Soybean precision seeding device

Abstract

The invention relates to the technical field of soybean seeding, and discloses a soybean precision seeding device which comprises a connecting plate, a handle arranged on the connecting plate, a round hole formed in the connecting plate, a bearing arranged in the round hole, a seeding pipe arranged on an inner ring of the bearing, and a seeding unit arranged on the connecting plate, the seeding unit comprises an anti-blocking component arranged at the lower end of the seeding pipe and a landfill component arranged on the outer wall of the lower part of the seeding pipe; by arranging the anti-blocking component, soil cannot enter the seeding pipe to cause blockage in the process that the seeding pipe is inserted into the land to form small pits, meanwhile, by arranging the landfill component, the seeding burying work can be completed by one person, and after a farmer completes seeding, the soil cannot enter the seeding pipe to form the small pits. The soil around the small pit can be gathered together by rotating the handle, and subsequent peasant households can directly step the surrounding soil into the small pit to directly complete burying work.

Description

Technical Field

[0001] The invention relates to the technical field of soybean sowing, and in particular to a soybean precision sowing device. Background Art

[0002] my country is a large agricultural country, and its vast land is used to grow various crops, among which soybeans are more common. When farmers sow soybeans, they need to sow them equidistantly at 2-5cm from the soil. The row spacing is generally 30-50cm, and the plant spacing is generally 5-10cm. The specific adjustment depends on the region and variety. If soybeans are sown on a large scale, a seeder is usually used. This machine can effectively increase the sowing rate. If it is sown on a small scale or farmers use seeders for low costs, they will use manual sowing. The most common manual sowing method is a handheld seeder. During use, farmers insert the sowing tube in the handheld seeder into the soil at a depth of 2-5cm, and then drop the soybean seeds through the sowing tube into the hole where the sowing tube is inserted to complete the pre-embedding, and then bury the soil on top to complete the sowing.

[0003] Although the existing handheld seeder can effectively sow soybean seeds in the soil, the following problems still exist: the sowing tube in the device needs to be inserted into the soil to form a small pit on the soil, which may cause the soil to be blocked under the sowing tube during the insertion process. This will cause the soybean seeds to be blocked by the blocked soil and will not fall into the small pit when the farmer puts the soybean seeds into the sowing tube, which will lead to the inability to sow normally. The farmer needs to clean the bottom of the sowing tube. At the same time, two people are required to use the handheld seeder at the same time, and one person is required to bury it at the back, which is quite laborious. Therefore, a device needs to be designed so that the sowing tube will not be blocked under it when it is inserted into the soil, so as to ensure the normal sowing of soybean seeds. Summary of the invention

[0004] In view of the problem in the prior art that the lower end of the seeding tube is easily blocked when farmers use a handheld seeder and that additional personnel are required to bury the sown area, a soybean precision seeding device is proposed.

[0005] The present application provides a soybean precision seeding device, the purpose of which is to: by arranging an anti-blocking component, when the seeding tube is inserted into the ground to form a small pit, soil will not enter the interior of the seeding tube to cause blockage; at the same time, by arranging a burial component, one person can complete the seeding and burial work. When the farmer completes the seeding, the soil around the small pit can be gathered together by turning the handle, and the subsequent farmer can directly step the surrounding soil into the small pit to directly complete the burial work.

[0006] The technical solution of the present invention is: a soybean precision seeding device, comprising a connecting plate, a handle arranged on the connecting plate, a circular hole opened on the connecting plate, a bearing arranged in the circular hole, a seeding pipe arranged on the inner ring of the bearing, and a seeding unit arranged on the connecting plate, wherein the seeding unit comprises an anti-blocking component arranged at the lower end of the seeding pipe and a landfill component arranged on the outer wall below the seeding pipe;

[0007] The anti-blocking component includes a soil-breaking cone cylinder arranged at the lower end of the sowing tube, a cone plate arranged on the inner wall of the soil-breaking cone cylinder, a primary tube arranged at the lower end of the cone plate, a secondary tube slidably arranged on the inner wall of the primary tube, a fixed tube arranged at the lower end of the soil-breaking cone cylinder, a feed pipe arranged at the lower end of the secondary tube, a connecting plate arranged on the outer wall of the primary tube, a telescopic spring arranged between the connecting plate and the feed pipe, and a connecting groove opened inside the feed pipe;

[0008] The bearing has a high friction coefficient, the end face shape of the opening at the lower end of the soil-breaking cone is equal to the end face shape of the feed pipe, the upper end of the cone disk is fixedly connected to the sowing pipe, the lower end of the cone disk is fixedly connected to the upper ends of the primary pipe and the secondary pipe, the lower end of the secondary pipe is fixedly connected to the upper end of the connecting groove inside the feed pipe, the other end of the connecting groove is located on the side wall of the feed pipe, and the feed pipe is slidably installed on the inner wall of the fixed pipe.

[0009] Furthermore, the landfill component includes a bearing plate arranged on the outer wall below the sowing tube, a swivel arranged on the upper end of the bearing plate, and a plurality of limit grooves evenly and equidistantly arranged on the bearing plate with the center of the swivel as the axis. A transmission assembly is installed between the swivel and the connecting plate, and a bulldozer assembly is slidably installed in each of the limit grooves.

[0010] Furthermore, the transmission assembly includes a fixed ring arranged at the lower end of the connecting plate, and a long plate evenly and equidistantly arranged between the fixed ring and the rotating ring with the center of the fixed ring as the axis.

[0011] Furthermore, the bulldozer assembly includes a plurality of sliding seats slidably arranged on corresponding limiting grooves, a plurality of sliding plates respectively arranged at the lower ends of the corresponding sliding seats, push rods respectively arranged on the side walls of the corresponding sliding plates, and arc-shaped plates respectively arranged at one end of the corresponding push rods, the end surface of the arc-shaped plate is equal to one quarter of the end surface of the outer wall of the sowing tube, and a moving element is installed between the sliding seat and the swivel.

[0012] Furthermore, the moving element includes a plurality of short rods evenly and equidistantly arranged on the rotating ring with the center of the rotating ring as the axis, shaft rods arranged on a plurality of sliding seats, and pull rods respectively arranged between the short rods and the corresponding shaft rods.

[0013] Furthermore, a plurality of plug rods are fixedly mounted on the lower end of the supporting plate, the lower ends of the plurality of plug rods are all configured to be conical, the lengths of the plurality of plug rods are configured to be 6-7 cm, and the lower ends of the plug rods are on the same horizontal plane as the lower end of the earth-breaking cone.

[0014] Furthermore, the end surface height of the ground-breaking cone is set to 3-4 cm, and the end surface height of the arc plate is set to 3 cm.

[0015] Beneficial effects of the present invention:

[0016] 1. By setting up anti-blocking components, farmers can effectively block soil from entering the pipe opening at the lower end of the sowing pipe when inserting the sowing pipe into the land, preventing the sowing pipe from being blocked, ensuring that the soybean seeds can effectively fall into the small pit, and ensuring the normal sowing of soybeans.

[0017] 2. By setting up the burial component, when the farmer puts the soybean seeds into the sowing tube, by turning the handle, the bulldozer assembly can gather the soil around the sowing tube to the top of the small pit. When the sowing is completed, the farmer can directly step the soil into the small pit to complete the burial, which effectively improves the flexibility of the device and allows one person to complete the sowing and burying of soybeans.

[0018] 3. By setting up a detachable soil-breaking cone, farmers can replace the length of the soil-breaking cone according to the required sowing depth, and then sow soybean seeds in the land at different depths, which effectively improves the flexibility of the device and the wide application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure from a first viewing angle of the present invention;

[0020] Figure 2 It is a schematic diagram of the sowing tube structure of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the anti-blocking component of the present invention;

[0022] Figure 4 For the present invention Figure 2 Schematic diagram of the cross-section plane at A in the middle;

[0023] Figure 5 For the present invention Figure 4 Schematic diagram of the three-dimensional structure;

[0024] Figure 6 It is a schematic diagram of the structure of the landfill component of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the feed pipe before soil insertion of the present invention;

[0026] Figure 8 It is a schematic diagram of the transmission assembly structure of the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure of the moving element of the present invention.

[0028] In the figure:

[0029] 1. Connecting plate; 2. Handle; 3. Bearing; 4. Seeding tube; 5. Soil-breaking cone; 6. Cone disk; 7. Primary tube; 8. Secondary tube; 9. Fixed tube; 10. Feeding tube; 11. Connecting plate; 12. Telescopic spring; 13. Connecting groove; 14. Load-bearing plate; 15. Swivel; 16. Limiting groove; 17. Fixed ring; 18. Long plate; 19. Sliding seat; 20. Sliding plate; 21. Push rod; 22. Arc plate; 23. Short rod; 24. Axle rod; 25. Pull rod; 26. Insert rod. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] Example 1, reference Figure 1-Figure 5 , which is the first embodiment of the present invention, provides a soybean precision seeding device, including a connecting plate 1, a handle 2 fixedly installed on the connecting plate 1, a circular hole opened on the connecting plate 1, a bearing 3 fixedly installed in the circular hole, a seeding pipe 4 fixedly installed on the inner ring of the bearing 3, and also includes a seeding unit installed on the connecting plate 1, the seeding unit includes an anti-blocking component installed at the lower end of the seeding pipe 4 and a landfill component installed on the outer wall below the seeding pipe 4.

[0032] The anti-blocking components include a soil-breaking cone 5 fixedly installed at the lower end of the sowing tube 4, a cone disk 6 fixedly installed on the inner wall of the soil-breaking cone 5, a primary pipe 7 fixedly installed at the lower end of the cone disk 6, a secondary pipe 8 slidably installed on the inner wall of the primary pipe 7, a fixed pipe 9 fixedly installed at the lower end of the soil-breaking cone 5, a feed pipe 10 fixedly installed at the lower end of the secondary pipe 8, a connecting disk 11 fixedly installed on the outer wall of the primary pipe 7, a telescopic spring 12 fixedly installed between the connecting disk 11 and the feed pipe 10, and a connecting groove 13 opened inside the feed pipe 10.

[0033] The bearing 3 has a high friction coefficient. The end face shape of the opening at the lower end of the soil-breaking cone 5 is equal to the end face shape of the feed pipe 10. The upper end of the cone disk 6 is fixedly connected to the sowing pipe 4. The lower end of the cone disk 6 is fixedly connected to the upper ends of the primary pipe 7 and the secondary pipe 8. The lower end of the secondary pipe 8 is fixedly connected to the upper end of the connecting groove 13 inside the feed pipe 10. The other end of the connecting groove 13 is located on the side wall of the feed pipe 10. The feed pipe 10 is slidably installed on the inner wall of the fixed pipe 9.

[0034] Specifically, the bearing 3 has a high friction coefficient, which makes it possible for farmers to use the device normally for sowing, and the sowing tube 4 will not rotate relative to the handle 2 while holding the handle 2. Only when the farmer's torsional force on the handle 2 is greater than the friction force of the bearing 3, the inner and outer rings of the bearing 3 will rotate relative to each other (that is, the sowing tube 4 and the handle 2 rotate relative to each other), which can effectively improve the stability of the device during the sowing process. By providing an anti-blocking component, when the farmer presses the handle 2 to drive the sowing tube 4 and the soil-breaking cone 5 below to move downward, the soil-breaking cone 5 is inserted into the ground, and a small pit is formed after the soil-breaking cone 5 is inserted into the ground. During the insertion into the ground, the feed tube 10 first contacts the ground surface (refer to Figure 7 ), the feed tube 10 contacts the soil and slides upward along the inner wall of the fixed tube 9 under the action of pressure, and the telescopic spring 12 is compressed, so that the bottom end of the feed tube 10 cooperates with the bottom end of the soil-breaking cone 5 to form a closed state, so that the soil will not enter the sowing tube 4 during the downward movement of the soil-breaking cone 5, causing the sowing tube 4 to be blocked. At the same time, by setting the telescopic spring 12, when the soil-breaking cone 5 drops to the specified depth, the farmer puts the seeds into the sowing tube 4, and the seeds enter the connecting groove 13 of the feed tube 10. When the farmer pulls the sowing tube 4 upward, the feed tube 10 slides downward under the elastic force of the telescopic spring 12, so that the feed tube 10 is reset, and one end of the connecting groove 13 in the feed tube 10 is exposed. At this time, the seeds in the connecting groove 13 roll into the small pit under the action of gravity to complete the sowing. This process will not cause soil to enter the soil-breaking cone 5 below the sowing tube 4 to cause blockage, ensuring that the seeds can be placed in the small pit to complete the sowing.

[0035] During use, the farmer moves the sowing tube 4 to the designated position by means of the handle 2, and presses the sowing tube 4 so that the soil-breaking cone 5 below it is inserted into the ground. Figure 7 ) first contacts with the ground, so that the feeding tube 10 slides upward along the inner wall of the fixed tube 9 under the action of pressure and compresses the telescopic spring 12 to make it in a compressed state. At this time, the lower end of the feeding tube 10 forms a seal with the lower end of the soil-breaking cone 5. At this time, when the sowing tube 4 moves downward, the soil-breaking cone 5 is inserted into the ground under the action of pressure. The farmer puts the seeds into the sowing tube 4, and under the action of gravity, it passes through the cone disk 6 in turn through the primary tube 7, the secondary tube 8 and the fixed tube 9, and falls into the connecting groove 13 in the feeding tube 10. When the farmer pulls out the sowing tube 4, the bottom of the soil-breaking cone 5 is no longer in contact with the ground. At this time, the feeding tube 10 slides downward along the inner wall of the fixed tube 9 under the elastic force of the telescopic spring 12. When the feeding tube 10 moves downward, the connecting groove 13 on the side wall of the feeding tube 10 is exposed. At this time, the seeds in the connecting groove 13 fall into the small pit under the action of gravity to complete the sowing of the point.

[0036] Example 2, reference Figure 6-Figure 9 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: the landfill component includes a bearing plate 14 fixedly mounted on the outer wall below the sowing tube 4, a swivel 15 rotatably mounted on the upper end of the bearing plate 14, a plurality of limit slots 16 uniformly and equidistantly arranged on the bearing plate 14 with the center of the swivel 15 as the axis, a transmission assembly is installed between the swivel 15 and the connecting plate 1, and a bulldozer assembly is slidably installed in each limit slot 16. The transmission assembly includes a fixed ring 17 fixedly mounted on the lower end of the connecting plate 1, a long plate 18 uniformly and equidistantly fixedly mounted between the fixed ring 17 and the swivel 15 with the center of the fixed ring 17 as the axis, and a plurality of plug rods 26 are fixedly mounted on the lower end of the bearing plate 14, and the lower ends of the plurality of plug rods 26 are all set to be conical.

[0037] Specifically, the landfill component uses a transmission assembly so that when the soil-breaking cone 5 is inserted into the ground, multiple insertion rods 26 are also inserted into the soil. At this time, multiple insertion rods 26 inserted into the ground limit and fix the sowing tube 4. At this time, when the farmer turns the handle 2, the handle 2 drives the swivel 15 to rotate through the fixed ring 17 and the long plate 18 under the connecting plate 1, and the sowing tube 4 is in a stationary state. The rotation of the swivel 15 drives the bulldozer assembly to run, pushing the soil around the small pit to the top of the small pit, which is convenient for subsequent burial work.

[0038] Reference Figure 6 The bulldozer assembly includes a plurality of sliding seats 19 respectively slidably mounted on the corresponding limiting grooves 16, a plurality of sliding plates 20 respectively fixedly mounted on the lower ends of the corresponding sliding seats 19, push rods 21 respectively fixedly mounted on the side walls of the corresponding sliding plates 20, and arc plates 22 respectively fixedly mounted on one end of the corresponding push rods 21, the end surface of the arc plate 22 is equal to one quarter of the end surface of the outer wall of the sowing tube 4, and a moving element is installed between the sliding seat 19 and the rotating ring 15. The moving element includes a plurality of short rods 23 uniformly and equidistantly fixedly mounted on the rotating ring 15 with the center of the rotating ring 15 as the axis, shaft rods 24 fixedly mounted on the plurality of sliding seats 19, and pull rods 25 respectively rotatably mounted between the short rods 23 and the corresponding shaft rods 24.

[0039] Specifically, when the swivel 15 rotates, the swivel 15 drives the multiple short rods 23 above to perform circular motion. During the circular motion of the multiple short rods 23, the pull rod 25 pulls the shaft rod 24, so that the shaft rod 24 drives the sliding seat 19, the sliding plate 20 and the arc plate 22 to move inward synchronously, and the arc plate 22 pushes the soil around the small pit to the top of the small pit during the inward movement. The farmer rotates the handle 2 at a certain angle and resets the handle 2, and pulls out the sowing tube 4, and then steps on the soil gathered around the small pit into the small pit to complete the filling of the small pit. The whole process does not require the farmer to bend over to operate, which effectively reduces the farmer's fatigue during the sowing process. The operation is simple and quick, and will not cause damage to the farmer's waist.

[0040] During use, after the farmer puts the soybean seeds into the sowing tube 4, the farmer turns the handle 2. Because multiple insertion rods 26 are inserted into the soil to limit the bearing plate 14 and the sowing tube 4, when the handle 2 is rotated, the connecting plate 1 is driven to rotate through the bearing 3, and then the rotating ring 15 is driven to rotate synchronously through the fixed ring 17 and the long plate 18. When the rotating ring 15 rotates, it drives the short rod 23 to make a circular motion. During the circular motion of the short rod 23, the sliding seat 19 is driven to make a horizontal inward motion in the limiting groove 16 through the pull rod 25 and the shaft rod 24, thereby driving the arc plate 22 to move synchronously. During the movement of the arc plate 22, the soil around the small pit is gathered above the small pit. After completing this operation, the handle 2 is reversed to reset the arc plate 22, and the sowing tube 4 and the soil-breaking cone 5 are pulled out, and the soil gathered on the small pit is stepped into the small pit by stepping, thereby completing the burying and sowing of the soybean seeds.

[0041] The remaining structures are the same as those of Example 1.

[0042] Example 3, reference Figure 1 as well as Figure 7 , which is the third embodiment of the present invention, is different from the second embodiment in that the length of the plurality of inserting rods 26 is set to 6-7 cm, and the lower ends of the inserting rods 26 are on the same horizontal plane as the lower end of the earth-breaking cone 5. The end surface height of the earth-breaking cone 5 is set to 3-4 cm, and the end surface height of the arc plate 22 is set to 3 cm.

[0043] Specifically, the end heights of the insertion rod 26, the soil-breaking cone 5, and the arc plate 22 are set. The purpose is that when the farmer completely inserts the soil-breaking cone 5 into the soil, the depth of the small pit formed at this time is 3-4 cm, which is the most suitable depth for sowing soybean seeds. At the same time, the insertion rod 26 can be inserted into the soil, and the lower end of the arc plate 22 is in contact with the soil. The insertion of the insertion rod 26 into the soil can limit the support plate 14 and the sowing tube 4, which is convenient for bulldozing operations. When the arc plate 22 moves, it can push the soil around the small pit to the top of the small pit, which is convenient for subsequent burial.

[0044] The remaining structure is the same as that of Example 2.

[0045] Based on the embodiments 1-3, the working principle of the present invention is as follows: the farmer moves the sowing tube 4 to the designated position by means of the handle 2, and presses the sowing tube 4 so that the soil-breaking cone 5 below it is inserted into the ground. Figure 7 ) first contacts with the ground, so that the feeding tube 10 slides upward along the inner wall of the fixed tube 9 under the action of pressure and compresses the telescopic spring 12 to make it in a compressed state. At this time, the lower end of the feeding tube 10 forms a seal with the lower end of the soil-breaking cone 5. At this time, when the sowing tube 4 moves downward, the soil-breaking cone 5 is inserted into the ground under the action of pressure. The farmer puts the seeds into the sowing tube 4, and under the action of gravity, it passes through the cone disk 6 in turn through the primary tube 7, the secondary tube 8 and the fixed tube 9, and falls into the connecting groove 13 in the feeding tube 10. When the farmer pulls out the sowing tube 4, the bottom of the soil-breaking cone 5 is no longer in contact with the ground. At this time, the feeding tube 10 slides downward along the inner wall of the fixed tube 9 under the elastic force of the telescopic spring 12. When the feeding tube 10 moves downward, the connecting groove 13 on the side wall of the feeding tube 10 is exposed. At this time, the seeds in the connecting groove 13 fall into the small pit under the action of gravity to complete the sowing of the point.

[0046] After the farmer puts the soybean seeds into the sowing tube 4, the farmer turns the handle 2. Because multiple insertion rods 26 are inserted into the soil to limit the bearing plate 14 and the sowing tube 4, when the handle 2 is rotated, the connecting plate 1 is driven to rotate through the bearing 3, and then the rotating ring 15 is driven to rotate synchronously through the fixed ring 17 and the long plate 18. When the rotating ring 15 rotates, it drives the short rod 23 to make a circular motion. During the circular motion of the short rod 23, the sliding seat 19 is driven to make a horizontal inward motion in the limiting groove 16 through the pull rod 25 and the shaft rod 24, thereby driving the arc plate 22 to move synchronously. During the movement of the arc plate 22, the soil around the small pit is gathered above the small pit. After completing this operation, the handle 2 is reversed to reset the arc plate 22, and the sowing tube 4 and the soil-breaking cone 5 are pulled out, and the soil gathered on the small pit is stepped into the small pit by stepping, thereby completing the burying and sowing of the soybean seeds.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A soybean precision seeding device, comprising a connecting plate (1), a handle (2) arranged on the connecting plate (1), a circular hole provided on the connecting plate (1), a bearing (3) arranged in the circular hole, and a seeding tube (4) arranged on the inner ring of the bearing (3), characterized in that: It also comprises a sowing unit arranged on the connecting plate (1), the sowing unit comprising an anti-blocking component arranged at the lower end of the sowing tube (4) and a landfill component arranged on the outer wall below the sowing tube (4); The anti-blocking component comprises a soil-breaking cone (5) arranged at the lower end of the sowing tube (4), a cone disk (6) arranged on the inner wall of the soil-breaking cone (5), a primary tube (7) arranged at the lower end of the cone disk (6), a secondary tube (8) slidably arranged on the inner wall of the primary tube (7), a fixed tube (9) arranged at the lower end of the soil-breaking cone (5), a feed tube (10) arranged at the lower end of the secondary tube (8), a connecting disk (11) arranged on the outer wall of the primary tube (7), a telescopic spring (12) arranged between the connecting disk (11) and the feed tube (10), and a connecting groove (13) provided inside the feed tube (10); The bearing (3) has a high friction coefficient. The end face shape of the lower opening of the soil-breaking cone (5) is equal to the end face shape of the feed pipe (10). The upper end of the cone disk (6) is fixedly connected to the sowing pipe (4). The lower end of the cone disk (6) is fixedly connected to the upper ends of the primary pipe (7) and the secondary pipe (8). The lower end of the secondary pipe (8) is fixedly connected to the upper end of the internal communication groove (13) of the feed pipe (10). The other end of the communication groove (13) is located on the side wall of the feed pipe (10). The feed pipe (10) is slidably mounted on the inner wall of the fixed pipe (9).

2. A soybean precision seeding device according to claim 1, characterized in that: The landfill component comprises a bearing plate (14) arranged on the outer wall below the sowing tube (4), a rotating ring (15) arranged on the upper end of the bearing plate (14), and a plurality of position limiting grooves (16) uniformly and equidistantly arranged on the bearing plate (14) with the center of the rotating ring (15) as the axis, a transmission component is installed between the rotating ring (15) and the connecting plate (1), and a bulldozer component is slidably installed in each of the position limiting grooves (16).

3. A soybean precision seeding device according to claim 2, characterized in that: The transmission assembly comprises a fixed ring (17) arranged at the lower end of the connecting plate (1), and a long plate (18) arranged between the fixed ring (17) and the rotating ring (15) at equal distances with the center of the fixed ring (17) as the axis.

4. A soybean precision seeding device according to claim 3, characterized in that: The bulldozer assembly comprises a plurality of sliding seats (19) respectively slidably arranged on corresponding limiting grooves (16), a plurality of sliding plates (20) respectively arranged at the lower ends of the corresponding sliding seats (19), push rods (21) respectively arranged on the side walls of the corresponding sliding plates (20), and arc-shaped plates (22) respectively arranged at one end of the corresponding push rods (21), wherein the end surface of the arc-shaped plate (22) is equal to one quarter of the end surface of the outer wall of the sowing tube (4), and a moving element is installed between the sliding seat (19) and the rotating ring (15).

5. A soybean precision seeding device according to claim 4, characterized in that: The moving element comprises a plurality of short rods (23) which are evenly and equidistantly arranged on the rotating ring (15) with the center of the rotating ring (15) as the axis, shaft rods (24) which are arranged on a plurality of sliding seats (19), and pull rods (25) which are respectively arranged between the short rods (23) and the corresponding shaft rods (24).

6. A soybean precision seeding device according to claim 5, characterized in that: A plurality of insertion rods (26) are fixedly mounted on the lower end of the bearing plate (14), the lower ends of the plurality of insertion rods (26) are all configured to be conical, the length of the plurality of insertion rods (26) is configured to be 6-7 cm, and the lower ends of the insertion rods (26) and the lower end of the earth-breaking cone (5) are located on the same horizontal plane.

7. A soybean precision seeding device according to claim 6, characterized in that: The end surface height of the soil-breaking cone (5) is set to 3-4 cm, and the end surface height of the arc-shaped plate (22) is set to 3 cm.

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