Shaft pivot type sub-tray handheld seeding machine

Abstract

The utility model discloses a shaft pivot type sub-tray handheld seeding machine, which comprises a rotary feeding bin pivoted on a middle shaft, and adopts the technical scheme that a sub-tray is arranged on the middle shaft and is used for synchronously rotating with the feeding bin to allocate sub-materials falling from a discharging hopper; a rotating space for accommodating the sub-trays is formed in the central part of the distributing tray, and a distributing bin is formed in a gap between the distributing tray and the sub-trays and is used for throwing the sub-trays into the feeding bin one by one; and the gland is arranged at the opening of the rotating space of the material distributing disc and is used for restraining the sub-material disc to be separated from the rotating space. The utility model has the advantages of simple structure, convenience in use and long service life.

Description

Technical Field

[0001] This utility model relates to a seeder, and more particularly to a handheld seeder with a seed tray pivotally mounted on the central shaft for distributing seeds. It has a simple structure and a long service life. Background Technology

[0002] The existing handheld seeder is divided into three pivoting components from the outside of the machine body towards the central axis: The first pivoting component mainly includes a feeding spout, an outer ring and an inner ring supporting the feeding spout, and side sealing plates. The outer ring, inner ring, and side sealing plates together form a feeding bin, mainly used to receive the seed material distributed by the second and third pivoting components. The second pivoting component mainly includes a discharge hopper and a distribution bin, used to distribute the numerous seed materials in the discharge hopper one by one in the distribution bin, so that each seed material falls into the corresponding feeding spout through the feeding bin, facilitating the insertion of the feeding spout into the soil for seed dispensing. The third set of pivoting components is fully integrated inside and outside the distribution bin, including the drive gear and transmission gear located outside the distribution bin. The transmission gear mainly drives the sub-material tray inside the distribution bin and the rotating brush opposite the sub-material tray. Crop seeds fall into the distribution bin from the discharge funnel. Under the action of the drive gear, they are pressed through the sub-material tray and the rotating brush, thus ensuring that the seeds fall one by one into the corresponding feeding duckbill in the feeding bin.

[0003] Based on the above overview of existing technologies, existing handheld seeders have complex structures and rely on gears to distribute materials one seed at a time. Furthermore, since the drive gear, transmission gear, rotating brush, seed tray, and other components are all integrated inside or outside the distribution bin, this inevitably increases the overall size of the machine, making it very inconvenient to use during farming. Additionally, the gear components are mostly made of plastic, which is prone to wear and tear and has a short service life. Utility Model Content

[0004] In order to solve the above-mentioned problems in the prior art, this utility model provides a simple, long-lasting, compact and lightweight handheld seeder with a pivot-type feed tray.

[0005] The pivot-type seed tray handheld seeder, including a feeding bin pivotally mounted on a central axis, is an existing technical structure. The main improvement is to place a seed tray on the central axis to rotate synchronously with the feeding bin and distribute the seed material falling from the feeding hopper; a distribution tray has a rotating space in the center to accommodate the seed tray, and the gap between the distribution tray and the seed tray forms a distribution bin for dispensing seeds one by one into the feeding bin; a pressure cover is set at the opening of the rotating space of the distribution tray to restrain the seed tray from detaching from the rotating space.

[0006] This technical solution abandons the existing technology that uses gear components to drive the feed tray and then separates the seeds one by one. Instead, the feed tray and the distribution tray are integrated onto a central shaft. The rotation of the feeding bin drives the feed tray to rotate, thus separating the seeds. This solution not only reduces numerous gear components, simplifying and optimizing the overall structure, but also further reduces the volume of the distribution bin, thereby reducing the overall size of the machine, making it compact, lightweight, and flexible. At the same time, by eliminating easily worn gear components, the overall cost of the machine is lower, and its service life is increased.

[0007] As a preferred design for the material distribution disc, the disc includes a main disc and a secondary disc. The main disc is a cylindrical shape with a central through-hole, while the secondary disc is a circular shape with a central depression. The central through-hole of the main disc and the central depression of the secondary disc form the rotation space of the sub-disc. This design is intended to enhance the overall strength of the machine and to account for the manufacturing complexity of the components. In practice, the material distribution disc can be integrally injection molded, and its shape is not limited to a circle; it can also be a square, an equilateral triangle, etc., depending on the overall form of the machine.

[0008] As a preferred connection structure between the distributing disc and the discharge funnel, the side wall of the distributing disc facing the pressure cap has an inlet communicating with the rotating space. Sub-materials in the discharge funnel fall into the rotating space from the inlet. This design is completely different from existing technologies, where the inlet of the discharge funnel is located at the central axis. This is because existing distributing bins require a large volume, and the sub-material disc and rotating brush are designed to be located at the bottom of the machine, requiring the inlet to be close to both. In this application, the sub-material disc is installed above the central axis, therefore the inlet can only be uniquely located above the rotating space, opening from the side wall of the distributing disc. Since the distributing disc in this application is small and located in the center of the feeding bin, it cannot be opened directly above the distributing disc.

[0009] As a preferred embodiment of the mating structure between the cap and the distribution tray, the cap is provided with a limiting ear, and the side wall of the distribution tray is provided with a limiting groove, into which the limiting ear is embedded. The main function of the cap is to restrain the sub-distribution tray from the rotation space, and it also seals the rotation space. Therefore, the mating structure between the cap and the distribution tray is not limited to the above-mentioned limitations, and there are many other mating methods, such as plug-in mating, magnetic snap mating, threaded mating, and other technical means.

[0010] To achieve seed separation and protect the seeds, this design incorporates an arc-shaped spring on the side of the distribution disc facing the rotation space. Seeds pass between the arc-shaped spring and the seed tray. The arc-shaped spring functions similarly to existing rotating brushes; however, existing rotating brushes are larger and have lower screening force, leading to the phenomenon of multiple seeds being fed into the same tray. The arc-shaped spring, relying on the elastic deformation of a spring, maintains a constant gap with the seed tray. When seeds pass between them, rigid stress is not generated between the distribution disc and the seed tray, thus preventing seed damage.

[0011] As a preferred embodiment of the sub-material tray structure, the sub-material tray is a two-part plug-in body with a circumferential gap between the two plug-in bodies. A lifting plate is provided in the gap to help the sub-material detach from the sub-material tray. One end of the lifting plate is embedded in the distribution tray, and the other end is embedded in the gap of the sub-material tray.

[0012] As a preferred structure for the feeding hopper, the feeding hopper is formed by an outer ring, an inner ring, and two side sealing plates that support the feeding duckbill. Based on this design, as a preferred structure for synchronous rotation of the sub-feeding tray and the feeding hopper, a drive seat is sleeved on the central shaft. One side of the drive seat is fixed to one side of the sealing plate, and the other side of the drive seat is provided with a drive head for driving the sub-feeding tray and the feeding hopper to rotate synchronously.

[0013] The feeding duckbill is fixed to the outer ring and inner ring in sequence by a bracket. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the present invention from a first angle;

[0016] Figure 3 This is a second-angle exploded view of this utility model.

[0017] In the diagram: 1. Outer ring, 2. Inner ring, 3. Sealing plate, 4. Feeding duckbill, 5. Support, 6. Sub-feeding tray, 7. Distributing tray, 8. Discharge funnel, 9. Central shaft, 10. Pressure cap, 11. Drive seat, 12. Main plate, 13. Sub-plate, 14. Central through part, 15. Central recess, 16. Rotation space, 17. Feed inlet, 18. Limiting ear, 19. Limiting groove, 20. Arc-shaped spring, 21. Lifting lever. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings:

[0019] See Figures 1 to 3The pivot-type seed tray handheld seeder shown also features a rotating feeding bin pivotally mounted on a central shaft 9, as is common in the prior art. This feeding bin is formed by an outer ring 1, an inner ring 2 that supports the feeding nozzle 4, and two side sealing plates 3. The main functions of the feeding bin are: firstly, to supply the dispensed seeds to the feeding nozzle 4; and secondly, to rotate around the central shaft 9, replacing different feeding nozzles 4 one by one to feed seeds into the soil. The feeding nozzle 4 is also fixed to the outer ring 1 and inner ring 2 by a bracket 5, as is common in the prior art. This invention places the seed tray 6 on the central shaft 9, which rotates synchronously with the feeding bin to dispense the seeds falling from the discharge funnel 8. At the same time, the volume of the distributing tray 7 is reduced, and its structure is improved. The center of the distributing tray 7 has a rotating space 16 to accommodate the seed tray 6, and the gap between the distributing tray 7 and the seed tray 6 forms a distributing bin for feeding seeds one by one into the feeding bin. In order to prevent the sub-material tray 6 from leaving the rotation space 16, a pressure cover 10 needs to be installed at the opening of the rotation space 16 of the sub-material tray 7 to prevent the sub-material tray 6 from leaving the rotation space 16.

[0020] This embodiment abandons the existing technology of using gear components to drive the sub-material tray 6 for individual seed sorting. Instead, the sub-material tray 6 and the sorting tray 7 are integrated onto the central shaft 9. The rotation of the feeding bin drives the sub-material tray 6 to sort the seeds. This solution not only reduces numerous gear components, simplifying and optimizing the overall structure, but also further reduces the volume of the sorting bin, thereby reducing the overall size of the machine, making it compact, lightweight, and flexible. Simultaneously, by eliminating easily worn gear components, the overall cost of the machine is lower, and its service life is increased.

[0021] like Figure 2 , Figure 3 As shown, in a preferred embodiment where the sub-material tray 6 rotates synchronously with the feeding bin, a drive seat 11 is sleeved on the central shaft 9. One side of the drive seat 11 is fixed to a protective plate 3 on one side, and the other side of the drive seat 11 is provided with a drive head for driving the sub-material tray 6 to rotate synchronously with the feeding bin. The drive head can be an irregularly shaped structure, such as a regular hexagon, a regular quadrilateral, or an equilateral triangle, and can also be connected by a key to ensure that the sub-material tray 6 rotates synchronously with the driving seat 11 and the feeding bin. In fact, other means can be used to replace the drive seat 11, such as a rotating disk, a rotating sleeve, etc. Although these are not shown in the accompanying drawings, those skilled in the art can make corresponding improvements based on the technical inspiration provided by this utility model regarding the drive seat 11, and all such improvements should be within the protection scope of this utility model.

[0022] like Figure 2 , Figure 3As shown, in a preferred embodiment of the material distribution disc 7 structure, the material distribution disc 7 is divided into a main disc 12 and a secondary disc 13. The main disc 12 is a cylindrical shape with a central through-hole, and the secondary disc 13 is a disc with a central depression. The central through-hole portion 14 of the main disc 12 and the central depression portion 15 of the secondary disc 13 constitute the rotation space 16 of the sub-material disc 6. This design is intended to enhance the overall strength of the machine and to account for the difficulty of component processing. In practice, the material distribution disc 7 can be integrally injection molded, and its shape is not limited to a circle; it can also be a square, an equilateral triangle, etc. Its internal rotation space 16 must be circular, and its appearance mainly depends on the overall shape of the machine.

[0023] like Figure 2 , Figure 3 As shown, in a preferred configuration of the connection between the distributing disc 7 and the discharge funnel 8, the side wall of the distributing disc 7 facing the pressure cap 10 has an inlet 17 communicating with the rotating space 16. Sub-materials in the discharge funnel 8 fall into the rotating space 16 through the inlet 17. This design is completely different from the prior art, where the inlet 17 of the discharge funnel 8 is located at the central shaft 9. This is because existing distributing bins require a large volume, and the sub-material disc 6 and rotating brush are designed to be located at the lower part of the machine; therefore, the inlet 17 needs to be close to the sub-material disc 6 and rotating brush. In this application, the sub-material disc 6 is installed above the central shaft 9, so the inlet 17 can only be uniquely located above the rotating space 16 and opened from the side wall of the distributing disc 7. Because the distributing disc 7 in this application is small and located in the center of the feeding bin, it cannot be opened directly above the distributing disc 7.

[0024] like Figure 2 , Figure 3 As shown, in a preferred configuration of the mating structure between the pressure cap 10 and the distribution plate 7, the pressure cap 10 is provided with a limiting ear 18, and the side wall of the distribution plate 7 is provided with a limiting groove 19, in which the limiting ear 18 is embedded. The main function of the pressure cap 10 is to restrain the sub-distribution plate 6 from the rotation space 16, and it also seals the rotation space 16. Therefore, the mating structure between the pressure cap 10 and the distribution plate 7 is not limited to the above-mentioned limitations, and there are many other mating methods, such as plug-in mating, magnetic snap mating, threaded mating, and other technical means.

[0025] like Figure 2 , Figure 3As shown, to achieve seed-by-seed separation and seed protection, this design includes an arc-shaped spring 20 on the side of the distribution disc 7 facing the rotating space 16. Seeds pass between the arc-shaped spring 20 and the seed tray 6. The arc-shaped spring 20 functions similarly to the existing rotating brush, but the existing rotating brush is larger and has a lower screening force, leading to the phenomenon of multiple seeds being fed. The arc-shaped spring 20 maintains a certain gap with the seed tray 6 due to the elastic deformation of the spring. When seeds pass between them, rigid stress is not generated between the distribution disc 7 and the seed tray 6, thus preventing seed damage.

[0026] like Figure 2 , Figure 3 As shown, in a preferred embodiment of the sub-material tray 6 structure, the sub-material tray 6 is a two-part plug-in body with a circumferential gap between the two plug-in bodies. A lifting piece 21 is provided in the gap to help the sub-material detach from the sub-material tray 6. One end of the lifting piece 21 is embedded in the distribution tray 7, and the other end is embedded in the gap of the sub-material tray 6.

Claims

1. A hand-held seed sowing machine with a pivot sub-tray, comprising a feeding bin pivoted on a central shaft to rotate, characterized in that: a sub-tray is arranged above the central shaft to rotate synchronously with the feeding bin to distribute the seeds falling from a seed distribution funnel; a central part of a distribution tray has a rotating space to accommodate the sub-tray, and a gap between the distribution tray and the sub-tray forms a seed distribution bin to feed the seeds to the feeding bin one by one; a pressing cap is arranged at an opening of the rotating space of the distribution tray to confine the sub-tray from leaving the rotating space. The distribution tray comprises a main tray and a sub-tray, the main tray is a cylindrical shape with a through hole in the center, and the sub-tray is a disc shape with a recess in the center, the through hole in the center of the main tray and the recess in the center of the sub-tray form the rotating space of the sub-tray. A side wall of the distribution tray towards the pressing cap is provided with an inlet opening communicating with the rotating space, and the seeds in the seed distribution funnel fall into the rotating space through the inlet opening. The pressing cap is provided with a limiting lug, and the side wall of the distribution tray is provided with a limiting groove, and the limiting lug is embedded in the limiting groove.

2. The pivot tray hand seeder of claim 1, wherein: An arc-shaped elastic piece is arranged on the side of the distribution tray towards the rotating space, and the arc-shaped elastic piece and the sub-tray are connected by the seeds.

3. The pivot tray hand seeder of claim 1, wherein: The sub-tray is a split plug-in body, and a circumferential gap is left between the two plug-in bodies, and a pick-up piece is arranged in the gap to help the seeds leave the sub-tray.

4. The pivot tray hand seeder of claim 1, wherein: One end of the pick-up piece is embedded in the distribution tray, and the other end is embedded in the gap of the sub-tray.

5. The pivot tray hand seeder of claim 1, wherein: The feeding bin is formed by an outer ring bearing a feeding duckbill, an inner ring, and two side protection plates.

6. The pivot tray hand seeder of claim 1, wherein: A driving seat is arranged on the central shaft, one side of the driving seat is fixed to one side of the protection plate, and the other side of the driving seat is provided with a driving head to drive the sub-tray and the feeding bin to rotate synchronously.

7. The pivot tray hand seeder of claim 6, wherein: The feeding duckbill is fixed on the outer ring and the inner ring in sequence through a support.

8. The pivot tray hand seeder of claim 1, wherein: ​ 9. The pivot tray hand seeder of claim 8, wherein: ​ 10. The pivot tray hand seeder of claim 8, wherein: ​

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