Sweet potato planting and transplanting device

Abstract

The utility model relates to the field of agricultural planting tool, and disclose a kind of seedling transplanting equipment for sweet potato planting, including horizontal main rod, it is located at the bottom of seedling transplanting equipment whole, horizontal main rod is horizontal and two ends are respectively fixed with integrated force arm push rod and upper lift lever, force arm push rod and upper lift lever are all inclined, the top end of upper lift lever is fixedly welded with the handle piece breathable seedling head for holding equipment, it is used for breaking membrane and seedling transplanting to be set in the end of upper lift lever;Positioning measurement scale structure, overall is horizontally fixed on the inclined surface of force arm push rod, positioning measurement structure is used for fixing seedling transplanting into soil angle and plant spacing, the seedling transplanting equipment is accurately controlled seedling transplanting angle, plant spacing, depth of three major core parameters of soil penetration by positioning measurement scale structure;Breathable seedling head completes membrane breaking, soil removal, seedling transplanting core action, combined with the seedling lifting effect of upper lift lever optimizes breathability, finally realizes the standardization of sweet potato seedling planting, high efficiency, and lay the foundation for high yield of sweet potato.

Description

Technical Field

[0001] This utility model relates to the field of agricultural planting tools, specifically a seedling transplanting device for sweet potato planting. Background Technology

[0002] As an important food and economic crop, the transplanting stage of sweet potato cultivation has a crucial impact on seedling survival rate, subsequent growth, and final yield. To ensure the growth of sweet potato seedlings, it is necessary to precisely control the planting depth, angle, and spacing. In the case of plastic film mulching cultivation, it is also necessary to break the film to accommodate the seedlings during transplanting. Therefore, specialized transplanting equipment has become an urgent need to improve the efficiency and standardization of sweet potato cultivation.

[0003] However, traditional sweet potato transplanting relies heavily on manual operation and experience. This method suffers from several problems: inconsistent planting depth (too deep can cause root suffocation and slow seedling growth, while too shallow can lead to lodging, water shortage, and wilting); uneven plant spacing (too dense spacing causes competition for nutrients and light, while too sparse spacing wastes land resources, all affecting overall field growth); and arbitrary planting angles (inappropriate angles can cause stem twisting and difficulty in root development). In plastic film mulching, manual planting can also result in irregular film damage and messy soil accumulation around the seedlings, further disrupting the aeration environment. Furthermore, manual operation is labor-intensive and inefficient, failing to meet the production needs of large-scale sweet potato cultivation and severely hindering the standardization and efficiency of sweet potato planting. Therefore, we propose a new sweet potato transplanting device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a sweet potato seedling transplanting device, which solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a sweet potato planting seedling transplanting device, comprising: The horizontal main pole is located at the bottom of the entire seedling transplanting equipment. The horizontal main pole is horizontal and has an integrated lever push rod and an upward lifting rod fixed at both ends. Both the lever push rod and the upward lifting rod are inclined. A handle for holding the equipment is fixedly welded to the top of the upward lifting rod. The breathable seedling head is set at the end of the upturned lifting pole for breaking the film and inserting seedlings; The positioning and measuring scale structure is horizontally fixed on the inclined surface of the lever arm push rod. The positioning and measuring structure is used to fix the planting angle and plant spacing of the seedlings, and there is an upper and lower gap between it and the horizontal main rod to equalize the planting depth.

[0006] Preferably, both the lever arm push rod and the upward lifting rod are inclined upwards, and the upward tilt angle and overall length of the lever arm push rod are greater than the tilt angle and length of the upward lifting rod. The connection between the grip and the lever arm is located in the upper part of the grip, and the upper angle at the connection between the grip and the lever arm is smaller than the lower angle, with the upper angle being less than 90 degrees.

[0007] Preferably, the breathable seedling head includes a seedling fixing needle and a seedling clamping rod. The end of the upward lifting rod is fixedly welded with two symmetrical sets of seedling clamping rods. The two sets of seedling clamping rods are bifurcated. The seedling fixing needle is fixedly welded in the middle of the two sets of seedling clamping rods. The seedling clamping rods are horizontal and parallel to the horizontal main rod. The seedling fixing needle is pointed, and its length is less than the length of the seedling clamping rods on both sides.

[0008] Preferably, the positioning measuring scale structure includes a contact scale component and a base scale component. The contact scale component is fixedly welded to the side of the lever arm push rod, and the contact scale component is formed by two iron rods connected in a closed manner. The end of the contact scale component away from the lever arm push rod is inclined upward. The base sight scale is formed by two iron rods connected in a closed manner, and the base sight scale is fixedly welded to the side of the upward inclined part of the touch film scale. Preferably, the upward tilted portion of the touch-membrane scale is located above the bend connection between the horizontal main rod and the upward lifting rod.

[0009] Preferably, the horizontal main rod, the lever arm push rod, and the touch film scale are located on the same vertical plane. The base view scale is horizontal as a whole and there is a lateral tilt angle between it and the touch film scale. The horizontal distance between the end of the base view scale that faces closer to the lever arm push rod and the touch film scale is the largest.

[0010] Preferably, the length of the horizontal main rod is 17 to 21 cm, the length of the lever arm push rod is 10 to 14 cm, the horizontal length of the contact membrane scale piece is 16 to 20 cm, the length of the upward tilting part is 4 to 8 cm, the length of the base scale piece is 13 to 16 cm, the length of the upward lifting rod is 3 to 7 cm, the length of the grip piece is 9 to 13 cm, and the lengths of the seedling fixing needle and the seedling clamping rod are both greater than 0.8 cm.

[0011] Compared with the prior art, this utility model provides a sweet potato seedling transplanting device, which has the following beneficial effects: I. Precise and controllable planting parameters lay a solid foundation for high yields. By leveraging the synergistic effect of the positioning and measuring scale structure, precise control of core parameters for seedling planting can be achieved. Uniform plant spacing: The base measuring scale uses a fixed length as the unit of measurement to ensure that the planting distance between adjacent sweet potato seedlings is consistent, avoiding the competition for nutrients and light due to excessively dense planting or the waste of land resources due to excessively sparse planting, thus creating conditions for the sweet potato seedlings to receive uniform light and for the root system to expand rationally in the later stages.

[0012] Consistent soil penetration depth: The vertical spacing between the membrane-touching ruler and the horizontal main pole is fixed. When planting seedlings, the membrane-touching ruler is in contact with the mulch film, so that the horizontal main pole drives the seedling head to a stable soil penetration depth, avoiding too deep (root suffocation and slow seedling growth) or too shallow (seedlings are prone to lodging and water shortage), and ensuring a uniform growth rhythm after the seedlings are planted.

[0013] Fixed soil insertion angle: The inclination relationship between the contact membrane ruler and the lever push rod constrains the angle at which the equipment inserts the seedlings, ensuring that the soil insertion angle of the sweet potato seedlings meets the growth requirements (such as facilitating root penetration and stem uprightness), eliminating the randomness of manual seedling insertion and improving the standardization of planting.

[0014] II. The transplanting process is highly efficient and smooth, significantly improving the quality of work. The structural design of the breathable seedling head optimizes the seedling insertion action chain: Smoother film breaking and soil removal: The forked seedling clamp first contacts and pierces the film, while simultaneously removing soil, opening a soil channel for the seedling clamp to insert the seedling, greatly reducing soil resistance when inserting the seedling, making the seedling process smoother and less labor-intensive.

[0015] More stable seedling fixation: The tip of the seedling fixing needle can easily pierce the soil and, together with the seedling clamping rods on both sides, firmly clamps the sweet potato seedling from the angle of fixing the seedling in the middle and limiting the position on both sides, preventing the seedling from falling off or shifting its position during planting, increasing the success rate of planting on the first try, reducing repetitive work, and improving the overall work efficiency and seedling planting accuracy.

[0016] III. Optimizing the seedling microenvironment leads to a dual improvement in survival rate and growth. Significantly enhanced air permeability: The upward-curving structure of the upturned stem lifts the sweet potato seedlings during the planting process, breaking the soil's tight enclosure around the seedlings, increasing air circulation around the seedlings, alleviating the inhibition of root respiration caused by soil hypoxia, and promoting early seedling growth.

[0017] Significantly improved survival rate: Precise planting depth and angle, combined with optimized aeration, avoids problems such as seedling suffocation from deep planting, lodging from shallow planting, and stem twisting caused by improper angles, significantly improving the survival rate of sweet potato seedlings after transplanting and laying a solid foundation for high yields in the later stages.

[0018] IV. Ergonomic design for convenient and effortless operation Comfortable grip and fatigue prevention: The connection between the grip and the lever arm is located in the upper part of the grip, with the upper angle < the lower angle and < 90°. This design conforms to the natural force exertion habits of the human hand, resulting in more even force distribution on the wrist and arm when gripping, effectively reducing muscle fatigue during long-term operation and improving work comfort.

[0019] More efficient force transmission: The upward tilt angle and length of the lever arm push rod are greater than those of the upward lifting rod, which more efficiently converts the hand pushing force into the power for the equipment to insert into the soil. Combined with the labor-saving seedling lifting characteristics of the upward lifting rod, it further reduces the physical consumption of seedling insertion operation and is suitable for continuous operation in large-scale sweet potato planting scenarios. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 .

[0021] In the diagram: 1. Horizontal main pole; 2. Lever arm push rod; 3. Contact membrane ruler; 4. Base sight ruler; 5. Upward lifting rod; 6. Breathable seedling head; 7. Handle; 8. Seedling securing needle; 9. Seedling clamping rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-2 A sweet potato planting transplanting device, comprising: The horizontal main rod 1 is located at the bottom of the entire seedling transplanting equipment. The horizontal main rod 1 is horizontal and has an integrated lever push rod 2 and an upward lifting rod 5 fixed at both ends. Both the lever push rod 2 and the upward lifting rod 5 are inclined. The top of the upward lifting rod 5 is fixedly welded with a handle 7 for holding the equipment. The breathable seedling head 6 is set at the end of the upturned lifting rod 5 for breaking the film and inserting seedlings; The positioning and measuring scale structure is horizontally fixed on the inclined surface of the lever arm push rod 2. The positioning and measuring structure is used to fix the planting angle and plant spacing of the seedlings, and there is an upper and lower gap between it and the horizontal main rod 1 to equalize the planting depth.

[0024] Furthermore, both the lever arm push rod 2 and the upward lifting rod 5 are inclined upwards. The upward tilt angle and overall length of the lever arm push rod 2 are greater than the tilt angle and length of the upward lifting rod 5. The connection between the handle 7 and the lever arm push rod 2 is located in the upper part of the handle 7, and the upper included angle at the connection between the handle 7 and the lever arm push rod 2 is smaller than the lower included angle, with the upper included angle being less than 90 degrees. When the worker holds the handle 7 and applies force, the longer lever arm and the larger tilt angle can more efficiently convert the hand pushing force into the power for the equipment to insert into the soil, and the upward tilt characteristic is conducive to forming a continuous action of forward insertion and seedling lifting. The upward lifting rod 5 has a smaller length and angle, which can ensure that the seedling lifting improves the aeration while avoiding excessive upward tilt that leads to loss of control over the seedling insertion depth.

[0025] The connection between the grip 7 and the lever arm 2 is located in the upper part of the grip, with the upper angle < the lower angle and < 90°. This design ensures that when the worker holds the grip naturally, the direction of force exerted by the wrist and arm is more consistent with the direction of movement of the equipment, reducing muscle fatigue and improving the comfort of long-term operation and the stability of force transmission.

[0026] Furthermore, the breathable seedling head 6 includes a seedling fixing needle 8 and a seedling clamping rod 9. Two symmetrical sets of seedling clamping rods 9 are fixedly welded to the end of the upward-curving rod 5. The two sets of seedling clamping rods 9 are forked. The seedling fixing needle 8 is fixedly welded in the middle of the two sets of seedling clamping rods 9. The seedling clamping rod 9 is horizontal, parallel to the horizontal main rod 1. The seedling fixing needle 8 is pointed, and its length is less than the length of the two seedling clamping rods 9. The horizontal design of the seedling clamping rod 9 parallel to the horizontal main rod 1 ensures that the direction of breaking the film and removing the soil is consistent with the direction of the horizontal main rod during seedling insertion, making the film tear and soil furrow more regular and preventing messy soil accumulation from affecting the seedling. The forked shape and the seedling fixing needle in the middle provide sufficient space on both sides of the seedling fixing needle 8 to accommodate the sweet potato seedling stem. The seedling clamping rods provide auxiliary restraint from both sides, preventing the seedling from swaying left and right during insertion.

[0027] The length of the seedling fixing needle 8 is shorter than that of the seedling clamping rod 9, ensuring that the seedling clamping rod contacts the mulch film first to break through the film, thus opening a channel for the seedling fixing needle 8 to be inserted into the soil and reducing the resistance of the seedling fixing needle 8 to be inserted into the soil; the pointed seedling fixing needle 8 can easily pierce the surface of the soil, improving the smoothness of seedling insertion.

[0028] Furthermore, the positioning and measuring scale structure includes a membrane-contact scale component 3 and a base-view scale component 4. The membrane-contact scale component 3 is fixedly welded to the side of the lever arm push rod 2, and is formed by the closed connection of two upper and lower iron rods. The end of the membrane-contact scale component 3 away from the lever arm push rod 2 is inclined upwards. The base-view scale component 4 is formed by the closed connection of two left and right iron rods, and is fixedly welded to the side of the inclined upward part of the membrane-contact scale component 3. The inclined upward part of the membrane-contact scale component 3 is located above the bend connection between the horizontal main rod 1 and the upward lifting rod 5. The closed connection of the upper and lower iron rods of the membrane-contact scale component 3 enhances its structural strength, avoids deformation caused by repeated membrane contact and seedling insertion, ensures the long-term stability of the spacing height with the horizontal main rod 1, and thus ensures the consistency of the soil penetration depth. One end of the push rod 2 is tilted upwards, making it make point and line contact with the mulch film, reducing excessive scratching and damage to the mulch film. At the same time, the length of the tilted part is used to precisely control the contact area with the film, which helps to stabilize the planting angle.

[0029] The two iron rods on the left and right sides of the base viewing ruler 4 are connected in a closed manner to improve the structural stability when measuring plant spacing and prevent plant spacing errors caused by the swaying of a single rod. Welded to the side of the upturned inclined part of the membrane contact ruler 3, the plant spacing measurement of the base viewing ruler 4 and the angle and depth positioning of the membrane contact ruler 3 form a spatial linkage, and the two work together to make the positioning more accurate. The upturned inclined part of the membrane contact ruler 3 is located above the bend of the horizontal main rod 1 and the upturned lifting rod 5, which makes the spatial position correspondence between the membrane contact ruler 3 and the horizontal main rod 1 more stable. When the lever arm push rod 2 drives the equipment to move, the vertical matching degree between the membrane contact point and the soil entry point is higher, further ensuring the accuracy of the soil entry depth.

[0030] Furthermore, the horizontal main rod 1, the lever arm push rod 2, and the membrane-contact scale 3 are located on the same vertical plane. The base scale 4 is horizontal as a whole and there is a lateral tilt angle between it and the membrane-contact scale 3. The horizontal distance between the end of the base scale 4 facing closer to the lever arm push rod 2 and the membrane-contact scale 3 is the largest. The fact that the horizontal main rod 1, the lever arm push rod 2, and the membrane-contact scale 3 are located on the same vertical plane makes the force transmission and structural movement more planar and consistent when the equipment is inserting seedlings. This reduces motion interference or uneven force caused by spatial misalignment of components, and makes it easier to achieve the actions of keeping the horizontal main rod horizontal, applying force stably with the lever arm push rod 2, and accurately contacting the membrane with the membrane more synchronously.

[0031] The base viewing ruler 4 is horizontal and has a side tilt angle with the contact film ruler 3, and the horizontal distance is greatest near the end of the lever 2. This design makes it easier for workers to capture the relative position of the end of the base viewing ruler 4 and the previous planting point when measuring the plant spacing, avoiding visual confusion. At the same time, the tilt angle makes it easier for the base viewing ruler 4 to avoid the movement range of the contact film ruler in space, preventing collisions between parts during operation.

[0032] Furthermore, the length of the horizontal main rod 1 is 17 to 21 cm, the length of the lever arm push rod 2 is 10 to 14 cm, the horizontal length of the contact film scale component 3 is 16 to 20 cm, the length of the upward tilting part is 4 to 8 cm, the length of the base scale component 4 is 13 to 16 cm, the length of the upward lifting rod 5 is 3 to 7 cm, the length of the handle component 7 is 9 to 13 cm, and the lengths of the seedling fixing needle 8 and the seedling clamping rod 9 are both greater than 0.8 cm. The length range of each component is precisely set based on the agronomical requirements such as the optimal plant spacing, soil depth, and seedling size for sweet potato planting: the length of the horizontal main rod ensures sufficient stability of the horizontal support at the bottom of the equipment; the length of the lever arm push rod 2 is 10 to 14 cm, the horizontal length of the contact film scale component 3 is 16 to 20 cm, the length of the upward tilting part is 4 to 8 cm, the length of the base scale component 4 is 13 to 16 cm, the length of the upward lifting rod 5 is 3 to 7 cm, the length of the handle component 7 is 9 to 13 cm, and the length of the seedling fixing needle 8 and the seedling clamping rod 9 are both greater than 0.8 cm. The length range of each component is precisely set based on the optimal plant spacing, soil depth, and seedling size for sweet potato planting: the length of the horizontal main rod ensures sufficient stability of the horizontal support at the bottom of the equipment; ... 3 is 17 to 21 cm, the length of the horizontal main rod push rod 2 is 10 to The length of the push arm matches the dimensions of the horizontal main pole and the film-contacting scale, optimizing force transmission efficiency and planting angle. The horizontal length and upward-curving length of the film-contacting scale meet the required range of planting depth while avoiding excessive length causing snagging on the film or insufficient length rendering it ineffective. The 13-16 cm length of the base scale aligns with the reasonable spacing between sweet potato plants, ensuring sufficient space for seedling growth. The lengths of the upward-curving lifting pole and handle balance seedling lifting and ventilation with an ergonomic grip. The seedling-fixing needle and clamping rod are longer than 0.8 cm, ensuring effective seedling fixation and film breaking, preventing seedlings from being poorly secured or unable to pierce the film due to excessive length. This coordinated matching of dimensions makes the equipment more compliant with sweet potato planting technical specifications, enhancing its practicality and accuracy.

[0033] Working principle: Sweet potato seedlings are inserted into the seedling fixing pins 8, which are pointed to securely hold the seedlings. Horizontal seedling clamping rods 9 on both sides provide additional restraint, ensuring the seedlings remain stable before insertion and preventing them from falling off or shifting. The worker holds the handle 7; the angle between the handle 7 and the lever arm 2 is less than the lower angle and less than 90°, conforming to ergonomic principles and facilitating hand-operated control of the entire device.

[0034] At this point, using the base-view ruler 4, place it parallel to the mulch film on the ridge. Using the length of the base-view ruler as the measurement unit, ensure that the distance between two adjacent planting points is equal to the length of the base-view ruler, thereby fixing the planting spacing of sweet potato seedlings. When pushing the equipment, the film-touching ruler 3 plays a key role: its upward-sloping part lightly touches the mulch film, and its horizontal bottom adheres to the top of the mulch film. Since the vertical spacing between the film-touching ruler and the horizontal main rod 1 is fixed, and the horizontal main rod, the lever arm push rod 2, and the film-touching ruler are located on the same vertical plane, when the lever arm push rod 2 moves under the pushing force of the handle, the horizontal main rod remains horizontal and moves forward. This allows the angle at which the aerated seedling head is inserted into the soil to be fixed by the inclination relationship between the film-touching ruler and the lever arm push rod. At the same time, the soil depth of the sweet potato seedling is consistent due to the fixed spacing between the film-touching ruler and the horizontal main rod, avoiding planting too deep or too shallow, which would affect growth.

[0035] As the handle is pushed, the upward lifting rod 5 causes the seedling clamping rod 9 at the end to first contact and pierce the mulch film. Then the seedling clamping rod performs a soil-pulling action to create space for the sweet potato seedling to enter the soil. At the same time, the seedling fixing needle 8 moves synchronously with the seedling clamping rod to insert the grafted sweet potato seedling into the soil. The seedling clamping rod 9 first breaks the film and pulls the soil, which can reduce the resistance of the seedling fixing needle 8 in inserting the seedling and ensure the precise insertion position of the seedling.

[0036] The upward-curving structure of the lifting lever 5 lifts the sweet potato seedlings upwards during planting, resulting in a more reasonable distribution of seedlings within the mulch film, increasing aeration around the seedlings and reducing oxygen deficiency caused by soil compaction. The ergonomic design of the handle 7 enhances ease of operation; the cooperation between the lever arm 2 and the horizontal main rod 1 ensures the stability of the equipment's movement; the positioning and measuring scale structure precisely controls the three core parameters of planting angle, plant spacing, and planting depth; the aerated planting head completes the core actions of breaking the film, removing soil, and securing the seedling, and combined with the lifting effect of the lifting lever 5, optimizes aeration, ultimately achieving standardized and efficient sweet potato seedling planting, laying the foundation for high sweet potato yields.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sweet potato seedling transplanting device, characterized in that, include: The horizontal main rod (1) is located at the bottom of the entire seedling transplanting equipment. The horizontal main rod (1) is horizontal and has an integrated lever push rod (2) and an upward lifting rod (5) fixed at both ends. The lever push rod (2) and the upward lifting rod (5) are both inclined. The top of the upward lifting rod (5) is fixedly welded with a handle (7) for holding the equipment. The breathable seedling head (6) is set at the end of the upturned lifting rod (5) for breaking the film and inserting seedlings; The positioning and measuring scale structure is horizontally fixed on the inclined surface of the lever arm push rod (2). The positioning and measuring scale structure is used to fix the planting angle and plant spacing of the seedlings, and there is an upper and lower gap between it and the horizontal main rod (1) to equalize the planting depth.

2. The sweet potato planting transplanting device according to claim 1, characterized in that, Both the lever arm push rod (2) and the upward lifting rod (5) are inclined upwards. The upward tilt angle and overall length of the lever arm push rod (2) are greater than the tilt angle and length of the upward lifting rod (5). The connection between the grip (7) and the lever (2) is located in the upper half of the grip (7), and the upper angle between the grip (7) and the lever (2) is smaller than the lower angle, and the upper angle is less than 90 degrees.

3. The sweet potato planting transplanting equipment according to claim 2, characterized in that, The breathable seedling head (6) includes a seedling fixing needle (8) and a seedling clamping rod (9). The end of the upturned lifting rod (5) is fixedly welded with two symmetrical sets of seedling clamping rods (9). The two sets of seedling clamping rods (9) are bifurcated. The seedling fixing needle (8) is fixedly welded in the middle of the two sets of seedling clamping rods (9). The seedling clamping rod (9) is horizontal and parallel to the horizontal main rod (1). The seedling fixing needle (8) is pointed, and the length of the seedling fixing needle (8) is less than the length of the seedling clamping rods (9) on both sides.

4. The sweet potato planting transplanting device according to claim 1, characterized in that, The positioning measurement scale structure includes a contact scale component (3) and a base scale component (4). The contact scale component (3) is fixedly welded to the side of the lever arm push rod (2), and the contact scale component (3) is formed by the closed connection of two iron rods, and the end of the contact scale component (3) away from the lever arm push rod (2) is tilted upwards. The base sight scale (4) is formed by the closed connection of two iron rods on the left and right sides. The base sight scale (4) is fixedly welded to the side of the upward tilted part of the touch film scale (3). The upward tilted part of the touch-membrane scale component (3) is located above the bend connection between the horizontal main rod (1) and the upward lifting rod (5).

5. The sweet potato planting transplanting device according to claim 4, characterized in that, The horizontal main rod (1), the lever arm push rod (2) and the touch film scale (3) are located on the same vertical plane. The base view scale (4) is horizontal as a whole and there is a side tilt angle between it and the touch film scale (3). The horizontal distance between the end of the base view scale (4) facing closer to the lever arm push rod (2) and the touch film scale (3) is the largest.

6. The sweet potato planting transplanting device according to claim 3, characterized in that, The length of the horizontal main rod (1) is 17 to 21 centimeters, the length of the lever push rod (2) is 10 to 14 centimeters, the length of the upward lifting rod (5) is 3 to 7 centimeters, the length of the grip piece (7) is 9 to 13 centimeters, and the lengths of the seedling fixing needle (8) and the seedling clamping rod (9) are both greater than 0.8 centimeters.

7. The sweet potato planting transplanting device according to claim 4, characterized in that, The horizontal length of the touch film scale (3) is sixteen to twenty centimeters, the length of the upward inclined part is four to eight centimeters, and the length of the base sight scale (4) is thirteen to sixteen centimeters.

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