A lawn weed trimming device

Abstract

The present invention belongs to the technical field of gardening maintenance, and discloses a lawn weed trimming device, comprising a housing assembly, a handle fixedly mounted on the top of the housing assembly, and two ground wheels movably mounted on the left and right sides of the housing assembly. The present invention cooperates with the housing assembly and the cutting assembly, and when the motor is in a rotating state, since the connecting shaft is located at the other end of the top of the second gear, the connecting shaft can drive the connecting rod to reciprocate through the connecting shaft through the linkage disk. While the device is working, the separation assembly can press the lawn down, and the separation grooves equidistantly provided on the top of the separation assembly can allow the grass at the bottom of the device to extend through the separation grooves. As the grass extends, the cutting plate will trim and remove the grass at the bottom. Furthermore, the device can trim the grass at the bottom of the lawn, thereby reducing the density of the weeds at the bottom and increasing the aesthetics after trimming.

Description

Technical Field

[0001] The invention belongs to the technical field of gardening maintenance, and in particular relates to a lawn weed trimming device. Background Art

[0002] A lawn is a grassy area that is artificially planted or maintained for the purpose of greening and beautifying the environment. It is one of the symbols of a country or a city's level of civilization. It is a ground cover composed of grasses and other fine-textured plants, with the roots and runners filling the soil surface. It is suitable for beautifying the environment, landscaping, purifying the air, conserving water and soil, and providing a venue for outdoor activities and sports. However, in the daily maintenance of the lawn, if the weeds are not trimmed well for a long time, the surface of the lawn will become messy. Generally, most families will use a lawn mower to trim the lawn. The lawn mower is mainly used to trim the edges and corners of the lawn trimmed by the lawn mower and areas under the trees, so as to make the lawn more beautiful. However, in the existing technology, the weeds can generally only be trimmed to the same height as a normal lawn.

[0003] However, this mowing method will cause the lawn to gradually become thicker and harder from the bottom, thereby reducing the beauty of the lawn. After the existing technology is in operation, since the weeds are the same height as the normal lawn, it is necessary to spray herbicides on them, which leads to increased labor and maintenance costs. The thickness of the bottom will also affect the foot feel of guests or travelers. For this reason, we provide a lawn ground weed mowing device. Summary of the Invention

[0004] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a lawn weed trimming device, which solves the problem that after the existing technology is in operation, the weeds are the same height as the normal lawn, and it is necessary to spray them with herbicides, which leads to increased labor and maintenance costs. The thickness of the bottom also affects the foot feel of guests or travelers.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a lawn weed trimming device, comprising a shell assembly, a handle fixedly mounted on the top of the shell assembly, two ground wheels movably mounted on the left and right sides of the shell assembly, a trimming assembly movably mounted inside the shell assembly, a cutting assembly fixedly mounted inside the shell assembly, an adjusting assembly movably sleeved on the bottom of the trimming assembly, and a cleaning assembly movably sleeved on the top of the trimming assembly.

[0006] Preferably, the shell assembly includes a shell, a middle plate is fixedly installed on the inner wall of the shell, a motor is fixedly installed on the top of the middle plate, a gear 1 is fixedly sleeved on the output shaft of the motor, the left and right sides of the shell are movably installed with the two ground wheels respectively, and the top of the shell is fixedly installed with the handle.

[0007] Preferably, the trimming assembly includes a linkage disk, a connecting shaft is movably mounted on the bottom of the linkage disk, a gear 2 is movably mounted on the bottom of the connecting shaft, a telescopic rod is fixedly mounted on the bottom of the gear 2, and a trimming fan blade is fixedly mounted on the bottom of the telescopic rod.

[0008] Preferably, there are two trimming components, which are movably installed on the left and right ends of the top of the middle plate respectively, the middle part of the outer surface of the linkage disk and the top of the middle plate are movably penetrated, the top of the outer surface of the telescopic rod and the bottom of the middle plate are movably penetrated, the outer surface of the gear 2 is engaged with the outer surface of the gear 1, and the telescopic part of the telescopic rod is cross-shaped.

[0009] Preferably, the adjustment assembly includes a connecting rod, an adjustment plate is fixedly installed on one side of the connecting rod, a fixing assembly is fixedly installed on one side of the middle plate, a spring telescopic rod is fixedly installed on one side of the fixing assembly, and a fixing rod is fixedly installed on the other side of the spring telescopic rod.

[0010] Preferably, the left and right ends of the bottom of the connecting rod are movably connected to the two trimming fan blades respectively, and a plurality of fixing grooves are equidistantly provided on one side of the adjustment plate. The outer surface of the fixing rod is adapted to the inner part of the fixing groove, and the other side of the adjustment plate is movably connected to one side of the middle plate.

[0011] Preferably, the cutting assembly includes a linkage rod, there are two linkage rods, and the linkage rods are movably installed on the front and rear ends of the inner top surface of the middle plate respectively. Two connecting assemblies are fixedly installed on one side of the two linkage rods, and the cutting plates are fixedly installed on the bottom of the two connecting assemblies. The inner wall of the outer shell is fixedly installed with a separation assembly.

[0012] Preferably, the top of the separation component is movably mounted on the bottom of the cutting plate, a plurality of separation slots are equidistantly provided on the top of the separation component, and the interiors of the two linkage rods are movably mounted on the two connecting shafts respectively.

[0013] Preferably, the cleaning assembly includes a cleaning plate, a corrugated tube is fixedly installed on one side of the cleaning plate, two fixed tubes are fixedly installed on the front and rear sides of the inner wall of the middle plate, two screws are movably installed inside the two fixed tubes, the outer surfaces of the two screws are threadedly sleeved with a linkage plate, and the tops of the outer surfaces of the screws are movably sleeved with two tracks.

[0014] Preferably, the other inner wall of the two tracks is respectively movable with the top of the two linkage plates, and two vertical grooves are respectively provided on the front and rear sides of the two fixed pipes. The linkage plate moves inside the two vertical grooves, and the interior of the cleaning plate is hollow. Several cleaning grooves are equidistantly provided on one side of the cleaning plate, and the interior of the cleaning plate is connected with the interior of the bellows through cleaning.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention cooperates with structures such as a housing component and a cutting component. When the motor is in a rotating state, the gear 1 of the bottom output shaft thereof can simultaneously drive the two gears 2 to rotate, and the connecting shaft at the top of the gear 2 is movably connected to the linkage rod. Since the connecting shaft is located at the other end of the top of the gear 2, the linkage rod can be driven to reciprocate through the connecting shaft through the linkage disk. At this time, the linkage rod drives the cutting plate to enter a reciprocating state through the connecting component. While the device is working, the separation component can press down the lawn, and the separation grooves equidistantly opened on the top of the separation component can enable the grass at the bottom of the device to extend through the separation grooves. While extending, the cutting plate will trim and remove the grass at the bottom, and the part that cannot be trimmed in time will be trimmed by the two rotating trimming blades. Further, the device can trim the grass at the bottom of the lawn, thereby reducing the density of the weeds at the bottom and increasing the aesthetic appearance after trimming.

[0017] The present invention cooperates with structures such as a trimming component and a cleaning component. When gear 2 rotates, the connecting shaft drives the linkage disk to rotate, and the top of the linkage disk is movably sleeved with a crawler. When the linkage disk rotates, the crawler drives the screw to rotate. While the screw rotates, the threaded groove on its outer surface and the vertical grooves on both sides of the fixed tube can make the screw drive the linkage plate to rise while rotating. As it rises, the bellows is squeezed, so that the water inside the bellows is sprayed out through the cleaning groove on one side of the cleaning plate. When the device is in working state, the grass pulp generated by the cutting of the trimming blades will adhere to the inside of the device and will need to be manually cleaned later. The cleaning plate can help the operator clean the inside to a certain extent, thereby reducing the operator's subsequent maintenance time.

[0018] The present invention cooperates with structures such as an adjustment component and a trimming component, and moves the fixing rod toward one side. At this time, the adjustment plate and the connecting rod are in an active state, and the left and right sides of the connecting rod are movably connected with the two trimming blades. At this time, by adjusting the height of the adjustment plate, the position of the trimming blades is also changed. The telescopic part of the telescopic rod is cross-shaped, which enables the trimming blades to still rotate when changing their position, thereby enabling the device to trim lawns of different heights, thereby enhancing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the appearance structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure of the housing assembly of the present invention;

[0021] Figure 3 A schematic diagram of the structure of the housing assembly and the trimming assembly of the present invention;

[0022] Figure 4 This is a schematic diagram of the overall structure of the trimming assembly of the present invention;

[0023] Figure 5 This is a schematic diagram of the coordination between the gear 2 and the linkage plate structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the connecting shaft and the linkage rod of the present invention;

[0025] Figure 7 This is a schematic diagram of the coordination of the trimming assembly and the cutting assembly of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the separation component and the cutting plate of the present invention;

[0027] Figure 9 This is a schematic diagram of the coordination of the trimming assembly and the cleaning assembly of the present invention;

[0028] Figure 10 This is a schematic diagram of the coordination between the cleaning plate and the bellows structure of the present invention;

[0029] Figure 11 This is a schematic diagram of the structure coordination between the housing component and the adjustment component of the present invention;

[0030] Figure 12 It is a schematic diagram of the overall structure of the adjustment component of the present invention.

[0031] In the figure: 1. Shell assembly; 101. Shell; 102. Motor; 103. Gear 1; 104. Middle plate; 2. Handle; 3. Adjustment assembly; 301. Connecting rod; 302. Adjustment plate; 303. Fixed assembly; 304. Spring telescopic rod; 305. Fixed rod; 4. Ground wheel; 5. Cutting assembly; 501. Linkage rod; 502. Connecting assembly; 503. Cutting plate; 504. Separation assembly; 6. Trimming assembly; 601. Linkage disk; 602. Gear 2; 603. Telescopic rod; 604. Trimming blades; 605. Connecting shaft; 7. Cleaning assembly; 701. Screw; 702. Track; 703. Linkage plate; 704. Bellows; 705. Fixed pipe; 706. Cleaning plate. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] like Figures 1 to 12 As shown, the present invention provides a lawn weed trimming device, including a housing assembly 1, a handle 2 is fixedly mounted on the top of the housing assembly 1, two ground wheels 4 are movably mounted on the left and right sides of the housing assembly 1, a trimming assembly 6 is movably mounted inside the housing assembly 1, a cutting assembly 5 is fixedly mounted inside the housing assembly 1, an adjusting assembly 3 is movably sleeved on the bottom of the trimming assembly 6, and a cleaning assembly 7 is movably sleeved on the top of the trimming assembly 6.

[0034] With the above solution, since the device is in a continuously moving state during operation, the overall height of the lawn trimmed by the cutting component 5 and the trimming component 6 is reduced, and the grass at the bottom is shorter. Furthermore, the device can trim the grass at the bottom of the lawn, thereby reducing the density of the weeds at the bottom and increasing the aesthetics of the trimmed lawn.

[0035] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown, the housing assembly 1 includes a housing 101, a middle plate 104 is fixedly installed on the inner wall of the housing 101, a motor 102 is fixedly installed on the top of the middle plate 104, and a gear 103 is fixedly sleeved on the output shaft of the motor 102. The left and right sides of the housing 101 are movably installed with the two ground wheels 4 respectively, and the top of the housing 101 is fixedly installed with the handle 2. The trimming assembly 6 includes a linkage disk 601, and a connecting shaft 605 is movably installed at the bottom of the linkage disk 601. The bottom of the connecting shaft 605 is movably installed. Gear 2 602 is installed, and a telescopic rod 603 is fixedly installed at the bottom of gear 2 602, and a trimming fan blade 604 is fixedly installed at the bottom of the telescopic rod 603. There are two trimming components 6 and they are movably installed at the left and right ends of the top of the middle plate 104 respectively. The middle part of the outer surface of the linkage disk 601 movably penetrates the top of the middle plate 104, and the top of the outer surface of the telescopic rod 603 movably penetrates the bottom of the middle plate 104. The outer surface of gear 2 602 is meshed with the outer surface of gear 1 103, and the telescopic part of the telescopic rod 603 is cross-shaped.

[0036] The above scheme is adopted: the motor 102 drives the gear 1 103 to rotate, at this time the two gears 2 602 are also in a rotating state, and the two telescopic rods 603 drive the trimming blades 604 to enter the working state. At this time, the weeds at the bottom of the device will be cut by the rotating trimming blades 604. During the rotation of the telescopic rod 603, the connecting shaft 605 can also simultaneously drive the linkage disk 601, and the linkage disk 601 drives the cleaning component 7 to enter the working state, and the connection state between the connecting shaft 605 and the linkage rod 501 also drives the cutting component 5 to enter the working state.

[0037] like Figure 11 、 Figure 12 As shown, the adjustment component 3 includes a connecting rod 301, an adjustment plate 302 is fixedly installed on one side of the connecting rod 301, a fixing component 303 is fixedly installed on one side of the middle plate 104, a spring telescopic rod 304 is fixedly installed on one side of the fixing component 303, and a fixing rod 305 is fixedly installed on the other side of the spring telescopic rod 304. The left and right ends of the bottom of the connecting rod 301 are respectively movably connected to the two trimming fan blades 604, and a plurality of fixing grooves are equidistantly provided on one side of the adjustment plate 302. The outer surface of the fixing rod 305 is adapted to the inner part of the fixing groove, and the other side of the adjustment plate 302 is movably connected to one side of the middle plate 104.

[0038] The above solution is adopted: by moving the fixing rod 305 toward one side and making it disengage from the fixing groove on one side of the adjusting plate 302, the adjusting plate 302 and the connecting rod 301 are in an active state, and the left and right sides of the connecting rod 301 are movably connected with the two trimming blades 604. At this time, by adjusting the height of the adjusting plate 302, the position of the trimming blades 604 is also changed, and the telescopic part of the telescopic rod 603 is cross-shaped, which makes the trimming blades 604 still able to rotate when the position is changed. After the height is adjusted, when the hand is directly released, the fixing rod 305 and the adjusting plate 302 can be fixedly engaged through the spring telescopic rod 304, and the position of the trimming blades 604 is fixed. Further, the device can adjust the height of lawn mowing, while increasing the practicality of the device.

[0039] like Figure 6 、 Figure 7 、 Figure 8As shown, the cutting component 5 includes a linkage rod 501, which has two linkage rods 501 and is movably installed on the front and rear ends of the inner top surface of the middle plate 104 respectively. Two connecting components 502 are fixedly installed on one side of the two linkage rods 501, and the cutting plate 503 is fixedly installed on the bottom of the two connecting components 502. A separation component 504 is fixedly installed on the inner wall of the outer shell 101, and the top of the separation component 504 is movably installed on the bottom of the cutting plate 503. A number of separation grooves are equidistantly provided on the top of the separation component 504, and the interiors of the two linkage rods 501 are movably installed on the two connecting shafts 605 respectively.

[0040] The above scheme is adopted: the motor 102 drives the gear 103 of the bottom output shaft to rotate, and during the rotation process, it can simultaneously drive the two gears 602 to rotate, and the connecting shaft 605 at the top of the gear 2 602 is movably connected with the linkage rod 501. Since the connecting shaft 605 is located at the other end of the top of the gear 2 602, the linkage plate 601 can be used to drive the linkage rod 501 to reciprocate through the connecting shaft 605. At this time, the linkage rod 501 drives the cutting plate 503 to enter the reciprocating state through the connecting assembly 502. When the device is working, the separation component 504 can press down the lawn, and the separation grooves equidistantly opened on the top of the separation component 504 can allow the grass at the bottom of the device to extend through the separation grooves. While extending, the cutting plate 503 will trim and remove the grass at the bottom. When the cutting plate 503 has not moved to the top of the separation groove, the two rotating trimming blades 604 will trim the grass at the top of the separation groove. Further, the device can trim the grass at the bottom of the lawn, thereby reducing the density of the weeds at the bottom and increasing the aesthetics after trimming.

[0041] like Figure 9 、 Figure 10 As shown, the cleaning assembly 7 includes a cleaning plate 706, and a bellows 704 is fixedly installed on one side of the cleaning plate 706. Two fixed tubes 705 are fixedly installed on the front and rear sides of the inner wall of the middle plate 104 respectively. Two screws 701 are movably installed inside the two fixed tubes 705. The outer surfaces of the two screws 701 are threadedly sleeved with linkage plates 703. The tops of the outer surfaces of the screws 701 are movably sleeved with two crawlers 702. The other ends of the inner walls of the two crawlers 702 are movable with the tops of the two linkage plates 601 respectively. Two vertical grooves are respectively provided on the front and rear sides of the two fixed tubes 705. The linkage plate 703 moves inside the two vertical grooves. The interior of the cleaning plate 706 is hollow. Several cleaning grooves are equidistantly provided on one side of the cleaning plate 706. The interior of the cleaning plate 706 is connected with the interior of the bellows 704 through cleaning.

[0042] The above scheme is adopted: when gear 2 602 rotates, the connecting shaft 605 drives the linkage disk 601 to rotate, and the top of the linkage disk 601 is movably sleeved with a track 702. When the linkage disk 601 rotates, the track 702 drives the screw 701 to rotate. When the screw 701 rotates, the threaded groove on its outer surface and the vertical grooves on both sides of the fixed tube 705 can make the screw 701 drive the linkage plate 703 to rise while rotating. As it rises, the bellows 704 is squeezed, so that the water flow inside the bellows 704 is sprayed out through the cleaning groove on one side of the cleaning plate 706. When the device is in working state, the grass pulp produced by the cutting of the trimming blades 604 will adhere to the inside of the device and will need to be manually cleaned later. The cleaning plate 706 can help the operator clean the inside to a certain extent, thereby reducing the operator's subsequent maintenance time.

[0043] The working principle and use process of the present invention:

[0044] First, the device needs to be placed on the top of the lawn that needs to be mowed, and then the fixing rod 305 is moved to one side. At this time, the adjustment plate 302 and the connecting rod 301 are in an active state, and the left and right sides of the connecting rod 301 are movable and connected with the two mowing blades 604. At this time, by adjusting the height of the adjustment plate 302, the position of the mowing blades 604 is also changed, and the telescopic part of the telescopic rod 603 is cross-shaped, which means that the mowing blades 604 can still rotate when the position is changed, so that the height of the lawn mowing can be adjusted. After the height is adjusted, when the hand is directly released, the spring telescopic rod 304 can make the fixing rod 305 and the adjustment plate 302 in a fixed engagement state, and the position of the mowing blades 604 is fixed, and the mowing work can be carried out at this time. By starting the motor 102 and making its output shaft rotate, the gear 1 103 at its bottom output shaft can simultaneously drive the two gears 2 602 to rotate, and the connecting shaft 605 at the top of the gear 2 602 is connected to the linkage rod 501 The movable sleeve, since the connecting shaft 605 is located at the other end of the top of the gear 2 602, at this time, the linkage plate 601 can be driven to reciprocate through the connecting shaft 605. At this time, the linkage rod 501 drives the cutting plate 503 to enter the reciprocating state through the connecting component 502. While the device is working, the separation component 504 can press down the lawn, and the separation grooves equidistantly opened on the top of the separation component 504 can allow the grass at the bottom of the device to extend through the separation grooves. While extending, the cutting plate 503 will trim and remove the grass at the bottom. When the cutting plate 503 has not moved to the top of the separation groove, the two rotating trimming blades 604 will trim the grass at the top of the separation groove. Since the device is in a state of continuous movement during operation, the overall height of the lawn trimmed by the cutting component 5 and the trimming component 6 is reduced, and the grass at the bottom is shorter. Further, the device can trim the grass at the bottom of the lawn, thereby reducing the density of the weeds at the bottom and increasing the beauty of the trimmed grass.

[0045] When gear 2 602 rotates, the linkage disk 601 is driven to rotate through the connecting shaft 605, and the top of the linkage disk 601 is movably sleeved with a track 702. When the linkage disk 601 rotates, the track 702 drives the screw 701 to rotate. While the screw 701 rotates, the threaded groove on its outer surface and the vertical grooves on both sides of the fixed tube 705 can make the screw 701 drive the linkage plate 703 to rise while rotating. As it rises, the bellows 704 is squeezed, so that the water flow inside the bellows 704 is sprayed out through the cleaning groove on one side of the cleaning plate 706. When the device is in working state, the grass pulp produced by the cutting of the trimming blades 604 will adhere to the inside of the device and will need to be manually cleaned later. The cleaning plate 706 can help the operator clean the inside to a certain extent, thereby reducing the operator's subsequent maintenance time.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A lawn weed trimming device, comprising a housing assembly (1), characterized in that: A handle (2) is fixedly mounted on the top of the housing assembly (1), two ground wheels (4) are movably mounted on the left and right sides of the housing assembly (1), a trimming assembly (6) is movably mounted inside the housing assembly (1), a cutting assembly (5) is fixedly mounted inside the housing assembly (1), an adjusting assembly (3) is movably sleeved on the bottom of the trimming assembly (6), and a cleaning assembly (7) is movably sleeved on the top of the trimming assembly (6); The housing assembly (1) includes a housing (101), a middle plate (104) is fixedly mounted on the inner wall of the housing (101), a motor (102) is fixedly mounted on the top of the middle plate (104), an output shaft of the motor (102) is fixedly sleeved with a gear 1 (103), the left and right sides of the housing (101) are movably mounted on the two ground wheels (4), and the top of the housing (101) is fixedly mounted on the handle (2); The trimming assembly (6) comprises a linkage disk (601), a connecting shaft (605) is movably mounted on the bottom of the linkage disk (601), a gear 2 (602) is movably mounted on the bottom of the connecting shaft (605), a telescopic rod (603) is fixedly mounted on the bottom of the gear 2 (602), and a trimming fan blade (604) is fixedly mounted on the bottom of the telescopic rod (603); The adjustment assembly (3) comprises a connecting rod (301), an adjustment plate (302) is fixedly mounted on one side of the connecting rod (301), a fixing assembly (303) is fixedly mounted on one side of the middle plate (104), a spring telescopic rod (304) is fixedly mounted on one side of the fixing assembly (303), and a fixing rod (305) is fixedly mounted on the other side of the spring telescopic rod (304); The left and right ends of the bottom of the connecting rod (301) are respectively movably connected to the two trimming blades (604); a plurality of fixing grooves are equidistantly provided on one side of the adjusting plate (302); the outer surface of the fixing rod (305) is adapted to the interior of the fixing groove; and the other side of the adjusting plate (302) is movably connected to one side of the middle plate (104); The cutting assembly (5) includes two linkage rods (501), which are movably mounted on the front and rear ends of the inner top surface of the middle plate (104), respectively; two connecting assemblies (502) are fixedly mounted on one side of the two linkage rods (501), cutting plates (503) are fixedly mounted on the bottoms of the two connecting assemblies (502), and a separating assembly (504) is fixedly mounted on the inner wall of the shell (101); The top of the separation component (504) is movably mounted on the bottom of the cutting plate (503), a plurality of separation slots are equidistantly provided on the top of the separation component (504), and the interiors of the two linkage rods (501) are movably mounted on the two connecting shafts (605) respectively; The cleaning assembly (7) comprises a cleaning plate (706), a bellows (704) is fixedly mounted on one side of the cleaning plate (706), two fixed tubes (705) are fixedly mounted on the front and rear sides of the inner wall of the middle plate (104), two screw rods (701) are movably mounted inside the two fixed tubes (705), a linkage plate (703) is threadedly sleeved on the outer surfaces of the two screw rods (701), and two crawlers (702) are movably sleeved on the tops of the outer surfaces of the screw rods (701); The other inner walls of the two crawlers (702) are respectively movable with the tops of the two linkage plates (601), and two vertical grooves are respectively provided on the front and rear sides of the two fixed tubes (705). The linkage plate (703) is movable inside the two vertical grooves. The interior of the cleaning plate (706) is hollow, and a plurality of cleaning grooves are equidistantly provided on one side of the cleaning plate (706). The interior of the cleaning plate (706) is connected to the interior of the bellows (704) through cleaning.

2. The lawn weed trimming device according to claim 1, characterized in that: There are two trimming components (6) which are movably mounted on the left and right ends of the top of the middle plate (104), respectively. The middle of the outer surface of the linkage disk (601) is movably penetrated by the top of the middle plate (104), the top of the outer surface of the telescopic rod (603) is movably penetrated by the bottom of the middle plate (104), the outer surface of the gear 2 (602) is meshed with the outer surface of the gear 1 (103), and the telescopic part of the telescopic rod (603) is cross-shaped.

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