Adjustable rape weeding device

Abstract

The invention belongs to the technical field of weeding devices, and particularly relates to an adjustable rape weeding device which comprises a rack and a PLC arranged on the right side wall of the rack, a mounting shaft is rotationally connected to the inner wall of the rack, and the left end of the mounting shaft penetrates through the rack. Before rape planting, when the weeding device is used for cleaning weeds on the land, and when it is detected that soil hardening is serious and the hardness is high, an operator can be reminded in time, the operator can adjust the moving speed of the weeding device, and therefore the situation that due to the fact that the moving speed of the weeding device is too high, a cutter bears huge impact force, and the cutter is damaged is avoided. According to the weeding device, the problems of deformation and even breakage caused by the fact that the stone blocks are broken are solved, an operator can be reminded to stop the weeding device in time after a cutter in the weeding device makes contact with the large stone blocks, and the problems that the cutter is bent, deformed and even broken due to the fact that the cutter collides with the stone blocks in the weeding process are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of weeding devices, and in particular relates to an adjustable rapeseed weeding device. Background Art

[0002] Weeds grow rapidly and compete with rapeseed for nutrients, water and sunlight in the soil. Weeding before planting can ensure that the nutrients in the soil are mainly absorbed by rapeseed, providing sufficient nutrient resources for rapeseed seed germination and seedling growth, and ensuring that rapeseed grows healthily. For example, a highly efficient and adjustable rapeseed weeding device is proposed in patent publication number CN221449154U.

[0003] In agricultural production, in order to completely chop up weeds and their roots and bury them deep in the soil, the existing weeding devices require the cutters to work deep into the soil. However, as the use time increases, the cutters frequently come into contact with the soil and debris for a long time, and inevitably wear and become blunt, which not only leads to a significant decrease in its ability to cut the soil, but also greatly reduces the rotary tillage effect. At the same time, during the operation, once the cutter collides with hard objects such as large stones, it is very easy to bend, deform, or even break directly. In addition, the cutter fixing screws may also loosen due to continuous vibration and external force, causing the cutter to fall off, seriously affecting the normal working performance of the weeder;

[0004] In addition, when using a weeding device to weed severely compacted soil, since the texture of this type of soil is extremely hard, if the moving speed of the weeding device is not reduced during operation, it will encounter great resistance during the forward movement. In this case, the cutter inside the weeding device will be subjected to a huge impact force, causing deformation and even serious problems such as breakage, which seriously affects the operating efficiency and equipment life.

[0005] Therefore, an adjustable rape weeding device is proposed to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide an adjustable rape weeding device in view of the above problems.

[0007] To achieve the above object, the present invention adopts the following technical solutions: an adjustable rape weeding device, comprising a frame and a PLC controller arranged on the right side wall of the frame, the inner wall of the frame is rotatably connected with a mounting shaft, the left end of the mounting shaft passes through the frame and is connected with a transmission assembly, and further comprises:

[0008] A plurality of installation and analysis components are evenly distributed on the surface of the installation shaft, and the installation shaft is connected with a tool through the installation and analysis components;

[0009] A connecting frame is installed on the front side wall of the frame. The connecting frame is a U-shaped structure. A connecting plate is fixedly connected to the front side wall of the connecting frame. A hydraulic cylinder is fixedly connected to the upper side wall of the connecting plate. A detection component is connected to the output end of the hydraulic cylinder.

[0010] Preferably, the transmission assembly includes a first gear fixedly connected to the left end of the mounting shaft, the left end of the mounting shaft passes through the frame and is connected to the first gear, the inner wall of the frame is fixedly connected to a hollow tube, the side wall of the hollow tube is rotatably connected to a driving shaft, the upper end of the driving shaft passes through the frame and is rotatably connected to the frame, the upper end of the driving shaft is transmission-connected to an external power mechanism, the interior of the hollow tube is rotatably connected to a transmission shaft via a bearing, the transmission shaft is transmission-connected to the driving shaft via a bevel gear transmission assembly, the left end of the transmission shaft passes through the frame and is fixedly connected to a second gear, and the left side wall of the frame is rotatably connected to a transmission gear that meshes with the first gear and the second gear.

[0011] Preferably, the installation and analysis component includes an arc-shaped cylinder fixedly connected to the wall of the installation shaft rod, the side wall of the arc-shaped cylinder is connected to a movable block through a spring, the side wall of the movable block close to the spring is fixedly connected to a conductive block, the conductive block is electrically connected to an external power supply, the inner wall of the arc-shaped cylinder is inlaid with an arc-shaped resistor plate, the end of the arc-shaped resistor plate away from the conductive block is electrically connected to a PLC controller, the side wall of the movable block is connected to a tool through bolts, the side wall of the arc-shaped cylinder is provided with a sliding opening that matches the tool, and the side wall of the arc-shaped cylinder is fixedly connected to a first lamp bead.

[0012] Preferably, the detection component includes a detection box fixedly connected to the output end of the hydraulic cylinder, the front side wall of the detection box is fixedly connected with a plurality of laterally distributed insertion tubes, a detection rod is inserted in the insertion tube, the detection rod is an inverted Z-shaped structure, the lower end of the detection rod is fixedly connected with a soil-turning plate, the upper side wall of the soil-turning plate is fixedly connected with a soil-turning cone block, the upper end of the detection rod passes through the insertion tube and is fixedly connected with a detection plate, the side walls of two adjacent detection plates close to each other are connected with contact caps through a positioning component, the side walls of the contact caps are provided with two inclined structures, the inner wall of the contact caps is connected to the side walls of the detection plate, the left inner wall of the detection box is inlaid with a conductive plate, the conductive plate is electrically connected to an external power supply, the right inner wall of the detection box is inlaid with a detection resistor board, the rear end of the detection resistor board is electrically connected to a PLC controller.

[0013] Preferably, the positioning component includes a positioning rod fixedly connected to the inner wall of the contact cap. A positioning cavity is formed inside the detection plate. One end of the positioning rod away from the contact cap passes through the positioning cavity and is fixedly connected to a moving plate. The positioning rod is slidably arranged in the positioning cavity. The moving plate and the side wall on the opposite side of the positioning cavity are fixedly connected to the same spring sleeved outside the positioning rod. A trigger switch is fixedly connected to the inner wall of the positioning cavity. The trigger switch is arranged on the moving path of the moving plate. A plurality of second lamp beads are fixedly connected to the front side wall of the detection box. The trigger switch is electrically connected to the corresponding second lamp bead through a PLC controller.

[0014] Preferably, a plurality of filter pins are fixedly connected to the lower side wall of the detection box, and the lower ends of the filter pins are higher than the lower surface of the soil turning plate.

[0015] Preferably, a buzzer is fixedly connected to the upper side wall of the frame, and the buzzer is electrically connected to the PLC controller.

[0016] Preferably, two traction components are connected to the upper side wall of the frame, and the traction components are connected to external traction equipment.

[0017] Compared with the existing technology, the advantages of an adjustable rapeseed weeding device are as follows:

[0018] 1. By setting the detection component, before rapeseed planting, when using the weeding device to clean the weeds on the land, it can automatically detect the hardness of the weeding soil. When it is detected that the soil is severely compacted and has a high hardness, it can promptly remind the operator, enabling the operator to adjust the moving speed of the weeding device, thus avoiding the problem that if the moving speed of the weeding device is too fast, the tool will bear a huge impact force, which may cause deformation or even breakage. In addition, it can automatically filter out small stones in the soil, and when the tool inside the weeding device touches a large stone, it can promptly remind the operator to stop the weeding device, facilitating the operator to clean the large stones, avoiding the problem that the tool collides with the stones during weeding, which may cause the tool to bend, deform or even break, and extending the service life of the tool.

[0019] 2. By setting the installation and analysis component, when the tool inside the weeding device is worn and its cutting ability decreases due to long-term use, it can promptly remind the operator to replace the worn tool, thus ensuring the cutting ability of the tool for the soil and also ensuring that the weeds are completely cleared.

[0020] 3. During the process of using the weeding device to clean impurities in the field, through the provided positioning component, when encountering relatively large stones in the soil, it can remind the operator of the position of the stones, facilitating the operator to find them in time and clean the relatively large stones. This not only avoids damage to the weeding device caused by the stones but also improves the convenience for the operator to find the stones. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of an adjustable rapeseed weeding device provided by the present invention;

[0022] Figure 2 is a schematic diagram of the positional relationship between the soil-turning plate and the tool in an adjustable rapeseed weeding device provided by the present invention;

[0023] Figure 3 is a schematic surface structure diagram of a detection box in an adjustable rapeseed weeding device provided by the present invention;

[0024] Figure 4 is a schematic internal structure diagram of a detection component in an adjustable rapeseed weeding device provided by the present invention;

[0025] Figure 5 is a schematic structural diagram of an installation and analysis component in an adjustable rapeseed weeding device provided by the present invention;

[0026] Figure 6 is a schematic structural diagram of a positioning component in an adjustable rapeseed weeding device provided by the present invention.

[0027] In the figure: 1 frame, 2 PLC controller, 3 mounting shaft, 4 tool, 5 connecting frame, 6 connecting plate, 7 hydraulic cylinder, 8 transmission component, 81 first gear, 82 transmission gear, 9 drive shaft, 10 transmission shaft, 11 second gear, 12 hollow tube, 13 installation and analysis component, 131 arc-shaped cylinder, 132 movable block, 14 conductive block, 15 arc-shaped resistance plate, 16 first lamp bead, 17 detection component, 171 detection box, 172 insertion tube, 18 detection rod, 19 soil-turning plate, 20 soil-turning cone block, 21 detection plate, 22 contact cap, 23 conduction plate, 24 detection resistance plate, 25 positioning component, 251 positioning rod, 252 positioning cavity, 26 moving plate, 27 trigger switch, 28 second lamp bead, 29 filter plug, 30 buzzer, 31 traction component. Detailed Embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0029] Such as Figures 1-6As shown, an adjustable rape weeding device includes a frame 1 and a PLC controller 2 arranged on the right side wall of the frame 1, the inner wall of the frame 1 is rotatably connected with a mounting shaft 3, the left end of the mounting shaft 3 passes through the frame 1 and is connected with a transmission assembly 8, the transmission assembly 8 includes a first gear 81 fixedly connected to the left end of the mounting shaft 3, the left end of the mounting shaft 3 passes through the frame 1 and is connected to the first gear 81, the inner wall of the frame 1 is fixedly connected with a hollow tube 12, the side wall of the hollow tube 12 is rotatably connected with a drive shaft 9, and the drive shaft 9 The upper end of the hollow tube 12 passes through the frame 1 and is rotatably connected to the frame 1. The upper end of the drive shaft 9 is connected to the external power mechanism. The inside of the hollow tube 12 is rotatably connected to the transmission shaft 10 through a bearing. The transmission shaft 10 is connected to the drive shaft 9 through a bevel gear transmission assembly 8. The left end of the transmission shaft 10 passes through the frame 1 and is fixedly connected to the second gear 11. The left side wall of the frame 1 is rotatably connected to the transmission gear 82 that meshes with the first gear 81 and the second gear 11, which can drive the installation shaft 3 and the tool 4 to rotate. It also includes:

[0030] A plurality of installation and analysis components 13 are evenly distributed on the surface of the installation shaft 3. The installation shaft 3 is connected with the tool 4 through the installation and analysis components 13. The installation and analysis components 13 include an arc-shaped cylinder 131 fixedly connected to the rod wall of the installation shaft 3. The side wall of the arc-shaped cylinder 131 is connected with a movable block 132 through a spring. The side wall of the movable block 132 close to the spring is fixedly connected with a conductive block 14. The conductive block 14 is electrically connected to an external power supply. An arc-shaped resistor plate 15 is inlaid on the inner wall of the arc-shaped cylinder 131. One end of the arc-shaped resistor plate 15 away from the conductive block 14 is electrically connected to the PLC controller 2. The side wall of the movable block 132 is connected to the tool 4 through bolts. A sliding opening matching the tool 4 is provided on the side wall of the arc-shaped cylinder 131. A first lamp bead 16 is fixedly connected to the side wall of the arc-shaped cylinder 131. When the tool 4 inside the weeding device is worn and the cutting ability is reduced due to long-term use, the operator can be reminded in time to replace the worn tool 4, thereby ensuring the ability of the tool 4 to cut the soil and ensuring that the weeds are thoroughly cleaned.

[0031] The connecting frame 5 is installed on the front side wall of the frame 1. The connecting frame 5 is of a U-shaped structure. A connecting plate 6 is fixedly connected to the front side wall of the connecting frame 5. A hydraulic cylinder 7 is fixedly connected to the upper side wall of the connecting plate 6. The output end of the hydraulic cylinder 7 is connected to a detection assembly 17. The detection assembly 17 includes a detection box 171 fixedly connected to the output end of the hydraulic cylinder 7. A plurality of laterally distributed insertion cylinders 172 are fixedly communicated with the front side wall of the detection box 171. A detection rod 18 is inserted into the insertion cylinder 172. The detection rod 18 is of an inverted Z-shaped structure. A soil-turning plate 19 is fixedly connected to the lower end of the detection rod 18. A soil-turning cone 20 is fixedly connected to the upper side wall of the soil-turning plate 19. The upper end of the detection rod 18 passes through the insertion cylinder 172 and is fixedly connected with a detection plate 21. Contact caps 22 are connected to the side walls of the adjacent two detection plates 21 on the side close to each other through a positioning assembly 25. Two inclined surface structures are provided on the side wall of the contact cap 22. The inner wall of the contact cap 22 is connected to the side wall of the detection plate 21. A conduction plate 23 is embedded in the left inner wall of the detection box 171. The conduction plate 23 is electrically connected to an external power supply. A detection resistance plate 24 is embedded in the right inner wall of the detection box 171. The rear end of the detection resistance plate 24 is electrically connected to a PLC controller 2. Before rapeseed is planted, when using a weeding device to clean the weeds on the land, the hardness of the weeding soil can be automatically detected. When it is detected that the soil is severely compacted and has a high hardness, the operator can be reminded in time, so that the operator can adjust the moving speed of the weeding device, thereby avoiding the problem that if the moving speed of the weeding device is too fast, the tool 4 will bear a huge impact force, which will cause deformation and even breakage. In addition, small stones in the soil can be automatically filtered, and when the tool 4 inside the weeding device contacts a large stone, the operator can be reminded in time to stop the weeding device, which is convenient for the operator to clean the large stones, avoiding the problem that if the tool 4 collides with the stones during weeding, it will cause the tool 4 to bend, deform or even break, and prolonging the service life of the tool 4.

[0032] The positioning component 25 includes a positioning rod 251 fixedly connected to the inner wall of the contact cap 22. A positioning cavity 252 is formed inside the detection plate 21. One end of the positioning rod 251 away from the contact cap 22 passes through the positioning cavity 252 and is fixedly connected to a moving plate 26. The positioning rod 251 is slidably arranged in the positioning cavity 252. A spring sleeved on the outer side of the positioning rod 251 is fixedly connected between the moving plate 26 and the side wall on the opposite side of the positioning cavity 252. A trigger switch 27 is fixedly connected to the inner wall of the positioning cavity 252. The trigger switch 27 is arranged on the moving path of the moving plate 26. A plurality of second lamp beads 28 are fixedly connected to the front side wall of the detection box 171. The trigger switch 27 is electrically connected to the corresponding second lamp bead 28 through the PLC controller 2. During the process of using the weeding device to clean the impurities in the field, when encountering relatively large stones in the soil, it can remind the operator of the position of the stones, facilitating the operator to find them in time and clean the relatively large stones. While avoiding damage to the weeding device caused by the stones, it also improves the convenience for the operator to find the stones.

[0033] A plurality of filtering spikes 29 are fixedly connected to the lower side wall of the detection box 171. The lower ends of the filtering spikes 29 are higher than the lower surface of the soil turning plate 19, which can filter the soil surface and the smaller stones turned out by the soil turning plate 19, avoiding contact between the tool 4 and the stones.

[0034] A buzzer 30 is fixedly connected to the upper side wall of the frame 1. The buzzer 30 is electrically connected to the PLC controller 2. When the weeding device moves and weeds on the land with relatively hard soil, it can timely remind the operator that the soil hardness is relatively high and the moving speed of the weeding device needs to be adjusted in time.

[0035] Two traction components 31 are connected to the upper side wall of the frame 1. The traction components 31 are connected to external traction equipment, facilitating the connection between the traction equipment and the weeding device.

[0036] The operating principle of the present invention is described as follows: The operator connects the frame 1 and an external traction device together through the traction component 31, and makes the drive shaft 9 be in transmission connection with the power source inside the traction device (align the drive shaft 9 of the weeding device with the universal joint connecting shaft of the traction device approximately, ensure that the two shafts are as much as possible on the same straight line after connection, reduce the angular deviation of the universal joint connecting shaft, insert one end of the universal joint connecting shaft into the spline of the power output shaft of the traction device, ensure that the insertion depth is sufficient and firm, and then fix it with a fixing pin or a clamp. Connect the other end of the universal joint connecting shaft to the connecting flange or spline sleeve on the drive shaft 9 of the weeding device, and tighten and fix it with bolts or other fastening devices). Then, drive the weeding device to move to the land to be weeded by the traction device. Then, control the weeding device to move downward to a set position through the lifting mechanism on the traction device, so that the cutter 4 is inserted into the ground to a depth of 8 - 10 cm, and a better weeding effect can be achieved. Then, the operator controls the rotation of the universal joint connecting shaft inside the traction device and controls the movement of the traction device. The universal joint connecting shaft controls the rotation of the drive shaft 9, and the drive shaft 9 drives the transmission shaft 10 to rotate through the bevel gear transmission assembly 8. The transmission shaft 10 controls the rotation of the mounting shaft 3 through the meshing of the second gear 11, the transmission gear 82 and the first gear 81. The mounting shaft 3 drives the cutter 4 to rotate through the mounting and analyzing assembly 13, and uses the cutter 4 to crush the weeds and the roots located inside the soil;

[0037] While the frame 1 drives the tool 4 to move downward, the PLC controller 2 also controls the hydraulic cylinder 7 to work. The hydraulic cylinder 7 drives the detection box 171 and the soil-turning plate 19 to move downward to a specified position, so that the soil-turning plate 19 is inserted into the ground to a depth of 10 - 11 cm, and the detection box 171 also drives a plurality of filter pins 29 to be inserted into the ground at a depth of 5 - 6 cm. While the traction device drives the weeding device forward, the soil-turning plate 19 moves inside the soil, preliminarily loosening the soil with the soil-turning plate 19, and small stones inside the soil can be cleared to the soil surface with the soil-turning plate 19, and the filter pins 29 are used to push the stones to prevent the subsequent tool 4 from contacting the stones. When encountering a large stone that is difficult to turn over, the soil-turning plate 19 in contact with the large stone drives the corresponding detection rod 18 to quickly move in the direction close to the detection box 171. The corresponding detection rod 18 drives the corresponding detection plate 21 to move, so that the detection plate 21 drives the contact cap 22 to separate from other contact caps 22. Under the action of the spring tension, the moving plate 26 drives the contact cap 22 through the positioning rod 251. During the movement of the moving plate 26, it will squeeze the trigger switch 27, and the trigger switch 27 will control the traction device to stop immediately through the PLC controller 2 and control the corresponding second lamp bead 28 to light up, indicating that there are large stones, tree roots and other sundries in the surface soil, which need to be manually cleaned by the operator. Through the set second lamp bead 28, the position of the large sundries can be guided, which is convenient for the operator to quickly find and clean, avoiding the problem that the tool 4 contacts with large sundries and causes the tool 4 to break and be damaged;

[0038] When the weeding device weeds in a field with severely compacted and hard soil, multiple soil-turning plates 19 will all receive a large resistance. The soil-turning plates 19 drive a plurality of detection plates 21 to move synchronously in the direction inside the detection box 171 by a relatively long distance through the detection rods 18. During the movement, the leftmost and rightmost detection plates 21 respectively contact the conduction plate 23 and the position near the rear end of the detection resistance plate 24. The conduction plate 23 is electrically connected to the power supply inside the traction device, and the rear end of the detection resistance plate 24 is electrically connected to the PLC controller 2. The external current will be transmitted to the detection resistance plate 24 through a plurality of detection plates 21 and contact caps 22 (the detection plates 21 and contact caps 22 are in contact, and both the detection plates 21 and contact caps 22 are conductors). When the voltage of the power supply inside the traction device remains unchanged, the intensity of the electrical signal transmitted to the circuit of the PLC controller 2 becomes larger. When the PLC controller 2 detects that the intensity of the electrical signal received from the detection resistance plate 24 is large, it will remind the operator to slow down the moving speed of the traction device through the buzzer 30 with the tone of "tick, tick, tick";

[0039] During the process of the installation shaft 3 driving the tool 4 to rotate through the installation analysis component 13, when the tool 4 contacts the soil, the tool 4 will be subjected to a large resistance. Under the action of the resistance, the tool 4 will drive the conductive block 14 to slide in the arc-shaped cylinder 131 through the movable block 132. During the movement of the conductive block 14, it will contact the arc-shaped resistor plate 15. The conductive block 14 is electrically connected to the power supply inside the traction device, and the rear end of the arc-shaped resistor plate 15 is electrically connected to the PLC controller 2. When the wear degrees of all the tools 4 are the same, the intensities of multiple electrical signals transmitted to the circuit of the PLC controller 2 are approximately the same (the number of installation analysis components 13 is multiple, and the number of electrical signals transmitted to the circuit of the PLC controller 2 is also multiple). When a certain tool 4 is severely worn, the distance that the conductive block 14 corresponding to this tool 4 moves backward will also increase, causing the conductive block 14 to contact the position near the rear end of the corresponding arc-shaped resistor plate 15. Under the condition of constant voltage, the length of the resistor connected to the circuit of the PLC controller 2 becomes shorter, the resistance becomes smaller, and the current becomes larger. When the PLC controller 2 detects that a certain electrical signal is greater than other electrical signals, the PLC controller 2 will control the buzzer 30 to remind the operator that the tool 4 is worn with the tone of "ring-ring-ring", and the PLC controller 2 will also control the corresponding first lamp bead 16 to emit light, facilitating the operator to quickly find the severely worn tool 4 and replace it, thus ensuring the working performance of the weeding device.

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

Claims

1. An adjustable rape weeding device, comprising a frame (1) and a PLC controller (2) arranged on the right side wall of the frame (1), the inner wall of the frame (1) is rotatably connected to a mounting shaft (3), the left end of the mounting shaft (3) passes through the frame (1) and is connected to a transmission assembly (8), characterized in that: Also includes: A plurality of installation and analysis components (13) are evenly distributed on the surface of the installation shaft (3); the installation shaft (3) is connected to a tool (4) via the installation and analysis components (13); A connecting frame (5) is mounted on the front side wall of the frame (1); the connecting frame (5) is a U-shaped structure; the front side wall of the connecting frame (5) is fixedly connected to a connecting plate (6); the upper side wall of the connecting plate (6) is fixedly connected to a hydraulic cylinder (7); and the output end of the hydraulic cylinder (7) is connected to a detection component (17).

2. The adjustable rape weeding device according to claim 1, characterized in that: The transmission assembly (8) comprises a first gear (81) fixedly connected to the left end of the mounting shaft (3); the left end of the mounting shaft (3) passes through the frame (1) and is connected to the first gear (81); the inner wall of the frame (1) is fixedly connected to a hollow tube (12); the side wall of the hollow tube (12) is rotatably connected to a driving shaft (9); the upper end of the driving shaft (9) passes through the frame (1) and is rotatably connected to the frame (1); the upper end of the driving shaft (9) is transmission-connected to an external power mechanism; the interior of the hollow tube (12) is rotationally connected to a transmission shaft (10) via a bearing; the transmission shaft (10) is transmission-connected to the driving shaft (9) via a bevel gear transmission assembly (8); the left end of the transmission shaft (10) passes through the frame (1) and is fixedly connected to a second gear (11); the left side wall of the frame (1) is rotatably connected to a transmission gear (82) that meshes with the first gear (81) and the second gear (11).

3. The adjustable rape weeding device according to claim 1, characterized in that: The installation analysis component (13) comprises an arc-shaped cylinder (131) fixedly connected to the rod wall of the installation shaft (3); the side wall of the arc-shaped cylinder (131) is connected to a movable block (132) via a spring; the side wall of the movable block (132) close to the spring is fixedly connected to a conductive block (14); the conductive block (14) is electrically connected to an external power supply; the inner wall of the arc-shaped cylinder (131) is inlaid with an arc-shaped resistor plate (15); the end of the arc-shaped resistor plate (15) away from the conductive block (14) is electrically connected to a PLC controller (2); the side wall of the movable block (132) is connected to a tool (4) via a bolt; the side wall of the arc-shaped cylinder (131) is provided with a sliding opening that matches the tool (4); and the side wall of the arc-shaped cylinder (131) is fixedly connected to a first lamp bead (16).

4. The adjustable rape weeding device according to claim 1, characterized in that: The detection assembly (17) comprises a detection box (171) fixedly connected to the output end of the hydraulic cylinder (7); the front side wall of the detection box (171) is fixedly connected to a plurality of laterally distributed insertion tubes (172); a detection rod (18) is inserted into the insertion tube (172); the detection rod (18) is an inverted Z-shaped structure; the lower end of the detection rod (18) is fixedly connected to a soil turning plate (19); the upper side wall of the soil turning plate (19) is fixedly connected to a soil turning cone block (20); the upper end of the detection rod (18) passes through the insertion tube (172) and is fixedly connected to the detection plate (20); 1), the side walls of two adjacent detection plates (21) close to each other are connected to contact caps (22) through positioning components (25), the side walls of the contact caps (22) are provided with two inclined structures, the inner wall of the contact caps (22) is connected to the side wall of the detection plate (21), the left inner wall of the detection box (171) is inlaid with a conductive plate (23), the conductive plate (23) is electrically connected to an external power supply, the right inner wall of the detection box (171) is inlaid with a detection resistor plate (24), the rear end of the detection resistor plate (24) is electrically connected to a PLC controller (2).

5. The adjustable rape weeding device according to claim 4, characterized in that: The positioning assembly (25) comprises a positioning rod (251) fixedly connected to the inner wall of the contact cap (22); a positioning cavity (252) is provided inside the detection plate (21); one end of the positioning rod (251) away from the contact cap (22) passes through the positioning cavity (252) and is fixedly connected to a movable plate (26); the positioning rod (251) is slidably arranged in the positioning cavity (252); the side walls of the movable plate (26) and the positioning cavity (252) on the opposite side are fixedly connected with a same spring sleeved on the outer side of the positioning rod (251); the inner wall of the positioning cavity (252) is fixedly connected with a trigger switch (27); the trigger switch (27) is arranged at the moving path of the movable plate (26); a plurality of second lamp beads (28) are fixedly connected to the front side wall of the detection box (171); the trigger switch (27) is electrically connected to the corresponding second lamp beads (28) through the PLC controller (2).

6. The adjustable rape weeding device according to claim 5, characterized in that: A plurality of filter pins (29) are fixedly connected to the lower side wall of the detection box (171), and the lower ends of the filter pins (29) are higher than the lower surface of the soil turning plate (19).

7. The adjustable rape weeding device according to claim 1, characterized in that: A buzzer (30) is fixedly connected to the upper side wall of the frame (1), and the buzzer (30) is electrically connected to the PLC controller (2).

8. The adjustable rape weeding device according to claim 1, characterized in that: The upper side wall of the frame (1) is connected to two traction components (31), and the traction components (31) are connected to external traction equipment.

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