Seedling transplanter

Abstract

The invention relates to the technical field of seedling transplanting, in particular to a seedling transplanting machine. Shoveling digging is replaced with a rotary digging mode, extrusion hardening of seedling root system soil is avoided, rotary digging feeding resistance is reduced, and seedling transplanting efficiency is improved; comprising a walking device, a frame body installed on the walking device, a lifting frame installed on the frame body in an up-and-down sliding mode, a lifting driver installed on the frame body and providing power for up-and-down movement of the lifting frame, an L-shaped fork frame installed on the lifting frame and a rotary excavating mechanism installed on the L-shaped fork frame. The rotary digging mechanism comprises two rotating cylinders fixedly mounted on the L-shaped fork frame and a ball clack type digging knife fixedly mounted between the two rotating cylinders, and a semi-ring-shaped rack saw and a reciprocating driver for providing power for forward and reverse rotation of the semi-ring-shaped rack saw are rotationally mounted on the ball clack type digging knife; the reciprocating driver comprises a mounting seat, two gears mounted on the mounting seat, and a first fan-shaped fluted disc mounted on one of the gears.

Description

Technical Field

[0001] The invention relates to the technical field of seedling transplanting, in particular to a seedling transplanting machine. Background Art

[0002] As we all know, the seedlings cultivated by sowing or vegetative propagation have a high density and each seedling occupies a small nutritional space. To cultivate large seedlings, they must be transplanted. Depending on the requirements of gardening for various specifications of seedlings and the needs of cultivation methods, transplanting can be done once or multiple times. Seedling transplanting is an important technical link in horticulture and forestry, which directly affects the survival rate and later growth of seedlings.

[0003] For example, Chinese utility model patent CN220211294U discloses a seedling transplanting device used in forestry, including a forestry seedling transplanting device body, which includes a seedling transplanting frame structure and a seedling fixing structure. It can complete the three steps of shoveling, transporting and transplanting seedlings at one time, and has a simple structure and is easy to use, which greatly improves the transplanting efficiency of forestry seedlings.

[0004] However, when the inventor implemented this device, he found the following defects: during the process of shoveling the roots of seedlings, the soil around the roots of the seedlings was aggregated and squeezed, causing the soil to become compacted, which is not conducive to the subsequent root growth of the seedlings; the feed resistance during the shoveling process of the device is large, the energy consumption of the equipment is high, and the efficiency of transplanting seedlings needs to be further improved. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a seedling transplanter which adopts rotary digging instead of shoveling to avoid squeezing and compacting of the soil around the roots of seedlings, reduce the feeding resistance of rotary digging, and improve the efficiency of seedling transplanting.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a seedling transplanter, comprising a walker, a frame installed on the walker, a lifting frame installed on the frame for sliding up and down, a lifting drive installed on the frame and providing power for the lifting frame to move up and down, an L-shaped fork frame installed on the lifting frame, and a rotary digging mechanism installed on the L-shaped fork frame, the rotary digging mechanism comprising two rotating cylinders fixedly installed on the L-shaped fork frame, a ball-flap type digging tool fixedly installed between the two rotating cylinders, a semi-circular tooth saw and a reciprocating drive providing power for the forward and reverse rotation of the semi-circular tooth saw being rotatably installed on the ball-flap type digging tool.

[0009] Furthermore, the walking device can be a tram, an oil truck or a human-powered cart, etc.; the lifting frame is provided with a slide groove allowing the lifting frame to slide up and down, and the lifting drive is preferably a hydraulic cylinder, which is fixedly mounted on the frame, and the output end of the hydraulic cylinder is fixedly connected to the lifting frame; the lifting drive can also adopt other equivalent parts that drive the lifting frame to slide up and down along the frame; the central axis of the output shaft on the two rotating cylinders passes through the center of the sphere where the ball-flap digging cutter is located; the ball-flap digging cutter takes a 30°-60° spherical shell segment of the spherical shell; the center of the circular ring where the semi-annular tooth saw is located coincides with the center of the spherical shell where the ball-flap digging cutter is located; the ball-flap digging cutter is provided with a rail groove, and the semi-annular tooth saw is rotatably installed in the rail groove.

[0010] Preferably, the reciprocating drive includes a mounting base fixedly mounted at the connection between the spherical-flap excavator and the rotary cylinder, two mutually meshing gears rotatably mounted on the mounting base, a first sector-shaped toothed disc fixedly mounted on one of the gears, a second sector-shaped toothed disc fixedly mounted on the other gear, and a rotator providing power for the rotation of one group of gears, the semi-annular tooth saw is provided with teeth meshing with the first sector-shaped toothed disc or the second sector-shaped toothed disc, and the teeth on the first sector-shaped toothed disc and the second sector-shaped toothed disc face opposite directions; further, the rotator can use a motor alone; further, the rotator includes a worm wheel fixedly connected to one group of gears, a worm rotatably mounted on the mounting base and a motor, the worm wheel and the worm are meshing, and the motor provides power for the rotation of the worm.

[0011] Preferably, a telescopic arm is installed on the lifting frame, a clamp is fixedly installed on the end of the telescopic arm, and a telescopic drive for providing power for the extension of the telescopic arm is installed on the telescopic arm; further, the telescopic drive is preferably a hydraulic cylinder, one end of the hydraulic cylinder is hinged to the movable end of the telescopic arm, and the other end of the hydraulic cylinder is hinged to the fixed end of the telescopic arm, and a pneumatic cylinder or other equivalent parts that can drive the telescopic arm to extend may also be used.

[0012] Preferably, the telescopic arm is hingedly mounted on a lifting frame, and a swing drive is installed on the lifting frame to provide power for the telescopic arm to swing around a hinge point. The swing drive includes a motor fixedly mounted on the lifting frame, an eccentric transmission member fixedly mounted on the motor, and an articulated connecting rod. One end of the articulated connecting rod is rotatably connected to the eccentric transmission member, and the other end of the articulated connecting rod is articulated to the telescopic arm. Furthermore, the eccentric transmission member may be an eccentric rod or an eccentric wheel, etc., one end of the articulated connecting rod is articulated to a portion of the eccentric transmission member away from a fixed connection point between the motor output shaft and the eccentric transmission member, and the other end of the articulated connecting rod is articulated to a fixed end on the telescopic arm.

[0013] Preferably, a supporting frame is fixedly mounted on the lifting frame, and the supporting frame is used for supporting the bottom of the telescopic arm in a limited position.

[0014] Preferably, it also includes a medicine barrel, a pressure pump and a liquid supply pipe fixedly installed on the top of the walker, an atomizing nozzle is installed at the clamping part of the clamp, the input end of the pressure pump extends into the medicine barrel, the output end of the pressure pump is connected with the input end of the liquid supply pipe, and the output end of the liquid supply pipe is connected with the input end of the atomizing nozzle; further, a soft redundant section is provided on the liquid supply pipe to avoid interference with the lifting of the lifting frame.

[0015] Preferably, a soft cushion layer is provided at the clamping portion of the clamp; further, the soft cushion layer can be a flexible pad such as a rubber pad, a silicone pad, a sponge pad, a fiber pad, etc.

[0016] Preferably, the bottom of the frame is hingedly mounted on the walker, and an adjustment cylinder is hingedly mounted on the walker, and the movable end of the adjustment cylinder is hingedly connected to the middle of the frame; further, the adjustment cylinder is preferably a hydraulic cylinder, and a pneumatic cylinder or an electric cylinder can also be used. A cantilever is fixedly mounted on the walker, and the bottom of the frame is hingedly mounted on the cantilever.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a seedling transplanter with the following beneficial effects: the seedling transplanter drives the lifting frame to move downward through a lifting drive until the bottom of the L-shaped fork frame contacts the ground, and the rotating cylinder drives the ball-flap digging knife to rotate. At the same time, the reciprocating drive drives the semi-annular tooth saw to reciprocate. During the reciprocating movement of the semi-annular tooth saw, the hard soil layer is sawed in a semi-annular seam shape, and the ball-flap digging knife quickly feeds at the gap cut by the semi-annular tooth saw. The rotating cylinder drives the ball-flap digging knife to rotate 180 degrees and then drives the ball-flap digging knife to rotate in the opposite direction again until the ball-flap digging knife is located below the hemispherical soil block cut by the root of the seedling. The lifting drive drives the lifting frame to move upward, and the seedlings and the root soil are dug out as a whole, and the walker drives the seedlings to move to the transplanting place for planting; the semi-annular tooth pitch sawing seam and rotary digging method are used instead of the extrusion shovel digging, so as to avoid the extrusion and compaction of the seedling root soil, reduce the rotary digging feeding resistance, and greatly improve the seedling transplanting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the upward plane structure of the present invention;

[0021] Figure 3 The present invention Figure 2 Schematic diagram of the cross-section structure at AA in the middle;

[0022] Figure 4 The present invention Figure 3 Schematic diagram of the cross-section structure at BB in the middle;

[0023] Figure 5 It is a schematic diagram of the structure of the position of the ball-shaped digging knife in the embodiment of removing soil from the roots of seedlings of the present invention;

[0024] Figure 6 The present invention Figure 1 A schematic diagram of the partially enlarged structure at C in the middle;

[0025] Figure 7 The present invention Figure 1 The schematic diagram of the local enlarged structure at D in the middle;

[0026] Figure 8 The present invention Figure 3 The schematic diagram of the local enlarged structure at E in the middle;

[0027] Fig. 9 The present invention Figure 3 The schematic diagram of the partial enlarged structure at F in the middle;

[0028] Fig.10 The present invention Figure 4 A schematic diagram of the local enlarged structure at G in the middle;

[0029] Markings in the attached drawings: 1. walker; 2. frame; 3. lifting frame; 4. lifting drive; 5. L-shaped fork frame; 6. rotating cylinder; 7. ball-flap digging tool; 8. semi-circular tooth saw; 9. mounting seat; 10. gear; 11. first sector-shaped gear disc; 12. second sector-shaped gear disc; 13. rotator; 14. teeth; 15. telescopic arm; 16. clamp; 17. telescopic drive; 18. motor; 19. eccentric transmission member; 20. articulated connecting rod; 21. support frame; 22. medicine cartridge; 23. pressure pump; 24. liquid supply pipe; 25. atomizing nozzle; 26. soft cushion layer; 27. adjustment cylinder. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the invention, the technical solutions in the embodiments of the invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the invention. Obviously, the described embodiments are only embodiments of a part of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the invention.

[0031] As described in the background technology, a seedling transplanting device used in forestry; during the process of shoveling the roots of the seedlings, aggregation and squeezing are formed on the soil of the seedling roots, causing the soil to become compacted, which is not conducive to the subsequent root growth of the seedlings; the feed resistance of the device is large during the shoveling process, the energy consumption of the equipment is high, and the transplanting efficiency of the seedlings needs to be further improved.

[0032] In order to solve this technical problem, the present invention provides a seedling transplanter, which is used for transplanting seedlings.

[0033] It should be noted that, in the absence of conflict, the embodiments of the invention and the features and technical solutions in the embodiments may be combined with each other.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] Example 1

[0036] Please refer to Figure 1-4 A seedling transplanter, the seedling transplanter specifically includes: a walker 1, a frame 2 installed on the walker 1, a lifting frame 3 installed on the frame 2 for sliding up and down, a lifting drive 4 installed on the frame 2 and providing power for the lifting frame 3 to move up and down, an L-shaped fork frame 5 installed on the lifting frame 3, and a rotary digging mechanism installed on the L-shaped fork frame 5, the rotary digging mechanism includes two rotating cylinders 6 fixedly installed on the L-shaped fork frame 5, a ball-flap type digging tool 7 fixedly installed between the two rotating cylinders 6, a semi-annular tooth saw 8 and a reciprocating drive that provides power for the forward and reverse rotation of the semi-annular tooth saw 8 are rotatably installed on the ball-flap type digging tool 7.

[0037] Furthermore, the walking device 1 can be a tram, an oil truck or a human-powered cart, etc.; the lifting frame 3 is provided with a slide groove allowing the lifting frame 3 to slide up and down, and the lifting drive 4 is preferably a hydraulic cylinder, which is fixedly mounted on the frame 2, and the output end of the hydraulic cylinder is fixedly connected to the lifting frame 3; the lifting drive 4 can also adopt other equivalent parts that drive the lifting frame 3 to slide up and down along the frame 2; the central axis of the output shaft on the two rotating cylinders 6 passes through the center of the sphere where the ball-flap digging cutter 7 is located; the ball-flap digging cutter 7 takes a 30°-60° spherical shell segment of the spherical shell; the center of the ring where the semi-annular tooth saw 8 is located coincides with the center of the spherical shell where the ball-flap digging cutter 7 is located; the ball-flap digging cutter 7 is provided with a rail groove, and the semi-annular tooth saw 8 is rotatably installed in the rail groove.

[0038] For details, please refer to Figure 6 , Figure 8 and Fig.10The reciprocating drive includes a mounting base 9 fixedly mounted at the connection between the ball-flap digging cutter 7 and the rotary cylinder 6, two mutually meshing gears 10 rotatably mounted on the mounting base 9, a first sector-shaped toothed disc 11 fixedly mounted on one of the gears 10, a second sector-shaped toothed disc 12 fixedly mounted on the other gear 10, and a rotator 13 providing power for the rotation of one group of gears 10. The semi-annular tooth saw 8 is provided with teeth 14 meshing with the first sector-shaped toothed disc 11 or the second sector-shaped toothed disc 12, and the teeth on the first sector-shaped toothed disc 11 and the second sector-shaped toothed disc 12 face opposite directions; further, the rotator 13 can use a motor alone; further, the rotator 13 includes a worm wheel fixedly connected to one group of gears 10, a worm rotatably mounted on the mounting base 9 and a motor, the worm wheel and the worm are meshed, and the motor provides power for the rotation of the worm.

[0039] The seedling transplanter provided in this embodiment drives one group of gears 10 to rotate through the rotator 13, and the other gear 10 rotates in the opposite direction synchronously, so that the first sector toothed disc 11 and the second sector toothed disc 12 rotate in opposite directions synchronously. When the teeth on the first sector toothed disc 11 mesh with the teeth 14, the semi-annular toothed saw 8 rotates forward, and then the teeth on the first sector toothed disc 11 are out of contact with the teeth 14, the teeth on the second sector toothed disc 12 mesh with the teeth 14, and the semi-annular toothed saw 8 rotates in the opposite direction, and so on and so forth, realizing the semi-annular The reciprocating motion of the semi-circular tooth saw 8 at the ball-flap digging cutter 7 can realize the rapid sawing of the soil and the roots of the seedlings. The soil at the cutting slit of the semi-circular tooth saw 8 is loose, and part of the soil is thrown out from the cutting slit during the reciprocating motion of the semi-circular tooth saw 8, thereby reducing the feeding resistance of the ball-flap digging cutter 7; and the rotator 13 adopts a worm wheel, a worm and a motor. When the motor stops running, the worm limits the worm wheel to prevent the gear 10 from rotating, thereby preventing the semi-circular tooth saw 8 from moving by itself; in another embodiment, the ball-flap digging cutter 7 rotates to Figure 5 In the state shown, the ball-valve type digging cutter 7 is used as a "bucket" and cooperates with the walker 1. The ball-valve type digging cutter 7 can fill the loose soil around the tree pit into the tree pit.

[0040] Example 2

[0041] The seedling transplanter provided in Example 1 is further optimized. For details, please refer to Figure 7 or Fig. 9 A telescopic arm 15 is installed on the lifting frame 3, and a clamp 16 is fixedly installed at the end of the telescopic arm 15. A telescopic driver 17 for providing power for the extension of the telescopic arm 15 is installed on the telescopic arm 15; further, the telescopic driver 17 is preferably a hydraulic cylinder, one end of the hydraulic cylinder is hinged to the movable end of the telescopic arm 15, and the other end of the hydraulic cylinder is hinged to the fixed end of the telescopic arm 15, and a pneumatic cylinder or other equivalent parts that can drive the telescopic arm 15 to extend can also be used; the clamp 16 is preferably a thumb clamp, and other equivalent mechanical clamps that have the effect of clamping the main trunk of the seedlings can also be used.

[0042] For details, please refer to Figure 7 or Fig. 9 The telescopic arm 15 is hingedly mounted on the lifting frame 3, and a swing drive is installed on the lifting frame 3 to provide power for the telescopic arm 15 to swing around the hinge point. The swing drive includes a motor 18 fixedly mounted on the lifting frame 3, an eccentric transmission member 19 fixedly mounted on the motor 18, and an articulated connecting rod 20. One end of the articulated connecting rod 20 is rotatably connected to the eccentric transmission member 19, and the other end of the articulated connecting rod 20 is articulated to the telescopic arm 15; further, the eccentric transmission member 19 can be an eccentric rod or an eccentric wheel, etc., one end of the articulated connecting rod 20 is articulated to the eccentric transmission member 19 at a fixed connection point away from the output shaft of the motor 18 and the eccentric transmission member 19, and the other end of the articulated connecting rod 20 is articulated to the fixed end on the telescopic arm 15.

[0043] For details, please refer to Fig. 9 A support frame 21 is fixedly mounted on the lifting frame 3, and the support frame 21 is used to limit the bottom of the telescopic arm 15.

[0044] For details, please refer to Figure 7 A soft pad layer 26 is provided at the clamping portion of the clamp 16; further, the soft pad layer 26 can be a flexible pad such as a rubber pad, a silicone pad, a sponge pad, a fiber pad, etc.

[0045] For details, please refer to Figure 3 The bottom of the frame 2 is hingedly mounted on the walking device 1, and an adjustment cylinder 27 is hingedly mounted on the walking device 1, and the movable end of the adjustment cylinder 27 is hingedly connected to the middle of the frame 2; further, the adjustment cylinder 27 is preferably a hydraulic cylinder, and a pneumatic cylinder or an electric cylinder can also be used. A cantilever is fixedly mounted on the walking device 1, and the bottom of the frame 2 is hingedly mounted on the cantilever.

[0046] The seedling transplanter provided in the present embodiment, when the seedlings are being rotary dug or moved, the telescopic drive 17 drives the telescopic arm 15 to extend, and the trunk of the seedling enters the clamp 16, and the clamp 16 clamps the outer wall of the trunk to prevent the seedlings from tilting during rotary digging or moving, thereby ensuring the stability of the seedlings during transplanting, and the soft cushion layer 26 can achieve flexible contact between the clamp 16 and the seedlings to prevent damage to the seedlings; when the roots of the seedlings do not need to carry soil for transplanting, after the seedlings and the root soil are rotary dug, the lifting frame 3 moves up driven by the lifting drive 4 until the bottom of the seedlings is higher than the ground, at which time the ball-flap digging knife 7 rotates to Figure 5In the state shown, the clamp 16 clamps the trunk of the seedling, the motor 18 drives the eccentric transmission member 19 to rotate, and after the transmission is transmitted by the hinged connecting rod 20, the telescopic arm 15 swings around the hinge point, and the hemispherical soil block at the root of the seedling collides with the inner wall of the ball-flap digging knife 7. Under the impact, the soil falls off, and the telescopic drive 17 drives the telescopic arm 15 to shorten gradually, and the seedling gradually approaches the ball-flap digging knife 7. The soil ball at the root of the seedling gradually becomes smaller until the soil at the root of the seedling is completely removed. In this process, the ball-flap digging knife 7 can semi-cover the hemispherical soil block at the root of the seedling to reduce the splashing of soil particles during the collision between the hemispherical soil block and the ball-flap digging knife 7, and ensure that most of the soil falls back into the tree pit, so as to realize automatic cleaning of the soil at the root of the seedling. After the root system of the seedling is exposed, it is convenient to prune the root system. Root pruning can stimulate the development of the root system of the seedling, grow more fibrous roots, and improve the survival rate of the seedling.

[0047] The support frame 21 can limit the telescopic arm 15 to prevent the telescopic arm 15 from excessive rotation. When the seedlings are moved out of the pit or transported, the force on the seedlings is transmitted to the support frame 21 through the clamp 16 and the telescopic arm 15 to avoid excessive force on the swing drive. When the ground where the walker 1 is located is uneven (the front and rear wheels of the walker 1 are not in the same horizontal plane), the frame 2 is in an inclined state. By starting the adjustment cylinder 27, the frame 2 is rotated around the hinge, and the frame 2 can be adjusted to be parallel to the seedlings to ensure smooth rotary excavation of the seedlings.

[0048] Example 3

[0049] The seedling transplanter provided in Example 2 is further optimized. For details, please refer to Figure 1 and Figure 7 , also includes a medicine barrel 22, a pressure pump 23 and a liquid supply pipe 24 fixedly installed on the top of the walker 1, an atomizing nozzle 25 is installed at the clamping part of the clamp 16, the input end of the pressure pump 23 extends into the medicine barrel 22, the output end of the pressure pump 23 is connected with the input end of the liquid supply pipe 24, and the output end of the liquid supply pipe 24 is connected with the input end of the atomizing nozzle 25; further, a soft redundant section is provided on the liquid supply pipe 24 to avoid interference with the lifting of the lifting frame 3.

[0050] The seedling transplanter provided in this embodiment can start the pressure pump 23 to transport the liquid medicine in the medicine barrel 22 to the atomizing nozzle 25 through the liquid supply pipe 24 for spraying. The liquid medicine is sprayed in the form of mist through the atomizing nozzle 25. The sprayed liquid medicine can kill insects and sterilize the exposed roots of the seedlings, providing further guarantee for the subsequent survival of the seedlings.

[0051] The use process of the seedling transplanter provided by the present invention is as follows: the walker 1 moves to the seedlings to be transplanted, the seedlings are located in the L-shaped fork frame 5, the adjustment cylinder 27 drives the frame 2 to rotate to a state parallel to the seedlings, and the lifting frame 3 is driven downward by the lifting drive 4 until the bottom of the L-shaped fork frame 5 contacts the ground, the rotating cylinder 6 drives the ball-flap type digging knife 7 to rotate, and at the same time the reciprocating drive drives the semi-annular tooth saw 8 to reciprocate. During the reciprocating movement of the semi-annular tooth saw 8, the hard soil layer is sawed in a semi-annular seam shape, and the ball-flap type digging knife 7 is quickly fed at the gap cut by the semi-annular tooth saw 8, and the rotating cylinder 6 drives the ball-flap type digging knife 7 as Figure 3 After rotating 180 degrees in the shown state, the ball-flap digging knife 7 is driven to rotate in the opposite direction again until the ball-flap digging knife 7 is located below the hemispherical soil block cut out from the root of the seedling. The lifting drive 4 drives the lifting frame 3 to move upward, and the seedlings and the soil at the roots are dug out as a whole. The walker 1 drives the seedlings to move to the transplanting site for planting.

[0052] In the invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrated; it can be mechanically connected, electrically connected, or able to communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

Claims

1. A seedling transplanter, characterized in that: The invention comprises a walking device (1), a frame (2) mounted on the walking device (1), a lifting frame (3) mounted on the frame (2) in an up-and-down sliding manner, a lifting driver (4) mounted on the frame (2) and providing power for the lifting frame (3) to move up and down, an L-shaped fork frame (5) mounted on the lifting frame (3), and a rotary drilling mechanism mounted on the L-shaped fork frame (5), wherein the rotary drilling mechanism comprises two rotating cylinders (6) fixedly mounted on the L-shaped fork frame (5), a ball-shaped digging cutter (7) fixedly mounted between the two rotating cylinders (6), a semi-circular tooth saw (8) being rotatably mounted on the ball-shaped digging cutter (7), and a reciprocating driver providing power for the semi-circular tooth saw (8) to rotate in the forward and reverse directions.

2. The seedling transplanter according to claim 1, characterized in that: The reciprocating drive comprises a mounting seat (9) fixedly mounted at the connection between the ball-flap digging cutter (7) and the rotary cylinder (6), two mutually meshing gears (10) rotatably mounted on the mounting seat (9), a first sector-shaped toothed disc (11) fixedly mounted on one of the gears (10), a second sector-shaped toothed disc (12) fixedly mounted on the other gear (10), and a rotator (13) providing power for the rotation of one group of gears (10), the semi-annular toothed saw (8) is provided with teeth (14) meshing with the first sector-shaped toothed disc (11) or the second sector-shaped toothed disc (12), and the teeth on the first sector-shaped toothed disc (11) and the second sector-shaped toothed disc (12) face in opposite directions.

3. The seedling transplanter according to claim 2, characterized in that: A telescopic arm (15) is installed on the lifting frame (3), a clamp (16) is fixedly installed on the end of the telescopic arm (15), and a telescopic drive (17) is installed on the telescopic arm (15) to provide power for the extension of the telescopic arm (15).

4. The seedling transplanter according to claim 3, characterized in that: The telescopic arm (15) is hingedly mounted on a lifting frame (3); a slewing drive for providing power for the telescopic arm (15) to swing around a hinge point is mounted on the lifting frame (3); the slewing drive comprises a motor (18) fixedly mounted on the lifting frame (3), an eccentric transmission member (19) fixedly mounted on the motor (18), and a hinged connecting rod (20); one end of the hinged connecting rod (20) is rotatably connected to the eccentric transmission member (19), and the other end of the hinged connecting rod (20) is hingedly connected to the telescopic arm (15).

5. The seedling transplanter according to claim 4, characterized in that: A support frame (21) is fixedly mounted on the lifting frame (3), and the support frame (21) is used to limit the bottom of the telescopic arm (15).

6. The seedling transplanter according to claim 3, characterized in that: It also includes a medicine-containing barrel (22), a pressure pump (23) and a liquid supply pipe (24) fixedly mounted on the top of the walker (1); an atomizing nozzle (25) is installed at the clamping portion of the clamp (16); the input end of the pressure pump (23) extends into the medicine-containing barrel (22); the output end of the pressure pump (23) is connected to the input end of the liquid supply pipe (24); and the output end of the liquid supply pipe (24) is connected to the input end of the atomizing nozzle (25).

7. The seedling transplanter according to claim 3, characterized in that: A soft cushion layer (26) is provided at the clamping portion of the clamp (16).

8. The seedling transplanter according to claim 3, characterized in that: The bottom of the frame (2) is hingedly mounted on the walking device (1), an adjustment cylinder (27) is hingedly mounted on the walking device (1), and the movable end of the adjustment cylinder (27) is hingedly mounted on the middle of the frame (2).

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