Small granular heteromorphic seed precision seeder

By designing a precision seeder for small-particle irregular seeds and adopting a tracked walking mechanism and a cam control mechanism, the automated precision seeding of irregular seeds has been achieved, solving the problems of seed damage and low efficiency in existing technologies, improving work efficiency and reducing labor intensity.

CN117378324BActive Publication Date: 2026-01-23JILIN ACAD OF AGRI MACHINERY
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Patent Information

Application Number
CN202311611794.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-29
Publication Date
2026-01-23
Estimated Expiration
2043-11-29

AI Technical Summary

Technical Problem

The existing mechanized sowing technology for Chinese medicinal herbs and fruit and vegetable seeds is outdated, resulting in problems such as seed damage, low efficiency, and high labor intensity.

Method used

A precision seeder for small-particle irregular seeds was designed. It adopts a tracked walking mechanism, a spoon-type seed picking structure, and a hole-planting and seed-discharging structure. It achieves automated synchronous drive through a cam control mechanism and is suitable for irregular seeds.

Benefits of technology

It enables automated precision sowing of irregularly shaped seeds, reducing seed damage, improving operational efficiency and reducing labor intensity. The sowing size is precise and uniform, facilitating subsequent management.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a small-particle special-shaped seed precision seeder, which comprises a rack, a walking mechanism, a power and transmission mechanism, a seed box and a spoon type seed taking structure matched with the seed box; the position close to the spoon type seed taking structure of the rack is integrated with a hole making and seed arranging structure; the seed box stores seeds; the seed taking part of the spoon type seed taking structure can extend into the seed box and convey the seeds in the seed box into the hole making and seed arranging structure; the seeds received by the hole making and seed arranging structure are discharged through the seeding end at the lower end. The seeder does not damage the seeds, has the advantages of simple structure, high automation degree, high efficiency, consistent working plant distance, row distance and seeding depth, and is convenient for field management and harvesting in the later period. The overall structure has high reliability and is convenient for later maintenance and maintenance.
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Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a precision seeder for small-particle irregular seeds. Background Technology

[0002] Currently, the cultivation of Chinese medicinal herbs, fruits, and vegetables has reached a large scale. However, due to the special shape of these crops' seeds, mechanized sowing technology is very backward, and manual or semi-mechanized operations are the main methods. Application number 202020681296.9 discloses a semi-automatic spoon-type ginseng planter, which requires two people to operate simultaneously. They stand on both sides of the seedbed, lift the machine, move it along the seedbed, and operate the handles. During the movement, they complete actions such as punching holes and sowing. The operation is inefficient and labor-intensive.

[0003] There are two common sowing techniques: pneumatic and mechanical. Pneumatic techniques include needle suction and roller types, which require fans, consume a lot of power, and have complex structures. Mechanical techniques include hole type, disc type, and finger clamp type, which have strict requirements on seed size and shape, poor adaptability to seeds, and are prone to damaging seeds.

[0004] In summary, there is an urgent need in this field for a new technical solution to address the aforementioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide a precision seeder for small, irregularly shaped seeds, which overcomes the problems of easy seed damage, low seeding efficiency, and high labor intensity in the prior art. The overall structure is novel and simple, with a low seed damage rate, improved work efficiency, reduced labor intensity, and precise and uniform seeding size.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The present invention provides a precision seeder for small-particle irregularly shaped seeds, comprising:

[0008] frame;

[0009] The traveling mechanism is integrated at both ends of the frame, and the frame is equipped with a power and transmission mechanism. The traveling mechanism is driven by the power and transmission mechanism.

[0010] The seed box is integrated at the front end of the frame, and the scoop-type seed-taking structure cooperates with the seed box;

[0011] The frame is integrated with a hole-punching and seed-discharging structure near the spoon-type seed-collecting structure. The seed box contains seeds. The seed-collecting component of the spoon-type seed-collecting structure can extend into the seed box and transport the seeds in the seed box to the hole-punching and seed-discharging structure.

[0012] The seeds received by the hole-drilling and seed-rearing structure are discharged through the seeding end at the lower end.

[0013] Furthermore, the rack includes:

[0014] The side beams located on both sides; and

[0015] An integrated frame connecting the two side beams;

[0016] The walking mechanism is connected between the two side beams, and the walking mechanism includes:

[0017] The pressing wheels on both sides, and multiple pressing rods connecting the pressing wheels on both sides, and the multiple pressing rods are evenly distributed along the circumference of the pressing wheels;

[0018] A toothed pulley is provided on the walking mechanism near the side of the power and transmission mechanism. The power and transmission mechanism drives the toothed pulley to rotate, thereby driving the walking mechanism to rotate.

[0019] Furthermore, the power and transmission mechanism includes:

[0020] A gasoline engine integrated into the integrated frame of the aforementioned frame; and

[0021] A transmission that is integrated on both sides of the integrated frame and drives the gasoline engine via a drive shaft;

[0022] The two transmissions are a transmission for driving the walking mechanism and a transmission for driving the seeding mechanism;

[0023] The transmission for driving the walking mechanism drives the toothed belt pulley of the walking mechanism to rotate via a transmission chain.

[0024] Furthermore, the transmission for driving the seeding mechanism drives the spoon-type seed-taking structure and the hole-piercing and seed-discharging structure to work synchronously via a cam control mechanism.

[0025] Furthermore, the cam control mechanism includes:

[0026] Camshaft; and

[0027] A first drive cam connected to both axial ends of the camshaft; and

[0028] A second drive cam is connected to the middle position of the camshaft;

[0029] The first drive cam on one side is provided with a toothed pulley for a cam control mechanism. The gearbox for driving the seeding mechanism is connected to the toothed pulley for the cam control mechanism via a transmission chain to drive the camshaft to rotate.

[0030] The camshaft drives the first drive cam and the second drive cam to rotate;

[0031] The first driving cam is connected to the spoon-type seed-retrieving structure to drive the spoon-type seed-retrieving structure to move and retrieve the seeds from the seed box;

[0032] The second driving cam drives the hole-punching and seed-rearing structure to move.

[0033] Furthermore, the seed box includes:

[0034] Seed box shell; and

[0035] Multiple partitions are spaced apart inside the seed box shell along its length, dividing the interior space of the seed box shell into multiple seed storage chambers.

[0036] The spoon-type seed-collecting structure includes:

[0037] Spoon-type seed picker; and

[0038] A plurality of seed-taking components are spaced apart along the length of the spoon-shaped seed-taking rack, the number of seed-taking components matching the number of seed storage cavities, and each seed-taking component can extend into a corresponding seed storage cavity;

[0039] The first drive cam is connected to the middle frame of the spoon-type seed-taking frame via a first drive rod, and the seed-taking part is integrated into the middle frame on the side near the seed box. The first drive rod is connected to the protrusion of the first drive cam so that the first drive rod can swing through the rotation of the first drive cam.

[0040] Furthermore, the upper frame of the spoon-type seed-taking frame is connected to the integrated frame via a connecting frame, and the upper frame and the middle frame are connected by multiple telescopic cylinder rods.

[0041] Furthermore, the hole-punching and seed-rearing structure includes:

[0042] A seed receiving rack, wherein the surface of the seed receiving rack has receiving channels that match the number and position of the seed storage chambers;

[0043] A seed sowing tube connected to the lower part of the seed receiving rack and matched to each of the receiving channels; and

[0044] A cone-shaped nozzle formed under the seed sowing tube;

[0045] The seed receiving frame is equipped with a matching frame, and the protrusion of the second driving cam can press the matching frame to drive the hole-making and seed-discharging structure to move in the vertical direction and open seeding holes in the soil through the pointed hole opener.

[0046] The middle frame is connected to a second drive rod at one end, and an operating rod is connected to the lower end of the second drive rod. The operating rod is connected to the switch of the pointed nozzle through a spring to drive the switch of the pointed nozzle to open or close.

[0047] When the switch of the pointed nozzle is turned on, the seeds in the seed sowing tube are discharged into the corresponding sowing pit.

[0048] The precision seeder for small-particle irregular seeds provided by the present invention, as described above, has the following beneficial effects:

[0049] The precision seeder for small-particle irregular-shaped seeds of the present invention can move autonomously along the seedbed through a tracked walking mechanism to achieve automated operation; the scoop-type seed picking structure and the hole-planting and seed-discharging structure are all driven synchronously by a cam control mechanism, which has a high degree of automation and high control precision. It is not only suitable for ginseng seeds, but also for planting small-particle seeds of other Chinese medicinal materials, fruits and vegetables.

[0050] The seeder of this invention does not damage seeds, has a simple structure, and boasts advantages such as high automation, high efficiency, and consistent plant spacing, row spacing, and sowing depth, facilitating subsequent field management and harvesting. The overall structure is highly reliable, making it easy to maintain and service later. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0052] Figure 1 This is a schematic diagram of the structure of the precision seeder for small-particle irregularly shaped seeds disclosed in an embodiment of the present invention. Figure 1 ;

[0053] Figure 2 This is a schematic diagram of the structure of the precision seeder for small-particle irregularly shaped seeds disclosed in an embodiment of the present invention. Figure 2 ;

[0054] Figure 3 This is a schematic diagram of the frame structure of the precision seeder for small-particle irregular-shaped seeds disclosed in an embodiment of the present invention;

[0055] Figure 4This is a schematic diagram of the walking mechanism of the precision seeder for small-particle irregular-shaped seeds disclosed in an embodiment of the present invention;

[0056] Figure 5 This is a schematic diagram of the cam control mechanism of the precision seeder for small-particle irregular-shaped seeds disclosed in an embodiment of the present invention;

[0057] Figure 6 This is a front view of the precision seeder for small-particle irregular-shaped seeds disclosed in an embodiment of the present invention;

[0058] Figure 7 This is a schematic diagram of the spoon-type seed-collecting structure of the precision seeder for small-particle irregularly shaped seeds disclosed in an embodiment of the present invention;

[0059] Figure 8 This is a schematic diagram of the hole-drilling and seed-rearing structure of the precision seeder for small-particle irregular-shaped seeds disclosed in an embodiment of the present invention.

[0060] Explanation of reference numerals in the attached figures:

[0061] 1. Frame; 2. Power and transmission mechanism; 3. Walking mechanism; 4. Cam control mechanism; 5. Spoon-type seed picking structure; 6. Seed hole planting and seed dispensing structure; 7. Seed box;

[0062] Side beams; 102, integrated frame;

[0063] 201. Gasoline engine; 202. Drive shaft; 203. Gearbox for driving the traveling mechanism; 204. Gearbox for driving the seeding mechanism;

[0064] 301. Pressing wheel; 302. Toothed pulley of traveling mechanism; 303. Pressing rod;

[0065] 401. Camshaft; 402. First drive cam; 403. Second drive cam; 404. Toothed pulley of cam control mechanism; 405. First drive rod; 406. Second drive rod;

[0066] 501. Seed collection section; 502. Intermediate frame; 503. Upper frame;

[0067] 601. Seed receiving rack; 602. Receiving channel; 603. Seed sowing tube; 604. Pointed nozzle hole opener; 605. Operating lever; 606. Spring; 607. Matching frame;

[0068] 701. Partition. Detailed Implementation

[0069] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0070] See Figures 1 to 8As shown;

[0071] This embodiment provides a precision seeder for small-particle, irregularly shaped seeds, which includes:

[0072] Rack 1;

[0073] The traveling mechanism 3 is integrated at both ends of the frame 1. The frame 1 is equipped with a power and transmission mechanism 2, and the traveling mechanism 3 is driven by the power and transmission mechanism 2.

[0074] The seed box 7 is integrated at the front end of the frame 1, and the scoop-type seed-taking structure 5 cooperates with the seed box 7;

[0075] The frame 1 has a hole-punching and seed-discharging structure 6 integrated near the spoon-type seed-collecting structure 5. Seeds are stored in the seed box 7. The seed-collecting part 501 of the spoon-type seed-collecting structure 5 can extend into the seed box 7 and transport the seeds in the seed box 7 to the hole-punching and seed-discharging structure 6.

[0076] The seeds received by the seed-drilling and seed-discharging structure 6 are discharged through the seed-discharging end at the lower end.

[0077] Specifically, this embodiment discloses a precision seeder suitable for sowing small-particle seeds, which includes a frame 1, a walking mechanism 3, a power and transmission mechanism 2, and a spoon-type seed-collecting structure 5 and a hole-pitting and seed-discharging structure 6 for sowing and digging holes. In this embodiment, a seed box 7 is provided at the front end of the device, and the spoon-type seed-collecting structure 5, which cooperates with it, has a seed-collecting part 501. Driven by the power and transmission mechanism 2, it can collect seeds from the seed box 7 and transport them to the hole-pitting and seed-discharging structure 6. Then, the hole-pitting and seed-discharging structure 6 of this embodiment can not only dig holes in the soil by driving, but also discharge the received seeds into the dug sowing holes.

[0078] Preferably, the rack 1 in this embodiment includes:

[0079] Side beams 101 located on both sides; and

[0080] An integrated frame 102 connecting the two side beams 101;

[0081] The traveling mechanism 3 is connected between the two side beams 101, and the traveling mechanism 3 includes:

[0082] The pressing wheels 301 on both sides, and multiple pressing rods 303 connecting the pressing wheels 301 on both sides, and the multiple pressing rods 303 are evenly distributed along the circumference of the pressing wheels 301.

[0083] A toothed pulley 302 is provided on the walking mechanism 3 near the power and transmission mechanism 2. The power and transmission mechanism 2 drives the toothed pulley 302 to rotate so as to drive the walking mechanism 3 to rotate.

[0084] This embodiment further defines the structure of the frame 1 and the walking mechanism 3. The frame 1 is a steel structure frame, and the walking mechanism 3 integrated on it is a tracked walking mechanism. It is designed with a pressing wheel 301 that can fill the dug seed pits and a pressing rod 303 that is adapted to a row of seed pits. After the device digs the pits and places the seeds, the pressing wheel 301 and the pressing rod 303 can fill and press the row of seed pits.

[0085] As the power source for the device in this embodiment, the power and transmission mechanism 2 in this embodiment includes:

[0086] The gasoline engine 201 is integrated into the integrated frame 102 of the frame 1; and

[0087] A transmission that is integrated on both sides of the integrated frame 102 and is connected to the gasoline engine 201 via the drive shaft 202;

[0088] The two transmissions are a transmission 203 for driving the walking mechanism and a transmission 204 for driving the seeding mechanism;

[0089] The transmission 203 for driving the walking mechanism drives the toothed pulley 302 of the walking mechanism to rotate via a transmission chain.

[0090] First, the power source of the power and transmission mechanism 2 in this embodiment is a gasoline engine 201, which is connected to the gearboxes on both sides through the drive shaft 202. The two gearboxes are used to drive the walking mechanism 3 and the seeding mechanism, respectively.

[0091] Preferably, in this embodiment, the transmission 204 for driving the seeding mechanism drives the spoon-type seed-taking structure 5 and the hole-punching and seed-discharging structure 6 to work synchronously via the cam control mechanism 4.

[0092] Preferably, the cam control mechanism 4 in this embodiment includes:

[0093] Camshaft 401; and

[0094] The first drive cam 402 is connected to both axial ends of the camshaft 401; and

[0095] A second drive cam 403 is connected to the middle position of the camshaft 401;

[0096] The first drive cam 402 on one side is provided with a toothed pulley 404 of the cam control mechanism. The transmission 204 for driving the seeding mechanism is connected to the toothed pulley 404 of the cam control mechanism via a transmission chain to drive the camshaft 401 to rotate.

[0097] Camshaft 401 drives the first drive cam 402 and the second drive cam 403 to rotate;

[0098] The first drive cam 402 is connected to the spoon-type seed-taking structure 5 to drive the spoon-type seed-taking structure 5 to move and take out the seeds in the seed box 7;

[0099] The second drive cam 403 drives the hole-punching and seed-rearing structure 6 to move.

[0100] This embodiment further defines the structure of the cam control mechanism 4 used to drive the spoon-type seed-taking structure 5 and the hole-punching and seed-discharging structure 6 to work synchronously; the cam control mechanism 4 of this embodiment is controlled by the power and transmission mechanism 2, and drives the spoon-type seed-taking structure 5 and the hole-punching and seed-discharging structure 6 to work synchronously through the corresponding drive cam.

[0101] Preferably, the seed box 7 in this embodiment includes:

[0102] Seed box shell; and

[0103] Multiple partitions 701 are spaced apart inside the seed box shell along the length of the seed box shell, and the internal space of the seed box shell is divided into multiple seed storage chambers by the partitions 701;

[0104] The spoon-type seed-collecting structure 5 includes:

[0105] Spoon-type seed picker; and

[0106] Multiple seed-taking parts 501 are spaced apart along the length of the spoon-type seed-taking rack. The number of seed-taking parts 501 matches the number of seed storage cavities, and each seed-taking part 501 can extend into a corresponding seed storage cavity.

[0107] The first drive cam 402 is connected to the middle frame 502 of the spoon-type seed-taking frame via the first drive rod 405, and the seed-taking part 501 is integrated into the middle frame 502 on the side near the seed box 7. The first drive rod 405 is connected to the protrusion of the first drive cam 402 so that the first drive rod 405 can swing through the rotation of the first drive cam 402.

[0108] This embodiment further defines the specific structure of the spoon-type seed-collecting structure 5 and its transmission relationship with the cam control mechanism 4. The spoon-type seed-collecting structure 5 has multiple seed-collecting parts 501 that match the multiple seed storage cavities of the seed box 7. The seed-collecting parts 501 are configured in the shape of a spoon. As the first drive cam 402 of the cam control mechanism 4 moves along its trajectory, it can drive the first drive rod 405 to swing, thereby driving the seed-collecting parts 501 to reciprocate along a set trajectory, and take out the seeds in the seed box 7 and place them into the seed-piercing and seed-discharging structure 6.

[0109] Preferably, in this embodiment, the upper frame 503 of the spoon-type seed-taking rack is connected to the integrated frame 102 via a connecting frame, and the upper frame 503 and the middle frame 502 are connected by multiple telescopic cylinder rods.

[0110] Finally, this embodiment further defines the structure of the hole-punching and seed-discharging structure 6 and its transmission principle with the cam control mechanism 4. The hole-punching and seed-discharging structure 6 in this embodiment includes:

[0111] Seed receiving rack 601, the surface of seed receiving rack 601 is provided with receiving channels 602 that match the number and position of seed storage chambers;

[0112] Seed sowing tubes 603 are connected to the lower part of the seed receiving rack 601 and matched with each receiving channel 602; and

[0113] A cone-shaped nozzle 604 is formed under the seed sowing tube 603;

[0114] The seed receiving frame 601 is equipped with a matching frame 607. The protrusion of the second drive cam 403 can press the matching frame 607 to drive the hole-making and seed-discharging structure 6 to move in the vertical direction and open the seed pit in the soil through the pointed hole opener 604.

[0115] The end of the intermediate frame 502 is connected to a second drive rod 406, and the lower end of the second drive rod 406 is connected to an operating rod 605. The operating rod 605 is connected to the switch of the pointed nozzle 604 through a spring 606 to drive the switch of the pointed nozzle 604 to open or close.

[0116] When the switch of the pointed nozzle 604 is turned on, the seeds in the seed sowing tube 603 are discharged into the corresponding sowing pit.

[0117] The precision seeder for small-particle irregular seeds provided by the present invention, as described above, has the following beneficial effects:

[0118] The precision seeder for small-particle irregular seeds of the present invention can move autonomously along the seedbed through the tracked walking mechanism 3 to achieve automated operation; the spoon-type seed picking structure 5 and the hole-punching and seed-discharging structure 6 are all driven synchronously by the cam control mechanism 4, which has a high degree of automation and high control precision. It is not only suitable for ginseng seeds, but also for planting small-particle seeds of other Chinese medicinal materials, fruits and vegetables.

[0119] The seeder of this invention does not damage seeds, has a simple structure, and boasts advantages such as high automation, high efficiency, and consistent plant spacing, row spacing, and sowing depth, facilitating subsequent field management and harvesting. The overall structure is highly reliable, making it easy to maintain and service later.

[0120] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A precision seeder for small-particle, irregularly shaped seeds, characterized in that, This precision seeder includes: Rack (1); The walking mechanism (3) is integrated at both ends of the frame (1). The frame (1) is equipped with a power and transmission mechanism (2). The walking mechanism (3) is driven by the power and transmission mechanism (2). The seed box (7) is integrated at the front end of the frame (1), and the scoop-type seed-taking structure (5) cooperates with the seed box (7); The frame (1) is integrated with a hole-punching and seed-discharging structure (6) near the spoon-type seed-collecting structure (5). The seed box (7) contains seeds. The seed-collecting part (501) of the spoon-type seed-collecting structure (5) can extend into the seed box (7) and transport the seeds in the seed box (7) to the hole-punching and seed-discharging structure (6). The seeds received by the hole-punching and seed-discharging structure (6) are discharged through the seed-discharging end at the lower end; The rack (1) includes: The side beams (101) are located on both sides; and An integrated frame (102) is connected between the two side beams (101); The walking mechanism (3) is connected between the two side beams (101), and the walking mechanism (3) includes: The pressing wheels (301) on both sides, and multiple pressing rods (303) connecting the pressing wheels (301) on both sides, and the multiple pressing rods (303) are evenly distributed along the circumference of the pressing wheels (301); A toothed pulley (302) is provided on the walking mechanism (3) near the side of the power and transmission mechanism (2). The power and transmission mechanism (2) drives the toothed pulley (302) to rotate so as to drive the walking mechanism (3) to rotate. The power and transmission mechanism (2) includes: A gasoline engine (201) integrated into the integrated frame of the frame (1); and A transmission that is integrated on both sides of the integrated frame (102) and drives the gasoline engine (201) via a drive shaft (202); The two transmissions are divided into a transmission for driving the walking mechanism (203) and a transmission for driving the seeding mechanism (204). The transmission (203) for driving the walking mechanism drives the toothed pulley (302) of the walking mechanism to rotate via a transmission chain; The sowing mechanism drive gearbox (204) drives the spoon-type seed-taking structure (5) and the hole-punching and seed-discharging structure (6) to work synchronously through the cam control mechanism (4); The cam control mechanism (4) includes: Camshaft (401); and A first drive cam (402) connected to both axial ends of the camshaft (401); and A second drive cam (403) is connected to the middle position of the camshaft (401). The first drive cam (402) on one side is provided with a toothed pulley (404) of the cam control mechanism. The transmission (204) for driving the seeding mechanism is connected to the toothed pulley (404) of the cam control mechanism via a transmission chain to drive the camshaft (401) to rotate. The camshaft (401) drives the first drive cam (402) and the second drive cam (403) to rotate; The first driving cam (402) is connected to the spoon-type seed-taking structure (5) to drive the spoon-type seed-taking structure (5) to move and take out the seeds in the seed box (7); The second drive cam (403) drives the hole-punching and seed-rearing structure (6) to move; The seed box (7) includes: Seed box shell; and Multiple partitions (701) are spaced apart inside the seed box shell along the length direction of the seed box shell, and the internal space of the seed box shell is divided into multiple seed storage cavities by the partitions (701); The spoon-type seed-taking structure (5) includes: Spoon-type seed picker; and A plurality of seed-taking parts (501) are spaced apart along the length of the spoon-shaped seed-taking rack. The number of seed-taking parts (501) matches the number of seed storage cavities, and each seed-taking part (501) can extend into a corresponding seed storage cavity. The first drive cam (402) is connected to the middle frame (502) of the spoon-type seed-taking rack via the first drive rod (405), and the seed-taking part (501) is integrated into the middle frame (502) on the side near the seed box (7). The first drive rod (405) is connected to the protrusion of the first drive cam (402) so that the first drive rod (405) can swing by the rotation of the first drive cam (402). The hole-punching and seed-laying structure (6) includes: Seed receiving rack (601), the surface of which is provided with receiving channels (602) that match the number and position of the seed storage cavities. A seed sowing tube (603) connected to the lower part of the seed receiving rack (601) and matched with each of the receiving channels (602); and A cone-shaped nozzle (604) is formed under the seed sowing tube (603). The seed receiving rack (601) is provided with a matching frame (607), and the protrusion of the second driving cam (403) can press the matching frame (607) to drive the hole-making and seed-laying structure (6) to move in the vertical direction and open a seeding pit in the soil through the pointed hole opener (604). The end of the intermediate frame (502) is connected to a second drive rod (406), the lower end of the second drive rod (406) is connected to an operating rod (605), and the operating rod (605) is connected to the switch of the pointed nozzle (604) through a spring (606) to drive the switch of the pointed nozzle (604) to open or close. When the switch of the pointed nozzle (604) is turned on, the seeds in the seed sowing tube (603) are discharged into the corresponding sowing pit.

2. The precision seeder for small-particle irregularly shaped seeds according to claim 1, characterized in that, The upper frame (503) of the spoon-type seed-taking rack is connected to the integrated frame (102) via a connecting frame, and the upper frame (503) and the middle frame (502) are connected by multiple telescopic cylinder rods.

Citation Information

Patent Citations

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