Portable dual-mode farming machine

Abstract

The application relates to a portable dual-form agricultural tiller, belonging to the field of agricultural tillers, which comprises an agricultural tiller body, a transmission shaft, an adjusting seat, a tiller, a positioning piece, a first transmission mechanism, a walking wheel and a second transmission mechanism, the transmission shaft is vertically rotatably arranged on the agricultural tiller body and is used for rotating under the driving of the agricultural tiller body, the adjusting seat is vertically slidably arranged on the agricultural tiller body, the tiller is rotatably arranged on the adjusting seat, the positioning piece is arranged on the adjusting seat and is used for positioning the adjusting seat on the agricultural tiller body, the first transmission mechanism is arranged on the adjusting seat and is used for driving the tiller to rotate when the transmission shaft rotates, the walking wheel is rotatably arranged on the agricultural tiller body, and the second transmission mechanism is arranged on the walking wheel and is used for driving the walking wheel to rotate when the transmission shaft rotates. The application has the effect of improving the time-consuming and labor-consuming problem of small agricultural tillers.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery, and in particular to a portable dual-mode agricultural tiller. Background Technology

[0002] When farming in mountainous or hilly areas with complex terrain, large farming equipment is difficult to operate flexibly due to the complex terrain conditions. Therefore, small farming machines, which are more flexible in movement and operation, are needed for farming.

[0003] Currently, when transporting small agricultural tillers to the tillage area, the wheels are installed on the tiller's output shaft, allowing direct rotation of the wheels to propel the machine to the tillage area. Once there, the wheels are removed, and the blades are reinstalled on the output shaft to drive the blades for tilling. However, the process of installing and removing the wheels and blades is rather cumbersome, and users need to carry the blades separately when driving the tiller to or from the tillage area, resulting in the time-consuming and labor-intensive use of small agricultural tillers. Summary of the Invention

[0004] To address the problem of time-consuming and labor-intensive use of small agricultural tillers, this application provides a portable dual-mode agricultural tiller.

[0005] The portable dual-mode agricultural tiller provided in this application adopts the following technical solution: A portable dual-mode tiller includes a tiller body, a transmission shaft, an adjusting seat, tillers, a positioning component, a first transmission mechanism, wheels, and a second transmission mechanism. The transmission shaft is vertically rotatably mounted on the tiller body and is used to rotate under the drive of the tiller body. The adjusting seat is vertically slidably mounted on the tiller body. The tillers are rotatably mounted on the adjusting seat. The positioning component is mounted on the adjusting seat and is used to position the adjusting seat on the tiller body. The first transmission mechanism is mounted on the adjusting seat and is used to drive the tillers to rotate when the transmission shaft rotates. The wheels are rotatably mounted on the tiller body. The second transmission mechanism is mounted on the wheels and is used to drive the wheels to rotate when the transmission shaft rotates.

[0006] By adopting the above technical solution, when the tiller body is transported to the cultivation area, the adjusting seat drives the tiller blades upward, so that the tiller blades are away from the ground. Then, the positioning component positions the adjusting seat and the tiller blades at the current height. At this time, the walking wheels are in contact with the ground, and the first transmission mechanism is released from driving the tiller blades when the transmission shaft rotates. The tiller body drives the transmission shaft to rotate, and the second transmission mechanism drives the walking wheels to rotate when the transmission shaft rotates, thus driving the tiller body to move to the cultivation area. Then, the second transmission mechanism is released from driving the walking wheels when the transmission shaft rotates, and the positioning component is released from positioning the adjusting seat. The adjusting seat drives the tiller blades downward, so that the tiller blades lift the tiller body. The positioning component positions the adjusting seat and the tiller blades. When the tiller body drives the transmission shaft to rotate, the first transmission mechanism can drive the tiller blades to rotate, thus cultivating the land. This simplifies the operation of installing and removing the walking wheels and tiller blades, as well as carrying additional tiller blades, and improves the problem of time-consuming and laborious use of small tillers.

[0007] Optionally, the first transmission mechanism includes a telescopic rod, a first bevel gear, and a second bevel gear. The telescopic rod is coaxially mounted on the transmission shaft, and its length is extendable. The first bevel gear is rotatably mounted on an adjusting seat and coaxially connected to the telescopic rod. The second bevel gear is coaxially mounted on the tiller blade and meshes with the first bevel gear.

[0008] By adopting the above technical solution, the transmission shaft drives the telescopic rod to rotate, the telescopic rod drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the tiller blade to rotate, thus conveniently realizing the transmission shaft driving the tiller blade.

[0009] Optionally, the telescopic rod includes a connecting sleeve, a connecting rod, and a connecting pin. The connecting sleeve is coaxially mounted on the transmission shaft. The connecting rod is slidably and rotatably inserted into the connecting sleeve. The connecting rod is coaxially connected to the first bevel gear. The connecting rod has multiple connecting holes. The connecting pin is slidably mounted on the connecting sleeve and passes through the connecting holes.

[0010] By adopting the above technical solution, when the adjusting seat moves, it drives the first bevel gear, the second bevel gear, and the connecting rod to move synchronously, so that the first bevel gear and the second bevel gear can always maintain meshing, improving the stability of the meshing of the first bevel gear and the second bevel gear. After the adjusting seat moves to the required height, the connecting pin passes through the connecting sleeve and through the connecting hole on the connecting rod that is aligned with the connecting pin at this time, thereby locking the connecting rod and the connecting sleeve. The connecting sleeve can then drive the connecting rod to rotate, thereby driving the tiller blades. When the connecting pin is pulled out from the connecting rod, the rotation of the connecting sleeve can cancel the driving of the connecting rod, thereby releasing the driving of the tiller blades when the drive shaft rotates, reducing the ineffective driving of the tiller blades when transporting the tiller body, and thus reducing the power consumption when transporting the tiller body.

[0011] Optionally, the second transmission mechanism includes a third bevel gear, a fourth bevel gear, a fifth bevel gear, a sixth bevel gear, a connector, a locking element, and a control component. The third bevel gear is coaxially mounted on the transmission shaft. The fourth bevel gear is rotatably mounted on the tiller body and meshes with the third bevel gear. The fifth bevel gear is rotatably mounted on the tiller body. The sixth bevel gear is coaxially mounted on the walking wheel and meshes with the fifth bevel gear. The connector is slidably mounted on the tiller body and engages with the fifth bevel gear. The connector has a polygonal cross-sectional shape. The locking element is mounted on the tiller body and is used to position the connector. The control component is mounted on the fourth bevel gear and is used to drive the connector to rotate when the fourth bevel gear rotates.

[0012] By adopting the above technical solution, when it is necessary to drive the walking wheels to rotate, the connector is driven to slide towards the fifth bevel gear, so that the connector is inserted into the fifth bevel gear. The connector is positioned by the locking component. Subsequently, the transmission shaft drives the third bevel gear to rotate, the third bevel gear drives the fourth bevel gear to rotate, and the control component drives the connector to rotate when the fourth bevel gear rotates. The connector then drives the fifth bevel gear to rotate, the fifth bevel gear drives the sixth bevel gear to rotate, and the sixth bevel gear drives the walking wheels to rotate, thus driving the walking wheels. The locking component is then released from the positioning of the connector, and the connector is driven to disengage from the fifth bevel gear, thereby releasing the drive of the walking wheels, reducing the ineffective drive of the walking wheels during tillage, and reducing the power consumption of the tiller body during tillage.

[0013] Optionally, the control assembly includes a seventh bevel gear, an eighth bevel gear, a control sleeve, and a control rod. The seventh bevel gear is rotatably mounted on the tiller body and coaxially connected to the fourth bevel gear. The eighth bevel gear is rotatably mounted on the tiller body and meshes with the seventh bevel gear. The control sleeve is coaxially mounted on the eighth bevel gear. The control rod is slidably inserted into the control sleeve. The control rod has a polygonal cross-sectional shape and is coaxially connected to the connector.

[0014] By adopting the above technical solution, when the connector is plugged into the walking wheel, it drives the control rod to move away from the control sleeve. Subsequently, when the fourth bevel gear rotates, it drives the seventh bevel gear to rotate, the seventh bevel gear drives the eighth bevel gear to rotate, the eighth bevel gear drives the control sleeve to rotate, the control sleeve drives the control rod to rotate, and the control rod drives the connector to rotate, thereby conveniently driving the walking wheel.

[0015] Optionally, a support seat is vertically hinged to the axle of the walking wheel, the wheel body of the walking wheel is mounted on the support seat, and a locking mechanism for positioning the support seat is provided on the support seat.

[0016] By adopting the above technical solution, during cultivation, the support seat is driven to rotate upward, which in turn drives the wheel of the walking wheel to rotate. Then, the support seat is positioned by the locking mechanism, which adjusts the wheel of the walking wheel to an upward tilted state, reducing the impact of the walking wheel on cultivation.

[0017] Optionally, the locking mechanism includes a locking gear, a locking block, and a drive assembly. The locking gear is coaxially mounted on the hinge shaft of the support base. Two locking blocks are slidably mounted on the tiller body, with the two locking blocks located on opposite sides of the locking gear. The drive assembly is mounted on the tiller body and is used to drive the two locking blocks closer to or further apart from each other.

[0018] By adopting the above technical solution, when the support base is driven to rotate, the driving component drives the two locking blocks to move away from each other, thereby releasing the locking of the locking gear by the two locking blocks abutting against the two sides of the locking gear. After the support base is adjusted, the driving component drives the two locking blocks to move closer to each other and abut against the two sides of the locking gear, so that the locking gear can be easily locked, thereby locking the support base at the current angle.

[0019] Optionally, the drive assembly includes an unlocking block and a double-ended lead screw. The unlocking block is disposed on a locking block, and the double-ended lead screw is rotatably disposed on the tiller body. The double-ended lead screw is threadedly connected to both unlocking blocks, and the thread directions of the double-ended lead screw and the two unlocking blocks are opposite.

[0020] By adopting the above technical solution, turning the double-ended screw causes the two unlocking blocks to move away from each other, and the two unlocking blocks can drive the two locking blocks to move away from each other. Turning the double-ended screw in the opposite direction causes the two unlocking blocks to move closer to each other, and the two unlocking blocks can drive the two locking blocks to move closer to each other.

[0021] Optionally, the tiller body is provided with a lifting mechanism for lifting the tiller body. The lifting mechanism includes a lifting sleeve, a lifting rod, and a sliding assembly. At least two lifting sleeves are provided on the tiller body. The lifting rod is slidably inserted below the lifting sleeve. The sliding assembly is provided on the lifting sleeve and is used to drive the lifting rod to slide.

[0022] By adopting the above technical solution, before driving the tiller blades downward for tilling, the sliding component drives the lifting rod to move away from the lifting sleeve. The lifting rod moves downward and lifts the main body of the tiller, which can easily adjust the downward movement of the tiller blades and lift the main body of the tiller, thus improving the convenience of driving the tiller blades downward for tilling.

[0023] Optionally, the sliding assembly includes a lifting screw, a worm gear, a worm, and a crank handle. The lifting screw is rotatably mounted on the lifting sleeve and threadedly connected to the lifting rod. The worm gear is coaxially mounted on the lifting screw. The worm is rotatably mounted on the lifting sleeve and meshes with the worm gear. The crank handle is inserted into the worm.

[0024] By adopting the above technical solution, the crank handle is inserted into the worm gear. Turning the crank handle causes the worm gear to rotate, which in turn causes the worm wheel to rotate. The worm wheel then causes the lifting screw to rotate, which in turn drives the lifting rod to move towards or away from the lifting sleeve. By extending the lever arm through the crank handle, the force required to lift the agricultural machine body is reduced. Furthermore, the self-locking mechanism of the worm gear and worm wheel enhances the stability of the lifting rod when providing support.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. Simplify the installation and removal of the wheels and blades, as well as the operation of carrying additional blades, thus improving the time-consuming and labor-intensive use of small agricultural tillers; 2. When the connecting sleeve rotates, it can cancel the drive of the connecting rod, thereby releasing the drive of the tiller blade when the drive shaft rotates, reducing the ineffective drive of the tiller blade when transporting the tiller body, and thus reducing the power consumption of the tiller body during transport. 3. During tillage, drive the support seat to rotate upwards. The support seat drives the wheels of the walking wheels to rotate. Then, the locking mechanism positions the support seat, which adjusts the wheels of the walking wheels to an upward tilt, reducing the impact of the walking wheels on tillage. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a portable dual-mode agricultural tiller according to an embodiment of this application.

[0027] Figure 2 This is a structural diagram of the embodiment of the agricultural tiller body after the upper structure of the tiller body is hidden.

[0028] Figure 3 This is a structural schematic diagram from another perspective of an embodiment of this application.

[0029] Figure 4 This is a schematic diagram of the support base and locking mechanism according to an embodiment of this application.

[0030] Figure 5 This is a schematic diagram of the structure after partially concealing the tiller blades in the embodiments of this application.

[0031] Figure 6 This is a schematic diagram of the lifting mechanism according to an embodiment of this application (partial cross-section of the lifting sleeve is shown in the figure).

[0032] Reference numerals: 1. Tiller body; 2. Transmission shaft; 3. Adjustment seat; 4. Tiller blade; 5. Positioning component; 6. First transmission mechanism; 61. Telescopic rod; 611. Connecting sleeve; 612. Connecting rod; 613. Connecting pin; 62. First bevel gear; 63. Second bevel gear; 7. Walking wheel; 8. Second transmission mechanism; 81. Third bevel gear; 82. Fourth bevel gear; 83. Fifth bevel gear; 84. Sixth bevel gear; 85. Connector; 86. Locking component; 87. Control mechanism Components; 871, Seventh bevel gear; 872, Eighth bevel gear; 873, Control sleeve; 874, Control lever; 9, Support base; 10, Locking mechanism; 101, Locking gear; 102, Locking block; 103, Drive assembly; 1031, Unlocking block; 1032, Double-ended lead screw; 11, Lifting mechanism; 111, Lifting sleeve; 112, Lifting rod; 113, Sliding assembly; 1131, Lifting screw; 1132, Worm gear; 1133, Worm; 1134, Handle. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0034] This application discloses a portable dual-mode agricultural tiller.

[0035] Reference Figure 1 The portable dual-mode agricultural tiller includes a tiller body 1, a transmission shaft 2, an adjustment seat 3, tillage blades 4, a positioning component 5, a first transmission mechanism 6, walking wheels 7, a second transmission mechanism 8, and a lifting mechanism 11.

[0036] Reference Figure 1 The transmission shaft 2 is rotatably mounted on the tiller body 1 in the vertical direction. The transmission shaft 2 is used to rotate under the drive of the tiller body 1. In this embodiment, the tiller body 1 is a hand-held diesel micro-tiller. The transmission shaft 2 is coaxially connected to the output shaft of the diesel engine on the tiller body 1.

[0037] Reference Figure 1 , Figure 2 The adjusting seat 3 is slidably installed at the bottom of the tiller body 1 in a vertical direction. The tiller blade 4 is rotatably installed on the adjusting seat 3. The positioning component 5 is installed on the adjusting seat 3. The positioning component 5 is used to position the tiller body 1 on the adjusting seat 3. In this embodiment, the positioning component 5 includes a positioning pin. The positioning pin is slidably installed on the adjusting seat 3. The tiller body 1 has a plurality of through holes spaced apart along the sliding direction of the adjusting seat 3 for the positioning pin to pass through.

[0038] The user drives the adjusting seat 3 to slide vertically, which in turn causes the tiller blade 4 to slide, thus adjusting the height of the tiller blade 4. Then, the positioning pin passes through the adjusting seat 3 and through the through hole on the tiller body 1 to position the adjusting seat 3, thereby positioning the tiller blade 4 at the adjusted height. This allows for convenient height adjustment of the tiller blade 4, enabling the tiller body 1 to rise when moving, ensuring the tiller body 1's passability and reducing the possibility of the tiller blade 4 being damaged by collisions with hard objects on the road. When tilling is needed, the tiller blade 4 is lowered for tilling.

[0039] Reference Figure 1 , Figure 2 The first transmission mechanism 6 is installed on the tiller body 1. The first transmission mechanism 6 is used to drive the tiller blade 4 to rotate when the transmission shaft 2 rotates. The first transmission mechanism 6 includes a telescopic rod 61, a first bevel gear 62 and a second bevel gear 63. The telescopic rod 61 is coaxially installed on the transmission shaft 2. The length of the telescopic rod 61 is telescopic. The telescopic rod 61 includes a connecting sleeve 611, a connecting rod 612 and a connecting pin 613. The connecting sleeve 611 is coaxially installed on the transmission shaft 2. The connecting sleeve 611 is hollow inside and has an opening at the lower end. The connecting rod 612 is slidably inserted into the connecting sleeve 611. The openings inside the connecting rod 612 and the connecting sleeve 611 are both circular, so that the connecting rod 612 can rotate inside the connecting sleeve 611. The first bevel gear 62 is rotatably installed on the adjusting seat 3. The first bevel gear 62 is coaxially connected to the connecting rod 612. The second bevel gear 63 is coaxially installed on the tiller blade 4. The second bevel gear 63 meshes with the first bevel gear 62.

[0040] When the adjusting seat 3 moves to adjust the height of the tiller 4, the adjusting seat 3 drives the first bevel gear 62, the second bevel gear 63, and the connecting rod 612 to move synchronously, thereby ensuring that the first bevel gear 62 and the second bevel gear 63 remain engaged, improving the stability of the meshing transmission between the first bevel gear 62 and the second bevel gear 63. After the adjusting seat 3 drives the tiller 4 to the required height, the connecting pin 613 is inserted into the connecting sleeve 611 and passes through the connecting hole on the corresponding connecting rod 612, thus locking the connecting rod 612 on the connecting sleeve 611. The transmission shaft 2 drives the connecting sleeve 611 to rotate, and the connecting sleeve 611 then drives the connecting rod 612. 2. When the connecting rod 612 rotates, it drives the first bevel gear 62 to rotate, which in turn drives the second bevel gear 63 to rotate. The second bevel gear 63 then drives the tillage blade 4 to rotate, thus driving the tillage blade 4 to perform rotary tillage. When the tillage machine body 1 is being transported, the connecting pin 613 is pulled out from the connecting hole of the connecting rod 612, releasing the locking of the connecting rod 612 on the connecting sleeve 611. When the connecting sleeve 611 rotates, it no longer drives the connecting rod 612 to rotate, thereby releasing the drive of the tillage blade 4 when the drive shaft rotates. This reduces the ineffective drive of the tillage blade 4 when transporting the tillage machine body 1, thereby reducing the power consumption of the tillage machine body 1 during transport.

[0041] Reference Figure 3 , Figure 4 The walking wheel 7 is rotatably mounted on the bottom of the tiller body 1. In this embodiment, the walking wheel 7 includes a rotating shaft and a wheel body. The rotating shaft is rotatably mounted on the bottom of the tiller body 1, and a support seat 9 is hinged to each end of the rotating shaft. One wheel body is mounted on each support seat 9. A locking mechanism 10 is mounted on the support seat 9. The locking mechanism 10 is used to lock the support seat 9. The locking mechanism 10 includes a locking gear 101, a locking block 102, and a drive assembly 103. The locking gear 101 is coaxially mounted on the hinge shaft of the support seat 9, and two locking blocks 102 are slidably mounted on the tiller body 1. Two locking blocks 102 are located on both sides of the locking gear 101. The drive assembly 103 is installed on the tiller body 1. The drive assembly 103 is used to drive the two locking blocks 102 to move closer or further apart. The drive assembly 103 includes an unlocking block 1031 and a double-ended lead screw 1032. One unlocking block 1031 is installed on one locking block 102. The double-ended lead screw 1032 is rotatably installed on the tiller body 1. The two ends of the double-ended lead screw 1032 are threadedly connected to one unlocking block 1031, and the threads connecting the double-ended lead screw 1032 and the two unlocking blocks 1031 are in opposite directions.

[0042] Before rotary tillage, the user turns the double-ended screw 1032, causing the two unlocking blocks 1031 to move away from the two locking blocks 102. The two locking blocks 102 release the lock on the locking gear 101, and the user can then rotate the support base 9 upward. The support base 9 drives the wheel of the walking wheel 7 to rotate to an upward tilted position. Then, the user turns the double-ended screw 1032 in the opposite direction, causing the two unlocking blocks 1031 to move closer to the two locking blocks 102. The two locking blocks 102 abut against the two sides of the locking gear 101, locking the locking gear 101. This locks the support base 9 and the walking wheel 7 at the current angle, reducing the impact of the walking wheel 7 on the tillage during rotary tillage.

[0043] Reference Figure 1 , Figure 5 The second transmission mechanism 8 is mounted on the walking wheel 7. The second transmission mechanism 8 drives the walking wheel 7 to rotate when the transmission shaft rotates. The second transmission mechanism 8 includes a third bevel gear 81, a fourth bevel gear 82, a fifth bevel gear 83, a sixth bevel gear 84, a connector 85, a locking element 86, and a control component 87. The third bevel gear 81 is coaxially mounted on the transmission shaft 2. The fourth bevel gear 82 is rotatably mounted on the tiller body 1 and meshes with the third bevel gear 81. The fifth bevel gear 83 is rotatably mounted on the tiller body 1. The sixth bevel gear 84 is coaxially mounted on the walking wheel 7 and meshes with the fifth bevel gear 83. The connector 85 is slidably mounted on the tiller body 1. The cross-sectional shape of the connector 85 is polygonal. In this embodiment, the cross-sectional shape of the connector 85 is regular hexagonal. The fifth bevel gear 83 is provided with a regular hexagonal groove for the connector 85 to be inserted. The locking member 86 is mounted on the tiller body 1. The locking member 86 is used to position the connector 85. In this embodiment, the locking member 86 includes a locking pin. The locking pin is inserted into the tiller body 1. The connector 85 is provided with multiple locking holes along the sliding direction of the connector 85. By passing the locking pin through the tiller body 1 and through the locking holes on the connector 85, the connector 85 can be positioned.

[0044] Reference Figure 5The control component 87 is mounted on the fourth bevel gear 82. The control component 87 is used to drive the connector 85 to rotate when the fourth bevel gear 82 rotates. The control component 87 includes a seventh bevel gear 871, an eighth bevel gear 872, a control sleeve 873, and a control rod 874. The seventh bevel gear 871 is rotatably mounted on the tiller body 1 and is coaxially connected to the fourth bevel gear 82. The eighth bevel gear 872 is rotatably mounted on the tiller body 1 and meshes with the first bevel gear 62. The control sleeve 873 is coaxially mounted on the eighth bevel gear 872. The control rod 874 is slidably inserted into the control sleeve 873. The cross-sectional shape of the control rod 874 is polygonal. In this embodiment, the cross-sectional shape of the control rod 874 and the internal opening shape of the control sleeve 873 are both regular hexagonal. The end of the control rod 874 away from the control sleeve 873 is coaxially connected to the connector 85.

[0045] When it is necessary to drive the walking wheel 7 to rotate and transport the tiller body 1, firstly, the support seat 9 drives the wheel body of the walking wheel 7 to rotate coaxially with the shaft of the walking wheel 7. Then, the support seat 9 is locked. Next, the connector 85 is pulled and slid towards the fifth bevel gear 83. After the connector 85 is inserted into the fifth bevel gear 83, the locking pin passes through the tiller body 1 and through the locking hole on the connector 85 to lock the connector 85. At this time, when the transmission shaft 2 rotates, it drives the third bevel gear 81 to rotate. The third bevel gear 81 drives the fourth bevel gear 82 to rotate. The fourth bevel gear 82 drives the seventh bevel gear 871 to rotate. The seventh bevel gear 871 drives the eighth bevel gear 872 to rotate. The eighth bevel gear 872 drives the control sleeve 873 to rotate. The control sleeve 873 drives the control lever 874 to rotate. 74 drives the connector 85 to rotate, the connector 85 drives the fifth bevel gear 83 to rotate, the fifth bevel gear 83 drives the sixth bevel gear 84 to rotate, and the sixth bevel gear 84 drives the walking wheel 7 to rotate, thereby driving the walking wheel 7 to move through the transmission shaft 2. When tilling, the locking pin is pulled out from the connector 85, and then the connector 85 is pulled away from the fifth bevel gear 83, which releases the transmission of the connector 85 to the fifth bevel gear 83, thereby releasing the drive of the walking wheel 7, reducing the ineffective drive of the walking wheel 7 during tilling, reducing the power consumption of the tiller body 1 during tilling, and throughout the entire adjustment process, the fifth bevel gear 83 and the sixth bevel gear 84, the third bevel gear 81 and the fourth bevel gear, and the seventh bevel gear 871 and the eighth bevel gear 872 can all maintain meshing, ensuring the stability of the transmission.

[0046] Reference Figure 1 , Figure 6A lifting mechanism 11 is installed on the tiller body 1. The lifting mechanism 11 is used to lift the tiller body 1. The lifting mechanism 11 includes a lifting sleeve 111, a lifting rod 112, and a sliding assembly 113. One lifting sleeve 111 is installed on each side of the bottom of the tiller body 1. The lifting sleeve 111 is hollow inside and open at the bottom. The lifting rod 112 is slidably inserted into the lifting sleeve 111. The internal openings of the lifting rod 112 and the lifting sleeve 111 are both regular hexagonal. The sliding assembly 113 is installed on the lifting sleeve 111. The sliding assembly 113 is used to drive the lifting rod 112 to slide. The sliding assembly 113 includes a lifting screw 113. 1. A worm gear 1132, a worm 1133, and a crank handle 1134 are provided. A lifting screw 1131 is rotatably mounted on the inner bottom wall of a lifting sleeve 111. The lifting screw 1131 is threaded onto a lifting rod 112. The worm gear 1132 is coaxially mounted on the lifting screw 1131. The worm 1133 is rotatably mounted on the lifting sleeve 111 and extends into the lifting sleeve 111 to mesh with the worm gear 1132. The crank handle 1134 is inserted into the worm 1133. In this embodiment, the cross-section of the worm 1133 on the side outside the lifting sleeve 111 is rectangular. A rectangular groove is provided on the crank handle 1134 so as to insert it into the worm 1133.

[0047] Before driving the tiller blades 4 downwards for tilling, the user inserts the crank handle 1134 onto the worm gear 1133 and rotates the crank handle 1134. The crank handle 1134 drives the worm gear 1133 to rotate, which in turn drives the worm wheel 1132 to rotate. The worm wheel 1132 then drives the lifting screw 1131 to rotate, causing the lifting rod 112 to move away from the lifting sleeve 111. The lifting rod 112 then lifts the tiller body 1, allowing the user to easily adjust and lower the tiller blades 4 to the tilling height that lifts the tiller body 1. Furthermore, the crank handle 1134 can increase the lever arm that drives the worm gear 1133 to rotate, reducing the force required to lift the tiller body 1 and effectively improving the ease with which the user can drive the tiller blades 4 to the tilling state. Then, the user can reverse the crank handle 1134 to move the lifting rod 112 upward, reducing the impact of the lifting rod 112 on the movement of the tiller body 1 during tilling. Moreover, through the self-locking mechanism of the worm wheel 1132 and the worm gear 1133, the stability of the lifting rod 112 supporting the tiller body 1 after adjustment is improved.

[0048] The implementation principle of a portable dual-mode tiller according to an embodiment of this application is as follows: When the tiller body 1 is transferred to the tillage area, the adjusting seat 3 drives the tiller blades 4 to move upward, the connecting pin 613 is pulled out from the connecting sleeve 611 and the connecting rod 612, the drive on the tiller blades 4 is released, and the support seat 9 drives the wheel body of the walking wheel 7 to rotate coaxially with the shaft of the walking wheel 7. At this time, the walking wheel 7 abuts against the ground to support the tiller body 1. Then, the connector 85 is inserted into the fifth bevel gear 83. When the tiller body 1 drives the transmission shaft 2 to rotate, the transmission shaft 2 drives the walking wheel 7 to rotate, thereby conveniently driving the tiller body 1 to be transferred to the tillage area. After the area is cleared, the jacking mechanism 11 lifts the main body 1 of the tiller, pulls the connector 85 off the fifth bevel gear 83, and drives the support seat 9 to rotate the wheels of the walking wheel 7 upward. The locking mechanism 10 locks the support seat 9, and then drives the adjusting seat 3 to move the tiller blade 4 down to the height of contact with the soil. The adjusting seat 3 is locked, and the connecting pin 613 is inserted into the connecting sleeve 611 and the connecting rod 612. The jacking mechanism 11 is retracted, and when the transmission shaft 2 rotates, it can drive the tiller blade 4 to rotate and perform rotary tillage on the land. This simplifies the installation and removal of the walking wheel 7 and the tiller blade 4, as well as the operation of carrying the tiller blade 4 during the transfer of the main body 1 of the tiller, and improves the problem of time-consuming and laborious use of small tillers.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable dual-mode agricultural tiller, characterized in that: The system includes a tiller body (1), a transmission shaft (2), an adjusting seat (3), tillers (4), a positioning component (5), a first transmission mechanism (6), wheels (7), and a second transmission mechanism (8). The transmission shaft (2) is vertically rotatably mounted on the tiller body (1) and is used to rotate under the drive of the tiller body (1). The adjusting seat (3) is vertically slidably mounted on the tiller body (1). The tillers (4) are rotatably mounted on the adjusting seat (3). The positioning component (5) is mounted on the adjusting seat (3) and is used to position the adjusting seat (3) on the tiller body (1). The first transmission mechanism (6) is mounted on the adjusting seat (3) and is used to drive the tillers (4) to rotate when the transmission shaft (2) rotates. The walking wheel (7) is rotatably mounted on the tiller body (1), and the second transmission mechanism (8) is mounted on the walking wheel (7) and is used to drive the walking wheel (7) to rotate when the transmission shaft (2) rotates; the first transmission mechanism (6) includes a telescopic rod (61), a first bevel gear (62) and a second bevel gear (63), the telescopic rod (61) is coaxially mounted on the transmission shaft (2), the length of the telescopic rod (61) is telescopic, the first bevel gear (62) is rotatably mounted on the adjusting seat (3) and coaxially connected to the telescopic rod (61), the second bevel gear (63) is coaxially mounted on the tiller blade (4) and meshes with the first bevel gear (62); the telescopic rod (61) includes a connecting sleeve (611) and a connecting rod (61 2) and connecting pin (613), the connecting sleeve (611) is coaxially arranged on the transmission shaft (2), the connecting rod (612) is slidably and rotatably inserted on the connecting sleeve (611), the connecting rod (612) is coaxially connected to the first bevel gear (62), the connecting rod (612) is provided with multiple connecting holes, the connecting pin (613) is slidably inserted on the connecting sleeve (611) and passes through the connecting holes; the second transmission mechanism (8) includes a third bevel gear (81), a fourth bevel gear (82), a fifth bevel gear (83), a sixth bevel gear (84), a plug (85), a locking member (86) and a control component (87), the third bevel gear (81) is coaxially arranged on the transmission shaft (2), the first bevel gear (612) is coaxially connected to the first bevel gear (62), the connecting rod (612) is provided with multiple connecting holes, the connecting pin (613) is slidably inserted on the connecting sleeve (611) and passes through the connecting holes; the second transmission mechanism (8) includes a third bevel gear (81), a fourth bevel gear (82), a fifth bevel gear (83), a sixth bevel gear (84), a plug (85), a locking member (86) and a control component (87), the third bevel gear (81) is coaxially arranged on the transmission shaft (2), the third bevel gear (81) is coaxially arranged on the transmission shaft (2), the fourth bevel gear (81) is coaxially arranged on the transmission shaft (2), the fifth bevel gear (81) is coaxially arranged on the transmission shaft (2), the sixth bevel gear (84) is coaxially arranged on the transmission shaft (2), the sixth bevel gear (85), the fifth bevel gear (86) is coaxially arranged on the transmission shaft (2), the sixth bevel gear (84) is coaxially arranged on the transmission shaft (2), the sixth bevel The fourth bevel gear (82) is rotatably mounted on the tiller body (1) and meshes with the third bevel gear (81). The fifth bevel gear (83) is rotatably mounted on the tiller body (1). The sixth bevel gear (84) is coaxially mounted on the walking wheel (7) and meshes with the fifth bevel gear (83). The plug (85) is slidably mounted on the tiller body (1) and plugs into the fifth bevel gear (83). The cross-sectional shape of the plug (85) is polygonal. The locking element (86) is mounted on the tiller body (1) and is used to position the plug (85). The control component (87) is mounted on the fourth bevel gear (82) and is used to drive the plug (85) to rotate when the fourth bevel gear (82) rotates.A support base (9) is vertically hinged to the axle of the walking wheel (7). The wheel body of the walking wheel (7) is mounted on the support base (9). A locking mechanism (10) for positioning the support base (9) is provided on the support base (9).

2. The portable dual-mode agricultural tiller according to claim 1, characterized in that: The control assembly (87) includes a seventh bevel gear (871), an eighth bevel gear (872), a control sleeve (873), and a control lever (874). The seventh bevel gear (871) is rotatably mounted on the tiller body (1) and coaxially connected to the fourth bevel gear (82). The eighth bevel gear (872) is rotatably mounted on the tiller body (1) and meshes with the seventh bevel gear (871). The control sleeve (873) is coaxially mounted on the eighth bevel gear (872). The control lever (874) is slidably inserted into the control sleeve (873). The cross-sectional shape of the control lever (874) is polygonal. The control lever (874) is coaxially connected to the connector (85).

3. The portable dual-mode agricultural tiller according to claim 1, characterized in that: The locking mechanism (10) includes a locking gear (101), a locking block (102), and a drive assembly (103). The locking gear (101) is coaxially mounted on the hinge shaft of the support base (9). Two locking blocks (102) are slidably mounted on the tiller body (1). The two locking blocks (102) are located on both sides of the locking gear (101). The drive assembly (103) is mounted on the tiller body (1) and is used to drive the two locking blocks (102) to move closer to or further away from each other.

4. The portable dual-mode agricultural tiller according to claim 3, characterized in that: The drive assembly (103) includes an unlocking block (1031) and a double-ended lead screw (1032). The unlocking block (1031) is provided on a locking block (102). The double-ended lead screw (1032) is rotatably mounted on the tiller body (1). The double-ended lead screw (1032) is threadedly connected to both unlocking blocks (1031). The thread directions of the double-ended lead screw (1032) and the two unlocking blocks (1031) are opposite.

5. The portable dual-mode agricultural tiller according to claim 1, characterized in that: The tiller body (1) is provided with a lifting mechanism (11) for lifting the tiller body (1). The lifting mechanism (11) includes a lifting sleeve (111), a lifting rod (112) and a sliding component (113). At least two lifting sleeves (111) are provided on the tiller body (1). The lifting rod (112) is slidably inserted below the lifting sleeve (111). The sliding component (113) is provided on the lifting sleeve (111) and is used to drive the lifting rod (112) to slide.

6. The portable dual-mode agricultural tiller according to claim 5, characterized in that: The sliding assembly (113) includes a lifting screw (1131), a worm gear (1132), a worm (1133), and a crank (1134). The lifting screw (1131) is rotatably mounted on the lifting sleeve (111) and threadedly connected to the lifting rod (112). The worm gear (1132) is coaxially mounted on the lifting screw (1131). The worm (1133) is rotatably mounted on the lifting sleeve (111) and meshes with the worm gear (1132). The crank (1134) is inserted into the worm (1133).

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