A culture device for marine microalgae
By installing supplemental lighting and a servo motor-driven tray rotation in the cultivation device, the problems of insufficient light and inconvenient handling in marine microalgae cultivation devices have been solved, enabling efficient photosynthesis and convenient removal of marine microalgae.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI RUIST BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-16
AI Technical Summary
Existing marine microalgae cultivation devices cannot provide sufficient light, and it is inconvenient to remove the marine microalgae from the cultivation tube after cultivation, which reduces the practicality of the device.
Supplemental lights are placed around the culture bottles, and a servo motor drives the tray and culture bottles to rotate. Combined with the adjustment mechanism of the top cover, all-round illumination and convenient handling are achieved, ensuring that marine microalgae have full contact with light and carbon dioxide.
This technology enables all-round light irradiation and convenient handling of marine microalgae, improving the practicality and efficiency of the cultivation device.
Smart Images

Figure CN224362747U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of marine microalgae cultivation technology, specifically to a cultivation device for marine microalgae. Background Technology
[0002] Marine microalgae are tiny algae found in the ocean, belonging to single-celled or colonial protozoa capable of photosynthesis. Sufficient carbon dioxide and light are required when culturing marine microalgae.
[0003] Chinese utility model patent No. 213506916U discloses a marine microalgae cultivation device, including a "C"-shaped base, a fixed cylinder installed inside the base, and a cultivation cylinder inserted inside the fixed cylinder. A discharge pipe with a valve is connected to the bottom side of the outer wall of the cultivation cylinder. A supporting hemisphere is connected to the center of the bottom of the cultivation cylinder. A groove adapted to the supporting hemisphere is formed on the bottom side of the inner wall of the fixed cylinder. A feed cylinder communicating with the interior of the cultivation cylinder is installed at the top. A motor is bolted to the top of the base, and the output shaft of the motor extends into the base and is connected to a pulley. This solution uses supplemental lighting from above to illuminate the marine microalgae, but this is insufficient to adequately irradiate the microalgae and obtain sufficient light. Furthermore, it is inconvenient to remove the microalgae from the cultivation cylinder after cultivation, reducing the practicality of the device.
[0004] Therefore, this invention provides a device for cultivating marine microalgae. Utility Model Content
[0005] To address the shortcomings of existing technologies, the present invention aims to provide a cultivation device for marine microalgae, thereby solving the problems mentioned in the background section. The present invention, by uniformly arranging supplementary lighting lamps around the cultivation bottle corresponding to the inner wall of the fixed cylinder, can fully irradiate and illuminate the marine microalgae from all directions, facilitating photosynthesis. By placing the cultivation bottle and marine microalgae inside the fixed cylinder and the top cover for cultivation with and without light, and by adjusting the raising and rotating of the top cover, the cultivation bottle can be easily removed to retrieve the marine microalgae, thus improving the practicality of the device.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a cultivation device for marine microalgae, comprising a base, a fixed cylinder, and an adjustment mechanism disposed on the top of the base. The adjustment mechanism includes a fixed rod, a crossbar, and a top cover. The top cover is disposed below one end of the crossbar via an adjustment screw. A rotating ring is rotatably mounted on the inner wall of the top cover via an annular protrusion. The fixed cylinder is fixedly disposed at the center of the top of the base. A tray is disposed on the top of the base corresponding to the inner side of the fixed cylinder via a servo motor. A culture bottle is placed on the top of the tray. The culture bottle is disposed inside the fixed cylinder and the top cover. Supplemental lights are evenly distributed in a circular pattern on the inner wall of the fixed cylinder.
[0007] Furthermore, the base has an internal cavity, the servo motor is fixedly installed at the center of the internal cavity, and the tray is fixedly installed at the top of the output shaft of the servo motor.
[0008] Furthermore, the fixing rod is fixedly installed on the top of one end of the base, one end of the crossbar is rotatably fixed on the top of the fixing rod, and the adjusting screw is screwed into the inside of the other end of the crossbar.
[0009] Furthermore, the adjusting screw is rotatably mounted on the top of the cover, a knob is fixedly provided at the top of the adjusting screw, and an air supply pipe and an insertion pipe are fixedly installed on both sides of the top of the cover, respectively.
[0010] Furthermore, the top ends of the gas supply tube and the insertion tube are slidably installed inside the crossbar, the top end of the gas supply tube is equipped with a valve, the top end of the insertion tube is equipped with a rubber stopper, and the bottom ends of the gas supply tube and the insertion tube are inserted into the culture flask.
[0011] Furthermore, the annular protrusion is fixedly disposed on the inner wall of the upper cover, the rotating ring is rotatably mounted on the outer side of the annular protrusion, and the bottom end of the rotating ring is provided with a recess.
[0012] Furthermore, the rotating ring is fitted onto the outer side of the top of the culture flask, and a first rubber pad is fixedly provided on the inner wall of the recess, the first rubber pad being in close contact with the outer wall of the culture flask.
[0013] Furthermore, the supplemental light is located on the outside of the culture flask, the top cover is snapped onto the top of the fixing cylinder, and a second rubber pad is fixedly installed between the inner wall of the top cover and the fixing cylinder.
[0014] The beneficial effects of this utility model are as follows: This utility model provides a cultivation device for marine microalgae. By rotating and adjusting the crossbar at the top of the fixed rod, the upper cover can be rotated and moved via the adjusting screw. This facilitates moving the upper cover from or above the fixed cylinder, allowing for easy placement and removal of the cultivation bottle. Lowering the upper cover allows it to be installed above the fixed cylinder, and the cultivation bottle is secured by a rotating ring, improving its stability. This facilitates cultivation of the cultivation bottle and marine microalgae under both light and no light by placing them inside the fixed cylinder and the upper cover. Supplemental lighting is evenly arranged around the cultivation bottle on the inner wall of the fixed cylinder, and the servo motor, tray, and rotating ring rotate and shake the bottle, ensuring the marine microalgae receive sufficient irradiation and contact with carbon dioxide, facilitating photosynthesis. Adjusting the raising and lowering of the upper cover allows for easy removal of the cultivation bottle and facilitating the acquisition of marine microalgae, thus enhancing the practicality of the device. Attached Figure Description
[0015] Figure 1 This is a structural diagram of a marine microalgae cultivation device according to the present invention;
[0016] Figure 2 This is a front cross-sectional view of a marine microalgae cultivation device according to the present invention;
[0017] Figure 3 This invention relates to a device for cultivating marine microalgae. Figure 2 Enlarged view of point A in the middle;
[0018] Figure 4 This is a cross-sectional view of a partial structure of a marine microalgae cultivation device according to the present invention;
[0019] Figure 5 This is a structural diagram illustrating the adjustment state of a marine microalgae cultivation device according to the present invention.
[0020] Figure 6 This is a cross-sectional view of the top cover of a marine microalgae cultivation device according to the present invention;
[0021] In the diagram: 1. Base; 2. Fixing rod; 3. Crossbar; 4. Fixing cylinder; 5. Top cover; 6. Adjusting screw; 7. Insertion tube; 8. Gas supply tube; 9. Inner cavity; 10. Servo motor; 11. Tray; 12. Culture bottle; 13. Supplemental light; 14. Rotating ring; 15. Annular protrusion; 16. First rubber pad; 17. Second rubber pad. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] Please see Figures 1 to 6 This utility model provides a technical solution: a cultivation device for marine microalgae, comprising a base 1, a fixed cylinder 4, and an adjustment mechanism disposed on the top of the base 1. The adjustment mechanism includes a fixed rod 2, a crossbar 3, and a top cover 5. The top cover 5 is movably disposed below one end of the crossbar 3 via an adjusting screw 6. A rotating ring 14 is rotatably mounted on the inner wall of the top cover 5 via an annular protrusion 15. The fixed cylinder 4 is fixedly disposed at the center of the top of the base 1. A tray 11 is disposed on the top of the base 1 corresponding to the inner side of the fixed cylinder 4 via a servo motor 10. A culture bottle 12 is placed on top of the container, and the culture bottle 12 is located inside the fixing cylinder 4 and the top cover 5. The inner wall of the fixing cylinder 4 is uniformly and circularly equipped with supplementary lights 13. The supplementary lights 13, which are evenly arranged on the outside of the culture bottle 12, facilitate the illumination of the marine microalgae inside. Furthermore, the rotation of the tray 11 and the culture bottle 12 driven by the servo motor 10 allows the marine microalgae to fully contact with light and carbon dioxide, facilitating the cultivation of marine microalgae. By adjusting the top cover 5, the top cover 5 can be separated from the fixing cylinder 4, making it easy to remove the culture bottle 12 and obtain the cultivated marine microalgae, which is highly practical.
[0024] In this embodiment, the base 1 has an inner cavity 9. The servo motor 10 is fixedly installed at the center of the inner cavity 9. The tray 11 is fixedly installed at the top of the output shaft of the servo motor 10. The servo motor 10 facilitates the rotation and adjustment of the tray 11, which allows the culture bottle 12 to be rotated in the forward direction, shaking the marine microalgae and facilitating its full contact with carbon dioxide and light.
[0025] In this embodiment, the fixing rod 2 is fixedly installed on the top of one end of the base 1, one end of the crossbar 3 is rotatably fixed to the top of the fixing rod 2, the adjusting screw 6 is screwed to the inside of the other end of the crossbar 3, the adjusting screw 6 is rotatably fixed to the top of the upper cover 5, and a knob is fixedly provided at the top of the adjusting screw 6. An air supply pipe 8 and an insertion pipe 7 are fixedly installed on both sides of the top of the upper cover 5, respectively. The tops of the air supply pipe 8 and the insertion pipe 7 are slidably installed inside the crossbar 3. A valve is installed at the top of the air supply pipe 8, and a rubber stopper is installed at the top of the insertion pipe 7. The bottom ends of the air supply pipe 8 and the insertion pipe 7 are inserted into the inside of the culture bottle 12. The upper cover 5 can be raised and lowered by the knob and the adjusting screw 6, which facilitates the separation and locking operation between the upper cover 5 and the fixing cylinder 4. The upper cover 5 can be limited by the air supply pipe 8 and the insertion pipe 7, which also facilitates the addition of culture medium, marine microalgae and the introduction of carbon dioxide into the culture bottle 12, thus facilitating the cultivation of marine microalgae.
[0026] In this embodiment, the annular protrusion 15 is fixedly disposed on the inner wall of the upper cover 5, and the rotating ring 14 is rotatably mounted on the outer side of the annular protrusion 15. The bottom end of the rotating ring 14 is provided with a recessed portion, which can limit the rotation of the rotating ring 14 through the annular protrusion 15. The rotating ring 14 is fitted onto the outer side of the top of the culture flask 12. A first rubber pad 16 is fixedly disposed on the inner wall of the recessed portion, and the first rubber pad 16 is in close contact with the outer wall of the culture flask 12. The supplemental light 13 is disposed on the outer side of the culture flask 12, and the upper cover 5 is snapped onto the top of the fixing cylinder 4. A second rubber pad 17 is fixedly installed on the inner wall of the upper cover 5 between it and the fixed cylinder 4. When the upper cover 5 is lowered, it can drive the rotating ring 14 to squeeze the upper end of the culture bottle 12, thereby fixing the culture bottle 12. At the same time, the rotating ring 14 can also rotate through the annular protrusion 15, which facilitates the subsequent rotation and shaking of the culture bottle 12. The first rubber pad 16 can improve the friction and stability between the rotating ring 14 and the culture bottle 12. The second rubber pad 17 can seal the upper cover 5 and the fixed cylinder 4 to prevent bacteria and other contaminants from affecting the cultivation of marine microalgae.
[0027] When using this marine microalgae cultivation device, the top of the air supply pipe 8 is fixedly connected to the oxygen supply equipment. By rotating the adjusting screw 6 with a knob, the adjusting screw 6 moves inside the crossbar 3, causing the upper cover 5 to move upwards. The top of the upper cover 5 contacts the bottom of the crossbar 3. The crossbar 3 is rotated and adjusted at the top of the fixing rod 2, causing the upper cover 5 to move away from the fixing cylinder 4. The device and the culture bottle 12 are then sterilized. The sterilized culture bottle 12 is placed inside the fixing cylinder 4 on top of the corresponding tray 11. At this time, the culture bottle 12... Inside the evenly spaced supplementary lights 13, rotate the crossbar 3 and the upper cover 5 in the opposite direction to adjust the upper cover 5 and the crossbar 3 to the top of the fixed cylinder 4 and the culture bottle 12. Rotate the knob and the adjusting screw 6 in the opposite direction. Through the screwing action between the adjusting screw 6 and the crossbar 3, the upper cover 5 moves downward. The upper cover 5 also causes the gas supply tube 8 and the insertion tube 7 to slide inside the crossbar 3. The bottom end of the upper cover 5 is engaged with the top end of the fixed cylinder 4, and the second rubber gasket 17 seals the upper cover 5 and the fixed cylinder 4. The bottom ends of the gas supply tube 8 and the insertion tube 7 are sealed. The rotating ring 14 is inserted into the culture flask 12, and is fixed to the top of the culture flask 12 by the first rubber pad 16. Culture medium is added into the culture flask 12 through the insertion tube 7, followed by the addition and inoculation of marine microalgae. The air supply tube 8 is sealed with a valve, and the insertion tube 7 is sealed with a rubber stopper. The supplemental lighting 13 is activated as needed to irradiate the marine microalgae for 12 hours. During the irradiation, the servo motor 10 is activated, which drives the tray 11 and the culture flask 12 to rotate, while the rotating ring 14 rotates through the ring... The rotation of the protrusion 15 improves the stability of the culture bottle 12 and shakes the marine microalgae, allowing them to fully contact with carbon dioxide and light, thus facilitating their cultivation. After 12 hours, all supplemental lights 13 are turned off, allowing the marine microalgae to be cultivated in the dark. After cultivation, the upper cover 5 is raised and adjusted using the knob and adjusting screw 6, separating it from the fixing cylinder 4. The upper cover 5 is then removed using the fixing rod 2 and the crossbar 3, allowing the culture bottle 12 to be taken out and the marine microalgae to be obtained, thus improving the practicality of the device.
[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A device for culturing marine microalgae, comprising a base (1), a fixed cylinder (4) and an adjusting mechanism arranged on the top of the base (1), characterized in that, The adjustment mechanism includes a fixed rod (2), a crossbar (3) and a top cover (5). The top cover (5) is movably positioned below one end of the crossbar (3) via an adjustment screw (6) at its top. A rotating ring (14) is mounted on the inner wall of the top cover (5) by means of an annular protrusion (15). The fixed cylinder (4) is fixedly positioned at the top center of the base (1). A tray (11) is provided on the top of the base (1) corresponding to the inner side of the fixed cylinder (4) via a servo motor (10). A culture bottle (12) is placed on the top of the tray (11). The culture bottle (12) is positioned inside the fixed cylinder (4) and the top cover (5). A supplementary light (13) is uniformly arranged in a circle on the inner wall of the fixed cylinder (4).
2. The device for culturing marine microalgae according to claim 1, wherein: The base (1) has an inner cavity (9) inside, the servo motor (10) is fixedly installed at the center of the inner cavity (9), and the tray (11) is fixedly installed at the top of the output shaft of the servo motor (10).
3. The device for culturing marine microalgae according to claim 1, wherein: The fixing rod (2) is fixedly installed on the top of one end of the base (1), one end of the crossbar (3) is limited and rotatably installed on the top of the fixing rod (2), and the adjusting screw (6) is screwed into the inside of the other end of the crossbar (3).
4. The device for culturing marine microalgae according to claim 3, wherein: The adjusting screw (6) is limited to rotating and installed on the top of the upper cover (5). A knob is fixedly installed at the top of the adjusting screw (6). An air supply pipe (8) and an insertion pipe (7) are fixedly installed on both sides of the top of the upper cover (5).
5. The device for culturing marine microalgae according to claim 4, characterized in that: The top ends of the gas supply pipe (8) and the insertion pipe (7) are slidably installed inside the crossbar (3). A valve is installed at the top end of the gas supply pipe (8), and a rubber stopper is installed at the top end of the insertion pipe (7). The bottom ends of the gas supply pipe (8) and the insertion pipe (7) are inserted into the culture bottle (12).
6. The device for culturing marine microalgae according to claim 1, wherein: The annular protrusion (15) is fixedly installed on the inner wall of the upper cover (5), and the rotating ring (14) is rotatably installed on the outer side of the annular protrusion (15). The bottom end of the rotating ring (14) is provided with a recess.
7. The device for cultivating marine microalgae according to claim 6, characterized in that: The rotating ring (14) is fitted on the outer side of the top of the culture bottle (12), and a first rubber pad (16) is fixedly provided on the inner wall of the recess, and the first rubber pad (16) is in contact with the outer wall of the culture bottle (12).
8. The device for cultivating marine microalgae according to claim 7, characterized in that: The supplemental light (13) is set on the outside of the culture bottle (12), the top cover (5) is snapped onto the top of the fixing cylinder (4), and a second rubber pad (17) is fixedly set between the inner wall of the top cover (5) and the fixing cylinder (4).
Citation Information
Patent Citations
Culture device for marine microalgae
CN213506916U