Plough share turnover type mini-tiller

Abstract

The utility model relates to a plough share turnover mini-tiller which comprises a rack, a front wheel, a plough share, a rear wheel, a push rod and a power device, a shaft sleeve is arranged between the front wheel and the rear wheel, and the outer circle of the shaft sleeve is connected with the bottom of the rack through an inclined vertical rod; the front end of the rotating shaft is connected with a plough share, and the other end of the rotating shaft is connected with an angle positioning rod through a pin shaft; a manual shifting rod is movably connected to the rack through a pin, the front end of the manual shifting rod inclines downwards, the end of the manual shifting rod is movably connected with the angle positioning rod, and the rear end of the manual shifting rod extends upwards and is close to the push rod. The plough share overturning type mini-tiller has a plough share overturning function, can be suitable for small-area planting in a mountainous area or land with an inclined plane, and integrally improves the working efficiency of cultivation in the mountainous area.

Description

Technical Field

[0001] This utility model relates to a plowshare-turning micro-tiller, belonging to the technical field of agricultural tillage machinery. Background Technology

[0002] With the development of agricultural technology in my country, more and more farmland is using modern agricultural machinery, thereby improving the efficiency of plowing, harvesting, and other work. However, large-scale mechanized equipment cannot be used for farmland located in mountainous areas, which are small in size and have slopes. For small-area farming or terraced fields in mountainous areas, mini-tillers are usually used because they are lightweight and efficient, and are widely favored by farmers. However, existing mini-tillers usually use fixed plowshares, which cannot be adjusted according to the slope of the mountainous terrain, thus limiting their use. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a plowshare-turning micro-tiller, which has the function of turning the plowshare, and can be used for small-area planting in mountainous areas or on sloping land, thereby improving the overall efficiency of farming in mountainous areas.

[0004] To solve the above problems, the specific technical solution of this utility model is as follows: A plowshare-reversible micro-tiller includes a frame, a front wheel, a plowshare, a rear wheel, a push rod, and a power unit. A bushing is provided between the front wheel and the rear wheel, and the outer circle of the bushing is connected to the bottom of the frame through an inclined upright. A rotating shaft is coaxially fitted inside the bushing, the front end of the rotating shaft is connected to the plowshare, and the other end of the rotating shaft is connected to an angle positioning rod through a pin. A manual lever is movably connected to the frame through a pin. The front end of the manual lever is inclined downward and the end is movably connected to the angle positioning rod. The rear end of the manual lever extends upward and approaches the push rod.

[0005] The diameter of the through hole of the manual lever is larger than the outer diameter of the pin. A fulcrum boss is provided between the manual lever and the frame. The pin passes through the fulcrum boss and engages with the through hole of the manual lever.

[0006] The frame has three vertical gear slots. A manual lever drives the angle positioning rod to rotate, and the upper end of the angle positioning rod is inserted into any of the gear slots.

[0007] The lower end of the manual lever is provided with a collar, the inner diameter of which is larger than the outer diameter of the angle positioning rod, and the angle positioning rod is inserted into the collar.

[0008] The rear wheel is provided with a cover plate on top, and one end of the return spring is connected to the cover plate, while the other end is connected to the middle of the manual lever.

[0009] The rear wheel is provided with several soil-removing blades around its circumference. The soil-removing blades are distributed along the radial direction of the rear wheel, and the transverse cross-section of the soil-removing blades is an arc-shaped curved surface, with the concave surface of the arc-shaped curved surface facing the direction of rotation of the rear wheel.

[0010] The plowshare-turning micro-tiller of this application adopts the above-described structure and has the following advantages:

[0011] 1. The plowshare's shaft and bushing work together to achieve the angle flipping, thereby completing the function of trenching and breaking soil on the slope;

[0012] 2. The angle positioning rod is rotated by manually moving the lever. Since the angle positioning rod is connected to the shaft by a pin, it can rotate the shaft and swing back and forth around the pin, thereby locking the angle positioning rod with the gear slot and positioning the plow after the angle is determined.

[0013] 3. The manual lever is equipped with a pin, a fulcrum boss and a return spring in the middle, so that the manual lever can complete the rotation and positioning of the angle positioning rod by relying solely on rotational power. Moving the manual lever back and forth will make the angle positioning rod swing back and forth. At the same time, it can be easily reset by the return spring.

[0014] 4. A collar is set at the lower end of the manual lever, which can be synchronously flipped left and right with the angle positioning rod, and can also swing back and forth. The collar is not restricted in the axial direction of the angle positioning rod, so it can swing and rotate flexibly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a plowshare-turning micro-tiller.

[0016] Figure 2 This is a schematic diagram showing the connection between the plowshare and the manual lever when the plowshare is not turned over.

[0017] Figure 3 This is a schematic diagram showing the connection between the plowshare and the manual lever when the plowshare flips to the left.

[0018] Figure 4 This is a schematic diagram showing the connection between the plowshare and the manual lever when the plowshare flips to the right. Detailed Implementation

[0019] like Figure 1 and Figure 2As shown, a plowshare-reversible micro-tiller includes a frame 1, a front wheel 2, a plowshare 3, a rear wheel 4, a push rod 5, and a power unit 6. A bushing 11 is provided between the front wheel 2 and the rear wheel 4. The outer circumference of the bushing 11 is connected to the bottom of the frame 1 via an inclined upright rod 13. A rotating shaft 12 is coaxially fitted inside the bushing 11. The front end of the rotating shaft 12 is connected to the plowshare 3, and the other end is connected to an angle positioning rod 14 via a pin. A manual lever 15 is movably connected to the frame 1 via a pin 19. The front end of the manual lever 15 is inclined downwards and its end is movably connected to the angle positioning rod 14. The rear end of the manual lever 15 extends upwards and approaches the push rod 5. When the manual lever 15 rotates left and right around the pin 19, it causes the angle positioning rod 14 to swing left and right, thereby achieving the left and right reversal of the plowshare.

[0020] The diameter of the through hole of the manual lever 15 is larger than the outer diameter of the pin 19. A fulcrum boss 9 is provided between the manual lever 15 and the frame 1. The pin 19 passes through the fulcrum boss 9 and engages with the through hole of the manual lever 15. The fulcrum boss 9 serves as the fulcrum for the manual lever 15 to swing back and forth. After the manual lever 15 swings back and forth, the angle positioning rod 14 can also swing back and forth around the pin. Three vertical gear slots 16 are provided on the frame 1. The manual lever 15 drives the angle positioning rod 14 to rotate, and when the upper end of the angle positioning rod 14 rotates and swings, it engages with any of the gear slots 16.

[0021] The lower end of the manual lever 15 is provided with a collar 17. The inner diameter of the collar 17 is larger than the outer diameter of the angle positioning rod 14, and the angle positioning rod 14 is inserted into the collar 17. The collar 17 not only has the function of swinging left, right and forward and backward for the angle positioning rod 14, but also can adjust its position axially during the swinging process without restraint, thus preventing over-positioning.

[0022] The rear wheel 4 is provided with a cover plate 7 on top, which has a protective function; in order to enable the manual lever 15 to have a reset function, one end of the reset spring 8 is connected to the cover plate 7, and the other end is connected to the middle of the manual lever 15.

[0023] The rear wheel 4 is provided with a plurality of soil-removing blades 18 around its circumference. The soil-removing blades 18 are distributed along the radial direction of the rear wheel 4, and the transverse cross-section of the soil-removing blades 18 is an arc-shaped curved surface, with the concave surface of the arc-shaped curved surface facing the rotation direction of the rear wheel 4. The contact between the soil-removing blades 18 and the bottom surface of the arc-shaped curved surface is an arc, which improves the support force between the soil-removing blades 18 and the soil, making the overall stability of the rear wheel better. In addition, the arc surface can gather soil and improve the overall thrust of the rear wheel.

[0024] like Figures 2 to 4As shown, the angle positioning rod 14 is located in the center and the left and right side slots 16 respectively. When the plowshare 3 is not flipping, the manual lever 15 is centered, and the angle positioning rod 14 is located in the center slot 16. When the manual lever 15 is lifted forward, the angle positioning rod 14 will rotate backward and disengage from the slot 16. Turning the upper handle of the manual lever 15 to the right causes the collar 17 at the lower end of the manual lever 15 to move the angle positioning rod 14 to the left. After reaching the corresponding slot 16 on the left, pressing the manual lever 15 downward will cause the top of the angle positioning rod 14 to enter the left slot 16. Figure 3 As shown, the plowshare 3 rotates 40° to the left. Repeating the above process, moving the upper handle of the manual lever 15 upwards, to the left, and then downwards, will cause the top of the angle positioning lever 14 to enter the right-side gear slot 16, rotating the plowshare 3 35°–45° to the right. Figure 4 As shown, the angle at which the plowshare 3 flips is determined by the position of the gear slot 16.

Claims

1. A plough-share turning mini-tiller comprising a frame (1), a front wheel (2), a plough-share (3), a rear wheel (4), a push rod (5) and a power device (6), characterized in that: The shaft sleeve (11) is connected with the bottom of the frame (1) through the inclined vertical rod (13) outside the circle; the coaxial shaft (12) is matched in the shaft sleeve (11), the front end of the coaxial shaft (12) is connected with the plough share (3), the other end of the coaxial shaft (12) is connected with the angle positioning rod (14) through the pin shaft; the manual lever (15) is movably connected with the frame (1) through the pin (19), the front end of the manual lever (15) is inclined downward, the end is movably connected with the angle positioning rod (14), the rear end of the manual lever (15) extends upward and approaches the push rod (5).

2. The moldboard inverting mini-tiller according to claim 1, characterized in that: The diameter of the through hole of the manual lever (15) is greater than the diameter of the outer circle of the pin (19), the fulcrum boss (9) is arranged between the manual lever (15) and the frame (1), and the pin (19) is matched with the through hole of the manual lever (15) through the fulcrum boss (9).

3. The moldboard inverting mini-tiller of claim 2, wherein: Three vertical gear grooves (16) are arranged on the frame (1), the manual lever (15) drives the angle positioning rod (14) to rotate, and the upper end of the angle positioning rod (14) is inserted into any gear groove (16).

4. The moldboard inverting mini-tiller of claim 2, wherein: The lower end of the manual lever (15) is provided with a sleeve ring (17), the inner diameter of the sleeve ring (17) is greater than the outer diameter of the angle positioning rod (14), and the angle positioning rod (14) is inserted into the sleeve ring (17).

5. The moldboard inverting mini-tiller of claim 1, wherein: The top of the rear wheel (4) is provided with a cover plate (7), one end of the reset spring (8) is connected with the cover plate (7), and the other end is connected with the middle part of the manual lever (15).

6. The moldboard inverting mini-tiller of claim 1, wherein: The rear wheel (4) is provided with a plurality of soil blades (18), the soil blades (18) are distributed along the radial direction of the rear wheel (4), and the transverse section of the soil blades (18) is an arc surface, and the concave surface of the arc surface faces the rotation direction of the rear wheel (4).

Images