A line marking device for agricultural field work

Abstract

The utility model relates to a kind of line marking device for farmland operation, including n-shaped plate, movable plate and walking structure, the both ends of n-shaped plate are fixedly connected with fixed plate, the central part of n-shaped plate upper surface is equidistantly opened and is provided with first through-hole, the central part of fixed plate upper surface is opened and is provided with second through-hole, the position of movable plate upper surface corresponding first through-hole is detachably installed with line marker, the position of movable plate lower surface corresponding second through-hole is fixedly connected with adjusting screw, adjusting screw is slidably connected in the inside of second through-hole along vertical direction, adjusting screw surface is provided with locking mechanism, walking structure includes two connecting arms, two connecting arms are fixedly connected respectively in the position of n-shaped plate side and close to both ends, the middle part of two connecting arms is fixedly connected with wheel;The utility model under non-working condition, line marking nail can be received in the inside of n-shaped plate and be stored, n-shaped plate can wrap line marking nail, prevent line marking nail from suffering collision in storage and transportation process.

Description

Technical Field

[0001] This utility model relates to the field of agricultural implements technology, specifically to a marking device for farmland operations. Background Technology

[0002] Field marking devices are agricultural tools used to make regular markings in the field. They mainly use mechanical structures to draw straight lines or furrows at specific intervals on the soil surface, providing a baseline for subsequent operations such as sowing and transplanting. These devices can significantly improve the standardization and efficiency of agricultural production, especially in crop planting where precise control of row spacing is required. Traditional marking tools mostly rely on manual operation, while modern mechanized devices achieve automated operation by combining with traction equipment, reducing labor intensity and improving marking accuracy.

[0003] The existing marking devices mostly use marking nails as the structure for marking lines. These marking nails are mostly integrally molded and set on the same plate, and they are all exposed. During storage or transfer, they are easily bent by impact or pressure, which can easily damage them and affect the neatness of the marking. When one of the nails is bent or damaged, the entire marking device needs to be disassembled for repair and maintenance, which is very inconvenient. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a marking device for farmland operations, which solves the problems of exposed marking nails being easily damaged and inconvenient to maintain in existing technologies.

[0005] This utility model discloses a line marking device for farmland operations, comprising an n-shaped plate, a movable plate, and a walking structure. Both ends of the n-shaped plate are fixedly connected to fixed plates. A first through hole is equidistantly spaced along the center of the upper surface of the n-shaped plate. A second through hole is detachably installed at the center of the upper surface of the fixed plate corresponding to the first through hole. An adjusting screw is fixedly connected to the lower surface of the movable plate at the position corresponding to the second through hole. The adjusting screw slides vertically within the second through hole, and a locking mechanism is provided on its surface. The walking structure includes two connecting arms, each fixedly connected to one side of the n-shaped plate near both ends. Wheels are fixedly connected to the middle of each connecting arm.

[0006] As a further improvement of this utility model, the marking device includes a connecting block and a marking pin, the marking pin being fixedly connected to the center of the lower surface of the connecting block, and a handle being integrally formed at the center of the upper surface of the connecting block.

[0007] As a further improvement of this utility model, an internal thread groove is provided at the center of the upper surface of the movable plate and at the position corresponding to the first through hole. A threaded protrusion is provided on the outer side of the connecting block at the position corresponding to the internal thread groove. The connecting block is threadedly connected to the internal thread groove. A third through hole is provided at the position corresponding to the center of the internal thread groove on the lower surface of the movable plate. The end of the scribing nail passes through the third through hole and the first through hole.

[0008] As a further improvement of this utility model, the locking mechanism includes a first locking nut and a second locking nut, both of which are threadedly connected to the surface of the adjusting screw. The first locking nut is located above the fixed plate, and the second locking nut is located below the fixed plate.

[0009] As a further improvement of this utility model, a fixing rod is fixedly connected between the two connecting arms and at one end away from the n-shaped plate. A connector is detachably installed in the middle of the fixing rod for connecting vehicles and equipment traveling in the field. As a further improvement of this utility model, the connector includes an adjusting rod, one end of which is fixedly connected to a trailer hook, an adjusting hole is provided in the center of the fixed rod, and the other end of the adjusting rod is inserted into the adjusting hole in a vertical direction.

[0010] As a further improvement of this utility model, a threaded hole is provided in the center of the side of the fixing rod away from the n-shaped plate. The threaded hole is connected to the adjustment hole. A quick-release screw is threaded inside the threaded hole. Positioning holes are provided at equal intervals along the vertical direction on the side of the fixing rod. The end of the quick-release screw passes through the positioning hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, through the setting of an n-shaped plate and the sliding connection between the movable plate and the n-shaped plate, allows the marking nails on the n-shaped plate to protrude from the lower end of the n-shaped plate only when working. When not in use, the marking nails can be retracted into the interior of the n-shaped plate for storage. The n-shaped plate can wrap the marking nails to prevent them from being damaged by collisions during storage and transportation.

[0012] 2. This utility model, by slidingly engaging the adjusting screw on the movable plate with the second through hole of the fixed plate, and with the addition of the first and second locking nuts, can control the extension and retraction of the marking nail, limit the position of the marking nail during operation and storage, prevent the marking nail from moving easily, ensure its stability during operation and storage, and is simple to operate and easy to implement.

[0013] 3. The scribing device of this utility model is fixed to the movable plate by a threaded connection. When a single scribing nail is damaged, the connecting block can be removed from the internal thread groove and replaced simply by rotating the handle. There is no need to disassemble the entire device, making maintenance and repair very convenient. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the front cross-sectional structure of the n-shaped plate when the marking tool of this utility model is stored. Figure 3 This is a schematic cross-sectional view of the side of the n-shaped plate when the marking device of this utility model is working; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a three-dimensional structural diagram of the connector of this utility model; Figure 6 This is a front sectional view of the fixing rod of this utility model.

[0015] In the diagram: 1. N-shaped plate; 2. First through hole; 3. Fixed plate; 4. Second through hole; 5. Movable plate; 6. Adjusting screw; 7. First locking nut; 8. Second locking nut; 9. Connecting block; 10. Marking pin; 11. Handle; 12. Connecting arm; 13. Wheel; 14. Fixed rod; 15. Adjusting hole; 16. Threaded hole; 17. Quick-release screw; 18. Adjusting rod; 19. Trailer hook; 20. Positioning hole. Detailed Implementation

[0016] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0017] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0018] In the description of this technology, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0019] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0020] Please see Figures 1-6 This utility model discloses a field marking device, comprising an n-shaped plate 1, a movable plate 5, and a walking structure. Fixed plates 3 are fixedly connected to both ends of the n-shaped plate 1. A first through hole 2 is equidistantly formed at the center of the upper surface of the n-shaped plate 1. A second through hole 4 is formed at the center of the upper surface of the fixed plate 3. A marking device is detachably installed on the upper surface of the movable plate 5 at the position corresponding to the first through hole 2. An adjusting screw 6 is fixedly connected to the lower surface of the movable plate 5 at the position corresponding to the second through hole 4. The adjusting screw 6 slides vertically within the second through hole 4. The adjusting screw 6 is inserted into the second through hole 4 of the fixed plate 3 with a clearance fit, forming a constraint that allows sliding only in the vertical direction. A locking mechanism is provided on the surface of the adjusting screw 6. The walking structure includes two connecting arms 12, which are fixedly connected to one side of the n-shaped plate 1 near both ends. Wheels 13 are fixedly connected to the middle of each connecting arm 12.

[0021] Through the above technical solution, the movable plate 5 can drive the scribing nail 10 to rise and fall inside the n-shaped plate 1. When not in operation, the scribing nail 10 can be completely stored inside the n-shaped plate 1. The two sides of the n-shaped plate 1 can block the scribing nail 10 to avoid collision and bending during transportation. The modular and detachable design of the scribing device means that when a single scribing nail 10 needs maintenance, the entire device does not need to be disassembled.

[0022] In this embodiment, the scribing device includes a connecting block 9 and a scribing pin 10. The scribing pin 10 is fixedly connected to the center of the lower surface of the connecting block 9. A handle 11 is integrally formed in the center of the upper surface of the connecting block 9. An internal thread groove is provided in the center of the upper surface of the movable plate 5 at the position corresponding to the first through hole 2. A threaded protrusion is provided on the outer side of the connecting block 9 at the position corresponding to the internal thread groove. The connecting block 9 is threadedly connected to the internal thread groove. A third through hole is provided in the lower surface of the movable plate 5 at the position corresponding to the center of the internal thread groove. The end of the scribing pin 10 passes through the third through hole and the first through hole 2.

[0023] With the above technical solution, the threaded connection of the connecting block 9 allows a single scribing tool to be removed and replaced simply by rotating the handle 11 when it is damaged, without the need for tools or disassembling other parts. The coaxial third through hole and the first through hole 2 are centered, which provides storage protection and avoids scribing twisting caused by the swing of the scribing nail 10. The handle 11 structure makes it easy to tighten manually, improving the convenience of maintenance.

[0024] In this embodiment, the locking mechanism includes a first locking nut 7 and a second locking nut 8. Both the first locking nut 7 and the second locking nut 8 are threaded to the surface of the adjusting screw 6. The first locking nut 7 is located above the fixed plate 3, and the second locking nut 8 is located below the fixed plate 3.

[0025] The double-nut design of the first locking nut 7 and the second locking nut 8 effectively prevents the marking device from loosening due to operational vibration, ensuring stable marking depth. Disassembly and assembly only require loosening the nuts with a wrench, making the operation simple.

[0026] In this embodiment, a fixing rod 14 is fixedly connected between the two connecting arms 12 and at one end away from the n-shaped plate 1. A connector is detachably installed in the middle of the fixing rod 14 for connecting a vehicle or equipment that can travel in the field, such as a tractor. The connector includes an adjusting rod 18. One end of the adjusting rod 18 is fixedly connected to a trailer hook 19. An adjusting hole 15 is provided in the center of the fixing rod 14. The other end of the adjusting rod 18 is inserted vertically into the adjusting hole 15. A threaded hole 16 is provided in the center of the side of the fixing rod 14 away from the n-shaped plate 1. The threaded hole 16 communicates with the adjusting hole 15. A quick-release screw 17 is threadedly connected inside the threaded hole 16. Positioning holes 20 are provided at equal intervals along the vertical direction on the side of the fixing rod 14. The end of the quick-release screw 17 passes through the positioning hole 20.

[0027] The device is designed with a height-adjustable connector, which allows it to be adapted to vehicles and equipment with different ground clearance, such as tractors. The quick-release screw 17 passes through the threaded hole 16 of the fixed rod 14 and the adjusting hole 15 on the side wall of the adjusting rod 18, forming a mechanical interlock and greatly improving the reliability of the connection.

[0028] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A line marking device for farmland operations, characterized in that, include n-shaped plate (1), both ends of the n-shaped plate (1) are fixedly connected to a fixing plate (3), a first through hole (2) is opened at equal intervals along the center of the upper surface of the n-shaped plate (1), and a second through hole (4) is opened in the center of the upper surface of the fixing plate (3). The movable plate (5) has a scribing tool detachably installed on the upper surface of the movable plate (5) at the position corresponding to the first through hole (2), and an adjusting screw (6) is fixedly connected on the lower surface of the movable plate (5) at the position corresponding to the second through hole (4). The adjusting screw (6) is slidably connected to the inside of the second through hole (4) in the vertical direction, and a locking mechanism is provided on the surface of the adjusting screw (6). The walking structure includes two connecting arms (12), which are respectively fixedly connected to one side of the n-shaped plate (1) and near both ends. A wheel (13) is fixedly connected to the middle of each of the two connecting arms (12).

2. The farmland marking device according to claim 1, characterized in that, The marking device includes a connecting block (9) and a marking pin (10). The marking pin (10) is fixedly connected to the center of the lower surface of the connecting block (9), and a handle (11) is integrally formed on the center of the upper surface of the connecting block (9).

3. A marking device for farmland operations according to claim 2, characterized in that, An internal thread groove is provided at the center of the upper surface of the movable plate (5) and at the position corresponding to the first through hole (2). A threaded protrusion is provided on the outer side of the connecting block (9) at the position corresponding to the internal thread groove. The connecting block (9) is threadedly connected to the internal thread groove. A third through hole is provided at the position corresponding to the center of the internal thread groove on the lower surface of the movable plate (5). The end of the scribing nail (10) passes through the third through hole and the first through hole (2).

4. A field marking device according to claim 1, characterized in that, The locking mechanism includes a first locking nut (7) and a second locking nut (8). Both the first locking nut (7) and the second locking nut (8) are threaded to the surface of the adjusting screw (6). The first locking nut (7) is located above the fixed plate (3), and the second locking nut (8) is located below the fixed plate (3).

5. A marking device for farmland operations according to claim 1, characterized in that, A fixing rod (14) is fixedly connected between the two connecting arms (12) and at one end away from the n-shaped plate (1). A connector is detachably installed in the middle of the fixing rod (14) for connecting vehicle equipment traveling in the field.

6. A field marking device according to claim 5, characterized in that, The connector includes an adjusting rod (18), one end of which is fixedly connected to a trailer hook (19), and an adjusting hole (15) is provided in the center of the fixing rod (14), and the other end of the adjusting rod (18) is inserted into the adjusting hole (15) in the vertical direction.

7. A field marking device according to claim 6, characterized in that, The fixing rod (14) has a threaded hole (16) in the center on the side away from the n-shaped plate (1). The threaded hole (16) is connected to the adjustment hole (15). The threaded hole (16) is connected to a quick-release screw (17) by a thread. The fixing rod (14) has positioning holes (20) at equal intervals along the vertical direction on its side. The end of the quick-release screw (17) passes through the positioning hole (20).

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