Wheel type precise seed-metering device

By designing a wheeled precision seed metering device, the problems of needing to dig holes in advance and the difficulty of adjusting the output amount in corn planting have been solved, realizing automatic soil removal and precision seeding, thus improving planting efficiency and flexibility.

CN224124628UActive Publication Date: 2026-04-17HENAN RONGLILAI SMART AGRI DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN RONGLILAI SMART AGRI DEV CO LTD
Filing Date
2025-04-02
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The current corn planting method requires digging pits in advance and then planting the seeds, which is inefficient and makes it difficult to adjust the output.

Method used

A wheel-type precision seed metering device was designed, comprising a fixed support, a seed metering disc, and a hopper. The seed metering disc has a seed metering chamber in the middle, and the discharge hole is set correspondingly to the outer side of the support disc frame. The lower end of the hopper is connected to the discharge chamber, and there is a baffle in the discharge chamber to adjust the discharge amount. Combined with the seeding component, which consists of a hole-digging plate, a connecting plate, and a seed metering plate, it realizes automatic soil removal and precision seeding.

Benefits of technology

It enables automatic cyclic sowing and adjustment of output, improving corn planting efficiency and enhancing the precision and flexibility of sowing.

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Abstract

The utility model discloses a wheel type precise seed-metering device which comprises a fixed support connected with an external seeding vehicle, a seed-metering disc and a hopper, a seed-metering cavity is formed in the middle of the seed-metering disc, and the seed-metering cavity is communicated with discharging holes formed in the outer side of a supporting disc frame at equal angles. The discharging holes are in one-to-one correspondence with the seeding assemblies arranged on the outer side of the supporting disc frame, the lower end of the hopper is fixedly connected with a discharging cavity, and the middle of the discharging cavity is telescopically connected with a baffle used for adjusting the discharging amount. According to the wheel type precise seed-metering device, soil is shoveled through the hole digging plate, then corn in the seed-metering cavity is discharged outwards through the discharging hole and is conveyed outwards through the connecting plate and the seed-metering plate for precise circulating seeding, and the corn stored in the hopper enters the seed-metering cavity through the discharging cavity and the discharging pipe and is telescopically connected into the discharging cavity in combination with the baffle; and the size of an opening of the discharging cavity can be adjusted, so that the discharging amount of corn can be adjusted.
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Description

Technical Field

[0001] This utility model relates to the technical field of corn planting, specifically a wheel-type precision seed metering device. Background Technology

[0002] Corn is an important food crop and a vital feed source for animal husbandry, aquaculture, and aquaculture. As an important food crop, corn is a health-promoting coarse grain, and moderate consumption of corn is beneficial to human health. During the corn planting process, a seed metering device can be used to plant corn seeds.

[0003] For example, announcement number CN209314266U discloses a corn seed metering device. It is manually operated, requiring no power equipment for dragging or electricity, making it flexible and convenient for use in mountainous areas and small-scale applications. The seed storage device has a movable handle, and a movable plate is located at the bottom of the cylinder. The movable handle and the movable plate are connected by a connecting cable. During use, the movable plate can be rotated to open the feeding port without bending over. A conical nozzle is located at the bottom of the cylinder, and a foot pedal is located on the cylinder body. The conical nozzle can be easily inserted into the soil. A seed selection tray is connected inside the seed metering disc, and the seed selection tray has multiple seed slots, allowing for seed collection in one plot.

[0004] However, before seeding, it is necessary to dig a pit in advance and then seed, which is less efficient overall and makes it inconvenient to adjust the output of corn seeding. For example, the comparative patents listed above have this problem.

[0005] To address these issues, we propose a wheel-type precision seed metering device. Utility Model Content

[0006] The purpose of this invention is to provide a wheel-type precision seed metering device to solve the problems mentioned in the background art, which require digging pits in advance before seeding, resulting in low overall efficiency and inconvenience in adjusting the output of corn seeding.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wheeled precision seed metering device, comprising a fixed bracket, a seed metering disc, and a hopper connected to an external seeding vehicle;

[0008] Also includes:

[0009] The seed metering tray has a seed metering cavity in the middle, and the seed metering cavity is connected to the discharge hole that is opened at an equal angle on the outside of the support tray frame. Moreover, the discharge hole is set in a one-to-one correspondence with the sowing component set on the outside of the support tray frame.

[0010] The lower end of the hopper is fixedly connected to a discharge chamber, and the middle part of the discharge chamber is telescopically connected to a baffle for adjusting the discharge amount.

[0011] As a preferred embodiment of this utility model, the seed metering disc is rotatably connected to both its front and rear ends with a support disc frame, and the support disc frame is fixedly connected to the middle of the fixed bracket.

[0012] By adopting the above technical solution, the seed metering tray is rotatably connected to the front and rear ends of the tray, and the tray is fixedly connected to the middle of the fixed bracket. During the movement of the seed metering tray, the tray rotates within the tray, achieving the effect of cyclic sowing.

[0013] As a preferred embodiment of this utility model, the seeding assembly consists of a digging plate fixed to the outer side of the seed metering tray for shoveling soil, a connecting plate fixedly connected to the near end of the digging plate, and a seed metering plate fixed in the middle of the connecting plate and in an inclined shape.

[0014] Using the above technical solution, the seeding assembly consists of a hole-digging plate fixed to the outer side of the seed metering tray for shoveling soil, a connecting plate fixedly connected to the near end of the hole-digging plate, and a seed metering plate fixed in the middle of the connecting plate and in an inclined shape, which enables cyclic seeding after shoveling soil.

[0015] As a preferred embodiment of this utility model, the seed metering plate is disposed on the outside of the discharge hole.

[0016] Using the above technical solution, the seed metering plate is set outside the discharge hole. After the corn is discharged through the discharge hole, it enters the dug hole through the inclined seed metering plate.

[0017] As a preferred embodiment of this utility model, both the left and right ends of the hopper are fixedly connected to fixed columns for support, and the fixed columns are fixedly connected to the front side of the upper end of the fixed bracket.

[0018] With the above technical solution, fixed columns for support are fixedly connected to both the left and right ends of the hopper, and the fixed columns are fixedly connected to the front side of the upper end of the fixed bracket, which facilitates the support of the hopper.

[0019] As a preferred embodiment of this utility model, the hopper is connected to the seed dispensing chamber inside the seed dispensing disc via a discharge chamber and a discharge pipe.

[0020] Using the above technical solution, the hopper is connected to the seed dispensing chamber inside the seed dispensing tray through the discharge chamber and discharge pipe, and the corn in the hopper can enter the seed dispensing chamber through the discharge chamber and discharge pipe.

[0021] As a preferred embodiment of this utility model, the front end of the discharge chamber is threadedly connected to a fixing bolt for limiting the position, and the upper end of the fixing bolt is threadedly connected to a screw hole at the corresponding position of the lower end of the baffle.

[0022] Using the above technical solution, a fixing bolt for limiting is connected to the front end of the discharge chamber, and the upper end of the fixing bolt is threaded into the screw hole at the corresponding position of the lower end of the baffle, which facilitates limiting the distance between the discharge chamber and the baffle.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows: The wheel-type precision seed metering device consists of a digging plate, a connecting plate, and a seed metering plate. While rotating, the digging plate scoops soil, and then the corn in the seed metering chamber is discharged outward through the discharge hole. The connecting plate and the seed metering plate then transport the corn outward for precision cyclic seeding. Moreover, the corn stored in the hopper enters the seed metering chamber through the discharge chamber and the discharge pipe. Combined with the baffle telescopic connection in the discharge chamber, the opening size of the discharge chamber can be adjusted, thereby adjusting the amount of corn discharged.

[0024] 1. It is equipped with a seed metering tray, a seed metering chamber and a discharge hole. As the seed metering tray rotates in the support tray frame, the corn stored in the seed metering chamber is discharged out through the discharge hole. The discharge hole is set at an angle on the outside of the seed metering tray, which facilitates automatic cyclic sowing of corn.

[0025] 2. It is equipped with a sowing component, which consists of a hole-digging plate, a connecting plate and a seed metering plate. After the soil is scooped by the hole-digging plate, the corn is discharged outward through the connecting plate and the seed metering plate into the scooped holes for precise seeding.

[0026] 3. It is equipped with a discharge chamber and a baffle. The hopper is connected to the seed dispensing chamber through the baffle. The baffle can extend and retract in the discharge chamber to adjust the opening size of the discharge chamber, thereby facilitating the adjustment of the discharge amount of corn. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0029] Figure 3 This is a bottom view of the seed metering tray, support tray frame, and perforation plate of this utility model;

[0030] Figure 4 This is an exploded structural diagram of the seed metering disc, support disc frame, and seed metering chamber of this utility model;

[0031] Figure 5 This is a schematic diagram of the seeding component structure of this utility model;

[0032] Figure 6 This is an exploded view of the discharge chamber and baffle of this utility model.

[0033] In the diagram: 1. Fixed bracket; 2. Seed metering tray; 3. Support tray frame; 4. Seed metering chamber; 5. Discharge hole; 6. Hole plate; 7. Connecting plate; 8. Seed metering plate; 9. Hopper; 10. Fixed column; 11. Discharge chamber; 12. Discharge pipe; 13. Baffle; 14. Fixing bolt. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figures 1-6 .

[0036] To address the problems of existing technologies that require pre-digging pits before seeding, resulting in low overall efficiency and difficulty in adjusting the output of corn seeding, this solution proposes a wheeled precision seed metering device. This device includes a fixed support 1 connected to an external seeding vehicle, a seed metering disc 2, and a hopper 9. The seed metering disc 2 has a seeding cavity 4 in the middle, and the discharge holes 5 correspond one-to-one with the seeding components located on the outside of the support disc 3. The lower end of the hopper 9 is fixedly connected to a discharge cavity 11, and the middle of the discharge cavity 11 is connected to a baffle 13 for adjusting the output.

[0037] like Figure 1 , Figure 2 and Figure 6 As shown, the fixed bracket 1 is connected to the external sowing mobile vehicle. The front end of the fixed bracket 1 is fixedly connected to the fixed column 10, and the upper end of the fixed column 10 is fixedly connected to the hopper 9. First, an appropriate amount of corn is added to the hopper 9. The lower end of the hopper 9 is fixedly connected to the discharge chamber 11. At the same time, the lower end of the discharge chamber 11 is connected to the seed dispensing chamber 4 located in the middle of the seed dispensing tray 2 through the discharge pipe 12. Moreover, the middle part of the discharge chamber 11 is connected to the baffle 13. According to the sowing needs, the baffle 13 can be pulled to move the baffle 13 in the discharge chamber 11, thereby adjusting the size of the opening in the middle of the discharge chamber 11. Then, the baffle 13 and the discharge chamber 11 are limited by rotating the fixing bolt 14. At this time, the corn stored in the hopper 9 enters the seed dispensing chamber 4 through the discharge chamber 11 and the discharge pipe 12.

[0038] Next, the entire seed metering device is moved by an external seeding vehicle. The seeding assembly consists of a digging plate 6 fixed to the outer side of the seed metering disc 2 for shoveling soil, a connecting plate 7 fixedly connected to the near end of the digging plate 6, and a seed metering plate 8 fixed in the middle of the connecting plate 7 and inclined. When the fixed support 1 moves, the digging plate 6 can shovel the soil to create holes for seeding. The seed metering chamber 4 is connected to the discharge hole 5 opened at an equal angle on the outside of the support plate 3. Under gravity, the corn in the seed metering chamber 4 is always at the bottom of the seed metering chamber 4. As the seed metering disc 2 rotates in the support plate 3, the digging plate 6 circulates and shovels soil. After shoveling, the corn in the seed metering chamber 4 falls down into the hole through the discharge hole 5 along the seed metering plate 8 in the middle of the connecting plate 7 for automatic and precise seeding. It is very convenient to use.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wheeled precision seed metering device, comprising a fixed bracket (1) connected to an external seeding vehicle, a seed metering disc (2) and a hopper (9); characterized in that Also includes: The seed metering tray (2) has a seed metering cavity (4) in the middle, and the seed metering cavity (4) is connected to the discharge hole (5) which is opened at an equal angle on the outside of the support tray frame (3). Moreover, the discharge hole (5) is set in a one-to-one correspondence with the seeding component set on the outside of the support tray frame (3). The lower end of the hopper (9) is fixedly connected to the discharge chamber (11), and the middle part of the discharge chamber (11) is telescopically connected to a baffle (13) for adjusting the discharge amount.

2. A precision seed metering wheel according to claim 1, wherein: The seeding tray (2) is rotatably connected to a support tray frame (3) at both the front and rear ends, and the support tray frame (3) is fixedly connected to the middle of the fixed bracket (1).

3. A precision seed metering wheel according to claim 2, wherein: The seeding assembly consists of a hole-digging plate (6) fixed to the outer side of the seed metering tray (2) for shoveling soil, a connecting plate (7) fixedly connected to the near end of the hole-digging plate (6), and a seed metering plate (8) fixed in the middle of the connecting plate (7) and inclined.

4. A precision seed metering wheel according to claim 3, wherein: The seed metering plate (8) is located on the outside of the discharge hole (5).

5. The precision seed metering wheel of claim 1, wherein: The hopper (9) is fixedly connected to fixed columns (10) for support at both the left and right ends, and the fixed columns (10) are fixedly connected to the front side of the upper end of the fixed bracket (1).

6. A wheel-type precision seed metering device according to claim 5, characterized in that: The hopper (9) is connected to the seed dispensing chamber (4) inside the seed dispensing tray (2) through the discharge chamber (11) and the discharge pipe (12).

7. A precision seed metering wheel according to claim 6, wherein: The front end of the discharge chamber (11) is threadedly connected to a fixing bolt (14) for limiting the position, and the upper end of the fixing bolt (14) is threadedly connected to the screw hole at the corresponding position of the lower end of the baffle (13).

Citation Information

Patent Citations

  • Corn seed-metering device

    CN209314266U