A freshwater fish fry breeding tank

Abstract

The present application relates to the technical field of fish breeding, and particularly relates to a freshwater breeding fish fry breeding box, which comprises a box body, a movable buckle cover movably arranged on the upper surface of the box body, a convex plate arranged in the box body through a moving and fixing mechanism, a gas blocking piece arranged on the upper surface of the convex plate through a gas adjusting mechanism, a simulated branch arranged on the inner side of the convex plate through a swinging mechanism, a power cord arranged in the box body through a tight fixing mechanism, a handle arranged on the upper surface of the movable buckle cover through a lifting mechanism, a feeding groove arranged on the upper surface of the movable buckle cover, and a pulling force column arranged in front of the feeding groove through a pulling mechanism, the present application adjusts the position of the simulated leaf through the gas amount in the gas bag, so that the bubbles near the simulated leaf will not be broken due to the hand holding the leaf, the water level is changed, the simulated leaf will automatically adjust the height along with the water, and it is not necessary to re-adjust, the breeding box is not only convenient to carry, but also can meet the daily breeding.

Description

Technical Field

[0001] This invention relates to the field of fish fry breeding technology, and in particular to a freshwater fish fry breeding box. Background Technology

[0002] Betta fish are a popular ornamental fish. They have an oval, laterally compressed body with a broad, arched belly. Adults typically reach 310 cm in length and weigh 16 grams, with males usually larger than females. Males are generally more brightly colored than females, and their colors vary depending on their habitat. Common colors include red, blue, and green. Their tail fins can be forked or rounded. Betta fish prefer shallow, slow-moving waters with dense vegetation. They have a unique habit of building bubble nests and are aggressive fish, especially males, who often fight.

[0003] Betta fish, with their vibrant colors and unique habits, have always been favored by aquarium enthusiasts. In the aquarium market, betta fish are a very popular species with high economic value. They are highly adaptable to water temperature, generally surviving between 20-30℃. After the male builds a bubble nest, it uses its mouth to carry the eggs back into the nest for protection, thus enabling reproduction.

[0004] Artificial leaves can be used to keep betta fish. They provide a safe haven for the fish, giving them a quiet corner to rest or lay eggs. Betta fish like to perch on leaves or similar objects, and artificial leaves satisfy this habit. Artificial leaves are often cleverly designed and realistically look like they add a natural touch to the aquarium. Exquisite artificial leaves can be the finishing touch to an aquarium, enhancing its overall aesthetic appeal. Artificial leaves will not rot or affect water quality, saving keepers the trouble of frequent replacement and maintenance. Choosing artificial leaves provides betta fish with a comfortable, beautiful, and easy-to-care-for living environment.

[0005] Existing artificial leaves adhere to the inner wall of the breeding tank via suction cups. When betta fish are building their nests by blowing bubbles, if the bubbles are not noticed in time, the artificial leaves will block the bubbles on the water surface. Adjusting the position of the artificial leaves at this point will cause the bubbles near the leaves to burst, which is not conducive to breeding. Moreover, the height of the suction cup-type artificial leaves needs to be readjusted every time the water level changes. Furthermore, existing breeding tanks cannot securely hold the heater. When people need to take betta fish or other fish that require a certain temperature with them, they have to use heat packs to maintain the temperature of the breeding tank. This makes the temperature unstable during transportation. If the heater is placed directly inside the breeding tank, it will shake during transportation and may hit the betta fish.

[0006] Therefore, a freshwater aquaculture fry breeding box was designed to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of the prior art by providing a freshwater fish fry breeding box.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a freshwater aquaculture fry breeding box, comprising a box body, a movable cover movably installed on the upper surface of the box body, a convex plate installed inside the box body via a moving and fixing mechanism, an air-blocking component installed on the upper surface of the convex plate via an inflation adjustment mechanism, simulated tree branches installed on the inner side of the convex plate via a swing mechanism, a power cord installed inside the box body via a tightening and loosening fixing mechanism, a handle installed on the upper surface of the movable cover via a lifting mechanism, a feeding trough opened on the upper surface of the movable cover, and a pulling column installed on the front side of the feeding trough via a pull-out mechanism;

[0009] The inflation adjustment mechanism includes an airbag fixedly installed on the upper surface of the convex plate. A hose is fixedly installed at the upper end of the airbag. A perforation is opened on the front surface of the box. A silicone sleeve is fixedly installed on the inner surface of the perforation. The hose is movably installed on the inner surface of the silicone sleeve. An air-blocking component is movably installed in the front end of the hose.

[0010] Preferably, the moving and securing mechanism includes two L-shaped limiting frames fixedly installed on the inner surface of the front part of the housing. A vertical moving column is movably installed in the groove of the two L-shaped limiting frames, and a convex plate is fixedly installed on the rear surface of the vertical moving column. Two locking plates are fixedly installed on the lower surface of the convex plate, and each locking plate is movably installed on the rear surface of each L-shaped limiting frame. A wing screw is movably passed through the rear surface of each locking plate, and the wing screw is threadedly engaged with the locking plate.

[0011] Preferably, the swing mechanism includes a connecting plate fixedly installed inside the convex plate. The upper surface of the connecting plate has a swing hole, and a simulated tree branch is movably installed in the swing hole. Two simulated leaves are fixedly installed at the upper end of the simulated tree branch. Rotating columns are fixedly installed on both sides of the simulated tree branch. A limiting plate is fixedly installed on the rear surface of each rotating column. Rotating grooves are opened on both sides of the connecting plate. A swing groove is opened on the rear surface of each rotating groove. The rotating columns are movably installed on the inner surface of the rotating grooves, and the limiting plates are movably installed on the inner surface of the swing grooves.

[0012] Preferably, a connecting rope is fixedly installed at the lower end of the simulated tree branch, and five baffles are fixedly installed on the outer surface of the connecting rope.

[0013] Preferably, the tensioning and fixing mechanism includes a fixing plate fixedly installed on the inner surface of the front of the housing, and the fixing plate is installed inside the spoiler. Tensioning ropes are fixedly installed at both ends of the fixing plate. A heating rod is movably installed between the tensioning ropes and the fixing plate. A power cord is fixedly installed on the upper surface of the heating rod.

[0014] Preferably, the lifting mechanism includes two connectors fixedly installed at the front and rear of the upper surface of the snap cover, each connector having a rotating shaft movably passing through it, a handle being movably installed on the upper surface of the snap cover, and the two rotating shafts being fixedly installed on both sides of the handle.

[0015] Preferably, the pull-out mechanism includes an L-shaped groove formed on the front side of the feeding trough, a fan-shaped component is fixedly installed on the upper surface of the snap-on cover, and the fan-shaped component is installed on the upper surface of the L-shaped groove. A pull-out column is movably passed through the inner surface of the fan-shaped component. A pull-out plate is fixedly installed on the outer side of the pull-out column, and the pull-out plate is movably installed in the L-shaped groove. A tension column is fixedly installed on the outer surface of the pull-out column, and a spring is movably sleeved on the outer surface of the pull-out column, and the spring is movably installed between the fan-shaped component and the tension column.

[0016] Preferably, a flip cover is movably installed on the upper surface of the snap-on cover, and the flip cover is movably installed on the upper surface of the feeding trough, and the flip cover is movably installed on the rear side of the pull-out plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention can adjust the position of the simulated leaf by the amount of gas in the airbag. This way, the bubbles near the simulated leaf will not burst when the leaf is held by hand. Also, each time the water is changed, the simulated leaf will automatically adjust its height as the water level changes, without the need for readjustment.

[0019] Heated by a heating rod, the breeding box maintains a stable temperature during transportation. The baffle plate gently oscillates to promote water flow and ensure uniform temperature within the breeding box. The L-shaped groove and pull-out plate prevent power cord displacement.

[0020] By tightening the wing screws, the convex plate is fixed to the rear surface of the L-shaped limit frame, which can prevent the convex plate from moving the simulated tree branches up and down during transportation. By fixing the heating rods in the breeding box, heating rods of different models can be fixedly placed in the breeding box.

[0021] The handle is fixed by a pivot and connector, making the breeding box easy to carry. The power cord is connected to a power bank to power the heating rod. Tightening the wing screws can fix the convex plate to the rear surface of the L-shaped limit frame, thus preventing the convex plate from moving the simulated tree branch up and down during transportation. The flip cover can be opened to put fish food into the feeding trough. The breeding box is not only easy to carry and can be heated, but also meets the needs of daily breeding. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a freshwater aquaculture fry breeding box according to the present invention;

[0023] Figure 2This is a schematic diagram of the internal structure of a freshwater fish fry breeding box according to the present invention.

[0024] Figure 3 This is a schematic diagram of the transfer and fixation mechanism of a freshwater aquaculture fry breeding box according to the present invention.

[0025] Figure 4 This is a schematic diagram of the inflation adjustment mechanism of a freshwater aquaculture fry breeding box according to the present invention.

[0026] Figure 5 This is a schematic diagram of the baffle structure of a freshwater fish fry breeding box according to the present invention;

[0027] Figure 6 This invention relates to a freshwater fish fry breeding box. Figure 5 A magnified structural diagram at point A;

[0028] Figure 7 This is a schematic diagram of the rotating column and limiting plate structure of a freshwater aquaculture fish fry breeding box according to the present invention.

[0029] Figure 8 This is a schematic diagram of the tensioning and fixing mechanism of a freshwater aquaculture fish fry breeding box according to the present invention.

[0030] Figure 9 This is a schematic diagram of the feeding trough and L-shaped trough structure of a freshwater aquaculture fry breeding box according to the present invention.

[0031] Figure 10 This is a schematic diagram of the flip-top structure of a freshwater fish fry breeding box according to the present invention;

[0032] Figure 11 This invention relates to a freshwater fish fry breeding box. Figure 10 A magnified structural diagram at point B;

[0033] In the diagram: 1. Box body; 2. Retractable cover; 3. L-shaped limit bracket; 4. Vertical sliding column; 5. Convex plate; 6. Locking plate; 7. Wing screw; 8. Airbag; 9. Hose; 10. Perforation; 11. Silicone sleeve; 12. Air plug; 13. Connecting plate; 14. Swing hole; 15. Swing groove; 16. Rotating groove; 17. Rotating column; 18. Limiting plate; 19. Simulated tree branch; 20. Connecting rope; 21. Spoiler; 22. Simulated leaf; 23. Fixing plate; 24. Elastic rope; 25. Heating rod; 26. Power cord; 27. Connector; 28. Rotating shaft; 29. ​​Handle; 30. Feeding trough; 31. L-shaped groove; 32. Flip cover; 33. Pull-out plate; 34. Pull-out column; 35. Fan-shaped component; 36. Spring; 37. Pull column. Detailed Implementation

[0034] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0035] like Figures 1-11 The above-displayed freshwater aquaculture fry breeding box includes a box body 1, a movable cover 2 on the upper surface of the box body 1, a convex plate 5 installed inside the box body 1 via a moving and fixing mechanism, an air-blocking component 12 installed on the upper surface of the convex plate 5 via an inflation adjustment mechanism, an artificial tree branch 19 installed on the inner side of the convex plate 5 via a swing mechanism, a power cord 26 installed inside the box body 1 via a tightening and loosening fixing mechanism, a handle 29 installed on the upper surface of the movable cover 2 via a lifting mechanism, a feeding trough 30 opened on the upper surface of the movable cover 2, and a pulling column 37 installed on the front side of the feeding trough 30 via a pull-out mechanism;

[0036] The inflation adjustment mechanism includes an airbag 8 fixedly mounted on the upper surface of the convex plate 5. A hose 9 is fixedly mounted on the upper end of the airbag 8. A perforation 10 is opened on the front surface of the housing 1. A silicone sleeve 11 is fixedly mounted on the inner surface of the perforation 10, and the hose 9 is movably mounted on the inner surface of the silicone sleeve 11. An air-blocking component 12 is movably mounted inside the front end of the hose 9. Inflation of the airbag 8 through the hose 9 causes the airbag 8 to lift the convex plate 5. The silicone sleeve 11 inside the perforation 10 prevents water from flowing out from the connection between the hose 9 and the housing 1. The air-blocking component 12 blocks the hose 9, preventing water from flowing out. To prevent the gas inside the airbag 8 from overflowing, the position of the convex plate 5 is adjusted by the amount of gas inside the airbag 8. When the convex plate 5 needs to be adjusted upward, pinch the outer end of the hose 9 and pull out the air plug 12. Insert the end of the air pump into the hose 9 and release to pump air in. When the convex plate 5 needs to be adjusted downward, pinch the outer end of the hose 9 and pull out the air plug 12. Slightly loosen the grip on the hose 9 to allow the gas inside the airbag 8 to flow out slightly until the convex plate 5 is lowered to the appropriate position. Quickly tighten the hose 9 and re-plug the air plug 12.

[0037] The moving and securing mechanism includes two L-shaped limiting frames 3 fixedly installed on the inner front surface of the housing 1. Vertical moving columns 4 are movably installed in the grooves of the two L-shaped limiting frames 3, and convex plates 5 are fixedly installed on the rear surface of the vertical moving columns 4. Two locking plates 6 are fixedly installed on the lower surface of the convex plates 5, and each locking plate 6 is movably installed on the rear surface of each L-shaped limiting frame 3. A wing screw 7 is movably inserted through the rear surface of each locking plate 6, and the wing screw 7 is threadedly engaged with the locking plate 6. Through the vertical moving columns 4 movably installed in the grooves of the L-shaped limiting frames 3, the convex plates 5 can move up and down without shifting. When the amount of gas in the airbag 8 is increased, the convex plates 5 will move up along the L-shaped limiting frames 3. Tightening the wing screws 7 can fix the convex plates 5 on the rear surface of the L-shaped limiting frames 3, thereby preventing the convex plates 5 from driving the simulated tree branches 19 up and down during transportation.

[0038] The swing mechanism includes a connecting plate 13 fixedly installed inside the convex plate 5. A swing hole 14 is opened on the upper surface of the connecting plate 13. An artificial tree branch 19 is movably installed in the swing hole 14. Two artificial leaves 22 are fixedly installed on the upper end of the artificial tree branch 19. Rotating columns 17 are fixedly installed on both sides of the artificial tree branch 19. A limit plate 18 is fixedly installed on the rear surface of each rotating column 17. A rotating groove 16 is opened on both sides of the connecting plate 13. A swing groove 15 is opened on the rear surface of each rotating groove 16. The rotating column 17 is movably installed on the inner surface of the rotating groove 16. The limit plate 18 is movably installed on the inner surface of the swing groove 15. When the water flow causes the artificial leaves 22 to swing, the rotating columns 17 on both sides of the artificial leaves 22 drive the limit plate 18 to rotate in the rotating groove 16. The limit plate 18 touches the inner wall of the swing groove 15, thereby limiting the rotation range. The betta fish will hide between the two artificial leaves 22, which can give the betta fish a sense of security.

[0039] A connecting rope 20 is fixedly installed at the lower end of the simulated tree branch 19. Five baffles 21 are fixedly installed on the outer surface of the connecting rope 20. When the simulated tree leaf 22 rotates, it causes the connecting rope 20 and the baffles 21 on the connecting rope 20 to swing slightly, promoting water flow and making the temperature in the breeding box uniform.

[0040] The tensioning and fixing mechanism includes a fixing plate 23 fixedly installed on the inner surface of the front of the box 1, and the fixing plate 23 is installed inside the baffle 21. Tensioning ropes 24 are fixedly installed at both ends of the fixing plate 23. A heating rod 25 is movably installed between the tensioning ropes 24 and the fixing plate 23. A power cord 26 is fixedly installed on the upper surface of the heating rod 25. Different models of heating rods 25 can be adapted through the tensioning ropes 24. By heating with the heating rods 25, the breeding box can maintain a stable temperature during transportation, which can meet the daily breeding needs.

[0041] The carrying mechanism includes two connectors 27 fixedly installed on the front and back of the upper surface of the snap cover 2. Each connector 27 has a rotating shaft 28 that can be moved through it. A handle 29 is movably installed on the upper surface of the snap cover 2, and the two rotating shafts 28 are fixedly installed on both sides of the handle 29. The handle 29, which is movably fixed to the connectors 27 through the rotating shafts 28, is convenient for carrying and transporting the breeding box.

[0042] The pull-out mechanism includes an L-shaped groove 31 on the front side of the feeding trough 30. A fan-shaped component 35 is fixedly installed on the upper surface of the snap cover 2, and the fan-shaped component 35 is installed on the upper surface of the L-shaped groove 31. A pull-out post 34 is movably inserted through the inner surface of the fan-shaped component 35. A pull-out plate 33 is fixedly installed on the outer side of the pull-out post 34, and the pull-out plate 33 is movably installed in the L-shaped groove 31. A tension post 37 is fixedly installed on the outer surface of the pull-out post 34. A spring 36 is movably sleeved on the outer surface of the pull-out post 34, and the spring 36 is movably installed between the fan-shaped component 35 and the tension post 37. When the tension post 37 is pulled inward, the pull-out post 34 drives the pull-out plate 33 to move inward along the long groove in the L-shaped groove 31. The spring 36 between the fan-shaped component 35 and the tension post 37 is compressed and contracts, thereby inserting the power cord 26. When the tension post 37 is released, the spring 36 pushes against the tension post 37 to reset, thereby driving the pull-out plate 33 to reset and preventing the power cord 26 from shifting.

[0043] A flip cover 32 is movably installed on the upper surface of the snap cover 2, and the flip cover 32 is movably installed on the upper surface of the feeding trough 30 and on the rear side of the pull-out plate 33. The flip cover 32 is an existing device and will not be described in detail here. Opening the flip cover 32 allows fish food to be put into the feeding trough 30, which can meet the daily breeding needs.

[0044] During use, air is inflated into the airbag 8 through the hose 9, causing the airbag 8 to lift the convex plate 5 to a suitable position. The silicone sleeve 11 inside the perforation 10 prevents water from leaking out from the connection between the hose 9 and the housing 1. After inflation, the hose 9 is blocked by the air-blocking component 12 to prevent the gas inflated into the airbag 8 from escaping. The heating rod 25 is placed inside the elastic rope 24 of the housing 1. The flip cover 32 is opened, and the power cord 26 is passed through the feeding trough 30. The pull column 37 is pulled inward, causing the pull plate 33 to move inward along the long groove within the L-shaped groove 31 via the pull column 34. The fan-shaped component 35 interacts with the pull column 37. When the spring 36 is compressed, it moves the power cord 26 from the feeding trough 30 into the L-shaped groove 31. The tension column 37 is released, and the spring 36 pushes against it to reset, thereby resetting the pull-out plate 33 and preventing the power cord 26 from shifting. When the water flow causes the simulated leaf 22 to sway, the rotating columns 17 on both sides of the simulated leaf 22 drive the limiting plate 18 to rotate within the rotating groove 16. The limiting plate 18 touches the inner wall of the swing groove 15, thus limiting the rotation range. When the simulated leaf 22 rotates, it causes the connecting rope 20 and the baffle 21 on the connecting rope 20 to sway slightly, promoting water flow. This ensures uniform temperature within the breeding tank. When taking the betta fish out, the handle 29, which is movable and fixed via the pivot 28 and connector 27, facilitates carrying the breeding tank. Connecting the power cord 26 to a power bank provides power to the heater 25. Tightening the wing screw 7 fixes the convex plate 5 to the rear surface of the L-shaped limit frame 3, preventing the convex plate 5 from moving the simulated tree branch 19 up and down during transport. The flip cover 32 can be opened to add fish food to the feeding trough 30. Due to water changes, cleaning feces, and other reasons, the water level in the breeding tank may increase or decrease. The air bladder 8... With the gas volume inside remaining constant, when the water level changes, the simulated leaves 22 will automatically adjust their height according to the water volume without needing to be readjusted. When the height of the convex plate 5 is not satisfactory and needs to be adjusted upwards, pinch the outer end of the hose 9 to pull out the air plug 12, insert the end of the air pump into the hose 9, and release to pump air inwards. When the height of the convex plate 5 needs to be adjusted downwards, pinch the outer end of the hose 9 to pull out the air plug 12, slightly loosen the grip on the hose 9 to allow the gas in the airbag 8 to flow out slightly until the convex plate 5 is lowered to the appropriate position, quickly tighten the hose 9, and re-plug the air plug 12.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made without departing from the spirit and scope of the invention, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A freshwater aquaculture fry breeding box, comprising a box body (1), characterized in that: The upper surface of the box (1) is movably fitted with a snap cover (2). Inside the box (1) is a convex plate (5) installed by a moving and fixing mechanism. On the upper surface of the convex plate (5) is an air-blocking component (12) installed by an inflation adjustment mechanism. On the inner side of the convex plate (5) is a simulated tree branch (19) installed by a swing mechanism. Inside the box (1) is a power cord (26) installed by a tension fixing mechanism. On the upper surface of the snap cover (2) is a handle (29) installed by a lifting mechanism. On the upper surface of the snap cover (2) is a feeding trough (30). On the front side of the feeding trough (30) is a pull column (37) installed by a pull mechanism. The inflation adjustment mechanism includes an airbag (8) fixedly installed on the upper surface of the convex plate (5), a hose (9) fixedly installed on the upper end of the airbag (8), a perforation (10) is opened on the front surface of the box (1), a silicone sleeve (11) is fixedly installed on the inner surface of the perforation (10), and the hose (9) is movably installed on the inner surface of the silicone sleeve (11), and an air-blocking component (12) is movably installed in the front end of the hose (9). The swing mechanism includes a connecting plate (13) fixedly installed inside the convex plate (5). A swing hole (14) is opened on the upper surface of the connecting plate (13). An artificial tree branch (19) is movably installed in the swing hole (14). Two artificial leaves (22) are fixedly installed on the upper end of the artificial tree branch (19). Rotating columns (17) are fixedly installed on both sides of the artificial tree branch (19). A limiting plate (18) is fixedly installed on the rear surface of each rotating column (17). Rotating grooves (16) are opened on both sides of the connecting plate (13). A swing groove (15) is opened on the rear surface of each rotating groove (16). The rotating column (17) is movably installed on the inner surface of the rotating groove (16). The limiting plate (18) is movably installed on the inner surface of the swing groove (15). The lower end of the simulated tree branch (19) is fixedly installed with a connecting rope (20), and five baffles (21) are fixedly installed on the outer surface of the connecting rope (20). The tensioning and fixing mechanism includes a fixing plate (23) fixedly installed on the inner surface of the front part of the box (1), and the fixing plate (23) is installed inside the spoiler (21). Tensioning ropes (24) are fixedly installed at both ends of the fixing plate (23). A heating rod (25) is movably installed between the tensioning rope (24) and the fixing plate (23). A power cord (26) is fixedly installed on the upper surface of the heating rod (25).

2. The freshwater fish fry breeding box according to claim 1, characterized in that: The moving and fixing mechanism includes two L-shaped limiting frames (3) fixedly installed on the inner surface of the front part of the box (1). A vertical moving column (4) is movably installed in the groove of the two L-shaped limiting frames (3). A convex plate (5) is fixedly installed on the rear surface of the vertical moving column (4). Two locking plates (6) are fixedly installed on the lower surface of the convex plate (5). Each locking plate (6) is movably installed on the rear surface of each L-shaped limiting frame (3). A wing screw (7) is movably passed through the rear surface of each locking plate (6). The wing screw (7) is threadedly engaged with the locking plate (6).

3. The freshwater fish fry breeding box according to claim 1, characterized in that: The lifting mechanism includes two connectors (27) fixedly installed on the front and back of the upper surface of the snap cover (2). Each connector (27) has a rotating shaft (28) movably passing through it. A handle (29) is movably installed on the upper surface of the snap cover (2), and the two rotating shafts (28) are fixedly installed on both sides of the handle (29).

4. The freshwater fish fry breeding box according to claim 1, characterized in that: The pull-out mechanism includes an L-shaped groove (31) opened on the front side of the feeding trough (30), a fan-shaped component (35) is fixedly installed on the upper surface of the snap cover (2), and the fan-shaped component (35) is installed on the upper surface of the L-shaped groove (31). A pull-out column (34) is movably passed through the inner surface of the fan-shaped component (35). A pull-out plate (33) is fixedly installed on the outer side of the pull-out column (34), and the pull-out plate (33) is movably installed in the L-shaped groove (31). A tension column (37) is fixedly installed on the outer surface of the pull-out column (34), and a spring (36) is movably sleeved on the outer surface of the pull-out column (34), and the spring (36) is movably installed between the fan-shaped component (35) and the tension column (37).

5. A freshwater fish fry breeding box according to claim 4, characterized in that: The upper surface of the snap cover (2) is movably mounted with a flip cover (32), and the flip cover (32) is movably mounted on the upper surface of the feeding trough (30), and the flip cover (32) is movably mounted on the rear side of the pull-out plate (33).

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