Special-purpose weeder for beet ridge closing period

Abstract

The utility model relates to a kind of weeding technology field, especially disclose a special cultivator weeder in beet ridge closing period, including square steel frame, cultivator hook is realized into soil depth adjustment by connecting end adjusting hole, and seedling guard plate is realized height adjustment with the up-down movement of cultivator hook, spray head supports up-down bidirectional angle adjustment, rear end depth limiting wheel is realized height adjustment by support buckle slot, and is fixed by top screw, different beet growth height, different ridge height planting scene can be quickly adapted, reduce the adjustment difficulty of operator, seedling guard plate can effectively open beet leaf, form independent spraying space, cooperate with the spray head of bidirectional angle adjustment, ensure that liquid medicine is accurately sprayed to the weed area of plant bottom, reduce the liquid waste caused by leaf shielding, improve weed control effect, protect beet from competing nutrients, moisture and illumination in growth critical period, create good conditions for beet tuber enlargement, help beet yield improvement.

Description

Technical Field

[0001] This utility model relates to the field of weed control technology, and in particular to a special weed control machine for inter-row cultivation during the canopy closure period of sugar beets. Background Technology

[0002] In the entire growth cycle of sugar beets, the canopy closure stage is the golden period that determines the yield and quality of the tubers. During this period, the sugar beet plants exhibit vigorous growth, with leaves entering a rapid and abundant growth phase. The petioles elongate significantly at a rate of 1.5-2 cm per day, and each plant can have 15-20 leaves, which overlap to form a dense covering layer about 30-50 cm thick. This dense leaf layer acts like a natural protective umbrella, effectively reducing soil moisture evaporation and creating an ideal growing environment for the roots that provides shade and moisture, playing a crucial role in the robust development of the sugar beet root system.

[0003] While the lush foliage brings positive benefits, it also creates thorny problems. The intertwined leaves form a tight physical barrier, becoming a major obstacle to weed control. Weeds in the field tend to grow at the base of the plant, under the dense cover of the leaves. Under this complex leaf cover, the pesticide solution from traditional herbicides can only adhere to the surface of the leaves and cannot penetrate the leaf layer to reach the weed growth area. This causes weeds to continuously compete with sugar beets for nutrients, water, and sunlight in the soil, severely hindering tuber enlargement and ultimately resulting in a significant reduction in sugar beet yield. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a special weed control machine for sugar beet canopy closure. It solves the problem that during the canopy closure stage, the intertwined leaves form a dense physical barrier, becoming a major obstacle to weed control. Weeds in the field concentrate at the base of the plant, under the dense cover of leaves. Under this complex leaf cover, the pesticide solution from traditional weed control equipment can only adhere to the surface of the leaves and cannot penetrate to reach the weed growth area. This leads to continuous competition between weeds and sugar beets for soil nutrients, water, and sunlight, severely hindering tuber enlargement and ultimately causing a significant reduction in sugar beet yield.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A special weed control and cultivation machine for sugar beet canopy closure includes: a square steel frame, approximately 6.5m in length, made of Q235 carbon steel; multiple four-bar linkages are rotatably mounted on one side of the square steel frame, each linkage is equipped with two springs for adjusting the mechanism pressure, enabling single-unit contouring to adapt to uneven terrain; multiple fixing rods are fixedly mounted on the top of the square steel frame, each fixing rod being a 4×6 square steel bar.

[0007] The other end of each of the multiple four-bar linkages is fixedly equipped with a tillage hook for loosening the soil. The tillage hook is made of a thick iron plate with a thickness similar to its own.

[0008] Multiple cultivation hooks are fixedly installed with seedling protection plates on the outer wall of the middle section. These plates are used to separate the beet leaves, protect the leaves, and form an independent spraying space. The seedling protection plates are made of iron plate.

[0009] It also includes multiple nozzles;

[0010] The fixed frame is fixedly installed at the middle of the top of the square steel frame. The original Brazilian weed killer's special liquid storage tank is fixedly installed inside the fixed frame. Next to the liquid storage tank is an adjustment valve for adjusting the spraying pressure and controlling the independent spraying of the left and right nozzles.

[0011] The liquid medicine filter is fixedly installed on the outer wall of the fixed frame to filter the liquid medicine and prevent impurities from clogging the nozzle;

[0012] The depth limiting component includes two large depth limiting wheels installed at the front end of the square steel frame to control the overall working depth, and multiple rear depth limiting wheels installed on the four-bar linkage. The depth limiting component as a whole is used to limit the distance between the nozzle and the ground and the overall working depth of the machine body.

[0013] The spray assembly is mounted on the fixing pole and the seedling protection plate and is used to spray the pesticide solution;

[0014] The spray pump is not integrated into the weed killer body, but is installed on the rear drive shaft of the tractor. It is powered by the rear power take-off shaft of the tractor and is used to deliver pesticide solution to the spraying components.

[0015] Preferably, the two ends of the spring of the four-bar linkage are connected to the connecting rod of the four-bar linkage and the side wall of the square steel frame, respectively. The conformal pressure of the four-bar linkage can be adjusted by adjusting the spring compression to ensure that the relative position of the cultivation hook, the seedling protection board and the ground is stable during operation.

[0016] Preferred configuration: The rear depth limiting wheel of the depth limiting component is installed by a bracket. The front end of the four-bar linkage has a locking groove. The bracket is embedded in the locking groove at the front end of the four-bar linkage. The bracket can slide up and down along the locking groove to adjust the height of the rear depth limiting wheel. After adjustment, it is locked and fixed by a set screw. The rear depth limiting wheel bracket is made of thick iron plate, which is similar in thickness to the tillage hook.

[0017] Preferably, the connection end between the tillage hook and the four-bar linkage is provided with an adjustment hole, and the tillage hook can slide up and down along the adjustment hole to adjust the soil penetration depth. After adjustment, the position is fixed by the top screw.

[0018] Preferably, the sprinkler assembly includes branch pipes, mounting rods, and connecting pipes. The branch pipes are fixedly installed between the same ends of multiple mounting rods. Multiple mounting rods are fixedly installed between the inner walls of both sides of the seedling protection board. Multiple nozzles are fixedly installed in the middle of multiple mounting rods. The nozzles support bidirectional angle adjustment in both up and down and left and right. After adjustment, they are fixed by set screws. Multiple branch pipe interfaces of the branch pipes are fixedly installed with connecting pipes. The other ends of the multiple connecting pipes are respectively connected to the multiple nozzles.

[0019] Preferably, a drain port is fixedly installed at the bottom of the storage tank, the input end of the liquid filter is connected to the drain port through a pipe, the output end of the liquid filter is connected to the main pipe interface of the branch pipe through a pipe, the input end of the spraying pump is connected to the output end of the liquid filter through a pipe, and the output end of the spraying pump is connected to the main pipe interface of the branch pipe through a pipe.

[0020] Preferably, the multiple fixing rods and the four-bar linkage are located on the same side of the square steel frame, the openings of the multiple seedling protection plates face away from the four-bar linkage, and the orientation of the nozzles is the same as the opening orientation of the multiple seedling protection plates.

[0021] Preferably, the control switch for the spraying pump is integrated into the locomotive cab, which can control the start and stop of spraying and the independent switching of spraying between the left and right nozzles in real time.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] By setting a four-bar linkage mechanism with an adjustable spring on one side of the square steel frame, and cooperating with the overall depth control wheel at the front end of the square steel frame and the depth limiting wheel at the rear end of the four-bar linkage mechanism, the single-unit contour-following function can be realized. When facing uneven terrain, the spring of the four-bar linkage mechanism can adaptively adjust the pressure to ensure the relative position stability of the cultivation hook, seedling protection plate and nozzle with the ground, avoid uneven soil loosening depth and pesticide spraying deviation caused by terrain undulations, and significantly improve the operational stability under complex terrain.

[0024] The cultivation hook adjusts the soil depth through the adjustment hole at the connecting end. The seedling protection plate adjusts the height as the cultivation hook moves up and down. The nozzle supports bidirectional angle adjustment in both directions (up, down, left, and right). The rear depth limiting wheel adjusts the height through the bracket groove and is fixed by the top screw. It can quickly adapt to different beet growth heights and different ridge heights in planting scenarios, reducing the adjustment difficulty for operators.

[0025] Therefore, the iron plate seedling protection board can effectively separate the beet leaves and create an independent spraying space. With the two-way angle adjustable nozzle, it ensures that the liquid is accurately sprayed to the weed area at the bottom of the plant, reducing the waste of liquid caused by the leaves blocking the flow of the liquid, improving the weed control effect, and ensuring that the beet is not subject to competition for nutrients, water and light by weeds during the critical growth period. This creates good conditions for the expansion of beet tubers and helps to increase the yield of beet. Attached Figure Description

[0026] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This utility model Figure 1 Structural diagram of a four-bar linkage;

[0029] Figure 3 This utility model Figure 2 Structural diagram of the mid-to-rear depth-limiting wheel;

[0030] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0031] Legend: 1. Square steel frame; 2. Fixed frame; 3. Storage tank; 4. Liquid filter; 5. Drain outlet; 6. Fixed rod; 7. Branch pipe; 8. Four-bar linkage; 9. Connecting pipe; 10. Seedling protection plate; 11. Mounting rod; 12. Sprinkler head; 13. Cultivation hook; 14. Adjustment hole; 15. Rear depth limiting wheel; 16. Top screw; 17. Bracket; 18. Spring; 19. Clip; 20. Large depth limiting wheel. Detailed Implementation

[0032] This application provides a special weed control machine for sugar beet canopy closure, which effectively solves the problem that during the canopy closure period, the intertwined leaves form a tight physical barrier, becoming the core obstacle to weed control. Weeds in the field grow concentrated at the base of the plant, under the tight cover of the leaf layer. Under the complex leaf cover, the liquid of traditional weed control equipment can only adhere to the surface of the leaves and cannot penetrate the leaf layer to reach the weed growth area. As a result, weeds and sugar beets continuously compete for nutrients, water and sunlight in the soil, which seriously hinders tuber enlargement and ultimately causes a significant reduction in sugar beet yield.

[0033] Example

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the technical solution in this application effectively solves the problem that during the canopy-closing stage of sugar beets, the intertwined leaves form a tight physical barrier, becoming a core obstacle to weed control. Weeds in the field concentrate at the base of the plant, under the dense cover of leaves. Under this complex leaf cover, the pesticide solution from traditional herbicides can only adhere to the surface of the leaves and cannot penetrate to reach the weed growth area. This leads to continuous competition between weeds and sugar beets for soil nutrients, water, and sunlight, severely hindering tuber enlargement and ultimately causing a significant reduction in sugar beet yield. The overall approach is as follows:

[0035] To address the problems existing in the prior art, this utility model provides a special inter-row weeding and hoeing machine for sugar beet canopy closure. The following is a detailed description of the specific structure, assembly, and working process of this special inter-row weeding and hoeing machine for sugar beet canopy closure:

[0036] Overall structural layout

[0037] The core load-bearing structure of the weed killer in this embodiment is a square steel frame 1. The square steel frame 1 is made of Q235 carbon steel, with an overall length of approximately 6.5m. It is welded from square steel pipes and reinforcing ribs to ensure structural strength and stability when towed by a 100-horsepower tractor. Four to six fixing rods 6 are fixedly installed along the length of the top of the square steel frame 1. The fixing rods 6 are made of 4×6 square steel, replacing traditional round steel, to improve load-bearing and connection strength, and are used to support the branch pipes 7 of the spraying assembly. A fixing frame 2 is welded to the middle of the top of the square steel frame 1. The fixing frame 2 is a rectangular carbon steel frame, and the original Brazilian weed killer-specific liquid storage tank 3 is fixed inside by stainless steel clamps. A liquid filter 4 is bolted to the outer wall of the fixing frame 2 to prevent impurities in the liquid from clogging the nozzles 12.

[0038] Four-bar linkage and soil loosening components

[0039] On the side of the square steel frame 1 facing the working direction, multiple sets of four-bar linkage mechanisms 8 are rotatably installed through bearing seats to replace the traditional mounting frame and achieve single-unit contouring. The multiple sets of four-bar linkage mechanisms 8 are evenly distributed along the length of the square steel frame 1 with an adjacent spacing of 80cm to ensure uniform coverage of the 6m working width in a single trip. Two large depth limiting wheels 20 are symmetrically installed at the bottom front end of the square steel frame 1, which cooperate with the rear depth limiting wheels 15 on the four-bar linkage mechanism 8 to form a depth limiting system with overall depth control and local fine adjustment.

[0040] The four-bar linkage 8 is welded from Q235 angle steel. Each four-bar linkage 8 is equipped with two adjusting springs 18. One end of the spring 18 is connected to the movable link of the four-bar linkage 8 through a hook, and the other end is fixed to the lug on the side wall of the square steel frame 1. The contouring pressure of the four-bar linkage 8 can be adjusted by compressing or stretching the spring 18. The greater the pressure of the spring 18, the smoother the response of the four-bar linkage 8 to the terrain undulations. The smaller the pressure of the spring 18, the stronger the individual contouring flexibility of the four-bar linkage 8, which can adapt to the uneven terrain with a height difference of 5-15cm in the field.

[0041] The end of the four-bar linkage 8 furthest from the square steel frame 1 is fixed with a tillage hook 13 by bolts. The tillage hook 13 is made of thick iron plate, stamped with a thickness consistent with its working end to ensure soil loosening strength. It is L-shaped overall, with the working end ground into an arc shape to avoid scratching the beet roots. The connection end between the tillage hook 13 and the four-bar linkage 8 has an adjustment hole 14. The position is locked by a set screw 16 (M8 internal hexagonal set screw 16). After loosening the set screw 16, the tillage hook 13 can slide up and down along the adjustment hole 14 to adjust the soil penetration depth and meet the soil loosening needs of different soil hardness.

[0042] Seedling protection and spraying synergy component:

[0043] The seedling protection plate 10 is welded and fixed to the outer wall of the middle part of the cultivation hook 13. The seedling protection plate 10 is formed by bending iron plate, with the opening facing away from the four-bar linkage 8 and consistent with the working direction. The edges are rounded to avoid scratching the beet leaves. After loosening the top screw 16 on the cultivation hook 13, the height of the seedling protection plate 10 can be adjusted up and down to match the 30-50cm leaf layer thickness formed by 15-20 leaves during the canopy closure period of beets. This ensures that the leaves can be parted without compressing the plant. The seedling protection plate 10 is placed in front of and on the outside of the nozzle 12 to form a safety buffer zone, effectively preventing the beet plant stems and leaves from directly impacting the nozzle 12 and eliminating possible damage to the nozzle 12 during the operation.

[0044] A mounting rod 11 is welded and fixed between the inner walls of both sides of the seedling protection board 10. A tube 1 is rotatably connected to the middle of the mounting rod 11. Two set screws 16 are provided on the outside of the tube 1. A tube 2 is fixedly installed on the outside of the tube 1. A set screw 16 is provided on the outside of the tube 2. The nozzle 12 is slidably connected inside the tube 2. The nozzle 12 is a high-pressure adjustable nozzle made of brass and supports up-down and left-right angle adjustment. After adjustment, the position is locked by the set screws 16 on the tube 1 and tube 2. The direction of the nozzle 12 is consistent with the opening direction of the seedling protection board 10 to ensure that the liquid is sprayed onto the weed area at the bottom of the plant.

[0045] The branch pipe 7 of the sprinkler assembly is made of 304 stainless steel and can be fixed at the same end of all the fixing rods 6 by pipe clamps or other tools. The branch pipe 7 is evenly set with a corresponding number of branch interfaces along its length, corresponding to each seedling protection plate 10. Each branch interface is connected to the corresponding nozzle 12 through a PU material connecting pipe 9. The length of the connecting pipe 9 is reserved with a margin of 10-15cm to adapt to the contouring movement of the four-bar linkage 8.

[0046] Liquid storage, filtration and depth limiting system:

[0047] The original Brazilian weed killer's dedicated liquid storage tank 3 has a capacity of 800L and a top feeding port (with a 60-mesh filter screen for preliminary filtration of impurities in the liquid). The drain port 5 at the bottom of the storage tank 3 is connected to the input end of the liquid filter 4 via a hose. The liquid filter 4 has a built-in 100-mesh filter element and can be disassembled and cleaned regularly to prevent impurities in the liquid from clogging the nozzle 12.

[0048] A regulating valve is installed on the side wall of the storage tank 3 near the top. The regulating valve is connected to the branch pipe of the branch pipe 7 via a tee. By rotating the regulating valve handle, two functions can be achieved: first, to regulate the pressure of the pesticide solution in the branch pipe 7 to avoid excessive pressure causing the pesticide solution to splash onto the beet leaves and cause pesticide damage; second, to control the independent spraying of the left and right nozzles 12 (when the valve on one side is closed, the corresponding nozzle 12 stops spraying), which can meet the operational needs of the field edge area or the local area with concentrated weeds.

[0049] In addition to the large depth limiting wheel 20 at the front end of the square steel frame 1, each set of four-bar linkage 8 has a rear depth limiting wheel 15 installed at the bottom of the front end via a bracket 17. The rear depth limiting wheel 15 is a solid rubber wheel, and the mounting bracket 17 is made of thick iron plate (thickness is the same as that of the tillage hook 13). The bracket 17 is embedded in the buckle groove 19 at the front end of the four-bar linkage 8. The position of the bracket 17 is locked by the top screw 16 passing through the buckle groove 19. After releasing the top screw 16, the height of the rear depth limiting wheel 15 can be adjusted up and down. Together with the large depth limiting wheel 20 at the front end, it ensures that the distance between the nozzle 12 and the ground is stable at 20-30cm, avoiding spraying height deviation caused by terrain undulations.

[0050] Spraying power and control

[0051] In this embodiment, the spray pump is not integrated into the weed killer body, but is mounted on the rear drive shaft of the tractor unit via a coupling. The spray pump is a high-pressure pump made of cast iron, powered by the rear power take-off shaft of the tractor unit (replacing the traditional integrated pump in the machine body, improving power stability and ease of maintenance). The control switch for the spray pump is integrated into the tractor unit's cab, using a dual-way rotary switch: one way controls the start and stop of the spray pump, and the other way controls the on / off state of the left and right regulating valves. The operator can adjust the spraying status in real time from the cab without having to leave the vehicle.

[0052] Assembly and Workflow:

[0053] Assembly process:

[0054] Welding of square steel frame 1 to fixed frame 2: First, weld fixed frame 2 to the top center of square steel frame 1 to ensure vertical deviation ≤2°. Then, weld fixed rod 6 to the top of square steel frame 1 with spacing corresponding to four-bar linkage 8.

[0055] Installation of four-bar linkage 8: Fix the four-bar linkage 8 to one side of the square steel frame 1 through the bearing seat, install the adjusting spring 18 and adjust the initial pressure, then fix the cultivation hook 13 and the seedling protection plate 10 to the end of the four-bar linkage 8 in sequence and adjust to the initial height;

[0056] Installation of the liquid storage and filtration system: Fix the liquid storage tank 3 in the fixed frame 2, connect the drain port 5 and the medicine filter 4 with the pipe, install the regulating valve and connect it to the branch pipe 7;

[0057] Sprinkler assembly installation: Fix branch pipe 7 and connecting pipe 9, fix nozzle 12 on mounting rod 11 and adjust the initial angle downward 10° towards the working direction;

[0058] Depth limiting component installation: Fix the front large depth limiting wheel 20, install the rear depth limiting wheel 15 and adjust the initial height;

[0059] Connection of spraying pump and control: Install the spraying pump on the rear drive shaft of the locomotive, connect the pipe between the liquid filter 4 and the spraying pump, and lay the control line to the switch in the cab.

[0060] Work process:

[0061] Preparation stage: Inject the prepared pesticide solution into the storage tank 3, filter it through the top filter screen, check the sealing of each pipeline connection, start the locomotive and test the spray pump, turn on the switch in the cab, observe the atomization status and pressure of the nozzle 12, and ensure that there is no leakage or blockage.

[0062] Operation phase: The locomotive moves forward at a certain speed. The four-bar linkage 8 follows the terrain undulations and achieves single-unit contouring through the adjustment spring 18. The front large depth limit wheel 20 controls the overall operating depth, and the rear depth limit wheel 15 finely adjusts the height of the nozzle 12. The seedling protection plate 10 simultaneously opens the beet leaves to form an independent spraying space. The nozzle 12 accurately sprays the liquid to the weed area at the bottom of the plant.

[0063] Adjustment phase: If you encounter a dense weed area, increase the spraying pressure by switching in the cab. If you are working at the edge of the field, close the single-sided adjustment valve and stop spraying from the corresponding side nozzle 12. If the terrain is uneven, fine-tune the pressure of the spring 18 of the four-bar linkage 8 to improve the contouring flexibility.

[0064] Final stage: After the operation is completed, turn off the spray pump, inject clean water into the storage tank 3, start the spray pump to flush the pipes and nozzles 12 to avoid clogging by residual pesticide, and finally drain the clean water and check the wear of the parts.

[0065] This embodiment, through the above-described structural design, enables coordinated operations of loosening soil, protecting seedlings, and precise spraying, adapting to the large-scale operation needs of 100-horsepower tractors, significantly improving the efficiency and effectiveness of weed control during the sugar beet canopy closure period, and reducing planting costs.

[0066] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A special weed control and cultivation machine for sugar beet canopy closure, characterized in that, include: Square steel frame (1), the length of square steel frame (1) is about 6.5m. Multiple four-bar linkages (8) are rotatably installed on one side of square steel frame (1). The four-bar linkages (8) are equipped with two springs (18) for adjusting the pressure of the mechanism, which can realize single-unit conformal to adapt to the pit and uneven terrain. Multiple fixed rods (6) are fixedly installed on the top of square steel frame (1). The other end of each of the multiple four-bar linkages (8) is fixedly equipped with a cultivation hook (13) for loosening the soil. Multiple cultivation hooks (13) have seedling protection plates (10) fixedly installed on the outer wall of the middle part for separating beet leaves, protecting the leaves and forming an independent spraying space. It also includes multiple nozzles (12); Fixed frame (2), fixed frame (2) is fixedly installed at the middle position of the top of square steel frame (1), and the original Brazilian weed killer-specific liquid storage tank (3) is fixedly installed on the inside of the fixed frame (2). The liquid storage tank (3) is provided with a regulating valve for adjusting the spraying pressure and controlling the independent spraying of the left and right nozzles (12). The liquid medicine filter (4) is fixedly installed on the outer wall of the fixed frame (2) to filter the liquid medicine and prevent impurities from clogging the nozzle (12). The depth limiting component includes two large depth limiting wheels (20) installed at the front end of the square steel frame (1) to control the overall working depth and multiple rear depth limiting wheels (15) installed on the four-bar linkage (8). The depth limiting component as a whole is used to limit the distance between the nozzle (12) and the ground and the overall working depth of the machine body. The spraying assembly is installed on the fixed rod (6) and the seedling protection plate (10) for spraying the medicine; The spray pump is not integrated into the weed killer body, but is installed on the rear drive shaft of the tractor. It is powered by the rear power take-off shaft of the tractor and is used to deliver pesticide solution to the spraying components.

2. The special inter-row weed control machine for sugar beet canopy closure as described in claim 1, characterized in that, The two ends of the spring (18) of the four-bar linkage (8) are respectively connected to the connecting rod of the four-bar linkage (8) and the side wall of the square steel frame (1). The conformal pressure of the four-bar linkage (8) can be adjusted by adjusting the compression of the spring (18).

3. The special inter-row weed control machine for sugar beet canopy closure as described in claim 1, characterized in that, The depth limiting wheel (15) at the rear end of the depth limiting component is installed by a bracket (17), and the front end of the four-bar linkage (8) is provided with a buckle groove (19). The bracket (17) is embedded in the front end slot (19) of the four-bar linkage (8). The bracket (17) can slide up and down along the slot (19) to adjust the height of the rear end depth limiting wheel (15). After adjustment, it is fixed by the set screw (16).

4. The special inter-row weed control machine for sugar beet canopy closure as described in claim 1, characterized in that, An adjustment hole (14) is provided at the connection end between the tillage hook (13) and the four-bar linkage (8); Among them, the tillage hook (13) can slide up and down along the adjustment hole (14) to adjust the soil penetration depth.

5. A special weed control machine for sugar beet canopy closure as described in claim 1, characterized in that, The spray assembly includes a branch pipe (7), a mounting rod (11), and a connecting pipe (9). Among them, the branch pipe (7) is fixedly installed between the same end of multiple fixed rods (6), multiple mounting rods (11) are fixedly installed between the inner walls of both sides of the seedling protection board (10), and multiple nozzles (12) are fixedly installed in the middle of multiple mounting rods (11). The nozzles (12) support bidirectional angle adjustment in both up and down and left and right, and are fixed by the set screw (16) after adjustment. Each of the multiple branch pipe interfaces of the branch pipe (7) is fixedly installed with a connecting pipe (9), and the other end of the multiple connecting pipes (9) is connected to multiple nozzles (12).

6. A special weed control machine for sugar beet canopy closure as described in claim 1, characterized in that, The bottom of the storage tank (3) is fixedly equipped with a drain port (5); The input end of the liquid filter (4) is connected to the drain port (5) through a pipe, the output end of the liquid filter (4) is connected to the main pipe interface of the branch pipe (7) through a pipe, the input end of the spraying pump is connected to the output end of the liquid filter (4) through a pipe, and the output end of the spraying pump is connected to the main pipe interface of the branch pipe (7) through a pipe.

7. A special weed control machine for sugar beet canopy closure as described in claim 1, characterized in that, The multiple fixed rods (6) and the four-bar linkage (8) are located on the same side of the square steel frame (1), the openings of the multiple seedling protection plates (10) are oriented away from the four-bar linkage (8), and the orientation of the nozzles (12) is the same as the opening orientation of the multiple seedling protection plates (10).

8. A special weed control machine for sugar beet canopy closure as described in claim 1, characterized in that, The control switch of the spraying pump is integrated in the cab of the tractor, which can control the start and stop of spraying and the independent spraying switching of the left and right nozzles (12) in real time.

Images