Weeding device for grain planting

Abstract

The invention relates to the technical field of weeding equipment, in particular to a weeding device for grain planting, which comprises a remote control car, a mounting plate is fixedly arranged at the rear end of the remote control car, an air pump is arranged in the mounting plate, and the weeding device further comprises a hose fixedly mounted on the mounting plate and connected with the air pump; the multiple mounting sleeves are arranged, and the multiple mounting sleeves are linearly mounted on the outer side of the hose; the pulse type weeding mechanism is arranged at the tail end of the hose, communicates with the hose and can remove weeds during moving; the grass chopping assembly is arranged at the rear end of the pulse type weeding mechanism and can conduct chopping treatment on weeds, according to the weeding device for grain planting and the pulse type weeding mechanism, the gas pulse principle is utilized, gas is periodically sprayed out through the gas spraying pipe, the weeds can be effectively pulled out, the air permeability of paddy field soil can be improved, and healthy growth of rice roots can be promoted.

Description

Technical Field

[0001] The invention relates to the technical field of weeding equipment, in particular to a weeding device for grain planting. Background Art

[0002] The term "cereals" covers a wide range of crops, of which rice, wheat, millet and soybeans are the most well-known, but also includes a variety of other grains that rely primarily on plant seeds and fruits for reproduction and production.

[0003] During the cultivation of rice, the paddy field environment provides a fertile breeding ground for various weeds. These weeds not only compete with rice for nutrients, water and light, but may also become hosts for diseases and pests, seriously affecting the normal growth and yield of rice. Therefore, weeding operations have become an indispensable part of the rice planting process.

[0004] Currently, chain weeding has been widely used in rice cultivation. This method uses a trolley or boat as a power source, and a row of chains is connected to the rear end. Driven by the trolley or boat, the chain moves in the paddy field to effectively remove weeds. In the early stage of rice growth, the weeds have just sprouted, and their roots are relatively simple and attached to the soil surface. At this time, the hook at the bottom of the chain can easily hook up the roots of the weeds, and the rice is usually not affected by the chain because it has deep roots.

[0005] However, the chain weeding method also has some limitations. As the weeds grow, their root systems become increasingly complex and penetrate deep into the soil, and the effect of chain weeding will gradually weaken. At this time, the weeding equipment needs to be operated more frequently, usually once a week, which undoubtedly increases the labor intensity of farmers. In addition, although the root system of rice is deep and not easily affected by the chain, in actual operation, if the chain design is not reasonable, such as the chain is too heavy or the hook is too sharp, causing its end to be embedded too deeply in the soil, it may still cause mechanical damage to the rice. This damage will not only affect the normal growth of rice, but also reduce its yield and quality. For this reason, we propose a weeding device for grain planting. Summary of the invention

[0006] In order to solve the above technical problems, the embodiment of the present application provides a weeding device for grain planting, including a remote control vehicle, a mounting plate is fixedly provided at the rear end of the remote control vehicle, an air pump is provided in the mounting plate, and further includes:

[0007] A hose, fixedly mounted on the mounting plate and connected to the air pump;

[0008] A mounting sleeve, wherein a plurality of mounting sleeves are provided and the plurality of mounting sleeves are linearly mounted on the outside of the hose;

[0009] A pulse weeding mechanism, which is disposed at the end of the hose and is in communication with the hose, and is capable of removing weeds while moving;

[0010] The grass-chopping component is arranged at the rear end of the pulse weeding mechanism and can chop the weeds.

[0011] In some embodiments, a plurality of fixed blocks are fixedly provided on the outside of the hose, a card slot is opened on the fixed block, the installation sleeve is arranged on the outside of the fixed block, a cavity is provided in the installation sleeve, a card block is slidably arranged in the cavity, a positioning spring is arranged on the top of the card block, and the two ends of the positioning spring are respectively connected to the card block and the top of the cavity, a pull rod is fixedly provided on the card block, and a pull ring is provided on the end of the pull rod.

[0012] In some embodiments, the pulse weeding mechanism includes a shell fixedly connected to the end of a hose, a plurality of weeding hooks are fixedly arranged on the other side of the shell, an air jet is fixedly connected to the weeding hook, the nozzle of the air jet faces downward, and a connecting pipe is arranged at the front end of the weeding hook, the connecting pipe is connected to the shell, and the front section where the weeding hook is connected to the air jet is hollow inside, so that the gas in the shell can be ejected from the air jet through the front section of the weeding hook, and a gas storage assembly is also arranged in the shell, which can enable the gas to enter the air jet in a pulsed manner.

[0013] In some embodiments, the connecting tube is a bellows.

[0014] In some embodiments, the gas storage assembly includes a slide plate slidably arranged in a shell, the slide plate divides the interior of the shell into a gas storage chamber and a release chamber, a telescopic rod is arranged in the shell, the end of the telescopic rod is fixedly connected to the slide plate, a return spring is arranged on the outside of the telescopic rod, and the two ends of the return spring are respectively fixedly connected to the inner wall of the shell and the slide plate, and one-way friction parts are arranged on both sides of the slide plate. When the slide plate moves toward the release chamber, it rubs against the side wall of the shell. A release port is opened in the middle of the slide plate, and when the slide plate moves to the release chamber, the release port can be opened.

[0015] In some embodiments, sealing plates are slidably provided on both sides of the middle part of the skateboard, and magnetic strips that attract each other are provided at the ends of the two sealing plates. An elastic rope is fixedly connected to the side wall of the sealing plate, and one end of the elastic rope slides through the skateboard and is fixedly connected to the inside of the shell.

[0016] In some embodiments, the one-way friction member includes rollers rotatably arranged on both sides of the skateboard, and the rollers are arranged on both sides of the skateboard through one-way bearings. When the skateboard moves from the air storage chamber to the release chamber, the rollers will not rotate and rub against the inner wall of the shell.

[0017] In some embodiments, the grass cutting component includes a V-shaped plate arranged on the rear side of the weeding hook, and the V-shaped plates are provided in multiple numbers and are respectively located in the middle of two adjacent weeding hooks. Cutting shafts are rotatably provided on both sides of the interior of the V-shaped plate, and a blade is provided on the outside of the cutting shaft. A transmission structure is provided on the top of the V-shaped plate, and the cutting shaft can be driven to rotate by the transmission structure.

[0018] In some embodiments, the transmission structure includes two transmission gears respectively arranged on the outside of the cutting shaft, and the two transmission gears are meshed with each other. A torsion spring 1 is arranged on the outside of one cutting shaft, and the two ends of the torsion spring 1 are respectively fixedly connected to the cutting shaft and the V-shaped plate, and a reel 1 is arranged on the outside of the other cutting shaft, and a pull rope is wound on the outside of the reel 1. A reel 2 is rotatably arranged on the outside of the shell, and a protective cover is provided on the outside of the reel 2, and the end of the pull rope is fixedly connected to the reel 2. A torsion spring 2 is arranged on the outside of the rotating shaft of the reel 2, and the two ends of the torsion spring 2 are respectively fixedly connected to the rotating shaft of the reel 2 and the side wall of the shell, and a connecting rope is arranged at the connection between the weeding hook and the connecting pipe, and the end of the connecting rope is fixedly arranged on the reel 2.

[0019] In some embodiments, a solar panel is disposed on the top of the remote control vehicle.

[0020] The present invention has at least the following beneficial effects:

[0021] 1. Improved intelligence and flexibility: The design of the remote-controlled vehicle realizes remote control and automation of weeding operations, reduces labor costs and improves work efficiency; the design of the hose and the mounting sleeve on it allows the depth of the hose to be flexibly adjusted according to the different growth stages of the rice, thereby ensuring the weeding effect while minimizing the potential damage to the rice seedlings;

[0022] 2. Innovative weeding mechanism: The pulse weeding mechanism uses the gas pulse principle to periodically spray gas through the jet tube, which can not only effectively remove weeds, but also improve the aeration of paddy field soil and promote the healthy growth of rice roots.

[0023] 3. Grass chopping and nutrient circulation: The design of the grass chopping component allows the pulled weeds to be chopped up in time and integrated into the soil as nutrients, which promotes the natural circulation of soil fertility, reduces the use of chemical fertilizers, and is conducive to the sustainable development of agriculture. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0026] Figure 3 For the present invention Figure 2Schematic diagram of local structure;

[0027] Figure 4 It is a structural schematic diagram of the hose of the present invention;

[0028] Figure 5 This is a schematic diagram of the cross-sectional structure of the installation sleeve of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the pulse weeding mechanism of the present invention;

[0030] Figure 7 For the present invention Figure 6 Schematic diagram of partial cross-section structure;

[0031] Figure 8 This is a schematic diagram of the internal structure of the housing of the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the slide plate of the present invention;

[0033] Fig.10 This is a schematic diagram of the structure of the weeding hook of the present invention;

[0034] Fig.11 This is a schematic diagram of the structure of the weeding hook of the present invention;

[0035] Fig.12 This is a schematic diagram of the cross-sectional structure of the weeding hook of the present invention;

[0036] Fig.13 It is a schematic diagram of the structure of the V-shaped plate of the present invention.

[0037] In the figure: 1-mounting plate; 2-hose; 3-mounting sleeve; 4-pulse weeding mechanism; 41-housing; 42-weeding hook; 43-jet pipe; 44-connecting pipe; 5-grass cutting assembly; 51-V-plate; 52-cutting shaft; 6-gas storage assembly; 61-slide plate; 62-reset spring; 63-release port; 64-blocking plate; 65-elastic rope; 66-drum; 7-transmission structure; 71-transmission gear; 72-torsion spring one; 73-reel one; 74-pull rope; 75-reel two; 76-torsion spring two; 77-connecting rope; 8-fixing block; 9-slot; 10-block; 11-positioning spring; 12-pull rod. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figure 1-Figure 13 The present invention provides a technical solution: a weeding device for grain planting, comprising a remote control vehicle, a mounting plate 1 is fixedly arranged at the rear end of the remote control vehicle, an air pump is arranged in the mounting plate 1, and a hose 2 is fixedly installed on the mounting plate 1, the hose 2 is connected to the air pump, and gas can be transported into the hose 2 when the air pump is started, and a plurality of mounting sleeves 3 are fixedly installed on the outside of the hose 2, and the depth of the entire hose 2 sinking into the paddy field can be adjusted by adjusting the weight of the mounting sleeve 3, so that the remote control vehicle is suitable for weeding rice at different growth stages, and the damage to the rice seedlings can be reduced as much as possible while meeting the weeding needs:

[0040] The end of the hose 2 is provided with a pulse weeding mechanism 4 connected to the hose 2, which can remove weeds while moving. The rear end of the pulse weeding mechanism 4 is provided with a grass chopping component 5, which can chop the weeds after pulling out and then integrate them into the soil to become nutrients.

[0041] A plurality of fixing blocks 8 are fixedly arranged on the outside of the hose 2, and a card slot 9 is opened on the fixing block 8. The mounting sleeve 3 is sleeved on the outside of the fixing block 8, and a cavity is arranged inside the mounting sleeve 3. A card block 10 is slidably arranged in the cavity, and a positioning spring 11 is arranged on the top of the card block 10. The two ends of the positioning spring 11 are respectively connected to the card block 10 and the top of the cavity. A pull rod 12 is fixedly arranged on the card block 10, and a pull ring is arranged at the end of the pull rod 12;

[0042] Pulling the pull ring can drive the pull rod 12 to move, and the pull rod 12 drives the block 10 to move and compress the positioning spring 11. When the block 10 moves out of the slot 9, the installation sleeve 3 can be removed from the outside of the fixed block 8. Similarly, during installation, the installation sleeve 3 can be installed on the outside of the fixed block 8 through the plug-in cooperation between the block 10 and the slot 9. Through the replaceable design of the installation sleeve 3, the weight hanging on the outside of the hose 2 can be adjusted, and then the depth of the pulse weeding mechanism 4 at the rear end sunk into the soil can be adjusted, which can achieve weeding while reducing damage to the rice seedlings.

[0043] The pulse weeding mechanism 4 includes a shell 41 fixedly connected to the end of the hose 2, and a plurality of weeding hooks 42 are fixedly arranged on the other side of the shell 41. An air jet 43 is fixedly connected to the weeding hook 42, and the nozzle of the air jet 43 faces downward. A connecting pipe 44 is arranged at the front end of the weeding hook 42, and the connecting pipe 44 is connected to the shell 41. The connecting pipe 44 is a corrugated pipe, and the front section where the weeding hook 42 is connected to the air jet 43 is hollow, so that the gas in the shell 41 can be ejected from the air jet 43 through the front section of the weeding hook 42. A gas storage component 6 is also arranged in the shell 41, which can make the gas enter the air jet 43 in a pulsed manner.

[0044] The gas can be periodically supplied to the air jet pipe 43, so that the air jet pipe 43 periodically sprays gas downward, that is, toward the soil of the paddy field. When the gas is sprayed, since the root system of the weeds is shallow, the gas can blow away the soil on the surface and mix it in the water, so that the weeds are pulled out in this way. Secondly, some weed roots are relatively tenacious, and the gas can also blow away the soil around them. The subsequent weeding hook 42 can sweep the weeds when it moves. This method can not only quickly and effectively remove weeds, but also the soil mixed in the water after weeding will be deposited again and cover the weeds, blocking their photosynthesis and killing them. Secondly, the use of gas has another benefit, that is, increasing the air permeability of the soil in the paddy field and increasing the soil oxygen content. This can not only oxidize toxic and harmful substances in the soil such as methane and hydrogen sulfide, and significantly reduce the content, but also increase the soil temperature, creating a more favorable growth environment for the rice root system.

[0045] The gas storage component 6 includes a slide plate 61 slidably arranged in the shell 41, and the slide plate 61 divides the interior of the shell 41 into a gas storage chamber and a release chamber. A telescopic rod is arranged in the shell 41, and the end of the telescopic rod is fixedly connected to the slide plate 61. A return spring 62 is arranged on the outside of the telescopic rod. The two ends of the return spring 62 are respectively fixedly connected to the inner wall of the shell 41 and the slide plate 61. One-way friction parts are arranged on both sides of the slide plate 61. When the slide plate 61 moves toward the release chamber, it has friction with the side wall of the shell 41. A release port 63 is opened in the middle of the slide plate 61. When the slide plate 61 moves to the release chamber, the release port 63 can be opened.

[0046] Sealing plates 64 are slidably provided on both sides of the middle of the slide plate 61, and magnetic strips that attract each other are provided at the ends of the two sealing plates 64. Elastic ropes 65 are fixedly connected to the side walls of the sealing plates 64. One end of the elastic rope 65 slides through the slide plate 61 and is fixedly connected to the inside of the shell 41. When the slide plate 61 moves, it will drive the sealing plate 64 to move, and the sealing plate 64 pulls the elastic rope 65 to move and deform it. When the slide plate 61 continues to move, the restoring force of the elastic rope 65 can overcome the attraction between the magnetic strips, thereby driving the sealing plate 64 to move and open the release port 63. At this time, the gas in the air storage chamber enters the release chamber, and then enters the injection pipe 43 through the connecting pipe 44 and the weeding hook 42.

[0047] The one-way friction member includes rollers 66 rotatably arranged on both sides of the slide plate 61. The rollers 66 are arranged on both sides of the slide plate 61 through one-way bearings. When the slide plate 61 moves from the air storage chamber to the release chamber, the rollers 66 do not rotate and rub against the inner wall of the shell 41. At this time, as the air pump continues to deliver gas, the air pressure in the air storage chamber increases. When the air pressure in the air storage chamber is large enough, it can overcome the friction between the rollers 66 and the inner wall of the shell 41, thereby moving the slide plate 61 to open the release port 63, so that the air flow is ejected from the air injection pipe 43. When the slide plate 61 is reset, the two sides of the slide plate 61 and the inner wall of the shell 41 are in rolling friction, and can be reset smoothly.

[0048] The grass cutting component 5 includes a V-shaped plate 51 arranged on the rear side of the weeding hook 42. There are multiple V-shaped plates 51 and they are respectively located in the middle of two adjacent weeding hooks 42. Cutting shafts 52 are rotatably arranged on both sides of the inside of the V-shaped plate 51. A blade is arranged on the outside of the cutting shaft 52. A transmission structure 7 is arranged on the top of the V-shaped plate 51, and the cutting shaft 52 can be driven to rotate through the transmission structure 7.

[0049] The transmission structure 7 includes two transmission gears 71 respectively arranged on the outside of the cutting shaft 52, and the two transmission gears 71 are meshed with each other. A torsion spring 1 72 is arranged on the outside of one cutting shaft 52, and the two ends of the torsion spring 1 72 are respectively fixedly connected to the cutting shaft 52 and the V-shaped plate 51. A reel 1 73 is arranged on the outside of the other cutting shaft 52, and a pull rope 74 is wound around the outside of the reel 1 73. A reel 2 75 is rotatably arranged on the outside of the shell 41, and a protective cover is arranged on the outside of the reel 2 75. The end of the pull rope 74 is fixedly connected to the reel 2 75. A torsion spring 2 76 is arranged on the outside of the rotating shaft of the reel 2 75, and the two ends of the torsion spring 2 76 are respectively fixedly connected to the rotating shaft of the reel 2 75 and the side wall of the shell 41. A connecting rope 77 is arranged at the connection between the weeding hook 42 and the connecting pipe 44, and the end of the connecting rope 77 is fixedly arranged on the reel 2 75.

[0050] When the gas is ejected from the air jet pipe 43, the gas will bring a certain recoil force while removing the weeds, thereby driving the weeding hook 42 to rise. When the weeding hook 42 falls again, its hook will be inserted into the soil under its own weight. In conjunction with the movement of the remote control car, the movement trajectory of the weeding hook 42 in the paddy field is wavy. When the weeding hook 42 is hooked, the weeds can be hooked out. When it rises, it can pass over the weeds that have been hooked. Then, when the weeding hook 42 falls again, due to the V-shaped plate 51 located at In the gap between the weeding hooks 42, as the weeding hooks 42 move, the weeds will be moved parallel to the main body of the weeding hooks 42. At this time, the pulled weeds will be stuck in the V-shaped plate 51. When the weeding hooks 42 rise, the pull rope 74 will be wound up by the reel 2 75. At the same time, the reel 1 73 will unwind the pull rope 74, thereby driving the cutting shaft 52 to rotate and chop the weeds. Similarly, when the weeding hooks 42 descend, under the action of the torsion springs 1 72 and 2 76, the cutting shaft 52 will also rotate.

[0051] In summary, the device drives the hose 2 to move in the paddy field through the remote control vehicle, removes weeds through the weeding hook 42 and the air jet pipe 43, and the removed weeds can also be chopped, which can meet the need for weed cleaning and reduce damage to rice seedlings.

[0052] Embodiment 2: Embodiment 2 has the same main structure as Embodiment 1, except that a solar panel is provided on the top of the remote-controlled car in Embodiment 2, which can use photovoltaic power to save energy.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A weeding device for grain planting, comprising a remote-controlled vehicle, a mounting plate (1) being fixedly provided at the rear end of the remote-controlled vehicle, characterized in that: The mounting plate (1) is provided with an air pump and further comprises: A hose (2) is fixedly mounted on the mounting plate (1) and connected to the air pump; A mounting sleeve (3), wherein a plurality of mounting sleeves (3) are provided and the plurality of mounting sleeves (3) are linearly mounted on the outside of the hose (2); A pulse weeding mechanism (4) is arranged at the end of the hose (2) and is connected to the hose (2), and is capable of removing weeds while moving; The weed chopping component (5) is arranged at the rear end of the pulse weeding mechanism (4) and is capable of chopping weeds.

2. The weeding device for grain planting according to claim 1, characterized in that: A plurality of fixing blocks (8) are fixedly arranged on the outside of the hose (2), and a card slot (9) is opened on the fixing block (8). The installation sleeve (3) is sleeved on the outside of the fixing block (8), and a cavity is arranged inside the installation sleeve (3), and a card block (10) is slidably arranged in the cavity. A positioning spring (11) is arranged on the top of the card block (10), and the two ends of the positioning spring (11) are respectively connected to the card block (10) and the top of the cavity. A pull rod (12) is fixedly arranged on the card block (10), and a pull ring is arranged at the end of the pull rod (12).

3. The weeding device for grain planting according to claim 2, characterized in that: The pulse weeding mechanism (4) comprises a shell (41) fixedly connected to the end of a hose (2), a plurality of weeding hooks (42) fixedly arranged on the other side of the shell (41), an air jet (43) fixedly connected to the weeding hook (42), the nozzle of the air jet (43) facing downward, and a connecting pipe (44) arranged at the front end of the weeding hook (42), the connecting pipe (44) communicating with the shell (41), and the front section where the weeding hook (42) and the air jet (43) are connected is hollow inside, so that the gas in the shell (41) can be ejected from the air jet (43) via the front section of the weeding hook (42), and a gas storage assembly (6) is also arranged in the shell (41), so that the gas can enter the air jet (43) in a pulsed manner.

4. The weeding device for grain planting according to claim 3, characterized in that: The connecting pipe (44) is a corrugated pipe.

5. The weeding device for grain planting according to claim 4, characterized in that: The gas storage component (6) comprises a slide plate (61) slidably arranged in the shell (41), the slide plate (61) divides the inside of the shell (41) into a gas storage chamber and a release chamber, a telescopic rod is arranged in the shell (41), the end of the telescopic rod is fixedly connected to the slide plate (61), a return spring (62) is arranged on the outside of the telescopic rod, the two ends of the return spring (62) are respectively fixedly connected to the inner wall of the shell (41) and the slide plate (61), one-way friction parts are arranged on both sides of the slide plate (61), when the slide plate (61) moves toward the release chamber, it rubs against the side wall of the shell (41), a release port (63) is opened in the middle of the slide plate (61), when the slide plate (61) moves to the release chamber, the release port (63) can be opened.

6. The weeding device for grain planting according to claim 5, characterized in that: Sealing plates (64) are slidably arranged on both sides of the middle of the slide plate (61), and the ends of the two sealing plates (64) are provided with magnetic strips that attract each other. The side walls of the sealing plates (64) are fixedly connected with elastic ropes (65), and one end of the elastic rope (65) slides through the slide plate (61) and is fixedly connected to the inside of the shell (41).

7. The weeding device for grain planting according to claim 6, characterized in that: The one-way friction member comprises rollers (66) rotatably arranged on both sides of the slide plate (61). The rollers (66) are arranged on both sides of the slide plate (61) via one-way bearings. When the slide plate (61) moves from the air storage chamber to the release chamber, the rollers (66) do not rotate and rub against the inner wall of the housing (41).

8. The weeding device for grain planting according to claim 7, characterized in that: The grass-chopping component (5) comprises a V-shaped plate (51) arranged at the rear side of the weeding hook (42), wherein the V-shaped plate (51) is provided with a plurality of plates and is respectively located at the middle of two adjacent weeding hooks (42), and a cutting shaft (52) is rotatably arranged on both sides of the interior of the V-shaped plate (51), and a blade is arranged on the outside of the cutting shaft (52), and a transmission structure (7) is arranged on the top of the V-shaped plate (51), and the cutting shaft (52) can be driven to rotate by the transmission structure (7).

9. The weeding device for grain planting according to claim 8, characterized in that: The transmission structure (7) comprises two transmission gears (71) respectively arranged on the outside of the cutting shaft (52), the two transmission gears (71) meshing with each other, a torsion spring (72) is arranged on the outside of one of the cutting shafts (52), the two ends of the torsion spring (72) are respectively fixedly connected to the cutting shaft (52) and the V-shaped plate (51), a reel (73) is arranged on the outside of the other cutting shaft (52), a pull rope (74) is wound on the outside of the reel (73), and the outer side of the housing (41) is rotated A second reel (75) is provided, a protective cover is provided on the outside of the second reel (75), the end of the pull rope (74) is fixedly connected to the second reel (75), a second torsion spring (76) is provided on the outside of the rotating shaft of the second reel (75), the two ends of the second torsion spring (76) are respectively fixedly connected to the rotating shaft of the second reel (75) and the side wall of the housing (41), and a connecting rope (77) is provided at the connection between the weeding hook (42) and the connecting pipe (44), and the end of the connecting rope (77) is fixedly arranged on the second reel (75).

10. The weeding device for grain planting according to claim 1, characterized in that: A solar panel is provided on the top of the remote control car.

Images