Auxiliary backfilling elastic pressing type corn seeding device

Abstract

The utility model relates to an auxiliary backfill elastic pressing type corn seeding device, which is characterized in that a frame beam is at least provided with a first support and a second support side by side, the lower part of the first support is hinged with a wheel carrier rod, a soil pressing wheel is rotatably connected to the outer end of the wheel carrier rod, and the upper parts of the wheel carrier rod and the first support are provided with a first pressing mechanism; a U-shaped fork support is hinged to the lower portion of the second support, a main rod body of the U-shaped fork support is hinged to the lower portion of the first support, the roller seeder is rotationally connected between rod bodies on the two sides of the U-shaped fork support, and a second pressure applying mechanism is arranged between the upper portion of the second support and the U-shaped fork support; the roller seeder is mounted in the U-shaped fork bracket to realize self-adaptive earth surface rolling seeding, and the adjustable elastic pressure applying mechanism assists the roller seeder, so that the roller seeder can adaptively adjust elastic downward pressure when facing soil with different hardness, the problem of insufficient seeding depth is avoided, and the emergence rate of corn is ensured.

Description

Technical Field

[0001] This utility model relates to the field of corn planting, and in particular to a corn planting device with auxiliary backfilling and elastic pressure. Background Technology

[0002] Depending on the sowing method and technology, corn planting devices can be divided into several types, such as pneumatic suction type, mechanical type, spot sowing type, and precision seeder. Among them, the roller-type duckbill seeder combines roller drive and duckbill precise sowing. This seeder combines the high efficiency of roller seeders with the precision of duckbill seeders, making it suitable for small-area farmland or family farms. Its principle is that seeds are placed in a seed box located at the top of the seeder. The roller, through its rotational motion in contact with the ground, drives the seeds from the seed box into the roller and then into the duckbill on the circumferential surface, precisely placing them into the soil, ensuring accurate seed placement and avoiding waste or overcrowding. However, this type of seeder has drawbacks. After the duckbill makes a hole in the soil and sows, the soil cannot be backfilled promptly or properly. Furthermore, the roller relies on its own weight for downward pressure sowing, making it difficult to control the sowing depth when facing soils of varying hardness, resulting in insufficient sowing depth and affecting germination rate. These issues require improvement. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes an auxiliary backfilling elastic pressure corn planting device.

[0004] The technical solution of this utility model is: an auxiliary backfilling elastic pressure corn planting device, including a frame beam, a roller seeder, and a pressing wheel. At least a first support and a second support are arranged side by side on the frame beam. The two supports have the same structure and size. A wheel frame rod is hinged to the lower part of the first support. The outer end of the wheel frame rod is bent downward. The pressing wheel is rotatably connected to the outer end of the wheel frame rod. A first pressure mechanism is provided on the upper part of the wheel frame rod and the first support. A U-shaped fork bracket is hinged to the lower part of the second support. The main rod of the U-shaped fork bracket is hinged to the lower part of the first support. The main rod is a bent rod bent downward. The roller seeder is rotatably connected between the two sides of the U-shaped fork bracket. The roller seeder is directly opposite the pressing wheel, and the width of the pressing wheel is greater than the width of the roller seeder. A second pressure mechanism is provided on the upper part of the second support and between the U-shaped fork bracket.

[0005] Preferably, the first pressure-applying mechanism includes a diagonal brace, a diagonal brace spring, and a first adjusting wheel. The upper part of the first support is provided with a first inclined plate, and a reinforcing flange is provided between the first inclined plate and the side of the first support. The diagonal brace passes through a through hole on the first inclined plate and is hinged to the inner end of the lower wheel frame rod. The through hole is an elongated hole with a size larger than the cross-sectional size of the diagonal brace. The upper part of the diagonal brace is provided with a thread, and the lower part of the diagonal brace is provided with a first limiting seat. The diagonal brace spring is sleeved on the diagonal brace between the first limiting seat and the first inclined plate. The first adjusting wheel is threadedly connected to the upper end of the diagonal brace.

[0006] Preferably, the second application mechanism includes a vertical support rod, a vertical support spring, and a second adjusting wheel. The upper part of the second support is provided with a second inclined plate, and a reinforcing flange is provided between the side of the second inclined plate and the second support. The vertical support rod passes through a through hole on the second inclined plate and is hinged to the inner end of the lower U-shaped fork bracket. The through hole is a circular hole with a size larger than the cross-sectional size of the vertical support rod. The upper part of the vertical support rod is provided with a thread, and the lower part of the vertical support rod is provided with a second limiting seat. The vertical support spring is sleeved on the vertical support rod between the second limiting seat and the second inclined plate. The second adjusting wheel is threadedly connected to the upper end of the vertical support rod.

[0007] Preferably, the soil compaction wheel has several annular grooves evenly distributed on its side, covering both ends of the compaction wheel. The compaction wheel is made of stainless steel to avoid rust and soil adhering to its surface.

[0008] Preferably, a main seed box is connected to the inlet of the roller seeder. The lower end of the main seed box has a certain taper, and the upper end of the main seed box is connected to a secondary seed box via a cylindrical tube. The secondary seed box is slightly smaller than the main seed box. Both the main seed box and the secondary seed box are made of transparent plastic.

[0009] Preferably, a portal frame bracket is connected between the two sides of the U-shaped fork bracket. The lower end of the portal frame bracket is connected to the side rod through a sleeve and a top screw, and the secondary seed box is supported from the side by the portal frame bracket.

[0010] The beneficial technical effects of this utility model are as follows: This utility model assists in soil backfilling by connecting a soil pressing wheel to the wheel frame rod, and provides elastic pressure to the soil pressing wheel through an elastic pressure application mechanism, ensuring that the surface soil is evenly backfilled after the roller seeder sows. At the same time, by installing the roller seeder in a U-shaped fork bracket, it can adaptively roll and sow on the ground surface. The adjustable elastic pressure application mechanism assists the roller seeder, enabling it to adapt to different soil hardness and adjust the elastic downward pressure, avoiding the problem of insufficient sowing depth and ensuring the emergence rate of corn. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0012] Figure 2 This is a side view structural diagram of the present invention;

[0013] Figure 3 This is a top view of the structure of this utility model;

[0014] Figure 4 This is a three-dimensional structural diagram of a partial component of this utility model.

[0015] In the diagram, 1. Frame beam, 2. Roller seeder, 21. Main seed box, 22. Cylindrical tube, 23. Secondary seed box, 24. U-shaped fork bracket, 25. Main rod, 26. Second support, 3. Soil pressing wheel, 31. Annular groove, 32. Wheel frame rod, 33. First support, 41. Diagonal brace, 42. Diagonal brace spring, 43. First adjusting wheel, 44. First inclined plate, 45. First limiting seat, 51. Vertical brace, 52. Vertical brace spring, 53. Second adjusting wheel, 54. Second inclined plate, 55. Second limiting seat, 5. Gate-shaped bracket, 6. U-shaped buckle. Detailed Implementation

[0016] Example 1, see appendix Figure 1 , 3 An auxiliary backfilling elastic pressure corn planting device includes a frame beam 1, a roller seeder 2, and a pressing wheel 3. At least a first support 33 and a second support 26 are arranged side-by-side on the frame beam. A wheel frame rod 32 is hinged to the lower part of the first support 33. The pressing wheel 3 is rotatably connected to the outer end of the wheel frame rod 32, allowing it to roll up and down with the terrain via the wheel frame rod. A first pressure-applying mechanism is provided on the upper part of the wheel frame rod 32 and the first support 33, through which backfilling pressure is applied to the pressing wheel 3. The lower pressure of the soil filling; a U-shaped fork bracket 24 is hinged to the lower part of the second support 26, and the main rod 25 of the U-shaped fork bracket is hinged to the lower part of the first support 33. The roller seeder 2 is rotatably connected between the two rods of the U-shaped fork bracket 24. The roller seeder 2 rolls up and down with the terrain through the U-shaped fork bracket 24. A second pressure applying mechanism is provided between the upper part of the second support 26 and the U-shaped fork bracket 24. The second pressure applying mechanism applies the sowing pressure to the roller seeder 2 to press into the soil.

[0017] The side of the soil compactor 3 is evenly provided with several annular grooves 31, which cover both ends of the soil compactor 3.

[0018] The roller seeder 2 has a main seed box 21 connected to its inlet. The upper end of the main seed box is connected to a secondary seed box 23 via a cylindrical tube 22. The cooperation between the upper and lower seed boxes can reduce the pressure between the seeds and prevent excessive pressure between the seeds, which could lead to poor seed discharge. Both the main seed box 21 and the secondary seed box 23 are made of transparent plastic, which makes it easy to observe the seed quantity and seed discharge status during the sowing process and avoid problems that cannot be detected in time. A portal-shaped bracket 5 is connected between the two sides of the U-shaped fork bracket 24. The portal-shaped bracket 5 supports the secondary seed box 23 from the side, ensuring the stability of the main seed box 21 and the secondary seed box 23 on the frame.

[0019] The working process and principle of the sowing device in this embodiment are as follows: The frame beam 1 moves forward with the tractor. During this process, the roller seeder 2 contacts the ground and rolls. Seeds continuously enter the roller seeder 2 from the seed box to achieve sowing. The roller seeder 2 is installed in the U-shaped fork bracket 24 and can adapt to the ground surface by rolling. The downward pressure of the roller seeder 2 can be adjusted by adjusting the elastic pressure, so that it can adapt to soils of different hardness and avoid the problem of insufficient sowing depth. During the sowing process, the soil pressing wheel 3 connected to the wheel frame rod 32 continuously presses down the soil to assist the soil in backfilling the sowing pit. At the same time, the elastic pressure mechanism provides elastic pressure to the soil pressing wheel 3 to avoid the soil pressing wheel 3 from bouncing and ensure that the surface soil is evenly backfilled after sowing.

[0020] Example 2, see appendix Figure 1-2 4. This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that the first pressure-applying mechanism includes a diagonal brace 41, a diagonal brace spring 42, and a first adjusting wheel 43. The diagonal brace is a long screw. The upper part of the first support 33 is provided with a first inclined plate 44. The diagonal brace 41 passes through the through hole on the first inclined plate 44 and is hinged to the inner end of the lower wheel frame rod 32. The diagonal brace obliquely supports the wheel frame rod and applies downward pressure to the wheel frame rod 32. The lower part of the diagonal brace 41 is provided with a first limit. The seat 45 and the diagonal support spring 42 are sleeved on the diagonal support rod 41 between the first limiting seat 45 and the first inclined plate 44. The vertical support spring 52 applies downward pressure to the diagonal support rod 41, and the diagonal support rod generates elastic downward pressure on the wheel frame rod 32. The first adjusting wheel 43 is threaded to the upper end of the diagonal support rod 41. The adjusting wheel is used to adjust the extension length of the diagonal support rod 41 on the first support 33, thereby adjusting the ground clearance of the soil compaction wheel 3 and the elastic pressure of the spring, so as to adjust the depth of the soil compaction wheel 3 pressing down to backfill the soil.

[0021] The second pressure-applying mechanism includes a vertical support rod 51, a vertical support spring 52, and a second adjusting wheel 53. The vertical support rod is a long screw. A second inclined plate 54 is provided on the upper part of the second support 26. The vertical support rod 51 passes through a through hole in the second inclined plate 54 and is hinged to the inner end of the lower U-shaped fork bracket 24. The vertical support rod 51 vertically supports the U-shaped fork bracket 24, applying downward pressure to the roller seeder 2. A second limiting seat 55 is provided on the lower part of the vertical support rod 51. The vertical support spring 52 is sleeved on the vertical support rod 51 between the second limiting seat 55 and the second inclined plate 54. The vertical spring applies downward pressure to the vertical support rod 51, and the vertical support rod 51 generates elastic downward pressure on the U-shaped fork bracket 24. The second adjusting wheel 53 is threaded to the upper end of the vertical support rod 51. This adjusting wheel is used to adjust the extension length of the vertical support rod 51 on the second support 26, thereby adjusting the height of the roller seeder 2 off the ground and the elastic pressure of the spring, so as to adjust the downward sowing depth of the roller seeder 2. This allows it to adapt to different soil hardness and adjust the elastic downward pressure, avoiding the problem of insufficient sowing depth and ensuring the emergence rate of corn.

Claims

1. A corn planting device with auxiliary backfilling and elastic pressure, characterized in that: The device includes a frame beam, a roller seeder, and a pressing wheel. At least a first support and a second support are arranged side by side on the frame beam. A wheel frame rod is hinged to the lower part of the first support, and the pressing wheel is rotatably connected to the outer end of the wheel frame rod. A first pressure-applying mechanism is provided on the upper part of the wheel frame rod and the first support. A U-shaped fork bracket is hinged to the lower part of the second support. The main body of the U-shaped fork bracket is hinged to the lower part of the first support. The roller seeder is rotatably connected between the two sides of the U-shaped fork bracket. A second pressure-applying mechanism is provided on the upper part of the second support and between the U-shaped fork bracket.

2. The auxiliary backfilling elastic pressure type corn planting device according to claim 1, characterized in that: The first pressure-applying mechanism includes a diagonal brace, a diagonal brace spring, and a first adjusting wheel. The upper part of the first support is provided with a first inclined plate. The diagonal brace passes through a through hole on the first inclined plate and is hinged to the inner end of the lower wheel frame rod. The lower part of the diagonal brace is provided with a first limiting seat. The diagonal brace spring is sleeved on the diagonal brace between the first limiting seat and the first inclined plate. The first adjusting wheel is threadedly connected to the upper end of the diagonal brace.

3. The auxiliary backfilling elastic pressure type corn planting device according to claim 1, characterized in that: The second pressure-applying mechanism includes a vertical support rod, a vertical support spring, and a second adjusting wheel. The upper part of the second support is provided with a second inclined plate. The vertical support rod passes through a through hole on the second inclined plate and is hinged to the inner end of the U-shaped fork bracket below. The lower part of the vertical support rod is provided with a second limiting seat. The vertical support spring is sleeved on the vertical support rod between the second limiting seat and the second inclined plate. The second adjusting wheel is threadedly connected to the upper end of the vertical support rod.

4. The auxiliary backfilling elastic pressure corn planting device according to claim 1, characterized in that: The soil compaction wheel has several annular grooves evenly distributed on its side, which cover both ends of the compaction wheel.

5. The auxiliary backfilling elastic pressure type corn planting device according to claim 1, characterized in that: The roller seeder is connected to a main seed box at its inlet, and a secondary seed box is connected to the upper end of the main seed box via a cylindrical tube. Both the main seed box and the secondary seed box are made of transparent plastic.

6. The auxiliary backfilling elastic pressure corn planting device according to claim 1, characterized in that: A portal-shaped bracket is connected between the two sides of the U-shaped fork bracket, which supports the seed box from the side.

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