Lawn trimming device

Abstract

The utility model relates to the technical field of lawn trimming, and discloses a lawn trimming device, which solves the problems in the background technology, and comprises a shell, a first driving motor mounted at the top of the shell, a trimming blade fixedly connected to the output end of the first driving motor, and a lifting mechanism, the lifting mechanism comprises an upper frame assembly and a lower frame assembly, the upper frame assembly and the lower frame assembly are completely the same in structure, each of the upper frame assembly and the lower frame assembly is provided with a fixed end and a movable end, and the fixed end of the upper frame assembly is hinged to the movable end of the lower frame assembly through a first connecting rod. By arranging the lifting mechanism, the shell is driven to ascend / descend through the lifting mechanism, then the pruning blades are driven to ascend / descend through movement of the shell, it is prevented that the telescopic rod is arranged between the driving mechanism and the pruning mechanism, damage to the telescopic rod is likely to be caused after long-time use, and the pruning height is more stable and safer when adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of lawn mowing, in particular to a lawn mowing device. Background Art

[0002] Lawn mowing is a basic task in gardening maintenance. It can not only maintain the beauty of the lawn, but also promote its healthy growth. Proper mowing can not only improve the disease resistance of the lawn, but also enhance its drought resistance and density. Through scientific mowing methods, we can provide a good growth environment for the lawn, thus creating a green and vibrant outdoor space.

[0003] The patent with publication number CN218998878U discloses a lawn mowing device, including a casing, universal wheels are installed at both ends of both sides of the casing, a driving mechanism is installed in the middle of the top of the casing, and the bottom of the driving mechanism is fixedly connected with the mowing mechanism, and the mowing mechanism includes a mounting plate, the mounting plate and the bottom of the driving mechanism are fixed, threaded holes are opened at four top corners of the mounting plate, a connecting plate is arranged at the bottom of the mounting plate, a plurality of threaded grooves are opened in sequence around the top of the connecting plate, the threaded grooves and the threaded holes are adapted and bolts are arranged inside, a plurality of mowing blades are fixedly connected around the outside of the connecting plate, and a push handle is fixedly connected to one end of the top of the casing. The device starts the telescopic rod through the controller to drive the mounting plate and the connecting plate to move up and down, so as to adjust the mowing height of the mowing blades. However, the telescopic rod is arranged between the driving mechanism and the mowing mechanism, and the telescopic rod is easily damaged by long-term use. For this reason, we propose a lawn mowing device. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides the following technical solutions: a lawn mowing device, comprising a shell, a first drive motor is installed on the top of the shell, and the output end of the first drive motor is fixedly connected to the mowing blade, and also includes a lifting mechanism, the lifting mechanism includes an upper frame assembly and a lower frame assembly, the structures of the two upper frame assemblies and the lower frame assemblies are exactly the same, the upper frame assembly and the lower frame assembly both have a fixed end and a movable end, the fixed end of the upper frame assembly and the movable end of the lower frame assembly are hinged through a first connecting rod, the movable end of the upper frame assembly and the fixed end of the lower frame assembly are hinged through a second connecting rod, the first connecting rod is hinged to the middle part of the second connecting rod, the second drive motor is installed at the bottom of the upper frame assembly through a motor bracket, the output end of the second drive motor is connected to the sliding end of the upper frame assembly through a screw thread transmission, the top of the upper frame assembly is fixedly connected to the top of the inner cavity of the shell, the four corners of the bottom of the lower frame assembly are provided with universal wheels, and one end of the top of the shell is connected to a push rod.

[0005] Preferably, the movable end includes a slide rail and a slider, the slide rail is fixedly mounted on the upper frame assembly, the slider is slidably connected to the slide rail, the slider of the upper frame assembly can be threadedly connected to the second drive motor, the slider of the upper frame assembly is hinged to the second connecting rod, and the slider of the lower frame assembly is hinged to the first connecting rod.

[0006] Preferably, a cleaning assembly is arranged behind the trimming blade, and the cleaning assembly includes a cleaning roller and a third drive motor. A connecting shaft is fixedly inserted in the cleaning roller, one end of the connecting shaft is rotatably connected to the lower frame assembly, and the other end of the connecting shaft is fixedly connected to the output end of the third drive motor. The third drive motor is fixedly connected to the lower frame assembly, and bristles are arranged on the surface of the cleaning roller.

[0007] Preferably, a trash bin is arranged behind the cleaning roller, the trash bin is fixedly connected to the lower frame assembly, and the opening of the trash bin faces the cleaning roller.

[0008] Preferably, an anti-slip sleeve is provided on the top of the push rod.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] By setting a lifting mechanism, the lifting mechanism drives the shell to rise / fall, and then the movement of the shell drives the trimming blade to rise / fall, thereby preventing the telescopic rod from being damaged due to long-term use due to the telescopic rod being set between the driving mechanism and the trimming mechanism, and making it more stable and safer when adjusting the trimming height. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 It is a schematic diagram of the front section structure of the utility model as a whole;

[0013] Figure 2 It is a schematic diagram of the overall top view of the cross-section structure of the utility model;

[0014] In the figure: 1. shell; 2. first drive motor; 3. trimming blade; 4. screw; 5. first connecting rod; 6. motor bracket; 7. second drive motor; 8. universal wheel; 9. slide rail; 10. slider; 11. connecting shaft; 12. cleaning roller; 13. trash can; 14. upper frame assembly; 15. lower frame assembly; 16. second connecting rod; 17. push rod; 18. third drive motor. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0016] Depend on Figure 1-2 The utility model includes a shell 1, a first drive motor 2 is installed on the top of the shell 1, and the output end of the first drive motor 2 is fixedly connected to the trimming blade 3, and also includes a lifting mechanism, the lifting mechanism includes an upper frame assembly 14 and a lower frame assembly 15, the structures of the two upper frame assemblies 14 and the lower frame assembly 15 are exactly the same, the upper frame assembly 14 and the lower frame assembly 15 both have a fixed end and a movable end, the fixed end of the upper frame assembly 14 and the movable end of the lower frame assembly 15 are hinged through a first connecting rod 5, the movable end of the upper frame assembly 14 and the fixed end of the lower frame assembly 15 are hinged through a second connecting rod 16, the first connecting rod 5 and the middle part of the second connecting rod 16 are hinged, the second drive motor 7 is installed at the bottom of the upper frame assembly 14 through a motor bracket 6, the output end of the second drive motor 7 is threadedly connected to the sliding end of the upper frame assembly 14 through a screw rod 4, the top of the upper frame assembly 14 is fixedly connected to the top of the inner cavity of the shell 1, universal wheels 8 are arranged at the four corners of the bottom of the lower frame assembly 15, and a push rod 17 is connected to one end of the top of the shell 1.

[0017] The movable end includes a slide rail 9 and a slider 10. The slide rail 9 is fixedly mounted on the upper frame assembly 14. The slider 10 is slidably connected to the slide rail 9. The slider 10 of the upper frame assembly 14 can be threadedly connected to the second drive motor 7. The slider 10 of the upper frame assembly 14 is hinged to the second connecting rod 16. The slider 10 of the lower frame assembly 15 is hinged to the first connecting rod 5.

[0018] A cleaning assembly is arranged behind the trimming blade 3, and the cleaning assembly includes a cleaning roller 12 and a third drive motor 18. A connecting shaft 11 is fixedly inserted in the cleaning roller 12, one end of the connecting shaft 11 is rotatably connected to the lower frame assembly 15, and the other end of the connecting shaft 11 is fixedly connected to the output end of the third drive motor 18. The third drive motor 18 is fixedly connected to the lower frame assembly 15, and bristles are arranged on the surface of the cleaning roller 12.

[0019] A dustbin 13 is disposed behind the cleaning roller 12 . The dustbin 13 is fixedly connected to the lower frame assembly 15 , and an opening of the dustbin 13 faces the cleaning roller 12 .

[0020] The top of the push rod 17 is provided with an anti-slip sleeve.

[0021] Working principle: When working, firstly, the second drive motor 7 is controlled to rotate to drive the screw 4 to rotate, and the slider 10 on the upper frame assembly 14 is driven to slide along the slide rail 9 through the threaded transmission of the screw 4. When the movable end and the fixed end are close to / away from each other, the upper frame assembly 14 and the lower frame assembly 15 can be moved away from / close to each other, thereby driving the shell 1 to rise / fall, and then the movement of the shell 1 drives the trimming blade 3 to rise / fall, so as to adjust the trimming height. The hand push rod 17 moves the device on the lawn through the universal wheel 8, and then starts the first drive motor 2 to drive the trimming blade 3 to rotate to trim the lawn. During the trimming process, the third drive motor 18 is started to drive the cleaning roller 12 to rotate through the connecting shaft 11, and when it touches the lawn, the cut grass leaves are swept into the trash can 13.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lawn mowing device, comprising a housing (1), a first drive motor (2) being mounted on the top of the housing (1), a mowing blade (3) being fixedly connected to the output end of the first drive motor (2), characterized in that: The invention also comprises a lifting mechanism, wherein the lifting mechanism comprises an upper frame assembly (14) and a lower frame assembly (15), wherein the structures of the upper frame assembly (14) and the lower frame assembly (15) are completely the same, wherein the upper frame assembly (14) and the lower frame assembly (15) both have a fixed end and a movable end, wherein the fixed end of the upper frame assembly (14) and the movable end of the lower frame assembly (15) are hingedly connected via a first connecting rod (5), and the movable end of the upper frame assembly (14) and the fixed end of the lower frame assembly (15) are hingedly connected via a second connecting rod (16). The first connecting rod (5) is hinged at the middle of the second connecting rod (16); a second drive motor (7) is installed at the bottom of the upper frame assembly (14) through a motor bracket (6); the output end of the second drive motor (7) is threadedly connected to the sliding end of the upper frame assembly (14) through a screw rod (4); the top of the upper frame assembly (14) is fixedly connected to the top of the inner cavity of the shell (1); universal wheels (8) are arranged at the four corners of the bottom of the lower frame assembly (15); and a push rod (17) is connected to one end of the top of the shell (1).

2. A lawn mowing device according to claim 1, characterized in that: The movable end comprises a slide rail (9) and a slider (10), wherein the slide rail (9) is fixedly mounted on an upper frame assembly (14), and the slider (10) is slidably connected to the slide rail (9), and the slider (10) of the upper frame assembly (14) can be threadedly connected to a second drive motor (7), the slider (10) of the upper frame assembly (14) is hinged to a second connecting rod (16), and the slider (10) of the lower frame assembly (15) is hinged to a first connecting rod (5).

3. A lawn mowing device according to claim 1, characterized in that: A cleaning assembly is arranged behind the trimming blade (3), and the cleaning assembly comprises a cleaning roller (12) and a third drive motor (18). A connecting shaft (11) is fixedly inserted in the cleaning roller (12), one end of the connecting shaft (11) is rotatably connected to the lower frame assembly (15), and the other end of the connecting shaft (11) is fixedly connected to the output end of the third drive motor (18), and the third drive motor (18) is fixedly connected to the lower frame assembly (15). Bristles are arranged on the surface of the cleaning roller (12).

4. A lawn mowing device according to claim 3, characterized in that: A trash box (13) is arranged behind the cleaning roller (12); the trash box (13) is fixedly connected to the lower frame assembly (15); and the opening of the trash box (13) faces the cleaning roller (12).

5. A lawn mowing device according to claim 1, characterized in that: The top of the push rod (17) is provided with an anti-slip sleeve.

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