Efficient culture device for crayfish breeding

Abstract

The invention belongs to the technical field of crayfish breeding, and discloses an efficient culture device for crayfish breeding, which comprises a culture box, a sunshade mechanism fixed at the top end of the culture box, a rainwater recycling mechanism mounted at one end of the culture box, and a feeding mechanism fixed at the top end of the culture box, through cooperation of the mounting table, the first servo motor, the first sun shield and other structures, the device can isolate sunlight through the first sun shield, the second sun shield, the first baffle and the second baffle at the top end of the culture box, the water temperature in the culture box is reduced, the strong stress reaction of crayfish seedlings due to high temperature is avoided, and the survival rate of crayfish seedlings is increased. In cloudy days or insufficient illumination, a first servo motor is started, so that sunlight can enter the culture box, it is guaranteed that algae in the water body can conduct sufficient photosynthesis, and the dissolved oxygen in the water is kept at the appropriate level, and therefore the device can conveniently conduct cultivation according to weather changes and the growth stage of the young crayfish. And the purpose of dynamically adjusting illumination and temperature is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of lobster seed breeding, and in particular is a high-efficiency cultivation device for crayfish seed breeding. Background Art

[0002] At a time when the crayfish farming industry is booming, the cultivation of high-quality seedlings is the key to the large-scale and efficient development of the industry. Existing crayfish seedling cultivation devices have obvious deficiencies in environmental control, resource utilization and automated feeding. For example, when the device is in use, it is impossible to dynamically adjust the light and temperature according to weather changes and the growth stage of crayfish seedlings. When encountering high temperature and strong light weather, the fixed sunshade net is difficult to effectively reduce the temperature in the seedling pond, which can easily lead to excessive water temperature, causing the crayfish seedlings to have a strong stress reaction or even death. On cloudy days or when there is insufficient light, the sunshade structure cannot be removed in time, affecting the photosynthesis of algae in the water body, reducing the dissolved oxygen content in the water, and thus affecting the growth of the seedlings. In addition, existing devices generally lack effective utilization of rainwater resources. During the rainy season, a large amount of rainwater is directly discharged, which not only wastes water resources but also increases the cost of sewage treatment. At the same time, the feeding process of traditional seedling cultivation devices relies on manual operation, which is labor-intensive and difficult to accurately control the feeding time and feeding amount.

[0003] Publication number CN discloses 209546605U, an efficient cultivation device for raising crayfish seedlings, which relates to the field of aquaculture technology. The device comprises a left side plate, a right side plate and a placement plate. The left side plate and the right side plate are fixedly connected by the placement plate. A box body is provided on the top of the placement plate. The efficient cultivation device for raising crayfish seedlings achieves the advantages of high cultivation efficiency and simple operation by providing a box body, a hatching cage, a seedling cage and an attachment base. A hatching cage is provided inside the seedling cage, and the parent shrimps with eggs are placed in the hatching cage. After the juvenile shrimps are hatched, they pass through the large mesh of the hatching cage and enter the seedling cage. The juvenile shrimps are attached to the attachment base for cultivation. The attachment base laid at the bottom of the seedling cage can provide a good habitat for the shrimp seedlings, facilitate feeding, make full use of the water body, and improve the breeding efficiency. At the same time, the parent shrimps are separated from the juvenile shrimps to prevent the parent shrimps from eating the juvenile shrimps, thereby improving the survival rate of the juvenile shrimps. The device has a simple structure and is easy to operate.

[0004] However, in actual use, the device still cannot effectively control sunlight, and lacks effective utilization of rainwater resources. The feeding process of lobster seedlings still relies on manual operation, which not only leads to feed waste, but also easily pollutes water quality, causes eutrophication of water bodies, breeds harmful microorganisms, and affects the survival rate and health of crayfish seedlings. Summary of the Invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides an efficient culture device for raising crayfish seedlings.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an efficient culture device for raising crayfish seedlings, comprising a culture box, a sunshade mechanism fixed to the top of the culture box, a rainwater recycling mechanism installed at one end of the culture box, and a feeding mechanism fixed to the top of the culture box;

[0007] The sunshade mechanism includes a mounting platform, a first servo motor and a first sunshade. The mounting platform is fixed to the top of the culture box. The first servo motor is fixed to the outside of the mounting platform. The first sunshade is fixed to the rotating end of the first servo motor. One end of the first sunshade is hinged to the second sunshade.

[0008] The rainwater recovery mechanism includes a second servo motor, a second connecting rod and a gear. The second servo motor is fixed to the outside of the culture box. The second connecting rod is fixed to the rotating end of the second servo motor. The gear is fixed to the outside of the second connecting rod.

[0009] The feeding mechanism includes a feeding box, a guide block and a first feeding port. The feeding box is fixed on the top of the culture box, the guide block is fixed on the bottom of the feeding box, and the first feeding port is opened on the bottom of the feeding box.

[0010] Preferably, a guide groove is provided on the top of the second sun visor, a first extension block is fixed on the top of the mounting platform, one end of the first extension block is hinged to a first connecting rod, a second extension block is fixed on the outside of the second sun visor, one end of the first connecting rod is hinged to the second extension block.

[0011] Preferably, two groups of mounting platforms are provided, and the mounting platforms are symmetrically distributed about the central axis of the first sun visor. Two groups of first servo motors are provided, and the first servo motors are symmetrically distributed about the central axis of the culture box. Several groups of guide grooves are provided, and the guide grooves are arranged at equal intervals about the central axis of the second sun visor.

[0012] Preferably, the interior of the culture box is slidably connected to a first rack, the exterior of the first rack is fixed with a first baffle, the interior of the culture box is slidably connected to a second rack, the exterior of the second rack is fixed with a second baffle, and a recovery port is provided at the top of the culture box.

[0013] Preferably, the second connecting rod is rotatably connected to the culture box, several groups of teeth are fixed to the outside of the gear, several groups of teeth are provided at the top of the first rack, the gear and the first rack are meshed and connected, several groups of teeth are provided at the bottom of the second rack, and the second rack is meshed and connected to the gear.

[0014] Preferably, the recycling port is provided with two groups, the recycling port is symmetrically distributed about the central axis of the culture box, the first baffle and the second baffle are symmetrically distributed about the central axis of the culture box, the first baffle and the culture box are slidingly connected, and the second baffle and the culture box are slidingly connected.

[0015] Preferably, one end of the culture box is provided with a second feeding port, the second connecting rod is externally fixed with a trigger disc, the trigger disc is externally fixed with a first magnet, the culture box is internally movably connected with a stopper, the stopper is externally fixed with a second magnet, the stopper is externally fixed with a return spring, and the top end of the culture box is internally provided with a third feeding port.

[0016] Preferably, the feeding box is provided with two groups, the feeding box is symmetrically distributed about the central axis of the culture box, the first feeding port is provided with two groups, the first feeding port is symmetrically distributed about the central axis of the feeding box, the output end of the first feeding port is communicated with the input end of the second feeding port, and the connecting end of the first feeding port and the second feeding port is slidingly connected with a stopper.

[0017] Preferably, the first feeding port and the second feeding port are provided with two groups symmetrically distributed about the central axis of the feeding box, and the first magnet and the second magnet repel each other.

[0018] Preferably, the return spring is used for pressing the second magnet and keeping it in a moving trend towards the trigger disc, the sliding cavity of the stopper is communicated with the rotating cavity of the trigger disc, and the top end of the third feeding port is communicated with the rotating cavity of the trigger disc.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] The device can block sunlight and prevent direct sunlight from entering through the first sunshade plate, the second sunshade plate, the first baffle and the second baffle at the top end of the culture box, thereby reducing the water temperature in the culture box and avoiding strong stress reaction of the crayfish larvae due to high temperature.

[0021] The application cooperates the structures of the second servo motor, the second connecting rod and the gear, so that the device can start the second servo motor in rainy days, drive the second connecting rod to rotate and drive the gear to rotate, so that the recycling opening blocked by the first baffle and the second baffle is exposed, at this time, the first servo motor is started, so that the rainwater can pass through the recycling opening and fall into the inside of the culture box through the guide groove and the first sunshade plate for collection, which can be used as the supplement of the water for seedling raising, reduces the dependence on external water resources, and reduces the breeding cost, so as to achieve the purpose of recycling the rainwater by the device.

[0022] The application cooperates the structures of the feeding box, the guide block and the first feeding opening, so that the device can add the shrimp food in the feeding box in advance, the shrimp food enters the inside of the first feeding opening through the guide of the guide block and is blocked by the block, when the second servo motor drives the second connecting rod to rotate, the trigger disc and the first magnet rotate with the second connecting rod, when the positions of the first magnet and the second magnet are opposite, the magnetic repulsion force of the first magnet and the second magnet can push the second magnet and the block outward, so that the first feeding opening and the second feeding opening are communicated, at this time, the shrimp food in the inside of the first feeding opening can be fed into the inside of the culture box through the second feeding opening, and when the positions of the first magnet and the second magnet are separated, the reset spring resets the block by using the restoring force, so that the feeding box can be synchronized with the rotation of the second connecting rod, so as to achieve the purpose of realizing automatic feeding by combining the opening and closing of the sunshade plate, and get rid of the limitations of traditional manual feeding. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole structure schematic view of the application;

[0024] Figure 2 It is a whole expansion structure schematic view of the application;

[0025] Figure 3 It is a sunshade mechanism structure schematic view of the application;

[0026] Figure 4 It is a sunshade mechanism contraction structure schematic view of the application;

[0027] Figure 5 It is a sunshade mechanism half-open state structure schematic view of the application;

[0028] Figure 6 It is a rainwater recycling mechanism structure schematic view of the application;

[0029] Figure 7 It is a rainwater recycling mechanism part enlarged structure schematic view of the application;

[0030] Figure 8 It is a feeding mechanism structure schematic view of the application;

[0031] Figure 9 It is a schematic structural diagram of the feeding mechanism of the present invention from the right side.

[0032] In the figure: 1. Culture box; 2. Sunshade mechanism; 201. Mounting table; 202. First servo motor; 203. First sunshade; 204. Second sunshade; 205. Guide pattern; 206. First extension block; 207. First connecting rod; 208. Second extension block; 3. Rainwater recycling mechanism; 301. Second servo motor; 302. Second connecting rod; 303. Gear; 304. First rack; 305. First baffle; 306. Second rack; 307. Second baffle; 308. Recovery port; 4. Feeding mechanism; 401. Feeding box; 402. Guide block; 403. First feeding port; 404. Second feeding port; 405. Trigger disk; 406. First magnet; 407. Baffle; 408. Second magnet; 409. Return spring; 410. Third feeding port. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] like Figures 1 to 9 As shown, the present invention provides an efficient culture device for raising crayfish seedlings, comprising a culture box 1, a sunshade mechanism 2 fixed to the top of the culture box 1, a rainwater recovery mechanism 3 installed at one end of the culture box 1, and a feeding mechanism 4 fixed to the top of the culture box 1.

[0035] like Figures 1 to 5 As shown, the sunshade mechanism 2 includes a mounting platform 201, a first servo motor 202 and a first sunshade 203. The mounting platform 201 is fixed to the top of the culture box 1. The first servo motor 202 is fixed to the outside of the mounting platform 201. The first sunshade 203 is fixed to the rotating end of the first servo motor 202. One end of the first sunshade 203 is hinged to the second sunshade 204. The top of the second sunshade 204 is provided with a guide groove 205. The mounting platform 201 is provided with two groups, and the mounting platforms 201 are symmetrically distributed about the central axis of the first sunshade 203. The first servo motor 202 is provided with two groups, and the first servo motor 202 is symmetrically distributed about the central axis of the culture box 1. Several groups of guide grooves 205 are provided, and the guide grooves 205 are arranged at equal intervals about the central axis of the second sunshade 204.

[0036] like Figures 1 to 5As shown, a first extension block 206 is fixed to the top of the mounting platform 201 , one end of which is hinged to a first connecting rod 207 ; a second extension block 208 is fixed to the outside of the second sun visor 204 , one end of which is hinged to the second extension block 208 .

[0037] The above scheme is adopted: by placing the crayfish seedlings inside the culture box 1 for seedling cultivation, when encountering high temperature and strong light weather, the first sunshade 203, the second sunshade 204, the first baffle 305 and the second baffle 307 on the top of the culture box 1 can isolate the sunlight, block direct strong light, reduce the water temperature in the culture box 1, and prevent the crayfish seedlings from having a strong stress response due to high temperature. On cloudy days or when there is insufficient light, the first servo motor 202 is started, and the first servo motor 202 drives the first sunshade 203 to rotate, and then drives the second sunshade 204 to lift, and folds the second sunshade 204 and the first sunshade 203. At this time, the top of the culture box 1 is exposed, allowing sunlight to enter the interior of the culture box 1, ensuring that the algae in the water body can fully photosynthesize, maintaining the dissolved oxygen content in the water at an appropriate level, creating a stable and high-quality environment for the growth of seedlings, and significantly improving the survival rate and health of the seedlings.

[0038] like Figures 1 to 9 As shown, the rainwater recycling mechanism 3 includes a second servo motor 301, a second connecting rod 302 and a gear 303. The second servo motor 301 is fixed to the outside of the culture box 1. The rotating end of the second servo motor 301 is fixed with the second connecting rod 302. The gear 303 is fixed to the outside of the second connecting rod 302. The interior of the culture box 1 is slidably connected to the first rack 304. The outside of the first rack 304 is fixed with a first baffle 305. The interior of the culture box 1 is slidably connected to the second rack 306. The second connecting rod 302 is rotatably connected to the culture box 1. The outside of the gear 303 is fixed with several groups of teeth. Several groups of teeth are provided at the top, the gear 303 and the first rack 304 are meshed and connected, several groups of teeth are provided at the bottom end of the second rack 306, the second rack 306 and the gear 303 are meshed and connected, a second baffle 307 is fixed to the outside of the second rack 306, a recovery port 308 is provided at the top of the culture box 1, and two groups of recovery ports 308 are provided, and the recovery ports 308 are symmetrically distributed about the central axis of the culture box 1, the first baffle 305 and the second baffle 307 are symmetrically distributed about the central axis of the culture box 1, the first baffle 305 and the culture box 1 are slidably connected, and the second baffle 307 and the culture box 1 are slidably connected.

[0039] The above solution is adopted: on rainy days, the second servo motor 301 is started to drive the second connecting rod 302 to rotate and drive the gear 303 to rotate, and then the rotation of the gear 303 drives the first rack 304 and the second rack 306 to move in opposite directions, so that the recovery port 308 blocked by the first baffle 305 and the second baffle 307 is exposed. At this time, the first servo motor 202 is started to set the first sunshade 203 to 45°, so that rainwater can pass through the recovery port 308 guided by the guide groove 205 and the first sunshade 203 and fall into the interior of the culture box 1 for collection, which can be used as a supplement to the water for seedling cultivation, reducing dependence on external water resources and also reducing breeding costs.

[0040] like Figures 1 to 9 As shown, the feeding mechanism 4 includes a feeding box 401, a guide block 402 and a first feeding port 403. The feeding box 401 is fixed to the top of the culture box 1, and the guide block 402 is fixed to the bottom end of the feeding box 401. The first feeding port 403 is provided at the bottom end of the feeding box 401, and a second feeding port 404 is provided at one end of the culture box 1. A trigger disk 405 is fixed to the outside of the second connecting rod 302, and a first magnet 406 is fixed to the outside of the trigger disk 405. The inside of the culture box 1 is movably connected with a block 407.

[0041] like Figures 1 to 9 As shown, there are two groups of feeding boxes 401, and the feeding boxes 401 are symmetrically distributed about the central axis of the culture box 1. There are two groups of first feeding ports 403, and the first feeding ports 403 are symmetrically distributed about the central axis of the feeding box 401. The output end of the first feeding port 403 is connected to the input end of the second feeding port 404. The connection end of the first feeding port 403 and the second feeding port 404 is slidably connected to a stopper 407, and a second magnet 408 is fixed to the outside of the stopper 407. The first feeding port 403 and the second feeding port 404 is provided with two groups of magnets symmetrically distributed about the central axis of the feeding box 401. The first magnet 406 and the second magnet 408 repel each other. A reset spring 409 is fixed to the outside of the stopper 407. A third feeding port 410 is provided at the top of the inside of the culture box 1. The reset spring 409 is used to squeeze the second magnet 408 and keep it moving toward the trigger disk 405. The sliding cavity of the stopper 407 is connected to the rotating cavity of the trigger disk 405, and the top of the third feeding port 410 is connected to the rotating cavity of the trigger disk 405.

[0042] The above solution is adopted: by adding shrimp food in advance into the feeding box 401, the shrimp food enters the first feeding port 403 through the guidance of the guide block 402 and is blocked by the stopper 407. When the second servo motor 301 is started to drive the second connecting rod 302 to rotate, the trigger plate 405 and the first magnet 406 rotate along with the second connecting rod 302. When the positions of the first magnet 406 and the second magnet 408 are relative, the repulsive magnetic force of the first magnet 406 and the second magnet 408 can push the second magnet 408 and the stopper 407 outward, so that the first feeding port 403 and the second feeding port 404 are connected. At this time, the shrimp food in the first feeding port 403 can be sucked out. The shrimp feed can be put into the interior of the culture box 1 through the second feeding port 404, and when the positions of the first magnet 406 and the second magnet 408 are disengaged, the return spring 409 uses its own restoring force to reset the stopper 407, so that the feeding box 401 can be synchronized with the rotation of the second connecting rod 302. When the stopper 407 is reset, a small amount of shrimp feed will be pushed into the rotating cavity of the trigger disk 405. Since the size of the trigger disk 405 is smaller than the rotating cavity, and the distance between the trigger disk 405 and the rotating cavity is larger than the particle size of the shrimp feed, the shrimp feed entering the rotating cavity will be added into the interior of the culture box 1 through the third feeding port 410, avoiding the phenomenon of blockage of the shrimp feed feeding.

[0043] The working principle and use process of the present invention are as follows: by placing the crayfish seedlings inside the culture box 1 for seedling cultivation, when encountering high temperature and strong light weather, the first sunshade 203, the second sunshade 204, the first baffle 305 and the second baffle 307 on the top of the culture box 1 can isolate the sunlight, block direct strong light, reduce the water temperature in the culture box 1, and avoid the crayfish seedlings from having a strong stress reaction due to high temperature. On cloudy days or when there is insufficient light, the first servo motor 202 is started, and the first servo motor 202 drives the first sunshade 203 to rotate, thereby driving the second sunshade 204 to lift, and folding the second sunshade 204 and the first sunshade 203. At this time, the top of the culture box 1 is exposed, allowing sunlight to enter the culture box The interior of the box 1 ensures that the algae in the water can fully photosynthesize, maintains the dissolved oxygen content in the water at an appropriate level, creates a stable and high-quality environment for the growth of seedlings, and significantly improves the survival rate and health of the seedlings. On rainy days, the second servo motor 301 is started to drive the second connecting rod 302 to rotate and drive the gear 303 to rotate, and then the rotation of the gear 303 drives the first rack 304 and the second rack 306 to move in opposite directions, so that the recovery port 308 blocked by the first baffle 305 and the second baffle 307 is exposed. At this time, the first servo motor 202 is started to set the first sunshade 203 to 45 degrees, so that rainwater can fall into the culture box through the recovery port 308 through the guide groove 205 and the first sunshade 203. 1 is collected and used as a supplement for raising seedlings, which reduces the dependence on external water resources and reduces the breeding cost. In addition, by adding shrimp food in advance to the feeding box 401, the shrimp food enters the first feeding port 403 through the guidance of the guide block 402 and is blocked by the stopper 407. When the second servo motor 301 is started to drive the second connecting rod 302 to rotate, the trigger plate 405 and the first magnet 406 rotate along with the second connecting rod 302. When the positions of the first magnet 406 and the second magnet 408 are relative, the repulsive magnetic force of the first magnet 406 and the second magnet 408 can push the second magnet 408 and the stopper 407 outward, so that the first feeding port 403 and the second feeding port 403 are opposite. 4 is connected. At this time, the shrimp food inside the first feeding port 403 can be fed into the interior of the culture box 1 through the second feeding port 404. When the first magnet 406 and the second magnet 408 are disengaged, the return spring 409 uses its own restoring force to reset the stopper 407, so that the feeding box 401 can be synchronized with the rotation of the second connecting rod 302. When the stopper 407 is reset, a small amount of shrimp food is pushed into the rotating cavity of the trigger disk 405. Since the size of the trigger disk 405 is smaller than the rotating cavity, and the distance between the trigger disk 405 and the rotating cavity is larger than the size of the shrimp food particles, the shrimp food entering the rotating cavity will be added to the interior of the culture box 1 through the third feeding port 410, avoiding the phenomenon of shrimp food feeding being blocked.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An efficient culture device for raising crayfish seedlings, comprising a culture box (1), characterized in that: A sunshade mechanism (2) is fixed to the top of the culture box (1), a rainwater recovery mechanism (3) is installed at one end of the culture box (1), and a feeding mechanism (4) is fixed to the top of the culture box (1); The sunshade mechanism (2) comprises a mounting platform (201), a first servo motor (202) and a first sunshade (203); the mounting platform (201) is fixed to the top of the culture box (1); the first servo motor (202) is fixed to the outside of the mounting platform (201); the first sunshade (203) is fixed to the rotating end of the first servo motor (202); and one end of the first sunshade (203) is hinged to a second sunshade (204); The rainwater recovery mechanism (3) comprises a second servo motor (301), a second connecting rod (302) and a gear (303); the second servo motor (301) is fixed to the outside of the culture box (1); the second connecting rod (302) is fixed to the rotating end of the second servo motor (301); and the gear (303) is fixed to the outside of the second connecting rod (302); The feeding mechanism (4) comprises a feeding box (401), a guide block (402) and a first feeding port (403); the feeding box (401) is fixed to the top of the culture box (1); the guide block (402) is fixed to the bottom of the feeding box (401); and the first feeding port (403) is opened at the bottom of the feeding box (401).

2. The high-efficiency culture device for raising crayfish seedlings according to claim 1, characterized in that: The top of the second sun visor (204) is provided with a guide groove (205), the top of the mounting platform (201) is fixed with a first extension block (206), one end of the first extension block (206) is hinged with a first connecting rod (207), the outside of the second sun visor (204) is fixed with a second extension block (208), one end of the first connecting rod (207) is hinged with the second extension block (208).

3. The efficient culture device for raising crayfish seedlings according to claim 2, characterized in that: The mounting platforms (201) are provided in two groups, and the mounting platforms (201) are symmetrically distributed about the central axis of the first sunshade (203); the first servo motors (202) are provided in two groups, and the first servo motors (202) are symmetrically distributed about the central axis of the culture box (1); the guide grooves (205) are provided in a plurality of groups, and the guide grooves (205) are arranged at equal intervals about the central axis of the second sunshade (204).

4. The high-efficiency culture device for raising crayfish seedlings according to claim 1, characterized in that: The culture box (1) is internally slidably connected to a first rack (304), the first rack (304) is externally fixed with a first baffle (305), the culture box (1) is internally slidably connected to a second rack (306), the second rack (306) is externally fixed with a second baffle (307), and a recovery port (308) is provided at the top of the culture box (1).

5. The efficient culture device for raising crayfish seedlings according to claim 4, characterized in that: The second connecting rod (302) is rotatably connected to the culture box (1), a plurality of groups of teeth are fixed to the outside of the gear (303), a plurality of groups of teeth are provided at the top end of the first rack (304), the gear (303) and the first rack (304) are meshed and connected, a plurality of groups of teeth are provided at the bottom end of the second rack (306), and the second rack (306) and the gear (303) are meshed and connected.

6. The high-efficiency culture device for raising crayfish seedlings according to claim 4, characterized in that: The recovery ports (308) are provided in two groups, and the recovery ports (308) are symmetrically distributed about the central axis of the culture box (1). The first baffle (305) and the second baffle (307) are symmetrically distributed about the central axis of the culture box (1). The first baffle (305) and the culture box (1) are slidably connected, and the second baffle (307) and the culture box (1) are slidably connected.

7. The efficient culture device for raising crayfish seedlings according to claim 1, characterized in that: A second feeding port (404) is provided at one end of the culture box (1), a trigger disk (405) is fixed to the outside of the second connecting rod (302), a first magnet (406) is fixed to the outside of the trigger disk (405), a stopper (407) is movably connected to the inside of the culture box (1), a second magnet (408) is fixed to the outside of the stopper (407), a reset spring (409) is fixed to the outside of the stopper (407), and a third feeding port (410) is provided at the top end of the inside of the culture box (1).

8. The high-efficiency culture device for raising crayfish seedlings according to claim 7, characterized in that: The feeding boxes (401) are provided with two groups, and the feeding boxes (401) are symmetrically distributed about the central axis of the culture box (1). The first feeding ports (403) are provided with two groups, and the first feeding ports (403) are symmetrically distributed about the central axis of the feeding boxes (401). The output end of the first feeding port (403) is connected to the input end of the second feeding port (404), and the connection end of the first feeding port (403) and the second feeding port (404) is slidably connected to a block (407).

9. The high-efficiency culture device for raising crayfish seedlings according to claim 7, characterized in that: The first feeding port (403) and the second feeding port (404) are provided with two groups symmetrically distributed about the central axis of the feeding box (401), and the first magnet (406) and the second magnet (408) repel each other.

10. The high-efficiency culture device for raising crayfish seedlings according to claim 7, characterized in that: The return spring (409) is used to squeeze the second magnet (408) and keep it moving toward the trigger disk (405); the sliding cavity of the stopper (407) is connected to the rotating cavity of the trigger disk (405); and the top end of the third feeding port (410) is connected to the rotating cavity of the trigger disk (405).

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