Zebra fish culture device

Abstract

The zebra fish culture device comprises a frame, an oxygen supply adjusting mechanism, an installation clamping mechanism and a clamping auxiliary mechanism, the oxygen supply adjusting mechanism comprises a movable beam, a lead screw lifting assembly, an installation frame, an oxygen supply pipe and an immersion pipe, and the installation clamping mechanism comprises a clamping pipe, a clamping rod, a clamping groove, an extending-in rod, a rotary limiting block and a connecting groove. Through the design of a movable beam and a lead screw lifting assembly, an oxygen supply pipe can be adjusted up and down according to needs, the oxygen supply amount is accurately controlled, and therefore it is ensured that the oxygen concentration in the zebra fish culture environment is appropriate, the oxygen supply pipe is stably fixed through a mounting frame, and through the matched design of a clamping rod and a clamping pipe, the equipment can be rapidly clamped and disassembled; a user can conveniently replace or clean the culture tank, and the operation convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of fish farming technology, and more specifically, to a zebrafish culture device. Background Technology

[0002] In traditional zebrafish culture devices, the height or insertion depth of the oxygen supply tube is usually changed by rotating a lead screw or manually adjusting it. This operation is cumbersome and difficult to control precisely. Especially in multi-group culture systems, the oxygen supply requirements of each culture tank may be different. Manual adjustment is not only time-consuming, but may also lead to uneven oxygen supply, affecting the growth environment of the zebrafish.

[0003] Different scales and types of zebrafish experiments may require different oxygen supply configurations, but the existing oxygen supply adjustment mechanisms are relatively simple and cannot meet diverse experimental needs. When rapid changes to the oxygen supply environment are required, significant human intervention is often necessary, increasing operational complexity and the risk of error.

[0004] In existing technologies, most zebrafish culture devices have bulky and fixed culture tank designs. Traditional culture tanks usually need to be manually fixed into the device frame. During the operation, the position may need to be adjusted multiple times, screws tightened, or tools used to complete the installation. This not only wastes time, but may also cause certain operational difficulties during the assembly process, especially when it is necessary to replace or clean the culture tank. The operation is even more difficult. Disassembling the culture tank is also difficult, especially when performing equipment maintenance or changing experimental materials. Traditional fixed structures often require disassembling multiple parts, resulting in a cumbersome process and a large amount of time consumption. In addition, the problem of lost or damaged parts is easy to occur during disassembly, which affects the long-term use of the equipment. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a zebrafish culture device to solve the technical problems mentioned in the background art, such as the inability to quickly adjust the oxygen supply position and the inconvenience of installing and disassembling the culture tank.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a zebrafish culture device, comprising a frame, an oxygen supply adjustment mechanism, an installation and locking mechanism, and a locking auxiliary mechanism. The oxygen supply adjustment mechanism includes a moving beam, a screw lifting assembly, a mounting frame, an oxygen supply pipe, and an immersion pipe. The moving beam is slidably mounted on the top end of the frame. The screw lifting assembly is mounted on the moving beam. The mounting frame is mounted on the screw lifting assembly. The oxygen supply pipe is mounted on the mounting frame, and both ends of the oxygen supply pipe are connected to an external oxygen supply device and an immersion pipe, respectively. The installation and locking mechanism includes a locking pipe, a locking rod, a locking groove, an extension rod, a limiting block, and a connecting groove. The locking groove is located on the side wall of the locking rod. The extension rod is slidably mounted laterally on the side wall of the locking pipe. The limiting block is rotatably mounted on the outer wall of the locking pipe, and adjacent limiting blocks move towards each other. The connecting groove is located inside the limiting block. One end of the extension rod is slidably connected to the connecting groove, and the extension rod can extend into or away from the locking groove.

[0009] The present invention is further configured such that the locking auxiliary mechanism includes a push-receiving rotary plate, an upper push block, a rotary push plate, a rotating block, a spring rod, and mating holes. The rotary push plate is rotatably mounted on the outer wall of the locking tube, the rotating block is mounted on the bottom end of the rotary push plate, the spring rod is mounted on the rotating block, and multiple sets of mating holes are arranged in a ring on the outer wall of the locking tube. The spring rod extends into different mating holes in stages, so that the rotating block and the rotary push plate rotate stably. The upper push block is longitudinally slidably mounted on the outer wall of the locking tube, and the push-receiving rotary plate is located at the bottom end of the upper push block. The rotary push plate can push the push-receiving plate, so that the upper push block slides longitudinally, so that the rotary limit block moves, and the connecting groove is used to move the inserted rod away from the locking groove.

[0010] The present invention is further configured such that an installation frame is installed at the top end of the frame, and multiple sets of installation frames are provided, and a culture tank is installed inside the installation frame, and the immersion tube can be immersed in the culture tank for continuous nutrient supply.

[0011] The present invention is further provided that a connecting plate is installed at the bottom end of the side wall of the clamping pipe, and the connecting plate is fixedly installed on the mounting frame. The setting of the connecting plate facilitates the stable installation of the clamping pipe.

[0012] The present invention is further configured such that one end of the snap-fit ​​rod can pass through the culture tank and extend further through the mounting frame to engage with the snap-fit ​​tube for quick snap-fit. The snap-fit ​​rod passes through the culture tank and engages with the snap-fit ​​tube to achieve quick installation and disassembly, making it convenient for users to replace or clean the culture tank and improving operational convenience.

[0013] The present invention is further configured such that a toothed plate and a directional rail are installed on the side of the frame, and a sliding sleeve is installed on the directional rail. The top end of the sliding sleeve is connected to the moving beam. The toothed plate provides a stable meshing structure, which, together with the sliding sleeve on the directional rail, enables the moving beam to slide smoothly along the frame, thereby improving the adjustability of the oxygen supply system.

[0014] The present invention is further configured such that a drive motor is installed at the bottom of the sliding sleeve, and a rotating tooth is installed at the output end of the drive motor, and the rotating tooth is meshed with the tooth plate. By driving the rotating tooth to mesh with the tooth plate through the motor, automated movement is achieved, thereby improving the ease of operation.

[0015] The present invention is further configured such that a spring support plate is installed between the rotating blocks, and the spring support plate pushes the rotating blocks to move relative to each other, so that the connecting groove pushes the extension rod into the slot.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a zebrafish culture device with the following advantages:

[0018] This invention features an oxygen supply adjustment mechanism. Through the design of a moving beam and a lead screw lifting assembly, the oxygen supply pipe can be adjusted up and down as needed to precisely control the oxygen supply, thereby ensuring a suitable oxygen concentration in the zebrafish culture environment. The oxygen supply pipe is stably fixed by a mounting bracket, reducing shaking and instability in the oxygen supply system and improving the system's reliability. This mechanism is flexibly adjustable to adapt to the needs of culture tanks of different depths.

[0019] This utility model features an installation snap-fit ​​mechanism. The design of the snap-fit ​​rod and snap-fit ​​tube allows for quick snap-fitting and disassembly of the equipment, facilitating user replacement or cleaning of the culture tank and improving operational convenience. The design of the snap-fit ​​groove, extension rod, and limiting block ensures the robustness of the snap-fit ​​mechanism, preventing loosening or detachment during use and ensuring stable operation of the equipment. The extension and retraction of the extension rod can adjust the tightness of the snap-fit ​​to meet the needs of different culture tanks.

[0020] This invention incorporates a locking auxiliary mechanism. The design of the rotary push plate, rotating block, and spring rod enables the locking mechanism to move stably and precisely, ensuring that the inserted rod can smoothly move away from or into the locking slot, thus improving the stability of the locking mechanism. Through the interaction between the rotary push plate and the pushed rotary plate, precise control is achieved during the locking process, avoiding manual intervention and improving the degree of automation. The design of the spring rod and the mating hole makes the movement of the rotary push plate and the rotating block smoother, ensuring the accuracy of the locking and helping to improve the overall system's ease of operation and reliability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0022] Figure 2 This is a schematic diagram of the oxygen supply adjustment mechanism in this utility model;

[0023] Figure 3This is a structural schematic diagram of the culture tank installation method in this utility model;

[0024] Figure 4 This is a schematic diagram of the installation snap-fit ​​mechanism and snap-fit ​​auxiliary mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the mounting clipping mechanism and the clipping auxiliary mechanism in this utility model.

[0026] In the diagram: 1. Frame; 2. Moving beam; 3. Screw lifting assembly; 4. Mounting frame; 5. Oxygen supply pipe; 6. Immersion pipe; 7. Clamping pipe; 8. Clamping rod; 9. Clamping groove; 10. Extension rod; 11. Rotation limiting block; 12. Connecting groove; 13. Push plate; 14. Pushing block; 15. Rotating push plate; 16. Rotating block; 17. Spring rod; 18. Mating hole; 19. Mounting frame; 20. Culture tank; 21. Connecting plate; 22. Toothed plate; 23. Directional rail; 24. Sliding sleeve; 25. Drive motor; 26. Rotating gear; 27. Spring support plate. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5A zebrafish culture device includes a frame 1, an oxygen supply adjustment mechanism, a mounting and clamping mechanism, and a clamping auxiliary mechanism. The oxygen supply adjustment mechanism includes a moving beam 2, a lead screw lifting assembly 3, a mounting frame 4, an oxygen supply pipe 5, and an immersion pipe 6. The moving beam 2 is slidably mounted on the top end of the frame 1. The lead screw lifting assembly is mounted on the moving beam 2. The mounting frame 4 is mounted on the lead screw lifting assembly. The oxygen supply pipe 5 is mounted on the mounting frame 4, and both ends of the oxygen supply pipe 5 are connected to an external oxygen supply device and the immersion pipe 6, respectively. The locking mechanism includes a locking tube 7, a locking rod 8, a locking groove 9, an extension rod 10, a limiting block 11, and a connecting groove 12. The locking groove 9 is located on the side wall of the locking rod 8. The extension rod 10 is laterally slidably mounted on the side wall of the locking tube 7. The limiting block 11 is rotatably limited and located on the outer wall of the locking tube 7, and adjacent limiting blocks 11 move towards each other. The connecting groove 12 is located inside the limiting block 11. One end of the extension rod 10 is slidably connected to the connecting groove 12. The extension rod 10 can extend into or away from the locking groove 9.

[0031] In this embodiment, the movable beam 2 is slidably mounted on the top end of the frame 1. The oxygen supply pipe 5 can be adjusted within the frame 1 by sliding. The lifting screw assembly mounted on the movable beam 2 can adjust the oxygen supply pipe 5 up and down by rotating the screw. The user can precisely control the position of the oxygen supply pipe 5 by controlling the lifting screw assembly, ensuring optimal adjustment of the distance between it and the immersion pipe 6, thereby meeting the oxygen requirements of the zebrafish. The oxygen supply pipe 5 is mounted on the mounting bracket 4, and both ends of the oxygen supply pipe 5 are connected to an external oxygen supply device and the immersion pipe 6, respectively. Oxygen is continuously supplied to the oxygen supply pipe 5 through the external oxygen supply device. Oxygen is then introduced into the culture tank 20 through the immersion tube 6. One end of the snap-fit ​​rod 8 engages with the inside of the snap-fit ​​tube 7, inserting the snap-fit ​​rod 8 into the snap-fit ​​tube 7 to form a stable connection. The extension rod 10 is laterally slidably mounted on the side wall of the snap-fit ​​tube 7. The movement of the extension rod 10 is achieved through the interaction between the connecting groove 12 and the limiting block 11. The movement of the extension rod 10 within the snap-fit ​​groove 9 ensures that the snap-fit ​​rod 8 is fixed in the correct position. The limiting block 11 is mounted on the outer wall of the snap-fit ​​tube 7, and its main function is to restrict the position of the extension rod 10, so that the extension rod 10 can be precisely positioned through the cooperation of the limiting block 11 and the connecting groove 12.

[0032] The locking auxiliary mechanism includes a push plate 13, an upper push block 14, a rotary push plate 15, a rotating block 16, a spring rod 17, and mating holes 18. The rotary push plate 15 is rotatably mounted on the outer wall of the locking tube 7. The rotating block 16 is mounted on the bottom end of the rotary push plate 15. The spring rod 17 is mounted on the rotating block 16. Multiple sets of mating holes 18 are arranged in a ring on the outer wall of the locking tube 7. The spring rod 17 extends into different mating holes 18 in stages, so that the rotating block 16 and the rotary push plate 15 rotate stably. The upper push block 14 is longitudinally slidably mounted on the outer wall of the locking tube 7. The push plate 13 is located at the bottom end of the upper push block 14. The rotary push plate 15 can push the push plate, so that the upper push block 14 slides longitudinally, so that the rotary limiting block 11 moves. The connecting groove 12 is used to move the extension rod 10 away from the locking groove 9.

[0033] In this embodiment, the rotary push plate 15 is installed on the outer wall of the clamping tube 7 and can be limited to rotate. The rotary push plate 15 is connected to the rotating block 16. The rotating block 16 extends into different mating holes 18 step by step through the action of the spring rod 17, so that the rotary push plate 15 can rotate stably. When the device is released from the clamping, the rotary push plate 15 is rotated to make the pushed rotary plate 13 move longitudinally. The upper push block 14 will slide longitudinally along the outer wall of the clamping tube 7, driving the rotary limiting block 11 to move relative to each other. This causes the connecting groove 12 to pull the extension rod 10 to release the clamping. The upper push block 14 moves away, and the spring support plate 27 pushes the rotary limiting block 11 in the opposite direction, so that the extension rod 10 extends into the clamping groove 9. Through the design of the clamping mechanism, the clamping process can be ensured to be fast and stable, and will not be loosened due to improper human operation.

[0034] Please see Figures 1-5 As a supplementary embodiment of a zebrafish culture device for the oxygen supply adjustment mechanism, the mounting clamping mechanism, and the clamping auxiliary mechanism: A mounting frame 19 is installed at the top end of the frame 1, and multiple sets of mounting frames 19 are provided. A culture tank 20 is installed inside the mounting frame 19. The immersion tube 6 can be immersed in the culture tank 20 for continuous oxygen supply. A connecting plate 21 is installed at the bottom end of the side wall of the clamping tube 7, and the connecting plate 21 is fixedly installed on the mounting frame 19. One end of the clamping rod 8 can pass through the culture tank 20 and further extend beyond the mounting frame 19 and the clamping tube 7. With the quick-connection mechanism, a toothed plate 22 and a directional rail 23 are installed on the side of the frame 1, and a sliding sleeve 24 is installed on the directional rail 23. The top end of the sliding sleeve 24 is connected to the moving beam 2. A drive motor 25 is installed at the bottom of the sliding sleeve 24, and a rotating tooth 26 is installed at the output end of the drive motor 25. The rotating tooth 26 meshes with the toothed plate 22. A spring support plate 27 is installed between the rotating limit blocks 11, and the spring support plate 27 pushes the rotating limit blocks 11 to move relative to each other, so that the connecting groove 12 pushes the extension rod 10 into the slot 9.

[0035] More specifically, the position of the oxygen supply pipe 5 is adjusted via the lifting screw assembly. The insertion depth of the oxygen supply pipe 5 is adjusted as needed to regulate the oxygen supply. The oxygen supply pipe 5 injects oxygen into the water, ensuring sufficient oxygen in the culture tank 20 for zebrafish growth. During the installation of the culture tank 20, a snap-fit ​​mechanism quickly and securely connects the various parts. The extension rod 10, through its cooperation with the connecting groove 12 and the snap-fit ​​groove 9, completes a quick snap-fit, facilitating modular maintenance. Throughout the process, the toothed plate 22 and the directional rail 23 system work together. The drive motor 25 on the sliding sleeve 24 controls the meshing of the rotating tooth 26 with the toothed plate 22, thereby controlling the precise adjustment of the oxygen supply system. Simultaneously, the sliding sleeve 24, in conjunction with the sliding of the moving beam 2, ensures the stability and accuracy of the oxygen supply adjustment mechanism.

[0036] In summary, during the use or operation of the overall equipment: when the oxygen supply adjustment mechanism is required, its function is to adjust the position of the oxygen supply pipe 5 to ensure that each group of zebrafish culture devices can provide a continuous and suitable oxygen supply. The moving beam 2 is slidably installed at the top end of the frame 1. By sliding, the position of the oxygen supply pipe 5 can be adjusted within the frame 1. The lifting screw assembly installed on the moving beam 2 can adjust the oxygen supply pipe 5 up and down by rotating the screw. Users can precisely control the position of the oxygen supply pipe 5 by controlling the lifting screw assembly to achieve the optimal adjustment of the distance between it and the immersion pipe 6, thereby meeting the oxygen requirements of the zebrafish. The oxygen supply pipe 5 is installed on the mounting frame 4, and both ends of the oxygen supply pipe 5 are connected to the external oxygen supply equipment and the immersion pipe 6, respectively. The external oxygen supply equipment continuously delivers oxygen to the oxygen supply pipe 5, and then the oxygen is sent into the culture tank 20 through the immersion pipe 6, providing a stable oxygen supply for the zebrafish.

[0037] When the snap-fit ​​mechanism is required, it facilitates the quick installation and disassembly of the culture tank 20 and the mounting frame 19. One end of the snap-fit ​​rod 8 engages with the inside of the snap-fit ​​tube 7, allowing the snap-fit ​​rod 8 to be inserted into the snap-fit ​​tube 7 to form a stable connection. The extension rod 10 is laterally slidably mounted on the side wall of the snap-fit ​​tube 7. The movement of the extension rod 10 is achieved through the interaction between the connecting groove 12 and the limiting block 11. The movement of the extension rod 10 within the snap-fit ​​groove 9 ensures that the snap-fit ​​rod 8 is fixed in the correct position. The limiting block 11 is mounted on the outer wall of the snap-fit ​​tube 7, and its main function is to limit the position of the extension rod 10, enabling the extension rod 10 to be precisely positioned. Through the cooperation of the limiting block 11 and the connecting groove 12, the stability of the snap-fit ​​rod 8 within the snap-fit ​​tube 7 is ensured. During the insertion or removal of the extension rod 10 from the snap-fit ​​groove 9, the adjustment of the limiting block 11 ensures a smooth and stable snap-fit ​​process.

[0038] When the locking auxiliary mechanism is in operation, the rotary push plate 15 is installed on the outer wall of the locking tube 7 and can be limited to rotate. The rotary push plate 15 is connected to the rotating block 16. The rotating block 16 extends into different mating holes 18 step by step through the action of the spring rod 17, so that the rotary push plate 15 can rotate stably. When the device is released from locking, the rotary push plate 15 is rotated to make the pushed rotary plate 13 move longitudinally. The upper push block 14 will slide longitudinally along the outer wall of the locking tube 7, driving the rotary limiting block 11 to move relative to each other. This causes the connecting groove 12 to pull the extension rod 10 to release the locking. The upper push block 14 moves away, and the spring support plate 27 pushes the rotary limiting block 11 in the opposite direction, so that the extension rod 10 extends into the locking groove 9. Through the design of the locking mechanism, the locking process can be ensured to be fast and stable, and will not be loosened due to improper human operation.

[0039] The position of the oxygen supply pipe 5 is adjusted by the lifting screw assembly. The insertion depth of the oxygen supply pipe 5 is adjusted as needed to regulate the oxygen supply. The oxygen supply pipe 5 injects oxygen into the water, ensuring sufficient oxygen in the culture tank 20 for zebrafish growth. During the installation of the culture tank 20, the snap-fit ​​mechanism quickly and securely connects the various parts. The extension rod 10, through its cooperation with the connecting groove 12 and the snap-fit ​​groove 9, completes the quick snap-fit, facilitating modular maintenance. Throughout the process, the toothed plate 22 and the directional rail 23 system work together. The drive motor 25 on the sliding sleeve 24 controls the meshing of the rotating tooth 26 with the toothed plate 22, thereby controlling the precise adjustment of the oxygen supply system. Simultaneously, the sliding sleeve 24, in conjunction with the sliding of the moving beam 2, ensures the stability and accuracy of the oxygen supply adjustment mechanism.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A zebrafish culture device, comprising a frame (1), an oxygen supply adjustment mechanism, an installation and clamping mechanism, and a clamping auxiliary mechanism, characterized in that: The oxygen supply adjustment mechanism includes a moving beam (2), a screw lifting assembly (3), a mounting frame (4), an oxygen supply pipe (5), and an immersion pipe (6). The moving beam (2) is slidably mounted on the top end of the frame (1). The screw lifting assembly is mounted on the moving beam (2). The mounting frame (4) is mounted on the screw lifting assembly. The oxygen supply pipe (5) is mounted on the mounting frame (4), and both ends of the oxygen supply pipe (5) are connected to an external oxygen supply device and the immersion pipe (6), respectively. The mounting clamping mechanism includes a clamping pipe (7), a clamping rod (8), and a clamping groove (9). 9) Insertion rod (10), limiting block (11) and connecting groove (12). The slot (9) is set on the side wall of the locking rod (8). The insertion rod (10) is slidably installed on the side wall of the locking tube (7). The limiting block (11) is limited and rotated on the outer wall of the locking tube (7). Adjacent limiting blocks (11) move towards each other. The connecting groove (12) is set inside the limiting block (11). One end of the insertion rod (10) is slidably connected with the connecting groove (12). The insertion rod (10) can extend into or away from the slot (9).

2. The zebrafish culture device according to claim 1, characterized in that: The locking auxiliary mechanism includes a push plate (13), an upper push block (14), a rotary push plate (15), a rotating block (16), a spring rod (17), and mating holes (18). The rotary push plate (15) is rotatably mounted on the outer wall of the locking tube (7). The rotating block (16) is mounted on the bottom end of the rotary push plate (15). The spring rod (17) is mounted on the rotating block (16). Multiple sets of mating holes (18) are arranged in a ring on the outer wall of the locking tube (7). The spring rod (17) extends into different mating holes (18) step by step to make the rotating block (16) and the rotary push plate (15) rotate stably. The upper push block (14) is longitudinally slidably mounted on the outer wall of the locking tube (7). The push plate (13) is located at the bottom end of the upper push block (14).

3. The zebrafish culture device according to claim 1, characterized in that: The top end of the frame (1) is provided with an installation frame (19), and multiple sets of installation frames (19) are provided. A culture tank (20) is installed inside the installation frame (19), and the immersion tube (6) can be immersed into the culture tank (20) for continuous nutrient supply.

4. The zebrafish culture device according to claim 3, characterized in that: A connecting plate (21) is installed at the bottom of the side wall of the card tube (7), and the connecting plate (21) is fixedly installed on the mounting frame (19).

5. A zebrafish culture device according to claim 3, characterized in that: One end of the snap-fit ​​rod (8) can pass through the culture tank (20) and extend further through the mounting frame (19) to quickly snap into place with the snap-fit ​​tube (7).

6. The zebrafish culture device according to claim 1, characterized in that: The frame (1) is provided with a toothed plate (22) and a directional rail (23) on its side, and a sliding sleeve (24) is provided on the directional rail (23), and the top end of the sliding sleeve (24) is connected to the moving beam (2).

7. A zebrafish culture device according to claim 6, characterized in that: The bottom of the sliding sleeve (24) is equipped with a drive motor (25), and the output end of the drive motor (25) is equipped with a rotating tooth (26), which meshes with the tooth plate (22).

8. A zebrafish culture device according to claim 1, characterized in that: A spring support plate (27) is installed between the rotating blocks (11), and the spring support plate (27) pushes the rotating blocks (11) to move relative to each other, so that the connecting groove (12) pushes the extension rod (10) into the slot (9).

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