A seedling transplanting device for planting centella asiatica

Abstract

The application discloses a seedling transplanting device for planting centella asiatica, which comprises a shell, a chute is formed in the shell, a supporting column is slidably connected to the shell through the chute, a hollow cavity for placing the centella asiatica is formed in the supporting column, four draw bars are hingedly connected to the supporting column through pin shafts, a digging claw is fixedly connected to each draw bar, an inclined surface is formed in the lower surface of the shell, an inclined surface is formed in the upper surface of the draw bar, the inclined surface on the draw bar is in abutment with the inclined surface on the shell, and a limiting mechanism for controlling the sliding of the shell relative to the supporting column is arranged on the supporting column. Through the cooperation of the overall structure, when the digging is completed, the four digging claws move to the direction of transplanting the centella asiatica seedlings, thereby compacting the soil of the centella asiatica seedlings, the opening under the soil of the transplanted centella asiatica seedlings gradually becomes smaller, the loss of the soil is avoided, the soil amount for transplanting the centella asiatica seedlings is ensured to be sufficient, and the effect that the transplanted centella asiatica seedlings are not easy to fall off is achieved.

Description

Technical Field

[0001] This invention relates to the field of transplanting device technology, specifically a transplanting device for planting Centella asiatica. Background Technology

[0002] Centella asiatica, also known as Hundred Milk Grass, Fine-Beard Grass, and Green Dragon Grass, is a plant that can be used medicinally. It has the effects of clearing heat and detoxifying, tonifying the kidneys and astringing essence, and can treat heatstroke, acute mastitis, pneumonia, tonsillitis, and other ailments. Centella asiatica is widely distributed throughout my country, often growing in sandy grasslands or along rocky edges. It prefers a sunny, warm, and humid environment, but can tolerate some drought. When planting, choose a well-drained, high-lying plot of land. For high yields, fertile and loose soil is recommended; poor soil will affect the quantity and quality of its flowers.

[0003] A transplanting device for field planting of *Centella asiatica* (Chinese Patent Publication No. CN216087590U) includes a claw, a transplanting tube, and a limiting tube. A second handle is connected to the upper center of the transplanting tube via a second connecting rod. The limiting tube is slidably installed inside the transplanting tube. A first handle is located above the second handle and is connected to the limiting tube via a first connecting rod. A vertically extending, removable groove is formed in the middle of the second connecting rod, and the first connecting rod is removably installed inside the removable groove. The claw is rotatably installed inside the lower end of the transplanting tube. This invention uses the transplanting tube inserted into the soil, with the limiting tube preventing the seedling from being squeezed. The transplanting operation is completed by lifting the transplanting tube. Transplanting is convenient and quick, preventing damage to the seedling roots. Simultaneously, the claw at the bottom of the transplanting tube embeds itself in the soil during transplanting, supporting the bottom and preventing soil fragments inside the transplanting tube from breaking and damaging the seedling roots.

[0004] However, when transplanting *Gnaphalium affine* seedlings, the aforementioned device, while providing support to the bottom of the soil with its claws, makes the soil relatively loose when the claws are embedded in it. As a result, the soil may slip when the seedlings are pulled upwards, causing damage to the seedling roots. Therefore, we need a seedling transplanting device for *Gnaphalium affine* planting to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a transplanting device for planting Centella asiatica, which has the advantage of compacting the soil around the roots of the Centella asiatica seedlings to be transplanted, thus solving the problem that the soil around the roots of the Centella asiatica seedlings is easy to fall off.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A transplanting device for planting centella asiatica includes a shell, a sliding groove on the shell and a support column slidably connected through the sliding groove, a hollow cavity for placing centella asiatica on the support column, four helical rods hinged to the support column by pins, each helical rod being fixedly connected to a digging claw, an inclined surface on the lower surface of the shell, an inclined surface on the upper surface of each helical rod, the inclined surface on the helical rod abutting against the inclined surface on the shell, and a limiting mechanism on the support column for controlling the sliding of the shell relative to the support column.

[0007] Preferably, the limiting mechanism includes a support plate fixedly connected to a support column, a sliding rod slidably connected to the support plate through a sliding groove, a first circular block for contacting the ground fixedly connected to the sliding rod, an inclined sliding groove on the sliding rod, a first limiting rod slidably connected to the inclined sliding groove, and a first baffle fixedly connected to the first limiting rod.

[0008] Preferably, the limiting mechanism further includes a limiting groove formed on the support column, the limiting groove being slidably connected to a first limiting rod penetrating the housing, a first spring being sleeved on the first limiting rod, and the two ends of the first spring being fixedly connected to the first baffle and the housing, respectively.

[0009] Preferably, the limiting mechanism further includes a second limiting rod and a fifth spring. A sliding groove is provided on the housing. The sliding groove is slidably connected to the second limiting rod. The second limiting rod cooperates with the limiting groove. A second baffle is fixedly connected to the second limiting rod. The fifth spring is sleeved on the second limiting rod. The two ends of the fifth spring are fixedly connected to the second baffle and the sliding groove, respectively.

[0010] Preferably, two second springs are fixedly connected to the support column, and the end of each second spring away from the support column is fixedly connected to the housing.

[0011] Preferably, four third springs are fixedly connected to the support column, and the end of each third spring away from the support column is fixedly connected to the helical rod.

[0012] Preferably, the housing is provided with a piston mechanism for injecting nutrient solution into the soil to improve the survival rate of *Gnaphalium affine*. The piston mechanism includes a connecting plate fixedly connected to the housing, a piston cylinder fixedly connected to the connecting plate, a sealing plug slidably connected to the piston cylinder, a piston rod fixedly connected to the sealing plug, a second circular block for contacting the ground fixedly connected to the piston rod, and a fourth spring sleeved on the piston rod. The two ends of the fourth spring are fixedly connected to the sealing plug and the piston cylinder, respectively.

[0013] Preferably, the piston mechanism further includes an inlet pipe and a outlet pipe. The piston cylinder is fixedly connected to an external liquid supply mechanism through the inlet pipe. The end of the piston cylinder away from the inlet pipe is fixedly connected to the outlet pipe. The outlet pipe passes through the winch. A one-way valve is fixedly connected to both the inlet pipe and the outlet pipe.

[0014] Preferably, the position of the first circular block is lower than the lower surface of the support column.

[0015] Preferably, the second circular block is positioned below the lower surface of the digging claw.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. Through the coordination of the overall structure, this invention achieves the effect that when the soil is dug, the four digging claws 22 move towards the direction of transplanting the centella asiatica seedlings, thereby compacting the soil around the centella asiatica seedlings. The opening under the soil of the transplanted centella asiatica seedlings gradually becomes smaller, avoiding soil loss and ensuring that the amount of soil for transplanting the centella asiatica seedlings is sufficient and that they are not easy to fall off.

[0018] 2. By setting a second limiting rod, the present invention achieves the effect that when the device is moved upward manually, the four winches and four digging claws remain in the retracted state, so that the four digging claws will not reset when the device is moved upward, resulting in a large loss of soil for transplanting the centella asiatica seedlings and the centella asiatica seedlings may slide down simultaneously, causing damage to the centella asiatica seedlings.

[0019] 3. By setting up a piston mechanism, the present invention enables the nutrient solution in the piston cylinder to be delivered to the inner side of the four winches through the drainage pipe. As a result, the nutrient solution slides downward along the inner side of the winches, which moistens the soil near the seedlings to be transplanted. This facilitates the downward movement of the digging claws. At the same time, the seedlings are less likely to lack nutrients after transplanting, thus reducing the risk of death during transportation and improving the survival rate of the seedlings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the limiting mechanism of the present invention;

[0023] Figure 4 This is a cross-sectional structural diagram of the shell and support column of the present invention;

[0024] Figure 5 This is a cross-sectional structural diagram of the limiting mechanism of the present invention;

[0025] Figure 6 This is a cross-sectional structural diagram of the piston mechanism of the present invention.

[0026] In the diagram: 1. Shell; 11. Second spring; 12. Hollow cavity; 2. Support column; 21. Winch; 22. Digging claw; 23. Third spring; 3. Sliding rod; 31. First circular block; 32. First limiting rod; 33. Inclined slide groove; 34. First spring; 35. Support plate; 36. Limiting groove; 37. First baffle; 4. Second limiting rod; 41. Second baffle; 42. Fifth spring; 43. Sliding groove; 5. Piston cylinder; 51. Connecting plate; 52. Piston rod; 53. Second circular block; 54. Sealing plug; 55. Fourth spring; 56. Inlet pipe; 57. One-way valve; 58. Drain pipe. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1

[0029] This invention provides a technical solution: a transplanting device for planting centella asiatica, comprising a housing 1, a sliding groove on the housing 1 and a support column 2 slidably connected through the sliding groove, a hollow cavity 12 for placing centella asiatica on the support column 2, four helical rods 21 hinged to the support column 2 by pins, each helical rod 21 being fixedly connected to a digging claw 22, a slope on the lower surface of the housing 1, a slope on the upper surface of the helical rods 21, the slope on the helical rods 21 abutting against the slope on the housing 1, and a limiting mechanism on the support column 2 for controlling the sliding of the housing 1 relative to the support column 2.

[0030] When using the device, first determine the location of the *Centella asiatica* seedling to be transplanted, then place your hand on the handle and move the device directly above the seedling, with the hollow cavity 12 of the device located at the exact center of the seedling.

[0031] The handle is an existing mechanism and is therefore not shown in the diagram. Furthermore, the relevant technology of the handle is relatively mature and well known to those skilled in the art, so it will not be described in detail here.

[0032] The limiting mechanism includes a support plate 35 fixedly connected to the support column 2. The support plate 35 has a sliding groove and a sliding rod 3 is slidably connected through the sliding groove. A first round block 31 for contacting the ground is fixedly connected to the sliding rod 3. An inclined sliding groove 33 is provided on the sliding rod 3. A first limiting rod 32 is slidably connected to the inclined sliding groove 33. A first baffle 37 is fixedly connected to the first limiting rod 32.

[0033] The limiting mechanism also includes a limiting groove 36 opened on the support column 2. The limiting groove 36 is slidably connected to the first limiting rod 32 that penetrates the housing 1. A first spring 34 is sleeved on the first limiting rod 32. The two ends of the first spring 34 are fixedly connected to the first baffle 37 and the housing 1, respectively.

[0034] The limiting mechanism also includes a second limiting rod 4 and a fifth spring 42. A sliding groove 43 is provided on the housing 1. The sliding groove 43 is slidably connected to the second limiting rod 4. The second limiting rod 4 cooperates with the limiting groove 36. A second baffle 41 is fixedly connected to the second limiting rod 4. The fifth spring 42 is sleeved on the second limiting rod 4. The two ends of the fifth spring 42 are fixedly connected to the second baffle 41 and the sliding groove 43, respectively.

[0035] Two second springs 11 are fixedly connected to the support column 2, and the end of each second spring 11 away from the support column 2 is fixedly connected to the housing 1.

[0036] Four third springs 23 are fixedly connected to the support column 2, and the end of each third spring 23 away from the support column 2 is fixedly connected to the helical rod 21.

[0037] The device is then manually moved downwards until the four digging claws 22 enter the soil. Because the inclined surface of the winch 21 abuts against the inclined surface of the housing 1 and the limiting mechanism limits it, the housing 1 and the support column 2 slide downwards synchronously. Thus, the winch 21 will not rotate around the pin, and the digging claws 22 can continue to slide down into the soil.

[0038] As it continues to slide downwards, the first circular block 31 comes into contact with the soil. Because the support plate 35 has a groove that is slidably connected to the sliding rod 3, the first circular block 31 and the sliding rod 3 remain stationary. The support column 2 and the housing 1 continue to slide downwards, so the first limiting rod 32 on the housing 1 slides downwards synchronously. Because the first limiting rod 32 is slidably connected to the inclined groove 33 on the sliding rod 3, the first limiting rod 32 slides downwards, passing through the inclined surface of the inclined groove 33. The elastic force of the first spring 34 is gradually released along with the inclined surface, so that the first limiting rod 32 always abuts against the inclined surface of the inclined groove 33.

[0039] When the support column 2 comes into contact with the soil, the first limiting rod 32 slides along the inclined surface and just slides out of the limiting groove 36 on the support column 2, thereby releasing the locking state between the support column 2 and the shell 1, so that the support column 2 does not move, while the shell 1 continues to slide downward. Since the inclined surface of the shell 1 abuts against the inclined surface of the winch 21, the winch 21 rotates around the pin shaft as the center, and the four winches 21 rotate in opposite directions. As a result, the four digging claws 22 on them rotate in opposite directions synchronously with the winches 21. Thus, the four winches 21 and the four digging claws 22 gradually approach each other, thereby compacting the soil of the centella asiatica seedling to be transplanted, and the opening below gradually becomes smaller, ensuring that there is enough soil for transplanting the centella asiatica seedling and that it is not easy for it to fall off.

[0040] After the four winches 21 and four digging claws 22 gradually approach each other, the elastic force of the fifth spring 42 is released, allowing the second limiting rod 4 to slide into the limiting groove 36 on the housing 1, thereby limiting the housing 1 and the support column 2 again. Then, the device is moved upward manually, and the transplanted centella asiatica seedlings slide upward synchronously.

[0041] By limiting the second limiting rod 4, the four winches 21 and the four digging claws 22 remain in a retracted state when the device is moved upward manually. This prevents the four digging claws 22 from resetting when the device is moved upward, thus avoiding the loss of a large amount of soil from the transplanted centella asiatica seedlings and the possibility of the centella asiatica seedlings sliding down simultaneously, which could damage the seedlings.

[0042] The device is then removed and moved to the location where the *Centella asiatica* seedlings are placed. The second limiting rod 4 is manually pulled away from the housing 1, causing it to slide out of the limiting groove 36. This releases the elastic force of the second spring 11, allowing the housing 1 to slide upwards. Simultaneously, the elastic force of the third spring 23 is released, ensuring that the inclined surface of the winch 21 remains in contact with the inclined surface of the housing 1. This resets the four winches 21 and the four digging claws 22, resulting in the transplanted *Centella asiatica* seedlings falling to the location where they are placed.

[0043] Furthermore, when the device is taken out, the sliding rod 3 slides down along the groove on the support plate 35, and then when the housing 1 slides up, the first limiting rod 32 slides into the limiting groove 36, thereby achieving the effect of facilitating the next use.

[0044] With the cooperation of the four digging claws 22 and the limiting mechanism, when the digging is completed, the four digging claws 22 move towards the direction of transplanting the centella asiatica seedlings, thereby compacting the soil around the centella asiatica seedlings. The opening under the soil of the transplanted centella asiatica seedlings gradually becomes smaller, avoiding soil loss and ensuring that the amount of soil for transplanting the centella asiatica seedlings is sufficient and that they are not easy to fall off.

[0045] The position of the first circular block 31 is lower than the lower surface of the support column 2.

[0046] By setting the position of the first circular block 31 below the lower surface of the support column 2, the first circular block 31 contacts the soil first, thereby allowing the first limiting rod 32 to slide out of the limiting groove 36.

[0047] Example 2

[0048] Similar to Embodiment 1, but further: the housing 1 is provided with a piston mechanism for injecting nutrient solution into the soil to improve the survival rate of *Gnaphalium affine*. The piston mechanism includes a connecting plate 51 fixedly connected to the housing 1, a piston cylinder 5 fixedly connected to the connecting plate 51, a sealing plug 54 slidably connected to the piston cylinder 5, a piston rod 52 fixedly connected to the sealing plug 54, a second round block 53 for contacting the ground fixedly connected to the piston rod 52, and a fourth spring 55 sleeved on the piston rod 52. The two ends of the fourth spring 55 are fixedly connected to the sealing plug 54 and the piston cylinder 5, respectively.

[0049] The piston mechanism also includes an inlet pipe 56 and a outlet pipe 58. The piston cylinder 5 is fixedly connected to an external liquid supply mechanism through the inlet pipe 56. The end of the piston cylinder 5 away from the inlet pipe 56 is fixedly connected to the outlet pipe 58. The outlet pipe 58 passes through the winch 21. A one-way valve 57 is fixedly connected to both the inlet pipe 56 and the outlet pipe 58.

[0050] When the device is moved downwards manually, the second circular block 53 first contacts the soil. Then, as it moves downwards, the piston rod 52 and the sealing plug 54 slide along the piston cylinder 5 towards one end of the liquid inlet pipe 56. When the device is moved upwards after transplanting is completed, the elastic force of the fourth spring 55 is released, causing the piston rod 52 and the sealing plug 54 to slide along the piston cylinder 5 towards the end away from the liquid inlet pipe 56, thereby causing the pressure inside the piston cylinder 5 to change back and forth.

[0051] When the piston rod 52 and sealing plug 54 slide away from the inlet pipe 56 inside the piston cylinder 5, a negative pressure is generated with the cooperation of the one-way valve 57. This draws the nutrient solution from the external supply mechanism into the piston cylinder 5 through the inlet pipe 56. When the piston rod 52 and sealing plug 54 slide closer to the inlet pipe 56 inside the piston cylinder 5, a high pressure is generated with the cooperation of the one-way valve 57. This causes the nutrient solution in the piston cylinder 5 to be transported to the inner side of the four winches 21 through the drain pipe 58. The nutrient solution slides downward along the inner side of the winches 21, thus wetting the soil near the seedlings to be transplanted. This facilitates the downward movement of the digging claw 22. At the same time, the seedlings are less likely to lack nutrients after transplanting, thus reducing the risk of death during transportation and improving the survival rate of the seedlings.

[0052] The position of the second circular block 53 is lower than the lower surface of the digging claw 22.

[0053] By setting the position of the second circular block 53 below the lower surface of the digging claw 22, the nutrient solution initially moistens the soil before the digging claw 22 comes into contact with it, thus facilitating the downward movement of the digging claw 22.

[0054] Working principle: This is a transplanting device for planting centipede. When using it, first determine the position of the centipede seedling to be transplanted, then place your hand on the handle and move the device to be directly above the centipede seedling to be transplanted, and the hollow cavity 12 of the device is located in the exact center of the centipede seedling to be transplanted.

[0055] The handle is an existing mechanism and is therefore not shown in the diagram. Furthermore, the relevant technology of the handle is relatively mature and well known to those skilled in the art, so it will not be described in detail here.

[0056] The device is then manually moved downwards until the four digging claws 22 enter the soil. Because the inclined surface of the winch 21 abuts against the inclined surface of the housing 1 and the limiting mechanism limits it, the housing 1 and the support column 2 slide downwards synchronously. Thus, the winch 21 will not rotate around the pin, and the digging claws 22 can continue to slide down into the soil.

[0057] As it continues to slide downwards, the first circular block 31 comes into contact with the soil. Because the support plate 35 has a groove that is slidably connected to the sliding rod 3, the first circular block 31 and the sliding rod 3 remain stationary. The support column 2 and the housing 1 continue to slide downwards, so the first limiting rod 32 on the housing 1 slides downwards synchronously. Because the first limiting rod 32 is slidably connected to the inclined groove 33 on the sliding rod 3, the first limiting rod 32 slides downwards, passing through the inclined surface of the inclined groove 33. The elastic force of the first spring 34 is gradually released along with the inclined surface, so that the first limiting rod 32 always abuts against the inclined surface of the inclined groove 33.

[0058] When the support column 2 comes into contact with the soil, the first limiting rod 32 slides along the inclined surface and just slides out of the limiting groove 36 on the support column 2, thereby releasing the locking state between the support column 2 and the shell 1, so that the support column 2 does not move, while the shell 1 continues to slide downward. Since the inclined surface of the shell 1 abuts against the inclined surface of the winch 21, the winch 21 rotates around the pin shaft as the center, and the four winches 21 rotate in opposite directions. As a result, the four digging claws 22 on them rotate in opposite directions synchronously with the winches 21. Thus, the four winches 21 and the four digging claws 22 gradually approach each other, thereby compacting the soil of the centella asiatica seedling to be transplanted, and the opening below gradually becomes smaller, ensuring that there is enough soil for transplanting the centella asiatica seedling and that it is not easy for it to fall off.

[0059] After the four winches 21 and four digging claws 22 gradually approach each other, the elastic force of the fifth spring 42 is released, allowing the second limiting rod 4 to slide into the limiting groove 36 on the housing 1, thereby limiting the housing 1 and the support column 2 again. Then, the device is moved upward manually, and the transplanted centella asiatica seedlings slide upward synchronously.

[0060] By limiting the second limiting rod 4, the four winches 21 and the four digging claws 22 remain in a retracted state when the device is moved upward manually. This prevents the four digging claws 22 from resetting when the device is moved upward, thus avoiding the loss of a large amount of soil from the transplanted centella asiatica seedlings and the possibility of the centella asiatica seedlings sliding down simultaneously, which could damage the seedlings.

[0061] The device is then removed and moved to the location where the *Centella asiatica* seedlings are placed. The second limiting rod 4 is manually pulled away from the housing 1, causing it to slide out of the limiting groove 36. This releases the elastic force of the second spring 11, allowing the housing 1 to slide upwards. Simultaneously, the elastic force of the third spring 23 is released, ensuring that the inclined surface of the winch 21 remains in contact with the inclined surface of the housing 1. This resets the four winches 21 and the four digging claws 22, resulting in the transplanted *Centella asiatica* seedlings falling to the location where they are placed.

[0062] Furthermore, when the device is taken out, the sliding rod 3 slides down along the groove on the support plate 35, and then when the housing 1 slides up, the first limiting rod 32 slides into the limiting groove 36, thereby achieving the effect of facilitating the next use.

[0063] With the cooperation of the four digging claws 22 and the limiting mechanism, when the digging is completed, the four digging claws 22 move towards the direction of transplanting the centella asiatica seedlings, thereby compacting the soil around the centella asiatica seedlings. The opening under the soil of the transplanted centella asiatica seedlings gradually becomes smaller, avoiding soil loss and ensuring that the amount of soil for transplanting the centella asiatica seedlings is sufficient and that they are not easy to fall off.

[0064] When the device is manually moved downwards, the second circular block 53 first contacts the soil. Subsequently, during downward movement, the piston rod 52 and the sealing plug 54 slide along the piston cylinder 5 towards one end of the inlet pipe 56. When the device is moved upwards after transplanting, the elastic force of the fourth spring 55 is released, causing the piston rod 52 and the sealing plug 54 to slide along the piston cylinder 5 towards the end away from the inlet pipe 56. This causes the pressure inside the piston cylinder 5 to change back and forth, as detailed below:

[0065] In the above text, when the piston rod 52 and the sealing plug 54 slide away from the inlet pipe 56 inside the piston cylinder 5, a negative pressure is generated with the cooperation of the one-way valve 57. This draws the nutrient solution from the external supply mechanism into the piston cylinder 5 through the inlet pipe 56. When the piston rod 52 and the sealing plug 54 slide closer to the inlet pipe 56 inside the piston cylinder 5, a high pressure is generated with the cooperation of the one-way valve 57. This causes the nutrient solution in the piston cylinder 5 to be transported to the inner side of the four winches 21 through the drain pipe 58. As a result, the nutrient solution slides downward along the inner side of the winches 21, thus wetting the soil near the seedlings to be transplanted. This facilitates the downward movement of the digging claw 22. At the same time, the seedlings are less likely to lack nutrients after transplanting, thus reducing the risk of death during transportation and improving the survival rate of the seedlings.

[0066] 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 transplanting device for planting Centella asiatica, comprising a housing (1), characterized in that: The shell (1) has a sliding groove and a support column (2) is slidably connected through the sliding groove. The support column (2) has a hollow cavity (12) for placing the centella asiatica. The support column (2) has four helical rods (21) hinged by pins. Each helical rod (21) is fixedly connected to a digging claw (22). The lower surface of the shell (1) has an inclined surface. The upper surface of the helical rod (21) has an inclined surface. The inclined surface on the helical rod (21) abuts against the inclined surface on the shell (1). The support column (2) has a limiting mechanism for controlling the sliding of the shell (1) relative to the support column (2). The limiting mechanism includes a support plate (35) fixedly connected to the support column (2), a sliding rod (3) is slidably connected to the support plate (35) through a sliding groove, a first round block (31) for contacting the ground is fixedly connected to the sliding rod (3), an inclined sliding groove (33) is provided on the sliding rod (3), a first limiting rod (32) is slidably connected to the inclined sliding groove (33), and a first baffle (37) is fixedly connected to the first limiting rod (32). The limiting mechanism also includes a limiting groove (36) opened on the support column (2), the limiting groove (36) is slidably connected to a first limiting rod (32) penetrating the shell (1), a first spring (34) is sleeved on the first limiting rod (32), and the two ends of the first spring (34) are fixedly connected to the first baffle (37) and the shell (1) respectively. The limiting mechanism also includes a second limiting rod (4) and a fifth spring (42). A sliding groove (43) is provided on the housing (1). The sliding groove (43) is slidably connected to the second limiting rod (4). The second limiting rod (4) cooperates with the limiting groove (36). A second baffle (41) is fixedly connected to the second limiting rod (4). The fifth spring (42) is sleeved on the second limiting rod (4). The two ends of the fifth spring (42) are fixedly connected to the second baffle (41) and the sliding groove (43) respectively.

2. The transplanting device according to claim 1, characterized in that: Two second springs (11) are fixedly connected to the support column (2), and the end of each second spring (11) away from the support column (2) is fixedly connected to the shell (1).

3. The transplanting device according to claim 1, characterized in that: Four third springs (23) are fixedly connected to the support column (2), and the end of each third spring (23) away from the support column (2) is fixedly connected to the helical rod (21).

4. The transplanting device according to claim 1, characterized in that: The housing (1) is provided with a piston mechanism for injecting nutrient solution into the soil to improve the survival rate of the grass. The piston mechanism includes a connecting plate (51) fixedly connected to the housing (1), a piston cylinder (5) fixedly connected to the connecting plate (51), a sealing plug (54) slidably connected to the piston cylinder (5), a piston rod (52) fixedly connected to the sealing plug (54), a second round block (53) for contacting the ground fixedly connected to the piston rod (52), and a fourth spring (55) sleeved on the piston rod (52). The two ends of the fourth spring (55) are fixedly connected to the sealing plug (54) and the piston cylinder (5) respectively.

5. The transplanting device according to claim 4, characterized in that: The piston mechanism also includes an inlet pipe (56) and a drain pipe (58). The piston cylinder (5) is fixedly connected to an external liquid supply mechanism through the inlet pipe (56). The end of the piston cylinder (5) away from the inlet pipe (56) is fixedly connected to the drain pipe (58). The drain pipe (58) passes through the winch (21). A one-way valve (57) is fixedly connected to both the inlet pipe (56) and the drain pipe (58).

6. The transplanting device according to claim 4, characterized in that: The second circular block (53) is positioned below the lower surface of the digging claw (22).

7. The transplanting device according to claim 1, characterized in that: The first circular block (31) is positioned below the lower surface of the support column (2) to ensure that the first circular block (31) contacts the ground before the support column (2) during the downward movement of the transplanting device, thereby causing the sliding rod (3) to stop moving relative to the support column (2) and triggering the first limiting rod (32) to move along the inclined slide groove (33) and separate from the limiting groove (36).

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