A lawn mower

Abstract

The present invention discloses a lawn mower, which relates to the technical field of plant cutting. The lawn mower of the present invention includes: a main body and a handle; the main body includes a chassis, a height-adjusting handle and a height-adjusting baffle plate, the height-adjusting baffle plate has a gear chute, and the height-adjusting handle is inserted into the gear chute; the lawn mower further includes a dust-proof plate and a support structure, the dust-proof plate is arranged below the height-adjusting baffle plate, sleeved on the height-adjusting handle and slides below the height-adjusting baffle plate driven by the height-adjusting handle; the support structure is arranged below the dust-proof plate to support the dust-proof plate; the direction of moving the height-adjusting handle between different gears is defined as the first direction, the dust-proof plate is a rigid baffle plate and at least part of it is foldable, and when it moves along the first direction driven by the height-adjusting handle, it can be folded and deformed under the limitation of the chassis. The movement direction of the rigid dust-proof plate of the present invention can be changed, and the longitudinal space required is reduced compared with that of a non-foldable rigid baffle plate, making the internal structure of the cutting machine compact.

Description

Technical Field

[0001] The present invention relates to the technical field of plant cutting, and particularly relates to a lawn mower. Background Art

[0002] A lawn mower is also called a weeding machine, a grass cutting machine, a lawn trimmer, etc. A lawn mower is a mechanical tool for trimming lawns, vegetation, etc. It is composed of a cutter head, an engine, walking wheels, a walking mechanism, blades, a handrail, and a control part. The cutter head is installed on the walking wheels, the engine is installed on the cutter head, the output shaft of the engine is installed with blades, and the blades use the high-speed rotation of the engine to greatly improve the speed, saving the working time of weeding workers and reducing a large amount of human resources. In order to achieve cutting at different heights, a height adjustment device needs to be set on the lawn mower, and the height of the blades is adjusted through the height adjustment device. In the prior art, the height adjustment device includes main structures such as a height adjustment baffle and a height adjustment handle.

[0003] A dust-proof device needs to be set at the height adjustment baffle of the lawn mower to prevent weeds from affecting the normal use of the structure at the height adjustment baffle. The existing dust-proof device is a rubber dust-proof plate. The existing rubber dust-proof plate has incomplete coverage and soft material, not only has a poor dust-proof effect, but also is easy to deform after long-term use, resulting in a poor user experience.

[0004] In order to solve the problem of easy deformation of the soft rubber dust-proof plate, a hard sliding dust-proof plate is used to replace the rubber dust-proof plate in the prior art. However, during the sliding process of the hard dust-proof plate, since it cannot be folded and deformed, the movement space is too large, resulting in the dust-proof device being unable to be arranged or the overall volume of the lawn mower needs to be increased.

[0005] Based on the above problems, there is an urgent need to provide a lawn mower to solve the problem that a large movement space is required for the hard dust-proof plate during use. Summary of the Invention

[0006] The purpose of the present invention is to provide a lawn mower that can solve the problem that a large movement space is required for the dust-proof plate during use in the prior art.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] A lawn mower, comprising: a main body and a handle;

[0009] The main body includes a chassis, a height adjustment handle and a height adjustment baffle. The height adjustment baffle has a gear chute, and the height adjustment handle passes through the gear chute; the lawn mower further includes:

[0010] A dust-proof plate, which is arranged below the height adjustment baffle, sleeved on the height adjustment handle and slides below the height adjustment baffle under the drive of the height adjustment handle;

[0011] A support structure is provided below the dust-proof plate to support the dust-proof plate.

[0012] The direction of moving the height-adjusting handle between different gears is defined as the first direction. The dust-proof plate is a rigid baffle and is at least partially foldable, and when moving along the first direction driven by the height-adjusting handle, it can be folded and deformed under the restriction of the chassis.

[0013] As a preferred solution of the above lawn mower, both the height-adjusting baffle and the support structure are arched.

[0014] As a preferred solution of the above lawn mower, the support structure is two symmetrically arranged support ribs. The cross-section of the support rib is L-shaped, including a side baffle portion and a support portion that are perpendicular to each other; the dust-proof plate is supported between the two L-shaped support ribs.

[0015] As a preferred solution of the above lawn mower, the support structure is integrally formed with the upper cover of the lawn mower.

[0016] As a preferred solution of the above lawn mower, the lawn mower further includes a slope assembly for changing the movement direction of the dust-proof plate. The slope assembly includes a first slope structure forming a first inclined surface connected to the horizontal plane of the chassis and a second slope structure forming a second inclined surface connected to the horizontal plane of the chassis; both the first slope structure and the second slope structure are provided on the chassis and are respectively located on the extension lines at both ends of the support structure.

[0017] As a preferred solution of the above lawn mower, both the first slope structure and the second slope structure are protruding ribs provided on the chassis. The intersection line of the first inclined surface and the horizontal plane is defined as the first straight line, and the intersection line of the second inclined surface and the horizontal plane is defined as the second straight line. The distance between the first straight line and the second straight line is greater than the distance between the tops of the two protruding ribs.

[0018] As a preferred solution of the above lawn mower, the dust-proof plate is made of a multi-fold adhesive and includes a plurality of folding zones, and folding lines are provided between adjacent folding zones.

[0019] As a preferred solution of the above lawn mower, the dust-proof plate includes a plurality of connecting blocks, and adjacent connecting blocks are hinged to each other.

[0020] As a preferred solution of the above lawn mower, a transverse groove is provided on the dust-proof plate, and the length direction of the transverse groove is perpendicular to the first direction.

[0021] As a preferred solution of the above lawn mower, the transverse groove is blocked by two rubber pads, and the height-adjusting handle can pass through between the two rubber pads.

[0022] Advantages of the present invention:

[0023] For the cutting machine proposed by the present invention, the dust-proof plate provided thereon is a rigid baffle and at least partially foldable. When it touches the chassis, it can be folded and deformed to change the movement direction, thereby reducing the required space for the dust-proof plate in the longitudinal direction and making the overall structure of the cutting machine compact. Description of the drawings

[0024] Figure 1 is a schematic structural diagram of a lawn mower provided by a specific embodiment of the present invention;

[0025] Figure 2 is a schematic structural diagram inside the main body provided by a specific embodiment of the present invention;

[0026] Figure 3 is Figure 2 a partial enlarged view of part A in

[0027] Figure 4 is a structural diagram of the relative position between the upper cover and the height-adjusting handle provided by a specific embodiment of the present invention;

[0028] Figure 5 is Figure 4 a sectional view taken along the line A-A in

[0029] Figure 6 is Figure 5 a partial enlarged view of part B in

[0030] Figure 7 is a schematic structural diagram of the cooperation between the dust-proof plate and the upper cover provided by a specific embodiment of the present invention;

[0031] Figure 8 is a schematic structural diagram of the upper cover provided by a specific embodiment of the present invention;

[0032] Figure 9 is an exploded view of the dust-proof plate provided by a specific embodiment of the present invention.

[0033] Among them, 1, main body; 2, connecting rod; 3, handle; 4, starting trigger; 5, dust-proof plate;

[0034] 11, chassis; 12, upper cover; 13, height-adjusting handle; 14, height-adjusting baffle;

[0035] 51, connecting block; 52, transverse groove; 53, rubber pad; 54, connecting member;

[0036] 111, first ramp structure; 112, second ramp structure;

[0037] 121, support structure; 1211, side blocking part; 1212, support part. DETAILED DESCRIPTION

[0038] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0039] like Figure 1 As shown, this embodiment provides a lawn mower, which includes a main body 1 and a handle 3, and the main body 1 and the handle 3 are connected by a connecting rod 2, and a starting trigger 4 is also provided near the handle 3. The main body 1 is supported by a walking mechanism and walks on the lawn, and cuts the weeds with the cutting knife on the lower surface. Specifically, the main body 1 includes a chassis 11, an upper cover 12, a height adjustment handle 13 and a height adjustment baffle 14. The height adjustment baffle 14 supports the movement of the height adjustment handle 13, so that the cutting height of the cutting knife can be adjusted by adjusting the height adjustment handle 13 to different gears. Figures 2 - 4 As shown, the height adjustment baffle 14 is arranged above the chassis 11, and the height adjustment baffle 14 is fixed on the upper cover 12. The surface of the height adjustment baffle 14 has a gear slide groove, and the height adjustment handle 13 is inserted into the gear slide groove.

[0040] In order to prevent weeds and dust from entering the interior of the upshift plate 14 through the gear slide slot on the upshift plate 14 and affecting the adjustment mechanism, Figures 5 - 7 As shown, there are also dustproof plate 5 and supporting structure 121 below the height adjustment plate 14, wherein the dustproof plate 5 is sleeved on the height adjustment handle 13 and slides under the height adjustment baffle 14 driven by the height adjustment handle 13; the supporting structure 121 is integrally formed on the upper cover 12 and is arranged below the dustproof plate 5 to support the dustproof plate 5.

[0041] In this embodiment, the dustproof plate 5 is a hard baffle and includes a plurality of mutually foldable connecting blocks 51, and the connecting blocks 51 are hinged. In other embodiments, the dustproof plate 5 can also be made of foldable rubber, including a plurality of folding areas, and there are folding lines between adjacent folding areas, so that folding can be achieved between adjacent folding areas.

[0042] The height-adjusting baffle 14 and the supporting structure 121 are both arched, and an arched guide track is formed between the height-adjusting baffle 14 and the supporting structure 121 to serve as a sliding guide for the dustproof plate 5 .

[0043] In this embodiment, if Figure 5 and 6 As shown, the support structure 121 is two symmetrically arranged support ribs, the cross section of the support rib is L-shaped, and includes a side stop 1211 and a support portion 1212 perpendicular to each other; the dustproof plate 5 is supported between the two L-shaped support ribs. The support portion 1212 can support the dustproof plate 5, and the side stop 1211 can limit the dustproof plate 5 from sliding between the two support ribs, preventing the dustproof plate 5 from detaching from the support structure, and has a guiding effect.

[0044] like Figure 8As shown, the support structure 121 is integrally formed with the upper cover 12 of the lawn mower, which is simple to manufacture and reduces the assembly steps.

[0045] As Figure 2 and 3 shown, a ramp assembly is also provided on the chassis 11 for changing the movement direction of the dust-proof plate 5. The ramp assembly includes a first ramp structure 111 and a second ramp structure 112. The first ramp structure 111 forms a first inclined surface connected to the horizontal plane of the chassis 11, and the second ramp structure 112 forms a second inclined surface connected to the horizontal plane of the chassis 11; the first ramp structure 111 and the second ramp structure 112 are respectively located on the extension lines at both ends of the support structure 121. Define the direction of moving the height-adjusting handle 13 between different gears as the first direction. When the dust-proof plate 5 moves along the first direction driven by the height-adjusting handle 13, taking the example of sliding to one side of the first ramp structure 111, when one end of the dust-proof plate 5 slides onto the first ramp structure 111, the connecting block 51 at the end of the dust-proof plate 5 rests on the first inclined surface and slides along the first inclined surface as the dust-proof plate 5 continues to slide, so that the connecting blocks 51 sliding out of the arched guide track all slide along the first inclined surface. When the foremost connecting block 51 slides to the bottom end of the first ramp structure 111, this connecting block 51 slides along the first inclined surface to the horizontal plane of the chassis 11 connected thereto, thus realizing the change of the movement direction of the dust-proof plate 5. In this embodiment, since the different connecting blocks 51 of the dust-proof plate 5 can be folded with each other, relative rotation between the different connecting blocks 51 can be realized during the movement process, providing a structural basis for the change of the movement direction of the dust-proof plate 5; in addition, setting the ramp assembly on the chassis 11 can guide the movement of the dust-proof plate 5 to prevent the dust-proof plate 5 from undergoing uncertain folding deformation when folding against the chassis 11, resulting in jamming between adjacent connecting blocks 51 and preventing the dust-proof plate 51 from sliding smoothly along the arched guide track during subsequent reverse movement.

[0046] The above structure can realize the change of the movement direction of the dust-proof plate 5 made of a rigid baffle. When the dust-proof plate 5 slides, the longitudinal space required is smaller than that of a non-foldable rigid baffle, making the internal structure of the cutting machine compact.

[0047] In this embodiment, both the first ramp structure 111 and the second ramp structure 112 are protruding ribs provided on the chassis 11. The intersection line of the first inclined surface and the horizontal plane is defined as the first straight line, and the intersection line of the second inclined surface and the horizontal plane is defined as the second straight line. The distance between the first straight line and the second straight line is greater than the distance between the tops of the two protruding ribs. That is, when the dust-proof plate 5 slides towards the first ramp structure 111 and the second ramp structure 112 respectively and slides onto the horizontal plane of the chassis 11 through the first inclined surface and the second inclined surface respectively, the dust-proof plate 5 moves in opposite directions respectively.

[0048] As Figure 9As shown, a transverse groove 52 is provided on the dust-proof plate 5. The length direction of the transverse groove 52 is perpendicular to the first direction. The height-adjusting handle 13 is inserted into the transverse groove 52 and can move along the length direction of the transverse groove 52 to cooperate with different gear grooves on the height-adjusting baffle 14.

[0049] Among them, the transverse groove 52 is blocked by two rubber pads 53 to play a role in dust and weed prevention. The two rubber sheets 53 are butted against each other, and the sides away from each other are fixed on the dust-proof plate 5 through a connecting member 54. The height-adjusting handle 13 is inserted between the two rubber pads 53 and moves between the two rubber pads 53.

[0050] Note that the above is only a preferred embodiment of the present invention. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A lawn mower, comprising: Main body and handle; The main body includes a chassis, a height-adjusting handle and a height-adjusting baffle. The height-adjusting baffle has a gear chute, and the height-adjusting handle is inserted into the gear chute; the lawn mower further includes a dust-proof plate, which is arranged below the height-adjusting baffle, sleeved on the height-adjusting handle and slides below the height-adjusting baffle driven by the height-adjusting handle; a support structure, which is arranged below the dust-proof plate to support the dust-proof plate; The direction of moving the height-adjusting handle between different gears is defined as the first direction. The dust-proof plate is a rigid baffle and at least partially foldable, and when moving along the first direction driven by the height-adjusting handle, it can be folded and deformed under the limitation of the chassis. The lawn mower further includes a slope assembly for changing the moving direction of the dust-proof plate.

2. The lawn mower according to claim 1, characterized in that, Both the height-adjusting baffle and the support structure are arched.

3. The lawn mower according to claim 2, characterized in that, The support structure is two symmetrically arranged support ribs. The cross-section of the support rib is L-shaped, including a side baffle part and a support part that are perpendicular to each other; the dust-proof plate is supported between the two L-shaped support ribs.

4. The lawn mower according to claim 3, characterized in that, The support structure is integrally formed with the upper cover of the lawn mower.

5. The lawn mower according to claim 1, characterized in that, The slope assembly includes a first slope structure forming a first inclined surface connected to the horizontal plane of the chassis and a second slope structure forming a second inclined surface connected to the horizontal plane of the chassis; both the first slope structure and the second slope structure are arranged on the chassis and are respectively located on the extension lines at both ends of the support structure.

6. The lawn mower according to claim 5, characterized in that, Both the first slope structure and the second slope structure are protruding ribs arranged on the chassis. The intersection line of the first inclined surface and the horizontal plane is defined as the first straight line, and the intersection line of the second inclined surface and the horizontal plane is defined as the second straight line. The distance between the first straight line and the second straight line is greater than the distance between the tops of the two protruding ribs.

7. The lawn mower according to claim 1, characterized in that, The dust-proof plate is made of multi-fold glue and includes a plurality of folding areas, and there are folding lines between adjacent folding areas.

8. The lawn mower according to claim 1, characterized in that, The dust-proof plate includes a plurality of connecting blocks, and adjacent connecting blocks are hinged to each other.

9. The lawn mower according to claim 1, characterized in that, A transverse groove is arranged on the dust-proof plate, and the length direction of the transverse groove is perpendicular to the first direction.

10. The lawn mower according to claim 9, characterized in that, The transverse groove is blocked by two rubber pads, and the height-adjusting handle is inserted between the two rubber pads.

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