Rape planting and sowing device not prone to blockage

By designing a sowing device with a quantitative discharger and a stirrer, the problem of seed jamming in the rapeseed seeder is solved, and uniform and efficient seed sowing is achieved. It is suitable for rapeseed and other small-particle seeds.

CN120712943AInactive Publication Date: 2025-09-30衢州市柯城区农业机械化技术推广中心
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511165371.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-20
Publication Date
2025-09-30
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The seeds of existing rapeseed planters are easily stuck in the seed box, resulting in uneven seeding and blockage problems.

Method used

A sowing device including a quantitative discharger, an agitator and a linkage mechanism was designed. The quantitative discharge of seeds was achieved through the quantitative groove on the discharge shaft, and the agitator was used to move up and down in the storage box to prevent the seeds from getting stuck. The guide tube and the furrow opener were combined to achieve precise sowing.

Benefits of technology

It achieves uniform sowing of seeds, reduces the risk of blockage, and improves the accuracy and efficiency of sowing. It is suitable for sowing rapeseed and other small-grain seeds.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120712943A_ABST
    Figure CN120712943A_ABST
Patent Text Reader

Abstract

The invention belongs to the technical field of rape planting equipment, and particularly relates to a rape planting and sowing device not prone to blockage. The invention provides an oilseed rape planting sowing device not prone to blockage, and aims to solve the problem that in the prior art, seeds of a sowing machine for oilseed rape planting are prone to being clamped in a seed box. A rape planting and sowing device not prone to blockage comprises a rack, a storage box for storing seeds is arranged on the rack, a quantitative discharging device is arranged on the storage box, walking wheels are further arranged on the rack, and the quantitative discharging device achieves quantitative discharging of the seeds through a quantitative groove in a discharging shaft. By means of the design, it is ensured that the number of seeds is consistent every time the seeds are sown, and the problem of uneven sowing caused by too many or too few seeds is solved. When the discharging shaft rotates, the quantitative groove quantitatively discharges the seeds in the storage box, and the seeds enter the guide pipe under the action of gravity and are accurately sown into the soil through grooves formed by the furrow openers.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention belongs to the technical field of rapeseed planting equipment, and in particular relates to a rapeseed planting and sowing device that is not easily clogged. Background Art

[0002] Rapeseed particles are small, and manual sowing is difficult to control, which can easily lead to overly dense or sparse seeds, affecting the later growth and yield of rapeseed.

[0003] The conventional rapeseed planter includes a frame equipped with a sowing mechanism comprising a seed box, a delivery pipe, and a sowing head. The sowing head is connected to the interior of the seed box via the delivery pipe and is fixedly mounted on the lower surface of the frame. The seed box is located on the upper surface of the frame. A soil turning mechanism is located to the left of the sowing head. The mechanized sowing method allows for more uniform sowing of rapeseed seeds, avoiding overly sparse or overly dense growth in the later stages. However, the seeds in the seed box of this planter fall by gravity onto the delivery pipe and the sowing head. Since there is no device to control the amount of seeds discharged, the seeds flow downward continuously, making it difficult to sow the seeds in intervals, which inconveniences the sowing process. In addition, due to the small diameter of rapeseed seeds, a large amount of rapeseed seeds accumulate in the seed box and squeeze against each other under the action of gravity. This can cause the rapeseed seeds to become stuck in the seed box and prevent them from entering the delivery pipe in sequence, resulting in reduced sowing uniformity. Summary of the Invention

[0004] The present invention provides a rapeseed planting and sowing device that is not easily clogged, aiming to solve the problem in the prior art that seeds of a seeder used for rapeseed planting are easily stuck in a seed box.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A rapeseed planting and sowing device that is not easily clogged comprises a frame, a storage box for storing seeds is provided on the frame, a quantitative discharger is provided on the storage box, and a running wheel is further provided on the frame, the running wheel is rotatably connected to the frame, the quantitative discharger comprises a discharge shaft, the discharge shaft is rotatably connected to the storage box, the running wheel drives the discharge shaft to rotate through a transmission mechanism, the discharge shaft is provided with a quantitative groove, and the discharge shaft uses the quantitative groove to discharge the seeds in the storage box in a quantitative manner during the rotation process;

[0007] The frame is further provided with a sowing assembly, which includes a guide tube provided on the frame, a furrow opener provided at the lower end of the guide tube, and the seeds discharged by the discharge shaft enter the guide tube under the action of gravity, and the guide tube guides the seeds into the furrow formed by the furrow opener;

[0008] The storage box is also provided with a stirrer for stirring the seeds in the storage box so that the seeds in the storage box can smoothly enter the quantitative groove. The stirrer is slidably connected to the storage box in the vertical direction, and the discharge shaft drives the stirrer to move up and down in the storage box through a linkage mechanism.

[0009] A further improved solution: the storage box is provided with a storage chamber for storing seeds and a guide chamber for guiding the seeds in the storage chamber to the discharge shaft, the guide chamber is communicated with the metering chamber, the agitator extends into the guide chamber, and the agitator stirs the seeds in the guide chamber, and the width of the guide chamber is smaller than the width of the storage chamber.

[0010] Based on this technical solution, the agitator's stirring action ensures even distribution of seeds within the storage box and guide chamber, further improving sowing uniformity. The guide chamber design reduces seed accumulation during seed transfer, reducing the risk of seed jamming. The agitator's up-and-down movement effectively prevents seeds from clumping and jamming within the storage box.

[0011] A further improved solution: the agitator includes a slide slidably connected to the storage box, the slide is provided with an extension rod extending into the guide cavity, stirring columns are evenly provided on the extension rod, the stirring columns are arranged along the width direction of the guide cavity, and the cross-sectional shape of the guide column is circular.

[0012] Based on the above technical solution: the stirring column is arranged along the width direction of the guide cavity, which can ensure that the seeds in the guide cavity are fully stirred. The design of the circular stirring column reduces the friction resistance with the seeds, making the stirring process smoother and more efficient. The stirring column moves up and down in the storage box and the guide cavity, which can effectively prevent the seeds from clumping and getting stuck. The extension rod introduces the stirring column into the guide cavity, ensuring that the seeds in the guide cavity can also be fully stirred, further reducing the risk of seed jamming. The design of the agitator takes into account the characteristics of rapeseed, which is small in diameter and easy to get stuck. By optimizing parameters such as the number, arrangement and cross-sectional shape of the stirring columns, the adaptability of the device to rapeseed is enhanced.

[0013] A further improved solution: the upper end of the slide extends out of the storage box, the linkage mechanism includes a driving rod arranged at the upper end of the slide, the driving rod extends downward, and a driving column is provided at the lower end of the driving rod, the driving rod and the driving column are both located on the outside of the storage box, the linkage mechanism also includes a cam arranged on the discharge shaft, and the cam drives the slide to move up and down relative to the storage box through the driving column.

[0014] Based on the above technical solution, the upper end of the carriage is designed to extend outside the storage box, facilitating the installation and actuation of the linkage mechanism. This extension allows for easy connection and actuation of the agitator. A downward-extending drive rod is located on the extension of the carriage. The lower end of the drive rod is equipped with a drive post. Both components are located outside the storage box. This design allows the drive mechanism to be conveniently installed outside the storage box, with power transmitted through the drive rod and drive post. The linkage mechanism also includes a cam mounted on the discharge shaft. As the discharge shaft rotates, the cam rotates accordingly, and through contact with the drive post, it drives the carriage up and down relative to the storage box. This design cleverly utilizes the rotational force of the discharge shaft to provide stable vertical motion for the agitator. By installing the drive mechanism outside the storage box and using the discharge shaft's rotational force to drive the agitator, the internal structure of the seeding device is greatly simplified. This design reduces the number of internal transmission components, minimizes energy loss, and improves overall efficiency. The coordinated design of the cam and drive post ensures the stability of the agitator during its vertical motion. This stable drive method reduces the risk of failure due to loose or worn transmission components.

[0015] A further improved solution: the driving rod is fixed to the upper end of the slide through a cross bar, the driving rod is provided at both ends of the slide, the cam is provided at both ends of the discharge shaft, the cam corresponds to the driving column one by one, and the cross-sectional shape of the driving column is circular.

[0016] Based on the above technical solution, the drive rod is securely fixed to the upper end of the carriage via a crossbar. This fixing ensures the stability and reliability of the drive rod during power transmission, preventing agitator failure due to loosening of the drive rod. Drive rods are located at both ends of the carriage, ensuring balanced driving force from both ends during the agitator's vertical movement. This design helps reduce yaw and vibration during carriage movement, improving agitator stability and stirring performance. Corresponding to the drive rods at both ends of the carriage, cams are also located at both ends of the discharge shaft. As the discharge shaft rotates, the cams at both ends simultaneously drive the corresponding drive posts, ensuring smooth and even vertical movement of the agitator. The circular cross-section of the drive posts reduces friction between the drive posts and the cams, ensuring smoother transmission of driving force to the carriage and agitator. Furthermore, the circular cross-section of the drive posts facilitates vertical movement under the action of the cams. By providing drive rods at both ends of the carriage and cams at both ends of the discharge shaft, the agitator receives balanced driving force from both ends during vertical movement. This design significantly enhances the agitator's stability and mixing efficiency, preventing seed jamming and uneven mixing caused by yaw and vibration. Because the agitator receives balanced driving force during its up-and-down movement, it effectively agitates the seeds within the storage box and guide chamber. This optimized mixing effect helps prevent seed clumping and jamming, improving seeding uniformity and efficiency.

[0017] A further improved solution: the stirring column and the extension rod are an integrated structure, the extension rod and the slide are an integrated structure, the stirring column and the quantitative groove are staggered, and a circular chamfer is provided between the stirring column and the slide to prevent seeds from getting stuck between the stirring column and the slide.

[0018] Based on the above technical solution: The integrated structural design reduces the number of connecting parts and enhances the structural integrity and stability. This design makes the seeding device more stable and reliable during operation, reducing failures caused by loose or failed connections. The integrated connection between the stirring column and the extension rod, and the extension rod and the carriage, ensures the stability and uniformity of the stirring column during the stirring process. The staggered arrangement of the stirring column and the metering trough prevents interference with the metering trough, ensuring the normal seeding function of the metering trough. The arc chamfer design effectively reduces the phenomenon of seed sticking during the stirring process.

[0019] A further improved solution: a guide groove is further provided on the storage box, the drive rod cooperates with the guide groove, a guide plate forming the guide groove is provided on the storage box, the guide plate is welded to the outer wall of the storage box, and the guide plate protrudes from the storage box, and the guide groove is formed between two adjacent guide plates.

[0020] Based on the above technical solution: The close fit between the guide groove and the drive rod ensures the stability and accuracy of the agitator during its up and down movement. This design reduces the risk of failure of the agitator due to deviation or shaking, and improves the reliability and stability of the seeding device. The precise design of the guide groove enables the drive rod to move along a predetermined trajectory when moving up and down. This not only improves the mixing accuracy of the agitator, but also ensures the consistency and uniformity of the seeding device during the seeding process. The guide plate is welded to the outer wall of the storage box and protrudes from the storage box to form the guide groove. This design enhances the structural strength of the guide groove, allowing it to withstand greater pressure and friction, thereby extending the service life of the seeding device.

[0021] A further improved solution: the cam is mounted on the discharge shaft via a key connection, the transmission mechanism comprises a driven sprocket arranged on the discharge shaft and a driving sprocket arranged on the travel wheel, and a transmission chain is arranged between the driving sprocket and the driven sprocket.

[0022] Based on the above technical solution, the keyed connection between the cam and the discharge shaft, as well as the chain drive design of the transmission mechanism, ensure stable power transmission during operation. This design reduces the risk of failure due to unstable power transmission, thereby improving the reliability and stability of the seeding device. The chain drive features efficient power transmission, reducing energy loss and improving the overall efficiency of the seeding device. Furthermore, the chain drive offers excellent adaptability and flexibility, allowing it to adapt to varying working environments and conditions. The chain drive design simplifies the seeding device's internal structure and reduces the number of transmission components. This not only reduces manufacturing costs but also improves the maintainability and service life of the seeding device. The chain drive design enables the seeding device to adapt to varying terrain and soil conditions. Furthermore, by adjusting the number of sprocket teeth and the length of the chain, the transmission ratio can be easily changed to accommodate varying sowing speeds and demands.

[0023] A further improved solution: the driven sprocket is mounted on the discharge shaft via a key connection, and the driving sprocket and the travel wheel are an integrated structure.

[0024] Based on the above technical solution: The key connection is a stable connection method that ensures the secure installation of the driven sprocket on the discharge shaft. Through the key connection, the driven sprocket can rotate stably with the discharge shaft and is not prone to loosening or falling off. The one-piece structure means that there are no additional connecting parts between the driving sprocket and the travel wheel. This design reduces the risk of failure at the connection and improves the overall stability and reliability of the structure. The one-piece structure of the driving sprocket and the travel wheel ensures seamless power transmission. The rotation of the travel wheel can directly drive the rotation of the driving sprocket, reducing energy loss in the intermediate link.

[0025] A further improved solution: the walking wheel is mounted on the frame through a mounting rod, the frame is provided with a mounting hole that cooperates with the mounting rod, and the mounting rod is fixed in the mounting hole by a screw; the upper end of the guide tube is provided with a receiving cover for receiving seeds, the receiving cover is communicated with the guide tube, and the shape of the receiving cover is a truncated cone with a larger upper part and a smaller lower part.

[0026] Based on the above technical solution, the flexible connection between the running wheels and the frame allows the seeding device to maintain stable operation on uneven surfaces. The screw fixing method ensures the stability of the running wheels on the frame, preventing uneven seeding or malfunctions caused by loose running wheels. The frustum-shaped receiving cover design allows seeds to enter the guide tube more smoothly, reducing seed spillage. The screw fixing method makes installation and removal of the running wheels simple and quick, facilitating subsequent maintenance and replacement.

[0027] The beneficial effects of the present invention are:

[0028] The quantitative discharger of the present invention achieves a quantitative discharge of seeds through a quantitative groove on the discharge shaft. This design ensures a consistent amount of seeds each time they are sown, avoiding uneven sowing caused by too many or too few seeds. As the discharge shaft rotates, the quantitative groove discharges a quantitative amount of seeds from the storage box. Under the action of gravity, the seeds enter the guide tube and are precisely sown into the soil through the grooves formed by the furrow opener. This process ensures precise seed placement and improves the accuracy and efficiency of sowing. The agitator on the storage box is connected in a vertical sliding direction and can move up and down within the storage box to stir the seeds. This stirring action effectively prevents the seeds from being stuck in the seed box due to mutual compression, ensuring that the seeds can smoothly enter the quantitative groove. The agitator is connected to the discharge shaft by a linkage mechanism. When the discharge shaft rotates, it drives the agitator to move up and down within the storage box. This linkage mechanism coordinates the stirring action of the agitator with the discharge action of the discharge shaft, further improving the smoothness and uniformity of sowing.

[0029] The travel wheel drives the discharge shaft through a transmission mechanism, enabling mechanized operation of the sowing device. This design improves sowing efficiency and reduces labor intensity. This sowing device is not only suitable for sowing rapeseed, but also has the potential to be used for sowing other small seeds due to its quantitative discharge and agitator design. This enhances the device's versatility and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For users of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1 The present invention is a front view of a rapeseed planting and sowing device that is not easily clogged.

[0032] Figure 2 The diagram is a schematic diagram of the internal structure of a rapeseed planting and sowing device that is not easily clogged according to the present invention.

[0033] Figure 3 It is a schematic diagram of a rapeseed planting and sowing device that is not easily clogged according to the present invention.

[0034] Figure 4 The present invention is a schematic diagram of the position of a slide relative to a discharge shaft in a rapeseed planting and sowing device that is not easily clogged.

[0035] Description of the numbers in the figure:

[0036] 1-frame; 2-storage box; 3-travel wheel; 4-discharge shaft; 5-metering trough; 6-guide pipe; 7-furrow opener; 8-agitator; 9-storage chamber; 10-guide chamber; 11-slide; 12-extension rod; 13-stirring column; 14-driving rod; 15-driving column; 16-cam; 17-guide plate; 18-driven sprocket; 19-driving sprocket; 20-transmission chain; 21-mounting rod; 22-receiving cover. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by users of this technology in the field without creative work are within the scope of protection of the present invention.

[0038] refer to Figures 1 to 4, a rapeseed planting and sowing device that is not easy to be blocked, comprising a frame 1, a storage box 2 for storing seeds is provided on the frame 1, a quantitative discharger is provided on the storage box 2, a walking wheel 3 is further provided on the frame 1, the walking wheel 3 is rotatably connected to the frame 1, the quantitative discharger comprises a discharge shaft 4, the discharge shaft 4 is rotatably connected to the storage box 2, the walking wheel 3 drives the discharge shaft 4 to rotate through a transmission mechanism, and a quantitative groove 5 is provided on the discharge shaft 4, and the discharge shaft 4 uses the quantitative groove 5 to discharge the seeds in the storage box 2 in a quantitative manner during the rotation process;

[0039] The frame 1 is also provided with a sowing assembly, which includes a guide tube 6 provided on the frame 1, and a furrow opener 7 provided at the lower end of the guide tube 6. The seeds discharged by the discharge shaft 4 enter the guide tube 6 under the action of gravity, and the guide tube 6 guides the seeds into the furrow formed by the furrow opener 7.

[0040] The storage box 2 is also provided with a stirrer 8 for stirring the seeds in the storage box 2 so that the seeds in the storage box 2 can smoothly enter the quantitative groove 5. The stirrer 8 is slidably connected to the storage box 2 in the vertical direction, and the discharge shaft 4 drives the stirrer 8 to move up and down in the storage box 2 through a linkage mechanism.

[0041] The storage box 2 is provided with a storage chamber 9 for storing seeds and a guide chamber 10 for guiding the seeds in the storage chamber 9 to the discharge shaft 4. The guide chamber 10 is in communication with the metering chamber. The stirrer 8 extends into the guide chamber 10 and stirs the seeds in the guide chamber 10. The width of the guide chamber 10 is smaller than that of the storage chamber 9. The stirrer 8 includes a slide 11 slidably connected to the storage box 2. The slide 11 is provided with an extension rod 12 extending into the guide chamber 10. Stirring columns 13 are evenly arranged on the extension rod 12. The stirring columns 13 are arranged along the width direction of the guide chamber 10, and the cross-section of the guide columns is circular.

[0042] Specifically, the upper end of the slide 11 extends out of the storage box 2, and the linkage mechanism includes a drive rod 14 provided at the upper end of the slide 11. The drive rod 14 extends downward, and a drive column 15 is provided at the lower end of the drive rod 14. The drive rod 14 and the drive column 15 are both located outside the storage box 2. The linkage mechanism also includes a cam 16 provided on the discharge shaft 4. The cam 16 drives the slide 11 to move up and down relative to the storage box 2 through the drive column 15. The drive rod 14 is fixed to the upper end of the slide 11 by a cross bar. The drive rod 14 is provided at both ends of the slide 11. The cam 16 is provided at both ends of the discharge shaft 4. The cam 16 corresponds one-to-one with the drive column 15, and the cross-section of the drive column 15 is circular.

[0043] The stirring column 13 and the extension rod 12 are integrally formed, the extension rod 12 and the slide 11 are integrally formed, the stirring column 13 and the metering groove 5 are staggered, and a circular chamfer is provided between the stirring column 13 and the slide 11 to prevent seeds from getting stuck between the stirring column 13 and the slide 11. The storage box 2 is also provided with a guide groove, the driving rod 14 cooperates with the guide groove, and the storage box 2 is provided with a guide plate 17 forming the guide groove. The guide plate 17 is welded to the outer wall of the storage box 2, and the guide plate 17 protrudes from the storage box 2, forming the guide groove between two adjacent guide plates 17. The guide plate 17 can also be an integral structure with the storage box 2.

[0044] Specifically, the cam 16 is mounted on the discharge shaft 4 via a key connection. The transmission mechanism includes a driven sprocket 18 provided on the discharge shaft 4 and a driving sprocket 19 provided on the travel wheel 3. A transmission chain 20 is provided between the driving sprocket 19 and the driven sprocket 18. The driven sprocket 18 is mounted on the discharge shaft 4 via a key connection. The driving sprocket 19 and the travel wheel 3 are an integrated structure.

[0045] The travel wheel 3 is mounted on the frame 1 via a mounting rod 21. The frame 1 is provided with a mounting hole that cooperates with the mounting rod 21. The mounting rod 21 is fixed to the mounting hole via a screw. The upper end of the guide tube 6 is provided with a receiving cover 22 for receiving seeds. The receiving cover 22 is connected to the guide tube 6 and has a truncated cone shape with a larger upper portion and a smaller lower portion. The truncated cone shape provides a larger receiving area, thereby effectively preventing seeds from spilling.

[0046] The working principle of this embodiment is as follows:

[0047] Load the rapeseed seeds into the storage box 2, ensuring that the amount of seeds is appropriate to avoid too much or too little. Check whether the connections between the various components are firm, especially the connections between the quantitative discharger, the agitator 8 and the storage box 2 and the frame 1. Start the sowing device and check whether the running wheel 3, the transmission mechanism, the discharge shaft 4 and other components are operating normally. Push or drive the sowing device forward, and the running wheel 3 begins to rotate. The running wheel 3 drives the discharge shaft 4 to rotate through the transmission mechanism, and the quantitative trough 5 begins to discharge the seeds in the storage box 2 in a quantitative manner. The discharged seeds enter the guide tube 6 under the action of gravity and are guided by the guide tube 6 to the groove formed by the furrow opener 7. The furrow opener 7 sows the seeds into the soil, completing the sowing action. At the same time, the rotation of the discharge shaft 4 drives the agitator 8 to move up and down in the storage box 2 to stir the seeds and prevent them from getting stuck.

[0048] The present invention is not limited to the above-mentioned optional implementation methods. Under the premise of not conflicting with each other, the various solutions can be arbitrarily combined. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the scope of protection of the present invention.

Claims

1. A rapeseed planting and sowing device that is not easily blocked, characterized by: The machine comprises a frame, a storage box for storing seeds is provided on the frame, a quantitative discharger is provided on the storage box, a travel wheel is further provided on the frame, the travel wheel is rotatably connected to the frame, the quantitative discharger comprises a discharge shaft, the discharge shaft is rotatably connected to the storage box, the travel wheel drives the discharge shaft to rotate through a transmission mechanism, a quantitative groove is provided on the discharge shaft, and the discharge shaft uses the quantitative groove to discharge the seeds in the storage box in a quantitative manner during the rotation process; The frame is further provided with a sowing assembly, which includes a guide tube provided on the frame, a furrow opener provided at the lower end of the guide tube, and the seeds discharged by the discharge shaft enter the guide tube under the action of gravity, and the guide tube guides the seeds into the furrow formed by the furrow opener; The storage box is also provided with a stirrer for stirring the seeds in the storage box so that the seeds in the storage box can smoothly enter the quantitative groove. The stirrer is slidably connected to the storage box in the vertical direction, and the discharge shaft drives the stirrer to move up and down in the storage box through a linkage mechanism.

2. The non-clogging rapeseed planting and sowing device according to claim 1, characterized in that: The storage box is provided with a storage cavity for storing seeds and a guide cavity for guiding the seeds in the storage cavity to the discharge shaft. The guide cavity is communicated with the metering cavity. The agitator extends into the guide cavity, and the agitator stirs the seeds in the guide cavity. The width of the guide cavity is smaller than the width of the storage cavity.

3. The non-clogging rapeseed planting and sowing device according to claim 2, characterized in that: The agitator includes a slide slidably connected to the storage box, the slide is provided with an extension rod extending into the guide cavity, the extension rod is evenly provided with stirring columns, the stirring columns are arranged along the width direction of the guide cavity, and the cross-sectional shape of the guide columns is circular.

4. The non-clogging rapeseed planting and sowing device according to claim 3, characterized in that: The storage box is extended from the upper end of the slide, and the linkage mechanism includes a driving rod arranged at the upper end of the slide, and the driving rod extends downward. A driving column is provided at the lower end of the driving rod, and the driving rod and the driving column are both located on the outside of the storage box. The linkage mechanism also includes a cam arranged on the discharge shaft, and the cam drives the slide to move up and down relative to the storage box through the driving column.

5. The non-clogging rapeseed planting and sowing device according to claim 4, characterized in that: The driving rod is fixed to the upper end of the slide through a cross bar. The driving rod is provided at both ends of the slide. The cam is provided at both ends of the discharge shaft. The cam corresponds to the driving column one by one, and the cross-sectional shape of the driving column is circular.

6. The non-clogging rapeseed planting and sowing device according to claim 5, characterized in that: The stirring column and the extension rod are an integrated structure, the extension rod and the slide are an integrated structure, the stirring column and the quantitative groove are staggered, and a circular chamfer is provided between the stirring column and the slide to prevent seeds from getting stuck between the stirring column and the slide.

7. The non-clogging rapeseed planting and sowing device according to claim 6, characterized in that: The storage box is also provided with a guide groove, the driving rod cooperates with the guide groove, and the storage box is provided with a guide plate forming the guide groove. The guide plate is welded to the outer wall of the storage box, and the guide plate protrudes from the storage box, and the guide groove is formed between two adjacent guide plates.

8. The non-clogging rapeseed planting and sowing device according to claim 4, characterized in that: The cam is mounted on the discharge shaft via a key connection. The transmission mechanism comprises a driven sprocket arranged on the discharge shaft and a driving sprocket arranged on the travel wheel. A transmission chain is provided between the driving sprocket and the driven sprocket.

9. The non-clogging rapeseed planting and sowing device according to claim 8, characterized in that: The driven sprocket is mounted on the discharge shaft via a key connection, and the driving sprocket and the travel wheel are an integrated structure.

10. The non-clogging rapeseed planting and sowing device according to claim 9, characterized in that: The walking wheel is mounted on the frame through a mounting rod, the frame is provided with a mounting hole that cooperates with the mounting rod, and the mounting rod is fixed in the mounting hole by a screw; the upper end of the guide tube is provided with a receiving cover for receiving seeds, the receiving cover is communicated with the guide tube, and the shape of the receiving cover is a frustum that is larger at the top and smaller at the bottom.