A high-efficiency seed pelleting point seeder for laboratory use and a soil inserting conveyor matched with the same

Abstract

The utility model discloses a kind of high-efficiency seed point device of pelletizing seed for laboratory and the earth inserting conveyor matched therewith, and point device includes point seed component, sowing depth catheter component and baffle;Point seed component includes point seed frame, point seed plate and handle assembly;The number of point seed plate is two or more, each point seed plate is equipped with the point seed hole of array distribution, the aperture of point seed hole on different point seed plate is different, each point seed plate can be movably connected in point seed frame bottom;Handle assembly is connected in point seed frame top;Sowing depth catheter component includes connecting border, sowing depth plate and catheter;Connecting border is movably connected in point seed frame bottom;Sowing depth plate is connected in connecting border bottom, sowing depth plate is equipped with the sowing depth hole of array distribution, and the bottom of each sowing depth hole is butt joint with catheter;Point seed hole and sowing depth hole one-to-one correspondence, point seed hole and corresponding sowing depth hole concentric arrangement;Connecting border bottom is equipped with baffle insertion port, baffle is movably inserted from baffle insertion port, and located between point seed plate and sowing depth plate.

Description

Technical Field

[0001] This utility model relates to a high-efficiency seed applicator for laboratory pelleted seeds and a soil delivery device used in conjunction with it, belonging to the field of pelleted seed applicator technology. Background Technology

[0002] In scientific research laboratory germination experiments and potted cultivation, precise sowing of pelleted seeds is crucial for the accuracy of experimental data and the quality of potted cultivation. Currently, the commonly used sowing methods in such scenarios are manual sowing with tweezers and sowing with a simple dropper.

[0003] Manually using tweezers to pick up seeds is one of the most common methods used by researchers. The procedure involves carefully picking up pelleted seeds with tweezers and placing them in a designated location on filter paper, agar-petal, germination box, or potting soil. Because pelleted seeds are typically small and have a smooth surface, they are prone to slipping or being damaged during handling, preventing proper germination and affecting the accuracy of experimental results and the success rate of potted plant cultivation. Furthermore, each seed picking and placement requires multiple steps, including "finding the seed - picking up - positioning - arranging / sequencing - placing," making the process cumbersome. In large-scale agar germination experiments or batch potted plant cultivation, each operation is extremely time-consuming. Even skilled operators struggle to complete a large number of seeding tasks in a short time, resulting in very low overall seeding efficiency. Prolonged, high-intensity manual operation leads to hand muscle fatigue, further reducing operational precision and significantly increasing the workload. Researchers are forced to spend a significant amount of energy on repetitive, mechanical seeding work, making it difficult to dedicate more time to core research and analysis. From the perspective of technological principles, this purely manual operation method lacks precise positioning and control mechanisms, relies entirely on manpower, and is difficult to meet the high precision and consistency requirements of seed sowing in scientific research experiments. Low-precision pellet seed sowing will make it difficult to count germination tests and achieve uniform seedling emergence in potted plant experiments, and it also cannot meet the needs of efficient operation in scientific research and small-scale planting scenarios.

[0004] The simple dropper seeding method utilizes the siphon principle of the dropper to draw pelleted seeds into the dropper head and then drip them onto the target location. While this method reduces hand contact to some extent, it still requires multiple manual operations and adjustments. When drawing seeds with a dropper, it's difficult to precisely control the amount drawn, potentially resulting in drawing multiple seeds at once or failing to draw any at all. Errors require researchers to spend extra time cleaning, re-drawing, and re-planting, significantly extending the overall seeding time. Furthermore, seeds and impurities easily remain at the dropper head, affecting subsequent seeding operations. The cleaning process is not only tedious but also requires interrupting the seeding process, disrupting workflow and further reducing efficiency. Moreover, each drawing and planting requires manual control of force and position; with a large number of seeding tasks, researchers must frequently repeat these operations, resulting in extremely high labor intensity. This is because the siphon principle of the dropper cannot provide stable and precise drawing and release force when dealing with pelleted seeds of varying sizes and weights, lacking targeted control over individual seeds, making seeding both time-consuming and manpower-intensive.

[0005] In summary, existing pellet seed sowing technology suffers from problems such as low operational efficiency, poor sowing accuracy, easy seed damage, and high manual labor requirements in germination experiments and potted plant applications in scientific research laboratories, and cannot meet the refined needs of scientific research and small-scale planting scenarios. Utility Model Content

[0006] This invention provides a high-efficiency seed applicator for laboratory pelleted seeds and a soil delivery device for use with it, which improves the accuracy and efficiency of seed applicatoring, avoids seed damage, and reduces manual labor.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A high-efficiency seed applicator for laboratory pelleted seeds includes: a seed applicator component, a seeding depth guide component, and a partition;

[0009] The seeding component includes a seeding frame, seeding plates, and a handle assembly. The seeding frame has a square frame structure, and there are two or more seeding plates. Each seeding plate has seeding holes arranged in an array. The diameter of the seeding holes on different seeding plates is different. Each seeding plate can be movably connected to the bottom of the seeding frame. The handle assembly is connected to the top of the seeding frame.

[0010] The seeding depth guide component includes a connecting frame, a seeding depth plate, and guide tubes; the connecting frame is movably connected to the bottom of the seeding frame; the seeding depth plate is connected to the bottom of the inner side of the connecting frame, and the seeding depth plate has seeding depth holes distributed in an array. The number of guide tubes is equal to the number of seeding depth holes and corresponds one-to-one. The guide tubes are connected to the bottom of the corresponding seeding depth holes, and the bottom of the guide tubes is pointed.

[0011] The number of seeding holes and the depth holes are equal and correspond one-to-one. The seeding holes and the corresponding depth holes are concentrically set. That is, when the high-efficiency seeder is in use, the seeding holes and their corresponding depth holes are vertically opposite each other and their axes (normal lines) coincide.

[0012] The bottom of the connecting frame is provided with a partition insertion port, through which the partition can be inserted (that is, the partition can be pulled out) and located between the seeding plate and the seeding depth plate.

[0013] The aforementioned laboratory pellet seed high-efficiency seed spotting device is used for experiments involving spotting seeds on the surface of culture media such as agar or sowing seeds in soil such as pots.

[0014] In this application, "square" includes both squares and rectangles. A square frame structure is a frame structure with a square cross-section and open top and bottom.

[0015] The above array distribution is also a matrix distribution.

[0016] The different seed-dyeing plates have different hole diameters to suit pelleted seeds of different sizes. To find a suitable pelleted seed with a different hole diameter, simply replace the seed-dyeing plate with the one that corresponds to the size of the hole.

[0017] The bottom of the aforementioned conduit is pointed to facilitate insertion into the soil. The pointed shape can be formed by obliquely cutting one or both sides of the bottom of the conduit.

[0018] When seeding on the surface of agar or other culture media, detach the seeding depth guide tube. The operator holds the handle assembly, places the seeding component on the petri dish, pours the pelleted seeds into the seeding frame, and gently shakes the dish. The seeds enter the seeding holes under gravity. Then, lift the seeding component upwards, and the seeds in the seeding holes fall onto the surface of the agar or other culture medium, completing one seeding operation. Move the seeder to the next area to be seeded and repeat the above steps until all seeding tasks are completed.

[0019] When used for sowing in soil, such as in pots, the sowing depth guide tube component needs to be installed. The operator holds the handle component and places the pelleted seed high-efficiency sowing device on the soil in the pot or greenhouse, etc., and pours the pelleted seeds into the sowing frame. A gentle shake allows the seeds to enter the sowing holes under gravity. At this point, the seeds are located in the sowing holes with their bottoms resting on the partition. Then, pressing down causes the guide tube to penetrate the soil to the designated depth. The partition is then removed, and the seeds in the sowing holes fall into the soil along the guide tube. The pelleted seed high-efficiency sowing device is then lifted until it detaches from the soil, completing one sowing cycle. The sowing device is moved to the next area to be sown, and the above steps are repeated until all sowing tasks are completed.

[0020] For ease of use, each seeding plate can be movably connected to the bottom of the seeding frame via a pull-out structure; the top of the outer side wall of the seeding frame is provided with two opposing outward-folding plates.

[0021] To save costs and simplify manufacturing, as a specific implementation, the bottom of the seeding frame has a pull-out opening, and the inner sidewalls of the seeding frame on both sides of the pull-out opening have pull-out grooves. The seeding plate slides into the pull-out grooves on both sides of the pull-out opening, forming a pull-out structure. The pull-out structure can also refer to existing pull-out structures.

[0022] For ease of use, the handle assembly includes a connecting cross, a support rod, and a grip cross arranged from bottom to top. One end of the support rod is perpendicularly connected to the center of the top of the connecting cross, and the other end is perpendicularly connected to the center of the bottom of the grip cross. The four ends of the connecting cross are respectively connected to the inner walls of the top four sides of the dotted frame. The outer side of the grip cross has an anti-slip texture. As is common knowledge, a cross-shaped structure will form four ends.

[0023] To improve the stability of the device, as a specific implementation scheme, a plug is provided at the bottom of the outer side of the seeding frame, and a vertical slot matching the plug is provided on the inner side of the connecting frame. The seeding frame is inserted from the top of the connecting frame and movably inserted into the inner side of the connecting frame, and the plug is inserted into the vertical slot that matches it.

[0024] For ease of use, the partition includes a horizontal plate, a vertical plate, and a handle. The vertical plate is vertically connected to one end of the horizontal plate, and the handle is connected to the outside of the vertical plate. The horizontal plate is inserted into the partition's insertion port and positioned between the seeding plate and the sowing depth plate, providing support and barrier for the seeds in the seeding holes on the seeding plate. When the guide tube reaches the designated depth and seeds need to fall, the handle is held, and the horizontal plate is pulled outward, allowing the seeds in the seeding holes to fall into the guide tube. The two sides of the horizontal plate slide against the inner walls of the connecting frame on both sides of the partition's insertion port. If grooves are provided on the inner walls of the connecting frame on both sides of the partition's insertion port, the two sides of the horizontal plate will slide into the grooves on both sides of the partition's insertion port. The outside of the vertical plate refers to the side of the vertical plate opposite to the seeding frame.

[0025] The aforementioned conduit and its corresponding deep-hole are concentrically arranged, meaning their axes coincide.

[0026] To facilitate the smooth sliding of seeds, the inner diameter of the vascular bundle and the diameter of the deep-seeding hole are both larger than the diameter of the seed-spotting hole on each seed-spotting plate.

[0027] One specific implementation scheme involves eight seed-dispensing plates. The seed-dispensing hole diameters on the eight seed-dispensing plates are as follows: 2.0-2.2mm (suitable for 1.5-2.0mm pelleted seeds); 2.5-2.7mm (suitable for 2.0-2.5mm pelleted seeds); 3.0-3.2mm (suitable for 2.5-3.0mm pelleted seeds); 3.5-3.7mm (suitable for 3.0-3.5mm pelleted seeds); 4.0-4.2mm (suitable for 3.5-4.0mm pelleted seeds); 4.5-4.7mm (suitable for 4.0-4.5mm pelleted seeds); 5.0-5.2mm (suitable for 4.5-5.0mm pelleted seeds); and 5.5-5.7mm (suitable for 5.0-5.5mm pelleted seeds).

[0028] As one specific implementation, each seeding board has 100 seeding holes. Of course, other numbers can be set according to the specific needs of the scenario.

[0029] To facilitate different sowing depths, there are two or more sowing depth guide pipe components. The connecting frame of each sowing depth guide pipe component can be movably connected to the bottom of the sowing frame. The partition can be movably inserted from the partition insertion port of the connecting frame on each sowing depth guide pipe component and is located between the sowing plate and the sowing depth plate. The guide pipes on each sowing depth guide pipe component have different lengths.

[0030] As one specific implementation scheme, there are three seeding depth catheter components, with catheter lengths of 10mm, 20mm and 30mm respectively; the wall thickness of the catheter is 0.5mm and the inner diameter is 5.6mm.

[0031] To facilitate disassembly and replacement, the inner side of the injection depth hole is provided with internal threads, and the top of the outer side of the guide tube is provided with external threads. The top of the guide tube is threadedly connected to the corresponding injection depth hole. This makes it easy to replace the damaged guide tube.

[0032] Of course, as another way to achieve this, the conduit can also be connected to the bottom of the corresponding depth hole by means of integral printing, welding (when the components are made of metal or other materials), or bonding.

[0033] As one specific implementation scheme, the aforementioned seeding components, connecting frames, seeding depth plates, and partitions are all made of medical-grade polylactic acid. The catheter can be made of medical-grade polylactic acid or metal tubing (such as stainless steel tubing, copper tubing, etc.).

[0034] The medical-grade polylactic acid used in this application is medical-grade polylactic acid with high hardness, such as Anhui Fengyuan FY601, Zhejiang Haizheng REVODE110, eSUNMed L-PLLA, Chengdu Nanding ND-PLLA, etc.

[0035] A soil-inserting conveyor, used in conjunction with the aforementioned high-efficiency seed applicator for laboratory pelleted seeds, includes a soil-inserting plate, soil-inserting tubes, and a pressing handle. The soil-inserting tubes are arranged in an array at the bottom of the soil-inserting plate. Each of the outermost soil-inserting tubes has two or more height notches distributed along the height direction (for easy observation from all sides) to mark the depth of the soil-inserting tubes inserted into the soil. The corresponding depth dimension can also be engraved on the height notches. The depth dimension is the distance from the bottom of the soil-inserting tube to the height notch. The bottom of the soil-inserting tube is pointed. The distribution position and distance of the soil-inserting tubes at the bottom of the soil-inserting plate are consistent with the distribution position and distance of the guide tubes on the seeding depth guide component at the bottom of the seeding depth plate. The pressing handle is connected to the center of the top of the soil-inserting plate.

[0036] As one specific implementation scheme, both the soil insertion plate and the pressing handle can be made of medical-grade polylactic acid (PLA); the soil insertion tube can be made of either medical-grade PLA or metal tubes (such as stainless steel tubes, copper tubes, etc.). Medical-grade PLA with high hardness is used, such as Anhui Fengyuan FY601, Zhejiang Haizheng REVODE110, eSUNMed L-PLA (PLLA), and Chengdu Nanding ND-PLLA.

[0037] When used for sowing in soil, it can be used in conjunction with a soil inserter. That is, first use the soil inserter to insert into the soil to form a sowing hole of a specified depth (place the soil inserter on the soil, push the handle vertically downward, the soil inserter penetrates into the soil, and pull it out when the specified depth is reached to form a sowing hole), and then use the seeder to sow. This can reduce or avoid the problem of the guide tube on the sowing depth guide tube being blocked.

[0038] The fabrication and use of the aforementioned laboratory pellet seed high-efficiency seed applicator includes the following stages:

[0039] (I) Preparation Stage

[0040] Based on the seed germination and pot experiment seed particle size requirements, a seed dispenser model was designed in 3D modeling software such as SolidWorks, including the layout of the seed hole array. Then, using a 3D printer with medical-grade PLA as the material, the seed dispenser was printed according to the design model, with a printing precision set to 0.1mm. The printed seed dispenser underwent post-processing, removing the support structure and polishing the surface to ensure a smooth, burr-free finish and prevent damage to the seeds. In terms of raw materials and energy consumption, 3D printing technology adopts an on-demand manufacturing model, reducing material waste compared to traditional machining, and the equipment operates with low energy consumption. In terms of process, no complex mechanical assembly and debugging are required; only 3D printing, post-processing, and simple assembly are needed for it to be put into use.

[0041] (II) Seeding Operation Stage

[0042] When seeding on the surface of agar or other culture media, detach the seeding depth guide tube. The operator holds the handle assembly, places the seeding component on the petri dish, pours the pelleted seeds into the seeding frame, and gently shakes the dish. The seeds enter the seeding holes under gravity. The seeding component is then lifted upwards, and the seeds in the holes fall onto the surface of the agar or other culture medium, completing one seeding cycle. Move the seeder to the next area to be seeded and repeat the above steps until all seeding tasks are completed.

[0043] When used for sowing in soil, such as in pots, the sowing depth guide tube component needs to be installed. The operator holds the handle component and places the pelleted seed high-efficiency sowing device on the soil in the pot or greenhouse, etc., and pours the pelleted seeds into the sowing frame. A gentle shake allows the seeds to enter the sowing holes under gravity. At this point, the seeds are located in the sowing holes with their bottoms resting on the partition. Then, pressing down causes the guide tube to penetrate the soil to the designated depth. The partition is then removed, and the seeds in the sowing holes fall into the soil along the guide tube. The pelleted seed high-efficiency sowing device is then lifted until it detaches from the soil, completing one sowing cycle. The sowing device is moved to the next area to be sown, and the above steps are repeated until all sowing tasks are completed.

[0044] When pouring the pelleted seeds into the seeding frame, you can prepare a number of pelleted seeds in advance that are the same as the number of seeding holes; or you can put pelleted seeds into each seeding hole and then remove the excess pelleted seeds; when there are not many excess pelleted seeds (they are not stacked), you can leave the excess pelleted seeds in place. As long as you do not shake the frame when lifting and moving it, the pelleted seeds will usually not leak out of the seeding holes during the process of moving it. When moving to the next seeding area, gently shake the frame and the pelleted seeds in the seeding frame will enter the seeding holes under the action of gravity.

[0045] When sowing seeds in soil, such as in pots, select a seeding depth guide tube that corresponds to the seeding depth.

[0046] The aforementioned seeding depth guide component ensures consistent seeding depth for each planting attempt, thus improving the accuracy of the experiment.

[0047] When sowing seeds in soil, such as in pots, a soil inserter can be used simultaneously. That is, the soil inserter is first inserted into the soil to form a sowing hole of a specified depth, and then the seeder is used to sow the seeds. This can reduce or avoid the problem of the guide tube on the sowing depth guide tube being blocked.

[0048] (III) Cleaning and Storage Phase

[0049] After sowing, pour out the remaining seeds from the sowing frame and use a soft brush to clean the remaining seeds and impurities from the sowing holes.

[0050] When sowing seeds of different sizes, simply change the sowing plate with different aperture sizes to achieve rapid conversion between sowing of different particle sizes.

[0051] This application solves the following technical problems:

[0052] Improving seed placement accuracy: Existing manual seed placement techniques using tweezers or simple droppers lack precise positioning and control, easily leading to seed placement misalignment and uneven spacing, affecting the accuracy of germination test counts and the uniformity of seedling emergence in potted plants. This application aims to achieve precise positioning and stable placement of pelleted seeds through structural design, ensuring uniform seed placement and spacing with minimal error. This guarantees uniform seed spacing and depth in agar dishes or potted soil, facilitating germination test counting and improving the synchronicity and uniformity of seedling growth in potted plants.

[0053] Improving sowing efficiency: Manual sowing is cumbersome and time-consuming, resulting in extremely low efficiency for large-scale sowing tasks. The high-efficiency sowing device designed in this application significantly reduces manual steps and shortens sowing time, enabling the sowing of large quantities of pelleted seeds in a short period. This meets the high-efficiency operational needs of scientific research experiments, small-scale potted plant cultivation, and field soil scenarios, allowing researchers to focus more on core research work.

[0054] Reducing manual labor: Existing planting methods rely on repetitive manual operations over long periods, resulting in high labor intensity. This application optimizes the structure to reduce the operational burden on researchers, decrease hand fatigue, and make planting work easier and more convenient, thereby improving researchers' work experience and efficiency.

[0055] To avoid seed damage: Manually handling the pelleted seeds with tweezers can easily cause them to slip and become damaged, while dropper application may also damage the seeds due to unstable adsorption. This application designs reasonable and precise seed-planting apertures of different sizes for pelleted seeds, and uses a gentler and more stable method to treat the seeds, avoiding physical damage to the seeds during the planting process, and ensuring the integrity of the pelleted seed coat (protective function) and germination rate.

[0056] Enhanced versatility: Existing seed applicators are difficult to adapt to pelleted seeds of different sizes and characteristics. This application designs a replaceable seed applicator plate, which is compatible with pelleted seeds of various sizes and weights. When changing to different types of seeds for seed application, there is no need for complex debugging and component replacement, reducing usage and time costs and improving the applicability and flexibility of the equipment.

[0057] Wide applicability: Through its structural design, this application is suitable for both surface sowing on agar and other culture media, as well as soil sowing in pots and other similar experiments. This effectively ensures consistency in sowing depth and interval, improving experimental accuracy. Furthermore, a matching soil-inserting conduit is included, facilitating sowing and reducing or preventing blockage of the conduits in the sowing depth conduit component.

[0058] Any technologies not mentioned in this utility model are based on existing technologies.

[0059] This utility model of a high-efficiency seed applicator for laboratory pelleted seeds has the following beneficial effects:

[0060] 1. Significantly improved seeding accuracy: Existing manual seeding methods rely on operator experience and hand stability, often resulting in seeding position errors exceeding ±5mm. This can easily lead to seed overlap or uneven spacing, making germination test counting difficult and causing uneven seedling emergence in potted plants. This application's high-efficiency seeder, through an array of seeding holes, can precisely plant seeds at designated locations, ensuring uniform seed distribution. Simultaneously, the addition of a deep seed delivery conduit allows for precise setting of the sowing depth for potted plants, ensuring consistent sowing depth for seeds from the same batch. Furthermore, the consistent particle size on the same seeding plate further controls the potential inconsistency in the particle size of pelleted seeds entering the seeding holes during pelleting, optimizing the issue of particle size variation and effectively improving the uniformity of seedling emergence in potted plants, providing a clear and accurate counting basis for germination tests.

[0061] 2. Significantly Improved Sowing Efficiency: Manual sowing of 100 seeds per germination box / pot or potted planter takes at least 5 minutes, even with skilled personnel, and efficiency decreases with time. However, using this sowing device, sowing 100 seeds per box / pot takes only about 10-20 seconds. Furthermore, the device supports quick-change of the sowing plate, making it suitable for sowing seeds of different sizes, and applicable to both large-scale scientific research experiments and small-scale planting scenarios.

[0062] 3. Significantly Reduced Manual Labor Intensity: Manual tweezers and dropper aspiration require prolonged fine motor skills, easily leading to muscle fatigue. The process is also cumbersome and labor-intensive. This seed applicator features an ergonomically designed handle, requiring only a simple shaking motion during operation. This significantly reduces complex hand movements and stress, making operators less prone to fatigue during extended planting sessions, effectively lowering labor intensity and improving work comfort and continuity. Furthermore, calculations show that the overall cost of using this seed applicator is at least 75% lower than existing manual methods, and its efficiency is at least 15 times higher, demonstrating high cost-effectiveness.

[0063] 4. Superior Protection of Seed Shell Integrity: In existing manual sowing methods, tweezers easily damage the seed shell, and the unstable suction of the dropper can also damage the seed shell, leading to an increased damage rate. This sowing device is made of medical-grade PLA material with a smooth, burr-free surface, and the seeds naturally slide off under gravity, avoiding direct damage from external forces. Experimental verification shows that using this sowing device, the integrity of the seed shell after sowing can reach over 99.5%, which is at least 20% higher than traditional methods, effectively protecting the seed shell and improving the success rate and planting effect.

[0064] 5. Simple Operation and Environmentally Friendly: Traditional seeding equipment is complex to operate, requiring extensive training for beginners to master. This seeder is simple to operate, requiring only "place the seed - shake - lift" to complete the seeding process, requiring no professional skills. In terms of environmental protection, the medical-grade PLA material is biodegradable and will not pollute the environment after disposal, offering greater environmental advantages compared to traditional plastic materials, aligning with green research and sustainable development concepts.

[0065] 6. Improved versatility and adaptability: Suitable for surface sowing on agar and other culture media, as well as soil sowing in pots and other similar experiments, effectively ensuring consistency in sowing depth and interval, and improving experimental accuracy. The replaceable sowing plate and sowing depth guide tube components are suitable for different particle sizes and sowing depths, offering strong versatility. Furthermore, a matching soil guide tube is included, facilitating sowing and reducing or preventing blockage of the sowing depth guide tube components. Attached Figure Description

[0066] Figure 1 This is a perspective view of the high-efficiency seed applicator for laboratory pelleting of seeds according to this utility model;

[0067] Figure 2 for Figure 1 The main view;

[0068] Figure 3 for Figure 2 The right view;

[0069] Figure 4 for Figure 3 Top view;

[0070] Figure 5 This is a three-dimensional (semi-exploded) view of the laboratory pellet seed high-efficiency seed applicator of this utility model;

[0071] Figure 6 for Figure 5 The main view;

[0072] Figure 7 for Figure 5 The right view;

[0073] Figure 8 An exploded three-dimensional view of the laboratory pellet seed high-efficiency seed applicator of this utility model;

[0074] Figure 9 This is a perspective view of the seed component of this utility model;

[0075] Figure 10 for Figure 9 The main view;

[0076] Figure 11 This is a perspective view of the insertion depth catheter component of this utility model;

[0077] Figure 12 for Figure 11 The main view;

[0078] Figure 13 This is a perspective view of the partition of this utility model;

[0079] Figure 14 for Figure 13 The main view;

[0080] Figure 15 This is a schematic diagram of the 8-group seeding plate of this utility model;

[0081] Figure 16 This is a perspective view of the soil-inserting and conveying device of this utility model;

[0082] Figure 17 for Figure 16 The main view;

[0083] Figure 18 for Figure 17 Top view;

[0084] In the diagram, 1 is the seeding component, 11 is the seeding frame, 111 is the pull-out opening, 112 is the insertion block, 113 is the outer flap, 12 is the seeding plate, 121 is the seeding hole, 13 is the handle assembly, 131 is the connecting cross, 132 is the support rod, and 133 is the hand grip cross; 2 is the seeding depth guide component, 21 is the connecting frame, 211 is the partition insertion port, 212 is the vertical slot, 22 is the seeding depth plate, 221 is the seeding depth hole, 23 is the guide, 3 is the partition, 31 is the horizontal plate, 32 is the vertical plate, and 33 is the handle; 4 is the soil insertion device, 41 is the soil insertion plate, 42 is the soil insertion tube, 421 is the height notch mark, and 43 is the press handle. Detailed Implementation

[0085] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0086] The directional terms used in this application, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," are based on the orientation or positional relationship shown in the accompanying drawings or in the usage state, and are only for the convenience of describing this application. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as an absolute limitation on this application.

[0087] Example 1

[0088] like Figure 1-8 As shown, a high-efficiency seed applicator for laboratory pelleted seeds includes: a seed applicator component, a seeding depth guide component, and a partition.

[0089] like Figure 9-10 As shown, the seeding component includes a seeding frame, seeding plates, and a handle assembly. The seeding frame has a square frame structure, and there are two or more seeding plates. Each seeding plate has seeding holes arranged in an array. The diameter of the seeding holes on different seeding plates is different. Each seeding plate can be movably connected to the bottom of the seeding frame. The handle assembly is connected to the top of the seeding frame.

[0090] like Figure 11-12 As shown, the seeding depth guide tube component includes a connecting frame, a seeding depth plate, and guide tubes; the connecting frame is movably connected to the bottom of the seeding frame; the seeding depth plate is connected to the bottom of the connecting frame, and the seeding depth plate is provided with seeding depth holes distributed in an array. The number of guide tubes is equal to the number of seeding depth holes and corresponds one-to-one. The guide tubes are connected to the bottom of the corresponding seeding depth holes, and the bottom of the guide tubes is pointed.

[0091] The number of seeding holes and seeding depth holes are equal and correspond one-to-one. The seeding holes and the corresponding seeding depth holes are set concentrically, that is, the seeding holes and their corresponding seeding depth holes are vertically opposite each other and their axes (normal lines) coincide.

[0092] The bottom of the connecting frame is provided with a partition insertion port, through which the partition can be inserted (that is, the partition can be pulled out) and located between the seeding plate and the seeding depth plate.

[0093] The aforementioned laboratory pellet seed high-efficiency seed spotting device is used for experiments involving seeding on the surface of culture media such as agar or sowing in soil such as pots.

[0094] When seeding on the surface of agar or other culture media, detach the seeding depth guide tube. The operator holds the handle assembly, places the seeding component on the petri dish, pours the pelleted seeds into the seeding frame, and gently shakes the dish. The seeds enter the seeding holes under gravity. The seeding component is then lifted upwards, and the seeds in the holes fall onto the surface of the agar or other culture medium, completing one seeding cycle. Move the seeder to the next area to be seeded and repeat the above steps until all seeding tasks are completed.

[0095] When used for sowing in soil, such as in pots, the sowing depth guide tube component needs to be installed. The operator holds the handle component and places the pelleted seed high-efficiency sowing device on the soil in the pot or greenhouse, etc., and pours the pelleted seeds into the sowing frame. A gentle shake allows the seeds to enter the sowing holes under gravity. At this point, the seeds are located in the sowing holes with their bottoms resting on the partition. Then, pressing down causes the guide tube to penetrate the soil to the designated depth. The partition is then removed, and the seeds in the sowing holes fall into the soil along the guide tube. The pelleted seed high-efficiency sowing device is then lifted until it detaches from the soil, completing one sowing cycle. The sowing device is moved to the next area to be sown, and the above steps are repeated until all sowing tasks are completed.

[0096] Example 2

[0097] Based on Example 1, the following improvements were made: Figure 9-10 As shown, for ease of use, each seed plate can be movably connected to the bottom of the seeding frame via a pull-out structure. The bottom of the seeding frame has a pull-out opening, and the inner sidewalls of the seeding frame on both sides of the opening have pull-out grooves. The seed plates slide within these grooves on both sides of the opening, forming the pull-out structure. The top of the outer sidewall of the seeding frame has two opposing outward-folding plates. For practicality, the handle assembly includes a connecting cross, a support rod, and a grip cross arranged sequentially from bottom to top. One end of the support rod is perpendicularly connected to the center of the top of the connecting cross, and the other end is perpendicularly connected to the center of the bottom of the grip cross. The four ends of the connecting cross are respectively connected to the four inner sidewalls of the top of the seeding frame. The outer side of the grip cross has an anti-slip texture.

[0098] Example 3

[0099] Based on Example 2, the following improvements were made: Figure 5 As shown, in order to improve the stability of the device, a plug is provided at the bottom of the outer side of the seed frame, and a vertical slot matching the plug is provided on the inner side of the connecting frame. The seed frame is inserted from the top of the connecting frame and is movably inserted into the inner side of the connecting frame, and the plug is inserted into the vertical slot that matches it.

[0100] Example 4

[0101] Based on Example 3, the following improvements were further made: Figure 13-14As shown, for ease of use, the partition includes a horizontal plate, a vertical plate, and a handle. The vertical plate is vertically connected to one end of the horizontal plate, and the handle is connected to the outside of the vertical plate. The horizontal plate is inserted through the partition insertion port and positioned between the seeding plate and the sowing depth plate. The two sides of the horizontal plate slide against the inner walls of the connecting frames on both sides of the partition insertion port. For example, if grooves are provided on the inner walls of the connecting frames on both sides of the partition insertion port, the two sides of the horizontal plate will slide into the grooves on both sides of the partition insertion port. The outer side of the vertical plate refers to the side of the vertical plate opposite to the seeding frame. The guide tube and the corresponding sowing depth hole are concentrically arranged, meaning their axes coincide. To facilitate smooth seed drop, the inner diameter of the guide tube and the diameter of the sowing depth hole are both larger than the diameter of the seeding holes on each seeding plate. Each seeding plate has 100 seeding holes. Of course, other numbers can be set according to specific needs.

[0102] Example 5

[0103] Based on Example 4, the following improvements were made: To facilitate different sowing depths, the number of sowing depth guide pipe components is two or more, and the connecting frame of each sowing depth guide pipe component can be movably connected to the bottom of the sowing frame; the partition can be movably inserted from the partition insertion port on the connecting frame of each sowing depth guide pipe component and is located between the sowing plate and the sowing depth plate; the guide pipes on each sowing depth guide pipe component have different lengths. In this example, there are three sowing depth guide pipe components, and the guide pipe lengths of the three sowing depth guide pipe components are 10mm, 20mm and 30mm respectively; the wall thickness of the guide pipe is 0.5mm and the inner diameter is 5.6mm.

[0104] Example 6

[0105] Based on Example 5, the following improvements were made: For ease of disassembly and replacement, an internal thread is provided on the inner side of the seeding depth hole, and an external thread is provided on the top of the outer side of the catheter. The top of the catheter is threadedly connected to the corresponding seeding depth hole. This facilitates the replacement of damaged catheters. In this example, the seeding components, connecting frame, seeding depth plate, partition, and catheter are all made of medical-grade polylactic acid. As another embodiment, the catheter can also be made of metal (such as stainless steel, copper, etc.).

[0106] Example 7

[0107] Based on Example 5, the following improvements were made: the catheter was connected to the bottom of the corresponding seeding depth hole by integral printing or bonding. The seeding components, connecting frame, seeding depth plate, partition, and catheter are all made of medical-grade polylactic acid. As another embodiment, the catheter can also be made of metal (such as stainless steel or copper). If a metal catheter is used, it is connected to the bottom of the corresponding seeding depth hole by resin adhesive bonding.

[0108] Example 8

[0109] like Figure 16-18As shown, a soil inserting conveyor, used in conjunction with the aforementioned laboratory pellet seed high-efficiency seeding device, includes a soil inserting plate, soil inserting tubes, and a pressing handle. The soil inserting tubes are arranged in an array at the bottom of the soil inserting plate. Each of the outermost soil inserting tubes has two or more height notches distributed along the height direction (for easy observation from all sides) to mark the depth of the soil inserting tubes inserted into the soil. The corresponding depth dimension can also be engraved on the height notch marks. The depth dimension is the distance from the bottom of the soil inserting tube to the height notch mark. The bottom of the soil inserting tube is pointed. The distribution position and distance of the soil inserting tubes at the bottom of the soil inserting plate are consistent with the distribution position and distance of the guide tubes on the seeding depth guide tube component at the bottom of the seeding depth plate. The pressing handle is connected to the center of the top of the soil inserting plate.

[0110] In this example, the soil insertion plate, pressing handle, and soil insertion tube are all integrally printed using medical-grade polylactic acid. As another embodiment, the soil insertion tube can also be made of metal (such as stainless steel or copper). If a metal tube is used, the soil insertion tube is connected to the bottom of the soil insertion plate by a threaded connection or adhesive bonding.

[0111] like Figure 16-18 As shown in this example, the outermost soil-inserting tubes are marked with two height notches distributed along the height direction, which are 10mm and 20mm from the bottom of the soil-inserting tube, respectively. The total height of the soil-inserting tubes is 30mm. When the soil-inserting tubes are fully inserted into the soil, it means that the soil-insertion depth has reached 30mm. This allows for accurate marking of the soil-insertion depths of 10mm, 20mm and 30mm.

[0112] When used for sowing in soil, it can be used in conjunction with a soil inserter. That is, first use the soil inserter to insert into the soil to form a sowing hole of a specified depth (place the soil inserter on the soil, push the handle vertically downward, the soil inserter penetrates into the soil, and when it reaches the height notch mark of the specified depth, pull it out to form a sowing hole), and then use the seeder to sow. This can reduce or avoid the problem of the guide tube on the sowing depth guide tube being blocked.

[0113] In this example, eight different sizes of seed holes were made:

[0114] Seeding plate A: The diameter of the seeding holes is 2.2mm and the spacing between the holes is 7.5mm. It is used for seeds with a particle size of 1.5-2.0mm.

[0115] Seeding plate B: The seeding hole diameter is 2.7mm and the hole spacing is 7mm. It is used for seeds with a particle size of 2.0-2.5mm.

[0116] Seeding plate C: The diameter of the seeding holes is 3.2 mm and the spacing between the holes is 6.5 mm. It is used for seeds with a particle size of 2.5-3.0 mm.

[0117] Seeding plate D: The diameter of the seeding holes is 3.7mm and the spacing between the holes is 6mm. It is used for seeds with a particle size of 3.0-3.5mm.

[0118] Seeding plate E: The diameter of the seeding holes is 4.2mm and the spacing between the holes is 5.5mm. It is used for seeds with a particle size of 3.5-4.0mm.

[0119] Seeding plate F: The diameter of the seeding holes is 4.7mm and the spacing between the holes is 5mm. It is used for seeds with a particle size of 4.0-4.5mm.

[0120] Seeding plate G: The diameter of the seeding holes is 5.2 mm and the spacing between the holes is 4.5 mm. It is used for seeds with a particle size of 4.5-5.0 mm.

[0121] Seeding plate H: The diameter of the seeding holes is 5.7mm and the spacing between the holes is 4mm. It is used for seeds with a particle size of 5.0-5.5mm.

[0122] Note: Seeding plate A has a thickness of 2mm, and seeding plate BH has a thickness of 2.75mm. Two seeding components are fabricated: Seeding Component 1 and Seeding Component 2. The pull-out opening and slot of the seeding frame on Seeding Component 1 are matched with a seeding plate (Seedling Plate A) with a thickness of 2mm; the pull-out opening and slot of the seeding frame on Seeding Component 2 are matched with a seeding plate (Seedling Plate BH) with a thickness of 2.75mm. The connecting frame on the sowing depth guide tube can be movably connected to the bottom of the seeding frame on Seeding Component 1 or Seeding Component 2. Calculations show that the depth of the seeding holes (the thickness of the seeding plates) is reasonably adapted to the particle size of the pelleted seeds. The seeding plates effectively prevent overlapping or multiple pelleted seeds in the seeding holes, thus ensuring that a single seed falls into each seeding hole.

[0123] The fabrication and use of the laboratory pellet seed high-efficiency seed applicators in the above examples include the following stages:

[0124] (I) Preparation Stage

[0125] Based on the seed germination and pot experiment seed particle size requirements, a seed dispenser model was designed in 3D modeling software such as SolidWorks, including the seed hole array layout, and saved as an .STL file. The .STL file was imported into a 3D printer (model: Creality Ender-3 V2), and the printing parameters were set as follows: printing accuracy 0.1mm, printing speed 60mm / s, infill rate 20%, nozzle temperature 200℃, and printing platform temperature 60℃. Using medical-grade PLA as the material, the seed dispenser was printed according to the design model, with a printing accuracy set to 0.1mm, and the printing time was approximately 2 hours. The printed seed dispenser underwent post-processing, removing the support structure and sanding the surface to make it smooth and burr-free, avoiding damage to the seeds.

[0126] (II) Seeding Operation Stage

[0127] When seeding on the surface of agar or other culture media, detach the seeding depth guide tube. The operator holds the handle assembly, places the seeding component on the petri dish, pours the pelleted seeds into the seeding frame, and gently shakes the dish. The seeds enter the seeding holes under gravity. The seeding component is then lifted upwards, and the seeds in the holes fall onto the surface of the agar or other culture medium, completing one seeding cycle. Move the seeder to the next area to be seeded and repeat the above steps until all seeding tasks are completed.

[0128] When used for sowing in soil, such as in pots, the sowing depth guide tube component needs to be installed. The operator holds the handle component and places the pelleted seed high-efficiency sowing device on the soil in the pot or greenhouse, etc., and pours the pelleted seeds into the sowing frame. A gentle shake allows the seeds to enter the sowing holes under gravity. At this point, the seeds are located in the sowing holes with their bottoms resting on the partition. Then, pressing down causes the guide tube to penetrate the soil to the designated depth. The partition is then removed, and the seeds in the sowing holes fall into the soil along the guide tube. The pelleted seed high-efficiency sowing device is then lifted until it detaches from the soil, completing one sowing cycle. The sowing device is moved to the next area to be sown, and the above steps are repeated until all sowing tasks are completed.

[0129] When pouring the pelleted seeds into the seeding frame, you can prepare a number of pelleted seeds in advance that are the same as the number of seeding holes; or you can put pelleted seeds into each seeding hole and then remove the excess pelleted seeds; when there are not many excess pelleted seeds (they are not stacked), you can leave the excess pelleted seeds in place. As long as you do not shake the frame when lifting and moving it, the pelleted seeds will usually not leak out of the seeding holes during the process of moving it. When moving to the next seeding area, gently shake the frame and the pelleted seeds in the seeding frame will enter the seeding holes under the action of gravity.

[0130] When sowing seeds in soil, such as in pots, select a seeding depth guide tube that corresponds to the seeding depth.

[0131] The aforementioned seeding depth guide component ensures consistent seeding depth for each planting attempt, thus improving the accuracy of the experiment.

[0132] When sowing seeds in soil, such as in pots, a soil inserter can be used simultaneously. That is, the soil inserter is first inserted into the soil to form a sowing hole of a specified depth, and then the seeder is used to sow the seeds. This can reduce or avoid the problem of the guide tubes on the sowing depth guide tube being blocked.

[0133] (III) Cleaning and Storage Phase

[0134] After sowing, pour out the remaining seeds from the sowing frame and use a soft brush to clean the remaining seeds and impurities from the sowing holes.

[0135] When sowing seeds of different sizes, simply change the sowing plate with different aperture sizes to achieve rapid conversion between sowing of different particle sizes.

[0136] Application Examples

[0137] The above-mentioned seed applicator was used to conduct seeding experiments on three types of pelleted seeds: tobacco pelleted seeds (1.6-1.8 mm in diameter, 2.2 mm in diameter seeding hole, sown on agar), rapeseed pelleted seeds (2.6-2.8 mm in diameter, 3.2 mm in diameter seeding hole, sown in soil in flowerpots), and sorghum pelleted seeds (4.0-4.5 mm in diameter, 4.7 mm in diameter seeding hole, sown in soil in flowerpots). The results showed that the seeding position error was within ±0.2 mm, with no overlapping or missed spots, and the seedlings were evenly distributed, facilitating counting and observation, improving the consistency of plant growth space, and enhancing the accuracy of the experiment.

Claims

1. A high-efficiency seed applicator for laboratory pelleted seeds, characterized in that: include: Seeding components, seeding depth guide pipe components, and diaphragms; The seeding component includes a seeding frame, seeding plates, and a handle assembly. The seeding frame has a square frame structure, and there are two or more seeding plates. Each seeding plate has seeding holes arranged in an array. The diameter of the seeding holes on different seeding plates is different. Each seeding plate can be movably connected to the bottom of the seeding frame. The handle assembly is connected to the top of the seeding frame. The seeding depth guide tube component includes a connecting frame, a seeding depth plate, and guide tubes; the connecting frame is movably connected to the bottom of the seeding frame; the seeding depth plate is connected to the bottom of the connecting frame, and the seeding depth plate has seeding depth holes distributed in an array. The number of guide tubes is equal to the number of seeding depth holes and corresponds one-to-one. The guide tubes are connected to the bottom of the corresponding seeding depth holes, and the bottom of the guide tubes is pointed. The number of seeding holes and seeding depth holes are equal and correspond one-to-one, and the seeding holes and the corresponding seeding depth holes are set concentrically; The bottom of the connecting frame is provided with a partition insertion port, through which the partition is movably inserted and located between the seeding plate and the seeding depth plate.

2. The high-efficiency seed applicator for laboratory pelleted seeds according to claim 1, characterized in that: Each seeding plate can be movably connected to the bottom of the seeding frame via a pull-out structure; the top of the outer side wall of the seeding frame is provided with two opposing outward-folding plates.

3. The high-efficiency seed applicator for laboratory pelleted seeds according to claim 2, characterized in that: The bottom of the seeding frame is provided with a pull-out opening, and the inner sidewalls of the seeding frame on both sides of the pull-out opening are provided with pull-out grooves. The two sides of the seeding plate slide and fit in the pull-out grooves on both sides of the pull-out opening.

4. The laboratory pellet seed high-efficiency seed applicator according to any one of claims 1-3, characterized in that: The handle assembly includes a connecting cross, a support rod, and a hand grip cross arranged sequentially from bottom to top; one end of the support rod is vertically connected to the center of the top of the connecting cross, and the other end is vertically connected to the center of the bottom of the hand grip cross; the outside of the hand grip cross is provided with anti-slip texture; the four ends of the connecting cross are respectively connected to the inner sidewalls of the top four sides of the dotted frame.

5. The laboratory pellet seed high-efficiency seed applicator according to any one of claims 1-3, characterized in that: The bottom outer side of the seeding frame is provided with an insert block, and the inner side of the connecting frame is provided with a vertical slot that matches the insert block. The seeding frame is inserted from the top of the connecting frame and is movably inserted into the inner side of the connecting frame, and the insert block is inserted into the matching vertical slot.

6. The laboratory pellet seed high-efficiency seed applicator according to any one of claims 1-3, characterized in that: The partition includes a horizontal plate, a vertical plate, and a handle. The vertical plate is vertically connected to one end of the horizontal plate, and the handle is connected to the outside of the vertical plate. The other end of the horizontal plate is inserted from the partition insertion port and is located between the seeding plate and the seeding depth plate. The two sides of the horizontal plate are slidably engaged with the inner sidewalls of the connecting frame on both sides of the partition insertion port.

7. The laboratory pellet seed high-efficiency seed applicator according to any one of claims 1-3, characterized in that: The guide tube and its corresponding seeding depth hole are concentrically arranged; the inner diameter of the guide tube and the diameter of the seeding depth hole are both larger than the diameter of the seeding hole on each seeding plate.

8. The high-efficiency seed applicator for laboratory pelleting according to any one of claims 1-3, characterized in that: The number of seeding depth guide tube components is two or more, and the connecting frame of each seeding depth guide tube component can be movably connected to the bottom of the seeding frame; the partition can be movably inserted from the partition insertion port of the connecting frame on each seeding depth guide tube component and is located between the seeding plate and the seeding depth plate; the guide tube length of each seeding depth guide tube component is different.

9. The high-efficiency seed applicator for laboratory pelleted seeds according to any one of claims 1-3, characterized in that: The inner side of the seeding hole is provided with an internal thread, and the top of the outer side of the guide tube is provided with an external thread. The top of the guide tube is threadedly connected to the corresponding seeding hole.

10. A soil delivery device, used in conjunction with the laboratory pellet seed high-efficiency seed applicator according to any one of claims 1-9, characterized in that: It includes a soil insertion plate, soil insertion tubes, and a pressing handle; the soil insertion tubes are arranged in an array at the bottom of the soil insertion plate, and the outermost soil insertion tubes are marked with two or more height notches distributed along the height direction. The bottom of the soil insertion tubes is pointed. The distribution position and distance of the soil insertion tubes at the bottom of the soil insertion plate are consistent with the distribution position and distance of the guide tubes on the seeding depth guide tube component at the bottom of the seeding depth plate; the pressing handle is connected to the center of the top of the soil insertion plate.

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