Weeding machine wheel height adjusting structure

Abstract

The utility model relates to a weeding machine wheel height adjusting structure which comprises a shell, a wheel is rotationally arranged at one end of the shell, a grass brushing disc is rotationally arranged at the other end of the shell, an adjusting assembly is arranged between the wheel and the shell and comprises a gear plate and a wheel seat, the gear plate is installed at the end, close to the wheel, of the shell, and the wheel seat is installed on the gear plate. The gear plate is provided with an arc-shaped step and a plurality of ribs arranged along the arc-shaped step at intervals, the wheel seat is provided with a first rotating shaft used for being in running fit with the shell, a second rotating shaft used for being in running fit with the wheel and a pulling plate, and the pulling plate is in sliding connection with the wheel seat through an elastic component. The bottom of the pulling plate penetrates through the top of the wheel seat to be in positioning fit with the rib, the first rotating shaft and the second rotating shaft are located at the two side ends of the wheel seat respectively, and the second rotating shaft is located obliquely above the first rotating shaft. The weeding machine wheel height adjusting structure not only meets the requirement of a user for cleaning gaps with different depths, but also saves the cleaning time and improves the cleaning efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of weed cutters, in particular to a height adjustment structure of weed cutter wheels. Background Art

[0002] In the prior art, the wheels of the weeder are directly connected to the housing through a rotating shaft, and the weeder cannot adjust the height of the wheels to meet the requirement of the brushing disc to clean weeds in gaps of different depths, resulting in a long cleaning time and poor cleaning effect. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a wheel height adjustment structure for a lawnmower. The wheel adjustment assembly not only meets the user's needs for cleaning gaps of different depths, but also saves cleaning time and improves cleaning efficiency.

[0004] The utility model solves the technical problem by adopting the following technical solution: a lawn mower wheel height adjustment structure, comprising a shell, one end of which is rotatably provided with a wheel, the other end of which is rotatably provided with a grass brushing disc, an adjustment component is arranged between the wheel and the shell, and the adjustment component comprises a gear plate and a wheel seat.

[0005] The shift plate is installed at one end of the housing close to the wheel, and the shift plate is provided with an arc-shaped step and a plurality of ribs arranged at intervals along the arc-shaped step.

[0006] The wheel seat is provided with a first rotating shaft for rotating with the shell, a second rotating shaft for rotating with the wheel, and a pull plate. The pull plate is slidably connected to the wheel seat through an elastic component. The bottom of the pull plate passes through the top of the wheel seat and is positioned and matched with the ribs. The first rotating shaft and the second rotating shaft are respectively located at two side ends of the wheel seat, and the centers of the second rotating shaft and the first rotating shaft are not on the same axis.

[0007] In one of the embodiments, the pull plate of the lawn mower wheel height adjustment structure includes a toggle plate and a positioning plate, the toggle plate is symmetrically provided with toggle grooves for toggling, the positioning plate is provided with positioning grooves for accommodating ribs, the positioning plate is symmetrically provided with sliding grooves, the upper half of the wheel seat is provided with a notch for positioning with the toggle plate and two limit blocks for sliding with the sliding grooves of the positioning plate, and the positions of the two limit blocks correspond to each other.

[0008] In one embodiment, the elastic component of the lawn mower wheel height adjustment structure includes a pin and a torsion spring. The pin is installed on the wheel seat and contacts the pull plate. The torsion spring is sleeved on the pin. One end of the torsion spring abuts against the pull plate, and the other end of the torsion spring abuts against the wheel seat.

[0009] In one embodiment, the housing of the height adjustment structure of the weeding machine wheel includes an upper housing, a lower housing and a cover plate. The upper housing is in covering cooperation with the lower housing, and the cover plate is in covering cooperation with the upper housing. First connection holes and second connection holes are symmetrically arranged at both ends of the upper housing and the lower housing. The first connection hole is rotationally connected to the brush grass plate, and the second connection hole is rotationally connected to the first rotating shaft through a first gasket.

[0010] In one embodiment, the wheel of the height adjustment structure of the weeding machine wheel includes a hub, a decorative strip and a wheel cover. The decorative strip is in covering cooperation with the inner ring of the hub, and the wheel cover is in covering cooperation with the hub. The second rotating shaft is rotationally connected to the axis of the hub through a second gasket.

[0011] The beneficial effects of this application are as follows:

[0012] This application provides a height adjustment structure for a weeding machine wheel. The wheel adjustment assembly positions by pulling up the pull plate to rotate the wheel seat to select ribs at different heights on the gear plate, adjusts the rotation angles of the second rotating shaft and the wheel, realizes the height adjustment of the wheel, and thus adjusts the height of the brush grass plate at the other end of the housing. The wheel adjustment assembly realizes the height adjustment of the brush grass plate through the wheel, meets the user's need for cleaning gaps of different depths, saves cleaning time, and improves cleaning efficiency. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of a perspective view of the height adjustment structure of the weeding machine wheel according to an embodiment of this application;

[0014] Figure 2 It is a schematic diagram of another perspective view of the height adjustment structure of the weeding machine wheel according to an embodiment of this application;

[0015] Figure 3 It is a schematic diagram of the housing and the adjustment assembly of the height adjustment structure of the weeding machine wheel according to an embodiment of this application;

[0016] Figure 4 It is a schematic diagram of the gear plate of the height adjustment structure of the weeding machine wheel according to an embodiment of this application;

[0017] Figure 5 It is a schematic diagram of the wheel seat and the pull plate of the height adjustment structure of the weeding machine wheel according to an embodiment of this application;

[0018] Figure 6 It is a schematic diagram of a perspective view of the wheel seat of the height adjustment structure of the weeding machine wheel according to an embodiment of this application;

[0019] Figure 7 It is a schematic diagram of another perspective view of the wheel seat of the height adjustment structure of the weeding machine wheel according to an embodiment of this application;

[0020] Figure 8 A schematic diagram of a pull plate of a lawn mower wheel height adjustment structure according to an embodiment of the present application from one perspective;

[0021] Figure 9 A schematic diagram of a pull plate of a lawn mower wheel height adjustment structure according to an embodiment of the present application from another perspective;

[0022] in:

[0023] 1. Shell; 2. Wheel; 3. Grass brush disc; 4. Adjustment assembly; 41. Shift plate; 42. Wheel seat; 43. First rotating shaft; 44. Second rotating shaft; 45. Pull plate; 46. Elastic component; 411. Arc step; 412. Rib; 451. Toggle plate; 452. Positioning plate; 001. Toggle slot; 002. Positioning slot; 003. Sliding slot; 421. Notch; 422. Limit block; 461. Pin; 11. Upper shell; 12. Lower shell; 13. Cover plate; 14. First gasket; 21. Wheel hub; 22. Decorative strip; 23. Wheel cover. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] like Figures 1 - 3 As shown, an embodiment of the present application provides a lawn mower wheel height adjustment structure, including a shell 1, a wheel 2 is rotatably provided at one end of the shell 1, a grass brush disc 3 is rotatably provided at the other end of the shell 1, an adjustment component 4 is provided between the wheel 2 and the shell 1, and the adjustment component 4 includes a gear plate 41 and a wheel seat 42.

[0026] like Figure 4 As shown, the shift plate 41 is installed at one end of the housing 1 close to the wheel 2 , and the shift plate 41 is provided with an arc-shaped step 411 and a plurality of ribs 412 spaced apart along the arc-shaped step 411 .

[0027] like Figure 5 As shown, the wheel seat 42 is provided with a first rotating shaft 43 for rotating with the shell 1, a second rotating shaft 44 for rotating with the wheel 2, and a pull plate 45. The pull plate 45 is slidably connected to the wheel seat 42 through an elastic component 46. The bottom of the pull plate 45 passes through the top of the wheel seat 42 and is positioned and matched with the rib 412. The first rotating shaft 43 and the second rotating shaft 44 are respectively located at two side ends of the wheel seat 42, and the centers of the second rotating shaft 44 and the first rotating shaft 43 are not on the same axis.

[0028] Specifically, five ribs 412 are arranged at intervals along the arc-shaped step 411 of the shift plate 41, so that the five ribs 412 are at different heights. The first rotating shaft 43 is installed on one side of the wheel seat 42 and is rotatably connected to one end of the housing 1. The second rotating shaft 44 is installed on the other side of the wheel seat 42 and is not on the same axis as the center of the second rotating shaft 44. The second rotating shaft 44 is rotatably connected to the axis of the wheel 2. When the wheel seat 42 drives the first rotating shaft 43 and the second rotating shaft 44 to rotate, the first rotating shaft 43 rotates in the housing 1, and the second rotating shaft 44 drives the axis of the wheel 2 to rotate, thereby driving the wheel 2 to adjust its height. The pull plate 45 is slidably connected to the wheel seat 42 through the elastic component 46. The bottom of the pull plate 45 passes through the wheel seat 42 and is positioned with the rib 412 of the shift plate 41. The top of the wheel seat 42 is provided with a notch 421. The upper part of the pull plate 45 is slidably positioned with the notch 421 of the wheel seat 42. Among them, a motor and a gear box are also provided in the shell 1. One end of the motor is connected to the control handle in the prior art, and the driving end of the motor is connected to the gear box and the grass brush disc 3. The control handle controls the motor to drive the gear box and the grass brush disc 3 to rotate for weed cleaning, and the gear box controls the speed of the motor.

[0029] Pull open the pull plate 45, rotate the wheel seat 42 according to the height requirement, select the rib 412 of the corresponding height, and then release the pull plate 45 to position the pull plate 45 and the rib 412. While rotating the wheel seat 42, the first rotating shaft 43 rotates in the shell 1. Since the second rotating shaft 44 is arranged obliquely above the first rotating shaft 43, the second rotating shaft 44 drives the wheel 2 to rotate at an angle, thereby realizing the height adjustment of the wheel 2, thereby adjusting the height of the grass brushing disc 3 at the other end of the shell 1.

[0030] In the above structure, by pulling up the pull plate 45 and rotating the wheel seat 42, the ribs 412 of different heights on the shift plate 41 are selected for positioning, and the rotation angle of the second rotating shaft 44 and the wheel 2 is adjusted, so that the height of the wheel 2 is adjusted, thereby adjusting the height of the brushing disc 3 at the other end of the housing 1. The height adjustment structure of the lawn mower wheel not only meets the user's needs for cleaning gaps of different depths, but also saves cleaning time and improves cleaning efficiency.

[0031] like Figures 6 - 9 As shown, in one embodiment, the pull plate 45 of the lawn mower wheel height adjustment structure includes a toggle plate 451 and a positioning plate 452, the toggle plate 451 is symmetrically provided with toggle grooves 001 for toggling, the positioning plate 452 is provided with positioning grooves 002 for accommodating the rib 412, the positioning plate 452 is symmetrically provided with sliding grooves 003, the upper half of the wheel seat 42 is provided with a notch 421 for positioning with the toggle plate 451 and two limit blocks 422 for sliding with the sliding grooves 003 of the positioning plate 452, and the two limit blocks 422 are positioned correspondingly.

[0032] Specifically, the toggle plate 451 is slidably and positioningly engaged with the notch 421 of the wheel seat 42. The positioning plate 452 passes through the wheel seat 42. The limiting blocks 422 symmetrically arranged inside the wheel seat 42 are slidably engaged with the sliding groove 003 of the positioning plate 452, and the symmetrically arranged limiting blocks 422 limit the positioning plate 452. When the toggle plate 451 and the positioning plate 452 are pulled apart, the sliding groove 003 of the positioning plate 452 moves upward along the limiting block 422 of the wheel seat 42. After selecting the rib 412 at the corresponding height, the toggle plate 451 and the positioning plate 452 are released. Under the action of the spring force, the toggle plate 451 and the positioning plate 452 move toward the wheel seat 42, so that the rib 412 extends into the positioning groove 002 of the positioning plate 452 and is positioningly engaged with the positioning groove 002. The two side ends of the positioning groove 002 are located in the gap between the adjacent ribs 412. At the same time, the toggle plate 451 abuts against the notch 421 of the wheel seat 42 for positioning.

[0033] This setting facilitates the sliding and positioning cooperation between the pull plate 45 and the wheel seat 42.

[0034] As Figure 5 shown, in one embodiment, the elastic member 46 of the height adjustment structure of the weeding machine wheel includes a pin 461 and a torsion spring. The pin 461 is installed on the wheel seat 42 and contacts the pull plate 45. The torsion spring is sleeved on the pin 461. One end of the torsion spring abuts against the pull plate 45, and the other end of the torsion spring abuts against the wheel seat 42.

[0035] Specifically, when the pull plate 45 is pulled up, after rotating the wheel seat 42 to select the rib 412 at the corresponding height, the pull plate 45 is released. Under the action of the torsion spring force, the pull plate 45 returns to the initial position, and the positioning plate 452 of the pull plate 45 is firmly positioned together with the rib 412. This setting facilitates the reset of the pull plate 45 and effectively positions the pull plate 45 and the rib 412 together, which can avoid the loosening of the pull plate 45 and the rib 412 during use.

[0036] As Figure 3 shown, in one embodiment, the housing 1 of the height adjustment structure of the weeding machine wheel includes an upper housing 11, a lower housing 12 and a cover plate 13. The upper housing 11 and the lower housing 12 are cover-fitted, and the cover plate 13 and the upper housing 11 are cover-fitted. First connection holes and second connection holes are symmetrically arranged at both ends of the upper housing 11 and the lower housing 12. The first connection holes are rotatably connected to the brush grass plate 3, and the second connection holes are rotatably connected to the first rotating shaft 43 through the first gasket 14. This setting facilitates disassembly and installation, and at the same time facilitates the maintenance of the internal components of the housing 1.

[0037] As Figure 2As shown, in one of the embodiments, the wheel 2 of the wheel height adjustment structure of the weeding machine includes a hub 21, a decorative strip 22 and a wheel cover 23. The decorative strip 22 is in a covering fit with the inner ring of the hub 21, and the wheel cover 23 is in a covering fit with the hub 21. The second rotating shaft 44 is rotatably connected to the axis of the hub 21. The arrangement of the decorative strip 22 and the wheel cover 23 can make the appearance of the hub 21 beautiful.

[0038] The above embodiments only represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A lawn mower wheel height adjustment structure, characterized in that: The invention comprises a housing (1), one end of the housing (1) is rotatably provided with a wheel (2), the other end of the housing (1) is rotatably provided with a grass brushing disc (3), an adjustment component (4) is provided between the wheel (2) and the housing (1), and the adjustment component (4) comprises a shift plate (41) and a wheel seat (42), The shift plate (41) is mounted on one end of the housing (1) close to the wheel (2), and the shift plate (41) is provided with an arc-shaped step (411) and a plurality of ribs (412) arranged at intervals along the arc-shaped step (411). The wheel seat (42) is provided with a first rotating shaft (43) for rotating with the shell (1), a second rotating shaft (44) for rotating with the wheel (2) and a pull plate (45); the pull plate (45) is slidably connected to the wheel seat (42) via an elastic component (46); the bottom of the pull plate (45) passes through the top of the wheel seat (42) and is positioned with the rib (412); the first rotating shaft (43) and the second rotating shaft (44) are respectively located at two side ends of the wheel seat (42), and the centers of the second rotating shaft (44) and the first rotating shaft (43) are not on the same axis.

2. The wheel height adjustment structure of a lawn mower according to claim 1, characterized in that: The pulling plate (45) includes a toggle plate (451) and a positioning plate (452), the toggle plate (451) is symmetrically provided with a toggle groove (001) for toggling, the positioning plate (452) is provided with a positioning groove (002) for accommodating the rib (412), the positioning plate (452) is symmetrically provided with a sliding groove (003), the upper half of the wheel seat (42) is provided with a notch (421) for positioning with the toggle plate (451) and two limit blocks (422) for sliding with the sliding groove (003) of the positioning plate (452), and the positions of the two limit blocks (422) correspond to each other.

3. The wheel height adjustment structure of a lawn mower according to claim 1, characterized in that: The elastic component (46) comprises a pin (461) and a torsion spring. The pin (461) is mounted on the wheel seat (42) and contacts the pull plate (45). The torsion spring is sleeved on the pin (461). One end of the torsion spring abuts against the pull plate (45), and the other end of the torsion spring abuts against the wheel seat (42).

4. The wheel height adjustment structure of a lawn mower according to claim 1, characterized in that: The shell (1) comprises an upper shell (11), a lower shell (12) and a cover plate (13); the upper shell (11) is fitted with the lower shell (12); the cover plate (13) is fitted with the upper shell (11); a first connecting hole and a second connecting hole are symmetrically arranged at both ends of the upper shell (11) and the lower shell (12); the first connecting hole is rotatably connected to the brushing disc (3); and the second connecting hole is rotatably connected to the first rotating shaft (43) via a first gasket (14).

5. The wheel height adjustment structure of a lawn mower according to claim 1, characterized in that: The wheel (2) comprises a wheel hub (21), a decorative strip (22) and a wheel cover (23); the decorative strip (22) is fitted with the inner ring of the wheel hub (21); the wheel cover (23) is fitted with the wheel hub (21); and the second rotating shaft (44) is rotatably connected to the axis of the wheel hub (21) via a second gasket.

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