A corn seeding device with adjustable row spacing

Abstract

The utility model relates to seeding equipment technical field, the utility model provides a kind of corn seeding device with adjustable plant spacing, it includes support shaft, seed taking tray, seeding ring body, cover and seed taking unit, seed taking unit includes seed taking clamp;Seed taking tray is rotationally arranged on support shaft;Seeding ring body and seed taking tray form seed taking chamber, and there is seed discharge channel on seeding ring body;Cover is arranged on support shaft, for covering seed taking chamber, and there is seed discharge port and feed pipe on cover;Seed taking clamp is rotationally arranged on seed taking tray;Wherein, seed taking clamp and cover form seed taking space for taking seed and conveying to the seed discharge port, under the action of seed taking unit, seed taking clamp rotates and pushes seed to pass through seed discharge port and enter into seed discharge channel, and the switching of seed taking and seed discharge state is completed.Through the above technical scheme, the problem that some large particles and smooth outer surface seeds are prone to seed sliding out, seed taking failure and empty seed seeding during seed taking is solved.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of sowing equipment technology, specifically to a corn sowing device with adjustable plant spacing. Background Technology

[0002] Seeders are widely used as agricultural machinery, with mechanical seeding being the most common. Mechanical seeding equipment typically uses a mechanical linkage mechanism to achieve seed dispensing, conveying, clamping, and seeding into the soil. Seeding into the soil, as the final step, is a crucial step in ensuring that the seeds are stably placed in the soil.

[0003] In existing technologies, the seed-planting step often uses a side-wall clamping seed metering device to pick up and deliver seeds, ensuring stable and precise seed delivery to the soil. This side-wall clamping method relies primarily on a finger-clamp structure to grip and deliver the seeds, pressing them against the side wall of the seed metering device. For example, Chinese patent CN222108519U discloses a finger-clamp structure that uses a seed-clamping groove to hold and fix the seeds. However, if the seed is not completely secured within the groove and is only pressed by the side edge of the groove, this can easily cause the seed to slip out, leading to empty seed planting and poor planting stability, especially when picking up large and smooth seeds such as corn seeds. Therefore, existing technologies need to be optimized to further improve planting stability. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this utility model provide a corn planting device with adjustable plant spacing, which solves the problem that some large and smooth seeds are prone to slipping out and failing to be picked up during seed picking, resulting in empty seed planting.

[0005] According to one aspect, at least one embodiment of the present invention provides a corn planting device with adjustable plant spacing, comprising: Support shaft, used to connect to the external drive structure for seeding; The seed-collecting disc is rotatably mounted on the support shaft; The sowing ring is set around the outer periphery of the seed collection tray, and a seed collection chamber for seed collection and transportation is formed around one side of the seed collection tray. The sowing ring has a seed discharge channel that is connected to the seed collection chamber. A cover, located on the support shaft, is used to seal the opening side of the seed-taking chamber. The cover has a seed outlet for connecting the seed-taking chamber and the seed discharge channel, and a feed pipe. The seed-collecting unit is located on the seed-collecting tray and in the seed-collecting chamber. The seed-collecting unit includes a seed-collecting clamp that is rotatably mounted on the seed-collecting tray. The seed-collecting clamp has two states: seed-collecting and seed-discharging. The seed-taking clamp and the protective cover form a seed-taking space. The seed-taking space is used to take the seeds from the seed-taking chamber and transport them to the seed discharge port. Under the action of the seed-taking unit, the seed-taking clamp rotates and pushes the seeds through the seed discharge port into the seed discharge channel, completing the switch between seed-taking and seed discharge states.

[0006] For example, in a corn planting device with adjustable plant spacing provided in at least one embodiment of the present invention, the seed-taking clamp has a seed-taking groove for holding seeds on the side near the planting ring, and the edge of the seed-taking groove is provided with spaced teeth.

[0007] For example, in at least one embodiment of the present invention, a corn planting device with adjustable plant spacing is provided, which further includes: The wheel body is sleeved on the outer periphery of the support shaft and located in the seed-collecting chamber. The wheel body rotates with the seed-collecting disc, and the outer periphery of the wheel body has a groove. The seed collection unit also includes: The swing seat is rotatably mounted on the seed-collecting tray and located in the seed-collecting chamber. The swing seat rotates around the outer circumference of the wheel along with the seed-collecting tray. The connecting rod is hinged at one end to the seed clamp and at the other end to the swing seat; In the seed-taking state, when the swing seat is configured to abut against the outer periphery of the wheel body, the swing seat drives the seed-taking clamp to rotate away from the cover via a connecting rod, so that a seed-taking space is formed between the seed-taking clamp and the cover, and the seeds are transferred to the seed outlet through the seed-taking space; in the seed-discharging state, the swing seat is configured to separate from the outer periphery of the wheel body and swing into the groove, and the swing seat drives the seed-taking clamp to rotate away from the cover via a connecting rod, and the swing of the seed-taking clamp pushes the seeds through the seed outlet.

[0008] For example, in a corn planting device with adjustable plant spacing provided in at least one embodiment of the present invention, there are several seed dispensing channels and several seed taking units, which are arranged in a one-to-one correspondence. The several seed dispensing channels and several seed taking units are distributed in a circle around the support axis.

[0009] For example, in a corn planting device with adjustable plant spacing provided in at least one embodiment of this utility model, the seed-collecting unit further includes: The elastic element has one end acting on the swing seat and the other end acting on the seed-taking plate. The elastic element is used to provide an elastic pushing force to drive the seed-taking clamp to push the seeds through the seed outlet.

[0010] For example, in a corn planting device with adjustable plant spacing provided in at least one embodiment of this utility model, the seed-collecting unit further includes: A limiting post is set on the seed-taking plate and located in the seed-taking chamber. The limiting post is configured such that when the seed-taking clamp is in the seed-discharging state, the elastic push force provided by the elastic element is used to drive the swing seat to press against the limiting post.

[0011] For example, in at least one embodiment of this utility model, a corn planting device with adjustable plant spacing is provided, wherein the protective cover has a through hole, and the wheel body has a limiting protrusion on the side away from the seed-taking disc; the planting device further includes: The limiting ornament is located on the outside of the cover. The limiting ornament has a limiting part. The limiting ornament is configured such that when the seeds are picked up or discharged, the limiting protrusion abuts against the limiting part.

[0012] For example, in a corn planting device with adjustable plant spacing provided in at least one embodiment of the present invention, the feed pipe has a discharge pipe extending downwards, and the outlet of the discharge pipe is provided with a pipe cover.

[0013] For example, in at least one embodiment of this utility model, a corn planting device with adjustable plant spacing is provided, wherein the planting ring includes: The base frame is placed on the seed collection tray; The seed metering components and accessories are spaced out, with a certain number of each component and accessory. Each seed metering component has a seed metering channel, and the seed metering components and accessories are arranged in a circle.

[0014] For example, in a corn planting device with adjustable plant spacing provided in at least one embodiment of this utility model, the planting ring further includes: There are several duckbill opening devices, all of which are installed on the base frame. Any one of the duckbill opening devices is connected to a seeding channel. The opening and closing mechanism is oscillating and mounted on the base frame. The opening and closing mechanism is configured to open the duckbill opening mechanism after oscillation so that the seeds can move from the seed dispensing channel into the seed hole. The second elastic element acts on the base frame at one end and on the opening and closing element at the other end. The second elastic element is used to provide the force that drives the opening and closing element to block the duckbill opening element.

[0015] The beneficial effects of the embodiments of this utility model are as follows: In this invention, during use, the seeder is first connected to the external drive structure, and then the seeder is placed on the ground to be sown; the outer circumference of the seeder ring presses against the ground; seeds are placed into the seed storage container pre-installed on the drive structure, and the seed storage container is a commonly used seed storage device or component in the prior art; the seeds are connected to the feed pipe through a pipeline, and the seeds can be transported to the seed collection chamber through the feed pipe, where they accumulate at the bottom; the drive structure is activated, and under the drive of the drive structure, the seeder ring is driven and begins to rotate on the support shaft, the seeder ring drives the seed collection disc to rotate synchronously, and the protective cover remains stationary; the seed collection disc will carry... The seed-collecting unit moves synchronously. During the movement, under the action of the seed-collecting unit, the seed-collecting clamp rotates to the first position. At this time, the seed-collecting clamp forms a seed-collecting space with a certain opening angle between the side walls. As the seed-collecting disc rotates, the opening of the seed-collecting space faces downward and enters the seed pile. Then, the opening faces upward and leaves the seed pile. During the process of the seed-collecting clamp passing through the seed pile, the seed-collecting groove will carry a certain amount (one or two seeds) of seeds away from the seed pile to complete the seed collection. At the same time, with the help of the teeth on the edge of the opening of the seed-collecting groove, the seeds are engaged and firmly fixed in the middle of the side wall of the seed-collecting groove box, ensuring the smooth transfer of seeds and preventing seeds from falling off.

[0016] The seed-collecting disc continues to rotate. When the seeds, guided by the seed-collecting clamp, move to the seed-discharging port, the port aligns with the discharging channel, creating a connection. Under the action of the seed-collecting unit, the clamp rotates towards the side wall, pushing the seeds through the port and into the channel. The seed-collecting disc then continues to rotate, causing the port and channel to separate, completing the seed discharging process. As the sowing ring rotates, the discharging channel aligns with the seed holes on the ground, and the seeds, under their own weight, slide into the holes, completing the sowing process.

[0017] The rotation of the sowing ring connects several seed dispensing channels sequentially to the seed dispensing port, enabling continuous seed sowing. Simultaneously, the seed-collecting groove and teeth on the seed-collecting clamp enhance the stability of seed collection and transport. Adjusting the number of seed dispensing channels allows for adjustment of plant spacing, catering to the sowing needs of different crops. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0019] Figure 1This is a schematic diagram of the overall structure in one embodiment of the present invention; Figure 2 for Figure 1 A magnified view of a portion of point A in the embodiment; Figure 3 for Figure 1 A schematic diagram of the structure of the seed-taking chamber (including seed-dispensing components and accessories, but excluding the protective cover) in the embodiment; Figure 4 for Figure 1 A schematic diagram of the structure of the seed-taking chamber (excluding seed-discharging components and accessories, including a partial protective cover) in the embodiment; Figure 5 for Figure 4 A magnified view of a local area at point B in the embodiment; Figure 6 for Figure 4 A magnified view of a portion of point C in the embodiment; Figure 7 for Figure 1 A schematic diagram of the structure at the junction of the support shaft, seed-collecting disc, wheel, and seed-collecting unit in the embodiment; In the diagram: 10. Support shaft; 11. Wheel body; 111. Groove; 112. Limiting protrusion; 20. Seed tray; 30. Seeding ring; 301. Base frame; 302. Seed metering component; 303. Accessory; 304. Duckbill opening component; 305. Opening and closing component; 306. Elastic component two; 31. Seed collection chamber; 32. Seed metering channel; 40. Protective cover; 401. Through hole; 41. Seed metering port; 42. Feed pipe; 421. Discharge pipe; 422. Pipe cover; 50. Seed collection unit; 51. Seed collection clamp; 511. Seed collection groove; 512. Biting teeth; 52. Seed collection space; 53. Swinging seat; 54. Connecting rod; 55. Elastic component one; 56. Limiting post; 60. Limiting swing component; 61. Limiting part. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0021] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figures 1-7 As shown, it illustrates a corn planting device with adjustable plant spacing in one embodiment of the present invention.

[0027] In some examples, see, for instance. Figures 1-7As shown, the specific components include a support shaft 10, a seed-collecting disc 20, a sowing ring 30, a protective cover 40, and a seed-collecting unit 50. The seed-collecting unit 50 includes a seed-collecting clamp 51 with a seed-collecting groove 511. The edge of the seed-collecting groove 511 has teeth 512. The extension direction of the seed-collecting groove 511 forms an angle with the rotation axis of the seed-collecting clamp 51, preferably 90 degrees. The seed-collecting groove 511 is concave and arc-shaped. Several spaced teeth 512 are distributed along the extension direction of the seed-collecting groove 511. The support shaft 10 is mounted on an external drive structure, which may be a tractor or similar equipment. The seed-collecting disc 20 is rotatably mounted on the support shaft 10. The sowing ring 30 surrounds the outer periphery of the seed-collecting disc 20, and the seed-collecting disc 20 and the sowing ring 30 are arranged in a circumferential shape. A temporary seed collection chamber 31 is provided for seed transfer. A seed discharge channel 32 communicating with the seed collection chamber 31 is provided on the sowing ring 30. There are several seed discharge channels 32, and the spacing between seeds can be adjusted by adjusting the number of seed discharge channels 32. The cover 40 is made of transparent material, so that the situation inside the seed collection chamber 31 can be directly observed. The lower end of the cover 40 has a discharge port (not shown in the figure). When the sowing operation is stopped, the excess material in the seed collection chamber 31 can be discharged through the discharge port. The cover 40 is sealed on the opening side of the seed collection chamber 31. The cover 40 includes a flat end plate and a cylindrical side wall surrounding the flat end plate. The side wall extends into the seed collection chamber 31 and slides in fit with the inner side wall of the sowing ring 30. The seed discharge port 41 is opened on the side wall. The feed pipe 42 is provided on the flat end plate. Seeds slide down the feed pipe 42 from top to bottom into the seed collection chamber 31. The seed-taking unit 50 is disposed on the seed-taking plate 20 and located in the seed-taking chamber 31. The seed-taking unit 50 includes a seed-taking clamp 51, which rotates on the seed-taking plate 20 with the help of the seed-taking unit 50.

[0028] In use, first connect the seeder to the external drive structure, then place the seeder on the ground to be sown; the outer circumference of the seeder ring 30 presses against the ground; place the seeds into the seed storage container pre-installed on the drive structure, the seed storage container being a commonly used seed storage device or component in the prior art; the seeds are connected to the feed pipe 42 through a pipeline, and can be transported to the seed collection chamber 31 via the feed pipe 42, where they accumulate at the bottom; start the drive structure, and under the drive structure, the seeder ring 30 is driven and begins to rotate on the support shaft 10, the seeder ring 30 drives the seed collection disc 20 to rotate synchronously, while the cover 40 remains stationary; the seed collection disc 20 carries the seed collection unit 50 Synchronous movement; during the movement, under the action of the seed-taking unit 50, the seed-taking clamp 51 rotates to the first position. At this time, the seed-taking clamp 51 forms a seed-taking space 52 with a certain opening angle between the side walls. As the seed-taking disc 20 rotates, the opening of the seed-taking space 52 faces downward and enters the seed pile. Then, the opening faces upward and leaves the seed pile. During the process of the seed-taking clamp 51 passing through the seed pile, the seed-taking groove 511 will carry a certain amount (one or two seeds) of seeds away from the seed pile to complete the seed taking. At the same time, with the help of the biting teeth 512 on the edge of the opening of the seed-taking groove 511, the seeds are bitten and firmly fixed in the middle of the side wall of the seed-taking groove 511 box, ensuring the smooth transfer of seeds and preventing the seeds from falling off.

[0029] The seed-collecting tray 20 continues to rotate. When the seeds, following the seed-collecting clamp 51, move to the seed-discharging port 41, the seed-discharging port 41 and the seed-discharging channel 32 are aligned and connected. Under the action of the seed-collecting unit 50, the seed-collecting clamp 51 rotates towards the side wall, thus pushing the seeds through the seed-discharging port 41 and into the seed-discharging channel 32. Then, the seed-collecting tray 20 continues to rotate, and the seed-discharging port 41 and the seed-discharging channel 32 are separated, completing the seed discharging operation. As the sowing ring 30 rotates, the seed-discharging channel 32 aligns with the seed holes on the ground, and the seeds slide into the seed holes under their own weight, completing the sowing.

[0030] By rotating the sowing ring 30, several seed dispensing channels 32 are sequentially connected to the seed dispensing port 41, enabling continuous seed sowing. Simultaneously, the seed dispensing groove 511 and bite teeth 512 on the seed-collecting clamp 51 improve the stability of seed collection and transport. Adjusting the number of seed dispensing channels 32 allows for adjustment of plant spacing, catering to the sowing needs of different crops.

[0031] In some examples, see, for instance. Figures 3-7As shown, the structure of the sowing device is refined, specifically by adding a wheel 11. The wheel 11 is sleeved on the outer periphery of the support shaft 10, and it rotates with the seed-collecting disc 20 within the seed-collecting chamber 31. A groove 111 is provided on the side of the wheel 11 closest to the seed-collecting disc 20. The seed-collecting unit 50 is also refined, including a swing seat 53, a connecting rod 54, and an elastic element 55. The elastic element 55 can be a torsion spring from the prior art. The outer periphery of the wheel 11 abuts against the swing seat 53 with an arc-shaped cam structure. A limiting post 56 is also added to the seed-collecting disc 20, located on the side of the swing seat 53 away from the wheel 11.

[0032] In use, as the drive structure moves, the sowing ring 30 on the ground drives the seed-collecting disc 20 to rotate synchronously, and the seed-collecting disc 20 drives the swing seat 53 to move synchronously. The swing seat 53 rotates around the wheel 11. When the swing seat 53 abuts against the arc-shaped cam structure on the outer circumference of the wheel 11, the swing seat 53 starts to rotate on the seed-collecting disc 20 by means of the squeezing of the arc-shaped cam structure (the rotation direction at this time is defined as forward rotation). The rotating swing seat 53 drives the seed-collecting clamp 51 to rotate away from the side wall through the connecting rod 54, increasing the gap between the seed-collecting groove 511 on the seed-collecting clamp 51 and the side wall. At the same time, the seed-collecting clamp 51 enters the seed pile and scoops a certain amount of seeds (one or two seeds) from the seed pile. During the swinging process, the swing seat 53 pulls the elastic element 55, and the elastic element 55 opens and accumulates elastic force.

[0033] After the seeds are taken, as the seed tray 20 continues to rotate, the swing seat 53 continues to slide on the arc-shaped cam structure. At this time, the swing seat 53 rotates slightly in the opposite direction by a certain angle, and the elastic element 55 releases a little force. The opening angle between the seed clamp 51 and the side wall is slightly reduced, so that the seed clamp 51 can squeeze the seeds onto the side wall. With the help of the biting action of the teeth 512, the stability of the seed clamp is ensured, and the seeds are prevented from falling off during transportation.

[0034] When the swing seat 53 separates from the arc-shaped cam structure, the swing seat 53 is aligned with the groove 111. At this time, the seed-taking clamp 51 moves to the side of the seed outlet 41, and the seed outlet 41 is connected to the seed outlet channel 32. Then, the elastic element 55 releases the accumulated elastic force. Under the action of the elastic element 55, the swing seat 53 rotates in the opposite direction, and through the connecting rod 54, it drives the seed-taking clamp 51 to rotate towards the side wall, pushing the seeds through the seed outlet 41 into the seed outlet channel 32, completing the seeding operation. The swing seat 53 rotates in the opposite direction until it abuts against the limiting post 56 and then stops rotating. At this time, the position of the swing seat 53 abutting against the arc-shaped cam structure is exactly in the slot. The swing seat 53 is separated from the wheel body 11. When the swing seat 53 presses against the limiting post 56, the seed-taking clamp 51 remains inside the seed-taking chamber 31, preventing the seed-taking clamp 51 from extending into and passing through the seed discharge port 41, thus avoiding interference between the seed-taking clamp 51 and the side wall when the seed-taking disc 20 and the sowing ring 30 continue to rotate.

[0035] Then the sowing ring 30 and the seed-collecting disc 20 continue to rotate, and the swing seat 53 gradually approaches the arc-shaped cam structure again, thus repeating the seed collection and seed distribution operation in a cycle to complete the sowing. The number of seed collection units 50 and seed distribution channels 32 are both set in a one-to-one correspondence. With the setting of multiple seed distribution channels 32 and multiple seed collection units 50 in a single cycle, continuous seed sowing is achieved.

[0036] In some examples, see, for instance. Figures 1-4 and Figure 7 As shown, the structure of the cover 40 is refined. A through hole 401 is added to the flat end plate of the cover 40. A limiting swing member 60 is oscillating on the outer side of the flat end plate. The end of the limiting swing member 60 away from the swing axis has a limiting part 61. The limiting member is connected to the flat end plate by means of an elastic member three. The elastic member three is selected from the prior art of snap ring or torsion spring. One end of the elastic member three acts on the flat end plate, and the other end acts on the limiting swing member 60. In use, the elastic pushing force provided by the elastic element 3 causes the limiting swing 60 to swing toward the direction close to the flat end plate, and the limiting part 61 extends into the seed taking chamber 31 through the through hole 401. The wheel 11 in the seed taking chamber 31 has a limiting protrusion 112 away from the seed taking plate 20 (i.e. the side close to the flat end plate). During operation, the limiting protrusion 112 abuts against the limiting part 61 to prevent the wheel 11 from rotating synchronously with the seed taking plate 20 on the support shaft 10, thus ensuring the effectiveness of the operation of each component of the seed taking unit 50.

[0037] In some examples, see, for instance. Figure 1As shown, the structure of the feed pipe 42 is refined by adding a discharge pipe 421. A pipe cover 422 is provided at the outlet of the discharge pipe 421. In this example, the pipe cover 422 is fixed to the outlet of the discharge pipe 421 by a snap-fit ​​method, which is quick and easy to install and remove. After the sowing operation is completed, the seeds remaining in the feed pipe 42 can be discharged in time through the discharge pipe 421.

[0038] In some examples, see, for instance. Figures 1-3 As shown, the structure of the sowing ring 30 is refined. Specifically, the sowing ring 30 includes a base frame 301, spaced-apart seed metering components 302 and attachments 303, as well as a duckbill-shaped opening component 304, an opening and closing component 305, and an elastic element 306. The elastic element 306 is a spring, a technology already in use. The seed metering components 302 and attachments 303 are arranged in multiples, each corresponding to the next; in this example, six are selected for each. By adjusting the number and width of the attachments 303, the number of seed metering components 302 and attachments 303 in one ring can be adjusted, thereby adjusting the plant spacing for seed sowing. The duckbill-shaped opening component 304 has two states: open and closed. The opening and closing of the duckbill-shaped opening component 304 is achieved using the opening and closing component 305. Seeds entering the seeding channel 32 enter the duckbill opening component 304. When the base frame 301 rotates on the ground, the duckbill opening component 304 first inserts into the soil, forming a seed hole. As the base frame 301 continues to rotate, the ground comes into contact with the extension wall of the opening and closing component 305. The pressure from the ground causes the opening and closing component 305 to swing, thereby opening the duckbill opening component 304 and allowing the seeds inside to fall into the seed hole, completing the fixed-point sowing. When the opening and closing component 305 opens the duckbill opening component 304, it squeezes the elastic component 306. The elastic component 306 contracts and accumulates elastic force. As the base frame 301 rotates again, the duckbill opening component 304 and the opening and closing component 305 leave the soil in sequence. At this time, the elastic component 306 releases the accumulated elastic force, pushing the opening and closing component 305 to close the duckbill opening component 304, waiting for the next seed collection, seeding, and sowing.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A corn planting device with adjustable plant spacing, characterized in that, include: Support shaft (10) is used to connect to the external drive structure for seeding; The seed-taking disc (20) is rotatably mounted on the support shaft (10); A seeding ring (30) is arranged around the outer periphery of the seed collection tray (20), and a seed collection chamber (31) for seed collection and transportation is formed around one side of the seed collection tray (20). A seed discharge channel (32) communicating with the seed collection chamber (31) is provided on the seeding ring (30). A cover (40) is provided on the support shaft (10) for sealing the opening side of the seed chamber (31). The cover (40) has a seed outlet (41) for connecting the seed chamber (31) and the seed discharge channel (32). The cover (40) also has a feed pipe (42). The seed-taking unit (50) is disposed on the seed-taking plate (20) and located in the seed-taking chamber (31). The seed-taking unit (50) includes a seed-taking clamp (51) rotatably disposed on the seed-taking plate (20). The seed-taking clamp (51) has two states: seed taking and seed discharging. The seed-taking clamp (51) and the cover (40) form a seed-taking space (52). The seed-taking space (52) is used to take the seeds in the seed-taking chamber (31) and transport them to the seed outlet (41). Under the action of the seed-taking unit (50), the seed-taking clamp (51) rotates and pushes the seeds through the seed outlet (41) into the seed outlet channel (32), thus completing the switching between seed-taking and seed outlet states.

2. The corn planting device with adjustable plant spacing according to claim 1, characterized in that, The seed-taking clip (51) has a seed-taking groove (511) for holding seeds on the side near the sowing ring, and the edge of the seed-taking groove (511) is provided with spaced teeth (512).

3. The corn planting device with adjustable plant spacing according to claim 1, characterized in that, Also includes: The wheel body (11) is sleeved on the outer periphery of the support shaft (10) and located in the seed-taking chamber (31). The wheel body (11) is rotatably engaged with the seed-taking disc (20). The outer periphery of the wheel body (11) has a groove (111). The seed collection unit (50) further includes: The swing seat (53) is rotatably mounted on the seed collection tray (20) and located in the seed collection chamber (31). The swing seat (53) rotates around the outer circumference of the wheel body (11) along with the seed collection tray (20). The connecting rod (54) is hinged at one end to the seed-taking clamp (51) and at the other end to the swing seat (53); In the seed-taking state, when the swing seat (53) is configured to abut against the outer periphery of the wheel (11), the swing seat (53) drives the seed-taking clamp (51) to rotate away from the cover (40) by means of the connecting rod (54), so that the seed-taking clamp (51) and the cover (40) form the seed-taking space (52) and the seeds are transferred to the seed outlet (41) through the seed-taking space (52); in the seed-discharging state, the swing seat (53) is configured to separate from the outer periphery of the wheel (11) and swing into the groove (111), the swing seat (53) drives the seed-taking clamp (51) to rotate away from the cover (40) by means of the connecting rod (54), and the swing of the seed-taking clamp (51) pushes the seeds through the seed outlet (41).

4. The corn planting device with adjustable plant spacing according to claim 3, characterized in that, The number of seeding channels (32) and seed-taking units (50) are both several, and they are set in a one-to-one correspondence. The several seeding channels (32) and the several seed-taking units (50) are all distributed in a circle around the support axis (10).

5. The corn planting device with adjustable plant spacing according to claim 3, characterized in that, The seed collection unit (50) further includes: The elastic element (55) has one end acting on the swing seat (53) and the other end acting on the seed tray (20). The elastic element (55) is used to provide an elastic pushing force to drive the seed clamp (51) to push the seed through the seed outlet (41).

6. The corn planting device with adjustable plant spacing according to claim 5, characterized in that, The seed collection unit (50) further includes: A limiting post (56) is provided on the seed tray (20) and located in the seed chamber (31). The limiting post (56) is configured such that when the seed clamp (51) is in the seed dispensing state, the elastic push force provided by the elastic element (55) is used to drive the swing seat (53) to press against the limiting post (56).

7. The corn planting device with adjustable plant spacing according to claim 3, characterized in that, The cover (40) has a through hole (401), and the wheel (11) has a limiting protrusion (112) on the side away from the seed tray (20). The sowing device also includes: A limiting ornament (60) is swaying outside the cover (40). The limiting ornament (60) has a limiting part (61). The limiting ornament (60) is configured such that when taking or distributing seeds, the limiting protrusion (112) abuts against the limiting part (61).

8. The corn planting device with adjustable plant spacing according to claim 1, characterized in that, The feed pipe (42) has a downwardly extending discharge pipe (421), and the outlet of the discharge pipe (421) is provided with a pipe cover (422).

9. A corn planting device with adjustable plant spacing according to claim 1, characterized in that, The seeding ring (30) includes: The base frame (301) is disposed on the seed tray (20); The seeding components (302) and accessories (303) are spaced apart. There are several seeding components (302) and several accessories (303). Each seeding component (302) has a seeding channel (32). The seeding components (302) and several accessories (303) are distributed in a circle.

10. A corn planting device with adjustable plant spacing according to claim 9, characterized in that, The seeding ring (30) also includes: There are several duckbill opening components (304), and all of the duckbill opening components (304) are provided on the base frame (301). Any one of the duckbill opening components (304) is connected to one of the seed dispensing channels (32). An opening and closing component (305) is oscillatingly mounted on the base frame (301). The opening and closing component (305) is configured to open the duckbill opening component (304) after oscillation so that the seeds can move from the seed discharge channel (32) into the seed hole. The second elastic element (306) acts on the base frame (301) at one end and on the opening and closing element (305) at the other end. The second elastic element (306) is used to provide the force to drive the opening and closing element (305) to block the duckbill opening element (304).

Images