Pesticide spraying device for corn planting

Abstract

The invention discloses a pesticide spraying device for corn planting, and belongs to the technical field of agricultural planting.The pesticide spraying device comprises a frame, supports are symmetrically fixed to the upper surface of the frame, a lifting frame is arranged between the two supports, and the lifting frame is slidably connected with the frame; first electric telescopic rods are jointly fixed to the interior of the lifting frame and the upper surface of the vehicle frame, and two first fixing shafts are jointly fixed between the two supports. The device drives a lifting frame, a linkage gear, a screw rod, a transmission belt and other structures through an electric telescopic rod, multi-dimensional unfolding and folding of a main swing frame, a telescopic frame, a secondary swing frame and a pesticide spraying frame are achieved, and a trigger gear at the top end of a rotating cylinder is meshed with a through groove tooth groove to drive a nozzle to rotate and spray. The corn pesticide sprayer has the advantages of adapting to plant heights and line spacing in different growth stages of corn, saving labor in operation, uniformly spraying pesticide liquid, being compact in volume after being folded, being convenient to move and store in a field, and improving pesticide spraying efficiency and pest control effect.

Description

Technical Field

[0001] This invention relates to the field of agricultural planting technology, and in particular to a spraying device for corn planting. Background Technology

[0002] As one of my country's major grain crops, pest and disease control is a crucial aspect of ensuring yield during corn cultivation, and the efficiency and effectiveness of pesticide application directly impact corn growth. Existing corn pesticide application equipment has several limitations:

[0003] The spraying range is fixed, which cannot flexibly cover planting areas with different row spacing, and distant crops are prone to spraying blind spots;

[0004] The unfolding and folding of the device is cumbersome and requires manual assistance for adjustment, which not only consumes manpower but also affects work efficiency. In addition, the folded size is large and inconvenient for field movement and storage.

[0005] With a fixed nozzle angle and spraying range, the pesticide spraying is uneven, and some areas may have too much or too little pesticide, which affects the control of pests and diseases.

[0006] Therefore, a pesticide spraying device for corn planting is needed to solve the problems mentioned above. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a spraying device for corn planting, which solves problems such as fixed spraying range, poor adaptability, cumbersome operation, and uneven spraying in existing devices.

[0008] Technical Solution: To solve the above-mentioned technical problems, according to one aspect of the present invention, more specifically, a spraying device for corn planting, including a frame, supports symmetrically fixed on the upper surface of the frame, a lifting frame disposed between two supports, the lifting frame being slidably connected to the frame, an electric telescopic rod fixed inside the lifting frame and together with the upper surface of the frame, two fixed shafts fixed between the two supports, a main swing frame rotatably connected to the outer surface of the fixed shaft, a telescopic frame slidably connected inside the main swing frame, a fixed frame connected to the end of the telescopic frame away from the main swing frame, a fixed shaft two fixed to the bottom end of the fixed frame, a secondary swing frame rotatably connected to the outer surface of the fixed shaft two, a plurality of sliding grooves three penetrating through the surface of the secondary swing frame, a connecting frame slidably connected inside the sliding grooves three, a spraying frame rotatably connected to both the front and rear ends of the connecting frame, a pesticide box fixedly penetrating through the spraying frame, a plurality of rotating cylinders rotatably connected inside the pesticide box, the bottom end of the rotating cylinder penetrating below the spraying frame and connected to a nozzle;

[0009] The lower surface of the vehicle frame has a bottom groove, and a base frame is slidably connected inside the bottom groove. The bottom of the lifting frame extends through the bottom groove and is fixedly connected to the upper surface of the base frame. Two running wheels are provided on both the left and right sides of the base frame. A medicine box is fixed at the rear of the upper surface of the vehicle frame, and a spraying pump is provided on both the left and right sides of the medicine box.

[0010] Furthermore, multiple electric telescopic rods are fixed to the bottom of the front and rear ends of the vehicle frame, and telescopic feet are provided at the bottom of the front and rear ends of the vehicle frame through the corresponding electric telescopic rods.

[0011] Furthermore, a fixed gear is fixed to one end of the main swing frame located outside the fixed shaft, and the fixed gear meshes with the lifting frame. A transmission gear is rotatably connected to the rear inner surface of the main swing frame. A bevel gear is fixed to the front surface of the transmission gear, and a bevel gear is meshed with the outer side of the bevel gear. A screw is fixed to the middle of the bevel gear, and the screw is rotatably connected to the main swing frame. The outer surface of the screw is threaded to the telescopic frame. A driven gear is rotatably connected inside the telescopic frame. A spur gear and a spur gear are rotatably connected inside the fixed frame, and the spur gear meshes with the spur gear. A transmission belt connects the driven gear and the spur gear. A fixed gear is fixed to one end of the secondary swing frame located outside the fixed shaft, and the spur gear meshes with the fixed gear. A transmission belt connects the rear inner surface of the secondary swing frame. There is a transmission gear two, and a bevel gear three is fixed to the front surface of the transmission gear two. A bevel gear four is meshed with the outer side of the bevel gear three. A screw two is fixed to the middle of the bevel gear four. The screw two is rotatably connected to the interior of the secondary swing frame. A through-type sliding groove one is opened on the lower surface of the interior of the secondary swing frame. A threaded plate is threaded to the outer surface of the screw two. The bottom end of the threaded plate is slidably connected to the interior of the sliding groove one. The bottom end of the threaded plate is located on the lower surface of the secondary swing frame and is fixed with a sliding plate. Multiple sliding grooves two are opened through the surface of the secondary swing frame. A through-type through groove is opened on the upper surface of the sliding groove three. A slide is opened on the side of the connecting frame and the spraying frame near the vehicle frame. A slider is slidably connected inside the slide. A slide frame is slidably connected inside the sliding groove two. The sliding plate is fixedly connected to the bottom of multiple slide frames. The front and rear ends of the slide frame are rotatably connected to two sliders through two connecting rods.

[0012] Furthermore, the top of the rotating drum extends through to the upper surface of the spraying rack and is fixed with a trigger gear. A transmission belt is provided on the outer surface of several rotating drums. A through hole is opened on the outer surface of the rotating drum inside the medicine box, and the inside of the medicine box is connected to the rotating drum through the through hole.

[0013] Furthermore, the outer surface of the second fixed shaft is connected to the second transmission gear through a toothed groove, the outer surface of the first fixed shaft is connected to the first transmission gear through a toothed groove, and the left and right sides of the lifting frame are connected to the two first fixed gears through toothed grooves.

[0014] Furthermore, the top of the driven gear extends through to the upper surface of the telescopic frame, and the upper surface inside the main swing frame is provided with several toothed grooves, through which the main swing frame meshes with the driven gear.

[0015] Furthermore, the inner surface of the through groove is provided with a plurality of toothed grooves, which are adapted to the trigger gear.

[0016] Furthermore, the spraying pump is connected to the medicine box on the corresponding side via a spiral flexible mesh.

[0017] The beneficial effects of the pesticide spraying device for corn planting of the present invention are as follows:

[0018] (1) This invention uses an electric telescopic rod to drive the lifting frame to rise and fall, linking the main swing frame, telescopic frame, secondary swing frame, and spraying frame to achieve multi-dimensional expansion and contraction, extending the spraying arm's extension length to cover planting areas with different row spacings and effectively eliminating spraying blind spots. Simultaneously, during spraying, the sliding of the spraying frame triggers the gears to mesh with the through-groove teeth, driving all rotating drums and nozzles to rotate synchronously. Combined with the nozzle tilt angle, this expands the spraying range of a single nozzle, further ensuring the pesticide is evenly sprayed on all parts of the corn plant, avoiding uneven local pesticide application, improving pest and disease control effectiveness, and reducing pesticide waste.

[0019] (2) The unfolding and folding process of this invention is achieved through the linkage of gears, screws, transmission belts and other structures. There is no need for manual adjustment of each component. Only the electric telescopic rod and the spraying pump need to be controlled to complete the preparation and finishing of the operation, which greatly saves labor costs. The folded device is compact in size and, with the running wheel design, is easy to move and store on the field operation path, improving the flexibility of operation. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 3 This is a bottom-view structural diagram of the present invention;

[0024] Figure 4 This is a schematic diagram of the main pendulum frame and the secondary pendulum frame in this invention;

[0025] Figure 5 For the present invention Figure 4 A schematic diagram of the cross-sectional structure;

[0026] Figure 6 For the present invention Figure 5 A magnified structural diagram of point A in the middle;

[0027] Figure 7 For the present invention Figure 5 A magnified structural diagram of point B in the middle;

[0028] Figure 8 This is a schematic diagram of the secondary swing frame in the present invention;

[0029] Figure 9 This is a schematic diagram of the connecting frame and the spraying frame in this invention;

[0030] Figure 10 This is a schematic diagram of the structure of the medicine dispenser in this invention;

[0031] Figure 11 This is a side sectional view of the spraying rack and connecting frame in this invention;

[0032] Figure 12 This is a side sectional view of the medicine box and rotating cylinder of the present invention.

[0033] In the diagram: 1. Frame; 2. Bracket; 3. Lifting frame; 4. Electric telescopic rod one; 5. Fixed shaft one; 6. Main swing frame; 7. Telescopic frame; 8. Fixed frame; 9. Fixed shaft two; 10. Secondary swing frame; 11. Fixed gear one; 12. Transmission gear one; 13. Bevel gear one; 14. Bevel gear two; 15. Screw one; 16. Driven gear; 17. Spur gear one; 18. Spur gear two; 19. Fixed gear two; 20. Transmission belt one; 21. Transmission gear two; 22. Bevel gear three; 23. Bevel gear four; 24. Screw 2; 25. Slide 1; 26. Threaded plate; 27. Slide plate; 28. Slide 2; 29. ​​Slide 3; 30. Through groove; 31. Connecting frame; 32. Sprayer rack; 33. Slide rail; 34. Slider; 35. Slide frame; 36. Connecting rod; 37. Medicine box; 38. Rotary drum; 39. Trigger gear; 40. Nozzle; 41. Transmission belt 2; 42. Through hole; 43. Base frame; 44. Running wheel; 45. Medicine box; 46. Sprayer pump; 47. Electric telescopic rod 2; 48. Telescopic support leg; 49. Bottom groove. Detailed Implementation

[0034] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0035] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Reference Figures 1-12 A spraying device for corn planting includes a frame 1. Supports 2 are symmetrically fixed to the upper surface of the frame 1. A lifting frame 3 is arranged between the two supports 2, and the lifting frame 3 is slidably connected to the frame 1. An electric telescopic rod 4 is fixed inside the lifting frame 3 and together with the upper surface of the frame 1. Two fixed shafts 5 are fixed between the two supports 2. A main swing frame 6 is rotatably connected to the outer surface of the fixed shafts 5. A telescopic frame 7 is slidably connected inside the main swing frame 6. A fixed frame 8 is connected to the end of the telescopic frame 7 away from the main swing frame 6. A fixed shaft 9 is fixed to the bottom of the fixed frame 8. A secondary swing frame 10 is rotatably connected to the outer surface of the fixed shaft 9. Multiple sliding grooves 29 are opened through the surface of the secondary swing frame 10. A connecting frame 31 is slidably connected inside the sliding grooves 29. A spraying frame 32 is rotatably connected to both the front and rear ends of the connecting frame 31. A pesticide box 37 is fixed through the spraying frame 32. Several rotating cylinders 38 are rotatably connected inside the pesticide box 37. The bottom ends of the rotating cylinders 38 extend below the spraying frame 32 and are connected to nozzles 40. Figure 12 As shown, it is tilted, allowing for a wider spraying range when rotated;

[0037] The lower surface of the frame 1 is provided with a bottom groove 49, and the base frame 43 is slidably connected inside the bottom groove 49. The bottom of the lifting frame 3 extends through the bottom groove 49 and is fixedly connected to the upper surface of the base frame 43. Two running wheels 44 are provided on the left and right sides of the base frame 43. When the lifting frame 3 rises, it will drive the base frame 43 to slide inside the bottom groove 49, thereby causing the four running wheels 44 to leave the ground, so that the frame 1 directly contacts the ground, thereby providing overall stability during spraying operations.

[0038] A medicine tank 45 is fixed at the rear of the upper surface of the frame 1. A medicine pump 46 is installed on both the left and right sides of the medicine tank 45. The medicine pump 46 is used to pressurize and deliver the medicine liquid inside the medicine tank 45. The medicine pump 46 is connected to the medicine box 37 on the corresponding side through a spiral hose mesh. When the device structure switches between folded and extended states (such as when the secondary swing frame 10 rotates to open or folds, or when the medicine rack 32 and the connecting frame 31 rotate to open or slide together to adjust their positions), the spiral structure of the spiral hose can be stretched (extended) or contracted (shortened) synchronously. The length adapts to the displacement of the components, and no additional pipeline arrangement is required.

[0039] Preferably, multiple electric telescopic rods 47 are fixed to the bottom of the front and rear ends of the frame 1, and telescopic feet 48 are provided at the bottom of the front and rear ends of the frame 1 through the corresponding electric telescopic rods 47.

[0040] Preferably, a fixed gear 11 is fixed at one end of the main swing frame 6 located outside the fixed shaft 5. The fixed gear 11 meshes with the lifting frame 3. A transmission gear 12 is rotatably connected to the rear surface inside the main swing frame 6. A bevel gear 13 is fixed to the front surface of the transmission gear 12. A bevel gear 14 meshes with the outer side of the bevel gear 13. A screw 15 is fixed to the middle of the bevel gear 14. The screw 15 is rotatably connected to the main swing frame 6. The outer surface of the screw 15 is threaded to the telescopic frame 7. A driven gear 16 is rotatably connected inside the telescopic frame 7. A spur gear 17 and a spur gear 18 are rotatably connected inside the fixed frame 8. The spur gear 17 and the spur gear 18 mesh. A transmission belt 20 drives the driven gear 16 and the spur gear 17. A fixed gear 19 is fixed at one end of the secondary swing frame 10 located outside the fixed shaft 9. The spur gear 18 meshes with the fixed gear 19. A transmission gear 21 is rotatably connected to the rear surface inside the secondary swing frame 10. A bevel gear 22 is fixed to the front surface of transmission gear 21. A bevel gear 23 is meshed with the outer side of bevel gear 22. A screw 24 is fixed to the middle of bevel gear 23. The screw 24 is rotatably connected to the interior of the secondary swing frame 10. A through-type sliding groove 25 is opened on the lower surface of the interior of the secondary swing frame 10. A threaded plate 26 is threaded to the outer surface of the screw 24. The bottom end of the threaded plate 26 is slidably connected to the interior of the sliding groove 25. The bottom end of the threaded plate 26 is located on the lower surface of the secondary swing frame 10 and is fixed. The slide plate 27 is fixed, and the surface of the secondary frame 10 is provided with multiple sliding grooves 28. The upper surface of the sliding groove 29 is provided with a through groove 30. The connecting frame 31 and the spraying frame 32 are provided with a slide 33 on the side near the frame 1. The slide 33 is slidably connected to the slider 34. The slide 28 is slidably connected to the slide frame 35. The slide plate 27 is fixedly connected to the bottom of the multiple slide frames 35. The front and rear ends of the slide frame 35 are rotatably connected to the two sliders 34 through two connecting rods 36 respectively.

[0041] Preferably, the top of the rotating drum 38 extends through to the upper surface of the medicine dispenser 32 and is fixed with a trigger gear 39. A transmission belt 41 is provided on the outer surface of several rotating drums 38. A through hole 42 is opened on the outer surface of the rotating drum 38 inside the medicine box 37. The inside of the medicine box 37 is connected to the rotating drum 38 through the through hole 42.

[0042] Preferably, the outer surface of the fixed shaft 9 is connected to the transmission gear 21 via a toothed groove, such as... Figure 7 As shown, when the secondary swing frame 10 rotates around the outer side of the fixed shaft 2 9, the transmission gear 21 and the fixed shaft 2 9 form a planetary gear transmission relationship;

[0043] The outer surface of the fixed shaft 5 is connected to the transmission gear 12 through a toothed groove, such as Figure 6 As shown, when the main swing frame 6 rotates around the outside of the fixed shaft 5, the transmission gear 12 and the fixed shaft 5 form a planetary gear transmission relationship.

[0044] The left and right sides of the lifting frame 3 are connected to two fixed gears 11 through tooth grooves. When the lifting frame 3 moves up and down, the two main swing frames 6 will rotate through the two fixed gears 11.

[0045] Preferably, the driven gear 16 extends through the top to the upper surface of the telescopic frame 7, and the upper surface of the main swing frame 6 is provided with several toothed grooves. The main swing frame 6 is connected to the driven gear 16 through the toothed grooves. When the telescopic frame 7 slides inside the main swing frame 6, the driven gear 16 rotates due to the toothed grooves, thereby causing the secondary swing frame 10 to swing through the transmission belt 20, spur gear 17, spur gear 18, and fixed gear 19.

[0046] Preferably, the inner surface of the through groove 30 is provided with a plurality of toothed grooves, which are adapted to the trigger gear 39. When the trigger gear 39 moves into the through groove 30 along with the medicine dispenser 32, it will contact the toothed grooves to form a meshing connection.

[0047] Working process: The toothed grooves on both sides of the lifting frame 3 mesh with the fixed gear 11, driving the main swing frames 6 and other structures on both sides to rotate outward and downward, switching them from the vertical state to the horizontal state. Figure 1 The horizontal state is shown. During the rotation of the main swing frame 6, the transmission gear 12 rotates around the outside of the fixed shaft 5 along with the main swing frame 6. It rotates due to the meshing of the tooth grooves on the surface of the fixed shaft 5, which in turn drives the bevel gear 13 and bevel gear 14 to drive the screw 15 to rotate. The rotating screw 15 drives the telescopic frame 7 to slide out. The driven gear 16 inside the telescopic frame 7 is limited by the tooth grooves on the upper inner side of the main swing frame 6. It rotates synchronously when sliding, and is driven by the transmission belt 20, spur gear 17, and spur gear 18 in sequence, which drives the fixed gear 19, the secondary swing frame 10 and several spraying frames 32 to rotate and unfold. This causes the secondary swing frame 10 to change from a folded state that is close to the bottom of the main swing frame 6 to an unfolded state in the same direction, extending the overall extension length of the spraying arm and realizing the spraying coverage of corn crops at a distance.

[0048] When the secondary swing frame 10 rotates and opens, the transmission gear 21 rotates around the outer side of the fixed shaft 29 along with the secondary swing frame 10. Due to the meshing of the teeth on the surface of the fixed shaft 29, it rotates, driving the bevel gears 22 and 23, which in turn cause the screw 24 to rotate. The screw 24 drives the threaded plate 26 to slide along the slide groove 25, which in turn drives multiple slides 35 to slide synchronously via the slide plate 27. When the slides 35 slide, they cooperate with the corresponding sliders 34 via two connecting rods 36, pushing the two sprayers 32 to rotate and unfold (the unfolded state is as follows). Figure 9 As shown in the attached diagram), the device is now fully deployed and in working condition. Figures 1-11 (As shown).

[0049] The operator starts two spray pumps 46. The pesticide solution stored in the pesticide tank 45 is delivered to each pesticide box 37 through a spiral hose net. The pesticide solution enters the rotating drum 38 through the through hole 42 and is finally sprayed onto the corn crop through the nozzle 40.

[0050] During spraying, the electric telescopic rod 47 at the front or rear can be extended or retracted, causing the telescopic support leg 48 to partially lift the push device, which in turn drives the assembly consisting of the spraying frame 32 and the connecting frame 31 to slide downwards along the slide groove 29. During the sliding process, any trigger gear 39 enters the through groove 30 and meshes with the toothed groove on the inner surface of the through groove 30, driving all associated rotating drums 38 and nozzles 40 to rotate via the transmission belt 41, further expanding the spraying range.

[0051] Post-work process:

[0052] To stop spraying: First, shut down both spraying pumps 46 to cut off the pesticide delivery, and stop spraying from nozzle 40. If nozzle 40 is rotating, control the electric telescopic rod 47 to reset, causing the entire device to tilt upwards in the opposite direction. This allows the assembly consisting of spraying frame 32 and connecting frame 31 to slide back along slide groove 29, triggering gear 39 to disengage from the toothed groove in through groove 30, and stopping the rotation of drum 38 and nozzle 40.

[0053] The spraying frame 32 retracts: The control transmission structure causes the screw 24 to rotate in the opposite direction (opposite to the direction of rotation when unfolding), which drives the threaded plate 26 to slide in the opposite direction along the slide groove 25. The slide plate 27 simultaneously resets, thereby pulling multiple slides 35 back along the slide groove 28. The slides 35 pull the slider 34 along the slide rail 33 through the connecting rod 36, causing the two spraying frames 32 to rotate and retract towards the connecting frame 31, returning to the state of being in contact with the secondary swing frame 10.

[0054] The secondary swing frame 10 folds as follows: When the screw 24 rotates in the opposite direction, the transmission gear 21 rotates in the opposite direction around the fixed shaft 9 along with the secondary swing frame 10. Through the reverse transmission of the bevel gear 4 23 and bevel gear 3 22, and in conjunction with the reverse rotation of the driven gear 16 (driven by the retraction of the telescopic frame 7), the secondary swing frame 10 rotates towards the main swing frame 6 through the linkage of the transmission belt 1 20, spur gear 1 17, spur gear 2 18, and fixed gear 2 19, and finally folds down to the bottom of the main swing frame 6, restoring the close-fitting state.

[0055] Telescopic frame 7 retracts: The screw 15 inside the main swing frame 6 rotates in the opposite direction (driven by the reverse rotation of the transmission gear 12), and under the action of the threaded connection with the telescopic frame 7, it pushes the telescopic frame 7 from the extended state back into the main swing frame 6 until it is fully retracted.

[0056] Main swing frame 6 is erected: Control the electric telescopic rod 4 to retract, pulling the lifting frame 3 to slide downward along the frame 1. The base frame 43 descends synchronously, and the running wheel 44 re-contacts the ground and supports the device. At the same time, the toothed grooves on both sides of the lifting frame 3 drive the fixed gear 11 to rotate in the opposite direction, causing the main swing frames 6 on both sides to rotate from the horizontal state to the inner and upper side, and finally return to the upright state, fitting with the bracket 2.

[0057] Device ready for movement: After folding, the overall size of the device is reduced, and the running wheels 44 are grounded for support. Operators can push or pull the device along the field work path to move to the next work area or storage location.

[0058] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A spraying device for corn planting, comprising a frame (1), characterized in that: The upper surface of the frame (1) is symmetrically fixed with brackets (2), and a lifting frame (3) is provided between the two brackets (2). The lifting frame (3) is slidably connected to the frame (1). An electric telescopic rod (4) is fixed inside the lifting frame (3) and together with the upper surface of the frame (1). Two fixed shafts (5) are fixed between the two brackets (2). A main swing frame (6) is rotatably connected to the outer surface of the fixed shaft (5). A telescopic frame (7) is slidably connected inside the main swing frame (6). A fixed frame (8) is connected to the end of the telescopic frame (7) away from the main swing frame (6). The bottom end of the fixed frame (8) is fixed with a fixed shaft two (9). The outer surface of the fixed shaft two (9) is rotatably connected to a secondary swing frame (10). The surface of the secondary swing frame (10) is provided with multiple sliding grooves three (29). The sliding grooves three (29) are slidably connected to a connecting frame (31). The front and rear ends of the connecting frame (31) are rotatably connected to a spraying frame (32). The spraying frame (32) is fixed with a medicine box (37) inside. The medicine box (37) is rotatably connected with several rotating cylinders (38). The bottom end of the rotating cylinder (38) extends to the bottom of the spraying frame (32) and is connected to a nozzle (40). The lower surface of the frame (1) is provided with a bottom groove (49), and a base frame (43) is slidably connected inside the bottom groove (49). The bottom of the lifting frame (3) extends through the bottom groove (49) and is fixedly connected to the upper surface of the base frame (43). Two running wheels (44) are provided on both the left and right sides of the base frame (43). A medicine box (45) is fixed behind the upper surface of the frame (1), and a medicine pump (46) is provided on both the left and right sides of the medicine box (45).

2. The spraying device for corn planting according to claim 1, characterized in that: Multiple electric telescopic rods (47) are fixed at the bottom of the front and rear ends of the frame (1), and telescopic feet (48) are provided at the bottom of the front and rear ends of the frame (1) through the corresponding electric telescopic rods (47).

3. The spraying device for corn planting according to claim 1, characterized in that: A fixed gear (11) is fixed at one end of the main swing frame (6) located outside the fixed shaft (5). The fixed gear (11) meshes with the lifting frame (3). A transmission gear (12) is rotatably connected to the rear inner surface of the main swing frame (6). A bevel gear (13) is fixed to the front surface of the transmission gear (12). A bevel gear (14) meshes with the outer side of the bevel gear (13). A screw (15) is fixed in the middle of the bevel gear (14). The screw (15) is rotatably connected to the main swing frame (6). The outer surface of the screw (15) is threadedly connected to the telescopic frame (7). The telescopic frame (7) is rotatably connected to a driven gear (16). The fixed frame (8) is rotatably connected to a spur gear one (17) and a spur gear two (18). The spur gear one (17) and the spur gear two (18) are meshed together. A transmission belt one (20) is connected between the driven gear (16) and the spur gear one (17). The secondary swing frame (10) is fixed with a fixed gear two (19) at one end located outside the fixed shaft two (9). The spur gear two (18) and the fixed gear two (19) are meshed together. A transmission gear two (21) is rotatably connected to the rear surface inside the secondary swing frame (10). A bevel gear three (22) is fixed to the front surface of the transmission gear two (21). A bevel gear four (23) is meshed with the outer side of the bevel gear three (22). A screw two (24) is fixed in the middle of the bevel gear four (23). The screw two (24) is rotatably connected to the interior of the secondary swing frame (10). A through-type sliding groove one (25) is opened on the lower surface of the interior of the secondary swing frame (10). A threaded plate (26) is threaded to the outer surface of the screw two (24). The bottom end of the threaded plate (26) is slidably connected to the interior of the sliding groove one (25). The bottom end of the threaded plate (26) is located on the lower surface of the secondary swing frame (10) and is fixed with a sliding groove one (25). The plate (27) has multiple sliding grooves (28) through the surface of the secondary swing frame (10). The upper surface of the sliding groove (29) has a through groove (30). The connecting frame (31) and the spraying frame (32) have sliding tracks (33) on the side near the vehicle frame (1). The sliding track (33) has a slider (34) slidably connected inside. The sliding groove (28) has a slide frame (35) slidably connected inside. The sliding plate (27) is fixedly connected to the bottom of the multiple slide frames (35). The front and rear ends of the slide frame (35) are rotatably connected to the two sliders (34) through two connecting rods (36).

4. The spraying device for corn planting according to claim 1, characterized in that: The top of the rotating drum (38) extends through to the upper surface of the medicine dispenser (32) and is fixed with a trigger gear (39). A transmission belt (41) is provided on the outer surface of several rotating drums (38). A through hole (42) is opened on the outer surface of the rotating drum (38) inside the medicine box (37). The inside of the medicine box (37) is connected to the rotating drum (38) through the through hole (42).

5. The spraying device for corn planting according to claim 1, characterized in that: The outer surface of the second fixed shaft (9) is connected to the second transmission gear (21) through a tooth groove, the outer surface of the first fixed shaft (5) is connected to the first transmission gear (12) through a tooth groove, and the left and right sides of the lifting frame (3) are connected to the two first fixed gears (11) through tooth grooves.

6. The spraying device for corn planting according to claim 1, characterized in that: The driven gear (16) extends through the top to the upper surface of the telescopic frame (7). The upper surface of the main swing frame (6) is provided with several tooth grooves. The main swing frame (6) is meshed with the driven gear (16) through the tooth grooves.

7. The spraying device for corn planting according to claim 4, characterized in that: The inner surface of the through groove (30) is provided with a plurality of toothed grooves, which are adapted to the trigger gear (39).

8. The spraying device for corn planting according to claim 1, characterized in that: The spraying pump (46) is connected to the medicine box (37) on the corresponding side via a spiral flexible mesh.

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