Adjustable seed cultivation device for agricultural planting

Abstract

The invention belongs to the technical field of agricultural planting, and provides an adjustable agricultural planting seed cultivation device which comprises a base, a plurality of wheels are symmetrically arranged at the bottom of the base, two stand columns are symmetrically arranged at the top of the base, and guide grooves are formed in the two stand columns; by means of transmission of the worm, the worm gear, the double lead screws and the conveying belt, the multiple layers of cultivation frames can be driven to synchronously ascend and descend so as to dynamically adjust the interlayer spacing, the spacing is reduced when seedlings are small in the early stage, the cultivation space is fully utilized, the situation that a site is idle is avoided, the spacing is widened when plants grow tall in the later stage, and the problem that growth is limited due to the fixed spacing is solved; the adjustable spacing can eliminate the shielding of the upper layer to the lower layer plants, optimize the ventilation and illumination conditions of the cultivation environment, reduce the occurrence of diseases, ensure the photosynthesis efficiency of the crops to stabilize the yield, and can adapt to the crops with different heights only by adjusting the spacing without replacing the whole set of equipment, thereby greatly improving the universality of the equipment, reducing the repeated investment of farmers, and reducing the cost. And the equipment investment return rate is effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of agricultural planting technology, specifically a seed cultivation device for regulated agricultural planting. Background Technology

[0002] Seed cultivation devices for agricultural planting are core specialized equipment in the seedling stage of agriculture, primarily providing a suitable growth environment from seed germination to seedling transplanting. They can hold the cultivation substrate and seeds, and assist in regulating key conditions such as light, water, and ventilation. Commonly found in greenhouses and seedling nurseries, they typically employ single- or multi-layer frame structures, often made of corrosion-resistant metal or durable plastic. By creating a stable growth environment, this device can improve seed germination rates and cultivate robust seedlings, laying the foundation for subsequent field planting. It is a crucial piece of equipment bridging seed treatment and field transplanting, suitable for the seedling needs of various crops such as grains, vegetables, and flowers.

[0003] However, traditional seed cultivation devices for agricultural planting mostly adopt a fixed-spacing frame design, resulting in low space utilization. In the early stages of seed germination and when seedlings are small, a large amount of space between the frames is left unused, leading to wasted cultivation space. Later, as the plants grow taller, the fixed spacing cannot be widened, which not only restricts plant growth but also causes upper and lower layers of plants to shade each other, obstructing ventilation, causing uneven lighting, and resulting in poor air circulation and humidity accumulation. At the same time, insufficient light and ventilation affect crop photosynthesis, ultimately leading to a significant reduction in cultivation yield. In addition, the fixed spacing is only suitable for crops of a specific height. If it is necessary to switch to planting taller or shorter varieties, the spacing of the frame cannot be adjusted, and the entire cultivation equipment must be replaced. This results in poor equipment versatility, requiring growers to repeatedly invest in purchasing different devices, leading to low return on investment and making it difficult to meet the needs of diversified planting in modern agriculture.

[0004] To address the problems raised in the background art, those skilled in the art have proposed an adjustable seed cultivation device for agricultural planting.

[0005] The information disclosed above in this background section is only for enhancing the understanding of the background technology of this invention, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides an adjustable seed cultivation device for agricultural planting, which solves the problems of existing seed cultivation devices for agricultural planting, which mostly adopt a fixed-spacing frame design, resulting in poor space utilization, low yield, and poor versatility.

[0007] To achieve the above objectives, the present invention provides an adjustable seed cultivation device for agricultural planting, comprising a base, a plurality of wheels symmetrically arranged at the bottom of the base, two columns symmetrically arranged at the top of the base, each column having a guide groove, and a base at the top of each column, with a sunshade between the two bases, a plurality of vertically distributed sliders arranged in each of the two guide grooves, each slider having a connecting shaft, a cultivation frame arranged between every two symmetrical connecting shafts, each cultivation frame having a pull plate symmetrically arranged, a cultivation tray arranged in each cultivation frame, and an adjustment component arranged on the columns, the adjustment component being used to drive the plurality of cultivation frames to slide in the guide grooves via the sliders;

[0008] The adjusting assembly includes two lead screws rotatably connected to two columns, each lead screw having a connecting seat. Multiple sliders in two guide grooves are threadedly connected to the two lead screws and arranged symmetrically. A conveyor belt is sleeved between the two connecting seats. A worm gear is provided on one side of the lead screw. Two side plates are symmetrically arranged on the side of the base, and a worm is rotatably connected to the two side plates. The worm and the worm gear mesh. A rocker arm is provided at the end of the worm. A locking member is provided on both columns to lock the sliders in the guide grooves.

[0009] Preferably, the bottom of the cultivation tray has multiple holes, and the cultivation tray is provided with a drainage filter layer, a nutrient substrate layer and a planting layer from bottom to top.

[0010] Preferably, the locking component includes a rack symmetrically arranged on the inner side of the column, two L-shaped locking plates symmetrically rotatably connected to the top of the slider, two first elastic elements symmetrically arranged between the two L-shaped locking plates, a locking block fixedly connected to one side of the L-shaped locking plate, and a locking groove plate fixedly connected to the other side of the L-shaped locking plate.

[0011] Preferably, the ends of the two L-shaped clamping plates are respectively engaged in the teeth of the two racks, and the two ends of the first elastic member are respectively connected to the two L-shaped clamping plates, and the clamping block and the clamping slot plate are adapted to each other.

[0012] Preferably, each of the connecting shafts is provided with a sun-facing component, the sun-facing component including a collar sleeved on the connecting shaft, a vertical plate fixedly connected to the collar, and a cylindrical pin fixedly connected to the vertical plate.

[0013] Preferably, the sun-facing component further includes an annular groove and a circular hole formed on the side of the cultivation frame.

[0014] Preferably, the cylindrical pin is engaged in the circular hole, and there are two of each of the upright plate and the cylindrical pin, which are arranged symmetrically. There are multiple circular holes, which are evenly distributed around the circumference.

[0015] Preferably, each of the cultivation frames and its internal cultivation trays are symmetrically provided with two disassembly and assembly components. Each disassembly and assembly component includes an insertion hole at the bottom of the cultivation frame, a receiving tube inserted into the side of the cultivation tray, a fixing ring fixedly connected inside the receiving tube, a pressing rod inserted into the receiving tube, and a conical block fixedly connected to one end of the pressing rod inside the receiving tube.

[0016] Preferably, the disassembly and assembly assembly further includes a second elastic element disposed between the fixing ring and the pressure rod, and the receiving cylinder is provided with a sliding groove, in which a push block is slidably connected.

[0017] Preferably, the receiving cylinder is inserted into the insertion hole, the two ends of the second elastic element are respectively connected to the fixing ring and the pressing rod, the side of the conical block abuts against the side of the push block, and two slide grooves and two push blocks are provided and arranged symmetrically.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This invention, through the setting of an adjustment component, relies on the transmission of worm gear, worm wheel, double lead screw and conveyor belt to drive the multi-layer cultivation frame to rise and fall synchronously to dynamically adjust the layer spacing. When the seedlings are small in the early stage, the spacing is reduced to make full use of the cultivation space and avoid idle space. When the plants grow taller in the later stage, the spacing is widened, which completely solves the problem of growth restriction caused by fixed spacing. At the same time, the adjustable spacing can eliminate the shading of the upper layer to the lower layer of plants, optimize the ventilation and light conditions of the cultivation environment, reduce the occurrence of diseases, and ensure the photosynthetic efficiency of crops to stabilize yield. In addition, there is no need to replace the entire set of equipment. It can be adapted to crops of different heights by simply adjusting the spacing, which greatly improves the versatility of the equipment, reduces the repeated investment of growers, effectively improves the return on investment of equipment, and fully meets the needs of intensive and diversified cultivation in modern agriculture.

[0020] 2. This invention utilizes the rotational engagement of the collar and the circular groove, combined with the elastic upright plate driving the cylindrical pin to engage different circular holes, to achieve multi-angle fixation of the cultivation frame. It allows for flexible adjustment of the seedling orientation according to the direction of sunlight, completely eliminating the shading of the lower layer by the upper cultivation frame, ensuring that seedlings in each layer receive sufficient light, guaranteeing uniform and efficient photosynthesis. This effectively improves the uneven growth rate and vigor of seedlings caused by differences in light intensity. Furthermore, the entire adjustment process requires no tools; it can be completed simply by manually moving the upright plate, making it convenient to operate. It adapts to changes in light intensity at different times within the greenhouse, further improving seedling quality and uniformity, laying the foundation for unified growth after transplanting.

[0021] 3. This invention uses a downward-pressing rod to move a conical block downward, converting vertical force into horizontal contraction force of the push block, achieving unlocking with a press. No screws need to be removed or clips pried open, and the entire process is tool-free. A single person can quickly complete tray loading and unloading, significantly shortening tray loading and unloading time and avoiding the risk of tools damaging seedlings in traditional operations. It is particularly suitable for transplanting in batch seedling cultivation, significantly improving transplanting efficiency. Furthermore, after releasing the downward-pressing rod, the second elastic element can automatically reset and lock the components, ensuring a reliable and stable structure without additional fixing steps. This reduces the labor intensity of operators while ensuring the stability of the cultivation tray during the cultivation process, meeting the high-efficiency needs of modern large-scale seedling cultivation.

[0022] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an adjustable seed cultivation device for agricultural planting according to an embodiment of the present invention;

[0024] Figure 2 This is a cross-sectional view of an adjustable seed cultivation device for agricultural planting according to an embodiment of the present invention;

[0025] Figure 3 This is a cross-sectional view of a seed cultivation tray for an adjustable agricultural planting seed cultivation device according to an embodiment of the present invention;

[0026] Figure 4 This is a partial structural schematic diagram of the regulating component of an adjustable seed cultivation device for agricultural planting according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of a locking component of an adjustable seed cultivation device for agricultural planting according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of a sun-facing component of an adjustable seed cultivation device for agricultural planting according to an embodiment of the present invention;

[0029] Figure 7 This is a cross-sectional view of the disassembly and assembly components of an adjustable seed cultivation device for agricultural planting according to an embodiment of the present invention.

[0030] Figure 8 This is an exploded view of the disassembly and assembly components of an adjustable agricultural seed cultivation device according to an embodiment of the present invention.

[0031] In the diagram: 1. Base; 11. Wheel; 2. Column; 21. Guide groove; 22. Base; 3. Sunshade; 4. Slider; 41. Connecting shaft; 5. Cultivation frame; 51. Pull plate; 6. Cultivation tray; 61. Hole; 62. Drainage filter layer; 63. Nutrient substrate layer; 64. Planting layer; 7. Adjustment component; 71. Lead screw; 711. Connecting seat; 72. Conveyor belt; 73. Worm gear; 74. Side plate; 75. Worm; 76. Rocker arm 77. Locking component; 771. Rack; 772. L-shaped retaining plate; 773. First elastic element; 774. Retaining block; 775. Retaining groove plate; 8. Sun-facing component; 81. Collar; 82. Vertical plate; 83. Cylindrical pin; 84. Circular groove; 85. Circular hole; 9. Assembly / disassembly component; 91. Insertion hole; 92. Receiving cylinder; 921. Fixing ring; 93. Downward pressure rod; 94. Conical block; 95. Second elastic element; 96. Slide groove; 97. Push block. Detailed Implementation

[0032] 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. It should be noted that the accompanying drawings are schematic and not illustrated to scale. For clarity and convenience, the relative sizes and proportions of the parts shown in the drawings have been exaggerated or reduced in size. Any size is only exemplary and not limiting.

[0033] Example 1:

[0034] Please see Figure 1 - Figure 8As shown, an adjustable seed cultivation device for agricultural planting includes a base 1. Multiple wheels 11 are symmetrically arranged at the bottom of the base 1. Two uprights 2 are symmetrically arranged at the top of the base 1. Each upright 2 has a guide groove 21, and a base 22 is provided at the top of each upright 2. A sunshade 3 is arranged between the two bases 22. Multiple vertically distributed sliders 4 are arranged in each of the two guide grooves 21. Each slider 4 has a connecting shaft 41. A cultivation frame 5 is arranged between every two symmetrical connecting shafts 41. Each cultivation frame 5 has a pull plate 51 symmetrically arranged. A cultivation tray 6 is provided inside each cultivation frame 5. An adjustment component 7 is provided on the uprights 2. The adjustment component 7 is used to drive the multiple cultivation frames 5 to slide in the guide grooves 21 via the sliders 4. The base 1 is made of rigid material. Its top is used to fix two symmetrically distributed columns 2, and its bottom is fitted with wheels 11. It also stably supports all upper components such as the adjustment assembly 7 and the cultivation frame 5, ensuring that the entire device will not tilt or shake during use, providing stable structural support for seed cultivation. The wheels 11 are symmetrically arranged at the bottom of the base 1 for flexible movement of the entire device. The columns 2 are two symmetrically distributed rigid rods, forming the skeleton of the device. Guide grooves 21 are opened on the inner side of the columns 2 for installing sliders 4 and lead screws 71. A fixed base 22 is fixed at the top to support the sunshade 3. The guide grooves 21 are elongated grooves opened on the inner side of the columns 2, with cross-sectional dimensions adapted to the sliders 4, providing vertical sliding for the sliders 4. The track restricts the horizontal deviation of the slider 4, ensuring that the slider 4 keeps the cultivation frame 5 stable when it is raised and lowered, and preventing the cultivation frame 5 from tilting and causing the cultivation tray 6 to slip. The base 22 is fixed to the top of the two columns 2 and provides a hinge mounting point for the sunshade 3, allowing the sunshade 3 to rotate 0°-90° around the base 22. The sunshade 3 is made of lightweight and aging-resistant materials, such as aluminum alloy plate or PP plastic plate, and is installed between the two bases 22. Its function is to adjust the degree of shading according to the light requirements of seed cultivation. The slider 4 is used to transmit power. When the lead screw 71 rotates, the slider 4 moves vertically along the guide groove 21 through the threaded engagement, and then drives the cultivation frame 5 to rise and fall synchronously through the connecting shaft 41. The connecting shaft 41 is a cylindrical rod, one end of which is fixedly connected to the slider 4. The other end is rotatably connected to the side of the cultivation frame 5, used to transmit the lifting power of the slider 4 to the cultivation frame 5, so that the cultivation frame 5 moves synchronously with the slider 4, and serves as the rotation fulcrum for adjusting the angle of the cultivation frame 5, providing a basis for adjusting the angle of the sun-facing component 8. The cultivation frame 5 has a rectangular frame structure, and the inside is used to place the cultivation tray 6, which provides a fixed bearing space for the cultivation tray 6. The pull plate 51 is symmetrically fixed on the two side frames of the cultivation frame 5. When the pull plate 51 is opened, ventilation is achieved inside the cultivation frame 5. The cultivation tray 6 has a rectangular groove structure, placed inside the cultivation frame 5, and is the component that directly carries the seeds and cultivation substrate. Its function is to provide an independent cultivation space for seed germination and seedling growth, which facilitates the classification and cultivation of different batches or different types of seeds.Simultaneously, the assembly / disassembly component 9 enables quick placement and removal, facilitating subsequent transplanting or substrate replacement. The adjustment component 7, through purely mechanical transmission, converts the operator's manual power into the vertical movement of the cultivation frame 5, achieving synchronous spacing adjustment of the multi-layer cultivation frames 5. Meanwhile, the locking component 77 ensures stable positioning after adjustment.

[0035] The adjusting assembly 7 includes two lead screws 71 rotatably connected to two columns 2, each lead screw 71 having a connecting seat 711. Multiple sliders 4 in two guide grooves 21 are threadedly connected to the two lead screws 71 and arranged symmetrically. A conveyor belt 72 is fitted between the two connecting seats 711. A worm gear 73 is provided on one lead screw 71. Two side plates 74 are symmetrically arranged on the side of the base 1, and worm gears 75 are rotatably connected to the two side plates 74. The worm gears 75 and worm gears 73 mesh. The worm gear 75 has a rocker arm 76 at its end, and both columns 2 have locking components 77. The locking components 77 are used to lock the slider 4 in the guide groove 21. When the lead screw 71 rotates, it drives the slider 4 to rise and fall along the guide groove 21 through the threaded engagement, thereby driving the cultivation frame 5 to move. The connecting seat 711 is used to provide an installation point for the conveyor belt 72. The connecting seat 711 of the two lead screws 71 is connected through the conveyor belt 72 to ensure that when one lead screw 71 rotates, the other lead screw 71 can rotate simultaneously. The step rotation prevents the cultivation frame 5 from tilting due to inconsistent lifting speeds of the sliders 4 on both sides. The conveyor belt 72 is a rubber synchronous belt, sleeved on the outside of the two connecting seats 711, used to transmit power. The worm gear 73 meshes with the worm 75, its function is to change the direction of power transmission and reduce speed and increase torque, converting the horizontal rotational power of the worm 75 into the vertical rotational power of the lead screw 71. The side plate 74 consists of two symmetrically distributed steel plates, vertically fixed to the side of the base 1, used to provide rotational support for the worm 75. The worm 75 meshes with the worm gear 73 to transmit manual power. The rocker arm 76 is fixed to the end of the worm 75. The operator drives the worm 75 to rotate by rotating the rocker arm 76. No tools are needed, and a single person can complete the adjustment operation, reducing labor intensity and improving adjustment efficiency. The locking component 77 is used to restrict the slider 4 from sliding along the guide groove 21 after the cultivation frame 5 is adjusted to the target position, preventing the cultivation frame 5 from falling due to device vibration, accidental collision or failure of the lead screw 71's self-locking, ensuring safe use.

[0036] Specifically, the bottom of the cultivation tray 6 has multiple holes 61. Inside the cultivation tray 6, from bottom to top, are arranged a drainage filter layer 62, a nutrient substrate layer 63, and a planting layer 64. The holes 61 are used to drain excess irrigation water from the cultivation tray 6, preventing water accumulation in the substrate that could cause seed or seedling root rot. They also promote air circulation within the substrate, providing sufficient oxygen to the roots and meeting the seed's respiration needs. The drainage filter layer 62, made of non-woven fabric and quartz sand, is laid at the bottom of the cultivation tray 6, directly covering the holes 61. Its function is to filter impurities in the cultivation substrate, such as undecomposed organic matter and fine particles, preventing impurities from clogging the bottom holes 61 and ensuring drainage. To ensure stability and prevent substrate loss with water flow, the nutrient substrate layer 63 is located above the drainage filter layer 62. It is composed of humus, perlite, vermiculite, and other materials mixed in a specific ratio. Its function is to provide sufficient nutrients, such as nitrogen, phosphorus, potassium, and trace elements, for seed germination and seedling growth. At the same time, its loose structure maintains good water retention and aeration, which is suitable for the growth requirements of seed cultivation. The planting layer 64 is laid on top of the nutrient substrate layer 63 and uses fine soil or seedling-specific substrate. Its function is to directly contact the seeds, provide a stable implantation environment for the seeds, prevent the seeds from getting stuck in coarse particles in the substrate and making them difficult to germinate, reduce water evaporation, maintain stable humidity around the seeds, and improve the germination rate.

[0037] Furthermore, the locking component 77 includes racks 771 symmetrically arranged inside the column 2. Two L-shaped locking plates 772 are symmetrically rotatably connected to the top of the slider 4. Two first elastic elements 773 are symmetrically arranged between the two L-shaped locking plates 772. A locking block 774 is fixedly connected to one L-shaped locking plate 772, and a locking groove plate 775 is fixedly connected to the other L-shaped locking plate 772. The racks 771 are symmetrically fixed inside the column 2, with teeth evenly distributed along the length of the guide groove 21, for use in cooperating with the L-shaped locking plates 772 to achieve positioning. The vertical movement of the slider 4 is restricted by the teeth of the racks 771 being engaged at the ends of the L-shaped locking plates 772. The L-shaped locking plates 772 are two symmetrically distributed bent steel plates rotatably connected to the top of the slider 4. Under the pushing force of the first elastic elements 773, their ends are always engaged with the teeth of the racks 771, restricting the movement of the slider 4. When the L-shaped locking plate 772 is engaged, its end disengages from the teeth, releasing the lock and allowing the slider 4 to move up and down. The first elastic element 773 is a compression spring, with both ends connected to the inner sides of the two L-shaped locking plates 772 respectively, to provide thrust. It constantly pushes the ends of the two L-shaped locking plates 772 towards the rack 771, ensuring that the L-shaped locking plates 772 can stably engage with the teeth of the rack 771 when there is no external force, thus achieving automatic locking. The locking block 774 is a protruding structure, fixed to the inner side of one L-shaped locking plate 772, and cooperates with the slot plate 775 to achieve temporary unlocking and fixing. The slot plate 775 is a plate-like structure with a groove, fixed to the inner side of the other L-shaped locking plate 772. The groove size is adapted to the locking block 774, and cooperates with the locking block 774 to engage with the groove, temporarily fixing the L-shaped locking plate 772 in the unlocked state, freeing the operator's hands and improving the convenience of adjustment.

[0038] Furthermore, the ends of the two L-shaped clamping plates 772 are respectively engaged in the teeth of the two racks 771, and the two ends of the first elastic member 773 are respectively connected to the two L-shaped clamping plates 772, and the clamping block 774 and the clamping slot plate 775 are adapted to each other.

[0039] As described above, the operator holds the two L-shaped locking plates 772 at the top of the same slider 4 with both hands and squeezes them inward, causing the two L-shaped locking plates 772 to rotate around the pivot point. Their ends disengage from the teeth of the rack 771. Simultaneously, the locking block 774 of one L-shaped locking plate 772 engages with the groove of the locking plate 775 of the other L-shaped locking plate 772, temporarily fixing the L-shaped locking plate 772 in the unlocked state. No further squeezing is required. Following this procedure, all locking components 77 of the slider 4 are unlocked. The operator stands to one side of the device and rotates the rocker arm 76 at the end of the worm 75. The rocker arm 76 drives the worm 75 to rotate around the side plate 74. The worm 75 meshes with the worm wheel 73 at the lower end of the lead screw 71, converting the horizontal rotational power into the vertical rotational power of the lead screw 71. The lead screw 75 connected to the worm wheel 73... 1. During rotation, the connecting seat 711 and the conveyor belt 72 drive the lead screw 71 on the other side to rotate synchronously. The speed and direction are completely consistent. The two lead screws 71 rotate synchronously, and through the threaded engagement, they drive all sliders 4 to move vertically along the guide groove 21 of the column 2. The sliders 4 drive the cultivation frame 5 to rise and fall synchronously through the connecting shaft 41, realizing the spacing adjustment of the multi-layer cultivation frame 5. After adjusting to the target spacing, the operator manually moves the L-shaped card plate 772 on the top of the slider 4, so that the card block 774 disengages from the groove of the card slot plate 775. Under the pushing force of the first elastic element 773, the two L-shaped card plates 772 reset to the outside, and the ends re-engage into the corresponding teeth of the rack 771, restricting the movement of the slider 4. This step completes the locking of all sliders 4, ensuring the stability of the cultivation frame 5.

[0040] Example 2:

[0041] Please see Figure 6 As shown, this embodiment is basically the same as the previous embodiment, except that each connecting shaft 41 is provided with a sun-facing component 8. The sun-facing component 8 includes a collar 81 sleeved on the connecting shaft 41, a vertical plate 82 fixedly connected to the collar 81, and a cylindrical pin 83 fixedly connected to the vertical plate 82. The sun-facing component 8 is used to adjust the angle of the cultivation frame 5, so that the seeds or seedlings in the cultivation tray 6 can adjust their orientation according to the direction of sunlight, maximizing the use of light for photosynthesis and improving the quality of seedling cultivation. The collar 81 is a ring-shaped structure, fixedly sleeved on the connecting shaft 41, and used for... To limit the axial movement of the culture frame 5 along the connecting shaft 41 and prevent the culture frame 5 from shifting during angle adjustment, the upright plate 82 is used to drive the cylindrical pin 83 to lock or unlock. The upright plate 82 is elastic and can deform when manually moved, causing the cylindrical pin 83 to disengage from the round hole 85. After being released, it returns to its original shape and causes the cylindrical pin 83 to engage with the round hole 85. No additional locking components are required. The cylindrical pin 83 is fixed to the end of the upright plate 82. By engaging with different round holes 85 on the side of the culture frame 5, the rotation angle of the culture frame 5 is limited, achieving multi-angle fixation and ensuring angle stability after adjustment.

[0042] Specifically, the sun-facing component 8 also includes an annular groove 84 and a circular hole 85 on the side of the cultivation frame 5. The annular groove 84 provides a rotation track for the collar 81 and the two cylindrical pins 83. The circular hole 85 consists of multiple circular holes evenly distributed on the side of the cultivation frame 5 along the circumference of the annular groove 84. The size of the holes is adapted to the cylindrical pins 83 and serves as an angle positioning point. By inserting the cylindrical pins 83 into the circular holes 85 at different positions, the cultivation frame 5 can be fixed at different tilt angles to adapt to the light requirements of different sunlight directions, such as east in the morning and west in the afternoon.

[0043] Furthermore, the cylindrical pin 83 is engaged in the circular hole 85. There are two of each of the upright plate 82 and the cylindrical pin 83, which are arranged symmetrically. There are multiple circular holes 85, which are evenly distributed around the circumference.

[0044] As described above, the operator pinches the two elastic upright plates 82 on the side of the cultivation frame 5 with their fingers and gently pushes them outward using the elastic deformation of the upright plates 82. The upright plates 82 drive the cylindrical pins 83 at their ends to disengage from the round holes 85 on the side of the cultivation frame 5, releasing the angle lock. The operator then pulls the cultivation frame 5 to rotate it around the connecting shaft 41, adjusting it to the target tilt angle, such as tilting it 15° eastward in the morning and 15° westward in the afternoon. After adjustment, the operator releases their fingers from the upright plates 82, and the upright plates 82 return to their elastic deformation, causing the cylindrical pins 83 to engage in the corresponding round holes 85 on the side of the cultivation frame 5, restricting the rotation of the cultivation frame 5 and completing the angle fixation. Following this procedure, the angle of each layer of the cultivation frame 5 can be adjusted separately to achieve independent light tracking for each layer.

[0045] Example 3:

[0046] Please see Figure 7 - Figure 8As shown, this embodiment is basically the same as the previous embodiment, except that two disassembly and assembly components 9 are symmetrically arranged between each cultivation frame 5 and its internal cultivation tray 6. Each disassembly and assembly component 9 includes an insertion hole 91 at the bottom of the cultivation frame 5, a receiving tube 92 inserted into the side of the cultivation tray 6, a fixing ring 921 fixedly connected inside the receiving tube 92, and a pressing rod 93 inserted inside the receiving tube 92. A conical block 94 is fixedly connected to one end of the pressing rod 93 inside the receiving tube 92. The disassembly and assembly components 9 are used to achieve quick assembly and disassembly of the cultivation tray 6 and the cultivation frame 5 without removing screws or clips, reducing the labor intensity of operators and facilitating seed transplanting or substrate replacement. The insertion hole 91 is a circular hole at the bottom of the cultivation frame 5, its size adapted to the receiving tube 92, and its function is to provide an insertion positioning point for the receiving tube 92. Insertion is achieved by inserting the receiving tube 92 into the tray. Hole 91 enables the initial connection between the cultivation tray 6 and the cultivation frame 5, restricting the horizontal movement of the cultivation tray 6. The receiving cylinder 92 is a tubular structure that can be inserted into the insertion hole 91 of the cultivation frame 5 to support other parts of the disassembly assembly 9, and also serves as a connecting carrier between the cultivation tray 6 and the cultivation frame 5. The fixing ring 921 is an annular structure that is fixed inside the receiving cylinder 92 to support the second elastic element 95. When the operator presses down the pressure rod 93, it drives the conical block 94 to move down, triggering the push block 97 to retract, releasing the lock between the cultivation tray 6 and the cultivation frame 5. After being released, it resets under the action of the second elastic element 95 and relocks. The conical block 94 is fixed at the bottom end of the pressure rod 93, and its outer inclined surface is adapted to the inner inclined surface of the push block 97 to convert the vertical downward movement of the pressure rod 93 into the horizontal movement of the push block 97 through the contact of the inclined surfaces.

[0047] Specifically, the disassembly and assembly assembly 9 also includes a second elastic element 95 disposed between the fixing ring 921 and the pressing rod 93. A groove 96 is provided on the receiving cylinder 92, and a push block 97 is slidably connected in the groove 96. The second elastic element 95 is a compression spring, sleeved on the outside of the pressing rod 93, with its two ends connected to the bottom ends of the fixing ring 921 and the pressing rod 93, respectively, to provide thrust for the pressing rod 93. The groove 96 is a long strip-shaped groove opened on the side wall of the receiving cylinder 92, distributed in the horizontal direction, and its size is adapted to the push block 97. Its function is to provide a sliding track for the push block 97, restricting the push block 97 to extend and retract only in the horizontal direction. The push block 97 slides in the groove 96, with an inner inclined surface adapted to the conical block 94, and can extend out of the receiving cylinder 92. When extended, it is locked at the bottom of the cultivation frame 5 to fix the cultivation tray 6 to the cultivation frame 5. When retracted, it is unlocked, allowing the cultivation tray 6 to be removed.

[0048] Furthermore, the receiving cylinder 92 is inserted into the insertion hole 91, the two ends of the second elastic element 95 are respectively connected to the fixing ring 921 and the pressing rod 93, the side of the conical block 94 abuts against the side of the push block 97, and there are two of each of the sliding groove 96 and the push block 97, which are arranged symmetrically.

[0049] As described above, the operator presses the pressure rod 93 at the top of the receiving cylinder 92 on the side of the cultivation tray 6 with their finger. The pressure rod 93 moves downward along the receiving cylinder 92, compressing the second elastic element 95. The pressure rod 93 drives the conical block 94 at the bottom to move downward simultaneously. The outer inclined surface of the conical block 94 contacts the inner inclined surface of the push block 97. Through the force of the inclined surface, the push block 97 is pushed to retract along the slide groove 96 into the receiving cylinder 92, releasing the lock. While maintaining the state of pressing the pressure rod 93, the operator uses their other hand to lift the cultivation tray 6 upward, so that the receiving cylinder 92 is disengaged from the insertion hole 91 of the cultivation frame 5. The tray can then be removed for transplanting or substrate replacement. Align the cultivation tray 6 containing the new substrate and seeds with the internal space of the cultivation frame 5, aligning the receiving tube 92 on the side of the tray with the insertion hole 91 at the bottom of the cultivation frame 5. Gently press the tray down to insert the receiving tube 92 into the insertion hole 91. Release the pressure on the lowering rod 93, and the second elastic element 95 will return to its original shape, pushing the lowering rod 93 upward to reset. At the same time, the conical block 94 will move upward. After the conical block 94 moves upward, under the pushing force of the conical block 94, the push block 97 extends outward along the sliding groove 96 to the outside of the receiving tube 92, locking itself at the bottom of the cultivation frame 5 and cooperating with the side of the cultivation tray 6 to achieve automatic locking between the cultivation tray 6 and the cultivation frame 5, thus completing the installation.

[0050] 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 type of adjustable seed cultivation device for agricultural planting, characterized in that: The system includes a base (1), on which multiple wheels (11) are symmetrically arranged at the bottom. Two columns (2) are symmetrically arranged at the top of the base (1). Guide grooves (21) are provided on both columns (2), and bases (22) are provided on the top of both columns (2). A sunshade (3) is provided between the two bases (22). Multiple vertically distributed sliders (4) are provided in both guide grooves (21). A connecting shaft (41) is provided on each slider (4). A cultivation frame (5) is provided between every two symmetrical connecting shafts (41). A pull plate (51) is symmetrically arranged on each cultivation frame (5). A cultivation tray (6) is provided in each cultivation frame (5). An adjustment component (7) is provided on the column (2). The adjustment component (7) is used to drive multiple cultivation frames (5) to slide in the guide grooves (21) through the sliders (4). The adjustment assembly (7) includes two lead screws (71) rotatably connected to two columns (2), each lead screw (71) having a connecting seat (711), and multiple sliders (4) in the two guide grooves (21) being threadedly connected to the two lead screws (71) and arranged symmetrically. A conveyor belt (72) is sleeved between the two connecting seats (711), and a worm gear (73) is provided on one side of the lead screw (71). Two side plates (74) are symmetrically arranged on the side of the base (1), and a worm (75) is rotatably connected to the two side plates (74). The worm (75) and the worm gear (73) mesh, and a rocker arm (76) is provided at the end of the worm (75). A locking member (77) is provided on each of the two columns (2), and the locking member (77) is used to lock the slider (4) in the guide groove (21).

2. The adjustable seed cultivation device for agricultural planting according to claim 1, characterized in that: The bottom of the cultivation tray (6) has multiple holes (61), and the cultivation tray (6) is provided with a drainage filter layer (62), a nutrient substrate layer (63) and a planting layer (64) from bottom to top.

3. The adjustable seed cultivation device for agricultural planting according to claim 1, characterized in that: The locking component (77) includes a rack (771) symmetrically arranged inside the column (2), and two L-shaped plates (772) symmetrically rotatably connected to the top of the slider (4). Two first elastic elements (773) are symmetrically arranged between the two L-shaped plates (772). A locking block (774) is fixedly connected to one side of the L-shaped plate (772), and a slot plate (775) is fixedly connected to the other side of the L-shaped plate (772).

4. The adjustable seed cultivation device for agricultural planting according to claim 3, characterized in that: The ends of the two L-shaped clamping plates (772) are respectively engaged in the teeth of the two racks (771), and the two ends of the first elastic member (773) are respectively connected to the two L-shaped clamping plates (772). The clamping block (774) and the clamping slot plate (775) are adapted to each other.

5. The adjustable seed cultivation device for agricultural planting according to claim 1, characterized in that: Each of the connecting shafts (41) is provided with a sun-facing component (8), the sun-facing component (8) includes a collar (81) sleeved on the connecting shaft (41), a vertical plate (82) is fixedly connected to the collar (81), and a cylindrical pin (83) is fixedly connected to the vertical plate (82).

6. The adjustable seed cultivation device for agricultural planting according to claim 5, characterized in that: The sun-facing component (8) also includes an annular groove (84) and a circular hole (85) on the side of the cultivation frame (5).

7. The adjustable seed cultivation device for agricultural planting according to claim 6, characterized in that: The cylindrical pin (83) is engaged in the circular hole (85). There are two of each of the upright plate (82) and the cylindrical pin (83) arranged symmetrically. There are multiple circular holes (85) evenly distributed around the circumference.

8. The adjustable seed cultivation device for agricultural planting according to claim 1, characterized in that: Two disassembly and assembly components (9) are symmetrically arranged between each of the cultivation frames (5) and the cultivation trays (6) inside them. The disassembly and assembly components (9) include an insertion hole (91) at the bottom of the cultivation frame (5). A receiving tube (92) is inserted into the side of the cultivation tray (6). A fixing ring (921) is fixedly connected inside the receiving tube (92). A pressing rod (93) is inserted into the receiving tube (92). A conical block (94) is fixedly connected to one end of the pressing rod (93) inside the receiving tube (92).

9. The adjustable seed cultivation device for agricultural planting according to claim 8, characterized in that: The disassembly and assembly assembly (9) also includes a second elastic element (95) disposed between the fixing ring (921) and the pressure rod (93), and a groove (96) is provided on the receiving cylinder (92), and a push block (97) is slidably connected in the groove (96).

10. The adjustable seed cultivation device for agricultural planting according to claim 9, characterized in that: The receiving cylinder (92) is inserted into the insertion hole (91). The two ends of the second elastic element (95) are connected to the fixing ring (921) and the pressing rod (93) respectively. The side of the conical block (94) abuts against the side of the push block (97). The sliding groove (96) and the push block (97) are provided in two symmetrical arrangements.

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