CN109220160B

CN109220160B - Height-adjusting mechanism

Info

Publication number: CN109220160B
Application number: CN201811315898.6A
Authority: CN
Inventors: 倪祖根
Original assignee: Suzhou Kingclean Precision Machinery Co Ltd
Current assignee: Suzhou Kingclean Precision Machinery Co Ltd
Priority date: 2018-11-07
Filing date: 2018-11-07
Publication date: 2024-01-30
Anticipated expiration: 2038-11-07
Also published as: CN109220160A

Abstract

The invention discloses a height adjusting mechanism, which comprises: a lifting handle of the whole machine; and an adjusting component in transmission connection with the whole machine handle, wherein the whole machine handle is provided with a height adjusting button, and the adjusting component comprises: the lifting connecting piece is in transmission connection with the height adjusting button; front and rear lifting rods slidably connected to the lifting connection members; and a front wheel mounting shaft and a rear wheel mounting shaft which are respectively connected with the front end and the rear end of the front lifting rod and the rear lifting rod in a rotating way, wherein the front wheel mounting shaft and the rear wheel mounting shaft are of double-crank structures, the front wheels are respectively connected with the two ends of the front wheel mounting shaft in a rotating way, and the rear wheels are respectively connected with the two ends of the rear wheel mounting shaft in a rotating way. According to the invention, the height adjusting button is arranged below the lifting handle of the whole machine, and the adjusting component is embedded in the shell and integrated with the whole machine, so that the multifunctional lifting handle is attractive and elegant, the problem of dirt collection and dirt collection is solved, the occupied space is reduced, the transmission accuracy is greatly improved, and the use experience of a user is improved.

Description

Height-adjusting mechanism

Technical Field

The invention relates to the field of electric garden tools, in particular to a height adjusting mechanism.

Background

On the garden instrument like hand propelled electronic lawn mower or hand propelled electronic machine of sweeping floor etc. often need to adjust the height from the ground of organism to the different processing demands of adaptation, this just needs to use the mechanism of adjusting the height of organism, and current mechanism of adjusting has following several problems: firstly, most of the existing heightening mechanisms are external, so that the appearance is not attractive, and the problems of the heightening mechanisms that the shells are stuck, the juice of grass leaves is polluted until corrosion and rust are caused by absorbing sundries such as grass leaves, garbage and the like in weeding or sweeping operation are solved; the occupied space is large, so that the body volume and the occupied area of the electric gardening tool are large, and an operator cannot use the electric gardening tool conveniently; the transmission has hysteresis, so that the transmission is insensitive and the lifting height is inaccurate. In view of the foregoing, it is necessary to develop a height adjusting mechanism for solving the above-mentioned problems.

Disclosure of Invention

Aiming at the defects existing in the prior art, the invention aims to provide the height adjusting mechanism, and the height adjusting button is arranged below the whole machine handle, so that the adjusting component is embedded in the shell and integrated with the whole machine, thereby being attractive and elegant, solving the problem of dirt collection and scale collection, reducing the occupied space, greatly improving the transmission accuracy and improving the use experience of users.

To achieve the above objects and other advantages and in accordance with the purpose of the invention, there is provided a height adjusting mechanism comprising:

a lifting handle of the whole machine; and

an adjusting component in transmission connection with the lifting handle of the whole machine,

wherein, be equipped with on the complete machine handle and adjust high button, adjusting part includes:

the lifting connecting piece is in transmission connection with the height adjusting button;

front and rear lifting rods slidably connected to the lifting connection members; and

a front wheel installation shaft and a rear wheel installation shaft which are respectively connected with the front end and the rear end of the front lifting rod and the rear lifting rod in a rotating way,

wherein, front wheel installation axle and rear wheel installation axle are two crank structures, and the both ends of front wheel installation axle all rotate and are connected with the front wheel, and the both ends of rear wheel installation axle all rotate and are connected with the rear wheel.

Preferably, the lifting connecting piece comprises a transmission rod and a connecting piece which are sequentially arranged from top to bottom, wherein the transmission rod comprises a top extending section, a middle extending section and a bottom extending section which are integrally combined from top to bottom, and the connecting piece is fixedly connected with the bottom extending section.

Preferably, the connecting piece is provided with a connecting slot, the upper edge of the connecting slot is provided with at least two locking slots communicated with the connecting slot, the surface of the front lifting rod and the surface of the rear lifting rod are fixedly connected with sliding ends which are horizontally outwards protruded, and the sliding ends penetrate into the connecting slot and are in sliding connection with the connecting piece, so that the sliding ends are selectively scratched into one of the locking slots and are locked by the locking slot in the sliding process along the connecting slot.

Preferably, the connecting through groove is in a circular arc shape and bulges upwards, and the locking through groove extends vertically upwards.

Preferably, the top extension section, the middle extension section and the bottom extension section are all positioned on the same vertical plane, the connecting sheet is provided with an upper positioning groove and a lower positioning groove, and a connecting line between the upper positioning groove and the lower positioning groove extends along the vertical direction.

Preferably, the front lifting rod and the rear lifting rod are fixedly connected with positioning pieces, the surfaces of the positioning pieces are fixedly connected with an upper positioning end and a lower positioning end which are horizontally outwards protruded, a connecting line between the upper positioning end and the lower positioning end extends along the vertical direction, and an upper positioning groove and a lower positioning groove are respectively in sliding fit with the upper positioning end and the lower positioning end.

Preferably, the upper positioning groove and the lower positioning groove are elongated and extend along the vertical direction.

Preferably, the top extension section and the bottom extension section are parallel and spaced, and the middle extension section is obliquely connected between the top extension section and the bottom extension section, so that the upper end and the lower end of the middle extension section are fixedly connected with the top extension section and the bottom extension section respectively.

Preferably, the top extension and the bottom extension extend in a vertical direction, and the upper end of the middle extension is integrally connected with the lower end of the top extension, and the lower end of the middle extension is integrally connected with the upper end of the bottom extension, so that the middle extension forms an included angle ω with the top extension or the bottom extension.

Preferably, the two ends of the front wheel mounting shaft are respectively integrally connected with a first front crank and a second front crank, the tail ends of the first front crank and the second front crank are respectively fixedly connected with a first front rotating shaft and a second front rotating shaft, the two ends of the rear wheel mounting shaft are respectively integrally connected with a first rear crank and a second rear crank, the tail ends of the first rear crank and the second rear crank are respectively fixedly connected with a first rear rotating shaft and a second rear rotating shaft, the front lifting rod and the rear lifting rod are rotatably connected between the first front crank and the first rear crank or between the second front crank and the second rear crank, and the front wheel mounting shaft, the first front rotating shaft, the second front rotating shaft, the rear wheel mounting shaft, the first rear rotating shaft and the second rear rotating shaft are all parallel to each other.

Preferably, the front and rear lifting rods are integrally formed with a front extending section and a rear extending section extending obliquely downwards at two ends respectively, the included angles between the front extending section and the rear extending section and the front and rear lifting rods are included angles alpha and included angles beta respectively, the tail ends of the front extending section and the tail ends of the rear extending section are respectively connected with a front rotating connecting rod and a rear rotating connecting rod in a rotating manner, and the front rotating connecting rod and the rear rotating connecting rod are respectively fixedly connected with a first front crank and a first rear crank or a second front crank and a second rear crank.

Compared with the prior art, the invention has the beneficial effects that: through arranging the height-adjusting button below the whole machine handle, the adjusting component is embedded in the shell and integrated with the whole machine, so that the multifunctional lifting device is attractive and elegant, solves the problem of dirt collection and scale collection, reduces the occupied space, simultaneously greatly improves the transmission accuracy, and improves the use experience of users.

Drawings

FIG. 1 is a three-dimensional view of a mower incorporating a height adjustment mechanism according to the present invention;

FIG. 2 is a three-dimensional view of the height adjustment mechanism according to the present invention in combination with the front and rear wheels;

FIG. 3 is a three-dimensional view of the elevation adjustment mechanism according to the present invention;

FIG. 4 is a three-dimensional view of the elevation mechanism according to the present invention at another view angle;

FIG. 5 is a front view of a height adjustment mechanism according to the present invention;

FIG. 6 is a three-dimensional view of the lift mechanism with the lift link hidden according to the present invention;

FIG. 7 is a front view of the lift mechanism with the lift link hidden according to the present invention;

FIG. 8 is a front view of a lift link in a lift mechanism according to the present invention;

fig. 9 is a left side view of a lifting connection in a height adjustment mechanism according to the present invention.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a device for practicing the invention. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the top-to-bottom dimension, "width" corresponds to the left-to-right dimension, and "depth" corresponds to the front-to-back dimension. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms (e.g., "connected" and "attached") referring to an attachment, coupling, etc., refer to a relationship wherein these structures are directly or indirectly secured or attached to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

Referring to fig. 1, a mower 2 includes:

a housing 21; and

a front wheel 22 and a rear wheel 23 supported at the front and rear ends of the housing 21,

wherein, a height adjusting mechanism for adjusting the lift-off height of the whole machine is arranged in the shell 21.

Referring to fig. 1 to 7, the height adjustment mechanism includes:

a complete machine handle 24; and

an adjusting component 25 in transmission connection with the whole machine handle 24,

wherein, be equipped with the height-adjusting button 241 on the complete machine handle 24, adjusting part 25 includes:

a lifting connecting piece in transmission connection with the height adjusting button 241;

a front and rear elevation bar 253 slidably connected to the elevation link; and

a front wheel mounting shaft 251 and a rear wheel mounting shaft 252 rotatably connected to the front and rear ends of the front and rear lift levers 253, respectively,

wherein, front wheel installation axle 251 and rear wheel installation axle 252 are two crank structures, and the both ends of front wheel installation axle 251 all rotate and are connected with front wheel 22, and the both ends of rear wheel installation axle 252 all rotate and are connected with rear wheel 23. In a preferred embodiment, the whole machine handle 24 is integrally formed at the middle and rear section of the housing 21 and protrudes upward, and the height adjusting mechanism is arranged below the whole machine handle 24 and covered by the housing 21.

Referring to fig. 4, 8 and 9, the lifting connector comprises a transmission rod 254 and a connecting piece 255 sequentially arranged from top to bottom, wherein the transmission rod 254 comprises a top extending section 2541, a middle extending section 2542 and a bottom extending section 2543 which are integrally combined from top to bottom, and the connecting piece 255 is fixedly connected with the bottom extending section 2543.

The width dimension of the connecting piece 255 is 3 to 5 times the width dimension of the transmission rod 254. In the preferred embodiment the width dimension of the tab 255 is 3.2 times the width dimension of the drive rod 254.

Further, the connecting piece 255 is provided with a connecting slot 2553, the upper edge of the connecting slot 2553 is provided with at least two locking slots 2554 communicated with the connecting slot 2553, the surface of the front and rear lifting rods 253 is fixedly connected with a sliding end 2533 protruding outwards horizontally, and the sliding end 2533 penetrates into the connecting slot 2553 and is in sliding connection with the connecting piece 255, so that the sliding end 2533 is selectively scratched into one of the locking slots 2554 and is locked by the locking slot 2554 in the sliding process along the connecting slot 2553. In a preferred embodiment, the locking through-grooves 2554 are arranged along the extending direction of the connecting through-grooves 2553.

Further, the connection through groove 2553 is convex upward, and the locking through groove 2554 extends vertically upward. In a preferred embodiment, the locking through grooves 2554 are arranged 6 at equal intervals in the extending direction of the connecting through groove 2553, and the locking through grooves 2554 at the head and tail positions are located at the front and rear ends of the connecting through groove 2553, respectively.

Further, the top extension 2541, the middle extension 2542, and the bottom extension 2543 are all located on the same vertical plane.

Referring again to fig. 8, the connecting piece 255 is provided with an upper positioning groove 2551 and a lower positioning groove 2552, and a connecting line between the upper positioning groove 2551 and the lower positioning groove 2552 extends in the vertical direction.

Referring to fig. 4, 5, 6 and 7, a positioning member 258 is fixedly connected to the front and rear lifting rods 253, an upper positioning end 2581 and a lower positioning end 2582 protruding outwards horizontally are fixedly connected to the surface of the positioning member 258, a connecting line between the upper positioning end 2581 and the lower positioning end 2582 extends along the vertical direction, and an upper positioning groove 2551 and a lower positioning groove 2552 are respectively connected with the upper positioning end 2581 and the lower positioning end 2582 in a sliding fit manner.

Further, the upper positioning groove 2551 and the lower positioning groove 2552 are elongated and extend in the vertical direction.

Further, the top extending section 2541 is parallel to the bottom extending section 2543 and spaced apart from each other, and the middle extending section 2542 is obliquely connected between the top extending section 2541 and the bottom extending section 2543, so that the upper and lower ends of the middle extending section 2542 are fixedly connected with the top extending section 2541 and the bottom extending section 2543 respectively.

Further, the top and bottom extension segments 2541 and 2543 each extend in a vertical direction, an upper end of the middle extension segment 2542 is integrally connected with a lower end of the top extension segment 2541, and a lower end of the middle extension segment 2542 is integrally connected with an upper end of the bottom extension segment 2543, such that the middle extension segment 2542 forms an angle ω with the top extension segment 2541 or the bottom extension segment 2543.

Further, the included angle omega is 101-135 degrees. In one embodiment, the included angle ω is 101 °; in another embodiment, the included angle ω has a magnitude of 135 °; in a preferred embodiment, the included angle ω is 126 °.

Referring to fig. 3 and 4, the front wheel mounting shaft 251 is integrally connected at both ends thereof with a first front crank 2513 and a second front crank 2514, the first front crank 2511 and a second front crank 2512 are fixedly connected at the ends of the first front crank 2513 and the second front crank 2514, the rear wheel mounting shaft 252 is integrally connected at both ends thereof with a first rear crank 2523 and a second rear crank 2524, the first rear crank 2523 and the second rear crank 2524 are fixedly connected at the ends thereof with a first rear rotary shaft 2521 and a second rear rotary shaft 2522, the front and rear lifting rod 253 is rotatably connected between the first front crank 2513 and the first rear crank 2523 or between the second front crank 2514 and the second rear crank 2524, and the front wheel mounting shaft 2511, the first front rotary shaft 2511, the second front rotary shaft 2512, the rear wheel mounting shaft 252, the first rear rotary shaft 2521 and the second rear rotary shaft 2522 are parallel to each other. In the preferred embodiment, the front wheel mounting axle 251 is always on the same horizontal plane as the rear wheel mounting axle 252.

Further, two ends of the front and rear lifting rods 253 are integrally formed with a front extension section 2531 and a rear extension section 2532 extending obliquely downwards, the included angles between the front extension section 2531 and the rear extension section 2532 and the front and rear lifting rods 253 are an included angle α and an included angle β, the tail ends of the front extension section 2531 and the tail ends of the rear extension section 2532 are respectively and rotatably connected with a front rotating connecting rod 256 and a rear rotating connecting rod 257, and the front rotating connecting rod 256 and the rear rotating connecting rod 257 are respectively and fixedly connected with a first front crank 2513 and a first rear crank 2523 or a second front crank 2514 and a second rear crank 2524. In one embodiment, the included angle α is equal to the included angle β, and the included angle α or the included angle β is 115 ° to 135 °.

Referring to fig. 6, the bottom of the positioning member 258 is integrally formed with a bottom support plate 2584 extending horizontally outwardly, and side support plates 2583 integrally formed with the positioning member 258 are provided at sides of the bottom support plate 2584, the side support plates 2583 being higher than the bottom support plate 2584.

Working principle:

when the whole machine is lifted, the lifting button 241 is pressed while the lifting handle 24 of the whole machine is held, the lifting button 241 drives the transmission rod 254 to move upwards, so that the sliding end 2533 slides out of the locking through groove 2554 and falls back into the connecting through groove 2553, and at the moment, the connecting rod is driven to move back and forth by pressing the machine body, so that the height of the whole machine is adjusted.

The number of equipment and the scale of processing described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be readily apparent to those skilled in the art.

Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims

1. A height adjustment mechanism, comprising: the whole machine lifting handle (24) is arranged on the shell (21) of the mower (2), the mower (2) is provided with a front wheel and a rear wheel, and the distance between the whole machine lifting handle (24) and the rear wheel is smaller than the distance between the whole machine lifting handle (24) and the front wheel; and an adjusting component (25) in transmission connection with the whole machine handle (24), wherein the whole machine handle (24) is provided with a height adjusting button (241), and the adjusting component (25) comprises: the lifting connecting piece is in transmission connection with the height adjusting button (241); a front and rear lift bar (253) slidably coupled to the lift link; the front wheel mounting shaft (251) and the rear wheel mounting shaft (252) are respectively and rotatably connected with the front end and the rear end of the front lifting rod (253), the front wheel mounting shaft (251) and the rear wheel mounting shaft (252) are of double-crank structures, the front wheel (22) is rotatably connected with the two ends of the front wheel mounting shaft (251), and the rear wheel (23) is rotatably connected with the two ends of the rear wheel mounting shaft (252); the front wheel mounting shaft (251) is integrally connected with a first front crank (2513) and a second front crank (2514) at two ends respectively, the tail ends of the first front crank (2513) and the second front crank (2514) are fixedly connected with a first front rotating shaft (2511) and a second front rotating shaft (2512) respectively, the two ends of the rear wheel mounting shaft (252) are integrally connected with a first rear crank (2523) and a second rear crank (2524) respectively, the tail ends of the first rear crank (2523) and the second rear crank (2524) are fixedly connected with a first rear rotating shaft (2521) and a second rear rotating shaft (2522) respectively, and the front lifting rod and the rear lifting rod (253) are rotatably connected between the first front crank (2513) and the first rear crank (2523) or between the second front crank (2514) and the second rear crank (2524).

2. The height-adjusting mechanism according to claim 1, wherein the lifting connection piece comprises a transmission rod (254) and a connection piece (255) which are sequentially arranged from top to bottom, wherein the transmission rod (254) comprises a top extension section (2541), a middle extension section (2542) and a bottom extension section (2543) which are integrally combined from top to bottom, and the connection piece (255) is fixedly connected with the bottom extension section (2543).

3. The height adjusting mechanism according to claim 2, wherein the connecting piece (255) is provided with a connecting through groove (2553), the upper edge of the connecting through groove (2553) is provided with at least two locking through grooves (2554) communicated with the connecting through groove, the surface of the front lifting rod (253) and the surface of the rear lifting rod (253) are fixedly connected with sliding ends (2533) protruding outwards horizontally, the sliding ends (2533) penetrate the connecting through groove (2553) and then are in sliding connection with the connecting piece (255), and accordingly the sliding ends (2533) are selectively scratched into one of the locking through grooves (2554) and are locked by the locking through grooves (2554) in the sliding process along the connecting through groove (2553).

4. A height adjustment mechanism according to claim 3, characterised in that the connecting channel (2553) is convex upwards rising and the locking channel (2554) extends vertically upwards.

5. A height-adjusting mechanism as claimed in claim 3, wherein the top extension (2541), the middle extension (2542) and the bottom extension (2543) are all located on the same vertical plane, the connecting piece (255) is provided with an upper positioning groove (2551) and a lower positioning groove (2552), and a connecting line between the upper positioning groove (2551) and the lower positioning groove (2552) extends along the vertical direction.

6. The height adjusting mechanism according to claim 5, wherein a positioning member (258) is fixedly connected to the front and rear lifting rods (253), an upper positioning end (2581) and a lower positioning end (2582) which are horizontally and outwards protruded are fixedly connected to the surface of the positioning member (258), a connecting line between the upper positioning end (2581) and the lower positioning end (2582) extends along the vertical direction, and an upper positioning groove (2551) and a lower positioning groove (2552) are respectively in sliding fit with the upper positioning end (2581) and the lower positioning end (2582).

7. The height adjustment mechanism of claim 6, wherein the upper and lower positioning slots (2551, 2552) are elongated and extend in a vertical direction.

8. The height-adjustment mechanism of claim 5, wherein the top extension (2541) is parallel to and spaced apart from the bottom extension (2543), and the middle extension (2542) is connected between the top extension (2541) and the bottom extension (2543) in an inclined manner, such that the upper and lower ends of the middle extension (2542) are fixedly connected with the top extension (2541) and the bottom extension (2543), respectively.

9. The height adjustment mechanism of claim 8, wherein the top extension (2541) and the bottom extension (2543) each extend in a vertical direction, an upper end of the middle extension (2542) is integrally connected with a lower end of the top extension (2541), and a lower end of the middle extension (2542) is integrally connected with an upper end of the bottom extension (2543) such that the middle extension (2542) forms an angle ω with the top extension (2541) or the bottom extension (2543).

10. The elevating mechanism as set forth in claim 1, wherein the front wheel mounting axle (251), the first front pivot (2511), the second front pivot (2512), the rear wheel mounting axle (252), the first rear pivot (2521) and the second rear pivot (2522) are all parallel to each other.

11. The height adjusting mechanism according to claim 10, wherein a front extension section (2531) and a rear extension section (2532) extending obliquely downwards are integrally formed at two ends of the front and rear lifting rods (253), included angles between the front extension section (2531) and the rear extension section (2532) and the front and rear lifting rods (253) are included angles alpha and included angles beta, the tail ends of the front extension section (2531) and the tail ends of the rear extension section (2532) are respectively connected with a front rotating connecting rod (256) and a rear rotating connecting rod (257) in a rotating manner, and the front rotating connecting rod (256) and the rear rotating connecting rod (257) are respectively fixedly connected with a first front crank (2513) and a first rear crank (2523) or a second front crank (2514) and a second rear crank (2524).