Fry deep-sea culture net cage

Abstract

The invention relates to the field of aquaculture net cages, in particular to a fry deep-sea aquaculture net cage which comprises a traction machine and a diving support, a barrel-shaped net cage is fixedly arranged at the bottom of the diving support, a cage cover is arranged at the top end of the barrel-shaped net cage, multiple sets of pull ropes are connected to the bottom of the traction machine, and balancing weights are fixedly arranged at the bottoms of the pull ropes. A plurality of positioning assemblies are arranged in the diving support, each pull rope penetrates through the corresponding positioning assembly, a driving motor is fixedly arranged at the top of the box cover, a storage bin is arranged at the bottom of the box cover, the output end of the driving motor is connected with a center shaft, and the bottom end of the center shaft is rotationally matched with the bottom in the cylindrical net cage. A sliding rail for the diving support to adjust the culture depth is formed through the pull rope, the barrel-shaped net cage can be kept stable, meanwhile, the pull rope is locked through the positioning assembly, and adjustment and control over the culture depth of the barrel-shaped net cage are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of aquaculture cages, and in particular to a deep-sea aquaculture cage for fry. Background Art

[0002] Deep-sea aquaculture cages are mainly composed of a frame system, a net bag, a fixing system and supporting facilities. The cage is lowered to a limited underwater depth by utilizing the interaction of the fixed platform and the characteristics of the cage itself. Deep-sea aquaculture cages have the advantages of high strength, good flexibility, corrosion resistance, and anti-aging. They also have strong wind and wave resistance, excellent water quality, high aquaculture efficiency, and easy management. They have been widely used in deep-sea aquaculture fields around the world.

[0003] At present, when deep-sea aquaculture cages are used to culture different types of fish fry, the cages need to be submerged to a suitable depth so that the water quality at the corresponding depth can promote the growth and development of the cultured fish. However, in the prior art, it is difficult to adjust the diving depth of the aquaculture cages, and the stability of the cages in the deep sea is not high. Summary of the invention

[0004] The purpose of the present invention is to provide a deep-sea fish fry culture cage to solve the above-mentioned technical problems.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A fish fry deep-sea breeding cage comprises a tractor and a submersible support, a cylindrical cage is fixedly arranged at the bottom of the submersible support, a cage cover is arranged at the top of the cylindrical cage, a plurality of groups of pull ropes are connected to the bottom of the tractor, a counterweight is fixedly arranged at the bottom of the pull ropes, a plurality of groups of positioning components are arranged inside the submersible support, each group of the pull ropes passes through a corresponding positioning component, a driving motor is fixedly arranged on the top of the cage cover, a storage bin is arranged at the bottom of the cage cover, a central shaft is connected to the output end of the driving motor, and the bottom end of the central shaft is rotatably matched with the bottom of the cylindrical cage.

[0006] The positioning assembly includes a threading shaft and a transmission shaft, the threading shaft is hollow, a positioning plate is fixedly provided at the bottom of the threading shaft, an arc groove is penetrated on the positioning plate, a synchronous gear is fixedly provided at the bottom of the transmission shaft, a driving toothed belt is provided between the synchronous gears, a synchronous belt is provided between the transmission shaft and the threading shaft, a plurality of groups of radially slidable sliding blocks are evenly arranged below the positioning plate, a positioning block is provided on the inner wall of each group of sliding blocks, a sliding pin is fixedly provided on the top of the sliding block, and the sliding pin is adapted to be slidably installed in the corresponding arc groove, the pull rope penetrates the threading shaft and passes between the positioning blocks, a servo motor is fixedly provided at the bottom end of the submersible bracket, and the output end of the servo motor is connected to one of the groups of transmission shafts.

[0007] As a further solution of the present invention: a receiving groove is arranged inside the submersible bracket along the drive toothed belt, the drive toothed belt is installed in the receiving groove, a rotation groove one and a rotation groove two are respectively arranged inside the submersible bracket, the threading shaft is rotatably installed in the rotation groove one, the transmission shaft is rotatably installed in the rotation groove two, a plurality of groups of sliding grooves are radially arranged at the bottom of the rotation groove one, and the sliding block is adapted to be slidably installed in the corresponding sliding groove.

[0008] As a further solution of the present invention: a sealing sleeve is fixedly provided at the second top end of the rotating groove, and a return spring is provided between the sliding block and the sliding groove.

[0009] As a further solution of the present invention: a feed hole 1 is penetrated through the bottom of the storage bin, two groups of feed hole sealing plates are spaced apart on the outside of the central axis, the two groups of feed hole sealing plates are respectively rotatably matched with the upper and lower ends of the bottom of the storage bin, and a feed hole 2 corresponding to the feed hole 1 is penetrated through the feed hole sealing plate.

[0010] As a further solution of the present invention: a discharge pipe is extended downward from the bottom of the storage bin, the discharge hole is connected to the discharge pipe, a stirring plate and a spiral discharge plate are fixedly provided on the outside of the central axis, the stirring plate is located in the storage bin, and the spiral discharge plate is adapted to be installed in the discharge pipe.

[0011] As a further solution of the present invention: a plurality of groups of rotating brackets are fixedly connected to the outer side of the central axis through connecting rods, and a cleaning roller is rotatably installed in each group of the rotating brackets. The cleaning roller rolls against the inner wall of the cylindrical net box, and the upper and lower ends of the cleaning roller shaft are sleeved with matching gears. The inner wall of the cylindrical net box is circumferentially provided with internal tooth grooves, and the matching gears are gear-engaged with the corresponding internal tooth grooves.

[0012] Beneficial effects of the present invention: (1) By setting a positioning component, when adjusting the aquaculture depth of the cylindrical cage, a tensioned pull rope is used to form a limit track for the diving bracket to dive and move. When diving, there is no squeezing contact between the positioning block and the pull rope. At this time, the diving bracket and the cylindrical cage will move downward along the pull rope under the action of gravity. When diving to the specified depth, the servo motor drives the transmission shaft to rotate, and the synchronous gear drives other transmission shafts to rotate synchronously through the driving toothed belt. When the transmission shaft rotates, it will drive the corresponding threading shaft to rotate through the synchronous belt. The threading shaft will drive the positioning plate to rotate. By using the sliding cooperation between the arc groove and the sliding pin, the positioning plate will drive multiple groups of sliding blocks to slide synchronously radially until the positioning block extends and contacts the squeeze pull rope. The multiple groups of positioning blocks will be simultaneously pressed against the pull rope and locked, so that the cylindrical cage stops diving and reaches the specified aquaculture depth, thereby realizing the adjustment and control of the aquaculture depth of the cylindrical cage.

[0013] (2) By setting up two sets of upper and lower feeding sealing plates, when the driving motor drives the central shaft to rotate, the feeding sealing plates will rotate on the upper and lower end surfaces of the bottom of the storage bin respectively. During the rotation process, the feeding hole 1 will intermittently overlap with the feeding hole 2. When the two holes are aligned, the feed will enter the discharge pipe from the storage bin, thereby realizing the intermittent feeding process. When the feeding hole 1 and the feeding hole 2 are staggered, the upper and lower feeding sealing plates will block and close the feeding hole 1 at both ends, thereby realizing the sealing process of the storage bin, avoiding feed leakage, and facilitating the feed in the storage bin to keep dry.

[0014] (3) By setting a cleaning roller, during the feeding process, the central axis will synchronously drive the rotating bracket to rotate, so that the cleaning roller can be close to the inner wall of the cylindrical net box and revolve around the axis. At the same time, the gear rotates and meshes along the internal tooth groove, so that the cleaning roller can realize self-rotation while revolving. The continuously rotating cleaning roller can effectively scrape and clean the parasitic shellfish and seaweed attached to the inner wall of the cylindrical net box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the submersible support in the present invention.

[0018] Figure 3 It is a structural schematic diagram of the positioning component in the present invention.

[0019] Figure 4 It is a structural schematic diagram of the sliding block in the present invention.

[0020] Figure 5 It is a schematic diagram of the internal structure of the submersible support in the present invention.

[0021] Figure 6 It is a schematic diagram of the internal structure of the cylindrical net box in the present invention.

[0022] Figure 7 yes Figure 6 A schematic diagram of the enlarged structure at point A in the middle.

[0023] Figure 8 yes Figure 6 A magnified schematic diagram of the structure at point B in the middle.

[0024] Fig. 9 It is a structural schematic diagram of the central axis in the present invention.

[0025] In the figure: 1, traction machine; 2, pull rope; 3, counterweight; 4, submersible support; 401, receiving slot; 402, rotating slot 1; 403, sliding slot; 404, rotating slot 2; 5, cylindrical net box; 51, inner tooth slot; 6, box cover; 61, storage bin; 611, feeding hole 1; 612, discharge pipe; 7, driving motor; 8, positioning assembly; 81, threading shaft; 811, positioning plate; 812, arc slot; 82. Transmission shaft; 821. Synchronous gear; 822. Synchronous belt; 83. Driving toothed belt; 84. Servo motor; 85. Sliding block; 851. Positioning block; 852. Sliding pin; 853. Reset spring; 86. Sealing sleeve; 9. Center shaft; 91. Unloading sealing plate; 911. Unloading hole 2; 92. Stirring plate; 93. Spiral discharge plate; 94. Rotating bracket; 95. Cleaning roller; 96. Matching gear. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0027] See also Figure 1 and Figure 2 As shown, the present invention is a fish fry deep-sea breeding cage, comprising a tractor 1 and a submersible support 4, a cylindrical cage 5 is fixedly arranged at the bottom of the submersible support 4, a cage cover 6 is arranged at the top of the cylindrical cage 5, a plurality of groups of pull ropes 2 are connected to the bottom of the tractor 1, a counterweight 3 is fixedly arranged at the bottom of the pull rope 2, a plurality of groups of positioning components 8 are arranged inside the submersible support 4, each group of pull ropes 2 passes through the corresponding positioning components 8, a driving motor 7 is fixedly arranged on the top of the cage cover 6, a storage bin 61 is arranged at the bottom of the cage cover 6, a central shaft 9 is connected to the output end of the driving motor 7, and the bottom end of the central shaft 9 is rotatably matched with the bottom of the cylindrical cage 5.

[0028] Specifically, the pull rope 2 always remains vertical under the gravity anchoring action of the counterweight block 3, thereby forming a sliding track for the submersible support 4 when adjusting the breeding depth. In this example, three groups of pull ropes 2 are provided, so the positioning components 8 are also correspondingly provided with three groups. During use, the cylindrical net box 5 will gradually dive along the pull rope 2 along the submersible support 4. When diving, the three groups of pull ropes 2 form a stable track structure with triangular support, so that the cylindrical net box 5 can remain stable and not shake during the diving process. When diving to the specified breeding depth, it is locked and positioned by the positioning component 8, thereby realizing the adjustment and control of the breeding depth of the cylindrical net box 5.

[0029] It should be noted that the traction machine 1 in this embodiment includes a winding roller and a winding motor, one end of the pull rope 2 is wound around the winding roller, and the winding and unwinding of the pull rope 2 is controlled by the winding motor. The specific structure and working principle of the above-mentioned traction machine 1 are known in the prior art and will not be elaborated here.

[0030] like Figure 3 , Figure 4 and Figure 5 As shown, the positioning assembly 8 includes a threading shaft 81 and a transmission shaft 82. The threading shaft 81 is hollow, and a positioning plate 811 is fixedly arranged at the bottom of the threading shaft 81. An arc groove 812 is penetrated on the positioning plate 811. A synchronous gear 821 is fixedly arranged at the bottom of the transmission shaft 82. A driving toothed belt 83 is arranged between the synchronous gears 821, and a synchronous belt 822 is arranged between the transmission shaft 82 and the threading shaft 81. A plurality of groups of radially slidable sliding blocks 85 are evenly arranged below the positioning plate 811. A positioning block 851 is arranged on the inner wall of each group of sliding blocks 85. A sliding pin 852 is fixedly arranged on the top of the sliding block 85. The sliding pin 852 is adapted to be slidably installed in the corresponding arc groove 812. The pull rope 2 penetrates the threading shaft 81 and passes between the positioning blocks 851. A servo motor 84 is fixedly arranged at the bottom end of the submersible bracket 4, and the output end of the servo motor 84 is connected to one of the groups of transmission shafts 82.

[0031] Specifically, by setting the positioning assembly 8, when adjusting the breeding depth of the cylindrical net cage 5, the tensioned pull rope 2 is used to form a limit track for the submersible support 4 to move downward. When diving, the positioning block 851 and the pull rope 2 are not squeezed and contacted. At this time, the submersible support 4 and the cylindrical net cage 5 will move downward along the pull rope 2 under the action of gravity. When diving to the specified depth, the servo motor 84 drives the transmission shaft 82 to rotate, and the synchronous gear 821 drives the other transmission shafts 82 to rotate synchronously through the driving toothed belt 83. The transmission shaft 82 When rotating, the corresponding threading shaft 81 will be driven to rotate through the synchronous belt 822, and the threading shaft 81 will drive the positioning plate 811 to rotate. By utilizing the sliding cooperation between the arc groove 812 and the sliding pin 852, the positioning plate 811 will drive multiple groups of sliding blocks 85 to slide radially synchronously until the positioning blocks 851 extend out and contact the extrusion rope 2. The multiple groups of positioning blocks 851 will be simultaneously abutted and locked with the rope 2, so that the cylindrical net box 5 stops diving and reaches the specified breeding depth, thereby realizing the adjustment and control of the breeding depth of the cylindrical net box 5.

[0032] like Figure 5 , Figure 6 and Figure 7As shown, a receiving groove 401 is provided inside the submersible bracket 4 along the driving toothed belt 83, and the driving toothed belt 83 is installed in the receiving groove 401. A rotating groove 1 402 and a rotating groove 2 404 are respectively provided inside the submersible bracket 4. The threading shaft 81 is rotatably installed in the rotating groove 1 402, and the transmission shaft 82 is rotatably installed in the rotating groove 2 404. A plurality of groups of sliding grooves 403 are radially provided at the bottom of the rotating groove 1 402, and the sliding block 85 is adapted to be slidably installed in the corresponding sliding groove 403.

[0033] Furthermore, a sealing sleeve 86 is fixedly disposed on the top of the second rotating groove 404 , and a return spring 853 is disposed between the sliding block 85 and the sliding groove 403 .

[0034] Specifically, the accommodating groove 401 provides a limiting and guiding function for the driving toothed belt 83, so that the driving toothed belt 83 can transmit and move in the correct direction within the accommodating groove 401; the rotating groove 1 402 and the rotating groove 2 404 respectively provide installation and activity space for the threading shaft 81 and the transmission shaft 82; the sealing sleeve 86 can provide a rotational support for the transmission shaft 82 to prevent the transmission shaft 82 from escaping from the rotating groove 2 404; when the sliding block 85 slides radially in the sliding groove 403, it will drive the reset spring 853 to expand and contract and deform, and use the elastic force of the reset spring 853 to restore the deformation to assist the sliding block 85 to quickly reset.

[0035] like Figure 8 and Fig. 9 As shown, a feed hole 611 is provided through the bottom of the storage bin 61, and two groups of feed hole sealing plates 91 are provided at intervals on the outer side of the central axis 9. The two groups of feed hole sealing plates 91 are respectively rotatably matched with the upper and lower ends of the bottom of the storage bin 61, and a feed hole 911 corresponding to the feed hole 611 is provided through the feed hole sealing plate 91.

[0036] Specifically, by setting up two sets of upper and lower feeding sealing plates 91, when the driving motor 7 drives the central shaft 9 to rotate, the feeding sealing plates 91 will rotate on the upper and lower end surfaces of the bottom of the storage bin 61 respectively, and during the rotation process, the feeding hole 1 611 will intermittently overlap and match with the feeding hole 2 911, and the feed will enter the discharge pipe 612 from the storage bin 61 when the two holes are aligned, thereby realizing the intermittent feeding process, and when the feeding hole 1 611 is staggered with the feeding hole 2 911, the upper and lower sets of feeding sealing plates 91 will block and close the feeding hole 1 611 at the upper and lower ends, thereby realizing the sealing process of the storage bin 61, avoiding feed leakage, and facilitating the feed in the storage bin 61 to keep dry.

[0037] like Fig. 9As shown, a discharge pipe 612 is extended downward from the bottom of the storage bin 61, and a discharge hole 611 is connected to the discharge pipe 612. A stirring plate 92 and a spiral discharge plate 93 are fixedly provided on the outside of the central axis 9. The stirring plate 92 is located in the storage bin 61, and the spiral discharge plate 93 is adapted to be installed in the discharge pipe 612.

[0038] Specifically, during the rotation of the central shaft 9, the stirring plate 92 will drive the feed stirring plate 92 to stir the feed in the storage bin 61, thereby breaking up the feed and preventing the feed from accumulating and agglomerating in the bin. At the same time, the spiral discharge plate 93 will also perform a spiral discharge process on the feed entering the discharge pipe 612.

[0039] like Fig. 9 As shown, multiple groups of rotating brackets 94 are fixedly connected to the outer side of the central axis 9 through connecting rods, and a cleaning roller 95 is rotatably installed in each group of rotating brackets 94. The cleaning roller 95 rolls against the inner wall of the cylindrical net box 5, and the upper and lower ends of the roller shaft of the cleaning roller 95 are sleeved with matching gears 96. The inner wall of the cylindrical net box 5 is circumferentially provided with internal tooth grooves 51, and the matching gears 96 are gear-engaged with the corresponding internal tooth grooves 51.

[0040] Specifically, by providing a cleaning roller 95, during the material unloading process, the central shaft 9 will synchronously belt 822 to drive the rotating bracket 94 to rotate, so that the cleaning roller 95 can be close to the inner wall of the cylindrical net box 5 to revolve around the axis, and at the same time, the gear 96 rotates and meshes along the inner tooth groove 51, so that the cleaning roller 95 can realize self-rotation while revolving, and the continuously rotating cleaning roller 95 can be used to effectively scrape and clean the parasitic shellfish and seaweed attached to the inner wall of the cylindrical net box 5.

[0041] The working principle of the present invention is as follows: Figure 1-Figure 9As shown, when in use, the pull rope 2 is lowered by the traction machine 1, and the pull rope 2 is always kept vertically taut under the gravity anchoring action of the counterweight block 3, thereby forming a sliding track for the submersible support 4 when adjusting the breeding depth. When diving, there is no extrusion contact between the positioning block 851 and the pull rope 2. At this time, the submersible support 4 and the cylindrical net cage 5 will move downward along the pull rope 2 under the action of gravity. When diving to the specified depth, the servo motor 84 drives the transmission shaft 82 to rotate, and at the same time, the synchronous gear 821 drives the other transmission shafts 82 to rotate synchronously through the driving toothed belt 83. When the transmission shaft 82 rotates, it will drive the corresponding threading shaft 81 to rotate through the synchronous belt 822, and the threading shaft 81 will drive the positioning plate 811 to rotate. By utilizing the sliding cooperation between the arc groove 812 and the sliding pin 852, the positioning plate 811 will drive the multiple groups of sliding blocks 85 to slide radially synchronously until the positioning blocks 851 extend out and contact the extrusion rope 2, and the multiple groups of positioning blocks 851 will be simultaneously abutted and locked with the rope 2, so that the cylindrical net cage 5 stops diving and reaches the specified breeding depth, thereby realizing the adjustment and control of the breeding depth of the cylindrical net cage 5. When feeding, the driving motor 7 drives the central shaft 9 to rotate, and the feed discharge sealing plate 91 will rotate on the upper and lower end surfaces of the bottom of the storage bin 61 respectively. During the rotation, the feed discharge hole 1 611 will intermittently overlap and match with the feed discharge hole 2 911, and the feed will enter the discharge pipe 612 from the storage bin 61 when the two holes are aligned, thereby realizing an intermittent feeding process. When the feed discharge hole 1 611 and the feed discharge hole 2 911 are staggered, the upper and lower groups of feed discharge sealing plates 91 will block and close the feed discharge hole 1 611 at the upper and lower ends, thereby realizing the sealing process of the storage bin 61 and preventing feed leakage. During the unloading process, the central shaft 9 drives the rotating bracket 94 with the synchronous belt 822 to rotate, so that the cleaning roller 95 can be close to the inner wall of the cylindrical net box 5 and revolve around the axis, and at the same time, the gear 96 rotates and meshes along the inner tooth groove 51, so that the cleaning roller 95 can realize self-rotation while revolving, and the continuously rotating cleaning roller 95 can be used to effectively scrape and clean the parasitic shellfish and seaweed attached to the inner wall of the cylindrical net box 5.

[0042] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A fish fry deep-sea aquaculture cage, comprising a tractor (1) and a submersible support (4), a cylindrical cage (5) being fixedly arranged at the bottom of the submersible support (4), and a cage cover (6) being arranged at the top of the cylindrical cage (5), characterized in that: The bottom of the traction machine (1) is connected to a plurality of groups of pull ropes (2), the bottom of the pull ropes (2) is fixedly provided with a counterweight (3), the inside of the submerged support (4) is provided with a plurality of groups of positioning components (8), each group of the pull ropes (2) passes through a corresponding positioning component (8), a driving motor (7) is fixedly provided on the top of the box cover (6), a storage bin (61) is provided at the bottom of the box cover (6), the output end of the driving motor (7) is connected to a central shaft (9), and the bottom end of the central shaft (9) is rotatably matched with the bottom of the cylindrical net box (5); The positioning assembly (8) comprises a threading shaft (81) and a transmission shaft (82); the threading shaft (81) is hollow; a positioning plate (811) is fixedly arranged at the bottom of the threading shaft (81); an arc-shaped groove (812) is penetrated through the positioning plate (811); a synchronous gear (821) is fixedly arranged at the bottom of the transmission shaft (82); a driving toothed belt (83) is arranged between the synchronous gears (821); a synchronous belt (822) is arranged between the transmission shaft (82) and the threading shaft (81); and a positioning plate (811) is provided below the positioning plate (811). A plurality of groups of radially slidable sliding blocks (85) are evenly arranged, and a positioning block (851) is arranged on the inner wall of each group of the sliding blocks (85). A sliding pin (852) is fixedly arranged on the top of the sliding block (85), and the sliding pin (852) is adapted to be slidably installed in the corresponding arc groove (812). The pull rope (2) passes through the threading shaft (81) and passes between the positioning blocks (851). A servo motor (84) is fixedly arranged at the bottom end of the submerged bracket (4), and the output end of the servo motor (84) is connected to one of the transmission shafts (82).

2. A fish fry deep-sea breeding cage according to claim 1, characterized in that: The submersible support (4) is provided with a receiving groove (401) along the drive toothed belt (83), the drive toothed belt (83) is installed in the receiving groove (401), and the submersible support (4) is provided with a rotating groove 1 (402) and a rotating groove 2 (404) respectively. The threading shaft (81) is rotatably installed in the rotating groove 1 (402), and the transmission shaft (82) is rotatably installed in the rotating groove 2 (404). A plurality of groups of sliding grooves (403) are radially arranged at the bottom of the rotating groove 1 (402), and the sliding block (85) is adapted to be slidably installed in the corresponding sliding groove (403).

3. A fish fry deep-sea breeding cage according to claim 2, characterized in that: A sealing sleeve (86) is fixedly provided at the top of the second rotating groove (404), and a return spring (853) is provided between the sliding block (85) and the sliding groove (403).

4. The deep-sea fish fry breeding cage according to claim 1, characterized in that: A first material discharge hole (611) is provided through the bottom of the storage bin (61), and two groups of material discharge sealing plates (91) are provided at intervals outside the central axis (9). The two groups of material discharge sealing plates (91) are rotatably matched with the upper and lower ends of the bottom of the storage bin (61) respectively, and a second material discharge hole (911) corresponding to the first material discharge hole (611) is provided through the material discharge sealing plate (91).

5. A fish fry deep-sea breeding cage according to claim 4, characterized in that: A discharge pipe (612) is provided at the bottom of the storage bin (61) extending downward, and the discharge hole 1 (611) is connected to the discharge pipe (612). A stirring plate (92) and a spiral discharge plate (93) are fixedly provided on the outside of the central axis (9). The stirring plate (92) is located in the storage bin (61), and the spiral discharge plate (93) is adapted to be installed in the discharge pipe (612).

6. A fish fry deep-sea breeding cage according to claim 5, characterized in that: The outer side of the central shaft (9) is fixedly connected to a plurality of groups of rotating brackets (94) via connecting rods. A cleaning roller (95) is rotatably mounted in each group of the rotating brackets (94). The cleaning roller (95) rolls against the inner wall of the cylindrical net box (5). The upper and lower ends of the roller shaft of the cleaning roller (95) are sleeved with matching gears (96). The inner wall of the cylindrical net box (5) is circumferentially provided with internal tooth grooves (51), and the matching gears (96) are toothedly matched with the corresponding internal tooth grooves (51).

Images