Sweet potato seedling cuttage planting device

Abstract

The invention discloses a sweet potato seedling cuttage planting device which comprises a frame body connected to a vehicle and walking wheels rotationally connected to the frame body, a first power transmission mechanism is connected with a seedling feeding basket through a connecting arm frame, and a seedling temporary storage cavity is formed by the seedling feeding basket, a closed brake box and the interior of a brake box mouth. The temporary storage cavity is internally provided with a material blocking assembly which enables seedlings to be in an inclined state after the seedlings fall into the temporary storage cavity, and the material blocking assembly comprises a blocking piece, an upper blocking rod and a lower blocking rod which are sequentially and obliquely arranged in the temporary storage cavity from left upper to right lower. The invention relates to the technical field of seedling sowing, and by means of the material blocking assembly, seedlings are forced to keep an inclined posture that roots are located below and blades are located above before planting. After planting, rhizome parts of the seedlings are obliquely buried in soil, and leaf parts are naturally exposed on the surface of the soil or only covered by thin soil. The stems which are obliquely buried in the soil can still form a plurality of effective rooting points and sweet potato growing points in the soil.

Description

Technical Field

[0001] This invention relates to the field of seedling sowing technology, specifically to a device for inserting sweet potato seedling cuttings into soil for planting. Background Technology

[0002] As an important food and cash crop, the yield and quality of sweet potatoes are directly affected by the planting method. In traditional agricultural production, sweet potato planting mainly relies on manual labor, which is not only labor-intensive and inefficient, but also difficult to standardize key parameters such as planting depth, angle, and plant spacing, which seriously restricts the large-scale and industrialized development of sweet potato planting.

[0003] Existing technologies have seen the emergence of various semi-automatic and even fully automatic planting machines, which generally integrate basic functions such as ditching, seedling placement, and soil covering, thus freeing up labor and improving work efficiency to a certain extent. However, most of these general-purpose planting devices only focus on planting the roots of seedlings into the soil to meet the general needs of upright plant growth, but fail to fully consider the unique planting requirements of sweet potato seedlings.

[0004] Specifically, high-yield sweet potato cultivation requires planting the seedlings horizontally or at a slight angle in the soil, ensuring that the longer stems of the sweet potato have maximum contact area with the soil. This allows adventitious roots to grow from multiple nodes on the stem, eventually forming more tubers, which are the growth points of the sweet potato. This is the foundation for achieving high yields.

[0005] Therefore, existing general-purpose planting machinery cannot achieve this "flat planting" because its design concept is incompatible with the special agronomic requirements of sweet potatoes. If used directly, it would cause the seedlings to stand upright in the soil, greatly reducing the contact area between the stem and the soil, ultimately seriously affecting the yield and economic benefits of sweet potatoes. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a sweet potato seedling cutting insertion and planting device, which solves the problem that existing planting equipment cannot be adapted to sweet potato seedling planting.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a sweet potato seedling cutting insertion and planting device, comprising a frame connected to a vehicle and rotatably connected to the frame. Side mounting plates are provided on both sides of the frame. A first power transmission mechanism and a second power transmission mechanism are respectively provided on the inner and outer sides of the side mounting plates. The first power transmission mechanism is connected to a seedling feeding basket via a connecting arm. A gate box that can be interlocked with each other is hinged below the seedling feeding basket. The two gate boxes are connected to the second power transmission mechanism via a gate cable. The second power transmission mechanism drives the gate cable to extend and retract, causing the two gate boxes to open and close. The bottom of the two gate boxes is fixed with gate box nozzles that can be interlocked together, and the bottom of the two gate box nozzles is pointed after they are closed; The seedling feeding basket, the closed gate box, and the inside of the gate box mouth form a temporary storage cavity for seedlings. The temporary storage cavity is equipped with a material blocking assembly that keeps the seedlings in an inclined state after they fall in. The material blocking assembly includes a baffle plate, an upper baffle bar, and a lower baffle bar that are inclinedly arranged from the upper left to the lower right in the temporary storage cavity. The seedling feeding basket has an outer cylinder on one side for inserting one end of the connecting arm, and the baffle is fixed to the end of the connecting arm that is inserted into the outer cylinder; There are two upper stop bars, which are fixed to the inside of the gate box on both sides, and the ends of the two upper stop bars are staggered. There are two lower stop rods, which are fixed to the inner wall of the gate mouth opposite to each other; each lower stop rod includes a smooth rod with staggered ends, and the root of the smooth rod is connected to the gate mouth through an elastic element.

[0008] Preferably, each of the gate valves has a soil-splitting plate on its sidewall. The soil-splitting plate includes a plate body with a soil-splitting end, and a transverse through-hole is provided on the plate body. An air jet nozzle is provided in the through-hole.

[0009] Preferably, the opening is provided with a sloping wall on one side of the soil dividing end, and the gas ejected from the jet nozzle is diverted by the sloping wall, and the diverted gas is blown out along both sides of the soil dividing end.

[0010] Preferably, the inclined wall slopes inward from top to bottom, such that the slope direction of the inclined wall faces downward towards the soil dividing end; the inclined wall forms a channel for airflow to exit downward to the soil dividing end.

[0011] Preferably, the side of the sheet away from the soil dividing end is a root fixed to the side wall of the gate nozzle, and the two ends of the root extend toward the soil dividing end to form an upper edge and a lower edge, the cross-sectional dimensions of the upper edge and the lower edge gradually decrease from the root to the soil dividing end.

[0012] Preferably, the tops of the two gate boxes are hinged to a top plate fixed to the seedling basket, and the front and rear ends of the two gate boxes are connected by a first spring; each of the front ends of the two gate boxes is fixed with a wing, and the output end of the gate line is connected to the wing.

[0013] Preferably, the first power transmission mechanism includes a driving wheel, a first driven wheel, and a second driven wheel that are rotatably connected to and chained together on the side mounting plate; a first swing arm is fixed to the main shaft end of the first driven wheel, and a push arm beam is rotatably connected to one end of the first swing arm, the push arm beam being connected to the seedling feeding basket; a second swing arm is fixed to the main shaft end of the second driven wheel, a pressure arm beam is rotatably connected to one end of the second swing arm, and the other end of the pressure arm beam is hinged to the push arm beam.

[0014] Preferably, the second power transmission mechanism includes a cam and a third swing arm rotatably connected to the side mounting plate, wherein the cam is connected to a second driven wheel via a main shaft; a first roller is rotatably connected to the front end of the third swing arm, and the first roller contacts the cam; the brake cable is connected to the bottom of the third swing arm.

[0015] Preferably, each of the seedling feeding baskets is provided with a soil-pressing component at its rear, the soil-pressing component comprising: The connecting arm has one end fixed to the seedling feeding basket and the other end rotatably connected to a second roller. The substrate is fixed to the frame. The fourth swing arm is hinged to the base plate at its top end, connected to the base plate in the middle by a second spring, and rotatably connected to a soil pressing roller at its bottom end; a groove is opened on the front side of the fourth swing arm, and the second roller extends into the groove.

[0016] Preferably, the top of the frame is fixedly equipped with a temporary storage platform and a work platform at different heights. The temporary storage platform and the work platform are connected by an inclined sliding plate. The work platform is equipped with a seedling lowering pipe, which is located directly above the seedling feeding basket.

[0017] The beneficial effects of this invention are as follows: By using the sweet potato seedling cutting insertion and planting device provided by this invention, compared with the prior art, a material-blocking assembly consisting of baffles, an upper baffle, and a lower baffle is set in the temporary storage cavity of the seedling delivery basket, forcing the seedlings to maintain an inclined posture with the roots at the bottom and the leaves at the top before planting. After planting, the rootstock of the seedling is inclinedly buried in the soil, while the leaves are naturally exposed on the soil surface or only covered with a thin layer of soil. The inclined stem can form multiple effective rooting points and sweet potato growth points in the soil, making the mechanized planting of sweet potato seedlings more scientific and reasonable, and ensuring production yield.

[0018] The soil-splitting blades installed on the sidewalls of the gate opening can insert into and separate the compressed soil on both sides as the gate opening forms the planting trough, performing initial physical loosening. Furthermore, the high-pressure airflow, after being ejected through the jet nozzle and diverted by the inclined wall, can be directed to the deeper soil below the soil-splitting blades for secondary pneumatic loosening. This dual "physical + pneumatic" loosening method solves the problem of soil compaction on both sides during the troughing process, greatly improving the aeration and looseness of the soil on both sides of the planting trough, creating an ideal soil environment for sweet potato root growth and tuber enlargement.

[0019] Through the coordination of the first and second power transmission mechanisms, the forward motion of the vehicle is transformed into a series of linked actions, such as the raising and lowering of the seedling basket, the opening and closing of the gate box, the pushing of the baffle plate, and the raising and lowering of the soil pressing roller. This ensures the synchronization of steps such as seedling receiving, planting, trenching, loosening the soil, covering the soil, and compaction, significantly improving the efficiency and standardization of planting operations. Attached Figure Description

[0020] Figure 1 This is an isometric view of the present invention; Figure 2 This is an isometric view of the frame of the present invention; Figure 3 This is a schematic diagram of the connection structure between the first power transmission mechanism and the connecting arm of the present invention; Figure 4 This is an isometric view of the first perspective of the seedling delivery basket connection of the present invention; Figure 5 This is a second-angle isometric view of the seedling delivery basket connection of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a schematic diagram showing the distribution of the material-blocking assembly within the temporary storage cavity of the present invention; Figure 8 For the present invention Figure 7 Sectional view along line AA; Figure 9 This is a schematic diagram of the gate valve of the present invention in the closed state below the gate box; Figure 10 This is a schematic diagram of the gate valve of the present invention in the open and closed state below the gate box; Figure 11 This is an isometric view of the soil compaction component of the present invention.

[0021] Explanation of the reference numerals in the figure: 1. Frame, 2. Temporary storage platform, 3. Workbench, 4. Seedling lowering pipe, 5. Side assembly plate, 6. Drive wheel, 7. First driven wheel, 8. Second driven wheel, 9. First swing arm, 10. Push arm beam, 11. Second swing arm, 12. Press arm beam, 13. Seedling feeding basket, 14. Cam, 15. First roller, 16. Third swing arm, 17. Gate cable, 18. Soil pressing roller, 19. Top plate, 20. Gate box, 21. First spring, 22. Gate box nozzle, 23. Crack 231. Soil piece, 232. Root, 233. Upper edge, 234. Lower edge, 235. Soil dividing end, 236. Opening, 237. Air nozzle, 238. Sloping wall, 24. Channel, 25. Wing lug, 26. Outer cylinder, 27. Baffle, 28. Upper stop bar, 29. Lower stop bar, 281. Smooth rod, 282. Elastic element, 29. Connecting arm, 30. Second roller, 31. Second spring, 32. Fourth swing arm, 33. Slide groove, 34. Base plate. Detailed Implementation

[0022] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] 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. Various changes can be made to the implementation schemes as long as the effects of the present invention can be achieved.

[0024] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0025] like Figures 1 to 11 As shown in the embodiment of this application, a sweet potato seedling cutting insertion and planting device is proposed, including a frame 1 connected to a vehicle and wheels rotatably connected to the frame 1. A temporary storage platform 2 for placing seedlings and a work platform 3 for separating seedlings into individual plants are fixedly installed at different heights on the top of the frame 1. The temporary storage platform 2 and the work platform 3 are connected by an inclined sliding plate. The sliding plate smoothly transitions between the temporary storage platform 2 and the work platform 3. The sliding plate allows the operator to conveniently transfer bundles of seedlings from the temporary storage platform 2 to the work platform 3. A seedling lowering pipe 4 is provided on the work platform 3 for putting seedlings into the seedling lowering pipe 4 and letting them fall downwards.

[0026] Furthermore, side mounting plates 5 are provided on both sides of the frame 1. A first power transmission mechanism and a second power transmission mechanism are respectively provided on the inner and outer sides of the side mounting plates 5. The first power transmission mechanism is driven by the walking wheels, and the second power transmission mechanism is driven by the first power transmission mechanism. In addition, the first power transmission mechanism is connected to the seedling feeding basket 13 through the connecting arm, and a gate box 20 that can be interlocked with the seedling feeding basket 13 is hinged below it.

[0027] It should be noted that the seedling feeding pipe 4 is located directly above the seedling delivery basket 13, so that the falling seedlings can fall into the seedling delivery basket 13.

[0028] In this embodiment, the first power transmission mechanism includes a driving wheel 6, a first driven wheel 7, and a second driven wheel 8, which are rotatably connected to the side mounting plate 5 and chained together. The driving wheel 6 is connected to the main shaft of the traveling wheel via a chain, causing the traveling wheel to drive the driving wheel 6 to rotate during rolling. Furthermore, since the driving wheel 6, the first driven wheel 7, and the second driven wheel 8 are connected by a chain, the first driven wheel 7 and the second driven wheel 8 are driven by the driving wheel 6 to rotate synchronously. Further still, a first swing arm 9 is fixed to the main shaft end of the first driven wheel 7. One end of the first swing arm 9 is rotatably connected to a push arm beam 10, and the other end is provided with a counterweight. The push arm beam 10 is connected to the seedling feeding basket 13. A second swing arm 11 is fixed to the main shaft end of the second driven wheel 8. One end of the second swing arm 11 is rotatably connected to a pressure arm beam 12, and the other end of the pressure arm beam 12 is hinged to the push arm beam 10.

[0029] In one working mode, the traveling wheel drives the driving wheel 6 to rotate during its rolling motion. The first driven wheel 7 and the second driven wheel 8 are driven by the driving wheel 6 to rotate synchronously. When the first driven wheel 7 rotates, it drives the first swing arm 9 to rotate. The rotating first swing arm 9 drives the push arm beam 10 and the seedling delivery basket 13 to move back and forth. When the second driven wheel 8 rotates, it drives the second swing arm 11 to rotate. The rotating second swing arm 11 drives the pressure arm beam 12 to move obliquely up and down. When the push arm beam 10 is pushed to the front end, the pressure arm beam 12 is in a downward pressure state. The downward pressure of the pressure arm beam 12 inserts the seedling delivery basket 13 at the front end of the push arm beam 10 into the soil. When the push arm beam 10 is pulled back to the rear end, the pressure arm beam 12 is in an upward lifting state. At this time, the seedling delivery basket 13 rises and approaches the seedling tube 4, accurately catching the seedlings that fall from the seedling tube 4. The above process is repeated to realize the seedling catching and planting process.

[0030] In one embodiment, two gate boxes 20 are fixed at their bottoms with gate openings 22 that can interlock with each other, and the bottoms of the two gate openings 22 are pointed when closed. It should be noted that, in the side view projection, both the gate box 20 and the gate opening 22 are rectangular. When the seedling basket 13 descends and approaches the ground, the pointed gate opening 22 can be inserted into the ground more conveniently, facilitating the construction work.

[0031] Furthermore, the two gate boxes 20 are connected to a second power transmission mechanism via gate lines 17; the second power transmission mechanism drives the gate lines 17 to extend and retract, causing the two gate boxes 20 to open and close. Specifically, the tops of the two gate boxes 20 are hinged to a top plate 19 fixed to the seedling basket 13, and the front and rear ends of the two gate boxes 20 are connected by a first spring 21; each of the front tops of the two gate boxes 20 has a winglet 24 fixed thereon, and the output end of the gate line 17 is connected to the winglet 24. In practice, when the gate line 17 retracts, it pulls the winglet 24, causing the gate box 20 to rotate outward around the hinged end with the top plate 19, causing the two gate boxes 20 to open the gate opening 22 outward, forming a strip-shaped groove in the soil for planting sweet potato seedlings.

[0032] It should be noted that the second power transmission mechanism includes a cam 14 and a third swing arm 16 rotatably connected to the side mounting plate 5. The cam 14 is connected to the second driven wheel 8 via a main shaft, causing the cam 14 to rotate synchronously when the second driven wheel 8 rotates. A first roller 15 is rotatably connected to the front end of the third swing arm 16, and the first roller 15 contacts the cam 14. A brake line 17 is connected to the bottom of the third swing arm 16. When the cam 14 rotates, the rotating surface of the cam 14 repeatedly contacts the first roller 15, pushing the third swing arm 16 to swing back and forth, achieving the purpose of repeatedly stretching the brake line 17. Furthermore, since the cam 14 is driven to rotate by the second driven wheel 8, the reciprocating swing frequency of the third swing arm 16 can be consistent with the frequency of the seedling feeding basket 13 descending to feed seedlings, ensuring that the brake line 17 can open the brake line nozzle 22 every time the seedling feeding basket 13 descends to feed seedlings.

[0033] In this embodiment, a soil-splitting plate 23 is provided on the side wall of each gate valve 22. The soil-splitting plate 23 includes a plate body with a soil-splitting end 234. An opening 235 is transversely penetrating the plate body. An air jet nozzle 236 is provided in the opening 235. An inclined wall 237 is provided on one side of the opening 235 located at the soil-splitting end 234. The gas ejected from the air jet nozzle 236 is diverted by the inclined wall 237, and the diverted gas is blown out along both sides of the soil-splitting end 234. It should be noted that an air pump is provided on the frame 1, and the air pump is connected to the air jet nozzle 236 through a connecting pipe.

[0034] When the gate valve 22 is inserted into the soil and opens outward to form a strip trough for planting sweet potato seedlings, the soil in the strip trough is expanded and compressed to both sides. At this time, the soil-splitting plate 23 is inserted into the soil on both sides to loosen the bottom outer side of the compressed soil on both sides. At the same time, the jet nozzle 236 on the plate sprays high-pressure gas to the loosened part, and the high-pressure gas after being diverted is blown into the soil side after being loosened by the plate for further secondary loosening.

[0035] The side of the sheet away from the dividing end 234 is the root 231 fixed to the side wall of the gate mouth 22. The two ends of the root 231 extend toward the dividing end 234 to form an upper edge 232 and a lower edge 233. The cross-sectional dimensions of the upper edge 232 and the lower edge 233 gradually decrease from the root 231 to the dividing end 234, so that the dividing end 234 forms a pointed tip, which is more conducive to the dividing end 234 splitting the soil.

[0036] The inclined wall 237 slopes inward from top to bottom, with its inclination direction facing downwards from the dividing end 234. A channel 238 for airflow is formed between the inclined wall 237 and the dividing end 234. The inwardly inclined wall design of the inclined wall 237 allows the diverted high-pressure gas to smoothly enter the channel 238 and be directed outwards, causing the gas to be ejected deep into the soil below the dividing end 234.

[0037] Furthermore, in this embodiment, a temporary storage chamber for the seedlings is formed inside the seedling delivery basket 13, the closed gate box 20, and the gate box nozzle 22. A material-blocking component is installed inside the temporary storage chamber. This material-blocking component design allows the sweet potato seedlings to be in an inclined state when entering the temporary storage chamber. During planting, the gate box nozzle 22 and the soil-cracking plate 23 detach from the soil strip groove, causing the sand on the sidewall of the soil strip groove to slide down. During this sliding process, the bottom (root section) of the inclined sweet potato seedling falls to the bottom of the soil strip groove, while the top (leaf section) of the sweet potato seedling is supported by the sliding sand and remains above the root section. This ensures that the sweet potato seedling is in an inclined state in the soil strip groove, ensuring that the leaves are above the soil after subsequent burial, and that the entire root section is obliquely buried in the soil, allowing the sweet potato seedling's root portion to form multiple rooting points in the soil. To achieve the above objectives, the material-blocking assembly in this embodiment includes a baffle plate 26, an upper baffle rod 27, and a lower baffle rod 28, which are sequentially inclined from the upper left to the lower right within the temporary storage cavity. The baffle plate 26 is used to receive the leaf portion of the sweet potato seedling, the upper baffle rod 27 is used to receive the stem portion of the sweet potato seedling, and the lower baffle rod 28 is used to receive the root portion of the sweet potato seedling.

[0038] Specifically, one side of the seedling delivery basket 13 is provided with an outer cylinder 25 into which one end of the connecting arm can be inserted. A baffle 26 is fixed to the end of the connecting arm that is inserted into the outer cylinder 25. When the pusher beam 10 retracts, the front end of the baffle 26 is in the temporary storage cavity to receive the leaves of the sweet potato seedlings. When the pusher beam 10 pushes forward, the baffle 26 at its end extends into the temporary storage cavity, pushing the leaves of the sweet potato seedlings upward, increasing the height of the leaves, and thus increasing the time for the leaves to fall. This allows time for the sand in the soil trough to slide down, increasing the amount of sand sliding down, so that the leaves fall higher into the soil trough, preventing the leaves from being buried.

[0039] Furthermore, there are two upper stop bars 27, fixed opposite to each other on both sides inside the gate box 20, with the ends of the two upper stop bars 27 staggered. Further still, there are two lower stop bars 28, fixed opposite to each other on the inner wall of the gate box nozzle 22; the lower stop bars 28 include staggered ends of smooth rods 281, the roots of which are connected to the gate box nozzle 22 via elastic elements 282, preferably springs. When the sweet potato seedlings fall into the temporary storage chamber, the roots of the seedlings contact the smooth rods 721 connected to the elastic elements 282. The vibration force during equipment operation causes the smooth rods 721 to be in a continuous shaking state via the elastic elements 282. The shaking of the smooth rods 721 causes the sweet potato seedlings to vibrate continuously, forcing the seedlings to move to a predetermined position to contact the upper stop bars 27 and the baffle plate 26, causing the seedlings to tilt. Figure 10As shown, when the gate box 20 and the gate box nozzle 22 are opened and closed, the upper stop bar 27 and the lower stop bar 28 are in an inclined state and separated, forming a temporary storage cavity where the sweet potato seedlings slip.

[0040] In this embodiment, a soil-pressing assembly is provided on the rear side of each seedling feeding basket 13 for covering and pressing the soil strip grooves after the sweet potato seedlings have been placed. Specifically, the soil-pressing assembly includes a connecting arm 29, a base plate 34, and a fourth swing arm 32. One end of the connecting arm 29 is fixed to the seedling feeding basket 13, and the other end is rotatably connected to a second roller 30; the base plate 34 is fixed to the frame 1; the top end of the fourth swing arm 32 is hinged to the base plate 34, the middle part is connected to the base plate 34 through a second spring 31, and the bottom end is rotatably connected to a soil-pressing roller 18; a groove 33 is opened on the front side of the fourth swing arm 32, and the second roller 30 extends into the groove 33.

[0041] During implementation, as the seedling delivery basket 13 descends, the connecting arm 29 is simultaneously pressed down, and the second roller 30 rolls within the chute 33, pressing the fourth swing arm 32 to swing, causing the pressing roller 18 to contact the soil surface and close the strip groove with soil. It should be noted that the axial length of the pressing roller 18 is greater than the width of the gate box 20 but less than the maximum opening and closing distance of the gate box nozzle 22. This ensures that the pressing roller 18 presses down on the planted seedlings but does not act on the areas on both sides of the soil loosened by the cracked soil pieces 23. This ensures both pressing down on the seedlings and prevents the loosened soil from being compacted.

[0042] In one detailed embodiment, the planting device operates as follows: S1: The vehicle moves forward, causing the traveling wheels mounted on the frame 1 to roll. The main shaft of the traveling wheels drives the drive wheel 6 of the first power transmission mechanism to rotate via a chain. The drive wheel 6 drives the first driven wheel 7 and the second driven wheel 8 to rotate synchronously via a chain. Sweet potato seedlings are manually placed into the seedling tube 4, so that the sweet potato seedlings fall into the seedling basket 13. S2: The first driven wheel 7 drives the first swing arm 9 to rotate, pulling the push arm beam 10 and the connected seedling basket 13 backward (upward). At the same time, the second driven wheel 8 drives the second swing arm 11 to rotate, lifting the pressure arm beam 12 upward. The seedling basket 13 is lifted to its highest position, with its top opening aligned with the seedling lowering pipe 4 of the worktable 3. The operator separates the seedlings into individual plants on the worktable 3 and puts them into the seedling lowering pipe 4. The seedlings fall vertically into the temporary storage cavity formed by the seedling basket 13 and the gate box 20 and gate box nozzle 22 below it. After the seedlings fall into the temporary storage chamber, they come into contact with the lower stop bar 28, the upper stop bar 27, and the baffle plate 26. The vibration of the equipment during operation causes the lower stop bar 28 to shake continuously, so that the seedlings overlap the lower stop bar 28, the upper stop bar 27, and the baffle plate 26, maintaining an inclined posture with the roots at the bottom and the leaves at the top in the temporary storage chamber.

[0043] S3: As the first driven wheel 7 and the second driven wheel 8 continue to rotate, the first swing arm 9 pushes the push arm beam 10 forward (downward), while the second swing arm 11 pulls the pressure arm beam 12 diagonally downward. The pressure arm beam 12 applies a strong downward pressure to the push arm beam 10, inserting the entire seedling basket 13 and its lower closed gate box nozzle 22 into the soil. During this process, the second driven wheel 8 drives the cam 14 to rotate, and the profile of the cam 14 pushes the roller at the front end of the third swing arm 16, causing the third swing arm 16 to swing, thereby stretching the gate line 17. The gate line 17 pulls the wing ears 24 on the top of the gate box 20, causing the two gate boxes 20 to open outward with the top plate 19 as the hinge point, forming a strip-shaped planting groove in the soil. At the same time as the groove is opened, the soil-splitting plate 23 fixed to the side wall of the gate box nozzle 22 is inserted into the compressed soil on both sides of the groove for preliminary physical loosening. High-pressure gas is ejected from the nozzle 236, and after being diverted by the inclined wall 237, it is directed through the channel 238 to the depths of the soil below the cracked soil plate 23 for secondary aerodynamic loosening of the soil, creating a loose environment for the subsequent growth of sweet potato roots. S4: When the gate box 20 and gate box nozzle 22 open, the upper stop bar 27 and lower stop bar 28 supporting the seedlings separate and tilt. The seedlings, losing support, slide down under gravity, their roots first landing at the bottom of the strip groove in their pre-adjusted tilted posture. As the mechanical cycle enters the next stage, the push arm beam 10 begins to pull back, and the seedling delivery basket 13 is lifted upwards as a whole. During this process, the baffle plate 26 fixed to the end of the connecting arm extends into the temporary storage chamber, pushing the seedling leaves upwards, ensuring an upward thrust as they detach from the seedling delivery basket, guaranteeing the leaves are higher than the roots. After the seedling delivery basket 13 is completely detached from the soil, the soil on both sides slides towards the center under gravity, naturally covering the roots of the seedlings. Due to the higher position of the leaves, most leaves are exposed on the soil surface or only covered by a thin layer of soil. S5: When the seedling basket 13 descends and inserts into the soil, the connecting arm 29 fixed to it also presses down synchronously. The second roller 30 at the end of the connecting arm 29 rolls in the groove 33 of the fourth swing arm 32, forcing the fourth swing arm 32 to swing down and press against the soil surface where the seedlings have just been planted. As the vehicle moves forward, the soil pressing roller 18 rolls on the soil, compacting and sealing the soil that has slipped down. Because the width of the soil pressing roller 18 is greater than that of the gate box 20 but less than the maximum opening and closing width of the gate box nozzle 22, the soil pressing roller 18 only compacts the soil directly above the seedlings, and does not compact the areas on both sides that have been loosened by the cracked soil pieces 23 and the air, thus protecting the loose soil layer prepared for the roots.

[0044] As the vehicle continues to move forward, the first driven wheel 7 drives the first swing arm 9 to continue rotating. The first swing arm 9 drives the push arm beam 10 to reset, and the second swing arm 11 drives the pressure arm beam 12 to reset, so that the seedling delivery basket 13 is once again positioned above the lower seedling tube 4. At this time, the pushing force of the second spring 31 causes the fourth swing arm 32 to drive the soil pressing roller 18 to rise. As the vehicle continues to move forward, all the above steps are repeated to plant the seedlings.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for planting sweet potato seedlings by inserting cuttings into soil, characterized in that: The utility model provides a kind of rice seedling transplanting vehicle, including the frame body connected on vehicle and the walking wheel rotationally connected in the frame body, the frame body both sides are provided with side assembly plate, the first power transmission mechanism and the second power transmission mechanism are respectively arranged in the inside and outside of side assembly plate, the first power transmission mechanism is connected with seedling basket by connecting arm frame, the seedling basket below is hinged with brake box that can be mutually buckled together, two brake box are connected with the second power transmission mechanism by brake line;Wherein, the second power transmission mechanism drives brake line to make two brake box open and close by stretching and contracting; Two brake box bottom are fixed with brake box mouth that can be mutually buckled together, and the bottom of two brake box mouth is pointed after closing; The seedling basket, closed brake box and brake box mouth inside form the temporary storage cavity of seedling, the temporary storage cavity is equipped with the material blocking component that makes seedling fall into after being in inclined state, and the material blocking component includes baffle, upper baffle rod and lower baffle rod, which are sequentially arranged from left top to right bottom in the temporary storage cavity; The side of the seedling basket is provided with an outer cylinder into which one end of the connecting arm frame is inserted, and the baffle is fixed to the end of the connecting arm frame inserted into the outer cylinder. The upper baffle rod is two, and oppositely fixed to the inside of the brake box, and the end of the two upper baffle rods is staggered. The lower baffle rod is two, and oppositely fixed to the inner wall of the brake box mouth, and the lower baffle rod includes a light rod with staggered ends, and the root of the light rod is connected to the brake box mouth by an elastic member.

2. The sweet potato seedling cutting into soil planting device according to claim 1, characterized in that: The side wall of each brake box mouth is provided with a soil breaking piece, the soil breaking piece includes a piece body with a soil breaking end, a through hole is transversely formed in the piece body, and a gas nozzle is arranged in the through hole.

3. The sweet potato seedling cutting into soil planting device according to claim 1, characterized in that: The side of the through hole located at the soil breaking end is provided with an inclined wall, the gas emitted by the gas nozzle is divided by the inclined wall, and the divided gas is blown out along the two sides of the soil breaking end.

4. The sweet potato seedling cutting into soil planting device according to claim 3, characterized in that: The inclined wall is inclined inward from the top to the bottom, so that the inclined direction of the inclined wall is towards the lower side of the soil breaking end, and the inclined wall forms a channel for the gas flow to flow out towards the lower side of the soil breaking end.

5. The sweet potato seedling cutting into soil planting device according to claim 2, characterized in that: The side of the piece body away from the soil breaking end is a root fixed to the side wall of the brake box mouth, the two ends of the root extend towards the soil breaking end to form an upper edge and a lower edge, and the cross-sectional dimension of the upper edge and the lower edge gradually decreases from the root to the soil breaking end.

6. The sweet potato seedling cutting into soil planting device according to claim 1, characterized in that: The top of the two brake boxes is hinged to a top plate fixed to the seedling basket, and the front and rear ends of the two brake boxes are connected by a first spring.

7. The sweet potato seedling cutting into soil planting device according to claim 1, characterized in that: The first power transmission mechanism includes a driving wheel, a first driven wheel and a second driven wheel rotationally connected to the side assembly plate and connected to each other by a chain, the main shaft end of the first driven wheel is fixed with a first swing arm, one end of the first swing arm is rotationally connected with a push arm beam, and the push arm beam is connected to the seedling basket, the main shaft end of the second driven wheel is fixed with a second swing arm, one end of the second swing arm is rotationally connected with a press arm beam, and the other end of the press arm beam is hingedly connected to the push arm beam.

8. The sweet potato seedling cutting into soil planting device according to claim 1, characterized in that: The second power transmission mechanism comprises a cam and a third swing arm rotatably connected to the side assembling plate, wherein the cam is connected to the second driven wheel through the main shaft; the front end of the third swing arm is rotatably connected to a first roller, which is in contact with the cam; and the gate line is connected to the bottom of the third swing arm.

9. The sweet potato seedling cutting into soil planting device according to claim 1, characterized in that: The rear side of each seedling basket is provided with a soil pressing assembly, which comprises: a connecting arm, one end of which is fixed to the seedling basket and the other end of which is rotatably connected to a second roller; a base plate, which is fixed to the frame body; a fourth swing arm, the top end of which is hingedly connected to the base plate, the middle part of which is connected to the base plate through a second spring, and the bottom end of which is rotatably connected to a soil pressing roller; the front side of the fourth swing arm is provided with a sliding groove, and the second roller extends into the sliding groove.

10. The sweet potato seedling cutting and planting device according to claim 1, characterized in that: The top of the frame body is fixedly provided with a temporary storage table and a workbench in staggered heights, the temporary storage table and the workbench are connected through an inclined sliding table plate, and a seedling dropping pipe is arranged on the workbench and located directly above the seedling basket.

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