Seed dibble seeding equipment

Abstract

The utility model discloses seed dibble seeding equipment, including seed bin, seed taking roller and seed separating chamber, seed bin and seed separating chamber are main body hollow structure, seed bin is provided above and is connected with seed separating chamber, seed taking roller is cylindrical, seed taking roller is transversely provided between seed bin and seed separating chamber, and the seed bin is connected with the seed separating chamber. A plurality of seed taking cavities arranged in a queue are evenly distributed in the side face of the seed taking roller, through holes communicated with the seed taking cavities are formed in the bottom of the seed bin, hole sites corresponding to the seed taking cavities are formed in the top of the seed distribution chamber, a seed falling pipe is erected in the seed distribution chamber, and a top pipe opening of the seed falling pipe corresponds to the seed taking cavities. The seed taking roller is arranged between the seed bin and the seed separating chamber in a state of rotating around the axial direction of the seed taking roller, so that the seed taking cavity rotates along with the seed taking roller to face the seed bin and / or the seed separating chamber, the seed separating chamber is provided with a blocking piece which faces the seed taking roller, the tail end of the blocking piece makes contact with the seed taking roller, one end of the seed taking roller is connected with a rotating handle, and the rotating handle is located outside the seed bin. A plurality of holes can be sown at the same time, and the sowing efficiency is improved.

Description

A seed dispensing device Technical Field

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

[0002] Tobacco plants are cultivated in the laboratory, but suitable sowing tools are lacking. Usually, seeds are collected manually using a tool that assists in sowing tobacco seeds, and then sown manually. The tool that assists in sowing tobacco seeds can be a needle-shaped seed extractor with holes. However, manual seed collection and sowing are inefficient. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a seed sowing device to improve sowing efficiency.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved through the following technical solution: A seed dispensing device is provided, comprising a seed bin, a seed-collecting roller, and a seed-distributing chamber. The seed bin and the seed-distributing chamber are hollow structures. The seed bin is located above and connected to the seed-distributing chamber. The seed-collecting roller is cylindrical and horizontally positioned between the seed bin and the seed-distributing chamber. A plurality of seed-collecting chambers are evenly distributed on the side of the seed-collecting roller, arranged in a row. A through hole communicating with the seed-collecting chambers is provided at the bottom of the seed bin. The top of the seed-separating chamber has an opening corresponding to the seed-collecting cavity. A seed-dropping tube is installed in the seed-separating chamber, with the top opening of the seed-dropping tube corresponding to the seed-collecting cavity. The seed-collecting roller is positioned between the seed bin and the seed-separating chamber in a rotatable manner around its axis, so that the seed-collecting cavity faces the seed bin and / or the seed-separating chamber as the seed-collecting roller rotates. The seed-separating chamber has a stop facing the seed-collecting roller, with the end of the stop contacting the seed-collecting roller. One end of the seed-collecting roller is connected to a rotating handle, which is located outside the seed bin.

[0005] The further technical solution is that the seed-dropping tube is a flexible tube.

[0006] A further technical solution is as follows: the lower end of the inner wall of the seeding chamber is provided with a number of opposing cards at intervals, so that multiple card slots are formed in the seeding chamber, the lower end of the seeding tube is located in the card slots, and a gap is formed between two opposing cards, the size of the gap being smaller than the outer diameter of the seeding tube.

[0007] A further technical solution is as follows: the lower end of the seed bin is formed with a sleeve for the seed taking roller and sleeved outside the seed taking roller. The seed taking roller is connected to one end of the sleeve through a rotating shaft, so that the seed taking roller is installed in the sleeve in a rotatable and left-right limited manner. The rotating handle extends out from the other end of the sleeve.

[0008] A further technical solution is that the through hole is located at the bottom of the sleeve.

[0009] A further technical solution is as follows: the seed bin is recessed from its top to its bottom to form a cavity communicating with the sleeve, and the length of the bottom opening of the cavity is smaller than the axial dimension of the sleeve.

[0010] A further technical solution is as follows: the upper rear end of the seeding chamber is provided with a stop installation part along the direction towards the sleeve. The stop installation part is connected to the outer wall of the sleeve. The stop installation part and the sleeve are respectively provided with opposite slots. The stop is installed in the stop installation part, and the end of the stop contacts the seed taking roller after passing through the slots of the stop installation part and the sleeve.

[0011] The further technical solution is as follows: the stop is a long brush, the bristle fixing part of the long brush is connected to the stop mounting part, the top tip of the bristles of the long brush is fixedly connected to the bristle fixing part, and the end of the bristles of the long brush contacts the seed taking roller.

[0012] The further technical solution is as follows: a baffle is horizontally provided inside the seeding chamber, and the baffle has a through hole for the seeding tube to pass through.

[0013] The further technical solution is that the inner wall surface of the seed-dropping tube is smooth and flat.

[0014] The beneficial technical effects of this utility model are as follows: The seed dispensing device of this utility model has a seed-collecting roller horizontally arranged between the seed bin and the seed distribution chamber. The roller is cylindrical and has several seed-collecting chambers evenly distributed on its side, which can rotate around its own axis. The bottom of the seed bin has a through hole communicating with the seed-collecting chamber, and the top of the seed distribution chamber has a hole corresponding to the seed-collecting chamber. A seed drop tube with a top opening corresponding to the seed-collecting chamber is installed in the seed distribution chamber. This allows seeds from the seed bin to fall into the seed-collecting chamber and move to the corresponding seed drop tube with the rotation of the seed-collecting roller. The seeds then enter the seed drop tube through the top opening and exit through the bottom opening. This allows seeds to be collected simultaneously through multiple seed-collecting chambers arranged in multiple rows, thus simultaneously dispensing seeds into multiple holes. This method enables batch sowing, improving sowing efficiency. The seed-collecting chamber minimizes the difference in seed quantity obtained each time, enhancing sowing precision and quality. A rotating handle located outside the seed chamber at one end of the seed-collecting roller facilitates convenient and quick seed collection, saving time and effort. Seeds are simultaneously loaded into multiple seed-collecting chambers, reducing the frequency of collection. Furthermore, a stopper in the seed-separation chamber, facing the seed-collecting roller and contacting its end, prevents seeds from falling out without passing through the seed-collecting chamber and seed drop tube. The simple structure also makes it easy to carry. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 is a schematic diagram of the seed dispensing device provided in an embodiment of the present invention;

[0017] Figure 2 is a structural schematic diagram of the seed dispensing device provided in an embodiment of the present invention from another angle;

[0018] Figure 3 is a schematic diagram of the seed dispensing device provided in an embodiment of the present invention, omitting the seed-dispensing chamber;

[0019] Figure 4 is a schematic diagram showing the connection between the seed distribution chamber and the baffle of the seed dispensing device provided in this embodiment of the present invention.

[0020] Figure 5 is a schematic diagram of the assembly of the seed dispensing chamber and the seed picking roller of the seed dispensing device provided in this embodiment of the present invention;

[0021] Figure 6 is a structural schematic diagram of the seed distribution chamber of the seed dispensing device provided in an embodiment of this utility model from another angle;

[0022] Figure 7 is a schematic diagram of the seed bin structure of the seed sowing device provided in the embodiment of this utility model. Detailed Implementation

[0023] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to Figures 1 to 7. Figure 1 is a structural schematic diagram of the seed dispensing device provided in this embodiment of the present invention. The seed dispensing device includes a seed bin 1, a seed-collecting roller 3, and a seed-separating chamber 6. The seed bin 1 and the seed-separating chamber 6 are hollow structures. The seed bin 1 is located above and connected to the seed-separating chamber 6. The seed-collecting roller 3 is cylindrical and is horizontally positioned between the seed bin 1 and the seed-separating chamber 6. A plurality of seed-collecting cavities 5 are evenly distributed on the side of the seed-collecting roller 3. The seed-collecting cavities 5 are arranged in a row. The bottom of the seed bin 1 has a through hole 111 communicating with the seed-collecting cavities 5. The top of the seed-separating chamber 6... The seed chamber 1 has a hole 61 corresponding to the seed collection chamber 5. A seed drop tube 7 is installed in the seed distribution chamber 6. The top opening of the seed drop tube 7 corresponds to the seed collection chamber 5. The seed collection roller 3 is arranged between the seed bin 1 and the seed distribution chamber 6 in a state that can rotate around its own axis, so that the seed collection chamber 5 faces the seed bin 1 and / or the seed distribution chamber 6 as the seed collection roller 3 rotates. The inner wall of the top of the seed distribution chamber 6 is provided with a stop 2 facing the seed collection roller 3. The end of the stop 2 contacts the seed collection roller 3. One end of the seed collection roller 3 is connected to a rotating handle 4, which is located outside the seed bin 1.

[0025] The seeds can be naked tobacco seeds. Each seed-collecting chamber 5 can hold 3-5 seeds, reducing seed waste. The position of the seed-collecting chamber 5 and the bottom opening of the seed-dropping tube 7 can be reasonably set according to the required sowing location. The seed-collecting chambers 5 are not interconnected, and the seed-collecting roller 3 does not pass through the seed-collecting chamber 5. The bottom of the seed-separating chamber 6 has an opening so that the seeds fall from the bottom opening of the seed-separating chamber 6 to the required sowing location after passing through the seed-dropping tube 7. The top surface of the seed-separating chamber 6 has a guide surface so that the seeds fall into the corresponding seed-dropping tube 7 through the hole 61. The static gap between the seed bin 1, the seed-collecting roller 3 and the seed-separating chamber 6 can be ensured to be smaller than the seed particle size through precision machining. The rotational gap between the seed-collecting roller 3 and the seed bin 1, and between the seed-collecting roller 3 and the seed-separating chamber 6, is smaller than the seed particle size, so that the seeds will not flow out through the gaps due to the gaps between the components. The top opening of the seed drop tube 7 corresponds to and is connected to the hole 61 of the seed distribution chamber 6, so as to correspond to the seed collection chamber 5 of the seed collection roller 3, so that the seeds in the seed collection chamber 5 can enter the corresponding seed drop tube 7. The seed sowing device has a seed collection roller 3 with a cylindrical side that can rotate around its own axis and is evenly distributed with several seed collection chambers 5 in a row between the seed bin 1 and the seed distribution chamber 6. The bottom of the seed bin 1 has a through hole 111 communicating with the seed collection chamber 5, and the top of the seed distribution chamber 6 has a hole 61 corresponding to the seed collection chamber 5. The seed drop tube 7 with the top opening corresponding to the seed collection chamber 5 is installed in the seed distribution chamber 6, so that the seeds in the seed bin 1 can fall into the seed collection chamber 5 and move to the corresponding seed drop tube 7 with the rotation of the seed collection roller 3. Under the action of gravity, the seeds enter the seed drop tube 7 through the top opening of the seed drop tube 7 and are output through the bottom opening of the seed drop tube 7. Sowing can be carried out simultaneously through multiple seed collection chambers 5 in a row, so as to sow multiple holes at the same time. This design enables batch sowing, improving sowing efficiency. The seed-collecting chamber 5 minimizes the difference in the number of seeds collected each time, enhancing sowing precision and quality. A rotating handle 4, located outside the seed chamber 1, facilitates rotation of the seed-collecting roller 3, making seed collection more convenient and efficient, saving time and effort. During seed collection, seeds enter multiple seed-collecting chambers 5 at once, reducing the frequency of seed collection. Furthermore, a stop 2, facing the seed-collecting roller 3 and with its end in contact with it, prevents seeds in the seed chamber 1 from falling out of the seed chamber 6 without passing through the seed-collecting chamber 5 and the seed drop tube 7. The design is simple and easy to carry.

[0026] Preferably, the rotating handle 4 is coaxially arranged with the seed-taking roller 3 so that the seed-taking roller 3 moves with the rotation of the rotating handle 4.

[0027] Specifically, in this embodiment, the seed-dropping tube 7 is a flexible tube. A flexible tube is a soft and deformable tubular object that can be made of elastic materials, such as rubber, plastic and / or polyurethane, and has a certain degree of flexibility and plasticity.

[0028] Specifically, the lower end of the inner wall of the seeding chamber 6 is provided with a plurality of opposing cards 9 at intervals, so that multiple slots 8 are formed inside the seeding chamber 6. The lower end of the seed-dropping tube 7 is located in the slot 8, and a gap is formed between two opposing cards 9. The size of the gap is smaller than the outer diameter of the seed-dropping tube 7, so that under normal circumstances, the lower end of the seed-dropping tube 7 cannot be moved to other slots 8 through the gap, thus pre-defining the position of the lower end of the seed-dropping tube 7. The number of seed-dropping tubes 7 can be equal to the number of seed-taking chambers 5 in the same row of seed-taking rollers 3, and the number of slots 8 can be equal to the number of seed-dropping tubes 7. Of course, the number of slots 8 can be greater than the number of seed drop tubes 7. Since the seed drop tube 7 is a flexible tube, the position of the bottom end of the seed drop tube 7 can be adjusted according to the sowing requirements. By applying appropriate pressure to the tube wall of the seed drop tube 7 near the gap, the radial dimension of the tube wall near the gap of the seed drop tube 7 is changed. When the radial dimension of the tube wall near the gap of the seed drop tube 7 is smaller than the gap, the seed drop tube 7 can pass through the gap and enter another slot 8, realizing the movement of the bottom end of the seed drop tube 7. The sowing position can be adjusted according to actual needs, so that the position of the seed drop tube 7 can be adjusted according to the size of the seedling tray, realizing the free adjustment of the spacing of the seed drop tubes 7.

[0029] Preferably, in this embodiment, the card 9 is disposed at the bottom of the inner wall of the seeding chamber 6.

[0030] Specifically, in this embodiment, the bottom opening of the seed-dropping tube 7 is flush with the bottom opening of the seed-dividing chamber 6. Of course, in some embodiments, the bottom end of the seed-dropping tube 7 extends beyond the bottom opening of the seed-dividing chamber 6.

[0031] Specifically, in this embodiment, the lower end of the seed chamber 1 has a sleeve 11 for mounting the seed-collecting roller 3 and sleeved over the seed-collecting roller 3. The seed-collecting roller 3 is connected to one end of the sleeve 11 via a rotating shaft, so that the seed-collecting roller 3 is installed in the sleeve 11 in a rotatable and left-right limited manner. The rotating handle 4 extends from the other end of the sleeve 11. One end of the sleeve 11 is covered with an end cap, and the other end of the sleeve 11 is covered with a cover body with a perforated groove, so that the sleeve 11, together with the end cap and the cover body, forms an accommodating space to protect the seed-collecting roller 3 and prevent seeds from falling out. The cover body has a perforated groove to allow the rotating handle 4 to connect with the seed-collecting roller 3.

[0032] Specifically, the through hole 111 is located at the bottom of the sleeve 11 to correspond to the hole 61 of the seed distribution chamber 6, so that after the seed taking roller 3 takes the seed from the seed taking chamber 5, the seed is transferred to the corresponding seed dropping tube 7 through the through hole 111 of the sleeve 11 and the hole 61 of the seed distribution chamber 6.

[0033] Preferably, the seed chamber 1 is recessed from its top to its bottom to form a cavity 12 communicating with the sleeve 11. The length of the bottom opening of the cavity 12 is smaller than the axial dimension of the sleeve 11 to prevent seeds from falling outside the sleeve 11. The lateral length of the bottom opening of the cavity 12 is not greater than the lateral distance between the mutually distant cavity sidewalls of the first and last seed chambers 5 in the same row of seed-collecting rollers 3, to reduce the possibility of seeds falling into the sleeve 11 from outside the seed-collecting cavity 5. The inner wall of the lower end of the cavity 12 may be provided with a scraper ring corresponding to the bottom opening of the cavity 12. The end of the scraper ring may contact the seed-collecting roller 3 to further prevent seeds from falling outside the seed-collecting cavity 5.

[0034] Specifically, the upper rear end of the seeding chamber 6 is provided with a stop mounting part 62 in the direction toward the sleeve 11. The stop mounting part 62 is connected to the outer wall of the sleeve 11. The stop mounting part 62 and the sleeve 11 are respectively provided with opposite slots. The stop 2 is installed on the stop mounting part 62, and the end of the stop 2 contacts the seed taking roller 3 after passing through the slots of the stop mounting part 62 and the sleeve 11.

[0035] Specifically, in this embodiment, the baffle 2 is a long brush, the bristle fixing part of the long brush is connected to the baffle mounting part 62, the top of the bristles of the long brush is fixedly connected to the bristle fixing part, and the end of the bristles of the long brush is in close contact with the seed taking roller 3, so as to effectively prevent seeds from flowing out through the gap between the components when the seed taking roller 3 is stationary or rotating.

[0036] Of course, in some embodiments, the stop 2 may be a flexible scraper, with the top end of the scraper connected to the stop mounting part 62 and the end of the scraper in close contact with the seed taking roller 3.

[0037] Preferably, the stop 2 is a long strip brush arranged in multiple rows along the circumference of the bristle fixing part. The bristle fixing part of the long strip brush is connected to the stop mounting part 62, the tip of the bristles of the long strip brush is fixedly connected to the bristle fixing part, and the end of the bristles of the long strip brush is in close contact with the seed taking roller 3.

[0038] Specifically, a baffle 63 is horizontally installed inside the seeding chamber 6, and the baffle 63 has a perforation for the seed drop tube 7 to pass through. The edge of the baffle 63 is fixedly connected to the inner wall of the seeding chamber 6 to further prevent seeds from falling out of the seed drop tube 7.

[0039] Preferably, both ends of the baffle 63 may be provided with seed leakage holes so that after sowing is completed, the seeds falling on the baffle 63 can be discharged and collected through the seed leakage holes by tilting and shaking the seed sowing device.

[0040] Specifically, in this embodiment, the seed-collecting chambers 5 can be arranged symmetrically along the axial direction of the seed-collecting rollers 3. The seed-collecting chambers 5 can be arranged in four rows along the axial direction of the seed-collecting rollers 3, and the seed-collecting chambers 5 are symmetrical along the axial direction of the seed-collecting rollers 3, so that when one side of the seed-collecting chamber 5 faces the bottom of the seed bin 1 as the seed-collecting rollers 3 rotate, the other side of the seed-collecting chamber 5 faces the seed-dispensing chamber 6 and corresponds to the top opening of the corresponding seed-dropping tube 7, so as to realize the synchronous operation of seed collection and seed dropping, and improve the sowing efficiency.

[0041] Specifically, in this embodiment, a filter screen with an opening facing the seed chamber 1 is detachably installed in the seed chamber 1, so that only seeds can pass through the filter screen, thereby filtering out non-seed impurities.

[0042] Specifically, the inner wall surface of the seed-dropping tube 7 is smooth and flat. The processing ensures the inner wall of the seed-dropping tube 7 is smooth and flat, free from static electricity, facilitating sowing. During sowing, the bottom of the seed-dropping tube 7 can be gently shaken to apply a vibration force, making it easier for the seeds to fall through the tube. The size of the top opening of the seed-dropping tube 7 is not smaller than the opening size of the seed-collecting chamber 5. In some embodiments, the seed-dropping tube 7 may be made of a material with low surface energy and where particles and powder do not easily adhere.

[0043] Specifically, the length of the seed-taking roller 3 is not less than the radial dimension of the bottom opening of the cavity 12, and the length of the seed-taking roller 3 is not greater than the length of the sleeve 11.

[0044] Specifically, in this embodiment, the inner diameter of the seeding chamber 6 gradually increases from top to bottom. The cross-section of the seeding chamber 6 may be an isosceles trapezoid.

[0045] Specifically, in this embodiment, the inner diameter of the seed bin 1 gradually decreases from top to bottom, so that the seed bin 1 is funnel-shaped.

[0046] Based on the above design, during operation, seeds are poured into the seed chamber. Under the action of the filter screen, only the seeds fall to the bottom of the seed chamber. Some seeds enter the seed collection chamber under the action of gravity and fill the seed collection chamber. Turning the handle drives the seed collection roller to rotate. The stop prevents seeds other than those filled in the seed collection chamber from falling off the side wall of the seed collection roller. The seed collection chamber containing seeds faces the seed distribution chamber as the seed collection roller rotates. When the seed collection chamber rotates to the top opening of the corresponding seed drop tube, the seeds that have entered the seed collection chamber fall into the seed drop tube under the action of gravity and are output to the corresponding holes through the bottom opening of the seed drop tube.

[0047] In summary, the seed sowing device of this utility model features a seed-collecting roller horizontally positioned between the seed bin and the seed distribution chamber. This roller has a cylindrical shape and several seed-collecting chambers evenly distributed on its side, arranged in a queue. The bottom of the seed bin has a through-hole communicating with the seed-collecting chambers, and the top of the seed distribution chamber has an opening corresponding to the seed-collecting chambers. A seed-dropping tube with its top opening corresponding to the seed-collecting chamber is installed in the seed distribution chamber. This allows seeds from the seed bin to fall into the seed-collecting chambers and move with the rotation of the seed-collecting rollers to the corresponding seed-dropping tube. Seeds then enter the seed-dropping tube through its top opening and exit through its bottom opening. This allows for simultaneous seed collection through multiple queued seed-collecting chambers, enabling simultaneous sowing in multiple holes. This technology enables batch sowing, improving sowing efficiency. The seed-collecting chamber minimizes the difference in seed quantity obtained each time, enhancing sowing precision and quality. A rotating handle located outside the seed chamber at one end of the seed-collecting roller facilitates easy and quick seed collection, saving time and effort. During collection, seeds enter multiple chambers simultaneously, reducing the frequency of collection. Furthermore, a stopper in the seed-seed chamber, facing the seed-collecting roller and contacting its end, prevents seeds from falling out without passing through the seed-collecting chamber and seed drop tube. The simple structure also makes it easy to carry.

[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A seed dispensing device, characterized in that, The device includes a seed bin, a seed-collecting roller, and a seed-separating chamber. The seed bin and the seed-separating chamber are hollow structures. The seed bin is located above and connected to the seed-separating chamber. The seed-collecting roller is cylindrical and horizontally positioned between the seed bin and the seed-separating chamber. Several seed-collecting cavities are evenly distributed on the side of the seed-collecting roller, arranged in a row. The bottom of the seed bin has a through-hole communicating with the seed-collecting cavities, and the top of the seed-separating chamber has a hole corresponding to one of the seed-collecting cavities. The seed-seed chamber is equipped with a seed-dropping tube, the top opening of which corresponds to the seed-collecting chamber. A seed-collecting roller is positioned between the seed bin and the seed-seed chamber, allowing it to rotate around its axial direction. This allows the seed-collecting chamber to face the seed bin and / or the seed-seed chamber as the seed-collecting roller rotates. The seed-seed chamber is equipped with a stop that faces the seed-collecting roller, the end of which contacts the seed-collecting roller. One end of the seed-collecting roller is connected to a rotating handle located outside the seed bin.

2. The seed dispensing device according to claim 1, characterized in that, The seed-dropping tube is a flexible tube.

3. The seed dispensing device according to claim 2, characterized in that, The lower end of the inner wall of the seeding chamber is provided with several opposing cards at intervals, so that multiple card slots are formed in the seeding chamber. The lower end of the seed drop tube is located in the card slots, and a gap is formed between two opposing cards. The size of the gap is smaller than the outer diameter of the seed drop tube.

4. The seed dispensing device according to claim 1, characterized in that, The lower end of the seed bin has a sleeve for mounting the seed-taking roller and sleeved over the seed-taking roller. The seed-taking roller is connected to one end of the sleeve via a rotating shaft, so that the seed-taking roller is installed in the sleeve in a rotatable and left-right limited manner. The rotating handle extends out from the other end of the sleeve.

5. The seed dispensing device according to claim 4, characterized in that, The through hole is located at the bottom of the sleeve.

6. The seed dispensing device according to claim 4, characterized in that, The seed bin is recessed from its top to its bottom to form a cavity communicating with the sleeve, and the length of the bottom opening of the cavity is smaller than the axial dimension of the sleeve.

7. The seed dispensing device according to claim 4, characterized in that, The upper rear end of the seeding chamber is provided with a stop installation part along the direction towards the sleeve. The stop installation part is connected to the outer wall of the sleeve. The stop installation part and the sleeve are respectively provided with opposite slots. The stop is installed in the stop installation part, and the end of the stop contacts the seed taking roller after passing through the slots of the stop installation part and the sleeve.

8. The seed dispensing device according to claim 7, characterized in that, The stop is a long brush, the bristle fixing part of the long brush is connected to the stop mounting part, the tip of the bristles of the long brush is fixedly connected to the bristle fixing part, and the end of the bristles of the long brush contacts the seed taking roller.

9. The seed dispensing device according to claim 1, characterized in that, The seeding chamber is equipped with a horizontal baffle, and the baffle has perforations for the seed-dropping tube to pass through.

10. The seed dispensing device according to claim 1, characterized in that, The inner wall surface of the seed-dropping tube is smooth and flat.

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