Seeder capable of screening seed sizes

Abstract

The utility model discloses a seeder capable of screening seed size, which comprises a shell, the top of the shell is communicated with a feed inlet, a fixing rod is mounted in the shell, a rotating drum is mounted on the side surface of the shell in a fixed-axis rotating manner, and six baffles are arrayed on the outer surface of the rotating drum. Sieve plates are installed among the six baffles through detachable structures, an ejector rod penetrating through the rotary drum is slidably connected into the rotary drum, and a roller is rotationally installed at the end, located in the rotary drum, of the ejector rod through a fixed shaft. According to the utility model, the sieve plate is arranged, the rotation of the rotary drum is combined, seeds in the shell are continuously poked, the seeds conforming to the size of the sieve plate fall into the sieve plate, and along with the rotation of the rotary drum, when the ejector rod rotates along with the rotary drum and is in contact with the bulges arranged on the fixed rod, the ejector rod ejects the seeds out of the sieve plate, so that the seeds can be conveniently and rapidly separated by replacing sieve plates with different specifications. And screening of seeds with different sizes is realized.

Description

Technical Field

[0001] The utility model relates to the field of seeders, in particular to a seeder capable of screening seed sizes. Background Art

[0002] A seeder is a tool designed to facilitate manual sowing. Its sowing power is customized, so the number of seeds thrown out per unit time is also certain. The uniformity of seed dispersion in the farmland is significantly better than manual sowing of seeds. Therefore, the use of seeders for sowing has gradually become the mainstream.

[0003] Existing seeders cannot screen seeds according to their size, resulting in seeds that do not meet the specified size being planted, or a mixture of two or more seeds being mixed and sown. As a result, the crops cannot grow normally after the seeds that do not meet the size requirements are planted, resulting in reduced yields, or other seeds are planted. If the other seeds are not suitable for planting in the local soil, it will affect the progress of agricultural activities. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing seeder cannot perform screening based on seed size.

[0005] The top of the shell is connected with a feeding port, and a fixed rod is installed inside the shell. A rotating drum is installed on the side of the shell with a fixed axis rotation. The outer surface of the rotating drum is arrayed with six baffles, and a screening plate is installed between the six baffles through a detachable structure. The inside of the rotating drum is slidably connected to a top rod that passes through the rotating drum, and the top rod is located inside the rotating drum and is fixedly mounted on one end of the rotating drum and a roller is fixedly mounted on the rotating drum. The end of the top rod extends to the outside of the rotating drum and is sequentially installed with a first curved plate and a second curved plate. An ejector pin is installed on the outside of the second curved plate. One side of the shell is connected with a mounting bin, and a screening drum is installed inside the mounting bin with a fixed axis rotation. The inside of the shell is located below the screening drum and a rotating plate is fixedly mounted on the rotating plate. One end of the rotating plate extends between the baffles, and a partition plate located below the rotating drum is installed inside the shell.

[0006] The present invention is further configured such that one end of the rotating drum extends to the outside of the shell and a regular hexagonal groove is provided on the side thereof.

[0007] The utility model is further configured such that a spring is sleeved on the outer surface of the push rod and two ends of the spring are respectively connected to the outer surface of the rotating drum and the outer surface of the first arc-shaped plate.

[0008] The present invention is further configured such that the rotating drum and the fixing rod are concentrically arranged on the housing and the rotating drum covers the periphery of the fixing rod.

[0009] The present invention is further configured such that an opening is provided on the bottom of the shell surface away from the installation compartment, and a protrusion is provided on the outer surface of the fixing rod near the position of the opening on the shell surface.

[0010] The present invention is further configured such that an arc plate matching the outer shape of the drum is provided on the top of the partition plate, and the bottom of the partition plate is forked and has an opening at one end close to the installation bin.

[0011] The utility model is further configured such that friction rings in contact with each other are installed at one end of the outer surfaces of the rotating drum and the screening drum, and an inclined shield is installed on the inner wall of the shell above the gap between the rotating drum and the screening drum.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model continuously stirs the seeds in the housing by means of the sieve plate in combination with the rotation of the drum, and the seeds that meet the size of the sieve plate fall into the sieve plate. As the drum rotates, the push rod rotates with the drum and contacts the protrusions provided on the fixed rod, and the push rod pushes the seeds out of the sieve plate. Therefore, by replacing the sieve plates of different specifications, seeds of different sizes can be screened;

[0014] 2. The utility model is provided with a screening cylinder, and the seeds whose size matches the screening cylinder will fall through the screening cylinder to the top of the rotating plate. When the rotating drum rotates and the baffle contacts the part of the rotating plate extending to the inside of the baffle, the rotating plate is driven to rotate, so that the seeds in the space where the screening cylinder is located can fall down and fall into the space separated by the partition plate and on a different side from the rotating drum, and are sent out through the opening. In combination with the rotating drum, the shell can screen two or more seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a side view of the structure of the utility model;

[0017] Figure 3 This is a cross-sectional view of the internal structure of the utility model;

[0018] Figure 4 for Figure 3 A magnified schematic diagram of the structure in the middle.

[0019] In the figure: 1. Shell; 2. Feed port; 3. Fixed rod; 4. Rotating drum; 5. Baffle; 6. Screen plate; 7. Ejector rod; 8. Roller; 9. First curved plate; 10. Second curved plate; 11. Ejector pin; 12. Mounting bin; 13. Screening drum; 14. Rotating plate; 15. Partition plate. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0021] See also Figures 1 to 4 A seed drill capable of screening seed sizes includes a shell 1, a feed port 2 is connected to the top of the shell 1, a fixed rod 3 is installed inside the shell 1, a rotating drum 4 is installed on the side of the shell 1 for rotation, and six baffles 5 are arranged on the outer surface of the rotating drum 4. Screen plates 6 are installed between the six baffles 5 through a detachable structure. The detachable structure can be used to easily replace screen plates 6 of different specifications to achieve the screening of seeds of different sizes. The interior of the rotating drum 4 is slidably connected to a top rod 7 that passes through the rotating drum 4. The top rod 7 is located inside the rotating drum 4. A roller 8 is installed on one end for fixed axis rotation, and a first curved plate 9 and a second curved plate 10 are installed in sequence at one end of the push rod 7 extending to the outside of the drum 4. A thimble 11 is installed on the outside of the second curved plate 10. One side of the shell 1 is connected to a mounting bin 12, and a screening drum 13 is installed on the inside of the mounting bin 12 for fixed axis rotation. A rotating plate 14 is installed on the inside of the shell 1 below the screening drum 13 for fixed axis rotation. One end of the rotating plate 14 extends between the baffles 5, and a partition plate 15 is installed on the inside of the shell 1 below the drum 4.

[0022] like Figure 2 As shown, one end of the drum 4 extends to the outside of the shell 1 and a regular hexagonal groove is provided on the side. By combining the shape and position of the groove, it is convenient to connect to an external power device to drive the drum 4 to rotate, and the shell 1 is provided with a rubber column on the side opposite to the surface where the end of the drum 4 with the groove is located. The rubber column has a polygonal groove inside and a tightening hoop is installed on the outside. The rubber column is used to realize the installation of the seeder on other devices.

[0023] like Figure 4 As shown, a spring is sleeved on the outer surface of the push rod 7 and both ends of the spring are respectively connected to the outer surface of the drum 4 and the outer surface of the first arc-shaped plate 9. When the push rod 7 moves, the push rod 7 can be reset with the help of the elastic force of the spring.

[0024] like Figure 3 As shown, the rotating drum 4 and the fixed rod 3 are arranged concentrically on the housing 1 and the rotating drum 4 covers the periphery of the fixed rod 3, so that when the rotating drum 4 rotates, the end of the top rod 7 equipped with the roller 8 can contact the outer surface of the fixed rod 3.

[0025] An opening is provided at the bottom of the shell 1 surface away from the mounting chamber 12, and a protrusion is provided on the outer surface of the fixing rod 3 near the position of the opening on the shell 1 surface. Combined with the above content, the roller 8 installed on the ejector rod 7 can contact the outer surface of the fixing rod 3, thereby utilizing the protrusion to move the ejector rod 7 to perform an ejection action.

[0026] An arc plate that matches the shape of the drum 4 is provided on the top of the partition plate 15. The bottom of the partition plate 15 is forked and has an opening at one end close to the mounting bin 12. Combined with the figure, the partition plate 15 divides the interior of the shell 1 into two areas, so that seeds of different sizes pass through the sieve plate 6 on the drum 4 and the screening drum 13, and the seeds are separated into different areas and the seeds of different sizes are guided out through the opening.

[0027] One end of the outer surface of the rotating drum 4 and the screening drum 13 is installed with a friction ring that contacts each other, and the inner wall of the shell 1 is installed with an inclined shield above the gap between the rotating drum 4 and the screening drum 13. The friction ring can make the rotating drum 4 and the screening drum 13 rotate synchronously in opposite directions and continuously move the seeds in the shell 1. The inclined shield also prevents the seeds from falling into the gap between the rotating drum 4 and the screening drum 13, and also plays a role in guiding the seeds to roll toward the screening drum 13.

[0028] When the utility model is in use, seeds are put into the housing 1 through the feeding port 2 at the top of the housing 1, and the drum 4 can be driven to rotate by a power device connected to the outside, and the friction ring provided on the drum 4 and the screening drum 13 is used to make the drum 4 and the screening drum 13 rotate synchronously in opposite directions, continuously stirring the seeds in the housing 1, so that the seeds that meet the size of the sieve plate 6 fall into the sieve plate 6, and as the drum 4 rotates, when the push rod 7 rotates with the drum 4 and contacts the protrusion provided on the fixed rod 3, the push rod 7 pushes the seeds in the sieve plate 6 out, and the pushed seeds fall into the space on the side of the drum 4 separated by the partition plate 15. At the same time, the seeds that meet the size of the screening drum 13 will pass through the screening drum 13 and fall above the rotating plate 14. When the drum 4 rotates and makes the baffle 5 contact with the part of the rotating plate 14 extending to the inside of the baffle 5, the rotating plate 14 is driven to rotate, thereby allowing the seeds in the space where the screening drum 13 is located to fall into the space separated by the partition plate 15 and on a side different from the drum 4, and be sent out through the opening.

[0029] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A seed drill capable of screening seed sizes, comprising a housing (1), characterized in that: The top of the shell (1) is connected to a feed port (2), a fixed rod (3) is installed inside the shell (1), a rotating drum (4) is installed on the side of the shell (1) in a fixed-axis rotation manner, six baffles (5) are arranged on the outer surface of the rotating drum (4), and sieve plates (6) are installed between the six baffles (5) through a detachable structure, and a top rod (7) that passes through the rotating drum (4) is slidably connected inside the rotating drum (4), and a roller (8) is installed on one end of the top rod (7) located inside the rotating drum (4) in a fixed-axis rotation manner, and the top rod (7) extends to the outside of the rotating drum (4). A first arc-shaped plate (9) and a second arc-shaped plate (10) are sequentially installed at one end of the housing (1), and a thimble (11) is installed on the outer side of the second arc-shaped plate (10). One side of the housing (1) is connected to a mounting chamber (12), and a screening drum (13) is installed in a fixed-axis rotatable manner inside the mounting chamber (12). A rotating plate (14) is installed in a fixed-axis rotatable manner below the screening drum (13) inside the housing (1), and one end of the rotating plate (14) extends between the baffles (5). A partition plate (15) is installed in the housing (1) and is located below the rotating drum (4).

2. A seed seeder capable of screening seed sizes according to claim 1, characterized in that: One end of the rotating drum (4) extends to the outside of the shell (1) and a regular hexagonal groove is provided on the side.

3. The seed seeder capable of screening seed sizes according to claim 1, characterized in that: The outer surface of the push rod (7) is sleeved with a spring, and both ends of the spring are respectively connected to the outer surface of the rotating drum (4) and the outer surface of the first arc-shaped plate (9).

4. The seed seeder capable of screening seed sizes according to claim 1, characterized in that: The rotating drum (4) and the fixed rod (3) are arranged on the housing (1) in a concentric manner, and the rotating drum (4) covers the periphery of the fixed rod (3).

5. The seed seeder capable of screening seed sizes according to claim 1, characterized in that: An opening is provided at the bottom of the shell (1) surface away from the installation chamber (12), and a protrusion is provided on the outer surface of the fixing rod (3) near the position of the opening provided on the shell (1) surface.

6. The seeder capable of screening seed sizes according to claim 1, characterized in that: The top of the partition plate (15) is provided with an arc plate that matches the shape of the rotating drum (4). The bottom of the partition plate (15) is forked and has an opening at one end close to the installation bin (12).

7. The seeder capable of screening seed sizes according to claim 1, characterized in that: Friction rings that contact each other are installed on one end of the outer surfaces of the rotating drum (4) and the screening drum (13), and an inclined shield is installed on the inner wall of the shell (1) above the gap between the rotating drum (4) and the screening drum (13).

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