Automatic microparticle feed feeding device capable of improving survival rate of marine fish fries

Abstract

The invention discloses an automatic microparticle feed feeding device capable of improving the survival rate of marine fries, and belongs to the technical field of marine aquaculture engineering.The device comprises a feeding box, a driving motor is arranged at the upper end of the feeding box, a stirring assembly connected with the driving motor is arranged in the feeding box, and the stirring assembly comprises a rotating shaft connected with an output shaft of the driving motor; the rotating shaft is sequentially sleeved with connecting sleeves at intervals, at least two stirring blades parallel to the axis of the rotating shaft are arranged on the outer side of the rotating shaft, the outer sides of the connecting sleeves are connected with the stirring blades through connecting battens, and spiral blades surround the outer side of the bottom of the rotating shaft. Feed can be uniformly dispersed, caking and deterioration are effectively prevented, and the feeding height can be adjusted according to the water level change.

Description

Technical Field

[0001] This invention relates to the field of marine aquaculture engineering technology, specifically to an automatic micro-particle feed dispensing device for improving the survival rate of marine fish fry. Background Technology

[0002] The rearing of marine fish fry is a crucial link in the aquaculture industry chain, and the survival rate of the fry directly determines the aquaculture benefits and the scale of the industry. With the promotion of intensive aquaculture models, micro-particle feed, due to its characteristics of particle size matching the fry's mouthparts, high nutrient density, and ease of industrial production, has gradually replaced traditional live feed as the core feed type for marine fish fry rearing. However, existing feeding methods generally suffer from insufficient feeding uniformity. Manual feeding is not only labor-intensive and inefficient, but also difficult to accurately control the feeding amount and area, easily leading to localized feed accumulation or sparse distribution. Furthermore, because micro-particle feed itself has a small particle size, it is extremely prone to clumping due to moisture absorption and compression during storage and feeding. Existing automatic feeding devices mostly have a single-blade stirring mechanism, which lacks sufficient stirring force and has poor dispersion effect, failing to effectively break up clumped feed. Furthermore, most feeding devices need to be fixed to shore supports or underwater bases, making it impossible to adjust the feeding height according to water level changes, and they are also inconvenient to move. To address these issues, there are existing technologies, such as KR102607604B1, which provides an automatic feeding device for aquaculture farms. This device consists of the following parts: a main body, an upper part with a feed input section forming through its interior, a receiving section forming through its interior, a feeding section that discharges the feed received in the receiving section, a spraying section, and a control module that controls the movement of the feeding section. The spraying section directs the feed discharged from the feeding section to the outside in a positive direction. However, existing equipment still has room for improvement in terms of feeding uniformity and feed processing. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic micro-particle feed feeding device to improve the survival rate of marine fish fry. It can achieve uniform feed dispersion, effectively prevent clumping and deterioration, and adjust the feeding height according to water level changes.

[0004] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: an automatic micro-particle feed feeding device for improving the survival rate of marine fish fry, comprising a feeding box, a drive motor at the upper end of the feeding box, a stirring assembly connected to the drive motor inside the feeding box, the stirring assembly including a rotating shaft connected to the output shaft of the drive motor, connecting sleeves sequentially spaced on the rotating shaft, at least two stirring blades parallel to its axis on the outer side of the rotating shaft, the connecting sleeves being connected to the stirring blades via connecting strips on the outer side of the bottom of the rotating shaft, and a spiral blade surrounding the outer side of the bottom of the rotating shaft. The drive motor of the present invention drives the rotating shaft to rotate, causing the stirring blades to stir the micro-particle feed in the feeding box, effectively breaking up clumps and preventing feed from clogging the feeding channel or exceeding the feeding capacity of the fish fry due to clumps, while also preventing mold growth inside the clumps, which would affect feed quality; the spiral blades at the bottom of the rotating shaft rotate synchronously with the rotating shaft, guiding the stirred feed to the bottom of the feeding box, reducing the risk of feed accumulation and clogging, and ensuring continuous and stable feeding.

[0005] According to one embodiment of the present invention, through holes are sequentially formed on the stirring blades, and a spring is provided outside the rotating shaft, the spring being able to pass through the through holes on the stirring blades. When the drive motor drives the rotating shaft to rotate, the stirring blades rotate synchronously, and the spring moves along with them through its through holes. In addition to breaking up clumps, the elastic deformation of the spring can scrape the surface of the stirring blades in real time, reducing feed residue and preventing residual feed from accumulating and becoming moldy, thus contaminating the feed in the feeding box. At the same time, the deformation of the spring can extend it to the area near the inner wall of the feeding box that is difficult for the stirring blades to cover, expanding the stirring range and improving the overall uniformity of feed mixing. Furthermore, the reduction in feed adhesion can reduce the operating resistance of the stirring components, reduce the load on the drive motor, and ensure stable operation of the device.

[0006] According to one embodiment of the present invention, a drive motor is mounted on a cover plate, and an opening is provided at the top of the feeding box. A sealing ring is provided at the bottom of the cover plate, which contacts the inner wall of the feeding box. A baffle is provided at the upper port of the feeding box, which is coaxially connected to the output end of the drive motor. The baffle is located inside the sealing ring. The cover plate closes the upper opening of the feeding box, and its bottom sealing ring is in close contact with the inner wall of the feeding box, which can effectively isolate the water vapor and salt spray in the breeding environment from entering the box, preventing the micro-particle feed from absorbing moisture and deteriorating. At the same time, it reduces the direct contact between the feed and the air to delay oxidation. Furthermore, the baffle at the upper port of the feeding box rotates coaxially with the output end of the drive motor, which can not only prevent the feed stirred up by the stirring from directly impacting the sealing ring and prevent the feed from getting stuck in the sealing gap and damaging the sealing effect, but also form a preliminary guide for the falling feed through the guide plate.

[0007] According to one embodiment of the present invention, a guide plate is arranged around the side of the baffle relative to the bottom of the feeding box, and guide vanes are arranged at intervals on the side of the guide plate. The guide plate is detachably connected to the surface of the baffle by fasteners. The baffle rotates coaxially with the output end of the drive motor, and the guide plate rotates synchronously. The guide vanes below the guide plate can guide the feed that comes into contact with the guide plate and falls during the processing of the mixing component, avoiding concentrated falling of feed and helping the feed to be evenly dispersed and discharged above the bottom opening of the feeding box, thus avoiding local accumulation of feed.

[0008] According to one embodiment of the present invention, the feeding box has an opening at the bottom and is equipped with an electrically controlled valve, and the spiral blades of the rotating shaft are positioned near the bottom opening of the feeding box. The rotating shaft drives the spiral blades near the bottom opening of the feeding box to rotate, which continuously pushes the feed processed by the mixing component in the box towards the bottom opening, effectively preventing feed from accumulating at the opening and causing blockage. Furthermore, the electrically controlled valve at the bottom opening of the feeding box is used to regulate the feeding rate and the amount of feed given at one time, adjusting according to the feeding needs of marine fish fry at different growth stages, reducing eutrophication caused by excessive feed or competition for feeding among fish fry caused by insufficient feed.

[0009] According to one embodiment of the present invention, a buoyancy component capable of floating on the water surface is provided below the feeding box, and the buoyancy component is connected to the feeding box via a connecting rod. The buoyancy component can automatically adjust the height of the feeding box according to changes in the water level of the aquaculture water, eliminating the need to fix the device to a shore support or underwater base, thus solving the problem that traditional devices cannot adapt to water level fluctuations. While the connecting rod provides stable support for the feeding box, the floating structure of the buoyancy component ensures that the bottom opening of the feeding box is always at a suitable water depth. Combined with the electronically controlled valve and spiral blade scheme, this ensures that the feed is dispersed to the feeding area of ​​the fish fry after being discharged, avoiding displacement of the feeding position due to water level changes. In addition, the buoyancy component allows the entire device to be easily moved, adapting to different aquaculture scenarios such as ponds and net cages.

[0010] According to one embodiment of the present invention, a buoyancy assembly includes a counterweight shaft on which coaxial support circular plates are spaced apart. Clamping blocks are arranged around the sides of the support circular plates, and insertion plates are clamped onto the clamping blocks. First floats are detachably connected to the insertion plates at intervals. In the buoyancy assembly, the insertion plates are clamped and fixed by the clamping blocks on the sides of the support circular plates. The detachable first floats spaced apart provide buoyancy to the device, and together with the connecting rod, drive the feeding box to float on the water surface, automatically adjusting the feeding height according to changes in water level. The counterweight shaft and the spaced coaxial support circular plates form a stable frame used to balance the center of gravity of the device, resist water flow impact, and prevent the feeding box from tilting or shifting.

[0011] Furthermore, snap-fit ​​blocks are arranged around the sides of the supporting circular plate, so that the plug-in plate and the first float are evenly distributed in a ring. With the spaced-out first floats, buoyancy can be evenly applied along the circumference of the device, avoiding the device's center of gravity shift and tilting due to concentrated buoyancy, and further ensuring the accuracy of the feeding position of the feeding box. The side plates at both ends of the counterweight shaft and the spaced-out supporting circular plate form a semi-enclosed frame, which can shield the internal counterweight shaft, connecting screws and other components, reducing the direct corrosion of the load-bearing components by seawater salt spray; at the same time, the surrounding plug-in plate and the first float can disperse the impact force of seawater, reduce the wear of individual components, and extend the overall service life of the buoyancy assembly.

[0012] According to one embodiment of the present invention, the snap-fit ​​blocks on each support circular plate are positioned correspondingly, and the snap-fit ​​blocks have slots for insertion into the plug-in plate. Adhesive or filler strips can be filled at the connection between the plug-in plate and the snap-fit ​​block to reduce or prevent loosening. The corresponding positions of the snap-fit ​​blocks on each support circular plate ensure that the plug-in plate can be inserted vertically and aligned into the snap-fit ​​block slots of multiple support circular plates, preventing the plug-in plate from being installed at an angle, making the force on the plug-in plate and the first float more balanced, ensuring that the buoyancy is evenly distributed along the circumference of the device, and preventing the center of gravity of the device from shifting. The slots on the snap-fit ​​blocks provide installation positioning for the plug-in plate, improving assembly efficiency.

[0013] According to one embodiment of the present invention, the counterweight shaft is provided with side plates at both ends. The side plates at both ends of the counterweight shaft can axially limit the support circular plates arranged on them at intervals, effectively preventing the support circular plates from sliding along the axial direction of the counterweight shaft and causing positional displacement, thereby ensuring that the snap-fit ​​blocks on each support circular plate always remain corresponding. At the same time, the side plates can prevent debris, uneaten bait, etc. in the seawater from entering the gap between the counterweight shaft and the support circular plates.

[0014] According to one embodiment of the present invention, an opening and closing door is provided on one side of the feeding box. The opening and closing door on one side of the feeding box can realize the feeding without removing the cover plate, thus avoiding the damage to the sealing effect of the sealing ring by frequently opening the cover plate.

[0015] Compared with existing technologies, the beneficial effects of this invention are as follows: The combination of stirring blades and springs in the stirring assembly of this invention can not only efficiently break up clumps of feed, but also reduce feed residue on the blade surface, expanding the stirring coverage area. Simultaneously, the sealing ring at the bottom of the cover plate and the inner baffle form double protection, isolating external moisture and salt spray, preventing feed from absorbing moisture and deteriorating or oxidizing, and ensuring the long-term nutritional and health quality of the feed. Furthermore, the spiral blades at the bottom of the feeding box can push feed to prevent clogging, and the electronically controlled valve can precisely adjust the feeding amount and rate according to the growth stage of the fish fry, reducing feed waste and the risk of eutrophication. Moreover, the buoyancy assembly of this invention provides stable buoyancy through floats, and the support frame reinforced with a counterweight shaft and a spiral screw can automatically adjust the height of the device according to water level changes, resist the impact of wind, waves, and water flow, prevent tilting and displacement, and eliminate the need for a fixed base, making it easy to move and adapt to various aquaculture scenarios such as ponds and net cages. Attached Figure Description

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the automatic micro-particle feed feeding device for improving the survival rate of marine fish fry according to the present invention. Figure 2 This is a schematic diagram of the feeding box scheme of the present invention; Figure 3 This is a schematic diagram of the connection scheme between the stirring assembly and the drive motor of the present invention; Figure 4 This is a schematic diagram of the stirring assembly of the present invention; Figure 5 This is a schematic diagram of the guide plate scheme of the present invention; Figure 6 This is a schematic diagram of the buoyancy component scheme of the present invention; Figure 7 For the appendix Figure 6 A magnified view of region A in the image; Figure 8 This is a schematic diagram of the connection scheme between the support circular plate and the screw of the present invention.

[0018] Explanation of reference numerals in the attached figures: 10. Feeding box; 11. Connecting rod; 12. Opening and closing door; 13. Electric control valve; 20. Drive motor; 21. Cover plate; 22. Sealing ring; 23. Baffle; 24. Guide plate; 241. Guide vane; 30. Buoyancy assembly; 31. Counterweight shaft; 32. Insert plate; 33. Screw; 34. First float; 35. Side plate; 36. Supporting circular plate; 37. Snap-fit ​​block; 40. Mixing assembly; 41. Rotating shaft; 42. Mixing blade; 43. Spring; 44. Spiral blade; 45. Connecting sleeve; 46. Connecting strip. Detailed Implementation

[0019] 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.

[0020] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0021] As shown in the attached figure Figure 1 - Appendix Figure 8 As shown, an automatic micro-particle feed feeding device for improving the survival rate of marine fish fry includes a feeding box 10. A drive motor 20 is provided at the upper end of the feeding box 10. A stirring assembly 40 connected to the drive motor 20 is installed inside the feeding box 10. The stirring assembly 40 includes a rotating shaft 41 connected to the output shaft of the drive motor 20. Connecting sleeves 45 are sequentially and spaced on the rotating shaft 41. At least two stirring blades 42 parallel to their own axis are provided on the outer side of the rotating shaft 41. The outer side of the connecting sleeves 45 is connected to the stirring blades 42 by means of connecting strips 46. A spiral blade 44 is also arranged around the outer side of the bottom of the rotating shaft 41. The drive motor 20 of this invention drives the rotating shaft 41 to rotate, so that the stirring blade 42 stirs the micro-particle feed in the feeding box 10, effectively breaking up clumps and preventing the feed from blocking the feeding channel or exceeding the feeding capacity of the fish fry due to clumps. At the same time, it prevents the growth of mold inside the clumps from affecting the feed quality. The spiral blade 44 at the bottom of the rotating shaft 41 rotates synchronously with the rotating shaft, which can guide and transport the stirred feed to the bottom of the feeding box 10, reducing the risk of feed accumulation and blockage, and ensuring a continuous and stable feeding process.

[0022] Above the cover plate 21 of the drive motor 20, there is a corresponding controller, battery, and waterproof and heat-insulating cover. The controller is connected to the drive motor 20 and the bottom electric control valve 13, and controls its operation to achieve automatic feeding. The specific feeding time interval and feeding amount are set according to the breeding species, scenario, etc.

[0023] The stirring blade 42 has through holes arranged in sequence, and a spring 43 is provided on the outside of the rotating shaft 41. The spring 43 can pass through the through holes on the stirring blade 42. When the drive motor 20 drives the rotating shaft 41 to rotate, the stirring blade 42 rotates synchronously, and the spring 43 moves with it through its through holes. In addition to breaking up clumps, the elastic deformation of the spring 43 can scrape the surface of the stirring blade 42 in real time, reducing feed residue and preventing residual feed from accumulating and becoming moldy, thus contaminating the feed in the feeding box 10. At the same time, the deformation of the spring 43 can extend it to the area near the inner wall of the feeding box 10 that the stirring blade 42 cannot cover, expanding the mixing range and improving the overall uniformity of feed mixing. Furthermore, the reduction of feed adhesion can reduce the operating resistance of the stirring assembly 40, reduce the load on the drive motor 20, and ensure the stable operation of the device.

[0024] The upper end of the feeding box 10 is open, and the cover plate 21 is adapted to the opening. The drive motor 20 is installed on the cover plate 21. The bottom of the cover plate 21 is provided with a sealing ring 22, which can contact the inner wall of the feeding box 10. A baffle 23 is installed at the upper port of the feeding box 10. The baffle 23 is coaxially connected to the output end of the drive motor 20, and the baffle 23 is located inside the sealing ring 22. The cover plate 21 covers the upper opening of the feeding box 10, and its bottom sealing ring 22 is in close contact with the inner wall of the feeding box 10. This can effectively isolate the water vapor and salt spray in the breeding environment from entering the box, prevent the micro-particle feed from absorbing moisture and deteriorating, and reduce the direct contact between the feed and the air to delay oxidation. Furthermore, the baffle 23 at the upper end of the feeding box 10 rotates coaxially with the output end of the drive motor 20. This can prevent the feed stirred up by the stirring from directly impacting the sealing ring 22, preventing the feed from getting stuck in the sealing gap and damaging the sealing effect. It can also form a preliminary guide for the falling feed through the guide plate 24.

[0025] A guide plate 24 is arranged around the side of the baffle 23 relative to the bottom of the feeding box 10, and guide vanes 241 are arranged at intervals on the side of the guide plate 24. The guide plate 24 is detachably connected to the surface of the baffle 23 by fasteners. The baffle 23 rotates coaxially with the output end of the drive motor 20, and the guide plate 24 rotates synchronously. The guide vanes 241 below the guide plate 24 can guide the feed that comes into contact with the guide plate 24 and falls during the processing of the mixing component 40, avoiding the feed from falling in a concentrated manner, and helping the feed to be evenly dispersed and discharged above the bottom opening of the feeding box 10, avoiding local accumulation of feed.

[0026] The feeding box 10 has an opening at the bottom and is equipped with an electrically controlled valve 13. The spiral blade 44 of the rotating shaft 41 is positioned near the bottom opening of the feeding box 10. The rotating shaft 41 drives the spiral blade 44 near the bottom opening of the feeding box 10 to rotate, which continuously pushes the feed processed by the mixing component 40 towards the bottom opening, effectively preventing feed from accumulating at the opening and causing blockage. Furthermore, the electrically controlled valve 13 at the bottom opening of the feeding box 10 is used to regulate the feeding rate and the amount of feed given at one time, adjusting according to the feeding needs of marine fish fry at different growth stages, reducing eutrophication caused by excessive feed or competition for feed among fish fry caused by insufficient feed.

[0027] A buoyancy component 30, capable of floating on the water surface, is installed below the feeding box 10. The buoyancy component 30 is connected to the feeding box 10 via a connecting rod 11. The buoyancy component 30 enables the feeding box 10 to automatically adjust its height according to changes in the water level, eliminating the need to fix the device to a shore support or underwater base, thus solving the problem of traditional devices being unable to adapt to water level fluctuations. While the connecting rod 11 provides stable support for the feeding box 10, the floating structure of the buoyancy component 30 ensures that the bottom opening of the feeding box 10 is always at a suitable water depth. Combined with the electronically controlled valve 13 and the spiral blade 44, this ensures that the feed, after being discharged, can spread to the feeding area of ​​the fish fry, preventing the feeding position from shifting due to water level changes. Furthermore, the buoyancy component 30 allows for easy movement of the entire device, adapting to different aquaculture scenarios such as ponds and net cages.

[0028] The buoyancy assembly 30 includes a counterweight shaft 31 with coaxial support circular plates 36 spaced along it. Clamping blocks 37 are arranged around the sides of the support circular plates 36, and insertion plates 32 are clamped onto the clamping blocks 37. First floats 34 are detachably connected to the insertion plates 32 at intervals. In the buoyancy assembly 30, the insertion plates 32 are clamped and fixed by the clamping blocks 37 on the sides of the support circular plates 36. The detachable first floats 34 spaced along the sides provide buoyancy to the device, working with the connecting rod 11 to make the feeding box 10 float on the water surface, automatically adjusting the feeding height according to water level changes. The counterweight shaft 31 and the spaced coaxial support circular plates 36 form a stable frame to balance the center of gravity of the device, resist water flow impact, and prevent the feeding box 10 from tilting or shifting. The supporting circular plate 36 is surrounded by snap-fit ​​blocks 37, so that the plug-in plate 32 and the first float 34 are evenly distributed in a ring. With the spaced-out first float 34, the buoyancy can be evenly applied along the circumference of the device, avoiding the device's center of gravity shift and tilting due to concentrated buoyancy, and further ensuring the accuracy of the feeding position of the feeding box 10. The side plates 35 at both ends of the counterweight shaft 31 and the spaced-out supporting circular plate 36 form a semi-enclosed frame, which can shield the internal counterweight shaft, connecting screws and other components, reducing the direct corrosion of the load-bearing components by seawater salt spray; at the same time, the surrounding plug-in plate 32 and the first float 34 can disperse the impact force of seawater, reduce the wear of individual components, and extend the overall service life of the buoyancy assembly.

[0029] The snap-fit ​​structure of the snap-fit ​​block 37 and the detachable design of the first float 34 facilitate quick replacement of damaged floats or adjustment of buoyancy without the need for complete disassembly of the components, thus reducing maintenance costs.

[0030] Each supporting circular plate 36 has a corresponding snap-fit ​​block 37, and the snap-fit ​​block 37 has a slot for insertion into the plug-in plate 32. Adhesive or filler strips can be used to fill the connection between the plug-in plate 32 and the snap-fit ​​block 37 to reduce or prevent them from loosening. The corresponding position of the snap-fit ​​blocks 37 on each supporting circular plate 36 ensures that the plug-in plate 32 can be inserted vertically and aligned into the slots of the snap-fit ​​blocks 37 of the multiple supporting circular plates 36, preventing the plug-in plate 32 from being installed at an angle, making the force on the plug-in plate 32 and the first float 34 more balanced, ensuring that the buoyancy is evenly distributed along the circumference of the device, and preventing the center of gravity of the device from shifting. The slots on the snap-fit ​​blocks 37 provide installation positioning for the plug-in plate 32, improving assembly efficiency.

[0031] The counterweight shaft 31 is provided with side plates 35 at both ends. The side plates 35 at both ends of the counterweight shaft 31 can axially limit the support circular plates 36 arranged on them at intervals, effectively preventing the support circular plates 36 from sliding along the axial direction of the counterweight shaft 31 and causing positional displacement. This ensures that the snap-fit ​​blocks 37 on each support circular plate 36 always remain in correspondence. At the same time, the side plates 35 can prevent debris, uneaten bait, etc. in the seawater from entering the gap between the counterweight shaft 31 and the support circular plates 36.

[0032] A door 12 is provided on one side of the feeding box 10. The door 12 on one side of the feeding box 10 allows for feeding without removing the cover plate 21, thus avoiding frequent opening of the cover plate and damaging the sealing effect of the sealing ring 22. Example

[0033] This embodiment includes the content of Embodiment 1, and is a further improvement based on Embodiment 1.

[0034] See appendix Figure 8 As shown, adjacent support circular plates 36 are connected by screws 33. There are at least three screws 33 used to connect the support circular plates 36, and the screws 33 are arranged in a circumferential manner.

[0035] The supporting circular plate 36 of the adjacent side plate 35 is connected to the side plate 35 by screws 33. There are at least 3 screws 33, and the screws 33 are arranged in a circumferential manner.

[0036] Adjacent supporting circular plates 36 and between supporting circular plates 36 and side plates 35 are connected by at least three circumferentially arranged screws 33. This circumferential arrangement ensures that the force is evenly distributed along the circumference of the supporting circular plates 36, avoiding localized force concentration that could lead to structural deformation. This enhances the rigidity and impact resistance of the buoyancy assembly 30 frame, effectively resisting the impact of wind, waves, and water flow on the device. Simultaneously, the at least three screws 33 fix the spacing and axial position of the supporting circular plates 36, ensuring that the snap-fit ​​blocks 37 on each supporting circular plate 36 remain aligned, ensuring that the plug-in plate 32 is inserted into the slot, and cooperating with the side plate 35 to restrict the sliding of the supporting circular plates 36, further stabilizing the overall structure of the buoyancy assembly 30. Example

[0037] This embodiment includes the content of Embodiment 1, and is a further improvement based on Embodiment 1.

[0038] See appendix Figure 1 As shown, one end of the connecting rod 11 is connected to the wall of the feeding box 10, and the other end of the connecting rod 11 is connected to the buoyancy component 30. The bottom of the connecting rod 11 has horizontal support rods that are connected to each other, thus forming a polygonal structure to enhance the supporting effect of the connecting rod 11.

[0039] The bottom of the horizontal strut has a mounting plate, which is detachably connected to the side plate 35 by fasteners.

[0040] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any way. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as the technology or embodiments that are substantially the same as the present invention.

[0041] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. An automatic feeding device for micro-particle feed to improve the survival rate of marine fish fry, comprising a feeding box (10), characterized in that, The upper end of the feeding box (10) has a drive motor (20). The feeding box (10) has a stirring assembly (40) connected to the drive motor (20). The stirring assembly (40) includes a rotating shaft (41) connected to the output shaft of the drive motor (20). Connecting sleeves (45) are sequentially spaced on the rotating shaft (41). At least two stirring blades (42) parallel to its axis are provided on the outside of the rotating shaft (41). The outside of the connecting sleeve (45) is connected to the stirring blades (42) through a connecting strip (46). Spiral blades (44) are arranged around the bottom outside of the rotating shaft (41).

2. The automatic micro-particle feed dispensing device for improving the survival rate of marine fish fry according to claim 1, characterized in that, The stirring blade (42) has through holes in sequence, and the rotating shaft (41) is provided with a spring (43) that can pass through the through holes on the stirring blade (42).

3. The automatic micro-particle feed dispensing device for improving the survival rate of marine fish fry according to claim 1, characterized in that, The drive motor (20) is mounted on the cover plate (21). The upper end of the feeding box (10) is open. The bottom of the cover plate (21) is provided with a sealing ring (22) that contacts the inner wall of the feeding box (10). The upper port of the feeding box (10) is provided with a baffle (23) that is coaxially connected to the output end of the drive motor (20). The baffle (23) is located inside the sealing ring (22).

4. The automatic micro-particle feed dispensing device for improving the survival rate of marine fish fry according to claim 1, characterized in that, The baffle (23) is surrounded by a guide plate (24) on the side of the bottom of the feed box (10), and the guide plate (24) is provided with guide vanes (241) at intervals on the side of the guide plate (24).

5. The automatic micro-particle feed dispensing device for improving the survival rate of marine fish fry according to claim 1, characterized in that, The feeding box (10) has an opening at the bottom and is equipped with an electric control valve (13). The spiral blade (44) of the rotating shaft (41) is located near the opening at the bottom of the feeding box (10).

6. The automatic micro-particle feed dispensing device for improving the survival rate of marine fish fry according to claim 1, characterized in that, Below the feeding box (10) is a buoyancy component (30) that can float on the water surface. The buoyancy component (30) is connected to the feeding box (10) via a connecting rod (11).

7. The automatic micro-particle feed dispensing device for improving the survival rate of marine fish fry according to claim 6, characterized in that, The buoyancy component (30) includes a counterweight shaft (31). Supporting circular plates (36) are arranged on the counterweight shaft (31) at intervals and are coaxial with it. The side of the supporting circular plate (36) is surrounded by snap-fit ​​blocks (37). A plug-in plate (32) is snapped onto the snap-fit ​​block (37). A first float (34) is detachably connected to the plug-in plate (32) at intervals.

8. The automatic micro-particle feed dispensing device for improving the survival rate of marine fish fry according to claim 7, characterized in that, The snap-fit ​​blocks (37) on each of the support circular plates (36) are positioned correspondingly, and the snap-fit ​​blocks (37) have slots for insertion into the plug-in plates (32).

9. The automatic micro-particle feed dispensing device for improving the survival rate of marine fish fry according to claim 7, characterized in that, The counterweight shaft (31) has side plates (35) at both ends.

10. The automatic micro-particle feed dispensing device for improving the survival rate of marine fish fry according to claim 1, characterized in that, The feeding box (10) has an opening and closing door (12) on one side.

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