Portable adjustable manual hill-seeding corn and soybean intercropping seeder

Abstract

The invention relates to the related technical field of corn intercropping seeding, and discloses a portable adjustable manual hill-seeding corn and soybean intercropping seeder which comprises a moving trolley and two seeding assemblies connected to the moving trolley in parallel, and each seeding assembly comprises a seed distribution disc, a planting cylinder and two seed storage boxes; the interior of the seed storage box is vertically divided into a left seed storage chamber and a right seed storage chamber, openings are formed in the bottoms of the two seed storage chambers, and sliding blocks are arranged on the two sides of the openings; a feeding opening matched with the opening of the seed storage box is formed in the seed distribution disc, and sliding grooves matched with the sliding blocks are formed in the two sides of the feeding opening; the opposite sides of the two seed storage boxes are connected through a telescopic rod piece, the telescopic rod piece comprises two sleeve rods and a threaded rod, the threaded rod is rotated to enable the two sleeve rods to move face to face or back to back, the two seed storage boxes are driven to move face to face or back to back along the sliding grooves, one opening of each seed storage chamber is communicated with the feeding opening, and the other opening of each seed storage chamber is communicated with the discharging opening. The invention provides a portable adjustable manual dibble seeding corn and soybean intercropping seeder which can be used for continuous intercropping seeding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of corn intercropping seeding, and particularly relates to a portable and adjustable artificial dibbling corn-soybean intercropping seeder. BACKGROUND

[0002] The core physiological and ecological mechanism of densely planted corn and soybean intercropping is essentially that densely planted corn triggers interspecific dynamic interaction by reshaping the field microenvironment. Dense corn compresses the soybean canopy space by virtue of its height advantage, changes the light conditions and field temperature and humidity, and simultaneously affects the rhizosphere soil environment through dense root systems; soybeans adapt to this change by initiating shade avoidance, adjusting the photosynthetic system and plant architecture, and optimizing photosynthate allocation strategies to adapt to the weak light environment. Interspecific nutrient interaction exhibits characteristics of both competition and complementarity, with nitrogen competition being the most prominent, while the activation of soil phosphorus by soybeans forms limited synergy, and the interspecific nutrient transfer efficiency is regulated by competition intensity. In addition, there is signal transduction and allelopathy between species under dense planting conditions, and soybeans respond to compound stress by adjusting hormone balance and accumulating osmotic adjustment substances, while diseases and pests exhibit a double effect due to changes in the microenvironment. When the corn density exceeds the critical threshold, the group will shift from synergistic gain to competitive loss, while soybeans can avoid stress by adjusting the growth period, and reasonable proportioning can optimize the spatial layout and balance resource acquisition to maintain the stability of the intercropping group.

[0003] The existing corn seeding has a high degree of mechanization, and the seeder can be divided into large-scale seeders and portable seeders. When intercropping corn in small plots, portable seeders can only sow in a single row, and the seeds need to be frequently replaced to complete the seeding. If a large seeder is used, it is difficult to enter small plots due to its large size and high cost. The width of the large seeder is not suitable for the width of the plot, resulting in the remaining part of the plot not being seeded, and a portable seeder needs to be used for secondary seeding. To solve this problem, a double-row portable seeder has been developed in the prior art, which can perform synchronous seeding of two different seeds by arranging two seeding structures in parallel on a moving trolley, in order to facilitate intercropping. However, in actual seeding, after one row is seeded, the trolley needs to be moved to the starting end of the seeding to continue seeding in the same direction. If it is convenient to operate, the trolley is turned around to continue seeding in the opposite direction closely next to the previous row, which will cause the problem that the two adjacent rows in the middle have the same type of seeds and cannot achieve intercropping. SUMMARY

[0004] To solve the above technical problems, the present application provides a portable and adjustable artificial dibbling corn-soybean intercropping seeder, which can perform intercropping seeding.

[0005] This invention provides a portable adjustable manual corn-soybean intercropping planter, comprising: a mobile trolley and two planting components connected in parallel thereon. The planting components include: a seed separating tray and a planting cylinder. The seed separating tray is used to quantitatively separate the seeds, and the planting cylinder is used to receive the separated seeds and plant them. It also includes: two seed storage boxes. The interior of the seed storage box is vertically divided into two seed storage chambers, and both seed storage chambers have openings at the bottom. Slider blocks are provided on both sides of the openings. The seed distribution tray has a feeding port that matches the opening of the seed storage box. Sliding grooves that match the sliders are provided on both sides of the feeding port. The sliders and sliding grooves slide in cooperation. Two seed storage boxes are connected on opposite sides by a telescopic rod. The telescopic rod includes two sleeve rods and a threaded rod. The first ends of the two sleeve rods are threaded to the two ends of the threaded rod, and the second ends of the two sleeve rods are fixed to the corresponding seed storage boxes. Rotating the threaded rod causes the two sleeve rods to move towards or away from each other, which in turn causes the two seed storage boxes to move towards or away from each other along the slide, so that one of the openings of the two seed storage chambers is connected to the feeding port.

[0006] Optionally, the sliding path of the chute is provided with two positioning recesses, and the seed storage box is provided with an elastic positioning element that cooperates with the positioning recesses; when the elastic positioning element is engaged in either positioning recess, the seed outlet of one seed storage chamber of the seed storage box is aligned with the feeding port.

[0007] Optionally, the surface of the threaded rod is marked with scale markings along its length, and the outer walls of both sleeves are marked with positioning scale lines.

[0008] Optionally, the threaded rod is fitted with a bevel gear set, which includes a first bevel gear and a second bevel gear. The first bevel gear is coaxially connected to the threaded rod, and the second bevel gear is vertically arranged and meshes with the first bevel gear. A rotating handle is coaxially fixed to the second bevel gear.

[0009] Optionally, one side of the seed storage box is made of transparent material and has a remaining quantity indicator. The inner wall of the seed storage box is smooth and the bottom is conical.

[0010] Optionally, limit blocks are provided at both ends of the chute to limit the movement of the seed storage box.

[0011] Optionally, the planting cylinder is vertically slidably connected to the frame of the moving trolley via a sleeve. A sowing port is provided at the lower end of the planting cylinder. The seeding disc is connected to the planting cylinder via a crank-slider pair. The slider of the crank-slider pair is fixedly connected to the side wall of the planting cylinder. The crank of the crank-slider pair is rotatably connected to the rotating shaft of the seeding disc. Multiple adjustment holes are provided on the crank of the crank-slider pair. The multiple adjustment holes are evenly distributed along the radial direction of the seeding disc. The connecting rod of the crank-slider pair is fixedly connected to one of the adjustment holes.

[0012] Optionally, the two seeding discs are connected by a transmission assembly for synchronous sowing. The transmission assembly includes: a first transmission belt, a second transmission belt, a reduction gearbox, and a third transmission belt. The first transmission belt connects the seeding disc shaft of one of the sowing components to the output shaft of the reduction gearbox. The second transmission belt connects the seeding disc shafts of both sowing components. The third transmission belt connects the input shaft of the reduction gearbox to the wheel shaft of the moving trolley. The reduction gearbox is equipped with a speed regulating gear set, and a speed regulating handle is provided on the outside of the reduction gearbox.

[0013] Optionally, flexible gaskets are embedded in the feeding port and the bottom opening of the seed storage box.

[0014] The technical solution provided by this invention has the following advantages compared with the prior art: By rotating the threaded rod of the telescopic rod, the two seed storage boxes can be driven to slide laterally simultaneously, so that the different openings at the bottom of the seed storage boxes are alternately aligned with the feeding port of the seed tray, thereby quickly switching the seed supply type of each row of the seeder; the specific working process is as follows: before the first round of sowing, the seed storage boxes are adjusted to the state where the left box dispenses corn seeds and the right box dispenses soybean seeds, and the trolley is pushed to sow two rows of corn-soybeans; when the first round is completed and the trolley needs to be turned around for the second round of sowing, there is no need to change the seeds, just rotate the threaded rod to switch the seed supply state to the state where the left box dispenses soybean seeds and the right box dispenses corn seeds, and then push the trolley to sow two rows of soybean-corn at the adjacent position of the previous round; by alternating the switching before each round of sowing, it can be ensured that in the entire field, regardless of the sowing direction, all adjacent rows are always different seeds, forming a continuous and correct corn-soybean-corn-soybean intercropping sequence. Through a purely mechanical sliding switching design, the problem of row sequence disorder in reciprocating operations is fundamentally solved, ensuring the precise execution of intercropping techniques. Simultaneously, this design is extremely easy to operate, enabling seed replacement without stopping the plant, significantly improving the continuity and efficiency of sowing operations. Furthermore, the entire structure is simple, reliable, and low-cost, maintaining the advantages of a portable seeder's compact size and flexibility for small plots while perfectly achieving the high-efficiency intercropping requirement of simultaneous double-row, different-seed sowing with accurate row sequence. It is particularly suitable for use in field environments, significantly improving the operational efficiency and agronomic quality of intercropping sowing. The overall structure is simple, reliable, and easy to adjust, enhancing sowing adaptability and operational efficiency while maintaining the seeder's portability and operability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a portable adjustable manual corn-soybean intercropping planter provided in an embodiment of the present invention; Figure 2 This is a side view of a portable, adjustable manual corn-soybean intercropping planter provided in an embodiment of the present invention; Figure 3 This is a top view of a portable, adjustable manual corn-soybean intercropping planter provided in an embodiment of the present invention; Figure 4 This is a front view of a portable, adjustable manual corn-soybean intercropping planter provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the seeding disc provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the rotating layer provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the planting cylinder provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the crank structure of the crank-slider pair provided in an embodiment of the present invention; Figure 9 This is a structural schematic diagram of the telescopic rod provided in an embodiment of the present invention; Figure 10 This is a cross-sectional view of a seed storage box provided in an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. Moving trolley; 2. Transmission assembly; 3. First sowing assembly; 4. Second sowing assembly; 31. Seeding tray; 32. Seed storage box; 33. Planting cylinder; 311. Fixed layer; 312. Rotating layer; 3111. Feed inlet; 3112. Discharge inlet; 3121. Seeding groove; 331. Sleeve; 21. Crank-slider pair; 22. Gearbox; 5. Linear motion assembly; 51. Slide rail; 52. Slide table; 33. 11. Connecting column; 211. Adjusting hole; 6. Soil-breaking shovel; 7. Soil-pressing assembly; 71. Pressure roller; 72. Buffer spring; 332. Seeding port; 3321. Left petal; 3322. Right petal; 3323. Pull rope; 3324. Hinge handle; 321. Telescopic rod; 3211. Threaded rod; 3212. Sleeve rod; 3213. First bevel gear; 3214. Second bevel gear; 3215. Rotating handle. Detailed Implementation

[0017] The following detailed description of a specific embodiment of the present invention is provided in conjunction with the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0018] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] The present invention will be described below through several specific embodiments. To keep the following description of the embodiments clear and concise, detailed descriptions of known functions and components may be omitted. When any component of an embodiment of the present invention appears in more than one drawing, the component may be represented by the same reference numerals in each drawing.

[0020] Figure 1 This is a three-dimensional schematic diagram of a portable, adjustable, manual corn-soybean intercropping planter provided in an embodiment of the present invention. Figure 2 This is a side view of a portable, adjustable, manual corn-soybean intercropping planter provided in an embodiment of the present invention. Figure 3 This is a top view of a portable, adjustable manual corn-soybean intercropping planter provided in an embodiment of the present invention. Figure 4 This is a front view of a portable, adjustable, manual corn-soybean intercropping planter provided in an embodiment of the present invention. Figure 5 This is a schematic diagram of the seeding disc provided in an embodiment of the present invention. Figure 6 This is a schematic diagram of the rotating layer provided in an embodiment of the present invention. Figure 7 This is a schematic diagram of the structure of the planting cylinder provided in an embodiment of the present invention. Figure 8 This is a schematic diagram of the crank structure of the crank-slider pair provided in an embodiment of the present invention. Figure 9 This is a structural schematic diagram of the telescopic rod provided in an embodiment of the present invention. Figure 10 This is a cross-sectional view of a seed storage box provided in an embodiment of the present invention.

[0021] like Figure 1 and Figure 6As shown, this embodiment of the invention provides a portable adjustable manual corn-soybean intercropping planter, comprising: a mobile trolley 1 and two planting components connected in parallel thereon. Each planting component includes: a seed separating tray 31 and a planting cylinder 33. The seed separating tray 31 is used to quantitatively separate seeds, and the planting cylinder 33 is used to receive and plant the separated seeds. It also includes: two seed storage boxes 32; the interior of each seed storage box 32 is vertically divided into left and right seed storage chambers, and each of the two seed storage chambers has an opening at its bottom, with sliders on both sides of the opening; the seed separating tray 31 has a feeding port 3111 that matches the opening of the seed storage box 32. 1. Both sides are provided with sliding grooves that match the slider, and the slider slides in cooperation with the sliding grooves; the two seed storage boxes 32 are connected on opposite sides by telescopic rods 321. The telescopic rods 321 include two sleeve rods 3212 and a threaded rod 3211. The first ends of the two sleeve rods 3212 are threaded to the two ends of the threaded rod 3211 respectively, and the second ends of the two sleeve rods 3212 are fixedly connected to the corresponding seed storage box 32 respectively; rotating the threaded rod 3211 causes the two sleeve rods 3212 to move towards or away from each other, driving the two seed storage boxes 32 to move towards or away from each other along the sliding grooves, so that one of the openings of the two seed storage chambers is connected to the feeding port 3111.

[0022] By rotating the threaded rod 3211 of the telescopic rod 321, the two seed storage boxes 32 can be driven to slide laterally, so that the different openings at the bottom of the seed storage boxes 32 are alternately aligned with the feeding port 3111 of the seed tray 31, thereby quickly switching the seed supply type for each row of the seeder. The specific working process is as follows: before the first round of sowing, the seed storage boxes 32 are adjusted to the state where the left box dispenses corn seeds and the right box dispenses soybean seeds, and the trolley is pushed to sow two rows of corn and soybean. When the first round is finished and the trolley needs to be turned around for the second round of sowing, there is no need to change the seeds. Just rotate the threaded rod 3211 to switch the seed supply state to the state where the left box dispenses soybean seeds and the right box dispenses corn seeds. Then push the trolley to sow two rows of soybean and corn at the adjacent position of the previous round. By alternating the switching before each round of sowing, it can be ensured that in the entire field, regardless of the sowing direction, all adjacent rows are always different seeds, forming a continuous and correct corn-soybean-corn-soybean intercropping sequence. Through a purely mechanical sliding switching design, the problem of row sequence disorder in reciprocating operations is fundamentally solved, ensuring the precise execution of intercropping techniques. Simultaneously, this design is extremely easy to operate, enabling seed replacement without stopping the plant, significantly improving the continuity and efficiency of sowing operations. Furthermore, the entire structure is simple, reliable, and low-cost, maintaining the advantages of a portable seeder's compact size and flexibility for small plots while perfectly achieving the high-efficiency intercropping requirement of simultaneous double-row, different-seed sowing with accurate row sequence. It is particularly suitable for use in field environments, significantly improving the operational efficiency and agronomic quality of intercropping sowing. The overall structure is simple, reliable, and easy to adjust, enhancing sowing adaptability and operational efficiency while maintaining the seeder's portability and operability.

[0023] Optionally, the sliding path of the chute is provided with two positioning recesses, and the seed storage box 32 is provided with an elastic positioning element that cooperates with the positioning recesses; when the elastic positioning element is engaged in either positioning recess, the seed outlet of one seed storage chamber of the seed storage box 32 is aligned with the feeding port 3111.

[0024] Specifically, two positioning recesses are provided on the sliding path of the chute. The positions of these two recesses are calculated and calibrated. The first positioning recess corresponds to the corn seed storage chamber, ensuring that when the seed storage box 32 moves to this position, the seed outlet at the bottom of the corn seed storage chamber is completely aligned with the feeding port 3111 of the sowing component. The second positioning recess corresponds to the soybean seed storage chamber, achieving alignment between the seed outlet of the soybean seed storage chamber and the feeding port 3111. In conjunction with this, an elastic positioning component is installed on the bottom or side of the seed storage box 32. This component consists of positioning steel balls or hemispherical pins, springs, and mounting cavities. The spring pushes the steel balls outward, causing them to partially protrude. During operation, when the operator rotates the threaded rod 3211 to move the seed storage box 32, the steel ball retracts under the pressure of the sliding groove plane. When the seed storage box 32 reaches the target position, the steel ball falls into the corresponding positioning recess under the spring force. This process produces a clear clicking sound or a tactile feedback as feedback of positioning, and at the same time forms a mechanical lock to prevent displacement due to vibration during operation. As long as the elastic positioning element is engaged in any recess, the seed outlet of the corresponding seed storage chamber of the seed storage box 32 will be precisely aligned with the feeding port 3111 of the seed distribution tray 31, thereby realizing the unobstructed and smooth flow of seeds from the seed storage chamber to the sowing mechanism. Its mechanical positioning has high reliability, ensuring repeatable accuracy for each switch; clear visual, auditory, and tactile feedback improves the intuitiveness and experience of operation; the locked state effectively prevents accidental misoperation and vibration displacement; and the overall structure is simple, durable, and low-cost, making it suitable for farmland environments. Furthermore, this solution also has feasible variations. For example, the positioning recess can be a V-shaped groove, a hemispherical pit, or a rectangular slot, and the elastic positioning element can be a plunger pin or an elastic latch. The positions of the positioning recess and the elastic positioning element can even be interchanged on the seed storage box 32 and the sowing component body, while maintaining the core cooperation principle. This embodiment, by introducing a mechanism for elastic positioning and recess engagement, improves the seeder's mode switching function and solves the key technical problem of quickly, reliably, and accurately switching and locking corn / soybean intercropping sowing.

[0025] Optional, see reference Figure 9 The surface of the threaded rod 3211 is marked with scale marks along its length, and the outer walls of both sleeve rods 3212 are marked with positioning scale lines.

[0026] Specifically, a clear and fixed positioning scale line is set on the outer wall of each of the two sleeve rods 3212. This line is usually perpendicular to the axis of the sleeve rod 3212 and serves as a reading reference baseline. During operation, when it is necessary to adjust the two seed storage boxes 32, the operator uses a wrench to hold or directly grasps the hexagonal adjustment head to rotate it. The hexagonal design provides better force distribution and anti-slip properties, ensuring effective and effortless rotation of the threaded rod 3211. The rotation of the threaded rod 3211 drives the two sleeve rods 3212 to move towards or away from each other along their axial direction. At this time, the positioning scale line fixed on the outer wall of the sleeve rod 3212 moves relative to the scale markings on the surface of the threaded rod 3211. The operating principle is similar. Similar to the main scale and vernier scale of a vernier caliper: the operator can observe the value of the scale mark on the threaded rod 3211 aligned with the positioning scale line on either of the sleeves 3212. By recording the scale values ​​corresponding to the positioning scale lines of the two sleeves 3212 respectively, or by directly observing the change in distance between the two positioning scale lines, the relative displacement of the two sleeves 3212 can be determined. Since the sleeves 3212 are fixedly connected to the seed storage box 32, this displacement is directly equivalent to the adjustment amount of the distance between the two seed storage boxes 32. This design achieves the following functions: for corn-soybean mode switching, the corresponding recommended scale value can be marked in the product instructions, and the operator only needs to rotate the adjustment head to the target scale combination to achieve quick and accurate preset mode switching; precise fine-tuning of the distance between the seed storage boxes 32, rather than relying solely on two fixed positioning points. The operator can accurately record the optimal spacing scale, ensuring the repeatability and consistency of the operation; this design not only serves the basic mode switching, but also provides a technical foundation for adapting to more diverse planting modes, with strong functional expandability; the scale markings can be set only in key stroke sections, or color differentiation can be added; the positioning scale line can be a groove or a protruding indicator ridge. This embodiment significantly improves the practicality, accuracy, and user experience of the intercropping seeder through the design of the telescopic rod 321 operating part and the indicator markings.

[0027] Optional, see reference Figure 2 and Figure 9 The threaded rod 3211 is fitted with a bevel gear set, which includes a first bevel gear 3213 and a second bevel gear 3214. The first bevel gear 3213 is coaxially connected to the threaded rod 3211, and the second bevel gear 3214 is vertically arranged and meshes with the first bevel gear 3213. The second bevel gear 3214 is coaxially fixed to a rotating handle 3215.

[0028] Specifically, a set of bevel gears is added to the outside of the threaded rod 3211 used to drive the movement of the seed storage box 32. This bevel gear set consists of two mutually perpendicular meshing bevel gears: the first bevel gear 3213 is coaxially and fixedly connected to the threaded rod 3211, such as through a keyway, set screw, or integral molding, so that the rotation of the first bevel gear 3213 can directly and synchronously drive the threaded rod 3211 to rotate around its own axis; a second bevel gear 3214 is set perpendicular to the first bevel gear 3213 at a 90-degree angle and meshes with it, and a rotating handle 3215 is fixedly connected coaxially to the second bevel gear 3214. This set of bevel gears is usually encapsulated in a compact protective housing to prevent dust intrusion and ensure lubrication. During operation, when it is necessary to adjust the distance between the two seed storage boxes 32, the operator no longer needs to directly rotate the threaded rod 3211 itself, which is located in the middle of the machine and may be difficult to apply force to or has limited space; instead, they can easily rotate the rotating handle 3215 located on the side at a suitable height. The rotational motion of the handle 3215 is transmitted through the second bevel gear 3214. After a 90-degree directional change, the first bevel gear 3213 drives the threaded rod 3211 to rotate synchronously, ultimately driving the two sleeve rods 3212 to move in opposite directions or away from each other, thus adjusting the spacing of the seed storage box 32. The point of application of the adjustment force is shifted from the center of the machine to a more ergonomic side position, allowing the operator to stand on one side of the seeder for a more natural and effortless operation, avoiding bending over or awkward exertion postures. The bevel gear set can be designed with a specific transmission ratio, so that when the handle 3215 rotates multiple times, the threaded rod 3211 only rotates once, or the longer lever arm of the handle 3215 is converted into greater output torque, thus achieving effortless operation, especially suitable for occasions requiring large adjustment force or fine-tuning. Finally, the design of the handle 3215 provides a clearer and more comfortable operating interface, improving the user experience. This embodiment offers significant advantages: it greatly improves ergonomics and comfort, reducing fatigue from prolonged or frequent adjustments; the force-boosting effect achievable through gear transmission makes the adjustment process easier and more precise; and its compact structure integrates complex spatial direction conversion into a reliable gear transmission. Furthermore, this solution has feasible variations; for example, the transmission ratio of the bevel gear set can be adjusted as needed, the rotating handle 3215 can be designed to be foldable to save space, or an anti-slip sleeve can be added to the handle; the bevel gear set can also be replaced with other mechanisms that can change the transmission direction (such as a worm gear with a self-locking function). In summary, this embodiment, by introducing a bevel gear set and a side rotating handle 3215, optimizes the rotation operation, which originally acted directly on the threaded rod 3211, into a more ergonomic, less strenuous, and easier-to-control operating system, significantly improving the ease of adjustment, operational comfort, and overall efficiency of the seeder in actual field use.

[0029] Optional, see reference Figure 10 One side of the seed storage box 32 is made of transparent material and has a remaining quantity indicator. The inner wall of the seed storage box is smooth and the bottom is conical.

[0030] Specifically, one side wall of the seed storage box 32 is made of a transparent material such as transparent plastic or acrylic, allowing the operator to visually view the type, state, and remaining amount of seeds without opening the lid. On the inner or outer surface of this transparent side wall, there is a remaining amount indicator, typically a series of horizontally arranged scale lines, possibly accompanied by numbers or percentage symbols such as "full," "1 / 2," and "low," used to quantitatively indicate the remaining seed capacity. Simultaneously, to ensure smooth seed flow and reduce residue, the internal structure of both seed storage chambers of the seed storage box 32 is specially designed: their smooth inner wall surfaces can be achieved through polishing or the use of self-lubricating materials to minimize the likelihood of seeds, especially soybean seeds with potentially fuzzy or uneven surfaces, adhering or clogging due to friction or static electricity; furthermore, the bottom of each seed storage chamber is designed as a downward-convex cone structure. This cone-shaped funnel design utilizes gravity and geometry to naturally guide all seeds towards the seed outlet at the center of the bottom, effectively eliminating seed retention at the corners of the storage chamber and achieving complete seed utilization and stable delivery. During operation, operators can conveniently monitor seed consumption on both sides in real time through the transparent sidewalls and remaining seed indicators. This allows for scientific planning of the work process and timely replenishment when seed levels are low, preventing interruptions and efficiency losses due to sudden seed shortages in the field and avoiding potential mixing caused by blindly adding seeds. The combination of smooth inner walls and a conical bottom physically ensures smooth and unobstructed seed movement throughout the entire process from seed storage and flow to seed dispensing. Especially when the seeder is lifted, moved, or its angle changes, the conical bottom ensures that seeds quickly return to the seed outlet area, maintaining a stable seed dispensing readiness. The smooth inner walls further eliminate flow resistance and the risk of blockage. The transparent sidewalls and remaining seed indicators greatly enhance the visualization and planning capabilities of sowing operations, making operations more proactive and efficient. The structural combination of smooth inner walls and a conical bottom optimizes seed flow characteristics from the root, significantly improving seed dispensing reliability and thorough emptying, reducing malfunctions caused by seed blockage or bridging, and enhancing the seeder's adaptability to seeds of different characteristics. Furthermore, this solution also has feasible variations. For example, the transparent sidewalls can cover most of the area of ​​the seed storage box 32 to provide better visibility; the remaining quantity markings can use colored areas or luminescent materials for identification in low light conditions; and the tilt angle of the conical bottom can be specifically optimized according to the repose angle of different seeds. In summary, this embodiment, through the comprehensive design of the observation window, quantitative markings, and internal flow channel morphology of the seed storage box 32, significantly enhances the visibility, predictability, and reliability of the seeder during use, representing a significant improvement in overall user experience and operational efficiency.

[0031] Optionally, limit blocks are provided at both ends of the chute to limit the movement of the seed storage box 32.

[0032] Specifically, at the beginning and end of the groove on the sowing assembly, which is used to slide and engage with the bottom slider of the seed storage box 32, a limiting block is set at each end of the groove. This limiting block is typically a robust solid structure, and can be welded, bolted, or integrally formed with the groove base as a protrusion, baffle, or pin. Its core function is to physically block the passage of the groove, thereby mechanically limiting the movement of the bottom slider of the seed storage box 32 within the groove and preventing it from sliding out of the effective engagement range. During operation, when the operator drives the two seed storage boxes 32 to move towards or away from each other by rotating the threaded rod 3211 of the telescopic rod 321, the slider at the bottom of the seed storage box 32 slides along the groove. Regardless of the rotational force applied by the operator or the tendency of the seed storage box 32 to move due to inertia, when the slider slides to either end of the groove and contacts the limiting block at that end, its movement will be immediately and forcibly stopped. It prevents serious accidents such as the seed storage box 32 accidentally becoming completely misaligned with the feeding port 3111 due to excessive movement during adjustment, or even falling off the sowing assembly, ensuring the structural integrity of the equipment connection. Secondly, it provides two clear physical endpoints for the movement range of the seed storage box 32. These endpoints can be precisely designed so that their positions correspond exactly to the optimal alignment between the corn or soybean seed storage chamber and the feeding port 3111, thus playing an auxiliary positioning role at extreme stroke positions, complementing or backing up the elastic positioning function. It effectively protects other components connected to the telescopic rod 321 and the seed storage box 32, avoiding damage to the adjustment mechanism such as the threaded rod 3211 and the sleeve rod 3212 caused by mechanical stress generated by excessive stroke. The limit stop has a simple, robust, reliable, and extremely low-cost structure, yet provides crucial mechanical safety protection. Through a purely physical blocking method, it eliminates structural risks caused by human error or mechanical failure, greatly enhancing the durability and safety of the equipment. At the same time, it clearly defines the physical boundaries of adjustment, giving the operator a sense of boundaries during adjustment. Furthermore, this solution also has feasible variations. The limiting blocks can be designed to be detachable for easy maintenance, or they can be made of elastic cushioning material to absorb the impact upon contact. The position of the blocks can also be finely adjusted to adapt to different sizes of seed storage boxes 32 or different agronomic spacing requirements. In summary, this embodiment, through the simple and efficient design of setting limiting blocks at both ends of the chute, adds a crucial stroke safety measure to the sliding adjustment of the seed storage box 32, ensuring the structural safety, operational reliability, and clear operation of the seeder's core adjustment mechanism during long-term use. This is an important fundamental improvement that enhances the overall robustness of the equipment.

[0033] Optional, see reference Figure 1and Figure 6 The planting cylinder 33 is vertically slidably connected to the frame of the moving trolley 1 via the sleeve 331. The planting cylinder 33 is provided with a sowing port 332 at its lower end. The seeding disc 31 is connected to the planting cylinder 33 via a crank-slider pair 21. The slider of the crank-slider pair 21 is fixedly connected to the side wall of the planting cylinder 33. The crank of the crank-slider pair 21 is rotatably connected to the rotating shaft of the seeding disc 31. Multiple adjustment holes 211 are provided on the crank of the crank-slider pair 21. The multiple adjustment holes 211 are evenly distributed along the radial direction of the seeding disc 31. The connecting rod of the crank-slider pair 21 is fixedly connected to one of the adjustment holes 211.

[0034] The seed dispensing tray 31 is the core mechanism for precision seed dispensing, comprising a fixed layer 311 and a rotating layer 312. The fixed layer 311 remains stationary, with a top feeding port 3111 connecting to the seed storage box 32 and a bottom feeding port 3112 connecting to the upper end of the planting cylinder 33, forming a seed flow channel. The rotating layer 312 is coaxially nested inside the fixed layer 311 and can rotate around its central axis. Multiple seed dispensing grooves 3121 are spaced apart on its outer circumferential arc surface, each groove capable of holding one or more seeds. As the rotating layer 312 rotates with its shaft, the seed dispensing grooves 3121 sequentially draw seeds from below the feeding port 3111 and release them into the planting cylinder 33 when they reach the feeding port 3112, completing one quantitative seed dispensing operation. The rotating shaft of the seed dispensing tray 31 is supported on the frame by bearings, ensuring smooth and reliable rotation. This structure achieves precise seed separation and delivery through mechanical volumetric metering, avoiding the additional energy support required by pneumatic or electromagnetic mechanisms, making it more suitable for use in unpowered manual equipment.

[0035] The planting cylinder 33 receives seeds from the seeding tray 31 and directs them into the soil. Its main body is a tubular structure, vertically slidably connected to the frame of the moving trolley 1 via a sleeve 331; that is, the sleeve 331 is fixed to the frame, and the planting cylinder 33 can slide up and down within the sleeve 331. The lower end of the planting cylinder 33 has a sowing port 332 for discharging seeds. During operation, the planting cylinder 33 reciprocates vertically with the drive of the crank-slider pair 21: during the descending phase, it inserts into the soil to form a seed hole, simultaneously opening the sowing port 332 to release the seeds; during the ascending phase, it exits the soil layer, preparing for the next cycle. This structure simulates the manual sowing motion, but improves repeatability and consistency of the work rhythm through mechanical transmission.

[0036] Specifically, the seeding disc 31 has a disc-shaped structure, with multiple seeding grooves 3121 evenly distributed along the circumference of its inner surface. Each seeding groove 3121 differs in size, depth, or volume to accommodate the single-seed or quantitative seed collection needs of different seed types. For example, the seeding groove 3121 for corn planting is larger, suitable for accommodating and separating large-diameter seeds; while the seeding groove 3121 for soybeans or other small seeds is designed with a smaller volume to prevent multiple seeds from falling in simultaneously and causing reseeding. Multiple seeding grooves 3121 of various sizes are integrated on the same seeding disc 31. When the seeding disc 31 is working, the filling block seals the other seeding grooves 3121, leaving only one seeding groove 3121 open. This allows for crop type switching without replacing the entire seeding mechanism, improving the equipment's versatility and operational efficiency.

[0037] Optional, see reference Figure 2 and Figure 3 The two seeding discs 31 are connected by a transmission assembly 2 for synchronous sowing. The transmission assembly 2 includes a first transmission belt, a second transmission belt, a reduction gearbox 22, and a third transmission belt. The first transmission belt connects the rotating shaft of the seeding disc 31 of one of the sowing components to the output shaft of the reduction gearbox 22. The second transmission belt connects the rotating shafts of the seeding discs 31 of both sowing components. The third transmission belt connects the input shaft of the reduction gearbox 22 to the wheel axle of the moving trolley 1. The reduction gearbox 22 is equipped with a speed regulating gear set, and a speed regulating handle is provided on the outside of the reduction gearbox 22.

[0038] The first transmission belt connects the wheel axle of the mobile trolley 1 to the seeding disc 31 axle of the first sowing component 3, converting the walking speed into a seeding frequency. When the user pushes the trolley forward, the wheel rotation drives the first seeding disc 31 to rotate via the first transmission belt, causing it to pick up and sow seeds at a rate proportional to the walking speed, achieving the function of sowing as far as the user travels. The second transmission belt connects the seeding disc 31 axle of the first sowing component 3 to the seeding disc 31 axle of the second sowing component 4, transmitting the power of the first seeding disc 31 to the second seeding disc 31, ensuring that the seeding discs 31 of the two sowing components rotate synchronously, maintaining a consistent seeding rhythm, and avoiding problems such as misaligned sowing or uneven density caused by asynchrony.

[0039] Furthermore, when the operator rotates the speed control handle, it moves the internal shift fork, which in turn pushes the selected gear into engagement, changing the overall transmission ratio between the wheel and the seeding disc 31. Since the rotational speed of the seeding disc 31 is directly affected by the output shaft speed of the reduction gearbox 22, this adjustment mechanism can directly control the frequency of seed discharge per unit time, thus achieving stepless or stepped adjustment of the sowing density.

[0040] Optionally, flexible gaskets are embedded in the bottom opening of the feeding port 3111 and the seed storage box 32.

[0041] Specifically, the flexible gasket is compressed at the joint surface between the bottom slider of the seed storage box 32 and the chute platform of the feeding port 3111, or directly filled into the gap between the two openings. This forms an effective dynamic sealing interface, which can significantly reduce or even eliminate the possibility of accidental leakage of small seeds or dust from the joint gap, ensuring the effective use of seeds and keeping the work site clean. The elastic compression of the flexible gasket plays a certain role in shock absorption and buffering, absorbing the slight vibration and impact generated during the movement or spot sowing operation of the seeder, reducing the risk of accidental displacement of the seed storage box 32 or wear of the interface due to rigid collision, enhancing connection stability, and compensating for manufacturing tolerances and assembly gaps to a certain extent. This ensures that even with slight dimensional deviations, the interface can remain tightly fitted, improving the compatibility between different components and the overall process error tolerance.

[0042] Optional, see reference Figure 3 The portable adjustable manual corn planter trolley 1 has a slide groove at the front end for the planter to slide. Linear movement components 5 are fixed on both sides of the slide groove. The linear movement components 5 include a slide rail 51 and a slide table 52. The slide rail 51 is horizontally fixed on the trolley 1, and the slide table 52 is slidably connected to the slide rail 51. Connecting columns 3311 are fixed on both sides of the sleeve 331 of one of the planters. The connecting columns 3311 are fixedly connected to the slide tables 52 on both sides.

[0043] Optional, see reference Figure 4 It also includes two soil-breaking shovels 6 and two connecting columns 3311. The two soil-breaking shovels 6 are respectively connected to the front of the first seeding component 3 and the second seeding component 4 through the connecting columns 3311. The soil-breaking shovel 6 and the connecting column 3311 in front of the second moving component are fixedly connected to the slide table 52. The soil-breaking shovel 6 has a V-shaped structure and the cutting edge is coated with a wear-resistant coating.

[0044] Optional, see reference Figure 2 It also includes a soil compaction component 7, which is connected to the rear end of the mobile trolley 1. The soil compaction component 7 includes a pressure roller 71 and a buffer spring 72. The pressure roller 71 is connected to the bottom of the mobile trolley 1 through connecting columns 3311 on both sides. The buffer spring 72 is sleeved on the connecting column 3311. The pressure roller 71 is made of rubber and has anti-slip texture on its surface.

[0045] Optional, see reference Figure 7The sowing port 332 includes a left petal body 3321, a right petal body 3322, and a closure device. The left petal body 3321 and the right petal body 3322 are hinged to the lower end of the planting cylinder 33. A reset torsion spring is provided on the inner side of both. The closure device includes two pull ropes 3323 and two hinge handles 3324. One end of each of the two hinge handles 3324 is hinged to the side wall of the planting cylinder 33 and is symmetrically arranged. The first end of each pull rope 3323 is hinged to the outer wall of the left petal body 3321 and the right petal body 3322, respectively. The second end is connected to the corresponding hinge handle 3324. The vertical projection of the second end of the hinge handle 3324 exceeds the boundary of the vertical projection of the chute.

[0046] The above inventions are merely a few specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A portable, adjustable manual corn-soybean intercropping planter, comprising: A mobile trolley and two seeding components connected in parallel thereon, the seeding components including: a seed separating tray and a planting cylinder, the seed separating tray being used to quantitatively separate seeds, the planting cylinder being used to receive the separated seeds and plant them, characterized in that it further includes: two seed storage boxes; The interior of the seed storage box is vertically divided into two seed storage chambers, and each of the two seed storage chambers has an opening at the bottom. Slider blocks are provided on both sides of the opening. The seed distribution tray has a feeding port that matches the opening of the seed storage box. Sliding grooves that match the sliders are provided on both sides of the feeding port. The sliders slide in conjunction with the sliding grooves. The two seed storage boxes are connected on opposite sides by a telescopic rod. The telescopic rod includes two sleeve rods and a threaded rod. The first ends of the two sleeve rods are threaded to the two ends of the threaded rod, and the second ends of the two sleeve rods are fixedly connected to the corresponding seed storage boxes. Rotating the threaded rod causes the two sleeve rods to move towards or away from each other, which in turn causes the two seed storage boxes to move towards or away from each other along the slide groove, so that one of the openings of the two seed storage chambers is connected to the feeding port.

2. The portable adjustable manual corn-soybean intercropping planter as described in claim 1, characterized in that, The sliding path of the chute is provided with two positioning recesses, and the seed storage box is provided with an elastic positioning member that cooperates with the positioning recesses; when the elastic positioning member is engaged in either of the positioning recesses, the seed outlet of one of the seed storage chambers of the seed storage box is aligned with the feeding port.

3. The portable adjustable manual corn-soybean intercropping planter as described in claim 1, characterized in that, The surface of the threaded rod is marked with scale markings along its length, and the outer walls of both sleeve rods are marked with positioning scale lines.

4. The portable adjustable manual corn-soybean intercropping planter as described in claim 1, characterized in that, The threaded rod is fitted with a bevel gear set, which includes a first bevel gear and a second bevel gear. The first bevel gear is coaxially connected to the threaded rod, and the second bevel gear is vertically arranged and meshes with the first bevel gear. A rotating handle is coaxially fixed to the second bevel gear.

5. The portable adjustable manual corn-soybean intercropping planter as described in claim 1, characterized in that, One side of the seed storage box is made of transparent material and has a remaining quantity indicator. The inner wall of the seed storage box is smooth and the bottom is conical.

6. The portable adjustable manual corn-soybean intercropping planter as described in claim 1, characterized in that, The chute is provided with limit blocks at both ends, which are used to limit the movement of the seed storage box.

7. The portable adjustable manual corn-soybean intercropping planter as described in claim 1, characterized in that, The planting cylinder is vertically slidably connected to the frame of the moving trolley via a sleeve. A sowing port is provided at the lower end of the planting cylinder. The seeding disc is connected to the planting cylinder via a crank-slider pair. The slider of the crank-slider pair is fixedly connected to the side wall of the planting cylinder. The crank of the crank-slider pair is rotatably connected to the rotating shaft of the seeding disc. Multiple adjustment holes are provided on the crank of the crank-slider pair. The multiple adjustment holes are evenly distributed along the radial direction of the seeding disc. The connecting rod of the crank-slider pair is fixedly connected to one of the adjustment holes.

8. The portable adjustable manual corn-soybean intercropping planter as described in claim 7, characterized in that, The two seeding discs are connected by a transmission assembly for synchronous sowing. The transmission assembly includes a first transmission belt, a second transmission belt, a reduction gearbox, and a third transmission belt. The first transmission belt connects the seeding disc shaft of one of the sowing components to the output shaft of the reduction gearbox. The second transmission belt connects the seeding disc shafts of both sowing components. The third transmission belt connects the input shaft of the reduction gearbox to the wheel shaft of the moving trolley. The reduction gearbox is equipped with a speed regulating gear set, and a speed regulating handle is provided on the outside of the reduction gearbox.

9. The portable adjustable manual corn-soybean intercropping planter as described in claim 1, characterized in that, The feeding port and the bottom opening of the seed storage box are fitted with flexible gaskets.

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