A non-powered film mulching and soil covering machine

Abstract

The application belongs to the technical field of agricultural seeding equipment, and particularly relates to a non-powered film covering and soil covering machine, which comprises a frame, a film covering device and a soil covering device. The film covering device comprises a film pressing roller and a pressing wheel. A large front arm is rotatably arranged on one side of the frame. The bottom end of the large front arm is sequentially provided with the pressing wheel and the film pressing roller. The distal end of the large front arm is provided with a small front arm for mounting a film roll. The soil covering device comprises two conveying belts arranged on the bottom side of the frame. A V-shaped hopper is arranged between the two conveying belts. A plurality of round holes are formed in the bottom side of the V-shaped hopper. A plough is arranged on the bottom side of the frame. The plough is annularly arranged on the outside of the bottom end of the conveying belt. The film covering and soil covering can be simultaneously realized through two simple actions of a foot pedal, a foot crank, a foot pedal and a pull bolt. The film covering and soil covering machine can save energy, protect the environment, reduce costs and reduce labor.

Description

Technical Field

[0001] This invention belongs to the field of agricultural sowing equipment technology, and in particular relates to a non-powered mulching and soil covering machine. Background Technology

[0002] Agricultural mulching and soil covering technology is an important field management method in modern agriculture, widely used in areas such as moisture retention, weed suppression, soil temperature regulation, and crop growth promotion. Traditional mulching and soil covering operations mainly rely on manual labor or powered machinery. While manual mulching is flexible, it is inefficient, labor-intensive, and struggles to ensure uniform mulching and soil compaction, especially in large-scale planting where it fails to meet production demands. Existing powered mulching machines mostly rely on fuel engines or electric motors, which, while improving efficiency, also have significant drawbacks: firstly, they consume a lot of energy and have high operating costs, which is inconsistent with the trend of low-carbon agriculture; secondly, the power equipment is complex in structure and bulky, making it poorly adaptable to small and medium-sized farmlands or areas with complex terrain; and thirdly, its reliance on external energy sources limits its widespread application in areas with limited power supply or remote locations.

[0003] In recent years, researchers both domestically and internationally have attempted to reduce equipment energy consumption by optimizing transmission structures or introducing auxiliary devices, such as using lightweight materials, improving traction mechanisms, or optimizing the design of soil covering components. However, existing technologies still generally suffer from the following problems: First, although semi-automatic mulching machines can reduce manpower input, they still rely on tractors or other power sources for traction and cannot operate independently without external energy; second, some non-powered devices rely on manual operation, and their operating efficiency is significantly lower than that of mechanized equipment, while the labor intensity of operators is not significantly reduced; third, existing non-powered equipment has limited functionality and cannot simultaneously perform mulching and soil covering operations.

[0004] With the growing global demand for sustainable agriculture and resource-saving agricultural machinery, the development of a device that requires no external energy input, has a simple structure, and can efficiently complete integrated mulching and soil covering operations has become an urgent need. This is especially true for small-scale farmers in developing countries or ecologically sensitive areas, where a non-powered solution that balances economy, environmental friendliness, and ease of operation is urgently needed. Summary of the Invention

[0005] To address the technical problems existing in the background art, the present invention provides a non-powered mulching and soil covering machine. Through innovative mechanical structure design, it utilizes gear kinetic energy conversion to achieve a fully non-powered operation of mulching and soil covering, solving the problem of mulching and soil covering in small-scale agriculture. Moreover, it improves work efficiency, reduces costs, and protects the environment without relying on external energy input.

[0006] To achieve the above objectives, the technical solution provided by the invention is as follows:

[0007] A non-powered film covering and soil covering machine includes a frame, a film covering device, and a soil covering device. The film covering device includes a film pressing roller and a pressure roller. A large forearm is rotatably mounted on one side of the frame. A pressure roller and a film pressing roller are sequentially mounted at the bottom end of the large forearm. A small forearm for mounting the film roll is mounted at the end of the large forearm. The soil covering device includes two conveyor belts mounted on the bottom side of the frame. A V-shaped funnel is positioned between the two conveyor belts. Several circular holes are opened on the bottom side of the V-shaped funnel. A plow blade is mounted on the bottom side of the frame and is arranged around the bottom outer side of the conveyor belt.

[0008] Optionally, the coating device further includes a pin, an operating lever, a propulsion module base plate, a toothed plate, and a transmission column. An operating platform and a limiting crossbar are provided on the frame. A pin is slidably mounted on the operating platform, and an operating lever is fitted to the tail of the pin. A U-shaped groove is provided on the bottom side of the limiting crossbar. The operating lever passes through the operating platform and the limiting crossbar and connects to the U-shaped groove. A return spring is fixedly installed at the lower end of the operating lever, and the other end of the return spring is installed on the operating platform. One end of the U-shaped groove is connected to the bottom end of the propulsion module base plate, and the slider and spring are alternately arranged on the... Within the U-shaped chute, a push gear is provided on the base plate of the propulsion module. The push gear is connected between the toothed plate and the transmission column. First racks are vertically arranged on both sides of the toothed plate, and the first racks are meshed with the push gear. The transmission column passes through the operating table and the limiting crossbar. The frames are connected by a first crossbar. Two large forearms are sleeved on the first crossbar. A swing gear is provided at one end of each large forearm. A second rack and a third rack are respectively provided on the upper and lower sides of the transmission column. The second rack is meshed with the push gear, and the third rack is meshed with the swing gear.

[0009] Optionally, a second crossbar is provided at the end of the large forearm, and small forearms are provided at both ends of the second crossbar. A pressure roller is rotatably provided at the bottom end of the second crossbar, and a groove is formed on the small forearm.

[0010] Optionally, the soil covering device further includes a foot pedal and foot tread, a front flywheel, a rear flywheel, a first transmission gear, and a second transmission gear. The foot pedal and foot tread are fitted onto a short shaft, and the front flywheel is fixedly installed on the short shaft. The front flywheel is connected to the rear flywheel via a transmission chain, and the rear flywheel is fixed on a long shaft. The first transmission gear is fixed on both sides of the long shaft, and the second transmission gear is perpendicularly connected to the first transmission gear. The first transmission gear and the second transmission gear are connected for transmission, and the second transmission gear is fixed on the rotating shaft of the conveyor belt.

[0011] Optionally, two rotating shafts are rotatably mounted on the inner wall of the support column. The upper end of the support column is fixed to the frame, and the lower end passes through the upper side of the plow blade and is fixed to the plow blade seat via a connector. The plow blade seat is fixed to the frame via an L-shaped cylinder, and a plow blade is provided on one side of the plow blade seat.

[0012] Optionally, the power unit includes a support plate, a large flywheel, a traction chain, and a small flywheel. The support plate is mounted on the frame and is positioned between the seat and the control panel. A short shaft is mounted on the lower end of the support plate. The long shaft extends to the outside of the frame and a large flywheel is fixedly mounted thereon. The large flywheel is connected to the small flywheel via the traction chain. The small flywheel is mounted on the axle of a telescopic wheel, which is located at the bottom of the frame.

[0013] Optionally, the conveyor belt is arranged in a ring with several material troughs, and one side of the material troughs is inclined at a 45° angle.

[0014] Optionally, the conveyor belt is provided with several baffles arranged in a ring, and the baffles are set at a 45° angle.

[0015] Optionally, the outer side of the conveyor belt is annularly fitted with a protective sleeve, the two sides of the baffle slide against the inner wall of the protective sleeve, a soil-gathering groove is provided on the bottom side of the protective sleeve, a bearing seat is provided on each side of the protective sleeve, a bearing is provided in the bearing seat and fixed to the rotating shaft by the bearing, a V-shaped funnel is fixedly provided between the two protective sleeves, and a plurality of evenly distributed grooves are provided on one side of the protective sleeve, the evenly distributed grooves are located on the side where the V-shaped funnel is located, and the evenly distributed grooves are located on the upper side of the V-shaped funnel.

[0016] Optionally, the outer side of the uniform distribution trough is provided with an inclined distribution plate for guiding the material discharge.

[0017] The invention has the following advantages and beneficial effects:

[0018] This invention provides a non-powered mulching and soil covering machine that minimizes necessary labor without requiring external energy input. It requires only one person to perform two simple actions: pedaling and pulling a latch. This mulching and soil covering machine is designed with the aim of saving energy, protecting the environment, reducing costs, and reducing labor.

[0019] This invention, through innovative mechanical structure design, utilizes gear kinetic energy conversion to achieve a fully automated, non-powered process for mulching and soil covering, solving the problem of mulching and soil covering in small-scale agriculture. Furthermore, it improves work efficiency, reduces costs, and protects the environment without relying on external energy input.

[0020] This invention optimizes the structural design of the soil covering device by loading the soil gathered by the plow blade into the transmission belt and transferring it to the inner side of the conveyor belt for dumping. At the same time, the optimized structural design of the conveyor belt ensures that the transported soil is evenly dumped and dispersed into the V-shaped funnel, avoiding soil concentration at one point and ensuring uniform soil covering. The soil covering at each point is uniform and compacted across the width of the covering film, thus improving the quality and efficiency of soil covering. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the non-powered mulching and soil covering machine in the invention.

[0022] Figure 2 This is a structural diagram of the power unit in the invention;

[0023] Figure 3 This is one of the structural diagrams of the coating device in the invention;

[0024] Figure 4 This is the second structural diagram of the coating device in the invention;

[0025] Figure 5 This is a partial structural diagram of the coating device in the invention;

[0026] Figure 6 This is one of the structural diagrams of the soil covering device and the vehicle frame in the invention;

[0027] Figure 7 This is a diagram of the first possible installation structure for the conveyor belt and V-shaped funnel in the invention.

[0028] Figure 8 This is a structural diagram of the soil covering device in the invention;

[0029] Figure 9 This is the second structural diagram of the soil covering device and the vehicle frame in the invention.

[0030] Figure 10 This is a partial structural diagram of the soil covering device and the vehicle frame in the invention;

[0031] Figure 11 This is one of the second installation structure diagrams for the conveyor belt and V-shaped funnel in the invention;

[0032] Figure 12 This is the second installation structure diagram of the conveyor belt and V-shaped funnel in the invention;

[0033] Figure 13 A cross-sectional view of the second installation structure of the conveyor belt and V-shaped funnel in the invention.

[0034] Attached reference numerals: 1-Frame, 2-Side panel, 3-Seat, 4-Control panel, 5-Telescopic wheel, 6-Backrest, 7-Support plate, 8-Armrest, 9-First crossbar, 10-Foot trough, 11-Small forearm, 12-Second crossbar, 13-Large forearm, 14-Limiting crossbar, 15-Drive column, 16-Pressure roller, 17-Pressure roller, 18-Gear plate, 19-Push gear, 20-Propulsion module base plate, 21-U-shaped slide, 22-Operating lever, 23-Pin, 24-Return spring, 25-Foot crank and foot pedal, 26-Short shaft, 27-Front flywheel, 28-Rear flywheel, 29-Drive chain, 30-Transmission chain Belt feeder, 31-V-shaped funnel, 32-plow blade, 33-long shaft, 34-first transmission gear, 35-second transmission gear, 36-support column, 37-L-shaped cylinder, 38-plow blade seat, 39-rotating shaft, 40-traction chain, 41-large flywheel, 42-small flywheel, 43-first connecting rod, 44-second connecting rod, 45-oscillating gear, 46-limiting hole, 47-second rack, 48-third rack, 49-first rack, 50-drive shaft, 51-round hole, 52-rotating roller, 53-shelter, 54-soil gathering trough, 55-bearing seat, 56-baffle, 57-uniform distribution trough, 58-connector. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the invention clearer, the technical solutions of the embodiments of the invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the invention, but not all embodiments.

[0036] Therefore, the following detailed description of embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments that can be obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0037] Example 1

[0038] like Figures 1-10 As shown, a non-powered mulching and soil covering machine includes a frame 1, a mulching device, a soil covering device, a power device, etc.

[0039] like Figures 1-10 As shown, four telescopic wheels 5 are fixedly installed under the frame 1. Side plates 2 are fixedly installed on both sides of the frame 1. A seat 3 and a control panel 4 are installed on the side plates 2. A backrest 6 is installed behind the seat 3. Armrests 8 are installed on both sides of the seat 3.

[0040] like Figures 1-10As shown, the film coating device includes a pin 23, an operating lever 22, a limiting crossbar 14, a push module base plate 20, a push gear 19, a toothed plate 18, a transmission column 15, a large forearm 13, and a film pressing roller 16.

[0041] like Figures 1-10 As shown, the coating device is controlled by the operating table 4. A pin 23 is fixed in the middle of the operating table 4, and the pin 23 can slide laterally along the operating table 4. An operating rod 22 is provided at the tail of the pin 23. A limiting crossbar 14 is provided between the two side plates 2, and the limiting crossbar 14 is located on the bottom side of the operating table 4. A U-shaped groove 21 is provided on the bottom side of the limiting crossbar 14. The operating rod 22 passes through the operating table 4 and the limiting crossbar 14 and connects to the U-shaped groove 21. Several limiting holes 46 are provided at the upper end of the operating rod 22, and the pin 23 can be fitted into the limiting holes 46. A return spring 24 is fixedly installed at the lower end of the operating rod 22, and the other end of the return spring 24 is installed on the operating table 4. The U-shaped groove 21 is fixedly installed at the bottom end of the limiting crossbar 14, and the other end is connected to the bottom end of the push module base plate 20. Within the U-shaped chute 21, sliders and springs are arranged alternately. A drive shaft 50 is mounted on the base plate 20 of the propulsion module. Push gears 19 are mounted at both ends of the drive shaft 50, connecting the gear plate 18 and the drive column 15. First racks 49 are vertically mounted on both sides of the gear plate 18, meshing with the push gears 19. The top of the drive column 15 is confined to the operating platform 4, and the middle is confined within the limiting crossbar 14. The drive column 15 passes through the operating platform 4 and the limiting crossbar 14, and has a counterweight at its bottom for lifting and lowering. The frames 1 are connected by a first crossbar 9, which mounts two large front arms 13. One end of each large front arm 13 is connected to the drive column 15, and the other end is fixed to a second crossbar 12. A pressure roller 17 is mounted in the middle of each large front arm 13. Specifically, a swing gear 45 is provided at one end of the large forearm 13, and a second rack 47 and a third rack 48 are respectively provided on the upper and lower sides of the transmission column 15. The second rack 47 is meshed with the push gear 19 and is positioned opposite to the first rack 49. The third rack 48 is meshed with the swing gear 45. A first connecting rod 43 is provided in the middle of the large forearm 13, and the pressure roller 17 is rotatably located at the bottom end of the first connecting rod 43. Small forearms 11 are provided at both ends of the second crossbar 12, and a second connecting rod 44 is provided in the middle. A pressure roller 16 is rotatably provided at the bottom end of the second connecting rod 44, and a groove is provided on the small forearm 11.

[0042] like Figures 1-10 As shown, the soil covering device includes a foot pedal and foot pedal 25, a front flywheel 27, a rear flywheel 28, a first transmission gear 34, a second transmission gear 35, a conveyor belt 30, a V-shaped funnel 31, etc.

[0043] like Figures 1-10As shown, the foot pedal 25 is fitted onto the short shaft 26, and the front flywheel 27 is fixedly mounted on the short shaft 26. The front flywheel 27 is connected to the rear flywheel 28 via a transmission chain 29. The rear flywheel 28 is fixed on the long shaft 33, and the first transmission gear 34 is fixed on both sides of the long shaft 33. A second transmission gear 35 is perpendicularly connected to the first transmission gear 34 and the second transmission gear 35. The first transmission gear 34 and the second transmission gear 35 are connected for transmission, for example, a bevel gear transmission can be used. The second transmission gear 35 is fixed on the rotating shaft 39 of the conveyor belt 30. The conveyor belt 30 is connected for transmission via two rotating rollers 52, and the rotating shaft 39 is located on the inner wall of the rotating rollers 52. A rotating shaft 39 is positioned between two side supports 36. The two shafts 39 are rotatably mounted on the inner wall of the supports 36. The supports 36 are L-shaped, with their upper ends fixed to the frame 1 and their lower ends fixed to a plowshare holder 38 via a connector 58 passing through the upper side of the plow blade 32. The plowshare holder 38 is fixed to the frame 1 via an L-shaped cylinder 37. A plow blade 32 is mounted on the plowshare holder 38, surrounding the bottom outer side of the conveyor belt 30 to gather soil to the bottom side of the conveyor belt 30. V-shaped funnels 31 are installed between the conveyor belts 30, each containing a circular hole 51. Several material troughs 10 are arranged in a ring around the conveyor belt 30, with one side of each trough 10 inclined at a 45° angle. The V-shaped funnels 31 can be fixed to the frame 1 or to the supports 36. This structure utilizes the relative rotation of two conveyor belts 30 to continuously feed the soil gathered by the plow blades 32 into the feed trough 10, and then rotates to the inside of the conveyor belts 30 to pour it into the V-shaped funnel 31, thus realizing the soil covering operation.

[0044] like Figures 1-10 As shown, the power unit includes a support plate 7, a large flywheel 41, a pulling chain 40, a small flywheel 42, etc.

[0045] like Figures 1-10 As shown, the support plate 7 is set on the frame 1 and is located between the seat 3 and the control panel 4. The lower end of the support plate 7 is supported by a short shaft 26 and the long shaft 33 extends to the outside of the frame 1 to fix the large flywheel 41. The large flywheel 41 is connected to the small flywheel 42 through the pull chain 40. The small flywheel 42 is installed on the axle of the telescopic wheel 5.

[0046] Example 2

[0047] In Example 1, two conveyor belts 30 rotate relative to each other, continuously feeding soil gathered by the plow blades 32 into the trough 10. The soil then rotates to the inner side of the conveyor belts 30 and is poured into the V-shaped funnel 31. In this structure, the height of the pouring point is fixed. When the trough 10 containing soil rotates to the inner side of the conveyor belts 30, all the soil is immediately poured out, resulting in a relatively uniform soil drop point. This leads to most of the soil concentrating at one point, causing uneven soil coverage and resulting in inconsistent and loose soil coverage across the film width. Therefore, in this embodiment, the conveyor belts 30 are further structurally optimized to improve the uniformity of the film coverage and the compactness of the soil.

[0048] like Figure 11 and Figure 12 As shown, the conveyor belt 30 is arranged with several baffles 56 in a ring, with the baffles 56 set at a 45° angle. A protective sleeve 53 is annularly fitted around the outer side of the conveyor belt 30. The baffles 56 slide against the inner wall of the protective sleeve 53 on both sides. A soil-collecting groove 54 is provided on the bottom side of the protective sleeve 53, where the baffles 56 are directly exposed on the outside. Bearing seats 55 are provided on both sides of the protective sleeve 53, and bearings are installed inside the bearing seats 55, which are fixed to the rotating shaft 39. A V-shaped funnel 31 is fixedly installed between two protective sleeves 53. The V-shaped funnel 31 has several circular holes 51 inside, which can be of equal or varying diameter. Several evenly distributed grooves 57 are provided on one side of the protective sleeve 53, located on the side where the V-shaped funnel 31 is located, and the evenly distributed grooves 57 are located above the V-shaped funnel 31.

[0049] This type of baffle 56 material distribution structure utilizes the relative rotational motion of two conveyor belts 30 to continuously load soil gathered by the plow blades 32 into the inner cavity of the baffle 56. The soil is then rotated to the inner side of the conveyor belts 30 and poured into the V-shaped funnel 31. Due to the protective sleeve 53, when the soil-filled baffle 56 rotates above the inner side of the conveyor belts 30, it is limited by the sleeve 53 and not poured out all at once. The soil is only poured out when it reaches the distribution trough 57. Therefore, as the soil-filled baffle 56 descends inside the conveyor belts 30, it continuously passes through the distribution troughs 57, distributing material through several troughs. Because the distribution troughs 57 have different heights, the soil inside the baffle 56 will follow different paths in a parabolic L trajectory as it passes through the distribution troughs 57 at different heights. Of course, to ensure that the material can be discharged along the parabolic L trajectory at different heights, an inclined distribution plate can be installed on the outer side of the distribution troughs 57 to guide the material discharge. In this structure, the height of the pouring points is dispersed, and the soil in the baffle 56 is evenly poured at different heights, resulting in the soil falling points being evenly distributed on the V-shaped funnel 31 on the bottom side. This prevents most of the soil from concentrating at one point, ensuring that the soil can fall evenly from each round hole 51 onto the membrane, ensuring uniform soil coverage. In terms of the width of the membrane, the soil coverage at each point is uniform and compact.

[0050] Working principle:

[0051] When using this invention, first insert a crossbar into the mulch film roll so that the mulch film can rotate and be placed in the groove of the small forearm 11.

[0052] Then, a staff member is required to sit on seat 3 with both feet on the footrests and foot pedals 25. Seat 3 has armrests 8 on the left and right sides for safety, and a backrest 6 for comfort. The staff member can open the covering device by pulling out the pin 23, disengaging the tail of the pin 23 from the limiting hole 46 on the operating lever 22. The staff member then presses down on the top of the operating lever 22, causing the tail of the operating lever 22 to enter the U-shaped slide 21. Due to the pressure from the tail of the operating lever 22, the slider and spring within the U-shaped slide 21 begin to move along the inner wall of the U-shaped slide 21. The first half of the slider and spring within the U-shaped slide 21... As it moves downwards, the rear half moves upwards, thereby driving the base plate 20 of the propulsion module to rise. The push gear 19 mounted inside the base plate 20 climbs upwards along the toothed plate 18. The transmission column 15, which is connected to the push gear 19, moves upwards under the drive of the push gear 19. The large forearm 13, which is connected to the lower end of the transmission column 15, rotates downwards, causing the small forearm 11, pressure roller 17, and film pressing roller 16 to all move downwards. When the pressure roller 17 and film pressing roller 16 contact the top of the ridge, the operator stops pressing the operating lever 22 and inserts the pin 23 into the limiting hole 46 of the operating lever 22 to fix it.

[0053] Then, the workers leave the mulching and soil covering machine, placing the initial part of the mulch film under the pressure roller 17 and the film-pressing drum 16. They then ride the mulching and soil covering machine again, stepping on the foot pedals 25 to activate the soil covering and power devices. The foot pedals 25 rotate the front flywheel 27, which in turn rotates the rear flywheel 28 via the transmission chain 29. The rear flywheel 28 and the first transmission gear 34 are fixed to the long shaft 33, and their rotation drives the second transmission gear 35, which is fixed to the shaft 39 of the conveyor belt 30. One conveyor belt 30 rotates clockwise, and the other rotates counterclockwise. The plow blade 3... 2. The plow blades 32 are placed close to the conveyor belt 30, extending to both sides of the conveyor belt 30. After shoveling the soil, they can be gathered together. The baffle 56 of the conveyor belt 30 is set at a 45° angle, or the trough 10 of the conveyor belt 30 is set at a 45° angle, with an internal cross-section of an inverted right trapezoid. This allows soil to be loaded at the soil gathering point, preventing soil from spilling when it rises on the outside of the conveyor belt 30. When rotating to the inside of the conveyor belt 30, the internal cross-section of the conveyor belt 30 will become a right trapezoid, conveying the soil into the V-shaped funnel 31. The soil is then spread onto the laid mulch film through the round hole 51 of the V-shaped funnel 31, realizing the mulch film covering and soil covering operation.

[0054] The power unit uses foot pedals 25 to rotate the rear flywheel 28. A large flywheel 41 is fixedly mounted on the outside of the frame via a long shaft 33. The large flywheel 41 is driven to rotate by the long shaft 33. The large flywheel 41 rotates the small flywheel 42 via a pull chain 40. The small flywheel 42 is coaxial with the telescopic wheel 5, driving the telescopic wheel 5 to rotate, thus providing rear-drive force for the mulching and soil covering machine. In summary, this mulching and soil covering machine can easily complete the mulching and soil covering work without external energy input.

[0055] The above are merely preferred embodiments of the invention and are not intended to limit the invention. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A non-powered mulching and soil covering machine, characterized in that: Frame, film coating device and soil covering device are included, The film coating device includes a film pressing roller and a pressure roller, one side of the frame is rotatably provided with a large forearm, the bottom end of the large forearm is sequentially provided with the pressure roller and the film pressing roller, the end of the large forearm is provided with a small forearm for mounting a film roll; The soil covering device includes two conveyors arranged on the bottom side of the frame, a V-shaped funnel is arranged between the two conveyors, a plurality of round holes are formed in the bottom side of the V-shaped funnel; a plow is arranged on the bottom side of the frame, the plow is annularly arranged outside the bottom end of the conveyor; The film coating device further includes a latch, an operating lever, a propulsion module bottom plate, a toothed plate and a transmission column, An operating table and a limiting cross bar are arranged on the frame, the operating table is slidably provided with a latch, the tail of the latch is provided with an operating lever, the bottom side of the limiting cross bar is provided with a U-shaped sliding groove, the operating lever passes through the operating table and the limiting cross bar and is connected to the U-shaped sliding groove, the lower end of the operating lever is fixedly installed with a return spring, the other end of the return spring is installed on the operating table; One end of the U-shaped sliding groove is connected to the bottom end of the propulsion module bottom plate, the sliding blocks and the springs are alternately arranged in the U-shaped sliding groove, a driving gear is arranged on the propulsion module bottom plate, the driving gear is connected between the toothed plate and the transmission column, first racks are vertically arranged on both sides of the toothed plate, the first racks are meshingly connected with the driving gear; the transmission column passes through the operating table and the limiting cross bar, the frames are connected by a first cross bar, two large forearms are sleeved on the first cross bar, one end of the large forearm is provided with a swing gear, second and third racks are respectively arranged on the upper and lower sides of the transmission column, the second rack is meshingly connected with the driving gear, and the third rack is meshingly connected with the swing gear; The soil covering device further includes a foot crank and a foot pedal, a front flywheel, a rear flywheel, a first transmission gear and a second transmission gear, The foot crank and the foot pedal are sleeved on a short shaft, the front flywheel is fixedly installed on the short shaft, the front flywheel is connected with the rear flywheel through a transmission chain, the rear flywheel is fixed on a long shaft, the first transmission gear is fixed on both sides of the long shaft, the second transmission gear is vertically connected with the first transmission gear, the first transmission gear and the second transmission gear are connected in transmission, and the second transmission gear is fixed on the rotating shaft of the conveyor; Two rotating shafts are rotatably arranged on the inner wall of the support column, the upper end of the support column is fixed on the frame, the lower end passes through the upper side of the plow and is fixed on the plow seat through a connecting piece, the plow seat is fixed on the frame through an L-shaped cylinder, and the plow seat is provided with a plow on one side; Further including a power device, the power device includes a support plate, a large flywheel, a pulling chain and a small flywheel, the support plate is arranged on the frame, the support plate is arranged between the seat and the operating table, the lower end of the support plate is arranged on a short shaft, the long shaft extends to the outside of the frame and is fixedly installed with a large flywheel, the large flywheel is connected with a small flywheel through a pulling chain, the small flywheel is installed on the shaft of a telescopic wheel, and the telescopic wheel is arranged at the bottom end of the frame.

2. The unpowered mulch film applicator of claim 1, wherein: The end of the large forearm is provided with a second cross bar, both ends of the second cross bar are provided with small forearms, the bottom end of the second cross bar is rotatably provided with a film pressing roller, and grooves are formed in the small forearms.

3. The unpowered mulch film applicator of claim 1, wherein: The conveying belt is annularly arranged with a plurality of material grooves, and one side of the material groove is arranged at an inclination angle of 45°.

4. The unpowered mulch film applicator of claim 1, wherein: The conveying belt is annularly arranged with a plurality of baffles, and the baffle is arranged at an inclination angle of 45°.

5. The unpowered mulch film applicator of claim 4, wherein: The outer side of the conveying belt is annularly sleeved with a sheath, the two sides of the baffle slide against the inner wall of the sheath, the bottom side of the sheath is provided with a soil collecting groove, the two sides of the sheath are respectively provided with bearing seats, bearings are arranged in the bearing seats, the bearings are fixed on the rotating shaft through the bearing seats, a V-shaped funnel is fixedly arranged between the two sheaths, one side of the sheath is provided with a plurality of uniform distribution grooves, the uniform distribution grooves are arranged on the side where the V-shaped funnel is located, and the uniform distribution grooves are arranged on the upper side of the V-shaped funnel.

6. The unpowered mulch film applicator of claim 5, wherein: The outer side of the uniform distribution groove is provided with an inclined distribution plate for guiding the discharge of the material.

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