Green onion harvesting device

Abstract

The present application relates to harvester technical field, disclose a kind of scallion harvesting device, including vehicle body and the harvesting component being symmetrically arranged in the both sides of vehicle body, each harvesting component includes: frame, track, multiple pressure reducing components and soil loosening component, track includes side-by-side arrangement driving wheel, driven wheel and the track link being connected on driving wheel and driven wheel, motor is connected on driving wheel, multiple pressure reducing components are sequentially arranged in the inside of frame, each pressure reducing component includes two first connecting rods, driven shaft and two springs, two first connecting rods one end is respectively rotationally connected to frame, two springs one end is vertically connected to frame, two springs other end is respectively connected to two first connecting rods, driven shaft is abutted to track link;Soil loosening component includes second connecting rod and disc plough, disc plough rotationally connects second connecting rod.The device improves scallion harvesting efficiency while reducing damage to scallion.

Description

Technical Field

[0001] This invention relates to the field of harvester technology, and in particular to a scallion harvesting device. Background Technology

[0002] The most common method for harvesting scallions in the market is to manually dig rows with shovels to expose the scallions to the ground, and then harvest them manually. Manual digging involves directly cutting the scallions, and farmers, unfamiliar with the soil conditions, are prone to breaking the scallions, causing significant damage and resulting in low harvesting efficiency. There are also some mechanized harvesting methods: typically using a hand-held tractor to activate a soil-loosening device to dig the scallion roots out of the soil before collection. However, if the digging depth is too deep, a lot of soil will adhere to the scallions, hindering later collection and reducing harvesting efficiency. If the digging depth is too shallow, the scallion roots may still be cut, compromising the quality of the harvest. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a scallion harvesting device that can improve harvesting efficiency while reducing damage to scallions.

[0004] This invention provides a scallion harvesting device, comprising a vehicle body and harvesting components symmetrically arranged on both sides of the vehicle body. Each harvesting component includes: a frame, tracks, multiple pressure-reducing components, and soil-loosening components. The frame is mounted on the vehicle body. The tracks include a drive wheel, a driven wheel, and track links arranged side-by-side, and drive wheels and driven wheels are connected to the drive wheel and the driven wheel via a transmission chain. The drive wheel is rotatably connected to one end of the frame, and a motor is connected to the drive wheel. The driven wheel is rotatably connected to the end of the frame away from the drive wheel. Multiple pressure-reducing components are arranged sequentially on the inner side of the frame. Each pressure-reducing component includes two first links. The system includes a connecting rod, a driven shaft, and two springs. One end of each of the two first connecting rods is rotatably connected to the frame, and the two first connecting rods are parallel to each other. One end of each of the two springs is perpendicularly connected to the frame, and the other end of each spring is connected to the two first connecting rods. The driven shaft is rotatably connected to the other end of each of the two first connecting rods. The driven shaft is parallel to the drive wheel and abuts against the track chain links. The soil loosening assembly includes a second connecting rod and a disc plow. One end of the second connecting rod is perpendicularly fixed to the bottom of the frame, and the second connecting rod is located at one end of the frame. The disc plow is rotatably connected to the other end of the second connecting rod.

[0005] Optionally, the pressure-reducing assembly further includes: a crossbeam, a support plate, and a connecting plate, wherein the crossbeam is connected to two first connecting rods, the support plate is connected to the frame, the connecting plate is connected to the crossbeam, one end of each of the two springs is vertically connected to the support plate, and the other end of each of the two springs is connected to the connecting plate.

[0006] Optionally, the connecting plate includes a horizontal plate, an inclined plate, and two cylindrical tubes. One end of the inclined plate is connected to the crossbeam, and the other end of the inclined plate is inclinedly connected to the horizontal plate. The two cylindrical tubes are vertically connected to the horizontal plate, and two springs pass through the two cylindrical tubes and are connected to the horizontal plate. The compression length of the springs is greater than the length of the cylindrical tubes.

[0007] Optionally, the pressure-reducing assembly also includes a pressure-reducing bolt, which is connected to the cross plate and is used to adjust the compression of the spring.

[0008] Optionally, the pressure relief assembly also includes: two first bearing seats, two second bearing seats, and a connecting rod. The two first bearing seats are respectively connected to opposite ends on one side of the frame, the two second bearing seats are arranged in parallel between the two first bearing seats, the connecting rod is connected to the two first bearing seats and the two second bearing seats, and the two first connecting rods are respectively connected to the two second bearing seats.

[0009] Optionally, it also includes a transmission assembly, which includes a first sprocket, a second sprocket, and a chain. The diameter of the first sprocket is larger than that of the second sprocket. The end of the drive wheel away from the drive bearing seat is fixedly connected to the first sprocket. The first sprocket and the second sprocket are connected by a chain. The second sprocket is connected to the output end of the motor. The motor is connected to the frame.

[0010] Optionally, it also includes: a chain cover, which is connected to the frame, and the first sprocket, the second sprocket and the chain are located inside the chain cover.

[0011] Optionally, the second connecting rod includes a vertical rod and a horizontal rod, with the vertical rod vertically connected to one end of the bottom of the frame and the horizontal rod vertically connected to the end of the vertical rod away from the frame.

[0012] Optionally, the drive wheel and driven shaft can be made of stainless steel.

[0013] Optionally, multiple profiles are connected to the frame.

[0014] Optionally, a fixed bracket is provided at the drive wheel of the frame. The fixed bracket includes a drive wheel bracket and a profile connector. The fixed bracket is connected to the profile connector, and the profile connector is connected to the profile.

[0015] The technical solution provided by the embodiments of the present invention has the following advantages compared with the prior art:

[0016] This invention provides a scallion harvesting device, comprising a vehicle body and harvesting components symmetrically arranged on both sides of the vehicle body. Each harvesting component includes: a frame, tracks, multiple pressure-reducing components, and soil-loosening components. The frame is mounted on the vehicle body. The tracks include a drive wheel, a driven wheel, and track chains arranged side-by-side, and the drive wheel and driven wheel are connected by a drive chain. The drive wheel is rotatably connected to one end of the frame, and a motor is connected to the drive wheel. The driven wheel is rotatably connected to the end of the frame away from the drive wheel. Multiple pressure-reducing components are arranged sequentially on the inner side of the frame, and each pressure-reducing component includes two... The system comprises a connecting rod, a driven shaft, and two springs. One end of each of the two first connecting rods is rotatably connected to the frame, and the two first connecting rods are parallel to each other. One end of each of the two springs is perpendicularly connected to the frame, and the other end of each spring is connected to the two first connecting rods. The driven shaft is rotatably connected to the other end of each of the two first connecting rods. The driven shaft is parallel to the drive wheel and abuts against the track chain links. The soil loosening assembly includes a second connecting rod and a disc plow. One end of the second connecting rod is perpendicularly fixed to the bottom of the frame, and the second connecting rod is located at one end of the frame. The disc plow is rotatably connected to the other end of the second connecting rod. When harvesting is needed, the vehicle is placed in the scallion field. As the vehicle moves, the disc plow loosens the soil on both sides of the scallions. The frame, driven shaft, and track links form a trapezoidal structure. Because the two harvesting components are positioned opposite each other on the vehicle, the distance between the two track links near the two ends of the frame is greater than the distance between the two track links near the middle of the frame. This makes it easier for the scallions to enter between the two track links. Once the scallions are between the two track links, the control motor rotates, which drives the drive wheel to rotate. The drive wheel then moves the track links. As the scallions pass between the two track links, the friction generated by the compression of the track links pulls the scallions out. Because a spring is installed, connected to the frame and the first connecting rod, the pressure on the surface of the scallions is reduced. This ensures the necessary pressure for harvesting while minimizing damage to the scallion skin. This device improves scallion harvesting efficiency while reducing damage to the scallions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a scallion harvesting device provided in an embodiment of the present invention;

[0018] Figure 2 This is a top view of a scallion harvesting device provided in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of a scallion harvesting device provided in an embodiment of the present invention from another perspective;

[0020] Figure 4 for Figure 3 Enlarged view of a partial structural diagram of region A in the middle;

[0021] Figure 5 for Figure 3 Enlarged view of the partial structure of region B in the middle;

[0022] Figure 6 This is a schematic diagram showing the connection relationship between the pressure-reducing components in an embodiment of the present invention;

[0023] Figure 7 for Figure 6 Enlarged schematic diagram of the local structure of region C.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Frame; 2. Drive assembly; 20. Drive bearing housing; 21. Drive wheel; 22. Motor; 3. Pressure relief assembly; 30. First connecting rod; 31. Driven shaft; 32. First bearing housing; 33. Second bearing housing; 34. Connecting rod; 40. Support plate; 41. Spring; 42. Connecting plate; 420. Horizontal plate; 421. Inclined plate; 422. Cylindrical tube; 43. Crossbeam; 44. Pressure relief bolt; 5. Track chain link; 6. Transmission assembly; 60. First sprocket; 61. Second sprocket; 62. Chain; 7. Soil loosening assembly; 70. Second connecting rod; 71. Disc plow; 72. Disc plow fixing component; 8. Chain cover; 9. Fixing bracket; 10. Profile. Detailed Implementation

[0026] The following detailed description of a specific embodiment of the present invention is provided in conjunction with the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this invention 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 invention.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] Furthermore, in the description of this invention, "a plurality of" refers to two or more. The terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0030] The present invention will be described below through several specific embodiments. To keep the following description of the embodiments clear and concise, detailed descriptions of known functions and components may be omitted. When any component of an embodiment of the present invention appears in more than one drawing, the component may be represented by the same reference numerals in each drawing.

[0031] Reference Figures 1 to 7 , Figure 1 This is a perspective view of the scallion harvesting device provided in an embodiment of the present invention. Figure 1 This is a schematic diagram of the structure of a scallion harvesting device provided in an embodiment of the present invention; Figure 2 This is a top view of a scallion harvesting device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a scallion harvesting device provided in an embodiment of the present invention from another perspective; Figure 4 for Figure 3 Enlarged view of a partial structural diagram of region A in the middle; Figure 5 for Figure 3 Enlarged view of the partial structure of region B in the middle; Figure 6 This is a schematic diagram showing the connection relationship between the pressure-reducing components in an embodiment of the present invention; Figure 7 for Figure 6 Enlarged view of a local structural diagram of region C in the middle. (See attached image.) Figures 1 to 7As shown, this embodiment of the invention provides a scallion harvesting device, including a vehicle body and harvesting components symmetrically arranged on both sides of the vehicle body. Each harvesting component includes: a frame 1, tracks, multiple pressure-reducing components 3, and a soil-loosening component 7. The frame 1 is mounted on the vehicle body; the tracks include a drive wheel 21, a driven wheel, and a track chain 5 that is driven by the drive wheel 21 and the driven wheel, arranged side by side. The drive wheel 21 is rotatably connected to one end of the frame 1, and a motor 22 is connected to the drive wheel 21. The driven wheel is rotatably connected to the end of the frame 1 away from the drive wheel 21; multiple pressure-reducing components 3 are arranged sequentially on the inner side of the frame 1, and each pressure-reducing component 3 includes two first connecting rods 30 and a driven... The frame 1 is composed of a shaft 31 and two springs 41. One end of each of the two first connecting rods 30 is rotatably connected to the frame 1, and the two first connecting rods 30 are parallel to each other. One end of each of the two springs 41 is perpendicularly connected to the frame 1, and the other end of each spring 41 is connected to the two first connecting rods 30. The driven shaft 31 is rotatably connected to the other end of each of the two first connecting rods 30. The driven shaft 31 is parallel to the driving wheel 21 and abuts against the track chain link 5. The soil loosening assembly 7 includes a second connecting rod 70 and a disc plow 71. One end of the second connecting rod 70 is vertically fixed to the bottom of the frame 1, and the second connecting rod 70 is located at one end of the frame 1. The disc plow 71 is rotatably connected to the other end of the second connecting rod 70. It should be understood that the rotatable connection between the first connecting rod 30 and the frame 1 can be achieved through bearing seats or aluminum profile connections, etc. This example does not impose specific limitations, as long as the rotatable effect is achieved.

[0032] When harvesting is needed, the vehicle is placed in the scallion field. As the vehicle moves, the disc plow 71 loosens the soil on both sides of the scallions. The frame 1, drive wheel 21, driven shaft 31, and track links 5 form a trapezoidal structure. Because the two harvesting components are positioned opposite each other on the vehicle, the distance between the two track links 5 near the two ends of the frame 1 is greater than the distance between the two track links 5 near the middle of the frame 1. This makes it easier for the scallions to enter between the two track links 5. After the chain links 5 are between each other, the control motor 22 rotates, which drives the drive wheel 21 to rotate. The drive wheel 21 rotates and drives the track chain links 5 to move. When the scallion passes between the two track chain links 5, the friction generated by the compression of the scallion by the track chain links 5 pulls the scallion out. Because a spring 41 is provided, which is connected to the frame 1 and the crossbeam 43, the pressure on the surface of the scallion can be reduced. While ensuring the pressure required for scallion harvesting, the damage to the scallion skin is reduced. This device improves harvesting efficiency while reducing damage to the scallion.

[0033] Reference Figure 6 and Figure 7 , Figure 6 This is a schematic diagram showing the connection relationship between pressure-reducing component 3 and pressure-reducing component 3 in an embodiment of the present invention; Figure 7for Figure 6 Enlarged view of a local structural diagram of region C in the middle. (See attached image.) Figure 6 and Figure 7 As shown, the pressure-reducing assembly also includes: a crossbeam 43, a support plate 40, and a connecting plate 42. The crossbeam 43 is connected to two first connecting rods 30, the support plate 40 is connected to the frame 1, and the connecting plate 42 is connected to the crossbeam 43. One end of each of the two springs 41 is vertically connected to the support plate 40, and the other end of each of the two springs 41 is connected to the connecting plate 42. The arrangement of the crossbeam 43, the support plate 40, and the connecting plate 42 makes the spring connection more stable, improves the pressure-reducing effect, further reduces damage to the surface of the scallions during harvesting, and improves the quality of scallion harvesting.

[0034] Refer again Figure 6 and Figure 7 , Figure 6 This is a schematic diagram showing the connection relationship between pressure-reducing component 3 and pressure-reducing component 3 in an embodiment of the present invention; Figure 7 for Figure 6 Enlarged view of a local structural diagram of region C in the middle. (See attached image.) Figure 6 and Figure 7 As shown, the connecting plate 42 includes a horizontal plate 420, an inclined plate 421, and two cylindrical tubes 422. One end of the inclined plate 421 is connected to the crossbeam 43, and the other end is inclinedly connected to the horizontal plate 420. The two cylindrical tubes 422 are vertically connected to the horizontal plate 420. Two springs 41 pass through the two cylindrical tubes 422 and are connected to the horizontal plate 420. The compression length of the springs 41 is greater than the length of the cylindrical tubes 422. The cylindrical tubes 422 prevent the springs 41 from shifting, making the harvesting process more stable. The compression length of the springs 41 is greater than the length of the cylindrical tubes 422, ensuring that the cylindrical tubes 422 do not affect the contraction of the springs 41. Because the crossbeam 43 and the springs are not in planar contact but are inclined, the connecting plate 42, consisting of a horizontal plate 420 and an inclined plate 421, can better fix the springs 41 and ensure that the springs are perpendicular to the frame 1, thus improving the working environment of the springs and making the force on the springs more uniform.

[0035] Refer again Figure 6 and Figure 7 , Figure 6 This is a schematic diagram showing the connection relationship between pressure-reducing component 3 and pressure-reducing component 3 in an embodiment of the present invention; Figure 7 for Figure 6 Enlarged view of a local structural diagram of region C in the middle. (See attached image.) Figure 6 and Figure 7 As shown, the pressure-reducing assembly 3 also includes a pressure-reducing bolt 44, which is connected to the horizontal plate 420. The pressure-reducing bolt 44 is used to adjust the compression degree of the spring 41, thereby achieving controllable pressure adjustment for harvesting different types of scallions.

[0036] Refer again Figure 1 , Figure 2 , Figure 6 and Figure 7 , Figure 1 This is a schematic diagram of the structure of a scallion harvesting device provided in an embodiment of the present invention; Figure 2 This is a top view of a scallion harvesting device provided in an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram showing the connection relationship between pressure-reducing component 3 and pressure-reducing component 3 in an embodiment of the present invention; Figure 7 for Figure 6 Enlarged schematic diagram of the local structure of region C; as shown Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the pressure-reducing assembly 3 also includes: two first bearing seats 32, two second bearing seats 33, and a connecting rod 34. The two first bearing seats 32 are respectively connected to opposite ends on one side of the frame 1. The two second bearing seats 33 are arranged parallel between the two first bearing seats 32. The connecting rod 34 connects the two first bearing seats 32 and the two second bearing seats 33. The two first connecting rods 30 are respectively connected to the two second bearing seats 33. The two first bearing seats 32, the two second bearing seats 33, and the connecting rod 34 make the rotation of the first connecting rod 30 more stable, thereby making the driven shaft 31 more stable and further improving the quality of scallion harvesting.

[0038] Refer again Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of the structure of a scallion harvesting device provided in an embodiment of the present invention from another perspective; Figure 4 for Figure 3 Enlarged schematic diagram of a local structure in region A; as shown Figure 3 and Figure 4 As shown, it also includes a transmission assembly 6, which includes a first sprocket 60, a second sprocket 61, and a chain 62. The diameter of the first sprocket 60 is larger than the diameter of the second sprocket 61. The end of the drive wheel 21 away from the drive bearing seat 20 is fixedly connected to the first sprocket 60. The first sprocket 60 and the second sprocket 61 are connected by the chain 62. The second sprocket 61 is connected to the output end of the motor 22. The motor 22 is connected to the frame 1.

[0039] The vehicle is placed in the scallion field. As the vehicle moves, the scallions enter between two track links 5. The control motor 22 rotates, driving the second sprocket 61. The second sprocket 61 transmits power to the chain 62, which in turn drives the first sprocket 60. The first sprocket 60 then drives the drive wheel 21, thereby causing the track links 5 to harvest the scallions. The scallions pass between the two track links 5, and the friction generated by the compression of the track links pulls the scallions out. The transmission assembly 6 makes it easier to fix the motor and reduces the overall height of the device, making it more stable.

[0040] Refer again Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a scallion harvesting device provided in an embodiment of the present invention; Figure 2 This is a top view of a scallion harvesting device provided in an embodiment of the present invention; as shown. Figure 1 and Figure 2 As shown, the device also includes a chain cover 8, which is connected to the frame 1. The first sprocket 60, the second sprocket 61, and the chain 62 are located inside the chain cover 8. The chain cover 8 protects the first sprocket 60, the second sprocket 61, and the chain 62, preventing foreign objects from getting caught in during scallion harvesting.

[0041] Multiple profiles 10 are connected to the frame 1. The multiple profiles 10 provide support for the device, making it more stable. A fixed bracket 9 is provided at the drive wheel 21 of the frame 1. The fixed bracket 9 includes a drive wheel bracket and a profile connector. The fixed bracket 9 is connected to the profile connector, and the profile connector is connected to the profile. The drive wheel bracket makes the track chain links 5 more stable and prevents the track chain links 5 from deviating from the drive wheel 21.

[0042] The drive wheel 21 and driven shaft 31 are made of stainless steel. The stainless steel material can improve the service life of the device.

[0043] Refer again Figures 1 to 3 and Figure 5 , Figure 1 This is a schematic diagram of the structure of a scallion harvesting device provided in an embodiment of the present invention; Figure 2 This is a top view of a scallion harvesting device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a scallion harvesting device provided in an embodiment of the present invention from another perspective; Figure 5 for Figure 3 Enlarged schematic diagram of the local structure of region B; as shown Figures 1 to 3 and Figure 5As shown, the soil loosening component 7 includes a second connecting rod 70 and a disc plow 71. One end of the second connecting rod 70 is connected to one end of the bottom of the frame 1, and the disc plow 71 is rotatably connected to the other end of the second connecting rod 70. The second connecting rod 70 includes a vertical rod and a horizontal rod. The vertical rod is vertically connected to one end of the bottom of the frame 1, and the horizontal rod is vertically connected to the end of the vertical rod away from the frame 1.

[0044] The vertical rod of the second connecting rod 70 is connected to the frame 1 by welding. The disc plow 71 is connected to the horizontal rod by the disc plow fixing part 72, so that when the disc plow 71 loosens the soil on both sides of the scallion, it loosens the soil at one end in advance, thereby enabling the harvesting device to pull the scallion out of the scallion field more effectively, and further preventing the scallion from being damaged during harvesting.

[0045] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A scallion harvesting device, characterized in that, The vehicle includes a vehicle body and harvesting components symmetrically arranged on both sides of the vehicle body, each of the harvesting components comprising: Frame (1), mounted on the vehicle body; The track includes a drive wheel (21) and a driven wheel arranged side by side, and a track chain link (5) that is connected to the drive wheel (21) and the driven wheel. The drive wheel (21) is rotatably connected to one end of the frame (1). A motor (22) is connected to the drive wheel (21). The driven wheel is rotatably connected to one end of the frame (1) away from the drive wheel (21). Multiple pressure-reducing components (3) are arranged sequentially on the inner side of the frame (1). Each pressure-reducing component (3) includes two first connecting rods (30), a driven shaft (31), and two springs (41). One end of each of the two first connecting rods (30) is rotatably connected to the frame (1) and is parallel to each other. One end of each of the two springs (41) is perpendicularly connected to the frame (1) and the other end of each spring (41) is connected to the two first connecting rods (30). The driven shaft (31) is rotatably connected to the other end of each of the two first connecting rods (30). The driven shaft (31) is parallel to the drive wheel (21) and abuts against the track chain link (5). The soil loosening component (7) includes a second connecting rod (70) and a disc plow (71). One end of the second connecting rod (70) is vertically fixed to the bottom of the frame (1), and the second connecting rod (70) is located at one end of the frame (1). The disc plow (71) is rotatably connected to the other end of the second connecting rod (70).

2. The scallion harvesting device as described in claim 1, characterized in that, The pressure-reducing assembly further includes: a crossbeam (43), a support plate (40), and a connecting plate (42). The crossbeam (43) is connected to two first connecting rods (30). The support plate (40) is connected to the frame (1). The connecting plate (42) is connected to the crossbeam (43). One end of each of the two springs (41) is vertically connected to the support plate (40), and the other end of each of the two springs (41) is connected to the connecting plate (42).

3. The scallion harvesting device as described in claim 2, characterized in that, The connecting plate (42) includes a horizontal plate (420), an inclined plate (421), and two cylindrical tubes (422). One end of the inclined plate (421) is connected to the crossbeam (43), and the other end of the inclined plate (421) is inclinedly connected to the horizontal plate (420). The two cylindrical tubes (422) are vertically connected to the horizontal plate (420). Two springs (41) pass through the two cylindrical tubes (422) and are connected to the horizontal plate (420). The compression length of the springs (41) is greater than the length of the cylindrical tubes (422).

4. The scallion harvesting device as described in claim 3, characterized in that, The pressure-reducing assembly (3) also includes a pressure-reducing bolt (44), which is connected to the cross plate (420) and is used to adjust the compression degree of the spring (41).

5. The scallion harvesting device as described in claim 1, characterized in that, The pressure relief assembly (3) further includes: two first bearing seats (32), two second bearing seats (33) and a connecting rod (34). The two first bearing seats (32) are respectively connected to opposite ends on one side of the frame (1). The two second bearing seats (33) are arranged in parallel between the two first bearing seats (32). The connecting rod (34) is connected to the two first bearing seats (32) and the two second bearing seats (33). The two first connecting rods (30) are respectively connected to the two second bearing seats (33).

6. The scallion harvesting device as described in claim 1, characterized in that, It also includes a transmission assembly (6), which includes a first sprocket (60), a second sprocket (61), and a chain (62). The diameter of the first sprocket (60) is larger than that of the second sprocket (61). The end of the drive wheel (21) away from the drive bearing seat (20) is fixedly connected to the first sprocket (60). The first sprocket (60) and the second sprocket (61) are connected by the chain (62). The second sprocket (61) is connected to the output end of the motor (22). The motor (22) is connected to the frame (1).

7. The scallion harvesting device as described in claim 6, characterized in that, Also includes: A chain (62) cover is connected to the frame (1), and the first sprocket (60), the second sprocket (61) and the chain (62) are located inside the chain (62) cover.

8. The scallion harvesting device as described in claim 1, characterized in that, The second connecting rod (70) includes a vertical rod and a horizontal rod. The vertical rod is vertically connected to one end of the bottom of the frame (1), and the horizontal rod is vertically connected to the end of the vertical rod away from the frame (1).

9. The scallion harvesting device as described in claim 1, characterized in that, The drive wheel (21) and driven shaft (31) are made of stainless steel.

10. The scallion harvesting device as described in claim 1, characterized in that, Multiple profiles (10) are connected to the frame (1).

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