A rapeseed sowing device for mountainous sloping plots

Abstract

This invention discloses a rapeseed sowing device for sloping mountain plots, belonging to the field of agricultural sowing technology. A suction pipe creates negative pressure in the annular air duct, with adsorption holes on the edge of the turntable corresponding to the air duct. This adsorption holes in the storage area are then precisely adsorbed onto the seeds, achieving accurate seed collection. The adsorption holes, along with the turntable, rotate to the isolation component area, preventing seed flow interference in the storage area. When the seeds reach the opening of the dropping box, they are at one-fifth of the closed air position of the annular pipe, and the adsorption holes, without negative pressure, allow the seeds to fall into the dropping box. Pressure-reducing vents lower the negative pressure in the area, preventing the seeds from being re-adsorbed. Finally, the negative pressure fan outlet delivers airflow to the dropping box through an air blowing pipe, precisely feeding the seeds through the blowing pipe and the feeding hopper into the trenches opened by the ditching component. This seed distribution method, combining negative pressure adsorption and airflow pushing, ensures the stability and uniformity of precision sowing on sloping plots, effectively preventing seed slippage and movement, and is suitable for sowing on sloping slopes.

Description

Technical Field

[0001] This invention relates to the field of agricultural sowing technology, specifically to a rapeseed sowing device for sloping mountain plots. Background Technology

[0002] The process of sowing rapeseed seeds requires the soil to be trenched, and then the rapeseed seeds are sown into the trenches and covered with soil. There are many sloping plots in mountainous and hilly areas, which are important reserve land resources for rapeseed planting. However, the uneven slopes and varying gradients of these plots pose certain difficulties for mechanized rapeseed sowing.

[0003] The existing rapeseed planter on flat terrain uses a horizontal design for its seed metering device and seed box. Due to the undulating slope of the mountainous terrain, the machine tilts as it moves up or down the slope. Under the influence of gravity, the seeds in the seed box tend to concentrate on one side, resulting in uneven seed filling of the seed metering tray. This leads to large differences in seeding rates between rows, localized missed seeding and double seeding, and difficulty in ensuring uniform seedling emergence. At the same time, under tilted conditions, seeds are prone to sliding and moving within the seed metering channel, further reducing the stability of precision seeding. Summary of the Invention

[0004] The purpose of this invention is to provide a rapeseed sowing device for sloping mountain plots, in order to solve the problems mentioned in the background art, where the machine tilts as it moves up or down the slope due to the undulating terrain. Under the influence of gravity, the seeds in the seed box tend to concentrate on one side, resulting in uneven seed filling of the seed tray, large differences in seeding amount between rows, local missed sowing and double sowing, and difficulty in ensuring uniform seedling emergence.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A rapeseed planting device for sloping hilly terrain includes a frame with a push handle on one side. A drive assembly is mounted on the frame, and front wheels are mounted at both ends of the bottom of the drive assembly. The front wheels are located on one side of the bottom of the frame, and a rear wheel is mounted on the side of the bottom of the frame away from the two front wheels. Two crossbars are fixedly connected to the bottom of the frame, and several mounting holes are provided in the crossbars. Two trenching components and two soil covering components are respectively mounted in the two crossbars. The trenching components and soil covering components are on the same horizontal line. The trenching components are close to the front wheels, and the soil covering components are close to the rear wheels. Two storage boxes are provided on the frame, located between the corresponding trenching components and soil covering components. Support rods are mounted on both sides of the storage boxes by bolts and fixed to the frame. A support plate is provided between the two storage boxes and fixed to the frame. An air guide assembly is installed through the top of the support plate. A negative pressure adsorption component is fixedly connected to one side of the storage box. A ventilation hole is provided on the side of the storage box away from the negative pressure adsorption component. One end of each of the two negative pressure adsorption components passes through the storage box and is connected to the end of the air guiding component. A material guiding component overlaps on the side of the negative pressure adsorption component away from the air guiding component. The material guiding component is located inside the storage box, and one end of it passes through the storage box and is connected to the end of the drive component. One side of the inner wall of the storage box is designed with a slope, and a hopper is connected through the top. The hopper is fixed on the upright on the frame. The area between the material guiding component and the inner wall of the storage box is used to store rapeseed seeds. An isolation component overlaps at one edge of the material guiding component. The isolation component is fixedly installed on one side of the inner wall of the storage box. The side of the isolation component is connected to the end of the air guiding component, and the bottom end of the isolation component passes through the storage box and is connected to the feeding hopper. The feeding hopper is fixed at the bottom of the storage box.

[0006] As a further embodiment of the present invention, the drive assembly includes a geared motor, which is mounted on the vehicle frame. The output shaft of the geared motor is fixedly connected to a first transmission mechanism and a second transmission mechanism. A main shaft is fixed in the first transmission mechanism. The main shaft is rotatably connected to one side of the bottom of the vehicle frame through a bushing, and the two front wheels are fixed to both ends of the main shaft.

[0007] As a further embodiment of the present invention, a connecting shaft is fixedly connected in the second transmission mechanism. The outside of the connecting shaft is rotatably connected to the frame through a bushing. A third transmission mechanism is fixed at both ends of the connecting shaft. The two third transmission mechanisms are fixedly connected to the ends of the material guiding assembly. The first transmission mechanism, the second transmission mechanism, and the third transmission mechanism are each composed of two transmission wheels and a belt sleeve.

[0008] As a further embodiment of the present invention, the trenching assembly includes a plow blade, a top block is fixedly connected to the top of the plow blade, a hinge seat is provided on one side of the top of the top block, a pin is rotatably connected between the top block and the hinge seat, one end of the pin is provided with an external thread and a nut is sleeved on it, and the top of the hinge seat is installed in a corresponding mounting hole by bolts.

[0009] As a further embodiment of the present invention, the soil covering assembly includes a baffle plate, on which a vertical pole is fixed. The top of the vertical pole is bolted into a corresponding mounting hole. Two soil covering plates and a flattening roller are installed on the side of the baffle plate near the plow blade. The two soil covering plates are symmetrically arranged about the middle of the baffle plate and form a V-shaped structure. The openings of the two soil covering plates face the plow blade. The flattening roller is located above the two soil covering plates.

[0010] As a further embodiment of the present invention, the negative pressure adsorption assembly includes an annular tube, which is fixed to one side of the inner wall of the storage box. An air passage is provided on one side of the annular tube at four-fifths, and the air passage communicates with the inner cavity of the annular tube. Several branch pipes are installed on the inner side of the annular tube. One end of each branch pipe communicates with the inner cavity of the annular tube, and the other end of each branch pipe is connected to a central pipe. The central pipe is fixed through one side of the storage box, and the interior of the central pipe is connected to one end of the air guiding assembly.

[0011] As a further embodiment of the present invention, the material guiding assembly includes a turntable, one side of which overlaps with one side of the annular tube. A plurality of adsorption holes are provided at the edge of the turntable, and the adsorption holes correspond to the positions of the air passages. A dispersing plate is fixed on the side of the turntable away from the annular tube, and a fixed shaft is fixedly connected to the middle of the turntable. The outside of the fixed shaft is rotatably inserted through a bushing in the middle of the storage box, and one end of the fixed shaft passes through the storage box and is fixedly connected to the third transmission mechanism.

[0012] As a further embodiment of the present invention, the isolation component includes an isolation ring, which is fixed in the inner wall of the storage box. The other side of the isolation ring overlaps with the turntable. The cross-sectional shape of the isolation ring is L-shaped and located at one-quarter of the turntable. A pressure-reducing air hole is provided in the isolation ring. A material drop box is fixedly connected to the bottom opening of the isolation ring. The material drop box is fixedly connected to one side of the bottom of the storage box. A blowing pipe is connected between the bottom of the material drop box and the feeding hopper.

[0013] As a further embodiment of the present invention, the air guiding assembly includes a negative pressure fan, which is installed through the support plate. The air intake at the bottom of the negative pressure fan is connected to two suction pipes, the other end of which is connected to the central pipe. The air outlet at the top of the negative pressure fan is connected to two blowing pipes, the other end of which is connected to the material drop box and corresponds to the position of the end of the blowing pipe.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention creates a negative pressure adsorption area through air channels on the annular tube. The adsorption holes on the edge of the turntable correspond to the positions of the air channels. Under negative pressure, rapeseed seeds in the storage area are adsorbed into the adsorption holes, achieving precise seed extraction. The dispersing discs on the turntable rotate synchronously with the turntable, loosening and stirring the seeds in the storage box to prevent clumping and ensure a continuous and stable seed extraction process. The adsorption holes with adsorbed seeds rotate with the turntable to the corresponding area of ​​the isolation component. The L-shaped cross-section design of the isolation ring leaves a channel for seed movement between it and the turntable. After entering through the top opening of the isolation ring, the seeds move within its internal channels, preventing them from being affected by the flow and collision of seeds in the storage area. This allows the adsorbed seeds to detach from the adsorption holes. As the seeds are carried by the turntable to the opening of the discharge box, they are currently in a closed-air position at one-fifth of the way through the annular tube, and the corresponding… The adsorption holes at the location do not generate negative pressure, causing the seeds to detach from the adsorption holes and fall into the feeding box at the bottom of the isolation ring. At the same time, the decompression vents on the isolation ring further reduce the negative pressure in this area, preventing excessive negative pressure inside the channel between the isolation ring and the turntable from re-adsorbing the falling seeds and improving the stability of seed falling. The bottom of the feeding box is connected to the feeding hopper through a blowing pipe. Meanwhile, the air outlet at the top of the negative pressure fan in the air guiding component continuously delivers directional airflow into the feeding box through the blowing pipe. Under the pushing action of the airflow, the seeds in the feeding box are quickly transported to the feeding hopper through the blowing pipe, and finally fall accurately into the sowing trough opened by the ditching component below through the feeding hopper. The seed dispensing method, which combines negative pressure adsorption and airflow pushing, prevents the sowing effect from being affected by the inclined slope, effectively avoids the seeds from slipping and moving in the seed dispensing channel, and ensures the stability and uniformity of precision sowing. 2. This invention adjusts the fixed position of the hinge seat in the mounting hole to change the soil penetration depth and tilt angle of the plow blade. When the hinge seat is fixed in mounting holes at different heights, the soil penetration depth of the plow blade changes accordingly. By finely adjusting the mounting angle of the hinge seat, it can adapt to the inclination of different slopes, ensuring that the plow blade maintains a suitable soil penetration state during its movement, thereby creating planting furrows with uniform depth and regular shape. The adjustable structure of the plow blade can adapt to the operational needs of different slopes, avoiding uneven furrow depths caused by uneven slopes; seed placement... After the trenches are laid, the soil covering assembly begins operation. Two soil covering plates are symmetrically arranged in a V-shape, with their openings facing the trenches created by the plow blades. As the machine moves forward, the soil covering plates push the soil from both sides of the trenches into the trenches, covering the surface of the rapeseed seeds and completing the soil covering operation. The flattening roller is located above the two soil covering plates and rotates synchronously with the machine, lightly compacting the soil after covering. This ensures that the seeds are in close contact with the soil, preventing the seeds from shifting due to wind, rain, or other factors, while also ensuring soil aeration and providing good conditions for seed germination. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the front view of the present invention; Figure 3 This is a schematic diagram of the structure of the driving component of the present invention; Figure 4 This is a three-dimensional structural diagram of the cross frame of the present invention; Figure 5 This is a schematic diagram of the trenching component of the present invention; Figure 6 This is a schematic diagram of the structure of the soil covering component of the present invention; Figure 7 This is a schematic diagram of the structure of the storage box and hopper of the present invention; Figure 8 This is a bottom view of the storage box of the present invention. Figure 9 This is a partial cross-sectional structural diagram of the storage box of the present invention; Figure 10 This is a side cross-sectional view of the storage box of the present invention; Figure 11 This is a schematic diagram of the structure of the isolation component of the present invention; Figure 12 This is a schematic diagram of the unfolded structure of the negative pressure adsorption component and the material guiding component of the present invention; Figure 13 This is a schematic diagram of the negative pressure adsorption component of the present invention.

[0017] The attached diagram lists the components represented by each number as follows: 1. Frame; 2. Push handle; 3. Drive assembly; 301. Gear motor; 302. First transmission mechanism; 303. Main shaft; 304. Second transmission mechanism; 305. Connecting shaft; 306. Third transmission mechanism; 4. Front wheel; 5. Rear wheel; 6. Crossbeam; 7. Mounting hole; 8. Trenching assembly; 801. Plow blade; 802. Top block; 803. Pin; 804. Hinge seat; 9. Soil covering assembly; 901. Baffle; 902. Upright; 903. Soil covering plate; 904. Flattening roller; 10. Support plate; 11. Storage 12. Material box; 13. Support rod; 14. Negative pressure adsorption assembly; 15. Ring pipe; 16. Air duct; 17. Branch pipe; 18. Central pipe; 19. Air guide assembly; 10. Negative pressure fan; 11. Suction pipe; 12. Air blowing pipe; 13. Material guide assembly; 14. Turntable; 15. Adsorption hole; 16. Dispersing plate; 17. Fixed shaft; 18. Hopper; 19. Isolation assembly; 10. Isolation ring; 10. Pressure reducing air hole; 11. Material drop box; 12. Air blowing pipe; 11. Feeding hopper; 12. Ventilation hole. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-13 The present invention provides a technical solution:

[0020] A rapeseed planting device for sloping mountain plots includes a frame 1, a push handle 2 installed on one side of the frame 1, a drive assembly 3 installed on the frame 1, front wheels 4 installed at both ends of the bottom of the drive assembly 3, the front wheels 4 being located on one side of the bottom of the frame 1, and a rear wheel 5 installed on the side of the bottom of the frame 1 away from the two front wheels 4. The drive assembly 3 includes a geared motor 301, which is mounted on the frame 1. The output shaft of the geared motor 301 is fixedly connected to a first transmission mechanism 302 and a second transmission mechanism 304. A main shaft 303 is fixed in the first transmission mechanism 302. The main shaft 303 is rotatably connected to one side of the bottom of the frame 1 through a bushing. The two front wheels 4 are fixed to both ends of the main shaft 303. The output shaft of the geared motor 301 synchronously drives the first transmission mechanism 302 and the second transmission mechanism 304 to rotate. A connecting shaft 305 is fixedly connected in the second transmission mechanism 304. The connecting shaft 305 is rotatably connected to the frame 1 through a bushing. A third transmission mechanism 306 is fixed to both ends of the connecting shaft 305. The two third transmission mechanisms 306 are fixedly connected to the ends of the guide assembly 15. The first transmission mechanism 302 drives the main shaft 303 to rotate through the cooperation of the transmission wheel and the belt. The main shaft 303 is supported on one side of the bottom of the frame 1 by the bushing, thereby driving the front wheels 4 fixed at both ends of the main shaft 303 to rotate, so that the whole machine can move smoothly along the inclined ground. The first transmission mechanism 302, the second transmission mechanism 304 and the third transmission mechanism 306 are each composed of two transmission wheels and belts connected together. The second transmission mechanism 304 drives the connecting shaft 305 to rotate. The connecting shaft 305 is supported on the frame 1 by the bushing, and the third transmission mechanism 306 fixed at both ends of it operates synchronously.

[0021] Two cross frames 6 are fixedly connected to the bottom of the frame 1. Two trenching components 8 and two soil covering components 9 are installed in the two cross frames 6 respectively. The trenching components 8 and the soil covering components 9 are on the same horizontal line. The trenching components 8 are close to the front wheel 4, and the soil covering components 9 are close to the rear wheel 5.

[0022] The trenching assembly 8 includes a plow blade 801, with a top block 802 fixedly connected to the top of the plow blade 801. A hinge seat 804 is provided on one side of the top of the top block 802. A pin 803 rotatably passes through the top block 802 and the hinge seat 804. One end of the pin 803 has an external thread and is fitted with a nut. Several mounting holes 7 are provided in the crossbeam 6, and the top of the hinge seat 804 is bolted into the corresponding mounting holes 7. The plow blade 801 is connected to the hinge seat 804 via the top block 802 fixed to its top, and the top block 802 and the hinge seat 804 are connected by the pin. 803 is a through-rotation connection. The external thread of one end of the pin 803 engages with the nut to lock and fix the top block 802 and the hinge seat 804. The top of the hinge seat 804 is bolted to the corresponding mounting hole 7 in the cross frame 6. During operation, the soil penetration depth and tilt angle of the plow blade 801 can be changed by adjusting the fixed position of the hinge seat 804 in the mounting hole 7 according to the slope of the mountainous sloping plot, soil hardness, and preset sowing depth requirements. When the hinge seat 804 is fixed in the mounting hole 7 at different heights, the soil penetration depth of the plow blade 801 changes accordingly.

[0023] The soil covering assembly 9 includes a baffle 901, on which a vertical rod 902 is fixed. The top of the vertical rod 902 is bolted into the corresponding mounting hole 7. Two soil covering plates 903 and a flattening roller 904 are installed on the side of the baffle 901 near the plow blade 801. The two soil covering plates 903 are symmetrically arranged about the middle of the baffle 901 and form a V-shaped structure. The openings of the two soil covering plates 903 face the plow blade 801. The flattening roller 904 is located above the two soil covering plates 903. The baffle 901 in the soil covering assembly 9... The upright 902 is fixed in the mounting hole 7 of the cross frame 6. The two soil covering plates 903 are symmetrically arranged in a V-shape, with their openings facing the grooves opened by the plow blade 801. During the movement of the whole machine, the soil covering plates 903 push the soil on both sides of the groove into the groove, covering the surface of the rapeseed, and completing the soil covering operation. The flattening roller 904 is located above the two soil covering plates 903 and rotates synchronously with the movement of the whole machine to slightly compact the soil after covering, so that the seeds are closely attached to the soil and prevent the seeds from shifting due to wind, rain and other factors.

[0024] The frame 1 is provided with two storage boxes 11, which are located between the corresponding trenching component 8 and the soil covering component 9. Support rods 12 are installed on both sides of the storage boxes 11 by bolts. The support rods 12 are fixed to the frame 1. A support plate 10 is provided between the two storage boxes 11. The support plate 10 is fixed to the frame 1. An air guide component 14 is installed through the top of the support plate 10.

[0025] A negative pressure adsorption component 13 is fixedly connected to one side of the storage box 11. A ventilation hole 19 is opened on the side of the storage box 11 away from the negative pressure adsorption component 13. One end of the two negative pressure adsorption components 13 passes through the storage box 11 and is connected to the end of the air guiding component 14. A material guiding component 15 is attached to the side of the negative pressure adsorption component 13 away from the air guiding component 14. The material guiding component 15 is located inside the storage box 11, and one end passes through the storage box 11 and is connected to the end of the drive component 3. The third transmission mechanism 306 drives the material guiding component 15 to work.

[0026] One side of the inner wall of the storage box 11 is designed with a slope, and the top is connected to the hopper 16. The hopper 16 is fixed on the upright on the frame 1. The area between the guide component 15 and the inner wall of the storage box 11 is used to store rapeseed seeds. The slope design of the inner wall of the storage box 11 can prevent the seeds from clustering on one side under inclined conditions, and ensure that the seeds are evenly distributed in the storage area between the guide component 15 and the inner wall of the storage box 11.

[0027] An isolation component 17 is attached to one edge of the material guiding component 15. The isolation component 17 is fixedly installed on one side of the inner wall of the storage box 11. The side of the isolation component 17 is connected to the end of the air guiding component 14, and the bottom end of the isolation component 17 penetrates the storage box 11 and is connected to the feeding hopper 18. The feeding hopper 18 is fixed to the bottom of the storage box 11.

[0028] As a further embodiment of the present invention, the negative pressure adsorption assembly 13 includes an annular tube 131, which is fixed to one side of the inner wall of the storage box 11. An air passage 132 is provided on one-fifth of one side of the annular tube 131, and the air passage 132 corresponds to the adsorption area at the edge of the material guiding assembly 15. The remaining one-fifth arc segment is a closed air gap area without an air passage, and is located on one side of the bottom edge of the material guiding assembly 15. The air passage 132 is connected to the inner cavity of the annular tube 131. Several branch pipes 133 are installed on the inner side of the annular tube 131. One end of the branch pipe 133 is connected to the inner cavity of the annular tube 131, and the other end of the several branch pipes 133 is connected to a central pipe 134. The central pipe 134 is fixed through one side of the storage box 11, and the interior of the central pipe 134 is connected to one end of the air guiding assembly 14.

[0029] The air guiding assembly 14 includes a negative pressure fan 141, which is installed through the support plate 10. The air intake at the bottom of the negative pressure fan 141 is connected to two suction pipes 142, and the other end of the suction pipes 142 is connected to the central pipe 134.

[0030] When in operation, the negative pressure fan 141 starts and transmits negative pressure to the central tube 134 of the negative pressure adsorption component 13 through the air inlet at the bottom and the connected suction pipe 142. The central tube 134 distributes the negative pressure to each branch pipe 133 and forms a negative pressure adsorption area through the air passage 132 on the annular pipe 131, so as to adsorb seeds through the material guide component 15.

[0031] As a further embodiment of the present invention, the material guiding assembly 15 includes a turntable 151, one side of which overlaps with one side of the annular tube 131. A plurality of adsorption holes 152 are provided at the edge of the turntable 151, and the adsorption holes 152 correspond to the positions of the air passages 132. A dispersing plate 153 is fixed on the side of the turntable 151 away from the annular tube 131, and a fixed shaft 154 is fixedly connected to the middle of the turntable 151. The outside of the fixed shaft 154 is rotated through the middle of the storage box 11 by a bushing, and one end of the fixed shaft 154 passes through the storage box 11 and is fixedly connected to the third transmission mechanism 306.

[0032] During operation, the third transmission mechanism 306 drives the turntable 151 in the material guiding assembly 15 to rotate via the fixed shaft 154. The adsorption holes 152 on the edge of the turntable 151 correspond to the positions of the air passage 132. Under negative pressure, the rapeseed seeds in the storage area are adsorbed into the adsorption holes 152, completing the precise seed extraction. Because the diameter of the adsorption holes 152 is smaller than the diameter of the rapeseed seeds, the rapeseed seeds will not pass through the adsorption holes 152, thus improving the adsorption stability. The ventilation holes 19 on one side of the storage box 11 allow external gas to be introduced into the storage box 11, ensuring the stability of the negative pressure inside the storage box 11 and improving the adsorption effect on the seeds. In addition, the dispersing plate 153 on the turntable 151 rotates synchronously with the turntable 151, which can loosen and stir the seeds in the storage box 11 to prevent the seeds from clumping.

[0033] As a further embodiment of the present invention, the isolation assembly 17 includes an isolation ring 171, which is fixed in the inner wall of the storage box 11. The other side of the isolation ring 171 overlaps with the turntable 151. The cross-sectional shape of the isolation ring 171 is L-shaped and located at one-quarter of one side of the turntable 151. A pressure-reducing air hole 172 is provided in the isolation ring 171. A discharge box 173 is fixedly connected to the bottom opening of the isolation ring 171. The isolation ring 171 is located on the upper side of the edge of the turntable 151 and corresponds to the position of the ventilation hole 19. The discharge box 173 is fixedly fixed to the bottom side of the storage box 11. A blowing pipe 174 is connected between the bottom of the discharge box 173 and the feeding hopper 18. Two blowing pipes 143 are connected to the air outlet at the top of the negative pressure fan 141. The other end of the blowing pipe 143 is connected to the discharge box 173 and corresponds to the position of the end of the blowing pipe 174.

[0034] During operation, the isolation ring 171 in the isolation assembly 17 is fixed to the inner wall of the storage box 11. Its L-shaped cross-section design leaves a channel for seed movement between the isolation ring 171 and the turntable 151. An opening is provided at one end of the top of the isolation ring 171, located at the highest point of the turntable 151. After the seeds enter through the opening at the top of the isolation ring 171, they move within its internal channel, preventing the device from shaking. Due to the flow and collision of seeds in the storage area of ​​the storage box 11, the adsorbed seeds are released from the adsorption holes 152. As the seeds are carried by the turntable 151 to the opening of the discharge box 173, they are currently in a closed-loop position at one-fifth of the length of the annular tube 131, and the corresponding adsorption holes 152 are closed. 2. No negative pressure is generated, causing the seeds to detach from the adsorption hole 152 and fall into the material box 173 at the bottom of the isolation ring 171. At the same time, the pressure reducing vent 172 on the isolation ring 171 further reduces the negative pressure in this area, preventing excessive negative pressure inside the channel between the isolation ring 171 and the turntable 151 from re-adsorbing the falling seeds and improving the stability of the falling seeds. The width of the pressure reducing vent 172 is smaller than the diameter of the seed, so that the seed will not pass through the pressure reducing vent 172. Moreover, the pressure reducing vent 172 is designed in a strip shape, and the adsorption force generated by the strip shape is much smaller than that of the adsorption hole 152, making it difficult for it to act on the surface of the round seed, preventing the seed from entering the interior of the isolation ring 171 through the pressure reducing vent 172.

[0035] The bottom of the feeding box 173 is connected to the feeding hopper 18 through the blowing pipe 174. At the same time, the air outlet at the top of the negative pressure fan 141 in the air guiding component 14 continuously delivers directional airflow into the feeding box 173 through the blowing pipe 143. Under the pushing action of the airflow, the seeds in the feeding box 173 are quickly transported to the feeding hopper 18 through the blowing pipe 174. Finally, the seeds fall accurately into the sowing furrow opened by the furrowing component 8 below through the feeding hopper 18, completing the orderly placement of the seeds, avoiding the seeds from slipping or moving in the seed discharge channel, eliminating empty holes, and improving the stability of the sowing work.

[0036] Working principle of this invention:

[0037] In use, the device is moved to the starting point of the operation on the sloping hillside by pushing the handle 2. Before rapeseed sowing, the plow blade 801 is connected to the hinge seat 804 through the top block 802 fixed at the top. The top block 802 and the hinge seat 804 are rotatably connected by a pin 803. The external thread at one end of the pin 803 is engaged with the nut to lock the top block 802 and the hinge seat 804. The top of the hinge seat 804 is installed in the corresponding mounting hole 7 of the cross frame 6 by bolts. During operation, the depth of penetration and tilt angle of the plow blade 801 can be changed by adjusting the fixed position of the hinge seat 804 in the mounting hole 7 according to the slope of the sloping mountain plot, soil hardness, and preset sowing depth requirements. When the hinge seat 804 is fixed in the mounting hole 7 at different heights, the depth of penetration of the plow blade 801 changes accordingly. By finely adjusting the mounting angle of the hinge seat 804, it can be adapted to the tilt of different slopes, ensuring that the plow blade 801 always maintains a suitable penetration state during the movement, thereby creating sowing furrows with uniform depth and regular shape.

[0038] When the geared motor 301 in the drive assembly 3 is started, the output shaft of the geared motor 301 synchronously drives the first transmission mechanism 302 and the second transmission mechanism 304 to operate. The first transmission mechanism 302 drives the main shaft 303 to rotate through the cooperation of the transmission wheel and the belt. The main shaft 303 is supported on one side of the bottom of the frame 1 by the bushing, thereby driving the front wheels 4 fixed at both ends of the main shaft 303 to rotate, so that the whole machine can move smoothly along the inclined block. At the same time, the second transmission mechanism 304 drives the connecting shaft 305 to rotate. The connecting shaft 305 is supported on the frame 1 by the bushing, and the third transmission mechanism 306 fixed at both ends of it operates synchronously. The third transmission mechanism 306 further drives the material guide assembly 15 to work.

[0039] During the movement of the machine, the ditching component 8 on the bottom of the frame 1 near the front wheel 4 simultaneously performs ditching operations. The plow blade 801 opens sowing furrows with uniform depth and regular shape. Next, the seed feeding stage is carried out. Rapeseed seeds are added into the storage box 11 through the hopper 16. The hopper 16 is fixed on the upright of the frame 1. The inclined design of the inner wall of the storage box 11 can prevent the seeds from clustering on one side under inclined conditions, ensuring that the seeds are evenly distributed in the storage area between the guide component 15 and the inner wall of the storage box 11. The negative pressure fan 141 in the air guiding component 14 is started, and the negative pressure is transmitted to the central tube 134 of the negative pressure adsorption component 13 through the air intake at the bottom and the connected suction pipe 142. The central tube 134 divides the negative pressure to each branch pipe 133, and finally forms a negative pressure adsorption area through the air channel 132 on the annular pipe 131. The third transmission mechanism 306 drives the turntable 151 in the material guiding component 15 to rotate through the fixed shaft 154. The adsorption holes 152 on the edge of the turntable 151 correspond to the positions of the air channel 132. Under the action of negative pressure, the rapeseed in the storage area is adsorbed into the adsorption holes 152, completing the precise seed picking. The ventilation hole 19 on one side of the storage box 11 allows external gas to be introduced into the storage box 11, ensuring the stability of the negative pressure inside the storage box 11 and improving the adsorption effect on seeds. In addition, the dispersing plate 153 on the turntable 151 rotates synchronously with the turntable 151, which can loosen and stir the seeds in the storage box 11, avoid seed clumping, and ensure a continuous and stable seed extraction process.

[0040] During the rotation of the turntable 151, the adsorption holes 152 with seeds adsorbed rotate with the turntable 151 to the corresponding area of ​​the isolation component 17. The isolation ring 171 in the isolation component 17 is fixed to the inner wall of the storage box 11. Its L-shaped cross-section design leaves a channel for the movement of seeds between the isolation ring 171 and the turntable 151. After the seeds enter through the top opening of the isolation ring 171, they move within its internal channels to prevent the device from shaking. Due to the flow and collision of seeds in the storage area of ​​the storage box 11, the adsorbed seeds are detached from the adsorption holes 152. As the seeds are carried by the turntable 151 to the opening of the drop box 173, they are currently in a closed air position at one-fifth of the annular tube 131, and the corresponding adsorption holes 152 do not generate negative pressure, causing the seeds to detach from the adsorption holes 152 and fall into the drop box 173 at the bottom of the isolation ring 171. At the same time, the pressure reducing vents 172 on the isolation ring 171 further reduce the negative pressure in this area, preventing excessive negative pressure inside the channel between the isolation ring 171 and the turntable 151 from re-adsorbing the falling seeds and improving the stability of the falling seeds. The bottom of the feeding box 173 is connected to the feeding hopper 18 through the blowing pipe 174. At the same time, the air outlet at the top of the negative pressure fan 141 in the air guiding component 14 continuously delivers directional airflow into the feeding box 173 through the blowing pipe 143. Under the pushing action of the airflow, the seeds in the feeding box 173 are quickly transported to the feeding hopper 18 through the blowing pipe 174, and finally fall accurately into the sowing ditch opened by the ditching component 8 below through the feeding hopper 18, completing the orderly placement of the seeds.

[0041] After the seeds are sown, as the machine continues to move, the soil covering assembly 9 on the bottom of the frame 1 near the rear wheel 5 simultaneously performs soil covering operations. The baffle 901 in the soil covering assembly 9 is fixed in the mounting hole 7 of the cross frame 6 by the upright 902. The two soil covering plates 903 are symmetrically arranged in a V-shape, with the opening facing the groove opened by the plow blade 801. During the movement of the machine, the soil covering plates 903 push the soil on both sides of the groove into the groove, covering the surface of the rapeseed, completing the soil covering operation. The flattening roller 904 is located above the two soil covering plates 903 and rotates synchronously with the movement of the machine to slightly compact the soil after covering, so that the seeds are in close contact with the soil.

Claims

1. A rapeseed sowing device for mountainous sloping plots, comprising a frame (1), characterized in that: A push handle (2) is installed on one side of the frame (1). A drive assembly (3) is installed on the frame (1). Two front wheels (4) are installed at the bottom ends of the drive assembly (3). The front wheels (4) are located on one side of the bottom of the frame (1). A rear wheel (5) is installed on the side of the bottom of the frame (1) away from the two front wheels (4). Two crossbars (6) are fixedly connected to the bottom of the frame (1). Several mounting holes (7) are opened in the crossbars (6). Two trenching components (8) and two soil covering components (9) are installed in the two crossbars (6). 9) On the same horizontal line, the trenching component (8) is close to the front wheel (4) and the soil covering component (9) is close to the rear wheel (5). The frame (1) is provided with two storage boxes (11). The storage boxes (11) are located between the corresponding trenching component (8) and soil covering component (9). Support rods (12) are installed on both sides of the storage boxes (11) by bolts. The support rods (12) are fixed on the frame (1). A support plate (10) is provided between the two storage boxes (11). The support plate (10) is fixed on the frame (1). An air guide component (14) is installed through the top of the support plate (10). A negative pressure adsorption assembly (13) is fixedly connected to one side of the inside of the storage box (11). A ventilation hole (19) is opened on the side of the storage box (11) away from the negative pressure adsorption assembly (13). One end of the two negative pressure adsorption assemblies (13) passes through the storage box (11) and is connected to the end of the air guiding assembly (14). A material guiding assembly (15) is attached to the side of the negative pressure adsorption assembly (13) away from the air guiding assembly (14). The material guiding assembly (15) is located inside the storage box (11), and one end passes through the storage box (11) and is connected to the end of the driving assembly (3). One side of the inner wall of the storage box (11) is designed with a slope. The top is connected to a hopper (16), which is fixed on a stand on the frame (1). The area between the guide component (15) and the inner wall of the storage box (11) is used to store rapeseed seeds. An isolation component (17) is attached to one edge of the guide component (15). The isolation component (17) is fixedly installed on one side of the inner wall of the storage box (11). The side of the isolation component (17) is connected to the end of the air guide component (14). The bottom end of the isolation component (17) passes through the storage box (11) and is connected to a feeding hopper (18). The feeding hopper (18) is fixed to the bottom of the storage box (11).

2. The rapeseed sowing device for mountain inclined plots according to claim 1, characterized in that: The drive assembly (3) includes a geared motor (301), which is mounted on the frame (1). The output shaft of the geared motor (301) is fixedly connected to a first transmission mechanism (302) and a second transmission mechanism (304). A main shaft (303) is fixed in the first transmission mechanism (302). The main shaft (303) is rotatably connected to one side of the bottom of the frame (1) through a bushing, and the two front wheels (4) are fixed to both ends of the main shaft (303).

3. The rapeseed sowing device for mountain inclined plots according to claim 2, characterized in that: The second transmission mechanism (304) is fixedly connected to a connecting shaft (305). The outside of the connecting shaft (305) is rotatably connected to the frame (1) through a bushing. The two ends of the connecting shaft (305) are respectively fixed to a third transmission mechanism (306). The two third transmission mechanisms (306) are respectively fixedly connected to the end of the material guide assembly (15). The first transmission mechanism (302), the second transmission mechanism (304) and the third transmission mechanism (306) are respectively composed of two transmission wheels and belt sleeves.

4. The rapeseed sowing device for mountain inclined plots according to claim 1, characterized in that: The trenching assembly (8) includes a plow blade (801), a top block (802) is fixedly connected to the top of the plow blade (801), a hinge seat (804) is provided on one side of the top of the top block (802), a pin (803) is rotatably connected between the top block (802) and the hinge seat (804), one end of the pin (803) is provided with an external thread and a nut is sleeved on it, and the top of the hinge seat (804) is installed in the corresponding mounting hole (7) by bolts.

5. A rapeseed planting device for sloping mountain plots according to claim 4, characterized in that: The soil covering assembly (9) includes a baffle (901), on which a pole (902) is fixed. The top of the pole (902) is bolted into the corresponding mounting hole (7). Two soil covering plates (903) and a flattening roller (904) are installed on the side of the baffle (901) near the plow blade (801). The two soil covering plates (903) are symmetrically arranged about the middle of the baffle (901) and form a V-shaped structure. The openings of the two soil covering plates (903) face the plow blade (801). The flattening roller (904) is located above the two soil covering plates (903).

6. A rapeseed planting device for sloping hilly terrain according to claim 3, characterized in that: The negative pressure adsorption assembly (13) includes an annular tube (131), which is fixed to one side of the inner wall of the storage box (11). An air passage (132) is provided on one side of the annular tube (131) at four-fifths of its length, and the air passage (132) is connected to the inner cavity of the annular tube (131). Several branch tubes (133) are installed on the inner side of the annular tube (131). One end of the branch tube (133) is connected to the inner cavity of the annular tube (131), and the other end of the branch tubes (133) is connected to a central tube (134). The central tube (134) is fixed through one side of the storage box (11), and the interior of the central tube (134) is connected to one end of the air guiding assembly (14).

7. A rapeseed planting device for sloping mountain plots according to claim 6, characterized in that: The material guiding assembly (15) includes a turntable (151), one side of which overlaps with one side of the annular tube (131). Several adsorption holes (152) are provided at the edge of the turntable (151), and the adsorption holes (152) correspond to the positions of the air passages (132). A dispersing plate (153) is fixed on the side of the turntable (151) away from the annular tube (131), and a fixed shaft (154) is fixedly connected to the middle of the turntable (151). The outside of the fixed shaft (154) is rotated through the middle of the storage box (11) through a bushing, and one end of the fixed shaft (154) passes through the storage box (11) and is fixedly connected to the third transmission mechanism (306).

8. A rapeseed planting device for sloping mountain plots according to claim 7, characterized in that: The isolation component (17) includes an isolation ring (171), which is fixed in the inner wall of the storage box (11). The other side of the isolation ring (171) overlaps with the turntable (151). The cross-sectional shape of the isolation ring (171) is L-shaped and located at one-quarter of the turntable (151). The isolation ring (171) has a pressure reducing air hole (172). A discharge box (173) is fixedly connected to the bottom opening of the isolation ring (171). The discharge box (173) is fixedly connected to the bottom side of the storage box (11). A blowing pipe (174) is connected between the bottom of the discharge box (173) and the feeding hopper (18).

9. A rapeseed planting device for sloping mountain plots according to claim 8, characterized in that: The air guiding assembly (14) includes a negative pressure fan (141), which is installed through the support plate (10). The air intake at the bottom of the negative pressure fan (141) is connected to two suction pipes (142), and the other end of the suction pipes (142) is connected to the central pipe (134). The air outlet at the top of the negative pressure fan (141) is connected to two blowing pipes (143), and the other end of the blowing pipes (143) is connected to the material drop box (173) and corresponds to the position of the end of the blowing pipe (174).

Images