A vegetable seed uniform spreading device

Abstract

The application belongs to the technical field of seeding and discloses a vegetable seed uniform sowing device, which comprises a storage box, a pair of mounting rings are fixedly connected to the two sides of the storage box, a uniform discharging mechanism is fixedly connected at the bottom of the storage box and is communicated with a feeding pipe, and the uniform discharging mechanism is located on the storage box. The feeding pipe impacts the seeds falling from the edge in the reverse direction through the conical sleeve plate and rotates and scatters the seeds through the arc-shaped groove, so as to ensure the maximum coverage range of seeding. The middle conical material cup is preliminarily discharged through the seed distribution disc, the seeds uniformly fall into the conical material cup, and under the action of high-speed rotation, the vegetable seeds are continuously spun out to the outside and are distributed in a radial circle layer, so as to prevent the seeds from gathering at the discharge port position, improve the seeding efficiency and ensure the uniformity of seeding.

Description

Technical Field

[0001] This invention belongs to the field of sowing technology, specifically a device for uniformly spreading vegetable seeds. Background Technology

[0002] Vegetable seed planters are agricultural machines used to replace traditional manual sowing. The speed of machine sowing far exceeds that of manual sowing or spot sowing, which can greatly shorten the operation time and not delay the farming season. They are especially suitable for large-scale planting bases to cope with the tight sowing season. The sowing device needs to take out the seeds from the seed box quantitatively, evenly and accurately and put them into the seed furrow according to agronomic requirements.

[0003] A multi-functional vegetable planter, disclosed in prior art document CN109220028A, includes a frame on which multiple parallel seed boxes are mounted. Each seed box has a spaced-out seeding device connected to its lower opening. The frame also features multiple parallel seeding rakes, each equipped with a spot-seeding and perforating device. During operation, the rakes create multiple strips for row sowing. The combined row sowing and spot-seeding functions allow the planter to perform both row and spot sowing automatically. Row sowing and spot sowing improve the overall effect of vegetable sowing. At the same time, the vegetable seeder also uses an interval sowing device to achieve uniform sowing of seeds, improve sowing quality, and benefit the growth of sown vegetables. This invention has a simple structure, strong practicality, and is easy to use and promote. Although the above-mentioned device uses an interval sowing device to evenly sow seeds, it mainly completes interval sowing by the horizontal reciprocating motion of a movable plate. The sowing spacing in this method depends on the displacement of the movable plate. Therefore, the sowing efficiency is low in the case of high-density vegetable planting, and it is not suitable for large-area uniform sowing of vegetable seeds. Summary of the Invention

[0004] To address the problem mentioned in the background art that the spacing of traditional sowing methods depends on the displacement of the moving plate, resulting in low sowing efficiency in high-density vegetable planting, the present invention provides a vegetable seed uniform sowing device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vegetable seed uniform spreading device, comprising a storage box, wherein a pair of mounting rings are fixedly connected to both sides of the storage box, and further comprising:

[0006] A uniform feeding mechanism is located on a storage bin and has a feeding port fixedly connected to its bottom.

[0007] A rapid dispersion mechanism, which is connected to a uniform feeding mechanism;

[0008] The uniform feeding mechanism distributes the vegetable seeds in the storage box evenly, and then the rapid dispersion mechanism spreads the seeds outward. When sowing, the sorted vegetable seeds are put into the storage box, and then the machine moves in the field. The uniform feeding mechanism and the rapid dispersion mechanism at the bottom of the storage box work together to spread the seeds evenly.

[0009] The uniform feeding mechanism includes a concave shell fixedly connected to the lower inner cavity of the storage box. A V-shaped top is fixed to the top of the concave shell. A motor is fixed to the inner cavity of the concave shell. The output end of the motor passes through the concave shell and is fixed to a rotating rod. The bottom of the rotating rod extends out of the feeding port. A sleeve is fitted onto the upper end of the rotating rod. The inner cavity of the sleeve has a reciprocating threaded groove. A support sleeve is fixed to the bottom of the sleeve. An arc-shaped panel is fixed to the bottom of the support sleeve. Both the support sleeve and the arc-shaped panel are slidably fitted onto the outer wall of the rotating rod. The arc-shaped panel's arc design ensures that each downward press pushes seeds that might accumulate in the central dead corner towards the active scattering area, reducing the probability of mechanical damage to the seeds. Simultaneously, its reciprocating motion generates periodicity in the seed flow. Pressure fluctuations further enhance seed dispersion and flow, working in conjunction with the vibration of the seed distribution disc to ensure continuous and stable uniform sowing. The A-frame design prevents seeds from falling into the concave shell top of the storage bin, thus avoiding insufficient sowing. The outer wall of the sleeve is fixedly connected to the seed distribution disc, which is slidably connected to the inner cavity of the dispensing pipe. Starting the motor drives the rotating rod to rotate, which in turn drives the spherical slider to rotate synchronously, thus pressing it into the reciprocating threaded groove of the sleeve. This pressing force causes the sleeve to reciprocate up and down, which in turn drives the outer seed distribution disc to move synchronously up and down. This reciprocating movement of the seed distribution disc causes the seeds to slightly collide, increasing the distance between seeds and effectively preventing material blockage.

[0010] The rapid dispersion mechanism includes a conical material cup fixed to the bottom of a rotating rod. The outer wall of the conical material cup has several evenly spaced discharge holes. When the sleeve moves up and down, it also drives the bottom support sleeve and the arc-shaped plate to move synchronously up and down. The arc-shaped plate's design squeezes any seeds that may remain at the center of the bottom of the conical material cup to the edge for discharge. It also helps to clear blockages during dense feeding, ensuring continuous and stable operation of the device. A ring block is fixed to the top of the conical material cup, and the diameter of the ring block is smaller than the diameter of the feeding pipe opening. Because the ring block is fixed to the top of the conical material cup, and its diameter is smaller than the diameter of the feeding pipe opening, seeds falling from the edge of the feeding pipe opening can directly fall into the conical sleeve plate. A conical sleeve plate is fixed to the outer wall of the ring block. The outer wall of the sleeve plate has several arc-shaped grooves at equal intervals. Through the arc-shaped grooves on the conical sleeve plate, the seeds can be rotated to a farther distance, avoiding overlap with the seeds scattered by the conical cup. The conical sleeve plate and its arc-shaped grooves form an auxiliary throwing channel, diverting some seeds and guiding them to fly out at different initial velocities and angles. This not only expands the sowing range of a single storage box, but also makes the seed density more balanced in both the longitudinal and transverse directions, effectively avoiding the annular high-density sowing area that may be caused by a single rotating disc. Since multiple storage boxes are usually arranged and distributed on the seeder for feeding, there will be overlapping parts between adjacent storage boxes in the case of diffusion sowing. This can compensate for the overly dispersed sowing and further increase the uniformity of seed distribution.

[0011] Preferably, the rotating rod is slidably connected to the reciprocating threaded groove via a spherical slider.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] This invention utilizes a combination of a conical sleeve plate and a conical feeding cup. The seed dispensing nozzle, through the conical sleeve plate, reverses the impact of seeds falling from the edge and disperses them using an arc-shaped groove, ensuring maximum coverage. Because a ring block is fixed to the top of the conical feeding cup, with a diameter smaller than the dispensing nozzle, seeds falling directly from the edge of the nozzle can land directly on the conical sleeve plate. The arc-shaped groove on the conical sleeve plate allows the seeds to be rotated further out, preventing overlap with seeds dispersed in the conical feeding cup. After initial feeding by the seed distribution disc, seeds fall evenly into the central conical feeding cup. Under high-speed rotation, the vegetable seeds are continuously rotated outwards, forming radial concentric layers, preventing them from accumulating at the outlet. This improves sowing efficiency while ensuring uniform sowing. This invention utilizes a combination of a seed distribution disc, a spherical slider, and an arc-shaped panel. The seed distribution disc first distributes seeds evenly, while the spherical slider presses them into the reciprocating threaded groove of the sleeve. This causes the seed distribution disc to move up and down, resulting in slight collisions between the seeds and increasing the distance between them, effectively preventing clogging. Furthermore, the up-and-down movement of the sleeve also drives the bottom support sleeve and the arc-shaped panel to move up and down synchronously. The arc-shaped panel's curved surface design can squeeze any seeds that may remain at the center of the conical material cup to the edge for discharge. It also helps to clear blockages during dense feeding, ensuring the continuous and stable operation of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a side view of the structure of the present invention;

[0016] Figure 3 This is a schematic diagram showing the structural fit between the seed distribution tray and the seed delivery nozzle of the present invention;

[0017] Figure 4 This is a schematic diagram showing the structural fit between the rotating rod and the tapered material cup of the present invention;

[0018] Figure 5 This is a schematic diagram showing the structural fit between the concave shell and the storage box of the present invention;

[0019] Figure 6 For the present invention Figure 5 A magnified view of the structure at point A in the middle;

[0020] Figure 7 This is a schematic diagram showing the structural fit between the arc-shaped groove and the conical sleeve plate of the present invention;

[0021] Figure 8 This is a schematic diagram showing the structural fit between the ring block and the conical material cup of the present invention;

[0022] Figure 9This is a schematic diagram showing the structural fit between the sleeve and the support sleeve of the present invention.

[0023] In the diagram: 1. Storage bin; 2. Feeding port; 3. Mounting ring; 4. Uniform feeding mechanism; 401. Motor; 402. Concave shell; 403. A-frame top; 404. Rotating rod; 405. Seed distribution disc; 406. Sleeve; 407. Support sleeve; 408. Arc panel; 409. Reciprocating threaded groove; 4010. Spherical slider; 5. Rapid dispersion mechanism; 501. Conical sleeve; 502. Discharge hole; 503. Arc groove; 504. Conical material cup; 505. Ring block. Detailed Implementation

[0024] 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.

[0025] like Figures 1 to 9 As shown, the present invention provides a vegetable seed uniform spreading device, including a storage box 1, a pair of mounting rings 3 fixedly connected to both sides of the storage box 1, and further including:

[0026] A uniform feeding mechanism 4 is located on the storage box 1; and a feeding pipe 2 is fixedly connected to the bottom of the uniform feeding mechanism 4.

[0027] Rapid dispersion mechanism 5 is connected to uniform feeding mechanism 4;

[0028] Among them, the uniform feeding mechanism 4 evenly distributes the vegetable seeds in the storage box 1, and then the rapid dispersion mechanism 5 spreads the seeds outward.

[0029] The above scheme involves a storage bin 1 that stores the vegetable seeds to be sown. Its bottom is connected to a uniform feeding mechanism 4 to ensure the seeds flow smoothly into the feeding mechanism. A pair of mounting rings 3 are fixed to both sides of the storage bin 1, forming the mounting base for the entire device. These two rings allow the entire sowing device to be suspended or fixed to the seeder frame, enabling it to move with the machine in the field and complete one or more rows of sowing. The dispensing nozzle 2 is the outlet of the uniform feeding mechanism 4 and also the channel for the seeds to enter the rapid dispersion mechanism 5. During sowing, the sorted vegetable seeds are placed into the storage bin 1. Then, the machine moves in the field, and the seeds are evenly sown through the cooperation of the uniform feeding mechanism 4 and the rapid dispersion mechanism 5 at the bottom of the storage bin 1.

[0030] like Figures 4 to 6As shown, the uniform feeding mechanism 4 includes an inner concave shell 402 fixedly connected to the inner cavity of the lower end of the storage box 1. A herringbone top 403 is fixedly connected to the top of the inner concave shell 402. An electric motor 401 is fixedly connected to the inner cavity of the inner concave shell 402. The output end of the electric motor 401 passes through the inner concave shell 402 and is fixedly connected to a rotating rod 404. The bottom of the rotating rod 404 extends out of the feeding port 2. A sleeve 406 is sleeved on the upper end of the rotating rod 404. A reciprocating threaded groove 409 is opened in the inner cavity of the sleeve 406. A support sleeve 407 is fixedly connected to the bottom of the sleeve 406. An arc panel 408 is fixedly connected to the bottom of the support sleeve 407. Both the support sleeve 407 and the arc panel 408 are slidably sleeved on the outer wall of the rotating rod 404. A seed distribution disc 405 is fixedly connected to the outer wall of the sleeve 406. The outer wall of the seed distribution disc 405 is slidably connected to the inner cavity of the feeding port 2.

[0031] like Figure 4 and Figure 8 As shown, the rapid dispersion mechanism 5 includes a conical material cup 504 fixed to the bottom of the rotating rod 404. The outer wall of the conical material cup 504 is evenly provided with a plurality of discharge holes 502. A ring block 505 is fixed to the top of the conical material cup 504. The diameter of the ring block 505 is smaller than the diameter of the inlet 2. A conical sleeve plate 501 is fixed to the outer wall of the ring block 505. A plurality of arc-shaped grooves 503 are equidistantly provided on the outer wall of the conical sleeve plate 501.

[0032] Using the above scheme: After initial feeding by the seed tray 405, the seeds fall evenly into the conical feed cup 504. Under high-speed rotation, the vegetable seeds are continuously rotated outwards, increasing the seed sowing rate and expanding the sowing range. Through centrifugal throwing, the high-speed rotation of the conical feed cup 504 imparts a certain tangential velocity to the seeds. Under the action of centrifugal force, the seeds move along its inclined surface to the edge and are then horizontally thrown out. At the same time, seeds falling from the edge of the dispensing pipe 2 can directly fall onto the conical sleeve 501. Through the arc groove 503 on the conical sleeve 501, the seeds can be rotated out further, avoiding overlap with the seeds scattered by the conical feed cup 504. The conical sleeve 501 and its arc groove 503 constitute an auxiliary throwing channel, diverting a portion of the seeds and guiding them to fly out at different initial velocities and angles. This not only expands the sowing range of a single storage box 1 but also makes the seed density more balanced in both the longitudinal and transverse directions, effectively avoiding the annular high-density sowing area that may be caused by a single rotating disc. Seeders typically have multiple feed bins 1 arranged in a row for dispensing seeds. Therefore, in diffuse seeding, there will be overlapping areas between adjacent feed bins 1. This compensates for overly dispersed seeding and further increases the uniformity of seed distribution. The horizontal parallel arrangement of multiple seeding units is the foundation for achieving large-area uniform seeding. The seeding width of each unit can be set according to actual conditions, with a certain overlap with the seeding width of adjacent units. This effectively offsets the uneven seeding that may be caused by machine movement vibrations, uneven ground, or wind interference, laying the foundation for balanced crop growth and high and stable yields, and improving the quality and efficiency of seeding operations.

[0033] like Figure 6 As shown, the rotating rod 404 is slidably connected to the reciprocating threaded groove 409 via the spherical slider 4010.

[0034] The above scheme employs the following method: When the rotating rod 404 rotates, it drives the spherical slider 4010 to rotate synchronously, thereby pressing it into the reciprocating threaded groove 409 of the sleeve 406. The pressing force causes the sleeve 406 to reciprocate up and down, which in turn drives the outer seed distribution disc 405 to move synchronously up and down. Since the surface of the seed distribution disc 405 has multiple evenly distributed holes and grooves, the vegetable seeds in the storage bin 1 can be evenly distributed. Furthermore, the reciprocating movement of the seed distribution disc 405 causes slight collisions between the seeds, increasing the distance between them and effectively preventing clogging. The reciprocating motion of the seed distribution disc 405 not only achieves intermittent quantitative seed distribution, but its high-frequency vibration also simulates the shaking action during manual sowing, ensuring the seeds fall. Simultaneously, the vegetable seeds in the storage bin 1 are sorted, and the hole and groove dimensions of the seed distribution disc 405 match the geometric dimensions of the target seeds. This ensures controllable seeding quantity per batch and avoids the risk of seeds getting stuck in the holes and grooves, achieving precise matching between sowing quantity and sowing frequency. The curved design of the 408 panel ensures that each downward pressure pushes seeds that might accumulate in the central dead corner towards the active scattering area, reducing the probability of mechanical damage to the seeds. At the same time, its reciprocating motion generates periodic pressure fluctuations in the seed flow, further enhancing the dispersion and flow of the seeds.

[0035] Working principle and usage process of this invention:

[0036] First, when the seeder sows, the sorted vegetable seeds are placed into the storage bin 1. Then, the machine moves in the field, evenly scattering the seeds through the storage bin 1. The motor 401 is started first, driving the rotating rod 404 to rotate. As the rotating rod 404 rotates, it drives the spherical slider 4010 to rotate synchronously, thus pressing the seeds into the reciprocating threaded groove 409 of the sleeve 406. This pressing force causes the sleeve 406 to reciprocate up and down, which in turn drives the outer seed distribution disc 405 to move synchronously up and down. Because the surface of the seed distribution disc 405 has multiple evenly distributed holes and grooves, the vegetable seeds in the storage bin 1 can be evenly distributed. Furthermore, the up-and-down movement of the seed distribution disc 405 causes the seeds to slightly collide, increasing the distance between the seeds and effectively preventing clogging. The reciprocating motion of the seed distribution disc 405 not only achieves intermittent quantitative seed distribution, but its high-frequency vibration also simulates the shaking action during manual sowing, ensuring the seeds fall properly. Meanwhile, the vegetable seeds in storage bin 1 are sorted, and the size of the slots in the seed tray 405 matches the geometric dimensions of the target seeds. This ensures controllable seeding quantity per batch and avoids the risk of seeds getting stuck in the slots, achieving precise matching between seeding quantity and seeding frequency.

[0037] Secondly, when the sleeve 406 moves up and down, it also drives the bottom support sleeve 407 and the arc panel 408 to move up and down synchronously. Through the arc surface design of the arc panel 408, seeds that may remain at the center of the bottom of the conical cloth cup 504 can be squeezed to the edge and discharged, reducing the probability of mechanical damage to the seeds. At the same time, its reciprocating motion generates periodic pressure fluctuations in the seed flow, further promoting the dispersion and flow of the seeds. This, in conjunction with the vibration of the seed distribution disc 405, ensures the continuous and stable operation of uniform sowing.

[0038] Finally, during the rotation of the rotating rod 404, the conical seed cup 504 and the ring block 505 can be rotated synchronously. After the initial feeding by the seed tray 405, the seeds fall evenly into the conical seed cup 504. Under the action of high-speed rotation, the vegetable seeds can be continuously rotated outwards, increasing the seed sowing rate and spreading the sowing range. At the same time, since the ring block 505 is fixed to the top of the conical seed cup 504, and the diameter of the ring block 505 is smaller than the diameter of the feeding pipe 2, the seeds falling from the edge of the feeding pipe 2 can fall directly onto the conical sleeve plate 501. Through the arc groove 503 on the conical sleeve plate 501, the seeds can be rotated out further away, avoiding overlap with the seeds scattered by the conical seed cup 504. The conical sleeve 501 and its arc-shaped groove 503 form an auxiliary spraying channel, diverting a portion of the seeds and guiding them to fly out at different initial velocities and angles. This not only expands the sowing range of a single storage bin 1 but also makes the seed density more balanced in both the longitudinal and transverse directions, effectively avoiding the annular high-density sowing area that might be caused by a single rotating disc. Since multiple storage bins 1 are typically arranged and distributed on the seeder for dispensing, there will be overlapping sowing areas between adjacent storage bins 1 in the case of diffusion sowing. This compensates for overly dispersed sowing and further increases the uniformity of seed distribution.

[0039] 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. 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 variations 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 vegetable seed uniform spreading device, comprising a storage box (1), wherein a pair of mounting rings (3) are fixedly connected to both sides of the storage box (1), characterized in that: Also includes: A uniform feeding mechanism (4) is located on the storage box (1); and the bottom is fixedly connected to the feeding port (2). A rapid dispersion mechanism (5) is connected to a uniform feeding mechanism (4); The uniform feeding mechanism (4) uniformly distributes the vegetable seeds in the storage box (1), and then the rapid dispersing mechanism (5) spreads the seeds outward. The uniform feeding mechanism (4) includes a concave shell (402) fixedly connected to the inner cavity of the lower end of the storage box (1). A gable top (403) is fixedly connected to the top of the concave shell (402). A motor (401) is fixedly connected to the inner cavity of the concave shell (402). The output end of the motor (401) passes through the concave shell (402) and is fixedly connected to a rotating rod (404). The bottom of the rotating rod (404) extends out of the feeding port (2). A sleeve (4) is sleeved on the upper end of the rotating rod (404). 06), the inner cavity of the sleeve (406) is provided with a reciprocating threaded groove (409), the bottom of the sleeve (406) is fixedly connected to a support sleeve (407), the bottom of the support sleeve (407) is fixedly connected to an arc panel (408), the support sleeve (407) and the arc panel (408) are both slidably sleeved on the outer wall of the rotating rod (404), the outer wall of the sleeve (406) is fixedly connected to a seed distribution disc (405), and the outer wall of the seed distribution disc (405) is slidably connected to the inner cavity of the delivery port (2); The rapid dispersion mechanism (5) includes a conical material cup (504) fixed to the bottom of the rotating rod (404). The outer wall of the conical material cup (504) is evenly provided with a plurality of discharge holes (502). The top of the conical material cup (504) is fixed with a ring block (505). The diameter of the ring block (505) is smaller than the diameter of the inlet pipe (2). The outer wall of the ring block (505) is fixed with a conical sleeve plate (501). The outer wall of the conical sleeve plate (501) is provided with a plurality of arc-shaped grooves (503) at equal intervals.

2. The vegetable seed uniform spreading device according to claim 1, characterized in that: The rotating rod (404) is slidably connected to the reciprocating threaded groove (409) via a spherical slider (4010).

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