Film mulching device for agricultural planting
The innovative design of the mulching device solves the problem of inconvenient film tube replacement, enabling convenient film tube replacement and stable film pressing, thereby improving the efficiency and stability of agricultural mulching operations.
Patent Information
- Application Number
- CN202422957360.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing agricultural mulching equipment is inconvenient for replacing film cylinders, resulting in low efficiency in mulching operations.
The design incorporates a combination of components such as a protective film support, a film cylinder, a support plate, a positioning bearing, a toothed plate, a planar gear, a planar worm gear, a one-way worm, and an external turntable. This design allows for easy replacement of the film cylinder. A one-way DC motor drives a one-way lead screw and a threaded cylinder, while pressing rollers press the film into the soil, ensuring film stability.
It enables quick replacement of the film cylinder, improves the efficiency of mulching operations, reduces the time spent on manual backfilling of soil, and speeds up the work process.
Smart Images

Figure CN223488858U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a mulching device, specifically a mulching device for agricultural planting, and belongs to the field of agricultural technology. Background Technology
[0002] Agriculture is an industry that uses artificial cultivation of plants and animals to obtain products, and it belongs to the primary sector. The objects of agricultural labor are living plants and animals, and the products obtained are also plants and animals themselves; therefore, agriculture utilizes the growth and development patterns of plants and animals.
[0003] A search revealed a Chinese patent with publication number CN218072728U, which discloses a mulching device for agricultural planting. The device includes a mulching device frame, a mulching device body, a mulching device lifting frame, and a film cylinder. This invention, through the mulching device lifting frame, adjusts the height between the film cylinder and the planting soil. A screw-controlled motor controls the rotation of the screw, and through the action of the threaded structure on both sides of the screw, the lifting control nuts on both sides of the screw pull the lifting control rod, thereby automatically adjusting the position of the film cylinder according to the height of different planting soils.
[0004] While the above-mentioned solutions can automatically adjust the position of the film cylinder according to the height of different planting soils, the film covering device in the above patent is not convenient for replacing the film cylinder. When covering the soil, due to the large area and the large amount of film required, the film cylinder needs to be replaced frequently to ensure the normal operation of the film covering work. Therefore, we provide a film covering device for agricultural planting to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a mulching device for agricultural planting in order to solve the above-mentioned problems, thereby addressing the issue of inconvenience in replacing the film cylinder in the aforementioned prior art.
[0006] This utility model is achieved through the following technical solution: a film covering device for agricultural planting, comprising a film covering protective support and a film tube, wherein the film tube is rotatably connected to the inner wall of the support plate via a positioning bearing, the bottom of the support plate is fixedly connected to the upper surface of a strip toothed plate, the teeth on the lower surface of the strip toothed plate mesh with the teeth on the outer circumferential surface of a planar gear, a planar worm gear is fixedly connected to one side of the planar gear, the teeth on the outer circumferential surface of the planar worm gear mesh with the thread on the outer circumferential surface of a one-way worm, and the outer circumferential surface of the one-way worm is rotatably connected to the inner wall of the film covering protective support. The tight fit between the components can effectively achieve the effect of convenient replacement of the film tube.
[0007] Preferably, one end of the one-way worm gear is fixedly connected to an external turntable, and the outer circumferential surface of the external turntable is provided with anti-slip texture. The external turntable facilitates the operator to drive the one-way worm gear to rotate.
[0008] Preferably, a wedge block is fixedly connected to one side of the strip toothed plate, and the wedge block is slidably connected to the inner wall of the film-coated protective support. The wedge block ensures that the strip toothed plate can move stably.
[0009] Preferably, a U-shaped bracket is fixedly connected to the top of the protective film support, and a unidirectional DC motor is fixedly connected to the top of the U-shaped bracket. The unidirectional DC motor is existing technology and will not be described in detail.
[0010] Preferably, the output shaft of the unidirectional DC motor is fixedly connected to a unidirectional lead screw, and the outer circumferential surface of the unidirectional lead screw is threadedly connected to the inner wall of the threaded cylinder. The threaded cylinder can effectively drive subsequent components to move synchronously.
[0011] Preferably, the bottom of the threaded cylinder is fixedly connected to the top of the roller frame, and a pressing roller is rotatably connected to the inner wall of the roller frame. The pressing roller can effectively press the film and reduce the friction between them.
[0012] Preferably, a control plate is fixedly connected to the outer circumferential surface of the threaded cylinder, and the control plate is slidably connected to the inner wall of the U-shaped bracket. The U-shaped bracket ensures that the unidirectional DC motor can work normally.
[0013] Preferably, an L-shaped placement plate is fixedly connected to the lower surface of the film-coated protective support. There are two L-shaped placement plates in total, which are symmetrically distributed. The L-shaped placement plates facilitate the placement of the film.
[0014] This utility model provides a mulching device for agricultural planting, which has the following beneficial effects:
[0015] This mulching device for agricultural planting, through the arrangement of mulching protection support, film cylinder, support plate, positioning bearing, strip toothed plate, plane gear, plane worm gear, one-way worm, external turntable, and wedge block, can effectively achieve convenient replacement of the film cylinder. When the film on the film cylinder is used up, it can be quickly replaced without delaying the work process and improving work efficiency.
[0016] This mulching device for agricultural planting, through the arrangement of an L-shaped placement plate, a U-shaped bracket, a unidirectional DC motor, a unidirectional lead screw, a threaded cylinder, a roller frame, pressing rollers, and a control plate, can effectively press the film, causing both sides of the film to sink into the soft soil. This ensures the stability of the film and saves time spent manually backfilling the soil. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2This is a three-dimensional structural diagram of the internal structure of the protective film support of this utility model;
[0019] Figure 3 This is a three-dimensional structural diagram of the planar worm gear of this utility model;
[0020] Figure 4 This is a three-dimensional structural diagram of the U-shaped bracket of this utility model;
[0021] Figure 5 This is a three-dimensional structural diagram of the internal structure of the U-shaped bracket of this utility model.
[0022] [Explanation of Key Component Symbols]
[0023] 1. Film-coated protective support; 2. Film tube; 3. Support plate; 4. Positioning bearing; 5. Strip toothed plate; 6. Planar gear; 7. Planar worm gear; 8. One-way worm; 9. External turntable; 10. Wedge block; 11. L-shaped placement plate; 12. U-shaped bracket; 13. One-way DC motor; 14. One-way lead screw; 15. Threaded cylinder; 16. Roller frame; 17. Pressing roller; 18. Control plate. Detailed Implementation
[0024] This utility model provides a mulching device for agricultural planting.
[0025] Please see Figure 1 and Figure 4 It includes a film protection support 1 and a film cylinder 2. An L-shaped placement plate 11 is fixedly connected to the lower surface of the film protection support 1. There are two L-shaped placement plates 11 in total. The two L-shaped placement plates 11 are symmetrically distributed. The purpose of setting multiple L-shaped placement plates 11 is to place the two sides of the film so that the film is in an arc shape, which facilitates the subsequent pressing of the film.
[0026] Please see Figure 4 and Figure 5 The top of the protective film support 1 is fixedly connected to a U-shaped bracket 12. The U-shaped bracket 12 can effectively provide support for multiple subsequent components and ensure the stability of the subsequent components during movement. The top of the U-shaped bracket 12 is fixedly connected to a unidirectional DC motor 13. The output shaft of the unidirectional DC motor 13 is fixedly connected to a unidirectional lead screw 14. The unidirectional DC motor 13 is existing technology. The unidirectional DC motor 13 can effectively provide sufficient power support for the rotation of the unidirectional lead screw 14.
[0027] Please see Figure 5The outer circumferential surface of the one-way lead screw 14 is threadedly connected to the inner wall of the threaded cylinder 15. The outer circumferential surface of the threaded cylinder 15 is fixedly connected to the control plate 18, which is slidably connected to the inner wall of the U-shaped bracket 12. The control plate 18 can effectively control the position of the threaded cylinder 15, so that when the one-way lead screw 14 rotates, the threaded cylinder 15 can only move up and down.
[0028] Please see Figure 4 and Figure 5 The bottom of the threaded cylinder 15 is fixedly connected to the top of the roller frame 16. The threaded cylinder 15 and the roller frame 16 maintain a linkage effect. The inner wall of the roller frame 16 is rotatably connected to the pressing roller 17. The setting of the pressing roller 17 can effectively press the film, so that the pressed part sinks into the soft soil.
[0029] Please see Figure 1 and Figure 2 The film cylinder 2 is rotatably connected to the inner wall of the support plate 3 via the positioning bearing 4. The positioning bearing 4 ensures the smoothness of the rotation of the film cylinder 2. The bottom of the support plate 3 is fixedly connected to the upper surface of the strip toothed plate 5. A wedge block 10 is fixedly connected to one side of the strip toothed plate 5. The wedge block 10 is slidably connected to the inner wall of the film protection support 1. The wedge block 10 can effectively provide support for the strip toothed plate 5 and ensure the stability of the strip toothed plate 5 during movement.
[0030] Please see Figure 2 and Figure 3 The teeth on the lower surface of the strip toothed plate 5 mesh with the teeth on the outer circumferential surface of the planar gear 6. When the planar gear 6 rotates, it can effectively move the strip toothed plate 5. A planar worm gear 7 is fixedly connected to one side of the planar gear 6. The planar gear 6 and the planar worm gear 7 maintain a linkage effect and rotate in place inside the film-coated protective support 1 through the action of the shaft.
[0031] Please see Figure 3 The teeth on the outer circumferential surface of the planar worm gear 7 mesh with the threads on the outer circumferential surface of the one-way worm 8. The tight fit between the planar worm gear 7 and the one-way worm 8 can effectively achieve the force transmission effect and has a self-locking effect, preventing the reverse rotation between the parts.
[0032] Please see Figure 2 and Figure 3 One end of the one-way worm gear 8 is fixedly connected to an external turntable 9. The outer circumferential surface of the external turntable 9 is provided with anti-slip texture. The external turntable 9 is designed to facilitate operation by the staff and prevent slippage. The outer circumferential surface of the one-way worm gear 8 is rotatably connected to the inner wall of the film-coated protective support 1. The film-coated protective support 1 provides support and restriction for the one-way worm gear 8, ensuring that the one-way worm gear 8 can rotate in place.
[0033] Working principle: During use, the film is pulled by external force, causing it to pass through the groove in the protective support 1 and rest on the L-shaped placement plate 11 on both sides. The unidirectional DC motor 13 is then activated, driving the unidirectional lead screw 14 to rotate. At this time, the threaded cylinder 15 is restricted by the control plate 18, and the unidirectional lead screw 14 can drive the threaded cylinder 15 downwards, causing the roller frame 16 and the pressing roller 17 to move synchronously. The pressing roller 17 presses the film, causing both sides of the film to sink into the soil. Ground nails are used to stabilize one end of the film. An external device causes the device to translate, and through pulling, the film cylinder 2 rotates within the support plate 3, thus completing the film work by passing through the ground. When the film on the film cylinder 2 is exhausted, an external force causes the external turntable 9 to rotate, causing the one-way worm gear 8 to drive the planar worm wheel 7 to rotate, thereby causing the planar gear 6 to move the strip toothed plate 5. At this time, the strip toothed plate 5 is restricted by the wedge block 10, causing the strip toothed plate 5 to translate within the film protection support 1, thereby driving the support plate 3 to move, releasing the restriction on the film cylinder 2, thus achieving the effect of convenient replacement of the film cylinder 2.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A mulching device for agricultural planting, comprising a mulching protection support (1) and a film cylinder (2), characterized in that: The film tube (2) is rotatably connected to the inner wall of the support plate (3) via the positioning bearing (4). The bottom of the support plate (3) is fixedly connected to the upper surface of the strip toothed plate (5). The teeth on the lower surface of the strip toothed plate (5) mesh with the teeth on the outer circumferential surface of the planar gear (6). A planar worm gear (7) is fixedly connected to one side of the planar gear (6). The teeth on the outer circumferential surface of the planar worm gear (7) mesh with the thread on the outer circumferential surface of the one-way worm (8). The outer circumferential surface of the one-way worm (8) is rotatably connected to the inner wall of the film-coated protective support (1).
2. The mulching device for agricultural planting according to claim 1, characterized in that: One end of the one-way worm gear (8) is fixedly connected to an external turntable (9), and the outer circumferential surface of the external turntable (9) is provided with anti-slip texture.
3. A mulching device for agricultural planting according to claim 1, characterized in that: A wedge block (10) is fixedly connected to one side of the strip toothed plate (5), and the wedge block (10) is slidably connected to the inner wall of the film-coated protective support (1).
4. A mulching device for agricultural planting according to claim 1, characterized in that: The top of the film-covered protective support (1) is fixedly connected to a U-shaped bracket (12), and the top of the U-shaped bracket (12) is fixedly connected to a unidirectional DC motor (13).
5. A mulching device for agricultural planting according to claim 4, characterized in that: The output shaft of the unidirectional DC motor (13) is fixedly connected to a unidirectional lead screw (14), and the outer circumferential surface of the unidirectional lead screw (14) is threadedly connected to the inner wall of the threaded cylinder (15).
6. A mulching device for agricultural planting according to claim 5, characterized in that: The bottom of the threaded cylinder (15) is fixedly connected to the top of the roller frame (16), and the inner wall of the roller frame (16) is rotatably connected to the pressing roller (17).
7. A mulching device for agricultural planting according to claim 5, characterized in that: The outer circumferential surface of the threaded cylinder (15) is fixedly connected to a control plate (18), which is slidably connected to the inner wall of the U-shaped bracket (12).
8. A mulching device for agricultural planting according to claim 1, characterized in that: The lower surface of the film-coated protective support (1) is fixedly connected to an L-shaped placement plate (11). There are two L-shaped placement plates (11), which are symmetrically distributed.
Citation Information
Patent Citations
Film mulching device for agricultural planting
CN218072728U