Crop film mulching device

Abstract

The utility model discloses a crop film mulching device, which belongs to the technical field of crop film mulching and comprises a rack, and a front wheel, a ditching cutter, a film pressing wheel and a soil covering shovel are connected and mounted on the lower portion of the rack. A film roll supporting seat is mounted on the rack; the lower part of the rack is rotationally connected with compression roller connecting frames and a compression roller adjusting rod with adjustable length, the compression roller adjusting rod is rotationally connected with the compression roller connecting frames, a compression roller is rotationally arranged between the two compression roller connecting frames, the two compression roller connecting frames are rotationally connected with a film laminating roller connecting frame, and a film laminating roller is rotationally arranged between the two film laminating roller connecting frames. Rolling support is provided through the front wheel and the film pressing wheel, ditching is conducted through the ditching cutter, leveling is conducted through the pressing roller, a mulching film is pressed on the field under the dead weight of the film covering roller, the two sides of the mulching film are pressed into grooves through the film pressing wheel, soil covering is conducted through the soil covering shovel, and efficient integrated crop film covering operation is achieved. The film covering device is simple in structure and convenient to use, effectively avoids the phenomena of film wrinkling, damage and the like caused by uneven fields, effectively guarantees reliable covering of the two sides of a film, and is good in practicability.

Description

Technical Field

[0001] This utility model belongs to the field of crop mulching technology, specifically a crop mulching device. Background Technology

[0002] Crop mulching technology, as an important method in modern agricultural production, has been widely used. By precisely covering the soil surface with mulch film, a microenvironment conducive to crop growth can be created, specifically in the following key aspects:

[0003] Firstly, it effectively retains soil moisture. The mulch acts as a barrier, significantly reducing the evaporation loss of soil moisture, allowing the soil to maintain a suitable humidity level for crop growth for a long time.

[0004] Secondly, it raises soil temperature. Mulch can absorb and store solar radiation heat, thereby raising soil temperature and creating more favorable temperature conditions for crop seed germination and root growth.

[0005] Third, it inhibits weed growth. After the mulch is applied, it blocks sunlight from reaching the weeds, inhibiting their photosynthesis and thus effectively curbing their growth. This reduces the competition between weeds and crops for nutrients, water, and sunlight, lowers the amount of herbicides used, and is conducive to achieving green and environmentally friendly agricultural production.

[0006] Fourth, it improves soil structure. Mulching reduces direct rainwater erosion of the soil, prevents soil compaction, maintains soil looseness, and facilitates the exchange of air and moisture in the soil, providing a good soil environment for crop root growth.

[0007] In practical applications, traditional crop mulching devices frequently experience wrinkling of the mulch film. This is due to uneven tension on different parts of the film during unwinding, which causes wrinkling. Uneven ground in the field also exacerbates the wrinkling problem. When the mulch film passes over raised or recessed surfaces, it cannot adhere smoothly, resulting in wrinkles. In severe cases, this can cause damage to the mulch film, affecting the overall mulching effect. Utility Model Content

[0008] To address the problem that traditional crop mulching devices frequently wrinkle and damage the mulch film during practical application, this invention provides a crop mulching device.

[0009] This utility model is achieved through the following technical solution:

[0010] A crop mulching device includes a frame. A pair of front wheels, a trenching knife, a film pressing wheel, and a soil covering shovel are connected and installed at the lower part of the frame. The trenching knife and the film pressing wheel are positioned correspondingly, and the soil covering shovel is located on the outer rear side of the film pressing wheel. A film roll support seat capable of rotating the film roll is installed on the frame. A pair of pressure roller connecting frames and an adjustable-length pressure roller adjusting rod are rotatably connected and installed at the lower part of the frame. The lower end of the pressure roller adjusting rod is rotatably connected to the pressure roller connecting frame. A pressure roller is rotatably installed between the lower ends of the two pressure roller connecting frames. A mulching roller connecting frame is also rotatably connected and installed on each of the two pressure roller connecting frames. A mulching roller is rotatably installed between the two mulching roller connecting frames. The mulching roller is located behind the pressure roller and in front of the film pressing wheel.

[0011] A further improvement of this utility model is that the film roll support is provided with an upper opening mounting groove, and a rotating shaft that is inserted into the mounting groove to rotate the film roll is fitted in the mounting groove, with nuts screwed to both ends of the rotating shaft.

[0012] A further improvement of this utility model is that a support frame is connected and installed on the pressure roller connecting frame, and an elastic pull member capable of elastically pulling the coating roller upward is connected between the support frame and the coating roller connecting frame.

[0013] A further improvement of this utility model is that the elastic tension member is an elastic rope.

[0014] A further improvement of this utility model is that the pressure roller adjusting rod has a two-section structure, which is rotatably connected to the machine frame and the pressure roller connecting frame respectively. The two sections are connected by a double-ended screw thread, and the threads at both ends of the double-ended screw have opposite directions.

[0015] A further improvement of this utility model is that a clamping part is provided in the middle of the double-ended screw.

[0016] A further improvement of this utility model is that two trenching knife mounting brackets are connected and installed at the bottom of the frame, arranged in pairs. A trenching knife connecting seat is connected and installed at the bottom of the trenching knife mounting bracket. A trenching knife connecting bracket is connected and installed on the trenching knife and vertically slidably inserted into the trenching knife connecting seat. A first locking bolt that can press and position the trenching knife connecting bracket is screwed onto the trenching knife connecting seat.

[0017] A further improvement of this invention is that the pressing roller is connected and installed to the machine frame via a pressing roller frame.

[0018] A further improvement of this utility model is that two soil covering shovel mounting frames arranged in pairs are connected and installed at the lower part of the frame. A soil covering shovel connecting frame is connected and installed on the soil covering shovel and vertically slidably inserted into the bottom of the soil covering shovel mounting frame. A second locking bolt that can press and position the soil covering shovel mounting frame is screwed onto the soil covering shovel mounting frame.

[0019] A further improvement of this utility model is that a pull frame is connected and installed at the front of the frame.

[0020] As can be seen from the above technical solutions, the beneficial effects of this utility model are:

[0021] In use, the mulch film on the film roll wraps around the bottom of the mulching roller and the bottom of the two pressing rollers and extends backward. Adjusting the length of the pressing roller adjustment rod allows the roller to apply downward pressure to the field (the downward pressure is adjusted by changing the length of the pressing roller adjustment rod). As the frame is pulled forward, the front wheel and pressing rollers provide rolling support. Two trenching blades create trenches on both sides of the mulching area (with sufficient depth and width to allow the pressing rollers to sink in). The rolling of the pressing rollers levels the field, effectively preventing unevenness in the mulching area. Under the weight of the mulching rollers, the mulch film is pressed onto the leveled field. The pressing rollers press the sides of the mulch film into the trenches created by the trenching blades (ensuring sufficient coverage depth). Finally, the covering shovel covers and compacts the soil outside the trenches onto the upper sides of the mulch film, achieving efficient integrated mulching operations for crops. This device has a simple structure, is easy to use, effectively avoids wrinkling and damage to the mulch film caused by uneven field conditions, and effectively ensures reliable coverage on both sides of the mulch film, making it highly practical. Attached Figure Description

[0022] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a first-view structural diagram of a specific embodiment of the present invention.

[0024] Figure 2 This is a second-view structural diagram of a specific embodiment of the present invention.

[0025] Figure 3 for Figure 2 A magnified schematic diagram of part A in the middle.

[0026] Figure 4 This is a side view of a specific embodiment of the present utility model.

[0027] In the attached diagram: 1. Frame; 11. Pulling frame; 2. Front wheel; 21. Front wheel frame; 3. Trenching cutter; 31. Trenching cutter mounting frame; 32. Trenching cutter connecting seat; 33. Trenching cutter connecting frame; 34. First locking bolt; 4. Film roll; 41. Film roll support seat; 42. Mulch film; 5. Pressure roller; 51. Pressure roller connecting frame; 52. Pressure roller adjusting rod; 53. Double-ended screw; 54. Clamping part; 6. Film covering roller; 61. Film covering roller connecting frame; 62. Elastic tension member; 63. Support frame; 7. Film pressing wheel; 71. Film pressing wheel frame; 8. Soil covering shovel; 81. Soil covering shovel connecting frame; 82. Soil covering shovel mounting frame; 83. Second locking bolt. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0029] like Figure 1-4 As shown, this utility model discloses a crop mulching device, including a frame 1. The lower part of the frame 1 is connected and installed with (from front to back) symmetrically arranged front wheels 2, symmetrically arranged trenching blades 3, symmetrically arranged film pressing wheels 7, and symmetrically arranged soil covering shovels 8. The trenching blades 3 and film pressing wheels 7 are arranged correspondingly front and rear, and the soil covering shovels 8 are located on the outer rear part of the film pressing wheels 7, enabling them to cover the mulch film 42 pressed by the film pressing wheels 7 with soil. The upper part of the frame 1 is equipped with symmetrically arranged film roll support seats 41 that allow the film roll 4 to be rotatably mounted. The lower part of the frame 1 is rotatably connected to (the shaft axis below) The frame 1 is equipped with a pair of (symmetrical) pressure roller connecting frames 51 arranged in the left and right directions. The lower part of the frame 1 is rotatably connected (with the axis of rotation below the left and right direction) to a pair of (symmetrical) adjustable pressure roller adjusting rods 52 arranged in the left and right directions. The lower end of the pressure roller adjusting rod 52 is rotatably connected to the middle of the pressure roller connecting frame 51. A pressure roller 5 is rotatably installed between the lower ends of the two pressure roller connecting frames 51 (with the axis of rotation in the left and right direction). A film coating roller connecting frame 61 is also rotatably connected to each of the two pressure roller connecting frames 51. A film coating roller 6 is rotatably installed between the two film coating roller connecting frames 61 (with the axis of rotation in the left and right direction). The film coating roller 6 is located behind the pressure roller 5 and in front of the film pressing wheel 7.

[0030] During use, the mulch film 42 on the film roll 4 passes over the bottom of the mulching roller 6 and the bottom of the two pressing rollers 7 and extends backward. The length of the pressing roller adjusting rod 52 is adjusted so that the pressing roller 5 can exert a certain downward pressure on the field (the downward pressure can be adjusted by adjusting the length of the pressing roller adjusting rod 52). During the forward pulling of the frame 1, the front wheel 2 and the pressing roller 7 provide rolling support. The two ditching knives 3 dig trenches on both sides of the mulching area (with a certain depth and width, so that the pressing roller 7 can sink in). During the rolling of the pressing roller 5, the field is leveled, effectively avoiding unevenness in the mulching area. Under the weight of the mulching roller 6, the mulch film 42 is pressed onto the leveled field. The pressing roller 7 presses the two sides of the mulch film 42 into the trenches dug by the ditching knives 3 (ensuring that the mulch film 42 has sufficient covering depth). Finally, the covering shovel 8 covers and compacts the soil outside the trenches onto the upper part of the mulch film 42, realizing efficient integrated mulching operation for crops. This device has a simple structure and is easy to use. It effectively avoids wrinkling and damage to the mulch film caused by uneven fields, and effectively ensures reliable sealing on both sides of the mulch film, making it highly practical.

[0031] The frame 1 is connected to and installed with a pulling frame 11 at the front. The pulling frame 11 enables power-driven operation, such as manual pulling or pulling by agricultural machinery (seeder) (flexibly hung on the seeder), thus achieving ease of use.

[0032] Among them, the inner side of the trenching blade 3 is a vertical surface in the front-to-back direction, that is, the trenching blade 3 can turn the soil turned out by trenching outward, which facilitates the subsequent covering and compaction operation of the covering shovel 8.

[0033] The membrane roll support 41 has an upper-opening mounting groove, in which a rotating shaft is inserted and rotated with the membrane roll 4. Nuts are screwed onto both ends of the rotating shaft. This allows for easy assembly and disassembly of the membrane roll 4, as well as convenient adjustment and maintenance of the membrane roll 4. The nuts prevent the rotating shaft from moving left or right.

[0034] In order to ensure the synchronous operation of the two pressure roller connecting frames 51, a first intermediate frame is fixedly connected between the two pressure roller connecting frames 51; similarly, in order to ensure the synchronous operation of the two coating roller connecting frames 61, a second intermediate frame is fixedly connected between the two coating roller connecting frames 61.

[0035] Furthermore, a support frame 63 is fixedly connected to the pressure roller connecting frame 51, and an elastic tension member 62 is connected between the support frame 63 and the film covering roller connecting frame 61, which can elastically pull the film covering roller 6 upward. By adjusting the elastic force of the elastic tension member 62, the downward pressing force of the film covering roller 6 on the film 42 can be adjusted, thereby making it suitable for different soft soil textures and ensuring the flatness and adhesion of the film covering.

[0036] Furthermore, the elastic tension member 62 is an elastic rope or a tension spring, and its tension can be adjusted by different suspension points, making it easy to achieve.

[0037] The pressure roller adjusting rod 52 has a two-section structure, with its two sections rotatably connected to the frame 1 and the pressure roller connecting frame 51, respectively. The two sections are connected by a double-ended screw 53 with opposite thread directions at both ends. A clamping part 54 is provided in the middle of the double-ended screw 53, and the clamping part 54 has a regular hexagonal cross-section. By clamping and rotating the clamping part 54 with a wrench, the length of the pressure roller adjusting rod 52 can be flexibly adjusted, thereby allowing for flexible adjustment of the height of the pressure roller 5.

[0038] Furthermore, a tightening nut is screwed onto each end of the double-ended screw 53, which can abut against the ends of the pressure roller adjusting rod 52 to tighten it and prevent the double-ended screw 53 from rotating arbitrarily.

[0039] The frame 1 has two paired trenching cutter mounting brackets 31 connected to its bottom. Each mounting bracket 31 has a trenching cutter connecting seat 32 attached to its bottom. A trenching cutter connecting frame 33, vertically sliding and inserted into the trenching cutter connecting seat 32, is connected to the trenching cutter 3. A first locking bolt 34 is screwed onto the trenching cutter connecting seat 32 to secure and position the connecting frame 33. Loosening the first locking bolt 34 allows for the adjustment of the trenching cutter 3's height, facilitating flexible adjustment of the trenching depth and improving applicability. Tightening the first locking bolt 34 ensures reliable positioning and installation of the trenching cutter 3.

[0040] The pressing wheel 7 is connected to the frame 1 via the pressing wheel frame 71, and the front wheel 2 is connected to the frame 1 via the front wheel frame 21. Two matching soil-covering shovel mounting frames 82 are connected and installed at the lower part of the frame 1. A soil-covering shovel connecting frame 81 is connected and installed on the soil-covering shovel 8, which slides vertically into the bottom of the soil-covering shovel mounting frame 82. A second locking bolt 83 is screwed onto the soil-covering shovel mounting frame 82 to secure and position it. Loosening the second locking bolt 83 allows for the lifting and lowering adjustment of the soil-covering shovel 8, facilitating flexible adjustment of the soil-covering amount and improving applicability. Tightening the second locking bolt 83 ensures reliable positioning and installation of the soil-covering shovel 8.

[0041] Furthermore, the frame 1 has several mounting holes spaced apart in the left and right directions for positioning and installing the film pressing wheel frame 71, several mounting holes spaced apart in the left and right directions for positioning and installing the trenching cutter mounting frame 31, and several mounting holes spaced apart in the left and right directions for positioning and installing the covering shovel mounting frame 82. By selecting different mounting holes, the inner and outer positions of the trenching cutter 3, the film pressing wheel 7, and the covering shovel 8 can be flexibly adjusted, increasing the scope of application and improving versatility.

[0042] In use, the mulch film 42 on the film roll 4 passes over the bottom of the mulching roller 6 and the bottom of the two pressing rollers 7 and extends backward. The length of the pressing roller adjusting rod 52 is adjusted so that the pressing roller 5 can exert a certain downward pressure on the field (the downward pressure can be adjusted by adjusting the length of the pressing roller adjusting rod 52). During the forward pulling of the frame 1, the front wheel 2 and the pressing rollers 7 provide rolling support. The two ditching blades 3 dig trenches on both sides of the mulching area (with a certain depth and width, so that the pressing rollers 7 can sink into them). During the rolling of the pressing roller 5, the field is leveled, effectively avoiding unevenness in the mulching area. Under the weight of the mulching roller 6, the mulch film 42 is pressed onto the leveled field. The pressing rollers 7 press the two sides of the mulch film 42 into the trenches dug by the ditching blades 3 (ensuring that the mulch film 42 has sufficient covering depth). Finally, the covering shovel 8 covers and compacts the soil outside the trenches onto the upper part of the mulch film 42, realizing efficient integrated mulching operation for crops. This device has a simple structure and is easy to use. It effectively avoids wrinkling and damage to the mulch film caused by uneven fields, and effectively ensures reliable sealing on both sides of the mulch film, making it highly practical.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crop covering device comprising a frame (1), characterized in that, The lower part of the frame (1) is connected and installed with a pair of front wheels (2), trenching cutter (3), film pressing roller (7), and soil covering shovel (8). The trenching cutter (3) is arranged in front and behind the film pressing roller (7), and the soil covering shovel (8) is located on the outer rear part of the film pressing roller (7). The frame (1) is equipped with a film roll support seat (41) that can rotate the film roll (4). The lower part of the frame (1) is rotatably connected and installed with a pair of pressure roller connecting frames (51) and a... The pressure roller adjusting rod (52) is adjusted in length. The lower end of the pressure roller adjusting rod (52) is rotatably connected to the pressure roller connecting frame (51). A pressure roller (5) is rotatably installed between the lower ends of the two pressure roller connecting frames (51). A film coating roller connecting frame (61) is also rotatably connected to the two pressure roller connecting frames (51). A film coating roller (6) is rotatably installed between the two film coating roller connecting frames (61). The film coating roller (6) is located behind the pressure roller (5) and in front of the film pressing wheel (7).

2. The agricultural crop covering apparatus of claim 1, wherein The membrane roll support base (41) is provided with an upper opening mounting groove, and a rotating shaft that is inserted into the mounting groove to rotate with the membrane roll (4) is installed. Nuts are screwed onto both ends of the rotating shaft.

3. The crop mulching device according to claim 1, characterized in that, A support frame (63) is connected and installed on the pressure roller connecting frame (51). An elastic pull member (62) that can elastically pull the film-coating roller (6) is connected between the support frame (63) and the film-coating roller connecting frame (61).

4. The agricultural crop covering apparatus of claim 3, wherein The elastic member (62) is an elastic rope.

5. The crop mulching device according to claim 1, characterized in that, The pressure roller adjusting rod (52) has a two-section structure, which is rotatably connected to the frame (1) and the pressure roller connecting frame (51) respectively. The two sections are connected by a double-headed screw (53), and the threads at both ends of the double-headed screw (53) are opposite.

6. The agricultural crop covering apparatus of claim 5, wherein, The double-ended screw (53) has a clamping part (54) in the middle.

7. The agricultural crop covering apparatus of claim 1, wherein The bottom of the frame (1) is connected to two trenching knife mounting brackets (31) arranged in pairs on the left and right. The bottom of the trenching knife mounting bracket (31) is connected to a trenching knife connecting seat (32). The trenching knife (3) is connected to a trenching knife connecting frame (33) that slides vertically into the trenching knife connecting seat (32). The trenching knife connecting seat (32) is screwed with a first locking bolt (34) that can press and position the trenching knife connecting frame (33).

8. The agricultural crop covering apparatus of claim 1, wherein, The pressing roller (7) is connected to the frame (1) via the pressing roller frame (71).

9. The agricultural crop covering apparatus of claim 1, wherein, The lower part of the frame (1) is connected to two soil covering shovel mounting brackets (82) arranged in pairs on the left and right. The soil covering shovel (8) is connected to a soil covering shovel connecting bracket (81) that slides vertically into the bottom of the soil covering shovel mounting bracket (82). The soil covering shovel mounting bracket (82) is screwed with a second locking bolt (83) that can press and position the soil covering shovel mounting bracket (82).

10. The agricultural crop covering apparatus of claim 1, wherein, A pull frame (11) is connected and installed at the front of the frame (1).

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