Finger clamping type seed sowing device

Abstract

The utility model discloses a finger clip type seed-metering device, which relates to the technical field of seed-metering devices and particularly comprises a seed-metering shell, the seed-metering shell is divided into a seed taking bin and a seed guiding bin through a base arranged in the seed-metering shell, and the seed taking bin is communicated with the seed guiding bin through a connecting port arranged on the upper portion of the base. A seed taking disc and a seed guiding disc are arranged in the seed taking bin and the seed guiding bin respectively and rotate synchronously through a driving shaft, a plurality of seed taking clamps arranged around the center of the seed taking disc in an annular array mode are arranged on the seed taking disc, and the seed taking clamps rotate along with the seed taking disc and can clamp seeds and enter the seed guiding bin through a connecting port. The seed guide disc rotates to transfer seeds to a seed discharging opening in the bottom of the seed guide bin for sowing, the rotating speed of the driving shaft is adjusted and controlled through a speed change mechanism, the clamping precision is high, and the distance between plants can be adjusted and controlled at any time.

Description

Technical Field

[0001] The utility model relates to the technical field of seed metering devices, in particular to a finger-clamping type seed metering device. Background Art

[0002] The seed meter is a component on the seeder that plants seeds into the soil in a certain quantity and state. Its main function is to discharge seeds into the seeder according to agronomic requirements.

[0003] In actual application, due to the distance requirements of different plants, the sowing distances of different seeds are also different during sowing. The existing seed metering device cannot adjust the plant spacing at any time. In addition, the seed clamping accuracy is not high enough, and there is a situation of multiple clamping, which is not conducive to practical use. Utility Model Content

[0004] (1) Technical issues to be resolved

[0005] In order to overcome the shortcomings of the existing technology, a finger-clamping seed metering device is proposed, which has high clamping accuracy and can adjust the plant distance at any time.

[0006] (2) Technical solution

[0007] The present invention is realized through the following technical scheme: the present invention proposes a finger-clamp type seed metering device, comprising a seed metering shell, which is divided into a seed taking bin and a seed guiding bin by a base arranged inside the shell, and the seed taking bin and the seed guiding bin are communicated with each other through a connecting port arranged on the upper part of the base, and a seed taking disc and a seed guiding disc are respectively provided in the seed taking bin and the seed guiding bin, and the seed taking disc and the seed guiding disc are synchronously rotated by a driving shaft, and a plurality of seed taking clamps arranged in a circular array around the center are provided on the seed taking disc, and the seed taking clamps can clamp seeds as the seed taking disc rotates and enter the seed guiding bin through the connecting port, and the seed guiding disc transfers the seeds to the seed metering port at the bottom of the seed guiding bin for sowing by rotating, and the driving shaft realizes the regulation of its rotation speed through a speed changing mechanism.

[0008] Furthermore, the seed taking clamp is connected to the seed taking disc through a driving rod, and a guide sleeve is provided on the base. The outer peripheral surface of the guide sleeve is provided with a concave surface and a convex surface. The tail of the driving rod slides along the concave surface and convex surface of the guide sleeve as the seed taking disc rotates and drives the seed taking clamp to achieve contact and separation with the base, thereby realizing the seed taking and placing functions of the seed taking clamp.

[0009] Furthermore, a seeding port for emptying the seeds in the seed metering device is provided on the seed taking bin, and the seeding port is opened and closed by a rotatable bin door.

[0010] Furthermore, a feed port is provided on the side of the seed taking bin.

[0011] Furthermore, the speed change mechanism includes an input gear, which is connected to a gear set provided on the drive shaft through a shift fork, and the gear set includes a plurality of gears with different diameters.

[0012] Furthermore, an anti-escape seed hole is provided on the seed guide bin opposite to the connection port to prevent seeds from escaping.

[0013] Furthermore, a seed filtering groove for cooperating with the seed taking clamp is also provided on the upper part of the base.

[0014] Furthermore, a seed cleaning brush is provided on the top of the seed taking bin.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The utility model mentions a finger-clamping type seed metering device, which is provided with a seed-taking plate and a seed-guiding plate, which can realize the clamping and seeding of seeds. It is provided with an anti-escape seed hole and a seed-cleaning brush to prevent the escape of seeds, which further reduces the occurrence of multiple clamping and increases the single-seed sowing rate. In addition, a speed change mechanism is provided to adjust the plant spacing, which is convenient and quick, and there is no need to replace the seed metering device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the utility model.

[0019] Figure 2 It is a structural diagram of the base.

[0020] Figure 3 It is a schematic diagram of the positional relationship between the base and the seed tray.

[0021] Figure 4 It is a structural diagram of the seed guide disc.

[0022] Figure 5 It is a schematic diagram of the positional relationship between the seed tray and the guide sleeve.

[0023] Figure 6 It is a side view schematic diagram of the positional relationship between the seed tray and the guide sleeve.

[0024] Figure 7 It is a schematic diagram of the positional relationship of the anti-escape seed holes.

[0025] Figure 8 It is a schematic diagram of the internal structure of the speed change mechanism.

[0026] Figure 9 It is a structural diagram of the guide sleeve.

[0027] 1-seed discharging housing; 2-base; 3-seed bin; 4-seed guide bin; 5-connecting port; 6-seed discharging plate; 7-seed guide plate; 8-seed discharging clamp; 9-seed discharging port; 10-speed changing mechanism; 11-drive rod; 12-guide sleeve; 13-bin door; 14-feed port; 15-input gear; 16-shift fork; 17-gear set; 18-anti-escape seed hole; 19-seed filter trough. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] like Figures 1-9 The finger-clamp type seed meter shown in the figure has a seed metering shell 1 divided into a seed collection bin 3 and a seed guide bin 4 by a circular base arranged inside it. The seed metering shell 1 is a transparent shell, and a seed placement port for emptying the seeds in the seed meter is arranged on the seed collection bin 3. The seed placement port is opened and closed by a rotatable bin door 13, and the bin door 13 adopts a loose-leaf method to realize its rotation function. A feed port 14 is arranged on the side of the seed collection bin 3, and the seeds enter the seed collection bin 3 from the feed port 14.

[0030] The seed taking bin 3 and the seed guide bin 4 are respectively provided with a seed taking disc 6 and a seed guide disc 7. The seed taking disc 6 and the seed guide disc 7 are rotated synchronously by a drive shaft passing through the center of the base 2. The drive shaft is connected to a speed change mechanism 10 to realize the regulation of its speed. The speed change mechanism 10 includes an input gear 15. The input gear 15 is connected to a gear set 17 provided on the drive shaft through a shift fork 16. The gear set 17 includes several gears of different diameters. The engagement of the input gear 15 with gears of different diameters in the gear set 17 is adjusted by the shift fork 16, so as to realize the speed adjustment of the drive shaft, thereby realizing the speed of the seed taking disc 6 and the seed guide disc 7, realizing different sowing spacings, and being suitable for different sowing conditions.

[0031] A driving rod installation groove is provided on the inner circumference of the seed taking disk 6, and the driving rod 11 can be limited and moved in the groove. The circular array of the driving rod installation groove is provided on the seed taking disk 6. The number of installed driving rods 11 represents the number of seed taking clamps 8, which can be freely combined according to different usage conditions. In this embodiment, the number used is 18 or 24. The front end of the driving rod 11 is provided with a seed taking clamp 8, and the seed taking clamp 8 is made of an integral molding. The tail of the driving rod 11 rotates with the seed taking disk 6 and slides along the concave and convex surfaces of the guide sleeve 12. The guide sleeve 12 is installed On the base 2, when the tail end of the driving rod 11 moves relative to the outside of the guide sleeve 12, the driving rod 11 moves up and down along the driving rod installation groove, so that the seed clamp 8 connected thereto moves toward the plane where the base 2 is located, thereby achieving adhesion and separation with the base 2, and thus realizing the seed taking function. The concave and convex surfaces of the guide sleeve 12 respectively occupy half of its outer surface, which can enable the seed clamp 8 to gradually adhere to the base 2 when it rotates to the upper half of the top seed metering device, and gradually separate from the base 2 when it rotates to the lower half, finally realizing the seed clamping and seed releasing functions.

[0032] A connecting port 5 is provided on the upper part of the base 2. When the seed taking clamp 8 clamps the seeds and passes through the connecting port 5, the seeds enter the seed guide disk 7. The seed guide disk 7 includes several seed guide spoons. The seeds fall into the seed guide spoons and rotate with the seed guide disk 7 to the seed discharge port 9 below for discharge. The seed discharge port 9 is located at the bottom of the seed guide bin 4. In order to prevent the seeds from escaping due to the impact of the seeds when entering the seed guide bin 4, an anti-escape seed hole 18 is provided at the seed guide bin 4 opposite to the connecting port 5 to offset the impact of the seeds. In addition, in order to make the seed taking clamp 8 clamp the seeds more accurately and prevent multiple clamping, a seed filter trough 19 for filtering seeds is also provided on the base 2. The seed cleaning brush provided at the top of the seed taking bin 3 can remove excess seeds, thereby increasing the single-grain sowing rate.

[0033] The utility model mentions a finger-clamp type seed metering device. When in use, the seeds enter the seed collection bin 3 through the feed port 14, and the seeds at the lower part of the seed metering device are transferred to the seed guide bin 4 through the rotation of the seed collection disc 6. Then, under the action of the seed guide disc 7, the seeds are moved to the seed discharge port 9 for seeding operations. The sowing plant spacing can be adjusted through the speed change mechanism 10.

[0034] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Any modifications and improvements to the technical solution of the present invention made by a person of ordinary skill in the art without departing from the design concept of the present invention shall fall within the scope of protection of the present invention. The technical content sought to be protected by the present invention is fully set forth in the claims.

Claims

1. A finger-clamp type seed metering device, comprising a seed metering housing (1), characterized in that: The seed dispensing shell (1) is divided into a seed taking bin (3) and a seed guiding bin (4) by a base (2) arranged inside the shell. The seed taking bin (3) and the seed guiding bin (4) are connected through a connecting port (5) arranged on the upper part of the base (2). A seed taking disc (6) and a seed guiding disc (7) are respectively arranged in the seed taking bin (3) and the seed guiding bin (4). The seed taking disc (6) and the seed guiding disc (7) are synchronously rotated by a driving shaft. A plurality of seed taking clamps (8) arranged in a circular array around the center of the seed taking disc (6) are arranged. The seed taking clamps (8) can clamp seeds and enter the seed guiding bin (4) through the connecting port (5) when the seed taking disc (6) rotates. The seed guiding disc (7) transfers the seeds to the seed dispensing port (9) at the bottom of the seed guiding bin (4) for sowing by rotating. The driving shaft realizes the regulation of its rotation speed through a speed change mechanism (10).

2. The finger-clamp type seed metering device according to claim 1, characterized in that: The seed taking clamp (8) is connected to the seed taking disc (6) through a driving rod (11), and a guide sleeve (12) is provided on the base (2). The outer peripheral surface of the guide sleeve (12) is provided with a concave surface and a convex surface. The tail of the driving rod (11) rotates with the seed taking disc (6) and slides along the concave surface and the convex surface of the guide sleeve (12) to drive the seed taking clamp (8) to achieve contact and separation with the base (2), thereby realizing the seed taking and seed placing functions of the seed taking clamp (8).

3. The finger-clamp type seed metering device according to claim 1, characterized in that: A seeding opening for emptying the seeds in the seed metering device is provided on the seed taking bin (3), and the seeding opening is opened and closed by a rotatable bin door (13).

4. The finger-clamp type seed metering device according to claim 1, characterized in that: A feed port (14) is also provided on the side of the seed taking bin (3).

5. The finger-clamp type seed metering device according to claim 1, characterized in that: The speed change mechanism (10) includes an input gear (15), and the input gear (15) is connected to a gear set (17) provided on a drive shaft through a shift fork (16). The gear set (17) includes a plurality of gears with different diameters.

6. The finger-clamp type seed metering device according to claim 1, characterized in that: The seed guide bin (4) is provided with an anti-escape seed hole (18) for preventing seeds from escaping, at a position opposite to the connection port (5).

7. The finger-clamp type seed metering device according to claim 1, characterized in that: The upper portion of the base (2) is also provided with a seed filtering groove (19) for cooperating with the seed taking clamp (8).

8. The finger-clamp type seed metering device according to claim 1, characterized in that: A seed cleaning brush is provided on the top of the seed taking bin (3).

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