Lawn mower

Abstract

The utility model discloses a mowing machine, relates to the field of mowing machines, solves the problem of how to adjust the cutting diameter more conveniently, and adopts the technical scheme that the mowing machine comprises an extension rod, a protective cover with a cutting blade and a mowing assembly, and the mowing assembly is fixedly connected to the tail end of the extension rod. A support is installed on the extension rod, one of the support and the protective cover is provided with a first installation portion, the other one of the support and the protective cover is provided with a second installation portion, the first installation portion is provided with a plurality of installation positions which are matched with the second installation portion and detachably connected with the second installation portion, and the protective cover can be fixed to the extension rod through the first installation portion and the second installation portion. And can be fixed at different positions along the axis direction of the extension rod. According to the utility model, the change of the cutting diameter is met mainly by adjusting the position of the protective cover, and the device is safer, more reliable and more effective.

Description

Technical Field

[0001] The utility model relates to the field of lawn mowers, in particular to a lawn mower. Background Art

[0002] Lawn mowers are handheld tools used to cut weeds in lawns, gardens, pastures, etc. They can be divided into oil-powered and electric-powered types based on the power source, and front-powered and rear-powered types based on the power head structure.

[0003] During the use of a lawn mower, in order to improve the mowing efficiency, a larger cutting diameter is generally required to meet the requirements. However, the change of the cutting diameter of the product generally requires the user to adjust the position of the cutting blade to meet different cutting diameters. This structure has certain disadvantages, such as easy to cut the operator, and the need to clean the grass clippings covering the blade position before adjustment. Utility Model Content

[0004] The purpose to be achieved by the utility model is to provide a lawn mower that solves the problem of how to more conveniently adjust the cutting diameter. The effect is that the position of the protective cover can be adjusted to meet the changes in the cutting diameter, which is safer, more reliable and more effective.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a lawn mower, comprising an extension rod, a protective cover with a cutting blade and a grass-cutting assembly, the grass-cutting assembly being fixedly connected to the end of the extension rod, a bracket being installed on the extension rod, one of the bracket and the protective cover being provided with a first mounting portion, and the other being provided with a second mounting portion, the first mounting portion being provided with a plurality of mounting positions that are adapted to and detachably connected to the second mounting portion, the protective cover being fixed to the extension rod through the first mounting portion and the second mounting portion, and being able to be fixed at different positions along the axial direction of the extension rod.

[0006] After adopting the above technical scheme, the utility model has the following advantages: the bracket and the extension rod are installed on the grass trimming assembly, and then the protective cover with the cutting blade is installed on the bracket. The operator can hold the extension rod to use the grass trimming assembly to mow the grass. When the cutting diameter of the cutting blade needs to be switched, the relative position of the second mounting part of the protective cover and the first mounting part on the bracket is changed, so that the protective cover can be adjusted along the axial direction of the extension rod, which can achieve safe and efficient switching of the cutting diameter of the cutting blade. It only needs to adjust the position of the protective cover, and there is no need to adjust the position of the cutting blade, so that the blade can be safer, more reliable and more effective. In the prior art, it is necessary to first clean the grass clippings covering the blade position, and then adjust the position of the cutting blade to switch the cutting diameter. This scheme avoids direct contact between the human hand and the blade, ensures safety and stability during operation, and is simple to operate.

[0007] Furthermore, the installation position is a first through hole, and the second installation portion is provided with a second through hole, and the second through hole is selectively aligned with multiple first through holes and is detachably connected through a connecting piece.

[0008] By adopting the above-mentioned technical solution, the combined installation of the first through hole and the second through hole allows the protective cover to be switched to different positions relative to the bracket, which is convenient for the operator to install. Moreover, since the position of the through hole, that is, the installation position, is fixed, the distance between the protective cover and the grass trimming component can be switched more accurately, making the cutting diameter of the cutting blade more controllable.

[0009] Furthermore, the mounting position is a first through hole, the second mounting portion is provided with a second through hole, multiple first through holes are connected to form a through slot, the second through hole is aligned with the through slot and connected through a connecting piece, and the connection position can be adjusted along the axis direction of the extension rod.

[0010] By adopting the above-mentioned technical solution, the combination of the first through hole or the second through hole and the through slot is installed, so that the protective cover can be switched to different positions relative to the bracket, which is convenient for the operator to install. Moreover, since the through slot can be adjusted steplessly, the cutting diameter of the cutting blade can be adjusted steplessly to meet the different needs of users.

[0011] Furthermore, the grass trimming assembly includes a fixing rod, one side of the bracket is fixed on the fixing rod, and is sleeved on the extension rod in cooperation with the protective cover.

[0012] By adopting the above technical solution, the relative displacement between the extension rod and the fixed rod is avoided by the socket connection of the bracket and the protective cover, making the extension rod more stable after assembly and the bracket installed on the fixed rod more stable during operation.

[0013] Furthermore, the protective cover is arc-shaped, and the concave portion of the protective cover serves as a protective surface.

[0014] By adopting the above technical solution, the concave portion of the protective cover is used as a protective surface, so that the cut grass is blocked within the protective surface, thereby better protecting the safety of the user when using the lawn mower.

[0015] Furthermore, the cutting blade is fixed in the protective surface and installed near the bracket.

[0016] By adopting the above technical solution, the cutting blade is arranged in the protective surface, so that the grass stems cut by the cutting blade can be wrapped by the protective surface, preventing the grass stems from flying out and hitting people.

[0017] Furthermore, the protective cover is further provided with a first clamping groove, and the bracket is provided with a first clamping piece adapted to the first clamping groove.

[0018] By adopting the above technical solution, the protective cover is more stably installed on the bracket through the cooperation between the first clamping groove and the first clamping piece.

[0019] Furthermore, the bracket is further provided with a second snap-fitting groove, and the protective cover is provided with a second snap-fitting piece adapted to the second snap-fitting groove.

[0020] By adopting the above technical solution, the second clamping groove and the second clamping piece cooperate with each other, so that the protective cover is installed on the bracket more stably.

[0021] Furthermore, the grass cutting assembly also includes a fixing rod, the end of the extension rod is installed on the fixing rod, the fixing rod is provided with a first through hole, and the bracket is provided with a corresponding second through hole, the first through hole and the second through hole are passed through by a first bolt and abut against the extension rod.

[0022] By adopting the above technical solution, the first bolt passes through the first through hole and the second through hole, and the bracket is installed on the fixed rod, while strengthening the connection between the extension rod and the fixed rod, making the bracket and the extension rod easy to disassemble and repair.

[0023] Furthermore, the first through hole and the second through hole are connected to each other by a second bolt.

[0024] By adopting the above technical solution, the second bolt passes through the first through hole and the second through hole, and the protective cover is installed on the bracket, so that the protective cover is easy to install and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of a lawn mower according to the present invention;

[0027] Figure 2 This is a partial exploded view of a lawn mower;

[0028] Figure 3 This is a partial exploded view of a lawn mower;

[0029] Figure 4 This is an exploded view of a second embodiment of a lawn mower.

[0030] Description of the drawings: 1. Extension rod; 2. Grass trimming assembly; 21. Fixing rod; 23. First through hole; 3. Bracket; 31. First mounting portion; 311. First through hole; 32. Second through hole; 33. First snap-in piece; 4. Protective cover; 41. Protective surface; 42. First snap-in groove; 43. Second mounting portion; 431. Second through hole; 5. Cutting blade; 6. First bolt; 7. Second bolt. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0032] The terms "first," "second," and so on (if any) in the specification and claims of this utility model are used to distinguish similar objects, not to describe a specific order or precedence. Even if "second" is used before a technical feature to distinguish it, it does not necessarily imply the presence of "first." It should be understood that in this utility model, "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. It should be understood that in this utility model, "plurality" refers to two or more. "And / or" is merely a description of an association between related objects, indicating that three relationships can exist. For example, "X and / or Y" can mean: X exists alone, X and Y exist simultaneously, or Y exists alone. The character " / " generally indicates that the related objects are in an "or" relationship. "Including X, Y, and Z" means that all three of X, Y, and Z are included. "Including X, Y, or Z" means that one of X, Y, and Z is included. "Including X, Y, and / or Z" means that any one, any two, or any three of X, Y, and Z are included.

[0033] The following specific embodiments are used to describe the technical solution of the present invention in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0034] Example 1:

[0035] like Figures 1 to 4 As shown, the utility model provides a lawn mower 4, comprising an extension rod 1, a protective cover 4 with a cutting blade 5 and a grass trimming component 2, the grass trimming component 2 is fixedly connected to the end of the extension rod 1, and a bracket 3 is installed on the extension rod 1, one of the bracket 3 and the protective cover 4 is provided with a first mounting portion 31, and the other is provided with a second mounting portion 43, the first mounting portion 31 is provided with a plurality of mounting positions adapted to and detachably connected to the second mounting portion 43, the protective cover 4 can be fixed to the extension rod 1 through the first mounting portion 31 and the second mounting portion 43, and can be fixed at different positions along the axial direction of the extension rod 1.

[0036] After adopting the above technical scheme, the utility model has the following advantages: the bracket 3 and the extension rod 1 are installed on the grass trimming component 2, and then the protective cover 4 with the cutting blade 5 is installed on the bracket 3. The operator can hold the extension rod 1 to use the grass trimming component 2 to mow the grass. When the cutting diameter of the cutting blade 5 needs to be switched, the second mounting portion 43 of the protective cover 4 and the first mounting portion 31 on the bracket 3 are changed in relative position, so that the protective cover 4 can be adjusted along the axial direction of the extension rod 1, so that the cutting blade 5 can switch the cutting diameter safely and efficiently. Only the position of the protective cover 4 needs to be adjusted, and the position of the cutting blade 5 does not need to be adjusted, making the blade safer, more reliable and effective. In the prior art, it is necessary to first clean the grass clippings covering the blade position, and then adjust the position of the cutting blade 5 to switch the cutting diameter. This scheme avoids direct contact between the human hand and the blade, ensures safety and stability during operation, and is simple to operate.

[0037] Further, such as Figures 1 to 3 As shown, the mounting position is a first through hole 31, the second mounting portion 43 includes a second through hole 431, multiple first through holes 311 are connected to form a through groove, the second through hole 431 is aligned with the through groove and connected through a connecting piece, and the connection position can be adjusted along the axial direction of the extension rod 1.

[0038] By adopting the above-mentioned technical solution, the combination of the first through hole 311 or the second through hole 431 and the through slot is installed, so that the protective cover 4 can be switched to different positions relative to the bracket 3, which is convenient for the operator to install. Moreover, since the through slot can be adjusted steplessly, the cutting diameter of the cutting blade 5 can be adjusted steplessly to meet the different needs of users.

[0039] Furthermore, the mowing assembly 2 includes a fixing rod 21. In order to enhance the stability of the extension rod 1, one side of the bracket 3 is fixed to the fixing rod 21 and is fitted on the extension rod 1 in cooperation with the protective cover 4.

[0040] By adopting the above-mentioned technical solution, the relative displacement between the extension rod 1 and the fixed rod 21 is avoided by the socketing of the bracket 3 and the protective cover 4, so that the extension rod 1 is more stable after assembly, and the bracket 3 installed on the fixed rod 21 is more stable during operation.

[0041] Furthermore, in order to enhance the protection of the protective cover, the protective cover 4 is designed to be arc-shaped, and the concave portion of the protective cover 4 is a protective surface 41 .

[0042] By adopting the above technical solution, the recessed portion of the protective cover 4 is used as the protective surface 41 so that the cut grass is blocked within the protective surface 41, thereby better protecting the safety of the user when using the lawn mower.

[0043] Furthermore, in order to protect the safety of the operator, the cutting blade 5 is fixed in the protective surface 41 and installed near the bracket 3 .

[0044] By adopting the above technical solution, the cutting blade 5 is arranged in the protective surface 41 so that the grass stems cut by the cutting blade 5 can be wrapped by the protective surface 41 to prevent the grass stems from flying out and hitting people.

[0045] Furthermore, in order to enhance the stability of the protective cover 4 , the protective cover 4 is further provided with a first clamping groove 42 , and the bracket 3 is provided with a first clamping piece 33 adapted to the first clamping groove 42 .

[0046] By adopting the above technical solution, the first engaging groove 42 cooperates with the first engaging piece 33 , so that the protective cover 4 is more stably installed on the bracket 3 .

[0047] Furthermore, in order to enhance the stability of the protective cover 4 , the bracket 3 is further provided with a second clamping groove, and the protective cover 4 is provided with a second clamping piece adapted to the second clamping groove.

[0048] By adopting the above technical solution, the second clamping groove and the second clamping piece cooperate with each other, so that the protective cover 4 is installed on the bracket 3 more stably.

[0049] Furthermore, in order to facilitate the disassembly of the bracket 3 and the extension rod 1, the grass cutting assembly 2 also includes a fixed rod 21, and the end of the extension rod 1 is installed on the fixed rod 21. The fixed rod 21 is provided with a first through hole 23, and the bracket 3 is provided with a corresponding second through hole 32. The first through hole 23 and the second through hole 32 are passed through by the first bolt 6 and abut against the extension rod 1.

[0050] By adopting the above-mentioned technical solution, the first bolt 6 passes through the first through hole 23 and the second through hole 32, and the bracket 3 is installed on the fixed rod 21, while strengthening the connection between the extension rod 1 and the fixed rod 21, so that the bracket 3 and the extension rod 1 are easy to disassemble and repair.

[0051] Furthermore, the connecting member is a second bolt 7 .

[0052] By adopting the above technical solution, the second bolt 7 passes through the first through hole 311 and the second through hole 431 to install the protective cover 4 on the bracket 3, so that the protective cover 4 is easy to install and maintain.

[0053] Example 2:

[0054] like Figure 4As shown, the difference between this embodiment and embodiment 1 is that each of the first through holes 311 exists independently and is spaced a distance apart from each other, and the second through holes 431 are selectively aligned with the mounting portions of multiple first through holes 311 and are detachably connected via connectors.

[0055] By adopting the aforementioned technical solution, the combined installation of the first through hole 311 and the second through hole 431 allows the protective cover 4 to be switched to different positions relative to the bracket 3, which is convenient for the operator to install. Moreover, since the positions of the through holes are fixed, the distance between the protective cover 4 and the mowing component 2 can be switched more accurately, making the cutting diameter of the cutting blade 5 more controllable.

[0056] In addition to the above-mentioned preferred embodiments, the present invention has other implementation methods. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A lawn mower comprising an extension rod, a protective cover with a cutting blade, and a mowing assembly, wherein the mowing assembly is fixedly connected to the end of the extension rod, characterized in that: A bracket is installed on the extension rod, and one of the bracket and the protective cover is provided with a first mounting portion, and the other is provided with a second mounting portion. The first mounting portion is provided with multiple mounting positions that are adapted to and detachably connected to the second mounting portion. The protective cover can be fixed to the extension rod through the first mounting portion and the second mounting portion, and can be fixed at different positions along the axial direction of the extension rod.

2. A lawn mower according to claim 1, characterized in that: The installation position is a first through hole, and the second installation portion is provided with a second through hole. The second through hole is selectively aligned with the plurality of first through holes and is detachably connected via a connector.

3. The lawn mower according to claim 1, characterized in that: The mounting position is a first through hole, the second mounting portion is provided with a second through hole, multiple first through holes are connected to form a through slot, the second through hole is aligned with the through slot and connected through a connecting piece, and the connection position can be adjusted along the axis direction of the extension rod.

4. A lawn mower according to claim 1, characterized in that: The grass trimming component includes a fixing rod, one side of the bracket is fixed on the fixing rod, and is sleeved on the extension rod in cooperation with the protective cover.

5. The lawn mower according to claim 1, characterized in that: The protective cover is arc-shaped, and the concave portion of the protective cover serves as a protective surface.

6. A lawn mower according to claim 5, characterized in that: The cutting blade is fixed in the protection surface and installed near the bracket.

7. The lawn mower according to claim 1, characterized in that: The grass trimming assembly also includes a fixing rod, the end of the extension rod is installed on the fixing rod, the fixing rod is provided with a first through hole, and the bracket is provided with a corresponding second through hole. The first through hole and the second through hole are passed through by a first bolt and abut against the extension rod.

8. The lawn mower according to claim 1, characterized in that: The protective cover is further provided with a first clamping groove, and the bracket is provided with a first clamping piece adapted to the first clamping groove.

9. The lawn mower according to claim 1, characterized in that: The bracket is further provided with a second clamping groove, and the protective cover is provided with a second clamping piece adapted to the second clamping groove.

10. A lawn mower according to claim 2 or 3, characterized in that: The connecting member is a second bolt.

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