A salt and alkali tolerance experiment device for early crop growth

Abstract

This invention relates to the field of seedling technology, specifically to a salt-alkali tolerance experimental device for crops in the early stages of growth. It solves the problems of requiring workers to manually move to each location where seedlings are planted, and the need to manually clean the containers used for planting crops when seedling cultivation is conducted in different soil types. The device includes a crop breeding experimental box. The highly convenient experimental mechanism of this invention allows multiple crop planting tubes to be pushed one by one into the arc-shaped groove located at the front of the experimental platform. Workers can simply sit around the platform to conduct experiments on the crops planted in different planting tubes. The breeding trough cleaning mechanism automatically cleans away any residual soil. This lifting technology improves both worker efficiency and the efficiency and convenience of the breeding process.

Description

Technical Field

[0001] This invention relates to the field of seedling technology, specifically to a salt and alkali tolerance experimental device for crops in the early stages of growth. Background Technology

[0002] Crops, short for agricultural crops, refer to the general term for plants whose fruits, seeds, leaves, modified roots, stems, and flowers are cultivated or harvested on a large scale by humans for profit or food.

[0003] To cultivate superior crop products, seedlings, commonly known as crop seedlings, are typically planted in crop breeding test chambers during their early growth stages. Intelligent environmental control equipment and nutrient solution circulation systems precisely control the temperature, humidity, light, carbon dioxide, and rhizosphere nutrients around the seedlings. This places the seedlings in various environments, and artificial interventions are made based on their growth status to guide their growth and enhance specific characteristics. For example, simulating saline-alkali soil conditions allows for the selection of superior germplasm resources suitable for saline-alkali soils, thereby improving the seedlings' salt and alkali resistance. Such crop breeding test chambers that can simulate saline-alkali environments can be considered a salt and alkali tolerance experimental device for the early stages of crop growth.

[0004] However, when using this salt-alkali tolerance experimental equipment in the early stages of crop growth, staff need to move to each location where seedlings are planted, which is cumbersome and affects work efficiency. Furthermore, when planting crops in other types of soil, the containers used for planting need to be manually cleaned to remove residual soil from the inner walls, further increasing the complexity of using the equipment. While the seedlings inside the breeding chamber are kept at the same temperature, saline-alkali land is distributed in different areas with significant temperature differences. This means the breeding chamber can only simulate the temperature of a specific saline-alkali area at a time, limiting its effectiveness. When testing the growth of crops planted in soil with a certain salinity concentration under different temperature conditions, multiple trials are required, which is time-consuming. Therefore, this method does not meet current needs. To address this, we propose a salt-alkali tolerance experimental equipment for the early stages of crop growth. Summary of the Invention

[0005] The purpose of this invention is to provide a salt-alkali tolerance experimental device for crops in the early stages of growth. This addresses the problems mentioned in the background art, such as the need for workers to manually move to each location where seedlings are planted, a cumbersome process that affects work efficiency; the need to manually clean the containers used for planting crops to remove residual soil from the inner walls when planting crops in other types of soil, further increasing the complexity of using the device; and the limitation that the seedlings inside the breeding chamber are kept at the same temperature, while saline-alkali land is distributed in different areas with significant temperature differences. This means the breeding chamber can only simulate the temperature of a specific saline-alkali area at a time, resulting in high limitations. Furthermore, when testing the growth of crops planted in soil with a certain salinity concentration under different temperature conditions, multiple trials are required, leading to a lengthy testing process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a salt and alkali tolerance experimental device for crops in the early stage of growth, comprising a crop breeding experimental box, wherein a highly portable experimental mechanism is installed inside the crop breeding experimental box, the highly portable experimental mechanism comprising a circular platform, multiple storage slots, crop planting tubes in the same number as the storage slots, an experimental platform, an arc-shaped groove, and a push-along mechanism, wherein the arc-shaped groove is located on the side of the experimental platform facing the circular platform;

[0007] Multiple storage slots are arranged in a ring on the outer side of the upper surface of the circular platform. Multiple crop planting tubes are located inside the multiple storage slots. Each crop planting tube contains saline-alkali soil. The push mechanism can push the crop planting tubes that have moved to the front of the experimental platform into the arc-shaped slots while rotating around the center point of the lower end of the circular platform.

[0008] Each of the crop planting pipes has a breeding trough cleaning mechanism fixedly installed on its lower end face. The breeding trough cleaning mechanism includes a cylindrical metal shell, a metal pipe, multiple annular cleaning sponges, two small spray heads, two concave water source transmission pipes, a cleaning water source, a cylindrical trough, and a synchronous transmission mechanism. The cylindrical trough is located in the middle of the upper end face of the cylindrical metal shell. The cleaning water source is located inside the cylindrical trough. The metal pipe is located in the middle of the cleaning water source. The two small spray heads are fixedly installed at both ends on the upper side of the outer surface of the metal pipe. The two concave water source transmission pipes are connected to the two small spray heads respectively, and the small spray heads are connected to the cleaning water source located on the lower side of the cylindrical trough through the concave water source transmission pipes.

[0009] Multiple ring-shaped cleaning sponges are fixedly sleeved on the outer surface of the metal tube from top to bottom, and synchronous transmission enables the metal tube to move up and down during rotation.

[0010] A zoned temperature adjustment mechanism is fixedly installed at the middle position of the upper end face of the high-portability experimental mechanism. The zoned temperature adjustment mechanism includes a circular column, a second metal ring, multiple synchronous connection mechanisms (the same number as crop planting tubes), arc-shaped plates, a lifting platform, a transparent sealing cover, and a temperature control mechanism. The second metal ring is sleeved on the upper side of the outer surface of the circular column through roller bearings. Multiple arc-shaped plates are respectively located above multiple crop planting tubes, and the arc-shaped plates are connected to the second metal ring through synchronous connection mechanisms.

[0011] Multiple lifting platforms are fixed to the lower end faces of multiple arc-shaped plates, multiple transparent sealing covers are fixed to the lower end faces of multiple lifting platforms, and multiple temperature control mechanisms are fixed inside the multiple transparent sealing covers. The transparent sealing covers are fitted onto the upper end faces of the corresponding crop planting tubes. When the crop planting tubes move, the corresponding arc-shaped plates, lifting platforms, transparent sealing covers, and temperature control mechanisms will move together through the synchronous connection mechanism.

[0012] Preferably, the push-one mechanism includes a switching motor, the output shaft of which is connected to a switching shaft via a coupling, and the upper end face of the switching shaft is connected to the center point of the lower end face of the circular platform.

[0013] Preferably, a circular metal block is provided behind the switching motor. The circular metal block is circular, and a support rod is fixedly provided at the middle position of the lower end face of the circular metal block. The lower end face of the support rod is fixed to the lower inner wall of the crop breeding experimental box.

[0014] Preferably, one side of the crop planting tube is provided with a spring groove located inside the circular platform. The spring groove is provided with a first metal ring. A reset rod is connected to the axis of the first metal ring. A spring is sleeved on one side of the outer surface of the reset rod. The two ends of the spring are respectively connected to the inner wall of the first metal ring and the spring groove. The side of the reset rod facing the nearest crop planting tube is fixed to the crop planting tube.

[0015] Preferably, a guide rod is provided above the reset rod and fixed to the outer surface of the crop planting tube, and the guide rod is movably inserted into the interior of the circular platform.

[0016] Preferably, a pushing metal ring is fixedly sleeved on the lower side of the outer surface of the crop planting tube, and the front end face of the pushing metal ring located on the far right is in contact with the rear end face of the circular metal block.

[0017] Preferably, a semi-circular positioning groove is provided on one side of the outer surface of the pushing metal ring, and a fixing threaded rod is provided behind the semi-circular positioning groove closest to the arc groove, which is connected to the experimental table by a threaded structure. A locking rod is fixedly provided at the middle position of the front end face of the fixing threaded rod, and a positioning spring is sleeved on one side of the outer surface of the locking rod. A positioning metal ball is connected to the front end face of the positioning spring, and a through-hole is provided at the middle position of the front end face of the positioning metal ball, and the positioning metal ball is movably sleeved on the outer surface of the locking rod through the through-hole.

[0018] The front end of the positioning metal ball is inserted into the interior of the semi-circular positioning groove closest to the arc groove, and a slot is provided on one side of the inner wall of the semi-circular positioning groove.

[0019] Preferably, the cylindrical metal shell is installed on the lower side of the outer surface of the crop planting tube by a threaded structure, and the inner wall diameter of the bottom end of the crop planting tube is smaller than the inner wall diameter of the middle position and the top end of the crop planting tube.

[0020] A sealing plate is fixedly provided on the upper end face of the metal tube, and the outer surface of the sealing plate is in contact with the inner wall of the bottom end of the crop planting tube.

[0021] Preferably, the synchronous transmission mechanism includes a stepper motor, the output shaft of which is connected to a square rotating shaft via a coupling, and a threaded lifting rod connected to a cylindrical metal shell via a threaded structure on the outer side of the square rotating shaft. A square slot is provided at the middle position of the lower end face of the threaded lifting rod, the square rotating shaft is inserted into the square slot, and the upper end face of the threaded lifting rod is fixed to the metal tube.

[0022] The square rotating shaft has a square cross-sectional shape, and its outer surface fits against the inner wall of the square slot. The square rotating shaft and the square slot are slidably connected.

[0023] Preferably, the synchronous connection mechanism includes a synchronous ring, a connecting rod is fixedly provided on one side of the upper end face of the synchronous ring, the upper end face of the connecting rod is fixed to an arc plate located above it, a square guide rod is fixedly provided on one side of the outer surface of the arc plate, and the square guide rod is movably inserted into the interior of the second metal ring;

[0024] The zoned temperature adjustment mechanism also includes multiple temperature sensors, the same number as the transparent sealing cover. The multiple temperature sensors are respectively fixed inside the multiple transparent sealing covers. A small circulating fan is fixed to the outer surface of the transparent sealing cover on one side of each temperature sensor. A CNC display screen is fixed to the outer surface of the circular column between the multiple small circulating fans. The CNC display screen is electrically connected to all the lifting platforms, temperature control mechanisms, small circulating fans and temperature sensors.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. This invention features a crop planting tube inside each storage slot on the outer surface of a circular platform. When staff enter the crop breeding experimental chamber and need to conduct experiments on the crops planted inside the planting tubes one by one, a pusher mechanism can push multiple planting tubes into the arc-shaped slots at the front of the experimental platform. Staff can then sit around the platform to conduct experiments on the crops planted in different planting tubes one by one. This technical solution improves the convenience of the equipment, eliminating the need for staff to move around to conduct experiments on the crops planted in different planting tubes. This increases the efficiency of staff work and makes their work easier.

[0027] 2. This invention enables the automatic cleaning of soil residue on the inner wall of the crop planting tube when different soils are used to plant crops inside the tube. This improves the efficiency and convenience of the breeding process. The automated cleaning process reduces manual operation, saves time and labor, and ensures the cleanliness of each crop planting tube, providing a clean and consistent environment for the next round of crop planting. In addition, this automated cleaning function can reduce human error and omissions, and improve the consistency and accuracy of experiments.

[0028] 3. This invention utilizes a zoned temperature adjustment mechanism to independently adjust the temperature inside multiple crop planting tubes. This mechanism simultaneously simulates the actual temperature conditions of various saline-alkali land regions, providing crop breeding experiments with conditions closer to the natural environment. Furthermore, zoned temperature control allows for simultaneous experiments under different temperature conditions within the same experimental chamber, eliminating the need for repeated experiments. This not only saves time and resources but also improves experimental efficiency. Additionally, by independently controlling the temperature inside each crop planting tube, experimental errors caused by environmental differences are reduced. This temperature adjustment helps obtain more reliable and repeatable experimental results, providing more accurate data support for crop breeding research. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a front view of the entire invention;

[0031] Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle;

[0032] Figure 4 For the present invention Figure 3 Enlarged view of the structure at point B;

[0033] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point D;

[0034] Figure 6 For the present invention Figure 3 Enlarged view of the structure at point C;

[0035] Figure 7 For the present invention Figure 3 Enlarged view of the structure at point E in the middle;

[0036] Figure 8 For the present invention Figure 7 Enlarged view of the structure at point F.

[0037] In the diagram: 1. Crop breeding experimental box; 2. Breeding trough cleaning mechanism; 201. Cylindrical metal shell; 202. Stepper motor; 203. Square rotating shaft; 204. Threaded lifting rod; 205. Square slot; 206. Metal pipe; 207. Annular cleaning sponge; 208. Small spray head; 209. Concave water source transmission pipe; 210. Cleaning water; 211. Cylindrical trough; 212. Sealing plate; 3. Replacement motor; 4. Replacement rotating shaft; 5. Circular platform; 6. Storage trough; 7. Crop planting pipe; 8. Saline-alkali soil; 9. Guide rod; 10. Spring groove; 11. Reset rod; 2. First metal ring; 13. Spring; 14. Circular metal block; 15. Pushing metal ring; 16. Experimental table; 17. Arc groove; 18. Threaded rod for fixing; 19. Clamping rod; 20. Positioning metal ball; 21. Through port; 22. Slot; 23. Positioning spring; 24. Semi-circular positioning groove; Circular column; 26. CNC display screen; 27. Second metal ring; 28. Arc plate; 29. ​​Square guide rod; 30. Lifting platform; 31. Transparent sealing cover; 32. Temperature control mechanism; 33. Small circulating fan; 34. Synchronization ring; 35. Connecting fixing rod; 36. Temperature sensor. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] Please see Figures 1 to 8An embodiment of the present invention provides: a salt and alkali tolerance experimental device for crops in the early stage of growth, including a crop breeding experimental box 1. The crop breeding experimental box 1 is equipped with a highly portable experimental mechanism. The highly portable experimental mechanism includes a circular platform 5, multiple storage slots 6, crop planting tubes 7 in the same number as the storage slots 6, an experimental platform 16, an arc-shaped groove 17, and a push-along mechanism. The arc-shaped groove 17 is located on the side of the experimental platform 16 facing the circular platform 5.

[0040] Multiple storage slots 6 are arranged in a ring on the outer side of the upper end face of the circular platform 5. Multiple crop planting tubes 7 are located inside the multiple storage slots 6. Each crop planting tube 7 contains saline-alkali soil 8. The push mechanism can push the crop planting tube 7 that has moved to the front of the experimental platform 16 into the arc-shaped slot 17 while rotating around the center point of the lower end face of the circular platform 5.

[0041] The push-by-push mechanism includes a switching motor 3. The output shaft of the switching motor 3 is connected to a switching shaft 4 via a coupling. The upper end face of the switching shaft 4 is connected to the center point of the lower end face of the circular platform 5. When it is necessary to cultivate crops with strong salt and alkali tolerance, the crops are planted inside the saline-alkali soil 8, and the temperature and humidity around the saline-alkali soil are simulated by the crop breeding experimental box 1. When it is necessary to conduct experimental operations on the crops planted inside the crop planting tubes 7 one by one, the switching motor 3 is started. The switching motor 3 can drive the circular platform 5 connected to it via the switching shaft 4 to rotate. When the circular platform 5 rotates, the crop planting tubes 7 inside the storage groove 6 located on the upper end face of the circular platform 5 will revolve around the switching shaft 4.

[0042] A circular metal block 14 is located behind the switching motor 3. The circular metal block 14 is circular, and a support rod is fixedly installed at the middle position of the lower end face of the circular metal block 14. The lower end face of the support rod is fixed to the lower inner wall of the crop breeding experimental box 1. A pushing metal ring 15 is fixedly fitted on the lower side of the outer surface of the crop planting tube 7. The front end face of the pushing metal ring 15 located on the far right is in contact with the rear end face of the circular metal block 14. As the crop planting tube 7 revolves, the pushing metal ring 15 fixedly fitted on the lower side of the outer surface of the crop planting tube 7 will contact the outer surface of the circular metal block 14 and move towards the experimental platform 16 under the pushing of the circular outer surface of the circular metal block 14. When the crop planting tube 7 moves to the front of the experimental platform 16, The crop planting tube 7 will be completely inserted into the arc-shaped groove 17 located at the front end of the experimental platform 16. Once the crop planting tube 7 is completely inserted into the arc-shaped groove 17, the switching motor 3 is turned off, and the movement of the crop planting tube 7 is stopped. Through the above technical solution, multiple crop planting tubes 7 can be pushed into the arc-shaped groove 17 located at the front end of the experimental platform 16 one by one. The staff only needs to sit around the experimental platform 16 to conduct experiments on the crops planted in different crop planting tubes 7 one by one. This structure improves the convenience of the equipment, so that the staff no longer need to move to conduct experiments on the crops planted in different crop planting tubes 7. This improves the work efficiency of the staff and makes their work easier.

[0043] A spring groove 10 is located inside a circular platform 5 on one side of the crop planting tube 7. A first metal ring 12 is located inside the spring groove 10. A reset rod 11 is connected to the axis of the first metal ring 12. A spring 13 is fitted onto one side of the outer surface of the reset rod 11. The two ends of the spring 13 are connected to the inner wall of the first metal ring 12 and the spring groove 10, respectively. The side of the reset rod 11 facing the nearest crop planting tube 7 is fixed to that tube. As the crop planting tube 7 moves, the reset rod 11 and the first metal ring 12 fixedly fitted onto its outer surface will move accordingly. Together they move towards the arc-shaped groove 17. As the first metal ring 12 moves, it will compress the spring 13 connected to it. When the staff needs to conduct experiments on the crops planted inside the different crop planting tubes 7, the switching motor 3 is started again, and the circular platform 5 is rotated. As the circular platform 5 rotates, the crop planting tube 7 inside the arc-shaped groove 17 will gradually move outward. With the movement of this crop planting tube 7 and the reaction force of the compressed spring 13, the crop planting tube 7 can be pulled into the storage groove 6 for storage.

[0044] Above the reset rod 11 is a guide rod 9 fixed to the outer surface of the crop planting tube 7, and the guide rod 9 is movably inserted into the interior of the circular platform 5; the guide rod 9 can ensure the stability of the moving crop planting tube 7.

[0045] A semi-circular positioning groove 24 is provided on one side of the outer surface of the pushing metal ring 15. Behind the semi-circular positioning groove 24 closest to the arc groove 17, there is a fixed threaded rod 18 connected to the experimental table 16 by a threaded structure. A locking rod 19 is fixedly provided at the middle position of the front end face of the fixed threaded rod 18. A positioning spring 23 is sleeved on one side of the outer surface of the locking rod 19. A positioning metal ball 20 is connected to the front end face of the positioning spring 23. A through-hole 21 is provided at the middle position of the front end face of the positioning metal ball 20, and the positioning metal ball 20 is movably sleeved on the outer surface of the locking rod 19 through the through-hole 21.

[0046] The front end of the positioning metal ball 20 is inserted into the interior of the semi-circular positioning groove 24 closest to the arc groove 17, and a slot 22 is provided on one side of the inner wall of the semi-circular positioning groove 24. When the crop planting tube 7 moves to the front of the experimental table 16 and is completely inserted into the interior of the arc groove 17, the positioning metal ball 20 will also be inserted into the interior of the semi-circular positioning groove 24 fixedly sleeved on the outer surface of the pushing metal ring 15 on the lower side of the outer surface of the crop planting tube 7 under the action of the spring force of the positioning spring 23 connected to it. The positioning metal ball 20 inserted into the semi-circular positioning groove 24 can position the crop planting tube 7 to prevent its position from deviating.

[0047] If the staff member is a novice and unfamiliar with the experimental procedures, and accidentally moves the crop planting tube 7 during the experiment, the threaded rod 18 can be rotated. Driven by the threaded structure, the threaded rod 18 will move back and forth. When the threaded rod 18 moves forward, the locking rod 19 fixed to the front end of the threaded rod 18 will be engaged in the slot 22 on the inner wall of the semi-circular positioning groove 24, thereby fixing the crop planting tube 7 inside the arc groove 17. By fixing the crop planting tube 7, the stability of the crop planting tube 7 can be ensured, preventing the crop planting tube 7 from moving due to the staff member's experimental operation.

[0048] Each crop planting pipe 7 has a breeding trough cleaning mechanism 2 fixedly installed on its lower end face. The breeding trough cleaning mechanism 2 includes a cylindrical metal shell 201, a metal pipe 206, multiple annular cleaning sponges 207, two small spray heads 208, two concave water source transmission pipes 209, a cleaning water 210, a cylindrical trough 211, and a synchronous transmission mechanism. The cylindrical trough 211 is located in the middle of the upper end face of the cylindrical metal shell 201. The cleaning water 210 is located inside the cylindrical trough 211. The metal pipe 206 is located in the middle of the cleaning water 210. The two small spray heads 208 are fixedly installed at both ends on the upper side of the outer surface of the metal pipe 206. The two concave water source transmission pipes 209 are connected to the two small spray heads 208 respectively. The small spray heads 208 are connected to the cleaning water 210 located on the lower side of the cylindrical trough 211 through the concave water source transmission pipes 209.

[0049] Multiple ring-shaped cleaning sponges 207 are fixedly sleeved on the outer surface of the metal tube 206 from top to bottom, and synchronous transmission enables the metal tube 206 to move up and down as it rotates.

[0050] The cylindrical metal casing 201 is installed on the lower side of the outer surface of the crop planting pipe 7 via a threaded structure, and the inner wall diameter at the bottom end of the crop planting pipe 7 is smaller than the inner wall diameter at the middle and top ends of the crop planting pipe 7. After the breeding trough cleaning mechanism 2 has been used ten times, the cylindrical metal casing 201 needs to be removed through the threaded connection between the cylindrical metal casing 201 and the crop planting pipe 7, and the cleaning water 210 needs to be replaced.

[0051] A sealing plate 212 is fixedly provided on the upper end face of the metal pipe 206, and the outer surface of the sealing plate 212 is in contact with the inner wall of the bottom end of the crop planting pipe 7. The sealing plate 212 can bear the saline soil 8 located inside the crop planting pipe 7 and isolate the saline soil 8 from the cleaning water 210 located inside the cylindrical trough 211 to prevent the two from mixing.

[0052] Since the outer surface of the sealing plate 212 is in contact with the inner wall of the bottom end of the crop planting tube 7, it can prevent the upward-moving sealing plate 212 from contacting the inner wall of the middle and top ends of the crop planting tube 7, thereby pushing the saline-alkali soil 8 adhering to the inner wall of the crop planting tube 7 to the upper surface of the sealing plate 212, resulting in the inability to collect the residual saline-alkali soil 8.

[0053] The synchronous transmission mechanism includes a stepper motor 202. The output shaft of the stepper motor 202 is connected to a square rotating shaft 203 via a coupling. The outer side of the square rotating shaft 203 is provided with a threaded lifting rod 204 that is connected to the cylindrical metal housing 201 via a threaded structure. A square slot 205 is provided at the middle position of the lower end face of the threaded lifting rod 204. The square rotating shaft 203 is inserted into the interior of the square slot 205, and the upper end face of the threaded lifting rod 204 is fixed to the metal tube 206.

[0054] The square shaft 203 has a square cross-section. Its outer surface is flush with the inner wall of the square slot 205, and the two are slidably connected. When planting crops inside the crop planting tube 7 using different soil types, the saline-alkali soil 8 inside the tube is first removed using a shovel or similar tool. Then, the stepper motor 202 is started, driving the connected square shaft 203 to rotate. Because the outer surface of the square shaft 203 is flush with the inner wall of the square slot 205 located at the lower end of the threaded lifting rod 204, the threaded lifting rod 204 will rotate along with the square shaft 203, driven by the threaded structure. The rotating threaded lifting rod 204 will rotate and move up or down. When the threaded lifting rod 204 rotates and moves up, the metal pipe 206 fixed to it will also rotate and move up. As the metal pipe 206 rises, the small spray head 208 fixed to the outer surface of the metal pipe 206 will enter the interior of the crop planting pipe 7. The small spray head 208 can draw the cleaning water 210 located inside the cylindrical groove 211 through the concave water source transmission pipe 209 and spray it onto the inner wall of the crop planting pipe 7. The cleaning water 210 sprayed onto the inner wall of the crop planting pipe 7 will flow back into the cylindrical groove 211 under the action of gravity, so as to recycle the cleaning water 210.

[0055] As the metal tube 206 rotates and rises, the annular cleaning sponge 207 fixed to the outer surface of the metal tube 206 will enter the interior of the crop planting tube 7 and come into contact with the already wet inner wall of the crop planting tube 7, thereby wiping the inner wall of the crop planting tube 7. When the metal tube 206 can no longer move upward, the stepper motor 202 drives the connected square rotating shaft 203 to rotate in the opposite direction, thereby moving the metal tube 206 downward while rotating, wiping the inner wall of the crop planting tube 7 again. After the metal tube 206 has been moving up and down in a cycle for ten minutes, First, wait for the cleaning water 210 inside the crop planting tube 7 to completely flow into the cylindrical trough 211. Then, move the sealing plate 212 back to its original position to isolate the crop planting tube 7 from the cylindrical trough 211. The above technical solution can improve the efficiency and convenience of the breeding process. The automated cleaning process can reduce manual operation, save time and labor, and ensure the cleanliness of each crop planting tube 7, providing a clean and consistent environment for the next round of crop planting. In addition, this automated cleaning function can also reduce human error and omissions, and improve the consistency and accuracy of the experiment.

[0056] A temperature adjustment mechanism for planting tubes is fixedly installed in the middle of the upper surface of the high-portability experimental mechanism. The temperature adjustment mechanism for planting tubes includes a circular column 25, a second metal ring 27, multiple synchronous connection mechanisms (the same number as the crop planting tubes 7), an arc plate 28, a lifting platform 30, a transparent sealing cover 31, and a temperature control mechanism 32. The second metal ring 27 is sleeved on the upper side of the outer surface of the circular column 25 through roller bearings. Multiple arc plates 28 are located above multiple crop planting tubes 7, and the arc plates 28 are connected to the second metal ring 27 through synchronous connection mechanisms.

[0057] Multiple lifting platforms 30 are fixed to the lower end faces of multiple arc-shaped plates 28, multiple transparent sealing covers 31 are fixed to the lower end faces of multiple lifting platforms 30, and multiple temperature control mechanisms 32 are fixed inside the multiple transparent sealing covers 31. The transparent sealing covers 31 are fitted onto the upper end faces of the corresponding crop planting tubes 7. When the crop planting tubes 7 move, the corresponding arc-shaped plates 28, lifting platforms 30, transparent sealing covers 31 and temperature control mechanisms 32 will move together through the synchronous connection mechanism.

[0058] By covering the upper end of the crop planting tube 7 with a transparent sealing cover 31, a small sealed space can be formed. The temperature control mechanism 32 installed on the inner wall of the transparent sealing cover 31 can adjust the temperature inside this small sealed space. Through the above technical solution, the actual temperature conditions of saline-alkali land in various regions can be simulated at the same time, providing conditions closer to the natural environment for crop breeding experiments. Moreover, through zoned temperature control, multiple experiments under different temperature conditions can be carried out simultaneously in the same experimental chamber without repeated experiments. This not only saves time and resources but also improves experimental efficiency. At the same time, by controlling the temperature inside each crop planting tube separately, experimental errors caused by environmental differences can be reduced. This temperature adjustment helps to obtain more reliable and repeatable experimental results, providing more accurate data support for crop breeding research.

[0059] When it is necessary to open this small sealed space to conduct experiments on crops planted inside the crop planting tube 7, the transparent sealing cover 31 can be pulled upward by lifting the lifting platform 30.

[0060] The temperature adjustment mechanism for the planting tube also includes multiple temperature sensors 36, the same number as the transparent sealing covers 31. These temperature sensors 36 are fixed inside the transparent sealing covers 31. A small circulating fan 33 is fixed to the outer surface of the transparent sealing cover 31 on one side of each temperature sensor 36. A digital control display screen 26 is fixed to the outer surface of the circular column 25 between the multiple small circulating fans 33. The digital control display screen 26 is electrically connected to all the lifting platforms 30, temperature control mechanisms 32, small circulating fans 33, and temperature sensors 36. The temperature sensors 36 can monitor the temperature inside each small sealed space in real time and display the data on the outer surface of the digital control display screen 26. The digital control display screen 26 can also control the lifting platforms 30, temperature control mechanisms 32, small circulating fans 33, and temperature sensors 36.

[0061] A small circulating fan 33 installed on the outer surface of the transparent sealing cover 31 can circulate the air inside the small sealed space at specific times each day, thereby preventing the growth of bacteria caused by prolonged lack of air circulation.

[0062] The synchronous connection mechanism includes a synchronous ring 34. A connecting rod 35 is fixedly provided on one side of the upper end face of the synchronous ring 34. The upper end face of the connecting rod 35 is fixed to the arc plate 28 located above it. A square guide rod 29 is fixedly provided on one side of the outer surface of the arc plate 28, and the square guide rod 29 is movably inserted into the interior of the second metal ring 27. When a crop planting tube 7 moves due to the push mechanism, the synchronous ring 34 fixed to it will move along with it. When the synchronous ring 34 moves, the arc plate 28 connected to it through the connecting rod 35, as well as the lifting platform 30, transparent sealing cover 31, temperature control mechanism 32, small circulating fan 33 and temperature sensor 36 fixed to the lower end face of the arc plate 28, will move synchronously. This synchronous connection mechanism can prevent the transparent sealing cover 31 covering the upper end face of the crop planting tube 7 from jamming the crop planting tube 7 and causing it to be unable to move.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A salt-alkali tolerance experimental device for crops in the early stage of growth, comprising a crop breeding experimental chamber (1), characterized in that: The crop breeding experimental box (1) is equipped with a highly portable experimental mechanism. The highly portable experimental mechanism includes a circular platform (5), multiple storage slots (6), crop planting tubes (7) in the same number as the storage slots (6), an experimental platform (16), an arc-shaped groove (17), and a push-out mechanism. The arc-shaped groove (17) is located on the side of the experimental platform (16) facing the circular platform (5). Multiple storage slots (6) are arranged in a ring on the outer side of the upper surface of the circular platform (5). Multiple crop planting tubes (7) are located inside the multiple storage slots (6). Each crop planting tube (7) contains saline-alkali soil (8). The push mechanism can push the crop planting tubes (7) that have moved to the front of the experimental platform (16) into the arc-shaped slot (17) while rotating around the center point of the lower surface of the circular platform (5). A zoned temperature adjustment mechanism is fixedly installed at the middle position of the upper end face of the high-convenience experimental mechanism. The zoned temperature adjustment mechanism includes a circular column (25), a second metal ring (27), multiple synchronous connection mechanisms with the same number as crop planting tubes (7), an arc plate (28), a lifting platform (30), a transparent sealing cover (31), and a temperature control mechanism (32). The second metal ring (27) is sleeved on the upper side of the outer surface of the circular column (25) through roller bearings. Multiple arc plates (28) are respectively located above multiple crop planting tubes (7), and the arc plates (28) are connected to the second metal ring (27) through synchronous connection mechanisms. Multiple lifting platforms (30) are fixed to the lower end face of multiple arc plates (28), multiple transparent sealing covers (31) are fixed to the lower end face of multiple lifting platforms (30), multiple temperature control mechanisms (32) are fixed inside multiple transparent sealing covers (31), and the transparent sealing cover (31) is fitted onto the upper end face of the corresponding crop planting tube (7). When the crop planting tube (7) moves, the corresponding arc plate (28), lifting platform (30), transparent sealing cover (31) and temperature control mechanism (32) will move together through the synchronous connection mechanism. The push mechanism includes a switching motor (3), the output shaft of which is connected to a switching shaft (4) via a coupling, and the upper end face of the switching shaft (4) is connected to the center point of the lower end face of the circular platform (5). A circular metal block (14) is provided behind the switching motor (3). The circular metal block (14) is circular. A support rod is fixedly provided at the middle position of the lower end face of the circular metal block (14), and the lower end face of the support rod is fixed to the lower inner wall of the crop breeding experimental box (1). A pushing metal ring (15) is fixedly sleeved on the lower side of the outer surface of the crop planting tube (7), and the front end face of the pushing metal ring (15) located on the far left is in contact with the rear end face of the circular metal block (14).

2. The salt-alkali tolerance experimental device for crops in the early stage of growth according to claim 1, characterized in that: Each of the crop planting pipes (7) has a breeding trough cleaning mechanism (2) fixedly installed on its lower end face. The breeding trough cleaning mechanism (2) includes a cylindrical metal shell (201), a metal pipe (206), multiple annular cleaning sponges (207), two small spray heads (208), two concave water transmission pipes (209), a cleaning water supply (210), a cylindrical trough (211), and a synchronous transmission mechanism. The cylindrical trough (211) is located in the middle of the upper end face of the cylindrical metal shell (201). The cleaning water (210) is located inside the cylindrical trough (211), the metal pipe (206) is located in the middle of the cleaning water (210), the two small spray heads (208) are respectively fixedly installed at both ends on the outer surface of the metal pipe (206), the two concave water source transmission pipes (209) are respectively connected to the two small spray heads (208), and the small spray heads (208) are connected to the cleaning water (210) located on the lower side of the cylindrical trough (211) through the concave water source transmission pipes (209); Multiple ring-shaped cleaning sponges (207) are fixedly sleeved on the outer surface of the metal tube (206) from top to bottom, and synchronous transmission enables the metal tube (206) to move up and down during rotation.

3. The salt-alkali tolerance experimental device for crops in the early stage of growth according to claim 1, characterized in that: The crop planting tube (7) has a spring groove (10) located inside the circular platform (5) on one side. The spring groove (10) has a first metal ring (12) inside. The axis of the first metal ring (12) is connected to a reset rod (11). A spring (13) is sleeved on one side of the outer surface of the reset rod (11). The two ends of the spring (13) are connected to the inner wall of the first metal ring (12) and the spring groove (10) respectively. The face of the reset rod (11) facing the nearest crop planting tube (7) is fixed to the crop planting tube (7).

4. The salt-alkali tolerance experimental device for crops in the early stage of growth according to claim 3, characterized in that: Above the reset rod (11) is a guide rod (9) fixed to the outer surface of the crop planting tube (7), and the guide rod (9) is movably inserted into the interior of the circular platform (5).

5. The salt-alkali tolerance experimental device for crops in the early stage of growth according to claim 4, characterized in that: A semi-circular positioning groove (24) is provided on one side of the outer surface of the pushing metal ring (15). Behind the semi-circular positioning groove (24) closest to the arc groove (17), there is a fixed threaded rod (18) connected to the experimental table (16) by a threaded structure. A locking rod (19) is fixedly provided at the middle position of the front end face of the fixed threaded rod (18). A positioning spring (23) is sleeved on one side of the outer surface of the locking rod (19). A positioning metal ball (20) is connected to the front end face of the positioning spring (23). A through-hole (21) is provided at the middle position of the front end face of the positioning metal ball (20), and the positioning metal ball (20) is movably sleeved on the outer surface of the locking rod (19) through the through-hole (21). The front end of the positioning metal ball (20) is inserted into the interior of the semi-circular positioning groove (24) closest to the arc groove (17), and a slot (22) is provided on one side of the inner wall of the semi-circular positioning groove (24).

6. The salt-alkali tolerance experimental device for crops in the early stage of growth according to claim 2, characterized in that: The cylindrical metal shell (201) is installed on the lower side of the outer surface of the crop planting tube (7) by means of a threaded structure, and the inner wall diameter of the bottom end of the crop planting tube (7) is smaller than the inner wall diameter of the middle position and the top end of the crop planting tube (7). A sealing plate (212) is fixedly provided on the upper end face of the metal tube (206), and the outer surface of the sealing plate (212) is in contact with the inner wall of the bottom end of the crop planting tube (7).

7. The salt-alkali tolerance experimental device for crops in the early stage of growth according to claim 2, characterized in that: The synchronous transmission mechanism includes a stepper motor (202), the output shaft of which is connected to a square rotating shaft (203) via a coupling. The outer side of the square rotating shaft (203) is provided with a threaded lifting rod (204) that is connected to the cylindrical metal shell (201) via a threaded structure. A square slot (205) is provided at the middle position of the lower end face of the threaded lifting rod (204). The square rotating shaft (203) is inserted into the interior of the square slot (205), and the upper end face of the threaded lifting rod (204) is fixed to the metal tube (206). The square pivot (203) has a square cross-section. The outer surface of the square pivot (203) is in contact with the inner wall of the square slot (205), and the square pivot (203) and the square slot (205) are slidably connected.

8. The salt-alkali tolerance experimental device for crops in the early stage of growth according to claim 1, characterized in that: The synchronous connection mechanism includes a synchronous ring (34), and a connecting rod (35) is fixedly provided on one side of the upper end face of the synchronous ring (34). The upper end face of the connecting rod (35) is fixed to the arc plate (28) located above it. A square guide rod (29) is fixedly provided on one side of the outer surface of the arc plate (28), and the square guide rod (29) is movably inserted into the interior of the second metal ring (27). The partition temperature adjustment mechanism also includes multiple temperature sensors (36) of the same number as the transparent sealing cover (31). The multiple temperature sensors (36) are respectively fixed inside the multiple transparent sealing covers (31). A small circulating fan (33) is fixed to the outer surface of the transparent sealing cover (31) on one side of the temperature sensor (36). A numerical control display screen (26) is fixed to the outer surface of the circular column (25) between the multiple small circulating fans (33). The numerical control display screen (26) is electrically connected to all the lifting platforms (30), temperature control mechanism (32), small circulating fans (33) and temperature sensors (36).

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