A dual-chamber structure type seed supply device and method

Abstract

The application discloses a double-cavity structure seed supply device and method, which comprises a large seed box, a seed double-cavity distribution device, a single seed box and a precision seed metering device. The seed double-cavity distribution device is fixed to the bottom of the large seed box through bolts, and is combined into an integrated whole through buckles. The outlet of the seed double-cavity distribution device is connected with the single seed box through a ventilation hose, and the outlet of the single seed box is connected with the precision seed metering device. The application can realize centralized seed conveying, and can control and close unnecessary components according to different operation widths. The double-cavity structure can effectively save space and reduce the complexity of the whole machine structure. The automatic start-stop technology can effectively avoid the participation of complex electric control components, simplify the complexity of the whole machine, and realize efficient and high-speed seeding of large seeding equipment.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery research, and in particular to a dual-chamber automatic start-stop seed conveying system and method. Background Technology

[0002] Existing large-scale high-speed seed metering systems generally include a seed box, a seed supply device, and a precision seed metering device. The seed box is connected to the precision seed metering device via the seed supply device. The seed supply device includes mechanical seed supply devices, pneumatic seed supply devices, and pneumatic suction seed supply devices. Among them, the pneumatic seed supply device uses high-speed airflow to form pneumatic conveying in the seed delivery tube, realizing rapid, low-damage, and long-distance seed delivery. For details, see patents CN116649053A, CN211792844U, CN117769935A, CN218499564U, etc. However, most existing pneumatic seed supply devices are single-channel conveyors, resulting in relatively low overall seeding efficiency. Even those with multi-channel conveyors have complex overall structures, and each channel basically only conveys a single seed, making it impossible to centrally convey large seeds. They also cannot achieve automatic start and stop. With the widespread application of large-scale high-efficiency seeding equipment, it is essential to develop an integrated conveying device that can transport large seeds from large seed boxes to individual seed boxes without power. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a dual-chamber automatic start-stop seed conveying system and method, which can centrally convey large seeds and quickly adjust the number of devices according to different working widths, thereby improving the machine's operating performance and work efficiency. Furthermore, the non-powered dual-chamber structure can effectively save space and reduce the complexity of the overall machine structure. The automatic start-stop technology can effectively avoid the involvement of complex electronic control components, thus simplifying the complexity of the entire machine.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0005] In a first aspect, embodiments of the present invention provide a dual-chamber automatic seed start-stop delivery system, including a large seed box, a dual-chamber seed distribution device, individual seed boxes, and a precision seed metering device. The dual-chamber seed distribution device is fixed to the bottom of the large seed box by bolts. The dual-chamber seed distribution device includes two rows of seed chambers arranged sequentially, and an airflow chamber is provided between the two rows of seed chambers along the arrangement direction of the seed chambers. An air inlet is provided at one end of the airflow chamber, and a sealing cover is provided at the other end. An airflow regulating valve is provided on the sealing cover. Each seed chamber is designed with a mixing pipe, and the bottom of the mixing pipe is connected to both the seed chamber and the airflow chamber. The outlet of the mixing pipe is connected to the individual seed box through a ventilation hose, and the outlet of the individual seed box is connected to the precision seed metering device.

[0006] As a further technical solution, the hybridization tube is bent at 90°, and a seed inlet and an airflow inlet are provided at its bottom, with a screen provided at the airflow inlet.

[0007] As a further technical solution, the front and rear seed chambers and the airflow chamber of the seed dual-chamber distribution device are fastened together by a snap fastener to form a whole.

[0008] As a further technical solution, the seed chambers can be independent of each other or connected.

[0009] As a further technical solution, the top of the sidewall of the airflow cavity has two guide plates that slope to the left and right, two straight plates in the middle, and two inclined plates that slope downwards at the bottom, with guide tubes at the ends of the lower inclined plates.

[0010] As a further technical solution, each hybrid tube is also provided with an airflow control port, the opening and closing of which is controlled by rotating an additional airflow regulating valve.

[0011] As a further technical solution, the single seed box includes a box body, the top of which is connected to a seed dual-chamber distribution device via a ventilation hose, and an air circulation screen is provided on the box body. The bottom plate of the single seed box is an inclined bottom plate. A seed outlet is provided at the lower position of the inclined bottom plate, and an air circulation screen is provided at the higher position. The seed outlet is connected to a vertical pipe to send the seeds into a precision seed metering device.

[0012] As a further implementation, the seed inlet and outlet of the individual seed box are diagonally distributed.

[0013] As a further implementation, the airflow sieves are spaced 2mm apart. When the individual seed boxes are sufficiently full, the airflow sieves are covered by seeds, and the airflow automatically stops. When the amount of seeds in the individual seed boxes drops to a sufficient level, the airflow sieves are exposed, and the airflow automatically starts to discharge the seeds through the airflow sieves and transport the seeds to the individual seed boxes.

[0014] Secondly, embodiments of the present invention also provide a method for using a dual-chamber automatic seed start-stop delivery system, comprising the following steps:

[0015] Delivery: The fan airflow enters the seed dual-chamber distribution device through the inlet. At this time, the airflow regulating valve is closed, and the airflow enters the mixing pipe through the bottom outlet in the airflow chamber composed of multiple shells. Under negative pressure, the seeds in the seed chamber are adsorbed into the mixing pipe to complete the seed-air mixing. The seeds are then transported to the individual seed boxes through the ventilation hose under the action of the airflow. When the airflow regulating valve is open, the airflow is directly discharged through the airflow port between the airflow chamber and the mixing pipe, without producing a delivery function.

[0016] Storage: Seeds delivered to individual seed boxes are stored. When the seeds in an individual seed box completely cover the airflow screen, airflow ceases, and seed delivery automatically stops. The seeds stored in the individual seed boxes, under gravity, enter the seed metering device through the seed outlet and vertical guide tube. Under the action of the precision seed metering device, the seeds in the individual seed boxes are gradually consumed. When the amount of seeds in the individual seed boxes decreases sufficiently, the airflow screen is exposed again, and airflow automatically resumes. Seeds from the dual-chamber seed distribution device are then delivered back to the individual seed boxes until the airflow screen is completely covered by seeds, at which point delivery stops. At this time, seeds from the large seed box also gradually flow into the dual-chamber seed distribution device.

[0017] Seed metering: The precision seed metering device, under negative pressure, adsorbs seeds flowing in from the individual seed boxes, and the motor drives the metering process. As the precision seed metering device operates stably, seeds continuously enter from the individual seed boxes, which in turn drives the dual-chamber seed distribution device to continuously deliver seeds. Seeds enter the dual-chamber seed distribution device from the large seed box, are carried by airflow into the individual seed boxes for storage, and are discharged by their own gravity into the seed metering device, completing the seed metering process.

[0018] Configuration: A dual-chamber seed dispenser, which can be added or removed according to the number of sowing rows. One end of the dual-chamber seed dispenser is equipped with the main airflow inlet, and the other end is equipped with a sealing cover. Adjacent housings are fitted together via side grooves and bosses; multiple housings are connected using screws.

[0019] The beneficial effects of the above embodiments of the present invention are as follows:

[0020] (1) By rationally setting the positions of the seed chamber, airflow chamber and mixing tube, the present invention enables all seed chambers to share one airflow chamber, and controls the airflow of multiple seed chambers simultaneously through one airflow chamber. The seed dual-chamber distribution device is a non-powered dual-chamber structure with high space utilization, reducing the complexity of the overall structure and simplifying the overall structure. At the same time, the airflow delivery in the airflow chamber is controlled by the opening and closing of the airflow regulating valve, which can realize row-by-row sowing during sowing operations, bringing more possibilities to sowing operations. The airflow size can also be adjusted by the airflow regulating valve, thereby adjusting the seed delivery amount and improving the sowing operation mode. The automatic start and stop technology of airflow can effectively avoid the participation of complex electronic control components, save costs and reduce the failure rate.

[0021] (2) The individual seed box proposed in this invention is also controlled by an airflow screen. When the individual seed box is full enough, the airflow screen is covered by seeds, and the airflow will automatically stop. When the amount of seeds in the individual seed box drops to a sufficient level, the airflow screen is exposed, and the airflow will automatically start to discharge through the airflow screen and transport the seeds to the individual seed box. The application of the dual-chamber seed automatic start-stop conveying system and method on large-scale seeding equipment greatly improves the operating efficiency of the seeder. Through centralized distribution in large seed boxes, manual intervention is reduced, enabling efficient and high-speed seeding of large-scale seeding equipment. Attached Figure Description

[0022] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0023] Figure 1 This is a schematic diagram of a dual-chamber automatic seed delivery system provided by the present invention;

[0024] Figure 2 This is a front view of a dual-chamber automatic seed delivery system provided by the present invention;

[0025] Figure 3 This is a schematic diagram of the seed dual-cavity distribution device provided by the present invention;

[0026] Figures 4(a) and 4(b) are cross-sectional views of the seed dual-chamber distribution device provided by the present invention;

[0027] Figure 5 This is a schematic diagram of the seed delivery process provided by the present invention;

[0028] Figure 6 This is a schematic diagram of the inclined surface at the bottom of the single seed box provided by the present invention;

[0029] Figure 7 This is an isometric view of the single-species seed box provided by the present invention;

[0030] Among them, 1. Large seed box, 2. Seed dual-chamber distribution device, 3. Individual seed box, 4. Precision seed metering device, 5. Ventilation hose, 201. Air inlet, 202. Shell, 203. Sealing cover, 204. Airflow regulating valve, 205. Pin, 206. Seed inlet, 207. Seed chamber, 208. Airflow chamber; 2021. Screen, 2022. Mixing pipe, 2023. Airflow inlet, 2024. Groove, 2025. Boss; 301. Seed inlet, 302. Seed outlet, 303. Vertical pipe, 304. Airflow screen, 305. Inclined bottom plate, 306. Seed storage box; Detailed Implementation

[0031] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] For ease of description, the words "up," "down," "left," and "right" appearing in this invention only indicate that they are consistent with the up, down, left, and right directions of the accompanying drawings themselves, and do not limit the structure. They are merely for the purpose of facilitating the description of this invention and simplifying the description, and do not indicate or imply that the device or component 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.

[0034] Terminology Explanation: The terms "installation," "connection," "linking," and "fixing" in this invention should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction relationship between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] Example 1:

[0036] This embodiment provides a dual-chamber automatic start-stop seed delivery system, such as... Figure 1 As shown, the device includes a large seed box 1, a dual-chamber seed distribution device 2, a single seed box 3, a precision seed metering device 4, and a ventilation hose 5. The bottom of the large seed box 1 is fixed to the dual-chamber seed distribution device 2 with bolts. The dual-chamber seed distribution device 2 is assembled into a whole by snap-fit. Its outlet is connected to the single seed box 3 through the ventilation hose 5. The outlet of the single seed box 3 is connected to the precision seed metering device 4. The seeds stored in the large seed box 1 fill the airflow chamber 208 of the dual-chamber seed distribution device 2 under the action of gravity. The air inlet 201 sends the airflow provided by the fan or other pressurized air source into the airflow chamber 208 of the dual-chamber seed distribution device 2. In this embodiment, the dual-chamber seed distribution device 2 is a non-powered dual-chamber structure. The entire seed supply process is driven by positive pressure airflow.

[0037] As a further implementation, the seed dual-chamber distribution device 2 includes two rows of seed chambers 207 arranged sequentially. Along the arrangement direction of the seed chambers 207, an airflow chamber 208 is provided between the two rows of seed chambers 207. One end of the airflow chamber 208 is provided with an air inlet 201, and the other end is provided with a sealing cover plate 203. An airflow regulating valve 204 is provided on the sealing cover plate 203. Each seed chamber is fitted with a seed mixing tube 2022. The bottom of the seed mixing tube 2022 is connected to both the seed chamber 207 and the airflow chamber 208. The outlet of the seed mixing tube 2022 is connected to a single seed box 3 through a ventilation hose. The outlet of the single seed box 3 is connected to a precision seed metering device 4.

[0038] The aforementioned dual-chamber automatic seed delivery system, through the rational setting of the positions of the seed chamber 207, airflow chamber 208, and seed mixing pipe 2022, allows all seed chambers 207 to share a single airflow chamber 208. This single airflow chamber 208 simultaneously controls the airflow of multiple seed chambers 207. Furthermore, the dual-chamber seed distribution device features a dual-chamber structure, resulting in high space utilization and reduced complexity of the overall structure, thus simplifying the overall design. Simultaneously, the airflow delivery within the airflow chamber 208 is controlled by the opening and closing of the airflow regulating valve 204. This enables inter-row sowing during seeding operations, providing more possibilities for the sowing process. The airflow magnitude can also be adjusted using the airflow regulating valve 204, thereby regulating the seed delivery volume and improving the sowing operation method. The automatic airflow start-stop technology effectively avoids the involvement of complex electronic control components, saving costs and reducing the failure rate.

[0039] Furthermore, the main body of the seed chamber 207 and the airflow chamber 208 is mainly processed from the shell 202; the air inlet 201 is fixed to one side of the shell 202 by screws, and a sealing cover plate 203 is fixed to the other side of the shell 202; the airflow regulating valve 204 is placed on the sealing cover plate 203 and extends into the interior of the shell 202.

[0040] Furthermore, the main bodies of the seed chamber 207 and the airflow cavity 208 can be integrally formed by injection molding or assembled by splicing. In this embodiment, the seed chamber 207 and the airflow cavity 208 are assembled by splicing, and multiple shells 202 are combined together to form the seed chamber 207 and the airflow cavity 208. The airflow cavity 208 is located between the symmetrical seed chambers 207. Specifically, as shown in Figures 4(a) and 4(b), a groove 2 is provided on the right side of the shell 202. 024, the left side is provided with a boss 2025, and the two sides are evenly distributed with positioning pins 205; the adjacent shells 202 are connected by the groove 2024 and the boss 2025, and are fixed by buckles after being fitted; the groove 2024 and the boss 2025 are tightly connected to ensure airtightness, the airflow enters the airflow chamber 208 through the air inlet 201, and the seeds inside the seed chamber 207 are mixed with the air and enter the mixing pipe 2022 under the action of the airflow. The seeds are transported to the seed inlet 301 of the individual seed box 3 along the mixing pipe 2022 and the ventilation hose 5.

[0041] Furthermore, the seed chambers 207 are located on both sides of the seed dual-chamber distribution device 2, with a row of seed chambers 207 on each side. Each seed chamber 207 has an open top, and the top is connected to the large seed box 1.

[0042] Furthermore, the mixed seed tube 2022 is bent at 90°, and two openings are provided at the bottom of the mixed seed tube 2022. One opening is connected to the airflow chamber 208, and the other opening is connected to the seed chamber 207. The opening connected to the airflow chamber 208 is the airflow inlet 2023, and the opening connected to the seed chamber 207 is the seed inlet 206. A screen 2021 is provided at the airflow inlet 2023. The main function of the screen 2021 is to separate the middle cavity from the seeds, preventing the seeds from flowing into the middle airflow chamber 208. When discharging seeds, the airflow passes through the bottom screen 2021 and enters the mixed seed tube 2022, while preventing the seeds from entering the airflow chamber 208. That is, the entire airflow chamber 208 and the seed chamber 207 are separated.

[0043] Furthermore, each hybrid seed tube 2022 is also provided with an airflow control port. The opening and closing of the airflow control port is controlled by rotating another airflow regulating valve, thereby realizing individual control of each hybrid seed tube 2022. During the sowing operation, row-by-row sowing can be realized, bringing more possibilities to the sowing operation.

[0044] Furthermore, this embodiment can also adjust the airflow size through an airflow regulating valve, thereby adjusting the seed delivery amount of each or all mixed seed tubes 2022, thus improving the sowing operation method; the automatic airflow start-stop technology can effectively avoid the involvement of complex electronic control components, saving costs and reducing the failure rate.

[0045] Furthermore, such as Figure 6 , Figure 7 As shown, the individual seed box 3 in this embodiment includes a box body with an airflow screen 304 installed on the box body. The bottom plate of the individual seed box 3 is a 30° inclined bottom plate. A seed outlet 302 is located at the lowest position of the inclined bottom plate, and the airflow screen 304 is located at the highest position. The seed outlet 302 is connected to a vertical pipe 303 to deliver the seeds into the precision seed metering device 4. The 30° inclined bottom plate of the individual seed box 3 allows the seeds to preferentially fill the corner where the seed outlet 302 is located after entering the individual seed box 3. The seed outlet 302 is connected to the vertical pipe 303 to deliver the seeds into the precision seed metering device 4. Because the bottom plate is a 30° inclined bottom plate 305, the top of the airflow screen 304 is higher than the seed outlet 302.

[0046] When the seed box 3 is full enough, the airflow screen 304 is covered by the seeds, and the airflow will automatically stop. When the amount of seeds in the seed box 3 drops to a sufficient level, the airflow screen 304 is exposed, and the airflow will automatically start to discharge through the airflow screen 304 and transport the seeds to the seed box 3.

[0047] As a further implementation, the seeds in the individual seed box 3 enter the seed storage box 306 of the precision seed metering device 4 through the vertical pipe 303 from the seed outlet 302 under the action of gravity, and no power is involved in the whole process.

[0048] Those skilled in the art can understand a dual-chamber automatic seed delivery system such as Figure 3 Figures 4(a), 4(b) and Figure 5 The invention and all its features can be fully understood by examining its distribution and use.

[0049] When the dual-chamber automatic seed conveying system is working, the seeds in the large seed box 1 move along... Figure 5 The red direction enters the seed chamber 207 of the seed dual-chamber distribution device 2, and the airflow follows... Figure 5 The seeds, as indicated by the green arrow in the dual-chamber seed distribution device 2, pass through the screen 2021 and enter the mixing tube 2022. The airflow characteristics cause the seeds to be agitated, which causes the seeds to follow the airflow from the large seed box 1 to the dual-chamber seed distribution device 2, and then to the individual seed box 3.

[0050] The bottom plate of the individual seed box 3 is inclined at 30°, which allows seeds to fill the corner of the seed outlet 302 first after entering the individual seed box 3. The seed outlet 302 is connected to the vertical pipe 303, which delivers the seeds into the precision seed metering device 4. Because the bottom plate is inclined at 30° 30° 305 and the top of the air flow screen 304 is higher than the seed outlet 302, seeds can always be present at the location of the seed outlet 302, and there will be no seed interruption.

[0051] Example 2:

[0052] This embodiment provides a method for using a dual-chamber structure conveying device for transporting large-grain seeds, including the following steps:

[0053] Delivery: The fan airflow enters the seed dual-chamber distribution device through the inlet. At this time, the airflow regulating valve is closed, and the airflow enters the mixing pipe through the bottom outlet in the airflow chamber composed of multiple shells. Under negative pressure, the seeds in the seed chamber are adsorbed into the mixing pipe to complete the seed-air mixing. The seeds are then transported to the individual seed boxes through the ventilation hose under the action of the airflow. When the airflow regulating valve is open, the airflow is directly discharged through the airflow port between the airflow chamber and the mixing pipe, without producing a delivery function.

[0054] Storage: Seeds delivered to individual seed boxes are stored. When the seeds in an individual seed box completely cover the airflow screen, airflow ceases, and seed delivery automatically stops. The seeds stored in the individual seed boxes, under gravity, enter the seed metering device through the seed outlet and vertical guide tube. Under the action of the precision seed metering device, the seeds in the individual seed boxes are gradually consumed. When the amount of seeds in the individual seed boxes decreases sufficiently, the airflow screen is exposed again, and airflow automatically resumes. Seeds from the dual-chamber seed distribution device are then delivered back to the individual seed boxes until the airflow screen is completely covered by seeds, at which point delivery stops. At this time, seeds from the large seed box also gradually flow into the dual-chamber seed distribution device.

[0055] Seed metering: The precision seed metering device, under negative pressure, adsorbs seeds flowing in from the individual seed boxes, and the motor drives the metering process. As the precision seed metering device operates stably, seeds continuously enter from the individual seed boxes, which in turn drives the dual-chamber seed distribution device to continuously deliver seeds. Seeds enter the dual-chamber seed distribution device from the large seed box, are carried by airflow into the individual seed boxes for storage, and are discharged by their own gravity into the seed metering device, completing the seed metering process.

[0056] Configuration: A dual-chamber seed dispenser, which can be added or removed according to the number of sowing rows. One end of the dual-chamber seed dispenser is equipped with the main airflow inlet, and the other end is equipped with a sealing cover. Adjacent housings are fitted together via side grooves and bosses; multiple housings are connected using screws.

[0057] In response to the need for centralized seed transport in the efficient operation of large-scale seeding equipment, the inventors designed an integrated transport device that transports large seeds from large seed boxes to small seed boxes in individual seeding units. Combining pneumatic transport technology and precision seed metering technology, it enables efficient and high-speed seeding of large-scale seeding equipment.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A dual-chamber automatic seed delivery system, characterized in that, The system includes a large seed box, a dual-chamber seed distribution device, a single seed box, and a precision seed metering device. The dual-chamber seed distribution device is bolted to the bottom of the large seed box. The dual-chamber seed distribution device includes two rows of seed chambers arranged sequentially, and an airflow chamber is provided between the two rows of seed chambers along the arrangement direction of the seed chambers. One end of the airflow chamber is provided with an air inlet, and the other end is provided with a sealing cover plate. An airflow regulating valve is provided on the sealing cover plate. Each seed chamber is fitted with a mixing tube. The bottom of the mixing tube is provided with a seed inlet and an airflow inlet. The mixing tube is connected to the seed chamber and the airflow chamber through the seed inlet and the airflow inlet, respectively. The outlet of the mixing tube is connected to the seed inlet of the single seed box through a ventilation hose. The seed outlet at the bottom of the single seed box is connected to the precision seed metering device. The individual seed box includes a box body with an inclined bottom plate; a seed outlet is set at the lower position of the inclined bottom plate, and an air circulation screen is set at the higher position of the inclined bottom plate; When the individual seed box is full of seeds, the airflow screen is covered by seeds, and the airflow will automatically stop. When the amount of seeds in the individual seed box drops to a sufficient level, the airflow screen is exposed, and the airflow will automatically start to discharge the seeds through the airflow screen and transport them to the individual seed box.

2. The dual-chamber seed automatic start-stop conveying system as described in claim 1, characterized in that, The hybrid tube is bent at 90°, and a screen is provided at the airflow inlet.

3. The dual-chamber seed automatic start-stop delivery system as described in claim 1, characterized in that, The front and rear seed chambers and the airflow chamber of the seed dual-chamber distribution device are fastened together by snap-fit ​​to form a whole.

4. The dual-chamber seed automatic start-stop delivery system as described in claim 1, characterized in that, The seed chambers can be independent of each other or connected.

5. The dual-chamber seed automatic start-stop conveying system as described in claim 1, characterized in that, The top of the sidewall of the airflow cavity consists of two guide plates that slope to the left and right, two straight plates in the middle, and two inclined plates that slope downwards at the bottom, with guide tubes at the ends of the lower inclined plates.

6. The dual-chamber seed automatic start-stop delivery system as described in claim 1, characterized in that, Each of the hybrid tubes is also provided with an airflow control port, the opening and closing of which is controlled by rotating an additional airflow regulating valve.

7. The dual-chamber seed automatic start-stop delivery system as described in claim 1, characterized in that, The inlet and outlet of the individual seed box are diagonally distributed.

8. The dual-chamber seed automatic start-stop conveying system as described in claim 1, characterized in that, The spacing of the airflow screen is 2mm.

9. The method of using the dual-chamber seed automatic start-stop delivery system as described in any one of claims 1-8, characterized in that, The steps include the following: The fan airflow enters the seed dual-chamber distribution device through the air inlet. The airflow regulating valve on the sealing cover is closed. The airflow enters the mixing pipe through the air inlet in the airflow chamber composed of multiple shells. Under negative pressure, the seeds in the seed chamber are adsorbed into the mixing pipe to complete the seed-air mixing. The seeds are then transported to the individual seed boxes through the ventilation hose under the action of airflow. When the airflow regulating valve on the sealing cover is open, the airflow is discharged directly through the airflow regulating valve and does not produce a transporting effect. Seeds delivered to individual seed boxes are stored. When the seeds in an individual seed box completely cover the airflow screen, the airflow stops, and seed delivery automatically stops. The seeds stored in the individual seed boxes are then fed into the seed metering device through the vertical seed guide tube under the influence of gravity. Under the action of the precision seed metering device, the seeds in the individual seed boxes are gradually consumed. When the amount of seeds in the individual seed boxes drops to a sufficient level, the airflow screen is exposed again, and the airflow automatically resumes. Seeds from the dual-chamber seed distribution device are then delivered back to the individual seed boxes until the airflow screen is covered by seeds and stops. At this time, seeds from the large seed box also gradually flow into the dual-chamber seed distribution device. The precision seed metering device adsorbs seeds flowing in from the individual seed box under negative pressure, and the motor drives the seed metering process. As the precision seed metering device operates stably, seeds continuously enter the precision seed metering device from the individual seed boxes, which in turn drives the seed dual-chamber distribution device to continuously deliver seeds. Seeds enter the seed dual-chamber distribution device from the large seed box, are carried by the airflow into the individual seed boxes for storage, and are discharged into the seed metering device under their own gravity, thus completing the seed metering process.

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