Peanut seeder

Abstract

The utility model discloses a kind of peanut seeders, including seed tank, fixing frame, connecting frame and seeding disc main body, seed tank is set on fixing frame, fixing frame both sides are connected with seeding disc main body by connecting frame, seed tank is communicated with seeding disc main body by seed guide pipe, seeding disc main body is uniformly arranged with several seed metering duckbills, seed cleaning mechanism is set in seeding disc main body, seed cleaning mechanism is communicated with seed guide pipe, seed cleaning mechanism is movably provided with seed metering mechanism, seed metering mechanism is matched with seed metering duckbill;Adjusting mechanism is provided on seed cleaning mechanism, adjusting mechanism is matched with seed metering mechanism, for adjusting the communication area between seed metering mechanism and seed metering duckbill.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a peanut planter. Background Technology

[0002] Traditional planting methods for peanuts have many shortcomings. Manual planting is inefficient, labor-intensive, and makes it difficult to ensure uniformity and depth, thus affecting the germination rate and uniformity of peanut growth. While some simple planting tools have improved efficiency to some extent, they have deficiencies in precise seed placement and seed quantity control. Some planters also use simple gravity seeding methods, which can easily lead to problems such as seed blockage and missed seeding during the seeding process. Utility Model Content

[0003] The purpose of this invention is to provide a peanut planter in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A peanut planter includes a seed box, a fixed frame, a connecting frame, and a planting tray body. The seed box is mounted on the fixed frame, and the fixed frame is connected to the planting tray body on both sides via the connecting frame. The seed box is connected to the planting tray body via a seed guide tube, providing a channel for seed delivery. Several seed-discharging nozzles are evenly distributed on the planting tray body for sowing seeds into the soil. A seed cleaning mechanism connected to the seed guide tube is installed inside the planting tray body, and a movable seed discharging mechanism is also installed inside. The seed discharging mechanism works in conjunction with the seed discharging nozzles. When the planting tray body rotates, seeds flow into the seed discharging mechanism through the seed cleaning mechanism, and then are discharged through the seed discharging mechanism and the seed discharging nozzles. The seed cleaning mechanism has an adjustment mechanism that works with the seed discharging mechanism to adjust the communication area between the seed discharging mechanism and the seed discharging nozzles, thereby controlling the seeding rate.

[0006] Preferably, the main body of the seeding tray consists of a left mounting plate and a right mounting plate, both of which are connected to the seed-discharging nozzle. Blocks are filled between the left and right mounting plates and the seed-discharging nozzle, and these blocks are connected to the left and right mounting plates respectively. Multiple blocks and the left and right mounting plates form mounting cavities, within which the seed cleaning mechanism and the seed-discharging mechanism are housed. Seed-discharging channels are formed between adjacent blocks, communicating with the seed-discharging nozzle and the seed-discharging mechanism, providing a path for seed discharge.

[0007] Preferably, the left mounting plate, seed cleaning mechanism, seed metering mechanism, and seed guide tube are inserted through the central shaft. The seed cleaning mechanism and seed guide tube are fixedly sleeved on the central shaft to ensure their fixed position; the right mounting plate is movably sleeved on the seed cleaning mechanism, so that the right mounting plate can rotate relative to the seed cleaning mechanism, providing conditions for the rotation of the main body of the seed tray.

[0008] Preferably, the adjusting mechanism consists of an arc-shaped adjusting plate that movably passes through the seed cleaning tray. A pad is provided at one end of the adjusting plate extending beyond the seed cleaning tray. A connecting screw passes between the pad and the seed cleaning tray, and a locking cap is provided at one end of the connecting screw passing through the pad. A spring is fitted onto the connecting screw, with its two ends connected to the pad and the seed cleaning tray, respectively. The arc-shaped adjusting plate cooperates with the seed metering mechanism; by adjusting the position of the arc-shaped adjusting plate, the communication area between the seed metering mechanism and the seed metering channel can be changed, thereby adjusting the seeding rate.

[0009] Preferably, the seed metering mechanism is a seed metering box with several rows of seed metering holes evenly spaced around its circumference. The seed metering holes rotate synchronously with the left and right mounting plates. When a seed metering hole passes through the opening of the arc-shaped adjusting plate, it connects with the seed metering channel, allowing seeds to be discharged through the channel. By adjusting the extension length of the arc-shaped adjusting plate, the number of seed metering holes connected to the seed metering channel can be adjusted, thereby precisely controlling the seeding rate.

[0010] Preferably, an extended guide plate is fitted onto the central shaft on one side of the left mounting plate. A guide wheel is located at the lower part of the extended guide plate, and the guide wheel engages with the paddle connecting rod of the seed metering spout. A torsion spring is fitted onto the horizontal part of the paddle connecting rod. One end of the torsion spring abuts against the bolt between the seed metering spout and the left mounting plate, and the other end is connected to the vertical part of the paddle connecting rod. When the main body of the seeding tray rotates, the paddle connecting rod of the seed metering spout rotates to the area below the extended guide plate and contacts the guide wheel. The paddle connecting rod drives the paddle to rotate, causing the seed metering spout to open and the seeds to be discharged. After passing the guide wheel, the paddle connecting rod resets under the action of the torsion spring, and the seed metering spout closes, thus achieving automatic opening and closing control of the seed metering spout.

[0011] The beneficial effects of this utility model are as follows:

[0012] This invention utilizes a combination of a seed cleaning mechanism, a seed metering mechanism, and an adjustment mechanism. Peanut seeds flow from the seed box through a seed guide tube into the seed cleaning tray. As the main body of the seeding tray rotates, the seed metering device rotates to coincide with the opening of the arc-shaped adjustment plate on the seed cleaning tray. At this point, the seeds fall through the metering holes and openings of the seed metering device into the metering channel, and then into the metering spout. Simultaneously, the spout's paddle opens under the action of the paddle connecting rod and the guide wheel, allowing the seeds to fall into the soil through the spout. By pressing in or pulling out the arc-shaped adjustment plate, the area covered by the plate can be adjusted, precisely controlling the amount and position of seeds discharged, enabling single or multiple seed sowing, improving sowing accuracy, and ensuring uniform growth of peanut seedlings. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the left side of the overall device of this utility model.

[0015] Figure 2 This is a schematic diagram of the right side of the overall device of this utility model.

[0016] Figure 3 This is a schematic diagram of the internal structure of the main body of the seeding tray of this utility model.

[0017] The annotations in the attached figures are explained as follows:

[0018] 1 is the fixed frame, 2 is the seed box, 3 is the seed metering duckbill, 4 is the central shaft, 5 is the seed cleaning tray, 6 is the left mounting plate, 7 is the extension guide plate, 8 is the right mounting plate, 9 is the seed guide tube, 10 is the seed metering box, 11 is the stop block, 12 is the bearing, and 13 is the pad. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-3 The technical solution of this utility model will be further explained below:

[0020] like Figure 1-3 As shown, a peanut planter includes a seed box 2, a fixed frame 1, a connecting frame, and a planting tray body. The seed box 2 is mounted on the fixed frame 1, and the fixed frame 1 is connected to the planting tray body on both sides via the connecting frame. The seed box is connected to the planting tray body via a seed guide tube. Several seed-discharging nozzles 3 are evenly arranged on the planting tray body. In other words, the planter's main frame consists of the planting tray body, the fixed frame, and the seed box. In use, peanut seeds are first poured into the seed box, and the seeds enter the seed cleaning mechanism of the planting tray body through the seed guide tube. The planter is then started, and the planting tray body begins to rotate, allowing the seeds in the seed cleaning mechanism to flow into the seed discharging mechanism. An adjustment mechanism adjusts the communication area between the seed discharging mechanism and the seed-discharging nozzles according to preset planting requirements. As the planting tray body rotates, the seed discharging mechanism sequentially delivers the seeds to the seed-discharging nozzles, which then scatter the seeds into the soil, completing the single-seed or multi-seed planting process.

[0021] It's important to note that seed boxes are typically made of plastic or metal, possessing sufficient strength and corrosion resistance to ensure they won't be damaged during sowing and can be used for a long time. Their shape is generally rectangular or cylindrical, with a volume designed according to actual sowing needs, ranging from 10 to 50 liters to meet the seed supply requirements of different scales of planting. The seed box has an opening at the top for easy seed addition, and a lid can be fitted to the opening to prevent seeds from spilling and debris from entering.

[0022] The mounting frame is constructed from welded metal tubing, such as galvanized steel pipe, providing high strength and stability. Its structure is customized to the overall design of the seeder and its connection to other agricultural equipment. Generally, it is a frame structure that firmly supports the seed box and connects to the main body of the seed tray via a connecting frame. The height of the mounting frame can be between 50-100 cm to facilitate seed addition and observation of the sowing process by the operator.

[0023] The connecting frame is also made of metal, such as angle steel or channel steel, and is connected to the fixing frame and the main body of the seeding tray by welding or bolting. The shape and length of the connecting frame are designed according to the relative position and distance between the fixing frame and the main body of the seeding tray to ensure a stable connection and adaptability to different terrains and seeding operation requirements.

[0024] In some embodiments, such as Figure 3 As shown, the seed tray, as the core component of the seeder, has a diameter designed according to the requirements of seeding efficiency and uniformity, generally between 30 and 60 centimeters. It consists of a left mounting plate, a right mounting plate, a stop block, and a seed metering spout, etc. The overall structure is compact, and the components work together to achieve precise seed sowing.

[0025] Specifically, such as Figure 3 As shown, the main body of the seeding tray includes a left mounting plate 6 and a right mounting plate 8. Both the left mounting plate 6 and the right mounting plate 8 are connected to the seed-dispensing spout 3. A stop block 11 is filled between the left mounting plate 6, the right mounting plate 8, and the seed-dispensing spout 3. The stop block 11 is connected to the left mounting plate 6 and the right mounting plate 8, respectively. In other words, the left mounting plate, the right mounting plate, and the stop block together constitute the skeleton structure of the main body of the seeding tray. The two sides of the seed-dispensing spout are fixed to the left and right mounting plates by iron sheets, and the left and right mounting plates are connected to the triangular stop blocks by bolts.

[0026] It is important to note that the left and right mounting plates are typically made of 3-5 mm thick metal sheets, such as steel or aluminum, processed through stamping, cutting, and welding. Their shapes and dimensions are matched to ensure a tight fit and connection with the seeding duckbill. The left and right mounting plates have mounting holes for connection with the seeding duckbill and stop blocks, secured with bolts or rivets to ensure a secure connection.

[0027] The blocks are typically made of plastic or metal, and are triangular in shape. Their size is determined by the size of the mounting cavity and the design requirements of the seeding channel. The number of blocks is determined by the size of the seed tray and the distribution of the seeding nozzles, generally between 10 and 30. The blocks are connected to the left and right mounting plates respectively using bolts, forming a stable mounting cavity and seeding channel.

[0028] Specifically, a plurality of the aforementioned blocks 11 form an installation cavity with the left mounting plate 6 and the right mounting plate 8. The seed cleaning mechanism and the seed dispensing mechanism are disposed within the installation cavity, and a seed dispensing channel is formed between adjacent blocks, communicating with the seed dispensing nozzle and the seed dispensing mechanism. In other words, the installation cavity accommodates the seed cleaning mechanism and the seed dispensing mechanism, while the seed dispensing channel provides a path for the seeds to be transported from the seed dispensing mechanism to the seed dispensing nozzle. During the rotation of the seed tray body, the seeds in the seed dispensing mechanism enter the seed dispensing nozzle through the seed dispensing channel, achieving orderly seed dispensing.

[0029] During assembly, first install the stop block between the left and right mounting plates to form a mounting cavity and a seed dispensing channel. Then, install the seed cleaning mechanism and the seed dispensing mechanism inside the mounting cavity, ensuring that all components are securely connected. During sowing, the seed dispensing mechanism rotates with the main body of the seed tray, conveying the seeds through the seed dispensing channel to the seed dispensing nozzle, which then scatters the seeds.

[0030] Specifically, such as Figure 1 and 2 As shown, a seed cleaning mechanism is provided inside the main body of the seeding tray. The seed cleaning mechanism is connected to the seed guide tube 9. A seed dispensing mechanism is movably arranged inside the seed cleaning mechanism. The seed dispensing mechanism cooperates with the seed dispensing duckbill 3 so that when the main body of the seeding tray rotates, the seeds flow into the seed dispensing mechanism through the seed cleaning mechanism and are discharged outward through the seed dispensing mechanism and the seed dispensing duckbill. An adjustment mechanism is provided on the seed cleaning mechanism. The adjustment mechanism cooperates with the seed dispensing mechanism to adjust the communication area between the seed dispensing mechanism and the seed dispensing duckbill.

[0031] Seeds in the seed box flow into the seed cleaning mechanism inside the seed tray body through the seed guide tube under the influence of gravity. The seed cleaning mechanism sorts and guides the seeds, directing them into the seed metering mechanism. As the seed tray body rotates, the seed metering mechanism delivers the seeds to the seed metering nozzle. By adjusting the connection area between the seed metering mechanism and the seed metering nozzle, the seeding rate can be adjusted. Finally, the seeds are sown into the soil through the seed metering nozzle.

[0032] In some embodiments, such as Figure 3 As shown, a central shaft 4 passes through the left mounting plate 6, the seed cleaning mechanism, the seed metering mechanism, and the seed guide tube 9. The seed cleaning mechanism and the seed guide tube 9 are fixedly sleeved on the central shaft 4. The right mounting plate 8 is movably sleeved on the seed cleaning mechanism, and a bearing 12 is provided on the central shaft 4. The seed metering box 10 of the seed metering mechanism is sleeved on the bearing 12. In other words, the central shaft, as the core component for the rotation of the seed tray body, provides rotational support for the seed cleaning mechanism, the seed metering mechanism, and the right mounting plate. The seed cleaning mechanism and the seed guide tube are fixed on the central shaft to ensure that seeds can be accurately delivered into the seed cleaning mechanism. The right mounting plate is movably sleeved on the seed cleaning mechanism, allowing the seed tray body to rotate around the central shaft, achieving continuous seed sowing.

[0033] It is important to note that the central shaft is made of high-strength alloy steel, such as 45# steel or 40Cr steel, and has undergone heat treatment, giving it high strength and toughness, capable of withstanding the torque and impact forces generated when the seeding tray rotates. The diameter of the central shaft is selected based on the size of the seeding tray and load requirements, generally between 15-30 mm. Both ends of the central shaft are mounted on the frame or other supporting structure via bearings to ensure smooth rotation.

[0034] The seed cleaning disc and seed guide tube of the seed cleaning mechanism are fixedly sleeved on the central shaft by key connection or welding to ensure that they rotate synchronously with the central shaft and that no relative displacement occurs during operation. When key connection is used, keyways are machined at the mating parts of the central shaft, seed cleaning disc, and seed guide tube, and flat keys are installed to enable reliable torque transmission between them.

[0035] The right-side mounting plate is movably mounted on the seed cleaning mechanism via sliding or rolling bearings. The choice of bearing is determined based on the rotational speed and load of the seed tray body. This movable connection allows the right-side mounting plate to rotate relative to the seed cleaning mechanism while ensuring smooth and precise rotation.

[0036] Specifically, such as Figure 3As shown, the seed cleaning mechanism includes a seed cleaning disc 5, on which an adjustment mechanism is movably mounted. The adjustment mechanism and the seed cleaning disc 5 form an installation area for placing the seed dispensing mechanism. The seed guide tube 9 communicates with the installation area, and an opening communicating with the seed dispensing mechanism is provided between the adjustment mechanism and the seed cleaning disc 5. This allows seeds to flow through the seed guide tube into the installation area, pass through the seed dispensing mechanism and the opening, and fall into the seed dispensing nozzle. In other words, the seed cleaning disc, in cooperation with the adjustment mechanism, provides installation space for the seed dispensing mechanism and guides seeds from the seed guide tube into the installation area, and then through the seed dispensing mechanism and the opening into the seed dispensing nozzle. During the rotation of the seed tray body, the seed cleaning disc plays a role in organizing and guiding the seeds, ensuring that the seeds can be discharged orderly from the seed dispensing mechanism and the opening.

[0037] In actual use, the seeds enter the feed inlet of the seed cleaning tray through the seed guide tube and fall into the installation area formed by the seed cleaning tray and the adjustment mechanism. When the main body of the seeding tray rotates, the seed metering mechanism rotates accordingly. When the seed metering hole on the seed metering mechanism rotates to connect with the opening, the seeds flow into the seed metering duckbill through the seed metering mechanism and the opening.

[0038] It is important to note that seed cleaning trays are generally made of plastic or metal, such as engineering plastics or aluminum alloys. They are disc-shaped, with a diameter slightly smaller than the inner diameter of the main seed tray body to facilitate installation within the mounting cavity. The thickness of the seed cleaning tray is between 5-10 mm to ensure sufficient strength and rigidity. The seed cleaning tray has mounting holes that mate with the adjustment mechanism and a feed inlet that connects to the seed guide tube. The shape and size of the feed inlet are designed according to the dimensions of the seed guide tube to ensure that seeds can flow smoothly into the seed cleaning tray.

[0039] The installation area formed between the seed cleaning tray and the adjustment mechanism is used to place the seed metering mechanism, and its shape and size are matched with the seed metering mechanism. The opening between the adjustment mechanism and the seed cleaning tray is used for seeds to flow out of the seed metering mechanism and fall into the seed metering nozzle. The size and shape of the opening can be designed as single or multiple seeds according to the adjustment requirements of the seeding rate. Generally, the width of the opening is between 2-5 cm and the length is between 5-10 cm.

[0040] Specifically, such as Figure 3As shown, the adjustment mechanism includes an arc-shaped adjustment plate that is movably mounted on the seed cleaning disc 5. A pad 13 is provided at one end of the arc-shaped adjustment plate extending beyond the seed cleaning disc 5. A connecting screw passes between the pad 13 and the seed cleaning disc 5. A locking cap is provided at one end of the connecting screw passing through the pad, and a spring is fitted on the connecting screw. One end of the spring is connected to the pad, and the other end is connected to the seed cleaning disc. The arc-shaped adjustment plate cooperates with the seed metering mechanism to adjust the communication area between the seed metering mechanism and the seed metering channel. That is, by pressing the pad, the pad synchronously drives the arc-shaped adjustment plate to extend inward. After adjustment, the locking cap is turned, ensuring that the locking cap always presses firmly against the pad, so that the extended portion of the arc-shaped adjustment plate always covers one or more rows of seed metering holes in the seed metering mechanism, enabling the seeder to sow single or multiple seeds.

[0041] This embodiment describes single-seed or double-seed sowing in detail. When single-seed sowing is required, the arc-shaped adjusting plate extends to a certain position. At this time, the spring acts as a limit, restricting the extension length of the adjusting plate and preventing it from extending too far. That is, when the pad is pressed all the way down, the spring no longer deforms, and the extension length of the arc-shaped adjusting plate can just cover the outermost row of seed dispensing holes, so that only one row of seed dispensing holes can dispense seeds when passing through the opening position. When double-seed sowing is required, the locking cap is loosened, and the pad quickly returns to its initial position under the action of the spring. At this time, the arc-shaped adjusting plate disengages from the outermost row of seed dispensing holes, and both rows of seed dispensing holes are fully exposed. When passing through the opening position, both rows of seed dispensing holes are sown simultaneously, realizing double-seed sowing.

[0042] It is important to note that the seed metering mechanism and the seed cleaning mechanism together form a complete seed storage cavity. In other words, the seed metering box can be understood as a box without a lid and with multiple holes around the perimeter, while the seed cleaning mechanism is a lid with a notch.

[0043] Specifically, such as Figure 3 As shown, the seed metering mechanism includes a seed metering box 10 with several rows of seed metering holes evenly spaced around its circumference. These holes rotate synchronously with the left and right mounting plates. When a seed metering hole passes through the opening of the arc-shaped adjusting plate, it connects to the seed metering channel. Adjusting the extension length of the arc-shaped adjusting plate adjusts the number of seed metering holes connected to the seed metering channel. In other words, as the seed metering box rotates with the seeding tray, when a seed metering hole passes through the opening of the arc-shaped adjusting plate, the seeds, under the influence of gravity and centrifugal force, pass through the seed metering hole and opening into the seed metering channel, and are then discharged through the seed metering nozzle. By adjusting the extension length of the arc-shaped adjusting plate, the number of seed metering holes connected to the seed metering channel can be changed, thereby achieving precise control of the seeding rate.

[0044] In actual use, as the main body of the seed tray rotates, the seed metering box rotates accordingly. The seeds inside the seed metering box move towards the seed metering holes under centrifugal force. When the seed metering holes align with the opening of the arc-shaped adjusting plate, the seeds enter the seed metering channel through the opening and are then sown into the soil through the seed metering nozzle. By adjusting the position of the arc-shaped adjusting plate, the number of seed metering holes simultaneously connected to the seed metering channel can be adjusted. For example, to increase the sowing rate, more seed metering holes are connected to the seed metering channel; conversely, the number of connected seed metering holes is reduced, thus precisely controlling the sowing rate.

[0045] It is important to note that the seed metering box is made of plastic or metal, such as injection-molded engineering plastic or stamped metal. Its shape is circular or polygonal, adapted to the structure of the seed cleaning tray and the main body of the seeding tray. The diameter of the seed metering box is designed according to the size of the main body of the seeding tray and the seeding requirements, generally between 15-30 cm. The thickness of the seed metering box is between 3-5 mm to ensure sufficient strength.

[0046] The seed metering holes are evenly spaced around the circumference of the seed metering box. The number of rows is set according to the precision of the seeding rate adjustment and the number of seed metering nozzles, generally between 3 and 8 rows. Each row includes at least one seed metering hole. This example uses double seed metering holes. The diameter of the seed metering holes is selected according to the size of the peanut seeds, generally between 5 and 10 mm, to ensure that the seeds can pass through the holes smoothly. The shape of the seed metering holes can be circular, oval, or square, and the design is optimized according to the shape of the seeds and the desired seed metering effect.

[0047] In some embodiments, such as Figure 1 and Figure 2 As shown, an extended guide plate 7 is fitted onto one side of the left mounting plate 6 and onto the central shaft 4. A guide wheel is located at the lower part of the extended guide plate 7. The guide wheel engages with the paddle connecting rod of the seed-discharging duckbill 3. A torsion spring is fitted onto the horizontal part of the paddle connecting rod. One end of the torsion spring abuts against the bolt between the seed-discharging duckbill and the left mounting plate, and the other end is connected to the vertical part of the paddle connecting rod. This allows the paddle connecting rod of the seed-discharging duckbill, which rotates to below the extended guide plate, to contact the guide wheel when the seed tray body rotates. The paddle connecting rod then drives the paddle to rotate, opening the seed-discharging duckbill. After the paddle connecting rod passes the guide wheel, it resets under the influence of the torsion spring, closing the seed-discharging duckbill. In other words, when the seed tray body rotates, the paddle connecting rod of the seed-discharging duckbill rotates with the tray. When the paddle connecting rod rotates to below the extended guide plate, the guide wheel contacts the paddle connecting rod and pushes it to rotate. The paddle connecting rod then drives the paddle to rotate, causing the seed-discharging duckbill to open and the seeds to be discharged. When the paddle linkage passes the guide wheel, the spring force of the torsion spring resets the paddle linkage, causing the paddle to rotate and close the seed metering spout, preventing premature or excessive seed discharge, thus achieving automatic opening and closing control of the seed metering spout and ensuring the accuracy of sowing.

[0048] In practical use, as the main body of the seeding tray rotates, the seed-dispensing nozzles move in a circular motion around the central axis. When the lever connecting rod of a particular seed-dispensing nozzle rotates to below the extended guide plate, the guide wheel contacts the lever connecting rod. The rotation of the guide wheel pushes the lever connecting rod to rotate around its connection point with the seed-dispensing nozzle. The lever connecting rod drives the lever to rotate, opening the seed-dispensing nozzle. At this time, the seeds in the seeding channel are discharged through the seed-dispensing nozzle under the action of gravity. After the lever connecting rod rotates past the guide wheel, the elastic force of the torsion spring causes the lever connecting rod to rotate in the opposite direction. The lever rotates in the opposite direction as well, closing the seed-dispensing nozzle and completing one seed-dispensing action. Throughout the entire sowing process, each seed-dispensing nozzle repeats the above actions sequentially, achieving continuous and accurate sowing.

[0049] It is important to note that the extended guide plate is generally made of bent metal sheet, such as steel plate. Its length is designed according to the diameter of the main seed tray and the distribution of the seed-dispensing nozzles, typically between 10-20 cm. Guide wheels, made of wear-resistant rubber or metal, are installed at the bottom of the extended guide plate and have a diameter between 5-10 cm. The guide wheels are mounted on the extended guide plate via pins or bearings, allowing for flexible rotation.

[0050] The paddle linkage is typically made of metal, with the horizontal and vertical sections formed by welding or integral molding. A torsion spring is fitted onto the horizontal section. The specifications of the torsion spring are selected based on the torque required for the opening and closing of the seeding duckbill. Generally, its stiffness coefficient is within a certain range to ensure sufficient restoring force to close the seeding duckbill without excessive elasticity that would make the paddle linkage difficult to move with the guide wheel. One end of the torsion spring rests against the bolt between the seeding duckbill and the left mounting plate, while the other end connects to the vertical section of the paddle linkage, serving a restoring function.

[0051] 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 claimed utility model.

Claims

1. A peanut planter, comprising a seed box, a fixed frame, a connecting frame, and a planting tray body, wherein the seed box is disposed on the fixed frame, the fixed frame is connected to the planting tray body on both sides via the connecting frame, the seed box is connected to the planting tray body via a seed guide tube, and a plurality of seed-discharging nozzles are evenly arranged on the planting tray body, characterized in that, The seed tray body is equipped with a seed cleaning mechanism, which is connected to the seed guide tube. A seed dispensing mechanism is movably installed within the seed cleaning mechanism. The seed dispensing mechanism cooperates with the seed dispensing nozzle so that when the seed tray body rotates, seeds flow into the seed dispensing mechanism through the seed cleaning mechanism and are discharged outward through the seed dispensing mechanism and the seed dispensing nozzle. An adjustment mechanism is provided on the seed cleaning mechanism, which cooperates with the seed dispensing mechanism to adjust the communication area between the seed dispensing mechanism and the seed dispensing nozzle.

2. The peanut planter as described in claim 1, characterized in that, The main body of the seeding tray includes a left mounting plate and a right mounting plate, both of which are connected to the seed-dispensing spout. A baffle is filled between the left mounting plate, the right mounting plate, and the seed-dispensing spout. The baffle is connected to both the left and right mounting plates. A plurality of the baffles form a mounting cavity with the left and right mounting plates. The seed cleaning mechanism and the seed-dispensing mechanism are disposed within the mounting cavity, and adjacent baffles form a seed-dispensing channel communicating with the seed-dispensing spout and the seed-dispensing mechanism.

3. The peanut planter as described in claim 2, characterized in that, A central shaft is provided between the left mounting plate, the seed cleaning mechanism, the seed dispensing mechanism, and the seed guide tube. The seed cleaning mechanism and the seed guide tube are fixedly sleeved on the central shaft, and the right mounting plate is movably sleeved on the seed cleaning mechanism.

4. The peanut planter as described in claim 3, characterized in that, The seed cleaning mechanism includes a seed cleaning tray, on which an adjustment mechanism is movably inserted. An installation area for placing the seed dispensing mechanism is formed between the adjustment mechanism and the seed cleaning tray. The seed guide tube communicates with the installation area, and an opening communicating with the seed dispensing mechanism is provided between the adjustment mechanism and the seed cleaning tray, so that seeds can flow into the installation area through the seed guide tube, pass through the seed dispensing mechanism and the opening and fall into the seed dispensing nozzle.

5. The peanut planter as described in claim 4, characterized in that, The adjustment mechanism includes an arc-shaped adjustment plate that is movably mounted on the seed cleaning tray. A pad is provided at one end of the arc-shaped adjustment plate that extends out of the seed cleaning tray. A connecting screw passes between the pad and the seed cleaning tray. A locking cap is provided at one end of the connecting screw that passes through the pad, and a spring is sleeved on the connecting screw. One end of the spring is connected to the pad, and the other end of the spring is connected to the seed cleaning tray. The arc-shaped adjustment plate cooperates with the seed dispensing mechanism to adjust the communication area between the seed dispensing mechanism and the seed dispensing channel.

6. The peanut planter as described in claim 5, characterized in that, The seed metering mechanism includes a seed metering box with several rows of seed metering holes evenly distributed around its circumference. The seed metering holes rotate synchronously with the left mounting plate and the right mounting plate. When the seed metering hole passes through the opening of the arc-shaped adjusting plate, the seed metering hole communicates with the seed metering channel. The extension length of the arc-shaped adjusting plate is adjusted to adjust the number of seed metering holes communicating with the seed metering channel.

7. The peanut planter as described in claim 3, characterized in that, An extended guide plate is fitted onto one side of the left mounting plate and onto the central axis. A guide wheel is provided at the lower part of the extended guide plate. The guide wheel cooperates with the paddle connecting rod of the seeding duckbill. A torsion spring is fitted onto the horizontal part of the paddle connecting rod. One end of the torsion spring abuts against the bolt between the seeding duckbill and the left mounting plate, and the other end of the torsion spring is connected to the vertical part of the paddle connecting rod. When the main body of the seeding tray rotates, the paddle connecting rod of the seeding duckbill below the extended guide plate contacts the guide wheel. The paddle connecting rod drives the paddle to rotate, and the seeding duckbill opens. After the paddle connecting rod passes the guide wheel, the paddle connecting rod returns to its original position under the action of the torsion spring, and the seeding duckbill closes.

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