Tobacco transplanting device for tobacco planting

Abstract

The utility model belongs to the technical field of tobacco transplanting, and particularly relates to a tobacco transplanting device for tobacco planting. The transplanting assembly comprises an inverted U-shaped support installed at the bottom output end of the rotating motor, a transplanting top cover cylinder fixed to the bottom end of the U-shaped support and a detachable transplanting flaring cover cylinder detachably connected to the bottom end of the transplanting top cover cylinder and used for being drilled into soil. A protective slope part for protecting tobacco rhizomes is arranged at the bottom end of the detachable transplanting flaring cover cylinder, a containing cavity is formed in the protective slope part, two transplanting soil supporting arc-shaped rods capable of relatively moving along an arc-shaped track are symmetrically hinged to the interior of the containing cavity, and synchronous horizontal gear driving parts are arranged at the opposite ends of the two transplanting soil supporting arc-shaped rods; the two transplanting soil supporting arc-shaped rods are connected with elastic stretching soil supporting nets, and the tail ends of the elastic stretching soil supporting nets are connected with the inner wall of the containing cavity through elastic components.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco transplanting, in particular to a tobacco transplanting device for tobacco planting. Background Art

[0002] Tobacco belongs to the family of tubular flowers, Solanaceae, an annual or limited perennial herb with a slightly lignified base and a terminal conical inflorescence. Tobacco needs to be transplanted during the planting process. Currently, a transplanting device is used when transplanting tobacco seedlings. The existing transplanting structure is either a direct hollow cylindrical structure or a transplanting device with a pointed valve structure. However, when these two types of transplanting devices are inserted into the soil where the tobacco seedlings are planted and pulled up for transplanting, the former is prone to causing the seedlings and soil to fall off during transplanting because the bottom of the transplanting device does not have a structure to lift the soil. The latter tightens the pointed valve structure centripetally, but during the tightening process, the pointed valve structure easily squeezes the soil, causing the soil to loosen, deform, and fall off, and its sharp edges squeeze the roots and rhizomes of the seedlings, and the roots and rhizomes of the tobacco seedlings cannot be protected, thereby reducing the survival rate of tobacco transplanting.

[0003] After searching, the existing Chinese patent publication number: CN220630061U is a tobacco transplanting device for tobacco planting, including a guide cylinder and handles fixedly connected to both sides of the guide cylinder, the inner wall of the guide cylinder is provided with an adjustment structure for adjusting the sliding range of the plant in the guide cylinder, the adjustment structure includes a limiting sleeve, and the limiting sleeve is provided with a pushing member for fitting the inside of the guide cylinder, one side of one of the handles is provided with a rotating structure, the bottom end of the guide cylinder is provided with a placing structure, and the outer wall of the guide cylinder is provided with a pulling structure for controlling the opening and closing of the placing structure.

[0004] The cited patent literature also has the same problem. During the tightening process, the pointed valve structure easily squeezes the soil, causing the soil to loosen, deform and fall off, and its sharp edges squeeze the roots and rhizomes of the seedlings, failing to protect the roots and rhizomes of the tobacco seedlings, thereby reducing the survival rate of tobacco transplanting. Utility Model Content

[0005] The utility model aims to provide a tobacco transplanting device for tobacco planting to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tobacco transplanting device for tobacco planting, comprising a traveling frame assembly for traveling in a tobacco planting field, a three-axis moving module being installed on the top of the traveling frame assembly, and an output end of the three-axis moving module being connected to a transplanting assembly for tobacco transplanting via a rotating motor;

[0007] The transplanting assembly comprises an inverted U-shaped bracket installed at the bottom output end of the rotating motor, a transplanting top cover tube fixed to the bottom end of the U-shaped bracket, and a detachable transplanting expansion cover tube detachably connected to the bottom end of the transplanting top cover tube for drilling into the soil, and a protective slope body part for protecting tobacco rhizomes is arranged at the bottom end of the detachable transplanting expansion cover tube, and a receiving cavity is provided inside the protective slope body part;

[0008] Two transplanting soil-supporting arc rods that can move relatively along an arc track are symmetrically hinged in the accommodating cavity. A synchronous flat gear driving component is provided at the opposite end of the two transplanting soil-supporting arc rods. Both of the two transplanting soil-supporting arc rods are connected to an elastic stretching soil-supporting net, and the tail end of the elastic stretching soil-supporting net is connected to the inner wall of the accommodating cavity through an elastic component.

[0009] Preferably, the top annular array of the detachable transplanting expansion cover cylinder is provided with a plurality of positioning slots, and the bottom annular array of the transplanting top cover cylinder is provided with a plurality of positioning blocks adapted to be installed in the positioning slots.

[0010] Preferably, in the present solution, connecting ear plates are symmetrically welded to the peripheral outer walls of the opposite ends of the transplanting top cover cylinder and the detachable transplanting expansion cover cylinder, and two upper and lower adjacent connecting ear plates are connected together by locking bolts.

[0011] Preferably, the two transplanting soil supporting arc rods have connecting protrusions integrally formed at opposite ends, and the synchronous flat gear driving component includes gear members fixedly mounted on the top surface of each connecting protrusion and meshing with each other.

[0012] In a preferred embodiment of the present invention, a driving rod is fixedly mounted on the inner ring of one of the gear members, and the driving rod extends longitudinally upward to the outside of the slope protection member and is connected to a driving handle plate.

[0013] Preferably, a protective cover box for protecting two gear parts is fixed in the accommodating cavity, and arc-shaped travel grooves are formed on the outer walls at both ends of the protective cover box for the connecting protrusion to move along an arc trajectory, and the gear parts are located in the upper part of the inner cavity of the protective cover box.

[0014] Preferably, the elastic component comprises a plurality of tension springs fixedly mounted on the tail end of each elastic tension soil-supporting net, and the other end of the tension spring is fixed to the inner wall of the accommodating cavity.

[0015] Preferably, the outer wall of the free end of the slope protection member is provided with a circle of sawtooth members for drilling soil.

[0016] Preferably, the inner top wall of the U-shaped bracket is installed with an electric telescopic rod, the bottom telescopic end of the electric telescopic rod is fixed with an L connecting rod, the bottom end of the L connecting rod is welded with a bulldozer arc rod for pushing the soil pile downward, and the bulldozer arc rod is located above the inner cavity of the transplanting top cover tube.

[0017] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0018] The tobacco transplanting device for tobacco planting, through the unique transplanting soil support structure design, especially the coordinated use of the transplanting soil support arc rod and the elastic stretch soil support net, effectively avoids physical damage to the tobacco seedling root system during the transplanting process, reduces soil shedding, and significantly improves the survival rate of the tobacco seedlings after transplanting; the innovative design of the slope protection member and the transplanting soil support structure avoids the squeezing of the soil by the traditional pointed valve structure, protects the integrity of the soil structure, helps the tobacco root system to better adapt to the new environment and promotes growth;

[0019] The design of the detachable transplanting and expanding cover is convenient for quick adjustment or replacement according to different soil types and tobacco planting needs. At the same time, the design of the connecting ear plate and locking bolt enhances the structural stability of the device and facilitates maintenance and cleaning.

[0020] The transplanting soil support arc rod wraps and lifts the soil under the control of the driving mechanism, while the elastic tensile soil support net provides additional elastic support to ensure the stability of the soil structure. The tensile spring ensures smooth operation and accurate reset. The whole process not only protects the root system from damage, but also maintains the structural integrity of the soil, thereby improving the survival rate of tobacco seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the connection state of the Z-axis guide rail and the U-shaped bracket of the utility model;

[0024] Figure 3 This is a schematic diagram of the connection state of the U-shaped bracket and the transplanting top cover tube of the utility model;

[0025] Figure 4It is a schematic diagram of the structure of the transplanting top cover cylinder and the detachable transplanting expansion cover cylinder of the utility model in the disassembled state;

[0026] Figure 5 For this utility model Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 6 It is a schematic structural diagram of the connection state of two transplanting soil-supporting arc-shaped rods of the utility model;

[0028] Figure 7 For this utility model Figure 6 A schematic diagram of the enlarged structure at B in the middle;

[0029] Figure 8 It is a schematic diagram of the accommodating chamber of the utility model.

[0030] Description of reference numerals:

[0031] In the figure: 1. Travel frame assembly; 2. Three-axis mobile module; 3. Transplantation assembly; 4. U-shaped frame plate; 5. Travel wheel; 6. U-shaped push-pull rod; 7. Towing rod; 8. Distribution box; 9. X-axis guide rail; 10. Y-axis guide rail;

[0032] 11. Z-axis guide rail; 12. X-axis movable support; 13. Y-axis movable support; 14. Rotating motor; 15. U-shaped bracket; 16. L hanging plate; 17. Transplanting top cover cylinder; 18. Removable transplanting expansion cover cylinder; 19. Sawtooth piece; 20. Independent battery;

[0033] 21. L connecting rod; 22. Bulldozer arc rod; 23. Handle; 24. Slope protection member; 25. Driving rod; 26. Positioning plate; 27. Driving handle plate; 28. Electric telescopic rod; 29. ​​Connecting ear plate; 30. Locking bolt;

[0034] 31. Positioning slot; 32. Positioning block; 33. Transplanting soil supporting arc rod; 34. Elastic stretching soil supporting net; 35. Axis hole; 36. Tension spring; 37. Protective cover box; 38. Connecting convex block; 39. Gear member; 40. Arc travel notch;

[0035] 41. Through hole; 42. Accommodating cavity. DETAILED DESCRIPTION

[0036] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0037] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0038] This embodiment provides Figures 1 to 8 A tobacco transplanting device for tobacco planting shown in the figure includes a traveling frame assembly 1 for traveling in a tobacco planting field. The traveling frame assembly 1 includes two symmetrically arranged inverted U-shaped frame plates 4 and traveling wheels 5 respectively installed at the bottom ends of the U-shaped frame plates 4, thereby ensuring the overall stability and maneuverability of the device. A U-shaped push-pull rod 6 is fixed to the outer wall of one of the U-shaped frame plates 4, and a traction rod 7 is fixedly installed in the middle position of the U-shaped push-pull rod 6, which is convenient for traction by a tractor or other power equipment.

[0039] In this embodiment, a three-axis mobile module 2 is installed on the top of the walking frame assembly 1, and the three-axis mobile module 2 includes two X-axis guide rails 9 symmetrically fixedly installed on the top surfaces of the two U-shaped frame plates 4, a Y-axis guide rail 10 installed between the two X-axis guide rails 9, and a Z-axis guide rail 11 installed on the Y-axis guide rail 10. The top surface of each X-axis guide rail 9 is adapted to be slidably connected with an X-axis mobile support 12, both ends of the Y-axis guide rail 10 are fixedly installed in the two X-axis mobile supports 12, the top surface of the Y-axis guide rail 10 is slidably connected with a Y-axis mobile support 13, and the outer wall of the Z-axis guide rail 11 is welded with an L-hanging plate 16, and the L-hanging plate 16 is connected to the Y-axis mobile support 13 by bolts.

[0040] In this embodiment, the output end of the three-axis mobile module 2 is connected to a transplanting assembly 3 for tobacco transplanting through a rotating motor 14, the bottom telescopic rod of the Z-axis guide rail member 11 is fixedly connected to the rotating motor 14, and the transplanting assembly 3 includes an inverted U-shaped bracket 15 installed at the bottom output end of the rotating motor 14, a transplanting top cover tube 17 fixed to the bottom end of the U-shaped bracket 15, and a detachable transplanting expansion cover tube 18 detachably connected to the bottom end of the transplanting top cover tube 17 for drilling into the soil, the top surface of the U-shaped bracket 15 has an axial hole 35 for connecting the output shaft of the rotating motor 14, and the bottom end of the detachable transplanting expansion cover tube 18 is provided with a protective slope member 24 for protecting tobacco rhizomes, and the protective slope member 24 has an accommodating cavity 42 inside, and two transplanting soil supporting arc rods 33 that can move relatively along an arc track are symmetrically hinged in the accommodating cavity 42, and the two transplanting soil supporting arc rods 33 are provided with synchronous flat gear driving components at opposite ends. The X-axis guide rail member 9 and the Y-axis guide rail member 10 use a motor to drive the lead screw to rotate to drive the X-axis movable support 12 and the Y-axis movable support 13 to move linearly, while the Z-axis guide rail member 11 uses a cylinder to drive the U-shaped bracket 15 to move up and down.

[0041] In this embodiment, the U-shaped bracket 15 is a supporting platform for the transplanting top cover tube 17 and the detachable transplanting expansion cover tube 18. The protective slope member 24 is located at the bottom of the detachable transplanting expansion cover tube 18, and the outer wall of its free end is equipped with a sawtooth member 19 to facilitate drilling into the soil. The internal accommodating cavity 42 is equipped with a transplanting soil supporting arc rod 33 and an elastic stretching soil supporting net 34. Through the coordinated work of the gear member 39 and the driving rod 25, the soil is gently clamped and released to avoid squeezing the tobacco root system.

[0042] In this embodiment, the transplanting top cover tube 17 serves as the upper structure of the transplanting assembly, and together with the detachable transplanting expansion cover tube 18, provides a stable transplanting environment for the tobacco seedlings, ensuring that the seedlings are not damaged during the movement. A protective slope member 24 is installed at the bottom of the detachable transplanting expansion cover tube 18, which plays a role in protecting the tobacco roots and stems during the transplanting process. At the same time, the detachable design of the detachable transplanting expansion cover tube 18 is convenient for cleaning and replacement, so as to meet the needs of transplanting tobacco seedlings of different sizes.

[0043] In this embodiment, when the transplanting top cover tube 17 and the detachable transplanting expansion cover tube 18 are used together, these two parts constitute the core structure of the transplanting device, wherein the transplanting top cover tube 17 provides upper support, and the protective slope member 24 at the bottom of the detachable transplanting expansion cover tube 18 directly acts on the soil to form a preliminary protection for the root system of the tobacco seedlings. The detachable design is easy to clean and replace, adapts to different soil conditions and transplanting requirements, and improves the versatility and maintenance convenience of the device.

[0044] In this embodiment, the two transplanting soil supporting arc rods 33 are integrally formed with connecting protrusions 38 at the opposite ends, and the synchronous flat gear driving components include gear parts 39 that are fixedly installed on the top surface of each connecting protrusion 38 and meshed with each other. The inner ring of one of the gear parts 39 is fixedly installed with a driving rod 25, which extends longitudinally upward to the outside of the protective slope part 24 and is connected to a driving handle plate 27. The two transplanting soil supporting arc rods 33 are connected to an elastic stretching soil supporting net 34, and the tail end of the elastic stretching soil supporting net 34 is connected to the inner wall of the accommodating cavity 42 through an elastic component.

[0045] In this embodiment, the operator can control the rotation of the driving rod 25 by driving the handle plate 27, and then adjust the opening and closing of the transplanting soil supporting arc rod 33 to complete the lifting and release of the soil. The transplanting soil supporting arc rod 33 is in the accommodating cavity 42 of the protective slope member 24, and can move along an arc track through gear drive to lift the soil, prevent the soil from loosening during transplanting, and protect the root system of the seedlings. The elastic stretching soil supporting net 34 is connected to the transplanting soil supporting arc rod 33, and provides additional support through elastic stretching to maintain the soil structure, reduce the pressure on the root system, and improve the survival rate of transplanting.

[0046] In this embodiment, under the clockwise rotation control of the driving rod 25, the transplanting soil supporting arc rod 33 rotates centripetally and supports the soil, and the elastic stretch soil supporting net 34 provides additional elastic support to ensure the stability of the soil structure.

[0047] In this embodiment, the elastic component includes a plurality of tension springs 36 fixedly installed at the tail end of each elastic tension soil-supporting net 34. The other end of the tension spring 36 is fixed to the inner wall of the accommodating cavity 42. The outer wall of the free end of the protective slope member 24 is provided with a circle of serrated members 19 for drilling the soil. The serrated members 19 increase the penetration force into the soil during transplanting, making it easier to drill into and stabilize in the soil, thereby ensuring the transplanting depth and stability.

[0048] In this embodiment, the tension spring 36 provides a restoring force to ensure that the elastic tension soil supporting net 34 can automatically reset after the transplanting soil supporting arc rod 33 is actuated, thereby simplifying the operation process.

[0049] In this embodiment, a protective cover box 37 for protecting two gear members 39 is fixed in the accommodating cavity 42, and arc-shaped travel slots 40 are provided on both ends of the outer wall of the protective cover box 37 for the connection protrusion 38 to move along the arc track. The gear member 39 is located in the upper part of the inner cavity of the protective cover box 37, and a through hole 41 is provided on one side of the top surface of the protective cover box 37 for the driving rod 25 to pass through. The protective cover box 37 is fixed in the protective slope member 24 to protect the gear member 39 from external damage, and at the same time, provides space for the connection protrusion 38 to move.

[0050] In this embodiment, a plurality of positioning slots 31 are provided in an annular array on the top surface of the detachable transplanting and expansion housing cylinder 18, and a plurality of positioning blocks 32 for fitting with the positioning slots 31 are installed in an annular array on the bottom surface of the transplanting top cover cylinder 17. The transplanting top cover cylinder 17 and the detachable transplanting and expansion housing cylinder 18 are symmetrically welded with connecting ear plates 29 on the outer walls of the opposite ends, and the two adjacent connecting ear plates 29 are connected together by locking bolts 30.

[0051] In this embodiment, the positioning slot 31 and the positioning block 32 are used together to ensure accurate positioning and firm connection between the transplanting top cover tube 17 and the detachable transplanting expansion cover tube 18, which facilitates assembly and disassembly and also enhances the stability of the overall structure.

[0052] In this embodiment, an electric telescopic rod 28 is installed on the inner top wall of the U-shaped bracket 15, and an L connecting rod 21 is fixed to the bottom telescopic end of the electric telescopic rod 28. A bulldozer arc rod 22 is welded to the bottom end of the L connecting rod 21 for pushing the soil pile downward. The bulldozer arc rod 22 is located above the inner cavity of the transplanting top cover tube 17. The L connecting rod 21 connects the electric telescopic rod 28 and the bulldozer arc rod 22 to transmit power to ensure the accurate execution of the bulldozer action. After the transplanting is completed, the tobacco seedlings are transplanted into a dug planting pit. At this time, the bulldozer arc rod 22 pushes the soil in the transplanting top cover tube 17 and the detachable transplanting expansion cover tube 18 downward, and the soil falls into the dug planting pit, stabilizing the tobacco seedlings and promoting the close combination of soil and root system.

[0053] In this embodiment, a distribution box 8 for wiring and powering the X-axis guide rail 9, the Y-axis guide rail 10, the Z-axis guide rail 11 and the rotating motor 14 is provided on the top surface of one of the U-shaped frame plates 4, and an independent battery 20 for independently powering the electric telescopic rod 28 is installed inside the upper side of the U-shaped bracket 15.

[0054] In this embodiment, a positioning plate 26 for the driving rod 25 to penetrate longitudinally is welded to the outer wall of the detachable transplanting and expanding housing cylinder 18, and bearings are provided at the bottom and middle of the driving rod 25, and the bearings are respectively embedded in the positioning plate 26 and the top surface of the protective slope member 24, and a handle 23 is also symmetrically welded to the outer wall of the detachable transplanting and expanding housing cylinder 18.

[0055] In this embodiment, the distribution box 8 is provided with a PLC for controlling the opening and closing of various devices, and the model of the PLC should be selected according to the needs.

[0056] Working principle:

[0057] The tobacco transplanting device for tobacco planting, the traveling frame assembly 1 provides a basic mobile platform, and the traveling wheels 5 realize free movement in the field. The U-shaped push-pull rod 6 and the traction rod 7 can be easily towed by external equipment such as agricultural tractors, and are suitable for large-scale field operations. The coordinated operation of the X-axis guide rail 9, the Y-axis guide rail 10 and the Z-axis guide rail 11 can adjust the position of the U-shaped bracket 15 in the XYZ axis direction;

[0058] The Z-axis guide rail member 11 drives the rotating motor 14 and the U-shaped bracket 15 to rise and fall, and the rotating motor 14 drives the U-shaped bracket 15 to rotate. The transplanting top cover tube 17 is used in conjunction with the detachable transplanting expansion cover tube 18 to drive the detachable transplanting expansion cover tube 18 to drill into the soil for planting tobacco seedlings. As it is pressed down to the target depth, the protective slope member 24 at the bottom of the detachable transplanting expansion cover tube 18 begins to play a role. Its arc-shaped slope design helps to reduce the direct pressure of the soil on the roots of the seedlings. At the same time, the serrated member 19 helps to cut the soil and reduce insertion resistance. Located in the accommodating cavity 42 inside the protective slope member 24, the symmetrically arranged transplanting soil-supporting arc rods 33 are controlled by the synchronous flat gear drive component composed of a gear member 39 and a drive rod 25, and can move along an arc trajectory. During the transplanting process, when the transplanting soil supporting arc rods 33 are unfolded, they can support the soil around the seedlings to prevent the soil from loosening and falling. At the same time, the elastic stretching soil supporting net 34 provides additional support through the elastic force of the stretching spring 36 to ensure the stability of the soil structure and reduce physical damage to the root system;

[0059] By cooperating with the X-axis guide member 9, the Y-axis guide member 10 and the Z-axis guide member 11 again, the position of the U-shaped bracket 15 in the XYZ-axis direction can be adjusted. After transplanting is completed, the tobacco seedlings are moved to a dug planting pit. At this time, the bulldozer arc rod 22 pushes the soil in the transplanting top cover tube 17 and the detachable transplanting expansion cover tube 18 downward, and the soil and the seedlings fall into the dug planting pit together, stabilizing the tobacco seedlings and promoting close integration of the soil and the root system.

[0060] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tobacco transplanting device for tobacco planting, comprising a traveling frame assembly (1) for traveling in a tobacco planting field, characterized in that: A three-axis moving module (2) is installed on the top of the traveling frame assembly (1), and an output end of the three-axis moving module (2) is connected to a transplanting assembly (3) for transplanting tobacco via a rotating motor (14); The transplanting assembly (3) comprises an inverted U-shaped bracket (15) mounted on the bottom output end of the rotating motor (14), a transplanting top cover tube (17) fixed to the bottom end of the U-shaped bracket (15), and a detachable transplanting expansion cover tube (18) detachably connected to the bottom end of the transplanting top cover tube (17) for drilling into the soil, wherein a protective slope member (24) for protecting tobacco rhizomes is provided at the bottom end of the detachable transplanting expansion cover tube (18), and a receiving cavity (42) is provided inside the protective slope member (24); Two transplanting soil-supporting arc-shaped rods (33) capable of relatively moving along an arc-shaped track are symmetrically hinged in the accommodating cavity (42); synchronous flat gear driving components are arranged at opposite ends of the two transplanting soil-supporting arc-shaped rods (33); the two transplanting soil-supporting arc-shaped rods (33) are both connected to an elastic stretching soil-supporting net (34); and the rear end of the elastic stretching soil-supporting net (34) is connected to the inner wall of the accommodating cavity (42) through an elastic component.

2. A tobacco transplanting device for tobacco planting according to claim 1, characterized in that: The top surface of the detachable transplanting and expanding cover cylinder (18) is provided with a plurality of positioning slots (31) in an annular array, and the bottom surface of the transplanting top cover cylinder (17) is provided with a plurality of positioning blocks (32) adapted to be installed in the positioning slots (31) in an annular array.

3. A tobacco transplanting device for tobacco planting according to claim 2, characterized in that: The transplanting top cover cylinder (17) and the detachable transplanting expansion cover cylinder (18) are both symmetrically welded with connecting ear plates (29) on the peripheral outer walls of the opposite ends, and the two upper and lower adjacent connecting ear plates (29) are connected together by locking bolts (30).

4. A tobacco transplanting device for tobacco planting according to claim 3, characterized in that: The two transplanting soil supporting arc rods (33) are integrally formed with connecting protrusions (38) at opposite ends, and the synchronous flat gear driving component comprises gear members (39) fixedly mounted on the top surface of each connecting protrusion (38) and meshing with each other.

5. A tobacco transplanting device for tobacco planting according to claim 4, characterized in that: A driving rod (25) is fixedly mounted on the inner ring of one of the gear parts (39), and the driving rod (25) extends longitudinally upward to the outside of the protective slope part (24) and is connected to a driving handle plate (27).

6. A tobacco transplanting device for tobacco planting according to claim 5, characterized in that: A protective cover box (37) for protecting two gear members (39) is fixed in the accommodating cavity (42). The outer walls at both ends of the protective cover box (37) are provided with arc-shaped travel slots (40) for the connecting protrusion (38) to move along an arc-shaped trajectory. The gear member (39) is located at the upper part of the inner cavity of the protective cover box (37).

7. A tobacco transplanting device for tobacco planting according to claim 6, characterized in that: The elastic component comprises a plurality of tension springs (36) fixedly mounted on the tail end of each elastic tension soil-supporting net (34), and the other end of the tension spring (36) is fixed to the inner wall of the accommodating cavity (42).

8. A tobacco transplanting device for tobacco planting according to claim 7, characterized in that: The outer wall of the free end of the slope protection member (24) is provided with a circle of sawtooth members (19) for drilling soil.

9. A tobacco transplanting device for tobacco planting according to claim 8, characterized in that: An electric telescopic rod (28) is installed on the inner top wall of the U-shaped bracket (15), and an L-connecting rod (21) is fixed to the bottom telescopic end of the electric telescopic rod (28); A bulldozer arc rod (22) for pushing the soil pile downward is welded to the bottom end of the L-connecting rod (21), and the bulldozer arc rod (22) is located above the inner cavity of the transplanting top cover cylinder (17).

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