A device for releasing seedlings for aquaculture

Abstract

The application relates to the aquaculture technical field and provides a fry feeding device for aquaculture, which comprises a bottom plate, a supporting frame is fixed at the top end of the bottom plate, a dispersing mechanism is arranged at the top end of the supporting frame, feeding mechanisms are arranged at the two sides of the top end of the bottom plate; a hydraulic rod is fixed at the inner top end of an inner cylinder, a pressing plate is fixed at the output end of the hydraulic rod, air supply bins are fixed at the two sides of the bottom end of the fry bin, baffle plates are slidably arranged on the air supply bins, the air supply bins are communicated with the inner cylinder through air supply pipes I, a hole bin is fixed at the inner bottom end of the fry bin, and an air supply pipe II is fixed in the hole bin. The dispersing mechanism can attract part of the fry by utilizing the oxygen content difference in water bodies when the fry is fed in batches, so that the feeding quantity of each round of fry is relatively uniformly controlled, and the normal feeding effect is prevented from being affected by the over-concentration or scarcity of the fry during single feeding.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, specifically to a seedling delivery device for aquaculture. Background Technology

[0002] In aquaculture, it is necessary to regularly introduce juvenile fish, shellfish, and crustaceans into the aquaculture pond to replenish the number of aquatic organisms in the pond, thereby achieving a scientific stocking density, ensuring the normal productivity of the aquaculture pond, and improving the overall aquaculture efficiency.

[0003] However, since the temperature, salinity, pH value and oxygen content of the water in the breeding pond may be different from the water in which the fry originally lived, the fry may experience stress when being released. In addition, for a large number of fry, it is often necessary to release them in batches. However, due to the uncertainty of the fry's swimming, there may be situations where the fry are too crowded or too sparse when releasing them in batches. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a seedling release device for aquaculture, which solves the problems of stimulation of fish fry by differences in water quality and uneven distribution of fish fry during batch release.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a seedling release device for aquaculture, comprising a base plate, a support frame fixed at the top of the base plate, a dispersing mechanism at the top of the support frame, and release mechanisms on both sides of the top of the base plate;

[0006] The dispersing mechanism includes a fry bin, the bottom of which is fixed to the top of a support frame. An inner cylinder is provided inside the fry bin, and a hydraulic rod is fixed to the top of the inner cylinder. A pressure plate is fixed to the output end of the hydraulic rod. Air supply bins are fixed on both sides of the bottom of the fry bin. A baffle is slidably provided on the side of the air supply bins that are close to each other. Both sides of the air supply bins are connected to the inner cylinder through an air supply pipe. A perforated bin is fixed to the bottom of the fry bin, and an air supply pipe is fixed inside the perforated bin. The top of the air supply pipe is fixed to the bottom of the inner cylinder.

[0007] Preferably, a raft is fixed to the front and rear of the bottom end of the base plate, a one-way valve is fixed to the bottom of the air supply chambers on both sides, the one-way valves on both sides are fixed to the bottom of the outer side of the air supply pipe, and a one-way valve is fixed to the outer side of the bottom end of the air supply pipe.

[0008] Preferably, a spring is fixed to the bottom of the inner cylinder, a disc is fixed to the top of the spring, movable rods are fixed to both sides of the bottom of the disc, the bottom ends of the movable rods on both sides penetrate the inner cylinder and rotate with a rotating plate, the bottom ends of the rotating plates on both sides rotate with a cover plate, and the bottom ends of the cover plates on both sides slide on the bottom of the fish fry compartment.

[0009] Preferably, perforated plates are fixed to the lower part of the air supply chambers on both sides, and guide rods are fixed to the front and rear sides of the top of the baffles on both sides. Guide frames slide on the outer sides of the multiple guide rods, and the guide frames on both sides are fixed to the front and rear parts of the air supply chambers on the side that is close to each other on the opposite side.

[0010] Preferably, the outer side of the pressure plate slides inside the inner cylinder, a cross is fixed to the outer side of the inner cylinder, and the outer side of the cross is fixed inside the fish fry tank.

[0011] Preferably, the dispensing mechanism includes a box, the bottom of which is fixed to the top of the bottom plate on both sides. Dispensing ports are provided on the front and rear sides of both ends of the box. Movable frames slide on the front and rear sides inside the box. U-shaped frames are fixed in the middle of the front and rear ends of the box. Servo motors are fixed on the side of the U-shaped frames away from the box. The output ends of the servo motors pass through the U-shaped frames and are fixed with incomplete gears. Toothed plates mesh on the outer sides of the incomplete gears. Horizontal plates are fixed on both sides of the toothed plates. Water supply boxes are fixed at the top of the horizontal plates. Water storage tanks slide on the side of the water supply boxes away from the U-shaped frames. Sliding plates slide inside the water storage tanks. Push rods are fixed at the bottom of the sliding plates. Push plates rotatably pass through the water storage tanks and are mounted on push plates. The bottom ends of push plates rotate on both sides of the bottom of the movable frames. Water inlets are provided on the upper front and rear sides of the box. Water inlets are provided on the side of the water storage tanks near the U-shaped frames.

[0012] Preferably, the incomplete gears on the front and rear sides rotate on the side opposite to the front and rear sides of the U-shaped frame, and the toothed plates on the front and rear sides slide on the side opposite to the front and rear sides of the U-shaped frame.

[0013] Preferably, blocks are fixed to the front and rear sides of the interior of the two sides of the box, and a sealing chamber is fixed to the side of the multiple U-shaped frames away from the box. The servo motors are located inside the sealing chambers, and the water storage chambers on the front and rear sides are fixed to the front and rear ends of the two sides of the box respectively.

[0014] Preferably, a guide chamber is fixed on the side of the gas supply chambers on both sides that are close to each other, a vertical plate is fixed at the bottom of the baffles on both sides, the bottom of the vertical plate on both sides passes through the guide chamber, and a push plate 2 is rotated on the side of the top of the movable frame on both sides that are far apart, with the top of the push plate 2 rotating on the front and back sides of the bottom of the vertical plate on both sides respectively.

[0015] Preferably, inclined plates slide on the lower part of the guide compartments on both sides, and limit frames are fixed on the upper part of the movable frames on both sides. Each of the limit frames has a push plate three rotating inside, and each of the push plates three has a roller rotating on its top. Each of the push plates three has a counterweight fixed on its side near the movable frame.

[0016] This invention provides a seedling dispensing device for aquaculture. It has the following beneficial effects:

[0017] 1. The present invention, through the setting of the dispersion mechanism, can attract some fish fry by taking advantage of the difference in oxygen content in the water when releasing them in batches, thereby controlling the number of fish fry released in each round relatively evenly and preventing the normal release effect from being affected by the fish fry being too concentrated or too sparse in a single release.

[0018] 2. The present invention allows each batch of fish fry to gradually come into contact with the water in the breeding pond through the setting of the release mechanism, so that the fish fry can adapt to the water temperature and water quality of the breeding pond and avoid obvious stress reaction of fish fry due to excessive water difference. At the same time, after the fish fry have adapted for a certain period of time, the water level difference between the box and the breeding pond and the movement of the movable frame can be used to smoothly send the fish fry into the breeding pond, reducing the possibility of fish fry being injured during release. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the front structure of the present invention;

[0020] Figure 2 This is a side sectional view of the present invention;

[0021] Figure 3 This is a cross-sectional schematic diagram of the inner cylinder connection structure of the present invention;

[0022] Figure 4 This is a cross-sectional schematic diagram of the gas supply chamber connection structure of the present invention;

[0023] Figure 5 This is a cross-sectional schematic diagram of the box connection structure of the present invention;

[0024] Figure 6 This is a cross-sectional schematic diagram of the movable frame connection structure of the present invention;

[0025] Figure 7 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A;

[0026] Figure 8 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B;

[0027] Figure 9 For the present invention Figure 5 A magnified schematic diagram of the structure at point C.

[0028] The components include: 1. Base plate; 2. Support frame; 3. Dispersion mechanism; 301. Fish fry bin; 302. Inner cylinder; 303. Hydraulic rod; 304. Pressure plate; 305. Cross; 306. Air supply bin; 307. Baffle; 308. Air supply pipe one; 309. Perforated bin; 310. Air supply pipe two; 311. One-way valve one; 312. One-way valve two; 313. Spring; 314. Disc; 315. Movable rod; 316. Turning plate; 317. Sheath; 318. Perforated plate; 319. Guide rod; 320. Guide frame; 4. Dispensing mechanism; 401. Box body; 40 2. Discharge port; 403. Movable frame; 404. U-shaped frame; 405. Servo motor; 406. Incomplete gear; 407. Toothed plate; 408. Horizontal plate; 409. Water supply box; 410. Water storage tank; 411. Slide plate; 412. Push rod; 413. Push plate one; 414. Water inlet one; 415. Water inlet two; 416. Stop block; 417. Sealing chamber; 418. Guide chamber; 419. Vertical plate; 420. Push plate two; 421. Inclined plate; 422. Limiting frame; 423. Push plate three; 424. Roller; 425. Counterweight; 5. Float. Detailed Implementation

[0029] The technical solutions in 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 embodiments of the present invention, and 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 scope of protection of the present invention.

[0030] Please see the appendix Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 7 This invention provides a seedling dispensing device for aquaculture, including a base plate 1, a support frame 2 fixed to the top of the base plate 1, a dispersing mechanism 3 provided at the top of the support frame 2, and dispensing mechanisms 4 provided on both sides of the top of the base plate 1.

[0031] The dispersing mechanism 3 includes a fry bin 301, the bottom of which is fixed to the top of the support frame 2. An inner cylinder 302 is provided inside the fry bin 301. A hydraulic rod 303 is fixed to the top of the inner cylinder 302. A pressure plate 304 is fixed to the output end of the hydraulic rod 303. Air supply chambers 306 are fixed on both sides of the bottom of the fry bin 301. A baffle 307 slides on the side of the air supply chambers 306 that are close to each other. Both sides of the air supply chambers 306 are connected to the inner cylinder 302 through an air supply pipe 308. A perforated chamber 309 is fixed to the bottom of the fry bin 301. An air supply pipe 310 is fixed inside the perforated chamber 309. The top of the air supply pipe 310 is fixed to the bottom of the inner cylinder 302.

[0032] The support frame 2 provides fixation for the fry bin 301, preventing it from falling and causing the fry to directly enter the rearing pond. After the fry are poured into the area between the fry bin 301 and the inner cylinder 302, the hydraulic rod 303 pushes the pressure plate 304 downwards. This, combined with the electrically controlled valve on the surface of the pressure plate 304, forces the air below the pressure plate 304 into the first air supply pipe 308 and the second air supply pipe 310. Air moving along the first air supply pipe 308 enters the air supply chamber 306, while air moving along the second air supply pipe 310 enters the perforated chamber 309. Therefore, as the pressure plate 304 gradually moves downwards, the air supply chamber 306 and the perforated chamber 309... Bubbles can continuously appear in area 9 for a certain period of time, thereby increasing the oxygen content of the water in the areas of air supply chamber 306 and hole chamber 309. This further attracts fish fry that were originally swimming aimlessly in fry chamber 301 to move closer to the areas of air supply chamber 306 and hole chamber 309. Since the area of ​​air supply chamber 306 is relatively small, it can attract and accommodate relatively few fish fry. In summary, when a large number of fish fry need to be released in batches, the number of fish fry released in each round can be kept relatively uniform, preventing the situation where the air supply chamber 306 is overcrowded due to the small number of fish fry entering in the early stage, as the water in the fry chamber 301 decreases later.

[0033] Please see the appendix Figure 4 and attached Figure 7 A floating raft 5 is fixed at the front and rear of the bottom end of the base plate 1. A one-way valve 311 is fixed at the bottom of the air supply chambers 306 on both sides. The one-way valve 311 on both sides is fixed inside the bottom of the outer side of the air supply pipe 308. A one-way valve 312 is fixed at the outer side of the bottom end of the air supply pipe 310.

[0034] The raft 5 and related chains allow the bottom plate 1 and connected components to be positioned in a certain area of ​​the aquaculture pond, ensuring that a portion of the feeding mechanism 4 is always submerged in water. This prevents the feeding mechanism 4 from being unable to effectively supply water from the aquaculture pond to the fish fry. One-way valve 311 and one-way valve 312 prevent water from entering the inner cylinder 302 through the air supply pipe 308 and the air supply pipe 310, respectively. At the same time, one-way valve 311 and one-way valve 312 are at the same horizontal level to avoid the air below the pressure plate 304 being unable to be discharged simultaneously through the air supply pipe 308 and the air supply pipe 310 due to the pressure difference.

[0035] Please see the appendix Figure 3 A spring 313 is fixed to the bottom of the inner cylinder 302. A disc 314 is fixed to the top of the spring 313. Movable rods 315 are fixed to both sides of the bottom of the disc 314. The bottom ends of the movable rods 315 on both sides pass through the inner cylinder 302 and rotate with a rotating plate 316. The bottom ends of the rotating plates 316 on both sides rotate with a cover plate 317. The bottom ends of the cover plates 317 on both sides slide on the bottom of the fish fry bin 301.

[0036] Spring 313 can move disc 314 upward a certain distance, and then movable rod 315 can rotate rotating plate 316, causing cover plate 317 to move closer to each other along fry chamber 301. Conversely, when hydraulic rod 303 drives pressure plate 304 to slowly move downward a certain distance, pressure plate 304 can contact disc 314. At this time, under the continued push of hydraulic rod 303, movable rod 315 and rotating plate 316 can move in opposite directions, causing cover plate 317 to gradually block the connection between air supply chamber 306 and fry chamber 301. At this time, some fry attracted to air supply chamber 306 by the increase in oxygen content can be isolated outside fry chamber 301, preventing these fry from swimming back into fry chamber 301 when subsequently acted upon by release mechanism 4.

[0037] Please see the appendix Figure 3 and attached Figure 8 Both sides of the gas supply chamber 306 have perforated plates 318 fixed in the lower part, and both sides of the baffle 307 have guide rods 319 fixed at the front and rear sides of the top. Multiple guide rods 319 have guide frames 320 sliding on their outer sides. The guide frames 320 on both sides are fixed at the front and rear of the gas supply chambers 306 on the side away from each other.

[0038] The perforated plate 318 can more finely divide the air bubbles entering the air supply chamber 306, thereby further increasing the oxygen content of the water. At the same time, it can also prevent fish fry from entering the air supply pipe 308. In addition, the guide rod 319 and guide frame 320 can restrict the movement direction of the baffle 307, preventing the baffle 307 from tilting or shifting horizontally and failing to effectively block the water and fish fry inside the air supply chamber 306.

[0039] Please see the appendix Figure 3 The outer side of the pressure plate 304 slides inside the inner cylinder 302, and the outer side of the inner cylinder 302 is fixed with a cross 305, which is fixed inside the fish fry bin 301.

[0040] Through the contact between the pressure plate 304 and the inner cylinder 302 and the related sealing rings, it can be ensured that the air below the pressure plate 304 cannot leak out along the contact surface between the pressure plate 304 and the inner cylinder 302 when the pressure plate 304 moves down. At the same time, when the pressure plate 304 moves up with the hydraulic rod 303, the electronically controlled valve on the surface of the pressure plate 304 can be actively opened to replenish the air in the area below the pressure plate 304. In addition, the cross 305 can effectively fix the inner cylinder 302 to prevent the water inside the fish fry tank 301 from entering the inner cylinder 302 when the inner cylinder 302 moves down.

[0041] Please see the appendix Figure 2 Appendix Figure 4 Appendix Figure 5 Appendix Figure 6 and attached Figure 9The dispensing mechanism 4 includes a housing 401, the bottom of which is fixed to the top of the base plate 1 on both sides. Dispensing ports 402 are provided on the front and rear sides of both ends of the housing 401. Movable frames 403 slide inside the front and rear sides of both housings 401. U-shaped frames 404 are fixed to the middle of the front and rear ends of both housings 401. Servo motors 405 are fixed to the side of each U-shaped frame 404 away from the housing 401. The output ends of each servo motor 405 pass through the U-shaped frame 404 and are fixed with incomplete gears 406. Toothed plates 407 mesh with the outer sides of each incomplete gear 406. Horizontal crossbeams are fixed to both sides of each toothed plate 407. Each of the multiple horizontal plates 408 has a water supply box 409 fixed at its top. Each of the multiple water supply boxes 409 has a water storage tank 410 sliding at the end away from the U-shaped frame 404. Each of the multiple water storage tanks 410 has a sliding plate 411 sliding inside. Each of the multiple sliding plates 411 has a push rod 412 fixed at its bottom. Each of the multiple push rods 412 has a push plate 413 rotating through the water storage tank 410. The bottom of each push plate 413 rotates on both sides of the bottom of the movable frame 403. Each of the two side boxes 401 has a water inlet 414 on its upper front and rear sides. Each of the multiple water storage tanks 410 has a water inlet 415 on the side near the U-shaped frame 404.

[0042] The base plate 1 provides fixation for the tank 401, allowing the lower part of the tank 401 to be below the water surface of the aquaculture pond with the assistance of the raft 5. At this time, the servo motor 405 activates, causing the incomplete gear 406 to rotate unidirectionally. Since only a portion of the outer side of the incomplete gear 406 has protruding teeth, and both sides of the toothed plate 407 have protruding teeth that mesh with it, the toothed plate 407 can reciprocate linearly when the incomplete gear 406 rotates. When the toothed plate 407 moves downwards, the water supply box 409 moves synchronously via the cross plate 408. When the toothed plate 407 reaches its extreme position, the water supply box 409 is submerged in water. As the toothed plate 407 moves upwards, the water supply box 409 and the tank 401... The water storage tank 410 is in contact with the tank 401, so with the cooperation of the tank 401 and the water storage tank 410, a small amount of water from the aquaculture pond can be carried upwards until the water supply box 409 moves to the area where the first water inlet 414 and the second water inlet 415 are located. At this time, the water from the aquaculture pond can enter the tank 401 and the water storage tank 410 respectively through the pre-set openings on the surface of the water supply box 409 along the first water inlet 414 and the second water inlet 415. As the servo motor 405 moves continuously, the water from the aquaculture pond that flows into the tank 401 multiple times can gradually change the temperature and water quality of the water transferred from the air supply chamber 306 to the tank 401, thereby reducing the possibility of stress reaction in the fish fry after subsequent release. At the same time as the water level in the tank 401 rises, Water entering the storage tank 410 through inlet 2 415 exerts a pushing force on the sliding plate 411. When the water above the sliding plate 411 accumulates to a certain amount, the pushing force exerted by the sliding plate 411 on the lightweight movable frame 403 through the push rod 412 and push plate 1 413 can be greater than the resistance of the water in the tank 401 to the movable frame 403. At this time, the movable frames 403 on the front and rear sides can move closer to their respective delivery ports 402 along the tank 401 as the push plate 1 413 rotates. When the areas on both sides of the movable frame 403 are separated from the delivery port 402 by a gap, the water inside the tank 401 that is higher than the water level of the aquaculture pond no longer obstructs the movement of the movable frame 403. Therefore, the movable frames 403 on the front and rear sides can move further apart at an accelerated pace, and with the help of the water height difference... The majority of fish fry and water are pushed out of the container 401 through the release port 402 in a short time, so that the fish fry can complete the release cycle on their own after adapting to the water quality and temperature of the breeding pond. The push of the movable frame 403 can reduce the probability of injury to the fish fry during release. At the same time, as the slide plate 411 moves down to the gap in the lower area of ​​the water storage tank 410, the water above the slide plate 411 can be quickly discharged through the gap. Then, after the slide plate 411, push rod 412, and push plate 413 lose external force, the movable frame 403 can be pushed closer together by the water in the breeding pond through the release port 402. This allows the push plate 413, push rod 412, and slide plate 411 to return, thus preparing for the next round of release.Furthermore, the actual internal volume of the water storage tank 410 needs to be determined based on the resistance exerted by the water inside the tank 401 when it moves. This ensures that the sliding plate 411, push plate 413, etc., can push the movable frame 403 to move under the action of the water inside the water storage tank 410. Also, since only a portion of the tank 401 is submerged in water, and the air supply chamber 306 and water supply box 409 have limited volumes, the water content inside the tank 401 is relatively limited during deployment to avoid situations where push plate 413 cannot push the movable frame 403 to move.

[0043] Please see the appendix Figure 9 The incomplete gears 406 on the front and rear sides rotate on the side away from each other and the U-shaped frame 404 on the front and rear sides close to each other respectively. The toothed plates 407 on the front and rear sides slide on the side away from each other and the U-shaped frame 404 on the side close to each other respectively.

[0044] The U-shaped bracket 404 can limit and guide the incomplete gear 406 and the toothed plate 407 to prevent them from shifting during movement and affecting their normal use.

[0045] Please see the appendix Figure 6 and attached Figure 9 Both sides of the box 401 have blocks 416 fixed inside the front and rear sides. Multiple U-shaped frames 404 have sealing chambers 417 fixed on the side away from the box 401. Servo motors 405 are located inside the sealing chambers 417. The front and rear water storage chambers 410 are fixed on the front and rear ends of the two sides of the box 401 respectively.

[0046] The stop block 416 prevents the front and rear movable frames 403 from directly contacting the inner front or inner rear wall of the box 401 when they approach the respective delivery ports 402, thereby preventing the aquaculture pond water from entering the area between the U-shaped movable frame 403 and the box 401. This also prevents the movable frame 403 from failing to return to its initial position. The sealing chamber 417 can shield the servo motor 405 to prevent it from being damaged after contacting the water. In addition, the box 401 can provide fixation for the water storage tank 410 to ensure that the connected slide plate 411, push rod 412, etc. can work normally.

[0047] Please see the appendix Figure 5 Appendix Figure 7 and attached Figure 8 Both sides of the gas supply chamber 306 have a guide chamber 418 fixed on the side closest to the outside. Both sides of the baffle 307 have a vertical plate 419 fixed at the bottom. The bottom of both sides of the vertical plate 419 passes through the guide chamber 418. Both sides of the movable frame 403 have a push plate 420 rotating on the side furthest from the top. The top of the push plate 420 rotates on the front and back sides of the bottom of the vertical plate 419 on both sides.

[0048] When the movable frame 403 moves away from each other, the push plate 420 rotates, causing the upright plate 419 to move down along the guide chamber 418, which in turn causes the baffle 307 to move synchronously, so as not to block the connection between the air supply chamber 306 and the guide chamber 418. In conjunction with the inclined perforated plate 318, the fish fry isolated inside the air supply chamber 306 can enter the guide chamber 418 with the water, and be transferred to the box 401 later. At the same time, when the movable frame 403 returns, the push plate 420, the upright plate 419 and the baffle 307 can return to their initial positions, so as to attract some fish fry back into the air supply chamber 306 in conjunction with the dispersing mechanism 3.

[0049] Please see the appendix Figure 6 and attached Figure 8 Both sides of the guide compartment 418 have slidable inclined plates 421 on the lower side of the guide compartment 418. Both sides of the movable frame 403 have fixed limit frames 422 on the upper side of the movable frame 403. Each of the multiple limit frames 422 has a rotating push plate 423 inside. Each of the multiple push plates 423 has a rotating roller 424 on the top. Each of the multiple push plates 423 has a counterweight 425 fixed on the side of the movable frame 403.

[0050] The guide chamber 418 can limit and guide the inclined plate 421. When the movable frames 403 move away from each other, the push plate 423 moves synchronously with the movable frame 403 through the limiting frame 422. Therefore, the inclined push plate 423 can rotate a certain angle under the action of gravity and be blocked by the limiting frame 422. At this time, the inclined plate 421 can also move down along the guide chamber 418 under the action of gravity and block the water outlet at the bottom of the guide chamber 418. This works in conjunction with the push plate 420, the upright plate 419 and the baffle 307 to temporarily block the fish fry and water inside the air supply chamber 306 in the guide chamber 418. As the water in the breeding pond pushes the movable frame 403 back, the push plates 423 on the front and rear sides can move ahead of the movable frame 403. The movable frame 403 contacts and rotates upward, and with the help of the roller 424, it can push the inclined plate 421 upward relatively smoothly. As the movable frames 403 on the front and rear sides contact each other, the fish fry and water in the guide chamber 418 can also fall into the box 401 through the outlet left after the inclined plate 421 moves upward, thus completing the process of transferring the fish fry from the fish fry chamber 301 to the box 401 in batches to carry out the process of adapting to water quality and water temperature. In addition, the counterweight block 425 can increase the weight on one side of the push plate 3 423 to prevent the push plate 3 423 from accidentally rotating to a vertical state and causing the inclined plate 421 to be unable to move downward. In addition, with the small amount of aquaculture pond water flowing into the box 401, the fish fry can be prevented from being injured when entering the box 401.

[0051] Working Principle: During use, a large quantity of fish fry to be released is poured into the space between the fry tank 301 and the inner cylinder 302. Then, the hydraulic rod 303 is activated. The pressure plate 304 moves downwards, and the electrically controlled valves on its surface gradually compress the air below the pressure plate 304, causing it to flow along the first air supply pipe 308 and the second air supply pipe 310. After passing through the first check valve 311 and the second check valve 312, the air enters the air supply chamber 306 and the perforated chamber 309, forming bubbles. The perforated plate 318 and the holes on the surface of the perforated chamber 309 break these bubbles into smaller bubbles, thereby increasing the oxygen content of the water in the area of ​​the air supply chamber 306 and the perforated chamber 309. This attracts the fish fry swimming in the fry tank 301 to the vicinity of the air supply chamber 306 and the perforated chamber 309. As the hydraulic rod 303 continues to move downwards, the movable rod 315 moves along with the pressure plate 304 after it contacts the disc 314. Since the length of the rotating plate 316 remains constant, it can rotate to push the baffle 317 to gradually move along the fry chamber 301 to above the air supply chamber 306, thus separating the air supply chamber 306 from the fry chamber 301. This ensures that when the baffle 307 moves downwards, the fry in the air supply chamber 306 can enter the guide chamber 418 with the water. The remaining fry in the fry chamber 301 will be partially separated and enter the air supply chamber 306 again when the hydraulic rod 303, pressure plate 304, and baffle 317 move in the next round. This ensures that the number of fry released in each round is relatively uniform and prevents the occurrence of single-release fry. In cases of too many or too few seedlings, the servo motor 405 can rotate the incomplete gear 406, which, in conjunction with the U-shaped frame 404, allows the toothed plate 407 to perform vertical reciprocating linear motion. This continuously passes through the horizontal plate 408, submerging the water supply box 409 in the water to hold the water in the aquaculture pond. As the toothed plate 407 moves upward, the water supply box 409 can pour water from the aquaculture pond into the tank 401 and the storage tank 410 through its surface openings via inlet 414 and inlet 415, respectively. The water flowing into the storage tank 410 can exert a pushing force on the sliding plate 411, causing the sliding plate 411 to push the push plate 413 to rotate via the push rod 412. Simultaneously, as the push plate 413 rotates, it can exert a pushing force on the movable frame 403, causing... The movable frame 403 moves outward along the box 401. As the movable frame 403 approaches the inlet 402, due to the slots on both sides of the movable frame 403, it no longer completely blocks the inlet 402. The water in the aquaculture pond that has submerged the lower part of the box 401 can flow into the box 401 through the gap between the inlet 402 and the movable frame 403. The inflowing water in the aquaculture pond can push the movable frame 403 to overcome the thrust exerted by the push plate 413 and the sliding plate 411 and return it to its initial position. During the reciprocating motion of the movable frame 403, when the front and rear movable frames 403 move away from each other, the push plate 420 connected to the movable frame 403 can rotate and drive the baffle 307 to move downward through the upright plate 419.At this time, the fish fry and water isolated in the air supply chamber 306 can flow into the guide chamber 418 through the channel exposed after the baffle 307 moves. At the same time, the limiting frame 422 connected to the movable frame 403 can drive the push plate 423 and the roller 424 to move away from each other. Therefore, the unsupported inclined plate 421 can move down along the guide chamber 418 and block the water outlet at the bottom of the guide chamber 418, achieving the purpose of transferring and temporarily trapping the fish fry in the guide chamber 418. Conversely, as the movable frames 403 approach and contact each other, the push plate 420 and the push plate 423 can reverse and cause the baffle 307 and the inclined plate 421 to move up. At this time, the fish fry and water inside the guide chamber 418 can fall into the box 401 containing a small amount of aquaculture pond water through the water outlet. And with the continuous movement of the servo motor 405, the incomplete gear 406 and the toothed plate 407, etc., the aquaculture pond water is further transported to the box 401 containing a small amount of aquaculture pond water. Water from the rearing pond can be intermittently added to the tank 401 to allow the fish fry to gradually adapt to the water temperature and quality of the rearing pond, preventing stress caused by large differences in water temperature and quality. Since the water inside the tank 401 can partially impede the movement of the movable frame 403, with repeated movements of the water supply box 409, the water accumulated above the slide plate 411 can exert sufficient force on the push rod 412 through the slide plate 411. This allows the lightweight movable frame 403 to overcome the resistance exerted by the water inside the tank 401 and move. Because the water level inside the tank 401 is higher than the water level in the rearing pond, when the movable frame 403 passes through its surface slot and misaligns with the release port 402 again, most of the fish fry inside the tank 401 can leave the tank 401 with the water under the push of the movable frame 403, achieving a stable release of fish fry.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seedling dispensing device for aquaculture, comprising a base plate, characterized in that, A support frame is fixed at the top of the base plate, a dispersing mechanism is installed at the top of the support frame, and a dispensing mechanism is installed on both sides of the top of the base plate; The dispersing mechanism includes a fry bin, the bottom of which is fixed to the top of a support frame. An inner cylinder is installed inside the fry bin, and a hydraulic rod is fixed to the top of the inner cylinder. A pressure plate is fixed to the output end of the hydraulic rod. Air supply bins are fixed on both sides of the bottom of the fry bin. A baffle is slidably installed on the side of the air supply bins that are close to each other. Both air supply bins are connected to the inner cylinder through an air supply pipe. A perforated bin is fixed to the bottom of the fry bin, and an air supply pipe is fixed inside the perforated bin. The top of the air supply pipe is fixed to the bottom of the inner cylinder. The dispensing mechanism includes a box, with the bottom of the box fixed to both sides of the top of the base plate. Dispensing ports are opened on the front and rear sides of both sides of the box. Movable frames slide inside the front and rear sides of both sides of the box. U-shaped frames are fixed in the middle of the front and rear ends of both sides of the box. Servo motors are fixed on the side of the U-shaped frames away from the box. The output ends of the servo motors pass through the U-shaped frames and are fixed with incomplete gears. Toothed plates mesh on the outside of the incomplete gears. Horizontal plates are fixed on both sides of the toothed plates. Water supply boxes are fixed at the top of the horizontal plates. Water storage tanks slide on the side of the water supply boxes away from the U-shaped frames. Slide plates slide inside the water storage tanks. Push rods are fixed at the bottom of the slide plates. Push plates rotatably pass through the water storage tanks and are mounted on push plates. The bottom of push plates rotates on both sides of the bottom of the movable frames. Water inlets are opened on the upper front and rear sides of both sides of the box. Water inlets are opened on the side of the water storage tanks near the U-shaped frames. The incomplete gears on the front and rear sides rotate on the side away from each other and on the side close to each other on the front and rear U-shaped frames, respectively; the toothed plates on the front and rear sides slide on the side away from each other and on the side close to each other on the front and rear U-shaped frames, respectively. Both sides of the box are fixed with blocks inside the front and rear sides. Multiple U-shaped frames are fixed with sealed chambers on the side away from the box. Servo motors are located inside the sealed chambers. The water storage chambers on the front and rear sides are fixed to the front and rear ends of the two sides of the box respectively. Both sides of the gas supply chamber are fixed with a guide chamber on the side closest to each other. Both sides of the baffle are fixed with a vertical plate at the bottom. Both sides of the vertical plate have a guide chamber through the bottom. Both sides of the movable frame have a push plate 2 rotating on the side furthest from each other at the top. The top of the push plate 2 rotates on the front and back sides of the bottom of the vertical plate on both sides respectively. Both sides of the guide compartment have sliding inclined plates on the lower side of the inner side, and both sides of the movable frame have fixed limit frames on the upper side of the inner side. Each of the multiple limit frames has a rotating push plate three inside, and each of the multiple push plates three has a rotating roller on its top. Each of the multiple push plates three has a counterweight fixed on the side of the movable frame.

2. A seedling dispensing device for aquaculture according to claim 1, characterized in that, A floating raft is fixed at the front and rear of the bottom of the base plate. One-way valve 1 is fixed at the bottom of the air supply chambers on both sides. The inside of one-way valve 1 on both sides is fixed at the bottom of the outer side of air supply pipe 1. One-way valve 2 is fixed at the outer side of the bottom of air supply pipe 2.

3. A seedling dispensing device for aquaculture according to claim 1, characterized in that, A spring is fixed to the bottom of the inner cylinder, and a disc is fixed to the top of the spring. Movable rods are fixed to both sides of the bottom of the disc. The bottom of the movable rods on both sides passes through the inner cylinder and rotates with a rotating plate. The bottom of the rotating plate on both sides rotates with a cover plate. The bottom of the cover plate on both sides slides at the bottom of the fish fry compartment.

4. A seedling dispensing device for aquaculture according to claim 1, characterized in that, Both sides of the gas supply chamber have perforated plates fixed in the lower part, and both sides of the baffle top have guide rods fixed in the front and back. Multiple guide rods have guide frames sliding on their outer sides. The guide frames on both sides are fixed to the front and back of the side of the gas supply chamber that is close to each other on the opposite side.

5. A seedling dispensing device for aquaculture according to claim 1, characterized in that, The outer side of the pressure plate slides inside the inner cylinder, and a cross is fixed to the outer side of the inner cylinder. The outer side of the cross is fixed inside the fish fry tank.

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