A mulching apparatus for agricultural cultivation

Abstract

The present application relates to the field of agricultural cultivation, and particularly relates to a mulching equipment for agricultural cultivation, aiming at the problem that the existing technology mainly uses manual replacement when replacing the mulching film, which is not conducive to the operation of soil mulching, the mulching equipment for agricultural cultivation is provided, which comprises a mounting frame and a transposer rotatably connected to the inner side of the mounting frame, the transposer can be installed with multiple mulching tubes, a support capable of swinging up and down is rotatably arranged at the left end of the mounting frame, a pressing wheel and a soil covering wheel are respectively arranged on the front side of the support, after the mulching tube is used, the support can be lifted to drive the transposer to intermittently rotate, so that the new mulching tube is rotated to the front side for use, and when the support is lifted upward, the pressing wheel and the soil covering wheel are lifted upward synchronously, which facilitates pulling out the new mulching film for use, and through repeating the above operation, the operation of lifting the pressing wheel and the soil covering wheel and replacing the mulching tube can be easily completed, the operation steps of the operator for replacing the mulching tube are reduced, and the operator is facilitated to use.

Description

Technical Field

[0001] This invention relates to the field of agricultural cultivation, and more specifically to a mulching device for agricultural cultivation. Background Technology

[0002] In the field of agricultural cultivation, mulching technology, as a key means to increase crop yield and improve the growing environment, has been widely used in the planting of various crops such as corn, cotton, and vegetables. Its core function is to cover the ground with plastic film to achieve the effects of moisture retention, warming, inhibiting weed growth, and reducing the spread of pests and diseases. Especially in arid and semi-arid regions and during cold seasons, it is crucial for ensuring crop emergence rate and early growth. With the improvement of agricultural mechanization, traditional manual mulching methods are gradually being replaced by mechanized mulching equipment due to problems such as low efficiency, unstable mulching quality, and high labor costs.

[0003] As disclosed in the prior art patent application document with application number 2019109711247, a soil mulching machine includes a base plate, wheels, a pull rod, a vertical plate, a cylinder, a fixing device, and a first bearing seat. Two wheels are rotatably mounted on the left side of both the front and rear sides of the base plate. The pull rod is installed on the top left side of the base plate, and a vertical plate is fixedly connected to the rear left side of the top of the base plate. This invention, by covering the cylinder with a plastic film and fixing it with an arc-shaped plate, moves the end of the plastic film through the opening to contact the soil. Then, the plastic film is inserted into the soil through a sleeve. This allows the device to be pulled to the left to cover the soil with the plastic film. This eliminates the need for two people to hold the ends of the plastic film separately, making it more convenient.

[0004] For example, the patent application document with application number 202111107173X discloses an agricultural seedling mulching machine and its usage method. The machine uses a moving wheel to roll on the land, a retaining plate to push the soil to both sides of the film and compact the soil on both sides of the film, and a retaining plate to push the soil to the outside of the moving wheel. The soil enters the soil receiving cover and moves along the soil walking groove one and soil walking groove two to the middle of the positioning column and falls to the top surface of the film, thus compacting the top of the film with soil. The rolling of the moving wheel combines the soil compaction on the top of the film with the soil compaction on the sides of the film, improving the efficiency of mulching.

[0005] However, in the actual agricultural construction process of mulching, due to the large land area, the mulch is usually laid in rows and rows. The large coverage area of ​​the mulch means that a large area of ​​mulch is used. Under normal construction, one roll of mulch is not enough to cover the soil that needs to be covered, and it needs to be replaced multiple times during use. At present, the replacement is mainly done manually, which is not conducive to the operation of mulching. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the present invention provides a mulching device for agricultural cultivation, which effectively solves the problems mentioned in the background art.

[0007] The technical solution adopted by the present invention to solve the above problems is as follows:

[0008] A film covering device for agricultural cultivation includes a film covering cylinder, a mounting frame, and a shifter rotatably connected to the inside of the mounting frame. The shifter can install multiple film covering cylinders. The left end of the mounting frame has a support that can swing up and down. A pressure roller and a soil covering roller are respectively installed on the front side of the support.

[0009] A clutch is installed between the bracket and the transducer. The clutch can control the transmission and disconnection between the bracket and the transducer. When the drive structure is connected to the bracket and the transducer respectively, the transducer can be driven to rotate intermittently by controlling the bracket to swing upward. Each time the transducer rotates intermittently, a coating cylinder can be moved to the front side.

[0010] The front of the two brackets is rotatably connected to a cutting blade that can swing inward. The drive structure includes a handle that can swing back and forth, which serves as the control end of the clutch. When the handle swings forward, it drives the clutch to connect with the bracket for transmission, thus forming a structure in which the cutting blade swings inward.

[0011] Furthermore, the transducer includes a rotating plate rotatably connected to the inner side of the mounting frame. Multiple mounting rods distributed in a ring are rotatably connected to the surface of the rotating plate. The other end of each mounting rod is provided with a threaded hole and a baffle is provided at the other end of each mounting rod. A connecting screw is fixedly connected to the middle part of each baffle, and the baffle is threadedly connected to the threaded hole through the connecting screw.

[0012] A grooved wheel is coaxially fixed to the left end of the mounting plate. A drive wheel is engaged on one side of the grooved wheel. The drive wheel is rotatably connected to the mounting frame and is also connected to the output end of the clutch. When the drive wheel rotates, it can drive the grooved wheel to rotate intermittently. Each rotation of the grooved wheel can drive a mounting rod to rotate to the front.

[0013] Furthermore, a groove is provided on the upper right side of the mounting frame, and the groove corresponds to one of the baffles.

[0014] Furthermore, a driven gear is coaxially fixedly connected to one end of the active gear wheel, and a drive gear meshes with the rear side of the driven gear. The drive gear serves as the output end of the clutch and is rotatably connected to the inner wall of the mounting frame. An inner ratchet is coaxially fixedly connected to the inner side of the drive gear, and a rotating disk is provided inside the inner ratchet. Multiple elastic ratchet plates are fixedly connected to the circumferential surface of the rotating disk, and the outer ends of the elastic ratchet plates mesh with the inner ratchet. Under the meshing of the elastic ratchet plates and the inner ratchet, the drive gear can be driven to rotate in one direction.

[0015] Furthermore, the bracket includes a swing plate and a support plate fixedly connected to the front end of the swing plate. The inner end of the swing plate is fixedly connected to a mounting cylinder. The end of the mounting cylinder facing the rotating disk is provided with a first end face gear that can move axially. The handle is rotatably connected to the swing plate. When the handle swings up and down, it can form a structure in which the first end face gear moves back and forth axially. The surface of the rotating disk is fixedly connected with a second end face gear that can mesh with the first end face gear. When the first end face gear meshes with the second end face gear, the rotating disk can be driven to rotate by controlling the swing plate to swing up and down.

[0016] Furthermore, a connecting cylinder is coaxially fixedly connected to the surface of the first end face gear. The connecting cylinder is located inside the mounting cylinder. Limiting rods are fixedly connected to the surfaces of the first end face gears on the upper and lower sides of the connecting cylinder, and the limiting rods are slidably connected along the axial direction of the mounting cylinder.

[0017] A control rod is fixedly connected to the end of the handle facing the first end face gear. A mating pin is fixedly connected to the surface of the control rod. A guide groove is provided on the inner wall of the connecting cylinder. The mating pin slides in the guide groove. When the control rod rotates, the first end face gear can be driven to reciprocate along the axial direction of the control rod through the sliding contact between the mating pin and the guide groove.

[0018] Furthermore, the end of the handle that is rotatably connected to the swing plate has an arc-shaped structure. Two toothed grooves are opened on the circumferential surface of the arc-shaped structure. The two toothed grooves are distributed perpendicularly at ninety degrees. A limiting pawl that can swing back and forth is hinged to the swing surface on the rear side of the handle. The other end of the limiting pawl is engaged with one of the toothed grooves. A spring plate is provided on the rear side of the limiting pawl. One end of the spring plate is fixedly connected to the swing plate, and the other end is pressed against the rear surface of the limiting pawl.

[0019] Furthermore, the left and right ends of the cutting blade are respectively fixedly connected to connecting shafts, the other ends of the connecting shafts are respectively rotatably connected to the swing plate, a swing rod is fixedly connected to the surface of the connecting shaft corresponding to the handle, a hinge rod is hinged to the surface of the handle, and the other end of the hinge rod is hinged to the swing rod.

[0020] The cutting blade has serrated edges.

[0021] Furthermore, the front sides of the left and right ends of the mounting frame are respectively hinged with support rods that can swing up and down. The front ends of the two support rods are rotatably connected to a tension roller. An arc-shaped groove is opened on the front side of the surface of the swing plate. The arc-shaped groove is coaxial with the swing point of the support rod. A connecting pin is fixedly connected to the surface of the support rod. The other end of the connecting pin is slidably engaged with the arc-shaped groove.

[0022] Furthermore, a mounting plate is rotatably connected to one side of the soil covering wheel, a mounting screw is fixedly connected to the upper end of the mounting plate, the front end of the support plate is rotatably connected to the mounting screw, and a reinforcing nut is threadedly connected to the upper side of the mounting screw.

[0023] Each of the outer ends of the pressure rollers is rotatably connected to a connecting block. Connecting rods are fixedly connected to the front and rear sides of the upper end of the connecting block. The connecting rods are vertically slidably connected to the support plate. Top caps are fixedly connected to the upper ends of the connecting rods. Support springs are sleeved on the surface of the connecting rods. The support springs are located between the connecting block and the support plate.

[0024] The circumferential surface of the soil-covering wheel has multiple concave surfaces.

[0025] This invention features a novel structure, ingenious design, and simple and convenient operation, offering the following advantages compared to existing technologies:

[0026] 1. When in use, this device can be moved by the movement of agricultural machinery. During the movement of this device, the pressure roller can compact the plastic film on both sides. As the pressure roller compacts and rolls on the surface of the plastic film, it can continuously pull out and cover the land, thus covering the land surface with film. After covering, the soil covering rollers on both sides can cover the sides of the plastic film with soil, burying the sides of the plastic film and fixing the plastic film to prevent it from being blown away by the wind.

[0027] 2. After the mulching cylinder is used up, the positioner can be rotated intermittently by lifting the support to bring a new mulching cylinder to the front for use. When the support is lifted, the pressure roller and the soil covering roller will also be lifted simultaneously, making it easy to pull out the new mulch film for use. Repeating the above operation can easily complete the operation of lifting the pressure roller and the soil covering roller and replacing the mulching cylinder, reducing the number of steps for the operator to replace the mulching cylinder and making it more convenient for the operator to use. Attached Figure Description

[0028] Figure 1 This is a first schematic diagram of the overall structure of a mulching device for agricultural cultivation according to the present invention.

[0029] Figure 2 This is a second schematic diagram of the overall structure of a mulching device for agricultural cultivation according to the present invention.

[0030] Figure 3 This is a first exploded view of the transducer structure of a mulching device for agricultural cultivation according to the present invention.

[0031] Figure 4 This is a second exploded view of the transducer structure of a mulching device for agricultural cultivation according to the present invention.

[0032] Figure 5 This is a first schematic diagram of the clutch structure of a mulching device for agricultural cultivation according to the present invention.

[0033] Figure 6 This is a second schematic diagram of the clutch structure of a mulching device for agricultural cultivation according to the present invention.

[0034] Figure 7 This is a third schematic diagram of the clutch structure of a mulching device for agricultural cultivation according to the present invention.

[0035] Figure 8 This is a schematic diagram of the handle movement limiting structure of a mulching device for agricultural cultivation according to the present invention.

[0036] Figure 9 This is a schematic diagram of the support structure of a film covering device for agricultural cultivation according to the present invention.

[0037] Figure 10 This is a schematic diagram of the cutting blade structure of a mulching device for agricultural cultivation according to the present invention.

[0038] Figure 11 This is a schematic diagram of the tension roller structure of a mulching device for agricultural cultivation according to the present invention.

[0039] Figure 12 This is a schematic diagram of the transmission structure between the cutter and the handle of a mulching device for agricultural cultivation according to the present invention.

[0040] Figure 13 This is an exploded view of the connection relationship between the swing plate and the support rod of a mulching device for agricultural cultivation according to the present invention.

[0041] Figure 14 This is a schematic diagram of the pressure roller installation structure of a film covering device for agricultural cultivation according to the present invention.

[0042] Figure 15 For the present invention Figure 14 A schematic diagram of the structure at point A.

[0043] Numbering in the diagram: 1-Mounting frame, 2-Connecting bracket, 3-Rotating plate, 4-Mounting rod, 5-Baffle, 6-Connecting screw, 7-Gate wheel, 8-Driving wheel, 9-Driven gear, 10-Threaded hole, 11-Drive gear, 12-Internal ratchet, 13-Rotating disk, 14-Elastic ratchet plate, 15-Second end face gear, 16-First end face gear, 17-Limiting rod, 18-Connecting cylinder, 19-Guide groove, 20-Control rod, 21-Matching pin, 22- 23-Installation cylinder, 25-Swing plate, 26-Limiting claw, 27-Groove, 28-Spring plate, 29-Hinge rod, 30-Swing rod, 31-Cut blade, 32-Saw kerf, 33-Support rod, 34-Tension roller, 35-Arc groove, 36-Connecting pin, 37-Support plate, 38-Pressure roller, 39-Soil covering wheel, 40-Connecting block, 41-Connecting rod, 42-Supporting spring, 43-Top cap, 44-Reinforcing nut, 45-Electric telescopic rod. Detailed Implementation

[0044] The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0045] like Figure 1-15 As shown, this invention provides a mulching device for agricultural cultivation, including mulching cylinders, a mounting frame 1, and a shifter rotatably connected to the inner side of the mounting frame 1. The shifter can install multiple mulching cylinders. A support that can swing up and down is rotatably mounted on the left end of the mounting frame 1. A pressure roller 38 and a soil-covering roller 39 are respectively mounted on the front side of the support. In use, the mulch film on the surface of the mulching cylinder is pulled out and placed on the ground. Then, the support is controlled to flip downwards, placing the pressure rollers 38 on the left and right sides of the mulch film, and the soil-covering rollers 39 on both sides of the mulch film and placed in the loose soil. The soil-covering rollers 39 are in a state where the front side is tilted inwards. Electric push rods 45 are hinged to the left and right sides of the mounting frame 1, and the other end of the electric push rods 45 is... Do not hinge with the bracket. The bracket can be easily swung by controlling the extension and retraction of the electric push rod 45. The rear side of the mounting frame 1 is fixedly connected to the connecting frame 2, which is used to connect with agricultural machinery such as soil loosening trucks and tractors. The device moves with the movement of agricultural machinery. During the movement of this device, the pressure roller 38 can compact the plastic film on both sides. When the agricultural machinery moves, as the pressure roller 38 compacts and rolls on the surface of the plastic film, it can continuously pull out and cover the land, thus covering the land surface. After covering, the soil covering rollers 39 on both sides can cover the soil on both sides of the plastic film, burying the sides of the plastic film and fixing the plastic film to prevent it from being blown away by the wind.

[0046] Furthermore, a clutch is installed between the support and the positioner. The clutch controls the transmission and disconnection between the support and the positioner. When the drive structure is connected to the support and the positioner respectively, controlling the upward swing of the support can drive the positioner to rotate intermittently. When the mulch on the surface of a mulching cylinder is used up and the mulching cylinder needs to be replaced, the clutch can be controlled to drive the support and the positioner. Controlling the upward swing of the support can drive the positioner to rotate intermittently. Each time the positioner rotates intermittently, it can move a mulching cylinder to the front, thus achieving the effect of replacing the mulching cylinder. When the support swings upward, the pressure roller 38 and the mulching roller will swing upward synchronously to move away from the ground. At the same time, when the support swings upward, the positioner rotates intermittently once, and a new mulching cylinder is placed in front. Then the support swings downward again to press the pressure roller 38 onto both sides of the mulch. Through the above operation, after the mulching cylinder is used up, the operation of raising the pressure roller 38 and the mulching roller 39 and replacing the mulching cylinder can be easily completed, reducing the number of steps for the operator to replace the mulching cylinder and making it more convenient for the operator.

[0047] Furthermore, a cutting blade 31 capable of swinging inwards is rotatably connected to the front of the two supports. The drive structure includes a handle 28 capable of swinging back and forth, serving as the control end for the clutch. When the handle 28 swings forward, it drives the clutch to connect with the support, thus creating a structure where the cutting blade 31 swings inwards. During operation, the handle 28 can be used to change the position of the mulch film covering. When the mulch film is not yet used up, and a row of ridges has been covered, it is necessary to switch to another side for mulching. By controlling the handle 28 to swing to one side, the cutting blade 31 will swing inwards to cut the mulch film on the lower side. Then, swinging the handle 28 in the opposite direction will reset the position, thereby driving the cutting blade 31 to swing outwards to reset the position. When the mulch film in a mulching cylinder is used up, the handle 28 can also be controlled to swing to one side, which not only drives the cutting blade 31 to swing inwards to separate the remaining mulch film from the adhesive end of the mulching cylinder, but also drives the clutch to connect the support and the shifter, facilitating the lifting of the pressure roller 38 and the covering roller 39 and the replacement of a new mulching cylinder.

[0048] like Figure 3 The transducer includes a rotating plate 3 rotatably connected to the inner side of the mounting frame 1. Multiple mounting rods 4 arranged in a ring are evenly rotatably connected to the surface of the rotating plate 3. Each mounting rod 4 has a threaded hole 10 at its other end and a baffle 5 at its other end. A connecting screw 6 is fixedly connected to the middle of each baffle 5, and the baffle 5 is threadedly connected to the threaded hole 10 via the connecting screw 6. A coating cylinder is mounted onto the surface of the mounting rod 4 and threadedly connected to the threaded hole 10 via the connecting screw 6. The baffle 5 is installed at the other end of the mounting rod 4 to block the coating cylinder and prevent it from falling off. Furthermore, when replacing a new coating cylinder, it can be disassembled by rotating the baffle 5.

[0049] Furthermore, a grooved wheel 7 is coaxially fixedly connected to the left end of the mounting plate. A drive wheel 8 meshes with one side of the grooved wheel 7. The drive wheel 8 is rotatably connected to the mounting frame 1 and connected to the output end of the clutch. When the drive wheel 8 rotates, it can drive the grooved wheel 7 to rotate intermittently. Each rotation of the grooved wheel 7 can drive one mounting rod 4 to rotate to the front. The number of rotations of the mounting plate each time is related to the number of mounting rods 4. In this embodiment, there are six mounting rods 4, and the angle between two adjacent mounting rods 4 is sixty degrees. Therefore, the mechanism of the drive wheel 8 and the grooved wheel 7 is a sixty-degree grooved wheel mechanism. Each time the drive wheel 8 rotates, it can drive the grooved wheel 7 to rotate sixty degrees, so that each time the mounting plate rotates, it can drive a new coating cylinder to rotate to the front.

[0050] Furthermore, in order to facilitate the disassembly of used film-covering tubes and the replacement of new film-covering tubes, a groove is provided on the upper right side of the mounting frame 1, which corresponds to one of the baffles 5. When the film on the surface of a film-covering tube is used up, the used film-covering tube can be rotated to the position of the groove, making it convenient to rotate and disassemble the baffle 5 to replace the new film-covering tube.

[0051] like Figure 5 and Figure 6 As shown, a driven gear 9 is coaxially fixedly connected to one end of the driving gear 8. A driving gear 11 meshes with the rear side of the driven gear 9. The driving gear 11 serves as the output end of the clutch and is rotatably connected to the inner wall of the mounting frame 1. An inner ratchet 12 is coaxially fixedly connected to the inner side of the driving gear 11. A rotating disk 13 is provided on the inner side of the inner ratchet 12. Multiple elastic ratchet plates 14 are fixedly connected to the circumferential surface of the rotating disk 13. The elastic ratchet plates 14 are elastic and, through their own elasticity, allow the outer ends of the elastic ratchet plates 14 to mesh with the inner ratchet 12. Under the meshing of the elastic ratchet plates 14 and the inner ratchet 12, the driving gear 11 can be driven to rotate in one direction.

[0052] The bracket includes a swing plate 23 and a support plate 37 fixedly connected to the front end of the swing plate 23. The inner end of the swing plate 23 is fixedly connected to a mounting cylinder 22. The end of the mounting cylinder 22 facing the rotating disk 13 is provided with a first end face gear 16 that can move axially. The handle 28 is rotatably connected to the swing plate 23. When the handle 28 swings up and down, it can form a structure in which the first end face gear 16 moves back and forth axially. The surface of the rotating disk 13 is coaxially fixedly connected to a second end face gear 15 that can mesh with the first end face gear 16. When the handle 28 swings upward, it drives the first end face gear 16 and the second end face gear 15 to mesh and transmit power. When the first end face gear 16 and the second end face gear 15 mesh, the swing plate 23 can be controlled to swing up and down to drive the rotating disk 13 to rotate. When the swing plate 23 swings upward, it can drive the entire bracket to swing upward, thus forming a situation where the bracket swings upward and drives the rotating disk 13 to rotate. The drive gear 11 is driven to rotate in one direction through the meshing of the elastic ratchet plate 14 and the inner ratchet 12.

[0053] When the swing plate 23 swings downward, it drives the entire bracket to swing downward, thereby driving the rotating disk 13 to rotate in the opposite direction and reset. This causes the elastic ratchet plate 14 to continuously mesh inside the inner ratchet 12, but it does not drive the drive gear 11 to continue rotating. The number of teeth of the drive gear 11 is greater than that of the driven gear 9. When the drive gear 11 rotates 90 degrees, it can drive the driven gear 9 to rotate one revolution. Each time the bracket swings 90 degrees, it drives the drive gear 11 to rotate 90 degrees, thus creating the effect that when the bracket swings upward, it can drive the driven gear 9 to rotate one revolution. When the driven gear 9 rotates one revolution, it can drive the driving wheel 8 to rotate one revolution, thereby driving the grooved wheel 7 to rotate intermittently. Moreover, when the driving wheel 8 and the grooved wheel 7 mesh, they have a self-locking effect, which can ensure the stability of the positioner's rotation.

[0054] Furthermore, a connecting cylinder 18 is coaxially fixedly connected to the surface of the first end face gear 16. The connecting cylinder 18 is located inside the mounting cylinder 22. Limiting rods 17 are fixedly connected to the surfaces of the first end face gear 16 on the upper and lower sides of the connecting cylinder 18, respectively. The limiting rods 17 are slidably connected along the axial direction of the mounting cylinder 22, and the limiting rods 17 play a limiting role, so that the connecting cylinder 18 can move stably along the axial direction.

[0055] A control rod 20 is fixedly connected to one end of the handle 28 facing the first end face gear 16. A mating pin 21 is fixedly connected to the surface of the control rod 20. A guide groove 19 is provided on the inner wall of the connecting cylinder 18. The guide groove 19 has an inclined arc-shaped groove 35 structure. The mating pin 21 slides with the guide groove 19. When the control rod 20 rotates, the first end face gear 16 can be driven to reciprocate along the axial direction of the control rod 20 through the sliding engagement of the mating pin 21 and the guide groove 19. This facilitates the movement of the first end face gear 16 toward the second end face gear 15 and the engagement and transmission with the second end face gear 15, which facilitates the rotation of the bracket drive shifter.

[0056] Furthermore, to improve the stability of the handle 28, the end of the handle 28 that is rotatably connected to the swing plate 23 has an arc-shaped structure. Two toothed grooves 26 are formed on the circumferential surface of the arc-shaped structure, and the two toothed grooves 26 are distributed perpendicularly at ninety degrees. A limiting pawl 25 capable of swinging back and forth is hinged to the swing surface on the rear side of the handle 28. The other end of the limiting pawl 25 engages with one of the toothed grooves 26. A spring plate 27 is provided on the rear side of the limiting pawl 25. One end of the spring plate 27 is fixedly connected to the swing plate 23, and the other end presses against the rear of the limiting pawl 25. On the side surface, the limiting pawl 25 engages with the toothed groove 26 under the push of the spring plate 27. The upper ends of both sides of the toothed groove 26 are inclined outward. One end of the limiting pawl 25 engages with the toothed groove 26. When the handle 28 swings, the inclined structure of the inner wall of the toothed groove 26 can push the limiting pawl 25 to swing outward and press the spring plate 27, so that the limiting pawl 25 disengages from the toothed groove 26, making it convenient for the handle 28 to swing. When the handle 28 swings to the other end, the limiting pawl 25 re-engages with the toothed groove 26 under the push of the spring plate 27, thus limiting the movement of the handle 28.

[0057] Furthermore, such as Figure 9 and Figure 10 As shown, the left and right ends of the cutting blade 31 are respectively fixedly connected to connecting shafts, and the other ends of the connecting shafts are rotatably connected to the swing plate 23. A swing rod 30 is fixedly connected to the surface of the connecting shaft corresponding to the handle 28. A hinge rod 29 is hinged to the surface of the handle 28. The other end of the hinge rod 29 is hinged to the swing rod 30. When the handle 28 swings, the swing rod 30 can be driven to swing through the transmission of the hinge rod 29. When the swing rod 30 swings, it can drive the cutting blade 31 to swing inward. When the handle 28 swings in the opposite direction, it drives the cutting blade 31 to swing back to the other side. Furthermore, the cutting edge of the cutting blade 31 is provided with a serrated serration 32, so that the cutting edge of the cutting blade 31 has multiple tips. When the cutting blade 31 swings inward, the cutting edge with the serration 32 can more effectively break the plastic film, making it convenient for the operator to use.

[0058] Furthermore, the left and right ends of the mounting frame 1 are respectively hinged to support rods 33 that can swing up and down. A tension roller 34 is rotatably connected to the front end of each support rod 33. An arc-shaped groove 35 is formed on the front surface of the swing plate 23. The arc-shaped groove 35 is coaxial with the swing point of the support rod 33. A connecting pin 36 is fixedly connected to the surface of the support rod 33. The other end of the connecting pin 36 slides into the arc-shaped groove 35. The tension roller 34 is located above the mulch film. The pressure from the tension roller 34 keeps the ground flat during paving and ensures the tension of the mulch film during paving, preventing overall wrinkles after paving. The circumferential surface of the tension roller 34 has an arc-shaped structure, which makes the mulch film spread by the tension roller have an arc-shaped structure with a high middle and low sides. This is conducive to drainage when it rains and avoids water accumulation on the top of the mulch film, which would affect the growth of crops below the mulch film. In addition, with the sliding cooperation between the connecting pin 36 and the arc groove 35, the tension roller 34 can be lifted upward independently. When the tension roller 34 is lifted upward, the connecting pin 36 can slide inside the arc groove 35. When the support is lifted and the swing plate 23 swings upward, the connecting pin 36 can be supported by the arc groove 35 to make the support rod 33 swing upward, thereby driving the tension roller 34 to swing upward, which makes it convenient to adjust the mulch film laying position.

[0059] A mounting plate is rotatably connected to one side of the covering wheel 39, and a mounting screw is fixedly connected to the upper end of the mounting plate. The front end of the support plate 37 is rotatably connected to the mounting screw. A reinforcing nut 44 is threadedly connected to the upper side of the mounting screw. The covering wheel 39 can be fixed by the reinforcement of the reinforcing nut 44. When the reinforcing nut 44 is loosened, the angle of the covering wheel 39 can be adjusted. After adjustment, the reinforcing nut 44 can be rotated to fix it. The angle of the covering wheel 39 can be adjusted according to the operator's needs so that the covering wheel 39 can fully cover the soil onto the mulch film when it moves.

[0060] Furthermore, a connecting block 40 is rotatably connected to the outer end of the pressure roller 38. Connecting rods 41 are fixedly connected to the front and rear sides of the upper end of the connecting block 40, respectively. The connecting rods 41 are vertically slidably connected to the support plate 37. A top cap 43 is fixedly connected to the upper end of each connecting rod 41. Support springs 42 are respectively sleeved on the surface of the connecting rods 41, located between the connecting block 40 and the support plate 37. Under the sliding connection between the connecting rods 41 and the support plate 37, the pressure roller 38 can move up and down. Furthermore, under the push of the support springs 42, the pressure roller 38 can be adjusted according to the flatness of the land. Under the pressure of 2, the pressure roller 38 can stably press against the surface of the mulch film to compact it. Furthermore, the circumferential surface of the covering roller 39 is provided with multiple concave surfaces, and a protrusion is formed between two adjacent concave surfaces. The protrusion on the circumferential surface of the covering roller 39 can help the covering roller 39 penetrate into the soil, making it convenient to push some soil onto the mulch film to cover it when the device moves. Moreover, the height of the covering roller 39 is lower than the height of the pressure roller 38, so that when the pressure roller 38 moves on the surface of the mulch film, the lower side of the covering roller 39 is in the soil, which makes it convenient to place the soil on the mulch film for covering and ensures the covering effect.

[0061] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains can make various modifications or additions to the described specific embodiments or use similar methods to replace them.

Claims

1. A film-covering device for agricultural cultivation, comprising a film-covering cylinder, characterized in that, It also includes an installation frame (1) and a transducer rotatably connected to the inside of the installation frame (1). The transducer can install multiple film covering cylinders. The left end of the installation frame (1) has a support that can swing up and down. The front side of the support is equipped with a pressure roller (38) and a soil covering roller (39). A clutch is installed between the bracket and the transducer. The clutch can control the transmission and disconnection between the bracket and the transducer. When the drive structure is connected to the bracket and the transducer respectively, the transducer can be driven to rotate intermittently by controlling the bracket to swing upward. Each time the transducer rotates intermittently, a coating cylinder can be moved to the front side. The front side of the two brackets is rotatably connected to a cutting blade (31) that can swing inward. The drive structure includes a handle (28) that can swing back and forth, which serves as the control end of the clutch. When the handle (28) swings forward, it drives the clutch to connect with the bracket for transmission, thus forming a structure in which the cutting blade (31) swings inward. The transducer includes a rotating plate (3) rotatably connected to the inner side of the mounting frame (1). Multiple mounting rods (4) are evenly rotatably connected to the surface of the rotating plate (3) in a ring distribution. The other end of the mounting rods (4) is provided with threaded holes (10). The other end of the mounting rods (4) is provided with baffles (5). The middle part of the baffles (5) is fixedly connected with connecting screws (6). The baffles (5) are threadedly connected to the threaded holes (10) through the connecting screws (6). A grooved wheel (7) is coaxially fixed to the left end of the mounting plate. An active dial wheel (8) is engaged on one side of the grooved wheel (7). The active dial wheel (8) is rotatably connected to the mounting frame (1) and connected to the output end of the clutch. When the active dial wheel (8) rotates, it can drive the grooved wheel (7) to rotate intermittently. Each rotation of the grooved wheel (7) can drive a mounting rod (4) to rotate to the front. One end of the active dial (8) is coaxially fixedly connected to a driven gear (9), and a drive gear (11) meshes with the rear side of the driven gear (9). The drive gear (11) serves as the output end of the clutch and is rotatably connected to the inner wall of the mounting frame (1). An inner ratchet (12) is coaxially fixedly connected to the inner side of the drive gear (11). A rotating disk (13) is provided on the inner side of the inner ratchet (12). Multiple elastic ratchet plates (14) are fixedly connected to the circumferential surface of the rotating disk (13). The outer ends of the elastic ratchet plates (14) mesh with the inner ratchet (12). Under the meshing of the elastic ratchet plates (14) and the inner ratchet (12), the drive gear (11) can be driven to rotate in one direction. The bracket includes a swing plate (23) and a support plate (37) fixedly connected to the front end of the swing plate (23). The inner end of the swing plate (23) is fixedly connected to a mounting cylinder (22). The mounting cylinder (22) facing the rotating disk (13) is provided with a first end face gear (16) that can move along the axial direction. The handle (28) is rotatably connected to the swing plate (23). When the handle (28) swings up and down, it can form a structure in which the first end face gear (16) moves back and forth along the axial direction. The surface of the rotating disk (13) is fixedly connected with a second end face gear (15) that can mesh with the first end face gear (16). When the first end face gear (16) meshes with the second end face gear (15), the rotating disk (13) can be driven to rotate by controlling the swing plate (23) to swing up and down.

2. The mulching equipment for agricultural cultivation as described in claim 1, characterized in that: The mounting frame (1) has a groove on the upper right side facing downwards, and the groove corresponds to one of the baffles (5).

3. The mulching equipment for agricultural cultivation as described in claim 1, characterized in that: A connecting cylinder (18) is fixedly connected coaxially to the surface of the first end face gear (16). The connecting cylinder (18) is located inside the mounting cylinder (22). Limiting rods (17) are fixedly connected to the surfaces of the first end face gear (16) on the upper and lower sides of the connecting cylinder (18). The limiting rods (17) are slidably connected along the axial direction of the mounting cylinder (22). A control rod (20) is fixedly connected to one end of the handle (28) facing the first end face gear (16). A mating pin (21) is fixedly connected to the surface of the control rod (20). A guide groove (19) is provided on the inner wall of the connecting cylinder (18). The mating pin (21) and the guide groove (19) are slidably engaged. When the control rod (20) rotates, the first end face gear (16) can be driven to reciprocate along the axial direction of the control rod (20) through the sliding engagement of the mating pin (21) and the guide groove (19).

4. The mulching equipment for agricultural cultivation as described in claim 1, characterized in that: The handle (28) is rotatably connected to the swing plate (23) at one end, which has an arc-shaped structure. Two toothed grooves (26) are opened on the circumferential surface of the arc-shaped structure. The two toothed grooves (26) are distributed at a 90-degree angle. A limiting claw (25) that can swing back and forth is hinged to the swing surface of the handle (28). The other end of the limiting claw (25) is engaged with one of the toothed grooves (26). A spring plate (27) is provided on the rear side of the limiting claw (25). One end of the spring plate (27) is fixedly connected to the swing plate (23), and the other end is pressed against the rear surface of the limiting claw (25).

5. The mulching equipment for agricultural cultivation as described in claim 1, characterized in that: The cutting blade (31) is fixedly connected to the left and right ends of the blade, and the other end of the blade is rotatably connected to the swing plate (23). A swing rod (30) is fixedly connected to the surface of the blade corresponding to the handle (28). A hinge rod (29) is hinged to the surface of the handle (28). The other end of the hinge rod (29) is hinged to the swing rod (30). The cutting blade (31) has a serrated cut (32) at its cutting edge.

6. The mulching equipment for agricultural cultivation as described in claim 1, characterized in that: The mounting frame (1) has support rods (33) that can swing up and down respectively hinged to the front sides of the left and right ends. The front ends of the two support rods (33) are rotatably connected to a tension roller (34). The front side of the surface of the swing plate (23) is provided with an arc groove (35). The arc groove (35) is coaxial with the swing point of the support rod (33). A connecting pin (36) is fixedly connected to the surface of the support rod (33). The other end of the connecting pin (36) is slidably engaged with the arc groove (35).

7. A mulching device for agricultural cultivation as described in claim 1, characterized in that: A mounting plate is rotatably connected to one side of the soil covering wheel (39), and a mounting screw is fixedly connected to the upper end of the mounting plate. The front end of the support plate (37) is rotatably connected to the mounting screw, and a reinforcing nut (44) is threadedly connected to the upper side of the mounting screw. A connecting block (40) is rotatably connected to the outer end of the pressure roller (38). A connecting rod (41) is fixedly connected to the front and rear sides of the upper end of the connecting block (40). The connecting rod (41) is vertically slidably connected to the support plate (37). A top cap (43) is fixedly connected to the upper end of the connecting rod (41). A support spring (42) is sleeved on the surface of the connecting rod (41). The support spring (42) is located between the connecting block (40) and the support plate (37). Multiple concave surfaces are provided on the circumferential surface of the soil covering wheel (39).

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