Multi-channel seed-metering no-tillage seeding device

Abstract

The utility model discloses a multi-channel seed-metering no-tillage seeding device. Comprising a machine frame, a seed storage box fixedly connected to the upper end of the machine frame, two rolling wheels rotationally installed on the machine frame, a fixing frame fixedly connected to the upper end of the machine frame, an inflation mechanism arranged on the fixing frame, a controller fixedly connected to the side wall of the fixing frame, a ditching mechanism arranged on the machine frame and an air conveying mechanism arranged on the fixing frame. The seed feeding box is fixedly connected to the discharging end of the seed storage box, the seed discharging pipe is fixedly connected to the lower end of the seed feeding box, the pressing mechanism is arranged on the rack, the seed spraying box is fixedly connected to the lower portion of the peripheral wall of the seed discharging pipe in a penetrating mode, an air inlet pipe is fixedly connected to the side wall of the seed spraying box in a penetrating mode, and a second valve body is arranged on the air inlet pipe. The seeder has the advantage that the synchronous or selective operation of soil covering seeding and earth surface seeding can be realized according to the light requirement and soil jacking capability difference of seeds.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically a multi-channel seeding and no-till seeding device. Background Technology

[0002] No-till seeding technology, as a core component of conservation tillage, has been widely used in modern agriculture because it can effectively reduce soil erosion by wind and water, conserve moisture, and increase soil organic matter content. Existing no-till seeding devices usually integrate functions such as furrowing, seeding, soil covering, and compaction. The seedbed is compacted by a compaction wheel to ensure that the seeds are in close contact with the soil, so as to ensure that the seeds absorb water and germinate, while reducing soil voids and preventing moisture loss.

[0003] However, most existing no-till seeders have certain limitations in their design. Their seed dispensing process is usually standardized, meaning that all types of seeds must go through the same process. After being dispensed by the seed meterer, the seeds fall into the seed furrow through the seed guide tube, then are covered with soil by the soil covering component, and finally compacted by the roller. This method cannot simultaneously press some seeds into the soil and sow others on the soil surface, and needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a multi-channel seeding and no-till seeding device, which has the advantage of being able to perform simultaneous or selective operations of soil covering seeding and surface seeding based on the differences in seed light requirements and soil-penetrating ability, thus solving the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multi-channel seed metering and no-till seeding device includes a frame, a seed storage box fixed to the upper end of the frame, two rollers rotatably mounted on the frame, a fixed frame fixed to the upper end of the frame, an inflation mechanism set on the fixed frame, a controller fixed to the side wall of the fixed frame, a furrowing mechanism set on the frame, an air conveying mechanism set on the fixed frame, a seed inlet box fixed to the discharge end of the seed storage box, a seed metering pipe fixed to the lower end of the seed inlet box, a pressing mechanism set on the frame, and a seed spraying box that is fixed to the lower part of the outer peripheral wall of the seed metering pipe. An air inlet pipe is fixed to the side wall of the seed spraying box, and a second valve body is provided on the air inlet pipe.

[0007] One outlet of the gas conveying mechanism is connected to the inside of the seeding pipe, and the other outlet of the gas conveying mechanism is connected to the inlet of the inlet pipe through a pipe.

[0008] The seed sprayer box is equipped with a seed-separating mechanism for separating the seeds.

[0009] Preferably, the inflation mechanism includes a fixed box fixed to the lower end of the fixed frame, an air pump fixed to the inner wall of the fixed box, and a first air outlet pipe disposed at the air outlet port of the air pump.

[0010] It is worth noting that the inflation mechanism provides an independent, controllable and clean air source for the device through the integrated air pump. Its advantages are that by installing the air pump in a fixed box, the noise during operation is effectively reduced and field dust is prevented from entering the air pump, thereby improving the environmental adaptability and operational reliability of the equipment. The controller can adjust the power of the air pump, thus flexibly adapting to the conveying needs of seeds of different particle sizes and weights, achieving multiple uses in one machine.

[0011] Preferably, the trenching mechanism includes a bracket fixed to the frame and a trencher rotatably mounted on the bracket.

[0012] It is worth noting that the ditching mechanism uses a rotating ditcher, which has a simple structure, low resistance, and the rolling ditching method causes little disturbance to the soil, which helps to maintain the soil's aggregate structure and conforms to the basic principles of conservation tillage.

[0013] Preferably, the gas conveying mechanism includes two uprights fixed to the lower end of the fixed frame, an air inflator fixed to the two uprights, a plurality of gas conveying pipes fixed to the lower end of the air inflator, a second air outlet pipe that is fixed to the outer peripheral wall of the gas conveying pipe, and a first valve body disposed on the second air outlet pipe, wherein the lower end of the gas conveying pipe is fixed to the side wall of the seeding pipe.

[0014] It is worth noting that the core advantage of this air delivery mechanism lies in its unique dual-channel air path design. The air filling pipe serves as the main air chamber, and multiple air delivery pipes distribute the airflow to each seeding unit. Crucially, each air delivery pipe is equipped with a second air outlet pipe, which is independently controlled by the first valve body. This allows the airflow from the air pump to be precisely divided: one airflow enters the seeding pipe directly through the air delivery pipe, using positive pressure to blow the seeds out of the seed inlet box, achieving conventional soil covering and sowing; the other airflow is introduced into the spraying box through the second air outlet pipe, pipe, and air inlet pipe. Through the controller coordinating the first and second valve bodies, a single mode or two modes can be flexibly selected for simultaneous operation, thereby achieving the simultaneous sowing of some seeds in the seed furrow and spraying of other seeds onto the ground surface within the same stroke.

[0015] Preferably, the pressing mechanism includes multiple support blocks fixed to the frame and pressing wheels rotatably mounted on the support blocks.

[0016] It is worth noting that each roller can independently adapt to the undulations of the ground, making it easy to press the seeds into the soil.

[0017] Preferably, the seeding mechanism includes two first through holes that pass through the upper and lower ends of the seed spraying box and a U-shaped rod that is fixed to the inner wall of the four first through holes. The U-shaped rod has a U-shaped structure.

[0018] It is worth noting that when the high-speed airflow carrying the seeds enters the seed spraying box from the air inlet pipe, it first impacts the arc-shaped inner wall of the U-shaped rod. The blocking effect of the U-shaped rod causes the airflow direction to become turbulent and diffused, and the flow velocity is reduced. During this process, the seeds are effectively separated from the airflow and fall. At the same time, the U-shaped rod naturally divides the falling seed flow into two streams, which are discharged through their respective sides, realizing multi-channel seed discharge.

[0019] Preferably, the seeding mechanism includes two second through holes extending through the upper end of the seed sprayer box, two third through holes extending through the lower end of the seed sprayer box, an upper guide plate fixed to the upper part of one side of the inner wall of the seed sprayer box, and a lower guide plate fixed to the lower part of one side of the inner wall of the seed sprayer box. The upper guide plate and the lower guide plate are close to each other at their respective ends, and the integrated structure formed by the upper guide plate and the lower guide plate is Y-shaped.

[0020] It is worth noting that the Y-shaped guide plate seeding mechanism achieves active and precise guidance and diversion of the seed flow. Its advantage is that the seed-air mixture entering the seed spraying box first impacts the inclined surface of the upper guide plate. The upper guide plate buffers and guides the seeds, causing them to mainly flow to the other side of the seed spraying box, avoiding the accumulation caused by the seeds falling vertically. The Y-shaped structure can divide the falling seeds into two, guiding them to the second and third through holes respectively, realizing multi-channel seeding.

[0021] Preferably, the inclined surface of the upper guide plate is located directly below the second through hole, and the second through hole and the third through hole correspond to each other in the vertical direction.

[0022] It is worth noting that the second and third through holes correspond vertically, forming a clear and smooth seed falling channel. This layout, combined with the Y-shaped guide plate, facilitates multi-channel seeding.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] 1. This utility model constructs a selectable dual-channel pneumatic seeding system by coordinating the air supply mechanism and the controller to control the first valve body and the second valve body. During operation, the operator can, as needed, instruct all the airflow to enter the seed discharge pipe to blow the seeds into the seed furrow for soil covering and sowing, or instruct part of the airflow to be diverted to the seed spray box to blow the seeds to the ground surface. It can also make the two airflows work at the same time. This design allows the device to flexibly realize the composite operation of covering all the seeds with soil or simultaneously carrying out "part of the seeds covered with soil and the other part of the seeds exposed on the ground surface" in one piece of equipment and one operation stroke, thereby solving the problem that the existing technology cannot meet the two sowing requirements at the same time.

[0025] 2. The seed spraying box of this utility model is equipped with two seed-distributing mechanisms, which significantly improves the uniformity and applicability of surface sowing. The U-shaped rod-type seed-distributing mechanism divides the seed flow evenly into two streams on the left and right sides through physical blocking and segmentation to achieve wide strip-shaped distribution, which is suitable for small-grain dense sowing crops such as alfalfa. The Y-shaped guide plate-type seed-distributing mechanism guides the seed flow precisely to the second and third through holes in different directions above and below through active guidance, which can realize the positioning of seeds on the ground or shallow sowing, meeting the higher requirements of sowing consistency for crops such as celery. These two mechanisms give the device diversified and high-quality surface sowing capabilities.

[0026] 3. This utility model efficiently integrates and coordinates the functions of furrowing, pneumatic dual-channel seeding / spraying, and compaction. The furrow opener creates the seed furrow; the independent air pump provides stable power to ensure sowing accuracy; the compaction wheel compacts the seeds in the furrow while only lightly pressing the seeds on the ground. The entire system achieves flexible customization and precise execution of sowing modes while minimizing soil disturbance, significantly improving the adaptability and germination quality of various crops with special sowing requirements, such as carrots and lettuce, and is highly practical. Attached Figure Description

[0027] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0028] Figure 2 The diagram shown is a three-dimensional structural schematic of the inflation mechanism of this utility model.

[0029] Figure 3 The diagram shown is a three-dimensional structural schematic of the trenching mechanism of this utility model;

[0030] Figure 4 The diagram shown is a three-dimensional structural schematic of the gas delivery mechanism of this utility model.

[0031] Figure 5 The diagram shown is a three-dimensional structural schematic of the pressing mechanism of this utility model;

[0032] Figure 6 The diagram shown is a three-dimensional structural schematic of the seed sprayer box of this utility model;

[0033] Figure 7 The diagram shown is a three-dimensional structural schematic of the first embodiment of the sorting mechanism of this utility model;

[0034] Figure 8 The diagram shown is a three-dimensional structural schematic of the second embodiment of the sorting mechanism of this utility model.

[0035] Reference numerals: 1. Frame; 2. Seed storage box; 3. Roller; 4. Fixing frame; 5. Inflation mechanism; 501. Fixing box; 502. Air pump; 503. First air outlet pipe; 6. Controller; 7. Furrowing mechanism; 701. Support; 702. Furrow opener; 8. Air supply mechanism; 801. Stand; 802. Inflation pipe; 803. Air supply pipe; 804. Second air outlet pipe; 805. First valve body; 9. Seed inlet box; 10. Seed discharge pipe; 11. Spraying box; 1101. First through hole; 1102. U-shaped rod; 1103. Second through hole; 1104. Third through hole; 1105. Upper guide plate; 1106. Lower guide plate; 12. Air inlet pipe; 13. Second valve body; 14. Support block; 15. Pressing wheel. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] To address the issue that existing single seeding processes cannot meet the sowing requirements of light-demanding and small seeds, the following technical solution is proposed. Please refer to [link / reference needed]. Figures 1-8 ;

[0038] A multi-channel seed metering and no-till seeding device includes a frame 1, a seed storage box 2 fixed to the upper end of the frame 1, two rollers 3 rotatably mounted on the frame 1, a fixed frame 4 fixed to the upper end of the frame 1, an inflation mechanism 5 set on the fixed frame 4, a controller 6 fixed to the side wall of the fixed frame 4, a furrowing mechanism 7 set on the frame 1, an air conveying mechanism 8 set on the fixed frame 4, a seed inlet box 9 fixed to the discharge end of the seed storage box 2, a seed metering pipe 10 fixed to the lower end of the seed inlet box 9, a pressing mechanism set on the frame 1, and a seed spraying box 11 that is fixed to the lower part of the outer peripheral wall of the seed metering pipe 10. An air inlet pipe 12 is fixed to the side wall of the seed spraying box 11, and a second valve body 13 is provided on the air inlet pipe 12.

[0039] One air outlet of the gas conveying mechanism 8 is internally connected to the seed discharge pipe 10, and the other air outlet of the gas conveying mechanism 8 is connected to the air inlet of the air inlet pipe 12 through a pipe.

[0040] The seed spraying box 11 is equipped with a seed separation mechanism for separating seeds.

[0041] In use, the air inflator 5 generates airflow, which is then fed into the air delivery mechanism 8 and into the seed metering pipe 10. This airflow causes the seeds in the seed storage box 2 that have fallen into the seed metering pipe 10 through the seed inlet box 9 to be ejected downwards. Additionally, due to the airflow, some seeds will flow through the seed metering pipe 10 into the seed spraying box 11 and then be sprayed outwards through the seed distribution mechanism. This results in some seeds being pressed into the soil by the pressing mechanism, while the remaining seeds are sprayed directly onto the soil surface.

[0042] In this embodiment, specifically: the inflation mechanism 5 includes a fixed box 501 fixed to the lower end of the fixed frame 4, an air pump 502 fixed to the inner wall of the fixed box 501, and a first air outlet pipe 503 disposed at the air outlet port of the air pump 502.

[0043] In this embodiment, specifically: the trenching mechanism 7 includes a bracket 701 fixed to the frame 1 and a trencher 702 rotatably mounted on the bracket 701.

[0044] In this embodiment, specifically: the gas conveying mechanism 8 includes two uprights 801 fixed to the lower end of the fixed frame 4, an inflation pipe 802 fixed to the two uprights 801, a plurality of gas conveying pipes 803 fixed to the lower end of the inflation pipe 802, a second gas outlet pipe 804 fixed to the outer peripheral wall of the gas conveying pipe 803, and a first valve body 805 disposed on the second gas outlet pipe 804. The lower end of the gas conveying pipe 803 is fixed to the side wall of the seeding pipe 10.

[0045] In this embodiment, specifically, the pressing mechanism includes multiple support blocks 14 fixed to the frame 1 and pressing wheels 15 rotatably mounted on the support blocks 14.

[0046] Example 1: In this example, the seed-separating mechanism includes two first through holes 1101 that are opened through the upper and lower ends of the seed spraying box 11 and a U-shaped rod 1102 that is fixed to the inner wall of the four first through holes 1101. The U-shaped rod 1102 has a U-shaped structure. The seed-separating mechanism of the U-shaped rod 1102 provided in this example has an extremely simple and robust structure, no moving parts, and high reliability. Its working principle is to use the outer surface of the U-shaped rod 1102 to impact and block the high-speed seed-air mixture flow, so that the seeds are effectively separated and the falling seed flow is naturally divided into two streams, which are discharged through the two sides of the U-shaped rod 1102 or the two first through holes 1101 at the upper and lower ends of the seed spraying box 11.

[0047] Example 2: In this example, the seed-separating mechanism includes two second through holes 1103 penetrating the upper end of the seed spraying box 11, two third through holes 1104 penetrating the lower end of the seed spraying box 11, an upper guide plate 1105 fixed to the upper part of one side of the inner wall of the seed spraying box 11, and a lower guide plate 1106 fixed to the lower part of one side of the inner wall of the seed spraying box 11. The upper guide plate 1105 and the lower guide plate 1106 are close to each other at their respective ends, and the integrated structure formed by the upper guide plate 1105 and the lower guide plate 1106 is Y-shaped. The Y-shaped guide plate seed-separating mechanism provided in this example realizes the rapid separation of the seed flow. The integrated structure formed by the upper guide plate 1105 and the lower guide plate 1106 can guide the seeds transported by the airflow to the upper second through hole 1103 or the lower third through hole 1104 for discharge.

[0048] In this embodiment, specifically: the inclined surface of the upper guide plate 1105 is located directly below the second through hole 1103, and the second through hole 1103 and the third through hole 1104 are corresponding in the vertical direction. This spatial position design makes the seeding path clear and efficient, and facilitates the rapid discharge of seeds.

[0049] Working principle: When the device is driven forward by the traction equipment, the roller 3 on the frame 1 rotates accordingly. At the same time, the ditch opener 702 in the ditching mechanism 7 rotates on the support 701 and performs ditching operations on the soil. The air pump 502 in the fixed box 501 fixed to the lower end of the fixed frame 4 in the air filling mechanism 5 starts, generates airflow and outputs it through the first air outlet pipe 503.

[0050] The airflow enters the inflation pipe 802 of the air supply mechanism 8 and is transported through multiple air supply pipes 803. Part of the airflow enters the seed discharge pipe 10 through the second air outlet pipe 804 and under the control of the first valve body 805. The other part of the airflow is transported through the pipeline to the air inlet pipe 12 that is fixed through the side wall of the seed spraying box 11 and its opening and closing are controlled by the second valve body 13.

[0051] The seeds in the seed storage box 2 fall into the seed inlet box 9 through the discharge end and further enter the seed discharge pipe 10; the airflow entering the seed discharge pipe 10 blows the seeds downward, causing them to fall along the seed discharge pipe 10.

[0052] At the same time, the airflow entering the air intake pipe 12 carries a portion of the seeds into the seed spraying box 11. The seed-dividing mechanism provided on the seed spraying box 11 divides the seeds: In embodiment 1, the seed-dividing mechanism includes two first through holes 1101 that are opened through the upper and lower ends of the seed spraying box 11 and a U-shaped rod 1102 that is fixed to the inner wall of the four first through holes 1101. The U-shaped rod 1102 impacts and divides the seed flow, so that the seeds are discharged outward through both sides of the U-shaped rod 1102 and the first through holes 1101.

[0053] In embodiment 2, the seed dispensing mechanism includes two second through holes 1103 penetrating the upper end of the seed spraying box 11, two third through holes 1104 penetrating the lower end of the seed spraying box 11, an upper guide plate 1105 fixed to the upper part of one side of the inner wall of the seed spraying box 11, and a lower guide plate 1106 fixed to the lower part of one side of the inner wall of the seed spraying box 11. The Y-shaped structure formed by the upper guide plate 1105 and the lower guide plate 1106 guides the seed flow to the second through holes 1103 and the third through holes 1104 respectively for discharge.

[0054] Finally, the seeds falling through the seed pipe 10 are pressed into the trenched soil by the pressing wheel 15, which is rotated and mounted on the support block 14 in the pressing mechanism, while the seeds discharged through the seed spraying box 11 are sprayed onto the soil surface, thereby realizing the layered or separate sowing of light-requiring seeds and small seeds. Throughout the entire process, the controller 6, which is fixed to the side wall of the fixed frame 4, coordinates and controls the various electrical components to ensure the stable operation of the sowing process.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A multi-channel seeding and no-till seeding device, characterized in that: The device includes a frame (1), a seed storage box (2) fixed to the upper end of the frame (1), two rollers (3) rotatably mounted on the frame (1), a fixed frame (4) fixed to the upper end of the frame (1), an inflation mechanism (5) set on the fixed frame (4), a controller (6) fixed to the side wall of the fixed frame (4), a trenching mechanism (7) set on the frame (1), an air conveying mechanism (8) set on the fixed frame (4), a seed inlet box (9) fixed to the discharge end of the seed storage box (2), a seed discharge pipe (10) fixed to the lower end of the seed inlet box (9), a pressing mechanism set on the frame (1), and a seed spraying box (11) fixed to the lower part of the outer peripheral wall of the seed discharge pipe (10). The side wall of the seed spraying box (11) is fixed to an air inlet pipe (12), and a second valve body (13) is set on the air inlet pipe (12). One outlet of the gas conveying mechanism (8) is internally connected to the seeding pipe (10), and the other outlet of the gas conveying mechanism (8) is connected to the inlet of the inlet pipe (12) through a pipe. The seed sprayer (11) is equipped with a seed separation mechanism for separating seeds.

2. The multi-channel seeding and no-till seeding device according to claim 1, characterized in that: The inflation mechanism (5) includes a fixed box (501) fixed to the lower end of the fixed frame (4), an air pump (502) fixed to the inner wall of the fixed box (501), and a first air outlet pipe (503) provided at the air outlet port of the air pump (502).

3. The multi-channel seeding and no-till seeding device according to claim 1, characterized in that: The trenching mechanism (7) includes a bracket (701) fixed to the frame (1) and a trencher (702) rotatably mounted on the bracket (701).

4. The multi-channel seeding and no-till seeding device according to claim 1, characterized in that: The gas delivery mechanism (8) includes two uprights (801) fixed to the lower end of the fixed frame (4), an air inlet pipe (802) fixed to the two uprights (801), a plurality of gas delivery pipes (803) fixed to the lower end of the air inlet pipe (802), a second air outlet pipe (804) fixed to the outer peripheral wall of the gas delivery pipe (803) through the pipe, and a first valve body (805) provided on the second air outlet pipe (804). The lower end of the gas delivery pipe (803) is fixed to the side wall of the seeding pipe (10) through the pipe.

5. The multi-channel seeding and no-till seeding device according to claim 1, characterized in that: The pressing mechanism includes multiple support blocks (14) fixed to the frame (1) and pressing wheels (15) rotatably mounted on the support blocks (14).

6. The multi-channel seeding and no-till seeding device according to claim 1, characterized in that: The seeding mechanism includes two first through holes (1101) that are opened at the upper and lower ends of the seed spraying box (11) and a U-shaped rod (1102) that is fixed to the inner wall of the four first through holes (1101). The U-shaped rod (1102) has a U-shaped structure.

7. The multi-channel seeding and no-till seeding device according to claim 1, characterized in that: The seeding mechanism includes two second through holes (1103) that penetrate the upper end of the seed spraying box (11), two third through holes (1104) that penetrate the lower end of the seed spraying box (11), an upper guide plate (1105) fixed to the upper part of one side of the inner wall of the seed spraying box (11), and a lower guide plate (1106) fixed to the lower part of one side of the inner wall of the seed spraying box (11). The upper guide plate (1105) and the lower guide plate (1106) are close to each other at one end, and the integrated structure formed by the upper guide plate (1105) and the lower guide plate (1106) is Y-shaped.

8. The multi-channel seeding and no-till seeding device according to claim 7, characterized in that: The inclined surface of the upper guide plate (1105) is located directly below the second through hole (1103), and the second through hole (1103) and the third through hole (1104) correspond to each other in the vertical direction.

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