Rape seeding device

Abstract

The invention relates to a rape seeding device. Comprising a shell, a seed separating part and a driving mechanism, a seed storage cavity is formed in the shell, the shell is provided with a discharge port extending in the vertical direction, the shell is provided with a first baffle and a second baffle which are located on the two sides of the bottom of the discharge port, the first baffle is provided with an air inlet, and the second baffle is provided with a seed discharging pipe; one end of the seed separating part extends into the seed storage cavity from the discharging opening, the upper end of the seed separating part is hinged to the shell and is driven by a driving mechanism to rotate, and a seed taking opening is formed in the bottom of the seed separating part; the thickness of the seed separating part is smaller than the depth of the seed storage cavity; according to the seed taking device, the seed taking piece stretches into the seed storage cavity in a reciprocating mode to take seeds, the two sides of the seed taking opening are full of the seeds during seed taking, the two sides of the seed taking opening are clamped by the first baffle and the second baffle respectively in the process that the seeds are pulled out after being taken, and therefore the seeds cannot fall out due to equipment vibration or road bumping, and the seed taking efficiency is improved. The accuracy of each time of seeding is effectively ensured.

Description

Technical Field

[0001] The present application relates to the technical field of sowing equipment, and in particular to a rapeseed sowing device. Background Art

[0002] There are three main ways to sow rapeseed: row sowing, spot sowing and broadcast sowing. Spot sowing is suitable for fields that were previously planted with rice, barren slopes, high ground and other plots that are not suitable for tillage. Spot sowing is divided into three methods: no-till spot sowing, no-till digging spot sowing and tillage digging spot sowing. Tillage digging spot sowing is suitable for any field where rapeseed can be planted. The row spacing of the nest is 35 cm × 246 cm, and the nest depth is about 3 cm. After digging the nest, spot sowing is carried out, and then farmyard manure is poured (if conditions permit), and the soil is covered. Generally, 3-5 seeds are planted in each nest.

[0003] Because the rapeseed grows in a more uniform manner, it is more conducive to ventilation between crops, more uniform sunlight exposure, and is conducive to field management, so it is widely used by farmers. In the process of rapeseed sowing, most people grab the seeds directly by hand and throw them into the soil hole. Because the rapeseed grains are very small, it is difficult to control the number when grabbing them by hand, and often too much is sown. After the seedlings emerge, some of them have to be pulled out, wasting seeds. At the same time, the speed of manual sowing is very slow.

[0004] Although some existing sowing equipment can replace manual sowing and improve the efficiency of rapeseed sowing, the sowing equipment will inevitably vibrate during operation, resulting in the inaccurate amount of sowing each time.

[0005] For example, the patent with publication number CN101589668B specifically discloses a seeding machine, which takes seeds by means of a seed throwing spoon. When the device vibrates, the seeds may fall out of the seed throwing spoon, resulting in inaccurate sowing quantity each time. Summary of the invention

[0006] In order to solve or partially solve the problems existing in the related art, the present application provides a rapeseed sowing device, which aims to reduce the impact of equipment vibration on the accuracy of each sowing quantity.

[0007] A rapeseed sowing device comprises a housing, a seed separation member and a driving mechanism;

[0008] A seed storage cavity is constructed in the shell, a discharge port extending in a vertical direction is provided on the shell, a first baffle plate and a second baffle plate are constructed on the shell and are located on both sides of the bottom of the discharge port, an air inlet is provided on the first baffle plate, and a seed discharge tube is provided on the second baffle plate;

[0009] One end of the seed separator extends from the discharge port into the seed storage cavity, and the upper end is hinged to the shell and driven to rotate by the driving mechanism. A seed taking port is provided at the bottom of the seed separator; the thickness of the seed separator is less than the depth of the seed storage cavity;

[0010] Among them, the seed separator is driven by the driving mechanism, first extending into the seed storage cavity, and the seeds in the seed storage cavity enter the seed removal port, and then the seed separator is pulled outward and reset, so that the air inlet, the seed removal port, and the seed discharge tube are in the same straight line, and the high-pressure air ejected from the air inlet blows the seeds in the seed removal port into the seed discharge tube for discharge.

[0011] In some embodiments, the shell is in the shape of two-thirds of a circular cake, and the discharge port is arranged on a side wall at the notch of the shell.

[0012] In some schemes, the seed separator is fan-shaped, and the lower bottom surface of the seed separator is in clearance fit with the inner bottom surface of the seed storage cavity;

[0013] The seed taking port is arranged through the lower bottom surface of the seed dividing member.

[0014] In some schemes, an adjustment cavity is provided above the seed removal port, an adjustment block that can move up and down is slidably installed in the adjustment cavity, and an adjustment mechanism that drives the adjustment block to move up and down is provided above the adjustment block.

[0015] In some embodiments, the adjustment mechanism includes a fixed base plate, a spring, a first slider, a first connecting rod, a wedge block, an adjustment screw, and a cover plate;

[0016] The fixed base plate, the spring, the first slider and the wedge block are arranged in order from bottom to top in the adjusting cavity; the fixed base plate is fixedly connected to the seeding piece, and a through hole is arranged in the middle of the fixed base plate; the first slider is slidably connected to the adjusting cavity, and a first connecting rod extending downward is arranged in the middle of the first slider, and the lower end of the first connecting rod passes through the through hole and is fixedly connected to the adjusting block;

[0017] A cover plate is provided on the right side of the wedge block, and the adjusting screw abuts against the wedge block after passing through the cover plate, and the adjusting screw is screwed with the cover plate.

[0018] In some embodiments, the driving mechanism includes a connecting frame, a crank wheel, a rocker, and a motor;

[0019] The connecting frame is fixedly connected to the housing, the crank wheel is rotatably mounted on the connecting frame, and is driven to rotate by the motor;

[0020] One end of the rocker is hinged to the seeding piece; the other end of the rocker is hinged to the crank wheel, and the hinge points of the two are eccentrically arranged.

[0021] In some embodiments, an air supply mechanism is further included, wherein the air supply mechanism includes a piston cylinder, a second slider, a second connecting rod, and a third connecting rod;

[0022] The second slider is slidably installed in the piston cylinder, one end of the second slider is provided with the second connecting rod slidably connected to the piston cylinder, the free end of the second connecting rod is hinged to the third connecting rod, the other end of the third connecting rod is hinged to the crank wheel, and the hinge point is eccentrically arranged;

[0023] The right end of the piston cylinder is connected to the air inlet through a pipeline.

[0024] In some embodiments, a hinge point between the rocker and the crank wheel and a hinge point between the third connecting rod and the crank wheel are concentrically arranged.

[0025] In some embodiments, a pull-out valve is provided on the air inlet, and a valve stem of the pull-out valve is fixedly connected to the seed dividing member.

[0026] In some embodiments, a feeding port is provided on the top of the shell, and a sealing cover is provided on the feeding port.

[0027] The technical solution provided by this application may have the following beneficial effects:

[0028] The present application performs seed taking by reciprocatingly extending the seed taking piece into the seed storage cavity. When taking seeds, both sides of the seed taking port are filled with seeds. After the seeds are taken out, during the process of pulling them out, both sides of the seed taking port are clamped by the first baffle plate and the second baffle plate respectively. Therefore, the seeds will not fall out due to equipment vibration or road bumps, effectively ensuring the accuracy of each sowing.

[0029] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0031] Figure 1 is a structural schematic diagram of a seeding device shown in an embodiment of the present application;

[0032] Figure 2 is a schematic structural diagram of a housing of a seeding device shown in an embodiment of the present application;

[0033] Figure 3 is another structural schematic diagram of a seeding device shown in an embodiment of the present application;

[0034] Figure 4 yes Figure 3 A magnified image of point A;

[0035] Reference numerals:

[0036] 1. Shell; 11. Seed storage chamber; 12. Discharge port; 13. First baffle; 14. Second baffle; 15. Air inlet; 16. Seed discharge tube; 17. Feeding port; 18. Pull-out valve; 2. Seed sorting piece; 21. Seed removal port; 22. Adjustment chamber; 23. Adjustment block; 24. Adjustment mechanism; 241. Fixed base plate; 242. Spring; 243. First slider; 244. First connecting rod; 245. Wedge block; 246. Adjustment screw; 247. Cover plate; 3. Driving mechanism; 31. Connecting frame; 32. Crank wheel; 33. Rocker; 34. Motor; 4. Air supply mechanism; 41. Piston cylinder; 42. Second slider; 43. Second connecting rod; 44. Third connecting rod; 5. Cover. DETAILED DESCRIPTION

[0037] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0038] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0039] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] Existing on-demand seeding equipment is easily affected by its own vibration and bumps in the road during travel, resulting in inaccurate number of seeds sown each time.

[0042] In order to solve the above technical problems, embodiment 1:

[0043] See also Figure 1 and Figure 2 The present application provides a rape seeding device, comprising a housing 1, a seed separator 2, and a driving mechanism 3; the housing 1 is made of a hard material such as metal or plastic, and its front view is roughly in the shape of two-thirds of a round cake, a seed storage cavity 11 is constructed in the housing 1, and a discharge port 12 extending in the vertical direction is provided on one of the sides of the notch of the housing 1, and the discharge port 12 extends from the center of the housing 1 to the inner side wall of the seed storage cavity 11. The housing 1 is also constructed with a first baffle 13 and a second baffle 14 located on both sides of the bottom of the discharge port 12, the first baffle 13 and the second baffle 14 are arranged oppositely, and extend from the side with the discharge port 12 along the circumferential direction of the housing 1, respectively, and an air inlet 15 is provided on the first baffle 13, and the air inlet 15 is connected to an external air supply device through a pipeline, and the external air supply device can be a pressure pump, an air compressor, etc.; the second baffle 14 is provided with a seed discharging pipe 16, and the seed discharging pipe 16 is used to guide the seeds to the position where they need to be sown.

[0044] The left end of the seed separator 2 extends into the seed storage cavity from the discharge port, the upper end of the seed separator 2 is hinged to the middle part of the outer shell 1 through a rotating shaft, and is driven to rotate by a driving mechanism 3, and a seed taking port 21 is provided at the bottom of the seed separator 2; the thickness of the seed separator 2 is less than the depth of the seed storage cavity 11, that is, the thickness of the seed separator 2 is less than the distance between the front and rear inner walls of the seed storage cavity 11, that is, when the seed separator 2 extends into the seed storage cavity 11, there is a certain distance between the front and rear side walls of the seed separator 2 and the front and rear inner walls of the seed storage cavity 11, and the size of the distance is at least greater than the diameter of the largest rapeseed seed.

[0045] The application process:

[0046] In the initial state, the left end of the seed separator 2 at least partially extends into the discharge port 12, thereby blocking the discharge port 12, so that the seed storage chamber 11 forms a closed space, and the seed storage chamber 11 can be used to place rapeseed seeds; the other parts of the seed separator 2 are located outside the seed storage chamber 11, and the bottom is clamped between the first baffle 13 and the second baffle 14, and the air inlet 15, the seed removal port 21, and the seed discharge tube 16 are on the same straight line.

[0047] During sowing, the seed separator 2 is driven by the driving mechanism 3, firstly rotates clockwise and extends into the seed storage chamber 11, and the seeds in the seed storage chamber 11 enter the seed taking port 21, and then the seed separator 2 rotates counterclockwise and is pulled outward to reset, so that the air inlet 15, the seed taking port 21, and the seed discharge tube 16 are in the same straight line again, and the external air supply equipment supplies air, and blows air from the air inlet 15 to the seed taking port 21, so that the seeds in the seed taking port 21 are blown into the seed discharge tube 16, and the seeds are guided to the sowing position by the seed discharge tube 16.

[0048] When taking out seeds, the present application has both sides of the seed taking port 21 filled with seeds. Therefore, equipment vibration, road bumps, etc. will not cause the seeds to fall out of the seed taking port 21. After the seeds are taken out, during the process of pulling them out, the two sides of the seed taking port 21 are clamped by the first baffle 13 and the second baffle 14 respectively, and the seeds will not fall out due to equipment vibration or road bumps, thereby effectively ensuring the accuracy of each sowing.

[0049] Furthermore, each time the seed separator 2 is extended into the seed storage cavity 11 , the seeds in the seed storage cavity 11 can be disturbed once, thereby effectively avoiding the problem of poor seed fluidity caused by problems such as seed sticking, and effectively ensuring that the rapeseed seeds can smoothly enter the seed removal port 21 .

[0050] Embodiment 2:

[0051] Based on the first embodiment, in this embodiment, if Figure 2-Figure 4 As shown, the seed separator 2 is fan-shaped. When the seed separator 2 rotates and extends into the seed storage cavity 11, the contact area between the seed separator 2 and the seeds in the seed storage cavity 11 is large, which can generate a large disturbance force, and the seeds in the seed storage cavity 11 are easier to disperse. In some specific embodiments, the seed separator 2 is arc-shaped or strip-shaped.

[0052] The lower bottom surface of the seed separator 2 is gap-matched with the inner bottom surface of the seed storage cavity 11; the seed removal port 21 is arranged through the lower bottom surface of the seed separator 2. When the seed separator 2 extends into the seed storage cavity 11, it is beneficial for the seeds to flow along the inner wall of the seed storage cavity 11 to the seed removal port 21.

[0053] In this embodiment, an adjusting cavity 22 is provided above the seed taking port 21, and an adjusting block 23 which can move up and down is slidably installed in the adjusting cavity 22. An adjusting mechanism 24 which drives the adjusting block 23 to move up and down is provided above the adjusting block 23.

[0054] When in use, the adjusting block 23 can be driven to move up and down by the adjusting mechanism 24, so as to adjust the size of the seed taking port 21, and then adjust the number of seeds that can be taken each time, so as to adapt to the sowing needs under different planting conditions, and the applicability is more extensive.

[0055] In this embodiment, the adjustment mechanism 24 includes a fixed base plate 241, a spring 242, a first slider 243, a first connecting rod 244, a wedge block 245, an adjusting screw 246, and a cover plate 247; the fixed base plate 241, the spring 242, the first slider 243, and the wedge block 245 are arranged in order from bottom to top in the adjustment chamber 22; the fixed base plate 241 is fixedly connected to the seeding member 2, and a through hole is arranged in the middle of the fixed base plate 241; the first slider 243 is slidably connected to the adjustment chamber 22, and a first connecting rod 244 extending downward is arranged in the middle of the first slider 243, and the lower end of the first connecting rod 244 is fixedly connected to the adjustment block 23 after passing through the through hole; a cover plate 247 is arranged on the right side of the wedge block 245, and the adjusting screw 246 is abutted against the wedge block 245 after passing through the cover plate 247, and the adjusting screw 246 is threadedly screwed with the cover plate 247. In some specific embodiments, the adjusting screw 246 is rotatably connected to the wedge block 245 after passing through the cover plate 247.

[0056] During adjustment, if the adjusting screw 246 is rotated to move to the left, the adjusting screw 246 drives the wedge block 245 to move to the left, and the wedge block 245 drives the first slider 243 to move downward, and the first slider 243 drives the adjusting block 23 to move downward through the first connecting rod 244; if the adjusting screw 246 is rotated to move to the right, the first slider 243 moves upward under the action of the spring 242, and then drives the wedge block 245 to move to the right until it contacts the adjusting screw 246, and the first slider 243 drives the adjusting block 23 to move upward through the first connecting rod 244.

[0057] In this embodiment, the driving mechanism 3 includes a connecting frame 31, a crank wheel 32, a rocker 33, and a motor 34; the connecting frame 31 is fixedly connected to the housing 1, the crank wheel 32 is rotatably mounted on the connecting frame 31, and is driven to rotate by the motor 34; one end of the rocker 33 is hinged to the seeding member 2; the other end of the rocker 33 is hinged to the crank wheel 32, and the hinge points of the two are eccentrically arranged. The crank wheel 32 and the rocker 33 are combined to form a crank rocker mechanism, and the motor 34 is a stepper motor 34 or a servo motor 34. When working, the motor 34 is powered on and rotated, driving the crank wheel 32 to rotate, thereby driving the seeding member 2 to swing left and right through the rocker 33 to take seeds.

[0058] In this embodiment, the high-pressure air ejected from the air inlet 15 is provided by the air supply mechanism 4, which includes a piston cylinder 41, a second slider 42, a second connecting rod 43, and a third connecting rod 44; a second slider 42 is slidably installed in the piston cylinder 41, and the second slider 42 is sealed and connected to the piston cylinder 41. One end of the second slider 42 is provided with a second connecting rod 43 slidably connected to the piston cylinder 41. The piston cylinder 41, the second slider 42, and the second connecting rod 43 form an air pumping mechanism. The free end of the second connecting rod 43 is hinged to the third connecting rod 44, and the other end of the third connecting rod 44 is hinged to the crank wheel 32, and the hinge point is eccentrically arranged. The crank wheel 32, the third connecting rod 44, and the second connecting rod 43 form another crank rocker mechanism; the right end of the piston cylinder 41 is connected to the air inlet 15 through a pipe.

[0059] During operation, the crank wheel 32 drives the second connecting rod 43 to swing left and right, thereby driving the second slider 42 to move in the piston cylinder 41. When the piston cylinder 41 moves to the left, air is inhaled, and when the piston cylinder 41 moves to the right, air is blown.

[0060] In this embodiment, the hinge point between the seeding member 2 and the crank wheel 32, the rotation center of the crank wheel 32, and the second connecting rod 43 are approximately in the same straight line, and the hinge point between the rocker 33 and the crank wheel 32 and the hinge point between the third connecting rod 44 and the crank wheel 32 are concentrically arranged. A first one-way valve that can only allow air to enter the piston cylinder 41 is also provided at the bottom of the right side of the piston cylinder 41, and a second one-way valve that can only allow air to exit is provided on the connecting pipe between the piston cylinder 41 and the air inlet 15.

[0061] In this way, when the seed-seedling piece 2 moves to the left to take seeds, the second slider 42 also moves to the left synchronously, the air supply mechanism 4 inhales air, the air inlet 15 is closed by the seed-seedling piece 2, and air enters the piston cylinder 41 from the first one-way valve; when the seed-seedling piece 2 moves to the right to take seeds, the second slider 42 also moves to the right synchronously, and the air supply mechanism 4 blows air, but since the air inlet 15 is closed by the seed-seedling piece 2, the air cannot be blown out, and the air pressure in the piston cylinder 41 increases until the seed-taking port 21 on the seed-seedling piece 2 is connected to the air inlet 15, and then blown out at one time, effectively increasing the blowing pressure, thereby ejecting the seeds, which is beneficial to improving the accuracy of the seeding position.

[0062] Compared with using external air supply equipment for air supply, this embodiment does not require additional control elements to control the timing of blowing, which effectively saves the manufacturing cost of the device. At the same time, the control is simpler, it is a purely mechanical structure, and the control is more stable.

[0063] In the embodiment, a pull-out valve 18 is provided on the air inlet 15, and the valve stem of the pull-out valve 18 is fixedly connected to the seed dividing piece 2. When the seed dividing piece 2 rotates clockwise, the valve stem of the pull-out valve 18 is driven to move to the left, and the pull-out valve 18 is closed. After the seed dividing piece 2 rotates counterclockwise to reset, the valve stem of the pull-out valve 18 is driven to move to the right, and the pull-out valve 18 is opened for blowing. By setting the pull-out valve 18, the sealing of the air inlet 15 by the seed dividing piece 2 is replaced, and the matching accuracy of the seed dividing piece 2 and the outer shell 1 is reduced, which is beneficial to reducing the use cost of the device.

[0064] In the embodiment, a feeding port 17 is provided on the top of the housing 1 , and a sealing cover 5 is provided on the feeding port 17 .

[0065] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A rapeseed sowing device, characterized in that: It comprises a housing (1), a seed dividing member (2), and a driving mechanism (3); A seed storage cavity (11) is constructed inside the shell (1), and a discharge port (12) extending in a vertical direction is provided on the shell (1). A first baffle (13) and a second baffle (14) are constructed on the shell (1) and are located on both sides of the bottom of the discharge port (12), and an air inlet (15) is provided on the first baffle (13), and a seed discharge tube (16) is provided on the second baffle (14); One end of the seed separator (2) extends from the discharge port (12) into the seed storage cavity (11), and the upper end is hinged to the housing (1) and driven to rotate by the driving mechanism (3). A seed removal port (21) is provided at the bottom of the seed separator (2); the thickness of the seed separator (2) is less than the depth of the seed storage cavity (11); The seed separator (2) is driven by the driving mechanism (3) to first extend into the seed storage chamber (11), and the seeds in the seed storage chamber (11) enter the seed removal port (21). Then, the seed separator (2) is pulled outward and reset, so that the air inlet (15), the seed removal port (21), and the seed discharge tube (16) are in the same straight line, and the high-pressure air ejected from the air inlet (15) blows the seeds in the seed removal port (21) into the seed discharge tube (16) for discharge.

2. A rapeseed sowing device according to claim 1, characterized in that: The outer shell (1) is in the shape of two-thirds of a round cake, and the discharge port (12) is arranged on a side wall at the notch of the outer shell (1).

3. The rapeseed sowing device according to claim 1, characterized in that: The seed separator (2) is fan-shaped, and the lower bottom surface of the seed separator (2) is gap-matched with the inner bottom surface of the seed storage cavity (11); The seed taking port (21) is arranged through the lower bottom surface of the seed sorting member (2).

4. A rapeseed sowing device according to claim 3, characterized in that: An adjusting cavity (22) is provided above the seed taking port (21), an adjusting block (23) which can move up and down is slidably installed in the adjusting cavity (22), and an adjusting mechanism (24) which drives the adjusting block (23) to move up and down is provided above the adjusting block (23).

5. A rapeseed sowing device according to claim 4, characterized in that: The adjustment mechanism (24) comprises a fixed base plate (241), a spring (242), a first sliding block (243), a first connecting rod (244), a wedge block (245), an adjustment screw (246), and a cover plate (247); The fixed base plate (241), the spring (242), the first slider (243) and the wedge block (245) are arranged in sequence from bottom to top in the adjusting cavity (22); the fixed base plate (241) is fixedly connected to the seed dividing member (2), and a through hole is arranged in the middle of the fixed base plate (241); the first slider (243) is slidably connected to the adjusting cavity (22), and a first connecting rod (244) extending downward is arranged in the middle of the first slider (243), and the lower end of the first connecting rod (244) passes through the through hole and is fixedly connected to the adjusting block (23); A cover plate (247) is provided on the right side of the wedge block (245), and the adjusting screw (246) passes through the cover plate (247) and abuts against the wedge block (245), and the adjusting screw (246) is threadedly connected to the cover plate (247).

6. The rapeseed sowing device according to claim 1, characterized in that: The driving mechanism (3) comprises a connecting frame (31), a crank wheel (32), a rocker (33), and a motor (34); The connecting frame (31) is fixedly connected to the housing (1); the crank wheel (32) is rotatably mounted on the connecting frame (31) and is driven to rotate by the motor (34); One end of the rocker (33) is hinged to the seed dividing member (2); the other end of the rocker (33) is hinged to the crank wheel (32), and the hinge points of the two are eccentrically arranged.

7. The rapeseed sowing device according to claim 6, characterized in that: It also includes an air supply mechanism (4), wherein the air supply mechanism (4) includes a piston cylinder (41), a second slider (42), a second connecting rod (43), and a third connecting rod (44); The second slider (42) is slidably installed in the piston cylinder (41), one end of the second slider (42) is provided with the second connecting rod (43) slidably connected to the piston cylinder (41), the free end of the second connecting rod (43) is hinged to the third connecting rod (44), the other end of the third connecting rod (44) is hinged to the crank wheel (32), and the hinge point is eccentrically arranged; The right end of the piston cylinder (41) is connected to the air inlet (15) via a pipeline.

8. The rapeseed sowing device according to claim 7, characterized in that: The hinge point between the rocker (33) and the crank wheel (32) and the hinge point between the third connecting rod (44) and the crank wheel (32) are arranged concentrically.

9. The rapeseed sowing device according to claim 1, characterized in that: The air inlet (15) is provided with a pull-out valve (18), and the valve stem of the pull-out valve (18) is fixedly connected to the seed dividing member (2).

10. The rapeseed sowing device according to claim 1, characterized in that: A feeding port (17) is provided on the top of the housing (1), and a sealing cover (5) is provided on the feeding port (17).

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