A floating feeding device for indoor seedling raising

Abstract

This invention discloses a floating feeding device for indoor fry rearing, relating to the field of fish fry feeding. It solves the problem of uneven feeding caused by existing fish fry feeding devices. The device includes: a mounting bracket and a floating air cushion mounted at the bottom of the mounting bracket; an electric push rod frame fixedly mounted on the top of the mounting bracket; a positioning frame fixedly mounted at the bottom of the moving end of the electric push rod frame; a feeding cylinder at the bottom of the positioning frame; and two feeding hoppers fixedly mounted on the top of the feeding cylinder. It also includes a feeding mechanism for evenly dispensing fish food from the feeding cylinder, which is installed between the feeding cylinder and the positioning frame. This invention, through the feeding mechanism, enables the floating air cushion to float on the water surface of the rearing room and aligns the feeding cylinder with the water surface, improving the convenience of placing the feeding cylinder. When the electric push rod frame is running, the feeding cylinder can evenly dispense fish food into the water, thus achieving a uniform feeding effect.

Description

Technical Field

[0001] This invention relates to the field of fish fry feeding, specifically a floating feeding device for indoor fry rearing. Background Technology

[0002] Fish fry cultivation refers to the artificial incubation and cultivation of fish larvae to provide seedlings for aquaculture. In order to improve the survival rate of fish fry, most fish fry are placed in aquaculture rooms for cultivation and fed through feeding tubes.

[0003] To facilitate feeding the fish fry in the rearing room, a tank for storing fish food is installed above the water surface. The fish food is discharged into the water through the discharge port at the bottom of the tank. The existing feeding device involves suspending a movable support plate in the rearing room, allowing the feeding tube to move along the support plate to feed the fish fry. However, after the feeding tube moves once, it is difficult to move back, and the support plate needs to be moved to the next position before the next area of ​​fish fry can be fed. Due to the high density of fish fry in the rearing room, fish food is easily missed during the movement of the support plate, making it difficult to feed the fish fry evenly in the rearing room. Summary of the Invention

[0004] The purpose of this invention is to provide a floating feeding device for indoor seedling cultivation, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A floating feeding device for indoor seedling cultivation includes: a mounting bracket and a floating air cushion fixedly installed at the bottom of the mounting bracket. The floating air cushion has a frame-shaped structure. An electric push rod frame is fixedly installed at the top of the mounting bracket. A positioning frame is fixedly installed at the bottom of the movable end of the electric push rod frame. A feeding cylinder is provided at the bottom of the positioning frame. Two symmetrically distributed feeding hoppers are fixedly installed at the top of the feeding cylinder.

[0007] Also includes:

[0008] A feeding mechanism is used to uniformly feed material into the feeding cylinder, and the feeding mechanism is installed between the feeding cylinder and the positioning frame;

[0009] An oxygenation mechanism is used to uniformly inject oxygen into the water, and the oxygenation mechanism is installed on the inner side of the positioning frame;

[0010] A stirring mechanism is used to uniformly stir the fish feed in the feeding cylinder, and the stirring mechanism is installed inside the feeding cylinder.

[0011] Preferably, the feeding mechanism includes a rotating cylinder rotatably mounted on the top of the feeding cylinder, the top end of the rotating cylinder extending to the inner side of the feeding cylinder, a fixing ring fixedly mounted between the top of the feeding cylinder and the bottom of the positioning frame, a transmission gear fixedly mounted on the outer side of the rotating cylinder, a rack plate cooperating with the transmission gear fixedly mounted on the inner side of the mounting bracket, a through hole for the rack plate to limit sliding on the outer side of the fixing ring, a discharge cylinder fixedly mounted on the bottom of the feeding cylinder, a sealing plate fixedly mounted on the inner side of the discharge cylinder, a plurality of centrally symmetrically distributed discharge holes on the surface of the sealing plate, the discharge holes having an elongated structure, the end of the rotating cylinder away from the transmission gear being rotatably mounted on the inner side of the sealing plate, an installation tube fixedly mounted on the outer side of the rotating cylinder, a plurality of centrally symmetrically distributed discharge push plates fixedly mounted on the outer side of the installation tube, the thickness of the discharge push plates being greater than the width of the discharge holes, and the side of the discharge push plates away from the installation tube contacting the inner side of the discharge cylinder.

[0012] Preferably, the oxygen injection mechanism includes a turntable fixedly installed at the top of the rotating drum, a pusher plate at the top of the turntable, a plurality of centrally symmetrically distributed push balls fixedly installed on the inner side of the turntable, an annular groove for the push balls to slide and limit their movement at the top of the feeding cylinder, a spherical groove for the push balls to insert and limit their movement at the bottom of the pusher plate, a telescopic airbag fixedly installed on the top inner wall of the positioning frame, the bottom of the telescopic airbag being fixedly connected to the top of the pusher plate, a plurality of centrally symmetrically distributed first sleeve plates fixedly installed on the outer side of the pusher plate, the first sleeve plates being slidably installed on the outer side of the positioning frame, an exhaust pipe extending to the inner side of the rotating drum fixedly installed at the bottom of the telescopic airbag, and an aeration stone fixedly installed at the end of the exhaust pipe away from the telescopic airbag.

[0013] Preferably, the mixing mechanism includes multiple positioning cylinders fixedly installed at equal intervals on the outside of the rotating drum. Multiple stirring rods symmetrically distributed on the outside of the positioning cylinders are rotatably installed. A bevel gear is fixedly installed at the end of the stirring rod away from the positioning cylinder. An annular groove for the bevel gear to move is opened on the inner side of the feeding cylinder. An annular rack that cooperates with the bevel gear is fixedly installed on the inner side of the annular groove. A sealing ring is provided on the outer side of the annular groove. The end of the stirring rod away from the positioning cylinder is rotatably installed on the outer side of the sealing ring. The height of the sealing ring is greater than the height of the annular groove. A spiral strip is fixedly installed on the outer side of the stirring rod.

[0014] Preferably, the top of the mounting bracket is fixedly equipped with a plurality of hooks arranged in a rectangular array, and the outside of the mounting bracket is provided with a pull rope that cooperates with the hooks.

[0015] Preferably, two symmetrically distributed second sleeve plates are fixedly installed on the outer side of the feeding cylinder, and a guide groove is provided on the inner side of the mounting bracket for the second sleeve plates to slide in a limited manner.

[0016] Preferably, a support frame is fixedly installed at one end of the rotating drum near the mounting tube, and the support frame is fixedly installed on the inner side of the feeding drum.

[0017] Preferably, a spring is fixedly installed between the top of the first sleeve plate and the inner side of the positioning frame.

[0018] Preferably, a limiting ring is fixedly installed at the end of the stirring rod away from the bevel gear, and the limiting ring is rotatably installed on the inner side of the positioning cylinder.

[0019] Preferably, a support ring is provided below the sealing ring, and the top of the support ring contacts the bottom of the sealing ring.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This invention, through its feeding mechanism, enables the floating air cushion to float on the water surface of the breeding room and aligns the feeding cylinder with the water surface, improving the convenience of placing the feeding cylinder. When the electric push rod frame is running, it enables the feeding cylinder to evenly put fish food into the water, solving the problem of uneven feeding that is common in existing feeding devices, thereby achieving the effect of uniform feeding.

[0022] 2. The present invention, through the oxygenation mechanism, can realize the reciprocating movement of the discharge push plate by the movement of the push ball on the turntable during the movement of the feeding cylinder. The discharge push plate can repeatedly compress and extend the air bladder, and together with the aeration stone on the exhaust pipe, it can evenly inject oxygen into the water to achieve the effect of automatic oxygenation. Furthermore, the floating of the air bubbles can facilitate the even diffusion of fish food in the water, thereby achieving the effect of automatic oxygenation.

[0023] 3. The present invention uses a stirring mechanism to enable the rotating drum to drive multiple stirring rods to rotate synchronously, and to make the propellers on the outside of the stirring rods rotate, which facilitates the stirring and turning of the fish food in the feeding drum, prevents the fish food from clumping, and facilitates the normal discharge of the fish food, thereby achieving the effects of stirring to prevent clumping and uniform feeding. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the rotating cylinder and rack plate structure in this invention;

[0026] Figure 3 This is a schematic diagram of the feeding cylinder and discharging cylinder structure in this invention;

[0027] Figure 4 This is a schematic diagram of the material discharge pusher plate and sealing plate structure in this invention;

[0028] Figure 5 This is a schematic diagram of the telescopic airbag and turntable structure in this invention;

[0029] Figure 6 This is a schematic diagram of the ball-pushing and plate-pushing structure in this invention;

[0030] Figure 7 for Figure 3 Enlarged structural diagram of area A in the middle;

[0031] Figure 8 This is a schematic diagram of the stirring rod and spiral structure in this invention.

[0032] In the diagram: 1. Mounting bracket; 2. Floating air cushion; 3. Electric push rod frame; 4. Positioning frame; 5. Feeding cylinder; 6. Injection hopper; 7. Rotary drum; 8. Fixing ring; 9. Transmission gear; 10. Rack plate; 11. Discharge cylinder; 12. Sealing plate; 13. Mounting pipe; 14. Discharge push plate; 15. Turntable; 16. Push plate; 17. Push ball; 18. Telescopic airbag; 19. First set plate; 20. Exhaust pipe; 21. Aeration stone; 22. Positioning cylinder; 23. Stirring rod; 24. Bevel gear; 25. Ring rack; 26. Sealing ring; 27. Spiral strip; 28. Hook; 29. ​​Pull rope; 30. Second set plate; 31. Support frame; 32. Spring; 33. Limiting ring; 34. Support ring. Detailed Implementation

[0033] 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.

[0034] Example 1: Please refer to Figures 1-8The diagram shows a floating feeding device for indoor seedling rearing, comprising a mounting bracket 1 and a floating air cushion 2 fixedly installed at the bottom of the mounting bracket 1, allowing the mounting bracket 1 to float on the water surface of the rearing room. The floating air cushion 2 has a frame-shaped structure. An electric push rod frame 3 is fixedly installed on the top of the mounting bracket 1, and a positioning frame 4 is fixedly installed at the bottom of the moving end of the electric push rod frame 3. When the electric push rod frame 3 is running, it can drive the positioning frame 4 to reciprocate. A feeding cylinder 5 is provided at the bottom of the positioning frame 4 for storing fish food, so that when the positioning frame 4 moves, it can drive the feeding cylinder 5 to move synchronously, distributing the fish food evenly into the water. Two symmetrically distributed second sets of plates 30 are fixedly installed on the outer side of the feeding cylinder 5. A guide groove is provided on the inner side of the mounting bracket 1 for limiting the sliding of the second sets of plates 30. A guide rod is provided inside the guide groove, which slides through the second sleeve plate 30. When the feeding cylinder 5 moves, it can drive the second sleeve plate 30 to move along the inner side of the guide groove and the outer side of the guide rod, improving the stability of the feeding cylinder 5. Two symmetrically distributed feeding hoppers 6 are fixedly installed on the top of the feeding cylinder 5. Fish food is injected into the feeding cylinder 5 through the two feeding hoppers 6. Multiple hooks 28 arranged in a rectangular array are fixedly installed on the top of the mounting bracket 1. Pull ropes 29 that cooperate with the hooks 28 are provided on the outer side of the mounting bracket 1. Pulling the pull ropes 29 can pull the mounting bracket 1 to move along the water surface and cooperate with the reciprocating feeding of the feeding cylinder 5 to achieve comprehensive feeding of the aquaculture pond. It also includes a feeding mechanism for making the feeding cylinder 5 feed evenly. The feeding mechanism is installed between the feeding cylinder 5 and the positioning frame 4.

[0035] The feeding mechanism includes a rotating drum 7 rotatably mounted on the top of the feeding cylinder 5. The top of the rotating drum 7 extends to the inner side of the feeding cylinder 5. A protruding ring is provided on the outer side of the rotating drum 7, and the top of the protruding ring contacts the inner wall of the top of the feeding cylinder 5. A support frame 31 is fixedly mounted on one end of the rotating drum 7 near the mounting tube 13. The support frame 31 is fixedly mounted on the inner side of the feeding cylinder 5 and provides support for the rotating drum 7 through the cooperation of the support frame 31 and the protruding ring. A fixing ring 8 is fixedly installed between the top of the feeding cylinder 5 and the bottom of the positioning frame 4. A transmission gear 9 is fixedly installed on the side, and the transmission gear 9 is inside the fixed ring 8. A rack plate 10 that mates with the transmission gear 9 is fixedly installed on the inner side of the mounting bracket 1, so that when the feeding cylinder 5 moves, it can drive the transmission gear 9 on the rotating cylinder 7 to move along the outer side of the rack plate 10, so that the transmission gear 9 drives the rotating cylinder 7 to rotate. The outer side of the fixed ring 8 has a through hole for the rack plate 10 to limit sliding. A discharge cylinder 11 is fixedly installed at the bottom of the feeding cylinder 5. The outer diameter of the discharge cylinder 11 is smaller than the size of the feeding cylinder 5. A sealing plate 12 is fixedly installed on the inner side of the feed cylinder 11. Multiple feed discharge holes, arranged symmetrically on the surface of the sealing plate 12, are elongated to facilitate the downward discharge of fish food from the feed cylinder 11. The end of the rotating drum 7 furthest from the transmission gear 9 is rotatably mounted on the inner side of the sealing plate 12. An installation tube 13 is fixedly installed on the outer side of the rotating drum 7. Multiple feed discharge push plates 14, arranged symmetrically, are fixedly installed on the outer side of the installation tube 13. When the rotating drum 7 rotates, the feed discharge plates 14 can pass through the installation tube 13. The feed pusher plate 14 is rotated, which pushes the fish food into the feed hole. The fish food can then be discharged into the water in an intermittent manner, preventing the feeding from being too dense and making it easier for the fish fry to eat. This achieves a uniform feeding effect. The thickness of the feed pusher plate 14 is greater than the width of the feed hole. When the feeding cylinder 5 moves to the end of the electric pusher frame 3, the feed pusher plate 14 can be aligned with the feed hole to achieve a seal on the feed hole and facilitate feeding. The side of the feed pusher plate 14 away from the mounting pipe 13 is in contact with the inner side of the feeding cylinder 11.

[0036] Example 2: Please refer to Figure 5 and Figure 6This embodiment further illustrates Example 1. The oxygen injection mechanism shown in the figure includes a turntable 15 fixedly installed at the top of the rotating drum 7. When the rotating drum 7 rotates, it can drive the turntable 15 to rotate synchronously. A push plate 16 is provided on the top of the turntable 15, and the bottom of the push plate 16 contacts the top of the turntable 15. A plurality of push balls 17 are fixedly installed on the inner side of the turntable 15 in a centrally symmetrical distribution. The top of the feeding cylinder 5 is provided with an annular groove for the push balls 17 to slide and limit their movement, thereby improving the stability of the rotation of the turntable 15. The bottom of the push plate 16 is provided with a groove for the push balls 17 to slide and limit their movement. The spherical groove of the limiting insertion allows the push ball 17 to slide out of the spherical groove of the turntable 15 when the turntable 15 rotates, pushing the push plate 16 upward. A telescopic airbag 18 is fixedly installed on the top inner wall of the positioning frame 4. The bottom of the telescopic airbag 18 is fixedly connected to the top of the push plate 16, so that the top of the push plate 16 can compress the telescopic airbag 18 when the push plate 16 moves upward. A plurality of first set plates 19 are fixedly installed on the outer side of the push plate 16 in a centrally symmetrical distribution. The first set plates 19 are slidably installed on the outer side of the positioning frame 4, and the top of the first set plates 19... A spring 32 is fixedly installed between the spring 32 and the inner side of the positioning frame 4. When the push plate 16 moves upward, it can drive the first sleeve plate 19 to squeeze the bottom of the spring 32, causing the spring 32 to contract. When the push ball 17 on the turntable 15 is aligned with the spherical groove again, the rebound force of the spring 32 causes the spherical groove on the push plate 16 to be fitted onto the outside of the push ball 17 again, allowing the telescopic airbag 18 to draw in outside air through the one-way air intake valve. An exhaust pipe 20 extending to the inner side of the rotating cylinder 7 is fixedly installed at the bottom of the telescopic airbag 18. The surfaces of the turntable 15 and the push plate 16 are both A circular hole is provided for the exhaust pipe 20 to pass through. The exhaust pipe 20 is connected to the telescopic air bladder 18 through a one-way valve, so that when the telescopic air bladder 18 contracts, it can discharge air into the exhaust pipe 20. An aeration stone 21 is fixedly installed at the end of the exhaust pipe 20 away from the telescopic air bladder 18. The aeration stone 21 is existing technology. The exhaust pipe 20 injects air into the water through the aeration stone 21, injecting oxygen into the water. The continuous rotation of the turntable 15 realizes automatic oxygenation of the aquaculture pond. The air bubbles are used to make the fish food spread quickly in the water, realizing uniform feeding.

[0037] Example 3: Please refer to Figures 3-8This embodiment further illustrates other embodiments. The mixing mechanism shown in the figure includes multiple positioning cylinders 22 that are equidistantly fixedly installed on the outside of the rotating drum 7. Multiple stirring rods 23 that are centrally symmetrically distributed are rotatably installed on the outside of the positioning cylinders 22, so that when the rotating drum 7 rotates, it can drive the stirring rods 23 to stir the fish food in the feeding cylinder 5. A limiting ring 33 is fixedly installed on the end of the stirring rod 23 away from the bevel gear 24. The limiting ring 33 is rotatably installed on the inside of the positioning cylinder 22 to provide support for the stirring rod 23 and improve the durability of the stirring rod 23. A bevel gear 24 is fixedly installed on the end of the stirring rod 23 away from the positioning cylinder 22. An annular groove for the bevel gear 24 to move is opened on the inside of the feeding cylinder 5. An annular rack 25 that cooperates with the bevel gear 24 is fixedly installed on the inside of the annular groove. When the stirring rod 23 drives the bevel gear 24 to make circular motion in the annular groove, the annular rack 25 enables the bevel gear 24 to drive the stirring rod 23 to rotate. A sealing ring 26 is provided on the outside of the annular groove. The end of the stirring rod 23 away from the positioning cylinder 22 is rotatably installed on the outside of the sealing ring 26. The height of the sealing ring 26 is greater than the height of the annular groove, providing a seal for the annular groove and preventing fish food from entering the annular groove. A support ring 34 is provided below the sealing ring 26. The top of the support ring 34 contacts the bottom of the sealing ring 26, providing support for the bottom of the sealing ring 26 and reducing the burden on the stirring rod 23. A spiral strip 27 is fixedly installed on the outside of the stirring rod 23, so that the stirring rod 23 drives the spiral strip 27 to turn the fish food in the feeding cylinder 5, preventing the fish food from clumping and facilitating the discharge of fish food.

[0038] Working principle: First, the worker injects fish food into the feeding cylinder 5 from the feeding hopper 6. The discharge push plate 14 on the mounting pipe 13 is aligned with the discharge hole on the sealing plate 12 to prevent the fish food from leaking out of the discharge hole. Then, the worker places the mounting bracket 1 on the water surface, so that the floating air cushion 2 floats on the water surface, and starts the electric push rod frame 3. The moving end of the electric push rod frame 3 drives the positioning frame 4 to move. The positioning frame 4 drives the feeding cylinder 5 to move synchronously through the fixing ring 8. The feeding cylinder 5 drives the second set plate 30 to move along the inner side of the mounting bracket 1, so that the discharge cylinder 11 at the bottom of the feeding cylinder 5 moves on the water surface. At the same time, the feeding cylinder 5 drives the rotating cylinder 7 to move synchronously. The transmission gear 9 on the rotating cylinder 7 moves along the rack plate 10, so that the transmission gear 9 drives the rotating cylinder 7 to rotate. The rotating cylinder 7 passes through... The positioning cylinder 22 drives the stirring rod 23 to rotate around the rotating cylinder 7, causing the bevel gear 24 at the end of the stirring rod 23 to move within the annular groove of the feeding cylinder 5. Through the annular rack 25, the bevel gear 24 rotates during this movement, driving the stirring rod 23 to rotate. This causes the stirring rod 23 to drive the spiral strip 27 to agitate the fish food in the feeding cylinder 5. Simultaneously, the rotating cylinder 7 drives the discharge push plate 14 on the outside of the mounting pipe 13 to move along the top of the discharge cylinder 11 and the sealing plate 12. This push plate 14 pushes the fish food entering the discharge cylinder 11 into the discharge hole on the sealing plate 12. As the discharge push plate 14 rotates, it intermittently opens and closes the discharge hole, allowing the fish food to be intermittently added to the water, preventing fish from being caught in the water. The feeding is too concentrated. At the same time, the rotating drum 7 drives the turntable 15 to rotate synchronously, causing the push ball 17 on the turntable 15 to move along the annular groove on the feeding drum 5. The push ball 17 slides out along the spherical groove of the push plate 16 and moves to the bottom of the push plate 16, causing the push ball 17 to push the push plate 16 upward. The first set plate 19 on the outer side of the push plate 16 moves along the outer side of the positioning frame 4 and compresses the spring 32. The push plate 16 then compresses the telescopic air bag 18 upward, causing the air in the telescopic air bag 18 to be discharged into the exhaust pipe 20. The air is discharged from the aeration stone 21 through the exhaust pipe 20 to oxygenate the water. As the turntable 15 rotates, the push ball 17 is aligned with the spherical groove on the push plate 16 again. At this time, the rebound force of the spring 32 causes the first set plate 19 to push the push ball 17 upward. The disc 16 moves downward, and the push disc 16 pulls the telescopic airbag 18 back to its original position, allowing the telescopic airbag 18 to draw in outside air through the one-way air intake valve. Thus, as the turntable 15 rotates, the telescopic airbag 18 repeatedly injects air into the exhaust pipe 20, and the aeration stone 21 can continuously oxygenate the water. In addition, the bubbles generated in this process can diffuse the fish food entering the water, improve the uniformity of fish food input, and facilitate fish fry feeding. Finally, the staff pulls the pull rope 29, which pulls the floating air cushion 2 at the bottom of the mounting bracket 1 along the water surface through the hook 28. With the reciprocating feeding of the feeding cylinder 5, uniform and comprehensive feeding of the breeding room is achieved. The operation is simple and convenient, which is conducive to indoor seedling raising, thereby achieving the effect of comprehensive feeding and improving the convenience of fish fry cultivation.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A floating feeding device for indoor seedling cultivation, characterized in that, include: The mounting bracket and the floating air cushion installed at the bottom of the mounting bracket are mounted on the top of the mounting bracket. An electric push rod frame is fixedly installed on the top of the electric push rod frame. A positioning frame is fixedly installed at the bottom of the moving end of the electric push rod frame. A feeding cylinder is set at the bottom of the positioning frame. Two feeding hoppers are fixedly installed on the top of the feeding cylinder. Also includes: A feeding mechanism is used to uniformly feed materials into the feeding cylinder. The feeding mechanism is installed between the feeding cylinder and the positioning frame. The feeding mechanism includes a rotating cylinder installed on the top of the feeding cylinder. A fixing ring is fixedly installed between the top of the feeding cylinder and the bottom of the positioning frame. A transmission gear is fixedly installed on the outer side of the rotating cylinder. A rack plate is fixedly installed on the inner side of the mounting bracket. A discharge cylinder is fixedly installed at the bottom of the feeding cylinder. A sealing plate is fixedly installed on the inner side of the discharge cylinder. Multiple discharge holes are opened on the surface of the sealing plate. The end of the rotating cylinder away from the transmission gear is rotatably installed on the inner side of the sealing plate. An installation tube is fixedly installed on the outer side of the rotating cylinder. Multiple discharge push plates are installed on the outer side of the installation tube. The oxygenation mechanism is used to uniformly oxygenate the water. The oxygenation mechanism is installed inside the positioning frame. The oxygenation mechanism includes a turntable fixedly installed at the top of the rotating cylinder. A push plate is provided on the top of the turntable. Multiple push balls are fixedly installed on the inner side of the turntable. A spherical groove for limiting and inserting the push balls is opened at the bottom of the push plate. A telescopic airbag is fixedly installed on the top inner wall of the positioning frame. Multiple first-set plates are fixedly installed on the outer side of the push plate. The first-set plates are slidably installed on the outer side of the positioning frame. An exhaust pipe is fixedly installed at the bottom of the telescopic airbag. An aeration stone is fixedly installed at one end of the exhaust pipe. The mixing mechanism is used to evenly mix the fish food in the feeding cylinder. The mixing mechanism is installed inside the feeding cylinder and includes multiple positioning cylinders fixedly installed on the outside of the rotating cylinder. Multiple stirring rods are rotatably installed on the outside of the positioning cylinders. A bevel gear is fixedly installed at one end of the stirring rod. An annular groove for the bevel gear to move is opened on the inside of the feeding cylinder. An annular rack is fixedly installed on the inside of the annular groove. A sealing ring is provided on the outside of the annular groove. One end of the stirring rod is rotatably installed on the outside of the sealing ring. A spiral strip is fixedly installed on the outside of the stirring rod.

2. The floating feeding device for indoor seedling cultivation according to claim 1, characterized in that: The top of the mounting bracket is fixedly equipped with multiple hooks, and the outside of the mounting bracket is provided with pull ropes that cooperate with the hooks.

3. A floating feeding device for indoor seedling cultivation according to claim 1, characterized in that: Two second plates are fixedly installed on the outer side of the feeding cylinder, and a guide groove is provided on the inner side of the mounting bracket for the second plates to slide in a limited position.

4. A floating feeding device for indoor seedling cultivation according to claim 1, characterized in that: A support frame is fixedly installed at one end of the rotating drum, and the support frame is fixedly installed on the inner side of the feeding drum.

5. A floating feeding device for indoor seedling cultivation according to claim 1, characterized in that: A spring is fixedly installed between the top of the first plate and the inner side of the positioning frame.

6. A floating feeding device for indoor seedling cultivation according to claim 1, characterized in that: One end of the stirring rod is fixedly equipped with a limiting ring, which is rotatably installed inside the positioning cylinder.

7. A floating feeding device for indoor seedling cultivation according to claim 1, characterized in that: A support ring is provided below the sealing ring, and the top of the support ring is in contact with the bottom of the sealing ring.

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