A seed quantitative and distance seeding machine

Abstract

This invention relates to the field of agricultural machinery technology and discloses a seed quantitative and spacing seeder, including a frame, handle, battery, and motor. The frame has a handle, ground wheels and a press wheel at its bottom, a front connecting bracket and a rear connecting bracket in the middle of the frame, and the battery and motor are fixedly connected to the frame. A ground wheel axle is located between the ground wheels, with a sprocket on the axle and a sprocket on the motor shaft. The sprockets are connected by a chain. An automatic seeding device is located above the front and rear connecting brackets, consisting of a seed box, a seed metering plate, a four-hole seed wheel, a six-hole seed wheel, and a funnel, arranged from top to bottom. A furrowing and covering device is located below the frame, including a front furrow opener and a rear furrow opener. This device offers advantages such as convenient operation, simple steps, improved seeding efficiency and accuracy, adjustable furrow size according to seed size, and automatic soil covering after seeding.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically to a seed quantitative and spacing seeder. Background Technology

[0002] While traditional seeders offer fixed-distance or fixed-quantity settings, adjusting these settings is complex and cumbersome, and even after adjustment, the control over distance and quantity remains imprecise, resulting in low sowing efficiency and accuracy. Secondly, traditional seeders typically only create furrows of one width and depth. For small seeds, furrows that are too large bury the seeds too deeply after covering, affecting germination rates. For large seeds, furrows that are too small result in shallow germination after covering, also impacting germination rates. Furthermore, they cannot adjust the width and depth of the furrows according to the size and type of seeds being sown. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a seed quantitative and spacing seeder, which has both quantitative and spacing functions, and is easy and simple to operate during adjustment. It can improve sowing efficiency and accuracy, and can adjust the size of the furrows according to the size of the seeds being sown. It also has the advantages of automatically covering the soil after sowing. This solves the problems of traditional seeders, which, although they have a fixed spacing or quantitative process, have complicated and cumbersome operation steps when adjusting the fixed spacing or quantitative quantity, and can only open sowing furrows of one width and depth, unable to adjust the width and depth of the sowing furrows according to the size and type of seeds to be sown.

[0005] (II) Technical Solution

[0006] To achieve the aforementioned quantitative and spacing seeding functions, and to ensure convenient and simple operation during adjustment, thereby improving sowing efficiency and accuracy, adjusting the size of the furrows according to the size of the seeds, and automatically covering the seeds with soil after sowing, this invention provides the following technical solution: A seed quantitative and spacing seeder, comprising a frame, a handle, a battery, and a motor. The frame is U-shaped. A handle is provided on the open end support of the frame. A ground wheel is provided at the far end of the handle, and a press wheel is provided at the near end of the handle. The ground wheel and the press wheel are mounted on the bottom of the frame via bearing seats. A front connecting bracket and a rear connecting bracket are also provided between the two parallel supports of the frame. The battery is fixedly connected to the support at the closed end of the frame. The motor is fixedly mounted on the rear connecting bracket. The motor and the battery are fixedly connected and electrically connected. The two ground wheels are connected by a ground wheel axle. A sprocket is provided on the ground wheel axle. A sprocket is provided on the motor shaft. The sprocket and sprocket are connected by a chain. An automatic seeding device is provided above the front and rear connecting brackets. The automatic seeding device consists of a seed box, a seed metering plate, a four-hole seed wheel, a six-hole seed wheel, and a funnel, from top to bottom. A ditching and covering device is provided below the front and rear connecting brackets. The ditching and covering device includes a front ditcher and a rear ditcher. The front ditcher is mounted on the front connecting bracket, and the rear ditcher is mounted on the rear connecting bracket.

[0007] Preferably, the automatic seeding device includes a seed box, the bottom of which is provided with a plurality of seed dropping holes arranged horizontally and symmetrically. The bottom of the seed box is provided with a seed metering plate, the length of which is the same as the width of the seed box. The top of the seed metering plate is provided with a plurality of seed metering holes, the positions of which correspond to the seed dropping holes at the bottom of the seed box. The side of the seed metering plate is also provided with symmetrical brush slots along the length direction. Two brush slots are not connected. The brush slots are inclined. A seed metering brush is provided in the brush slot. The position of the seed metering brush corresponds to the position of the seed metering hole, and the number of brushes is the same as the number of seed metering holes. The bottom of the seed metering plate is also provided with an arc-shaped groove.

[0008] Preferably, the top of the seed metering plate is further provided with a limiting groove, in which a sliding and pull-out limiting plate and a counting plate are sequentially installed. The counting plate presses against the limiting plate. The limiting plate has two slots of the same width as a set of four-hole seed wheels or a set of six-hole seed wheels, and the distance between the two slots is the distance between the two sets of four-hole seed wheels. The counting plate has two slots of the same width as the set of four-hole seed wheels or a set of six-hole seed wheels, and the distance between the two slots is the distance between the two sets of four-hole seed wheels. The distance between the seed wheels is specified. The bottom of the seed metering plate is provided with six four-hole seed wheels and six-hole seed wheels. The four-hole seed wheels and six-hole seed wheels cooperate with the arc-shaped grooves at the bottom of the seed metering plate. The four-hole seed wheels and six-hole seed wheels are arranged in groups of three, from left to right, as four-hole seed wheel, six-hole seed wheel, four-hole seed wheel, and six-hole seed wheel. The positions of the four-hole seed wheels and six-hole seed wheels correspond to the first seed metering hole. The four-hole seed wheel is provided with four evenly distributed second seed metering holes, and the six-hole seed wheel is provided with six evenly distributed third seed metering holes.

[0009] Preferably, a seed wheel shaft is provided between the four-hole seed wheel and the six-hole seed wheel, a sprocket three is provided at one end of the seed wheel shaft, the seed wheel shaft is mounted on the frame, and a sprocket four is provided at one end of the ground wheel shaft. The sprocket four is connected to the sprocket three through a chain two.

[0010] Preferably, the four-hole seed wheel and the six-hole seed wheel can be replaced with a multi-hole seed wheel, the number of holes of which is determined according to the required sowing spacing.

[0011] Preferably, the trenching and covering device includes a front trencher and a rear trencher, with two front trenchers mounted on a front connecting bracket and two rear trenchers mounted on a rear connecting bracket.

[0012] Preferably, the front furrow opener includes a front lifting rod, a front intermediate connecting member, and a front connecting slider. The front intermediate connecting member and the front connecting slider are fixedly connected. The front connecting slider is slidably mounted on the front connecting bracket. The front lifting rod slides vertically through the front intermediate connecting member. The front lifting rod and the front intermediate connecting member, as well as the front connecting slider and the front connecting bracket, are fixed by bolts. A front furrow opener is provided at the bottom of the front lifting rod. A front receiving cylinder is provided behind the front furrow opener. A front seed guide tube is provided on the front receiving cylinder. The upper end of the front seed guide tube is connected to the seed box.

[0013] Preferably, the rear furrow opener includes a rear lifting rod, a rear intermediate connecting member, and a rear connecting slider. The rear intermediate connecting member and the rear connecting slider are fixedly connected. The rear connecting slider is slidably mounted on a rear connecting bracket. The rear lifting rod slides vertically through the rear intermediate connecting member. The rear lifting rod and the rear intermediate connecting member, as well as the rear connecting slider and the rear connecting bracket, are fixed by bolts. A rear furrow opener is provided at the bottom of the rear lifting rod. A rear receiving cylinder is provided behind the rear furrow opener. A rear seed guide tube is provided on the rear receiving cylinder. The upper end of the rear seed guide tube communicates with the seed box. The width of the rear furrow opener is smaller than that of the front furrow opener.

[0014] Preferably, a soil cover is provided behind the rear receiving cylinder. The upper end of the soil cover is rotatably mounted on the upper end of the rear receiving cylinder, and the middle part of the soil cover is connected to the bottom of the rear receiving cylinder by a spring. The soil cover is formed by folding a steel plate.

[0015] Preferably, the bottom of the four-hole seed wheel and the six-hole seed wheel are provided with two funnels, the funnels are fixedly installed on the frame, and the bottom of the funnels are detachably connected to the front or rear seed guide tube.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a seed quantitative and spacing seeder, which has the following beneficial effects:

[0018] 1. This seed metering and spacing seeder utilizes a frame, ground wheels, motor, seed box, seed metering plate, and four-hole and six-hole seed wheels in coordinated operation. Before use, first determine the spacing between the seeds to be sown and the number of seeds to be dropped at each sowing point. Select the appropriate four-hole, six-hole, or multi-hole seed wheel based on the spacing. For example, if a four-hole seed wheel is selected with a 30cm spacing between its four holes, the sowing spacing is 30cm. After selection, adjust the left and right position of the spacing plate so that the two slots on the spacing plate align with the first and third sets of four-hole seed wheels, respectively. The sowing distance is then set. Then, adjust the position of the limiting plate according to the number of seeds to be dropped at each sowing point. If only one seed is to be dropped, pull the limiting plate so that only one seed discharge hole 1 is exposed in the overlapping part of slot 2 and slot 1, and only one seed will be dropped at a time. If only two seeds are to be dropped, pull the limiting plate so that both seed discharge holes 1 are exposed in the overlapping part of slot 2 and slot 1, and only two seeds will be dropped at a time. After the adjustment is completed, put the seeds in the seed box, and then start the motor to make the ground wheel rotate, which in turn drives the four-hole seed wheel and the six-hole seed wheel to rotate. During the rotation of the four-hole seed wheel and the six-hole seed wheel, the seeds in the seed box pass through the dropping hole, slot 2, slot 1, seed discharge hole 1 in sequence and finally fall into seed discharge hole 2 or seed discharge hole 3. The four-hole seed wheel and the six-hole seed wheel continue to rotate so that the seeds fall into the funnel below, thus completing the sowing. The seed-dispensing brush located in the brush slot prevents two seeds from falling into one seed-dispensing hole (either two or three). If two seeds fall into one seed-dispensing hole (either two or three), the seed-dispensing brush will brush out the extra seed, ensuring accurate seeding. In short, the distance and quantity dispensing functions can be achieved simply by pulling the distance and number plates. This achieves both quantitative and distance dispensing functions, and the adjustment is convenient and simple, improving sowing efficiency and accuracy.

[0019] 2. This seed metering and spacing seeder utilizes a frame, front furrow openers, rear furrow openers, and soil covering devices in coordinated operation. Before sowing, it is first determined whether large or small seeds are being sown, the required sowing depth, and the distance between two rows of seeds. This information determines whether to use the front or rear furrow openers. When large seeds are being sown, the two front furrow openers are adjusted to the appropriate positions using the front intermediate connector, front connecting slider, and bolts. The two rear furrow openers are also adjusted to the same positions as the front openers. Because the front furrow openers are larger than the rear furrow openers, the rear furrow openers will not affect the furrows already opened by the front furrow openers. However, the soil covering devices on the rear furrow openers will still cover the furrows opened by the front furrow openers with soil. When small seeds are to be sown, the two front furrowing components are lifted away from the land where furrowing is needed using the front lifting rod. Then, the two rear furrowing components are adjusted to the appropriate positions, and they will create furrows suitable for the small seeds. The soil covering device on the rear furrowing components will then cover the furrows with soil. During sowing, the seeds are placed in the seed box, and the seeder is then propelled forward using the handle and motor to perform furrowing and soil covering. This achieves the effect of adjusting the size of the furrows according to the size of the seeds and automatically covering the soil after sowing. Attached Figure Description

[0020] Figure 1 This is a side view of a seed quantitative and spacing seeder according to the present invention;

[0021] Figure 2 This is a front view of a seed quantitative and spacing seeder according to the present invention;

[0022] Figure 3 This is a top view of a seed quantitative and spacing seeder according to the present invention;

[0023] Figure 4 This is a schematic diagram of the frame structure of a seed quantitative and spacing seeder according to the present invention;

[0024] Figure 5 This is a schematic diagram of the bottom structure of an automatic seeding device for a seed quantitative and spacing seeder according to the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of a four-hole seed wheel and a six-hole seed wheel of a seed quantitative and spacing seeder according to the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of a four-hole seed wheel, a six-hole seed wheel, and a seed wheel shaft of a seed quantitative and spacing seeder according to the present invention;

[0027] Figure 8 This is a schematic diagram of the seed metering plate structure of a seed quantitative and fixed-distance seeder according to the present invention;

[0028] Figure 9 This is a schematic diagram of the bottom structure of the seed metering plate of a seed metering and spacing seeder according to the present invention;

[0029] Figure 10 This is a schematic diagram of the limiting plate (limiting plate) structure of a seed quantitative and spacing seeder according to the present invention;

[0030] Figure 11 This is a schematic diagram of the limiting plate, the four-hole seed wheel, and the position of the limiting plate from which a seed falls out of the four-hole seed wheel, all in a seed quantitative and spacing seeder according to the present invention.

[0031] Figure 12 This is a schematic diagram of the limiting plate, the six-hole seed wheel, and the position of the limiting plate from which a seed falls out of the six-hole seed wheel, all in a seed quantitative and spacing seeder according to the present invention.

[0032] Figure 13 This is an enlarged schematic diagram of the structure at point A of the seed quantitative and spacing seeder of the present invention;

[0033] Figure 14 This is a schematic diagram of the front furrowing component and the rear furrowing component of a seed quantitative and spacing seeder according to the present invention;

[0034] Figure 15 This is a schematic diagram of the soil covering device structure of a seed quantitative and spacing seeder according to the present invention.

[0035] In the diagram: 1. Frame, 2. Handrail, 3. Pressing wheel, 4. Ground wheel, 5. Battery, 6. Ground wheel axle, 7. Bearing seat, 8. Motor, 9. Front connecting bracket, 10. Rear connecting bracket, 11. Sprocket 1, 12. Sprocket 2, 13. Chain 1, 14. Automatic seeding device, 15. Seed box, 16. Sprocket 3, 17. Seed wheel axle, 18. Chain 2, 19. Seed metering plate, 20. Seed metering hole 1, 21. Seed metering brush, 22. Limiting slot, 23. Brush slot, 24. Four-hole seed wheel, 25. Seed metering hole 2, 26. Six-hole seed wheel, 27. Seed metering hole III. 28. Spacing plate; 29. ​​Slot 1; 30. Number plate; 31. Slot 2; 32. Funnel; 33. Sprocket; IV. 34. Trenching and covering device; 35. Front trencher; 36. Front lifting rod; 37. Front intermediate connector; 38. Front connecting slider; 39. Front receiving tube; 40. Front seeding guide tube; 41. Front trenching component; 42. Rear trencher; 43. Rear lifting rod; 44. Rear intermediate connector; 45. Rear connecting slider; 46. Rear receiving tube; 47. Rear seeding guide tube; 48. Rear trenching component; 49. Covering device; 50. Spring. Detailed Implementation

[0036] 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.

[0037] Please see Figure 1-15 A seed metering and spacing seeder includes a frame 1, a handle 2, a battery 5, and a motor 8. The frame 1 is U-shaped and serves as the main structure of the seeder, providing mounting positions for other components and ensuring the stability and durability of the entire machine. Its U-shaped design allows the seeder to maintain balance during operation, while the open end facilitates operation and maintenance. The handle 2 is mounted on the open end support of the frame 1, providing a convenient handhold for the operator and making the seeder easy to control during movement or operation.

[0038] A ground wheel 4 is installed at the far end of the handlebar 2 of the frame 1, and a press wheel 3 is installed at the near end of the handlebar 2 of the frame 1. A rear connecting bracket 109 and a rear connecting support are also installed between the two parallel supports of the frame 1. The rear connecting bracket 109 and the rear connecting support are used to connect and support components such as the seed box 15 and the automatic sowing device 14, ensuring their stability and reliability during operation. A battery 5 is fixedly connected to the bracket at the closed end of the frame 1. A motor 8 is fixedly installed on the rear connecting support. The motor 8 and the battery 5 are fixedly connected and electrically connected. The battery 5 provides power to the motor 8, which drives the ground wheel axle 6 of the seeder to rotate, thereby driving the movement of other components. The electrical connection between the two ensures efficient energy transmission, enabling the seeder to operate normally. The two ground wheels 4 are connected by the ground wheel axle 6. The ground wheels 4 contact the ground and provide forward propulsion for the seeder through rolling, while also helping to maintain stability. The press wheel 3 compacts the soil after sowing, helping the seeds to adhere tightly to the soil and improving the germination rate. A sprocket 11 is mounted on the ground wheel axle 6, and a sprocket 22 is mounted on the motor shaft 8 of the motor 8. The sprocket 11 and sprocket 22 are connected by a chain 13. The chain 13 transmits the power generated by the motor 8 to the ground wheel axle 6, enabling the seeder to move forward.

[0039] An automatic seeding device 14 is installed above the rear connecting bracket 109. The automatic seeding device can realize automatic seeding.

[0040] The automatic seeding device 14 includes a seed box 15, with 12 horizontally arranged and symmetrically positioned seed holes at the bottom of the seed box 15. The seed box 15 is used to store seeds, and the seed holes at its bottom allow the seeds to fall evenly onto the seed metering plate 19. Its symmetrical design also corresponds to the seed metering holes 20 on the seed metering plate 19 below, making it easier for the seeds to fall.

[0041] The bottom of the seed box 15 is provided with a seed metering plate 19. The length of the seed metering plate 19 is the same as the width of the seed box 15. It is more aesthetically pleasing when the same width is installed at the bottom. There are 12 seed metering holes 20 on the top of the seed metering plate 19. The position of the seed metering holes 20 corresponds to the seed dropping holes at the bottom of the seed box 15. This makes it easier for the seeds in the seed box 15 to fall into the seed metering holes 20. The seed metering plate 19 also has symmetrical brush slots 23 along its length on its side. These slots provide space for the installation of the seed metering brushes 21. The two slots 23 are not connected and are angled. Each slot contains a seed metering brush 21, which removes excess seeds. The position of each brush 21 corresponds to the position of the first seed metering hole 20, and the number of brushes is the same as that of the first seed metering hole 20, with one brush 21 corresponding to one seed metering hole 20, ensuring the accuracy of removing excess seeds. The bottom of the seed metering plate 19 also has an arc-shaped groove. The seed metering plate 19 guides seeds to the four-hole seed wheel 24 or the six-hole seed wheel 26 through the first seed metering hole 20. The brush slots 23 and the seed metering brushes 21 prevent excess seeds from falling into the second seed metering hole 25 or the third seed metering hole 27, ensuring the accuracy of sowing. The rounded groove at the bottom is used to fit four-hole seeding wheel 24, six-hole seeding wheel 26, or multi-hole seeding wheel.

[0042] The top of the seed metering plate 19 is also provided with a limiting slot 22, which provides space for the installation of the distance limiting plate 28 and the numbering plate 30. The distance limiting plate 28 and the numbering plate 30, which can be slidably pulled out, are installed in sequence in the limiting slot 22. The numbering plate 30 presses on the distance limiting plate 28. The distance between seeds can be controlled by pulling and moving the position of the distance limiting plate 28 between sowing, and the number of seeds dropped each time can be controlled by pulling and moving the position of the numbering plate 30. The distance limiting plate 28 is provided with two slots 29 of the same width as a set of four-hole seed wheels 24 or a set of six-hole seed wheels 26. The distance between the two slots 29 is the distance between the two sets of four-hole seed wheels 24. The numbering plate 30 is provided with two slots 31 of the same width as a set of four-hole seed wheels 24 or a set of six-hole seed wheels 26. The distance between the two slots 31 is the distance between the two sets of four-hole seed wheels 24. The slot 29 exposes the seed-discharging holes 20 at the bottom. If two sets of four-hole seed wheels 24 are exposed, the sowing distance is 30cm; if two sets of six-hole seed wheels 26 are exposed, the sowing distance is 20cm. Pulling the limiting plate 30 again causes the slot 31 on the limiting plate 30 to overlap with the slot 29 on the limiting plate 28. When one seed-discharging hole 20 is exposed in the overlap, one seed is released each time; when two seed-discharging holes 20 are exposed, two seeds are released each time; and when three seed-discharging holes 20 are exposed, meaning the limiting plate 28 and the limiting plate 30 are completely overlapped, three seeds are released each time. The limiting plate 28 is used to adjust the sowing spacing, and the limiting plate 30 is used to adjust the number of seeds at each sowing point. The slot 29 on the limiting plate 28 ensures the correct position of the four-hole seed wheel 24 or the six-hole seed wheel 26. The number plate 30, through its cooperation with the limiting plate 28, controls the number of seeding holes 20 exposed in the overlapping part, thereby controlling the number of seeds dropped each time.

[0043] The bottom of the seed metering plate 19 is equipped with six four-hole seed wheels 24 and six-hole seed wheels 26. The four-hole seed wheels 24 and six-hole seed wheels 26 cooperate with the arc-shaped grooves at the bottom of the seed metering plate 19. The four-hole seed wheels 24 have four evenly distributed seeding holes 25, and the six-hole seed wheels 26 have six evenly distributed seeding holes 27. The distance between the four seeding holes 25 of the four-hole seed wheel 24 is 30cm, and the distance between the six seeding holes 27 of the six-hole seed wheel 26 is 20cm. As the seeper moves forward, the motor 8 drives the ground wheel shaft 6 to rotate, and the sprocket 33 on the ground wheel shaft 6 drives the sprocket 16, which in turn drives the four-hole seed wheels 24 and six-hole seed wheels 26 on the seed wheel shaft 17 to rotate. Even if the forward speed is different, the four-hole seed wheels 24 and six-hole seed wheels 26 maintain a consistent distance between seeds by rotating a certain distance. The four-hole seed reels 24 and six-hole seed reels 26 are grouped together in sets of three, arranged from left to right as follows: four-hole seed reel 24, six-hole seed reel 26, four-hole seed reel 24, and six-hole seed reel 26. This grouping of three allows for better coordination with the spacing plates 28 and 30 on the seed metering plate 19, thus improving control over distance and quantity. The four-hole seed reels 24 and six-hole seed reels 26 correspond to the positions of the first seed metering hole 20, allowing them to receive seeds falling from it. Seeds fall through the second and third seed metering holes 25 and 27 of the four-hole and six-hole seed reels 24 and 26 into the funnel 32 below, achieving sowing. Different numbers of holes correspond to different sowing intervals. Furthermore, only one seed is allowed to fall into each of the second and third seed metering holes 25 and 27. If multiple seeds fall in, the extra seeds will protrude outwards and be brushed off by the seed metering brush 21 as the four-hole and six-hole seed reels 24 and 26 rotate.

[0044] A seed wheel shaft 17 passes between the four-hole seed wheel 24 and the six-hole seed wheel 26. A sprocket 3 16 is mounted on one end of the seed wheel shaft 17, which is also mounted on the frame 1. A sprocket 4 33 is mounted on one end of the ground wheel shaft 6, and is connected to the sprocket 3 16 via a chain 2 18. The seed wheel shaft 17, mounted on the frame 1, is rotatable, supporting the four-hole seed wheel 24 and the six-hole seed wheel 26. The sprocket 3 16 on the seed wheel shaft 17, connected to the sprocket 4 33 via the chain 2 18, allows the ground wheel shaft 6 to rotate, thereby rotating the four-hole seed wheel 24 and the six-hole seed wheel 26 on the seed wheel shaft 17, thus completing the sowing process.

[0045] The four-hole seed reel 24 and the six-hole seed reel 26 can be replaced with multi-hole reels. The number of holes on the multi-hole reel is determined according to the required sowing spacing. These multi-hole reels are replaceable components. Depending on the sowing spacing requirements, different numbers of holes can be selected on the reel, thus achieving flexible adjustment of the sowing spacing.

[0046] The ground wheel 4 and the press wheel 3 are mounted on the bottom of the frame 1 via bearing seats 7. The bearing seats 7 not only connect the ground wheel 4 and the press wheel 3 to the frame 1, but also ensure that the ground wheel 4 and the press wheel 3 can rotate stably.

[0047] The furrowing and covering device 34 includes a front furrow opener 35 and a rear furrow opener 42 for creating sowing furrows in the soil and covering the seeds after sowing. This ensures that seeds of different sizes are accurately sown into the soil and properly covered. Two front furrow openers 35 are mounted on the front connecting bracket 9, and two rear furrow openers 42 are mounted on the rear connecting bracket 10. The distance between the sowing furrows can be adjusted using the two front furrow openers 35 and the two rear furrow openers 42.

[0048] The furrowing and covering device 34 includes a front furrow opener 35 and a rear furrow opener 42. The front furrow opener 35 is mounted on the front connecting bracket 9, and the rear furrow opener 42 is mounted on the rear connecting bracket 10. The front furrow opener 35 can create wider and deeper furrows, suitable for larger seeds, while the rear furrow opener 42 can create narrower and shallower furrows, suitable for smaller seeds. The depth and width of the furrows can be adjusted according to the seed size to meet the sowing needs of different seeds.

[0049] The front trencher 35 includes a front lifting rod 36, a front intermediate connector 37, and a front connecting slider 38. The front intermediate connector 37 and the front connecting slider 38 are fixedly connected. The front connecting slider 38 is slidably mounted on the front connecting bracket 9. The front lifting rod 36 slides vertically through the front intermediate connector 37. The front lifting rod 36 and the front intermediate connector 37, as well as the front connecting slider 38 and the front connecting bracket 9, are fixed together by bolts. The rear trencher 42 includes a rear lifting rod 43, a rear intermediate connector 44, and a rear connecting slider 45. The rear intermediate connector 44 and the rear connecting slider 45 are fixedly connected. The rear connecting slider 45 is slidably mounted on the rear connecting bracket 10. The rear lifting rod 43 slides vertically through the rear intermediate connector 44. The rear lifting rod 43 and the rear intermediate connector 44, as well as the rear connecting slider 45 and the rear connecting bracket 10, are fixed together by bolts. The front lifting rod 36 and rear lifting rod 43 are used to adjust the height of the front furrow opener 35 and the rear furrow opener 42, and further adjust the height of the front furrow opener 41 and the rear furrow opener 48 installed at their bottoms, allowing the user to choose whether to use the front furrow opener 35 or the rear furrow opener 42 to accommodate different seed sizes. The front intermediate connector 37 and the rear intermediate connector 44 provide support for the connection between the front lifting rod 36 and the rear lifting rod 43 and the front connecting slider 38 and the rear connecting slider 45. The front connecting slider 38 and the rear connecting slider 45 are slidably connected to the front connecting bracket 9 and the rear connecting bracket 10 respectively by bolts. During use, the bolts can be loosened to drag the front connecting slider 38 or the rear connecting slider 45, adjusting the distance between the two front furrow openers 35 and the two rear furrow openers 42. After adjusting to the appropriate position, the bolts can be tightened to adjust the distance between the two sowing furrows.

[0050] The bottom of the front lifting rod 36 is provided with a front ditching component 41. The front ditching component 41 is parallelogram-shaped when viewed from the side. It is made of a bent iron sheet and is fixedly installed at the bottom of the front lifting rod 36. The front receiving tube 39 is provided behind the front ditching component 41. The front receiving tube 39 can receive the seeds discharged from the front seeding guide tube 40 and guide them to fall into the sowing furrow. The front receiving tube 39 is provided with a front seeding guide tube 40. The upper end of the front seeding guide tube 40 is connected to the seed box 15. The front seeding guide tube 40 can receive the seeds falling from the seed box 15 and guide them to the front receiving tube 39.

[0051] The rear lifting rod 43 is equipped with a rear furrowing component 48 at its bottom. The rear furrowing component 48 is a triangular structure when viewed from the side. It is also formed by bending an iron sheet and is fixedly installed at the bottom of the rear lifting rod 43. A rear receiving cylinder 46 is provided behind the rear furrowing component 48. A rear seed guide tube 47 is provided on the rear receiving cylinder 46. The upper end of the rear seed guide tube 47 is connected to the seed box 15. The rear receiving cylinder 46 and the rear seed guide tube 47 have the same function as the front receiving cylinder 39 and the front seed guide tube 40. They all receive the seeds falling from the seed box 15 and guide them to fall into the corresponding sowing furrows to ensure the accuracy of seed falling.

[0052] The width of the rear furrow opener 48 is smaller than that of the front furrow opener 41. This is because when sowing large seeds, the width and depth of the sowing furrow are generally greater. Therefore, the wider front furrow opener 41 should be selected, and its height should be appropriately lowered to allow for deeper and wider sowing furrows. Furthermore, when using the front furrow opener 41, it needs to be used in conjunction with the covering device 49 installed on the rear furrow opener 48. Because its width is greater than that of the rear furrow opener 48, when the front and rear furrow openers 41 are at the same height, the rear furrow opener 48 will not affect the sowing furrow already opened by the front furrow opener 41, but the covering device 49 on the rear furrow opener 48 will still perform the covering operation.

[0053] A soil covering device 49 is also installed behind the rear receiving cylinder 46. The upper end of the soil covering device 49 is rotatably mounted on the upper end of the rear receiving cylinder 46, and the middle part of the soil covering device 49 is connected to the bottom of the rear receiving cylinder 46 by a spring 51. The soil covering device 49 is formed by folding a steel plate. During the soil covering operation, the bottom of the soil covering device 49 will contact the soil, and as it moves forward, it will gather the soil dug out of the furrow towards the center of the sowing furrow. This gathering requires a certain amount of force, so the spring 51 provides a certain force to the soil covering device 49, enabling it to cover the soil better. In addition, the rotatable connection between the soil covering device 49 and the rear receiving cylinder 46 allows the soil covering device 49 to have a certain swing range, which can help it pass smoothly when encountering small stones or obstacles during its movement, increasing the smoothness of sowing.

[0054] Two funnels 32 are provided at the bottom of the four-hole seed reel 24 and the six-hole seed reel 26, and the funnels 32 are fixedly mounted on the frame 1. The funnels 32 are located below the four-hole seed reel 24 and the six-hole seed reel 26, and are used to collect the seeds falling from the four-hole seed reel 24 and the six-hole seed reel 26 and guide them to the sowing position. The bottom of the funnel 32 is detachably connected to the front seed guide tube 40 or the rear seed guide tube 47. When the front furrow opener is needed, that is, when the seeds fall from the front seed guide tube 40, the bottom of the funnel 32 is connected to the top of the front seed guide tube 40; conversely, the bottom of the funnel 32 is connected to the top of the rear seed guide tube 47, so that the seeds are discharged from the rear seed guide tube 47.

[0055] Working principle: Before use, first determine the spacing between the seeds to be sown and the number of seeds to be sown at each sowing point. Select the appropriate four-hole seed wheel 24, six-hole seed wheel 26, or multi-hole seed wheel based on the spacing. For example, if you choose a four-hole seed wheel 24, the spacing between the four holes of the four-hole seed wheel 24 is 30cm, indicating that the sowing spacing is 30cm. After selection, adjust the left and right position of the limiting plate 28 so that the two slots 29 on the limiting plate 28 are aligned with the first and third sets of four-hole seed wheels 24, respectively. At this point, the sowing distance is set. Then, adjust the position of the counting plate 30 according to the number of seeds to be dropped at each sowing point. If only one seed is to be dropped, pull the position of the counting plate 30 so that only one seed discharge hole 20 is exposed in the overlapping part of slot 2 31 and slot 1 29. In this case, only one seed will be dropped at a time. If only two seeds are to be dropped, pull the position of the counting plate 30 so that both seed discharge holes 20 are exposed in the overlapping part of slot 2 31 and slot 1 29. In this case, two seeds will be dropped at a time. The adjustment is now complete. Next, seeds are placed in the seed box 15, and then the motor 8 is started, causing the ground wheel 4 to rotate, which in turn drives the four-hole seed wheel 24 and the six-hole seed wheel 26 to rotate. During the rotation of the four-hole seed wheel 24 and the six-hole seed wheel 26, the seeds in the seed box 15 pass sequentially through the seed drop hole, slot 2 31, slot 1 29, and seed metering hole 1 20, finally falling into seed metering hole 2 25 or seed metering hole 3 27. The four-hole seed wheel 24 and the six-hole seed wheel 26 continue to rotate, causing the seeds to fall into the funnel 32 below, thus completing the sowing process. The seed metering brush 21, located in the brush slot 23, prevents two seeds from falling into one seed metering hole 2 25 or seed metering hole 3 27. If two seeds fall into one seed metering hole 2 25 or seed metering hole 3 27, the seed metering brush 21 will brush out the extra seed, ensuring the accuracy of seed placement. This achieves the function of quantitative and precise spacing, and the adjustment is convenient and simple, improving sowing efficiency and accuracy.

[0056] Before sowing, first determine whether large or small seeds are being sown, the required sowing depth, and the distance between the two rows of seeds. This will determine whether to use the front furrow opener 15 or the rear furrow opener 22 to open the furrows. When large seeds are being sown, adjust the two front furrow openers 21 to the appropriate position using the front intermediate connector 17, the front connecting slider 18, and bolts. Also adjust the two rear furrow openers 28 to the same position as the front furrow openers. Since the front furrow openers 21 are larger than the rear furrow openers 28, the rear furrow openers 28 will not affect the furrows already opened by the front furrow openers 21. However, the soil covering device 29 on the rear furrow openers 28 will still cover the furrows opened by the front furrow openers 21 with soil. When small-sized seeds are to be sown, the two front furrowing components 21 are lifted away from the land where furrowing is needed via the front lifting rod 16. Then, the two rear furrowing components 28 are adjusted to the appropriate positions, and they will create furrows suitable for small-sized seeds. The soil covering device 29 of the rear furrowing component 28 will then cover the furrows with soil. During the sowing operation, the seeds to be sown are placed in the seed box 15, and then the seeder can be pushed forward by the handle 2 and the motor 8 to complete the furrowing and soil covering work.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seed quantitative and spacing seeder, comprising a frame (1), a handle (2), a battery (5), and a motor (8), wherein the frame (1) is U-shaped, and a handle (2) is provided on the support at the open end of the frame (1), characterized in that, The frame (1) has a ground wheel (4) at the far end of the armrest (2) and a pressure wheel (3) at the near end of the armrest (2). The ground wheel (4) and the pressure wheel (3) are mounted on the bottom of the frame (1) via bearing seats (7). A front connecting bracket (9) and a rear connecting bracket (10) are also provided between the two parallel supports of the frame (1). The battery (5) is fixedly connected to the bracket at the closed end of the frame (1). The motor (8) is fixedly mounted on the rear connecting bracket (10). The motor (8) and the battery (5) are fixedly connected and electrically connected. The two ground wheels (4) are connected by a ground wheel axle (6). A sprocket (11) is provided on the ground wheel axle (6). The motor (8) of the motor (8) A sprocket two (12) is provided on the shaft. The sprocket one (11) and the sprocket two (12) are connected by a chain one (13). An automatic seeding device (14) is provided above the front connecting bracket (9) and the rear connecting bracket (10). The automatic seeding device (14) consists of a seed box (15), a seed metering plate (19), a four-hole seed wheel (24), a six-hole seed wheel (26), and a funnel (32) from top to bottom. A ditching and covering device (34) is provided below the front connecting bracket (9) and the rear connecting bracket (10). The ditching and covering device (34) includes a front ditch opener (35) and a rear ditch opener (42). The front ditch opener (35) is installed on the front connecting bracket (9), and the rear ditch opener (42) is installed on the rear connecting bracket (10). The automatic seeding device (14) includes a seed box (15), the bottom of the seed box (15) is provided with a number of seed dropping holes arranged horizontally and symmetrically on the left and right, the bottom of the seed box (15) is provided with a seed metering plate (19), the length of the seed metering plate (19) is the same as the width of the seed box (15), the top of the seed metering plate (19) is provided with a number of seed metering holes (20), the position of the seed metering holes (20) corresponds to the seed dropping holes at the bottom of the seed box (15), and the bottom of the seed metering plate (19) is also provided with an arc-shaped groove. The top of the seed metering plate (19) is also provided with a limiting slot (22), in which a sliding and pullable limiting plate (28) and a limiting plate (30) are sequentially installed. The limiting plate (30) presses on the limiting plate (28). The limiting plate (28) is provided with two slots (29) of the same width as a set of four-hole seed wheels (24) or a set of six-hole seed wheels (26). The distance between the two slots (29) is the distance between the two sets of four-hole seed wheels (24). The limiting plate (30) is provided with two slots (31) of the same width as a set of four-hole seed wheels (24) or a set of six-hole seed wheels (26). The distance between the two slots (31) is the distance between the two sets of four-hole seed wheels (24). The bottom of the seed metering plate (19) is provided with six slots of each type. The four-hole seed wheel (24) and the six-hole seed wheel (26) are matched with the arc-shaped groove at the bottom of the seed metering plate (19). The four-hole seed wheel (24) and the six-hole seed wheel (26) are arranged in groups of three, from left to right: four-hole seed wheel (24), six-hole seed wheel (26), four-hole seed wheel (24), and six-hole seed wheel (26). The positions of the four-hole seed wheel (24) and the six-hole seed wheel (26) correspond to the seed metering hole one (20). The four-hole seed wheel (24) is provided with four evenly distributed seed metering holes two (25), and the six-hole seed wheel (26) is provided with six evenly distributed seed metering holes three (27). The ground wheel rotates, driving the four-hole seed wheel (24) and the six-hole seed wheel (26) to rotate, pulling the distance plate (28) and the number plate (30) to achieve the functions of fixed distance and fixed quantity. The front trencher (35) includes a front lifting rod (36), a front intermediate connector (37) and a front connecting slider (38), and the bottom of the front lifting rod (36) is provided with a front trencher (41); The rear trencher (42) includes a rear lifting rod (43), a rear intermediate connector (44) and a rear connecting slider (45). The bottom of the rear lifting rod (43) is provided with a rear trenching component (48), and the width of the rear trenching component (48) is smaller than that of the front trenching component (41). When sowing large seeds, adjust the two front furrowing pieces (41) to the appropriate position using the front connecting slider (38) and bolts of the front middle connector. Adjust the two rear furrowing pieces (48) to the same position as the front furrowing pieces (41). Cover the furrows opened by the soil covering device (49) on the rear furrowing pieces (48) with soil. When sowing small seeds, lift the two front furrowing pieces (41) using the front lifting rod (36) and then adjust the two rear furrowing pieces (48) to the appropriate position.

2. The seed quantitative and spacing seeder according to claim 1, characterized in that: The side of the seed metering plate (19) is also provided with symmetrical brush slots (23) along the length direction. The two brush slots (23) are not connected. The brush slots (23) are inclined. A seed metering brush (21) is provided in the brush slot (23). The position of the seed metering brush (21) corresponds to the position of the seed metering hole (20), and the number is the same as that of the seed metering hole (20).

3. A seed quantitative and spacing seeder according to claim 2, characterized in that: A seed wheel shaft (17) is provided between the four-hole seed wheel (24) and the six-hole seed wheel (26). A sprocket three (16) is provided at one end of the seed wheel shaft (17). The seed wheel shaft (17) is mounted on the frame (1). A sprocket four (33) is provided at one end of the ground wheel shaft (6). The sprocket four (33) is connected to the sprocket three (16) through a chain two (18).

4. A seed quantitative and spacing seeder according to claim 1, characterized in that: The trenching and covering device (34) includes a front trencher (35) and a rear trencher (42). The two front trenchers (35) are mounted on the front connecting bracket (9), and the two rear trenchers (42) are mounted on the rear connecting bracket (10).

5. A seed quantitative and spacing seeder according to claim 4, characterized in that: The front intermediate connector (37) and the front connecting slider (38) are fixedly connected. The front connecting slider (38) is slidably mounted on the front connecting bracket (9). The front lifting rod (36) is vertically slidably inserted through the front intermediate connector (37). The front lifting rod (36) and the front intermediate connector (37) and the front connecting slider (38) and the front connecting bracket (9) are fixed by bolts. A front receiving tube (39) is provided behind the front trenching part (41). A front seed guide tube (40) is provided on the front receiving tube (39). The upper end of the front seed guide tube (40) is connected to the seed box (15).

6. A seed quantitative and spacing seeder according to claim 5, characterized in that: The rear intermediate connector (44) and the rear connecting slider (45) are fixedly connected. The rear connecting slider (45) is slidably mounted on the rear connecting bracket (10). The rear lifting rod (43) is vertically slidably inserted into the rear intermediate connector (44). The rear lifting rod (43) and the rear intermediate connector (44) and the rear connecting slider (45) and the rear connecting bracket (10) are fixed by bolts. A rear receiving tube (46) is provided behind the rear trenching component (48). A rear seed guide tube (47) is provided on the rear receiving tube (46). The upper end of the rear seed guide tube (47) is connected to the seed box (15).

7. A seed quantitative and spacing seeder according to claim 6, characterized in that: A soil cover (49) is also provided behind the rear receiving cylinder (46). The upper end of the soil cover (49) is rotatably installed on the upper end of the rear receiving cylinder (46). The middle part of the soil cover (49) is connected to the bottom of the rear receiving cylinder (46) by a spring (51). The soil cover (49) is formed by folding a steel plate.

8. A seed quantitative and spacing seeder according to claim 1, characterized in that: The bottom of the four-hole seed wheel (24) and the six-hole seed wheel (26) are provided with two funnels (32). The funnels (32) are fixedly installed on the frame (1). The bottom of the funnels (32) is detachably connected to the front seed guide tube (40) or the rear seed guide tube (47).

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