Pesticide spraying device for corn planting

Abstract

A corn planting pesticide spraying device comprises a main supporting table, an auxiliary supporting rod, an angle adjusting hydraulic cylinder, a main bearing disc, a fastening screw, a longitudinal pesticide spraying rod, a strengthening column, a telescopic frame driving block, a main bearing shaft, a telescopic frame driving hydraulic cylinder, a first starting connecting rod, a first middle connecting rod, a second middle connecting rod, a second tail end connecting rod, a first tail end connecting rod and a second starting connecting rod. A bearing shaft connecting groove is formed in the main supporting table, an auxiliary supporting table is arranged on one side of the main supporting table, an auxiliary rod connecting groove is formed in the auxiliary supporting table, the bearing shaft connecting groove is rotationally connected with the main bearing shaft, hexagonal block mounting grooves are formed in the two sides of the main bearing shaft, main bearing discs are arranged on the two sides of the main bearing shaft, and hexagonal positioning blocks are arranged on one sides of the main bearing discs. And the hexagonal positioning block is matched with the hexagonal block mounting groove and is connected with the hexagonal block mounting groove.

Description

Technical Field

[0001] The utility model relates to the field of corn planting, in particular to a corn planting pesticide spraying device. Background Art

[0002] The existing patent (publication number: CN215531100U) proposes a corn planting pesticide spraying device, including a high-altitude spraying mechanism, a spraying screw, a sliding orifice plate, an active rod, a connecting plate, a limiting rod, a swinging orifice plate, a sliding slider and an atomizing nozzle. The inner wall of the high-altitude spraying mechanism is fixedly connected to a spraying motor for driving the spraying screw to rotate horizontally, and the outer wall of the spraying screw is threadedly connected to a threaded slider for driving the sliding orifice plate to slide horizontally. However, this device "drives the atomizing nozzle to move through a delivery pipe, and realizes the pesticide spraying operation at different high positions of the corn through the movement of the atomizing nozzle." When the pesticide is sprayed from the high-altitude atomizing nozzle and falls on the corn plants, it is difficult to fall on the middle and bottom of the corn plants due to the relatively dense corn plants, which limits the pest control effect on the middle and bottom of the plants, thereby affecting the overall spraying effect. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a corn planting pesticide spraying device. When performing a corn planting pesticide spraying operation, the telescopic frame is started to drive the hydraulic cylinder to pull the telescopic frame drive blocks on the same side closer to each other, so that the telescopic frame is extended. After the telescopic frame is extended, the carrier drives the device forward, and the pesticide spraying ports on both sides of the vertical pesticide spraying rod are used to spray the corn with pesticide. By setting the long rod of the vertical pesticide spraying rod, the whole body of the corn is sprayed synchronously, so that the pesticide spraying is more uniform, and the middle and bottom parts of the corn can also be better sprayed with pesticide, thereby achieving a better pesticide spraying effect.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A corn planting pesticide spraying device includes a main support platform, an auxiliary support rod, an angle adjustment hydraulic cylinder, a main bearing plate, a fastening screw, a longitudinal pesticide spraying rod, a reinforcement column, a telescopic frame driving block, a main bearing shaft, a telescopic frame driving hydraulic cylinder, a starting No. 1 connecting rod, a middle No. 1 connecting rod, a middle No. 2 connecting rod, an end No. 2 connecting rod, an end No. 1 connecting rod, and a starting No. 2 connecting rod. The main support platform has a bearing shaft connecting groove inside, an auxiliary support platform on one side of the main support platform, an auxiliary rod connecting groove inside the auxiliary support platform, the bearing shaft connecting groove is rotatably connected to the main bearing shaft, hexagonal block mounting grooves are provided on both sides of the main bearing shaft, main bearing plates are provided on both sides of the main bearing shaft, a hexagonal positioning block is provided on one side of the main bearing plate, the hexagonal positioning block is adapted to the hexagonal block mounting groove, and the hexagonal positioning block is connected to the hexagonal block The mounting groove, the hexagonal positioning block is inserted into the hexagonal block mounting groove, the main bearing plate and the main bearing shaft are connected by fastening screws, and the other side of the main bearing plate is provided with a side bearing platform and an angle adjustment connecting column. The side bearing platform is located at the lower part of the angle adjustment connecting column, and the bottom of the side bearing platform is provided with a lower positioning hole. The auxiliary support rod is rotatably connected to the auxiliary rod connecting groove, and the two sides of the auxiliary support rod are fixedly connected to the angle adjustment hydraulic cylinder. The end of the hydraulic rod of the angle adjustment hydraulic cylinder has an angle adjustment connecting ring, and the angle adjustment connecting ring is rotatably connected to the angle adjustment connecting column. The outer side of the side bearing platform is fixedly connected to the two sets of telescopic frame driving hydraulic cylinders, and the two telescopic frame driving hydraulic cylinders connected to the same side bearing platform are symmetrically arranged. The end of the hydraulic rod of the telescopic frame driving hydraulic cylinder is fixedly connected to the telescopic frame driving block, and the telescopic frame driving joint is provided on the upper and lower sides of the telescopic frame driving block.

[0006] One side of the telescopic frame driving joint is provided with two groups of telescopic frames symmetrically arranged in an upper and lower direction. The telescopic frame is composed of a middle transition frame, a starting support frame and an end support frame. The middle transition frame is in a central position, and the starting support frame and the end support frame are respectively located on both sides of the middle transition frame. The middle transition frame is composed of multiple groups of transition frame connection units connected to each other. The transition frame connection unit is composed of a middle No. 1 connecting rod and a middle No. 2 connecting rod. The middle of the middle No. 1 connecting rod and the middle No. 2 connecting rod are both provided with a middle connecting platform. The middle connecting platform of the middle No. 1 connecting rod is rotatably connected with the middle connecting platform of the middle No. 2 connecting rod. There is a middle No. 1 joint on both sides of the middle No. 1 connecting rod, and a middle No. 2 connecting rod. There are middle No. 2 joints on both sides of the No. 2 connecting rod, and the middle No. 1 joint and the middle No. 2 joint between adjacent transition frame connection units are rotatably connected. The end support frame is composed of the end No. 2 connecting rod and the end No. 1 connecting rod. One side of the end No. 2 connecting rod has a middle connecting platform, and the other side of the end No. 2 connecting rod has a terminal No. 2 joint. One side of the end No. 1 connecting rod has a middle connecting platform, and the other side of the end No. 1 connecting rod has a terminal No. 1 joint. The middle connecting platform of the end No. 2 connecting rod is rotatably connected to the middle connecting platform of the end No. 1 connecting rod, and the end No. 2 joint of the end support frame is rotatably connected to the middle No. 2 joint on the side of the middle transition frame away from the main support platform.

[0007] The end support frame has an end joint No. 1 that is rotatably connected to the middle joint No. 1 on the side of the middle transition frame away from the main support platform. The starting support frame is composed of a starting connecting rod No. 1 and a starting connecting rod No. 2. The middle parts of the starting connecting rod No. 1 and the starting connecting rod No. 2 are both provided with a middle connecting platform. The middle connecting platform of the starting connecting rod No. 1 is rotatably connected to the middle connecting platform of the starting connecting rod No. 2. One side of the starting connecting rod No. 2 is provided with a starting joint No. 2, and the other side of the starting connecting rod No. 2 has a starting connection point. One side of the starting connecting rod No. 1 is provided with a starting joint No. 1, and the other side of the starting connecting rod No. 1 has a starting connection point. The starting joint No. 2 of the starting support frame is rotatably connected to the middle joint No. 1 on the side of the middle transition frame facing the main support platform. The starting joint No. 1 of the middle transition frame is rotatably connected to the middle joint No. 2 on the side of the middle transition frame facing the main support platform.

[0008] Beneficial effects: 1. When the utility model is used for spraying pesticides for corn planting, the telescopic frame is started to drive the hydraulic cylinder to pull the telescopic frame drive blocks on the same side closer to each other, so that the telescopic frame is extended. After the telescopic frame is extended, the carrier drives the device forward, and the pesticide spraying ports on both sides of the vertical pesticide spraying rod are used to spray pesticides on the corn. Through the long rod setting of the vertical pesticide spraying rod, the whole body of the corn is sprayed synchronously, so that the pesticide spraying is more uniform, and the middle and bottom of the corn can also be better sprayed with pesticides, and the pesticide spraying effect is better.

[0009] 2. One side of the angle-adjusting hydraulic cylinder of the utility model is connected to the angle-adjusting connecting column, so that when the angle-adjusting hydraulic cylinder is extended or retracted, the main supporting plate will rotate counterclockwise or clockwise, thereby adjusting the inclination angle of the longitudinal pesticide spraying boom, thereby changing the longitudinal range of the longitudinal pesticide spraying boom spraying pesticides to both sides, thereby adapting to the spraying operation of corn crops at different heights and enhancing the adaptability of this device.

[0010] 3. A telescopic frame is provided on the side of the side bearing platform of the utility model. The telescopic frame can be extended or retracted by the hydraulic cylinder driving the telescopic frame. When the telescopic frame is extended, pesticide spraying operations can be carried out on corn crops. When the telescopic frame is retracted, the volume is small, which is convenient for transportation and storage.

[0011] 4. The telescopic frames on the same side of the utility model adopt a symmetrical design of two groups, and the corresponding telescopic frames are connected by reinforcing columns, thereby increasing the structural strength of the telescopic frames, enhancing the vibration and impact resistance of the telescopic frames, and further enhancing the service life and safety of this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a corn planting pesticide spraying device described in the utility model.

[0013] Figure 2 This is a partial front cross-sectional view of a corn planting pesticide spraying device described in the utility model.

[0014] Figure 3 This is a top view of a corn planting pesticide spraying device described in the utility model.

[0015] Figure 4 This is a partially enlarged view of the corn planting pesticide spraying device described in the utility model.

[0016] Figure 5 This is a structural schematic diagram of the main support platform described in the present utility model.

[0017] Figure 6 This is a schematic structural diagram of the main carrier plate described in the present utility model. DETAILED DESCRIPTION

[0018] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments:

[0019] Example 1:

[0020] A corn planting pesticide spraying device includes a main support platform 1, an auxiliary support rod 4, an angle adjustment hydraulic cylinder 5, a main bearing plate 6, a fastening screw 9, a longitudinal pesticide spraying rod 10, a reinforcement column 13, a telescopic frame drive block 14, a main bearing shaft 17, a telescopic frame drive hydraulic cylinder 22, a starting No. 1 connecting rod 24, a middle No. 1 connecting rod 26, a middle No. 2 connecting rod 27, an end No. 2 connecting rod 31, an end No. 1 connecting rod 34, and a starting No. 2 connecting rod 35. The main support platform 1 has a bearing shaft connecting groove 16 inside, an auxiliary support platform 2 is provided on one side of the main support platform 1, and an auxiliary rod connecting groove 3 is provided inside the auxiliary support platform 2. The bearing shaft connecting groove 16 is rotatably connected to the main bearing shaft 17, and the main bearing shaft 17 has two ends. The main bearing plate 6 has a hexagonal block mounting groove 18 on one side, and a main bearing plate 6 is provided on both sides of the main bearing shaft 17. A hexagonal positioning block 19 is provided on one side of the main bearing plate 6. The hexagonal positioning block 19 is adapted to the hexagonal block mounting groove 18. The hexagonal positioning block 19 is connected to the hexagonal block mounting groove 18. The hexagonal positioning block 19 is inserted into the hexagonal block mounting groove 18. The main bearing plate 6 is connected to the main bearing shaft 17 by a fastening screw 9. The other side of the main bearing plate 6 has a side bearing platform 20 and an angle adjustment connecting column 7. The side bearing platform 20 is located at the lower part of the angle adjustment connecting column 7. The bottom of the side bearing platform 20 has a lower positioning hole 21. The auxiliary support rod 4 is rotatably connected to the auxiliary rod connecting groove 3. The auxiliary support rod 4 is fixedly connected to the angle adjustment hydraulic cylinder 5 on both sides. One side of the angle hydraulic cylinder 5 is connected to the angle adjustment connecting column 7, so that when the angle adjustment hydraulic cylinder 5 is extended or retracted, the main bearing plate 6 will rotate counterclockwise or clockwise, thereby adjusting the inclination angle of the longitudinal pesticide spraying rod 10, thereby changing the longitudinal range of the longitudinal pesticide spraying rod 10 to spray pesticides on both sides, so as to adapt to the spraying operation of corn crops at different heights and enhance the adaptability of this device. The end of the hydraulic rod of the angle adjustment hydraulic cylinder 5 is provided with an angle adjustment connecting ring 8, and the angle adjustment connecting ring 8 is rotatably connected to the angle adjustment connecting column 7. The outer side of the side bearing platform 20 is fixedly connected to the two sets of telescopic frame driving hydraulic cylinders 22. The two telescopic frame driving hydraulic cylinders 22 connected to the same side bearing platform 20 are symmetrically arranged for corn planting. During the pesticide spraying operation, the telescopic frame driving hydraulic cylinder 22 is started to pull the telescopic frame driving blocks 14 on the same side closer to each other, so that the telescopic frame 300 is extended. After the telescopic frame 300 is extended, the carrier drives the device forward, and the pesticide spraying ports 11 on both sides of the vertical pesticide spraying rod 10 are used to spray the corn with pesticides. Through the long rod setting of the vertical pesticide spraying rod 10, the whole body of the corn is sprayed synchronously, so that the pesticide spraying is more uniform, and the middle and bottom of the corn can also be better sprayed with pesticides, and the pesticide spraying effect is better. The hydraulic rod end of the telescopic frame driving hydraulic cylinder 22 is fixedly connected to the telescopic frame driving block 14, and the telescopic frame driving block 14 has a telescopic frame driving joint 23 on the upper and lower sides.

[0021] Example 2:

[0022] The telescopic frame 300 is provided with two groups of telescopic frames 300 symmetrically arranged in an upper and lower direction on one side of the telescopic frame driving joint 23 of the present invention, and the telescopic frame 300 is provided on the side of the side bearing platform 20. The telescopic frame 300 can be extended or retracted by the telescopic frame driving hydraulic cylinder 22. When the telescopic frame 300 is extended, the corn crop can be sprayed with pesticides. When the telescopic frame 300 is retracted, the volume is small, which is convenient for transportation and storage. The telescopic frame 300 is composed of a middle transition frame 301, a starting support frame 302, and an end support frame 303. The middle transition frame 301 is in the middle position, and the starting support frame 302 and the end support frame 303 are respectively located on both sides of the middle transition frame 301. The middle transition frame 301 is composed of multiple groups of transition frame connecting units 311 connected to each other. The transition frame connecting unit 311 is composed of a middle connecting rod No. 1 26 and a middle connecting rod No. 2 27. The middle of the middle connecting rod No. 1 26 and the middle connecting rod No. 2 27 both have a middle connecting platform 30, and the middle connecting rod No. 1 26 has a middle The connecting platform 30 is rotatably connected to the middle connecting platform 30 of the middle No. 2 connecting rod 27, the middle No. 1 connecting rod 26 has a middle No. 1 joint 28 on both sides, the middle No. 2 connecting rod 27 has a middle No. 2 joint 29 on both sides, the middle No. 1 joint 28 and the middle No. 2 joint 29 between the adjacent transition frame connecting units 311 are rotatably connected, the end support frame 303 is composed of the end No. 2 connecting rod 31 and the end No. 1 connecting rod 34, and the end No. 2 connecting rod 31 has a middle connecting platform 3 on one side. 0, the other side of the end No. 2 connecting rod 31 has an end No. 2 joint 32, one side of the end No. 1 connecting rod 34 has a middle connecting platform 30, the other side of the end No. 1 connecting rod 34 has an end No. 1 joint 33, the middle connecting platform 30 of the end No. 2 connecting rod 31 is rotatably connected with the middle connecting platform 30 of the end No. 1 connecting rod 34, and the end No. 2 joint 32 of the end support frame 303 is rotatably connected with the middle No. 2 joint 29 on the side of the middle transition frame 301 away from the main support platform 1.

[0023] Example 3:

[0024] The end support frame 303 of the utility model has an end No. 1 joint 33 and a middle No. 1 joint 28 of the middle transition frame 301 away from the main support platform 1 side, and the starting support frame 302 is composed of a starting No. 1 connecting rod 24 and a starting No. 2 connecting rod 35. The middle of the starting No. 1 connecting rod 24 and the starting No. 2 connecting rod 35 are both provided with a middle connecting platform 30. The middle connecting platform 30 of the starting No. 1 connecting rod 24 is rotatably connected to the middle connecting platform 30 of the starting No. 2 connecting rod 35. One side of the starting No. 2 connecting rod 35 has a starting The No. 2 joint 37, the other side of the starting No. 2 connecting rod 35 has a starting connection point 25, the one side of the starting No. 1 connecting rod 24 has a starting connection point 25, the other side of the starting No. 1 connecting rod 24 has a starting connection point 25, the starting No. 2 joint 37 of the starting support frame 302 is rotatably connected to the middle No. 1 joint 28 of the middle transition frame 301 toward the main support platform 1 side, and the starting No. 1 joint 36 of the middle transition frame 301 is rotatably connected to the middle No. 2 joint 29 of the middle transition frame 301 toward the main support platform 1 side.

[0025] Example 4:

[0026] The starting connection point 25 of the starting support frame 302 of the utility model is rotatably connected to the telescopic frame drive joint 23 of the telescopic frame drive block 14, and the connection points of the end joint No. 1 33 and the middle joint No. 1 28, the end joint No. 2 32 and the middle joint No. 2 29, the middle joint No. 1 28 and the middle joint No. 2 29, the middle joint No. 1 28 and the starting joint No. 2 37, and the starting joint No. 1 36 and the middle joint No. 2 29 of the telescopic frames 300 located on the upper and lower sides are all rotatably connected to the reinforcement column 13. The telescopic frames 300 on the same side adopt a symmetrical design of two groups, and the corresponding telescopic frames 300 are connected by the reinforcement column 13, thereby increasing the structural strength of the telescopic frame 300, enhancing the vibration and impact resistance of the telescopic frame 300, and further enhancing the service life and safety of use of this device.

[0027] Example 5:

[0028] The telescopic frame 300 of the present invention is provided with a longitudinal pesticide spraying rod 10 at the bottom, and pesticide spraying ports 11 are provided on both sides of the longitudinal pesticide spraying rod 10. A spraying rod connecting column 15 is provided at the top of the longitudinal pesticide spraying rod 10. The spraying rod connecting column 15 is rotatably connected to the middle connecting platform 30, and the bottom of the medicine supply hose 12 is connected to the spraying rod connecting column 15.

[0029] Example 6:

[0030] The installation steps of the utility model are as follows: the main bearing shaft 17 is rotatably connected to the bearing shaft connecting groove 16 of the main supporting platform 1, the hexagonal positioning block 19 of the main bearing plate 6 is inserted into the hexagonal block mounting groove 18 of the main bearing shaft 17, the main bearing plate 6 is connected to the main bearing shaft 17 by fastening screws 9, the auxiliary support rod 4 is rotatably connected to the auxiliary rod connecting groove 3 of the main supporting platform 1, the two sides of the auxiliary support rod 4 are fixedly connected to the angle adjustment hydraulic cylinder 5, the angle adjustment connecting ring 8 of the angle adjustment hydraulic cylinder 5 is rotatably connected to the angle adjustment connecting column 7 of the main bearing plate 6, and one side of the side bearing platform 20 of the main bearing plate 6 is fixedly connected to the two telescopic frame driving hydraulic cylinders 22, so that the two telescopic frame driving hydraulic cylinders 22 connected to the same side bearing platform 20 Symmetrical arrangement, the hydraulic rod of the telescopic frame driving hydraulic cylinder 22 is fixedly connected to the telescopic frame driving block 14, the middle connecting platform 30 of the starting No. 2 connecting rod 35 is rotatably connected with the middle connecting platform 30 of the starting No. 1 connecting rod 24, the starting No. 2 connecting rod 35 and the starting No. 1 connecting rod 24 constitute a starting support frame 302, the starting connection point 25 of the starting support frame 302 is rotatably connected with the telescopic frame driving joint 23 of the telescopic frame driving block 14, the middle connecting platform 30 of the middle No. 1 connecting rod 26 is rotatably connected with the middle connecting platform 30 of the middle No. 2 connecting rod 27, the middle No. 1 connecting rod 26 and the middle No. 2 connecting rod 27 constitute a transition frame connection unit 311, the middle No. 1 joint 28 and the middle No. 2 joint 28 of the adjacent transition frame connection units 311 The head 29 is rotatably connected, and multiple groups of transition frame connection units 311 together constitute the middle transition frame 301. The middle No. 2 joint 29 of the middle transition frame 301 is rotatably connected to the starting No. 1 joint 36 of the starting support frame 302. The middle No. 1 joint 28 of the middle transition frame 301 is rotatably connected to the starting No. 2 joint 37 of the starting support frame 302. The middle connecting platform 30 of the end No. 1 connecting rod 34 is rotatably connected to the middle connecting platform 30 of the end No. 2 connecting rod 31. The end No. 2 connecting rod 31 and the end No. 1 connecting rod 34 constitute the end support frame 303. The end No. 2 joint 32 of the end support frame 303 is rotatably connected to the middle No. 2 joint 29 of the middle transition frame 301. The end No. 1 joint 33 of the end support frame 303 The middle joint No. 1 28 of the middle transition frame 301 is rotatably connected. The middle transition frame 301, the starting support frame 302, and the end support frame 303 constitute a telescopic frame 300. The end joint No. 1 33 and the middle joint No. 1 28 connection point, the end joint No. 2 32 and the middle joint No. 2 29 connection point, the middle joint No. 1 28 and the middle joint No. 2 29 connection point, the middle joint No. 1 28 and the starting joint No. 2 37 connection point, and the starting joint No. 1 36 and the middle joint No. 2 29 connection point of the telescopic frame 300 that is symmetrical above and below are all rotatably connected to the reinforcement column 13. The spraying rod connecting column 15 of the vertical pesticide spraying rod 10 is rotatably connected to the middle connecting platform 30, and the bottom of the medicine supply hose 12 is connected to the spraying rod connecting column 15. The installation of this device is completed.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A corn planting pesticide spraying device, characterized by : It includes a main support platform (1), an auxiliary support rod (4), an angle adjustment hydraulic cylinder (5), a main bearing plate (6), a fastening screw (9), a longitudinal pesticide spraying rod (10), a strengthening column (13), a telescopic frame driving block (14), a main bearing shaft (17), a telescopic frame driving hydraulic cylinder (22), a starting No. 1 connecting rod (24), a middle No. 1 connecting rod (26), a middle No. 2 connecting rod (27), a terminal No. 2 connecting rod (31), a terminal No. 1 connecting rod (34), and a starting No. 2 connecting rod (35). The main support platform (1) has A bearing shaft connecting groove (16), an auxiliary supporting platform (2) is provided on one side of the main supporting platform (1), an auxiliary rod connecting groove (3) is provided inside the auxiliary supporting platform (2), the bearing shaft connecting groove (16) is rotatably connected to the main bearing shaft (17), hexagonal block mounting grooves (18) are provided on both sides of the main bearing shaft (17), main bearing plates (6) are provided on both sides of the main bearing shaft (17), a hexagonal positioning block (19) is provided on one side of the main bearing plate (6), the hexagonal positioning block (19) is adapted to the hexagonal block mounting groove (18), and the hexagonal positioning block (19) is connected The hexagonal block mounting groove (18) is inserted into the hexagonal positioning block (19), the main bearing plate (6) is connected to the main bearing shaft (17) by fastening screws (9), the other side of the main bearing plate (6) has a side bearing platform (20) and an angle adjustment connecting column (7), the side bearing platform (20) is located at the lower part of the angle adjustment connecting column (7), and the bottom of the side bearing platform (20) has a lower positioning hole (21), the auxiliary support rod (4) is rotatably connected to the auxiliary rod connecting groove (3), and the two sides of the auxiliary support rod (4) are fixedly connected to the angle adjustment hydraulic Cylinder (5), the hydraulic rod end of the angle adjustment hydraulic cylinder (5) has an angle adjustment connecting ring (8), the angle adjustment connecting ring (8) is rotatably connected to the angle adjustment connecting column (7), the outer side of the side bearing platform (20) is fixedly connected to two groups of telescopic frame driving hydraulic cylinders (22), the two telescopic frame driving hydraulic cylinders (22) connected to the same side bearing platform (20) are symmetrically arranged, the hydraulic rod end of the telescopic frame driving hydraulic cylinder (22) is fixedly connected to the telescopic frame driving block (14), and the telescopic frame driving block (14) has telescopic frame driving joints (23) on the upper and lower sides.

2. A corn planting pesticide spraying device according to claim 1, characterized in that : One side of the telescopic frame drive joint (23) is provided with two groups of telescopic frames (300) symmetrically arranged in an upper and lower direction. The telescopic frame (300) is composed of a middle transition frame (301), a starting support frame (302), and an end support frame (303). The middle transition frame (301) is in the middle position, and the starting support frame (302) and the end support frame (303) are respectively located on both sides of the middle transition frame (301). The middle transition frame (301) is composed of multiple groups of transition frame connection units (3 11) are connected to each other, the transition frame connection unit (311) is composed of a middle No. 1 connecting rod (26) and a middle No. 2 connecting rod (27), the middle of the middle No. 1 connecting rod (26) and the middle No. 2 connecting rod (27) are provided with a middle connecting platform (30), the middle connecting platform (30) of the middle No. 1 connecting rod (26) is rotatably connected with the middle connecting platform (30) of the middle No. 2 connecting rod (27), and both sides of the middle No. 1 connecting rod (26) are provided with a middle No. 1 joint (28), The middle No. 2 connecting rod (27) has a middle No. 2 joint (29) on both sides, the middle No. 1 joint (28) and the middle No. 2 joint (29) between the adjacent transition frame connection units (311) are rotatably connected, the end support frame (303) is composed of the end No. 2 connecting rod (31) and the end No. 1 connecting rod (34), one side of the end No. 2 connecting rod (31) has a middle connecting platform (30), the other side of the end No. 2 connecting rod (31) has a end No. 2 joint (32), and the end One side of the No. 1 connecting rod (34) has a middle connecting platform (30), the other side of the end No. 1 connecting rod (34) has a terminal No. 1 joint (33), the middle connecting platform (30) of the end No. 2 connecting rod (31) is rotatably connected to the middle connecting platform (30) of the end No. 1 connecting rod (34), and the terminal No. 2 joint (32) of the end support frame (303) is rotatably connected to the middle No. 2 joint (29) on the side of the middle transition frame (301) away from the main support platform (1).

3. A corn planting pesticide spraying device according to claim 2, characterized in that The end support frame (303) has an end No. 1 joint (33) that is rotatably connected to the middle No. 1 joint (28) on the side of the middle transition frame (301) away from the main support platform (1). The starting support frame (302) is composed of a starting No. 1 connecting rod (24) and a starting No. 2 connecting rod (35). The middle parts of the starting No. 1 connecting rod (24) and the starting No. 2 connecting rod (35) are both provided with a middle connecting platform (30). The middle connecting platform (30) of the starting No. 1 connecting rod (24) is rotatably connected to the middle connecting platform (30) of the starting No. 2 connecting rod (35). One side of the starting No. 2 connecting rod (35) has a starting No. 2 connecting rod. The starting support frame (302) has a starting No. 2 joint (37), the other side of the starting No. 2 connecting rod (35) has a starting connection point (25), one side of the starting No. 1 connecting rod (24) has a starting No. 1 joint (36), the other side of the starting No. 1 connecting rod (24) has a starting connection point (25), the starting No. 2 joint (37) of the starting support frame (302) is rotatably connected to the middle No. 1 joint (28) of the middle transition frame (301) toward the main support platform (1), and the starting No. 1 joint (36) of the middle transition frame (301) is rotatably connected to the middle No. 2 joint (29) of the middle transition frame (301) toward the main support platform (1).

4. A corn planting pesticide spraying device according to claim 3, characterized in that The starting connection point (25) of the starting support frame (302) is rotatably connected to the telescopic frame drive joint (23) of the telescopic frame drive block (14), and the connection points of the end joint (33) and the middle joint (28), the end joint (32) and the middle joint (29), the middle joint (28) and the middle joint (29), the middle joint (28) and the starting joint (37), and the starting joint (36) and the middle joint (29) of the telescopic frame (300) located on the upper and lower sides are all rotatably connected to the reinforcement column (13).

5. A corn planting pesticide spraying device according to claim 2, characterized in that The bottom of the telescopic frame (300) is provided with a longitudinal pesticide spraying rod (10), and both sides of the longitudinal pesticide spraying rod (10) are provided with pesticide spraying ports (11). The top of the longitudinal pesticide spraying rod (10) is provided with a spraying rod connecting column (15), and the spraying rod connecting column (15) is connected to the middle connecting platform (30) in a rotatable manner. The bottom of the medicine supply hose (12) is connected to the spraying rod connecting column (15).

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