Full-decomposition mulching film laying device
By designing a replacement structure for the fully decomposable mulch film laying device, the problem of inconvenient film replacement in existing devices has been solved, enabling rapid replacement and improving the efficiency of mulch film laying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING NALONGLIANDA BIO-ENVIRONMENTAL TECHNOLOGY CO LTD
- Filing Date
- 2025-03-26
- Publication Date
- 2026-04-21
AI Technical Summary
Existing fully decomposable mulch film laying devices make it difficult to quickly replace the next roll of film after it has been laid, which affects the efficiency of mulch film laying.
A fully decomposable mulch film laying device was designed, comprising a fixed frame, pressure rollers, soil turning shovel, soil burying shovel, and a replacement structure. By using baffles, connecting blocks, limit rods, and springs in the replacement structure, the mulch film rolls can be quickly replaced.
It improved the efficiency of replacing plastic film rolls, reduced replacement time, and increased the efficiency of plastic film laying.
Smart Images

Figure CN224139736U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural planting equipment technology, specifically a fully decomposable mulch film laying device. Background Technology
[0002] Fully biodegradable mulch film, also known as fully biodegradable film, is made primarily from biodegradable materials and is used for soil surface covering during crop cultivation. It possesses the same performance characteristics as ordinary mulch film (warming properties, moisture retention, weed suppression, and light transmission) and degrades naturally through microbial action. Fully biodegradable mulch film offers advantages such as being environmentally friendly, pollution-free, and improving soil quality. In agricultural planting, mulch film laying devices are typically used for its installation.
[0003] When using existing fully decomposable mulch film laying devices, it is inconvenient to quickly replace the next roll of film after one roll is laid, thus affecting the efficiency of mulch film laying.
[0004] Therefore, this utility model provides a fully decomposable mulch film laying device to solve the above problems. Utility Model Content
[0005] This utility model provides a fully decomposable mulch film laying device, which aims to solve the problems mentioned in the background art, such as the inconvenience of quickly replacing the next roll of film after one roll of film is laid, thus affecting the efficiency of mulch film laying.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a fully decomposable mulch film laying device, including a fixed frame, wherein a pressure roller, a soil turning shovel, a soil burying shovel, and a vertical plate are symmetrically installed at the bottom and on the front and rear sides of the fixed frame, and the lower ends of the two sets of fixed frames are connected by a replacement structure.
[0007] The replacement structure includes a fixed shell installed at the lower end of the vertical plate. A placement rod and a baffle connected to the side wall of the fixed shell via hinges are provided on the back of the inner cavity of the fixed shell. A connecting block is provided at the front end of the fixed shell. A first connecting plate is slidably installed on the connecting block through an inner groove. Limiting rods are symmetrically installed on the first connecting plate through connecting holes. A spring is installed on the first connecting plate and outside the limiting rods. The left ends of the two sets of limiting rods are connected by a second connecting plate. By setting up the replacement structure, a quick replacement function for the mulch film roll is achieved, reducing the replacement time and improving the replacement efficiency. This avoids the problem of inconvenience in quickly replacing the next roll of mulch film after one roll is laid, which is common in existing fully decomposable mulch film laying devices, and also improves the efficiency of mulch film laying.
[0008] Preferably, a handle structure is installed on the right side wall of the fixed frame;
[0009] The handle structure includes two sets of fan-shaped plates symmetrically installed on the right side wall of the fixed frame. The side wall of the fan-shaped plate is equipped with a fixed shaft. The outer wall of the two sets of fixed shafts is rotatably equipped with a handle frame. The front and rear sides of the handle frame are connected by bolts through through holes. The bolts are threaded with nuts.
[0010] Preferably, mounting brackets are symmetrically installed at the bottom of the fixed frame, and a horizontal shaft is provided at the lower end of the mounting bracket. The horizontal shaft is rotatably connected to the pressure roller through a bearing.
[0011] Preferably, the upper end of the soil-turning shovel is equipped with a vertical rod connected to the bottom of the fixed frame, and the upper end of the soil-burying shovel is equipped with an L-shaped rod connected to the bottom of the fixed frame.
[0012] Preferably, a plastic film roll is installed on the outer wall of the placement rod, a limiting hole is opened on the left side wall of the baffle corresponding to the limiting rod, and a hand-held part is installed on the front of the baffle.
[0013] Preferably, the connecting block is connected to the other end of the spring through the inner groove, a pull ring is installed on the side wall of the second connecting plate, and the end of the limiting rod away from the second connecting plate passes through the connecting block and extends to the outside.
[0014] Preferably, the sector plate has multiple sets of insertion holes, which are evenly distributed on the sector plate.
[0015] Beneficial effects: By setting up a replacement structure and using baffles, connecting blocks, limit rods and springs in combination, the function of quickly replacing the mulch film roll is realized, which reduces the replacement time of the mulch film roll and improves the replacement efficiency of the mulch film roll. It avoids the problem that it is inconvenient to quickly replace the next roll of film after one roll of film is laid when using the existing fully decomposable mulch film laying device, and also improves the mulch film laying efficiency. Attached Figure Description
[0016] Figure 1 A schematic diagram of the southeastern isometric structure of a fully decomposable mulch film laying device;
[0017] Figure 2 A schematic diagram of the northeastern isometric structure of a fully decomposable mulch film laying device;
[0018] Figure 3 A schematic diagram of the replacement structure of a fully decomposable mulch film laying device;
[0019] Figure 4 A partial cross-sectional schematic diagram of the replacement structure of a fully decomposable mulch film laying device;
[0020] Figure 5 This is a schematic diagram of the handle structure of a fully decomposable mulch film laying device.
[0021] In the diagram: 1. Fixed frame; 11. Mounting bracket; 111. Horizontal axis; 12. Vertical rod; 13. L-shaped rod; 2. Pressure roller; 3. Soil turning shovel; 4. Soil burying shovel; 5. Vertical plate; 6. Replacement structure; 61. Fixed shell; 62. Placement rod; 63. Baffle; 631. Limiting hole; 632. Handle; 64. Connecting block; 641. Inner groove; 65. Limiting rod; 66. First connecting plate; 67. Spring; 68. Second connecting plate; 681. Pull ring; 7. Mulch film roll; 8. Handle structure; 81. Fan-shaped plate; 811. Insertion hole; 82. Fixed shaft; 83. Handle frame; 831. Through hole; 84. Bolt; 85. Nut. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1
[0024] This embodiment provides a fully decomposable mulch film laying device, such as... Figure 1-5 As shown, the mulch film laying device includes a fixed frame 1. A pressure roller 2, a soil turning shovel 3, a soil burying shovel 4, and a vertical plate 5 are symmetrically installed at the bottom and on the front and rear sides of the fixed frame 1. The lower ends of the two sets of fixed frames 1 are connected by a replacement structure 6.
[0025] The replacement structure 6 includes a fixed shell 61 installed at the lower end of the vertical plate 5. The inner cavity of the fixed shell 61 is provided with a placement rod 62 and a baffle 63 connected to the side wall of the fixed shell 61 by a hinge. The front end of the fixed shell 61 is provided with a connecting block 64. The connecting block 64 is slidably mounted with a first connecting plate 66 through an inner groove 641. The first connecting plate 66 is symmetrically mounted with limit rods 65 through connecting holes. A spring 67 is installed on the first connecting plate 66 and outside the limit rods 65. The left ends of the two sets of limit rods 65 are connected by a second connecting plate 68.
[0026] In use, after the mulch film roll 7 is laid, the user pulls the pull ring 681 outward. The pull ring 681 moves the second connecting plate 68, and the second connecting plate 68 simultaneously moves the two sets of limiting rods 65 out of the limiting hole 631. The limiting rods 65 drive the first connecting plate 66 to compress the spring 67, and then drive the hand-held part 632 to rotate with the limiting hole 631, so that the movable end of the baffle 63 moves away from the connecting block 64. At this time, remove the remaining core after laying the mulch film roll 7, and then replace it with a new mulch film roll 7. Push the core of the new mulch film roll 7 into the inside of the fixing shell 61 and wrap it around the outer wall of the placement rod 62. Drive the hand-held part 632 to rotate with the spring 67. The limiting hole 631 rotates, causing the movable end of the baffle 63 to approach the connecting block 64, aligning the limiting hole 631 with the limiting rod 65. The pull ring 681 is released, and under the reset action of the spring 67, the limiting rod 65 is pushed back into the limiting hole 631, thus fixing the baffle 63. The baffle 63 blocks the new mulch film roll 7, enabling rapid replacement of the mulch film roll 7, reducing the replacement time, and improving the replacement efficiency. This avoids the problem of inconvenience in quickly replacing the next roll after one roll of film is laid, which is present in existing fully decomposable mulch film laying devices, and also improves the efficiency of mulch film laying.
[0027] In this embodiment, mounting frames 11 are symmetrically installed at the bottom of the fixed frame 1. A horizontal shaft 111 is provided at the lower end of the mounting frame 11. The horizontal shaft 111 is rotatably connected to the pressure roller 2 through a bearing. A vertical rod 12 connected to the bottom of the fixed frame 1 is installed at the upper end of the soil turning shovel 3. An L-shaped rod 13 connected to the bottom of the fixed frame 1 is installed at the upper end of the soil burying shovel 4. A mulch film roll 7 is installed on the outer wall of the placement rod 62. A limit hole 631 is opened on the left side wall of the baffle 63 corresponding to the limit rod 65. A hand-held part 632 is installed on the front of the baffle 63.
[0028] The handheld part 632 allows the user to easily rotate the baffle 63 by holding it, which helps to replace the plastic film roll 7 and makes the operation more convenient.
[0029] In this embodiment, the connecting block 64 is connected to the other end of the spring 67 through the inner groove 641, and a pull ring 681 is installed on the side wall of the second connecting plate 68. The end of the limiting rod 65 away from the second connecting plate 68 passes through the connecting block 64 and extends to the outside.
[0030] The limiting rod 65 extends through the connecting block 64 and outwards at one end away from the second connecting plate 68, allowing the movable end of the limiting rod 65 to enter the limiting hole 631, thereby achieving the function of quickly fixing the baffle 63.
[0031] Example 2
[0032] Unlike Embodiment 1, the handle height of the existing fully decomposable mulch film laying device is fixed and cannot be adjusted. Therefore, a handle structure 8 is installed on the right side wall of the fixed frame 1.
[0033] The handle structure 8 includes two sets of fan-shaped plates 81 symmetrically installed on the right side wall of the fixed frame 1. The side wall of the fan-shaped plate 81 is equipped with a fixed shaft 82. The outer wall of the two sets of fixed shafts 82 is rotatably mounted with a handle frame 83. The front and rear sides of the handle frame 83 are connected with bolts 84 through through holes 831. The bolts 84 are threaded with nuts 85.
[0034] In use, different users can adjust the height of the handle 83 according to their own height. The bolts 84 and nuts 85 on the front and back sides are removed, and then the handle 83 is rotated clockwise or counterclockwise to align the through hole 831 with the insertion hole 811 in different positions. This allows the handle 83 to be lowered or lowered on the side away from the sector plate 81. Then, the bolts 84 are used to pass through the through hole 831 and the insertion hole 811 in sequence, and the handle 83 is fixed to the sector plate 81 with the nuts 85. This allows the height of the handle 83 to be adjusted, avoiding the problem that the handle height of the existing fully decomposable mulch film laying device is fixed and cannot be adjusted. This brings convenience to users of different heights.
[0035] In this embodiment, the sector plate 81 is provided with a plurality of insertion holes 811, which are evenly distributed on the sector plate 81.
[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A total decomposition mulch laying device comprising a stationary frame (1), characterized in that: The bottom of the fixed frame (1) and the front and rear sides are symmetrically equipped with pressure rollers (2), soil turning shovels (3), soil burying shovels (4) and vertical plates (5). The lower ends of the two sets of fixed frames (1) are connected by a replacement structure (6). The replacement structure (6) includes a fixed shell (61) installed at the lower end of the vertical plate (5). The inner cavity of the fixed shell (61) is provided with a placement rod (62) and a baffle (63) connected to the side wall of the fixed shell (61) by a hinge. The front end of the fixed shell (61) is provided with a connecting block (64). The connecting block (64) is slidably installed with a first connecting plate (66) through an inner groove (641). The first connecting plate (66) is symmetrically installed with limit rods (65) through connecting holes. A spring (67) is installed on the first connecting plate (66) and outside the limit rods (65). The left ends of the two sets of limit rods (65) are connected by a second connecting plate (68).
2. The total decomposition mulch laying device according to claim 1, characterized by: A handle structure (8) is installed on the right side wall of the fixed frame (1). The handle structure (8) includes two sets of fan-shaped plates (81) symmetrically installed on the right side wall of the fixed frame (1). The side wall of the fan-shaped plate (81) is equipped with a fixed shaft (82). The outer wall of the two sets of fixed shafts (82) is rotatably equipped with a handle frame (83). The front and rear sides of the handle frame (83) are connected with bolts (84) through through holes (831). The bolts (84) are threaded with nuts (85).
3. The fully decomposable mulch film laying device according to claim 1, characterized in that: The bottom of the fixed frame (1) is symmetrically equipped with a mounting bracket (11), and the lower end of the mounting bracket (11) is provided with a horizontal shaft (111). The horizontal shaft (111) is rotatably connected to the pressure roller (2) through a bearing.
4. The total decomposition mulch laying device according to claim 1, characterized by: The upper end of the soil-turning shovel (3) is equipped with a vertical rod (12) connected to the bottom of the fixed frame (1), and the upper end of the soil-burying shovel (4) is equipped with an L-shaped rod (13) connected to the bottom of the fixed frame (1).
5. The total decomposition mulch laying device according to claim 1, characterized by: The outer wall of the placement rod (62) is fitted with a plastic film roll (7), and the left side wall of the baffle (63) is provided with a limiting hole (631) corresponding to the limiting rod (65). The front of the baffle (63) is fitted with a hand-held part (632).
6. The total decomposition mulch laying device according to claim 1, characterized by: The connecting block (64) is connected to the other end of the spring (67) through the inner groove (641). A pull ring (681) is installed on the side wall of the second connecting plate (68). The end of the limiting rod (65) away from the second connecting plate (68) passes through the connecting block (64) and extends to the outside.
7. The total decomposition mulch laying device according to claim 2, characterized by: The sector plate (81) is provided with a socket (811), and the socket (811) is provided in multiple sets and is evenly distributed on the sector plate (81).