Soybean seedling spacing adjuster

By using a two-way lead screw and gear chain transmission system for the soybean seedling spacing adjuster, the problems of low efficiency and insufficient precision in adjusting the spacing of traditional soybean planters are solved. This achieves precise control of the spacing and uniformity of sowing, thereby improving seed survival rate and planting efficiency.

CN223786588UActive Publication Date: 2026-01-13鄄城县阎什镇农业综合服务中心
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Patent Information

Application Number
CN202520390173.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-01-13
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

Traditional soybean planters rely on manual adjustment for plant spacing, which is inefficient and lacks precision. Furthermore, the equipment is complex, energy-intensive, and cannot adapt to different soil conditions and planting needs, resulting in poor sowing uniformity.

Method used

The soybean seedling spacing adjuster includes a fixed frame, a sowing component, an adjustment component, and a moving wheel. The distance of the furrow opener is adjusted by a two-way screw and a rotating handle. Combined with gear and chain transmission, the sowing continuity is achieved. The soil is covered by a closed wheel component, and the feed pipe adapts to changes in position.

Benefits of technology

It enables precise control of plant spacing, reduces labor intensity, improves sowing efficiency and quality, avoids reseeding and missed sowing, enhances the adaptability of the device and seed survival rate, and simplifies the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a soybean seedling interplant spacing adjuster, relates to agricultural planting equipment technical field, wherein, the soybean seedling interplant spacing adjuster includes fixed mount, seeding subassembly, adjusting subassembly and two moving wheels, the both sides of fixed mount front end are respectively fixed with axle seat, on the axle seat is provided with rotating axle, the two moving wheels are respectively symmetrically arranged on the rotating axle, the axle seat is fixed on the fixed mount front end, and the two moving wheels are fixed on the fixed mount front end. The adjusting assembly is arranged at the bottom end of the fixing frame. According to the utility model, the distance between the furrow openers can be conveniently adjusted through the two-way lead screw and the rotating handle in the adjusting assembly, so that the planting distance of soybean sowing is accurately controlled, complicated measurement and batch sowing in a traditional mode are not needed, and the labor intensity and the workload are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural planting equipment technology, and in particular to a soybean seedling spacing adjuster. Background Technology

[0002] Traditional soybean planters rely on manual adjustment for plant spacing, which is inefficient and lacks precision. Some machines use a fixed furrow opener structure, which cannot adapt to different soil conditions or planting needs, resulting in poor sowing uniformity. The power transmission system is complex, energy-intensive, and has high maintenance costs.

[0003] Therefore, a simple and easy-to-adjust plant spacing adjustment device is needed to improve sowing efficiency and quality. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a soybean seedling spacing adjuster, comprising a fixed frame, a sowing component, an adjustment component, and two movable wheels. Shaft seats are fixedly installed on both sides of the front end of the fixed frame, and a rotating shaft is provided on each shaft seat. The two movable wheels are symmetrically arranged on the rotating shaft, and the adjustment component is located at the bottom end of the fixed frame.

[0005] The adjustment assembly includes a trencher, a mounting rod, mounting components, a double-acting screw, a rotating handle, and a mounting box. The mounting box contains a double-acting screw, with both ends mounted on the mounting box via bearings. One side of the double-acting screw passes through the mounting box and is connected to the rotating handle. Mounting components are symmetrically arranged on both sides of the double-acting screw, and these mounting components are rotatably connected to the double-acting screw. The bottom of the mounting box has a limiting hole for use with the mounting components. The bottom of the mounting components has a mounting rod, and the bottom of the mounting rod has the trencher.

[0006] The seeding component is mounted on the fixed frame and located behind the adjusting component;

[0007] The rear end of the fixing frame is provided with a push handle;

[0008] The front end of the fixed frame is provided with a drive component, the output end of the drive component is provided with a gear one, the two sides of the rotating shaft are respectively provided with a gear two and a gear three, the gear one and the gear two are connected by a chain, the seeding component is provided with a gear four, and the gear three and the gear four are connected by a chain.

[0009] The rear end of the fixing frame is provided with a closing wheel assembly.

[0010] Preferably, the sowing assembly includes a seed box bracket, a sowing shaft, a seed box, a discharge hopper, a sowing wheel, a guide hopper, and a guide pipe. The seed box bracket is mounted on the fixed frame, the seed box is mounted on the seed box bracket, the bottom of the seed box is provided with a discharge hopper, the discharge hopper is provided with a sowing wheel inside, the sowing shaft is arranged horizontally, the sowing wheel is fixedly mounted on the sowing shaft, and one end of the sowing shaft is provided with the fourth gear. The bottom of the discharge hopper is provided with a guide hopper, the bottom of the guide hopper is provided with a guide pipe, and the bottom end of the guide pipe is located at the furrow opener.

[0011] Preferably, the feed tube is a retractable flexible tube.

[0012] Preferably, the closed wheel assembly includes two symmetrically arranged closed wheel groups and a connecting rod, wherein the connecting rod is disposed at the top of the closed wheel group and is disposed on the fixed frame.

[0013] Preferably, the closed wheel assembly includes a first closed wheel, a second closed wheel, a mounting shaft, and a mounting block. The first closed wheel and the second closed wheel are symmetrically arranged and inclined between each other. The first closed wheel and the second closed wheel are respectively provided with a mounting shaft, and the end of the mounting shaft away from the first closed wheel and the second closed wheel is provided on the mounting block.

[0014] Preferably, the outer surfaces of both the first closed wheel and the second closed wheel are treated with anti-slip material.

[0015] Beneficial effects: Compared with the prior art, this utility model can easily adjust the distance between furrow openers by adjusting the bidirectional lead screw and rotating handle in the component, thereby accurately controlling the plant spacing of soybeans. It eliminates the need for complicated measurement and batch sowing as in the traditional method, reducing labor intensity and workload.

[0016] The drive assembly uses gears and chains to drive the rotation of the moving wheels, which in turn drives the sowing wheel of the sowing assembly. This ensures the continuity of sowing during movement, facilitates uniform sowing, and avoids problems such as double sowing and missed sowing.

[0017] The closed wheel assembly can close the soil around the sown seeds, allowing the seeds to be better covered under the soil and preventing them from being exposed and eaten by birds, thus improving the seed survival rate and helping to ensure soybean yield.

[0018] The feed tube is a retractable flexible tube, which can adapt to the positional changes of the furrow opener during the adjustment of plant spacing, ensuring that the seeds can fall accurately into the opened furrows, thus improving the adaptability of the device to different plant spacing adjustments.

[0019] The overall structure of the device is relatively simple. It is moved by pushing the handle, and the plant spacing adjustment and sowing can be completed by turning the handle. It is easy for operators to master and use, which improves the efficiency and quality of soybean planting. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a top view of the present invention.

[0022] Figure 3 This is a side view of the present invention.

[0023] Figure 4 This is a schematic diagram of the adjustment component of this utility model.

[0024] In the attached diagram: 1-Fixed frame, 2-Sowing assembly, 201-Seed box bracket, 202-Sowing shaft, 203-Seed box, 204-Discharge hopper, 205-Sowing wheel, 206-Guide hopper, 207-Guide pipe, 3-Adjustment assembly, 301-Furrow opener, 302-Mounting rod, 303-Mounting piece, 304-Double lead screw, 305-Rotating handle, 306-Mounting box, 307-Limiting hole, 4-Moving wheel, 5-Closed wheel assembly, 501-Closed wheel group, 5011-Closed wheel one, 5012-Closed wheel two, 5013-Mounting shaft, 5014-Mounting block, 502-Connecting rod, 6-Rotating shaft, 7-Drive assembly, 8-Gear one, 9-Gear two, 10-Gear three, 11-Gear four, 12-Push handle. Detailed Implementation

[0025] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0026] Example

[0027] Please refer to the accompanying drawings in the specification. In this embodiment of the invention, a soybean seedling spacing adjuster includes a fixed frame 1, a sowing component 2, an adjustment component 3, and two movable wheels 4. Shaft seats are fixedly installed on both sides of the front end of the fixed frame 1, and rotating shafts 6 are mounted on the shaft seats. The two movable wheels 4 are symmetrically arranged on the rotating shafts 6, allowing the entire adjuster to move on the ground via the wheels. This provides a mobile support base for the adjuster during field operations, facilitating operation in different positions. A push handle allows the operator to easily push the entire device forward or turn it. The adjustment component 3 is located at the bottom end of the fixed frame 1.

[0028] The adjustment assembly 3 includes a trencher 301, a mounting rod 302, a mounting component 303, a double-acting screw 304, a rotating handle 305, and a mounting box 306. The mounting box 306 houses the double-acting screw 304, with both ends mounted on the mounting box 306 via bearing seats. One side of the double-acting screw 304 passes through the mounting box 306 and is connected to the rotating handle 305. Mounting components 303 are symmetrically arranged on both sides of the double-acting screw 304, and are rotatably connected to the double-acting screw 304. The bottom of the mounting box 306 has a limiting hole 307 for use with the mounting component 303. The bottom of the mounting component 303 has a mounting rod 302, and the bottom of the mounting rod 302 has the trencher 301. The mounting box in the adjustment assembly houses the double-acting screw, with both ends fixed to the mounting box via bearing seats. The rotating handle is connected to one side of the double-acting screw. When the handle is turned, the double-sided lead screw begins to rotate. Because the symmetrically arranged mounting parts on both sides of the double-sided lead screw are rotatably connected to it, and because the bottom of the mounting box has limit holes restricting the movement direction of the mounting parts, the rotation of the double-sided lead screw will cause the mounting parts on both sides to move towards or away from each other along the lead screw. The bottom of the mounting parts is connected to a mounting rod, and the bottom of the mounting rod is connected to a furrow opener, thereby adjusting the distance between the two furrow openers and achieving the purpose of adjusting the spacing between soybean seedlings.

[0029] The seeding component 2 is mounted on the fixed frame 1 and located behind the adjusting component 3;

[0030] The rear end of the fixing frame 1 is provided with a push handle 12;

[0031] The front end of the fixed frame 1 is provided with a drive component 7, the output end of the drive component 7 is provided with a gear 8, the two sides of the rotating shaft 6 are respectively provided with a gear 9 and a gear 10, the gear 9 and the gear 2 are connected by a chain, the seeding component 2 is provided with a gear 11, the gear 10 and the gear 11 are connected by a chain.

[0032] The rear end of the fixed frame 1 is provided with a closed wheel assembly 5.

[0033] The sowing assembly 2 includes a seed box bracket 201, a sowing shaft 202, a seed box 203, a discharge hopper 204, a sowing wheel 205, a guide hopper 206, and a guide pipe 207. The seed box bracket 201 is mounted on the fixed frame 1, and the seed box 203 is mounted on the seed box bracket 201. The bottom end of the seed box 203 is provided with a discharge hopper 204, and the sowing wheel 205 is disposed inside the discharge hopper 204. The sowing shaft 202 is arranged horizontally, and the sowing wheel 205... 5. A fixed assembly is mounted on the sowing shaft 202, with a gear 4 11 at one end of the sowing shaft 202; a guide hopper 206 is mounted at the bottom of the discharge hopper 204, and a guide pipe 207 is mounted at the bottom of the guide hopper 206, with the bottom of the guide pipe 207 positioned at the furrow opener 301; a seed box is mounted on a seed box support, with a discharge hopper at the bottom of the seed box containing a sowing wheel, which is fixed to a horizontally mounted sowing shaft, with a gear 4 at one end of the sowing shaft. When the drive assembly operates, gear 1 at the output end of the drive assembly drives gear 2 on the rotating shaft to rotate via a chain, and gear 3 on the other side of the rotating shaft also rotates accordingly. Gear 3, in turn, drives gear 4 on the sowing assembly to rotate via a chain, thereby causing the sowing shaft to drive the sowing wheel to rotate. Under the action of the sowing wheel, the seeds in the seed box enter the guide hopper from the discharge hopper, and then fall into the furrow opened by the furrow opener through the guide pipe, completing the sowing process. The feed pipe is a retractable flexible hose, which can adapt to changes in the distance between the trencher and the discharge hopper.

[0034] The closed wheel assembly 5 includes two symmetrically arranged closed wheel groups 501 and a connecting rod 502. The connecting rod 502 is located at the top of the closed wheel group 501 and is mounted on the fixed frame 1.

[0035] The closed wheel assembly 501 includes a first closed wheel 5011, a second closed wheel 5012, a mounting shaft 5013, and a mounting block 5014. The first closed wheel 5011 and the second closed wheel 5012 are symmetrically arranged and inclined towards each other. Each of the first and second closed wheels 5011 has a mounting shaft 5013, with one end of the mounting shaft 5013 away from the first and second closed wheels 5012 mounted on the mounting block 5014. The closed wheel assembly includes two symmetrically arranged closed wheel groups. The first and second closed wheels are symmetrically and inclined. When the device moves in the field, the first and second closed wheels roll along with the device, pushing the soil on both sides of the furrow opened by the furrow opener towards the center, thus covering the seeds with soil after sowing, completing the final step after sowing and ensuring normal seed growth and development. The outer surfaces of closed wheels one and two are treated with anti-slip material to increase friction with the soil and better complete the covering work.

[0036] Working principle: Rotating the handle 305 causes the double-acting screw 304 to rotate within the mounting box 306. Because the threads on both sides of the double-acting screw 304 are in opposite directions, the mounting component 303, rotatably connected to the double-acting screw 304, moves along the double-acting screw 304 to the sides or center under its rotation. During movement, the mounting component 303 is limited to linear motion in the up-down direction by the limiting hole 307 at the bottom of the mounting box 306. The bottom end of the mounting component 303 is connected to the mounting rod 302, which moves up and down with the movement of the mounting component 303. This movement, in turn, causes the furrow opener 301 at the bottom of the mounting rod 302 to move up and down, adjusting the depth of the furrow opener 301 into the soil and creating furrows suitable for soybean planting. When drive assembly 7 is activated, its output drives gear 8 to rotate. Gear 8 drives gear 9 to rotate via a chain. Gear 9 is connected to rotating shaft 6, and the rotation of rotating shaft 6 drives gears 10 on both sides to rotate. Gear 10 drives gear 11 on sowing assembly 2 to rotate via a chain. Gear 11 is connected to sowing shaft 202, causing sowing shaft 202 to rotate. Sowing wheel 205, fixedly mounted on sowing shaft 202, rotates accordingly. Sowing wheel 205 rotates within discharge hopper 204 at the bottom of seed box 203, carrying soybean seeds out of seed box 203. The seeds are then sown into furrows opened by furrow opener 301 via guide hopper 206 at the bottom of discharge hopper 204 and retractable guide pipe 207. During the movement of the device, the closed wheel assembly 5 located at the rear end of fixed frame 1 moves accordingly. In the closed wheel assembly 501, closed wheel one 5011 and closed wheel two 5012 are symmetrically and inclinedly arranged. When the device moves, they gather the soil from both sides of the furrow opened by the furrow opener towards the center, covering the sown furrows with soil and completing the soil covering operation after sowing. At the same time, the anti-slip treatment on the outer surface of closed wheel one 5011 and closed wheel two 5012 ensures better contact with the ground during the soil covering process, allowing for stable soil covering.

[0037] In summary, this invention allows for convenient adjustment of the distance between furrow openers by adjusting the bidirectional lead screw and rotating handle in the assembly, thereby precisely controlling the plant spacing of soybeans. Unlike traditional methods, it eliminates the need for complex measurements and batch sowing, reducing labor intensity and workload. The drive assembly, through gear and chain transmission, enables the rotation of the moving wheels to drive the sowing wheel of the sowing assembly, ensuring continuous sowing during movement, promoting uniform sowing, and avoiding double sowing and missed sowing.

[0038] The closing wheel assembly seals off the soil around the sown seeds, ensuring better seed coverage and preventing them from being eaten by birds, thus improving seed survival rate and contributing to soybean yield. The feed tube is a retractable flexible hose, adapting to changes in the furrow opener's position during plant spacing adjustments, ensuring seeds accurately fall into the prepared furrows and enhancing the device's adaptability to different plant spacing adjustments. The overall device structure is relatively simple; it is moved by pushing a handle, and plant spacing adjustment and sowing are completed by turning the handle, making it easy for operators to master and use, improving the efficiency and quality of soybean planting.

[0039] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A soybean seedling spacing adjuster, characterized in that: It includes a fixed frame (1), a seeding component (2), an adjustment component (3) and two moving wheels (4). The fixed frame (1) has a shaft seat fixedly installed on both sides of the front end. The shaft seat is provided with a rotating shaft (6). The two moving wheels (4) are symmetrically arranged on the rotating shaft (6). The adjustment component (3) is located at the bottom end of the fixed frame (1). The adjustment assembly (3) includes a trencher (301), a mounting rod (302), a mounting component (303), a double-acting screw (304), a rotating handle (305), and a mounting box (306). The mounting box (306) is equipped with a double-acting screw (304). Both ends of the double-acting screw (304) are respectively mounted on the mounting box (306) via bearing seats. One side of the double-acting screw (304) passes through the mounting box (306) and is connected to the rotating handle (305). Mounting components (303) are symmetrically arranged on both sides of the double-acting screw (304), and the mounting components (303) are rotatably connected to the double-acting screw (304). The bottom end of the mounting box (306) is provided with a limiting hole (307) for use with the mounting component (303). The bottom end of the mounting component (303) is provided with a mounting rod (302), and the bottom end of the mounting rod (302) is provided with the trencher (301). The seeding component (2) is mounted on the fixed frame (1) and located behind the adjusting component (3); The rear end of the fixing frame (1) is provided with a push handle (12). The front end of the fixed frame (1) is provided with a drive assembly (7), the output end of the drive assembly (7) is provided with a gear one (8), the two sides of the rotating shaft (6) are respectively provided with a gear two (9) and a gear three (10), the gear one (8) and the gear two (9) are connected by a chain, the seeding assembly (2) is provided with a gear four (11), the gear three (10) and the gear four (11) are connected by a chain; The rear end of the fixing frame (1) is provided with a closed wheel assembly (5).

2. The soybean seedling spacing adjuster according to claim 1, characterized in that: The sowing assembly (2) includes a seed box bracket (201), a sowing shaft (202), a seed box (203), a discharge hopper (204), a sowing wheel (205), a guide hopper (206), and a guide pipe (207). The seed box bracket (201) is mounted on the fixed frame (1), and the seed box (203) is mounted on the seed box bracket (201). The bottom end of the seed box (203) is provided with a discharge hopper (204). The internal part is provided with a seeding wheel (205), the seeding shaft (202) is arranged horizontally, the seeding wheel (205) is fixedly arranged on the seeding shaft (202), and one end of the seeding shaft (202) is provided with the gear four (11); the bottom end of the discharge hopper (204) is provided with a guide hopper (206), the bottom end of the guide hopper (206) is provided with a guide pipe (207), and the bottom end of the guide pipe (207) is located at the position of the furrow opener (301).

3. The soybean seedling spacing adjuster according to claim 2, characterized in that: The feed tube (207) is a retractable flexible tube.

4. The soybean seedling spacing adjuster according to claim 1, characterized in that: The closed wheel assembly (5) includes two symmetrically arranged closed wheel groups (501) and a connecting rod (502). The connecting rod (502) is located at the top of the closed wheel group (501) and is located on the fixed frame (1).

5. The soybean seedling spacing adjuster according to claim 4, characterized in that: The closed wheel assembly (501) includes a first closed wheel (5011), a second closed wheel (5012), a mounting shaft (5013), and a mounting block (5014). The first closed wheel (5011) and the second closed wheel (5012) are symmetrically arranged and inclined between each other. The first closed wheel (5011) and the second closed wheel (5012) are respectively provided with mounting shafts (5013). The end of the mounting shaft (5013) away from the first closed wheel (5011) and the second closed wheel (5012) is provided on the mounting block (5014).

6. The soybean seedling spacing adjuster according to claim 5, characterized in that: The outer surfaces of both closed wheel one (5011) and closed wheel two (5012) are treated with anti-slip coating.