A constant-temperature stratified layer type seedling raising frame device for pueraria lobata seedling propagation
By designing a temperature-controlled, tiered seedling rack for kudzu seedling propagation, and utilizing a rotating mounting plate and tiered cultivation platform, combined with spraying and temperature control components, the problems of inaccurate environmental control and low space utilization in traditional seedling cultivation have been solved. This has enabled a highly efficient and automated seedling cultivation process, improving the survival rate and growth quality of kudzu seedlings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI LANQIAN ECOLOGICAL AGRICULTURE CO LTD
- Filing Date
- 2025-10-13
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional kudzu seedling cultivation is constrained by the natural environment, with difficulty in controlling temperature and humidity, low space utilization, long cultivation cycle, low survival rate, and difficulty in controlling pests and diseases, as well as insufficient automation.
A temperature-controlled, tiered seedling rack for kudzu seedling propagation was designed. It uses a rotating mounting plate and tiered cultivation platforms, combined with a low-speed motor drive, and is equipped with a spray system and a temperature control and ventilation system to achieve multi-layer utilization of the seedling space and precise environmental control.
It improves seedling efficiency and survival rate, reduces manual operation, provides a stable growth environment, promotes uniform growth of kudzu seedlings, and enhances seedling quality and space utilization.
Smart Images

Figure CN224386333U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kudzu seedling technology, and in particular to a constant temperature layered seedling rack device for kudzu seedling propagation. Background Technology
[0002] Kudzu root, also known as arrowroot or sweet kudzu, is a plant used for both food and medicine. Its roots are rich in starch, isoflavones, and other active ingredients, giving it high economic and medicinal value. With the increasing market demand for kudzu root, large-scale cultivation and efficient seedling techniques have become particularly important.
[0003] Traditional open-air seedling cultivation is significantly constrained by the natural environment. Key environmental factors such as temperature and humidity are difficult to control. When encountering severe weather such as low temperatures, heavy rain, and strong sunlight, the survival rate of kudzu seedlings is often below 60%, and the seedling cycle is as long as 45-60 days, which cannot meet the needs of intensive production. Although simple greenhouse seedling cultivation can resist external environmental interference to a certain extent, the temperature distribution inside the greenhouse is uneven, with a temperature difference of 8-12℃ between the upper and lower layers. This results in uneven growth of kudzu seedlings in the same greenhouse, with a robust seedling rate of less than 50%, which seriously affects the survival rate of subsequent transplanting and the yield of kudzu.
[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: existing technologies in the propagation of kudzu seedlings have problems such as imprecise environmental control, low space utilization, high labor costs, difficulty in pest and disease control, and insufficient automation. Utility Model Content
[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of low space utilization. To this end, we propose a constant temperature layered seedling rack device for kudzu seedling propagation.
[0006] To achieve the above objectives, this application adopts the following technical solution: a constant temperature layered seedling rack device for kudzu seedling propagation, comprising a placement box and a pair of rotating mounting discs. The pair of rotating mounting discs are respectively rotatably mounted on the inner side wall of the placement box. A limiting component is provided between the outer side wall of the pair of rotating mounting discs and the placement box. Several fixing rods are uniformly fixedly installed at equal intervals between the pair of rotating mounting discs. A cultivation platform is provided below each of the fixing rods. Fixing frames are rotatably sleeved at both ends of the fixing rods. A pair of fixing frames are fixedly installed at both ends of the top surface of the cultivation platform. A low-speed motor is fixedly installed on the outer side wall of the placement box. The output shaft of the low-speed motor is coaxially fixedly connected to the outer side wall of one of the rotating mounting discs. A spray component is provided on the top surface inside the placement box. A temperature control and ventilation component is provided on the inner side wall of the placement box.
[0007] Preferably, the limiting component includes an annular limiting rail, which is fixedly installed on the inner side wall of the mounting box. A limiting ring is fixedly sleeved on the outer side wall of the rotating mounting plate, and the limiting ring is movably disposed within the annular limiting rail. Several annular limiting grooves are opened on the inner side wall of the mounting box. Several fixed columns are fixedly installed at equal intervals on the outer side wall of the rotating mounting plate, and a rotating limiting plate is rotatably installed at the other end of the several fixed columns.
[0008] Preferably, a number of fixed columns and rotating limiting discs are movably arranged in annular limiting grooves, the annular limiting grooves are concentrically arranged, and the cross-section of the annular limiting grooves is convex.
[0009] Preferably, the spray assembly includes several spray main pipes, which are fixedly installed on the top surface inside the placement box. An infusion main pipe is fixedly installed on the outer wall of the placement box. Several spray main pipes are fixedly installed through the outer wall of the placement box. Several spray main pipes are connected to the infusion main pipe. Spray nozzles are evenly connected to several spray main pipes at equal intervals. An infusion pipe is connected to the infusion main pipe.
[0010] Preferably, the temperature control and ventilation assembly includes a ventilation main pipe, which is fixedly installed on the outer wall of the placement box. A temperature control cylinder is fixedly installed on the inner wall of the placement box. Several air supply pipes are evenly connected to the ventilation main pipe at equal intervals. The air supply pipes pass through the outer walls of the placement box and the temperature control cylinder in sequence. An electric temperature control pipe is fixedly installed inside the temperature control cylinder. Several air passage holes are evenly opened on the outer wall of the temperature control cylinder at equal intervals. A ventilation branch pipe is connected to the end of the ventilation main pipe.
[0011] Preferably, a water collection box is fixedly installed at the bottom of the placement box, and several LED supplementary lights are fixedly installed on the top surface of the placement box.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] In this invention, by setting up a pair of rotating mounting discs and several layered cultivation platforms, the seedling space is utilized in multiple layers, which greatly increases the seedling yield per unit area and thus significantly improves seedling efficiency. The rotating mounting discs are driven by a low-speed motor and, in conjunction with the layered cultivation platforms, the seedling rack can be rotated automatically, which facilitates the unified management and operation of seedlings in different positions and reduces the workload of manual handling and care.
[0014] In this invention, the rotating mounting plate design allows the seedling rack to rotate as a whole, facilitating observation, fertilization, and pest and disease control for seedlings at different levels, thus improving management convenience. The limiting components ensure the stability and positioning accuracy of the rotating mounting plate during rotation, preventing wobbling and offset, and guaranteeing the long-term reliable operation of the device.
[0015] In this invention, the temperature control and ventilation system precisely regulates the temperature and humidity within the seedling tray. Combined with the uniform irrigation provided by the spray system, it offers a stable growth environment for the kudzu seedlings, avoiding the adverse effects of environmental fluctuations on seedling growth in traditional seedling cultivation methods and promoting healthy and uniform seedling growth. Furthermore, the LED supplemental lighting installed on the top surface of the seedling tray provides uniform and sufficient illumination for seedlings at different levels, compensating for insufficient natural light and further promoting the growth and development of the kudzu seedlings. Attached Figure Description
[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:
[0017] Figure 1 This is a schematic diagram of the external three-dimensional structure of the present invention. Figure 1 ;
[0018] Figure 2 This is a schematic diagram of the external three-dimensional structure of the present invention. Figure 2 ;
[0019] Figure 3 This is a schematic diagram of the fixing rod structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the limiting component structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the spray assembly structure of this utility model;
[0022] Figure 6 This is a top view of the temperature control and ventilation component of this utility model.
[0023] Figure 7 This is a cross-sectional structural diagram of the temperature control and ventilation component of this utility model.
[0024] Legend: 1. Placement box; 2. Rotating mounting plate; 3. Limiting assembly; 31. Annular limiting rail; 32. Limiting ring; 33. Annular limiting groove; 34. Fixing column; 35. Rotating limiting plate; 4. Fixing rod; 41. Culture table; 42. Fixing frame; 43. Low-speed motor; 5. Spray assembly; 51. Main spray pipe; 52. Infusion main pipe; 53. Spray nozzle; 54. Inlet pipe; 6. Temperature control and ventilation assembly; 61. Main ventilation pipe; 62. Temperature control cylinder; 63. Gas supply pipe; 64. Electrically controlled temperature pipe; 65. Ventilation hole; 66. Ventilation branch pipe; 7. Water collection box; 8. LED supplemental light. Detailed Implementation
[0025] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0026] Reference Figures 1 to 7 As shown, this utility model provides a technical solution: a temperature-controlled, layered seedling rack device for propagating kudzu seedlings, including a placement box 1 for providing a controlled growth environment for kudzu seedlings. Inside the placement box 1, a pair of rotating mounting discs 2 are symmetrically arranged. These two rotating mounting discs 2 are respectively rotatably mounted on the inner side wall of the placement box 1, forming a rotatable support structure.
[0027] To ensure the stability and positioning accuracy of the rotating mounting discs 2 during rotation, a limiting component 3 is provided between the outer walls of the pair of rotating mounting discs 2 and the mounting box 1. This limiting component 3 can restrict the radial and axial displacement of the rotating mounting discs 2, ensuring their smooth rotation.
[0028] Between a pair of rotating mounting discs 2, several fixing rods 4 are evenly and uniformly fixed. These fixing rods 4 extend horizontally and serve as support structures. Below each fixing rod 4, a cultivation platform 41 is provided for placing seedling trays or nutrient pots for kudzu seedlings. The cultivation platforms 41 are distributed in layers along the circumference of the rotating mounting discs 2, realizing layered utilization of space. To ensure that the cultivation platforms 41 are stably fixed to the fixing rods 4, a pair of fixing frames 42 are rotatably fitted at both ends of each fixing rod 4. The pair of fixing frames 42 are fixedly installed at both ends of the top surface of the corresponding cultivation platform 41, thereby firmly connecting the cultivation platform 41 to the fixing rod 4. This design allows the cultivation platform 41 to rotate together with the fixing rods 4 and the rotating mounting discs 2, realizing layered seedling cultivation.
[0029] To drive the rotation of the entire seedling rack structure, a low-speed motor 43 is fixedly installed on the outer wall of the placement box 1. The output shaft of the low-speed motor 43 is coaxially and fixedly connected to the outer wall of one of the rotating mounting plates 2. Driven by the low-speed motor 43, the entire seedling rack structure, consisting of the rotating mounting plate 2, the fixed rod 4, and the cultivation platform 41, can rotate slowly and stably, facilitating the management and operation of seedlings in different positions and ensuring that the seedlings receive uniform light and water.
[0030] To automate the irrigation of kudzu seedlings, a spraying assembly 5 is installed on the inner top surface of the placement box 1. This spraying assembly 5 can evenly spray water or nutrient solution onto the kudzu seedlings on each cultivation platform 41.
[0031] To maintain a constant temperature environment and facilitate air exchange inside the placement box 1, a temperature control and ventilation component 6 is installed on the inner wall of the placement box 1. This temperature control and ventilation component 6 can regulate the temperature inside the box and introduce fresh air while expelling stale air, providing a suitable growing environment for the kudzu seedlings.
[0032] Through the above structure, the present invention realizes constant-temperature stratified propagation of kudzu seedlings. The rotating mounting plate 2 and the stratified cultivation platform 41 improve space utilization; the low-speed motor 43 realizes the automated rotation of the seedling rack, which is convenient for management; the spray assembly 5 and the temperature control and ventilation assembly 6 provide precise environmental control to ensure that the kudzu seedlings grow under optimal conditions, thereby improving seedling efficiency and quality.
[0033] Reference Figure 3 and Figure 4 As shown, the limiting component 3 includes an annular limiting rail 31, which is fixedly installed on the inner side wall of the mounting box 1, forming an annular track. A limiting ring 32 is fixedly sleeved on the outer side wall of the rotating mounting plate 2, and the limiting ring 32 is movably disposed within the annular limiting rail 31. The cooperation between the annular limiting rail 31 and the limiting ring 32 can effectively limit the radial displacement of the rotating mounting plate 2 and prevent it from shaking during rotation.
[0034] To further improve the stability and positioning accuracy of the rotating mounting plate 2, several annular limiting grooves 33 are provided on the inner side wall of the mounting box 1. These annular limiting grooves 33 are concentrically arranged with the annular limiting rail 31. Several fixing posts 34 are fixedly installed at equal intervals on the outer side wall of the rotating mounting plate 2. A rotating limiting plate 35 is rotatably installed at the other end of each fixing post 34.
[0035] Several fixed posts 34 and a rotating limiting plate 35 are movably disposed within an annular limiting groove 33. The annular limiting groove 33 has a convex cross-section. This convex cross-section design allows the rotating limiting plate 35 to be confined within the groove, enabling rotation while preventing axial disengagement, thereby further limiting the axial displacement of the rotating mounting plate 2 and ensuring the stability and reliability of the rotating mounting plate 2 during rotation.
[0036] Through the coordinated action of the annular limiting rail 31, limiting ring 32, annular limiting groove 33, fixed column 34 and rotating limiting plate 35, the limiting component 3 can provide all-round stable support and precise limiting for the rotating mounting plate 2, ensuring the stability and safety of the entire seedling rack device during long-term operation.
[0037] Reference Figure 5As shown, the sprinkler assembly 5 includes several main sprinkler pipes 51, which are fixedly installed on the inner top surface of the seedling tray 1, arranged in parallel or crisscrossing patterns to cover the entire seedling area. An infusion pipe 52 is fixedly installed on the outer wall of the seedling tray 1. Several main sprinkler pipes 51 are fixedly inserted through the outer wall of the seedling tray 1 and connected to the infusion pipe 52. Multiple sprinkler heads 53 are evenly and equidistantly connected to the main sprinkler pipes 51, which can evenly spray water or nutrient solution onto the cultivation platform 41 below. The infusion pipes 52 are connected to an inlet pipe 54, which can be connected to an external water source or nutrient solution supply system. This design enables automated and uniform irrigation of kudzu seedlings, ensuring that each seedling receives sufficient water and nutrients.
[0038] Reference Figure 6 and Figure 7 As shown, the temperature control and ventilation assembly 6 includes a main ventilation pipe 61, which is fixedly installed on the outer wall of the housing 1. A temperature control cylinder 62 is fixedly installed on the inner wall of the housing 1. Several air supply pipes 63 are evenly spaced and connected to the main ventilation pipe 61, passing through the outer walls of the housing 1 and the temperature control cylinder 62 in sequence. An electric temperature control pipe 64, which can be an electric heating pipe or a cooling pipe, is fixedly installed inside the temperature control cylinder 62 to regulate the air temperature passing through it. Several air passage holes 65 are evenly spaced and provided on the outer wall of the temperature control cylinder 62, allowing air whose temperature has been regulated by the temperature control cylinder 62 to enter the housing 1. A ventilation branch pipe 66 is connected to the end of the main ventilation pipe 61, which can be connected to a fan or exhaust system to achieve air circulation and exchange between the inside and outside of the housing. The temperature and humidity inside the placement box 1 can be precisely controlled by the temperature control and ventilation component 6, and the air can be kept fresh to provide the best growing environment for the kudzu seedlings.
[0039] In addition, to further optimize the seedling environment, a water collection box 7 is fixedly installed at the bottom of the seedling box 1 to collect excess water and nutrient solution after spraying, prevent water accumulation, and allow for recycling. Several LED supplemental lights 8 are also fixedly installed on the top surface of the seedling box 1. These LED supplemental lights 8 can provide sufficient and suitable light spectrum for the kudzu seedlings, make up for insufficient natural light, promote photosynthesis, and accelerate seedling growth.
[0040] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A temperature-controlled, tiered seedling rack device for propagating kudzu seedlings, characterized in that, The device includes a placement box and a pair of rotating mounting discs. The pair of rotating mounting discs are rotatably mounted on the inner side wall of the placement box. A limit assembly is provided between the outer side wall of the pair of rotating mounting discs and the placement box. Several fixing rods are evenly and uniformly fixedly installed between the pair of rotating mounting discs. A culture platform is provided below each of the fixing rods. Fixing frames are rotatably sleeved at both ends of the fixing rods. A pair of fixing frames are fixedly installed at both ends of the top surface of the culture platform. A low-speed motor is fixedly installed on the outer side wall of the placement box. The output shaft of the low-speed motor is coaxially and fixedly connected to the outer side wall of one of the rotating mounting discs. A spray assembly is provided on the top surface inside the placement box. A temperature control and ventilation assembly is provided on the inner side wall of the placement box.
2. The constant-temperature tiered seedling rack device for kudzu seedling propagation according to claim 1, characterized in that: The limiting component includes an annular limiting rail, which is fixedly installed on the inner side wall of the placement box. A limiting ring is fixedly sleeved on the outer side wall of the rotating mounting plate, and the limiting ring is movably disposed within the annular limiting rail. Several annular limiting grooves are opened on the inner side wall of the placement box. Several fixing columns are evenly fixedly installed on the outer side wall of the rotating mounting plate at equal intervals, and a rotating limiting plate is rotatably installed at the other end of the fixing columns.
3. The constant-temperature tiered seedling rack device for kudzu seedling propagation according to claim 2, characterized in that: Several fixed columns and rotating limiting discs are movably arranged in annular limiting grooves, and the annular limiting grooves are concentrically arranged, with the cross-section of the annular limiting grooves being convex.
4. The constant-temperature tiered seedling rack device for kudzu seedling propagation according to claim 1, characterized in that: The spray assembly includes several spray main pipes, which are fixedly installed on the top surface inside the placement box. An infusion main pipe is fixedly installed on the outer wall of the placement box. Several spray main pipes are fixedly installed through the outer wall of the placement box. Several spray main pipes are connected to the infusion main pipe. Spray nozzles are evenly connected to several spray main pipes at equal intervals. An infusion main pipe is connected to an inlet pipe.
5. The constant-temperature tiered seedling rack device for kudzu seedling propagation according to claim 1, characterized in that: The temperature control and ventilation assembly includes a main ventilation pipe, which is fixedly installed on the outer wall of the placement box. A temperature control cylinder is fixedly installed on the inner wall of the placement box. Several air supply pipes are evenly connected to the main ventilation pipe at equal intervals. The air supply pipes pass through the outer walls of the placement box and the temperature control cylinder in sequence. An electric temperature control tube is fixedly installed inside the temperature control cylinder. Several air passage holes are evenly opened on the outer wall of the temperature control cylinder at equal intervals. A ventilation branch pipe is connected to the end of the main ventilation pipe.
6. The constant-temperature tiered seedling rack device for kudzu seedling propagation according to claim 1, characterized in that: A water collection box is fixedly installed at the bottom of the placement box, and several LED supplementary lights are fixedly installed on the top surface of the placement box.