Plant root pesticide applying device

Abstract

The invention relates to a plant root pesticide applying device which comprises a traction agricultural machine and a pesticide box, the traction agricultural machine is provided with a concentric-square-shaped support, the concentric-square-shaped support is provided with a flow divider, a header pipe is connected between the flow divider and the pesticide box, the header pipe is provided with a liquid pump, and the flow divider is connected with a plurality of branch pipes; a receding groove is formed in the bottom of the concentric-square-shaped support, a ball screw is rotationally connected between the inner top wall and the inner bottom wall of the concentric-square-shaped support, a ball nut is connected to the ball screw in a threaded mode, a guide rod is arranged between the inner top wall and the inner bottom wall of the concentric-square-shaped support, and a sliding sleeve is slidably connected to the guide rod. A connecting piece is arranged between the sliding sleeve and the ball nut, and a needle-shaped medicine applying device penetrating out of the avoiding groove is arranged on the connecting piece. According to the device, pesticide liquid is evenly sprayed to the peripheries of vegetable roots, precise pesticide application is achieved, damage to the vegetable roots is avoided, the pesticide liquid can be evenly distributed on the vegetable roots, and the prevention and treatment effect on plant diseases and insect pests is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pest control, and particularly to a device for applying medicine to plant roots. Background Art

[0002] When growing vegetables, farmers often encounter some problems, such as plant lodging, root or stem rot, plant death, etc. The reasons for these problems may be that the plants are invaded by diseases such as root rot, damping-off, and stem rot. These diseases are usually transmitted through the soil. If farmers cannot control these diseases in a timely and effective manner, the growth of vegetables will be affected, the disease condition may gradually worsen, and in the most serious cases, the vegetables may even die. Moreover, healthy vegetables may also be infected, resulting in damage to the crops in the entire plot. This requires pest control for plants.

[0003] Vegetable pest control includes foliar control and root control. Foliar control mainly kills pests by spraying pesticides on the vegetable leaves. However, for underground pests, this method has very limited effects. Underground pests such as grubs and cutworms mainly feed on the roots of plants, and it is difficult for the pesticides sprayed on the leaves to directly contact these pests. Therefore, the control effect is not good, and chemical pesticides may enter the water body through rainwater scouring, affecting the aquatic ecosystem. In addition, the residues of pesticides may also pollute the soil and groundwater, and long-term use may have an adverse impact on the ecological environment. At this time, it is necessary to adopt measures for preventing and controlling plant root pests to control vegetable pests.

[0004] The commonly used method for preventing and controlling root pests is to apply pesticides to the soil, and the pesticides are applied to the rhizosphere of vegetables. The specific operation method is to dig trenches or holes at the roots of vegetables, apply pesticides according to requirements, and then cover the soil. By absorbing through the roots of vegetables, the purpose of pest control is achieved. This not only damages the roots of vegetables and affects the growth of vegetables, but also cannot make the liquid medicine evenly distributed at the roots of vegetables, affecting the pest control effect. Summary of the Invention

[0005] The embodiments of the present invention provide a device for applying medicine to plant roots, which can solve the problems in the prior art that when implementing the measures for preventing and controlling vegetable root pests, it is necessary to dig trenches or holes at the roots of vegetables, which not only damages the roots of vegetables and affects the growth of vegetables, but also cannot make the liquid medicine evenly distributed at the roots of vegetables, affecting the pest control effect.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: A device for applying medicine to plant roots includes a traction agricultural machine and a medicine tank. A loop-shaped bracket is provided on the traction agricultural machine, a diverter is provided on the loop-shaped bracket, a main pipe is connected between the diverter and the medicine tank, a liquid pump is provided on the main pipe, and a plurality of branch pipes are connected to the diverter;

[0007] An avoidance groove is formed at the bottom of the U-shaped bracket. A ball screw is rotatably connected between the inner top wall and the inner bottom wall of the U-shaped bracket. A ball nut is threadedly connected to the ball screw. A guide rod is arranged between the inner top wall and the inner bottom wall of the U-shaped bracket. A sliding sleeve is slidably connected to the guide rod. A connecting member is arranged between the sliding sleeve and the ball nut. Needle-shaped applicators passing through the avoidance groove are arranged on the connecting member. The number of the needle-shaped applicators is the same as that of the branch pipes. The needle-shaped applicators are respectively connected to the respective branch pipes.

[0008] Preferably, the connecting member includes a first mounting plate fixedly connected to the ball nut and a second mounting plate fixedly connected to the sliding sleeve. Two connecting arcs are arranged between the first mounting plate and the second mounting plate. An inner ring and an outer ring are arranged on the first mounting plate and the second mounting plate. An internal gear ring is rotatably connected to the inner side wall of the outer ring. Gears meshing with the internal gear ring are arranged on the two connecting arcs, the first mounting plate and the second mounting plate. The number of the gears is the same as that of the needle-shaped applicators. A second driving part is arranged on the first mounting plate. The output end of the second driving part is fixedly connected to one of the gears. A plurality of racks meshing with the gears are radially slidably connected between the first mounting plate and the second mounting plate. The needle-shaped applicators are arranged at the inner ends of the racks.

[0009] Preferably, a plurality of sliding grooves equal in number to the racks are radially formed between the first mounting plate and the second mounting plate. The respective racks are respectively slidably connected to the corresponding sliding grooves.

[0010] Preferably, the needle-shaped applicator includes a hollow tube. The lower end of the hollow tube has a conical tip. A plurality of micropores are arranged at the connection between the hollow tube and the conical tip.

[0011] Preferably, the hollow tube includes an inner tube and an outer tube. The outer tube is sleeved outside the inner tube. The upper end of the inner tube passes through the outer tube and is fixedly connected to the rack. A limiting plate is fixedly arranged on the outer wall of the outer tube. An elastic component is arranged between the limiting plate and the rack.

[0012] Preferably, an external thread is arranged on the outer wall of the outer tube. An internal thread adapted to the external thread is arranged on the inner wall of the limiting plate.

[0013] Preferably, the elastic component includes an elastic member and two annular dovetail sliders arranged at both ends of the elastic member. Annular dovetail chutes adapted to the annular dovetail sliders are respectively arranged on the lower surface of the inner end of the rack and the upper surface of the limiting plate.

[0014] Preferably, a first driving part is arranged on the U-shaped bracket. The output end of the first driving part is fixedly connected to the ball screw.

[0015] Compared with the prior art, the present invention is provided with a combination of a traction agricultural machine, a U-shaped bracket, a medicine box, a diverter, a main pipe, a liquid pump, branch pipes, an avoidance groove, a ball screw, a ball nut, a guide rod, a sliding sleeve, a connecting member and a needle-shaped applicator. The traction agricultural machine moves to the position of vegetables between the vegetable planting rows, rotates the ball screw, and under the guiding action of the guide rod on the sliding sleeve, the ball screw drives the ball nut to descend. The ball nut drives a plurality of needle-shaped applicators to be evenly inserted around the roots of the vegetables through the connecting member. The liquid pump transports the liquid medicine in the medicine box to the needle-shaped applicators, so that the liquid medicine is evenly sprayed around the roots of the vegetables, realizing precise application of medicine. It will not only cause damage to the roots of the vegetables, but also enable the liquid medicine to be evenly distributed around the roots of the vegetables, improving the control effect on pests and diseases. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front view structural schematic diagram of the present invention;

[0017] Figure 2 is a structural schematic diagram of the connection arc connecting with the first mounting plate and the second mounting plate of the present invention;

[0018] Figure 3 is a top view structural schematic diagram of the connecting member of the present invention;

[0019] Figure 4 is a top view sectional structural schematic diagram of the connecting member of the present invention;

[0020] Figure 5 is a bottom view structural schematic diagram of the connecting member of the present invention;

[0021] Figure 6 is a side view sectional structural schematic diagram of the outer ring of the present invention;

[0022] Figure 7 is a vertical sectional structural schematic diagram of the needle-shaped applicator of the present invention.

[0023] In the figure: 1. Traction agricultural machine; 2. U-shaped bracket; 3. Medicine box; 4. Diverter; 5. Main pipe; 6. Liquid pump; 7. Branch pipes; 8. Avoidance groove; 9. Ball screw; 10. Ball nut; 11. Guide rod; 12. Sliding sleeve; 13. First driving part; 14. First mounting plate; 15. Second mounting plate; 16. Inner ring; 17. Outer ring; 18. Connection arc; 19. Internal gear ring; 20. Gear; 21. Rack; 22. Hollow pipe; 2201. Inner pipe; 2202. Outer pipe; 23. Conical tip; 24. Micro holes; 25. Limiting plate; 26. Elastic member; 27. Annular dovetail slider; 28. Annular dovetail chute; 29. Second driving part; 30. Chute. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the technical solution of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0025] As Figures 1 to 7 shown, a plant root drug application device includes a towing agricultural machine 1 and a medicine box 3. A U-shaped bracket 2 is provided on the towing agricultural machine 1, and a diverter 4 is provided on the U-shaped bracket 2. The diverter 4 is a hollow tubular structure or a hollow disk-shaped structure. A main pipe 5 is connected between the diverter 4 and the medicine box 3. A liquid pump 6 is provided on the main pipe 5, and a plurality of branch pipes 7 are connected to the diverter 4.

[0026] An avoidance groove 8 is formed at the bottom of the U-shaped bracket 2. A ball screw 9 is rotatably connected between the inner top wall and the inner bottom wall of the U-shaped bracket 2. A ball nut 10 is threadedly connected to the ball screw 9. A guide rod 11 is provided between the inner top wall and the inner bottom wall of the U-shaped bracket 2. A sliding sleeve 12 is slidably connected to the guide rod 11. A connecting member is provided between the sliding sleeve 12 and the ball nut 10. Needle-shaped drug applicators passing through the avoidance groove 8 are arranged on the connecting member. The number of the needle-shaped drug applicators is the same as the number of the branch pipes 7, and the needle-shaped drug applicators are respectively connected to the respective branch pipes 7.

[0027] During specific use, the towing agricultural machine 1 moves to the position of the vegetables between the vegetable planting rows. The ball screw 9 is rotated. Under the guiding action of the guide rod 11 on the sliding sleeve 12, the ball screw 9 drives the ball nut 10 to descend. The ball nut 10 drives a plurality of needle-shaped drug applicators to be evenly inserted around the roots of the vegetables through the connecting member. The liquid pump 6 transports the liquid medicine in the medicine box 3 to the needle-shaped drug applicators, so that the liquid medicine is evenly sprayed around the roots of the vegetables. After the drug application is completed, the ball screw 9 rotates in the reverse direction, the needle-shaped drug applicators leave the soil, and the towing agricultural machine 1 moves forward again, repeating the above steps to apply medicine to the next vegetable.

[0028] In order to achieve the purpose of accurately applying pesticides to different varieties of vegetables or different growth stages of the same kind of vegetables, preferably, the connecting member includes a first mounting plate 14 fixedly connected to the ball nut 10 and a second mounting plate 15 fixedly connected to the sliding sleeve 12. There are two connecting arcs 18 between the first mounting plate 14 and the second mounting plate 15. An inner ring 16 and an outer ring 17 are provided on the first mounting plate 14 and the second mounting plate 15. An internal gear ring 19 is rotatably connected to the inner side wall of the outer ring 17. Gears 20 meshing with the internal gear ring 19 are arranged on the two connecting arcs 18, the first mounting plate 14 and the second mounting plate 15. The number of gears 20 is the same as the number of needle-shaped pesticide applicators. A second driving part 29 is provided on the first mounting plate 14. The second driving part 29 is a motor. The output end of the second driving part 29 is fixedly connected to one of the gears 20. A plurality of racks 21 meshing with the gears 20 are radially slidably connected between the first mounting plate 14 and the second mounting plate 15. The needle-shaped pesticide applicators are arranged at the inner ends of the racks 21.

[0029] Specifically, since the root systems of different kinds of vegetables have differences in the radial direction during the growth and development process, and the root systems of the same kind of vegetables also have differences in the radial direction at different growth and development stages. Therefore, the pesticide application position can be adjusted according to the differences in the radial distribution of the vegetable root systems, so as to achieve a better pest control effect. When it is necessary to increase the pesticide application distance in the radial direction, the second driving part 29 drives the gear 20 fixedly connected to its output end to rotate. While this gear 20 drives the rack 21 meshing with it to move radially outward, it drives the internal gear ring 19 to rotate. The internal gear ring 19 drives other gears 20 to rotate. These gears 20 respectively drive the racks 21 meshing with them to move radially outward, so that all the racks 21 drive all the needle-shaped pesticide applicators to move radially outward, increasing the pesticide application distance, performing accurate pesticide application, and improving the pest control effect. When it is necessary to reduce the pesticide application distance in the radial direction, the second driving part 29 drives the gear 20 fixedly connected to its output end to rotate in the reverse direction. While this gear 20 drives the rack 21 meshing with it to move radially inward, it drives the internal gear ring 19 to rotate in the reverse direction. The internal gear ring 19 drives other gears 20 to rotate in the reverse direction. These gears 20 respectively drive the racks 21 meshing with them to move radially inward, so that all the racks 21 drive all the needle-shaped pesticide applicators to move radially inward, reducing the pesticide application distance, performing radial accurate pesticide application, and improving the pest control effect.

[0030] In order to achieve the purpose of improving the pest control effect, preferably, a number of sliding grooves 30 same as the number of the racks 21 are radially formed between the first mounting plate 14 and the second mounting plate 15. Each rack 21 is respectively slidably connected to the corresponding sliding groove 30. Through the setting of the sliding grooves 30, the sliding grooves 30 play a role of guiding and limiting the radial movement of the racks 21, improving the radial movement precision of the needle-shaped pesticide applicators, performing accurate pesticide application, and improving the pest control effect.

[0031] To achieve the purpose of improving the control effect on pests and diseases, preferably, the needle-shaped applicator includes a hollow tube 22, the lower end of the hollow tube 22 has a conical tip 23, and a plurality of micropores 24 are arranged at the connection between the hollow tube 22 and the conical tip 23.

[0032] Specifically, through the setting of the conical tip 23, during application, the conical tip 23 can reduce the contact area with the soil, which is beneficial to stress concentration and facilitates the smooth insertion of the needle-shaped applicator into the soil for application. After the liquid medicine enters the hollow tube 22, it diffuses from each micropore 24 to the roots of vegetables under high pressure, further improving the uniformity of application and the control effect on pests and diseases.

[0033] To achieve the purpose of improving the control effect on pests and diseases, preferably, the hollow tube 22 includes an inner tube 2201 and an outer tube 2202. The outer tube 2202 is sleeved outside the inner tube 2201. The upper end of the inner tube 2201 passes through the outer tube 2202 and is fixedly connected to the rack 21. A limiting plate 25 is fixedly arranged on the outer wall of the outer tube 2202, and an elastic component is arranged between the limiting plate 25 and the rack 21.

[0034] Specifically, during the working process, when the limiting plate 25 is not in contact with the soil, only the needle-shaped applicator is in contact with the soil, the contact surface is small, the stress is more concentrated, and the outer tube 2202 shields the micropores 24 under the elastic force of the elastic component, so that the needle-shaped applicator will not spray liquid medicine when it does not reach the application depth, realizing precise application and saving liquid medicine. After reaching the application position, the needle-shaped applicator continues to move downward, the limiting plate 25 contacts the soil, and the contact surface instantaneously increases. The elastic potential energy of the elastic component is not enough to overcome the pressure of the ground soil on the limiting plate 25. At this time, the outer tube 2202 does not descend with the inner tube 2201, and the micropores 24 on the inner tube 2201 are exposed to apply medicine to the roots of vegetables. During the rising process after application, the limiting plate 25 separates from the ground soil, and under the action of the elastic potential energy of the elastic component, the outer tube 2202 shields the micropores 24 on the inner tube 2201 again, preventing soil from entering the micropores 24 and causing blockage of the micropores 24, realizing fixed-depth precise application and improving the control effect on pests and diseases.

[0035] To achieve the purpose of precisely applying medicine to different varieties of vegetables or different growth stages of the same kind of vegetables, preferably, an external thread is arranged on the outer wall of the outer tube 2202, and an internal thread adapted to the external thread is arranged on the inner wall of the limiting plate 25.

[0036] The elastic component includes an elastic member 26 and two annular dovetail sliders 27 arranged at both ends of the elastic member 26. Annular dovetail grooves 28 adapted to the annular dovetail sliders 27 are respectively arranged on the lower surface of the inner end of the rack 21 and the upper surface of the limiting plate 25.

[0037] Specifically, since the root systems of different types of vegetables have differences in the vertical distribution during the growth and development process, and the root systems of the same type of vegetables also have differences in the vertical distribution at different growth and development stages. Therefore, the application position can be adjusted according to the differences in the vertical distribution of the vegetable root systems, so as to achieve a better pest control effect. When the vegetable root system is distributed deeper and the application depth needs to be increased, the limiting plate 25 can be rotated to move the limiting plate 25 upward along the outer tube 2202, increasing the distance between the limiting plate 25 and the conical tip 23 to increase the application depth and perform longitudinal precise application to improve the pest control effect. When the vegetable root system is distributed shallower and the application depth needs to be reduced, the limiting plate 25 can be rotated in the reverse direction to move the limiting plate 25 downward along the outer tube 2202, reducing the distance between the limiting plate 25 and the conical tip 23 to reduce the application depth and perform longitudinal precise application to improve the pest control effect.

[0038] Preferably, a first driving part 13 is arranged on the loop-shaped bracket 2, and the output end of the first driving part 13 is fixedly connected to the ball screw 9. Through the arrangement of the first driving part 13, the lifting of the needle-shaped applicator is controlled by the first driving part 13, eliminating the need for manual rotation and saving labor.

[0039] Compared with the prior art, the present invention is provided with a combination of a towing agricultural machine 1, a loop-shaped bracket 2, a medicine box 3, a diverter 4, a main pipe 5, a liquid pump 6, a branch pipe 7, an avoidance groove 8, a ball screw 9, a ball nut 10, a guide rod 11, a sliding sleeve 12, a connecting piece and a needle-shaped applicator. The towing agricultural machine 1 moves to the vegetable position between the vegetable planting rows, rotates the ball screw 9, and under the guiding action of the guide rod 11 on the sliding sleeve 12, the ball screw 9 drives the ball nut 10 to descend. The ball nut 10 drives a plurality of needle-shaped applicators to be evenly inserted around the vegetable roots through the connecting piece. The liquid pump 6 transports the liquid medicine in the medicine box 3 to the needle-shaped applicator, so that the liquid medicine is evenly sprayed around the vegetable roots, realizing precise application. It not only does not damage the vegetable roots, but also enables the liquid medicine to be evenly distributed around the vegetable roots, improving the pest control effect.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A plant root pesticide application device, comprising a traction agricultural machine (1) and a pesticide box (3), characterized in that: The traction agricultural machine (1) is provided with a circular bracket (2), the circular bracket (2) is provided with a flow divider (4), a main pipe (5) is connected between the flow divider (4) and the medicine box (3), a liquid pump (6) is provided on the main pipe (5), and a plurality of branch pipes (7) are connected to the flow divider (4); The bottom of the circular bracket (2) is provided with an avoidance groove (8), a ball screw (9) is rotatably connected between the inner top wall and the inner bottom wall of the circular bracket (2), a ball nut (10) is threadedly connected to the ball screw (9), a guide rod (11) is provided between the inner top wall and the inner bottom wall of the circular bracket (2), a sliding sleeve (12) is slidably connected to the guide rod (11), a connecting piece is provided between the sliding sleeve (12) and the ball nut (10), and a needle-shaped applicator is arranged on the connecting piece and extends from the avoidance groove (8), the number of the needle-shaped applicators is the same as the number of the branch pipes (7), and the needle-shaped applicators are respectively connected to each branch pipe (7).

2. The plant root pesticide application device according to claim 1, characterized in that: The connecting member comprises a first mounting plate (14) fixedly connected to the ball nut (10) and a second mounting plate (15) fixedly connected to the sliding sleeve (12); two connecting arcs (18) are arranged between the first mounting plate (14) and the second mounting plate (15); an inner ring (16) and an outer ring (17) are arranged on the first mounting plate (14) and the second mounting plate (15); an inner gear ring (19) is rotatably connected to the inner side wall of the outer ring (17); the two connecting arcs (18), the first mounting plate (14) and the second mounting plate (15) are rotatably connected to the inner side wall of the outer ring (17); A gear (20) meshing with the inner gear ring (19) is arranged on the mounting plate (15), and the number of the gears (20) is the same as the number of the needle-shaped applicators. A second driving part (29) is arranged on the first mounting plate (14), and the output end of the second driving part (29) is fixedly connected to one of the gears (20). A plurality of racks (21) meshing with the gears (20) are radially slidably connected between the first mounting plate (14) and the second mounting plate (15), and the needle-shaped applicators are arranged at the inner end of the racks (21).

3. The plant root pesticide application device according to claim 2, characterized in that: A number of sliding grooves (30) equal to the number of racks (21) are radially opened between the first mounting plate (14) and the second mounting plate (15), and each rack (21) is slidably connected to a corresponding sliding groove (30).

4. The plant root pesticide application device according to claim 2, characterized in that: The needle-shaped applicator comprises a hollow tube (22), the lower end of the hollow tube (22) is provided with a conical tip (23), and a plurality of micropores (24) are arranged at the connection between the hollow tube (22) and the conical tip (23).

5. The plant root pesticide application device according to claim 4, characterized in that: The hollow tube (22) comprises an inner tube (2201) and an outer tube (2202); the outer tube (2202) is sleeved on the outside of the inner tube (2201); the upper end of the inner tube (2201) passes through the outer tube (2202) and is fixedly connected to the rack (21); a limit plate (25) is fixedly provided on the outer wall of the outer tube (2202); and an elastic component is provided between the limit plate (25) and the rack (21).

6. The plant root pesticide application device according to claim 5, characterized in that: The outer wall of the outer tube (2202) is provided with an external thread, and the inner wall of the limiting plate (25) is provided with an internal thread matching the external thread.

7. The plant root pesticide application device according to claim 6, characterized in that: The elastic component comprises an elastic member (26) and two annular dovetail sliders (27) arranged at both ends of the elastic member (26); the lower surface of the inner end of the rack (21) and the upper surface of the limit plate (25) are respectively provided with annular dovetail grooves (28) adapted to the annular dovetail sliders (27).

8. The plant root pesticide application device according to claim 1, characterized in that: The circular bracket (2) is provided with a first driving part (13), and the output end of the first driving part (13) is fixedly connected to the ball screw (9).

Images