CN117322405A - Soybean and corn banded composite planting plant protection equipment - Google Patents

Abstract

The application discloses banded compound planting plant protection equipment of soybean maize, the soybean maize banded compound planting plant protection equipment comprises a vehicle body, and the front end of automobile body is equipped with medical kit and water pump, the front end fixed mounting of automobile body has two limiting plates that are located medical kit front end, and fixed cover has two locating shafts between two limiting plates, every it is connected with the spray boom arm to rotate respectively on the locating shaft, and the bottom of spray boom arm is equipped with a plurality of equidistance and arranges the shower nozzle, and the spout of shower nozzle bottom is oriented ground all the time. Through the locating shaft rotation of spray boom wall one end and fixed mounting on the automobile body cup joint, have the aqueduct switch-on between cooperation vertical pipe and the main spray tube to the spacing wire drawing of upper and lower both ends fixed connection at vertical pipe, when the swing, utilize the pulling force and the pressure of two sets of springs to cushion, effectively protect the connection structure of spray boom arm, can ensure simultaneously that the spout of vertical pipe bottom shower nozzle is oriented under all the time, and then ensure the spraying effect to the plant.

Description

Plant protection equipment for soybean and corn strip compound planting

Technical field

This application relates to the technical field of plant protection spraying equipment, especially to plant protection equipment for soybean and corn strip compound planting.

Background technique

Corn-soybean strip compound planting refers to a planting technology with two rows of corn to four rows of soybeans that can meet the needs of two crops without blocking the light. It can solve the problem of land competition between soybeans and corn, and achieve basically no reduction in corn yields and stable yields. Another season of soybeans has been harvested. Corn-soybean strip compound planting has been piloted for many years, and this planting model and planting technology have been basically mature. When spraying corn-soybean strip compound planting plants for plant protection, boom sprayers are usually used. For spraying operations, boom sprayers have the characteristics of high spraying efficiency due to the long extension area on both sides of the spray boom and the large volume of the spray tank.

However, due to the uneven ground in the corn-soybean strip compound planting area, when the boom sprayer is traveling, the boom arm has a long arm span and poor stability, which is easily affected by body swings and terrain changes, resulting in spraying problems. When each nozzle on the boom wall swings with the spray boom wall, the direction of the nozzle is not always towards the plants directly below, resulting in uneven spraying. Moreover, the spray boom wall is fixedly connected to the car body and the spray boom wall is fixedly connected to the car body during frequent swings. , the fixed part of the spray boom wall is easy to fall off.

Contents of the invention

This application proposes a plant protection equipment for soybean and corn strip-shaped compound planting. It has the advantage that the spray boom wall can be swung and buffered, and each nozzle on the spray boom wall can always face the plants directly below, so as to solve the problems in existing plant protection equipment. The spray boom wall is easy to fall off and the spray is uneven.

In order to achieve the above purpose, this application adopts the following technical solution: soybean and corn strip-shaped compound planting plant protection equipment, including a vehicle body, the front end of the vehicle body is equipped with a medicine box, and the front end of the vehicle body is equipped with a water pump located below the medicine box. The water pump and medicine There are water supply pipes connected between the boxes, and two limiting plates at the front end of the medicine box are fixedly installed on the front end of the car body, and two positioning shafts are fixedly installed between the two limiting plates, and the two positioning shafts are respectively located at At both ends of the limiting plate, each positioning shaft is rotatably connected to a spray boom arm. The bottom of the spray boom arm is provided with a number of equidistantly arranged spray rod mechanisms. Each spray rod mechanism is provided with a number of equidistantly arranged spray rod mechanisms. nozzle, and the nozzle at the bottom of the nozzle is always facing the ground.

Further, a carrier plate is fixedly installed on the front end of the vehicle body, and the medicine box is fixedly installed on the top of the carrier plate.

Further, the spray boom arm includes an upper arm and a lower arm, one end of the upper arm and the lower arm is fixedly connected, and the other end of the upper arm and the lower arm is fixedly connected with a rotating column, and the upper and lower ends of the rotating column are connected with a limited rotation. Frame, the top of the limiting frame is equipped with a driving motor, and the driving motor drives the rotating column to rotate horizontally relative to the limiting frame. The side of the limiting frame away from the rotating column is fixedly connected with a pendulum block, and the middle part of the pendulum block is connected to the positioning shaft. Central activity socket.

Further, the top and bottom ends of the swing block are respectively rotatably connected to a set of connecting rods. The number of each set of connecting rods is two, and the two connecting rods are arranged on both sides of the swing block. Each set of connecting rods One end away from the pendulum block is rotatably connected to a linkage block, one end of the linkage block is fixedly connected to a sliding shaft, the end of the sliding shaft away from the linkage block is movable with a baffle, and one end of the sliding shaft is threaded with bolts. A positioning plate is movably mounted on each sliding shaft, and both sides of the positioning plate are fixedly connected to the inner side walls of the two limiting plates. There is a spring movably sleeved on the sliding shaft between the baffle and the positioning plate.

Furthermore, the spring is in a relaxed state under normal conditions.

Further, the spray rod mechanism includes a positioning connecting shaft fixedly connected to the lower arm, the bottom end of the positioning connecting shaft is fixedly connected to a main nozzle, and the side of the main nozzle is fixedly connected to a number of rotating joints, and A number of rotary joints are arranged equidistantly on the water conduit. The rotary pipe end of the rotary joint is fixedly connected to a longitudinal conduit. The nozzle is fixedly connected to the longitudinal conduit. There are two limiters fixedly connected between each longitudinal conduit. wire drawing, and two limiting wire drawings are arranged at the top and bottom of the longitudinal conduit. One end of the two limiting wire drawings is fixedly connected to a limiting plate on the side away from the medicine box, and each two main nozzles are fixedly connected. There is a water pipe, and the innermost main nozzle is connected to the output pipe of the water pump.

Further, the nozzle of the water pump is fixedly connected to a main nozzle near the inside of the vehicle body, and a water conduit is fixedly connected between each two main nozzles.

Further, the top end of the positioning connecting shaft penetrates the lower arm and is fixedly connected to the bottom of the upper arm.

Further, the medicine box includes a soybean medicine box and a corn medicine box, and the soybean medicine box and the corn medicine box are independent of each other. The water pump includes a first water pump and a second water pump, and the water inlet of the first water pump is connected with the soybean medicine box. The inner cavity is connected, and the water outlet of the second water pump is connected with the inner cavity of the corn medicine box. The water outlet of the first water pump is connected with two first conduits, and the two first conduits extend to both sides of the medicine box respectively. At the two spray boom walls, the water outlet of the second water pump is connected to two second conduits. The main spray pipe includes a soybean spraying main pipe and a corn spraying main pipe, and the soybean spraying main pipe and the corn spraying pipe are The main pipes are staggered from the inside to the outside at the bottom of the spray boom wall. There is a glass partition between the soybean spraying main pipe and the corn spraying main pipe, and the top of the glass partition is fixedly connected to the spray boom wall. The soybean spraying main pipe is A first positioning conduit is connected to the first conduit, and the first positioning conduit is fixedly connected to the lower arm. A second positioning conduit is connected to the corn spray main pipe and the second conduit, and the second positioning conduit is connected to the lower arm. The lower arm is fixedly sleeved, and the first conduit and the second conduit are respectively connected to the spray boom wall.

The soybean and corn belt-shaped compound planting plant protection equipment provided by this application is rotatably connected to the positioning shaft fixedly installed on the vehicle body through one end of the spray boom wall, and is connected with a water conduit between the longitudinal conduit and the main nozzle, and in the longitudinal direction The upper and lower ends of the duct are fixedly connected with limit wires, so that the limit wires are used to limit the position of each longitudinal duct, so that when the spray boom arm swings due to the bumps of the vehicle body, the pulling force and pressure of the two sets of springs are used Buffering is carried out to effectively protect the connection structure of the spray boom arm. At the same time, it can ensure that the nozzle of the nozzle at the bottom of the longitudinal duct is always directed downwards, thereby ensuring the spraying effect on the plants and avoiding the need for existing spray boom sprayers to be used. The spray boom arm is prone to vibrations caused by the bumps of the vehicle body when walking, causing the sprinkler head fixed on the bracket to swing, thus affecting the spraying effect on the plants.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

Figure 1 is a schematic three-dimensional structural diagram of the plant protection equipment for soybean and corn strip-shaped composite planting in Embodiment 1 of the present invention;

Figure 2 is a schematic diagram of the relevant connection structure of the medicine box and spray boom wall at the front end of the car body in Figure 1;

Figure 3 is a schematic diagram of the spray boom wall and its related connection structure on one side in Figure 2;

Figure 4 is a front view of Figure 3;

Figure 5 is a schematic diagram of the spray boom mechanism of Figure 3;

Figure 6 is a partial enlarged structural diagram of Figure 2;

Figure 7 is a schematic diagram of the relevant connection structure of the medicine box and spray boom wall at the front end of the vehicle body in Embodiment 2.

In the picture: 1. Car body; 2. Carrier plate; 3. Medicine box; 301. Soybean medicine box; 302. Corn medicine box; 4. Limiting plate; 5. Positioning shaft; 6. Pendulum block; 7. Limiting frame; 8. Rotating column; 9. Upper arm; 10. Lower arm; 11. Positioning coupling; 12. Main nozzle; 121. Soybean spraying main pipe; 122. Corn spraying main pipe; 13. Water pipe; 14. Rotary joint; 15. Longitudinal duct; 16. Nozzle; 17. Limit wire drawing; 18. Connecting rod; 19. Linkage block; 20. Sliding shaft; 21. Spring; 22. Baffle; 23. Positioning plate; 24. Water inlet pipe; 25 , support plate; 26. water pump; 261. first pump body; 2611. first conduit; 2612. first positioning conduit; 262. second pump body; 2621. second conduit; 2622. second positioning conduit; 27. Glass partition; 28. Fixed block.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

Please refer to Figure 1. The plant protection equipment for soybean and corn belt-shaped compound planting includes a vehicle body 1. A carrier plate 2 is fixedly installed on the front end of the vehicle body 1. A medicine box 3 is fixedly installed on the top of the carrier plate 2. The bottom of the carrier plate 2 is fixedly connected. There is a support plate 25, and a water pump 26 is fixedly installed on the top of the support plate 25. The input end of the water pump 26 is connected with the inner cavity of the medicine box 3 with a water supply pipe. The top of the carrier plate 2 is fixedly connected with two limiting plates 4, two The limiting plates 4 are located on one side of the front end of the medicine box 3. Please refer to Figures 2 to 4. There are two positioning shafts 5 fixed between the two limiting plates 4, and the two positioning shafts 5 are located on both sides of the limiting plate 4. At the end, each positioning shaft 5 is movable with a pendulum block 6, and a limiting frame 7 is fixedly connected to the outside of the pendulum block 6. A notch is provided on the side of the limiting frame 7 away from the pendulum block 6, and the limiting frame 7 is far away from the pendulum block 6. There is a rotating column 8 located in the notch that is rotated and connected. The outside of the rotating column 8 is fixedly connected with a spray arm. The spray arm includes an upper arm 9 and a lower arm 10. The upper arm 9 and the lower arm 10 are respectively located on the upper and lower sides of the outer side of the rotating column 8. end, and the upper arm 9 is located above the lower arm 10. The end of the upper arm 9 away from the rotating column 8 is fixedly connected to the top of the lower arm 10. The bottom of the lower arm 10 is fixedly connected to a number of equidistantly arranged spray rod mechanisms. The number is not less than two. The top of the limiting frame 7 is provided with a driving motor. The driving motor drives the rotating column 8 to rotate, thereby controlling the spray arm to rotate ninety degrees when the plant protection equipment is not in use to prevent the spray arm from affecting plant protection. The device runs normally on the road.

Please refer to Figures 3 to 5. The spray boom mechanism includes a positioning connecting shaft 11 fixedly connected to the lower arm 10. The bottom end of the positioning connecting shaft 11 is fixedly connected to a main nozzle 12, and the side of the main nozzle 12 is fixedly connected to a A plurality of rotary joints 14 are arranged equidistantly on the water conduit 13. The number of the rotary joints 14 is not less than two. The rotary pipe end of the rotary joint 14 is fixedly sleeved with a longitudinal conduit 15. The bottom of the longitudinal conduit 15 There is a nozzle 16 connected to the end fixed sleeve. Please refer to Figure 1 to Figure 3. There are two limiting wires 17 fixedly connected between each longitudinal duct 15, and the two limiting wires 17 are respectively located at the top and bottom of the longitudinal duct 15. One end of the two limiting wires 17 is fixedly connected to a limiting plate 4 on the side away from the medicine box 3, please refer to Figure 2 and Figure 6, and a water conduit 13 is fixedly connected between each two main nozzles 12, please refer to In Figures 2 and 4, the innermost main nozzle 12 is connected to the output pipe of the water pump 26.

The water conduit 13 is connected between the longitudinal conduit 15 and the main nozzle 12, and the limiting wires 17 are fixedly connected to the upper and lower ends of the longitudinal conduit 15, so that the limiting wires 17 are used to limit the position of each longitudinal conduit 15. Therefore, when the boom arm swings due to the bumps of the vehicle body 1, it can be ensured that the nozzle of the nozzle 16 at the bottom of the longitudinal duct 15 is always facing directly downward, thereby ensuring the spraying effect on the plants and avoiding the existing boom sprayer. During use, the spray arm arm is prone to the problem that the spray head 16 fixed on the bracket swings due to the bumps of the vehicle body 1 when walking, thereby affecting the spraying effect on the plants.

Please refer to Figures 2 to 4. The top of the positioning coupling 11 passes through the lower arm 10 and is fixedly connected to the bottom of the upper arm 9. While the positioning coupling 11 is used to connect the main nozzle 12, the positioning coupling 11 is also used to connect the upper arm 9 and the upper arm 9. Lower arm 10, thereby improving the overall strength of the spray boom arm.

Please continue to refer to Figure 2-4. The top and bottom ends of the pendulum block 6 are respectively rotatably connected to a set of connecting rods 18. The number of each set of connecting rods 18 is two, and the two connecting rods 18 are located on both sides of the pendulum block 6. , the end of each group of connecting rods 18 away from the pendulum block 6 is rotatably connected to a linkage block 19, one end of the linkage block 19 is fixedly connected to a sliding shaft 20, and the end of the sliding shaft 20 away from the linkage block 19 is movable with a baffle 22, and the sliding shaft One end of 20 is threaded with a bolt, and the bolt limits the baffle 22 to prevent the baffle 22 from falling off. The two sliding shafts 20 are movable with positioning plates 23, and both sides of the positioning plate 23 are respectively connected with the two limiting plates. The inner side wall of 4 is fixedly connected. There is a spring 21 movable on the sliding shaft 20 between the baffle 22 and the positioning plate 23, and the spring 21 is in a relaxed state under normal conditions. The bottom of the pendulum block 6 and the top of the carrier plate 2 There is a gap reserved between them. Under normal conditions, the support of the positioning shaft 5 and the elastic pulling effect of the two sets of springs 21 keep the spray boom arm in a horizontal state. During the spraying period, when the vehicle body 1 travels and bumps, the spray arm When the rod arm, rotating column 8, limiting frame 7, and swing block 6 rotate as a whole around the positioning axis 5, please refer to Figure 4 for details. That is, when the end of the spray boom arm away from the positioning axis 5 moves downward, the connection at the upper end of the swing block 6 The rod 18 will pull the sliding shaft 20 to move to the left, thereby compressing the spring 21, and use the restoring force of the spring 21 to buffer and reset, while the connecting rod 18 at the lower end of the pendulum block 6 pushes the other set of sliding shafts 20 to move to the right. Therefore, another tension spring 21 uses the restoring force of the spring 21 to buffer and reset, thereby further improving the anti-bounce ability of the spray boom arm and improving the stability of the spray boom arm. The structural design of the rotational connection relative to the positioning shaft 5 ensures that the spray boom arm can always remain in a horizontal state, and also avoids the fixed connection method of the spray boom arm of the existing boom sprayer, which is easily caused by the vehicle body 1 When driving, the spray boom arm swings frequently, causing the fixed part to fall off.

When the soybean and corn strip-shaped compound planting plant protection equipment is used, the driving motor first drives the rotating column 8 to rotate, so that the rotating column 8 drives the spray boom arms on both sides of the vehicle body 1 to rotate out, and then the pneumatic vehicle body 1 is waiting for spraying. The plants are walking through the gaps in the ground. At the same time, the water pump 26 pumps the medicine in the medicine box 3 into the main nozzle pipes 12 on both sides, so that the medicine is sprayed from each nozzle 16 to spray the plants, while on the vehicle body 1 During travel, when the spray boom arm swings, the pulling force and pressure of the two sets of springs 21 are used for buffering to effectively protect the connection structure of the spray boom arm, and the upper and lower sides of each longitudinal conduit 15 are pulled by two limiting wires 17 At both ends, a rotary joint 14 is provided between the longitudinal conduit 15 and the main nozzle 12 so that the nozzle of the nozzle 16 at the bottom end of the longitudinal conduit 15 always sprays towards the plants below.

Detailed ways

Please refer to Figure 7. Different from the first embodiment, the medicine box 3 includes a soybean medicine box 301 and a corn medicine box 302, and the soybean medicine box 301 and the corn medicine box 302 are independent of each other. The water pump 26 includes a first water pump 261 and a second water pump 261. Water pump 262, and the water pumping port of the first water pump 261 is connected with the inner cavity of the soybean medicine box 301, the water pumping port of the second water pump 262 is connected with the inner cavity of the corn medicine box 302, and the water outlet of the first water pump 261 is connected with Two first conduits 2611 extend to the two spray rod walls on both sides of the medicine box respectively. The water outlet of the second water pump 262 is connected to two second conduits 2621. The main nozzle 12 includes The soybean spraying supervisor 121 and the corn spraying supervisor 122 are arranged staggeredly from the inside to the outside at the bottom of the spray boom wall. The soybean spraying supervisor 121 and the corn spraying supervisor 122 There is a glass partition 27 between them, and the top of the glass partition 27 is fixedly connected to the spray boom wall. A first positioning conduit 2612 is connected between the soybean spraying main pipe 121 and the first conduit 2611, and the first positioning conduit 2612 and The lower arm 10 is fixedly socketed. A second positioning conduit 2622 is connected between the corn spraying main pipe 122 and the second conduit 2621, and the second positioning conduit 2622 is fixedly socketed with the lower arm 10. The first conduit 2611 and the second conduit 2621 There are 28 connected to the spray boom wall respectively. Through 28, the two conduits can be stably fixed on the spray boom wall, and the two conduits are hoses, so as not to affect the rotation recovery of the spray boom wall.

By separately setting up the soybean medicine box 301 and the corn medicine box 302, and pumping the medicine liquid in the two medicine boxes through the first pump body 261 and the second pump body 262 respectively, independent control of the soybean and corn belt pesticide application can be achieved. And a glass partition 27 is provided between the soybean spraying main pipe 121 and the corn spraying main pipe 122, so that when soybeans and corn belts are sprayed at the same time, different drugs applied by the two will not affect each other.

Claims (9)

1. Plant protection equipment for soybean and corn belt-shaped compound planting, including a vehicle body (1). The front end of the vehicle body (1) is provided with a medicine box (3), and the front end of the vehicle body (1) is provided with a medicine box (3) located below the medicine box (3). There is a water supply pipe connected to the water pump (26) and the medicine box (3). The front end of the vehicle body (1) is fixedly installed with two limiting plates (4) located at the front end of the medicine box (3). ), and two positioning shafts (5) are fixedly installed between the two limiting plates (4). The two positioning shafts (5) are respectively located at both ends of the limiting plate (4). Each of the positioning shafts (5) 5) are respectively rotatably connected with spray boom arms. The bottom of the spray boom arm is provided with a number of equidistantly arranged spray rod mechanisms. Each spray rod mechanism is provided with a number of equidistantly arranged nozzles (16), and the bottom of the nozzle (16) The nozzle at the end is always facing the ground. 2. The plant protection equipment for soybean and corn belt-shaped compound planting according to claim 1, characterized in that a carrier plate (2) is fixedly installed on the front end of the vehicle body (1), and the medicine box (3) is fixedly installed on the front end of the vehicle body (1). top of the carrier plate (2). 3. The soybean and corn belt-shaped compound planting plant protection equipment according to claim 1, characterized in that the spray arm arm includes an upper arm (9) and a lower arm (10), and the upper arm (9) and the lower arm (10) ) is fixedly connected to one end, and the other ends of the upper arm (9) and lower arm (10) are fixedly connected to a rotating column (8). The upper and lower ends of the rotating column (8) are rotationally connected to a limiting frame (7), so A driving motor is provided on the top of the limiting frame (7), and the driving motor drives the rotating column (8) to rotate horizontally relative to the limiting frame (7). A pendulum is fixedly connected to the side of the limiting frame (7) away from the rotating column (8). block (6), the middle part of the pendulum block (6) is movably connected with the middle part of the positioning shaft (5). 4. The soybean and corn belt-shaped compound planting plant protection equipment according to claim 3, characterized in that the top and bottom ends of the swing block (6) are respectively connected with a set of connecting rods (18) in a rotational manner, and each set of connecting rods ( The number of the connecting rods (18) is two, and the two connecting rods (18) are arranged on both sides of the swing block (6). The end of each group of the connecting rods (18) away from the swing block (6) is rotationally connected with a linkage. block (19), one end of the linkage block (19) is fixedly connected with a sliding shaft (20), and the end of the sliding shaft (20) away from the linkage block (19) is movable with a baffle (22), and the sliding shaft (20) One end of (20) is threaded with bolts, and the two sliding shafts (20) are movable with positioning plates (23), and both sides of the positioning plates (23) are respectively fixed to the inner walls of the two limiting plates (4). Connection, a spring (21) movably sleeved on the sliding shaft (20) is provided between the baffle (22) and the positioning plate (23). 5. The plant protection equipment for soybean and corn strip-shaped composite planting according to claim 4, characterized in that the spring (21) is in a relaxed state under normal circumstances. 6. The plant protection equipment for soybean and corn belt-shaped composite planting according to claim 3, characterized in that the spray rod mechanism includes a positioning coupling (11) fixedly connected to the lower arm (10), and the positioning coupling A main nozzle (12) is fixedly connected to the bottom end of (11), and a number of rotating joints (14) are fixedly connected to the side of the main nozzle (12), and several rotating joints (14) are arranged equidistantly in the water conduit pipe. (13), the rotating pipe end of the rotary joint (14) is fixedly connected to a longitudinal conduit (15), the nozzle (16) is fixedly connected to the longitudinal conduit (15), and each longitudinal conduit (15) There are two limiting drawing wires (17) fixedly connected between them, and the two limiting drawing wires (17) are respectively located at the top and bottom of the longitudinal conduit (15). One end of the two limiting drawing wires (17) is connected to the distance away from the A limiting plate (4) on one side of the box (3) is fixedly connected, and a water conduit (13) is fixedly connected between every two main nozzles (12). The innermost main nozzle (12) is connected to the water pump ( The output port of 26) is connected. 7. The soybean and corn belt-shaped compound planting plant protection equipment according to claim 1, characterized in that the nozzle of the water pump (26) is fixedly connected to a main nozzle (12) close to the inside of the vehicle body (1) , and a water conduit pipe (13) is fixedly connected between every two main nozzles (12). 8. The plant protection equipment for soybean and corn belt-shaped composite planting according to claim 3, characterized in that the top end of the positioning connecting shaft (11) penetrates the lower arm (10) and is fixedly connected to the bottom of the upper arm (9). 9. The plant protection equipment for soybean and corn strip compound planting according to claim 6, characterized in that the medicine box (3) includes a soybean medicine box (301) and a corn medicine box (302), and the soybean medicine box (301) ) and the corn medicine box (302) are independent of each other. The water pump (26) includes a first water pump (261) and a second water pump (262), and the water inlet of the first water pump (261) is connected with the soybean medicine box (301). The inner cavity is connected, the water inlet of the second water pump (262) is connected with the inner cavity of the corn medicine box (302), and the water outlet of the first water pump (261) is connected with two first conduits (2611). Two first conduits (2611) extend to the two spray boom walls on both sides of the medicine box respectively. The water outlet of the second water pump (262) is connected to two second conduits (2621). The main spray The tube (12) includes a soybean spraying main pipe (121) and a corn spraying main pipe (122), and the soybean spraying main pipe (121) and the corn spraying main pipe (122) are staggered from the inside to the outside at the bottom of the boom wall. Set up, a glass partition (27) is provided between the soybean spraying main pipe (121) and the corn spraying main pipe (122), and the top of the glass partition (27) is fixedly connected to the spray boom wall, and the soybean spraying main pipe (121) ) and the first conduit (2611) are connected with a first positioning conduit (2612), and the first positioning conduit (2612) is fixedly connected to the lower arm (10), and the corn spraying main pipe (122) is connected with the second A second positioning conduit (2622) is connected between the conduits (2621), and the second positioning conduit (2622) is fixedly connected to the lower arm (10). The first conduit (2611) and the second conduit (2621) are respectively There is (28) connected to the spray boom wall.