Spacing adjustable medicinal material seeding machine

Abstract

The application provides a distance-adjustable medicinal material seeding machine, and relates to the field of medicinal material seeding machines, which comprises a frame, a seeding box is installed on the frame, a plurality of quantitative wheels are rotationally connected inside the seeding box, quantitative grooves are arranged on the quantitative wheels, a connecting shaft is fixed between the quantitative wheels, a let-in groove is arranged on the lower surface of the seeding box, and a synchronous wheel is fixedly sleeved on the outer surface of the connecting shaft inside the let-in groove. By rotating and pushing the handle, the inclined rod, the connecting seat and the connecting arm are driven to move synchronously, the ground wheel is separated from the ground in the circular motion, and the synchronous adjusting wheel moves to the left under the spring elastic force to keep the synchronous belt always tensioned in the process of the circular motion of the ground wheel, so that the quick cutting of the seeding power is realized in the non-stop state, the waste caused by the continuous discharge of seeds is avoided, the operation is intuitive and convenient, and the hand-pushed small seeding machine is especially suitable for flexible operation in complex land blocks.

Description

Technical Field

[0001] This utility model relates to the field of medicinal herb seeders, and more specifically, to a medicinal herb seeder with adjustable spacing. Background Technology

[0002] With the widespread use of Chinese medicinal herbs in the field of traditional Chinese medicine, the traditional method of relying on the collection of wild medicinal herbs can no longer meet the growing market demand. The cultivation of Chinese medicinal herbs has become the main way to obtain medicinal herbs, and the planting area is increasing year by year. Most Chinese medicinal herbs are propagated by seed cultivation. However, for a long time, the sowing of Chinese medicinal herbs has mainly relied on manual direct sowing operations, which has problems such as being time-consuming and labor-intensive, and uneven sowing. This is not conducive to the absorption of nutrients by medicinal herbs, resulting in slow growth and inconsistent quality. Against this background, various Chinese medicinal herb sowing equipment has emerged. With the help of mechanized sowing equipment, planting efficiency can be effectively improved, and the planting density can be ensured by controlling the amount of material fed during sowing.

[0003] Most existing ground-wheel driven seeders use a rigid connection between the seed metering device and the traveling wheels. As long as the seeder moves and the ground wheels rotate, the seed metering device is forced to continuously discharge seeds. When turning, changing direction, or moving short distances between plots, this linkage mechanism causes seeds to be continuously discharged, resulting in seed waste. Although some seeders use a clutch mechanism to cut off and engage the seed metering power, the existing clutch mechanisms are mostly integrated into the transmission chain or seed metering shaft, which is not intuitive and convenient to operate. Especially in small hand-push seeders, due to structural space limitations, it is often difficult to set up an effective seed metering control device. In view of this, we propose a medicinal herb seeder with adjustable spacing. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the current linkage mechanism causes seeds to be continuously discharged and wasted when turning, making a U-turn or moving short distances between plots.

[0005] To achieve the above-mentioned objectives and improve the aforementioned problems, this utility model provides a medicinal herb seeder with adjustable spacing, including a frame on which a seeder box is mounted. Multiple metering wheels are rotatably connected inside the seeder box, each with a metering groove. A connecting shaft is fixed between the multiple metering wheels. A clearance groove is formed on the lower surface of the seeder box. A synchronous wheel is fixedly fitted onto the outer surface of the connecting shaft inside the clearance groove. A connecting arm is rotatably connected to the lower surface of the seeder box, and a ground wheel is rotatably connected to the connecting arm. A synchronous wheel is also fixedly fitted onto the front surface of the ground wheel. Two mounting plates are fixedly connected to the lower surface of the seeder box, and a first guide rod is fixedly connected between the two mounting plates. An L-shaped plate is slidably fitted onto the outer surface of the first guide rod. A synchronous adjustment wheel is provided on the right side surface of the L-shaped plate. A synchronous belt meshes with the synchronous adjustment wheel between the two synchronous wheels. An opening and closing assembly is provided on the connecting arm.

[0006] As a preferred technical solution of this application, the opening and closing assembly includes a connecting seat, which is fixedly connected to the right side surface of the connecting arm. A diagonal rod is rotatably connected to the connecting seat, and a rotating rod is rotatably connected to the right end of the diagonal rod. A handle is fixedly connected to the right end of the rotating rod, and a crossbar is fixedly connected to the outer surface of the rotating rod.

[0007] As a preferred technical solution of this application, two vertical rods are fixedly connected to the lower surface of the frame, and a support sleeve is fixedly connected to the lower surface of the frame, the support sleeve being movably sleeved on the outer surface of the rotating rod.

[0008] As a preferred technical solution of this application, a spring is fixed between the L-shaped plate and the right mounting plate, a flexible tube is provided on the lower side of the seeding box, and a transmission pipe is fixed on the flexible tube.

[0009] As a preferred technical solution of this application, the lower end of the transmission pipe is provided with a soil-breaking plow, an L-shaped connecting rod is fixedly connected to the right side surface of the transmission pipe, and two second guide rods are fixedly connected to the right side surface of the seeding box.

[0010] As a preferred technical solution of this application, an adjustment plate is slidably sleeved on the outer surface of the second guide rod, and an inclined groove extending to its lower surface is formed on the upper surface of the adjustment plate.

[0011] As a preferred technical solution of this application, the vertical rod of the L-shaped connecting rod slides inside the inclined groove, and an adjusting screw is rotatably connected to the right side surface of the seeding box. The right end of the adjusting screw extends through to the right side surface of the adjusting plate, and the adjusting plate is threadedly connected to the adjusting screw.

[0012] As a preferred technical solution of this application, the right end of the adjusting screw rotates through to the right side surface of the support sleeve, a limiting plate is fixed on the lower surface of the seeding box, and multiple transmission pipes are slidably connected to the limiting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: 1. Through the coordination of the frame, seed box, metering wheel, metering trough, connecting shaft, clearance trough, synchronous wheel, connecting arm, ground wheel, mounting plate, first guide rod, L-shaped plate, synchronous adjusting wheel, synchronous belt, and opening and closing components, the lower synchronous wheel rotates due to the friction between the ground wheel and the ground when the seeder is moving. The synchronous belt drives the connecting shaft and metering wheel to rotate. When the metering wheel rotates, it delivers the seeds quantitatively into the hose to achieve uniform sowing. When turning or moving short distances between plots, the handle is rotated and pushed to drive the inclined rod, connecting seat, and connecting arm to move synchronously, causing the ground wheel to rotate and separate from the ground. At the same time, during the circular motion of the ground wheel, the synchronous adjusting wheel moves to the left under the action of the spring force to keep the synchronous belt taut. This allows for the rapid cutting off of seed discharging power without stopping the machine, avoiding waste caused by continuous seed discharge. The operation is intuitive and convenient, and it is especially suitable for flexible operation of small hand-push seeders in complex plots. 2. Through the cooperation of the frame, seed box, mounting plate, first guide rod, L-shaped plate, synchronous belt, connecting seat, diagonal rod, rotating rod, handle, horizontal bar, vertical bar, support sleeve, spring, hose, transmission pipe, soil-breaking plow, L-shaped connecting rod, second guide rod, adjusting plate, inclined groove, adjusting screw, and limiting plate, when it is necessary to adjust the seeding spacing between multiple transmission pipes, rotating the adjusting screw drives the adjusting plate to move horizontally along the second guide rod. The inclined groove on the adjusting plate presses the vertical bar of the L-shaped connecting rod. Because the L-shaped connecting rod is restricted by the cooperation of the transmission pipe and the limiting plate, it can only move in the front-back direction, thus converting the horizontal movement of the adjusting plate into the synchronous front-back movement of multiple transmission pipes. This achieves synchronous and equidistant adjustment of the seeding spacing of multiple rows, making the operation simple and efficient. Furthermore, the cooperation of the handle with the horizontal and vertical bars achieves locking after the ground wheel is raised, ensuring that the seeding remains cut off during turning or transfer. This significantly improves the adaptability of the medicinal herb seeder to the planting spacing requirements of different varieties of medicinal herbs and the ease of operation. Attached Figure Description

[0014] Figure 1 A schematic diagram of the adjustable-spacing medicinal herb seeder provided in this application; Figure 2 A schematic diagram of the first bottom structure of the seed box in the adjustable-spacing medicinal herb seeder provided in this application; Figure 3 A schematic diagram of the structure of the second bottom part of the adjustable-spacing medicinal herb seeder provided in this application; Figure 4 A schematic diagram of the metering wheel in the adjustable-spacing medicinal herb seeder provided in this application; Figure 5 The adjustable spacing medicinal herb seeder provided in this application Figure 3 Enlarged view of point A in the middle.

[0015] The image shows: 1. Frame; 2. Seeding box; 3. Metering wheel; 4. Metering trough; 5. Connecting shaft; 6. Clearance groove; 7. Synchronizing wheel; 8. Connecting arm; 9. Ground wheel; 10. Mounting plate; 11. First guide rod; 12. L-shaped plate; 13. Synchronizing adjusting wheel; 14. Synchronizing belt; 15. Connecting seat; 16. Diagonal bar; 17. Rotating rod; 18. Handle; 19. Horizontal bar; 20. Vertical bar; 21. Support sleeve; 22. Spring; 23. Hose; 24. Transmission pipe; 25. Soil-breaking plow; 26. L-shaped connecting rod; 27. Second guide rod; 28. Adjusting plate; 29. ​​Diagonal trough; 30. Adjusting screw; 31. Limiting plate. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0017] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0018] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] Example 1 Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5An adjustable-spacing medicinal herb seeder includes a frame 1, on which a seeder box 2 is mounted. Multiple metering wheels 3 for quantitative seed delivery are rotatably connected inside the seeder box 2. Each metering wheel 3 has a metering groove 4 for temporary seed storage. A connecting shaft 5 is fixed between the multiple metering wheels 3. A clearance groove 6 is formed on the lower surface of the seeder box 2. A synchronous wheel 7 for power transmission is fixedly fitted onto the outer surface of the connecting shaft 5 inside the clearance groove 6. A connecting arm 8 is rotatably connected to the lower surface of the seeder box 2. A ground wheel 9 for contacting the ground and rotating is rotatably connected to the connecting arm 8. A synchronous wheel 7 is also fixedly fitted onto the front surface of the ground wheel 9. Two mounting plates 10 are fixedly connected to the lower surface of the seeder box 2. A first guide rod 11 for guiding is fixedly connected between the two mounting plates 10. An L-shaped plate 12 is slidably fitted onto the outer surface of the first guide rod 11. A synchronous adjustment wheel 13 is provided on the right side surface of the L-shaped plate 12. A synchronous belt 14 meshes and drives the two synchronous wheels 7 and the synchronous adjustment wheel 13. An opening and closing assembly is provided on the connecting arm 8.

[0021] Through the coordination of the frame 1, seed box 2, metering wheel 3, metering trough 4, connecting shaft 5, clearance groove 6, synchronous wheel 7, connecting arm 8, ground wheel 9, mounting plate 10, first guide rod 11, L-shaped plate 12, synchronous adjusting wheel 13, synchronous belt 14, and opening / closing assembly, when the seeder is moving, the friction between the ground wheel 9 and the ground drives the lower synchronous wheel 7 to rotate. The synchronous belt 14 then drives the connecting shaft 5 and metering wheel 3 to rotate. When the metering wheel 3 rotates, it meterly delivers seeds into the hose 23 for uniform sowing. When needed... When turning or moving short distances between plots, the handle 18 is rotated and pushed, causing the inclined rod 16, connecting seat 15 and connecting arm 8 to move synchronously, making the ground wheel 9 rotate and separate from the ground. At the same time, during the rotation of the ground wheel 9, the synchronous adjustment wheel 13 moves to the left under the elastic force of the spring 22 to keep the synchronous belt 14 always taut. This allows for the rapid cutting off of seed discharge power without stopping the machine, avoiding waste caused by continuous seed discharge. The operation is intuitive and convenient, and it is especially suitable for flexible operation of small hand-push seeders between complex plots.

[0022] Example 2 The adjustable-spacing herb seeder provided in Example 1 has been further optimized, specifically, as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the opening and closing assembly includes a connecting seat 15 providing a rotating connection function. The connecting seat 15 is fixedly connected to the right side surface of the connecting arm 8. A diagonal rod 16 for connection is rotatably connected to the connecting seat 15. A rotating rod 17 is rotatably connected to the right end of the diagonal rod 16. A handle 18 is fixedly connected to the right end of the rotating rod 17. A horizontal bar 19 is fixedly connected to the outer surface of the rotating rod 17. Two vertical rods 20 for limiting are fixedly connected to the lower surface of the frame 1. A support sleeve 21 for support and limiting is fixedly connected to the lower surface of the frame 1. The support sleeve 21 is movably sleeved on the outer surface of the rotating rod 17. A spring 22 is fixed between the L-shaped plate 12 and the right side mounting plate 10. A flexible hose 23 for seed delivery is provided on the lower side of the seeding box 2. A transmission pipe 24 is fixed on the flexible hose 23. The lower end of the transmission pipe 24... The device includes a soil-breaking plow 25, an L-shaped connecting rod 26 fixedly connected to the right side surface of the transmission pipe 24, two second guide rods 27 fixedly connected to the right side surface of the seed box 2, an adjusting plate 28 slidably fitted on the outer surface of the second guide rods 27, a sloping groove 29 extending to the lower surface of the adjusting plate 28 for adjusting the horizontal spacing of the L-shaped connecting rods 26, the vertical rod of the L-shaped connecting rod 26 sliding inside the sloping groove 29, an adjusting screw 30 rotatably connected to the right side surface of the seed box 2, the right end of the adjusting screw 30 threaded through the right side surface of the adjusting plate 28, and the right end of the adjusting screw 30 rotatably through the right side surface of the support sleeve 21, a limiting plate 31 fixedly fixed to the lower surface of the seed box 2, and multiple transmission pipes 24 slidably connected to the limiting plate 31.

[0023] Through the coordination of the frame 1, seed box 2, mounting plate 10, first guide rod 11, L-shaped plate 12, synchronous belt 14, connecting seat 15, diagonal rod 16, rotating rod 17, handle 18, horizontal bar 19, vertical bar 20, support sleeve 21, spring 22, hose 23, transmission pipe 24, soil-breaking plow 25, L-shaped connecting rod 26, second guide rod 27, adjusting plate 28, inclined groove 29, adjusting screw 30, and limiting plate 31, when it is necessary to adjust the seeding spacing between multiple transmission pipes 24, rotating the adjusting screw 30 drives the adjusting plate 28 to move horizontally along the second guide rod 27. The inclined groove 29 on plate 8 presses against the vertical rod of the L-shaped connecting rod 26. Since the L-shaped connecting rod 26 is restricted by the cooperation of the transmission pipe 24 and the limiting plate 31, it can only move in the front and back direction. This converts the horizontal movement of the adjusting plate 28 into the synchronous front and back movement of multiple transmission pipes 24, realizing the synchronous and equidistant adjustment of the spacing between multiple rows of seeds. The operation is simple and efficient. Furthermore, the locking of the ground wheel 9 after it is raised is achieved through the cooperation of the handle 18 with the horizontal bar 19 and the vertical bar 20, ensuring that the seeding remains cut off during turning or transfer. This significantly improves the adaptability of the herb seeder to the planting spacing requirements of different varieties of herb and the ease of operation.

[0024] The space in which the metering wheel 3 rotates is connected to the inside of the hose 23. When the metering wheel 3 rotates, it can deliver the seeds into the inside of the hose 23. The movable connection mentioned in the text refers to the ability to rotate, slide, and shake within a certain range.

[0025] The usage process of the adjustable-spacing medicinal herb seeder provided by this utility model is as follows: When sowing Chinese medicinal herbs, the seeds are first placed inside the sowing box 2, and the ground wheel 9 is brought into contact with the ground. During movement, the friction between the ground wheel 9 and the ground synchronously drives the lower synchronous wheel 7 to rotate. Since the two synchronous wheels 7 are meshed with a synchronous adjusting wheel 13 via a synchronous belt 14, the rotation of the ground wheel 9 synchronously drives the connecting shaft 5 to rotate. This, in turn, drives the metering wheel 3 to rotate. The metering wheel 3 then quantitatively delivers the seeds into the flexible tube 23, achieving uniform sowing. When turning or moving between short plots, the handle 18 can be rotated 90 degrees to separate the horizontal bar 19 from the vertical bar 20. Pushing forward then drives the diagonal bar 16, connecting seat 15, and connecting arm 8 to move synchronously, thereby causing the ground wheel 9 to rotate in a circular motion. When wheel 9 separates from the ground, and during the circular motion of wheel 9, because it is closer to the synchronous adjustment wheel 13, the synchronous belt 14 becomes slightly loose, thus releasing the elastic force of spring 22, causing the synchronous adjustment wheel 13 to move to the left, keeping the synchronous belt 14 always taut. After wheel 9 is lifted, handle 18 is turned 90 degrees again, so that the horizontal bar 19 contacts the left vertical bar 20, preventing wheel 9 from contacting the ground. When adjusting the spacing of multiple transmission tubes 24, the adjusting plate 28 can be moved horizontally by rotating the adjusting screw 30. However, because the L-shaped connecting rod 26 is restricted by the transmission tube 24 and the limiting plate 31, it cannot move left or right, but can only move forward and backward horizontally. With the help of the squeezing of the inclined groove 29 and the L-shaped connecting rod 26, the spacing of multiple transmission tubes 24 is adjusted synchronously, thereby realizing the adjustment of the sowing spacing.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A distance-adjustable medicinal material seeder, characterized in that, The device includes a frame (1), on which a seed box (2) is mounted. Multiple metering wheels (3) are rotatably connected inside the seed box (2). Metering grooves (4) are provided on the metering wheels (3). A connecting shaft (5) is fixed between the multiple metering wheels (3). A clearance groove (6) is provided on the lower surface of the seed box (2). A synchronous wheel (7) is fixedly fitted on the outer surface of the connecting shaft (5) inside the clearance groove (6). A connecting arm (8) is rotatably connected to the lower surface of the seed box (2), and a ground wheel is rotatably connected to the connecting arm (8). (9) The front surface of the ground wheel (9) is also fixed with a synchronous wheel (7). The lower surface of the seed box (2) is fixedly connected with two mounting plates (10). A first guide rod (11) is fixedly connected between the two mounting plates (10). An L-shaped plate (12) is slidably sleeved on the outer surface of the first guide rod (11). A synchronous adjustment wheel (13) is provided on the right side surface of the L-shaped plate (12). A synchronous belt (14) meshes and drives between the two synchronous wheels (7) and the synchronous adjustment wheel (13). An opening and closing assembly is provided on the connecting arm (8).

2. The adjustable spacing herb seeding machine according to claim 1, characterized in that, The opening and closing assembly includes a connecting seat (15), which is fixedly connected to the right side surface of the connecting arm (8). A diagonal rod (16) is rotatably connected to the connecting seat (15), and a rotating rod (17) is rotatably connected to the right end of the diagonal rod (16). A handle (18) is fixedly connected to the right end of the rotating rod (17), and a crossbar (19) is fixedly connected to the outer surface of the rotating rod (17).

3. The adjustable spacing herb seeding machine according to claim 2, characterized in that, Two vertical rods (20) are fixedly connected to the lower surface of the frame (1), and a support sleeve (21) is fixedly connected to the lower surface of the frame (1). The support sleeve (21) is movably sleeved on the outer surface of the rotating rod (17).

4. The adjustable spacing herb seeding machine according to claim 3, characterized in that, A spring (22) is fixed between the L-shaped plate (12) and the right mounting plate (10). A flexible hose (23) is provided on the lower side of the seeding box (2), and a transmission pipe (24) is fixed on the flexible hose (23).

5. A medicinal herb seeder with adjustable spacing according to claim 4, characterized in that, The lower end of the transmission pipe (24) is provided with a soil-breaking plow (25), and an L-shaped connecting rod (26) is fixedly connected to the right side surface of the transmission pipe (24). Two second guide rods (27) are fixedly connected to the right side surface of the seed box (2).

6. A medicinal herb seeder with adjustable spacing according to claim 5, characterized in that, An adjusting plate (28) is slidably sleeved on the outer surface of the second guide rod (27), and an inclined groove (29) extending to its lower surface is provided on the upper surface of the adjusting plate (28).

7. A medicinal herb seeder with adjustable spacing according to claim 6, characterized in that, The vertical rod of the L-shaped connecting rod (26) slides inside the inclined groove (29). The right side surface of the seed box (2) is rotatably connected to the adjusting screw (30). The right end of the adjusting screw (30) extends through to the right side surface of the adjusting plate (28). The adjusting plate (28) is threadedly connected to the adjusting screw (30).

8. A medicinal herb seeder with adjustable spacing according to claim 7, characterized in that, The right end of the adjusting screw (30) rotates through to the right side surface of the support sleeve (21), and the lower surface of the seed box (2) is fixed with a limiting plate (31). The multiple transmission pipes (24) are slidably connected to the limiting plate (31).

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