A planting machine

Abstract

This invention discloses a planting machine, belonging to the field of planting technology. It includes: a walking mechanism; a housing with a horizontally slidable slider; a guide rod vertically slidably connected to the housing, the guide rod having an annular guide groove for guiding one end of the slider, the annular guide groove including two staggered transverse inclined sections and two longitudinal sections; a duckbill seeder communicating with the interior of the housing; a transmission mechanism drivingly connecting the slider and the duckbill seeder; and a first driving component. During sowing, seeds placed in the housing fall into the duckbill seeder. The walking mechanism moves the duckbill seeder above the sowing position. When the first driving component drives the housing downwards, the duckbill seeder on the housing only performs the planting operation when the guide rod contacts the ground, planting the seeds at the same depth as the soil surface. This reduces the problem of seeds being buried too shallowly or too deeply, affecting the survival rate and improving the survival rate of seeds or seedlings.

Description

Technical Field

[0001] This invention relates to the field of planting technology, and in particular to a planting machine. Background Technology

[0002] In the context of agricultural and rural modernization, automated planting technologies have rapidly developed to improve planting efficiency and reduce manual labor. Among these, the duckbill seeder is particularly suitable for automated sowing and is widely used in automated planting machines. The duckbill seeder forms planting holes by embedding itself in the soil; when opened, the seeds fall into the holes, and when pulled out, the sowing is complete. However, because the duckbill seeder sows at a uniform height, it can lead to uneven planting depths when encountering soil variations, affecting the survival rate of the seeds. Summary of the Invention

[0003] The purpose of this invention is to provide a planting machine to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows: A planting machine, comprising: a walking mechanism; a box body installed on the walking mechanism, wherein a slider is horizontally slidably mounted on the box body; a guide rod vertically slidably connected to the box body, wherein the guide rod is provided with an annular guide groove for guiding one end of the slider to slide, the annular guide groove including two staggered transverse inclined grooves and two longitudinal grooves, wherein when the box body moves relative to the guide rod and the slider slides in the transverse inclined groove, it can drive the slider to slide horizontally relative to the box body; a duckbill seeder communicating with the inside of the box body, wherein when the slider is at the top of the longitudinal groove, the bottom of the guide rod is lower than the bottom of the duckbill seeder, so as to ensure that in the initial state, when the box body moves downward, the guide rod touches the soil first relative to the duckbill seeder; a transmission mechanism for drivingly connecting the slider and the duckbill seeder, so that when the slider slides horizontally relative to the box body, it drives the duckbill seeder to open and close; and a first driving member installed on the walking mechanism, wherein the first driving member is used to drive the box body to move.

[0005] This technical solution has at least the following beneficial effects: During sowing, the seeds or seedlings to be sown are placed in the box and fall into the duckbill seeder under gravity. The duckbill seeder is moved above the sowing position by the walking mechanism. The first driving component is controlled to drive the box body downward until the guide rod touches the soil first. The box body continues to move downward, and the slider slides in the longitudinal groove until the duckbill seeder is embedded in the soil to form a planting hole. After the slider enters the transverse inclined groove, the guide moves the slider horizontally relative to the box body, thereby opening the duckbill seeder through the transmission mechanism and allowing the seeds or seedlings to fall into the planting hole, thus achieving sowing. When the box body is lifted upward, the slider slides in another longitudinal groove, thereby lifting the duckbill seeder until it is detached from the soil. When the slider enters another transverse inclined groove, the guide moves the slider horizontally relative to the box body, thereby closing the duckbill seeder through the transmission mechanism to facilitate the next sowing operation. This technical solution can adapt to different soil heights for planting, ensuring that seeds or seedlings are at the same distance from the soil surface each time they are planted. This guarantees the uniformity of sowing depth when sowing seeds, seedlings, or crops in batches, reduces the problem of seeds or seedlings being buried too shallowly or too deeply, which affects the survival rate, and improves the survival rate of seeds or seedlings.

[0006] As a further improvement to the above technical solution, the duckbill seeder includes a first duckbill plate installed at the bottom of the box and a second duckbill plate rotatably installed at the bottom of the box. The first and second duckbill plates can be closed together. The transmission mechanism includes a transmission plate rotatably installed on the box. A first hook rod and a second hook rod are rotatably installed on both sides of the transmission plate, respectively. The end of the first hook rod away from the transmission plate is rotatably installed on the second duckbill plate, and the end of the second hook rod away from the transmission plate is rotatably installed on the slider. When the slider moves horizontally relative to the box, it can push or pull the transmission plate to rotate, thereby pushing or pulling the second duckbill plate to rotate. When the second duckbill plate rotates relative to the first duckbill plate, the transmission plate and the second hook rod convert the horizontal movement of the slider into rotational movement, realizing the opening and closing of the duckbill seeder. At the same time, the transmission plate indirectly connects the second duckbill plate and the slider, which can improve the rotational stability of the second duckbill plate and the opening and closing stability of the duckbill seeder.

[0007] As a further improvement to the above technical solution, the walking mechanism is also equipped with a soil loosening mechanism. The soil loosening mechanism includes a support rod mounted on the walking mechanism, a soil loosening wheel rotatably mounted on the support rod, and a second driving component for driving the soil loosening wheel to rotate. The soil can be loosened by the soil loosening wheel in the soil loosening mechanism, facilitating the insertion of the duckbill seeder and also benefiting the survival of seeds or seedlings.

[0008] As a further improvement to the above technical solution, the support rod is rotatably mounted on the traveling mechanism. The traveling mechanism is rotatably mounted with a first rocker arm and a third driving component for driving the first rocker arm to swing. A second rocker arm is rotatably mounted on the end of the first rocker arm away from the third driving component. The end of the second rocker arm away from the first rocker arm is rotatably connected to the end of the support rod away from the loosening wheel. The third driving component can drive the first rocker arm to rotate, thereby driving the second rocker arm to swing, pushing the support rod to swing, realizing intermittent loosening operation of the loosening wheel, which is beneficial for energy saving and intermittent rest of the loosening wheel, and improving the service life of the loosening wheel.

[0009] As a further improvement to the above technical solution, the walking mechanism is rotatably mounted with a support shaft, the support shaft is mounted with a third rocker arm, a fourth rocker arm is rotatably mounted at the end of the third rocker arm away from the support shaft, a slide rod is rotatably mounted at the end of the fourth rocker arm away from the third rocker arm, a loosening rake is mounted at the end of the slide rod away from the third rocker arm, a piston block is slidably connected to the slide rod, and the piston block is rotatably connected to the walking mechanism. A chain mechanism is provided between the third driving member and the support shaft, and the third driving member drives the support shaft to rotate through the chain mechanism. When the third driving member drives the first rocker arm to swing, it also drives the third and fourth rocker arms to swing through the support shaft, pushing the slide rod to swing. Under the constraint of the piston block, the loosening rake performs the soil-raking action, thereby using the loosening rake and the loosening wheel to loosen the soil to different degrees, improving the soil loosening effect.

[0010] As a further improvement to the above technical solution, the walking mechanism is also equipped with a distribution mechanism. The distribution mechanism includes a distribution turntable rotatably mounted on the walking mechanism. The distribution turntable has multiple through holes around its circumference. A limiting cylinder is installed on the top of the distribution turntable corresponding to the through holes. The walking mechanism is also equipped with a limiting plate. The limiting plate has a drop hole that communicates with one of the through holes. The drop hole is connected to the interior of the housing. The walking mechanism is also equipped with a fourth driving component for driving the distribution turntable to rotate. The fourth driving component can drive the distribution plate to rotate. When the through hole in the distribution plate corresponds to the drop hole, the seeds or seedlings in the limiting cylinder corresponding to that through hole can fall into the housing and enter the duckbill seeder for sowing, realizing batch seed or seedling sowing operations.

[0011] As a further improvement to the above technical solution, the fourth driving component includes a motor installed in the walking mechanism. A lever is installed at the output end of the motor. Multiple pins, corresponding to the number of limiting cylinders, are evenly arranged around the outer circumference of the distribution turntable. A full rotation of the lever moves one pin to the position of an adjacent pin. By having the motor drive the lever to rotate, and the lever pushing the pins, the distribution turntable can achieve intermittent movement. During pauses, this ensures that the seeds or seedlings in the limiting cylinders fall into the drop holes and into the housing. During movement, it also prevents damage to the seeds or seedlings caused by relative movement between the distribution turntable and the limiting disc, thus ensuring the proper distribution of seeds or seedlings.

[0012] As a further improvement to the above technical solution, the walking mechanism is also equipped with a soil covering mechanism. The soil covering mechanism includes uprights installed on both sides of the walking mechanism. A disc is rotatably mounted on the bottom of each of the two uprights. The circumferential planes of the two discs are inclined towards each other on the side away from the housing, and the outer circumferences of the two discs are curved towards each other. The discs can push the soil on the soil surface, and under the guiding action inside the discs, the soil on both sides is gathered towards the center, thereby achieving the soil covering operation.

[0013] As a further improvement to the above technical solution, the walking mechanism is equipped with a mounting rod. The bottom of the mounting rod is connected to the walking mechanism. A first connecting rod is rotatably mounted on the middle of the mounting rod, and a second connecting rod is rotatably mounted on the mounting rod. The middle of the second connecting rod is rotatably connected to the top of the mounting rod. The walking mechanism is also equipped with a fifth driving component for pushing the second connecting rod. The output end of the fifth driving component is rotatably connected to one end of the second connecting rod. A third connecting rod is rotatably mounted on the end of the second connecting rod away from the fifth driving component. The end of the first connecting rod away from the mounting rod is rotatably connected to the third connecting rod. The third connecting rod is connected to the two uprights away from the second connecting rod. By controlling the fifth driving component to push and pull the second connecting rod, the two discs can be driven to intermittently perform soil covering operations. During soil covering, the discs will experience significant resistance. Through the transmission connection of the mounting rod, the first connecting rod, the second connecting rod, and the third connecting rod, a labor-saving effect can be achieved.

[0014] As a further improvement to the above technical solution, an adjusting plate is installed at the end of the third connecting rod away from the second connecting rod. Fixed plates are installed on both sides of the adjusting plate. A first adjusting groove is formed on each side of the adjusting plate, and a first bolt and a second bolt pass through the first adjusting groove. The first bolt is installed on the fixed plate. The fixed plate has a second adjusting groove for the second bolt to pass through. The fixed plate is installed with the corresponding side of the upright. By loosening the first and second bolts, the installation position and angle of the fixed plate can be adjusted, thereby adjusting the relative position and angle of the two discs to adapt to different soil covering effect requirements. Attached Figure Description

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a schematic diagram of the overall structure from the front of an embodiment of the present invention;

[0017] Figure 2 This is a rear view of the overall structure of an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the soil loosening mechanism in an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the planting mechanism in an embodiment of the present invention;

[0020] Figure 5 This is an exploded structural diagram of the planting mechanism in an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the distribution mechanism in an embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of the soil covering mechanism in an embodiment of the present invention.

[0023] 100. Walking mechanism; 110. Frame; 200. Planting mechanism; 210. Box body; 211. Guide rod; 212. First long plate; 213. Second long plate; 214. Outer shell; 215. Inner plate; 216. Slider; 217. Annular guide groove; 218. Lateral inclined groove; 219. Longitudinal groove; 220. Duckbill seeder; 221. First duckbill blade; 222. Second duckbill blade; 230. First driving component; 240. Transmission mechanism; 241. Transmission plate; 242. First hook rod; 243. Second hook rod; 300. Soil loosening mechanism; 310. Support rod; 311. Soil loosening wheel; 312. Second driving component; 313. Third driving component; 314. First rocker arm; 315. Second rocker arm; 320. Third rocker arm 321. Fourth rocker arm; 322. Support shaft; 323. Slide rod; 324. Piston block; 325. Loosening rake; 326. Chain mechanism; 400. Distribution mechanism; 410. Distribution turntable; 411. Through hole; 412. Limiting cylinder; 413. Limiting disc; 414. Drop hole; 420. Fourth driving component; 421. Motor; 422. Lever; 423. Lever; 500. Soil covering mechanism; 510. Upright pole; 520. Disc; 530. Mounting rod; 531. First connecting rod; 533. Second connecting rod; 534. Fifth driving component; 535. Third connecting rod; 540. Adjusting plate; 541. Fixing plate; 542. First bolt; 543. First adjusting groove; 544. Second adjusting groove; 545. Second bolt. Detailed Implementation

[0024] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0026] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0028] Reference Figure 1-2 A planting machine includes a walking mechanism 100, a planting mechanism 200, a soil loosening mechanism 300, a distributing mechanism 400, and a soil covering mechanism 500. The walking mechanism 100 includes a frame 110 and four tires mounted on the frame 110, with the front tires larger than the rear tires. A drive assembly, which can be an electric motor or an engine, is also mounted on the frame 110 to drive the wheels and move the frame 110. An Ackermann steering mechanism is also mounted on the front of the frame 110 to enable steering. It is understood that the structures and components of the walking mechanism 100 are prior art and will not be described in detail here. The soil loosening mechanism 300 is mounted at the front end of the frame 110 in the direction of movement, the soil covering mechanism 500 is mounted at the rear end of the frame 110 in the direction of movement, and the planting mechanism 200 and the distributing mechanism 400 are both mounted in the middle of the frame 110, with the distributing mechanism 400 positioned above the planting mechanism 200. During the movement of the walking mechanism 100, the soil loosening mechanism 300 can loosen the soil, the distributing mechanism 400 distributes the seeds into the planting mechanism 200 in sequence, the planting mechanism 200 then plants the distributed seeds into the soil, and finally the soil covering mechanism 500 performs the soil covering operation, which can realize integrated planting operation, greatly reduce the intensity of manual labor, improve productivity, and reduce production costs.

[0029] Reference Figure 3The soil loosening mechanism 300 includes a support rod 310 and loosening wheels 311. A pivot pin rotatably passes through the middle of the support rod 310, and both ends of the pivot pin are mounted at the frontmost position of the frame 110. Two loosening wheels 311 are provided, rotatably mounted on both sides of the bottom end of the support rod 310. A second driving component 312 for driving the loosening wheels 311 is mounted at the bottom end of the support rod 310. The second driving component 312 can be a dual-axis motor. A third driving component 313 is also mounted at the front of the frame 110. A first rocker arm 314 is mounted at the output end of the third driving component 313. A second rocker arm 315 is rotatably connected to the end of the first rocker arm 314 away from the third driving component 313 via a pivot pin. The end of the second rocker arm 315 away from the first rocker arm 314 is rotatably connected to the top end of the support rod 310, i.e., the end of the support rod 310 away from the loosening wheels is rotatably connected to the second rocker arm 315. The third drive unit 313 can be a servo motor. The third drive unit 313 controls the first rocker arm 314 to swing back and forth to a preset amplitude. Under the transmission action of the second rocker arm 315, it pushes the top of the support rod to swing, thereby making the loosening wheel 311 swing up and down, so as to realize the intermittent loosening operation of the loosening wheel 311.

[0030] A support shaft 322 is rotatably mounted on the front side of the frame 110. A third rocker arm 320 is mounted in the middle of the support shaft 322. A fourth rocker arm 321 is rotatably mounted on the end of the third rocker arm 320 away from the support shaft 322. A slide rod 323 is rotatably mounted on the end of the fourth rocker arm 321 away from the third rocker arm 320. The top of the slide rod 323 is rotatably connected to the fourth rocker arm 321. A soil loosening rake 325 is mounted on the bottom of the slide rod 323, with the tip of the soil loosening rake 325 facing the frontmost side of the frame 110. A piston block 324 is slidably mounted in the middle of the slide rod 323. The piston block 324 is rotatably connected to the frame 110, thereby allowing the slide rod 323 to swing. A first sprocket is coaxially mounted on the output end of the third drive member 313, and a second sprocket is coaxially mounted on the support shaft 322. The first sprocket and the second sprocket are together fitted with a chain, so that the chain, the first sprocket and the second sprocket constitute a chain mechanism 326. The chain mechanism 326 enables the third drive member 313 to drive the support shaft 322 to rotate, thereby driving the loosening rake 325 to perform soil raking operations under the transmission action of the third rocker arm 320, the fourth rocker arm 321 and the slide bar 323.

[0031] Understandably, when controlling the operation of the third drive component 313, it can simultaneously drive the loosening wheel 311 and the loosening rake 325 to loosen the soil. By reasonably setting the operating speed of the third drive component 313, the loosening wheel 311 and the loosening rake 325 can synchronously loosen the soil at multiple planting positions arranged in a row. After the same planting position is loosened twice by the loosening wheel 311 and the loosening rake 325 in two different ways, the soil can be fully loosened, which is conducive to subsequent seeding and also beneficial to seed survival.

[0032] In other embodiments, the support rod 310 can be directly fixed to the frame 110 with screws, and the wheel part of the loosening wheel 311 is embedded in the soil. During the movement of the frame 110, the loosening wheel 311 continuously loosens the soil. When not in use, the support rod 310 and the loosening wheel 311 can be removed as a whole without affecting the travel mechanism 100 on the road.

[0033] In other embodiments, the front and rear positions of the loosening wheel 311 and its associated mounting transmission structure and the loosening rake 325 and its associated mounting transmission structure can be reversed, so that the soil is first loosened by the loosening rake 325 and then by the loosening wheel 311.

[0034] Reference Figure 4-5 The planting mechanism 200 includes a housing 210, a guide rod 211, a duckbill seeder 220, a transmission mechanism 240, and a first drive component 230. The first drive component 230 is a telescopic cylinder, such as a hydraulic cylinder, pneumatic cylinder, or electric cylinder. The first drive component 230 is vertically positioned with its output end facing downwards. The top of the housing 210 is screwed onto the output end of the first drive component 230. The housing 210 is hollow inside, with openings at both the top and bottom for seeds to pass through.

[0035] The duckbill seeder 220 includes a first duckbill blade 221 and a second duckbill blade 222. The top of the first duckbill blade 221 is fixedly installed at the opening at the bottom of the housing 210, and the second duckbill blade 222 is rotatably installed on one side of the opening at the bottom of the housing 210. The first duckbill blade 221 and the second duckbill blade 222 can cover each other. The bottom ends of the first duckbill blade 221 and the second duckbill blade 222 are both pointed. After the first duckbill blade 221 and the second duckbill blade 222 are covered, a triangular prism-shaped space is formed inside. This triangular prism-shaped space is connected to the inside of the housing 210, so that seeds falling into the housing 210 can fall into the triangular prism-shaped space between the first duckbill blade 221 and the second duckbill blade 222. After the first duckbill blade 221 and the second duckbill blade 222 are opened, the seeds can fall out from the triangular prism-shaped space to achieve sowing.

[0036] The guide rod 211 is slidably disposed on one side of the housing 210. The guide rod 211 includes a first long plate 212 and a second long plate 213. The first long plate 212 and the second long plate 213 have the same shape and thickness. A parallelogram-shaped through hole is opened on the first long plate 212. An inner plate 215 is installed on the side of the second long plate 213 near the first long plate 212. The outer shape of the inner plate 215 is similar to that of the parallelogram-shaped through hole, but the size of the inner plate 215 is smaller than that of the parallelogram-shaped through hole. After the first long plate 212 and the second long plate 213 are fixedly installed with screws, the inner plate 215 is embedded in the parallelogram through hole, and each outer side of the inner plate 215 is equidistant from the inner side of the corresponding parallelogram through hole by a predetermined distance, thereby forming an annular guide groove 217 between the outer side of the inner plate 215 and the inner side of the corresponding parallelogram through hole. The annular guide groove 217 includes two opposing transverse inclined grooves 218 and two opposing longitudinal grooves 219. The bottom of the guide rod 211 is fitted with a support foot, that is, the top of the support foot is fitted on the outside of the bottom end of the first long plate 212 and the bottom end of the second long plate 213, and a screw and nut are inserted on the outside of the support foot. The screw is inserted on the bottom of the first long plate 212 and the bottom of the second long plate 213 respectively, so as to facilitate the installation and removal of the support foot.

[0037] A side plate is installed on the side of the housing 210 near the guide rod 211 by screws. A horizontal groove is opened on the side plate, and a slider 216 is horizontally slidably arranged in the horizontal groove. The side of the slider 216 that extends out of the side plate is embedded in the annular guide groove 217 and can slide in an annular trajectory within the annular guide groove 217.

[0038] The transmission mechanism 240 includes a transmission plate 241, a first hook rod 242, and a second hook rod 243. The transmission plate 241 is a triangular plate, and one end of the transmission plate 241 is rotatably connected to the side of the housing 210 near the guide rod 211. The other two ends of the transmission plate 241 are provided with embedding holes. The first hook rod 242 and the second hook rod 243 are respectively hung in the two embedding holes at the other two ends of the transmission plate 241. The end of the first hook rod 242 away from the transmission plate 241 is hung on the slider 216, and the end of the second hook rod 243 away from the transmission plate 241 is hung on one side of the second duckbill plate 222.

[0039] In the initial state, the first driving component 230 drives the housing 210 to its highest position. Under its own weight, the guide rod 211 causes the slider 216 to be at the highest position in the annular guide groove 217, that is, at the higher end of the upper transverse inclined groove. The first duckbill plate 221 and the second duckbill plate 222 are in the closed state. It should be noted that in the initial state, the bottom of the guide rod 211, i.e., the bottom of the support foot, is also higher than a preset distance above the ground to ensure the normal operation of the walking mechanism.

[0040] During planting, the seeds are first placed into the box 210, falling between the first duckbill plate 221 and the second duckbill plate 222. The first driving component 230 is controlled to drive the box 210 downward. At this time, the box 210 and the guide rod 211 fall together until the bottom of the guide rod 211, i.e. the support foot, touches the surface of the soil. The guide rod 211 can no longer move downward. At this time, the first driving component 230 is controlled to drive the box 210 downward. The box 210 moves downward relative to the guide rod 211. The slider 216 begins to move downward in the longitudinal groove 219 on one side until the slider 216 falls to the bottom of the longitudinal groove 219 on one side. At this time, the first duckbill plate 221 and the second duckbill plate 222 have been embedded in the soil. At this point, the first driving component 230 continues to drive the housing 210 downwards. The housing 210 continues to move downwards relative to the guide rod 211, and the slider 216 begins to slide in the lower horizontal inclined groove 218, causing the slider 216 to move horizontally relative to the housing 210 in the horizontal groove. The slider 216 pulls the second duckbill 222 open through the transmission mechanism 240. The second duckbill 222 pries open the soil, forming a seed hole that communicates with the internal space. The seed falls into the seed hole, thus achieving seed planting. When the slider 216 slides to the lowest position of the lower horizontal inclined groove 218, the opening between the second duckbill 222 and the first duckbill 221 is at its maximum, ensuring that the seed falls completely into the seed hole. At this time, the first driving component 230 drives the housing 210 to move upward. The housing 210 moves upward relative to the guide rod 211. Meanwhile, the slider 216 slides in the longitudinal groove 219 on the other side until it reaches the top of the longitudinal groove 219. Then, the slider 216 enters the upper transverse inclined groove 218. Guided by the transverse inclined groove 218, the slider 216 moves horizontally relative to the housing 210. Through the transmission mechanism 240, it pushes the second duckbill plate 222 to close with the first duckbill plate 221, facilitating the falling of the next seed. When the slider 216 reaches the higher end of the upper transverse inclined groove, the first driving component 230 can drive the housing 210 and the guide rod 211 to rise together a certain distance to prevent the guide rod 211 from affecting the travel mechanism 100. At the same time, it also facilitates the next planting operation.

[0041] Rollers are provided on both sides of the side of the housing 210 near the guide rod 211. The rollers abut against the two sides of the guide rod 211, thereby limiting the sliding direction of the guide rod 211 relative to the housing 210. A housing 214 is screwed onto the side of the housing 210 near the guide rod 211. The inner side of the housing 214 is attached to the side of the guide rod 211 away from the housing 210, thereby confining the guide rod 211 to a position between the housing 214 and the housing 210. In addition, a vertical groove is formed in the guide rod 211, and a limiting block is installed on the side of the housing 210 near the guide rod 211. The limiting block slides in the vertical groove, and the two ends of the vertical groove limit the sliding direction of the limiting block, thereby limiting the relative sliding range between the guide rod 211 and the housing 210.

[0042] The inner plate 215 includes a first plate and a second plate with the same shape. The second plate has grooves at its highest and lowest positions. A wedge block is slidably disposed in the groove. After the inner plate 215 is installed, a spring is provided between the upper wedge block and the second plate, so that one end of the upper wedge block extends out of the inner plate 215 and into the higher end of the upper horizontal inclined groove 218. Due to its own weight, the lower wedge block extends out of the inner plate 215 and into the lower end of the lower horizontal inclined groove 218. The wedge-shaped surface of the wedge block faces the opposite direction of the sliding block 216, so that when the sliding block 216 slides in the forward direction, it can push the wedge-shaped surface of the wedge block and pass through the wedge block. If the sliding block 216 slides in the reverse direction, it cannot pass through the wedge block.

[0043] Reference Figure 6 The distribution mechanism 400 includes a distribution turntable 410, a limiting disc 413, and a fourth driving member 420. The limiting disc 413 is mounted above the middle of the frame 110. The distribution turntable 410 is rotatably mounted on top of the limiting disc 413, with the bottom surface of the distribution turntable 410 abutting against the top surface of the limiting disc 413. The outer circumference of the distribution turntable 410 is uniformly provided with multiple through holes 411, and the top outer circumference of the distribution turntable 410 is uniformly provided with multiple limiting cylinders 412. The inner diameter of the limiting cylinder 412 is the same as that of the through holes 411, and the limiting cylinders 412 and the through holes 411 are coaxially corresponding one to one.

[0044] A drop hole 414 is provided on the limiting plate, positioned above the top opening of the housing 210. A guide tube is installed at the bottom of the limiting plate corresponding to the drop hole 414, with one end of the guide tube away from the drop hole 414 approaching or extending into the top opening of the housing 210 to ensure that the seeds can fall smoothly into the housing 210. When the distribution turntable 410 rotates, each through hole 411 has the opportunity to correspond to the drop hole 414. During planting, multiple seeds are placed in the limiting tube, and the seeds are prevented from falling by the limiting plate. The fourth driving component 420 can drive the distribution turntable 410 to rotate, and the seeds that rotate to the position above the drop hole 414 can fall into the housing 210 through the drop hole 414. Thus, by controlling the rotation of the distribution turntable 410, the seeds can be dropped into the housing 210 in multiple batches for the planting mechanism 200 to perform multiple planting operations.

[0045] The fourth driving component 420 includes a motor 421, a lever 422, and levers 423. Multiple levers 423 are evenly arranged around the outer periphery of the top of the distribution turntable 410. The number of levers 423 is the same as the number of limiting cylinders 412, and they are distributed in a one-to-one correspondence. The motor 421 is mounted on the frame 110, and its output end is connected to the lever 422. One end of the lever 422 extends between two adjacent levers 423. The lever 422 is driven by the motor 421 to rotate, which in turn pushes the pin 423, causing the distribution turntable 410 to rotate. When the lever 422 rotates one revolution, it pushes only one pin 423 to move to the original position of the next pin 423. That is, when the lever 422 rotates one revolution, the distribution turntable 410 rotates exactly by a preset angle, so that the drop hole 414 moves from the position of the corresponding through hole 411 to the position of the next adjacent through hole 411. This allows the seeds in the next adjacent through hole 411 to fall from the drop hole 414 for planting, thereby realizing the seed distribution operation.

[0046] In addition, a stop mechanism is installed on the frame 110. The stop mechanism includes a bracket mounted on the frame 110, a stop pawl rotatably mounted on the bracket, and a torsion spring installed between the stop pawl and the bracket. The torsion spring provides a reset function for the stop pawl. In the natural state of the torsion spring, the stop pawl just abuts against the front side of the movement direction of one of the shift pins 423. At this time, the lever 422 just disengages from the other shift pin 423. When the lever 422 moves the next shift pin 423 again, one of the shift pins 423 will abut against the stop pawl and overcome the elastic force of the torsion spring to push the stop pawl to swing. When the lever 422 is about to disengage from the shift pin 423, the stop pawl just disengages from the shift pin 423, thus restricting the rotation of the next shift pin 423. This prevents the distribution dial 410 from continuing to rotate due to inertia when the lever 422 disengages from the shift pin 423, ensuring that the drop hole 414 accurately corresponds to each through hole 411.

[0047] In other embodiments, the fourth drive unit 420 may also be a servo motor mounted directly on the frame 110. The output end of the servo motor is coaxially connected to the distribution turntable 410. By controlling the rotation of the servo motor, the distribution turntable 410 can be driven to rotate, so as to realize the seed distribution operation.

[0048] Reference Figure 7 The soil covering mechanism 500 includes two uprights 510 and two discs 520. An mounting rod 530 is installed at the rear of the frame 110. The mounting rod 530 is vertically upward. A first connecting rod 531 is rotatably mounted in the middle of the mounting rod 530. A second connecting rod 533 is rotatably mounted in the top of the mounting rod 530. The middle of the second connecting rod 533 is rotatably connected to the top of the mounting rod 530. A third connecting rod 535 is rotatably mounted in one end of the second connecting rod 533. The end of the third connecting rod 535 away from the second connecting rod 533 is rotatably connected to the end of the first connecting rod 531 away from the mounting rod 530, thereby forming a quadrilateral structure among the first connecting rod 531, the mounting rod 530, the second connecting rod 533, and the third connecting rod 535.

[0049] A fifth drive unit 534 is also installed on the frame 110 near the mounting rod 530. The fifth drive unit 534 is a telescopic cylinder, such as a hydraulic cylinder, pneumatic cylinder, or electric cylinder. The output end of the fifth drive unit 534 is rotatably connected to the end of the second link 533 away from the third link 535. An adjusting plate 540 is installed at the end of the third link 535 away from the second link 533, extending a predetermined length. Fixing plates 541 are installed on both sides of the adjusting plate 540. The fixing plates 541 are L-shaped and are connected to the two uprights 510 by screws. Two discs 520 are rotatably installed on the bottom of the uprights 510 respectively. The two discs 520 are inclined and close to each other at the end near the rear of the frame 110, and the edges of the two discs 520 are bent in the direction of approaching each other, so that the two discs 520 are both bowl-shaped. By driving the fifth driving component 534, the second connecting rod 533 can be pushed to swing. The first connecting rod 531 restricts the third connecting rod 535, causing the adjusting plate 540 to swing. This allows the disc 520 to intermittently embed itself in the soil, achieving the soil covering operation at the seed location. Simultaneously, as the disc 520 moves using the walking mechanism 100, soil enters the disc 520, and the shape of the disc 520 facilitates the soil covering operation.

[0050] The adjusting plate 540 has a first adjusting groove 543 laterally formed on both sides. A first bolt 542 and a second bolt 545 are inserted into the first adjusting groove 543. The first bolt 542 is also inserted into the fixing plate 541, so that the adjusting plate 540 and the fixing plate 541 can be fixedly installed when the first bolt 542 is tightened. A second adjusting groove 544 is also formed on the fixing plate 541, and a second bolt 545 is inserted into the second adjusting groove 544. Tightening the first bolt 542 and the second bolt 545 can improve the connection stability between the adjusting plate 540 and the fixing plate 541. At the same time, by adjusting the position of the second bolt 545 in the first adjusting groove 543 and the second adjusting groove 544, the angle position of the fixing plate 541 relative to the adjusting plate 540 can be adjusted, thereby adjusting the soil covering angle of the two discs 520 to adapt to different seed covering requirements.

[0051] Furthermore, two sets of first adjustment grooves 543 are arranged side by side along the longitudinal direction on both sides of the adjustment plate 540. The distance between the two first adjustment grooves 543 in the two sets of side by side is different, so that the relative installation distance of the two discs 520 can be adjusted according to the installation of different sets of first adjustment grooves 543. This can adapt to different seed covering requirements.

[0052] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A planting machine characterized by, It includes: Walking mechanism; Box, mounted on the walking mechanism, the box is horizontally slidingly installed with a sliding block; Guide rod, vertically slidingly connected with the box, the guide rod is provided with a ring-shaped guide groove for guiding the sliding of one end of the sliding block, the ring-shaped guide groove includes two transversely inclined grooves and two longitudinal grooves staggered, when the box moves relative to the guide rod and the sliding block slides in the transversely inclined grooves, it can drive the sliding block to slide horizontally relative to the box; Duckbill seeder, communicating with the inside of the box, when the sliding block is at the top of the longitudinal groove, the bottom of the guide rod is lower than the bottom of the duckbill seeder, to ensure that in the initial state, when the box moves downward, the guide rod first hits the soil relative to the duckbill seeder; Transmission mechanism, for driving connection between the sliding block and the duckbill seeder, so that when the sliding block slides horizontally relative to the box, it drives the duckbill seeder to open and close; First driving member, mounted on the walking mechanism, the first driving member is used to drive the box to move.

2. The planting machine of claim 1, wherein: The duckbill seeder includes a first duckbill piece mounted on the bottom of the box and a second duckbill piece rotatably mounted on the bottom of the box, the first duckbill piece and the second duckbill piece can be overlapped, the transmission mechanism includes a transmission plate rotatably mounted on the box, the transmission plate is rotatably provided with a first hook rod and a second hook rod on both sides, the first hook rod is rotatably provided at one end away from the transmission plate on the second duckbill piece, and the second hook rod is rotatably provided at one end away from the transmission plate on the sliding block.

3. The planting machine of claim 1, wherein: The walking mechanism is also provided with a soil loosening mechanism, the soil loosening mechanism includes a support rod mounted on the walking mechanism, the support rod is rotatably provided with a soil loosening wheel and a second driving member for driving the soil loosening wheel to rotate.

4. The planting machine of claim 3, wherein: The support rod is rotatably mounted on the walking mechanism, the walking mechanism is rotatably provided with a first rocker arm and a third driving member for driving the first rocker arm to swing, the first rocker arm is rotatably provided with a second rocker arm at one end away from the third driving member, and the second rocker arm is rotatably connected with one end away from the first rocker arm to one end away from the soil loosening wheel of the support rod.

5. The planting machine of claim 4, wherein: The walking mechanism is rotatably provided with a support shaft, the support shaft is provided with a third rocker arm, the third rocker arm is rotatably provided with a fourth rocker arm at one end away from the support shaft, the fourth rocker arm is rotatably provided with a slide rod at one end away from the third rocker arm, the slide rod is provided with a soil loosening rake at one end away from the third rocker arm, the slide rod is slidingly connected with a piston block, the piston block is rotatably connected with the walking mechanism, a chain mechanism is arranged between the third driving member and the support shaft, and the third driving member drives the support shaft to rotate through the chain mechanism.

6. The planting machine of claim 1, wherein: The walking mechanism is further provided with a distribution mechanism, which comprises a distribution turntable rotatably arranged on the walking mechanism, a plurality of through holes are arranged on the distribution turntable, a limiting cylinder is arranged on the top of the distribution turntable and corresponds to the through holes, the walking mechanism is further provided with a limiting disc, the limiting disc is provided with a falling hole which is in communication with one of the through holes and is in communication with the inside of the box, and the walking mechanism is further provided with a fourth driving element for driving the rotation of the distribution turntable.

7. The planting machine of claim 6, wherein: The fourth driving element comprises a motor arranged on the walking mechanism, a push rod is arranged on the output end of the motor, a plurality of push rods corresponding to the limiting cylinders are uniformly arranged on the outer periphery of the distribution turntable, and one rotation of the push rod can drive the push rods to move to the positions of the adjacent push rods.

8. The planting machine of claim 1, wherein: The walking mechanism is further provided with a covering mechanism, which comprises two vertical rods arranged on the two sides of the walking mechanism, a disc is rotatably arranged on the bottom of each vertical rod, the circumferential planes of the two discs are arranged in a direction away from the box and are inclined towards each other, and the outer peripheries of the two discs are arranged in a direction away from each other and are curved.

9. The planting machine of claim 8, wherein: The walking mechanism is provided with a mounting rod, the bottom of the mounting rod is connected with the walking mechanism, a first connecting rod is rotatably arranged on the middle part of the mounting rod, a second connecting rod is rotatably arranged on the mounting rod, the middle part of the second connecting rod is rotatably connected with the top of the mounting rod, the walking mechanism is further provided with a fifth driving element for pushing the second connecting rod, the output end of the fifth driving element is rotatably connected with one end of the second connecting rod, a third connecting rod is rotatably arranged on the end of the second connecting rod away from the fifth driving element, the end of the first connecting rod away from the mounting rod is rotatably connected with the third connecting rod, and the third connecting rod is connected with the two vertical rods away from the second connecting rod.

10. The planting machine of claim 9, wherein: The third connecting rod is provided with an adjusting plate on the end away from the second connecting rod, the two sides of the adjusting plate are provided with fixing plates, the two sides of the adjusting plate are provided with first adjusting grooves, first and second bolts are arranged in the first adjusting grooves, the first bolt is arranged on the fixing plate, the fixing plate is provided with a second adjusting groove for the arrangement of the second bolt, and the fixing plate is arranged on the corresponding vertical rod.

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