A lawnmower

Abstract

The utility model provides a mower relates to mower technical field, including body part, body part includes body main part and walking wheel subassembly, walking wheel subassembly includes main part frame, height adjustment body and wheel body, main part frame is connected with body main part, is provided with the hole site of height adjustment body installation on main part frame, is provided with gear structure on height adjustment body, gear structure includes a plurality of corresponding different height gear, gear can be connected in the hole site, wheel body is connected with height adjustment body, when needing to adjust the working height of mower, only need to pass through the gear of switching and hole site joint, can complete the height of wheel body adjustment, and the adjustment mode is simple and quick, through setting up walking wheel mounting site and trimming wheel mounting site on body main part, makes walking wheel subassembly and trimming wheel subassembly can adjust the installation according to the use demand, realizes the compatibility to trimming wheel, makes the working condition can carry out quick switching.

Description

Technical Field

[0001] This utility model relates to the field of lawnmower technology, and in particular to a lawnmower. Background Technology

[0002] Lawn mowers, as a common gardening tool, are widely used for lawn mowing in home gardens, parks, golf courses, and other locations. The wheels, as a crucial component of the lawn mower, directly determine the mowing height; therefore, adjustable wheel height is one of the core performance characteristics of a lawn mower. Different lawns require different mowing heights. For example, home garden lawns typically need to be maintained at a height of 5-8cm to ensure aesthetics and growth, while large park lawns may require adjustments to the mowing height from 3-10cm depending on the season. This necessitates adjustable wheel height for the lawn mower.

[0003] Currently, the height adjustment methods for lawnmower wheels on the market are mainly divided into bolt adjustment, pin hole adjustment, and lever adjustment. Most of these methods require the use of tools such as wrenches, which are cumbersome to operate and have low adjustment efficiency. Especially when working outdoors, it is inconvenient to carry tools, which can easily delay the work progress. In addition, the traditional height adjustment structure is also relatively complex, resulting in higher costs and failure rates.

[0004] In addition, current lawnmowers are generally incompatible with trimming wheels, requiring the replacement of equipment or significant modifications to the existing equipment for trimming work; furthermore, the installation of current lawnmower saw blades is generally done using tools such as wrenches, making it difficult to achieve quick blade replacement.

[0005] This application is filed to address the aforementioned deficiencies. Utility Model Content

[0006] The purpose of this utility model is to provide a lawnmower and propose a novel lawnmower height adjustment scheme that enables simple and quick height adjustment of the lawnmower, solving the problem of the current lawnmower height adjustment structure and method being relatively cumbersome.

[0007] To address the aforementioned problems, this utility model provides a lawnmower, including a body section. The body section includes a main body and a wheel assembly. The wheel assembly includes a main frame, a height adjustment mechanism, and wheels. The main frame is connected to the main body and has holes for mounting the height adjustment mechanism. The height adjustment mechanism has a gear structure with several gears corresponding to different heights. The gears can be engaged with the holes. The wheels are connected to the height adjustment mechanism. When the working height of the lawnmower needs to be adjusted, the height of the wheels can be adjusted simply by switching the gear that engages with the hole. The adjustment method is simple and quick.

[0008] According to one embodiment of the present invention, the gear shift structure includes a wave-shaped structure disposed on the height adjustment body, or other concave and convex structures of other shapes, such as sawtooth. Several troughs or peaks of the wave-shaped structure constitute several gear shifts. Preferably, 3 to 5 gear shifts are provided. The wave-shaped structure can generate deformation to realize gear shifting.

[0009] Furthermore, wave-shaped structures are provided on both sides of the height adjustment body, and hollowed-out parts are provided on the height adjustment body to facilitate the deformation effect of the wave-shaped structures and thus adjust the height.

[0010] According to an embodiment of the present invention, in order to address the problem that current lawnmowers are generally incompatible with trimming operations, the lawnmower of this solution also includes a trimming wheel assembly. The main body of the machine is provided with a walking wheel mounting position and a trimming wheel mounting position. The walking wheel mounting position is used to install the walking wheel assembly, and the trimming wheel mounting position is used to install the trimming wheel assembly. Both the walking wheel assembly and the trimming wheel assembly are detachable.

[0011] The traveling wheels and trimming wheels provide support during operation, reducing the difficulty and intensity of the operation.

[0012] In normal mowing mode, both the walking wheel assembly and the trimming wheel assembly can be installed on the main body of the machine. In this case, the rolling of the walking wheel assembly is used to move and mow. When performing trimming operations, only the trimming wheel assembly is installed, and the rolling of the trimming wheel is used to perform the trimming operation.

[0013] According to one embodiment of the present invention, the lawnmower further includes a saw blade fixing assembly, the saw blade fixing assembly includes a locking nut, the main body of the machine is provided with a saw blade mounting position, the saw blade mounting position is provided with a shaft lock and a saw blade shaft, the shaft lock is used to lock the saw blade shaft, and the locking nut is used to fix the saw blade on the saw blade shaft.

[0014] The saw blade shaft is the output shaft of the power unit (motor or internal combustion engine) or the shaft connected to the output shaft. The end of the saw blade shaft is provided with an external thread for connecting with a lock nut. The shaft lock is a press-type structure. By pressing the shaft lock, the saw blade shaft is locked so that it cannot rotate. At this time, the lock nut can be installed or removed to achieve quick change of saw blade.

[0015] According to one embodiment of the present invention, the saw blade fixing assembly further includes a pressure plate, and when the locking nut is tightened, the saw blade is pressed by the pressure plate.

[0016] According to one embodiment of the present invention, a protective cover is installed on the main body of the machine.

[0017] According to one embodiment of the present invention, the protective cover is detachably mounted on the main body of the machine.

[0018] According to one embodiment of the present invention, the connection between the walking wheel assembly, the trimming wheel assembly and / or the protective cover and the main body of the machine body adopts a snap-fit ​​structure to achieve quick installation and removal.

[0019] According to one embodiment of the present invention, the wheel body in the walking wheel assembly and / or the wheel group in the trimming wheel assembly are made of foamed wheels, which have lower costs and contribute to the lightweighting of the equipment.

[0020] According to one embodiment of the present invention, the lawnmower also includes a handle, which includes a rod connected to the main body of the machine and a grip handle disposed at the end of the rod, wherein the rod is a telescopic rod.

[0021] The beneficial effects of this utility model are as follows: By setting a height adjustment body with a gear structure, including several gears corresponding to different heights, the gears can be engaged with holes. When it is necessary to adjust the working height of the lawnmower, simply switching the gear engaged with the hole is sufficient to adjust the height of the wheel body. The adjustment method is simple and quick, and can cope with various complex usage scenarios. By setting a walking wheel mounting position and a trimming wheel mounting position on the main body, the walking wheel assembly and the trimming wheel assembly can be adjusted and installed according to usage requirements, achieving compatibility with the trimming wheel and enabling quick switching of working states. By setting a shaft lock and saw blade fixing assembly, the saw blade can be quickly changed, which is convenient to use and improves work efficiency.

[0022] The protective cover, the walking wheel assembly, and the trimming wheel assembly are connected to the main body of the machine through a snap-fit ​​structure, achieving tool-free quick installation and removal. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the overall structure of a lawnmower; Figure 2 This is a schematic diagram showing multiple states of the fuselage. Figure 3 A schematic diagram of the exploded structure of the protective cover and saw blade fixing assembly; Figure 4 A schematic diagram of the saw blade fixing assembly; Figure 5 This is a schematic diagram of the walking wheel assembly; Figure 6 This is a structural schematic diagram of the trimming wheel assembly; In the diagram: handle 1, rod 11, grip handle 12, machine body 2, main body 21, trimming wheel mounting position 211, traveling wheel mounting position 212, saw blade mounting position 213, shaft lock 214, protective cover mounting position 215, traveling wheel mounting position 216, saw blade shaft 217, trimming wheel assembly 22, wheel set 221, trimming wheel connecting part 222, traveling wheel assembly 23, main frame 231, traveling wheel connecting part 232, height adjustment body 233, wheel body 234, gear structure 235, saw blade 24, protective cover 25, protective cover connecting part 251, saw blade fixing assembly 26, locking nut 261, pressure plate 262. Detailed Implementation

[0025] The following description is only intended to disclose the present invention so that those skilled in the art can implement it. The embodiments in the following description are merely examples, and those skilled in the art will conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other solutions that do not depart from the spirit and scope of the present invention. Example 1:

[0026] A lawnmower, which may be a push-type lawnmower, but is not limited to a push-type lawnmower. like Figure 1 , Figure 2 The lawnmower includes a handle 1 and a body 2.

[0027] The handle 1 includes a rod 11 connected to the main body 21 and a grip handle 12 disposed at the end of the rod 11. Preferably, a switch for controlling the power unit is provided at the grip handle 12. The rod 11 is a telescopic rod or a fixed-length rod. Preferably, a telescopic rod is used to facilitate length adjustment.

[0028] The fuselage section 2 includes the main fuselage body 21 and the wheel assembly 23, such as Figure 5 The walking wheel assembly 23 includes a main frame 231, a height adjustment body 233, and wheels 234. The main frame 231 is connected to the main body 21 and can be either fixed or detachable. The main frame 231 has holes at both ends for mounting the height adjustment body 233. The height adjustment body 233 has a gear structure 235, which includes several gears corresponding to different heights. The gears can be engaged at the holes. The wheels 234 are rotatably connected to the height adjustment body 233 via a wheel axle. When it is necessary to adjust the working height of the lawnmower, the height of the wheels 234 can be adjusted simply by switching the gear engaged at the hole. The adjustment method is simple and quick.

[0029] Both the height adjustment body 233 and the wheel body 234 are provided in two sets. The gear structure 235 includes a wave-shaped structure provided on the height adjustment body 233, or other concave and convex structures of other shapes, such as sawtooth. Several troughs or peaks of the wave-shaped structure constitute several gears. Preferably, there are 2 to 5 gears. The wave-shaped structure can produce deformation to realize gear switching. Wave-shaped structures are provided on both sides of the height adjustment body 233. The height adjustment body 233 is provided with hollow parts to facilitate the deformation effect of the wave-shaped structure, thereby making height adjustment possible. Example

[0030] Based on Example 1, and in view of the problem that current lawnmowers are generally incompatible with trimming operations, this lawnmower solution also includes a trimming wheel assembly 22.

[0031] In this embodiment, the main frame 231 and the main body 21 are detachably connected. The main frame 231 is provided with a wheel connecting part 232, and the main body 21 is provided with a wheel mounting position 216. The wheel connecting part 232 and the wheel mounting position 216 can be engaged and connected.

[0032] The two ends of the main frame 231 are bent backward to make room for the installation of the trimming wheel.

[0033] like Figure 2 , Figure 3 The main body 21 is provided with a traveling wheel mounting position 216 and a trimming wheel mounting position 211. The trimming wheel mounting position 211 is used to install the trimming wheel assembly 22. The trimming wheel assembly 22 includes a wheel set 221 and a trimming wheel connecting part 222. The trimming wheel connecting part 222 is engaged with the trimming wheel mounting position 211, so that both the traveling wheel assembly 23 and the trimming wheel assembly 22 are detachable.

[0034] A protective cover 25 is installed on the main body 21 of the machine. The protective cover 25 is located around the saw blade 24. Preferably, the protective cover 25 is detachably installed on the main body 21 of the machine. Figure 3 The protective cover 25 is provided with a protective cover connecting part 251, and the main body 21 is provided with a protective cover mounting position 215. The protective cover connecting part 251 and the protective cover mounting position 215 are engaged and connected.

[0035] The above-mentioned snap-fit ​​connection method enables quick installation and removal.

[0036] It should be noted that, in addition to the above-mentioned snap-fit ​​structure, the protective cover 25, the walking wheel assembly 23 and the trimming wheel assembly 22 can also be detachably connected by setting connectors (such as bolts).

[0037] In normal mowing conditions, both the walking wheel assembly 23 and the trimming wheel assembly 22 can be mounted on the main body 21 of the machine, such as Figure 2In Figure A, only the walking wheel assembly 23 can be installed, such as... Figure 2 In Figure C, the walking wheel assembly 23 is used to move the lawn for mowing. When performing edge trimming operations, only the edge trimming wheel assembly 22 is installed, as shown in Figure C. Figure 2 Figure B shows how the trimming operation is achieved by using the rolling of the trimming wheel; Figure 2 Figure D shows a schematic diagram after both the walking wheel assembly 23 and the trimming wheel assembly 22 have been disassembled.

[0038] The wheel body 234 in the walking wheel assembly 23 and / or the wheel set 221 in the trimming wheel assembly 22 are made of foamed wheels, which are low in cost and contribute to the weight reduction of the equipment. Example 2:

[0039] Based on Example 1 or 2, such as Figure 3 , Figure 4 This embodiment addresses the problem of slow blade changing in traditional saws.

[0040] The lawnmower includes a saw blade fixing assembly 26, which includes a locking nut 261 and a pressure plate 262. The main body 21 of the machine has a saw blade mounting position 213. The saw blade mounting position 213 is equipped with a shaft lock 214 and a saw blade shaft 217. The shaft lock 214 is used to lock the saw blade shaft 217, and the locking nut 261 is used to fix the saw blade on the saw blade shaft 217.

[0041] Lock nut 261 can be tightened or loosened directly by hand.

[0042] The saw blade shaft 217 is the output shaft of the power assembly or a shaft connected to the output shaft. The power assembly is a motor or internal combustion engine installed on the main body 21. The end of the saw blade shaft 217 is provided with an external thread for connection with the locking nut 261. The shaft lock 214 is a press-type structure (which can be equipped with a spring to achieve automatic reset after release). By pressing the shaft lock 214, the saw blade shaft 217 is locked against the shaft lock, preventing it from rotating. At this time, the locking nut 261 can be installed or removed. When the locking nut 261 is locked, the saw blade is pressed by the pressure plate 262, realizing the quick change of the saw blade 24. It can replace the circular saw blade, diamond blade, straw rope, etc.

[0043] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations and modifications.

Claims

1. A lawnmower, characterized in that: The device includes a fuselage (2), which includes a fuselage body (21) and a wheel assembly (23). The wheel assembly (23) includes a main frame (231), a height adjustment body (233), and a wheel (234). The main frame (231) is connected to the fuselage body (21). The main frame (231) is provided with holes for the height adjustment body (233) to be installed. The height adjustment body (233) is provided with a gear structure (235). The gear structure (235) includes several gears corresponding to different heights. The gears can be engaged at the holes. The wheel (234) is connected to the height adjustment body (233). The height of the wheel (234) can be adjusted by switching the gears engaged with the holes.

2. The lawnmower according to claim 1, characterized in that: The gear structure (235) includes a wave-shaped structure set on the height adjustment body (233). Several troughs of the wave-shaped structure constitute several gears. The wave-shaped structure can deform to realize gear switching.

3. The lawnmower according to claim 1, characterized in that: The lawnmower also includes a trimming wheel assembly (22). The main body (21) is provided with a walking wheel mounting position (216) and a trimming wheel mounting position (211). The walking wheel mounting position (216) is used to install the walking wheel assembly (23), and the trimming wheel mounting position (211) is used to install the trimming wheel assembly (22). Both the walking wheel assembly (23) and the trimming wheel assembly (22) are detachable.

4. The lawnmower according to any one of claims 1-3, characterized in that: The lawnmower also includes a saw blade fixing assembly (26), which includes a locking nut (261). The main body (21) is provided with a saw blade mounting position (213). The saw blade mounting position (213) is provided with a shaft lock (214) and a saw blade shaft (217). The shaft lock (214) is used to lock the saw blade shaft (217), and the locking nut (261) is used to fix the saw blade on the saw blade shaft (217).

5. The lawnmower according to claim 4, characterized in that: The saw blade fixing assembly (26) also includes a pressure plate (262), and when the locking nut (261) is tightened, the saw blade is pressed by the pressure plate (262).

6. The lawnmower according to claim 3, characterized in that: A protective cover (25) is installed on the main body (21) of the fuselage.

7. The lawnmower according to claim 6, characterized in that: The protective cover (25) is detachably mounted on the fuselage body (21).

8. The lawnmower according to claim 7, characterized in that: The connection between the walking wheel assembly (23), the trimming wheel assembly (22) and / or the protective cover (25) and the main body (21) is a snap-fit ​​connection.

9. The lawnmower according to claim 3, characterized in that: The wheel body (234) in the walking wheel assembly (23) and / or the wheel set (221) in the trimming wheel assembly (22) are foamed wheels.

10. The lawnmower according to any one of claims 1-3, characterized in that: The lawnmower also includes a handle (1), which includes a rod (11) connected to the main body (21) and a grip handle (12) located at the end of the rod (11). The rod (11) is a telescopic rod.

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