Photocooperation simulation device for biological experiment
By designing a photosynthesis simulation device with an easy-to-install and adjust LED light source, magnetic stirrer, and light-shielding cardboard box, the problems of uncontrollable lighting and complex operation of traditional devices have been solved. This enables accurate simulation and data recording of photosynthesis experiments, improving the convenience and accessibility of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HANSHAN NORMAL UNIV
- Filing Date
- 2026-03-16
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional photosynthesis experimental devices suffer from problems such as uncontrollable light intensity and spectrum, complex operation, high cost, and large size, making them difficult to popularize in conventional teaching laboratories or small scientific research settings.
A photosynthesis simulation device was designed, comprising an LED light source, a locking component, a magnetic stirrer, a light-shielding experimental box, and sensors. The locking component facilitates the installation and adjustment of the LED light source, the magnetic stirrer promotes uniform distribution of the culture medium, the light-shielding box reduces external light interference, and the sensors detect experimental data, enabling precise control and data recording of light conditions.
It achieves precise control of light intensity and light quality, ensures uniform light exposure for plants, improves the accuracy of experimental data and the convenience and accessibility of the device, and reduces cost and size.
Smart Images
Figure CN121938262A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of biological experimental technology, specifically a photosynthesis simulation device for biological experiments. Background Technology
[0002] In biological teaching and research experiments, exploring the mechanism of photosynthesis is one of the core contents, and experimental devices that simulate photosynthesis are key tools for carrying out related research. At this time, a photosynthesis simulation device for biological experiments is needed.
[0003] Traditional photosynthesis experiments often employ simple methods such as natural light irradiation and artificial beaker cultivation of plants. These methods suffer from problems such as uncontrollable light intensity and spectrum, the need for manual reading and recording of experimental data, and large errors. While some large-scale photosynthesis simulation devices used in laboratories are fully functional, they are bulky, expensive, and complex to operate, making them difficult to popularize in regular teaching laboratories or small-scale research settings, thus reducing the overall ease of use of the devices.
[0004] Based on this, a photosynthesis simulation device for biological experiments is now provided, which can eliminate the drawbacks of existing devices. Summary of the Invention
[0005] The purpose of this invention is to provide a photosynthesis simulation device for biological experiments, in order to solve the problems in the prior art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: A photosynthesis simulation device for biological experiments includes a base, a support rod fixedly mounted on the upper surface of the base, a sliding sleeve slidably connected to the outer wall of the support rod, a support plate fixedly connected to the surface of the sliding sleeve through a connecting frame, a plurality of connecting sleeves sleeved on the surface of the support plate, an LED light source fixedly mounted on the surface of each of the plurality of connecting sleeves, a laptop computer mounted on one side of the base, and a photosynthesis reaction bottle mounted below the support plate. A locking component is mounted on the surface of the connecting sleeve and is used for the assembly and disassembly of the LED light source; The locking assembly includes a locking plate fixedly installed on the surface of the connecting sleeve. Slide rods are symmetrically installed on the inner wall of the locking plate. A slide plate is slidably connected to the outer wall of every two slide rods. A return spring is sleeved on the outside of the slide rod. The return spring abuts against the slide plate and the locking plate. A pull plate is fixedly connected to one side of the slide plate through a side plate. A locking rod is symmetrically installed on the other side of the slide plate. Locking grooves for the locking rod to move are opened on the contact surface between the locking plate and the connecting sleeve and on the surface of the support plate.
[0007] Based on the above technical solutions, the present invention also provides the following optional technical solutions: In one alternative: a magnetic stirrer is located below the photosynthetic reaction flask, and the photosynthetic reaction flask is placed on the upper surface of the magnetic stirrer.
[0008] In one alternative: a fixing block is fixedly connected to the surface of the sliding sleeve, a fixing rod is slidably inserted into the fixing block, one end of the fixing rod extends to the outside of the fixing block and is fixedly connected to a pull ring, an abutment plate is fixedly connected to the outer wall of the fixing rod, an abutment spring is sleeved on the outside of the fixing rod, the abutment spring abuts between the abutment plate and the fixing block, and fixing grooves for the fixing rod to move are opened on the contact surface between the fixing block and the sliding sleeve and the surface of the support rod.
[0009] In one alternative: the support plate is covered with a light-shielding test carton, which is supported by a support rod, and the surface of the light-shielding test carton is hinged with a closing door.
[0010] In one alternative, the photosynthetic reaction vessel is made of transparent glass.
[0011] In one alternative: the LED light source is equipped with a spectral control unit, and the spectral control unit supports independent switching and power adjustment of red light, blue light, white light and infrared light.
[0012] In one alternative: a pH sensor and a dissolved oxygen sensor are fixedly installed on the inner wall of the photosynthetic reaction bottle.
[0013] In one alternative, the support plate is semi-circular in shape.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, through the setting of locking components, facilitates the fixed installation of LED light sources by staff, and also allows for easy adjustment of the position and number of LED light sources. This effectively simulates sunlight lighting conditions, effectively controls light intensity and quality, meets the experimental requirements of different plant photosynthesis for lighting conditions, and ensures uniform light exposure for plants through the multi-directional arrangement of LED light sources. Furthermore, the overall device is small in size and low in cost, further improving the overall ease of use and widespread applicability of the device. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the light-shielding experimental cardboard box after it has been removed in this invention; Figure 3 for Figure 2 Enlarged structural diagram of region A in the middle; Figure 4 for Figure 2 A magnified structural diagram of region B in the middle; Figure 5 This is a schematic diagram of the structure of the pH sensor and dissolved oxygen sensor in this invention.
[0016] Figure label annotations: 1. Base; 2. Support rod; 3. Magnetic stirrer; 4. Photosynthesis reaction flask; 5. Support plate; 6. Light-shielding experimental carton; 7. Laptop computer; 8. LED light source; 9. Connecting sleeve; 10. Locking plate; 11. Slide rod; 12. Slide plate; 13. Return spring; 14. Side plate; 15. Locking rod; 16. Slide sleeve; 17. Connecting frame; 18. Fixing block; 19. Fixing rod; 20. Contact plate; 21. Contact spring; 22. pH sensor; 23. Dissolved oxygen sensor; 24. Closed chamber door. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0018] In one embodiment, such as Figures 1-5 As shown, a photosynthesis simulation device for biological experiments includes a base 1, a support rod 2 fixedly installed on the upper surface of the base 1, a sliding sleeve 16 slidably connected to the outer wall of the support rod 2, a support plate 5 fixedly connected to the surface of the sliding sleeve 16 through a connecting frame 17, a plurality of connecting sleeves 9 sleeved on the surface of the support plate 5, an LED light source 8 fixedly installed on the surface of each of the plurality of connecting sleeves 9, a laptop computer 7 on one side of the base 1, and a photosynthesis reaction bottle 4 below the support plate 5. A locking component is installed on the surface of the connecting sleeve 9 and is used for disassembling and assembling the LED light source 8; The locking assembly includes a locking plate 10 fixedly mounted on the surface of the connecting sleeve 9. Slide rods 11 are symmetrically mounted on the inner wall of the locking plate 10. A slide plate 12 is slidably connected to the outer wall of every two slide rods 11. A return spring 13 is sleeved on the outside of the slide rods 11. The return spring 13 abuts against the slide plate 12 and the locking plate 10. A pull plate is fixedly connected to one side of the slide plate 12 through a side plate 14. A locking rod 15 is symmetrically mounted on the other side of the slide plate 12. Locking grooves for the locking rod 15 to move are opened on the contact surface between the locking plate 10 and the connecting sleeve 9 and on the surface of the support plate 5.
[0019] In this embodiment, when a photosynthesis simulation experiment is needed, simply place the plant inside the photosynthesis reaction bottle 4, then place the base 1 and support rod 2 in a suitable position (i.e., the support plate 5 is located above the photosynthesis reaction bottle 4), and then pull the pull plate. At this time, the pull plate will drive the side plate 14 to move synchronously, and the side plate 14 will then drive the slide plate 12 to move synchronously on the outer wall of the slide rod 11. During the movement of the slide plate 12, it will squeeze the return spring 13, and the slide plate 12 will also drive the locking rod 15 to move synchronously. At this time, the connecting sleeve 9 is then fitted onto the outer wall of the support plate 5, and the connecting sleeve 9 will drive the LED light source 8 to move synchronously. When the LED light source 8 moves to a suitable position, then... Release the pull plate, and the reset spring 13 will reset, causing the slide plate 12 and locking rod 15 to move synchronously. When the locking rod 15 is inserted into the locking groove on the surface of the support plate 5, the connecting sleeve 9 can be fixed. At this time, the LED light source 8 can be fixedly installed, so that the lighting conditions of sunlight can be simulated by multiple LED light sources 8, and the uniformity of light on plants can be ensured. This can effectively conduct light simulation experiments on plants. The experimental data will be transmitted to the laptop 7 for staff to record, view and process, which effectively improves the overall ease of use of the device. Moreover, the device is small in size and low in cost, further improving the overall popularity of the device. In one embodiment, such as Figure 1 and Figure 2 As shown, a magnetic stirrer 3 is installed below the photosynthesis reaction bottle 4. The photosynthesis reaction bottle 4 is placed on the upper surface of the magnetic stirrer 3. The magnetic stirrer 3 can make the nutrients and carbon dioxide (or bicarbonate) in the culture medium in the photosynthesis reaction bottle 4 evenly distributed. At the same time, it can promote the full contact between the gas released by the plant and the culture medium, ensure the uniformity of material exchange in the experimental system, and improve the accuracy of experimental data.
[0020] In one embodiment, such as Figure 2 and Figure 4As shown, a fixing block 18 is fixedly connected to the surface of the sliding sleeve 16. A fixing rod 19 is slidably inserted into the fixing block 18. One end of the fixing rod 19 extends to the outside of the fixing block 18 and is fixedly connected to a pull ring. An abutment plate 20 is fixedly connected to the outer wall of the fixing rod 19. An abutment spring 21 is sleeved on the outside of the fixing rod 19. The abutment spring 21 abuts against the abutment plate 20 and the fixing block 18. Fixing grooves for the fixing rod 19 to move are opened on the contact surface between the fixing block 18 and the sliding sleeve 16, as well as on the surface of the support rod 2. When it is necessary to adjust the height of the support plate 5, simply pull the pull ring first. At this time, the pull ring will drive the fixing rod 19 and the abutment plate 20 to move together. The movement is carried out step by step. During the movement of the contact plate 20, the contact spring 21 is compressed. When the fixed rod 19 is disengaged from the fixed groove on the surface of the support rod 2, the sliding sleeve 16 moves on the outer wall of the support rod 2. At this time, the sliding sleeve 16 will drive the connecting frame 17 and the support plate 5 to move synchronously. When the support plate 5 moves to the appropriate height position, the pull ring is released. At this time, the contact spring 21 returns to its original position, driving the contact plate 20 and the fixed rod 19 to move synchronously. When the fixed rod 19 is inserted into the fixed groove on the surface of the support rod 2, the height position of the support plate 5 can be fixed, which makes it convenient for the staff to adjust the position of the support plate 5.
[0021] In one embodiment, such as Figure 1 and Figure 2 As shown, the support plate 5 is covered with a light-shielding experimental cardboard box 6, which is supported by a support rod 2. The surface of the light-shielding experimental cardboard box 6 is hinged with a closed door 24. By setting up the light-shielding experimental cardboard box 6 and the closed door 24, a sealed experimental environment free from external light interference can be effectively created, thereby avoiding interference from natural light or ambient light on the photosynthesis simulation experiment. At the same time, it can reduce the temperature loss inside the light-shielding experimental cardboard box 6 to a certain extent, helping to maintain the stability of the experimental environment temperature. Moreover, it is inexpensive and ordinary cardboard boxes can be used. The light-shielding experimental cardboard box 6 can be effectively supported by the support rod 2.
[0022] In one embodiment, such as Figure 1 , Figure 2 and Figure 5 As shown, the photosynthesis reaction bottle 4 is made of transparent glass. The transparent glass material of the photosynthesis reaction bottle 4 can ensure the transmission of light from the light source, and at the same time, it can facilitate the staff to observe the plant growth and the intuitive changes in the experimental process.
[0023] In one embodiment, such as Figure 1 and Figure 2As shown, the LED light source 8 is equipped with a spectral control unit, which supports independent switching and power adjustment of red, blue, white and infrared light. By setting different colors of light, the LED light source 8 can more accurately simulate the dynamic lighting conditions of sunlight in nature. At the same time, it allows staff to easily adjust and change the color of the light according to actual experimental needs, and can effectively adjust the light power, further improving the overall experimental effect of the device on plants.
[0024] In one embodiment, such as Figure 5 As shown, a pH sensor 22 and a dissolved oxygen sensor 23 are fixedly installed on the inner wall of the photosynthesis reaction bottle 4. Through the setting of the pH sensor 22 and the dissolved oxygen sensor 23, the pH value and dissolved oxygen value in the photosynthesis reaction bottle 4 can be effectively detected and processed. The detected data is then transmitted to the laptop 7, which makes it convenient for staff to view the data and further improves the accuracy of the plant photosynthesis simulation experiment data (the pH sensor 22 is model GNST-PH225, and the dissolved oxygen sensor 23 is model GNST-DO217).
[0025] In one embodiment, such as Figure 1 and Figure 2 As shown, the support plate 5 is semi-circular in shape. By setting the semi-circular support plate 5, the LED light source 8 can be set in a ring array after installation. This allows the LED light source 8 to be evenly arranged around and above the photosynthesis reaction bottle 4, achieving light coverage without dead angles. This ensures that the plants inside the photosynthesis reaction bottle 4 receive uniform light, simulating the three-dimensional irradiation effect of sunlight in a natural environment. At the same time, the semi-circular arc design can fit the shape of the photosynthesis reaction bottle 4 and maximize the use of the internal space of the light-shielding experimental carton 6, making the distance between the light source and the plant more reasonable, reducing light loss, and improving light energy utilization.
[0026] The above embodiment discloses a photosynthesis simulation device for biological experiments. When conducting a photosynthesis simulation experiment on plants, the plant is first placed inside the photosynthesis reaction bottle 4. Then, the base 1 and support rod 2 are placed in a suitable position (i.e., the support plate 5 is located above the photosynthesis reaction bottle 4). Pulling the pull plate causes the side plate 14 to move synchronously, which in turn causes the sliding plate 12 to move synchronously against the outer wall of the sliding rod 11. During the movement of the sliding plate 12, the return spring 13 is compressed, and the sliding plate 12 also causes the locking rod 15 to move synchronously. At this point, the connecting sleeve 9 is fitted onto the outer wall of the support plate 5. The connecting sleeve 9 causes the LED light source 8 to move synchronously. When the LED light source 8 reaches a suitable position, the pull plate is released, and the return spring 13 resets, causing the sliding plate 12 and locking rod 15 to move synchronously. When the locking rod 15 is inserted into the locking groove on the surface of the support plate 5, the connecting sleeve 9 is fixed. At this point, the LED light source 8 can be used for photosynthesis simulation. The LED light source 8 is fixedly installed, allowing multiple LED light sources 8 to simulate sunlight conditions and ensure uniform light exposure for the plants. This enables effective light simulation experiments, and the experimental data is transmitted to a laptop 7 for recording and processing. After the LED light source 8 is installed, the light-shielding experimental cardboard box 6 is placed over the support plate 5 to effectively block natural and ambient light, improving experimental accuracy. During the operation of the LED light source 8, the magnetic stirrer 3 also starts running simultaneously. The magnetic stirrer 3 ensures uniform distribution of nutrients and carbon dioxide (or bicarbonate) in the culture medium of the photosynthetic reaction bottle 4, and promotes full contact between the gases released by the plants and the culture medium, ensuring uniform material exchange within the experimental system. This effectively improves the overall ease of use of the device, which is also small in size and low in cost, further enhancing its widespread applicability.
[0027] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A photosynthesis simulation device for biological experiments, comprising a base (1), characterized in that, A support rod (2) is fixedly installed on the upper surface of the base (1). A sliding sleeve (16) is slidably connected to the outer wall of the support rod (2). A support plate (5) is fixedly connected to the surface of the sliding sleeve (16) through a connecting frame (17). Multiple connecting sleeves (9) are fitted on the surface of the support plate (5). LED light sources (8) are fixedly installed on the surface of each of the multiple connecting sleeves (9). A laptop computer (7) is provided on one side of the base (1). A photosynthetic reaction bottle (4) is provided below the support plate (5). A locking component is installed on the surface of the connecting sleeve (9) and is used for disassembling and assembling the LED light source (8); The locking assembly includes a locking plate (10) fixedly installed on the surface of the connecting sleeve (9). Slide rods (11) are symmetrically installed on the inner wall of the locking plate (10). A sliding plate (12) is slidably connected to the outer wall of each pair of slide rods (11). A return spring (13) is sleeved on the outside of the slide rod (11). The return spring (13) abuts against the sliding plate (12) and the locking plate (10). A pull plate is fixedly connected to one side of the sliding plate (12) through a side plate (14). A locking rod (15) is symmetrically installed on the other side of the sliding plate (12). Locking grooves for the locking rod (15) to move are opened on the contact surface between the locking plate (10) and the connecting sleeve (9) and the surface of the support plate (5).
2. The photosynthesis simulation device for biological experiments according to claim 1, characterized in that, A magnetic stirrer (3) is provided below the photosynthesis reaction bottle (4), and the photosynthesis reaction bottle (4) is placed on the upper surface of the magnetic stirrer (3).
3. The photosynthesis simulation device for biological experiments according to claim 1, characterized in that, A fixing block (18) is fixedly connected to the surface of the sliding sleeve (16). A fixing rod (19) is slidably inserted into the fixing block (18). One end of the fixing rod (19) extends to the outside of the fixing block (18) and is fixedly connected to a pull ring. An abutment plate (20) is fixedly connected to the outer wall of the fixing rod (19). An abutment spring (21) is sleeved on the outside of the fixing rod (19). The abutment spring (21) abuts between the abutment plate (20) and the fixing block (18). Fixing grooves for the fixing rod (19) to move are opened on the contact surface between the fixing block (18) and the sliding sleeve (16) and on the surface of the support rod (2).
4. A photosynthesis simulation device for biological experiments according to claim 1, characterized in that, The support plate (5) is covered with a light-shielding experimental carton (6), which is supported by a support rod (2). The surface of the light-shielding experimental carton (6) is hinged with a closed door (24).
5. A photosynthesis simulation device for biological experiments according to claim 1, characterized in that, The photosynthetic reaction bottle (4) is made of transparent glass.
6. A photosynthesis simulation device for biological experiments according to claim 1, characterized in that, The LED light source (8) is equipped with a spectral control unit, which supports independent switching and power adjustment of red light, blue light, white light and infrared light.
7. A photosynthesis simulation device for biological experiments according to claim 1, characterized in that, A pH sensor (22) and a dissolved oxygen sensor (23) are fixedly installed on the inner wall of the photosynthesis reaction bottle (4).
8. A photosynthesis simulation device for biological experiments according to claim 1, characterized in that, The support plate (5) is semi-circular in shape.