Handle elastic seat of mini-tiller

By installing a hydraulic spring damper on the handlebars of the micro-tiller to buffer vibrations, the problem of vibrations being transmitted to the operator's arm is solved, reducing the adverse effects of vibrations on the arm and improving the operator's work comfort.

CN224111654UActive Publication Date: 2026-04-14CHONGQING XINTONG MACHINERY MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

When a mini tiller is running, mechanical vibrations are transmitted to the operator's arm through the handlebar, leading to health problems such as obstructed local blood circulation, muscle fatigue, and arm vibration syndrome.

Method used

By employing a combination of a first hydraulic spring damper and a second hydraulic spring damper, and utilizing the characteristics of rotation and elastic extension, vibrations on the handle are comprehensively buffered, reducing the amount of vibration transmitted to the operator's arm.

Benefits of technology

The damping device reduces the amount of vibration on the operator's arm, minimizing the adverse effects of vibration on the arm and improving the operator's working conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of mini-tillers, and particularly relates to a mini-tiller handle elastic seat which comprises a fixed base, an adjusting supporting seat is fixedly arranged at the top of the fixed base, an adjusting rotating seat is arranged on the outer side of the adjusting supporting seat, a telescopic rod sleeve is arranged on one side of the adjusting rotating seat, and a telescopic rod is installed on the inner side of the telescopic rod sleeve in an inserted mode. One end of the telescopic rod is fixed to the connecting base, a first hydraulic spring damper is rotationally installed between the adjusting rotating base and the connecting base, a sliding rail is fixedly arranged on one side of the connecting base, a sliding block is slidably arranged on the inner side of the sliding rail, a first pin joint base is fixedly installed on one side of the sliding block, and a connecting plate is in pin joint with the inner side of the first pin joint base. A first bearing seat is arranged at the bottom of the connecting plate, a second pin joint seat is arranged at the bottom of the first bearing seat, a second bearing seat is arranged at the top of the supporting plate, a third pin joint seat is arranged at the top of the second bearing seat, and a second hydraulic spring damper is in pin joint between the third pin joint seat and the second pin joint seat; the device can reduce the adverse effect of vibration on the arm of an operator.
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Description

Technical Field

[0001] This utility model belongs to the field of micro-tiller technology, specifically relating to a micro-tiller handle elastic seat. Background Technology

[0002] A mini tiller is a small tillage machine, mainly used for cultivating small plots of land such as dry land, paddy fields, orchards, and vegetable gardens in hilly, mountainous, and plain areas. A common type is the walk-behind mini tiller, which consists of a power unit and a tillage device. The operator needs to walk behind or to the side of it to operate it. The most common power unit is a diesel engine.

[0003] When a mini-tiller is running, the mechanical vibration generated by the diesel engine is transmitted to the frame of the mini-tiller and further to the handlebars. This causes the operator's arms to be affected by vibration for a long time, which can easily lead to local blood circulation obstruction, muscle fatigue and lactic acid accumulation, and damage to nerve endings. Long-term operation of a mini-tiller can also easily cause arm vibration syndrome. In order to improve this problem, we propose a mini-tiller handlebar elastic seat. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide an elastic seat for the handle of a micro-tiller. When the micro-tiller is running, the first hydraulic spring damper and the second hydraulic spring damper work together to comprehensively buffer the vibration transmitted from the machine body to the handle by utilizing the characteristics of rotation and elastic extension, thereby reducing the amount of vibration transmitted to the operator's arm and reducing the adverse effects of vibration on the operator's arm.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flexible handle seat for a micro-tiller, comprising a fixed base and a support plate. An adjustable support seat is fixedly mounted on the top of the fixed base. An adjustable rotating seat is rotatably mounted on the outer side of the adjustable support seat. A telescopic rod sleeve is fixedly mounted on one side of the adjustable rotating seat. A telescopic rod is inserted into the inner side of the telescopic rod sleeve. One end of the telescopic rod is fixed to a connecting seat. A first hydraulic spring damper is rotatably mounted between the adjustable rotating seat and the connecting seat. A slide rail is fixedly mounted on one side of the connecting seat. A slider is slidably mounted on the inner side of the slide rail. A first pin seat is fixedly mounted on one side of the slider. A connecting plate is pinned to the inner side of the first pin seat. A first bearing seat is provided at the bottom of the connecting plate. A second pin seat is provided at the bottom of the first bearing seat. A second bearing seat is provided at the top of the support plate. A third pin seat is provided at the top of the second bearing seat. A second hydraulic spring damper is pinned between the third pin seat and the second pin seat. A handle mounting seat is mounted on one end of the connecting plate. A handle is fixedly connected to one side of the handle mounting seat.

[0006] The beneficial effects of this utility model are as follows: When the micro-tiller is running, the device can use the first hydraulic spring damper and the second hydraulic spring damper in combination to comprehensively buffer the vibration transmitted from the machine body to the handle by utilizing the characteristics of rotation and elastic extension, thereby reducing the amount of vibration transmitted to the operator's arm and reducing the adverse effects of vibration on the operator's arm.

[0007] For the installation of this device:

[0008] As a further improvement to the above technical solution: a first bolt hole is provided between the top and bottom of the fixed base.

[0009] The beneficial effect of this improvement is that the first bolt hole is used to cooperate with the bolt to fix the device to the mounting base on the micro-tiller.

[0010] To ensure the stability between the adjusting pivot and the adjusting support:

[0011] As a further improvement to the above technical solution: a second bolt hole is provided through the two sides of the adjusting support, and a third bolt hole is provided through the two sides of the adjusting pivot, with positioning bolts installed inside the second and third bolt holes.

[0012] The beneficial effects of this improvement are as follows: When using this device for tillage work, the adjustable rotating seat can be rotated by unscrewing the connecting second and third bolt holes, and the angle of the handle can be adjusted. The adjustment range can be determined by switching the third bolt hole aligned with the second bolt hole. After the adjustment is completed, the connection between the second and third bolt holes is reconnected, and the adjusting rotating seat and the adjusting support are re-fixed.

[0013] To secure the telescopic pole sleeve and the telescopic pole:

[0014] As a further improvement to the above technical solution: a first fixing pin insertion hole is provided between the top and bottom of the telescopic rod sleeve and between the top and bottom of the telescopic rod, and a first fixing pin is inserted into the inner side of the first fixing pin insertion hole.

[0015] When not using this device, the first fixing pin can be inserted into the first fixing pin hole to fix the telescopic sleeve and the telescopic rod, making them unable to extend or retract.

[0016] To secure the slide rail and the slider:

[0017] As a further improvement to the above technical solution: a second fixing pin hole is provided between the top and bottom of the slide rail and between the top and bottom of the slider, and a second fixing pin is inserted into the inner side of the second fixing pin hole.

[0018] When this device is not in use, the slide rail and the slider can be fixed by inserting the second fixing pin into the second fixing pin hole and connecting them, so that they can no longer slide.

[0019] To secure the connecting plate and the first pin connector:

[0020] As a further improvement to the above technical solution: a fixing pin socket is fixedly provided on the side of the connecting plate and the top of the first pin socket, and a third fixing pin is inserted into the inner side of the fixing pin socket.

[0021] When not using this device, inserting the fixing pin socket into the third fixing pin will fix the connecting plate and the first pin seat, preventing them from rotating.

[0022] To improve the structural strength of the support plate:

[0023] As a further improvement to the above technical solution, the bottom of the support plate is provided with reinforcing ribs.

[0024] The beneficial effect of this improvement is that the reinforcing ribs are used to enhance the structural strength of the support plate.

[0025] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the left front axonometric structure of this utility model;

[0027] Figure 2 This is a partial bottom view schematic diagram of the present invention;

[0028] Figure 3 This is a partial top-view diagram of the side of this utility model;

[0029] Figure 4 This is a partial side cross-sectional view of the present invention;

[0030] Figure 5 This is a schematic diagram showing the separation of the adjusting support and the adjusting rotating seat in this utility model;

[0031] In the diagram: 1. Fixed base; 2. First bolt hole; 3. Adjustable support seat; 4. Adjustable rotating seat; 5. Second bolt hole; 6. Third bolt hole; 7. Telescopic rod sleeve; 8. Telescopic rod; 9. First hydraulic spring damper; 10. Connecting seat; 11. Slide rail; 12. Slider; 13. Positioning bolt; 14. First pin joint; 15. Connecting plate; 16. Support plate; 17. First bearing seat; 18. Second pin joint; 19. Second hydraulic spring damper; 20. Third pin joint; 21. Second bearing seat; 22. Handle mounting seat; 23. Handle; 24. First fixing pin insertion hole; 25. First fixing pin; 26. Second fixing pin insertion hole; 27. Second fixing pin; 28. Fixing pin socket; 29. ​​Third fixing pin. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0033] like Figure 1-5 As shown, a flexible handlebar seat for a micro-tiller includes a fixed base 1 and a support plate 16. An adjustable support seat 3 is fixedly mounted on the top of the fixed base 1. An adjustable rotating seat 4 is rotatably mounted on the outer side of the adjustable support seat 3. A telescopic rod sleeve 7 is fixedly mounted on one side of the adjustable rotating seat 4. A telescopic rod 8 is inserted into the inner side of the telescopic rod sleeve 7. One end of the telescopic rod 8 is fixed to a connecting seat 10. A first hydraulic spring damper 9 is rotatably mounted between the adjustable rotating seat 4 and the connecting seat 10. A slide rail 11 is fixedly mounted on one side of the connecting seat 10. A slider 12 is slidably mounted on the inner side of the slide rail 11. A first pin seat 14 is fixedly installed on one side of block 12. A connecting plate 15 is pinned to the inner side of the first pin seat 14. A first bearing seat 17 is provided at the bottom of the connecting plate 15. A second pin seat 18 is provided at the bottom of the first bearing seat 17. A second bearing seat 21 is provided at the top of the support plate 16. A third pin seat 20 is provided at the top of the second bearing seat 21. A second hydraulic spring damper 19 is pinned between the third pin seat 20 and the second pin seat 18. A handle mounting seat 22 is installed at one end of the connecting plate 15. A handle 23 is fixedly connected to one side of the handle mounting seat 22.

[0034] When the micro-tiller is running, this device can work together with the first hydraulic spring damper 9 and the second hydraulic spring damper 19 to comprehensively buffer the vibration transmitted from the machine body to the handle 23 by utilizing the characteristics of rotation and elastic extension, thereby reducing the amount of vibration transmitted to the operator's arm and reducing the adverse effects of vibration on the operator's arm.

[0035] The fixed base 1 has a first bolt hole 2 extending through between its top and bottom.

[0036] The first bolt hole 2 is used to engage with bolts to fix the device onto the mounting base on the micro-tiller.

[0037] A second bolt hole 5 is provided between the two sides of the adjusting support 3, and a third bolt hole 6 is provided between the two sides of the adjusting rotating seat 4. A positioning bolt 13 is installed on the inner side of the second bolt hole 5 and the third bolt hole 6.

[0038] When using this device for tillage, unscrew 30 connecting the second bolt hole 5 and the third bolt hole 6 to rotate the adjusting base 4 and adjust the angle of the handle 23. The adjustment range is determined by switching the third bolt hole 6 aligned with the second bolt hole 5. After adjustment, reconnect the second bolt hole 5 and the third bolt hole 6 using 30 to re-fix the adjusting base 4 and the adjusting support 3.

[0039] A first fixing pin hole 24 is provided between the top and bottom of the telescopic rod sleeve 7 and between the top and bottom of the telescopic rod 8, and a first fixing pin 25 is inserted into the inner side of the first fixing pin hole 24.

[0040] When not using this device, the first fixing pin 24 and the first fixing pin 25 are inserted and connected to fix the telescopic sleeve 7 and the telescopic rod 8, making them unable to extend or retract.

[0041] A second fixing pin hole 26 is provided between the top and bottom of the slide rail 11 and between the top and bottom of the slider 12, and a second fixing pin 27 is inserted into the inner side of the second fixing pin hole 26.

[0042] When not using this device, inserting the second fixing pin 26 into the second fixing pin 27 will fix the slide rail 11 and the slider 12, preventing them from sliding together.

[0043] The side of the connecting plate 15 and the top of the first pin seat 14 are both fixedly provided with a fixing pin socket 28, and a third fixing pin 29 is inserted into the inner side of the fixing pin socket 28.

[0044] When not using this device, after inserting and connecting the fixing pin socket 28 and the third fixing pin 29, the connecting plate 15 and the first pin seat 14 can be fixed so that they can no longer rotate.

[0045] The bottom of the support plate 16 is provided with reinforcing ribs.

[0046] The reinforcing ribs are used to improve the structural strength of the support plate 16.

[0047] The working principle and usage process of this utility model are as follows: When using this device for tillage, unscrew the 30 connecting the second bolt hole 5 and the third bolt hole 6 to rotate the adjusting base 4 and adjust the angle of the handle 23. The adjustment range is determined by switching the third bolt hole 6 aligned with the second bolt hole 5. After adjustment, reconnect the second bolt hole 5 and the third bolt hole 6 using the 30, and re-fix the adjusting base 4 and the adjusting support 3. Remove the first fixing pin 25, the second fixing pin 27, and the third fixing pin 29, and disconnect the telescopic rod sleeve 7 and the telescopic rod 8, as well as the slide rail 11 and the slider. The fixing between 12, connecting plate 15, and first pin seat 14 unlocks the handle damping function of this device. Multiple buffer devices exist between the handle 23 and adjusting pivot 4. When the diesel engine of the micro-tiller is running, vibrations are transmitted to the adjusting pivot 4, and then to the handle 23. These buffer devices effectively cushion the vibrations. Since the telescopic sleeve 7 and telescopic rod 8 are telescopic, and the adjusting pivot 4 and connecting seat 10 are connected by a slide rail 11 via a first hydraulic spring damper 9 and a pin connection, the telescopic sleeve 7, telescopic rod 8, and connecting seat 10 can cooperate to achieve the desired vibration damping. The system buffers vibration forces in the forward and backward directions. Simultaneously, since the slide rail 11 can slide inside the slider 12, and the first pin joint 14 is rotatably connected to the connecting plate 15, a second hydraulic spring damper 19 is rotatably mounted between the connecting plate 15 and the support plate 16 via a first bearing seat 17, a second pin joint 18, a third pin joint 20, and a second bearing seat 21. The second hydraulic spring damper 19 can rotate and extend in all directions via the cooperation of the first bearing seat 17, the second pin joint 18, the third pin joint 20, and the second bearing seat 21. When the slide rail 11 slides within the slider 12, the second hydraulic spring damper 19 can... The device then performs corresponding rotation and extension movements to buffer vibrations from the left and right directions. When the first pin joint 14 and the connecting plate 15 rotate, the second hydraulic spring damper 19 can also perform corresponding rotation and extension movements to buffer vibrations from the up and down directions. In summary, when the micro-tiller is running, this device can use the first hydraulic spring damper 9 and the second hydraulic spring damper 19 in combination to comprehensively buffer vibrations transmitted from the machine body to the handle 23 by utilizing the characteristics of rotation and elastic extension, thereby reducing the amount of vibration transmitted to the operator's arm and reducing the adverse effects of vibration on the operator's arm.

[0048] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0049] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A flexible handlebar seat for a micro-tiller, characterized in that: The system includes a fixed base (1) and a support plate (16). An adjustable support seat (3) is fixedly mounted on the top of the fixed base (1). An adjustable rotating seat (4) is rotatably mounted on the outer side of the adjustable support seat (3). A telescopic rod sleeve (7) is fixedly mounted on one side of the adjustable rotating seat (4). A telescopic rod (8) is inserted into the inner side of the telescopic rod sleeve (7). One end of the telescopic rod (8) is fixed to a connecting seat (10). A first hydraulic spring damper (9) is rotatably mounted between the adjustable rotating seat (4) and the connecting seat (10). A slide rail (11) is fixedly mounted on one side of the connecting seat (10). A slider (12) is slidably mounted on the inner side of the slide rail (11). One end of the slider (12)... A first pin seat (14) is fixedly installed on the side. A connecting plate (15) is pinned to the inner side of the first pin seat (14). A first bearing seat (17) is provided at the bottom of the connecting plate (15). A second pin seat (18) is provided at the bottom of the first bearing seat (17). A second bearing seat (21) is provided at the top of the support plate (16). A third pin seat (20) is provided at the top of the second bearing seat (21). A second hydraulic spring damper (19) is pinned between the third pin seat (20) and the second pin seat (18). A handle mounting seat (22) is installed at one end of the connecting plate (15). A handle (23) is fixedly connected to one side of the handle mounting seat (22).

2. The elastic seat for the handlebar of a micro-tiller according to claim 1, characterized in that: The fixed base (1) has a first bolt hole (2) extending through between the top and bottom.

3. The elastic seat for the handlebar of a micro-tiller according to claim 1, characterized in that: A second bolt hole (5) is provided between the two sides of the adjusting support (3), and a third bolt hole (6) is provided between the two sides of the adjusting swivel (4). A positioning bolt (13) is installed on the inner side of the second bolt hole (5) and the third bolt hole (6).

4. The elastic seat for a micro-tiller handlebar according to claim 1, characterized in that: A first fixing pin hole (24) is provided between the top and bottom of the telescopic rod sleeve (7) and between the top and bottom of the telescopic rod (8), and a first fixing pin (25) is inserted into the inner side of the first fixing pin hole (24).

5. The elastic seat for the handlebars of a micro-tiller according to claim 1, characterized in that: A second fixing pin hole (26) is provided between the top and bottom of the slide rail (11) and between the top and bottom of the slider (12), and a second fixing pin (27) is inserted into the inner side of the second fixing pin hole (26).

6. The elastic seat for the handlebar of a micro-tiller according to claim 1, characterized in that: The side of the connecting plate (15) and the top of the first pin seat (14) are both fixedly provided with a fixed pin socket (28), and a third fixed pin (29) is inserted into the inner side of the fixed pin socket (28).

7. The elastic seat for the handlebars of a micro-tiller according to claim 1, characterized in that: The bottom of the support plate (16) is provided with reinforcing ribs.