Sweet potato seedling transplanting tool
The sweet potato seedling transplanting tool, designed with elastic connectors and an integrated transmission component, solves the problems of complex structure and insufficient control precision of existing tools, enabling efficient and low-cost sweet potato seedling transplanting operations and improving seedling survival rate and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江西省经济作物研究所
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-05
AI Technical Summary
Existing sweet potato seedling transplanting tools have complex structures and cannot reasonably control planting depth and horizontal planting distance, resulting in low work efficiency and high costs.
The design employs elastic connectors and one-piece molded transmission components, including transmission components driven by torsion springs or compression springs, combined with clamping components, to achieve automatic reset and precise control of planting depth and distance.
The simplified operation process reduced manufacturing costs, improved work efficiency, ensured the survival rate and growth of potato seedlings, and increased yield.
Smart Images
Figure CN224319906U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of agricultural planting equipment technology, specifically to a sweet potato seedling transplanting tool. Background Technology
[0002] Sweet potato is an important food crop, feed crop, and cash crop in my country, and its cultivation is widely distributed throughout the country. Currently, the common method for planting sweet potato seedlings is ridge transplanting. Ridging thickens the topsoil, facilitates drainage and flood prevention, improves aeration, and promotes tuber enlargement. Seedling transplanting is a crucial step in the sweet potato planting process; its efficiency and quality directly affect the survival rate, growth status, and final yield of the seedlings.
[0003] Currently, the method for transplanting sweet potato seedlings on ridges mainly involves shallow horizontal planting, which relies heavily on manual labor and simple tools. The common procedure involves manually or with the aid of a flat tool to create planting holes, placing the seedling in by hand, and then covering it with soil and compacting it by hand or with a flat tool. This intensive transplanting method not only makes it difficult to control the planting depth and horizontal spacing, but also results in very low work efficiency.
[0004] The inventor is aware of a patent document CN216905913U which discloses a sweet potato seedling transplanting tool. By setting a detachable support rod consisting of a fixed column, a threaded groove, a fixed threaded ring, and a threaded rod, and adopting a combined connection method, it achieves the technical effect of facilitating later maintenance and component replacement, and reducing the later maintenance cost of the tool. By setting a clamping spoon consisting of a spoon body, a fixed block, a groove, and a rubber pad, the groove and rubber pad are used to clamp the root and stem of the sweet potato seedling, achieving the technical effect of protecting the root and stem of the sweet potato seedling and avoiding damage during transplanting.
[0005] However, in the process of implementing the technical solution in the embodiments of this application, the inventors of this application found that the structure of the above-mentioned transplanting tool is too complicated. Compared with the existing fixed connection transplanting tool, the tool has too many components, which makes the processing steps more complicated and increases the manufacturing cost to a certain extent. In addition, the frequent use of the detachable support rod will cause thread wear, affecting the connection stability. After long-term use, the support rod may loosen or fall off, thus affecting the clamping accuracy.
[0006] The information disclosed in this background section is intended only to enhance the understanding of the background technology of this disclosure and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention
[0007] In view of at least one of the above technical problems, this disclosure provides a sweet potato seedling transplanting tool, which mainly solves the technical problem that traditional sweet potato seedling transplanting tools have complex structures and cannot reasonably control planting depth and horizontal planting distance.
[0008] According to one aspect of this disclosure, a sweet potato seedling transplanting tool is provided, comprising an elastic connector, two transmission members symmetrically connected to both sides of the elastic connector for symmetrically opening and closing about a central plane under the drive of the elastic connector, and a clamping member fixed at the corresponding end of the transmission members for clamping the sweet potato seedling to be transplanted; the transmission members are S-shaped and include a gripping part, a seedling delivery part parallel to the gripping part and located below the gripping part, and a connecting part correspondingly connecting the gripping part and the seedling delivery part.
[0009] In some embodiments of this disclosure, the elastic connector is a torsion spring; the two torsion arms of the torsion spring are coaxially connected to the gripping portions of the two transmission components respectively.
[0010] In some embodiments of this disclosure, the torsion spring and the transmission component are integrally formed.
[0011] In some embodiments of this disclosure, the elastic connector is a compression spring; the ends of the gripping portions of the two transmission components are hinged to each other, and the two ends of the compression spring are respectively fixedly connected to the gripping portions of the two transmission components.
[0012] In some embodiments of this disclosure, the elastic connector further includes a limiting member for preventing the two transmission members from opening at an excessive angle.
[0013] In some embodiments of this disclosure, the limiting member includes a connecting portion connected to a hinge at the end of the gripping portion and a blocking portion fixed to the side of the connecting portion for limiting the two transmission members.
[0014] In some embodiments of this disclosure, each of the two transmission components is provided with a handle at its gripping portion.
[0015] In some embodiments of this disclosure, the clamping member is an elliptical plate with its major axis arranged along the direction of the seedling delivery section.
[0016] One or more technical solutions provided in the embodiments of this application have at least one of the following technical effects or advantages:
[0017] 1. By using elastic connectors, the device can automatically reset to the open state after clamping, effectively solving the technical problem that the handle cannot automatically reset in the prior art, thereby simplifying the operation steps and achieving the technical effect of improving production efficiency.
[0018] 2. The use of some parts with a one-piece molding design simplifies the number of parts in the device, effectively solves the problem of complex structure in the existing technology, thereby simplifying the equipment structure, saving costs, and reducing the probability of damage.
[0019] 3. By setting up a connecting part and a seedling delivery part, the connecting part separates the seedling delivery part, so that the depth of the seedling delivery part inserted into the soil can be intuitively presented by the length of the seedling delivery part inserted into the soil. The length of the seedling delivery part also limits the minimum distance between seedlings, which effectively solves the problem of not being able to control the planting depth and horizontal planting distance well in the existing technology. This makes the transplanting of potato seedlings more standardized, improves the survival rate of potato seedlings, improves the growth of potato seedlings, and increases the final yield. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a sweet potato seedling transplanting tool in one embodiment of this application.
[0021] Figure 2 This is a schematic diagram of the overall structure of the sweet potato seedling transplanting tool in another embodiment of this application.
[0022] Figure 3 This is a schematic diagram of the limiting component structure of the sweet potato seedling transplanting tool in another embodiment of this application.
[0023] Figure 4 This is a schematic diagram of the overall structure of the sweet potato seedling transplanting tool in another embodiment of this application.
[0024] Figure 5 This is a front view schematic diagram of a sweet potato seedling transplanting tool in another embodiment of this application.
[0025] Figure 6 This is a schematic diagram of the limiting component of the sweet potato seedling transplanting tool in another embodiment of this application.
[0026] In the above figures, 1 is a torsion spring, 2 is a transmission component, 21 is a gripping rod, 22 is a positioning rod, 23 is a seedling feeding rod, 3 is a seedling clamping plate, 4 is a handle, 5 is a rotating shaft, 51 is an upper bearing, 52 is a lower bearing, 53 is a housing, 6 is a compression spring, 7 is a thin torsion spring, 8 is a limiting component, and 9 is a rotating shaft. Detailed Implementation
[0027] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "vertical," "horizontal," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "connection" and "linkage" in this application, unless otherwise specified, include both direct and indirect connections (linkages).
[0028] Unless otherwise specified, the unit modules (components, structures, mechanisms) or sensors involved in the following embodiments are all conventional commercially available products.
[0029] This application provides a sweet potato seedling transplanting tool. By gripping the clamping rod, the torsion spring is compressed and released, thereby achieving the effect of automatic clamping rod reset. In addition, the one-piece molded structure reduces costs and extends the life of the device. Furthermore, by setting a positioning rod and a seedling delivery rod, the transplanting depth and spacing of the seedlings can be better controlled, thereby improving the survival rate and yield of the seedlings.
[0030] To better understand the technical solution of this application, the above technical solution will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0031] Example 1
[0032] This example discloses a tool for transplanting sweet potato seedlings. See [link to documentation]. Figure 1 It includes a torsion spring 1, a transmission component 2, and a seedling clamping plate 3.
[0033] The two torsion arms of the torsion spring 1 are parallel and oriented in the same direction. It is integrally formed with the two transmission components 2, and is made from a single piece of 201 stainless steel with a diameter of 5mm. This structure, using a torsion spring and clamping rods, is durable and provides moderate force. The clamping rods are positioned closer to the thumb, resulting in a simpler structure compared to a scissor-like design with a return spring. This design reduces the effort required for clamping, effectively preventing damage from oxidation or failure of the entire device due to damage to a single component, thus extending the device's lifespan. The transmission components 2 extend outward along the torsion arms, their planes being parallel and symmetrical about the axial center plane of the torsion spring 1. Two seedling clamping plates 3 are welded to the inner sides of the ends of the two clamping rods, their planes also being parallel and symmetrical about the axial center plane of the torsion spring 1. This parallel and symmetrical structure ensures a more stable grip on sweet potato seedlings.
[0034] In this embodiment, the torsion spring 1 has 1.5 coils and an inner diameter of 35mm. Verification with various sizes has shown that this design of the torsion spring 1 makes the device easier to use.
[0035] The transmission component 2 includes a gripping rod 21 coaxially fixed to the end of the torsion arm, a positioning rod 22 perpendicularly fixed to the end of the gripping rod 21, and a seedling feeding rod 23 perpendicularly fixed to the end of the positioning rod 22. By bending the transmission component 2, it has three structures: a 120mm long gripping rod 21 for easy and effortless gripping; a 70mm long positioning rod 22 for easy control of planting depth and to prevent the hand from being blocked by the soil; and a 200mm long seedling feeding rod 23 for easy control of planting depth and horizontal planting distance. These three structures together form transmission component 2. Through an integrated molding structure and carefully designed lengths of each component, they work together to ensure structural simplicity and reliability. The gripping rod 21, in conjunction with the torsion spring 1, allows for effortless clamping or resetting of the clamping rod. The positioning rod 22, acting as a divider, not only prevents workers from pressing their hands too low during planting but also, in conjunction with the seedling delivery rod 23, makes the insertion depth during planting clearer and more intuitive. The seedling delivery rod 23 also allows for better control of the seedling delivery distance, ensuring the spacing between seedlings remains within an appropriate range. This clamping rod design simplifies sweet potato seedling transplanting and significantly reduces labor.
[0036] The gripping rod 21 is equipped with a 3mm diameter annular stainless steel handle 4. The radius of the handle near the positioning rod is larger than the radius near the torsion spring, and its length along the gripping rod is 100mm. The gripping rod 21 is designed to make gripping and clamping operations easier, while the handle 4 is designed to prevent slippage and provide a more comfortable grip, facilitating long-term work and increasing productivity.
[0037] The seedling clamping plate 3 is an elliptical 201 stainless steel component with a major axis of 48mm along the clamping rod, a minor axis of 26mm, and a thickness of 2mm. Tests have shown that this size of clamping plate 3 can effectively clamp sweet potato seedlings without damaging them, and its elliptical structure along the clamping rod makes planting and pushing the soil easier.
[0038] When using the device, first till the field and create ridges, then place the sweet potato seedlings on the ridges where they will be planted. Hold the handle 4 with the seedling feeder 23 facing forward, and place the root of the sweet potato seedling between the two clamping plates 3. Ensure the root of the seedling is centered on the clamping plate for stable holding. Apply moderate pressure to the handle, maintaining a stable grip while the clamping plates 3 firmly hold the seedling, avoiding excessive force that could injure the seedling or insufficient force that could cause it to fall off. Insert the device into the soil at a 30° angle, allowing the seedling feeder 23 to guide the sweet potato seedling diagonally into the soil. Control the depth to 4-5 cm (adjust flexibly according to soil conditions), inserting the feeder 23 halfway. Simultaneously, press down on the gripping rod 21 and push it forward a short distance (determine the relationship between the pushing distance and the length of the feeder 23 based on the desired planting density). Release the handle; the torsion spring 1 will cause the transmission component 2 to open, pulling the tool out of the soil. Repeat the above steps to complete the sweet potato seedling transplanting.
[0039] Example 2
[0040] This example discloses a tool for transplanting sweet potato seedlings. See [link to documentation]. Figure 2 and Figure 3 It includes a compression spring 6, a transmission component 2, a seedling clamping plate 3, a handle 4, and a rotating shaft 5.
[0041] The tail end of transmission component 2 is hinged to rotating shaft 5. Rotating shaft 5 includes upper bearing 51, lower bearing 52, and rotating shaft housing 53. The upper and lower bearings are respectively connected to the left and right rods of transmission component 2. Due to the limited opening range of the side plate of housing 53, the maximum angle between the two transmission components 2 can be limited to 20°. This limiting device can avoid the continuous gripping action of the hand during manual operation, reducing labor intensity. A limiting hole is opened on the inner side of transmission component 2 near rotating shaft 5, and compression spring 6 is fixed in the limiting hole. Since the angle between the two rods of transmission component 2 is no greater than 20°, the spring can be prevented from slipping out of the limiting hole. This combination of limiting device and guiding device can effectively prevent the device from failing due to spring slippage.
[0042] The transmission component 2 is made of 201 stainless steel with a diameter of 5mm. After bending, it is divided into three functional areas: a gripping rod 21 with its tail end fixed to the rotating shaft 5, a positioning rod 22 that is relatively vertical and fixed to the end of the gripping rod 21, and a seedling delivery rod 23 that is relatively vertical and fixed to the end of the positioning rod 22. The gripping rod 21 is 120mm long and is designed for easy and effortless gripping. The positioning rod 22 is 70mm long and is designed to control the planting depth and prevent the hand from being blocked by the soil. The seedling delivery rod 23 is 200mm long and is designed to control the planting depth and the horizontal planting distance. Through a one-piece molded structure and carefully designed lengths of each component, the components work together seamlessly while ensuring structural simplicity and reliability. The gripping rod 21, in conjunction with the pressure spring 6, allows the clamping rod to automatically reset, saving manpower. The positioning rod 22 not only prevents workers from pressing their hands too low during leveling but also, in conjunction with the seedling delivery rod 23, makes the insertion depth during planting clearer and more intuitive. The seedling delivery rod 23 also allows for better control of the seedling delivery distance, ensuring the spacing between seedlings remains within an appropriate range. This clamping rod design simplifies sweet potato seedling transplanting and significantly reduces labor.
[0043] The gripping rod 21 is equipped with a 3mm diameter annular stainless steel handle 4. The radius of the handle near the positioning rod is larger than the radius near the torsion spring, and its length along the gripping rod is 100mm. The gripping rod 21 is designed to make gripping and clamping operations easier, while the handle 4 is designed to prevent slippage and provide a more comfortable grip, facilitating long-term work and increasing productivity.
[0044] The seedling clamping plate 3 is an elliptical 201 stainless steel component with a major axis of 48mm along the clamping rod, a minor axis of 26mm, and a thickness of 2mm. Tests have shown that this size of clamping plate 3 can effectively clamp sweet potato seedlings without damaging them, and its elliptical structure along the clamping rod makes planting and pushing the soil easier.
[0045] When using this product, first till the field and prepare ridges, then place the sweet potato seedlings on the ridges where they will be planted. Hold the handle 4 with the seedling feeder 23 facing forward, and place the roots of the sweet potato seedling between the two seedling clamping plates 3. Ensure that the roots of the sweet potato seedling are in the center of the clamping plates to ensure a stable grip. Squeeze the handle with moderate force, maintaining a stable grip while the seedling clamping plates 3 can hold the sweet potato seedling securely. Avoid injuring the seedling due to excessive force or causing it to fall off due to insufficient force. Insert the device at a 30° angle into the soil, allowing the seedling delivery rod 23 to guide the sweet potato seedling obliquely into the soil. Control the depth to 4-5 cm (adjust flexibly according to soil conditions). Insert the seedling delivery rod halfway in, simultaneously pressing down on the holding rod 21 and pushing it forward a short distance (determine the relationship between the pushing distance and the length of the seedling delivery rod based on the required planting density). Release the handle; under the rebound of the compression spring 6, the transmission component 2 opens, and under the constraint of the outer casing 53, the angle between the two transmission components 2 is 20°. Pull the tool out of the soil. Repeat the above steps to complete the sweet potato seedling transplanting.
[0046] Example 3
[0047] This example discloses a tool for transplanting sweet potato seedlings. See [link to documentation]. Figures 4-6 It includes a thin torsion spring 7, a transmission component 2, a seedling clamping plate 3, a rotating shaft 9, and a rope 8.
[0048] The transmission component 2 is made of 1mm thick 201 stainless steel and is divided into three functional areas: a gripping rod 21 fixed at the tail end to the rotating shaft 9, a positioning rod 22 fixed at a 30° angle to the end of the gripping rod 21, and a seedling delivery rod 23 fixed at a 30° angle to the end of the positioning rod 22. The gripping rod 21 is 120mm long and has transition surfaces formed by bending its body at both the top and bottom. These transition surfaces provide a mounting position for the rotating shaft while allowing for comfortable gripping. The positioning rod 22 is 70mm long, facilitating control of the planting depth and preventing the hand from being obstructed by the soil. The seedling delivery rod 23 is 200mm long, facilitating control of the planting depth and horizontal planting distance. Through a one-piece molded structure and carefully designed lengths of each component, the structure works in concert while ensuring simplicity and reliability. With the cooperation of the gripping rod 21 and the thin torsion spring 7, the clamping rod automatically resets, saving manpower. The positioning rod 22 not only prevents workers from pressing their hands too low during flat planting but also, in conjunction with the seedling delivery rod 23, makes the insertion depth during planting clearer and more intuitive. The seedling delivery rod 23 also allows for better control of the seedling delivery distance, ensuring that the spacing between sweet potato seedlings remains within an appropriate range. This clamping rod design simplifies the transplanting of sweet potato seedlings and significantly reduces labor.
[0049] A limiting member 8, in a figure-7 structure, is welded to the tail end of one transmission component 2. When the device is relaxed, one end of the limiting member 8 is welded to the tail end of one transmission component 2, and the other end abuts against the inner wall of the other transmission component 2. Because the tail ends of the two transmission components 2 are positioned further inward when relaxed compared to when clamped, the limiting member 8 prevents the two transmission components 2 from opening excessively due to the elastic force of the thin torsion spring 7. The angle between the two transmission components 2 is 5° when relaxed. This design allows workers to avoid constantly gripping the holding rod 21, thus making manual operation more effortless.
[0050] The seedling clamping plate 3 is an elliptical 201 stainless steel component with a major axis of 48mm along the clamping rod, a minor axis of 26mm, and a thickness of 2mm. Tests have shown that this size of clamping plate 3 can effectively clamp sweet potato seedlings without damaging them, and its elliptical structure along the clamping rod makes planting and pushing the soil easier.
[0051] When using the device, first till the field and create ridges, then place the sweet potato seedlings on the ridges where they will be planted. Hold the gripping rod 21 with the seedling delivery rod 23 facing forward, and place the roots of the sweet potato seedling between the two clamping plates 3, ensuring the roots are centered on the clamping plates for stable clamping. Apply moderate pressure to the gripping rod 21, maintaining a stable grip while the clamping plates 3 firmly hold the seedling, avoiding excessive force that could injure the seedling or insufficient force that could cause it to fall off. Insert the device into the soil at a 30° angle, allowing the seedling delivery rod 23 to guide the sweet potato seedling diagonally into the soil. Control the depth to 4-5 cm (adjust flexibly according to soil conditions), inserting the seedling delivery rod halfway in, while simultaneously pressing down on the gripping rod 21 and pushing it forward a short distance (determine the relationship between the pushing distance and the length of the seedling delivery rod based on the required planting density). The angle and relatively thin thickness of the device easily propel the seedling forward. Release the handle; under the rebound of the thin torsion spring 7, the transmission component 2 opens, and under the constraint of the limiting component 8, the angle between the two transmission components 2 is 5°, allowing the device to be pulled out of the soil. Repeat the above steps to complete the transplanting of sweet potato seedlings.
[0052] Although some preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.
[0053] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from the spirit and scope of its inventive concept. Therefore, if such modifications and variations to this disclosure fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.
Claims
1. A sweet potato seedling transplanting tool, characterized in that, The device includes an elastic connector, two transmission components symmetrically connected to both sides of the elastic connector for symmetrical opening and closing about a central plane under the drive of the elastic connector, and a clamping component fixed at the corresponding end of the transmission component for clamping the sweet potato seedling to be transplanted; the transmission component is S-shaped and includes a gripping part, a seedling delivery part parallel to the gripping part and located below the gripping part, and a connecting part correspondingly connecting the gripping part and the seedling delivery part.
2. The sweet potato seedling transplanting tool according to claim 1, characterized in that, The elastic connector is a torsion spring; the two torsion arms of the torsion spring are coaxially connected to the gripping portions of the two transmission components respectively.
3. The sweet potato seedling transplanting tool according to claim 2, characterized in that, The torsion spring and the transmission component are integrally formed.
4. The sweet potato seedling transplanting tool according to claim 1, characterized in that, The elastic connector is a compression spring; the ends of the gripping parts of the two transmission components are hinged to each other, and the two ends of the compression spring are respectively fixedly connected to the gripping parts of the two transmission components.
5. The sweet potato seedling transplanting tool according to claim 4, characterized in that, The elastic connector also includes a limiting member to prevent the two transmission components from opening at an excessive angle.
6. The sweet potato seedling transplanting tool according to claim 5, characterized in that, The limiting member includes a connecting part that is hinged to the end of the gripping part and a blocking part fixed to the side of the connecting part for limiting the two transmission members.
7. The sweet potato seedling transplanting tool according to claim 1, characterized in that, Each of the two transmission components is provided with a handle at its gripping part.
8. The sweet potato seedling transplanting tool according to claim 1, characterized in that, The clamping member is an elliptical plate with its major axis along the direction of the seedling delivery section.