An automatic film covering device for flower cultivation
By designing an automatic mulch covering device, a ground crack is drawn in the soil using a rotating wheel and a cutting blade. Combined with the driving mechanism of the movable rod and side plate, the edge of the mulch film is inserted into the ground crack. This solves the problems of complex structure and low efficiency of existing mulch covering devices, and achieves efficient and stable mulch film covering.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING ACADEMY OF FORESTRY SCI
- Filing Date
- 2025-04-02
- Publication Date
- 2026-06-30
AI Technical Summary
Existing mulch covering devices have complex structures. During the mulching process, the soil needs to be crushed, dried, and transported to both sides of the mulch film for compaction. The process is cumbersome and inefficient.
An automatic mulching device was designed, including a frame, rotating wheels, a cutting knife, a movable rod, and side plates. The movable rod and side plates are driven up and down by a drive mechanism to insert the edge of the mulch film into the cut slits. The curved side plates and rubber coating enhance the covering stability of the mulch film, and the pressure rollers ensure that the mulch film adheres tightly to the soil, simplifying the mulching process.
It improves the efficiency of film covering, simplifies the operation steps, enhances the stability and tightness of film covering, and reduces the complexity of operation.
Smart Images

Figure CN120304226B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of film covering equipment, and specifically relates to an automatic film covering device for flower cultivation. Background Technology
[0002] Mulching refers to the practice of covering the soil surface with a plastic film. It reduces raindrop impact, prevents erosion and crust formation, effectively reduces soil moisture evaporation, conserves moisture during droughts and improves moisture levels after rain, promotes crop water absorption and growth, and enhances soil water use efficiency. It also helps maintain suitable soil temperature and humidity, slows down soil temperature drop, and prolongs the duration of temperature decline, facilitating fertilizer decomposition and improving soil fertility. Mulching is low-cost, easy to use, and significantly increases crop yield, making it a commonly used measure to prevent soil erosion and improve crop yield. In floriculture, mulching technology is widely used due to its significant effects in heat preservation, moisture retention, weed control, and pest prevention.
[0003] Chinese invention patent CN117694161B discloses a soil mulching device and method for saline-alkali land, including a machine body and a film feeding structure disposed at the top of one end of the machine body; a mounting frame, with a lifting component disposed at the midpoint between the top of the mounting frame and the top of the machine body; a soil feeding structure, which is fixedly installed at one end of the mounting frame; a crushing component, which is disposed at the bottom of the middle position of the soil feeding structure; and a discharge component, which is disposed at the bottom middle position of the crushing component. This invention utilizes side compaction plates to compact the soil covering the sides of the mulch film, forming the side compaction performance of the mulch film, making the entire side compaction structure relatively simple. A groove block presses out a recessed area on the already mulched ridge, allowing the dried and crushed soil to fall into the recessed area, forming the top compaction performance of the mulch film, ensuring the stability of the top of the mulch film and avoiding bulging problems. However, this device has a complex structure, requiring the soil to be crushed and dried before being transported to both sides of the mulch film and compacted, making the process cumbersome and inefficient. Therefore, we propose an automatic film covering device for flower cultivation to solve the above problems. Summary of the Invention
[0004] The purpose of this invention is to solve the problems of existing mulching devices having complex structures, requiring soil to be crushed and dried before being transported to both sides of the mulch film and compacted, which is a cumbersome and inefficient process.
[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:
[0006] An automatic film covering device for flower cultivation includes a frame. Two first legs and two second legs are fixedly mounted at the left and right ends of the frame, respectively. A rotating wheel is rotatably mounted on each of the two first legs, and a drive wheel is rotatably mounted on each of the two second legs. A fixed arm and a movable arm are fixedly mounted on the frame near the two second legs, and a roll of mulch film is rotatably mounted between the fixed arm and the movable arm. Two bending rods are fixedly mounted at the lower end of the frame, located between the fixed arm, the movable arm, and the two second legs. A cutting blade is fixedly mounted at the lower end of the two bending rods. A fixed frame is fixedly mounted on the frame near the first legs, and a limit frame is fixedly mounted at the end of the fixed frame. A movable rod is movably inserted into the limit frame, and a side plate is fixedly mounted at the lower end of the movable rod. A drive mechanism is provided on the rotating wheels to drive the movable rod to move up and down.
[0007] Further specifying, the driving mechanism includes a fixed column and a connecting rod. The fixed column is fixedly installed on the side of the rotating wheel away from the center. The connecting rod is rotatably installed at the end of the fixed column. An insert post is fixedly installed at the upper end of the movable rod. The end of the connecting rod away from the fixed column is rotatably connected to the insert post. With this structural design, when the rotating wheel rotates, the fixed column makes an eccentric movement, which can drive the movable rod and the side plate to move up and down through the connecting rod, allowing the edge of the mulch film to be inserted into the cut ground seam.
[0008] Furthermore, both the cutting blade and the movable rod are inclined at the same angle. This structural design ensures that the cuts made by the cutting blade are angled, and the side plate at the end of the movable rod bears some of the soil pressure when inserting the edge of the mulch film into the crack, thus making the mulch film coverage more stable.
[0009] Furthermore, a limiting block is fixedly installed at the end of the insertion post, and a return spring is sleeved on the insertion post between the limiting block and the adapter rod. With this structural design, when the adapter rod drives the movable rod to tilt downwards, the adapter rod slides on the insertion post, and the return spring can return it to its initial state when the movable rod moves upwards.
[0010] Further specifying, the side plate has an installation groove, within which a V-shaped bending plate is installed. The V-shaped bending plate includes a rotating plate, an elastic connecting plate, and a movable plate. The elastic connecting plate is fixedly connected between the rotating plate and the movable plate. The rotating plate is rotatably installed within the installation groove. A pull rope is fixedly connected to the movable plate. A movable slot is provided on the movable rod, within which a locking block is movably engaged. The end of the locking block extends out of the movable slot. The pull rope passes through the side plate and the movable rod to the movable slot and is fixedly connected to the locking block. A spring clip is fixedly installed between the locking block and the installation groove. With this structural design, when the side plate moves to its lowest point, the locking block abuts against the fixed frame and is moved. The pull rope causes the V-shaped bending plate to bend, thereby lifting the edge of the mulch film upwards and pushing it into the soil, preventing the mulch film from being pulled out when the side plate is removed.
[0011] Further specifying, an mounting plate is fixedly installed on the frame, a movable frame is movably installed below the mounting plate, a pressure roller is rotatably installed below the movable frame, and multiple limiting rods are fixedly installed on the movable frame. The upper ends of the multiple limiting rods penetrate the mounting plate and are fixedly installed with top limiting blocks. Compression springs are sleeved on the multiple limiting rods between the mounting plate and the movable frame. With this structural design, the movable frame, under the action of the compression springs and limiting rods, will bring the pressure roller close to the ground, thereby ensuring that the mulch film adheres tightly to the soil and completes the covering smoothly.
[0012] Furthermore, the lower end of the side plate has an arc-shaped structure, and the arc-shaped surface is coated with a rubber coating. This structural design allows the arc-shaped structure to prevent the mulch film from being torn, and the rubber coating on the arc-shaped surface to increase the friction between the lower end of the side plate and the mulch film, so that the side plate can smoothly carry the mulch film into the cut ground joint when it moves downward.
[0013] Further specifying, a fixed base is fixedly installed on the frame near the second support leg, a drive motor is fixedly installed on the fixed base, a rotating shaft is fixedly installed on the output shaft of the drive motor, an adapter post is fixedly installed on the second support leg, the rotating shaft is rotatably connected to the adapter post, a first bevel gear is fixedly installed at the lower end of the rotating shaft, a second bevel gear is provided on the drive wheel to mesh with the first bevel gear, the first and second bevel gears are protected by protective covers, and a battery and controller electrically connected to the drive motor are provided on the frame. This structural design is simple and easy to use.
[0014] Further specifying, the movable arm includes a fixed cylinder and an L-shaped movable column. The end of the L-shaped movable column is provided with an insert that mates with the fixed cylinder. The fixed cylinder is provided with a threaded seat, and a locking bolt is threaded onto the threaded seat. The end of the locking bolt penetrates into the fixed cylinder and abuts against the insert. This structural design allows for easy disassembly of the L-shaped movable column via the locking bolt, facilitating the replacement of the mulch film roll between the movable arm and the fixed arm.
[0015] The invention employing the above technical solution has the following advantages:
[0016] In this invention, when the drive wheel and rotating wheel move the frame, the cutting blade will cut a slit in the ground. The rolling of the mulch film can cover the planting area. As the mulch film covering device moves, the drive mechanism can move the movable rod and side plate up and down, which can insert the edge of the mulch film into the slit, making it easy to position the mulch film. The structure is simple, easy to use, and improves the efficiency of mulch film covering. Attached Figure Description
[0017] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;
[0018] Figure 1 This is a schematic diagram of the structure of an automatic film covering device for flower cultivation according to the present invention;
[0019] Figure 2 This is a schematic diagram of the structure of an automatic film covering device for flower cultivation according to the present invention from another angle;
[0020] Figure 3 for Figure 2 Enlarged structural diagram at point A;
[0021] Figure 4 This is a schematic diagram of the mounting plate portion in an automatic film covering device for flower cultivation according to the present invention;
[0022] Figure 5 This is a schematic diagram of the rotating wheel part in an automatic film covering device for flower cultivation according to the present invention;
[0023] Figure 6 This is a cross-sectional view of the side plate portion of an automatic film covering device for flower cultivation according to the present invention.
[0024] Figure 7 for Figure 6 Enlarged structural diagram at point B;
[0025] Figure 8 for Figure 6 A magnified structural diagram at point C.
[0026] The symbols for the main components are explained below:
[0027] 1. Frame; 11. Rotating wheel; 12. Drive wheel; 13. Fixed cylinder; 14. L-shaped movable column; 15. Locking bolt;
[0028] 2. Mulch film rolls;
[0029] 3. Bending rod; 31. Cutting knife;
[0030] 4. Fixing frame; 41. Limiting frame;
[0031] 42. Movable lever; 421. Movable slot; 422. Locking block; 423. Spring clip;
[0032] 43. Side panel; 431. Mounting groove; 432. V-shaped bend plate; 433. Pull rope;
[0033] 5. Fixed post; 51. Adapter rod; 52. Limiting block; 53. Return spring;
[0034] 6. Mounting plate; 61. Movable frame; 62. Pressure roller; 63. Limiting rod; 64. Compression spring;
[0035] 7. Drive motor; 71. Rotating shaft; 72. Protective cover. Detailed Implementation
[0036] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.
[0037] like Figures 1 to 8As shown, an automatic film covering device for flower cultivation according to the present invention includes a frame 1. Two first legs and two second legs are fixedly installed at the left and right ends of the frame 1, respectively. A rotating wheel 11 is rotatably mounted on each of the two first legs, and a drive wheel 12 is rotatably mounted on each of the two second legs. A fixed arm and a movable arm are fixedly installed on the frame 1 near the two second legs, and a film roll 2 is rotatably mounted between the fixed arm and the movable arm. Two bending rods 3 are fixedly installed at the lower end of the frame 1, located between the fixed arm, the movable arm, and the two second legs. A cutting blade 31 is fixedly installed at the lower end of the two bending rods 3. A fixing frame 4 is fixedly installed on the frame 1 near the first legs, and a limiting device is fixedly installed at the end of the fixing frame 4. The positioning frame 41 has a movable rod 42 movably inserted into it. A side plate 43 is fixedly installed at the lower end of the movable rod 42. The lower end of the side plate 43 has an arc-shaped structure and is coated with a rubber coating. The arc-shaped structure can reduce the probability of the mulch film being scratched by the side plate 43. The rubber coating can increase the friction between the lower end of the side plate 43 and the mulch film, so as to smoothly send the mulch film into the ground crack. The cutting knife 31 and the movable rod 42 are both inclined at the same angle. The lower ends of the two cutting knives 31 and the movable rod 42 are inclined towards each other. When the movable rod 42 drives the side plate 43 to move down, the side plate 43 will extend into the ground crack cut by the cutting knife 31. The rotating wheel 11 is equipped with a drive mechanism that can drive the movable rod 42 to move up and down.
[0038] The drive mechanism includes a fixed column 5 and a connecting rod 51. The fixed column 5 is fixedly installed on the side of the rotating wheel 11 away from the center. The connecting rod 51 is rotatably installed at the end of the fixed column 5. A plug is fixedly installed at the upper end of the movable rod 42. The end of the connecting rod 51 away from the fixed column 5 is rotatably connected to the plug. A limit block 52 is fixedly installed at the end of the plug. A return spring 53 is sleeved on the plug between the limit block 52 and the connecting rod 51.
[0039] A mounting groove 431 is provided on the side plate 43. A V-shaped bending plate 432 is provided in the mounting groove 431. The V-shaped bending plate 432 includes a rotating plate, an elastic connecting plate, and a movable plate. The elastic connecting plate is fixedly connected between the rotating plate and the movable plate. The rotating plate is rotatably installed in the mounting groove 431. A pull rope 433 is fixedly connected to the movable plate. When the pull rope 433 pulls the movable plate, the elastic connecting plate bends, the V-shaped bending plate 432 deforms, and protrudes outward under the restriction of the mounting groove 431, which can further push the mulch film into the soil and improve the positioning effect of the mulch film. A movable slot 421 is provided on the movable rod 42. A locking block 422 is movably engaged in the movable slot 421. The end of the locking block 422 extends out of the movable slot 421. The pull rope 433 passes through the side plate 43 and the movable rod 42 to the movable slot 421 and is fixedly connected to the locking block 422. A spring piece 423 is fixedly installed between the locking block 422 and the mounting groove 431.
[0040] A mounting plate 6 is fixedly installed on the frame 1. A movable frame 61 is movably installed below the mounting plate 6. A pressure roller 62 is rotatably installed below the movable frame 61. Multiple limit rods 63 are fixedly installed on the movable frame 61. The upper ends of the multiple limit rods 63 pass through the mounting plate 6 and are fixedly installed with top limiting blocks. Compression springs 64 are sleeved on the multiple limit rods 63 between the mounting plate 6 and the movable frame 61.
[0041] A mounting base is fixedly installed on the frame 1 near the second leg. A drive motor 7 is fixedly installed on the mounting base. A rotating shaft 71 is fixedly installed on the output shaft of the drive motor 7. An adapter post is fixedly installed on the second leg. The rotating shaft 71 is rotatably connected to the adapter post. A first bevel gear is fixedly installed at the lower end of the rotating shaft 71. A second bevel gear that meshes with the first bevel gear is provided on the drive wheel 12. A protective cover 72 is provided outside the first bevel gear and the second bevel gear. A battery and a controller that are electrically connected to the drive motor 7 are provided on the frame 1.
[0042] The movable arm includes a fixed cylinder 13 and an L-shaped movable column 14. The end of the L-shaped movable column 14 is provided with an insert that is compatible with the fixed cylinder 13. The fixed cylinder 13 is provided with a threaded seat, and a locking bolt 15 is threadedly connected to the threaded seat. The end of the locking bolt 15 passes through the fixed cylinder 13 and abuts against the insert. The lower end of the L-shaped movable column 14 is rotatably connected to the shaft of the mulch roll 2. The locking bolt 15 facilitates the disassembly of the L-shaped movable column 14, so as to facilitate the assembly and disassembly of the mulch roll 2.
[0043] The method of using this invention is as follows:
[0044] In use, the frame 1 is positioned above the flower planting area, with the drive wheel 12 and rotating wheel 11 located in the furrow. The mulch film roll 2 is pulled, and one end of the mulch film roll 2 is fixed so that it is close to the ground. The drive motor 7 drives the drive wheel 12 to rotate through the rotating shaft 71, which can drive the frame to move in the planting area. At this time, the movable frame 61, under the elastic force of the compression spring 64, can press down the mulch film roll 2 through the pressure roller 62 so that the mulch film roll 2 is close to the soil. As the mulch film covering device moves, the mulch film is covered to the ground.
[0045] When the frame 1 moves, the cutting blade 31 will cut two seams in the ground. When the rotating wheel 11 rotates in the furrow, the fixed column 5 will make an eccentric movement. The connecting rod 51 can drive the movable rod 42 to move up and down under the limiting action of the limiting frame 41. When the movable rod 42 and the side plate 43 move downward, the arc-shaped surface at the lower end of the side plate 43 will contact the mulch film and bring the mulch film into the seam. When the side plate 43 moves to the bottom, the limiting frame 41 will move the locking block 422. The locking block 422 will pull the V-shaped bending plate 432 to deform through the pull rope 433. When the V-shaped bending plate 432 protrudes, it will push the mulch film into the soil on the side of the seam, which can enhance the stability of the mulch film coverage. When the movable rod 42 moves upward, the V-shaped bending plate 432 will return to its original shape, which can ensure that the side plate 43 will not lift the mulch film when it moves upward.
[0046] Once the edge of the plastic film is inserted into the crack, the rotating wheel 11 rolls over the crack, compressing the soil and making it more compact, thus enhancing the wind resistance of the plastic film's sides.
[0047] The above provides a detailed description of an automatic film-covering device for flower cultivation provided by the present invention. The specific embodiments are described only to aid in understanding the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.
Claims
1. An automatic mulching device for flower cultivation, comprising a frame (1), two first supporting legs and two second supporting legs are fixedly installed at the left and right ends of the frame (1) respectively, a rotating wheel (11) is rotatably installed on each of the two first supporting legs, a driving wheel (12) is rotatably installed on each of the two second supporting legs, a fixed arm and a movable arm are fixedly installed on the frame (1) near the two second supporting legs, and a mulch roll (2) is rotatably installed between the fixed arm and the movable arm, characterized in that: Two bent rods (3) are fixedly installed at the lower end of the frame (1). The two bent rods (3) are located between the fixed arm, the movable arm and the two second legs. A cutting knife (31) is fixedly installed at the lower end of the two bent rods (3). A fixed frame (4) is fixedly installed near the first leg of the frame (1). A limit frame (41) is fixedly installed at the end of the fixed frame (4). A movable rod (42) is movably inserted into the limit frame (41). A side plate is fixedly installed at the lower end of the movable rod (42). (43) The rotating wheel (11) is provided with a driving mechanism that can drive the movable rod (42) to move up and down; the driving mechanism includes a fixed column (5) and a connecting rod (51). The fixed column (5) is fixedly installed on the side of the rotating wheel (11) away from the center. The connecting rod (51) is rotatably installed at the end of the fixed column (5). The upper end of the movable rod (42) is fixedly installed with a plug. The end of the connecting rod (51) away from the fixed column (5) is rotatably connected to the plug. The end of the plug is fixedly installed with a fixed rod. A limiting block (52) is fixedly installed, and a return spring (53) is sleeved on the insert between the limiting block (52) and the adapter rod (51); an installation groove (431) is opened on the side plate (43), and a V-shaped bending plate (432) is provided in the installation groove (431). The V-shaped bending plate (432) includes a rotating plate, an elastic connecting plate, and a movable plate. The elastic connecting plate is fixedly connected between the rotating plate and the movable plate. The rotating plate is rotatably installed in the installation groove (431), and the movable plate is rotatably installed in the installation groove (431). A pull rope (433) is fixedly connected to the plate. A movable slot (421) is provided on the movable rod (42). A locking block (422) is movably engaged in the movable slot (421). The end of the locking block (422) extends out of the movable slot (421). The pull rope (433) passes through the side plate (43) and the movable rod (42) to the movable slot (421) and is fixedly connected to the locking block (422). A spring piece (423) is fixedly installed between the locking block (422) and the mounting groove (431).
2. The automatic mulching device for flower cultivation according to claim 1, characterized in that: The cutting blade (31) and the movable rod (42) are both inclined and have the same inclination angle.
3. The automatic film covering device for flower cultivation according to claim 1, characterized in that: A mounting plate (6) is fixedly installed on the frame (1). A movable frame (61) is movably installed below the mounting plate (6). A pressure roller (62) is rotatably installed below the movable frame (61). Multiple limiting rods (63) are fixedly installed on the movable frame (61). The upper ends of the multiple limiting rods (63) penetrate the mounting plate (6) and are fixedly installed with top limiting blocks. A compression spring (64) is sleeved on the multiple limiting rods (63) between the mounting plate (6) and the movable frame (61).
4. The automatic film covering device for flower cultivation according to claim 1, characterized in that: The lower end of the side plate (43) is an arc-shaped structure, and the arc-shaped surface is coated with a rubber coating.
5. The automatic film covering device for flower cultivation according to claim 1, characterized in that: A fixed base is fixedly installed on the frame (1) near the second support leg. A drive motor (7) is fixedly installed on the fixed base. A rotating shaft (71) is fixedly installed on the output shaft of the drive motor (7). An adapter column is fixedly installed on the second support leg. The rotating shaft (71) is rotatably connected to the adapter column. A first bevel gear is fixedly installed at the lower end of the rotating shaft (71). A second bevel gear that meshes with the first bevel gear is provided on the drive wheel (12). A protective cover (72) is provided outside the first bevel gear and the second bevel gear. A battery and a controller that are electrically connected to the drive motor (7) are provided on the frame (1).
6. The automatic film covering device for flower cultivation according to claim 1, characterized in that: The movable arm includes a fixed cylinder (13) and an L-shaped movable column (14). The end of the L-shaped movable column (14) is provided with an insert that is adapted to the fixed cylinder (13). The fixed cylinder (13) is provided with a threaded seat. A locking bolt (15) is threadedly connected to the threaded seat. The end of the locking bolt (15) penetrates into the fixed cylinder (13) and abuts against the insert.