Handrail adjusting device of mini-tiller

Abstract

The utility model belongs to the technical field of adjusting devices, and particularly relates to a mini-tiller handrail adjusting device which comprises a base, a rotating shaft is rotationally installed on the inner side of the base, the top of the rotating shaft is fixed to a rotating adjusting seat, bolt holes are formed between the top and the bottom of the rotating adjusting seat and in the top of the base, and a protective cover is installed on the top of the rotating adjusting seat. A left fixing support and a right fixing support are fixedly arranged at the positions, located on the inner side of the protective cover, of the top of the rotating adjusting base, a pitch angle rotating adjusting base is arranged between the two fixing supports, a plurality of first limiting tooth grooves are formed in the top of the pitch angle rotating adjusting base, a first lifting rod is inserted into the top of the protective cover, and first limiting teeth are installed at the bottom of the first lifting rod. Arc-shaped rods are arranged on the two sides of the pitch angle rotation adjusting base, a plurality of second limiting tooth grooves are formed in one side of each arc-shaped rod, and a sliding base is installed on the outer side of each arc-shaped rod in a sliding mode, the adjusting function of the device is more comprehensive, adjusting is convenient, and the convenience of adjusting the grab rail is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of adjustment devices, specifically relating to an adjustment device for the handlebars of a micro-tiller. Background Technology

[0002] Mini tillers are designed specifically for orchards, vegetable gardens, greenhouses, hilly slopes, and small plots (paddy and dry fields) in my country's vast hilly and mountainous areas, characterized by small plots, significant elevation differences, and the lack of accessible farm roads. They effectively till, loosen, and break up the soil, improving aeration and water retention, thus providing a better environment for plant growth. Furthermore, when equipped with appropriate attachments, mini tillers can also perform tasks such as water pumping, power generation, pesticide spraying, and sprinkler systems, and can even tow trailers for short-distance transport.

[0003] To accommodate users of different body types, the handlebars of mini tillers need to be height-adjustable. Additionally, to adapt to terrain, the handlebars sometimes need to be rotated to the side of the tiller, allowing the operator to support the handlebars while moving the tiller. However, currently, height adjustment of the handlebars requires tightening bolts, which is inconvenient. Furthermore, there is no function to adjust the distance between the two handlebars, making it impossible to adjust the distance according to the user's size. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a micro-tiller handle adjustment device. This device can adjust the tilt angle, overall orientation, and the angle between the two handles. The adjustment function is more comprehensive and convenient. It also allows for easy re-fixing of the handles after adjustment, greatly improving the convenience of handle adjustment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a micro-tiller handle adjustment device, comprising a base, a rotating shaft rotatably mounted on the inner side of the base, the top of the rotating shaft being fixed to a rotation adjustment seat, bolt holes provided between the top and bottom of the rotation adjustment seat and on the top of the base, a protective cover mounted on the top of the rotation adjustment seat, two fixed supports fixedly mounted on the top of the rotation adjustment seat inside the protective cover, a pitch angle rotation adjustment seat provided between the two fixed supports, a plurality of first limiting tooth grooves provided on the top of the pitch angle rotation adjustment seat, a first lifting rod inserted into the top of the protective cover, a first limiting tooth installed at the bottom of the first lifting rod, arc-shaped rods provided on both sides of the pitch angle rotation adjustment seat, a plurality of second limiting tooth grooves provided on one side of the arc-shaped rods, a slide block slidably mounted on the outer side of the arc-shaped rods, one end of the slide block being connected to a handlebar connecting rod, one end of the handlebar connecting rod being connected to a handlebar, a mounting block provided on the side of the slide block and a second lifting rod inserted therein, a second limiting tooth provided at the bottom of the second lifting rod.

[0006] The beneficial effects of this utility model are as follows: This device can adjust the tilt angle, overall orientation, and spacing angle between two handrails. Adjusting the tilt angle and spacing angle between two handrails can be done simply by pulling the lifting ring to raise and unlock the first lifting rod, the first limiting tooth, the second lifting rod, and the second limiting tooth. The adjustment is convenient, and the cooperation between the first limiting tooth groove and the first spring and the first limiting tooth, as well as the cooperation between the second limiting tooth groove and the second spring and the second limiting tooth, allows for easy re-fixing of the handrail after adjustment, greatly improving the convenience of handrail adjustment.

[0007] To fix the pitch angle adjustment seat:

[0008] As a further improvement to the above technical solution: one side of the fixed bracket is provided with an annular groove, and both sides of the pitch angle rotation adjustment seat are provided with limiting protrusions, which are inserted and connected to the annular groove.

[0009] The beneficial effects of this improvement are: the cooperation between the annular groove and the limiting protrusion helps to fix the pitch angle rotation adjustment seat on the fixed bracket, and at the same time, through the sliding relationship between the annular groove and the limiting protrusion, the pitch angle rotation adjustment seat can rotate inside the fixed bracket.

[0010] For the automatic reset of the first and second limit teeth:

[0011] As a further improvement to the above technical solution: a first spring is sleeved on the outer side of the first lifting rod, and a second spring is sleeved on the outer side of the second lifting rod.

[0012] The beneficial effects of this improvement are as follows: the first spring and the second spring are compressed and store energy when the first limiting tooth and the second limiting tooth rise. After the lifting ring is released, the first limiting tooth and the second limiting tooth can be reset by the rebound force.

[0013] As a further improvement to the above technical solution: both the top of the first lifting rod and the second lifting rod are fixedly provided with lifting rings.

[0014] The lifting ring is used to pull the first lifting rod and the second lifting rod.

[0015] The top of the protective cover is provided with a through groove, and the top of the second lifting rod is also provided with a through groove.

[0016] The beneficial effects of this improvement are: the through groove is also arc-shaped, which limits the movement of the second lifting rod without affecting the movement of the second lifting rod with the slide.

[0017] To reinforce the support between the two sets of handrails:

[0018] As a further improvement to the above technical solution: one side of one handrail is connected to an auxiliary fixing rod, and one side of the other handrail is connected to a telescopic rod, with the auxiliary fixing rod and the telescopic rod being inserted and connected together.

[0019] The beneficial effects of this improvement are as follows: both the auxiliary fixing rod and the telescopic rod are arc-shaped, and their centers are located at the same point as the center of the arc-shaped rod. When the slide block slides along the arc-shaped rod, the auxiliary fixing rod and the telescopic rod can extend and retract with the movement of the handrail, while maintaining the reinforcement support between the two sets of handrails.

[0020] As a further improvement to the above technical solution: the base and the rotating adjustment seat are fixed together by locking bolts connected by bolt holes.

[0021] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of the present invention;

[0024] Figure 3 This is a partial cross-sectional view of the present invention;

[0025] Figure 4 This is a partial side sectional view of the present invention;

[0026] Figure 5 This is a schematic diagram showing the separation of the fixed bracket and the pitch angle rotation adjustment seat in this utility model;

[0027] Figure 6 This is a schematic diagram of the installation of the slide block and the arc-shaped rod in this utility model;

[0028] In the diagram: 1. Base; 2. Rotating shaft; 3. Rotation adjustment seat; 4. Bolt hole; 5. Protective cover; 6. Fixed bracket; 7. Annular groove; 8. Pitch angle rotation adjustment seat; 9. Limiting protrusion ring; 10. First limiting tooth groove; 11. First lifting rod; 12. First spring; 13. First limiting tooth; 14. Lifting ring; 15. Arc rod; 16. Second limiting tooth groove; 17. Slide seat; 18. Handrail connecting rod; 19. Handrail; 20. Second lifting rod; 21. Second spring; 22. Second limiting tooth; 24. Through groove; 25. Auxiliary fixing rod; 26. Telescopic rod; 27. Locking bolt. Detailed Implementation

[0029] 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.

[0030] like Figure 1-6 As shown, a micro-tiller handle adjustment device includes a base 1. A rotating shaft 2 is rotatably mounted on the inner side of the base 1. The top of the rotating shaft 2 is fixed to a rotation adjustment seat 3. Bolt holes 4 are provided between the top and bottom of the rotation adjustment seat 3 and on the top of the base 1. A protective cover 5 is installed on the top of the rotation adjustment seat 3. Two left and right fixed brackets 6 are fixedly mounted on the top of the rotation adjustment seat 3 inside the protective cover 5. A pitch angle rotation adjustment seat 8 is provided between the two fixed brackets 6. The top of the pitch angle rotation adjustment seat 8 is provided with multiple first limiting tooth grooves 10. The top of the protective cover 5... A first lifting rod 11 is inserted and installed in the part. A first limiting tooth 13 is installed at the bottom of the first lifting rod 11. Both sides of the pitch angle rotation adjustment seat 8 are provided with arc-shaped rods 15. One side of the arc-shaped rod 15 is provided with multiple second limiting tooth grooves 16. A slide seat 17 is slidably installed on the outer side of the arc-shaped rod 15. One end of the slide seat 17 is connected to the handrail connecting rod 18. One end of the handrail connecting rod 18 is connected to the handrail 19. A mounting block is provided on the side of the slide seat 17 and a second lifting rod 20 is inserted and installed. The bottom of the second lifting rod 20 is provided with a second limiting tooth 22.

[0031] This device can adjust the tilt angle, overall orientation, and spacing angle between the two handrails 19. Adjusting the tilt angle and spacing angle between the two handrails 19 can be done simply by pulling the lifting ring 14 to raise and unlock the first lifting rod 11, the first limiting tooth 13, the second lifting rod 20, and the second limiting tooth 22. At the same time, through the cooperation of the first limiting tooth groove 10 and the first spring 12 and the first limiting tooth 13, as well as the cooperation of the second limiting tooth groove 16 and the second spring 21 and the second limiting tooth 22, the handrails 19 can be easily re-fixed after adjustment, greatly improving the convenience of adjusting the handrails 19.

[0032] The fixed bracket 6 has an annular groove 7 on one side, and the pitch angle rotation adjustment seat 8 has limiting protrusions 9 on both sides, and the limiting protrusions 9 are inserted into the annular groove 7.

[0033] The annular groove 7 and the limiting protrusion 9 cooperate to help fix the pitch angle rotation adjustment seat 8 on the fixed bracket 6. At the same time, through the sliding relationship between the annular groove 7 and the limiting protrusion 9, the pitch angle rotation adjustment seat 8 can rotate inside the fixed bracket 6.

[0034] A first spring 12 is sleeved on the outer side of the first lifting rod 11, and a second spring 21 is sleeved on the outer side of the second lifting rod 20.

[0035] The first spring 12 and the second spring 21 are compressed and store energy when the first limiting tooth 13 and the second limiting tooth 22 rise. After the lifting ring 14 is released, the first limiting tooth 13 and the second limiting tooth 22 can be driven to reset by the rebound force.

[0036] The top of both the first lifting rod 11 and the second lifting rod 20 is fixedly provided with a lifting ring 14.

[0037] The lifting ring 14 is used to pull the first lifting rod 11 and the second lifting rod 20.

[0038] The top of the protective cover 5 is provided with a through groove 24, and the top of the second lifting rod 20 is provided with a through groove 24.

[0039] The through groove 24 is also arc-shaped, which limits the second lifting rod 20, while not affecting the movement of the second lifting rod 20 with the slide 17.

[0040] One side of one handrail 19 is connected to an auxiliary fixing rod 25, and the other side of the handrail 19 is connected to a telescopic rod 26. The auxiliary fixing rod 25 and the telescopic rod 26 are inserted and connected to each other.

[0041] Both the auxiliary fixing rod 25 and the telescopic rod 26 are arc-shaped, and their centers are located at the same point as the center of the arc rod 15. When the slide block 17 slides along the arc rod 15, the auxiliary fixing rod 25 and the telescopic rod 26 can extend and retract with the movement of the handrail 19, while maintaining the reinforcement support between the two sets of handrails 19.

[0042] The base 1 and the rotating adjustment seat 3 are fixed together by locking bolts 27 and connecting bolt holes 4.

[0043] The working principle and usage of this utility model: The base 1 of this device is fixed on the micro-tiller. Through various adjustment mechanisms, the pitch angle, orientation, and angular distance between the two sets of handlebars 19 can be adjusted. By pulling the lifting ring 14 at the top of the first lifting rod 11 upwards, the first limiting tooth 13 can be driven to rise. While compressing the first spring 12, the first limiting tooth 13 disengages from the first limiting tooth groove 10. At this time, the handlebars 19 can be rotated up and down. Since the two sets of handlebars 19 are connected by the auxiliary fixing rod 25 and the telescopic rod 26, when one set of handlebars 19 is rotated, the other set of handlebars 19 also rotates up and down. The first limiting tooth groove 10, together with the pitch angle rotation adjustment seat 8, rotates through the engagement between the annular groove 7 and the limiting protrusion 9. When the appropriate pitch angle is adjusted, the lifting ring 14 above the first lifting rod 11 can be released. Under the rebound force of the first spring 12, the first lifting rod 11 and the first limiting tooth 13 return to their original position downwards. By finely adjusting the pitch angle of the handrail 19, the first limiting tooth groove 10 closest to the first limiting tooth 13 is aligned with it, allowing the first limiting tooth 13 to insert into the first limiting tooth groove 10, thus fixing the pitch angle rotation adjustment seat 8 and fixing the pitch angle of the handrail 19. When adjusting the angular distance between the two sets of handrails 19, the second lifting rod 20 is pulled upwards. The lifting ring 14 of the second lifting rod 20, along with the second limiting tooth 22, rises, compressing the second spring 21 and disengaging the second limiting tooth 22 from the second limiting tooth groove 16. At this point, the slide block 17 can slide along the arc-shaped rod 15. Due to the arc shape of the arc-shaped rod 15, the angle of the handrail 19 can be adjusted simultaneously with the horizontal position. After adjustment, the lifting ring 14 above the second lifting rod 20 is released. Under the rebound force of the second spring 21, the second lifting rod 20 and the second limiting tooth 22 automatically descend and reset. The handrail 19 then drives the slide block 17 to slide on the arc-shaped rod 15, causing the second limiting tooth groove 16, which is closest to the second limiting tooth 22, to engage with it. Alignment allows the second limiting tooth 22 to re-engage with the second limiting tooth groove 16 under the elastic force of the second spring 21, fixing the slide 17 and the arc rod 15, thus completing the fixation of the handrail 19. When adjusting the overall orientation of the two handrails 19, remove the locking bolt 27 connecting the bolt holes 4 on the base 1 and the rotating adjustment seat 3. This allows the rotating adjustment seat 3 to be rotated, adjusting the overall orientation of the handrails 19. After adjustment, the locking bolt 27 can be reconnected to the bolt holes 4 on the base 1 and the rotating adjustment seat 3. In summary, this device can adjust the pitch angle, overall orientation, and the included angle between the two handrails 19.Adjusting the pitch angle of the handrail 19 and the angle between the two handrails 19 can be done simply by pulling the lifting ring 14 to raise and unlock the first lifting rod 11, the first limiting tooth 13, the second lifting rod 20, and the second limiting tooth 22. Simultaneously, the cooperation of the first limiting tooth groove 10 with the first spring 12 and the first limiting tooth 13, and the cooperation of the second limiting tooth groove 16 with the second spring 21 and the second limiting tooth 22, allows for easy re-fixing of the handrail 19 after adjustment, greatly improving the convenience of adjusting the handrail 19.

[0044] 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.

[0045] 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.

[0046] 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 micro-tiller handle adjustment device, characterized in that: The system includes a base (1), on which a rotating shaft (2) is rotatably mounted. The top of the rotating shaft (2) is fixed to a rotating adjustment seat (3). Bolt holes (4) are provided between the top and bottom of the rotating adjustment seat (3) and on the top of the base (1). A protective cover (5) is installed on the top of the rotating adjustment seat (3). Two fixed supports (6) are fixedly mounted on the top of the rotating adjustment seat (3) inside the protective cover (5). A pitch angle rotating adjustment seat (8) is provided between the two fixed supports (6). The top of the pitch angle rotating adjustment seat (8) is provided with multiple first limiting tooth grooves (10). A device is inserted into the top of the protective cover (5). The first lifting rod (11) has a first limiting tooth (13) installed at its bottom. Both sides of the pitch angle rotation adjustment seat (8) are provided with arc rods (15). One side of the arc rod (15) is provided with multiple second limiting tooth grooves (16). A slide seat (17) is slidably installed on the outer side of the arc rod (15). One end of the slide seat (17) is connected to the handrail connecting rod (18). One end of the handrail connecting rod (18) is connected to the handrail (19). The side of the slide seat (17) is provided with an installation block and a second lifting rod (20) is inserted and installed. The bottom of the second lifting rod (20) is provided with a second limiting tooth (22).

2. The micro-tiller handle adjustment device according to claim 1, characterized in that: The fixed bracket (6) has an annular groove (7) on one side, and the pitch angle rotation adjustment seat (8) has a limiting protrusion (9) on both sides. The limiting protrusion (9) is inserted into the annular groove (7).

3. The micro-tiller handle adjustment device according to claim 1, characterized in that: A first spring (12) is sleeved on the outer side of the first lifting rod (11), and a second spring (21) is sleeved on the outer side of the second lifting rod (20).

4. The micro-tiller handle adjustment device according to claim 1, characterized in that: The top of both the first lifting rod (11) and the second lifting rod (20) is fixedly provided with a lifting ring (14).

5. The micro-tiller handle adjustment device according to claim 1, characterized in that: The top of the protective cover (5) is provided with a through groove (24), and the top of the second lifting rod (20) is provided with a through groove (24).

6. The micro-tiller handle adjustment device according to claim 1, characterized in that: One of the handrails (19) is connected to an auxiliary fixing rod (25) on one side, and the other handrail (19) is connected to a telescopic rod (26) on one side. The auxiliary fixing rod (25) and the telescopic rod (26) are inserted and connected to each other.

7. The micro-tiller handle adjustment device according to claim 1, characterized in that: The base (1) and the rotating adjustment seat (3) are fixed together by locking bolts (27) and connecting bolt holes (4).

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