Rhizome medicine digging anti-breaking device

Abstract

The utility model relates to agricultural implement technical field discloses rhizome medicinal material digs and prevents broken equipment, including frame, the outside of frame is provided with screening mechanism, the screening mechanism is used for screening separation to the medicinal material in the soil heap of digging, the rear side of frame is provided with moving mechanism, the moving mechanism is used for adjusting the height of device to change the digging angle to adapt to the digging of different kinds of medicinal material, the screening mechanism includes steering box, the steering box fixedly connected in the front top of frame, in the utility model, through the backward conveying under the rotation of conveying roller to the soil heap of digging, the soil block is primarily screened at the clearance between rollers, further brushes the soil remaining on the medicinal material surface by brush roller, finally through the push rod to separate the medicinal material in the collecting box from the adhering soil under the vibration, through three screenings, the removal rate of the soil adhered on the medicinal material is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a device for preventing the breakage of rhizome medicinal materials during digging. Background Technology

[0002] Agricultural machinery refers to the mechanical equipment and tools used in the processes of cultivation, planting, management, harvesting, processing, and storage in agricultural production. It includes tractors, seeders, harvesters, irrigation equipment, plant protection machinery, threshers, and dryers, covering a wide range of devices from traditional hand tools to modern intelligent machinery. The application of agricultural machinery can improve production efficiency, reduce labor intensity, and optimize resource utilization. It is an important support for agricultural modernization and is widely used in planting, animal husbandry, forestry, and fishery.

[0003] Rhizome and stem herb digging and breakage prevention equipment is agricultural machinery specifically designed for harvesting underground rhizome and stem herbs. It aims to reduce breakage damage during the digging process. It uses vibration digging, flexible clamping or bionic shovel digging technology, combined with depth adjustment and soil separation devices, to ensure that the herbs are extracted intact. This type of equipment can reduce the damage rate of manual harvesting, improve the quality and economic benefits of herbs, and is used for large-scale planting and mechanized harvesting of high-value rhizome and stem crops.

[0004] Currently available root and rhizome medicinal herb digging and anti-breakage equipment consists of a digging mechanism and a screening mechanism. This equipment is connected to the rear of a tractor, which provides power and pulls it forward. As it moves forward, the digging mechanism extends into the soil to excavate the mound containing the medicinal herbs. The screening mechanism then separates the herbs from the mound using vibration. This achieves the digging and screening of the medicinal herbs. However, during the screening process, if the soil moisture is too high, the vibration of the equipment is insufficient to completely remove the soil, leaving some residual soil on the herbs. This residual soil can easily cause root entanglement, leading to secondary damage to the herbs during the screening process, thus failing to meet the needs of users. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a device for preventing the breakage of rhizomes during excavation, aiming to improve the problem that existing devices for preventing the breakage of rhizomes during excavation cannot completely remove the soil adhering to the medicinal materials, resulting in the roots and stems of the medicinal materials becoming entangled.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a rhizome-type medicinal material excavation and anti-breakage device, including a frame, a screening mechanism is provided on the outside of the frame, the screening mechanism is used to screen and separate the medicinal materials in the excavated soil pile, and a moving mechanism is provided on the rear side of the frame, the moving mechanism is used to adjust the height of the device to change the excavation angle to adapt to the excavation of different types of medicinal materials. The screening mechanism includes a steering box, which is fixedly connected to the top front of the frame. A transmission rod is fixedly connected to the output ends on both sides of the steering box. A rotating block is fixedly connected to the outer side of the left side of the transmission rod, and a rotating block is rotatably connected to the outer side of the rotating block. A push rod is rotatably connected to the bottom of the rotating block, and a collection box is fixedly connected to the rear end of the push rod. The left and right sides of the collection box are slidably connected to the inner left and right sides of the frame, respectively. A fixing ring is fixedly connected to the lower left side of the frame, and the push rod is slidably connected to the inside of the fixing ring. A transmission rod is rotatably connected to the upper rear end of the frame, with both ends of the transmission rod penetrating the frame. A transmission assembly is located at the front of the steering box, a power assembly is located inside the frame, a positioning assembly is located in the middle left side of the frame, and a soil removal assembly is located at the upper left side of the frame.

[0007] As a further description of the above technical solution: The moving mechanism includes a fixed frame, which is fixedly connected to the rear side of the machine frame. The collection box is slidably connected to the fixed frame. A rotating rod is rotatably connected to the top of the fixed frame. Transmission gears are fixedly connected to the left and right sides of the outer side of the rotating rod. Support columns are slidably connected to the left and right sides of the inner side of the fixed frame. A rack is fixedly connected to the inner side of the support column. The rack meshes with the transmission gears. Rollers are rotatably connected to the outer side of the support column. A hand crank assembly is provided on the outer side of the fixed frame. A digging assembly is provided on the lower side of the inner front end of the machine frame.

[0008] As a further description of the above technical solution: The transmission assembly includes a universal joint, which is fixedly connected to the input end of the steering gearbox, and a rotating rod is fixedly connected to the front side of the universal joint.

[0009] As a further description of the above technical solution: The power assembly includes a transmission belt, with a second pulley fixedly connected to the outside of a right-side transmission rod. A first pulley is fixedly connected to the right end of the second transmission rod, and a transmission belt is provided on the outside of the first pulley. The first pulley is connected to the second pulley via the transmission belt. Transmission gears are rotatably connected to all four sides of the inner bottom of the frame. Multiple transmission gears are fixedly connected to the second transmission rod on the rear side of the inner bottom of the frame. Transmission chains are provided on both the left and right sides of the inner bottom of the frame. Multiple transmission gears on the same side of the frame are connected via transmission chains. Conveyor rollers are fixedly connected to adjacent sides of two transmission chains. A protective cover is fixedly connected to the upper middle part of the inner side of the outer side of the frame.

[0010] As a further description of the above technical solution: The positioning component includes a drive gear one, which is fixedly connected to the left end of the transmission rod two. A transmission chain two is provided on the outer side of the drive gear one. Positioning blocks are rotatably connected to the left and right sides of the inner middle of the frame. A driven gear one is fixedly connected to the outer side of the positioning block on the left side through the frame. The drive gear one is connected to the driven gear one through the transmission chain two.

[0011] As a further description of the above technical solution: The soil removal assembly includes a brush roller, which is rotatably connected to the top rear side of the inner side of the frame. The left end of the brush roller passes through the frame and is fixedly connected to a second drive gear. The outer side of the left end of the second transmission rod is fixedly connected to a second driven gear. The second drive gear and the second driven gear are meshed together.

[0012] As a further description of the above technical solution: The hand-cranked assembly includes a fixed block, which is rotatably connected to the right side of the fixed frame. The left end of the fixed block passes through the fixed frame and is slidably connected to the rotating rod. A crank handle is slidably connected inside the right side of the fixed block.

[0013] As a further description of the above technical solution: The excavation assembly includes an excavation tool, which is fixedly connected to the front side of the bottom inside the frame, and a protective sleeve is fixedly connected to the outside of the excavation tool.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the excavated soil is conveyed backward by the rotation of the conveying rollers. The soil clods are initially screened at the gap between the rollers. After the initial screening, the rotation of the brush rollers further removes the residual soil on the surface of the medicinal materials to improve the screening effect. Finally, the reciprocating linear motion of the push rod pushes the collection box to slide back and forth along the frame, so that the medicinal materials in the collection box are separated from the sticky soil under the action of vibration. The three screenings greatly improve the removal rate of the sticky soil on the medicinal materials, so that the roots of the medicinal materials are not easily entangled, thus ensuring the integrity of the medicinal materials.

[0015] 2. In this utility model, when the tractor pulls the whole machine forward, the rollers roll along the ground. When it is necessary to adjust the digging depth, the crank handle is pulled out and rotated to raise and lower the support column. The raising and lowering movement of the support column changes the relative height between the frame and the ground, thereby realizing the adjustment of the digging angle. After the adjustment is completed, the crank handle is pushed back to its original position and locked into the groove of the fixed frame to keep the rotating rod in a fixed state, ensuring that the height of the support column is stable during operation. During the movement, the rollers always keep in contact with the ground to ensure the smooth movement of the whole machine. Attached Figure Description

[0016] Figure 1This is a perspective view of the rhizome-based medicinal herb digging and breakage prevention device proposed in this utility model; Figure 2 This is a side view of the rhizome and stem herb digging and breakage prevention device proposed in this utility model; Figure 3 This is a partial structural exploded view of the rhizome and stem herb digging and breakage prevention device proposed in this utility model; Figure 4 This is a partial structural exploded view of the screening mechanism of the root and rhizome medicinal material digging and breakage prevention device proposed in this utility model; Figure 5 This is a structural exploded view of the moving mechanism of the rhizome and stem herb digging and breakage prevention device proposed in this utility model; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is a partial structural exploded view of the moving mechanism of the rhizome-type medicinal herb digging and breakage prevention device proposed in this utility model.

[0017] Legend: 1. Frame; 2. Screening mechanism; 21. Turning box; 22. Transmission rod one; 23. Rotating block one; 24. Rotating block two; 25. Push rod; 26. Transmission assembly; 261. Universal joint; 262. Rotating rod two; 27. Power assembly; 271. Pulley one; 272. Transmission belt; 273. Pulley two; 274. Transmission gear one; 275. Protective cover; 276. Transmission chain one; 277. Conveyor roller; 28. Positioning assembly; 281. Drive gear one; 282. Transmission chain two; 283. 1. Driven gear 1; 284. Positioning block; 29. ​​Soil removal assembly; 291. Brush roller; 292. Driven gear 2; 293. Driven gear 2; 210. Collection box; 211. Transmission rod 2; 212. Fixing ring; 3. Moving mechanism; 31. Fixing frame; 32. Rotating rod 1; 33. Transmission gear 2; 34. Support column; 35. Rack; 36. Roller; 37. Hand crank assembly; 371. Fixing block; 372. Crank handle; 38. Digging assembly; 381. Digging tool; 382. Protective sleeve. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1 , Figure 3 and Figure 4An embodiment of this utility model provides a rhizome-type medicinal material excavation and anti-breakage device, including a frame 1, a screening mechanism 2 is provided on the outside of the frame 1, the screening mechanism 2 is used to screen and separate the medicinal materials in the excavated soil pile, and a moving mechanism 3 is provided on the rear side of the frame 1, the moving mechanism 3 is used to adjust the height of the device to change the excavation angle to adapt to the excavation of different types of medicinal materials. The screening mechanism 2 includes a steering box 21, which is a T-series spiral bevel gear. The steering box 21 is fixedly connected to the top front of the frame 1. Both the left and right output ends of the steering box 21 are fixedly connected to transmission rods 22. The steering box 21 converts the tractor's power to the two sides of the device. A rotating block 23 is fixedly connected to the outer side of the left transmission rod 22. When the left transmission rod 22 rotates, the rotating block 23 rotates synchronously. A rotating block 24 is rotatably connected to the outer side of the rotating block 23. When the rotating block 23 rotates... The rotating block 24 rotates, and a push rod 25 is rotatably connected to the bottom of the rotating block 24. When the rotating block 24 rotates, it drives the push rod 25 to move. A collection box 210 is fixedly connected to the rear end of the push rod 25. The left and right sides of the collection box 210 are slidably connected to the left and right sides of the inside of the frame 1, respectively. When the push rod 25 moves, it drives the collection box 210 to slide along the frame 1 to achieve the effect of screening soil. A fixing ring 212 is fixedly connected to the lower left side of the frame 1. The push rod 25 is slidably connected to the inside of the fixing ring 212 and is held in place by the fixing ring 212. The position of push rod 25 is to prevent push rod 25 from tilting. A transmission rod 211 is rotatably connected to the upper rear end of the inner side of the frame 1. Both ends of the transmission rod 211 pass through the frame 1, transmitting power from the outside of the frame 1 to the inside of the frame 1. A transmission assembly 26 is located on the front side of the steering box 21. A power assembly 27 is located inside the frame 1. A positioning assembly 28 is located in the middle of the left side of the frame 1. A soil removal assembly 29 is located at the upper left side of the frame 1. The soil removal assembly 29 includes a brush roller 291. 291 is rotatably connected to the top rear side of the inner side of the frame 1. The rotation of the brush roller 291 further removes the dirt from the medicinal materials. The left end of the brush roller 291 passes through the frame 1 and is fixedly connected to the second drive gear 292. The outer side of the left end of the transmission rod 211 is fixedly connected to the second driven gear 293. The second drive gear 292 and the second driven gear 293 are meshed. When the transmission rod 211 rotates, it drives the second driven gear 293 to rotate, which in turn causes the second drive gear 292 to rotate in the opposite direction to achieve the effect of brushing away the dirt adhering to the medicinal materials. Specifically, the tractor power is input to the steering box 21, which distributes the power to the transmission rods 22 on the left and right sides, causing the two transmission rods 22 to rotate synchronously. The left transmission rod 22 drives the rotating block 23 to rotate, and the rotating block 23 converts the rotational motion into the reciprocating linear motion of the push rod 25 through the rotating block 24. The push rod 25 pushes the collection box 210 to slide back and forth along the frame 1, so that the medicinal materials in the collection box 210 are separated from the soil under the action of vibration. At the same time, the transmission rod 211 rotates with the power output of the steering box 21, and through the meshing of the driven gear 293 and the driving gear 292, it drives the brush roller 291 to rotate in the opposite direction. The rotation of the brush roller 291 further brushes away the soil remaining on the surface of the medicinal materials to improve the screening effect. The fixing ring 212 constrains the movement trajectory of the push rod 25 to prevent it from deviating during operation and ensures the stable sliding of the collection box 210.

[0020] Reference Figure 2 , Figure 5 and Figure 6 The moving mechanism 3 includes a fixed frame 31, which is fixedly connected to the rear side of the frame 1. The collection box 210 is slidably connected to the fixed frame 31. A rotating rod 32 is rotatably connected to the top of the fixed frame 31. A transmission gear 33 is fixedly connected to the left and right sides of the rotating rod 32. When the rotating rod 32 rotates, it drives the transmission gear 33 to rotate synchronously. Support columns 34 are slidably connected to the left and right sides of the interior of the fixed frame 31. A rack 35 is fixedly connected to the interior of the support column 34. The rack 35 meshes with the transmission gear 33. When the transmission gear 33 rotates, the rack 35 causes the support column 34 to rise and fall, thereby changing the digging angle of the device. A roller 36 is rotatably connected to the outside of the support column 34. The roller 36 causes the device to move. The movement is more stable during the process. A hand crank assembly 37 is provided on the outside of the fixed frame 31, and a digging assembly 38 is provided on the lower front side of the inner side of the frame 1. The hand crank assembly 37 includes a fixed block 371, which is rotatably connected to the right side of the fixed frame 31. The left end of the fixed block 371 passes through the fixed frame 31 and is slidably connected to the rotating rod 32. When the fixed block 371 rotates, it drives the rotating rod 32 to rotate synchronously. A crank handle 372 is slidably connected inside the right side of the fixed block 371. When the height of the device needs to be adjusted, the crank handle 372 is held to pull out the fixed block 371. The fixed block 371 is rotated by rotating the crank handle 372. After the adjustment is completed, the fixed block 371 is pushed back and the crank handle 372 is inserted into the groove of the fixed frame 31 to ensure the height stability of the device during operation. Specifically, when the tractor pulls the machine forward, the rollers 36 roll along the ground, supporting the movement of the entire device. When the digging depth needs to be adjusted, the crank handle 372 is pulled out and rotated to drive the rotating rod 32 to rotate. The rotating rod 32 drives the transmission gear 33 to rotate. Through the meshing of the transmission gear 33 and the rack 35, the support column 34 is raised and lowered. The raising and lowering of the support column 34 changes the relative height of the frame 1 and the ground, thereby adjusting the digging angle. After the adjustment is completed, the crank handle 372 is pushed back to its original position and locked into the locking groove of the fixing frame 31, keeping the rotating rod 32 in a fixed state to ensure the height of the support column 34 is stable during the movement. This mechanism achieves height adjustment through the transmission gear 33 and the rack 35, enabling the device to adapt to the digging operation requirements of different depths. The manual operation mode ensures the reliability and stability of the adjustment, while the structure of the rollers 36 ensures smooth movement.

[0021] Reference Figure 3 , Figure 4 and Figure 7The transmission assembly 26 includes a universal joint 261, which is fixedly connected to the input end of the steering box 21. A rotating rod 262 is fixedly connected to the front side of the universal joint 261. The rotational power of the tractor is transmitted to the steering box 21 through the universal joint 261. The power assembly 27 includes a pulley 273, which is fixedly connected to the outside of the right transmission rod 22. When the right transmission rod 22 rotates, it drives the pulley 273 to rotate. The right end of the transmission rod 211 is fixedly connected to the pulley 271. When the pulley 271 rotates, it drives the transmission rod 211 to rotate. A transmission belt 272 is provided on the outside of the pulley 271. The pulley 271 is connected to the pulley 273 through the transmission belt 272. The linkage of pulley 271, belt pulley 273, and transmission belt 272 transmits power from right-side transmission rod 22 to transmission rod 211. Transmission gears 274 are rotatably connected to all four sides of the inner bottom of frame 1. Multiple transmission gears 274 on the rear side of the inner bottom of frame 1 are fixedly connected to transmission rod 211. When transmission rod 211 rotates, it drives the multiple transmission gears 274 on the rear side of the inner bottom of frame 1 to rotate synchronously. Transmission chains 276 are provided on both the left and right sides of the inner bottom of frame 1. Multiple transmission gears 274 on the same side of the inner bottom of frame 1 are connected via transmission chains 276. When the multiple transmission gears 274 on the rear side of the inner bottom of frame 1 rotate, they drive the multiple transmission gears 274 on the front side of the inner bottom of frame 1 to rotate. Each of the multiple transmission chains 276 has a conveyor roller 277 fixedly connected to one side. The excavated soil is conveyed to the collection box 210 at the rear of the device through the multiple conveyor rollers 277. During the conveying process, larger soil clods fall through the gaps between the multiple conveyor rollers 277, thus achieving a preliminary screening effect. A protective cover 275 is fixedly connected to the upper right side of the outer side of the frame 1 to prevent soil from entering the junction of the transmission belt 272 with the pulley 271 and the pulley 273 during operation, which would cause the device to jam and stop running. The positioning component 28 includes a drive gear 281, which is fixedly connected to the left end of the transmission rod 211. When the transmission rod 211 rotates, it drives the drive gear 281 to rotate. The outer side of the drive gear 281 is provided with There is a second transmission chain 282. The left and right sides of the inner middle of the frame 1 are rotatably connected to positioning blocks 284 to prevent the excavated soil pile from being too heavy and affecting the conveying. The outer side of the left positioning block 284 passes through the frame 1 and is fixedly connected to the driven gear 283. When the driven gear 283 rotates, it drives the left positioning block 284 to rotate synchronously. The driving gear 281 is connected to the driven gear 283 through the second transmission chain 282. The power is transmitted from the driving gear 281 to the driven gear 283 through the second transmission chain 282. The excavation assembly 38 includes an excavation cutter 381. The excavation cutter 381 is fixedly connected to the front side of the bottom of the inner side of the frame 1. The outer side of the excavation cutter 381 is fixedly connected to a protective sleeve 382 to prevent the metal surface of the cutter from damaging the medicinal materials. Specifically, the right-side transmission rod 22 drives the pulley 273 to rotate, which in turn drives the pulley 271 to rotate via the transmission belt 272, thereby driving the transmission rod 211 to rotate. The transmission rod 211 is linked with the transmission gear 274 and the transmission chain 276 at the bottom of the frame 1, causing all the conveying rollers 277 to operate synchronously. The excavated soil is conveyed backward by the rotation of the conveying rollers 277, and the soil clods are initially screened at the gaps between the rollers. The protective cover 275 covers the belt drive part to prevent soil from entering and affecting the transmission. To improve efficiency, transmission rod 211 drives drive gear 281 to rotate, which in turn drives driven gear 283 via transmission chain 282, causing positioning block 284 to rotate synchronously. Positioning block 284 applies auxiliary thrust to the soil pile during the conveying process to ensure smooth conveying. Excavating cutter 381 excavates soil at the bottom front end of frame 1. Its outer protective sleeve 382 prevents metal cutter from directly contacting medicinal materials to prevent damage. The excavated soil pile is conveyed backward by conveying roller 277 and enters collection box 210 after preliminary screening.

[0022] Working principle: The equipment is connected to a tractor, which provides power to the steering box 21. The steering box 21 distributes the power to the transmission rods 22 on the left and right sides, causing the two transmission rods 22 to rotate synchronously. The left transmission rod 22 drives the rotating block 23 to rotate. The rotating block 23 converts the rotational motion into the reciprocating linear motion of the push rod 25 through the rotating block 24. The push rod 25 pushes the collection box 210 to slide back and forth along the frame 1, so that the medicinal materials in the collection box 210 are separated from the soil under the action of vibration. At the same time, the transmission rod 211 rotates with the power output of the steering box 21, and drives the brush roller 291 to rotate in the opposite direction through the meshing of the driven gear 293 and the driving gear 292. The rotational motion of the brush roller 291 further removes the soil remaining on the surface of the medicinal materials to improve the screening effect. The fixed ring 212 constrains the movement trajectory of the push rod 25 to prevent it from deviating during operation and ensure the stable sliding of the collection box 210. When the tractor pulls the machine forward, the roller 36 rolls along the ground, supporting the movement of the entire device. When it is necessary to adjust the digging depth, the crank handle 372 is pulled out and rotated to drive the rotating rod 32 to rotate. The rotating rod 32 drives the transmission gear 33 to rotate. Through the meshing of the transmission gear 33 and the rack 35, the support column 34 is raised and lowered. The raising and lowering of the support column 34 changes the relative height between the frame 1 and the ground, thereby realizing the adjustment of the digging angle. After the adjustment is completed, the crank handle 372 is pushed back to its original position and locked into the groove of the fixing frame 31 to keep the rotating rod 32 in a fixed state, ensuring the stability of the height of the support column 34 during operation. During the movement, the roller 36 always keeps in contact with the ground to ensure the smooth movement of the entire machine.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for preventing breakage during the excavation of rhizomes and medicinal herbs, comprising a frame (1), characterized in that: A screening mechanism (2) is provided on the outside of the frame (1). The screening mechanism (2) is used to screen and separate the medicinal materials in the excavated soil pile. A moving mechanism (3) is provided on the rear side of the frame (1). The moving mechanism (3) is used to adjust the height of the device to change the digging angle to adapt to the digging of different kinds of medicinal materials. The screening mechanism (2) includes a steering box (21), which is fixedly connected to the top front of the frame (1). A transmission rod (22) is fixedly connected to the output ends on both the left and right sides of the steering box (21). A rotating block (23) is fixedly connected to the outer side of the left side of the transmission rod (22). A rotating block (24) is rotatably connected to the outer side of the rotating block (23). A push rod (25) is rotatably connected to the bottom of the rotating block (24). A collection box (210) is fixedly connected to the rear end of the push rod (25). The left and right sides of the collection box (210) are respectively connected to the inner side of the frame (1). The left and right sides of the frame (1) are slidably connected. A fixed ring (212) is fixedly connected to the lower left side of the frame (1). The push rod (25) is slidably connected to the inside of the fixed ring (212). A transmission rod (211) is rotatably connected to the upper rear end of the frame (1). The left and right ends of the transmission rod (211) pass through the frame (1). A transmission assembly (26) is provided on the front side of the steering box (21). A power assembly (27) is provided inside the frame (1). A positioning assembly (28) is provided in the middle left side of the frame (1). A soil removal assembly (29) is provided at the upper left side of the frame (1).

2. The rhizome-based medicinal herb digging and breakage prevention device according to claim 1, characterized in that: The moving mechanism (3) includes a fixed frame (31), which is fixedly connected to the rear side of the frame (1). The collection box (210) is slidably connected to the fixed frame (31). A rotating rod (32) is rotatably connected to the top of the fixed frame (31). A transmission gear (33) is fixedly connected to the left and right sides of the rotating rod (32). A support column (34) is slidably connected to the left and right sides of the inside of the fixed frame (31). A rack (35) is fixedly connected to the inside of the support column (34). The rack (35) meshes with the transmission gear (33). A roller (36) is rotatably connected to the outside of the support column (34). A hand crank assembly (37) is provided on the outside of the fixed frame (31). A digging assembly (38) is provided on the lower side of the front end of the frame (1).

3. The rhizome-based medicinal herb digging and breakage prevention device according to claim 1, characterized in that: The transmission assembly (26) includes a universal joint (261), which is fixedly connected to the input end of the steering box (21), and a rotating rod (262) is fixedly connected to the front side of the universal joint (261).

4. The rhizome-based medicinal herb digging and breakage prevention device according to claim 1, characterized in that: The power assembly (27) includes a second pulley (273), which is fixedly connected to the outside of the right transmission rod (22). The right end of the transmission rod (211) is fixedly connected to a first pulley (271). A transmission belt (272) is provided on the outside of the first pulley (271). The first pulley (271) is connected to the second pulley (273) via the transmission belt (272). A transmission gear (274) is rotatably connected to the bottom of the frame (1). Multiple transmission gears (274) are fixedly connected to transmission rods (211) on the rear side of the bottom of the frame (1). Transmission chains (276) are provided on the left and right sides of the bottom of the frame (1). Multiple transmission gears (274) on the same side of the frame (1) are connected by transmission chains (276). Conveying rollers (277) are fixedly connected to adjacent sides of two transmission chains (276). A protective cover (275) is fixedly connected to the upper right side of the outer side of the frame (1).

5. The rhizome and stem herb digging and breakage prevention device according to claim 1, characterized in that: The positioning component (28) includes a drive gear (281), which is fixedly connected to the left end of the transmission rod (211). A transmission chain (282) is provided on the outside of the drive gear (281). Positioning blocks (284) are rotatably connected to the left and right sides of the inner middle of the frame (1). The outer side of the positioning block (284) on the left side passes through the frame (1) and is fixedly connected to a driven gear (283). The drive gear (281) is connected to the driven gear (283) through the transmission chain (282).

6. The rhizome-based medicinal herb digging and breakage prevention device according to claim 1, characterized in that: The soil removal assembly (29) includes a brush roller (291), which is rotatably connected to the top rear side of the frame (1). The left end of the brush roller (291) passes through the frame (1) and is fixedly connected to a second drive gear (292). The outer side of the left end of the transmission rod (211) is fixedly connected to a second driven gear (293). The second drive gear (292) and the second driven gear (293) are meshed together.

7. The rhizome-based medicinal herb digging and breakage prevention device according to claim 2, characterized in that: The hand crank assembly (37) includes a fixed block (371), which is rotatably connected to the right side of the fixed frame (31). The left end of the fixed block (371) passes through the fixed frame (31) and is slidably connected to the rotating rod (32). A crank handle (372) is slidably connected inside the right side of the fixed block (371).

8. The rhizome and stem herb digging and breakage prevention device according to claim 2, characterized in that: The excavation assembly (38) includes an excavation cutter (381), which is fixedly connected to the front side of the bottom inside the frame (1), and a protective sleeve (382) is fixedly connected to the outside of the excavation cutter (381).

Images