High-efficiency crop seed breeding device

Abstract

The application relates to the technical field of seed seedling cultivation, and proposes a high-efficiency crop seed cultivation device, which comprises a machine body, a fixed plate, a partition plate, a lifting plate and a central shaft. The fixed plate divides the machine body into multiple layers, the central shaft drives the partition plate to rotate to divide each layer into multiple workstations, the light assembly and the spraying assembly are arranged in different workstations, the partition plate blocks the migration of water mist and the direct irradiation of light, the fixed plate is fixed with a detection assembly, the detection assembly is connected with a control center, the lifting plate carries a seedling tray and is driven to lift according to the seedling canopy height measured by the detection assembly, so that the seedling canopy and the light assembly and the spraying assembly maintain a preset optimal working distance. The application has the beneficial effects that the partition plate isolates the spraying workstation and the light workstation in space, so that the spraying operation and the light operation are respectively carried out in different areas, the partition plate blocks the transverse migration of water mist to the light workstation and blocks the direct irradiation of light to the spraying area, so that the service life of the equipment is prolonged, and the seedling cultivation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the technical field of seed and seedling cultivation, and more specifically, to a high-efficiency crop seed cultivation device. Background Technology

[0002] Seedling cultivation is a fundamental step in agricultural production, directly affecting crop germination rate, seedling quality, and subsequent yield. With the rapid development of facility agriculture and factory-style seedling production technology, large-scale, high-efficiency three-dimensional cultivation devices are increasingly widely used in the production of seedlings for economic crops such as vegetables, flowers, and medicinal herbs. In the seedling cultivation process, sprinkler irrigation and artificial lighting are two of the most crucial and frequently performed operations. Sprinklers provide the water needed for seedling growth, while lighting provides the energy source for photosynthesis. To achieve large-scale cultivation within limited space, multi-layer three-dimensional cultivation equipment has become the mainstream choice in the industry. By stacking seedling trays vertically, it significantly increases the effective cultivation area per unit area. However, with the increase in the number of cultivation layers and the increase in seedling density per unit area, how to rationally arrange the sprinkler system and lighting system within the same equipment and ensure their efficient and non-interfering collaborative operation has become a key technical issue restricting equipment performance and seedling quality.

[0003] Currently, the most commonly used three-dimensional cultivation devices in the seedling cultivation field are fixed-layer rack structures. These devices fix each layer of seedling trays on a multi-layered support, with spray pipes and supplemental lighting panels fixedly installed above each layer. Spraying and illumination occur simultaneously in the same space. Water mist directly disperses onto the lamp panel surface, accelerating light decay and increasing lamp failure rates. Minerals and impurities in the water mist deposit on the lamp cover surface, forming scale, which gradually reduces the light transmittance of the lamps, increasing supplemental lighting energy consumption while decreasing effectiveness. Furthermore, the water mist forms a water film on the lamp panel surface, scattering and absorbing light, reducing the effective light intensity reaching the seedling canopy layer, affecting supplemental lighting effects and seedling photosynthetic efficiency. High-intensity light from the illumination area directly hits the spray area, easily promoting algae growth on the spray heads and pipe inner walls, causing nozzle blockage and pipe contamination. This cross-interference between spraying and illumination reduces the equipment's lifespan and affects seed and seedling cultivation efficiency. Therefore, a new technical solution is needed to address these problems. Summary of the Invention

[0004] This application proposes a high-efficiency crop seed cultivation device. A partition spatially isolates the spraying station from the lighting station, allowing spraying and lighting operations to be carried out in separate areas. The partition blocks the lateral drift of water mist from the spraying station to the lighting station, while simultaneously preventing direct sunlight from the lighting area from hitting the spraying area. This solves the technical problem of cross-interference between spraying and lighting, achieving the goal of extending equipment lifespan and improving seedling cultivation efficiency.

[0005] Therefore, this application provides a high-efficiency crop seed cultivation device, including a body for placing seedling trays, several fixed plates horizontally arranged within the body, a central shaft vertically arranged within the body, several partitions fixedly connected to the central shaft, and a lifting plate arranged between adjacent partitions. The fixed plates are evenly distributed along the vertical direction to divide the body into several horizontal layers. The partitions are all fixedly connected to the central shaft, and the central shaft is rotatably connected to the body to drive the partitions to rotate within the horizontal layers. Each horizontal layer is provided with several partitions evenly distributed along the central shaft to divide each layer into multiple workstation areas. Lighting components or spraying components are respectively provided in different workstation areas. Both the lighting components and spraying components are connected to the fixed plates. The partitions are used to avoid cross-interference of seedling cultivation operations between different workstations. The lifting plate is used to place seedling trays and moves up and down between two partitions to maintain a preset optimal working distance between the seedling crowns on the trays and the lighting and spraying components. The fixed plates are provided with a detection component for detecting the height of the seedling crowns, and the detection component is connected to a control center for controlling the lifting of the lifting plate.

[0006] By adopting the above technical solution: the partition divides each layer of cultivation space into independent fan-shaped workstation areas, and the lighting components and spraying components are set in different workstation areas, so that the spraying operation and the lighting operation are completely separated in space. As the partition rotates with the central axis, it can continuously block the lateral drift path of water mist from the spraying workstation to the lighting workstation, fundamentally avoiding water mist contact with the lamp plate surface, eliminating the problems of scale deposition and accelerated light decay. At the same time, the light in the lighting area is also blocked by the partition and cannot directly shine on the spraying area, effectively inhibiting the growth of algae on the spray head and the inner wall of the pipe, thereby solving the technical problem of cross-interference between spraying and lighting, achieving the purpose of extending the service life of the equipment and improving the seedling cultivation efficiency.

[0007] Preferably, a sealing plate is provided below the fixed plate, and the sealing plate is fixedly connected to the fixed plate. The height of the sealing plate is the same as the height of the spray assembly and the lighting assembly. The sealing plate is correspondingly provided with the partition. The lower part of the partition directly abuts against the lower fixed plate. A gap is left between the upper part of the partition and the upper fixed plate to avoid interference with the spray assembly and the lighting assembly. The sealing plate is used to seal the gap between the partition and the upper fixed plate when the partition is stationary to prevent water mist from drifting from the spray station to the lighting station.

[0008] Preferably, the upper end of the sealing plate is fixedly connected to the fixing plate, and the lower end of the sealing plate is provided with a sealing strip, which is used to seal the gap between the partition and the sealing plate caused by processing errors.

[0009] By adopting the above technical solution: when the partition rotates with the central axis, a gap must be maintained between the upper part of the partition and the upper fixed plate to avoid interference with the spray and lighting components. This gap always exists when the partition rotates to different positions, posing a risk that water mist may drift laterally from the spray position to the lighting position along this gap. The sealing plate is fixedly installed below the fixed plate and arranged correspondingly to the partition. When the central axis drives the partition to the pause position, the partition and the sealing plate are aligned horizontally. The lower end of the sealing plate extends above the partition and covers and seals the gap between the partition and the upper fixed plate, forming a completely closed isolation barrier between the spray position and the lighting position when the partition is stationary. This further eliminates the risk of interference caused by the rotational gap. The water mist leakage channel ensures complete isolation between spraying and lighting when the partition is stationary. Due to dimensional tolerances and assembly errors in machining, it is difficult to achieve a completely rigid fit between the partition and the sealing plate. Residual tiny gaps can still become channels for water mist penetration. The sealing strip, located at the lower end of the sealing plate, utilizes the compressible deformation characteristics of elastic materials to form a flexible sealing contact between the partition and the sealing plate. This automatically compensates for gaps caused by machining errors and assembly deviations, making the fit between the sealing plate and the partition more tight and reliable. This further improves the sealing effect when the partition is stationary, ensuring that water mist cannot pass through the gaps between the partition and the sealing plate, thus guaranteeing complete isolation between the spraying station and the lighting station when the partition is stationary.

[0010] Preferably, the lifting plate is provided with a lifting assembly for driving the lifting plate to move vertically up and down between the two partitions. The lifting assembly includes a lifting groove opened inside the central shaft, a lifting drive component disposed in the lifting groove, a lead screw disposed vertically in the lifting groove, and a slider slidably connected to the lifting groove. The lifting drive component is used to drive the lead screw to rotate around its own axis in the lifting groove. The slider is threadedly connected to the lead screw. The side wall of the lifting groove is provided with a sliding hole. Each lifting plate corresponds to a sliding hole. A connecting block is slidably disposed in each sliding hole. The two ends of the connecting block are fixedly connected to the slider and the lifting plate, respectively. The lifting drive component is connected to the control center.

[0011] Preferably, the central shaft is composed of multiple unit rods, with each horizontal layer inside the machine body corresponding to one unit rod, and each unit rod is equipped with a set of lifting components, and adjacent unit rods are fixedly connected.

[0012] By adopting the above technical solution: the lifting component is integrated inside the central shaft. When the lifting drive drives the lead screw to rotate, the slider moves vertically up and down along the lead screw. The connecting block passing through the sliding hole drives the lifting plate to move vertically up and down between the two partitions, thus decoupling the two motion dimensions of horizontal rotation and vertical lifting. When the central shaft drives the partitions to rotate horizontally, the lifting plate can independently move vertically up and down without being disturbed by the rotational motion. This allows the seedling tray to be adjusted to the optimal working height to match the lighting component or the spraying component when rotating to different work positions, meeting the differentiated needs of different work positions for seedling crown height. The central shaft is made of multiple unit rods spliced ​​along the axial direction. Each unit rod corresponds to a horizontal layer and integrates a set of independent lifting components inside. Adjacent unit rods are fixedly connected to form a complete central shaft. When the equipment needs to increase the number of cultivation layers in the vertical direction, it is only necessary to continue to splice additional unit rods at the end of the central shaft to complete the expansion. Each layer of lifting components can be independently assembled and tested before leaving the factory, reducing the difficulty of on-site assembly and debugging. At the same time, when the lifting component of a certain layer is damaged, the corresponding unit rod of that layer can be disassembled and replaced separately without replacing the entire central shaft, thus reducing maintenance costs.

[0013] Preferably, the spraying assembly includes a spraying pipe fixedly connected to the fixed plate and an atomizing nozzle disposed on the spraying pipe, the atomizing nozzle being positioned toward the lifting plate for spraying the seedling trays on the lifting plate.

[0014] Preferably, the lighting component includes a grow lamp fixedly connected to the fixed plate, with the light-emitting surface of the grow lamp facing the lifting plate to provide supplemental lighting for the seedling trays on the lifting plate.

[0015] By adopting the above technical solution: the spray pipes are fixedly installed on the lower surface of the fixed plate and located in the spraying area. The spray direction of the atomizing nozzles is downward, directly facing the seedling trays on the lifting plate. When the lifting plate is raised and lowered under the control of the control center to a position that maintains the preset optimal spraying distance from the spraying components, the droplets sprayed from the nozzles are in the optimal atomization particle size and coverage state when they reach the seedling canopy layer. This avoids damage to the seedlings due to droplet impact from too close a distance or waste due to droplet drift from too far a distance. Combined with the blocking effect of the baffle, the water mist in the spraying area is confined within the spraying position, which not only ensures the spraying effect but also avoids the water mist from drying out the light-receiving position. The grow lights are fixedly installed on the lower surface of the fixed plate and located in the lighting area. The light-emitting surface of the grow lights faces downwards and is directly facing the seedling trays on the lifting plate. When the lifting plate is raised and lowered under the control of the control center to maintain the preset optimal lighting distance from the lighting components, the seedling canopy is in the optimal light intensity range, avoiding light burn due to being too close or insufficient lighting due to being too far away. This ensures the supplementary lighting effect and light energy utilization efficiency. At the same time, the grow lights and the spray components are located in different work areas and are separated by a partition, so that the grow lights are always in a dry working environment, avoiding water vapor corrosion and lamp cover contamination, and extending the service life of the lamps.

[0016] Preferably, the detection component is a distance sensor connected to the control center. The distance sensor is fixedly connected to the fixed plate and emits a detection signal vertically downward. The distance sensor is used to detect the distance between the seedling crown on the seedling tray and the fixed plate. The control center controls the lifting plate to rise and fall according to the detected distance between the seedling crown and the fixed plate so that the seedling crown and the spray component or the lighting component maintain a preset working distance. The control center also controls the spray component to spray or the lighting component to provide supplemental lighting.

[0017] Preferably, the lighting components and spraying components are distributed along the circumference of the central axis according to the required lighting duration and spraying frequency for the seedlings.

[0018] By adopting the above technical solution: a distance sensor detects the vertical distance between the seedling crown and the fixed plate in real time and transmits the detection signal to the control center. The control center calculates the actual height of the seedling crown based on this distance data and generates lifting control commands to drive the lifting plate to rise and fall, so that the seedling crown maintains the preset optimal working distance between itself and the spraying and lighting components, respectively, realizing closed-loop feedback control. As the seedling crown gradually rises with the increase of the growth time, the lifting plate automatically descends to compensate for the increase in the height of the seedling crown, so that the distance between the seedling crown and the fixed functional components remains constant, without the need for manual intervention, thus improving the automation level and operating accuracy of the equipment. The number and arrangement order of the lighting and spraying components along the central axis are set according to the light duration and spraying frequency required by the target crop variety at a specific growth stage, so that the ratio of the number of times the lifting plate passes through the lighting and spraying stations during one rotation of the partition matches the agronomic requirements. By adjusting the rotation speed and the number of stations, precise control of the daily cumulative light duration and spraying frequency can be achieved, meeting the differentiated cultivation needs of different crop varieties and different growth stages, and improving the versatility and process adaptability of the equipment.

[0019] Preferably, the lower part of the machine body is provided with a number of support legs, each of which is fixedly connected to the machine body. The bottom end of the machine body is provided with a rotary drive component for driving the central shaft to rotate, and the rotary drive component is fixedly connected to the bottom end of the machine body.

[0020] By adopting the above technical solution: the support legs are set at the bottom of the machine body to support the machine body on the working plane, the rotary drive component is fixedly installed at the bottom of the machine body and is connected to the central shaft for transmission. The rotary drive component is located outside the machine body and at the lowest position of the machine body. This avoids the drive motor occupying the internal cultivation space of the machine body, so that all the vertical space inside the machine body can be used to arrange the cultivation layers and install functional components, thereby improving the utilization efficiency of the cultivation space inside the machine body.

[0021] The working principle and beneficial effects of this application are as follows: 1. By setting up partitions to divide each layer of cultivation space into independent fan-shaped workstation areas, the lighting components and spraying components are set in different workstation areas, so that the spraying operation and the lighting operation are completely separated in space. As the partitions rotate with the central axis, they can continuously block the lateral drift path of water mist from the spraying workstation to the lighting workstation, fundamentally avoiding water mist contact with the lamp panel surface, eliminating the problems of scale deposition and accelerated light decay. At the same time, the light in the lighting area is also blocked by the partitions and cannot directly shine on the spraying area, effectively inhibiting the growth of algae on the spray head and the inner wall of the pipe, thus solving the technical problem of cross-interference between spraying and lighting, achieving the goal of extending the service life of the equipment and improving the seedling cultivation efficiency.

[0022] 2. By installing a sealing plate and sealing strip, a gap must be maintained between the upper part of the partition and the upper fixed plate to avoid interference with the spray and lighting components when the partition rotates with the central shaft. This gap always exists when the partition rotates to different positions, posing a risk of water mist drifting laterally from the spray position to the lighting position along this gap. The sealing plate is fixedly installed below the fixed plate and corresponding to the partition. When the central shaft drives the partition to the pause position, the partition and the sealing plate are aligned horizontally. The lower end of the sealing plate extends above the partition and covers and seals the gap between the partition and the upper fixed plate, forming a completely closed isolation barrier between the spray position and the lighting position when the partition is stationary, further eliminating the interference caused by the rotation gap. The water mist leakage channel ensures complete isolation between spraying and lighting when the partition is stationary. Due to dimensional tolerances and assembly errors in machining, it is difficult to achieve a completely rigid fit between the partition and the sealing plate. Residual tiny gaps can still become channels for water mist penetration. The sealing strip, located at the lower end of the sealing plate, utilizes the compressible deformation characteristics of elastic materials to form a flexible sealing contact between the partition and the sealing plate. This automatically compensates for gaps caused by machining errors and assembly deviations, making the fit between the sealing plate and the partition more tight and reliable. This further improves the sealing effect when the partition is stationary, ensuring that water mist cannot pass through the gaps between the partition and the sealing plate, thus guaranteeing complete isolation between the spraying station and the lighting station when the partition is stationary.

[0023] 3. By setting up lifting and detection components, when the lifting drive component drives the lead screw to rotate, the slider moves vertically up and down along the lead screw. The connecting block passing through the sliding hole drives the lifting plate to move vertically up and down between the two partitions, realizing the decoupling of the two motion dimensions of horizontal rotation and vertical lifting. When the central shaft drives the partition to rotate horizontally, the lifting plate can independently move vertically up and down without being disturbed by the rotational motion. This allows the seedling tray to be adjusted to the optimal working height to match the lighting or spraying components when rotating to different work positions, meeting the differentiated needs of different work positions for seedling crown height. The central shaft is made of multiple unit rods spliced ​​along the axial direction. Each unit rod corresponds to a horizontal layer and integrates a set of independent lifting components. Adjacent unit rods are fixedly connected to form a complete central shaft. When the equipment needs to increase the number of cultivation layers in the vertical direction, it is only necessary to continue to splice additional unit rods at the end of the central shaft to complete the expansion. Each layer of lifting components can be independently assembled and tested before leaving the factory, reducing the difficulty of on-site assembly and debugging. At the same time, when the lifting component of a certain layer is damaged, the corresponding unit rod of that layer can be disassembled and replaced separately without replacing the entire central shaft, reducing maintenance costs. Attached Figure Description

[0024] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1This is a schematic diagram of the structure of a high-efficiency crop seed cultivation device according to this application; Figure 2 This is a schematic diagram of the internal structure of the body of this application; Figure 3 This is a schematic diagram of the internal working station distribution of the machine body in this application; Figure 4 This is a schematic diagram of the structure connecting the partition plate and the lifting plate on the central axis of this application; Figure 5 This is a structural schematic diagram of the body connection and fixing plate of this application; Figure 6 This application shows a structural schematic diagram of a lifting assembly installed on each floor.

[0026] The technical features in the attached drawings are labeled as follows: 1. Body; 2. Fixing plate; 21. Center hole; 3. Center shaft; 31. Lifting groove; 32. Sliding hole; 4. Partition plate; 5. Lifting plate; 6. Illumination component; 61. Growth lamp; 7. Spraying component; 71. Spraying pipeline; 72. Atomizing nozzle; 8. Sealing plate; 81. Sealing strip; 9. Guiding component; 91. Guiding groove; 92. Guiding block; 10. Lifting component; 101. Lead screw; 102. Slider; 103. Connecting block; 104. Lifting drive component; 20. Rotation drive component; 30. Support leg; 40. Opening and closing door; 50. Snap-fit ​​rod; 501. Snap-fit ​​groove; 60. Pick-up and drop-off port. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1 like Figures 1-2As shown, this embodiment provides a high-efficiency crop seed cultivation device, including a body 1 for placing seedling trays, several fixed plates 2 horizontally arranged inside the body 1, a central shaft 3 vertically arranged inside the body 1, several partitions 4 fixedly connected to the central shaft 3, and lifting plates 5 arranged between adjacent partitions 4. The fixed plates 2 are evenly distributed along the vertical direction to divide the body 1 into several horizontal layers. The partitions 4 are all fixedly connected to the central shaft 3. The central shaft 3 is rotatably connected to the body 1 to drive the partitions 4 to rotate within the horizontal layers. Several partitions are arranged in each horizontal layer. Plates 4 are evenly distributed along the central axis 3 to divide each layer into multiple work areas. Lighting components 6 or spraying components 7 are set in different work areas. Both lighting components 6 and spraying components 7 are connected to fixed plates 2. Partitions 4 are used to avoid cross-interference between seedling operations in different work areas. Lifting plates 5 are used to place seedling trays and move up and down between two partitions 4 to keep the seedling crowns on the seedling trays at the preset optimal working distance from the lighting components 6 and spraying components 7. Fixed plates 2 are equipped with detection components for detecting the height of the seedling crowns. The detection components are connected to a control center for controlling the lifting of lifting plates 5.

[0029] like Figures 2-4 As shown, in this embodiment, the machine body 1 has a cylindrical closed structure, and the interior of the machine body 1 forms a closed cultivation chamber. Three layers of fixing plates 2 are provided, each layer of fixing plates 2 being evenly fixed to the inner wall of the machine body 1 along the vertical direction. The distance between two adjacent fixing plates 2 is 80cm. The three layers of fixing plates 2 divide the internal space of the machine body 1 into four independent horizontal layers along the vertical direction. The fixing plate 2 is a circular plate structure, formed by laser cutting from 304 stainless steel plate. A central hole 21 is opened at the center of the fixing plate 2. The central shaft 3 passes through the central hole 21, and a ball bearing is provided between the central shaft 3 and the central hole 21. The inner ring of the ball bearing is interference-fitted with the outer wall of the central shaft 3, and the outer ring of the ball bearing is interference-fitted with the inner wall of the central hole 21, allowing the central shaft 3 to pass through the central hole 21. The central shaft 3 is a vertically arranged hollow shaft. The axial extension direction of the central shaft 3 coincides with the vertical center line of the machine body 1. The lower end of the central shaft 3 passes through the bottom wall of the machine body 1 and is rotatably installed at the bottom of the machine body 1 through a thrust ball bearing seat. The upper end of the central shaft 3 is rotatably installed at the top of the machine body 1 through a deep groove ball bearing seat. The bottom end of the central shaft 3 extends from the bottom wall of the machine body 1. A rotary drive component 20 is provided at the bottom end of the central shaft 3. The extended part of the central shaft 3 is connected to the output shaft of the rotary drive component 20 through a coupling. The rotary drive component 20 drives the central shaft 3 to rotate around its own vertical axis. In this embodiment, the rotary drive component 20 is preferably a servo motor. The servo motor is fixedly installed outside the bottom end of the machine body 1. The output shaft of the servo motor is coaxial with the central shaft 3.

[0030] like Figures 3-5As shown, four partitions 4 are fixedly installed on the outer peripheral wall of the central shaft 3 in each horizontal layer. The four partitions 4 are evenly distributed along the circumference of the central shaft 3, and the included angle between adjacent partitions 4 is 90°. The partitions 4 are vertically arranged rectangular flat plates made of aluminum alloy plates. The inner edges of the partitions 4 are fixedly connected to the outer wall of the central shaft 3 by welding. The partitions 4 extend radially outward along the central shaft 3. The outer edges of the partitions 4 are close to the inner wall of the body 1, but a rotation gap of 5mm-10mm is left between them. A 2mm gap is left between the bottom end of the partitions 4 and the upper surface of the lower fixed plate 2. A gap of 50mm-100mm is left between the top of the partition 4 and the lower surface of the upper fixed plate 2 to ensure that the partition 4 does not rub against the lighting component 6 and the spraying component 7 set on the fixed plate 2 when rotating with the central axis 3. The four sets of partitions 4 evenly divide the circular space of each horizontal layer into four independent fan-shaped work areas along the circumference. The included angle of each fan-shaped work area is 90°. Among the four fan-shaped work areas, the two opposite ones are lighting work areas, which together occupy 180°. The other two opposite ones are a spraying work area and a material feeding work area. The spraying work area is located between the two lighting work areas.

[0031] like Figures 3-5 As shown, a sealing plate 8 is fixedly installed on the lower surface of the fixing plate 2. The sealing plate 8 has a plate-like structure. The upper end of the sealing plate 8 is welded and fixed to the lower surface of the fixing plate 2. The sealing plates 8 are evenly distributed around the central axis 3. The number of sealing plates 8 is the same as the number of partitions 4, and the sealing plates 8 and partitions 4 are arranged in a one-to-one correspondence in the circumferential direction. The vertical height of the sealing plate 8 is the same as the installation height of the spray assembly 7 and the lighting assembly 6. The lower end of the sealing plate 8 is located below the plane where the spray assembly 7 and the lighting assembly 6 are located. The lower end of the sealing plate 8 has an opening along the sealing plate 8. An installation groove extending along the length direction is provided with a sealing strip 81 embedded in the installation groove. In this embodiment, the sealing strip 81 is a D-shaped sealing strip made of silicone rubber. The lower end of the sealing strip 81 protrudes from the groove opening of the installation groove and abuts against the top of the partition 4. When the central shaft 3 drives the partition 4 to rotate to the pause position, the partition 4 and the sealing plate 8 are aligned with each other. The sealing plate 8 covers and seals the gap between the partition 4 and the upper fixed plate 2 through the sealing strip 81 set at its lower end, so that a closed isolation barrier is formed between the spray station and the light irradiation station when the partition 4 is stationary.

[0032] like Figures 2-4As shown, a lifting plate 5 is provided between two adjacent sets of partitions 4. Each lifting plate 5 is a fan-shaped plate structure made of aluminum alloy plate. The included angle of the fan of the lifting plate 5 is 90°. The radial dimension of the lifting plate 5 is the same as that of the partition 4. The left and right edges of the lifting plate 5 are slidably connected to the two adjacent sets of partitions 4 respectively. The lifting plate 5 and the two adjacent sets of partitions 4 together form a fan-shaped cultivation unit module. The partition 4 is the left and right side walls of the cultivation unit module, and the lifting plate 5 is the bottom plate of the cultivation unit module. The upper surface of the lifting plate 5 is used to place the seedling tray. The upper surface of the lifting plate 5 can also be provided with positioning protrusions. The positioning protrusions extend along the circumference of the lifting plate 5 and form a positioning area that matches the bottom contour of the seedling tray to limit the horizontal sliding of the seedling tray on the lifting plate 5.

[0033] like Figures 4-6As shown, the lifting plate 5 slides between the two partitions 4, driven by the lifting assembly 10 inside the central shaft 3, allowing the lifting plate 5 to rise and fall vertically between two adjacent fixed plates 2. The lifting assembly 10 includes a lifting groove 31 opened inside the central shaft 3, a lifting drive component 104 disposed in the lifting groove 31, a lead screw 101 vertically disposed in the lifting groove 31, and a slider 102 slidably engaged with the lifting groove 31. The lifting groove 31 is a cylindrical cavity extending axially along the central shaft 3. The lifting drive component 104 is preferably a stepper motor, and the stepper motor is fixedly mounted... The stepper motor is mounted on the top of the lifting groove 31 with its output shaft pointing vertically downwards. The output shaft is connected to the upper end of the lead screw 101 via a perforated flexible coupling. The lead screw 101 is vertically positioned at the center of the lifting groove 31. The slider 102 is cylindrical and threaded onto the lead screw 101. The outer circumferential wall of the slider 102 slides against the inner wall of the lifting groove 31. A sliding hole 32 extending axially is provided on the side wall of the central shaft 3 at the position corresponding to each lifting plate 5. The sliding hole 32 is a rectangular hole 20mm wide and 500mm long. 32. The lifting groove 31 is connected to the outside of the central shaft 3. A connecting block 103 is inserted into each sliding hole 32. The connecting block 103 is a metal rod with a rectangular cross-section. One end of the connecting block 103 extends into the lifting groove 31 and is fixedly connected to the outer wall of the slider 102. The other end of the connecting block 103 extends out of the central shaft 3 and is fixedly connected to the inner edge of the lifting plate 5. When the stepper motor drives the lead screw 101 to rotate, the slider 102 slides up and down along the axial direction of the lifting groove 31 under the drive of the lead screw 101. The slider 102 drives the lifting plate 5 through the connecting block 103. The partition 4 is vertically raised and lowered as a whole. In this embodiment, in order to ensure the sealing between workstations, a foldable sealing cover is provided in the sliding hole 32. The sealing cover is used to ensure that water mist will not leak at the sliding hole 32 and will not affect the smooth sliding of the connecting block 103 in the sliding hole 32. A guide component 9 is also provided between the lifting plate 5 and the partition 4 to guide the sliding of the lifting plate 5. The guide component 9 includes a guide groove 91 opened on the partition 4 and a guide block 92 fixedly connected to the lifting plate 5. The guide block 92 is located in the guide groove 91 and is slidably connected to the guide groove 91.

[0034] In this embodiment, the central shaft 3 is formed by splicing four unit rods along the axial direction. Each horizontal layer in the machine body 1 corresponds to one unit rod, and the length of each unit rod is 80cm. Each unit rod is equipped with a lifting assembly 10 to drive the lifting plate 5 of the corresponding layer to lift. The upper end face of the unit rod is provided with an annular flange, and six bolt holes are evenly opened in the circumferential direction of the annular flange. The lower end face of the unit rod is provided with six threaded holes. Two adjacent unit rods are fixedly connected by bolts passing through the bolt holes on the annular flange and the threaded holes of the lower unit rod. The four unit rods are spliced ​​together to form a complete central shaft 3.

[0035] like Figures 3-5As shown, the spray assembly 7 includes a spray pipe 71 and an atomizing nozzle 72. The spray pipe 71 is fixedly installed in the spray station area on the lower surface of the fixed plate 2. The spray pipe 71 is a ring copper pipe fixed to the lower surface of the fixed plate 2 by pipe clamps. One end of the spray pipe 71 is closed, and the other end passes through the side wall of the machine body 1 and is connected to the external water supply system. A solenoid valve and a flow regulating valve are connected in series between the external water supply system and the spray pipe 71. Multiple atomizing nozzles 72 are installed on the spray pipe 71 in a uniform distribution. The spray direction of each atomizing nozzle 72 is vertically downward and directly facing the seedling tray on the lifting plate 5. The lighting component 6 includes an LED plant growth light 61 board, which is fixedly installed on the lower surface of the fixed plate 2 in the lighting station area. The LED plant growth light 61 board has a flat structure with its light-emitting surface facing vertically downward. The length of the LED plant growth light 61 board is adapted to the fan-shaped area of ​​the lifting plate 5. Red LED chips, blue LED chips and far-red LED chips are evenly arranged on the LED plant growth light 61 board.

[0036] The detection component is a laser rangefinder sensor, which is fixedly installed on the lower surface of the fixed plate 2 and located directly above the lifting plate 5. The emitting end of the laser rangefinder sensor faces vertically downward and emits a laser detection signal vertically downward. The signal output end of the laser rangefinder sensor is electrically connected to the control center through a signal line. The control center is a PLC controller, which is fixedly installed on the outside of the machine body 1 and electrically connected to the laser rangefinder sensor, stepper motor, servo motor, solenoid valve and LED plant growth light 61 board.

[0037] The working principle of this embodiment is as follows: The operator places the seedling tray containing the seedlings on the lifting plate 5. The control center controls the servo motor to drive the central shaft 3 to rotate intermittently in a stepping motion. After each 90° rotation, it pauses for 30 minutes. During the pause, the cultivation unit module located in the lighting position is continuously illuminated by the LED plant growth light 61 plate, and the cultivation unit module located in the spraying position is intermittently sprayed by the atomizing nozzle 72. When a seedling tray just enters the lighting position and pauses, the laser rangefinder sensor detects the distance between the seedling crown and the fixed plate 2 in real time and transmits the detection signal to the PLC controller. The PLC controller calculates the current actual height of the seedling crown based on the distance data and controls the stepper motor to drive the lead screw 101 to rotate. The lead screw 101 drives the slider 102 to rise and fall. The slider 102 drives the lifting plate 5 to rise and fall through the connecting block 103, so that the seedling crown and the LED plant growth light 61 plate maintain the preset optimal lighting distance. When stopped, the PLC controller controls the stepper motor to drive the lifting plate 5 to rise and fall, maintaining the preset optimal spraying distance between the seedling crown and the atomizing nozzle 72. Then, it controls the solenoid valve to open for 15 seconds for spraying and then close. After the spraying is turned off, the PLC controller controls the stepper motor to drive the lifting plate 5 of the entire layer to fall, so that the seedling trays in the lighting station are at the optimal lighting distance. Since the spraying time is only a dozen seconds, the dozen seconds that the lighting station is not at the optimal lighting distance are negligible compared to the 30 minutes of the entire lighting interval. As the partition 4 rotates with the central shaft 3, it continuously blocks the lateral drift of water mist from the spraying station to the lighting station. The sealing plate 8 and the sealing strip 81 supplement the seal between the partition 4 and the fixed plate 2 when the partition 4 is paused. When a certain cultivation unit module rotates to the station corresponding to the operation window, the PLC controller controls the stepper motor to drive the lifting plate 5 to fall to the picking and placing height, so that the operator can pick up and place the seedling trays.

[0038] Example 2 The difference between this embodiment and Embodiment 1 is that the body 1 in this embodiment is a cylindrical body. The cylindrical body is a double-layer structure consisting of an outer cylinder and an inner cylinder. A polyurethane insulation layer is filled between the outer cylinder and the inner cylinder. Four support legs 30 are provided at the bottom of the cylindrical body. The four support legs 30 are evenly distributed along the circumference of the bottom wall of the cylindrical body. The upper end of each support leg 30 is welded and fixed to the bottom wall of the cylindrical body. The lower end of the support leg 30 is provided with a shock-absorbing pad. The shock-absorbing pad is made of rubber material and is fixedly connected to the lower end of the support leg 30 by bolts to absorb the vibration generated during the operation of the equipment.

[0039] like Figure 6As shown, the cylindrical body has a rectangular opening 60 at the position corresponding to the operating station. An opening / closing door 40 is provided at the opening / closing door 60 for closing or opening the opening / closing door 60. The opening / closing door 40 is preferably made of transparent PC board to facilitate observation of the seedling cultivation by the operator. One edge of the opening / closing door 40 is rotatably connected to the outer wall of the cylindrical body via a hinge. The other edge of the opening / closing door 40 is provided with a locking rod 50. The locking rod 50 is a cylindrical metal rod and is rotatably connected to the outer surface of the opening / closing door 40 via a rotating seat. The axis of the locking rod 50 is parallel to the surface of the opening / closing door 40. The locking rod 50 can rotate... The moving seat rotates freely around its own axis; a snap-fit ​​groove 501 is fixedly installed on the outer wall of the cylindrical body on the other side of the loading and unloading port 60. The snap-fit ​​groove 501 is a metal groove with a U-shaped cross section and the opening of the snap-fit ​​groove 501 is set upward. Guide slopes are provided at both ends of the snap-fit ​​groove 501. When the opening and closing door 40 is closed, the operator rotates the snap-fit ​​rod 50 to make the snap-fit ​​rod 50 embed into the snap-fit ​​groove 501. The snap-fit ​​rod 50 and the snap-fit ​​groove 501 engage to lock the opening and closing door 40 in the closed state. When the operator rotates the snap-fit ​​rod 50 in the opposite direction to make the snap-fit ​​rod 50 disengage from the snap-fit ​​groove 501, the opening and closing door 40 can be flipped outward to open.

[0040] In this embodiment, a rotary drive component 20 is provided at the bottom end of the central shaft 3. The rotary drive component 20 is a direct drive torque motor. The stator of the direct drive torque motor is fixedly connected to the bottom wall of the cylindrical body, and the rotor of the direct drive torque motor is fixedly connected to the lower end of the central shaft 3. The rotor of the direct drive torque motor directly drives the central shaft 3 to rotate. The positioning accuracy is ±0.1°, which can accurately control the central shaft 3 to stop after rotating 90° each time.

[0041] In this embodiment, the circumferential distribution of the lighting component 6 and the spraying component 7 along the central axis 3 differs from that in Embodiment 1. Each horizontal layer within the cylindrical body is equipped with six partitions 4, evenly distributed along the circumference of the central axis 3. The angle between adjacent partitions 4 is 60°. The six partitions 4 divide each layer into six fan-shaped workstation areas. Within these six fan-shaped workstation areas, the circumferential arrangement is sequentially: operating station, lighting station, spraying station, lighting station, lighting station, and spraying station. Specifically, there is one operating station, three lighting stations, and two spraying stations. The lighting and spraying stations are separated by a partition 4. The operating station is located between the lighting and spraying stations and is only used for picking up and placing seedling trays. The operating station is not equipped with a lighting component 6 or a spraying component 7. This embodiment increases the proportion of daily lighting time in the total time by configuring three lighting stations and two spraying stations. It is suitable for seedling varieties with high light requirements and relatively low water requirements.

[0042] The remaining structure of this embodiment is the same as that of Embodiment 1 and will not be repeated here. The working principle of this embodiment is basically the same as that of Embodiment 1. The difference is that when a certain cultivation unit module rotates to the operating position with the partition 4, the control center controls the stepper motor in the unit rod of that layer to drive the lifting plate 5 to descend to the picking and placing height. The operator can open the opening and closing door 40 to take out or put in the seedling tray. After the operation is completed, the opening and closing door 40 is closed. The control center controls the lifting plate 5 to rise to the working height that matches the next working position according to the detection signal of the detection component, and the equipment resumes rotation operation.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency crop seed cultivation device, characterized in that, The system includes a body (1) for placing seedling trays, several fixed plates (2) horizontally arranged inside the body (1), a central shaft (3) vertically arranged inside the body (1), several partitions (4) fixedly connected to the central shaft (3), and lifting plates (5) arranged between adjacent partitions (4). The fixed plates (2) are evenly distributed along the vertical direction to divide the body (1) into several horizontal layers. The partitions (4) are all fixedly connected to the central shaft (3). The central shaft (3) is rotatably connected to the body (1) to drive the partitions (4) to rotate within the horizontal layers. Several partitions (4) are arranged in each horizontal layer along the central shaft (3). The uniform distribution is used to divide each layer into multiple work areas. Lighting components (6) or spraying components (7) are set in different work areas. Both the lighting components (6) and the spraying components (7) are connected to the fixed plate (2). The partition (4) is used to avoid cross-interference of seedling operation between different work areas. The lifting plate (5) is used to place the seedling tray and lift between the two partitions (4) so ​​that the seedling crown on the seedling tray and the lighting components (6) and spraying components (7) maintain the preset optimal working distance. The fixed plate (2) is equipped with a detection component for detecting the height of the seedling crown. The detection component is connected to a control center for controlling the lifting plate (5).

2. The high-efficiency crop seed cultivation device according to claim 1, characterized in that, A sealing plate (8) is provided below the fixed plate (2). The sealing plate (8) is fixedly connected to the fixed plate (2). The height of the sealing plate (8) is the same as the height of the spray assembly (7) and the lighting assembly (6). The sealing plate (8) is correspondingly provided with the partition (4). The lower part of the partition (4) directly abuts against the lower fixed plate (2). The upper part of the partition (4) and the upper fixed plate (2) have a gap to avoid interference with the spray assembly (7) and the lighting assembly (6). The sealing plate (8) is used to seal the gap between the partition (4) and the upper fixed plate (2) when the partition (4) is stationary to prevent water mist from drifting from the spray station to the lighting station.

3. The high-efficiency crop seed cultivation device according to claim 2, characterized in that, The upper end of the sealing plate (8) is fixedly connected to the fixing plate (2), and the lower end of the sealing plate (8) is provided with a sealing strip (81). The sealing strip (81) is used to seal the gap between the partition plate (4) and the sealing plate (8) caused by processing errors.

4. The high-efficiency crop seed cultivation device according to claim 1, characterized in that, The lifting plate (5) is provided with a lifting assembly (10) for driving the lifting plate (5) to move vertically between two partitions (4). The lifting assembly (10) includes a lifting groove (31) opened inside the central shaft (3), a lifting drive component (104) set in the lifting groove (31), a lead screw (101) set vertically in the lifting groove (31), and a slider (102) slidably connected to the lifting groove (31). The lifting drive component (104) is used to drive the lead screw (101) to rotate around its own axis in the lifting groove (31). The slider (102) is threadedly connected to the lead screw (101). The side wall of the lifting groove (31) is provided with a sliding hole (32). Each lifting plate (5) corresponds to a sliding hole (32). A connecting block (103) is slidably set in each sliding hole (32). The two ends of the connecting block (103) are fixedly connected to the slider (102) and the lifting plate (5) respectively. The lifting drive component (104) is connected to the control center.

5. The high-efficiency crop seed cultivation device according to claim 4, characterized in that, The central shaft (3) is composed of multiple unit rods. Each horizontal layer in the machine body (1) corresponds to a unit rod. Each unit rod is equipped with a set of lifting components (10). Adjacent unit rods are fixedly connected.

6. The high-efficiency crop seed cultivation device according to claim 1, characterized in that, The spray assembly (7) includes a spray pipe (71) fixedly connected to the fixed plate (2) and an atomizing nozzle (72) set on the spray pipe (71). The atomizing nozzle (72) is set towards the lifting plate (5) to spray the seedling trays on the lifting plate (5).

7. The high-efficiency crop seed cultivation device according to claim 1, characterized in that, The lighting component (6) includes a growth lamp (61) fixedly connected to the fixed plate (2). The light-emitting surface of the growth lamp (61) faces the lifting plate (5) to provide supplemental lighting for the seedling trays on the lifting plate (5).

8. A high-efficiency crop seed cultivation device according to claim 6 or 7, characterized in that, The detection component is a distance sensor connected to the control center. The distance sensor is fixedly connected to the fixed plate (2) and emits a detection signal vertically downward. The distance sensor is used to detect the distance between the seedling crown on the seedling tray and the fixed plate (2). The control center controls the lifting plate (5) to rise and fall according to the detected distance between the seedling crown and the fixed plate (2) so that the seedling crown and the spray component (7) or the light component (6) maintain a preset working distance. The control center controls the spray component (7) to spray or the light component (6) to supplement light.

9. The high-efficiency crop seed cultivation device according to claim 8, characterized in that, The lighting components (6) and the spraying components (7) are distributed along the circumference of the central axis (3) according to the required lighting duration and spraying frequency for the seedlings.

10. The high-efficiency crop seed cultivation device according to claim 1, characterized in that, The body (1) has several support legs (30) below it. Each support leg (30) is fixedly connected to the body (1). The bottom of the body (1) is provided with a rotary drive (20) for driving the central shaft (3) to rotate. The rotary drive (20) is fixedly connected to the bottom of the body (1).

Images