Seedling fixed-distance planting machine and use method thereof

Abstract

The invention relates to the technical field of agricultural seedling planting machinery, in particular to a seedling fixed-distance planting machine and a use method thereof.The inner sides of two supporting plates are provided with seed pit fixed-distance structures, the seed pit fixed-distance structures actively adjust the depth of formed seed pits according to soil texture, and each seed pit fixed-distance structure comprises a soil texture detection assembly; the drilling device is provided with a watering structure, the watering structure is used for enhancing soil humidity, a soil texture detection assembly can accurately judge whether soil is soft or hardened before drilling, and the descending depth of the drilling device can be automatically adjusted without manual intervention by combining the characteristics of shear thickening fluid in an empty bin and on-off control of an electromagnet; shallow pits are dug when soil is soft, and seedling rhizomes are prevented from being oxygen-deficient and rotten; deep pits are dug in hardened soil, it is ensured that the root system is inserted into deep soil to draw water and fertilizer, the differentiated requirements of different soft / hardened soil properties for planting depth are perfectly met, the planting suitability and survival rate are remarkably improved, and the operation process is simplified.

Description

Technical Field

[0001] This invention relates to the field of agricultural seedling planting machinery technology, and in particular to a seedling fixed-distance planting machine and its usage method. Background Technology

[0002] The planting machine is used for planting seedlings. A search revealed patent CN219205202U, which proposes "a sowing device suitable for spot sowing," including a fixed base. Support blocks are symmetrically fixedly installed at the lower end of the fixed base, and casters are provided at the lower end of the support blocks. A sowing box is fixedly installed at the upper end of the fixed base. The sowing box contains a seed storage chamber and a sowing chamber, respectively. A second control motor drives a drill bit to drill the seed holes, facilitating subsequent sowing.

[0003] Although the seeding device can adjust the depth of the seeding pit through structures such as cylinders and lifting plates, it relies on external control equipment and manual judgment of soil conditions for operation and adjustment. The operation is cumbersome and the depth is easily mismatched due to human judgment errors. It cannot achieve automatic adjustment of the seeding pit depth according to the looseness or compaction of the soil, and it is difficult to adapt to the different needs of different soil types for planting depth. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing a seedling spacing planting machine and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a seedling spacing planting machine, comprising two support plates, a placement platform, and a planting pipe, wherein the planting pipe is connected to the placement platform, the placement platform is fixed to the top of the support plates, and a seed pit spacing structure is provided on the inner side of the two support plates. The seed pit spacing structure actively adjusts the depth of the seed pits according to the soil quality. The seed pit spacing structure includes a soil quality detection component, and the hole opener is provided with a watering structure for enhancing soil moisture. The seed pit spacing structure includes a rotating connection between the two support plates. The shaft is connected to a rotating shaft. One of the support plates is fixed with a motor, and the output end of the motor is fixedly connected to one end of the rotating shaft. A cam is fixed to the outside of the rotating shaft. A groove is provided on the inner side of the support plate. A pad is slidably connected to the support plate through the groove, and a spring is provided inside the groove. An empty chamber is provided on one side of the pad for storing shear-thickening fluid. A support rod is fixed to the bottom of the support plate. An opening device is slidably connected to the support rod. A vertical rod is fixed to the top of the opening device, and the top of the vertical rod is located inside the empty chamber.

[0006] As a further embodiment of the present invention, the seed pit spacing structure also includes an electromagnet fixed on the other side of the pad, a piston plate is slidably connected inside the empty chamber, an iron plate is fixed to the piston plate by a connecting block, both the electromagnet and the iron plate have through holes, a No. 3 spring is fixed to the piston plate, and one end of the No. 3 spring passes through the through hole and is fixedly connected to the pad.

[0007] As a further embodiment of the present invention, an extension plate is fixed to the top of the hole opener, and a second spring is connected between the support rod and the extension plate.

[0008] As a further embodiment of the present invention, the soil testing component includes a second cam fixed externally to the rotating shaft, a hollow tube slidably connected to the pad in a vertical square, a rectangular plate fixed to the top of the hollow tube, and a fourth spring connected between the rectangular plate and the pad.

[0009] As a further embodiment of the present invention, the soil testing component further includes a testing rod slidably connected inside a hollow tube. The testing rod is connected to the top end of the hollow tube by a No. 5 spring. A top rod is fixed to the top of the inner cavity of the hollow tube. The testing rod is provided with a groove. A push-button switch is installed inside the groove. A cylindrical groove is provided at the top of the groove.

[0010] As a further embodiment of the present invention, the watering structure includes a water trough provided at the top of the inner cavity of the hole opener, a water tank fixed at the bottom of the placement platform, a water pipe connected between the water tank and the water trough, a drain outlet provided at the bottom of the water trough, a hinge installed at the bottom of the water trough, a sealing plate provided at the top of the drain outlet, and half of the hinge blades fixed to the sealing plate.

[0011] As a further embodiment of the present invention, the watering structure also includes a circular shaft that rotates in the middle of the hinge, the circular shaft being fixed to one half of the leaf on the sealing plate, and one end of the circular shaft being located outside the hole opener and fixed with a gear.

[0012] As a further embodiment of the present invention, the watering structure further includes a vertical groove on the back of the hole opener, a soil receiving box slidably connected to the back of the hole opener along the vertical groove, a soil discharge port on the back of the hole opener and above the soil receiving box, a rack that meshes with a gear fixed on the top of the soil receiving box, the interior of the vertical groove being connected to the soil receiving box by a No. 6 spring, and the vertical groove being closed by a folding strip.

[0013] As a further embodiment of the present invention, an elastic plate is fixed to the bottom of the water tank, and the elastic plate cooperates with the iron plate.

[0014] As a further embodiment of the present invention, the method of using the seedling spacing planting machine includes the following steps: Step 1: The motor starts and drives the shaft to rotate. The second cam presses the rectangular plate, driving the hollow tube and the detection rod into the soil. When the soil is soft, the detection rod and the hollow tube move synchronously, and the electromagnet attracts the iron plate. When the soil is compacted, the detection rod stops, the top rod presses the button switch, the electromagnet is de-energized, and the third spring pushes the piston plate to solidify the shear thickening fluid. Step 2: The No. 1 cam presses the pad plate down. When the soil is soft, the liquid fluid does not obstruct the vertical rod, allowing the hole opener to dig shallowly. When the soil is compacted, the solidified fluid causes the vertical rod and the pad plate to descend synchronously, allowing the hole opener to dig deeper. Step 3: Water is supplied from the water tank to the water trough through the water pipe. When the hole is opened, the soil falls into the soil receiving box and moves down. The rack and pinion drive the gear to rotate and open the sealing plate. Then the water is discharged from the drain to moisten the planting hole and soil.

[0015] The seedling spacing planting machine and its usage method proposed in this invention have the following beneficial effects: 1. Existing sowing devices rely on external control equipment and manual judgment of soil conditions to adjust the planting pit depth, which is cumbersome and prone to inappropriate depth matching. This invention achieves automatic adjustment of planting pit depth through a fixed-distance planting pit structure. The soil detection component in this structure can accurately determine whether the soil is loose or compacted before drilling. Combined with the characteristics of the shear-thickening fluid in the empty chamber and the on / off control of the electromagnet, the descent depth of the hole opener can be automatically adjusted without manual intervention. Shallow pits are drilled in loose soil to avoid root rot due to lack of oxygen in the seedling roots; deep pits are drilled in compacted soil to ensure that the roots penetrate deep into the soil to absorb water and fertilizer. This perfectly adapts to the different planting depth requirements of different loose / compacted soil types, significantly improving planting adaptability and survival rate, and simplifying the operation process.

[0016] 2. The watering structure achieves a synergistic effect of watering and water retention. During the hole-opening process, the soil inside the hole opener falls from the discharge port into the receiving box. A mechanical transmission automatically opens the drainage outlet, allowing water from the trough to precisely irrigate the planting pit. This provides suitable humidity for seedling growth and moistens the soil inside the hole opener. The next time the hole is opened, the moistened old soil is pushed out and falls around the planting pit, forming a soil mound. This effectively reduces water evaporation from the planting pit, lowers the hardness of compacted soil, and improves the aeration of the soil around the planting pit, creating favorable conditions for crop root expansion and further ensuring seedling growth and development. Attached Figure Description

[0017] Figure 1 This is an external view of the planting machine proposed in this invention; Figure 2 This is a front view of the planting machine proposed in this invention; Figure 3 The present invention proposes Figure 1 Schematic diagram of a partial structure; Figure 4 The present invention proposes Figure 3Rotate the diagram to show a schematic of the through hole; Figure 5 The present invention proposes Figure 1 A partial view showing a schematic diagram of the empty compartment and piston plate; Figure 6 This is a schematic diagram of the piston plate and iron plate structure proposed in this invention; Figure 7 This is a schematic diagram of the internal structure of the hollow tube proposed in this invention; Figure 8 This is a structural diagram of the hole opener proposed in this invention, showing a schematic diagram of a water tank; Figure 9 This is a schematic diagram of the back structure of the hole opener proposed in this invention; Figure 10 This is a schematic diagram showing the vertical groove after the folded strip on the back of the hole opener proposed in this invention is removed; Figure 11 This is a cross-sectional view of the hole opener proposed in this invention, showing a schematic diagram of the drain outlet; Figure 12 This is a schematic diagram of the structure of the soil receiving box, rack, gear, round shaft, hinge, and sealing plate proposed in this invention.

[0018] In the diagram: 1. Support plate; 2. Placement platform; 4. Rotating shaft; 5. Motor; 6. Cam No. 1; 7. Slide groove; 8. Pad plate; 9. Spring No. 1; 10. Empty chamber; 11. Support rod; 12. Hole opener; 13. Vertical rod; 14. Extension plate; 15. Spring No. 2; 16. Electromagnet; 17. Piston plate; 18. Connecting block; 19. Iron plate; 20. Through hole; 21. Spring No. 3; 22. Cam No. 2; 23. Hollow tube; 24. Rectangular plate; 2 5. No. 4 spring; 26. Detection rod; 27. No. 5 spring; 28. Top rod; 29. ​​Groove; 30. Push button switch; 31. Water trough; 32. Water tank; 33. Water pipe; 34. Drain outlet; 35. Hinge; 36. Sealing plate; 37. Round shaft; 38. Gear; 39. Vertical groove; 40. Soil receiving box; 41. Rack; 42. No. 6 spring; 43. Folding strip; 44. Elastic plate; 45. Planting tube; 46. Cylindrical groove; 47. Soil discharge outlet. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0021] A seedling spacing planting machine includes two support plates 1, a placement platform 2, and a planting tube 45. The planting tube 45 is connected to the placement platform 2, and the placement platform 2 is fixed to the top of the support plates 1. The interior of the placement platform 2 is used to place the seedlings to be planted. After the planting pit is dug, the seedlings in the placement platform 2 are placed into the planting tube 45 and fall into the planting pit.

[0022] It should be noted that loose soil has large pores and strong water retention, making deep planting prone to root rot due to burying the seedling roots and stems, while shallow planting allows the seedlings to obtain oxygen close to the surface. Compacted soil has high density, lacks water and fertilizer in the surface layer, and is difficult to penetrate in the hard soil layer; deep planting allows the roots to penetrate deep into the loose soil to absorb water and fertilizer, meeting their growth needs. In order to achieve different planting depths according to soil type (loose / compacted), this project proposes a fixed spacing structure for planting pits.

[0023] Specifically, the inner sides of the two support plates 1 are provided with a planting pit spacing structure. The planting pit spacing structure actively adjusts the depth of the planting pit according to the soil quality. The planting pit spacing structure includes a rotating shaft 4 that is rotatably connected between the two support plates 1. One of the support plates 1 is fixed with a motor 5. The output end of the motor 5 is fixedly connected to one end of the rotating shaft 4. A cam 6 is fixed to the outside of the rotating shaft 4. A sliding groove 7 is provided on the inner side of the support plate 1. A pad 8 is slidably connected to the support plate 1 through the sliding groove 7. A spring 9 is provided inside the sliding groove 7.

[0024] It can be concluded that when planting, the motor 5 starts and drives the rotating shaft 4 and the first cam 6 to rotate. The rotation of the first cam 6 presses the pad 8, causing it to descend along the slide groove 7 and press the first spring 9. When the first cam 6 leaves the pad 8, the first spring 9 resets and raises the pad 8, thereby realizing the lifting and lowering movement of the pad 8.

[0025] As an example, a cavity 10 is provided on one side of the pad 8 for storing shear-thickening fluid. A support rod 11 is fixed to the bottom of the support plate 1. An opening device 12 is slidably connected to the support rod 11. A vertical rod 13 is fixed to the top of the opening device 12. The top of the vertical rod 13 is located inside the cavity 10. An extension plate 14 is fixed to the top of the opening device 12. A second spring 15 is connected between the support rod 11 and the extension plate 14.

[0026] In addition, the seed pit spacing structure also includes an electromagnet 16 fixed on the other side of the pad 8. A piston plate 17 is slidably connected inside the empty chamber 10. An iron plate 19 is fixed to the piston plate 17 through a connecting block 18. Both the electromagnet 16 and the iron plate 19 have through holes 20. A No. 3 spring 21 is fixed to the piston plate 17, and one end of the No. 3 spring 21 passes through the through hole 20 and is fixedly connected to the pad 8. An elastic plate 44 is fixed to the bottom of the water tank 32. The elastic plate 44 cooperates with the iron plate 19. When the iron plate 19 is reset, it hits the elastic plate 44 to make it vibrate. The vibration of the elastic plate 44 creates a shaking effect, breaking the adsorption force between the soil and the surface of the water tank 32, and preventing the soil and dust scattered during the opening process from adhering to the outer wall of the water tank 32 and causing corrosion on the surface of the water tank 32.

[0027] The next step is that the planting pit spacing structure includes a soil testing component, which includes a second cam 22 fixed externally to the rotating shaft 4, a hollow tube 23 slidably connected to the pad 8 in a vertical square, a rectangular plate 24 fixed to the top of the hollow tube 23, and a fourth spring 25 connected between the rectangular plate 24 and the pad 8.

[0028] Furthermore, the soil testing component also includes a detection rod 26 slidably connected inside a hollow tube 23. The detection rod 26 is connected to the top end of the hollow tube 23 via a No. 5 spring 27. A top rod 28 is fixed to the top of the inner cavity of the hollow tube 23. The detection rod 26 is provided with a groove 29. A push button switch 30 is installed inside the groove 29. A cylindrical groove 46 is provided at the top of the groove 29.

[0029] It should be noted that the push button switch 30 and the electromagnet 16 are connected in series. The push button switch 30 is a self-resetting type, which is set to cut off power when pressed and turn on when released. A self-resetting button with normally closed contacts is selected. Under normal conditions, the contacts are closed and the circuit is kept energized. When the push button switch 30 is pressed, the normally closed contacts open and the circuit is de-energized. This is existing technology in the field of electrical control, and will not be described in detail here.

[0030] The working process of the seed pit spacing structure is as follows: the rotation of shaft 4 will also cause the second cam 22 to rotate, from Figure 3 It can be seen that when the rotating shaft 4 rotates counterclockwise, the second cam 22 will press the rectangular plate 24 first, while the first cam 6 presses the pad 8 at a slower speed than the rectangular plate 24. The purpose of this operation is to make the soil testing component work before the hole opener 12, so as to make it easier to determine whether the soil is loose or compacted before opening the hole.

[0031] The rectangular plate 24, under pressure, causes the hollow tube 23 and the detection rod 26 to penetrate into the soil. When the soil is soft, the resistance exerted on the detection rod 26 is small and cannot overcome the elastic force of the No. 5 spring 27. Therefore, in soft soil, the hollow tube 23 and the detection rod 26 move synchronously without relative displacement. At this time, the top rod 28 inside the hollow tube 23 does not press the button switch 30, and the button switch 30 remains in a normally closed and energized state. The electromagnet 16 connected in series is energized, generating a magnetic force to attract the iron plate 19. Figure 4 As shown, spring 21 is in a compressed energy storage state at this time.

[0032] When the pad 8 in the soft soil descends, it will descend partially first. At this time, the shear-thickening fluid (which is a non-Newtonian fluid) in the empty chamber 10 is not under pressure and is in a liquid state, so it will not obstruct the vertical rod 13.

[0033] At this time, as the pad 8 descends, the top of the empty chamber 10 contacts the top of the vertical rod 13. The pad 8 continues to descend, pressing down on the vertical rod 13 and the hole opener 12, and then the hole opener 12 is opened by descending.

[0034] The depth of the planting pit in this state is: the length of the descent of the pad 8 minus the length between the top of the vertical rod 13 and the top of the cavity of the pad 8, which will result in a shallow planting pit in soft soil.

[0035] When the soil becomes compacted, the resistance to the detection rod 26 penetrating the soil is high, causing the detection rod 26 to stop and be unable to continue downwards. However, the hollow tube 23 continues to move downwards. Therefore, the hollow tube 23 will move outside the detection rod 26. Then, the top rod 28 inside the hollow tube 23 is inserted into the groove 29 of the detection rod 26 through the cylindrical groove 46, and the button switch 30 is pressed to cut off the power. Then, the magnetic force of the electromagnet 16 disappears. After that, the third spring 21 returns to its original position and the piston plate 17 violently impacts the shear thickening fluid in the empty chamber 10. According to the characteristics of the shear thickening fluid, the shear rate exceeds the critical value, and the viscosity increases sharply and instantly changes from a fluid state to a solid state, so that the vertical rod 13 and the pad 8 form a whole.

[0036] Therefore, when the pad 8 descends, it will directly bring down the vertical rod 13 and the hole opener 12. It is no longer necessary for the "the descent of the pad 8 to make the top of the empty chamber 10 contact the top of the vertical rod 13" as described above. As a result, the depth of the hole opener 12 is significantly increased compared to the soft soil, which in turn makes the seed pit deeper.

[0037] In summary, the above operations can achieve "fixed distance" rather than a fixed single depth based on the adaptability to different soil types. The planting pit depth is set to deep when the soil is compacted, and shallow when the soil is loose.

[0038] It needs to be explained that the compressive resistance of the soil compaction to the inserted detection rod 26 is greater than the reset pull of the fifth spring 27. Therefore, the detection rod 26 will be "stuck" by the soil and remain in the insertion position to prevent the fifth spring 27 from resetting the detection rod 26 after insertion. This also prevents the pressure of the top rod 28 on the button switch 30 from disappearing and causing energization. If energization is applied immediately, the strong magnetic force generated by the electromagnet 16 will overcome the resistance of the third spring 21 and re-attract the iron plate 19. This would cause the shear thickening fluid to lose shear pressure and return to a liquid state, resulting in the failure of deep hole drilling under the soil compaction.

[0039] After the hole is drilled, the pad 8 resets, then the second spring 15 resets the hole drill 12, the fourth spring 25 resets the hollow tube 23 and the detection rod 26, and then the compressed fifth spring 27 resets the detection rod 26, causing the pressure of the push rod 28 on the button switch 30 to disappear and energize. The electromagnet 16 then generates a strong magnetic force that overcomes the resistance of the third spring 21 and re-attracts the iron plate 19. The shear-thickening fluid then loses shear pressure and changes from a solid to a liquid state. This resetting process facilitates repeated drilling to different depths.

[0040] Furthermore, the hole opener 12 is provided with a watering structure, which is used to enhance soil moisture.

[0041] Specifically, the watering structure includes a water trough 31 set at the top of the inner cavity of the hole opener 12, a water tank 32 fixed at the bottom of the placement platform 2, a water pipe 33 connecting the water tank 32 and the water trough 31, a drain outlet 34 at the bottom of the water trough 31, a hinge 35 installed at the bottom of the water trough 31, a sealing plate 36 at the top of the drain outlet 34, half of the hinge 35 being fixed to the sealing plate 36, and the watering structure also includes a rotating shaft 37 in the middle of the hinge 35, the shaft 37 being fixed to half of the sealing plate 36, and one end of the shaft 37 being located outside the hole opener 12 and fixed with a gear 38.

[0042] In addition, the watering structure also includes a vertical groove 39 on the back of the hole opener 12. A soil receiving box 40 is slidably connected to the back of the hole opener 12 along the vertical groove 39. A soil discharge port 47 is provided on the back of the hole opener 12 and above the soil receiving box 40. A rack 41 that meshes with a gear 38 is fixed to the top of the soil receiving box 40. The interior of the vertical groove 39 is connected to the soil receiving box 40 by a No. 6 spring 42. The vertical groove 39 is closed by a folding strip 43. The folding strip 43 prevents soil from clogging the vertical groove 39. The folding strip 43 has creases (not shown in the figure) to facilitate lengthening or shortening. The folding strip 43 moves with the movement of the soil receiving box 40.

[0043] It should be noted that the hole opener 12 is fixed with a grid plate below the water tank 31 to prevent the soil inside the hole opener 12 from pressing the sealing plate 36, while allowing water to drain out at the same time; the soil receiving box 40 is located at the top of the hole opener 12 and will not obstruct the hole opening operation.

[0044] The watering structure works as follows: Water in the water tank 32 comes into the water trough 31 through the water pipe 33. When the hole is opened, the soil entering the hole opener 12 will be discharged from the soil outlet 47 and fall onto the soil receiving box 40. After being weighed, the soil receiving box 40 slides down along the vertical groove 39 and compresses the No. 6 spring 42. The soil receiving box 40 descends synchronously with the rack 41, causing the gear 38 and the round shaft 37 to rotate. Then, the round shaft 37 drives half of the hinge 35 and the sealing plate 36 to rotate, opening the drain outlet 34. After that, the water in the water trough 31 falls from the inside of the hole opener 12. Part of the falling water is absorbed by the soil in the hole opener 12, and the other part falls directly into the planting pit to moisten it, which is conducive to the growth of the seedlings.

[0045] Meanwhile, the soil inside the hole opener 12 will also become moist after absorbing water. When the next hole is opened, the newly entered soil will push the moist old soil inside the hole opener 12 out of the soil discharge port 47 and fall onto the edge of the planting pit. The soil enclosure formed by the wet mud can reduce the evaporation of water in the planting pit, which is especially suitable for the water retention needs under compacted soil. In addition, after the wet mud is mixed with the dry soil on the edge of the planting pit, it can reduce the hardness of the compacted layer, improve the aeration of the soil around the planting pit, and facilitate the expansion and growth of crop roots to the surrounding area.

[0046] The method of using a seedling spacing planting machine includes the following steps: Step 1: Motor 5 starts and drives shaft 4 to rotate. Cam 22 presses rectangular plate 24, causing hollow tube 23 and detection rod 26 to be driven into the soil. When the soil is soft, detection rod 26 and hollow tube 23 move synchronously, and electromagnet 16 attracts iron plate 19. When the soil is compacted, detection rod 26 stops, push rod 28 presses button switch 30, electromagnet 16 is de-energized, and spring 21 pushes piston plate 17 to solidify shear thickening fluid. Step 2: Cam 6 presses the pad 8 down. When the soil is soft, the liquid fluid does not obstruct the vertical rod 13, allowing the hole opener 12 to dig shallowly. When the soil is compacted, the solidified fluid causes the vertical rod 13 and the pad 8 to descend synchronously, allowing the hole opener 12 to dig deeply. Step 3: Water tank 32 supplies water to water trough 31 through water pipe 33. When the hole is opened, soil falls into soil receiving box 40 and moves down. The rack 41 drives gear 38 to rotate and open sealing plate 36. Then water is discharged from drain 34 to moisten the planting pit and soil.

[0047] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A seedling spacing planting machine, characterized in that: The device includes two support plates (1), a placement platform (2), and a planting tube (45). The planting tube (45) is connected to the placement platform (2), which is fixed to the top of the support plate (1). A planting pit spacing structure is provided on the inner side of the two support plates (1). The planting pit spacing structure actively adjusts the depth of the planting pit according to the soil quality. The planting pit spacing structure includes a soil quality detection component. The hole opener (12) is equipped with a watering structure to enhance soil moisture. The planting pit spacing structure includes a rotating shaft (4) that is rotatably connected between the two support plates (1). A motor (5) is fixed on one of the support plates (1). The output end of the motor (5) is connected to the rotating shaft. One end of the shaft (4) is fixedly connected, and a cam (6) is fixed to the outside of the shaft (4). A groove (7) is provided on the inner side of the support plate (1). A pad (8) is slidably connected to the support plate (1) through the groove (7). A spring (9) is provided inside the groove (7). An empty chamber (10) is provided on one side of the pad (8). The empty chamber (10) is used to store shear thickening fluid. A support rod (11) is fixed to the bottom of the support plate (1). An opening device (12) is slidably connected to the support rod (11). A vertical rod (13) is fixed to the top of the opening device (12). The top of the vertical rod (13) is located inside the empty chamber (10).

2. The seedling spacing planting machine according to claim 1, characterized in that, The seed pit spacing structure also includes an electromagnet (16) fixed on the other side of the pad (8). A piston plate (17) is slidably connected inside the empty chamber (10). An iron plate (19) is fixed to the piston plate (17) through a connecting block (18). Both the electromagnet (16) and the iron plate (19) have through holes (20). A third spring (21) is fixed to the piston plate (17), and one end of the third spring (21) passes through the through hole (20) and is fixedly connected to the pad (8).

3. The seedling spacing planting machine according to claim 1, characterized in that, An extension plate (14) is fixed to the top of the hole opener (12), and a second spring (15) is connected between the support rod (11) and the extension plate (14).

4. A seedling spacing planting machine according to claim 1, characterized in that, The soil testing component includes a second cam (22) fixed to the outside of the rotating shaft (4), a hollow tube (23) slidably connected to the pad (8) in the vertical direction, a rectangular plate (24) fixed to the top of the hollow tube (23), and a fourth spring (25) connected between the rectangular plate (24) and the pad (8).

5. A seedling spacing planting machine according to claim 4, characterized in that, The soil testing assembly also includes a detection rod (26) slidably connected inside a hollow tube (23). The detection rod (26) is connected to the top of the hollow tube (23) by a No. 5 spring (27). A top rod (28) is fixed to the top of the inner cavity of the hollow tube (23). The detection rod (26) is provided with a groove (29). A push button switch (30) is installed inside the groove (29). A cylindrical groove (46) is provided on the top of the groove (29).

6. A seedling spacing planting machine according to claim 1, characterized in that, The watering structure includes a water tank (31) set at the top of the inner cavity of the hole opener (12), a water tank (32) fixed at the bottom of the placement platform (2), a water pipe (33) connecting the water tank (32) and the water tank (31), a drain outlet (34) set at the bottom of the water tank (31), a hinge (35) installed at the bottom of the water tank (31), a sealing plate (36) set at the top of the drain outlet (34), and half of the hinge (35) fixed to the sealing plate (36).

7. A seedling spacing planting machine according to claim 6, characterized in that, The watering structure also includes a circular shaft (37) that rotates in the middle of the hinge (35). The circular shaft (37) is fixed to one half of the leaf on the sealing plate (36). One end of the circular shaft (37) is located outside the hole opener (12) and is fixed with a gear (38).

8. A seedling spacing planting machine according to claim 6, characterized in that, The watering structure also includes a vertical groove (39) on the back of the hole opener (12). A soil receiving box (40) is slidably connected to the back of the hole opener (12) along the vertical groove (39). A soil discharge port (47) is provided on the back of the hole opener (12) and above the soil receiving box (40). A rack (41) that meshes with a gear (38) is fixed to the top of the soil receiving box (40). The interior of the vertical groove (39) is connected to the soil receiving box (40) by a No. 6 spring (42). The vertical groove (39) is closed by a folding strip (43).

9. A seedling spacing planting machine according to claim 6, characterized in that, The bottom of the water tank (32) is fixed with an elastic plate (44), which cooperates with the iron plate (19).

10. A method of using a seedling spacing planting machine, specifically the seedling spacing planting machine according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1: The motor (5) starts and drives the rotating shaft (4) to rotate. The second cam (22) presses the rectangular plate (24) to insert the hollow tube (23) and the detection rod (26) into the soil. When the soil is soft, the detection rod (26) and the hollow tube (23) move synchronously and the electromagnet (16) attracts the iron plate (19). When the soil is compacted, the detection rod (26) stops, the top rod (28) presses the button switch (30), the electromagnet (16) is de-energized, and the third spring (21) pushes the piston plate (17) to solidify the shear thickening fluid. Step 2: Cam 1 (6) presses the pad (8) down. When the soil is soft, the liquid fluid does not obstruct the vertical rod (13), so that the hole opener (12) digs shallowly. When the soil is hardened, the solidified fluid causes the vertical rod (13) and the pad (8) to descend synchronously, so that the hole opener (12) digs deeply. Step 3: Water tank (32) supplies water to water tank (31) through water pipe (33). When the hole is opened, the soil falls into the soil receiving box (40) and moves down. The rack (41) drives the gear (38) to rotate and open the sealing plate (36). Then the water is discharged from the drain (34) to moisten the planting pit and soil.

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