A micro tiller handrail convenient to adjust

Abstract

The utility model provides a kind of micro tiller handrail of being convenient to adjust, belong to micro tiller technical field, solve the problem that micro tiller handrail is not easy to adjust. Including handrail seat, handrail rod and connecting rod, one end of two the handrail rod is respectively hinged in handrail seat two sides, two the handrail rod can be relatively opened or gathered to adjust the relative width of the other end of handrail rod, the handrail rod includes the support rod and telescopic link that are rotatably connected by angle disc, the support rod one end of handrail rod is hinged with handrail seat, the telescopic link one end of handrail rod can be telescopic and can be relatively support rod adjusting pitch angle, the connecting rod is connected between two groups of handrail rod and length can be adjusted. The device makes each aspect of micro tiller handrail more convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of micro-tiller technology, specifically to a micro-tiller handle that is easy to adjust. Background Technology

[0002] Mini tillers, as small agricultural machines, are widely used in cultivation operations in narrow and complex terrains such as orchards, greenhouses, and hilly areas. Powered by diesel or gasoline engines, they drive the blades to rotate through a transmission system, completing agricultural operations such as turning soil, weeding, and ditching. They are lightweight, flexible, and highly adaptable, effectively reducing the intensity of manual labor and improving the mechanization level of small-scale agricultural production.

[0003] However, the handlebar adjustment function of existing mini tillers has significant shortcomings. Traditional handlebars mostly adopt a fixed or simple angle adjustment design, which makes it difficult to quickly adapt to the working terrain, crop row spacing, and operator height. Adjustment often requires tools, which is cumbersome and time-consuming, seriously affecting work efficiency. At the same time, the height, angle, and width of the handlebar lack a linkage adjustment mechanism, resulting in poor ergonomic design.

[0004] Therefore, it is necessary to develop an easily adjustable handle for micro-tillers to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model proposes an easily adjustable handrail for a micro-tiller, which allows the handrail to be freely, conveniently and quickly adjusted according to usage habits and working environment during operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An adjustable handlebar for a micro-tiller, characterized in that it comprises: Armrest base, armrest bar, and connecting rod; One end of each of the two handrails is hinged to both sides of the handrail seat, and the two handrails can be opened or closed relative to each other to adjust the relative width of the other end of the handrails; The handrail includes a support rod and a telescopic rod that are rotatably connected by an angle plate. One end of the support rod is hinged to the handrail seat, and one end of the telescopic rod can extend and retract and can adjust the pitch angle relative to the support rod. The connecting rod connects the two sets of handrails and its length is adjustable.

[0007] Optionally, the angle plate is provided with a first limiting hole arranged in a ring.

[0008] Optionally, the telescopic rod is provided with an outer rod and an inner rod. The outer rod is fixed to the pitch angle by inserting a first pin into the first limiting hole. The outer rod is provided with a second limiting hole, which is distributed along the length direction of the outer rod. The inner rod can extend and retract along the outer rod. The inner rod is fixed to the telescopic length by inserting a second pin into the second limiting hole.

[0009] Optionally, a first slider is provided inside the outer rod, the first pin passes through the outer rod and is connected to the first slider, the first slider is provided with a first spring that can make the first slider rebound, the first slider is provided with a first groove, the sliding plane of the first groove is inclined relative to the axial direction of the first pin, and the first groove can convert the compression of the first slider along the axial direction of the outer rod into axial movement along the first pin insertion direction.

[0010] Optionally, a first pressure plate is further provided inside the outer rod. The first pressure plate is located above the first slider and can move along the axial direction of the outer rod. The first pressure plate is provided with a first sliding post that matches the first sliding groove. The first pressure plate is slidably connected to the first slider through the first sliding post. The up and down movement of the first pressure plate can drive the first slider to move along the axial direction of the first pin.

[0011] Optionally, the inner rod is located above the first pressure plate and the top of the inner rod extends beyond the outer rod. A second slider is provided inside the inner rod. The second pin passes through the inner rod and is connected to the second slider. The second slider is provided with a second spring that can make the second slider rebound. The second slider is provided with a second slide groove. The sliding plane of the second slide groove is inclined relative to the axial direction of the second pin. The second slide groove can convert the compression of the second slider along the axial direction of the inner rod into axial movement along the direction of the second pin insertion.

[0012] Optionally, a pressure rod is further provided inside the inner rod, and the pressure rod is provided with a second sliding column that matches the second sliding groove.

[0013] Optionally, a handle is provided at the top of the inner rod, a second pressure plate is provided inside the handle, and the pressure rod is connected to the second pressure plate.

[0014] Optionally, a button is provided on the second pressure plate. Moving the button can drive the second pressure plate and the pressure rod to move axially along the inner rod, thereby driving the second slider to move axially along the second pin. The second pressure plate is also provided with a third spring for resetting.

[0015] Optionally, the connecting rod includes a threaded sleeve and connecting rod segments connected to both ends of the threaded sleeve by opposite threads, with the other end of the connecting rod segment connected to the telescopic rod.

[0016] As can be seen from the above technical solution, the beneficial technical effects of this utility model are as follows: This invention enables rapid, flexible, and reliable adjustment of multiple dimensions, including the angle, height, and width of the handlebar, greatly improving the ergonomics and operational comfort of the micro-tiller. Specifically, the support rods hinged at both ends of the handlebar seat allow it to rotate left and right relative to the forward direction. The connecting rod is connected through the hinge points at both ends and the threaded sleeve in the middle. Rotating the threaded sleeve adjusts the distance between the telescopic rods on both sides, thereby quickly changing the handlebar width to match different crop row spacings and operating habits, ensuring overall stability and maneuverability during operation.

[0017] The adjustment mechanism is integrated into the button on the handle, which allows for one-handed control of the movement of the first and second pins. Operators can unlock, adjust, and lock the angle and height separately or simultaneously without tools or bending over, making the operation process exceptionally convenient and efficient. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the interior of the outer rod of this utility model.

[0020] 1. Armrest base; 2. Support rod; 3. Angle plate; 301. First limiting hole; 4. Handle; 401. Second pressure plate; 402. Third spring; 403. Button; 5. Connecting rod; 501. Threaded sleeve; 6. Outer rod; 601. First pin; 602. First slider; 603. First spring; 604. First slide groove; 605. First pressure plate; 606. First slide column; 607. Second limiting hole; 7. Inner rod; 701. Second pin; 702. Second slider; 703. Second spring; 704. Second slide groove; 705. Second slide column; 706. Pressure rod. Detailed Implementation

[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0022] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0023] Example 1 An adjustable handrail for a micro-tiller includes a handrail base 1, handrail bars, and a connecting rod 5. One end of each of the two handrail bars is hinged to one side of the handrail base 1. The two handrail bars can open or close relative to each other to adjust the relative width of the other ends. Each handrail bar includes a support rod 2 and a telescopic rod rotatably connected via an angle plate 3. One end of the support rod 2 is hinged to the handrail base 1. One end of the telescopic rod is telescopic and can adjust its pitch angle relative to the support rod 2. The connecting rod 5 connects the two sets of handrail bars and its length is adjustable. The telescopic rod has an outer rod 6 and an inner rod 7. The outer rod 6 has a first pin 601 inserted into a first limiting hole 301 to fix the pitch angle. The outer rod 6 also has a second limiting hole 607 distributed along its length. The inner rod 7 can extend and retract along the outer rod 6, and its extension length is fixed by a second pin 701 inserted into the second limiting hole 607. Angle plate 3 is provided with a first limiting hole 301 arranged in a ring.

[0024] The handrail seat 1 is hinged to support rods 2 at both ends, allowing it to open or close. In some cases, the hinge shaft between the support rod 2 and the handrail seat 1 can be a threaded rod, which can be loosened and rotated for adjustment, so that the support rod 2 can be fixed after adjustment rather than always moving. The connecting rod 5 connects the two handrail rods to achieve synchronous adjustment of the distance on both sides, allowing the handrail to be quickly adjusted to the width preferred by the operator. An angle plate 3 is fixedly installed on the support rod 2, which has a first limiting hole 301 and a telescopic rod with a hinged design, allowing the support rod 2 to be precisely fixed in different tilt positions, allowing the operator to quickly select and lock multiple handrail angles. The telescopic rod consists of an outer rod 6 and an inner rod 7. The inner rod 7 can extend and retract along the outer rod 6 and the extension length is fixed by a second pin 701 and a second limiting hole 607, so that the handrail height can flexibly adapt to operators of different heights. The second limiting holes 607 distributed along the length of the outer rod 6 allow the inner rod 7 to extend and retract and lock in multiple lengths, achieving flexible posture adaptation of the handrail. The entire system has a reasonable structure, which significantly improves the human-machine adaptability and efficiency of micro-tiller operation.

[0025] Furthermore, a first slider 602 is provided inside the outer rod 6. The first slider 602 can move along the diameter direction of the outer rod 6. A first pin 601 passes through the outer rod 6 and is connected to the first slider 602. The first slider 602 is provided with a first spring 603 that can make the first slider 602 rebound. The first spring 603 abuts against the first slider 602 opposite to the first pin 601 and between the first slider 602 and the outer rod 6. The first slider 602 is provided with a first groove 604. The sliding plane of the first groove 604 is inclined relative to the axial direction of the first pin 601. The first groove 604 can convert the compression of the first slider 602 along the axial direction of the outer rod 6 into axial movement along the first pin insertion direction. The outer rod 6 is also provided with a first pressure plate 605. The first pressure plate 605 is located above the first slider 602 and can move along the axial direction of the outer rod 6. The first pressure plate 605 is provided with a first sliding post 606 that matches the first sliding groove 604. The first pressure plate 605 is slidably connected to the first slider 602 through the first sliding post 606. The up and down movement of the first pressure plate 605 can drive the first slider 602 to move along the axial direction of the first pin 601.

[0026] The first pressure plate 605 presses down, causing the first slider 602 to move axially along the first pin 601, disengaging the first pin 601 connected to the first slider 602 from the first limiting hole 301. This allows the operator to adjust the angle of the handrail. The first spring 603 on the first slider 602 ensures that after the operator selects the desired angle, the first pin 601 automatically resets and re-inserts into the first limiting hole 301. This structure effectively reduces operating force and improves the smoothness and reliability of adjustment.

[0027] In the above embodiment, the inner rod 7 is located above the first pressure plate 605 and its top end extends beyond the outer rod 6. A second slider 702 is provided inside the inner rod 7. The second slider 702 can move along the diameter direction of the inner rod 7. A second pin 701 passes through the inner rod 7 and connects to the second slider 702. The second slider 702 is provided with a second spring 703 that allows the second slider 702 to rebound. The second spring 703 abuts against the second slider 702 opposite to the second pin 701 and between the second slider 702 and the inner rod 7. The second slider 702 is provided with a second sliding groove 704. The sliding plane of the second sliding groove 704 is inclined axially relative to the second pin 701. The second sliding groove 704 can convert the compression of the second slider 702 along the axial direction of the inner rod 7 into axial movement along the direction of the second pin insertion. A pressure rod 706 is also provided inside the inner rod 7. The pressure rod 706 is provided with a second sliding post 705 that matches the second sliding groove 704. A handle 4 is provided at the top of the inner rod 7, and a second pressure plate 401 is provided inside the handle 4. The pressure rod 706 is connected to the second pressure plate 401. A button 403 is provided on the second pressure plate 401. Moving the button 403 can drive the second pressure plate 401 and the pressure rod 706 to move axially along the inner rod 7, thereby driving the second slider 702 to move axially along the second pin 701. The second pressure plate 401 is also provided with a third spring 402 for resetting.

[0028] The second pressure plate 401 in handle 4 is connected to button 403. Pressing button 403 can push down pressure rod 706. Pressure rod 706, through the cooperation of second sliding column 705 and second sliding groove 704, converts the up-and-down movement into the axial movement of second slider 702 along second pin 701. Second pin 701 disengages from second limiting hole 607, allowing inner rod 7 to move along outer rod 6, realizing one-handed control of telescopic adjustment. After the operator selects the handrail height, releasing button 403 resets second spring 703, thereby resetting second pin 701 and securing it into second limiting hole 607. This design significantly improves operational convenience and adjustment efficiency. Furthermore, the second pressure plate 401 is provided with a third spring 402 for resetting. The third spring 402 on the second pressure plate 401 allows button 403 to automatically reset after release, preventing second pin 701 from being accidentally disengaged and ensuring that the operator can quickly lock the height after selecting the handrail height. The button 403 at the top of handle 4 controls the movement of the first pin 601 and the second pin 701, enabling quick adjustment of angle and height. In some cases, the third spring 402 can be a tension spring or a compression spring.

[0029] In the above embodiment, the connecting rod 5 includes a threaded sleeve 501 and connecting rod segments 5 connected to both ends of the threaded sleeve 501 by opposite threads. The other end of each connecting rod segment 5 is connected to a telescopic rod. The two segments of the connecting rod 5 are respectively provided with opposite threads, so that when the threaded sleeve 501 is rotated, the telescopic rods on both sides can be pulled or pushed simultaneously, realizing rapid and symmetrical adjustment of the handle width, effectively improving the adaptability and operational stability of the micro-tiller handle to different working habits.

[0030] The working process of this embodiment is as follows: Pressing button 403 on handle 4 causes the second pressure plate 401 to move the second pressure rod 706 downward along the inner rod 7. Simultaneously, the second sliding post 705 on the second pressure rod 706 moves downward within the second sliding groove 704. The second sliding groove 704 converts the downward force into a radial force, causing the second slider 702 to move the second pin 701 inward, disengaging it from the second limiting hole 607 and compressing the second spring 703. At this point, the inner rod 7 is no longer restricted. Holding button 403 in place pushes the inner rod 7 downward along the outer rod 6, causing the inner rod 7 to move the first pressure plate 601 downward. 5. Moving downwards, the first sliding column 606 on the first pressure plate 605 moves downwards simultaneously within the first sliding groove 604. The first sliding groove 604 converts the downward force into a radial force, causing the first slider 602 to move the first pin 601 inwards, disengaging it from the first limiting hole 301 and compressing the first spring 603. At this time, the angle of the outer rod 6 is adjusted to suit the operator's habits. Then, the inner rod 7 is pulled, and the first pressure plate 605 is no longer under force. The first spring 603 resets, allowing the first pin 601 to insert into the first limiting hole 301 corresponding to the angle adjustment, completing the angle adjustment. Continue pulling the inner rod 7 to suit the operator's height. Then, the button 403 is released, and the third spring 402 resets the button 403. The second spring 703 resets, allowing the second pin 701 to insert into the second limiting hole 607 corresponding to the telescopic adjustment, completing the height adjustment. Finally, the threaded sleeve 501 on the connecting rod 5 is rotated. Under the action of different threads, the two ends of the connecting rod 5 symmetrically pull or push the telescopic rods on both sides, realizing the adjustment of the distance between the handrails.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An easily adjustable handle for a micro-tiller, characterized in that, include: Armrest base, armrest bar, and connecting rod; One end of each of the two handrails is hinged to both sides of the handrail seat, and the two handrails can be opened or closed relative to each other to adjust the relative width of the other end of the handrails; The handrail includes a support rod and a telescopic rod that are rotatably connected by an angle plate. One end of the support rod is hinged to the handrail seat, and one end of the telescopic rod can extend and retract and can adjust the pitch angle relative to the support rod. The connecting rod connects the two sets of handrails and its length is adjustable.

2. The adjustable handrail for a micro-tiller as described in claim 1, characterized in that, The angle plate is provided with a first limiting hole arranged in a ring.

3. The adjustable handrail for a micro-tiller as described in claim 2, characterized in that, The telescopic rod is provided with an outer rod and an inner rod. The outer rod is fixed to the pitch angle by inserting a first pin into the first limiting hole. The outer rod is provided with a second limiting hole, which is distributed along the length direction of the outer rod. The inner rod can extend and retract along the outer rod. The inner rod is fixed to the telescopic length by inserting a second pin into the second limiting hole.

4. The adjustable handrail for a micro-tiller as described in claim 3, characterized in that, The outer rod is provided with a first slider, the first pin passes through the outer rod and is connected to the first slider, the first slider is provided with a first spring that can make the first slider rebound, the first slider is provided with a first groove, the sliding plane of the first groove is inclined relative to the axial direction of the first pin, and the first groove can convert the compression of the first slider along the axial direction of the outer rod into axial movement along the first pin insertion direction.

5. The adjustable handrail for a micro-tiller as described in claim 4, characterized in that, The outer rod is also provided with a first pressure plate, which is located above the first slider and can move along the axial direction of the outer rod. The first pressure plate is provided with a first sliding post that matches the first sliding groove. The first pressure plate is slidably connected to the first slider through the first sliding post. The up and down movement of the first pressure plate can drive the first slider to move along the axial direction of the first pin.

6. The adjustable handrail for a micro-tiller as described in claim 5, characterized in that, The inner rod is located above the first pressure plate and the top of the inner rod extends beyond the outer rod. A second slider is provided inside the inner rod. The second pin passes through the inner rod and is connected to the second slider. The second slider is provided with a second spring that can make the second slider bounce back. The second slider is provided with a second slide groove. The sliding plane of the second slide groove is inclined relative to the axial direction of the second pin. The second slide groove can convert the compression of the second slider along the axial direction of the inner rod into axial movement along the direction of the second pin insertion.

7. The adjustable handrail for a micro-tiller as described in claim 6, characterized in that, The inner rod is also provided with a pressure rod, and the pressure rod is provided with a second sliding column that matches the second sliding groove.

8. The adjustable handrail for a micro-tiller as described in claim 7, characterized in that, The inner rod is provided with a handle at its top end, and a second pressure plate is provided inside the handle. The pressure rod is connected to the second pressure plate.

9. The adjustable handrail for a micro-tiller as described in claim 8, characterized in that, The second pressure plate is provided with a button. Moving the button can drive the second pressure plate and the pressure rod to move axially along the inner rod, thereby driving the second slider to move axially along the second pin. The second pressure plate is also provided with a third spring for resetting.

10. The adjustable handrail for a micro-tiller as described in claim 1, characterized in that, The connecting rod includes a threaded sleeve and connecting rod segments connected to both ends of the threaded sleeve by opposite threads, with the other end of the connecting rod segment connected to the telescopic rod.

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