A seed metering device with quick change seed plate

Abstract

The utility model discloses a kind of seed metering device of quick replacement seed disc, it is related to seed metering device technical field, including main connecting rod, both ends of the main connecting rod are fixedly connected with L type support, the far end of two L type supports is rotatably connected with rolling wheel, the outer side of the main connecting rod close to middle part is fixedly connected with U type drive connecting block, the inner side of the U type drive connecting block is provided with external drive equipment, the outer side of the main connecting rod is fixedly connected with multiple inclined connecting columns, the utility model is quickly replaced seed disc and is discharged in seed metering device, when replacing seed disc, by starting the cylinder in quick release assembly, cylinder output end will promote H type rotating seat to move, and then drive two pull rods to pull first L type rotating rod and second L type rotating rod to rotate to the far side, make the plug-in limiting head separate from the limiting block outside seed disc body, seed disc disassembly can be quickly completed.

Description

Technical Field

[0001] This utility model relates to the field of seed metering devices, and in particular to a seed metering device with a quickly replaceable seed tray. Background Technology

[0002] Seed metering devices are core equipment in agricultural sowing operations. Their main function is to accurately and orderly sow seeds into the soil according to a preset quantity, spacing, and depth. They are key devices connecting seeds with the field sowing process and are widely used in the sowing of various crops such as wheat, corn, and vegetables. They are an important component in realizing mechanized sowing in agriculture. Existing seed metering devices mostly use bolts or complex snap-fit ​​structures for seed tray installation. Replacement requires the use of special tools to disassemble each fixing component, which is cumbersome and time-consuming. This is especially true in scenarios where different crop varieties need to be sown and seed trays need to be frequently switched, where a significant amount of time is wasted on seed tray disassembly and assembly, severely reducing overall sowing efficiency. Secondly, existing seed metering devices lack coordination in grooving, seed metering, soil compaction, and leveling. Furthermore, existing soil compaction components are mostly single-roller designs, which can only compact the soil behind the seed furrow, failing to achieve uniform compaction of the soil in front of the furrow. This leads to differences in soil compaction between the front and back of the furrow, causing seeds to easily shift when falling into the furrow, resulting in significant differences in seed burial depth in the soil. This severely affects the consistency of seed germination and reduces crop emergence rate. To solve these problems, we propose a seed metering device with a quickly replaceable seed tray. Utility Model Content

[0003] The main objective of this invention is to provide a seed metering device that allows for quick replacement of seed trays, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A seed metering device with a quick-change seed tray includes a main connecting rod. L-shaped brackets are fixedly connected to both ends of the main connecting rod. Rolling wheels are rotatably connected to the ends of the two L-shaped brackets that are far apart from each other. A U-shaped drive connecting block is fixedly connected to the outer side of the main connecting rod near its center. An external drive device is provided on the inner side of the U-shaped drive connecting block. Multiple inclined connecting columns are fixedly connected to the outer side of the main connecting rod. A seed tray body is provided on the inner side of the multiple inclined connecting columns. Two quick-release components are provided on the outer side of the seed tray body. A horizontal mounting column is fixedly connected to the bottom of each of the multiple inclined connecting columns. A slotted component is provided on the inner side of the horizontal mounting column.

[0005] Preferably, both quick-release components include cylinders, with mounting blocks fixedly connected to the outer side of the cylinders, first mounting brackets fixedly connected to the tops of the plurality of horizontal mounting columns, and a plurality of second mounting brackets fixedly connected to the top of the main connecting rod. The two cylinders are fixedly connected to the corresponding first and second mounting brackets via the corresponding mounting blocks.

[0006] Preferably, a fixing block is fixedly connected to one side of the mounting connecting block, and a first L-shaped rotating rod and a second L-shaped rotating rod are rotatably connected to the outside of the fixing block. An insertion limiting head is rotatably connected to the end of the first L-shaped rotating rod and the second L-shaped rotating rod that are close to each other. Two sets of limiting blocks corresponding to the insertion limiting heads are fixedly connected to the outside of the seed disc body, and the two sets of insertion limiting heads are respectively inserted into the inner side of the corresponding limiting blocks.

[0007] Preferably, the output end of the cylinder is fixedly connected to an H-shaped rotating seat, and two tie rods are rotatably connected to the inner side of the H-shaped rotating seat. The other ends of the two tie rods are respectively rotatably connected to the corresponding first L-shaped rotating rod and second L-shaped rotating rod.

[0008] Preferably, the grooving assembly includes a grooving shovel, which is located below the seed tray body and is fixedly connected to the inner side of the horizontal mounting column. A seed outlet tube is sleeved on the inner side of the grooving shovel, and the top end of the seed outlet tube is connected to the seed outlet end of the seed tray body.

[0009] Preferably, a first flattening wheel is rotatably connected to the inner side of the end of the horizontal mounting column near the U-shaped drive connecting block, and a second flattening wheel is rotatably connected to the inner side of the end of the horizontal mounting column away from the U-shaped drive connecting block, with a smoothing rod provided on one side of the second flattening wheel.

[0010] Preferably, two cable chains are fixedly connected to the outer side of the horizontal mounting column, and the other end of the two cable chains is fixedly connected to the smoothing bar.

[0011] Preferably, the rolling wheel is a non-slip ground wheel.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This seed metering device allows for quick replacement of seed trays. When replacing the seed tray, activating the cylinder in the quick-release assembly moves the H-shaped rotating seat, which in turn pulls the first and second L-shaped rotating rods to rotate away from each other. This causes the insertion limiting head to disengage from the limiting block on the outside of the seed tray body, thus quickly removing the seed tray. Conversely, reversing the cylinder activation allows the insertion limiting head to re-insert into the limiting block, enabling the installation of a new seed tray. This shortens the seed tray replacement time and ensures efficient progress of the overall sowing operation. 2. This seed metering device with a quick-change seed tray allows for precise trenching during seed metering operations. The grooving shovel in the grooving assembly moves with the seed metering device, precisely opening the seed trench. Seeds from the seed tray body fall orderly into the trench through the seed outlet tube, achieving close coordination between grooving and seed metering. Simultaneously, the first and second flattening wheels on the inner sides of both ends of the horizontal mounting column compact the soil on the front and back sides of the seed trench, avoiding the difference in soil compaction caused by a single flattening wheel only compacting the soil on the back side of the trench. This prevents seeds from shifting or having large differences in burial depth when falling into the trench. Furthermore, the smoothing rod on one side of the second flattening wheel, pulled by a drag chain, further levels the compacted soil, ensuring close contact between the seeds and the soil, creating favorable conditions for seed germination, and thus improving crop emergence rate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a seed metering device with a quickly replaceable seed tray according to the present invention. Figure 2 This is a partial structural diagram of a seed metering device with a quickly replaceable seed tray according to the present invention. Figure 3 This is a schematic diagram of the seed tray body structure of a seed metering device with a quick-change seed tray according to the present invention. Figure 4 This is a schematic diagram of the quick-release component structure of a seed metering device with a quickly replaceable seed tray according to the present invention. Figure 5 This is an enlarged structural diagram of point A of a seed metering device with a quickly replaceable seed tray according to this utility model.

[0014] In the diagram: 1. Main connecting rod; 2. L-shaped bracket; 3. Rolling wheel; 4. U-shaped drive connecting block; 5. Inclined connecting column; 6. Horizontal mounting column; 7. First flattening wheel; 8. Grooving shovel; 9. Second flattening wheel; 10. Cable chain; 11. Smoothing rod; 12. First mounting bracket; 13. Second mounting bracket; 14. Quick-release assembly; 141. Cylinder; 142. Mounting connecting block; 144. Fixing block; 145. First L-shaped rotating rod; 146. Second L-shaped rotating rod; 147. H-shaped rotating seat; 148. Pull rod; 149. Insertion limiting head; 15. Seed tray body; 16. Limiting block; 17. Seed outlet tube. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] like Figure 1-5As shown, a seed metering device with a quick-change seed tray includes a main connecting rod 1. Both ends of the main connecting rod 1 are fixedly connected to L-shaped brackets 2. Rolling wheels 3 are rotatably connected to the ends of the two L-shaped brackets 2 that are far apart from each other. A U-shaped drive connecting block 4 is fixedly connected to the outer side of the main connecting rod 1 near the middle. An external drive device is provided on the inner side of the U-shaped drive connecting block 4. Multiple inclined connecting columns 5 are fixedly connected to the outer side of the main connecting rod 1. A seed tray body 15 is provided on the inner side of the multiple inclined connecting columns 5. Two quick-release components 14 are provided on the outer side of the seed tray body 15. A horizontal mounting column 6 is fixedly connected to the bottom of the multiple inclined connecting columns 5. A slotted component is provided on the inner side of the horizontal mounting column 6. The rolling wheels 3 are anti-slip ground wheels.

[0017] In this embodiment, both quick-release components 14 include cylinders 141. A mounting block 142 is fixedly connected to the outer side of each cylinder 141. First mounting brackets 12 are fixedly connected to the tops of multiple horizontal mounting posts 6. Multiple second mounting brackets 13 are fixedly connected to the top of the main connecting rod 1. The two cylinders 141 are fixedly connected to the corresponding first mounting bracket 12 and second mounting bracket 13 via corresponding mounting blocks 142. A fixing block 144 is fixedly connected to one side of the mounting block 142. A first L-shaped rotating rod 145 and a second L-shaped rotating rod 146 are rotatably connected to the outer side of the fixing block 144. The first L-shaped rotating rod 145 and the second L-shaped rotating rod 146 are rotatably connected to the end of each rod. Two sets of limiting blocks 16 corresponding to the inserting limiting heads 149 are fixedly connected to the outer side of the seed disc body 15. The two sets of inserting limiting heads 149 are respectively inserted into the inner side of the corresponding limiting blocks 16. The output end of the cylinder 141 is fixedly connected to an H-shaped rotating seat 147. Two pull rods 148 are rotatably connected to the inner side of the H-shaped rotating seat 147. The other ends of the two pull rods 148 are rotatably connected to the corresponding first L-shaped rotating rod 145 and the second L-shaped rotating rod 146 respectively.

[0018] Specifically, during operation, the main connecting rod 1 first undertakes the overall connection and structural support functions of all components. The L-shaped brackets 2 fixed at both ends provide a stable mounting base for the rolling wheels 3. Because the rolling wheels 3 adopt an anti-slip ground wheel design, they can effectively prevent slippage during the movement of the seed metering device, ensuring smooth movement. At this time, the external drive device connected to the inner side of the U-shaped drive connecting block 4 transmits power to the main connecting rod 1, thereby driving the entire seed metering device to move along the preset sowing path. At this time, the multiple inclined connecting columns 5 on the outer side of the main connecting rod 1 can support and fix the angle of the corresponding seed tray body 15, ensuring the seed tray body... The seed tray body 15 is always in a stable working posture. When the seed tray body 15 needs to be replaced, the cylinder 141 in the quick-release assembly 14 is activated. The output end of the cylinder 141 pushes the H-shaped rotating seat 147, which in turn drives the two pull rods 148 to pull the first L-shaped rotating rod 145 and the second L-shaped rotating rod 146 to rotate to the opposite side, causing the insertion limiting head 149 to disengage from the limiting block 16 on the outside of the seed tray body 15, thus quickly completing the disassembly of the seed tray body 15. Similarly, reversing the activation of the cylinder 141 allows the insertion limiting head 149 to be reinserted into the limiting block 16, enabling convenient installation of the new seed tray body 15.

[0019] More specifically, the cylinder 141 in this solution is a device that can be purchased commercially by those skilled in the art. No structural modifications have been made to this device, and those skilled in the art are familiar with its working principle and can apply it proficiently based on their professional knowledge. Therefore, this paper will not elaborate further. Furthermore, this solution aims to protect the physical structure, not the circuitry or software control. The mention of the processing circuit in this paper is merely a supplementary explanation of the feasibility and authenticity of this utility model. This utility model does not require protection of the algorithm and circuitry technology. It is worth emphasizing that although this solution does not elaborate on the electronic control program, those skilled in the art can be familiar with and apply it based on their professional knowledge.

[0020] In this embodiment, the grooving assembly includes a grooving shovel 8, which is located below the seed tray body 15 and is fixedly connected to the inner side of the horizontal mounting column 6. A seed outlet tube 17 is sleeved on the inner side of the grooving shovel 8, and the top end of the seed outlet tube 17 is connected to the seed outlet end of the seed tray body 15. A first flattening wheel 7 is rotatably connected to the inner side of the horizontal mounting column 6 near the U-shaped drive connecting block 4, and a second flattening wheel 9 is rotatably connected to the inner side of the horizontal mounting column 6 away from the U-shaped drive connecting block 4. A smoothing rod 11 is provided on one side of the second flattening wheel 9.

[0021] Specifically, when the seeding process begins, the grooving component inside the horizontal mounting column 6 at the bottom of the inclined connecting column 5 operates synchronously. At this time, the grooving shovel 8 moves with the seed metering device to precisely cut seed furrows in the soil. Seeds in the seed tray body 15 fall into the seed furrows in an orderly manner through the seed outlet tube 17 connected to its seed outlet end. Subsequently, the first flattening wheel 7 and the second flattening wheel 9 on the inner sides of both ends of the horizontal mounting column 6 compact the soil on the front and back sides of the seed furrows to ensure that the seeds are in close contact with the soil, creating good conditions for seed germination and ultimately achieving efficient and stable sowing operations.

[0022] In this embodiment, two drag chains 10 are fixedly connected to the outer side of the horizontal mounting column 6, and the other end of the two drag chains 10 is fixedly connected to the smoothing bar 11.

[0023] Specifically, two drag chains 10 are fixedly connected to the outside of the horizontal mounting column 6, which can pull the leveling rod 11 to further level the compacted soil, ensuring that the seeds are in close contact with the soil and improving the germination rate.

[0024] It should be noted that this utility model is a seed metering device with a quick-change seed tray. During operation, the main connecting rod 1 first undertakes the overall connection and structural support functions of each component. The L-shaped brackets 2 fixed at both ends provide a stable mounting base for the rolling wheels 3. Because the rolling wheels 3 adopt an anti-slip ground wheel design, it can effectively prevent slippage during the movement of the seed metering device and ensure smooth movement. At this time, the external drive device connected to the inner side of the U-shaped drive connecting block 4 transmits power to the main connecting rod 1, thereby driving the entire seed metering device to move along the preset sowing path. Once the seeding process begins, multiple inclined connecting columns 5 on the outer side of the main connecting rod 1 support and fix the angle of the corresponding seed tray body 15, ensuring that the seed tray body 15 is always in a stable working posture. At the same time, the grooving component set on the inner side of the horizontal mounting column 6 at the bottom of the inclined connecting column 5 operates synchronously. At this time, the grooving shovel 8 moves with the seed metering device to accurately cut seed furrows in the soil. Seeds in the seed tray body 15 fall into the seed furrows in an orderly manner through the seed outlet tube 17 connected to its seed outlet end. Subsequently, the first flattening wheel 7 and the second flattening wheel 9 on the inner sides of both ends of the horizontal mounting column 6 compact the soil on the front and back sides of the seed furrows, respectively. The smoothing rod 11 on one side of the second flattening wheel 9, under the traction of the drag chain 10, further smooths the compacted soil, ensuring that the seeds are in close contact with the soil and creating good conditions for seed germination, ultimately achieving efficient and stable sowing operations. When the seed tray body 15 needs to be replaced, the cylinder 141 in the quick-release assembly 14 is activated. The output end of the cylinder 141 pushes the H-shaped rotating seat 147, which in turn drives the two pull rods 148 to pull the first L-shaped rotating rod 145 and the second L-shaped rotating rod 146 to rotate to opposite sides, causing the insertion limiting head 149 to disengage from the limiting block 16 on the outside of the seed tray body 15, thus quickly completing the disassembly of the seed tray body 15. Similarly, reversing the cylinder 141 allows the insertion limiting head 149 to be reinserted into the limiting block 16, enabling convenient installation of the new seed tray body 15. The overall operation is efficient, convenient, and highly practical.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A seed metering device with a quick-change seed tray, comprising a main connecting rod (1), characterized in that: Both ends of the main connecting rod (1) are fixedly connected to L-shaped brackets (2), and the ends of the two L-shaped brackets (2) that are far apart are rotatably connected to rolling wheels (3). A U-shaped drive connecting block (4) is fixedly connected to the outer side of the main connecting rod (1) near the middle. An external drive device is provided on the inner side of the U-shaped drive connecting block (4). Multiple inclined connecting columns (5) are fixedly connected to the outer side of the main connecting rod (1). A seed tray body (15) is provided on the inner side of the multiple inclined connecting columns (5). Two quick-release components (14) are provided on the outer side of the seed tray body (15). A horizontal mounting column (6) is fixedly connected to the bottom of the multiple inclined connecting columns (5). A slotted component is provided on the inner side of the horizontal mounting column (6).

2. The seed meter of claim 1, wherein: Both quick-release components (14) include cylinders (141), with mounting blocks (142) fixedly connected to the outer side of the cylinders (141). The tops of the multiple horizontal mounting columns (6) are fixedly connected to first mounting brackets (12), and the tops of the main connecting rod (1) are fixedly connected to multiple second mounting brackets (13). The two cylinders (141) are fixedly connected to the corresponding first mounting brackets (12) and second mounting brackets (13) through the corresponding mounting blocks (142).

3. The seed meter of claim 2, wherein: A fixing block (144) is fixedly connected to one side of the mounting connecting block (142). A first L-shaped rotating rod (145) and a second L-shaped rotating rod (146) are rotatably connected to the outside of the fixing block (144). An insertion limiting head (149) is rotatably connected to the end of the first L-shaped rotating rod (145) and the second L-shaped rotating rod (146) that are close to each other. Two sets of limiting blocks (16) corresponding to the insertion limiting head (149) are fixedly connected to the outside of the seed disc body (15). The two sets of insertion limiting heads (149) are respectively inserted into the inner side of the corresponding limiting block (16).

4. The seed meter of claim 3, wherein: The output end of the cylinder (141) is fixedly connected to an H-shaped rotating seat (147). Two pull rods (148) are rotatably connected to the inner side of the H-shaped rotating seat (147). The other ends of the two pull rods (148) are respectively rotatably connected to the corresponding first L-shaped rotating rod (145) and second L-shaped rotating rod (146).

5. The seed meter of claim 1, wherein: The grooving assembly includes a grooving shovel (8), which is located below the seed tray body (15) and is fixedly connected to the inner side of the horizontal mounting column (6). A seed outlet tube (17) is sleeved on the inner side of the grooving shovel (8), and the top end of the seed outlet tube (17) is connected to the seed outlet end of the seed tray body (15).

6. The seed meter of claim 5, wherein: The horizontal mounting column (6) is rotatably connected to the inner side of the end closest to the U-shaped drive connecting block (4) with a first flattening wheel (7), and the horizontal mounting column (6) is rotatably connected to the inner side of the end furthest from the U-shaped drive connecting block (4) with a second flattening wheel (9), and a smoothing rod (11) is provided on one side of the second flattening wheel (9).

7. The seed meter of claim 6, wherein: The outer side of the transversely-installed column (6) is fixedly connected with two drag chains (10), and the other ends of the two drag chains (10) are fixedly connected with the flattening rod (11).

8. The seed meter of claim 1, wherein: The rolling wheel (3) is an antiskid ground wheel.

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