Automatic seeder for uniform seeding

Abstract

The present invention proposes an automatic seeder with uniform sowing, which relates to the technical field of agricultural machinery, including a sowing box, a seed cavity is provided in the sowing box, a rotating shaft is installed through the sowing box, and the rotating shaft passes through the seed cavity. The present invention proposes an automatic seeder with uniform sowing, which can stir the seeds at the connection between the feeding pipe and the seed cavity through the provided sowing box, rotating shaft, movable roller, stirring blade, swing block, partition plate, lifting sleeve, half box, transmission structure and opening and closing structure, reduce the situation that seeds are piled up and stuck, ensure the smoothness of seed feeding, accurately control the sowing amount by the cooperation of the swing block, partition plate and the feeding pipe, and at the same time, the partition plate will move the seeds in the feeding pipe to reduce the situation that seeds are stuck, and can also ensure that the appropriate depth is inserted into the field soil, ensure that the seeds can be sown to the appropriate depth, ensure the sowing amount and sowing quality, and reduce the smoothness of seed sowing.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to an automatic seeder for uniform sowing. Background Art

[0002] A seeder is a planting machine that sows crop seeds. Currently, most large-scale agricultural planting bases use intelligent automatic seeders for sowing. Intelligent automatic seeders integrate mechanical, electronic, and information technologies, aiming to achieve automation, precision, and efficiency in the crop sowing process. However, in reality, there are still a large number of small and medium-sized agricultural growers who do not have sufficient funds to support the use of intelligent automatic seeders. Most of them use manual sowing or small mechanical seeders.

[0003] Most of the existing small mechanical seeders complete the sowing operation by the downward movement of the seeds under their own gravity, and control the amount of seeds during sowing through a valve timing switch. However, in actual situations, the seeds are piled up in the seed box of the seeder, and the seeds may be squeezed and stuck to each other, making it impossible to ensure uniform sowing, and manual reseeding is required. In addition, when controlling the amount of seeds released, most of them fall downward due to the action of gravity, but the seeder will produce different degrees of vibration during movement, resulting in different amounts of seeds released, making it impossible to achieve uniform sowing. Summary of the invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes an automatic seeder for uniform sowing.

[0005] The present invention provides an automatic seeder for uniform sowing, comprising a sowing box, a seed cavity is provided in the sowing box, a rotating shaft is installed through the sowing box, the rotating shaft passes through the seed cavity, and a plurality of stirring blades are fixedly installed on a section of the outer periphery of the rotating shaft located in the seed cavity;

[0006] Both ends of the rotating shaft are equipped with moving rollers;

[0007] A feeding pipe is fixedly installed at the bottom of the seeding box, and the feeding pipe is divided into a narrow section and a wide section. The top of the narrow section is connected to the seed cavity in the seeding box, and the top of the wide section is connected to the bottom of the narrow section. A swing block is rotatably installed in the wide section of the feeding pipe, and a vertically arranged partition plate is fixedly installed on the swing block, and the partition plate can separate the top surface of the swing block. A transmission structure is installed on the seeding box, and the transmission structure can convert the rotation of the rotating shaft into a reciprocating swinging motion of the swing block.

[0008] The upper sliding sleeve of the feeding tube is provided with a lifting sleeve, and the transmission structure can also convert the rotational motion of the rotating shaft into the reciprocating lifting motion of the lifting sleeve;

[0009] Two half-boxes are rotatably mounted on the bottom end of the lifting sleeve, and the two half-boxes can be spliced ​​together. An opening and closing structure is mounted on the seeding box, and the opening and closing structure can control the opening and closing of the two half-boxes.

[0010] Preferably, the transmission structure comprises a turntable, a linkage rod and a transmission assembly; the turntable is rotatably mounted on the inner wall of the feeding tube, and the turntable is located below the swing block, one end of the linkage rod is rotatably connected to the turntable, and the other end of the linkage rod is rotatably connected to the bottom of the swing block;

[0011] The transmission assembly is used to convert the rotational motion of the rotating shaft into the rotational motion of the connecting rod.

[0012] Preferably, the transmission assembly includes a No. 1 transmission rod, a No. 1 gear, a No. 2 transmission rod, a No. 1 end face gear, a No. 2 end face gear and a No. 2 gear; the No. 1 transmission rod is rotatably mounted on the seeding box, one end of the No. 1 transmission rod is fixedly connected to the turntable, the No. 1 gear is fixedly mounted on the end of the No. 1 transmission rod away from the turntable, the No. 2 transmission rod is rotatably mounted on the seeding box, one end of the No. 2 transmission rod is fixedly connected to the No. 1 end face gear, the No. 1 end face gear is meshed with the No. 1 gear, the other end of the No. 2 transmission rod is fixedly connected to the No. 2 end face gear, the No. 2 gear is mounted on the rotating shaft, and the No. 2 end face gear is meshed with the No. 2 gear.

[0013] Preferably, the transmission structure also includes a driving gear, an adjusting gear plate and a sliding shaft; the driving gear is mounted on a No. 1 transmission rod, the adjusting gear plate is rotatably mounted on the seed box, and the driving gear is meshed with the adjusting gear plate, the sliding shaft is fixedly connected to one side of the lifting sleeve, and the side of the adjusting gear plate is provided with an annular lifting groove that slides with the sliding shaft.

[0014] Preferably, the opening and closing structure comprises a limit bend plate and a pulling spring; the limit bend plate is fixedly mounted on the seeding box, the number of the limit bend plates is two, the two limit bend plates are respectively located on both sides of the lifting sleeve, the vertical section of the limit bend plate abuts against the side of the lifting sleeve, the bottom end of the vertical section of the limit bend plate is fixedly connected to the top end of the inclined section of the limit bend plate, the inclined sections of the two limit bend plates form an eight-shaped shape, and the space between the two inclined sections of the limit bend plates is an eight-shaped opening section;

[0015] The number of the pulling springs is the same as the number of the half boxes and is arranged in one-to-one correspondence. The two ends of the pulling spring are respectively connected to one side of the half box and the inner wall of the inclined section, and the pulling spring is always in a stretched state.

[0016] Preferably, when the lifting sleeve drives the half-side box to enter the gap between the feeding tube and the vertical section of the limiting bent plate, the two half-side boxes are closed;

[0017] When the lifting sleeve drives the half box to arrive in the eight-shaped opening section, the pulling spring pulls the half box to rotate and open on the lifting sleeve.

[0018] Preferably, a movable notch is provided on one side of the lifting sleeve, and the No. 1 transmission rod passes through the movable notch.

[0019] Preferably, a handrail is fixedly mounted on the side of the seed box.

[0020] The automatic seeder with uniform sowing proposed by the present invention has the following beneficial effects: through the set seeding box, rotating shaft, moving roller, stirring blade, feed pipe, swing block, partition plate, lifting sleeve, half box, transmission structure and opening and closing structure, the seeds at the connection between the feed pipe and the seed cavity can be stirred to reduce the situation of seed accumulation and jamming, and ensure smooth seed feeding. The cooperation of the swing block, partition plate and feed pipe can accurately control the sowing amount. At the same time, the partition plate will move the seeds in the feed pipe to reduce the situation of seeds being stuck. It can also ensure that the seed is inserted into the field soil at an appropriate depth, ensure that the seeds can be sown to an appropriate depth, ensure the sowing amount and sowing quality, and reduce the smoothness of seed sowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of an automatic seeder for uniform sowing proposed by the present invention;

[0022] Figure 2 A partial side sectional view of an automatic seeder for uniform sowing proposed by the present invention;

[0023] Figure 3 A partial front cross-sectional view of an automatic seeder for uniform sowing proposed by the present invention;

[0024] Figure 4 An automatic seeder for uniform sowing proposed by the present invention Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 A schematic diagram of the structure of a swing block and a partition plate in an automatic seeder for uniform sowing proposed by the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of a lifting sleeve, a half box and a sliding shaft in an automatic seeding machine for uniform seeding proposed by the present invention;

[0027] Figure 7 The present invention is a schematic side view of an adjusting gear plate in an automatic seeder for uniform sowing.

[0028] In the figure: 1. seeding box; 2. rotating shaft; 3. moving roller; 4. stirring blade; 5. feeding tube; 6. swing block; 7. partition plate; 8. lifting sleeve; 9. half box; 10. turntable; 11. connecting rod; 12. transmission rod No. 1; 13. gear No. 1; 14. transmission rod No. 2; 15. end gear No. 1; 16. end gear No. 2; 17. gear No. 2; 18. driving gear; 19. adjusting gear plate; 20. sliding shaft; 21. limit bending plate; 22. pulling spring; 23. movable notch; 24. handrail. DETAILED DESCRIPTION

[0029] Reference Figure 1-Figure 7 The present invention proposes an automatic seeder for uniform sowing, comprising a sowing box 1, a seed cavity is provided in the sowing box 1, a feeding port is provided on the top of the sowing box 1, and farmers can pour seeds into the seed cavity through the feeding port. A rotating shaft 2 is installed through the sowing box 1, and the rotating shaft 2 passes through the seed cavity. A plurality of stirring blades 4 are fixedly installed on a section of the outer periphery of the rotating shaft 2 located in the seed cavity, and moving rollers 3 are installed at both ends of the rotating shaft 2. A handrail 24 is fixedly installed on the side of the sowing box 1. During specific operation, the farmer grasps the handrail 24 to hold the entire seeder, and the farmer pushes the entire seeder to roll on the field through the moving roller 3. When the moving roller 3 rolls, the rotating shaft 2 will be driven to rotate synchronously, and the rotating rotating shaft 2 and the stirring blades 4 will move the seeds in the seed cavity, so that the seeds in the seed cavity can be moved at any time, thereby reducing the situation where the seeds are piled up and stuck, and ensuring the smooth feeding and sowing of the seeds.

[0030] like Figure 2 , Figure 3 and Figure 5 As shown in, a feed pipe 5 is fixedly installed at the bottom of the seeding box 1. The feed pipe 5 is divided into a narrow section and a wide section. The top of the narrow section is connected to the seed cavity in the seeding box 1. The stirring blade 4 can stir the seeds at the connection between the feed pipe 5 and the seed cavity to reduce the situation where the seeds are accumulated and stuck, and ensure the smooth discharge of the seeds. The top of the wide section is connected to the bottom end of the narrow section. A swing block 6 is rotatably installed in the wide section of the feed pipe 5. The swing block 6 includes two triangular plates and a rectangular plate. The two triangular plates are symmetrically installed on both sides of the rectangular plate. A vertically arranged partition plate 7 is fixedly installed on the swing block 6. The partition plate 7 can separate the top surface of the swing block 6 (the swing block 6 and the partition plate 7 form two corner grooves, and the two corner grooves are located on both sides of the partition plate 7). The shapes and positional relationships of the feed pipe 5, the swing block 6 and the partition plate 7 are shown in detail as follows Figure 2 As shown in FIG. 1 , a transmission structure is installed on the seed box 1, and the transmission structure can convert the rotation of the shaft 2 into the reciprocating swinging motion of the swing block 6; in actual operation, as shown in FIG. Figure 2As shown in the figure, the seeds fall from the seed cavity into the narrow section of the feed tube 5, and then fall into the corner groove between the swing block 6 and the partition plate 7. Since the corner groove can only hold a sufficient amount of seeds, the transmission structure drives the swing block 6 and the partition plate 7 to rotate to a state inclined to the left. The seeds falling into the left corner groove slide to the left under the influence of gravity. The seeds in the narrow section of the feed tube 5 fall into the corner groove on the right side of the swing block 6, and then the transmission structure drives the swing block 6 to rotate to the state shown in the figure. Figure 2 In the state of tilting to the right, as the seeder moves forward, the transmission structure drives the swing block 6 and the partition plate 7 to reciprocate, which can accurately control the sowing amount and reduce excessive or insufficient sowing. When the partition plate 7 swings, the seeds in the narrow section of the feed pipe 5 will be moved back and forth to reduce the situation where seeds are piled up and stuck.

[0031] like Figure 2 , Figure 3 and Figure 6 As shown in the figure, the feeding tube 5 is slidably sleeved with a lifting sleeve 8, and the transmission structure can also convert the rotational action of the rotating shaft 2 into the reciprocating lifting action of the lifting sleeve 8. The bottom end of the lifting sleeve 8 is rotatably installed with two half-side boxes 9, and the two half-side boxes 9 can be spliced ​​together. An opening and closing structure is installed on the seeding box 1, and the opening and closing structure can control the opening and closing of the two half-side boxes 9. The two half-boxes 9 are combined to maintain the same Figure 6 In the state of the seeder, in the process of pushing the seeder forward, the transmission structure will drive the lifting sleeve 8 and the two half-boxes 9 to descend synchronously, the two half-boxes 9 are combined and descend synchronously, the bottom tips of the two half-boxes 9 are inserted into the soil, and after the half-boxes 9 are inserted into the soil, the opening and closing structure will open the two half-boxes 9 inserted into the soil, and the opened half-boxes 9 will open the pits on the soil, so that the seeds falling through the corner grooves enter the two half-boxes 9. After the two half-boxes 9 are opened, the fallen seeds fall into the pits where the soil is inserted. After the seeds fall into the pits, the two half-boxes 9 are opened. The half box 9 and the lifting sleeve 8 are raised and pulled out of the soil hole. When the two half boxes 9 are pulled out of the hole, the two half boxes 9 are gradually rotated together, which can reduce the soil entering the half boxes 9 and ensure that the seeds can fall into the hole smoothly. After the soil in the hole is dug up, the hole is ensured to remain in the dug-up state, which is convenient for farmers to check the amount of seeds in the hole and ensure that each hole is sown. When inserted into the soil, the two half boxes 9 are in a closed state. When the two half boxes 9 are in a closed state, the two half boxes 9 form a cavity with an opening upward, which is convenient for the seeds in the feeding pipe 5 to fall in.

[0032] like Figure 2 , Figure 3 and Figure 4As shown in, the transmission structure includes a turntable 10, a connecting rod 11 and a transmission assembly; the turntable 10 is rotatably installed on the inner wall of the discharge tube 5, and the turntable 10 is located below the rocking block 6, one end of the connecting rod 11 is rotatably connected to the turntable 10, and the axis of rotation of one end of the connecting rod 11 on the turntable 10 is parallel to the axis of the turntable 10, but does not overlap, and the other end of the connecting rod 11 is rotatably connected to the bottom of the rocking block 6, and the transmission assembly is used to convert the rotation action of the rotating shaft 2 into the rotation action of the connecting rod 11. When the seeder is pushed forward, the rotation action of the rotating shaft 2 drives the turntable 10 to rotate through the transmission assembly. The rotating turntable 10 will drive one end of the connecting rod 11 to make a circular motion and pull the connecting rod 11. The connecting rod 11 will reciprocally pull the rocking block 6 or push the rocking block 6, so that the rocking block 6 makes a reciprocating rocking motion, thereby completing quantitative seed taking and sowing, and strictly controlling the sowing amount.

[0033] like Figure 2 , Figure 3 and Figure 4 As shown in the figure, the transmission assembly includes a No. 1 transmission rod 12, a No. 1 gear 13, a No. 2 transmission rod 14, a No. 1 end gear 15, a No. 2 end gear 16 and a No. 2 gear 17; the No. 1 transmission rod 12 is rotatably mounted on the seeding box 1, one end of the No. 1 transmission rod 12 is fixedly connected to the turntable 10, the No. 1 gear 13 is fixedly mounted on the end of the No. 1 transmission rod 12 away from the turntable 10, the No. 2 transmission rod 14 is rotatably mounted on the seeding box 1, one end of the No. 2 transmission rod 14 is fixedly connected to the No. 1 end gear 15, the No. 1 end gear 15 is meshed with the No. 1 gear 13, and the other end of the No. 2 transmission rod 14 is meshed with the No. 1 gear 13. One end is fixedly connected with the No. 2 end gear 16, and the No. 2 gear 17 is mounted on the rotating shaft 2. The No. 2 end gear 16 is meshed with the No. 2 gear 17. When the rotating shaft 2 rotates, the rotating shaft 2 drives the No. 2 gear 17 to rotate, and the No. 2 gear 17 drives the No. 2 end gear 16 to rotate, and the No. 2 end gear 16 drives the No. 2 transmission rod 14 to rotate, and the No. 2 transmission rod 14 drives the No. 1 end gear 15 to rotate, and the rotating No. 1 end gear 15 drives the No. 1 gear 13 to rotate, and the No. 1 gear 13 drives the No. 1 transmission rod 12 and the turntable 10 to rotate synchronously, thereby controlling the swing block 6 to make a reciprocating swinging motion.

[0034] like Figure 3 , Figure 4 and Figure 7As shown in, the transmission structure also includes a driving gear 18, an adjusting gear plate 19 and a sliding shaft 20; the driving gear 18 is sleeved on the No. 1 transmission rod 12, the adjusting gear plate 19 is rotatably installed on the seed box 1, and the driving gear 18 is meshed with the adjusting gear plate 19, the sliding shaft 20 is fixedly connected to one side of the lifting sleeve 8, and the side of the adjusting gear plate 19 is provided with an annular lifting groove that slides with the sliding shaft 20. When the No. 1 transmission rod 12 rotates, the No. 1 transmission rod 12 will drive the driving gear 18 to rotate synchronously, and the rotating driving gear 18 drives the adjusting gear plate 19 to rotate. When the adjusting gear plate 19 rotates, the sliding shaft 20 slides in the annular lifting groove. Since the distances between the positions of the annular lifting groove and the axis of the rotating shaft of the adjusting gear plate 19 are different, and because the lifting sleeve 8 cannot rotate, the sliding shaft 20 will drive the lifting sleeve 8 to follow the sliding shaft 20 for lifting movement, and the lifting sleeve 8 will drive the two half boxes 9 to rise and fall synchronously.

[0035] like Figure 2 and Figure 6 As shown in , the opening and closing structure includes a limit bend plate 21 and a pulling spring 22; the limit bend plate 21 is fixedly installed on the seed box 1, and the number of the limit bend plates 21 is two, and the two limit bend plates 21 are respectively located on both sides of the lifting sleeve 8, and the vertical section of the limit bend plate 21 is against the side of the lifting sleeve 8, and the bottom end of the vertical section of the limit bend plate 21 is fixedly connected to the top end of the inclined section of the limit bend plate 21, and the inclined sections of the two limit bend plates 21 form an eight-shaped shape, and the space between the inclined sections of the two limit bend plates 21 is an eight-shaped opening section. The number of pulling springs 22 is the same as the number of half-side boxes 9 and is arranged one by one. The two ends of the pulling spring 22 are respectively connected to one side of the half-side box 9 and the inner wall of the inclined section, and the pulling spring 22 is always in a stretched state.

[0036] When the lifting sleeve 8 drives the half box 9 to enter the gap between the discharge pipe 5 and the vertical section of the limiting bent plate 21, the two half boxes 9 are closed. When the half box 9 is not opened, the half box 9 is limited by the vertical section of the limiting bent plate 21, so that the half box 9 cannot be rotated to open, ensuring that the half box 9 is in a closed state and inserted into the soil, reducing the amount of soil entering the half box 9, thereby reducing the obstruction of seeds, ensuring smooth sowing, and ensuring that the seeds can be sown in the pits in the soil, ensuring the quality of sowing, and ensuring the germination rate of seeds.

[0037] like Figure 2 and Figure 6 As shown in the figure, when the lifting sleeve 8 drives the half box 9 to reach the eight-shaped opening section, the pulling spring 22 pulls the half box 9 to rotate and open on the lifting sleeve 8. When the half box 9 moves vertically downward, the half box 9 is inserted into the soil to a suitable depth, and then the soil is dug up to ensure that the seeds fall into the holes and the depth of the holes. It is also convenient for farmers to observe the sowing amount in the holes and ensure that each hole can be evenly sown.

[0038] like Figure 3 , Figure 4 and Figure 6 As shown in the figure, a movable notch 23 is opened on one side of the lifting sleeve 8, and the No. 1 transmission rod 12 passes through the movable notch 23. The No. 1 transmission rod 12 passes through the movable notch 23, thereby reducing the length of the feeding pipe 5 and facilitating the lifting and lowering movement of the lifting sleeve 8 without being hindered.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic seeder for uniform sowing, characterized in that: The invention comprises a seeding box (1), wherein a seeding cavity is provided in the seeding box (1), a rotating shaft (2) is installed through the seeding box (1), the rotating shaft (2) passes through the seeding cavity, and a plurality of stirring blades (4) are fixedly installed on a section of the outer periphery of the rotating shaft (2) located in the seeding cavity; Both ends of the rotating shaft (2) are equipped with movable rollers (3); A feed pipe (5) is fixedly mounted at the bottom of the seeding box (1), and the feed pipe (5) is divided into a narrow section and a wide section. The top end of the narrow section is connected to the seed cavity in the seeding box (1), and the top end of the wide section is connected to the bottom end of the narrow section. A swing block (6) is rotatably mounted in the wide section of the feed pipe (5), and a vertically arranged partition plate (7) is fixedly mounted on the swing block (6). The partition plate (7) is capable of separating the top surface of the swing block (6). A transmission structure is mounted on the seeding box (1), and the transmission structure is capable of converting the rotational motion of the rotating shaft (2) into a reciprocating swinging motion of the swing block (6); The upper sliding sleeve of the discharge tube (5) is provided with a lifting sleeve (8), and the transmission structure can also convert the rotational motion of the rotating shaft (2) into a reciprocating lifting motion of the lifting sleeve (8); Two half boxes (9) are rotatably mounted on the bottom end of the lifting sleeve (8), and the two half boxes (9) can be spliced ​​together. An opening and closing structure is mounted on the seeding box (1), and the opening and closing structure can control the opening and closing of the two half boxes (9); The transmission structure comprises a rotating disk (10), a connecting rod (11) and a transmission assembly; the rotating disk (10) is rotatably mounted on the inner wall of the feeding tube (5), and the rotating disk (10) is located below the swing block (6); one end of the connecting rod (11) is rotatably connected to the rotating disk (10), and the other end of the connecting rod (11) is rotatably connected to the bottom of the swing block (6); The transmission assembly is used to convert the rotational motion of the rotating shaft (2) into the rotational motion of the connecting rod (11); The transmission assembly comprises a first transmission rod (12), a first gear (13), a second transmission rod (14), a first end face gear (15), a second end face gear (16) and a second gear (17); the first transmission rod (12) is rotatably mounted on the seeding box (1), one end of the first transmission rod (12) is fixedly connected to the rotating disk (10), the first gear (13) is fixedly mounted on the end of the first transmission rod (12) away from the rotating disk (10), the second transmission rod (14) is rotatably mounted on the seeding box (1), one end of the second transmission rod (14) is fixedly connected to the first end face gear (15), the first end face gear (15) is meshed with the first gear (13), the other end of the second transmission rod (14) is fixedly connected to the second end face gear (16), the second gear (17) is sleeved on the rotating shaft (2), and the second end face gear (16) is meshed with the second gear (17); The transmission structure further comprises a driving gear (18), an adjusting gear plate (19) and a sliding shaft (20); the driving gear (18) is sleeved on a No. 1 transmission rod (12); the adjusting gear plate (19) is rotatably mounted on the seeding box (1), and the driving gear (18) is meshed with the adjusting gear plate (19); the sliding shaft (20) is fixedly connected to one side of the lifting sleeve (8); and a side surface of the adjusting gear plate (19) is provided with an annular lifting groove that is slidably matched with the sliding shaft (20).

2. The automatic seeder for uniform sowing according to claim 1, characterized in that: The opening and closing structure comprises a limit bending plate (21) and a pulling spring (22); the limit bending plate (21) is fixedly mounted on the seeding box (1); the number of the limit bending plates (21) is two; the two limit bending plates (21) are respectively located on both sides of the lifting sleeve (8); the vertical section of the limit bending plate (21) abuts against the side of the lifting sleeve (8); the bottom end of the vertical section of the limit bending plate (21) is fixedly connected to the top end of the inclined section of the limit bending plate (21); the inclined sections of the two limit bending plates (21) form an eight-shaped opening section; and the space between the inclined sections of the two limit bending plates (21) is an eight-shaped opening section; The number of the pulling springs (22) is the same as the number of the half boxes (9) and they are arranged in one-to-one correspondence, the two ends of the pulling spring (22) are respectively connected to one side of the half box (9) and the inner wall of the inclined section, and the pulling spring (22) is always in a stretched state.

3. The automatic seeder for uniform sowing according to claim 2, characterized in that: When the lifting sleeve (8) drives the half box (9) to enter the gap between the discharge pipe (5) and the vertical section of the limiting bent plate (21), the two half boxes (9) are closed; When the lifting sleeve (8) drives the half box (9) to arrive in the eight-shaped opening section, the pulling spring (22) pulls the half box (9) on the lifting sleeve (8) to rotate and open.

4. The automatic seeder for uniform sowing according to claim 1, characterized in that: A movable notch (23) is provided on one side of the lifting sleeve (8), and the first transmission rod (12) passes through the movable notch (23).

5. The automatic seeder for uniform sowing according to claim 1, characterized in that: A handrail (24) is fixedly mounted on the side of the seed box (1).

Images