensuring the discharge area covers the effective space of the pond, achieving dynamic and uniform feeding. This effectively avoids the problems of uneven feeding, insufficient feeding by some fry, increased size differences among fry, and the gradual death of weaker individuals due to insufficient feeding ability, leading to a significant decrease in fry survival rates.

[0021] Furthermore, this equipment achieves efficient impurity removal and desalination of the brine shrimp mixture through a dual purification design of pre-filtration in the feed hopper and interception in the rotating drum. The first-layer filter inside the feed hopper pre-intercepts brine shrimp eggshells, reducing the burden on subsequent filtration; the screens at both ends of the rotating drum (with pore sizes smaller than brine shrimp larvae) precisely trap brine shrimp, while the valve controls the switch to the clear water channel to rinse the trapped brine shrimp with salt, preventing salt from entering the aquaculture pond and disrupting the water's salinity balance. The entire purification process requires no manual intervention and avoids the damage to brine shrimp larvae caused by traditional rinsing methods, ensuring feed cleanliness and activity, and reducing the risk of aquaculture water pollution. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the guardrail and guide rail according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the connecting seat, support frame, hopper, waste liquid tank and movable seat according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the separate structure of the connecting seat, support shaft, rotating cylinder and connecting frame according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the separation structure of the movable seat and the bidirectional spiral plate in an embodiment of the present invention;

[0028] Figure 6 This is an embodiment of the present invention. Figure 5 A magnified structural diagram of part A in the middle;

[0029] Figure 7 This is a schematic diagram of the separate structure of the rotating drum, the guide end seat, the telescopic shaft, and the bracket according to an embodiment of the present invention;

[0030] Figure 8 This is a schematic cross-sectional view of the rotating drum according to an embodiment of the present invention;

[0031] Figure 9 This is an embodiment of the present invention. Figure 8 A magnified structural diagram of section B in the middle;

[0032] Figure 10 This is a schematic diagram of the scraper and screen in an embodiment of the present invention.

[0033] The labels in the diagram represent: 1. Aquaculture pond; 11. Connecting seat; 111. Telescopic shaft; 112. C-shaped block; 113. Bracket; 114. Magnetic block; 12. Support frame; 13. Feed hopper; 14. Parapet; 15. Waste liquid tank; 2. Filter screen; 21. Rotary drum; 22. Coupling sleeve; 221. Gear; 23. Support shaft; 24. Screen; 25. Scraper; 251. Reciprocating rod; 252. Limiting block; 253. Scraper; 2 54. Toothed rod; 255. Ring plate; 26. Guide end seat; 261. Discharge chamber; 262. Feed chamber; 263. Slide groove; 27. Cover plate; 271. Connecting rod; 272. Sliding seat; 273. Spring; 3. Feeding section; 31. Barrel; 311. Feed inlet; 312. Discharge inlet; 32. Guide rail; 33. Moving seat; 34. Bidirectional spiral blade; 35. Connecting frame; 351. Racket tooth; 352. Torsion spring; 353. Stop block. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] The present invention will be further described below with reference to embodiments.

[0036] Example:

[0037] Please see Figures 1-10 This invention provides a technical solution: a live fish farming feeding device employing a multi-compartment linkage adjustment structure, comprising:

[0038] A breeding pond 1 is provided, and a connecting seat 11 is fixedly connected to the top of the breeding pond 1. The connecting seat 11 is connected to a feed hopper 13 through a support frame 12 fixed to its upper surface.

[0039] The filter screen section 2 includes a rotating drum 21. A connecting sleeve 22 is fixedly connected to the outer circumference of the rotating drum 21. A support shaft 23 connected to the outer surface of the connecting seat 11 is rotatably connected to the inner wall surface of the connecting sleeve 22. A screen 24 is provided at the port of the rotating drum 21. A scraping component 25 is provided inside the rotating drum 21.

[0040] Feeding section 3 includes a cylinder 31. A guide rail 32 is fixedly connected to the upper surface of the breeding pond 1. The cylinder 31 is slidably connected to the outer surface of the guide rail 32 through a movable seat 33 fixed on its top. A bidirectional spiral blade 34 is rotatably connected inside the cylinder 31.

[0041] Multiple breeding ponds 1 are provided. A guardrail 14 is slidably connected to the inner wall surface of the breeding pond 1. A waste liquid tank 15 connected to the inner wall surface of the breeding pond 1 is provided at the bottom of the rotating cylinder 21.

[0042] The scraping component 25 includes a reciprocating rod 251. A limiting block 252, which is fixedly connected to the inner wall of the rotating drum 21, is fitted onto the outer surface of the reciprocating rod 251. The outer circumferential surface of the reciprocating rod 251 has toothed grooves. A scraper 253, which adheres to the inner surface of the screen 24, is fixedly connected to the outer end of the reciprocating rod 251. Two sets of scrapers 253 are provided, symmetrically distributed with the reciprocating rod 251 as the center. The scrapers 253 and the reciprocating rod 251 can slide vertically relative to the rotating drum 21. Under the action of gravity, the lower scraper 253 can adhere to the inner surface of the lower screen 24. The upper screen 24 is concave under the action of brine shrimp and water flow, while the lower screen 24 is convex under the action of brine shrimp, water flow, and the scraper 253.

[0043] The limiting block 252 has a toothed rod 254 that meshes with the inner wall surface of the tooth groove. The outer end of the toothed rod 254 passes through the rotating cylinder 21 and is fixedly connected to a ring plate 255.

[0044] A flow guide end seat 26 is fixedly installed on the outer end of the rotating drum 21. A discharge chamber 261 is opened on the side of the flow guide end seat 26 close to the rotating drum 21, and a feed chamber 262 is opened on the side of the flow guide end seat 26 away from the rotating drum 21. The discharge chamber 261 and the feed chamber 262 are connected internally.

[0045] A cover plate 27 is slidably connected at the junction of the discharge chamber 261 and the feed chamber 262. A groove 263 is provided on the outer surface of the guide end seat 26. A connecting rod 271 is rotatably connected to the outer surface of the cover plate 27. A sliding seat 272 that fits against the inner wall surface of the groove 263 is rotatably connected to the end of the connecting rod 271 away from the cover plate 27. A spring 273 that connects to the outer surface of the sliding seat 272 is provided on the inner wall surface of the groove 263.

[0046] A gear 221 is fixedly connected to the outer surface of the coupling sleeve 22, and a connecting frame 35 is fixedly connected to the upper surface of the movable seat 33. The connecting frame 35 is rotatably connected to a ratchet 351 that meshes with the outer surface of the gear 221 via a rotating shaft located inside it. A torsion spring 352 that connects to the inside of the ratchet 351 is sleeved on the outer surface of the rotating shaft. A stop block 353 is fixedly connected to the upper surface of the connecting frame 35.

[0047] A telescopic shaft 111 is internally connected to a connecting seat 11 on the side near the ring plate 255. A U-shaped block 112 that fits against the outer surface of the ring plate 255 is fixedly connected to the outer end of the telescopic shaft 111. A bracket 113 is fixedly connected to the outer surface of a connecting seat 11 on the side near the sliding seat 272. A magnetic block 114 is embedded inside the bracket 113. The outer surface of the sliding seat 272 adopts a magnetic design that is magnetically connected to the outer surface of the magnetic block 114.

[0048] Two magnetic blocks 114 are provided, and the two magnetic blocks 114 are symmetrically distributed vertically around the connecting sleeve 22. When the rotating drum 21 rotates and the axis of the rotating drum 21 is in a vertical state, the magnetic blocks 114 are close to the sliding seats 272. At this time, the magnetic force is greater than the elastic force of the spring 273. Under the action of the magnetic force, the sliding seats 272 at the upper and lower ends slide towards their corresponding magnetic blocks 114. The two sliding seats 272 move towards each other, and the spring 273 is compressed. The connecting rod 271 pulls the cover plate 27 outward, so that the discharge chamber 261 and the feed chamber 262 are restored to the communication state.

[0049] The middle of the barrel 31 is fixedly connected to a feed inlet 311, and the outer end of the barrel 31 is provided with a discharge inlet 312, of which there are two. The opening of the feed inlet 311 faces upward, and the openings of the two discharge inlets 312 both face downward. The bottom end of the hopper 13 is fixedly connected to a water inlet pipe, and the bottom end of the hopper 13 is provided with a valve body for screening brine shrimp or clean water entering the filter screen section 2.

[0050] Multiple rearing ponds 1 are provided, and these ponds 1 are divided into two parts by a common partition 14. The partition 14 can slide along the inner wall of the rearing pond 1 to adjust the volume of each compartment. If the rearing pond 1 is too small, the high-density compression will exacerbate the stress response of the fish fry, and frequent collisions and friction will cause damage to their body surface, increasing the risk of infection with saprolegniasis and fin rot, and significantly increasing the mortality rate. At the same time, the imbalance between the volume ratio of fish fry metabolites and uneaten feed to the water body will lead to insufficient water self-purification capacity, a rapid drop in dissolved oxygen, and a high risk of poisoning or hypoxia causing fish to surface for air. If the rearing pond 1 is too large, the fish fry will be scattered, making it difficult to detect weak individuals and diseased fry during daily observation, making early disease warning difficult, and increasing feed waste.

[0051] The connecting seat 11 above the breeding pond 1 is fixed to support the feed hopper 13 via the support frame 12. The feed hopper 13 stores the mixed liquid of newly hatched brine shrimp (containing brine shrimp, egg shells and brine). The water inlet pipe at the bottom of the feed hopper is matched with the valve body, which can selectively deliver the mixed liquid or clean water to the filter screen 2.

[0052] The rotating drum 21 of the filter section 2 is rotatably connected to the support shaft 23 via a coupling sleeve 22. The support shaft 23 is fixed to the connecting seat 11, allowing the rotating drum 21 to rotate around the support shaft 23. Screens 24 (with apertures smaller than those of brine shrimp larvae) are fixed to the inner walls of both ends of the rotating drum 21. Guide end seats 26 are fixedly installed at both ends of the rotating drum 21. In the initial state, the central axis of the rotating drum 21 is vertical. The screen 24 and guide end seat 26 at one end are located at the top of the rotating drum 21, corresponding to the upper feed hopper 13. The screen 24 and guide end seat 26 at the other end are located at the bottom of the rotating drum 21, corresponding to the lower waste liquid tank 15.

[0053] Inside the rotating drum 21, in the scraping component 25, a reciprocating rod 251 passes through a limiting block 252 (the limiting block 252 is fixed to the inner wall of the rotating drum 21), allowing the reciprocating rod 251 to slide in a direction perpendicular to the screen 24; scraper blades 253 are symmetrically fixed at both ends of the reciprocating rod 251. Initially, the lower scraper blade 253 adheres to the inner surface of the lower screen 24 under the action of gravity.

[0054] The guide end seat 26 is fixedly installed at both ends of the rotating drum 21. The discharge chamber 261 and the feed chamber 262 inside it are initially in communication. The cover plate 27 is in the open state (the sliding seat 272 is attracted by the magnetic force of the magnetic block 114 and moves along the slide groove 263 towards the connecting sleeve 22. The spring 273 begins to compress and pushes the cover plate 27 open through the connecting rod 271).

[0055] The feeding section 3's barrel 31 is slidably connected to the guide rail 32 above the breeding pond 1 via the movable seat 33. The bidirectional spiral blades 34 inside the barrel 31 are in a stationary state. The feeding port 311 is aligned with the discharge end of the filter screen section 2, and the two discharge ports 312 correspond to different areas on both sides of the breeding pond 1.

[0056] The process of brine shrimp being discharged from feed hopper 13:

[0057] When the valve of the feed hopper 13 is opened, the brine shrimp mixture is transported through the pipeline to the feed chamber 262 of the upper guide end seat 26, and the equipment enters the filtration stage (the feed hopper 13 has a first layer of filter screen that can block the brine shrimp shells, and the brine shrimp mixture that flows out of the feed hopper 13 is brine shrimp mixture with the shrimp egg shells removed).

[0058] At this time, in the guide end seat 26 above the rotating drum 21, the sliding seat 272, under the magnetic force of the magnetic block 114, drives the cover plate 27 through the connecting rod 271 to open the communication channel between the discharge chamber 261 and the feed chamber 262. The mixed liquid flows into the rotating drum 21 through the feed chamber 262 and the discharge chamber 261. The inner wall of the feed chamber 262 adopts a conical design, with the diameter being largest on the side away from the rotating drum 21 and smallest on the side closer to the rotating drum 21. When the guide end seat 26 is in the upper position, the feed chamber 262, which is larger at the top and smaller at the bottom, facilitates the smooth entry of brine shrimp and brine into the rotating drum 21.

[0059] The brine shrimp mixture impacts the outer surface of the upper screen 24 (the side of the screen 24 away from the rotating drum 21 is the outer surface, and the side of the screen 24 closer to the rotating drum 21 is the inner surface). Water and fine impurities flow through the mesh of the screen 24 into the interior of the rotating drum 21, and finally pass through the inner surface of the lower screen 24 (initially facing downwards) and flow out into the waste liquid tank 15. Because the brine shrimp are larger than the mesh, they are intercepted on the outer surface of the upper screen 24. Under the continuous impact of the mixture, the upper screen 24 is subjected to outward pressure, presenting a downward concave arc shape (the inner surface is convex, suitable for the attachment and aggregation of brine shrimp).

[0060] At this time, the screen 24 below only passes through the waste liquid, with no brine shrimp attached. It maintains its natural state under the action of its own rigidity and the gravity of the waste liquid, and stays in contact with the scraper 253 below.

[0061] The scraping process for collecting brine shrimp after rinsing off the salt:

[0062] When the brine shrimp on the outer surface of the upper screen 24 accumulate to a set amount (detectable by a sensor), the valve body is adjusted, and the brine shrimp mixture channel in the feed hopper 13 is closed, allowing clean water to enter the flow pipe. The clean water flows into the rotating drum 21 through the upper feed chamber 262 and discharge chamber 261, rinsing the brine shrimp collected on the outer surface of the upper screen 24 to remove salt (salt is added for brine shrimp hatching). During the rinsing process, the salt adhering to the surface of the brine shrimp is dissolved, and the saltwater flow seeps into the interior of the rotating drum 21 through the mesh of the screen 24. At this time, the lower screen 24 of the rotating drum 21 is still facing downwards, and the saltwater flow flows out from the lower screen 24, collects downwards along the discharge chamber 261 of the lower guide end seat 26, and finally flows out to the waste liquid tank 15, completing the salt removal.

[0063] In the initial state, the movable seat 33 is fitted on the outer surface of the guide rail 32 away from the connecting seat 11, and is located in the breeding pond 1 on the side (rear side) close to the fence 14. When feeding is required, the movable seat 33 is internally driven to move along the guide rail 32 toward the connecting seat 11, that is, toward the rotating drum 21.

[0064] During the movement of the movable seat 33, the connecting frame 35, the feeding port 311, the ratchet 351, the rotating drum 21, and the gear 221 gradually approach each other until the first ratchet 351 on the side of the upper surface of the connecting frame 35 away from the guardrail 14 (front side) meshes with the teeth on the outer surface of the gear 221 (because the rear side of the ratchet 351 is provided with a stop block 353 fixed to the upper surface of the connecting frame 35, under the action of the internal torsion spring 352, the rear side of the ratchet 351 is in contact with the outer surface of the stop block 353 and maintains a vertical state). As the connecting frame 35 continues to move, multiple ratchet 351 gradually mesh with the outer surface of the gear 221 and drive the gear 221 to rotate 180 degrees.

[0065] Since gear 221 is fixedly connected to the coupling sleeve 22 on the outer surface of the rotating drum 21, when gear 221 rotates, it will drive the rotating drum 21 and the coupling sleeve 22 on its outer surface to rotate 180 degrees around the support shaft 23, causing the screen 24 originally located at the top to be located at the bottom, and the screen 24 originally located at the bottom to be located at the top; causing the guide end seat 26 originally located at the top to be located at the bottom, and the guide end seat 26 originally located at the bottom to be located at the top, and the positions of the screen 24 and the guide end seat 26 at the top and bottom ends to be swapped.

[0066] In the initial stage of the rotation of the drum 21, the axis of the drum 21 gradually changes from vertical to inclined. The positions of the upper and lower guide end seats 26 rotate around the axis of the support shaft 23. The sliding seat 272 on its outer surface also gradually deviates from the magnetic block 114. After the distance between the sliding seat 272 and the magnetic block 114 gradually increases, the magnetic force between the sliding seat 272 and the magnetic block 114 is less than the elastic force of the spring 273. The spring 273 unfolds and pushes the sliding seat 272 to slide along the slide groove 263 to the side away from the center of the drum 21. The two sliding seats 272 move in opposite directions. The sliding seat 272 moves the cover plate 27 to the closed state through the connecting rod 271, which isolates the discharge chamber 261 and the feed chamber 262.

[0067] At this time, the filtered brine shrimp are located between the screen 24 and the discharge chamber 261 in a sealed, independent space. As the axis of the rotating drum 21 changes from vertical to horizontal and then back to vertical, the space remains sealed to prevent the shrimp from falling or splashing out during the rotation of the drum 21. The brine shrimp slide down onto the inner wall surface of the guide end seat 26 and the inner surface of the cover plate 27 under the action of gravity.

[0068] After the rotating drum 21 rotates, the reciprocating rod 251 and scraper 253 inside slide within the limiting block 252 under the action of gravity. The scraper 253 at the bottom (originally located at the top and not in contact with the inner surface of the screen 24) slides downward until it contacts the inner surface of the screen 24 below. The lower screen 24 bulges downward due to the downward pushing force of the scraper 253. The scraper 253 at the top no longer contacts the upper surface of the screen 24 at the top (originally located at the bottom and in contact with the inner surface of the screen 24 in the corresponding direction). At this time, the lower surface of the upper scraper 253 contacts the upper surface of the limiting block 252, preventing the lower screen 24 from being damaged due to the excessive weight of the scraper 253 and the reciprocating rod 251.

[0069] After the rotating drum 21 and the guide end seat 26 rotate, the axis of the rotating drum 21 is in a vertical state, and the feed port 311 of the feeding part 3 moves to the bottom of the rotating drum 21. The axis of the feed port 311, the axis of the rotating drum 21 and the axis of the hopper 13 coincide.

[0070] At this time, the sliding seat 272 is once again acted upon by the magnetic block 114, and the two sliding seats 272 move towards each other to compress the spring 273, which in turn pulls the cover plate 27 into the open state via the connecting rod 271. Under the influence of gravity, most of the brine shrimp originally attached to the outer surface of the upper screen 24 (now facing down) fall to the inner surface of the cover plate 27, but some still adhere to the outer surface of the screen 24. At this time, the scraping device 25 starts its operation.

[0071] The telescopic shaft 111 inside the connecting seat 11 reciprocates (the C-shaped block 112 at the outer end of the telescopic shaft 111 limits the thickness of the ring plate 255, restricting the ring plate 255 in the left and right directions; simultaneously, the ring plate 255 can rotate freely with the rotating drum 21). The ring plate 255 drives the toothed rod 254 to slide left and right along the inside of the limiting block 252. The toothed rod 254 meshes with the toothed groove on the outer surface of the reciprocating rod 251, driving the reciprocating rod 251 to rotate around its central axis, simultaneously rotating and scraping away feed from the inner surface of the lower screen 24. The rotation trajectory of the scraper 253 completely covers the inner surface of the screen 24, ensuring that all brine shrimp attached to the outer surface of the screen 24 are scraped off. Compared to the traditional linear scraping method, rotary scraping effectively reduces feed residue and improves collection efficiency.

[0072] Meanwhile, the discharge chamber 261 of the lower guide end seat 26 adopts a conical design with a larger upper part and a smaller lower part. The diameter of the discharge chamber 261 is smallest on the side away from the rotating drum 21 and largest on the side closer to the rotating drum 21. This structure allows the scraped brine shrimp to naturally converge along the inner wall of the discharge chamber 261 under the action of gravity, and then fall smoothly into the feed port 311 of the lower drum 31, completing the collection and transfer of brine shrimp. Finally, the valve body draws clean water from the pipe and enters the upper feed chamber 262, discharge chamber 261, upper screen 24, and the interior of the rotating drum 21 through the water outlet at the bottom of the hopper 13. Finally, the water is flushed from the inner surface of the lower screen 24, and with the rotation of the scraper 253, the brine shrimp adhering to the outer surface of the lower screen 24 are removed, completing the collection and transfer of brine shrimp.

[0073] Artemia larvae are fragile. Scraping them off from the inner surface of the screen 24 avoids direct impact on the outer surface of the screen 24, reduces damage to the artemia larvae's body surface during the scraping process, and ensures the activity of the feed.

[0074] When the screen 24 is at the top, its outer surface intercepts the brine shrimp. At this time, the outer surface of the screen 24 forms a concave shape, and the mesh openings on the side of the screen 24 closest to the brine shrimp (facing upwards) have smaller apertures, effectively intercepting the brine shrimp and preventing them from spreading with the water flow. When the screen 24 is at the bottom, the inner surface of the screen 24 forms a concave shape under the action of the scraper 253, and correspondingly, the outer surface of the screen 24 forms a convex shape. The convex shape of the outer surface of the screen 24 expands the mesh openings on the side closest to the brine shrimp (facing downwards), increasing the aperture of the mesh openings. The brine shrimp that were originally trapped in the mesh openings lose their grip and are more likely to fall off. The rotation trajectory of the scraper 253 can completely cover the inner surface of the screen 24, and with the passive enlargement effect of the mesh openings, it ensures that all brine shrimp attached to the outer surface of the screen 24 and embedded in the mesh openings are scraped off.

[0075] The uniform delivery and feeding process of feeding section 3:

[0076] After the scraped brine shrimp and water enter the machine barrel 31 through the feed inlet 311, the feeding section 3 starts to convey and feed the shrimp.

[0077] The movable seat 33 slides along the guide rail 32 toward the guardrail 14 (rear side). During this process, since the ratchet 351 is provided with a stop block 353 on the rear side and there is no restriction on the front side, when the ratchet 351 passes the outer surface of the gear 221, the torsion spring 352 inside the ratchet 351 is compressed, and the ratchet 351 can rotate around the axis to the left without driving the gear 221 and the rotating drum 21 to rotate. The gear 221 and the rotating drum 21 remain in this state and wait for the feeding part 3 to pick up the feed for the next time.

[0078] The bidirectional spiral blades 34 inside the barrel 31 rotate (driven by a motor), with their left-hand and right-hand blades conveying brine shrimp to both ends of the barrel 31, and finally discharging them from the two feed ports 312 (the feed ports 312 open downwards to ensure that the brine shrimp fall directly into the aquaculture pond 1). The movable seat 33 slides along the guide rail 32, driving the barrel 31 to move above the aquaculture pond 1, so that the discharge range of the two feed ports 312 covers the entire effective space of the aquaculture pond 1 (the space enclosed by the aquaculture pond 1 and the side of the enclosure 14 near the connecting seat 11), achieving uniform feeding.

[0079] When cleaning is required, the valve body of hopper 13 switches to clean water mode, and clean water enters the interior of drum 21 through guide end seat 26. The rotation of drum 21 drives screen 24 to be washed alternately, and scraper 253 repeatedly scrapes the inner surface of screen 24 under the drive of reciprocating rod 251 to remove residual impurities in the mesh; waste liquid is discharged through waste liquid tank 15, completing the cleaning.

[0080] In summary, this feeding equipment has the following advantages in feeding brine shrimp:

[0081] Advantage 1: Compared to existing fixed-volume aquaculture ponds 1, this equipment uses sliding partitions 14 along the inner wall of the pond 1 to divide multiple ponds 1 into flexibly adjustable areas, achieving a match between the volume of a single compartment and the size of the fish fry. When the fish fry density is high, the volume of a single compartment can be increased to avoid exacerbating stress responses and surface injuries caused by high-density crowding, thus reducing the risk of infection and mortality from diseases such as water mold and fin rot. Simultaneously, it balances the ratio of metabolites, uneaten feed, and water, ensuring the water's self-purification capacity, maintaining stable dissolved oxygen levels, and reducing oxygen deficiency, surfacing, or poisoning incidents. When the fish fry density is low, the volume of a single compartment can be reduced, solving the problem of difficulty in observing diseased or weak fry caused by dispersed fry in large volumes, enabling early disease warning, and avoiding missed or wasted feed, thus improving the precision of aquaculture management.

[0082] Advantage 2: Existing equipment often lacks a targeted live feed processing structure. This equipment achieves efficient impurity removal and desalination of the brine shrimp mixture through a dual purification design of pre-filtration in the feed hopper 13 and interception by the rotating drum 21. The first-layer filter inside the feed hopper 13 can pre-intercept brine shrimp eggshells, reducing the burden on subsequent filtration; the screens 24 at both ends of the rotating drum 21 (with pore sizes smaller than brine shrimp larvae) can precisely intercept brine shrimp. At the same time, the valve body controls the switch to the clear water channel to rinse the intercepted brine shrimp with salt, preventing salt from entering the breeding pond 1 and disrupting the salinity balance of the water. The entire purification process requires no manual intervention and avoids the damage to brine shrimp larvae caused by traditional rinsing methods, ensuring feed cleanliness and activity, and reducing the risk of pollution to the aquaculture water.

[0083] Advantage 3: Compared with traditional straight scraping or external surface scraping structures, the scraping component 25 and the screen 24 of this equipment work together to smoothly remove the brine shrimp after impurity removal and desalination.

[0084] First, the screen 24 is made of a flexible material with shape self-adaptation capability. During the interception stage, the screen 24 is positioned above the rotating drum 21 and is concave on the outer surface due to the pressure of the mixed liquid. The aperture of the mesh on the upward side is reduced, which can enhance the interception effect of brine shrimp. During the scraping stage, the screen 24 is convex on the outer surface under the action of the scraper 253 below. The aperture of the mesh on the downward side is enlarged, so that the brine shrimp embedded in the mesh gaps lose the clamping force and are easier to fall off.

[0085] Secondly, the scraper 253 adopts an inner surface rotation scraping method. The rotation trajectory of the scraper 253 can completely cover the inner surface of the screen 24. Combined with the flushing action of clean water from the inside out, it forms a synergistic effect of scraping and rinsing. This not only avoids the direct impact of outer surface scraping on brine shrimp and reduces damage to the body surface of larvae, but also thoroughly removes attached and embedded bait, improving the bait recovery rate compared to the traditional structure.

[0086] Finally, the scraper 253 scrapes the inner surface of the screen 24 with more uniform force, which can reduce the wear and deformation of the screen 24, extend the service life of the screen 24, and reduce equipment maintenance costs.

[0087] Fourthly, when the movable seat 33 of the feeding section 3 moves along the guide rail 32, the ratchet 351 on the connecting frame 35 can drive the gear 221 to rotate the drum 21 180 degrees, realizing the reversal of the screen 24 position. During the rotation of the drum 21, the sliding seat 272 automatically completes the opening and sealing of the channel of the guide end seat 26 through the dynamic balance of magnetic force and spring 273 (when the drum 21 is vertical, the channel of the guide end seat 26 is open, allowing for loading and unloading; when the drum 21 is tilted, the channel of the guide end seat 26 is closed, ensuring that the brine shrimp do not scatter during the rotation process). After the drum 21 is positioned, the telescopic shaft 111 and the scraper 25 work together to start the scraping operation. The scraped brine shrimp fall directly into the feeding section 3 without manual transfer. The entire process achieves seamless connection of filtration, rinsing, rotation, scraping, and feeding, greatly reducing manual intervention, avoiding the reduction of feed activity due to operation delays, and improving operational efficiency.

[0088] Fifthly, addressing the issue of localized feed accumulation in existing equipment, this device employs a combined moving structure of bidirectional spiral conveying and mobile feeding. The bidirectional spiral blades 34 within the cylinder 31 form a symmetrical spiral direction with the central feeding port 311 as the boundary, evenly distributing the brine shrimp to both ends and simultaneously discharging them through the two feeding ports 312. Simultaneously, the moving base 33 drives the entire cylinder 31 along the guide rail 32 above the culture pond 1, ensuring that the discharge range of the feeding ports 312 covers the effective space of the culture pond 1, achieving dynamic and uniform feeding. Furthermore, the feeding amount can be controlled by adjusting the rotation speed of the bidirectional spiral blades 34, combined with the adjusted culture density, to achieve precise feed delivery, further reducing feed waste and lowering culture costs.

[0089] Advantage Six: When cleaning is required, the valve at the bottom of the feed hopper 13 switches to clean water mode, allowing clean water to enter the rotating drum 21. The rotating drum 21 rotates, causing the screen 24 to alternately move to the rinsing position. Driven by the reciprocating rod 251, the scraper 253 repeatedly scrapes the inner surface of the screen 24, removing residual impurities from the mesh. Waste liquid is then discharged through the waste liquid tank 15 below. This cleaning process requires no disassembly of parts, is simple and convenient to operate, and effectively avoids equipment contamination caused by feed residue and spoilage, ensuring the long-term stability of the equipment and the hygiene and safety of the feed.

[0090] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0091] The present invention will be further described below with reference to embodiments.

[0092] Example:

[0093] Please see Figures 1-10 This invention provides a technical solution: a live fish farming feeding device employing a multi-compartment linkage adjustment structure, comprising:

[0094] A breeding pond 1 is provided, and a connecting seat 11 is fixedly connected to the top of the breeding pond 1. The connecting seat 11 is connected to a feed hopper 13 through a support frame 12 fixed to its upper surface.

[0095] The filter screen section 2 includes a rotating drum 21. A connecting sleeve 22 is fixedly connected to the outer circumference of the rotating drum 21. A support shaft 23 connected to the outer surface of the connecting seat 11 is rotatably connected to the inner wall surface of the connecting sleeve 22. A screen 24 is provided at the port of the rotating drum 21. A scraping component 25 is provided inside the rotating drum 21.

[0096] Feeding section 3 includes a cylinder 31. A guide rail 32 is fixedly connected to the upper surface of the breeding pond 1. The cylinder 31 is slidably connected to the outer surface of the guide rail 32 through a movable seat 33 fixed on its top. A bidirectional spiral blade 34 is rotatably connected inside the cylinder 31.

[0097] Multiple breeding ponds 1 are provided. A guardrail 14 is slidably connected to the inner wall surface of the breeding pond 1. A waste liquid tank 15 connected to the inner wall surface of the breeding pond 1 is provided at the bottom of the rotating cylinder 21.

[0098] The scraping component 25 includes a reciprocating rod 251. A limiting block 252, which is fixedly connected to the inner wall of the rotating drum 21, is fitted onto the outer surface of the reciprocating rod 251. The outer circumferential surface of the reciprocating rod 251 has toothed grooves. A scraper 253, which adheres to the inner surface of the screen 24, is fixedly connected to the outer end of the reciprocating rod 251. Two sets of scrapers 253 are provided, symmetrically distributed with the reciprocating rod 251 as the center. The scrapers 253 and the reciprocating rod 251 can slide vertically relative to the rotating drum 21. Under the action of gravity, the lower scraper 253 can adhere to the inner surface of the lower screen 24. The upper screen 24 is concave under the action of brine shrimp and water flow, while the lower screen 24 is convex under the action of brine shrimp, water flow, and the scraper 253.

[0099] The limiting block 252 has a toothed rod 254 that meshes with the inner wall surface of the tooth groove. The outer end of the toothed rod 254 passes through the rotating cylinder 21 and is fixedly connected to a ring plate 255.

[0100] A flow guide end seat 26 is fixedly installed on the outer end of the rotating drum 21. A discharge chamber 261 is opened on the side of the flow guide end seat 26 close to the rotating drum 21, and a feed chamber 262 is opened on the side of the flow guide end seat 26 away from the rotating drum 21. The discharge chamber 261 and the feed chamber 262 are connected internally.

[0101] A cover plate 27 is slidably connected at the junction of the discharge chamber 261 and the feed chamber 262. A groove 263 is provided on the outer surface of the guide end seat 26. A connecting rod 271 is rotatably connected to the outer surface of the cover plate 27. A sliding seat 272 that fits against the inner wall surface of the groove 263 is rotatably connected to the end of the connecting rod 271 away from the cover plate 27. A spring 273 that connects to the outer surface of the sliding seat 272 is provided on the inner wall surface of the groove 263.

[0102] A gear 221 is fixedly connected to the outer surface of the coupling sleeve 22, and a connecting frame 35 is fixedly connected to the upper surface of the movable seat 33. The connecting frame 35 is rotatably connected to a ratchet 351 that meshes with the outer surface of the gear 221 via a rotating shaft located inside it. A torsion spring 352 that connects to the inside of the ratchet 351 is sleeved on the outer surface of the rotating shaft. A stop block 353 is fixedly connected to the upper surface of the connecting frame 35.

[0103] A telescopic shaft 111 is internally connected to a connecting seat 11 on the side near the ring plate 255. A U-shaped block 112 that fits against the outer surface of the ring plate 255 is fixedly connected to the outer end of the telescopic shaft 111. A bracket 113 is fixedly connected to the outer surface of a connecting seat 11 on the side near the sliding seat 272. A magnetic block 114 is embedded inside the bracket 113. The outer surface of the sliding seat 272 adopts a magnetic design that is magnetically connected to the outer surface of the magnetic block 114.

[0104] Two magnetic blocks 114 are provided, and the two magnetic blocks 114 are symmetrically distributed vertically around the connecting sleeve 22. When the rotating drum 21 rotates and the axis of the rotating drum 21 is in a vertical state, the magnetic blocks 114 are close to the sliding seats 272. At this time, the magnetic force is greater than the elastic force of the spring 273. Under the action of the magnetic force, the sliding seats 272 at the upper and lower ends slide towards their corresponding magnetic blocks 114. The two sliding seats 272 move towards each other, and the spring 273 is compressed. The connecting rod 271 pulls the cover plate 27 outward, so that the discharge chamber 261 and the feed chamber 262 are restored to the communication state.

[0105] The middle of the barrel 31 is fixedly connected to a feed inlet 311, and the outer end of the barrel 31 is provided with a discharge inlet 312, of which there are two. The opening of the feed inlet 311 faces upward, and the openings of the two discharge inlets 312 both face downward. The bottom end of the hopper 13 is fixedly connected to a water inlet pipe, and the bottom end of the hopper 13 is provided with a valve body for screening brine shrimp or clean water entering the filter screen section 2.

[0106] Multiple rearing ponds 1 are provided, and these ponds 1 are divided into two parts by a common partition 14. The partition 14 can slide along the inner wall of the rearing pond 1 to adjust the volume of each compartment. If the rearing pond 1 is too small, the high-density compression will exacerbate the stress response of the fish fry, and frequent collisions and friction will cause damage to their body surface, increasing the risk of infection with saprolegniasis and fin rot, and significantly increasing the mortality rate. At the same time, the imbalance between the volume ratio of fish fry metabolites and uneaten feed to the water body will lead to insufficient water self-purification capacity, a rapid drop in dissolved oxygen, and a high risk of poisoning or hypoxia causing fish to surface for air. If the rearing pond 1 is too large, the fish fry will be scattered, making it difficult to detect weak individuals and diseased fry during daily observation, making early disease warning difficult, and increasing feed waste.

[0107] The connecting seat 11 above the breeding pond 1 is fixed to support the feed hopper 13 via the support frame 12. The feed hopper 13 stores the mixed liquid of newly hatched brine shrimp (containing brine shrimp, egg shells and brine). The water inlet pipe at the bottom of the feed hopper is matched with the valve body, which can selectively deliver the mixed liquid or clean water to the filter screen 2.

[0108] The rotating drum 21 of the filter section 2 is rotatably connected to the support shaft 23 via a coupling sleeve 22. The support shaft 23 is fixed to the connecting seat 11, allowing the rotating drum 21 to rotate around the support shaft 23. Screens 24 (with apertures smaller than those of brine shrimp larvae) are fixed to the inner walls of both ends of the rotating drum 21. Guide end seats 26 are fixedly installed at both ends of the rotating drum 21. In the initial state, the central axis of the rotating drum 21 is vertical. The screen 24 and guide end seat 26 at one end are located at the top of the rotating drum 21, corresponding to the upper feed hopper 13. The screen 24 and guide end seat 26 at the other end are located at the bottom of the rotating drum 21, corresponding to the lower waste liquid tank 15.

[0109] Inside the rotating drum 21, in the scraping component 25, a reciprocating rod 251 passes through a limiting block 252 (the limiting block 252 is fixed to the inner wall of the rotating drum 21), allowing the reciprocating rod 251 to slide in a direction perpendicular to the screen 24; scraper blades 253 are symmetrically fixed at both ends of the reciprocating rod 251. Initially, the lower scraper blade 253 adheres to the inner surface of the lower screen 24 under the action of gravity.

[0110] The guide end seat 26 is fixedly installed at both ends of the rotating drum 21. The discharge chamber 261 and the feed chamber 262 inside it are initially in communication. The cover plate 27 is in the open state (the sliding seat 272 is attracted by the magnetic force of the magnetic block 114 and moves along the slide groove 263 towards the connecting sleeve 22. The spring 273 begins to compress and pushes the cover plate 27 open through the connecting rod 271).

[0111] The feeding section 3's barrel 31 is slidably connected to the guide rail 32 above the breeding pond 1 via the movable seat 33. The bidirectional spiral blades 34 inside the barrel 31 are in a stationary state. The feeding port 311 is aligned with the discharge end of the filter screen section 2, and the two discharge ports 312 correspond to different areas on both sides of the breeding pond 1.

[0112] The process of brine shrimp being discharged from feed hopper 13:

[0113] When the valve of the feed hopper 13 is opened, the brine shrimp mixture is transported through the pipeline to the feed chamber 262 of the upper guide end seat 26, and the equipment enters the filtration stage (the feed hopper 13 has a first layer of filter screen that can block the brine shrimp shells, and the brine shrimp mixture that flows out of the feed hopper 13 is brine shrimp mixture with the shrimp egg shells removed).

[0114] At this time, in the guide end seat 26 above the rotating drum 21, the sliding seat 272, under the magnetic force of the magnetic block 114, drives the cover plate 27 through the connecting rod 271 to open the communication channel between the discharge chamber 261 and the feed chamber 262. The mixed liquid flows into the rotating drum 21 through the feed chamber 262 and the discharge chamber 261. The inner wall of the feed chamber 262 adopts a conical design, with the diameter being largest on the side away from the rotating drum 21 and smallest on the side closer to the rotating drum 21. When the guide end seat 26 is in the upper position, the feed chamber 262, which is larger at the top and smaller at the bottom, facilitates the smooth entry of brine shrimp and brine into the rotating drum 21.

[0115] The brine shrimp mixture impacts the outer surface of the upper screen 24 (the side of the screen 24 away from the rotating drum 21 is the outer surface, and the side of the screen 24 closer to the rotating drum 21 is the inner surface). Water and fine impurities flow through the mesh of the screen 24 into the interior of the rotating drum 21, and finally pass through the inner surface of the lower screen 24 (initially facing downwards) and flow out into the waste liquid tank 15. Because the brine shrimp are larger than the mesh, they are intercepted on the outer surface of the upper screen 24. Under the continuous impact of the mixture, the upper screen 24 is subjected to outward pressure, presenting a downward concave arc shape (the inner surface is convex, suitable for the attachment and aggregation of brine shrimp).

[0116] At this time, the screen 24 below only passes through the waste liquid, with no brine shrimp attached. It maintains its natural state under the action of its own rigidity and the gravity of the waste liquid, and stays in contact with the scraper 253 below.

[0117] The scraping process for collecting brine shrimp after rinsing off the salt:

[0118] When the brine shrimp on the outer surface of the upper screen 24 accumulate to a set amount (detectable by a sensor), the valve body is adjusted, and the brine shrimp mixture channel in the feed hopper 13 is closed, allowing clean water to enter the flow pipe. The clean water flows into the rotating drum 21 through the upper feed chamber 262 and discharge chamber 261, rinsing the brine shrimp collected on the outer surface of the upper screen 24 to remove salt (salt is added for brine shrimp hatching). During the rinsing process, the salt adhering to the surface of the brine shrimp is dissolved, and the saltwater flow seeps into the interior of the rotating drum 21 through the mesh of the screen 24. At this time, the lower screen 24 of the rotating drum 21 is still facing downwards, and the saltwater flow flows out from the lower screen 24, collects downwards along the discharge chamber 261 of the lower guide end seat 26, and finally flows out to the waste liquid tank 15, completing the salt removal.

[0119] In the initial state, the movable seat 33 is fitted on the outer surface of the guide rail 32 away from the connecting seat 11, and is located in the breeding pond 1 on the side (rear side) close to the fence 14. When feeding is required, the movable seat 33 is internally driven to move along the guide rail 32 toward the connecting seat 11, that is, toward the rotating drum 21.

[0120] During the movement of the movable seat 33, the connecting frame 35, the feeding port 311, the ratchet 351, the rotating drum 21, and the gear 221 gradually approach each other until the first ratchet 351 on the side of the upper surface of the connecting frame 35 away from the guardrail 14 (front side) meshes with the teeth on the outer surface of the gear 221 (because the rear side of the ratchet 351 is provided with a stop block 353 fixed to the upper surface of the connecting frame 35, under the action of the internal torsion spring 352, the rear side of the ratchet 351 is in contact with the outer surface of the stop block 353 and maintains a vertical state). As the connecting frame 35 continues to move, multiple ratchet 351 gradually mesh with the outer surface of the gear 221 and drive the gear 221 to rotate 180 degrees.

[0121] Since gear 221 is fixedly connected to the coupling sleeve 22 on the outer surface of the rotating drum 21, when gear 221 rotates, it will drive the rotating drum 21 and the coupling sleeve 22 on its outer surface to rotate 180 degrees around the support shaft 23, causing the screen 24 originally located at the top to be located at the bottom, and the screen 24 originally located at the bottom to be located at the top; causing the guide end seat 26 originally located at the top to be located at the bottom, and the guide end seat 26 originally located at the bottom to be located at the top, and the positions of the screen 24 and the guide end seat 26 at the top and bottom ends to be swapped.

[0122] In the initial stage of the rotation of the drum 21, the axis of the drum 21 gradually changes from vertical to inclined. The positions of the upper and lower guide end seats 26 rotate around the axis of the support shaft 23. The sliding seat 272 on its outer surface also gradually deviates from the magnetic block 114. After the distance between the sliding seat 272 and the magnetic block 114 gradually increases, the magnetic force between the sliding seat 272 and the magnetic block 114 is less than the elastic force of the spring 273. The spring 273 unfolds and pushes the sliding seat 272 to slide along the slide groove 263 to the side away from the center of the drum 21. The two sliding seats 272 move in opposite directions. The sliding seat 272 moves the cover plate 27 to the closed state through the connecting rod 271, which isolates the discharge chamber 261 and the feed chamber 262.

[0123] At this time, the filtered brine shrimp are located between the screen 24 and the discharge chamber 261 in a sealed, independent space. As the axis of the rotating drum 21 changes from vertical to horizontal and then back to vertical, the space remains sealed to prevent the shrimp from falling or splashing out during the rotation of the drum 21. The brine shrimp slide down onto the inner wall surface of the guide end seat 26 and the inner surface of the cover plate 27 under the action of gravity.

[0124] After the rotating drum 21 rotates, the reciprocating rod 251 and scraper 253 inside slide within the limiting block 252 under the action of gravity. The scraper 253 at the bottom (originally located at the top and not in contact with the inner surface of the screen 24) slides downward until it contacts the inner surface of the screen 24 below. The lower screen 24 bulges downward due to the downward pushing force of the scraper 253. The scraper 253 at the top no longer contacts the upper surface of the screen 24 at the top (originally located at the bottom and in contact with the inner surface of the screen 24 in the corresponding direction). At this time, the lower surface of the upper scraper 253 contacts the upper surface of the limiting block 252, preventing the lower screen 24 from being damaged due to the excessive weight of the scraper 253 and the reciprocating rod 251.

[0125] After the rotating drum 21 and the guide end seat 26 rotate, the axis of the rotating drum 21 is in a vertical state, and the feed port 311 of the feeding part 3 moves to the bottom of the rotating drum 21. The axis of the feed port 311, the axis of the rotating drum 21 and the axis of the hopper 13 coincide.

[0126] At this time, the sliding seat 272 is once again acted upon by the magnetic block 114, and the two sliding seats 272 move towards each other to compress the spring 273, which in turn pulls the cover plate 27 into the open state via the connecting rod 271. Under the influence of gravity, most of the brine shrimp originally attached to the outer surface of the upper screen 24 (now facing down) fall to the inner surface of the cover plate 27, but some still adhere to the outer surface of the screen 24. At this time, the scraping device 25 starts its operation.

[0127] The telescopic shaft 111 inside the connecting seat 11 reciprocates (the C-shaped block 112 at the outer end of the telescopic shaft 111 limits the thickness of the ring plate 255, restricting the ring plate 255 in the left and right directions; simultaneously, the ring plate 255 can rotate freely with the rotating drum 21). The ring plate 255 drives the toothed rod 254 to slide left and right along the inside of the limiting block 252. The toothed rod 254 meshes with the toothed groove on the outer surface of the reciprocating rod 251, driving the reciprocating rod 251 to rotate around its central axis, simultaneously rotating and scraping away feed from the inner surface of the lower screen 24. The rotation trajectory of the scraper 253 completely covers the inner surface of the screen 24, ensuring that all brine shrimp attached to the outer surface of the screen 24 are scraped off. Compared to the traditional linear scraping method, rotary scraping effectively reduces feed residue and improves collection efficiency.

[0128] Meanwhile, the discharge chamber 261 of the lower guide end seat 26 adopts a conical design with a larger upper part and a smaller lower part. The diameter of the discharge chamber 261 is smallest on the side away from the rotating drum 21 and largest on the side closer to the rotating drum 21. This structure allows the scraped brine shrimp to naturally converge along the inner wall of the discharge chamber 261 under the action of gravity, and then fall smoothly into the feed port 311 of the lower drum 31, completing the collection and transfer of brine shrimp. Finally, the valve body draws clean water from the pipe and enters the upper feed chamber 262, discharge chamber 261, upper screen 24, and the interior of the rotating drum 21 through the water outlet at the bottom of the hopper 13. Finally, the water is flushed from the inner surface of the lower screen 24, and with the rotation of the scraper 253, the brine shrimp adhering to the outer surface of the lower screen 24 are removed, completing the collection and transfer of brine shrimp.

[0129] Artemia larvae are fragile. Scraping them off from the inner surface of the screen 24 avoids direct impact on the outer surface of the screen 24, reduces damage to the artemia larvae's body surface during the scraping process, and ensures the activity of the feed.

[0130] When the screen 24 is at the top, its outer surface intercepts the brine shrimp. At this time, the outer surface of the screen 24 forms a concave shape, and the mesh openings on the side of the screen 24 closest to the brine shrimp (facing upwards) have smaller apertures, effectively intercepting the brine shrimp and preventing them from spreading with the water flow. When the screen 24 is at the bottom, the inner surface of the screen 24 forms a concave shape under the action of the scraper 253, and correspondingly, the outer surface of the screen 24 forms a convex shape. The convex shape of the outer surface of the screen 24 expands the mesh openings on the side closest to the brine shrimp (facing downwards), increasing the aperture of the mesh openings. The brine shrimp that were originally trapped in the mesh openings lose their grip and are more likely to fall off. The rotation trajectory of the scraper 253 can completely cover the inner surface of the screen 24, and with the passive enlargement effect of the mesh openings, it ensures that all brine shrimp attached to the outer surface of the screen 24 and embedded in the mesh openings are scraped off.

[0131] The uniform delivery and feeding process of feeding section 3:

[0132] After the scraped brine shrimp and water enter the machine barrel 31 through the feed inlet 311, the feeding section 3 starts to convey and feed the shrimp.

[0133] The movable seat 33 slides along the guide rail 32 toward the guardrail 14 (rear side). During this process, since the ratchet 351 is provided with a stop block 353 on the rear side and there is no restriction on the front side, when the ratchet 351 passes the outer surface of the gear 221, the torsion spring 352 inside the ratchet 351 is compressed, and the ratchet 351 can rotate around the axis to the left without driving the gear 221 and the rotating drum 21 to rotate. The gear 221 and the rotating drum 21 remain in this state and wait for the feeding part 3 to pick up the feed for the next time.

[0134] The bidirectional spiral blades 34 inside the barrel 31 rotate (driven by a motor), with their left-hand and right-hand blades conveying brine shrimp to both ends of the barrel 31, and finally discharging them from the two feed ports 312 (the feed ports 312 open downwards to ensure that the brine shrimp fall directly into the aquaculture pond 1). The movable seat 33 slides along the guide rail 32, driving the barrel 31 to move above the aquaculture pond 1, so that the discharge range of the two feed ports 312 covers the entire effective space of the aquaculture pond 1 (the space enclosed by the aquaculture pond 1 and the side of the enclosure 14 near the connecting seat 11), achieving uniform feeding.

[0135] When cleaning is required, the valve body of hopper 13 switches to clean water mode, and clean water enters the interior of drum 21 through guide end seat 26. The rotation of drum 21 drives screen 24 to be washed alternately, and scraper 253 repeatedly scrapes the inner surface of screen 24 under the drive of reciprocating rod 251 to remove residual impurities in the mesh; waste liquid is discharged through waste liquid tank 15, completing the cleaning.

[0136] In summary, this feeding equipment has the following advantages in feeding brine shrimp:

[0137] Advantage 1: Compared to existing fixed-volume aquaculture ponds 1, this equipment uses sliding partitions 14 along the inner wall of the pond 1 to divide multiple ponds 1 into flexibly adjustable areas, achieving a match between the volume of a single compartment and the size of the fish fry. When the fish fry density is high, the volume of a single compartment can be increased to avoid exacerbating stress responses and surface injuries caused by high-density crowding, thus reducing the risk of infection and mortality from diseases such as water mold and fin rot. Simultaneously, it balances the ratio of metabolites, uneaten feed, and water, ensuring the water's self-purification capacity, maintaining stable dissolved oxygen levels, and reducing oxygen deficiency, surfacing, or poisoning incidents. When the fish fry density is low, the volume of a single compartment can be reduced, solving the problem of difficulty in observing diseased or weak fry caused by dispersed fry in large volumes, enabling early disease warning, and avoiding missed or wasted feed, thus improving the precision of aquaculture management.

[0138] Advantage 2: Existing equipment often lacks a targeted live feed processing structure. This equipment achieves efficient impurity removal and desalination of the brine shrimp mixture through a dual purification design of pre-filtration in the feed hopper 13 and interception by the rotating drum 21. The first-layer filter inside the feed hopper 13 can pre-intercept brine shrimp eggshells, reducing the burden on subsequent filtration; the screens 24 at both ends of the rotating drum 21 (with pore sizes smaller than brine shrimp larvae) can precisely intercept brine shrimp. At the same time, the valve body controls the switch to the clear water channel to rinse the intercepted brine shrimp with salt, preventing salt from entering the breeding pond 1 and disrupting the salinity balance of the water. The entire purification process requires no manual intervention and avoids the damage to brine shrimp larvae caused by traditional rinsing methods, ensuring feed cleanliness and activity, and reducing the risk of pollution to the aquaculture water.

[0139] Advantage 3: Compared with traditional straight scraping or external surface scraping structures, the scraping component 25 and the screen 24 of this equipment work together to smoothly remove the brine shrimp after impurity removal and desalination.

[0140] First, the screen 24 is made of a flexible material with shape self-adaptation capability. During the interception stage, the screen 24 is positioned above the rotating drum 21 and is concave on the outer surface due to the pressure of the mixed liquid. The aperture of the mesh on the upward side is reduced, which can enhance the interception effect of brine shrimp. During the scraping stage, the screen 24 is convex on the outer surface under the action of the scraper 253 below. The aperture of the mesh on the downward side is enlarged, so that the brine shrimp embedded in the mesh gaps lose the clamping force and are easier to fall off.

[0141] Secondly, the scraper 253 adopts an inner surface rotation scraping method. The rotation trajectory of the scraper 253 can completely cover the inner surface of the screen 24. Combined with the flushing action of clean water from the inside out, it forms a synergistic effect of scraping and rinsing. This not only avoids the direct impact of outer surface scraping on brine shrimp and reduces damage to the body surface of larvae, but also thoroughly removes attached and embedded bait, improving the bait recovery rate compared to the traditional structure.

[0142] Finally, the scraper 253 scrapes the inner surface of the screen 24 with more uniform force, which can reduce the wear and deformation of the screen 24, extend the service life of the screen 24, and reduce equipment maintenance costs.

[0143] Fourthly, when the movable seat 33 of the feeding section 3 moves along the guide rail 32, the ratchet 351 on the connecting frame 35 can drive the gear 221 to rotate the drum 21 180 degrees, realizing the reversal of the screen 24 position. During the rotation of the drum 21, the sliding seat 272 automatically completes the opening and sealing of the channel of the guide end seat 26 through the dynamic balance of magnetic force and spring 273 (when the drum 21 is vertical, the channel of the guide end seat 26 is open, allowing for loading and unloading; when the drum 21 is tilted, the channel of the guide end seat 26 is closed, ensuring that the brine shrimp do not scatter during the rotation process). After the drum 21 is positioned, the telescopic shaft 111 and the scraper 25 work together to start the scraping operation. The scraped brine shrimp fall directly into the feeding section 3 without manual transfer. The entire process achieves seamless connection of filtration, rinsing, rotation, scraping, and feeding, greatly reducing manual intervention, avoiding the reduction of feed activity due to operation delays, and improving operational efficiency.

[0144] Fifthly, addressing the issue of localized feed accumulation in existing equipment, this device employs a combined moving structure of bidirectional spiral conveying and mobile feeding. The bidirectional spiral blades 34 within the cylinder 31 form a symmetrical spiral direction with the central feeding port 311 as the boundary, evenly distributing the brine shrimp to both ends and simultaneously discharging them through the two feeding ports 312. Simultaneously, the moving base 33 drives the entire cylinder 31 along the guide rail 32 above the culture pond 1, ensuring that the discharge range of the feeding ports 312 covers the effective space of the culture pond 1, achieving dynamic and uniform feeding. Furthermore, the feeding amount can be controlled by adjusting the rotation speed of the bidirectional spiral blades 34, combined with the adjusted culture density, to achieve precise feed delivery, further reducing feed waste and lowering culture costs.

[0145] Advantage Six: When cleaning is required, the valve at the bottom of the feed hopper 13 switches to clean water mode, allowing clean water to enter the rotating drum 21. The rotating drum 21 rotates, causing the screen 24 to alternately move to the rinsing position. Driven by the reciprocating rod 251, the scraper 253 repeatedly scrapes the inner surface of the screen 24, removing residual impurities from the mesh. Waste liquid is then discharged through the waste liquid tank 15 below. This cleaning process requires no disassembly of parts, is simple and convenient to operate, and effectively avoids equipment contamination caused by feed residue and spoilage, ensuring the long-term stability of the equipment and the hygiene and safety of the feed.

[0146] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A feeding device for live fish farming using a multi-compartment linkage adjustment structure, characterized in that, include: A breeding pond (1) is fixedly connected to a connecting seat (11) above the breeding pond (1). The connecting seat (11) is connected to a feed hopper (13) through a support frame (12) fixed on its upper surface. The feed hopper (13) stores a mixture of freshly hatched brine shrimp. The filter screen section (2) includes a rotating drum (21). A coupling sleeve (22) is fixedly connected to the outer circumference of the rotating drum (21). A support shaft (23) connected to the outer surface of the connecting seat (11) is rotatably connected to the inner wall surface of the coupling sleeve (22). A screen (24) is provided at the port of the rotating drum (21). A scraper (25) is provided inside the rotating drum (21). Feeding section (3), the feeding section (3) includes a barrel (31), a guide rail (32) is fixedly connected to the upper surface of the breeding pond (1), the barrel (31) is slidably connected to the outer surface of the guide rail (32) through a movable seat (33) fixed on its top, and a bidirectional spiral blade (34) is rotatably connected inside the barrel (31). The scraping component (25) includes a reciprocating rod (251). A limit block (252) is fixedly connected to the inner wall surface of the rotating drum (21) on the outer surface of the reciprocating rod (251). The outer circumferential surface of the reciprocating rod (251) is provided with a toothed groove. A scraper (253) that fits against the inner surface of the screen (24) is fixedly connected to the outer end of the reciprocating rod (251). Two sets of scrapers (253) are provided. The two sets of scrapers (253) are symmetrically distributed with the reciprocating rod (251) as the center. A flow guide end seat (26) is fixedly installed on the outer end of the rotating drum (21). A discharge chamber (261) is opened on the side of the flow guide end seat (26) close to the rotating drum (21). A feed chamber (262) is opened on the side of the flow guide end seat (26) away from the rotating drum (21). The discharge chamber (261) and the feed chamber (262) are connected internally.

2. The live fish farming feeding equipment with a multi-compartment linkage adjustment structure according to claim 1, characterized in that: Multiple breeding ponds (1) are provided. A guardrail (14) is slidably connected to the inner wall surface of the breeding pond (1). A waste liquid tank (15) connected to the inner wall surface of the breeding pond (1) is provided at the bottom of the rotating cylinder (21).

3. The live fish farming feeding equipment with a multi-compartment linkage adjustment structure according to claim 2, characterized in that: The limiting block (252) has a toothed rod (254) that meshes with the inner wall surface of the tooth groove. The outer end of the toothed rod (254) passes through the rotating cylinder (21) and is fixedly connected to a ring plate (255).

4. The live fish farming feeding equipment with a multi-compartment linkage adjustment structure according to claim 1, characterized in that: A cover plate (27) is slidably connected at the junction of the discharge chamber (261) and the feed chamber (262). A groove (263) is provided on the outer surface of the guide end seat (26). A connecting rod (271) is rotatably connected to the outer surface of the cover plate (27). A sliding seat (272) that fits against the inner wall surface of the groove (263) is rotatably connected to the end of the connecting rod (271) away from the cover plate (27). A spring (273) that connects to the outer surface of the sliding seat (272) is provided on the inner wall surface of the groove (263).

5. A live fish farming feeding device with a multi-compartment linkage adjustment structure as described in claim 1, characterized in that: A gear (221) is fixedly connected to the outer surface of the coupling sleeve (22), and a connecting frame (35) is fixedly connected to the upper surface of the movable seat (33). The connecting frame (35) is rotatably connected to a ratchet (351) that meshes with the outer surface of the gear (221) via a rotating shaft located inside it. A torsion spring (352) connected to the inside of the ratchet (351) is sleeved on the outer surface of the rotating shaft. A stop block (353) is fixedly connected to the upper surface of the connecting frame (35).

6. A live fish farming feeding device with a multi-compartment linkage adjustment structure according to claim 4, characterized in that: A telescopic shaft (111) is internally connected to one of the connecting seats (11) near the ring plate (255). The outer end of the telescopic shaft (111) is fixedly connected to a C-shaped block (112) that fits against the outer surface of the ring plate (255). A bracket (113) is fixedly connected to the outer surface of one of the connecting seats (11) near the sliding seat (272). A magnetic block (114) is embedded inside the bracket (113). The outer surface of the sliding seat (272) is magnetically connected to the outer surface of the magnetic block (114).

7. A live fish farming feeding device with a multi-compartment linkage adjustment structure according to claim 1, characterized in that: The middle part of the barrel (31) is fixedly connected to the feed port (311), and the outer end of the barrel (31) is provided with a discharge port (312), and there are two discharge ports (312).

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