Sweet potato planting rotary tillage, fertilization and film mulching integrated machine

By improving the mulching device of the sweet potato rotary tillage, fertilization and mulching machine, and adopting a detachable roller bracket and an electromagnet fixing plate, the problem of cumbersome film roll replacement was solved, and the efficiency of film roll replacement and planting was improved.

CN224368559UActive Publication Date: 2026-06-19KOLAMAN (BEIJING) AGRICULTURAL SCIENCE & TECHNOLOGY DEVELOPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KOLAMAN (BEIJING) AGRICULTURAL SCIENCE & TECHNOLOGY DEVELOPMENT CO LTD
Filing Date
2025-05-21
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Traditional sweet potato rotary tillage, fertilization and mulching integrated machines require the disassembly of multiple fixing parts and mulch film roll supports when changing the mulch film roll, which makes the replacement process cumbersome and affects planting efficiency.

Method used

A film covering device was designed, in which the film roll is detachably connected to the roll bracket. The film roll can be quickly replaced by a rotating shaft and a fixing mechanism, including a fixing plate for electromagnets and magnets, which simplifies the disassembly and assembly process of the film roll.

Benefits of technology

The process of replacing the plastic film roll has been simplified, the replacement efficiency has been improved, and the working efficiency and stability of the rotary tillage, fertilization and mulching machine have been ensured.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of sweet potato planting devices, and proposes an integrated rotary tillage, fertilization, and mulching machine for sweet potato planting. The machine includes a mulching device comprising a mulch film roll and a roll support. The mulch film roll includes a mulch film body and a roll body, which is detachably connected to the roll support. The roll support includes two symmetrically and evenly distributed support frames centered on the mulch film roll. Each support frame is equipped with a cooperating rotating shaft for fixing the mulch film roll. Each cooperating rotating shaft is rotatably and slidably connected to the support frame. Each support frame is equipped with a fixing mechanism for limiting the movement of the cooperating rotating shaft. This solves the problem in related technologies where the mulch film roll support needs to be dismantled when replacing the mulch film roll, thus improving the efficiency of mulch film roll replacement.
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Description

Technical Field

[0001] This utility model relates to the technical field of sweet potato planting devices, specifically to a rotary tillage, fertilization and mulching integrated machine for sweet potato planting. Background Technology

[0002] The integrated sweet potato rotary tillage, fertilization, and mulching machine, also known as a sweet potato ridging and mulching machine, typically combines rotary tillage, fertilization, ridging, and mulching planting devices. During use, it usually relies on tractors or other field-moving devices for movement, thus completing multiple planting processes at once and improving sweet potato planting efficiency.

[0003] Currently, mulching devices typically consist of a mulch film roll support and a mulch film roll. When the mulch film on the roll is used up, the roll is replaced to maintain the normal operation of the sweet potato rotary tillage, fertilization, and mulching integrated machine. However, the mulch film rolls are usually fixed together by detachable fasteners such as clips or bolts. This means that when replacing the mulch film roll, multiple fasteners need to be removed, and sometimes the mulch film roll support may even need to be dismantled. This makes the disassembly and installation of the mulch film rolls cumbersome and time-consuming, thus affecting the efficiency of sweet potato planting. Utility Model Content

[0004] This utility model proposes an integrated rotary tillage, fertilization, and mulching machine for sweet potato planting, which solves the problem in related technologies that the mulch film roll support needs to be dismantled when replacing the mulch film roll, thereby improving the efficiency of mulch film roll replacement.

[0005] The technical solution of this utility model is as follows:

[0006] A rotary tillage, fertilization, and mulching machine for sweet potato planting includes a mulching device. The mulching device includes a mulch film roll and a roll support. The mulch film roll includes a mulch film body and a roll body, and the roll body is detachably connected to the roll support. The roll support includes two support frames symmetrically and evenly distributed around the mulch film roll. Each support frame is provided with a cooperating rotating shaft for fixing the mulch film roll. Each cooperating rotating shaft is rotatably and slidably connected to the support frame. Each support frame is provided with a fixing mechanism for restricting the movement of the cooperating rotating shaft.

[0007] Furthermore, both ends of the scroll body are provided with mating holes for cooperating with mating shafts, and each mating shaft is provided with a positioning body at the end close to the scroll body.

[0008] Furthermore, each of the aforementioned mating shafts is provided with an elastic element between itself and the support frame.

[0009] Furthermore, the fixing mechanism includes a fixing plate, a fixing groove for embedding the fixing plate, and a fixing structure for fixing the fixing plate in the fixing groove, wherein the fixing plate abuts against the end of the cooperating shaft away from the scroll body.

[0010] Furthermore, the fixing structure includes an electromagnet and a mating magnet, the mating magnet being fixedly connected to the end of the fixing plate away from the opening of the fixing slot, and the electromagnet being located in the fixing slot.

[0011] Furthermore, the end of the fixing plate away from the bottom of the fixing groove is provided with a lifting handle to facilitate its removal from the fixing groove.

[0012] Furthermore, each of the aforementioned rotating shafts has a limiting fitting body at the end away from the scroll body.

[0013] Furthermore, the diameter of the end of the longitudinal section of the limiting fit body away from the roll body is smaller than the diameter of the end of the limiting fit body close to the roll body, and the longitudinal section of the limiting fit body is an isosceles trapezoidal structure.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] This utility model mainly improves upon traditional mulching devices. Therefore, it mainly includes a mulch film roll and a roll support. The mulch film roll mainly includes a mulch film body and a roll body. The mulch film body is fixedly mounted on the roll body. When the rotary tillage, fertilization and mulching machine is working, it is gradually laid in the planting field. The roll body is detachably connected to the roll support. That is, when the mulch film body on the roll is exhausted, the entire mulch film roll can be replaced by replacing the roll body.

[0016] Specifically, the roll support includes two symmetrically and evenly distributed support frames centered on the mulch film roll. Each support frame is equipped with a mating shaft for fixing the mulch film roll. Each mating shaft is rotatably and slidably connected to the support frame, meaning that each mating shaft can not only rotate on the support frame but also slide on it. By moving itself, it applies clamping force to the mating shaft, thereby completing the fixing work. In order to prevent the mating shaft from losing its fixing effect after it has played a fixing role, each support frame is equipped with a fixing mechanism to restrict the movement of the mating shaft, thereby ensuring that it can stably fix the mulch film roll by restraining the movement of the mating shaft.

[0017] In summary, when replacing the mulch film roll, this utility model eliminates the need to dismantle the entire roll support structure. It only requires eliminating the fixing function of the fixing mechanism in the roll support and moving the cooperating rotating shaft in the roll support, which effectively simplifies the disassembly and assembly of the mulch film roll and significantly improves the replacement efficiency of the mulch film roll. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1This is a schematic diagram of the structure of Example 1 or Example 2;

[0020] Figure 2 This is a cross-sectional view of Example 1;

[0021] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0022] Figure 4 This is a cross-sectional view of Example 2;

[0023] Figure 5 for Figure 4 Enlarged view of a section at point B in the middle;

[0024] Figure 6 This is a schematic diagram of the fixed plate structure in Example 3.

[0025] In the picture:

[0026] 1. Mulching device; 11. Mulching film roll; 111. Mulching film body; 112. Roll body; 1121. Mating hole; 12. Roll support; 121. Support frame; 122. Mating shaft; 3. Fixing mechanism; 31. Fixing plate; 311. Lifting handle; 32. Fixing groove; 33. Fixing structure; 331. Electromagnet; 332. Mating magnet; 4. Positioning body; 5. Elastic element; 6. Limiting mating body. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0028] Example 1

[0029] like Figure 1 As shown in the figure, this embodiment proposes a rotary tillage, fertilization and mulching integrated machine for sweet potato planting, which mainly includes a mulching device 1 and a device base. During use, the embodiment is moved in the field with the help of a tractor or other tillage mobile device, and the mulching device 1, rotary tillage device, fertilization device and other planting devices on the device base are activated to complete the sweet potato planting work. Since this embodiment mainly improves the traditional mulching device, the other devices can still adopt the traditional device structure, and will not be described in detail in this embodiment.

[0030] like Figures 2-3As shown, in this embodiment, the mulching device 1 mainly includes a mulch film roll 11 and a roll support 12. The mulch film roll 11 includes a mulch film body 111 and a roll body 112. The mulch film body 111 is fixedly mounted on the roll body 112, while the roll body 112 is detachably connected to the roll support 12. Thus, when the mulch film body 111 on the roll body 112 is exhausted due to the mulching work, the roll body 112 can be removed and replaced with a new mulch film roll 11 to complete the replacement of the mulch film roll 11.

[0031] In detail, the roll support 12 includes two support frames 121 symmetrically and evenly distributed around the mulch film roll 11. Each support frame 121 is provided with a mating rotating shaft 122 for fixing the mulch film roll 11. Each mating rotating shaft 122 is rotatably and slidably connected to the support frame 121. Correspondingly, each support frame 121 is provided with a connecting hole for mating the mating rotating shaft 122. That is, each mating rotating shaft 122 can not only rotate on the support frame 121, but also move along its axial direction on the support frame 121.

[0032] The sliding connection between the rotating shaft 122 and the support frame 121 allows each rotating shaft 122 to move in the direction of the mulch film roll 11, thereby abutting both ends of the mulch film roll 11 and clamping it to fix it in place. Conversely, moving the rotating shaft 122 away from the support frame allows for disassembly of the mulch film roll 11. Simultaneously, each support frame 121 is equipped with a fixing mechanism 3 to restrict the movement of the rotating shaft 122, ensuring its stable function in fixing the mulch film roll 11.

[0033] Thus, in this embodiment, when replacing the mulch film roll 11, it is not necessary to dismantle the entire structure of the roll support 12. It is only necessary to remove the fixing function of the fixing mechanism 3 in the roll support 12 and move the cooperating rotating shaft 122 in the roll support 12. This effectively simplifies the disassembly and assembly of the mulch film roll 11, greatly improves the replacement efficiency of the mulch film roll 11, and thus ensures the working efficiency of the rotary tillage, fertilization and mulching machine for sweet potato planting.

[0034] The rotatable connection between each mating shaft 122 and the support frame 121 allows each mating shaft 122 to remain in place after the mulch roll 11 is fixed, without affecting the rotation of the mulch roll 11 during the covering operation. At the same time, it can drive each mating shaft 122 to rotate together, effectively ensuring the feasibility of this embodiment.

[0035] Both ends of the roll body 112 are provided with mating holes 1121 for engaging with mating shafts 122. Each mating shaft 122 has a positioning body 4 at its end near the roll body 112. The end of the positioning body 4 near the mating hole 1121 is tapered, and the positioning body 4 itself is integrally formed with the mating shaft 122 to ensure the connection and structural strength between the two. Thus, with the presence of the positioning body 4, the mating shaft 122 can be accurately aligned during contact with the roll body 112, thereby achieving precise positioning of the mulch film roll 11. This further improves the installation efficiency of the mulch film roll 11 and ensures stable rotation of the roll body 112.

[0036] Each mating pivot 122 is provided with an elastic element 5 between it and the support frame 121. The elastic element 5 is preferably a compression spring. The elastic element 5 is preferably sleeved on the mating pivot 122 and located between the support frame 121 and the positioning body 4. The support frame 121, the positioning body 4, and the mating pivot 122 constrain the elastic element 5 to prevent it from detaching from the embodiment, thus ensuring the integrity of the overall structure of the embodiment.

[0037] Furthermore, both ends of the compression spring are provided with connecting ring plates. The presence of the connecting ring plates allows the elastic element 5 to make contact with the support frame 121 and the roll body 112 in a surface contact manner, which facilitates the elastic element 5 to bear force. The presence of the elastic element 5 can buffer the impact and vibration generated by the film roll 11 during operation, ensuring the working stability of the film covering device 1.

[0038] Each mating shaft 122 has a limiting fitting 6 at the end away from the roll body 112. In this embodiment, the limiting fitting 6 is preferably integrally formed with the mating shaft 122 to ensure the connection strength between the two. The diameter of the limiting fitting 6 is larger than the diameter of the connecting hole. That is, the presence of the limiting fitting 6 can effectively prevent the mating shaft 122 from detaching from the support frame 121 under the action of the elastic element 5 when the mulch roll 11 is removed, thereby ensuring the stability and integrity of the overall structure of the roll support 12.

[0039] The fixing mechanism 3 in this embodiment mainly includes a fixing plate 31, a fixing groove 32 for embedding the fixing plate 31, and a fixing structure 33 for fixing the fixing plate 31 in the fixing groove 32. Each support frame 121 is provided with a fixing groove 32. The fixing plate 31 and the end of the mating shaft 122 (limiting mating body 6) away from the scroll body 112 abut against each other. When the fixing plate 31 is embedded into each fixing groove 32 and abuts against each mating shaft 122, the fixing structure 33 can be activated to complete the fixing work of the fixing plate 31 itself, so that it is fixed at the position that restricts the movement of the mating shaft 122, thus completing the fixing work of the mating shaft 122.

[0040] Specifically, the fixing structure 33 includes an electromagnet 331 and a mating magnet 332. The electromagnet 331 should be equipped with a power supply and a control switch to control whether the power supply is providing power. The specific connection between the electromagnet 331, the control switch, and the power supply depends on the actual model of the electromagnet 331 used, which will not be elaborated in this embodiment. The mating magnet 332 is fixedly connected to the end of the fixing plate 31 away from the opening of the fixing groove 32. The electromagnet 331 is located in the fixing groove 32. That is, in this embodiment, the fixing plate 31 is fixed by magnetic attraction, which greatly simplifies the fixing of the fixing plate 31. It is only necessary to insert the fixing plate 31 into the fixing groove 32 and start the power supply by controlling the switch. This effectively avoids the cumbersome operation steps caused by the complex structure of the fixing structure 33, which affects the replacement efficiency of the mulch film roll 11.

[0041] Meanwhile, in order to facilitate the removal of the fixing plate 31 from the fixing groove 32 by the staff and eliminate its constraint on the mating shaft 122, the fixing plate 31 in this embodiment is provided with a lifting handle 311 at the end away from the bottom of the fixing groove 32 to facilitate the removal of itself from the fixing groove 32. The lifting handle 311 is preferably integrally formed with the fixing plate 31 to ensure the connection strength between the two.

[0042] Furthermore, the presence of the elastic element 5 allows the mating shaft 122 to pop out when the film roll 11 moves to the designated position (the axis of the mating hole 1121 is aligned with the axis of the mating shaft 122) during mating with the film roll 11. This prevents the presence of the mating shaft 122 (limiting mating body 6) from affecting the insertion of the fixing plate 31. If necessary, the mating shaft 122 can also be manually pulled to move it towards the film roll 11, further creating space for the insertion of the fixing plate 31.

[0043] Example 2

[0044] Based on Example 1, such as Figures 4-5 As shown, in this embodiment, the diameter of the end of the longitudinal section of the limiting fit body 6 away from the roll body 112 is smaller than the diameter of the end of the limiting fit body 6 close to the roll body 112. The longitudinal section of the limiting fit body 6 is an isosceles trapezoidal structure, that is, there is a guiding slope on the limiting fit body 6. In this way, the insertion movement of the fixing plate 31 and the movement movement of the fitting shaft 122 can be linked. The insertion of the fixing plate 31 can push the fitting shaft 122 itself to move towards the mulch film roll 11, thereby improving the fixing efficiency of the mulch film roll 11.

[0045] Example 3

[0046] Unlike Example 1 or Example 2, as Figure 6As shown, this embodiment proposes that the fixing plate 31 has connecting plates on both sides for mating with bolts and other threaded parts. That is, the fixing plate 31 in this embodiment can be fixed to the roll bracket 12 by means of bolts and other threaded parts. Compared with the magnetic fixation in Embodiment 1 or Embodiment 2, the fixing plate 31 in this embodiment is more stable and reliable.

[0047] If necessary, the magnetic attraction structure can still be retained in the fixing plate 31 and fixing groove 32 in this embodiment, so that the connecting plate in this embodiment can serve as a backup fixing method when the magnetic attraction structure is damaged, thereby improving the flexibility of fixing the fixing plate 31.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rotary tillage, fertilization, and mulching integrated machine for sweet potato planting, comprising a mulching device (1), characterized in that, The mulching device (1) includes a mulch film roll (11) and a roll support (12). The mulch film roll (11) includes a mulch film body (111) and a roll body (112). The roll body (112) is detachably connected to the roll support (12). The roll support (12) includes two support frames (121) symmetrically and evenly distributed around the mulch roll (11). Each support frame (121) is provided with a cooperating rotating shaft (122) for fixing the mulch roll (11). Each cooperating rotating shaft (122) is rotatably and slidably connected to the support frame (121). Each support frame (121) is provided with a fixing mechanism (3) for restricting the movement of the cooperating rotating shaft (122).

2. The integrated rotary tillage, fertilization, and mulching machine for sweet potato planting according to claim 1, characterized in that, Both ends of the scroll body (112) are provided with mating holes (1121) for mating with mating shafts (122), and each mating shaft (122) is provided with a positioning body (4) at the end close to the scroll body (112).

3. The integrated rotary tillage, fertilization, and mulching machine for sweet potato planting according to claim 2, characterized in that, Each of the aforementioned mating shafts (122) and the support frame (121) is provided with an elastic element (5).

4. The integrated rotary tillage, fertilization, and mulching machine for sweet potato planting according to claim 3, characterized in that, The fixing mechanism (3) includes a fixing plate (31), a fixing groove (32) for embedding the fixing plate (31), and a fixing structure (33) for fixing the fixing plate (31) in the fixing groove (32). The fixing plate (31) abuts against the end of the cooperating shaft (122) away from the scroll body (112).

5. The integrated rotary tillage, fertilization, and mulching machine for sweet potato planting according to claim 4, characterized in that, The fixing structure (33) includes an electromagnet (331) and a mating magnet (332). The mating magnet (332) is fixedly connected to one end of the fixing plate (31) away from the opening of the fixing groove (32). The electromagnet (331) is located in the fixing groove (32).

6. The integrated rotary tillage, fertilization, and mulching machine for sweet potato planting according to claim 4 or 5, characterized in that, The fixed plate (31) is provided with a handle (311) at one end away from the bottom of the fixed groove (32) to facilitate its removal from the fixed groove (32).

7. The integrated rotary tillage, fertilization, and mulching machine for sweet potato planting according to claim 3 or 4, characterized in that, Each of the aforementioned mating shafts (122) has a limiting mating body (6) at the end away from the scroll body (112).

8. The integrated rotary tillage, fertilization, and mulching machine for sweet potato planting according to claim 7, characterized in that, The diameter of the end of the longitudinal section of the limiting fit body (6) away from the roller body (112) is smaller than the diameter of the end of the limiting fit body (6) close to the roller body (112), and the longitudinal section of the limiting fit body (6) is an isosceles trapezoidal structure.