Crayfish three-dimensional rice field breeding system and breeding method

Abstract

The invention discloses a three-dimensional rice field breeding system and method for crayfishes. The breeding system comprises a breeding box, a feeding assembly and an anti-escape assembly. A barrier net plate and a climbing frame are arranged in the breeding box; the feeding assembly is arranged above the breeding box and is used for uniformly throwing breeding baits into the breeding box; the anti-escape assembly is arranged at the top end of the breeding box and used for preventing the crayfish from climbing out of the breeding box to cause economic loss; the breeding system is reasonable in structural design, a win-win situation of rice and lobsters can be achieved by breeding the lobsters in the rice field, harmful insects in the rice field can be killed by means of the omnivorous characteristic of the lobsters, use of pesticides is reduced, and growth of the rice is more environmentally friendly; meanwhile, excrement of the crayfish can provide fertilizer for growth of the rice, the planting cost of the rice is reduced, the breeding cost of the crayfish is also reduced, and the method is suitable for large-scale application and popularization.

Description

Technical Field

[0001] The present invention relates to the technical field of crayfish breeding, and in particular to a three-dimensional rice field breeding system and a breeding method for crayfish. Background Art

[0002] The scientific name of crayfish is Procambarus clarkii, which belongs to the class of crustaceans, order of decapod, family of crayfish. Crayfish are omnivorous, grow fast, have delicious meat, and can be cooked in a variety of ways. They are very popular among consumers and are an important freshwater aquaculture economic variety in the middle and lower reaches of the Yangtze River in my country. Rice fields are the best habitat for freshwater crayfish. The middle and lower reaches of the Yangtze River in my country have vast rice fields, rich water resources, and relatively developed economic and technological development. Therefore, rice field farming of crayfish has the greatest development potential.

[0003] However, in the prior art, the yield of crayfish cultured in rice fields is generally low, and young crayfish are very likely to die in rice fields; at the same time, the existing crayfish rice field culture system has a low crayfish yield. When the biomass of aquatic plants in rice fields is low, it is not conducive to the crayfish to climb, live and hide, which affects the crayfish's molting and increases the chance of cannibalism; furthermore, the existing culture system is inconvenient to put bait, and the bait intake of individual crayfish varies greatly, which is not conducive to the growth of crayfish. Summary of the invention

[0004] In view of the above-mentioned technical problems, the present invention provides a three-dimensional rice field culture system and a culture method for crayfish.

[0005] The technical solution of the present invention is: a three-dimensional rice field breeding system for crayfish, comprising a breeding box, a feeding assembly movably arranged at the top of the breeding box, and an anti-escape assembly arranged at the top of the breeding box and below the feeding assembly; a water inlet trough is provided through the side wall of the breeding box, a barrier mesh plate and a climbing frame are provided inside the breeding box, and a mounting pressure plate is movably connected to the top of the breeding box;

[0006] The feeding assembly includes sliding guide seats arranged on both sides of the upper end surface of the mounting plate, clamping seats respectively corresponding to and slidingly clamped on the two sliding guide seats, a bait box arranged between the two clamping seats, a stirring frame rotatably clamped inside the bait box, and a stirring motor arranged on the outer wall of the bait box and providing power for the stirring frame; a plurality of feeding pipes are arranged at the bottom end of the bait box;

[0007] The anti-escape component comprises a plurality of rotating rods which are equidistantly distributed inside the mounting platen and an intermittent motor which is arranged on the upper end surface of the mounting platen and provides power to each rotating rod at the same time.

[0008] Furthermore, a filter box is sleeved on the outer wall of the breeding box, and the filter box is filled with water purification filter material; the installation pressure plate is movably connected with the top of the filter box;

[0009] Description: Use water purification filter material to filter the water flow in the rice field to ensure the cleanliness of the water for crayfish breeding and promote the healthy growth of crayfish; the water purification filter material uses quartz sand filter material with a particle size of 2 to 5 mm.

[0010] Furthermore, a salvage cage is arranged inside the breeding box and above the barrier mesh plate, and a lifting lug is arranged on the top of the salvage cage; the climbing frame is fixedly connected to the salvage cage;

[0011] Description: By setting up a salvage cage, it is easier to catch adult shrimps, which improves the convenience of catching adult shrimps and improves work efficiency.

[0012] Furthermore, a baffle is provided below the bait box, and a sealing plug which can be movably engaged with each feeding tube is provided on the upper surface of the baffle, and push rods which are slidably engaged with the inner wall of the bait box are provided at both ends of the baffle, and compression springs which abut against the inner wall of the bait box are sleeved on the two push rods; and eccentric turntables which abut against the push rods at corresponding positions are sleeved on both ends of the stirring frame;

[0013] Description: The rotation of the stirring frame drives the eccentric turntable to rotate, so that the push rod pushes the baffle to reciprocate under the bait box. At this time, the sealing plug intermittently detaches from the feeding pipe, so that the breeding bait can be intermittently fed into the breeding box, which is beneficial to improve the uniformity of the distribution of the bait inside the feed box and can provide sufficient bait for crayfish.

[0014] Furthermore, the two eccentric rotating discs are slidably connected to the stirring frame, and the two eccentric rotating discs are slidably connected with adjustment sleeves; levers are arranged inside the two sides of the bait box and are connected to the two adjustment sleeves one by one;

[0015] Note: When the stirring frame is rotating, use the lever to move the adjusting sleeve and the eccentric turntable to slide on the stirring frame at the same time, and make the eccentric turntable contact with the push rod.

[0016] Furthermore, several cleaning branch pipes are arranged in parallel at the bottom of the breeding box, and suction nozzles are arranged on both sides of each cleaning branch pipe. A collecting pipe which is connected to each cleaning branch pipe is arranged on one side of the breeding box, and a sludge pump connected to the collecting pipe is arranged on the mounting plate;

[0017] Note: The excrement of crayfish is deposited at the bottom of the breeding box. At this time, turn on the sludge pump, and the excrement enters the cleaning branch pipe through the suction nozzle, and is discharged from the breeding box through the collecting pipe under the action of the sludge pump, ensuring the cleanliness of the breeding water.

[0018] Furthermore, a transfer cylinder penetrating the installation plate is provided inside the filter box; the transfer cylinder is connected to the collecting pipe and the sludge pump respectively, a drainage hole is provided on the side wall of the transfer cylinder, and a discharge pipe is provided on the upper end of the outer wall of the transfer cylinder; a lifting screw is rotatably connected inside the transfer cylinder;

[0019] Description: The crayfish excrement at the bottom of the breeding box enters the transfer cylinder under the action of the sludge pump. At this time, the lifting screw is started. During the above process inside the lifting screw, the water in the crayfish excrement is discharged through the drainage hole under the squeezing action of the lifting screw, and the solid excrement is discharged through the discharge pipe and used as fertilizer for rice growth.

[0020] The present invention also provides a three-dimensional rice field breeding method for crayfish, based on the above-mentioned three-dimensional rice field breeding system for crayfish, comprising the following steps:

[0021] S1. Dig a breeding ditch inside the rice field, and then put the breeding box into the breeding ditch;

[0022] S2, injecting water into the rice field, the water flows into the culture box through the water inlet trough, and then putting shrimp fry into the culture box; the amount of shrimp fry put in is 2500 to 5500 per mu;

[0023] S3, adding aquaculture bait into the bait box, and using the stirring motor to drive the stirring frame to rotate, stirring the aquaculture bait; then the bait box moves on the sliding guide seat, so that the aquaculture bait is put into the aquaculture water body through the feeding pipe for shrimp fry to eat; wherein, the amount of aquaculture bait put in is 100-120kg / mu, and the aquaculture bait is prepared by mixing fish meal, earthworm meal, silver carp viscera powder and peanut meal in a mass ratio of 3:5:2:4;

[0024] S4. During the growth of shrimp fry, the shrimp fry can move inside the breeding box along the climbing frame; the excrement of the shrimp fry enters the bottom of the breeding box through the barrier mesh plate and is collected;

[0025] S5, using the intermittent motor (31) to drive each rotating rod (30) to reciprocate inside the mounting plate (13) to prevent the shrimp seedlings from escaping from the breeding box (1);

[0026] S6. After 40 to 60 days of shrimp fry culture, the adult shrimp will be harvested when their weight exceeds 30g. The adult shrimp that do not meet the harvesting requirements will continue to be fed and cultured.

[0027] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0028] First, the aquaculture system of the present invention has a reasonable structural design. Cultivating crayfish in rice fields can achieve a win-win situation for rice and crayfish. The omnivorous characteristics of crayfish can eliminate harmful insects in rice fields, reduce the use of pesticides, and make the growth of rice more green and environmentally friendly. At the same time, the excrement of crayfish can provide fertilizer for the growth of rice, which reduces the cost of rice planting and the cost of crayfish cultivation.

[0029] Second, the breeding system of the present invention can realize the three-dimensional distribution of crayfish in the limited breeding box by arranging a climbing frame inside the breeding box. The decentralized breeding method can effectively avoid the situation where crayfish kill each other and snatch bait due to cluster distribution, thereby increasing the yield of crayfish;

[0030] Third, the present invention can evenly put the breeding bait into the breeding water by arranging a feeding assembly above the breeding box, thereby providing sufficient bait for the growth of crayfish, which is beneficial to the growth of crayfish;

[0031] Fourth, the present invention arranges an anti-escape component above the breeding box. When the crayfish climbs onto the rotating rod, the rotating rod is in a reciprocating swinging state and the crayfish falls into the water body, thereby preventing the crayfish from climbing out of the breeding box and causing economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a longitudinal section of the breeding system of the present invention;

[0033] Figure 2 is a front view of the breeding system of the present invention;

[0034] Figure 3 It is a distribution diagram of the climbing frame and the salvage cage of the present invention inside the breeding box;

[0035] Figure 4 is a top view of the breeding system of the present invention;

[0036] Figure 5 is a schematic structural diagram of a feeding assembly of the present invention;

[0037] Figure 6 The present invention Figure 5 A local enlarged schematic diagram of the middle A;

[0038] Figure 7 It is a schematic diagram of the connection between the rotating rod and the mounting plate of the present invention;

[0039] Figure 8 It is a schematic diagram of the connection between the cleaning branch pipe and the transfer cylinder of the present invention;

[0040] Among them, 1-breeding box, 10-water inlet trough, 11-blocking mesh plate, 12-climbing frame, 13-installing pressure plate, 14-fishing cage, 140-lifting ear, 2-feeding assembly, 20-sliding guide seat, 21-card seat, 22-bait box, 220-movable cover, 221-feeding pipe, 23-stirring frame, 230-eccentric turntable, 231-adjusting sleeve, 232-push rod, 24-stirring motor, 25-baffle, 250-sealing plug, 251-push rod, 2510- Compression spring, 26-push motor, 260-push screw, 3-anti-escape component, 30-rotating rod, 300-connecting gear, 31-intermittent motor, 310-output shaft, 311-incomplete gear, 312-waterproof shell, 32-drive rack, 320-reset spring, 4-filter box, 5-cleaning branch pipe, 50-suction nozzle, 51-collecting pipe, 52-sludge pump, 53-transfer cylinder, 530-drain hole, 531-discharge pipe, 532-lifting screw. DETAILED DESCRIPTION

[0041] Example 1

[0042] like Figure 1 , 3 A three-dimensional rice field breeding system for crayfish is shown, comprising a breeding box 1, a feeding assembly 2 movably arranged at the top of the breeding box 1, and an anti-escape assembly 3 arranged at the top of the breeding box 1 and below the feeding assembly 2; a water inlet trough 10 is provided through the side wall of the breeding box 1, and a barrier mesh plate 11 is provided at the bottom of the breeding box 1 and below the water inlet trough 10; climbing frames 12 are provided on both sides of the breeding box 1 and above the barrier mesh plate 11, and a mounting pressure plate 13 is movably connected to the top of the breeding box 1;

[0043] like Figure 1 , 2 As shown in Figures 4 and 5, the feeding assembly 2 includes sliding guide seats 20 arranged on both sides of the upper end surface of the mounting plate 13, holders 21 respectively and one by one correspondingly slidably connected to the two sliding guide seats 20, a bait box 22 arranged between the two holders 21, a stirring frame 23 rotatably connected to the inside of the bait box 22, and a stirring motor 24 arranged on the outer wall of the bait box 22 and providing power to the stirring frame 23; a movable cover 220 is movably connected to the top of the bait box 22, and 11 feeding pipes 221 are evenly distributed at the bottom;

[0044] like Figure 4 , 7As shown, the anti-escape component 3 includes 13 rotating rods 30 equidistantly distributed inside the mounting pressure plate 13 and an intermittent motor 31 arranged on the upper end surface of the mounting pressure plate 13 and providing power to each rotating rod 30 at the same time; both ends of each rotating rod 30 pass through the mounting pressure plate 13 and are provided with connecting gears 300; driving racks 32 are slidably engaged inside both sides of the mounting pressure plate 13; the two driving racks 32 are respectively meshed and connected with the connecting gears 300 at corresponding positions; the ends of the two driving racks 32 away from the intermittent motor 31 are provided with return springs 320 abutting against the inner wall of the mounting pressure plate 13; output shafts 310 are provided at both ends of the intermittent motor 31, and the two output shafts 310 are connected with incomplete gears 311 meshed and connected with the driving racks 32 at corresponding positions.

[0045] Example 2

[0046] This embodiment describes a three-dimensional rice field breeding method for crayfish, and a three-dimensional rice field breeding system for crayfish based on Embodiment 1, comprising the following steps:

[0047] S1, digging a breeding ditch inside the rice field, and then placing a breeding box 1 into the breeding ditch;

[0048] S2, injecting water into the rice field, the water flows into the culture box 1 through the water inlet trough 10, and then putting shrimp fry into the culture box 1; wherein the amount of shrimp fry put in is 2500 per mu;

[0049] S3, adding aquaculture bait into the bait box 22, and using the stirring motor 24 to drive the stirring frame 23 to rotate, stirring the aquaculture bait; then the bait box 22 moves on the sliding guide seat 20, so that the aquaculture bait is put into the aquaculture water body through the feeding pipe 221 for shrimp fry to eat; wherein, the amount of aquaculture bait put in is 100kg / mu, and the aquaculture bait is mixed and prepared by fish meal, earthworm meal, silver carp viscera powder and peanut meal according to the mass ratio of 3:5:2:4;

[0050] S4, during the growth of shrimp fry, the shrimp fry can move inside the breeding box 1 along the climbing frame 12; the excrement of the shrimp fry enters the bottom of the breeding box 1 through the barrier mesh plate 11 and is collected;

[0051] S5, using the intermittent motor 31 to drive the two incomplete gears 311 to rotate simultaneously, so that the two driving racks 32 move back and forth along the inner wall of the mounting plate 13 under the joint action of the incomplete gears 311 and the return spring 320; at this time, each rotating rod 30 reciprocates under the driving action of the connecting gear 300 to prevent the shrimp seedlings from escaping from the breeding box 1;

[0052] S6. After 40 days of shrimp fry culture, the adult shrimps will be harvested when their weight reaches 40g. The adult shrimps that do not meet the harvesting requirements will continue to be fed and cultured.

[0053] Example 3

[0054] The difference between this embodiment and Example 1 is that 15 feeding tubes 221 are evenly distributed at the bottom of the bait box 22; and 20 rotating rods 30 are provided.

[0055] Example 4

[0056] This embodiment describes a three-dimensional rice field breeding method for crayfish, which is based on a three-dimensional rice field breeding system for crayfish in Embodiment 1, and differs from Embodiment 2 in that:

[0057] In step S2, the amount of shrimp fry released is 5500 per mu;

[0058] In step S3, the amount of feed added is 120 kg / mu.

[0059] In step S6, the shrimp fry are cultured for 60 days.

[0060] Example 5

[0061] The difference between this embodiment and embodiment 1 is that:

[0062] like Figure 1 As shown, a filter box 4 is sleeved on the outer wall of the breeding box 1, and the interior of the filter box 4 is filled with clean water filter material; a pressure plate 13 is installed and movably connected with the top of the filter box 4; the water flow in the rice field is filtered by the clean water filter material, thereby ensuring the cleanliness of the water body for crayfish breeding and promoting the healthy growth of crayfish; the clean water filter material adopts quartz sand filter material with a particle size of 2 to 5 mm.

[0063] Example 6

[0064] This embodiment describes a three-dimensional rice field breeding method for crayfish, which is based on a three-dimensional rice field breeding system for crayfish in Embodiment 5, and differs from Embodiment 2 in that:

[0065] In step S2 , the water flow inside the rice field first enters the filter box 4 , is filtered by the quartz sand filter material, and then enters the breeding box 1 through the water inlet trough 10 .

[0066] Example 7

[0067] The difference between this embodiment and embodiment 5 is that:

[0068] like Figure 3 As shown, a salvage cage 14 is arranged inside the breeding box 1 and above the barrier mesh plate 11, and a lifting lug 140 is arranged on the top of the salvage cage 14; the climbing frame 12 is fixedly connected to the salvage cage 14; by providing the salvage cage 14, it is convenient to catch the adult shrimps, which improves the convenience of catching the adult shrimps and improves the work efficiency.

[0069] Example 8

[0070] This embodiment describes a three-dimensional rice field breeding method for crayfish, and a three-dimensional rice field breeding system for crayfish based on Embodiment 7, which differs from Embodiment 6 in that:

[0071] In step S6, when the adult shrimps are to be caught, the mounting pressure plate 13 is removed, and the fishing cage 14 is hoisted by external equipment to select the adult shrimps that meet the fishing requirements.

[0072] Example 9

[0073] The difference between this embodiment and embodiment 7 is that:

[0074] like Figure 5 , 6 As shown, a baffle 25 is provided under the bait box 22, and a sealing plug 250 is provided on the upper end surface of the baffle 25 which can be movably engaged with each feeding tube 221, and push rods 251 which are slidably engaged with the inner wall of the bait box 22 are provided at both ends of the baffle 25, and compression springs 2510 which abut against the inner wall of the bait box 22 are sleeved on the two push rods 251; both ends of the stirring frame 23 are sleeved with eccentric turntables 230 which abut against the push rods 251 at corresponding positions; the two eccentric turntables 230 are slidably engaged with the stirring frame 23, and the two eccentric turntables 230 are slidably engaged with the two adjusting sleeves 231; levers 232 which are respectively connected to the two adjusting sleeves 231 in a one-to-one manner are provided inside the two sides of the bait box 22; intermittently feeding the bait into the breeding box 1 is beneficial to improving the uniformity of the distribution of the bait inside the feed box, and can provide sufficient bait for crayfish.

[0075] Example 10

[0076] This embodiment describes a three-dimensional rice field breeding method for crayfish, which is based on a three-dimensional rice field breeding system for crayfish in Embodiment 9, and differs from Embodiment 8 in that:

[0077] In step S3, the lever 232 is used to move the adjustment sleeve 231 and the eccentric turntable 230 to slide on the stirring frame 23 at the same time, and the eccentric turntable 230 is brought into contact with the push rod 251; the stirring frame 23 rotates, driving the eccentric turntable 230 to rotate, so that the push rod 251 pushes the baffle 25 to reciprocate under the bait box 22, and at this time, the sealing plug 250 intermittently detaches from the feeding pipe 221, so that the breeding bait can be intermittently fed into the breeding box 1.

[0078] Embodiment 11

[0079] The difference between this embodiment and embodiment 9 is that:

[0080] like Figure 4 , 8As shown, 11 cleaning branch pipes 5 are arranged in parallel at the bottom of the breeding box 1, and suction nozzles 50 are arranged on both sides of each cleaning branch pipe 5. A collecting pipe 51 which is connected to each cleaning branch pipe 5 is arranged on one side of the breeding box 1, and a sludge pump 52 connected to the collecting pipe 51 is arranged on the mounting pressure plate 13; a transfer cylinder 53 which penetrates the mounting pressure plate 13 is arranged inside the filter box 4; the transfer cylinder 53 is respectively connected to the collecting pipe 51 and the sludge pump 52, a drainage hole 530 is penetrated on the side wall of the transfer cylinder 53, and a discharge pipe 531 is arranged on the upper end of the outer wall of the transfer cylinder 53; a lifting screw 532 is rotatably clamped inside the transfer cylinder 53;

[0081] Example 12

[0082] This embodiment describes a three-dimensional rice field breeding method for crayfish, and a three-dimensional rice field breeding system for crayfish based on embodiment 11, which is different from embodiment 10 in that it also includes step S7,

[0083] S7. The excrement of the lobster is deposited at the bottom of the breeding box 1. At this time, the sludge pump 52 is turned on. The excrement enters the cleaning branch pipe 5 through the suction nozzle 50, and passes through the collecting pipe 51 under the action of the sludge pump 52 and enters the transfer cylinder 53. At this time, the lifting screw 532 is started. The crayfish excrement is in the lifting screw 532. In the above process, the water in the excrement is discharged through the drainage hole 530 under the squeezing action of the lifting screw 532, and the solid excrement is discharged through the discharge pipe 531 and used as fertilizer for rice growth.

[0084] Example 13

[0085] The difference between this embodiment and embodiment 11 is that:

[0086] like Figure 4 , 5 As shown, a pushing motor 26 is provided on one of the sliding guide seats 20, and the output end of the pushing motor 26 is connected to a pushing screw 260 threadedly connected to the clamping seat 21 at the corresponding position; the pushing motor 26 is used to drive the pushing screw 260 to rotate, so that the clamping seat 21 drives the bait box 22 to move on the sliding guide seat 20, which is beneficial to improving the convenience of feeding crayfish.

[0087] Embodiment 14

[0088] This embodiment describes a three-dimensional rice field breeding method for crayfish, and a three-dimensional rice field breeding system for crayfish based on embodiment 13, which differs from embodiment 12 in that:

[0089] In step S3 , the push motor 26 is used to drive the push screw 260 to rotate, so that the clamping seat 21 drives the bait box 22 to move on the sliding guide seat 20 .

[0090] Embodiment 15

[0091] The difference between this embodiment and embodiment 13 is that:

[0092] like Figure 4 As shown, a waterproof housing 312 located outside the intermittent motor 31 is provided on the mounting plate 13; the provision of the waterproof housing 312 is beneficial to improving the safety of the intermittent motor 31 and also improves the operational stability of the breeding system.

[0093] It should be noted that the stirring motor 24, the pushing motor 26, the intermittent motor 31, the suction nozzle 5 and the lifting screw 532 used in the present invention all adopt the existing technology, and no special limitation is made here. The corresponding products can be selected according to actual needs.

Claims

1. A three-dimensional rice field breeding system for crayfish, characterized in that: The invention comprises a breeding box (1), a feeding assembly (2) movably arranged at the top of the breeding box (1), and an anti-escape assembly (3) arranged at the top of the breeding box (1) and below the feeding assembly (2); a water inlet trough (10) is provided through the side wall of the breeding box (1), a barrier mesh plate (11) and a climbing frame (12) are provided inside the breeding box (1), and a mounting pressure plate (13) is movably connected to the top of the breeding box (1); The feeding assembly (2) comprises sliding guide seats (20) arranged on both sides of the upper end surface of the mounting plate (13), clamping seats (21) respectively and correspondingly slidably engaged with the two sliding guide seats (20), a bait box (22) arranged between the two clamping seats (21), a stirring frame (23) rotatably engaged with the inside of the bait box (22), and a stirring motor (24) arranged on the outer side wall of the bait box (22) and providing power to the stirring frame (23); a plurality of feeding pipes (221) are arranged at the bottom end of the bait box (22); The anti-escape component (3) comprises a plurality of rotating rods (30) equidistantly distributed inside the mounting platen (13) and an intermittent motor (31) disposed on the upper end surface of the mounting platen (13) and providing power to each of the rotating rods (30) at the same time.

2. A three-dimensional crayfish rice field breeding system according to claim 1, characterized in that: A filter box (4) is sleeved on the outer wall of the breeding box (1), and the interior of the filter box (4) is filled with water purification filter material; the mounting pressure plate (13) is movably engaged with the top of the filter box (4).

3. The three-dimensional rice field breeding system for crayfish according to claim 1, characterized in that: A salvage cage (14) is arranged inside the breeding box (1) and above the barrier mesh plate (11), and a lifting lug (140) is arranged at the top of the salvage cage (14); the climbing frame (12) is fixedly connected to the salvage cage (14).

4. The three-dimensional rice field breeding system for crayfish according to claim 1, characterized in that: A baffle (25) is arranged below the bait box (22), and a sealing plug (250) is arranged on the upper end surface of the baffle (25) which can be movably engaged with each feeding tube (221), and push rods (251) are arranged at both ends of the baffle (25) for sliding engagement with the inner wall of the bait box (22), and the two push rods (251) are both sleeved with compression springs (2510) that abut against the inner wall of the bait box (22); both ends of the stirring frame (23) are sleeved with eccentric turntables (230) that abut against the push rods (251) at corresponding positions.

5. The three-dimensional rice field breeding system for crayfish according to claim 4, characterized in that: The two eccentric rotating disks (230) are both slidably engaged with the stirring frame (23), and the two eccentric rotating disks (230) are both slidably engaged with adjustment sleeves (231); and levers (232) are arranged inside the two sides of the bait box (22) and are respectively connected to the two adjustment sleeves (231) in a one-to-one correspondence.

6. The three-dimensional rice field breeding system for crayfish according to claim 2, characterized in that: A plurality of cleaning branch pipes (5) are arranged in parallel at the bottom of the breeding box (1), and suction nozzles (50) are arranged on both sides of each of the cleaning branch pipes (5). A collecting pipe (51) which is connected to each of the cleaning branch pipes (5) is arranged on one side inside the breeding box (1), and a sludge pump (52) connected to the collecting pipe (51) is arranged on the mounting pressure plate (13).

7. The three-dimensional rice field culture system for crayfish according to claim 6, characterized in that: A transfer cylinder (53) penetrating the mounting pressure plate (13) is arranged inside the filter box (4); the transfer cylinder (53) is connected to the collecting pipe (51) and the sludge pump (52) respectively, a drainage hole (530) is arranged penetratingly on the side wall of the transfer cylinder (53), and a discharge pipe (531) is arranged at the upper end of the outer wall of the transfer cylinder (53); a lifting screw (532) is rotatably clamped inside the transfer cylinder (53).

8. A three-dimensional rice field breeding method for crayfish, based on a three-dimensional rice field breeding system for crayfish according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, digging a breeding ditch inside a rice field, and then placing a breeding box (1) into the breeding ditch; S2, injecting water into the rice field, the water flows into the culture box (1) through the water inlet trough (10), and then releasing shrimp fry into the culture box (1); wherein the amount of shrimp fry released is 2500 to 5500 per mu; S3, adding aquaculture bait into the bait box (22), and using the stirring motor (24) to drive the stirring frame (23) to rotate, so as to stir the aquaculture bait; then, the bait box (22) moves on the sliding guide seat (20), so that the aquaculture bait is put into the aquaculture water body through the feeding pipe (221) for shrimp fry to eat; wherein, the amount of aquaculture bait put in is 100-120 kg / mu, and the aquaculture bait is prepared by mixing fish meal, earthworm meal, silver carp viscera powder and peanut meal in a mass ratio of 3:5:2:4; S4, during the growth of the shrimp fry, the shrimp fry can move along the climbing frame (12) inside the culture box (1); the excrement of the shrimp fry enters the bottom of the culture box (1) through the barrier mesh plate (11) and is collected; S5, using the intermittent motor (31) to drive each rotating rod (30) to reciprocate inside the mounting plate (13) to prevent the shrimp seedlings from escaping from the breeding box (1); S6. After 40 to 60 days of shrimp fry culture, the adult shrimp will be harvested when their weight exceeds 30g. The adult shrimp that do not meet the harvesting requirements will continue to be fed and cultured.

9. A three-dimensional rice field breeding system for crayfish according to claim 8, characterized in that: The breeding box (1) is provided with a filter box (4).

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