Seedling lifting device for forestry planting
By designing seedling shovels, fixed blocks, rotating shafts, lifting blocks and linkage mechanisms in the seedlings for forestry planting, the seedling shovels can be closely fit when excavating seedlings, which solves the problem of seedlings falling due to the inability to close close in the existing device, and improves the practicality of the device and the survival rate of seedlings.
Patent Information
- Application Number
- CN202422055666.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The seedling shovel of the existing seedling lifting device for forestry planting is a lifting movement. After the seedling shovel is dug out, the multiple seedling shovels cannot be closed closely, resulting in the excavated seedlings easily falling from the gap between the seedling shovels, which is poor in practicality.
A seedling lifting device for forestry planting is designed. Through the coordination of the seedling shovel, the first fixed block, the first rotating shaft, the second fixed block, the lifting block, the elastic mechanism and the linkage mechanism, the seedling shovel can be closely fit when the seedlings are dug out to prevent the seedlings from falling.
The seedling shovel can be closed tightly after the seedlings are dug out, avoiding the seedlings falling, and improving the practicality of the device and the survival rate of the seedlings.
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Figure CN222916738U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of seedling lifting devices, in particular to a seedling lifting device for forestry planting. Background Technique
[0002] With the accelerating development of ecological civilization construction, afforestation projects and vegetation restoration operations are becoming increasingly important. As an essential link in seedling planting, the technology of seedling lifting is constantly progressing. At present, manual seedling lifting is mainly used in China, which has the problems of high labor intensity, many repetitive operations, low efficiency, serious root damage, and poor growth and low survival rate of transplanted seedlings. Although some seedling lifters have been put into use, due to the lack of root protection, the survival rate of seedlings has not been significantly improved.
[0003] The utility model patent with the publication number of CN219537032U discloses a seedling lifting device for forestry planting, belonging to the technical field of seedling lifting devices, aiming to solve the problem that in the prior art, when carrying out seedling lifting operations, it is usually necessary for manual labor to dig the roots of seedlings, which takes a long time and is time-consuming and laborious. It includes an inner sleeve, the lower end of the inner sleeve is fixedly provided with a guide disk, the upper end of the inner sleeve is fixedly provided with a handle, and a seedling lifting assembly is slidably arranged in the middle of the inner sleeve. In this utility model, by stepping on the pedal, and then through the mutual cooperation of the guide disk, outer sleeve, seedling lifting rod, guide block, and seedling shovel, when the seedlings are dug out, several seedling shovels gather at the roots of the seedlings, eliminating the need for manual repeated digging of the roots of the seedlings, saving the digging time, and being time-saving and laborious.
[0004] However, the above patent still has deficiencies: Although this patent can dig out the seedlings, since the seedling shovels of the existing seedling lifting devices for forestry planting move up and down, after the seedling shovels dig out the seedlings, the multiple seedling shovels cannot be tightly closed, resulting in the dug-out seedlings being prone to falling from the gaps between the seedling shovels when the user lifts the seedlings, and the practicability is poor. Content of the Utility Model
[0005] In order to make up for the above deficiencies, the utility model provides a seedling lifting device for forestry planting to solve the problem that in the above background technique, since the seedling shovels of the existing seedling lifting devices for forestry planting move up and down, after the seedling shovels dig out the seedlings, the multiple seedling shovels cannot be tightly closed, resulting in the dug-out seedlings being prone to falling from the gaps between the seedling shovels when the user lifts the seedlings, and the practicability is poor.
[0006] The technical solution of the utility model is as follows:
[0007] A seedling lifting device for forestry planting, comprising: a seedling lifting cylinder; seedling shovels are arranged on both sides of the bottom of the seedling lifting cylinder, two first fixing blocks are fixedly connected to both sides of the top of each seedling shovel, the two first fixing blocks are fixedly connected through a first rotating shaft, a second fixing block is rotatably connected to the outer surface of each first rotating shaft, and each second fixing block is fixedly connected to the seedling lifting cylinder; lifting blocks are arranged on both sides of the seedling lifting cylinder; a elastic mechanism for controlling the lifting of the lifting blocks is arranged at the top of the seedling lifting cylinder; a linkage mechanism for controlling the synchronous rotation of the seedling shovels around the first rotating shaft is arranged at the bottom of the lifting blocks; a material discharging mechanism for preventing material jamming is arranged inside the seedling lifting cylinder.
[0008] Preferably, the elastic mechanism comprises: sliding rods are fixedly connected to the tops of the lifting blocks, fixed cylinders are fixedly connected to the seedling lifting cylinder near the sliding rods, the top ends of the sliding rods penetrate through the fixed cylinders and fixed handles and extend to the pressing rods, and the top ends of the two sliding rods are fixedly connected to the pressing rods; the sliding rods are slidably connected to the fixed cylinders and the fixed handles, the two fixed handles are fixedly connected to the seedling lifting cylinder, first springs are arranged between the pressing rods and the fixed handles, the first springs are respectively sleeved on the outer surfaces of the sliding rods, first silica gel sleeves are sleeved on the outer surfaces of both ends of the pressing rods, the first silica gel sleeves are adapted to the pressing rods, and second silica gel sleeves are sleeved on the outer surfaces of the fixed handles, and the second silica gel sleeves are adapted to the fixed handles.
[0009] Preferably, sliding sleeves are fixedly connected to the fixed handles near the sliding rods, and the sliding sleeves are respectively fixedly connected to the fixed handles.
[0010] Preferably, rubber pads are arranged between the fixed cylinders and the lifting blocks, and the rubber pads are respectively fixedly connected to the sliding rods.
[0011] Preferably, the linkage mechanism comprises: two third fixing blocks are fixedly connected to the bottoms of the lifting blocks, the two third fixing blocks are fixedly connected through a second rotating shaft, and linkage rods are rotatably connected to the outer surfaces of the middle parts of the second rotating shafts; the bottom ends of the linkage rods are rotatably connected to third rotating shafts, and fourth fixing blocks are fixedly connected to both ends of each third rotating shaft, and the fourth fixing blocks are respectively fixedly connected to the seedling shovels.
[0012] Preferably, a stepping frame is fixedly connected to one side of the bottom of the seedling lifting cylinder, and two structural rods are fixedly connected to the inside of the stepping frame.
[0013] Preferably, the material discharging mechanism includes: a material discharging plate is arranged inside the seedling lifting cylinder, a slotted opening is formed at the center of the material discharging plate, both sides of the top of the material discharging plate are fixedly connected with material discharging rods, the tops of the material discharging rods penetrate through the seedling lifting cylinder and the pressing rod and extend to the auxiliary rod, the auxiliary rod is fixedly connected with the material discharging rods, and the material discharging rods are slidably connected with the seedling lifting cylinder and the pressing rod; two second springs are arranged between the auxiliary rod and the pressing rod, the second springs are respectively sleeved on the outer surface of the material discharging rods, and a limiting ring is fixedly connected to the seedling lifting cylinder near the material discharging plate.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] Firstly, through the cooperation of the seedling lifting shovel, the first fixing block, the first rotating shaft, the second fixing block, the lifting block, the elastic mechanism and the linkage mechanism of the present utility model, the seedling lifting shovel can be inserted into the soil to dig out the seedlings, and while the seedlings are being dug out by the seedling lifting shovel, the two seedling lifting shovels are closely attached to each other, avoiding the situation that the dug-out seedlings fall from the inside of the device, and solving the problem that the seedling lifting shovels of the existing seedling lifting device for forestry planting perform a lifting motion, and after the seedlings are dug out by the seedling lifting shovels, multiple seedling lifting shovels cannot be closely closed, resulting in the dug-out seedlings being easily dropped from the gaps between the seedling lifting shovels during seedling lifting by the user, and the practicability is poor.
[0016] Secondly, through the cooperation of the seedling lifting shovel, the first fixing block, the first rotating shaft, the second fixing block, the lifting block and the material discharging mechanism of the present utility model, when the dug-out seedlings and soil are stuck inside the device, the user can control the device to push out the seedlings and soil stuck inside the device, solving the problem that the original seedling lifting device for forestry planting does not have a material discharging function, resulting in the need for the user to use tools to take out the seedlings when the dug-out seedlings and soil are stuck inside the device. Description of the Drawings
[0017] Figure 1 is a three-dimensional structural schematic diagram of a seedling lifting device for forestry planting of the present utility model;
[0018] Figure 2 is a side view cross-sectional structural schematic diagram of a seedling lifting device for forestry planting of the present utility model;
[0019] Figure 3 is of the present utility model Figure 2 magnified structural schematic diagram at A in;
[0020] Figure 4 is of the present utility model Figure 2 magnified structural schematic diagram at B in;
[0021] Figure 5Schematic structural diagram of the linkage mechanism of the present utility model;
[0022] Figure 6 Schematic structural diagram of the material discharging mechanism of the present utility model.
[0023] In the figure:
[0024] 1. Seedling lifting cylinder; 2. Seedling lifting shovel; 3. First fixing block; 4. First rotating shaft; 5. Second fixing block; 6. Lifting block; 7. Elastic mechanism; 8. Linkage mechanism; 9. Material discharging mechanism; 10. Slide bar; 11. Fixed cylinder; 12. Fixed handle; 13. Pressing rod; 14. First spring; 15. First silica gel sleeve; 16. Second silica gel sleeve; 17. Sliding sleeve; 18. Rubber pad; 19. Third fixing block; 20. Second rotating shaft; 21. Linkage rod; 22. Third rotating shaft; 23. Fourth fixing block; 24. Treading frame; 25. Structural rod; 26. Material discharging plate; 27. Groove; 28. Material discharging rod; 29. Auxiliary rod; 30. Second spring; 31. Limit ring. Specific embodiments
[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0026] Please refer to Figures 1 to 6 , and the above technical solutions will be described in detail through the following embodiments of the present utility model:
[0027] A seedling lifting device for forestry planting, comprising: a seedling lifting cylinder 1; seedling shovels 2 are arranged on both sides of the bottom of the seedling lifting cylinder 1, and two first fixing blocks 3 are fixedly connected to both sides of the top of each seedling shovel 2. A first rotating shaft 4 is fixedly connected between the two first fixing blocks 3. Second fixing blocks 5 are rotatably connected to the outer surfaces of the first rotating shafts 4, and the second fixing blocks 5 are fixedly connected to the seedling lifting cylinder 1. Lifting blocks 6 are arranged on both sides of the seedling lifting cylinder 1; a elastic mechanism 7 for controlling the lifting of the lifting blocks 6 is arranged at the top of the seedling lifting cylinder 1; a linkage mechanism 8 for controlling the seedling shovels 2 to rotate synchronously around the first rotating shaft 4 is arranged at the bottom of the lifting blocks 6; a material discharging mechanism 9 for preventing material jamming is arranged inside the seedling lifting cylinder 1. The user inserts the seedling shovels 2 into the soil near the seedlings through the seedling lifting cylinder 1, and then controls the lifting blocks 6 to move downward through the elastic mechanism 7. The lifting blocks 6 drive the linkage mechanism 8, and the linkage mechanism 8 simultaneously pushes the two seedling shovels 2, so that the seedling shovels 2 drive the first fixing blocks 3, and the first fixing blocks 3 drive the first rotating shafts 4 to rotate inside the second fixing blocks 5, thereby enabling the seedling shovels 2 to rotate around the first rotating shafts 4, achieving the purpose of making the two seedling shovels 2 closely fit. The seedling shovels 2 can be inserted into the soil to dig out the seedlings, and while the seedling shovels 2 dig out the seedlings, the two seedling shovels 2 are closely fitted, avoiding the situation that the dug-out seedlings fall from inside the device, and solving the problem that the seedling shovels 2 of the existing seedling lifting device for forestry planting perform lifting motion, and after the seedling shovels 2 dig out the seedlings, the multiple seedling shovels 2 cannot be closely closed, resulting in the dug-out seedlings being easily dropped from the gaps between the seedling shovels 2, and the practicability is poor.
[0028] As Figure 2 and Figure 3 shown, the elastic mechanism 7 includes: sliding rods 10 are fixedly connected to the tops of the lifting blocks 6, fixed cylinders 11 are fixedly connected to the seedling lifting cylinder 1 near the sliding rods 10. The tops of the sliding rods 10 penetrate through the fixed cylinders 11 and the fixed handles 12 and extend to the pressing rods 13, and the tops of the two sliding rods 10 are fixedly connected to the pressing rods 13; the sliding rods 10 are slidably connected to the fixed cylinders 11 and the fixed handles 12, and the two fixed handles 12 are fixedly connected to the seedling lifting cylinder 1. First springs 14 are arranged between the pressing rods 13 and the fixed handles 12, and the first springs 14 are respectively sleeved on the outer surfaces of the sliding rods 10. First silica gel sleeves 15 are sleeved on the outer surfaces of both ends of the pressing rods 13, and the first silica gel sleeves 15 are adapted to the pressing rods 13. Second silica gel sleeves 16 are sleeved on the outer surfaces of the fixed handles 12, and the second silica gel sleeves 16 are adapted to the fixed handles 12. The user pushes the pressing rods 13 downward through the cooperation of the fixed handles 12. The pressing rods 13 drive the sliding rods 10, and the sliding rods 10 drive the lifting blocks 6 while sliding downward inside the fixed cylinders 11 and the fixed handles 12, thereby controlling the lifting blocks 6 to move downward.
[0029] As Figure 3As shown, sliding sleeves 17 are fixedly connected near the fixed handle 12 to the sliding rod 10. The sliding sleeves 17 are fixedly connected to the fixed handle 12 respectively, enabling the sliding rod 10 to slide flexibly inside the fixed handle 12.
[0030] As Figure 3 and Figure 4 shown, rubber pads 18 are provided between the fixed cylinder 11 and the lifting block 6. The rubber pads 18 are fixedly connected to the sliding rod 10 respectively, which can avoid generating excessive noise when the lifting block 6 contacts the fixed cylinder 11, achieving the purpose of noise reduction.
[0031] As Figure 5 shown, the linkage mechanism 8 includes: two third fixed blocks 19 are fixedly connected to the bottom of the lifting block 6. The two third fixed blocks 19 are fixedly connected through a second rotating shaft 20. The middle outer surface of the second rotating shaft 20 is rotatably connected with a linkage rod 21; the bottom ends of the linkage rods 21 are rotatably connected with a third rotating shaft 22. Both ends of the third rotating shaft 22 are fixedly connected with a fourth fixed block 23. The fourth fixed blocks 23 are respectively fixedly connected to the seedling shovel 2. When the lifting block 6 moves downward, it drives the third fixed block 19. The third fixed block 19 drives the second rotating shaft 20. The second rotating shaft 20 pushes the top end of the linkage rod 21, causing the bottom end of the linkage rod 21 to push the third rotating shaft 22. The third rotating shaft 22 drives the fourth fixed block 23, and the fourth fixed block 23 drives the seedling shovel 2.
[0032] As Figure 1 shown, a stepping frame 24 is fixedly connected to one side of the bottom of the seedling cylinder 1. Two structural rods 25 are fixedly connected inside the stepping frame 24. After the user places the seedling shovel 2 outside the seedlings, the foot applies force to the stepping frame 24 and the structural rods 25. The stepping frame 24 drives the seedling cylinder 1, and the seedling cylinder 1 drives the seedling shovel 2, causing the seedling shovel 2 to insert into the soil.
[0033] As Figure 1 、 Figure 2 、 Figure 4 and Figure 6As shown in the figure, the material discharging mechanism 9 includes: a material discharging plate 26 is arranged inside the seedling lifting cylinder 1, a slotted opening 27 is formed at the center of the material discharging plate 26, both sides of the top of the material discharging plate 26 are fixedly connected with material discharging rods 28, the tops of the material discharging rods 28 penetrate through the seedling lifting cylinder 1 and the pressing rod 13 and extend to the auxiliary rod 29, the auxiliary rod 29 is fixedly connected with the material discharging rods 28, and the material discharging rods 28 are slidably connected with the seedling lifting cylinder 1 and the pressing rod 13; two second springs 30 are arranged between the auxiliary rod 29 and the pressing rod 13, the second springs 30 are respectively sleeved on the outer surface of the material discharging rods 28, a limiting ring 31 is fixedly connected to the seedling lifting cylinder 1 near the material discharging plate 26. When the dug seedlings and soil are stuck inside the device, the user presses the auxiliary rod 29, the auxiliary rod 29 drives the material discharging rods 28, and while the material discharging rods 28 move downward, they drive the material discharging plate 26, and the material discharging plate 26 slides downward inside the seedling lifting cylinder 1, so as to push the stuck seedlings and soil out of the device. And after the user releases the auxiliary rod 29, the second springs 30 can control the material discharging plate 26 to reset. When the dug seedlings and soil are stuck inside the device, the user can control the device to push the seedlings and soil stuck inside the device out, solving the problem that the original seedling lifting device for forestry planting does not have the function of discharging materials, resulting in the need for the user to use tools to take out the seedlings when the dug seedlings and soil are stuck inside the device.
[0034] Working principle: After the user places the seedling lifter 2 outside the seedlings, the user applies force to the stepping frame 24 and the structural rod 25 with the foot. The stepping frame 24 drives the seedling lifting cylinder 1, and the seedling lifting cylinder 1 drives the seedling lifter 2, so that the seedling lifter 2 is inserted into the soil. Then, with the cooperation of the fixed handle 12, the pressing rod 13 is pushed downward. The pressing rod 13 drives the sliding rod 10, and while the sliding rod 10 slides downward inside the fixed cylinder 11 and the fixed handle 12, it drives the lifting block 6, thereby controlling the lifting block 6 to move downward. While the lifting block 6 moves downward, it drives the third fixing block 19, the third fixing block 19 drives the second rotating shaft 20, the second rotating shaft 20 pushes the top end of the linkage rod 21, so that the bottom end of the linkage rod 21 pushes the third rotating shaft 22, the third rotating shaft 22 drives the fourth fixing block 23, the fourth fixing block 23 drives the seedling lifter 2, and the seedling lifter 2 drives the first fixing block 3, and the first fixing block 3 drives the first rotating shaft 4 to rotate inside the second fixing block 5, so that the seedling lifter 2 rotates with the first rotating shaft 4 as the center, achieving the purpose of making the two seedling lifters 2 closely fit. The seedling lifter 2 can be inserted into the soil to dig out the seedlings, and while the seedling lifter 2 digs out the seedlings, the two seedling lifters 2 are closely fitted to avoid the dug seedlings from falling out of the device, solving the problem that the seedling lifter 2 of the existing seedling lifting device for forestry planting performs a lifting motion, and after the seedling lifter 2 digs out the seedlings, the multiple seedling lifters 2 cannot be closely closed, resulting in the dug seedlings being easily dropped from the gap between the seedling lifters 2 during seedling lifting by the user, and the practicability is poor.
[0035] When the dug seedlings and soil get stuck inside the device, the user presses the auxiliary rod 29. The auxiliary rod 29 drives the blanking rod 28. While the blanking rod 28 moves downward, it drives the blanking plate 26. The blanking plate 26 slides downward inside the seedling lifting cylinder 1, thereby pushing out the stuck seedlings and soil from inside the device. And after the user releases the auxiliary rod 29, the second spring 30 can control the blanking plate 26 to reset. When the dug seedlings and soil get stuck inside the device, the user can control the device to push out the seedlings and soil stuck inside the device, solving the problem that the original seedling lifting device for forestry planting does not have a blanking function, resulting in the need for the user to use tools to take out the seedlings when the dug seedlings and soil get stuck inside the device.
[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A seedling lifting device for forestry planting, comprising: Seedling lifting tube (1); The invention is characterized in that a seedling lifting shovel (2) is provided on both sides of the bottom of the seedling lifting cylinder (1), two first fixing blocks (3) are fixedly connected to both sides of the top of the seedling lifting shovel (2), the two first fixing blocks (3) are fixedly connected to each other through a first rotating shaft (4), the outer surface of the first rotating shaft (4) is rotatably connected to a second fixing block (5), the second fixing blocks (5) are fixedly connected to the seedling lifting cylinder (1), and lifting blocks (6) are provided on both sides of the seedling lifting cylinder (1); The top of the seedling lifting tube (1) is provided with an elastic mechanism (7) for controlling the lifting block (6) to lift and lower; The bottom of the lifting block (6) is provided with a linkage mechanism (8) for controlling the seedling lifting shovel (2) to rotate synchronously with the first rotating shaft (4) as the center; The seedling lifting tube (1) is provided with a material returning mechanism (9) for preventing the material from getting stuck.
2. A seedling raising device for forestry planting as claimed in claim 1, characterized in that: The elastic mechanism (7) comprises: The top of the lifting block (6) is fixedly connected to a slide bar (10), the seedling lifting tube (1) is fixedly connected to a fixed tube (11) near the slide bar (10), the top of the slide bar (10) passes through the fixed tube (11) and the fixed handle (12) and extends to the pressing rod (13), and the tops of the two slide bars (10) are fixedly connected to the pressing rod (13); The sliding rod (10) is slidably connected to the fixed tube (11) and the fixed handle (12); the two fixed handles (12) are fixedly connected to the seedling lifting tube (1); a first spring (14) is arranged between the pressing rod (13) and the fixed handle (12); the first spring (14) is respectively sleeved on the outer surface of the sliding rod (10); the outer surfaces of both ends of the pressing rod (13) are sleeved with a first silicone sleeve (15); the first silicone sleeve (15) is matched with the pressing rod (13); the outer surfaces of the fixed handles (12) are sleeved with a second silicone sleeve (16); the second silicone sleeve (16) is matched with the fixed handles (12).
3. A seedling raising device for forestry planting as claimed in claim 2, characterized in that: The fixed handles (12) are fixedly connected to sliding sleeves (17) near the sliding rods (10), and the sliding sleeves (17) are fixedly connected to the fixed handles (12) respectively.
4. A seedling raising device for forestry planting as claimed in claim 2, characterized in that: Rubber pads (18) are provided between the fixing cylinder (11) and the lifting block (6), and the rubber pads (18) are respectively fixedly connected to the sliding rods (10).
5. A seedling raising device for forestry planting as claimed in claim 1, characterized in that: The linkage mechanism (8) comprises: The bottom of each lifting block (6) is fixedly connected to two third fixed blocks (19), and the two third fixed blocks (19) are fixedly connected via a second rotating shaft (20), and a linkage rod (21) is rotatably connected to the middle outer surface of each second rotating shaft (20); The bottom end of the linkage rod (21) is rotatably connected to a third rotating shaft (22), and both ends of the third rotating shaft (22) are fixedly connected to fourth fixing blocks (23), and the fourth fixing blocks (23) are respectively fixedly connected to the seedling lifting shovel (2).
6. A seedling raising device for forestry planting as claimed in claim 1, characterized in that: A tread frame (24) is fixedly connected to one side of the bottom of the seedling lifting tube (1), and two structural rods (25) are fixedly connected inside the tread frame (24).
7. A seedling raising device for forestry planting as claimed in claim 2, characterized in that: The material return mechanism (9) comprises: A material-removing plate (26) is arranged inside the seedling-lifting cylinder (1), a slot (27) is provided at the center of the material-removing plate (26), both sides of the top of the material-removing plate (26) are fixedly connected with material-removing rods (28), the top ends of the material-removing rods (28) penetrate the seedling-lifting cylinder (1) and the pressing rod (13) and extend to the auxiliary rod (29), the auxiliary rod (29) is fixedly connected to the material-removing rod (28), and the material-removing rod (28) is slidably connected to the seedling-lifting cylinder (1) and the pressing rod (13); Two second springs (30) are arranged between the auxiliary rod (29) and the pressing rod (13), and the second springs (30) are respectively sleeved on the outer surface of the material return rod (28). The seedling lifting tube (1) is fixedly connected to a limiting ring (31) near the material return plate (26).
Citation Information
Patent Citations
Seedling lifting device for forestry planting
CN219537032U