Pure electric mini-tiller provided with solar power generation system

Abstract

The invention relates to the technical field of mini-tillers, in particular to a pure electric mini-tiller provided with a solar power generation system. According to the technical scheme, the device comprises a mounting frame and a working knife rest, a driving rotating shaft is rotationally connected to the bottom of the mounting frame, walking wheels are fixed to the two ends of the driving rotating shaft, a driving motor and a gearbox for driving the driving rotating shaft to rotate are arranged at the upper end of the mounting frame, and the output end of the gearbox extends out of the bottom of the mounting frame and is fixedly provided with an output bevel gear; a driving bevel gear meshed with the output bevel gear is fixed to the driving rotating shaft, and a center frame is fixed to the front side of the bottom of the mounting frame. Solar energy is used for auxiliary power supply, electric energy is stored, the energy-saving purpose can be effectively achieved, the power-on switches are arranged on the hand grips of the two hands, normal power supply of the whole equipment can be achieved only when the equipment is tightly gripped by the two hands or one hand, the use safety of the equipment is improved, and potential safety hazards caused by the fact that the equipment slips out of the hand are avoided.

Description

Technical Field

[0001] This invention relates to the field of micro-tiller technology, specifically to a pure electric micro-tiller equipped with a solar power generation system. Background Technology

[0002] Mini tillers are small agricultural machines widely used in small plots of farmland, orchards, and vegetable fields. Due to their compact size and ease of operation, they have become a substitute for traditional ox-drawn plows. With their compact size, flexibility, versatility, and cost-effectiveness, mini tillers have become an important tool in modern agricultural production. Whether in small plots of farmland, hilly areas, or orchards and greenhouses, they greatly improve work efficiency and reduce labor intensity. With the advancement of agricultural modernization, the market prospects for mini tillers are broad, and they are expected to play a more significant role in even more scenarios in the future.

[0003] Common mini-tillers are primarily powered by diesel engines, requiring refueling each time they are used, resulting in high energy consumption and increased farming costs. Furthermore, during operation, the operator typically needs to hold the handle firmly; if the handle slips, the mini-tiller will move uncontrollably on the field axis or spin in place. If someone attempts to shut it off abruptly, there is a high risk of personal injury. Therefore, a structure that automatically shuts off the machine after an accidental slip is needed. In actual operation, the handle and the tilling mechanism should be aligned. When tilling the soil, the worker needs to walk on the soft, loose soil after tilling. The soft soil makes walking difficult and increases the risk of falls. Walking to the side of the tilling area makes machine operation inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a pure electric micro-tiller equipped with a solar power generation system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A mounting frame and a working tool holder are included. A drive shaft is rotatably connected to the bottom of the mounting frame, and wheels are fixed at both ends of the drive shaft. A drive motor and a gearbox are installed at the upper end of the mounting frame to drive the drive shaft. The output end of the gearbox extends out from the bottom of the mounting frame and is fixed with an output bevel gear. A drive bevel gear meshing with the output bevel gear is fixed on the drive shaft. A central frame is fixed to the front side of the bottom of the mounting frame, and a mounting shaft is rotatably connected to the front end of the central frame. The working tool holder is mounted on the mounting shaft and located on both sides of the central frame. An outer protective box is fixed to the outer side of the upper end of the mounting frame. Flip panels are hinged to both sides of the outer protective box. Solar panels are fixed to the outer side of the flip panels and the top of the outer protective box. An energy storage power supply is fixed to the upper end of the mounting frame. An unfolding assembly for unfolding the flip panels is provided inside the outer protective box. A handrail is installed at the upper end of the gearbox, and the bottom of the handrail is rotatably connected to the upper end of the gearbox via a rotating assembly. A handle and a controller are provided at the upper end of the handrail, and a power-off safety component for releasing the handle is provided on the handle.

[0006] Preferably, the hands-free power-off safety component includes a power switch and a pressing plate. The power switch is a type of touch switch. The power switches in the two hand grips are connected in parallel, which can ensure that the power is still on when gripped with one hand, making it more convenient for actual operation. The bottom of the hand grip has a bottom groove, the power switch is fixed in the bottom groove, and the upper end of the pressing plate is slidably connected in the bottom groove.

[0007] Preferably, a pair of limiting rods are fixed at the upper end of the pressing plate, and a limiting groove is formed on the side wall of the bottom groove at a position corresponding to the limiting rod. The upper end of the limiting rod is slidably connected in the limiting groove, and an ejection spring is fixed between the side wall of the bottom groove and the pressing plate. The ejection spring is located outside the limiting rod.

[0008] Preferably, the rotating assembly includes an annular sleeve and a connecting box. The annular sleeve is fixed to the upper end of the gearbox, and a connecting plate is fixed to the bottom of the connecting box. The connecting plate is rotatably connected inside the annular sleeve, and the upper end of the connecting box is fixedly connected to the bottom of the armrest.

[0009] Preferably, a fixed toothed ring plate is fixed inside the annular sleeve, and a telescopic toothed ring plate is installed at the bottom of the connecting box and extending out of the connecting box. The fixed toothed ring plate and the telescopic toothed ring plate abut against each other, and their tooth grooves mesh with each other.

[0010] Preferably, a lifting plate is slidably connected inside the connecting box, the bottom of the lifting plate is fixed to the telescopic toothed ring plate, and a cylinder is fixed at equal intervals at the upper end of the connecting box, with the output end of the cylinder fixed on the lifting plate.

[0011] Preferably, the unfolding assembly includes a horizontal plate and support bars. The horizontal plate is fixed to the upper inner side of the outer protective box. A pair of sliding plates are slidably connected to the upper end of the horizontal plate. A set of support bars is fixed to the side of the sliding plates away from each other. The side wall of the outer protective box and the position corresponding to the support bars are provided with grid grooves. Magnets are fixed to the lower sides of the outer protective box. When the flip plate is folded, the magnets can be used to attract the bottom of the flip plate to ensure stability.

[0012] Preferably, a bidirectional lead screw is rotatably connected to the upper end of the horizontal plate. The bidirectional lead screw passes through the sliding plate and is threadedly connected to the sliding plate. A worm wheel is fixed at the middle position of the bidirectional lead screw. A worm is rotatably connected inside the horizontal plate at a position corresponding to the worm wheel. The front end of the central shaft of the worm extends out of the horizontal plate and is fixed with a rocker arm.

[0013] Preferably, a drive shaft is rotatably connected inside the central frame, and drive bevel gears are fixed at both ends of the drive shaft. A driven bevel gear is fixed on the mounting shaft. The drive bevel gear meshes with the drive bevel gear and the driven bevel gear respectively. Mudguards are fixed on both sides of the central frame and above the working tool holder.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Driven by a drive motor and driven by a transmission shaft, the micro-tiller rotates at both the walking and working ends. Before use, only electrical energy needs to be replenished, reducing operating costs. Furthermore, by unfolding the flap, it can be charged via a solar charging panel, and the electrical energy is stored in an energy storage power source, further achieving energy conservation.

[0016] 2. A power-off protection structure is installed on the handle. If the equipment is accidentally released from the hand, the power will be cut off immediately, ensuring that the equipment stops immediately after the release and will not continue to operate without control, greatly increasing the safety of using the mini tiller.

[0017] 3. A rotatable structure is set at the bottom of the handrail. During operation, the handrail can be rotated to a position away from the working blade holder. After the equipment turns the soil, the personnel do not need to walk on the soft soil. They can rotate it to the side where the soil has not been turned or the hard soil on the ridge to walk, reducing the risk of falling. At the same time, it will make it easier for personnel to follow the equipment. Attached Figure Description

[0018] Figure 1 A side cross-sectional view of the pure electric micro-tiller with the solar power generation system installed in this invention.

[0019] Figure 2 This invention relates to a pure electric micro-tiller equipped with a solar power generation system. Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 3 This invention relates to a pure electric micro-tiller equipped with a solar power generation system. Figure 1 Enlarged structural diagram at point B;

[0021] Figure 4 A schematic diagram of the internal structure of the outer protective box of the pure electric micro-tiller with the solar power generation system installed in this invention;

[0022] Figure 5 This invention relates to a pure electric micro-tiller equipped with a solar power generation system. Figure 4 Enlarged structural diagram at point C;

[0023] Figure 6 This is a schematic diagram of the combined structure of the sliding plate and support strip of the pure electric micro-tiller with the solar power generation system installed in this invention.

[0024] Figure 7 This is a schematic diagram of the combined structure of the fixed toothed ring plate and the telescopic toothed ring plate of the pure electric micro-tiller with the solar power generation system installed in this invention.

[0025] In the diagram: 1. Mounting bracket; 11. Drive motor; 12. Gearbox; 13. Energy storage power supply; 14. Output bevel gear; 2. Traveling wheel; 21. Drive shaft; 22. Drive bevel gear; 23. Center frame; 24. Driven bevel gear; 25. Drive shaft; 26. Drive bevel gear; 27. Working tool holder; 28. Mudguard; 3. Outer protective box; 31. Flip plate; 32. Grille groove; 33. Horizontal plate; 34. Sliding plate; 35. Bidirectional 36. Lead screw; 37. Worm gear; 38. Worm; 39. Support bar; 4. Rocker arm; 50. Solar panel; 61. Handrail; 52. Controller; 53. Hand grip; 54. Bottom groove; 55. Power switch; 56. Pressing plate; 57. Limiting rod; 58. Limiting groove; 69. Ejector spring; 70. Ring sleeve; 61. Fixed toothed ring plate; 72. Connecting box; 73. Connecting plate; 74. Telescopic toothed ring plate; 75. Lifting plate; 76. Cylinder. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1-7This invention provides a technical solution comprising a mounting frame 1 and a working tool holder 27. A drive shaft 21 is rotatably connected to the bottom of the mounting frame 1, with wheels 2 fixed at both ends of the drive shaft 21. A drive motor 11 and a gearbox 12 are mounted on the upper end of the mounting frame 1 to drive the drive shaft 21. The output end of the gearbox 12 extends beyond the bottom of the mounting frame 1 and is fixed with an output bevel gear 14. A drive bevel gear 22, meshing with the output bevel gear 14, is fixed on the drive shaft 21. A central frame 23 is fixed to the front side of the bottom of the mounting frame 1, with a mounting shaft rotatably connected to the front end of the central frame 23. The working tool holder 27 is mounted on the mounting shaft and located on both sides of the central frame 23. An outer protective box 3 is fixed to the outer side of the upper end of the mounting frame 1, with flaps 31 hinged to both sides of the outer protective box 3. Solar panels 4 are fixed to the outer side of the outer protective box 31 and the top of the outer protective box 3. A power storage power supply 13 is fixed to the upper end of the mounting frame 1. An unfolding component for unfolding the flip plate 31 is set inside the outer protective box 3. A handrail 5 is installed on the upper end of the gearbox 12. The bottom of the handrail 5 is rotatably connected to the upper end of the gearbox 12 through a rotating component. A handle 52 and a controller 51 are set on the upper end of the handrail 5. A power-off safety component for disengaging the hand is set on the handle 52. A drive shaft 25 is rotatably connected inside the center frame 23. A drive bevel gear 26 is fixed at both ends of the drive shaft 25. A driven bevel gear 24 is fixed on the mounting shaft. The drive bevel gear 26 meshes with the drive bevel gear 22 and the driven bevel gear 24 respectively. Mudguards 28 are fixed on both sides of the center frame 23 and above the working tool holder 27.

[0028] The hands-free power-off safety component includes a power switch 54 and a pressing plate 55. The bottom of the handle 52 has a bottom groove 53. The power switch 54 is fixed in the bottom groove 53. The upper end of the pressing plate 55 is slidably connected in the bottom groove 53. A pair of limiting rods 56 are fixed on the upper end of the pressing plate 55. A limiting groove 57 is opened on the side wall of the bottom groove 53 at a position corresponding to the limiting rods 56. The upper end of the limiting rods 56 is slidably connected in the limiting groove 57. An ejection spring 58 is fixed between the side wall of the bottom groove 53 and the pressing plate 55. The ejection spring 58 is located outside the limiting rods 56.

[0029] The rotating assembly includes an annular sleeve 6 and a connecting box 7. The annular sleeve 6 is fixed to the upper end of the gearbox 12. A connecting plate 71 is fixed to the bottom of the connecting box 7 and is rotatably connected inside the annular sleeve 6. The upper end of the connecting box 7 is fixedly connected to the bottom of the armrest 5. A fixed toothed ring plate 61 is fixed inside the annular sleeve 6. A telescopic toothed ring plate 72 is installed at the bottom of the connecting box 7 and extending out of the connecting box 7. The fixed toothed ring plate 61 and the telescopic toothed ring plate 72 abut against each other, and their tooth grooves mesh with each other. A lifting plate 73 is slidably connected inside the connecting box 7. The bottom of the lifting plate 73 is connected to the extension... The telescopic toothed ring plate 72 is fixed, and cylinders 74 are fixed at equal intervals on the upper end of the connecting box 7. The output end of the cylinders 74 is fixed on the lifting plate 73. The cylinders 74 can drive the lifting plate 73 to extend and retract, which in turn drives the telescopic toothed ring plate 72 to extend and retract. When the telescopic toothed ring plate 72 extends downward, it can engage with the upper end of the fixed toothed ring plate 61, thereby preventing the connecting box 7 from rotating and ensuring the stability of the handrail 5. Conversely, when the fixed toothed ring plate 61 and the telescopic toothed ring plate 72 disengage, the handrail 5 can rotate at any angle.

[0030] The unfolding assembly includes a horizontal plate 33 and support bars 38. The horizontal plate 33 is fixed to the upper inner side of the outer protective box 3. A pair of sliding plates 34 are slidably connected to the upper end of the horizontal plate 33. A set of support bars 38 is fixed to the side of the sliding plates 34 away from each other. The side wall of the outer protective box 3 is provided with grid grooves 32 at positions corresponding to the support bars 38. Magnets are fixed to the lower sides of the outer protective box 3. A bidirectional lead screw 35 is rotatably connected to the upper end of the horizontal plate 33. The bidirectional lead screw 35 passes through the sliding plates 34 and is threadedly connected to the sliding plates 34. A worm gear 36 is fixed at the middle position of the bidirectional lead screw 35. A worm wheel 36 is rotatably connected to the inner side of the horizontal plate 33 at a position corresponding to the worm gear 36. The worm gear 37 has a central shaft that extends out of the horizontal plate 33 and is fixed with a rocker arm 39. The flap 31 is unfolded and rotated to a position horizontal with the upper end of the outer protective box 3. At this time, the solar power generation panel 4 at the upper end of the flap 31 and the outer protective box 3 is used to charge the power supply, so as to achieve the purpose of energy saving. When the flap 31 is unfolded, the rocker arm 39 can drive the worm gear 37 to rotate. Then, the transmission of the worm wheel 36 can drive the bidirectional lead screw 35 to rotate, which in turn drives the sliding plate 34 to slide to both sides, so that the support bar 38 can extend out from the grid groove 32 to support the bottom of the flap 31.

[0031] Working principle: Driven by the drive motor 11 and the gearbox 12, the output bevel gear 14 rotates. The drive bevel gear 22 then drives the drive shaft 21, which in turn rotates the walking wheels 2, allowing the tiller to move in the field. The rotation of the drive bevel gear 22, along with the transmission bevel gear 26 and drive shaft 25, drives the mounting shaft, which in turn rotates the working blade holder 27. The working blade holder 27 can be installed according to actual needs, allowing for field tilling or weeding operations. It also requires charging. When the flap 31 is unfolded and rotated to a position horizontal with the upper end of the outer protective box 3, the power supply is charged using the flap 31 and the solar panel 4 at the upper end of the outer protective box 3, achieving energy saving. During this process, when the flap 31 is unfolded, the rocker arm 39 drives the worm gear 37 to rotate, and the worm wheel 36 drives the bidirectional lead screw 35 to rotate, thereby causing the sliding plate 34 to slide to both sides. This allows the support bar 38 to extend from the grid groove 32, supporting the bottom of the flap 31 and ensuring the flap 31 remains stable in a horizontal position. Simultaneously, during the unfolding process... During earthmoving operations, the handrail 5 can be rotated at a certain angle to ensure that when holding the handrail 5, one does not need to walk on the loose soil surface after turning, reducing the difficulty of following the equipment. During this process, the cylinder 74 drives the lifting plate 73 to extend and retract, which in turn drives the telescopic toothed plate 72 to extend and retract. When the telescopic toothed plate 72 extends downwards, it engages with the upper end of the fixed toothed plate 61, thus preventing the connecting box 7 from rotating and ensuring the stability of the handrail 5. Conversely, when the fixed toothed plate 61 disengages from the telescopic toothed plate 72, the handrail 5 can rotate freely, ensuring… Personnel can stand in the designated position to grip the handrail 5 and control the drive above the controller 51. If the personnel accidentally let go, the pressure plate 55 will lose the pressure of the hand, and then under the push of the ejector spring 58, the pressure plate 55 will extend outward, losing the pressure on the power switch 54, which will result in the inability to supply power to the entire equipment, achieving the purpose of immediate shutdown. When using, at least one hand is required to grip the handle 52 tightly to press the pressure plate 55 and press the power switch 54 to achieve normal power supply, increase the safety of equipment use, and reduce the safety risks caused by human negligence.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pure electric micro-tiller equipped with a solar power generation system, comprising a mounting frame (1) and a working blade holder (27), characterized in that: The mounting bracket (1) is rotatably connected to a drive shaft (21) at its bottom. Wheels (2) are fixed to both ends of the drive shaft (21). A drive motor (11) and a gearbox (12) are mounted on the upper end of the mounting bracket (1) to drive the drive shaft (21). The output end of the gearbox (12) extends out from the bottom of the mounting bracket (1) and is fixed with an output bevel gear (14). A drive bevel gear (22) meshing with the output bevel gear (14) is fixed on the drive shaft (21). A center frame (23) is fixed to the front side of the bottom of the mounting bracket (1). A mounting shaft is rotatably connected to the front end of the center frame (23). The working tool holder (27) is mounted on the mounting shaft and located within the center frame (21). 3) On both sides, an outer protective box (3) is fixed on the outer side of the upper end of the mounting frame (1). A flap (31) is hinged on both sides of the outer protective box (3). A solar power generation panel (4) is fixed on the outer side of the flap (31) and the top of the outer protective box (3). An energy storage power supply (13) is fixed on the upper end of the mounting frame (1). An unfolding component for unfolding the flap (31) is provided inside the outer protective box (3). A handrail (5) is installed on the upper end of the gearbox (12). The bottom of the handrail (5) is rotatably connected to the upper end of the gearbox (12) through a rotating component. A handle (52) and a controller (51) are provided on the upper end of the handrail (5). A power-off safety component for disengaging the hand is provided on the handle (52).

2. The pure electric micro-tiller with a solar power generation system as described in claim 1, characterized in that: The power-off safety component includes a power switch (54) and a pressing plate (55). The bottom of the handle (52) has a bottom groove (53). The power switch (54) is fixed in the bottom groove (53). The upper end of the pressing plate (55) is slidably connected in the bottom groove (53).

3. The pure electric micro-tiller with a solar power generation system as described in claim 2, characterized in that: A pair of limiting rods (56) are fixed at the upper end of the pressing plate (55). A limiting groove (57) is opened on the side wall of the bottom groove (53) at a position corresponding to the limiting rods (56). The upper end of the limiting rod (56) is slidably connected in the limiting groove (57). An ejection spring (58) is fixed between the side wall of the bottom groove (53) and the pressing plate (55). The ejection spring (58) is located outside the limiting rod (56).

4. The pure electric micro-tiller with a solar power generation system as described in claim 1, characterized in that: The rotating assembly includes an annular sleeve (6) and a connecting box (7). The annular sleeve (6) is fixed to the upper end of the gearbox (12). A connecting plate (71) is fixed to the bottom of the connecting box (7). The connecting plate (71) is rotatably connected inside the annular sleeve (6). The upper end of the connecting box (7) is fixedly connected to the bottom of the handrail (5).

5. The pure electric micro-tiller with a solar power generation system as described in claim 4, characterized in that: A fixed toothed ring plate (61) is fixed inside the annular sleeve (6), and a telescopic toothed ring plate (72) is installed at the bottom of the connecting box (7) and extending out of the connecting box (7). The fixed toothed ring plate (61) and the telescopic toothed ring plate (72) abut against each other, and their tooth grooves mesh with each other.

6. The pure electric micro-tiller with a solar power generation system as described in claim 5, characterized in that: A lifting plate (73) is slidably connected inside the connecting box (7). The bottom of the lifting plate (73) is fixed to the telescopic toothed ring plate (72). A cylinder (74) is fixed at equal distances at the upper end of the connecting box (7). The output end of the cylinder (74) is fixed on the lifting plate (73).

7. The pure electric micro-tiller with a solar power generation system as described in claim 1, characterized in that: The unfolding assembly includes a horizontal plate (33) and a support bar (38). The horizontal plate (33) is fixed to the upper inner side of the outer protective box (3). A pair of sliding plates (34) are slidably connected to the upper end of the horizontal plate (33). A set of support bars (38) is fixed to the side of the sliding plate (34) away from each other. The outer protective box (3) has grid grooves (32) on its side wall and at positions corresponding to the support bars (38). Magnets are fixed to the lower sides of the outer protective box (3).

8. The pure electric micro-tiller with a solar power generation system as described in claim 7, characterized in that: A bidirectional lead screw (35) is rotatably connected to the upper end of the horizontal plate (33). The bidirectional lead screw (35) passes through the sliding plate (34) and is threadedly connected to the sliding plate (34). A worm wheel (36) is fixed in the middle position of the bidirectional lead screw (35). A worm (37) is rotatably connected inside the horizontal plate (33) at a position corresponding to the worm wheel (36). The front end of the central shaft of the worm (37) extends out of the horizontal plate (33) and is fixed with a rocker arm (39).

9. The pure electric micro-tiller with a solar power generation system as described in claim 1, characterized in that: A drive shaft (25) is rotatably connected inside the central frame (23). Both ends of the drive shaft (25) are fixed with drive bevel gears (26). A driven bevel gear (24) is fixed on the mounting shaft. The drive bevel gear (26) meshes with the drive bevel gear (22) and the driven bevel gear (24) respectively. Mudguards (28) are fixed on both sides of the central frame (23) and above the working tool holder (27).

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