A portable single-row plot seeder

Abstract

This invention provides a lightweight single-row experimental seeder, including a seeding wheel, a frame, and a press wheel. Multiple seed metering devices are mounted in a circular array on the seeding wheel. The seeding wheel is rotatably mounted on the frame, which is connected to the press wheel via a connecting rod. The seed metering device is duckbill-shaped and includes a fixed plate, a moving plate, a spring, and a lever. The fixed plate is triangular and fixed to the seeding wheel with screws. The moving plate is hinged to the fixed plate via the lever. The lever is L-shaped, with one side being a fixed rod and the other side being a telescopic rod. A spring is sleeved on the telescopic rod. The moving and fixed plates together form the seed outlet. Seed dispensing holes communicating with the seed outlet are opened on the circumference of the seeding wheel. This invention features a simple and reasonable structural design, adjustable plant spacing, easy assembly and disassembly, easy storage and carrying, convenient cleaning of residual seeds, and low manufacturing cost, making it suitable for widespread use.

Description

Technical Field

[0001] This utility model relates to a seeding device, specifically a lightweight single-row experimental seeder. Background Technology

[0002] The push seeder is a common agricultural seeding device. It is easy to operate, flexible, and low in cost, making it suitable for small-scale farmland, orchards, vegetable gardens, and mountainous areas where large machinery is not feasible. Since large mechanized seeders are not suitable for small experimental fields, push seeders are also widely used by agricultural and horticultural workers in small experimental plots or experimental areas with complex terrain.

[0003] To meet diverse experimental needs, experimental seeders need to operate in different experimental sites and be capable of sowing different seeds. Since different seeds have different sowing requirements, experimental seeders should have adjustable plant spacing. Existing models with adjustable plant spacing have complex structures, and adjusting the plant spacing is time-consuming. Seeds easily get stuck in the gaps, making cleaning difficult. When sowing other seeds, the entire seeder must be disassembled to thoroughly clean the remaining seeds, taking much longer than the sowing time, resulting in low efficiency. Furthermore, while existing models can sow multiple rows of seeds at once with high efficiency, their large size and time-consuming disassembly and assembly make them inconvenient for storage and transportation. In view of these problems, there is an urgent need for a simple, single-row experimental seeder that not only has adjustable plant spacing but also allows for quick loading and unloading, facilitating the cleaning of remaining seeds and making it easy to store and carry. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lightweight single-row experimental seeder that addresses the shortcomings of the prior art. The device has a simple and reasonable structural design, adjustable plant spacing, easy assembly and disassembly, easy storage and carrying, convenient cleaning of residual seeds, low manufacturing cost, and can be widely used.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a lightweight single-row test seeder, characterized in that it includes a seeding wheel, a frame and a press wheel, wherein multiple seed metering devices are installed in a circular array on the seeding wheel, the seeding wheel is rotatably mounted on the frame via an extension shaft, and the frame is connected to the press wheel via a connecting rod;

[0006] The seed metering device is duckbill shaped and includes a fixed plate, a moving plate, a spring, and a lever. The fixed plate is triangular and is fixedly connected to the seeding wheel by screws. The moving plate is hinged to the fixed plate by the lever. The lever is L-shaped, with one side being a fixed rod and the other side being a telescopic rod. A spring is sleeved on the telescopic rod. The moving plate and the fixed plate together form the seed outlet. The seeding wheel has a seed metering hole communicating with the seed outlet on its circumference.

[0007] Preferably, the sowing wheel is composed of two semi-circular seed storage boxes connected by a conical pin. One end face of each seed storage box has a seed outlet for replenishing seeds, and multiple seed discharge holes are evenly distributed around the circumference of the seed storage box. The sides of the seed storage boxes opposite the arc surface are hollowed out. After assembly, they form a complete sowing wheel. After sowing, the sowing wheel can be disassembled to quickly remove residual seeds, facilitating cleaning of the sowing wheel.

[0008] Preferably, the frame includes a cam, a cam rod, a push rod, and a pull rod. The cam and cam rod have mounting holes for connection to the extension shaft. The cam is coplanar with the lever. When the cam contacts the lever, the moving plate opens, and the seed falls out, completing the sowing process. The push rod is a T-shaped rod, and its horizontal direction is a telescopic rod. The two ends of the push rod in the horizontal direction are respectively connected to the cam rod and the pull rod, and the push rod is threadedly connected to a connecting rod.

[0009] This utility model has the following advantages compared with the prior art:

[0010] 1. The components of this utility model are connected by bolts, tapered pins, and threads, making disassembly and assembly simple and time-saving, which helps to improve work efficiency. The opening and closing of the seed metering device can be controlled by adjusting the length of the telescopic lever, thereby controlling the sowing spacing. It is suitable for a variety of crops, making it a multi-purpose machine and reducing costs.

[0011] 2. The seeder involved in this utility model can be quickly disassembled and assembled, and there are no large-sized parts after disassembly, making it easy to store and carry, and it can be used for long-distance testing.

[0012] 3. The modular seeding wheel of this utility model is easy to disassemble, and the hollow side makes it easy to remove residual seeds, making it highly practical.

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the seed metering device in this utility model.

[0016] Figure 3 This is a schematic diagram of the internal structure of the seed storage box in this utility model.

[0017] Figure 4 This is a schematic diagram of the main structure of the seed storage box in this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] Detailed Implementation

[0020] like Figures 1 to 4 As shown, this utility model includes a seeding wheel, a frame 3, and a press wheel 5. Twelve seed metering devices 1 are installed in a circular array on the seeding wheel. The seeding wheel is rotatably mounted on the frame 3 via an extension shaft. The frame 3 is connected to the press wheel 5 via a connecting rod 4.

[0021] The seed metering device 1 is duckbill shaped and includes a fixed plate 6, a movable plate 7, a spring 8, and a lever 9. The fixed plate 6 is triangular and is fixedly connected to the seeding wheel by screws. The movable plate 7 is hinged to the fixed plate 6 by the lever 9. The lever 9 is an L-shaped rod with one side being a fixed rod and the other side being a telescopic rod. The spring 8 is sleeved on the telescopic rod of the lever 9. The movable plate 7 and the fixed plate 6 together form the seed outlet. The seeding wheel has a seed metering hole communicating with the seed outlet on its circumference.

[0022] In this embodiment, the sowing wheel is composed of two semi-circular seed storage boxes 2 connected by a conical pin. One end face of each seed storage box 2 has a seed inlet for replenishing seeds, and multiple seed discharge holes are evenly distributed along its circumference. The sides of the seed storage box 2 opposite to its arc surface are hollowed out. After assembly, they form a complete sowing wheel. After sowing, the sowing wheel can be disassembled to quickly remove residual seeds, facilitating cleaning. The seed storage box 2 has a groove connected to an extension shaft for transmitting circumferential motion.

[0023] In this embodiment, the frame 3 includes a cam 10, a cam rod 11, a push rod 12, and a pull rod 13. The cam 10 and cam rod 11 have mounting holes for connection to the extension shaft. The cam 10 is coplanar with the lever 9. When the cam 10 contacts the lever 9, the moving piece 7 opens, and the seed falls out, completing the sowing process. The push rod 12 is a T-shaped rod, and its horizontal direction is a telescopic rod. The two ends of the push rod 12 in the horizontal direction are connected to the cam rod 11 and the pull rod 13, respectively. The push rod 12 is threadedly connected to a connecting rod 4.

[0024] In use, fix the seed metering device 1 above the seed dispensing holes of the two seed storage boxes 2 with screws, ensuring that the lever 9 is on the end face of the seed storage box 2 without seed holes, and that all levers 9 are coplanar. Align the pin holes of the two seed storage boxes 2 and fix them with conical pins to form a sowing wheel. Place the cam rod 11 and cam 10 sequentially onto the extended shaft on the side of the sowing wheel with the lever, ensuring that the cam 10 and lever 9 are coplanar, and tighten with nuts. Place the pull rod 13 onto the extended shaft on the other side of the sowing wheel and tighten with nuts. Insert one end of the push rod 12 into the top hole of the cam rod 11, adjust the length of the push rod 12, and insert the other end into the top hole of the pull rod 13 and tighten it. Insert the threaded end of the connecting rod 4 into the lower port of the push rod 12 and tighten it. Connect the press wheel 5 to the connecting rod 4 through a conical pin.

[0025] During sowing, the operator holds the push rod 12 to propel the seeder forward. When the lever 9 contacts the cam 10, the seed metering device 1 opens, enabling sowing. When the lever 9 disengages from the cam 10, the seed metering device 1 closes, preventing sowing. The adjustable length of the telescopic part on the lever 9 can adjust the plant spacing to meet the sowing requirements of different seeds, making it suitable for various experimental scenarios.

[0026] When one type of seed has been sown and it is time to replace it with another, reduce the length of push rod 12 and remove it from the top hole of cam rod 11 and pull rod 13. Remove the conical pin between seed storage boxes 2, shake seed storage boxes 2, and any remaining seeds will quickly fall out from the bottom of seed storage boxes 2 without leaving any residue.

[0027] After sowing, first remove the tapered pin between the press wheel 5 and the connecting rod 4, then remove the connecting rod 4 from the lower end of the push rod 12. Remove the telescopic push rod 12, loosen the nuts at both ends of the connecting shaft, and remove the cam 10, cam rod 11, and pull rod 13 to separate the frame 3. Finally, remove the tapered pin to separate the seed storage box 2 and the connecting shaft. The disassembled seeder is easy to store and carry, and is especially suitable for long-distance trials.

[0028] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any simple modifications, alterations, and equivalent changes made to the above embodiments based on the technical essence of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A portable single-row plot seeder characterized by comprising: It includes a seeding wheel, a frame (3) and a press wheel (5). Multiple seed metering devices (1) are installed in a circular array on the seeding wheel. The seeding wheel is rotatably mounted on the frame (3) via an extension shaft. The frame (3) is connected to the press wheel (5) via a connecting rod (4). The seed metering device (1) is duckbill shaped. The seed metering device (1) includes a fixed plate (6), a moving plate (7), a spring (8), and a lever (9). The fixed plate (6) is triangular and is fixedly connected to the seeding wheel by screws. The moving plate (7) is hinged to the fixed plate (6) by the lever (9). The lever (9) is an L-shaped rod. One side of the lever (9) is a fixed rod, and the other side of the lever (9) is a telescopic rod. The spring (8) is sleeved on the telescopic rod of the lever (9). The moving plate (7) and the fixed plate (6) together form the seed outlet. The seeding wheel has a seed metering hole that communicates with the seed outlet on its circumference.

2. The portable single-row plot seeder of claim 1, wherein: The seeding wheel is composed of two semi-circular seed storage boxes (2) connected together. One end face of the seed storage box (2) is provided with a seed outlet for replenishing seeds, and multiple seed discharge holes are evenly opened in the circumferential direction of the seed storage box (2).

3. The portable single-row experimental seeder according to claim 1, characterized in that, The frame (3) includes a cam (10), a cam rod (11), a push rod (12), and a pull rod (13). The cam (10) and the cam rod (11) are provided with mounting holes for connection to the extension shaft. The cam (10) is coplanar with the lever (9). The push rod (12) is a T-shaped rod. The horizontal direction of the push rod (12) is a telescopic rod. The two ends of the push rod (12) in the horizontal direction are respectively connected to the cam rod (11) and the pull rod (13). The push rod (12) is threadedly connected to the connecting rod (4).

Images