A spacing positioning device for sweet potato planting
By using a plant spacing positioning device in sweet potato planting, combined with a tractor and a ridging machine, accurate positioning of sweet potato planting holes was achieved, solving the problem of low efficiency in traditional methods, improving planting efficiency and uniformity, and adapting to large-scale production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KAIFENG ACAD OF AGRI & FORESTRY SCI
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-31
AI Technical Summary
Inaccurate control of planting density during sweet potato planting leads to uneven distribution of seedlings. Traditional hand-push type markers for fixing plant spacing are inefficient and cannot meet the needs of large-scale production.
Design a sweet potato planting spacing positioning device that uses a tractor as a power source and combines it with a ridging machine to position the plant spacing. The device uses a turntable and positioning cone to position the planting holes on the ridge surface, achieving accuracy and flexibility in planting two rows of sweet potatoes and adapting to different planting patterns.
It improves sweet potato planting efficiency, reduces labor and time costs, ensures the uniformity and consistency of planting holes, and adapts to the needs of large-scale production.
Smart Images

Figure CN224571820U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sweet potato cultivation, specifically to a sweet potato planting spacing positioning device. Background Technology
[0002] Sweet potatoes, as a high-yield, stable-yield, and high-value crop that serves as both a food and cash crop, have a wider range of uses compared to other crops. They provide ample raw materials for the development of starch, food, and fermentation industries. Furthermore, sweet potatoes contain various active ingredients and possess certain medicinal value. In recent years, the planting area of sweet potatoes has continued to expand, and the planting benefits have significantly improved, making it an important and efficient crop in the agricultural sector.
[0003] However, current sweet potato production still suffers from extensive planting practices, primarily manifested in inaccurate planting density control. This leads to a mismatch between the amount of seedlings purchased and actual demand, resulting in uneven seedling distribution after planting (some areas are too dense, while others are too sparse). This severely impacts the yield and marketability of sweet potatoes, reducing planting efficiency. In sweet potato research, to determine the optimal planting density for different varieties under varying planting times and ecological conditions, multi-year, multi-location density trials are necessary. Traditional methods use hand-push markers to fix plant spacing. For example, patent document CN209002318 U discloses a wheeled double-row perforating positioning device. When used, it is placed on two rows of covered ridges and pushed, creating equally spaced holes with positioning protrusions. While this method ensures accuracy, it is inefficient and only suitable for small-scale trials, failing to meet the needs of large-scale production. This results in reduced planting efficiency and increased costs. Therefore, developing a plant spacing positioning device for sweet potato planting is crucial for improving the uniformity and consistency of sweet potato planting, increasing marketability, and enhancing planting efficiency. Summary of the Invention
[0004] To address the shortcomings of traditional sweet potato planting methods, which rely on hand-push markers to fix plant spacing, resulting in low efficiency despite ensuring accuracy, and are only suitable for small-scale trials, this invention proposes a sweet potato planting spacing positioning device. Using a tractor as the primary power source, the device positions planting holes on the ridge surface after a ridge-raising machine performs the ridge-raising operation. This allows for precise spacing positioning of two adjacent rows of sweet potatoes, significantly improving planting efficiency. It is particularly suitable for large-scale sweet potato production, reducing labor and time costs, and enhancing planting benefits. Furthermore, the planting holes positioned on the ridge surface can be arranged in parallel or staggered configurations, meeting the diverse needs of sweet potato planting under different planting models.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A sweet potato planting spacing positioning device includes a support connected to a ridging machine. A rotating shaft is rotatably mounted at the bottom of the support. Positioning component one and positioning component two are respectively mounted at both ends of the rotating shaft, and a drive sprocket is located in the middle of the shaft. Positioning component one includes a turntable and several positioning cones evenly distributed on the outer circumference of the turntable. Positioning component two includes a turntable and several positioning cones evenly distributed on the outer circumference of the turntable. An adjustment component is also mounted on the rotating shaft. The adjustment component includes a fan-shaped plate and a support plate. Inserts are slidably mounted on the support plate, and several slots are formed on the fan-shaped plate to mate with the inserts. Initially, positioning cones one and two on turntable one are aligned, achieving parallel planting. By adjusting the component, the installation angle of turntable two can be changed, causing the planting holes positioned by positioning cones one and two on the ridge surface to be staggered, allowing the device to adapt to different planting needs.
[0006] Furthermore, the support plate has a sliding groove, within which an insert plate slides. The insert plate has an elongated hole through which a bolt passes. A threaded hole is located at the bottom of the sliding groove, through which the bolt passes and connects. When adjusting the installation angle of turntable two, first loosen the bolt to allow the insert plate to slide upwards within the groove. Then, according to the desired installation angle, rotate turntable two to align the insert block on the insert plate with the corresponding slot on the sector plate. Once the insert block is aligned with the slot, tighten the bolt to fix the insert plate to the support plate. At this point, the insert block is embedded in the slot. Due to the self-locking effect of the V-groove and V-block, turntable two is locked at the new installation angle, thus achieving either parallel or staggered arrangement of the positioned planting holes.
[0007] Furthermore, the slot is a V-shaped groove, and the insert is a V-shaped block, which is fixedly connected to the bottom of the insert plate. After the insert is inserted into the new slot, the self-locking action of the V-shaped groove and the V-shaped block ensures that the turntable two is locked on the rotating shaft.
[0008] Furthermore, both the turntable and the sector plate are fixedly connected to the rotating shaft.
[0009] Furthermore, the turntable two has a through hole for the rotating shaft to pass through, and the support plate is fixedly connected to the turntable two. When it is necessary to adjust the installation angle of the turntable two, since the turntable two is assembled with the rotating shaft through the through hole, after loosening the bolts so that the insert plate can slide upward in the slide groove, the turntable two can rotate to a certain extent along the axial direction of the rotating shaft to change its installation angle.
[0010] Furthermore, the length of the outer arc segment of the turntable between two adjacent positioning cones is equal to the length of the outer arc segment of the turntable between two adjacent positioning cones. This ensures the accuracy and consistency of the spacing positioning for the two adjacent rows of sweet potatoes, resulting in uniform planting spacing between the two rows of sweet potatoes.
[0011] Furthermore, the bracket is a U-shaped frame, comprising a horizontal side and two vertical sides. Two supports are provided on the horizontal side of the bracket, and the rotating shaft is mounted between the two supports via bearings. The supports, in cooperation with the bearings, facilitate the rotation of the rotating shaft.
[0012] Furthermore, the two vertical sides of the bracket are connected to the frame of the ridging machine. This ensures that the device can be securely fixed to the ridging machine and move with it.
[0013] The beneficial effects of this utility model through the above technical solution are as follows: The sweet potato planting spacing positioning device provided by this utility model is fixed on a sweet potato planting ridging machine. Powered by a tractor, the device can simultaneously perform plant spacing positioning while the ridging machine completes the ridging operation. Positioning cones one and two are evenly distributed on turntable one and turntable two, respectively. Through their rotation, the positioning cones can accurately position planting holes on the ridge surface. Furthermore, it can complete the plant spacing positioning work for two adjacent rows of sweet potatoes, greatly improving the efficiency of sweet potato planting and significantly saving time and labor costs compared to traditional manual positioning methods.
[0014] In this invention, the positioning cone one on turntable one and the positioning cone two on turntable two are aligned in the initial state to achieve parallel planting, while the design of the adjustment component provides flexibility to the device. Specifically, an insert plate is slidably mounted on the support plate, with an elongated hole through which a bolt passes. A threaded hole is provided at the bottom of the sliding groove, allowing the insert plate to slide upward within the groove by loosening the bolt. Simultaneously, several slots that mate with the insert blocks are provided on the fan-shaped plate. When it is necessary to adjust the installation angle of turntable two, simply loosen the bolts, rotate turntable two to align the insert block with the corresponding slot on the sector plate, and then tighten the bolts. Utilizing the self-locking effect of the V-groove and V-block, turntable two can be locked at the new installation angle, while turntable one remains in its original position. In this way, the planting holes positioned on the ridge by positioning cone one and positioning cone two are no longer arranged in parallel, but rather in a staggered state. Therefore, this design allows the planting holes positioned on the ridge by positioning cone one and positioning cone two to present either the aforementioned parallel or staggered arrangement, which can meet the diverse needs of sweet potato planting under different planting modes. Attached Figure Description
[0015] Figure 1 This utility model relates to a three-dimensional sweet potato planting spacing positioning device. Figure 1 ; Figure 2 This utility model relates to a three-dimensional sweet potato planting spacing positioning device. Figure 2 ; Figure 3This is an exploded view of the adjusting components in a sweet potato planting spacing positioning device of this utility model. Figure 4 This is a schematic diagram of the support plate and the insert plate in a sweet potato planting spacing positioning device of this utility model; Figure 5 This is a schematic diagram illustrating the application of the sweet potato planting spacing positioning device of this utility model.
[0016] The numbers in the attached diagram are: 1. Bracket; 2. Shaft; 3. Drive sprocket; 4. Turntable 1; 5. Positioning cone 1; 6. Turntable 2; 7. Positioning cone 2; 8. Sector plate; 9. Support plate; 10. Insert block; 11. Slot; 12. Slide groove; 13. Insert plate; 14. Long hole; 15. Bolt; 16. Threaded hole; 17. Through hole; 18. Support; 19. Drive sprocket; 20. Chain. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-5 As shown, this embodiment provides a sweet potato planting spacing positioning device, including a support 1 connected to a ridging machine. A rotating shaft 2 is rotatably mounted at the bottom of the support 1. Positioning component one and positioning component two are respectively mounted at both ends of the rotating shaft 2, and a power sprocket 3 is mounted in the middle of the rotating shaft 2. Positioning component one includes a turntable 4 and several positioning cones 5 evenly distributed on the outer circumference of the turntable 4. Positioning component two includes a turntable 6 and several positioning cones 7 evenly distributed on the outer circumference of the turntable 6. An adjustment component is also mounted on the rotating shaft 2. The adjustment component includes a fan-shaped plate 8 and a support plate 9. Insertion blocks 10 are slidably mounted on the support plate 9, and several slots 11 that cooperate with the insertion blocks 10 are opened on the fan-shaped plate 8. The function of positioning cones 5 and 7 is to position planting holes on the ridge surface, thereby achieving sweet potato planting spacing positioning. The installation angle of turntable 6 can be changed by adjusting the components, so that the planting holes positioned on the ridge by positioning cone 5 and positioning cone 7 can be arranged in parallel or staggered positions, allowing the device to adapt to different planting needs.
[0018] The sweet potato planting spacing positioning device provided by this utility model is fixed on a sweet potato planting ridging machine. The tractor provides power, the ridging machine completes the ridging operation, and this device positions the plant spacing. Positioning cones 5 and 7 are evenly distributed on turntable 4 and turntable 6, respectively. Their rotation allows the positioning cones to position planting holes on the ridge surface, thereby realizing the plant spacing positioning of two adjacent rows of sweet potatoes in one operation. In addition, a block 10 is slidably arranged on the support plate 9 in the adjustment component, and several slots 11 that cooperate with the block 10 are opened on the fan-shaped plate 8. This structural design provides flexibility and convenience for subsequent adjustment of the relative positions of positioning cones 5 and 7, enabling the device to adapt to different planting needs.
[0019] Please refer to this again. Figure 3 and Figure 4 The support plate 9 has a sliding groove 12, within which an insert plate 13 slides. The insert plate 13 has an elongated hole 14 through which a bolt 15 passes. A threaded hole 16 is located at the bottom of the sliding groove 12, through which the bolt 15 passes and connects. When adjusting the installation angle of the turntable 6, first loosen the bolt 15 to allow the insert plate 13 to slide upwards within the sliding groove 12. Then, according to the desired installation angle, rotate the turntable 6 so that the insert block 10 on the insert plate 13 aligns with the corresponding slot 11 on the sector plate 8. Once the insert block 10 is aligned with the slot 11, tighten the bolt 15 to fix the insert plate 13 to the support plate 9. At this point, the insert block 10 is embedded in the slot 11. Due to the self-locking effect of the V-groove and V-block, the turntable 6 is locked at the new installation angle, thus achieving either parallel or staggered arrangement of the positioned planting holes.
[0020] In this embodiment, the slot 11 is a V-shaped groove, and the insert 10 is a V-shaped block. The insert 10 is fixedly connected to the bottom of the insert plate 13. After the insert 10 is disengaged from the original slot 11, the turntable 2 6 can rotate along the axis of the rotating shaft 2 to adjust the installation angle. After the insert 10 is inserted into the new slot 11, the self-locking effect of the V-shaped groove and the V-shaped block ensures that the turntable 2 6 is locked on the rotating shaft 2.
[0021] In addition, both the turntable 4 and the sector plate 8 are fixedly connected to the rotating shaft 2, ensuring their synchronous rotation and stable connection.
[0022] In this example, the turntable 6 has a through hole 17 for the rotating shaft 2 to pass through, and the support plate 9 is fixedly connected to the turntable 6. When it is necessary to adjust the installation angle of the turntable 6, since the turntable 6 is assembled with the rotating shaft 2 through the through hole 17, after loosening the bolt 15 to allow the insert plate 13 to slide upward in the slide groove 12, the turntable 6 can rotate to a certain extent along the axial direction of the rotating shaft 2 to change its installation angle. It should be noted that, in order to prevent the turntable from moving axially on the rotating shaft 2, a nut is also provided on the rotating shaft 2. The nut is threadedly connected to the rotating shaft 2 and is located on the outside of the turntable 6. The nut resists the turntable 6 with the axial force generated by the threaded engagement with the rotating shaft 2, thereby ensuring the stability of the position of the turntable 6 during operation. Furthermore, the installation position of the nut will not interfere with the normal operation of the adjustment component.
[0023] In this embodiment, the length of the outer arc segment of the turntable 4 between two adjacent positioning cones 5 is equal to the length of the outer arc segment of the turntable 6 between two adjacent positioning cones 7. This design ensures the accuracy and consistency of the spacing positioning for planting two rows of adjacent sweet potatoes, resulting in uniform planting spacing between the two rows of sweet potatoes.
[0024] In this embodiment, the bracket 1 is a U-shaped frame, which includes a horizontal side and two vertical sides. Two supports 18 are provided on the horizontal side of the bracket 1, and the rotating shaft 2 is mounted between the two supports 18 via a bearing. The supports 18 are mounted on the horizontal side of the bracket 1, providing a stable support platform for the rotating shaft 2, and the supports 18, in cooperation with the bearing, facilitate the rotation of the rotating shaft 2.
[0025] The two vertical sides of the bracket 1 are connected to the frame of the ridging machine. This connection method ensures that the device can be securely fixed to the ridging machine and move together with the ridging machine.
[0026] It is worth mentioning that the positioning cone 5 and positioning cone 7 in this invention have the same structure, and their shapes are any one of conical, trapezoidal cylinder, or hemispherical. This diversity improves the adaptability and versatility of the device.
[0027] The working principle of this utility model is as follows: When in use, this device is fixed on the sweet potato planting and ridging machine. Please refer to the instructions again. Figure 5The ridging machine has a drive shaft mounted on its frame, and a drive sprocket 19 is installed on the drive shaft. This connection method allows the tractor, ridging machine, and this device to form an organic whole, achieving coordinated work during sweet potato planting: the tractor provides power, the ridging machine completes the ridging operation, and this device positions the plant spacing. Initially, the positioning cone 5 on turntable 4 and the positioning cone 7 on turntable 6 are aligned to achieve parallel planting. Specifically, during operation, the tractor establishes a connection with the drive shaft of the ridging machine through its own power output system. The tractor can transmit power to the drive shaft of the ridging machine through a mechanical transmission method such as belt drive or gear drive, causing the drive shaft to rotate. Subsequently, the drive shaft drives the chain 20 and the power sprocket 3 through the drive sprocket 19, transmitting power to the rotating shaft 2. The rotating shaft 2 then drives the turntable 4 and the turntable 6 to rotate, enabling the normal operation of the device. After the sweet potatoes are ridged, the positioning cones 5 and 7 position the planting holes on the ridge surface, achieving the positioning of the sweet potato planting spacing, which facilitates the precise planting of seedlings later. Furthermore, it can complete the positioning of the planting spacing of two adjacent rows of sweet potatoes, greatly improving the efficiency of sweet potato planting. Compared with the traditional manual positioning method, it significantly saves time and labor costs.
[0028] When adjusting the installation angle of turntable 2 6 to achieve staggered planting, first loosen bolt 15 to allow insert plate 13 to slide upward within slide groove 12; then, according to the required installation angle, rotate turntable 2 6 so that insert block 10 on insert plate 13 aligns with corresponding slot 11 on sector plate 8; after insert block 10 aligns with slot 11, tighten bolt 15 to fix insert plate 13 to support plate 9. At this time, insert block 10 is embedded in slot 11, and due to the self-locking effect of V-groove and V-block, turntable 2 6 is locked at the new installation angle; after changing the installation angle of turntable 2 6 by adjusting the components, turntable 1 4 remains in its original position, so the planting holes positioned on the ridge by positioning cone 1 5 and positioning cone 2 7 are no longer parallel, but staggered. Furthermore, throughout the entire staggered planting process, the power sprocket 3 in the middle of shaft 2 can still receive power normally, ensuring the rotation of shaft 2. Although the installation angle of turntable 26 has changed, due to the continuous rotation of the rotating shaft 2, positioning cone 15 and positioning cone 27 can still continuously position planting holes on the ridge, only the relative positions of these planting holes have become staggered.
[0029] In summary, this device can strictly control planting density in sweet potato research, providing accurate data support for density experiments and helping to promote the advancement of sweet potato breeding and cultivation techniques. By improving planting efficiency and uniformity, this device helps reduce seedling waste and replanting needs, thereby reducing production costs, improving the overall economic benefits of sweet potato cultivation, providing technical support for large-scale sweet potato cultivation, and contributing to the stability of raw material supply for regional industries such as the hot and sour rice noodle industry in Kaifeng City.
[0030] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.
Claims
1. A spacing positioning device for sweet potato cutting, comprising a support (1) connected with a ridger, characterized in that, The bottom of the bracket (1) is rotatably provided with a rotating shaft (2). The two ends of the rotating shaft (2) are respectively provided with a positioning component one and a positioning component two. The middle of the rotating shaft (2) is provided with a power sprocket (3). The positioning component one includes a turntable one (4) and a number of positioning cones one (5) evenly distributed on the outer circumference of the turntable one (4). The positioning component two includes a turntable two (6) and a number of positioning cones two (7) evenly distributed on the outer circumference of the turntable two (6). The rotating shaft (2) is also provided with an adjustment component. The adjustment component includes a fan-shaped plate (8) and a support plate (9). A plug (10) is slidably provided on the support plate (9). A number of slots (11) that cooperate with the plug (10) are opened on the fan-shaped plate (8).
2. The spacing and positioning device for sweet potato cutting according to claim 1, wherein The support plate (9) has a sliding groove (12), and a plate (13) is slidably arranged in the sliding groove (12). The plate (13) has an elongated hole (14), and a bolt (15) passes through the elongated hole (14). A threaded hole (16) is provided at the bottom of the sliding groove (12), and the bolt (15) passes through the elongated hole (14) and connects to the threaded hole (16).
3. The spacing and positioning device for sweet potato cutting according to claim 2, wherein The slot (11) is a V-shaped groove, and the plug (10) is a V-shaped block. The plug (10) is fixedly connected to the bottom of the plug plate (13).
4. The spacing and positioning device for sweet potato cutting according to claim 1, wherein Both the turntable (4) and the sector plate (8) are fixedly connected to the rotating shaft (2).
5. The spacing and positioning device for sweet potato cutting according to claim 1, wherein The turntable 2 (6) has a through hole (17) for the rotating shaft (2) to pass through, and the support plate (9) is fixedly connected to the turntable 2 (6).
6. The spacing and positioning device for sweet potato cutting according to claim 1, wherein The length of the outer arc segment of the turntable 1 (4) between two adjacent positioning cones 1 (5) is equal to the length of the outer arc segment of the turntable 2 (6) between two adjacent positioning cones 2 (7).
7. The sweet potato planting spacing positioning device according to claim 1, characterized in that, The bracket (1) is a U-shaped bracket, which includes a horizontal side and two vertical sides. Two supports (18) are provided on the horizontal side of the bracket (1), and the rotating shaft (2) is installed between the two supports (18) through a bearing.
8. The spacing and positioning device for sweet potato cutting according to claim 7, wherein The two vertical sides of the support (1) are connected to the frame of the ridging machine.