Inoculation device for tobacco bacterial root diseases

Abstract

The utility model discloses a tobacco bacterial root disease inoculation device, which belongs to the technical field of tobacco root inoculation, and comprises a support frame, a tobacco pot plant, a tobacco root disease inoculation device, a tobacco root disease inoculation device and a tobacco root disease inoculation device, and is characterized in that the support frame is internally and detachably provided with the tobacco pot plant; the liquid storage tank is detachably arranged at the top of the supporting frame; the multiple liquid pressing boxes are arranged on the supporting frame in the circumferential direction and connected with the side wall of the supporting frame; the liquid pressing tank is connected with the liquid storage tank through a liquid pipe; the first ends of the injection units are arranged at the end, away from the liquid pressing box, of the supporting frame in the circumferential direction and connected with the supporting frame, and the second ends of the injection units extend into the tobacco potted plants; and the liquid pressing box is connected with the injection unit through an injection pipe. The tobacco bacterial root disease inoculation device is simple in structure, inoculation bacterial liquid can be injected into a tobacco potted plant, and the injection depth of the inoculation bacterial liquid injected into the tobacco potted plant can be adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco root inoculation, and in particular relates to a tobacco bacterial root disease inoculation device. Background Art

[0002] Tobacco rhizome disease refers to a type of disease that occurs in the stems and roots of tobacco plants. It is an important disease in my country's tobacco production. Tobacco rhizome disease causes heavy economic losses to tobacco production every year. Its prevention and control is a global problem. The main reason is that the pathogens can survive in the soil. In order to achieve the prevention and control of tobacco rhizome disease, it is necessary to inoculate the tobacco roots with bacterial liquid.

[0003] When studying tobacco disease inoculation in the laboratory, the roots of tobacco potted plants need to be inoculated with bacterial solution. However, it is difficult to control the amount of inoculated bacterial solution at the roots of tobacco potted plants according to the size of the tobacco during inoculation, and the injection depth cannot be adjusted. Utility Model Content

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] A tobacco bacterial root disease inoculation device, comprising:

[0006] A support frame, wherein a tobacco pot is detachably arranged in the support frame;

[0007] A liquid storage tank, which is detachably arranged on the top of the support frame;

[0008] A plurality of pressure liquid tanks, which are circumferentially arranged on the support frame and connected to the side walls of the support frame; the pressure liquid tanks and the liquid storage tank are connected via a liquid pipe;

[0009] A plurality of injection units, wherein the first ends of the plurality of injection units are circumferentially arranged on the support frame at one end away from the pressure liquid box and connected to the support frame, and the second ends of the injection units extend into the tobacco pot; the pressure liquid box and the injection units are connected via injection liquid tubes.

[0010] Furthermore, the support frame includes a base, a top plate and a plurality of pillars; the plurality of pillars are evenly arranged on the top of the base in a circumferential direction, and the first ends of the pillars are connected to the base, and the second ends of the pillars are connected to the top plate; a groove is provided on the top of the base, and the bottom of the tobacco potted plant is inserted into the groove; an opening is provided on the top plate, and the groove is correspondingly provided; the bottom of the liquid storage tank is snapped into the opening.

[0011] Furthermore, a liquid pressure plate and a fixed plate are arranged above and below the liquid pressure box; a driving unit is arranged on the top of the liquid pressure box, and an output end of the driving unit extends into the liquid pressure box and is connected to the liquid pressure plate to drive the liquid pressure plate to approach or move away from the fixed plate;

[0012] The two ends of the fixed plate are fixedly connected to the inner wall of the pressure liquid box;

[0013] A plurality of limit blocks are transversely arranged on the inner wall of the liquid pressure box to limit the upward movement position of the liquid pressure plate;

[0014] A plurality of liquid pressing holes are evenly arranged on the fixing plate.

[0015] Furthermore, the driving part is one of a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

[0016] Furthermore, a first connecting hole is provided on the inner wall of the pressure liquid box, and the first connecting hole is connected to the second end of the liquid tube; a second connecting hole is provided on the bottom of the pressure liquid box, and the second connecting hole is connected to the first end of the injection liquid tube.

[0017] Furthermore, a third rotating plate is provided on the second connecting hole; the first end of the third rotating plate is rotatably connected to the top of the second connecting hole, and the second end of the third rotating plate is arranged above the second connecting hole; a spring is provided at the bottom of the third rotating plate and is connected to the first end of the spring, and the second end of the spring is connected to the inner wall of the second connecting hole.

[0018] Furthermore, a first stopper is provided on the second end of the second connecting hole close to the third rotating plate; the first end of the stopper is fixedly connected to the base, and the second end of the stopper is provided between the second connecting hole and the third rotating plate.

[0019] Further, the injection unit includes a telescopic rod, a first rotating plate, a second rotating plate and a rotating seat; the first end of the rotating seat is fixedly connected to the base, and the second end of the rotating seat is rotatably connected to the first end of the telescopic rod; the second end of the telescopic rod is rotatably connected to the first end of the first rotating plate, and the second end of the first rotating plate is rotatably connected to the first end of the second rotating plate; an injection fixing piece is provided on the second rotating plate to fix the second end of the injection liquid tube.

[0020] Furthermore, it also includes a net bag, a plurality of connecting ropes are evenly arranged around the top of the net bag, and the connecting ropes are arranged one by one corresponding to the pillars; the first end of the connecting rope is connected to the net bag, and the second end of the connecting rope is wrapped around the pillar; and a plurality of hooks are longitudinally arranged on the side wall of the pillar to adjust the relative position of the connecting rope.

[0021] Beneficial effects:

[0022] The utility model provides a tobacco bacterial root disease inoculation device, which can inoculate bacterial liquid on the roots of tobacco potted plants. The depth of the injection liquid tube injected into the soil can be adjusted by a second rotating plate. The amount of bacterial liquid injected into the soil each time can be adjusted by setting a liquid pressure box. Different liquid pressure boxes can be selected according to tobacco potted plants of different sizes, and different amounts of bacterial liquid can be injected into tobacco potted plants of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a tobacco bacterial root disease inoculation device in Example 1 of the utility model;

[0024] Figure 2 It is a front view of a tobacco bacterial root disease inoculation device in Example 1 of the utility model;

[0025] Figure 3 It is a top view of a tobacco bacterial root disease inoculation device in Example 1 of the utility model;

[0026] Figure 4 This is a schematic diagram of the internal structure of a liquid pressure box of a tobacco bacterial root disease inoculation device in Example 1 of the utility model;

[0027] Figure 5 This is an enlarged view of the second connection hole of a tobacco bacterial root disease inoculation device in Example 1 of the utility model;

[0028] Figure 6 This is a schematic structural diagram of an injection unit of a tobacco bacterial root disease inoculation device in Example 1 of the utility model;

[0029] Figure 7 This is a schematic diagram of the overall structure of a tobacco bacterial root disease inoculation device according to Example 2 of the utility model;

[0030] Figure 8 This is a schematic diagram of the internal structure of a rope tightening box of a tobacco bacterial root disease inoculation device according to Example 2 of the utility model;

[0031] Fig. 9 This is a schematic structural diagram of a second rotating plate, a blade fixing member and a blade of a tobacco bacterial root disease inoculation device according to Example 4 of the utility model;

[0032] Among them, 1. liquid pipe; 2. injection liquid pipe; 3. liquid storage tank; 4. liquid pressure tank; 5. base; 6. top plate; 7. pillar; 8. groove; 9. opening; 10. liquid pressure plate; 11. fixed plate; 12. driving part; 13. liquid pressure hole; 14. first connecting hole; 15. second connecting hole; 16. third rotating plate; 17. spring; 18. first stopper; 19. second stopper; 20. third stopper; 21. telescopic rod; 22. first rotating plate; 23. second rotating plate; 24. injection fixing part; 25. net bag; 26. connecting rope; 27. rope tightening box; 28. handle; 29. ​​rotating seat; 30. hook; 31. limit block; 32. blade fixing part; 33. blade. DETAILED DESCRIPTION

[0033] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below.

[0034] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "horizontal", "inner", "outer", "one side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second" and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] Example 1

[0036] Reference Figures 1 to 6 , a tobacco bacterial root disease inoculation device, comprising:

[0037] A supporting frame, wherein a tobacco pot is detachably arranged in the supporting frame;

[0038] A liquid storage tank 3, which is detachably arranged on the top of the support frame;

[0039] A plurality of pressure liquid tanks 4, which are circumferentially arranged on the support frame and connected to the side wall of the support frame; the pressure liquid tanks 4 and the liquid storage tank 3 are connected via a liquid pipe 1;

[0040] Multiple injection units, the first ends of the multiple injection units are arranged on the support frame at one end away from the pressure liquid box 4 and connected to the support frame, and the second ends of the injection units extend into the tobacco pot; the pressure liquid box 4 and the injection units are connected through the injection liquid tube 2.

[0041] Through the above technical solution, the liquid pressure tank 4 is connected to the liquid storage tank 3 through the liquid pipe 1. The liquid pressure tank 4 presses the bacterial liquid in the box into the injection liquid tube 2, and cooperates with the injection unit to inject the bacterial liquid into the soil to inoculate the tobacco roots.

[0042] In this embodiment, the support frame includes a base 5, a top plate 6 and a plurality of pillars 7; the plurality of pillars 7 are evenly arranged on the top of the base 5 in a circumferential direction, and the first end of the pillar 7 is connected to the base 5, and the second end of the pillar 7 is connected to the top plate 6; a groove 8 is provided on the top of the base 5, and the bottom of the tobacco pot is inserted into the groove 8; an opening 9 is provided on the top plate 6, and the groove 8 is correspondingly provided; the bottom of the liquid storage tank 3 is snapped into the opening 9.

[0043] Preferably, four pillars 7 are provided, and the four pillars 7 are evenly arranged on the top of the base 5 in the circumferential direction.

[0044] Through the above technical solution, the groove 8 is used to place the tobacco pot, and the height of the support 7 is higher than the height of the tobacco pot, so that the top plate 6 does not contact the top of the tobacco pot; the liquid storage tank 3 is arranged at the opening 9 of the top plate 6, which fixes the liquid storage tank 3, and the bottom of the liquid storage tank 3 does not contact the top of the tobacco pot. The liquid storage tank 3 supplies liquid to the pressure liquid tank 4 through the liquid pipe 1; when the liquid storage tank 3 is not inserted at the opening 9, the tobacco pot is placed in the groove 8 or taken out of the groove 8 through the opening 9.

[0045] In another embodiment, four liquid storage tanks 3 are provided, and the four liquid storage tanks 3 are provided on the top plate 6 and are provided corresponding to the liquid pressure tank 4. The four liquid storage tanks 3 are evenly arranged circumferentially on the edge of the opening 9, so that when the liquid storage tanks 3 are on the top plate 6, they do not affect the taking and placing of the tobacco potted plants in the groove 8.

[0046] In this embodiment, a liquid pressure plate 10 and a fixed plate 11 are arranged above and below the liquid pressure box 4; a driving unit is arranged on the top of the liquid pressure box 4, and an output end of the driving unit extends into the liquid pressure box 4 and is connected to the liquid pressure plate 10 to drive the liquid pressure plate 10 to approach or move away from the fixed plate 11;

[0047] Both ends of the fixed plate 11 are fixedly connected to the inner wall of the pressure liquid box 4;

[0048] A plurality of limit blocks 31 are disposed laterally on the inner wall of the liquid pressure box 4 to limit the upward movement position of the liquid pressure plate 10;

[0049] A plurality of liquid pressure holes 13 are evenly arranged on the fixing plate 11 .

[0050] In this embodiment, the driving part 12 is one of a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

[0051] The driving part 12 is preferably a screw motor; a guide groove (not shown in the figure) is provided between the limit block and the fixed plate, and the pressure plate moves in the guide groove.

[0052] In this embodiment, a one-way valve (not shown) is provided on the liquid pipe 1, so that the bacterial liquid in the liquid pipe 1 can flow from the liquid storage tank 3 to the liquid pressing tank 4, and prevent the bacterial liquid from flowing back into the liquid storage tank 3 when the liquid pressing plate 10 presses the bacterial liquid.

[0053] Through the above technical solution, the liquid pressing plate 10 moves up and down in the liquid pressing box 4 under the action of the driving part 12, and a plurality of liquid pressing holes 13 are arranged on the fixed plate 11. The liquid pressing plate 10 presses the liquid in the liquid pressing box 4 into the injection liquid tube 2 through the liquid pressing holes 13; the height of the fixed plate 11 in the liquid pressing box 4 determines the amount of bacterial liquid pressed out when the liquid pressing plate 10 is pressed down once, and the liquid pressing box 4 with fixed plates 11 of different heights can be arranged according to different needs, so that the amount of bacterial liquid pressed out of different liquid pressing boxes 4 is different, and different liquid pressing boxes 4 are selected according to different actual needs; in different Fixed plates 11 of different heights are arranged in the liquid pressing box 4, so that the liquid pressing plates 10 in different liquid pressing boxes 4 can press out different amounts of bacterial liquid; a large tobacco pot needs to be injected with a large amount of bacterial liquid, and the fixed plate 11 is arranged closer to the bottom of the liquid pressing box 4, and it cannot affect the outflow of the bacterial liquid from the second connecting hole 15; a small tobacco pot needs to be injected with a small amount of bacterial liquid, and the fixed plate 11 is arranged closer to the top of the liquid pressing box 4, but it does not affect the up and down movement of the liquid pressing plate 10 (the size of the tobacco pot is classified according to the specific situation during the experimental study).

[0054] In this embodiment, a first connecting hole 14 is provided on the inner wall of the pressure liquid box 4, and the first connecting hole 14 is connected to the second end of the liquid tube 1; a second connecting hole 15 is provided at the bottom of the pressure liquid box 4, and the second connecting hole 15 is connected to the first end of the injection liquid tube 2.

[0055] The first connection hole 14 is disposed on the inner wall of the liquid pressure box 4 near one end of the fixed plate 11 , and does not affect the up and down movement of the liquid pressure plate 10 in the liquid pressure box 4 .

[0056] Through the above technical solution, the bacterial liquid in the liquid storage tank 3 flows into the liquid pressure tank 4 from the first connecting hole 14 through the injection liquid tube 2. The bacterial liquid in the liquid pressure tank 4 flows out from the second connecting hole 15 under the action of the pressure plate and flows into the injection liquid tube 2.

[0057] In this embodiment, a third rotating plate 16 is provided on the second connecting hole 15; the first end of the third rotating plate 16 is rotatably connected to the top of the second connecting hole 15, and the second end of the third rotating plate 16 is arranged above the second connecting hole 15; a spring 17 is provided at the bottom of the third rotating plate 16 and is connected to the first end of the spring 17, and the second end of the spring 17 is connected to the inner wall of the second connecting hole 15.

[0058] Through the above technical solution, when the liquid pressing plate 10 in the liquid pressing box 4 moves upward or does not move under the action of the spring 17, the bacterial liquid in the liquid pressing box 4 will not flow out from the second connecting hole 15 on its own; when the liquid pressing plate 10 moves downward, the liquid pressing plate 10 squeezes the bacterial liquid downward, so that the bacterial liquid flows out from the second connecting hole 15.

[0059] In this embodiment, a first stopper 18 is disposed on the second end of the second connection hole 15 close to the third rotating plate 16 ; the first end of the stopper is fixedly connected to the base 5 , and the second end of the stopper is disposed between the second connection hole 15 and the third rotating plate 16 .

[0060] Through the above technical solution, the first stopper 18 prevents the third rotating plate 16 from rotating upward. The first stopper 18 cooperates with the spring 17 to prevent the third rotating plate 16 from rotating upward when the liquid pressure plate 10 in the liquid pressure box 4 moves upward.

[0061] In this embodiment, the injection unit includes a telescopic rod 21, a first rotating plate 22, a second rotating plate 23 and a rotating seat 29; the first end of the rotating seat 29 is fixedly connected to the base 5, and the second end of the rotating seat 29 is rotatably connected to the first end of the telescopic rod 21; the second end of the telescopic rod 21 is rotatably connected to the first end of the first rotating plate 22, and the second end of the first rotating plate 22 is rotatably connected to the first end of the second rotating plate 23; an injection fixing member 24 is provided on the second rotating plate 23 to fix the second end of the injection liquid tube 2.

[0062] Preferably, four injection units are provided, and the four injection units are evenly arranged on the top of the base 5 in a circumferential direction and staggered with the four pillars 7 .

[0063] Through the above technical solution, the injection fixture 24 fixes the second end of the injection liquid tube 2, and an injection needle (not shown in the figure) is provided at the second end of the injection liquid tube 2, and the soil in the pot is pierced through the injection needle; the tobacco roots are inoculated with bacterial liquid, and the height of the telescopic rod 21 is adjusted according to the height of different pots, so that the second rotating plate 23 and the injection needle can be extended into the pot; the rotation angle of the second rotating plate 23 can be adjusted so that the depth of the injection needle penetrating into the soil can be adjusted; the telescopic rod 21 rotates in the rotating seat 29, so that the first rotating plate 22, the second rotating plate 23 and the injection fixture 24 rotate around the telescopic rod 21.

[0064] Example 2

[0065] This embodiment is an improvement made on the basis of embodiment 1, and its improvement is: Figures 7 and 8 As shown, four pillars 7 are provided, a cylindrical net bag 25 is provided on the groove 8 of the base 5, the openings 9 at the top and bottom of the net bag 25 are both larger than the maximum opening 9 of the potted plant, four connecting ropes 26 are evenly arranged around the top of the net bag 25, the positions of the four connecting ropes 26 are arranged corresponding to the positions of the four pillars 7, and the first ends of the connecting ropes 26 are connected to the top of the net bag 25, and the second ends of the connecting ropes 26 are wrapped around the pillar 7;

[0066] Four pillars 7 are provided, and a plurality of hooks 30 are evenly arranged on one side wall of three pillars 7 in the longitudinal direction, and the second ends of three connecting ropes 26 are hung on the hooks 30 with adjustable positions, so that the position of the net bag 25 can be adjusted in the height direction of the pillars 7; a rope tightening box 27 is provided on one side wall of another pillar 7 near the end of the liquid storage tank 3; a rotating column is provided in the rope tightening box 27; a first end of another connecting rope 26 is passed through the top of the net bag 25 and is fixedly connected to the top of the net bag 25, so that the remaining part of the other connecting rope 26 can move freely on the top of the net bag 25, so as to realize the contraction of the top opening 9 of the net bag 25; after the second end of the other connecting rope 26 is connected to the rotating column, it is wound around the rotating column;

[0067] A T-shaped handle 28 is provided on the top of the rope tightening box 27, the bottom of the handle 28 is connected to the first end of the rotating column, and the second end of the rotating column extends into the rope tightening box 27; the top of the rope tightening box 27 is connected to the second stopper 19 and the third stopper 20, the second stopper 19 and the third stopper 20 are symmetrically arranged about the rotating column, and the second stopper 19 is arranged corresponding to the first end of the T-shaped handle 28, and the third stopper 20 is arranged corresponding to the second end of the T-shaped handle 28.

[0068] Through the above technical solution, the position of the net bag 25 is adjusted according to the height of the tobacco leaves in the tobacco pot, so that the net bag 25 can wrap the tobacco leaves. At this time, the T-shaped handle 28 is lifted and then rotated, and the connecting rope 26 is tightened to shrink the opening 9 at the top of the net bag 25, and the branches and leaves at the top of the tobacco are appropriately tightened, and the branches and trunks of the tobacco near the root are exposed. The height of the telescopic rod 21 in the injection unit is adjusted so that the injection needle on the second rotating plate 23 can be inserted into the soil of the tobacco pot to inject the bacterial solution.

[0069] Example 3

[0070] This embodiment is based on the embodiment 2, and a plurality of wheels are arranged at the bottom of the base, so that the device can be easily moved and the bacterial liquid in the liquid storage tank on the top of the top plate can be transported.

[0071] Example 4

[0072] This embodiment is an improvement made on the basis of embodiment 2, and its improvement is: Fig. 9 As shown, the injection fixing part 24 on the second rotating plate of one of the four injection units is replaced with a blade fixing part 32, and the injection liquid tube and liquid tube corresponding to this injection unit are removed from the device; the blade fixing part 32 is rotatably connected to the second rotating plate 23, and the blade 33 is fixed on the blade fixing part 32. The height position of the blade 33 cutting the root is adjusted by the rotation angle of the first rotating plate 22 and the telescopic rod 21, and the angle of the blade 33 cutting the root is adjusted by the rotation angle of the blade fixing part 32 and the second rotating plate 23, so that the blade 33 can adjust the angle and the relative position to cut the root at the inoculation position, so that the tobacco root is damaged, but the growth of the tobacco is not affected, which is more conducive to the inoculation of bacterial liquid and improves the success rate of inoculation of the tobacco root.

[0073] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A tobacco bacterial root disease inoculation device, characterized in that: include: A support frame, wherein a tobacco pot is detachably arranged in the support frame; A liquid storage tank, which is detachably arranged on the top of the support frame; A plurality of pressure liquid tanks, which are circumferentially arranged on the support frame and connected to the side walls of the support frame; the pressure liquid tanks and the liquid storage tank are connected via a liquid pipe; A plurality of injection units, wherein the first ends of the plurality of injection units are circumferentially arranged on the support frame at one end away from the pressure liquid box and connected to the support frame, and the second ends of the injection units extend into the tobacco pot; the pressure liquid box and the injection units are connected via injection liquid tubes.

2. The tobacco bacterial root disease inoculation device according to claim 1, characterized in that: The support frame includes a base, a top plate and a plurality of pillars; the plurality of pillars are evenly arranged on the top of the base, and the first ends of the pillars are connected to the base, and the second ends of the pillars are connected to the top plate; a groove is provided on the top of the base, and the bottom of the tobacco pot is inserted into the groove; an opening is provided on the top plate, and the groove is correspondingly provided; the bottom of the liquid storage tank is snapped into the opening.

3. The tobacco bacterial root disease inoculation device according to claim 2, characterized in that: The pressure liquid box is provided with a pressure liquid plate and a fixed plate at the top and bottom; a driving part is provided at the top of the pressure liquid box, and the output end of the driving part extends into the pressure liquid box and is connected to the pressure liquid plate to drive the pressure liquid plate to approach or move away from the fixed plate; The two ends of the fixed plate are fixedly connected to the inner wall of the pressure liquid box; A plurality of limit blocks are transversely arranged on the inner wall of the liquid pressure box to limit the upward movement position of the liquid pressure plate; A plurality of liquid pressing holes are evenly arranged on the fixing plate.

4. The tobacco bacterial root disease inoculation device according to claim 3, characterized in that: The driving part is one of a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

5. The tobacco bacterial root disease inoculation device according to claim 3, characterized in that: A first connecting hole is provided on the inner wall of the pressure liquid box, and the first connecting hole is connected to the second end of the liquid tube; a second connecting hole is provided on the bottom of the pressure liquid box, and the second connecting hole is connected to the first end of the injection liquid tube.

6. The tobacco bacterial root disease inoculation device according to claim 5, characterized in that: A third rotating plate is provided on the second connecting hole; the first end of the third rotating plate is rotatably connected to the top of the second connecting hole, and the second end of the third rotating plate is arranged above the second connecting hole; a spring is provided at the bottom of the third rotating plate and is connected to the first end of the spring, and the second end of the spring is connected to the inner wall of the second connecting hole.

7. The tobacco bacterial root disease inoculation device according to claim 6, characterized in that: A first stopper is disposed on the second end of the second connection hole close to the third rotating plate; the first end of the stopper is fixedly connected to the base, and the second end of the stopper is disposed between the second connection hole and the third rotating plate.

8. The tobacco bacterial root disease inoculation device according to claim 7, characterized in that: The injection unit includes a telescopic rod, a first rotating plate, a second rotating plate and a rotating seat; the first end of the rotating seat is fixedly connected to the base, and the second end of the rotating seat is rotatably connected to the first end of the telescopic rod; the second end of the telescopic rod is rotatably connected to the first end of the first rotating plate, and the second end of the first rotating plate is rotatably connected to the first end of the second rotating plate; an injection fixing piece is provided on the second rotating plate to fix the second end of the injection liquid tube.

9. The tobacco bacterial root disease inoculation device according to claim 2, characterized in that: It also includes a net bag, which has a plurality of connecting ropes evenly arranged around the top of the net bag, and the connecting ropes are arranged one-to-one corresponding to the pillars; the first end of the connecting rope is connected to the net bag, and the second end of the connecting rope is wrapped around the pillar; and a plurality of hooks are longitudinally arranged on the side wall of the pillar to adjust the relative position of the connecting rope.

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