Small-sized seed metering device and seed metering method

Abstract

The application relates to a small-sized quantitative seed taking device and method, and relates to the technical field of seed taking, which is used for solving the problems that manual counting operation is inconvenient and that seed exposure in a seed storage bottle for a long time is not conducive to storage when a required amount of seed is obtained by manually counting after the seed is poured out from the seed storage bottle. The device comprises a handle, a seed taking rod and a driving piece. The handle is internally provided with multiple independent sliding grooves which penetrate the end face of one end of the handle. The number of the seed taking rods is equal to that of the sliding grooves, and the seed taking rods and the sliding grooves are one-to-one corresponding. The seed taking rods are in sliding connection with the corresponding sliding grooves. The driving piece is arranged between the seed taking rods and the handle and is used for driving the seed taking rods to move along the sliding grooves. The outer wall of the seed taking rod is provided with ten seed taking grooves which are arranged at equal intervals along the length direction of the rod. The application can realize quick seed taking of the seed in the seed storage bottle, and the opening time of the bottle mouth of the seed storage bottle is short.

Description

Technical Field

[0001] This invention relates to the field of seed collection technology, specifically a small-scale quantitative seed collection device and seed collection method. Background Technology

[0002] In breeding work, seeds are typically stored in seed storage bottles, which are then placed in a low-temperature, dry room. When seeds are needed for breeding research, the bottle cap is opened, the seeds are poured out, and the required quantity is manually counted. If too many seeds are poured out at once, the remaining seeds must be returned to the bottle; if not enough seeds are poured out, more seeds must be poured out and counted again until the required quantity is reached. Opening the bottle exposes the seeds to the external environment for an extended period, which is extremely detrimental to seed storage. Summary of the Invention

[0003] The purpose of this invention is to provide a small-scale quantitative seed extraction device and method to solve the problems of inconvenience in manually counting seeds after pouring them out of the seed storage bottle and the long-term exposure of seeds in the seed storage bottle, which is not conducive to storage.

[0004] The technical solution adopted by this invention to solve its technical problem is: a small quantitative seed collection device, including a handle, a seed collection rod, and a driving component. The handle has multiple independent sliding grooves, each sliding groove penetrating the end face of one end of the handle. The number of seed collection rods is equal to the number of sliding grooves, and each seed collection rod corresponds one-to-one with a sliding groove. The seed collection rod is slidably connected to its corresponding sliding groove. The driving component is disposed between the seed collection rod and the handle to drive the seed collection rod to move along the sliding groove. The outer wall of the seed collection rod has ten seed collection slots evenly spaced along the length of the rod. The handle has a controller and a... The system includes a signal-connected on / off switch, an increase button, a decrease button, a seed retrieval button, and a display screen. The controller, along with the increase button, decrease button, and display screen, forms a seed retrieval quantity setting circuit. When the increase button and decrease button are pressed, the controller controls the value of the numbers on the display screen. The controller, along with the drive unit and the seed retrieval button, forms a seed retrieval circuit. When the seed retrieval button is pressed, the controller sends a signal to the drive unit to activate it, causing the seed retrieval rod to extend or retract from the slide. The controller and the on / off switch form a switching circuit. When the on / off switch is pressed, the controller connects the seed retrieval quantity setting circuit and the seed retrieval circuit.

[0005] Furthermore, the grooves are three arranged in a triangular pattern.

[0006] Furthermore, there are three driving components, each corresponding to one of the three seed-taking rods, and the driving components drive the corresponding seed-taking rods to move.

[0007] Furthermore, the driving component is an electric telescopic rod, the fixed part of the driving component is fixed in the slide groove, and the movable part of the driving component is fixedly connected to the end of the seed-taking rod.

[0008] Furthermore, the driving component includes a motor and a gear, the motor is fixed inside the handle, the gear is fixed at the output end of the motor, and the outer wall of the seed-taking rod has external teeth that mesh with the gear.

[0009] Furthermore, it also includes an adjustment component, which includes an air pump, an air tube, and an air bladder. The air pump is fixed inside the handle, and the air bladder is located inside the seed collection slot with its outer wall in close contact with the inner wall of the seed collection slot. Both the seed collection slot and the air bladder are circular hollow structures with one open end. One end of the air tube is connected to the air pump, and the other end of the air tube is connected to the air bladder. When the air pump is working, it inflates the air bladder through the air tube or extracts air from the air bladder.

[0010] Furthermore, the handle has a main airway and bronchial airways. One end of the main airway is connected to the other end of the trachea, the other end of the main airway is connected to one end of each bronchial airway, and the other end of each bronchial airway is connected to the airbag.

[0011] Furthermore, the trachea is a flexible spiral tube.

[0012] The present invention also provides a seed collection method for a small quantitative seed collection device, comprising the following steps:

[0013] S1. Press the power button and adjust the seed quantity using the increase and decrease keys;

[0014] S2. Open the cap of the seed storage bottle, and hold the handle to bring one end of the handle into contact with the mouth of the seed storage bottle;

[0015] S3. Press the seed taking button, and drive the seed taking rod to extend out of the handle and into the seed storage bottle through the driving component, and move the handle up, down, left and right.

[0016] S4. Press the seed extraction button again to drive the seed extraction rod to retract the handle through the drive component. During this process, the seeds located on the seed extraction rod but not in the seed extraction slot are scraped off.

[0017] S5. Take out the seed bag, insert one end of the handle into the seed bag, press the seed taking button again, and drive the seed taking rod to extend out of the handle through the driving component to pour the seeds into the seed bag, thus completing the quantitative seed taking.

[0018] Furthermore, when the number of seeds taken is less than or equal to 10, only one of the seed-taking rods extends out of the handle; when the number of seeds taken is greater than 10 and less than or equal to 20, two of the seed-taking rods extend out of the handle, and when the number of seeds taken is even, the number of seed-taking slots on the two seed-taking rods extending out of the handle is equal; when the number of seeds taken is odd, the difference in the number of seed-taking slots on the two seed-taking rods extending out of the handle is 1; when the number of seeds taken is greater than 20 and less than or equal to 30, all three of the seed-taking rods extend out of the handle, and when the number of seeds taken is even, the number of seed-taking slots on the three seed-taking rods extending out of the handle is equal; when the number of seeds taken is odd, two of the seed-taking rods extend out of the handle, and the difference in the number of seed-taking slots on the third seed-taking rod extending out of the handle compared to the number of seed-taking slots on the other seed-taking rods extending out of the handle is 1.

[0019] The beneficial effects of this invention are as follows: Before seed collection, the seed collection quantity can be set on the handle; during seed collection, simply hold the handle and bring one end of the handle to the mouth of the seed storage bottle, then press the seed collection button, and the seed collection rod will extend into the seed storage bottle, and the seeds in the seed storage bottle will fall into the seed collection slot, with one seed in each seed collection slot; after pressing the seed collection button again, the seed collection rod retracts into the handle, and excess seeds on the seed collection rod are scraped off, thus achieving quantitative seed collection; since the manual counting work is eliminated, and quantitative seed collection can be achieved during the process of the seed collection rod entering and exiting the seed storage bottle, the opening time of the seed storage bottle is short, and the impact on the storage of seeds in the seed storage bottle is small. Attached Figure Description

[0020] Figure 1 This is a three-dimensional diagram of the present invention;

[0021] Figure 2 This is the front view of the present invention;

[0022] Figure 3 This is a top view of the present invention;

[0023] Figure 4 for Figure 3 AA section view in the middle;

[0024] Figure 5 This is a top view assembly diagram of the seed-collecting rod and driving component according to Embodiment 1 of the present invention;

[0025] Figure 6 This is a top view of the present invention with all three seed-collecting rods extended from the handle;

[0026] Figure 7 This is a cross-sectional assembly view of the seed-taking rod and handle according to Embodiment 2 of the present invention;

[0027] Figure 8 This is a front view of the seed-collecting rod according to Embodiment 2 of the present invention;

[0028] Figure 9This is a top view assembly diagram of the seed-collecting rod and adjusting assembly according to Embodiment 3 of the present invention;

[0029] Figure 10 for Figure 9 BB section view in the middle;

[0030] Figure 11 for Figure 10 A schematic diagram of the inflated airbag;

[0031] Figure 12 This is a cross-sectional assembly view of the seed-taking rod and adjusting assembly according to Embodiment 4 of the present invention;

[0032] Figure 13 for Figure 12 Enlarged view of section C in the image;

[0033] In the diagram: 1. Handle, 11. Power switch, 12. Increase button, 13. Decrease button, 14. Seed collection button, 15. Display screen, 16. Slide groove, 17. Gear cavity, 18. Mounting plane, 2. Seed collection rod, 21. Seed collection groove, 22. External gear, 23. Main air passage, 24. Branch air passage, 3. Drive component, 31. Moving part, 32. Motor, 33. Gear, 4. Air pump, 5. Airbag, 6. Air tube. Detailed Implementation

[0034] like Figures 1 to 13 As shown, the present invention includes a handle 1, a seed-taking rod 2, a driving component 3, and an adjustment assembly. The present invention will be described in detail below with reference to the accompanying drawings.

[0035] like Figures 1 to 13 As shown, the small quantitative seed collection device of the present invention includes a handle 1, a seed collection rod 2, and a driving component 3. The handle 1 has a cylindrical structure, as shown in the figure. Figure 1 , Figure 4 As shown, the handle 1 has multiple independent sliding grooves 16. The cross-section of each sliding groove 16 is rectangular, and the sliding groove 16 passes through the end face of one end of the handle 1, as shown. Figure 1 As shown, the number of seed-taking rods 2 is equal to the number of slide grooves 16, and each seed-taking rod 2 corresponds to one slide groove 16. The seed-taking rod 2 is slidably connected to its corresponding slide groove 16. A driving component 3 is disposed between the seed-taking rod 2 and the handle 1, used to drive the seed-taking rod 2 to move along the slide groove 16, causing one end of the seed-taking rod 2 to extend out of or retract from the handle 1. Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, the outer wall of the seed-collecting rod 2 has ten seed-collecting slots 21 evenly spaced along the length of the rod. The cross-sectional shape of the seed-collecting slots 21 is circular, and the longitudinal cross-sectional shape of the seed-collecting slots 21 is U-shaped. After the seed-collecting rod 2 extends into the seed storage bottle, the seeds fall into the seed-collecting slots 21 under its own weight, thus achieving seed collection. The handle 1 has a controller, as well as an on / off switch 11, an increase button 12, a decrease button 13, a seed collection button 14, and a display screen 15, all of which are connected to the controller via signals. For ease of assembly, a mounting surface 18 is provided on the outer wall of the handle 1, and the on / off switch 11, the increase button 12, the decrease button 13, the seed collection button 14, and the display screen 15 are all located on the mounting surface 18. The controller, together with the increase button 12, the decrease button 13, and the display screen 15, constitutes a seed collection quantity setting circuit. When the increase button 12 and the decrease button 13 are pressed, the controller controls the value of the number on the display screen 15, thereby setting the seed collection quantity. The controller, drive unit 3, and seed-taking button 14 constitute a seed-taking circuit. When the seed-taking button 14 is pressed, the controller sends a signal to the drive unit 3 to activate it. The drive unit 3 then drives the seed-taking rod 2 to extend or retract from the slide groove 16. The controller and the power switch 11 constitute a switching circuit. When the power switch 11 is pressed, the controller connects the seed quantity setting circuit and the seed-taking circuit. At this time, the increase button 12 and decrease button 13 can be pressed to set the seed quantity, which is then highlighted on the display screen 15 in Arabic numeral form. The power switch 11, increase button 12, decrease button 13, seed-taking button 14 (equivalent to a start button), and display screen 15 are widely used in existing digital or electromechanical products and are therefore considered existing technology, which will not be described in detail here.

[0036] After pressing the seed dispensing button 14, to ensure that the seed dispensing rods 2 do not interfere with each other when they are inserted into the seed storage bottle, the seeds should fall into the seed dispensing slot 21 as follows: Figure 1 As shown, the three chutes 16 are arranged in a triangular shape, and correspondingly, the three seed-collecting rods 2 are also arranged in a triangular shape. The vertical and horizontal directions of the three seed-collecting rods 2 do not affect each other's entry of seeds into the seed-collecting trough 21.

[0037] like Figure 4 , Figure 5 As shown, there are three driving components 3, each corresponding to one of the three seed-collecting rods 2. Each driving component 3 drives the corresponding seed-collecting rod 2 to move. In one embodiment of the driving component 3, the driving component 3 is an electric telescopic rod. The fixed part of the driving component 3 is fixed within the slide groove 16, and the movable part 31 of the driving component 3 is fixedly connected to the end of the other end of the seed-collecting rod 2, extending into the other end of the seed-collecting rod 2. After the driving component 3 is activated, the movable part 31 of the driving component 3 drives the seed-collecting rod 2 to move outward from the slide groove 16, as shown... Figure 6 As shown, this causes the seed-taking groove 21 on the seed-taking rod 2 to extend out of the handle 1, that is, to extend out of the slide groove 16.

[0038] like Figure 7 , Figure 8As shown, this is a second embodiment of the driving component 3 of the present invention. The structure of the driving component 3 in the second embodiment differs from that in the first embodiment. The driving component 3 in the second embodiment includes a motor 32 and a gear 33. The motor 32 is fixed in the gear cavity 17 on the handle 1, and the gear 33 is fixed at the output end of the motor 32, as shown. Figure 8 As shown, the outer wall of the seed-collecting rod 2 has external teeth 22 that mesh with the gear 33. At this time, the seed-collecting groove 21 is located on the upper side of one end of the seed-collecting rod 2, and the external teeth 22 are located on the lower side of the other end of the seed-collecting rod 2. After starting the motor 32, the gear 33 is driven to rotate, which in turn drives the seed-collecting rod 2 to move along the slide groove 16. In the second embodiment, three driving components 3 are also provided. The three driving components 3 correspond one-to-one with the three seed-collecting rods 2. The three driving components 3 can drive the three seed-collecting rods 2 to extend the handle 1 by the same length, that is, the number of seed-collecting grooves 21 extending from the handle 1 is the same, or the three seed-collecting rods 2 can be driven to extend the handle 1 by different numbers of seed-collecting grooves 21.

[0039] As a third embodiment of the present invention, based on the first embodiment, it further includes an adjustment component. According to the seed size, the size of the seed-collecting groove 21 is adjusted by the adjustment component, thereby enabling single-seed collection from seeds of different sizes through the seed-collecting groove 21. Figure 9 , Figure 10 As shown, the adjustment assembly in Embodiment 3 includes an air pump 4, an air tube 6, and an air bag 5. The air pump 4 is fixed inside the handle 1. The air bag 5 is located inside the seed collection slot 21, and the outer wall of the air bag 5 is in close contact with the inner wall of the seed collection slot 21. Both the seed collection slot 21 and the air bag 5 are circular hollow structures with one open end. The size of the inner cavity of the air bag 5 is the actual size of the seed collection slot 21. One end of the air tube 6 is connected to the air pump 4, and the other end of the air tube 6 is connected to the air bag 5. When the air pump 4 is working, it inflates the air bag 5 or extracts air from the air bag 5 through the air tube 6. Specifically, the handle 1 has a main airway 23 and branch airways 24. One end of the main airway 23 is connected to the other end of the air tube 6, and the other end of the main airway 23 is connected to one end of each branch airway 24. The other end of each branch airway 24 is connected to the air bag 5. After the air pump 4 is started, air enters the air bag 5 through the air tube 6, the main airway 23, and the branch airways 24. Figure 11 As shown, this inflates the air bladder 5, thereby reducing the actual volume of the seed-collecting slot 21 to accommodate smaller seeds, ensuring that only one seed enters the air bladder 5. The air tube 6 is a flexible spiral tube to allow for extension when the seed-collecting rod 2 extends from the handle 1, maintaining airflow. When the seed-collecting rod 2 retracts into the handle 1, the air tube 6 returns to its original shape under its own elastic force.

[0040] As a fourth embodiment of the present invention, based on the second embodiment, it further includes an adjustment component. According to the seed size, the size of the seed-collecting groove 21 is adjusted by the adjustment component, thereby enabling single-seed collection from seeds of different sizes through the seed-collecting groove 21. Figure 12 , Figure 13As shown, the adjustment assembly in Embodiment 4 includes an air pump 4, an air tube 6, and an air bag 5. The air pump 4 is fixed inside the handle 1. The air bag 5 is located inside the seed-taking groove 21, and the outer wall of the air bag 5 is in close contact with the inner wall of the seed-taking groove 21. Both the seed-taking groove 21 and the air bag 5 are circular hollow structures with one open end. The size of the inner cavity of the air bag 5 is the actual size of the seed-taking groove 21. One end of the air tube 6 is connected to the air pump 4, and the other end of the air tube 6 is connected to the air bag 5. Most of the air tube 6 is located in the inner cavity of the other end of the seed-taking rod 2. When the air pump 4 is working, it inflates the air bag 5 through the air tube 6 or extracts air from the air bag 5. Specifically, the handle 1 has a main airway 23 and branch airways 24. One end of the main airway 23 is connected to the other end of the air tube 6, and the other end of the main airway 23 is connected to one end of each branch airway 24, such as... Figure 13 As shown, the other end of the bronchus 24 is connected to the air bladder 5, and the bronchus 24 are arranged in parallel. After the air pump 4 is started, air enters the air bladder 5 through the air tube 6, the main air tube 23, and the bronchus 24, causing the air bladder 5 to inflate. This reduces the actual volume of the seed-taking trough 21, making it suitable for taking smaller seeds, so that only one seed enters the air bladder 5. The air tube 6 is a flexible spiral tube to meet the need for the air tube 6 to extend when the seed-taking rod 2 extends out of the handle 1, and to maintain airflow. When the seed-taking rod 2 retracts into the handle 1, the air tube 6 returns to its original shape under its own elastic force.

[0041] The following describes a seed collection method for a small-scale quantitative seed collection device according to the present invention, including the following steps:

[0042] S1. Press the power button 11, and adjust the seed quantity using the increase button 12 and decrease button 13;

[0043] S2. Open the cap of the seed storage bottle, and hold the handle 1 to contact one end of the handle 1 with the mouth of the seed storage bottle.

[0044] S3. Press the seed taking button 14, and drive the seed taking rod 2 to extend out of the handle 1 and into the seed storage bottle through the drive component 3. Move the handle 1 up, down, left and right to ensure that the seeds fall into the seed taking slot 21.

[0045] S4. Press the seed extraction button 14 again to drive the seed extraction rod 2 to retract the handle 1 via the drive component 3. During this process, the seeds located on the seed extraction rod 2 but not in the seed extraction slot 21 are scraped off.

[0046] S5. Take out the seed bag, insert one end of the handle 1 into the seed bag, press the seed taking button 14 again, and drive the seed taking rod 2 to extend out of the handle 1 through the drive component 3 to pour the seeds into the seed bag, thus completing the quantitative seed taking.

[0047] In breeding work, the number of seeds taken is usually between 10 and 30. Therefore, this invention sets up three seed-taking rods 2, with ten seed-taking slots 21 on each rod. When the number of seeds taken is less than or equal to 10, the controller controls one of the driving components 3 to move, so that only one seed-taking rod 2 extends out of the handle 1. On the one hand, one seed-taking rod 2 is sufficient to measure the required number of seeds; on the other hand, when the number of seeds taken is close to 10, the seed-taking rod 2 extends into the seed storage bottle to a greater depth, avoiding missed seed taking when there are not enough seeds in the seed storage bottle. When the number of seeds taken is greater than 10 and less than or equal to 20, the controller controls the two drive components 3 to move, so that the two seed-taking rods 2 extend out of the handle 1 to take seeds. When the number of seeds taken is even, the lengths of the two seed-taking rods 2 extending out of the handle 1 are equal, that is, the number of seed-taking slots 21 of the two seed-taking rods 2 extending out of the handle 1 are equal. For example, if the number of seeds taken is 14, the number of seed-taking slots 21 of the two seed-taking rods 2 extending out of the handle 1 is 7. When the number of seeds taken is odd, the difference in the number of seed-taking slots 21 of the two seed-taking rods 2 extending out of the handle 1 is 1. For example, if the number of seeds taken is 17, the number of seed-taking slots 21 of the two seed-taking rods 2 extending out of the handle 1 are 9 and 8 respectively. When the number of seeds taken is greater than 20 and less than or equal to 30, the controller activates all three drive components 3, causing all three seed-taking rods 2 to extend from the handle 1. When the number of seeds taken is even, the number of seed-taking slots 21 extended from the handle 1 by the three seed-taking rods 2 is equal. For example, if the number of seeds taken is 24, the number of seed-taking slots 21 extended from the handle 1 by the three seed-taking rods 2 is 8. When the number of seeds taken is odd, two seed-taking rods 2 extend from the handle 1 with the same number of seed-taking slots 21. The difference between the number of seed-taking slots 21 extended from the handle 1 by the third seed-taking rod 2 and the other seed-taking rods 2 is 1. For example, if the number of seeds taken is 29, the number of seed-taking slots 21 extended from the handle 1 by the three seed-taking rods 2 is 10, 10, and 9 respectively.

[0048] Before seed collection, the quantity of seeds can be set on the handle 1. During collection, simply hold the handle 1 and bring one end to the mouth of the seed storage bottle. Then press the seed collection button 14, and the seed collection rod 2 will extend into the seed storage bottle, causing the seeds to fall into the seed collection slots 21, with one seed in each slot. Pressing the seed collection button 14 again retracts the seed collection rod 2 from the handle 1, scraping away any excess seeds. This achieves quantitative seed collection. Since manual counting is eliminated, and quantitative seed collection is achieved simply by the seed collection rod 2 moving in and out of the seed storage bottle, the short opening time of the bottle minimizes the impact on seed storage. However, when collecting seeds of different sizes, if a larger seed collection slot 21 is used to collect smaller seeds, multiple seeds may enter the slot 21 during collection. This disrupts the one-to-one relationship between the slot and the seed, leading to an excessively large quantity of seeds collected, making precise and quantitative seed collection impossible. The adjustable components allow for adjustment of the actual volume of the seed-taking slot 21. By adjusting the volume of the seed-taking slot 21 according to the seed size, only one seed can fall into the slot 21, ensuring that one seed corresponds to one seed per slot. Furthermore, this invention enables rapid seed retrieval from the seed storage bottle, with a short opening time, which is beneficial for seed storage.

Claims

1. A small-scale quantitative seed collection device, characterized in that, The device includes a handle, a seed-collecting rod, and a drive unit. The handle has multiple independent sliding grooves that extend through one end face of the handle. The number of seed-collecting rods is equal to the number of sliding grooves, and each seed-collecting rod corresponds to a sliding groove. The seed-collecting rod is slidably connected to its corresponding sliding groove. The drive unit is positioned between the seed-collecting rod and the handle to drive the seed-collecting rod to move along the sliding groove. The outer wall of the seed-collecting rod has ten seed-collecting slots evenly spaced along its length. The handle has a controller and a power switch, an increment button, a decrement button, a seed-collecting button, and a display screen, all connected to the controller via signals. The controller, along with the increment button, decrement button, and display screen, forms a seed-collecting quantity setting circuit. Pressing the increment button and decrement button controls the number displayed on the display screen. The controller, drive unit, and seed-collecting button form a seed-collecting circuit. Pressing the seed-collecting button sends a signal to the drive unit to activate it, causing the seed-collecting rod to extend or retract from the sliding groove. The controller and power switch form a switching circuit. Pressing the power switch activates both the seed-collecting quantity setting circuit and the seed-collecting circuit.

2. The small-scale quantitative seed sampling device according to claim 1, characterized in that, The slides are three in a triangular arrangement.

3. The small-scale quantitative seed sampling device according to claim 2, characterized in that, The driving element has three components, each corresponding to one of the three seed-taking rods, and the driving element drives the corresponding seed-taking rod to move.

4. The small-scale quantitative seed sampling device according to claim 3, characterized in that, The driving component is an electric telescopic rod. The fixed part of the driving component is fixed in the sliding groove, and the movable part of the driving component is fixedly connected to the end of the seed-taking rod.

5. The small-scale quantitative seed sampling device according to claim 3, characterized in that, The driving component includes a motor and a gear. The motor is fixed inside the handle, and the gear is fixed at the output end of the motor. The outer wall of the seed-taking rod has external teeth that mesh with the gear.

6. The small-scale quantitative seed collection device according to claim 4 or 5, characterized in that, It also includes an adjustment component, which includes an air pump, an air tube, and an air bladder. The air pump is fixed inside the handle, and the air bladder is located inside the seed collection slot with its outer wall in close contact with the inner wall of the seed collection slot. Both the seed collection slot and the air bladder are circular hollow structures with one open end. One end of the air tube is connected to the air pump, and the other end of the air tube is connected to the air bladder. When the air pump is working, it inflates the air bladder through the air tube or extracts air from the air bladder.

7. The small-scale quantitative seed sampling device according to claim 6, characterized in that, The handle has a main airway and bronchial airways. One end of the main airway is connected to the other end of the trachea, and the other end of the main airway is connected to one end of each bronchial airway. The other end of each bronchial airway is connected to the airbag.

8. The small-scale quantitative seed sampling device according to claim 6, characterized in that, The trachea is a flexible spiral tube.

9. The seed extraction method of the small quantitative seed extraction device according to claim 1, characterized in that, Includes the following steps: S1. Press the power button and adjust the seed quantity using the increase and decrease keys; S2. Open the cap of the seed storage bottle, and hold the handle to bring one end of the handle into contact with the mouth of the seed storage bottle; S3. Press the seed retrieval button, and drive the seed retrieval rod to extend out of the handle and into the seed storage bottle through the drive component, and move the handle up, down, left and right. S4. Press the seed extraction button again to drive the seed extraction rod to retract the handle through the drive component. During this process, the seeds located on the seed extraction rod but not in the seed extraction slot are scraped off. S5. Take out the seed bag, insert one end of the handle into the seed bag, press the seed taking button again, and drive the seed taking rod to extend out of the handle through the driving component to pour the seeds into the seed bag, thus completing the quantitative seed taking.

10. The seed extraction method of the small quantitative seed extraction device according to claim 9, characterized in that, When the number of seeds taken is less than or equal to 10, only one seed-taking rod extends from the handle; when the number of seeds taken is greater than 10 and less than or equal to 20, two seed-taking rods extend from the handle, and when the number of seeds taken is even, the number of seed-taking slots on the two seed-taking rods extending from the handle is equal; when the number of seeds taken is odd, the difference in the number of seed-taking slots on the two seed-taking rods extending from the handle is 1; when the number of seeds taken is greater than 20 and less than or equal to 30, all three seed-taking rods extend from the handle, and when the number of seeds taken is even, the number of seed-taking slots on the three seed-taking rods extending from the handle is equal; when the number of seeds taken is odd, two seed-taking rods extend from the handle, and the difference in the number of seed-taking slots on the third seed-taking rod extending from the handle compared to the number of seed-taking slots on the other seed-taking rods extending from the handle is 1.

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