A mobile weeding and fertilizing device

Abstract

The application discloses a mobile weeding and fertilizing device, which comprises a fixing frame, a plurality of fixing columns are installed at the bottom of the fixing frame, the bottom ends of two fixing columns are provided with moving wheels, the bottom ends of the other two fixing columns are provided with two rotating wheels, a plurality of weeding plates are installed on the outer walls of the two rotating wheels, a collecting box is installed at one end of the fixing frame, a crushing mechanism is installed in the collecting box, and a transfer mechanism is arranged between the moving wheels and the rotating wheels of the fixing frame. In the application, in the process that the device body advances on the ploughing surface, the plurality of weeding plates are driven to rotate together by controlling the two rotating wheels, weeds can be conveniently dug out from the soil, the problem that weed roots remain in the soil to grow again is avoided, the weeds dug out by the plurality of weeding plates are collected by the plurality of rakes of the transfer mechanism moving forward in the soil, the weed roots can also be prevented from rooting in the soil again, and the influence of weeds on the growth of crops sowed in the soil is reduced.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery and equipment technology, specifically to a mobile weeding and fertilizing device. Background Technology

[0002] Crop farming is a major component of agriculture. It is a social production sector that utilizes the life functions of plants to obtain food, by-products, feed, and industrial raw materials through artificial cultivation. It includes the cultivation of various crops, trees, fruit trees, medicinal plants, and ornamental plants. Currently, agricultural planting requires fertilization of cultivated land to ensure the soil retains sufficient nutrients during the planting process. Simultaneously, when spraying fertilizer onto the cultivated land, weeding is necessary to prevent weeds from absorbing nutrients from the soil. Therefore, existing weeding and fertilization equipment is required.

[0003] In existing weeding and fertilizing devices, cutting blades are used to remove weeds from the soil. However, these blades can only remove weeds from the soil surface, but cannot clear the roots inside the soil. Therefore, when fertilizer is applied to the soil surface, the roots inside the soil absorb the nutrients from the fertilizer and regrow, resulting in insufficient nutrients for crops and affecting their growth. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a mobile weeding and fertilizing device.

[0005] A mobile weeding and fertilizing device includes a fixed frame with multiple fixed columns installed at the bottom. Two of the fixed columns have movable wheels rotatably mounted on their bottom ends via a first rotating shaft, and two rotating wheels are rotatably mounted on the bottom ends of the other two fixed columns via a second rotating shaft. Multiple weeding plates are threaded onto the outer walls of the two rotating wheels via bolts. A collection box is installed at one end of the fixed frame near the two rotating wheels. A shredding mechanism for cutting weeds is installed inside the collection box. A transfer mechanism for transferring weeds to the collection box is located between the two movable wheels and the rotating wheels on the fixed frame.

[0006] Optionally, a feeding hopper is installed on the top of the collection box, and two sealing plates are symmetrically installed on the top of the feeding hopper. Two limiting plates for fixing the collection bag are rotatably installed on the top of the two sealing plates. The ends of the two limiting plates away from the rotating parts and the top of the sealing plates are provided with connecting holes of the same size.

[0007] Optionally, the bottom of the collection box is provided with a discharge port, and a sealing plate for sealing the discharge port is installed at the bottom of the collection box.

[0008] Optionally, the crushing mechanism includes a drive shaft, both ends of which are rotatably mounted inside the collection box, and multiple crushing blades are mounted on the outer wall of the drive shaft.

[0009] Optionally, the transfer mechanism includes two slides opened on the top of the fixed frame, each slide having a slider installed inside, and each slider having a fixing block installed at its top.

[0010] Optionally, the two fixed blocks are connected to a first rotating rod at their adjacent ends via a third rotating shaft. A movable rod is provided below the first rotating rod, and multiple rake teeth are installed at the bottom end of the movable rod.

[0011] Optionally, a first lead screw and a first slide rod are respectively installed at the bottom ends of the first rotating rod, and the bottom ends of the first lead screw and the first slide rod pass through the moving rod.

[0012] Optionally, two vertical plates are symmetrically installed on the outer wall of the movable rod away from the multiple rake teeth, and grooves are provided on the outer wall of the side of the two vertical plates that are close to each other.

[0013] Optionally, a second lead screw and a second slide rod are respectively installed inside the two grooves. The outer walls of the second lead screw and the second slide rod are each equipped with a moving block. The two moving blocks are connected to a second rotating rod at their adjacent ends via a first connecting shaft.

[0014] Optionally, a plurality of cutting blades are rotatably mounted on the outer wall of the second rotating rod near the plurality of rake teeth via a plurality of second connecting shafts, and the plurality of cutting blades are respectively located in the gaps between the plurality of rake teeth.

[0015] The beneficial effects of this invention are reflected in:

[0016] 1. In this invention, as the device moves forward on the surface of cultivated land, it controls two rotating wheels to drive multiple weeding plates to rotate together, which facilitates the rotation and digging of weeds from the soil, avoiding the problem of weed roots remaining in the soil and growing again. The multiple rake teeth of the transfer mechanism move forward together in the soil to collect the weeds dug out by the multiple weeding plates, which also prevents the weed roots from re-rooting into the soil and reduces the impact of weeds on the growth of crops sown in the soil.

[0017] 2. In this invention, after collecting a sufficient amount of weeds at the top of multiple rake teeth of the transfer mechanism, the multiple rake teeth are rotated upwards through the cooperation of other parts of the transfer mechanism. At this time, the sealing plate near the multiple rake teeth, which is in a vertical state, can be used as a guide plate. The sealing plate is controlled to rotate in an inclined state towards the multiple rake teeth. The weeds fall downwards from inside the multiple rake teeth to the top of the inclined sealing plate and then slide downwards into the collection box for storage. The weeds are crushed and cut by the crushing mechanism inside the collection box. The crushed weeds are then mixed with fertilizer by multiple rotating crushing blades, so that the crushed weeds and fertilizer are fully mixed. Finally, they are discharged outwards through the discharge port, which facilitates the reuse of the cleared weeds and reduces the adverse effects of weeds withering in the cultivated land.

[0018] 3. In this invention, after the device is used, all the fertilizer inside the collection box is discharged into the cultivated land. The collected weeds can be put into the collection box and crushed by multiple crushing blades. Then, two sealing plates are controlled to close the feed hopper downwards, and the sealing plate is controlled to close the discharge outlet. This allows the crushed fresh weeds to be fermented inside the collection box, which facilitates the subsequent preparation of biomass granular fertilizer from the fermented fresh weeds. This fertilizer is then discharged into the cultivated land to improve the fertility and nutrients of the cultivated land and promote better crop growth.

[0019] 4. In this invention, while multiple rake teeth rotate upwards, throwing the collected weeds into the collection box, the sharp parts of multiple cutting blades can be controlled to contact the weeds after the multiple rake teeth rotate upwards to the top of the collection box. With the help of the second screw, the multiple cutting blades move together towards the weeds, which can pre-cut the collected weeds, reducing the time for the subsequent multiple shredders to shred the weeds and improving the efficiency of weed shredding. Furthermore, when the dug-up weeds need to be dried before recycling, the weeds collected at the top of the multiple rake teeth can be directly cut by the multiple cutting blades, preventing the weeds from taking root and growing again on the cultivated land surface, accelerating the withering of the weeds on the cultivated land surface, and facilitating the subsequent drying of the weeds. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the overall structure of a mobile weeding and fertilizing device proposed in this invention.

[0022] Figure 2 This is a schematic diagram of the structure after the two sealing plates in this invention are opened;

[0023] Figure 3 This is a schematic diagram of the structure in this invention where the transfer mechanism moves to the front of the two rotating wheels;

[0024] Figure 4 This is a schematic diagram of the internal structure of the collection box in this invention;

[0025] Figure 5 This is a schematic diagram of the transfer mechanism in this invention;

[0026] Figure 6 for Figure 5 A schematic diagram of the structure of the two vertical plates in the middle;

[0027] Figure 7 This is a schematic diagram of the structure in this invention where the two moving blocks are separated from the groove;

[0028] Figure 8 This is a schematic diagram of the structure of the second rotating rod and the cutting blade in this invention.

[0029] In the attached diagram: 1. Fixed frame; 2. Fixed column; 3. Second rotating shaft; 4. Rotating wheel; 5. Weeding board; 6. Collection box; 7. Feed hopper; 8. Sealing plate; 9. Moving wheel; 10. Slide groove; 11. Fixed block; 12. First rotating rod; 13. Rake teeth; 14. Discharge port; 15. Cutting blade; 16. Limiting plate; 17. Drive shaft; 18. Crushing blade; 19. Sealing plate; 20. Sliding block; 21. First lead screw; 22. First sliding rod; 23. Moving rod; 24. Vertical plate; 25. Groove; 26. Second rotating rod; 27. Second lead screw; 28. Moving block; 29. ​​Second connecting shaft; 30. Second sliding rod. Detailed Implementation

[0030] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0031] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0032] like Figures 1-8As shown, a mobile weeding and fertilizing device includes a fixed frame 1. Multiple fixed posts 2 are installed at the bottom of the fixed frame 1. Two of the fixed posts 2 have movable wheels 9 rotatably mounted on their bottom ends via a first rotating shaft. The bottom ends of the other two fixed posts 2 have two rotating wheels 4 rotatably mounted on their bottom ends via a second rotating shaft 3. Multiple weeding plates 5 are threaded onto the outer walls of the two rotating wheels 4 via bolts. A collection box 6 is installed at one end of the fixed frame 1 near the two rotating wheels 4. A shredding mechanism for cutting weeds is installed inside the collection box 6. A transfer mechanism for transferring weeds to the collection box 6 is located between the two movable wheels 9 and the rotating wheels 4 on the fixed frame 1.

[0033] As a technical optimization of the present invention, a feeding hopper 7 is installed on the top of the collection box 6. Two sealing plates 8 are symmetrically installed on the top of the feeding hopper 7. Two limiting plates 16 for fixing the collection bag are rotatably installed on the top of each of the two sealing plates 8. The ends of the two limiting plates 16 away from the rotating parts and the top of the sealing plates 8 are provided with connecting holes of the same size. The two sealing plates 8 are rotatably connected to the top of the feeding hopper 7 by an electric rotating shaft. The electric rotating shaft can be driven by an external drive device, thereby enabling the two sealing plates 8 to automatically open and close on the top of the feeding hopper 7. When it is not necessary to put weeds into the inside of the collection box 6, the external collection bag for collecting weeds can be placed on the top of the two sealing plates 8 and connected to the connecting holes of the outer wall of the sealing plate 8 through the limiting plates 16 by means of a fixing member, thereby limiting and fixing the position of the collection bag between the two sealing plates 8, which facilitates the collection of weeds.

[0034] As a technical optimization of the present invention, the bottom of the collection box 6 is provided with a discharge port 14, and a sealing plate 19 for sealing the discharge port 14 is installed at the bottom of the collection box 6.

[0035] As a technical optimization of the present invention, the crushing mechanism includes a drive shaft 17, both ends of which are rotatably mounted inside the collection box 6. Multiple crushing blades 18 are mounted on the outer wall of the drive shaft 17. In actual use, a first servo motor is pre-installed on one side of the outer wall of the collection box 6. The output end of the first servo motor is connected to one end of the drive shaft 17, thereby enabling the drive shaft 17 and the multiple crushing blades 18 to rotate inside the collection box 6.

[0036] As a technical optimization of the present invention, the transfer mechanism includes two slide grooves 10 opened on the top of the fixed frame 1. A slider 20 is installed inside each of the two slide grooves 10, and a fixing block 11 is installed at the top of each slider 20. A linear motor is pre-installed inside each of the two slide grooves 10. The two linear motors can drive the two sliders 20 to move back and forth within their respective slide grooves 10, thereby causing the two fixing blocks 11 to move back and forth on the top of the fixed frame 1.

[0037] As a technical optimization of the present invention, the two fixed blocks 11 are connected to a first rotating rod 12 at their adjacent ends via a third rotating shaft. A moving rod 23 is provided below the first rotating rod 12, and a plurality of rake teeth 13 are installed at the bottom end of the moving rod 23. A first driving device is pre-installed inside one of the fixed blocks 11, and the output end of the first driving device is connected to one of the third rotating shafts, thereby driving the first rotating rod 12 to rotate.

[0038] As a technical optimization of the present invention, a first lead screw 21 and a first slide bar 22 are respectively installed at the bottom ends of the first rotating rod 12, and the bottom ends of the first lead screw 21 and the first slide bar 22 both pass through the moving rod 23. A second driving device is pre-installed inside the first rotating rod 12, and the output end of the second driving device is connected to one end of the first lead screw 21, thereby driving the first lead screw 21 to rotate, so that the moving rod 23 can drive multiple rake teeth 13 to move up and down through the rotation of the first lead screw 21.

[0039] As a technical optimization of the present invention, two vertical plates 24 are symmetrically installed on the outer wall of the moving rod 23 away from the multiple rake teeth 13, and grooves 25 are provided on the outer wall of the side of the two vertical plates 24 that are close to each other.

[0040] As a technical optimization of the present invention, a second lead screw 27 and a second slide bar 30 are respectively installed inside the two grooves 25. Movable blocks 28 are installed on the outer walls of both the second lead screw 27 and the slide bar 30. The ends of the two movable blocks 28 that are close to each other are connected to a second rotating rod 26 via a first connecting shaft. In actual use, a second servo motor is pre-installed at the top of one of the vertical plates 24. The output end of the second servo motor is connected to the top of the second lead screw 27, thereby driving the second lead screw 27 to rotate inside the groove 25, causing the movable blocks 28 and the second rotating rod 26 to move up and down. A third driving device is pre-installed inside one of the movable blocks 28. The output end of the third driving device is connected to the first connecting shaft, thereby driving the second rotating rod 26 to rotate.

[0041] As a technical optimization of the present invention, a plurality of cutting blades 15 are rotatably mounted on the outer wall of the second rotating rod 26 near the plurality of rake teeth 13 via a plurality of second connecting shafts 29. The plurality of cutting blades 15 are respectively located in the gaps between the plurality of rake teeth 13. A drive mechanism is pre-installed inside the second rotating rod 26, which can drive the plurality of second connecting shafts 29 to rotate, thereby causing the plurality of cutting blades 15 to rotate accordingly.

[0042] In this invention, when the user uses the device, the device is transported to the farmland where weeding and fertilization are required. The two sealing plates 8 are controlled to rotate upwards to a vertical position, so that the top of the feed hopper 7 is open. Sufficient fertilizer is manually added into the collection box 6, and the two sealing plates 8 are kept in the same position. The collection bag for collecting weeds is placed on the surface of the two sealing plates 8. After the position of the collection bag is limited and fixed by multiple limiting plates 16 and fixing parts, the two rotating wheels 4 are controlled to drive multiple weeding plates 5 to rotate together, so that the weeds can be rotated and dug out of the soil. The farmland is also loosened by rotating the two moving wheels 9 in conjunction with the rotation of the two rotating wheels 4. The device moves forward as a whole to carry out weeding operations on the farmland.

[0043] During the process of weeding the farmland, the first lead screw 21 is controlled to rotate, which drives the moving rod 23 and multiple rake teeth 13 to move downward together until the bottom of the multiple rake teeth 13 extends into the loosened soil. As the device continues to move forward, it drives the multiple rake teeth 13 to move forward together in the soil, and collects the weeds dug out by the multiple weeding plates 5. After the weeds are removed, the sealing plate 19 can be controlled to rotate downward to open, so that the fertilizer inside the collection box 6 can be discharged out of the outlet 14 into the farmland, and the farmland can be fertilized simultaneously.

[0044] After the tops of the multiple rake teeth 13 have collected a sufficient amount of weeds, the two sliders 20 can be controlled to move multiple parts of the transfer mechanism together towards the collection box 6. After the two sliders 20 have moved to the appropriate position, the first lead screw 21 can be controlled to reverse, driving the moving rod 23 and the multiple rake teeth 13 to move upward to the maximum height. (Refer to...) Figure 2 As shown, the first rotating rod 12 is controlled to rotate clockwise upward between the two fixed blocks 11, causing the weeds on the top of the multiple rake teeth 13 to fall into the pre-set collection bag between the two sealing plates 8, achieving the effect of automatically collecting weeds and preventing weeds from remaining in the cultivated land and affecting the subsequent sowing and growth of crops. During the upward rotation of the multiple rake teeth 13, the second lead screw 27 can be controlled to rotate simultaneously, causing the two moving blocks 28 and the second rotating rod 26 to move downward together, and causing the multiple horizontal cutting blades 15 to press and fix the weeds on the top of the multiple rake teeth 13 downward, preventing the weeds from falling from the top of the multiple rake teeth 13 during the upward rotation and failing to enter the pre-set collection bag for collection.

[0045] If it is necessary to shred the collected weeds and spread them on the farmland along with fertilizer to promote the vigorous growth of subsequent crops, the collection bag originally installed between the two sealing plates 8 can be removed. The weeds collected on top of the multiple rake teeth 13 can be collected by repeating the above steps. With the multiple rake teeth 13 rotating upwards, the sealing plate 8, which is vertical near the multiple rake teeth 13, can be used as a guide plate. Control the sealing plate 8 to rotate in the direction of the multiple rake teeth 13 and tilt it. The weeds fall down from inside the multiple rake teeth 13 to the top of the tilted sealing plate 8 and slide down into the collection box 6 for storage. Control the drive shaft 17 to drive the multiple shredders 18 to rotate together, thereby driving the multiple shredders 18 to shred and cut the weeds. With the help of the multiple rotating shredders 18, the shredded weeds and fertilizer are mixed and stirred, so that the shredded weeds and fertilizer are fully mixed. Finally, they are discharged out through the discharge port 14, which makes it easy to reuse the cleared weeds and reduce the adverse effects of weeds withering in the farmland.

[0046] Furthermore, when the collection box 6 contains only fertilizer, the drive shaft 17 drives multiple crushing blades 18 to rotate inside the collection box 6, which can process the clumps in the fertilizer and prevent the clumps from blocking the discharge outlet 14 or being discharged directly into the farmland where they cannot be integrated into the soil. Moreover, the multiple rotating crushing blades 18 can also mix and stir the various fertilizers put into the collection box 6, which facilitates the subsequent fertilization of the farmland.

[0047] After the device is used, all the fertilizer inside the collection box 6 is discharged into the cultivated land. The collected weeds can be put into the collection box 6 and crushed by multiple crushing blades 18. Then, control the two sealing plates 8 to close the feed hopper 7 downwards and control the sealing plate 19 to close the discharge outlet 14. This allows the crushed fresh weeds to be fermented inside the collection box 6, which facilitates the subsequent preparation of biomass pellet fertilizer from the fermented fresh weeds. This fertilizer is then discharged into the cultivated land to improve the fertility and nutrients of the cultivated land and promote better growth of crops.

[0048] As the multiple rake teeth 13 rotate upwards, throwing the collected weeds into the collection box 6, after the rake teeth 13 rotate to the top of the collection box 6, multiple second connecting shafts 29 can be controlled to rotate multiple cutting blades 15 together, so that the sharp parts of the multiple cutting blades 15 come into contact with the weeds. With the help of the second lead screw 27, the multiple cutting blades 15 move together towards the weeds, which can pre-cut the collected weeds, reduce the time for the multiple crushing blades 18 to crush the weeds, and improve the efficiency of crushing the weeds. Furthermore, when it is necessary to dry the dug-out weeds before recycling them, the weeds collected at the top of the multiple rake teeth 13 can be directly cut by the multiple cutting blades 15, which can prevent the weeds from taking root and growing again on the cultivated land surface, accelerate the withering of the weeds on the cultivated land surface, and facilitate the subsequent drying of the weeds.

[0049] If the soil in the cultivated land is relatively damp, resulting in a lot of soil adhering to the roots of the dug-out weeds, the second rotating rod 26 can be controlled to drive the multiple cutting blades 15 to rotate downwards by 90 degrees, so that the multiple cutting blades 15 are located on the back of the multiple rake teeth 13 in an upward vertical position. After a sufficient amount of weeds are collected at the top of the multiple rake teeth 13, the second rotating rod 26 can be controlled to drive the multiple cutting blades 15 to rotate upwards from the gaps between the multiple rake teeth 13, pushing the weeds that were originally located at the top of the multiple rake teeth 13. The second rotating rod 26 can be controlled to drive the multiple cutting blades 15 to repeat the rotation and reset operation multiple times, so that the multiple cutting blades 15 can vibrate and remove the soil attached to the roots of the weeds during the repeated rotation and reset process, thereby reducing the adverse effects on subsequent weed collection or crushing and improving the efficiency of weed collection and crushing.

[0050] If, during the process of removing weeds in farmland, there are dead tree branches or numerous stones present in the farmland, refer to... Figure 3As shown, the controllable moving rod 23 drives multiple rake teeth 13 and other components to move upward to their maximum height. Then, the first rotating rod 12 and its lower components rotate upward until the top of the fixed frame 1 is horizontal. With the help of two sliders 20, the components move towards the rotating wheel 4 inside the chute 10 until the two sliders 20 reach the leftmost end of the chute 10. Finally, the first rotating rod 12 rotates downward to reset, placing the multiple rake teeth 13 at the front of the entire device. This allows the device to preferentially contact obstacles in the farmland during forward movement, facilitating the collection of dead branches or stones from the farmland onto the top of the rake teeth 13. After collecting enough dead branches or stones from the top of the multiple rake teeth 13, the dead branches or stones are pressed and fixed by multiple downward-moving cutting blades 15. Then, the first rotating rod 12 and the multiple rake teeth 13 are controlled to rotate upward together to a horizontal state. Then, the two sliders 20 move towards the collection box 6 inside the chute 10. After the two sliders 20 move to the designated position, the first rotating rod 12 is controlled to drive the multiple rake teeth 13 to rotate upward, transferring the collected dead branches and stones into the collection bag between the two sealing plates 8. This achieves the effect of automatically collecting debris in the cultivated land and reducing the impact of debris on subsequent crop sowing.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A mobile weeding and fertilizing device, comprising a fixed frame (1), characterized in that, The bottom of the fixed frame (1) is equipped with multiple fixed columns (2), two of which are rotatably mounted with movable wheels (9) via a first rotating shaft at their bottom ends, and two rotating wheels (4) are rotatably mounted with the bottom ends of the other two fixed columns (2) via a second rotating shaft (3). Multiple weeding plates (5) are installed on the outer walls of the two rotating wheels (4) via bolt threads. A collection box (6) is installed at one end of the fixed frame (1) near the two movable wheels (9). A crushing mechanism for cutting weeds is installed inside the collection box (6). A transfer mechanism for transferring weeds to the collection box (6) is set between the two movable wheels (9) and the rotating wheels (4) of the fixed frame (1). The top of the collection box (6) is equipped with a feeding hopper (7), and two sealing plates (8) are symmetrically installed on the top of the feeding hopper (7). Two limiting plates (16) for fixing the collection bag are rotatably installed on the top of the two sealing plates (8). The end of the two limiting plates (16) away from the rotating part and the top of the sealing plate (8) are provided with connecting holes of the same size. The crushing mechanism includes a drive shaft (17), both ends of which are rotatably installed inside the collection box (6), and multiple crushing blades (18) are installed on the outer wall of the drive shaft (17). The transfer mechanism includes two slides (10) opened on the top of the fixed frame (1), and a slider (20) is installed inside the two slides (10), and a fixing block (11) is installed at the top of the two sliders (20). The two fixed blocks (11) are connected to a first rotating rod (12) at their close ends via a third rotating shaft. A moving rod (23) is provided below the first rotating rod (12), and multiple rake teeth (13) are installed at the bottom end of the moving rod (23). The bottom ends of the first rotating rod (12) are respectively equipped with a first lead screw (21) and a first slide rod (22), and the bottom ends of the first lead screw (21) and the first slide rod (22) pass through the moving rod (23). Two vertical plates (24) are symmetrically installed on the outer wall of the moving rod (23) away from the multiple rake teeth (13), and grooves (25) are opened on the outer wall of the two vertical plates (24) that are close to each other. The two grooves (25) are respectively equipped with a second lead screw (27) and a second slide bar (30). The outer walls of the second lead screw (27) and the second slide bar (30) are each equipped with a moving block (28). The two moving blocks (28) are connected to a second rotating rod (26) through a first connecting shaft at their close ends. The second rotating rod (26) has multiple cutting blades (15) mounted on its outer wall near the multiple rake teeth (13) via multiple second connecting shafts (29). The multiple cutting blades (15) are respectively located in the gaps between the multiple rake teeth (13).

2. The mobile weeding and fertilizing device according to claim 1, characterized in that, The bottom of the collection box (6) is provided with an outlet (14), and a sealing plate (19) for sealing the outlet (14) is installed at the bottom of the collection box (6).

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