Mini-tiller

Abstract

The utility model relates to the technical field of agricultural machinery, especially micro rotary cultivator, it will support mechanism install on agricultural tractor, and will transmission mechanism with the gear on the belt pulley of agricultural tractor connection, carry out rotary tillage, through transmission mechanism will the power transmission of agricultural tractor to rotary tillage mechanism, make rotary tillage mechanism operation, again through height adjusting mechanism the height of rotary tillage mechanism is reduced, through rotary tillage mechanism to the land rotary tillage, thereby improve the practicability of equipment, including support mechanism, still including transmission mechanism, rotary tillage mechanism and height adjusting mechanism, transmission mechanism, rotary tillage mechanism and height adjusting mechanism all install on support mechanism, the support mechanism supports transmission mechanism, rotary tillage mechanism and height adjusting mechanism, transmission mechanism carries out transmission to power, height adjusting mechanism adjusts the height of rotary tillage mechanism, and rotary tillage mechanism carries out rotary tillage to the land.

Description

Technical Field

[0001] This utility model relates to the technical field of agricultural machinery, and in particular to a mini rotary tiller. Background Technology

[0002] A rotary tiller is a type of tillage machinery used in conjunction with a tractor. It is mainly used for plowing and harrowing operations. Existing rotary tillers, such as the right-drive bidirectional balanced rotary tiller disclosed in utility model patent CN2907203Y and the rotary tiller disclosed in utility model patent CN201957402U, can all achieve rotary tillage of the land.

[0003] However, during use, it was found that the existing rotary tillers have a relatively simple structure, making it inconvenient to adjust the position of the transmission gears. This makes it inconvenient to use with different types of agricultural tractors. In addition, the dustproof effect is poor, as dust easily adheres to the connection between the reducer and the main shaft. Furthermore, the curved blades have a large curvature, and the power requirements of agricultural equipment are high, resulting in poor practicality. Therefore, there is an urgent need for a mini rotary tiller to improve the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a miniature rotary tiller that has a support mechanism installed on an agricultural tractor and a transmission mechanism connected to a gear on the pulley of the agricultural tractor. When rotary tilling is performed, the power of the agricultural tractor is transmitted to the rotary tilling mechanism through the transmission mechanism, so that the rotary tilling mechanism can run. Then, the height of the rotary tilling mechanism is lowered through the height adjustment mechanism, and the land is rotary tilled by the rotary tilling mechanism, thereby improving the practicality of the equipment.

[0005] The mini rotary tiller of this utility model includes a support mechanism; it also includes a transmission mechanism, a rotary tillage mechanism and a height adjustment mechanism, all of which are mounted on the support mechanism.

[0006] The support mechanism supports the transmission mechanism, rotary tillage mechanism and height adjustment mechanism. The transmission mechanism transmits power, the height adjustment mechanism adjusts the height of the rotary tillage mechanism, and the rotary tillage mechanism performs rotary tillage on the land.

[0007] The support mechanism is installed on the agricultural tractor, and the transmission mechanism is connected to the gear on the pulley of the agricultural tractor. When rotary tilling is performed, the power of the agricultural tractor is transmitted to the rotary tilling mechanism through the transmission mechanism, so that the rotary tilling mechanism can run. Then, the height of the rotary tilling mechanism is lowered through the height adjustment mechanism, and the land is rotary tilled by the rotary tilling mechanism, thereby improving the practicality of the equipment.

[0008] Preferably, the support mechanism includes a frame and a support pipe, with the support pipe mounted on the frame; the frame and the support pipe work together to support the transmission mechanism, rotary tillage mechanism, and height adjustment mechanism, thereby improving the practicality of the equipment.

[0009] Preferably, the transmission mechanism includes a reducer, a transmission shaft, a transmission gear, a spring, a locking bolt, a ratchet assembly, a control mechanism, and a tension adjustment mechanism. The reducer is mounted on the rotary tillage mechanism and the transmission mechanism. The transmission shaft is rotatably mounted in the support tube. The transmission shaft is provided with a spline, and one end of the transmission shaft is connected to the input end of the reducer. The other end of the transmission shaft is provided with an adjustable section. The transmission gear is rotatably mounted on the adjustable section of the transmission shaft through the locking bolt, and the transmission gear can slide in the adjustable section. A limit sleeve is provided between the transmission gear and the locking bolt. The spring is mounted on the transmission shaft. The control mechanism and the tension adjustment mechanism are both mounted on the frame.

[0010] The ratchet assembly includes a first transmission component and a second transmission component. The first transmission component is slidably mounted on the drive shaft, and the second transmission component is fixedly mounted on the transmission gear. When the gear on the agricultural tractor pulley is located to the left of the transmission gear, the locking bolt is rotated to remove it from the drive shaft, and then the limiting sleeve is removed from the transmission gear. Simultaneously, the first and second transmission components are compressed by a spring, causing the transmission gear to move to the left, aligning it with the gear on the agricultural tractor pulley. The locking bolt is then reset. Similarly, when the gear on the agricultural tractor pulley is located to the right of the transmission gear, the limiting sleeve can be installed between the locking bolt and the transmission gear, aligning the transmission gear with the gear on the agricultural tractor pulley. When the gear on the tractor pulley is aligned to the left of the transmission gear, the transmission gear is connected to the gear on the agricultural tractor pulley via a chain. Simultaneously, the tension of the chain is adjusted by a tension regulating mechanism. Then, the tractor drives the transmission gear to rotate. A control mechanism then moves the first transmission component to the left, engaging it with the second transmission component to form a ratchet assembly. This causes the rotating transmission gear to drive the transmission shaft to rotate as well. The transmission shaft then transmits power to the reducer, which drives the rotary tillage mechanism. After rotary tillage is complete, the control mechanism moves the first transmission component to the right, stopping the transmission shaft from rotating, thus improving the equipment's practicality.

[0011] Preferably, the control mechanism includes a support plate, a lever, a connector, and a shift lever. The support plate is fixedly mounted on the frame, the lever is rotatably mounted on the support plate, and the bottom of the lever has an inverted F structure. The opening of the inverted F structure is engaged with the first transmission component, and the connector is hinged to the top of the lever. One end of the shift lever passes through the support plate and is connected to the connector. By moving the shift lever forward or backward, the lever is rotated via the connector. The lever causes the first transmission component to slide on the transmission shaft, allowing the first transmission component to engage or disengage with the transmission gear, thereby improving the practicality of the equipment.

[0012] Preferably, the tension adjustment mechanism includes a telescopic rod and a support wheel. The telescopic rod is mounted on the frame, and the support wheel is rotatably mounted on one end of the telescopic rod. By extending or retracting the telescopic rod, the position of the support wheel is adjusted so that the support wheel is located at the bottom of the chain. The support wheel then supports the chain, adjusts the chain tension, prevents the chain from falling off, and thus improves the practicality of the equipment.

[0013] Preferably, the rotary tillage mechanism includes a housing, dust baffles, a main shaft, multiple sets of curved blades, and two sets of dust covers. The housing is mounted on a height adjustment mechanism, the dust baffles are mounted on the rear of the housing, one end of the main shaft is rotatably mounted on one end of the housing, and the other end of the main shaft is mounted on the output end of a reducer. Multiple sets of curved blades are mounted on the main shaft, and the two sets of dust covers are respectively mounted at the connection between the main shaft and the housing and at the connection between the main shaft and the reducer. The reducer provides power to the main shaft, causing the main shaft to drive the multiple sets of curved blades to rotate, thus rotary tilling the land. At the same time, the two sets of dust covers protect the connection points at both ends of the main shaft, and the housing and dust baffles work together to shield the dust generated, thereby improving the practicality of the equipment.

[0014] Preferably, the height adjustment mechanism includes a second support tube, a third support tube, an arc-shaped rack, a bracket, a connecting column, a handle, a fixing frame, a limit pin, a spring, a brake cable, and a handbrake. The second and third support tubes are rotatably mounted on both ends of the first support tube. The reducer is fixedly mounted on the second support tube, the outer casing is fixedly mounted on the third support tube, the arc-shaped rack is fixedly mounted on the first support tube, the bracket is fixedly mounted on the second support tube, the handle is mounted on the bracket via the connecting column, the fixing frame is fixedly mounted on the side of the bracket, and the limit pin is slidably mounted on the fixing frame, with the top end of the limit pin extending above the fixing frame and the bottom end extending to... Below the fixed frame, the bottom end of the limit pin engages with the arc-shaped rack. One end of the spring is mounted on the limit pin, and the other end of the spring is supported on the fixed frame. The handbrake is mounted on the top of the connecting column, with one end of the brake cable mounted on the limit pin and the other end mounted on the handbrake. The user grips the handbrake, pulling the brake cable upwards to pull the limit pin, which then separates the bottom of the limit pin from the arc-shaped rack. The height of the housing can then be adjusted by pushing forward or pulling backward on the connecting column. After adjustment, the handbrake is released, and the elasticity of the limit pin allows the bottom of the limit pin to re-engage with the arc-shaped rack, maintaining the height of the housing and thus improving the practicality of the equipment.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: the support mechanism is installed on the agricultural tractor, and the transmission mechanism is connected to the gear on the pulley of the agricultural tractor. When rotary tilling is performed, the power of the agricultural tractor is transmitted to the rotary tilling mechanism through the transmission mechanism, so that the rotary tilling mechanism can run. Then, the height of the rotary tilling mechanism is lowered through the height adjustment mechanism, and the land is rotary tilled by the rotary tilling mechanism, thereby improving the practicality of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0017] Figure 2 This is the utility model Figure 1 A magnified structural diagram of part A in the diagram;

[0018] Figure 3 This is a schematic diagram of the second isometric structure of this utility model;

[0019] Figure 4 This is a utility model Figure 3 A schematic diagram of the enlarged structure of part B in the diagram;

[0020] Figure 5 This is a schematic diagram of the fourth isometric structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the fifth isometric structure of this utility model.

[0022] The following components are labeled in the attached diagram: 1. Frame; 2. Support tube one; 3. Reducer; 4. Drive shaft; 5. First transmission component; 6. Transmission gear; 7. Second transmission component; 8. Limit sleeve; 9. Spring one; 10. Locking bolt; 11. Support plate; 12. Lever; 13. Connecting component; 14. Gear lever; 15. Telescopic rod; 16. Support wheel; 17. Housing; 18. Dustproof baffle; 19. Main shaft; 20. Curved blade; 21. Dustproof cover; 22. Support tube two; 23. Support tube three; 24. Arc rack; 25. Brake; 26. Connecting column; 27. Handle; 28. Fixing frame; 29. ​​Limit pin; 30. Spring; 31. Brake cable; 32. Handbrake. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0024] Example 1

[0025] The mini rotary tiller includes a support mechanism; it also includes a transmission mechanism, a rotary tillage mechanism, and a height adjustment mechanism, all of which are mounted on the support mechanism.

[0026] The support mechanism supports the transmission mechanism, rotary tillage mechanism and height adjustment mechanism. The transmission mechanism transmits power, the height adjustment mechanism adjusts the height of the rotary tillage mechanism, and the rotary tillage mechanism performs rotary tillage on the land.

[0027] The support mechanism includes a frame 1 and a support tube 2, with the support tube 2 mounted on the frame 1;

[0028] The transmission mechanism includes a reducer 3, a transmission shaft 4, a transmission gear 6, a spring 9, a locking bolt 10, a ratchet assembly, a control mechanism, and a tension adjustment mechanism. The reducer 3 is mounted on the rotary tillage mechanism and the transmission mechanism. The transmission shaft 4 is rotatably mounted in the support tube 2. The transmission shaft 4 is provided with a spline, and one end of the transmission shaft 4 is connected to the input end of the reducer 3. The other end of the transmission shaft 4 is provided with an adjustable section. The transmission gear 6 is rotatably mounted on the adjustable section of the transmission shaft 4 through the locking bolt 10, and the transmission gear 6 can slide in the adjustable section. A limit sleeve 8 is provided between the transmission gear 6 and the locking bolt 10. The spring 9 is fitted on the transmission shaft 4. The control mechanism and the tension adjustment mechanism are both mounted on the frame 1.

[0029] The ratchet assembly includes a first transmission component 5 and a second transmission component 7. The first transmission component 5 is slidably mounted on the transmission shaft 4, and the second transmission component 7 is fixedly mounted on the transmission gear 6.

[0030] The control mechanism includes a support plate 11, a lever 12, a connector 13, and a shift lever 14. The support plate 11 is fixedly installed on the frame 1. The lever 12 is rotatably installed on the support plate 11. The bottom of the lever 12 has an inverted F structure. The opening of the inverted F structure is engaged with the first transmission component 5. The connector 13 is hinged to the top of the lever 12. One end of the shift lever 14 passes through the support plate 11 and is connected to the connector 13.

[0031] The tension adjustment mechanism includes a telescopic rod 15 and a support wheel 16. The telescopic rod 15 is mounted on the frame 1, and the support wheel 16 is rotatably mounted on one end of the telescopic rod 15.

[0032] The rotary tillage mechanism includes a housing 17, a dust baffle 18, a main shaft 19, multiple sets of curved blades 20, and two sets of dust covers 21. The housing 17 is mounted on a height adjustment mechanism, the dust baffle 18 is mounted on the rear of the housing 17, one end of the main shaft 19 is rotatably mounted on one end of the housing 17, and the other end of the main shaft 19 is mounted on the output end of the reducer 3. Multiple sets of curved blades 20 are all mounted on the main shaft 19, and the two sets of dust covers 21 are respectively mounted at the connection between the main shaft 19 and the housing 17 and at the connection between the main shaft 19 and the reducer 3.

[0033] Mount the frame 1 onto the agricultural tractor. When the gear on the agricultural tractor pulley is to the left of the transmission gear 6, rotate the locking bolt 10 to remove it from the drive shaft 4. Then remove the limiting sleeve 8 from the transmission gear 6. Simultaneously, the spring 9 presses the first transmission component 5 and the second transmission component 7, causing the transmission gear 6 to move to the left, aligning it with the gear on the agricultural tractor pulley. Then reset the locking bolt 10. Similarly, when the gear on the agricultural tractor pulley is to the right of the transmission gear 6, the limiting sleeve 8 can be installed between the locking bolt 10 and the transmission gear 6, aligning it with the gear on the agricultural tractor pulley when it is to the left. Then connect the transmission gear 6 to the gear on the agricultural tractor pulley via the chain. Finally, extend or retract the telescopic rod 15 to adjust the support wheel 1. The position of 6 is adjusted so that the support wheel 16 is at the bottom of the chain, and the support wheel 16 supports the chain, adjusting the chain tension to prevent the chain from falling off. Then, the user turns the gear lever 14 forward or backward, which drives the lever 12 to rotate through the connecting piece 13. The lever 12 causes the first transmission member 5 to slide on the transmission shaft 4, so that the first transmission member 5 is engaged with the transmission gear 6. Then, the rotating transmission gear 6 drives the transmission shaft 4 to rotate together. The transmission shaft 4 then transmits power to the reducer 3, which provides power to the main shaft 19, causing the main shaft 19 to drive multiple sets of curved blades 20 to rotate, so that the multiple sets of curved blades 20 can till the land. At the same time, two sets of dust covers 21 protect the connection points at both ends of the main shaft 19. The outer shell 17 and the dust baffle 18 work together to block the dust that is stirred up, thereby improving the practicality of the equipment.

[0034] Example 2

[0035] like Figures 1 to 6 As shown, the mini rotary tiller includes a support mechanism; it also includes a transmission mechanism, a rotary tillage mechanism, and a height adjustment mechanism, all of which are mounted on the support mechanism.

[0036] The support mechanism supports the transmission mechanism, rotary tillage mechanism and height adjustment mechanism. The transmission mechanism transmits power, the height adjustment mechanism adjusts the height of the rotary tillage mechanism, and the rotary tillage mechanism performs rotary tillage on the land.

[0037] The support mechanism includes a frame 1 and a support tube 2, with the support tube 2 mounted on the frame 1;

[0038] The transmission mechanism includes a reducer 3, a transmission shaft 4, a transmission gear 6, a spring 9, a locking bolt 10, a ratchet assembly, a control mechanism, and a tension adjustment mechanism. The reducer 3 is mounted on the rotary tillage mechanism and the transmission mechanism. The transmission shaft 4 is rotatably mounted in the support tube 2. The transmission shaft 4 is provided with a spline, and one end of the transmission shaft 4 is connected to the input end of the reducer 3. The other end of the transmission shaft 4 is provided with an adjustable section. The transmission gear 6 is rotatably mounted on the adjustable section of the transmission shaft 4 through the locking bolt 10, and the transmission gear 6 can slide in the adjustable section. A limit sleeve 8 is provided between the transmission gear 6 and the locking bolt 10. The spring 9 is fitted on the transmission shaft 4. The control mechanism and the tension adjustment mechanism are both mounted on the frame 1.

[0039] The ratchet assembly includes a first transmission component 5 and a second transmission component 7. The first transmission component 5 is slidably mounted on the transmission shaft 4, and the second transmission component 7 is fixedly mounted on the transmission gear 6.

[0040] The control mechanism includes a support plate 11, a lever 12, a connector 13, and a shift lever 14. The support plate 11 is fixedly installed on the frame 1. The lever 12 is rotatably installed on the support plate 11. The bottom of the lever 12 has an inverted F structure. The opening of the inverted F structure is engaged with the first transmission component 5. The connector 13 is hinged to the top of the lever 12. One end of the shift lever 14 passes through the support plate 11 and is connected to the connector 13.

[0041] The tension adjustment mechanism includes a telescopic rod 15 and a support wheel 16. The telescopic rod 15 is mounted on the frame 1, and the support wheel 16 is rotatably mounted on one end of the telescopic rod 15.

[0042] The rotary tillage mechanism includes a housing 17, a dust baffle 18, a main shaft 19, multiple sets of curved blades 20, and two sets of dust covers 21. The housing 17 is mounted on a height adjustment mechanism, the dust baffle 18 is mounted on the rear of the housing 17, one end of the main shaft 19 is rotatably mounted on one end of the housing 17, and the other end of the main shaft 19 is mounted on the output end of the reducer 3. Multiple sets of curved blades 20 are all mounted on the main shaft 19, and the two sets of dust covers 21 are respectively mounted at the connection between the main shaft 19 and the housing 17 and at the connection between the main shaft 19 and the reducer 3.

[0043] The height adjustment mechanism includes a second support tube 22, a third support tube 23, an arc-shaped rack 24, a bracket 25, a connecting column 26, a handle 27, a fixing frame 28, a limit pin 29, a spring 30, a brake cable 31, and a handbrake 32. The second support tube 22 and the third support tube 23 are rotatably mounted on both ends of the first support tube 2. The reducer 3 is fixedly mounted on the second support tube 22, the outer casing 17 is fixedly mounted on the third support tube 23, the arc-shaped rack 24 is fixedly mounted on the first support tube 2, the bracket 25 is fixedly mounted on the second support tube 22, and the handle 27 is mounted via the connecting column 26. On the bracket 25, the fixing bracket 28 is fixedly installed on the side end of the bracket 25, the limiting pin 29 is slidably installed on the fixing bracket 28, and the top end of the limiting pin 29 extends to the top of the fixing bracket 28, the bottom end of the limiting pin 29 extends to the bottom of the fixing bracket 28, and the bottom end of the limiting pin 29 meshes with the arc-shaped rack 24. One end of the spring 30 is installed on the limiting pin 29, and the other end of the spring 30 is supported on the fixing bracket 28. The handbrake 32 is installed on the top of the connecting column 26, one end of the brake cable 31 is installed on the limiting pin 29, and the other end of the brake cable 31 is installed on the handbrake 32.

[0044] Mount the frame 1 onto the agricultural tractor. When the gear on the agricultural tractor pulley is to the left of the transmission gear 6, rotate the locking bolt 10 to remove it from the drive shaft 4. Then remove the limiting sleeve 8 from the transmission gear 6. Simultaneously, spring 9 presses the first transmission component 5 and the second transmission component 7, causing the transmission gear 6 to move to the left, aligning it with the gear on the agricultural tractor pulley. Then reset the locking bolt 10. Similarly, when the gear on the agricultural tractor pulley is to the right of the transmission gear 6, the limiting sleeve 8 can be installed between the locking bolt 10 and the transmission gear 6, aligning the transmission gear 6 with the gear on the agricultural tractor pulley when it is to the left of the transmission gear 6. Then, the transmission gear 6 is connected to the drive shaft 4 via the chain. Gear 6 connects to the gear on the pulley of the agricultural tractor. Then, by extending or retracting the telescopic rod 15, the position of the support wheel 16 is adjusted so that the support wheel 16 is located at the bottom of the chain. The support wheel 16 then supports the chain, adjusts the chain tension, and prevents the chain from falling off. Afterward, the user moves the gear lever 14 in the forward or reverse direction, which drives the lever 12 to rotate via the connecting member 13. The lever 12 causes the first transmission member 5 to slide on the transmission shaft 4, so that the first transmission member 5 is engaged with the transmission gear 6. The rotating transmission gear 6 then drives the transmission shaft 4 to rotate together. The transmission shaft 4 then transmits power to the reducer 3, which provides power to the main shaft 19, causing the main shaft 19 to drive multiple sets of curved blades 20 to rotate. The user grips the handbrake 32, causing the brake cable 31 to pull upwards and causing the limit pin 29 to separate from the arc-shaped rack 24. Then, by pushing forward or pulling backwards the connecting column 26, the height of the outer casing 17 is adjusted. After adjustment, the handbrake 32 is released, and the elasticity of the limit pin 29 causes the bottom of the limit pin 29 to re-engage with the arc-shaped rack 24, maintaining the height of the outer casing 17. This allows multiple sets of curved blades 20 to rotary till the land. At the same time, two sets of dust covers 21 protect the connection points at both ends of the main shaft 19. The outer casing 17 and the dust baffle 18 work together to shield the dust generated, thereby improving the practicality of the equipment.

[0045] The frame 1, reducer 3, and handbrake 32 of this utility model's mini rotary tiller are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative effort from those skilled in the art.

[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A mini rotary tiller, including a support mechanism; characterized in that, It also includes a transmission mechanism, a rotary tillage mechanism, and a height adjustment mechanism, all of which are mounted on the support mechanism; The support mechanism supports the transmission mechanism, rotary tillage mechanism and height adjustment mechanism. The transmission mechanism transmits power, the height adjustment mechanism adjusts the height of the rotary tillage mechanism, and the rotary tillage mechanism performs rotary tillage on the land. The support mechanism includes a frame (1) and a support tube (2), with the support tube (2) mounted on the frame (1); The transmission mechanism includes a reducer (3), a transmission shaft (4), a transmission gear (6), a spring (9), a locking bolt (10), a ratchet assembly, a control mechanism, and a tension adjustment mechanism. The reducer (3) is installed on the rotary tillage mechanism and the transmission mechanism. The transmission shaft (4) is rotatably installed in the support tube (2). The transmission shaft (4) is provided with a spline, and one end of the transmission shaft (4) is connected to the input end of the reducer (3). The other end of the transmission shaft (4) is provided with an adjustable section. The transmission gear (6) is rotatably installed on the adjustable section of the transmission shaft (4) through the locking bolt (10), and the transmission gear (6) can slide in the adjustable section. A limit sleeve (8) is provided between the transmission gear (6) and the locking bolt (10). The spring (9) is fitted on the transmission shaft (4). The control mechanism and the tension adjustment mechanism are both installed on the frame (1). The ratchet assembly includes a first transmission component (5) and a second transmission component (7). The first transmission component (5) is slidably mounted on the transmission shaft (4), and the second transmission component (7) is fixedly mounted on the transmission gear (6).

2. The mini rotary tiller as described in claim 1, characterized in that, The control mechanism includes a support plate (11), a lever (12), a connector (13), and a shift lever (14). The support plate (11) is fixedly installed on the frame (1). The lever (12) is rotatably installed on the support plate (11). The bottom of the lever (12) is an inverted F structure. The opening of the inverted F structure is engaged with the first transmission component (5). The connector (13) is hinged to the top of the lever (12). One end of the shift lever (14) passes through the support plate (11) and is connected to the connector (13).

3. The mini rotary tiller as described in claim 1, characterized in that, The tension adjustment mechanism includes a telescopic rod (15) and a support wheel (16). The telescopic rod (15) is mounted on the frame (1), and the support wheel (16) is rotatably mounted on one end of the telescopic rod (15).

4. The mini rotary tiller as described in claim 1, characterized in that, The rotary tillage mechanism includes a housing (17), a dust baffle (18), a main shaft (19), multiple sets of curved blades (20), and two sets of dust covers (21). The housing (17) is mounted on the height adjustment mechanism, the dust baffle (18) is mounted on the rear of the housing (17), one end of the main shaft (19) is rotatably mounted on one end of the housing (17), and the other end of the main shaft (19) is mounted on the output end of the reducer (3). Multiple sets of curved blades (20) are mounted on the main shaft (19), and the two sets of dust covers (21) are respectively mounted at the connection between the main shaft (19) and the housing (17) and at the connection between the main shaft (19) and the reducer (3).

5. The mini rotary tiller as described in claim 4, characterized in that, The height adjustment mechanism includes a second support tube (22), a third support tube (23), an arc-shaped rack (24), a bracket (25), a connecting column (26), a handle (27), a fixing frame (28), a limit pin (29), a spring (30), a brake cable (31), and a handbrake (32). The second support tube (22) and the third support tube (23) are rotatably mounted on both ends of the first support tube (2). The reducer (3) is fixedly mounted on the second support tube (22), the outer shell (17) is fixedly mounted on the third support tube (23), the arc-shaped rack (24) is fixedly mounted on the first support tube (2), the bracket (25) is fixedly mounted on the second support tube (22), and the handle (27) is connected to the connecting column (26). Mounted on bracket (25), fixed bracket (28) is fixedly mounted on the side end of bracket (25), limit pin (29) is slidably mounted on fixed bracket (28), and the top end of limit pin (29) extends to the top of fixed bracket (28), the bottom end of limit pin (29) extends to the bottom of fixed bracket (28), and the bottom end of limit pin (29) meshes with arc-shaped rack (24), one end of spring (30) is mounted on limit pin (29), the other end of spring (30) is supported on fixed bracket (28), handbrake (32) is mounted on the top of connecting column (26), one end of brake line (31) is mounted on limit pin (29), and the other end of brake line (31) is mounted on handbrake (32).

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