Lawn trimming device with trimming height convenient to adjust

Abstract

The utility model discloses a lawn trimming device with trimming height convenient to adjust, which belongs to the technical field of lawn trimming and comprises a support, L-shaped connecting rods are fixed at four corners of the bottom end of the support, moving wheels are mounted at the ends of the L-shaped connecting rods, a push handle is mounted at the top end of the support, a motor is mounted at the top end of the support, and the motor is connected with the L-shaped connecting rods. The output end of the motor is connected with a driving wheel, the driving wheel is provided with a driven wheel in a transmission mode, an adjusting rod is fixed to the bottom end of the driven wheel and rotationally penetrates through the support, a cavity is formed in the center of the bottom end of the adjusting rod, adjusting holes are formed in the side wall of the cavity at equal intervals, and a mounting rod is inserted into the cavity. A blade is mounted at the bottom end of the mounting rod, a through hole is formed in the side wall of the mounting rod in a matched mode, and an adjusting bolt is connected into the through hole and the adjusting hole in a threaded mode; in this way, adjustment of the lawn trimming height is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lawn mowing, in particular to a lawn mowing device with an easily adjustable mowing height. Background Art

[0002] Lawn refers to grass that is artificially planted or maintained for greening and beautification. In order to ensure its ornamental effect and extend its service life, lawns need to be trimmed regularly during their growth, which can stimulate their growth, promote grass branching, increase lawn density, improve air permeability, and reduce the occurrence of diseases and insect pests.

[0003] At present, a Chinese patent with application number CN202320696775.1 discloses a lawn mowing vehicle, including a bottom plate, a driving motor is fixedly connected to the top of the bottom plate, a driving shaft is rotatably connected to the bottom of the driving motor, a rotating plate is fixedly connected to the side wall of the driving shaft away from the driving motor, a blade is fixedly connected to the side wall of the rotating plate, and a collecting device is arranged on the top of the bottom plate; the device can synchronously collect the mowed weeds when the lawn mowing vehicle is mowing the lawn; however, the mowing heights of lawns composed of different types of plants are different, and each lawn has a specific range of mowing height tolerance, that is, the range of the highest and lowest mowing heights that the lawn can tolerate. Above the mowing height tolerance, the grass will become fluffy, soft, and the lawn quality will be poor. Below the mowing height tolerance, the stem and leaf density of the grass increases, affecting the growth of roots and underground stems, the synthesis and storage capacity of carbohydrates is weak, the liquid in the plant body increases, and the resistance is reduced. The device cannot adjust the mowing height and is inconvenient to use.

[0004] Based on this, the utility model designs a lawn mowing device with easily adjustable mowing height to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a lawn mowing device with an easily adjustable mowing height.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A lawn mowing device with an easily adjustable mowing height comprises a bracket, L-shaped connecting rods are fixed at the four corners of the bottom end of the bracket, movable wheels are installed at the ends of the L-shaped connecting rods, a push handle is installed at the top end of the bracket, a motor is installed at the top end of the bracket, a driving wheel is connected to the output end of the motor, a driven wheel is transmitted by the driving wheel, an adjusting rod is fixed to the bottom end of the driven wheel, the adjusting rod is rotatably arranged through the bracket, a cavity is opened at the center of the bottom end of the adjusting rod, adjustment holes are arranged at equal intervals on the side walls of the cavity, a mounting rod is inserted in the cavity, a blade is installed at the bottom end of the mounting rod, a through hole is cooperated on the side wall of the mounting rod, and an adjusting bolt is threadedly connected between the through hole and the adjusting hole.

[0008] Furthermore, the motor is arranged near an edge of the top of the bracket, a protective frame is threadedly fixed to the top of the bracket, the motor, the driving wheel and the driven wheel are all located in the protective frame, and a through groove is opened on the side of the protective frame.

[0009] Furthermore, the bottom end of the adjusting rod is slightly lower than the bottom end of the bracket, and the adjusting hole is arranged at the portion of the adjusting rod located above the top end of the bracket.

[0010] Furthermore, the push handle includes an inclined rod, a sleeve rod and a handle, the handle is fixed to the end of the sleeve rod, the inclined rod is provided with positioning holes at equal intervals, the sleeve rod side wall is provided with a connecting hole, and the connecting hole and the positioning hole are threadedly connected with a positioning bolt.

[0011] Furthermore, a connecting groove is provided at the top of the bracket, a connecting plate is fixed by threads in the connecting groove, and the oblique rod is fixed on the connecting plate.

[0012] Furthermore, a through slot is provided at the top of the bracket, an expansion frame is installed in the through slot, an exhaust pipe is connected to the top of the expansion frame, a grass box is placed on the bracket, the exhaust pipe and the grass box are connected, and the other side of the grass box is connected to an exhaust fan.

[0013] Furthermore, the length of the through slot is smaller than the width of the bracket, and a baffle is fixed to the top edge of the expansion frame.

[0014] Furthermore, the exhaust pipe is threadedly fixed on the side of the grass box, the part of the expansion frame located below the bracket is made of bendable material, the output end of the exhaust fan is connected to a connecting pipe, the connecting pipe is threadedly fixed on the side of the grass box and connected to the grass box, and a filter is installed on the end of the connecting pipe. Beneficial Effects

[0015] 1. By setting the adjusting rod, cavity, adjusting hole, mounting rod, through hole and adjusting bolt, the adjusting hole at the appropriate position can be selected according to the specific type of plant, the mounting rod can be moved to adjust its position, and the through hole and the adjusting hole can be threadedly connected by the adjusting bolt to realize the installation and fixation of the mounting rod and the blade, thereby realizing the adjustment of the lawn mowing height;

[0016] 2. By setting the inclined rod, sleeve rod, handle, positioning hole, connecting hole and positioning bolt, the appropriate positioning hole can be selected to adjust the position of the sleeve rod, and the positioning hole and the connecting hole can be threadedly connected by the positioning bolt to fix the sleeve rod. The position of the handle can be adjusted to facilitate the use of the operator; by setting the expansion frame, exhaust pipe, grass box and exhaust fan, when the exhaust pipe is moved to the mowing position, under the action of the exhaust fan, the cut grass is sucked into the grass box through the exhaust pipe for collection; by setting the through groove, baffle and connecting pipe, the installation of the expansion frame and the connection of the grass box, exhaust pipe and exhaust fan are facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a three-dimensional diagram of the main structure of a lawn mowing device with easily adjustable mowing height according to the utility model;

[0019] Figure 2 A three-dimensional diagram of the support structure of a lawn mowing device with easily adjustable mowing height according to the utility model;

[0020] Figure 3 It is a three-dimensional diagram of the driving wheel structure of a lawn mowing device with easily adjustable mowing height according to the utility model;

[0021] Figure 4 A three-dimensional diagram of the mounting rod structure of a lawn mowing device with easily adjustable mowing height according to the utility model;

[0022] Figure 5 The utility model is a three-dimensional diagram of the grass box structure of a lawn mowing device with easily adjustable mowing height.

[0023] The numbers in the figure represent:

[0024] 1. Bracket; 2. L-shaped connecting rod; 3. Moving wheel; 4. Push handle; 5. Motor; 6. Driving wheel; 7. Driven wheel; 8. Adjusting rod; 9. Cavity; 10. Adjusting hole; 11. Mounting rod; 12. Blade; 13. Through hole; 14. Adjusting bolt; 15. Protective frame; 16. Through slot; 17. Oblique rod; 18. Sleeve rod; 19. Handle; 20. Positioning hole; 21. Connecting hole; 22. Positioning bolt; 23. Connecting slot; 24. Connecting plate; 25. Through slot; 26. Extension frame; 27. Exhaust duct; 28. Grass box; 29. ​​Exhaust fan; 30. Baffle; 31. Connecting pipe; 32. Filter. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model is further described below in conjunction with embodiments.

[0027] In some embodiments, please refer to the accompanying drawings. Figure 1 , Figure 2 , Figure 3 and Figure 4 , a lawn mowing device with an adjustable mowing height, comprising a bracket 1, L-shaped connecting rods 2 are fixed at the four corners of the bottom end of the bracket 1, a moving wheel 3 is installed at the end of the L-shaped connecting rod 2, a push handle 4 is installed at the top of the bracket 1, a motor 5 is installed at the top of the bracket 1, a driving wheel 6 is connected to the output end of the motor 5, a driven wheel 7 is driven by the driving wheel 6, an adjusting rod 8 is fixed at the bottom end of the driven wheel 7, the adjusting rod 8 is rotatably arranged through the bracket 1, a cavity 9 is opened at the center of the bottom end of the adjusting rod 8, and adjusting holes 10 are evenly spaced on the side wall of the cavity 9, a mounting rod 11 is inserted in the cavity 9, a blade 12 is installed at the bottom end of the mounting rod 11, a through hole 13 is opened on the side wall of the mounting rod 11, and an adjusting bolt 14 is threadedly connected to the through hole 13 and the adjusting hole 10;

[0028] In the embodiment of the utility model, when mowing the lawn, the adjusting hole 10 at a suitable position can be selected according to the specific type of plants, the mounting rod 11 can be moved to adjust its position, and the through hole 13 and the adjusting hole 10 can be threadedly connected by the adjusting bolt 14 to achieve the installation and fixation of the mounting rod 11 and the blade 12. The operator holds the push handle 4 and drives the device to move under the action of the moving wheel 3. With the operation of the motor 5, the driving wheel 6 is driven to rotate, thereby driving the driven wheel 7 to rotate, and driving the blade 12 to rotate to mow the lawn;

[0029] In the embodiment of the utility model, by providing the adjusting rod 8, the cavity 9, the adjusting hole 10, the mounting rod 11, the through hole 13 and the adjusting bolt 14, the adjusting hole 10 at a suitable position can be selected according to the specific type of plant, the mounting rod 11 can be moved to adjust its position, and the through hole 13 and the adjusting hole 10 can be threadedly connected by the adjusting bolt 14 to achieve the installation and fixation of the mounting rod 11 and the blade 12, thereby achieving the adjustment of the lawn mowing height;

[0030] In an example of the present invention, the motor 5 is arranged near an edge of the top of the bracket 1, and a protective frame 15 is threadedly fixed on the top of the bracket 1. The motor 5, the driving wheel 6 and the driven wheel 7 are all located in the protective frame 15. A through groove 16 is provided on the side of the protective frame 15. The motor 5, the driving wheel 6 and the driven wheel 7 are protected by the protective frame 15. The through groove 16 is arranged to facilitate the installation of the adjustment bolt 14. The bottom end of the adjustment rod 8 is slightly lower than the bottom end of the bracket 1. The adjustment hole 10 is arranged on the part of the adjustment rod 8 located above the top of the bracket 1, which is convenient for the connection of the adjustment bolt 14. The push handle 4 includes an inclined rod 17, a sleeve rod 18 and a handle 19. The handle 19 is fixed to the end of the sleeve rod 18, and the inclined rod 17 is provided with positioning holes 20 at equal intervals. A connecting hole 21 is provided on the side wall of the sleeve rod 18, and a positioning bolt 22 is connected to the connecting hole 21 and the positioning hole 20 through internal threads. The appropriate positioning hole 20 can be selected to adjust the position of the sleeve rod 18, and the positioning hole 20 and the connecting hole 21 are threadedly connected by the positioning bolt 22 to achieve the fixing of the sleeve rod 18. The position of the handle 19 can be adjusted, which is convenient for the operator to use; a connecting groove 23 is provided at the top of the bracket 1, and a connecting plate 24 is fixed to the internal threads of the connecting groove 23, and the inclined rod 17 is fixed on the connecting plate 24, which is convenient for loading and unloading the push handle 4;

[0031] In some embodiments, Figure 1 and Figure 5 As shown, as a preferred embodiment of the utility model, a through slot 25 is provided at the top of the bracket 1, the length of the through slot 25 is less than the width of the bracket 1, an expansion frame 26 is installed in the through slot 25, a baffle 30 is fixed to the top edge of the expansion frame 26, an exhaust pipe 27 is connected to the top of the expansion frame 26, a grass box 28 is placed on the bracket 1, the exhaust pipe 27 and the grass box 28 are connected, and an exhaust fan 29 is connected to the other side of the grass box 28, the exhaust pipe 27 is threadedly fixed to the side of the grass box 28, the part of the expansion frame 26 located below the bracket 1 is made of bendable material, the output end of the exhaust fan 29 is connected to a connecting pipe 31, the connecting pipe 31 is threadedly fixed to the side of the grass box 28 and is connected to the grass box 28, and a filter screen 32 is installed at the end of the connecting pipe 31;

[0032] In the embodiment of the utility model, when mowing the lawn, the adjusting hole 10 at a suitable position can be selected according to the specific type of plants, the mounting rod 11 can be moved to adjust its position, and the through hole 13 and the adjusting hole 10 can be threadedly connected by the adjusting bolt 14 to achieve the installation and fixation of the mounting rod 11 and the blade 12. The suitable positioning hole 20 can be selected to adjust the position of the sleeve rod 18, and the positioning hole 20 and the connecting hole 21 can be threadedly connected by the positioning bolt 22 to achieve the fixation of the sleeve rod 18. The position of the handle 19 can be adjusted, and the operator holds the handle 19 and drives the device to move under the action of the moving wheel 3. With the operation of the motor 5, the driving wheel 6 is driven to rotate, thereby driving the driven wheel 7 to rotate, and driving the blade 12 to rotate to mow the lawn. When the exhaust pipe 27 moves to the mowing position, under the action of the exhaust fan 29, the cut grass is sucked into the grass box 28 through the exhaust pipe 27 for collection;

[0033] In the embodiment of the utility model, by providing an expansion frame 26, an exhaust pipe 27, a grass box 28, and an exhaust fan 29, when the exhaust pipe 27 moves to the mowing position, under the action of the exhaust fan 29, the cut grass is sucked into the grass box 28 through the exhaust pipe 27 for collection; by providing a through groove 25, a baffle 30 and a connecting pipe 31, the installation of the expansion frame 26 and the connection between the grass box 28, the exhaust pipe 27 and the exhaust fan 29 are facilitated.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lawn mowing device with an adjustable mowing height, comprising a bracket (1), characterized in that: L-shaped connecting rods (2) are fixed at the four corners of the bottom end of the bracket (1), and a moving wheel (3) is installed at the end of the L-shaped connecting rod (2). A push handle (4) is installed at the top end of the bracket (1). A motor (5) is installed at the top end of the bracket (1). The output end of the motor (5) is connected to a driving wheel (6), and the driving wheel (6) drives a driven wheel (7). An adjusting rod (8) is fixed at the bottom end of the driven wheel (7). The adjusting rod (8) is rotatably arranged through the bracket (1). A cavity (9) is opened at the center of the bottom end of the adjusting rod (8), and adjusting holes (10) are arranged at equal intervals on the side wall of the cavity (9). A mounting rod (11) is inserted into the cavity (9), and a blade (12) is installed at the bottom end of the mounting rod (11). A through hole (13) is opened on the side wall of the mounting rod (11), and an adjusting bolt (14) is connected to the through hole (13) and the adjusting hole (10) through the inner thread.

2. The lawn mowing device with adjustable mowing height according to claim 1, characterized in that: The motor (5) is arranged near an edge of the top end of the bracket (1); a protective frame (15) is threadedly fixed to the top end of the bracket (1); the motor (5), the driving wheel (6) and the driven wheel (7) are all located in the protective frame (15); and a through groove (16) is provided on a side of the protective frame (15).

3. The lawn mowing device with adjustable mowing height according to claim 2, characterized in that: The bottom end of the adjusting rod (8) is slightly lower than the bottom end of the bracket (1), and the adjusting hole (10) is arranged at the portion of the adjusting rod (8) located above the top end of the bracket (1).

4. The lawn mowing device with adjustable mowing height according to claim 3, characterized in that: The push handle (4) comprises an inclined rod (17), a sleeve rod (18) and a handle (19); the handle (19) is fixed to the end of the sleeve rod (18); positioning holes (20) are formed on the inclined rod (17) at equal intervals; a connecting hole (21) is formed on the side wall of the sleeve rod (18); and a positioning bolt (22) is internally threadedly connected between the connecting hole (21) and the positioning hole (20).

5. The lawn mowing device with adjustable mowing height according to claim 4, characterized in that: The top end of the bracket (1) is provided with a connection groove (23), a connection plate (24) is fixed to the internal thread of the connection groove (23), and the inclined rod (17) is fixed to the connection plate (24).

6. The lawn mowing device with adjustable mowing height according to claim 5, characterized in that: A through slot (25) is provided at the top of the bracket (1), an expansion frame (26) is installed in the through slot (25), an exhaust pipe (27) is connected to the top of the expansion frame (26), a grass box (28) is placed on the bracket (1), the exhaust pipe (27) and the grass box (28) are connected, and the other side of the grass box (28) is connected to an exhaust fan (29).

7. The lawn mowing device with adjustable mowing height according to claim 6, characterized in that: The length of the through slot (25) is smaller than the width of the bracket (1), and a baffle (30) is fixed to the top edge of the expansion frame (26).

8. The lawn mowing device with adjustable mowing height according to claim 7, characterized in that: The exhaust pipe (27) is threadedly fixed on the side of the grass box (28); the portion of the expansion frame (26) located below the bracket (1) is made of a bendable material; the output end of the exhaust fan (29) is connected to a connecting pipe (31); the connecting pipe (31) is threadedly fixed on the side of the grass box (28) and is connected to the grass box (28); a filter screen (32) is installed at the end of the connecting pipe (31).

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