A film coating device for planting traditional Chinese medicinal materials

Abstract

The application discloses a film covering device for planting traditional Chinese medicinal materials and relates to the technical field of traditional Chinese medicinal material planting. The outer wall of the film breaking mechanism is rotationally connected with a spraying mechanism, the top of the spraying mechanism is slidably connected with the top of a moving rack, and the water output of the spraying mechanism is synchronously adjusted during adjustment of the four taper head rods. When the taper head rods of the film breaking mechanism are adjusted in extension and retraction, the connecting frame drives the arc-shaped plate to move synchronously, the arc-shaped plate and the arc-shaped bent plate of the spraying mechanism are pushed and matched, automatic synchronous adjustment of the water output of the spraying mechanism is realized, the water output is correspondingly increased when the interval distance of the film breaking holes is wide, the water output is synchronously reduced when the interval distance of the film breaking holes is narrow, the water output is adaptively changed according to the density of the traditional Chinese medicinal material planting, and the survival rate of the traditional Chinese medicinal material planting is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of Chinese medicinal herb cultivation technology, specifically a mulching device for Chinese medicinal herb cultivation. Background Technology

[0002] In the process of planting Chinese medicinal herbs, mulching is a key agronomic technique to improve the survival rate of planting and ensure the quality of medicinal herbs. Mulching can not only achieve the effects of moisture retention, temperature increase and weed suppression, but also reduce the loss of soil nutrients. It is especially suitable for the needs of exposed planting of rhizome Chinese medicinal herbs. Existing film covering devices can only complete simple film breaking and covering operations. After breaking the film, they cannot simultaneously and adaptively water the film holes. After the seedlings are planted, the roots are prone to contact with dry soil, which leads to dehydration and reduced survival rate. Subsequently, manual watering of the film holes is required, which increases labor intensity.

[0003] To address the aforementioned problems, the inventors have proposed a mulching device for the cultivation of Chinese medicinal herbs. Summary of the Invention

[0004] To address the problem that existing mulching devices can only perform simple film breaking and mulching operations, and cannot simultaneously and adaptively water the film holes after film breaking; the purpose of this invention is to provide a mulching device for the cultivation of Chinese medicinal herbs.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a mulching device for planting Chinese medicinal herbs, comprising a mobile frame for moving on the field, a roller for conveying film being rotatably connected between the two sides of the mobile frame, and a rolling structure being provided on the mobile frame for rolling the film after it has been conveyed by the roller. An adjustment mechanism is provided between the two sides of the mobile frame. Four film-breaking mechanisms are equidistantly connected along the transverse axis of the adjustment mechanism. The film-breaking mechanisms break the film after it has been rolled by the pressing roller and the soil conveying roller. The adjustment mechanism adjusts the spacing between the four film-breaking mechanisms. The mobile frame is equipped with an oil pump hydraulic mechanism, which is connected to the film breaking mechanism via an adjustment mechanism. The membrane breaking mechanism includes eight conical rods for membrane breaking. Through hydraulic control of the oil pump hydraulic mechanism, four of the conical rods are telescopically moved to adjust the membrane breaking spacing of the conical rods. A spraying mechanism is rotatably connected to the outer wall of the membrane breaking mechanism. The top of the spraying mechanism is slidably connected to the top of the movable frame. The membrane breaking mechanism and the spraying mechanism work together in a coordinated manner. During the adjustment of the four conical rods, the water output of the spraying mechanism is adjusted synchronously.

[0006] Preferably, the rolling structure includes two pressing rollers for rolling the film and a soil conveying roller for covering the film with soil. The outer wall of the soil conveying roller has several slots. The two pressing rollers are rotatably connected to both sides of the movable frame, and the soil conveying roller is rotatably connected between the inner walls of both sides of the movable frame. The roller shaft, pressing rollers and soil conveying roller are arranged sequentially on the movable frame. Two wheels are rotatably connected to one end of the mobile frame. A cutting plate is fixedly connected to the outer wall of the mobile frame, and an arc-shaped bulldozing plate is fixedly connected to the outer wall of the mobile frame and is located outside the soil conveying drum wheel.

[0007] Preferably, the adjustment mechanism includes a servo motor for providing adjustment power. The servo motor is mounted on the outer wall of the moving frame. A bidirectional screw is connected to the output shaft of the servo motor. The two ends of the bidirectional screw are rotatably connected to the two ends of the moving frame. Two sets of threads are provided on the outer wall of the bidirectional screw, and the two sets of threads are symmetrically arranged on the outer wall of the bidirectional screw. The two ends of the bidirectional screw are threadedly connected to a moving frame. A sliding rail is provided on the top of the moving frame, and the moving frame is slidably connected to the sliding rail.

[0008] Preferably, the membrane breaking mechanism further includes an annular wheel and a central connecting frame. The outer wall of the central connecting frame is fixedly connected to the annular wheel, and the middle parts of the two central connecting frames are rotatably connected to two movable frames respectively. The outer wall of the annular wheel is provided with eight rectangular holes for the conical rod to pass through. The central connecting frame has four oil chambers for sliding of the conical rods. The four oil chambers are interconnected. One end of each of the four conical rods is slidably connected to the inside of the oil chambers, and one end of the remaining four conical rods is fixedly connected to the outer wall of the central connecting frame. The two ends of the head of each conical rod are conical. The bottom of the movable frame is connected to the oil chambers inside the central connecting frame.

[0009] Preferably, each of the four conical rods is fixedly connected to a connecting frame on its outer wall. The connecting frame is slidably connected to the outer wall of the central connecting frame. One end of the central connecting frame is provided with a protruding ring, and a first spring is provided between the connecting frame and the protruding ring.

[0010] Preferably, the central connecting frame is provided with a through hole for the bidirectional screw to pass through. The central connecting frame is rotatably connected to the outer wall of the bidirectional screw. The four central connecting frames slide relative to each other on the outer wall of the bidirectional screw. A second spring is connected between every two central connecting frames. A series hose is connected between every two central connecting frames. The series hose is connected to the interior of the oil chamber. The series hose is made of a soft material.

[0011] Preferably, the hydraulic pump mechanism includes a hydraulic pump and an oil line hose. The hydraulic pump is fixedly connected to the top of the mobile frame, one end of the oil line hose is connected to the output end of the hydraulic pump, and the other end of the oil line hose is connected to the mobile frame.

[0012] Preferably, an arc-shaped plate is fixedly connected to the outer wall of each of the four connecting frames, the four arc-shaped plates are close to each other, and the arc-shaped plates drive the spraying mechanism.

[0013] Preferably, the spraying mechanism includes a water tank, which is fixedly connected to the top of the mobile frame. Four flexible water pipes are connected to the bottom outer wall of the water tank. The flexible water pipes are designed as extendable hoses. One end of each of the four flexible water pipes is connected to a rigid plastic pipe. A slider is fixedly connected to the outer wall of the rigid plastic pipe. A guide rail is provided at the top of the mobile frame. The slider is slidably connected to the inner wall of the guide rail. A pump housing is connected to the bottom of the slider. An annular groove is provided on the outer wall of the annular wheel. The pump housing is slidably connected to the outer wall of the annular groove. A water outlet groove is provided at the bottom of the pump housing.

[0014] Preferably, a conical ring is fixedly connected to the inner wall of the pump housing, and a sliding rod is slidably connected to the pump housing. The bottom of the plastic rigid tube is connected to the top of the conical ring. One end of the sliding rod is conical, and its conical surface fits into the inner wall of the conical ring. A gap is left between the conical end of the sliding rod and the inner wall of the pump housing. An arc-shaped bending plate is fixedly connected to one end of the sliding rod. The arc-shaped bending plate and the arc plate are pushed together. A third spring is provided between the arc-shaped bending plate and the pump housing. The third spring is sleeved on the outer wall of the plastic rigid tube.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the conical rod of the film-breaking mechanism of the present invention is extended and retracted, the connecting frame drives the arc plate to move synchronously. Through the pushing cooperation between the arc plate and the arc-shaped curved plate of the spray mechanism, the water output of the spray mechanism is automatically and synchronously adjusted. When the distance between the film-breaking holes is wide, the water output increases accordingly, and when the distance between the film-breaking holes is narrow, the water output decreases synchronously. Thus, the water output is adaptively changed according to the density of the Chinese medicinal materials planting, effectively improving the survival rate of Chinese medicinal materials planting.

[0016] 2. This invention uses a servo motor and a bidirectional screw drive to synchronously adjust the lateral spacing of the four film-breaking mechanisms. Combined with the hydraulic mechanism of the oil pump to control the extension and retraction of the conical rod inside the film-breaking mechanism, it achieves multi-dimensional adjustment of the lateral and longitudinal spacing and aperture of the film-breaking mechanism. It can adapt to the planting needs of different varieties of Chinese medicinal materials without replacing the film-breaking parts, which greatly improves the versatility of the device and reduces the investment cost of planting equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the rolling structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the hydraulic mechanism of the oil pump and the film-breaking mechanism of the present invention.

[0021] Figure 4 This is a schematic diagram of the membrane breaking mechanism of the present invention.

[0022] Figure 5 For the present invention Figure 4 A schematic diagram of the structure at point B.

[0023] Figure 6 This is a schematic diagram of the central connecting frame and the conical rod structure of the present invention.

[0024] Figure 7 This is a schematic diagram of the membrane breaking mechanism and adjustment mechanism of the present invention.

[0025] Figure 8 This is a schematic diagram of the second spring and series hose structure of the present invention.

[0026] Figure 9 For the present invention Figure 8 A schematic diagram of the structure at point A in the middle.

[0027] Figure 10 This is a schematic diagram of the spraying mechanism of the present invention.

[0028] In the diagram: 1. Moving frame; 11. Roller; 12. Wheel; 13. Pressing roller; 14. Soil cutting plate; 15. Soil conveying cylinder wheel; 16. Arc-shaped bulldozer plate; 17. Sliding trough rail; 18. Guide rail; 2. Film breaking mechanism; 21. Annular wheel; 210. Rectangular hole; 211. Annular groove; 22. Central connecting frame; 220. Oil chamber; 23. Conical rod; 24. First spring; 25. Connecting frame; 26. Arc-shaped plate; 3. Adjustment mechanism; 31. Servo motor; 32. Bidirectional screw; 33. Moving frame; 4. Oil pump hydraulic mechanism; 41. Hydraulic pump; 42. Oil circuit hose; 5. Spraying mechanism; 51. Pump housing; 510. Water outlet tank; 52. Plastic rigid pipe; 53. Conical ring; 54. Water tank; 55. Soft water pipe; 56. Arc-shaped bend plate; 57. Third spring; 58. Sliding rod; 6. Slider; 7. Second spring; 8. Series hose. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figure 1 - Figure 10 As shown, the present invention provides a mulching device for planting Chinese medicinal herbs, including a mobile frame 1 for moving on the field, a roller 11 for conveying film rotatably connected between the two sides of the mobile frame 1, and a rolling structure provided on the mobile frame 1 for rolling the film conveyed by the roller 11. An adjustment mechanism 3 is provided between the two sides of the mobile frame 1. Four film breaking mechanisms 2 are equidistantly connected along the transverse axis of the adjustment mechanism 3. The film breaking mechanism 2 breaks the film after it has been rolled by the film pressing wheel 13 and the soil conveying roller 15. The adjustment mechanism 3 adjusts the spacing between the four film breaking mechanisms 2. The mobile frame 1 is equipped with an oil pump hydraulic mechanism 4, which is connected to the film breaking mechanism 2 via an adjustment mechanism 3. The film breaking mechanism 2 includes eight conical rods 23 for film breaking. Through the hydraulic control of the oil pump hydraulic mechanism 4, four of the conical rods 23 are telescopically moved to adjust the film breaking spacing of the conical rods 23. A spraying mechanism 5 is rotatably connected to the outer wall of the film breaking mechanism 2. The top of the spraying mechanism 5 is slidably connected to the top of the movable frame 1. The film breaking mechanism 2 and the spraying mechanism 5 work together in a coordinated manner. During the adjustment of the four cone rods 23, the water output of the spraying mechanism 5 is adjusted synchronously.

[0031] The rolling structure includes two pressing rollers 13 for rolling the film and a soil conveying roller 15 for covering the film with soil. The outer wall of the soil conveying roller 15 is provided with several slots. The two pressing rollers 13 are rotatably connected to both sides of the mobile frame 1, and the soil conveying roller 15 is rotatably connected between the inner walls of both sides of the mobile frame 1. The roller 11, pressing rollers 13 and soil conveying roller 15 are arranged sequentially on the mobile frame 1. Two wheels 12 are rotatably connected to one end of the mobile frame 1. A cutting plate 14 is fixedly connected to the outer wall of the mobile frame 1. An arc-shaped bulldozing plate 16 is fixedly connected to the outer wall of the mobile frame 1 and is located outside the soil conveying drum wheel 15. The purpose of this setup is to allow the mobile frame 1 to travel on the field ridges via its wheels 12, with the rollers 11 moving along with the mobile frame 1. One end of the film covers the soil, enabling continuous film transport. The transported film first passes through the pressing rollers 13 on both sides, which roll the film to initially adhere it to the surface of the field ridge. Subsequently, the film passes through the soil conveying roller 15. During the movement of the mobile frame 1, the cutting plate 14 first cuts and arranges the soil on both sides of the field ridge, and the arc-shaped pushing plate 16 pushes the soil to the soil conveying roller 15. As the soil conveying roller 15 rotates, it evenly and intermittently covers the film with soil through the grooves on its outer wall, completing the soil covering and shaping of the film and preventing the film from curling up at the edges.

[0032] The adjustment mechanism 3 includes a servo motor 31 for providing adjustment power. The servo motor 31 is mounted on the outer wall of the movable frame 1. A bidirectional screw 32 is connected to the output shaft of the servo motor 31. The two ends of the bidirectional screw 32 are rotatably connected to the two ends of the movable frame 1. Two sets of threads are provided on the outer wall of the bidirectional screw 32. The two sets of threads are symmetrically arranged on the outer wall of the bidirectional screw 32. The two ends of the bidirectional screw 32 are threadedly connected to a movable frame 33. A sliding rail 17 is provided on the top of the movable frame 1. The movable frame 33 is slidably connected to the sliding rail 17. The purpose of this setup is to start the servo motor 31, which drives the bidirectional screw 32 to rotate. The two sets of symmetrical threads on the outer wall of the bidirectional screw 32 drive the moving frames 33 at both ends to slide in opposite directions or away from each other along the sliding groove rail 17.

[0033] The membrane breaking mechanism 2 also includes an annular wheel 21 and a central connecting frame 22. The outer wall of the central connecting frame 22 is fixedly connected to the annular wheel 21. The middle part of the two central connecting frames 22 is rotatably connected to the two movable frames 33 respectively. The outer wall of the annular wheel 21 is provided with eight rectangular holes 210 for the conical rod 23 to pass through. The central connecting frame 22 has four oil chambers 220 for sliding of the conical rods 23. The four oil chambers 220 are interconnected. One end of each of the four conical rods 23 is slidably connected to the inside of the oil chambers 220, and one end of the remaining four conical rods 23 is fixedly connected to the outer wall of the central connecting frame 22. The two ends of the head of the conical rods 23 are respectively set as conical. The bottom of the moving frame 33 is connected to the oil chambers 220 inside the central connecting frame 22. The purpose of this design is that when the conical rod 23 extends, it cooperates with the fixed conical rod 23 to reduce the longitudinal spacing of the membrane rupture. As the conical rod 23 gradually extends, one end of the conical rod 23 gradually ruptures the membrane. During this process, the head end of the conical rod 23 is conical. The size of the subsequent membrane rupture is adjusted according to the different extension lengths of the conical rod 23. When the conical rod 23 retracts, it increases the longitudinal spacing of the membrane breaking, and the four oil chambers 220 are interconnected, allowing the sliding ends of multiple conical rods 23 to be pressed and moved simultaneously, maintaining consistent movement.

[0034] Connecting frames 25 are fixedly connected to the outer walls of the four conical rods 23 respectively. The connecting frames 25 are slidably connected to the outer wall of the central connecting frame 22. A protruding ring is provided at one end of the central connecting frame 22. A first spring 24 is provided between the connecting frame 25 and the protruding ring. The purpose of this design is that the first spring 24 can automatically reset the cone rod 23 when the hydraulic pressure is released, thus avoiding jamming. When pressure is present, the first spring 24 is compressed between the connecting frame 25 and the convex ring.

[0035] The center connecting frame 22 has a through hole in the middle for the bidirectional screw 32 to pass through. The center connecting frame 22 is rotatably connected to the outer wall of the bidirectional screw 32. The four center connecting frames 22 slide relative to each other on the outer wall of the bidirectional screw 32. A second spring 7 is connected between every two center connecting frames 22. A series hose 8 is connected between every two center connecting frames 22. The series hose 8 is connected to the inside of the oil chamber 220. The series hose 8 is made of soft material. The purpose of this setup is that the two moving frames 33 drive the central connecting frame 22 to move synchronously, while the central connecting frames 22 achieve equidistant linkage through the elastic support of the second spring 7, and the spacing between the two-way screws 32 is adjusted by sliding between them, thereby completing the flexible adjustment of the overall lateral spacing of the four film breaking mechanisms 2 to adapt to the planting spacing requirements of different Chinese medicinal materials. The four central connecting frames 22 are connected by series hoses 8 to ensure that all cone rods 23 extend and retract synchronously and break the film evenly.

[0036] The hydraulic pump mechanism 4 includes a hydraulic pump 41 and an oil hose 42. The hydraulic pump 41 is fixedly connected to the top of the mobile frame 1. One end of the oil hose 42 is connected to the output end of the hydraulic pump 41, and the other end of the oil hose 42 is connected to the mobile frame 33. The purpose of this setup is to start the hydraulic pump 41, which then delivers hydraulic oil to the movable frame 33 via the oil hose 42 and into the oil chamber 220 of the central connecting frame 22 to achieve hydraulic pressure.

[0037] Arc-shaped plates 26 are fixedly connected to the outer walls of the four connecting frames 25 respectively. The four arc-shaped plates 26 are close to each other and drive the spraying mechanism 5. The close proximity is to ensure that the spraying mechanism 5 is continuously pushed by the four arc-shaped plates 26 as the central connecting frame 22 rotates.

[0038] The spraying mechanism 5 includes a water tank 54, which is fixedly connected to the top of the mobile frame 1. Four flexible water pipes 55 are connected to the bottom outer wall of the water tank 54. The flexible water pipes 55 are set as telescopic hoses. One end of each of the four flexible water pipes 55 is connected to a plastic rigid pipe 52. A slider 6 is fixedly connected to the outer wall of the plastic rigid pipe 52. A guide rail 18 is provided on the top of the mobile frame 1. The slider 6 is slidably connected to the inner wall of the guide rail 18. The bottom of the slider 6 is connected to a pump housing 51. An annular groove 211 is provided on the outer wall of the annular wheel 21. The pump housing 51 is slidably connected to the outer wall of the annular groove 211. A water outlet groove 510 is opened at the bottom of the pump housing 51. The purpose of this setting is that when the lateral spacing of the membrane breaking mechanism 2 is adjusted, the slider 6 slides synchronously along the guide rail 18 of the moving frame 1. The soft water pipe 55 adopts a telescopic structure to ensure that the water path between the water tank 54 and the plastic hard pipe 52 is uninterrupted. The water in the water tank 54 flows out from the annular groove 211 under the action of gravity through the soft water pipe 55 and the plastic hard pipe 52 to water the broken hole.

[0039] A conical ring 53 is fixedly connected to the inner wall of the pump housing 51. A sliding rod 58 is slidably connected to the pump housing 51. The bottom of the plastic rigid tube 52 is connected to the top of the conical ring 53. One end of the sliding rod 58 is set as conical, and its conical surface fits with the inner wall of the conical ring 53. A gap is left between the conical end of the sliding rod 58 and the inner wall of the pump housing 51. An arc-shaped bent plate 56 is fixedly connected to one end of the sliding rod 58. The arc-shaped bent plate 56 and the arc plate 26 are pushed together. A third spring 57 is provided between the arc-shaped bent plate 56 and the pump housing 51. The third spring 57 is sleeved on the outer wall of the plastic rigid tube 52. The third spring 57 is used for the arc-shaped bent plate 56 and the sliding rod 58. When the four conical rods 23 drive the arc plate 26 to extend and retract, the tension is reset. The purpose of this arrangement is that when four of the conical rods 23 extend or retract, the remaining four conical rods 23 rupture, increasing the spacing between the membrane holes. This causes the connecting frame 25 on the outer wall to move synchronously. The connecting frame 25 then causes the arc-shaped plate 26 to extend or retract accordingly. The arc-shaped plate 26 and the arc-shaped bent plate 56 fit together. The arc-shaped bent plate 56 causes the sliding rod 58 to slide along the inner wall of the pump housing 51. The gap between the conical end of the sliding rod 58 and the conical ring 53 inside the pump housing 51 increases. Water flowing from the plastic rigid pipe 52 into the pump housing 51 passes through this gap, and the flow rate dynamically increases with the change in the gap. When the conical rod 23 extends, the eight conical rods 23 break through the holes, the distance between the membrane holes decreases, and the conical rod 23 drives the arc plate 26 to push the arc plate 56 through the connecting frame 25. The gap between the conical end of the sliding rod 58 and the conical ring 53 in the pump housing 51 decreases, and the water in the water tank 54 flows out from the gap through the soft water pipe 55 and the plastic hard pipe 52 under the action of gravity. When water flow is not required, the gap can be closed by hydraulic linkage, and water flows through the outlet tank 510 to the membrane pores, and the water output decreases simultaneously.

[0040] Working principle: The device travels on the field ridges via the wheels 12 of the mobile frame 1. The roller 11 moves with the mobile frame 1, and one end of the film covers the soil, realizing continuous film conveying. The conveyed film first passes through the pressing rollers 13 on both sides, which roll the film to make it initially adhere to the surface of the field ridge. Then the film passes through the soil conveying roller 15. During the movement of the mobile frame 1, the cutting plate 14 first cuts and sorts the soil on both sides of the field ridge, and the arc-shaped pushing plate 16 pushes the soil to the soil conveying roller 15. During the rotation of the soil conveying roller 15, the soil is evenly and intermittently covered on the film through the grooves on the outer wall.

[0041] Start the servo motor 31, which drives the bidirectional screw 32 to rotate. The two sets of symmetrical threads on the outer wall of the bidirectional screw 32 drive the moving frames 33 at both ends to slide in opposite directions or away from each other along the sliding groove rail 17. The moving frames 33 drive the film breaking mechanism 2 connected to them to move synchronously. At the same time, the four film breaking mechanisms 2 are linked at equal distances through the elastic support of the second spring 7.

[0042] Start the hydraulic pump 41. The hydraulic pump 41 delivers hydraulic oil to the movable frame 33 through the oil line hose 42 and enters the oil chamber 220 of the central connecting frame 22. The pressure change of the hydraulic oil in the oil chamber 220 drives the four movable cone rods 23 to extend and retract along the oil chamber 220. When the conical rod 23 extends, it cooperates with the fixed conical rod 23 to reduce the longitudinal spacing of the membrane. As the conical rod 23 gradually extends, one end of the conical rod 23 gradually perforates the membrane. During this process, the head end of the conical rod 23 is conical. The size of the subsequent membrane perforation is adjusted according to the different extension lengths of the conical rod 23. When the conical rod 23 retracts, it increases the longitudinal spacing of the membrane breaking, and the four oil chambers 220 are interconnected, and the four central connecting frames 22 are connected by a series hose 8 to ensure that all conical rods 23 extend and retract synchronously and the membrane breaking is uniform. The first spring 24 can drive the conical rod 23 to automatically reset when the hydraulic pressure is released to avoid jamming.

[0043] The mobile frame 1 moves continuously, and the annular wheel 21 rolls on the surface of the film as the mobile frame 1 moves. The annular wheel 21 drives the central connecting frame 22 to rotate synchronously. The cone-shaped rod 23, which has been adjusted to the correct position, rotates with the annular wheel 21 and continuously breaks the film after it has been pressed and covered with soil through the cone-shaped head.

[0044] When four of the conical rods 23 extend or retract, the remaining four conical rods 23 rupture, increasing the spacing between the membrane holes. This causes the connecting frame 25 on the outer wall to move synchronously. The connecting frame 25 then causes the arc-shaped plate 26 to extend or retract accordingly. The arc-shaped plate 26 and the arc-shaped bent plate 56 push against each other, and the arc-shaped bent plate 56 causes the sliding rod 58 to slide along the inner wall of the pump housing 51. The gap between the conical end of the sliding rod 58 and the conical ring 53 inside the pump housing 51 increases. Water flowing from the plastic rigid pipe 52 into the pump housing 51 passes through this gap, and the flow rate of water dynamically increases with the change of the gap. When the four conical rods 23 extend, all eight conical rods 23 puncture, reducing the membrane pore spacing, and combining Figure 6 and Figure 10 As shown, the conical rod 23 drives the arc plate 26 to push the arc-shaped bent plate 56 through the connecting frame 25. The gap between the conical end of the sliding rod 58 and the conical ring 53 in the pump housing 51 is reduced. The water in the water tank 54 flows out through the gap through the soft water pipe 55 and the plastic hard pipe 52 under the action of gravity, and finally flows from the water outlet 510 to the membrane hole. When water flow is not required, the gap can be closed by hydraulic linkage, and water flows through the outlet tank 510 to the membrane pores, and the water output decreases simultaneously. After the watering and mulching work is completed and water flow is no longer needed, the gap can be closed by hydraulic linkage, thereby interrupting the water flow.

[0045] When the lateral spacing of the film breaking mechanism 2 is adjusted, the slider 6 slides synchronously along the guide rail 18 of the moving frame 1. The soft water pipe 55 adopts a telescopic structure to ensure that the water path between the water tank 54 and the plastic hard pipe 52 is uninterrupted, so as to realize the lateral follow-up of the spraying mechanism 5 and the film breaking mechanism 2 and ensure that there is no leakage at each film hole.

[0046] All standard mechanical parts used in this invention can be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific mechanical connection methods for each part can employ conventional methods such as bolts, rivets, and welding, which are already well-established in the prior art. The motor involved in this invention uses conventional circuit topologies and control principles found in the prior art. The corresponding circuit models and operating logic are clearly understood and skillfully applied by those skilled in the art, and will not be detailed here.

[0047] The standard mechanical parts used in this invention, including but not limited to fasteners, guide rails, motors, and hydraulic pumps, are all commercially available standard products known in the relevant technical field and can be directly purchased from market channels. The hydraulic pumps and their hydraulic circuits adopt existing conventional hydraulic pump models and principles. Irregularly shaped parts can be custom-made according to the structural description in this specification and drawings.

[0048] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A mulching device for planting Chinese medicinal herbs, comprising a mobile frame (1) for moving across the field, characterized in that: A roller (11) for conveying film is rotatably connected between the two sides of the mobile frame (1). A rolling structure is provided on the mobile frame (1) for rolling the film after it has been conveyed by the roller (11). An adjustment mechanism (3) is provided between the two sides of the mobile frame (1). Four film breaking mechanisms (2) are equidistantly connected along the transverse axis of the adjustment mechanism (3). The film breaking mechanism (2) breaks the film after it has been rolled by the pressing roller (13) and the soil conveying roller (15). The adjustment mechanism (3) adjusts the spacing between the four film breaking mechanisms (2). The mobile frame (1) is equipped with an oil pump hydraulic mechanism (4), which is connected to the film breaking mechanism (2) via an adjustment mechanism (3). The membrane breaking mechanism (2) includes eight conical rods (23) for membrane breaking. Through the hydraulic control of the oil pump hydraulic mechanism (4), four of the conical rods (23) are telescopically moved to adjust the membrane breaking distance of the conical rods (23). The outer wall of the membrane breaking mechanism (2) is rotatably connected to the spraying mechanism (5), and the top of the spraying mechanism (5) is slidably connected to the top of the movable frame (1). The membrane breaking mechanism (2) and the spraying mechanism (5) work together in a coordinated manner. During the adjustment of the four cone rods (23), the water output of the spraying mechanism (5) is adjusted synchronously. The membrane breaking mechanism (2) also includes an annular wheel (21) and a central connecting frame (22). The outer wall of the central connecting frame (22) is fixedly connected to the annular wheel (21). The middle parts of the two central connecting frames (22) are respectively rotatably connected to two movable frames (33). The outer wall of the annular wheel (21) is provided with eight rectangular holes (210) for the conical rod (23) to pass through. Connecting frames (25) are fixedly connected to the outer walls of the four conical rods (23). The connecting frames (25) are slidably connected to the outer wall of the central connecting frame (22). A protruding ring is provided at one end of the central connecting frame (22). A first spring (24) is provided between the connecting frame (25) and the protruding ring. Arc-shaped plates (26) are fixedly connected to the outer walls of the four connecting frames (25), the four arc-shaped plates (26) are close to each other, and the arc-shaped plates (26) drive the spraying mechanism (5); The spraying mechanism (5) includes a water tank (54), which is fixedly connected to the top of the mobile frame (1). Four soft water pipes (55) are connected to the bottom outer wall of the water tank (54). The soft water pipes (55) are configured as retractable hoses. One end of each of the four soft water pipes (55) is connected to a plastic hard pipe (52). A slider (6) is fixedly connected to the outer wall of the plastic hard pipe (52). A guide rail (18) is provided at the top of the mobile frame (1). The slider (6) is slidably connected to the inner wall of the guide rail (18). The bottom of the slider (6) is connected to a pump housing (51). An annular groove (211) is provided on the outer wall of the annular wheel (21). The pump housing (51) is slidably connected to the outer wall of the annular groove (211). A water outlet groove (510) is opened at the bottom of the pump housing (51). A conical ring (53) is fixedly connected to the inner wall of the pump housing (51). A sliding rod (58) is slidably connected to the pump housing (51). The bottom of the plastic rigid tube (52) is connected to the top of the conical ring (53). One end of the sliding rod (58) is set as a cone, and its conical surface fits with the inner wall of the conical ring (53). The conical end of the sliding rod (58) leaves a gap with the inner wall of the pump housing (51). One end of the sliding rod (58) is fixedly connected to an arc-shaped bending plate (56). The arc-shaped bending plate (56) and the arc plate (26) are pushed together. A third spring (57) is provided between the arc-shaped bending plate (56) and the pump housing (51). The third spring (57) is sleeved on the outer wall of the plastic rigid tube (52).

2. The mulching device for planting Chinese medicinal herbs as described in claim 1, characterized in that, The rolling structure includes two pressing rollers (13) for rolling the film and a soil conveying roller (15) for covering the film with soil. The outer wall of the soil conveying roller (15) is provided with several slots. The two pressing rollers (13) are rotatably connected to both sides of the mobile frame (1). The soil conveying roller (15) is rotatably connected between the inner walls of both sides of the mobile frame (1). The roller (11), pressing roller (13) and soil conveying roller (15) are arranged sequentially on the mobile frame (1). Two wheels (12) are rotatably connected to one end of the mobile frame (1). A cutting plate (14) is fixedly connected to the outer wall of the mobile frame (1). An arc-shaped bulldozing plate (16) is fixedly connected to the outer wall of the mobile frame (1) and is located outside the soil conveying drum wheel (15).

3. The mulching device for planting Chinese medicinal herbs as described in claim 1, characterized in that, The adjustment mechanism (3) includes a servo motor (31) for providing adjustment power. The servo motor (31) is mounted on the outer wall of the mobile frame (1). A bidirectional screw (32) is connected to the output shaft of the servo motor (31). The two ends of the bidirectional screw (32) are rotatably connected to the two ends of the mobile frame (1). Two sets of threads are provided on the outer wall of the bidirectional screw (32). The two sets of threads are symmetrically arranged on the outer wall of the bidirectional screw (32). The two ends of the bidirectional screw (32) are threadedly connected to a mobile frame (33). A sliding rail (17) is provided on the top of the mobile frame (1). The mobile frame (33) is slidably connected to the sliding rail (17).

4. A mulching device for planting Chinese medicinal herbs as described in claim 3, characterized in that, The central connecting frame (22) has four oil chambers (220) for sliding of the conical rods (23). The four oil chambers (220) are interconnected. One end of each of the four conical rods (23) is slidably connected to the inside of the oil chambers (220), and one end of the remaining four conical rods (23) is fixedly connected to the outer wall of the central connecting frame (22). The two ends of the head of each conical rod (23) are respectively set as conical. The bottom of the moving frame (33) is connected to the oil chambers (220) inside the central connecting frame (22).

5. A mulching device for planting Chinese medicinal herbs as described in claim 4, characterized in that, The central connecting frame (22) is provided with a through hole in the middle for the bidirectional screw (32) to pass through. The central connecting frame (22) is rotatably connected to the outer wall of the bidirectional screw (32). The four central connecting frames (22) slide relative to each other on the outer wall of the bidirectional screw (32). A second spring (7) is connected between every two central connecting frames (22). A series hose (8) is connected between every two central connecting frames (22). The series hose (8) is connected to the interior of the oil cavity (220). The series hose (8) is made of soft material.

6. A mulching device for planting Chinese medicinal herbs as described in claim 3, characterized in that, The hydraulic pump mechanism (4) includes a hydraulic pump (41) and an oil hose (42). The hydraulic pump (41) is fixedly connected to the top of the mobile frame (1). One end of the oil hose (42) is connected to the output end of the hydraulic pump (41), and the other end of the oil hose (42) is connected to the mobile frame (33).

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