Lawn mower

Abstract

A handrail assembly and a mower body can be connected and fixed at different included angles by arranging a rotary connecting rod and an adjustable fixing plate, and when the minimum included angle not smaller than 10 degrees is obtained, the mower can be folded and vertically stored, so that the occupied area is reduced, and the mower is convenient to store. More than one included angle larger than 90 degrees is provided for selection, and a user can conveniently and fully adjust the position of the handrail assembly according to the posture of the user so as to guarantee comfort and high efficiency of mowing operation.

Description

Technical Field

[0001] This utility model relates to the field of garden equipment technology, and in particular to lawn mowers. Background Technology

[0002] Existing walk-behind self-propelled lawnmowers consist of a main body and a handle assembly. The main body mainly includes a chassis, rollers, and a drive mechanism. The chassis opens downwards to form a cutting chamber, which contains a cutting blade. The drive mechanism is used to drive the cutting blade to rotate to achieve the mowing function, and to drive the rollers to rotate to achieve the self-propelled function. The flat chassis has a large footprint, making the whole machine inconvenient to store, especially for large walk-behind self-propelled lawnmowers of 20 inches or more, most of which adopt a double-blade structure design, and their chassis are even wider. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a lawnmower that can be folded and stored vertically.

[0004] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is as follows: a lawnmower, including a main body and a handle assembly. The handle assembly is rotatably connected to the rear of the main body and is adjustablely fixed to the main body. The connection and fixation of the handle assembly and the main body can form at least four different angles, wherein the smallest angle is no greater than 10°, the second smallest angle is 90°, and the other angles are all greater than 90°. The handle assembly is generally U-shaped, with rotating connecting rods formed at the lower ends of both sides. Adjustable fixing plates are provided on both sides of the rear of the main body. A pair of rotating connecting rods and a pair of adjustable fixing plates correspond one-to-one and are hinged to each other. A spring pressure plate is provided on the rotating connecting rod, and a bolt is provided on the spring pressure plate. The bolt passes through the rotating connecting rod and abuts against the adjustable fixing plate and is pressed by the spring pressure plate. Several limiting holes are provided on the adjustable fixing plate for inserting the bolt to press and fix the rotating connecting rod and the adjustable fixing plate.

[0005] In some embodiments, a rear wheel is provided on the outer side of the adjustable fixing plate, and the hinge point between the rotating connecting rod and the adjustable fixing plate is located above the rear wheel.

[0006] In some embodiments, the upper rear end of the adjustable fixing plate extends rearward to form an end corner.

[0007] In some embodiments, the adjustable fixing plate is provided with a pair of limiting plates to limit the rotation range of the rotating connecting rod. When the handrail assembly and the main body are connected and fixed to form the minimum and maximum included angles, the rotating connecting rod abuts against the limiting plates.

[0008] In some embodiments, the front of the main body is provided with a front cover, and the front of the front cover is provided with a handle.

[0009] In some embodiments, front wheels are provided on both sides of the front cover.

[0010] Due to the application of the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0011] This invention allows the handrail assembly and the main body to be connected and fixed at different angles by setting a rotating connecting rod and an adjustable fixing plate. When the minimum angle of not less than 10° is obtained, the lawnmower can be folded and stored upright to reduce the floor space and facilitate storage. This invention also provides more than one angle option greater than 90°, which allows users to fully adjust the position of the handrail assembly according to their own posture to ensure comfortable and efficient lawnmowing. Attached Figure Description

[0012] Figure 1 This is a perspective view of a lawnmower according to the present invention, with the side exhaust component and the grass collection hopper respectively mounted.

[0013] Figure 2 This is a schematic diagram of the structure in Embodiment 1 of the lawnmower proposed in this utility model, in which the handle assembly and the main body of the machine are connected and fixed to form four different angles.

[0014] Figure 3 This is a perspective view of the handrail assembly in Embodiment 1 of the lawnmower proposed in this utility model.

[0015] Figure 4 yes Figure 2 Enlarged views of parts a and b.

[0016] Figure 5 This is a schematic diagram of the folded and upright structure of an embodiment of the lawnmower proposed in this utility model.

[0017] In the diagram: 1. Main body; 2. Handrail assembly; 3. Front cover; 4. Lifting handle; 5. Rotating connecting rod; 6. Adjustable fixing plate; 7. Spring pressure plate; 8. Insert bolt; 9. Limiting hole; 10. Rear wheel; 11. End corner; 12. Limiting piece; 13. Front wheel; 14. Drive assembly; 15. Chassis; 16. Side exhaust component; 17. Grass collection hopper. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to specific embodiments:

[0019] Figures 1 to 5 This invention discloses one embodiment of the lawnmower proposed in this utility model.

[0020] Combination Figures 1 to 5Embodiment 1 is a walk-behind self-propelled double-disc lawnmower, comprising a main body 1 and a handle assembly 2. The main body 1 is relatively low around its perimeter and protrudes in the middle. A pair of front wheels 13 and a pair of rear wheels 10 are respectively located on the front and rear sides. From top to bottom, a drive assembly 14 and a chassis 15 are arranged in the middle. The chassis 15 opens downwards, forming a cutting chamber inside. Because a pair of rotating cutting blades (not shown in the figure) are arranged side-by-side in the cutting chamber, the chassis 15 is rectangular with rounded sides, having a wider width compared to the circular chassis of smaller single-disc lawnmowers. A side exhaust component 16 (corresponding to...) can be detachably installed on one side of the chassis 15. Figure 1 (A2), used to discharge chopped grass clippings from the side, and the grass collection hopper 17 (corresponding to) can be detachably installed at the rear of the main body 1. Figure 1 (A3), used to collect chopped grass clippings into the grass collection hopper 17. The lawnmower may also be equipped without the side exhaust 16 and the grass collection hopper 17 (corresponding to...). Figure 1 (A1), so that the chopped grass clippings fall directly onto the grass from the opening below the chassis 15.

[0021] The armrest assembly 2 is rotatably connected to the rear of the main body 1 and is adjustablely fixed to the main body 1. The connection and fixation between the armrest assembly 2 and the main body 1 can form four different included angles, which are 5°, 90°, 122.5° and 131.5° respectively (corresponding to...). Figure 2(B4, B3, B2, and B1) The handrail assembly 2 is generally U-shaped, with rotating connecting rods 5 at the lower ends of both sides. Adjustable fixing plates 6 are provided on both sides of the rear of the main body 1. A pair of rotating connecting rods 5 and a pair of adjustable fixing plates 6 correspond to each other and are hinged together. A spring pressure plate 7 is provided on the rotating connecting rod 5, and a plug 8 is provided on the spring pressure plate 7. The plug 8 passes through the rotating connecting rod 5 and abuts against the adjustable fixing plate 6 and is pressed by the spring pressure plate 7. The adjustable fixing plate 6 has four limiting holes 9 for inserting the plug 8 to press and fix the rotating connecting rod 5 and the adjustable fixing plate 6. The number and distribution of the limiting holes 9 determine the number and angle of the included angle that can be formed when the handrail assembly 2 and the main body 1 are connected and fixed. The spring pressure plate 7 has a built-in spring. One end of the plug 8 on it is pressed against the rotating connecting rod 5 by the spring, and the other end is raised so that the user can press it to raise one end of the plug 8 away from the rotating rod. A movable connecting rod 5 is used to achieve an adjustable connection and fixation between the handrail assembly 2 and the main body 1. A pair of adjustable fixing plates 6 and a pair of rear wheels 10 are corresponding one to one and parallel to each other. The adjustable fixing plate 6 is located inside the rear wheel 10. The hinge point between the rotating connecting rod 5 and the adjustable fixing plate 6 is located above the rear wheel 10. The upper rear end of the adjustable fixing plate 6 extends backward to form an end corner 11. The end corner 11 is rounded. A pair of limiting plates 12 are provided on the adjustable fixing plate 6. The pair of limiting plates 12 protrude from the surface of the adjustable fixing plate 6 and pass through the rotation plane of the rotating connecting rod 5 to limit the rotation range of the rotating connecting rod 5. When the handrail assembly 2 and the main body 1 are connected and fixed to form the minimum included angle and the maximum included angle, i.e., 5° and 131.5°, the rotating connecting rod 5 abuts against the limiting plates 12. The front end of the main body 1 is provided with a front cover 3. The front end of the front cover 3 is hollowed out to form a handle 4. A pair of front wheels 13 are set on both sides of the front cover 3.

[0022] In Embodiment 1, when the handle assembly 2 and the main body 1 are connected and fixed at a 5° angle, the lawnmower is in a folded state. Since the handle assembly 2 is generally U-shaped, the drive assembly 14, which protrudes above the main body 1, passes directly through the gap in the middle of the handle assembly 2, allowing the handle assembly 2 to be laid flat smoothly. At this time, the height of the highest drive assembly 14 on the main body 1 is the height of the lawnmower, and the lawnmower can be laid flat as follows. Figure 5 As shown, the lawnmower is stored upright to reduce its footprint. At this time, the end corners 11 of the pair of rear wheels 10 and the pair of adjustable fixing plates 6 contact the ground to support the whole machine. The user can lift the lawnmower upright by gripping the handle 4 instead of lifting the handle assembly 2 directly to avoid damaging the rotating connecting rod 5 and the adjustable fixing plate 6. The user can also drag the lawnmower by gripping the handle 4 or lift it directly after it is upright to realize the transportation and transfer after storage.

[0023] In this invention, the handrail assembly 2 and the main body 1 are connected and fixed to form at least four different angles. The smallest angle is no greater than 10°, the second smallest angle is 90°, and all other angles are greater than 90°. The smallest angle is the folding angle of the lawnmower. The second smallest angle is when the upper end of the handrail assembly 2 reaches its maximum height. The second smallest angle and the other angles are the working angles of the lawnmower. In the prior art, such lawnmowers usually only have two working angles, one of which is 90° and the other is about 135°. Users can adjust the height of the upper end of the handrail assembly 2 and its distance from the main body 1 by changing the working angle to adapt to their own posture for mowing. This invention can provide more than one working angle greater than 90° (such as 122.5° and 131.5° in Embodiment 1), making it more convenient for users to adjust the position of the handrail assembly 2 to ensure comfortable and efficient mowing.

[0024] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A lawnmower, comprising a main body (1) and a handle assembly (2), the handle assembly (2) being rotatably connected to the rear of the main body (1) and adjustablely fixed to the main body (1), characterized in that: The handrail assembly (2) and the main body (1) are connected and fixed to form at least four different angles, wherein the smallest angle is no greater than 10°, the second smallest angle is 90°, and the other angles are all greater than 90°. The handrail assembly (2) is generally in the shape of a door, and a rotating connecting rod (5) is formed at the lower end of both sides. The main body (1) is provided with adjustable fixing plates (6) on both sides of the rear. A pair of rotating connecting rods (5) and a pair of adjustable fixing plates (6) correspond to each other and are hinged to each other. A spring pressure plate (7) is provided on the rotating connecting rod (5), and a plug (8) is provided on the spring pressure plate (7). The plug (8) passes through the rotating connecting rod (5) and abuts against the adjustable fixing plate (6) and is pressed by the spring pressure plate (7). A number of limiting holes (9) are provided on the adjustable fixing plate (6) for the plug (8) to be inserted and pressed to connect and fix the rotating connecting rod (5) and the adjustable fixing plate (6).

2. The lawnmower according to claim 1, characterized in that: The adjustable fixing plate (6) has a rear wheel (10) on its outer side, and the hinge point between the rotating connecting rod (5) and the adjustable fixing plate (6) is located above the rear wheel (10).

3. The lawnmower according to claim 1, characterized in that: The adjustable fixing plate (6) extends rearward at its upper rear end to form an end corner (11).

4. The lawnmower according to claim 1, characterized in that: The adjustable fixing plate (6) is provided with a pair of limiting plates (12) to limit the rotation range of the rotating connecting rod (5). When the handrail assembly (2) and the main body (1) are connected and fixed to form the minimum and maximum included angles, the rotating connecting rod (5) abuts against the limiting plates (12).

5. The lawnmower according to claim 1, characterized in that: The front end of the main body (1) is provided with a front cover (3), and the front end of the front cover (3) is provided with a handle (4).

6. The lawnmower according to claim 5, characterized in that: The front cover (3) is provided with front wheels (13) on both sides.

Images