Quick adjusting mechanism of rotary cultivator

Abstract

The utility model discloses a rotary cultivator fast adjusting mechanism which comprises a fixing base and a swing arm used for installing a walking wheel, one end of the swing arm is connected to the fixing base in a rotating mode, the fixing base is provided with a plurality of clamping grooves to form a plurality of gears, a gear shifting handle is movably arranged on the swing arm, the gear shifting handle is provided with clamping columns used for being connected with the clamping grooves in a clamping mode, and the clamping columns are connected with the clamping grooves in a clamping mode. The slotting tool is arranged on the swing arm provided with the walking wheel in a combined mode, the original two independent adjusting structures, namely the walking wheel and the slotting tool, of the rotary cultivator are combined together to form a rapid adjusting structure, and in the process of switching from a transportation state to a working state, only a gear shifting handle needs to be pulled down, and the slotting tool can be rapidly adjusted. The clamping column is separated from the clamping groove in the fixing base, the swing arm, the walking wheel and the slotting tool are subjected to position change according to gear adjustment, the walking wheel is suspended, the slotting tool touches the ground, the dragging and supporting effects are achieved in the working process, switching can be achieved only by pulling a gear shifting handle in the operation process, and therefore operation convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of rotary tillers, and in particular to a quick adjustment mechanism for rotary tillers. Background Technology

[0002] A rotary tiller is an agricultural tillage machine used in conjunction with a tractor. Traditionally, the rotary tiller's wheels and blades are two independently adjustable structures. This design means that the rotary tiller requires complex and cumbersome pre-adjustment when switching from transport to working mode. Not only do the wheels need to be adjusted, but the blades also need to be adjusted. The adjustment process is complicated and troublesome. Furthermore, adjusting the height of the wheels when switching from transport to working mode requires considerable effort and is not easy to operate. Utility Model Content

[0003] To further improve operational convenience, this application provides a quick adjustment mechanism for a rotary tiller.

[0004] This application provides a quick adjustment mechanism for a rotary tiller, which adopts the following technical solution:

[0005] A quick adjustment mechanism for a rotary tiller includes a fixed base and a swing arm for mounting the walking wheels. One end of the swing arm is rotatably connected to the fixed base. The fixed base has multiple slots forming multiple gear positions. A shift handle is movably mounted on the swing arm. The shift handle has a locking post for engaging with the slots. An installation slot for mounting a blade is provided at the end of the swing arm away from the fixed base.

[0006] Optionally, the gear shift lever is slidably connected to the rocker arm, and the rocker arm is provided with a reset member that drives the gear shift lever to reset. The reset member drives the locking pin of the gear shift lever to remain engaged with the locking groove.

[0007] Optionally, the reset component includes a spring, and both the rocker arm and the gear shift lever are provided with connecting holes, with both ends of the spring hooked onto the connecting holes.

[0008] Optionally, the shift lever has a detachable guide post, and the rocker arm has a groove through which the guide post passes and slides.

[0009] Optionally, the guide post has annular grooves at both ends and snap rings are engaged at the annular grooves.

[0010] Optionally, the locking pin passes through the swing arm, and the swing arm has a guide groove that slides with the locking pin.

[0011] Optionally, the shift lever has a bent handle portion.

[0012] Optionally, the swing arm and the insert blade are provided with corresponding mounting holes, and a connecting pin for connecting the two is inserted into the mounting holes.

[0013] Optionally, the mounting holes on the insert are distributed at intervals along the length of the insert.

[0014] Optionally, the width of the mounting groove is greater than the width of the insert, and one end of the insert is tapered.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. The blade is integrated into the swing arm where the traveling wheels are mounted, merging the original two independent adjustment structures of the rotary tiller's traveling wheels and blade into a single quick-adjustment structure. During the transition from transport mode to working mode, simply pull down the shift lever, the locking pin disengages from the slot on the fixed seat, and the swing arm, along with the traveling wheels and blade, changes position according to the gear selection, suspending the traveling wheels in the air and keeping the blade on the ground. This provides dragging and support during operation. Switching is done simply by pulling the shift lever, without any other extra operations, thus improving ease of use and increasing work efficiency.

[0017] 2. The gear shift lever is slidably connected to the rocker arm. It achieves good guidance through the sliding cooperation of the guide post and the slide groove, and the locking post and the guide groove, ensuring that the gear shift lever can only slide in the specified direction. The sliding of the gear shift lever is more stable, and the gear shift lever is well attached to the rocker arm, so it is not easy to fall off.

[0018] 3. The spring design allows for automatic reset of the gear shift lever. After shifting gears, simply release the gear shift lever, and the locking pin will automatically engage with the slot to lock the position, which is simple and convenient.

[0019] 4. The design of multiple mounting holes on the inserter allows for selection of the appropriate mounting hole for installation as needed, increasing the versatility of inserter installation and meeting the needs of more applications. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of an embodiment of this application.

[0021] Figure 2 This is a structural diagram of the fixing seat in the embodiment of this application.

[0022] Figure 3 This is a diagram showing the connection structure between the swing arm and the gear shift lever in an embodiment of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Fixed base; 2. Swing arm; 3. Rotating pin; 4. Mounting slot; 5. Insert knife; 6. Reserved hole; 7. Slot; 8. Gear shift handle; 9. Locking post; 10. Reset part; 11. Hook; 12. Connecting hole; 13. Guide post; 14. Snap ring; 15. Slide groove; 16. Guide groove; 17. Handle part; 18. Mounting hole; 19. Connecting pin. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0026] A quick-adjustment mechanism for a rotary tiller, such as Figure 1 As shown, it includes a fixed base 1 and a swing arm 2. The top end of the swing arm 2 is rotatably connected to the fixed base 1 by a rotating pin 3. The fixed base 1 is used to fix it on the rotary tiller. An installation groove 4 is provided at the bottom of the swing arm 2. The installation groove 4 is used to install the insert blade 5. At the same time, a reserved hole 6 is reserved at the bottom end of the swing arm 2. The reserved hole 6 is used to install the walking wheel.

[0027] like Figures 1-3 As shown, the bottom of the fixed base 1 is provided with multiple slots 7 at intervals along the rotation direction of the swing arm 2. Each slot 7 is evenly distributed and forms multiple gear positions. A shift handle 8 is slidably connected to the swing arm 2 along its length direction. The shift handle 8 is provided with a locking post 9 that engages with the slot 7. The swing arm 2 is also provided with a reset member 10 that drives the shift handle 8 to move and reset. The reset member 10 drives the shift handle 8 to reset until the locking post 9 and the slot 7 are engaged.

[0028] like Figures 1-3 As shown, the reset component 10 includes a spring with hooks 11 at both ends. The rocker arm 2 and the gear shift lever 8 have connection holes 12 that connect to the hooks 11. The hooks 11 at both ends of the spring are respectively hooked onto the connection holes 12 of the rocker arm 2 and the gear shift lever 8. At this time, the spring is in a stretched state, so that the gear shift lever 8 can be effectively driven to move and reset to the locking pin 9 and the locking groove 7 to maintain a matching and limiting state.

[0029] like Figure 1 and Figure 3 As shown, a guide post 13 is provided in the middle of the shift lever 8 and is detachably connected to it. The guide post 13 passes through the shift lever 8 and its two ends are located outside the shift lever 8. Both ends of the guide post 13 have annular grooves and snap rings 14 are engaged in the annular grooves. The guide post 13 can be detachably installed by means of snap rings 14. At the same time, a sliding groove 15 is provided on the swing arm 2 for the guide post 13 to slide. The guide post 13 passes through the sliding groove 15 and the length direction of the sliding groove 15 is set along the length direction of the swing arm 2.

[0030] like Figure 1 and Figure 3As shown, the locking post 9 is also detachably connected to the shift lever 8. The locking post 9 passes through the shift lever 8 and the swing arm 2. The two ends of the locking post 9 are engaged with snap rings 14 to achieve installation limit. At the same time, a guide groove 16 is provided on the swing arm 2 for the locking post 9 to pass through. The length direction of the guide groove 16 is set along the length direction of the swing arm 2. The locking post 9 is slidably connected in the guide groove 16.

[0031] In this way, the sliding cooperation between the guide post 13 and the slide groove 15, and the locking post 9 and the guide groove 16, achieves good guidance, ensuring that the shift lever 8 can only slide in the specified direction. The sliding of the shift lever 8 is more stable, and the shift lever 8 is well attached to the swing arm 2, making it less likely to fall off.

[0032] like Figure 1 and Figure 3 As shown, a handle portion 17 is bent on the gear shift lever 8. The handle portion 17 is horizontal and perpendicular to the rocker arm 2. The design of the handle portion 17 makes it easy for people to apply force at this point to drive the gear shift lever 8 to slide and adjust on the rocker arm 2.

[0033] like Figure 1 and Figure 3 As shown, corresponding mounting holes 18 are provided on the swing arm 2 and the insert 5. A connecting pin 19 passes through the mounting hole 18. The connecting pin 19 is used to connect and install the swing arm 2 and the insert 5. In this embodiment, the width of the mounting groove 4 is greater than the width of the insert 5, so that the swing arm 2 can be rotated appropriately relative to the connecting pin 19 as a rotation point. Multiple mounting holes 18 are distributed along the length of the insert 5, so that a suitable mounting hole 18 can be selected for installation during actual installation, improving applicability and practicality. In addition, one end of the insert 5 is tapered. The tapered end of the insert 5 is used to touch the ground, and this end is easier to enter the soil, playing a dragging and supporting role during operation.

[0034] 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 quick adjustment mechanism for a rotary cultivator, characterized by: The utility model provides a walking wheel fixing seat, including fixed seat (1) and the swing arm (2) for installing walking wheel, one end of swing arm (2) is rotatably connected on fixed seat (1), a plurality of clamping slots (7) are formed on fixed seat (1) and form a plurality of gears, swing arm (2) is movably provided with gear shift handle (8), gear shift handle (8) is provided with the clamping post (9) for clamping with clamping slot (7), the end away from fixed seat (1) of swing arm (2) is provided with the installation groove (4) for installing the cutter (5).

2. A quick adjustment mechanism for a rotary cultivator according to claim 1, characterized in that: The gear shift handle (8) is slidably connected to the swing arm (2), and the swing arm (2) is provided with a reset member (10) for driving the gear shift handle (8) to reset, and the reset member (10) drives the clamping post (9) of the gear shift handle (8) to keep clamping with the clamping slot (7).

3. A quick adjustment mechanism for a rotary cultivator according to claim 2, characterized in that: The reset member (10) includes a spring, and the swing arm (2) and the gear shift handle (8) are both provided with connecting holes (12), and the two ends of the spring are hung at the connecting holes (12).

4. The quick adjustment mechanism of a rotary cultivator according to claim 1, characterized in that: The gear shift handle (8) has a detachable guide column (13), and the swing arm (2) is provided with a sliding groove (15) through which the guide column (13) passes and slidably cooperates with the guide column (13).

5. A quick adjustment mechanism for a rotary cultivator according to claim 4, characterized in that: The guide column (13) is provided with a ring groove at both ends, and a clamping spring (14) is clamped at the ring groove.

6. A quick adjustment mechanism for a rotary cultivator according to claim 1 or 4, characterized in that: The clamping post (9) passes through the swing arm (2), and the swing arm (2) is provided with a guide groove (16) slidably cooperating with the clamping post (9).

7. The quick adjustment mechanism of a rotary cultivator according to claim 1, characterized in that: The gear shift handle (8) is bent to have a handle portion (17).

8. The quick adjustment mechanism of a rotary cultivator according to claim 1, characterized in that: The swing arm (2) and the cutter (5) are provided with corresponding mounting holes (18), and a connecting pin (19) is arranged in the mounting holes (18) to connect the swing arm (2) and the cutter (5).

9. A quick adjustment mechanism for a rotary cultivator according to claim 8, characterized in that: The mounting holes (18) on the cutter (5) are spaced apart along the length direction of the cutter (5).

10. The quick adjustment mechanism of claim 1, wherein: The width of the installation groove (4) is greater than the width of the cutter (5), and one end of the cutter (5) is conically arranged.

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