Auxiliary planting and conveying device for hydroponic vegetables

Abstract

The invention discloses a hydroponic vegetable auxiliary planting and conveying device, and relates to the technical field of agricultural machinery, the hydroponic vegetable auxiliary planting and conveying device comprises a rack and a culture dish installed on the rack, the culture dish is used for containing a nutrient solution and allowing hydroponic vegetables in a planting basket to grow, and a first air cylinder used for driving the planting basket to vertically lift is assembled on the rack; the first air cylinder vertically drives the planting baskets to be separated from the culture dish hole sites, automatic conveying circulation is achieved, efficient and automatic arrangement of the planting baskets in the culture dish is achieved, and manual intervention is greatly reduced; the driving part is located above the rack and far away from the nutrient solution environment, the liquid corrosion risk is reduced, and long-term stable operation of the device is guaranteed; the wide upper space enables the conveying process of the field planting baskets not to be interfered easily, conveying stability is improved, the device is particularly suitable for scenes with large planting scale and needing frequent equipment maintenance, meanwhile, the detection device and the water tank are matched to supplement nutrient solution in real time, and a stable environment is provided for vegetable growth.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically to a hydroponic vegetable auxiliary planting and conveying device. Background Technology

[0002] With the rapid development of science and technology, hydroponic vegetables have emerged and become an effective way for people to obtain fresh vegetables. Therefore, how to grow hydroponic vegetables more effectively is an aspect that needs to be paid attention to. In the past, hydroponic vegetable seedlings were planted in customized baskets, and then the planting baskets were placed on floating foam boards with holes dug in them. Nutrient-rich water and light were then supplied for the growth of hydroponic vegetables. After the hydroponic vegetables grew, the planting baskets were collected and harvested.

[0003] In this process, the planting, traying, growth, and harvesting of hydroponic vegetable seedlings all require a lot of manual effort. Furthermore, during the growth of hydroponic vegetables, it is necessary to monitor the concentration of nutrient solution in real time and add nutrients in a timely manner.

[0004] 1. In the current process of hydroponic vegetable cultivation, most equipment relies on manual experience to set the nutrient solution supply and planting density parameters. Moreover, nutrient solution monitoring is mostly done by sampling and testing at regular intervals rather than real-time online monitoring. Furthermore, the supply system is not linked to the vegetable growth stage and the plant's nutrient consumption. For example, if the nutrient solution is supplied at the same amount as in the seedling stage during the rapid growth period of vegetables, it is easy to be insufficient. Insufficient nutrient solution will cause the vegetable leaves to turn yellow, growth to be slow, and even root shrinkage. In the early stage of seedling establishment, if the supply is not reduced, it will lead to excessive nutrient solution. Excessive nutrient solution can easily cause root rot and algae growth. In addition, in terms of planting density, the spacing between the holes in the planting board is fixed and cannot be adjusted according to the vegetable variety and growth stage. Workers arranging the trays at a uniform spacing can easily lead to excessive planting density. Excessive planting density will cause plants to compete for resources, grow unevenly, increase the risk of disease and labor costs, and affect efficiency.

[0005] 2. The current hydroponic vegetable cultivation process relies on manual operation. When arranging the trays, workers need to place the planting baskets one by one into the holes of the planting board, and the size of the planting baskets needs to be adjusted frequently due to different vegetable varieties. In the collection process, the harvested planting baskets need to be removed manually from the conveyor belt one by one. The planting baskets on the conveyor belt are arranged closely together, making them difficult to grab. Workers need to bend over and reach repeatedly, further increasing the difficulty of operation. The high intensity of the work can easily lead to physical fatigue for workers, resulting in labor shortages and affecting the continuity of production. At the same time, the precision of manual operation is limited. If the position of the planting basket is misaligned when arranging the trays, the vegetable roots will not be able to contact the nutrient solution as required, affecting growth. If the planting basket is accidentally damaged during collection, it will increase the cost of consumables, and the low efficiency will reduce the number of planting batches per unit time, reducing the overall production efficiency.

[0006] In current hydroponic vegetable cultivation, nutrient solution level and concentration monitoring mostly rely on offline methods. This means workers periodically use instruments to take samples and measure, making real-time data acquisition impossible. When real-time nutrient solution level monitoring is lacking, water levels that are too low expose vegetable roots to air, preventing nutrient absorption and causing wilting. Water levels that are too high submerge the root respiration zone, leading to oxygen deficiency and root rot. Furthermore, workers often fail to detect problems promptly, and by the time obvious growth abnormalities appear, irreversible damage to vegetable quality and yield has already occurred. On the other hand, unreal-time concentration monitoring can result in nutrient solution concentrations that are too high, burning the roots, or too low, failing to meet growth requirements. Frequent manual testing increases worker workload, and concentration fluctuations between testing intervals cannot be controlled in a timely manner, affecting the stability of vegetable growth.

[0007] Therefore, in view of this, the present invention proposes a hydroponic vegetable auxiliary planting and conveying device to make up for and improve the shortcomings of the prior art. Summary of the Invention

[0008] To address the aforementioned technical problems, this invention provides a hydroponic vegetable auxiliary planting and conveying device to solve the technical problems mentioned in the background section.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a hydroponic vegetable auxiliary planting and conveying device, used to realize the automatic arrangement and conveying of hydroponic vegetable planting baskets, including a frame and a culture dish installed on the frame. The culture dish is used to contain nutrient solution and supply the hydroponic vegetables in the planting basket for growth. The frame is equipped with a cylinder one for driving the planting basket to be vertically lifted and a cylinder two for driving the planting basket to be horizontally moved. The cylinder one first drives the planting basket vertically to disengage from the hole in the culture dish, and the cylinder two then drives it horizontally to convey the planting basket. After moving to the target position, the cylinder one resets to make the planting basket fall into the new hole in the culture dish, and the cylinder two resets and retracts, forming an automatic conveying cycle of the planting basket, ensuring the automatic arrangement of the planting baskets in the culture dish.

[0010] Furthermore, when cylinder one and cylinder two are located above the frame, the output end of cylinder one is vertically upward and away from the culture dish, and a support frame is installed on the outer wall of the output end of cylinder one. Cylinder two is horizontally assembled inside the support frame. A movable frame and a connecting frame are installed in sequence below the output end of cylinder two, and a lifting frame for supporting the planting basket is installed at the lower end of the connecting frame. The lifting frame is correspondingly set below the opening of the planting basket.

[0011] Furthermore, when cylinder one and cylinder two are located below the frame, the output end of cylinder one is vertically upward and close to the culture dish, and the frame is located above the support frame; cylinder two is located below cylinder one, and a movable frame and a connecting frame are sequentially installed above the output end of cylinder two.

[0012] Furthermore, the petri dish is equipped with a detection device for monitoring changes in the nutrient solution content inside. A water tank is installed on the end of the frame corresponding to the detection device. The water tank is connected to the petri dish through a pipe. When the detection device detects that the nutrient solution is insufficient, the water tank can replenish the nutrient solution into the petri dish.

[0013] Furthermore, the lifting frame is symmetrically divided into front and rear sides, which are slidably connected and correspond to different types of hydroponic vegetable planting baskets. An external frame is symmetrically installed below the lifting frame, and a cylindrical shaft is rotatably connected inside the external frame. A drive motor is installed at the end of the cylindrical shaft, and adjacent cylindrical shafts can be driven simultaneously by the drive motor through a belt.

[0014] Furthermore, a cam plate is uniformly fixedly connected to the outer wall of the cylindrical shaft, and an adjustment plate is installed above the cam plate. The adjustment plate is slidably connected to the outer frame, and the upper surface of the adjustment plate is in contact with the rear side of the lifting frame.

[0015] Furthermore, the outer wall of the first regulating plate is provided with ventilation holes, the diameter of which gradually increases in the direction away from the lifting frame, and each ventilation hole is equipped with a filter screen to ensure the isolation of impurities during the ventilation process. The side walls of the first regulating plate are equipped with a wetting pad, one end of which is connected to the filter screen and the other end extends into the nutrient solution inside the petri dish, so as to keep the filter screen and the ventilation area moist by absorbing the nutrient solution.

[0016] Furthermore, cylindrical pull shafts are slidably connected inside the outer frame, and adjacent cylindrical pull shafts are integrally connected to ensure that the pulling action can be performed synchronously. Magnetic suction pieces are uniformly fixedly connected to the outer wall of the cylindrical pull shafts.

[0017] Furthermore, the bottom wall of the outer frame is uniformly fixedly connected with stiff springs, and the ends of the stiff springs away from the outer frame are all fixedly connected with circular ring buckles. The upper end of the circular ring buckles is fixedly connected with an adjustment plate two. The adjustment plate two is slidably connected to the outer frame, and the upper surface of the adjustment plate two is in contact with the rear side of the lifting frame.

[0018] Furthermore, iron sheets are uniformly fixedly connected to the outer wall of the circular ring buckle shaft. In the initial state, the iron sheets and magnetic sheets are staggered. A support column is slidably connected to the bottom of the circular ring buckle shaft. The support column is an inverted cone shape that is wider at the top and narrower at the bottom. A buffer pad is fixedly connected to the bottom of the support column. The buffer pad is in close contact with the bottom wall of the outer frame.

[0019] Compared with the prior art, the beneficial effects of the present invention are: (1) This device constructs an automated conveying cycle of "vertical lifting - horizontal movement - repositioning" through the coordinated drive of cylinder one and cylinder two, realizing the efficient and automatic arrangement of planting baskets in the petri dish, greatly reducing manual intervention; while the drive components are located above the frame, away from the nutrient solution environment, reducing the risk of liquid corrosion and extending the service life of the equipment; the layout above provides sufficient space for inspection and maintenance, making it convenient for workers to inspect and maintain cylinders, connecting parts, etc., ensuring the long-term stable operation of the device; the open space above makes the conveying process of planting baskets less susceptible to interference, improving the conveying stability, especially suitable for scenarios with large planting scale and frequent equipment maintenance, while the detection device and water tank can replenish nutrient solution in real time, providing a stable environment for vegetable growth.

[0020] Correspondingly, this device places the drive components below the frame, making full use of vertical space and significantly reducing the horizontal footprint of the device. This makes it suitable for scenarios with limited planting space, such as small planting workshops or home hydroponic environments. The cylinder is close to the culture dish, shortening the lifting stroke of the planting basket and improving conveying efficiency. The lower layout brings the device's center of gravity closer to the bottom, enhancing overall structural stability and reducing the impact of operational vibrations on the growth of hydroponic vegetables. It retains the logic for automatic conveying circulation and nutrient solution replenishment, ensuring functional integrity while improving space utilization through compact design, thus balancing planting efficiency and environmental adaptability.

[0021] (2) This device, through the sliding connection design of the front and rear sides of the lifting frame, combined with the linkage structure of the cylindrical rotating shaft, cam plate and adjustment plate in the outer frame, constructs a mechanical system that can achieve differentiated height adjustment without replacing parts. The drive motor drives multiple sets of cylindrical rotating shafts to rotate synchronously through the belt, so that the cam plate pushes the adjustment plate to rise and fall. This can not only meet the differentiated needs of different types of hydroponic vegetables for the height of exposed roots and stems, but also be seamlessly connected with automatic conveying circulation. While ensuring the efficiency of automatic arrangement of planting baskets, it greatly improves the adaptability of the device to multi-variety planting. It is especially suitable for the high-efficiency production needs of "one device for multiple varieties" in large-scale planting scenarios. The overall structure is mechanically linked and stable. The adjustment process does not require manual intervention, reducing the complexity of operation.

[0022] In addition to flexible adjustment, the ventilation holes on the outer wall of the adjustment plate corresponding to the root and stem parts are designed with a gradually increasing diameter along the direction away from the lifting frame. This gradient structure can guide airflow evenly from near to far to the root system in different positions, avoiding problems such as insufficient local ventilation or excessive wind speed. When there is a height difference between the front and back sides of the lifting frame due to different types of vegetables, the ventilation holes can be specifically adapted to the exposed root and stem areas of different heights, ensuring that the longer exposed roots and stems of lettuce and the shorter exposed roots and stems of water spinach can obtain sufficient and moderate air circulation, effectively promoting root respiration, reducing the risk of root and stem rot caused by lack of oxygen, and providing a personalized ventilation environment for the root systems of different vegetables.

[0023] The filter inside the ventilation holes effectively blocks external dust, impurities, and insects from entering the root area, preventing root contamination and mechanical damage, and ensuring the cleanliness of the hydroponic environment. Combined with the humidifying pad on one side of the regulating plate, it continuously absorbs moisture from the nutrient solution in the culture dish through capillary action, maintaining suitable humidity in the filter and surrounding ventilation area, thus balancing the conflict between "ventilation" and "humidity." It ensures oxygen supply to the roots through ventilation while preventing the roots from drying out due to excessive ventilation through a humid environment. Especially for humidity-sensitive varieties, it significantly enhances root vitality, promotes nutrient absorption, and thus improves vegetable growth speed and quality.

[0024] (3) This device is designed with "gravity self-adjustment and magnetic precise locking" as its core design, and has built a mechanical adjustment system that does not require complex motor drive. The initial height difference is formed by the compression of the hard spring by the gravity of the rear planting basket itself, which naturally adapts to the weight difference of different varieties of vegetables and avoids the theoretical error of empty basket adjustment. The integrated cylindrical pull shaft drives the magnetic plate to move synchronously, forming a variable magnetic attraction force with the iron plate on the ring buckle shaft. Combined with the rebound potential energy of the hard spring, the height can be infinitely fine-tuned. It can not only meet the static requirements of different vegetables for the height of exposed roots and stems, but also compensate for the increase in gravity by adjusting the position of the magnetic plate during the growth and weight gain of vegetables, and dynamically maintain a stable height difference. This design does not require an additional power source and can be adjusted by mechanical linkage alone, which greatly reduces the equipment cost and failure rate.

[0025] The support column features an inverted conical structure, wider at the top and narrower at the bottom. This structure adaptively adjusts its contact angle with the bottom wall of the outer frame as the ring buckle rises and falls. It maintains a stable support state as the lifting frame moves up and down with the adjustment plate, preventing support shifts or swaying due to height changes and enhancing structural stability during adjustment. The bottom buffer pad is made of elastic material, effectively absorbing the impact of gravity when the planting basket is placed, mechanical vibrations during adjustment, and the continuous pressure from the increasing weight of the vegetables. This reduces wear from the hard contact between the rigid spring and the bottom wall of the outer frame, minimizes vibration interference with the root system, and protects the delicate root tips from mechanical damage. This combination of "rigid support and flexible buffer" extends the lifespan of key components and provides a more stable growth environment for hydroponic vegetables, indirectly improving the planting success rate.

[0026] (4) The different adjustment designs for different types of hydroponic vegetables are all adapted to the depth of the petri dishes set at the same level. This advantage is the core support for adapting the two adjustment methods to multi-variety planting. Since the petri dishes are kept in a horizontal state, the height of the nutrient solution inside is completely consistent in all places. There is no need to adjust the liquid level separately to adapt to different varieties of vegetables. This fundamentally simplifies the equipment debugging process for multi-variety planting. The lifting frame achieves differentiated height adjustment through the linkage of the cam plate and the adjustment plate. Although the two are at different heights, the bottom can accurately contact the nutrient solution at the same height to ensure that the roots can absorb nutrients normally. Correspondingly, the rear planting basket, which is adjusted by gravity and magnetic attraction, does not need to change the liquid level of the petri dish even if there is a height difference with the front side. It can also be adapted to the nutrient solution at the same height by controlling the exposed length of the root and stem through its own height change.

[0027] This "uniform liquid level, differentiated height" adaptation logic avoids the cumbersome operation and nutrient waste caused by liquid level adjustment, and ensures that different varieties of vegetables grow stably in the same nutritional environment, greatly improving the convenience and reliability of multi-variety hydroponic cultivation. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the side view of the frame structure in Embodiment 1 of the present invention; Figure 2 This is a top view of the frame structure in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the main view of the rack structure in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the frame's three-dimensional structure from an axial side view in Embodiment 1 of the present invention; Figure 5 This is a partially enlarged three-dimensional structural diagram of the frame from the axial side view in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the frame's three-dimensional structure from an axial side view in Embodiment 2 of the present invention; Figure 7 This is a partially enlarged three-dimensional structural diagram of the frame from the axial side view in Embodiment 2 of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the connecting frame in Embodiment 2 of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the cylindrical rotating shaft in Embodiment 3 of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure of the cam plate in Embodiment 3 of the present invention; Figure 11 This is a schematic diagram of the side view of the cam plate structure in Embodiment 3 of the present invention; Figure 12 This is a schematic diagram of the three-dimensional structure of the cylindrical pull shaft in Embodiment 4 of the present invention; Figure 13 This is a schematic diagram of the three-dimensional structure of the magnetic absorbing sheet in Embodiment 4 of the present invention; Figure 14 This is a schematic diagram of the three-dimensional structure of the support column in Embodiment 4 of the present invention.

[0029] The following are labeled in the diagram: 1. Petri dish; 2. Frame; 3. Cylinder 1; 4. Support frame; 5. Cylinder 2; 6. Moving frame; 7. Connecting frame; 8. Lifting frame; 9. Planting basket; 10. Detection device; 11. Water tank; 12. External frame; 13. Cylindrical shaft; 14. Drive motor; 15. Cam plate; 16. Adjusting plate 1; 17. Ventilation hole; 18. Wetting pad; 19. Cylindrical pull shaft; 20. Magnetic suction plate; 21. Hard spring; 22. Circular ring buckle shaft; 23. Adjusting plate 2; 24. Support column; 25. Buffer pad. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figure 1 - Figure 5 As shown, a hydroponic vegetable auxiliary planting and conveying device is used to realize the automatic arrangement and conveying of hydroponic vegetable planting baskets 9. It includes a frame 2 and a culture dish 1 installed on the frame 2. The culture dish 1 is used to contain nutrient solution and provide nutrients for the growth of hydroponic vegetables in the planting basket 9. The frame 2 is equipped with a cylinder 3 for driving the planting basket 9 to be lifted vertically and a cylinder 5 for driving the planting basket 9 to be moved horizontally. The cylinder 3 first drives the planting basket 9 vertically to disengage from the hole in the culture dish 1. The cylinder 5 then drives it horizontally to convey the planting basket 9. After moving to the target position, the cylinder 3 resets so that the planting basket 9 falls into the new hole in the culture dish 1. The cylinder 5 resets and retracts, forming an automatic conveying cycle of the planting basket 9, ensuring the automatic arrangement of the planting basket 9 in the culture dish 1.

[0032] It should be noted that the petri dish 1 is equipped with a detection device 10 for monitoring changes in the nutrient solution content inside. A water tank 11 is installed on the end of the frame 2 corresponding to the detection device 10. The water tank 11 is connected to the petri dish 1 through a pipe. When the detection device 10 detects that the nutrient solution is insufficient, the water tank 11 can replenish the nutrient solution into the petri dish 1.

[0033] When cylinder 3 and cylinder 5 are positioned above the frame 2, the output end of cylinder 3 is vertically upward and away from the culture dish 1. A support frame 4 is installed on the outer wall of the output end of cylinder 3, and cylinder 5 is horizontally assembled inside the support frame 4. A movable frame 6 and a connecting frame 7 are installed in sequence below the output end of cylinder 5, and a lifting frame 8 for supporting the planting basket 9 is installed at the lower end of the connecting frame 7. The lifting frame 8 is correspondingly positioned below the opening of the planting basket 9.

[0034] Specifically, such as Figure 5 As shown, during use, cylinder 3 acts as the main force source in the vertical direction, driving the support frame 4, cylinder 5, moving frame 6, and connecting frame 7 at its output end to move synchronously. This ultimately lifts the lifting frame 8 upward, steadily supporting the planting basket 9 as it leaves the hole in the culture dish 1. During this process, the planting basket 9 is temporarily separated from the nutrient solution, creating conditions for horizontal movement. Subsequently, cylinder 5 starts, acting as the main force in the horizontal direction, driving the moving frame 6 and connecting frame 7, which in turn link the lifting frame 8, causing it to carry the planting basket 9 forward a fixed unit distance. Once the target position is reached, cylinder 3 begins to reset, driving the support frame 4, cylinder 5, moving frame 6, connecting frame 7, and lifting frame 8 together to move downward, precisely placing the planting basket 9 into the new hole in the culture dish 1, allowing it to re-contact the nutrient solution and ensuring the growth of hydroponic vegetables.

[0035] Afterwards, cylinder 25 resets, driving the moving frame 6, connecting frame 7, and lifting frame 8 back to their initial positions. Since the planting basket 9 is already embedded in the hole of the petri dish 1, it will not retract with the lifting frame 8. This cycle is repeated until the planting basket 9 in the petri dish 1 is full, thus efficiently realizing the automatic arrangement function of the planting basket 9. At the same time, the detection device 10 installed inside the petri dish 1 monitors the water level of the nutrient solution at regular intervals. When the nutrient solution is detected to be insufficient, the nutrient solution in the water tank 11 is promptly added to the petri dish 1 to maintain the appropriate content of the nutrient solution and provide a stable nutritional environment for the growth of hydroponic vegetables.

[0036] Located above the frame 2, the structure is more suitable for scenarios with large-scale planting and frequent equipment maintenance. Among them, the driving components such as cylinder 3 and cylinder 5 are located above the frame 2, away from the nutrient solution environment of the culture dish 1, which can reduce the risk of liquid corrosion and extend the service life of the equipment. At the same time, the upper layout provides more space for equipment inspection and maintenance, allowing workers to more easily inspect and maintain cylinders, connecting parts, etc., ensuring long-term stable operation of the device. Moreover, the lifting and moving process of the planting basket 9 is completed in the relatively open upper space, which is not easily affected by the lower structure, resulting in higher transmission stability.

[0037] Example 2: Based on Example 1, please refer to... Figure 6 - Figure 8As shown, when cylinder 3 and cylinder 5 are located below the frame 2, the output end of cylinder 3 is vertically upward and close to the culture dish 1, and the frame 2 is located above the support frame 4; cylinder 5 is located below cylinder 3, and a movable frame 6 and a connecting frame 7 are installed above the output end of cylinder 5 in sequence.

[0038] Specifically, such as Figure 8 As shown, when in use, the output end of cylinder 3 is vertically upward and close to the culture dish 1. After it is started, it drives the support frame 4, connecting frame 7 and lifting frame 8 located above to move upward. The lifting frame 8 supports the planting basket 9 to detach from the hole of the culture dish 1. Then, cylinder 5 is started. It is located below cylinder 3. Its horizontal output end drives the moving frame 6 and connecting frame 7, which in turn drives the lifting frame 8 to move the planting basket 9 forward a fixed unit distance.

[0039] Once in place, cylinder 3 resets, causing support frame 4, connecting frame 7, and lifting frame 8 to move downwards, lowering the planting basket 9 into the new culture dish 1 well.

[0040] Afterwards, cylinder 2 5 resets, driving the moving frame 6, connecting frame 7 and lifting frame 8 to retract. Planting basket 9 does not retract because it is embedded in the hole of culture dish 1. The cycle repeats until culture dish 1 is filled with planting basket 9. The working logic of detection device 10 and water tank 11 is the same as in Example 1. They monitor and replenish nutrient solution at regular intervals to ensure the continuous stability of the hydroponic process.

[0041] Located below the frame 2, the structure is more suitable for scenarios with limited planting space and a need for overall compactness. By placing the drive components below the frame 2, vertical space can be fully utilized, resulting in a smaller horizontal footprint, making it suitable for use in small planting workshops or small hydroponic settings. At the same time, the cylinder 3 is close to the petri dish 1, and the lifting stroke of the planting basket 9 is shorter, which can improve the transmission efficiency to a certain extent. Furthermore, the lower layout brings the center of gravity of the device closer to the bottom, resulting in stronger overall structural stability and reducing the impact of vibrations generated during equipment operation on the growth of hydroponic vegetables.

[0042] Example 3: Based on Examples 1 and 2, please refer to... Figure 9 - Figure 11As shown, the lifting frame 8 is symmetrically divided into front and rear sides, which are slidably connected and correspond to different types of hydroponic vegetable planting baskets 9. An external frame 12 is symmetrically installed below the lifting frame 8. A cylindrical shaft 13 is rotatably connected inside the external frame 12. A drive motor 14 is installed at the end of the cylindrical shaft 13. Adjacent cylindrical shafts 13 can be driven simultaneously by the drive motor 14 through a belt. Cam plates 15 are evenly fixedly connected to the outer wall of the cylindrical shaft 13. An adjustment plate 16 is installed above the cam plate 15. The adjustment plate 16 is slidably connected to the external frame 12, and the upper surface of the adjustment plate 16 is in contact with the rear side of the lifting frame 8.

[0043] It should be noted that the outer wall of the regulating plate 16 is provided with ventilation holes 17. The diameter of the ventilation holes 17 gradually increases in the direction away from the lifting frame 8, and each ventilation hole 17 is equipped with a filter screen to ensure the isolation of impurities during the ventilation process. Each side wall of the regulating plate 16 is equipped with a wetting pad 18. One end of the wetting pad 18 is connected to the filter screen, and the other end extends into the nutrient solution inside the petri dish 1. By absorbing the nutrient solution, the filter screen and the ventilation area are kept moist.

[0044] Specifically, depending on the different types of hydroponic vegetables to be planted, such as lettuce and water spinach, the former requires a 3cm exposed stem height, while the latter only requires 1cm. The corresponding planting baskets 9 are placed on the front and back sides of the lifting frame 8, which are symmetrically arranged. Since the front and back sides of the lifting frame 8 are slidably connected, they can independently adapt to different sizes of planting baskets 9.

[0045] Once the planting basket 9 is in a stable position, the drive motor 14 starts synchronously, and its output torque is transmitted to the cylindrical shaft 13 inside the outer frame 12. Adjacent cylindrical shafts 13 rotate synchronously through belt linkage, ensuring the consistency of adjustment actions on both sides. As the cylindrical shaft 13 rotates, the cam plate 15 fixed on its outer wall rotates accordingly. The protruding contour of the cam plate 15 pushes the adjustment plate 16 to slide vertically within the outer frame 12. By controlling the rotation angle of the drive motor 14, the lifting height of the adjustment plate 16 can be accurately adjusted, thereby pushing the corresponding side of the lifting frame 8 to rise and fall synchronously, so that the planting baskets 9 on the front and rear sides reach the root and stem exposure height adapted to their own vegetable varieties, realizing differentiated height adjustment.

[0046] During the subsequent transfer and cultivation process, the ventilation holes 17 on the outer wall of the regulating plate 16 continue to play a role. The design of its diameter gradually increasing in the direction away from the lifting frame 8 can guide the airflow to flow evenly to the roots in different positions. Together with the internal filter, it can effectively block external impurities and avoid root contamination. At the same time, one end of the wetted pad 18 on the side wall of the regulating plate 16 is connected to the filter, and the other end is immersed in the nutrient solution of the culture dish 1. It continuously absorbs the nutrient solution through capillary action, keeping the filter and ventilation area moist. This creates a suitable environment of "ventilation and moisture" for the roots of different vegetables, ensuring the balance between root respiration and water demand.

[0047] When the height needs to be adjusted as the vegetables grow, it is only necessary to control the drive motor 14 to adjust the angle of the cam plate 15. There is no need to disassemble or replace parts, and it is seamlessly connected with the automatic conveying cycle of the planting basket 9.

[0048] Example 4: Please refer to Figure 12 - Figure 14 As shown, cylindrical pull shafts 19 are slidably connected inside the outer frame 12, and adjacent cylindrical pull shafts 19 are integrated to ensure that they can be pulled out synchronously. Magnetic suction pieces 20 are uniformly fixed to the outer wall of the cylindrical pull shafts 19, and rigid springs 21 are uniformly fixed to the bottom wall of the outer frame 12. A circular ring buckle 22 is fixedly connected to the end of the rigid spring 21 away from the outer frame 12. An adjustment plate 23 is fixedly connected to the upper end of the circular ring buckle 22. The adjustment plate 23 is slidably connected to the outer frame 12, and the upper surface of the adjustment plate 23 is in contact with the rear side of the lifting frame 8.

[0049] It should be noted that iron sheets are evenly fixedly connected to the outer wall of the circular ring buckle 22. In the initial state, the iron sheets and magnetic plates 20 are staggered. A support column 24 is slidably connected to the bottom of the circular ring buckle 22. The support column 24 is an inverted cone shape that is wider at the top and narrower at the bottom. A buffer pad 25 is fixedly connected to the bottom of the support column 24. The buffer pad 25 is in close contact with the bottom wall of the outer frame 12.

[0050] Specifically, before starting the device, according to the different types of hydroponic vegetables to be planted, the corresponding planting baskets 9 are placed on the front and rear sides of the lifting frame 8 respectively. After the rear planting basket 9 is placed, its own weight, including the vegetables and substrate, compresses the hard spring 21 downwards, causing the circular ring buckle 22 to drive the adjusting plate 23 to move downwards synchronously. At this time, the circular ring buckle 22 forms a gap with the bottom wall of the outer frame 12 and cannot fully contact the bottom, forming an initial height difference with the uncompressed front side. In the initial state, the magnetic suction plate 20 on the outer wall of the cylindrical pull shaft 19 and the iron plate of the circular ring buckle 22 are staggered. The hard spring 21 generates upward rebound potential energy due to the compression of gravity. At this time, it can be manually or mechanically adjusted. The cylindrical pull shaft 19, which is integrated with the mechanical mechanism, drives all the magnetic plates 20 to move synchronously. As the cylindrical pull shaft 19 moves, the magnetic plates 20 gradually align with the iron plates on the lowered circular ring shaft 22, generating a magnetic attraction force. This force, together with the rebound potential energy of the rigid spring 21, stably attracts the circular ring shaft 22 to the target height. If it is necessary to increase the rear height, the magnetic plates 20 can be pulled out until they are completely aligned with the iron plates, enhancing the attraction force to offset part of the gravity, so that the adjustment plate 23 drives the lifting frame 8 to rise moderately. If it is necessary to maintain the current height difference, the magnetic plates 20 are adjusted until they are partially aligned with the iron plates, and the magnetic attraction force balances the gravity and spring force to ensure height stability.

[0051] During this process, the inverted conical structure of the support column 24 adaptively adjusts the support angle as the circular ring shaft 22 moves down. The buffer pad 25 absorbs the impact force during gravity compression to prevent structural vibration. In subsequent cultivation, if the vegetables on the back side grow and increase in weight, the rigid spring 21 will be further compressed. At this time, the cylindrical pull shaft 19 can be pulled again to adjust the position of the magnetic suction plate 20. By enhancing the magnetic attraction force, the increase in gravity is compensated to maintain a stable height difference. At the same time, since the culture dish 1 remains horizontal and the nutrient solution height is consistent, the planting baskets on the front and back sides 9 only control the exposed length of the rootstock by the height difference. There is no need to adjust the liquid level to ensure that the roots can absorb nutrients normally.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydroponic vegetable auxiliary planting and conveying device for automatically arranging and conveying hydroponic vegetable planting baskets (9), comprising a frame (2) and a culture dish (1) mounted on the frame (2), wherein the culture dish (1) is used to contain nutrient solution and supply the hydroponic vegetables in the planting baskets (9) for growth, characterized in that: The frame (2) is equipped with a cylinder 1 (3) for driving the planting basket (9) to be lifted vertically, and a cylinder 2 (5) for driving the planting basket (9) to move horizontally. The cylinder 1 (3) first drives the planting basket (9) vertically to disengage from the hole of the culture dish (1), and the cylinder 2 (5) then drives it horizontally to transport the planting basket (9). After moving to the target position, the cylinder 1 (3) resets so that the planting basket (9) falls into the new hole of the culture dish (1), and the cylinder 2 (5) resets and retracts, forming an automatic conveying cycle of the planting basket (9) to ensure the automatic arrangement of the planting basket (9) in the culture dish (1).

2. The hydroponic vegetable auxiliary planting conveying device according to claim 1, characterized in that: When cylinder 1 (3) and cylinder 2 (5) are located above the frame (2), the output end of cylinder 1 (3) is vertically upward and away from the petri dish (1). A support frame (4) is installed on the outer wall of the output end of cylinder 1 (3). Cylinder 2 (5) is horizontally assembled inside the support frame (4). A movable frame (6) and a connecting frame (7) are installed in sequence below the output end of cylinder 2 (5). A lifting frame (8) for supporting the planting basket (9) is installed at the lower end of the connecting frame (7). The lifting frame (8) is correspondingly set below the opening of the planting basket (9).

3. The hydroponic vegetable auxiliary planting conveying device according to claim 1, characterized in that: When cylinder 1 (3) and cylinder 2 (5) are located below the frame (2), the output end of cylinder 1 (3) is vertically upward and close to the petri dish (1), and the frame (2) is located above the support frame (4); cylinder 2 (5) is located below cylinder 1 (3), and a movable frame (6) and a connecting frame (7) are installed above the output end of cylinder 2 (5) in sequence.

4. The hydroponic vegetable auxiliary planting conveying device according to claim 1, characterized in that: The petri dish (1) is equipped with a detection device (10) for monitoring changes in the nutrient solution content inside. A water tank (11) is installed on the side of the frame (2) corresponding to the detection device (10). The water tank (11) is connected to the petri dish (1) through a pipeline. When the detection device (10) detects that the nutrient solution is insufficient, the water tank (11) replenishes the nutrient solution into the petri dish (1).

5. The hydroponic vegetable auxiliary planting conveying device according to claim 2, characterized in that: The lifting frame (8) is symmetrically divided into front and rear sides, and the front and rear sides are slidably connected, respectively corresponding to different types of hydroponic vegetable planting baskets (9). An external frame (12) is symmetrically installed below the lifting frame (8). A cylindrical shaft (13) is rotatably connected inside the external frame (12). A drive motor (14) is installed at the end of the cylindrical shaft (13). Adjacent cylindrical shafts (13) can be driven simultaneously by the drive motor (14) through a belt.

6. The hydroponic vegetable auxiliary planting conveying device according to claim 5, characterized in that: A cam plate (15) is uniformly fixedly connected to the outer wall of the cylindrical shaft (13). An adjustment plate (16) is installed above the cam plate (15). The adjustment plate (16) is slidably connected to the outer frame (12). The upper surface of the adjustment plate (16) is in contact with the rear side of the lifting frame (8).

7. The hydroponic vegetable auxiliary planting conveying device according to claim 6, characterized in that: The outer wall of the adjustment plate (16) is provided with ventilation holes (17). The diameter of the ventilation holes (17) gradually increases in the direction away from the lifting frame (8), and a filter screen is installed inside each ventilation hole (17). A wetting pad (18) is installed on the side wall of the adjustment plate (16). One end of the wetting pad (18) is connected to the filter screen, and the other end extends into the nutrient solution inside the petri dish (1). The filter screen and the ventilation area are kept moist by absorbing the nutrient solution.

8. The hydroponic vegetable auxiliary planting conveying device according to claim 5, characterized in that: The outer frame (12) is slidably connected with cylindrical pull shafts (19), and adjacent cylindrical pull shafts (19) are integrated to ensure synchronous pulling action. Magnetic suction pieces (20) are uniformly fixedly connected to the outer wall of the cylindrical pull shafts (19).

9. The hydroponic vegetable auxiliary planting conveying device according to claim 5, characterized in that: The bottom wall of the outer frame (12) is uniformly fixed with a rigid spring (21). The end of the rigid spring (21) away from the outer frame (12) is fixedly connected with a circular ring buckle (22). The upper end of the circular ring buckle (22) is fixedly connected with an adjustment plate (23). The adjustment plate (23) is slidably connected to the outer frame (12), and the upper surface of the adjustment plate (23) is in contact with the rear side of the lifting frame (8).

10. The hydroponic vegetable auxiliary planting conveying device according to claim 9, characterized in that: Iron sheets are uniformly fixed to the outer wall of the circular ring buckle (22). In the initial state, the iron sheets and magnetic plates (20) are staggered. A support column (24) is slidably connected to the bottom of the circular ring buckle (22). The support column (24) is an inverted cone shape that is wider at the top and narrower at the bottom. A buffer pad (25) is fixedly connected to the bottom of the support column (24). The buffer pad (25) is in close contact with the bottom wall of the outer frame (12).

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