CN217217476U - Self-limiting wheel train and lawn mower - Google Patents
Self-limiting wheel train and lawn mower Download PDFInfo
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- CN217217476U CN217217476U CN202123299296.6U CN202123299296U CN217217476U CN 217217476 U CN217217476 U CN 217217476U CN 202123299296 U CN202123299296 U CN 202123299296U CN 217217476 U CN217217476 U CN 217217476U
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- rear wheel
- front wheel
- gear shifting
- mounting plate
- wheel mounting
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Abstract
The invention provides a self-limiting wheel train and a lawn mower, wherein two ends of the front part of a frame are respectively provided with a front wheel mounting plate, a front wheel connecting shaft is connected between the two front wheel mounting plates, and each front wheel mounting plate is provided with a front wheel; the rear wheel mounting plates are respectively mounted at two ends of the rear part of the rack, a rear wheel connecting shaft is connected between the two rear wheel mounting plates, each rear wheel mounting plate is provided with a rear wheel, and the gear shifting rod is mounted on one of the rear wheel mounting plates; the connecting rod part comprises a gear shifting connecting rod, the front end of the gear shifting connecting rod is connected with the front wheel mounting plate, and the rear end of the gear shifting connecting rod is connected with the rear wheel mounting plate; the gear shifting rod is positioned in the last gear groove of the gear shifting plate, and the shell limits the front wheel connecting shaft upwards; the gear shifting rod is positioned in the foremost gear groove of the gear shifting plate, and the rear wheel connecting shaft forms upward limit to the gear shifting connecting rod. The invention can realize the self-limiting of the lawn mower at high and low gears, thereby enhancing the stability of the lawn mower during the gear setting.
Description
Technical Field
The invention belongs to the technical field of garden tools, and particularly relates to a self-limiting wheel train and a lawn mower.
Background
The lawn mower is generally used in the daily home garden and public green space maintenance abroad, the technology is mature, and the functions and the configuration are complete. Conventional functional configurations are no longer satisfactory, and particular attention is paid to details or local features of lawn mowers, especially for professional users.
The altitude mixture control structure of lawn mower in the existing market, partly do not prevent to cross the protection architecture of shelves, partly carry out machinery spacingly through plus spare part, all lack to utilize the structure of machine itself to carry out spacing product, cause to use to have certain inconvenience.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a from spacing wheel train and lawn mower, can realize the lawn mower at high-low level from spacing to reinforcing the stability of lawn mower when the gear sets up.
The invention is realized by the following steps: a self-limiting wheel train comprises a front wheel part, a rear wheel part and a connecting rod part;
the front wheel part comprises a front wheel, a front wheel connecting shaft and a front wheel mounting plate; the front wheel mounting plates are respectively mounted at two ends of the front wheel connecting shaft, and each front wheel mounting plate is provided with one front wheel;
the rear wheel part comprises a rear wheel, a rear wheel connecting shaft, a rear wheel mounting plate and a gear shifting rod; the rear wheel mounting plates are respectively mounted at two ends of the rear wheel connecting shaft, each rear wheel mounting plate is provided with one rear wheel, and the gear shifting rod is mounted on one rear wheel mounting plate;
the connecting rod part comprises a gear shifting connecting rod, the front end of the gear shifting connecting rod is connected with the front wheel mounting plate, and the rear end of the gear shifting connecting rod is connected with the rear wheel mounting plate;
the gear shifting rod is provided with a lowest gear and a second position relative to the rear wheel connecting shaft, and when the gear shifting rod is positioned at the lowest gear, the shell forms upward limit on the front wheel connecting shaft; when the gear shifting rod is located at the second position, the rear wheel connecting shaft limits the gear shifting connecting rod upwards.
Furthermore, a front wheel shaft is arranged on the front wheel mounting plate, and the front wheel is arranged on the front wheel shaft and is fixed by a front wheel gasket and a front wheel nut.
Furthermore, a rear wheel shaft is installed on the rear wheel installation plate, and the rear wheel is installed on the rear wheel shaft and fixed through a rear wheel gasket and a rear wheel nut.
Furthermore, the front end of the gear shifting connecting rod is installed on the connecting rod shaft of the corresponding front wheel mounting plate through a connecting rod nut, and the rear end of the gear shifting connecting rod is installed on the connecting rod shaft of the corresponding rear wheel mounting plate through a connecting rod nut.
Furthermore, the connecting rod part also comprises a power spring, one end of the power spring is connected with the gear shifting connecting rod, and the other end of the power spring is connected with the shell.
The invention also provides a lawn mower which comprises a machine tool part, wherein the machine tool part comprises a frame, the frame is provided with a machine shell, a front wheel part and a rear wheel part, and the lawn mower also comprises a connecting rod part,
the front wheel part comprises a front wheel, a front wheel connecting shaft and a front wheel mounting plate; the front wheel mounting plates are respectively mounted at two ends of the front part of the rack, the front wheel connecting shaft is connected between the two front wheel mounting plates, and each front wheel mounting plate is provided with one front wheel;
the rear wheel part comprises a rear wheel, a rear wheel connecting shaft, a rear wheel mounting plate and a gear shifting rod; the rear wheel mounting plates are respectively mounted at two ends of the rear part of the rack, the rear wheel connecting shaft is connected between the two rear wheel mounting plates, one rear wheel is mounted on each rear wheel mounting plate, and the gear shifting rod is mounted on one of the rear wheel mounting plates;
the connecting rod part comprises a gear shifting connecting rod, the front end of the gear shifting connecting rod is connected with the front wheel mounting plate, and the rear end of the gear shifting connecting rod is connected with the rear wheel mounting plate;
a gear shifting plate with a plurality of gear slots is arranged on the shell; the gear shifting rod is positioned in the last gear groove of the gear shifting plate, and the shell limits the front wheel connecting shaft upwards; the gear shifting rod is positioned in the foremost gear groove of the gear shifting plate, and the rear wheel connecting shaft forms upward limit on the gear shifting connecting rod.
Furthermore, the connecting rod part also comprises a power spring, one end of the power spring is connected with the gear shifting connecting rod, and the other end of the power spring is connected with the shell.
The invention has the following beneficial effects: the self-limiting wheel system in the invention is based on a central heightening system, and directly drives the rear shaft part to rotate by rotating the gear shifting rod, so as to realize the height position change of the rear wheel; the front wheel shaft and the rear wheel shaft are connected through a gear-shifting connecting rod, force is transmitted to the front wheel part to rotate according to the mechanical principle of a four-bar mechanism, the front wheel part rotates to drive the front wheel to realize high-low position change, and the front wheel and the rear wheel are in height linkage change to realize high-low position change of the blade of the lawn mower.
Drawings
FIG. 1 is a schematic view of a lawn mower according to the present invention;
FIG. 2 is a schematic structural diagram of a self-limiting gear train according to the present invention;
FIG. 3 is a schematic structural view of the shift lever of the present invention in the lowest gear position;
FIG. 4 is a schematic diagram illustrating a limit position of the shift lever in the lowest gear position according to the present invention;
FIG. 5 is a schematic view of the shift lever of the present invention in a second position;
fig. 6 is a schematic limit diagram of the shift lever in the second position according to the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 6, the present invention provides a lawn mower, which includes a machine tool part 100, wherein the machine tool part 100 includes a frame, a housing 102, a front wheel part 200, and a rear wheel part 300 are mounted on the frame, and the lawn mower further includes a connecting rod part 400.
The front wheel portion 200 includes a front wheel 203, a front wheel connecting shaft 201, and a front wheel mounting plate 206. A front wheel mounting plate 206 is mounted on each of the left and right ends of the front portion of the frame, and the front wheel mounting plates 206 are capable of rotating up and down about mounting pivots. Each front wheel mounting plate 206 is rotatably provided with a front wheel 203, and the two front wheel mounting plates 206 are connected through a front wheel connecting shaft 201. The front wheel mounting plate 206 is mounted with a front wheel shaft 207, and the front wheel 203 is mounted on the front wheel shaft 207 and fixed with a front wheel spacer 204 and a front wheel nut 205.
Likewise, the rear wheel portion 300 includes a rear wheel 303, a rear wheel connecting shaft 302, a rear wheel mounting plate 306, and a shift lever 301. The left end and the right end of the rear part of the machine frame are respectively provided with a rear wheel mounting plate 306, and the rear wheel mounting plates 306 can rotate up and down around the mounting pivot. Each rear wheel mounting plate 306 is rotatably provided with a rear wheel 303, and the two rear wheel mounting plates 306 are connected through a rear wheel connecting shaft 302. The rear wheel mounting plate 306 is mounted with a rear wheel axle 308, and the rear wheel 303 is mounted on the rear wheel axle 308 and fixed with a rear wheel shim 304 and a rear wheel nut 305. The shift lever 301 is mounted on one of the rear wheel mounting plates 306, and is rotatable to the left and right.
The link portion 400 includes a shift link 402, the shift link 402 having a front end coupled to the front wheel mounting plate 206 and a rear end coupled to the rear wheel mounting plate 306. The shift link 402 has a front end mounted to the link shaft of the corresponding front wheel mount plate 206 via a link nut 401 and a rear end mounted to the link shaft of the corresponding rear wheel mount plate 306 via a link nut 401. The movement of the rear wheel connecting shaft 302 is transmitted to the front wheel connecting shaft 201 through the gearshift link 402. The link mechanism is configured such that the connection position between the front wheel 203 and the front wheel mounting plate 206, the connection position between the shift link 402 and the front wheel mounting plate 206, and the connection position between the front wheel mounting plate 206 and the frame are different from each other, and the connection position between the rear wheel 303 and the rear wheel mounting plate 306, the connection position between the shift link 402 and the rear wheel mounting plate 306, and the connection position between the rear wheel mounting plate 306 and the frame are different from each other.
A gear shifting plate 101 with a plurality of gear slots is arranged on the machine shell 102; the shift plate 101 is located at the shift lever 301. The last gear groove corresponds to the lowest gear, and the foremost gear groove corresponds to the highest gear.
As shown in fig. 3 and 4, in the process of adjusting the gear shift lever 301 to the last gear slot of the gear shift plate 101 (i.e. to the lowest gear), the gear shift lever 301, in the process of adjusting to the lowest gear, drives the rear wheel mounting plate 306 to rotate, and drives the front wheel mounting plate 206 to rotate backwards around the pivot through the gear shift link 402, at this time, the front wheel 203 retracts inwards the rack, and at this time, the chassis forms an upward limit 104 for the front wheel connecting shaft 201. The lower edge of the housing 102 limits the possibility of further rotation, so that the stability of the front wheel 203 is ensured, and the gear shifting connecting rod 402 and the rear wheel connecting shaft 302 cannot move any more due to the limitation of the gear shifting rod 301 and the front wheel connecting shaft 201, namely, the limiting function is realized.
Similarly, as shown in fig. 5 and 6, during the process of adjusting the shift lever 301 to the foremost shift slot of the shift board 101 (i.e. to the highest shift), the rear wheel 303 and the front wheel 203 are both raised, and at this time, the shift link 402 abuts against the rear wheel connecting shaft 302, so that the rear wheel connecting shaft 302 forms an upward limit 106 for the shift link 402, and at the same time, the shift link 402 is limited from freely swinging at this position under the action of the gravity of the whole machine.
In order to facilitate the shifting of the shift position, the link portion 400 further includes a power spring 403, one end of the power spring 403 is connected to the shift link 402, and the other end is connected to the housing. The assist spring 403 is elongated when shifting from the high gear to the low gear, thereby providing assist when shifting from the low gear to the high gear.
Can prevent effectively from limit structure that the customer from adjusting the range of mowing the machine outside setting for the scope, the life of effectual protection machine has improved user and has used experience, and guarantees the security of user operation.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A self-limiting wheel train is characterized by comprising a front wheel part (200), a rear wheel part (300) and a connecting rod part (400);
the front wheel part (200) comprises a front wheel (203), a front wheel connecting shaft (201) and a front wheel mounting plate (206); the two ends of the front wheel mounting plate (206) on the front wheel connecting shaft (201) are respectively provided with one front wheel (203), and each front wheel mounting plate (206) is provided with one front wheel;
the rear wheel part (300) comprises a rear wheel (303), a rear wheel connecting shaft (302), a rear wheel mounting plate (306) and a gear shifting rod (301); the rear wheel mounting plates (306) are respectively mounted at two ends of the rear wheel connecting shaft (302), each rear wheel mounting plate (306) is provided with one rear wheel (303), and the gear shifting rod (301) is mounted on one rear wheel mounting plate (306);
the connecting rod part (400) comprises a gear shifting connecting rod (402), the front end of the gear shifting connecting rod (402) is connected with the front wheel mounting plate (206), and the rear end of the gear shifting connecting rod is connected with the rear wheel mounting plate (306);
the gear shifting rod (301) has a lowest gear (103) and a second position (105) relative to the rear wheel connecting shaft (302), and when the gear shifting rod (301) is located at the lowest gear (103), the shell forms an upward limit on the front wheel connecting shaft (201); when the gear shifting rod (301) is located at the second position (105), the rear wheel connecting shaft (302) limits the gear shifting connecting rod (402) upwards.
2. A self-limiting wheel train as claimed in claim 1, wherein the front wheel mounting plate (206) has a front wheel axle (207) mounted thereon, and the front wheel (203) is mounted on the front wheel axle (207) and secured thereto by a front wheel washer (204) and a front wheel nut (205).
3. A self-limiting wheel train as claimed in claim 1 wherein a rear wheel axle (308) is mounted on the rear wheel mounting plate (306), and the rear wheel (303) is mounted on the rear wheel axle (308) and secured by a rear wheel shim (304) and a rear wheel nut (305).
4. A self-limiting wheel train as claimed in claim 1, wherein the shift link (402) is mounted at its front end to the link shaft of the corresponding front wheel mounting plate (206) by means of a link nut (401) and at its rear end to the link shaft of the corresponding rear wheel mounting plate (306) by means of a link nut (401).
5. A self-limiting wheel train according to any one of claims 1 to 4, wherein the link portion (400) further comprises a power spring (403), one end of the power spring (403) is connected to the gear shifting link (402), and the other end is connected to the housing.
6. A lawn mower comprises a machine tool part (100), wherein the machine tool part (100) comprises a frame, a machine shell (102), a front wheel part (200) and a rear wheel part (300) are arranged on the frame, and the lawn mower is characterized by further comprising a connecting rod part (400),
the front wheel part (200) comprises a front wheel (203), a front wheel connecting shaft (201) and a front wheel mounting plate (206); the two ends of the front wheel mounting plates (206) at the front part of the frame are respectively provided with one front wheel mounting plate, the front wheel connecting shaft (201) is connected between the two front wheel mounting plates (206), and each front wheel mounting plate (206) is provided with one front wheel (203);
the rear wheel part (300) comprises a rear wheel (303), a rear wheel connecting shaft (302), a rear wheel mounting plate (306) and a gear shifting rod (301); the rear wheel mounting plates (306) are respectively mounted at two ends of the rear part of the rack, the rear wheel connecting shaft (302) is connected between the two rear wheel mounting plates (306), each rear wheel mounting plate (306) is provided with one rear wheel (303), and the gear shifting rod (301) is mounted on one rear wheel mounting plate (306);
the connecting rod part (400) comprises a gear shifting connecting rod (402), the front end of the gear shifting connecting rod (402) is connected with the front wheel mounting plate (206), and the rear end of the gear shifting connecting rod (402) is connected with the rear wheel mounting plate (306);
a gear shifting plate (101) with a plurality of gear slots is arranged on the shell (102); the gear shifting rod (301) is positioned in the last gear groove of the gear shifting plate (101), and the shell limits the front wheel connecting shaft (201) upwards; the gear shifting rod (301) is located in the foremost gear groove of the gear shifting plate (101), and the rear wheel connecting shaft (302) limits the gear shifting connecting rod (402) upwards.
7. A lawn mower as claimed in claim 6, wherein said link portion (400) further comprises a power spring (403), said power spring (403) having one end connected to said shift link (402) and the other end connected to said housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123299296.6U CN217217476U (en) | 2021-12-27 | 2021-12-27 | Self-limiting wheel train and lawn mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123299296.6U CN217217476U (en) | 2021-12-27 | 2021-12-27 | Self-limiting wheel train and lawn mower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217217476U true CN217217476U (en) | 2022-08-19 |
Family
ID=82824940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123299296.6U Active CN217217476U (en) | 2021-12-27 | 2021-12-27 | Self-limiting wheel train and lawn mower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217217476U (en) |
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2021
- 2021-12-27 CN CN202123299296.6U patent/CN217217476U/en active Active
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