A system and method for large-scale breeding of crayfish seedlings

Abstract

The application discloses a crayfish seedling large-scale breeding system and a breeding method, and the breeding system comprises a breeding pond, a first sliding block is fixed with a material spreading mechanism, the material spreading mechanism comprises a trigger button, the trigger button is fixed on the inner end face of the first sliding block, the top of the first sliding block is fixed with a second compression spring and a limiting column, the top of the second compression spring is fixed with a support plate, the limiting column penetrates through the support plate, and two support plates are fixed with a feeding channel. The crayfish seedling large-scale breeding system, the storage box is transversely moved and aligned with the feeding channel, the third lead screw is rotated while the first rotating shaft is rotated, the sliding block and the butt joint channel are integrally moved downward, the feeding channel is conveniently butt jointed together after the feeding channel is aligned with the feeding channel, the outer spiral is rotated together with the third rotating shaft after the feed is smoothly fed into the feeding channel, and the feed is automatically dispersed and spread, so that the feed can be more dispersed and fed into the breeding pond.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, specifically to a large-scale breeding system and method for crayfish seedlings. Background Technology

[0002] The Chinese scientific name for crayfish is Procambarus clarkii. It originated in North America and is an important farmed freshwater shrimp species in the United States. It was introduced to Japan in 1918 and then to my country during World War II. It first began to breed in Nanjing and its suburbs in Jiangsu Province. After more than half a century of expansion, it has now spread to rivers, lakes, canals, ponds and embankments in the middle and lower reaches of my country, becoming an important species of freshwater shrimp in my country. Crayfish have the advantages of being less susceptible to diseases, having a varied diet, growing quickly, and having a strong reproductive capacity. They are also not very demanding in terms of the width and depth of the water. Currently, many countries in the world are engaged in artificial breeding of crayfish.

[0003] The existing large-scale breeding equipment for crayfish seedlings has a relatively concentrated feeding location during the feeding process, resulting in insufficient and uneven feeding. It is also inconvenient to spread the feed out before feeding, and the feeding port of the equipment is relatively small, which affects the feeding effect and efficiency. To address these issues, the existing equipment needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to provide a large-scale breeding system and method for crayfish seedlings, in order to solve the problems mentioned in the background art, such as the concentrated feeding location and insufficient uniform feeding effect in the existing large-scale breeding devices for crayfish seedlings, the inconvenience of spreading the feed before feeding, and the small feeding port of the feeding device, which affect the feeding effect and efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a large-scale breeding system for crayfish seedlings, comprising a breeding pond, wherein first sliders are symmetrically slidably connected to both sides of the upper surface of the breeding pond, a bracket is fixed to the top of the first sliders, a second lead screw is rotatably connected between the two brackets, a second slider is threadedly connected to the outer side of the second lead screw, a storage box is fixed to the bottom of the second slider, a feed plug is threadedly connected to the top of the storage box, and a docking mechanism is fixed to the bottom of the storage box.

[0006] A material spreading mechanism is fixed on the first slider. The material spreading mechanism includes a trigger button, which is fixed on the inner end face of the first slider. A second compression spring and a limiting post are fixed on the top of the first slider. A support plate is fixed on the top of the second compression spring. The limiting post passes through the support plate. A feeding channel is fixed between the two support plates.

[0007] Preferably, a first motor is symmetrically fixed on both sides inside the breeding pool, and the output end of the first motor is connected to a first lead screw, and a first slider is threadedly connected to the outer side of the first lead screw.

[0008] Through the above technical solution, the rotation of the first lead screw can drive the first slider to slide.

[0009] Preferably, a second motor is fixed to the outside of one of the brackets, and the output end of the second motor is connected to a second lead screw. A limit rod is fixed between the two brackets, and the limit rod passes through the storage box.

[0010] Through the above technical solution, the rotation of the second lead screw can drive the second slider and the storage box to move laterally as a whole.

[0011] Preferably, the docking mechanism includes a third motor, which is fixed to the bottom of the storage box. The output end of the third motor is connected to the first rotating shaft. A material discharge channel is fixed to the bottom of the storage box. The first rotating shaft passes through the material discharge channel, and a flip valve is fixed to the outside of the first rotating shaft.

[0012] With the above technical solution, the first rotating shaft and the tilting valve can rotate to automatically feed materials, and the tilting valve can stop feeding materials when it does not rotate.

[0013] Preferably, a first bevel gear is symmetrically fixed at both ends of the first rotating shaft, and a second bevel gear is meshed with the bottom of the first bevel gear. A second rotating shaft is fixed at the bottom of the second bevel gear. Limiting blocks are symmetrically fixed on both sides of the feeding channel. The second rotating shaft passes through the limiting blocks and is engaged with a square sleeve. A gear ring is fixed at the bottom of the square sleeve.

[0014] Through the above technical solution, the rotation of the first bevel gear can drive the rotation of the second bevel gear, the second rotating shaft, and the square sleeve.

[0015] Preferably, a spur gear is meshed with the inner side of the gear ring, and an electromagnet is fixed to both the inner top of the gear ring and the top of the spur gear. The polarity of the electromagnet on the gear ring is the same as that of the electromagnet on the spur gear. A third lead screw is fixed to the bottom of the spur gear, and the third lead screw is symmetrically rotatably connected to both sides of the feeding channel.

[0016] The above technical solution requires energizing two electromagnets before separating the docking channel and the feeding channel, causing the gear ring to automatically move upward and leave the circular gear.

[0017] Preferably, the bottom of the feeding channel has a connecting channel, and a third slider is symmetrically fixed on both sides of the connecting channel. The third slider is threaded to the outside of the third lead screw. Slides are symmetrically opened on both sides of the feeding channel, and the third slider is slidably connected in the slide.

[0018] Through the above technical solution, the rotation of the third lead screw can drive the third slider to slide.

[0019] Preferably, a first compression spring is symmetrically fixed on both sides of the feeding channel, and a pad is fixed on the top of the first compression spring. The third slider rests on the pad, and the third lead screw passes through the third slider and the pad.

[0020] The above technical solution, combined with the first compression spring and the pad, can assist the third slider in moving upward and resetting.

[0021] Preferably, the top of the feeding channel is fixed with a feeding channel, and the bottom of the feeding channel is provided with a feeding port. A fourth motor is fixed to the upper surface of one of the support plates, and the output end of the fourth motor is connected to the chain drive assembly. A through hole is provided on one of the support plates. A first ratchet and a second ratchet are fixed to one side of the chain drive assembly. A first ratchet sleeve and a second ratchet sleeve are rotatably connected in the through hole. The first ratchet sleeve is placed on the outside of the first ratchet, and the second ratchet sleeve is placed on the outside of the second ratchet. A third rotating shaft is fixed to one side of the first ratchet sleeve. The third rotating shaft is rotatably connected in the feeding channel, and external spirals are symmetrically fixed on both sides of the outside of the third rotating shaft. A bottom cover is fixed to one side of the second ratchet sleeve, and the bottom cover is rotatably connected to the bottom of the feeding channel.

[0022] With the above technical solution, when the third rotating shaft and the outer spiral rotate, the bottom cover does not rotate, and when the bottom cover rotates, the third rotating shaft and the outer spiral do not rotate.

[0023] A method for large-scale breeding of crayfish seedlings, characterized by the following steps:

[0024] S1. 14 days before stocking, the breeding pond should be dredged and disinfected by sprinkling quicklime. Two days later, fresh water should be added to the pond, with a water depth of 0.6 to 1.2 meters.

[0025] S2. 12 days before stocking, transplant submerged and floating plants into the breeding pond. The submerged plant planting area is 25% to 35% of the breeding pond area. Cover the breeding pond with floating plants, covering 15% to 25% of the breeding pond area.

[0026] S3. Six days before stocking, introduce planktonic organisms such as rotifers, cladocerans, and copepods into the breeding pond to provide live food for the shrimp larvae.

[0027] S4. In the early morning, release 100,000 to 150,000 juvenile shrimp with a body length of about 1 cm per mu. Control the dissolved oxygen in the water to be no less than 5 mg / L, pH 7 to 8, and maintain the water transparency at 45 to 65 cm during the cultivation period.

[0028] S5. Feed and control the breeding temperature according to conventional methods;

[0029] S6. After feeding the feed into the storage box, first move the storage box horizontally and align the feeding channel with the feeding channel. Then, open the flip valve to feed the feed. The docking channel moves down and extends into the feeding channel, and the feed smoothly enters the feeding channel. Then, the outer spiral rotates to automatically spread the feed.

[0030] S7. When feeding into the feeding channel, the feeding channel sinks. After the support plate presses the trigger button, the chain drive component reverses and the bottom cover rotates to open the feeding port, thereby feeding the feed into the breeding pool.

[0031] S8. After each feeding operation is completed, the bottom cover rotates to seal the feeding port, and then the storage box and feeding channel move longitudinally as a whole to feed materials in an orderly and comprehensive manner.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0033] 1. This large-scale breeding system for crayfish seedlings can achieve automatic feed spreading. After the storage box moves horizontally and aligns the feeding channel with the infeed channel, the flip valve rotates with the first rotating shaft, while the third screw rotates. The slider and docking channel move down as a whole, making it easy to align the feeding channel with the infeed channel. After the feed smoothly enters the feeding channel, the outer spiral rotates with the third rotating shaft, thereby automatically spreading the feed and allowing it to be more dispersed in the breeding pond.

[0034] 2. This large-scale breeding system for crayfish seedlings can achieve quantitative feeding. The chain drive component can drive the first and second ratchet wheels to rotate simultaneously. When the chain drive component rotates forward, the first ratchet sleeve rotates with the first ratchet wheel. When the chain drive component rotates in reverse, the second ratchet sleeve rotates with the second ratchet wheel. While spreading the material using the outer spiral and the third rotating shaft, the feeding channel sinks. After the support plate presses the trigger button, the chain drive component automatically reverses its direction, and the bottom cover rotates to open the feeding port, facilitating quantitative feeding. The spreading of material and the opening and closing of the feeding port are achieved by the same drive device, which is energy-saving and efficient.

[0035] 3. This large-scale breeding system for crayfish seedlings can achieve orderly and comprehensive feeding. The rotation of the first screw can drive the first slider, support, storage box and feeding channel to move horizontally and longitudinally as a whole, which facilitates efficient, orderly and comprehensive feeding. Attached Figure Description

[0036] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0037] Figure 2 This is a frontal cross-sectional view of the present invention;

[0038] Figure 3 This is a top view cross-sectional structural diagram of the present invention;

[0039] Figure 4 This is a three-dimensional structural diagram of the docking mechanism of the present invention;

[0040] Figure 5 This is a frontal cross-sectional view of the docking mechanism of the present invention;

[0041] Figure 6 This is a schematic diagram of the connection structure between the first slider and the spreading mechanism of the present invention;

[0042] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0043] Figure 8 This is a schematic diagram of the connection structure of the feeding channel, feeding port, third rotating shaft, outer spiral and bottom cover of the present invention.

[0044] In the diagram: 1. Breeding pool; 2. First motor; 3. First lead screw; 4. First slider; 5. Support; 6. Second motor; 7. Second lead screw; 8. Second slider; 9. Storage bin; 10. Limiting rod; 11. Feed plug; 12. Docking mechanism; 1201. Third motor; 1202. First rotating shaft; 1203. Feeding channel; 1204. Tilting valve; 1205. First bevel gear; 1206. Second bevel gear; 1207. Second rotating shaft; 1208. Limiting block; 1209. Square sleeve; 1210. Gear ring; 1211. Circular gear; 1212. Electromagnet; 1213. Third lead screw; 1214. Docking mechanism 1215. Channel; 1216. Third slider; 1217. Slide rail; 1218. First compression spring; 1219. Pad block; 13. Material spreading mechanism; 1301. Trigger button; 1302. Second compression spring; 1303. Limiting post; 1304. Support plate; 1305. Feeding channel; 1306. Feeding channel; 1307. Feeding port; 1308. Fourth motor; 1309. Chain drive assembly; 1310. Through hole; 1311. First ratchet; 1312. First ratchet sleeve; 1313. Third rotating shaft; 1314. External spiral; 1315. Second ratchet; 1316. Second ratchet sleeve; 1317. Bottom cover. Detailed Implementation

[0045] 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 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.

[0046] Please see Figure 1-8The present invention provides a technical solution: a large-scale breeding system for crayfish seedlings, including a breeding pond 1, with first sliders 4 symmetrically slidably connected to both sides of the upper surface of the breeding pond 1, a bracket 5 fixed to the top of the first sliders 4, a second lead screw 7 rotatably connected between the two brackets 5, a second slider 8 threadedly connected to the outer side of the second lead screw 7, a storage box 9 fixed to the bottom of the second slider 8, a feed plug 11 threadedly connected to the top of the storage box 9, and a docking mechanism 12 fixed to the bottom of the storage box 9.

[0047] A material spreading mechanism 13 is fixed on the first slider 4. The material spreading mechanism 13 includes a trigger button 1301, which is fixed on the inner end face of the first slider 4. A second compression spring 1302 and a limiting post 1303 are fixed on the top of the first slider 4. A support plate 1304 is fixed on the top of the second compression spring 1302. The limiting post 1303 passes through the support plate 1304. A feeding channel 1305 is fixed between the two support plates 1304.

[0048] In this embodiment, a first motor 2 is symmetrically fixed on both sides inside the breeding pool 1, and the output end of the first motor 2 is connected to the first lead screw 3. The outer side of the first lead screw 3 is threaded with a first slider 4. After the storage box 9 is connected to the feeding channel 1305, the first lead screw 3 can rotate under the action of the first motor 2. At this time, the first slider 4 can slide forward or backward under the limiting action of the breeding pool 1 and the first lead screw 3, which facilitates comprehensive and uniform feeding.

[0049] In this embodiment, a second motor 6 is fixed to the outside of one of the brackets 5, and the output end of the second motor 6 is connected to the second lead screw 7. A limit rod 10 is fixed between the two brackets 5, and the limit rod 10 passes through the storage box 9. After the feeding operation is completed, the second lead screw 7 can rotate under the action of the second motor 6. At this time, the second slider 8 and the storage box 9 can slide under the limiting action of the second lead screw 7 and the limit rod 10, so as to make it convenient to align the feeding channel 1203 with the feeding channel 1306.

[0050] In this embodiment, the docking mechanism 12 includes a third motor 1201, which is fixed to the bottom of the storage box 9. The output end of the third motor 1201 is connected to the first rotating shaft 1202. A feeding channel 1203 is fixed to the bottom of the storage box 9. The first rotating shaft 1202 passes through the feeding channel 1203, and a flip valve 1204 is fixed to the outside of the first rotating shaft 1202. The first rotating shaft 1202 can rotate under the action of the third motor 1201, thereby driving the flip valve 1204 to rotate, so as to conveniently and flexibly control the opening and closing of the feeding channel 1203.

[0051] In this embodiment, first bevel gears 1205 are symmetrically fixed at both ends of the first rotating shaft 1202, and a second bevel gear 1206 is meshed with the bottom of the first bevel gear 1205. A second rotating shaft 1207 is fixed at the bottom of the second bevel gear 1206. Limiting blocks 1208 are symmetrically fixed on both sides of the feeding channel 1203. The second rotating shaft 1207 passes through the limiting block 1208 and is engaged with a square sleeve 1209. A gear ring 1210 is fixed at the bottom of the square sleeve 1209. The rotation of the first rotating shaft 1202 drives the two first bevel gears 1205 to rotate. The second bevel gear 1206 will rotate with the rotation of the first bevel gear 1205, thereby driving the second rotating shaft 1207 to rotate, thereby driving the square sleeve 1209 to rotate, and the gear ring 1210 to rotate accordingly.

[0052] In this embodiment, a spur gear 1211 is meshed with the inner side of the gear ring 1210, and an electromagnet 1212 is fixed to the inner top of the gear ring 1210 and the top of the spur gear 1211. The polarity of the electromagnet 1212 on the gear ring 1210 is the same as that of the electromagnet 1212 on the spur gear 1211. A third lead screw 1213 is fixed to the bottom of the spur gear 1211, and the third lead screw 1213 is symmetrically rotatably connected to both sides of the feeding channel 1203. The rotation of the gear ring 1210 can drive the spur gear 1211 to rotate, thereby driving the third lead screw 1213 to rotate. After the two electromagnets 1212 are energized, the two electromagnets 1212 with the same poles repel each other, the gear ring 1210 moves upward and disengages from the spur gear 1211, and the rotation of the spur gear 1211 will not affect the gear ring 1210.

[0053] In this embodiment, the bottom of the feeding channel 1203 is provided with a docking channel 1214, and third sliders 1215 are symmetrically fixed on both sides of the docking channel 1214. The third sliders 1215 are threaded to the outside of the third lead screw 1213. Slides 1216 are symmetrically provided on both sides of the feeding channel 1203. The third sliders 1215 are slidably connected in the slides 1216. When the third lead screw 1213 rotates, the third sliders 1215 can slide up and down under the limiting action of the third lead screw 1213 and the slides 1216. The docking channel 1214 moves up and down accordingly, which facilitates docking or separating the feeding channel 1203 and the feeding channel 1306.

[0054] In this embodiment, first compression springs 1217 are symmetrically fixed on both sides of the feeding channel 1203, and a pad 1218 is fixed on the top of the first compression springs 1217. The third slider 1215 rests on the pad 1218, and the third lead screw 1213 passes through the third slider 1215 and the pad 1218. When the flip valve 1204 rotates to feed, the docking channel 1214 moves down and extends into the feeding channel 1306, thereby connecting the feeding channel 1203 and the feeding channel 1306. When the 06 are connected, the first compression spring 1217 is compressed. After the flip valve 1204 stops rotating, the two electromagnets 1212 are energized. The two electromagnets 1212 repel each other because they are like poles. The gear ring 1210 moves up away from the spur gear 1211. The pad block 1218 automatically bounces up under the action of the first compression spring 1217, thereby lifting the third slider 1215. At this time, the third lead screw 1213 rotates, and the docking channel 1214 can be pulled out from the feed channel 1306.

[0055] In this embodiment, a feeding channel 1306 is fixed to the top of the feeding channel 1305, and a feeding port 1307 is opened at the bottom of the feeding channel 1305. A fourth motor 1308 is fixed to the upper end face of one of the support plates 1304, and the output end of the fourth motor 1308 is connected to the chain drive assembly 1309. A through hole 1310 is opened on one of the support plates 1304. A first ratchet 1311 and a second ratchet 1315 are fixed to one side of the chain drive assembly 1309. The through hole 1310 contains... A first ratchet sleeve 1312 and a second ratchet sleeve 1316 are rotatably connected. The first ratchet sleeve 1312 is fitted onto the outside of the first ratchet 1311, and the second ratchet sleeve 1316 is fitted onto the outside of the second ratchet 1315. A third rotating shaft 1313 is fixed to one side of the first ratchet sleeve 1312. The third rotating shaft 1313 is rotatably connected inside the feeding channel 1305, and external spirals 1314 are symmetrically fixed on both sides of the outside of the third rotating shaft 1313. A bottom cover 1317 is fixed to one side of the second ratchet sleeve 1316. The bottom cover 1317 is rotatably connected to the bottom of the feeding channel 1305. The chain drive assembly 1309, when operating, can drive the first ratchet 1311 and the second ratchet 1315 to rotate simultaneously. Since the direction of the first ratchet 1311 is opposite to that of the second ratchet 1315, after the feed is fed into the feeding channel 1305, the chain drive assembly 1309 rotates clockwise. The rotation of the first ratchet 1311 drives the first ratchet sleeve 1312 to rotate, while the rotation of the second ratchet 1315 cannot drive the second ratchet sleeve 1316 to rotate. When the third rotating shaft 1313 and the outer spiral 1314 rotate, the feed is automatically spread out and fed into the feeding channel 1305. During the feeding process, the feeding channel 1305 will become heavier and sink. After the support plate 1304 presses the trigger button 1301, the chain drive assembly 1309 reverses. At this time, the second ratchet 1315 rotates and drives the second ratchet sleeve 1316 to rotate. The first ratchet 1311 cannot drive the first ratchet sleeve 1312 to rotate. The bottom cover 1317 rotates and opens the feeding port 1307 to facilitate automatic feeding.

[0056] According to another aspect of the present invention, a method for large-scale breeding of crayfish seedlings is provided, comprising the following steps:

[0057] S1. 14 days before stocking, clean the breeding pond 1 and disinfect it thoroughly by sprinkling quicklime. Two days later, add fresh water to the pond, with a water depth of 0.6 to 1.2 m.

[0058] S2. 12 days before stocking, transplant submerged and floating plants into breeding pond 1. The planting area of ​​submerged plants is 25% to 35% of the area of ​​breeding pond 1. Cover the area of ​​breeding pond 1 with floating plants, covering 15% to 25% of the area of ​​breeding pond 1.

[0059] S3. Six days before stocking, introduce planktonic organisms such as rotifers, cladocerans, and copepods into breeding pond 1 to provide live food for the shrimp larvae.

[0060] S4. In the early morning, release 100,000 to 150,000 juvenile shrimp with a body length of about 1 cm per mu. Control the dissolved oxygen in the water to be no less than 5 mg / L, pH 7 to 8, and maintain the water transparency at 45 to 65 cm during the cultivation period.

[0061] S5. Feed and control the breeding temperature according to conventional methods;

[0062] S6. After feeding the feed into the storage box 9, first move the storage box 9 horizontally and align the feeding channel 1203 with the feeding channel 1306. Then, the flip valve 1204 opens to feed the feed, and the docking channel 1214 moves down and extends into the feeding channel 1306. The feed smoothly enters the feeding channel 1305. Then, the outer spiral 1314 rotates to automatically spread the feed.

[0063] S7. When feeding material into the feeding channel 1305, the feeding channel 1305 sinks. After the support plate 1304 presses the trigger button 1301, the chain drive assembly 1309 reverses, and the bottom cover 1317 rotates to open the feeding port 1307, thereby feeding the feed into the breeding pond 1.

[0064] S8. After each feeding operation is completed, the bottom cover 1317 rotates to seal the feeding port 1307, and then the storage box 9 and the feeding channel 1305 move longitudinally as a whole to feed materials in an orderly and comprehensive manner.

[0065] The working principle of this device is as follows: Breeding pond 1 is used to raise crayfish seedlings. The feed storage tank 9 is initially positioned near one of the supports 5. First, the feed plug 11 is unscrewed, and feed is introduced into the feed storage tank 9. After feeding, the feed plug 11 is screwed back on. The second lead screw 7 rotates, and the second slider 8 and the feed storage tank 9 slide together until the discharge channel 1203 aligns with the feed channel 1306. Then, the first rotating shaft 1202 and the tilting valve 1204 rotate, thereby discharging the feed from the feed storage tank 9. This is achieved by using a first bevel gear 1205, a second bevel gear 1206, a second rotating shaft 1207, a square sleeve 1209, a gear ring 1210, and a spur gear 1. 211 can drive the third lead screw 1213 to rotate. At this time, the third slider 1215 slides downward, and the docking channel 1214 extends into the feeding channel 1306, thereby completing the docking operation between the feeding channel 1203 and the feeding channel 1306. The feed enters the feeding channel 1305. The chain drive assembly 1309 rotates, driving the first ratchet 1311 and the second ratchet 1315 to rotate. Since the direction of the first ratchet 1311 is opposite to that of the second ratchet 1315, when the chain drive assembly 1309 rotates forward, the rotation of the first ratchet 1311 drives the rotation of the first ratchet sleeve 1312, and the third rotating shaft 1313 and the outer screw 1314 rotate. During the automatic feeding process, the feed is spread out and fed into the feeding channel 1305. The feeding channel 1305 sinks as feed is introduced. Once a certain amount of feed is introduced into the feeding channel 1305, the support plate 1304 presses the trigger button 1301, thereby reversing the rotation direction of the chain drive assembly 1309. The chain drive assembly 1309 reverses, causing the second ratchet 1315 to drive the second ratchet sleeve 1316 to rotate. The bottom cover 1317 rotates to open the feeding port 1307, thus feeding the crayfish seedlings into the breeding pond 1. The rotation of the first screw 3 can drive the first slider 4, the support 5, and the storage box 9 to slide forward or backward. Repeating the above operations allows for orderly... Before feeding material into the storage bin 9, the first rotating shaft 1202 and the tilting valve 1204 stop rotating. After energizing the two electromagnets 1212, the two electromagnets 1212 repel each other due to their like poles. The gear ring 1210 moves upward away from the spur gear 1211, and the pad block 1218 automatically pops up, thereby lifting the third slider 1215. The third lead screw 1213 rotates, and the docking channel 1214 moves upward and away from the feeding channel 1306. Then, the storage bin 9 can be moved laterally to its original position for feeding. This is the working principle of the device. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0066] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A large-scale breeding system for crayfish seedlings, comprising a breeding pond (1), characterized in that: The breeding pool (1) has two symmetrical sliding connections on its upper surface, with first sliders (4) slidably connected on both sides. A bracket (5) is fixed to the top of each first slider (4). A second lead screw (7) is rotatably connected between the two brackets (5). A second slider (8) is threaded onto the outer side of the second lead screw (7). A storage box (9) is fixed to the bottom of the second slider (8). A feed plug (11) is threaded onto the top of the storage box (9). A docking mechanism (12) is fixed to the bottom of the storage box (9). The first slider (4) is fixed with... A material spreading mechanism (13) is provided. The material spreading mechanism (13) includes a trigger button (1301). The trigger button (1301) is fixed on the inner end face of the first slider (4). A second compression spring (1302) and a limiting post (1303) are fixed on the top of the first slider (4). A support plate (1304) is fixed on the top of the second compression spring (1302). The limiting post (1303) passes through the support plate (1304). A feeding channel (1305) is fixed between the two support plates (1304). The top of the feeding channel (1305) is fixed with a feeding channel (1306), and the bottom of the feeding channel (1305) is provided with a feeding port (1307). A fourth motor (1308) is fixed on the upper surface of one of the support plates (1304), and the output end of the fourth motor (1308) is connected to the chain drive assembly (1309). A through hole (1310) is provided on one of the support plates (1304). A first ratchet (1311) and a second ratchet (1315) are fixed on one side of the chain drive assembly (1309). A first ratchet sleeve (1312) and a second ratchet are rotatably connected in the through hole (1310). The second ratchet sleeve (1316) is fitted on the outside of the first ratchet (1312), and the second ratchet sleeve (1316) is fitted on the outside of the second ratchet (1315). A third rotating shaft (1313) is fixed on one side of the first ratchet sleeve (1312). The third rotating shaft (1313) is rotatably connected in the feeding channel (1305). External spirals (1314) are symmetrically fixed on both sides of the third rotating shaft (1313). A bottom cover (1317) is fixed on one side of the second ratchet sleeve (1316), and the bottom cover (1317) is rotatably connected to the bottom of the feeding channel (1305).

2. The crayfish seedling large-scale breeding system according to claim 1, characterized in that: The breeding pool (1) has a first motor (2) fixed symmetrically on both sides inside, and the output end of the first motor (2) is connected to the first lead screw (3). The first lead screw (3) is threadedly connected to the outer side of the first slider (4).

3. The crayfish seedling large-scale breeding system according to claim 1, characterized in that: A second motor (6) is fixed to the outside of one of the brackets (5), and the output end of the second motor (6) is connected to the second lead screw (7). A limit rod (10) is fixed between the two brackets (5), and the limit rod (10) passes through the storage box (9).

4. The crayfish seedling large-scale breeding system according to claim 1, characterized in that: The docking mechanism (12) includes a third motor (1201), which is fixed at the bottom of the storage box (9). The output end of the third motor (1201) is connected to the first rotating shaft (1202). The bottom of the storage box (9) is fixed with a feeding channel (1203). The first rotating shaft (1202) passes through the feeding channel (1203), and a flip valve (1204) is fixed on the outside of the first rotating shaft (1202).

5. The crayfish seedling large-scale breeding system according to claim 4, characterized in that: The first rotating shaft (1202) is symmetrically fixed with a first bevel gear (1205) at both ends, and a second bevel gear (1206) is meshed with the bottom of the first bevel gear (1205). The bottom of the second bevel gear (1206) is fixed with a second rotating shaft (1207). Limiting blocks (1208) are symmetrically fixed on both sides of the feeding channel (1203). The second rotating shaft (1207) passes through the limiting block (1208) and is engaged with a square sleeve (1209). A gear ring (1210) is fixed at the bottom of the square sleeve (1209).

6. The crayfish seedling large-scale breeding system according to claim 5, characterized in that: The inner side of the gear ring (1210) is meshed with a spur gear (1211), and electromagnets (1212) are fixed on the inner top of the gear ring (1210) and the top of the spur gear (1211). The polarity of the electromagnet (1212) on the gear ring (1210) is the same as that of the electromagnet (1212) on the spur gear (1211). A third lead screw (1213) is fixed at the bottom of the spur gear (1211), and the third lead screw (1213) is symmetrically rotated and connected to both sides of the feeding channel (1203).

7. The crayfish seedling large-scale breeding system according to claim 4, characterized in that: The bottom of the feeding channel (1203) is connected by a docking channel (1214), and a third slider (1215) is symmetrically fixed on both sides of the docking channel (1214). The third slider (1215) is threaded to the outside of the third lead screw (1213). The two sides of the feeding channel (1203) are symmetrically provided with slides (1216), and the third slider (1215) is slidably connected in the slides (1216).

8. The crayfish seedling large-scale breeding system according to claim 7, characterized in that: The feeding channel (1203) is symmetrically fixed with first compression springs (1217) on both sides, and a pad (1218) is fixed on the top of the first compression springs (1217). The third slider (1215) rests on the pad (1218), and the third lead screw (1213) passes through the third slider (1215) and the pad (1218).

9. The method for large-scale breeding of crayfish seedlings using the crayfish seedling large-scale breeding system as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. 14 days before stocking, the breeding pond (1) is dredged and disinfected by sprinkling quicklime. Two days later, new water is added with a depth of 0.6 to 1.2 m. S2. Twelve days before stocking, submerged and floating plants are transplanted into the breeding pond (1). The area of ​​submerged plants is 25% to 35% of the area of ​​the breeding pond (1). Floating plants are covered around the breeding pond (1), covering 15% to 25% of the area of ​​the breeding pond (1). S3. Six days before stocking, rotifers, cladocerans, and copepods are introduced into the breeding pond (1) to provide biological feed for the shrimp larvae. S4. In the early morning, release 100,000 to 150,000 juvenile shrimp with a body length of about 1 cm per mu. Control the dissolved oxygen in the water to be no less than 5 mg / L, pH 7 to 8, and maintain the water transparency at 45 to 65 cm during the cultivation period. S5. Feed and control the breeding temperature according to conventional methods; S6. After feeding the feed into the storage box (9), first move the storage box (9) horizontally and align the feeding channel (1203) with the feeding channel (1306). Then, open the flip valve (1204) to feed the feed. The docking channel (1214) moves down and extends into the feeding channel (1306). The feed smoothly enters the feeding channel (1305). Then, the outer spiral (1314) rotates to automatically spread the feed. S7. When feeding into the feeding channel (1305), the feeding channel (1305) sinks, and after the support plate (1304) presses the trigger button (1301), the chain drive assembly (1309) reverses, and the bottom cover (1317) rotates to open the feeding port (1307), thereby feeding the feed into the breeding pond (1). S8. After each feeding operation is completed, the bottom cover (1317) rotates to seal the feeding port (1307), and then the storage box (9) and the feeding channel (1305) move longitudinally as a whole to feed materials in an orderly and comprehensive manner.

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