Portable rice seeding device

By introducing a mixing system and a discharge control mechanism into the rice sowing device, the problems of seed clumping and uneven feeding have been solved, achieving uniform seed feeding and precise sowing, adapting to sowing needs under different conditions, and improving sowing quality and efficiency.

CN224290681UActive Publication Date: 2026-05-29蒋末云

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
蒋末云
Filing Date
2025-07-14
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional rice sowing devices lack an effective internal stirring mechanism, causing seeds to clump or settle inside the box, resulting in uneven feeding, which affects sowing quality and yield, and makes it difficult to adapt to different varieties and density requirements.

Method used

A mixing system and a discharge control mechanism were designed. The mixing blades and push plate prevent seeds from clumping, and the discharge amount is adjusted by using a servo motor to drive a threaded rod and a baffle. The trenching depth is adjusted by using a hydraulic rod to achieve uniform seed feeding and precise sowing.

Benefits of technology

To ensure smooth seed flow, achieve uniform sowing, adapt to different rice varieties and planting density requirements, and improve sowing efficiency and yield.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224290681U_ABST
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Abstract

The utility model relates to rice seeding technique field discloses a portable rice seeding device, including bottom plate, seed tank and oblique unloading plate, the middle part of bottom plate is provided with through groove, the lower extreme of seed tank is fixedly connected with the upper surface of bottom plate, the upper surface of seed tank is closely combined with top cover, the middle part of top cover upper surface is fixedly connected with the protection shell, the front end of protection shell inner top surface is fixedly connected with first servo motor. In the utility model, through stirring system can continuously or intermittently agitate the seed in seed tank, this can effectively prevent the seed in the box from being blocked, caking or depositing due to damp, static electricity or own characteristic, ensure that the seed can flow to the leakage plate smoothly, realizes the adjustment to seed falling speed and quantity through the discharge control mechanism, and the effective opening size of the through groove below the leakage plate can be changed by the baffle, thereby controlling the seed amount falling in unit time.
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Description

Technical Field

[0001] This utility model relates to the field of rice sowing technology, and in particular to a portable rice sowing device. Background Technology

[0002] Rice sowing is a crucial initial step in the rice cultivation process. It refers to scattering rice seeds into the field at a certain density and uniformity to lay the foundation for subsequent growth and development. This process was traditionally done manually, but with the development of agricultural technology, mechanical sowing is now widely used. The quality of sowing, including the depth, spacing, and uniformity of sowing, directly affects the germination rate of seeds, the growth of seedlings, and the final yield. Therefore, it is an important step in ensuring stable and high rice yields.

[0003] Traditional rice seeding devices typically lack an effective internal stirring mechanism. During storage or transportation, seeds may clump or stick together inside the container due to moisture, static electricity, or their own characteristics, causing blockages at the feed inlet. This requires frequent manual cleaning, which is inefficient, time-consuming, and labor-intensive. Without a stirring system, seeds tend to settle inside the container, with heavier or larger seeds sinking to the bottom and lighter or smaller seeds floating on top. Seeds may also accumulate near the container walls, making it difficult for them to flow towards the central feed inlet. This results in inconsistent seed flow during feeding, making it impossible to guarantee a continuous and uniform seed supply, affecting the uniformity of sowing. Furthermore, the seeding rate of traditional rice seeding devices is usually difficult to control. When adapting to different varieties, density requirements, or adjusting the travel speed, it is difficult to achieve flexible and precise matching, easily leading to over- or under-sparse sowing, which affects yield.

[0004] Therefore, those skilled in the art have provided a portable rice sowing device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a portable rice sowing device. The stirring system continuously or intermittently agitates the seeds in the seed box, effectively preventing clogging, clumping, or sedimentation due to moisture, static electricity, or the seeds' own characteristics. This ensures smooth flow of seeds to the sluice plate. The pusher plate design helps push the seeds from the box wall towards the center, further promoting uniform feeding. The discharge control mechanism adjusts the seed falling speed and quantity. The baffle can change the effective opening size of the channel below the sluice plate, thereby controlling the amount of seeds falling per unit time. The adjustable discharge rate allows the device to adapt to the sowing needs of different rice varieties, different planting densities, and different travel speeds.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A portable rice sowing device, comprising a base plate, a seed box, and an inclined feeding plate. A through groove is formed in the middle of the base plate. The lower end of the seed box is fixedly connected to the upper surface of the base plate. A top cover is tightly fitted to the upper surface of the seed box. A protective shell is fixedly connected to the middle of the upper surface of the top cover. A first servo motor is fixedly connected to the front end of the top surface inside the protective shell. A drive gear is fixedly connected to the output end of the first servo motor. A driven gear meshes with the outer wall gear at the rear end of the drive gear. A stirring rod is fixedly connected to the middle of the lower end of the driven gear. The lower end of the stirring rod penetrates the top cover into the seed box. Multiple stirring blades are fixedly connected to the lower end of the stirring rod. Multiple push plates are fixedly connected to the outer wall of the lower end of the stirring rod. A sluice plate is fixedly connected to the inner wall of the middle part of the lower end of the seed box. The sluice plate is located at the upper end of the through groove. Fixed blocks are fixedly connected to both sides of the middle part of the lower surface of the seed box. A second servo motor is fixedly connected to the inside of the fixed block at one front end. A threaded rod is fixedly connected to the output end of the second servo motor. Guide rods are fixedly connected to the outer walls of the adjacent ends of the fixed block on the other side. Sliding blocks are sleeved on the outer walls of the guide rods and the threaded rods. A baffle is provided inside the through groove. The outer walls of the adjacent two sides of the sliding block are fixedly connected to the middle parts of the outer walls of the baffle respectively.

[0007] The stirring system can continuously or intermittently agitate the seeds in the seed box, which can effectively prevent the seeds from clogging, clumping, or settling due to moisture, static electricity, or their own characteristics. This ensures that the seeds can flow smoothly to the sluice plate. The pusher plate design helps to push the seeds from the box wall to the center, further promoting uniform feeding. The discharge control mechanism enables the adjustment of the seed falling speed and quantity. The second servo motor drives the threaded rod to rotate, which in turn moves the sliding block and baffle back and forth. The baffle can change the effective opening size of the through groove under the sluice plate, thereby controlling the amount of seeds falling per unit time. The adjustable discharge rate allows the device to adapt to the sowing needs of different rice varieties, different planting density requirements, and different travel speeds.

[0008] Furthermore, a mounting frame is fixedly connected to the front end of the upper surface of the base plate. Hydraulic rods are fixedly connected to the lower surfaces of both sides of the front end of the mounting frame. Mounting plates are fixedly connected to the output ends of the hydraulic rods. A third servo motor is installed inside the mounting plate on the other side. A rotating rod is fixedly connected to the output end of the third servo motor. Multiple furrowing teeth are fixedly connected to the outer wall of the rotating rod. Driven by the third servo motor, the rotating rod rotates, causing the multiple furrowing teeth to rotate, automatically creating uniform sowing furrows in the soil before sowing. This is more efficient and uniform than manual furrowing or using a fixed furrow opener. The presence of the hydraulic rods allows the furrowing depth to be adjusted according to different soil conditions, rice varieties, or planting requirements. By controlling the extension and retraction of the hydraulic rods, the depth of the furrowing teeth can be easily changed to adapt to different operational needs. Sowing in the prepared furrows ensures that the seeds are placed at an appropriate depth, which is beneficial for seed germination and root growth.

[0009] Furthermore, a feeding funnel is connected through the middle of both the front and rear ends of the top surface of the top cover, and a PLC control panel is fixedly connected to the outer wall of the other side of the seed box; the feeding funnel is used to add seeds into the seed box, and the operation of the entire device is controlled by the PLC control panel.

[0010] Furthermore, brake casters are fixedly connected to the four corners of the lower surface of the base plate, a pusher is fixedly connected to the outer wall of the rear end of the base plate, and a battery plate is installed inside the front end of the base plate; the brake casters facilitate movement and positioning, the pusher facilitates manual pushing, and the battery plate provides power to the device.

[0011] Furthermore, the outer wall of the upper rear end of the inclined feeding plate is fixedly connected to the inner wall of the channel. The inclined feeding plate is located directly below the sluice plate, and multiple grooves are provided on the outer wall of the upper surface of the inclined feeding plate. This design ensures that the seeds falling from the sluice plate can be accurately guided onto the feeding plate and flow towards the field along a preset path. This precise positioning reduces the deviation of the seed scattering position, which helps to achieve more uniform sowing. The concentrated seed flow is dispersed by the grooves, which prevents the seeds from piling up during the fall. The grooves guide the seeds to leave the feeding plate in a more dispersed manner, which helps the seeds to form a certain degree of dispersion before contacting the soil.

[0012] Furthermore, the rear end of the threaded rod is rotatably connected to the outer wall of the front end of the fixed block, the inner wall of the sliding block on one side is threadedly connected to the outer wall of the threaded rod, the inner wall of the sliding block on the other side is slidably attached to the outer wall of the guide rod, and the outer wall of the sliding block is slidably attached to the inner wall of the through groove; this design makes the movement of the baffle driven by the sliding block more stable.

[0013] Furthermore, one side of the rotating rod is rotatably connected to the outer wall of the other side of the mounting plate; this design makes the rotating rod more stable when driving the grooved teeth to perform grooved operations.

[0014] Furthermore, inclined plates are fixedly connected to both sides of the inner wall of the seed box, and the lower ends of the inclined plates are tightly fitted to the upper sides of the sluice plate. The inclined plates can guide the seeds to slide down along the surface of the inclined plates, which helps the seeds to reach the sluice plate and the inclined feeding plate smoothly, and prevents the seeds from accumulating or clogging in the box.

[0015] This utility model has the following beneficial effects: The portable rice sowing device proposed in this utility model can continuously or intermittently agitate the seeds in the seed box through the stirring system. This can effectively prevent the seeds from clogging, clumping or settling in the box due to moisture, static electricity or their own characteristics, and ensure that the seeds can flow smoothly to the sluice plate. The push plate design helps to push the seeds from the box wall to the center, further promoting uniform feeding. The discharge control mechanism realizes the adjustment of the seed falling speed and quantity. The baffle can change the effective opening size of the channel below the sluice plate, thereby controlling the amount of seeds falling per unit time. The adjustable discharge volume allows the device to adapt to the sowing needs of different rice varieties, different planting density requirements and different travel speeds. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a side view of the cross-section of the present invention.

[0018] Figure 3 This is a schematic diagram showing a partial structural detail of the present invention.

[0019] Figure 4 This is a schematic diagram of the internal structure of a part of this utility model.

[0020] Figure 5 This is a partial exploded view of the structure of this utility model.

[0021] Figure 6 This is an isometric schematic diagram of a partial structure of this utility model.

[0022] Figure 7 This is an exploded view of part of the structure of this utility model.

[0023] In the diagram: 1. Base plate; 101. Braking caster wheel; 102. Hand-push frame; 103. Battery panel; 104. Through groove; 2. Seed box; 201. PLC control panel; 202. Fixing block; 203. Inclined plate; 204. Slotted plate; 3. Top cover; 301. Feed funnel; 302. Protective shell; 4. First servo motor; 401. Drive gear; 402. Driven gear; 403. Stirring rod; 404. Stirring blade; 405. Push plate; 5. Second servo motor; 501. Threaded rod; 502. Guide rod; 503. Sliding block; 504. Baffle; 6. Inclined discharge plate; 601. Slide groove; 7. Mounting frame; 701. Hydraulic rod; 702. Mounting plate; 703. Third servo motor; 704. Rotating rod; 705. Grooved teeth. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Reference Figure 3 , Figure 4 and Figure 5This utility model provides a specific embodiment: a portable rice sowing device, including a base plate 1, a seed box 2, and an inclined feeding plate 6. A through groove 104 is opened in the middle of the base plate 1. The lower end of the seed box 2 is fixedly connected to the upper surface of the base plate 1. A top cover 3 is tightly fitted to the upper surface of the seed box 2. A protective shell 302 is fixedly connected to the middle of the upper surface of the top cover 3. A first servo motor 4 is fixedly connected to the front end of the inner top surface of the protective shell 302. A drive gear 401 is fixedly connected to the output end of the first servo motor 4. A driven gear meshes with the outer wall gear at the rear end of the drive gear 401. 402. A stirring rod 403 is fixedly connected to the middle of the lower end of the driven gear 402. The lower end of the stirring rod 403 passes through the top cover 3 to the lower end of the seed box 2 and is fixedly connected to multiple stirring blades 404. Multiple push plates 405 are fixedly connected to the outer wall of the lower end of the stirring rod 403. A strainer 204 is fixedly connected to the inner wall of the middle of the lower end of the seed box 2. The strainer 204 is located at the upper end of the through groove 104. Fixing blocks 202 are fixedly connected to both sides of the middle of the lower surface of the seed box 2. A second servo motor 5 is fixedly connected inside the front-end fixing block 202 on one side. The output of the second servo motor 5... A threaded rod 501 is fixedly connected to one end of the fixed block 202, and a guide rod 502 is fixedly connected to the outer wall of the adjacent ends of the fixed block 202 on the other side. Sliding blocks 503 are fitted on the outer walls of both the guide rod 502 and the threaded rod 501. A baffle 504 is provided inside the through groove 104. The outer walls of the adjacent sides of the sliding block 503 are fixedly connected to the middle of the outer walls of the baffle 504 on both sides. The stirring system can continuously or intermittently stir the seeds in the seed box 2, which can effectively prevent the seeds from clogging, clumping or settling in the box due to moisture, static electricity or their own characteristics, and ensure that the seeds can flow smoothly to the sluice plate. The design of the push plate 405 (204) may help push the seeds from the box wall to the center, further promoting uniform feeding. The discharge control mechanism realizes the adjustment of the seed falling speed and quantity. The second servo motor 5 drives the threaded rod 501 to rotate, which drives the sliding block 503 and the baffle 504 to move back and forth. The baffle 504 can change the effective opening size of the through groove 104 below the sluice plate 204, thereby controlling the amount of seeds falling per unit time. The adjustable discharge amount allows the device to adapt to the sowing needs of different rice varieties, different planting density requirements, and different travel speeds.

[0026] Reference Figure 1 , Figure 2 and Figure 7A mounting frame 7 is fixedly connected to the front end of the upper surface of the base plate 1. Hydraulic rods 701 are fixedly connected to the lower surfaces of both sides of the front end of the mounting frame 7. Mounting plates 702 are fixedly connected to the output ends of the hydraulic rods 701. A third servo motor 703 is installed inside the mounting plate 702 on the other side. A rotating rod 704 is fixedly connected to the output end of the third servo motor 703. Multiple furrowing teeth 705 are fixedly connected to the outer wall of the rotating rod 704. The third servo motor 703 drives the rotating rod 704 to rotate, which in turn drives the multiple furrowing teeth 705 to rotate, automatically creating uniform sowing furrows in the soil before sowing. This is more efficient and uniform than manual furrowing or using a fixed furrow opener. The presence of the hydraulic rods 701 allows the furrowing depth to be adjusted according to different soil conditions, rice varieties, or planting requirements. By controlling the extension and retraction of the hydraulic rods 701, the depth of the furrowing teeth 705 can be easily changed to adapt to different operational needs. Sowing in the prepared furrows ensures that the seeds are placed at an appropriate depth, which is beneficial for seed germination and root growth.

[0027] Reference Figure 1 , Figure 2 and Figure 6The top cover 3 has a feeding funnel 301 that runs through the middle of both the front and rear ends of its upper surface. A PLC control panel 201 is fixedly connected to the outer wall of the seed box 2 on the other side. Seeds are added to the seed box 2 through the feeding funnel 301, and the operation of the entire device is controlled by the PLC control panel 201. Braked casters 101 are fixedly connected to the four corners of the lower surface of the base plate 1. A pusher 102 is fixedly connected to the outer wall of the rear end of the base plate 1. A battery plate 103 is installed inside the front end of the base plate 1. The brake casters 101 facilitate movement and positioning, and the pusher 102 facilitates movement and positioning. 102 is easy to push manually. The device is powered by a battery panel 103. The outer wall of the upper rear end of the inclined feeding plate 6 is fixedly connected to the inner wall of the channel 104. The inclined feeding plate 6 is located directly below the sluice plate 204. The outer wall of the upper surface of the inclined feeding plate 6 is provided with multiple sliding grooves 601. This design ensures that the seeds falling from the sluice plate 204 can be accurately guided onto the feeding plate and flow to the field along a preset path. This precise positioning reduces the deviation of the seed scattering position and helps to achieve more uniform sowing. The concentrated seeds are then guided through the sliding grooves 601. 01. To prevent seeds from piling up during descent, the chute 601 guides the seeds to leave the feed plate in a more dispersed manner, helping them to achieve a certain degree of dispersion before contacting the soil. The rear end of the threaded rod 501 is rotatably connected to the outer wall of the front end of the fixed block 202. The inner wall of one side of the sliding block 503 is threadedly connected to the outer wall of the threaded rod 501, while the inner wall of the other side of the sliding block 503 is slidably attached to the outer wall of the guide rod 502. The outer wall of the sliding block 503 is slidably attached to the inner wall of the through groove 104. This design allows the sliding block 503 to... The movement of the movable baffle 504 is more stable. One side of the rotating rod 704 is rotatably connected to the outer wall of the mounting plate 702 on the other side. This design makes it more stable when the rotating rod 704 drives the grooving tooth 705 to groove. Both sides of the inner wall of the seed box 2 are fixedly connected with inclined plates 203. The lower end of the inclined plate 203 is closely attached to both sides of the upper end of the sluice plate 204. The inclined plate 203 can guide the seeds to slide down along the surface of the inclined plate 203, which helps the seeds to reach the sluice plate 204 and the inclined feeding plate 6 smoothly, and prevents the seeds from accumulating or clogging in the box.

[0028] Working principle: First, the operator adds rice seeds into the seed box 2 through the feed funnel 301 on the top cover 3. The seeds first fall onto the inclined plates 203 on both sides of the seed box 2, and then slide down to the lower sluice plate 204 under the action of gravity. Next, the first servo motor 4 is started, which drives the drive gear 401 to rotate. Through gear meshing, the driven gear 402 and the stirring rod 403 rotate. The stirring blades 404 and the push plate 405 on the stirring rod 403 continuously stir the seeds in the seed box 2 to prevent the seeds from clogging or clumping, and push the seeds to flow evenly to the sluice plate 204. 4. According to the sowing requirements, the sowing amount is set or adjusted through the PLC control panel 201. The second servo motor 5 is started, which drives the threaded rod 501 to rotate, causing the sliding block 503 to move along the guide rod 502, thereby pushing the baffle 504 to move back and forth. The baffle 504 changes the effective opening size of the through groove 104 below the sprue plate 204, precisely controlling the amount of seeds falling per unit time. Before or during sowing, the third servo motor 703 is started, which drives the rotating rod 704 to rotate, causing multiple furrowing teeth 705 to rotate at high speed, opening uniform sowing furrows in the soil. The hydraulic rod 701 can adjust the furrowing depth to adapt to different soil conditions and planting requirements. The seeds fall from the sprue plate 204 and are guided by the inclined feeding plate 6. The seeds are dispersed by the chute 601 on the inclined feeding plate 6 and fall evenly into the sowing furrow opened by the furrowing teeth 705. The operator pushes the device with the pusher 102 and uses the brake casters 101 for easy movement and positioning. The battery plate 103 provides power support for the entire device to ensure that all components work properly.

Claims

1. A portable rice sowing device, comprising a base plate (1), a seed box (2), and an inclined feeding plate (6), characterized in that: A through groove (104) is provided in the middle of the base plate (1). The lower end of the seed box (2) is fixedly connected to the upper surface of the base plate (1). The upper surface of the seed box (2) is tightly fitted with a top cover (3). A protective shell (302) is fixedly connected to the middle of the upper surface of the top cover (3). A first servo motor (4) is fixedly connected to the front end of the inner top surface of the protective shell (302). A drive gear (401) is fixedly connected to the output end of the first servo motor (4). A driven gear (402) meshes with the outer wall gear at the rear end of the drive gear (401). A stirring rod (403) is fixedly connected to the middle of the lower end of the driven gear (402). The lower end of the stirring rod (403) penetrates the top cover (3) to the lower end of the seed box (2) and is fixedly connected with multiple stirring blades (404). The outer wall of the lower end of the stirring rod (403) is fixed. Multiple push plates (405) are connected. A drain plate (204) is fixedly connected to the inner wall of the lower middle part of the seed box (2). The drain plate (204) is located at the upper end of the through groove (104). Fixed blocks (202) are fixedly connected to both sides of the middle part of the lower surface of the seed box (2). A second servo motor (5) is fixedly connected inside the fixed block (202) at one front end. A threaded rod (501) is fixedly connected to the output end of the second servo motor (5). A guide rod (502) is fixedly connected to the outer wall of the adjacent two ends of the fixed block (202) on the other side. A sliding block (503) is sleeved on the outer wall of both the guide rod (502) and the threaded rod (501). A baffle (504) is provided inside the through groove (104). The outer walls of the adjacent two sides of the sliding block (503) are fixedly connected to the middle part of the outer walls of the baffle (504) respectively.

2. The portable rice sowing device according to claim 1, characterized in that: A mounting bracket (7) is fixedly connected to the front end of the upper surface of the base plate (1). Hydraulic rods (701) are fixedly connected to the lower surfaces on both sides of the front end of the mounting bracket (7). A mounting plate (702) is fixedly connected to the output end of the hydraulic rods (701). A third servo motor (703) is provided inside the mounting plate (702) on the other side. A rotating rod (704) is fixedly connected to the output end of the third servo motor (703). Multiple grooved teeth (705) are fixedly connected to the outer wall of the rotating rod (704).

3. The portable rice sowing device according to claim 1, characterized in that: The top cover (3) has a feeding funnel (301) that is connected through the middle of the front and rear ends of the upper surface, and a PLC control panel (201) is fixedly connected to the outer wall of the other side of the seed box (2).

4. The portable rice sowing device according to claim 1, characterized in that: Braking casters (101) are fixedly connected to the four corners of the lower surface of the base plate (1), a pusher (102) is fixedly connected to the outer wall of the rear end of the base plate (1), and a battery plate (103) is provided inside the front end of the base plate (1).

5. A portable rice sowing device according to claim 1, characterized in that: The outer wall of the upper rear end of the inclined feeding plate (6) is fixedly connected to the inner wall of the through groove (104). The inclined feeding plate (6) is located at the lower end of the sprue plate (204). Multiple sliding grooves (601) are provided on the outer wall of the upper surface of the inclined feeding plate (6).

6. A portable rice sowing device according to claim 1, characterized in that: The rear end of the threaded rod (501) on one side is rotatably connected to the outer wall of the front end of the fixed block (202). The inner wall of the sliding block (503) on one side is threadedly connected to the outer wall of the threaded rod (501). The inner wall of the sliding block (503) on the other side is slidably attached to the outer wall of the guide rod (502). The outer wall of the sliding block (503) is slidably attached to the inner wall of the through groove (104).

7. A portable rice sowing device according to claim 2, characterized in that: One side of the rotating rod (704) is rotatably connected to the outer wall of the other side of the mounting plate (702).

8. A portable rice sowing device according to claim 1, characterized in that: Both sides of the inner wall of the seed box (2) are fixedly connected with inclined plates (203), and the lower ends of the inclined plates (203) are closely fitted with the upper ends of the sprue plate (204).