Seedling inserting device and seedling inserting method for sweet potato planting

Abstract

The invention discloses a seedling transplanting device and a seedling transplanting method for sweet potato planting, and relates to the field of agricultural planting equipment. A seedling inserting device for sweet potato planting comprises a movable base and further comprises a supporting cylinder fixedly installed on the movable base, and U-shaped grooves allowing planted sweet potato seedlings to pass through are symmetrically formed in the two sides of the lower end of the supporting cylinder; the seedling inserting cylinder is arranged in the supporting cylinder and is connected to the supporting cylinder in a lifting manner; water is sprayed to the inner wall of the seedling inserting cylinder, so that a thin water film is formed on the inner wall of the seedling inserting cylinder, friction force between seedlings and the seedling inserting cylinder is effectively reduced, the seedlings can more smoothly fall into soil through the seedling inserting cylinder, epidermal tissues of the seedlings are prevented from being damaged by friction, and the survival rate of the seedlings is increased; and redundant water sprayed to the inner wall of the seedling inserting cylinder is condensed into water drops which fall onto soil, so that the soil around the root system of the seedling is wetted, the survival of the seedling is facilitated, and the survival rate of the seedling is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural planting equipment, and in particular relates to a seedling transplanting device and a seedling transplanting method for sweet potato planting. Background Art

[0002] Sweet potato is a high-yield and highly adaptable food crop that is closely related to industrial and agricultural production and people's lives. In addition to being a staple food, the tubers are also an important raw material for food processing, starch and alcohol manufacturing industries. The roots, stems and leaves are excellent feed.

[0003] Sweet potato planting is mostly carried out by inserting the base 3-4 nodes of the cut sweet potato seedlings into the soil. During planting, it is mostly done with the help of a seedling planter. However, the existing seedling planters have relatively single functions. When the sweet potato seedlings flow into the hole grooves through the seedling planting tube of the seedling planter, the stems or roots of the seedlings will rub against the inner wall of the seedling planting tube, which may damage the epidermal tissue of the seedlings, thereby reducing the survival rate of the sweet potato seedlings. In view of this, the present invention is specially proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a seedling transplanting device and a seedling transplanting method for sweet potato planting that can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A seedling transplanting device for sweet potato planting comprises a mobile base, and also comprises: a support cylinder fixedly mounted on the mobile base, wherein the lower end of the support cylinder is symmetrically provided with U-shaped grooves on both sides for the sweet potato seedlings to pass through after planting; a seedling transplanting cylinder, which is arranged in the support cylinder and is lifted and lowered connected to the support cylinder, wherein the lower end of the seedling transplanting cylinder is rotatably connected with a plurality of fan-shaped plates at equal intervals in a circle, and the plurality of fan-shaped plates form a cone head, and the inner wall of the upper end of the seedling transplanting cylinder is equidistantly provided with a plurality of atomizing nozzles in an inclined manner, and an infusion cavity is provided on the seedling transplanting cylinder, and the atomizing nozzle is connected to the infusion cavity; and a second conduit is arranged on the seedling transplanting cylinder and connected to the infusion cavity.

[0007] In order to be able to drive the seedling planting tube to move upward or downward, preferably, a plurality of hydraulic telescopic rods are fixedly connected to the inner wall of the support tube at equal intervals on the circumference, and the seedling planting tube is fixedly connected to the output ends of the hydraulic telescopic rods.

[0008] Preferably, a hollow cavity is provided on the support tube, a piston disk is slidably connected in the hollow cavity, a liquid storage cavity is provided in the hollow cavity below the piston disk, the infusion cavity is connected with the liquid storage cavity through catheter 2, a water tank is fixedly installed on the mobile base, and the liquid storage cavity is connected with the water tank through catheter 1.

[0009] Furthermore, it also includes a spring arranged in the hollow cavity, one end of the spring is fixedly connected to the piston disk, and the other end is fixedly connected to the inner wall of the hollow cavity, the inner wall of the support tube is fixedly connected with a guide sleeve, and a traction rope is provided in the guide sleeve, one end of the traction rope is fixedly connected to the seedling transplanting tube, and the other end passes through the hollow cavity and is fixedly connected to the piston disk.

[0010] In order to automatically cover the roots of the sweet potato seedlings with soil so as to fix the root system and prevent the plants from falling over, further, the inner walls on both sides of the lower end of the support tube are fixedly connected with sleeves, a sliding disk is slidably connected in the sleeve, a push rod is fixedly connected to the sliding disk, a push shovel is fixedly connected to the push rod, an air storage chamber is provided above the piston disk in the hollow cavity, the sleeve is connected to the air storage chamber through a pipe 1, a pipe 2 connected to the air storage chamber is provided on the support tube, a tension spring is provided in the sleeve, one end of the tension spring is fixedly connected to the sliding disk, and the other end is fixedly connected to the inner wall of the sleeve, and an air leakage hole is provided on the sleeve.

[0011] Preferably, a rotating seat is fixedly connected to the fan-shaped plate, a connecting seat is rotatably connected to the rotating seat, and the connecting seat is fixedly connected to the supporting cylinder.

[0012] In order to facilitate the operator to control the opening and closing of the fan-shaped plate, a torsion spring is further provided between the rotating seat and the connecting seat, one end of the torsion spring is fixedly connected to the rotating seat, and the other end is fixedly connected to the connecting seat. A pull rope is fixedly connected to the rotating seat, and a pull ring is fixedly connected to the end of the pull rope away from the rotating seat.

[0013] In order to facilitate the staff to operate the pull ring, further, a support ring is fixedly connected to the seedling tube, and the end of the pull rope away from the rotating seat passes through the support ring, and the support ring is used to play a role of limiting support for the pull ring.

[0014] In order to tow the mobile base forward, preferably, the traction seat on the mobile base is used to connect with the traction mechanism of the rear axle of the agricultural machinery, and a seedling storage frame is provided on the mobile base.

[0015] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0016] The present invention sprays water onto the inner wall of the seedling planting tube, thereby forming a thin water film on the inner wall of the seedling planting tube, effectively reducing the friction between the seedling and the seedling planting tube, so that the seedling can pass through the seedling planting tube more smoothly and fall into the soil, preventing friction from damaging the epidermal tissue of the seedling, thereby improving the survival rate of the seedling, and the excess water sprayed onto the inner wall of the seedling planting tube condenses into water droplets and falls onto the soil, thereby moistening the soil around the root system of the seedling, thereby facilitating the survival of the seedling, and further improving the survival rate of the seedling;

[0017] After the sweet potato seedlings are planted, the soil is automatically covered on the roots of the sweet potato seedlings, so that the soil covering task can be completed quickly and efficiently, thereby making the planting process more efficient and reducing the planting cost.

[0018] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the attached picture:

[0020] Figure 1 It is a cross-sectional view of the mobile base, the support tube, and the seedling planting tube of the present invention;

[0021] Figure 2 It is a cross-sectional view of the support tube, the seedling planting tube and the sleeve of the present invention;

[0022] Figure 3 It is a cross-sectional view of the seedling-planting tube and the fan-shaped plate of the present invention;

[0023] Figure 4 The present invention Figure 2 A magnified view of part A;

[0024] Figure 5 The present invention Figure 3 A magnified view of part B;

[0025] Figure 6 The present invention Figure 2 Enlarged view of part C;

[0026] Figure 7 It is a structural schematic diagram of the present invention.

[0027] In the figure: 1. mobile base; 101. traction seat; 102. seedling storage frame; 2. support tube; 3. seedling planting tube; 301. fan-shaped plate; 302. rotating seat; 303. connecting seat; 304. torsion spring; 305. pull rope; 306. hydraulic telescopic rod; 307. pull ring; 4. hollow cavity; 401. piston disk; 402. spring; 403. traction rope; 404. catheter one; 405. water storage tank; 406. catheter two; 407. infusion cavity; 408. atomizing nozzle; 5. sleeve; 501. sliding disk; 502. push rod; 503. push shovel; 504. tension spring; 505. vent hole; 506. pipeline one; 507. pipeline two. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0029] Embodiment 1:

[0030] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 A seedling transplanting device for sweet potato planting comprises a mobile base 1, and also comprises: a support tube 2 fixedly mounted on the mobile base 1, wherein the lower end of the support tube 2 is symmetrically provided with U-shaped grooves for the sweet potato seedlings to pass through after planting; a seedling transplanting tube 3, which is arranged in the support tube 2 and is lifted and connected to the support tube 2, wherein the lower end of the seedling transplanting tube 3 is equidistantly rotatably connected with a plurality of fan-shaped plates 301, the plurality of fan-shaped plates 301 form a cone head, a plurality of atomizing nozzles 408 are equidistantly provided on the inner wall of the upper end of the seedling transplanting tube 3, the atomizing nozzles 408 are inclinedly arranged, an infusion cavity 407 is provided on the seedling transplanting tube 3, and the atomizing nozzle 408 is connected to the infusion cavity 407; a second conduit 406 is arranged on the seedling transplanting tube 3, and is connected to the infusion cavity 407.

[0031] A plurality of hydraulic telescopic rods 306 are fixedly connected to the inner wall of the support tube 2 at equal intervals, and the seedling planting tube 3 is fixedly connected to the output end of the hydraulic telescopic rod 306 .

[0032] A hollow cavity 4 is provided on the support tube 2, and a piston disk 401 is slidably connected in the hollow cavity 4. A liquid storage cavity is provided below the piston disk 401 in the hollow cavity 4, and the infusion cavity 407 is connected to the liquid storage cavity through a second conduit 406. A water tank 405 is fixedly installed on the mobile base 1, and the liquid storage cavity is connected to the water tank 405 through a first conduit 404.

[0033] It also includes a spring 402 arranged in the hollow cavity 4, one end of the spring 402 is fixedly connected to the piston disk 401, and the other end is fixedly connected to the inner wall of the hollow cavity 4. A guide sleeve is fixedly connected to the inner wall of the support tube 2, and a traction rope 403 is arranged in the guide sleeve. One end of the traction rope 403 is fixedly connected to the seedling tube 3, and the other end passes through the hollow cavity 4 and is fixedly connected to the piston disk 401.

[0034] The traction seat 101 on the mobile base 1 is used to be connected with the traction mechanism of the rear axle of the agricultural machinery. The mobile base 1 is provided with a seedling storage frame 102.

[0035] When in use, the traction mechanism of the rear axle of the agricultural machine is connected to the traction seat 101 of the mobile base 1, and then the sweet potato seedlings to be planted are neatly arranged and placed in the seedling storage frame 102, and then the operator sits on the mobile base 1 to place the sweet potato seedlings in the seedling storage frame 102 into the seedling planting tube 3 to plant the sweet potatoes;

[0036] When planting, first start the hydraulic telescopic rod 306. At this time, the hydraulic telescopic rod 306 pushes the seedling tube 3 to move downward until the conical head at the lower end of the seedling tube 3 is inserted into the soil, and then flip the fan-shaped plate 301 upward to unfold the conical head, thereby opening the lower end of the seedling tube 3. At this time, the sweet potato seedlings fall into the hole groove inserted by the conical head along the seedling tube 3. At the same time, when the seedling tube 3 moves downward, the piston disk 401 can be pulled by the traction rope 403 to slide downward in the hollow cavity 4 and compress the spring 402. At the same time, when the piston disk 401 moves downward, the water stored in the water storage cavity is squeezed and transported into the infusion cavity 407 through the conduit 2 406. Finally, the water is sprayed out of the infusion cavity 407 through the atomizing nozzle 408, so that it is sprayed to the inside of the seedling tube 3. The water on the inner wall of the seedling tube 3 forms a thin water film, which effectively reduces the friction between the seedling and the seedling tube 3, so that the seedling can pass through the seedling tube 3 more smoothly and fall into the soil, preventing friction from damaging the epidermal tissue of the seedling, thereby improving the survival rate of the seedling. At the same time, the excess water sprayed on the inner wall of the seedling tube 3 condenses into water droplets and falls on the soil, thereby moistening the soil around the root system of the seedling, which is beneficial to the survival of the seedling and further improving the survival rate of the seedling. Then, the hydraulic telescopic rod 306 is started, and the hydraulic telescopic rod 306 drives the seedling tube 3 to move upward and reset. When the seedling head moves out of the soil, the soil around the hole groove pushed by the fan-shaped plate 301 will slide into the hole groove, thereby covering the root system of the sweet potato seedling, thereby completing the planting of the sweet potato seedling;

[0037] When the seedling tube 3 moves upward and resets under the drive of the hydraulic telescopic rod 306, the traction rope 403 that pulls the piston disc 401 downward is gradually relaxed. At this time, the compressed spring 402 generates a thrust to push the piston disc 401 to slide upward and reset in the hollow cavity 4. At the same time, when the piston disc 401 slides upward, it can absorb water in the water tank 405 into the air storage cavity through the conduit 1 404. Both the conduit 1 404 and the conduit 2 406 are provided with a one-way valve. Then the mobile base 1 can move forward under the traction of the agricultural machinery to continue to plant the sweet potato seedlings.

[0038] It should be additionally explained that the second conduit 406 is a stretchable and shrinkable hose, so the second conduit 406 will not interfere with the up and down movement of the seedling planting tube 3.

[0039] Embodiment 2:

[0040] Reference Figure 1 , Figure 2 , Figure 6 , Figure 7 , a seedling transplanting device for sweet potato planting is basically the same as Example 1, and further, the inner walls on both sides of the lower end of the support cylinder 2 are fixedly connected with sleeves 5, a sliding disk 501 is slidably connected in the sleeve 5, a push rod 502 is fixedly connected to the sliding disk 501, a push rod 502 is fixedly connected to the push rod 502, and a push shovel 503 is fixedly connected to the push rod 502, an air storage chamber is provided above the piston disk 401 in the hollow cavity 4, the sleeve 5 is connected to the air storage chamber through a pipe 1 506, a pipe 2 507 connected to the air storage chamber is provided on the support cylinder 2, a tension spring 504 is provided in the sleeve 5, one end of the tension spring 504 is fixedly connected to the sliding disk 501, and the other end is fixedly connected to the inner wall of the sleeve 5, and an air leakage hole 505 is opened on the sleeve 5.

[0041] In the process of planting sweet potatoes, when the piston disc 401 moves downward in the hollow cavity 4, external gas can be sucked into the gas storage cavity through the second pipe 507;

[0042] In order to prevent the gas from carrying particulate impurities into the gas storage chamber, an activated carbon filter can be added to the pipe 2 507 to filter the gas entering the gas storage chamber through the pipe 2 507. Since the activated carbon has a developed void structure and rich microporous organization inside, these microporous organizations have a strong adsorption force field. When the gas comes into contact with the activated carbon, the strong adsorption force field of the activated carbon micropores can adsorb the particulate matter in the air into the micropores, thereby playing a role in purifying the gas.

[0043] After the sweet potato seedlings are planted, when the seedling planting tube 3 moves upward and resets under the drive of the hydraulic telescopic rod 306, the traction rope 403 that pulls the piston disc 401 downward is gradually relaxed. At this time, the compressed spring 402 generates a thrust to push the piston disc 401 to slide upward and reset in the hollow cavity 4. At the same time, when the piston disc 401 slides upward, the gas temporarily stored in the gas storage cavity is squeezed by the piston disc 401 and filled into the sleeve 5 through the pipe 1 506, so that the air pressure in the sleeve 5 gradually increases. Both the pipe 1 506 and the pipe 2 507 are provided with a one-way valve. At this time, the sliding disc 501 moves outward toward the sleeve 5 under the push of the gas. The push rod 502 pushes the push shovel 503 to move synchronously, so that the push shovel 503 pushes the soil on both sides of the hole groove to gather toward the roots of the sweet potato seedlings, thereby covering the roots of the sweet potato seedlings with soil, and then filling the soil particles around the roots, so that the roots are better fixed in the soil, preventing the roots from being washed away by rain or loosened due to farming operations (such as weeding, fertilizing, etc.), so as to provide a stable foundation for the growth of the roots, which is conducive to the healthy development of the root system. At the same time, by automatically covering the roots of the sweet potato seedlings with soil, the soil covering task can be completed quickly and efficiently, thereby making the planting process more efficient and reducing the planting cost;

[0044] At the same time, when covering the roots of the sweet potato seedlings with soil, the gas can be slowly discharged from the sleeve 5 through the vent hole 505. Then, when the gas in the air storage chamber is completely filled into the sleeve 5, the gas is continuously discharged through the vent hole 505 to reduce the air pressure inside the sleeve 5. At this time, the stretched tension spring 504 pulls the sliding plate 501 to slide into the sleeve 5 and reset under its own tension. At the same time, the sliding plate 501 drives the push shovel 503 to reset through the push rod 502. After the push shovel 503 is reset, the mobile base 1 can move forward under the traction of the agricultural machinery to continue to plant the sweet potato seedlings.

[0045] It should be noted that the exhaust speed of the air vent 505 is much lower than the air intake speed of the pipe 1 506 , so the gas filled into the sleeve 5 is sufficient to push the sliding plate 501 to drive the dozer 503 to move.

[0046] Embodiment 3:

[0047] Reference Figure 2 , Figure 4 A seedling transplanting device for sweet potato planting is basically the same as Example 1. Furthermore, a rotating seat 302 is fixedly connected to the fan-shaped plate 301, and a connecting seat 303 is rotatably connected to the rotating seat 302, and the connecting seat 303 is fixedly connected to the support tube 2.

[0048] A torsion spring 304 is provided between the rotating seat 302 and the connecting seat 303. One end of the torsion spring 304 is fixedly connected to the rotating seat 302, and the other end is fixedly connected to the connecting seat 303. A pull rope 305 is fixedly connected to the rotating seat 302, and a pull ring 307 is fixedly connected to the end of the pull rope 305 away from the rotating seat 302.

[0049] A support ring is fixedly connected to the seedling tube 3, and one end of the pull rope 305 away from the rotating seat 302 passes through the support ring. The support ring is used to play a role of limiting support for the pull ring 307.

[0050] How the cone head unfolds:

[0051] When unfolding, the operator pulls the pull ring 307 to move. When the pull ring 307 moves, the rotating seat 302 can be pulled by the pull rope 305 to drive the fan-shaped plate 301 to flip upward, and the torsion spring 304 can be twisted to unfold the conical head, thereby opening the lower end of the seedling tube 3, so that the sweet potato seedlings placed in the seedling tube 3 can fall into the hole groove formed by the conical head inserted into the soil, thereby completing the planting of sweet potato seedlings;

[0052] After the sweet potato seedlings are planted, when the seedling tube 3 moves upward to reset, the pull ring 307 is slowly released, and the torsion spring 304 can twist the rotating seat 302 under the action of torque to drive the fan-shaped plate 301 to flip downward, so that the cone head is retracted, thereby closing the lower end of the seedling tube 3;

[0053] In summary, through the above operations, the operator can control the opening and closing of the lower end of the seedling planting tube 3 without complicated operations.

[0054] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as above with a preferred embodiment, it is not used to limit the present invention.

Claims

1. A seedling transplanting device for sweet potato planting, comprising a mobile base (1), characterized in that: Also includes: A support cylinder (2) fixedly mounted on the mobile base (1), Wherein, U-shaped grooves for the sweet potato seedlings to pass through after planting are symmetrically opened on both sides of the lower end of the support tube (2); The seedling planting tube (3) is arranged in the support tube (2) and is connected to the support tube (2) in a lifting manner. The lower end of the seedling planting tube (3) is rotatably connected with a plurality of fan-shaped plates (301) at equal intervals, the plurality of fan-shaped plates (301) form a cone head, the inner wall of the upper end of the seedling planting tube (3) is equidistantly provided with a plurality of atomizing nozzles (408), the atomizing nozzles (408) are arranged at an angle, the seedling planting tube (3) is provided with an infusion cavity (407), and the atomizing nozzles (408) are connected with the infusion cavity (407); The second catheter (406) is arranged on the seedling inserting tube (3) and is connected to the infusion cavity (407).

2. A seedling transplanting device for sweet potato planting according to claim 1, characterized in that: A plurality of hydraulic telescopic rods (306) are fixedly connected to the inner wall of the support tube (2) at equal intervals, and the seedling transplanting tube (3) is fixedly connected to the output ends of the hydraulic telescopic rods (306).

3. A seedling transplanting device for sweet potato planting according to claim 1, characterized in that: The support tube (2) is provided with a hollow cavity (4), a piston disc (401) is slidably connected in the hollow cavity (4), a liquid storage cavity is provided in the hollow cavity (4) below the piston disc (401), the infusion cavity (407) is connected to the liquid storage cavity through a second conduit (406), a water storage tank (405) is fixedly mounted on the mobile base (1), and the liquid storage cavity is connected to the water storage tank (405) through a first conduit (404).

4. A seedling transplanting device for sweet potato planting according to claim 3, characterized in that: It also includes a spring (402) arranged in the hollow cavity (4), one end of the spring (402) being fixedly connected to the piston disc (401), and the other end being fixedly connected to the inner wall of the hollow cavity (4); a guide sleeve being fixedly connected to the inner wall of the support cylinder (2), a traction rope (403) being arranged in the guide sleeve, one end of the traction rope (403) being fixedly connected to the seedling transplanting cylinder (3), and the other end passing through the hollow cavity (4) and being fixedly connected to the piston disc (401).

5. A seedling transplanting device for sweet potato planting according to claim 4, characterized in that: The inner walls on both sides of the lower end of the support cylinder (2) are fixedly connected with sleeves (5), a sliding disk (501) is slidably connected inside the sleeve (5), a push rod (502) is fixedly connected to the sliding disk (501), a push shovel (503) is fixedly connected to the push rod (502), an air storage chamber is provided above the piston disk (401) in the hollow cavity (4), the sleeve (5) is connected to the air storage chamber through a pipe 1 (506), a pipe 2 (507) connected to the air storage chamber is provided on the support cylinder (2), a tension spring (504) is provided inside the sleeve (5), one end of the tension spring (504) is fixedly connected to the sliding disk (501), and the other end is fixedly connected to the inner wall of the sleeve (5), and an air leakage hole (505) is provided on the sleeve (5).

6. A seedling transplanting device for sweet potato planting according to claim 1, characterized in that: The fan-shaped plate (301) is fixedly connected to a rotating seat (302), the rotating seat (302) is rotatably connected to a connecting seat (303), and the connecting seat (303) is fixedly connected to the supporting cylinder (2).

7. A seedling transplanting device for sweet potato planting according to claim 6, characterized in that: A torsion spring (304) is provided between the rotating seat (302) and the connecting seat (303), one end of the torsion spring (304) is fixedly connected to the rotating seat (302), and the other end is fixedly connected to the connecting seat (303). A pull rope (305) is fixedly connected to the rotating seat (302), and one end of the pull rope (305) away from the rotating seat (302) is fixedly connected to a pull ring (307).

8. A seedling transplanting device for sweet potato planting according to claim 7, characterized in that: A support ring is fixedly connected to the seedling transplanting tube (3), and one end of the pull rope (305) away from the rotating seat (302) passes through the support ring. The support ring is used to play a role of limiting support for the pull ring (307).

9. A seedling transplanting device for sweet potato planting according to claim 1, characterized in that: The traction seat (101) on the mobile base (1) is used to be connected to the traction mechanism of the rear axle of the agricultural machinery, and the mobile base (1) is provided with a seedling storage frame (102).

10. A method for planting sweet potatoes, using a planting device for planting sweet potatoes as claimed in claim 5, characterized in that: The following steps are included: Step 1: firstly place the sweet potato seedlings into the seedling planting tube (3), and then move the seedling planting tube (3) downward until the conical head at the lower end of the seedling planting tube (3) is inserted into the soil to form a planting hole groove; Step 2: flip the fan-shaped plate (301) upward to unfold the conical head, so that the sweet potato seedlings fall into the hole groove along the seedling planting tube (3); Step 3: The water in the water storage chamber is squeezed by the piston plate (401) moving downward in the hollow chamber (4) and transported into the infusion chamber (407) through the second conduit (406). Finally, the water is sprayed out through the atomizing nozzle (408) so as to be sprayed onto the inner wall of the seedling planting tube (3), thereby forming a thin water film on the inner wall of the seedling planting tube (3); Step 4: When the sweet potato seedlings flow into the hole grooves, the seedling tube (3) is moved upwards. When the seedling heads are moved out of the soil, the soil pushed around the hole grooves by the fan-shaped plates (301) will slide into the hole grooves, thereby covering the roots of the sweet potato seedlings, thereby completing the planting of the sweet potato seedlings.

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