Quantitative rice seeding equipment
By designing a rice quantitative sowing device, and utilizing a servo motor-driven feeding and quantitative discharging mechanism, the problem of uneven seed distribution in traditional rice cultivation has been solved, achieving uniform and efficient seed sowing, and making it suitable for large-scale rice field cultivation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JGBIO
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-17
AI Technical Summary
In traditional rice cultivation, manual sowing can easily lead to uneven seed distribution, affecting seed growth and development and increasing seed waste.
A rice quantitative sowing device was designed, which adopts a servo motor driven feeding and quantitative discharging mechanism. Through the coordinated control of the moving plate and the fixed plate, the seed flow rate can be precisely adjusted. It is also equipped with a cleaning component and a pressure roller to ensure the soil is level.
It achieves uniform and precise seed sowing, reduces seed waste, lowers labor requirements, and improves sowing efficiency, making it particularly suitable for large-scale rice paddy cultivation.
Smart Images

Figure CN224124595U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice cultivation, and more specifically, to a quantitative rice sowing device. Background Technology
[0002] Before rice planting, seed sowing and seedling raising are required, which involves scattering seeds on seedling soil. After the seedlings are raised, they are planted. However, traditional seed sowing and raising are mostly done manually, which can easily lead to uneven seed sowing, which is not conducive to seed growth and development and can affect later planting. Therefore, a quantitative sowing device for rice planting is proposed. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a rice quantitative sowing device, including two bent and extended supports. A cleaning component for cleaning the soil is installed between the front ends of the two supports. Several sowing hoppers are arranged behind the cleaning component. A rotating feeding mechanism is installed inside the sowing hopper. A rotating quantitative dispensing mechanism is arranged at the bottom of the feeding mechanism. A driving component for driving the feeding mechanism and the quantitative dispensing mechanism to rotate is installed at the top of the sowing hopper. A connecting rod is connected to the rear of the several sowing hoppers. The two ends of the connecting rod are respectively fixed to the two supports. A pressure roller is installed between the two supports on the rear of the connecting rod.
[0004] In a preferred embodiment, the cleaning component includes a connecting shaft connected to the front ends of two supports, and a plurality of vertically downward extending cleaning rods are mounted on the bottom of the connecting shaft, with the bottom ends of the cleaning rods being needle-shaped.
[0005] In a preferred embodiment, the bottom end of the seeding hopper is provided with a funnel-shaped discharge hopper, and the quantitative discharge mechanism is located directly above the discharge hopper. The quantitative discharge mechanism includes a fixed plate fixed to the inner wall of the seeding hopper and a movable plate attached to the upper surface of the fixed plate. The fixed plate has a plurality of lower discharge holes, and the movable plate has the same number of upper discharge holes as the discharge holes.
[0006] In a preferred embodiment, the outer wall of the movable disc is in contact with the inner wall of the seeding hopper, and the inner diameter of the lower discharge hole is larger than the inner diameter of the upper discharge hole;
[0007] When the upper discharge hole rotates to be directly above the lower discharge hole, the upper and lower discharge holes are arranged in concentric circles.
[0008] In a preferred embodiment, the feeding mechanism includes a drive shaft fixed in the middle of the surface of the movable disc and a sleeve sleeved outside the drive shaft. Several equally spaced feeding rods are installed outside the sleeve. A first gear and a first bearing are sleeved outside the drive shaft. A second gear installed at the top of the inner cavity of the seeding hopper meshes with one side of the first gear.
[0009] In a preferred embodiment, a bearing ring is connected to the top of the sleeve, the bearing ring is fixed to the top of the inner cavity of the seeding hopper, the bottom of the sleeve is attached to the upper surface of the movable disc, and the inner wall of the sleeve is equipped with teeth that mesh with the second gear and several fixing rods that are connected to the first bearing.
[0010] In a preferred embodiment, the drive unit includes a servo motor mounted on the top of the seeding hopper, with the output shaft of the servo motor extending into the interior of the seeding hopper and connected to a transmission shaft.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] This utility model achieves precise adjustment of seed flow through the coordinated control of the movable and fixed discs and the cooperation of the upper and lower discharge holes, avoiding the unevenness problem of traditional manual sowing and reducing seed waste. The servo motor drives the feeding mechanism and the quantitative dispensing mechanism, which significantly reduces the manpower required and improves sowing efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the interior of the seeding hopper of this utility model;
[0015] Figure 3 This is a schematic diagram of the inside of the seeding hopper of this utility model from another angle.
[0016] Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Seeding hopper; 3. Connecting rod; 4. Pressure roller; 5. Connecting shaft; 6. Cleaning rod; 7. Discharge hopper; 8. Fixed plate; 9. Movable plate; 10. Lower discharge hole; 11. Upper discharge hole; 12. Drive shaft; 13. Sleeve; 14. Feeding rod; 15. First gear; 16. First bearing; 17. Second gear; 18. Bearing ring; 19. Tooth; 20. Fixed rod; 21. Servo motor; 22. Battery storage unit; 23. Holding rod; 24. Feed hopper. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.
[0018] like Figure 1-3The rice quantitative sowing device shown includes two bent and extended supports 1. A cleaning component for cleaning the soil is installed between the front ends of the two supports 1. Several sowing hoppers 2 are arranged behind the cleaning component. A rotating feeding mechanism is installed inside the sowing hopper 2. A rotating quantitative dispensing mechanism is arranged at the bottom of the feeding mechanism. A driving component for driving the feeding mechanism and the quantitative dispensing mechanism to rotate is installed at the top of the sowing hopper 2. A connecting rod 3 is connected to the rear of the several sowing hoppers 2. The two ends of the connecting rod 3 are respectively fixed on the two supports 1. A pressure roller 4 is installed between the two supports 1 on the rear of the connecting rod 3.
[0019] Furthermore, a gripping rod 23 for holding and operating is installed at the rear end of the support 1, and a feeding hopper 24 for putting rice seeds is installed at the top of the sowing hopper 2. In use, rice seeds are put into the inside of the sowing hopper 2 from the feeding hopper 24, and the entire device is pushed forward by the gripping rod 23. The cleaning component cleans the surface debris of the sowing soil, and the driving component drives the feeding mechanism and the quantitative discharging mechanism to rotate, so that the rice seeds are quantitatively sown into the soil from the bottom of the sowing hopper 2.
[0020] The cleaning component includes a connecting shaft 5 connected to the front end of two brackets 1. Several vertically downward extending cleaning rods 6 are installed at the bottom of the connecting shaft 5, and the bottom end of the cleaning rods 6 is set as a needle tip.
[0021] Based on the above, the cleaning component installed at the front end of the equipment consists of a connecting shaft 5 and multiple needle-shaped cleaning rods 6. When the equipment moves, the cleaning rods 6 penetrate the soil and remove surface debris, creating a flat and clean soil environment for subsequent sowing.
[0022] The bottom end of the seeding hopper 2 is provided with a funnel-shaped discharge hopper 7. The quantitative discharge mechanism is located directly above the discharge hopper 7. The quantitative discharge mechanism includes a fixed plate 8 fixed on the inner wall of the seeding hopper 2 and a movable plate 9 attached to the upper surface of the fixed plate 8. The fixed plate 8 has a plurality of lower discharge holes 10. The movable plate 9 has the same number of upper discharge holes 11 as the discharge holes. The outer wall of the movable plate 9 is attached to the inner wall of the seeding hopper 2. The inner diameter of the lower discharge holes 10 is larger than the inner diameter of the upper discharge holes 11. When the upper discharge holes 11 rotate to be directly above the lower discharge holes 10, the upper discharge holes 11 and the lower discharge holes 10 are arranged in concentric circles.
[0023] Based on the above, the fixed plate 8 is fixed on the inner wall of the sowing hopper 2, while the movable plate 9 rotates on the surface of the fixed plate 8. Both have discharge holes with different inner diameters. When the upper discharge hole 11 rotates to the top of the lower discharge hole 10, the rice seeds inside the sowing hopper 2 fall and complete the discharge. When the lower discharge hole 10 is misaligned with the upper discharge hole 11, the discharge stops. By controlling the rotation speed of the movable plate 9, the quantitative sowing of rice seeds is achieved.
[0024] Furthermore, when the movable disc 9 rotates, the alignment of the upper and lower discharge holes 10 determines the rice seed flow rate. The upper discharge hole 11 has a smaller inner diameter, while the lower discharge hole 10 has a larger inner diameter. When the two are concentric, they form a precise channel, ensuring a constant seeding rate each time.
[0025] The feeding mechanism includes a drive shaft 12 fixed in the middle of the surface of the movable disc 9 and a sleeve 13 sleeved outside the drive shaft 12. Several feeding rods 14 are evenly distributed outside the sleeve 13. A first gear 15 and a first bearing 16 are sleeved outside the drive shaft 12. A second gear 17 installed on the top of the inner cavity of the seeding hopper 2 is meshed on one side of the first gear 15.
[0026] The top end of the sleeve 13 is connected to a bearing ring 18, which is fixed to the top of the inner cavity of the seeding hopper 2. The bottom end of the sleeve 13 is attached to the upper surface of the movable disc 9. The inner wall of the sleeve 13 is equipped with teeth 19 that mesh with the second gear 17 and several fixing rods 20 that are connected to the first bearing 16.
[0027] The driving component includes a servo motor 21 installed at the top of the seeding hopper 2, and the output shaft of the servo motor 21 passes through the inside of the seeding hopper 2 and is connected to the transmission shaft 12.
[0028] Based on the above, the servo motor 21 directly drives the movable disk 9 to rotate on the surface of the fixed disk 8 through the transmission shaft 12, causing the upper discharge hole 11 and the lower discharge hole 10 to be aligned or staggered. The servo motor 21 can precisely control the speed and number of revolutions, thus controlling the alignment angle between the upper discharge hole 11 and the lower discharge hole 10, thereby controlling the flow rate of rice seed sowing.
[0029] Furthermore, during the rotation of the drive shaft 12, the first gear 15 and the second gear 17 on the outside mesh with each other. The second gear 17 meshes with the teeth 19 on the inner wall of the sleeve 13, thereby driving the sleeve 13 to rotate outside the drive shaft 12 along with the rotation of the drive shaft 12 and the movable disk 9. Due to the multi-stage transmission, there is a speed difference between the movable disk 9 and the sleeve 13. During the rice seed sowing process, the feeding rod 14 on the outside of the sleeve 13 can continuously disturb the rice seeds between the sleeve 13 and the sowing hopper 2, so as to evenly disperse the rice seeds and prevent them from piling up.
[0030] Furthermore, an energy storage unit 22 is provided on the rear side of the seeding hopper 2. The energy storage unit 22 is fixed above the connecting rod 3 to provide power support for the operation of the equipment.
[0031] The handle 23 is equipped with a control button for controlling the servo motor 21. When the user pushes the device to move forward and sow seeds, he controls the servo motor 21 on the top of the sowing hopper 2 to achieve quantitative sowing of rice seeds.
[0032] After the seeds fall into the soil through the discharge hopper 7, the pressure roller 4 behind them immediately compacts the soil, ensuring full contact between the seeds and the soil and improving the germination rate.
[0033] Based on the above, this equipment can achieve precise adjustment of seed flow through the coordinated control of the movable plate 9 and the fixed plate 8, and the cooperation of the upper and lower discharge holes 10, avoiding the unevenness problem of traditional manual sowing and reducing seed waste. The servo motor 21 drives the feeding mechanism and the quantitative discharge mechanism, which significantly reduces the manpower requirement and improves the sowing efficiency. It is especially suitable for large-scale planting in large-area paddy fields.
[0034] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A rice ration seeding apparatus characterized by comprising: It includes two bent and extended supports. A cleaning component for cleaning the soil is installed between the front ends of the two supports. Several seeding hoppers are set behind the cleaning component. A rotating feeding mechanism is installed inside the seeding hopper. A rotating quantitative dispensing mechanism is set at the bottom of the feeding mechanism. A driving component for driving the feeding mechanism and the quantitative dispensing mechanism to rotate is installed at the top of the seeding hopper. A connecting rod is connected to the rear of the seeding hoppers. The two ends of the connecting rod are fixed to the two supports respectively. A pressure roller is installed between the two supports on the rear of the connecting rod.
2. The rice ration seeding apparatus according to claim 1, characterized by: The cleaning component includes a connecting shaft connected to the front end of two supports. Several vertically downward extending cleaning rods are installed at the bottom of the connecting shaft, and the bottom ends of the cleaning rods are set with needle tips.
3. The rice ration seeding apparatus according to claim 1, characterized by: The bottom of the seeding hopper is provided with a funnel-shaped discharge hopper, and the quantitative discharge mechanism is located directly above the discharge hopper. The quantitative discharge mechanism includes a fixed plate fixed to the inner wall of the seeding hopper and a movable plate attached to the upper surface of the fixed plate. The fixed plate has a number of lower discharge holes, and the movable plate has the same number of upper discharge holes as the discharge holes.
4. The rice seed quantity sowing apparatus according to claim 3, wherein: The outer wall of the movable disc fits into the inner wall of the seeding hopper, and the inner diameter of the lower discharge hole is larger than the inner diameter of the upper discharge hole. When the upper discharge hole rotates to be directly above the lower discharge hole, the upper and lower discharge holes are arranged in concentric circles.
5. The rice seed quantity sowing apparatus according to claim 3, wherein: The feeding mechanism includes a drive shaft fixed in the middle of the surface of the movable disc and a sleeve sleeved outside the drive shaft. Several feeding rods are installed outside the sleeve at equal intervals. A first gear and a first bearing are sleeved outside the drive shaft. A second gear installed at the top of the inner cavity of the seeding hopper is meshed on one side of the first gear.
6. The rice quantitative sowing device according to claim 5, characterized in that: The top end of the sleeve is connected to a bearing ring, which is fixed to the top of the inner cavity of the seeding hopper. The bottom end of the sleeve is attached to the upper surface of the movable disc. The inner wall of the sleeve is equipped with teeth that mesh with the second gear and several fixing rods that are connected to the first bearing.
7. The rice seed quantity sowing apparatus according to claim 5, wherein: The driving component includes a servo motor mounted on the top of the seeding hopper, with the output shaft of the servo motor extending into the inside of the seeding hopper and connected to the transmission shaft.