Soil film co-covering mechanism

Abstract

The utility model discloses a soil and film co-covering mechanism which comprises a splayed covering device, a film covering structure and a six-rod driving structure, and the film covering structure comprises two film covering connecting rods arranged at intervals and two film covering assemblies arranged at intervals; the six-rod driving structure comprises a driving source, a crank lever, a rocker, a connecting rod, a rotating rod and a rack. The driving source drives one end of the crank lever to move upwards, the connecting rod correspondingly moves downwards, the splayed covering device is driven to move downwards, the splayed covering device cuts into soil to complete soil covering, meanwhile, the rotating rod moves downwards under the action of the connecting rope, the film covering structure moves downwards to conduct film covering, then film covering and soil covering can be conducted simultaneously through the same driving source, and the structure is simple. The film mulching and soil covering device is installed behind the planting machine, planting, film mulching and soil covering can be completed at a time, and a large amount of time cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to a soil film co-covering mechanism. Background Art

[0002] The soil covering and film covering of the planting machine is an automated planting equipment, which can realize the precise sowing of seeds and the covering of soil and film, thereby providing a good growth environment for the seeds. The purpose of covering soil and film is to protect the seeds, prevent the evaporation of water too quickly, and avoid damage by birds and other animals. Soil covering can also maintain the structural stability of the soil and reduce wind erosion and water erosion of the soil. In this regard, people have begun to study automated planting equipment, among which soil covering of the planting machine is an important research content. The existing mechanized soil covering operations are mainly divided into soil covering on the edge of the film, soil covering on the entire film surface, soil covering on the seed row, and soil covering on the hole, and the soil covering operations tend to be precise. The existing soil covering and film covering machines need to set up multiple drive power supplies for separate control, and the structure is complex. Utility Model Content

[0003] The utility model aims to provide a soil film co-covering mechanism to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical solutions adopted to solve the above technical problems are:

[0005] The utility model provides a soil film co-covering mechanism, comprising an eight-shaped soil covering device, a film covering structure, and a six-rod driving structure, wherein the film covering structure comprises two film covering connecting rods arranged at intervals and two film covering components arranged at intervals; the six-rod driving structure comprises a driving source, a crank lever, a rocker, a connecting rod, a rotating rod, and a frame, wherein the driving source is arranged on the frame, the middle part of the rotating rod is rotatably arranged on the frame, the crank lever is rotatably connected to the rotating rod, the two ends of the crank lever are respectively connected to the driving end and the connecting rod of the driving source, the rocker is respectively rotatably connected to the connecting rod and the rotating rod, the eight-shaped soil covering device is arranged at the bottom of the connecting rod, the film covering connecting rod is rotatably arranged on the frame, the film covering connecting rod is connected to the output end of the driving source through a connecting rope, and the crank lever, the rocker, the connecting rod, and the rotating rod are driven by the driving source in the same longitudinal plane to drive the eight-shaped soil covering device and the film covering connecting rod to rotate accordingly so that the film covering component and the eight-shaped soil covering device descend and enter a working state.

[0006] The beneficial effects of the utility model are:

[0007] The driving source drives one end of the crank lever to move upward, and the connecting rod moves downward accordingly, driving the eight-shaped soil covering device to move downward, and the eight-shaped soil covering device cuts into the soil to complete the soil covering. At the same time, the rotating rod moves downward under the action of the connecting rope, and the film covering structure moves downward to cover the film, and then the film covering and soil covering can be carried out at the same time through the same driving source, and the structure is simple. The utility model is installed behind the planting machine, and the planting, film covering and soil covering can be completed in one trip, saving a lot of time and cost.

[0008] As a further improvement of the above technical solution, the laminating assembly includes a coaxially arranged laminating disc and a film pressing wheel, and the heights of the laminating disc and the film pressing wheel relative to the laminating connecting rod are adjustable.

[0009] As a further improvement of the above technical solution, the interval between the laminating disc and the film pressing wheel is adjustable.

[0010] As a further improvement of the above technical solution, the coated disc is provided with a threaded shaft, the bottom end of the coated connecting rod is provided with a connecting plate, the threaded sleeve is provided with a first pipe clamp, the first pipe clamp is fixed to the connecting plate by a first bolt, and the threaded shaft can rotate relative to the coated connecting rod.

[0011] As a further improvement of the above technical solution, the laminating wheel is provided with a longitudinal axis, the longitudinal axis is provided with a second tube clamp, and the second tube clamp is fixed to the connecting plate by a second bolt.

[0012] As a further improvement of the above technical solution, the angle of the coating disc relative to the coating connecting rod can be rotatably adjusted.

[0013] As a further improvement of the above technical solution, the frame is provided with a longitudinally arranged coating connection rod and two fixed pulleys, the coating connection rod is provided with an optical axis, and the connecting rope is wound around the optical axis and the fixed pulleys.

[0014] As a further improvement of the above technical solution, the optical axis is provided with a limiting sleeve for limiting the connecting rope.

[0015] As a further improvement of the above technical solution, the number of the crank levers and the rocker arms are both provided with two, the two crank levers are respectively hinged to the two sides of the rotating rod and the connecting rod, and the two rocker arms are respectively hinged to the two sides of the rotating rod and the connecting rod.

[0016] As a further improvement of the above technical solution, the driving source includes an electric push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0018] Figure 1This is a schematic structural diagram of an embodiment of the soil film co-covering mechanism provided by the utility model, wherein six arrows represent forward, backward, left, right, upward and downward directions respectively;

[0019] Figure 2 This is a front view of an embodiment of the soil film co-covering mechanism provided by the utility model, wherein four arrows respectively represent the forward direction, the rearward direction, the upward direction and the downward direction;

[0020] Figure 3 This is a top view of an embodiment of the soil film co-covering mechanism provided by the utility model, wherein four arrows represent the forward direction, the backward direction, the upward direction and the downward direction respectively;

[0021] Figure 4 It is a side view of an embodiment of the soil film co-covering mechanism provided by the utility model, wherein four arrows respectively represent the forward direction, the backward direction, the upward direction and the downward direction;

[0022] Figure 5 This is a motion diagram of an embodiment of the soil film co-covering mechanism provided by the utility model;

[0023] Figure 6 The utility model provides a soil film co-covering mechanism, and a motion diagram of one embodiment thereof.

[0024] Reference numerals:

[0025] Figure eight soil covering device 100, film covering structure 200, film covering connecting rod 210, film covering disc 220, threaded shaft 221, connecting plate 222, first pipe clamp 223, film pressing wheel 230, longitudinal axis 231, second pipe clamp 232, optical axis 240, limiting sleeve 241, fixed pulley 250, six-rod driving structure 300, electric push rod 310, crank lever 320, rocker 330, connecting rod 340, rotating rod 350, frame 360, connecting rope 370. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present utility model, if there are words such as "several", it means one or more, "more" means more than two, greater than, less than, exceed, etc. are understood to exclude the number, and above, below, within, etc. are understood to include the number.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Reference Figures 1 to 6 The soil film co-covering mechanism of the utility model is implemented as follows:

[0031] In some embodiments, the soil-film co-covering mechanism includes an eight-shaped soil covering device 100, a film covering structure 200, and a six-rod driving structure 300. The six-rod driving structure 300 can simultaneously drive the eight-shaped soil covering device 100 and the film covering structure 200 to fall for soil covering and film covering.

[0032] As the main part of the soil covering work, the eight-character soil covering device 100 needs to ensure that after the taro planter inserts the seed into the soil, the soil covering amount of the eight-character soil covering device 100 to the planting hole is sufficient and evenly distributed, so it is necessary to select the eight-character soil covering device 100 of suitable spacing, and the eight-character soil covering device 100 is in the process of advancing forward, and the steel plates on both sides will drive the soil to gather towards the middle, so that the soil can evenly fall into the planting hole, and the soil density is small, which is conducive to the germination of taro seeds. At the same time, due to ensuring that the soil covering depth reaches the planting depth of taro, the eight-character soil covering device 100 will be subject to huge resistance during the forward process, so it is necessary to fix the eight-character soil covering device 100 with shoulder bolts and nuts on the connecting rod 340, and have a relative angle of about 45° with the straight line where the connecting rod 340 is located, to prevent the eight-character soil covering device 100 from deflecting, and reduce the use efficiency. The eight-character soil covering device 100 is an outsourced product, and the utility model is not specifically introduced.

[0033] The 6RP mechanism, that is, the six-bar mechanism, is used to realize the soil-exhumation function and depth adjustment of the eight-shaped soil cover 100.

[0034] Reference Figure 4The six-rod driving structure 300 includes a driving source, a crank lever 320, a rocker 330, a connecting rod 340, a rotating rod 350, and a frame 360. The driving source is arranged on the frame 360. In this embodiment, the driving source adopts an electric push rod 310, and a linear driving structure such as an oil cylinder or a pneumatic cylinder can also be adopted. The electric push rod 310 is vertically extended, and the lower end of the rotating rod 350 is rotatably arranged on the frame 360. The middle part of the crank lever 320 is connected to the rotating rod 350, and the rotating point is a fulcrum. The two ends of the crank lever 320 are respectively connected to the driving end of the driving source and the connecting rod 350. The crank lever 320, the rocker arm 330, the connecting rod 340 and the rotating rod 350 are connected in rotation with each other, the figure eight soil covering device 100 is arranged at the bottom of the connecting rod 340, the film covering connecting rod 210 is rotatably arranged on the frame 360, and the film covering connecting rod 210 is connected to the output end of the driving source through a connecting rope 370. The crank lever 320, the rocker arm 330, the connecting rod 340 and the rotating rod 350 are driven by the driving source in the same longitudinal plane to drive the figure eight soil covering device 100 and the film covering connecting rod 210 to rotate accordingly, so that the film covering assembly and the figure eight soil covering device 100 descend and enter the working state.

[0035] The degrees of freedom of the six-bar mechanism are:

[0036] F=3n-(2p1+p b )=3×5-(2×6+2)=1

[0037] The 6RP mechanism is a six-bar mechanism, with an electric push rod 310 as a driving source, and is made of a crank lever 320, a rocker 330, a connecting rod 340, and an eight-shaped soil cover 100 fixed thereon, and an aluminum profile frame 360. The kinematic pair is a sliding pair at the electric push rod 310 and a rotation pair between the crank lever 320, the rocker 330, and the connecting rod 340. The rotation pair uses the shoulder bolt optical axis 240 as a rotation pair and is locked and fixed with a corresponding nut. The electric push rod 310 drives the 6RP connecting rod 340 mechanism, thereby driving the connecting rod 340 to drive the eight-shaped soil cover 100 to change the upper and lower distances. The eight-shaped soil cover 100 is buried in the soil before working, and the soil covering depth of the eight-shaped soil cover 100 is adjusted during working, and it leaves the soil when working is finished. The 6RP mechanism extends the crank length on the basis of the original four-bar mechanism as a crank rocker 330 mechanism, so that the extended length is greater than the original length of the crank. The frame 360 ​​is the fulcrum. At the end of the extended active rod, an electric push rod 310 with a stroke of 200mm is connected to provide power. At this time, with the frame 360 ​​as the fulcrum, the extended crank forms a lever. Figure 5 As shown:

[0038] According to the leverage balance condition:

[0039] F1l1=F2l2

[0040] The two ends of the crank lever 320 are connected to the soil covering part composed of the connecting rod 340, the eight-shaped soil covering device 100 and the electric push rod 310 respectively. When the two are assumed to be balanced in gravity, since the force arm is inversely proportional to the force, the force arm length at one end of the electric push rod 310 is greater than the force arm length at one end of the soil covering part, so the effect of making the electric push rod 310 labor-saving can be achieved, that is, when the same load is taken to complete the same soil covering work, the 6RP mechanism is driven by the electric push rod 310, which can provide less power than the original crank rocker 330 mechanism, so the 6RP mechanism can have room to complete the soil covering work with greater difficulty. At the same time, the design of this mechanism is also to allow the car to rise and retract when not working, and no longer contact with the ground, to prevent the eight-shaped soil covering device 100 from continuing to rub against the ground when the car leaves the ridge and drives, thereby increasing the resistance of the car. When performing soil covering work, when the electric push rod 310 extends upward, the figure-eight soil covering device 100 moves downward clockwise around the rotating pair and cuts into the soil. As the electric push rod 310 continues to extend upward, the figure-eight soil covering device 100 cuts deeper into the soil until the optimal soil covering depth is reached, thereby performing soil covering work and improving soil covering efficiency. Since the electric push rod 310 is self-locking, when it is fixed, the entire mechanism is in a balanced and fixed state, ensuring the stability of the soil covering work. When the machine exits the ridge, the electric push rod 310 retracts downward, and the figure-eight soil covering device 100 moves upward counterclockwise around the rotating pair, exits the soil, and is placed in the air. The motion diagram of the 6RP mechanism is shown in the figure below. Figure 5 shown.

[0041] After the taro seeds are covered with soil, the ridges where the sowing has been completed need to be covered with film. Therefore, on the basis of the soil covering mechanism, a film covering structure 200 that can be linked with the soil covering mechanism is added, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 shown.

[0042] The film pressing wheel 230 in the film covering structure 200 is responsible for flattening the laid film so that it is evenly covered on the ridge, and the film covering disc 220 is responsible for compacting the soil on both sides of the film, thereby fixing the film and preventing it from being blown over by strong wind. Because the height of the ridges in different regions is different, and the distance between the base of the taro planting machine and the ground is fixed, in order to avoid the problem that the film pressing wheel 230 does not contact the ground film and the film covering disc 220 cannot be inserted into the soil on both sides of the ground film, the film pressing wheel 230 and the film covering disc 220 are clamped on the mechanism using the second pipe clamp 232 and the first pipe clamp 223 respectively. The bottom end of the film covering connecting rod 210 is provided with a connecting plate 222, and the film covering disc 220 is provided with a threaded shaft 221. The threaded shaft 221 is sleeved with a first pipe clamp 223, and the first pipe clamp 223 is locked at the threaded shaft 221 of the film covering disc 220. The first pipe clamp 223 is fixed to the connecting plate 222 by a first bolt, and the threaded shaft 221 can rotate relative to the film covering connecting rod 210. The film pressing wheel 230 is provided with a longitudinal axis 231, and the longitudinal axis 231 is provided with a second pipe clamp 232. The second pipe clamp 232 is fixed to the connecting plate 222 by a second bolt. The film pressing wheel 230 is connected to the connecting plate 222 through the film pressing wheel 230 connecting plate 222 using the second pipe clamp 232 and the film coating disc 220. Figure 5 shown.

[0043] The angle of the film-covering disc 220 relative to the film-covering connecting rod 210 can be rotated and adjusted. Specifically, the first tube clamp 223 can lock the film-pressing wheel 230 by rotating and tightening the first bolt, and can lock the film-pressing wheel 230 by rotating and tightening the second bolt. Loosening the first bolt can make the first tube clamp 223 move on the threaded shaft 221, change the fixed position, and change the distance between the film-covering disc 220 and the ground, thereby solving the problem caused by the different heights of ridges in different regions, making the mechanism practical and extensive. At the same time, since the projection surfaces of the threaded shaft 221 and the first tube clamp 223 on the film-covering disc 220 are both circular, when the first bolt on the first tube clamp 223 is in a loose state, the film-covering disc 220 can be rotated to change the relative angle, and then tightened and fixed. The larger the relative angle of the film-covering disc 220, the greater the amount of soil covering, so that the ground film covering the ridge is more stable.

[0044] The laminating wheel 230 and the laminating disc 220 are connected to the frame 360 ​​through the laminating connecting rod 210 using trapezoidal bolts and nuts on the angle seat. The frame 360 ​​is provided with a longitudinally arranged laminating connecting rod 210 and two fixed pulleys 250. The laminating connecting rod 210 is provided with an optical axis 240, and the connecting rope 370 is wound around the optical axis 240 and the fixed pulley 250. In this embodiment, the connecting rope 370 is made of steel wire rope, and nylon rope, steel strand, etc. can also be used. One end of the steel wire rope is hung on the coating connecting rod 210, and then the steel wire rope is bent and twisted through the fixed pulley 250. The other end is connected to the optical axis 240 at the center of the joint end of the electric push rod 310. A limit sleeve 241 is provided on the optical axis 240. The limit sleeve 241 uses a stop ring to limit the axial movement of the steel wire rope. The steel wire rope is first buckled into a circle with an aluminum buckle, and then respectively sleeved on the shoulder bolts at the center of the optical axis 240 and the coating connecting rod 210, and the stop ring is used to limit its axial movement, forming a fixed pulley 250 group driven by the electric push rod 310. Figure 4 and Figure 1 When the electric push rod 310 is extended, the film pressing wheel 230 and the film coating disc 220 start working as the film coating connecting rod 210 descends; when the electric push rod 310 is retracted, the film pressing wheel 230 and the film coating disc 220 end working as the film coating connecting rod 210 ascends.

[0045] Since the electric push rod 310 is also the driving source of the soil covering mechanism, the film covering structure 200 and the soil covering mechanism constitute a double linkage mechanism driven simultaneously by the electric push rod 310, that is, an adaptively regulated soil film co-covering mechanism. The electric push rod 310 extends, the eight-shaped soil covering device 100 in the 6RP connecting rod 340 mechanism in front of the mechanism descends, and the film pressing wheel 230 and the film covering disc 220 of the pulley group at the rear descend, and the soil covering and film covering work start at the same time. Since the two parts have different front and back sequences, the working requirements of covering the soil first and then covering the film can be achieved in space; the electric push rod 310 contracts, the eight-shaped soil covering device 100 in the 6RP connecting rod 340 mechanism in front of the mechanism rises, and the film pressing wheel 230 and the film covering disc 220 of the pulley group at the rear rise, and the soil covering and film covering work are completed at the same time. The adaptively regulated soil film co-covering mechanism enhances the power and efficiency of the entire system, making it possible to complete two tasks at the same time, making soil covering and film covering more efficient. The linkage diagram is shown in the figure below. Figure 6 as shown.

[0046] The utility model has the following advantages:

[0047] Mechanism working state regulation: driven by the electric push rod 310 with a stroke of 200mm, the working state of the soil-film co-covering mechanism can be regulated by using the 6RP connecting rod 340 mechanism. The electric push rod 310 extends, the eight-shaped soil covering device 100 in the 6RP connecting rod 340 mechanism in front of the mechanism descends, and the film pressing wheel 230 and the film covering disc 220 of the pulley group at the rear descend, and the soil and film covering work starts at the same time. Since the two parts have different front and back sequences, the working requirements of covering the soil first and then covering the film can be achieved in space; the electric push rod 310 contracts, the eight-shaped soil covering device 100 in the 6RP connecting rod 340 mechanism in front of the mechanism rises, and the film pressing wheel 230 and the film covering disc 220 at the rear rise, and the soil and film covering work ends at the same time. At the same time, the soil covering depth of the figure-eight soil covering device 100 after being inserted into the soil can be adjusted during operation. According to the soil covering amount requirements of different taro varieties in different regions, the depth of the figure-eight soil covering device 100 after being inserted into the soil can be changed by changing the telescopic length of the electric push rod 310, thereby changing the soil covering amount to adapt to different soil covering requirements.

[0048] The design of labor-saving lever in 6RP mechanism: In 6RP mechanism, the active crank is extended so that the extended distance is greater than its original length. The frame 360 ​​is the fulcrum. At the end of the extended active rod, an electric push rod 310 with a stroke of 200mm is connected to provide power, and a lever is formed at this time. According to the principle of lever, when two heavy objects are balanced, their distance from the fulcrum is inversely proportional to the weight. Since the extended distance is greater than the original length of the active rod, the labor-saving effect can be achieved. Under the condition of bearing the same load and completing the same covering work, the electric push rod 310 can provide less power compared with the original double rocker 330 mechanism. Therefore, the electric push rod 310 can have room to complete more difficult covering work. At the same time, the electric push rod 310 has self-locking properties. After the electric push rod 310 drives the covering disc to insert into the soil and keep it fixed, the structure is very stable, there will be no vibration during operation, and it is reliable.

[0049] The double linkage mechanism of covering soil and covering film can complete the two tasks of covering soil and covering film by using one electric push rod 310 as the driving source, thereby improving the energy utilization efficiency and work efficiency and reducing the production cost; the parts in the mechanism are simply and efficiently matched, which can effectively reduce the wear and damage of the parts; the electric push rod 310 can provide a force of more than 1000N, the pressing force is sufficient, and the electric push rod 310 has self-locking property. When it is fixed, the whole mechanism is in a balanced and fixed state, ensuring the stability of the soil covering work; the eight-shaped soil covering device 100 is directly inserted into the soil, which will not cause the soil to fly and cause environmental pollution.

[0050] The 6RP mechanism is highly practical, with adjustable working state and soil covering depth, so as to change the amount of soil covering and soil covering of crops, and meet the requirements of soil covering and film covering of different crops. It has a stable structure, high strength and high efficiency when working. The mechanism occupies a small volume, which makes it more convenient to integrate the machine with other mechanisms. It is processed with annealed steel, has low wear and long service life. The remote control intelligently controls the extension and retraction of the electric push rod 310, so as to adjust the working state of the soil film co-covering mechanism and reduce manpower.

[0051] The preferred implementation modes of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Soil film co-covering mechanism, characterized in that: include: Eight-character soil covering device (100); A film coating structure (200) comprises two film coating connecting rods (210) arranged at intervals and two film coating components arranged at intervals; The six-bar driving structure (300) comprises a driving source, a crank lever (320), a rocking rod (330), a connecting rod (340), a rotating rod (350), and a frame (360), wherein the driving source is arranged on the frame (360), the rotating rod (350) is rotatably arranged on the frame (360), the crank lever (320) is rotatably connected to the rotating rod (350), the two ends of the crank lever (320) are respectively connected to the driving end of the driving source and the connecting rod (340), the rocking rod (330) is respectively rotatably connected to the connecting rod (340) and the rotating rod (350), The eight-shaped soil covering device (100) is arranged at the bottom of the connecting rod (340), the film covering connecting rod (210) is rotatably arranged on the frame (360), the film covering connecting rod (210) is connected to the output end of the driving source through a connecting rope (370), and the crank lever (320), the rocker (330), the connecting rod (340), and the rotating rod (350) are driven by the driving source in the same longitudinal plane to rotate the eight-shaped soil covering device (100) and the film covering connecting rod (210) accordingly, so that the film covering assembly and the eight-shaped soil covering device (100) descend and enter a working state.

2. The soil film co-covering mechanism according to claim 1 is characterized in that: The laminating assembly comprises a laminating disc (220) and a laminating wheel (230) which are coaxially arranged, and the heights of the laminating disc (220) and the laminating wheel (230) relative to the laminating connecting rod (210) are adjustable.

3. The soil film co-covering mechanism according to claim 2 is characterized in that: The interval between the film-coating disc (220) and the film-pressing wheel (230) is adjustable.

4. The soil film co-covering mechanism according to claim 3 is characterized in that: The coated disc (220) is provided with a threaded shaft (221), the bottom end of the coated connecting rod (210) is provided with a connecting plate (222), the threaded shaft (221) is sleeved with a first pipe clamp (223), the first pipe clamp (223) is fixed to the connecting plate (222) by a first bolt, and the threaded shaft (221) can rotate relative to the coated connecting rod (210).

5. The soil film co-covering mechanism according to claim 4 is characterized in that: The film pressing wheel (230) is provided with a longitudinal axis (231), and the longitudinal axis (231) is provided with a second pipe clamp (232), and the second pipe clamp (232) is fixed to the connecting plate (222) by a second bolt.

6. The soil film co-covering mechanism according to claim 2 is characterized in that: The angle of the coating disc (220) relative to the coating connecting rod (210) can be rotated and adjusted.

7. The soil film co-covering mechanism according to claim 1 is characterized in that: The frame (360) is provided with a longitudinally arranged coating connection rod (210) and two fixed pulleys (250); the coating connection rod (210) is provided with an optical axis (240); and the connection rope (370) is wound around the optical axis (240) and the fixed pulleys (250).

8. The soil film co-covering mechanism according to claim 7, characterized in that: The optical axis (240) is provided with a limiting sleeve (241) for limiting the position of the connecting rope (370).

9. The soil film co-covering mechanism according to claim 1, characterized in that: The crank levers (320) and the rocking arms (330) are each provided with two, the two crank levers (320) are respectively hinged to the two sides of the rotating rod (350) and the connecting rod (340), and the two rocking arms (330) are respectively hinged to the two sides of the rotating rod (350) and the connecting rod (340).

10. The soil film co-covering mechanism according to claim 1, characterized in that: The driving source includes an electric push rod (310).

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